Connecting device for rain sewage pipeline and prefabricated inspection well

Abstract

The utility model relates to the technical field of installation of rain and sewage pipelines, in particular to a connecting device of a rain and sewage pipeline and a prefabricated inspection well, which comprises an inspection well and a connecting pipe, at least two connecting holes are arranged on the peripheral wall of the inspection well, one end of the connecting pipe extends into the inspection well through any one connecting hole, and the other end of the connecting pipe extends into the prefabricated inspection well. One end of the inspection well is detachably connected with the connecting pipe through a locking piece positioned in the inspection well, and the other end of the inspection well is detachably connected with the rain sewage pipeline through a connecting mechanism; the locking piece is composed of a first section and a second section, a first connector is formed in the end, extending into the inspection well, of the connecting pipe, and the first connector is detachably connected with the second section. The connecting pipe and the rain sewage pipeline can be rapidly connected and detached, the sealing performance between the connecting pipe and the rain sewage pipeline is good, meanwhile, the connecting pipe and the inspection well can be rapidly fixed and detached, and operation is easy and convenient.

Description

Technical Field

[0001] This utility model relates to the field of stormwater and sewage pipe installation technology, specifically to a connection device between stormwater and sewage pipes and prefabricated inspection wells. Background Technology

[0002] Rainwater and sewage pipes are pipes used for discharging rainwater and domestic sewage. In order to realize the discharge, inspection and maintenance of the pipes, rainwater and sewage pipes need to be connected to inspection wells. The inspection wells allow personnel to inspect and clean the inside of the pipes, and can also be used for pipe connection and diversion.

[0003] Existing technology announcement CN219732219U discloses a connection device for rainwater and sewage pipes and prefabricated inspection wells, which includes a well body. Two connection holes are opened at the bottom of the well body's exterior. A sealing mechanism is installed around the well body, and a connecting mechanism is installed outside the sealing mechanism. The sealing mechanism includes two connecting sleeves, which are respectively installed outside the two connection holes. A snap-fit ​​ring is installed inside the connecting sleeve. A mating ring is installed inside the well body, inside each of the two connection holes. A rotating groove is opened through the interior of the mating ring. A rotating sleeve is movably installed inside the mating ring. A rotating ring is installed around the center of the rotating sleeve, inside the rotating groove. A threaded ring is installed outside the rotating sleeve, inside the snap-fit ​​ring.

[0004] However, the aforementioned patent makes it inconvenient to disassemble the sealing mechanism and install and fix the pipe body and connecting sleeve when repairing or replacing the sealing mechanism and pipe body. In addition, the sealing performance at the connection between the pipe body and the connecting sleeve is generally poor.

[0005] In view of this, the inventors provide a connection device for rainwater and sewage pipes and prefabricated inspection wells to solve the above-mentioned technical problems. Utility Model Content

[0006] The purpose of this utility model is to overcome the shortcomings of the prior art and provide a connection device for rainwater and sewage pipes and prefabricated inspection wells. By setting a locking component, the locking component and the connecting pipe can be easily disassembled and installed by utilizing the cooperation between the slider in the locking component and the sliding groove and the first annular groove of the connecting pipe. At the same time, a connection mechanism is set to connect the connecting pipe and the rainwater and sewage pipe. This connection mechanism is easy to disassemble and install and has good sealing performance.

[0007] The objective of this utility model is achieved through the following technical solution:

[0008] This utility model provides a connection device between a rainwater and sewage pipe and a prefabricated inspection well, including an inspection well with at least two connection holes on its peripheral wall, and a connecting pipe. One end of the connecting pipe extends into the inspection well through any of the connection holes and is detachably connected to the connecting pipe by a locking member located in the inspection well. The other end is detachably connected to the rainwater and sewage pipe through a connecting mechanism.

[0009] The locking component consists of a first section and a second section. The end of the connecting pipe that extends into the inspection well has a first interface, which is detachably connected to the second section.

[0010] Furthermore, the second segment is a hollow cylinder, and a plurality of sliders are fixedly arranged on the inner surface of the hollow cylinder. A sliding groove corresponding to each slider is formed along the axial direction on the circumference of the first interface. At the same time, a first annular groove communicating with the sliding groove is formed on the circumference of the first interface. The first annular groove is arranged close to the connecting mechanism relative to the sliding groove. After the slider passes through the sliding groove and enters the first annular groove, the slider is confined in the first annular groove by rotating the connecting tube.

