Anti-rotation assembly for cutter and cutter thereof

Abstract

The anti-rotation assembly comprises at least one stop groove, and the stop groove is formed in the surface of a tool apron; and the anti-rotation piece is rotatably connected to the driving piece so as to move together with the driving piece, one end of the anti-rotation piece is movably connected to the push button, the other end of the anti-rotation piece is suitable for being separably jointed with the stop groove so that the tool apron can be kept at a selectable position, and the anti-rotation piece can be jointed with or separated from the stop groove by pressing the push button. The anti-rotation piece is installed on the driving piece and can be connected with the driving piece and the tool apron in an elastic locking mode under the action of the reset piece, so that the risk that the tool apron rotates relative to the driving piece during cutting is avoided, and the use safety of the tool is improved.

Description

Technical Field

[0001] The invention relates to the technical field of cutters, in particular to an anti-rotation component for cutters and the cutter. Background Art

[0002] Knives are mainly divided into cutting knives for side cutting and scrapers for scraping. A cutting knife is a tool for arts and crafts, mostly of a pull-out structure, consisting of a plastic handle and a blade. Usually the cutting edge of the blade is parallel to the axis of the handle or the shell, and is mainly used for cutting, such as cutting paper, cardboard, etc. A scraper usually has a blade that is perpendicular or orthogonal to the axis of the handle, and is used for scraping, such as scraping paint, glue marks, etc. from a flat surface. A cutting knife and a scraper are two separate hand tools, and they are often not interchangeable. It is usually necessary to purchase, store and carry these two separate tools, which brings inconvenience to the user.

[0003] The deformable tool drives the tool holder to rotate through a driving part, so that it can switch between multiple positions such as a cutting knife, a scraper, and even an oblique scraper. A deformable tool can meet multiple work needs such as cutting and scraping, and the multi-angle positioning of the tool can be quickly achieved with only one hand operation, which is conducive to improving work efficiency. Therefore, the demand and development of deformable tools are increasing.

[0004] The drive member of the existing deformable tool is pivotally connected to the knife seat. The knife seat is driven by the drive member to translate and / or rotate relative to the knife housing, and the knife seat and the drive member rotate relative to each other. However, when the cutting resistance is large, there is a risk of the knife seat rotating relative to the drive member when cutting with force, and accidental rotation of the knife seat will cause a safety hazard. Summary of the invention

[0005] One object of the present invention is to provide an anti-rotation assembly for a tool, wherein the anti-rotation member is installed on a driving member and can elastically lock the driving member and the tool holder under the action of a reset member to avoid the risk of the tool holder rotating relative to the driving member during cutting, thereby improving the safety of the tool use.

[0006] Another object of the present invention is to provide an anti-rotation assembly for a tool, wherein the anti-rotation member is connected to a push button, and the anti-rotation member can be separated from the tool holder by pressing the push button, so that the tool holder can rotate relative to the driving member.

[0007] Another object of the present invention is to provide an anti-rotation assembly for a tool, wherein the reset member can provide torque to the anti-rotation member, so that the anti-rotation member rotates to counteract the tool holder, thereby preventing the tool holder from rotating relative to the drive member.

[0008] Another object of the present invention is to provide a tool in which a drive member and a tool holder are elastically locked and connected via an anti-rotation assembly, thereby preventing the tool holder from accidentally rotating relative to the drive member, thereby improving the safety of the tool.

[0009] In order to achieve at least one of the above purposes, the technical solution adopted by the present invention is: an anti-rotation component for a tool, comprising: at least one stop groove, which is opened on the surface of a tool holder; an anti-rotation member, rotatably connected to a driving member so as to move together with the driving member, one end of the anti-rotation member is movably connected to a push button, and the other end of the anti-rotation member is suitable for detachably engaging with the stop groove to keep the tool holder in an optional position, and pressing the push button can engage or disengage the anti-rotation member with the stop groove.

[0010] Preferably, the anti-rotation assembly further comprises a reset member, which elastically connects the anti-rotation member and the driving member to provide torque to the anti-rotation member so that the anti-rotation member abuts against the knife seat and / or the push button.

