Split municipal drainage inspection well capable of being adjusted in lifting mode

Abstract

The split municipal drainage inspection well capable of being adjusted in the lifting mode comprises a main well chamber, a shaft and a well lid support which are sequentially arranged from bottom to top, the main well chamber and the shaft can be separated from each other and can be connected in a sealed mode, and the well lid support is arranged at the upper end of the shaft in a split and sleeved mode. The well lid support is arranged on the shaft and can freely ascend and descend up and down along the shaft so as to adjust the height, during assembly, the well lid support can be manually lifted upwards, and the well lid support is supported through rammed earth backfilling till the well lid support ascends to the height flush with the ground surface along the shaft, and the mode of adjusting the height of the well lid support is simple and effective; and different ground surface heights can be adapted, construction is convenient and fast, and the assembling efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of municipal drainage inspection wells, and particularly relates to a separable municipal drainage inspection well with liftable adjustment. Background Art

[0002] Municipal drainage inspection wells are an important part of municipal engineering. Their main functions are to collect and drain the accumulated water on road surfaces or urban squares, facilitate regular inspection and dredging of pipelines by maintenance workers, remove sludge and foreign matters, and prevent pipeline blockages. The well bodies of traditional municipal drainage inspection wells are mainly formed by brick masonry and on-site concrete pouring, which have problems such as long construction periods, short service lives, and easy leakage.

[0003] In the prior art, reinforced concrete has been generally used for prefabricating municipal drainage inspection wells, and for the convenience of hoisting, prefabricated well bodies are generally made in a separable form. For example, the authorized announcement number is CN205116224U, which discloses an assembled inspection well composed of a stepped wellhead, sectional well bodies, and a bottom plate. The well body is assembled by multiple sectional well bodies. The separable well body is easy to transport and install, and the on-site construction speed is fast. However, the following deficiencies still exist in the assembly process of this inspection well: Since the heights of the stepped wellhead and sectional well bodies are fixed during prefabrication, and during the assembly of the inspection well, it needs to be buried deep underground at a specific depth to match the height of the municipal drainage pipe network, and the upper wellhead of the inspection well needs to be flush with the ground surface. However, when assembling on some undulating road surfaces or roads with different heights, there will be a height error between the upper wellhead height of the inspection well and the ground surface. If the wellhead is higher than the ground surface, it needs to be cut manually to reduce the height. If the wellhead is lower than the ground surface, it needs to be height-compensated manually with concrete or bricks. Therefore, there are problems such as inconvenient adjustment of the wellhead height, inconvenient construction, and low assembly efficiency. Summary of the Utility Model

[0004] In view of this, it is necessary to provide a separable municipal drainage inspection well with liftable adjustment to solve the technical problems of inconvenient adjustment of the wellhead height, inconvenient construction, and low assembly efficiency existing in the prior art.

[0005] The technical solution adopted by the utility model to solve its technical problems is as follows:

[0006] A separable municipal drainage inspection well with liftable adjustment includes a main well chamber, a well shaft, and a manhole cover support arranged in sequence from bottom to top. The main well chamber and the well shaft can be separated from each other and can be hermetically connected to each other. The manhole cover support is detachably sleeved on the upper end of the well shaft and can freely move up and down along the well shaft for height adjustment.

[0007] Preferably, a first sealing ring is annularly arranged on the inner side wall of the manhole cover support, and the first sealing ring is close to the lower end of the manhole cover support. After the manhole cover support is sleeved on the wellbore, the first sealing ring can be clamped between the manhole cover support and the wellbore, so that the manhole cover support and the wellbore are hermetically connected to each other.

[0008] Preferably, socket and spigot joints communicating with the inner cavity are respectively arranged on the outer walls of opposite sides of the main well chamber.

[0009] Preferably, a reinforcing wall surrounding the socket and spigot joints is arranged on the outer wall of the main well chamber, and the reinforcing wall is integrally cast with the main well chamber.

