Portable stainless steel pipe fitting welding device
By using a symmetrical clamping plate and connecting plate with a synchronous opening and closing design and a universal wheel braking mechanism, the coaxiality problem and portability problem in stainless steel pipe welding equipment are solved, achieving efficient welding and convenient movement.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SUZHOU SANYUAN FLUID TECH CO LTD
- Filing Date
- 2025-05-12
- Publication Date
- 2026-06-09
Smart Images

Figure CN224333823U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of pipe welding technology, specifically a portable stainless steel pipe welding device. Background Technology
[0002] Stainless steel pipe is a hollow, long, round steel material, mainly used in industrial pipelines for petroleum, chemical, medical, food, light industry, and machinery, as well as mechanical structural components.
[0003] For example, in the announcement number CN220547809U, a stainless steel pipe welding device is provided. The device includes a support platform, and support columns are symmetrically fixedly installed on both sides of the top of the support platform. A positioning cylinder is fixedly installed on the top of the support column. A placement sleeve is provided inside the positioning cylinder. The clamping plate, together with the placement sleeve, can fix the stainless steel pipe, so that the stainless steel pipe can be stably placed in the placement sleeve, and the stainless steel pipe can be prevented from moving during the welding process.
[0004] The aforementioned device uses a clamping plate inside the sleeve to fix the pipe fitting. However, the clamping plate moves to one side, which can cause pipe fittings of different diameters to be unable to maintain coaxiality with the sleeve. This can lead to eccentricity when rotating the pipe fitting, making it impossible to weld the joint. Furthermore, the aforementioned device is not convenient for portable movement. Therefore, we propose a portable stainless steel pipe fitting welding device to solve the problems mentioned above. Utility Model Content
[0005] The purpose of this utility model is to provide a portable stainless steel pipe welding device to solve the problem mentioned in the background art that the support plate moves to one side, which causes pipes of different diameters to be unable to be kept coaxial with the placement sleeve, resulting in eccentricity when rotating the pipe and thus making it impossible to weld the joint of the pipe.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a portable stainless steel pipe welding device, including a processing table;
[0007] Also includes:
[0008] A sleeve is installed at the top of the processing table, and two sets of sleeves are symmetrically arranged. A clamping plate is installed at the front end of the inner side of the sleeve, and two clamping plates are symmetrically installed on both sides of the front end of the inner side of the sleeve. A connecting plate is integrally formed on both sides of the clamping plate. A connecting frame is installed on the outer side of the sleeve, and two sets of connecting frames are symmetrically installed on the upper and lower sides of the front end of the outer side of the sleeve. The connecting frame is installed on the upper and lower sides of the sleeve by fixing blocks. A bidirectional screw is installed on one side between the two connecting frames. The two ends of the bidirectional screw are connected to the connecting frame by bearings. The bidirectional screw penetrates the interior of the sleeve and is threadedly connected to the threaded hole on the surface of the connecting plate on one side. A rotating handle is provided at one end of the bidirectional screw. A welding head is installed above the processing table.
[0009] Preferably, a slide rod is installed on the other side of the two connecting brackets. The slide rod passes through the inside of the sleeve and is slidably engaged with the round hole on the surface of the connecting plate on the other side.
[0010] Preferably, an adjustment handle is installed at one outer end of the sleeve.
[0011] Preferably, the upper end of the processing table is symmetrically provided with fixed frames on both sides, and the upper end of the fixed frame is equipped with a ring frame, and the sleeve is movably engaged inside the ring frame.
[0012] Preferably, the inner wall of the ring frame is integrally formed with a groove, and the outer wall of the sleeve is provided with a convex ring, which is slidably engaged inside the groove.
[0013] Preferably, a bracket is installed at the bottom of the processing table, a caster wheel is provided at the bottom of the bracket, a braking mechanism is installed on one side of the caster wheel, and a push handle is installed on the outer side of the processing table.
