A new locking mechanism for a butterfly knife

Abstract

The utility model discloses a novel locking mechanism of butterfly knife, including blade, the left and right sides of blade rear part are hinged with left handle and right handle respectively, the rear side of left handle is installed with one can hide lock block, the inside of left handle is installed with one lock block spring of with can hide lock block connection, lock block spring tightens can hide lock block, one end of can hide lock block is equipped with sliding protrusion, sliding protrusion is equipped with rotating protrusion, left handle is equipped with with sliding groove of sliding protrusion corresponding, the other end of can hide lock block is equipped with with the corresponding clamping groove of clamping column, the rear side of right handle is equipped with, right handle rear end is equipped with with the positioning slot of clamping column positioning. The utility model discloses simple structure, can hide lock block hides in the handle all the time, and the appearance is beautiful, need not using both hands to realize locking operation, and the operation is smooth, and convenient to use, and the user will not be locked mechanism hurt, and the use experience is good.

Description

Technical Field

[0001] This utility model relates to the field of cutting tool technology, specifically to a novel locking mechanism for a butterfly knife. Background Technology

[0002] A butterfly knife is a folding knife, also known as a folding knife. The handle of a butterfly knife can be rotated to transform into a sheath that stores the blade. When open, the handle clamps the blade stop; when closed, the blade is hidden in a recessed groove, making it very sturdy and easy to carry. The butterfly knife is an atypical folding knife, completely eliminating the need for a sheath. It can be easily and safely folded to half its original length. The handle has a dual function: it serves as a sheath and can also be rotated to form a sturdy handle. Butterfly knives generally have a locking mechanism to lock the knife when folded, preventing the blade from opening spontaneously and avoiding potential injuries in situations where users are likely to "blindly" reach for items in pockets or backpacks. However, the locking mechanism in existing butterfly knives is usually located at the end of the handle, exposed and unsightly. It generally requires both hands to lock, making it inconvenient and increasing the risk of injury from the locking mechanism, resulting in a poor user experience. Therefore, to avoid the shortcomings of existing technology, it is necessary to improve it. Utility Model Content

[0003] The purpose of this invention is to overcome the shortcomings and deficiencies of the existing technology and provide a new type of locking mechanism for a concealed and easy-to-use butterfly knife.

[0004] This utility model is achieved through the following technical solution:

[0005] A novel locking mechanism for a butterfly knife includes a blade. A left handle and a right handle are hinged to the left and right sides of the rear of the blade, respectively. A retractable locking block is installed on the rear side of the left handle. A locking block spring connected to the retractable locking block is installed on the inner side of the left handle. The locking block spring tensions the retractable locking block. One end of the retractable locking block has a sliding protrusion and a rotating protrusion. The left handle has a sliding groove corresponding to the sliding protrusion. The other end of the retractable locking block has a locking pin. The rear side of the right handle has a locking groove corresponding to the locking pin. The rear end of the right handle has a positioning groove for positioning the locking pin.

[0006] Furthermore, a rear left upper cover is installed on both the upper and lower sides of the rear of the left handle, and a rear right upper cover is installed on both the upper and lower sides of the rear of the right handle. The sliding groove and the positioning groove are located on the rear left upper cover, and the snap-fit ​​groove is located on the rear right upper cover.

[0007] Furthermore, a connecting post is provided between the upper right rear cover and the rear right cover.

[0008] Furthermore, one end of the retractable locking block is provided with a mounting hole for mounting one end of the locking block spring.

[0009] Furthermore, the left handle is provided with a mounting post for mounting the other end of the locking block spring.

[0010] Furthermore, the outer side of one end of the concealable locking block is provided with several anti-slip operating grooves.

[0011] Furthermore, the sliding protrusion is elongated, and the sliding groove is elongated.

[0012] Furthermore, both the left and right handles are provided with abutment posts, and the blade is provided with abutment grooves corresponding to the abutment posts.

[0013] Furthermore, both the left and right handles are provided with opening and closing operation slots.

[0014] Furthermore, front top covers are installed on both the upper and lower sides of the front of the left handle and the upper and lower sides of the front of the right handle.

