JPH0125832Y2 - - Google Patents

Description

[Detailed description of the invention] This invention relates to pipe supports, and is particularly applicable to drainage pipes, etc., and the above-mentioned oval pipes are used as supports used when burying various types of pipes, such as oval pipes with an oval cross section. We are trying to provide products that can be laid stably and have good workability.

Conventionally, so-called egg-shaped pipes, which have an oval cross-sectional shape with a narrower bottom, have been used as drainage pipes buried underground, water pipes, and other types of pipes. It has begun to be widely used as it has extremely superior drainage performance and strength.

However, in the case of the above-mentioned egg-shaped tubes, it is not only difficult to connect the tubes unless the vertical centering of the tubes is accurate especially when burying the tubes, but if the tubes are buried at an angle, the unique advantages of the egg-shaped tubes will occur during use. However, it also had the disadvantage of not being able to fully demonstrate its drainage performance, and of being weak in strength. Therefore, during burial construction, after accurately centering with water string, etc., temporarily fix it with wooden stakes or wire, or when backfilling, temporarily fix it partially with backfill sand, and then backfill the whole. The problem was that it required much more skill and effort to bury than conventional circular pipes.

In addition, even in the case of a normal circular pipe, the pipe tends to deform into an elliptical shape that is crushed vertically due to backfilling earth pressure or earth pressure applied by vehicles after backfilling, so the side surface of the pipe There were problems such as the need to thoroughly compact the backfill soil, and improvements were requested.

Therefore, in this invention, we developed a tube support body that was developed to enable easy and accurate burying of the above-mentioned egg-shaped tubes, etc. The structure is made entirely of synthetic resin foam, and it is made of a rectangular plate. A plurality of supporting parts are installed at appropriate intervals in the longitudinal direction on the shaped base part, and a concave part is formed in the center of the supporting part along the outer shape of the tube. The pipe is characterized in that it has a joint for connecting each other and an arcuate relief groove corresponding to the shape of the enlarged end of the pipe.

Next, embodiments of this invention will be illustrated below with reference to the drawings.

Reference numeral 1 denotes a tube support body, which is entirely made of a synthetic resin foam such as expanded polystyrene.

Of the support 1, 2 is a rectangular plate-shaped base, and 3 is a plurality of support parts erected at appropriate intervals in the longitudinal direction of the upper surface of the base 2;
Although the main support portion 3 is provided, the number of support portions 3 can be freely changed depending on the diameter and length of the oval tube, such as a case where four or more support portions 3 are provided.

A U-shaped recess 30 is formed in the center of the support 3 and follows the shape of the lower part of the cross-sectional outline of the oval tube.The oval tube P is inserted into this recess 30. I support it.

Note that 4 is two rows of support pieces provided on the base part 2 between the respective support parts 3, 3, which are formed so as to be able to follow both sides of the lower end of the oval tube P, like the above-mentioned support parts 3. This helps support the oval tube P by the support portion 3, and allows the oval tube P to be supported even more stably.

Next, a pair of dovetail joints 20, 20' are formed at both ends in the longitudinal direction of the base part 2, of which one end is a convex part 20' and the other end is a concave part 20. The supports 1, 1, . . . can be sequentially connected to each other in the longitudinal direction.

Furthermore, two steps of relief grooves 21 and 22 are formed in an arc shape in the upper surface of one end of the base portion 2, and these relief grooves 21 and 22 are formed when the oval tube P is supported. , the connecting joint enlarged part P provided at one end of the oval tube P is made to escape so as not to come into contact with the upper surface of the base part 2.

Furthermore, 23 is a through hole formed between the support part 3, the support piece 4, etc. in the base part 2, and the soil above and below the support body 1 is integrated through the through hole 23 during backfilling, which will be described later. Since this improves the stability, it is useful for fixing the support 1.

24 is a recess formed on the back surface of the base portion 2;
It is provided on the back side of the support part 3 so as not to penetrate to the top surface of the base, and if the recess 24 is filled with concrete, soil, etc., it will prevent the lightweight support part 1 from moving or lifting during construction, and the construction will be completed. (See Figure 2).

Further, 25 is also a recess formed on the back surface of the base portion 2, and this recess 25 is provided at the center in the longitudinal direction of the back surface of the base portion 2, and can be used in the same manner as the recess 24 described above.

The support body 1 can be manufactured by foam-molding the base part 2, the support part 3, the support piece 4, etc. separately and then joining them together, or by integrally molding the above-mentioned members 2, 3, 4, etc. at the same time. May be manufactured.

The total length of the base portion 2 of the support 1 is, for example, approximately 1 m 40 cm, including the joints 20 and 20' at both ends. 1 can be connected to correspond exactly.

Further, the overall length of the base portion 2, the shape of the concave portion 30 of the support portion 3, etc. shall be changed as appropriate depending on the standard dimensions such as the diameter and overall length of the oval tube P.

Further, when a circular tube is used as the tube, the shape of the concave portion 30 can be changed to a semicircle or the like, and the present invention can be applied as is, or various other shapes can be changed depending on the shape of the tube.

Next, the embedding of the oval tube P using the above-mentioned support 1 will be described.

