CN218614195U

CN218614195U - Folding knife convenient for replacing blade

Info

Publication number: CN218614195U
Application number: CN202223154528.3U
Authority: CN
Inventors: 许立求
Original assignee: Shenzhen Aoyang Technology Co ltd
Current assignee: Shenzhen Aobai Technology Co Ltd
Priority date: 2022-11-28
Filing date: 2022-11-28
Publication date: 2023-03-14
Anticipated expiration: 2032-11-28

Abstract

The utility model belongs to the cutter field especially relates to a folding knife convenient to change blade. The tool comprises a tool handle, wherein one end of the tool handle is rotatably connected with a tool blade holder, the tool blade holder can be rotated into the tool handle, a tool blade mounting position is arranged in the tool blade holder, and an opening of the tool blade mounting position faces a direction far away from a rotating end of the tool blade holder; the blade comprises a blade body and a mounting part connected to the blade body, the mounting part is mounted in a blade mounting position, the mounting part is provided with a barb part, and the blade mounting position is provided with a barb groove for accommodating the barb part; the locking mechanism is movably arranged on the blade frame, and the locking mechanism can fall into the blade mounting position to be abutted with the mounting part so that the mounting part is limited in the blade mounting position, or is separated from the mounting part so that the blade can be taken out from the blade mounting position. The utility model discloses can realize dismantling the blade of installing on the blade frame through unblock locking mechanism, have the advantage that can make things convenient for, swiftly, change the blade safely.

Description

Folding knife convenient for replacing blade

Technical Field

The utility model belongs to the cutter field especially relates to a folding sword convenient to change blade.

Background

Folding sword is a pocket cutter that can fold the embedding handle of a knife with the blade, has the advantage of being convenient for accomodate and carry, and the blade of common folding sword passes through the articulated installation of screw main shaft on the handle of a knife, and the blade is sharp after repetitious usage can only be polished again, if need change the blade, need dismantle screw and handle of a knife and just can change, and is comparatively inconvenient, and factor of safety is low.

Therefore, a need exists for a folding knife that allows for convenient, quick, and safe blade replacement.

Disclosure of Invention

An object of the utility model is to prior art not enough, provide a folding sword convenient to change blade, can realize dismantling the blade of installing on the blade frame through unblock locking mechanism, have convenient, swift, safe advantage.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a folding knife for facilitating blade replacement comprising:

the tool comprises a tool handle, wherein one end of the tool handle is rotatably connected with a tool holder, the tool holder can be rotated into the tool handle, a tool blade mounting position is arranged in the tool blade holder, and an opening of the tool blade mounting position faces to a direction far away from a rotating end of the tool blade holder;

the blade comprises a blade body and a mounting part connected to the blade body, the mounting part is mounted in the blade mounting position, the mounting part is provided with a barb part, and the blade mounting position is provided with a barb groove for accommodating the barb part;

the locking mechanism can fall into the blade mounting position and abut against the mounting part to limit the mounting part in the blade mounting position, or can be separated from the mounting part to enable the blade to be taken out of the blade mounting position;

the blade holder is provided with a through hole which penetrates from one side of the blade holder to the other side of the blade holder, the locking mechanism is installed in the through hole and can move in the through hole, and a part of the through hole is connected to the blade installation position.

Further, locking mechanism including install in locking lever subassembly and first spring in the through-hole, first spring supports locking lever subassembly, locking lever subassembly supports the installation department, works as locking lever subassembly toward breaking away from when the direction of installation department removed, first spring is compressed.

Further, locking lever subassembly includes locking button and is connected to be used for the butt on the locking button the slide bar of installation department, the slide bar is kept away from locking button's one end is provided with the locating part, the cover is equipped with the second spring just on the slide bar the second spring is located locking button with between the blade frame, the blade frame is close to the through-hole is equipped with the spacing groove, the spacing groove with the locating part is located same one side of blade frame, works as the slide bar butt during the installation department, the second spring makes the locating part fall into in the spacing groove.

