A locking mechanism for a knife sheath

CN224779993UActive Publication Date: 2026-09-22TIANJIN HERUIXINGHUA TECH CO LTD
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Patent Information

Application Number
CN202521875846.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-09-02
Publication Date
2026-09-22
Estimated Expiration
2035-09-02

AI Technical Summary

Technical Problem

[0004]现有的用于刀套的锁定机构多是包括与刀套主体固定连接的拉钉配块,并在拉钉配块内部集成呈环形分布的多组伸缩卡扣结构,在具体实施过程中,拉钉配块多为一体式结构,后续进行伸缩卡扣结构独立的拆装更换会较为不便,故而亟待提出相应的用于刀套的锁定机构来解决上述问题

Benefits of technology

[0014]1、本申请中,将分体一与分体二组合,固定盘与卡块对应结合在由分体一与分体二组成的圆孔与矩形孔内部,插杆对应结合到配合槽内部,以此实现分体一与分体二的快速对位的同时,为分体二提供了轴向约束力,将组合好的拉钉配块结合到刀套主体的顶部,直至到拉钉配块底部与台阶相抵接,最后通过侧片与锁紧杆的配合实现拉钉配块与刀套主体的固定,以此保证了同于刀套的锁定结构位置稳定的同时,锁定结构内部的伸缩组件可进行便捷的拆装。

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Abstract

The utility model discloses a locking mechanism for knife cover, including the knife cover main part and draw a nail matching block, draw a nail matching block includes split body one and split body two, split body one and split body two constitute rectangular hole and round hole, the rectangular hole inside snap has fixed disc, and the fixed disc outer surface wall is provided with telescopic component. In this application, split body one and split body two are combined, and fixed disc and clamping block are combined in the round hole and rectangular hole formed by split body one and split body two, and the insertion rod is combined into the cooperation groove, so that split body one and split body two are quickly aligned, and axial constraint force is provided for split body two, the combined draw a nail matching block is combined to the top of knife cover main part, until to draw a nail matching block bottom and step abut, finally through the cooperation of side piece and locking rod, the fixation of draw a nail matching block and knife cover main part is realized, so that the position stability of the locking structure of the knife cover is ensured, and the telescopic component in the locking structure can be conveniently disassembled and assembled.
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Description

Technical Field

[0001] This utility model relates to the field of tool sheath accessories, and in particular to a locking mechanism for tool sheaths. Background Technology

[0002] The locking mechanism for the tool holder refers to the mechanism used to connect and fix the tool holder to the cutting tool.

[0003] Chinese Patent Publication No. CN219649312U, published on 20230908, discloses a tool sheath device, including a tool sheath body. A pull pin block is fixed inside the tool sheath body by a snap ring. The pull pin block has a through hole, and the inner wall of the through hole has a mounting groove. A limiting mechanism for fixing a tool is installed inside the mounting groove. The limiting mechanism includes a compression spring connected to the inner wall of the mounting groove, and a steel ball is connected to the end of the compression spring.

[0004] Existing locking mechanisms for tool sheaths mostly consist of a pull pin block that is fixedly connected to the main body of the tool sheath, and multiple sets of telescopic buckle structures are integrated in a ring inside the pull pin block. In actual implementation, the pull pin block is mostly an integral structure, which makes it inconvenient to disassemble and replace the telescopic buckle structure independently. Therefore, it is urgent to propose a corresponding locking mechanism for tool sheaths to solve the above problems. Utility Model Content

[0005] The purpose of this utility model is to provide a locking mechanism for a tool sheath in order to solve the above-mentioned problems.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A locking mechanism for a knife sheath includes a knife sheath body and a pull pin assembly. The pull pin assembly includes a first part and a second part, which form a rectangular hole and a round hole. A fixing plate is engaged inside the rectangular hole. A telescopic component is provided on the outer wall of the fixing plate. The bottom of the second part abuts against the inner wall of the knife sheath body via a step. The top of the first part is detachably connected to the top of the knife sheath body.

[0008] Preferably, a side plate is fixedly connected to one outer wall of the split body, and the side plate is fixedly connected to the top of the blade sheath body by a locking rod.

[0009] Preferably, the side plate has a rectangular cross-section, and the outer wall of the side plate engages with the top of the blade sheath body through a slot.

