JP6478781B2 - Enclosure - Google Patents

Description

  The present invention relates to a housing that can be easily assembled.

  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 (page 3, FIGS. 1 and 2)

  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.

  A housing of the present invention for achieving the above-mentioned object is a housing that forms a side wall with a plurality of plate-like vertical walls and a plurality of plate-like horizontal walls, and is provided at one end of the vertical wall. One of the projection and the hole is formed, the other of the projection and the hole is formed at the other end, and the other of the vertical wall is engaged with one of the lateral walls. Forming one of the projecting portion and the hole portion to be combined, and forming the other end of the projecting portion and the hole portion to be engaged with either one of the vertical walls at the other end portion; The vertical wall and the horizontal wall are connected to each other by engagement between the portion and the hole portion to form the side wall, and a first reverse-preventing portion is formed on the protruding portion, and the surface side of the hole portion And on the back surface side, a second reverse portion preventing portion engageable with the first reverse portion preventing portion is formed.

  According to the present invention, assembling of the casing is easy and desired performance of the casing can be exhibited.

  <Explanation of drawings>

It is a whole perspective view at the time of using the housing | casing which concerns on 1st Embodiment of this invention as an object for 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, (a) is a perspective view of a vertical wall, (b) is a front view of the surface of a vertical wall, (c) is a front view of the back surface of a vertical wall. is there. It is a figure which shows the horizontal wall of a housing | casing same as the above, (a) is a perspective view of a horizontal wall, (b) is a front view of the surface of a horizontal wall, (c) is a front view of the back surface of a horizontal wall. It is a figure when a housing | casing same as the above is used for cold districts, (a) is a whole perspective view when a housing | casing is used for cold districts, (b) is a decomposition | disassembly when a housing | casing is used for cold districts It is a perspective view. It is a figure which shows the structure of the connection part in case a housing | casing same as the above is used for cold regions, (a) is sectional drawing of a connection part, (b) is a figure which provides a heat insulating material in a rib structure. 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 structure of a connection part in case a housing | casing same as the above is used for a settlement prevention, (a) is sectional drawing of a connection part, (b) is an expanded sectional view of a connection part, (c) is It is an expanded sectional view at the time of trying to reverse. It is a figure which shows the modification 1 of a housing | casing, (a) is a front view which shows the guide rib formed in a connection part, (b) is a figure which shows the engagement state of the connection part which provides a guide rib. It is a figure which shows the modification 2 of a housing | casing, (a) is the fragmentary perspective view of the vertical wall and horizontal wall which formed the removal prevention part, (b) is sectional drawing of a vertical wall, and the front view of a horizontal wall. It is a figure which shows the mode of a fitting of a detachment prevention part, (a) is a figure before inserting a protrusion part in a hole, and a detachment prevention part is fitted, (b) is after a detachment prevention part is fitted. (C) is an enlarged view thereof. It is a figure which shows the modification 3 of the housing | casing which provided the notch groove in the projection part which forms a removal prevention part. It is a figure which shows the mode of fitting of the detachment prevention part which provides a notch groove, (a) is a figure before inserting a protrusion part in a hole part, and a detachment prevention part is fitted, (b) is a detachment prevention part. FIG. It is a figure which shows the structure of an assembly frame, (a) is a figure which comprises an assembly frame using only a vertical wall, (b) is a figure which comprises an assembly frame using only a horizontal wall. It is a figure which shows the assembly frame body which formed the fitting port in the horizontal wall and attached the spacer.

<First Embodiment>
A first embodiment showing an example of an embodiment to which the present invention is applied (hereinafter referred to as “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.

  The housing 1 is an underground structure protection box (water meter box) that protects an underground structure (not shown) such as a water meter. The housing 1 includes a lid 2, an upper frame 3, an assembly frame 4 that is a side wall, and a bottom plate 5. 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 having a rectangular shape in plan view and having an opening 6 (see FIG. 2). A plate-like lid 2 capable of opening and closing the opening 6 is detachably and rotatably attached to the opening 6 of the upper frame 3. A bottom plate (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 plate 5 serves to block the lower side of the housing 1.

  FIG. 2 is an exploded perspective view when the housing 1 is used for preventing settlement. The subsidence prevention is to prevent sinking of the casing 1 that is buried in the ground into the ground.

  The lid 2 is formed with a recess 11 that serves as a support shaft when the lid 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 upper frame 3 and the assembly frame 4 can be removed by fitting a plurality of assembly protrusions 7 formed on the upper side of the assembly frame 4 and a plurality of assembly recesses (not shown) formed on the lower side of the upper frame 3. assemble. The assembly frame body 4 and the bottom plate 5 are removably assembled by fitting a plurality of assembly projections 8 formed on the upper side of the bottom plate 5 and assembly recesses (not shown) formed on the lower side of the assembly frame body 4. The assembly protrusions 7 and 8 provided on the assembly frame 4 and the bottom plate 5 and the assembly recesses (not shown) provided on the upper frame 3 and the assembly frame 4 may be formed in reverse. Moreover, the shape of the assembly protrusions 7 and 8 and the assembly recess (not shown) may be other. For example, the assembly protrusions 7 and 8 may be used as locking pieces, and the assembly recess (not shown) may be formed as an engagement portion.

  On the side wall 15 of the bottom plate 5, for example, a plate-like spacer 19 having a notch-like insertion portion 16 that can be inserted upstream and downstream of a water meter (underground structure) not shown is detachable (attachable). A joint (hole) 14 is formed. The fitting port 14 may be formed on both the assembly frame 4 and the bottom plate 5 and combined.

  The spacer 19 is composed of a member different from the assembly frame body 4 and the bottom plate 5, and a plurality of types having different numbers of insertion portions 16 are prepared (see FIG. 2). And, by using one spacer 19 selected according to the number of underground structures (accommodated items) accommodated in the casing 1 from among the plurality of types of spacers 19, it is easily accommodated in the casing 1. It can accommodate the number of underground structures to be accommodated.

  1 and 2, the fitting port 14 is provided on the short side of the side wall 15 of the bottom plate 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 side wall 15 of the bottom plate 5, and the unused fitting port 14 may be closed with a spacer without the insertion portion 16. Further, the fitting port 14 may be provided on the vertical wall 21 or the horizontal wall 41 or may be provided on the vertical wall 21 or the horizontal wall 41 and the bottom plate 5 for combination.

  The housing 1 can change the number of the insertion parts 16 only by exchanging the spacers 19. Moreover, when accommodating the storage thing which does not require the insertion part 16 in the housing | casing 1, the plate-shaped spacer 19 which does not have the insertion part 16 is used. That is, the housing 1 can easily cope with a change in the number of underground structures such as water meters accommodated in the housing 1 only by replacing the spacer 19.

  A plurality of long holes 18 are formed in the bottom surface 17 of the bottom plate 5. The long hole 18 can also be used as an attachment hole for fixing the base of a water meter accommodated in the housing 1, for example. Further, the long hole 18 discharges water flowing into the housing 1 to the outside of the housing 1.

