Folding knife

Abstract

The utility model belongs to the technical field of cutters, and discloses a folding knife which comprises a knife body and a knife head. The knife body comprises two knife handles which are parallel to each other and are arranged at an interval; one end of the cutter head extends between the two cutter handles, the cutter head comprises a blade mounting body and a blade, the blade is detachably connected with the blade mounting body, the blade mounting body is hinged to the two cutter handles through an adjusting mechanism, a first limiting part is formed on the blade mounting body, and the adjusting mechanism is provided with a second limiting part. The second limiting part can move close to or away from the first limiting part; and when the second limiting part is far away from the first limiting part, the tool bit is rotated, after the tool bit is rotated by an angle, adjustment on the adjusting mechanism is removed, and the first limiting part and the second limiting part are arranged in a matched mode so that the adjusting mechanism can lock and fix the tool bit. The folding knife is simple in structure, low in manufacturing cost and convenient to operate.

Description

Folding knife Technical Field

[0001] This utility model relates to the field of cutting tool technology, and in particular to a folding knife. Background Technology

[0002] A folding knife is a type of knife that can be folded, and is widely used due to its convenient storage and ingenious structure. A folding knife typically consists of a housing and a blade or saw blade attached to it; the housing can also serve as a handle. One end of the blade or saw blade is pivotally connected to the housing and can move between a stored position and an unfolded position. When not in use, the blade can be pressed into the housing; when the blade is in the unfolded position, it can be used for cutting.

[0003] Existing folding knives typically have a locking mechanism to lock the blade when folding or unfolding. However, the locking mechanism's unlocking button and pivot structure are often set as two components, which is complex, increases mold investment, and thus increases processing and manufacturing costs.

[0004] Therefore, there is an urgent need for a folding knife to solve the above-mentioned technical problems. Summary of the Invention

[0005] The purpose of this utility model is to provide a folding knife that solves the problem that the locking mechanism of existing folding knives has a complex structure and increased manufacturing costs because the unlocking button and pivot are set as two separate parts. The folding knife of this utility model has a simple structure, low manufacturing cost, and is easy to operate.

[0006] To achieve this objective, the present invention adopts the following technical solution:

[0007] A folding knife, comprising:

[0008] The blade includes two parallel and spaced-apart handles;

[0009] The cutting head has one end extending between the two knife handles. The cutting head includes a blade mounting body and a blade. The blade and the blade mounting body are detachably connected. The blade mounting body is hinged to the two knife handles via an adjustment mechanism. The blade mounting body has a first limiting part, and the adjustment mechanism has a second limiting part. Adjusting the adjustment mechanism allows the second limiting part to move closer to or further away from the first limiting part. When the second limiting part moves away from the first limiting part, the cutting head is rotated. After the cutting head rotates by an angle, the adjustment of the adjustment mechanism is removed. The first limiting part and the second limiting part are configured to cooperate so that the adjustment mechanism can lock and fix the cutting head.

[0010] In some possible implementations, the adjustment mechanism includes a rotating shaft, a button located at one end of the rotating shaft and connected to the rotating shaft, a locking member located at the other end of the rotating shaft and connected to the rotating shaft, and an elastic member, wherein the second limiting portion is disposed on the locking member;

[0011] One of the first limiting part and the second limiting part is in the shape of a hole or a groove, and the other is in the shape of a column;

[0012] When the button is pressed, the locking member moves synchronously, and when the pressure on the button is released, the elastic member causes the button to return to its original position.

[0013] In some possible implementations, the locking member has a protruding support post, which constitutes the second limiting part. One of the knife handles has a sliding hole corresponding to the support post, and the blade mounting body has a plurality of slots corresponding to the sliding hole, which constitute the first limiting part.

[0014] In some possible implementations, there are two support columns, which are symmetrically arranged on the central axis of the locking member. There are two sliding holes and multiple sets of slots. Each set of slots includes two symmetrically arranged slots, and each set of slots corresponds to two sliding holes.

[0015] In some possible implementations, the slots are provided in four sets, corresponding to rotation angles of 0°, 45°, 90° and 180° of the cutter head, respectively.

[0016] In some possible implementations, the elastic element is sleeved on the outer periphery of the rotating shaft, the button slides through one of the knife handles, one end of the elastic element abuts against the button, and the other end abuts against the knife handle; when the button is pressed, the elastic element is compressed.

[0017] In some possible implementations, the folding knife further includes a rear cover mounted on one of the handles and having a receiving groove for accommodating the locking member.

[0018] In some possible implementations, the elastic element is disposed between the bottom of the receiving groove and the locking element, one end of the elastic element abuts against the locking element, and the other end of the elastic element is connected to the back cover; when the button is pressed, the locking element moves closer to the back cover, and the elastic element is compressed.

