Dual-layer water seal inspection well with automatic water supplementing device

Abstract

The present application relates to the technical field of inspection well, and particularly relates to a double-layer water seal inspection well with automatic water supplementing device and capable of preventing explosion and poison, which comprises a well body and a well lid assembly at the top of the well body, the well body is divided into a first water seal chamber, a second water seal chamber and a water supplementing chamber, a water seal chamber partition plate is arranged in the well body, the water seal chamber partition plate is used for separating the first water seal chamber from the second water seal chamber and separating the second water seal chamber from the water supplementing chamber, the first water seal chamber and the second water seal chamber are communicated through a swing check valve on the water seal chamber partition plate, the first water seal chamber is communicated with the water supplementing chamber, a water inlet pipe is arranged on the well wall of the first water seal chamber through a water inlet, a water outlet pipe is arranged on the well wall of the second water seal chamber through a water outlet, and an automatic water supplementing device is arranged in the water supplementing chamber. When the water level is insufficient, the automatic water supplementing device is used for supplementing water. The automatic water supplementing device is arranged, so that the water seal well can automatically supplement water when the water level is low, and the water seal isolation function can be ensured.

Description

Technical Field

[0001] This invention relates to the field of inspection well technology, and in particular to a double-layered water-sealed inspection well with an automatic water replenishment device that is toxic and explosion-proof. Background Technology

[0002] Currently, the water-sealed inspection wells used in underground engineering projects in my country are mainly concrete-cast on the construction site. Their structure is relatively simple, with only a drainage pipe bent into the water-sealed chamber. They rely solely on the water seal to prevent toxic gases or shock waves from harming the internal environment of the project. The isolation effect of the water seal is limited. Once the water level inside the water-sealed well is low, the concentration of toxic gases is high, or the shock wave is strong, toxic gases or shock waves may still break through the water seal and enter the project. At this time, such water-sealed inspection wells are difficult to play an isolation role. Summary of the Invention

[0003] The purpose of this invention is to provide a double-layered water-sealed inspection well with an automatic water replenishment device to solve the problems mentioned in the background art.

[0004] To achieve the objectives of this invention, the following technical solution is adopted:

[0005] A double-layered water-sealed inspection well with an automatic water replenishment device is disclosed. The inspection well includes a well body and a well cover assembly located at the top of the well body. The well body is divided into a first water seal chamber, a second water seal chamber, and a water replenishment chamber. A water seal chamber partition is provided in the well body to separate the first water seal chamber and the second water seal chamber, and to separate the second water seal chamber from the water replenishment chamber. The first water seal chamber and the second water seal chamber are connected by a pendulum check valve located on the water seal chamber partition. The first water seal chamber and the water replenishment chamber are connected. A water inlet pipe is installed on the well wall of the first water seal chamber through a water inlet, and a water outlet pipe is installed on the well wall of the second water seal chamber through a water outlet. An automatic water replenishment device is provided in the water replenishment chamber.

[0006] A further improvement is that the automatic water replenishment device includes a water replenishment pipe and a float valve water replenishment device, wherein the water replenishment pipe passes through the bottom of the inspection well into the water replenishment chamber and is connected to the float valve water replenishment device.

[0007] A further improvement is that the end of the water inlet pipe is provided with an elbow that bends towards the bottom of the well, thus forming a "7" shape.

[0008] A further improvement is that the water outlet pipe is S-shaped.

[0009] A further improvement is that the well cover assembly includes a sleeve, which is fixed to the periphery of the well opening and integrally formed with the top wall of the well opening. The diameter of the sleeve is larger than the diameter of the well opening. A first cover plate is detachably installed on the inner bottom wall of the sleeve to form a third water seal chamber inside the sleeve. The first cover plate separates the third water seal chamber from the first water seal chamber and the second water seal chamber. Sealing gaskets are provided around the inner bottom wall of the sleeve to prevent water from the third water seal chamber from leaking into the first water seal chamber and the second water seal chamber. A second cover plate is installed on the top of the sleeve.

[0010] A further improvement is that the first cover plate is provided with a drain hole, and a sealing plug with a sealing ring is installed in the drain hole.

[0011] A further improvement is that a lifting ring is provided on the first cover plate.

[0012] A further improvement is that the number of lifting rings is two sets, and the two sets of lifting rings are symmetrically distributed on the first cover plate.

