CN213999554U - Cutter with replaceable blade - Google Patents

Abstract

The utility model provides a cutter with replaceable blades, which comprises a shell, a cutter frame component, a first blade arranged on the cutter frame component, a cutter bin used for placing the blade to be used and an elastic cutter changing button fixed on the shell, wherein the cutter frame component comprises a sliding button, a cutter frame and an elastic fixing part for fixing the first blade, the cutter frame component drives the first blade to move and extend out of a cutter outlet of the shell, the elastic fixing part is provided with a triggering part, under the triggering of the elastic cutter changing button, the triggering part moves to enable the elastic fixing part to unlock the first blade, the elastic cutter changing button comprises a pressing part, a connecting part connected with the pressing part and a fixing part connected with one end of the pressing part, which is far away from the cutter outlet, the fixing part is arranged on one side away from the cutter outlet and is fixed on the shell relatively to the pressing part, the elastic cutter changing button is integrally formed, the pressing part is pressed, and the pressing part displaces to further elastically deform the connecting part, and releasing the pressing part, restoring the deformation of the connecting part and returning the pressing part.

Description

Cutter with replaceable blade

Technical Field

The utility model relates to a cutter especially relates to a cutter of removable blade.

Background

For the cutter such as a utility knife which needs a thin blade, the blade is very easy to damage in the using process, and how to safely and quickly replace the blade is a problem to be solved. When the blade needs to be replaced, the blade replacing button is triggered to pull out the blade. The current blade button that trades includes blade lock and spring, and the blade lock includes multiple structures such as spring bolt, lock locking portion and push against portion, and the structure is complicated, and each subassembly of blade button is mostly injection molding, and is with high costs, the easy inefficacy.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects of the prior art, the utility model provides a cutter which is more convenient for adding or replacing blades and has more stable structure, so as to overcome the defects of the prior art.

The utility model provides a technical scheme that prior art problem adopted is:

the utility model provides a cutter of removable blade, includes the casing, sets up slidable knife rest assembly on the casing, set up in first blade on the knife rest assembly and be used for placing the sword storehouse of blade for use, the cutter still includes elasticity tool changing button, elasticity tool changing button is fixed in on the casing, knife rest assembly includes slide button, knife rest and fixes the elastic fixing spare of first blade, elastic fixing spare is fixed in on the knife rest, knife rest assembly drives first blade removes and stretches out a knife edge of casing is in order to expose in outside the casing, elastic fixing spare is last to set up trigger part under the trigger of elasticity tool changing button, trigger part removes so that elastic fixing spare unblock first blade, elasticity tool changing button including expose in the casing is outer press the splenium, connect in the connecting portion of pressing the splenium and connect in the deviating from of connecting portion press the solid of the one end of splenium The fixing part is opposite to the pressing part, the pressing part is arranged on one side, away from the knife outlet, and fixed on the shell, the elastic tool changing button is integrally formed, perpendicular to the direction of the shell presses the pressing part, the pressing part moves in the direction perpendicular to the shell to enable the connecting part to elastically deform and release the pressing part, the connecting part recovers deformation, and the pressing part returns to the original position.

Preferably, the elastic fixing piece further comprises a body, the triggering portion is arranged on the top side of the body, and the triggering portion is of an integrated structure formed by bending and extending the body towards the elastic tool changing button.

Preferably, the elastic fixing piece further comprises an engaging part for fixing the first blade, and the engaging part is an integrated structure formed by bending and extending the body towards the elastic tool changing button.

Preferably, the body, the trigger portion and the engaging portion are an integral metal sheet.

Preferably, the height of the trigger part in a direction parallel to the body is greater than the height of the engaging part in a direction parallel to the body, and the length of the trigger part in a direction perpendicular to the body is greater than the length of the engaging part in a direction perpendicular to the body.

Preferably, elasticity tool changing button with one of them of the two of sword storehouse sets up joint portion, elasticity tool changing button with another one of the two of sword storehouse set up with joint portion complex joint groove presses elasticity tool changing button, press the displacement of splenium, joint portion with joint groove relative slip breaks away from in order to release sword storehouse with elasticity tool changing button's joint is fixed.

