JPH11210933A - Support for underground buried pipe - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily interconnect pipes in the field by providing a projection extending in the thickness direction on one side surface grabbing a recessed part and a groove extending in the thickness direction on the other side surface so that the projection and the groove can be engaged, and forming the cross section of the recessed part in the circular arc shape to use the recessed part as an accommodating part of a buried pipe. SOLUTION: This support has a structure that projections 2 and grooves 3 on its side surface are inter-engageable in the thickness direction 6, and cross section of a recessed part 4 at upper part in the thickness direction is set in circular arc shape, and a space formed by the recessed part 4 and a recessed part 5 is used as an accommodating part of a buried pipe. The projections 2 are provided on one side surface and the grooves 3 are provided on the other side surface. A notch 8 on the top of the end of a projection 7 formed between two grooves 3 is provided, and a stopper 10 is provided at the end of trough 9 formed between two projections 2. When the support 1 is connected with other support, the stopper 10 is engaged into the notch 8. Therefore, the field work completion is recognized easily.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an underground pipe support.

[0002]

2. Description of the Related Art Gas pipes are often buried underground, but recently transmission lines have also been buried underground. In this case, the power transmission line is buried in the ground through the conduit and protected by the conduit. When the conduit is buried in the ground in this way, it is rare that only one conduit is buried, and in many cases, a plurality of conduits are buried side by side. In the case where a plurality of conduits are buried side by side, the plurality of conduits are combined at some places and fixed so as not to move mutually. What is used for this fixation is an underground pipe support.

The underground pipe support used so far is, for example, as shown in FIG. The support tool shown in FIG. 3 has a structure in which an upper surface is provided with a plurality of depressions having an arc-shaped cross section capable of accommodating an underground pipe, and a lower surface is also provided with a plurality of similar depressions. Place this support at the bottom of the trench dug in the ground, put a conduit in each dent, arrange the pipes, and place the support on top of it if necessary. The supports were stacked in two stages, and thereafter, one tube was similarly placed in each depression, and thus a plurality of tubes were used side by side. Then, necessary measures such as passing electric wires through the pipe were taken, and then the pipe was buried underground.

[0004] The support shown in Fig. 3 is made as having three recesses, and is therefore suitable for embedding three pipes. Requires wasteful materials and labor. For example, a very wide groove must be dug in order to install the support, so that the labor for dug the groove is wasted. On the other hand, when burying two pipes, it is conceivable to cut the support and remove one dent, but since the support is made of concrete or plastic, cutting is easy. Not. Further, the support of FIG. 3 causes the same waste when four pipes are buried. Therefore, the support shown in FIG. 3 is not convenient to use.

In order to solve the inconvenience, it is conceivable that a specific number, such as one, two, three, etc., may be prepared separately in advance. However, in order to produce these various kinds of products, it is necessary to prepare a molding die for producing them, so that a large amount of cost is required for production. It is also useless to prepare various items, carry them to the site, select and use necessary items, and bring back the remaining items. Therefore, this plan is not suitable for solving the above-mentioned inconvenience.

On the other hand, in order to solve the above-mentioned inconvenience, it is only necessary to prepare a support having one recess and connect the support at the site as necessary. Can be considered. However, the method of connection is problematic.
Because after this support buried it in the ground,
The connection must be strong because people walk on it and vehicles come and go. On the other hand,
This is because, in order to make a connection on site, the connection must be made easily and reliably. Therefore, this connection is not easy.

[0007]

According to the present invention, a connecting part is integrally attached to a support for an underground pipe in advance, so that the support can be easily connected even in the field. An object of the present invention is to provide an underground pipe support that is firmly connected and does not separate.

[0008]

The inventor of the present invention has provided, on one of the side surfaces to be connected of a support for an underground pipe, a protrusion that projects laterally and extends in the horizontal direction over the entire side surface.
The other side to be connected is provided with a groove that opens to the side and extends in the horizontal direction over the entire side, and has a simple structure that allows the protrusion and the groove to be fitted. We found that we could solve it. The present invention has been completed based on such knowledge.

