Welding device capable of hiding welding seam
By using a combination of extended corrugated copper pipe and reflector in the welding device, the problem of hidden welds in transformer tanks being unobservable and unwelded has been solved, enabling visualized welding of hidden welds and reducing the darkness of the welding process.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- BAODING TIANWEI BAOBIAN ELECTRICAL
- Filing Date
- 2024-12-21
- Publication Date
- 2026-04-24
AI Technical Summary
Due to structural limitations, some hidden welds in the transformer tank cannot be directly observed by welding workers, and conventional gas shielded welding torches cannot reach the location of these hidden welds for welding operations.
Design a welding device for concealing weld seams. Use an extended corrugated copper tube as the barrel of the welding gun body, and equip it with a reflector and mounting components. By adjusting the angle and using the reflector to assist in observation, the hidden weld seams can be visualized for welding.
It enables effective welding of hidden welds, reduces the darkness of the weld, and solves the observation and operation difficulties caused by structural limitations.
Smart Images

Figure CN224157925U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of power transformer tank processing technology, and in particular to a welding device for concealing weld seams. Background Technology
[0002] During the manufacturing process of transformer oil tanks, welding work is required at multiple weld seams.
[0003] Due to structural limitations, some hidden welds in the transformer tank cannot be directly observed by welding workers, and conventional gas shielded welding torches cannot reach the location of the hidden welds for welding operations.
[0004] Therefore, considering that some welds in the transformer tank are structurally limited and cannot be directly observed by humans, and that conventional welding torches cannot reach the weld position for welding operations, a welding device that hides the weld can be designed. This device replaces the bent steel pipe in the traditional gas shielded welding torch with a corrugated copper pipe. The corrugated copper pipe can be freely adjusted in angle, allowing the welding torch to reach the welding position of the hidden weld. Additionally, a reflector is added to assist workers in observing the weld and performing their work. Utility Model Content
[0005] To overcome the problem that some hidden welds in transformer oil tanks are restricted by the structure, making it impossible for welding workers to directly observe these hidden welds, and that conventional gas shielded welding torches cannot reach the location of the hidden welds for welding operations.
[0006] The technical solution of this utility model is as follows: a welding device for concealing weld seams, comprising a welding gun body, an extended corrugated copper tube, a reflector, and a mounting assembly. The extended corrugated copper tube is disposed at one end of the welding gun body, the mounting assembly is disposed above the welding gun body, and the reflector is disposed inside the mounting assembly.
[0007] Preferably, by setting an extended corrugated copper tube as the barrel of the welding gun body, the angle of the extended corrugated copper tube can be adjusted according to the hidden weld seam, so that the welding gun body can reach the welding position of the hidden weld seam to perform welding work. The worker can hold a reflector to help observe the hidden weld seam. The reflector can be fixed above the welding gun body by setting an installation component, so that the reflector can be fixed when it is inconvenient for the worker to hold the reflector.
[0008] Preferably, three sets of grooves are provided on one side of the welding gun body, and the rubber pad is placed inside the grooves and fixedly connected to the welding gun body.
[0009] Preferably, the extended corrugated copper tube is fitted with a heat-insulating sleeve, which is slightly shorter than the extended corrugated copper tube.
[0010] Preferably, a distributor is provided at one end of the extended corrugated copper tube, and a nozzle is provided at the other end of the distributor.
[0011] Preferably, a mounting frame is fixedly installed around the reflector, and a metal handle is fixedly installed below the mounting frame.
[0012] Preferably, the mounting components include a mounting bracket, a notch, an insert, and elastic clips. The mounting bracket is fixedly mounted on top of the welding gun body, the insert is located inside the mounting bracket, and two sets of notches are provided on the top of the mounting bracket. Two sets of elastic clips are fixedly mounted on one side of the notch, and the elastic clips pass through the mounting bracket through the notch.
[0013] Preferably, the mounting assembly includes a universal flexible joint, a mounting block, a pre-drilled hole, and a magnet. The universal flexible joint is fixedly mounted on top of the insertion block, and the mounting block is fixedly mounted on one end of the universal flexible joint. The surface of the mounting block has a pre-drilled hole, and the magnet is located inside the pre-drilled hole. The magnet is fixedly connected to the mounting block, and the metal handle is located inside the pre-drilled hole. The metal handle is magnetically connected to the magnet.