Preferably, the joint portion set up in elasticity tool changing button, the joint groove set up in the sword storehouse, one side in joint groove is provided with first slope, the end on first slope be provided with the joint face of first slope approximate vertically, the joint face is located the joint inslot inserts the sword storehouse extremely in the casing, joint portion contacts at first the first slope slides, first slope makes joint portion produces deformation until joint portion crosses first slope gets into in the joint inslot and along withdrawing from the direction card system on first slope in the joint face.

Preferably, joint portion is for certainly connecting portion orientation the integral type structure that the sword storehouse direction extended and formed, joint portion is provided with the second slope, inserts the sword storehouse extremely in the casing, the second slope at first contacts first slope slides.

Preferably, the outer side wall of the knife compartment is provided with a first buckle structure, the inner side wall of the shell is provided with a second buckle structure, the knife compartment is inserted into the shell, and the outer side wall of the knife compartment elastically deforms until the first buckle structure and the second buckle structure are mutually matched in a buckling mode.

Preferably, the position of the elastic tool changing button in the tool spans between one end of the tool bin close to the knife outlet and the position of the elastic fixing piece when the elastic tool changing button unlocks the first blade.

The utility model has the advantages that: the cutter of removable blade is including being fixed in the elasticity tool changing button on the casing, elasticity tool changing button is including exposing outside the casing and pressing the splenium, connect in the connecting portion of pressing the splenium and connecting in the fixed part that deviates from the one end of pressing the splenium of connecting portion, the fixed part is arranged in one side of keeping away from the edge of a knife and is fixed in the casing according to the splenium relatively, elasticity tool changing button integrated into one piece, press the splenium in the direction of perpendicular casing to press down, press splenium displacement and then make connecting portion elastic deformation, the release presses the splenium, connecting portion resume deformation, presses the splenium playback, consequently, for prior art, the utility model discloses utilize the elastic deformation of elasticity tool changing button self to control elastic mounting's motion to unblock first blade, simple structure, stability is good, and is with low costs.

Drawings

The above objects, technical solutions and advantages of the present invention can be achieved by the following drawings.

FIG. 1 is a schematic structural diagram of a cutter in the first embodiment.

Fig. 2 is a schematic view of a portion of the structure of the tool shown in fig. 1.

Fig. 3 is a partial structural schematic view of the tool shown in fig. 2.

Fig. 4 is a partial structural schematic view of the tool shown in fig. 3.

Fig. 5 is a schematic structural diagram of the elastic fixture block and the elastic tool changing button shown in fig. 3.

Fig. 6 is an exploded perspective view of a portion of the structure of the tool shown in fig. 1.

Fig. 7 is a partial structural schematic view of the tool shown in fig. 6.

Fig. 8 is a partial structural schematic view of the tool shown in fig. 7.

Fig. 9 is a schematic structural view of the knife magazine shown in fig. 8.

Fig. 10 is a schematic view of another perspective of the knife magazine of fig. 9.

Fig. 11 is a schematic structural view of the elastic tool changing button shown in fig. 7.

FIG. 12 is a schematic view showing the structure of a cutter according to the second embodiment.

Fig. 13 is a schematic view of another perspective of the tool of fig. 12.

Fig. 14 is a schematic view of another perspective of the tool shown in fig. 13.

Fig. 15 is a partial structural schematic view of the tool shown in fig. 14.

Fig. 16 is a partial structural schematic view of the tool shown in fig. 14.

Fig. 17 is a partial structural schematic view of the tool shown in fig. 14.

Fig. 18 is a schematic view of the structure of the cutter of fig. 17 with the blade extending out of the housing.

Fig. 19 is a schematic view of the structure of the cutter of fig. 16 with the blades extending out of the housing.

Fig. 20 is a schematic view of the tool of fig. 19 from another perspective.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

The first embodiment is as follows: as shown in fig. 1 to 11, the present invention provides a blade-replaceable tool, which includes a housing 10, a slidable tool holder assembly 20 disposed in the housing 10, and a tool magazine 30 for placing a blade 52 to be used, wherein the tool magazine 30 is removably mounted in the housing 10. The tool further comprises an elastic tool changing button 40, and the elastic tool changing button 40 is fixed on the shell 10. The tool holder assembly 20 comprises a sliding button 21, a tool holder 22 and an elastic fixing piece 23 fixed on the tool holder 22, wherein the elastic fixing piece 23 is fixed on the tool holder 22 through a metal elastic sheet 234. The tool contains a plurality of blades including a plurality of inactive blades 52 received in the magazine 30 and a first blade 53 fixedly received in the tool holder 22. A groove 51 is provided on the back of each blade, a clamping portion 231 and a triggering portion 232 are formed on the elastic fixing member 23, the clamping portion 231 is matched with the groove 51 of the first blade 53 to clamp the first blade 53, and the triggering portion 232 is arranged on the back of the first blade 53.

