Pipeline sweat soldering auxiliary device

By designing an auxiliary device for pipe hot-melt welding, the pipe height and level can be adjusted using slide rods, screws, and handwheels. The pipe interface quality problem was solved through a detachable connecting ring structure, which improved welding quality and disassembly efficiency, thus achieving efficient pipe hot-melt welding.

CN223864358UActive Publication Date: 2026-02-03CHINA RAILWAY 19TH BUREAU GRP 3RD
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Patent Information

Application Number
CN202520340990.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-28
Publication Date
2026-02-03
Estimated Expiration
2035-02-28

AI Technical Summary

Technical Problem

In the installation of water and electricity systems in building construction, the lack of quality awareness among construction workers during the hot-melt construction of polyethylene and polypropylene overhead pipelines makes it difficult to guarantee the straightness and levelness of the pipeline joints, affecting the welding quality and sealing performance.

Method used

An auxiliary device for hot-melt welding of pipelines was designed, including an adjustment component and a connection component. Through the cooperation of a slide rod, a screw rod and a handwheel, the pipe height and level are kept consistent, and the detachable connecting ring structure improves disassembly efficiency and provides stability and flexibility.

Benefits of technology

It achieves stability and sealing in pipeline welding, improves welding quality and disassembly efficiency, reduces labor costs, and enhances the high-efficiency welding capability of multiple pipelines.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of welding devices, and discloses a pipeline hot melt welding auxiliary device which comprises an adjusting assembly used for auxiliary welding in hot melt welding, a pipeline body is arranged on one side of the adjusting assembly, and a connecting assembly used for disassembling and assembling the pipeline body is arranged on one side of the adjusting assembly. The outer side of the pipeline body is sleeved with a hanging ring in bolted connection. The top of the hanging ring is connected with a hanging rod fixed to the bottom of a ceiling. The adjusting assembly comprises two connecting rods, a limiting frame is fixed to the bottom of each connecting rod, and a sliding rod is inserted into the inner side of the limiting frame, so that it can be guaranteed that the height and the levelness of the two pipeline bodies are uniform during installation, and a hand wheel rotates to drive a threaded rod to be in threaded connection with the limiting frame; according to the pipeline connecting device, additional stability and support are provided for connection between the pipeline main bodies, the two pipeline main bodies can be close to each other and finally attached, convenience is provided for hot melting welding, the distance between the pipeline main bodies is adjusted by rotating the hand wheel, and the welding quality and the sealing performance are ensured.
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Description

Technical Field

[0001] This utility model relates to the field of welding equipment technology, specifically to an auxiliary device for pipeline hot melt welding. Background Technology

[0002] Hot-melt joining refers to a method of joining non-metals by heating them to their (liquid) melting point. After hot-melt joining, the joint must be cooled at room temperature to achieve the tensile stress of the original metal material. Hot-melt joining must not be quenched to prevent the joint from carbonizing and becoming brittle, thus losing the tensile stress parameters of the original metal material.

[0003] In existing building water and electricity installation projects, the construction of overhead polyethylene and polypropylene pipelines using hot-melt welding is hampered by a lack of quality awareness and responsibility among construction workers. Space constraints prevent the installation of large machinery, making it impossible to guarantee the straightness and levelness of the pipeline joints. Furthermore, workers are unable to exert force when inserting or removing the hot-melt welding equipment, resulting in pipeline joint construction quality problems. Therefore, an auxiliary device for pipeline hot-melt welding is proposed. Utility Model Content

[0004] The purpose of this invention is to provide an auxiliary device for pipe hot-melt welding to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a pipe hot melt welding auxiliary device, comprising an adjustment component for assisting welding in hot melt welding, wherein a pipe body is provided on one side of the adjustment component, and a connecting component for disassembling and assembling the pipe body is provided on the other side of the adjustment component;

[0006] The outer side of the main pipe body is fitted with a bolted lifting ring, and the top of the lifting ring is connected to a hanging rod fixed to the bottom of the ceiling;

[0007] The adjustment assembly includes two connecting rods, with a limit frame fixed to the bottom of each connecting rod and a sliding rod movably passing through one side of the limit frame.

[0008] The limiting frame is threadedly connected to a screw rod on its outer side, and a handwheel is fixed to one end of the screw rod;

[0009] The connecting assembly includes a first connecting ring and a fixing frame. A second connecting ring is hinged to one side of the first connecting ring. The inner side of the fixing frame is provided with a sliding groove and a limiting groove. A cover plate is fixed to one side of the first connecting ring.

