Improved welding gun for narrow space

By improving the adjustment and avoidance mechanisms of the welding torch, the problem of insufficient torch length in narrow spaces has been solved, enabling flexible and high-quality welding, and ensuring welding safety and material utilization.

CN223917050UActive Publication Date: 2026-02-17ZHONG TIE YI JU JI TUAN DI QI GONG CHENG YOU XIAN GONG SI +1
View PDF 0 Cites 2 Cited by

Patent Information

Application Number
CN202423311972.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-31
Publication Date
2026-02-17
Estimated Expiration
2034-12-31

AI Technical Summary

Technical Problem

When welding in confined spaces, the existing welding torches are too short, making operation inconvenient and angle adjustment difficult, which affects welding quality and safety. In addition, space constraints increase the complexity of operation.

Method used

An improved welding torch was designed, which includes an adjustment mechanism and an obstacle avoidance mechanism. The length of the welding torch is adjusted by a lead screw, a laser rangefinder is installed to measure the distance to obstacles in real time, and a miniature camera is used to monitor the welding process, thereby improving flexibility and accuracy.

Benefits of technology

It enables flexible welding in confined spaces, improves welding quality and safety, reduces welding errors and material waste, and extends equipment life.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN223917050U_ABST
    Figure CN223917050U_ABST
Patent Text Reader

Abstract

The utility model provides an improved welding gun for a narrow space, which relates to the technical field of welding guns and comprises an adjusting mechanism, a receding mechanism is arranged on one side of the adjusting mechanism, the adjusting mechanism comprises a gun tail, a side plate is arranged at one end of the gun tail, and one end of the gun tail is fixedly connected with the rear end face of the side plate. The U-shaped plate slides on the gun tail when the lead screw is rotated, so that the overall length of the welding gun is increased, then the handle is held by hand to operate the welding gun, it is ensured that a welding rod can reach the farthest welding point in a limited operation space so as to adapt to different space limitations, and the flexibility of welding operation is improved; when the welding gun is used, the connecting frame is shifted on the rotary knob, so that the gun barrel is rotated, an operator is allowed to use the welding gun to operate in any direction where construction is difficult, and the adjustable angle of the welding gun enables the operator to conduct welding in various directions in narrow or complex space.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to the field of welding torch technology, and in particular to an improved welding torch for use in confined spaces. Background Technology

[0002] A welding torch is a tool used for welding work, primarily to heat metals or other materials to their melting point to achieve a connection. It is commonly used in fields such as metal structure welding.

[0003] In existing technologies, steel bars are essential components in the construction process. However, after the steel bars are tied, they need to be welded to the waterstop steel plate using a welding torch. In special cases, the waterstop steel plate is located deep and has steel bars above it, which makes the overall length of the welding torch insufficient during the welding process. Due to space constraints, the operator may weld at an incorrect angle, which will affect the strength of the weld joint and the structural safety. At the same time, when adjusting the angle of the torch in a confined space, the welding torch needs to be moved to an open area for adjustment. The repeated movement of the welding torch between the confined space and the open area increases the complexity of organization and coordination. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings of existing technologies and provide an improved welding torch for use in confined spaces.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: an improved welding torch for narrow spaces, comprising: an adjustment mechanism, an avoidance mechanism provided on one side of the adjustment mechanism, the adjustment mechanism including a torch tail, a side plate provided at one end of the torch tail, the end of the torch tail being fixedly connected to the rear end face of the side plate, a U-plate provided at one side end of the side plate, the side end of the side plate being slidably connected to the inner wall of the U-plate, a lead screw provided at the middle end of the U-plate, the middle end of the U-plate being threadedly connected to the outer side of the lead screw, and one end of the lead screw being rotatably connected to the front end face of the side plate.

[0006] In a preferred embodiment, the avoidance mechanism includes a frame plate, a laser rangefinder is disposed on the inner side of the frame plate, the inner side of the frame plate is fixedly connected to the outer side of the laser rangefinder, and one end of the frame plate is fixedly connected to one side of the gun barrel.

[0007] In a preferred embodiment, a connecting frame is provided on the top side of the U-plate, the top side of the U-plate is fixedly connected to the bottom end of the connecting frame, an empty box is provided on the top side of the connecting frame, and the top side of the connecting frame is fixedly connected to the bottom side of the empty box.

[0008] In a preferred embodiment, a spring is provided on the inner surface of the empty box, and one end of the spring is fixedly connected to the inner surface of the empty box. An L-shaped rod is provided on the other end of the spring, and the other end of the spring is fixedly connected to one end of the L-shaped rod.

[0009] In a preferred embodiment, one end of the L-rod is slidably connected to the inner surface of the empty box, and the other end of the L-rod is provided with an arc-shaped plate, which is fixedly connected to the bottom side of the arc-shaped plate.

[0010] In a preferred embodiment, a knob is provided on one side of the arc-shaped plate, and one side of the arc-shaped plate is engaged with a protrusion on one side of the knob. The center end of the knob is rotatably connected to one end of the connecting rod.