Furthermore, a rotating position is formed between the opening end of the blade mounting position and the barb groove, a rotating groove is formed in the mounting portion close to the barb portion, and the blade is mounted in the blade holder or taken out of the blade holder in a mode that the rotating groove is close to the rotating position to rotate.

Further, when the blade is installed in the blade installation position, the installation part is located between the locking mechanism and the rotation position.

Further, the blade frame include with the relative spacing section that sets up in rotatory position, the blade install in when in the blade installation position, the installation department is located spacing section with between the rotatory position, spacing section is close to the back of a knife blade of blade, locking mechanism set up in the spacing section.

Further, the blade frame includes blade frame main part and cover in blade frame apron on the blade frame main part, blade installation position is located the blade frame main part with between the blade frame apron, locking mechanism passes the blade frame apron with the blade frame main part.

Furthermore, the knife handle comprises a first handle piece and a second handle piece which are arranged in parallel side by side, the rotating shaft is arranged at one end of the first handle piece and one end of the second handle piece, and the knife blade frame is rotatably connected to the rotating shaft and is positioned between the first handle piece and the second handle piece.

Furthermore, a blade holder limiting shaft is arranged close to the rotating shaft, and when the blade holder rotates to the outside of the knife handle and forms an angle of 180 degrees with the knife handle, the blade holder is abutted against the blade holder limiting shaft.

Further, when the blade holder and the blade are rotatably received in the handle, the locking mechanism abuts against an edge of the handle.

The utility model has the advantages that:

the utility model is provided with the blade holder which can rotate relative to the handle, the blade is assembled in the blade holder in a mode that the blade is arranged in the barb groove through the barb part, and the locking mechanism is moved to change the state that whether the locking mechanism is abutted against the installation part of the blade so as to lock or unlock the blade; a state in which the lock mechanism is inclined to abut against the mounting portion of the blade by providing the first spring; by arranging the limiting piece and the limiting groove, the locking mechanism is prevented from being easily slid to cause mistaken unlocking, and under the action of the elastic force of the second spring, when the sliding rod of the locking mechanism slides to the abutting installation part, the limiting piece can automatically fall into the limiting groove, so that the safety is improved; by arranging the rotating position, the blade can be conveniently installed or detached in a way that the rotating groove is close to the rotating position when the blade is installed or detached from the blade frame; the blade holder limiting shaft is used for limiting the rotation angle of the blade holder, so that the blade is convenient to use; the utility model discloses can realize dismantling the blade of installing on the blade frame through unblock locking mechanism, have the advantage that can make things convenient for, swiftly, change the blade safely.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic diagram of the explosion structure of the present invention;

fig. 3 is a schematic structural view of the blade holder body and the blades of the present invention;

fig. 4 is a sectional view of the locking mechanism of the present invention in an unlocked state;

fig. 5 is a cross-sectional view of the locking mechanism of the present invention in a locked state;

fig. 6 is a cross-sectional view of the present invention;

fig. 7 is an enlarged view of portion a of fig. 6 of the present invention;

the labels in the figure are: 1-a knife handle, 110-a first handle sheet, 120-a second handle sheet; 2-blade holder, 210-blade mounting position, 211-barb groove, 220-through hole, 230-limit groove, 240-rotation position, 250-limit section, 260-blade holder main body and 270-blade holder cover plate; 3-blade, 310-blade body, 320-mounting part, 321-barb part and 322-rotating groove; 4-locking mechanism, 410-locking rod component, 411-locking button, 412-sliding rod, 413-limiting piece, 414-second spring and 420-first spring; 5-a rotating shaft; 6-blade holder spacing axis.

Detailed Description

Reference will now be made in detail to the embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary intended for explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, are not to be construed as limiting the invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

In the embodiments of the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," "fixed," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrated; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or may be connected through the use of two elements or the interaction of two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

Referring to fig. 1 to 7, there is shown an embodiment of a folding knife for facilitating blade replacement according to the present invention.