[0010] Preferably, the telescopic component includes a locking block integrated inside the circular hole, and a spring is fixedly connected between the locking block and the fixed plate.

[0011] Preferably, a plug is fixedly connected to the bottom of the first split part, and the outer wall of the plug is engaged with the top of the second split part through a connecting groove.

[0012] Preferably, multiple sets of the insertion rod and the connecting groove are provided, and the multiple sets of the connecting groove and the insertion rod are arranged in a ring.

[0013] In summary, due to the adoption of the above technical solution, the beneficial effects of this utility model are:

[0014] 1. In this application, the first and second parts are combined, and the fixing plate and the locking block are correspondingly engaged in the round hole and the rectangular hole formed by the first and second parts, respectively. The insertion rod is correspondingly engaged in the mating groove. This achieves quick alignment of the first and second parts while providing axial constraint force for the second part. The assembled pull pin block is then engaged in the top of the blade sleeve body until the bottom of the pull pin block abuts against the step. Finally, the pull pin block is fixed to the blade sleeve body through the cooperation of the side plate and the locking rod. This ensures that the locking structure of the blade sleeve is stable in position, while the telescopic components inside the locking structure can be easily disassembled and assembled.

[0015] 2. In this application, a slot is provided on the top of the blade sheath body, and the side plate is pre-engaged with the top of the blade sheath body through the slot. This facilitates the rapid screwing of the locking rod and allows for quick determination of the axial posture of the pull pin block connected to the blade sheath body, thereby further improving the ease of use of the locking mechanism for the blade sheath. Attached Figure Description

[0016] Figure 1 A schematic diagram of the overall structure according to an embodiment of the present utility model is shown;

[0017] Figure 2 A schematic diagram of a card slot structure according to an embodiment of the present invention is shown;

[0018] Figure 3 A schematic diagram of the rivet block structure provided according to an embodiment of the present utility model is shown;

[0019] Figure 4 A schematic diagram of the insertion rod structure provided according to an embodiment of the present utility model is shown.

[0020] Illustration: 1. Knife sheath body; 2. Rivet block; 201. Part 1; 202. Part 2; 3. Side plate; 4. Locking rod; 5. Step; 6. Slot; 7. Round hole; 8. Rectangular hole; 9. Insert rod; 10. Fixing plate; 11. Spring; 12. Block. Detailed Implementation

[0021] 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 skilled in the art without creative effort are within the protection scope of the present utility model.

[0022] Please see Figure 1-4 This utility model provides a technical solution:

[0023] A locking mechanism for a knife sheath includes a knife sheath body 1 and a pull pin assembly 2. The pull pin assembly 2 includes a first part 201 and a second part 202. The first part 201 and the second part 202 form a rectangular hole 8 and a round hole 7. A fixing plate 10 is engaged inside the rectangular hole 8. A telescopic component is provided on the outer wall of the fixing plate 10. The bottom of the second part 202 abuts against the inner wall of the knife sheath body 1 through a step 5. The top of the first part 201 is detachably connected to the top of the knife sheath body 1.

[0024] The first split piece 201 and the second split piece 202 are combined. The fixing plate 10 and the locking block 12 are correspondingly engaged in the round hole 7 and the rectangular hole 8 formed by the first split piece 201 and the second split piece 202. The insertion rod 9 is correspondingly engaged in the mating groove. This achieves quick alignment of the first split piece 201 and the second split piece 202, while providing axial constraint force for the second split piece 202. The assembled pull pin block 2 is then engaged in the top of the blade sleeve body 1 until the bottom of the pull pin block 2 abuts against the step 5. Finally, the pull pin block 2 is fixed to the blade sleeve body 1 through the cooperation of the side plate 3 and the locking rod 4. This ensures that the locking structure of the blade sleeve is stable in position, while the telescopic components inside the locking structure can be easily disassembled and assembled.

