Lining method non-excavation repairing device

Abstract

The utility model relates to the technical field of pipeline repair, in particular to a lining method non-excavation repair device. The telescopic main rod is movably arranged in the pipeline and arranged in the length direction of the pipeline, and the alignment supporting assembly is detachably arranged at the front end of the telescopic main rod in a sleeving mode and used for enabling the telescopic main rod to be located on the central axis of the pipeline after being adjusted. The pipe supporting assembly is arranged on the rear portion of the telescopic main column and used for supporting the lining pipe to enable the lining pipe and the telescopic main column to be coaxially arranged; and the connecting assembly is detachably arranged on the telescopic main column, located behind the alignment supporting assembly and used for enabling the front end of the lining pipe to synchronously move along with the front end of the telescopic main column. The device solves the problem that after an existing lining pipe is pulled into a pipeline, the lining pipe is prone to deformation.

Description

Technical Field

[0001] This utility model relates to the field of pipeline repair technology, and in particular to a trenchless repair device using a lining method. Background Technology

[0002] The lining repair technique involves inserting a plastic liner with anchoring keys into the existing pipeline through a manhole. Grout is then injected into the annular gap between the liner and the original pipeline, effectively regenerating the pipeline. After the grout solidifies, the liner bonds with the inner wall of the existing pipeline, forming a new pipeline structure that provides corrosion protection and reinforcement.

[0003] However, the following problems exist during the actual repair process:

[0004] 1. Because the inner lining pipe is driven into the repair pipe by the traction machine, and there is no supporting device inside the pipe to support the inner lining pipe to move coaxially with the pipe, the lower part of the inner lining pipe naturally droops and abuts against the inner wall of the pipe. This causes the inner lining pipe wall to be squeezed and deformed and bent. After grouting, the deformed inner lining pipe will be fixed, resulting in an uneven inner wall after the repair is completed, which affects its water permeability. Utility Model Content

[0005] In order to solve the above problems, the purpose of this utility model is to provide a non-excavation repair device using a lining method, which solves the problem that the existing inner lining pipe is prone to deformation after being pulled into the pipeline.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A trenchless repair device using a lining method includes a telescopic main rod movably placed inside a pipe and arranged along the length of the pipe; a detachable alignment support assembly sleeved on the front end of the telescopic main rod and used to adjust the telescopic main rod so that it is on the central axis of the pipe; a support pipe assembly located at the rear of the telescopic main rod and used to support the inner lining pipe so that the inner lining pipe is coaxial with the telescopic main rod; and a connecting assembly detachably located on the telescopic main rod and behind the alignment support assembly, used to allow the front end of the inner lining pipe to move synchronously with the front end of the telescopic main rod.

[0008] The support tube assembly includes several fixed sleeves arranged circumferentially on the rear side wall of the telescopic main rod, several sliding columns slidably disposed within the corresponding fixed sleeves along the height direction of the corresponding fixed sleeves, several mounting plates fixed to the ends of the corresponding sliding columns away from the telescopic main rod, several flexible abutment members respectively fixed to the side of the mounting plates away from the telescopic main rod, a threaded adjusting sleeve disposed behind the fixed sleeves and movably sleeved on the rear of the telescopic main rod in the front-back direction, a connecting plate rotatably disposed behind the threaded adjusting sleeve, an anti-detachment component disposed between the threaded adjusting sleeve and the connecting plate to prevent the connecting plate from detaching from the threaded adjusting sleeve, several sliding tracks disposed behind the fixed sleeves along the height direction of the fixed sleeves, several hinge rods hinged between the corresponding sliding columns and the connecting plates and with their middle sections placed within the sliding tracks, and several second push springs fixed between the corresponding mounting plates and the fixed sleeves away from the telescopic main rod, corresponding to each mounting plate.

[0009] Each of the aforementioned hinge rods is hinged to the lower side wall of the corresponding sliding column at its front end, and the rear end of each hinge rod is hinged to the side wall of the corresponding connecting plate at its rear end.

[0010] More preferably, the alignment support assembly includes a mounting sleeve detachably disposed at the front end of the telescopic main rod, a plurality of telescopic support rods arranged circumferentially and fixed to the side wall of the mounting sleeve, a plurality of fixing plates respectively fixed to the free ends of the corresponding telescopic support rods, a plurality of rollers respectively rotatably disposed on the side of the corresponding fixing plate away from the telescopic main rod and rotatably disposed along the length direction of the telescopic main rod, and a plurality of first push springs respectively fixed between the corresponding fixing plate and the end of the fixing rod of the corresponding telescopic support rod away from the telescopic main rod and used to make the rollers fit against the pipe wall.

