Die assembly for pipeline repairing equipment

By employing a combination of replaceable adjustable structure and heating structure in the pipeline repair equipment, the problem of low fusion efficiency in the repair of pipelines of different diameters is solved, and rapid heating and convenient installation of mold components are achieved, thereby improving repair efficiency.

CN223794891UActive Publication Date: 2026-01-13NANJING SUNAN ENVIRONMENTAL TECH CO LTD
View PDF 1 Cites 0 Cited by

Patent Information

Application Number
CN202520518616.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-24
Publication Date
2026-01-13
Estimated Expiration
2035-03-24

AI Technical Summary

Technical Problem

In existing technologies, different heating molds need to be replaced in the repair of pipes of different diameters, resulting in low fusion efficiency and inconvenience in fixing the upper and lower molds, which affects the repair efficiency.

Method used

It adopts a combination of replaceable and adjustable structure and heating structure, including heat-conducting half ring and heating coil that can be replaced according to the pipe diameter. Through the cooperation of heat-conducting plate and support plate, rapid heating and fixation are achieved. Combined with lateral limiting component and vertical fixing component, the mold component can be quickly installed and disassembled.

Benefits of technology

It enables rapid fusion repair of pipes of different diameters, improves repair efficiency, reduces waiting time, and simplifies the installation process of mold components.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN223794891U_ABST
    Figure CN223794891U_ABST
Patent Text Reader

Abstract

The utility model relates to the technical field of pipeline repair, and discloses a mold assembly for pipeline repair equipment, which comprises a pipeline repair mold, the pipeline repair mold comprises an upper mold box and a lower mold box, and a pipe body needing to be repaired is arranged between the upper mold box and the lower mold box. The bottom of the inner wall of the upper mold box and the top of the inner wall of the lower mold box are each provided with a heating structure used for heating the pipe body. According to the utility model, the heating structure and the replaceable adjusting structure are matched with each other, the heat-conducting semi-ring is clamped on the inner sides of the upper mold box and the lower mold box in a sliding manner, and then the propping rod pushes the supporting plate and the heat-conducting plate to work in the direction of the heat-conducting plate, so that the heat-conducting plate is clamped on the surface of the sliding block, and the heat-conducting plate is heated by the heating coil; the heat conduction plates conduct heat to the surfaces of the heat conduction semi-rings to heat the pipe body needing to be repaired between the heat conduction semi-rings so that the pipe body can be rapidly melted and repaired, and the heat conduction semi-rings can be replaced according to the diameter of the pipe body.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to the field of pipeline repair technology, and in particular to a mold assembly for pipeline repair equipment. Background Technology

[0002] Pipeline repair refers to the process of repairing and maintaining damaged, leaking, corroded, or otherwise damaged pipelines to restore their normal operating function. Traditional open-cut repair involves directly excavating the damaged section of the pipeline, replacing or repairing it, and then backfilling. This method is suitable for situations where pipeline damage is severe and other repair methods are difficult to implement, but it can significantly impact surface traffic and the surrounding environment, has high construction costs, and takes a long time to complete.

[0003] A search revealed Chinese Patent Publication No. CN202321305001.8, which discloses a mold for quickly repairing pipe ruptures. The mold includes a lower mold, a material box located at the rear center of the lower end face of the lower mold, a first solenoid valve located at the center of the inner wall of the material box, and second heaters located on both sides of the center of the inner wall of the lower mold. The output ends of the two second heaters are connected to second heating tubes. Multiple positioning holes are located on both sides of the center of the upper end face of the lower mold, and a slot is provided on one side of the upper end face of the lower mold containing the positioning holes. In this invention, the pipe is secured by the cooperation of the concave mold of the lower mold and the convex mold of the upper mold, through the cooperation of the multiple positioning holes and the slots and grooves, facilitating the fixing of the damaged pipe. The damaged pipe is positioned, and the first and second heaters heat both sides of the damaged pipe, fusing it to the damaged pipe, simplifying the process and avoiding significant time waste.

[0004] The existing technical solutions described above have the following drawbacks. Although the above technical solutions can heat the pipe and fuse it onto the damaged pipe, there are two problems. First, when fusing pipes of different diameters, it is inconvenient to change the heating die due to the different pipe diameters, which reduces the fusion efficiency in repairing pipes of different diameters. Second, the upper and lower dies are fixed by multiple positioning holes, which is inconvenient and makes it difficult for the upper die to be placed on the lower die for automatic fixation to speed up the pipe repair efficiency. Therefore, a mold assembly for pipe repair equipment is proposed to solve the above problems. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a mold assembly for pipeline repair equipment, which aims to improve the existing technology by allowing for the replacement of different heating dies to accelerate the fusion efficiency in pipeline repair and reduce the waiting time for pipeline fusion repair in the process of repairing pipelines of different diameters.