The top of the housing 10 of the cutting tool is provided with a sliding groove (not numbered in the figure), the sliding button 21 is exposed outside the housing 10 through the sliding groove, the housing 10 is provided with a plurality of tool rest positions at intervals along the extending direction of the sliding groove, the sliding button 21 can be correspondingly clamped at different tool rest positions, the sliding button 21 is operated, the sliding button 21 can push the tool rest 22 to move in the sliding groove, and then the tool rest 22 drives the first blade 53 to move together in the housing 10, so that the first blade 53 extends out of the housing 10 or contracts in the housing 10. Specifically, when the sliding button 21 is located at a tool rest position closest to the knife exit, the first blade 53 extends out of the housing 10, at this time, the actuation portion of the elastic tool changing button 40 corresponds to the triggering portion 232 of the elastic fixing member 23 in the direction perpendicular to the sliding direction, the elastic tool changing button 40 is operated in the direction perpendicular to the sliding direction, the triggering portion 232 moves under the triggering of the elastic tool changing button 40, and under the elastic action of the elastic fixing member 23, the triggering portion 232 drives the engaging portion 231 to move and disengage from the groove 51 of the first blade 53, so that the first blade 53 can be taken out of the tool. When the slide button 21 is located at another tool rest position, the actuating position of the elastic tool changing button 40 is staggered with respect to the direction perpendicular to the sliding direction of the trigger 232, and at this time, the first blade 53 cannot be triggered to unlock by operating the elastic tool changing button 40.

The housing 10 includes a first housing 11 and a second housing 12, a first groove (not numbered in the figure) for accommodating the elastic tool changing button 40 and partially exposing the elastic tool changing button 40 outside the first housing 11 is disposed on the first housing 11, the elastic tool changing button 40 includes a pressing portion 41, and the pressing portion 41 of the elastic tool changing button 40 protrudes from the first groove of the first housing 11 so as to be pressed by a user. The housing 10 further defines a magazine hole (not numbered) for inserting and extracting the magazine 30, the magazine 30 is used for placing a plurality of blades 52 to be used, and the blades 52 to be used are fixed in the magazine 30 by the elastic metal sheet 60. The lateral wall of the tool magazine 30 is provided with a first buckle structure 31, the lateral wall of the first shell 11 is provided with a second buckle structure (not shown), the tool magazine 30 is inserted into the shell 10, the lateral wall of the tool magazine 30 elastically deforms until the first buckle structure 31 and the second buckle structure are mutually in buckle fit, and the first buckle structure 31 and the second buckle structure are arranged to prevent the tool magazine 30 from being separated from the shell 10 of the tool under the action of no external force. In this embodiment, the first fastening structure 31 is a wedge-shaped fixture block, the second fastening structure is a clamping groove, that is, a wedge-shaped fixture block 31 is arranged on the outer side wall of the tool magazine 30, a clamping groove for accommodating the wedge-shaped fixture block 31 is correspondingly arranged on the inner side wall of the first housing 11, the wedge-shaped fixture block 31 is matched with the clamping groove, so that the tool magazine 30 is fixed in the housing 10 of the tool, and in order to facilitate pushing the wedge-shaped fixture block 31 into the clamping groove, an inclined surface is arranged at one end of the wedge-shaped fixture block 31 close to the entering side; in other embodiments, the first locking structure 31 may be set as a locking groove, and the second locking structure may be set as a wedge-shaped locking block, which may be specifically set according to actual requirements.

