Inspection well connector

The combined design of the sleeve and rubber sleeve solves the leakage problem at the connection between the inspection well and the pipeline, achieving sealing and durability, simplifying the construction process, reducing costs, adapting to uneven settlement, and improving the service life of the inspection well.

CN223867376UActive Publication Date: 2026-02-03WUXI MUNICIPAL DESIGN INST
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Patent Information

Application Number
CN202520122083.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-17
Publication Date
2026-02-03
Estimated Expiration
2035-01-17

AI Technical Summary

Technical Problem

Existing manholes and pipe connections are prone to leakage, leading to sewage seepage and underground flow, which affects the environment and increases the load on the drainage system. In addition, traditional interface designs are complex, costly, and lack adaptability and durability.

Method used

The system employs a sleeve and rubber tube structure. The outer circumference of the sleeve is fixedly connected to a positioning ring, and the inner circumference of the rubber tube is equipped with a sealing ring. It is fitted onto the outer wall of the pipe and a sealing connection is achieved through the sealing ring. The combination of rigid sleeve and flexible rubber tube design can adapt to uneven settlement.

Benefits of technology

It effectively prevents leakage, reduces construction costs, improves construction convenience and durability, has good adaptability, reduces maintenance frequency, and enhances the overall lifespan and seepage prevention capability of inspection wells.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223867376U_ABST
Patent Text Reader

Abstract

The utility model discloses an inspection well connector, and relates to the technical field of municipal drainage engineering. The inspection well connector comprises a sleeve and a rubber cylinder, a positioning ring is fixedly connected to the periphery of the sleeve, the sleeve is arranged on the periphery of the middle of the rubber cylinder in a sleeving mode, the two ends of the rubber cylinder are turned over and arranged on the periphery of the sleeve and the periphery of the positioning ring in a sleeving mode, and a sealing ring is arranged on the inner periphery of the rubber cylinder. The rubber cylinder is arranged on the outer wall of a pipeline in a sleeving mode and connected with the pipeline in a sealed mode through the sealing ring, and the rubber cylinder arranged on the periphery of the sleeve and the periphery of the positioning ring in a sleeving mode abuts against the interior of the inspection well. The inspection well connector is simple in structure, low in manufacturing cost, economical, practical, easy and convenient to construct, good in adaptability and good in durability, and the leakage problem caused by connector falling and damage due to the influence of construction or foundation settlement after a pipeline is connected with an inspection well can be effectively solved.
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Description

TECHNICAL FIELD

[0001] The utility model relates to municipal drainage engineering technical field especially, relate to a kind of inspection well interface. BACKGROUND

[0002] In municipal drainage system, gravity drainage pipe network plays a vital role, and its effective operation depends on the integrity and coordination of each component. Inspection well, as a key node of gravity drainage pipe network, not only serves for the daily maintenance and repair of pipe network, but also undertakes the functions of adjusting water flow and intercepting impurities. At present, the widely used inspection well types mainly include cast-in-place reinforced concrete well, precast reinforced concrete well and brick well, etc. These inspection wells have different structures, but they all meet the basic needs of drainage system to some extent.

[0003] However, in actual operation process, these inspection wells generally face a common problem: after a long time of use, leakage phenomenon is easy to occur at the connection between inspection well and pipe. This leakage not only leads to sewage seepage, polluting the surrounding environment, but also may cause external water infiltration, further increasing the load of drainage system, and even in some cases, the seepage sewage will form underground current, carry and flush silt, and finally lead to the formation of underground cavity, posing potential threat to ground structure. In addition, improper seepage of sewage may also directly pollute the nearby river water body, seriously affecting the ecological environment.

[0004] For the problem of inspection well interface leakage, the traditional method often has difficulty in providing effective solution. On the one hand, affected by construction accuracy, material performance and foundation settlement and other factors, the interface between inspection well and pipe is easy to loosen or damage, thus causing leakage. On the other hand, the existing inspection well interface design is often complex in structure, not only increasing the manufacturing cost, but also making the construction more difficult, and there are deficiencies in adaptability and durability. For example, although some interface designs consider the sealing performance, in actual application, due to factors such as material aging and external force, the sealing effect is often difficult to maintain for a long time.

