Tool holder assembly and tool having the same

Abstract

This utility model provides a knife handle assembly and a knife having the same. The knife handle assembly includes: a knife handle with a receiving groove extending through the rear surface of the knife handle and an end opening communicating with the receiving groove; a blade holder movably disposed within the receiving groove along a first preset direction and having an extended position and a retracted position; a locking component movably disposed on the blade holder and used to lock or unlock the working blade; and a push button assembly movably disposed on the knife handle along the first preset direction, connected to the blade holder to move the blade holder between the extended position and the retracted position. When the blade holder is in the extended position, the push button assembly can move along a second preset direction and cause the locking component to switch to the unlocked position. The technical solution of this application effectively solves the problem in related technologies where users need to operate different buttons to achieve different functions, which is inconvenient for users.

Description

[0001] Related applications

[0002] This application claims priority to Chinese Patent Application No. CN202423323777.X, filed on December 31, 2024, entitled "Tool Handle Assembly and Tool Having Therethe", the entire contents of which are incorporated herein by reference. Technical Field

[0003] This utility model relates to the field of operating tool technology, and more specifically, to a knife handle assembly and a cutting tool having the same. Background Technology

[0004] In related technologies, paper-cutting knives are among the most commonly used tools. To ensure the safety of the knife when not in use, it is generally designed with a retractable or foldable blade structure, allowing the blade to be stored away and prevent it from being exposed. At the same time, since the blade is a consumable, it will become dull or even break after a period of use, so the knife needs to be able to replace the blade.

[0005] To achieve the above functions, the handle is usually equipped with control buttons for extending or folding the blade and for changing the blade. Users need to operate different control buttons to achieve different functions, which is inconvenient for users. Utility Model Content

[0006] The main objective of this invention is to provide a tool holder assembly and a cutting tool having the same, in order to solve the problem in related technologies where users need to operate different control buttons to achieve different functions, which is inconvenient for users.

[0007] To achieve the above objectives, according to one aspect of the present invention, a knife handle assembly is provided, comprising: a knife handle having a receiving groove extending through the rear surface of the knife handle and an end opening communicating with the receiving groove; a blade holder having a mounting groove for mounting a working blade, the blade holder being movably disposed within the receiving groove along a first preset direction and having an extended position and a retracted position, wherein when the blade holder is in the extended position, a portion of the working blade extends out of the receiving groove through the end opening, and when the blade holder is in the retracted position, the working blade is completely located within the receiving groove; a locking assembly being movably disposed on the blade holder and used for locking or unlocking the working blade; and a push button assembly being movably disposed on the knife handle along the first preset direction, a first end of the push button assembly extending outward from the knife handle, and a second end of the push button assembly being connected to the blade holder to drive the blade holder to move between the extended position and the retracted position, wherein when the blade holder is in the extended position, the push button assembly can move along a second preset direction and drive the locking assembly to switch to the position of unlocking the working blade, wherein the second preset direction is set at an angle to the first preset direction.

[0008] Furthermore, the tool holder assembly also includes a rear cover plate, which is detachably disposed on the rear side of the tool holder and can cover the receiving groove.

[0009] Furthermore, the locking component includes a locking slide movably mounted on the blade holder, the locking slide being movable between a locked position and an unlocked position for the working blade.

[0010] Furthermore, the locking assembly also includes a transmission structure disposed between the locking slide and the push button assembly. The push button assembly drives the locking slide to move through the transmission structure so that the locking slide moves from the position of locking the working blade to the position of unlocking the working blade.

[0011] Furthermore, the transmission structure includes a swing arm that is oscillatingly mounted on the blade holder, a locking slide plate that abuts against the first end of the swing arm, and a push button assembly that abuts against the second end of the swing arm to move the locking slide plate.

[0012] Furthermore, the locking slide has an abutting protrusion on the side facing the swing arm; and / or, the push button assembly includes a pusher slide slidably mounted on the blade holder, the pusher slide being able to abut against the swing arm. Furthermore, a second end of the push button assembly passes through the locking slide to move the locking slide.

[0013] Furthermore, the locking slide plate is provided with a clearance groove extending along the second preset direction. The second end of the push button assembly passes through the clearance groove and can abut against the end wall of the clearance groove to drive the locking slide plate from the position of locking the working blade to the position of unlocking the working blade.