The elastic fixing member 23 includes a body 233, a fastening portion 231 and a triggering portion 232, the body 233 and the fastening portion 231 are vertically disposed, the body 233 and the triggering portion 232 are vertically disposed, the fastening portion 231 and the triggering portion 232 both extend along the thickness direction of the first blade 53, the body 233, the fastening portion 231 and the triggering portion 232 are integrally formed, specifically, the triggering portion 232 is disposed on the top side of the body 233, the triggering portion 232 is an integral structure formed by bending and extending the body 233 toward the elastic tool changing button 40, and the fastening portion 231 is an integral structure formed by bending and extending the body 233 toward the elastic tool changing button 40. The engaging portion 231 is substantially in a semi-cylindrical shape or a U-shaped interface column shape, the triggering portion 232 is in a flat plate shape, the engaging portion 231 is located below the triggering portion 232, the engaging portion 231 is connected with the triggering portion 232, and the triggering portion 232 and the engaging portion 231 are arranged in a close position, so that the triggering portion 232 can be more efficiently moved and jointly transmitted to the engaging portion 231. The height of the trigger 232 in the direction parallel to the body 233 is greater than the height of the engagement portion 231 in the direction parallel to the body 233, and therefore, the engagement portion 231 is placed in the groove 51 of the first blade 53 and the trigger 232 is placed on the ridge of the first blade 53. The length of the trigger 232 in the direction perpendicular to the body 233 is greater than the length of the engagement portion 231 in the direction perpendicular to the body 233, so that the engagement portion 231 is received in the groove 51 of the first blade 53, and the trigger 232 exceeds the ridge of the first blade 53 in the thickness direction of the first blade 53 to facilitate triggering of the elastic tool changing button 40.

As shown in fig. 5, the elastic tool changing button 40 further includes an elongated connecting portion 47 connected to the pressing portion 41 and a fixing portion 44 connected to one end of the elongated connecting portion 47 away from the pressing portion 41, the fixing portion 44 is provided with a fixing hole 42, the fixing member 70 fixes the elastic tool changing button 40 in the housing 10 through the fixing hole 42, a protruding portion 43 is provided on one side of the pressing portion 41 facing away from the pressing portion, the elastic tool changing button 40 is an elastic plastic button, when the pressing portion 41 is pressed into the housing 10 through the first groove, the pressing portion 41 moves along the pressure direction (perpendicular to the sliding direction of the tool holder 22), when the pressing portion 41 is released after being pressed, the pressing portion 41 returns to the first groove of the original position under the action of the elastic force, so that the user can press and trigger the tool next time. When the tool holder 22 together with the elastic fixing member 23 moves to the tool-out position, the triggering portion 232 of the elastic fixing member 23 is opposite to the protrusion 43 of the tool-changing button 40, and specifically, the principle of unlocking the first blade 53 is that when the elastic tool-changing button 40 is triggered under the action of external force, the protrusion 43 of the elastic tool-changing button 40 first contacts with the triggering portion 232 of the elastic fixing member 23, and the elastic tool-changing button 40 drives the triggering portion 232 to move, because the elastic fixing member 23 is an elastic element, the triggering portion 232 drives the engaging portion 231 to move for a certain distance under the action of elasticity, and the engaging portion 231 is separated from the groove 51 of the first blade 53, so that the first blade 53 can be separated from the tool holder assembly 20, and at this time, the first blade 53 can be taken out from the housing 10 of the tool.

In this embodiment, the engaging portion 231 includes a first engaging portion and a second engaging portion (not numbered), a first groove and a second groove are disposed on the ridge of the first blade 53, and the first engaging portion and the second engaging portion are respectively disposed in the first groove and the second groove to fix the first blade 53, so that the fixing strength is increased. The projection of the trigger part 232 on the vertical surface of the body 233 is located between the first clamping part and the second clamping part, so that the stability of the trigger part 232 is improved, the trigger part 232 moves under the trigger of the elastic tool changing button 40, the first clamping part and the second clamping part move for a preset distance under the elastic action of the elastic fixing piece 23, and the first clamping part and the second clamping part are separated from contact with the groove 51 of the first blade 53, so that the first blade 53 is separated from the tool rest assembly 20.

