JP6561392B2 - Enclosure - Google Patents

Description

  The present invention relates to a housing that can be easily assembled and can exhibit desired performance.

Conventionally, for example, there are cases such as an underground structure case (for example, a water meter box) described in Patent Document 1 below.
A conventional housing includes a four-sided assembling frame body in plan view, a lid body that opens and closes an upper surface opening of the assembling frame body, and a lower surface material that closes a lower surface opening of the assembling frame body. Prepare.
The assembly type frame body is a quadrilateral shape in a plan view, and at least a corner portion of the quadrilateral shape is provided with a column part having the same size regardless of the width and depth size of the assembly type frame body. A groove groove is formed on one of the side wall portions provided between the support column portions and a convex groove portion is formed on either one of the side wall portions to be fitted to the groove groove. A plate-like side wall is provided between the support columns by stopping.

Japanese Patent No. 3509769

However, in the above-described conventional casing, for example, one or a plurality of the four side wall portions may be reversed and the front and back surfaces of the one or more side wall portions may be reversed. In this case, it is necessary to reassemble the housing, and there is a risk of taking time for assembly.
The present invention has been made in view of these points, and an object of the present invention is to provide a housing that can be easily assembled and can exhibit desired performance.

  The casing of the present invention is a casing that forms a side wall of the casing with a rectangular first plate and a second plate each having a first surface and a second surface on the front and back, A pair of plate coupling bodies that rotatably couple the end portions of the first plate body and the second plate body by a connection portion, the first plate body from an end surface opposite to the connection portion. The first plate has a protrusion protruding in the extending direction, and the second plate penetrates in the thickness direction of the second plate at the end opposite to the connection portion. The connecting plate member has a hole, and one of the pair of plate connectors is inserted into the other hole, and the other protrusion is inserted into the first hole. A side wall having a rectangular shape in plan view is formed by selectively selecting one of the second surfaces as the inner surface side or the outer surface side.

  According to the present invention, it is possible to provide a housing that can be easily assembled.

It is a whole perspective view in the case of using the housing concerning one embodiment for prevention of settlement. It is a disassembled perspective view when a housing | casing same as the above is used for a settlement prevention. It is a figure which shows the vertical wall of a housing | casing same as the above, FIG.3 (a) is a perspective view of a vertical wall, FIG.3 (b) is a front view of the 1st surface of a vertical wall, FIG.3 (c) FIG. 4 is a front view of a second surface of the vertical wall. It is a figure which shows the horizontal wall of a housing | casing same as the above, FIG.4 (a) is a perspective view of a horizontal wall, FIG.4 (b) is a front view of the 1st surface of a horizontal wall, FIG.4 (c) is a horizontal wall. It is a front view of a 2nd surface. It is a figure which shows the board coupling body which combines the vertical wall and horizontal wall of a housing | casing same as the above, FIG.5 (a) is an exploded view of a vertical wall, a horizontal wall, and a connection member, FIG.5 (b) is a vertical wall and a horizontal wall. 5 (c) is a plate coupling body folded so that the first surfaces of the vertical wall and the horizontal wall face each other, and FIG. FIG. 5E is a perspective view in which the plate coupling body is rotated at a substantially right angle. FIG. 5E is a plate coupling body folded so that the second surfaces with the horizontal wall face each other. It is a figure which shows the structure of the connection part in case a housing | casing same as the above is used for prevention of settlement, FIG.6 (a) is sectional drawing of a connection part, FIG.6 (b) is an expanded sectional view of a connection part. It is a figure when a housing | casing same as the above is used for cold districts, FIG.7 (a) is a whole perspective view when a housing | casing is used for cold districts, FIG.7 (b) is a housing | casing for cold districts. It is a disassembled perspective view when doing. It is a figure which shows the structure of a connection part in case a housing | casing same as the above is used for cold districts, FIG.8 (a) is sectional drawing of a connection part, FIG.8 (b) is a figure which provides a heat insulating material in a rib structure. is there. It is a figure which shows the housing | casing which can stack a side wall in a short side direction. It is a figure which shows the modification 1 of a housing | casing, FIG. 10 (a) is a front view which shows the guide rib formed in a connection part, FIG.10 (b) shows the engagement state of the connection part which provides a guide rib. FIG. FIGS. 11A and 11B are diagrams showing a second modification of the housing, in which FIG. 11A is a partial perspective view of a horizontal wall in which a detachment preventing portion is formed, FIG. 11B is a cross-sectional view of the horizontal wall, and FIG. Is a partial perspective view of the vertical wall, and FIG. 11D is a front view of the horizontal wall. FIG. 12A is a diagram showing a state of fitting of the detachment preventing portion of the second modification of the housing, and FIG. 12A is a diagram before the detachment preventing portion is fitted by inserting the protruding portion into the hole portion, and FIG. b) is a view after the disengagement preventing portion is fitted. It is a figure which shows the housing | casing which provided the notch groove in the projection part which forms the removal prevention part of the modification 3 of a housing | casing. It is a figure which shows the mode of fitting of the detachment prevention part which provides the notch groove of the modification 4 of a housing | casing, Fig.14 (a) is a figure before inserting a protrusion part in a hole and fitting a detachment prevention part. FIG. 14B is a view after the disengagement preventing portion is fitted, and FIG. 14C is a partially enlarged view of region C in FIG. 14B.

<First Embodiment>
A first embodiment showing an example of an embodiment to which the present invention is applied (hereinafter, this embodiment) will be described in detail with reference to the drawings. The technical scope of the present invention is not limited to this embodiment. The present embodiment can be variously modified without departing from the spirit of the present invention.

FIG. 1 is an overall perspective view in the case of using an assembly-type housing 1 according to the present embodiment for preventing settlement. FIG. 2 is an exploded perspective view when the housing 1 is used for preventing settlement. In addition, subsidence prevention is preventing sinking in the ground of the housing | casing 1 buried under ground.
The housing | casing 1 is an underground structure protection box (for example, water meter box) which protects underground structures, such as a water meter, for example. The housing 1 has a rectangular box shape in plan view. In the following description, each part will be described with the direction in which the long side extends in the plan view of the housing 1 as the left-right direction and the direction in which the short side extends as the front-rear direction.

  As shown in FIG. 2, the housing 1 includes a lid body 2, an upper frame 3, an assembly frame body 4, and a bottom member 5, which are laminated. The lid 2, the upper frame 3, the assembly frame 4, and the bottom member 5 constituting the housing 1 are formed of, for example, synthetic resin, but a part or all of them may be formed of metal.

The assembly frame 4 has a rectangular ring shape in plan view having four front, rear, left and right side surfaces, and has a rectangular tube shape with upper and lower surfaces opened, and functions as a side wall of the housing 1.
Further, the upper frame 3 is installed on the upper side of the assembly frame body 4. The upper frame 3 is a rectangular frame that has an opening 6 and has a rectangular shape in plan view. A plate-like lid 2 capable of opening and closing the opening 6 is detachably attached to the opening 6 of the upper frame 3 so as to be openable and closable. A bottom member (bottom lid) 5 having a bottom surface at the bottom with the assembly frame 4 side opened is installed below the assembly frame 4. The bottom member 5 serves to block the lower side of the housing 1.
Hereinafter, each part will be described in detail.

[Upper frame]
The upper frame 3 has four shelf portions 3a and 3b protruding from the inner side surface and a pair of convex portions 12 protruding from the left and right opposing inner side surfaces.
The shelf portion includes a shelf portion 3 b that protrudes from the inner side surfaces on both the front and rear sides of the upper frame 3, and a pair of shelf portions (side shelf portions) 3 a that protrude from the inner side surfaces on the left and right sides of the upper frame 3. The shelf portions 3a and 3b support the four sides of the closed lid body 2 from below. A plurality of inclined surfaces 3d for sand removal are formed on the top surfaces of the shelf portions 3a and 3b. The side shelf portion 3a forms a concave guide portion 3c that opens upward as viewed from the inside on the rear side. As will be described later, the guide portion 3 c guides the rotation of the lid body 2 by sliding the sliding surface 11 a of the lid body 2.
The convex part 12 is located in the vicinity of the guide part 3c. An elastic part (biasing means) 12 a is provided on the upper side of the convex part 12. The elastic part 12 a is formed integrally with the upper frame 3. The elastic part 12a functions as an urging means. When the convex portion 12 moves outward in the left-right direction, the elastic portion 12a generates a force for returning the convex portion 12 to the initial position by its own elastic force.
A plurality of assembly recesses 7 b are formed on the lower end surface of the upper frame 3. The assembly recesses 7b are fitted with assembly projections 7a formed on the upper end surface of the assembly frame 4. In addition, the shape of the assembly convex part 7a and the assembly recessed part 7b may be other. For example, the assembly convex part 7a may be formed as a locking piece and the assembly concave part 7b may be formed as an engagement part.

[Lid]
The lid 2 has a rectangular plate shape having a longitudinal direction in the left-right direction. On the rear side of the end surfaces on both the left and right sides of the lid body 2, recesses 11 are formed that serve as pivots when the lid body 2 is rotated with respect to the upper frame 3. The concave portion 11 of the lid 2 is detachably engaged with the convex portion 12 formed on the upper frame 3. The lid 2 can be opened and closed with respect to the opening 6 of the upper frame 3 by the engagement between the concave portion 11 of the lid 2 and the convex portion 12 of the upper frame 3.
The lid body 2 has a sliding surface 11 a below the recess 11. The sliding surface 11a is a substantially arc-shaped curved surface protruding downward. When the concave portion 11 of the lid body 2 accommodates the convex portion 12 of the upper frame 3 and the lid body 2 rotates, the sliding surface 11 a slides the guide portion 3 c to rotate the lid body 2. invite.

