A manual ring cutter and a manual ring cutter set

By introducing a screw drive mechanism into manual ring cutters, the problem of slippage when cutting rings with high hardness with diagonal pliers is solved, achieving a stable and labor-saving cutting effect and avoiding secondary damage.

CN224322426UActive Publication Date: 2026-06-05永州经济技术开发区消防救援大队

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
永州经济技术开发区消防救援大队
Filing Date
2025-05-13
Publication Date
2026-06-05

AI Technical Summary

Technical Problem

Existing diagonal pliers are prone to slipping when cutting hard metal rings, causing secondary injuries to the rescued person.

Method used

A manual ring cutter was designed. By setting a screw and a threaded hole at the end of the pliers handle, the screw drives the pliers head to close, achieving stable cutting of rings and avoiding slippage.

Benefits of technology

By using a screw drive, the force on the pliers head is balanced, the cutting process is stable, and secondary damage caused by slippage of the diagonal pliers is avoided.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN224322426U_ABST
    Figure CN224322426U_ABST
Patent Text Reader

Abstract

The utility model relates to a kind of manual ring cutter and manual ring cutter suit, and manual ring cutter includes bevelled mouth forceps body, the tail end of the first forceps handle of bevelled mouth forceps body is equipped with first through-hole, the tail end of the second forceps handle of bevelled mouth forceps body is equipped with threaded hole;Further include screw rod, screw rod is passed through first through-hole and is screwed with threaded hole, the bottom size of screw rod bolt head is greater than the size of first through-hole;Manual ring cutter suit includes box body, and expansion forceps, flexible PC film and manual ring cutter are placed in box body;The utility model is used to the process stability of manual ring cutter cutting ring, effectively avoid cutting moment, bevelled mouth forceps slip, cause secondary injury to the person rescued, place the tool matched in cutting process in box, avoid missing required tool, can effectively improve rescue efficiency, and complete rescue tool is placed in box body and is conveniently carried.
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Description

Technical Field

[0001] This utility model relates to the field of rescue tool technology, and in particular to a manual ring cutter and a manual ring cutter set. Background Technology

[0002] In fire rescue and emergency rescue operations, it is common to encounter situations where rescued individuals cannot remove their rings due to finger swelling. The current common rescue method is to use ordinary diagonal pliers to cut the ring. However, when cutting metal rings, especially those made of harder materials such as stainless steel, a large amount of force is required. If too much force is applied, the diagonal pliers are prone to slipping at the moment of cutting, which can easily cause secondary injury to the rescued individual. Utility Model Content

[0003] The purpose of this invention is to provide a manual ring cutter and a manual ring cutter set to solve the above-mentioned problems existing in the prior art.

[0004] The technical solution of this utility model to solve the above-mentioned technical problems is as follows:

[0005] A manual ring cutter includes a diagonal pliers body, a first through hole at the tail end of a first handle of the diagonal pliers body, and a threaded hole at the tail end of a second handle of the diagonal pliers body; it also includes a screw rod, which passes through the first through hole and is screwed into the threaded hole, and the bottom dimension of the bolt head of the screw rod is larger than the dimension of the first through hole.

[0006] The beneficial effects of this utility model are: by rotating the screw, the first clamp handle gradually moves closer to the second clamp handle under the contact of the screw, thereby causing the two clamp heads to close and cut the ring. The transmission is carried out through the screw at the end of the clamp handle, which saves effort and the clamp heads are evenly stressed. The closing process is stable, thus ensuring a stable cutting process for the ring. This effectively avoids the diagonal clamps slipping at the moment of cutting, which could cause secondary injury to the person being rescued.

[0007] Based on the above technical solution, the present invention can be further improved as follows.

[0008] Furthermore, the tail end of the second clamp handle is fitted with an installation ring, and the bottom of the second clamp handle has a threaded hole, and a second through hole is provided on the second clamp handle corresponding to the threaded hole.

[0009] Furthermore, the inner ring shape of the mounting ring matches the tail end shape of the second clamp handle, and the top of the mounting ring has an opening.

[0010] Springs are installed on the first and second handles near the jaws of the diagonal pliers.

[0011] Another technical solution of this utility model is as follows:

[0012] A manual ring cutter kit includes a box containing expander pliers, a flexible PC film, and the aforementioned manual ring cutters.

[0013] The beneficial effects of this utility model are: placing the tools used in the cutting process in the box avoids missing any necessary tools, effectively improving rescue efficiency, and the complete set of rescue tools placed in the box makes it easy to carry. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the explosive structure of a manual ring cutter according to this utility model.

[0015] Figure 2 This is a schematic diagram of the assembly structure of a manual ring cutter according to the present invention.

[0016] The attached diagram lists the components represented by each number as follows:

[0017] 1. Diagonal jaw pliers body; 11. First pliers handle; 111. First through hole; 12. Second pliers handle; 121. Second through hole; 122. Mounting ring; 1221. Threaded hole; 1222. Opening; 2. Screw; 21. Bolt head; 211. Tightening part; 3. Spring. Detailed Implementation

[0018] The principles and features of this utility model are described below with reference to the accompanying drawings. The examples given are only for explaining this utility model and are not intended to limit the scope of this utility model.

