CN216127299U

CN216127299U - Efficient safe folding knife with automatic knife changing function

Info

Publication number: CN216127299U
Application number: CN202120744301.0U
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: 2022-03-25
Anticipated expiration: 2031-04-13

Abstract

The utility model provides a folding sword of high-efficient safe type with automatic tool changing function relates to the cutter field. This folding sword of high-efficient safe type with automatic tool changing function, including the back sword shell, sliding connection has the public screw of pivot in the back sword shell through-hole, the public screw right end threaded connection of pivot has the female screw of pivot, female screw sliding connection of pivot is in the through-hole of sword shell front end in the front, sliding connection has the afterbody screw in the through-hole of back sword shell rear end, afterbody screw tail end threaded connection is in the left blind hole of sword shell rear end in the front. The cutter head under the condition of folding is enabled to be exposed through the cover plate at the tail of the cutter head, safety is improved, automatic continuous cutter changing is achieved through automatic springing of the cover plate of the cutter head and magnetic adsorption of the circular magnetic block, quick, convenient and safe cutter changing is achieved, quick cutter discharging is achieved through pressing the cutter discharging button, and the cutter head is convenient to use and worth of being widely popularized.

Description

Efficient safe folding knife with automatic knife changing function

Technical Field

The utility model relates to the technical field of cutters, in particular to a high-efficiency safe folding cutter with an automatic cutter changing function.

Background

A foldable knife is composed of a handle pivoted to a rotary knife body, a safety fastening piece installed to said knife body and with a back elastic strip, a back elastic strip installed to said back end of handle and with a supporting part and a recess for supporting said elastic strip, and a lifting elastic fastening piece with a back elastic fastening part for fixing said knife body and a push part for pushing said knife body out of handle, the whole thickness of the folding knife is reduced, so that the folding knife is convenient to store and carry, and the operation of the folding knife is simpler and easier.

In the folding knife existing at the present stage, the problem that the operation of dismounting and mounting is complex when the blade is replaced exists, meanwhile, the situation that the blade hurts people easily occurs in the dismounting and mounting processes, secondly, the knife head part of the existing folding knife can be provided with three knife heads at most, daily use is not satisfied, and meanwhile, the knife heads of most spring knives are in the state that the knife points are exposed in the folding state, so that the safety of the folding knife is influenced.

Disclosure of Invention

Technical problem to be solved

Aiming at the defects of the prior art, the utility model provides the efficient and safe folding knife with the automatic knife changing function, and solves the problems of danger and complexity in knife head replacing operation, small knife head storage quantity and low overall safety.

(II) technical scheme

In order to achieve the purpose, the utility model is realized by the following technical scheme: a high-efficiency safe folding knife with an automatic knife changing function comprises a back knife shell, a rotating shaft male screw is connected in a through hole of the back knife shell in a sliding way, the right end of the rotating shaft male screw is in threaded connection with a rotating shaft female screw which is in sliding connection with a through hole at the front end of the front cutter shell, a tail screw is connected in the through hole at the rear end of the rear knife shell in a sliding way, the tail end of the tail screw is connected in a blind hole at the left side of the rear end of the front knife shell in a threaded way, the outer diameter of the left end of the rotating shaft female screw is connected with a cutter head rear shell in a sliding way, the outer diameter of the left side of the rotating shaft female screw, which is positioned on the right side of the cutter head rear shell, is connected with a cutter head reinforcing block in a sliding way, the tool bit reinforcing block is connected on a fixed shaft at the rear end of the tool bit rear shell in a sliding manner, the bottom of the right end of the tool bit rear shell is connected with a tool apron in a sliding manner, the middle part of the rear end of the tool apron is provided with a first spring, and the top end of the first spring is fixedly connected with a push button.

Preferably, blade holder left side front end top is provided with the lock sword piece, the fixture block of both sides all runs through the blade holder about lock sword piece right-hand member top, sliding connection has anti-skidding rubber in the recess of blade holder backshell top front side, the circular magnetic path of top fixedly connected with of blade holder right-hand member front side, even sliding connection has first blade in the recess of blade holder right-hand member, the position department that lies in the blade holder right side on the external diameter of pivot box screw right side rotates and is connected with the shell before the tool bit, even sliding connection has four second blades in the recess of shell right-hand member before the tool bit.

Preferably, shell right-hand member front side bottom has a fixed screw with the corresponding position department threaded connection of second blade before the tool bit, the rear end middle part of shell right-hand member recess is provided with the locking piece before the tool bit, sliding connection has the second spring in the fixed axle at locking piece rear end middle part, shell right-hand member recess is located locking piece front end department and rotates and be connected with the tool bit apron before the tool bit.

Preferably, the position department that shell right-hand member recess is located the locking piece top before the tool bit is provided with the third spring, there is the door closure shell fragment middle part of tool bit apron left end recess through bolted connection, there is the tool changing button through bolted connection in the recess on tool bit apron front side top.