[Bottom member]
The bottom member 5 supports the assembly frame 4 from below. The bottom member 5 includes a rectangular bottom plate 5 a, a lower side wall 5 b that protrudes upward from the periphery of the bottom plate 5 a, and a side plate 19 that has a pipe hole 16. The assembly frame 4 is mounted on the upper side of the lower side wall 5b. The lower side wall 5 b constitutes a side wall together with the assembly frame body 4.

  A plurality of long holes 18 are formed in the bottom plate 5a. The long hole 18 discharges the water flowing into the housing 1 to the outside of the housing 1 and can also be used as an attachment hole for fixing a base of a water meter accommodated in the housing 1.

A plurality of assembly protrusions 8a are formed on the upper end surface of the lower side wall 5b. The assembly convex portion 8 a is fitted with an assembly concave portion 8 b formed on the lower end surface of the assembly frame body 4. In addition, the shape of the assembly convex part 8a and the assembly recessed part 8b may be other. For example, the assembly convex portion 8a may be formed as a locking piece and the assembly concave portion 8b may be formed as an engagement portion.
The lower side wall 5b is provided with a notch-shaped fitting port 14 that opens upward. The side plate 19 is detachably fitted into the fitting port 14.

  A pipe material (not shown) penetrating through the inside and outside of the housing 1 is inserted into the pipe hole 16 of the side plate 19. The pipe material is provided, for example, for flowing water upstream or downstream of a water meter (underground structure) (not shown). The tube hole portion 16 has a cutout shape that opens upward.

  The side plate 19 is prepared in a plurality of types having different sizes or numbers of the tube hole portions 16. The side plate 19 is fitted into the fitting port 14 by selecting any one of a plurality of types of side plates. Thereby, the housing | casing 1 can respond to the number of underground structures accommodated in the housing | casing 1 easily by the change of the side plate 19. FIG. The housing 1 can change the number of hole portions 16 for pipes only by exchanging the side plate 19. Moreover, when accommodating the housing | casing 1 which does not require the hole 16 for tubes in the housing | casing 1, the flat side plate 19 which does not have the hole 16 for tubes is used. That is, the housing 1 can easily cope with a change in the type and number of underground structures housed in the housing 1 by simply replacing the side plate 19.

  1 and 2, the fitting port 14 is provided on the short side of the lower side wall 5b of the bottom member 5, but may be provided on the long side. Further, the fitting port 14 may be provided on both the short side and the long side of the lower side wall 5 b of the bottom member 5, and the fitting port 14 on the unused side may be blocked with a side plate 19 without the pipe hole 16. . You may provide the fitting port 14 in the notch shape opened to the lower side in the side wall which the assembly frame 4 comprises. Further, the fitting port 14 may be formed on the lower side wall 5 b of the bottom member 5 and the side wall of the assembly frame body 4.

[Assembly frame (side wall)]
The assembly frame body 4 is located between the bottom member 5 and the upper frame 3 and constitutes a part of the side wall of the housing 1. The assembly frame body 4 includes a vertical wall 21 (first plate body) and a lateral wall 41 (second plate body) that are side walls of the housing 1 and a connecting member 10 that connects them. The assembly frame body 4 includes a pair of plate coupling bodies 9 each having a vertical wall 21, a horizontal wall 41, and a connection member (connection portion) 10.

The vertical wall 21 faces the two left and right surfaces of the assembly frame 4 apart from each other. Further, the lateral wall 41 faces the two front and rear surfaces of the assembly frame 4 away from each other. The vertical wall 21 is shorter than the horizontal wall 41 in the longitudinal direction (extending direction). The horizontal wall 41 is longer than the vertical wall 21 in the longitudinal direction. However, the dimension of the vertical wall 21 and the horizontal wall 41 may be other, for example, the dimension of the vertical wall 21 and the horizontal wall 41 may be the same.
Moreover, the dimension of the vertical wall 21 may be longer than the horizontal wall 41 according to the number of water meters accommodated in the housing 1. The dimension of the horizontal wall 41 may be a dimension corresponding to the dimension of the water meter accommodated in the housing 1. The lid 2, the upper frame 3, and the bottom member 5 of the housing 1 have dimensions that match the assembly frame 4.

<Connected plate>
The pair of plate coupling bodies 9 includes a long plate-like vertical wall 21 (first plate body), a lateral wall 41 (second plate body), and a connection member (connection portion) 10. The connecting member 10 constitutes a joint 60 by rotatably connecting the ends of the vertical wall 21 and the horizontal wall 41.

3A is a perspective view showing the vertical wall 21, FIG. 3B is a front view of the vertical wall 21 as viewed from the first surface 31, and FIG. 3C is a vertical wall. FIG. 21 is a rear view when 21 is viewed from the second surface 36.
4A is a perspective view showing the horizontal wall 41, FIG. 4B is a front view of the horizontal wall 41 as viewed from the first surface 51, and FIG. FIG.
FIG. 5A is an exploded view of the plate coupling body 9, and FIGS. 5B to 5E are perspective views of the plate coupling body 9 with the joint portion 60 as the center.
FIGS. 6A and 6B are a top view and a cross-sectional view showing a connection structure between a pair of plate connecting bodies 9.

As shown in FIGS. 3-5, the vertical wall 21 has the 1st surface 31 and the 2nd surface 36 on the front and back, respectively. Similarly, the horizontal wall 41 has the 1st surface 51 and the 2nd surface 56 on the front and back, respectively. In the state where the vertical wall 21 and the horizontal wall 41 are arranged in a straight line, the first surfaces 31 and 51 (or the second surfaces 36 and 56) face in the same direction.
Hereinafter, each part structure of the board coupling body 9 is demonstrated concretely.

<Vertical wall (first plate)>
As shown to Fig.3 (a), the vertical wall (short side wall, 1st board) 21 is a long plate-shaped member.
A protrusion 23 and an extension 25 are formed at the first end 22a in the longitudinal direction of the vertical wall 21, and a connecting protrusion 28 is formed at the second end 22b opposite to the first end 22a. Form.

The protrusion 23 protrudes from the first end 22 a of the vertical wall 21 in the extending direction (longitudinal direction) of the vertical wall 21. The protrusion 23 has a T shape in plan view. In the present embodiment, two protrusions 23 are formed on the top and bottom. The protrusion 23 is detachably engaged with a hole 46 formed in a second end 42b of the lateral wall 41 described later. The number of the protrusions 23 formed on the vertical wall 21 and the number of holes 46 formed on the horizontal wall 41 may be one or a plurality of two or more.
As shown in FIG. 6B, the protruding portion 23 has a distal end portion 63, a neck portion 62, and a root portion 61 having different widths in the thickness direction from the distal end side. The tip portion 63 is located at the end of the protruding portion 23 in the protruding direction. The neck 62 is narrower than the tip 63 in the thickness direction. The root portion 61 is located on the most root side of the protrusion 23 and is wider in the plate thickness direction than the neck portion 62. The protrusion 23 makes the dimensions in the height direction of the tip part 63, the neck part 62, and the root part 61 (that is, the vertical dimension of the vertical wall 21) uniform.

  As shown in FIG. 3A, the extending portion 25 extends in the extending direction of the vertical wall 21 at the first end 22 a of the vertical wall 21. The extending portion 25 is located on the upper side of the protruding portion 23 at the first end portion 22a. The extension part 25 is a plate-like protruding plate part. The upper surface of the extending portion 25 is a surface that is aligned with the upper surface 24 of the vertical wall 21 and is continuous. The extending portion 25 engages with a concave cutout portion 47 formed at a second end portion 42b of the lateral wall 41 described later. In the assembly frame body 4, the vertical wall 21 has the extending part 25 and the horizontal wall 41 has the notch part 47 so that the upper surface 24 of the vertical wall 21 and the upper surface 44 of the horizontal wall 41 are the same. Can be assembled on the surface.

  The pair of connection protrusions 28 protrudes from the second end 22 b of the vertical wall 21 in the extending direction of the vertical wall 21. The pair of connecting protrusions 28 have shaft accommodating holes 29 on the opposing surfaces. The pair of connection protrusions 28 are connected to a connection protrusion 48 formed on a first end 42 a of the lateral wall 41 (described later) via the connection member 10 to form a joint 60 (see FIG. 2).

  As shown in FIG. 3B, a plurality of rib structures 32 are formed on the first surface 31 of the vertical wall 21. The rib structure 32 includes a thin wall 33 and a recess 34 that is a recess surrounded by the thin wall 33. That is, the first surface 31 of the vertical wall 21 has a plurality of recesses 34 arranged at intervals in the longitudinal direction of the vertical wall 21.

  As shown in FIG. 3 (c), a thin concave portion 37 and a thin convex portion 38 for reinforcement are formed on the second surface 36 of the vertical wall 21 to form a rib structure like the first surface 31. 32 is not formed. That is, the second surface 36 of the vertical wall 21 has a shape different from that of the first surface 31. The thin concave portion 37 and the thin convex portion 38 are formed in such a direction and degree that they are not affected by freezing when the casing 1 is used in a cold region. In addition, you may form in the 2nd surface 36 in a smooth plane, without forming the recessed part 37 and the convex part 38. FIG.

  As shown in FIGS. 3A to 3C, when the vertical wall 21 and the horizontal wall 41, which will be described later, are folded, the first wall 31 and the second wall 36 of the vertical wall 21 are arranged at appropriate positions. A pair of recesses 88 in which the wall 21 and the lateral wall 41 can be engaged are formed. The recess 88 has a circular shape when the plate surface is viewed from the front. When the plate coupling body 9 is folded, the concave portion 88 is fitted with a convex portion 89 (see FIGS. 4A to 4C) of the lateral wall 41.

