Manual wire binding tool for binding reinforcing steel bars

By introducing a safety chain and nut structure into the rebar tying tool, the problems of laborious rebar tying and safety hazards are solved, and a labor-saving and safe tying operation is achieved.

CN223974891UActive Publication Date: 2026-03-06TIANJIN SURVEY & DESIGN INST FOR WATER TRANSPORT ENG CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-21
Publication Date
2026-03-06

AI Technical Summary

Technical Problem

Existing rebar tying tools are laborious to operate and pose safety hazards, especially when working at heights, as the tools may slip from the hands and injure others.

Method used

A manual wire-tying tool was designed, comprising pliers, a nut, a safety chain, and a keychain. The tool is designed to prevent it from falling off by attaching a safety chain to the end of the pliers handle and hanging a safety rope on the keychain. A nut is welded to the middle of the pliers head to reduce the gripping force required.

Benefits of technology

It achieves labor-saving operation and improved safety, preventing tools from falling and injuring others, while also being simple in structure, easy to manufacture, and low in cost.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a manual wire binding tool for binding reinforcing steel bars, which comprises a pair of pliers and further comprises two nuts, a safety hanging chain and a key chain, the two nuts are symmetrically welded on the outer side of the middle of a pliers head of the pliers respectively, a hanging hole is formed in the tail of a handle of the pliers, and the safety hanging chain is connected with the key chain. The tail end of the safety hanging chain is connected to the hanging hole, and the head end of the safety hanging chain is connected with the key chain. When the steel bar binding clamp is used for binding steel bars, the strength of a worker is mainly used for rotating the handles of the clamp, the handle of the clamp does not need to be forcefully held to ensure that the clamp mouth of the clamp clamps an iron wire, and therefore labor is saved; when in use, the key chain is hung on a trouser loop of trousers of a worker or a safety rope on the body of the worker, so that when the worker binds a reinforcing steel bar, if a tool slips out of the hand, the tool cannot fall off to injure a lower operator, and the safety is better. Moreover, the device has the advantages of simple structure, simplicity and convenience in manufacturing, low manufacturing cost and convenience in use.
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Description

Technical Field

[0001] This utility model belongs to the field of building construction technology, and specifically relates to a manual wire-tying tool for tying reinforcing bars. Background Technology

[0002] During construction projects, it's common to encounter situations where steel bars need to be tied with wire. Workers typically use pliers to twist the wire together, manually gripping and twisting the wire until it's tight. This method is usually quite strenuous, as workers must use both gripping the pliers to ensure the jaws are tight and turning the pliers, easily leading to hand fatigue. Furthermore, construction sites often involve tying steel bars at heights; fatigued hands can cause the pliers to slip and fall, posing a risk of injuring others below.

[0003] Based on the above problems, a rebar tying tool that is easy to manufacture, simple to operate, economical, safe, and labor-saving is needed on the construction site. Utility Model Content

[0004] This utility model provides a manual wire-tying tool for tying reinforcing bars to solve the technical problems existing in the prior art. The tool is easy to manufacture, simple to operate, economical, safe and labor-saving.

[0005] The technical solution adopted by this utility model to solve the technical problems existing in the prior art is: a manual wire-tying tool for tying reinforcing bars, including a pair of pliers, two nuts, a safety chain and a key ring, the two nuts being symmetrically welded to the outer side of the middle of the pliers head, a hanging hole being provided at the tail of one handle of the pliers, the tail end of the safety chain being connected to the hanging hole, and the head end of the safety chain being connected to the key ring.

[0006] The centerline of the nut is parallel to the length direction of the pliers.

[0007] The key ring consists of a key ring and a key buckle. The key ring and the key buckle are connected by a connecting ring and a pin. The pin is fixed to the key buckle and rotatably connected to the connecting ring. The connecting ring is connected to the key ring.

[0008] The safety chain is made of alloy steel or stainless steel.

[0009] The two nuts are of the same type and size.

[0010] The advantages and positive effects of this utility model are as follows: By adopting a structure in which two nuts are symmetrically welded to the outer side of the middle of the pliers head, when tying rebar, the worker's strength is mainly used to turn the pliers handle, without having to grip the handle tightly to ensure the pliers jaws clamp the wire, thus saving effort; by connecting a safety chain to the end of one of the pliers handles, and a keychain to the head of the safety chain, the keychain can be hung on the worker's trouser loop or safety rope during use. This prevents the tool from falling and injuring workers below if it slips out of their hands while tying rebar, providing good safety. Furthermore, this utility model also has the advantages of simple structure, easy manufacturing, low production cost, and convenient use. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of this utility model;

[0012] Figure 2 This is a structural schematic diagram of the application of this utility model.