[0011] As a preference, the anti-rotation member includes a main body portion, a rotating shaft portion and a stop portion, the rotating shaft portion is protrudingly located on the side of the main body portion so as to be rotatably connected to the driving member, the stop portion protrudes from one end of the main body portion toward the knife seat so as to be accommodated in the stop groove, and the other end of the main body portion is located below the push button so as to be suitable for resisting against the push button under the action of the reset member.

[0012] As a preference, the main body portion includes an integrally formed stop section and a linkage section, the rotating shaft portion is located at the connection between the stop section and the linkage section, the stop section extends from the rotating shaft portion toward the knife seat direction, the stop section is located at the end of the stop section, and the linkage section extends from the rotating shaft portion toward the push button direction, and the upper side surface of the stop section and the upper side surface of the linkage section are set at an angle, so that during the rotation of the anti-rotation part, the upper side surface of the stop section and the upper side surface of the linkage section are lower than the upper side surface of the driving part.

[0013] As a preferred embodiment, the end of the linkage section is provided with a curved surface, suitable for relatively sliding against the push button.

[0014] As a preference, the reset member is a compression spring, which is arranged below the end of the linkage section, so as to provide torque to the anti-rotation member, so that the anti-rotation member abuts against the knife seat and / or the push button.

[0015] As a preference, the stop portion is provided with a first stop surface and a second stop surface on the side facing the tool holder, the first stop surface and the second stop surface are arranged at an angle, the first stop surface is suitable for forming a surface contact with the bottom surface of the stop groove, and the second stop surface is suitable for forming a surface contact with the upper surface of the tool holder.

[0016] As a preference, the extension directions of the main body and the stop portion both pass through the rotation center of the knife holder relative to the driving member, and the extension direction of each stop groove passes through the rotation center of the knife holder relative to the driving member, so that the stop portion of the anti-rotation member can engage with each stop groove.

[0017] To achieve at least one of the above purposes, the technical solution adopted by the present invention is: a tool, comprising: a knife housing, the knife housing is provided with a accommodating cavity and a port, the port is opened at the front end of the knife housing; a knife seat, the knife seat carries a blade, the knife seat is rotatably installed in the accommodating cavity, and a plurality of stop grooves are opened on the circumferential side of the upper surface of the knife seat; a driving member, the driving member is drivably connected to the knife seat so that the knife seat can be rotated out of or into the accommodating cavity; a push button, the push button can be elastically pressed and locked to the knife housing by a spring, the push button is connected to the driving member, and the knife seat can be moved or locked to an optional position by the driving member; and the above-mentioned anti-rotation component for the knife, the anti-rotation component is rotatably installed on the driving member, one end of the anti-rotation component is movably connected to the push button, and the other end of the anti-rotation component is suitable for detachably engaging with the stop groove, and pressing the push button can engage or disengage the anti-rotation component with the stop groove.

[0018] As a preference, the driving member is provided with a receiving groove to accommodate the anti-rotation member, and the driving member is also provided with an escape channel to connect the receiving groove and the outside, and the stop portion of the anti-rotation member is suitable for passing through the escape channel to abut against the knife seat. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural diagram of the stopper portion of the anti-rotation member abutting against the upper surface of the knife seat according to some embodiments of the present application;

[0020] Figure 2 is a cross-sectional view of a stop portion of an anti-rotation member abutting against an upper surface of a knife seat according to some embodiments of the present application;

[0021] Figure 3 is a structural diagram of the engagement between the stop portion of the anti-rotation member and the stop groove of the knife seat according to some embodiments of the present application;

[0022] Figure 4 is a structural diagram of the engagement between the stop portion of the anti-rotation member and the stop groove of the knife seat according to some embodiments of the present application;

[0023] Figure 5 is a cross-sectional view of the engagement between the stop portion of the anti-rotation member and the stop groove of the tool holder according to some embodiments of the present application;

[0024] Figure 6is a cross-sectional view of a stop portion of an anti-rotation member separated from a knife seat according to some embodiments of the present application;

[0025] Figure 7 is a schematic structural diagram of an anti-rotation component according to some embodiments of the present application;

[0026] Figure 8 A schematic diagram of the structure of a driving member according to some embodiments of the present application;

[0027] Fig. 9 A schematic diagram of the structure of a knife holder according to some embodiments of the present application;

[0028] Fig.10 A schematic diagram of the structure of a knife holder according to some embodiments of the present application;

[0029] Fig.11 It is a structural diagram of the engagement between the stop portion of the anti-rotation component and the stop groove of the tool holder according to some embodiments of the present application.

