A wire-tightening auxiliary device for building construction
By using the mechanical design of the push plate handle and ratchet structure, the problems of time-consuming, labor-intensive, and easily damaged existing wire tightening devices are solved, achieving a labor-saving and efficient wire tightening effect.
Patent Information
- Application Number
- CN202522647647.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-15
- Publication Date
- 2026-11-06
- Estimated Expiration
- 2035-12-15
AI Technical Summary
Existing wire-tightening devices for construction have problems such as being time-consuming and labor-intensive to operate manually, and being prone to damage and unstable in construction environments due to the nature of motor-driven devices.
The push plate handle drives the connecting plate to move inside the housing. Through the cooperation of the ratchet structure and the return spring, the mechanical self-rotation is achieved, reducing the force required for rotation operation.
It improves the convenience and efficiency of wire binding, reduces energy consumption, avoids equipment damage in the construction environment, and ensures the quality of wire binding.
Smart Images
Figure CN224943473U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of building construction equipment technology, specifically a wire-tightening auxiliary device for building construction. Background Technology
[0002] Construction tying wire tightening aids are commonly used during rebar tying to help workers tighten the ties more efficiently and safely. Tying wire, as a rebar tying material, is used to fix the position of the rebars by binding them at the intersections, ensuring structural stability. Using the aid can improve work efficiency, reduce physical exertion, and ensure that the tying wire is tightened to the required degree.
[0003] In use, the wire binding tightening device tightens the wire binding by attaching a hook to the outside of the binding wire and rotating the hook. Existing tightening devices use manual rotation of the hook or a motor-driven hook rotation for fixing. Manual gripping is time-consuming and labor-intensive, while motor-driven operation involves energy loss. Furthermore, the equipment is prone to collisions or vibrations on construction sites, which can loosen the internal wiring of the motor drive device, making it unusable continuously. Therefore, we propose an auxiliary wire binding tightening device for construction. Utility Model Content
[0004] To address the shortcomings of existing wire-tightening auxiliary devices for building construction, this utility model provides a wire-tightening auxiliary device for building construction. It features a push plate handle that moves a connecting plate inside the housing, while the connecting plate rotates a rotating column, which in turn causes the connecting column to rotate on its own axis, reducing the need for rotation. Simultaneously, the return spring makes the device easier to use, thus solving the problems mentioned in the background art.
[0005] This utility model provides the following technical solution: a wire-tightening auxiliary device for building construction, comprising a mounting base, a first ratchet sleeve movably sleeved inside the mounting base, a first ratchet gear movably sleeved inside the first ratchet sleeve, a rotating column fixed to one side of the first ratchet gear, a connecting column fixed to the other side of the first ratchet sleeve, a second ratchet gear fixed to the outside of the connecting column, a second ratchet sleeve sleeved on the outside of the second ratchet gear, a shell threaded onto the outside of the mounting base, a connecting plate movably sleeved on the outside of the rotating column, a first helical gear installed inside the connecting plate, second helical gears installed on both sides of the connecting plate, a gear fixed to the outside of the second helical gear, and a rack installed on the side of the mounting base and on the side of the gear.
[0006] Preferably, the front end of the connecting column is equipped with a hook via a positioning pin, and the end of the hook is curved.
[0007] Preferably, the second ratchet sleeve is engaged inside the mounting base, and a sealing cap is bolted to the outside of the mounting base. Both the first and second ratchet sleeves are installed inside the mounting base.
[0008] Preferably, the first ratchet gear is sleeved inside the first ratchet sleeve, and ratchet teeth are installed inside the first ratchet sleeve and the first ratchet gear. The second ratchet gear is sleeved inside the second ratchet sleeve, and ratchet teeth are installed inside the second ratchet gear and the second ratchet sleeve. The ratchet teeth installed inside the first ratchet sleeve and the first ratchet gear are in the opposite direction to the ratchet teeth installed inside the second ratchet gear and the second ratchet sleeve.
[0009] Preferably, the rotating column is rhomboid in shape and is sleeved inside the first helical gear. The second helical gear meshes with the first helical gear, and the gear meshes with the rack.
[0010] Preferably, a push plate handle is fixed to the side of the connecting plate by a connecting rod, and a sliding groove is provided inside the side of the outer shell. The push plate handle is fitted onto the connecting rod installed on the side of the outer shell and is movably sleeved inside the sliding groove.
[0011] Preferably, a return spring is installed between the mounting base and the connecting plate, and the ends of the rotating column and the rack are engaged inside the housing.
