CN218614198U - Art designing knife capable of quickly replacing blade - Google Patents

Abstract

The utility model belongs to the technical field of the cutter, a but art designing sword of quick replacement blade is related to, through set up the guide way on the second stalk portion, the one end that is close to out the edge of a knife in the guide way is equipped with first rake, and the one side that deviates from the cutting edge on the blade is equipped with the breach, but in the guide way is located of drive part back-and-forth movement, drive part's front end is equipped with the elastic arm, the bottom orientation of elastic arm the direction extension of breach has the drive division, and the drive division is located in the breach, the front end of elastic arm is formed with the second rake, and when promoting operating element, drive part can drive the blade orientation the direction of going out the edge of a knife removes, until the second rake with during first rake, first rake can extrude the second rake and make the elastic arm take place the bending to drive division on the elastic arm can follow break away from in the breach, can with the blade the drive part unblock can convenience of customers dismantle blade and drive part and change.

Description

Art designing knife capable of quickly replacing blade

Technical Field

The utility model belongs to the technical field of the cutter, a but art designer's sword of quick replacement blade is related to.

Background

In the current daily life, the utility knife plays an important role, and the utility knife is needed to be used in daily paper cutting, handwork, carving, unpacking and the like, thereby greatly facilitating the life of people. At present, the utility knife is mostly in a drawing structure and consists of a knife handle and a blade. The blade is mostly the bevel connection, can be in the same direction as the marking off rupture of blade body with blunt back, appears new blade point, facilitates the use. When the blade of the existing art designing knife is replaced, the plug is required to be taken out from the tail part, and then the blade and the pushing handle are withdrawn together, so that the blade is inconvenient to replace.

Disclosure of Invention

An object of the utility model is to prior art not enough, but provide an art designing sword of quick replacement blade, can promote the convenience of user when changing the blade.

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

a utility knife with quick replaceable blade, comprising:

a handle body, the handle body comprising: the cutter comprises a first handle part and a second handle part, wherein the first handle body and the second handle body are arranged oppositely, an accommodating space is formed between the first handle body and the second handle body, a cutter outlet is arranged at the front end of the accommodating space, a guide groove is arranged on one side, close to the first handle part, of the second handle part, the guide groove is arranged along the movement direction of the blade, and a first inclined part is arranged at one end, close to the cutter outlet, in the guide groove;

the blade can be arranged in the accommodating space in a forward and backward moving mode, can extend out of the accommodating space or retract into the accommodating space under the action of external force, and is provided with a notch on one side departing from the cutting edge;

the driving part is arranged in the guide groove in a forward and backward moving mode, an elastic arm is arranged at the front end of the driving part, a driving part extends from the bottom of the elastic arm towards the direction of the notch, the driving part is located in the notch, a second inclined part is formed at the front end of the elastic arm, and the position of the second inclined part is matched with that of the first inclined part;

the operating component is connected with the driving component and is used for driving the driving component to slide in the guide groove so as to enable the blade to move towards the direction of the knife outlet;

when the operating part is pushed, the driving part can drive the blade to move towards the direction of the knife outlet, and when the second inclined part abuts against the first inclined part, the first inclined part can extrude the second inclined part to enable the elastic arm to bend, so that the driving part on the elastic arm can be separated from the notch, and the blade is unlocked by the driving part.

Furthermore, be equipped with first locking trench and second locking trench on the terminal surface that is close to the second stalk portion on the first stalk portion, first locking trench is located the one end that is close to the edge of a knife on the first stalk portion, second locking trench is located keep away from on the first stalk portion the one end of edge of a knife and second locking trench sets gradually along the length direction of first stalk portion, just first locking trench and second locking trench all are located on the removal route of operating element, are used for spacingly the direction that the operating element is close to or keeps away from the edge of a knife removes.

Furthermore, one side of the operating component, which is close to the driving component, is provided with a first connecting portion, correspondingly, the driving component is also provided with a second connecting portion, and the first connecting portion is connected with the second connecting portion through a resetting component.

Furthermore, a pair of positioning columns extends towards the driving part on the operating part, the two positioning columns are located on two sides of the first connecting part, a pair of positioning holes are further formed in the driving part, the positions of the two positioning holes correspond to the positions of the two positioning columns, and the two positioning columns are located in the two positioning holes respectively.

Furthermore, a third locking slot position is arranged between the first locking slot position and the second locking slot position, and the third locking slot position, the first locking slot position and the second locking slot position are all located on the same horizontal line.