<Horizontal wall (second plate)>
As shown in FIG. 4A, the lateral wall (long side wall, second plate body) 41 is a long plate-like member.
A pair of connecting projections 48 are formed in the first end portion 42a in the longitudinal direction of the horizontal wall 41, and a hole penetrating in the plate thickness direction is formed in the second end portion 42b opposite to the first end portion 42a. A portion 46 is formed.

  The pair of connecting protrusions 48 protrude from the first end portion 42 a of the lateral wall 41 in the extending direction of the lateral wall 41. The pair of connecting protrusions 48 have shaft accommodating holes 49 on the opposing surfaces. The pair of connecting protrusions 48 are connected to the connecting protrusions 28 formed on the second end 22b of the vertical wall 21 via the connecting member 10 to form a joint 60 (see FIG. 2).

  The hole 46 penetrates in the plate thickness direction of the plate body at the second end 42 b of the lateral wall 41. In the present embodiment, two hole portions 46 are formed on the upper and lower sides. The protrusions 23 of the vertical wall 21 are inserted into the holes 46 and engaged. Thereby, a pair of board coupling body 9 is assembled, and the assembly frame 4 is hold | maintained in frame shape. Engagement between the protrusion 23 of the vertical wall 21 and the hole 46 of the horizontal wall 41 constitutes an engagement portion 30 (see FIG. 2).

  As shown in FIGS. 4B and 4C, the hole 46 has a wide portion 66 and a narrow portion 67 which are located one above the other and connected to each other. Make.

  The wide part 66 is formed wider in the horizontal direction than the tip part 63 of the protrusion 23. In addition, the dimension in the height direction of the wide portion 66 is larger than the height dimension than the protrusion 23. Therefore, the distal end portion 63 of the protrusion 23 can be inserted into the wide portion 66.

The narrow portion 67 is located below the wide portion 66 and is connected to the wide portion 66. The narrow portion 67 is formed in a shape that is cut out below the wide portion 66. The narrow portion 67 is wider in the horizontal direction than the neck portion 62 of the protrusion 23 and narrower in the horizontal direction than the tip portion 63. Therefore, by inserting the neck portion 62 from the wide portion 66 to the narrow portion 67, the tip portion 63 is caught by the tip portion 63 and is prevented from coming off.
As shown in FIG. 4C, when the horizontal wall 41 is viewed from the plate surface direction, the bulging portions 68 are provided on the left and right sides of the narrow portion 67. The bulging portion 68 protrudes from the inner surfaces of the left and right sides constituting the hole portion 46 toward the center side, and narrows the hole portion 46 to form a narrow portion 67. That is, the narrow portion 67 is located between the bulging portions 68 that are spaced apart from each other. The bulging portion 68 is formed with a dimension thinner than the plate thickness of the lateral wall 41. Therefore, the bulging portion 68 forms a recess 68a that is recessed in the thickness direction with respect to the first surface 51 and the second surface 56 of the lateral wall 41 as shown in FIG. 6B. Since the dimension of the bulging part 68 in the plate thickness direction is smaller than the length dimension of the protruding part 23 in the protruding direction of the neck part 62, the neck part 62 can be accommodated in the narrow part 67 between the bulging parts 68. In addition, the distal end portion 63 and the root portion 61 of the protrusion 23 can be accommodated in the recesses 68 a provided on both sides of the bulging portion 68 in the plate thickness direction.

  As shown in FIG. 4A, a concave notch 47 is formed by partially notching the upper surface 44 of the lateral wall 41 above the second end 42b forming the hole 46. As shown in FIG. The notch 47 engages with the extension 25 formed in the vertical wall 21. Thereby, as shown in FIG. 2, the upper surface 24 of the vertical wall 21 and the upper surface 44 of the horizontal wall 41 become a surface of the same height, and the upper frame 3 can be mounted.

  As shown in FIG. 4B, a plurality of rib structures 52 are formed on the first surface 51 of the horizontal wall 41 in the same manner as the vertical wall 21. The rib structure 52 includes a thin wall 53 and a recess 54 surrounded by the thin wall 53. That is, the first surface 51 of the lateral wall 41 has a plurality of recesses 54 that are arranged at intervals in the longitudinal direction of the lateral wall 41.

As shown in FIG. 4C, a thin concave portion 57 and a thin convex portion 58 for reinforcement are formed on the second surface 56 of the horizontal wall 41 in the same manner as the vertical wall 21, and the first surface 51 is formed. Such a rib structure 52 is not formed. That is, the second surface 56 of the lateral wall 41 has a shape different from that of the first surface 51. The thin concave portion 57 and the thin convex portion 58 are formed in a direction and a degree that are not affected by freezing when the housing 1 is used in a cold district. Note that the second surface 56 may be formed in a smooth plane without forming the concave portion 57 and the convex portion 58.
At appropriate positions of the first surface 51 and the second surface 56 of the horizontal wall 41, a convex portion 89 is formed that can be engaged with the vertical wall 21 and the horizontal wall 41 when the vertical wall 21 and the horizontal wall 41 described later are folded. To do.

  As shown in FIGS. 4A to 4C, a pair of convex portions 89 are formed on the first surface 51 and the second surface 56 of the lateral wall 41, respectively. The convex portion 89 has a circular shape when the plate surface is viewed from the front. The position of the convex portion 89 in the horizontal wall 41 in the height direction substantially coincides with the height direction position of the concave portion 88 in the vertical wall 21. Further, the distance from the first end portion 42 a of the convex portion 89 in the horizontal wall 41 substantially matches the distance from the second end portion 22 b of the concave portion 88 in the vertical wall 21. The convex portion 89 is fitted into the concave portion 88 (see FIGS. 3A to 3C) of the vertical wall 21 when the plate connector 9 is folded.

<Connection member (connection part)>
As shown in FIGS. 5A to 5C, the vertical wall 21 and the horizontal wall 41 described above are used as a plate coupling body 9 that can be rotated via the connection member 10. The connecting member 10 has a plate shape that fits between the opposing surfaces of the pair of connecting protrusions 28 of the vertical wall 21 and the opposing surfaces of the pair of connecting protrusions 48 of the lateral wall 41. As shown in FIG. 5A, the connecting member 10 has a pair of protruding and retracting shafts 20 on the upper surface and the lower surface, respectively. The pair of protrusion shafts 20 on the upper surface and the pair of protrusion shafts 20 on the lower surface are arranged coaxially with each other. The projecting shaft 20 enters a shaft receiving hole 29 provided in the connecting projection 28 of the vertical wall 21 and a shaft receiving hole 49 provided in the connecting protrusion 48 of the horizontal wall 41. The retracting shaft 20 is always pressed outward by an elastic member such as a spring provided inside the connection member 10. When the projecting shaft 20 of the connecting member 10 is pressed against the shaft accommodating hole 29 of the connecting projection 28 of the vertical wall 21, the projecting shaft 20 is pressed and recessed, and then protrudes in the shaft accommodating hole 29. Thereby, the vertical wall 21 and the connection member 10 can be connected. Similarly, by connecting the horizontal wall 41 and the connecting member 10, a plate connector 9 as shown in FIG. 5B is configured. The connection member 10 connected to the connection protrusions 28 and 48 functions as the joint portion 60 of the plate connection body 9.

  The plate coupling body 9 constitutes a pair of rotating shafts J corresponding to the projecting shafts 20 on the upper and lower surfaces of the connecting member 10. Of the pair of rotating shafts J, one rotating shaft J becomes a rotating shaft of the vertical wall 21 with respect to the connecting member 10, and the other rotating shaft J becomes a rotating shaft of the lateral wall 41 with respect to the connecting member 10. Therefore, the plate connector 9 can be folded in a U-shape with the vertical wall 21, the connecting member 10, and the horizontal wall 41. FIG. 5C shows an example in which the second surfaces 36 and 56 of the vertical wall 21 and the horizontal wall 41 are folded so as to face each other. FIG. 5D shows an example in which the first surfaces 31 and 51 of the vertical wall 21 and the horizontal wall 41 are folded to face each other. In this way, when the plate connector 9 is folded in a U-shape, the vertical wall 21 and the horizontal wall 41 engage the concave portion 88 of the vertical wall 21 and the convex portion 89 of the horizontal wall 41 so that the backlash in the folded state is reduced. Can be prevented.

  The connecting member 10 only needs to be able to rotatably connect the vertical wall 21 and the horizontal wall 41 constituting the plate connecting body 9, and is not a connection by the projecting shaft 20 and the shaft receiving holes 29 and 49, but a connection protrusion. A through hole may be formed in 28 and 48 and a through hole may also be formed in the connection member 10 to be fastened by a bolt and a nut or connected by a pin and a C ring.

<Connection structure (engagement part)>
Next, the details of the structure of the engaging portion 30 of the assembly frame 4 will be described.
The assembly frame 4 is configured by combining a pair of plate connectors 9. In the assembly frame body 4, the projection 23 of one plate coupling body 9 of the pair of plate coupling bodies 9 is inserted into the hole 46 of the other plate coupling body 9, and the projection 23 of the other plate coupling body 9 is inserted. It is inserted into the hole 46 of one of the plate connectors 9 to form a rectangular shape in plan view.

