Folding knife with telescopic locking structure

Abstract

A folding knife with a telescopic locking structure comprises a handle, a knife body, a guide post, a guide groove, a locking block and a locking groove, wherein the guide post is arranged on either the handle or the knife body, the guide groove is arranged on the other, the guide post is rotatably connected to the guide groove and can move along the guide groove, so that the handle and the knife body are rotatably and telescopically connected together, the locking block is arranged on either the handle or the knife body, the locking groove is arranged on the other, and the locking block can be clamped on the locking groove to lock the rotation of the knife body through the upward and downward extension of the knife body. In the utility model, the locking and unlocking of the knife body are both achieved by the upward and downward extension of the knife body, and the structure has the characteristics of simple and convenient operation, and the knife body is not subjected to the top pressure of other forces when rotating and opening and closing, which can greatly improve the smoothness of the operation of the knife body and achieve the effect of labor saving, thereby avoiding excessive force when opening and closing the knife body to cut the hand and improve the safety of operation.

Description

Technical Field

[0001] The utility model relates to the technical field of knives, in particular to a folding knife with a telescopic locking structure. Background Art

[0002] A folding knife is a pocket knife that can be folded into a handle, and is easy to store and carry. Most existing folding knives are equipped with a locking structure, which can prevent injuries to the human body caused by misoperation when using the folding knife.

[0003] The commonly used locking structure is a top plate structure, which is set in the handle and pressed against the blade, and the blade is locked by the force applied by the top plate. This locking structure makes the opening and closing of the blade extremely laborious and unsmooth, affecting the user's experience, and it is easy to cut the hand if too much force is applied, which is low in safety. Utility Model Content

[0004] In order to solve the above technical problems, the utility model provides a folding knife with a telescopic locking structure. The locking operation of the folding knife is simple and convenient, and the opening and closing of the knife body is labor-saving and smooth, which can avoid cutting hands due to excessive force when opening and closing the knife body, and has high safety.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a folding knife with a telescopic locking structure, comprising a handle, a knife body, a guide column, a guide groove, a locking block and a locking groove, wherein the guide column is arranged on any one of the handle and the knife body, and the guide groove is arranged on the other of the handle and the knife body, the guide column is rotatably connected to the guide groove and can move along the guide groove, so that the handle and the knife body are rotatably and telescopically connected together, the locking block is arranged on any one of the handle and the knife body, and the locking groove is arranged on the other of the handle and the knife body, and the locking block can be clamped on the locking groove to lock the rotation of the knife body through the upward and downward telescopic movement of the knife body.

[0006] As a further improvement of the utility model, a locking structure is further included. The locking structure is arranged on the knife handle and the knife body and is used to lock the knife body so that the knife body cannot be extended or retracted up and down.

[0007] As a further improvement of the present invention, the locking structure includes a lock buckle and a buckle block, the lock buckle is rotatably arranged on the knife handle, the buckle block is arranged on the knife body, and the lock buckle can be buckled on the buckle block by rotation.

[0008] As a further improvement of the utility model, the knife body can rotate so that the buckle block abuts against the knife handle to limit the maximum rotation angle of the knife body.

[0009] As a further improvement of the present utility model, the locking structure includes a knob and a hook, the knob is rotatably arranged on the knife handle, the hook is arranged on the knife body, and a bayonet is arranged on the knob. The hook can be inserted into the knob from the bayonet and the hook can be engaged in the knob by rotating the knob.

[0010] As a further improvement of the utility model, the guide column is arranged on the top of the knife handle; and the guide groove is arranged at the tail of the knife body.

[0011] As a further improvement of the utility model, the locking groove is arranged on the knife handle, and two locking blocks are arranged, and the two locking blocks are arranged on the knife body and arranged up and down.

[0012] As a further improvement of the utility model, one of the locking blocks is arranged at the rear end of the knife body, and a window breaking tip is arranged on the locking block.

