CN214246018U

CN214246018U - Inspection well of drainage pipeline system

Info

Publication number: CN214246018U
Application number: CN202023002450.4U
Authority: CN
Inventors: 张应忠
Original assignee: Sichuan Baojing Technology Co ltd
Current assignee: Sichuan Baojing Technology Co ltd
Priority date: 2020-12-15
Filing date: 2020-12-15
Publication date: 2021-09-21
Anticipated expiration: 2030-12-15

Abstract

The inspection well of the drainage pipeline system is characterized in that a sealing cover of a flange blind plate structure which can be matched and hermetically connected with a first flange structure at the position above the shaft is arranged above the shaft at the inner side of the well cover, and a connector used for being connected with a balance pipe extending out of the inspection well body is arranged at the position higher than the drainage pipeline connector in the inspection well body. The inspection well can effectively prevent serious consequences such as unqualified discharged water of a sewage plant, reduced standard-reaching rate, even paralysis and the like caused by the fact that fluid outside the drainage pipeline system, including rainwater, waterlogging and the like, returns into the drainage pipeline system along the pipeline and is overloaded by the sewage plant.

Description

Inspection well of drainage pipeline system

Technical Field

The utility model relates to a set up and be used for carrying out the inspection shaft of maintenance and repair to the pipeline in row rain sewage pipe-line system.

Background

The inspection well is a key structural unit in a rainwater and sewage pipeline system, and is related to the quality improvement of water environment treatment. According to different conditions, the inspection well in the conventional form can be different types such as a straight wall type inspection well with the same diameter above a shaft and a closed type inspection well with the diameter gradually contracted above the shaft, wherein the closed type inspection well comprises a concentric closed type well body with a well mouth and the shaft positioned on the same central axis, and different forms such as offset closed type well bodies with the central axes of the well mouth and the shaft positioned in a staggered way. The basic structure of the inspection well comprises a bottom well base and a well shaft which is communicated above the bottom well base, a plurality of connecting ports for connecting with a drainage pipeline are arranged at the well base, and an opening part above the well shaft is covered with an openable well cover capable of bearing weight/pressure. Under the condition of standard quality and construction, the inspection well with the conventional structure can generally ensure that fluid in the drainage pipeline system does not leak outwards, but can not prevent the fluid outside the drainage pipeline system from flowing back into the drainage pipeline system.

For example, although according to the regulations for water environmental treatment, all sewage related to domestic and industrial discharge is required to be collected and treated to reach the specified discharge standard, and then can be discharged into public ditches and rivers. However, due to various factors, a large number of sewage drainage pipe systems are often arranged along open channels or river channels in cities and towns. Because the water level of the open ditch or the river channel rises during the period of abundant water and can submerge the wellhead of the inspection well, the water of the ditch or the river channel can be back-poured into a sewage drainage pipeline system; in addition, the waterlogging condition often appears under the influence of weather such as extreme rainstorm, and the sewage draining well lid can be lifted to lead to rainwater and waterlogging water to flow back into the sewage draining pipeline system. These all can cause sewage treatment plant to be overwhelmed, lead to sewage treatment plant effluent not up to standard or standard rate decline, even paralyse etc. serious consequence.

SUMMERY OF THE UTILITY MODEL

In view of the above situation, the utility model provides an improve inspection shaft of structure can effectively prevent and solve the problem that the outer fluid of drainage pipe system returned and irritated in the drainage pipe system.

The utility model discloses drainage pipe system's inspection shaft, on the basis of current conventional inspection shaft structure, be in the inspection shaft well body that has well seat and the pit shaft that link up each other promptly, be equipped with the connector that is used for being connected with drainage pipe in well body below, on the basis that pit shaft top opening covers the present conventional form inspection shaft of the well lid that has opened, in the inboard pit shaft top of well lid, be equipped with can cooperate with the first flange structure that sets up in pit shaft top position department, realize the sealed lid of sealing connection's flange blind plate structure, and the position that is higher than the drainage pipe connector in the inspection shaft body is equipped with the interface that is used for and stretches out the balanced union coupling outside the inspection shaft body.

The utility model discloses above-mentioned structural style's inspection shaft can be the same with present conventional inspection shaft, adopts the inspection shaft of the straight wall type of the well seat the central axis of the inspection shaft body and pit shaft the central axis to set up for same central axis or the inspection shaft of concentric closing up type, also can be for the inspection shaft of the well seat the central axis of the inspection shaft body and the pit shaft the central axis be the offset shape setting's of offset closing up type inspection shaft to adapt to the needs in different service environment/place.

In the inspection well with the structure, the sealing cover with the flange blind plate structure can be one of a plane type flange blind plate, a convex type flange blind plate on the bottom or a concave type flange blind plate on the bottom according to requirements.