As shown in FIGS. 6A and 6B, in the engaging portion 30, the protruding portion 23 is inserted into and engaged with the hole 46. In the insertion, first, the protrusion 23 is inserted into the wide portion 66 (see FIG. 4B) of the hole 46. Since the protrusion 23 has a width in the horizontal direction that is narrower than the wide portion 66 over its entire length, it can be easily inserted into the wide portion 66. Next, the projection 23 is moved downward, and the neck 62 of the projection 23 is inserted into the narrow portion 67 of the hole 46 and accommodated. At the same time, the distal end portion 63 and the root portion 61 of the protrusion 23 are accommodated in the recess 68a (see FIG. 6B). The tip portion 63 and the root portion 61 having a width dimension larger than that of the narrow portion 67 constitutes the engaging portion 30 by locking the protruding portion 23 in the protruding direction.
In FIG. 6, an example in which the pair of plate connectors 9 is assembled with the first surface 31 of the vertical wall 21 and the first surface 51 of the horizontal wall 41 facing outward is illustrated. However, the pair of plate connectors 9 can be assembled even if the second surface 36 of the vertical wall 21 and the second surface 56 of the horizontal wall 41 face outward (see FIGS. 8A and 8B).

The two plate coupling bodies 9 constituting the assembly frame body 4 of the first embodiment have vertical walls having first surfaces (uneven surfaces) 31 and 51 and second surfaces (flat surfaces) 36 and 56, respectively. 21 and the lateral wall 41. The assembly frame 4 is used by assembling the plate coupling bodies 9 that combine the first surfaces 31 and 51 of the vertical wall 21 and the horizontal wall 41 and the second surfaces 36 and 56 with each other. In other words, the assembly frame 4 configured with the first surfaces 31 and 51 facing outward can be used for preventing settlement. In addition, the assembly frame body 4 configured with the second surfaces 36 and 56 facing outward can be used for cold districts.
That is, as shown in FIGS. 5C and 5D, the assembly frame body 4 rotates about 90 degrees around the joint portion 60 of the plate coupling body 9 and rotates the vertical wall 21 and the horizontal wall 41 respectively. With the first surfaces 31 and 51 or the second surfaces 36 and 56 facing outward, the projections 23 of the vertical walls 21 and the holes 46 of the horizontal walls 41 of the plate connectors 9 are engaged with each other. Thus, the assembly frame 4 is held in a frame shape. The assembly frame body 4 functions as a stable frame body by engaging with the assembly convex portion 8a of the bottom member 5. Further, the plate coupling body 9 can maintain the folded state of the plate coupling body 9 by the engagement of the convex portion 39 of the vertical wall 21 and the concave portion 88 and convex portion 89 of the horizontal wall 41.

<Usage example>
Next, a usage example of the housing 1 will be specifically described. The housing 1 can be used for preventing settlement or preventing freezing by changing the assembly configuration of the assembly frame 4.

(Prevents settlement)
As shown in FIGS. 1 and 2, the assembly frame 4 of the housing 1 used for preventing settlement is directed with the first surface 31 of the vertical wall 21 and the first surface 51 of the horizontal wall 41 facing outward. The plate connector 9 is assembled. Specifically, first, the joint portion 60 of the plate connector 9 is rotated so that the first surface 31 of the vertical wall 21 and the first surface 51 of the horizontal wall 41 face outward. That is, the connecting member 10 (joint portion 60) of the plate coupling body 9 is bent at a substantially right angle. Further, the protrusion 23 of one plate coupling body 9 is inserted into the hole 46 of the other plate coupling body 9 and engaged. Thereby, the vertical wall 21 and the horizontal wall 41 of a pair of board coupling body 9 engage, and the assembly frame body 4 is comprised. Further, the lid 2, the upper frame 3, and the bottom member 5 are assembled to the assembly frame body 4 with the first surface 31 of the vertical wall 21 and the first surface 51 of the horizontal wall 41 facing outside to prevent settlement. The housing 1 is configured.

  In the assembly frame body 4 of the housing 1 used for preventing settlement, the first surfaces 31 and 51 having the rib structures 32 and 52 face the outside of the housing 1 and become the outer surface of the assembly frame body 4. The thin walls 33 and 53 and the recesses 34 and 54 of the rib structures 32 and 52 come into contact with the ground in which the housing 1 is embedded over a wide area to prevent the housing 1 from sinking. That is, the casing 1 can prevent the sinking into the ground by increasing the contact area with the ground in which the casing 1 is buried by directing the rib structures 32 and 52 having a large surface area to the outside of the casing 1. .

(Anti-freezing prevention)
FIGS. 7A and 7B are an overall perspective view and an exploded view of the housing 1 when the housing 1 is used for a cold district. For cold regions, for example, water in a water meter accommodated in the housing 1 is prevented from freezing in an area where water is frozen in winter. Further, the term “for cold regions” refers to preventing the housing 1 from being lifted when frost heaving occurs in which water in the soil freezes due to cold in winter.

  As shown in FIGS. 7A and 7B, the assembly frame 4 of the housing 1 used for preventing frost heave is the second surface 36 of the vertical wall 21 of the plate connector 9 and the second of the horizontal wall 41. The assembly frame body 4 is assembled with the surface 56 facing the outside of the housing 1. Specifically, first, the joint portion 60 of the plate connector 9 is rotated so that the second surface 36 of the vertical wall 21 and the second surface 56 of the horizontal wall 41 face outward. That is, the connection member 10 (joint part 60) of the pair of plate coupling bodies 9 is bent at a substantially right angle. Further, the protrusion 23 of one plate coupling body 9 is inserted into the hole 46 of the other plate coupling body 9 and engaged. Thereby, the vertical wall 21 and the horizontal wall 41 of a pair of board coupling body 9 engage, and the assembly frame body 4 is comprised. Further, the lid 2, the upper frame 3, and the bottom member 5 are assembled to the assembly frame body 4 with the second surface 36 of the vertical wall 21 and the second surface 56 of the horizontal wall 41 facing outside to prevent freezing. The housing 1 is configured.

FIGS. 8A and 8B are a top view and a cross-sectional view showing a connection structure between a pair of plate connectors 9.
As shown in FIG. 8A, the assembly frame 4 when used for a cold district has the first surfaces 31 and 51 having rib structures 32 and 52 facing the inside of the assembly frame 4 so that the assembly frame 4 It becomes the inner surface of the body 4. Therefore, as shown in FIG. 8B, the recesses 34 and 54 of the rib structures 32 and 52 accommodate a heat insulating material 80 such as a foamed resin and hold the heat insulating material 80, for example. The heat insulating material 80 held by the rib structures 32, 52 covers at least the entire inner surface of the assembly frame 4, prevents the temperature drop in the housing 1 used for cold districts by the heat insulating effect of the heat insulating material 80, and Prevent the water in the water container to be frozen. The heat insulating material 80 covers the plurality of rib structures 32 and 52 as an integral structure. The heat insulating material 80 may be accommodated separately for each of the rib structures 32 and 52. However, if the heat insulating material 80 is an integral structure, the plurality of rib structures 32 and 52 are integrated over the thin wall 33. The insulation effect is even higher.

  The heat insulating material 80 can be accommodated at an appropriate time before or after the assembly frame 4 is assembled. As the heat insulating material 80, urethane foam, phenol foam, polystyrene foam, foam heat insulating materials such as beaded polystyrene and foam rubber, fiber heat insulating materials such as rock wool and glass wool, airgel, and the like are appropriately used. Further, as shown in FIG. 8B, the heat insulating material 80 may be formed as an integral structure to cover the plurality of rib structures 32 and 52. The integrally structured heat insulating material 80 blocks the gap between the vertical wall 21 and the horizontal wall 41 forming the assembly frame body 4, and can effectively prevent a temperature drop in the housing 1. That is, the integrally structured heat insulating material 80 has a higher heat insulating effect because it integrally closes the plurality of rib structures 32 and 52 beyond the thin wall 33. Moreover, the heat insulating material 80 of integral structure can be attached only by fitting in the recessed parts 34 and 54 of the rib structures 32 and 52, and its effectiveness is good. As described above, the assembly frame body 4 in which the first surfaces 31 and 51 having the rib structures 32 and 52 face the inside of the assembly frame body 4 allows the housing 1 to be cooled in the cold district by the heat insulating material 80 provided in the rib structures 32 and 52. Can be used for

(Lamination of assembly frames)
FIG. 9 is an exploded view of the casing 1 showing an example in which the casing 1 is configured by stacking the assembly frame bodies 4 in two stages. As shown in FIG. 9, the housing 1 can be adjusted in height by stacking a plurality of assembly frames 4. Thereby, the height of the housing | casing 1 can be adjusted according to the height dimension and installation location of an underground structure accommodated in the housing | casing 1. FIG. In particular, when the housing 1 is used for a cold region, it is preferable to embed the housing 1 at a position deeper than the depth at which the housing 1 is buried in an area where the temperature change is small. This is because the temperature change at a deep position from the ground surface is smaller than that on the ground surface. The casing 1 can be embedded deeply by stacking and embedding the assembly frame body 4 in a plurality of stages (for example, two stages) in the vertical direction. When the assembly frame 4 is used for preventing freezing, a plurality of the assembly frames 4 can be integrally closed by adopting a heat insulating material 80 that can integrally insulate the plurality of assembly frames 4. Higher thermal insulation effect.