One of the two of elasticity tool changing button 40 and sword storehouse 30 sets up joint portion 45, and the other one of the two of elasticity tool changing button 40 and sword storehouse 30 sets up with joint portion 45 complex joint groove 32, presses elasticity tool changing button 40, presses the displacement of splenium 41, and joint portion 45 breaks away from with joint groove 32 relative slip in order to release sword storehouse 30 and elasticity tool changing button 40's joint fixed. In this embodiment, the clamping portion 45 is disposed on the elastic tool changing button 40, the clamping portion 45 is an integral structure formed by extending from the long connecting portion 47 toward the tool magazine 30, the corresponding position of the tool magazine 30 is provided with the clamping groove 32, one side of the clamping groove 32 is provided with the first slope 33, the end of the first slope 33 is provided with the clamping surface 34 approximately perpendicular to the first slope 33, the clamping surface 34 is located in the clamping groove 32, the clamping portion 45 is provided with the second slope 46, the tool magazine 30 is inserted into the casing 10, the second slope 46 firstly contacts the first slope 33 to slide, the first slope 33 deforms the clamping portion 45, and the clamping portion 45 is clamped on the clamping surface 34 until the clamping portion 45 crosses the first slope 33, enters the clamping groove 32 and is clamped along the direction of withdrawing the first slope 33. After the tool magazine 30 is completely inserted into the housing 10 of the tool, the clamping portion 45 of the elastic tool changing button 40 is clamped and fixed with the clamping groove 32 of the tool magazine 30, and the tool magazine 30 cannot be taken out under the action of external force, so that the tool magazine 30 is prevented from being separated from the housing 10 of the tool when the tool is used. In addition, after the tool magazine 30 is completely inserted into the housing 10 of the tool, the wedge-shaped latch 31 disposed on the outer side wall of the tool magazine 30 is engaged with the slot disposed on the inner side wall of the first housing 11 of the tool. When the tool magazine 30 needs to be taken out, the elastic tool changing button 40 is pressed, the clamping part 45 of the elastic tool changing button 40 is separated from the clamping groove 32 of the tool magazine 30, and at the moment, due to the matching between the wedge-shaped clamping block 31 arranged on the outer side wall of the tool magazine 30 and the clamping groove arranged on the inner side wall of the first shell 11 of the tool, the tool magazine 30 cannot be separated from the shell 10 of the tool under the action of no external force; the tool magazine 30 can be removed from the housing 10 of the tool only under certain external forces. In this embodiment, the first slope 33 is set to be 30 °, the second slope 46 is set to be 35 °, and in other embodiments, the inclination angles of the first slope 33 and the second slope 46 may be set according to actual requirements. In this embodiment, joint portion 45 also can set up in elasticity tool changing button 40, and joint groove 32 sets up in sword storehouse 30, and in other embodiments, joint portion 45 also can set up in sword storehouse 30, and joint groove 32 sets up in elasticity tool changing button 40, specifically can set up according to actual demand.

In the present embodiment, the position of the elastic tool changing button 40 in the tool spans between one end of the tool magazine 30 close to the exit and the position of the elastic fixing member 23 when the elastic tool changing button 40 unlocks the first blade 53 (when the sliding button 21 is located at one tool rest position closest to the exit), the elastic tool changing button 40 is arranged in a long shape, and the operation of two unlocking functions can be simultaneously realized by the same operation action, that is, by pressing the pressing part 41. Specifically, when the tool holder 22 with the elastic fixing member 23 moves to the tool changing position, the pressing portion 41 is pressed to simultaneously unlock the first blade 53 (the pressing portion 41 triggers the triggering portion 232 to drive the engaging portion 231 to disengage from the groove 51 of the first blade 53) and unlock the tool magazine 30 (the engaging portion 45 disengages from the engaging groove 32 of the tool magazine 30), and at this time, the wedge-shaped block 31 of the tool magazine 30 is engaged with the housing 10 of the tool, and the tool magazine 30 can be operated to disengage from the housing 10 and unloaded. When the tool post 22 with the elastic fixing member 23 moves to other tool post positions, the pressing portion 41 is pressed to unlock the tool magazine 30 (the engaging portion 45 is disengaged from the engaging groove 32 of the tool magazine 30). The user can select different positions to unlock corresponding structures according to specific unlocking requirements. The unlocking requirements of different unlocking scenes are met by the same pressing mode, the unlocking structure in the cutter is simplified to a great extent, the operation difficulty is reduced, and the manufacturing cost of the cutter is reduced.

