CN113290581A

CN113290581A - Quick replacement art designer's sword

Info

Publication number: CN113290581A
Application number: CN202110392978.7A
Authority: CN
Inventors: 潘明祥; 姚琦; 杜建福
Original assignee: Ningbo Xingwei Tool Technology Co ltd
Current assignee: Ningbo Xingwei Tool Technology Co ltd
Priority date: 2021-04-13
Filing date: 2021-04-13
Publication date: 2021-08-24

Abstract

The invention provides a quick-replaceable art knife and relates to the technical field of art knives. This quick replacement art knife, including sword shell and tail-hood, the tail-hood is inserted and is located sword shell inner, the inside activity of rear end of tail-hood is provided with the sword box, and the outer end of sword box is located one side of tail-hood, the front side of tail-hood is provided with the blade holder, the inboard cooperation of blade holder slides on the tail-hood lateral wall, the rear end of blade holder is connected with the extension spring, the rear end of extension spring is connected in the tail-hood inner, the upper end of blade holder is provided with pushes away the button, the rear end of blade holder runs through and is provided with the pivot axle, the rear end lower part that pushes away the button rotates and cup joints on the pivot axle. According to the invention, the elasticity of the torsion spring and the lever principle are combined, the tool apron and the push button are quickly opened, so that the blade is quickly replaced, and meanwhile, the device is elastically locked through the tension spring structure, so that the stability of the whole structure is ensured.

Description

Quick replacement art designer's sword

Technical Field

The invention relates to the technical field of art designing knives, in particular to a quick-replaceable art designing knife.

Background

The art designing knife is also commonly called as a graver or a wallpaper knife, is a knife for art and handicraft, is mainly used for cutting objects with soft texture, mainly consists of a plastic knife handle and a blade, and is of a drawing structure. Also have a small number for the metal handle of a knife, the blade is mostly the bevel connection, can follow the marking off rupture of blade with the blunt, appears new blade point, facilitates the use. The utility knife has various sizes. When the knife is normally used, only the knife tip part is usually used, and cutting, carving and dotting are the main functions. However, the knife body of the knife is very fragile and cannot extend out of the knife body too long when in use.

The existing art designing knife is not convenient enough to change the knife when in use, the blade is generally stored separately, and the knife box is carried specially when in use, which is not convenient enough.

The prior patent (publication number is CN201279782Y) discloses an art knife with convenient blade replacement, which comprises a knife handle, wherein the knife handle comprises a front knife shell and a rear knife shell which are buckled together, a sinking groove is formed in the rear knife shell, and a layer of iron sheet is arranged at the bottom of the sinking groove; a blade inserted in the knife handle, wherein a strip-shaped chute is arranged in the middle of the blade; the rotary knob is arranged on the tool handle, the upper surface of the rotary knob is provided with a coin slot, the lower surface of the rotary knob is provided with a central column, and the tail end of the central column is provided with threads; a rotatable blade storage box disposed at the back of the handle, the blade storage box having a tail hole; the blade seat is arranged in the cutter handle, a strip-shaped bulge is arranged on the blade seat, at least one magnet block is fixedly arranged at the bottom of the blade seat, and a threaded hole is formed in the bulge; a spring mounted between the blade storage case and the handle; and the box opening button is arranged on the rear knife shell and is provided with a blocking arm. The device controls the front and back movement and clamping of the blade through the rotation of the knob, so that the blade is replaced. However, the device needs to be rotated by coins every time when in use, nowadays, the coins are gradually used less and less, which causes the device to be inconvenient to use, and the income of the blade of the utility knife need to be controlled by rotating a knob, which is inconvenient to use.

Therefore, a quick-change art knife needs to be designed.

Disclosure of Invention

Technical problem to be solved

Aiming at the defects of the prior art, the invention provides a quick-replacement art knife, which solves the problems that the existing art knife is inconvenient in tool changing operation, and the blade and the art knife are separately arranged and inconvenient to use and carry.

(II) technical scheme

In order to achieve the purpose, the invention is realized by the following technical scheme: a quick-change art knife comprises a knife shell and a tail cover, wherein the tail cover is inserted into the inner end of the knife shell, a knife box is movably arranged inside the rear end of the tail cover, the outer end of the knife box is positioned on one side of the tail cover, a knife holder is arranged on the front side of the tail cover, the inner side of the knife holder slides on the side wall of the tail cover in a matched manner, the rear end of the knife holder is connected with a tension spring, and the rear end of the tension spring is connected to the inner end of the tail cover;

the upper end of blade holder is provided with pushes away the button, the rear end of blade holder runs through and is provided with the pivot round pin, the rear end lower part that pushes away the button rotates and cup joints on the pivot round pin, the cover is equipped with the torsional spring on the one end axle body of pivot round pin, the lower extreme and the blade holder upper end contact of torsional spring, the upper end and the rear end bottom contact that pushes away the button, the blade holder with push away and be provided with the blade between the button.