[0013] A further improvement is that a tenon structure is provided on the inner side wall of the sleeve, and a notch matching the tenon structure is provided on the first cover plate. When the notch on the first cover plate is aligned with the tenon structure, the first cover plate can move up and down inside the sleeve.

[0014] A further improvement is that the first water seal chamber and the water replenishment chamber are separated by a filter screen.

[0015] The beneficial effects of this invention are:

[0016] During normal use, when water flows into the first water seal chamber from the inlet pipe, the water level in the first water seal chamber rises, and the water pressure in the first water seal chamber is greater than that in the second water seal chamber. At this time, the pendulum check valve will open under the action of water pressure, allowing water in the first water seal chamber to flow into the second water seal chamber through the pendulum check valve, and then be discharged through the outlet pipe. When the water level is insufficient, water is replenished through an automatic water replenishment device. By setting up an automatic water replenishment device, water can be automatically replenished inside the water seal well when the water level is low, ensuring the water seal isolation function is maintained.

[0017] The present invention forms a third water seal chamber inside the sleeve, which can effectively prevent toxic gas or shock waves from entering the first water seal chamber from the top.

[0018] This invention achieves triple isolation through a pendulum check valve 5, three water seal chambers, a "7"-shaped inlet pipe, and an "S"-shaped outlet pipe, preventing the residual pressure of the shock wave from entering the interior of the structure. Attached Figure Description

[0019] Figure 1This is a top view of the structure of a double-layer water-sealed inspection well with an automatic water replenishment device according to the present invention.

[0020] Figure 2 for Figure 1 Sectional view at point AA;

[0021] Figure 3 for Figure 1 Sectional view at point BB;

[0022] Figure 4 This is a mid-section view of the overall structure of a double-layered water-sealed inspection well with an automatic water replenishment device according to the present invention.

[0023] Explanation of reference numerals in the attached figures:

[0024] 1. Well body; 2. Well cover assembly; 3. Inlet pipe; 4. Outlet pipe; 5. Swing check valve; 6. First water seal chamber; 7. Second water seal chamber; 8. Water seal chamber partition; 9. Sealing gasket; 10. Third water seal chamber; 11. Sealing plug with sealing ring; 12. First cover plate; 13. Second cover plate; 14. Lifting ring; 15. Locking tenon; 16. Water replenishment chamber; 17. Water replenishment pipe; 18. Float valve water replenishment device; 19. Filter screen; 20. Sleeve. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and do not limit the scope of protection of this invention.

[0026] It should be noted that when a component is referred to as "fixed to," "set on," "fixed to," or "mounted to" another component, it can be directly on the other component or there may be an intermediate component. When a component is considered to be "connected" to another component, it can be directly connected to the other component or there may be an intermediate component. Furthermore, when a component is considered to be "transmittally connected" to another component, the two components only need to be able to transmit power; the specific implementation can be achieved using existing technologies, which will not be elaborated here. When a component is perpendicular or approximately perpendicular to another component, it means that the two components are ideally perpendicular, but due to manufacturing and assembly effects, there may be a certain degree of perpendicularity error. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only and do not represent the only possible implementation.

[0027] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0028] In this invention, the terms "first" and "second" do not represent a specific quantity or order, but are merely used to distinguish names.

[0029] Please refer to the attached document. Figure 1 - Appendix Figure 4 This invention proposes a double-layered water-sealed inspection well with an automatic water replenishment device, which is toxic and explosion-proof. Figure 1 and Figure 4 As shown, the inspection well includes a well body 1 and a well cover assembly 2 located at the top of the well body 1. The well body 1 is divided into a first water seal chamber 6, a second water seal chamber 7, and a water replenishment chamber 16. A water seal chamber partition 8 is provided inside the well body 1. The water seal chamber partition 8 is used to separate the first water seal chamber 6 and the second water seal chamber 7, and to separate the second water seal chamber 7 and the water replenishment chamber 16. The first water seal chamber 6 and the second water seal chamber 7 are connected by a pendulum check valve 5 located on the water seal chamber partition 8. The first water seal chamber 6 and the water replenishment chamber 16 are connected. A water inlet pipe 3 is installed on the well wall of the first water seal chamber 6 through the water inlet. A water outlet pipe 4 is installed on the well wall of the second water seal chamber 7 through the water outlet. An automatic water replenishment device is provided inside the water replenishment chamber 16.

