JP3685979B2 - Raised structure of buried enclosure - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a structure for raising a buried housing for maintaining and checking underground buried facilities such as a water control valve.
[0002]
[Prior art]
In particular, underground pipes for supplying water, gas or electricity are buried in the basement of the city or its suburbs. These laying pipes are appropriately connected with control valves such as water control valves, connectors, breakers, etc., which are operated from the road surface, inspected and inspected, and further protected. Must be specified. For this purpose, a hollow enclosure with a hollow structure is installed in the ground. In the case of a manhole, a similar buried housing can be installed.
[0003]
As this type of buried enclosure, a hollow cylinder that is usually supported on a base embedded in the vicinity of an underground facility such as a control valve (water control valve etc.) and forms a space for accessing the control valve etc. inside. A lower cylindrical main body and a hollow cylindrical upper main body having a receiving frame for fitting and supporting an iron lid at the upper end, and the upper main body is screw-engaged with the lower main body. The thing of the structure connected so that thickness adjustment is possible (it can raise) is used.
[0004]
Since such a screw-engaged embedded housing can easily adjust the height position of the receiving frame portion with respect to the road surface simply by rotating the upper main body, the upper end surface (iron cover receiving frame at the time of embedding construction) Part) is adjusted to the same height as the road surface, or it is convenient to raise the upper body when the embedded housing sinks due to road load after being embedded (installed). Japanese Laid-Open Patent Publication No. 60-43537 is an example of a publicly known document disclosing a buried enclosure having such a configuration. In addition, in the above-mentioned screw-engaged embedded housing, there is a possibility that the upper body may rise due to the rotation of the upper body, in which case it is necessary to lower the upper body with respect to the road surface. For convenience, it is a structure for height adjustment, and thus includes a structure used for lowering (sinking) the upper body.
[0005]
[Problems to be solved by the invention]
However, in the conventional example of the embedded housing that connects the upper main body and the lower main body so that the height can be adjusted by screw engagement, the upper main body rotates with respect to the lower main body due to vibration or impact by a vehicle traveling on the road surface, The height of the upper body and the iron cover relative to the road surface may fluctuate. Therefore, when the height of the buried housing is fluctuated due to vibration or impact in the buried housing in which the upper main body and the lower main body are screw-engaged, a raised structure has been proposed that can adjust the height of the buried housing relative to the road surface, For example, Japanese Patent Publication No. 63-40898 can be cited as a document disclosing the raised structure of the buried casing.
[0006]
However, in the conventional structure for raising the embedded housing, concave holes for inserting jigs are formed at a plurality of positions facing each other across the diameter of the inner surface of the iron lid fitting frame of the iron lid receiving frame, and the upper portion is raised when raising the height. When rotating the main body, a plurality of claws of a jig with a handle are inserted into the concave hole, and the handle is configured to be rotated from the ground. There is a technical problem to be solved that it is necessary to insert the claw portion at the same time, the work is complicated, and the engagement (fitting) of the inserted portion is unstable, so that a quick and accurate raising work cannot be performed. there were.
[0007]
The present invention has been made in view of such a technical problem, and the object of the present invention is when the height of the embedded housing varies due to vibration, impact, etc. in a configuration in which the upper body and the lower body are screw-engaged. However, it is an object of the present invention to provide a buried housing raising structure that can easily and quickly and reliably adjust the height of the buried housing with respect to the road surface with a simple structure.
[0008]
[Means for solving problems]
In order to achieve the above object, the present invention provides a bottom seat in which a hollow cylindrical upper main body provided with an iron lid receiving frame portion that fits and supports an iron lid at the same height as a road surface is installed in the basement. In the raised structure of the embedded casing configured by screw engagement with the hollow cylindrical lower main body supported on the table, the diameter is opposed to the iron cover fitting inner peripheral surface of the iron cover receiving frame. A plate member having a predetermined width lower than the iron cover receiving surface is formed at a position where the plate member has an engagement hole for rotation driving at the center portion, and both ends thereof are fitted to the recess portion and placed. When a guard member having an opening in the part is placed on the iron lid receiving surface and the upper main body is rotated such as when it is raised, the shaft of the jig with handle is fitted into the opening of the guard member A driver part that is inserted through the tip of the jig with handle. It said plate member engaging hole fitted inserts with detent state of and adjusting the vertical position of the upper body by rotating operation of the handle with the jig from the ground.
