Welding and clamping device for supporting legs of tower crane
By designing an adjustable tower crane outrigger welding clamp device, the problem of outrigger specification adaptability was solved by using threaded connection and snap-fit structure, realizing fast and stable outrigger fixing, improving production efficiency and reducing replacement costs.
Patent Information
- Application Number
- CN202520428664.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-12
- Publication Date
- 2026-02-17
- Estimated Expiration
- 2035-03-12
AI Technical Summary
The existing tower crane outrigger welding clamp device lacks an adjustment mechanism, making it unable to adapt to outriggers of different specifications, resulting in time-consuming and costly replacements and affecting production efficiency.
A welding clamping device was designed, comprising components such as a mounting base, a rotating disk, a placement plate, a slide groove, a bidirectional threaded rod, a slider, a clamping plate, a fixing ring, a screw, and a locking block. The device achieves adjustable clamping and fixing of legs of different specifications through threaded connection and locking structure.
It enables rapid and stable clamping and fixing of outriggers of different specifications, improving production efficiency and adaptability, and reducing replacement costs.
Smart Images

Figure CN223917087U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of welding clamp device technology, and in particular to a tower crane outrigger welding clamp device. Background Technology
[0002] Tower cranes, also known as tower hoists, are rotating cranes with their booms mounted on the upper part of a tall tower. Tower cranes have a large working space and are mainly used for the vertical and horizontal transport of materials and the installation of building components in building construction.
[0003] Currently, existing tower crane outrigger welding clamp devices lack adjustment mechanisms. When producing outriggers of different specifications, it is often necessary to replace the entire welding clamp device, which not only consumes a lot of time and costs, but also seriously affects production efficiency and cannot meet the production needs of small batches and multiple varieties. Utility Model Content
[0004] The purpose of this utility model is to solve the problem that existing outriggers lack adjustment mechanisms and cannot be used with outriggers of different specifications, and to propose a tower crane outrigger welding clamp device.
[0005] To achieve the above objectives, the present invention adopts the following technical solution:
[0006] A tower crane outrigger welding clamp device includes a mounting base and an outrigger body. A rotating disk is rotatably connected to the top of the mounting base, and a placement plate is fixedly connected to the top of the rotating disk. The top of the placement plate has a sliding groove, and a bidirectional threaded rod is rotatably inserted between the inner walls of the two ends of the sliding groove. Both ends of the bidirectional threaded rod are threaded with sliders, which slide within the sliding groove. A mounting block is fixedly connected to the top of the slider, and a clamping plate is fixedly connected to one side of the mounting block. The outrigger body is clamped between the two clamping plates. A fixing ring is fixedly connected to the top of the mounting block, and a screw is threaded into the fixing ring. A nut is threaded onto one end of the screw. Multiple slots are provided on one side of the fixing ring. A sliding ring is slidably connected to the top of the mounting block and rotates on the top of the mounting block. The sliding ring is sleeved on the outside of the screw. Multiple locking blocks are integrally formed on one side of the sliding ring, and the locking blocks engage with the slots. A connecting rod is fixedly connected to the outer wall of one side of the sliding ring, and a support plate is rotatably connected to the other end of the connecting rod. The support plate contacts one side of the outrigger body.
[0007] Furthermore, the bottom of the mounting base is fixedly connected to multiple support legs, and the bottom ends of the support legs are glued with anti-slip pads.
[0008] Furthermore, a storage box is fixedly connected to one side of the placement plate.
[0009] Furthermore, the top of the placement plate is fixedly connected with multiple limiting blocks, and the support leg body is placed between the multiple limiting blocks.
[0010] Furthermore, a handle is fixedly connected to one end of the bidirectional threaded rod, and an anti-slip sleeve is fitted onto the outer wall of the handle.
[0011] Furthermore, a heat insulation pad is adhered to one side of the support plate, and the heat insulation pad is in contact with one side of the support leg body.
[0012] Furthermore, a limit ring is fixedly connected to the other end of the screw.
[0013] The beneficial effects of this utility model are as follows:
[0014] 1. By turning the double-threaded rod, the slider moves within the groove, which in turn moves the mounting block, causing the two clamping plates to converge towards the center, thus clamping and fixing the support legs of different specifications in a convenient and quick manner.