[0030] Under normal use, when water flows into the first water seal chamber 6 from the inlet pipe 3, the water level in the first water seal chamber 6 rises, and the water pressure in the first water seal chamber 6 is greater than the water pressure in the second water seal chamber 7. At this time, the pendulum check valve 5 will open under the action of water pressure, allowing water in the first water seal chamber 6 to flow into the second water seal chamber 7 through the pendulum check valve 5, and then be discharged through the outlet pipe 4. When the water level is insufficient, water is replenished through an automatic water replenishment device. By setting up an automatic water replenishment device, it is possible to ensure that water is automatically replenished inside the water seal well when the water level is low, thus ensuring the water seal isolation function is performed.

[0031] Specifically, in this embodiment, such as Figure 1 and Figure 2 As shown, the automatic water replenishment device includes a water replenishment pipe 17 and a float valve water replenishment device 18. The float valve water replenishment device 18 includes a float valve and a float. The water replenishment pipe 17 passes through the bottom of the inspection well and enters the water replenishment chamber 16, and is connected to the float valve water replenishment device 18.

[0032] Understandably, the working principle of the float valve water replenishment device 18 is to control water replenishment using a float valve. When the water level in the water replenishment chamber 16 drops to a certain level, the float will drop with the water level, causing the float valve to open and making the water replenishment pipe 17 unobstructed, thereby automatically replenishing water into the water replenishment chamber 16. When the water level in the water replenishment chamber 16 reaches a certain height, the float will rise with the water level, causing the float valve to close, thus stopping the water replenishment process.

[0033] As a preferred embodiment of this solution, such as Figure 3 As shown, the end of the inlet pipe 3 is provided with an elbow that bends towards the bottom of the well, thus forming a "7" shape. The outlet pipe 4 is generally "S" shaped. By setting the "7" shaped inlet pipe 3 and the "S" shaped outlet pipe 4, the isolation effect can be strengthened, preventing the residual pressure of the shock wave from entering the interior of the structure.

[0034] In this embodiment, as Figure 4 As shown, the well cover assembly 2 includes a sleeve 20, which is fixed to the periphery of the well opening and integrally formed with the top wall of the well opening. The diameter of the sleeve 20 is larger than the diameter of the well opening. A first cover plate 12 is detachably installed on the inner bottom wall of the sleeve 20, thereby forming a third water seal chamber 10 inside the sleeve 20. The first cover plate 12 separates the third water seal chamber 10 from the first water seal chamber 6 and the second water seal chamber 7. Sealing gaskets 9 are provided around the inner bottom wall of the sleeve 20 to prevent water from the third water seal chamber 10 from leaking into the first water seal chamber 6 and the second water seal chamber 7. A second cover plate 13 is installed on the top of the sleeve 20.

[0035] It is understandable that by forming a third water seal chamber 10 inside the sleeve 20, the third water seal chamber 10 can effectively prevent toxic gas or shock waves from entering the first water seal chamber 6 from the top.

[0036] As a preferred embodiment, the first cover plate 12 is provided with a drainage hole, and a sealing bolt 11 with a sealing ring is installed in the drainage hole.

[0037] Understandably, by providing a drain hole, water in the third water seal chamber 10 can be drained into the first water seal chamber 6 when the first cover plate 12 needs to be removed. Installing a sealing bolt 11 with a sealing ring in the drain hole prevents water in the third water seal chamber 10 from draining into the first water seal chamber 6.

[0038] As a preferred embodiment, the first cover plate 12 is provided with two sets of lifting rings 14, which are symmetrically distributed on the first cover plate 12.

[0039] Understandably, the lifting ring 14 facilitates the operation of the first cover plate 12.

[0040] As a preferred embodiment, the inner wall of the sleeve 20 is provided with a tenon 15 structure, and the first cover plate 12 is provided with a notch (not shown in the figure) that matches the tenon 15 structure. When the notch on the first cover plate 12 is aligned with the tenon 15 structure, the first cover plate 12 can move up and down inside the sleeve 20.

[0041] Understandably, by setting the tenon 15 structure and the notch fit, it is convenient to fix, install, and disassemble the first cover plate 12.

[0042] In a preferred embodiment, the first water seal chamber 6 and the water replenishment chamber 16 are separated by a filter screen 19. By setting the filter screen 19, debris in the inspection well can be filtered out, preventing the mud and sand discharged from the project from clogging the water replenishment pipe 17 in the water replenishment chamber 16, and at the same time facilitating the cleaning of the water seal well.

