Multi-locking type pocket knife

By designing a multi-locking structure in the pocket knife and adopting a combined locking mechanism of the first dorsal bone and locking piece, the existing pocket knife is easily closed accidentally and inconvenient to operate, achieving higher safety and convenience.

CN222818958UActive Publication Date: 2025-05-02陈正林
View PDF 0 Cites 0 Cited by

Patent Information

Application Number
CN202421816259.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-07-30
Publication Date
2025-05-02
Estimated Expiration
2034-07-30

AI Technical Summary

Technical Problem

The existing pocket knife is prone to accidentally closing, causing the user to be injured and unable to complete the operation with one hand.

Method used

A multi-locking pocket knife is designed, and two independent locking mechanisms are adopted, the first back bone and locking piece are installed and fixed by screws, so as to achieve stable locking and flexible opening and closing of the blade.

Benefits of technology

It effectively prevents damage caused by accidental closing of the tool, and allows one-handed operation, improving the convenience and safety of use.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN222818958U_ABST
    Figure CN222818958U_ABST
Patent Text Reader

Abstract

The utility model provides a multi-locking type pocket knife, which relates to the technical field of pocket knives, and comprises a knife edge body, a first knife handle piece, a second knife handle piece, a first back bone, a second back bone, a locking piece, a main shaft gasket, a first stopping nail, a second stopping nail, two main shaft screw gaskets, a first main shaft screw and a second main shaft screw, the first back rib, the second back rib and the locking plate are installed on the cutter in a separated or combined mode to be used, the cutter can be provided with two independent locking mechanisms, the two locking mechanisms can be assembled at the same time, and therefore the cutter can be conveniently assembled and disassembled. The locking mechanism of the cutter can be assembled or disassembled independently, a user can assemble, disassemble and combine the locking mechanism of the cutter according to different cutter using situations, only one screwdriver is needed for assembling and disassembling tools, the machining technology of added parts is simple, and cost is low.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] The utility model relates to the technical field of pocket knives, in particular to a multi-locking pocket knife. Background Art

[0002] Folding knives have become a common tool in people's daily lives, bringing many conveniences to people's lives. Among the styles of folding knives on the market, there is a type called pocket knife, which is characterized in that the locking force of the blade is provided by a spine set at the back of the knife. The spine is a slightly curved elastic metal, and the blade is fixed by the spring force of this spine.

[0003] The inventor found in his daily work that pocket folding knives generally have two disadvantages. First, the blade body is fixed by the elastic force of the spine. Therefore, if the downward force on the back of the blade is too large during use, the blade will be unlocked, which may injure the hand holding the knife. Second, the mainstream product on the market now is the quick-opening folding knife, which is a folding knife that can be opened and closed quickly with one hand. The pocket folding knife must be operated with both hands to complete the opening and closing of the knife. Utility Model Content

[0004] The utility model aims to solve the shortcomings of the prior art that pocket knives are easily mistakenly closed, causing injuries to users, and cannot be operated with one hand, and proposes a multi-locking pocket knife.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a pocket knife with a multi-locking shape, comprising a blade body, a first handle piece, a second handle piece, a first spine, a second spine, a locking piece, a spindle gasket, a first stop nail, a second stop nail, two spindle screw gaskets, a first spindle screw and a second spindle screw, the first spine being fastened and installed between the first handle piece and the second handle piece by means of screws, the blade body being fixed between the first handle piece and the second handle piece by means of the first spindle screw and the second spindle screw, the spindle gasket being sleeved on the outer surface of one end of the first spindle screw between one side of the blade body and one side of the first handle piece, and the two spindle screw gaskets being respectively arranged between the outer surface of one end of the first spindle screw and one side of the first handle piece and between the outer surface of one end of the second spindle screw and one side of the second handle piece.

[0006] The effect achieved by the above components is: when the tool uses the first spine to provide locking, when the tool is in a closed state and needs to be opened, the first handle piece and the second handle piece can be held with one hand, and the back of the blade body can be pinched and pulled outward with the other hand, so that the blade body will rotate and open with the first spindle screw and the second spindle screw as the center of the circle, and when the first stop pin and the second stop pin abut against the first handle piece and the second handle piece, the blade body will be in a fully opened state, and the first spine is lifted up by the blade body and becomes a straight shape, so the first The spine will exert a downward pressure on the blade body, thereby stabilizing it in the open state, that is, locking the blade body; when you want to close the tool, hold the first handle piece and the second handle piece with one hand, and exert a downward force on the back of the blade body with the other hand. When the force is large enough, the blade body will push up the first spine to unlock it. At this time, the fingers holding the first handle piece and the second handle piece are moved away to prevent injury, and then continue to press the back of the blade body to rotate it back into the handle box. When the first stop pin and the second stop pin are against the handle, the tool is closed. At this time, the first spine also presses down the blade body, so that it cannot be rotated out of the handle box, that is, the tool is locked; when the tool is installed with the first spine and the locking plate at the same time, when the tool is in the closed state, the tool needs to be opened. At this time, the tool is equipped with two locking mechanisms, the first spine and the locking plate. Due to the pressure exerted by the first spine on the blade body, both hands must be used to pull the blade body away from the handle box. When the blade body is opened into place, the locking plate will pop up and support the lower part of the rear end of the blade body, and also provide locking force for the blade body. At this time, the tool will be very stable and can greatly prevent damage caused by accidental closing of the tool; when the tool needs to be closed, use the thumb of the knife-holding hand to press the locking plate away from the rear end of the blade body, and use the other hand to apply pressure to the back of the blade body. When the blade body is freed from the locking of the first spine, retract the thumb used to press the locking plate, and then continue to press the back of the blade body to completely retract the blade body into the handle box to complete the operation of closing the tool.

