Steel bar binding tool
By designing a rebar tying tool that includes a gear set and a rack, mechanical transmission tying is realized, which solves the problems of low efficiency and reliance on manual experience in traditional wire hook tying. This improves tying efficiency and quality, and ensures the stability and durability of reinforced concrete structures.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-07
- Publication Date
- 2026-04-07
AI Technical Summary
When using traditional wire tying hooks to bind reinforcing bars, workers need to repeatedly wrap and twist the wire, which is tedious, physically demanding, and the binding quality depends on the worker's experience and skill, affecting construction efficiency and quality.
Design a rebar tying tool that uses a gear set and rack structure to automatically tie the tying wire through mechanical transmission, reducing manual movements and improving efficiency and quality stability.
The mechanical transmission of gears and racks reduces physical exertion, improves binding efficiency, ensures consistent tightness of binding wires, enhances binding quality, and guarantees the load-bearing capacity and stability of reinforced concrete structures.
Smart Images

Figure CN224092998U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of rebar tying, and specifically relates to a rebar tying tool. Background Technology
[0002] Reinforcement bar tying is a crucial step in reinforced concrete structure construction. It involves binding longitudinal and transverse reinforcing bars together with tie wire according to design requirements to form a spatial framework. The quality of reinforcement bar tying directly affects the load-bearing capacity, stability, and durability of the reinforced concrete structure; therefore, the efficiency and quality of the reinforcement bar tying process are of paramount importance.
[0003] In traditional rebar tying construction, manual tying is mainly carried out using wire ties. As a simple manual tool, the wire ties work by manually wrapping the wire around the intersection of the rebars, and then using the hook part of the wire ties to tighten the wire, thus completing the tying.
[0004] When using wire ties, workers need to repeatedly wrap and twist the wire, which is tedious and physically demanding. Especially when a large number of ties are required, the construction efficiency is low, which seriously affects the progress of the project. Furthermore, the quality of wire ties largely depends on the experience and skill of the workers.
[0005] Therefore, we propose a rebar tying tool to solve the above problems. Utility Model Content
[0006] To address the issues that when using wire ties, workers need to repeatedly wrap and twist the wire, which is tedious, physically demanding, and the quality of the ties largely depends on the worker's experience and skill, this utility model provides a rebar tying tool.
[0007] The solution adopted by this utility model to solve its technical problem is: a rebar tying tool, including an outer shell, a rotating shaft, a gear set, a rack, a handle and a guide rod, wherein a groove is vertically opened on the right side wall of the outer shell, and a slider is provided in the groove;
[0008] The guide rod is vertically installed between the inner top and inner bottom of the outer casing. A sliding sleeve is fitted on the guide rod. The rear side of the rack is fixedly connected to the sliding sleeve, and its right side is fixedly connected to the inner end of the slider.
[0009] One end of the handle is fixedly connected to the outer end of the slider, and is used to drive the slider and rack to move up and down;
[0010] The gear set is installed inside the housing and meshes with the rack for transmission. The rotating shaft is rotatably installed at the bottom of the housing, with its top end connected to the gear set. The bottom end of the rotating shaft is equipped with a binding hook for tying the binding wire.
[0011] Preferably, a carrying handle is fixedly installed on the top of the outer casing.
[0012] Preferably, the bottom end of the outer casing has a slot, through which the bottom end of the rack protrudes.
[0013] Preferably, the gear set includes a large gear, a support shaft, and a small bevel gear fitted on the top of the rotating shaft. The large gear meshes with a rack and has a rotating shaft fitted inside it. A bearing is fitted on the other end of the rotating shaft and is mounted on the right side wall of the outer casing. A bearing seat is fitted on the support shaft and is fixedly installed on the inner bottom of the outer casing. A large bevel gear and a small gear are fitted on both ends of the support shaft, respectively. The small gear meshes with the large gear, and the large bevel gear meshes with the small bevel gear.
[0014] Preferably, the large gear and the small gear are arranged one above the other.
[0015] Compared with the prior art, the beneficial effects of this utility model are:
[0016] 1. This utility model transforms manual operation into mechanical motion through mechanical transmission structures such as gear sets and racks. Workers only need to operate the handle to drive the slider and rack to move upward. Under the transmission action of the gear set, the rotating shaft and binding wire hook are driven to rotate, which can easily complete the binding of the wire. Workers only need to operate the handle and do not need to perform complicated hand movements, which greatly reduces physical exertion. It is especially suitable for large-scale binding operations and improves the efficiency of rebar binding.
[0017] 2. This utility model, through the precise coordination of components such as gear sets and racks, can ensure consistent tightening of the binding wires, thereby improving the stability and reliability of the binding quality, reducing problems such as insecure binding caused by improper manual operation, and providing better protection for the load-bearing capacity, stability and durability of reinforced concrete structures. Attached Figure Description
[0018] Figure 1 This is a frontal cross-sectional view of the present invention.
[0019] Figure 2 This is a schematic diagram of the left-side cross-sectional structure of this utility model;
[0020] Figure 3 This is a front view structural diagram of the present utility model.