[0005] In view of the above problems, it is urgent to design a new type of inspection well interface to effectively cope with construction errors, foundation settlement and other adverse factors, and ensure that the interface maintains good sealing performance in long-term operation. At the same time, the inspection well interface should also pay attention to simplifying the structure, reducing the cost, improving the construction convenience and enhancing the adaptability and durability, in order to meet the higher requirements of modern drainage system for inspection well interface. UTILITY MODEL CONTENTS

[0006] In order to solve the above problems, the utility model provides a kind of inspection well interface, the inspection well interface simple structure, low in manufacturing cost, economic and practical, simple and convenient construction, good adaptability, good durability, can effectively solve the leakage problem caused by the interface shedding, damage caused by the influence of construction or foundation settlement after pipeline connection inspection well.

[0007] The utility model discloses a kind of inspection well interfaces, including sleeve and rubber cylinder, the sleeve outer periphery is fixedly connected with positioning ring, the sleeve sleeve is set in the outer periphery of the rubber cylinder middle position, the both ends of the rubber cylinder are folded and sleeve are set in the outer periphery of the sleeve and the positioning ring, the inner periphery of the rubber cylinder is provided with sealing ring, the rubber cylinder sleeve is set in the outer wall of pipeline, and sealing connection between with pipeline is passed through the sealing ring, rubber cylinder sleeve set in the outer periphery of the sleeve and the positioning ring is abutted in inspection well.

[0008] In an embodiment of the utility model, the sleeve is a hollow cylindrical structure.

[0009] In an embodiment of the utility model, the rubber cylinder is a hollow cylindrical structure.

[0010] In an embodiment of the utility model, the number of the positioning ring is two, and the two positioning rings are evenly distributed on the outer periphery of the sleeve.

[0011] In an embodiment of the utility model, the both ends of the rubber cylinder are respectively sleeve set in the outer periphery of two positioning rings, and are respectively fixedly connected with two positioning rings.

[0012] In an embodiment of the utility model, the sleeve is nodular cast iron pipe or stainless steel pipe.

[0013] In an embodiment of the utility model, the material of the rubber cylinder is nitrile rubber.

[0014] In an embodiment of the utility model, the inner wall and the outer wall of the sleeve are both provided with a plastic layer between the rubber cylinder.

[0015] The utility model has the following beneficial effects:

[0016] (1) the utility model provides a kind of inspection well interface, effectively sealed structure is adopted, so that the interface between pipeline and inspection well can be well sealed, can effectively avoid leakage.

[0017] (2) the utility model provides a kind of inspection well interface, rubber cylinder of flexible material is used, so that pipeline and inspection well are flexibly connected, can effectively solve the interface leakage and rupture caused by uneven settlement between inspection well and pipeline.

[0018] (2) The utility model provides a kind of inspection well interface, with good engineering practicality, convenient construction, simple structure, low cost, easy to make and install, good durability, with extensive popularization and application prospect. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a top view of the inspection well interface provided by the utility model.

[0020] Figure 2 It is a perspective view of the inspection well interface provided by the utility model.

[0021] Figure 3 It is a perspective view of the sleeve provided by the utility model.

[0022] Figure 4 It is a perspective view of the rubber cylinder provided by the utility model.

[0023] In the drawing: 1, sleeve; 2, positioning ring; 3, rubber cylinder; 4, sealing ring. DETAILED DESCRIPTION

[0024] The utility model will be further explained in detail in combination with the drawings and examples. It can be understood that the specific examples described here are only used to explain the utility model, not to limit the utility model. In addition, it should be noted that, for the convenience of description, only part of the structure related to the utility model is shown in the drawing, not all the structures.