[0010] Preferably, the screw surface is provided with two threaded segments, the threaded segments are in opposite directions, and limit blocks are fixed at both ends of the slide rod.

[0011] Preferably, the bottom of the cover plate is fixed with a support rod, and a locking groove is provided on one side of the support rod.

[0012] Preferably, the slide is slidably connected to the inner side of the slide groove, and a locking rod is fixed to one side of the slide.

[0013] Preferably, the inner wall of the slide groove is fixed with a sliding column that moves through one side of the slide plate, and the sliding column is cylindrical in shape.

[0014] Preferably, as described above, a spring is sleeved on the outer side of the sliding column, and the two sides of the spring are respectively connected to one side of the sliding plate and the sliding groove.

[0015] Preferably, the top of the connecting rod is fixed to the bottom of the second connecting ring, one side of the fixing bracket is fixed to the outside of the second connecting ring, and the inner sides of the first connecting ring and the second connecting ring are used to sleeve the outer side of the pipe body.

[0016] Compared with the prior art, the present invention, by adopting the above technical solution, has the following technical effects:

[0017] 1. By inserting the sliding rod into the inside of the limiting bracket, the height and level of the two pipe bodies can be ensured to be consistent during installation. The handwheel rotation drives the screw to connect with the limiting bracket by thread, which provides additional stability and support for the connection between the pipe bodies. The two pipe bodies can approach each other and eventually fit together, which facilitates hot melt welding. Rotating the handwheel adjusts the distance between the pipe bodies to ensure welding quality and sealing.

[0018] Second, by pulling the locking rod to one side, the sliding plate can be moved to slide inside the groove and the spring can be compressed. When the locking rod leaves the inside of the locking groove, simply pull the cover plate upward, and the first and second connecting rings can rotate through the hinge shaft, thus easily removing them from the outside of the pipe body. This improves disassembly efficiency, reduces disassembly time and labor costs. The convenient disassembly process allows the adjustment components and connecting components to be quickly removed from the current pipe body and used to assist in the hot melt welding of the next pipe body, enhancing the flexibility of the entire device and enabling multiple pipe bodies to be welded sequentially and efficiently. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a first-view structural diagram of the present invention;

[0021] Figure 2 This is a schematic diagram of the second-view structure of the present invention;

[0022] Figure 3 This is a schematic diagram of the third-view structure of this utility model;

[0023] Figure 4 This is a schematic diagram of the main cross-sectional structure of the fixing frame of this utility model;

[0024] Figure 5 This is a schematic cross-sectional view of the limiting groove of this utility model.

[0025] Explanation of reference numerals in the attached drawings: 1. Adjustment component; 11. Connecting rod; 12. Slide rod; 13. Handwheel; 14. Limiting bracket; 15. Limiting block; 16. Screw; 2. Lifting ring; 3. Lifting rod; 4. Pipe body; 5. Connecting component; 51. First connecting ring; 52. Fixing bracket; 53. Second connecting ring; 54. Support rod; 55. Slide plate; 56. Cover plate; 57. Slide groove; 58. Spring; 59. Locking rod; 510. Limiting groove; 511. Locking groove; 512. Slide column. Detailed Implementation

[0026] 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.

[0027] It should be noted that the structures, proportions, sizes, etc., shown in the accompanying drawings of this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed in the specification, and are not intended to limit the conditions under which this application can be implemented. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size should still fall within the scope of the technical content disclosed in this application, provided that they do not affect the effects and purposes that this application can produce.

[0028] Example

[0029] Please see Figure 1-5This utility model provides a technical solution: a pipe hot melt welding auxiliary device, including an adjustment component 1 for auxiliary welding in hot melt welding, a pipe body 4 is provided on one side of the adjustment component 1, and a connecting component 5 for disassembling and assembling the pipe body 4 is provided on one side of the adjustment component 1; a bolt-connected lifting ring 2 is sleeved on the outside of the pipe body 4. The welding auxiliary device of this embodiment is suitable for a pullable pipe body 4. A hanging rod 3 fixed to the bottom of the ceiling is connected to the top of the lifting ring 2, and the hanging rod 3 is connected to the ceiling by expansion bolts.