Preferably, a knife shell sleeve is fixedly arranged on one side of the knife shell, and openings are formed in the upper side and the lower side of the knife shell close to the front end.

Preferably, a limiting block is fixedly arranged on the inner side wall of the tail cover close to the front end.

Preferably, a magnet placing groove is formed in the bottom of the front end of the tool apron, and a magnet is arranged at the inner end of the magnet placing groove.

Preferably, two clamping blocks are arranged at the bottom end of the interior of the cutter holder, and a notch matched with the two clamping blocks is formed in the blade body of the blade.

Preferably, a button is fixedly arranged on the upper side of the rear end of the tail cover, and a button groove matched with the button is formed in the upper side of the rear end of the knife shell.

Preferably, the upper end of the push button is clamped with an upper push button cover, and the fixing clamp of the tool apron is clamped with a lower push button cover.

Preferably, the inner end of the tail cover is provided with a hanging column, the rear end of the tension spring is hung on the hanging column, and the front end of the tension spring is hung at the rear end of the cutter holder.

The working principle is as follows: during the use, press the button earlier, then pull out the tail-hood backward, make it separately with the sword shell, push away the button and promote the blade holder forward next, the blade holder moves along the side rail of tail-hood forward, until can't continue to move forward with the stopper contact, will push away the button rear end and push down this moment, push away the button front end and turn up, take out the blade from the inner of blade holder, then pull out the sword box from the tail-hood, take out new blade from it, it is inner to change into the blade holder, loosen again and push away the button, it gets back to the normal position under the torsional spring effect to push away the button, next with the blade holder recovery normal position, then can continue to use in inserting the tail-hood back sword shell.

(III) advantageous effects

The invention provides a quick-change art knife. The method has the following beneficial effects:

1. the knife shell and the tail cover of the art knife designed by the invention are separately arranged, can be rapidly disassembled, and then the elasticity of the torsion spring and the lever principle are combined to rapidly open the knife holder and the push button, so that the blade is rapidly replaced.

2. According to the invention, the device is elastically locked through the tension spring structure, the blade is fixed by clamping the blade holder and the push button, and the blade is clamped by the magnet and the fixture block arranged at the bottom end of the blade holder, so that the blade is effectively prevented from moving in the device, and the stability of the structure is ensured.

3. The cutter box is arranged at the inner end of the tail cover, a plurality of blades can be stored, and the cutter box are integrally arranged, so that the cutter can be changed at any time when the cutter is used outside the cutter box, and the cutter box is very convenient.

Drawings

FIG. 1 is an isometric view of a structure of the present invention;

FIG. 2 is an exploded view of the structure of the present invention;

FIG. 3 is a schematic view of a tool holder according to the present invention;

FIG. 4 is a schematic view of the tailstock being withdrawn from the inner end of the tool housing;

FIG. 5 is a schematic view of the tool holder being pushed forward at the inner end of the tailstock;

FIG. 6 is a schematic view showing an opened state of a push button on the upper end of the tool holder;

fig. 7 is a schematic view showing the state that the knife box is taken out from the inner end of the tail cover.

Wherein, 1, a knife shell; 2. a tail cover; 3. a cutter shell sleeve; 4. a knife box; 5. a tool apron; 6. a push button; 7. a roller pin; 8. a torsion spring; 9. a tension spring; 10. pushing the button cover upwards; 11. a blade; 12. a magnet; 13. pushing the button cover downwards; 14. a button slot; 15. a button; 16. a limiting block; 17. hanging a column; 18. a magnet placing groove; 19. and (7) clamping blocks.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example (b):

as shown in fig. 1-7, an embodiment of the present invention provides a quick replacement utility knife, including a knife shell 1 and a tail cover 2, the knife shell 1 is made of an aluminum alloy material, the tail cover 2 is made of a PC material, a knife shell sleeve 3 is fixedly disposed on one side of the knife shell 1, the knife shell sleeve 3 is made of a PP material and a TPR material, so as to improve comfort of a user, openings are disposed on both upper and lower sides of the front end of the knife shell 1, the tail cover 2 is inserted into the inner end of the knife shell 1, a button 15 is fixedly disposed on the upper side of the rear end of the tail cover 2, a button slot 14 matched with the button 15 is disposed on the upper side of the rear end of the knife shell 1, the button 15 can be pressed to draw the tail cover 2 out of the knife shell 1, a knife box 4 is movably disposed inside the rear end of the tail cover 2, the outer end of the knife box 4 is disposed on one side of the tail cover 2, and the knife box 4 is used for storing a replacement blade, so that the utility knife can be replaced at any time.