  The assembly frame (side wall) 4 is constituted by, for example, connecting and assembling a plurality of long plate-like vertical walls 21 and horizontal walls 41 to each other. That is, the left and right surfaces of the assembly frame 4 that are the side walls of the housing 1 are configured by the vertical walls 21 that are spaced apart from each other, and the front and rear surfaces of the assembly frame 4 are configured by the horizontal walls 41 that are spaced apart from each other. The vertical wall 21 is formed to have a shorter dimension in the longitudinal direction than the horizontal wall 41. The horizontal wall 41 is longer than the vertical wall 21 in the longitudinal direction.

  However, the vertical wall 21 and the horizontal wall 41 may have other dimensions. For example, the vertical wall 21 and the horizontal wall 41 may have the same dimensions. In other words, the assembly frame 4 may be composed of only the vertical wall 21 or the horizontal wall 41.

  Further, the vertical wall 21 may be longer than the horizontal wall 41 depending on 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 body 2, the upper frame 3, and the bottom plate 5 of the housing 1 have dimensions that match the assembly frame body 4.

<Vertical wall>
As shown in FIG. 3A, the vertical wall (short side wall) 21 is a long plate-like member. On one end 22a in the longitudinal direction of the vertical wall 21, a plurality of, for example, two upper and lower protrusions 23 having a T shape in plan view are formed. In addition, a hole 26 that engages with the protrusion 43 of the horizontal wall 41 is formed at the other end 22 b in the longitudinal direction of the vertical wall 21. The holes 26 are formed by penetrating through the front and back surfaces of the vertical wall 21 a plurality of, for example, two upper and lower holes 26 each having a reverse convex shape when viewed from the side.

  The protrusion 23 is detachably engaged with a hole 46 formed in the other end 42b of the lateral wall 41 described later. Further, an extended portion 25 that is a plate-like protruding plate portion extending from the upper surface 24 of the vertical wall 21 is formed on the upper side of the end portion 22a that forms the protruding portion 23. On the upper side of the end portion 22b that forms the hole portion 26, a cutout portion 27 that engages with an extension portion 45 formed on one end portion 42a of the lateral wall 41 described later is formed. The extending portion 25 engages with a concave cutout portion 47 formed at the other end portion 42b of the lateral wall 41 described later. In the assembly frame 4, the vertical wall 21 has the extending portion 25 and the cutout portion 27, and the horizontal wall 41 has the extending portion 45 and the cutout portion 47, so that the upper surface of the vertical wall 21 is engaged. The upper surface of 24 and the upper surface 44 of the lateral wall 41 can be assembled in the same plane. As shown in FIG. 1, the upper frame 3 engages with the assembly protrusions 7 formed on the vertical wall 21 and the horizontal wall 41, respectively. The number of the protrusions 23 and the holes 46 formed on the vertical wall 21 and the horizontal wall 41 may be one or a plurality of two or more.

<Details of vertical wall>
The vertical wall 21 has a front surface 31 as shown in FIG. 3B and a back surface 36 as shown in FIG. A plurality of rib structures 32 are formed on the 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 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.

  On the back surface 36 of the vertical wall 21, a thin concave portion 37 and a thin convex portion 38 for reinforcement are formed, and the rib structure 32 like the front surface 31 is not formed. That is, the back surface 36 of the vertical wall 21 has a shape different from that of the front surface 31. The thin concave portion 37 and the thin convex portion 38 are formed in a direction and a degree that are not affected by freezing when the casing 1 is used in a cold region. The back surface 36 may be formed on a smooth plane without forming the concave portion 37 and the convex portion 38.

<Horizontal wall>
As shown in FIG. 4A, the lateral wall (long side wall) 41 is a long plate-like member. A plurality of, for example, two upper and lower protrusions 43 having a T shape in plan view are formed on one end 42a in the longitudinal direction of the horizontal wall 41. The protrusion 43 is detachably engaged with the hole 26 of the vertical wall 21. In addition, a hole 46 that engages with the protrusion 23 of the vertical wall 21 is formed in the other end 42 b in the longitudinal direction of the horizontal wall 41. The hole portion 46 is formed by penetrating through the front and back surfaces of the horizontal wall 41 a plurality of, for example, two upper and lower hole portions 46 having a reverse convex shape when viewed from the side. The hole 46 engages with the protrusion 23 of the vertical wall 21 described above, and holds the assembly frame body 4 constituted by the plurality of long plate-like vertical walls 21 and the plurality of horizontal walls 41 in a frame shape. In other words, the protruding portion 43 of the horizontal wall 41 and the hole portion 26 of the vertical wall 21 connect the vertical wall 21 and the horizontal wall 41 to each other to form a connecting portion 30 that holds the assembly frame 4 in a frame shape.

  Further, on the upper side of the end portion 42b forming the hole portion 46, a part of the upper surface 44 of the lateral wall 41 is cut out to form a concave cutout portion 47. The notch 47 is engaged with the extension 25 formed in the vertical wall 21. Thereby, the upper surface 24 of the vertical wall 21 and the upper surface 44 of the horizontal wall 41 become the surface of the same height, and the upper frame 3 is the assembly formed in each of the vertical wall 21 and the horizontal wall 41 as shown in FIG. Engage with the protrusion 7.

  The horizontal wall 41 has a front surface 51 as shown in FIG. 4B and a back surface 56 as shown in FIG. A plurality of rib structures 52 are formed on the 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 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.

  On the back surface 56 of the horizontal wall 51, a thin concave portion 57 and a thin convex portion 58 for reinforcement are formed in the same manner as the vertical wall 21, and the rib structure 52 like the front surface 51 is not formed. That is, the back surface 56 of the horizontal wall 41 has a shape different from that of the front 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 casing 1 is used in a cold region. Note that the back surface 56 may be formed in a smooth plane without forming the concave portion 57 and the convex portion 58.

<Assembly frame>
The two vertical walls 21 and the two horizontal walls 41 constituting the assembly frame body 4 of the first embodiment have front surfaces (uneven surfaces) 31 and 51 and back surfaces (flat surfaces) 36 and 56, respectively. The assembly frame 4 is assembled and used by combining the front surfaces 31 and 51 of the vertical wall 21 and the horizontal wall 41 with the back surfaces 36 and 56. In other words, the assembly frame 4 configured with all the surfaces 31 and 51 facing outward can be used for preventing settlement. Further, the assembly frame 4 configured with all the back surfaces 36 and 56 facing outward can be used for cold regions.

<Prevention of settlement>
As shown in FIG. 1, the housing 1 used for preventing the settlement assembles the assembly frame 4 with the surface 31 of the vertical wall 21 and the surface 51 of the horizontal wall 41 facing outward. Then, the lid 1, the upper frame 3, and the bottom plate 5 are assembled to the assembly frame body 4 with the surface 31 of the vertical wall 21 and the surface 51 of the horizontal wall 41 on the outside, and the housing 1 is used.