According to the present invention, there is provided a depression which penetrates in the thickness direction at an upper portion, a projection extending in the thickness direction on one side surface sandwiching the depression, and a groove extending in the thickness direction on the other side surface. And a support for an underground buried pipe, wherein the cross section of the dent is formed in an arc shape and the dent is used as an accommodation portion for the buried pipe.

In the above-mentioned underground pipe support, two identical supports are arranged, the front faces facing each other in the thickness direction are displaced from each other, and the end of the projection of one of the supports is attached to the other of the supports. By simply inserting the support into the end of the groove and then moving one of the supports relative to the other in the thickness direction, the supports can be easily connected to each other.

[0011] In the above-mentioned support device, the projection is made thicker,
By making the groove wider, the connection between the supports can be further strengthened.

In the above-mentioned support, the wall surface forming the projection and the wall surface forming the groove are slightly inclined in the thickness direction relatively, and the width of the projection and the groove width are changed in the thickness direction. By slightly expanding or narrowing along, it can be easier to insert the end of the projection into the end of the groove early in the connection.

Further, when the width of the projection or the width of the groove is increased or decreased as described above, the direction in which the width of the projection or the width of the groove is oriented in the same direction between the projection on one side and the groove on the other side. Is preferred. This is because, in this way, when the supports having the same shape are successively connected, the supports can be connected by always moving the connected supports in the same direction.

[0014]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, an embodiment of the present invention will be specifically described with reference to the drawings. In the drawing,
FIG. 1 is a perspective view of an underground pipe support according to the present invention. FIG. 2 is a perspective view of another underground pipe support according to the present invention. FIG. 3 is a perspective view of a conventional underground pipe support. FIG. 4 is a perspective view showing a state of use of the underground pipe support shown in FIGS. 1 and 2. FIG.
FIG. 3 is an enlarged sectional view of a water-permeable hole portion in the underground pipe support shown in FIGS. 1 and 2. FIG. 6 is a perspective view of the underground pipe support shown in FIG. 2 when viewed from below.

In FIG. 1, 1 is an underground pipe support according to the present invention, 2 is a projection provided on one side, 3 is a groove provided on the other side, and 4 is a groove provided on the other side. A depression provided in an upper portion, 5 is a depression provided in a lower portion, and 6 is a thickness direction of the support 1. The underground pipe support 1 is provided with a depression 4 penetrating in the thickness direction 6 at an upper part, a projection 2 extending in the thickness direction 6 on one side surface sandwiching the depression 4, and a thickness direction 6 on the other side surface. An extending groove 3 is provided so that the projection 2 of the other support and the groove 3 can be fitted to each other.
The space created by the above is used as an accommodation part for the buried pipe.

The number of the protrusions 2 and the number of the grooves 3 may be one, but it is preferable that the number is two or more as shown in FIG. In addition, it is desirable to provide only one depression 4 in one support, but a plurality of depressions may be provided.

The underground pipe support 1 shown in FIG. 1 is slightly modified in addition to the above-described structure. One of the changes is that a notch 8 is provided at the tip of the end of a protrusion 7 formed between two grooves 3, and a valley formed between the other two protrusions 2. 9 is provided with a stopper 10 at the end. The above-mentioned notch 8 is convenient because, when connecting the support 1 to another support having the same structure, the stopper 10 is fitted into the notch 8 so that the completion of the fitting can be known.

The second modification of the support 1 shown in FIG. 1 is that the projection 2 is thick and the groove 3 is wide. It is preferable that the protrusion 2 and the groove 3 complement each other when the protrusion 2 is fitted into the groove 3 so that there is no gap between the tapered shape and the wide bottom shape.

A third modification of the support 1 shown in FIG. 1 is that the width 11 of the projection 2 is slightly widened or narrowed along the thickness direction 6 of the support 1, while ,
The point is that the width 12 of the groove 3 is slightly widened or narrowed along the thickness direction 6. By doing so, as described above, at the beginning of the connection between the supports 1,
It becomes easy to insert the projection 2 into the groove 3.