Preferably, the position that is located the shell right side before the tool bit on the external diameter of pivot box screw right side is rotated and is connected with tool bit tail apron, the upper and lower both sides of tool bit tail apron right-hand member all link to each other with the shell before the tool bit through the M2 screw.

Preferably, a tool bit torsion spring is arranged at the right end of the tool bit tail cover plate, and a tool discharging button is connected in the through hole in the top of the front side of the right end of the front tool case in a sliding mode.

Preferably, the cutter discharging button penetrates through the front cutter shell and is fixedly connected with a button spring at the left end, the left end of the button spring is fixedly connected to the inner wall of the right end of the rear cutter shell, and the button spring is arranged on the outer diameter of the rotary shaft female screw.

Preferably, the rear tool case left end is fixedly connected with rear casing rubber, the middle part of the left end of the rear casing rubber is connected with a hanger through a round head screw, and the right end of the front tool case is fixedly connected with front casing rubber at a position corresponding to the rear casing rubber.

The working principle is as follows: when the whole knife is in a folded state, a knife outlet button is pressed, the principle of deformation and reset of a knife head torsional spring is utilized, the first knife head of the folding knife is quickly and automatically opened, the existing blocking principle is utilized, the safety protection effect is realized, the knife head tail cover plate is utilized, the knife tip cannot be exposed in the folded state, the knife sword cannot be folded and locked in the opened state, when the second knife blade is stored, the push button is firstly pressed down and then pushed backwards, the locking block is pushed and rotated to be unhooked, the second spring always belongs to a compression and extension state in a normal state, the locking block always locks the knife head cover plate to be incapable of bouncing, after the locking block is unhooked, the knife head cover plate is automatically bounced under the action of a door cover elastic sheet, then the knife head cover plate is opened, the second knife blade is arranged in a groove at the right end of a knife head front shell, and compared with the spring knife in the existing stage, the utility model can be provided with five blades, after being arranged, the blade head cover plate is covered, then the blade head cover plate is pressed downwards and pushed inwards to lock the blade head cover plate, then the blade locking block is firmly fixed on the blade seat and two salient points are exposed under the magnetic adsorption action of the circular magnetic block, two notches of the first blade are always aligned with the two salient points on the blade locking block under the action of the two sides and the middle limit point of the front shell of the blade head, the second blade is also adsorbed by the strong magnetism, the second blade is tightly attached to the blade seat surface, the blade locking block and the first blade are firmly adsorbed and locked together under the strong magnetic adsorption action of the circular magnetic block, the blade seat is firmly locked, the push button is pushed to drive the blade seat, the blade locking block and the first blade to push out, when the first blade is taken down, the blade seat returns to the original reset position, two notches of a second blade arranged in a front shell of the cutter head can be aligned to two salient points on the cutter locking block, the second blade is under the strong magnetic adsorption effect of the circular magnetic block, the two notches of the second blade are orderly arranged in the cutter holder and firmly adsorbed on the cutter locking block, the second blade is firmly hung by the two salient points, the push button is pushed to drive the cutter holder and the cutter locking block, the adsorbed second blade is pushed out together, the next second blade is limited under the action of points existing in the two sides and the middle of the front shell of the cutter head, and therefore single-blade cutter discharging is achieved, and automatic replacement of multiple automatic and continuous second blades is achieved through repeated operation.

(III) advantageous effects

The utility model provides a high-efficiency safe folding knife with an automatic knife changing function. The method has the following beneficial effects:

1. according to the utility model, the blade is taken out by pressing the push button and pushing the push button to the front end of the cutter head, the cutter changing button is pressed down to the tail part of the cutter head for resetting, the blade is adsorbed by the strong magnetic force of the circular magnetic block and the second blade is automatically mounted, so that the automatic cutter changing function of continuous cutting is realized, meanwhile, the cutter changing mode is quick and convenient, the blade is not required to be contacted in the cutter mounting process, and the safety is greatly improved.

2. According to the utility model, the push button is pressed and pushed backwards to realize automatic springing-open of the cutter head cover plate, the second blade can be quickly opened and equipped into a spare blade, five second blades can be arranged in the front shell of the cutter head, and the daily use of personnel is relatively satisfied compared with the situation that the existing folding knife is provided with three blades at most.

3. The utility model can realize quick automatic opening and safety protection when the whole knife is folded, the knife tip in the folded state can not be exposed, and the knife tip in the opened state can not be folded, folded and locked, thereby improving the overall safety.

Drawings

FIG. 1 is a perspective view of the present invention;

FIG. 2 is a schematic view of the present invention;

FIG. 3 is a schematic view of the present invention in a folded state;

FIG. 4 is a bottom view of the present invention;

fig. 5 is an exploded view of the present invention.

