CN218659199U - Cutter with replaceable blade - Google Patents

Abstract

The utility model relates to a cutter technical field, more specifically relates to a can replace cutter of blade, including handle, blade, mount, the mount with the handle is articulated, the blade is installed in the handle, is equipped with first spacing portion on the mount, is equipped with the spacing portion of second on the blade, first spacing portion with the spacing portion joint of second is spacing, is equipped with the hasp on the handle, the hasp can lock with the mount joint. The utility model aims at providing a cutter that can conveniently unblock easily for overcoming the current cutter unblock of replaceable blade is convenient or convenient problem inadequately, not only laborsaving but also safe and difficult the losing that causes the accessory when replacing the blade.

Description

Cutter with replaceable blade

Technical Field

The utility model relates to a cutter technical field, more specifically relates to a can replace cutter of blade.

Background

The blade of different structures need to be used in different use occasions, the cutter of the replaceable blade among the prior art needs to be locked with the handle in order to reach the locking fixed to the blade, adopts to set up limit structure in order to realize the locking to the blade usually in the handle, and this kind of locking structure need directly to carry out the unblock to the blade application of force through the mode of stirring the blade or external force push-and-pull blade when the unblock. The unlocking mode needs to apply large force to the blade, which causes inconvenience and insecurity in use, and the locking structure locks and fixes the blade and the handle through screws.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a cutter that can conveniently unblock easily for overcoming the current cutter unblock of replaceable blade is convenient or convenient problem inadequately, not only laborsaving but also safe and difficult the losing that causes the accessory when replacing the blade.

In order to achieve the above purpose, the utility model adopts the technical scheme that: the utility model provides a can replace cutter of blade, includes handle, blade, mount, the mount with the handle is articulated, the blade is installed in the handle, is equipped with first spacing portion on the mount, is equipped with the spacing portion of second on the blade, first spacing portion with the spacing portion joint of second is spacing, is equipped with the hasp on the handle, the hasp can be locked with the mount joint.

In the scheme, the blade and the handle are locked and fixed by the fixing frame, specifically, the fixing frame is hinged with the handle through the fixing frame, the fixing frame is locked by the lock catch, and meanwhile, the first limiting part on the fixing frame is clamped and limited with the second limiting part on the blade, so that the fixing frame can lock and fix the blade; the in-process of whole blade replacement need not to carry out the application of force to the blade, can realize the unblock and the change of blade, and is very safe, moreover, at the in-process of whole blade unblock and change, all the other accessories except the blade all keep connected state, are difficult to cause losing of accessory. Therefore, the function of easily and conveniently replacing the blade is realized.

Furthermore, the fixing frame and the lock catch clamping position are provided with elastic clamping grooves for accommodating the lock catch. Preferably, the elastic clamping groove can be made of elastic materials, an accommodating space of the lock catch is arranged on the elastic clamping groove, the elastic clamping groove can be a semi-arc-shaped clamping groove, and the lock catch can be of a circular structure; when the lock catch is sunk into the elastic clamping groove, the lock catch limits the elastic clamping groove, so that the elastic clamping groove is not easy to separate from the lock catch, the fixing frame cannot rotate relative to the handle, the first limiting part and the second limiting part are always clamped and limited, and the fixing frame is locked and fixed to the blade; when force is applied to the fixing frame, the fixing frame rotates relative to the handle, the elastic clamping groove is extruded after being stressed due to the elastic effect, the contact area between the elastic clamping groove and the lock catch is further reduced, the elastic clamping groove can be separated from the lock catch along with the increasing force acting on the fixing frame, the fixing frame can rotate relative to the handle, and after the fixing frame rotates, the first limiting portion is separated from the second limiting portion, so that the limitation between the fixing frame and the blade is removed, the blade can be easily pulled out, and the blade can be conveniently replaced. Of course, within the scope of the knowledge of those skilled in the art, the elastic slot and the latch may adopt other structures to facilitate the engagement and disengagement.

Furthermore, the fixing frame is close to the side of the elastic clamping groove, and an avoiding groove which can facilitate the elastic clamping groove to perform position deviation under an extrusion state is further arranged on the side of the elastic clamping groove. The avoiding groove provides an avoiding space for the elastic clamping groove when being extruded by stress, so that the elastic clamping groove can deviate relative to the original position, the elastic clamping groove deviates to the position of the avoiding groove from the original position, the elastic clamping groove is convenient to separate from the lock catch, the fixing frame can rotate relative to the handle, and then the blade can separate from the fixing frame and the handle to be replaced. Preferably, the avoiding groove can be a semi-open groove, so that the elastic clamping groove can swing to a certain extent after being extruded.

