CN202318348U - Locking/unlocking blade structure and cutting knife with same - Google Patents

Abstract

The utility model relates to a locking/unlocking blade structure and a cutting knife with the same. The locking/unlocking blade structure comprises an elastic sheet which is arranged on a knife holder, at least one blade clamping platform is arranged on the elastic sheet in convex mode, and the blade clamping platform is clamped in a U-shaped notch of a blade. When the elastic sheet is pressed, the blade clamping platform is separated from the U-shaped notch, and the blade is unlocked from the knife holder rapidly. The elastic sheet comprises a supporting rod which is located at the lower end of the elastic sheet, the lower end of the supporting rod comprises a positioning structure, and the positioning structure protrudes out of the elastic sheet backwards. A connecting hole is arranged on the positioning structure, and the positioning structure is fixed on the knife holder through the connecting hole. The locking/unlocking blade structure can be applied to the cutting knife, can unlock the blade from the knife holder rapidly so as to replace the blade conveniently, and solves the technical problem that a blade replacing structure of an existing cutting knife is too complicated and inconvenient to operate.

Description

Locking/unlocking blade structure and have the cutting knife of locking/unlocking blade structure

Technical field

The utility model relates to a kind of cutting knife, particularly the locking/unlocking blade structure on the cutting knife and have the cutting knife of locking/unlocking blade structure.

Background technology

Traditional cutting knife is divided into fixed, collapsible and telescopic usually, generally is used for cutting paper, cloth, leather etc.Telescopic cutting knife generally by handle of a knife, be movably arranged on the cutter head in the handle of a knife and the blade that is installed on the cutter head is formed, cutter head can drive blade and in handle of a knife, slide blade is stretched out or takes in.Employed blade is trapezoidal shape mostly on the existing cutting knife, and the angle that point of a knife forms is very little acute angle, in the process of cutting, is easy to just fracture; Therefore need the frequent change cutter head, still, the detaching structure of current blade is very complicated; Operation inconvenience causes the puzzlement in the work.

Summary of the invention

The purpose of the utility model is to provide a kind of locking/unlocking blade structure, changes the structure too complex and the unhandy technical problem of blade to solve existing cutting knife;

[0004] purpose of the utility model is to provide a kind of cutting knife that has the locking/unlocking blade structure, changes the structure too complex and the unhandy technical problem of blade to solve existing cutting knife.

[0005] in order to address the above problem, the utility model provides a kind of locking/unlocking blade structure, comprises a shell fragment; Said shell fragment is arranged on the tool rest; Be convexly equipped with at least one blade Ka Tai on the said shell fragment, said blade card decometer pushes shrapnel in the U of blade type breach; Said blade Ka Tai breaks away from from said U type breach, the release from the said tool rest fast of said blade.

[0006] preferably, said shell fragment comprises a support bar, and said support bar is positioned at the lower end of said shell fragment, and the lower end of said support bar also comprises a location structure, and this location structure protrudes from said shell fragment backward.

[0007] preferably, a connecting hole is set on the said location structure, said location structure is fixed on the said tool rest through connecting hole.

[0008] preferably, be convexly equipped with a blade Ka Tai on the said shell fragment.

[0009] the utility model also provides a kind of cutting knife that has the locking/unlocking blade structure; Comprise the handle of a knife, inner frame, tool rest and the blade that combine by last handle of a knife and following handle of a knife; On said tool rest, said tool rest is movably arranged in the said inner frame said blade through locking/unlocking blade structure locking/unlocking, and said inner frame is arranged in the said handle of a knife; Push said locking/unlocking blade structure, said blade breaks away from release from tool rest; Said locking/unlocking blade structure comprises a shell fragment; Said shell fragment is arranged on the said tool rest; Be convexly equipped with at least one blade Ka Tai on the said shell fragment, said blade card decometer pushes shrapnel in the U of said blade type breach; Said blade Ka Tai breaks away from from said U type breach, the release from the said tool rest fast of said blade.

[0010] preferably; Be arranged with a T type groove in the said tool rest, said shell fragment is arranged in this T type groove, and said shell fragment comprises a support bar; Said support bar is positioned at the lower end of said shell fragment; The lower end of said support bar also comprises a location structure, and this location structure protrudes from said shell fragment backward, and said location structure is fixedly connected in the said T type groove.

[0011] preferably, the lower end of said T type groove is provided with a projection, and a connecting hole is set on the location structure of said shell fragment, and said connecting hole is enclosed within on the said projection.