Wherein, 1, round head screws; 2. hanging a climbing rope; 3. a rotating shaft male screw; 4. a tail screw; 5. a rear housing rubber; 6. a rear knife housing; 7. a cutter head rear shell; 8. anti-skid rubber; 9. a cutter head reinforcing block; 10. locking the cutter block; 11. a push button; 12. a first spring; 13. a tool apron; 14. a circular magnetic block; 15. a first blade; 16. A front shell of the cutter head; 17. a button spring; 18. a cutter discharging button; 19. fixing screws; 20. a door cover spring sheet; 21. a locking block; 22. a second spring; 23. a tool changing button; 24. a cutter head cover plate; 25. a third spring; 26. a cutter head tail cover plate; 27. an M2 screw; 28. a tool bit torsion spring; 29. a front blade shell; 30. a front housing rubber; 31. a spindle nut screw; 32. a second blade.

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. 1-5, an embodiment of the present invention provides a high-efficiency safety folding knife with an automatic knife-changing function, which comprises a rear knife shell 6, a rotating shaft male screw 3 is slidably connected in a through hole of the rear knife shell 6, a rotating shaft female screw 31 is threadedly connected at the right end of the rotating shaft male screw 3, the rotating shaft female screw 31 is slidably connected in a through hole at the front end of a front knife shell 29, a tail screw 4 is slidably connected in a through hole at the rear end of the rear knife shell 6, the tail end of the tail screw 4 is threadedly connected in a blind hole at the left side of the rear end of the front knife shell 29, a knife head rear shell 7 is slidably connected on the outer diameter at the left end of the rotating shaft female screw 31, a knife head reinforcing block 9 is slidably connected on the outer diameter at the left side of the rotating shaft female screw 31 at the right side of the knife head rear shell 7, the knife head reinforcing block 9 is slidably connected on a fixed shaft at the rear end of the knife head rear shell 7, a knife head 13 is slidably connected at the bottom of the right end of the knife head rear shell 7, a first spring 12 is arranged in the middle part of the rear end of the knife head 13, the top end of the first spring 12 is fixedly connected with the push button 11, and the first spring 12 plays a role in resetting the push button 11 through self-resetting movement under the condition of no external force.

Blade holder 13 left side front end top is provided with lock sword piece 10, the fixture block of both sides all runs through blade holder 13 about lock sword piece 10 right-hand member top, sliding connection has anti-skidding rubber 8 in the recess of 7 top front sides of tool bit backshells, anti-skidding rubber 8 plays the effect that prevents the whole landing of cutter in the use, the circular magnetic path of top fixedly connected with 14 of blade holder 13 right-hand member front side, even sliding connection has first blade 15 in the recess of blade holder 13 right-hand member, the position department that lies in the blade holder 13 right side on the female screw 31 right side external diameter of pivot rotates and is connected with shell 16 before the tool bit, even sliding connection has four second blades 32 in the recess of shell 16 right-hand members before the tool bit.

The position department threaded connection that shell 16 right-hand member front side bottom and second blade 32 correspond before the tool bit has set screw 19, and shell 16 links to each other with tool bit backshell 7 through set screw 19 before the tool bit, and the rear end middle part of shell 16 right-hand member recess is provided with locking piece 21 before the tool bit, and sliding connection has second spring 22 in the fixed axle at locking piece 21 rear end middle part, and shell 16 right-hand member recess is located locking piece 21 front end department before the tool bit and rotates and be connected with tool bit apron 24.

The position department that 16 right-hand member recesses in the front shell of tool bit lie in locking piece 21 top is provided with third spring 25, and there is door closure shell fragment 20 in the middle part of 24 left end recesses in the tool bit apron through bolted connection, has tool changing button 23 through bolted connection in the recess on 24 front side tops in the tool bit apron.

The position on the right side of the front cutter head shell 16 on the outer diameter of the right side of the rotating shaft female screw 31 is rotatably connected with a cutter head tail cover plate 26, and the upper side and the lower side of the right end of the cutter head tail cover plate 26 are connected with the front cutter head shell 16 through M2 screws 27.

The right end of the cutter head tail cover plate 26 is provided with a cutter head torsion spring 28, and a cutter discharging button 18 is connected in a through hole in the top of the front side of the right end of the front cutter shell 29 in a sliding mode.

The cutter discharging button 18 penetrates through the front cutter shell 29 and is fixedly connected with a button spring 17 at the left end, the left end of the button spring 17 is fixedly connected to the inner wall of the right end of the rear cutter shell 6, and the button spring 17 is arranged on the outer diameter of a rotating shaft female screw 31.

