Scissor lock catch structure

By designing a locking mechanism consisting of a connecting block, a snap-fit ​​plate, and a screw on the scissors, and using a knob to drive the snap-fit ​​plate to insert, the mechanical limit locking of the scissors is achieved. This solves the problems of easy fatigue of spring structures and insufficient magnetic attraction stability, and achieves a stable and convenient locking effect.

CN224116215UActive Publication Date: 2026-04-14SHANDONG JINJU POWDER METALLURGY
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-05-26
Publication Date
2026-04-14

AI Technical Summary

Technical Problem

The spring structure in the existing scissors' locking mechanism is prone to elastic fatigue and the magnetic adsorption stability is insufficient, which leads to the risk of decreased locking force or disengagement.

Method used

A locking mechanism consisting of a connecting block, a snap-fit ​​plate, and a screw is adopted. The snap-fit ​​plate is driven by a knob to insert into the slot, thereby achieving mechanical limiting and locking fixation of the first and second cutting edges.

Benefits of technology

It achieves stable locking of the scissors in the closed state, is simple and convenient to operate, and the mechanical limit improves the stability of the lock, avoiding the risk of failure due to elastic fatigue or insufficient magnetic force.

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Abstract

The utility model discloses a scissors lock catch structure in the technical field of scissors lock catches, which comprises a lock catch mechanism for fixing scissors, the scissors comprise a first blade, a second blade and a pin shaft, and the first blade is hinged with the second blade through the pin shaft; the locking mechanism comprises a connecting block, a buckling plate and a screw rod, the connecting block is fixedly connected to the end of the first blade, the buckling plate is slidably connected into the connecting block, the buckling plate is of an L-shaped structure, the end of the second blade is fixedly connected with a cutter handle integrated with the second blade, a clamping groove is formed in one side of the cutter handle, one end of the buckling plate is inserted into the clamping groove in a matched mode, and the other end of the buckling plate is connected with the screw rod in a matched mode. And the upper side of the other end of the buckle plate is fixedly connected with a sliding block which is in threaded connection with the screw rod. The utility model has the advantages that the buckle plate can be driven to be inserted into the clamping groove by rotating the knob in the embodiment of the utility model, the first blade and the second blade are locked and fixed, the operation is simple and convenient, and the stability of locking and fixing the first blade and the second blade through mechanical limiting is high.
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Description

Technical Field

[0001] This utility model relates to the field of scissor lock technology, specifically to a scissor lock structure. Background Technology

[0002] In daily life and industrial applications, scissors are a common cutting tool, and their safety and convenience are particularly important. Traditional scissors usually use a simple pin hinge structure to open and close, but when carried or stored, the blades can easily open accidentally due to external force, posing a risk of cutting the user or damaging the item.

[0003] To address this issue, various locking structure designs have emerged in the prior art, such as using spring clips or magnetic devices to secure the scissors in their closed state. However, these designs still have significant shortcomings: spring clip structures are prone to elastic fatigue after long-term use, leading to a decrease in locking force and potential failure; magnetic devices are limited by magnetic strength and are prone to detachment under significant external impact, resulting in insufficient stability. Utility Model Content

[0004] The technical problem this invention aims to solve is that the spring structure in the locking structure of existing scissors is prone to elastic fatigue and has insufficient magnetic adsorption stability.

[0005] To achieve the above objectives, the technical solution provided by this utility model is as follows:

[0006] A scissor locking structure includes a locking mechanism for fixing scissors, the scissors including a first blade, a second blade and a pin, the first blade and the second blade being hinged together by the pin;

[0007] The locking mechanism includes a connecting block, a snap-fit ​​plate, and a screw. The connecting block is fixed to the end of the first blade, and the snap-fit ​​plate is slidably connected to the connecting block. The snap-fit ​​plate has an L-shaped structure. The end of the second blade is fixedly connected to a handle integral with it. A slot is provided on one side of the handle. One end of the snap-fit ​​plate is inserted into the slot, and a slider threaded to the screw is fixedly connected to the upper side of the other end of the snap-fit ​​plate.

[0008] Furthermore, a connecting groove is provided on one side of the connecting block, and the tool holder extends movably into the connecting groove.

[0009] Furthermore, the connecting block is provided with an installation groove, which is connected to the connecting groove, and the buckle plate is slidably disposed in the installation groove and extends movably into the connecting groove.

[0010] Furthermore, the upper end of the mounting groove is provided with a sliding groove, the screw is horizontally rotatably connected to the sliding groove, and the slider is horizontally slidably engaged in the sliding groove.

[0011] Furthermore, a groove is provided at the upper end of the connecting block, and a knob is fixedly connected to one end of the screw. The knob is vertically rotatable within the groove and protrudes from the upper surface of the connecting block.

[0012] Furthermore, both the connecting block and the rear end of the tool holder are fixedly connected to handles, and the two handles are symmetrically distributed.

[0013] The beneficial effects of this utility model by adopting the above structure are as follows:

[0014] In this embodiment of the invention, when the first and second blades are closed, the handle is inserted into the connecting groove. Rotating the knob drives the buckle plate to be inserted into the groove, thereby locking and fixing the first and second blades. The operation is simple and convenient, and the mechanical limiting mechanism ensures strong stability in locking and fixing the two blades. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the entire machine of this utility model.

[0016] Figure 2 This is an exploded view of the present invention.