[0015] 2. By moving the connecting rod, the support plate comes into contact with the outrigger body. Then, the screw is turned. Under the action of the screw and the fixed ring threaded connection, the screw moves, thereby pushing the slip ring to move. This causes the locking block to engage with the locking groove. Then, the nut is tightened to fix the slip ring, thereby fixing the support plate, and thus better fixing the outrigger body, improving the stability of the outrigger body. Attached Figure Description
[0016] Figure 1 This is a three-dimensional structural diagram of a tower crane outrigger welding clamp device proposed in this utility model.
[0017] Figure 2 This is a partial bottom view of the structure of a tower crane outrigger welding clamp device proposed in this utility model.
[0018] Figure 3 This is a partial three-dimensional structural diagram of a tower crane outrigger welding clamp device proposed in this utility model.
[0019] Figure 4 This is a partial exploded structural diagram of a tower crane leg welding clamp device proposed in this utility model.
[0020] In the diagram: 1. Mounting base; 2. Support leg; 3. Rotating disc; 4. Placement plate; 5. Storage box; 6. Limiting block; 7. Slide groove; 8. Two-way threaded rod; 9. Handle; 10. Slider; 11. Mounting block; 12. Clamping plate; 13. Fixing ring; 14. Slip ring; 15. Screw; 16. Limiting ring; 17. Nut; 18. Slot; 19. Locking block; 20. Connecting rod; 21. Support plate; 22. Heat insulation pad; 23. Support leg body. Detailed Implementation
[0021] 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.
[0022] Reference Figures 1-4 A tower crane outrigger welding clamp device includes a mounting base 1 and an outrigger body 23. A rotating disk 3 is rotatably connected to the top of the mounting base 1. A placement plate 4 is welded to the top of the rotating disk 3. A groove 7 is provided on the top of the placement plate 4. A bidirectional threaded rod 8 is rotatably inserted between the inner walls of the two ends of the groove 7. A handle 9 is welded to one end of the bidirectional threaded rod 8. A slider 10 is threadedly sleeved at both ends of the bidirectional threaded rod 8. The slider 10 slides in the groove 7. An installation block 11 is welded to the top of the slider 10. A clamping plate 12 is fixed to one side of the installation block 11 by bolts. The outrigger body 23 is clamped between the two clamping plates 12. Twisting the handle 9 drives the bidirectional threaded rod 8 to rotate, thereby causing the slider 10 to move in the groove 7, which in turn drives the installation block 11 to move. This causes the two clamping plates 12 to converge towards the middle, thereby clamping and fixing the outrigger body 23.
[0023] A retaining ring 13 is welded to the top of the mounting block 11. A screw 15 is threaded into the retaining ring 13. A limit ring 16 is welded to the other end of the screw 15. A nut 17 is threaded onto one end of the screw 15. Multiple slots 18 are provided on one side of the retaining ring 13. A sliding ring 14 is slidably connected to the top of the mounting block 11 and rotates on the top of the mounting block 11. The sliding ring 14 is fitted onto the outside of the screw 15. Multiple locking blocks 19 are integrally formed on one side of the sliding ring 14. The locking blocks 19 engage with the slots 18. A connecting rod 20 is welded to the outer wall of one side of the sliding ring 14. The other side of the connecting rod 20... The support plate 21 is rotatably connected to the end of the leg body 23. The support plate 21 contacts one side of the leg body 23. The connecting rod 20 is turned so that the slip ring 14 rotates on the top of the mounting block 11, thereby making the support plate 21 contact the leg body 23. Then the screw 15 is turned, and the screw 15 moves under the action of the threaded connection between the screw 15 and the fixing ring 13, thereby pushing the slip ring 14 to move, so that the locking block 19 engages with the locking groove 18. Then, the nut 17 is tightened to fix the slip ring 14, thereby fixing the support plate 21, and thus better fixing the leg body 23.