[0007] Preferably, the second spine is fastened and installed between the first handle piece and the second handle piece by means of screws, and the locking piece is fastened in a groove on one side of the second handle piece by means of screws.

[0008] The effect achieved by the above components is: when the locking plate and the second spine are installed on the tool, the locking plate provides locking for the blade body. When the tool is in a closed state, the tool needs to be opened. At this time, the locking mechanism installed on the tool is the locking plate. Use your thumb or index finger to press the first stop pin and the second stop pin, and push outward with force. The blade body will be rotated out of the tool handle box with the first spindle screw and the second spindle screw as the center of the circle and open until the first stop pin and the second stop pin press against the tool handle. At this time, the tool is in a fully open state. At this time, the locking plate is designed to be warped, so it will bounce up and press against the rear end of the blade body, thereby locking the blade; when you want to close the tool, use your thumb to press the locking plate away from the rear end of the blade body, then the blade body is unlocked, retract your thumb and let the blade rotate back into the tool handle box under the action of gravity.

[0009] Preferably, the first stop nail and the second stop nail are fastened to the reserved holes on the blade body from both sides of the blade body respectively, and the first stop nail and the second stop nail are a set of locking screws.

[0010] The effect achieved by the above components is that by arranging the first stop pin and the second stop pin, the blade body of the tool can be stopped at an appropriate position when the tool is opened or closed.

[0011] Preferably, the first spine is made of an elastic metal material, and its front end is slightly bent downward during manufacturing.

[0012] The effect achieved by the above components is that the front end of the first spine is slightly bent downward so that it can exert a pressure on the blade body, thereby locking the blade body in an open or closed state.

[0013] Preferably, the locking piece is made of an elastic metal material and is appropriately bent and raised during manufacturing.

[0014] The effect achieved by the above components is: by appropriately setting the locking plate in a bent and tilted state, when the blade body is fully opened, the locking plate will tilt up and press against the lower end of the tail of the blade body, thereby locking the blade body.

[0015] Compared with the prior art, the advantages and positive effects of the utility model are:

[0016] In the utility model, by installing the first back bone and the second back bone and the locking plate on the tool separately or in combination for use, the tool can have two independent locking mechanisms. The two sets of locking mechanisms can be equipped at the same time or separately. The user can disassemble and assemble the locking mechanisms of the tool according to different tool usage scenarios. The disassembly and assembly tool only needs a screwdriver, and the processing technology of the added parts is simple and the cost is low. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the planar structure of the first back bone of the utility model;

[0018] Figure 2 It is a schematic diagram of the planar structure of the second back bone of the utility model;

[0019] Figure 3 It is a schematic diagram of the exploded three-dimensional structure of the blade body of the utility model;

[0020] Figure 4 It is a schematic diagram of the exploded three-dimensional structure of the first handle piece of the utility model.

[0021] Legend: 1. Blade body; 2. First handle piece; 3. Second handle piece; 4. First spine; 5. Locking plate; 6. Spindle gasket; 7. First stop pin; 8. Second stop pin; 9. Spindle screw gasket; 10. First spindle screw; 11. Second spindle screw; 12. Second spine. DETAILED DESCRIPTION