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

[0007] The system includes a pipe repair mold, which comprises an upper mold box and a lower mold box. The pipe to be repaired is disposed between the upper mold box and the lower mold box. Heating structures for heating the pipe are installed at the bottom of the inner wall of the upper mold box and the top of the inner wall of the lower mold box. The inner sides of the upper mold box and the lower mold box are slidably connected with replaceable and adjustable structures that can be replaced according to different pipe diameters.

[0008] The heating structure includes six heating coils connected inside the upper and lower mold boxes. A fixed plate is longitudinally connected inside both the upper and lower mold boxes. A heat-conducting plate is slidably connected inside the fixed plate. A support plate is connected to the outside of the heat-conducting plate. A retaining spring is connected to the side of the support plate closest to the fixed plate, and the side of the retaining spring away from the support plate contacts the surface of the fixed plate. The movement of the support plate relative to the heat-conducting plate is controlled by a control component on the outside of the support plate.

[0009] The replaceable adjustable structure includes a heat-conducting half-ring, which is located on the outside of the tube body. A sliding block is connected to the outside of the heat-conducting half-ring. The bottom of the upper mold box and the top of the lower mold box are both provided with sliding grooves for sliding engagement of the sliding block. The heat-conducting plate extends into the interior of the sliding groove and contacts the surface of the sliding block on the side near the heat-conducting half-ring so that the heat from the heating coil can quickly heat the heat-conducting half-ring.

[0010] Lateral limiting components are connected to both sides of the lower mold box, and vertical fixing components are connected to both sides of the upper mold box.

[0011] As a further description of the above technical solution:

[0012] The control component includes a clamping rod, and multiple clamping rods are threadedly connected to the surfaces of the upper mold box and the lower mold box respectively. The side of the clamping rod near the support plate contacts the support plate and clamps against the support plate. A rotating block is connected to the outside of the clamping rod.

[0013] As a further description of the above technical solution:

[0014] The lateral limiting assembly includes a side plate connected to both sides of the lower mold box, and a limiting rod is connected to the top of the side plate.

[0015] As a further description of the above technical solution:

[0016] The vertical fixing assembly includes a vertical support plate, which is connected to both sides of the upper mold box. A retaining plate is slidably connected to the top of the vertical support plate, and the retaining plate is slidably engaged with the surface of the limiting rod. A storage groove is provided on the top of the vertical support plate, and the retaining plate is slidably connected inside the storage groove. A stabilizing rod is threadedly connected to the outer side of the vertical support plate.

[0017] As a further description of the above technical solution:

[0018] The surface of the stabilizer is provided with a push spring. One side of the push spring contacts the inner wall of the storage slot, and the other side of the push spring contacts the outer side of the clamping plate. The clamping plate is slidably connected to the surface of the stabilizer. The inner side of the stabilizer extends into the interior of the storage slot and engages with the inner wall of the storage slot.

[0019] As a further description of the above technical solution:

[0020] A unified control plate is longitudinally connected to the outer side of the card plate, and the unified control plate is slidably connected to the top of the vertical support plate.

[0021] As a further description of the above technical solution:

[0022] The top of the lower mold box is connected to a limiting block, which is engaged with the bottom of the upper mold box.

[0023] This utility model has the following beneficial effects:

[0024] In this invention, through the cooperation of the heating structure and the replaceable adjustable structure, the heat-conducting semi-ring is slidably engaged inside the upper mold box and the lower mold box. Then, the clamping rod pushes the support plate and the heat-conducting plate in the direction of the heat-conducting plate, so that the heat-conducting plate is engaged on the surface of the sliding block. After the heating coil heats the heat-conducting plate, the heat-conducting plate conducts heat to the surface of the heat-conducting semi-ring, which heats the tube body that needs to be repaired between the heat-conducting semi-rings, so that it melts quickly and is repaired. Furthermore, the heat-conducting semi-ring can be replaced according to the diameter of the tube body.

