CN218757836U

CN218757836U - Drainage pressure inspection shaft

Info

Publication number: CN218757836U
Application number: CN202221567940.5U
Authority: CN
Inventors: 许靖航; 彭松; 周乃成; 张文生; 张嘉戌
Original assignee: Shanghai Urban Construction Municipal Engineering Group Co Ltd
Current assignee: Shanghai Urban Construction Municipal Engineering Group Co Ltd
Priority date: 2022-06-22
Filing date: 2022-06-22
Publication date: 2023-03-28
Anticipated expiration: 2032-06-22

Abstract

The utility model relates to a drainage pressure inspection shaft, including well room, pit shaft, inlet tube, outlet pipe and pressure cover plate, wherein the pit shaft sets up the top at the well room, the inlet tube with the outlet pipe sets up respectively the position of well room and with the well room constitutes the intercommunication, the pressure cover plate passes through rag bolt to be fixed on the step that the top position of pit shaft set up the top of pressure cover plate is provided with prevents subsiding the well lid, prevent subsiding the well lid with be provided with ponding discharge structure between the pressure cover plate. The utility model has the advantages that: the standardized design is adopted, so that the blank of a national standard diagram set drainage pressure inspection well can be made up, and the application is convenient; the outflow of pressurized water can be effectively avoided, and the environment pollution is avoided; during maintenance, the pressure cover plate can be conveniently detached only by opening the upper well cover, and a maintenance space is arranged below the cover plate according to a normal inspection well, so that personnel can conveniently clean and maintain the pressure cover plate; the whole structure is simple and safe, can be arranged under a roadway and is suitable for popularization.

Description

Drainage pressure inspection shaft

Technical Field

The utility model belongs to the technical field of municipal drainage engineering technique and specifically relates to a drainage pressure inspection shaft.

Background

The municipal drainage pipe network is used as an infrastructure of a city to undertake the rainwater and sewage discharge task of the city, and the inspection well is used as an important auxiliary structure of the drainage pipe network to play roles in bearing, overhauling and the like. According to the national standard, a pressure inspection well is arranged on the pressure pipeline. However, no corresponding drainage pressure inspection well is available in the current national standard atlas, and the existing drainage pressure inspection wells are various and have different defects, for example, when the pressure of some drainage pressure inspection wells is too high, the outflow of the pressurized water can occur, the environment is polluted, and the functions of some drainage pressure inspection wells are not complete, which brings great inconvenience to the operation of maintainers.

Disclosure of Invention

The utility model aims at providing a drainage pressure inspection shaft according to the not enough of above-mentioned prior art, carry out configuration optimization through the structure to the drainage pressure inspection shaft, realize that the function of drainage pressure inspection shaft is perfect, the going on of the drainage pressure inspection operation of being convenient for.

The utility model discloses the purpose is realized accomplishing by following technical scheme:

a drainage pressure inspection shaft is characterized in that: including well room, pit shaft, inlet tube, outlet pipe and pressure apron, wherein the pit shaft sets up the top of well room, the inlet tube with the outlet pipe sets up respectively the position of well room and with the well room constitutes the intercommunication, pressure apron passes through rag bolt to be fixed on the step that the top position of pit shaft set up the top of pressure apron is provided with prevents subsiding the well lid, prevent subsiding the well lid with be provided with ponding discharge structure between the pressure apron.

The top of pit shaft is provided with the well lid basis, prevent subsiding the well lid setting and be in on the well lid basis.

The accumulated water discharge structure comprises an accumulated water discharge pipe and a gravel filter layer, the accumulated water discharge pipe is arranged on the wall of the shaft between the anti-settling well cover and the pressure cover plate, and the gravel filter layer is arranged on the outer side of the accumulated water discharge pipe.

And waterproof sleeves are respectively arranged at the joints of the water inlet pipe and the water outlet pipe with the well chamber.

A flexible joint filling layer is arranged between the waterproof sleeve and the water inlet pipe and is embedded with joints through sealant, and a flexible joint filling layer is arranged between the waterproof sleeve and the water outlet pipe and is embedded with joints through sealant.

A flow groove is arranged in the well chamber and is connected with the water inlet pipe and the water outlet pipe.

The launder is arranged from the chamber bottom of the well chamber to the position of half of the pipe diameter of the water inlet pipe and the water outlet pipe.

