JPS6329034Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a support frame for holding in a predetermined posture a drainage pipe constructed as a temporary gutter or the like in a residential development site.

For example, when constructing a temporary gutter for zoning on a residential land, a drain pipe 100 as shown in Fig. 1 is buried in a groove formed in the ground, and the drain pipe 100
Drainage may take place through internal passages.
However, a polygonal cylinder with an open top surface, such as the drainage pipe 100 shown in the same figure, has a flat bottom, so it is stable when installed in a trench during construction, but when used in actual use. There was a problem in that soil and sand tended to accumulate in the corner portion 101 of the internal passageway, and the drainage performance was apt to be impaired by the soil and sand.

Therefore, the semi-cylindrical drain pipe 100 shown in FIG.
It is possible to use . According to this semi-cylindrical drainage pipe 100, the ease with which dirt and sand accumulate in the internal passage during actual use is improved to some extent compared to the one in Fig. There have been complaints that not only is the drainage pipe 100 lacking in stability when installed inside, but also that the drain pipe 100 tends to float up when it is backfilled with soil, reducing workability during construction.

In addition, we have developed a drain tube with a shape that gradually reduces the curvature of its inner surface as it approaches the bottom, such as a half-egg-shaped drain tube, which can greatly improve the ease with which dirt and sand accumulate in internal passages during actual use. It is also possible to use However, according to this
There is a problem in that the stability when installed in a trench during construction is extremely inferior to that shown in FIG. 2, and workability is significantly reduced.

The present invention was developed in view of the above-mentioned problems, and is a support that can reliably hold semi-cylindrical drain pipes or half-egg-shaped drain pipes in a predetermined position, so that drainage performance during actual use is not impaired. The purpose of the present invention is to significantly improve workability during construction by providing a frame, and to enable easy construction of a drainage pipe with good drainage performance.

To achieve this purpose, the support frame of the present invention is
A pair of left and right supports are provided in a rising shape on a flat bottom plate, and engaging portions are provided on each of these supports, and these engaging portions are engaged with the left and right ears provided on the drain pipe. Therefore, by holding the support frame in the drain pipe and installing the drain pipe in the trench in this state, the stability of the drain pipe can be ensured by the support frame, and the drain pipe can be secured when backfilling with soil. The supporting frame can prevent the floating part from lifting up.

Hereinafter, the support frame according to the present invention will be explained with reference to illustrated examples.

The support frame 10 shown in FIG. 3 has a pair of left and right plate-shaped supports 2, 2 standing upright on a flat bottom plate 1, and a semi-cylindrical support member 2, 2 at the upper end of these supports 2, 2. The engaging portions 3, 3 are provided over the entire length thereof.

Although such a support frame 10 can also be constructed by bending a thin metal plate,
The continuous molded product obtained by continuously extruding a thermoplastic synthetic resin such as polyvinyl chloride from an extrusion molding die can also be constructed by dividing into predetermined lengths. The latter, made of synthetic resin molded products, is superior to the former metal ones in terms of corrosion resistance and elastic restoring power, is lightweight and easy to handle, and also has a supporting frame with sufficient impact resistance. There are advantages to becoming

As is clear from FIG. 3, the above-mentioned support frame 10 is fitted into the drain tube 100 from below, and its engaging portion 3 is connected to the ear portion 111 provided on the drain tube 100.
is engaged in an elastically fitted state. Drain pipe 1
The ears 111 of 00 are provided on the left and right sides of the divided cylindrical member, and serve as reinforcing ribs to improve the rigidity of the drain tube 100. Note that although the ears 111 are shown as having a convex shape that projects outward, they may also have a concave shape that projects inward, and in the latter case, the support frame 10
It is necessary to make the engaging portion 3 of the holder protrude inwardly.

When the support frame 10 is held in the drain pipe 100 as shown in FIG. 3, the pair of supports 2, 2 of the support frame 10 is in a state of being expanded somewhat against its elasticity. Therefore, the engaging portion 3 of the support frame 10 is elastically pressed against the ear portion 111 of the drain pipe 100, and a reliable engaged state is obtained. In this case, if the drain tube 100 is a synthetic resin molded product, a pressing phenomenon will occur between the elastic restoring force of the drain tube 100 deformed by the pressure and the elastic restoring force of the supports 2, 2, as described above. This makes the engaged state even more reliable.

