A fixing device for a steel structure connecting plate

Abstract

The utility model discloses a kind of fixing devices for steel structure connecting plate, including connecting block, fixedly installed with fixed block in the connecting block and the both sides of connecting block are all provided with slot and the bottom of connecting block is fixedly installed with mounting block, steel structure connecting plate is equipped in two slots, the top and bottom of two steel structure connecting plates are all provided with clamping slot, the both sides of fixed block are all provided with mounting hole and two rotating lead screws are rotatably installed in fixed block, the one end of two rotating lead screws is all threadedly sleeved with connecting plate and the same linkage gear is fixedly sleeved between two rotating lead screws, the side of two connecting plates away from each other is all fixedly installed with two extruding blocks. The utility model is through the precise mechanical structure design, the efficient, stable fixation of steel structure connecting plate is realized, and necessary support is provided, the stability and safety of steel structure connecting plate when bearing load or external impact force are ensured.

Description

Technical Field

[0001] This utility model relates to the field of steel structure building technology, specifically to a fixing device for steel structure connecting plates. Background Technology

[0002] Steel structures, due to their high strength, good ductility, and plasticity, are widely used in modern architecture, bridges, industrial plants, and many other fields. Steel structure connection plates are key components connecting steel structural members, bearing the crucial responsibility of transferring loads and ensuring the structural integrity and stability. In actual construction, the fixing method of the steel structure connection plates is paramount, directly affecting the safety, reliability, and construction efficiency of the entire steel structure system.

[0003] While welded connections of steel structure connecting plates offer advantages such as good integrity and high connection strength, they also have some drawbacks. The high temperatures generated during welding can cause localized deformation of the connecting plates, affecting the structure's precision. Furthermore, welding quality demands a high level of skill from the operators, and differences in skill among welders can lead to inconsistent weld quality. Additionally, welded connections are difficult to disassemble, making repairs and replacements complex and costly if the connecting plates are damaged or need replacement.

[0004] In existing steel structure connecting plate fixing devices, most devices primarily focus on the fixed connection between the connecting plates, neglecting their supporting role. In practical use, especially when the steel structure connecting plates bear large loads or are subjected to external impact forces, the connecting plates are prone to deformation. For example, in the roof steel structure connections of some large industrial plants, without sufficient supporting structures, the connecting plates may bend or twist under wind loads or snow loads, thus affecting the stability of the entire roof structure.

[0005] Based on this, this solution proposes a fixing device for steel structure connecting plates. Utility Model Content

[0006] The purpose of this utility model is to provide a fixing device for steel structure connecting plates to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a fixing device for steel structure connecting plates, comprising a connecting block, a fixing block fixedly installed inside the connecting block, slots opened on both sides of the connecting block, and an installation block fixedly installed at the bottom of the connecting block, steel structure connecting plates provided in both slots, and slots opened at the top and bottom of both steel structure connecting plates, mounting holes opened on both sides of the fixing block, and two rotating screws rotatably installed inside the fixing block, a connecting plate threaded onto one end of each of the two rotating screws, and a common linkage gear fixedly sleeved between the two rotating screws, two pressing blocks fixedly installed on the mutually distant sides of the two connecting plates, a first sliding rod fixedly installed in each of the two mounting holes, two sliding sleeves slidably sleeved in each of the two first sliding rods, a locking block fixedly installed on any one of the sliding sleeves, and a ball bearing adapted to the pressing block rotatably installed at one end of any one of the sliding sleeves, a first locking bolt threadedly installed on the top of the connecting block, and a linkage rack meshing with the linkage gear rotatably installed at the bottom end of the first locking bolt.

[0008] Preferably, a lifting screw is rotatably mounted inside the mounting block, and second sliding rods are fixedly mounted on both sides of the mounting block. The same connecting rod is slidably sleeved on the two second sliding rods. Support rods are fixedly mounted on both ends of the connecting rod, and the connecting rod is threaded onto the lifting screw. A worm gear is fixedly sleeved on the lifting screw. A worm gear meshing with the worm gear is rotatably mounted inside the mounting block. A knob is fixedly sleeved on one end of the worm gear. U-shaped plates are fixedly mounted on the top ends of the two support rods. Second locking bolts are threaded onto both sides of the two U-shaped plates. A clamping plate is rotatably mounted on one end of any one of the second locking bolts.

[0009] By adopting the above technical solution, the cooperation between the lifting screw and worm gear mounted rotatably inside the mounting block, as well as the sliding design of the connecting rod on the second slide rod, enables the support rod and U-shaped plate to move smoothly up and down, thereby adapting to steel structure connecting plates of different thicknesses. By rotating the knob, users can easily adjust the height of the U-shaped plate, enhancing the flexibility and applicability of the device. At the same time, the design of the second locking bolt and clamping plate on the U-shaped plate ensures a stable clamping of the steel structure connecting plate, improving the safety and reliability of the connection.