  As shown in FIG. 9, a plurality of assembly projections 7a and assembly recesses 13b are formed on the upper end surface of the plate connector 9 constituting the assembly frame 4, and the assembly recess 8b and assembly projections are formed on the lower end surface. A plurality of 13a are formed. In the plate coupling body 9, the assembly convex part 7a and the assembly concave part 8b are provided at a position where they overlap each other in plan view. Similarly, in the plate coupling body 9, the assembly concave portion 13b and the assembly convex portion 13a are provided at positions overlapping each other in plan view. By laminating the assembly frame body 4, the assembly convex portion 7a and the assembly concave portion 8b are fitted, and the assembly concave portion 13b and the assembly convex portion 13a are fitted. Thereby, the assembly frame bodies 4 can be laminated | stacked so that it can remove and the assembly frame bodies 4 do not shift | deviate. An assembly recess 7 b corresponding to the assembly protrusion 7 a is provided on the lower surface of the upper frame 3, and an assembly recess 13 c corresponding to the assembly protrusion 13 a and an assembly protrusion corresponding to the assembly recess 8 b are provided on the upper end surface of the bottom member 5. And a portion 8a.

  The assembly frame 4 is provided with a function of preventing misconfiguration so that the orientation of the first surfaces 31 and 51 and the second surfaces 36 and 56 of the vertical wall 21 and the horizontal wall 41 is not mistaken when stacked in two or more stages. . Specifically, in the plate coupling body 9 of the assembly frame body 4, the assembly protrusion 13 a functions as a misassembly prevention protrusion, and the assembly recess 13 b functions as an assembly prevention hole. The combination prevention protrusion (assembly protrusion) 13a and the combination prevention hole (assembly depression) 13b are arranged asymmetrically with respect to the center of the horizontal wall 41 in the extending direction. That is, the assembly frame 4 cannot be assembled unless the upper and lower assembly frames 4 are in the same direction when stacked in a plurality of stages in the vertical direction. For this reason, the assembly frame body 4 does not mistake the direction of the assembly frame bodies 4 even when stacked in a plurality of stages in the vertical direction.

Similarly, the assembly concave portion 13c on the upper end surface of the bottom member 5 aligns the second surfaces 36 and 56 with the two positions that match the combination prevention protrusions 13a of the assembly frame 4 that aligns the first surfaces 31 and 51. The assembly frame body 4 is formed at a total of four locations including the two locations that match the combination prevention protrusions 13a. Thereby, the upper frame 3 and the bottom member 5 can be assembled regardless of whether the assembly frame 4 is aligned with the first surfaces 31 and 51 or the second surfaces 36 and 56.
Note that the combination prevention protrusion 13 a may be provided on the upper end surface of the assembly frame body 4, and the combination prevention hole 13 b may be provided on the lower end surface of the assembly frame body 4. In that case, an assembly recess 13 d is formed on the lower surface of the upper frame 3.

<Effect>
In the case 1 of the present embodiment, the vertical wall 21 is formed with the projection 23 at the first end 22a, and the horizontal wall 41 is formed with the hole 46 at the second end 42b. The protrusion 23 has a root portion 61, a neck portion 62, and a tip portion 63, and the hole portion 46 has a wide portion 66, a narrow portion 67, and a bulging portion 68. The vertical wall 21 has a connection protrusion 28 at the second end 22b, and the horizontal wall 41 has a connection protrusion 48 at the first end 42a. The plate connector 9 is configured by connecting the connection protrusion 28 of the vertical wall 21 and the connection protrusion 48 of the horizontal wall 41 by the connecting member 10. The assembly frame 4 is configured by assembling the plate connectors 9 together. For this reason, the housing | casing 1 of this embodiment can exhibit the desired performance by aligning the direction of the vertical wall 21 or the horizontal wall 41. FIG.
Moreover, since the assembly frame body 4 of this embodiment is comprised by the board coupling body 9 which combines the vertical wall 21 and the horizontal wall 41, since the engagement part 30 required for the assembly of the assembly frame body 4 is two places. Assembly work is easy.

  The housing 1 constitutes the assembly frame body 4 by the vertical wall 21 and the horizontal wall 41 connected by the joint portion 60. For this reason, the housing 1 has the first surfaces 31 and 51 or the second surfaces 36 of the vertical wall 21 and the horizontal wall 41 constituting the assembly frame 4 according to the purpose of use for preventing settlement and preventing freezing. , 56 can be assembled facing outward. The housing 1 constitutes the assembly frame body 4 by combining the plate connector 9 having the joint portion 60. For this reason, the vertical wall 21 and the horizontal wall 41 can be easily assembled by aligning the first surfaces 31 and 51 or the second surfaces 36 and 56 with each other. In other words, the housing 1 can be assembled with one of the first surfaces 31, 51 or the second surfaces 36, 56 of the vertical wall 21 and the horizontal wall 41 of the assembly frame 4 aligned without any mistakes. Multiple functions can be reliably demonstrated according to the application such as for cold districts.

  The heat insulating material 80 accommodated in the recesses 34 and 54 of the rib structures 32 and 52 prevents a temperature drop in the housing 1, and in the case where the underground structure portion accommodated in the housing 1 is a water meter. Can prevent water from freezing. Moreover, since the housing | casing 1 accommodates the heat insulating material 80 using the space of the recessed parts 34 and 54 of the rib structures 32 and 52, it does not protrude in the housing | casing 1, but does not narrow the space in the housing | casing 1. . That is, the heat insulating material 80 accommodated in the recesses 34 and 54 of the rib structures 32 and 52 does not interfere with the work in the housing 1.

  The housing 1 of the present embodiment is constructed as an assembly type. In particular, the vertical wall 21 and the horizontal wall 41 constituting the assembly frame body 4 form an integrated plate coupling body 9 by the joint portion 60. For this reason, it can be stored as a small part, and the storage space can be small. Further, the plate connector 9 can be folded on both sides by the joint portion 60 so that the first surfaces 31 and 51 or the second surfaces 36 and 56 of the vertical wall 21 and the horizontal wall 41 face each other. For this reason, the board coupling body 9 which comprises the housing | casing 1 can be folded compactly, and is easy to carry and store. In addition, the plate connector 9 is folded in such a manner that the first surfaces 31, 51 or the second surfaces 36, 56 of the vertical wall 21 and the horizontal wall 41 are opposed to each other. The part 89 can be engaged. For this reason, when conveying the board | substrate coupling body 9, the board coupling body 9 does not open carelessly and handling is easy. That is, the housing 1 can be transported in the state of a compact part in a disassembled state. For this reason, more parts can be transported in the space for transporting the conventional integrated housing, and the transportation cost can be reduced.

  Although the case 1 of this embodiment demonstrated the example which accommodates structures, such as a water and sewage which installs the case 1 in the ground, a measuring instrument for electric power and telecommunication, and a valve body, others may be used. For example, the housing 1 can also be used when storing and transporting articles. When the article is stored and transported, the housing 1 assembled so that the first surfaces 31 and 51 having the rib structures 32 and 52 of the assembly frame 4 face the outside has the rib structures 32 and 52 facing the outside. You can carry it with your hands on.

  Further, when storing and transporting an article, the casing 1 assembled so that the first surfaces 31 and 51 having the rib structures 32 and 52 of the assembly frame 4 face the inside is provided with a heat insulating material on the rib structures 32 and 52. 80 is held and accommodated. For this reason, since the housing | casing 1 has heat insulation, the thing which needs temperature management, such as frozen food, can be conveyed. Moreover, the capacity | capacitance of the housing | casing 1 can be adjusted if the heat insulating material 80 accommodated in the rib structures 32 and 52 is replaced | exchanged for the heat insulating material 80 from which thickness differs. Further, if the integrally formed heat insulating material 80 is accommodated across the plurality of rib structures 32 and 52, the plurality of rib structures 32 are integrally closed beyond the thin wall 33, so that the heat insulating effect is higher.

  Moreover, the housing 1 can change the height of the housing 1 by stacking a plurality of assembly frame bodies 4 in the vertical direction in accordance with the object to be transported (see FIG. 6). And when conveying the thing which needs temperature management, such as frozen food, if the heat insulating material 80 of the integral structure which can insulate the multi-stage assembly frame 4 integrally is used, the multi-stage assembly frame 4 will be integrated. The insulation effect is high. When the article is stored inside and transported, a rib structure is also formed inside the lid 2, the upper frame 3 and the bottom member 5 of the housing 1, and a heat insulating material is provided on the rib structure. Also good. Further, when the casing 1 is used for transportation, the upper side of the assembly frame body 4 may be closed without using the lid body 2 or the upper frame 3, or the upper surface of the assembly frame body 4 may be left open. good. Moreover, when using the housing | casing 1 for conveyance, you may make it easy to attach a wheel to the bottom member 5, and to move.

  In the first embodiment, the protrusion 23 is formed at the first end 22 a of the vertical wall 21, and the hole 46 is formed at the second end 42 b of the horizontal wall 41. For example, the connecting projection 28 is formed on the first end 22 a of the vertical wall 21, the projection 23 is formed on the second end 22 b, and the hole 46 is formed on the first end 42 a of the lateral wall 41. A connecting projection 48 may be formed on the end portion 42b of this.

<Modification 1>
Next, the lateral wall 141 of Modification 1 in which the guide rib 169 that is a pressing portion is formed on the engaging portion 30 will be described with reference to FIG.
FIG. 10A is a front view of the horizontal wall 141 of the first modification, and FIG. 10B is a cross-sectional view. In addition, about the component of the same aspect as the above-mentioned embodiment, the same code | symbol is attached | subjected and the description is abbreviate | omitted.