The fact that the change in the protrusion width 11 and the groove width 12 is extremely small means that the angle at which the wall surfaces 13 on both sides of the protrusion and the wall surfaces 14 on both sides of the groove are inclined with respect to the thickness direction 6 is examined. Then it is clear. For example, when the projection width 11 narrows in the thickness direction 6, the wall surfaces 13 intersect at the tip of the narrowing direction, and the intersecting angle is 5 degrees or less, preferably 3 degrees or less. Similarly, when the groove width 12 is reduced in the thickness direction, the intersection angle formed by the wall surface 14 is 5 degrees or less, preferably 3 degrees or less. As described above, since the change in the protrusion width 11 and the groove width 12 is extremely small, the support 1 looks like having a substantially uniform cross section.

As described above, when the projection width 11 and the groove width 12 are increased or decreased in the thickness direction 6, the direction in which the projection width 11 extends and the direction in which the groove width expands in one supporting tool are the same. It is preferred that it be turned. In this way, when another support having the same structure is sequentially connected from one to the next, the other support can always be moved from the same direction and connected.

The underground pipe support shown in FIG. 1 is provided with an arc-shaped depression 5 also in the lower part. However, the support according to the present invention has a circular lower part as shown in FIG. Instead of providing the arc-shaped depression, the arc-shaped depression 4 may be provided only in the upper portion. The support 1 'shown in FIG. 2 is different from the support 1 shown in FIG. 1 only in that the lower part has a flat surface 15 parallel to the thickness direction 6, and the projection 2 and the groove 3 are formed. 1 and the relationship in which the notch 8 and the stopper 10 are formed are the same as those in FIG.

If the locking projection 16 and the locking recess 17 are provided on the flat surface 15 of the support 1 'of FIG. There is.

The underground pipe support shown in FIGS. 1 and 2 has two trapezoidal depressions 18 in which the outer periphery of the depression 4 is depressed at both ends in the thickness direction 6. A thin wall is formed at an intermediate point in the direction, and a water permeable hole 19 is formed in this wall. The permeation hole 19 is for letting rainwater flow to the other side when rainwater or the like accumulates in one of the supports.

FIG. 5 is an enlarged sectional view of the water permeable hole 19. The water permeable hole 19 is a collection of many small holes that allow water to pass through but not earth and sand. One water permeable hole is a through hole having a diameter of about 3 mm.

The underground pipe support shown in FIGS. 1 and 2 can be made of cement, but is preferably made of synthetic resin. Among them, it is preferable to reuse and collect polyolefins such as polyethylene and polypropylene, and synthetic resins used in large quantities such as polyvinyl chloride and polystyrene.

The underground pipe support shown in FIG. 1 or 2 is used as shown in FIG. To illustrate its use, the first step is to dig the soil and a trench wide enough to lay the required number of pipes. A plurality of supports 1 ′ having the same shape are arranged at the bottom of the groove with the depression 4 facing upward, and the supports 1 ′ are connected to each other by fitting the protrusions and grooves between the adjacent supports 1 ′. Thereafter, the pipes x to be buried in the ground are put in the depressions of the supports, and the pipes x are mutually fixed by the supports 1 '.

If there are three tubes x to be buried, for example, three supports 1 'are arranged at the bottom of the groove, and adjacent supports are connected to each other as described above. It suffices to extend in the width direction and simply insert the tube x into each support 1 '. After that, soil is put on this, backfilled and the pipe is buried underground.

The number of pipes x to be buried is further increased. For example, it becomes necessary to bury nine pipes x, and the pipe x is placed on the ground.
If you can't afford to lay 9 in a row,
The tube x is embedded in a plurality of upper and lower stages. For example, as shown in FIG. 4, three tubes x arranged side by side and fixed with a support 1 'are arranged at the bottom. The three supports 1 are placed thereon, the supports 1 are connected to each other in the same manner as described above, the tubes x are put in the recesses of the respective supports, and the spaces between the tubes are fixed by the supports 1. . The object fixed in this way is arranged in the middle stage. Further, the three supports 1 are placed thereon, and the tubes x are fixed by the supports 1 in the same manner, and the three tubes x are arranged on the upper stage. After that, the soil is covered from above, backfilled and the pipe is buried underground. The underground pipe support according to the present invention is used in this manner.