[0014] Furthermore, the locking assembly also includes a first abutment disposed between the tool holder and the locking slide, the first abutment abutting against the locking slide to keep the locking slide in the locked working blade position.

[0015] Furthermore, a first locking block is provided on the locking slide plate, and a first locking notch is provided on the working blade. When the locking slide plate moves, it drives the first locking block to be inserted into or removed from the first locking notch. A pushing slope is provided on the first locking block. During the process of the working blade being inserted into the receiving groove from the end opening, the working blade can push against the pushing slope so that the locking slide plate moves to the position of unlocking the working blade.

[0016] Furthermore, a guide groove is provided on the tool holder, and the push button assembly is movably inserted into the guide groove. The guide groove includes a main groove section extending along a first preset direction and an unlocking groove section extending along a second preset direction. The unlocking groove section is located at one end of the main groove section near the end opening and communicates with the main groove section. When the push button assembly moves in the main groove section, the push button assembly drives the blade holder to move. When the push button assembly moves in the unlocking groove section, the push button assembly drives the locking assembly to move.

[0017] Furthermore, the push button assembly includes a guide and a second abutting member. The guide is inserted into a guide groove, which also includes a limiting groove that communicates with the main groove section. The limiting groove and the unlocking groove are located on opposite sides of the main groove section. When the guide is in the limiting groove section, the blade holder is held in the extended or retracted position. The second abutting member abuts against the guide so that the guide tends to move into the limiting groove section.

[0018] Furthermore, the limiting groove segment includes a first limiting groove located at the end of the main groove segment near the end opening and a second limiting groove located at the end of the main groove segment away from the end opening.

[0019] Furthermore, the tool holder includes a tool holder body, a front cover plate disposed on the front side of the tool holder body, and a limiting plate located between the front cover plate and the tool holder body. The front cover plate is provided with a guide groove extending in a first preset direction. The guide groove is disposed on the limiting plate. The push button assembly also includes a push button part, which is movably disposed in the guide groove. A guide member is movably disposed in the push button part in a second preset direction. A second abutting member is disposed between the push button part and the guide member.

[0020] Furthermore, the receiving slot includes a first receiving space and a second receiving space arranged from front to back. The blade holder is disposed in the first receiving space, and the mounting slot opens toward the second receiving space. The second receiving space can accommodate at least one spare blade. A third abutting member is provided on the rear cover plate. When the blade holder is in the storage position and no working blade is installed on the blade holder, the third abutting member can abut the spare blade and allow the foremost spare blade to enter the mounting slot.

[0021] Furthermore, the locking component engages with the upper or lower side of the working blade, and the end of the blade holder away from the end opening is provided with a rear protrusion, and the end of the working blade away from the end opening can engage with the rear protrusion for a stop.

[0022] Furthermore, when the blade holder is in the retracted position, the spare blade is located on the side of the rear protrusion near the end opening; and / or, when the blade holder is in the extended position, the spare blade is stacked with the rear protrusion.

[0023] Furthermore, the third abutment includes a first forward-protruding spring and a second forward-protruding spring. Before the working blade extends out of the opening, the projection of the front end of the first forward-protruding spring on the plane of the working blade and the projection of the front end of the second forward-protruding spring on the plane of the working blade both fall within the range of the working blade; and / or, a second locking block is provided on the side wall of the receiving groove, a second locking recess is provided on the spare blade, the second locking block is inserted into the second locking recess, and the locking component is located on the front side of the second locking block and spaced apart from the second locking block.

[0024] According to another aspect of the present invention, a cutting tool is provided, including a tool holder assembly and a working blade disposed within the tool holder assembly, wherein the tool holder assembly is the aforementioned tool holder assembly.

[0025] Applying the technical solution of this utility model, the knife handle is the main structure of the knife handle assembly, used to install other components. The knife handle has a receiving groove, in which a blade holder for mounting the working blade is movably disposed. When the blade holder moves, it can cause the working blade mounted on it to extend out of the knife handle assembly or retract into the knife handle assembly. When the knife is to be used, the blade holder is moved to the extended position so that the working blade extends out of the knife handle assembly; when the knife is not in use, the blade holder is in the retracted position to prevent the working blade from being exposed and scratching the user. A locking component is movably disposed on the blade holder and can lock or unlock the working blade. When the working blade is in good working condition, the locking component is kept in the locked position so that the working blade can be stably mounted on the blade holder so that the knife can be used normally; when the working blade is worn out due to severe wear, the locking component can be switched to the unlocked position so that the working blade can be removed and replaced. The push button assembly is movably mounted on the tool holder and can drive the blade holder to switch positions and the locking assembly to the unlocked position for the working blade. This allows the user to push or retract the working blade and change the working blade simply by operating the push button assembly, making it convenient for the user. Therefore, the technical solution of this application effectively solves the problem in related technologies where users need to operate different buttons to achieve different functions, which is inconvenient for the user. Attached Figure Description