[0017] Figure 3 Cross-sectional view of the connecting block of this utility model Figure 1 .

[0018] Figure 4 Cross-sectional view of the connecting block of this utility model Figure 2 .

[0019] Figure 5 This is a schematic diagram of the buckle plate connection of this utility model.

[0020] Explanation of reference numerals in the attached figures:

[0021] 1. First cutting edge, 2. Second cutting edge, 3. Pin, 4. Connecting block, 401. Mounting groove, 402. Slide groove, 403. Groove, 404. Connecting groove, 5. Handle, 501. Slot, 6. Snap plate, 601. Slider, 602. Screw, 603. Knob, 7. Handle. Detailed Implementation

[0022] like Figure 1-5 As shown, a scissor locking structure includes a locking mechanism for fixing scissors. The scissors include a first blade 1, a second blade 2, and a pin 3. The first blade 1 and the second blade 2 are hinged together by the pin 3.

[0023] like Figure 2 , 5As shown, the locking mechanism includes a connecting block 4, a latching plate 6, and a screw 602. The connecting block 4 is fixedly connected to the end of the first blade 1, and the latching plate 6 is slidably connected within the connecting block 4. The latching plate 6 has an L-shaped structure. The end of the second blade 2 is fixedly connected to a handle 5 integrally formed with it. A connecting groove 404 is provided on one side of the connecting block 4, and the handle 5 extends movably into the connecting groove 404. A latching groove 501 is provided on one side of the handle 5, and one end of the latching plate 6 is inserted into a fitting. The buckle plate 6 is fitted into the slot 501. A slider 601 threadedly connected to the screw 602 is fixed to the upper side of the other end of the buckle plate 6. A groove 403 is provided on the upper end of the connecting block 4. A knob 603 is fixed to one end of the screw 602. The knob 603 is vertically rotatable in the groove 403 and protrudes from the upper surface of the connecting block 4. By rotating the knob 603, the buckle plate 6 is driven to move horizontally and then inserted into the slot 501 to achieve the locking and fixing of the first blade 1 and the second blade 2.

[0024] like Figure 2-5 As shown, the connecting block 4 is provided with an installation groove 401, which is connected to the connecting groove 404. The buckle plate 6 is slidably disposed in the installation groove 401 and extends movably into the connecting groove 404. The upper end of the installation groove 401 is provided with a sliding groove 402. The screw 602 is horizontally rotatably connected to the sliding groove 402. The slider 601 is horizontally slidably engaged in the sliding groove 402. The installation groove 401 and the sliding groove 402 limit the buckle plate 6 and the slider 601, thereby improving the stability of the horizontal movement of the buckle plate 6.

[0025] like Figure 1 , 2 As shown, both the connecting block 4 and the rear end of the handle 5 are fixed with handles 7, and the two handles 7 are symmetrically distributed.

[0026] When the scissors are not in use, the first blade 1 and the second blade 2 overlap, and the handle 5 is installed and fitted in the connecting groove 404. The knob 603 protruding from the upper side of the connecting block 4 is turned so that it rotates in the groove 403, which in turn drives the screw 602 to rotate, which in turn drives the slider 601 to slide in the sliding groove 402, which in turn drives the buckle plate 6 to slide in the mounting groove 401, so that one end of the buckle plate 6 extends from the mounting groove 401 into the connecting groove 404 and is inserted into the buckle groove 501 of the handle 5, thereby realizing the limiting and fixing of the handle 5 in the connecting groove 404, that is, realizing the locking and fixing of the first blade 1 and the second blade 2.

[0027] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. A scissor lock structure, characterized by: Includes a locking mechanism for securing scissors, the scissors including a first blade (1), a second blade (2) and a pin (3), the first blade (1) and the second blade (2) being hinged together by the pin (3); The locking mechanism includes a connecting block (4), a snap plate (6), and a screw (602). The connecting block (4) is fixed to the end of the first blade (1). The snap plate (6) is slidably connected to the connecting block (4). The snap plate (6) is designed as an L-shaped structure. The end of the second blade (2) is fixedly connected to a handle (5) integral with it. A slot (501) is provided on one side of the handle (5). One end of the snap plate (6) is inserted into the slot (501). The other end of the snap plate (6) is fixedly connected to a slider (601) threaded onto the screw (602).

2. The scissor lock structure of claim 1, wherein: The connecting block (4) has a connecting groove (404) on one side, and the knife handle (5) extends into the connecting groove (404).

3. The scissor lock structure of claim 2, wherein: The connecting block (4) is provided with an installation groove (401), which is connected to the connecting groove (404). The buckle plate (6) is slidably disposed in the installation groove (401) and extends into the connecting groove (404).

4. The scissor lock structure of claim 3, wherein: The upper end of the mounting groove (401) is provided with a sliding groove (402), the screw (602) is horizontally rotatably connected in the sliding groove (402), and the slider (601) is horizontally slidingly engaged in the sliding groove (402).

5. The scissor lock structure according to claim 1 or 4, characterized in that: The upper end of the connecting block (4) is provided with a groove (403), and one end of the screw (602) is fixedly connected with a knob (603). The knob (603) is vertically rotated in the groove (403) and protrudes from the upper surface of the connecting block (4).

6. The scissor lock structure of claim 1 or 2, wherein: Both the connecting block (4) and the handle (5) are fixedly connected to a handle (7) at their rear ends, and the two handles (7) are symmetrically distributed.