[0030] In the figure: 10, anti-rotation assembly; 20, anti-rotation member; 21, shaft portion; 22, main body portion; 221, linkage section; 222, stop section; 223, stop portion; 2231, first stop surface; 2232, second stop surface; 30, reset member; 40, knife seat; 41, stop groove; 42, blade; 50, driving member; 51, accommodating groove; 52, avoidance channel; 60, push button; 70, knife housing. DETAILED DESCRIPTION

[0031] The present invention is further described below in conjunction with specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form a new embodiment.

[0032] In the description of the present invention, it should be noted that directional words, such as the terms "center", "lateral", "longitudinal", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating directions and positional relationships are based on the directions or positional relationships shown in the accompanying drawings, which are only for the convenience of narrating the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and cannot be understood as limiting the specific scope of protection of the present invention.

[0033] It should be noted that the terms "first", "second", etc. in the description and claims of the present application are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence.

[0034] It should be noted that the terms "front", "back", etc. are used to indicate the orientation to facilitate the description of the present invention and simplify the description, rather than to indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. It can also be expressed as "above", "below", or "one side", "the other side", etc., and cannot be understood as limiting the specific scope of protection of the present invention.

[0035] An anti-rotation assembly 10 for a tool, such as Figure 1-Figure 6 As shown, it includes: at least one stop groove 41, which is opened on the surface of the knife seat 40; and an anti-rotation member 20, which is rotatably connected to the driving member 50 and can move together with the driving member 50. One end of the anti-rotation member 20 is movably connected to the push button 60, and the other end of the anti-rotation member 20 is suitable for detachably engaging with the stop groove 41, so that the knife seat 40 is kept in an optional position. Pressing the push button 60 can engage or separate the anti-rotation member 20 from the stop groove 41.

[0036] Specifically, when the push button 60 is pressed, one end of the anti-rotation member 20 connected to the push button 60 rotates downward under the drive of the push button 60. It is understandable that the other end of the anti-rotation member 20, that is, the end that cooperates with the knife holder 40, rotates upward accordingly, so that the anti-rotation member 20 is separated from the knife holder 40, and then the knife holder 40 can rotate relative to the driving member 50, and the knife holder 40 can be rotated out of or into the knife housing 70 under the drive of the driving member 50. When the push button 60 is released, the driving member 50 and the knife holder 40 are locked in an optional position, and the anti-rotation member 20 is engaged with the stop groove 41, so that the knife holder 40 can be prevented from rotating relative to the driving member 50, thereby reducing the risk of the knife holder 40 rotating relative to the driving member 50 during cutting, and improving the safety of the tool.

[0037] In an alternative embodiment, if Fig.11 As shown, a compression spring is installed under the push button 60. When the push button 60 is released, the push button 60 can move upward under the action of the compression spring, and one end of the anti-rotation component 20 is rotatably connected to the push button 60, so that it can rotate along with the up and down movement of the push button 60, thereby further enabling the anti-rotation component 20 to engage or separate with the knife seat 40.

[0038] In some embodiments, Figure 1-Figure 6 As shown, the anti-rotation assembly 10 further includes a reset member 30, which is elastically connected to the anti-rotation member 20 and the driving member 50, so as to provide torque to the anti-rotation member 20, so that the anti-rotation member 20 abuts against the knife seat 40 and / or the push button 60. Specifically, the reset member 30 is disposed at one end of the anti-rotation member 20 close to the push button 60, abutting between the anti-rotation member 20 and the driving member 50, so as to provide torque to the anti-rotation member 20, and then the end of the anti-rotation member 20 close to the push button 60 can be detachably abutted against the lower surface of the push button 60 under the action of the reset member 30.

[0039] It is understandable that when the push button 60 is pressed, the lower surface of the push button 60 abuts against the anti-rotation member 20 to overcome the force of the reset member 30 and drive the anti-rotation member 20 to rotate, so that the other end of the anti-rotation member 20 is separated from the knife seat 40. At this time, the driving member 50 is pushed by the push button 60 to translate and / or rotate relative to the knife housing 70, thereby driving the knife seat 40 to translate and / or rotate relative to the knife housing 70, and the knife seat 40 is rotated relative to the driving member 50. When the push button 60 is released, the push button 60 moves upward, and at the same time, under the action of the reset member 30, the end of the anti-rotation member 20 close to the push button 60 is rotated upward, so that the other end of the anti-rotation member 20 is rotated downward to abut against the knife seat 40.