[0014] Preferably, a mounting frame is provided at the upper center of the processing table, and a cylinder is mounted on the upper end of the mounting frame, with the bottom of the cylinder connected to the welding head.
[0015] Compared with the prior art, the beneficial effects of this utility model are:
[0016] 1. By symmetrically installing clamping plates on both sides of the inside of the sleeve, and setting connecting plates at both ends of the clamping plates, the two connecting plates on one side are connected by a double-acting screw, while the connecting plates on the other side are connected by a sliding rod. Both the double-acting screw and the sliding rod are fixed between two connecting brackets on the outside of the sleeve. The double-acting screw is rotated by rotating the handle at one end of the double-acting screw, so that the two clamping plates on both sides can open and close synchronously. The synchronous opening and closing of the two clamping plates can keep the stainless steel fittings and the sleeve axis on the same horizontal line when clamping stainless steel fittings of different diameters, thus preventing the stainless steel fittings from being eccentric.
[0017] 2. By setting a bracket at the bottom of the processing table and installing casters at the bottom of the bracket, the casters with a braking mechanism can easily move the processing table horizontally. The braking mechanism can also limit and fix the processing table. At the same time, a push handle is installed on one side of the processing table, which allows the operator to easily move the processing table horizontally by pushing the handle, thereby improving portability. 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 pipe fitting clamping structure of this utility model;
[0020] Figure 3 This is an exploded view of the clamping structure of this utility model;
[0021] Figure 4 This is a side sectional view of the sleeve and annular frame of this utility model;
[0022] In the diagram: 1. Processing table; 2. Bracket; 3. Casters; 4. Push handle; 5. Mounting bracket; 6. Cylinder; 7. Welding head; 8. Ring frame; 9. Fixing bracket; 10. Sleeve; 11. Connecting bracket; 12. Rotating handle; 13. Double-acting screw; 14. Slide rod; 15. Clamping plate; 16. Connecting plate; 17. Fixing block; 18. Protruding ring; 19. Groove; 20. Adjusting handle. 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 of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0024] This utility model provides a portable stainless steel pipe welding device, which includes a processing table 1. The main problem this utility model solves is that when the holding plate moves to one side, pipes of different diameters cannot be kept coaxial with the placement sleeve, leading to eccentricity when rotating the pipe and thus preventing welding at the joint.
[0025] For the device provided by this utility model, please refer to Figure 1-4 The following is a detailed introduction.
[0026] A sleeve 10 is positioned on the upper end of the processing table 1, and two sets of sleeves 10 are symmetrically arranged. A clamping plate 15 is installed at the inner front end of the sleeve 10, and two clamping plates 15 are symmetrically installed on both sides of the inner front end of the sleeve 10. Connecting plates 16 are integrally formed on both sides of the clamping plates 15. A connecting frame 11 is provided on the outer side of the sleeve 10, and two sets of connecting frames 11 are symmetrically installed on the upper and lower sides of the outer front end of the sleeve 10. The connecting frames 11 are installed on the upper and lower sides of the sleeve 10 via fixing blocks 17. A bidirectional screw 13 is installed on one side between the two connecting frames 11. The two ends of the bidirectional screw 13 are connected to the connecting frame 11 via bearings. The bidirectional screw 13 penetrates the interior of the sleeve 10 and is threadedly connected to the threaded hole on the surface of one side of the connecting plate 16. A rotating handle 12 is provided at one end of the bidirectional screw 13. A welding head 7 is installed above the processing table 1. A mounting frame 5 is located in the middle of the upper end of the processing table 1. A cylinder 6 is installed on the upper end of the mounting frame 5. The bottom of the sleeve 10 is connected to the welding head 7. The welding head 7 is driven to rise and fall by the cylinder 6, so that the height of the welding head 7 can be adjusted according to the diameter of different stainless steel pipe fittings. An adjustment handle 20 is installed on one side of the outer side of the sleeve 10. The sleeve 10 can be rotated by adjusting the handle 20, so that the sleeve 10 can be rotated to perform circumferential welding on the welding joint of the pipe fitting during welding. A sliding rod 14 is installed on the other side of the two connecting frames 11. The sliding rod 14 passes through the inside of the sleeve 10 and is slidably engaged with the round hole on the surface of the connecting plate 16 on the other side, which is used to assist the opening and closing of the connecting frame 11. Fixed frames 9 are symmetrically arranged on both sides of the upper end of the processing table 1. A ring frame 8 is installed on the upper end of the fixed frame 9, and the sleeve 10 is movably engaged in the inside of the ring frame 8, which is used to assist the rotation of the sleeve 10. The inner wall of the ring frame 8 is integrally formed with a groove 19, and the outer wall of the sleeve 10 is provided with a protruding ring 18, which is slidably engaged in the inside of the groove 19.
