CN212887704U - Paper cutter capable of being locked and unlocked quickly - Google Patents

Abstract

The utility model relates to a technical field of cutter, more specifically relates to a but quick locking and unblock paper cutter that intervenes, including dismantling the first handle of a knife and the second handle of a knife of connection: the first cutter handle comprises a first handle body, a push button and a lock catch, the lock catch is rotationally connected in the first handle body, the push button is connected with the first handle body in a sliding mode, the push button is provided with a first limiting part, and the first handle body is provided with a second limiting part abutted against the first limiting part; the second handle comprises a second handle body, a blade and a sliding lock, the blade is fixed at one end of the sliding lock, the sliding lock is connected with the second handle body in a sliding mode, and a second clamping part is arranged at the other end of the sliding lock; the lock catch is provided with a first convex part and a first clamping part, the push button is provided with a first clamping groove, the first convex part extends into the first clamping groove, and the first clamping part is buckled with the second clamping part. The utility model discloses but the promotion pushes away the button unblock fast, promotes the sliding lock and can lock fast, and is easy and simple to handle, and the security is good, and accords with a great deal of user's use custom, has better practicality and suitability.

Description

Paper cutter capable of being locked and unlocked quickly

Technical Field

The utility model relates to a technical field of cutter, more specifically relates to a but quick locking and unblock cutter of mediaing.

Background

Conventional paper cutters are generally classified into stationary, folding and telescopic types, and are generally used for cutting paper, cloth, leather, etc. The telescopic cutting knife is generally characterized in that a pressing sliding block is utilized to push a blade hidden in a knife handle to stretch out, but before and after the blade stretches out, the blade cannot be locked, so that looseness can occur under certain conditions, the use is affected, and potential safety hazards can be generated. Therefore, there is a need for a knife that can lock and unlock the blade to prevent injury due to malfunction.

Patent CN201304651 discloses a cutting knife, which comprises a knife handle, a knife rest, a blade, a worm gear, a rocker arm, a pin shaft and a return torsion spring, wherein a groove cavity for mounting the above components is arranged on the knife handle, and the groove cavity penetrates through the left knife handle to form an opening for allowing a finger to be inserted. The inner end of the tool rest is provided with a section of worm, the pin shaft is transversely arranged in a groove cavity of the tool holder, the two rocker arms are hung on the pin shaft in a penetrating mode and can rotate around the pin shaft, the worm wheel is arranged between the two rocker arms and axially penetrates through the two rocker arms, the lower portion of the worm wheel is meshed with the worm to form locking, one side face of the worm wheel is exposed in an opening of the left tool holder, the worm wheel can be pushed by external force to swing inwards to be separated from the worm to achieve unlocking, and the two return torsion springs are respectively arranged at the two ends of the pin. Although the cutting knife in the scheme can be quickly locked and unlocked by changing the matching condition between the worm wheel and the worm, the operation process of changing the state of the worm wheel is independent from the operation process of pushing out the blade, the operation is inconvenient, and the use habit of a plurality of consumers is not met.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome not enough among the prior art, provide a but quick locking and unblock paper cutter, but quick locking and unblock blade, it is easy and simple to handle, can accord with a great deal of consumer's use custom.

In order to solve the technical problem, the utility model discloses a technical scheme is:

the utility model provides a but quick locking and unblock paper knife that intervenes, including first handle of a knife and the second handle of a knife of dismantling the connection: the first cutter handle comprises a first handle body, a push button and a lock catch, the lock catch is rotatably connected in the first handle body, the push button is connected with the first handle body in a sliding mode, the push button is provided with a first limiting part, and the first handle body is provided with a second limiting part abutted against the first limiting part; the second handle comprises a second handle body, a blade and a sliding lock, the blade is fixed at one end of the sliding lock, the sliding lock is connected with the second handle body in a sliding mode, and a second clamping part is arranged at the other end of the sliding lock; the lock catch is provided with a first convex part and a first clamping part, the push button is provided with a first clamping groove, the first convex part extends into the first clamping groove, and the first clamping part is buckled with the second clamping part.