  As shown in FIG. 10A, the hole 146 of the horizontal wall 141 has a wide portion 66 and a narrow portion 67, as in the above-described embodiment. Further, when the horizontal wall 141 is viewed from the plate surface direction, the bulging portions 168A and 168B are provided on the left and right sides of the narrow portion 67. Here, of the pair of bulging portions 168A and 168B, the bulging portion located on the outer side in the extending direction (longitudinal direction) of the lateral wall 141 is referred to as the outer bulging portion 168B, and the bulging portion located on the inner side is referred to as the inner bulging portion. This is called the exit 168A. On the inner surface of the hole 146 (more specifically, the narrow portion 67) and on the side surface of the outer bulging portion 168B, a guide rib (pressing) that protrudes toward the horizontal center of the hole 146 (narrow portion 67) Part) 169. The guide rib 169 is inclined toward the bottom (back) of the narrow portion 67 starting from the wide portion 66 side. That is, the guide rib 169 is formed in an inclined shape in the outer bulging portion 168B so as to gradually approach the inner bulging portion 168A from the upper end toward the lower end.

  As shown in FIG. 10 (b), when the plurality of protrusions 23 of the vertical wall 21 are inserted into the wide portions 66 of the plurality of holes 146 of the horizontal wall 141 and then pressed to the lower narrow portion 67, the protrusions 23 neck part 62 fits into narrow part 67, and vertical wall 21 and horizontal wall 141 are engaged. At this time, the guide rib 169 presses the neck portion 62 of the projection 23 toward the center of the lateral wall 141, and firmly holds the neck portion 62 between the guide rib 169 and the inner bulging portion 168A. In addition, since the guide rib 169 is provided in the outer bulging portion 168B, the guide rib 169 presses the neck portion 62 in a direction to reduce the gap inside the assembly frame body 4 constituted by the vertical wall 21 and the horizontal wall 141. To do. That is, the housing 1 provided with the guide rib 169 can strengthen the engagement of the engaging portion 30, reduce the gap between the assembly frames 4, and improve the sealing performance of the housing 1.

  When the housing 1 having the guide rib 169 is used for preventing settlement, the engaging portion of the assembly frame 4 that faces the first surface 31 of the vertical wall 21 and the first surface 51 of the horizontal wall 141 outward. Intrusion of earth and sand into the housing 1 from 30 can be effectively prevented. Further, when the housing 1 is used for a cold district (for preventing freezing), the assembly frame body 4 with the second surface 36 of the vertical wall 21 and the second surface 56 of the horizontal wall 141 facing outward is used. Intrusion of cold air from the joint portion 30 into the housing 1 can be effectively prevented. And the housing | casing 1 provided with the guide rib 169 can prevent the inside of the housing | casing 1 freezing effectively combined with the heat insulation effect by the heat insulating material 80. FIG.

<Modification 2>
Next, the vertical wall 221 and the horizontal wall 241 of the modified example 2 in which the disengagement prevention portions 271 and 276 as the disengagement prevention portions (displacement prevention portions) are further formed in the engagement portion 30 that forms the guide rib 169 are shown in FIGS. 12 will be described.
FIG. 11A is a perspective view of the second end portion 42b of the horizontal wall 241, and FIG. 11B is a cross-sectional view. FIG.11 (c) is a perspective view of the 1st edge part 22a of the vertical wall 221, FIG.11 (d) is a front view. 12A and 12B are cross-sectional views of the engaging portion 30 between the horizontal wall 241 and the vertical wall 221. FIG. In addition, about the component of the same aspect as the above-mentioned embodiment, the same code | symbol is attached | subjected and the description is abbreviate | omitted.

  As shown in FIGS. 11A and 11B, the hole 246 of the horizontal wall 241 has a wide portion 66 and a narrow portion 67, as in the above-described embodiment. Further, when the horizontal wall 241 is viewed from the plate surface direction, the bulging portions 268 are provided on the left and right sides of the narrow portion 67, respectively. A second detachment preventing portion 276 is formed on the bulging portion 268. The second detachment preventing portion 276 is a pair of convex portions that project to both sides of the lateral wall 241 of each bulging portion 268 in the plate thickness direction. In other words, the second detachment preventing portion 276 is formed at a total of four locations including two locations on the first surface 31 side and two locations on the second surface side of one hole portion 246. The second detachment preventing portion 276 forms a second facing surface 276a facing downward.

As shown in FIGS. 11C and 11D, the protrusion 223 of the vertical wall 221 has a tip 263, a neck 262, and a tip 263 having different widths in the thickness direction from the tip, as in the above-described embodiment. A root portion 261. The distal end portion 263 has a rear surface 263a on the base side. The rear surface 263a faces the root portion 261. A first detachment preventing portion 271 is formed on the rear surface 263a. The first detachment preventing portion 271 is a convex portion extending from the distal end portion 263 toward the root side. The first detachment preventing portion 271 has a first facing surface 271a facing upward.
The vertical wall 221 is formed with a notch recess 272 formed by notching a part of the root portion 261 located on the end face on the proximal end side of the protrusion 223.

As shown in FIG. 12 (a), when the plurality of protrusions 223 of the vertical wall 221 are inserted into the wide portions 66 of the plurality of holes 246 of the horizontal wall 241, and then pressed to the narrow portion 67 on the lower side, The neck portion 262 of the protrusion 223 of 221 enters the narrow portion 67 in the hole 246 of the horizontal wall 241, and the vertical wall 221 and the horizontal wall 241 are engaged.
Then, as shown in FIG. 12B, the first detachment preventing portion 271 of the protrusion 223 gets over the second detachment preventing portion 276 of the hole 246. The first disengagement prevention portion 271 and the second disengagement prevention portion 276 are such that the first facing surface 271a and the second facing surface 276a face each other in the vertical direction with the protrusion 223 inserted into the hole 246. Match. Thereby, the first detachment preventing portion 271 and the second detachment preventing portion 276 reinforce the engagement of the engagement portion 30.
In addition, the second detachment preventing portion 276 located inside the assembly frame 4 is accommodated in a notch recess 272 formed in the first surface 31 and the second surface 36 of the vertical wall 221. That is, the notch recess 272 accommodates the second detachment preventing portion 276 that does not engage with the first detachment preventing portion 271 when the assembly frame body 4 is assembled. The notch recess 272 functions to smoothly guide the protrusion 223 to the hole 246 when the protrusion 223 and the hole 246 are engaged.

  The second detachment preventing portion 276 protrudes on both sides in the plate thickness direction around the hole portion 246 of the lateral wall 241. For this reason, even when the protruding portion 223 of the vertical wall 221 is inserted from either the first surface 51 or the second surface 56 of the horizontal wall 241, it can be engaged with the first detachment preventing portion 271. The vertical wall 221 is formed with a notch recess 272 that accommodates the other of the pair of second detachment prevention portions 276 that does not engage with the first detachment prevention portion 271. For this reason, the other detachment prevention portion 276 that does not engage with the first detachment prevention portion 271 does not hinder the engagement between the projection 223 and the hole portion 246.

  According to this modification, the first detachment preventing portion 271 and the second detachment preventing portion 276 firmly connect the engaging portion 30 of the assembly frame body 4, for example, sink or float on the housing 1. When this force is applied, disengagement of the engagement portion 30 (that is, disengagement between the projection 223 and the hole 246) is prevented. Further, the first detachment preventing portion 271 and the second detachment preventing portion 276 are engaged on the outside of the assembly frame body 4. The engagement between the first detachment prevention portion 271 and the second detachment prevention portion 276 prevents the engagement displacement between the vertical wall 221 and the horizontal wall 241 by pressing the engagement portion 30 of the assembly frame 4 from the outside. To do. Further, the engagement between the first detachment preventing portion 271 and the second detachment preventing portion 276 reduces the gap inside the assembly frame 4 constituted by the vertical wall 221 and the horizontal wall 241. That is, since the housing 1 can strengthen the engagement of the engaging portion 30 and reduce the gap between the assembly frames 4, the sealing performance of the housing 1 is improved. For this reason, when the housing 1 including the vertical wall 221 and the horizontal wall 241 according to the present modification is used for preventing settlement, intrusion of earth and sand can be prevented more effectively and used for cold districts (for preventing freezing). In this case, the intrusion of cold air can be effectively prevented.

<Modification 3>
Next, a vertical wall 321 according to Modification 3 in which a notch groove 373 is further formed in the engaging portion 30 that forms the disengagement preventing portions 271 and 276 will be described with reference to FIGS.
FIG. 13 is a front view of the first end 22 a of the vertical wall 321. FIGS. 14A and 14B are cross-sectional views of the engaging portion 30 between the horizontal wall 241 and the vertical wall 321, and FIG. 14C is an enlarged view of a region C in FIG. 14B. . In addition, about the component of the same aspect as the above-mentioned embodiment, the same code | symbol is attached | subjected and the description is abbreviate | omitted. In this modification, the horizontal wall 241 that engages with the vertical wall 321 has the same configuration as the horizontal wall 241 of the above-described modification 2.

  As shown in FIG. 13, the protruding portion 323 of the vertical wall 321 includes a tip portion 363, a neck portion 362, and a root portion 361 having different widths in the plate thickness direction from the tip side, as in the above-described embodiment. . In addition, a first detachment preventing portion 271 is formed at the distal end portion 363 of the protruding portion 323. The first detachment preventing portion 271 engages with the second detachment preventing portion 276 of the lateral wall 241 as in the second modification.

  A cutout groove 373 that is a concave portion that opens downward is formed in the neck 362 of the protrusion 323. The notch groove 373 is formed by notching a part of the lower side of the neck 362 of the protrusion 323. The notch groove 373 imparts an elastic force that makes the protrusion 323 easily elastically deform when the first detachment preventing portion 271 contacts the second detachment preventing portion 276. That is, the protruding portion 323 is elastically deformed by the notch groove 373 when the first detachment preventing portion 271 and the second detachment preventing portion 276 come into contact with each other.