Referring to fig. 1 and 2, a folding knife for facilitating blade replacement includes:

the cutter comprises a cutter handle 1, wherein one end of the cutter handle 1 is rotatably connected with a blade holder 2, the blade holder 2 can be rotated into the cutter handle 1, a blade mounting position 210 is arranged in the blade holder 2, and the opening of the blade mounting position 210 faces the direction far away from the rotating end of the blade holder 2;

the blade 3, the blade 3 includes the blade body 310 and mounts department 320 connected to blade body 310, mount department 320 is mounted in blade mounting position 210, mount department 320 has barb portion 321, there are barb grooves 211 to hold barb portion 321 in the blade mounting position 210;

the locking mechanism 4 is movably arranged on the blade holder 2, and the locking mechanism 4 can fall into the blade mounting position 210 to be abutted against the mounting part 320, so that the mounting part 320 is limited in the blade mounting position 210, or can be separated from the mounting part 320, so that the blade 3 can be taken out from the blade mounting position 210.

In the above embodiment, the blade holder 2 is rotatably connected to the handle 1, the blade 3 is attached to the blade holder 2, and when the blade holder 2 is rotated into the handle 1, the blade 3 is also rotatably housed in the handle 1. The mounting portion 320 of the blade 3 is provided with the barb portion 321, and when the mounting portion 320 of the blade 3 is mounted on the blade mounting position 210, the barb portion 321 extends into the blade mounting position 210 and then is mounted corresponding to the barb groove 211 in the blade mounting position 210. When the lower blade 3 needs to be detached, the mounting portion 320 of the blade 3 can be taken out from the blade mounting position 210 only by rotating the blade 3 to make the barb portion 321 and the barb groove 211 dislocated. In order to lock the blade 3 to the blade holder 2, the blade holder 2 is provided with the locking mechanism 4, a part of the locking mechanism 4 is located on the moving path of the mounting portion 320 of the blade 3 in the blade mounting place 210, and a part of the locking mechanism 4 is located outside the moving path, and when the locking mechanism 4 is located on the moving path of the mounting portion 320, the locking mechanism abuts against the mounting portion 320, one end of the mounting portion 320 is limited by the barb groove 211, and the other end is limited by the locking mechanism 4, so that the mounting portion 320 can be locked in the blade mounting place 210, as shown in fig. 5. When the locking mechanism 4 is moved out of the path of travel of the mounting portion 320, the mounting portion 320 is no longer restrained from movement and can therefore be removed from the blade mounting location 210, as shown in FIG. 4.

Referring to fig. 3, in the above embodiment, the blade holder 2 is provided with the through hole 220 penetrating from one side to the other side of the blade holder 2, the locking mechanism 4 is installed in the through hole 220 and is movable in the through hole 220, and a part of the through hole 220 is attached to the blade mounting position 210. In the embodiment, the through hole 220 is disposed at an edge of the blade mounting portion 210, the through hole 220 is in a strip shape, the locking mechanism 4 can slide in the strip-shaped through hole 220, when a part of the locking mechanism 4 slides into the blade mounting portion 210, the mounting portion 320 of the blade 3 abuts against the locking mechanism 4, and the locking mechanism 4 abuts against a side surface of the through hole 220, so that the locking mechanism 4 does not move, and the blade 3 is also locked in the blade mounting portion 210 and cannot be taken out.

Referring to fig. 5, in the above embodiment, the locking mechanism 4 includes a locking rod assembly 410 installed in the through hole 220 and a first spring 420, the first spring 420 abuts against the locking rod assembly 410, the locking rod assembly 410 abuts against the installation part 320, and when the locking rod assembly 410 moves in a direction to be separated from the installation part 320, the first spring 420 is compressed. In the embodiment, the first spring 420 is used to make the locking rod assembly 410 always tend to abut against the mounting portion 320, when the mounting portion 320 of the blade 3 is mounted in the blade mounting position 210, the mounting portion 320 contacts the locking rod assembly 410 and the pushing direction is the same as the moving direction of the locking rod assembly 410 when the locking rod assembly 410 is unlocked, so the mounting portion 320 can push the locking rod assembly 410 to move and compress the first spring 420, when the mounting portion is mounted at a certain angle, the pushing rod assembly 410 is staggered from the mounting portion 320, the locking rod assembly 410 moves into the locking state under the elastic force of the first spring 420, at this time, if the mounting portion 320 is taken out in the opposite direction, the direction in which the mounting portion contacts and pushes the locking rod assembly 410 is different from the moving direction of the locking rod assembly 410, so the locking rod assembly 410 cannot move, and the mounting portion 320 cannot be taken out of the blade mounting position 210.