  In the assembly frame 4 of the housing 1 used for preventing settlement, the 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 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. In other words, 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>
Fig.5 (a) shows the whole perspective view of the housing | casing 1 in the case of using the housing | casing 1 for cold districts. 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 FIG. 5B, the housing 1 used for a cold district assembles the assembly frame 4 with the back surface 36 of the vertical wall 21 and the back surface 56 of the horizontal wall 41 facing the outside of the housing 1. Then, the lid 2, the upper frame 3, and the bottom plate 5 are assembled to the assembly frame body 4 with the back surface 36 of the vertical wall 21 and the back surface 56 of the horizontal wall 41 facing outside, as shown in FIG. Is used.

  As shown in FIG. 6 (a), the assembly frame 4 when used in a cold district has the surfaces 31, 51 having rib structures 32, 52 facing the inside of the assembly frame 4, and the assembly frame 4 4 is the inner surface. Therefore, as shown in FIG. 6B, for example, a heat insulating material 80 such as foamed resin is accommodated in the recesses 34 and 54 of the rib structures 32 and 52 to hold the heat insulating material 80. The heat insulating material 80 held by the rib structures 32 and 52 covers at least the entire inner surface of the assembly frame 4, and the heat insulating effect of the heat insulating material 80 prevents a temperature drop in the housing 1 used for cold districts. Prevents water in the water container contained in 1 from being 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.

  When the housing 1 is used for a cold region, the housing 1 is embedded at a deeper position than the housing 1 is embedded 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 the temperature change on the ground surface. In this case, as shown in FIG. 7, the assembly frame body 4 of the housing 1 can be embedded by being stacked in a plurality of stages (for example, two stages) in the vertical direction.

  In addition, for example, the lower surface of each horizontal wall 41 is formed with one misassembly prevention protrusion (protrusion prevention protrusion) 13b, and the bottom plate 5 is fitted with the misassembly prevention protrusion 13b. Hole 13a is formed. The combination prevention protrusions 13b of the horizontal walls 41 are formed at positions that are asymmetrical when the assembly frame 4 aligns the front surfaces 31 and 51 and when the rear surfaces 36 and 56 align.

  The combination prevention hole 13a of the bottom plate 5 is provided with a combination prevention protrusion 13b of the assembly frame 4 that aligns the back surface 36, 56 with two places that match the combination prevention protrusion 13b of the assembly frame 4 that aligns the front surfaces 31 and 51. Form a total of 4 locations with 2 locations that fit. As a result, the bottom plate 5 can be assembled regardless of whether the front surfaces 31 and 51 of the assembly frame 4 are aligned or the rear surfaces 36 and 56 are aligned.

  On the upper surface 44 of the horizontal wall 41 opposite to the surface on which the projection for preventing the combination 13b is provided, one combination prevention hole (a combination prevention recess) 13c that can be fitted to the combination prevention projection 13b is formed. 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. In addition, the combination prevention unevenness includes a combination prevention protrusion 13b and a combination prevention hole 13c that are detachably fitted to each other.

  Further, the assembly frame bodies 4 that are adjacent to each other in the vertical direction are removably assembled by fitting the assembly protrusions 7 of the lower assembly frame body 4 and assembly recesses (not shown) of the upper assembly frame body 4. In this case, if the heat insulating material 80 used for the assembly frame body 4 to be stacked and assembled is an integral structure that can insulate the plurality of assembly frame bodies 4 integrally, the plurality of assembly frame bodies 4 can be integrally closed. Furthermore, the heat insulation effect is high.

  As described above, the assembly frame 4 in which the surfaces 31 and 51 having the rib structures 32 and 52 face inward is provided with the heat insulating material 80 on the rib structures 32 and 52 to enhance heat retention, and the housing 1 is used for cold districts. Can be used as

<Connecting structure>
Next, details of the structure of the connecting portion 30 of the assembly frame 4 will be described.

  Fig.8 (a) shows the engagement state of the connection part 30 in case the housing | casing 1 is used for prevention of settlement. As shown in FIG. 8A, the assembly frame 4 when used for preventing settlement is assembled with the surface 31 of the vertical wall 21 and the surface 51 of the horizontal wall 41 facing outward. In other words, when the housing 1 is used for preventing settlement, the rib structures 32 and 52 formed on the surface 31 of the vertical wall 21 and the surface 51 of the horizontal wall 41 are arranged outside.

  In the first embodiment, the protrusion 23 is formed at one end 22a of the vertical wall 21, the hole 26 is formed at the other end 22b, and the protrusion 43 is formed at one end 42a of the horizontal wall 41. Although the hole 46 is formed in the other end 42b, other holes may be used. That is, the hole 26 is formed at one end 22a of the vertical wall 21, the protrusion 23 is formed at the other end 22b, the hole 46 is formed at one end 42a of the horizontal wall 41, and the other end 42b. The protrusion 43 may be formed on the surface. That is, the vertical wall 21 and the horizontal wall 41 form either one of the protrusions and the hole at one end, and the other one of the protrusion and the hole between the other end. As a result, the assembly frame body 4 configured by assembling the vertical wall 21 and the horizontal wall 41 can be assembled with the front surface or the back surface aligned without making a mistake in the front surface or the back surface.

<Details of protrusion>
The details of the protrusion will be described by taking the protrusion 23 as an example. As shown in FIG. 8B, the protrusion 23 of the vertical wall 21 is formed so as to protrude from one end 22 a in the longitudinal direction of the vertical wall 21. The protrusion 23 includes a root portion 61 protruding from the end portion 22a of the vertical wall 21, a neck portion 62 that is formed with a narrower width than the root portion 61 and extends outward from the root portion 61, and a vertical wall at the tip of the neck portion 62. 21 has a distal end portion 63 which is a head formed with a width wider than the neck portion 62 in the thickness direction of 21 (direction from the front surface 31 to the rear surface 36). The protrusion 23 has the same dimension in the height direction (the height direction that is above and below the vertical wall 21) from the root part 61, the neck part 62, and the tip part 63.

  And in the vicinity which forms the projection part 23, as shown in FIG. 8, the reverse attachment prevention recessed part 65 which is a 1st reverse attachment prevention part is formed in step shape. Specifically, the reverse rotation preventing recess 65 is formed, for example, by cutting out a part of the root portion 61 in the root portion 61 of the protrusion 23. The reverse attachment preventing recess 65 is formed only on the back surface 36 side of the vertical wall 21, for example. In other words, the reverse rotation preventing recess 65 is formed only on one surface side of the vertical wall 21. In addition, although the projection part 23 was demonstrated as an example, the projection part 43 is formed similarly.

<Details of the hole>
On the other hand, the hole 46 of the lateral wall 41 is formed through the other end 42b in the longitudinal direction of the lateral wall 41 in the thickness direction of the lateral wall 41. As shown in FIG. 4B, the hole 46 has the large hole 66 communicating in the thickness direction of the lateral wall 41 (direction from the front surface 51 to the back surface 56) on the upper side and the small hole 67 on the lower side. Have. The large hole portion 66 is formed from the front surface 51 and the back surface 56 of the horizontal wall 41 so as to accommodate the root portion 61 of the protrusion 23 of the vertical wall 21.