[0022] Embodiment 1, as Figure 1-4As shown, a multi-locking pocket knife includes a blade body 1, a first handle piece 2, a second handle piece 3, a first spine 4, a second spine 12, a locking piece 5, a spindle gasket 6, a first stop nail 7, a second stop nail 8, two spindle screw gaskets 9, a first spindle screw 10 and a second spindle screw 11. The first spine 4 is fastened and installed between the first handle piece 2 and the second handle piece 3 by means of screws, and the blade body 1 is fixed between the first handle piece 2 and the second handle piece 3 by means of the first spindle screw 10 and the second spindle screw 11. The spindle gasket 6 is sleeved on the outer surface of one end of the first spindle screw 10 between one side of the blade body 1 and one side of the first handle piece 2, and the two spindle screw gaskets 9 are respectively arranged between the outer surface of one end of the first spindle screw 10 and the one side of the first handle piece 2 and between the outer surface of one end of the second spindle screw 11 and the one side of the second handle piece 3. When the tool is locked using the first spine 4, when the tool is in a closed state and needs to be opened, the first handle piece 2 and the second handle piece 3 can be held with one hand, and the back of the blade body 1 can be pinched and pulled outward with the other hand, so that the blade body 1 can be rotated and opened with the first spindle screw 10 and the second spindle screw 11 as the center of the circle, and when the first stop pin 7 and the second stop pin 8 are pressed against the first handle piece 2 and the second handle piece 3, the blade body 1 is in a fully opened state, and the first spine 4 is lifted up by the blade body 1 and becomes a straight shape, so the first spine 4 can The blade body 1 applies a downward pressure force to stabilize it in the open state, that is, the blade body 1 is locked; when the tool needs to be closed, hold the first handle piece 2 and the second handle piece 3 with one hand, and apply a downward force to the back of the blade body 1 with the other hand. When the force is large enough, the blade body 1 will lift the first spine 4 to unlock it. At this time, the fingers holding the first handle piece 2 and the second handle piece 3 are moved away to prevent injury, and then continue to press the back of the blade body 1 to rotate it back into the handle box. When the first stop pin 7 and the second stop pin 8 are against the handle, the tool is closed. At this time, the first spine 4 also presses the blade body 1, so that it cannot be rotated out of the handle box, that is, the tool is locked; when the tool is installed with the first spine 4 and the locking plate 5 at the same time, the tool is in the closed state and needs to be opened. At this time, the tool is equipped with two locking mechanisms, the first spine 45 and the locking plate 5. Due to the pressure exerted by the first spine 4 on the blade body 1, both hands must be used to pull the blade body 1 out of the handle box. When the blade body 1 is opened in place, the locking plate 5 will pop up and the tail end of the blade body 1 will be lowered When the knife is to be closed, the locking plate 5 is pressed away from the rear end of the blade body 1 with the thumb of the knife-holding hand, and pressure is applied to the back of the blade body 1 with the other hand. When the blade body 1 is released from the locking of the first spine 4, the thumb used to press the locking plate 5 is retracted, and then the back of the blade body 1 is continued to be pressed to completely retract the blade body 1 into the handle box to complete the operation of closing the knife.

[0023] Reference Figure 2and Figure 4 As shown, this embodiment discloses that the second spine 12 is fastened and installed between the first handle piece 2 and the second handle piece 3 by means of screws, and the locking piece 5 is fastened in a groove on one side of the second handle piece 3 by means of screws. When the tool is equipped with a locking plate 5 and a second spine 12, the locking plate 5 provides locking for the blade body 1. When the tool is in a closed state and needs to be opened, the locking mechanism of the tool is the locking plate 5. Use your thumb or index finger to press against the first stop pin 7 and the second stop pin 8 and push outward with force. The blade body 1 will be rotated out of the tool handle box with the first spindle screw 10 and the second spindle screw 11 as the center and opened until the first stop pin 7 and the second stop pin 8 press against the tool handle. At this time, the tool is in a fully open state. At this time, the locking plate 5 is designed to be warped, so it will bounce up and press against the rear end of the blade body 1, thereby locking the blade. When the tool needs to be closed, use your thumb to press the locking plate 5 away from the rear end of the blade body 1, then the blade body 1 is unlocked, and the thumb is retracted to allow the blade to be rotated back into the tool handle box under the action of gravity.

[0024] Reference Figure 3 and Figure 4 As shown, this embodiment discloses that the first stop pin 7 and the second stop pin 8 are fastened to the reserved holes on the blade body 1 from both sides of the blade body 1, and the first stop pin 7 and the second stop pin 8 are a set of locking screws. By providing the first stop pin 7 and the second stop pin 8, the blade body 1 can be stopped at an appropriate position when the tool is opened or closed.

[0025] Reference Figure 1-4 As shown, this embodiment discloses that the first spine 4 is made of a metal material with elasticity, and its front end is slightly bent downward during manufacturing. By slightly bending the front end of the first spine 4 downward, it can exert a pressure on the blade body 1, thereby locking the blade body 1 in an open or closed state.

[0026] Reference Figure 1-4 As shown, the embodiment discloses that the locking piece 5 is made of an elastic metal material and is appropriately bent and tilted during manufacturing. By appropriately setting the locking piece 5 in a bent and tilted state, when the blade body 1 is opened to the right position, the locking piece 5 will tilt and press against the lower end of the tail of the blade body 1, thereby locking the blade body 1.