[0030] Adjustment component 1 includes two connecting rods 11. A limit frame 14 is fixed to the bottom of the connecting rod 11. A slide rod 12 is movably passed through one side of the limit frame 14. A screw 16 is threaded to the outside of the limit frame 14. A handwheel 13 is fixed to one end of the screw 16. Rotating the handwheel 13 causes the screw 16 to rotate. The screw 16 is threaded to the limit frame 14, so that the two pipe bodies 4 are close to each other. When one end of the pipe body 4 cannot move, one end of the screw 16 can be rotated to the limit frame 14, and the other threaded section can be threaded to the limit frame 14. At this time, it is convenient to perform hot melt welding assistance on the pipe body 4. The surface of the screw 16 has two threaded sections with opposite directions. Limit blocks 15 are fixed to both ends of the slide rod 12.

[0031] To facilitate the removal of the first connecting ring 51 and the second connecting ring 53, a connecting assembly 5 is provided. The connecting assembly 5 includes the first connecting ring 51 and the fixing frame 52. The second connecting ring 53 is hinged to one side of the first connecting ring 51. The fixing frame 52 has a sliding groove 57 and a limiting groove 510 respectively on its inner side. A cover plate 56 is fixed to one side of the first connecting ring 51. A support rod 54 is fixed to the bottom of the cover plate 56. A locking groove 511 is opened on one side of the support rod 54. A sliding plate 55 is slidably connected to the inner side of the sliding groove 57. A locking rod 59 is fixed to one side of the sliding plate 55. When the locking rod 59 is pulled to one side, the locking rod 59 causes the sliding plate 55 to slide inside the sliding groove 57. At the same time, the sliding plate 55 compresses the spring 58.

[0032] A sliding post 512 is fixed to the inner wall of the slide groove 57 and extends through one side of the slide plate 55. The sliding post 512 is cylindrical in shape. A spring 58 is sleeved on the outside of the sliding post 512. The two sides of the spring 58 are respectively connected to one side of the slide plate 55 and the slide groove 57. The top of the connecting rod 11 is fixed to the bottom of the second connecting ring 53. When the locking rod 59 leaves the inside of the locking groove 511, the cover plate 56 is pulled upward, so that the first connecting ring 51 rotates at the hinge axis of the second connecting ring 53. The first connecting ring 51 and the second connecting ring 53 on the outside of the pipe body 4 are removed. One side of the fixing bracket 52 is fixed to the outside of the second connecting ring 53. The inner sides of the first connecting ring 51 and the second connecting ring 53 are used to sleeve the outside of the pipe body 4. The width of the limiting groove 510 is greater than the width of the support rod 54.

[0033] Working principle: When hot-melt welding is required on the pipe body 4, first install the two pipe bodies 4 at the bottom of the ceiling using the lifting ring 2 and the lifting rod 3. At this time, the lifting ring 2 and the pipe body 4 are pre-connected, that is, the bolts of the lifting ring 2 are not tightened. Then, the two first connecting rings 51 and the second connecting ring 53 are sleeved on the outside of the pipe body 4, so that the support rod 54 is inserted into the inner side of the limiting groove 510.

[0034] The slide bar 12 is inserted into the inner side of the limit frame 14, so that the height of the two pipe bodies 4 is consistent with the horizontality. The handwheel 13 can be rotated, and the handwheel 13 drives the screw 16 to rotate. The screw 16 is threadedly connected to the limit frame 14, so that the two pipe bodies 4 are brought closer to each other. The two ends of the pipe bodies 4 are heated by the hot melt equipment. Then the hot melt equipment is removed, and the handwheel 13 is rotated again. The handwheel 13 drives the screw 16 to be threadedly connected to the limit frame 14, so that the two pipe bodies 4 are fitted together. Finally, the welding of the pipe bodies 4 is completed. Then the bolt on one side of the lifting ring 2 can be tightened as needed.

[0035] When the first connecting ring 51 and the second connecting ring 53 need to be disassembled after welding, simply pull the locking rod 59 to one side. The locking rod 59 drives the sliding plate 55 to slide inside the slide groove 57. At the same time, the sliding plate 55 compresses the spring 58. When the locking rod 59 leaves the inside of the locking groove 511, pull the cover plate 56 upward to make the first connecting ring 51 rotate at the hinge axis of the second connecting ring 53. At this time, the first connecting ring 51 and the second connecting ring 53 on the outside of the pipe body 4 can be easily removed, making it convenient to take out the adjustment component 1 and the connecting component 5 to assist in the hot melt welding of the next pipe body 4.