[0012] preferably, also comprise a blade unlock button, said blade unlock button is arranged between said handle of a knife and the inner frame, said blade unlock button corresponding said shell fragment, push said blade unlock button, said blade unlock button extrusion elastic.

[0013] preferably, be convexly equipped with a blade Ka Tai on the said shell fragment.

[0014] compared with prior art, there is following technique effect in the utility model.

[0015] the utility model provides a kind of locking/unlocking blade structure, and this structure comprises a shell fragment, comprises at least one blade Ka Tai on the shell fragment, pushes this locking/unlocking blade structure, and blade just can break away from release from tool rest.This is simple in structure, easy to operate, and the exercisable zone of locking/unlocking blade structure is big, has realized changing the purpose of blade, has solved structure too complex and unhandy technical problem that existing cutting knife is changed blade.

[0016] the utility model also provides a kind of cutting knife that has the locking/unlocking blade structure; The locking/unlocking blade structure is applied on the cutting knife; After tool rest stretches out from inner frame; This cutting knife can be realized the purpose of quick release blade exchange blade through pressure-locking/the release blade structure.This cutting knife is simple in structure, no matter how to promote side pushing button, as long as satisfy the condition that tool rest stretches out from inner frame; No matter be to stretch out fully or not exclusively stretch out, the blade unlock button corresponding all the time shell fragment, push the blade unlock button; Blade unlock button extrusion elastic; Blade Ka Tai on the shell fragment comes from the U type breach disengaging of blade, so blade just can spin off from tool tip, is convenient for changing blade; Realize the purpose of cutting knife replacing blade, solved structure too complex and unhandy technical problem that existing cutting knife is changed blade.

[0017] description of drawings

Fig. 1 disassembles sketch map for a kind of structure that has the cutting knife of locking/unlocking blade structure of the utility model;

Fig. 2 is the structural representation of the tool tip of the utility model;

Fig. 3 A is the perspective view of the shell fragment of the utility model;

Fig. 3 B is the side view of the shell fragment of the utility model;

Fig. 4 is the tool tip structure of cover plate sketch map of the utility model;

Fig. 5 is the assembling sketch map of the utility model shell fragment and tool tip;

Fig. 6 is the assembling sketch map of the utility model blade and tool tip;

Fig. 7 is the assembling sketch map of the utility model tool tip cover plate, blade, shell fragment and tool tip;

Fig. 8 is the structural representation of the utility model blade unlock button extrusion elastic;

Fig. 9 is a kind of structural representation that has the cutting knife of locking/unlocking blade structure of the utility model.

[0018] specific embodiment

[0019], the utility model is done further detailed narration below in conjunction with accompanying drawing.

[0020] please refer to Fig. 3 A and Fig. 3 B, the utility model provides a kind of locking/unlocking blade structure, and this structure can be applied on any cutter, and the utility model does not limit.This locking/unlocking blade structure comprises a shell fragment 43; Shell fragment 43 is arranged on the tool rest 4; Be convexly equipped with at least one blade card platform 431 on the shell fragment 43, blade card platform 431 is stuck in the U type breach of blade 5, pushes shrapnel 43; Blade card platform 431 breaks away from from U type breach, and blade 5 can break away from release from tool rest 4 fast.

[0021] shell fragment 43 this comprise a support bar 432; Support bar 432 is positioned at the lower end of shell fragment 43, and the lower end of support bar 432 also comprises a location structure 433, and this location structure 433 is used for shell fragment 43 is fixedly connected on tool rest 4; This location structure 433 protrudes from shell fragment 43 backward; The purpose of this structure is to make the certain distance of maintenance between shell fragment 43 and the tool rest 4, is convenient to push shrapnel at 43 o'clock, the just release that spins off in the U type breach of blade 5 of the blade card platform 431 on the shell fragment 43.In the utility model, shell fragment 43 is positioned on the same plane with support bar 432, and location structure 433 is parallel with support bar 432, and location structure 433 is connected through an inclined-plane with support bar 432.One connecting hole 4331 also is set on the location structure 433, and location structure 433 is fixedly connected on the tool rest 4 through connecting hole 4331.

[0022] generally speaking; Two U type breach are set on the blade 5, so the structure more than two blade card platforms 431 can be set on the shell fragment 43, even a blade card platform 431 is set on the blade 5; Also can blade 5 be locked on the tool rest 4 firmly; In order to make the constructional simplicity of shell fragment 43, in the present embodiment, include only the blade card platform 431 of a locking blade 5 on the shell fragment 43.