The utility model discloses the paper cutter that can lock fast and unblock, first handle of a knife and second handle of a knife can be dismantled, the equipment of the paper cutter of being convenient for and the change of blade; when the push button is pushed towards the blade, the limiting action of the first limiting part and the second limiting part is released, and simultaneously, under the action of the first clamping groove and the first convex part, the lock catch rotates to release the buckling between the first clamping part and the slide lock, and then the lock is unlocked; when the sliding lock is pushed in the opposite direction, the sliding lock is abutted against the push button and pushes the push button to move together, the first limiting part and the second limiting part play a limiting role, and meanwhile, under the action of the first clamping groove and the first convex part, the lock catch rotates to enable the first clamping part and the second clamping part to be buckled with each other, and at the moment, the locking is realized. The utility model discloses promote to push away the button and can unblock, promote the sliding lock and can lock, it is easy and simple to handle, and have better security.

Further, the first handle body comprises a first outer handle body and a first inner handle body arranged inside the first outer handle body, the lock catch is rotatably connected inside the first inner handle body, and the push button is connected with the first outer handle body in a sliding mode.

Further, the hasp is equipped with the rotation axis, handle body is equipped with the rotatory hole of being connected with the rotation axis rotation in the first.

Further, rotation axis periphery cover is equipped with the torsional spring, the torsional spring be equipped with the first free end of the internal wall butt of first inner handle and with the second free end of hasp inner wall butt.

Furthermore, a plurality of first sliding blocks are arranged on the side wall of the push button, and a first guide rail connected with the first sliding blocks in a sliding mode is arranged on the inner wall of the first outer handle body.

Furthermore, a through hole which slides with the upper part of the push button is arranged at the top of the first outer handle body, and the width dimension of the through hole is larger than that of the push button.

Furthermore, the end part of the first inner handle body is provided with a cutter hole matched with the blade, and the end surface of the first handle body, which is far away from the second handle body, can be attached to the end surface of the second handle body, which is far away from the first handle body.

Further, the second handle body comprises a second outer handle body and a second inner handle body arranged inside the second outer handle body, and the sliding lock is connected with the second inner handle body in a sliding mode.

Furthermore, the two sides of the sliding lock are provided with third convex parts, the second inner handle body is provided with a plurality of third clamping grooves which are uniformly distributed, and the third convex parts can be clamped with the third clamping grooves.

Furthermore, a second convex part is arranged at the end part of the first handle body, a second clamping groove is arranged at the end part of the second handle body, the end part of the first handle body is sleeved with the end part of the second handle body, and the second convex part can be clamped with the second clamping groove.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model discloses the quick locking and unblock of paper cutter promotes the push button and can unblock fast, promotes the slide lock and can lock fast, easy and simple to handle, and the security is good, and accords with a great deal of user's use custom, has better practicality and suitability; just the utility model discloses it is removable that first handle of a knife and second handle of a knife of paper knife are between, the equipment and the dismantlement of the paper knife of being convenient for between, and the rupture of the blade of being convenient for, can improve the security of blade rupture operation.

Drawings

Fig. 1 is an exploded view of a quick locking and unlocking media knife according to the present invention;

FIG. 2 is a disassembled schematic view of the first and second handles of the paper knife;

FIG. 3 is a perspective view of the knife of the present invention that can be locked and unlocked quickly;

FIG. 4 is a schematic view of the structure of the paper knife in the locked state;

FIG. 5 is a schematic structural view of the paper knife in an unlocked state;

in the drawings: 1-a first tool shank; 11-a first shank; 111-a second limiting part; 112-a first outer handle body; 113-a first inner handle body; 114-a rotation hole; 115-perforation; 116-a knife hole; 117-second projection; 12-a push button; 121-a first limiting part; 122-a first card slot; 123-a first slider; 13-locking; 131-a first projection; 132-a first engaging portion; 133-axis of rotation; 134-a third limiting part; 135-a fourth limiting part; 136-torsion spring; 2-a second tool shank; 21-a second shank; 211-a second outer handle body; 212-a second inner shank body; 213-long groove; 214-a third card slot; 215-a second card slot; 22-a blade; 23-a slide lock; 231-a second engaging portion; 232-third projection.

Detailed Description

The present invention will be further described with reference to the following embodiments. Wherein the showings are for the purpose of illustration only and are shown by way of illustration only and not in actual form, and are not to be construed as limiting the present patent; for a better understanding of the embodiments of the present invention, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.

The same or similar reference numerals in the drawings of the embodiments of the present invention correspond to the same or similar parts; in the description of the present invention, it should be understood that if there are the terms "upper", "lower", "left", "right", etc. indicating the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, it is only for convenience of description and simplification of the description, but it is not intended to indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore the terms describing the positional relationship in the drawings are only for illustrative purposes and are not to be construed as limitations of the present patent, and those skilled in the art can understand the specific meanings of the terms according to specific situations.