[0012] Compared with existing wire-tightening devices used in construction, this invention has the following advantages: 1. This wire-tightening auxiliary device for building construction uses a push plate handle. By pressing the push plate handle, the handle moves outside the housing, causing the connecting plate to move inside the housing. The connecting plate drives the gear and rack to mesh, and simultaneously drives the second helical gear to mesh with the first helical gear. This ensures that the first helical gear remains rotating when moving downwards, providing power for the rotation of the connecting column. At the same time, releasing the push plate handle allows it to reset under the elastic action of the return spring, improving the convenience of tightening and achieving a labor-saving effect.
[0013] 2. The wire-tightening device used in this construction project uses a first ratchet gear fitted inside a first ratchet sleeve, and a second ratchet sleeve engaged inside a mounting base. This improves ease of assembly. When the rotating column rotates clockwise, the ratchet teeth installed between the first ratchet sleeve and the first ratchet gear engage, causing the rotating column to rotate synchronously with the connecting column. When the connecting plate rebounds and causes the rotating column to rotate counterclockwise, the ratchet teeth installed inside the second ratchet sleeve lock the second ratchet gear, while the first ratchet gear rotates inside the first ratchet sleeve. This means that when the rotating column rotates, it drives the connecting column to rotate in one direction, preventing the connecting column from rotating backwards. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the main structure of the present utility model; Figure 2 This utility model Figure 1 Schematic diagram of cross-section structure; Figure 3 This utility model Figure 1 A schematic diagram of the outer shell structure is missing; Figure 4 This is a schematic diagram of the disassembled state of the unidirectional rotation structure of this utility model; Figure 5 This utility model Figure 2 Enlarged structural diagram at point A in the middle.
[0015] In the diagram: 1. Mounting base; 2. First ratchet sleeve; 3. First ratchet gear; 4. Rotating column; 5. Connecting column; 6. Second ratchet gear; 7. Second ratchet sleeve; 8. Sealing cover; 9. Positioning pin; 10. Grip hook; 11. Housing; 12. Connecting plate; 13. First helical gear; 14. Second helical gear; 15. Gear; 16. Rack; 17. Return spring; 18. Push plate handle; 19. Slide groove. Detailed Implementation
[0016] 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.
[0017] Please see Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5A wire-tightening auxiliary device for construction includes a mounting base 1. A first ratchet sleeve 2 is movably fitted inside the mounting base 1. A first ratchet gear 3 is movably fitted inside the first ratchet sleeve 2. Under the interaction of the first ratchet sleeve 2 and the first ratchet gear 3, the first ratchet gear 3 can rotate clockwise simultaneously within the first ratchet sleeve 2. When a rotating post 4 rotates counterclockwise, the first ratchet sleeve 2 can stop rotating. A rotating post 4 is fixed to one side of the first ratchet gear 3, and a connecting post 5 is fixed to the other side of the first ratchet sleeve 2. A second ratchet gear 6 is fixed to the outside of the connecting post 5. Under the action of the second ratchet gear 6 and the second ratchet sleeve 7, the connecting post 5 can rotate clockwise, and counterclockwise rotation of the connecting post 5 is prevented. For example, a second ratchet sleeve 7 is sleeved on the outside of the second ratchet 6, a housing 11 is threaded on the outside of the mounting base 1, and a connecting plate 12 is movably sleeved on the outside of the rotating column 4. When the connecting plate 12 is pushed to move, the connecting plate 12 drives the gear 15 to mesh with the rack 16, and the gear 15 drives the second helical gear 14 to mesh with the first helical gear 13. That is, when the first helical gear 13 rotates, the first helical gear 13 drives the rotating column 4 to rotate synchronously. The first helical gear 13 is installed inside the connecting plate 12, the second helical gear 14 is installed on both sides of the connecting plate 12, the gear 15 is fixed on the outside of the second helical gear 14, and the rack 16 is installed on the side of the mounting base 1 and on the side of the gear 15.
[0018] Please see Figure 1 and Figure 2 A hook 10 is installed at the front end of the connecting post 5 via a positioning pin 9. The end of the hook 10 is bent. The hook 10 is installed at the front end of the connecting post 5. The positioning pin 9 is installed inside the hook 10 and the connecting post 5 to ensure the convenience of the hook 10 when its position is limited. When the control housing 11 rotates, the housing 11 drives the hook 10 to rotate. The hook 10 can assist in the tightening of the binding wire.