[0014] The beneficial effects of this utility model are:
[0015] 1. This utility model allows welding workers to easily hold the reflector with a metal handle, and adjust the angle and position of the reflector by hand to facilitate observation of hidden welds. When it is inconvenient to hold the reflector by hand, the reflector can also be installed above the welding gun body through the mounting component to observe the hidden welds. The feature of freely adjustable angle through the extended corrugated copper tube allows the welding gun to be extended to the position of the hidden weld for welding, thereby achieving the welding of hidden welds and reducing the darkness of the weld. Attached Figure Description
[0016] Figure 1 The diagram shown is a first three-dimensional structural schematic of the welding device for concealing welds according to this utility model.
[0017] Figure 2 The diagram shown is a second three-dimensional structural schematic of the welding device for concealing weld seams according to this utility model.
[0018] Figure 3 The diagram shown is an exploded three-dimensional structural diagram of the welding device installation assembly for concealed weld seams according to this utility model.
[0019] Figure 4 The diagram shown is a three-dimensional cross-sectional view of the installation components of the welding device for concealed welds according to this utility model.
[0020] Explanation of reference numerals in the attached drawings: 1. Welding gun body; 101. Groove; 102. Rubber pad; 2. Extended corrugated copper tube; 201. Heat insulation sleeve; 202. Diverter; 203. Nozzle; 3. Reflector; 301. Mounting frame; 302. Metal handle; 401. Fixing bracket; 402. Notch; 403. Insert block; 404. Elastic clip; 405. Universal flexible joint rod; 406. Mounting block; 407. Reserved hole; 408. Magnet. Detailed Implementation
[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0022] Please see Figures 1-4 This utility model provides an embodiment of a welding device for concealing weld seams, comprising a welding gun body 1, an extended corrugated copper tube 2, a reflector 3, and a mounting assembly. The extended corrugated copper tube 2 is disposed at one end of the welding gun body 1, the mounting assembly is disposed above the welding gun body 1, and the reflector 3 is disposed inside the mounting assembly. By using the extended corrugated copper tube 2 as the barrel of the welding gun body 1, the angle of the extended corrugated copper tube 2 can be adjusted according to the concealed weld seam, allowing the welding gun body 1 to reach the welding position of the concealed weld seam for welding work. The worker can hold the reflector 3 to assist in observing the concealed weld seam. The mounting assembly can fix the reflector 3 above the welding gun body 1, and fix the reflector 3 when it is inconvenient for the worker to hold it.
[0023] Please see Figures 1-2 In this embodiment, three sets of grooves 101 are provided on one side of the welding gun body 1, and rubber pads 102 are disposed inside the grooves 101 and fixedly connected to the welding gun body 1. The grooves 101 facilitate the worker's grip on the welding gun body 1, and the rubber pads 102 increase the worker's grip comfort and increase friction, reducing the probability of slipping out of the hand. The extended corrugated copper tube 2 is surrounded by a heat-insulating rubber sleeve 201, which is slightly shorter than the extended corrugated copper tube 2. The heat-insulating rubber sleeve 201 protects the extended corrugated copper tube 2 and facilitates the worker's adjustment of the angle of the extended corrugated copper tube 2. A flow divider 202 is provided at one end of the extended corrugated copper tube 2, and a nozzle 203 is provided at one end of the flow divider 202. The nozzle 203 is installed by the flow divider 202, and welding is performed by the nozzle 203.
[0024] Please see Figures 3-4In this embodiment, a mounting frame 301 is fixedly installed around the reflector 3, and a metal handle 302 is fixedly installed below the mounting frame 301. The reflector 3 is installed by setting the mounting frame 301, and the metal handle 302 facilitates the operator's handholding of the reflector 3. The mounting assembly includes a fixing frame 401, a notch 402, an insert block 403, and an elastic clip 404. The fixing frame 401 is fixedly installed above the welding gun body 1. The insert block 403 is disposed inside the fixing frame 401. Two sets of notches 402 are provided on the top of the fixing frame 401. Two sets of elastic clips 404 are fixedly installed on one side of the notch 402. The elastic clips 404 pass through the fixing frame 401 through the notch 402. By setting the elastic clips 404 to cooperate with the notch 402, the fixing frame 401 and the insert block 403 can be engaged and connected, so that the insert block 403 can be quickly installed and removed. The mounting assembly includes a universal joint. The universal flexible joint 405, mounting block 406, pre-drilled hole 407, and magnet 408 are provided. The universal flexible joint 405 is fixedly installed above the insertion block 403, and the mounting block 406 is fixedly installed at one end of the universal flexible joint 405. The surface of the mounting block 406 has a pre-drilled hole 407, and the magnet 408 is located inside the pre-drilled hole 407. The magnet 408 is fixedly connected to the mounting block 406, and the metal handle 302 is located inside the pre-drilled hole 407. The metal handle 302 is magnetically connected to the magnet 408. By providing the pre-drilled hole 407, the metal handle 302 can be easily inserted into the mounting block 406, and the magnetic connection between the magnet 408 and the metal handle 302 can fix the reflector 3. When it is inconvenient to hold the reflector 3, it can be fixed above the welding gun body 1. By providing the universal flexible joint 405, the angle and position of the reflector 3 can be adjusted, making it convenient for workers to use the reflector 3 to observe hidden welds.