  As shown in FIG. 14A, the assembly frame body 4 provided with the notch groove 373 presses the lower narrow portion 67 after inserting the protrusion 323 into the wide portion 66 of the hole 246. At this time, the protrusion 323 is elastically deformed by the notch groove 373 formed in the neck 362 of the protrusion 323. That is, the protruding portion 323 is elastically deformed so that the notch groove 373 is expanded when the first detachment preventing portion 271 and the second detachment preventing portion 276 come into contact with each other. For this reason, the protrusion 323 smoothly enters the narrow portion 67 of the hole 246, and the engagement portion 30 as shown in FIG.

  According to the cutout groove 373 of this modification, the elastic deformation of the protrusion 323 can be easily performed when the first disengagement prevention part 271 and the second disengagement prevention part 276 are engaged with the outer peripheral surface of the protrusion 323. it can. In other words, the notch groove 373 can smoothly connect the protrusion 323 and the hole 246 when the assembly frame 4 is assembled. Further, even when the assembly frame 4 provided with the notch groove 373 is disassembled, the protrusion 323 easily elastically deforms when the first detachment preventing portion 271 and the second detachment preventing portion 276 come into contact with each other. For this reason, the projection part 323 and the hole part 246 can be released smoothly, and the assembly frame body 4 can be easily disassembled.

Further, as shown in FIG. 14C, the first detachment preventing portion 271 has a convex portion having a lower inclined surface 271b facing downward and an upper inclined surface (first opposing surface) 271a facing upward. It is.
The lower inclined surface 271 b comes into contact with the second detachment preventing portion 276 when the neck portion 362 of the protruding portion 323 is inserted into the narrow portion 67 of the hole portion 246. By forming the lower inclined surface 271b, the first detachment preventing portion 271 smoothly rides on the second detachment preventing portion 276, and the protrusion 323 can be easily inserted into the narrow portion 67.
On the other hand, the upper inclined surface 271a abuts on the second detachment preventing portion 276 when the neck portion 362 of the protruding portion 323 is removed from the narrow portion 67 of the hole portion 246. By forming the upper inclined surface 271a, the first detachment preventing portion 271 smoothly rides on the second detachment preventing portion 276, and the protrusion 323 can be easily removed from the narrow portion 67.

  The upper inclined surface 271a is inclined at an elevation angle of an inclination angle α with respect to the horizontal plane. The lower inclined surface 271b is inclined at a depression angle β with respect to the horizontal plane. The inclination angle β of the lower inclined surface 271b is larger than the inclination angle α of the upper inclined surface 271a. Since the lower inclined surface 271b contacts the second detachment preventing portion 276 when the protruding portion 323 is inserted, the force required for insertion can be reduced by increasing the inclination angle β. On the other hand, since the upper inclined surface 271a contacts the second detachment preventing portion 276 when the projection 323 is removed, the detachment preventing function of the first detachment preventing portion 271 is reduced when the inclination angle α is excessively increased. By setting the inclination angle β to an inclination larger than the inclination angle α, the force required for insertion of the protrusion 323 can be made smaller than the force required for removal, and the first disengagement prevention portion 271 can be easily assembled. Sufficient anti-separation function can be provided.

  Similarly, the second detachment preventing portion 276 has an upper inclined surface 276b facing upward and a lower inclined surface (second opposing surface) 276a facing downward. By providing the upper inclined surface 276b, the protrusion 323 can be easily inserted. Further, by providing the lower inclined surface 276a, the protrusion 323 can be easily removed.

The upper inclined surface 276b of the second detachment preventing portion 276 is preferably inclined at the same inclination angle β as the lower inclined surface 271b of the first detachment preventing portion 271. Accordingly, when the protrusion 323 is inserted, the upper inclined surface 276b and the lower inclined surface 271b can smoothly slide to engage the second disengagement preventing portion 276 and the first disengagement preventing portion 271.
The lower inclined surface 276a of the second detachment preventing portion 276 is preferably inclined at the same inclination angle α as the upper inclined surface 271a of the first detachment preventing portion 271. As a result, when the protruding portion 323 is removed, the lower inclined surface 276a and the upper inclined surface 271a slide and can be smoothly disengaged.

  Here, the upper inclined surface 276b of the second detachment preventing portion 276 and the lower inclined surface 271b of the first detachment preventing portion 271 have the same inclination angle, and the lower inclined surface of the second detachment preventing portion 276. 276a and the upper inclined surface 271a of the first detachment preventing portion 271 have the same inclination angle, but may be other. For example, when the inclination angle α of the upper inclined surface 271a and the inclination angle β of the lower inclined surface 271b of the first detachment preventing portion 271 are set to substantially the same inclination angle (α = β), the second detachment prevention is performed. The lower inclined surface 276a of the portion 276 is formed at an inclination angle that coincides with the inclination angle α (= β). As described above, even if the inclined surfaces of the first detachment prevention part 271 and the second detachment prevention part 276 are set, the first detachment prevention part 271 and the second detachment prevention part 276 have a contact area. Can slide smoothly and engage smoothly. Further, the engagement between the first detachment preventing portion 271 and the second detachment preventing portion 276 is not inadvertently disengaged. When necessary, the engagement between the projection 323 and the hole 246 can be released.

  When the housing 1 is frequently assembled and disassembled, the lower inclined surface 271b of the first detachment preventing portion 271 and the upper inclined surface of the second detachment preventing portion 276 so as to be easily engaged. The inclination of 276b is different, and the inclination of the upper inclined surface 271a of the first detachment preventing portion 271 and the inclination of the lower inclined surface 276a of the second detachment preventing portion 276 are different to facilitate disengagement. Also good.

<Summary>
The invention included in the embodiment will be described below.
The casing of the present embodiment is a casing in which the side wall of the casing is configured by a rectangular first plate and a second plate each having a first surface and a second surface on the front and back. And a pair of plate coupling bodies that rotatably couple the end portions of the first plate body and the second plate body by the connection portion, the first plate body from the end surface opposite to the connection portion. A projection that protrudes in the extending direction of the plate body, and the second plate body has a hole that penetrates in the thickness direction of the second plate body at the end opposite to the connection portion, and is connected The plate body is formed by inserting one projection portion of the pair of plate coupling bodies into the other hole portion, inserting the other projection portion into the one hole portion, and selecting one of the first surface and the second surface. A side wall having a rectangular shape in plan view is formed by selectively selecting one of the inner surface and the outer surface.
According to this configuration, when the side wall is assembled, the casing selects the back side or the front side and rotates the plate coupling body to assemble the plate coupling body to form the side wall. For this reason, the front and back of a 1st board and a 2nd board can be reversed, a side wall can be comprised, and the surface shape of the outer surface and inner surface of a side wall can be changed. Moreover, a side wall can be easily assembled by inserting the projection part of a pair of board coupling body in a hole.

Moreover, in said housing | casing, a board coupling body can be folded facing the 1st surface or 2nd surface of a 1st board and a 2nd board with a connection part as a fulcrum. .
According to this configuration, the plate coupling body can be folded so that the first surfaces or the second surfaces can face each other, and the space for transporting and storing the parts constituting the housing can be minimized and transported and stored. Sometimes does not take up space.

Further, in the case described above, the protruding portion includes a tip portion and a neck portion that is located on the base side from the tip portion and narrower in the plate thickness direction than the tip portion, and the hole portion is wider in the horizontal direction than the tip portion. The wide portion and the wide portion below the wide portion are connected to the wide portion and have a narrow portion that is wider in the horizontal direction than the neck portion and narrower in the horizontal direction than the tip portion, and the neck portion fits into the narrow portion.
According to this configuration, the protrusion and the tip can be engaged to form a firmly fixed side wall.

In the case described above, the first plate has a first detachment preventing portion that forms a first facing surface facing upward on the protrusion, and the second plate has a periphery of the hole. And a second disengagement preventive portion that forms a second facing surface facing downward, and the first disengagement preventive portion and the second disengagement preventive portion are arranged in a state where the protrusion is inserted into the hole portion. The first facing surface and the second facing surface are engaged in the up-down direction.
According to this structure, the 1st detachment prevention part and the 2nd detachment prevention part engage, and the side wall fixed firmly can be comprised. Further, the first disengagement preventing portion and the second disengagement preventing portion can be engaged to prevent inadvertent release of the assembly frame body.

Further, in the above housing, the first detachment prevention portion is a convex portion that extends from the tip end portion of the projection portion toward the root side, and the second detachment prevention portion is the first detachment prevention portion. A pair of convex portions projecting on both sides in the plate thickness direction of the second plate body, and the first detachment preventing portion is engaged with one of the pair of convex portions of the second detachment preventing portion, and the first plate The body is formed with a notch recess that accommodates the other of the pair of convex portions of the second detachment preventing portion on the end face on the base side of the protruding portion.
According to this configuration, the second detachment preventing portion is formed on both sides in the plate thickness direction of the second plate body, so that the protruding portion can be inserted into the hole portion from any surface of the second plate body. The first detachment prevention part and the second detachment prevention part can be engaged. Further, the notch recess accommodates the second detachment preventing portion that does not engage with the first detachment prevention portion, and the second detachment prevention portion that does not engage with the first detachment prevention portion inhibits the engagement. There is no.

In the case described above, a cutout groove that facilitates elastic deformation of the protrusion when the first disengagement prevention part and the second disengagement prevention part are engaged is provided on the outer peripheral surface of the protrusion.
According to this configuration, since the protrusion is easily deformed, the assembly frame body can be easily assembled.