[0026] The accompanying drawings, which form part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an undue limitation of the present invention. In the drawings:

[0027] Figure 1 An exploded structural diagram of one embodiment of the cutting tool according to the present invention is shown;

[0028] Figure 2 It shows Figure 1 A lateral sectional view of the cutting tool;

[0029] Figure 3 It shows Figure 1 A three-dimensional structural diagram of the cutting tool;

[0030] Figure 4 It shows Figure 1 A three-dimensional structural diagram of a portion of the cutting tool;

[0031] Figure 5 It shows Figure 4 A magnified view of point A on the cutting tool;

[0032] Figure 6 It shows Figure 1 A three-dimensional structural diagram of the blade holder of a cutting tool;

[0033] Figure 7 It shows Figure 6 A three-dimensional structural diagram of the blade holder from another angle;

[0034] Figure 8 It shows Figure 1 A three-dimensional structural diagram of the locking slide plate of the cutting tool;

[0035] Figure 9 It shows Figure 1 A three-dimensional structural diagram of a portion of the cutting tool;

[0036] Figure 10 It shows Figure 9 A magnified view of point B on the cutting tool;

[0037] Figure 11 It shows Figure 1 A three-dimensional structural diagram of a portion of the cutting tool, wherein a locking component locks the working blade;

[0038] Figure 12 It shows Figure 1 A three-dimensional structural diagram of a portion of the cutting tool, in which a locking component unlocks the working blade;

[0039] Figure 13 The diagram shows the cutting blade being removed from the cutting edge. Figure 1 The process of removing the blade;

[0040] Figure 14 The insertion of the working blade is shown. Figure 1 A process diagram of the tool receiving groove;

[0041] Figure 15 It shows Figure 1 A three-dimensional structural diagram of the front cover plate, limiting plate, and push button assembly of the cutting tool;

[0042] Figure 16 It shows Figure 1 An exploded view of the push button assembly;

[0043] Figure 17 It shows Figure 1 A three-dimensional structural diagram of the push button assembly;

[0044] Figure 18 It shows Figure 17 A three-dimensional structural diagram of the push button assembly from another angle;

[0045] Figure 19 It shows Figure 1 A three-dimensional structural diagram of the tool's limiting plate;

[0046] Figure 20 An exploded structural diagram of another embodiment of the cutting tool according to the present invention is shown;

[0047] Figure 21 It shows Figure 20 A lateral sectional view of the cutting tool;

[0048] Figure 22 It shows Figure 20 A three-dimensional structural diagram of the front cover plate, limiting plate and blade holder of the cutting tool;

[0049] Figure 23 It shows Figure 20 A three-dimensional structural diagram of the tool holder body, the blade holder, and the working blade;

[0050] Figure 24 It shows Figure 20 A three-dimensional structural diagram of the blade holder of a cutting tool;

[0051] Figure 25 It shows Figure 24 A three-dimensional structural diagram of the blade holder from another angle;

[0052] Figure 26 It shows Figure 20 A three-dimensional structural diagram of the locking slide plate of the cutting tool;

[0053] Figure 27 It shows Figure 20 A three-dimensional structural diagram of the locking slide and stepped pins of the cutting tool;

[0054] Figure 28 It shows Figure 20 A three-dimensional structural diagram of the locking slide and the first abutment of the cutting tool;

[0055] Figure 29 It shows Figure 20 A three-dimensional structural diagram of the tool's limiting plate;

[0056] Figure 30 It shows Figure 20 An exploded view of the push button assembly of the cutting tool;

[0057] Figure 31 It shows Figure 20 A three-dimensional structural diagram of the push button assembly, limiting plate, and front cover plate of the cutting tool;

[0058] Figure 32 It shows Figure 31A three-dimensional structural diagram of the push button assembly, limiting plate, and front cover from another angle;

[0059] Figure 33 The working blade 01 is shown from Figure 20 The process of removing the blade is shown in the diagram.