First, the supports 1, 1...
... will be installed while sequentially connecting them. At this time, in order to prevent the support 1 from lifting up or moving, hook the upper end of the L-shaped fixture N onto the upper surface of the base 2 from within the through hole 23 of the base 2, and submerge it in the soil. to horizontally fix the support 1 to the bottom of the groove T (see Figures 3 and 4).

By inserting the oval tubes P, P... onto the supports 1, 1, which have been laid and fixed in this way, so that they are in close contact with each other along the concave portion 30 at the center of the support portion 3, the oval tubes P, P, etc. Positioning such as vertical centering is automatically determined.

Note that the oval tubes P and P are connected to each other at the joint portions p and p' at each end, as in the conventional case, and a support is attached to the enlarged portion p at one end of the oval tube P. 1
relief groove 21 formed at the longitudinal end of the base portion 2;
22 to correspond. Note that R is a rubber ring, which improves the airtightness of the joints p and p' (see Fig. 5).

After the oval tube P is laid as described above, if the groove T is backfilled with soil, the burial work is completed, and the support 1 also serves to protect the oval tube P after being buried.

According to this invention constructed as described above, the work of burying oval tubes, etc., which conventionally required a great deal of skill and effort, can be done easily and accurately by laying the support 1 in advance. It is something that

That is, by inserting the oval tube P along the concave part 30 formed in the center of the support part 3 installed upright on the support body 1, it is possible to perform the conventional centering work or temporary fixing with wooden stakes and wire. The work and effort is reduced, and even the egg-shaped tube P, which is particularly difficult to center, can be laid in a state where the vertical centering is always accurately matched.

Therefore, the work of connecting the pipes to each other is easy and can greatly contribute to improving the overall work efficiency.

In addition, since an arcuate clearance groove corresponding to the shape of the enlarged end of the tube is formed at the longitudinal end of the base, it is easy to connect the tubes at the joint at the end of the oval tube P, etc. It becomes something that can be done. In particular, the relief grooves 21 and 2 formed in the base portion 2 of the support body 1
By connecting the enlarged part p for a connecting joint such as an egg-shaped pipe P to 2, the enlarged part p such as an egg-shaped pipe P can escape so as not to come into contact with the upper surface of the base part 2, and the connection This eliminates the problem of the joint enlarged part p coming into contact with the top surface of the base and causing support during positioning work such as vertical centering, and supports the entire piping in a more uniform and stable state. Become.

Furthermore, even after burial, the support 1 protects the pipe in the soil and is effective in preventing the pipe from moving or deforming due to tread pressure or lateral pressure from the ground.For example, the oval pipe P has drainage performance. It becomes possible to fully exhibit various properties such as.

Furthermore, since the support body 1 is made up of a plurality of support parts 3 erected at intervals, when connecting a branch pipe, etc. to an oval tube, etc., the connection is made in the space between the support parts 3, 3. If you do this, you will be able to work freely and it will be convenient.

Furthermore, since the entire supporting body 1 is made of a synthetic resin foam, it is lightweight and easy to handle, and has excellent durability without worrying about rotting in the soil or loss of strength after being buried. In addition, it is possible to perform processing such as cutting or scraping a part of the support 1 as necessary at the construction site, and it has good workability.

In addition, at construction sites, pipes are usually stored stacked on square timbers arranged on a flat surface in advance, but if the pipes are exposed to the hot sun in the summer, the polyvinyl chloride resin used as the material will deteriorate. Soften,
There is a risk that the pipes will bend and deform due to their own weight, so in order to prevent this bending and deformation, it is necessary to stack the pipes with a roof, cover them with a tent, or spray water on them. However, according to the support of the present invention, simply by placing the support on a flat place and inserting the tube along the recessed part of the support, the tube is firmly supported along its outer shape. This prevents the pipes from bending and deforming, and as a result, there is no need to install a roof, cover with a tent, or spray water, even under the hot summer sun, and it also eliminates the need for square timbers for the frame. This has the effect of significantly improving work efficiency.

As described above, it is possible to simplify the burying work of various types of pipes, improve efficiency, provide a support body suitable for the burying work of oval pipes, which has been troublesome in the past, and improve various performance such as the drainage performance of the pipes. It has excellent practical value that allows you to make even more use of it.

[Brief explanation of the drawing]

The figures illustrate the embodiment of this invention, and Fig. 1 is a perspective view, Fig. 2 is a partial perspective view from the bottom, Fig. 3 is a sectional view when in use, and Fig. 4 is a perspective view. FIG. 5 is a cross-sectional view of the tube connection. 1...Support body, 2...Base part, 20, 20'...
...Joint part, 21, 22...Escape groove, 3...Support part, 30...Concave part, P...Pipe, p, p'...Joint part, N...Fixing fixture.

Claims (1)

[Scope of utility model registration request] The entire body is made of synthetic resin foam, and the rectangular plate-shaped base has a plurality of supporting parts erected at appropriate intervals in the longitudinal direction, and a recessed part that follows the outer shape of the tube is formed in the center of the supporting part. Further, the longitudinal end portion of the base portion is characterized by forming a mutual coupling joint portion and an arc-shaped relief groove corresponding to the shape of the enlarged end portion of the pipe. Tube support body.