Further, the first limiting part is a cam, the second limiting part is a groove, and the cam can be clamped and limited with the groove. By adopting the cam structure, when the blade is locked, the stress is pulled outwards, the cam is pressed in the groove more tightly, the anti-slip force applied to the blade is larger, and the blade is assembled with the fixing frame more firmly, so that the damage of the cutter caused by the fact that the blade is separated from the handle when stressed can be avoided.

Further, still include first gasket and second gasket, first gasket with the second gasket all install in the handle and be located the blade both sides, the mount is with first gasket and/or second gasket butt. The first gasket and the second gasket both have a supporting effect on the blade, the gap between the blade and the handle is filled up through the first gasket and the second gasket, and the first gasket and the second gasket can increase the friction force between the blade and the handle, so that the blade and the handle are indirectly connected more stably; moreover, when blades of different types or different thicknesses are assembled, the first gasket and/or the second gasket can be replaced so as to meet the installation requirement of the blades on the handle. On the other hand, the first gasket or the second gasket can be structurally arranged to have a fixing effect on the blade. The first gasket and/or the second gasket can be in butt joint, clamping joint or threaded connection with the handle.

Furthermore, a first installation position and a second installation position are respectively arranged on the first gasket, the blade is inserted into the first installation position and then is inserted into the first gasket, and the fixing frame is abutted against the second installation position. The first mounting position is used for mounting the blade, so that the blade has a good mounting effect when mounted on the first gasket, and particularly, the blade and the first mounting position are relatively matched when abutted to form limiting during mounting by setting the shapes of the blade and the first mounting position; in a similar way, the second mounting position is used for mounting the fixing frame, and the fixing frame is abutted and limited with the second mounting position so as to keep a fixed mounting position.

Furthermore, the cutter blade fixing device further comprises a cushion block, and the cushion block is arranged between the cutter blade and the fixing frame. The cushion block has a limiting effect on the blade on one hand and a limiting effect on the fixing frame on the other hand.

Furthermore, a third limiting part is arranged on the blade, a fourth limiting part is arranged on the cushion block, the third limiting part is abutted and limited with the fourth limiting part, and the end part, far away from the fourth limiting part, of the cushion block is abutted with the fixing frame. The third limiting part and the fourth limiting part can be matched with each other in shape, the fourth limiting part is inserted into the third limiting part, or the third limiting part is inserted into the fourth limiting part, and the mutual abutting limiting effect is achieved.

Furthermore, a switch which is convenient for rotating the fixing frame is arranged at the top of the fixing frame. The switch is a handle position convenient to hold by hand, and the force can be conveniently applied to the fixing frame by exerting force from the switch, so that the fixing frame rotates relative to the handle.

Further, the blade is rotatably coupled to the handle. The blade is rotationally connected with the handle, so that in the storage state, the blade can be folded and stored in the handle, the storage volume of the cutter is reduced, and the cutter is more portable.

The utility model has the advantages as follows:

1. the first limiting part adopting the cam structure is connected with the second limiting part of the groove structure in a clamping mode in a limiting mode, so that when the blade is locked, the cam is pressed more tightly under the condition that the force is pulled outwards, the blade is assembled more firmly, and the blade is not easy to separate from the handle.

2. The lock catch enables the fixing frame to play a role in secondary protection for locking the blade, and the phenomenon that the fixing frame is unlocked due to mistaken touch in the using process and then the blade is separated from the handle is avoided.

Drawings

Fig. 1 is a diagram of a tool structure with replaceable blades according to the present invention.

Fig. 2 is a structural diagram of the blade in a locked and fixed state according to the present invention.

Fig. 3 is a structural diagram of the blade unlocked state of the present invention.

Fig. 4 is a structural diagram of the blade separation state of the present invention.

Fig. 5 is a structural view of a second gasket of the present invention.

Wherein the graphical symbols are as follows:

1. a handle; 2. a blade; 21. a second limiting part; 22. a third limiting part; 3. a fixed mount; 31. a first limiting part; 4. locking; 41. an elastic clamping groove; 42. an avoidance groove; 5. a first gasket; 51. a first mounting location; 52. a second mounting location; 6. a second gasket; 7. cushion blocks; 71. a fourth limiting part; 8. and (4) switching.

Detailed Description

The drawings are for illustrative purposes only and are not to be construed as limiting the patent; for the purpose of better illustrating the embodiments, certain features 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 positional relationships depicted in the drawings are for illustrative purposes only and are not to be construed as limiting the present patent.