[0025] In the utility model, unless there is explicit provision and limitation, the terms "connected", "connected", "fixed" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integrated; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through intermediate medium, it can be the communication inside two elements or the interaction relationship of two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to specific circumstances.

[0026] In the utility model, unless there is explicit provision and limitation, the first feature "on" or "under" the second feature can include that the first and second features are in direct contact, or the first and second features are not in direct contact but in contact through another feature between them. Moreover, the first feature "on", "above" and "above" the second feature includes that the first feature is directly above and obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature "under", "below" and "below" the second feature includes that the first feature is directly below and obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0027] Refer toFigures 1-4 The utility model provides a kind of inspection well interface, including sleeve 1 and rubber cylinder 3, the sleeve 1 outer periphery is fixedly connected with positioning ring 2, the sleeve 1 is set in the outer periphery of the middle position of the rubber cylinder 3, the both ends of the rubber cylinder 3 are folded and set in the outer periphery of the sleeve 1 and the positioning ring 2, the inner periphery of the rubber cylinder 3 is provided with sealing ring 4, the rubber cylinder 3 is set in the outer wall of pipeline, and sealing connection between with pipeline is passed through the sealing ring 4, rubber cylinder 3 that is set in the outer periphery of the sleeve 1 and the positioning ring 2 is abutted in inspection well.

[0028] In some embodiments, the sleeve 1 is a hollow cylindrical structure.

[0029] In some embodiments, the rubber cylinder 3 is a hollow cylindrical structure.

[0030] In some embodiments, the number of positioning rings 2 is two, and the two positioning rings 2 are uniformly distributed on the outer periphery of the sleeve 1.

[0031] In some embodiments, the both ends of the rubber cylinder 3 are respectively set in the outer periphery of the two positioning rings 2 and are respectively fixedly connected with the two positioning rings 2.

[0032] In the present embodiment, the positioning ring 2 functions to fix the rubber cylinder 3, and by folding the both ends of the rubber cylinder 3, the both ends of the rubber cylinder 3 are set in the outer periphery of the sleeve 1 and are tightly fixed on the positioning ring 2.

[0033] In some embodiments, the sleeve 1 is a ductile cast iron pipe or a stainless steel pipe.

[0034] In the present embodiment, the sleeve 1 is made of ductile cast iron or stainless steel, which can effectively guarantee the structural strength, improve the corrosion resistance, and thus prolong the service life of the entire inspection well interface and improve the durability.

[0035] In some embodiments, the material of the rubber cylinder 3 is nitrile rubber.

[0036] In the present embodiment, the rubber cylinder 3 is made of nitrile rubber, which has excellent corrosion resistance and oxidation resistance and can be immersed in water for a long time without affecting its function. The sealing ring 4 can be made of high-quality materials to have good corrosion resistance and tensile resistance.

[0037] In some embodiments, a plastic layer is arranged between the inner wall and the outer wall of the sleeve 1 and the rubber cylinder 3.

[0038] In the present embodiment, the inner wall and the outer wall of the sleeve 1 are both provided with a plastic layer, which can further strengthen the sealing property of the connection between the rubber cylinder 3 and the sleeve 1, improve the impermeability, cope with the high water pressure in the inspection well, and realize long-term impermeability of high water.

[0039] The specific working principle of the inspection well interface is as follows:

[0040] The rubber cylinder 3 is combined with the sleeve 1, the sleeve 1 is sleeved on the outer periphery of the middle position of the rubber cylinder 3, both ends of the rubber cylinder 3 are folded, are sleeved on the outer periphery of the sleeve 1 and the positioning ring 2, and are fixedly connected with the positioning ring 2, so that the assembly of the sleeve 1 and the rubber cylinder 3 is completed. The interface is installed in the inspection well, and after the construction of the inspection well is completed, the pipeline is inserted into the rubber cylinder 3 on the inner wall of the sleeve 1, and the rubber cylinder 3 and the sealing ring 4 are used to complete the sealing of the pipeline and the inspection well.

