Non-excavation type lining for underground pipeline repair

By designing a slot, locking block, long rod, limiting rod, and connecting rod structure in the underground pipeline repair device, the airbag and sleeve can be quickly separated, solving the problem of inconvenient airbag disassembly, reducing damage to the fiberglass felt, and improving repair efficiency.

CN223855173UActive Publication Date: 2026-01-30GUANGDONG ANTAN ENVIRONMENTAL TREATMENT CO LTD
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Patent Information

Application Number
CN202520249538.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-17
Publication Date
2026-01-30
Estimated Expiration
2035-02-17

AI Technical Summary

Technical Problem

In existing underground pipeline repair technologies, repeated use of airbags and the influence of the surrounding environment can damage the airbags, and disassembly is inconvenient, affecting repair efficiency.

Method used

A structure including a slot, a locking block, a long rod, a limiting rod, and a connecting rod is designed. The airbag and the sleeve can be quickly separated by rotating the handle, which is convenient for disassembly and replacement. At the same time, the fixing block and the second support frame reduce damage to the fiberglass felt.

Benefits of technology

This allows for easy disassembly and replacement of the airbag, reduces damage to the fiberglass mat, and improves repair efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model belongs to the technical field of pipeline repairing devices, and discloses an underground pipeline repairing non-excavation type lining which comprises a first sleeve, the right end of the first sleeve is movably connected with a second sleeve, the outer surface of the first sleeve and the outer surface of the second sleeve are both movably sleeved with an air bag, and the air bag is connected with an air inlet. Positioning blocks are fixedly mounted at the upper and lower ends of the left side of the inner surface of the second sleeve respectively. By arranging the clamping groove, the clamping block, the long rod, the limiting rod and the connecting rod, when the handle is rotated, the disc drives one end of the connecting rod to rotate, so that the other end of the connecting rod generates pulling force on the long rod; the two long rods are pulled to drive the clamping blocks to oppositely move along the outer surfaces of the limiting rods and compress the first springs, so that the clamping blocks are separated from the clamping grooves, locking of the clamping blocks on the positioning blocks and the long rods is relieved, rapid separation of the first sleeve and the second sleeve can be achieved, and therefore the air bag can be disassembled and replaced conveniently.
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Description

TECHNICAL FIELD

[0001] The utility model belongs to pipeline repair device technical field, specifically is a kind of underground pipeline repair non-excavation type inner lining. BACKGROUND

[0002] Underground pipeline is the important passage of city water, gas, oil and other fluid transmission, they hide in the ground, with the passage of time, pipeline can be due to aging, corrosion, breakage collapse and other problems and appear fault, if not timely processing, it can lead to sewage treatment efficiency, urban waterlogging, road subsidence and a series of urban disease problems.

[0003] When repairing underground pipeline, non-excavation repair method is more efficient than excavation repair method, which mainly tightens the glass fiber felt cloth smeared with resin mixed solution with air bag on the inner wall of pipeline, realizes solidification by normal temperature, heating or ultraviolet irradiation and the like, forms new inner lining pipe in repair point pipe, but in actual use process, it still has some shortcomings, due to repeated use of air bag and influence of surrounding environment, air bag is easy to be damaged, and existing air bag is mostly directly fixed on sleeve, which is not convenient to separate air bag and sleeve when disassembling, thus it needs to be improved. UTILITY MODEL CONTENTS

[0004] The utility model aims at above problem, the utility model provides a kind of underground pipeline repair non-excavation type inner lining, has the advantages of being convenient to disassemble and replace air bag.