[0010]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be specifically described below with reference to the drawings. FIG. 1 is a schematic longitudinal sectional view showing a state in which an iron lid of a buried housing having a raised structure to which the present invention is applied, and FIG. 2 is a schematic plan view of the buried housing of FIG. FIG. 3 is a schematic longitudinal sectional view showing a state in which the raising work is performed in the raising structure of the embedded housing to which the present invention is applied. 1 to 3, the upper part in the vicinity of an embedded device 11 such as a control valve (water control valve, gate valve, etc.) provided in the middle of a laying pipe 10 such as water, gas or electricity is made of concrete or brick. A pedestal 12 is embedded, and a hollow cylindrical lower main body 13 is supported on the pedestal 12. In the illustrated example, the lower main body 13 is installed in the ground by fixing a flange portion 21 formed at an intermediate height portion of its outer peripheral surface to the seat 12 with bolts or the like.
[0011]
A hollow upper body 16 is connected to the lower body 13 by screw engagement. That is, an external thread 17 is formed within a predetermined height from the lower end of the upper body 16, and an internal thread 15 is formed on the inner peripheral surface of the lower body 13. The screw 17 is screwed to the inner screw 15 so that the height can be adjusted (the vertical position can be adjusted) with respect to the lower body 13. The lower main body 13 and the upper main body 16 constitute an embedded housing, and the lower portion of the embedded housing forms a space 14 for housing equipment such as the water control valve 11.
[0012]
The upper end of the upper body 16 is substantially flush with the road surface 18, and an iron lid receiving frame 19 is formed at the upper end. An iron lid 20 is fitted and supported on the iron lid receiving frame 19 so as to be substantially the same height as the road surface 18 in a state where the iron lid 20 can be opened and closed (detached). Thus, the hollow cylindrical upper main body 16 provided with the iron lid receiving frame portion 19 that fits and supports the iron lid 20 at the same height as the road surface 18 at the upper end portion, that is, the embedded casing to which the present invention is applied, An embedded housing is configured to be screw-engaged with a hollow cylindrical lower main body 13 supported on a bottom seat 12 installed in the basement.
[0013]
That is, as shown in FIGS. 1 to 3, the outer periphery of the hollow cylindrical upper body 16 provided with an iron lid receiving frame portion 19 that fits and supports the iron lid 20 at substantially the same height as the road surface 18 at the upper end portion. An external screw 17 is formed on the surface, an internal screw 15 is formed on the inner peripheral surface of the hollow cylindrical lower main body 13 installed underground, and the external screw 17 is screw-engaged with the internal screw 15. An embedded housing is configured to adjust the height of the upper body by rotating the upper body 16. The upper main body 16 and the lower main body 13 have a cylindrical shape at least in the range of the screw engaging portions 15 and 17, but are limited to a cylindrical shape in other portions such as the iron lid receiving frame portion 19. Alternatively, various other cross-sectional shapes such as a rectangle or a polygon may be used.
[0014]
In FIG. 1 to FIG. 3, in the embedded housing composed of the lower main body 13 and the upper main body 16 that are screw-engaged so that the vertical position can be adjusted as shown in the figure, the iron lid 20 is embedded in the inner surface of the iron lid. It is connected through an iron lid connection structure (hinge mechanism) 30 having a connection member 33 provided between the inside of the housing (in the illustrated example, the inside of the upper main body 16). A jig engaging hole 41 is formed at a position (position on the opposite side in the diameter direction) of the iron lid 20 facing the iron lid coupling structure 30. The jig engagement hole 41 is opened by inserting and engaging the tip of an opening / closing jig (not shown) when opening and closing the iron lid 20, and lifting the iron lid and rotating it on the road surface. The iron lid that has been opened together is closed to its original state. With such a structure, an embedded housing is configured in which the iron lid 20 fitted and supported by the iron lid receiving frame portion 19 is connected by the connecting member 33 so as to be opened and closed.
[0015]
In the raising structure of the embedded housing to which the present invention is applied, as shown in FIG. 1 and FIG. 3, positions (two places) facing each other across the diameter of the iron lid fitting inner peripheral surface 42 of the iron lid receiving frame portion 19. A recess 44 that is lower than the iron cover receiving surface 43 by a predetermined height H is formed over a predetermined width W. When the upper body 16 is rotated, such as when it is raised, both end portions of the plate member 46 having a length that can be engaged in a state of being bridged to the opposing concave portions 44, 44 are fitted into these concave portions. The driver portion of the jig 47 with a handle is placed in the engagement hole 45 for rotational driving of a square shape (rectangular shape in the illustrated example) formed in the middle portion (usually the central portion) of the plate member 46. (Rotation drive part) 48 is inserted and fitted in a non-rotating state, and the vertical position of the upper body 16 is adjusted by rotating the jig 47 with a handle from the ground.