[0023] the locking/unlocking blade structure is applied on the cutting knife,, specifies in conjunction with accompanying drawing.

[0024] please refer to Fig. 1 and Fig. 9, a kind of cutting knife that has the locking/unlocking blade structure comprises the handle of a knife, inner frame 3, tool rest 4 and the blade 5 that are combined by last handle of a knife 1 and following handle of a knife 2; Blade 5 is arranged on the tool rest 4 through the locking/unlocking blade structure, and the locking/unlocking blade structure comprises a shell fragment 43, is convexly equipped with at least one blade card platform 431 on the shell fragment 43; Tool rest 4 is movably arranged in the inner frame 3; Last handle of a knife 1 is separately positioned on inner frame 3 both sides with following handle of a knife 2, also comprises blade 5 unlock buttons, and blade 5 unlock buttons are arranged between handle of a knife and the inner frame 3; Push blade 5 unlock buttons; But blade 5 unlock button extrusion elastic 43, blade 5 breaks away from release from tool rest 4 fast, and then changes blade 5.

[0025] please refer to Fig. 2-Fig. 7; Tool rest 4 comprises tool tip 41 and tool tip cover plate 42; The accommodation space of tool tip 41 and tool tip cover plate 42 formation one ccontaining blade 5, blade 5 is stuck in this accommodation space through shell fragment 43, and promptly blade 5 is arranged on the tool tip 41; Lock it on the tool tip 41 with shell fragment 43, and blade 5 is fastened with tool tip cover plate 42.

[0026] blade card platform 431 is used to lock blade 5, and this blade card platform 431 is stuck in the U type breach of blade 5, generally speaking; Two U type breach are set on the blade 5, so the structure more than two blade card platforms 431 can be set on the shell fragment 43, even a blade card platform 431 is set on the blade 5; Also can blade 5 be locked on the tool rest 4 firmly; In order to make the constructional simplicity of shell fragment 43, in the present embodiment, include only the blade card platform 431 of a locking blade 5 on the shell fragment 43.

[0027] be arranged with a T type groove 411 in tool tip 41 comprises, i.e. the upper end horizontal stripe groove of this T type groove 411, the lower end is the vertical bar groove; Shell fragment 43 is arranged in this T type groove 411, corresponding, shell fragment 43 is identical with the shape of T type groove 411; Be that shell fragment 43 comprises a support bar 432; Support bar 432 is positioned at the lower end of shell fragment 43, and the lower end of support bar 432 also comprises a location structure 433, and this location structure 433 protrudes from shell fragment 43 backward; The purpose of this structure is to keep certain distance between the shell fragment 43 that makes and the T type groove 411; Be convenient to push shrapnel at 43 o'clock, the release that spins off in the U type breach of blade 5 of the blade card platform 431 on the shell fragment 43, location structure 433 is fixedly connected in the T type groove 411.In the present embodiment, the lower end of T type groove 411 is provided with a projection, and this projection plays an effect that is fixedly connected shell fragment 43; Corresponding; One connecting hole 4331 is set on the location structure 433 of shell fragment 43, and connecting hole 4331 is enclosed within on the projection, to realize the fixed connection purpose of shell fragment 43.

[0028] blade 5 is locked on the tool tip 41; Tool tip cover plate 42 covers on blade 5 and with tool tip 41 and is fixedly connected, and corresponding to the structure of shell fragment 43, a rail groove 421 is set on the tool tip cover plate 42; This rail groove 421 comes out the top of shell fragment 43 fully; The support bar 432 of shell fragment 43 lower ends can come out, and the purpose that the upper exposed of shell fragment 43 is come out is to be convenient to pass push shrapnel 43 operation of rail groove 421, to reach the purpose of release blade 5.

[0029] tool tip 41 also is provided with a thruster key 413 in the rear end, position of ccontaining blade 5; The keyseat of one installation side push button 413 promptly is set at the afterbody of tool tip 41; Thruster key 413 is fixedly installed in this keyseat; Thruster key 413 protrudes from tool tip 41 upper ends, promotes push button, and tool tip 41 moves in inner frame 3.

[0030] upper end of inner frame 3 is provided with the breach 412 that supplies thruster key 413 move left and right; In the utility model, inner frame 3 is to form with two boards, and this two boards has certain distance; And connect in the preceding upper end of this two boards, tool rest 4 moves between this two boards.