[0024] Multiple support legs 2 are welded to the bottom of the mounting base 1 to support the device. Anti-slip pads are glued to the bottom of the support legs 2 to prevent slippage. A storage box 5 is fixed to one side of the placement plate 4 by bolts to facilitate the storage of items. Multiple limiting blocks 6 are welded to the top of the placement plate 4. The support leg body 23 is placed between the multiple limiting blocks 6 to facilitate the positioning of the support leg body 23. The outer wall of the handle 9 is fitted with an anti-slip sleeve to facilitate the operation of the handle 9. A heat insulation pad 22 is glued to one side of the support plate 21. The heat insulation pad 22 contacts one side of the support leg body 23, thereby increasing the friction between the support plate 21 and the support leg body 23, improving the stability of the fixation and the heat insulation capacity.
[0025] The working principle of this embodiment is as follows: In use, firstly, the outrigger body 23 is placed between multiple limiting blocks 6. Then, the handle 9 is turned to drive the bidirectional threaded rod 8 to rotate, thereby causing the slider 10 to move in the slide groove 7, which in turn drives the mounting block 11 to move. This causes the two clamping plates 12 to converge towards the middle, thereby clamping and fixing the outrigger body 23. Then, the connecting rod 20 is turned to rotate the slip ring 14 on top of the mounting block 11, thereby causing the support plate 21 to contact the outrigger body 23. Then, the screw 15 is turned, and under the action of the screw 15 and the fixing ring 13 being threaded together, the screw 15 moves, thereby pushing the slip ring 14 to move, thereby causing the locking block 19 to engage with the locking groove 18. Then, the nut 17 is tightened to fix the slip ring 14, thereby fixing the support plate 21, and thus better fixing the outrigger body 23.
[0026] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. A tower crane outrigger welding fixture comprising a mounting base (1) and an outrigger body (23), characterized in that, The top of mounting seat (1) is rotatably connected with rotating disc (3), the top of rotating disc (3) is fixedly connected with placing plate (4), the top of placing plate (4) is equipped with sliding groove (7), the both ends inner wall of sliding groove (7) is rotatably inserted with two-way threaded rod (8), the both ends of two-way threaded rod (8) are threadedly provided with sliding block (10), sliding block (10) slides in sliding groove (7), the top of sliding block (10) is fixedly connected with mounting block (11), the side of mounting block (11) is fixedly connected with clamping plate (12), the leg body (23) is clamped between two clamping plates (12), the top of mounting block (11) is fixedly connected with fixed ring (13), the inner thread of fixed ring (13) is inserted with screw rod (15), one end of screw rod (15) is threadedly provided with nut (17), the side of fixed ring (13) is equipped with a plurality of clamping grooves (18), the top of mounting block (11) is slidably connected with sliding ring (14) and rotates on the top of mounting block (11), sliding ring (14) is sleeved on the outside of screw rod (15), the side of sliding ring (14) is integrally formed with a plurality of clamping blocks (19), clamping block (19) is clamped with clamping groove (18), the side of sliding ring (14) is fixedly connected with connecting rod (20), the other end of connecting rod (20) is rotatably connected with support plate (21), support plate (21) is in contact with the side of leg body (23).
2. A tower crane outrigger welding clamp apparatus as claimed in claim 1, wherein, The bottom of mounting seat (1) is fixedly connected with a plurality of supporting legs (2), and the bottom end of supporting leg (2) is bonded with a non-slip pad.
3. A tower crane outrigger welding clamp apparatus as claimed in claim 1, wherein, The side of placing plate (4) is fixedly connected with containing box (5).
4. A tower crane outrigger welding clamp apparatus as claimed in claim 1, wherein, The top of placing plate (4) is fixedly connected with a plurality of limiting blocks (6), and the leg body (23) is placed between the plurality of limiting blocks (6).
5. A tower crane outrigger welding clamp apparatus as claimed in claim 1, wherein, One end of two-way threaded rod (8) is fixedly connected with handle (9), and the outer wall of handle (9) is sleeved with a non-slip sleeve.
6. A tower crane outrigger welding clamp apparatus as claimed in claim 1, wherein, The side of support plate (21) is bonded with heat insulation pad (22), and the heat insulation pad (22) is in contact with the side of leg body (23).
7. A tower crane outrigger welding clamp apparatus as claimed in claim 1, wherein, The other end of screw rod (15) is fixedly connected with limiting ring (16).