[0016]
Furthermore, in the raising structure according to the present invention, a guard member 50 is used for reducing (or preventing) deflection during use of the jig 47 with a handle. The guard member 50 is placed on the iron lid receiving surface 43 of the upper body 16 when raised. When the driver portion 48 of the jig 47 with the handle is engaged with the engagement hole 45 of the plate member 46 (when raising), the intermediate portion (usually the central portion) of the guard member 50 is An opening 51 into which the shaft portion 49 of the jig 47 with handle is inserted and fitted is formed. In other words, during the raising operation, the jig 47 with the handle is moved at two points (vertically in the vertical direction): a driver part 48 at the lower end part engaged with the plate member 46 and an intermediate part of the shaft part fitted into the guard member 50. By restricting (supporting) the position at two separated points), the jig 47 with handle is configured to reduce vibration during use.
[0017]
4 is a schematic longitudinal sectional view showing only the upper main body 16 in FIG. 3, FIG. 5 is a schematic plan view showing only the upper main body 16 in FIG. 3, and FIG. 6 is a plan view of the plate member 46. 7 is an end view as seen from line 7-7 in FIG. 6, FIG. 8 is a plan view of the guard member 50, and FIG. 9 is seen from line 9-9 in FIG. FIG. 10 is an exploded side view of the jig 47 with a handle. 4 and 5, recesses 44 lower than the iron lid receiving surface 43 are formed over a predetermined width at positions (two locations) opposite to each other in the diameter direction of the iron lid fitting inner circumferential surface 42 of the upper body 16. When the upper body 16 is rotated such as when it is raised, both end portions 52 and 52 of the plate member 46 as shown in FIGS. 6 and 7 are fitted into the concave portions 44 and 44 to be in a bridging state. A driver portion 48 of a jig 47 with a handle, that is, a rotational drive portion 48 having a cross-sectional shape corresponding to the cross-sectional shape of the engaging hole 45 is inserted and fitted into a rectangular engaging hole 45 formed in the center of 46. The upper body 16 is rotated by rotating the jig 47 with handle from the ground to adjust the vertical position.
[0018]
As shown in FIG. 10, the jig 47 with a handle is composed of two parts, a shaft portion 49 and a handle portion 53, and has an engagement hole (square hole) 54 formed at the center of the handle portion 53. By engaging with an engaging convex portion (convex portion having a square cross section) 55 formed at the upper end of the shaft portion 49, it can be assembled in a detachable manner with one touch. Further, the guard member 50 is formed of a circular flat plate member as shown in FIGS. 8 and 9, and the outer diameter thereof corresponds to the outer diameter of the iron lid receiving surface 43 of the upper body 16 (slightly smaller). An opening 51 is formed in the center portion, into which the shaft portion 49 of the jig 47 with handle is fitted and inserted. The guard member 50 is used by being placed on the iron lid receiving surface 43 when raised. When raising, the shaft portion 49 of the jig 47 with the handle is inserted and fitted into the opening 51 of the guard member 50, and the driver portion 48 at the lower end (tip) of the shaft portion 49 is engaged with the plate member 46. Engage with hole 45.
[0019]
In this state, the user can rotate the upper body 16 via the plate member 46 by rotating the jig 47 with the handle from the ground. FIG. 11 is a schematic longitudinal sectional view showing a state in which the upper main body 16 is raised with respect to the lower main body 13 by rotating the upper main body 16 using the jig 47 with a handle. That is, since the upper body 16 is screw-engaged with the lower body 13 fixed in the ground, it can be raised (raised) with respect to the ground by rotating in one direction and rotated in the opposite direction. By moving it, it can be lowered with respect to the ground. At that time, since the jig 47 with a handle is fitted and engaged with the plate member 46 and the guard member 50 at two positions in the vertical direction, the position can be regulated at two positions in the vertical direction. It is possible to prevent or reduce swinging (falling) or the like when the tool 47 is rotationally driven (used), and always raises the buried housing regardless of the structure of the buried housing and the environmental conditions at the time of raising. The work can be performed easily, quickly and reliably.
[0020]
According to the embodiment described above, the hollow cylindrical upper main body 16 provided with the iron lid receiving frame portion 19 that fits and supports the iron lid 20 at the same height as the road surface 18 at the upper end portion is installed in the basement. In the raised structure of the embedded housing configured to be screw-engaged with the hollow cylindrical lower main body 13 supported on the bottom seat 12, the iron lid fitting inner peripheral surface 42 of the iron lid receiving frame portion 19. A recess 44 having a predetermined width lower than that of the iron lid receiving surface 43 is formed at a position facing each other across the diameter of the plate member 46, and a plate member 46 having a rotation drive engagement hole 45 at the center is provided at both ends 52 of the plate member 46. When the guard member 50 having the opening 51 in the center portion is placed on the iron lid receiving surface 43 and is fitted to the recess 44, the handlebars are rotated when the upper body 16 is rotated, for example, when it is raised. The shaft portion 49 of the attached jig 47 is opened to the guard member 50. 51, and a driver portion 48 formed at the tip of the jig 47 with handle is inserted and fitted into the engagement hole 45 of the plate member 46 in a non-rotating state. Since the vertical position of the upper main body 16 is adjusted by rotating from the ground, the height of the embedded housing varies due to vibration, impact, etc. in the configuration in which the upper main body 16 and the lower main body 13 are screw-engaged. Even in this case, a structure for raising the buried housing that can adjust the height of the buried housing with respect to the road surface 18 with a simple structure can be provided easily and quickly.