The interface used for being connected with the balance pipe extending out of the inspection well body in the inspection well body can be arranged at a well seat position or a traffic position in the well body; and the balance pipe and the interface can be fixedly connected into a whole structural form or a detachable assembly type form which can be disassembled and assembled on a construction site according to construction and/or use requirements.

The space in the well body of the inspection well with the structure is sealed by the sealing cover above the shaft, so that the balance pipe which can be extended out of the inspection well body is arranged, the pressure in the well body and/or harmful gas generated/reserved in the drainage pipeline system can be leaked out in time to keep the balance of the environment in the well and the outside so as to be beneficial to the normal operation of water flow in the pipeline system and the working safety of maintenance personnel. In order to effectively prevent fluid outside the drainage pipeline system, such as rainwater, waterlogging and the like, from flowing back into the drainage pipeline system along the pipeline, the position of the exposed outer port of the balance pipe is higher than the height of the position of the openable well cover at the opening part above the inspection well body.

The opening part of the exposed outer end of the balance pipe can be further provided with a shielding cover in a proper form, so that the condition that the balance pipe is possibly blocked due to the falling of foreign matters and the like is avoided, and the safety in use is improved.

On above-mentioned structure basis, for further increasing convenience and adaptability of inspection shaft construction, use, the well seat and the pit shaft of the inspection shaft body can also make its form for through the second flange structure sealing connection that can mutually support except can adopting the overall structure of integral type to the convenience assembles at the job site.

For further guarantee and improvement the utility model discloses the sealing performance of above-mentioned inspection shaft, at foretell flange blind plate structural seal lid with first flange structure between, can be provided with the first seal structure of suitable form, and/or can also be provided with the second seal structure of suitable form between the second flange structure that mutually supports between well seat and pit shaft. The sealing structures can be respectively and independently selected from sealing structures in conventional forms such as applicable sealing rings and the like.

Therefore, the utility model discloses the inspection shaft of above-mentioned structure can effectively prevent and solved because of the fluid outside drainage pipe systems such as rainwater and waterlogging returns along the pipeline and pours into the drainage pipe system in and make sewage treatment plant embarrassed, leads to the not up to standard of drainage water of sewage plant or the rate of standard decline, paralysed serious consequence scheduling problem even.

The above-mentioned aspects of the present invention will be further described in detail with reference to the following detailed description of the embodiments illustrated in the drawings. This should not be understood as limiting the scope of the above-described subject matter of the present invention to the following examples only. Various substitutions and alterations according to the general technical knowledge and conventional means in the field are included in the scope of the present invention without departing from the technical idea of the present invention.

Drawings

Fig. 1 is a schematic structural view of an integrated straight-wall inspection shaft of the present invention.

Fig. 2 is a schematic structural view of an assembled straight-wall inspection shaft of the present invention.

Fig. 3 is a schematic structural diagram of an integrated offset-closed inspection well of the present invention.

Fig. 4 is a schematic structural view of an assembled offset-closed inspection well of the present invention.

Fig. 5 is a schematic structural view of an integrated concentric closed inspection well of the present invention.

Fig. 6 is a schematic structural view of an assembled concentric-closed inspection well according to the present invention.

Detailed Description

Fig. 1 shows, is the utility model discloses a straight wall type drainage pipe system's of integral type inspection shaft structure, the straight wall type inspection shaft body that has a well seat central axis 12 and pit shaft central axis 13 for the integral type structure that same central axis link up is equipped with a connector 11 that is used for being connected with drainage pipe at well seat 1 position according to conventional mode at least. A conventional openable well lid 15 is provided at an opening portion above the shaft 2. The shaft inside the well cover 15 is provided with a sealing cover 3 of a plane flange blind plate structure which can be matched with a first flange structure 4 arranged at the upper part of the shaft for sealing connection, and a first sealing structure 5 of a common form such as a sealing ring is arranged between the flange matching structures. In the manhole body, at a location above the drain connection 11 (in the shaft section shown in the figure), there is provided a connection 14 for connection to a balance pipe 9 extending outside the manhole body. The balance pipe 9 and the interface 14 may be an integral structure or may be an assembled structure that can be disassembled and assembled at a construction site. The position of the exposed outer port 10 of the balance tube 9 is higher than the height of the position of the openable well lid 15 at the upper opening part of the well body, and a shielding cover in a proper form is arranged at the exposed outer port 10.

Fig. 2 shows a structure of an inspection well of a straight-wall type drainage pipe system according to another aspect of the present invention. The difference from the structure shown in fig. 1 is that the well seat 1 and the shaft 2 in the well body are assembled structures formed by mutually matched

flange structures

6 and 7 through sealing connection, and a second sealing structure 8 in a common form, such as a sealing ring, is arranged between the flange structure 6 of the well seat 1 and the flange structure 7 of the shaft 2. Furthermore, an interface 14 for connection to a balance tube 9 extending outside the examination borehole is provided in the borehole at the location of the borehole 2. The remaining structure is identical to that of the manhole shown in fig. 1.

