Hot-melt plugging and positioning tool for pipeline joint construction

Abstract

The utility model relates to pipeline construction technical field, concretely relates to a kind of hot-melt plugging positioning tool for pipeline joint construction, including handle and fixed cylinder, the fixed cylinder is fixedly connected in the top of handle, the front end in the fixed cylinder inside is equipped with clamping assembly, the outside of clamping assembly is equipped with limiting component, compared with existing positioning tool, through the joint action of multiple clamping plates and clamping blocks, hot-melt plugging head can be stably and evenly clamped, avoid loose or fall off, manual pulling and pushing moving rod can realize the expansion and shrinkage of clamping plate, simple and quick operation, the design of limiting component ensures the stability and reliability of clamping process, avoids the security risk caused by improper operation or tool failure, the collaborative work of limiting component and clamping assembly makes the whole operation process more concise and clear, reduces operation difficulty and time cost.

Description

Technical Field

[0001] This utility model relates to the field of pipeline construction technology, specifically to a hot-melt sealing and positioning tool for pipeline repair construction. Background Technology

[0002] In traditional on-site construction and patching of directly buried heating pipelines, a polyethylene outer sheath needs to be inserted onto both ends of the pipeline. After heat fusion, the polyethylene outer sheath is perforated and polyurethane foam insulation is applied. The polyethylene outer sheath requires two holes—an injection hole and a vent hole—perforated at specific intervals. After the polyurethane injection and foaming are complete, the injection and vent holes need to be sealed promptly to complete the patching process. However, in areas with high water levels, poor sealing of the injection and vent holes can easily lead to water ingress and overall cracking. Traditional sealing methods rely on the experience of patching technicians to control the sealing depth, making it difficult to control the insertion depth of the sealing head, and there is also the problem of uneven stress during sealing.

[0003] A search revealed that CN222823952U discloses a hot-melt sealing and positioning tool for pipeline repair construction, including a first handle and a second handle, with a spring between the first and second handles. A first clamping plate is provided on both the front and rear surfaces of the top of the first handle, and a second clamping plate is provided on both the front and rear surfaces of the top of the second handle. The left ends of the first and second clamping plates are rotatably connected by a pin. A clamping head is provided on the right end of both the first and second clamping plates. A clamping groove is provided on the opposing clamping surfaces of the two clamping heads. The two clamping grooves are spliced ​​together to form a clamping hole for clamping the hot-melt sealing head. An installation plate is provided in the middle of the bottom end of the second clamping plate. The installation plate is connected to a limiting support frame that contacts the outer wall of the pipeline by a bolt assembly. This utility model uses a limiting support frame to limit the insertion of the hot-melt sealing head, preventing it from being inserted too deeply or too shallowly, making it convenient to use and greatly improving work efficiency. However, its drawback is that while the tooling uses two sets of support claws to clamp the hot-melt sealing head, the cylindrical design of the front end of the support claws results in a small contact area with the hot-melt sealing head. This leads to loosening and potential detachment of the hot-melt sealing head, affecting sealing efficiency. Therefore, improving the existing positioning tooling and designing a new type of hot-melt sealing positioning tool for pipeline repair to solve the above-mentioned technical defects and improve the overall practicality of the positioning tooling is particularly important. Utility Model Content

[0004] The purpose of this utility model is to provide a hot-melt sealing and positioning tool for pipeline repair construction. Through the combined action of multiple sets of clamping plates and clamping blocks, it can stably and evenly clamp the hot-melt sealing head, preventing loosening or falling off. The expansion and contraction of the clamping plates can be achieved by manually pulling and pushing the moving rod. The operation is simple and quick. The design of the clamping components allows it to adapt to hot-melt sealing heads of different sizes, improving the versatility and practicality of the tool, thereby solving the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A hot-melt sealing and positioning tool for pipe repair construction includes a handle and a fixing cylinder. The fixing cylinder is fixedly connected to the top of the handle. A clamping component is provided at the front end inside the fixing cylinder, and a limiting component is provided on the outside of the clamping component.

[0007] The clamping assembly is used to clamp the hot melt sealing head. The clamping assembly includes a connecting plate fixedly connected to the front end of the inside of the fixed cylinder. Multiple sets of clamping plates are slidably connected to the outside of the connecting plate. Two sets of rotating frames are rotatably connected inside the clamping plates. A guide post is fixedly connected to the middle of the connecting plate and between the multiple sets of clamping plates. A movable sleeve is slidably connected to the outside of the guide post.

[0008] The limiting component is used to limit the movement of the sleeve.

[0009] As a preferred embodiment of this utility model, the connecting plate has sliding grooves on all four sides inside, and the clamping plate extends into the sliding groove and is slidably connected to a sliding block, wherein the sliding block and the sliding groove are slidably connected.