[0011] More preferably, a key block post is fixedly provided at the front end of the telescopic main rod, and a keyway is provided on the inner wall of the mounting sleeve to cooperate with the key block on the key block post. A threaded post is fixedly provided at the front end of the key block post, and a locking sleeve for limiting the forward sliding of the fixed sleeve is threadedly connected to the threaded post.

[0012] More preferably, a traction hook is fixed at the front end of the threaded post.

[0013] More preferably, the connecting assembly includes a mounting plate threadedly connected to the front of the telescopic main rod, an embedding groove located on the rear side of the mounting plate for embedding and placing the front end of the inner liner tube, and a sealing ring fixed on the rear side of the mounting plate.

[0014] More preferably, the anti-slip assembly includes a limiting rail disposed on the rear side of the threaded adjusting sleeve and a limiting member fixed on the front side of the connecting plate and movably disposed within the limiting rail.

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

[0016] 1. This utility model solves the problem that the existing inner lining tube is easily deformed after being pulled into the pipe by pushing the alignment support component into the pipe. The main telescopic rod is set coaxially with the pipe through the mutual balance of the squeezing force between the inner wall of the pipe and various parts of the alignment support component. The diameter of the support that abuts against the inner wall of the inner lining tube is adjusted by the threaded adjusting sleeve. This allows the pipe support component to support the inner lining tube in a state of coaxiality with the pipe.

[0017] 2. In this utility model, after the mounting plate matching the size of the inner lining tube is threadedly connected to the telescopic main rod, the inner lining tube is pushed forward, causing the front end of the inner lining tube to be embedded in the embedding groove. After the inner lining tube is installed, when cement is poured between the inner lining tube and the pipe, the mounting plate is moved backward, so that the sealing ring on the rear side of the mounting plate isolates the gap between the front end of the inner lining tube and the pipe, preventing the mud from being exposed and facilitating the cement forming connection between the inner lining tube and the pipe. Attached Figure Description

[0018] Figure 1 This is an overall exploded view of the present invention;

[0019] Figure 2 This is an overall exploded rear view of the present invention;

[0020] Figure 3 This is an overall axonometric view of the present invention;

[0021] Figure 4 This is an isolated exploded view of a tube support assembly according to the present invention;

[0022] Figure 5 This is an isolated exploded view of an alignment support assembly according to the present invention;

[0023] Figure 6 This is an isolated view of a connecting component according to the present invention.

[0024] Explanation of reference numerals in the attached figures:

[0025] 1. Telescopic main rod; 2. Alignment support assembly; 21. Mounting sleeve; 22. Telescopic support rod; 23. Fixing plate; 24. Roller; 25. First push spring; 3. Support tube assembly; 31. Fixing sleeve; 32. Sliding column; 33. Mounting plate; 34. Abutment piece; 35. Threaded adjusting sleeve; 36. Connecting plate; 37. Anti-detachment assembly; 371. Limiting rail; 372. Limiting piece; 38. Sliding rail; 39. Hinge rod; 310. Second push spring; 4. Connecting assembly; 41. Mounting plate; 42. Embedded groove; 43. Sealing ring; 5. Key block column; 6. Keyway; 7. Threaded column; 8. Locking sleeve; 9. Traction hook. Detailed Implementation

[0026] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0027] like Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, a trenchless repair device using a lining method in this embodiment includes a telescopic main rod 1 that is movably placed inside a pipe and arranged along the length of the pipe; a detachable alignment support assembly 2 that is sleeved on the front end of the telescopic main rod 1 and used to adjust the telescopic main rod 1 so that it is on the central axis of the pipe; a support pipe assembly 3 that is located at the rear of the telescopic main rod and used to support the inner lining pipe so that the inner lining pipe is coaxial with the telescopic main rod 1; and a connecting assembly 4 that is detachably located on the telescopic main rod 1 and behind the alignment support assembly 2 and used to make the front end of the inner lining pipe move synchronously with the front end of the telescopic main rod 1.