[0011] In a preferred embodiment, a handle is provided on one side of the knob, and one side of the knob is fixedly connected to one end of the handle.

[0012] In a preferred embodiment, one end of the gun tail is fixedly connected to one end of the gun barrel, and a miniature camera is provided at the output end of the gun barrel, with the output end of the gun barrel fixedly connected to one side of the miniature camera.

[0013] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0014] 1. By rotating the screw, the U-plate slides on the tail of the torch, thereby increasing the overall length of the welding torch. Then, by holding the handle to operate the welding torch, it is ensured that the welding rod can reach the farthest welding point in a limited operating space, so as to adapt to different space constraints and improve the flexibility of welding operations. Secondly, a connecting frame is installed on the U-plate. By turning the connecting frame on the knob, the torch rod is rotated, allowing the operator to operate the welding torch in any difficult direction. The adjustable angle of the welding torch allows the operator to perform welding in various directions in narrow or complex spaces.

[0015] 2. A laser rangefinder is installed on the welding gun barrel. The laser rangefinder can measure the distance between the welding gun and surrounding obstacles in real time, helping the operator to accurately assess the surrounding environment during welding, avoid collisions and interference, and ensure the accuracy of welding. At the same time, it can rationally plan the operation path of the welding gun based on the distance measurement results before or during welding, and minimize welding errors caused by obstacles. Attached Figure Description

[0016] Figure 1 This utility model provides a structural schematic diagram of an improved welding torch for use in confined spaces.

[0017] Figure 2This utility model provides a schematic diagram of the disassembled structure of an adjustment mechanism assembly for an improved welding torch used in confined spaces.

[0018] Figure 3 This is a cross-sectional schematic diagram of the adjustment mechanism assembly of an improved welding torch for use in confined spaces, provided by this utility model.

[0019] Figure 4 An enlarged structural schematic diagram of the adjustment mechanism and avoidance mechanism components of an improved welding torch for use in narrow spaces, provided by this utility model.

[0020] Legend:

[0021] 1. Adjustment mechanism; 11. Barrel; 12. Butt; 13. Side plate; 14. U-plate; 15. Lead screw; 16. Connecting frame; 17. Empty box; 18. Spring; 19. L-bar; 110. Arc plate; 111. Knob; 112. Handle; 113. Miniature camera;

[0022] 2. Alignment mechanism; 21. Frame plate; 22. Laser rangefinder. Detailed Implementation

[0023] 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.

[0024] Example 1

[0025] like Figures 1-4As shown, this utility model provides a technical solution: an improved welding torch for narrow spaces, comprising: an adjustment mechanism 1, an avoidance mechanism 2 provided on one side of the adjustment mechanism 1, the adjustment mechanism 1 including a torch tail 12, a side plate 13 provided at one end of the torch tail 12, one end of the torch tail 12 being fixedly connected to the rear end face of the side plate 13, a U-plate 14 provided at one side end of the side plate 13, the side end of the side plate 13 being slidably connected to the inner wall of the U-plate 14, a lead screw 15 provided at the middle end of the U-plate 14, the middle end of the U-plate 14 being threadedly connected to the outer side of the lead screw 15, one end of the lead screw 15 being rotatably connected to the front end face of the side plate 13, a connecting frame 16 provided on the top side of the U-plate 14, the top side of the U-plate 14 being fixedly connected to the bottom end of the connecting frame 16, an empty box 17 provided on the top side of the connecting frame 16, the top side of the connecting frame 16 being fixedly connected to the bottom side of the empty box 17, and a spring piece 18 provided on the inner surface of the empty box 17. The inner surface of the empty box 17 is fixedly connected to one end of the spring 18. The other end of the spring 18 is provided with an L-rod 19, which is fixedly connected to one end of the L-rod 19. The outer side of one end of the L-rod 19 is slidably connected to the inner surface of the empty box 17. The other end of the L-rod 19 is provided with an arc-shaped plate 110, which is fixedly connected to the bottom side of the arc-shaped plate 110. A knob 111 is provided on one side of the arc-shaped plate 110, which is engaged with a protrusion on one side of the knob 111. The center end of the knob 111 is rotatably connected to one end of the connecting rod. A handle 112 is provided on one side of the knob 111, which is fixedly connected to one end of the handle 112. One end of the gun tail 12 is fixedly connected to one end of the gun barrel 11. A miniature camera 113 is provided at the output end of the gun barrel 11, which is fixedly connected to one side of the miniature camera 113.

[0026] In this embodiment, when using this modified welding torch for confined spaces, since the modified torch is mounted on steel bars filling a building, to ensure sufficient flexibility, the U-plate 14 is slid on the torch tail 12 by rotating the screw 15, thereby increasing the overall length of the welding torch. The handle 112 is then used to operate the torch, ensuring that the welding rod can reach the furthest welding point within a limited operating space, adapting to different space constraints and improving the flexibility of welding operations. Furthermore, a connecting bracket 16 is installed on the U-plate 14, and the connecting bracket 16 is rotated by the knob 111. The torch is turned so that the gun rod 11 rotates. When the desired angle is reached, the guard plate is engaged with the protrusion on the knob 111, so that the gun rod 11 remains stationary behind the knob 111. This allows the operator to operate the welding torch in any direction that is difficult to work in. The adjustable angle of the welding torch allows the operator to weld in various directions in narrow or complex spaces, avoiding the inconvenience caused by space limitations. At the same time, by precisely controlling the angle and positioning of the welding torch, the repeated adjustment and replacement of welding rods are reduced, thereby reducing the use of raw materials for welding rods and improving material utilization.