[0041] In summary, the inspection well interface provided by the utility model guarantees normal use of the pipeline, and also guarantees that the interface between the inspection well and the pipeline will not leak when uneven settlement occurs, further enhances the durability of the inspection well, reduces the maintenance frequency of the inspection well, and improves the overall service life of the inspection well. The sleeve made of rigid material is used inside the inspection well interface, the rubber cylinder made of flexible material is sleeved on the inner and outer walls of the sleeve, is sealed and connected between the pipeline and the inspection well, can form effective sealing between the pipeline and the inspection well, and avoids leakage. In addition, in the use process of the inspection well interface, only the two ends of the rubber cylinder need to be folded and sleeved on the outer periphery of the sleeve and the positioning ring, and fixedly connected with the positioning ring, so that the structure is simple, the manufacturing cost is low, it is economic and practical, construction is simple and convenient, maintenance is convenient, adaptability is good, durability is good, has good engineering practicality, can effectively solve the leakage problem caused by interface falling off and damage due to the influence of construction or foundation settlement after the pipeline is connected with the inspection well, and has wide popularization and application prospects. In addition, the inspection well interface can be adapted to inspection wells of different sizes by only replacing the sleeve and the rubber cylinder of different sizes, can effectively improve the anti-seepage capacity of the inspection well, has high flexible adaptability, improves the construction speed of the inspection well, can effectively reduce the construction period, and increases the structural performance of the inspection well.

[0042] The technical features of the above embodiments can be combined arbitrarily, and to make the description concise, all possible combinations of the technical features in the above embodiments are not described, but as long as the combinations of the technical features do not exist contradictory, they should be considered as the scope of the description.

[0043] The above embodiments only express several implementation manners of the utility model, the description is more specific and detailed, but it should not be understood as a limitation on the scope of the utility model patent. It should be pointed out that for ordinary skilled persons in the art, on the premise of not departing from the concept of the utility model, a number of modifications and improvements can be made, which belong to the protection scope of the utility model.

[0044] This document uses specific embodiments to illustrate the principles and implementation methods of this utility model. The descriptions of these embodiments are merely for the purpose of helping to understand the method and core ideas of this utility model. It should be noted that those skilled in the art can make various improvements and modifications to this utility model without departing from its principles, and these improvements and modifications also fall within the protection scope of the claims of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A manhole interface, characterized in that, The device includes a sleeve (1) and a rubber tube (3). A positioning ring (2) is fixedly connected to the outer periphery of the sleeve (1). The sleeve (1) is fitted around the outer periphery of the middle part of the rubber tube (3). The two ends of the rubber tube (3) are folded over and fitted around the outer periphery of the sleeve (1) and the positioning ring (2). A sealing ring (4) is provided on the inner periphery of the rubber tube (3). The rubber tube (3) is fitted around the outer wall of the pipe and is sealed to the pipe through the sealing ring (4). The rubber tube (3) fitted around the outer periphery of the sleeve (1) and the positioning ring (2) abuts against the manhole.

2. The inspection well interface according to claim 1, characterized in that, The sleeve (1) is a hollow cylindrical structure.

3. The inspection well interface according to claim 1, characterized in that, The rubber tube (3) has a hollow cylindrical structure.

4. A manhole interface according to claim 1, characterized in that, There are two positioning rings (2), and the two positioning rings (2) are evenly distributed on the outer periphery of the sleeve (1).

5. A manhole interface according to claim 4, characterized in that, The two ends of the rubber cylinder (3) are respectively fitted onto the outer periphery of the two positioning rings (2) and are respectively fixedly connected to the two positioning rings (2).

6. A manhole interface according to claim 1, characterized in that, The sleeve (1) is a ductile iron pipe or a stainless steel pipe.

7. A manhole interface according to claim 1, characterized in that, The rubber cylinder (3) is made of nitrile rubber.

8. A manhole interface according to claim 1, characterized in that, A plastic layer is provided between the inner and outer walls of the sleeve (1) and the rubber cylinder (3).