  The small hole portion 67 is formed in a shape that is cut out below the large hole portion 66. The small hole portion 67 is formed by a width, a length, and a depth to be engaged (fitted) with the neck portion 62 of the projection portion 23. In other words, the small hole portion 67 is provided with a protruding portion 68 that protrudes at a substantially intermediate position of the large hole portion 66 so as to have a width, a length, and a depth that engage only with the neck portion 62 of the protruding portion 23. Form. That is, below the large hole portion 66, a protruding portion (bulging portion) 68 that makes a pair with the same size is provided to form the small hole portion 67. The protruding portion 68 protrudes toward the center side of the lateral wall 41 in the hole portion 46, and protrudes from the central side of the lateral wall 41 at two locations. That is, the small hole portion 67 into which the neck portion 62 is inserted is located between the protruding portions 68 that are spaced apart from each other.

  Further, in the vicinity of each protrusion 68, a reverse-preventing convex portion 70, which is a second reverse-preventing portion engaging with the reverse-preventing concave portion 65 of the protrusion 23 of the vertical wall 21, is formed. The reverse-preventing convex portions 70 are formed at two locations, that is, the front surface 51 side of the projecting portion 68 projecting toward the center side of the lateral wall 41 and the back surface 56 side of the projecting portion 68 projecting from the center side of the lateral wall 41. In other words, two anti-reverse protrusions (front-side anti-reverse protrusions and back-side anti-reverse protrusions) 70 are the protrusions 68 protruding oppositely across the small hole 67 provided in the hole 46, The horizontal wall 41 is formed in a diagonally opposite position in the thickness direction. That is, the reverse rotation preventing convex portions 70 that can be engaged with the reverse rotation preventing concave portions 65 are formed on the front surface side and the back surface side of the hole 43, respectively. Although the hole 46 has been described as an example, the hole 26 is formed in the same manner.

<Usage example>
When the casing 1 is used for preventing settlement, the assembly frame 4 is assembled with the surface 31 of the vertical wall 21 and the surface 51 of the horizontal wall 41 facing outward. Specifically, after inserting the plurality of protrusions 23 of the vertical wall 21 into the large hole portion (upper hole portion) 66 of the plurality of hole portions 46 of the horizontal wall 41 until the end portion 22a contacts the back surface 56, the lower side To the small hole portion (lower hole portion) 67. Then, the neck 62 of the projection 23 of the vertical wall 21 enters the small hole 67 in the hole 46 of the horizontal wall 41, and the neck 62 of the projection 43 of the horizontal wall 41 is small in the hole 26 of the vertical wall 21. The hole 67 enters and the vertical wall 21 and the horizontal wall 41 are engaged. At this time, the reverse rotation preventing recess 65 formed in the projection 23 of the vertical wall 21 and the reverse rotation prevention convex portion 70 formed in the hole 43 of the horizontal wall 41 are engaged with each other by unevenness such as a key and a key hole. Does not interfere. That is, when the surfaces 31 and 51 are assembled on the same side, the vertical wall 21 and the horizontal wall 41 can be assembled without any obstacles.

  However, for example, when the assembly frame 4 is assembled, as shown in FIG. 8C, if one of the vertical wall 21 or the horizontal wall 41 is erroneously attached in the reverse direction, that is, the vertical wall 21 and the horizontal wall When one of 41 is to be reversely attached to the other, the reverse-preventing convex portion 70 formed in the hole 46 of the horizontal wall 41 is formed on the base portion 61 of the protrusion 23 of the vertical wall 21. Of these, it comes into contact with the corner portion 61a on the opposite side to the reverse rotation preventing recess 65 side. In other words, when one of the vertical wall 21 and the horizontal wall 41 is to be reversed with respect to the other, the protrusion 23 (43) cannot be completely inserted into the hole 46 (26). For this reason, the neck 62 cannot be fitted into the small hole 67. In other words, the reverse attachment preventing convex portion 70 can prevent the vertical wall 21 and the horizontal wall 41 from being reversely assembled (reverse attachment prevention) when the vertical wall 21 and the horizontal wall 41 are assembled to the surfaces 31 and 51. Thereby, the housing | casing 1 can assemble | attach the assembly frame body 4 without making a mistake, when assembling | attaching and using the surfaces 31 and 51 on the outer side.

  In the case 1 of the present embodiment, the vertical wall 21 and the horizontal wall 41 each have one of a protrusion (23, 43) and a hole (26, 46) at one end (22a, 42a). Each of the other end portions (22b, 42b) is formed with either the projection (23, 43) or the hole (26, 46). The protrusions (23, 43) have a root part 61, a neck part 62, and a tip part 63, and the hole parts (26, 46) have a large hole part 66, a small hole part 67, and a protruding part 68. Further, the vertical wall 21 and the horizontal wall 41 have an extended portion (25, 45) at one end (22a, 42a) and a notch (27, 47) at the other end (22b, 42b). Have For this reason, the casing 1 of the present embodiment is not reversed with the direction of the vertical wall 21 or the horizontal wall 41 being mistaken.

  On the other hand, when assembling the housing 1 for a cold district as shown in FIG. 5A, the assembly frame 4 is assembled with the back surface 36 of the vertical wall 21 and the back surface 56 of the horizontal wall 41 facing outward. Specifically, the plurality of protrusions 23 and 43 of the vertical wall 21 and the horizontal wall 41 are connected to the large holes 66 in the plurality of holes 26 and 46 of the vertical wall 21 and the horizontal wall 41 and the end portions 22a and 42a are the surfaces 51. After being inserted until it abuts against the lower hole portion 67, it is pressed to the lower small hole portion 67. Then, the protruding portion 23 of the vertical wall 21 and the neck portion 62 of the protruding portion 43 of the horizontal wall 41 enter the small hole 67 in the holes 26 and 46 of the vertical wall 21 and the horizontal wall 41, and the vertical wall 21 and the horizontal wall 41 are connected. Engage. Each of the vertical wall 21 and the horizontal wall 41 has one end (22a, 42a) with one of a protrusion (23, 43) or a hole (26, 46) and the other end (22b, 42b). The other of the protrusions (23, 43) and the hole portions (26, 46) is formed. For this reason, when the assembly frame 4 is assembled, either one of the vertical wall 21 and the horizontal wall 41 is not reversed with respect to the other. As a result, the housing 1 can be assembled without mistakes even when the rear surfaces 36 and 56 are assembled outside and used.

<Description of insulation>
Further, the assembly frame body 4 when used for a cold district is in a state in which the surfaces 31 and 51 having the rib structures 32 and 52 face the inside of the assembly frame body 4. Therefore, as shown in FIG. 6 (b), a heat insulating material 80 is accommodated in the recesses 34 and 54 of the rib structures 32 and 52. The heat insulating material 80 can be accommodated at an appropriate time before or after the assembly frame 4 is assembled. Since the heat insulating material 80 has a heat insulating effect, the temperature in the housing 1 is prevented from lowering and water in the water meter stored in the housing 1 is prevented from freezing. As the heat insulating material 80, urethane foam, phenol foam, polystyrene foam, beaded polystyrene, foamed heat insulating materials such as foam rubber, fiber heat insulating materials such as rock wool and glass wool, airgel, and the like are used as appropriate.