Example two: as shown in fig. 12 to 20, the present invention provides a replaceable blade tool, which comprises a housing 10, a slidable tool holder assembly 20 disposed in the housing 10, and a tool magazine 30 for placing a blade 52 to be used, wherein the tool magazine 30 is installed in the housing 10 in a pluggable manner. The cutter further comprises an elastic tool changing button 40, the elastic tool changing button 40 is fixed on the shell 10 through a return spring 60, specifically, one end of the return spring 60 is fixed on a fixing column on the shell 10, the other end of the return spring 60 is fixed on the fixing column of the elastic tool changing button 40, and the elastic tool changing button 40 automatically resets under the action of self elasticity and the return spring 60 after being triggered. The blade carrier assembly 20 includes a slide button 21, a blade carrier 22, and an elastic fixing member 23 fixed to the blade carrier 22. The tool contains a plurality of blades including a plurality of inactive blades 52 received in the magazine 30 and a first blade 53 fixedly received in the tool holder 22. A groove 51 is provided on the back of each blade, a clamping portion 231 and a triggering portion 232 are formed on the elastic fixing member 23, the clamping portion 231 is matched with the groove 51 of the first blade 53 to clamp the first blade 53, and the triggering portion 232 is arranged on the back of the first blade 53.

The top of the housing 10 of the cutting tool is provided with a sliding groove (not numbered in the figure), the sliding button 21 is exposed outside the housing 10 through the sliding groove, the housing 10 is provided with a plurality of tool rest positions at intervals along the extending direction of the sliding groove, the sliding button 21 can be correspondingly clamped at different tool rest positions, the sliding button 21 is operated, the sliding button 21 can push the tool rest 22 to move in the sliding groove, and then the tool rest 22 drives the first blade 53 to move together in the housing 10, so that the first blade 53 extends out of the housing 10 or contracts in the housing 10. Specifically, when the sliding button 21 is located at a tool rest position closest to the knife exit, the first blade 53 extends out of the housing 10, at this time, the actuation portion of the elastic tool changing button 40 corresponds to the triggering portion 232 of the elastic fixing member 23 in the direction perpendicular to the sliding direction, the elastic tool changing button 40 is operated in the direction perpendicular to the sliding direction, the triggering portion 232 moves under the triggering of the elastic tool changing button 40, and under the elastic action of the elastic fixing member 23, the triggering portion 232 drives the engaging portion 231 to move and disengage from the groove 51 of the first blade 53, so that the first blade 53 can be taken out of the tool. When the slide button 21 is located at another tool rest position, the actuating position of the elastic tool changing button 40 is staggered with respect to the direction perpendicular to the sliding direction of the trigger 232, and at this time, the first blade 53 cannot be triggered to unlock by operating the elastic tool changing button 40.

The housing 10 includes a first housing 11 and a second housing 12, a first groove (not numbered in the figure) for accommodating the elastic tool changing button 40 and partially exposing the elastic tool changing button 40 outside the first housing 11 is disposed on the first housing 11, the elastic tool changing button 40 includes a pressing portion 41, and the pressing portion 41 of the elastic tool changing button 40 protrudes from the first groove of the first housing 11 so as to be pressed by a user. The housing 10 further defines a magazine hole (not numbered) for inserting and extracting the magazine 30, and the magazine 30 is used for placing a plurality of blades 52 to be used.

As shown in fig. 20, the elastic fixing member 23 includes a body 233, a fastening portion 231 and a triggering portion 232, the body 233 and the fastening portion 231 are disposed perpendicularly, the body 233 and the triggering portion 232 are disposed perpendicularly, the fastening portion 231 and the triggering portion 232 both extend along the thickness direction of the first blade 53, the body 233, the fastening portion 231 and the triggering portion 232 are an integrated metal sheet, specifically, the triggering portion 232 is disposed on the top side of the body 233, the triggering portion 232 is flat, the triggering portion 232 is an integrated structure formed by bending and extending from the body 233 toward the elastic tool changing button 40, the fastening portion 231 is also flat, and the fastening portion 231 is an integrated structure formed by bending and extending from the body 233 toward the elastic tool changing button 40. The height of the trigger 232 in the direction parallel to the body 233 is greater than the height of the engagement portion 231 in the direction parallel to the body 233, and therefore, the engagement portion 231 is placed in the groove 51 of the first blade 53 and the trigger 232 is placed on the ridge of the first blade 53. In this embodiment, the trigger 232 is 1.5 mm higher than the engaging portion 231. The trigger 232 is disposed adjacent to the engaging portion 231, so that the movement of the trigger 232 can be more efficiently transmitted to the engaging portion 231. The length of the trigger 232 in the direction perpendicular to the body 233 is greater than the length of the engagement portion 231 in the direction perpendicular to the body 233, so that the engagement portion 231 is received in the groove 51 of the first blade 53, and the trigger 232 exceeds the ridge of the first blade 53 in the thickness direction of the first blade 53 to facilitate triggering of the elastic tool changing button 40. In this embodiment, the elastic fixing member 23 is a leaf spring.