When using the drain pipe as a temporary side gutter, for example, the construction involves holding the support frame 10 as shown in Fig. 3, installing the drain pipe 100 in a groove formed in the ground, and then filling the groove back with soil. This is done depending on the situation. At the time of construction, when the drain pipe 100 is installed in the groove, the flat bottom plate 1 of the support frame 10 is seated over a wide area on the bottom surface of the groove, so this support frame 1
0, the stability of the drain pipe 100 is sufficiently ensured, and the drain pipe 100 does not tilt or wobble. Also, when backfilling soil into the trench, support frame 1
In addition to 0 having the shape of 〓 as shown,
Since the backfilled soil enters the space S formed between the support frame 10 and the drain pipe 100, the support frame 10 reliably prevents the drain pipe 100 from floating up, allowing construction to proceed as originally designed. easily done. Even if such a temporary gutter is to be removed after the house is built, only the drain pipe can be removed upward by slightly widening the support frame without creating a trench.

Ensuring the stability of the drain pipe and preventing it from floating during construction as described above is achieved by the action of the support frame held by the drain pipe.
The shape of the drain pipe is irrelevant. Therefore, when the drain tube 100 is constructed of a cylindrical member whose inner surface has a curvature that gradually decreases as it approaches the bottom, as in the drain tube 100 shown in FIG. , Even if the amount of drainage is small during actual use, the volume of water at that time will be high, so soil, etc. should be placed in the internal passages.
Temporary gutters can be easily constructed with good workability, and can maintain excellent drainage performance over a long period of time in that sand does not accumulate easily. Note that the support frame 10 is held at appropriate positions in the longitudinal direction of the drain pipe 100 at intervals.

In FIG. 3, a case has been described in which the support frame 10 is held at the longitudinally intermediate portion of the drain pipe 100, but the support frame can also be used as a joint of the drain pipe. That is, when two drain pipes 100, 100 are butted against each other to make their internal passages continuous as shown in FIG. This allows the support frame 10 to be held across.
In this way, the two drain pipes 100, 100
Since the respective ears 111, 111 of the support frame 10 are elastically held by the common engagement portion 3 of the support frame 10, a sufficiently strong connection is achieved.

In addition, when connecting two drain pipes as described above, one of the two drain pipes 100, 100, for example, the upstream drain pipe 100, is It is desirable to cut off the end of the ear portion 111 over a certain length, and fit the curved protruding piece 112 formed accordingly to the inner surface of the end of the drain tube 100 on the downstream side in an overlapping manner.

FIG. 6 shows another embodiment in which the support frame 10 is held in the drain pipe 100. That is, in the support frame 10 shown in FIG. 6, the left and right supports 2, 2 are raised up at positions slightly inserted from the left and right ends of the flat bottom plate 1. According to such a support frame 10, when the drain pipe 100 is installed in the trench and then the trench is backfilled with soil, the backfilled soil enters the space S between the support frame 10 and the drain pipe 100. Not only the left and right overhanging parts 1 of the bottom plate 1
1 and 11, the effect of preventing the drainage pipe 100 from floating becomes more pronounced than that described in FIG. 3. The other points are the same as those described with reference to FIG. Moreover, in addition to the divided cylindrical shape shown in the above embodiment as a drain pipe, a lid 12 as shown in FIG.
0 may be integrally molded into a cylindrical shape.
Furthermore, holes 12 may be drilled in the bottom plate 1 of the support frame 10, and fixing tools such as stakes may be driven into the bottom plate 1 to prevent lifting.

As described in detail above, when the support frame according to the present invention is used, it is possible to simultaneously improve the installation stability of the drain pipe during construction and prevent it from lifting when backfilling with soil. In other words, the use of the support frame improves the workability during construction regardless of the shape of the drain pipe, so it is possible to easily and accurately construct, for example, half-egg shaped or other drain pipes that lack installation stability but have excellent drainage performance. You will be able to do it.

[Brief explanation of the drawing]

FIG. 1 is a partial perspective view showing a polygonal cylindrical drain tube with an open top surface, FIG. 2 is a partial perspective view showing a semi-cylindrical drain tube, and FIG. 3 is a partial perspective view showing a support frame according to an embodiment of the present invention. FIG. 4 is a partial perspective view showing the case in which the support frame is also used as a joint; FIG. 5 is a vertical side sectional view showing the main part of FIG. 4; FIG. 6 is a partial perspective view showing a case where a support frame according to another embodiment is held in a drain pipe;
FIG. 7 is a partial perspective view showing a case where a support frame holds a drain pipe according to another embodiment. 1...Bottom plate, 2...Support body, 3...Engagement part, 1
0...Support frame, 100...Drain pipe, 111...Ear portion of drain pipe.

Claims (1)

[Scope of utility model registration request] This is a support frame for a drain pipe in which convex or concave ears are provided on the left and right sides of a cylindrical member, and a pair of left and right supports are provided in an upright manner on the bottom plate, and the drain pipe is attached to these supports. A support frame for a drain pipe, characterized in that an engaging part that can be fitted and removed from an ear part of the pipe is provided.