[0005] To achieve the above object, the utility model provides the following technical scheme: a kind of underground pipeline repair non-excavation type inner lining, including first sleeve, the right end of the first sleeve movably connected with second sleeve, the outer surface of the first sleeve and second sleeve is movably sleeved with air bag, the upper and lower ends of the left side of the inner surface of the second sleeve are respectively fixedly installed with positioning block, the right end of the inner surface of the positioning block is away from the center position of the second sleeve side and is equipped with the clamping groove, the inner surface of the clamping groove is movably sleeved with clamping block, the number of the clamping block is two, the opposite surface of two clamping blocks is respectively fixedly installed with long rod, the outer surface of the long rod and the inner surface of the positioning block are movably sleeved, the number of the long rod is two, the inner part of two long rods is movably sleeved with limit rod, the outer surface of the limit rod and the inner surface of the first sleeve are fixedly sleeved, the opposite surface of two long rods is fixedly installed with first spring located at the outside of limit rod, the other end of the articulation rod of two long rods is hingedly connected with disc, the left end of the disc and the left side inner wall of the first sleeve are movably connected, the inside of the disc is fixedly sleeved with round shaft, the left end of the round shaft penetrates the first sleeve and extends to the outside of the first sleeve and is fixedly sleeved with handle, the right end of the handle and the left end of the first sleeve are movably connected.

[0006] As the utility model is preferred, the middle end of the bottom of the inner surface of the air bag is fixedly installed with a lock block, the bottom of the opposite surface of the first sleeve and the second sleeve is movably sleeved with the outer surface of the lock block respectively, the middle end of the top of the inner surface of the air bag is fixedly sleeved with a trachea, the other end of the trachea penetrates the first sleeve and the second sleeve and extends to the right side of the outer surface of the second sleeve.

[0007] As the utility model is preferred, the middle end of the bottom of the inner surface of the air bag is fixedly installed with a lock block, the middle end of the top of the inner surface of the air bag is fixedly sleeved with a trachea, the other end of the trachea penetrates the first sleeve and the second sleeve and extends to the right side of the outer surface of the second sleeve.

[0008] As the utility model is preferred, the middle end of the bottom of the inner surface of the air bag is fixedly installed with a lock block, the middle end of the top of the inner surface of the air bag is fixedly sleeved with a trachea, the other end of the trachea penetrates the first sleeve and the second sleeve and extends to the right side of the outer surface of the second sleeve.

[0009] As the utility model is preferred, the middle end of the bottom of the inner surface of the air bag is fixedly installed with a lock block, the middle end of the top of the inner surface of the air bag is fixedly sleeved with a trachea, the other end of the trachea penetrates the first sleeve and the second sleeve and extends to the right side of the outer surface of the second sleeve.

[0010] As the utility model is preferred, the middle end of the bottom of the inner surface of the air bag is fixedly installed with a lock block, the middle end of the top of the inner surface of the air bag is fixedly sleeved with a trachea, the other end of the trachea penetrates the first sleeve and the second sleeve and extends to the right side of the outer surface of the second sleeve.

[0011] As the utility model is preferred, the middle end of the bottom of the inner surface of the air bag is fixedly installed with a lock block, the middle end of the top of the inner surface of the air bag is fixedly sleeved with a trachea, the other end of the trachea penetrates the first sleeve and the second sleeve and extends to the right side of the outer surface of the second sleeve.

[0012] Compared with the prior art, the utility model has the advantages of the following:

[0013] 1、 the utility model discloses a clamping groove, a clamping block, a long rod, a limiting rod and a link rod are set up, when the handle is rotated, the disc will rotate with the one end of the link rod, so that the other end of the link rod produces a pulling force to the long rod, pulls two long rods respectively with the clamping block and moves along the outer surface of the limiting rod and compresses the first spring, so that the clamping block and the clamping groove are separated, the locking of the clamping block to the positioning block and the long rod is released, and the first sleeve and the second sleeve can be separated quickly, so that the air bag can be disassembled and replaced conveniently.