[0010] Preferably, each of the two second slide rods is fitted with a support spring, one end of each support spring is fixed to the corresponding second slide rod, and the other end of each support spring is fixed to the connecting rod.

[0011] With the above technical solution, the support springs sleeved on the two second slide rods are fixed at one end to the second slide rod and at the other end to the connecting rod. This design not only provides a buffer for the sliding of the connecting rod, reducing the impact and vibration caused by adjusting the height, but also enhances the stability and durability of the device. The presence of the support springs makes the device more capable of coping with external loads and extends its service life.

[0012] Preferably, a crank handle is fixedly sleeved on the top of the first locking bolt, and the crank handle is provided with anti-slip texture.

[0013] By adopting the above technical solution, the crank handle fixed to the top of the first locking bolt, and the anti-slip texture set on it, greatly improve the convenience and safety of the user's operation; the anti-slip texture design allows the user to firmly hold the crank handle even in wet or greasy environments, avoiding accidents and injuries caused by slippage, while also improving the accuracy and efficiency of operation.

[0014] Preferably, the threads of the two rotating lead screws are arranged in opposite directions, a slide rail is fixedly installed inside the fixed block, and two sliders are slidably installed on the slide rail, with each slider being fixedly connected to a corresponding connecting plate.

[0015] By adopting the above technical solution, the thread directions of the two rotating lead screws are set to opposite directions, so that they can drive the two connecting plates to move closer or further apart when they rotate. This design not only simplifies the operation process, but also improves the accuracy of operation. At the same time, the setting of the slide rail and slider in the fixed block ensures the smoothness and stability of the connecting plate during the movement process, and avoids fixation failure caused by shaking or displacement.

[0016] Preferably, the same return spring is fixedly connected between two sliding sleeves located on the same side.

[0017] By adopting the above technical solution, the return spring facilitates the reset of the sliding sleeve.

[0018] Compared with the prior art, the beneficial effects of this utility model are:

[0019] I. This utility model uses a crank handle to drive the first locking bolt and the linkage rack to rotate. The linkage rack drives the linkage gear to rotate, and the linkage gear drives the two rotating screws to rotate synchronously. Since the threads of the two rotating screws are opposite, when the two rotating screws rotate, they will drive the two connecting plates to move closer or further apart. The connecting plates drive the pressing block to press the ball. The ball rolls in the sliding sleeve and pushes the sliding sleeve to slide on the first sliding rod. The sliding sleeve drives the locking block to engage or disengage from the slot on the steel structure connecting plate, realizing the quick fixing and disassembly of the steel structure connecting plate. The operation is simple and quick, improving construction efficiency.

[0020] II. This utility model uses a knob to rotate a worm gear, which in turn rotates a worm wheel. The worm wheel then rotates a lifting screw, which in turn rotates a connecting rod that slides on the second slide rod and compresses or releases the support spring. The connecting rod then moves the support rod and the U-shaped plate up and down to adjust the height of the U-shaped plate to accommodate steel structure connecting plates of different thicknesses. Finally, by rotating the second locking bolt, the clamping plate is pushed to clamp and fix the steel structure connecting plate, thus improving the applicability and stability of the device. Attached Figure Description

[0021] Figure 1 This is a perspective view of the present utility model;

[0022] Figure 2 This is a front view of the internal structure of this utility model;

[0023] Figure 3 This is an enlarged front view of the internal structure of the fixing block of this utility model;

[0024] Figure 4 This is a perspective view of the fixing block of this utility model.

[0025] In the diagram: 1. Connecting block; 2. Crank handle; 3. Steel structure connecting plate; 4. U-shaped plate; 5. Support rod; 6. Mounting block; 7. Knob; 8. Support spring; 9. Second slide rod; 10. Second locking bolt; 11. Clamping plate; 12. Worm gear; 13. Lifting screw; 14. Connecting rod; 15. Worm; 16. Fixing block; 17. Locking block; 18. Connecting plate; 19. First locking bolt; 20. Linkage rack; 21. Pressing block; 22. Sliding sleeve; 23. Ball bearing; 24. Linkage gear; 25. Rotating screw; 26. First slide rod; 27. Return spring. Detailed Implementation

[0026] 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.