[0011] Furthermore, the minimum inscribed circle diameter of the first segment is greater than the inner diameter of the connecting hole, the outer diameter of the second segment is between the inner diameter of the connecting hole and the outer diameter of the first interface; the width of the slider is less than the width of the first annular groove.

[0012] Furthermore, the connecting mechanism includes a fixing component, a limiting component, and a sealing component;

[0013] The limiting component is installed between the fixing component and the sealing component; a second interface is provided on the connecting pipe at the end away from the first interface, and a third interface with the same structure as the second interface is provided at the end of the rainwater and sewage pipe near the connecting mechanism. Both the second interface and the third interface are located inside the fixing component and are in contact with the two end faces of the sealing component respectively.

[0014] Furthermore, the fixing component includes an upper arc-shaped connecting sleeve with its opening facing downward and a lower arc-shaped connecting sleeve with its opening facing upward. One end of the upper arc-shaped connecting sleeve is hinged to one end of the lower arc-shaped connecting sleeve. The first fixing plate provided at the other end of the upper arc-shaped connecting sleeve and the second fixing plate provided at the other end of the lower arc-shaped connecting sleeve are adapted to each other. Both the first fixing plate and the second fixing plate are provided with multiple screw holes of the same size and position.

[0015] Furthermore, a first limiting groove is formed on the inner surface of the upper arc-shaped connecting sleeve at the middle position, and a second limiting groove and a third limiting groove are formed on the inner surface of the upper arc-shaped connecting sleeve on both sides of the first limiting groove, respectively; correspondingly, a fourth limiting groove is formed on the inner surface of the lower arc-shaped connecting sleeve at the middle position, and a fifth limiting groove and a sixth limiting groove are formed on the inner surface of the lower arc-shaped connecting sleeve on both sides of the fourth limiting groove, respectively;

[0016] After the upper arc-shaped connecting sleeve and the lower arc-shaped connecting sleeve are connected, the second interface is located in the second limiting groove and the fifth limiting groove, and the third interface is located in the third limiting groove and the sixth limiting groove.

[0017] Furthermore, the limiting component includes an upper arc-shaped limiting block with its opening facing downward and a lower arc-shaped limiting block with its opening facing upward. The upper arc-shaped limiting block is installed in a first limiting groove that is adapted to it, and the lower arc-shaped limiting block is installed in a fourth limiting groove that is adapted to it.

[0018] Furthermore, the sealing assembly includes an upper arc-shaped sealing plate with its opening facing downward and a lower arc-shaped sealing plate with its opening facing upward. The upper arc-shaped limiting block is sleeved on the outer periphery of the upper arc-shaped sealing plate and can move axially along the first limiting groove to facilitate the replacement of the upper arc-shaped sealing plate. The lower arc-shaped limiting block is sleeved on the lower arc-shaped sealing plate and can move axially along the fourth limiting groove to facilitate the replacement of the lower arc-shaped sealing plate. The lower surface of the upper arc-shaped limiting block and the upper surface of the lower arc-shaped limiting block contact each other, thereby fixing the upper arc-shaped sealing plate and the lower arc-shaped sealing plate within the fixing assembly.

[0019] Furthermore, a handle is fixedly connected to the upper arc-shaped connecting sleeve above the first fixed plate.

[0020] Furthermore, the first section has a flange structure.

[0021] Compared with the prior art, the technical solution provided by this utility model has the following beneficial effects:

[0022] 1. This utility model discloses a connection device for rainwater and sewage pipes and prefabricated inspection wells. By setting a locking component, the locking component and the connecting pipe are detachably connected by the cooperation between the slider inside the locking component and the sliding groove and the first annular groove of the connecting pipe. At the same time, a connection mechanism is set to connect the connecting pipe and the rainwater and sewage pipes. The connection mechanism is easy to disassemble and install, and has good sealing performance. It is convenient to disassemble the rainwater and sewage pipes and to connect and fix the connecting pipes to the rainwater and sewage pipes. It is simple to use, easy to operate, and suitable for widespread promotion.