In the case described above, the first detachment prevention portion is a convex portion having a lower inclined surface facing downward and an upper inclined surface facing the upper side as the first opposing surface, and the lower inclined surface. Comes into contact with the second detachment preventing portion when the neck portion of the projection portion is inserted into the narrow portion of the hole portion, and the second inclined surface is removed when the upper inclined surface pulls out the neck portion of the projection portion from the narrow portion of the hole portion. Abuts against the detachment prevention part.
According to this configuration, it is possible to supply a housing that is easy to assemble and that can prevent inadvertent disengagement even when the inner and outer sides of the assembly frame are aligned.

In the case described above, a pressing portion that protrudes toward the center in the horizontal direction of the hole and presses the protrusion is formed on the inner surface of the hole.
According to this configuration, it is possible to supply a casing with improved sealing performance by strengthening the connection of the connecting portion by the pressing portion.

In the case described above, the first surface and the second surface of the first plate and the second plate have different surface shapes.
In the case described above, a rib structure capable of holding a heat insulating material is formed on the first surface of the first plate and the second plate.
According to these structures, the surface shape of the outer surface and inner surface of a side wall can be changed. In addition, according to the purpose of prevention of settlement, for cold districts, for cold storage, etc., the assembly frame can be assembled without making mistakes, preventing the housing from sinking, preventing levitation during freezing, keeping the interior warm, Desirable performance such as heat insulation for use and cold insulation can be exhibited.

Further, in the above housing, an assembly convex portion that protrudes in the vertical direction is provided on one of the upper end surface and the lower end surface of the plate connector, and the other is a position that overlaps with the assembly convex portion in plan view. The assembly concave portion is provided, and the plate coupling body is stacked in the vertical direction and the assembly convex portion is fitted into the assembly concave portion.
According to this configuration, when the casing is used for a cold region, the casing can be embedded at a deep position where the temperature change is small. In this case, if the heat insulating material used for the assembly frame body that is stacked and assembled is an integrated structure that can insulate the multi-stage assembly frame body integrally, the multi-stage assembly frame body can be integrally closed, and the heat insulation effect can be obtained. high. Moreover, when using a housing | casing for conveyance, the magnitude | size of a housing | casing can be changed only by stacking an assembly frame body according to the thing to accommodate.

Further, in the above housing, the assembly convex portion and the assembly concave portion are provided on one or both of the first plate body and the second plate body, with respect to the extending direction center of the plate body. Arranged asymmetrically.
According to this configuration, the front and back surfaces of the first plate or the second plate stacked in the vertical direction are not mixed.

The housing further includes a bottom member positioned on a lower side and an openable / closable lid positioned on an upper side with respect to a rectangular side wall formed by combining a pair of plate coupling bodies. .
According to this configuration, the assembly frame body, the bottom member, and the lid body can be changed according to the number of water and sewerage systems, electric power and telecommunication measuring instruments, valve bodies, and the like installed in the housing. For this reason, the housing can share the parts and can effectively use the space without taking a place during storage or transportation.

In addition, the housing includes a side plate having a hole for a tube through which a pipe material penetrating the inside and outside of the housing is inserted, and a plurality of types of side plates having different sizes or numbers of the hole for the tube are prepared. The portion is provided with a notch-shaped fitting opening that opens upward or downward, and any one of a plurality of types of side plates is selected and fitted into the fitting opening.
According to this configuration, the housing can change the number of insertion portions only by exchanging the side plates, and can easily cope with a change in the number of underground structures such as water meters accommodated in the housing.

  Although various embodiments of the present invention have been described above, each configuration in each embodiment and combinations thereof are examples, and addition, omission, replacement, and configuration of configurations are within the scope without departing from the spirit of the present invention. Other changes are possible. Further, the present invention is not limited by the embodiment.

  INDUSTRIAL APPLICATION This invention can be utilized for the housing | casing which accommodates structures, such as a water and sewage installed in the ground, a measuring instrument for electric power, and telecommunications, and a valve body inside, or a housing | casing and conveying articles | goods.

DESCRIPTION OF SYMBOLS 1 ... Housing | casing, 2 ... Cover body, 3 ... Upper side frame, 4 ... Assembly frame body (side wall), 5 ... Bottom member, 7a, 8a ... Assembly convex part 7b, 8b, 13c, 13d ... Assembly concave part, 9 ... Plate Connecting body, 10... Connecting member (connecting portion), 11... Concave portion, 12... Convex portion, 13 a .. assembly convex portion (protrusion prevention projection), 13 b. ... pipe hole, 19 ... side plate, 21, 221, 321 ... vertical wall, 23, 223, 323 ... projection, 30 ... engagement part, 31, 51 ... first surface, 36, 56 ... second surface 41, 141, 241 ... Horizontal wall, 46, 146, 246 ... Hole, 60 ... Joint, 61, 261, 361 ... Root, 62, 262, 362 ... Neck, 63, 263, 363 ... Tip, 66 ... wide part, 67 ... narrow part, 68, 168A, 168B, 268 ... bulge part, 68a ... concave part, 80 ... cut 169 ... guide rib (pressing portion), 271 ... first detachment preventing portion, 271a ... upper inclined surface (first facing surface), 271b ... lower inclined surface, 272 ... notched recess, 276 ... second Detachment prevention portion, 276a ... lower inclined surface (second facing surface), 276b ... upper inclined surface, 373 ... notch groove

Claims (14)

A casing that forms a side wall of a casing with a rectangular first plate and a second plate each having a first surface and a second surface on the front and back,
A pair of plate coupling bodies that rotatably couple the end portions of the first plate body and the second plate body by a connection portion; and
A side plate having a hole for a tube through which a pipe material penetrating the inside and outside of the housing is inserted,
The first plate has a protrusion protruding in the extending direction of the first plate from the end surface opposite to the connection portion,
The second plate has a hole penetrating in the thickness direction of the second plate at the end opposite to the connection portion,
The connecting plate is configured such that one of the pair of plate connecting members is inserted into the other hole, the other protrusion is inserted into the one hole, and the first surface and the second surface. Of these, selectively forming one of the inner side or the outer side as a rectangular side wall in plan view ,
A casing provided in a part of the side wall with a notch that opens upward or downward and into which the side plate is fitted .   2. The plate coupling body can be folded with the first and second surfaces of the first plate and the second plate facing each other with the connection portion as a fulcrum. The housing described in 1. The projecting portion includes a tip portion and a neck portion that is located on the base side from the tip portion and narrower in the plate thickness direction than the tip portion,
The hole portion is connected to the wide portion that is wider in the horizontal direction than the tip portion and to the wide portion on the lower side of the wide portion, and is wider in the horizontal direction than the neck portion of the protrusion and narrower in the horizontal direction than the tip portion. Narrow width part,
The case according to claim 1, wherein the neck portion is fitted into the narrow portion. The first plate body has a first detachment preventing portion that forms a first facing surface facing upward on the protrusion,
The second plate has a second detachment preventing portion that forms a second facing surface facing downward around the hole portion,
The first detachment prevention portion and the second detachment prevention portion are configured such that the first facing surface and the second facing surface face each other in a vertical direction in a state where the protruding portion is inserted into the hole portion. The housing of claim 3 that engages. The first detachment prevention part is a convex part extending from the tip part of the protrusion part toward the root side,
The second detachment preventing portion is a pair of convex portions projecting on both sides in the thickness direction of the second plate body,
The first detachment preventing portion engages with one of a pair of convex portions of the second detachment preventing portion, and the first plate body has the second end on an end surface on a root side of the projecting portion. The housing according to claim 4, wherein a notch recess that accommodates the other of the pair of convex portions of the detachment preventing portion is formed.   6. A cutout groove that facilitates elastic deformation of the protrusion when the first disengagement prevention part and the second disengagement prevention part are engaged with each other on the outer peripheral surface of the protrusion. The housing described in 1. The first detachment preventing portion is a convex portion having a lower inclined surface facing downward and an upper inclined surface facing the upper side as the first opposing surface,
The lower inclined surface is in contact with the second detachment preventing portion when the neck portion of the projection portion is inserted into the narrow portion of the hole portion;
The case according to any one of claims 4 to 6, wherein the upper inclined surface comes into contact with the second detachment preventing portion when the neck portion of the protruding portion is removed from the narrow portion of the hole portion. .   The housing according to any one of claims 1 to 7, wherein a pressing portion that protrudes toward a horizontal center side of the hole portion and presses the protrusion portion is formed on an inner surface of the hole portion.   The housing according to any one of claims 1 to 8, wherein the first surface and the second surface of the first plate body and the second plate body have different surface shapes.   The housing according to claim 9, wherein a rib structure capable of holding a heat insulating material is formed on the first surface of the first plate body and the second plate body. Either one of the upper end surface and the lower end surface of the plate connector is provided with an assembly convex portion protruding along the vertical direction, and the other is provided with an assembly concave portion at a position overlapping the assembly convex portion in plan view.
The casing according to any one of claims 1 to 10, wherein the plate coupling body is stacked in a vertical direction and the assembly convex portion is fitted into the assembly concave portion.   The assembly convex portion and the assembly concave portion are provided on one or both of the first plate body and the second plate body, and are disposed asymmetrically with respect to the center in the extending direction of the plate body. Item 12. The housing according to Item 11.   The said side wall of the planar view rectangular shape formed combining a pair of said board coupling body is further equipped with the bottom member located below, and the cover body which can be opened and closed located above. The housing | casing as described in any one. Provided with a side plate having a tube hole through which the pipe material penetrating the inside and outside of the housing is inserted, the side plate is prepared in a plurality of types with different sizes or numbers of the tube hole,
A part of the side wall is provided with a notch-shaped fitting port that opens upward or downward, and the notch is a fitting port, and the fitting port includes any one of a plurality of types of the side plates. The housing | casing as described in any one of Claims 1-13 which selects and inserts.

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