[0028] The support tube assembly 3 includes several fixed sleeves 31 arranged circumferentially at intervals on the rear side wall of the telescopic main rod 1; multiple sliding columns 32 slidably disposed within the corresponding fixed sleeves 31 along the height direction of the corresponding fixed sleeves 31; multiple mounting plates 33 fixed to the ends of the corresponding sliding columns 32 away from the telescopic main rod 1; multiple flexible abutment members 34 respectively fixed to the side of the mounting plates 33 away from the telescopic main rod 1; a threaded adjusting sleeve 35 disposed behind the fixed sleeves 31 and movably sleeved on the rear of the telescopic main rod 1 in the front-back direction; and a rotatable rear side of the threaded adjusting sleeve 35. Connecting plate 36; anti-detachment assembly 37 disposed between threaded adjusting sleeve 35 and connecting plate 36 to prevent connecting plate 36 from detaching from threaded adjusting sleeve 35; multiple sliding rails 38 disposed along the height direction of fixed sleeve 31 on the rear side of fixed sleeve 31; multiple hinge rods 39 corresponding to each sliding column 32 and hinged between the corresponding sliding column 32 and connecting plate 36, with the middle section placed in sliding rail 38; and multiple second push springs 310 corresponding to each mounting plate 33 and fixed between the corresponding mounting plate 33 and fixed sleeve 31 away from telescopic main rod 1.

[0029] Each hinge rod 39 is hinged at its front end to the lower side wall of the corresponding sliding column 32, and the rear end of each hinge rod 39 is hinged at the corresponding side wall of the connecting plate 36.

[0030] When using this product, after inserting the alignment support component 2 into the pipe, the alignment support component 2 drives the telescopic main rod 1 to be coaxial with the pipe. Then, push the front end of the telescopic main rod 1 into the pipe from the rear of the alignment support component 2. After fixing the front part of the telescopic main rod 1 to the installation sleeve 21, put the inner liner tube on the telescopic main rod 1 from the rear end and push it forward continuously. It is connected to the connecting component 4. Then pull the front end of the telescopic main rod 1 forward, driving the inner liner tube to move forward in the pipe until the inner liner tube is completely inside the pipe. The operator rotates the threaded adjusting sleeve 35 from the rear side of the telescopic main rod 1, driving the rear end of the hinge rod 39 to move back and forth, causing the movable column 32 connected to the front end of the hinge rod 39 to slide up and down. This achieves the effect of synchronously adjusting the extension length of each sliding column 32, causing each abutment 34 to abut against the inner wall of the inner liner tube, and adjusting the pressure on the inner liner tube to an appropriate level to prevent the inner liner tube from breaking and maintain coaxial height with the pipe.

[0031] like Figure 1 , Figure 2 , Figure 3 and Figure 5 As shown, the alignment support assembly 2 includes a mounting sleeve 21 detachably disposed at the front end of the telescopic main rod 1, a plurality of telescopic support rods 22 arranged circumferentially and fixed to the side wall of the mounting sleeve 21, a plurality of fixing plates 23 respectively fixed to the free ends of the corresponding telescopic support rods 22, a plurality of rollers 24 respectively rotatably disposed on the side of the corresponding fixing plate 23 away from the telescopic main rod 1 and rotatably disposed along the length direction of the telescopic main rod 1, and a plurality of first push springs 25 respectively fixed between the corresponding fixing plate 23 and the end of the fixing rod of the corresponding telescopic support rod 22 away from the telescopic main rod 1 and used to make the rollers 24 fit against the pipe wall.

[0032] When using this product, the installation sleeve 21 is tilted and placed into the pipe. The remaining telescopic support rods 22 are then placed into the pipe by first excessively compressing one side of the telescopic support rod 22. Then, the installation sleeve 1 is pushed back and forth to adjust its position to a vertical state. At this time, the inner wall of the pipe applies pressure to the rollers 24 on each telescopic support rod 22 in the direction of the central axis of the installation sleeve 1. Through the thrust of each first push spring 25, the telescopic support rods 22 are made to maintain equal elongation, so that the central axis of the installation sleeve 21 is set coaxially with the pipe.

[0033] like Figure 1 , Figure 2 , Figure 3 , Figure 5 and Figure 6 As shown, a key block post 5 is fixedly provided at the front end of the telescopic main rod 1, and a key groove 6 is provided on the inner wall of the mounting sleeve 21 to cooperate with the key block on the key block post 5. A threaded post 7 is fixedly provided at the front end of the key block post 5, and a locking sleeve 8 for limiting the forward sliding of the fixed sleeve 31 is threadedly connected to the threaded post 7.