[0014] 2. The utility model discloses a fixed block, second support frame, second spring and apron are set, when the glass fiber felt cloth solidifies in the pipeline inner wall, with the mutual contact of second round and glass fiber felt cloth, will make glass fiber felt cloth extrude second round, with second support frame along the fixed block's inner surface with first sleeve's center position moves and compresses second spring, and under the recovery of second spring, will force second round to restore to the original position, and with the apron, can protect second spring, by this, can realize the soft contact of second round and glass fiber felt cloth through movable design, thereby reducing the damage of second round to glass fiber felt cloth. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is the structure schematic diagram of the utility model;

[0016] Figure 2 It is the sectional structure schematic diagram of the front of the utility model;

[0017] Figure 3 It is the sectional structure schematic diagram of the front of the utility model;

[0018] Figure 4 It is the sectional structure schematic diagram of the fixed block of the utility model;

[0019] Figure 5 It is Figure 2 It is the partial enlarged structure schematic diagram of A place in;

[0020] Figure 6 It is Figure 3 It is the partial enlarged structure schematic diagram of B place.

[0021] In the drawing: 1, first sleeve; 2, second sleeve; 3, air bag; 4, positioning block; 5, clamping groove; 6, clamping block; 7, long rod; 8, limit rod; 9, first spring; 10, link rod; 11, disc; 12, round shaft; 13, handle; 14, lock block; 15, air pipe; 16, isolation membrane; 17, glass fiber felt cloth; 18, first support frame; 19, first round; 20, fixed block; 21, second support frame; 22, second round; 23, limit slot; 24, limit block; 25, second spring; 26, apron. DETAILED DESCRIPTION

[0022] The technical scheme in the embodiments of the utility model will be described clearly and completely in combination with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor belong to the protection scope of the utility model.

[0023] As Figures 1 to 6 The utility model provides a kind of underground pipeline repair non-excavation type inner lining, including first sleeve pipe 1, the right end of first sleeve pipe 1 is movably connected with second sleeve pipe 2, the outer surface of first sleeve pipe 1 and second sleeve pipe 2 is movably sleeved with air bag 3, the upper and lower ends of left side in second sleeve pipe 2 inner surface are respectively fixedly installed with locating block 4, the right end of the inner surface of locating block 4 away from the center position of second sleeve pipe 2 side is equipped with clamping groove 5, the inner surface of clamping groove 5 is movably sleeved with clamping block 6, the number of clamping block 6 is two, the opposite surface of two clamping blocks 6 is respectively fixedly installed with long rod 7, the outer surface of long rod 7 and the inner surface of locating block 4 are movably sleeved, the number of long rod 7 is two, the inside of two long rods 7 is respectively movably sleeved with limiting rod 8, the outer surface of limiting rod 8 and the inner surface of first sleeve pipe 1 are fixedly sleeved, the opposite surface of two long rods 7 is respectively fixedly installed with first spring 9 located in the outside of limiting rod 8, the left end of two long rods 7 is respectively hinged with link rod 10, the other end of link rod 10 is hinged with disc 11, the left end of disc 11 and the left side inner wall of first sleeve pipe 1 are movably connected, disc 11 is fixedly sleeved with round shaft 12 in the inside, the left end of round shaft 12 penetrates first sleeve pipe 1 and extends to the outside of first sleeve pipe 1 and is fixedly sleeved with handle 13, the right end of handle 13 and the left end of first sleeve pipe 1 are movably connected.

[0024] When rotating handle 13, handle 13 will be rotated with disc 11 by round shaft 12, so that link rod 10 hinged with disc 11 is rotated, and then link rod 10 generates a pulling force on long rod 7, two long rods 7 are pulled to move along the outer surface of limiting rod 8 respectively, and first spring 9 is compressed, when clamping block 6 and clamping groove 5 are separated, the locking of clamping block 6 on long rod 7 and locating block 4 is released, so that first sleeve pipe 1 and second sleeve pipe 2 are quickly separated, and then air bag 3 is conveniently disassembled and replaced.

[0025] Among them, the middle end of the bottom of the inner surface of air bag 3 is fixedly installed with lock block 14, the outer surface of lock block 14 is movably sleeved with the bottom of the opposite surface of first sleeve pipe 1 and second sleeve pipe 2 respectively, the middle end of the top of the inner surface of air bag 3 is fixedly sleeved with air pipe 15, the other end of air pipe 15 penetrates first sleeve pipe 1 and second sleeve pipe 2 and extends to the right side of the outer surface of second sleeve pipe 2.