[0023] 2. This utility model discloses a connection device for rainwater and sewage pipes and prefabricated inspection wells. A first limiting groove and a fourth limiting groove are respectively provided on the upper and lower arc-shaped connecting sleeves of the fixed component. An upper arc-shaped limiting block and a lower arc-shaped limiting block are placed within the first and fourth limiting grooves. This structure facilitates the installation of the upper and lower arc-shaped sealing plates inside the fixed component, achieving a sealing connection between the connecting pipe and the rainwater and sewage pipes. Furthermore, the upper and lower arc-shaped limiting blocks can slide within their respective limiting grooves, allowing for convenient replacement when the sealing component is damaged, thus improving work efficiency. Attached Figure Description

[0024] The accompanying drawings are incorporated in and form part of this specification, and together with the description, serve to explain the principles of this invention.

[0025] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0026] Figure 1 This is a schematic diagram of the structure of the connection device between the rainwater and sewage pipe and the prefabricated inspection well of this utility model;

[0027] Figure 2 This is a schematic diagram of the connection structure between the connecting pipe and the inspection well of this utility model;

[0028] Figure 3 This is a schematic diagram of the connection pipe of this utility model being connected to the rainwater and sewage pipe through a connection mechanism.

[0029] The components include: 1. Inspection well; 2. Connecting pipe; 3. Locking element; 4. Connecting mechanism; 5. Rainwater and sewage pipe; 21. First interface; 22. Second interface; 31. First step shaft; 32. Second step shaft; 41. Fixing component; 42. Limiting component; 43. Sealing component; 51. Third interface; 211. Slide groove; 212. First annular groove; 221. Second annular groove; 321. Slider; 411. Upper arc-shaped connecting sleeve; 412. Lower arc-shaped connecting sleeve; 413. Handle; 421. Upper arc-shaped limiting block; 422. Lower arc-shaped limiting block; 431. Upper arc-shaped sealing plate; 432. Lower arc-shaped sealing plate; 511. Third annular groove; 4111. First limiting groove; 4112. Second limiting groove; 4113. Third limiting groove. Detailed Implementation

[0030] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numerals in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this invention. Rather, they are merely examples of apparatuses consistent with some aspects of this invention as detailed in the appended claims.

[0031] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments.

[0032] See Figure 1 , Figure 2 This utility model provides a connection device for a rainwater and sewage pipe and a prefabricated inspection well, including an inspection well 1, two symmetrical connection holes are opened on the peripheral wall of the inspection well 1, and a connecting pipe 2. One end of the connecting pipe 2 extends into the inspection well 1 through either connection hole and is detachably connected to the connecting pipe 2 through a locking member 3 located in the inspection well 1, and the other end is detachably connected to the rainwater and sewage pipe 5 through a connecting mechanism 4.

[0033] The locking component 3 is composed of a first section 31 and a second section 32. The end of the connecting pipe 2 that extends into the inspection well 1 is provided with a first interface 21. The first interface 21 is detachably connected to the second section 32.

[0034] Furthermore, the second segment 32 is a hollow cylinder, and two symmetrical sliders 321 are fixedly arranged on the inner surface of the hollow cylinder. Two grooves 211 corresponding to the sliders 321 are opened along the axial direction on the circumference of the first interface 21. At the same time, a first annular groove 212 communicating with the grooves 211 is opened on the circumference of the first interface 21. The first annular groove 212 is arranged close to the connecting mechanism 4 relative to the grooves 211. After the slider 321 passes through the groove 211 and enters the first annular groove 212, the slider 321 is confined in the first annular groove 212 by rotating the connecting tube 2.

[0035] When it is necessary to disassemble the connecting pipe 2, rotate the connecting pipe 2 so that the two sliders 321 are aligned with the position of the slide groove 211, and the connecting pipe 2 can be separated from the locking part 3.

[0036] Furthermore, the minimum inscribed circle diameter of the first segment 31 is greater than the inner diameter of the connecting hole, and the outer diameter of the second segment 32 is between the inner diameter of the connecting hole and the outer diameter of the first interface 21; the width of the slider 321 is less than the groove width of the first annular groove 212.