Furthermore, the handle body is provided with at least one of a straight screwdriver, a cross screwdriver, a hexagonal wrench and a bottle cap screwdriver.

Furthermore, an open slot is further formed in the first handle portion, and the open slot is opposite to the guide slot.

Furthermore, the bottom of the driving part is also provided with a limiting convex part, the limiting convex part is positioned at one end of the driving part, which is far away from the knife outlet, and the limiting convex part is abutted against the rear end of the blade.

The utility model has the advantages that:

(1) One side of the second handle portion close to the first handle portion is provided with a guide groove, one end of the guide groove close to the knife outlet is provided with a first inclined portion, one side of the blade, deviating from the cutting edge, is provided with a notch, the driving component can move back and forth and is arranged in the guide groove, the front end of the driving component is provided with an elastic arm, the bottom of the elastic arm faces towards the notch, a driving portion extends towards the direction of the notch, the driving portion is located in the notch, the front end of the elastic arm is provided with a second inclined portion, the position of the second inclined portion is matched with the position of the first inclined portion, when the operating component is pushed, the driving component can drive the blade to move towards the knife outlet direction, until the second inclined portion abuts against the first inclined portion, the first inclined portion can extrude the second inclined portion to enable the elastic arm to bend, so that the driving portion on the elastic arm can be separated from the notch, the blade can be unlocked, the driving component can be conveniently detached from the blade and replaced by a user, and convenience in replacement of the blade is improved.

(2) The utility knife in the technical scheme has the advantages that the number of parts is small, the number of mounting steps is small, the difficulty of the utility knife in production is reduced, the utility knife can be conveniently assembled by production personnel, and the reduction of the production efficiency of the utility knife caused by the utility knife with a complex structure is avoided.

Drawings

FIG. 1 is a schematic diagram of the explosion structure of the present invention;

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

FIG. 3 is a schematic view of the structure of the blade of the present invention in the closed locking position;

FIG. 4 isbase:Sub>A schematic cross-sectional view taken at the location A-A in FIG. 3;

FIG. 5 is a schematic view of the blade of the present invention in a closed and locked position;

FIG. 6 is a schematic structural view of the blade of the present invention at the time of unlocking;

FIG. 7 is a schematic cross-sectional view taken at the C-C position of FIG. 6;

FIG. 8 is a schematic view of the state of the blade in unlocking timing according to the present invention;

fig. 9 is a schematic view of the state of the blade and the driving member when they are unlocked in the present invention;

FIG. 10 is a schematic structural diagram of a driving member of the present invention;

fig. 11 is a schematic structural view of an operating member according to the present invention.

The labels in the figure are: 100-shank, 110-first shank, 111-first locking slot, 112-second locking slot, 113-third locking slot, 114-open slot, 120-second shank, 121-guide slot, 1211-first inclined portion; 200-blade, 210-notch; 300-driving part, 310-elastic arm, 311-second inclined part, 312-driving part, 320-second connecting part, 330-positioning hole, 340-limiting convex part; 400-operating part, 410-first connecting part, 420-positioning column, 430-projecting part; 500-reset means.

Detailed Description

Reference will now be made in detail to 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 function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used 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 those 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 being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present 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," and "fixed" are to be construed broadly, e.g., as fixed or detachable connections or as an integral part; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those of ordinary skill in the art.

Referring to fig. 1-8, a utility knife with a quick replaceable blade 200 includes: a handle body 100, a blade 200, a driving member 300, and an operating member 400; the handle body 100 includes: the cutting tool comprises a first handle part 110 and a second handle part 120, wherein the first handle body 100 and the second handle body 100 are arranged oppositely, an accommodating space is formed between the first handle body 100 and the second handle body 100, the front end of the accommodating space is provided with a cutting edge, one side of the second handle part 120 close to the first handle part 110 is provided with a guide groove 121, the guide groove 121 is arranged along the movement direction of the cutting blade 200, and one end of the guide groove 121 close to the cutting edge is provided with a first inclined part 1211; the blade 200 can be arranged in the accommodating space in a forward and backward moving mode, the blade 200 can extend out of the accommodating space or retract into the accommodating space under the action of external force, and a notch 210 is formed in one side, away from the cutting edge, of the blade 200; the driving member 300 is arranged in the guide groove 121 in a way that the driving member can move back and forth, the front end of the driving member 300 is provided with an elastic arm 310, the bottom of the elastic arm 310 extends towards the direction of the notch 210 to form a driving part 312, the driving part 312 is positioned in the notch 210, the front end of the elastic arm 310 is provided with a second inclined part 311, and the position of the second inclined part 311 is matched with the position of the first inclined part 1211; the operating component 400 is connected with the driving component 300 and is used for driving the driving component 300 to slide in the guide groove 121, so that the blade 200 can move towards the direction of the knife exit; when the operating member 400 is pushed, the driving member 300 can drive the blade 200 to move in the direction of the exit edge, and until the second inclined portion 311 abuts against the first inclined portion 1211, the first inclined portion 1211 can press the second inclined portion 311 to bend the elastic arm 310, so that the driving portion 312 on the elastic arm 310 can be separated from the notch 210, and the driving member 300 of the blade 200 can be unlocked.