6 left end fixedly connected with back tool case rear housing rubber 5 of back tool case, 5 left end middle parts of back housing rubber are connected with through button head screw 1 and hang and climb 2, hang and climb 2 and make things convenient for carrying of whole cutter, and preceding tool case 29 right-hand member and the corresponding fixedly connected with procapsid rubber 30 of position department of back housing rubber 5, back housing rubber 5 and procapsid rubber 30 have promoted the holistic feeling of cutter, play the effect of protection to preceding tool case 6 and back tool case 29 simultaneously.

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 utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a folding sword of high-efficient safe type with automatic tool changing function, includes back sword shell (6), its characterized in that: the rear knife shell (6) is internally and slidably connected with a rotating shaft male screw (3) in a through hole, the right end of the rotating shaft male screw (3) is in threaded connection with a rotating shaft female screw (31), the rotating shaft female screw (31) is slidably connected in a through hole at the front end of the front knife shell (29), the through hole at the rear end of the rear knife shell (6) is internally and slidably connected with a tail screw (4), the tail end of the tail screw (4) is in threaded connection in a blind hole at the left side of the rear end of the front knife shell (29), the left end of the rotating shaft female screw (31) is in outer diameter of the left end of the front knife shell (31) and is slidably connected with a knife head rear shell (7), the left side of the rotating shaft female screw (31) is positioned on the outer diameter at the right side of the knife head rear shell (7) and is slidably connected with a knife head reinforcing block (9), the knife head reinforcing block (9) is slidably connected on a fixed shaft at the rear end of the rear shell (7), and a knife seat (13) is slidably connected at the bottom of the right end of the knife head rear shell (7), the middle part of the rear end of the tool apron (13) is provided with a first spring (12), and the top end of the first spring (12) is fixedly connected with a push button (11).

2. The efficient and safe folding knife with the automatic tool changing function according to claim 1, characterized in that: blade holder (13) left side front end top is provided with lock sword piece (10), the fixture block of both sides all runs through blade holder (13) about lock sword piece (10) right-hand member top, sliding connection has anti-skidding rubber (8) in the recess of tool bit backshell (7) top front side, the circular magnetic path of top fixedly connected with (14) of blade holder (13) right-hand member front side, even sliding connection has first blade (15) in the recess of blade holder (13) right-hand member, the position department that lies in blade holder (13) right side on pivot female screw (31) right side external diameter rotates and is connected with blade holder protecgulum (16), even sliding connection has four second blade (32) in the recess of blade holder protecgulum (16) right-hand member.

3. The efficient and safe folding knife with the automatic tool changing function according to claim 2, characterized in that: shell (16) right-hand member front side bottom and second blade (32) corresponding position department threaded connection have set screw (19) before the tool bit, the rear end middle part of shell (16) right-hand member recess is provided with locking piece (21) before the tool bit, sliding connection has second spring (22) in the fixed axle at locking piece (21) rear end middle part, shell (16) right-hand member recess is located locking piece (21) front end department before the tool bit and rotates and is connected with tool bit apron (24).

4. The efficient and safe folding knife with the automatic tool changing function according to claim 3, characterized in that: the cutter head front shell (16) right-hand member recess is located the position department on locking piece (21) top and is provided with third spring (25), there is door closure shell fragment (20) middle part through bolted connection of cutter head apron (24) left end recess, there is tool changing button (23) through bolted connection in the recess on cutter head apron (24) front side top.

5. The efficient and safe folding knife with the automatic tool changing function according to claim 1, characterized in that: the rotary shaft nut screw (31) is rotationally connected with a tool bit tail cover plate (26) at the position on the right side of the tool bit front shell (16) on the outer diameter of the right side of the rotary shaft nut screw (31), and the upper side and the lower side of the right end of the tool bit tail cover plate (26) are connected with the tool bit front shell (16) through M2 screws (27).

6. The efficient and safe folding knife with the automatic tool changing function according to claim 5, characterized in that: the cutter head tail cover plate (26) is provided with a cutter head torsion spring (28) at the right end, and a cutter outlet button (18) is connected in the through hole in the top of the front side of the right end of the front cutter shell (29) in a sliding mode.

7. The efficient and safe folding knife with the automatic knife changing function according to claim 6, characterized in that: the cutter discharging button (18) penetrates through the front cutter shell (29) and is fixedly connected with a button spring (17) at the left end, the left end of the button spring (17) is fixedly connected to the inner wall of the right end of the rear cutter shell (6), and the button spring (17) is arranged on the outer diameter of a rotating shaft nut screw (31).

8. The efficient and safe folding knife with the automatic tool changing function according to claim 1, characterized in that: rear shell body rubber (5) are connected to rear knife shell (6) left end fixedly, rear shell body rubber (5) left end middle part is connected with through button head screw (1) and hangs and climb (2), preceding knife shell (29) right-hand member and rear shell body rubber (5) corresponding position department fixedly connected with procapsid rubber (30).