[0022]
【The invention's effect】
As is apparent from the above description, according to the present invention, the hollow cylindrical upper body provided with an iron lid receiving frame portion that fits and supports the iron lid at the same height as the road surface is installed in the basement according to the present invention. In the raised structure of the embedded housing configured to be screw-engaged with the hollow cylindrical lower body supported on the bottom seat, the diameter of the inner surface of the iron lid fitting frame is set to the diameter of the iron lid fitting inner peripheral surface. A concave portion having a predetermined width lower than the iron lid receiving surface is formed at a position facing the sandwiched plate, and a plate member having an engaging hole for rotation driving at the center portion is placed with both end portions fitted into the concave portion. When the guard member having an opening at the center is placed on the iron lid receiving surface and the upper main body is rotated such as when it is raised, the shaft portion of the jig with handle is attached to the opening of the guard member. And is formed at the tip of the jig with handle. Since the river portion is inserted and fitted to the engagement hole of the plate member in a non-rotating state, and the vertical position of the upper body is adjusted by rotating the jig with handle from the ground, the upper body Even if the height of the embedded housing fluctuates due to vibration, impact, etc. in the configuration where the main body and the lower body are screw-engaged, the height of the embedded housing relative to the road surface can be adjusted easily, quickly and reliably with a simple structure. There is provided a structure for raising a buried housing that can be used.
[Brief description of the drawings]
FIG. 1 is a schematic longitudinal sectional view showing a state where an iron lid of a buried housing having a raised structure to which the present invention is applied is closed.
FIG. 2 is a schematic plan view of the embedded enclosure of FIG. 1 as viewed from line 2-2.
FIG. 3 is a schematic longitudinal sectional view showing a state in which the raising work is performed in the raising structure of the buried casing to which the present invention is applied.
4 is a schematic longitudinal sectional view showing only the upper main body in FIG. 3. FIG.
FIG. 5 is a schematic plan view showing only the upper main body in FIG. 3;
6 is a plan view of the plate member in FIG. 3. FIG.
7 is an end view taken along line 7-7 in FIG.
8 is a plan view of the guard member in FIG. 3. FIG.
9 is a side view taken along line 9-9 in FIG.
10 is an exploded side view of the jig with a handle in FIG. 3. FIG.
FIG. 11 is a schematic longitudinal sectional view showing a state in which the upper body is lifted using a jig with a handle.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 11 Embedded apparatus 12 Base 13 Lower main body 14 Equipment storage space 15 Inner screw 16 Upper main body 17 Outer screw 18 Road surface 19 Iron cover receiving frame part 20 Iron cover 30 Iron cover connection structure 33 Connection member 41 Jig engagement hole 42 Iron cover Fitting inner peripheral surface 43 Iron lid receiving surface 44 Recess 45 Engagement hole 46 Plate member 47 Jig with handle 48 Driver portion 49 Shaft portion 50 Guard member 51 Opening portion 52 Both ends (plate member)

Claims (1)

A hollow cylindrical lower part supported by a hollow cylindrical upper body with an iron lid receiving frame that fits and supports an iron lid at the same height as the road surface at the upper end, supported on a base seat installed in the basement In the raising structure of the buried housing configured by screw engagement with the main body,
A recess having a predetermined width lower than that of the iron lid receiving surface is formed at a position facing the diameter of the iron lid fitting inner peripheral surface of the iron lid receiving frame portion, and an engagement hole for rotational driving is formed in the center portion. A plate member having both ends thereof fitted in the recesses, and placed;
A guard member having an opening in the center is placed on the iron lid receiving surface,
The upper body such as during raising when rotating, as well as fitted through the shaft portion of the handle with the jig to the opening of the guard member, said driver portion formed on the distal end of the handle with the jig Inserted and fitted into the engagement hole of the plate member in a non-rotating state,
A structure for raising an embedded housing, wherein the vertical position of the upper main body is adjusted by rotating the jig with a handle from the ground.

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