[0027] In addition, a miniature camera 113 is installed at the welding end of the gun barrel 11. If any missing welds, insufficient welds, or uneven welds are found during the welding process, the camera will directly output the image to the display screen on the gun tail 12. The operator can promptly identify problems such as missing welds, insufficient welds, or uneven welds, and make quick adjustments to ensure welding quality. This helps the operator to better position and perform meticulous welding work, especially in complex or narrow working environments.

[0028] Example 2

[0029] like Figures 1-4 As shown, the avoidance mechanism 2 includes a frame plate 21, a laser rangefinder 22 is provided on the inner side of the frame plate 21, the inner side of the frame plate 21 is fixedly connected to the outer side of the laser rangefinder 22, and one end of the frame plate 21 is fixedly connected to one side of the gun barrel 11.

[0030] In this embodiment, the welding area can be identified during the welding process. Therefore, a laser rangefinder 22 is installed on the welding gun 11. The laser rangefinder 22 can measure the distance between the welding gun and surrounding obstacles in real time, helping the operator to accurately assess the surrounding environment during welding, avoid collisions and interference, and ensure the accuracy of welding. At the same time, the operating path of the welding gun can be reasonably planned according to the distance measurement results before or during welding, minimizing welding errors caused by obstacles. By identifying obstacles in advance, the risk of the welding gun head colliding with other components is reduced, the possibility of welding rod breakage is reduced, and the service life of the equipment is improved.

[0031] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. An improved welding torch for use in tight spaces, characterized by, Include: Adjusting mechanism (1), one side of the adjusting mechanism (1) is provided with an avoiding mechanism (2), the adjusting mechanism (1) includes a gun tail (12), one end of the gun tail (12) is provided with a side plate (13), one end of the gun tail (12) is fixedly connected with the rear end face of the side plate (13), one end of the side plate (13) is provided with a U plate (14), one end of the side plate (13) is slidably connected with the inner wall of the U plate (14), the middle end of the U plate (14) is provided with a lead screw (15), the middle end of the U plate (14) is threadedly connected with the outer side of the lead screw (15), one end of the lead screw (15) is rotatably connected with the front end face of the side plate (13).

2. The improved welding torch for narrow space as claimed in claim 1, wherein: The avoiding mechanism (2) includes a frame plate (21), the inner side of the frame plate (21) is provided with a laser range finder (22), the inner side of the frame plate (21) is fixedly connected with the outer side of the laser range finder (22), one end of the frame plate (21) is fixedly connected with one side of the gun barrel (11).

3. The improved welding torch for narrow space as claimed in claim 1 wherein: The top side of the U plate (14) is provided with a connecting frame (16), the top side of the U plate (14) is fixedly connected with the bottom end of the connecting frame (16), the top side of the connecting frame (16) is provided with an empty box (17), the top side of the connecting frame (16) is fixedly connected with the bottom side of the empty box (17).

4. The improved welding torch for narrow space as claimed in claim 3 wherein: The inner surface of the empty box (17) is provided with a spring piece (18), the inner surface of the empty box (17) is fixedly connected with one end of the spring piece (18), the other end of the spring piece (18) is provided with an L rod (19), the other end of the spring piece (18) is fixedly connected with one end of the L rod (19).

5. The improved welding torch for narrow space as claimed in claim 4, wherein: The outer side of one end of the L rod (19) is slidably connected with the inner surface of the empty box (17), the other end of the L rod (19) is provided with an arc plate (110), the other end of the L rod (19) is fixedly connected with the bottom side of the arc plate (110).

6. The improved welding torch for narrow space as claimed in claim 5 wherein: One side of the arc plate (110) is provided with a knob (111), one side of the arc plate (110) is clamped with the protrusion of one end of the side surface of the knob (111), the center end of the knob (111) is rotatably connected with one end of the connecting rod.

7. The improved welding torch for narrow space as claimed in claim 6 wherein: One side of the knob (111) is provided with a handle (112), one side of the knob (111) is fixedly connected with one end of the handle (112).

8. The improved welding torch for narrow space as claimed in claim 1 wherein: One end of the gun tail (12) is fixedly connected with one end of the gun barrel (11), the output end of the gun barrel (11) is provided with a miniature camera (113), the output end of the gun barrel (11) is fixedly connected with one side of the miniature camera (113).

Citation Information

Cited By

  • Automatic welding gun capable of adapting to narrow position

    CN121733117A

  • An automated welding torch adaptable to confined spaces

    CN121733117B