[0030]

According to the present invention, as a support for an underground pipe, a recess penetrating in the thickness direction is provided at an upper portion, a projection extending in the thickness direction is provided on one side surface sandwiching the recess, and a support is provided on the other side surface. Since a groove extending in the thickness direction is provided and a protrusion and a groove can be fitted to each other, the underground pipe support having the same structure is successively connected by fitting the protrusion and the groove. Can be. Moreover, the connection can be made simply by shifting the support in the thickness direction, so that it is easy and suitable for on-site connection. In addition, a series of supports having a necessary number of depressions can be easily formed by such connection. As a result, the pipe can be buried underground without waste by preparing only one type of support. In addition, since a series of supports connected in this way have a horizontal engagement direction of the projection and the groove, the connection is not released even when pressure is applied from the ground. Further, since the depression is provided on the upper part of the support and the cross section of the depression is formed in an arc shape, the tube to be embedded can be easily and reliably supported by dropping the tube to be embedded into the depression. The underground pipe support according to the present invention provides such advantages.

Further, if the projection is made thick and the groove is widened, the connecting portion will not come off even if a horizontal force is applied between the projection and the groove on the support to separate the projection and the groove. The support can be used stably for a long time.

Further, the wall surface forming the projection and the wall surface forming the groove are relatively inclined in the thickness direction, and the width of the protrusion and the width of the groove are increased or decreased along the thickness direction of the support. Then, by selecting the projection end on the narrow side or the groove end on the wide side and inserting the projection from the end into the groove, the initial insertion can be facilitated.

Furthermore, if the direction in which the width of the protrusions is widened and the direction in which the groove width is widened are in the same direction, the connection can be made from the same side with the support tool facing in the same direction. It will be easier. The present invention provides such benefits.

[Brief description of the drawings]

FIG. 1 is a perspective view of an underground pipe support according to the present invention.

FIG. 2 is a perspective view of another underground pipe support according to the present invention.

FIG. 3 is a perspective view of a conventional underground pipe support.

FIG. 4 is a perspective view showing a state of use of the underground pipe support shown in FIGS. 1 and 2;

FIG. 5 is an enlarged sectional view of a water-permeable hole portion in the underground pipe support shown in FIGS. 1 and 2;

FIG. 6 is a perspective view of the underground pipe support shown in FIG. 2 when viewed from below.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Underground pipe support 2 Projection 3 Groove 4, 5 dent 6 Thickness direction of underground pipe support 7 Projection 8 Notch 9 Valley 10 Stopper 11 Projection width 12 Groove width 13, 14 Wall 15 Flat surface 16 Lock Projection 17 Locking recess

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Noriyoshi Tanaka, Inventor Kondo Kagaku Kogyo Co., Ltd. 2-4-2 Tamazuki-cho Higashi-Osaka, Osaka Prefecture No. 2 in Kondo Chemical Industry Co., Ltd.

Claims (4)

[Claims] 1. An indentation penetrating in the thickness direction is provided in an upper part,
A projection extending in the thickness direction is provided on one side surface sandwiching the depression, and a groove extending in the thickness direction is provided on the other side, so that the projection and the groove can be fitted together. Underground buried pipe support, used as a housing for buried pipes. 2. The underground pipe support according to claim 1, wherein the protrusion has a tapered shape and the groove has a wide bottom. 3. The wall surface constituting the projection and the wall surface constituting the groove are relatively inclined in the thickness direction, and the width of the projection and the width of the groove are increased or decreased along the thickness direction of the support. The underground pipe support according to claim 1 or 2. 4. The underground pipe support according to claim 3, wherein the direction in which the width of the protrusions increases and the direction in which the width of the grooves expands are in the same direction.