[0037] Furthermore, the first section 31 has a flange structure, which facilitates the connection between two oppositely positioned locking elements 3 as needed.

[0038] like Figure 3 As shown, in this embodiment, the connecting mechanism 4 includes a fixing component 41, a limiting component 42, and a sealing component 43;

[0039] The limiting component 42 is installed between the fixing component 41 and the sealing component 43; a second interface 22 is provided on the connecting pipe 2 at the end away from the first interface 21, and a third interface 51 with the same structure as the second interface 22 is provided on the end of the rainwater and sewage pipe 5 near the connecting mechanism 4. The second interface 22 and the third interface 51 are both located inside the fixing component 41 and are in contact with the two end faces of the sealing component 43 respectively.

[0040] Furthermore, the fixing assembly 41 includes an upper arc-shaped connecting sleeve 411 with its opening facing downward and a lower arc-shaped connecting sleeve 412 with its opening facing upward. One end of the upper arc-shaped connecting sleeve 411 is hinged to one end of the lower arc-shaped connecting sleeve 412. The first fixing plate provided at the other end of the upper arc-shaped connecting sleeve 411 and the second fixing plate provided at the other end of the lower arc-shaped connecting sleeve 412 are adapted to each other. Both the first fixing plate and the second fixing plate are provided with multiple screw holes of the same size and position. By passing the bolt through the screw holes on the first fixing plate and the second fixing plate, the bolt is rotated to connect and fix the upper arc-shaped connecting sleeve 411 and the lower arc-shaped connecting sleeve 412.

[0041] Preferably, the first fixing plate and the upper arc-shaped connecting sleeve 411 are integrally formed; the second fixing plate and the lower arc-shaped connecting sleeve 412 are integrally formed.

[0042] Furthermore, a first limiting groove 4111 is formed on the inner surface of the upper arc-shaped connecting sleeve 411 at the middle position, and a second limiting groove 4112 and a third limiting groove 4113 are formed on the inner surface of the upper arc-shaped connecting sleeve 411 on both sides of the first limiting groove 4111, respectively; correspondingly, a fourth limiting groove is formed on the inner surface of the lower arc-shaped connecting sleeve 412 at the middle position, and a fifth limiting groove and a sixth limiting groove are formed on the inner surface of the lower arc-shaped connecting sleeve 412 on both sides of the fourth limiting groove, respectively.

[0043] After the upper arc-shaped connecting sleeve 411 and the lower arc-shaped connecting sleeve 412 are connected, the second interface 22 is located in the second limiting groove 4112 and the fifth limiting groove, and the third interface 51 is located in the third limiting groove 4113 and the sixth limiting groove.

[0044] In this embodiment, the second interface 22 is provided with a second annular groove 221, and the third interface 51 is provided with a third annular groove 511. The second annular groove 221 and the third annular groove 511 are used to cooperate with the connection of the upper arc-shaped connecting sleeve 411 and the lower arc-shaped connecting sleeve 412.

[0045] Furthermore, the limiting component 42 includes an upper arc-shaped limiting block 421 with its opening facing downward and a lower arc-shaped limiting block 422 with its opening facing upward. The upper arc-shaped limiting block 421 is installed in a first limiting groove 4111 that is adapted to it, and the lower arc-shaped limiting block 422 is installed in a fourth limiting groove that is adapted to it.

[0046] Furthermore, the sealing assembly 43 includes an upper arc-shaped sealing plate 431 with its opening facing downward and a lower arc-shaped sealing plate 432 with its opening facing upward. The upper arc-shaped limiting block 421 is sleeved on the outer periphery of the upper arc-shaped sealing plate 431. The upper arc-shaped limiting block 421 can move axially along the first limiting groove 4111 to facilitate the replacement of the upper arc-shaped sealing plate 431. The lower arc-shaped limiting block 422 is sleeved on the lower arc-shaped sealing plate 432. The lower arc-shaped limiting block 422 can move axially along the fourth limiting groove to facilitate the replacement of the lower arc-shaped sealing plate 432. The lower surface of the upper arc-shaped limiting block 421 and the upper surface of the lower arc-shaped limiting block 422 contact each other, thereby fixing the upper arc-shaped sealing plate 431 and the lower arc-shaped sealing plate 432 within the fixing assembly 41.