[0060] The above figures include the following reference numerals:

[0061] 01. Working blade; 011. First locking notch;

[0062] 02. Spare blade; 021. Second locking notch;

[0063] 10. Tool holder; 11. Guide groove; 111. Main groove section; 112. Unlocking groove section; 113. Limiting groove section; 1131. First limiting groove; 1132. Second limiting groove; 1133. Third limiting groove; 12. Tool holder body; 13. Front cover plate; 131. Guide slide groove; 14. Limiting plate; 15. Second locking block;

[0064] 20. Rear cover;

[0065] 30. Blade holder; 31. Rear protrusion; 32. First mounting recess; 33. First mounting post; 34. Upper stop edge; 35. Lower stop edge; 36. Locking notch; 37. First guide hole;

[0066] 40. Locking assembly; 41. Locking slide plate; 411. Abutting protrusion; 412. First locking block; 4121. Abutting ramp; 413. Second mounting post; 414. Clearance groove; 42. Transmission structure; 421. Swing rod; 43. First abutting component;

[0067] 50. Push button assembly; 51. Push slide; 52. Guide member; 521. Push pin; 522. Stepped pin; 5221. Shaft; 5222. Protruding edge; 53. Second abutment member; 54. Push button part; 541. Second guide hole; 542. Second mounting recess;

[0068] 60. Third abutment component; 61. First forward-protruding spring; 62. Second forward-protruding spring;

[0069] 100. Receiving groove; 101. First receiving space; 102. Second receiving space; 200. End opening; 300. Mounting groove;

[0070] a) First preset direction; b) Second preset direction. Detailed Implementation

[0071] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the present utility model or its application or use. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0072] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0073] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps described in these embodiments do not limit the scope of this invention. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0074] like Figures 1 to 3 , Figure 20 , Figure 21 , Figure 31 and Figure 32As shown, this application provides a knife handle assembly. An embodiment of the knife handle assembly includes: a knife handle 10, a rear cover plate 20, a blade holder 30, a locking assembly 40, and a push button assembly 50. The knife handle 10 has a receiving groove 100 penetrating the rear surface of the knife handle 10 and an end opening 200 communicating with the receiving groove 100. The blade holder 30 has a mounting groove 300 for mounting a working blade 01. The blade holder 30 is movably disposed within the receiving groove 100 along a first preset direction a and has an extended position and a retracted position. When the blade holder 30 is in the extended position, a portion of the working blade 01 extends out of the receiving groove 100 through the end opening 200. When the blade holder 30 is in the retracted position, the working blade 01 is completely retracted within the receiving groove 100. The locking assembly 40 is movably... The push button assembly 50 is mounted on the blade holder 30 and used to lock or unlock the working blade 01; the push button assembly 50 is movably mounted on the blade holder 10 along the first preset direction a, the first end of the push button assembly 50 extends outward from the blade holder 10, and the second end of the push button assembly 50 is connected to the blade holder 30 to drive the blade holder 30 to move between the extended position and the retracted position. When the blade holder 30 is in the extended position, the push button assembly 50 can move along the second preset direction b and drive the locking assembly 40 to switch to the position of unlocking the working blade 01. The second preset direction b is set at an angle to the first preset direction a.

[0075] Applying the technical solution of this embodiment, the knife handle 10 is the main structure of the knife handle assembly and is used to install other components. The knife handle 10 has a receiving groove 100, and the blade holder 30 for installing the working blade 01 is movably disposed in the receiving groove 100. When the blade holder 30 moves, it can drive the working blade 01 mounted on it to extend out of the knife handle assembly or retract into the inside of the knife handle assembly. When the knife is to be used, the blade holder 30 is moved to the extended position so that the working blade extends out of the knife handle assembly; when the knife is not in use, the blade holder 30 is placed in the storage position to prevent the working blade 01 from being exposed and scratching the user. The locking component 40 is movably mounted on the blade holder 30 and can lock or unlock the working blade 01. When the working blade 01 is performing well, the locking component 40 is kept in the locked position, allowing the working blade 01 to be stably mounted on the blade holder 30 for normal use. When the working blade 01 is worn out due to severe wear, the locking component 40 can be switched to the unlocked position to remove and replace the working blade 01. The push button component 50 is movably mounted on the tool holder 10 and can drive the blade holder 30 to switch positions and drive the locking component 40 to the unlocked position. This allows the user to easily push or retract the working blade 01 and replace it simply by operating the push button component 50. Therefore, the technical solution of this embodiment effectively solves the problem in related technologies where users need to operate different buttons to achieve different functions, which is inconvenient for users.