[0013] In the picture: 1. Pliers; 2. Hanging hole; 3. Nut; 4. Safety chain; 5. Key ring; 5-1. Key ring; 5-2. Pin; 5-3. Key ring; 5-4. Connecting ring; 6. Rebar; 7. Wire. Detailed Implementation

[0014] To further understand the invention content, features, and effects of this utility model, the following embodiments are provided, and detailed descriptions are given below in conjunction with the accompanying drawings:

[0015] Please see Figure 1 and Figure 2 A manual wire-tying tool for tying rebar includes a pair of pliers 1, two nuts 3, a safety chain 4, and a key ring 5. The two nuts 3 are symmetrically welded to the outer side of the middle part of the pliers head. A hanging hole 2 is provided at the tail of one handle of the pliers 1. The tail end of the safety chain 4 is connected to the hanging hole, and the head end of the safety chain 4 is connected to the key ring.

[0016] The more preferred solution in this embodiment is as follows:

[0017] The centerline of the nut 3 is parallel to the length of the pliers for ease of use. The key ring 5 includes a key ring 5-1 and a key buckle 5-3, which are connected by a connecting ring 5-4 and a pin 5-2. The pin 5-2 is fixedly connected to the key buckle 5-3 and rotatably connected to the connecting ring 5-4, which is connected to the key ring 5-1. The safety chain 4 is made of alloy steel and has good strength. Both nuts 3 are of the same model and size, facilitating manufacturing.

[0018] The pliers 1, nuts 3, safety chain 4, and keychain 5 are all readily available at the construction site and are relatively economical to manufacture. To make them, first prepare one pair of pliers 1, two identical nuts 3, one safety chain 4, and one keychain 5. Then, use an electric drill to drill a hanging hole 2 at the end of one of the handles of the pliers 1. Use electric welding to symmetrically weld the two nuts 3 to the outer side of the middle part of the pliers 1's head, ensuring the center lines of the screw holes of the two nuts 3 are parallel to the length of the pliers 1. Attach the keychain 5 to the beginning of the safety chain 4. Attach the end of the safety chain 4 to the hanging hole 2. The manual wire-tying tool is now complete. The safety chain 4, once attached to the hanging hole 2, can move but will not fall off.

[0019] Before use, the keychain 5 should be hung on the worker's trouser loop or safety rope. This prevents the tool from falling and injuring workers below if it slips out of their hands while tying the rebar 6, providing better safety. When using, first wrap the two connecting parts of the wire 7 used for tying the rebar 6 several times at their intersection. Then, thread both ends of the wire 7 into the screw holes of the two nuts 3, and bend the protruding part of the wire 7 to prevent it from coming out of the screw holes of the nuts 3. Hold the handle of the pliers 1 and rotate it. Rotation can be done with one or both hands as needed. As it rotates, the two ends of the wire 7 will gradually wrap together. Compared to the previous method of twisting the wire with the pliers, using this tool to tie the rebar requires less effort because the worker's strength is mainly used to rotate the pliers handle, without needing to grip the handle to ensure the pliers clamp the wire tightly.

[0020] The materials used in this invention are readily available on construction sites, easy to manufacture, simple to operate, economical, and safe and labor-saving.

[0021] Although the preferred embodiments of the present invention have been described above in conjunction with the accompanying drawings, the present invention is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of the present invention without departing from the spirit and scope of the claims, and these all fall within the protection scope of the present invention.

Claims

1. A hand tying tool for steel reinforcement tying comprising a pair of pliers characterised in that, The utility model also comprises two nuts, a safety hanging chain and a key ring, the two nuts are symmetrically welded on the outer side of the middle part of the head of the pliers, a hanging hole is formed in the tail of one handle of the pliers, the tail end of the safety hanging chain is connected to the hanging hole, and the head end of the safety hanging chain is connected to the key ring.

2. The hand tying tool for steel reinforcement tying according to claim 1, characterized in that, The center line direction of the nut is parallel to the length direction of the pliers.

3. The hand tying tool for steel reinforcement tying according to claim 1, characterized in that, The key ring and the key ring are connected through a connecting ring and a pin shaft, the pin shaft is fixedly connected to the key ring and rotationally connected to the connecting ring, and the connecting ring is connected to the key ring.

4. The hand tying tool for steel reinforcement tying according to claim 1, characterized in that, The safety hanging chain is made of alloy steel or stainless steel.

5. The hand tying tool for steel reinforcement tying according to claim 1, characterized in that, The two nuts are of the same type and size.