[0025] In this invention, with the cooperation of the lateral limiting component and the vertical fixing component, the side plate and the vertical support plate are attached together, so that after the limiting rod passes through the vertical support plate, the locking plate pushed by the push spring is engaged with the surface of the limiting rod. The shape of the limiting rod allows the locking plate to be engaged in the notch on the surface of the limiting rod. During installation, simply attaching the side plate and the vertical support plate is enough to fix the locking plate on the surface of the limiting rod, thereby solving the problem of inconvenience in assembling the upper and lower mold boxes. Attached Figure Description

[0026] Figure 1 This is a three-dimensional schematic diagram of a mold assembly for a pipeline repair equipment proposed in this utility model;

[0027] Figure 2 This is an exploded three-dimensional structural diagram of the vertical fixing component and the upper mold box of a mold assembly for pipeline repair equipment proposed in this utility model.

[0028] Figure 3This is a three-dimensional cross-sectional structural diagram of a mold assembly for pipeline repair equipment proposed in this utility model;

[0029] Figure 4 This utility model Figure 3 An enlarged schematic diagram of the structure at point A in the middle.

[0030] Legend:

[0031] 101. Upper mold box; 102. Lower mold box; 103. Tube body; 21. Heating coil; 22. Fixing plate; 23. Heat-conducting plate; 24. Support plate; 25. Clamping spring; 31. Heat-conducting semi-ring; 32. Sliding block; 33. Sliding groove; 41. Clamping rod; 42. Rotating block; 51. Side plate; 52. Limiting rod; 61. Vertical support plate; 62. Clamping plate; 63. Storage groove; 64. Stabilizing rod; 7. Pushing spring; 8. Unified control plate; 9. Limiting block. Detailed Implementation

[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0033] Reference Figure 1-3 An embodiment of this utility model includes a pipe repair mold, which includes an upper mold box 101 and a lower mold box 102. A pipe body 103 to be repaired is disposed between the upper mold box 101 and the lower mold box 102. Heating structures for heating the pipe body 103 are installed at the bottom of the inner wall of the upper mold box 101 and the top of the inner wall of the lower mold box 102. The inner sides of the upper mold box 101 and the lower mold box 102 are slidably connected with replaceable adjustable structures that can be replaced according to different pipe diameters.

[0034] The heating structure includes six heating coils 21 connected inside the upper mold box 101 and the lower mold box 102. These six heating coils are arranged in a front, middle, and rear position inside the upper mold box 101 and the lower mold box 102 to quickly heat the heat-conducting plate 23. The temperature of the heating coils 21 is controlled by an external temperature controller. Both the upper mold box 101 and the lower mold box 102 have longitudinally connected fixing plates 22. The heat-conducting plate 23 is slidably connected inside the fixing plates 22. The heat-conducting plate 23, limited by the fixing plates 22, can be engaged with the surface of the sliding block 32 after being pushed by the support plate 24, thus engaging the sliding block 32 inside the upper mold box 101 and the lower mold box 102 for use. A support plate 24 is connected to the outer side of the heat-conducting plate 23. A clamping spring 25 is connected to the side of the support plate 24 near the fixed plate 22. The side of the clamping spring 25 away from the support plate 24 contacts the surface of the fixed plate 22. The clamping spring 25 acts as a counter-push member. When the clamping rod 41 is removed from the support plate 24, it elastically releases and pushes the support plate 24 and the heat-conducting plate 23 to move, so that the heat-conducting plate 23 can be removed from the slot on the surface of the sliding block 32. This allows the sliding block 32 to drive the heat-conducting half-ring 31 to move from the inside of the upper mold box 101 and the lower mold box 102 and be taken out to replace the heat-conducting half-ring 31 with a different diameter. The movement of the support plate 24 on the heat-conducting plate 23 is controlled by the control component on the outer side of the support plate 24.

[0035] The replaceable adjustable structure includes a heat-conducting half-ring 31, which is located on the outside of the tube body 103. A sliding block 32 is connected to the outside of the heat-conducting half-ring 31. The heat-conducting half-ring 31 can be selected with multiple diameters such as large, medium, and small according to the diameter of the tube body 103. This technical solution uses a medium-diameter heat-conducting half-ring 31. After receiving the heat from the heat-conducting plate 23 through the sliding block 32, the heat-conducting half-ring 31 heats up to heat the tube body 103 that needs to be repaired, so that the new tube body 103 is melted and bonded to the old tube body 103 to achieve the repair effect. The bottom of the upper mold box 101 and the top of the lower mold box 102 are both provided with sliding grooves 33 for sliding and engaging the sliding block 32. The side of the heat-conducting plate 23 near the heat-conducting half-ring 31 extends into the interior of the sliding groove 33 and contacts the surface of the sliding block 32 so that the heat from the heating coil 21 can quickly heat the heat-conducting half-ring 31.