The front side of tail-hood 2 is provided with blade holder 5, the inboard cooperation of blade holder 5 is slided on 2 lateral walls of tail-hood, tail-hood 2 is by fixed stopper 16 that is provided with on the inside wall of front end, stopper 16 is injectd the position of blade holder 5, the rear end of blade holder 5 is connected with extension spring 9, the rear end of extension spring 9 is connected in tail-hood 2 the inner, the inner of tail-hood 2 is provided with string post 17, the rear end of extension spring 9 articulates on string post 17, the front end articulates the rear end at blade holder 5, the device is through the extension spring structure with device elastic locking, guarantee the stability of structure.

The upper end of the tool apron 5 is provided with a push button 6, the rear end of the tool apron 5 is provided with a rotating shaft pin 7 in a penetrating way, the lower part of the rear end of the push button 6 is rotatably sleeved on the rotating shaft pin 7, one end shaft body of the rotating shaft pin 7 is sleeved with a torsional spring 8, the lower end of the torsional spring 8 is contacted with the upper end of the tool apron 5, the upper end is contacted with the bottom of the rear end of the push button 6, the rear end of the tool apron 5 is provided with a rotating shaft pin 7, the rear end of the push button 6 and a limiting structure of the torsional spring 8, a blade 11 is arranged between the tool apron 5 and the push button 6, when the tool changing operation is carried out, the front end of the push button 6 can be tilted up by pressing down the rear end of the push button 6 with hands, so that a user can directly take out the blade 11, the bottom of the front end of the tool apron 5 is provided with a magnet placing groove 18, the inner end of the magnet placing groove 18 is provided with a magnet 12, the inner end of the blade 11 can be adsorbed on the tool apron 5, the stability of the tool apron is increased, and the inner bottom of the tool apron 5 is provided with two clamping blocks 19, the blade body of blade 11 is seted up with two fixture block 19 complex openings, fixture block 19 also can prevent that it from rocking in blade holder 5 the inner with blade 11 chucking, pushes away the upper end joint of button 6 and has pushed up button lid 10, and the fixed joint of blade holder 5 has down to push away button lid 13, can drive blade holder 5 through pushing away button lid to two east during the use and move about in 1 inner of tool case.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a quick replacement art knife, includes sword shell (1) and tail-hood (2), its characterized in that: the cutter is characterized in that the tail cover (2) is inserted into the inner end of the cutter shell (1), a cutter box (4) is movably arranged inside the rear end of the tail cover (2), the outer end of the cutter box (4) is located on one side of the tail cover (2), a cutter holder (5) is arranged on the front side of the tail cover (2), the inner side of the cutter holder (5) slides on the side wall of the tail cover (2) in a matched mode, the rear end of the cutter holder (5) is connected with a tension spring (9), and the rear end of the tension spring (9) is connected to the inner end of the tail cover (2);

the upper end of blade holder (5) is provided with pushes away button (6), the rear end of blade holder (5) runs through and is provided with pivot axle (7), the rear end lower part that pushes away button (6) rotates and cup joints on pivot axle (7), the one end axle body of pivot axle (7) is gone up to overlap and is equipped with torsional spring (8), the lower extreme and the blade holder (5) upper end contact of torsional spring (8), the upper end with push away the rear end bottom contact of button (6), blade holder (5) and push away and be provided with between button (6) blade (11).

2. The quick change utility knife of claim 1, wherein: a knife shell sleeve (3) is fixedly arranged on one side of the knife shell (1), and openings are formed in the upper side and the lower side of the knife shell (1) close to the front end.

3. The quick change utility knife of claim 1, wherein: and a limiting block (16) is fixedly arranged on the inner side wall of the tail cover (2) close to the front end.

4. The quick change utility knife of claim 1, wherein: a magnet placing groove (18) is formed in the bottom of the front end of the tool apron (5), and a magnet (12) is arranged at the inner end of the magnet placing groove (18).

5. The quick change utility knife of claim 1, wherein: two clamping blocks (19) are arranged at the bottom end of the interior of the tool apron (5), and openings matched with the two clamping blocks (19) are formed in the blade body of the blade (11).

6. The quick change utility knife of claim 1, wherein: the upper side of the rear end of the tail cover (2) is fixedly provided with a button (15), and the upper side of the rear end of the knife shell (1) is provided with a button groove (14) matched with the button (15).

7. The quick change utility knife of claim 1, wherein: the upper end of the push button (6) is clamped with an upper push button cover (10), and the fixing clamp of the tool apron (5) is connected with a lower push button cover (13).

8. The quick change utility knife of claim 1, wherein: the inner of tail-hood (2) is provided with string post (17), the rear end of extension spring (9) articulates on hanging post (17), and the front end articulates the rear end at blade holder (5).