[0040] It is worth mentioning that when the push button 60 is released, the push button 60 moves upward and resets under the push of the compression spring below it, and at the same time, the end of the anti-rotation member 20 close to the push button 60 is able to rotate upward under the action of the reset member 30. Figure 2 and Figure 5 As shown, the angle of rotation required for the anti-rotation member 20 and the upper surface of the knife seat 40 to abut against each other is smaller than the angle of rotation required for the anti-rotation member 20 to engage with the stop groove 41 on the knife seat 40. In other words, if one end of the anti-rotation member 20 is able to abut against the lower surface of the reset push button 60 when the anti-rotation member 20 is engaged with the stop groove 41 on the knife seat 40, then when the anti-rotation member 20 abuts against the upper surface of the knife seat 40, due to the obstruction of the knife seat 40, the anti-rotation member 20 cannot continue to rotate to abut against the lower surface of the reset push button 60. It can be understood that in the above case, if one end of the anti-rotation member 20 is connected to the push button 60 in contact and can only rotate by the push button 60, when the anti-rotation member 20 abuts against the upper surface of the knife seat 40, the push button 60 will not be able to be completely reset. Therefore, a reset member 30 is provided on the side of the anti-rotation member 20 close to the push button 60. When the push button 60 moves downward, it can abut against the anti-rotation member 20, so that the anti-rotation member 20 rotates to separate from the knife seat 40; when the push button 60 moves upward, even if the push button 60 is separated from the anti-rotation member 20, the anti-rotation member 20 can also rotate under the action of the reset member 30 to abut against the upper surface of the knife seat 40 or combine with the stop groove 41, such as Figure 2 shown.

[0041] In some embodiments, Figure 7 As shown, the anti-rotation member 20 includes a main body portion 22, a rotation shaft portion 21 and a stop portion 223. The rotation shaft portion 21 is protrudingly located on the side of the main body portion 22 so as to be rotatably connected to the driving member 50. The stop portion 223 protrudes from one end of the main body portion 22 toward the knife seat 40 so as to be accommodated in the stop groove 41. The other end of the main body portion 22 is located below the push button 60 and is suitable for abutting against the push button 60 under the action of the reset member 30.

[0042] That is to say, the main body 22 is rotatably connected to the driving member 50 through the rotating shaft portion 21, and can move together with the driving member 50. The main body 22 is suitable for rotating relative to the driving member 50 under the dual action of the push button 60 and the reset member 30, so that the stop portion 223 is separated from the knife seat 40, and then the knife seat 40 can rotate relative to the driving member 50, or the stop portion 223 is abutted against the upper surface of the knife seat 40, or the stop portion 223 is engaged with the stop groove 41 on the knife seat 40, so that the knife seat 40 can be fixed to the driving member 50, thereby avoiding accidental rotation of the knife seat 40 relative to the driving member 50 and causing safety hazards.

[0043] In an alternative embodiment, if Figure 1 , Figure 3 and Figure 4 As shown, the extension direction of the main body 22 and the stopper 223 passes through the rotation center of the blade holder 40 relative to the driving member 50, and the extension direction of each stopper groove 41 also passes through the rotation center of the blade holder 40 relative to the driving member 50, so that the stopper 223 of the anti-rotation member 20 can be engaged with each stopper groove 41. In other words, in the process of the blade holder 40 rotating relative to the driving member 50 and the process of the main body 22 rotating relative to the driving member 50, the extension direction of the main body 22 and the stopper 223 always passes through the rotation center of the blade holder 40 relative to the driving member 50, and the extension direction of each stopper groove 41 also passes through the rotation center of the blade holder 40 relative to the driving member 50, so that the stopper 223 located at one end of the main body 22 can be engaged with each stopper groove 41 respectively, and the positional relationship between the blade holder 40, the driving member 50 and the anti-rotation member 20 is relatively simple, which can be reliably matched and easy to assemble.