[0025] Specifically, such as Figure 2 and Figure 4 As shown, a side piece 3 is fixedly connected to the outer wall of the split body 201. The side piece 3 is fixedly connected to the top of the cutter body 1 through a locking rod 4. The side piece 3 has a rectangular cross-section. The outer wall of the side piece 3 is engaged with the top of the cutter body 1 through a slot 6. The cutter body 1 has a slot 6 on its top. The side piece 3 is pre-engaged with the top of the cutter body 1 through the slot 6, which facilitates the rapid screwing of the locking rod 4 and allows for quick determination of the axial posture of the pull pin block 2 connected to the cutter body 1, thereby further improving the ease of use of the locking mechanism for the cutter body.

[0026] Specifically, such as Figure 2 and Figure 3As shown, the telescopic assembly includes a locking block 12 integrated inside the circular hole 7. A spring 11 is fixedly connected between the locking block 12 and the fixed plate 10 to fix the tool. A plug rod 9 is fixedly connected to the bottom of the first split part 201. The outer wall of the plug rod 9 engages with the top of the second split part 202 through a mating groove. Multiple sets of plug rod 9 and mating grooves are provided, and the multiple sets of mating grooves and plug rod 9 are arranged in a ring. The fixed plate 10 and the locking block 12 are correspondingly engaged inside the circular hole 7 and the rectangular hole 8 formed by the first split part 201 and the second split part 202. The plug rod 9 is correspondingly engaged inside the mating groove, thereby realizing the rapid alignment of the first split part 201 and the second split part 202 while providing axial constraint force for the second split part 202.

[0027] Working principle: The first split part 201 and the second split part 202 are combined. The fixing plate 10 and the locking block 12 are correspondingly engaged inside the circular hole 7 and the rectangular hole 8 formed by the first split part 201 and the second split part 202, respectively. The insertion rod 9 is correspondingly engaged inside the mating groove. This achieves rapid alignment of the first split part 201 and the second split part 202 while providing axial constraint force for the second split part 202. The assembled pull stud block 2 is then engaged to the top of the blade sleeve body 1 until the bottom of the pull stud block 2 abuts against the step 5. Finally, the side... The cooperation between the plate 3 and the locking rod 4 secures the pull pin block 2 to the blade sleeve body 1, thereby ensuring the stability of the locking structure of the blade sleeve. At the same time, the telescopic components inside the locking structure can be easily disassembled and assembled. The top of the blade sleeve body 1 has a slot 6, and the side plate 3 is pre-engaged with the top of the blade sleeve body 1 through the slot 6. This facilitates the rapid screwing of the locking rod 4 and allows for quick determination of the axial posture of the pull pin block 2 connected to the blade sleeve body 1, thereby further improving the ease of use of the locking mechanism for the blade sleeve.

[0028] The above description of the embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A locking mechanism for a blade sheath, comprising a blade sheath body (1) and a pull pin block (2), characterized in that, The rivet assembly (2) includes a first part (201) and a second part (202). The first part (201) and the second part (202) form a rectangular hole (8) and a round hole (7). A fixing plate (10) is engaged inside the rectangular hole (8). A telescopic component is provided on the outer wall of the fixing plate (10). The bottom of the second part (202) abuts against the inner wall of the blade sleeve body (1) through a step (5). The top of the first part (201) is detachably connected to the top of the blade sleeve body (1).

2. The locking mechanism for a tool sheath according to claim 1, characterized in that, The outer wall of the split part (201) is fixedly connected to a side piece (3), and the side piece (3) is fixedly connected to the top of the blade sleeve body (1) by a locking rod (4).

3. A locking mechanism for a tool sheath according to claim 2, characterized in that, The side piece (3) has a rectangular cross-section, and the outer wall of the side piece (3) is engaged with the top of the blade sheath body (1) through a slot (6).

4. A locking mechanism for a tool sheath according to claim 3, characterized in that, The telescopic assembly includes a locking block (12) integrated inside the circular hole (7), and a spring (11) is fixedly connected between the locking block (12) and the fixed plate (10).

5. A locking mechanism for a tool sheath according to claim 1, characterized in that, The bottom of the first part (201) is fixedly connected to a rod (9), and the outer wall of the rod (9) is engaged with the top of the second part (202) through a groove.

6. A locking mechanism for a tool sheath according to claim 5, characterized in that, The insertion rod (9) and the connecting groove are provided in multiple sets, and the multiple sets of connecting grooves and insertion rod (9) are arranged in a ring.

Citation Information

Patent Citations

  • Knife pouch device

    CN219649312U