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", "long", "short", 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 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 limiting the present patent, and those skilled in the art will understand the specific meaning of the terms according to their specific circumstances.

In the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly, e.g., as being fixedly connected, detachably connected, or integrated; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

The technical solution of the present invention is further described in detail by the following specific embodiments in combination with the accompanying drawings:

example 1

Fig. 1 to 5 show a cutter embodiment 1 with a replaceable blade, which includes a handle 1, a blade 2, a fixing frame 3, wherein the fixing frame 3 is hinged to the handle 1, the blade 2 is installed on the handle 1, specifically, the blade 2 is fixedly connected to the handle 1, a first limiting portion 31 is arranged on the fixing frame 3, a second limiting portion 21 is arranged on the blade 2, the first limiting portion 31 is in clamping connection with the second limiting portion 21 for limiting, specifically, the first limiting portion 31 is a cam, the second limiting portion 21 is a groove, when the blade 2 is in a locked state, the cam is in clamping connection with the groove for limiting, a lock catch 4 is arranged on the handle 1, and the lock catch 4 is in clamping connection with the fixing frame 3 for locking. When the blade 2 is locked, under the condition that the blade is pulled outwards under stress, the cam is pressed more tightly, so that the blade 2 is assembled more firmly, and the blade 2 is not easy to separate from the handle 1. Under the state that blade 2 is unlocked, hasp 4 and mount 3 unblock, mount 3 can rotate for handle 1, and when mount 3 rotated, the cam breaks away from the recess gradually, after the cam breaks away from the recess completely, releases the lock-out state of mount 3 and blade 2, and blade 2 can take out easily, is convenient for carry out the change of new blade 2.

As a modified solution of this embodiment, an elastic slot 41 for accommodating the latch 4 is disposed at the joint of the fixing frame 3 and the latch 4. Wherein, the side of the fixing frame 3 close to the elastic clamping groove 41 is further provided with an avoiding groove 42 which can facilitate the elastic clamping groove 41 to shift position under the extrusion state. Adopt elasticity draw-in groove 41 and hasp 4 to carry out the joint locking's of joint mode realization mount 3 and handle 1, the unblock is convenient, only needs during the unblock to elasticity draw-in groove 41 application of force, makes elasticity draw-in groove 41 receive the extrusion and to dodge groove 42 direction skew or swing, then rotates mount 3, vacates sufficient space for hasp 4, makes elasticity draw-in groove 41 can break away from hasp 4 to realize the unblock. After the elastic clamping groove 41 is completely separated from the lock catch 4, the elastic clamping groove 41 is driven by restoring force to restore the original clamping groove shape, and the force applied to the fixing frame 3 can be reduced, so that the fixing frame 3 is easy to rotate. Similarly, when needs are locked, along with the reverse rotation of mount 3, elasticity draw-in groove 41 will contact with hasp 4, and hasp 4 makes elasticity draw-in groove 41 receive extrusion to dodge 42 direction skew or swing to elasticity draw-in groove 41 application of force, rotates mount 3 after that, after elasticity draw-in groove 41 is gone into to hasp 4 card completely, can realize locking.

As an improvement of this embodiment, the blade holder further includes a first gasket 5 and a second gasket 6, the first gasket 5 and the second gasket 6 are both installed on the handle 1 and located on two sides of the blade 2, and the fixing frame 3 abuts against the first gasket 5 and/or the second gasket 6. The first gasket 5 is provided with a first mounting position 51 and a second mounting position 52, the blade 2 is inserted into the first mounting position 51 and then is inserted into the first gasket 5, and the fixing frame 3 is abutted against the second mounting position 52. First gasket 5 and second gasket 6 are all installed in handle 1 for fixed blade 2, first installation position 51 and/or second installation position 52 can be for protruding or recess, and 2 tip of blade can set up the recess or the arch of carrying out the joint with first installation position 51, and the same way, 3 tip of mount also can set up with second installation position 52 assorted arch or recess, in order to realize that first gasket 5 is spacing to blade 2 or mount 3, second gasket 6 can be used to fill up the clearance between handle 1 and blade 2 and mount 3, also can add relevant installation position, in order to further carry out spacing fixed to blade 2 or mount 3. When aiming at the blades 2 with different shapes or different thicknesses, different fixing frames 3, first gaskets 5 and second gaskets 6 can be correspondingly replaced, so that the function of assembling different blades 2 can be realized.

