CN215149300U

CN215149300U - Blade mounting bracket, replaceable blade and knife

Info

Publication number: CN215149300U
Application number: CN202120739081.2U
Authority: CN
Inventors: 陈盛
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-04-12
Filing date: 2021-04-12
Publication date: 2021-12-14
Anticipated expiration: 2031-04-12

Abstract

The utility model discloses a blade installing support, fixed part and rotation portion including rotatable coupling, form the open slot that can install the blade between fixed part and the rotation portion, fixed part and/or rotation portion have and are used for fixing the fixed position of blade. While providing a blade and knife that fits the blade mounting bracket. The utility model has the advantages that the unlocking mechanism is set to be unlocked in a manner that the unlocking mechanism can not be pressed, thereby solving the technical problem that the blade pops up due to the possible misoperation in the prior art when the blade is not required to be replaced; the blade mounting bracket is provided with only three components, has simple structure and good stability, provides various embodiments for reinforcing the fixed blade, and is suitable for various folding or non-folding cutters; the blade is replaced without involving the handle part, and the operation is convenient.

Description

Blade mounting bracket, replaceable blade and knife

Technical Field

The utility model relates to a cutting means field especially relates to a blade installing support, interchangeable blade and sword.

Background

In outdoor, field survival or some tactical scenes, the multifunctional folding knife or the tactical knife with the replaceable blade can also improve the service efficiency and the service life of the knife, so the knife with the replaceable blade has wide application prospect. In similar application scenarios, such as scalpels used in surgery, there is also a need to replace or exchange blades, and the main applications of blades that are replaceable are currently in the above scenarios.

A replaceable blade knife should at least meet the following requirements: firstly, the blade is convenient to replace, the steps are simple, and the safety of a user is ensured to the greatest extent during replacement, so that accidental cutting injury is avoided; secondly, should guarantee that the sword homoenergetic before and after the change blade can normal use, does not destroy the stability of original cutter's overall structure, and again, can have extensive suitability, promptly at the certain size within range of blade/cutter, can the blade of multiple model.

Chinese utility model patent publication No. CN103786170B discloses a cutter with replaceable blades, which comprises: the blade comprises a blade part and a fixing part, and the root of the blade part is provided with a hole; the left gasket and the right gasket clamp the blade, and the left gasket or the right gasket is provided with a clamp used for being matched with the hole in the blade part; and the button can contact and drive the left gasket or the right gasket and make the staple break away from the hole at the root of the blade part. The blade is locked by the staple on the gasket by utilizing the elastic action of metal; the elastic sheet is deformed and is unlocked by pressing a button on the knife body, so that the knife is convenient for a user to replace. However, the traditional cutting edge is divided into four pieces, two pieces are used for clamping, one piece is used for fixing, and the other piece is the cutting edge used for cutting. In addition, unlocking the blade by pressing a button is dangerous, and particularly the unlocking button is located on the grip/handle portion of the knife, which is prone to cause danger due to improper ejection of the blade due to accidental touch.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that a security is higher is provided, blade installing support and assorted blade and the sword of using these structures of simple structure easy to operate to overcome among the prior art security poor, the complicated defect of structure.

The utility model provides a technical scheme that above-mentioned technical problem adopted does:

blade installing support, fixed part and rotation portion including rotatable coupling, form the open slot that can install the blade between fixed part and the rotation portion, fixed part and/or rotation portion have and are used for fixing the fixed position of blade.

Further, the fixing portion is provided with a first convex edge which is approximately the same as the extending direction of the blade, and the first convex edge is matched with the edge of the back of the blade.

Furthermore, the device is also provided with an unlocking mechanism which is not in a one-side pressing type, and the rotating part is provided with a notch matched with the unlocking mechanism.

Further, the unlocking mechanism is provided with a screw fixed on the fixing part and a nut matched with the screw.

Further, the fixing portion has a fixing position for fixing the blade.

Further, the fixed position comprises a first fixed position, the first fixed position is a first limiting protrusion located on the fixed portion, the blade is provided with a limiting hole, and the first limiting protrusion penetrates through the limiting hole.