[0019] In some possible implementations, the back cover includes a groove structure and a connecting ring disposed on the outer peripheral end face of the groove structure. The receiving groove is recessed within the groove structure, and the connecting ring is received within the connecting groove of the tool holder and connected to the tool holder via a threaded connection.

[0020] In some possible implementations, the button has a cylindrical structure, the rotating shaft is connected to one end face of the cylindrical structure, and the other end face of the cylindrical structure is provided with an arc-shaped groove; the adjustment mechanism further includes a guide structure, the guide structure including a guide post and a guide hole that cooperate with each other, the guide post is disposed on the button, and the guide hole is disposed on the knife handle through which the button slides; or, the guide post is disposed on the knife handle through which the button slides, and the guide hole is disposed on the button.

[0021] The beneficial effects of this utility model are:

[0022] The folding knife provided by this utility model is provided with a first limiting part, a second limiting part, and an adjustment mechanism. By adjusting the adjustment mechanism, the second limiting part can move closer to or further away from the first limiting part. When the second limiting part moves away from the first limiting part, the blade head is rotated. After the blade head rotates by an angle, the adjustment mechanism is removed. The first limiting part and the second limiting part are configured to cooperate so that the adjustment mechanism can lock and fix the blade head, making operation convenient. The first limiting part is set on the blade mounting body, which simplifies the adjustment mechanism and reduces manufacturing costs. Attached Figure Description

[0023] Figure 1 is a schematic diagram of the overall structure of the folding knife provided in an embodiment of the present invention;

[0024] Figure 2 is a schematic diagram of the adjustment mechanism provided in an embodiment of the present invention;

[0025] Figure 3 is a structural schematic diagram of the locking component provided in an embodiment of the present utility model;

[0026] Figure 4 is a structural schematic diagram of the back cover provided in an embodiment of the present utility model;

[0027] Figure 5 is a schematic diagram of the support column passing through the sliding hole according to an embodiment of the present invention;

[0028] Figure 6 is a schematic diagram of the cutter head provided in an embodiment of the present invention;

[0029] Figure 7 is a schematic diagram of the cooperation between the support column, the cutter head, and the cutter handle provided in the embodiment of this utility model.

[0030] In the picture:

[0031] 100. Blade; 110. Handle; 120. Fixing component; 130. Sliding hole; 140. Limiting hole; 200. Blade tip; 210. Slot; 300. Adjustment mechanism; 310. Rotating shaft; 320. Button; 321. Arc-shaped groove; 331. Locking component; 3311. Support column; 3312. Abutting groove; 332. Back cover; 3321. Groove structure; 3322. Connecting ring. Detailed Implementation

[0032] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.

[0033] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0034] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0035] In the description of this embodiment, the terms "upper," "lower," "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0036] As shown in Figures 1 to 7, this embodiment provides a folding knife, which includes a blade 100 and a blade head 200. The blade 100 includes two parallel and spaced-apart handles 110. The two handles 110 can be connected by a fastener 120. Exemplarily, the fastener 120 can be a strip-shaped structure, with both sides of the strip-shaped structure connected to the two handles 110 by threaded parts; alternatively, the fastener 120 can also be a threaded part. One end of the cutting head 200 extends between the two handles 110. The cutting head 200 includes a blade mounting body and a blade. The blade and the blade mounting body are detachably connected. The blade mounting body is hinged to the two handles 110 via an adjusting mechanism 300. The blade mounting body has a first limiting part, and the adjusting mechanism 300 has a second limiting part. Adjusting the adjusting mechanism 300 allows the second limiting part to move closer to or further away from the first limiting part. When the second limiting part moves away from the first limiting part, the cutting head 200 is rotated. After the cutting head 200 rotates by an angle, the adjustment of the adjusting mechanism 300 is removed. The first limiting part and the second limiting part are configured to lock and fix the cutting head 200 in place.

[0037] The aforementioned folding knife is provided with a first limiting part, a second limiting part, and an adjustment mechanism 300. By adjusting the adjustment mechanism 300, the second limiting part can move closer to or further away from the first limiting part. When the second limiting part moves away from the first limiting part, the blade head 200 is rotated. After the blade head 200 rotates by an angle, the adjustment of the adjustment mechanism 300 is removed. The first limiting part and the second limiting part are configured to cooperate so that the adjustment mechanism 300 can lock and fix the blade head 200, making operation convenient. The first limiting part is set on the blade mounting body, which simplifies the adjustment mechanism 300 and reduces manufacturing costs.