[0043] The working principle of this embodiment is as follows: When attacked by toxic gas or shock wave, the pendulum check valve 5 will automatically close under the action of shock wave or its own weight, completely isolating and sealing the first water seal chamber 6 and the second water seal chamber 7, effectively blocking the toxic gas or shock wave. At the same time, the third water seal chamber 10 can also effectively prevent toxic gas or shock wave from entering the first water seal chamber 6 from the top.

[0044] When maintenance is required, first open the second cover plate 13, then pull out the sealing bolt 11 with the sealing ring, allowing the water in the third water seal chamber 10 to flow into the first water seal chamber 6. Then, hold the lifting ring 14 and rotate the first cover plate 12 so that the notch on the first cover plate 12 aligns with the tenon 15 structure, and then lift the first cover plate 12 upwards. After lifting the first cover plate 12, the water seal well can be inspected.

[0045] In this embodiment, the triple isolation effect is achieved by the pendulum check valve 5, three water seal chambers, "7" shaped water inlet pipe 3, and "S" shaped water outlet pipe 4, so that the residual pressure of the shock wave cannot enter the interior of the project.

[0046] The components of the water-sealed inspection well in this embodiment are prefabricated, which are easier to install, inspect, and replace than the cast-in-place concrete water-sealed inspection wells commonly used in existing projects.

[0047] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0048] The embodiments described above are merely illustrative of specific implementations of the present invention, and while the descriptions are detailed, they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements all fall within the scope of protection of the present invention.

Claims

1. A dual-layer water seal inspection shaft with automatic water replenishment device, characterized in that, The inspection well comprises a well body and a well lid assembly at the top of the well body, the well body is divided into a first water seal chamber, a second water seal chamber and a water supplement chamber, a water seal chamber partition is arranged in the well body, the water seal chamber partition is used to separate the first water seal chamber and the second water seal chamber and to separate the second water seal chamber and the water supplement chamber, the first water seal chamber and the second water seal chamber are communicated through a swing check valve on the water seal chamber partition, the first water seal chamber and the water supplement chamber are communicated, a water inlet pipe is arranged on the well wall of the first water seal chamber through a water inlet, a water outlet pipe is arranged on the well wall of the second water seal chamber through a water outlet, and an automatic water supplement device is arranged in the water supplement chamber; The automatic water supplement device comprises a water supplement pipe and a floating ball valve water supplement device, the water supplement pipe passes through the bottom of the inspection well into the water supplement chamber and is connected with the floating ball valve water supplement device; The well lid assembly comprises a sleeve, the sleeve is fixed on the periphery of the well lid and is integrally formed with the top wall of the well lid, the diameter of the sleeve is larger than the diameter of the well lid, a first cover plate is detachably arranged on the inner bottom wall of the sleeve so as to form a third water seal chamber in the sleeve, the first cover plate separates the third water seal chamber from the first water seal chamber and the second water seal chamber, sealing rubber pads are arranged around the inner bottom wall of the sleeve to prevent water in the third water seal chamber from leaking into the first water seal chamber and the second water seal chamber, and a second cover plate is arranged on the top of the sleeve.

2. The dual water seal inspection chamber with automatic water replenishment device according to claim 1, wherein, A bend is arranged at the end of the water inlet pipe to bend towards the bottom of the well, so as to form a "7" shape.

3. The dual water seal inspection chamber with automatic water replenishment device according to claim 1, wherein, The water outlet pipe is in the shape of "S".

4. The dual water seal inspection chamber with automatic water replenishment device according to claim 1, wherein, A drain hole is arranged on the first cover plate, and a sealing plug with a sealing rubber ring is arranged in the drain hole.

5. The dual water seal inspection chamber with automatic water replenishment device according to claim 1, wherein, A lifting ring is arranged on the first cover plate.

6. The dual water seal inspection chamber with automatic water replenishment device according to claim 5, wherein, The number of the lifting rings is two, and the two lifting rings are symmetrically arranged on the first cover plate.

7. The dual water seal manhole of claim 1, wherein the automatic water replenishing device comprises a water tank, a water level sensor, a water pump, a water level controller, and a water level indicator. A mortise structure is arranged on the inner side wall of the sleeve, and a notch matching the mortise structure is arranged on the first cover plate, so that the first cover plate can move up and down in the sleeve when the notch on the first cover plate is aligned with the mortise structure.

8. The dual water seal manhole of claim 1, wherein the automatic water replenishing device comprises a water tank, a water level sensor, a water pump, a water level controller, and a water level indicator. The first water seal chamber and the water supplement chamber are separated by a filter screen.

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