And a plain concrete cushion layer is arranged at the bottom of the well chamber.

A ladder stand is arranged in the well chamber and close to the well shaft.

The utility model has the advantages that: the standardized design is adopted, so that the blank of a national standard diagram set drainage pressure inspection well can be made up, and the application is convenient; the outflow of pressurized water can be effectively avoided, and the environment pollution is avoided; during maintenance, the pressure cover plate can be conveniently detached only by opening the upper well cover, and a maintenance space is arranged below the cover plate according to a normal inspection well, so that personnel can conveniently clean and maintain the pressure cover plate; the whole structure is simple and safe, can be arranged under a roadway and is suitable for popularization.

Drawings

Fig. 1 is a plan view of the present invention;

FIG. 2 is a cross-sectional view of the present invention taken perpendicular to the direction of water flow;

fig. 3 is a cross-sectional view of the present invention parallel to the horizontal direction.

Detailed Description

The features of the present invention and other related features are described in further detail below by way of example in conjunction with the accompanying drawings to facilitate understanding by those skilled in the art:

as shown in fig. 1-3, the labels 1-15 are respectively shown as: the water-saving manhole cover comprises a water inlet pipe 1, a manhole chamber 2, a shaft 3, a pressure cover plate 4, a waterproof sleeve 5, a water outlet pipe 6, a settlement-preventing manhole cover 7, a manhole cover foundation 8, a launder 9, a plain concrete cushion layer 10, a ladder stand 11, foundation bolts 12, an accumulated water discharge pipe 13, a gravel filter layer 14 and an inspection manhole 15.

The embodiment is as follows: the drainage pressure inspection well in the embodiment can be applied to pressure drainage pipelines such as pump stations, sewage treatment plants and the like. As shown in fig. 1 to 3, the drainage pressure inspection well mainly comprises a well chamber 2, a well shaft 3, a water inlet pipe 1, a water outlet pipe 6 and a pressure cover plate 4. Wherein the shaft 3 is arranged above the well chamber 2 and the size of the shaft 3 is smaller than that of the well chamber 2; in order to ensure the pressure of the well chamber 2, the well chamber 2 and the shaft 3 are integrally cast by reinforced concrete.

As shown in fig. 1 or fig. 3, the water inlet pipe 1 and the water outlet pipe 6 are disposed at opposite sides of the well chamber 2, so that water flows into and out of the well chamber 2 through the water inlet pipe 1 and the water outlet pipe 6. The joint of the water inlet pipe 1, the water outlet pipe 6 and the well chamber 2 is respectively provided with a waterproof sleeve 5, a flexible joint filling material is arranged between the waterproof sleeve 5 and the water inlet pipe 1 and caulked through sealant, and a flexible joint filling material is arranged between the waterproof sleeve 5 and the water outlet pipe 6 and caulked through sealant.

As shown in fig. 3, the pressure cover plate 4 is disposed on a step formed at a top position of the shaft 3, and an inspection manhole 15 is formed between the steps, so that a service person can open the pressure cover plate for service and maintenance and enter and exit the inspection manhole through the inspection manhole 15. Because there is pressure in the pipeline, rivers reach pressure cap plate 4 department through the pit shaft when pressure is great, and pressure cap plate 4 is fixed by rag bolt 12 of predetermineeing in inspection manhole 15 to improve pressure cap plate 4's pressure-bearing effect. In practice, the types of the pressure cover plate 4 and the anchor bolts 12 can be selected according to the municipal drainage pipeline pressure, for example, when the municipal drainage pipeline pressure is not high, the pressure cover plate 4 with the diameter of 700mm can be adopted, and 8M 20 anchor bolts 12 are preset.

As shown in fig. 2, a manhole cover base 8 is provided on the top of the shaft 3, and a settlement-preventing manhole cover 7 is provided above the manhole cover base 8. There is easy ponding space between well lid 7 to pressure apron 4 preventing subsiding, is provided with ponding discharge structure in this space, and this ponding discharge structure includes outlet pipe 13 and rubble filtering layer 14, and wherein outlet pipe 13 sets up on the section of thick bamboo wall of pit shaft 3 and constitutes inside and outside intercommunication for outside the well section of thick bamboo with ponding discharge, and rubble filtering layer 14 sets up and is used for filtering discharged ponding in outlet pipe 13's the outside, avoids polluting peripheral stratum.