[0038] Optionally, the adjusting mechanism 300 includes a rotating shaft 310, a button 320 located at one end of the rotating shaft 310 and connected to it, a locking member 331 located at the other end of the rotating shaft 310 and connected to it, and an elastic member. A second limiting part is disposed on the locking member 331. When the button 320 is pressed, the locking member 331 moves synchronously. When the pressure on the button 320 is removed, the elastic member causes the button 320 to return to its original position. One of the first limiting part and the second limiting part is hole-shaped or groove-shaped, and the other is column-shaped, which can be set as needed. The button 320 and the rotating shaft 310 can be set as an integral structure, which reduces the number of mold sets during processing and simplifies the structure. The button 320, the rotating shaft 310, and the locking member 331 can be set as an integral structure, and unlocking and locking can be completed by operating the button 320 alone, simplifying the operation steps and improving the operation efficiency. In this embodiment, the elastic member can be set as a spring.

[0039] Furthermore, the locking member 331 has a protruding support post 3311, which constitutes a second limiting part. One of the knife handles 110 has a sliding hole 130 corresponding to the support post 3311, and the blade mounting body has multiple slots 210 corresponding to the sliding hole 130, which constitute a first limiting part. The support post 3311 and the slots 210 cooperate with each other. In the locked state, the support post 3311 passes through the sliding hole 130 and the slots 210 in sequence. After pressing the button 320, the rotating shaft 310 pushes the locking member 331 to move, causing the support post 3311 to disengage from the slot 210. The sliding hole 130 can limit the movement trajectory of the locking member 331 when it is pushed out by the button 320 and reset, preventing the locking member 331 from deviating.

[0040] Preferably, two support columns 3311 are provided, symmetrically arranged on the central axis of the locking member 331. Two sliding holes 130 are provided, and multiple sets of slots 210 are provided. Each set of slots 210 includes two symmetrically arranged slots 210, and each set of slots 210 corresponds to two sliding holes 130. The multiple sets of slots 210 correspond to multiple rotation angles of the cutter head 200, thereby realizing multiple adjustment positions of the cutter head 200. In this embodiment, four sets of slots 210 are provided, corresponding to rotation angles of the cutter head 200 of 0°, 45°, 90°, and 180°, respectively, to adapt to different working conditions. In other embodiments, the number of sets of slots 210 can be set to other values, such as three or five sets, as needed.

[0041] In one possible implementation, an elastic element is sleeved on the outer periphery of the rotating shaft 310, and a button 320 slides through one of the tool holders 110. One end of the elastic element abuts against the button 320, and the other end abuts against the tool holder 110. When the button 320 is pressed, the elastic element is compressed. By sleeved on the outer periphery of the rotating shaft 310, when the button 320 is released, it can quickly return to its original position under the pushing force of the elastic element, improving the flexibility of use. During assembly, the locking member 331 can be installed into one tool holder 110 first, the elastic element can be sleeved on the rotating shaft 310, and then the button 320 and the rotating shaft 310 can be installed into another tool holder 110. The rotating shaft 310 passes through the blade mounting body and is inserted or snapped into the locking member 331. For example, the end of the rotating shaft 310 away from the button 320 is inserted into the abutment groove 3312 of the locking member 331. The side wall of the rotating shaft 310 has an elastic buckle, and the side wall of the abutment groove 3312 has a locking groove that cooperates with the elastic buckle. Preferably, the two knife handles 110 are respectively provided with limiting holes 140 for limiting the two ends of the rotating shaft 310 to prevent the rotating shaft 310 from rotating.

[0042] In another possible implementation, the folding knife also includes a rear cover 332, which is mounted on one of the handles 110 and has a receiving groove for accommodating a locking member 331. The locking member 331 is received within the receiving groove to prevent damage from external forces and ensure reliable use.

[0043] Furthermore, the elastic element is disposed between the bottom of the receiving groove and the locking element 331. One end of the elastic element abuts against the locking element 331, and the other end of the elastic element is connected to the back cover 332. When the button 320 is pressed, the locking element 331 moves closer to the back cover 332, and the elastic element is compressed. When the button 320 is released, under the pushing force of the elastic element, the locking element 331, the rotating shaft 310 and the button 320 can quickly return to their original positions, making it highly efficient and flexible to use.

[0044] Optionally, the rear cover 332 includes a groove structure 3321 and a connecting ring 3322 disposed on the outer peripheral end face of the groove structure 3321. The receiving groove is recessed within the groove structure 3321, and the connecting ring 3322 is received within the connecting groove of the tool holder 110 and connected to the tool holder 110 via a threaded component. This arrangement facilitates the disassembly, replacement, or maintenance of the locking component 331 and the elastic component.

[0045] Preferably, the button 320 has a cylindrical structure, with the pivot 310 connected to one end of the cylindrical structure. The other end of the cylindrical structure is provided with an arc-shaped groove 321, which fits the human finger to improve the comfort of pressing.