Referring to fig. 6 and 7, in the above embodiment, the locking rod assembly 410 includes a locking button 411 and a sliding rod 412 connected to the locking button 411 and used for abutting against the mounting portion 320, a limiting member 413 is disposed at an end of the sliding rod 412 away from the locking button 411, a second spring 414 is sleeved on the sliding rod 412 and located between the locking button 411 and the blade holder 2, the blade holder 2 is disposed with a limiting groove 230 near the through hole 220, the limiting groove 230 and the limiting member 413 are located at the same side of the blade holder 2, and when the sliding rod 412 abuts against the mounting portion 320, the second spring 414 makes the limiting member 413 fall into the limiting groove 230. In the embodiment, when the locking mechanism 4 is in the locking state, the second spring 414 between the locking button 411 and the blade holder 2 pushes the locking button 411, and since the locking button 411, the sliding rod 412 and the limiting member 413 are connected together, the limiting member 413 on the other side opposite to the locking button 411 tends to move closer to the blade holder 2, and due to the existence of the limiting groove 230 on the blade holder 2, the limiting member 413 falls into the limiting groove 230. When the locking mechanism 4 needs to be unlocked, the locking button 411 needs to be pressed first to disengage the limiting member 413 from the limiting groove 230, at this time, the second spring 414 is compressed, the locking button 411 is pushed along the through hole 220, and the sliding rod 412 can move along with the sliding button and disengage from the mounting portion 320 of the blade 3, so that unlocking is realized, and the problem that the blade 3 falls off due to mistaken unlocking caused by carelessly sliding the locking button 411 is avoided.

Referring to fig. 3 and 4, in the above embodiment, the rotation portion 240 is formed between the open end of the blade mounting position 210 and the barb groove 211, the mounting portion 320 is provided with the rotation groove 322 adjacent to the barb portion 321, and the blade 3 is mounted in the blade holder 2 or removed from the blade holder 2 in a manner that the rotation groove 322 rotates adjacent to the rotation portion 240. In the embodiment, the rotation groove 322 and the barb 321 on the blade 3 form an S-shaped structure, and the barb groove 211 and the rotation position 240 on the blade holder 2 form an S-shaped structure. In an embodiment, when the blade 3 is mounted in the blade mounting position 210, the mounting portion 320 is located between the locking mechanism 4 and the rotating position 240. The mounting portion 320 of the blade 3 can be restrained in the blade mounting location 210 by the locking mechanism 4, the rotary location 240 and the barb recess 211 therein.

Referring to fig. 3, in the above embodiment, the blade holder 2 includes a limiting section 250 disposed opposite to the rotation position 240, when the blade 3 is mounted in the blade mounting position 210, the mounting portion 320 is located between the limiting section 250 and the rotation position 240, the limiting section 250 is close to the back of the blade 3, and the locking mechanism 4 is disposed on the limiting section 250. In an embodiment, the end of the limiting section 250 abuts against the connection between the blade main body 310 and the mounting portion 320 on the blade 3, the rotating portion 240 abuts against the rotating groove 322 of the blade 3, and the rotating groove 322 is also the connection between the blade main body 310 and the mounting portion 320, wherein the length of the limiting section 240 is greater than the length of the rotating portion 240, and the limiting section 250 is close to the back of the blade 3, so that the stress of the blade holder 2 is more stable when the folding knife is used.