[0021] In the diagram: 1 Outer shell, 2 Rotating shaft, 3 Binding hook, 4 Handle ring, 51 Guide rod, 52 Sliding sleeve, 61 Handle, 62 Sliding block, 63 Sliding groove, 71 Rack, 72 Rotating shaft, 73 Large gear, 74 Support shaft, 75 Large bevel gear, 76 Small bevel gear, 77 Small gear, 78 Bearing seat. Detailed Implementation
[0022] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0023] Please see Figure 1-3 This utility model provides a technical solution for a rebar tying tool:
[0024] Example 1:
[0025] according to Figure 1-3 As shown, it includes an outer shell 1, a rotating shaft 2, a gear set, a rack 71, a handle 61, and a guide rod 51. A carrying ring 4 is fixedly installed on the top of the outer shell 1 to facilitate workers to use the carrying ring 4 to carry the device. A vertical groove 63 is provided on the right side wall of the outer shell 1, and a slider 62 is provided in the groove 63.
[0026] The guide rod 51 is vertically installed between the inner top and inner bottom of the outer casing 1. A sliding sleeve 52 is fitted on the guide rod 51. The rear side of the rack 71 is fixedly connected to the sliding sleeve 52, and its right side is fixedly connected to the inner end of the slider 62. The cooperation between the sliding sleeve 52 and the slider 62 ensures the stability of the rack 71 when it moves vertically up and down.
[0027] One end of the handle 61 is fixedly connected to the outer end of the slider 62, and is used to drive the slider 62 and the rack 71 to move up and down.
[0028] The gear set is installed inside the outer casing 1. The gear set includes a large gear 73, a support shaft 74, and a small bevel gear 76 mounted on the top of the rotating shaft 2. The large gear 73 meshes with the rack 71, and a rotating shaft 72 is mounted inside it. A bearing 2 is mounted on the other end of the rotating shaft 72. The bearing 2 is installed on the right side wall of the outer casing 1. When the rack 71 moves up and down, it meshes with the large gear 73, causing the large gear 73 to rotate.
[0029] A bearing housing 78 is mounted on the support shaft 74 and is fixedly installed at the inner bottom of the outer casing 1. A large bevel gear 75 and a small gear 77 are respectively mounted on both ends of the support shaft 74. The small gear 77 meshes with the large gear 73, and the large gear 73 and small gear 77 are arranged one above the other. The large bevel gear 75 meshes with the small bevel gear 76. A bearing 1 is mounted on the rotating shaft 2 and is installed at the bottom of the outer casing 1. A binding hook 3 for tying binding wires is installed at the bottom end of the rotating shaft 2. The worker only needs to operate the handle 61 to drive the slider 62 and rack 71 to move upwards. Under the transmission action, the drive shaft 2 and the binding hook 3 rotate, which can easily complete the binding of the wire. The worker only needs to operate the handle 61 and does not need to perform complicated hand movements, which greatly reduces physical exertion. It is especially suitable for large-scale binding operations, improves the efficiency of rebar binding, and through the precise cooperation of components such as gear set and rack 71, it can ensure that the tightness of the binding wire is consistent, thereby improving the stability and reliability of binding quality, reducing problems such as loose binding caused by improper manual operation, and providing better protection for the load-bearing capacity, stability and durability of reinforced concrete structures.
[0030] In practical use, this utility model of a rebar tying tool involves first holding the handle ring 4 with one hand, and then using the other hand to wrap the binding wire around the intersection of the rebar and connect the binding wire to the binding hook 3. Next, holding the handle 61 and pulling it upwards, the handle 61 drives the slider 62 and the rack 71 to move upwards. The rack 71 meshes with the large gear 73, the large gear 73 meshes with the small gear 77, and the large bevel gear 75 meshes with the small bevel gear 76, which in turn drives the rotating shaft 2 and the binding hook 3 to rotate. As the binding hook 3 rotates, the binding wire is gradually tightened, completing the rebar tying.
[0031] Example 2:
[0032] Based on Example 1, such as Figure 1 and Figure 2 As shown, a slot is provided at the bottom of the outer shell 1, and the bottom end of the rack 71 protrudes through the slot.
Claims
1. A rebar tying tool, comprising a housing, a rotating shaft, a gear set, a rack, a handle, and a guide rod, characterized in that: The right side wall of the outer casing is vertically provided with a sliding groove, and a slider is provided in the sliding groove; The guide rod is vertically installed between the inner top and inner bottom of the outer casing. A sliding sleeve is fitted on the guide rod. The rear side of the rack is fixedly connected to the sliding sleeve, and its right side is fixedly connected to the inner end of the slider. One end of the handle is fixedly connected to the outer end of the slider, and is used to drive the slider and rack to move up and down; The gear set is installed inside the housing and meshes with the rack for transmission. The rotating shaft is rotatably installed at the bottom of the housing, with its top end connected to the gear set. The bottom end of the rotating shaft is equipped with a binding hook for tying the binding wire.
2. The rebar tying tool according to claim 1, characterized in that: A carrying handle is fixedly installed on the top of the outer casing.
3. The rebar tying tool according to claim 1, characterized in that: The bottom of the outer shell has a slot, through which the bottom end of the rack protrudes.
4. The rebar tying tool according to claim 1 or 3, characterized in that: The gear set includes a large gear, a support shaft, and a small bevel gear fitted on the top of the rotating shaft. The large gear meshes with a rack and a rotating shaft is fitted inside it. A bearing is fitted on the other end of the rotating shaft and is mounted on the right side wall of the outer casing. A bearing seat is fitted on the support shaft and is fixedly installed on the inner bottom of the outer casing. A large bevel gear and a small gear are fitted on both ends of the support shaft, respectively. The small gear meshes with the large gear, and the large bevel gear meshes with the small bevel gear.
5. The rebar tying tool according to claim 4, characterized in that: The large gear and the small gear are arranged one above the other.