Hook type anti-falling support
By using the limit hook of the hook-type anti-reverse bracket to clamp the channel steel during welding, the problem of channel steel offset during welding is solved, the welding stability and quality is improved, and additional welding support and grinding work is reduced. .
Patent Information
- Application Number
- CN202420925470.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-29
- Publication Date
- 2025-02-25
- Estimated Expiration
- 2034-04-29
AI Technical Summary
When welding large channel steel splicing lattice columns, the lack of support points makes the channel steel difficult to support, and additional anti-fall brackets must be used, resulting in unnecessary welding points damage to the base material. The welding points need to be polished after welding, wasting labor and auxiliary means. material.
A hook-type anti-reverse bracket is provided, which uses limit hooks to deflect and limit the channel steel. During welding, the lead screw is driven by a lifting motor to drive the limit hooks to lower the channel steel to ensure welding stability.
Through the clamping of the limit hook, the offset of the channel steel during the welding process is avoided, the stability and quality of the welding is improved, additional welding support and grinding work is reduced, and labor intensity is reduced.
Smart Images
Figure CN222525884U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of steel structures, in particular to a hook-type anti-falling bracket. Background Art
[0002] Large channel steel spliced lattice columns are difficult to support due to the lack of supporting points during welding. Two long anti-falling brackets must be welded on the components for support. Unnecessary welding points are generated at the supporting parts, damaging the parent material. After welding, the welding points must be ground down, wasting labor and auxiliary materials. Utility Model Content
[0003] In view of the deficiencies in the prior art, the utility model provides a hook-type anti-falling bracket, which can utilize the limiting hook to limit the deflection of the channel steel, thereby ensuring welding stability during welding and improving welding quality.
[0004] The utility model is realized through the following technical solutions:
[0005] A hook-type anti-fall bracket is provided, comprising a support frame supported on the ground and a limiting hook installed on one side of the support frame, the support frame comprising a counterweight base and a plurality of support columns vertically fixed on the counterweight base and arranged in a straight line at intervals for supporting channel steel; the limiting hook comprises a fixing rod vertically connected to the counterweight base on one side of the support column, a cavity is arranged in the fixing rod and a lead screw is vertically rotatably installed in the cavity, a lifting motor is installed in the cavity, a driving shaft of the lifting motor is transmission-connected to the lower end of the lead screw, a guide groove connected to the cavity is opened on one side of the fixing rod facing the support column along its length direction, a lifting block slidably matched with the guide groove is threadedly connected to the lead screw, one end of the lifting block extends out of the cavity through the guide groove and is connected to a ∏-shaped hook for clamping the limiting channel steel through a connecting rod.
[0006] Furthermore, the ∏-shaped hook includes a horizontal arm and two vertical arms connected to both ends of the horizontal arm, and a limit switch electrically connected to the lifting motor is installed on the bottom surface of the horizontal arm facing the channel steel.
[0007] The limit switch set on the bottom surface of the cross arm is used to detect the channel steel. When the limit switch contacts the channel steel, the switch is triggered to receive a signal, which is transmitted to the lifting motor. The lifting motor stops rotating. At this time, the cross arm of the limit hook contacts the top surface of the channel steel, and the vertical arm clamps the two side surfaces of the channel steel to limit the position.
[0008] Preferably, the two vertical arms are respectively provided with mounting grooves on the side surfaces facing the channel steel, and a buffer part is installed in the mounting groove, the buffer part includes a buffer wheel and a compression spring, the buffer wheel is rotatably mounted on the wheel frame, a limiting rod is connected to the wheel frame, both ends of the limiting rod extend to the inner walls facing the two sides of the mounting groove, and are slidably connected to the sliding grooves opened on the inner walls, and the wheel frame is fixedly connected to the side walls of the mounting groove by a compression spring.
[0009] Installation grooves are respectively opened on the inner sides of the vertical arms, and buffer wheels are installed in the installation grooves. Together with the compression springs, when the limit hook descends to limit the clamping of the channel steel, the buffer wheels can be used to clamp both sides of the channel steel, thereby improving the stability of the clamping limit.
[0010] Furthermore, the lower end of the fixed rod is rotatably connected to the counterweight base, a gear ring is provided on the outer peripheral fixed sleeve of the fixed rod, a rotating motor is installed on the counterweight base, and a driving gear meshing with the gear ring is installed on the output shaft of the rotating motor.
[0011] By setting a rotating motor, cooperating with a driving gear and a gear ring, the driving motor can be used to drive the fixing rod and the upper limit hook to rotate 90° from the upper part of the channel steel to avoid the channel steel, making it easier to remove the welded channel steel from the support column.
[0012] Furthermore, a battery holder is provided on the counterweight base, and a storage battery for supplying power to the lifting motor, the rotating motor and the limit switch is installed.
[0013] By setting a battery holder on the counterweight base, power is supplied to the lifting motor, rotating motor and limit switch without the need for additional power connection, thereby improving the convenience and flexibility of use.