Referring to fig. 2, in the embodiment described above, the blade holder 2 includes a blade holder body 260 and a blade holder cover 270 covering the blade holder body 260, the blade mounting location 210 is located between the blade holder body 260 and the blade holder cover 270, and the locking mechanism 4 passes through the blade holder cover 270 and the blade holder body 260. In an embodiment, the blade holder 2 employs a modular design of the blade holder body 260 and the blade holder cover 270 to facilitate mounting the locking mechanism 4 into the through hole 220 of the blade holder 2.

Referring to fig. 2, in the above embodiment, the tool holder 1 includes the first handle piece 110 and the second handle piece 120 arranged in parallel side by side, the rotating shaft 5 is arranged at one end of the first handle piece 110 and the second handle piece 120, and the blade holder 2 is rotatably connected to the rotating shaft 5 and is located between the first handle piece 110 and the second handle piece 120. Be provided with spacing axle 6 of blade holder near rotation axis 5, when blade holder 2 rotated outside handle of a knife 1 and become 180 with handle of a knife 1, blade holder 2 will be with spacing axle 6 looks butt of blade holder. When the tip holder 2 and the tip 3 are rotatably housed in the holder 1, the lock mechanism 4 abuts against the edge of the holder 1. Through setting up spacing axle 6 of blade frame for the rotation angle of restriction blade frame 2, convenient to use blade 3. In an embodiment, when the blade holder 2 accommodates the blade 3 between the first handle 110 and the second handle 120, the locking button 411 and the limiting member 413 of the locking mechanism 4 on the blade holder 2 contact with an edge portion of the handle 1, so that the blade 3 is not completely accommodated in the handle 1, but the back of the knife and a part of the blade body are left outside the edge of the handle 1, which facilitates directly pinching the back of the blade 3 to rotate out of the blade holder 2 when the blade 3 needs to be opened for use.

In summary, the present embodiment provides a folding knife facilitating blade replacement, in which a blade holder 2 capable of rotating relative to a handle 1 is provided, a blade 3 is mounted in the blade holder 2 in a manner that a barb portion 321 is mounted in a barb groove 211, and the blade 3 is locked or unlocked by moving a locking mechanism 4 to change a state that whether the locking mechanism 4 abuts against a mounting portion 320 of the blade 3; a state in which the lock mechanism 4 is inclined to abut against the mounting portion 320 of the blade 3 by providing the first spring 420; by arranging the limiting piece 413 and the limiting groove 230, the locking mechanism 4 is prevented from being easily slid to cause mistaken unlocking, and under the action of the elastic force of the second spring 414, when the sliding rod 412 of the locking mechanism 4 slides to the abutting mounting part 320, the limiting piece 413 can automatically fall into the limiting groove 230, so that the safety is improved; by arranging the rotating position 240, the blade 3 can be conveniently mounted or dismounted in a manner that the rotating groove 322 is close to the rotating position 240 to rotate when the blade 3 is mounted or dismounted from the blade holder 2; the blade holder limiting shaft 6 is arranged and used for limiting the rotation angle of the blade holder 2, so that the blade 3 is convenient to use; the blade mounted on the blade holder can be detached through the unlocking and locking mechanism, and the blade holder has the advantage that the blade can be conveniently, quickly and safely replaced.

The above-mentioned embodiments are only one of the preferred embodiments of the present invention, and the general changes and substitutions performed by those skilled in the art within the technical scope of the present invention should be included in the protection scope of the present invention.