As shown in fig. 2 or fig. 3, a ladder 11 is arranged from top to bottom in the well chamber 2 near the shaft 3, and can be climbed by the maintainer for passing and maintenance.

As shown in fig. 2 or fig. 3, in this embodiment, in order to ensure smooth drainage and reduce head loss, a concrete flow groove 9 is provided in the well chamber 2 from the bottom surface of the well chamber 2 to a half of the pipe diameter of the water inlet pipe 1 or the water outlet pipe 6, the concrete flow groove 9 can be adjusted according to the angle of the water inlet and outlet pipes, and if the water inlet and outlet are nonlinear flow lines, a semi-arc flow groove can be provided to reduce head loss.

The bottom of the well chamber 2 is provided with a plain concrete cushion layer 10 which is used for supporting the whole inspection well and avoiding the occurrence of dangerous conditions such as water inlet pipe breaking and water outlet pipe breaking caused by the sedimentation of the well body of the inspection well.

In the embodiment, in specific implementation: an operation space of 200mm is reserved between the well lid foundation 8 and the pressure cover plate 4, and the pressure cover plate 4 is conveniently dismounted by a maintainer during maintenance.

A space with the height of 300mm is reserved from the bottom of the water inlet pipe and the water outlet pipe to the bottom of the well chamber 2, so that the well chamber is suitable for connection between various pipelines and inspection wells.

The shaft 3 and the well chamber 2 are integrally poured, the size of the shaft 3 is 1000mmX1000mm, a phi 600mm inspection manhole 15 is reserved, a phi 700mm pressure cover plate 4 is laid on the inspection manhole 15, the pressure cover plate 4 is fixedly sealed by reserving 8M 20 foundation bolts 12, the pressure cover plate 4 can bear the water pressure within 0.1Mpa, and if the pressure is increased, the bolt setting quantity and grade can be changed, and the pressure environment in the well chamber is ensured.

The top end of the well lid foundation 8 has a height difference of 150mm with the ground, and is provided with a phi 800mm anti-settling well lid 7.

Although the conception and the embodiments of the present invention have been described in detail with reference to the drawings, those skilled in the art will recognize that various changes and modifications can be made therein without departing from the scope of the appended claims, and therefore, the description thereof is not repeated herein.

Claims

1. A drainage pressure inspection shaft is characterized in that: including well room, pit shaft, inlet tube, outlet pipe and pressure shroud, wherein the pit shaft sets up the top of well room, the inlet tube with the outlet pipe sets up respectively the position of well room and with the well room constitutes the intercommunication, pressure shroud passes through rag bolt to be fixed on the step that the top position of pit shaft set up pressure shroud's top is provided with prevents subsiding the well lid, prevent subsiding the well lid with be provided with ponding discharge structure between the pressure shroud.

2. The drainage pressure inspection well according to claim 1, wherein: the top of pit shaft is provided with the well lid basis, prevent subsiding the well lid setting and be in on the well lid basis.

3. The drainage pressure inspection well according to claim 1, wherein: the accumulated water discharge structure comprises an accumulated water discharge pipe and a broken stone filter layer, the accumulated water discharge pipe is arranged on the wall of the shaft between the anti-settling well cover and the pressure cover plate, and the broken stone filter layer is arranged on the outer side of the accumulated water discharge pipe.

4. The drainage pressure inspection well according to claim 1, wherein: and waterproof sleeves are respectively arranged at the joints of the water inlet pipe and the water outlet pipe with the well chamber.

5. The drainage pressure inspection well according to claim 4, wherein: a flexible joint filling layer is arranged between the waterproof sleeve and the water inlet pipe and is embedded with joints through sealant, and a flexible joint filling layer is arranged between the waterproof sleeve and the water outlet pipe and is embedded with joints through sealant.

6. The drainage pressure inspection well according to claim 1, wherein: a flow groove is arranged in the well chamber and is connected with the water inlet pipe and the water outlet pipe.

7. The drainage pressure inspection well according to claim 6, wherein: the launder is arranged from the chamber bottom of the well chamber to the position of half of the pipe diameter of the water inlet pipe and the water outlet pipe.

8. The drainage pressure inspection well according to claim 1, wherein: and a plain concrete cushion layer is arranged at the bottom of the well chamber.

9. The drainage pressure inspection well according to claim 1, wherein: a ladder stand is arranged in the well chamber and close to the well shaft.