[0036] In summary, by inserting the slide bar 12 into the inner side of the limiting bracket 14, it can be ensured that the height and level of the two pipe bodies 4 are consistent during installation. The rotation of the handwheel 13 drives the screw 16 to be threadedly connected to the limiting bracket 14, which provides additional stability and support for the connection between the pipe bodies 4. The two pipe bodies 4 can approach each other and eventually fit together, which facilitates hot melt welding. Rotating the handwheel 13 adjusts the distance between the pipe bodies 4 to ensure welding quality and sealing.

[0037] By pulling the locking rod 59 to one side, the sliding plate 55 can slide inside the slide groove 57 and compress the spring 58. When the locking rod 59 leaves the inside of the locking groove 511, simply pull the cover plate 56 upwards, and the first connecting ring 51 and the second connecting ring 53 can rotate through the hinge shaft, thus easily removing them from the outside of the pipe body 4. This improves disassembly efficiency, reduces disassembly time and labor costs. The convenient disassembly process allows the adjustment assembly 1 and the connecting assembly 5 to be quickly removed from the current pipe body 4 and used for hot melt welding assistance of the next pipe body 4, enhancing the flexibility of the entire device and enabling multiple pipe bodies 4 to be welded sequentially and efficiently.

[0038] Those skilled in the art will understand that the features described in the various embodiments and / or claims of this utility model can be combined or combined in various ways, even if such combinations or combinations are not explicitly described in this utility model. In particular, the features described in the various embodiments and / or claims of this utility model can be combined or combined in various ways without departing from the spirit and teachings of this utility model. All such combinations and / or combinations fall within the scope of this utility model.

Claims

1. A pipe hot-melt welding auxiliary device, comprising an adjustment assembly (1) for assisting welding in hot-melt welding, characterized in that: The adjustment component (1) has a pipe body (4) on one side and a connecting component (5) for disassembling and assembling the pipe body (4) on the other side. The outer side of the main body of the pipe (4) is fitted with a bolt-connected lifting ring (2), and the top of the lifting ring (2) is connected to a hanging rod (3) fixed to the bottom of the ceiling; The adjustment component (1) includes two connecting rods (11), with a limit frame (14) fixed at the bottom of the connecting rod (11), and a slide rod (12) movably passing through one side of the limit frame (14); The limiting frame (14) is threadedly connected to a screw (16) on the outside, and a handwheel (13) is fixed at one end of the screw (16); The connecting assembly (5) includes a first connecting ring (51) and a fixing frame (52). A second connecting ring (53) is hinged to one side of the first connecting ring (51). A sliding groove (57) and a limiting groove (510) are respectively opened on the inner side of the fixing frame (52). A cover plate (56) is fixed to one side of the first connecting ring (51).

2. The auxiliary device for pipe hot-melt welding according to claim 1, characterized in that: The screw (16) has two threaded segments on its surface, the threaded segments are in opposite directions, and limit blocks (15) are fixed at both ends of the slide rod (12).

3. The auxiliary device for pipe hot-melt welding according to claim 1, characterized in that: A support rod (54) is fixed to the bottom of the cover plate (56), and a locking groove (511) is provided on one side of the support rod (54).

4. The auxiliary device for pipe hot-melt welding according to claim 3, characterized in that: The slide (57) is slidably connected to the inner side of the slide (57), and a locking rod (59) is fixed on one side of the slide (55).

5. The auxiliary device for pipe hot-melt welding according to claim 4, characterized in that: The inner wall of the groove (57) is fixed with a sliding column (512) that moves through one side of the slide plate (55), and the sliding column (512) is cylindrical.

6. The auxiliary device for pipe hot-melt welding according to claim 5, characterized in that: A spring (58) is sleeved on the outside of the slide column (512), and the two sides of the spring (58) are respectively connected to one side of the slide plate (55) and the slide groove (57).

7. The auxiliary device for pipe hot-melt welding according to claim 1, characterized in that: The top of the connecting rod (11) is fixed to the bottom of the second connecting ring (53), and one side of the fixing bracket (52) is fixed to the outside of the second connecting ring (53). The inner sides of the first connecting ring (51) and the second connecting ring (53) are used to connect to the outside of the pipe body (4).