Plastic pipeline collapse non-excavation repair device

Abstract

The utility model relates to a plastic pipeline collapse non-excavation repair device, which relates to the technical field of non-excavation pipeline repair, and comprises a rack, a supporting mechanism, a jacking assembly and a locking assembly, the jacking assembly comprises a first supporting plate and a second supporting plate which are arranged on the rack through a supporting mechanism, and the supporting mechanism is used for controlling the first supporting plate and the second supporting plate to move in the direction away from each other; the locking assembly comprises a shell, a sliding strip, a spring and a plurality of limiting blocks, the sliding strip is arranged on the first supporting plate, the shell is arranged on the second supporting plate, the sliding strip is installed on the shell in a sliding mode by forming a first sliding groove, and the limiting blocks are installed on the two sides of the sliding strip in a sliding mode by forming second sliding grooves; the spring is arranged between the limiting blocks on the two sides of the sliding strip, and limiting grooves are formed in the inner walls of the two sides of the first sliding groove. By means of the supporting mechanism, the jacking assembly and the locking assembly, a worker can repair a collapsed plastic pipe under the condition that excavation is not carried out.

Description

Technical Field

[0001] The utility model relates to the technical field of trenchless pipeline repair, in particular to a trenchless repair device for collapsed plastic pipelines. Background Art

[0002] Underground plastic sewage pipes and plastic drainage pipes, among others, experience a degradation of their load-bearing capacity over time. Furthermore, as urban construction, expansion, and renovations cause changes in the ground surface, ground loads increase beyond the pipe's inherent bearing capacity, causing the pipes to deform or collapse, impacting their drainage and sewage functions. If deformation or collapse of underground pipes is not promptly addressed, there is a risk of sewage overflows and pollution of the surrounding environment, or road collapse. Therefore, timely repair of deformed or collapsed pipes is necessary to ensure proper drainage and sewage functions.

[0003] At present, the repair of deformed or collapsed plastic pipes is mostly done by excavating the deformed or collapsed parts, cutting the deformed or collapsed plastic pipes by robots or manually, and then replacing them with new plastic pipes to achieve the repair of plastic pipes. The above methods of repairing deformed or collapsed plastic pipes have the following problems: 1. The local excavation method has a relatively large impact on the environment and road traffic, and the construction period is long, the repair efficiency is low, and the repair cost is high. After the pipe is repaired, backfilling is required to restore the original landform, which greatly increases the cost of pipeline repair and reduces the efficiency of pipeline repair;

[0004] 2. Cutting deformed or collapsed plastic pipes by robots has the problems of slow cutting speed and high cost; manually cutting deformed or collapsed plastic pipes has the problem of high cutting risk factor. Utility Model Content

[0005] The utility model provides a trenchless repair device for a collapsed plastic pipe. By operating the repair device on a deformed or collapsed plastic pipe, the deformed or collapsed position of the plastic pipe can be repaired without performing local excavation, so that the original shape can be restored, thereby greatly improving the repair efficiency of the plastic pipe and reducing the repair cost and repair period.

[0006] The present invention provides a trenchless repair device for a collapsed plastic pipe, comprising:

[0007] Frame, support mechanism, top support assembly and locking assembly;

[0008] The supporting assembly includes a first supporting plate and a second supporting plate arranged on the frame by a supporting mechanism, and the supporting mechanism is used to control the first supporting plate and the second supporting plate to move in a direction away from each other;

[0009] The locking assembly includes a shell, a slide, a spring and a plurality of limit blocks, the slide is arranged on a first support plate, the shell is arranged on a second support plate, the slide is slidably mounted on the shell by opening a first slide groove, and the limit blocks are slidably mounted on both sides of the slide by opening a second slide groove, the spring is arranged between the limit blocks on both sides of the slide, and a plurality of limit grooves are provided on the inner walls on both sides of the first slide groove;

[0010] A first guide surface is formed between a side surface of the limiting groove away from the limiting block and a side surface close to the first support plate, and a second guide surface matching the first guide surface is provided on the limiting block.

[0011] The above-mentioned technical solution in the embodiment of the present application has at least the following technical effects: when the supporting assembly is moved to the collapsed part of the plastic pipe, the supporting mechanism is started to move the first supporting plate and the second supporting plate in a direction away from each other, the slide bar moves upward, and the limit bar moves in a direction away from the limiting groove under the action of the first guide surface and the second guide surface. The first supporting plate and the second supporting plate support the collapsed part of the plastic pipe until the plastic pipe is restored to its original state. The slide bar is clamped in the corresponding limiting groove under the elastic force of the spring to form a clamping fixation, so that it is difficult for the first supporting plate and the second supporting plate to loosen, and the repair is completed.