[0027] Please see Figure 1-4This utility model provides a technical solution: a fixing device for steel structure connecting plates, including a connecting block 1, a fixing block 16 fixedly installed inside the connecting block 1, slots opened on both sides of the connecting block 1, and an installation block 6 fixedly installed at the bottom of the connecting block 1. Steel structure connecting plates 3 are provided in both slots, and slots are opened at the top and bottom of both steel structure connecting plates 3. Installation holes are opened on both sides of the fixing block 16, and two rotating screws 25 are rotatably installed inside the fixing block 16. A connecting plate 18 is threaded onto one end of each of the two rotating screws 25, and a common linkage gear 24 is fixedly sleeved between the two rotating screws 25. Two pressing blocks 21 are fixedly installed on the mutually distant sides of the two connecting plates 18, and a first sliding rod 26 is fixedly installed in each of the two installation holes. Two sliding sleeves 22 are slidably sleeved inside each of the two first sliding rods 26. A locking block 17 is fixedly installed on each sliding sleeve 22, and a ball bearing 23 adapted to the pressing block 21 is rotatably installed at one end of each sliding sleeve 22. A first locking bolt 19 is threaded on the top of the connecting block 1. A linkage rack 20 that meshes with the linkage gear 24 is rotatably installed at the bottom end of the first locking bolt 19. A crank handle 2 is fixedly sleeved on the top end of the first locking bolt 19. The crank handle 2 is provided with anti-slip texture. The threads of the two rotating screws 25 are set in opposite directions. A slide rail is fixedly installed inside the fixing block 16. Two sliders are slidably installed on the slide rail. The two sliders are fixedly connected to the corresponding connecting plates 18 respectively. The same return spring 27 is fixedly sleeved between the two sliding sleeves 22 on the same side.

[0028] In this embodiment, the crank handle 2 drives the first locking bolt 19 to move the linkage rack 20. The linkage rack 20 meshes with the linkage gear 24, causing the two screw rods 25 with opposite thread directions to rotate synchronously, driving the connecting plate 18 and the pressing block 21 to move. The pressing block 21 pushes the sliding sleeve 22 to slide along the first sliding rod 26 through the pressing ball 23, so that the locking block 17 is locked into the slot of the steel structure connecting plate 3 to achieve quick fixation. The return spring 27 ensures that the sliding sleeve 22 automatically resets, improving the efficiency of repeated use. The slide rail slider structure ensures the stability of the connecting plate 18 movement, and the anti-slip crank handle enhances the safety of operation.

[0029] Combination Figure 1-4As shown, in this embodiment, a lifting screw 13 is rotatably installed inside the mounting block 6, and second slide rods 9 are fixedly installed on both sides of the mounting block 6. The same connecting rod 14 is slidably sleeved on the two second slide rods 9. Support rods 5 are fixedly installed on both ends of the connecting rod 14, and the connecting rod 14 is threaded onto the lifting screw 13. A worm gear 12 is fixedly sleeved on the lifting screw 13. A worm 15 that meshes with the worm gear 12 is rotatably installed inside the mounting block 6. A knob 7 is fixedly sleeved on one end of the worm 15. A U-shaped plate 4 is fixedly installed on the top of each of the two support rods 5. Second locking bolts 10 are threadedly installed on both sides of each of the two U-shaped plates 4. A clamping plate 11 is rotatably installed on one end of any one of the second locking bolts 10. Support springs 8 are sleeved on each of the two second slide rods 9. One end of each support spring 8 is fixed on the corresponding second slide rod 9, and the other end of each support spring 8 is fixed on the connecting rod 14.

[0030] In this embodiment, rotating the knob 7 drives the worm gear 15 to rotate, which in turn drives the worm wheel 12 and the lifting screw 13 to rotate, causing the connecting rod 14 to slide up and down along the second slide bar 9, thereby adjusting the height of the support rod 5 and the U-shaped plate 4. The support spring 8 provides a buffering force to ensure the smooth movement of the connecting rod 14 and assists in resetting. The U-shaped plate 4 pushes the clamping plate 11 to clamp the steel structure connecting plate 3 through the second locking bolt 10. The rotating clamping plate design avoids damage to the workpiece surface. The worm wheel 12 and worm gear 15 mechanism has a self-locking characteristic, which can maintain the stability of the adjusted height.