[0019] Please see Figure 1 and Figure 5 The second ratchet sleeve 7 is engaged inside the mounting base 1. A sealing cover 8 is bolted to the outside of the mounting base 1. Both the first ratchet sleeve 2 and the second ratchet sleeve 7 are installed inside the mounting base 1. The second ratchet sleeve 7 is engaged inside the mounting base 1. When the second ratchet sleeve 7 rotates, it drives the mounting base 1 to rotate synchronously. At the same time, a sealing cover 8 is installed at the front end of the mounting base 1. The sealing cover 8 limits the position of the second ratchet sleeve 7 inside the mounting base 1.
[0020] Please see Figure 4 and Figure 5The first ratchet 3 is fitted inside the first ratchet sleeve 2. Both the first ratchet sleeve 2 and the first ratchet 3 have ratchet teeth installed inside them. The second ratchet 6 is fitted inside the second ratchet sleeve 7. Both the second ratchet 6 and the second ratchet sleeve 7 have ratchet teeth installed inside them. The ratchet teeth installed inside the first ratchet sleeve 2 and the second ratchet 6 have opposite directions to those installed inside the second ratchet sleeve 7. The first ratchet 3 is fitted inside the first ratchet sleeve 2, and the second ratchet sleeve 7 is fitted inside the second ratchet 6. When the first ratchet 3 rotates clockwise, the first ratchet... 3 drives the first ratchet sleeve 2 to rotate, and the first ratchet sleeve 2 drives the second ratchet 6 and the connecting post 5 to rotate synchronously. That is, the rotating post 4 can drive the connecting post 5 to rotate synchronously clockwise. When the rotating post 4 rotates counterclockwise, the first ratchet 3 stops rotating inside the first ratchet sleeve 2, and the second ratchet sleeve 7 and the second ratchet 6 are mutually engaged and limited to ensure that the connecting post 5 stops rotating. That is, when the rotating post 4 rotates clockwise, it can drive the connecting post 5 to rotate synchronously. When the rotating post 4 rotates counterclockwise, the connecting post 5 remains stopped rotating, ensuring that the rotation direction of the connecting post 5 remains in the same direction.
[0021] Please see Figure 3 The rotating column 4 is rhomboid in shape and is fitted inside the first helical gear 13. The second helical gear 14 meshes with the first helical gear 13, and the gear 15 meshes with the rack 16. The rotating column 4 is rhomboid in shape outside, with the first helical gear 13 fitted outside the rotating column 4. That is, the position of the first helical gear 13 outside the rotating column 4 can be telescopically fitted, and when the first helical gear 13 rotates, the second helical gear 14 can drive the rotating column 4 to rotate synchronously.
[0022] Please see Figure 2 and Figure 3A push plate handle 18 is fixed to the side of the connecting plate 12 via a connecting rod. A groove 19 is provided inside the side of the outer casing 11. The push plate handle 18 is sleeved on the outside of the outer casing 11. The connecting rod installed on the side of the connecting plate 12 is movably sleeved inside the groove 19. The connecting plate 12 is installed inside the outer casing 11. When the push plate handle 18 moves up and down outside the outer casing 11, the push plate handle 18 drives the connecting plate 12 to move up and down inside the outer casing 11. At the same time, when the connecting plate 12 moves, it drives the gear 15 to mesh with the rack 16, and the gear 15 drives the second helical gear 1. 4. When the two sets of second helical gears 14 mesh with the first helical gear 13 simultaneously, the first helical gear 13 will be driven to rotate. The first helical gear 13 will drive the rotating column 4 to rotate, providing power for the rotation of the connecting column 5. When the push plate handle 18 is compressed downward, the connecting plate 12 will be controlled to return to the initial state under the elastic action of the return spring 17. The equipment adopts a purely mechanical structure drive, which reduces energy consumption. The push plate handle 18 can automatically rebound, which has a labor-saving effect. Pressing the push plate handle 18 ensures that the connecting column 5 rotates the corresponding number of times, ensuring the efficiency of wire tightening.
[0023] Please see Figure 3 A return spring 17 is installed between the mounting base 1 and the connecting plate 12. The ends of the rotating column 4 and the rack 16 are engaged inside the housing 11. By installing the return spring 17 between the mounting base 1 and the connecting plate 12, pressing the push plate handle 18 controls the connecting plate 12 to retract inside the mounting base 1. At the same time, under the elastic action of the return spring 17, the connecting plate 12 is controlled to return to the initial state, and the ends of the rotating column 4 and the rack 16 are engaged inside the housing 11, ensuring that when the housing 11 is installed outside the mounting base 1, the housing 11 limits the position of the rotating column 4 and the rack 16.