[0012] In some embodiments, a first limiting surface is provided on the side of the limiting groove away from the first support plate, the first limiting surface is perpendicular to the moving direction of the push-pull block, and a second limiting surface is provided on the limiting block to match the first limiting surface.

[0013] In some embodiments, a first abutting surface is formed between a side of the first support plate away from the frame and a side of the second support plate away from the frame, and a second abutting surface is formed between a side of the second support plate away from the frame and a side of the first support plate away from the frame.

[0014] In some embodiments, a connecting rod is provided on the frame, and the supporting mechanism includes a cylinder, a top plate and a bottom plate. The cylinder is provided on the connecting rod, and the top plate and the bottom plate are respectively provided at the fixed end and the output end of the cylinder, and the top plate and the bottom plate are respectively attached to the first support plate and the second support plate along the side away from each other.

[0015] In some embodiments, baffles are provided at both ends of the top plate and the bottom plate, and both ends of the first support plate and the second support plate are in contact with the baffles.

[0016] In some embodiments, the first support plate and the second support plate are provided with arc-shaped recesses along one side close to each other, and the top plate and the bottom plate are arc-shaped.

[0017] In some embodiments, a plurality of wheels are installed on the bottom of the frame.

[0018] In summary, the present invention has at least one of the following beneficial technical effects:

[0019] 1. When the supporting assembly is moved to the collapsed part of the plastic pipe, the supporting mechanism is started to move the first supporting plate and the second supporting plate in directions away from each other, the slide bar moves upward, and the limit bar moves in a direction away from the limit groove under the action of the first guide surface and the second guide surface. The first supporting plate and the second supporting plate support the collapsed part of the plastic pipe until the plastic pipe is restored to its original shape. The slide bar is clamped in the corresponding limit groove under the elastic force of the spring to form a clamping fixation. Therefore, the repair device can repair the deformed or collapsed position of the plastic pipe without local excavation, so that it can be restored to its original shape, which greatly improves the repair efficiency of the plastic pipe and reduces the repair cost and repair period. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the embodiments or descriptions of the prior art. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0021] Figure 1 A schematic diagram of the three-dimensional structure of a trenchless repair device for a collapsed plastic pipe provided in an embodiment of the present application;

[0022] Figure 2 It is a structural diagram of the top support assembly and the locking assembly;

[0023] Figure 3 This is a diagram of the internal structure of the locking assembly;

[0024] Figure 4 This is a structural diagram of the supporting mechanism.

[0025] Among them, the reference numerals in the figures are:

[0026] 10. Frame; 11. Connecting rod; 12. Wheel; 20. Support mechanism; 21. Cylinder; 22. Top plate; 23. Bottom plate; 24. Baffle; 30. Top support assembly; 31. First support plate; 311. First abutting surface; 32. Second support plate; 321. Second abutting surface; 33. Arc-shaped recess; 40. Locking assembly; 41. Housing; 411. First slide groove; 412. Limiting groove; 413. First guide surface; 414. First limiting surface; 42. Slide bar; 422. Second slide groove; 43. Spring; 44. Limiting block; 441. Second guide surface; 442. Second limiting surface. DETAILED DESCRIPTION

[0027] In order to make the technical problems, technical solutions and beneficial effects to be solved by this application more clearly understood, this application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this application and are not intended to limit this application.

[0028] Based on this, in order to enable the repair device to operate on deformed or collapsed plastic pipes, the deformed or collapsed parts of the plastic pipes can be repaired without local excavation, restoring them to their original shape, greatly improving the repair efficiency of the plastic pipes and reducing the repair cost and repair period. The embodiments of the present application provide the following solutions.

[0029] Please also refer to Figures 1 to 4 , the embodiment of the present application provides a non-excavation repair device for a collapsed plastic pipe, comprising a frame 10, a supporting mechanism 20, a supporting assembly 30 and a locking assembly 40;

[0030] The supporting assembly 30 includes a first supporting plate 31 and a second supporting plate 32 provided on the frame 10 by a supporting mechanism 20, and the supporting mechanism 20 is used to control the first supporting plate 31 and the second supporting plate 32 to move away from each other;

[0031] The locking assembly 40 includes a housing 41, a slide 42, a spring 43, and a plurality of limit blocks 44. The slide 42 is arranged on the first support plate 31, and the housing 41 is arranged on the second support plate 32. The housing 41 is provided with a first slide groove 411 for slidably mounting the slide 42. The two sides of the slide 42 are provided with second slide grooves 422 for slidably mounting the limit blocks 44. The spring 43 is arranged between the limit blocks 44 on both sides of the slide 42. A plurality of limit grooves 412 are provided on the inner walls of both sides of the first slide groove 411.