As shown in fig. 17 and 18, the elastic tool changing button 40 further includes an elongated connecting portion 47 connected to the pressing portion 41 and a fixing portion 44 connected to one end of the elongated connecting portion 47 away from the pressing portion 41, the fixing portion 44 is provided with a fixing hole 42, a fixing member (not shown) penetrates through the fixing hole 42 to fix the elastic tool changing button 40 in the housing 10, the elastic tool changing button 40 is an elastic plastic button, when the pressing portion 41 is pressed into the housing 10 through the first groove, the pressing portion 41 moves along a pressing direction (perpendicular to a sliding direction of the tool holder 22), and when the pressing portion 41 is released after being pressed, the pressing portion 41 returns to the first groove of the original position under the action of the elastic force of the pressing portion and the reset spring 60, so that the user can press and trigger the tool next time. When the tool holder 22 with the elastic fixing member 23 moves to the tool-out position, the triggering portion 232 of the elastic fixing member 23 is opposite to the pressing portion 41 of the elastic tool-changing button 40, and specifically, the first blade 53 is unlocked based on the principle that when the elastic tool-changing button 40 is triggered by an external force, the pressing portion 41 of the elastic tool-changing button 40 first contacts with the triggering portion 232 of the elastic fixing member 23, the pressing portion 41 of the elastic tool-changing button 40 drives the triggering portion 232 to move, and due to the fact that the elastic fixing member 23 is an elastic element, the triggering portion 232 drives the engaging portion 231 to move for a certain distance under the elastic action, and the engaging portion 231 is separated from the groove 51 of the first blade 53, so that the first blade 53 can be separated from the tool holder assembly 20, and at this time, the first blade 53 can be taken out from the housing 10 of the tool.

When the utility model is used, the first blade 53 is extended or contracted into the shell 10 from the shell 10 by pushing the sliding button 21 to move at the original gear, the first gear, the second gear and the tool changing gear (the sliding button 21 is located at a tool rest position closest to the knife outlet), when the first blade 53 is worn and needs to be changed, as long as the sliding button 21 is pushed to the tool changing gear, the elastic tool changing button 40 is pressed, the pressing part 41 moves under the action of external force, the triggering part 232 is extruded, the triggering part 232 moves, the movement of the triggering part 232 drives the clamping part 231 to move, the clamping part 231 is separated from the groove 51 of the first blade 53, at the moment, the first blade 53 can be taken out from the knife outlet in front of the shell 10, the standby blade 52 can be popped out for use under the action of the elastic piece arranged in the knife bin 30 or the elastic arm arranged in the knife bin 30, when all the inactive blades 52 in the magazine 30 are used, the magazine 30 can be removed, and the magazine 30 can be filled with the inactive blades 52 and then placed in the housing 10 for subsequent use.

In the utility model, the cutter with replaceable blade comprises an elastic tool changing button 40 fixed on the shell 10, the elastic tool changing button 40 comprises a pressing part 41 exposed outside the shell 10, a long connecting part 47 connected with the pressing part 41 and a fixing part 44 connected with one end of the long connecting part 47 departing from the pressing part 41, the fixing part 44 is arranged at one side far away from the knife outlet and fixed on the shell 10 relative to the pressing part 41, the elastic tool changing button 40 is integrally formed, the elastic fixing part 23 is fixed on the tool holder 22, a clamping part 231 matched with the groove 51 of the ridge of the first blade 53 to clamp the first blade 53 is formed on the elastic fixing part 23, the tool holder 22 can drive the first blade 53 to move in the shell 10, a triggering part 232 is also formed on the elastic fixing part 23, the pressing part 41 is pressed in the direction perpendicular to the shell 10, the pressing part 41 moves into the long connecting part 47 in the direction perpendicular to the shell 10 and elastically deforms, the pressing portion 41 drives the triggering portion 232 to move, under the elastic action of the elastic fixing member 23, the triggering portion 232 drives the engaging portion 231 to move, the engaging portion 231 is separated from the contact with the groove 51 of the first blade 53, after the first blade 53 is taken out, the pressing portion 41 is released, the long connecting portion 47 is deformed again, and the pressing portion 41 is returned to the original position. Therefore, for prior art, the utility model discloses utilize the elastic deformation of elasticity tool changing button 40 self to control the motion of elastic fixing piece 23 to unblock first blade 53, simple structure, stability is good, and is with low costs.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above 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.

