JPH0589539U - Protective hat for drainage - Google Patents

Abstract

(57) [Summary] [Purpose] A protective hat for drainage basins that can withstand the load from an oblique direction and does not move laterally, and can fully protect the buried drainage pit against the load from the ground. [Structure] An annular pedestal ring 7 to be installed in the ground and a removable lid 9 are provided to engage and mount on the pedestal ring 7 to form a space above the rising pipe of the underground synthetic resin drainage basin. It consists of the protective hat main body 8 which is covered with the protective hat main body 8
The lower surface of the peripheral edge portion 11 has a detent protrusion 12 that protrudes from the lower surface of the pedestal ring 7.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a protective hat that is installed above a buried sewage mister, rainwater masu, or manhole (hereinafter referred to as "drainage masu") to prevent damage to the drainage mist due to the load from the ground. ..

[0002]

[Prior Art]

 The above-mentioned drainage basin is installed at the connection part of the drainage pipe buried in the ground, the bent part of the drainage pipe, the boundary of the site, or the drainage pipe at regular intervals.

In addition to large-sized drainage pits, drainage pits formed of synthetic resin have become widespread. However, the drainage basin made of synthetic resin has a limit in strength as compared with the drainage basin made of concrete, and when it is buried in a road with heavy traffic, there is a risk that the main body will be damaged by repeated load from the road surface. Yes, the load from the road surface will be drained. It will be necessary to take measures to prevent the load from directly applying to the body.

FIG. 4 is a cross-sectional view of an essential part showing an example in which a protective hat is installed on a drainage basin as a countermeasure.

The drainage basin 2 made of synthetic resin is composed of a drainage basin body 4 connected to an underground drainage pipe line 3 and a rising pipe 5 extending from the upper connection portion of the drainage basin body 4 to near the surface of the earth. .. An inner lid 6 is normally attached to the upper end opening of the rising pipe 5.

A protective hat 1 is installed above the drainage basin 2. The protective hat 1 forms an annular pedestal ring 7 that is embedded near the upper end of the rising pipe 5 concentrically with the center line of the rising pipe 5, and is mounted on the pedestal ring 7 to form a space above the rising pipe 5. The protective hat main body 8 is covered with the protective hat main body 8, and the lid 9 is detachably mounted on the protective hat main body 8. The protective hat 1 is installed so that the upper surface of the lid 9 coincides with the ground surface GL.

By installing the protective hat 1, the load from the ground, that is, the load of a vehicle running on the upper surface of the lid 9 is transmitted from the protective hat main body 8 to the pedestal ring 7 and is in contact with the lower surface of the pedestal ring 7. Received by the soil board, the underground drainage basin 2 is insulated from the load from the ground by the space between the rising pipe 5 and the protective hat 1.

[0008]

[Problems to be solved by the device]

 However, the above protective hat 1 is effective in dispersing the load from above into the ground, but the load from an oblique direction applied during construction, such as the body of the protective hat caused by road pavement work using a bulldozer, etc. The resistance force against the lateral pressing force applied to 8 is weak, so that the protective hat 1 moves laterally and the function of protecting the drainage basin 2 against the load from the ground surface is deteriorated. , The protective hat main body 8 that has moved to the inner lid 6 attached to the upper end opening of the rising pipe 5 approaches, the inner lid 6 cannot be opened and closed, and the inspection and maintenance of the inside of the drainage basin 2 and the drainage pipeline are impossible. I had a problem.

This invention was made in order to solve the above-mentioned problems of the prior art. It bears the load from an oblique direction and does not move laterally, and the buried drainage basin is loaded from the ground. The purpose of the present invention is to provide a protective hat for drainage and drainage that can sufficiently protect against.

[0010]

[Means for Solving the Problems]

 Therefore, the protective hat for drainage masts according to the present invention is provided with an annular pedestal ring to be installed in the ground and a removable lid, and is mounted on the pedestal ring to be mounted on the pedestal ring to stand up the drainage pipe in the ground. It is composed of a protective hat main body that forms a space above the pipe and covers it, and has a detent protrusion protruding from the lower surface of the pedestal ring on the lower surface of the peripheral edge of the protective hat main body. To achieve the above-mentioned purpose.

[0011]

[Action]

 With the above configuration, the load from the ground to the bottom is received by the body of the protective hat that forms a space above the rising pipe of the drainage mast, the pedestal ring, and the soil plate in contact with the lower surface of the pedestal ring. Due to the space formed above the riser pipe, that is, between the protective hat body and the riser pipe, the underground drainage is insulated from the load from the ground and is damaged by an excessive load. It can be prevented.

Further, since the detent protrusion provided on the lower surface of the peripheral portion of the protective hat main body protrudes from the lower surface of the pedestal ring, the lateral load of the load applied to the protective hat from an oblique direction is It is possible to prevent the protective hat body from moving laterally by being transmitted from the detent protrusion to the soil plate below the pedestal ring and being received.

[0013]

【Example】

 Hereinafter, a protective hat for drainage according to the present invention will be described by way of examples.