[0010] Preferably, a supporting platform extending outward is further arranged at the lower end of the socket, and the supporting platform is integrally cast with the reinforcing wall.

[0011] Preferably, a base is annularly arranged at the lower end of the main well chamber, the diameter of the base is larger than the outer diameter of the main well chamber, and the base is integrally cast with the main well chamber.

[0012] Preferably, a second sealing ring is annularly arranged on the inner wall of the socket.

[0013] Preferably, a third sealing ring is annularly arranged on the outer wall of the spigot.

[0014] Preferably, a socket joint communicating with the inner cavity is arranged at the upper end of the main well chamber, an insertion joint matching with the socket joint is arranged at the bottom of the wellbore, a fourth sealing ring is annularly arranged on the socket joint or the insertion joint, and the wellbore is detachably inserted into the upper end of the main well chamber.

[0015] Preferably, a manhole cover matching with the manhole cover support is arranged at the upper end of the manhole cover support.

[0016] As can be seen from the above technical solutions, the separable municipal drainage inspection well with liftable adjustment provided by the present application includes a main well chamber, a wellbore and a manhole cover support which are sequentially arranged from bottom to top. The main well chamber and the wellbore can be separated from each other and can be hermetically connected to each other. The manhole cover support can be detachably sleeved on the upper end of the wellbore and can freely move up and down along the wellbore for height adjustment. During assembly, the manhole cover support can be manually lifted upward, and the manhole cover support can be supported by ramming soil backfill until the manhole cover support rises along the wellbore to a height flush with the ground surface. This method of adjusting the height of the manhole cover support is simple and effective, can cope with the heights of different ground surfaces, and is convenient for construction, improving the assembly efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic view of the separable structure of this utility model.

[0018] Figure 2It is a schematic diagram of the split structure from another angle of this utility model.

[0019] Figure 3 It is a schematic cross-sectional view of the well cover support.

[0020] Figure 4 It is a schematic diagram of the assembly structure of this utility model.

[0021] In the figure: main well chamber 1, wellbore 2, well cover support 3, first sealing ring 31, annular boss 32, socket 11, spigot 12, strengthening wall 13, support platform 14, base 15, second sealing ring 16, third sealing ring 17, socket joint 18, fourth sealing ring 19, spigot joint 21, ladder 22, well cover 4, lifting hole 5, municipal drainage pipe 6. Specific embodiments

[0022] In order to more clearly illustrate the technical solutions of the embodiments of this utility model, the following will briefly introduce the drawings required for use in the embodiments. Obviously, the drawings described below are some embodiments of this utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0023] Please refer to Figure 1 , Figure 2 and Figure 4, an embodiment of the present utility model provides a lift-adjustable split-type municipal drainage inspection well, which includes a main well chamber 1, a wellbore 2 and a manhole cover support 3 arranged successively from bottom to top. The main well chamber 1, the wellbore 2 and the manhole cover support 3 are all formed by split casting with reinforced concrete and are mutually matched, capable of being hermetically connected and assembled with each other. Among them, the manhole cover support 3 is a cylindrical structure with upper and lower ends communicating. The inner diameter of the manhole cover support 3 matches the outer diameter of the wellbore 2. The manhole cover support 3 is detachably sleeved on the wellbore 2 and can freely slide up and down along the wellbore 2. An annular boss 32 for supporting the manhole cover 4 is provided on the inner wall of the manhole cover support 3 near the upper opening. The inner diameter of the annular boss 32 is smaller than the outer diameter of the wellbore 2. The annular boss 32 can play a role in limiting the manhole cover support 3. When the municipal drainage inspection well is assembled, after the main well chamber 1 is installed at a predetermined position, the wellbore 2 is assembled on the upper end of the main well chamber 1 and hermetically connected with the main well chamber 1. The manhole cover support 3 is sleeved on the wellbore 2 from the upper end of the wellbore 2. The manhole cover support 3 slides down along the wellbore 2 under its own gravity until the annular boss 32 abuts against the upper end of the wellbore 2. The surrounding of the main well chamber 1 and the wellbore 2 is backfilled with rammed earth or sand used for the road surface cushion. When backfilling to the position of the manhole cover support 3, the manhole cover support 3 can be manually lifted upward and the backfilling of the lower end of the manhole cover support 3 can continue until the manhole cover support 3 rises along the wellbore 2 to a height flush with the ground surface. Since the manhole cover support 3 is sleeved on the outside of the wellbore 2, the backfilled earth or sand can support the manhole cover support 3 to prevent the manhole cover support 3 from sliding down or settling. On the other hand, during the assembly process, if the manhole cover support 3 is lifted too high, the rammed earth at the lower end and around the manhole cover support 3 can be manually dug out, or a press can be used to cooperate for downward pressing treatment to lower the manhole cover support 3. This method of adjusting the height of the manhole cover support 3 is simple and effective, can cope with the heights of different ground surfaces, and is convenient for construction, improving the assembly efficiency.