[0015] Compared to existing technologies, this invention features a locking spring installed on the inside of the left handle, which connects to a retractable locking block. One end of the retractable locking block has a sliding protrusion with a rotating protrusion. The left handle has a sliding groove corresponding to the sliding protrusion, and the other end of the retractable locking block has a locking pin. The rear side of the right handle has a locking groove corresponding to the locking pin, and the rear end of the right handle has a positioning groove for positioning the locking pin. When the butterfly knife is opened, the locking pin of the retractable locking block engages with the positioning groove, allowing the retractable locking block to be stably hidden inside the left handle. When folding the butterfly knife, first fold the left and right handles together, and then retract the blade into the left hand. The handle is inside the right handle. Then push the retractable locking block to slide it horizontally, and the locking pin will leave the positioning groove. Then rotate the retractable locking block to rotate the locking pin into the locking groove. Release the retractable locking block. Under the tension of the locking block spring, the locking pin will lock into the locking groove. When you need to open the butterfly knife, simply press the left and right handles. Under the tension of the locking block spring, the retractable locking block will automatically rotate and move, and the locking pin will re-lock into the positioning groove, allowing you to open the butterfly knife smoothly. The retractable locking block is always hidden inside the handle, which is aesthetically pleasing. The locking operation can be achieved without using both hands, making it convenient to use. Users will not be injured by the locking mechanism, providing a good user experience. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the novel locking mechanism of the butterfly knife of this utility model;

[0018] Figure 2 This is a schematic diagram of the novel locking mechanism of the butterfly knife of this utility model;

[0019] Figure 3 This is a schematic diagram of the novel locking mechanism of the butterfly knife of this utility model when it is retracted;

[0020] Figure 4 This is a schematic diagram of the structure of the concealable locking block of this utility model.

[0021] In the diagram: 1-Blade; 2-Left handle; 3-Right handle; 4-Hidden locking block; 5-Locking block spring; 6-Sliding protrusion; 7-Rotating protrusion; 8-Sliding groove; 9-Snap-fit ​​post; 10-Snap-fit ​​groove; 11-Positioning groove; 12-Rear left upper cover; 13-Rear right upper cover; 14-Connecting post; 15-Mounting hole; 16-Mounting post; 17-Anti-slip operating groove; 18-Abutting post; 19-Abutting groove; 20-Opening and closing operating groove; 21-Front upper cover. Detailed Implementation

[0022] 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 of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] like Figures 1 to 4The present invention discloses a novel locking mechanism for a butterfly knife, comprising a blade 1, a left handle 2 and a right handle 3 respectively hinged to the left and right sides of the rear of the blade, a retractable locking block 4 installed on the rear side of the left handle 2, a locking block spring 5 connected to the retractable locking block 4 installed on the inner side of the left handle 2, the locking block spring 5 tightening the retractable locking block 4, a sliding protrusion 6 provided at one end of the retractable locking block 4, a rotating protrusion 7 provided at the sliding protrusion 6, a sliding groove 8 corresponding to the sliding protrusion 6 provided at the left handle 2, a locking pin 9 provided at the other end of the retractable locking block 4, a locking groove 10 corresponding to the locking pin 9 provided at the rear side of the right handle 3, and a positioning groove 11 for positioning the locking pin 9 at the rear end of the right handle 3. A locking spring 5 connected to a retractable locking block 4 is installed on the inside of the left handle 2. One end of the retractable locking block 4 has a sliding protrusion 6, and the sliding protrusion 6 has a rotating protrusion 7. The left handle 2 has a sliding groove 8 corresponding to the sliding protrusion 6. The other end of the retractable locking block 4 has a locking pin 9. The rear side of the right handle 3 has a locking groove 10 corresponding to the locking pin 9. The rear end of the right handle 3 has a positioning groove 11 for positioning the locking pin 9. When the butterfly knife is opened for use, the locking pin 9 of the retractable locking block 4 is engaged in the positioning groove 11, so that the retractable locking block 4 is stably hidden inside the left handle 2. When folding the butterfly knife, first fold the left handle 2 and the right handle 3, and the blade 1 is folded into the left handle 2 and the right handle 3. Inside the right handle 3, push the retractable locking block 4 to slide it horizontally. The locking pin 9 leaves the positioning groove 11. Then rotate the retractable locking block 4 to rotate the locking pin 9 into the locking groove 10. Release the retractable locking block 4. Under the tension of the locking block spring 5, the locking pin 9 engages with the locking groove 10. When you need to open the butterfly knife, simply press the left handle 2 and the right handle 3. Under the tension of the locking block spring 5, the retractable locking block 4 will automatically rotate and move. The locking pin 9 will re-engage in the positioning groove 11, allowing the butterfly knife to be opened smoothly. The retractable locking block 4 is always hidden inside the handle, which is aesthetically pleasing. The locking operation can be achieved without using both hands, making it convenient to use. Users will not be injured by the locking mechanism, providing a good user experience.