[0036] Lateral limiting components are connected to both sides of the lower mold box 102, and a limiting block 9 is connected to the top of the lower mold box 102. The limiting block 9 is snapped into the bottom of the upper mold box 101, and vertical fixing components are connected to both sides of the upper mold box 101.

[0037] Reference Figure 2-4The lateral limiting assembly includes a side plate 51, which is connected to both sides of the lower mold box 102. A limiting rod 52 is connected to the top of the side plate 51. The side plate 51 is connected to the lower mold box 102. After the limiting rod 52 passes through the hole on the vertical support plate 61, it initially limits the upper mold box 101 and the lower mold box 102 to prevent them from moving left and right. The vertical fixing assembly includes a vertical support plate 61, which is connected to both sides of the upper mold box 101. A locking plate 6 is laterally slidably connected to the top of the vertical support plate 61. 2. The clamping plate 62 is slidably engaged with the surface of the stabilizing rod 64. A storage groove 63 is provided at the top of the vertical support plate 61. The clamping plate 62 is slidably connected to the inside of the storage groove 63. The stabilizing rod 64 is threadedly connected to the outside of the vertical support plate 61. A pushing spring 7 is provided on the surface of the stabilizing rod 64. One side of the pushing spring 7 contacts the inner wall of the storage groove 63, and the other side of the pushing spring 7 contacts the outside of the clamping plate 62. Under the limitation of the stabilizing rod 64, the pushing spring 7 stably pushes the clamping plate 62 to slide on the surface of the limiting rod 52, so that the bottom of the clamping plate 62 is in contact with the limiting rod 52. After the top of rod 52 contacts, the arc of the inner side of clamping plate 62 and the shape of the arc of the top of limiting rod 52 ensure that clamping plate 62 can only move downward on the surface of limiting rod 52 and cannot move upward actively. This fixes side plate 51 and vertical support plate 61 together, so that during the process of placing upper mold box 101 on top of lower mold box 102, upper mold box 101 and lower mold box 102 are automatically fixed. This achieves rapid fixing of upper mold box 101 and lower mold box 102 during assembly, so as to quickly install them onto pipe body 103 for repair work. Clamping plate 62 slides. The stabilizer 64 is connected to the surface of the stabilizer 64. The inner side of the stabilizer 64 extends into the interior of the storage groove 63 and engages with the inner wall of the storage groove 63. The outer side of the clamping plate 62 is longitudinally connected to the unified control plate 8. The unified control plate 8 is slidably connected to the top of the vertical support plate 61. The unified control plate 8 can actively pull the two clamping plates 62 so that the clamping plates 62 can be released from the surface of the limiting rod 52, thereby releasing the fixation between the side plate 51 and the vertical support plate 61, and releasing the fixation between the upper mold box 101 and the lower mold box 102, so as to facilitate the repair of the part of the tube body 103.

[0038] Reference Figure 2-4 The control component includes a clamping rod 41. Multiple clamping rods 41 are threadedly connected to the surfaces of the upper mold box 101 and the lower mold box 102, respectively. The side of the clamping rod 41 near the support plate 24 contacts the support plate 24 and clamps against the support plate 24. A rotating block 42 is connected to the outside of the clamping rod 41. After the rotating block 42 drives the clamping rod 41 to rotate, the clamping rod 41 can actively push the support plate 24, so that the heat-conducting plate 23 connected to the support plate 24 is pushed and locked inside the sliding block 32. Conversely, rotation releases the fixation between the heat-conducting plate 23 and the sliding block 32.

[0039] Working principle: During use, the heat-conducting semi-ring 31 is slidably locked in the sliding groove 33 between the upper mold box 101 and the lower mold box 102 via the sliding block 32. After the rotating block 42 pushes the clamping rod 41, the clamping rod 41 pushes the clamping spring 25 to press against the support plate 24, causing the support plate 24 to drive the heat-conducting plate 23 under the fixed plate 22 to be inserted into the slot on the surface of the sliding block 32, thus stably fixing the heat-conducting semi-ring 31 between the upper mold box 101 and the lower mold box 102. The heat-conducting semi-ring 31 can be removed by reversing the above steps according to the tube body. Different heat-conducting half-rings 31 with different diameters are used. After the heat-conducting half-rings 31 are installed, multiple heating coils 21 are activated by the temperature controller to heat the heat-conducting plate 23 first. The heat-conducting plate 23, the sliding block 32 and the heat-conducting half-rings 31 heat the surface of the tube body 103. The new tube body 103 covers the cracks on the surface of the old tube body 103 and repairs them. This achieves the effect of repairing tube bodies 103 with different diameters by replacing the concave mold with different diameters.