[0046] Optionally, the adjustment mechanism 300 further includes a guide structure, which includes a cooperating guide post and a guide hole. The guide post is disposed on the button 320, and the guide hole is disposed on the knife handle 110 through which the button 320 slides. Alternatively, the guide post is disposed on the knife handle 110 through which the button 320 slides, and the guide hole is disposed on the button 320. The guide structure effectively improves the stability of the button 320's movement when it is pressed.

[0047] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make various obvious changes, readjustments, and substitutions without departing from the protection scope of this utility model. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A folding knife, characterized in that, include: The blade (100) includes two parallel and spaced-apart handles (110); the blade head (200) has one end extending between the two handles (110), the blade head (200) includes a blade mounting body and a blade, the blade and the blade mounting body are detachably connected, the blade mounting body is hinged to the two handles (110) by an adjustment mechanism (300), the blade mounting body has a first limiting part, the adjustment mechanism (300) has a second limiting part, adjusting the adjustment mechanism (300) allows the second limiting part to move closer to or further away from the first limiting part; when the second limiting part moves away from the first limiting part, the blade head (200) is rotated, and after the blade head (200) rotates by an angle, the adjustment of the adjustment mechanism (300) is removed, the first limiting part and the second limiting part are configured to cooperate so that the adjustment mechanism (300) can lock and fix the blade head (200).

2. The folding knife according to claim 1, characterized in that, The adjustment mechanism (300) includes a rotating shaft (310), a button (320) located at one end of the rotating shaft (310) and connected to the rotating shaft (310), a locking member (331) located at the other end of the rotating shaft (310) and connected to the rotating shaft (310), and an elastic member. The second limiting part is disposed on the locking member (331). One of the first limiting part and the second limiting part is in the shape of a hole or groove, and the other is in the shape of a column. When the button (320) is pressed, the locking member (331) moves synchronously, and the pressing on the button (320) is removed. The elastic member causes the button (320) to return to its original position.

3. The folding knife according to claim 2, characterized in that, The locking member (331) is provided with a support post (3311), which constitutes the second limiting part. One of the knife handles (110) is provided with a sliding hole (130) corresponding to the support post (3311). The blade mounting body is provided with a plurality of slots (210) corresponding to the sliding hole (130), which constitute the first limiting part.

4. The folding knife according to claim 3, characterized in that, Two support columns (3311) are provided, and the two support columns (3311) are symmetrically arranged on the central axis of the locking member (331). Two sliding holes (130) are provided, and multiple sets of slots (210) are provided. Each set of slots (210) includes two symmetrically arranged slots (210), and each set of slots (210) corresponds to two sliding holes (130).

5. The folding knife according to claim 4, characterized in that, The slot (210) is provided in four sets, corresponding to the rotation angles of the cutter head (200) as 0°, 45°, 90° and 180° respectively.

6. The folding knife according to any one of claims 2 to 5, characterized in that, The elastic element is sleeved on the outer periphery of the rotating shaft (310), and the button (320) slides through one of the knife handles (110). One end of the elastic element abuts against the button (320) and the other end abuts against the knife handle (110). When the button (320) is pressed, the elastic element is compressed.

7. The folding knife according to any one of claims 2 to 5, characterized in that, The folding knife also includes a rear cover (332) which is mounted on one of the handles (110) and has a receiving groove for receiving the locking member (331).

8. The folding knife according to claim 7, characterized in that, The elastic element is disposed between the bottom of the receiving groove and the locking element (331). One end of the elastic element abuts against the locking element (331), and the other end of the elastic element is connected to the rear cover (332). When the button (320) is pressed, the locking element (331) moves closer to the rear cover (332), and the elastic element is compressed.

9. The folding knife according to claim 7, characterized in that, The rear cover (332) includes a groove structure (3321) and a connecting ring (3322) disposed on the outer peripheral end face of the groove structure (3321). The receiving groove is recessed in the groove structure (3321), and the connecting ring (3322) is received in the connecting groove of the knife handle (110) and connected to the knife handle (110) through a threaded component.

10. The folding knife according to claim 2, characterized in that, The button (320) has a cylindrical structure, and the rotating shaft (310) is connected to one end face of the cylindrical structure. The other end face of the cylindrical structure is provided with an arc-shaped groove (321). The adjustment mechanism (300) also includes a guide structure, which includes a guide post and a guide hole that cooperate with each other. The guide post is disposed on the button (320), and the guide hole is disposed on the knife handle (110) through which the button (320) slides. Alternatively, the guide post is disposed on the knife handle (110) through which the button (320) slides, and the guide hole is disposed on the button (320).

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