Fig. 3 shows the structure of the inspection well of an integrated offset closing-up type drainage pipeline system of the present invention. The difference from the structure shown in fig. 1 lies in that the well seat central axis 12 of the well body and the well shaft central axis 13 are arranged in a staggered manner, the diameter from the well seat 1 to the well shaft 2 is in a gradually reduced form, the sealing cover 3 is a flange blind plate with a convex structure on the bottom, and a connector 14 for connecting with the balance pipe 9 extending out of the inspection well body is arranged at the position higher than the drainage pipeline connector 11 in the well seat 1. The remaining structure is identical to that of the manhole shown in fig. 1.

Fig. 4 shows another inspection well structure of the offset necking-type drainage pipe system of the present invention. The difference from the structure shown in fig. 3 is that the well seat 1 and the shaft 2 in the well body are assembled structures formed by mutually matched

flange structures

6 and 7 through sealing connection, and a second sealing structure 8 in a common form, such as a sealing ring, is arranged between the flange structure 6 of the well seat 1 and the flange structure 7 of the shaft 2; an interface 14 for connection to a balance tube 9 extending outside the examination borehole is arranged in the borehole 2 part of the borehole. The remaining structure is identical to that of the manhole shown in fig. 3.

Fig. 5 shows the structure of the inspection well of the integrated concentric closing-up type drainage pipeline system of the present invention. The difference from the structure shown in fig. 1 is that although the well seat central axis 12 and the shaft central axis 13 of the inspection well body are in the same central axis, the diameter from the well seat 1 to the shaft 2 is gradually reduced, and the sealing cover 3 is a flange blind plate with a downward-concave structure at the bottom; a port 14 for connection with the balance pipe 9 extending outside the inspection well body is provided in the well base 1 at a position higher than the drain pipe connection port 11. The remaining structure is identical to that of the manhole shown in fig. 1.

Fig. 6 shows another inspection well structure of a concentric closing-up type drainage pipe system according to the present invention. The difference from the structure shown in fig. 5 lies in that the well seat 1 and the shaft 2 in the well body are assembled structures formed by mutually matched

flange structures

6 and 7 in a sealing way, and a second sealing structure 8 in a common form, such as a sealing ring, is arranged between the flange structure 6 of the well seat 1 and the flange structure 7 of the shaft 2; an interface 14 for connection to a balance tube 9 extending outside the examination borehole is arranged in the borehole 2 part of the borehole. The remaining structure is identical to that of the manhole shown in fig. 5.

Claims

1. The inspection well of the drainage pipeline system is characterized in that a connecting port (11) connected with a drainage pipeline is arranged below an inspection well body comprising a well seat (1) and a well shaft (2) which are mutually communicated, an openable well cover (15) covers an opening part above the well shaft, a sealing cover (3) of a flange blind plate structure which can be matched and hermetically connected with a first flange structure (4) at the position above the well shaft is arranged above the well cover (15), and an interface (14) connected with a balance pipe (9) extending out of the inspection well body is arranged at the position higher than the connecting port (11) of the drainage pipeline in the inspection well body.

2. An inspection shaft of a drainage pipe system according to claim 1, wherein the center axis (12) of the seat of the inspection shaft body and the center axis (13) of the shaft are arranged at the same center axis.

3. The inspection well of the drainage pipeline system according to claim 1, wherein the central axis (12) of the well seat of the inspection well body and the central axis (13) of the well shaft are arranged in a staggered manner.

4. Inspection shaft of a drainage pipe system according to claim 1, characterized in that said sealing cover (3) is one of a flat type, a convex type on the bottom or a concave type.

5. The inspection well of the drainage pipeline system according to claim 1, wherein the interface (14) of the inspection well body for connecting with the balance pipe (9) extending out of the inspection well body is a structure fixedly connected with the balance pipe (9) or an assembly structure capable of being disassembled from each other.

6. The inspection well of a drainage pipe system according to claim 5, wherein the position of the exposed outer end (10) of said balance pipe (9) is higher than the height of the openable well lid (15) of the upper opening of the inspection well body.

7. Inspection shaft of a drainage pipe system according to claim 5, characterized in that a shielding cover is provided at the portion of the exposed end (10) of the balance pipe (9).

8. Inspection shaft for a drainage pipe system according to any of the claims 1 to 7, characterised in that the shaft seat (1) and the shaft (2) of the inspection shaft body are sealingly connected by means of a second flange construction (6, 7) which is adapted to cooperate with each other.

9. An inspection shaft of a drainage pipe system according to claim 8, characterized in that a first sealing structure (5) is arranged between the sealing cover (3) of the flange blind structure and the first flange structure (4), and/or a second sealing structure (8) is arranged between the second flange structures (6, 7) which can be matched with each other between the shaft seat (1) and the shaft (2).