[0032] A first guide surface 413 is formed between a side surface of the limiting groove 412 away from the limiting block 44 and a side surface close to the first support plate 31 . A second guide surface 441 is provided on the limiting block 44 to match the first guide surface 413 .

[0033] As can be seen from the above, when the supporting assembly 30 is moved to the collapsed part of the plastic pipe, the supporting mechanism 20 is started to move the first supporting plate 31 and the second supporting plate 32 in the direction away from each other, the slide bar 42 moves up, and the limit bar moves in the direction away from the limit groove 412 under the action of the first guide surface 413 and the second guide surface 441. The first supporting plate 31 and the second supporting plate 32 support the collapsed part of the plastic pipe until the plastic pipe is restored to its original state. The slide bar 42 is clamped in the corresponding limit groove 412 under the elastic force of the spring 43, forming a clamping fixation, further reducing the probability of loosening between the first supporting plate 31 and the second supporting plate 32, and completing the repair.

[0034] Optionally, in some embodiments, see Figure 1 A plurality of wheels 12 are installed at the bottom of the frame 10.

[0035] This arrangement makes it convenient for workers to move the repair device by driving it through the wheels 12.

[0036] Optionally, in some embodiments, see Figures 1 to 4 A first limiting surface 414 is provided on the side of the limiting groove 412 away from the first support plate 31. The first limiting surface 414 is perpendicular to the moving direction of the push-pull block. A second limiting surface 442 that matches the first limiting surface 414 is provided on the limiting block 44.

[0037] With such a configuration, after the collapsed part of the pipe is propped up, the slide bar 42 is clamped in the corresponding limit groove 412 under the elastic force of the spring 43, and the limit bar 34 moves into the limit groove 412211 to form a limit. The first limit surface 414212 and the second limit surface 442341 are against each other and are difficult to loosen, thereby making it difficult for the first support plate 31 and the second support plate 32 to loosen, thereby increasing the stability of the locking assembly 40.

[0038] Optionally, in some embodiments, see Figures 1 to 2 A first abutting surface 311 is formed between a side of the first support plate 31 away from the frame 10 and a side of the second support plate 32 , and a second abutting surface 321 is formed between a side of the second support plate 32 away from the frame 10 and a side of the first support plate 31 .

[0039] With such arrangement, when the pipe collapses excessively, the collapsed part is likely to contact the first abutting surface 311 or the second abutting surface 321. The wheel 12 is rotated so that the collapsed part abuts against the first abutting surface 311 or the second abutting surface 321, and preliminary collapse propping-up repair is performed. When the first support plate 31 and the second support plate 32 squeeze into the collapsed part of the plastic pipe, the propping-up mechanism 20 is started to move the first support plate 31 and the second support plate 32 in a direction away from each other until the plastic pipe is restored to its original state.

[0040] Optionally, in some embodiments, see Figures 1 to 4 A connecting rod 11 is provided on the frame 10, and the supporting mechanism 20 includes a cylinder 21, a top plate 22 and a bottom plate 23. The cylinder 21 is provided on the connecting rod 11, and the top plate 22 and the bottom plate 23 are respectively provided at the fixed end and the output end of the cylinder 21. The top plate 22 and the bottom plate 23 are respectively attached to the first support plate 31 and the second support plate 32 along the side away from each other.

[0041] When the support assembly 30 moves to the collapsed position of the plastic pipe, the cylinder 21 is started, and the top plate 22 and the bottom plate 23 move in the direction away from each other, so that the first support plate 31 and the second support plate 32 move in the direction away from each other, the slide bar 42 moves up, and the limit bar moves in the direction away from the limit groove 412 under the action of the first guide surface 413 and the second guide surface 441 until the plastic pipe is restored to its original shape, and the slide bar 42 is clamped in the corresponding limit groove 412 under the elastic force of the spring 43, forming a clamping fixation, so that the first support plate 31 and the second support plate 32 abut against the inside of the plastic pipe, and the cylinder 21 is started again, so that the top plate 22 and the bottom plate 23 move in the direction close to each other until they are separated from the first support plate 31 and the second support plate 32, and the wheel 12 is rotated, so that the frame 10 and the supporting mechanism 20 can be driven out of the pipe for the next use.