[0013] The beneficial effects of the utility model are as follows: in the utility model, the locking and unlocking of the knife body are achieved by extending and retracting the knife body upward and downward, and the structure has the characteristics of simple and convenient operation. Moreover, the knife body is not subjected to the top pressure of other forces when it is rotated to open and close, which can greatly improve the operation smoothness of the knife body and achieve the effect of labor saving, thereby avoiding excessive force when opening and closing the knife body and cutting the hands, thereby improving the safety of operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is an exploded schematic diagram of the folding knife in the first embodiment in the open state;

[0015] Figure 2 This is a three-dimensional schematic diagram of the folding knife in the first embodiment in the open state;

[0016] Figure 3 It is a cross-sectional schematic diagram of the folding knife in the first embodiment in the open state;

[0017] Figure 4 This is a three-dimensional schematic diagram of the folding knife in the folded state of the first embodiment;

[0018] Figure 5 It is a cross-sectional schematic diagram of the folding knife in the folded state of the first embodiment;

[0019] Figure 6 This is a three-dimensional schematic diagram of the folding knife in the second embodiment in the open state;

[0020] Figure 7 This is a three-dimensional schematic diagram of the folding knife in the folded state of the second embodiment;

[0021] Marking description: knife handle 1, knife body 2, guide column 3, guide groove 4, locking block 5, locking groove 6, locking buckle 7, buckle block 8, window breaking tip 9, knob 10, hook 11, bayonet 12. DETAILED DESCRIPTION

[0022] The utility model is further described below in conjunction with the accompanying drawings and specific embodiments.

[0023] Embodiment 1:

[0024] like Figure 1-5 As shown, a folding knife with a telescopic locking structure includes a handle 1, a knife body 2, a guide column 3, a guide groove 4, a locking block 5 and a locking groove 6.

[0025] The guide groove 4 adopts a straight groove structure, is arranged at the tail of the blade body 2, and the direction of the guide groove 4 is arranged along the length direction of the blade body 2. The guide post 3 adopts a cylindrical structure, and is arranged at the top of the handle 1. The guide groove 4 adopts a straight groove structure adapted to the guide post 3, is arranged at the tail of the blade body 2, and the direction of the guide groove 4 is arranged along the length direction of the blade body 2. The guide post 3 is rotatably connected to the guide groove 4, and the guide post 3 can move along the direction of the guide groove 4, so that the handle 1 and the blade body 2 can be telescopically connected up and down and can be rotatably connected together. In other embodiments, the guide groove 4 can also be arranged on the handle 1, and the guide post 3 is arranged on the blade body 2.

[0026] Two locking blocks 5 are provided, and both locking blocks 5 are provided on the blade body 2 and are respectively located at the upper and lower sides of the guide groove 4. The locking groove 6 is provided on the handle 1, and the locking block 5 can be clamped on the locking groove 6 to lock the rotation of the blade body 2 through the upward and downward extension of the blade body 2. In other embodiments, two locking grooves 6 can also be provided on the blade body 2 and are respectively located at the upper and lower sides of the guide groove 4, while only one locking block 5 is provided on the handle 1.

[0027] The folding knife with the above structure can realize folding and opening between the blade body 2 and the handle 1 by rotating the blade body 2, and can realize locking and unlocking of the blade body 2 by extending and retracting the blade body 2 up and down. When the blade body 2 is rotated to the folded state, the blade body 2 is moved downward so that one of the locking blocks 5 on the blade body 2 is engaged with the locking groove 6, thereby locking the rotation of the blade body 2 to prevent the blade body 2 from opening by mistake; when the blade body 2 is rotated to the open state, the blade body 2 is moved downward so that the other locking block 5 on the blade body 2 is engaged with the locking groove 6, thereby locking the rotation of the blade body 2 to prevent the blade body 2 from folding by mistake when in use; when it is necessary to unlock, it is only necessary to move the blade body 2 upward so that the locking block 5 is disengaged from the locking groove 6 to realize unlocking of the blade body 2, and the operation is simple and convenient.

[0028] Furthermore, it also includes a locking structure, which is arranged on the handle 1 and the blade body 2, and is used to lock the blade body 2 so that the blade body 2 cannot be extended up and down. In this embodiment, the locking structure includes a lock buckle 7 and a buckle block 8, the lock buckle 7 is rotatably arranged on the handle 1, and the buckle blocks 8 are respectively arranged on the left and right sides of the blade body 2, and the buckle blocks 8 on the left and right sides are staggered up and down. When the folding knife is in a folded state or an open state, the lock buckle 7 can be buckled on the buckle block 8 by rotation, thereby locking the blade body 2 so that it cannot be extended up and down. When the blade body 2 is opened or folded, the blade body 2 is first locked by rotation by extending up and down, and then locked by telescopic locking by buckling the lock buckle 7. The combination of rotation locking and telescopic locking can realize the locking of the blade body 2 more safely and firmly, and prevent the blade body 2 from moving upward due to excessive force during use, resulting in the release of the rotation lock of the blade body 2.