Further, the fixed position still includes the fixed position of second, the blade has the spacing arch of second, the spacing arch of second with the fixed position joint of second.

Further, the second fixing position is a limiting notch located on the fixing portion.

The utility model discloses still provide interchangeable blade, the blade cooperatees with above-mentioned blade installing support.

The utility model discloses still provide the sword, it has above-mentioned blade installing support and blade.

Compared with the prior art, the utility model has the advantages that the unlocking mechanism is set to be unlocked in a manner that the unlocking mechanism can not be pressed, thereby solving the technical problem that the blade is popped up due to the possible misoperation in the prior art when the blade is not desired to be replaced; the blade mounting bracket is provided with only three components, has simple structure and good stability, provides various embodiments for reinforcing the fixed blade, and is suitable for various folding or non-folding cutters; the blade is replaced without involving the handle part, and the operation is convenient.

Drawings

Fig. 1 is a schematic view of the overall construction of a knife having a blade mounting bracket and a blade according to the present invention;

FIG. 2 is an exploded view of one embodiment of the blade mounting bracket and blade of the present invention, wherein the blade mounting bracket is in an open position;

FIGS. 3A and 3B are schematic structural views of an embodiment of a portion of a blade mounting bracket and corresponding blade of the present invention, respectively;

fig. 4A and 4B are schematic structural views of another embodiment of a portion of a blade mounting bracket and a corresponding blade according to the present invention, respectively.

Detailed Description

The present invention will be described in further detail with reference to the following embodiments.

Reference is made to fig. 1-4B. The utility model discloses a sword includes blade installing support 200, blade 300 and handle of a knife 100, and blade 300 can be dismantled with blade installing support 200 and be connected, and blade installing support 200 is connected with handle of a knife 100, and when the sword was folding sword, blade installing support 200 and handle of a knife 100 rotatable coupling.

The blade mounting bracket 200 includes a fixing portion 210 and a rotating portion 220, the fixing portion 210 and the rotating portion 220 are rotatably connected through a rotating shaft 230 at an end away from the tool holder 100, and when the fixing portion 210 and the rotating portion 220 are in a closed state (as shown in fig. 1), an opening groove capable of mounting the blade 300 is formed therebetween. The fixing portion 210 has a first convex edge 212 substantially the same as the extending direction of the blade 300, the first convex edge 212 can be matched with the edge of the blade back 302 of the blade 300, as shown in fig. 2, so as to prevent the blade 300 from moving from the cutting edge 301 to the blade back 302, the first convex edge 212 is a groove bottom of the open groove, and two opposite side surfaces of the fixing portion 210 and the rotating portion 220 respectively located at two sides of the first convex edge 212 are two inner side walls of the open groove.

One end of the blade mounting bracket 200 near the handle 100 has an unlocking mechanism 240 of a non-one-side pressing type, which means that the unlocking mechanism cannot be unlocked by applying only a one-way pressure thereto. The rotating portion 220 has a notch 222 matched with the unlocking mechanism 240, the unlocking mechanism 240 can be a screw fixed on the fixing portion 210 and a nut matched with the screw, when the blade 300 needs to be replaced, the nut is screwed out (loosened) to form a certain gap, pressure between the edge of the notch 222 pressed against the fixing portion 210 and the fixing portion 210 disappears originally, the rotating portion 220 rotates outwards around the rotating shaft 230, the blade 300 is detached for replacement, after a new blade 300 is replaced, the rotating portion 220 rotates inwards until the notch 222 completely returns to the unlocking mechanism 240, and the nut is screwed. In other embodiments, the unlocking mechanism 240 may also be a snap or other non-one-sided push type unlocking mechanism.