  Further, as shown in FIG. 6B, the heat insulating material 80 may be formed as an integral structure and cover the plurality of rib structures 32 and 52. The integral heat insulating material 80 blocks the gap between the vertical wall 21 and the horizontal wall 41 that form the assembly frame 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. Also, the integral heat insulating material 80 can be attached simply by being fitted into the recesses 34 and 54 of the rib structures 32 and 52, so that it is effective. As described above, the assembly frame 4 in which the surfaces 31 and 51 having the rib structures 32 and 52 face the inside of the assembly frame 4 uses the housing 1 for a cold district by the heat insulating material 80 provided on the rib structures 32 and 52. it can.

<Summary>
The housing 1 can be assembled according to the purpose of use with one of the front surfaces 31 and 51 or the back surfaces 36 and 56 of the vertical wall 21 and the horizontal wall 41 constituting the assembly frame 4 facing outward. When the vertical wall 21 and the horizontal wall 41 of the housing 1 are assembled with their front surfaces 31 and 51 or the back surfaces 36 and 56 aligned, they can be assembled without any obstacles. And the housing | casing 1 can prevent an assembly mistake. In other words, the housing 1 can be assembled without making a mistake on one of the front surfaces 31 and 51 or the rear surfaces 36 and 56 of the vertical wall 21 and the horizontal wall 41 of the assembly frame body 4. Multiple functions can be reliably demonstrated depending on the situation.

  The heat insulating material 80 accommodated in the recesses 34 and 54 of the rib structures 32 and 52 is a water meter that prevents the temperature in the housing 1 from being lowered by the heat insulating effect of the heat insulating material 80 and accommodates the housing 1 in the housing 1. In this case, water in the water meter can be prevented 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, and the space in the housing | casing 1 is saved. Do not narrow. 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.

<Modification 1>
Next, Modification 1 in which the guide rib 49 that is the pressing portion is formed on the connecting portion 30 will be described.

  As shown in FIG. 9A and FIG. 10A, a guide rib 49 is formed in the hole 46 of the lateral wall 41, which is a bulging guide portion that presses the projection portion 23 inward while guiding it. . Specifically, the guide rib 49 is formed in the small hole portion 67 of the hole portion 46 so as to protrude from the outer side in the longitudinal direction of the lateral wall 41 toward the central direction in the longitudinal direction of the lateral wall 41. The guide rib 49 is formed on the protruding portion 68 so as to incline toward the bottom (back) of the small hole portion 67 with the large hole portion 66 side as a starting point. That is, the guide rib 49 is formed in an inclined shape on one of the protrusions 68 so as to gradually approach the other protrusion 68 from the upper end toward the lower end.

  Then, as shown in FIG. 9 (b), when the plurality of protrusions 23 of the vertical wall 21 are inserted into the large hole portions 66 of the plurality of hole portions 46 of the horizontal wall 41 and then pressed to the lower small hole portion 67. The neck 62 of the projection 23 of the vertical wall 21 enters the small hole 67 of the hole 46 of the horizontal wall 41, and the vertical wall 21 and the horizontal wall 41 are engaged. At this time, the guide rib 49 presses the neck portion 62 formed on the protrusion 23 of the vertical wall 21 toward the center of the horizontal wall 41, and firmly holds the neck portion 62 with the protruding portion 68 facing the guide rib 49. The pressing of the neck portion 62 by the guide rib 49 reduces the gap inside the assembly frame 4 constituted by the vertical wall 21 and the horizontal wall 41. That is, the housing 1 provided with the guide ribs 49 can reduce the gap between the assembly frames 4, so that the hermeticity of the housing 1 can be improved.

  When the housing 1 having the guide rib 49 is used for preventing settlement, the inside of the housing 1 from the connecting portion 30 of the assembly frame 4 with the surface 31 of the vertical wall 21 and the surface 51 of the horizontal wall 41 facing outward. It is possible to effectively prevent soil and sand from entering. When the housing 1 is used for a cold district, the cold air into the housing 1 from the connecting portion 30 of the assembly frame 4 with the back surface 36 of the vertical wall 21 and the back surface 56 of the horizontal wall 41 facing outward. Can be effectively prevented. And the housing | casing 1 provided with the guide rib 49 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, a description will be given of a modified example 2 in which the detachment preventing protrusions 71 and 76 as the detachment preventing portion (displacement preventing portion) are further formed on the connecting portion 30 that forms the guide rib 49.

  As shown in FIGS. 10A and 10B, a first detachment prevention portion (first detachment prevention projection 71) is formed in the projection 23, and a first detachment prevention projection 71 is formed in the hole 46. A second disengagement prevention portion (second disengagement prevention protrusion 76) that can be engaged with the protrusion portion 23 and the hole portion 46 is maintained.

  That is, the second detachment prevention protrusion 76 formed in the hole 46 of the lateral wall 41 is formed to project from the front surface 51 and the back surface 56 toward the outer side in the thickness direction of the lateral wall 41 from the projection 68 of the hole 46. . In other words, the second detachment prevention protrusion 76 protrudes from one hole 46 at a total of four locations, two on the front surface 51 side and two on the back surface 56 side. The second detachment prevention protrusion 76 removably engages with the first detachment prevention protrusion 71 to reinforce the engagement of the connecting portion 30.

  On the other hand, a first detachment prevention protrusion 71 is formed on the protrusion 23 of the vertical wall 21. The first detachment prevention protrusion 71 is formed so as to protrude in the longitudinal center direction of the vertical wall 21 from the front surface 31 side and the rear surface 36 side of the vertical wall 21 of the tip portion 63 of the protrusion 23. That is, the first detachment prevention protrusion 71 protrudes from a total of two locations, one on the front surface 31 side and one on the back surface 36 side, on the neck 62 side surface of the tip portion 63 of one protrusion 23.

  In addition, on the proximal end side of the protrusion 23 of the vertical wall 21, a part of the root part 61 is cut out to form an accommodation recess 72 which is a protrusion accommodation part. That is, the accommodation recess 72 is formed by cutting out a total of two locations, one on the front surface 31 side and one on the back surface 36 side of one protrusion 23.

  The housing recess 72 houses the second detachment preventing projection 76 positioned inside the assembly frame 4 when the projection 23 and the hole 46 are engaged. That is, the accommodation recess 72 accommodates the second detachment prevention protrusion 76 that does not engage with the first detachment prevention protrusion 71 when the assembly frame body 4 is assembled. In addition, the housing recess 72 functions to smoothly guide the protrusion 23 to the hole 46 when the protrusion 23 and the hole 46 are engaged.

  The first detachment prevention protrusion 71 and the second detachment prevention protrusion 76 reinforce the engagement of the connecting portion 30. As shown in FIG. 11A, when the plurality of protrusions 23 of the vertical wall 21 are inserted into the large hole portions 66 of the plurality of hole portions 46 of the horizontal wall 41 and then pressed to the small hole portion 67 on the lower side, The neck 62 of the projection 23 of the wall 21 enters the small hole 67 in the hole 46 of the horizontal wall 41, and the vertical wall 21 and the horizontal wall 41 are engaged.