[0047] It should be noted that the lower surface of the upper arc-shaped sealing plate 431 and the upper surface of the lower arc-shaped sealing plate 432 form a sealing structure after contact, which facilitates the sealing of the connecting pipe 2 and the rainwater and sewage pipe 5. The upper arc-shaped limiting block 421 is set to move within the first limiting groove 4111 to facilitate easy replacement when the upper arc-shaped sealing plate 431 is damaged; the lower arc-shaped limiting block 422 is set to move within the fourth limiting groove to facilitate easy replacement when the lower arc-shaped sealing plate 432 is damaged.

[0048] The upper arc-shaped connecting sleeve 411 and the lower arc-shaped connecting sleeve 412 have the same structure and size, and form a closed structure after they come into contact; the upper arc-shaped limiting block 421 and the lower arc-shaped limiting block 422 have the same structure and size, and also form a closed structure after they come into contact.

[0049] In this embodiment, a handle 413 is fixedly connected to the upper arc-shaped connecting sleeve 411 above the first fixed plate. The operator can remove the bolts connecting the upper arc-shaped connecting sleeve 411 and the lower arc-shaped connecting sleeve 412, and then pull the handle 413 to separate the upper arc-shaped connecting sleeve 411 and the lower arc-shaped connecting sleeve 412, thus facilitating the maintenance and replacement of the rainwater and sewage pipe 5.

[0050] The specific process of this device in practical application is as follows:

[0051] To fix the inspection well 1, insert one end of the connecting pipe 2 into the inspection well 1 and disconnect and connect it using the locking member 3. Specifically, the slider 321 slides through the slide groove 211 and enters the first annular groove 212. Rotate the connecting pipe 2 so that the slider 321 and the slide groove 211 are misaligned, thus connecting the connecting pipe 2 and the locking member 3 together. This further connects and fixes the connecting pipe 2 to the inspection well 1. By rotating the connecting pipe 2, the slider 321 and the slide groove 211 are aligned, and the connecting pipe 2 can be removed. Further open the fixing component 41, place the second interface 22 of the connecting pipe 2 in the second limiting groove 4112 and the fifth limiting groove, and place the third interface 51 of the rainwater and sewage pipe 5 in the third limiting groove 4113 and the sixth limiting groove. Close the fixing component 41 to connect the connecting pipe 2 and the rainwater and sewage pipe 5 together.

[0052] The above description is merely a specific embodiment of this utility model, enabling those skilled in the art to understand or implement it. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this utility model.

[0053] It should be understood that this utility model is not limited to the content already described above, and various modifications and changes can be made without departing from its scope. The scope of this utility model is limited only by the appended claims.

Claims

1. A connection device for a stormwater and sewage pipe and a prefabricated inspection well, comprising an inspection well (1), wherein at least two connection holes are provided on the peripheral wall of the inspection well (1), characterized in that, It also includes a connecting pipe (2), one end of which extends into the inspection well (1) through any connecting hole and is detachably connected to the connecting pipe (2) through a locking piece (3) located in the inspection well (1), and the other end is detachably connected to the rainwater and sewage pipe (5) through a connecting mechanism (4); The locking component (3) is composed of a first section (31) and a second section (32). The end of the connecting pipe (2) that extends into the inspection well (1) is provided with a first interface (21). The first interface (21) and the second section (32) are detachably connected. The second segment (32) is a hollow cylinder. Multiple sliders (321) are fixedly arranged on the inner surface of the hollow cylinder. The first interface (21) has a groove (211) that corresponds to the slider (321) along the axial direction on the circumference of the first interface (21). At the same time, a first annular groove (212) that communicates with the groove (211) is opened on the circumference of the first interface (21). The first annular groove (212) is set close to the connecting mechanism (4) relative to the groove (211). After the slider (321) passes through the groove (211) and enters the first annular groove (212), the slider (321) is confined in the first annular groove (212) by rotating the connecting tube (2).

2. The connection device between the rainwater and sewage pipe and the prefabricated inspection well according to claim 1, characterized in that, The minimum inscribed circle diameter of the first segment (31) is greater than the inner diameter of the connecting hole, and the outer diameter of the second segment (32) is between the inner diameter of the connecting hole and the outer diameter of the first interface (21); the width of the slider (321) is less than the groove width of the first annular groove (212).