In order to more securely fix the blade 300 to the blade mounting bracket 200, the blade mounting bracket 200 has a first fixing location, which in one embodiment is a first limiting protrusion 214, and the first limiting protrusion 214 cooperates with a limiting hole 304 on the blade 300 to fix the blade 300. As shown in fig. 2 and 3B, respectively, a first stopper protrusion 214 having a truncated cone shape, or a first stopper protrusion 214A having an elongated truncated cone shape. The first limit protrusion 214 may also be other common shapes, such as a triangular table, a square table, a rectangular table, etc., and in another embodiment, it may also be an asymmetric special-shaped boss, such as the limit hole 304 shown in fig. 4A and 4B and the special-shaped limit protrusion 214B matching with it. In other embodiments, the first fixing location may coincide with a hole in the blade 300. In some inferior embodiments, even the first fixing position may serve as a limit as long as it can pass through the hole of the blade 300, but the blade 300 may be unstable due to the swing, rotation or shaking of a certain extent. Therefore, when the first fixing position and the limiting hole 304 are both located in the middle of the blade, and when an external force in any direction on the plane of the blade 300 is applied to the blade 300, the blade 300 does not rotate around the shaft, so that the blade 300 can be well fixed.

As shown in fig. 3B, the blade mounting bracket 200 further has a second fixing position, the second fixing position is located at an end of the open slot away from the handle 100, the edge of the back 302 of the blade 300 has a second limiting protrusion 305 (as shown in fig. 3A), and the bayonet between the second limiting protrusion and the back 302 is clamped at an end of the open slot away from the handle 100, that is, at a connection position of the first convex edge 212 and the first side 215 of the blade mounting bracket 200. In another embodiment, as shown in fig. 4A and 4B, the second retention feature is a first retention notch 217 and the second retention projection 305B cooperates with the retention notch 217 of the blade mounting bracket 200 to retain it.

The bottom edge 303 of the blade 300 is in close abutment with the bottom 213 of the blade mounting bracket 200. As shown in fig. 2 and 3B, the fixing portion 210 of the blade mounting bracket 200 has a second side 211 connected to the bottom 213, the rotating portion 220 has a third side 221 matching with the second side 211, and the second side 211 blocks the rotating portion 220 from further rotating inwards, so as to further limit the rotating portion 220 in the process of rotating inwards.

As shown in fig. 4A and 4B, the blade mounting bracket 200 further has a third retention location that is recessed inwardly from the bottom 213 of the blade mounting bracket 200 to form a second retention notch 216, and the blade 300 has a third retention projection 306 that mates with the third retention location, the third retention projection 306 projecting outwardly from the bottom edge 303 of the blade 300.

Claims

1. Blade installing support, its characterized in that: the fixed part and the rotating part are connected in a rotatable mode, an open slot capable of installing the blade is formed between the fixed part and the rotating part, and the fixed part and/or the rotating part are/is provided with a fixing position used for fixing the blade.

2. The blade mounting bracket of claim 1, wherein: the fixed part has with the roughly the same first chimb of extending direction of blade, first chimb with the back of a knife edge of blade is identical.

3. The blade mounting bracket of claim 2, wherein: the device is also provided with a non-unilateral pressing type unlocking mechanism, and the rotating part is provided with a notch matched with the unlocking mechanism.

4. The blade mounting bracket of claim 3, wherein: the unlocking mechanism is provided with a screw fixed on the fixing part and a nut matched with the screw.

5. The blade mounting bracket of claim 3, wherein: the fixing part is provided with a fixing position for fixing the blade.

6. The blade mounting bracket of claim 5, wherein: the fixed position comprises a first fixed position, the first fixed position is a first limiting protrusion located on the fixed portion, the blade is provided with a limiting hole, and the first limiting protrusion penetrates through the limiting hole.

7. The blade mounting bracket of claim 5, wherein: the fixed position further comprises a second fixed position, the blade is provided with a second limiting protrusion, and the second limiting protrusion is connected with the second fixed position in a clamping mode.

8. The blade mounting bracket of claim 7, wherein: the second fixing position is a limiting notch located on the fixing part.

9. A replaceable blade characterized by: the blade is mated with a blade mounting bracket according to any of claims 1-8.

10. The sword, its characterized in that: having a blade mounting bracket according to any one of claims 1 to 8 and a blade according to claim 9.