Claims

1. A folding knife for facilitating blade replacement, comprising:

the tool comprises a tool handle (1), wherein one end of the tool handle (1) is rotatably connected with a blade holder (2), the blade holder (2) can be rotated into the tool handle (1), a blade mounting position (210) is arranged in the blade holder (2), and the opening of the blade mounting position (210) faces the direction away from the rotating end of the blade holder (2);

the blade (3), the blade (3) includes a blade body (310) and a mounting part (320) connected to the blade body (310), the mounting part (320) is mounted in the blade mounting position (210), the mounting part (320) is provided with a barb part (321), and a barb groove (211) for accommodating the barb part (321) is arranged in the blade mounting position (210);

the locking mechanism (4) is movably arranged on the blade frame (2), the locking mechanism (4) can fall into the blade mounting position (210) and is abutted against the mounting part (320) so that the mounting part (320) is limited in the blade mounting position (210), or the locking mechanism is separated from the mounting part (320) so that the blade (3) can be taken out of the blade mounting position (210);

the blade holder (2) is provided with a through hole (220) penetrating from one side to the other side of the blade holder (2), the locking mechanism (4) is installed in the through hole (220) and can move in the through hole (220), and one part of the through hole (220) is connected to the blade installation position (210).

2. The folding knife convenient for blade replacement according to claim 1, wherein the locking mechanism (4) comprises a locking rod component (410) and a first spring (420) installed in the through hole (220), the first spring (420) supports the locking rod component (410), the locking rod component (410) supports the installation part (320), and when the locking rod component (410) moves in the direction of disengaging from the installation part (320), the first spring (420) is compressed.

3. The folding knife convenient for blade replacement according to claim 2, wherein the locking rod assembly (410) comprises a locking button (411) and a sliding rod (412) connected to the locking button (411) and used for abutting against the mounting portion (320), one end of the sliding rod (412) far away from the locking button (411) is provided with a limiting piece (413), the sliding rod (412) is sleeved with a second spring (414) and the second spring (414) is located between the locking button (411) and the blade holder (2), the blade holder (2) is close to the through hole (220) and provided with a limiting groove (230), the limiting groove (230) and the limiting piece (413) are located on the same side of the blade holder (2), when the sliding rod (412) abuts against the mounting portion (320), the second spring (414) enables the limiting piece (413) to fall into the limiting groove (230).

4. A folding knife for facilitating blade replacement according to claim 1, wherein a rotation portion (240) is formed between the open end of the blade mounting portion (210) and the barb groove (211), a rotation groove (322) is provided in the mounting portion (320) near the barb portion (321), and the blade (3) is mounted in the blade holder (2) or removed from the blade holder (2) in such a manner that the rotation groove (322) rotates near the rotation portion (240).

5. A folding knife to facilitate blade replacement according to claim 4, characterized in that the mounting portion (320) is located between the locking mechanism (4) and the rotary position (240) when the blade (3) is mounted in the blade mounting location (210).

6. The folding knife convenient for blade replacement according to claim 5, characterized in that the blade holder (2) comprises a limiting section (250) opposite to the rotation position (240), when the blade (3) is installed in the blade installation position (210), the installation part (320) is located between the limiting section (250) and the rotation position (240), the limiting section (250) is close to the back of the blade (3), and the locking mechanism (4) is arranged on the limiting section (250).

7. A folding knife to facilitate blade replacement according to claim 1, wherein the blade holder (2) comprises a blade holder body (260) and a blade holder cover plate (270) covering the blade holder body (260), the blade mounting location (210) is located between the blade holder body (260) and the blade holder cover plate (270), and the locking mechanism (4) passes through the blade holder cover plate (270) and the blade holder body (260).

8. The folding knife of claim 1, characterized in that the handle (1) comprises a first handle (110) and a second handle (120) arranged in parallel side by side, a rotating shaft (5) is arranged at one end of the first handle (110) and the second handle (120), and the blade holder (2) is rotatably connected to the rotating shaft (5) and is positioned between the first handle (110) and the second handle (120).

9. The folding knife convenient for blade replacement according to claim 8, characterized in that a blade holder limiting shaft (6) is arranged near the rotating shaft (5), and when the blade holder (2) rotates out of the knife handle (1) and forms an angle of 180 degrees with the knife handle (1), the blade holder (2) abuts against the blade holder limiting shaft (6).

10. A folding knife to facilitate blade replacement according to claim 1, characterized in that the locking mechanism (4) will abut the edge of the handle (1) when the blade holder (2) and the blade (3) are rotatably received in the handle (1).