Connecting structure of prefabricated inspection well and drainage pipeline

Abstract

The utility model belongs to the field of drainage pipeline construction, and discloses a connecting structure of a prefabricated inspection well and a drainage pipeline, a fixing ring is pre-buried in the hole opening of a reserved opening of the inspection well on the inner wall side of the well, a sleeve is installed on the fixing ring, and an annular end cover connected with the drainage pipeline in an inserted mode is installed at the end of the sleeve. An enclosed space is formed among the annular end cover, the sleeve, the outer wall of the drainage pipeline and the reserved opening, and a sealant injection opening is further formed in the annular end cover and used for injecting sealant into the enclosed space. According to the utility model, a reliable sealing measure is formed between the drainage pipeline and the reserved hole by using the annular end cover, the sleeve and the sealant, so that the sealing performance of the drainage pipeline and the reserved hole of the inspection well can be greatly improved, and the percent of pass of a one-time water closing test is further improved.

Description

Technical Field

[0001] The utility model belongs to the field of drainage pipeline construction, in particular to a connection structure of a prefabricated inspection well and a drainage pipeline. Background Art

[0002] At present, more and more prefabricated inspection wells are used in the construction of rainwater and sewage pipelines. This process has largely solved the disadvantages of traditional inspection wells such as long construction period and poor stability. However, the interface of prefabricated inspection wells is difficult to handle and there will be water seepage. The qualified rate of one-time water-tightness test is an important indicator for checking construction quality. Therefore, how to improve the sealing of the connection between the inspection well and the pipeline to reduce water seepage and improve the qualified rate of one-time water-tightness test is an urgent problem to be solved. Utility Model Content

[0003] The utility model aims to solve the problem of water seepage at the interface between the prefabricated inspection well and the pipeline in the prior art. To this end, the utility model provides a connection structure between the prefabricated inspection well and the drainage pipeline, which can greatly improve the sealing performance of the interface between the inspection well and the pipeline, thereby improving the qualified rate of the one-time water-tightness test.

[0004] The technical solution adopted by the utility model to solve its technical problems is:

[0005] Provided is a connection structure between a prefabricated inspection well and a drainage pipe, wherein the opening of a reserved opening of the inspection well is located on the inner wall side of the well and a fixing ring is pre-buried, a sleeve is installed on the fixing ring, and an annular end cover plugged into the drainage pipe is installed on the end of the sleeve; an enclosed space is formed among the annular end cover, the sleeve, the outer wall of the drainage pipe and the reserved opening, and a glue injection port is also provided on the annular end cover for injecting sealant into the enclosed space.

[0006] Preferably, a first sealing ring for sealing with the inner wall of the drainage pipe is provided on the socket of the annular end cover.

[0007] Preferably, the drainage pipe is provided with a second sealing ring for sealing with the reserved opening.

[0008] Preferably, the sleeve is made of colorless and transparent organic glass.

[0009] Preferably, the annular end cover is also made of colorless and transparent organic glass.

[0010] Preferably, the sealant is polyurethane sealant.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] 1. The utility model uses an annular end cover, a sleeve, and a sealant to form a reliable sealing measure between the drainage pipe and the reserved hole, which can greatly improve the sealing performance of the drainage pipe and the reserved hole of the inspection well, thereby improving the qualified rate of the one-time water-tightness test;

[0013] 2. The first sealing ring provided on the socket of the annular end cover and the second sealing ring provided on the drainage pipe further improve the sealing performance between the drainage pipe and the reserved opening of the inspection well. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative work, among which:

[0015] Figure 1 It is a cross-sectional view of the connection structure between the prefabricated inspection well and the drainage pipe provided by the utility model;

[0016] Figure 2 yes Figure 1 A partial enlarged image is provided

[0017] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0018] 1—inspection well, 1.0—reserved opening, 2—drainage pipe, 3—fixing ring, 4—casing, 5—ring-shaped end cover, 5.1—socket, 5.2—glue injection port, 6—sealant, 7—first sealing ring, 8—second sealing ring. DETAILED DESCRIPTION

[0019] It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicating positions or positional relationships are based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific position, be constructed and operate in a specific position, and therefore cannot be understood as limiting the present invention;

[0022] In addition, the descriptions involving the terms "first", "second", etc. in the present utility model are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. The terms "installed", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal connection of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0023] In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the fact that ordinary technicians in the field can implement it. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.