[0044] In some embodiments, Figure 7 As shown, the main body 22 includes an integrally formed stop section 222 and a linkage section 221, and the shaft portion 21 is located at the connection between the stop section 222 and the linkage section 221. The stop section 222 extends from the shaft portion 21 toward the knife seat 40, and the stop section 223 is located at the end of the stop section 222, so as to cooperate with the stop groove 41 on the knife seat 40. The linkage section 221 extends from the shaft portion 21 toward the push button 60, and the upper side surface of the stop section 222 and the upper side surface of the linkage section 221 are arranged at an angle, so that during the rotation of the anti-rotation member 20, the upper side surface of the stop section 222 and the upper side surface of the linkage section 221 are lower than the upper side surface of the driving member 50, so as to reduce the activity space occupied by the main body 22 when rotating, so as to make the structure of the anti-rotation assembly 10 more compact.

[0045] Specifically, if Figure 1-Figure 7As shown, the upper side surface of the stop section 222 gradually tilts downward from the side close to the rotating shaft portion 21 to the side away from the rotating shaft portion 21, and the upper side surface of the linkage section 221 gradually tilts downward from the side close to the rotating shaft portion 21 to the side away from the rotating shaft portion 21. When the stop portion 223 is combined with the stop groove 41, the upper side surface of the linkage section 221 is higher than the upper side surface of the stop section 222, and the upper side surface of the linkage section 221 does not exceed the upper surface of the driving member 50; when the stop portion 223 is separated from the knife seat 40, the upper side surface of the stop section 222 is higher than the upper side surface of the linkage section 221, and the upper side surface of the stop section 222 does not exceed the upper surface of the driving member 50, so as to reduce the total height of the anti-rotation member 20 and the driving member 50 when the two are installed, thereby reducing the occupied space in the knife housing 70.

[0046] In some embodiments, Figure 7 As shown, the end of the linkage section 221 is provided with an arc surface, which is suitable for relatively sliding against the push button 60. The friction of the linkage section 221 sliding relative to the push button 60 is reduced. In an optional embodiment, the end of the linkage section 221 is a cylinder, and the arc side surface of the cylinder is suitable for abutting against the lower surface of the push button 60.

[0047] In some embodiments, Figure 1-Figure 6 As shown, the reset member 30 is a compression spring, which is arranged below the end of the linkage section 221, and can provide torque to the anti-rotation member 20, so that the anti-rotation member 20 abuts against the knife seat 40 and / or the push button 60. Specifically, one end of the compression spring abuts against the end of the linkage section 221, and the other end of the compression spring is connected to the driving member 50, so that it can move together with the driving member 50. When the push button 60 is pressed, the push button 60 abuts against the end of the linkage section 221 and overcomes the elastic force of the compression spring to rotate the main body 22, thereby disengaging the stop portion 223 from the knife seat 40, and the knife seat 40 can rotate relative to the driving member 50 to rotate out or in the knife housing 70. When the push button 60 is released, it is reset, and the compression spring against the linkage section 221 is extended, so that the main body 22 rotates, and then the stop portion 223 engages with the stop groove 41, or the stop portion 223 abuts against the upper surface of the knife seat 40, thereby preventing the knife seat 40 from rotating relative to the driving member 50, thereby improving the safety of the tool use.

[0048] In some embodiments, Figure 7 As shown, the side of the stop portion 223 facing the tool holder 40 is provided with a first stop surface 2231 and a second stop surface 2232, the first stop surface 2231 and the second stop surface 2232 are arranged at an angle, the first stop surface 2231 is suitable for forming a surface contact with the bottom surface of the stop groove 41, and the second stop surface 2232 is suitable for forming a surface contact with the upper surface of the tool holder 40, so as to improve the reliability of the connection between the stop portion 223 and the tool holder 40.

[0049] Specifically, when the first stop surface 2231 of the stop portion 223 abuts against the bottom surface of the stop groove 41, the second stop surface 2232 is separated from the bottom surface of the stop groove 41. Figure 5 When the second stop surface 2232 of the stop portion 223 abuts against the upper surface of the knife seat 40, the first stop surface 2231 is separated from the upper surface of the knife seat 40, as shown Figure 2 That is to say, when the stopper 223 abuts against the upper surface of the knife seat 40 or the stopper 223 abuts against the bottom surface of the stopper groove 41, both are surface contact, which can increase the friction force and improve the reliability of the connection between the stopper 223 and the knife seat 40.