[0025] When working, the groove 101 allows the worker to hold the welding gun body 1 easily, and the heat insulation sleeve 201 allows for easy adjustment of the extended corrugated copper tube 2, thereby adjusting the angle and position of the nozzle 203 so that the nozzle 203 reaches the position of the hidden weld, making it convenient for the worker to perform welding work.
[0026] The metal handle 302 allows workers to easily hold the reflector 3, thereby using the reflector 3 to observe the location of the hidden weld and assist in the welding work.
[0027] When it is inconvenient to hold the reflector 3 by hand, the insert 403 can be inserted into the fixing frame 401, and the elastic clip 404 can be engaged with the notch 402 to fix the insert 403 inside the fixing frame 401. The metal handle 302 can be inserted into the mounting block 406 through the reserved hole 407, and the magnet 408 can be magnetically connected to the metal handle 302 to fix the reflector 3 above the welding gun body 1.
[0028] The position and angle of the reflector 3 fixed inside the mounting block 406 can be adjusted using the universal flexible joint rod 405, making it convenient for staff to observe the hidden weld through the reflector 3.
[0029] Through the above steps, the metal handle 302 allows welding workers to easily hold the reflector 3 and adjust its angle and position, facilitating observation of hidden welds. The extended corrugated copper tube 2 allows for free angle adjustment, enabling the welding torch to reach the hidden weld and perform welding, thus reducing the darkness of the weld. This solves the problem that some hidden welds in transformer tanks are structurally restricted, preventing welding workers from directly observing them, and that conventional gas shielded welding torches cannot reach the hidden weld locations for welding operations.
[0030] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.
Claims
1. A welding device for concealing weld seams, comprising a welding gun body (1); characterized in that: It also includes an extended corrugated copper tube (2), a reflector (3) and a mounting assembly. The extended corrugated copper tube (2) is located at one end of the welding gun body (1), the mounting assembly is located above the welding gun body (1), and the reflector (3) is located inside the mounting assembly. Three sets of grooves (101) are provided on one side of the welding gun body (1), and the rubber pad (102) is set inside the groove (101). The rubber pad (102) is fixedly connected to the welding gun body (1). The extended corrugated copper tube (2) is surrounded by a heat-insulating sleeve (201), which is slightly shorter than the extended corrugated copper tube (2).
2. The welding device for concealing welds according to claim 1, characterized in that: A distributor (202) is provided at one end of the extended corrugated copper tube (2), and a nozzle (203) is provided at the other end of the distributor (202).
3. The welding device for concealing welds according to claim 1, characterized in that: A mounting frame (301) is fixedly installed on the periphery of the reflector (3), and a metal handle (302) is fixedly installed below the mounting frame (301).
4. The welding device for concealing welds according to claim 1, characterized in that: The mounting components include a mounting bracket (401), a notch (402), a plug (403), and a spring clip (404). The mounting bracket (401) is fixedly mounted on the top of the welding gun body (1). The plug (403) is located inside the mounting bracket (401). Two sets of notches (402) are provided on the top of the mounting bracket (401). Two sets of spring clips (404) are fixedly mounted on one side of the notch (402). The spring clips (404) pass through the mounting bracket (401) through the notch (402).
5. The welding device for concealing welds according to claim 1, characterized in that: The mounting assembly includes a universal flexible joint (405), a mounting block (406), a pre-drilled hole (407), and a magnet (408). The universal flexible joint (405) is fixedly mounted on top of the insert block (403). The mounting block (406) is fixedly mounted on one end of the universal flexible joint (405). The surface of the mounting block (406) has a pre-drilled hole (407). The magnet (408) is located inside the pre-drilled hole (407) and is fixedly connected to the mounting block (406). The metal handle (302) is located inside the pre-drilled hole (407) and is magnetically connected to the magnet (408).