[0024] Embodiment: This embodiment provides a connection structure between a prefabricated inspection well and a drainage pipe, as shown in the attached Figure 1 and attached Figure 2 As shown, the reserved opening 1.0 of the inspection well 1 is located on the inner wall of the well and a fixing ring 3 is pre-buried. A sleeve 4 is installed on the fixing ring 3. The end of the sleeve 4 is installed with an annular end cap 5 plugged into the drainage pipe 2. Specifically, as shown in the attached Figure 2 As shown, flanges are provided at both ends of the sleeve, which are fixedly connected to the annular end cover and the fixing ring by screws respectively. The inner ring of the annular end cover 5 is provided with a socket 5.1, which is used to be plugged into the inner wall of the drainage pipe 2. An enclosed space is formed between the annular end cover 5, the sleeve 4, the inserted drainage pipe 2 and the reserved opening 1.0. Preferably, a glue injection port 5.2 is also provided on the annular end cover 5, and a sealant 6 is injected into the enclosed space through the glue injection port 5.2 to form a sealing measure, and the sealant 6 is preferably made of polyurethane sealant. This embodiment uses an annular end cover, a sleeve, and a sealant to form a reliable sealing measure between the drainage pipe and the reserved hole, which can greatly improve the sealing of the drainage pipe and the reserved opening of the inspection well, thereby improving the qualified rate of the one-time water-tightness test.

[0025] Preferably, the socket 5.1 of the annular end cover 5 is provided with a first sealing ring 7 for sealing with the inner wall of the drainage pipe 2. Furthermore, the drainage pipe 2 is provided with a second sealing ring 8 for sealing with the reserved opening 1.0. The provision of the first sealing ring and the second sealing ring further improves the sealing performance between the drainage pipe and the reserved opening of the inspection well.

[0026] Preferably, the sleeve 4 is made of colorless and transparent organic glass, so as to facilitate observation of the injection of the sealant.

[0027] Preferably, the annular end cover 5 is also made of colorless and transparent organic glass, so as to facilitate observation of the docking condition between the annular end cover and the drainage pipe.

[0028] Preferably, the outer wall where the drainage pipe 2 is connected to the reserved opening 1.0 is roughened to increase the adhesion of the sealant.

[0029] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A connection structure between a prefabricated inspection well and a drainage pipe, characterized in that: The reserved opening of the inspection well is located on the inner wall of the well and a fixing ring is pre-buried thereon, a sleeve is installed on the fixing ring, and an annular end cap plugged with the drainage pipe is installed at the end of the sleeve; An enclosed space is formed between the annular end cover, the sleeve, the outer wall of the drainage pipe and the reserved opening. The annular end cover is also provided with a glue injection port for injecting sealant into the enclosed space.

2. The connection structure between the prefabricated inspection well and the drainage pipe according to claim 1 is characterized in that: The socket of the annular end cover is provided with a first sealing ring for sealing with the inner wall of the drainage pipe.

3. The connection structure between the prefabricated inspection well and the drainage pipe according to claim 2 is characterized in that: The drainage pipe is provided with a second sealing ring for sealing with the reserved opening.

4. The connection structure between the prefabricated inspection well and the drainage pipe according to claim 1 is characterized in that: The sleeve is made of colorless and transparent organic glass.

5. The connection structure between the prefabricated inspection well and the drainage pipe according to claim 1 is characterized in that: The annular end cover is also made of colorless and transparent organic glass.

6. The connection structure between the prefabricated inspection well and the drainage pipe according to claim 1 is characterized in that: The sealant is polyurethane sealant.

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