[0050] A tool such as Figure 1-Figure 6 As shown, it includes: a knife housing 70, which is provided with a accommodating cavity and a port, and the port is opened at the front end of the knife housing 70; a knife seat 40, which carries a blade 42, and the knife seat 40 is rotatably installed in the accommodating cavity, and a plurality of stop grooves 41 are opened on the circumferential side of the upper surface of the knife seat 40; a driving member 50, which is drivably connected to the knife seat 40 so that the knife seat 40 can be rotated out of or into the accommodating cavity; a push button 60, which is elastically pressed and locked to the knife housing 70 by a spring, and the push button 60 is connected to the driving member 50, so that the knife seat 40 can be moved or locked to an optional position by the driving member 50; and the above-mentioned anti-rotation component 10 for a tool, the anti-rotation component 10 is rotatably installed on the driving member 50, one end of the anti-rotation member 20 is movably connected to the push button 60, and the other end of the anti-rotation member 20 is suitable for detachably engaging with the stop groove 41, and pressing the push button 60 can engage or separate the anti-rotation member 20 with the stop groove 41.

[0051] In some embodiments, Figure 8 As shown, the driving member 50 is provided with a receiving groove 51 to accommodate the anti-rotation member 20. The driving member 50 is also provided with an escape channel 52 to connect the receiving groove 51 and the outside. The stop portion 223 of the anti-rotation member 20 is suitable for passing through the escape channel 52 and abutting against the knife seat 40, so that the assembly structure of the anti-rotation component 10 and the driving member 50 is more compact.

[0052] In a specific embodiment, Fig. 9 As shown, there are two stop grooves 41, one of which is opened at the beveled portion of the upper surface of the knife seat 40, and the other stop groove 41 is opened at the upper edge of the upper surface of the knife seat 40. Figure 1 and Figure 2 As shown, when the knife holder 40 is locked in the longitudinal position, the blade 42 is parallel to the axial direction of the knife housing 70, and the knife can be used as a cutting knife. At this time, the stop portion 223 abuts against the right edge of the upper surface of the knife holder 40, and the friction between the stop portion 223 and the upper surface of the knife holder 40 can prevent the knife holder 40 from accidentally rotating relative to the driving member 50; Figure 3-Figure 6As shown, when the knife seat 40 is locked in the transition position, the blade of the blade 42 forms an angle of 45° with the axis of the knife housing 70, and the tool can be used as an oblique scraper. At this time, the stop portion 223 engages with the stop groove 41 located at the oblique angle portion of the knife seat 40, so as to prevent the knife seat 40 from accidentally rotating relative to the driving member 50; when the knife seat 40 is locked in the horizontal position, the blade of the blade 42 forms an angle of 90° with the axis of the knife housing 70, and the tool can be used as a scraper. At this time, the stop portion 223 engages with the stop groove 41 located at the upper edge of the knife seat 40, so as to prevent the knife seat 40 from accidentally rotating relative to the driving member 50. It can be understood that when the knife seat 40 is located in the transition position and the lateral position, the right side of the upper surface of the knife seat 40 is exposed outside the knife housing 70. When the anti-rotation member 20 is abutted against the upper surface of the knife seat 40 through the reset member 30, the friction between the stop portion 223 and the upper surface of the knife seat 40 can prevent the knife seat 40 from accidentally rotating relative to the driving member 50, and the stop groove 41 can be avoided on the right side of the upper surface of the knife seat 40.

[0053] It is understood that, in another specific embodiment, Fig.10 and Fig.11 As shown, there are three stop grooves 41, which are respectively opened on the right side of the upper surface of the tool holder 40, the beveled part of the upper surface of the tool holder 40 and the upper edge of the upper surface of the tool holder 40. When the tool holder 40 is located in the longitudinal position, the transition position or the transverse position, the stop portion 223 can be combined with the corresponding stop groove 41 respectively, so as to further improve the connection strength between the anti-rotation component 20 and the tool holder 40 and improve the safety and reliability of the tool.