[0014] Beneficial effects of the utility model:
[0015] The utility model supports the channel steel by means of a supporting column and utilizes a liftable limit hook. When the channel steel is welded, the limit hook is lowered to clamp and limit the channel steel, which can ensure that the channel steel does not deviate during welding and improve the stability of welding. After welding is completed, the lifting motor controls the limit hook to rise to release the clamping limit on the channel steel, and the rotating motor drives the fixed rod and the upper limit hook to rotate 90° to avoid the top of the channel steel, so as to facilitate the removal of the welded channel steel and re-loading operations.
[0016] The anti-reverse bracket provided by the utility model directly supports and limits the channel steel through the limiting hook and the supporting column. There is no need to weld additional support rods to support the channel steel to be welded, and thus there is no need to clean and grind the welding points, and the parent material is not damaged. The stability and efficiency of welding are improved, and the labor intensity is reduced. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 It is a cross-sectional view of the overall structure of the utility model.
[0018] Figure 2 for Figure 1 Enlarged schematic diagram at point A in the middle.
[0019] Figure 3 It is a top view schematic diagram of the installation slot in the utility model.
[0020] Figure 4It is a structural schematic diagram of the fixing rod in the utility model.
[0021] Figure 5 It is a structural schematic diagram of the limit hook in the utility model.
[0022] As shown in the figure:
[0023] 1. Counterweight base, 2. Battery, 3. Support column, 4. Rotating motor, 5. Driving gear, 6. Lifting motor, 7. Ring gear, 8. Cavity, 9. Fixed rod, 10. Screw, 11. Lifting block, 12. Connecting rod, 13. Limit switch, 14. Limit hook, 15. Channel steel, 16. Buffer wheel, 17. Mounting groove, 18. Wheel frame, 19. Limit rod, 20. Slide groove, 21. Compression spring, 22. Guide slide groove, 23. Limit hook, 24. Cross arm, 25. Vertical arm. DETAILED DESCRIPTION
[0024] In order to clearly illustrate the technical features of this solution, this solution is described below through a specific implementation method.
[0025] A hook-type anti-fall bracket includes a support frame supported on the ground and a limit hook installed on one side of the support frame. According to the use requirements, at least two limit hooks 23 can be installed on the counterweight base to limit and clamp the channel steels 15 at both ends respectively. The support frame includes a counterweight base 1 and a plurality of support columns 3 vertically fixed on the counterweight base 1 and arranged in a straight line at intervals for supporting the channel steel 15; the limiting hook 23 includes a fixed rod 9 vertically connected to the counterweight base 1 on one side of the support column 3, a cavity 8 is arranged in the fixed rod 9 and a lead screw 10 is installed in the cavity 8 for vertical rotation, a lifting motor 6 is installed in the cavity 8, and the driving shaft of the lifting motor 6 is transmission-connected to the lower end of the lead screw 10, a guide groove 22 connected to the cavity 8 is opened along the length direction of the fixed rod 9 on the side facing the support column 3, a lifting block 11 slidably matched with the guide groove 22 is threadedly connected to the lead screw 10, one end of the lifting block 11 extends out of the cavity 8 through the guide groove 22 and is connected to a ∏-shaped hook 23 for clamping the limiting channel steel 15 through a connecting rod 12.
[0026] The ∏-shaped hook 23 includes a horizontal arm 24 and two vertical arms 25 connected to the two ends of the horizontal arm 24. The horizontal arm 24 is provided with a limit switch 13 electrically connected to the lifting motor 6 on the bottom surface facing the channel steel 15. The two vertical arms 25 are respectively provided with mounting grooves 17 on the sides facing the channel steel 15, and a buffer part is installed in the mounting groove 17. The buffer part includes a buffer wheel 16 and a compression spring 21. The buffer wheel 16 is rotatably mounted on the wheel frame 18. The wheel frame 18 is connected with a limit rod 19. The two ends of the limit rod 19 extend to the inner walls facing the two sides of the mounting groove 17, and are slidably connected with the slide groove 20 provided on the inner wall. The wheel frame 18 is fixedly connected to the side wall of the mounting groove 17 by the compression spring 21.
[0027] The lower end of the fixed rod 9 is rotatably connected to the counterweight base 1. A gear ring 7 is fixedly sleeved on the outer periphery of the fixed rod 9. A rotating motor 4 is installed on the counterweight base 1. A driving gear 5 meshing with the gear ring 7 is installed on the output shaft of the rotating motor 4.
[0028] A battery holder is provided on the counterweight base 1 and is equipped with a storage battery for supplying power to the lifting motor 6 , the rotating motor 4 and the limit switch 13 .