[0019] Example 1

[0020] like Figures 1 to 2 As shown, a manual ring cutter includes a diagonal pliers body 1, the tail end of the first pliers handle 11 of the diagonal pliers body 1 is provided with a first through hole 111, and the tail end of the second pliers handle 12 of the diagonal pliers body 1 is provided with a threaded hole 1221; it also includes a screw 2, the screw 2 passes through the first through hole 111 and is screwed into the threaded hole 1221, and the bottom size of the bolt head 21 of the screw 2 is larger than the size of the first through hole 111.

[0021] When cutting a ring on a person being rescued, first, insert one of the jaws of the diagonal pliers body 1 between the ring and the finger. Then, rotate the screw 2. The first jaw 11 gradually moves closer to the second jaw 12 under the contact of the bolt head 21, so that the two jaws close together to cut the ring. The transmission is through the screw at the end of the jaw, which saves effort and the jaws are evenly stressed. The closing process is stable, thus making the ring cutting process stable and effectively avoiding the diagonal pliers slipping at the moment of cutting, which could cause secondary injury to the person being rescued.

[0022] It should be noted that during the process of the first clamp handle 11 approaching the second clamp handle 12, the movement trajectory is arc-shaped. Therefore, the size of the first through hole 111 is larger than the size of the screw 2, so that the screw 2 has a lateral displacement relative to the first through hole 111. In specific implementation, the first through hole 111 is an oblong hole.

[0023] Example 2

[0024] This embodiment is a further improvement on embodiment 1, as detailed below:

[0025] The tail end of the second clamp handle 12 is fitted with a mounting ring 122, and the bottom of the mounting ring 122 is provided with a threaded hole 1221. The second clamp handle 12 is provided with a second through hole 121 corresponding to the threaded hole 1221.

[0026] The screw 2 is threadedly connected to the threaded hole 1221. After long-term use, the threaded hole 1221 may strip. The tail of the second clamp 12 is provided with a mounting ring 122, and the threaded hole 1221 is opened on the mounting ring 122. When the threaded hole 1221 strips, only the mounting ring 122 needs to be replaced, which can effectively avoid the waste of consumables.

[0027] The inner ring shape of the mounting ring 122 matches the tail end shape of the second clamp handle 12, and the top of the mounting ring 122 is provided with an opening 1222.

[0028] The opening 1222 facilitates the fitting and removal of the mounting ring 122 on the second clamp handle 12. It should be noted that during use, the screw 2 applies an upward force to the mounting ring 122, and the opening at the top of the mounting ring 122 does not affect the application of this force.

[0029] Example 3

[0030] This embodiment is a further improvement on embodiment 1 or 2, as detailed below:

[0031] The top of the bolt head 21 is provided with a screwing part 211; the screw 2 can be screwed without the need for other auxiliary tools, which further improves the convenience of operation and the efficiency of rescue.

[0032] Example 4

[0033] This embodiment is a further improvement on any one of embodiments 1 to 3, as detailed below:

[0034] Springs 3 are provided on the first handle 11 and the second handle 12 near the jaws 13 of the diagonal pliers body 1; the springs can keep the first handle 11 in contact with the bolt head 21, further improving the stability of the shearing ring.

[0035] Example 5

[0036] This embodiment is a further improvement on any one of embodiments 1 to 4, as detailed below:

[0037] A manual ring cutter kit includes a box containing expander pliers, a flexible PC film, and manual ring cutters.

[0038] Placing the necessary tools for the cutting process in the box prevents the omission of any required tools, effectively improving rescue efficiency. Furthermore, the complete set of rescue tools is conveniently located in the box for easy carrying.

[0039] In practice, firstly, before cutting the ring, a flexible PC film is inserted between the ring and the finger to protect the finger; then, the ring is cut off with manual ring cutters as in the previous embodiment; finally, expand the ring by holding both ends of the ring with expanders and then remove the ring from the finger.

[0040] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A manual ring cutter, characterized in that, The pliers include a diagonal pliers body (1), the tail end of the first pliers handle (11) of the diagonal pliers body (1) is provided with a first through hole (111), and the tail end of the second pliers handle (12) of the diagonal pliers body (1) is provided with a threaded hole (1221); it also includes a screw (2), the screw (2) passes through the first through hole (111) and is screwed into the threaded hole (1221), and the bottom size of the bolt head (21) of the screw (2) is larger than the size of the first through hole (111).

2. The manual ring cutter according to claim 1, characterized in that, The tail end of the second clamp handle (12) is fitted with a mounting ring (122), and the bottom of the mounting ring (122) is provided with the threaded hole (1221). The second clamp handle (12) is provided with a second through hole (121) corresponding to the threaded hole (1221).

3. The manual ring cutter according to claim 2, characterized in that, The inner ring shape of the mounting ring (122) matches the tail end shape of the second clamp handle (12), and the top of the mounting ring (122) is provided with an opening (1222).

4. The manual ring cutter according to claim 1, characterized in that, The top of the bolt head (21) is provided with a screwing part (211).

5. The manual ring cutters according to any one of claims 1 to 4, characterized in that, Springs (3) are provided at the first handle (11) and the second handle (12) near the jaws (13) of the diagonal jaw pliers body (1).

6. A manual ring cutter set, characterized in that, The device includes a box containing expander pliers, a flexible PC film, and a manual ring cutter as described in any one of claims 1 to 5.