[0010] As a preferred embodiment of this utility model, the inner side of the sliding block is rotatably connected to multiple sets of guide wheels, the guide wheels are slidably connected to the connecting disc, and the front end of the clamping plate is fixedly connected to a clamping block.

[0011] As a preferred embodiment of this utility model, the end of the rotating frame away from the clamping plate is rotatably connected to the movable sleeve, and multiple sets of the rotating frames are designed in a symmetrical structure on the outside of the movable sleeve.

[0012] As a preferred embodiment of this utility model, the limiting component includes a movable rod slidably connected inside the fixed cylinder, the movable rod being fixedly connected to the movable sleeve, a connecting ring being fixedly connected to the outer side of the movable rod, and a fixed ring being fixedly connected inside the fixed cylinder and located outside the movable rod.

[0013] As a preferred embodiment of this utility model, the moving rod and the fixed ring are slidably connected, and a compression spring is sleeved between the fixed ring and the connecting ring and located outside the moving rod, with the two ends of the compression spring being fixedly connected to the fixed ring and the connecting ring respectively.

[0014] As a preferred embodiment of this utility model, a movable ring is fixedly connected to the front end of the movable rod, and multiple sets of limiting grooves are opened at the end of the movable ring near the fixed ring. Multiple sets of limiting balls are fixedly connected to the end of the fixed ring near the movable ring, and the fixed ring is connected to the limiting grooves through the limiting balls.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] 1. In this utility model, the clamping assembly is designed to consist mainly of a connecting plate, a clamping plate, a rotating frame, a guide post, and a movable sleeve. The connecting plate is fixedly connected to the front end of the fixed cylinder. The clamping plate is slidably connected to the sliding groove on the connecting plate via a sliding block, ensuring that the clamping plate can move stably and smoothly outside the connecting plate. One end of the rotating frame is rotatably connected to the inside of the clamping plate, and the other end is rotatably connected to the movable sleeve. This design allows the displacement of the movable sleeve to be converted into the expansion or contraction of the clamping plate. In the initial state, before operation, the clamping plate is kept in an inward contraction state by the compression spring through the rotating frame and the movable sleeve, thus expanding the clamping plate. When it is necessary to place the hot melt sealing head, the movable rod is manually pulled, causing the movable sleeve to move backward. Due to the design of the rotating frame, the clamping plate will expand outward accordingly, allowing the hot melt sealing head to be placed. The sealing head provides space and locks the position. The displacement of the moving rod simultaneously drives the displacement of the moving ring, so that the limiting groove connects with the limiting ball on the fixed ring, locking the position of the moving rod, thereby maintaining the expansion state of the clamping plate. After releasing and clamping, after placing the hot melt sealing head between multiple sets of clamping plates, push the moving rod, and the moving ring moves out from the outside of the fixed ring. The compression spring pulls the connecting ring and the moving rod forward, and the clamping plate retracts inward through the rotating frame. The clamping block tightly clamps the hot melt sealing head. Through the combined action of multiple sets of clamping plates and clamping blocks, the hot melt sealing head can be stably and evenly clamped, preventing loosening or falling off. The expansion and contraction of the clamping plate can be achieved by manually pulling and pushing the moving rod. The operation is simple and quick. The design of the clamping component allows it to adapt to hot melt sealing heads of different sizes, improving the versatility and practicality of the tooling.

[0017] 2. In this utility model, the limiting component is designed to mainly consist of a moving rod, a connecting ring, a fixed ring, a compression spring, a limiting groove, and a limiting ball. The moving rod is slidably connected to the inside of the fixed cylinder and is connected to the compression spring through the connecting ring. The other end of the compression spring is fixedly connected to the fixed ring. The moving ring is fixedly connected to the front end of the moving rod, and the limiting groove on it cooperates with the limiting ball on the fixed ring to achieve the limiting function. In the initial state, before operation, the compression spring is in a compressed state, applying a forward pulling force to the connecting ring and the moving rod, limiting the expansion of the clamping plate. When the moving rod is pulled to expand the clamping plate, the moving ring moves backward until the limiting groove connects with the limiting ball, locking the position of the moving rod and preventing it from shifting due to... The compression spring automatically resets the device, releasing the limit and clamping it. When clamping the heat-melt sealing plug, pushing the moving rod causes the moving ring to displace from the outside of the fixed ring, separating the limit groove from the limit ball. The compression spring pulls the connecting ring and the moving rod forward, causing the clamping plate to retract and clamp the heat-melt sealing plug. Through the cooperation of the limit groove and the limit ball, the position of the moving rod can be stably locked, preventing the moving rod from automatically resetting due to external force or internal spring force during clamping. The design of the limit component ensures the stability and reliability of the clamping process, avoiding safety hazards caused by improper operation or tooling failure. The coordinated work of the limit component and the clamping component makes the entire operation process simpler and clearer, reducing the difficulty of operation and time cost. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the clamping component structure of this utility model;

[0020] Figure 3 This is a schematic diagram of the sliding block structure of this utility model;

[0021] Figure 4 This is a schematic diagram of the limiting component structure of this utility model.