[0034] When using this product, the installation sleeve 21 is tilted and placed into the pipe. After adjusting it to a vertical position, the front end of the telescopic main rod 1 is pushed into the pipe from the rear of the alignment support component 2. The key block 5 is inserted into the keyway 6 for connection. Then, the locking sleeve 8 is rotated and tightened onto the threaded column 7, so that the rear side of the locking sleeve 8 abuts against the front side of the installation sleeve 21, thereby fixing the position of the installation sleeve 21.

[0035] like Figure 1 , Figure 2 , Figure 3 and Figure 5 As shown, a traction hook 9 is fixed at the front end of the threaded column 7.

[0036] When using this product, the operator can easily move the front end of the telescopic main rod 1 forward by using the traction hook 9.

[0037] like Figure 1 , Figure 2 , Figure 3 and Figure 6 As shown, the connecting assembly 4 includes a mounting plate 41 threadedly connected to the front of the telescopic main rod 1, an embedding groove 42 located on the rear side of the mounting plate 41 for embedding and placing the front end of the inner liner tube, and a sealing ring 43 fixed on the rear side of the mounting plate 41.

[0038] When using this product, the mounting plate 41, which matches the diameter of the inner liner pipe, is threaded onto the front of the telescopic main rod 1. Then, the front end of the telescopic main rod 1 is pushed into the pipe from behind the alignment support assembly 2. The key block 5 is inserted into the keyway 6 for connection. Then, the locking sleeve 8 is rotated and tightened onto the threaded column 7, so that the rear side of the locking sleeve 8 abuts against the front side of the mounting sleeve 21, thereby fixing the position of the mounting sleeve 21. Rotating the mounting plate 41 causes the mounting plate 41 to move backward, so that the sealing ring 43 on the rear side of the mounting plate 41 isolates the gap between the front end of the inner liner pipe and the pipe, preventing mud from being exposed.

[0039] like Figure 4 As shown, the anti-slip assembly 37 includes a limiting rail 371 located on the rear side of the threaded adjusting sleeve 35 and a limiting member 372 fixed on the front side of the connecting plate 36 and movably located within the limiting rail 371.

[0040] When in use, this product ensures that the limiting component 372 remains within the limiting track 371 while rotating the threaded adjusting sleeve 35, thereby preventing it from slipping off.

[0041] The working principle of this device is as follows:

[0042] Step 1: Insert the installation sleeve 21 into the pipe at an angle. First, over-compress one side of the telescopic support rod 22 to insert the remaining telescopic support rods 22 into the pipe. Then, push the installation sleeve 1 back and forth to adjust its position to a vertical state. At this time, the inner wall of the pipe applies pressure to the rollers 24 on each telescopic support rod 22 in the direction of the central axis of the installation sleeve 1. Through the thrust of each first push spring 25, the telescopic support rods 22 are made to maintain equal elongation, so that the central axis of the installation sleeve 21 is set coaxially with the pipe.

[0043] Step 2: Thread the mounting plate 41, which matches the diameter of the inner liner pipe, onto the front of the telescopic main rod 1. Then, push the front end of the telescopic main rod 1 into the pipe from behind the alignment support assembly 2. Insert the key block 5 into the keyway 6 for connection. Then, rotate and tighten the locking sleeve 8 onto the threaded column 7, so that the rear side of the locking sleeve 8 abuts against the front side of the mounting sleeve 21, thereby fixing the position of the mounting sleeve 21.

[0044] Step 3: Then, the inner liner is placed on the telescopic main rod 1 from the rear end and pushed forward until the front end of the inner liner is embedded in the mounting groove 42 on the mounting plate 41. At this time, the operator pulls the front end of the telescopic main rod 1 forward with the traction hook 9, thereby causing the inner liner to move and extend into the pipe.

[0045] Step 4: After the inner liner is fully inserted into the pipe, the operator rotates the threaded adjusting sleeve 35 from the rear of the telescopic main rod 1, causing the rear end of the hinge rod 39 to move back and forth. This causes the movable column 32 connected to the front end of the hinge rod 39 to slide up and down, thereby achieving the effect of synchronously adjusting the extension length of each sliding column 32. This causes each abutment 34 to abut against the inner wall of the inner liner, and adjusts the pressure on the inner liner to an appropriate level to prevent the inner liner from breaking and to maintain coaxial height with the pipe.

[0046] Step 5: Rotate the mounting plate 41 to move the mounting plate 41 to the rear, so that the sealing ring 43 on the rear side of the mounting plate 41 isolates the gap between the front end of the inner liner pipe and the pipe, preventing the mud from being exposed.