[0029] Furthermore, when the blade body 2 is in the open state, one of the buckle blocks 8 can lean against the blade handle 1 to prevent the blade body 2 from further rotating, thereby limiting the maximum rotation angle of the blade body 2 .

[0030] Furthermore, one of the locking blocks 5 is arranged on the side wall of the rear end of the blade body 2. When the blade body 2 is folded on the handle 1, the locking block 5 is protruded outward. A window-breaking tip 9 is arranged on the locking block 5. The locking block 5 and the window-breaking tip 9 are combined so that the locking block 5 not only plays a locking role, but also plays a role of a window-breaking hammer. In an emergency, the window-breaking tip 9 on the folding knife can be used to smash the car window for escape.

[0031] Embodiment 2:

[0032] The difference between the second embodiment and the first embodiment lies in the locking structure: Figure 6 , 7 As shown, the locking structure includes a knob 10 and a hook 11. The knob 10 is rotatably arranged on the handle 1 by means of a screw. The hooks 11 are respectively arranged on the left and right sides of the knife body 2, and the hooks 11 on the left and right sides are arranged alternately up and down. A bayonet 12 is arranged on the knob 10. When the folding knife is in a folded state or an opened state, the knife body 2 is moved downward, and the hook 11 penetrates into the knob 10 from the bayonet 12, and then the knob 10 is rotated so that the hook 11 is staggered with the bayonet 12. At this time, the hook 11 cannot penetrate from the bayonet 12 and is engaged in the knob 10, thereby realizing the upward and downward telescopic locking of the knife body 2. When the upward and downward telescopic locking is to be released, it is only necessary to rotate the knob 10 so that the hook 11 is aligned with the bayonet 12, and at this time, the hook 11 can penetrate from the bayonet 12.

[0033] Except for the above, other parts of the second embodiment are the same as those of the first embodiment, so they are not described in detail.

[0034] The above embodiments are only used to illustrate the present invention and are not intended to limit the present invention in any form. Any person with ordinary knowledge in the technical field may make partial changes or modifications to the technical contents disclosed in the present invention without departing from the scope of the technical features of the present invention, and the equivalent embodiments without departing from the technical features of the present invention are still within the scope of the technical features of the present invention.

Claims

1. A folding knife with a telescopic locking structure, comprising a handle and a knife body, characterized in that: It also includes a guide column, a guide groove, a locking block and a locking groove, wherein the guide column is arranged on either the knife handle or the knife body, and the guide groove is arranged on the other of the knife handle and the knife body. The guide column is rotatably connected to the guide groove and can move along the guide groove, so that the knife handle and the knife body are rotatably and telescopically connected together, the locking block is arranged on either the knife handle or the knife body, and the locking groove is arranged on the other of the knife handle and the knife body. Through the upward and downward telescopic movement of the knife body, the locking block can be clamped on the locking groove to lock the rotation of the knife body.

2. A folding knife with a telescopic locking structure according to claim 1, characterized in that: It also includes a locking structure, which is arranged on the knife handle and the knife body and is used to lock the knife body so that the knife body cannot be extended or retracted up and down.

3. A folding knife with a telescopic locking structure according to claim 2, characterized in that: The locking structure comprises a lock buckle and a buckle block, wherein the lock buckle is rotatably arranged on the knife handle, and the buckle block is arranged on the knife body, and the lock buckle can be buckled on the buckle block by rotating.

4. The folding knife with a telescopic locking structure according to claim 3, characterized in that: The knife body can rotate so that the buckle block can be pressed against the knife handle to limit the maximum rotation angle of the knife body.

5. The folding knife with a telescopic locking structure according to claim 2, characterized in that: The locking structure comprises a knob and a hook, wherein the knob is rotatably arranged on the knife handle, the hook is arranged on the knife body, and a bayonet is arranged on the knob, the hook can be inserted into the knob through the bayonet and the hook can be engaged in the knob by rotating the knob.

6. The folding knife with a telescopic locking structure according to claim 1, characterized in that: The guide column is arranged on the top of the knife handle; and the guide groove is arranged on the tail of the knife body.

7. A folding knife with a telescopic locking structure according to claim 1 or 6, characterized in that: The locking groove is arranged on the knife handle, and two locking blocks are arranged, and the two locking blocks are arranged on the knife body and arranged up and down.

8. The folding knife with a telescopic locking structure according to claim 7, characterized in that: One of the locking blocks is arranged at the rear end of the knife body, and a window breaking tip is arranged on the locking block.

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