Prefabricated inspection well
By setting a sealing ring on the inner wall of the connection hole of the inspection well, especially the combination of airbag ring and support ring, the sealing problem between the well body and the external pipeline is solved, achieving a higher sealing effect and reducing the risk of sewage infiltration and internal dirt.
Patent Information
- Application Number
- CN202423286200.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-30
- Publication Date
- 2025-12-02
- Estimated Expiration
- 2034-12-30
AI Technical Summary
In existing inspection wells, the sealing effect between the connection hole of the well body and the external pipeline is poor, which causes sewage to seep into the well body and affect the internal facilities.
Multiple sealing rings, including airbag rings and support rings, are installed on the inner side wall of the connection hole of the well body. The airbag rings are tightly fitted onto the external pipe, and the support rings provide support. The airbag rings expand and come into close contact with the support rings to improve the sealing effect.
It improves the sealing effect between the connection hole and the external pipe, reduces the risk of sewage seeping into the well body, and reduces internal dirt and its impact on the facility.
Smart Images
Figure CN223620957U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of inspection wells, and in particular to a prefabricated inspection well. Background Technology
[0002] Inspection wells are installed to facilitate the maintenance and installation of underground infrastructure such as power supply, water supply, drainage, sewage, communications, cable TV, gas pipes, and street light lines in cities. They are generally located at pipe intersections, bends, changes in pipe diameter or slope, and at regular intervals on straight pipe sections to facilitate the periodic inspection of ancillary structures.
[0003] Inspection wells in related technologies typically employ prefabricated structures, including a well casing and a cover. The well casing has connection holes for pipes to pass through. An installation trench is excavated at a designated location on the ground, and the well casing is lowered into the trench using lifting equipment. The pipes are then passed through the connection holes. Subsequently, the cover is placed over the well casing, and the installation trench is backfilled, thus completing the installation of the inspection well.
[0004] However, the sealing effect between the connection hole of the manhole body and the external pipe in the relevant technology is relatively poor. During the use of the inspection manhole, underground sewage will seep into the manhole body through the gap between the external pipe and the connection hole. This will not only cause dirt inside the manhole body, but also affect the facilities inside the manhole body, which needs to be improved. Utility Model Content
[0005] To address the shortcomings of existing technologies, the purpose of this utility model is to provide a prefabricated inspection well that can improve the sealing effect between the connection hole of the well body and the external pipeline, reduce the risk of sewage seeping into the interior of the well body, reduce the risk of dirt inside the well body, and also reduce the impact on other facilities inside the well body.
[0006] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a prefabricated inspection well, including a well body and a well cover, wherein a connecting hole is provided on the well body, and a plurality of sealing rings are provided on the inner sidewall of the connecting hole along its circumference, the plurality of sealing rings being coaxial, and the sealing rings being able to be tightly fitted onto an external pipe.
[0007] Each of the sealing rings includes an airbag ring and a pair of support rings. The airbag ring and the pair of support rings are fixedly connected to the inner wall of the connecting hole. The airbag ring is located between the pair of support rings, and the inner diameter of the airbag ring is smaller than the inner diameter of the support ring.
[0008] In a preferred embodiment, the present invention can be further configured such that the two sides of the airbag ring are respectively in close contact with the corresponding support ring.
[0009] In a preferred embodiment, the present invention can be further configured such that: a relief ring groove is provided on one side of each pair of support rings that are close to each other, so that when the airbag ring is squeezed by an external pipe and undergoes elastic deformation, the two sides of the airbag ring can be embedded in the corresponding relief ring groove.
[0010] In a preferred embodiment, the present invention can be further configured such that the support ring includes a support frame and a support layer, the support frame being made of metal material, and the support layer being made of elastic rubber and vulcanized and fixed to the support frame.
[0011] In a preferred embodiment, the present invention can be further configured such that: a plurality of lifting rings are fixed at the upper end of the side wall of the well body, and the plurality of lifting rings are arranged at equal intervals along the circumference of the well body.
[0012] In a preferred embodiment, the present invention can be further configured such that an elastic shock-absorbing ring is provided at the bottom of the well body along its circumference.
[0013] In a preferred embodiment, the present invention can be further configured such that: a sealing ring is provided at the edge of the bottom of the manhole cover, and a sealing groove is provided at the top of the manhole body for the sealing ring to be inserted.
[0014] In summary, this utility model has the following beneficial effects:
[0015] 1. By setting a sealing ring on the inner wall of the connection hole, and the sealing ring being able to fit tightly onto the external pipe, the sealing effect between the connection hole of the well body and the external pipe is improved, reducing the risk of sewage seeping into the interior of the well body. This not only reduces the risk of dirt inside the well body, but also reduces the impact on other facilities inside the well body.
[0016] 2. When the airbag ring is squeezed by the external pipe, it expands and tightly contacts the external pipe and a pair of support rings, thereby improving the sealing effect between the external pipe and the well body and reducing the risk of groundwater seeping into the well body. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the overall structure of the embodiment;
[0018] Figure 2 yes Figure 1 Enlarged view of region A in the middle;
[0019] Figure 3 yes Figure 1 Enlarged schematic diagram of region B in the middle.
[0020] Reference numerals in the attached drawings: 1. Well body; 2. Well cover; 3. Connecting hole; 4. Sealing ring; 41. Airbag ring; 42. Support ring; 421. Support frame; 422. Support layer; 43. Relief ring groove; 5. Sealing ring; 6. Sealing groove; 7. Lifting ring; 8. Shock-absorbing ring. Detailed Implementation
[0021] The present invention will be further described in detail below with reference to the accompanying drawings.