[0026] Due to the existence of lock block 14, air bag 3 is clamped and fixed with first sleeve pipe 1 and second sleeve pipe 2, and the existence of air pipe 15 facilitates the filling of gas into air bag 3.

[0027] Among them, the middle of the outer surface of air bag 3 is fixedly sleeved with isolation membrane 16, the middle of the outer surface of isolation membrane 16 is movably sleeved with glass fiber felt cloth 17.

[0028] Due to the existence of the isolation film 16, the air bag 3 and the glass fiber felt 17 will be isolated, and the glass fiber felt 17 is bound and fixed by the elastic rope and the isolation film 16.

[0029] The right end of the second sleeve 2 is fixedly provided with a first support frame 18, and the number of the first support frame 18 is three.

[0030] Due to the existence of the first support frame 18 and the first circular wheel 19, it will be convenient to move inside the pipeline.

[0031] The front end of the first sleeve 1 is fixedly provided with a fixed block 20, and the number of the fixed block 20 is three.

[0032] The existence of the fixed block 20 will support and fix the second support frame 21.

[0033] The left and right side inner walls of the three fixed blocks 20 are respectively provided with a limiting groove 23, and the top end of the limiting groove 23 is movably sleeved with a limiting block 24.

[0034] The cooperation of the limiting groove 23 and the limiting block 24 will limit the movement of the second support frame 21, and prevent the second support frame 21 from being separated from the fixed block 20.

[0035] The outer surface of the second support frame 21 is fixedly provided with a second spring 25 towards the center position of the first sleeve 1, and the other end of the second spring 25 is fixedly connected with the inner surface of the fixed block 20.

[0036] When the second circular wheel 22 is extruded, the second support frame 21 will move along the inner surface of the fixed block 20 and compress the second spring 25, and the existence of the guard plate 26 can protect the second spring 25.

[0037] The working principle and use process of the utility model:

[0038] In use, the operator first fixes the glass fiber felt cloth 17 coated with resin mixed solution on the middle part of the outer surface of the isolation film 16 through the elastic rope, then connects the air pipe 15 and the air pump through the joint, and then the operator can push the glass fiber felt cloth 17 to the position of the pipeline to be repaired, and then starts the air pump, at this time the air bag 3 will be inflated, so that the glass fiber felt cloth 17 is tightly attached to the inner wall of the pipeline, after the glass fiber felt cloth 17 is cured, the operator can stop the air pump to restore the air bag 3 to the initial state, then pull out the second sleeve 2 and the first sleeve 1, when the second circular wheel 22 and the cured glass fiber felt cloth 17 are in contact, the second circular wheel 22 will move along the inner surface of the fixed block 20 with the second support frame 21 and compress the second spring 25, so as to realize the soft contact of the second circular wheel 22 and the glass fiber felt cloth 17 through the movable design, thereby reducing the damage of the second circular wheel 22 to the glass fiber felt cloth 17.

[0039] When the air bag 3 needs to be replaced, the operator rotates the handle 13, so that the circular shaft 12 rotates through the disc 11 with one end of the connecting rod 10, so that the other end of the connecting rod 10 generates a pulling force on the long rod 7, and the two long rods 7 are pulled to move towards each other along the outer surface of the limiting rod 8 with the clamping block 6 and compress the first spring 9, until the clamping block 6 and the clamping groove 5 are separated, then the operator can separate the first sleeve 1 and the second sleeve 2, so as to facilitate the disassembly and replacement of the air bag 3.

[0040] It should be noted that in this text, relational terms such as first and second are used only to distinguish one entity or operation from another, and do not necessarily require or imply that these entities or operations have any such actual relationship or order. Moreover, the terms "include", "contain" or any other variants thereof are intended to cover non-exclusive inclusion, so that the process, method, article or equipment including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such process, method, article or equipment.