By providing a guide groove 121 on the second handle 120 close to the first handle 110, providing a first inclined portion 1211 at one end of the guide groove 121 close to the incision edge, providing a notch 210 on the blade 200 away from the incision edge, providing a driving member 300 in the guide groove 121 capable of moving back and forth, providing an elastic arm 310 at the front end of the driving member 300, extending a driving portion 312 from the bottom of the elastic arm 310 toward the notch 210, providing the driving portion 312 in the notch 210, providing a second inclined portion 311 at the front end of the elastic arm 310, and providing the second inclined portion 311 at a position corresponding to the position of the first inclined portion 1211, when the operating member 400 is pushed, the driving member 300 can drive the blade 200 to move toward the incision edge until the second inclined portion 311 abuts against the first inclined portion, the first inclined portion 1211 can press the second inclined portion 311 to bend the elastic arm 310, so that the driving portion 312 on the elastic arm 310 can be separated from the notch 210, i.e., the driving member 300 can be unlocked, the user can conveniently replace the blade 200, thereby facilitating the user to replace the blade 200.

Referring to fig. 2 and 7, in one embodiment, a first locking groove 111 and a second locking groove 112 are disposed on an end surface of the first handle 110 close to the second handle 120, the first locking groove 111 is located at an end of the first handle 110 close to the knife-out edge, the second locking groove 112 is located at an end of the first handle 110 far from the knife-out edge and the second locking groove 112 are sequentially disposed along a length direction of the first handle 110, and the first locking groove 111 and the second locking groove 112 are both located on a moving path of the operating member 400 for limiting movement of the operating member 400 in a direction close to or far from the knife-out edge. By arranging the first locking groove position 111 and the second locking groove position 112, when the operating member 400 moves to the first locking groove position 111 or the second locking groove position 112, the first locking groove position 111 can play a role of limiting the operating member 400, so that the blade 200 can be locked when being opened or closed.

Referring to fig. 2, 7, 10 and 11, in one embodiment, a first connecting portion 410 is disposed on a side of the operating member 400 close to the driving member 300, and correspondingly, a second connecting portion 320 is disposed on the driving member 300, and the first connecting portion 410 is connected to the second connecting portion 320 through a reset member 500. By providing the first connecting portion 410 and the second connecting portion 320, the first connecting portion 410 is connected to the second connecting portion 320 through the reset member 500, so that when a user presses the operating member 400, the operating member 400 can move in a direction close to or away from the driving member 300, and thus when the operating member 400 moves to a position corresponding to the first locking slot 111 or the second locking slot 112, the operating member 400 is pressed, and the operating member 400 can be disengaged from the first locking slot 111 or the second locking slot 112.

Referring to fig. 10 and 11, in one embodiment, the operating component 400 has a pair of positioning posts 420 extending toward the driving component 300, the two positioning posts 420 are located on two sides of the first connecting portion 410, the driving component 300 further has a pair of positioning holes 330, the positions of the two positioning holes 330 correspond to the positions of the two positioning posts 420, and the two positioning posts 420 are located in the two positioning holes 330 respectively. Through setting up locating hole 330 and reference column 420 for when the user pressed operating part 400, locating hole 330 can play the positioning action, avoided operating part 400 to incline towards both sides, thereby guaranteed that the user can more stable control operating part 400.