Examples

Fig. 1 to 5 show that the utility model discloses a but embodiment of quick locking and unblock paper cutter, including first handle of a knife 1 and the second handle of a knife 2 that can dismantle the connection: the first knife handle 1 comprises a first handle body 11, a push button 12 and a lock catch 13, the lock catch 13 is rotatably connected in the first handle body 11, the push button 12 is slidably connected with the first handle body 11, the push button 12 is provided with a first limiting part 121, and the first handle body 11 is provided with a second limiting part 111 abutted against the first limiting part 121; the second knife handle 2 comprises a second handle body 21, a blade 22 and a sliding lock 23, the blade 22 is fixed at one end of the sliding lock 23, and the sliding lock 23 is connected with the second handle body 21 in a sliding manner; the lock catch 13 has a first protrusion 131 and a first engaging portion 132, the push button 12 has a first engaging groove 122, the first protrusion 131 partially extends into the first engaging groove 122, and the first engaging portion 132 is engaged with the other end of the slide lock 23. Specifically, the second engaging portion 231 is disposed at the other end of the slide lock 23 in the embodiment, the first engaging portion 132 can be fastened with the second engaging portion 231, the fastening form of the first engaging portion 132 and the second engaging portion 231 is not limited, and the fastening form capable of preventing the first handle body 11 and the second handle body 21 from being separated can be applied to the present invention.

In this embodiment, the pushing button 12 is pushed toward the blade 22 to release the position-limiting function of the first position-limiting part 121 and the second position-limiting part 111, and simultaneously, under the action of the first engaging groove 122 and the first protrusion 131, the locking catch 13 rotates to release the engagement between the first engaging part 132 and the sliding lock 23, and at this time, the locking is unlocked, as shown in fig. 5; when the slide lock 23 is pushed in the opposite direction, the slide lock 23 abuts against the push button 12 and pushes the push button 12 to move together, the first limiting portion 121 and the second limiting portion 111 perform the limiting function, and simultaneously, under the action of the first engaging groove 122 and the first protrusion 131, the lock catch 13 rotates to enable the first engaging portion 132 and the slide lock 23 to be engaged with each other, and at this time, the lock is locked, as shown in fig. 4.

In one embodiment, the first handle 11 includes a first outer handle 112 and a first inner handle 113 disposed inside the first outer handle 112, the lock 13 is rotatably connected inside the first inner handle 113, and the push button 12 is slidably connected to the first outer handle 112, as shown in fig. 1. The first inner handle body 113 is nested inside the first outer handle body 112, and the first inner handle body 113 and the first outer handle body 112 can be fixed in a sleeving, clamping, embedding mode and the like, so that the first inner handle body 113 and the first outer handle body 112 can be assembled and disassembled conveniently.

In one embodiment, the latch 13 is provided with a rotating shaft 133, the first inner handle 113 is provided with two sets of rotating holes 114 rotatably connected with the rotating shaft 133, the latch 13 rotates around the rotating shaft 133, the two sets of rotating holes 114 are provided, the rotating shaft 133 penetrates through the latch 13 and extends out of two side surfaces of the latch 13, and two ends of the rotating shaft 133 are respectively inserted into the rotating holes 114 on the two side surfaces of the first inner handle 113, so that the rotating stability of the latch 13 can be effectively ensured.

The first convex part 131 and the first engaging part 132 of the latch 13 form a swing link structure; the main body of the push button 12 is in a pi-shaped structure, and the first locking groove 122 arranged on the push button 12 is located at the lower part of the pi-shaped structure. A third limiting portion 134 capable of being abutted and limited by the left leg of the pi-shaped structure is formed on the left side of the first convex portion 131, a fourth limiting portion 135 capable of being abutted and limited by the right leg of the pi-shaped structure is formed on the right side of the first convex portion 131, and the third limiting portion 134, the fourth limiting portion 135 and the pi-shaped structure jointly determine the rotation angle of the latch 13. The bottom of the right leg of the "pi" shaped structure is a fulcrum, which can abut against the end of the second engaging portion 231. Thus, when the slide lock 23 is pushed backwards, the slide lock 23 can drive the push button 12 to move backwards together; when the push button 12 is pushed forward, the push button 12 can drive the slide lock 23 to move forward together. It can be seen that, in the present embodiment, only the push button 12 or the slide lock 23 needs to be pushed during the unlocking or locking operation, which is simple and convenient to operate and is consistent with the usage habit of the user.