[0027] Working principle: when the tool uses the first spine 4 to provide locking, when the tool is in a closed state and needs to be opened, one hand can hold the first handle piece 2 and the second handle piece 3, and the other hand can pinch the back of the blade body 1 and pull it outward, then the blade body 1 will rotate and open with the first spindle screw 10 and the second spindle screw 11 as the center of the circle, and when the first stop pin 7 and the second stop pin 8 are against the first handle piece 2 and the second handle piece 3, the blade body 1 is in a fully opened state, at this time, the first spine 4 is lifted up by the blade body 1 and becomes a straight shape, so the first spine 4 will apply a downward pressure on the blade body 1, thereby stabilizing it in the open state, that is, locking the blade body 1; when the tool is to be closed, hold the first handle piece 2 and the second handle piece 3 with one hand, and apply a downward force to the back of the blade body 1 with the other hand. When the force is large enough, the blade body 1 will lift the first spine 4 to unlock it. At this time, the fingers holding the first handle piece 2 and the second handle piece 3 are moved away to prevent injury, and then continue to press the back of the blade body 1 to rotate it back into the handle box. When the first stop pin 7 and the second stop pin 8 are against the handle, the tool is closed. At this time, the first spine 4 also presses the blade body 1, so that it cannot be rotated out of the handle box, that is, the tool is locked; when the tool is installed with the first spine 4 and the locking plate 5 at the same time, the tool is in the closed state and needs to be opened. At this time, the tool is equipped with two locking mechanisms, the first spine 45 and the locking plate 5. Due to the pressure exerted by the first spine 4 on the blade body 1, both hands must be used to pull the blade body 1 out of the handle box. When the blade body 1 is opened in place, the locking plate 5 will pop up and the tail end of the blade body 1 will be lowered When the knife is to be closed, the locking plate 5 is pressed away from the rear end of the blade body 1 with the thumb of the knife-holding hand, and pressure is applied to the back of the blade body 1 with the other hand. When the blade body 1 is released from the locking of the first spine 4, the thumb used to press the locking plate 5 is retracted, and then the back of the blade body 1 is continued to be pressed to completely retract the blade body 1 into the handle box to complete the operation of closing the knife. When the tool is equipped with a locking plate 5 and a second spine 12, the locking plate 5 provides locking for the blade body 1. When the tool is in a closed state and needs to be opened, the locking mechanism of the tool is the locking plate 5. Use your thumb or index finger to press against the first stop pin 7 and the second stop pin 8 and push outward with force. The blade body 1 will be rotated out of the tool handle box with the first spindle screw 10 and the second spindle screw 11 as the center and opened until the first stop pin 7 and the second stop pin 8 press against the tool handle. At this time, the tool is in a fully open state. At this time, the locking plate 5 is designed to be warped, so it will bounce up and press against the rear end of the blade body 1, thereby locking the blade. When the tool needs to be closed, use your thumb to press the locking plate 5 away from the rear end of the blade body 1, then the blade body 1 is unlocked, and the thumb is retracted to allow the blade to be rotated back into the tool handle box under the action of gravity.

Claims

1. A multi-locking pocket knife, comprising a blade body (1), a first handle piece (2), a second handle piece (3), a first back bone (4), a second back bone (12), a locking piece (5), a spindle washer (6), a first stop nail (7), a second stop nail (8), two spindle screw washers (9), a first spindle screw (10) and a second spindle screw (11), characterized in that: The first spine (4) is fastened and installed between the first handle piece (2) and the second handle piece (3) by means of screws; the blade body (1) is fixed between the first handle piece (2) and the second handle piece (3) by means of a first spindle screw (10) and a second spindle screw (11); the spindle gasket (6) is sleeved on the outer surface of one end of the first spindle screw (10) between one side of the blade body (1) and one side of the first handle piece (2); the two spindle screw gaskets (9) are respectively arranged between the outer surface of one end of the first spindle screw (10) and the one side of the first handle piece (2) and between the outer surface of one end of the second spindle screw (11) and the one side of the second handle piece (3).

2. A multi-locking pocket knife according to claim 1, characterized in that: The second spine (12) is fastened and installed between the first handle piece (2) and the second handle piece (3) by means of screws, and the locking piece (5) is fastened in a groove on one side of the second handle piece (3) by means of screws.

3. A multi-locking pocket knife according to claim 1, characterized in that: The first stop pin (7) and the second stop pin (8) are respectively fastened to the reserved holes on the blade body (1) from both sides of the blade body (1); the first stop pin (7) and the second stop pin (8) are a set of locking screws.

4. A multi-locking pocket knife according to claim 1, characterized in that: The first spine (4) is made of an elastic metal material, and its front end is slightly bent downward during manufacturing.

5. A multi-locking pocket knife according to claim 1, characterized in that: The locking piece (5) is made of a metal material having elasticity and is appropriately bent and raised during manufacturing.