  Then, as shown in FIG. 11B, the first detachment prevention protrusion 71 of the protrusion 23 gets over the second detachment prevention protrusion 76 of the hole 46 and engages with the second detachment prevention protrusion 76. To do. Further, the second detachment preventing protrusion 76 positioned inside the assembly frame 4 is accommodated and accommodated in the accommodating recess 72 formed on the front surface 31 and the rear surface 36 of the vertical wall 21.

  The first detachment prevention protrusion 71 and the second detachment prevention protrusion 76 are connected when the connecting portion 30 of the assembly frame 4 is firmly connected and a force such as sinking or floating acts on the housing 1. Disengagement of the portion 30 (that is, disengagement between the protrusion 23 and the hole 46) is prevented. Further, the first detachment prevention protrusion 71 and the second detachment prevention protrusion 76 are engaged on the outside of the assembly frame body 4. The engagement between the first detachment prevention protrusion 71 and the second detachment prevention protrusion 76 presses the connecting portion 30 of the assembly frame body 4 from the outside to prevent the engagement displacement between the vertical wall 21 and the horizontal wall 41. . Further, the engagement between the first detachment prevention protrusion 71 and the second detachment prevention protrusion 76 reduces the gap inside the assembly frame 4 constituted by the vertical wall 21 and the horizontal wall 41. That is, since the housing | casing 1 can reduce the clearance gap between the assembly frame bodies 4, the sealing property of the housing | casing 1 improves.

  When the housing 1 having the guide rib 49 and the detachment prevention protrusions 71 and 76 is used for preventing settlement, the connection of the assembly frame 4 with the surface 31 of the vertical wall 21 and the surface 51 of the horizontal wall 41 facing outward. Intrusion of earth and sand from the portion 30 into the housing 1 can be prevented more effectively.

  When the housing 1 is used for a cold district, the cold air into the housing 1 from the connecting portion 30 of the assembly frame 4 with the back surface 36 of the vertical wall 21 and the back surface 56 of the horizontal wall 41 facing outward. Can be effectively prevented. And the housing | casing 1 provided with the guide rib 49 and the removal prevention protrusions 71 and 76 can prevent the inside of the housing | casing 1 more effectively combined with the heat insulation effect by the heat insulating material 80. FIG.

<Modification 3>
Next, a third modification in which a notch groove 73 is further formed in the connecting portion 30 that forms the disengagement prevention protrusions 71 and 76 will be described.

  As shown in FIG. 12, a notch groove 73, which is a concave portion that opens downward, is formed in the neck 62 of the protrusion 23. As shown in FIG. The cutout groove 73 is formed by cutting out a part of the lower side of the neck 62 of the protrusion 23. The notch groove 73 provides an elastic force that makes the protrusion 23 easily elastically deformed when the first disengagement prevention protrusion 71 contacts the second disengagement prevention protrusion 76. That is, the protrusion 23 is elastically deformed by the notch groove 73 when the first disengagement prevention protrusion 71 and the second disengagement prevention protrusion 76 come into contact with each other.

  As shown in FIG. 13A, the assembly frame body 4 provided with the notch groove 73 presses the projection 23 into the large hole 66 of the hole 46 and then presses it to the small hole 67 on the lower side. At this time, the protrusion 23 is elastically deformed by the notch groove 73 formed in the neck 62 of the protrusion 23. That is, the protrusion 23 is elastically deformed so that the notch groove 73 is expanded when the first disengagement prevention protrusion 71 and the second disengagement prevention protrusion 76 abut. Therefore, the protrusion 23 can smoothly enter the small hole 67 of the hole 46 and engage with the connecting part 30 as shown in FIG.

  Thus, when the first detachment prevention protrusion 71 and the second detachment prevention protrusion 76 abut, the protrusion 23 is elastically deformed. Therefore, when the assembly frame 4 is assembled, the protrusion 23 and the hole 46 can be connected smoothly. Further, the assembly frame body 4 provided with the notch groove 73 is elastically deformed when the first detachment prevention protrusion 71 and the second detachment prevention protrusion 76 come into contact with each other even when disassembled. The part 23 and the hole 46 can be released smoothly.

  Further, as shown in FIG. 11 (c), an upper inclined surface 81 is formed on the upper surface side of the first detachment prevention protrusion 71, and the lower surface of the first detachment prevention protrusion 71 is formed on the first detachment prevention protrusion 71. A lower inclined surface 82 may be formed on the side. For example, when the upper inclined surface 83 and the lower inclined surface 84 of the second detachment prevention protrusion 76 are formed with the same inclination as the upper inclined surface 81, the assembly frame body 4 can be easily assembled and the assembly frame body can be assembled. In consideration of prevention of inadvertent detachment 4, the upper inclined surface 81 is formed on a steep inclined surface, and the lower inclined surface 82 is formed on a loose inclined surface.

  That is, when the inclination angle α of the upper inclined surface 81 with respect to the horizontal direction of the first detachment prevention protrusion 71 is substantially the same as the inclination between the upper surface side and the lower surface side of the second detachment prevention protrusion 76, The inclination angle β of the lower inclined surface 82 is formed to be smaller than the inclination angle α. As a result, the lower inclined surface 82 formed at the inclination angle β slides in a state where the contact area is small when contacting the second detachment preventing protrusion 76 when the protrusion 23 is engaged with the hole 46. For this reason, the protrusion 23 and the hole 46 can be smoothly engaged.

  Further, the upper inclined surface 81 of the first detachment prevention protrusion 71 is formed at the same inclination angle α as the lower surface side of the second detachment prevention protrusion 76. For this reason, the engagement between the first detachment preventing protrusion 71 and the second detachment preventing protrusion 76 is not inadvertently disengaged. The upper inclined surface 81 of the first detachment prevention protrusion 71 formed at the same inclination angle α as the lower surface side of the second detachment prevention protrusion 76 is used when the protrusion 23 is disengaged from the hole 46. Although more force is required at the time of engagement, when the force is applied in the disengagement direction, the protrusion 23 and the hole 46 can be removed by sliding against the second disengagement prevention protrusion 76 and deforming. In other words, the first detachment prevention protrusion 71 having the upper inclined surface 81 and the lower inclined surface 82 can easily engage the protrusion 23 with the hole 46, and can prevent the protrusion 23 and the hole 46 from being disconnected. Prepared disengagement can be prevented. When necessary, the engagement between the projection 23 and the hole 46 can be released.

  Although the upper surface side and the lower surface side of the second detachment prevention protrusion 76 have the same inclination angle as the upper inclined surface 81 of the first detachment prevention protrusion 71, other angles may be used.