[0031] please refer to Fig. 8; In the present embodiment, on the following handle of a knife 2 installation through holes is set, blade release button 6 passes this installation through holes; And be movably arranged on this down between handle of a knife 2 and the inner frame 3 through a spring; Corresponding, a through hole also is set on the inner frame 3, be convenient to blade release button 6 and pass inner frame 3 and go extrusion elastic 43.In the present embodiment, blade release button 6 is a hollow, and blade release button 6 set inside are together the jack-post body; Coaxial cylinder protrudes from blade release button 6, and a spring is set on the coaxial cylinder, and promptly spring housing is on coaxial cylinder; In the present embodiment; The diameter of the through hole on the inner frame 3 is less than the diameter of the installation through holes on the following handle of a knife 2, i.e. blade release button 6 is between following handle of a knife 2 and inner frame 3, and coaxial cylinder can pass inner frame 3 and go extrusion elastic 43.After tool rest 4 stretches out, promote side pushing button in any case, as long as satisfy the condition that tool rest 4 stretches out from inner frame 3 from inner frame 3; No matter be to stretch out fully or not exclusively stretch out; Blade 5 unlock buttons corresponding all the time shell fragment 43, push blade 5 unlock buttons, blade 5 unlock button extrusion elastic 43; Blade card platform 431 on the shell fragment 43 comes from the U type breach disengaging of blade 5; So blade 5 just can spin off from tool tip 41, is convenient for changing blade 5, realized the purpose of cutting knife replacing blade 5.

[0032] a disclosed specific embodiment that is merely the application more than, but the application is not limited thereto, any those skilled in the art can think variation, all should drop in the application's the protection domain.

Claims (9)

1. a locking/unlocking blade structure is characterized in that, comprises a shell fragment; Said shell fragment is arranged on the tool rest; Be convexly equipped with at least one blade Ka Tai on the said shell fragment, said blade card decometer pushes shrapnel in the U of blade type breach; Said blade Ka Tai breaks away from from said U type breach, the release from the said tool rest fast of said blade.

2. locking/unlocking blade structure as claimed in claim 1; It is characterized in that said shell fragment comprises a support bar, said support bar is positioned at the lower end of said shell fragment; The lower end of said support bar also comprises a location structure, and this location structure protrudes from said shell fragment backward.

3. locking/unlocking blade structure as claimed in claim 2 is characterized in that, a connecting hole is set on the said location structure, and said location structure is fixed on the said tool rest through connecting hole.

4. locking/unlocking blade structure as claimed in claim 1 is characterized in that, is convexly equipped with a blade Ka Tai on the said shell fragment.

5. cutting knife that has the locking/unlocking blade structure; Comprise the handle of a knife, inner frame, tool rest and the blade that combine by last handle of a knife and following handle of a knife, it is characterized in that said blade passes through locking/unlocking blade structure locking/unlocking on said tool rest; Said tool rest is movably arranged in the said inner frame; Said inner frame is arranged in the said handle of a knife, pushes said locking/unlocking blade structure, and said blade breaks away from release from tool rest; Said locking/unlocking blade structure comprises a shell fragment; Said shell fragment is arranged on the said tool rest; Be convexly equipped with at least one blade Ka Tai on the said shell fragment, said blade card decometer pushes shrapnel in the U of said blade type breach; Said blade Ka Tai breaks away from from said U type breach, the release from the said tool rest fast of said blade.

6. the cutting knife that has the locking/unlocking blade structure as claimed in claim 5 is characterized in that, is arranged with a T type groove in the said tool rest; Said shell fragment is arranged in this T type groove; Said shell fragment comprises a support bar, and said support bar is positioned at the lower end of said shell fragment, and the lower end of said support bar also comprises a location structure; This location structure protrudes from said shell fragment backward, and said location structure is fixedly connected in the said T type groove.

7. the cutting knife that has the locking/unlocking blade structure as claimed in claim 6 is characterized in that, the lower end of said T type groove is provided with a projection, and a connecting hole is set on the location structure of said shell fragment, and said connecting hole is enclosed within on the said projection.

8. the cutting knife that has the locking/unlocking blade structure as claimed in claim 5; It is characterized in that; Also comprise a blade unlock button, said blade unlock button is arranged between said handle of a knife and the inner frame, said blade unlock button corresponding said shell fragment; Push said blade unlock button, said blade unlock button extrusion elastic.

9. the cutting knife that has the locking/unlocking blade structure as claimed in claim 5 is characterized in that, is convexly equipped with a blade Ka Tai on the said shell fragment.

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