[0047] The above description is only a specific embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural transformations made based on the contents of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A trenchless repair device using a padding method, characterized in that: The device includes a telescopic main rod (1) that is movable inside the pipe and arranged along the length of the pipe; a detachable alignment support assembly (2) that is sleeved on the front end of the telescopic main rod (1) and used to adjust the telescopic main rod (1) so that it is on the central axis of the pipe; a pipe support assembly (3) that is located at the rear of the telescopic main rod and used to support the inner liner so that the inner liner is coaxial with the telescopic main rod (1); and a connecting assembly (4) that is detachable on the telescopic main rod (1) and located behind the alignment support assembly (2) so that the front end of the inner liner moves synchronously with the front end of the telescopic main rod (1). The support tube assembly (3) includes several fixed sleeves (31) arranged circumferentially on the rear side wall of the telescopic main rod (1), several sliding columns (32) slidably disposed within the corresponding fixed sleeves (31) along the height direction of the corresponding fixed sleeves (31), several mounting plates (33) fixed at the end of the corresponding sliding columns (32) away from the telescopic main rod (1), several flexible abutment members (34) respectively fixed on the side of the mounting plate (33) away from the telescopic main rod (1), a threaded adjusting sleeve (35) disposed behind the fixed sleeves (31) and movably sleeved on the rear of the telescopic main rod (1) in the front-back direction, and a connecting sleeve rotatably disposed on the rear side of the threaded adjusting sleeve (35). Plate (36), anti-detachment assembly (37) disposed between threaded adjusting sleeve (35) and connecting plate (36) and used to prevent connecting plate (36) from detaching from threaded adjusting sleeve (35), multiple sliding rails (38) disposed along the height direction of fixed sleeve (31) on the rear side of fixed sleeve (31), multiple hinge rods (39) corresponding to each sliding column (32) hinged between the corresponding sliding column (32) and connecting plate (36) and with the middle section placed in sliding rail (38), and multiple second push springs (310) corresponding to each mounting plate (33) fixed between the corresponding mounting plate (33) and fixed sleeve (31) away from telescopic main rod (1); The front end of each of the hinge rods (39) is hinged to the lower side wall of the corresponding sliding column (32), and the rear end of each of the hinge rods (39) is hinged to the side wall of the corresponding connecting plate (36).

2. The trenchless repair device using the padding method according to claim 1, characterized in that: The alignment support assembly (2) includes a mounting sleeve (21) detachably mounted at the front end of the telescopic main rod (1), a plurality of telescopic support rods (22) arranged circumferentially and fixed on the side wall of the mounting sleeve (21), a plurality of fixing plates (23) respectively fixed on the free end of the corresponding telescopic support rod (22), a plurality of rollers (24) respectively rotatably mounted on the side of the corresponding fixing plate (23) away from the telescopic main rod (1) and rotatably mounted along the length direction of the telescopic main rod (1), and a plurality of first push springs (25) respectively fixed between the corresponding fixing plate (23) and the end of the fixing rod of the corresponding telescopic support rod (22) away from the telescopic main rod (1) and used to make the rollers (24) fit against the pipe wall.

3. The trenchless repair device using the padding method according to claim 2, characterized in that: The telescopic main rod (1) is fixedly provided with a key block post (5) at the front end. The inner wall of the mounting sleeve (21) is provided with a key groove (6) that is connected to the key block on the key block post (5). The key block post (5) is fixedly provided with a threaded post (7) at the front end. A locking sleeve (8) for limiting the forward sliding of the fixed sleeve (31) is threaded onto the threaded post (7).

4. The trenchless repair device using the padding method according to claim 3, characterized in that: The threaded post (7) is fixedly provided with a traction hook (9) at its front end.

5. The trenchless repair device using a lining method according to claim 1, characterized in that: The connecting assembly (4) includes a mounting plate (41) threadedly connected to the front of the telescopic main rod (1), an embedding groove (42) located on the rear side of the mounting plate (41) for embedding and placing the front end of the inner liner tube, and a sealing ring (43) fixed on the rear side of the mounting plate (41).

6. The trenchless repair device using the padding method according to claim 1, characterized in that: The anti-slip assembly (37) includes a limiting rail (371) located on the rear side of the threaded adjusting sleeve (35) and a limiting member (372) fixed on the front side of the connecting plate (36) and movably located within the limiting rail (371).

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