JPH042223Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a fixture for drain pipes and water intake pipes buried underground.

[Conventional technology]

There have traditionally been various types of underground pipes, such as drainage pipes for sewage and drainage pipes for agricultural culvert drainage pipe construction sites, but recently, long synthetic resin drainage pipes have been particularly frequently used. It has become like that. This type of drainage pipe has a corrugated outer wall and a smooth inner surface, so-called double-walled corrugated pipes, and although the inner and outer walls of this pipe are extremely thin and lightweight, It has strong earth pressure resistance, has a smooth inner surface for good water flow, and has sufficient flexibility, so even long items can be rolled up and transported, making it convenient to carry. It is. However, due to its flexibility, the following problems arose.

[Problems that this invention attempts to solve]

FIG. 5 shows a cross-sectional view during construction for burying a conventional culvert drainage pipe. In FIG. 5, a large number of crushed stones 3 are scattered around the drain pipe 1 in the groove 2.
When the pipe 1 is laid in the trench, it is in a substantially straight shape to pull both ends of the drain pipe 1, but when sand, pebbles, crushed stones, soil, etc. are poured into both sides of the pipe from above, ,
The pipe winds to the left and right as shown in Figure 5. Furthermore, if the pipes were backfilled with soil in such a state, there was a problem in that the water flow was poor and the pipes were easily clogged with earth and sand due to the poor flow of water. Furthermore, the longer the length of the tube, the greater the tendency to meander. Therefore, when burying a long drainage pipe, it was necessary to straighten the meandering drainage pipe within a narrow trench by rectifying the curved parts and backfilling with soil, which took a lot of time. . In particular, long pipes do not require pipe joints, which saves the effort of connecting the pipes. Although it has the advantage of saving labor and simplifying and shortening the construction time, such as there being no fear of the joint coming off, it has the problem that it tends to meander during construction.

[Means for solving problems]

In order to solve the above-mentioned problems, the present invention provides a fixture for fixing a drain pipe that tends to meander once it is placed in a groove.

That is, the present invention provides a pipe comprising a half-cylindrical holding part formed along the upper surface of the pipe wall of an underground pipe, and a pile-shaped leg part provided downward from the circumferential end of the holding part. It provides a fixing device.

[Effect]

The pipe fixing device of the present invention is used when constructing underdrain drainage pipes, etc. by placing the pipe in a straight line at the bottom of a deeply dug trench, pressing the top surface of the pipe wall with a half-cylindrical holding part, and By driving the stake-shaped legs provided at the circumferential ends into the soil, the pipe is prevented from moving from side to side, so even if sand, pebbles, etc. are casually dropped from above, the pipe will not move. It does not meander easily.

〔Example〕

FIG. 1 is a perspective view showing an embodiment of the present invention, in which 10 is a fixture and 11 is a half-cylindrical holding portion. The circumferential end 13 of the holding part 11 has long legs 12, 12'. The legs 12, 12' extend vertically downward with respect to the holding part 11, and their tips 22 are sharply pointed so as to fit into the hard ground of the groove bottom.

The fixture 10 is preferably made by injection molding of synthetic resin such as high-density polyethylene or polyvinyl chloride, but it is not necessarily limited to synthetic resin and can also be made of metal such as aluminum, iron, stainless steel, etc. It is. FIG. 2 is a front view showing another embodiment of the fixture of the present invention. In this fixture, the holding part 11 has irregularities along a corrugated pipe having peaks and valleys. Also,
The holding part 11 is molded from a thick synthetic resin, and at this time the iron legs 12 are integrated into the holding part 11 by insert molding.

FIG. 3 shows only the leg portion 12 of the embodiment shown in FIG. 2 taken out. A retainer 23 is provided at the upper end of the leg 12. This is because the head of the leg part 12 is large even if the holding part 11 is strongly pressed from above or hit with a hammer or the like.
There is no chance of breaking through the inner wall of 1 and getting out. FIG. 4 shows a bottom view of the fixture 10 of FIG. The back surface of the holding portion 11, that is, the surface that comes into contact with the tube, is an uneven surface that fits into the tube wall. Further, the fixture 10 has a pair of legs 12, and it is preferable that the legs 12 are attached at approximately the center of each end 13 of the holding part 11. . As for the number of legs 12, it is sufficient to attach one leg to each end 13 of the holding part 11, but if the leg 12 is large and long, just one leg at one end will function satisfactorily. be. Further, the shape of the leg portion 12 is not particularly limited as long as it functions as a stake, such as a rod shape or an inverted triangular plate shape.

FIG. 5 shows how the fixing device of the present invention is used, and 100 is a corrugated pipe that is usually used as a drain pipe or the like. According to this figure, fixture 1
0 or the corrugated pipe 100 is constructed so as to fit exactly along the upper outer wall surface of the corrugated pipe 100, and the legs 12 are buried in the ground, so that the corrugated pipe 100
is securely fixed in place.
After construction, the fixture 10 is directly buried underground together with the corrugated pipe.

[Effect of idea]

The fixing device of this invention has a half-cylindrical holding part, so it can press the tube with a surface without straining, so even if you press with strong force, the tube will not be partially dented.
It does not deform and has stake-shaped legs at the circumferential ends, so the pipe is not only fixed by the holding part, but also meandering left and right by the legs. This has the effect of preventing

Since no meandering occurs in the underdrain drainage pipe, etc., work efficiency is improved, construction time can be shortened, and an excellent effect can be obtained that eliminates the conventional drawbacks when constructing long underground pipes. Furthermore, the fixing device of the present invention has a simple structure, so it has the advantage that it can be manufactured in large quantities at low cost.

[Brief explanation of the drawing]

FIG. 1 is a perspective view of a fixture showing an embodiment of the present invention, FIG. 2 is a front view of a fixture showing an embodiment of the present invention, and FIG. 3 is a front view of the leg used in FIG. Fourth
The drawings are a bottom view of the fixing device shown in FIG. 2, FIG. 5 is a perspective view showing how the fixing device of the present invention is used, and FIG. 6 is a sectional view showing a conventional example. 10... Fixing tool, 11... Holding part, 12...
leg.

Claims (1)

[Scope of utility model registration request] A pipe fixture comprising a half-split cylindrical holding part formed along the upper surface of a pipe wall of an underground pipe, and a stake-shaped leg provided downward from the circumferential end of the holding part.