Referring to fig. 2 and 7, in an embodiment, a third locking slot 113 is further disposed between the first locking slot 111 and the second locking slot 112, and the third locking slot 113, the first locking slot 111, and the second locking slot 112 are all located on the same horizontal line. Through setting up third locking trench 113 for when blade 200 stretched out part, third locking trench 113 can spacing operating means 400 remove, guaranteed that the art knife can carry out many gears as required and adjust.

Referring to fig. 11, in one embodiment, a protrusion 430 is further extended from the peripheral edge of the operating member 400; the projecting portion 430 is for abutting against a side wall of the first locking slot position 111, the second locking slot position 112, or the third locking slot position 113.

In one embodiment, the handle 100 is provided with at least one of a straight screwdriver, a cross screwdriver, a hexagonal wrench and a bottle cap opener. Through setting up a word bottle opener, cross bottle opener, hexagonal spanner and bottle lid bottle opener for the user can use the art designing sword as the instrument, for example, twist screw, open the bottle lid lamp, thereby promotes the variety of art designing sword function.

Referring to fig. 1, in one embodiment, the first handle 110 is further provided with an open slot 114, and the open slot 114 is opposite to the guide slot 121. The open slot 114 is provided to ensure that the user can move the operating member 400 towards the direction of the knife-out edge.

Referring to fig. 9, in one embodiment, the bottom of the driving member 300 is further provided with a limiting protrusion 340, the limiting protrusion 340 is located at an end of the driving member 300 away from the knife-out edge, and the limiting protrusion 340 abuts against the rear end of the blade 200. The position-limiting protrusion 340 is configured such that when the rear end of the blade is just abutted against the position-limiting protrusion 340, the driving portion 312 of the elastic arm 310 can enter the notch 210 of the blade 200.

The working principle is as follows:

referring to fig. 6 to 9, when the blade 200 needs to be unlocked, the blade 200 is located in the accommodating space, the operating member 400 is located in the second locking slot 112, the operating member 400 is pressed, the reset member 500 is compressed, the operating member 400 can be disengaged from the second locking slot 112 and pushes the operating member 400 toward the direction of the knife-out edge, since the driving portion 312 on the elastic arm 310 is located in the notch 210, the operating member 400 can drive the blade 200 to move toward the direction of the knife-out edge, when the operating member 400 moves to the position of the first locking slot 111, the pressing of the driving member 300 is stopped, and at this time, the operating member 400 can move into the first locking slot 111 under the action of the reset member, so that the blade 200 extends to a preset position to be positioned, and the opening and locking of the blade 200 are realized.

Referring to fig. 3 to 5, when the blade 200 needs to be closed and locked, the operation member 400 is pressed, the reset member is compressed, the operation member 400 can be disengaged from the first locking slot 111, and then the operation member 400 is pushed away from the direction of the knife-out edge, the operation member 400 can drive the blade 200 to move away from the direction of the knife-out edge, when the operation member 400 moves to the position of the second locking slot 112, the operation member 400 stops being pressed, and at this time, the operation member 400 can move to the second locking slot 112 under the action of the reset member, so that the blade 200 is retracted to the preset position to be positioned, and the closed locking of the blade 200 is realized.

Referring to fig. 5 to 9, when the blade 200 needs to be replaced, the blade 200 is located in the accommodating space, the operating member 400 is located in the second locking slot 112, the operating member 400 is pressed, the restoring member 500 is compressed, the operating member 400 can be disengaged from the second locking slot 112, the driving member 300 is pushed toward the knife-out direction, the driving portion 312 of the elastic arm 310 is located in the notch 210, so that the operating member 400 can drive the blade 200 to move toward the knife-out direction, when the operating member 400 moves to the position of the first locking slot 111, the second inclined portion 311 can abut against the first inclined portion 1211, then the operating member 400 is pushed further toward the knife-out direction, the first inclined portion 1211 can press the second inclined portion 311 to bend the elastic arm 310, so that the driving portion 312 of the elastic arm 310 can be disengaged from the notch 210, so as to unlock the driving member 300 of the blade 200, then the blade 200 is taken out from the knife-out position, the blade 200 to be replaced is inserted into the accommodating space from the knife-out opening, when the blade 200 to be replaced, the blade 200 is inserted into the accommodating space, and the blade 200 is pushed into the elastic arm 340, and the blade 200 is pushed into the notch 200, so that the blade 200 is just away from the blade-out end, and the blade 200 is pushed into the blade-out end of the elastic arm 340, so that the blade 200 is pushed straight protrusion 340.