In addition, be equipped with a cavity in the hasp 13, the cavity encircles in rotation axis 133 periphery, and rotation axis 133 periphery cover is equipped with torsional spring 136, and torsional spring 136 is arranged in the cavity in, and torsional spring 136 is equipped with the first free end with the first interior handle body 113 inner wall butt and the second free end with hasp 13 inner wall butt. The torsion spring 136 is preferably provided to ensure the stability of the rotation process of the lock catch 13 and facilitate the movement of the push button 12, and is not intended as a limiting rule of the present invention.

In one embodiment, the push button 12 has a plurality of first sliding blocks 123 on its side wall, and the first outer handle 112 has a first guiding rail slidably connected to the first sliding blocks 123 on its inner wall. The first guide rail defines the movement track of the first slider 123, that is, defines the sliding track of the push button 12, the first slider 123 is disposed on two sides of the push button 12 in this embodiment, for obtaining better movement smoothness, the first slider 123 of this embodiment can be disposed in four groups, but the number of the first slider 123 is not taken as the limiting regulation of the present invention. The top of the first outer handle 112 is provided with a through hole 115 sliding on the upper portion of the push button 12, the width of the through hole 115 is larger than the width of the push button 12, two ends of the through hole 115 can abut against the end of the push button 12 to limit the movement stroke of the push button 12, and the width must meet the stroke requirement of the first limiting portion 121 and the second limiting portion 111 for locking and unlocking in a matching manner. In addition, in order to ensure the beautiful appearance of the paper knife, the upper end surface of the push button 12 of the present embodiment is flush with the upper end surface of the first outer handle 112.

In one embodiment, the end of the first inner handle 113 is provided with a tool hole 116 matching with the blade 22, and the end surface of the first handle 11 away from the second handle 21 can be attached to the end surface of the second handle 21 away from the first handle 11. The blade 22 of the paper knife has a multi-section structure, and a crease is arranged between each section of structure to facilitate the blade 22 to be broken, and the crease always forms a certain included angle with the blade edge direction. Therefore, in the present embodiment, the end surface of the first handle 11 away from the second handle 21 and the end surface of the second handle 21 away from the first handle 11 are both provided with an inclination angle equal to the included angle, when the blade 22 needs to be broken, the first handle 11 and the second handle 21 are separated, the portion of the blade 22 that needs to be broken is inserted into the blade hole 116, the end surfaces of the first handle 11 and the second handle 21 are attached to apply a force to the first handle 11 and the second handle 21, so that the blade 22 can be broken, the operation is simple, time and labor are saved, and the injury to the user when the blade 22 is broken can be avoided.

In one embodiment, the second handle body 21 includes a second outer handle body 211 and a second inner handle body 212 disposed inside the second outer handle body 211, and the slide lock 23 is slidably coupled to the second inner handle body 212. The second inner handle body 212 is nested inside the second outer handle body 211, and the second inner handle body 212 and the second outer handle body 211 can be fixed in a sleeving, clamping, embedding mode and the like, so that the second inner handle body 212 and the second outer handle body 211 can be assembled and disassembled conveniently. The upper part of the second outer handle body 211 is provided with a long groove 213, and the sliding lock 23 can slide along the long groove 213; for ease of operation, the upper end surface of the slide lock 23 is higher than the upper end surfaces of the second inner handle body 212 and the second outer handle body 211.

In one embodiment, the slide lock 23 has third protrusions 232 on both sides thereof, the second inner handle 212 has a plurality of third slots 214 uniformly distributed, and the third protrusions 232 are engageable with the third slots 214; with this arrangement, when the blade 22 is pushed forward, the third protrusion 232 and the third engaging groove 214 function to position the blade 22, prevent the blade 22 from moving backward and affecting the operation when the paper cutter is used, and also function to prevent the blade 22 from sliding out smoothly, thereby preventing the user from being hurt carelessly.