  For example, when the inclination angle α of the upper inclined surface 81 and the inclination angle β of the lower inclined surface 82 with respect to the horizontal direction of the first separation preventing projection 71 are set to substantially the same inclination angle, the second separation preventing projection 76 is used. Are formed at an inclination angle that coincides with the inclination angle α and the inclination angle β. Thus, even if the inclined surfaces of the first detachment prevention protrusion 71 and the second detachment prevention protrusion 76 are set, the first detachment prevention protrusion 71 and the second detachment prevention protrusion 76 have a contact area. Can slide smoothly and engage smoothly. Further, the engagement between the first detachment preventing protrusion 71 and the second detachment preventing protrusion 76 is not inadvertently disengaged. When necessary, the engagement between the projection 23 and the hole 46 can be released.

  When the housing 1 is frequently assembled and disassembled, the lower inclined surface 82 of the first detachment preventing projection 71 and the upper inclined surface of the second detachment preventing projection 76 so as to be easily engaged. The inclination of 83 is different, and the inclination of the upper inclined surface 81 of the first detachment prevention protrusion 71 and the inclination of the lower inclination surface 84 of the second detachment prevention protrusion 76 are different to facilitate disengagement. Also good.

<Modification 4>
As shown in FIGS. 1 and 7, the casing 1 of the first embodiment described above forms the assembly frame body 4 by combining the vertical wall 21 and the horizontal wall 41 having different lengths. .

  That is, as shown in FIG. 14 (a), four vertical walls 21 having the same shape are combined to be used as an assembly frame 4a, or four horizontal walls 41 having the same shape are used as shown in FIG. 14 (b). It can be used as an assembly frame 4b in combination.

  In the first embodiment in which the assembled casing 4 is configured by combining the two vertical walls 21 and the two horizontal walls 41, for example, two underground structures are accommodated in the casing 1. Since the assembly frame 4a combining four vertical walls 21 has a small volume, it is used, for example, when accommodating one underground structure. Moreover, since the assembly frame 4b combining four horizontal walls 41 has a large volume, it is used, for example, when accommodating three or more underground structures.

  Thus, the assembly frame 4 of this embodiment is configured by a combination of the vertical wall 21 and the horizontal wall 41 having different longitudinal dimensions. For this reason, when the dimensions of the vertical wall 21 and the horizontal wall 41 are not the same, the housing 1 can be configured with three types of assembly frames 4. In other words, by preparing a desired number of two types of a short side horizontal wall and a long side vertical wall, the assembly frame body 4 can be configured in three types according to the contents accommodated in the housing 1.

  Further, as shown in FIG. 15, for example, a fitting port (hole) 14a such as the fitting port 14 of the side wall 15 of the bottom plate 5 is formed in the horizontal wall 41 (or the vertical wall 21), and a spacer 19a is formed in the fitting port 14a. If it is attached and combined with the spacer 19 of the bottom plate 5, it becomes easy to cope with the number of items to be accommodated. For this reason, when the vertical wall 21 and the horizontal wall 41 are formed by injection molding, the number of types of molds is small.

  Moreover, the housing | casing 1 is comprised by an assembly type. For this reason, since it can be stored as a small part, the space required for storage can be reduced. For this reason, the housing 1 can be stored in a space-saving manner. Moreover, the housing | casing 1 can be conveyed in the state of the compact components which can be disassembled. 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 housing and transporting the article, the housing 1 assembled so that the surfaces 31 and 51 having the rib structures 32 and 52 of the assembly frame 4 face the outside, put the hand on the rib structures 32 and 52 facing the outside. Can be hung and transported.

  Further, when the article is stored and transported, the casing 1 assembled so that the surfaces 31 and 51 having the rib structures 32 and 52 of the assembly frame 4 face the inside holds the heat insulating material 80 on the rib structures 32 and 52. To be 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, if the heat insulating material 80 accommodated in the rib structures 32 and 52 is replaced with a heat insulating material 80 having a different thickness, the capacity of the housing 1 can be adjusted. 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. 7). And when conveying the thing which requires temperature control, 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 and transported inside, a rib structure may be formed inside the lid 2, the upper frame 3, and the bottom plate 5 of the housing 1, and a heat insulating material may be provided on the rib structure. 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 baseplate 5, and to move.

<Invention included in this embodiment>
Next, the invention included in this embodiment will be described.

  The case is a case that includes a plurality of plate-like vertical walls and a plurality of plate-like horizontal walls to form a side wall, and one of the protrusions and the hole is formed at one end of the vertical wall. One of the protrusion and the hole is formed at the other end, and one of the protrusion and the hole is engaged with the other of the vertical walls at one end of the horizontal wall. The other end of the vertical wall is formed at the other end, and the vertical wall is formed by the engagement between the protrusion and the hole. And the lateral wall are connected to each other to form the side wall, the protrusion is formed with a first reverse-preventing portion, and the first reverse-preventing portion is formed on the front surface side and the back surface side of the hole portion. And a second anti-reverse portion that can be engaged with each other.

  And when connecting a vertical wall and a horizontal wall mutually so that each surface of each of a vertical wall and a horizontal wall may become the outer surface of a side wall, a housing | casing WHEREIN: The 1st reverse rotation prevention part of a projection part and the surface side of a hole Are engaged with each other. In addition, when the vertical wall and the horizontal wall are connected to each other so that the respective back surfaces of the vertical wall and the horizontal wall are the outer surfaces of the side walls, the casing has a first reverse-preventing portion of the protruding portion and the back surface side of the hole portion. Are engaged with each other. That is, when one of the vertical wall and the horizontal wall is to be reversed with respect to the other, the first reverse prevention portion and the second reverse prevention portion are not engaged with each other and cannot be engaged. For this reason, the housing is easy to assemble, and can prevent the housing from sinking or exhibit desired performance for cold regions without mistakes in assembling the front surface side and the back surface side.

  The protrusion has a root protruding from the end, a neck formed narrower than the base, and a tip formed thicker than the neck, and the hole is a large hole that can accommodate the root. And a small hole portion that can accommodate the neck portion. For this reason, engagement with a projection part and a hole is easy.

  Further, the first reverse rotation preventing portion is formed at the base portion, and the second reverse rotation preventing portion is formed at the large hole portion. For this reason, a housing | casing does not mistake the assembly | attachment of the surface side and a back surface side.

  In addition, a first detachment prevention portion is formed on the protrusion, and a second detachment prevention portion engageable with the first detachment prevention portion is formed in the hole. For this reason, the housing can prevent inadvertent release of the assembly frame. Further, a notch groove that is elastically deformed when the first detachment preventing portion and the second detachment preventing portion are brought into contact with each other is formed in the projection portion. For this reason, since a projection part elastically deforms when assembling an assembly frame, the assembly of an assembly frame becomes easy.

  In addition, the second detachment preventing portion is formed to project to the front surface side and the back surface side of the hole portion, and the first detachment preventing portion is formed to project toward the base end side of the projecting portion and the base of the projecting portion. A housing recess for housing the second detachment preventing portion is formed on the end side. For this reason, even if the casing is assembled with either the inner side or the outer side of the assembly frame body aligned, the first release prevention portion and the second release prevention portion are engaged, and the assembly frame body is not Prepared disengagement can be prevented.