[0024] Working principle: In use, the grab hook 10 is installed at the front end of the connecting post 5, and the position of the grab hook 10 is limited by the positioning pin 9. At the same time, the binding wire is wrapped around the part to be bound, and the grab hook 10 is sleeved inside the binding wire. Simultaneously, the push plate handle 18 is pushed forward. The push plate handle 18 drives the connecting plate 12 to move inside the outer shell 11. The connecting plate 12 drives the gear 15 to mesh with the rack 16, driving the second helical gear 14 to rotate. The second helical gear 14 meshes with the first helical gear 13. That is, as the push plate handle 18 drives the connecting plate 12 to the front end, it drives the rotation. The rotation of column 4 causes the connecting column 5 to rotate, which in turn causes the hook 10 to perform a binding operation on the wire. At the same time, the push plate handle 18 is loosened. Under the elastic action of the return spring 17, the connecting plate 12 is controlled to return to its initial state inside the outer shell 11. During the rebound of the connecting plate 12, the position of the connecting column 5 is locked and limited by the action of the first ratchet sleeve 2, the first ratchet gear 3, the second ratchet gear 6, and the second ratchet sleeve 7. That is, the connecting column 5 stops rotating, preventing the connecting column 5 from rotating back. This improves the binding efficiency during the process of controlling the hook 10 to bind the wire.
[0025] 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 which is defined by the appended claims and their equivalents.
Claims
1. A wire-tightening auxiliary device for building construction, comprising a mounting base (1), wherein a first ratchet sleeve (2) is movably sleeved inside the mounting base (1), a first ratchet gear (3) is movably sleeved inside the first ratchet sleeve (2), and a rotating column (4) is fixed on one side of the first ratchet gear (3), characterized in that: A connecting post (5) is fixed on the other side of the first ratchet sleeve (2). A second ratchet gear (6) is fixed on the outside of the connecting post (5). A second ratchet sleeve (7) is sleeved on the outside of the second ratchet gear (6). A housing (11) is threaded on the outside of the mounting base (1). A connecting plate (12) is movably sleeved on the outside of the rotating post (4). A first helical gear (13) is installed inside the connecting plate (12). A second helical gear (14) is installed on both sides of the connecting plate (12). A gear (15) is fixed on the outside of the second helical gear (14). A rack (16) is installed on the side of the mounting base (1) and on the side of the gear (15).
2. The wire-tightening auxiliary device for building construction according to claim 1, characterized in that: The front end of the connecting column (5) is equipped with a hook (10) via a positioning pin (9), and the end of the hook (10) is curved.
3. The wire-tightening auxiliary device for building construction according to claim 1, characterized in that: The second ratchet sleeve (7) is snapped into the inside of the mounting base (1), and a sealing cover (8) is installed on the outside of the mounting base (1) by bolts. The first ratchet sleeve (2) and the second ratchet sleeve (7) are both installed inside the mounting base (1).
4. The wire-tightening auxiliary device for building construction according to claim 1, characterized in that: The first ratchet (3) is fitted inside the first ratchet sleeve (2), and ratchet teeth are installed inside the first ratchet sleeve (2) and the first ratchet (3). The second ratchet (6) is fitted inside the second ratchet sleeve (7), and ratchet teeth are installed inside the second ratchet (6) and the second ratchet sleeve (7). The ratchet teeth installed inside the first ratchet sleeve (2) and the first ratchet (3) are in the opposite direction to the ratchet teeth installed inside the second ratchet (6) and the second ratchet sleeve (7).
5. The wire-tightening auxiliary device for building construction according to claim 1, characterized in that: The rotating column (4) is rhomboid in shape and is sleeved inside the first helical gear (13). The second helical gear (14) meshes with the first helical gear (13), and the gear (15) meshes with the rack (16).
6. The wire-tightening auxiliary device for building construction according to claim 1, characterized in that: The side of the connecting plate (12) is fixed with a push plate handle (18) by a connecting rod. The inside of the side of the outer shell (11) is provided with a sliding groove (19). The push plate handle (18) is sleeved on the outside of the outer shell (11). The connecting rod installed on the side of the connecting plate (12) is movably sleeved inside the sliding groove (19).
7. The wire-tightening auxiliary device for building construction according to claim 1, characterized in that: A return spring (17) is installed between the mounting base (1) and the connecting plate (12), and the ends of the rotating column (4) and the rack (16) are engaged inside the outer casing (11).