3. The connection device between the rainwater and sewage pipe and the prefabricated inspection well according to claim 1, characterized in that, The connecting mechanism (4) includes a fixing component (41), a limiting component (42), and a sealing component (43). The limiting component (42) is installed between the fixing component (41) and the sealing component (43); a second interface (22) is provided on the connecting pipe (2) at the end away from the first interface (21), and a third interface (51) with the same structure as the second interface (22) is provided on the end of the rainwater and sewage pipe (5) near the connecting mechanism (4). The second interface (22) and the third interface (51) are both located in the fixing component (41) and are in contact with the two end faces of the sealing component (43) respectively.

4. The connection device between the rainwater and sewage pipe and the prefabricated inspection well according to claim 3, characterized in that, The fixing component (41) includes an upper arc-shaped connecting sleeve (411) with the opening facing downward and a lower arc-shaped connecting sleeve (412) with the opening facing upward. One end of the upper arc-shaped connecting sleeve (411) is hinged to one end of the lower arc-shaped connecting sleeve (412). The first fixing plate provided at the other end of the upper arc-shaped connecting sleeve (411) and the second fixing plate provided at the other end of the lower arc-shaped connecting sleeve (412) are adapted to each other. Both the first fixing plate and the second fixing plate are provided with multiple screw holes of the same size and position.

5. The connection device between the rainwater and sewage pipe and the prefabricated inspection well according to claim 4, characterized in that, On the inner surface of the upper arc-shaped connecting sleeve (411), a first limiting groove (4111) is provided at the middle position. On the inner surface of the upper arc-shaped connecting sleeve (411), a second limiting groove (4112) and a third limiting groove (4113) are respectively provided on both sides of the first limiting groove (4111). Correspondingly, on the inner surface of the lower arc-shaped connecting sleeve (412), a fourth limiting groove is provided at the middle position. On the inner surface of the lower arc-shaped connecting sleeve (412), a fifth limiting groove and a sixth limiting groove are respectively provided on both sides of the fourth limiting groove. After the upper arc-shaped connecting sleeve (411) and the lower arc-shaped connecting sleeve (412) are connected, the second interface (22) is located in the second limiting groove (4112) and the fifth limiting groove, and the third interface (51) is located in the third limiting groove (4113) and the sixth limiting groove.

6. The connection device between the rainwater and sewage pipe and the prefabricated inspection well according to claim 5, characterized in that, The limiting component (42) includes an upper arc-shaped limiting block (421) with its opening facing downward and a lower arc-shaped limiting block (422) with its opening facing upward. The upper arc-shaped limiting block (421) is installed in a first limiting groove (4111) that is adapted to it, and the lower arc-shaped limiting block (422) is installed in a fourth limiting groove that is adapted to it.

7. The connection device between the rainwater and sewage pipe and the prefabricated inspection well according to claim 6, characterized in that, The sealing assembly (43) includes an upper arc-shaped sealing plate (431) with its opening facing downward and a lower arc-shaped sealing plate (432) with its opening facing upward. The upper arc-shaped limiting block (421) is sleeved on the outer periphery of the upper arc-shaped sealing plate (431). The upper arc-shaped limiting block (421) can move axially along the first limiting groove (4111) to facilitate the replacement of the upper arc-shaped sealing plate (431). The lower arc-shaped limiting block (422) is sleeved on the lower arc-shaped sealing plate (432). The lower arc-shaped limiting block (422) can move axially along the fourth limiting groove to facilitate the replacement of the lower arc-shaped sealing plate (432). The lower surface of the upper arc-shaped limiting block (421) and the upper surface of the lower arc-shaped limiting block (422) contact each other, thereby fixing the upper arc-shaped sealing plate (431) and the lower arc-shaped sealing plate (432) in the fixing assembly (41).

8. The connection device between the rainwater and sewage pipe and the prefabricated inspection well according to claim 4, characterized in that, A handle (413) is fixedly connected to the upper arc-shaped connecting sleeve (411) above the first fixed plate.

9. The connection device between the rainwater and sewage pipe and the prefabricated inspection well according to claim 1, characterized in that, The first segment (31) has a flange structure.

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