The above-mentioned embodiments only express the embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims (10)

1. The utility model provides a cutter of removable blade, includes the casing, sets up slidable knife rest assembly on the casing, set up in knife compartment for use blade and being used for placing the first blade on the knife rest assembly, the cutter still includes elasticity tool changing button, elasticity tool changing button is fixed in on the casing, knife rest assembly includes slide button, knife rest and fixes the elastic fixing spare of first blade, elastic fixing spare is fixed in on the knife rest, knife rest assembly drives first blade removes and stretches out a knife edge of a play of casing is in order to expose outside the casing, elastic fixing spare is last to set up trigger part under the trigger of elasticity tool changing button, trigger part removes so that elastic fixing spare unblock first blade, its characterized in that: the elastic tool changing button comprises a pressing portion exposed outside the shell, a connecting portion connected to the pressing portion and a fixing portion connected to the connecting portion and deviating from the pressing portion, the fixing portion is opposite to the pressing portion, the pressing portion is arranged on one side far away from the knife outlet and fixed on the shell, the elastic tool changing button is integrally formed, perpendicular to the direction of the shell presses the pressing portion, the pressing portion is perpendicular to the direction of the shell and moves in and enables the connecting portion to elastically deform, the pressing portion is released, the connecting portion recovers to deform, and the pressing portion returns to the original position.

2. The replaceable blade tool of claim 1 wherein the resilient mount further comprises a body, the top side of the body having the trigger portion, the trigger portion being an integral structure formed by bending and extending from the body toward the resilient tool changing button.

3. The replaceable blade tool of claim 2 wherein the resilient mount further comprises an engaging portion for securing the first blade, the engaging portion being formed by bending and extending from the body toward the resilient tool changing button.

4. The replaceable insert cutting tool of claim 3 wherein the body, the trigger portion and the engagement portion are a unitary piece of sheet metal.

5. The replaceable blade tool as set forth in claim 3, wherein the height of the trigger portion in a direction parallel to the body is greater than the height of the engaging portion in a direction parallel to the body, and the length of the trigger portion in a direction perpendicular to the body is greater than the length of the engaging portion in a direction perpendicular to the body.

6. The blade-replaceable cutter according to claim 1, wherein one of the elastic cutter changing button and the cutter magazine is provided with a clamping portion, the other of the elastic cutter changing button and the cutter magazine is provided with a clamping groove matched with the clamping portion, the elastic cutter changing button is pressed, the pressing portion is displaced, and the clamping portion and the clamping groove slide relatively to be separated to release clamping fixation of the cutter magazine and the elastic cutter changing button.

7. The cutter with replaceable blades as claimed in claim 6, wherein the clamping portion is disposed on the elastic tool changing button, the clamping groove is disposed on the tool magazine, a first slope is disposed on one side of the clamping groove, a clamping surface substantially perpendicular to the first slope is disposed at the end of the first slope, the clamping surface is located in the clamping groove and inserted into the tool magazine to the housing, the clamping portion first contacts the first slope to slide, and the first slope deforms the clamping portion until the clamping portion crosses the first slope, enters the clamping groove, and is clamped on the clamping surface along a direction of exiting the first slope.

8. The replaceable blade tool of claim 7 wherein the engagement portion is a unitary structure extending from the connecting portion toward the magazine, the engagement portion having a second ramp for insertion into the magazine to slide in contact with the first ramp.

9. The replaceable blade tool of claim 1 wherein the outer sidewall of the magazine is provided with a first snap structure and the inner sidewall of the housing is provided with a second snap structure, and the magazine is inserted into the housing such that the outer sidewall of the magazine is elastically deformed until the first snap structure and the second snap structure are engaged with each other.

10. The replaceable blade tool of claim 1, wherein the resilient tool changing button is located in the tool at a position spanning between an end of the magazine near the exit opening and a position of the resilient mount when the resilient tool changing button unlocks the first blade.

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