[0024] It should be noted that the height of the manhole cover support 3 is a preset height, which can be precast according to the height difference of the ground at the assembled position. When assembling on the ground with a large height difference, the height of the manhole cover support 3 can be appropriately increased to increase the lifting and adjusting range of the manhole cover support 3. And when the manhole cover support 3 slides down along the wellbore 2 to the lowest position, the upper end of the manhole cover support 3 should be lower than the ground surface height of the assembled position, leaving a space for the manhole cover support to be adjusted downward.

[0025] Please refer to Figure 3, Further, in order to improve the sealing performance between the manhole cover support 3 and the wellbore 2, a first sealing ring 31 is annularly arranged on the inner side wall of the manhole cover support 3. The first sealing ring 31 is close to the lower end of the manhole cover support 3. After the manhole cover support 3 is sleeved on the wellbore 2, the first sealing ring 31 can be clamped between the manhole cover support 3 and the wellbore 2 to make the manhole cover support 3 and the wellbore 2 be hermetically connected to each other. The first sealing ring 31 is a rubber ring and is embedded in the inner side wall of the manhole cover support 3. When the manhole cover support 3 slides up and down along the wellbore 2, the first sealing ring 31 moves with the manhole cover support 3.

[0026] Please continue to refer to Figure 1 and Figure 2 , on the outer walls of the opposite two sides of the main well chamber 1, a socket 11 and a spigot 12 communicating with its inner cavity are respectively arranged. The socket 11 and the spigot 12 are respectively used to connect the municipal drainage pipe 6. In order to improve the strength of the socket 11 and the spigot 12, a reinforcing wall 13 surrounding the socket 11 and the spigot 12 is arranged on the outer wall of the main well chamber 1. The reinforcing wall 13 is integrally cast with the main well chamber 1. A second sealing ring 16 is annularly arranged on the inner wall of the socket 11, and a third sealing ring 17 is annularly arranged on the outer wall of the spigot 12. Both the second sealing ring 16 and the third sealing ring 17 are rubber rings, and the second sealing ring 16 and the third sealing ring 17 are fixed by means of grooves on the outer wall of the spigot 12 and the inner wall of the socket 11. And, a support platform 14 extending outward is arranged at the lower end of the socket 11. The support platform 14 is also integrally cast with the reinforcing wall 13 and the main well chamber 1. The support platform 14 is used to provide a supporting force for the municipal drainage pipe 6 inserted into the socket 11 and further strengthens the strength of the socket 11.

[0027] , Further, a base 15 is annularly arranged at the lower end of the main well chamber 1. The diameter of the base 15 is larger than the outer diameter of the main well chamber 1 and is integrally cast with the main well chamber 1. The base 15 can increase the bottom area of the main well chamber 1, improve the supporting force of the main well chamber 1 under the roadbed, and reduce the risk of settlement of the main well chamber 1.