[0029] The working process of this utility model:
[0030] The two end channel steels 15 to be welded are placed on the support columns 3 arranged in a straight line for support, so that the parts of the two end channel steels 15 to be welded are aligned, the rotating motor 4 is started, and the rotating motor 4 drives the driving gear 5 to rotate, and the driving gear 5 is engaged with the gear ring 7 to drive the fixing rod 9 to rotate 90°, so that the limit hook 23 at the upper end of the fixing rod 9 is rotated to the top of the channel steel 15. At this time, the lifting motor 6 is controlled to start, and the lifting motor 6 drives the screw 10 to rotate. Under the limiting guiding action of the guide slot 22, the lifting block 11 on the screw 10 drives the limit hook 23 on one side to descend and limit the two side surfaces of the channel steel 15. The buffer inside the vertical arm 25 of the limit hook 23 The wheel 16 is squeezed by the side wall of the channel steel 15, which applies pressure 21 to the compression spring 21. The compression spring 21 is compressed, and the buffer wheel 16 is pressed into the installation groove 17 and applies a clamping force to the channel steel 15. After the limit switch 13 on the bottom surface of the cross arm 24 contacts the top surface of the channel steel 15, the limit switch 13 triggers a signal to the lifting motor 6. The lifting motor 6 stops rotating after receiving the signal. At this time, the limit hook 23 completes the limit clamping of the channel steel 15, and then the channel steels 15 at both ends are welded. During welding, the channel steels 15 at both ends are clamped and limited by two limit hooks 23 respectively, so that their position does not shift on the support column 3, thereby ensuring the stability of welding and improving the welding accuracy.
[0031] After the welding is completed, the lifting motor 6 is started, driving the lead screw 10 to rotate in the opposite direction, and the lifting block 11 drives the limit hook 23 to move upward to release the clamping and limiting effect on the channel steel 15. After the limit hook 23 leaves the channel steel 15, the rotating motor 4 is started, and through the driving gear 5 and the gear ring 7, it drives the fixing rod 9 to rotate 90° back to the initial position, so that the limit hook 23 avoids the top of the channel steel 15, which is convenient for removing the welded channel steel 15 and placing the new channel steel 15 to be welded.
[0032] Of course, the above description is not limited to the above examples. The technical features not described in the present invention can be achieved by or by adopting the existing technology, which will not be repeated here. The above embodiments and drawings are only used to illustrate the technical scheme of the present invention and are not limitations of the present invention. The present invention is described in detail with reference to the preferred implementation methods. Ordinary technicians in this field should understand that the changes, modifications, additions or substitutions made by ordinary technicians in this technical field within the essential scope of the present invention do not deviate from the purpose of the present invention and should also fall within the scope of protection of the claims of the present invention.
Claims
1. A hook-type anti-fall bracket, characterized in that: The invention comprises a support frame supported on the ground and a limit hook installed on one side of the support frame, the support frame comprises a counterweight base and a plurality of support columns vertically fixed on the counterweight base and arranged in a straight line at intervals for supporting the channel steel; the limit hook comprises a fixed rod vertically connected to the counterweight base on one side of the support column, a cavity is arranged in the fixed rod and a lead screw is installed in the cavity for vertical rotation, a lifting motor is installed in the cavity, a driving shaft of the lifting motor is transmission-connected to the lower end of the lead screw, a guide groove connected to the cavity is opened on one side of the fixed rod facing the support column along its length direction, a lifting block slidably matched with the guide groove is threadedly connected to the lead screw, one end of the lifting block extends out of the cavity through the guide groove and is connected to a ∏-shaped hook for clamping the limit channel steel through a connecting rod.
2. The hook-type anti-fall bracket according to claim 1 is characterized in that: The ∏-shaped hook comprises a horizontal arm and two vertical arms connected at both ends of the horizontal arm, and a limit switch electrically connected to the lifting motor is installed on the bottom surface of the horizontal arm facing the channel steel.
3. The hook-type anti-fall bracket according to claim 2 is characterized in that: The two vertical arms are respectively provided with mounting grooves on the side surfaces facing the channel steel, and a buffer part is installed in the mounting groove, the buffer part includes a buffer wheel and a compression spring, the buffer wheel is rotatably installed on the wheel frame, a limit rod is connected to the wheel frame, two ends of the limit rod respectively extend to the inner walls facing the two sides of the mounting groove, and are slidably connected with the sliding grooves opened on the inner walls, and the wheel frame is fixedly connected to the side walls of the mounting groove by a compression spring.
4. The hook-type anti-fall bracket according to claim 1, characterized in that: The lower end of the fixed rod is rotatably connected to the counterweight base, a fixed sleeve on the outer periphery of the fixed rod is provided with a gear ring, a rotating motor is installed on the counterweight base, and a driving gear meshing with the gear ring is installed on the output shaft of the rotating motor.
5. The hook-type anti-fall bracket according to claim 4, characterized in that: A battery holder is arranged on the counterweight base, and a storage battery for supplying power to the lifting motor, the rotating motor and the limit switch is installed thereon.