[0054] The above describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and the specification only describe the principles of the present invention. The present invention may be subject to various changes and improvements without departing from the spirit and scope of the present invention. These changes and improvements fall within the scope of the present invention. The scope of protection claimed by the present invention is defined by the attached claims and their equivalents.

Claims

1. An anti-rotation component for a tool, It is characterized in that include: At least one stop groove, the stop groove is formed on the surface of the knife seat; The anti-rotation member is rotatably connected to the driving member so as to move together with the driving member. One end of the anti-rotation member is movably connected to a push button, and the other end of the anti-rotation member is suitable for detachably engaging with the stop groove so as to keep the knife holder in an optional position. Pressing the push button can engage or disengage the anti-rotation member from the stop groove.

2. The anti-rotation assembly for a tool according to claim 1, It is characterized in that It also includes a reset member, which elastically connects the anti-rotation member and the driving member to provide torque to the anti-rotation member, so that the anti-rotation member abuts against the knife seat and / or the push button.

3. The anti-rotation assembly for a tool according to claim 2, It is characterized in that The anti-rotation component includes a main body, a rotating shaft and a stop portion. The rotating shaft is protrudingly located on the side of the main body so as to be rotatably connected to the driving member. The stop portion protrudes from one end of the main body toward the knife seat so as to be accommodated in the stop groove. The other end of the main body is located below the push button so as to be adapted to resist the push button under the action of the reset member.

4. The anti-rotation assembly for a tool according to claim 3, It is characterized in that The main body portion includes an integrally formed stop section and a linkage section, the shaft portion is located at the connection between the stop section and the linkage section, the stop section extends from the shaft portion toward the knife seat, the stop portion is located at the end of the stop section, and the linkage section extends from the shaft portion toward the push button, the upper side surface of the stop section and the upper side surface of the linkage section are arranged at an angle, so that during the rotation of the anti-rotation part, the upper side surface of the stop section and the upper side surface of the linkage section are lower than the upper side surface of the driving part.

5. The anti-rotation assembly for a tool according to claim 4, It is characterized in that The end of the linkage section is provided with an arc surface, which is suitable for relatively sliding against the push button.

6. The anti-rotation assembly for a tool according to claim 4, It is characterized in that The reset member is a compression spring, which is arranged below the end of the linkage section, and can provide torque to the anti-rotation member, so that the anti-rotation member abuts against the knife seat and / or the push button.

7. The anti-rotation assembly for a tool according to any one of claims 3 to 6, It is characterized in that The stop portion is provided with a first stop surface and a second stop surface on the side facing the tool holder, the first stop surface and the second stop surface are arranged at an angle, the first stop surface is suitable for forming a surface contact with the bottom surface of the stop groove, and the second stop surface is suitable for forming a surface contact with the upper surface of the tool holder.

8. The anti-rotation assembly for a tool according to any one of claims 3 to 6, It is characterized in that The extension directions of the main body and the stop portion pass through the rotation center of the knife holder relative to the driving member, and the extension direction of each stop groove passes through the rotation center of the knife holder relative to the driving member, so that the stop portion of the anti-rotation member can engage with each stop groove.

9. A knife, It is characterized in that include: A knife housing, wherein the knife housing is provided with a receiving cavity and a port, and the port is opened at the front end of the knife housing; A knife seat, the knife seat carries a blade, the knife seat is rotatably mounted in the accommodating cavity, and a plurality of stop grooves are provided on the circumference of the upper surface of the knife seat; A driving member, the driving member being drivably connected to the knife seat so that the knife seat is rotated out of or into the accommodating cavity; A push button, wherein the push button is elastically pressed and locked to the knife housing by a spring, and the push button is connected to the driving member, so that the knife holder can be moved or locked to an optional position by the driving member; as well as The anti-rotation component for a tool as described in any one of claims 1 to 8, wherein the anti-rotation component is rotatably mounted on the driving member, one end of the anti-rotation component is movably connected to the push button, and the other end of the anti-rotation component is suitable for detachably engaging with the stop groove, and pressing the push button can engage or disengage the anti-rotation component with the stop groove.

10. The cutting tool according to claim 9, It is characterized in that The driving member is provided with a receiving groove to receive the anti-rotation member, and the driving member is also provided with an escape channel to connect the receiving groove and the outside, and the stop portion of the anti-rotation member is suitable for passing through the escape channel to abut against the knife seat.

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