[0024] The upper left cover 12 is installed on both the upper and lower sides of the rear of the left handle 2, and the upper right cover 13 is installed on both the upper and lower sides of the rear of the right handle 3. The sliding groove 8 and the positioning groove 11 are located on the upper left cover 13, and the snap-fit ​​groove 10 is located on the upper right cover 13, making the butterfly knife more beautiful and facilitating the installation and operation of the concealable locking block 4.

[0025] A connecting post 14 is provided between the upper right cover 13 and the rear right cover to prevent external objects from entering the right handle 3 and affecting the rotation of the retractable lock block 4.

[0026] One end of the retractable locking block 4 is provided with a mounting hole 15 for mounting one end of the locking block spring 5, which facilitates the stable connection of the retractable locking block 4.

[0027] The left handle 2 is provided with a mounting post 16 for mounting the other end of the locking block spring 5, which facilitates a stable connection of the concealable locking block 4.

[0028] Several anti-slip operating grooves 17 are provided on the outer side of one end of the concealable locking block 4, making the movement and rotation of the concealable locking block 4 more stable.

[0029] The sliding protrusion 6 is elongated, and the sliding groove 8 is elongated, which facilitates the stable movement of the concealable locking block 4.

[0030] Both the left handle 2 and the right handle 3 are equipped with abutment posts 18, and the blade 1 is equipped with abutment grooves 19 corresponding to the abutment posts 18, which restrict the folding position of the left handle 2 and the right handle 3, making the butterfly knife more stable after folding and smoother to open.

[0031] Both the left handle 2 and the right handle 3 are provided with opening and closing operation slots 20 to facilitate stable opening and closing operations of the left handle 2 and the right handle 3.

[0032] Front top covers 21 are installed on the upper and lower sides of the front of the left handle 2 and the upper and lower sides of the front of the right handle 3 to prevent external objects from contacting the hinge and to make the butterfly knife more aesthetically pleasing.

[0033] 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 novel locking mechanism for a butterfly knife, characterized in that: The device includes a blade, with a left handle and a right handle hinged to the left and right sides of the rear of the blade, respectively. A retractable locking block is installed on the rear side of the left handle, and a locking block spring connected to the retractable locking block is installed on the inner side of the left handle. The locking block spring pulls the retractable locking block tight. One end of the retractable locking block has a sliding protrusion, and the sliding protrusion has a rotating protrusion. The left handle has a sliding groove corresponding to the sliding protrusion. The other end of the retractable locking block has a locking pin. The rear side of the right handle has a locking groove corresponding to the locking pin, and the rear end of the right handle has a positioning groove for positioning the locking pin.

2. The novel locking mechanism of the butterfly knife according to claim 1, characterized in that: The left handle has a rear left upper cover installed on both the upper and lower sides of the rear part, and the right handle has a rear right upper cover installed on both the upper and lower sides of the rear part. The sliding groove and the positioning groove are located on the rear left upper cover, and the snap-fit ​​groove is located on the rear right upper cover.

3. The novel locking mechanism of the butterfly knife according to claim 2, characterized in that: A connecting post is provided between the upper right rear cover and the rear right cover.

4. The novel locking mechanism of the butterfly knife according to claim 1, characterized in that: One end of the retractable locking block is provided with a mounting hole for mounting one end of the locking block spring.

5. The novel locking mechanism of the butterfly knife according to claim 1, characterized in that: The left handle is provided with a mounting post for mounting the other end of the locking block spring.

6. The novel locking mechanism of the butterfly knife according to claim 1, characterized in that: The outer side of one end of the retractable locking block is provided with several anti-slip operating grooves.

7. The novel locking mechanism of the butterfly knife according to claim 1, characterized in that: The sliding protrusion is elongated, and the sliding groove is elongated.

8. The novel locking mechanism of the butterfly knife according to claim 1, characterized in that: Both the left and right handles are provided with abutment posts, and the blade is provided with abutment grooves corresponding to the abutment posts.

9. The novel locking mechanism of the butterfly knife according to claim 1, characterized in that: Both the left and right handles are equipped with opening and closing operation slots.

10. The novel locking mechanism of the butterfly knife according to claim 1, characterized in that: Front top covers are installed on the upper and lower sides of the front of the left handle and the upper and lower sides of the front of the right handle.

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