As a modified solution of this embodiment, a switch 8 is disposed on the top of the fixing frame 3 for facilitating the rotation of the fixing frame 3. The switch 8 can facilitate locking and unlocking of the fixing frame 3, and the corresponding bulge or groove is arranged at the switch 8, so that the friction force can be increased conveniently, and further the switch 8 can be held conveniently to rotate the fixing frame 3.

Example 2

The embodiment is the cutting tool embodiment 2 of the present invention, which is similar to embodiment 1, and the difference is that the cutting tool further includes a cushion block 7, and the cushion block 7 is installed between the cutting blade 2 and the fixing frame 3. The cushion block 7 is used for further limiting the blade 2, and particularly, may be disposed in the middle of the blade 2 to increase the stability of the blade 2 after installation, and may further improve the deformation resistance of the blade 2. Specifically, the blade 2 is provided with a third limiting portion 22, the cushion block 7 is provided with a fourth limiting portion 71, the third limiting portion 22 abuts against the fourth limiting portion 71 for limiting, and the end portion, far away from the fourth limiting portion 71, of the cushion block 7 abuts against the fixing frame 3. The third position-limiting part 22 can be a protrusion or a groove, and the fourth position-limiting part 71 can be a groove or a protrusion matched with the third position-limiting part 22 in shape, and the two parts are clamped and limited; of course, within the scope of the skilled person, the third position-limiting part 22 and the fourth position-limiting part 71 may have other shapes to achieve the purpose of limiting. The other end of the cushion block 7 is abutted to the fixing frame 3, the setting of the cushion block 7 can increase the reliability of locking between the blade 2 and the fixing frame 3, different cushion blocks 7 can be replaced according to the different shapes of the blade 2, and of course, if the cushion block 7 is removed, the cushion block 7 can also be removed under the condition that the blade 2 can be stably installed.

Example 3

The present embodiment is a cutting tool embodiment 3 with replaceable blades, which is similar to embodiment 1, except that the blade 2 is rotatably connected to the handle 1. The blade 2 and the handle 1 which are connected in a rotating mode can be folded and stored, the size of the cutter in a non-use state is reduced, and the cutter can be conveniently stored and carried.

It is obvious that the above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not intended to limit 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. The utility model provides a can replace cutter of blade, its characterized in that, includes handle (1), blade (2), mount (3) with handle (1) is articulated, blade (2) are installed in handle (1), are equipped with first spacing portion (31) on mount (3), are equipped with spacing portion of second (21) on blade (2), first spacing portion (31) with spacing portion of second (21) joint is spacing, is equipped with hasp (4) on handle (1), hasp (4) can lock with mount (3) joint.

2. The cutting tool with the replaceable blade as set forth in claim 1, wherein the fastening part of the fixing frame (3) and the lock catch (4) is provided with an elastic clamping groove (41) for accommodating the lock catch (4).

3. The cutting tool with replaceable blade as set forth in claim 2, characterized in that the side of the fixing frame (3) near the elastic clamping groove (41) is further provided with an avoiding groove (42) for facilitating the elastic clamping groove (41) to shift in position under the pressed state.

4. The cutting tool with replaceable blade according to any one of claims 1 to 3, wherein the first limiting portion (31) is a cam, and the second limiting portion (21) is a groove, and the cam can be clamped with the groove for limiting.

5. The cutting tool with replaceable blade according to claim 4, further comprising a first gasket (5) and a second gasket (6), wherein the first gasket (5) and the second gasket (6) are both mounted on the handle (1) and located on two sides of the blade (2), and the fixing frame (3) abuts against the first gasket (5) and/or the second gasket (6).

6. The cutting tool with replaceable blades as set forth in claim 5, characterized in that a first mounting position (51) and a second mounting position (52) are respectively disposed on the first gasket (5), the blade (2) is inserted into the first mounting position (51) and then inserted into the first gasket (5), and the fixing frame (3) abuts against the second mounting position (52).

7. The cutting tool with replaceable blade according to claim 1, further comprising a spacer block (7), wherein the spacer block (7) is installed between the cutting blade (2) and the fixing frame (3).

8. The cutting tool with the replaceable blade according to claim 7, wherein a third limiting portion (22) is arranged on the blade (2), a fourth limiting portion (71) is arranged on the spacer block (7), the third limiting portion (22) abuts against the fourth limiting portion (71) for limiting, and the end portion, far away from the fourth limiting portion (71), of the spacer block (7) abuts against the fixing frame (3).

9. The replaceable blade tool according to claim 1, wherein a switch (8) is provided at the top of the holder (3) to facilitate rotation of the holder (3).

10. The replaceable blade knife according to claim 1, characterized in that the blade (2) is rotatably connected to the handle (1).

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