[0022] Reference Figure 1 A prefabricated inspection well includes a well body 1 and a well cover 2, and the well body 1 is provided with a connection hole 3 for an external pipe to pass through. The inner sidewall of the connection hole 3 is provided with a plurality of sealing rings 4 along its circumference. The plurality of sealing rings 4 are coaxial. When the external pipe passes through the connection hole 3, the sealing rings 4 can be tightly fitted on the external pipe to achieve a seal between the external pipe and the well body 1.
[0023] Reference Figure 1 , Figure 2 Each sealing ring 4 includes an airbag ring 41 and a pair of support rings 42, which are fixedly connected to the inner wall of the connecting hole 3. The airbag ring 41 is located between the pair of support rings 42, and both sides of the airbag ring 41 are in close contact with the corresponding support rings 42. At the same time, the inner diameter of the airbag ring 41 is smaller than the inner diameter of the support rings 42.
[0024] When the external pipe passes through the connection hole 3, the airbag ring 41 is squeezed by the external pipe and expands. At this time, the airbag ring 41 is tightly abutted against the external pipe and a pair of support rings 42, thereby improving the sealing effect between the external pipe and the well body 1, reducing the risk of sewage seeping into the interior of the well body 1, reducing the risk of dirt inside the well body 1, and also reducing the impact on other facilities inside the well body 1.
[0025] Reference Figure 2 Each of the two support rings 42 has a relief ring groove 43 on one side that is close to each other. When the airbag ring 41 is squeezed by the external pipe and undergoes elastic deformation, the two sides of the airbag ring 41 can be embedded in the corresponding relief ring groove 43, thereby improving the sealing effect between the airbag ring 41 and the support ring 42.
[0026] Reference Figure 2 The support ring 42 includes a support frame 421 and a support layer 422. The support frame 421 is made of metal, and the support layer 422 is made of elastic rubber and is vulcanized and fixed to the support frame 421. This design can improve the structural strength of the support ring 42 to ensure the tight fit between the airbag ring 41 and the support ring 42. At the same time, the rubber support layer 422 can also improve the sealing effect between the support ring 42 and the external pipe.
[0027] Reference Figure 1 , Figure 3 A rubber sealing ring 5 is fixedly connected to the edge of the bottom of the manhole cover 2, and a sealing groove 6 is provided on the top of the manhole body 1 for the sealing ring 5 to be inserted into, so as to improve the sealing effect between the manhole body 1 and the manhole cover 2.
[0028] Reference Figure 1 Multiple lifting rings 7 are fixed at the upper end of the side wall of the well body 1. The lifting rings 7 are arranged at equal intervals along the circumference of the well body 1 to facilitate the lifting and transportation of the inspection well by the staff. Elastic shock-absorbing rings 8 are provided along the circumference of the bottom of the well body 1. The shock-absorbing rings 8 are made of rubber or latex to achieve the buffering and shock absorption effect during the transportation of the inspection well.
[0029] The specific embodiments are merely explanations of this utility model and are not intended to limit it. After reading this specification, those skilled in the art can make modifications to these embodiments without contributing any inventive step, but such modifications are protected by patent law as long as they fall within the scope of the claims of this utility model.
Claims
1. A prefabricated inspection well, comprising a well body (1) and a well cover (2), wherein the well body (1) is provided with a connecting hole (3), characterized in that: The inner wall of the connecting hole (3) is provided with a plurality of sealing rings (4) along its circumference. The plurality of sealing rings (4) are coaxial and can be tightly fitted onto the external pipe. Each of the sealing rings (4) includes an airbag ring (41) and a pair of support rings (42). The airbag ring (41) and the pair of support rings (42) are fixedly connected to the inner wall of the connecting hole (3). The airbag ring (41) is located between the pair of support rings (42), and the inner diameter of the airbag ring (41) is smaller than the inner diameter of the support rings (42).
2. A prefabricated inspection well according to claim 1, characterized in that: The two sides of the airbag ring (41) are respectively in close contact with the corresponding support ring (42).
3. A prefabricated inspection well according to claim 2, characterized in that: Each of the pair of support rings (42) has a relief ring groove (43) on one side that is close to each other. When the airbag ring (41) is squeezed by the external pipe and undergoes elastic deformation, the two sides of the airbag ring (41) can be embedded in the corresponding relief ring groove (43).
4. A prefabricated inspection well according to claim 2, characterized in that: The support ring (42) includes a support frame (421) and a support layer (422). The support frame (421) is made of metal material, and the support layer (422) is made of elastic rubber and is vulcanized and fixed to the support frame (421).
5. A prefabricated inspection well according to claim 1, characterized in that: Multiple lifting rings (7) are fixed at the upper end of the side wall of the well body (1), and the multiple lifting rings (7) are arranged at equal intervals along the circumference of the well body (1).
6. A prefabricated inspection well according to claim 1, characterized in that: The bottom of the well body (1) is provided with an elastic shock-absorbing ring (8) along its circumference.
7. A prefabricated inspection well according to claim 1, characterized in that: A sealing ring (5) is provided at the bottom edge of the manhole cover (2), and a sealing groove (6) is provided at the top of the manhole body (1) for the sealing ring (5) to be inserted.