[0040] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A mold assembly for pipeline repair equipment, comprising a pipeline repair mold, characterized in that: The pipe repair mold includes an upper mold box (101) and a lower mold box (102). The pipe body (103) to be repaired is arranged between the upper mold box (101) and the lower mold box (102). Heating structures for heating the pipe body (103) are installed at the bottom of the inner wall of the upper mold box (101) and the top of the inner wall of the lower mold box (102). The inner sides of the upper mold box (101) and the lower mold box (102) are slidably connected with replaceable adjustable structures that can be replaced according to different pipe diameters. The heating structure includes heating coils (21) connected inside the upper mold box (101) and the lower mold box (102). There are six heating coils (21). The upper mold box (101) and the lower mold box (102) are both longitudinally connected to fixed plates (22). The fixed plates (22) are slidably connected to heat-conducting plates (23). The heat-conducting plates (23) are connected to the outside of the heat-conducting plates (23). The side of the support plate (24) close to the fixed plate (22) is connected to a retaining spring (25). The side of the retaining spring (25) away from the support plate (24) is in contact with the surface of the fixed plate (22). The outside of the support plate (24) is controlled by a control component to move the support plate (24) relative to the heat-conducting plates (23). The replaceable adjustable structure includes a heat-conducting half-ring (31), which is located on the outside of the tube body (103). A sliding block (32) is connected to the outside of the heat-conducting half-ring (31). The bottom of the upper mold box (101) and the top of the lower mold box (102) are both provided with sliding grooves (33) for sliding engagement of the sliding block (32). The heat-conducting plate (23) extends into the sliding groove (33) on the side close to the heat-conducting half-ring (31) and contacts the surface of the sliding block (32) so that the heat from the heating coil (21) can quickly heat the heat-conducting half-ring (31). Lateral limiting components are connected to both sides of the lower mold box (102), and vertical fixing components are connected to both sides of the upper mold box (101).

2. A mold assembly for pipeline repair equipment according to claim 1, characterized in that: The control component includes a clamping rod (41), and multiple clamping rods (41) are threadedly connected to the surfaces of the upper mold box (101) and the lower mold box (102). The side of the clamping rod (41) close to the support plate (24) contacts the support plate (24) and clamps the support plate (24). A rotating block (42) is connected to the outside of the clamping rod (41).

3. A mold assembly for pipeline repair equipment according to claim 2, characterized in that: The lateral limiting assembly includes a side plate (51) connected to both sides of the lower mold box (102), and a limiting rod (52) connected to the top of the side plate (51).

4. A mold assembly for pipeline repair equipment according to claim 3, characterized in that: The vertical fixing assembly includes a vertical support plate (61), which is connected to both sides of the upper mold box (101). A retaining plate (62) is slidably connected to the top of the vertical support plate (61), and the retaining plate (62) is slidably engaged with the surface of the limiting rod (52). A storage groove (63) is provided on the top of the vertical support plate (61), and the retaining plate (62) is slidably connected to the inside of the storage groove (63). A stabilizing rod (64) is threadedly connected to the outside of the vertical support plate (61).

5. A mold assembly for pipeline repair equipment according to claim 4, characterized in that: The surface of the stabilizer (64) is provided with a push spring (7). One side of the push spring (7) contacts the inner wall of the storage groove (63), and the other side of the push spring (7) contacts the outer side of the clamping plate (62). The clamping plate (62) is slidably connected to the surface of the stabilizer (64). The inner side of the stabilizer (64) extends into the interior of the storage groove (63) and engages with the inner wall of the storage groove (63).

6. A mold assembly for pipeline repair equipment according to claim 5, characterized in that: A unified control plate (8) is longitudinally connected to the outer side of the card plate (62), and the unified control plate (8) is slidably connected to the top of the vertical support plate (61).

7. A mold assembly for pipeline repair equipment according to claim 6, characterized in that: The top of the lower mold box (102) is connected to a limiting block (9), which is engaged with the bottom of the upper mold box (101).

Citation Information

Patent Citations

  • Die for rapidly repairing pipeline crevasse

    CN219755733U