[0076] like Figure 1 As shown, in describing this application, the term "front" refers to the exposed side of the push button assembly 50 on the tool holder assembly, and the term "rear" refers to the non-exposed side of the push button assembly 50 on the tool holder assembly.

[0077] The included angle between the first preset direction a and the second preset direction b can be greater than or equal to 0° and less than or equal to 180°. Preferably, the included angle between the first preset direction a and the second preset direction b is greater than or equal to 60° and less than or equal to 120°.

[0078] Specifically, in this embodiment, the first preset direction a is parallel to the length direction of the tool holder assembly, and the second preset direction b is parallel to the width direction of the tool holder assembly.

[0079] The receiving groove 100 can be a groove structure with only a side opening, which is corresponding to the end opening 200. Of course, in order to facilitate the assembly of the tool holder assembly and the installation of the working blade 01, the receiving groove 100 can also be a groove structure with a side opening and a rear opening, which is corresponding to the end opening 200. In this case, a rear cover plate 20 can be provided to block the rear opening.

[0080] like Figures 1 to 3 The tool holder assembly also includes a rear cover plate 20, which is closable on the rear side of the tool holder 10 and can cover the receiving groove 100. When it is necessary to replenish or replace the working blade 01, the user can open the rear cover plate 20 to expose the receiving groove 100, replenish the working blade 01 or remove the existing working blade 01 from the receiving groove 100 and replace it.

[0081] like Figure 4 , Figure 5 , Figure 22 and Figure 23 As shown, the locking assembly 40 includes a locking slide plate 41 movably mounted on the blade holder 30. The locking slide plate 41 is movable between a locked position and an unlocked position for the working blade 01. Locking or unlocking the working blade 01 via the movable locking slide plate 41 has the advantages of simple structure and easy control.

[0082] like Figure 4 and Figure 5 As shown, the locking assembly 40 includes a locking slide plate 41 movably mounted on the blade holder 30 and a transmission structure 42 disposed between the locking slide plate 41 and the push button assembly 50. The push button assembly 50 drives the locking slide plate 41 to move via the transmission structure 42, moving the locking slide plate 41 from a position where the working blade 01 is locked to a position where the working blade 01 is unlocked. Locking or unlocking the working blade 01 via the movable locking slide plate 41 has the advantages of simple structure and easy control. The transmission structure 42, disposed between the locking slide plate 41 and the push button assembly 50, can transmit the driving force applied by the user to the push button assembly 50 to the locking slide plate 41, thereby moving the locking slide plate 41.

[0083] like Figure 4 and Figure 5 As shown, the transmission structure 42 includes a swing rod 421 that is swingably mounted on the blade holder 30. The locking slide plate 41 abuts against the first end of the swing rod 421. The push button assembly 50 can abut against the second end of the swing rod 421 to drive the locking slide plate 41 to move.

[0084] like Figure 5 As shown, the locking slide plate 41 has a stop protrusion 411 on the side facing the swing arm 421. Specifically, the stop protrusion 411 is an arc-shaped protrusion. The stop protrusion 411 can reduce the friction between the locking slide plate 41 and the swing arm 421 when the swing arm 421 drives the locking slide plate 41 to move, reduce the wear of both, and make the swing of the swing arm 421 and the movement of the locking slide plate 41 smoother.

[0085] like Figure 5As shown, the push button assembly 50 includes a pusher slide 51 slidably mounted on the blade holder 30, which engages with the swing arm 421. The pusher slide 51 is located at the second end of the push button assembly 50, and has an arc-shaped mating surface on the side facing the swing arm 421 to facilitate smoother movement of the pusher slide 51 and swing of the swing arm 421.