FIG. 1 is a cross-sectional view of an embodiment of the present invention, and FIGS. 2 and 3 are perspective views of essential parts of the embodiment. Portions that are the same as or correspond to those of the conventional protective hat are denoted by the same reference numerals, and duplicated description will be omitted.

The protective hat 1 for drainage masu of the present embodiment is detachable to an annular pedestal ring 7 installed in the ground, a protective hat main body 8 engaged and mounted on the pedestal ring 7, and a protective hat main body 8. The lid 9 is provided. The pedestal ring 7, the protective hat main body 8 and the lid 9 are made of concrete, synthetic resin, plastic (FRP) reinforced with glass fiber or the like, resin concrete or metal and have the required strength.

The pedestal ring 7 has an inner diameter larger than that of the rising pipe from the main body for drainage, has an annular thickness having a sufficient area and area for receiving a load from the ground surface and transmitting and supporting the load to the soil bed in contact with the lower surface. In addition, a step surface 10 for engaging and mounting the protective hat main body 8 is formed on the upper surface.

The protective hat main body 8 is placed by engaging with the step surface 10 of the pedestal ring 7, and has a peripheral portion 11 having a shape and strength for transmitting a load in the vertical direction. It comprises a detent protrusion 12 protruding from the lower surface and a top surface portion 13 for mounting the lid 9 at a position higher than the peripheral portion 11.

When the protective hat main body 8 is mounted on the pedestal ring 7, the detent protrusions 12 project from the lower surface of the pedestal ring, and the rising pipe of the synthetic resin drainage pit embedded with the lower surface of the top surface portion 13 is embedded. A space is formed between the and.

The detent piece 12 may be integrally formed of the same material as the protective hat body 8, integrally formed by inserting it as an insert into a molding die, or may be post-applied to the peripheral portion 11.

As shown in FIG. 2, the detent pieces 12 may be provided on the lower surface of the peripheral portion 11 in an annular shape that is continuous over the entire circumference, or may be divided into a plurality of pieces. It should have sufficient area and strength to prevent it from protruding beyond the bottom surface of No. 7 and entering the soil bed to prevent lateral displacement.

There is an example in which the pedestal ring 7 has a thickness of 50 mm, and the detent protrusions 12 have a protrusion of 5 mm to 100 mm from the lower surface of the pedestal ring 7, although it depends on the conditions of the installation location.

With the above configuration, the load from the ground to the bottom is such that the protective hat main body 8 covers and forms a space above the rising pipe of the synthetic resin drainage mast, to the pedestal ring 7, and to the lower surface of the pedestal ring 7. The drainage in the ground is received by the soil plate which is in contact with the ground and is insulated from the load from the ground by the space above the riser pipe, that is, the space formed between the protective hat body 8 and the riser pipe. Therefore, it is possible to prevent damage due to excessive load.

Further, since the detent protrusion 12 provided on the lower surface of the peripheral portion 11 of the protective hat main body 8 projects more than the lower surface of the pedestal ring 7, the lateral direction of the load applied to the protective hat 1 from the diagonal direction The load is transmitted from the detent protrusion 12 to the soil plate below the pedestal ring 7 and received, so that the protective hat main body 8 can be prevented from moving laterally.

[0024]

[Effect of the device]

 As explained above, according to the present invention, the load from the ground to the lower side is insulated from the load from the ground by the space formed above the rising pipe of the drainage masu. Therefore, it is possible to prevent damage due to excessive load.

Further, since the detent protrusions provided on the lower surface of the peripheral portion of the protective hat main body protrude more than the lower surface of the pedestal ring, the lateral load of the load applied from the diagonal direction does not move. The protective hat body can be prevented from moving laterally by being transmitted from one side to the soil floor below the pedestal ring and received.

That is, the load does not move and withstands the load from the diagonal direction applied during construction or the load from the road surface with a lot of traffic, and the buried drainage masu is not damaged by the above load. The original drainage function can be maintained.

[Brief description of drawings]

FIG. 1 is a sectional view of an embodiment.

FIG. 2 is a perspective view of a main part of the embodiment.

FIG. 3 is a perspective view of a main part of the embodiment.

[Fig. 4] Fig. 4 is a cross-sectional view of a main part of a conventional drainage gutter and a protective hat.

[Explanation of code] 1 Protective hat 2 Synthetic resin drainage 3 Drainage pipe 4 Drainage body 5 Standing pipe 6 Inner lid 6 Lid 7 Base ring 8 Protective hat body 9 Lid 10 Step surface 11 Peripheral portion 12 Detent piece 13 Top surface

Claims (1)

[Scope of utility model registration request] 1. A protection which comprises an annular pedestal ring to be installed in the ground and a removable lid, is engaged with the pedestal ring, and is mounted on the pedestal ring to form a space above the rising pipe of the drainage mound in the ground to cover it. A protective hat for drainage, comprising a main body of the hat, and a detent piece protruding from the lower surface of the pedestal ring on the lower surface of the peripheral portion of the protective hat body.