In one embodiment, the end of the first handle 11 is provided with a second protrusion 117, the end of the second handle 21 is provided with a second slot 215, the end of the first handle 11 is sleeved with the end of the second handle 21, and the second protrusion 117 can be engaged with the second slot 215. The second protrusion 117 is specifically disposed on the inner wall of the first outer handle 112, the second engaging groove 215 is specifically disposed on the inner wall of the second outer handle 211, and the second protrusion 117 and the second engaging groove 215 cooperate to form a detachable connection mode, so that the first handle 11 can be pulled out with force when the blade 22 needs to be broken. It should be noted that, only in the unlocked state, the first handle body 11 can be pulled out to separate the first handle body 11 from the second handle body 21; in the locked state, the first engaging portion 132 and the second engaging portion 231 are engaged with each other, and thus the first grip body 11 and the second grip body 21 cannot be separated from each other. In addition, the second protrusion 117 and the second catching groove 215 of the present embodiment may be provided in two or more sets in order to facilitate stable assembly between the first stem body 11 and the second stem body 21. When two sets of the second protrusions 117 and the second locking grooves 215 are provided, the two sets of the first protrusions 117 are symmetrically arranged about the axis of the first handle body 11, and the two sets of the second locking grooves 215 are symmetrically arranged about the axis of the second handle body 21, so that the structure is simple, and the operation is labor-saving.

In the detailed description of the embodiments, various technical features may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

It is obvious that the above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not limitations to the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims (10)

1. A but quick locking and unblock paper knife that intervenes, characterized by, including first handle of a knife (1) and second handle of a knife (2) of dismantling the connection: the first knife handle (1) comprises a first handle body (11), a push button (12) and a lock catch (13), the lock catch (13) is rotatably connected into the first handle body (11), the push button (12) is in sliding connection with the first handle body (11), the push button (12) is provided with a first limiting part (121), and the first handle body (11) is provided with a second limiting part (111) abutted against the first limiting part (121); the second knife handle (2) comprises a second handle body (21), a blade (22) and a sliding lock (23), the blade (22) is fixed at one end of the sliding lock (23), the sliding lock (23) is connected with the second handle body (21) in a sliding mode, and a second clamping portion (231) is arranged at the other end of the sliding lock (23); the lock catch (13) is provided with a first convex portion (131) and a first clamping portion (132), the push button (12) is provided with a first clamping groove (122), the first convex portion (131) partially extends into the first clamping groove (122), and the first clamping portion (132) can be buckled with the second clamping portion (231).

2. A quick-lock and-unlock paperknife according to claim 1, wherein said first handle (11) comprises a first outer handle (112) and a first inner handle (113) disposed inside said first outer handle (112), said lock catch (13) is rotatably connected inside said first inner handle (113), and said push button (12) is slidably connected with said first outer handle (112).

3. The quick lockable and unlockable media knife according to claim 2, wherein the catch (13) is provided with a rotation shaft (133), and the first inner handle body (113) is provided with a rotation hole (114) rotatably connected to the rotation shaft (133).

4. The knife assembly of claim 3, wherein the rotating shaft (133) is sleeved with a torsion spring (136), and the torsion spring (136) has a first free end abutting against the inner wall of the first inner handle (113) and a second free end abutting against the inner wall of the lock catch (13).

5. The quick lockable and unlockable media knife according to claim 2, wherein the push button (12) has a plurality of first sliders (123) on a side wall thereof, and the first outer handle body (112) has a first guide rail slidably connected to the first sliders (123) on an inner wall thereof.

6. The quick lockable and unlockable media knife according to claim 2, wherein the first outer handle (112) is provided at the top with a through hole (115) sliding on the top of the push button (12), the through hole (115) having a width dimension greater than the width dimension of the push button (12).

7. A quick-lock and-unlock paper knife according to any of claims 2 to 6, characterized in that the end of the first inner handle body (113) is provided with a knife hole (116) matching with the blade (22), and the end surface of the first handle body (11) far away from the second handle body (21) can be abutted with the end surface of the second handle body (21) far away from the first handle body (11).

8. A quick-lock and-unlock paperknife according to claim 1, wherein said second handle (21) comprises a second outer handle (211) and a second inner handle (212) disposed inside said second outer handle (211), said slide lock (23) being slidably connected to said second inner handle (212).

9. The quick-locking and quick-unlocking paper knife according to claim 8, wherein both sides of the slide lock (23) are provided with third protrusions (232), the second inner handle body (212) is provided with a plurality of uniformly distributed third clamping grooves (214), and the third protrusions (232) can be clamped with the third clamping grooves (214).

10. The quick-locking and quick-unlocking paper knife according to claim 1, wherein a second protrusion (117) is arranged at the end of the inner wall of the first handle body (11), a second clamping groove (215) is arranged at the end of the second handle body (21), the end of the inner wall of the first handle body (11) is sleeved with the end of the second handle body (21), and the second protrusion (117) can be clamped with the second clamping groove (215).

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