[0086] like Figure 5 , Figure 6 , Figure 24 and Figure 25 As shown, the pusher slide 51, the swing arm 421, and the locking slide plate 41 are all mounted on the front side of the blade holder 30, that is, on the side of the blade holder 30 facing away from the mounting groove 300. A first mounting recess 32 is provided on the rear surface of the blade holder 30. The pusher slide 51, the swing arm 421, and the locking slide plate 41 are all disposed in the first mounting recess 32, and the sidewall of the first mounting recess 32 can guide the movement of the pusher slide 51 and the locking slide plate 41. A first mounting post 33 is provided in the first mounting recess 32, and the swing arm 421 passes through the first mounting post 33 and can swing around the first mounting post 33. A first guide hole 37 is also provided in the first mounting recess 32. The first guide hole 37 is an elongated hole extending along a second preset direction b. The shaft portion 5221 for mounting the pusher slide 51 extends into the first guide hole 37 to guide the movement of the push button assembly 50 along the second preset direction b.

[0087] like Figure 9 and Figure 10 As shown, the locking assembly 40 also includes a first abutment 43 disposed between the handle 10 and the locking slide plate 41. The first abutment 43 abuts against the locking slide plate 41 to keep the locking slide plate 41 in the locked working blade 01 position. This configuration ensures that the locking slide plate 41 remains in the locked working blade 01 position without external force, and only moves to the unlocked working blade 01 position when the user drives the locking slide plate 41 via the push button assembly 50, thus guaranteeing the secure installation of the working blade 01.

[0088] like Figures 8 to 10 As shown, a second mounting post 413 is provided on the rear surface of the locking slide plate 41. The first abutting member 43 is a torsion spring structure. The first abutting member 43 has a main body and two spring arms connected to the main body. The post body is sleeved on the second mounting post 413. The two spring arms abut against the side wall of the receiving groove 100 or extend into the mounting groove on the tool holder 10 and abut against the mounting groove, so that the torsion spring structure applies a force toward the working blade 01 to the locking slide plate 41, so that the locking slide plate 41 has the potential energy to return to locking the working blade 01.

[0089] like Figure 8 , Figure 11 and Figure 12 As shown, a first locking block 412 is provided on the locking slide plate 41, and a first locking recess 011 is provided on the working blade 01. When the locking slide plate 41 moves, it drives the first locking block 412 to be inserted into or removed from the first locking recess 011. The first locking block 412 is provided with abutting inclined surface 4121. During the process of the working blade 01 being inserted from the end opening 200 into the receiving groove 100, the working blade 01 can push against the abutting inclined surface 4121 to move the locking slide plate 41 to the position of unlocking the working blade 01. The position of the working blade 01 is locked by the cooperation of the first locking block 412 and the first locking recess 011, which has the advantages of simple structure and reliable locking. The first locking block 412 is provided with abutting ramp 4121, so that when the working blade 01 is inserted from the end opening 200, the working blade 01 can push against the first locking block 412, causing the locking slide plate 41 to move to overcome the force of the first abutting member 43. Through the cooperation between the working blade 01 and the abutting ramp 4121, the locking slide plate moves to the position to unlock the working blade 01, so that the working blade 01 can be smoothly inserted into the receiving groove 100. When the working blade 01 moves to the position where the first locking recess 011 is directly opposite the first locking block 412, the locking slide plate 41 will move towards the working blade 01 under the action of the first abutting member 43, so that the first locking block 412 is inserted into the first locking recess 011, thereby locking the working blade 01. In the above-described process of inserting the working blade 01, the user only needs to push the working blade 01 into the receiving groove 100, which is simple to operate.

[0090] Figure 14 The diagram shows the process of inserting the working blade 01 into the receiving slot, with the working blade 01 moving towards... Figure 14 During the process of moving the blade 01 to the left and inserting it into the receiving groove 100, the left side wall of the working blade 01 engages with the abutting inclined surface 4121 and pushes the locking slide plate 41 upward, causing the locking slide plate 41 to move to the position where the first locking block 412 is above the working blade 01. This allows the working blade 01 to continue moving to the left. When the working blade 01 moves to the position where the first locking recess 011 is directly opposite the first locking block 412, the locking slide plate 41 will move downward under the action of the first abutting member 43, thereby causing the first locking block 412 to be inserted into the first locking recess 011, thus locking the working blade 01 and realizing the function of quickly replacing the working blade 01.