[0022] In the diagram: 1. Handle; 2. Fixed cylinder; 3. Clamping assembly; 4. Limiting assembly; 5. Connecting plate; 6. Clamping plate; 7. Rotating frame; 8. Guide post; 9. Moving sleeve; 10. Sliding groove; 11. Sliding block; 12. Guide wheel; 13. Clamping block; 14. Moving rod; 15. Connecting ring; 16. Fixed ring; 17. Compression spring; 18. Moving ring; 19. Limiting groove; 20. Limiting ball. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model. Example

[0024] Please see Figures 1-4 This utility model provides a technical solution:

[0025] A hot-melt sealing and positioning tool for pipe repair construction includes a handle 1 and a fixing cylinder 2. The fixing cylinder 2 is fixedly connected to the top of the handle 1. A clamping component 3 is provided at the front end inside the fixing cylinder 2, and a limiting component 4 is provided on the outside of the clamping component 3.

[0026] The clamping assembly 3 is used to clamp the hot melt sealing head. The clamping assembly 3 includes a connecting plate 5 fixedly connected to the front end of the inside of the fixed cylinder 2. Multiple clamping plates 6 are slidably connected to the outside of the connecting plate 5. Two rotating frames 7 are rotatably connected inside the clamping plates 6. A guide post 8 is fixedly connected to the middle of the connecting plate 5 and between the multiple clamping plates 6. A movable sleeve 9 is slidably connected to the outside of the guide post 8.

[0027] The limiting component 4 is used to limit the movement of the sleeve 9.

[0028] Furthermore, sliding grooves 10 are provided around the inside of the connecting plate 5. A sliding block 11 is slidably connected to the inside of the sliding groove 10 of the clamping plate 6. The sliding block 11 is slidably connected to the sliding groove 10. Multiple sets of guide wheels 12 are rotatably connected to the inner side of the sliding block 11. The guide wheels 12 are slidably connected to the connecting plate 5. A clamping block 13 is fixedly connected to the front end inside the clamping plate 6. The end of the rotating frame 7 away from the clamping plate 6 is rotatably connected to the moving sleeve 9. The multiple sets of rotating frames 7 are symmetrically designed on the outer side of the moving sleeve 9. The sliding block 11 is slidably connected to the sliding groove 10. When the moving sleeve 9 moves and drives the rotating frame 7 to move, the clamping plate 6 moves. The sliding connection between the sliding block 11 and the sliding groove 10 guides the clamping plate 6, allowing it to move stably. When the sliding block 11 moves, multiple sets of guide wheels 12 can increase the smoothness of the sliding block 11's movement. When the clamping plate 6 contacts the hot melt sealing head, the clamping block 13 can clamp the bottom of the hot melt sealing head.

[0029] Secondly, the limiting component 4 includes a movable rod 14 slidably connected inside the fixed cylinder 2. The movable rod 14 is fixedly connected to the movable sleeve 9 and slidably connected to the guide post 8. A connecting ring 15 is fixedly connected to the outer side of the movable rod 14. A fixed ring 16 is fixedly connected inside the fixed cylinder 2 and located outside the movable rod 14. Pulling the movable rod 14 causes the movable sleeve 9 to move, which causes multiple sets of rotating frames 7 to move, causing multiple sets of clamping plates 6 to expand outward. Pushing the movable rod 14 causes the movable sleeve 9 to move, and multiple sets of rotating frames 7 can cause multiple sets of clamping plates 6 to retract inward.

[0030] Furthermore, the moving rod 14 and the fixed ring 16 are slidably connected. A compression spring 17 is sleeved between the fixed ring 16 and the connecting ring 15 and located outside the moving rod 14. The two ends of the compression spring 17 are fixedly connected to the fixed ring 16 and the connecting ring 15 respectively. The compression spring 17 pulls the connecting ring 15 to move, so that the moving rod 14 can move forward and drive the moving sleeve 9 to move forward.