[0041] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A trenchless in-place pipe rehabilitation inner lining comprising a first sleeve (1), characterized in that: The right end of the first sleeve (1) is movably connected with a second sleeve (2), the outer surfaces of the first sleeve (1) and the second sleeve (2) are movably sleeved with air bags (3), the upper and lower ends of the left inner surface of the second sleeve (2) are respectively fixedly installed with positioning blocks (4), the right end of the inner surface of the positioning block (4) away from the center position of the second sleeve (2) is provided with a clamping groove (5), the inner surface of the clamping groove (5) is movably sleeved with a clamping block (6), the number of the clamping block (6) is two, the opposite surfaces of the two clamping blocks (6) are respectively fixedly installed with long rods (7), the outer surface of the long rod (7) and the inner surface of the positioning block (4) are movably sleeved, the number of the long rod (7) is two, the inner part of the two long rods (7) is movably sleeved with a limiting rod (8), the outer surface of the limiting rod (8) and the inner surface of the first sleeve (1) are fixedly sleeved, the opposite surfaces of the two long rods (7) are respectively fixedly installed with first springs (9) located outside the limiting rod (8), the left end of the two long rods (7) is respectively hinged with a connecting rod (10), the other end of the connecting rod (10) is hinged with a disc (11), the left end of the disc (11) and the left inner wall of the first sleeve (1) are movably connected, the inside of the disc (11) is fixedly sleeved with a circular shaft (12), the left end of the circular shaft (12) penetrates through the first sleeve (1) and extends to the outside of the first sleeve (1) and is fixedly sleeved with a handle (13), the right end of the handle (13) and the left end of the first sleeve (1) are movably connected.

2. A trenchless in-place pipe rehabilitation lining according to claim 1, characterized in that: The middle end of the bottom of the inner surface of the air bag (3) is fixedly installed with a lock block (14), the outer surface of the lock block (14) is movably sleeved with the opposite bottom of the first sleeve (1) and the second sleeve (2), the middle end of the top of the inner surface of the air bag (3) is fixedly sleeved with an air pipe (15), the other end of the air pipe (15) penetrates through the first sleeve (1) and the second sleeve (2) and extends to the right side of the outer surface of the second sleeve (2).

3. A trenchless in-place pipe rehabilitation inner lining according to claim 1, characterized in that: The middle part of the outer surface of the air bag (3) is fixedly sleeved with a separation film (16), the middle part of the outer surface of the separation film (16) is movably sleeved with a glass fiber felt cloth (17).

4. A trenchless in-place pipe rehabilitation lining according to claim 1, wherein: The right end of the second sleeve (2) is fixedly installed with a first support frame (18), the number of the first support frame (18) is three, the inner part of the three first support frames (18) is movably sleeved with a first circular wheel (19).

5. A trenchless in-place pipe rehabilitation inner lining according to claim 1, wherein: The front end of the first sleeve (1) is fixedly installed with a fixed block (20), the number of the fixed block (20) is three, the inner part of the three fixed blocks (20) is movably sleeved with a second support frame (21), the inside of the second support frame (21) is movably sleeved with a second circular wheel (22).

6. A trenchless in-place pipe rehabilitation inner lining according to claim 5, characterized in that: The left and right inner walls of the three fixed blocks (20) are respectively provided with limiting grooves (23), the top of the inside of the limiting groove (23) is movably sleeved with a limiting block (24), the outer surface of the limiting block (24) and the outer surface of the second support frame (21) are fixedly connected.

7. A trenchless in-place pipe rehabilitation inner lining according to claim 5, characterized in that: The outer surface of the second support frame (21) is fixedly installed with a second spring (25) on the side towards the central position of the first sleeve (1), the other end of the second spring (25) is fixedly connected with the inner surface of the fixed block (20), the bottom of the left end of the second support frame (21) is fixedly installed with a guard plate (26), and the outer surface of the guard plate (26) is movably connected with the outer surface of the fixed block (20).