[0028] In the above embodiments, the main well chamber 1 and the wellbore 2 are also connected by means of insertion. Specifically, a socket 18 communicating with its inner cavity is provided at the upper end of the main well chamber 1, and an insertion port 21 matching the socket 18 is provided at the bottom of the wellbore 2. The wellbore 2 is inserted into the socket 18 of the main well chamber 1 through the insertion port 21. A fourth sealing ring 19 is annularly arranged on the socket 18 or the insertion port 21. The fourth sealing ring 19 is also a rubber ring, and the insertion part of the wellbore 2 and the main well chamber 1 is sealed by the fourth sealing ring 19. For more convenient hoisting, hoisting holes 5 are provided on the opposite sides of the outer walls of the wellbore 2 and the main well chamber 1. A lifting tool is installed on the hoisting holes 5 to facilitate the hoisting of the wellbore 2 and the main well chamber 1 by a crane.

[0029] A manhole cover 4 matching the upper end of the manhole cover support 3 is provided.

[0030] A ladder 22 for workers to go down the well is provided on the inner wall of the wellbore 2.

[0031] The above-disclosed are only the preferred embodiments of the present invention. Of course, the scope of rights of the present invention cannot be limited thereby. Those of ordinary skill in the art can understand all or part of the processes of implementing the above embodiments, and the equivalent changes made according to the claims of the present invention still fall within the scope covered by the present invention.

Claims

1. A split-type municipal drainage inspection well that can be raised and lowered, characterized in that: It includes a main well chamber, a well shaft and a well cover support which are arranged in sequence from bottom to top. The main well chamber and the well shaft can be separated from each other and can be sealed and connected to each other. The well cover support can be detachably sleeved on the upper end of the well shaft and can be freely raised and lowered along the well shaft for height adjustment.

2. The split-type municipal drainage inspection well that can be raised and lowered as claimed in claim 1 is characterized in that: A first sealing ring is annularly arranged on the inner wall of the manhole cover support, and the first sealing ring is close to the lower end of the manhole cover support. After the manhole cover support is sleeved on the wellbore, the first sealing ring can be clamped between the manhole cover support and the wellbore to make the manhole cover support and the wellbore sealed and connected to each other.

3. The liftable and adjustable split-type municipal drainage inspection well as claimed in claim 1 is characterized in that: The outer walls on both sides opposite to each other of the main well chamber are respectively provided with a socket and a plug connected with the inner cavity thereof.

4. The liftable and adjustable split-type municipal drainage inspection well as claimed in claim 3 is characterized in that: A reinforcing wall is arranged on the outer wall of the main well chamber to surround the socket and the plug, and the reinforcing wall is integrally cast with the main well chamber.

5. The split-type municipal drainage inspection well capable of lifting and lowering as claimed in claim 4 is characterized in that: The lower end of the socket is also provided with a support platform extending outward, and the support platform is integrally cast with the reinforcement wall.

6. The liftable and adjustable split-type municipal drainage inspection well as claimed in claim 5 is characterized in that: A base is provided in an annular manner at the lower end of the main well chamber. The diameter of the base is larger than the outer diameter of the main well chamber, and the base is cast integrally with the main well chamber.

7. The liftable and adjustable split-type municipal drainage inspection well as claimed in claim 5 is characterized in that: A second sealing ring is annularly arranged on the inner wall of the socket.

8. The liftable and adjustable split-type municipal drainage inspection well as claimed in claim 5 is characterized in that: A third sealing ring is annularly arranged on the outer wall of the socket.

9. The liftable and adjustable split-type municipal drainage inspection well as claimed in claim 1 is characterized in that: The upper end of the main well chamber is provided with a socket connected to its inner cavity, and the bottom of the well shaft is provided with a plug interface matching the socket. A fourth sealing ring is annularly arranged on the socket or the plug interface, and the well shaft is detachably plugged into the upper end of the main well chamber.

10. The liftable and adjustable split-type municipal drainage inspection well according to claim 1 is characterized in that: The upper end of the manhole cover support is provided with a manhole cover matching with it.

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