[0042] Optionally, in some embodiments, see Figures 1 to 4 Both ends of the top plate 22 and the bottom plate 23 are provided with baffles 24 , and both ends of the first support plate 31 and the second support plate 32 are in contact with the baffles 24 .

[0043] With this arrangement, both ends of the first support plate 31 and the second support plate 32 are in contact with the baffle 24 , so that the first support plate 31 and the second support plate 32 are unlikely to shake or deviate during transportation.

[0044] Optionally, in some embodiments, see Figures 1 to 4 The first support plate 31 and the second support plate 32 are provided with an arc-shaped recess 33 along one side close to each other, and the top plate 22 and the bottom plate 23 are arc-shaped.

[0045] With this arrangement, the top plate 22 and the bottom plate 23 are arc-shaped and are in contact with the inner wall of the arc-shaped recess 33, so that the two sides of the top plate 22 and the bottom plate 23 are respectively in contact with the side walls of the first support plate 31 and the second support plate 32, making it difficult for the first support plate 31 and the second support plate 32 to shake or deviate during transportation.

[0046] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present application should be included in the scope of protection of the present application.

Claims

1. A trenchless repair device for collapsed plastic pipes, characterized by: It comprises a frame (10), a supporting mechanism (20), a supporting assembly (30) and a locking assembly (40); The supporting assembly (30) includes a first supporting plate (31) and a second supporting plate (32) which are arranged on the frame (10) through a supporting mechanism (20), and the supporting mechanism (20) is used to control the first supporting plate (31) and the second supporting plate (32) to move in a direction away from each other; The locking assembly (40) includes a shell (41), a slide bar (42), a spring (43) and a plurality of limit blocks (44); the slide bar (42) is arranged on the first support plate (31); the shell (41) is arranged on the second support plate (32); the shell (41) is provided with a first slide groove (411) for slidingly installing the slide bar (42); the two sides of the slide bar (42) are provided with second slide grooves (422) for slidingly installing the limit blocks (44); the spring (43) is provided between the limit blocks (44) on both sides of the slide bar (42); and a plurality of limit grooves (412) are provided on the inner walls on both sides of the first slide groove (411); A first guide surface (413) is formed between a side surface of the limiting groove (412) away from the limiting block (44) and a side surface close to the first support plate (31), and a second guide surface (441) matching the first guide surface (413) is provided on the limiting block (44).

2. The trenchless repair device for a collapsed plastic pipe according to claim 1, characterized in that: A first limiting surface (414) is provided on a side of the limiting groove (412) away from the first support plate (31), the first limiting surface (414) being perpendicular to the moving direction of the push-pull block, and a second limiting surface (442) cooperating with the first limiting surface (414) is provided on the limiting block (44).

3. The trenchless repair device for collapsed plastic pipe according to claim 2, characterized in that: A first abutting surface (311) is formed between a side surface of the first support plate (31) away from the frame (10) and a side surface away from the second support plate (32), and a second abutting surface (321) is formed between a side surface of the second support plate (32) away from the frame (10) and a side surface away from the first support plate (31).

4. A trenchless repair device for a collapsed plastic pipe according to any one of claims 1 to 3, characterized in that: A connecting rod (11) is provided on the frame (10), and the supporting mechanism (20) comprises a cylinder (21), a top plate (22) and a bottom plate (23). The cylinder (21) is provided on the connecting rod (11), and the top plate (22) and the bottom plate (23) are respectively provided at a fixed end and an output end of the cylinder (21). The top plate (22) and the bottom plate (23) are respectively attached to a first supporting plate (31) and a second supporting plate (32) along a side away from each other.

5. The trenchless repair device for a collapsed plastic pipe according to claim 4, characterized in that: Baffles (24) are provided at both ends of the top plate (22) and the bottom plate (23), and both ends of the first support plate (31) and the second support plate (32) are in contact with the baffles (24).

6. The trenchless repair device for a collapsed plastic pipe according to claim 5, characterized in that: The first support plate (31) and the second support plate (32) are provided with arc-shaped notches (33) along one side close to each other, and the top plate (22) and the bottom plate (23) are arc-shaped.

7. The trenchless repair device for a collapsed plastic pipe according to claim 1, characterized in that: A plurality of wheels (12) are installed at the bottom of the frame (10).

Images