  Further, the first detachment preventing portion is formed with a lower inclined surface that contacts the second detachment preventing portion during assembly and an upper inclined surface that contacts the second detachment preventing portion during disassembly. For this reason, even if the casing is assembled with either the inner side or the outer side of the assembly frame body aligned, it is easy to assemble, and inadvertent release of engagement can be prevented.

  The hole is formed with a pressing portion that presses the protrusion engaging with the hole inward. For this reason, the housing | casing can reduce the clearance gap which can be made into the connection part of an assembly frame. That is, the casing can improve the sealing performance by strengthening the connection of the connecting portion by the pressing portion.

  Moreover, the vertical wall and the horizontal wall are formed in different shapes on the front surface and the back surface, respectively. Moreover, the rib structure which can hold | maintain a heat insulating material in any one of the surface and a back surface is formed. For this reason, the housing can be assembled without making a mistake in the front and back of the assembly frame according to the purpose of preventing settlement, for cold districts, for cold storage, etc. Desired performance such as heat insulation, heat insulation for cold districts and cold insulation.

  Further, the side walls are formed so as to be stacked in the vertical direction (short side direction). For this reason, when using a housing | casing for cold districts, a housing | casing can be embed | buried in the deep position with few temperature changes. In this case, if the heat insulating material used for the assembly frame body to be stacked and assembled has 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. Moreover, a side wall has the uneven | corrugated prevention unevenness | corrugation which can pile up the said side walls which align front and back. For this reason, the direction of the side walls to be stacked is not assembled by mistake.

  In addition, the bottom side of the side wall has a bottom plate with the side wall side open and a bottom surface at the bottom, and the upper side of the side wall has a lid that can be opened and closed to accommodate the contents. For this reason, as for a housing | casing, an assembly frame body, a baseplate, and a cover body can be changed according to the number of the water and sewage installed in a housing | casing, the measuring instrument for electric power, telecommunication, or a valve body. For this reason, the housing can share the parts and can effectively use the space without taking a place during storage or transportation.

  The bottom plate has a hole to which a spacer that can be changed according to the contents can be attached. For this reason, a housing | casing can change the number of insertion parts only by changing (exchange) a spacer, and can respond easily to the change of the number of underground structures, such as a watering device accommodated in a housing | casing.

  The casing forms a side wall (assembly frame) by assembling a vertical wall (first wall) and a horizontal wall (second wall). For this reason, the place which conveys and stores the components which comprise a housing | casing can be minimized. In addition, the size of the housing can be easily changed by exchanging the vertical wall and the horizontal wall. For this reason, when housing structures such as water and sewage systems installed in the ground, power and telecommunications measuring instruments, and valve bodies, the size of the housing can be easily adjusted according to the number and size of the structures. You can change the size.

  The embodiment and the modification of the present invention have been described above. However, the embodiment and the modification are examples, and the addition, omission, replacement, and other modifications of the configuration are possible without departing from the spirit of the present invention. is there. Further, the present invention is not limited by the embodiment.

  1: casing, 2: lid, 4: assembly frame as side wall, 5: bottom plate, 21: vertical wall, 23, 43: protrusion, 32, 52: rib structure, 26, 46: hole, 41 : Horizontal wall, 49: Guide rib as a pressing part, 61: Root part, 62: Neck part, 63: Tip part, 65: Reverse-preventing concave part as a first reverse-preventing part, 66: Large hole part, 67: Small hole part, 70: Reverse-preventing convex part as a second reverse-preventing part, 71: First anti-protrusion protrusion as a first anti-detaching part, 72: Housing concave part, 73: Notch groove, 76: Second detachment prevention projection as second detachment prevention part, 80: heat insulating material, 81: upper inclined surface, 82: lower inclined surface

Claims (14)

A housing that forms a side wall with a plurality of plate-like vertical walls and a plurality of plate-like horizontal walls,
Forming one of a protrusion and a hole at one end of the vertical wall and forming the other of the protrusion and the hole at the other end;
One of the projections and the hole that engage with the other of the vertical walls is formed at one end of the horizontal wall, and the one of the vertical walls is engaged with the other end. Forming the other of the protrusion and the hole,
The vertical wall and the horizontal wall are connected to each other by the engagement of the protrusion and the hole to constitute the side wall,
The protrusion is formed with a first reverse-prevention portion, and the hole portion is formed with a second reverse-prevention portion that can be engaged with the first reverse-prevention portion on the front surface side and the back surface side, respectively. A housing to be used. The protrusion has a base part protruding from the end part, a neck part formed narrower than the base part, and a tip part formed thicker than the neck part,
The housing according to claim 1, wherein the hole portion includes a large hole portion capable of accommodating the root portion and a small hole portion capable of accommodating the neck portion.   The housing according to claim 2, wherein the first reverse rotation preventing portion is formed at the base portion, and the second reverse rotation preventing portion is formed at the large hole portion.   4. The first detachment preventing portion is formed on the protrusion, and the second detachment preventing portion engageable with the first detachment preventing portion is formed on the hole. 5. Enclosure. The protrusion has a base part protruding from the end part, a neck part formed narrower than the base part, and a tip part formed thicker than the neck part,
The hole portion has a large hole portion that can accommodate the root portion, and a protruding portion that forms a small hole portion that can accommodate the neck portion,
Forming a first detachment preventing portion on the protrusion, and forming a second detachment preventing portion engageable with the first detachment preventing portion on the hole;
The second detachment preventing portion is formed to protrude on the front surface side and the back surface side of the protruding portion, respectively.
The first disengagement preventing portion is configured to protrude toward the base end side of the protrusion, claim 1 proximal end side of the protrusion forming the accommodation recess for accommodating the second disengagement preventing portion The enclosure described.   The casing according to claim 4 or 5, wherein the protruding portion is formed with a notch groove that is elastically deformed when the first detachment preventing portion and the second detachment preventing portion are in contact with each other.   5. The lower side inclined surface that comes into contact with the second release prevention unit during assembly and the upper side inclined surface that comes into contact with the second release prevention unit during disassembly are formed in the first release prevention unit, respectively. The housing | casing as described in any one of thru | or 6.   The housing according to any one of claims 1 to 7, wherein the hole portion is formed with a pressing portion that presses the protruding portion engaged with the hole portion inward.   The casing according to any one of claims 1 to 8, wherein the vertical wall and the horizontal wall have a front surface and a back surface formed in different shapes.   The casing according to claim 9, wherein the vertical wall and the horizontal wall form a rib structure capable of holding a heat insulating material on either the front surface or the back surface.   The case according to claim 1, wherein the side wall can be stacked in the vertical direction.   The casing according to claim 11, wherein the side walls have a combination-preventing unevenness capable of stacking the side walls that align the front and back sides.   The bottom side of the side wall has a bottom plate with the side wall side open and a bottom surface at the bottom, and the top side of the side wall has a lid that can be opened and closed to accommodate the contents. The housing | casing as described in any one of thru | or 12.   The housing according to claim 13, wherein the bottom plate has a hole to which a spacer that can be changed according to the contents can be attached.

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