[0031] Furthermore, a moving ring 18 is fixedly connected to the front end of the moving rod 14. Multiple sets of limiting grooves 19 are opened at the end of the moving ring 18 near the fixed ring 16. Multiple sets of limiting balls 20 are fixedly connected at the end of the fixed ring 16 near the moving ring 18. The fixed ring 16 is connected to the limiting grooves 19 through the limiting balls 20. When the moving rod 14 is pulled, the displacement of the moving rod 14 causes the moving ring 18 to move, so that the limiting grooves 19 and the limiting balls 20 are connected in a limiting manner. This allows the fixed ring 16 to limit the moving ring 18, thus locking the moving rod 14 and facilitating the placement of the hot melt sealing head between the multiple sets of clamping plates 6.

[0032] In this embodiment, the specific implementation scenario is as follows: In actual use, pulling the moving rod 14 causes the moving sleeve 9 to shift, resulting in the displacement of multiple sets of rotating frames 7, which in turn causes multiple sets of clamping plates 6 to expand outward. Simultaneously, the displacement of the moving rod 14 causes the moving ring 18 to shift, resulting in the limiting groove 19 and the limiting ball 20 forming a limiting connection. This allows the fixed ring 16 to limit the moving ring 18, thus locking the moving rod 14. This facilitates placing the hot melt sealing head between multiple sets of clamping plates 6. Pushing the moving rod 14 displaces the moving ring 18 from the outside of the fixed ring 16. The compression spring 17 pulls the connecting ring 15, causing the moving rod 14 to shift forward, which in turn causes the moving sleeve 9 to shift forward. The multiple sets of rotating frames 7 can cause the multiple sets of clamping plates 6 to contract inward, allowing the clamping block 13 to clamp the hot melt sealing head. Compared with existing positioning fixtures, this utility model improves the overall practicality of the positioning fixture through its design.

[0033] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A hot-melt sealing and positioning tool for pipe repair construction, comprising a handle (1) and a fixing cylinder (2), characterized in that: The fixed cylinder (2) is fixedly connected to the top of the handle (1). The front end of the fixed cylinder (2) is provided with a clamping component (3), and the outside of the clamping component (3) is provided with a limiting component (4). The clamping assembly (3) is used to clamp the hot melt sealing head. The clamping assembly (3) includes a connecting plate (5) fixedly connected to the front end of the inside of the fixed cylinder (2). Multiple clamping plates (6) are slidably connected to the outside of the connecting plate (5). Two rotating frames (7) are rotatably connected inside the clamping plate (6). A guide post (8) is fixedly connected to the middle of the connecting plate (5) and between the multiple clamping plates (6). A movable sleeve (9) is slidably connected to the outside of the guide post (8). The limiting component (4) is used to limit the movement of the sleeve (9).

2. The hot-melt sealing and positioning tool for pipeline repair construction according to claim 1, characterized in that: The connecting plate (5) has sliding grooves (10) on all four sides inside. The clamping plate (6) extends into the sliding groove (10) and is slidably connected to a sliding block (11). The sliding block (11) and the sliding groove (10) are slidably connected.

3. The hot-melt sealing and positioning tool for pipeline repair construction according to claim 2, characterized in that: The inner side of the sliding block (11) is rotatably connected to multiple sets of guide wheels (12), the guide wheels (12) are slidably connected to the connecting plate (5), and the front end of the clamping plate (6) is fixedly connected to a clamping block (13).

4. The hot-melt sealing and positioning tooling for pipeline repair construction according to claim 1, characterized in that: The end of the rotating frame (7) away from the clamping plate (6) is rotatably connected to the movable sleeve (9), and multiple sets of the rotating frames (7) are designed in a symmetrical structure on the outside of the movable sleeve (9).

5. The hot-melt sealing and positioning tooling for pipeline repair construction according to claim 1, characterized in that: The limiting component (4) includes a movable rod (14) slidably connected inside the fixed cylinder (2). The movable rod (14) is fixedly connected to the movable sleeve (9). A connecting ring (15) is fixedly connected to the outside of the movable rod (14). A fixed ring (16) is fixedly connected inside the fixed cylinder (2) and located outside the movable rod (14).

6. The hot-melt sealing and positioning tool for pipeline repair construction according to claim 5, characterized in that: The moving rod (14) and the fixed ring (16) are slidably connected. A compression spring (17) is sleeved between the fixed ring (16) and the connecting ring (15) and located outside the moving rod (14). The two ends of the compression spring (17) are fixedly connected to the fixed ring (16) and the connecting ring (15) respectively.

7. The hot-melt sealing and positioning tool for pipeline repair construction according to claim 6, characterized in that: The front end of the moving rod (14) is fixedly connected to a moving ring (18). The moving ring (18) has multiple sets of limiting grooves (19) at one end near the fixed ring (16). The fixed ring (16) has multiple sets of limiting balls (20) fixedly connected at one end near the moving ring (18). The fixed ring (16) is connected to the limiting grooves (19) through the limiting balls (20).

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