When assembling the utility knife, the utility knife is first put into the second handle portion 120, and the driving part 300 is placed in the guide groove 121 while the driving portion 312 of the elastic arm 310 is fitted to the notch 210 of the blade 200, and then the operating part 400 is fitted to the driving part 300 by the restoring part, so that the first connecting portion 410 of the operating part 400 can be connected to the second connecting portion 320 by the restoring part. Then, the second handle part 120 is mounted on the first handle part 110, and the second handle part 120 and the first handle part 110 are fixed by screws through the predetermined screw holes, at which time the operating member 400 can be located at the open slot 114 to complete the mounting of the utility knife.

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 (8)

1. An art knife with a quick replaceable blade, comprising:

a shank body (100), the shank body (100) comprising: the cutting tool comprises a first handle part (110) and a second handle part (120), wherein the first handle part (110) and the second handle part (120) are arranged oppositely, an accommodating space is formed between the first handle part (110) and the second handle part (120), the front end of the accommodating space is provided with an incision, one side, close to the first handle part (110), of the second handle part (120) is provided with a guide groove (121), the guide groove (121) is arranged along the movement direction of the cutting blade (200), and one end, close to the incision, in the guide groove (121) is provided with a first inclined part (1211);

the blade (200) can be arranged in the accommodating space in a back-and-forth moving mode, the blade (200) can extend out of the accommodating space or retract into the accommodating space under the action of external force, and a notch (210) is formed in one side, away from the cutting edge, of the blade (200);

the driving component (300) is arranged in the guide groove (121) in a forward and backward moving mode, an elastic arm (310) is arranged at the front end of the driving component (300), a driving part (312) extends from the bottom of the elastic arm (310) towards the direction of the notch (210), the driving part (312) is located in the notch (210), a second inclined part (311) is formed at the front end of the elastic arm (310), and the position of the second inclined part (311) is matched with that of the first inclined part (1211);

the operating part (400) is connected with the driving part (300) and used for driving the driving part (300) to slide in the guide groove (121) so that the blade (200) can move towards the direction of the knife outlet;

when the operating part (400) is pushed, the driving part (300) can drive the blade (200) to move towards the direction of the knife outlet edge, and when the second inclined part (311) abuts against the first inclined part (1211), the first inclined part (1211) can press the second inclined part (311) to enable the elastic arm (310) to bend, so that the driving part (312) on the elastic arm (310) can be separated from the notch (210) to unlock the driving part (300) of the blade (200).

2. The utility knife of claim 1, wherein the first shank portion (110) has a first locking groove (111) and a second locking groove (112) on its end surface adjacent to the second shank portion (120), the first locking groove (111) is located at an end of the first shank portion (110) adjacent to the exit edge, the second locking groove (112) is located at an end of the first shank portion (110) away from the exit edge, and the first locking groove (111) and the second locking groove (112) are both located in a path of movement of the operating portion (400) piece for limiting the movement of the operating portion (400) piece in a direction toward or away from the exit edge.

3. A utility knife with quickly replaceable blade according to claim 2, characterized in that the operating part (400) is provided with a first connecting part (410) on the side close to the driving part (300), and correspondingly, the driving part (300) is provided with a second connecting part (320), and the first connecting part (410) is connected with the second connecting part (320) through a resetting part.

4. The utility knife of claim 3, wherein the operating portion (400) has a pair of positioning posts (420) extending toward the driving portion (300), the two positioning posts (420) are located on two sides of the first connecting portion (410), the driving portion (300) further has a pair of positioning holes (330), the two positioning holes (330) are located corresponding to the two positioning posts (420), and the two positioning posts (420) are located in the two positioning holes (330).

5. The utility knife of claim 2, wherein a third slot (113) is disposed between the first (111) and second (112) slots, and the third (113), first (111) and second (112) slots are all located on the same horizontal line.

6. The utility knife of claim 1, wherein the handle (100) is provided with at least one of a screwdriver, a cross screwdriver, a hexagonal wrench, and a bottle opener.

7. A quick-change blade utility knife according to claim 1, wherein the first handle portion (110) is further provided with an open slot (114), the open slot (114) being opposite to the guide slot (121).

8. The utility knife of claim 1, characterized in that the bottom of the driving part (300) is further provided with a limit protrusion (340), the limit protrusion (340) is located at one end of the driving part (300) far away from the knife outlet, and the limit protrusion (340) abuts against the rear end of the blade.

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