[0031] Working principle of this utility model:

[0032] The steel structure connecting plate 3 is placed in the slots on both sides of the connecting block 1. These slots provide initial positioning for the steel structure connecting plate 3. The top and bottom of the steel structure connecting plate 3 are provided with slots for subsequent fixing of the locking blocks 17. By shaking the handle 2, the first locking bolt 19 rotates and drives the linkage rack 20 at its bottom end to move. The linkage rack 20 meshes with the linkage gear 24, thereby driving the two rotating screws 25 to rotate synchronously. Since the threads of the two rotating screws 25 are opposite, their rotation will cause the two connecting plates 18 to move in opposite directions. As the connecting plate 18 moves, the two pressing blocks 21 on the connecting plate 18 press the corresponding balls 23, which will drive the two sliding sleeves 22 on the same side to move towards each other, which will drive the two locking blocks 17 on the same side to move towards each other, so that the locking blocks 17 can enter the slots of the steel structure connecting plate 3, thereby fixing the steel structure connecting plate 3. The return spring 27 ensures that the sliding sleeves 22 and the locking blocks 17 can return to their initial positions after release.

[0033] Support and fixation of the U-shaped plate and clamping plate: By rotating the knob 7, the worm gear 15 rotates and meshes with the worm wheel 12, thereby driving the lifting screw 13 to rotate; the rotation of the lifting screw 13 causes the connecting rod 14 to slide up and down on the second slide rod 9, adjusting the height of the support rod 5; the support spring 8 provides additional support force for the connecting rod 14, ensuring its stability during the adjustment process; the clamping plate 11 connected to the U-shaped plate 4 at the top of the support rod 5 by the second locking bolt 10 can clamp and fix the steel structure connecting plate 3, providing additional support and stability.

[0034] In summary, this utility model, through precise mechanical structure design, achieves efficient and stable fixing of the steel structure connecting plate and provides necessary support, ensuring the stability and safety of the steel structure connecting plate when subjected to loads or external impact forces.

[0035] The contents not described in detail in this specification are prior art known to those skilled in the art. Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A fixing device for steel structure connecting plates, comprising a connecting block (1), characterized in that: A fixing block (16) is fixedly installed inside the connecting block (1), and slots are provided on both sides of the connecting block (1). An installation block (6) is fixedly installed at the bottom of the connecting block (1). A steel structure connecting plate (3) is provided in both slots. The top and bottom of the two steel structure connecting plates (3) are provided with slots. An installation hole is provided on both sides of the fixing block (16), and two rotating screws (25) are rotatably installed inside the fixing block (16). One end of each of the two rotating screws (25) is threaded with a connecting plate (18), and the same linkage gear (24) is fixedly sleeved between the two rotating screws (25). Two pressing blocks (21) are fixedly installed on the opposite sides of the connecting plate (18). A first sliding rod (26) is fixedly installed in each of the two mounting holes. Two sliding sleeves (22) are slidably sleeved in each of the two first sliding rods (26). A locking block (17) is fixedly installed on each sliding sleeve (22), and a ball bearing (23) that matches the pressing block (21) is rotatably installed at one end of each sliding sleeve (22). A first locking bolt (19) is threaded on the top of the connecting block (1), and a linkage rack (20) that meshes with the linkage gear (24) is rotatably installed at the bottom end of the first locking bolt (19).

2. The fixing device for steel structure connecting plates according to claim 1, characterized in that: A lifting screw (13) is rotatably installed inside the mounting block (6), and a second slide rod (9) is fixedly installed on both sides of the mounting block (6). The same connecting rod (14) is slidably sleeved on the two second slide rods (9). Support rods (5) are fixedly installed at both ends of the connecting rod (14), and the connecting rod (14) is threaded onto the lifting screw (13). A worm gear (12) is fixedly sleeved on the lifting screw (13). A worm (15) that meshes with the worm gear (12) is rotatably installed inside the mounting block (6). A knob (7) is fixedly sleeved on one end of the worm (15). A U-shaped plate (4) is fixedly installed at the top of both support rods (5). A second locking bolt (10) is threadedly installed on both sides of the two U-shaped plates (4). A clamping plate (11) is rotatably installed on one end of any one of the second locking bolts (10).

3. The fixing device for steel structure connecting plates according to claim 2, characterized in that: Each of the two second slide rods (9) is fitted with a support spring (8). One end of each support spring (8) is fixed to the corresponding second slide rod (9), and the other end of each support spring (8) is fixed to the connecting rod (14).

4. The fixing device for steel structure connecting plates according to claim 1, characterized in that: The top of the first locking bolt (19) is fixedly fitted with a crank handle (2), and the crank handle (2) is provided with anti-slip texture.

5. A fixing device for steel structure connecting plates according to claim 1, characterized in that: The threads of the two rotating lead screws (25) are set in opposite directions. A slide rail is fixedly installed inside the fixed block (16). Two sliders are slidably installed on the slide rail. The two sliders are fixedly connected to the corresponding connecting plates (18).

6. A fixing device for steel structure connecting plates according to claim 1, characterized in that: The same return spring (27) is fixedly connected between two sliding sleeves (22) located on the same side.

Images