[0027] Please see Figure 1 To further explain, a support 2 is installed at the bottom of the processing table 1, and a caster wheel 3 is provided at the bottom of the support 2. A brake mechanism is installed on one side of the caster wheel 3, and a push handle 4 is installed on the outer side of the processing table 1 to facilitate the movement of the processing table 1, thereby improving flexibility and portability.
[0028] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.
Claims
1. A portable stainless steel pipe welding device, including a processing table (1); Its features are: Also includes: A sleeve (10) is set at the upper end of the processing table (1), and two sets of sleeves (10) are symmetrically arranged. A clamping plate (15) is installed at the front end of the inner end of the sleeve (10), and two clamping plates (15) are symmetrically installed on both sides of the front end of the inner end of the sleeve (10). A connecting plate (16) is integrally formed on both sides of the clamping plate (15). A connecting frame (11) is set on the outer side of the sleeve (10), and two sets of connecting frames (11) are symmetrically installed on the upper and lower sides of the front end of the outer end of the sleeve (10). 11) The fixing block (17) is installed on the upper and lower sides of the sleeve (10). A bidirectional screw (13) is installed on one side between the two connecting frames (11). The two ends of the bidirectional screw (13) are connected to the connecting frame (11) through bearings. The bidirectional screw (13) passes through the inside of the sleeve (10) and is threadedly connected to the threaded hole on the surface of the connecting plate (16) on one side. A rotating handle (12) is provided at one end of the bidirectional screw (13). A welding head (7) is installed above the processing table (1).
2. The portable stainless steel pipe welding device according to claim 1, characterized in that: A slide rod (14) is installed on the other side of the two connecting brackets (11). The slide rod (14) passes through the inside of the sleeve (10) and is slidably engaged with the round hole on the surface of the connecting plate (16) on the other side.
3. The portable stainless steel pipe welding device according to claim 1, characterized in that: An adjustment handle (20) is installed on one side of the sleeve (10).
4. The portable stainless steel pipe welding device according to claim 1, characterized in that: The upper end of the processing table (1) is symmetrically provided with fixed frames (9), and the upper end of the fixed frame (9) is equipped with a ring frame (8), and the sleeve (10) is movably engaged inside the ring frame (8).
5. The portable stainless steel pipe welding device according to claim 4, characterized in that: The inner wall of the ring frame (8) is integrally formed with a groove (19), and the outer wall of the sleeve (10) is provided with a protruding ring (18), and the protruding ring (18) is slidably engaged inside the groove (19).
6. The portable stainless steel pipe welding device according to claim 1, characterized in that: The bottom of the processing table (1) is equipped with a bracket (2), the bottom of the bracket (2) is provided with casters (3), and a brake mechanism is installed on one side of the casters (3). A push handle (4) is installed on the outer side of the processing table (1).
7. The portable stainless steel pipe welding device according to claim 1, characterized in that: The upper middle part of the processing table (1) is provided with a mounting frame (5), and a cylinder (6) is installed on the upper end of the mounting frame (5), and the bottom of the cylinder (6) is connected to the welding head (7).
Citation Information
Patent Citations
Stainless steel pipe fitting welding device
CN220547809U