[0091] When one end of the working blade 01 is worn and no longer sharp, the user can operate the push button assembly 50 to drive the locking assembly 40 to unlock the working blade 01 and remove it. Then, the working blade 01 is rotated 180° so that the blunt end of the working blade 01 is inserted into the shank assembly with the receiving groove 100 so that the sharp side of the other end of the working blade 01 can continue to be used.

[0092] Figure 13 A flowchart is shown to remove the working blade 01 from the tool holder assembly. The user drives the locking slide plate 41 upward by pushing the button assembly 50, so that the first locking block 412 moves upward above the working blade 01 to unlock the working blade 01. Then the user can remove the working blade 01 from the tool holder assembly to the right. After the user releases the push button assembly 50, the locking slide plate 41 will move downward under the action of the first abutment 43.

[0093] like Figures 8 to 10 As shown, the locking slide plate 41 is provided with two first locking blocks 412, which are symmetrically arranged. The abutting slope 4121 is located on the side of the first locking block 412 away from the other first locking block 412. When no working blade 01 is installed on the blade holder 30 and the blade holder 30 moves from the extended position to the retracted position, the abutting slope 4121 on the first locking block 412 away from the end opening 200 will abut against the contour of the spare blade 02 in the receiving groove 100, so that the locking slide plate 41 moves to the first locking block 412 to avoid the spare blade 02. The position allows the blade holder 30 to move smoothly to the storage position. When the first locking block 412 aligns with the second locking notch 021 on the spare blade 02, the foremost spare blade 02 will enter the mounting groove 300 under the action of the third abutment 60. The locking slide plate 41 will also move towards the spare blade 02 (which can be understood as the spare blade 02 becoming the working blade 01) that has moved into the mounting groove 300 under the action of the first abutment 43, thus locking the spare blade 02 in the blade holder 30, thereby realizing the function of automatic blade filling.

[0094] like Figure 15 and Figure 19As shown, a guide groove 11 is provided on the tool holder 10, and the push button assembly 50 is movably inserted into the guide groove 11. The guide groove 11 includes a main groove section 111 extending along a first preset direction a and an unlocking groove section 112 extending along a second preset direction b. The unlocking groove section 112 is located at the end of the main groove section 111 near the end opening 200 and communicates with the main groove section 111. When the push button assembly 50 moves within the main groove section 111, the push button assembly 50 drives the blade holder 30 to move. When the push button assembly 50 moves within the unlocking groove section 112, the push button assembly 50 drives the locking assembly 40 to move. The guide groove 11 can guide the movement of the push button assembly 50. Specifically, the main groove section 111 can guide the movement of the push button assembly 50 to extend or retract the working blade 01, and the unlocking groove section 112 can guide the movement of the push button assembly 50 to unlock the working blade 01, so as to ensure the movement trajectory of the push button assembly 50.

[0095] like Figure 15 and Figure 19 As shown, the push button assembly 50 includes a guide member 52 and a second abutting member 53. The guide member 52 passes through the guide groove 11, which also includes a limiting groove section 113 communicating with the main groove section 111. The limiting groove section 113 and the unlocking groove section 112 are located on opposite sides of the main groove section 111. When the guide member 52 is located in the limiting groove section 113, the blade holder 30 remains in the extended or retracted position. The second abutting member 53 abuts against the guide member 52, causing the guide member 52 to tend to move into the limiting groove section 113. When the guide member 52 is located in the limiting groove section 113, the blade holder 30 can be kept in the extended or retracted position, thereby ensuring the positional stability of the working blade 01 in the working state and the retracted state. The second abutting member 53 abuts against the guide member 52, causing the guide member 52 to tend to move into the limiting groove section 113. When the guide member 52 moves to the position corresponding to the limiting groove section 113, it automatically enters the limiting groove section 113 and remains stably within it, preventing further pushing along the first preset direction a, thus ensuring the positional stability of the working blade 01. The unlocking groove section 112 and the limiting groove section 113 are located on opposite sides of the main groove section 111. This means the second abutting member 53 causes the guide member 52 to tend to leave the unlocking groove section 112, ensuring that the guide member 52 can only enter the unlocking groove section 112 to unlock the working blade 01 when operated by the user.

[0096] When the guide 52 is not in the limiting groove 113, there will be potential energy to overcome the second abutment 53. When the guide 52 is driven to the position corresponding to the limiting groove 113, the guide 52 will automatically fall into the limiting groove 113, thereby realizing the function of automatic locking when the push button assembly 50 is pushed to each position.

[0097] like Figure 19 As shown, the unlocking groove 112 is located at the end of the main groove 111 near the end opening 200. That is, when the push button assembly 50 moves into the unlocking groove 112, the working blade 01 is in the position where it extends the handle assembly the most. At this time, the guide 52 drives the locking slide plate 41 to the position where the first locking block 412 is disengaged from the first locking recess 011 through the push slide 51. This means that the working blade 01 is not restricted in position and can be taken out.

[0098] like Figure 15 and Figure 19 As shown, the limiting groove section 113 includes a first limiting groove 1131 located at one end of the main groove section 111 near the end opening 200 and a second limiting groove 1132 located at one end of the main groove section 111 away from the end opening 200. When the guide member 52 is located in the first limiting groove 1131, the blade holder 30 is held in the extended position, thereby keeping the working blade 01 in the extended state of the tool holder assembly; when the guide member 52 is located in the second limiting groove 1132, the blade holder 30 is held in the retracted position, thereby keeping the working blade 01 completely retracted inside the tool holder assembly.

[0099] like Figure 15 and Figure 19 As shown, the working blade 01 can have multiple positions with different extension lengths. In order to enable the working blade 01 to be positioned in these positions, a third limiting groove 1133 can be added between the first limiting groove 1131 and the second limiting groove 1132, and the number of the third limiting groove 1133 is not limited to one.

[0100] like Figures 15 to 17 As shown, the handle 10 includes a handle body 12, a front cover plate 13 disposed on the front side of the handle body 12, and a limiting plate 14 located between the front cover plate 13 and the handle body 12. The front cover plate 13 is provided with a guide groove 131 extending along a first preset direction a. The guide groove 11 is disposed on the limiting plate 14. The push button assembly 50 also includes a push button part 54, which is movably disposed in the guide groove 131. The guide member 52 is movably disposed in the push button part 54 along a second preset direction b. The second abutting member 53 is disposed between the push button part 54 and the guide member 52. When the user pushes the push button part 54 to move along the guide slide 131, the push button assembly 50 drives the blade holder 30 to move along the first preset direction a, so as to extend or retract the working blade 01; when the user pushes the guide member 52 set on the push button part 54 to move along the second preset direction b, it can drive the guide member 52 to disengage from the limiting groove section 113 or enter the unlocking groove section 112, so as to disengage the blade holder 30 from the storage position or the extended position or to unlock the working blade 01.

[0101] The limiting plate 14 is fixedly connected to the front cover plate 13. The front cover plate 13 can be a decorative piece.

[0102] Specifically, such as Figure 16 , Figure 17 and Figure 19 As shown, the push button 54 is provided with a second guide hole 541 extending along the second preset direction b, and the guide member 52 passes through the second guide hole 541. When the guide member 52 moves in the main groove section 111, the guide member 52 is located in the middle of the second guide hole 541; when the guide member 52 moves to the position corresponding to the limiting groove section 113, the guide member 52 will be automatically pushed into the limiting groove section 113 under the action of the second abutting member 53, at which time the guide member 52 is located at the first end of the second guide hole 541; if the blade holder 30 and the working blade 01 are to be removed from the current position, the user needs to apply a force opposite to the abutting force of the second abutting member 53 (that is, a force toward the second end of the second guide hole 541) to the guide member 52 so that the guide member 52 leaves the limiting groove section 113. When the user wants to remove the working blade 01, the push button 54 needs to be moved along the main groove section 111 to the end of the main groove section 111 near the end opening 200, and then the guide member 52 is pushed towards the second end of the second guide hole 541 so that the guide member 52 overcomes the pushing force of the second abutting member 53 and moves into the unlocking groove section 112. At this time, the guide member 52 will drive the push sliding piece 51 at its end to push the rocker arm 421, thereby driving the locking slide plate 41 to unlock the working blade 01. At this time, the working blade 01 can be removed from the handle assembly.

[0103] like Figures 16 to 18 As shown, the guide member 52 includes a push pin 521 on the front side of the push button portion 54 and a stepped pin 522 on the rear side of the push button portion 54. The stepped pin 522 includes a shaft portion 5221 and a raised edge portion 5222 disposed in the middle of the shaft portion 5221. The front end of the shaft portion 5221 passes through the second guide hole 541 and is riveted to the push pin 521, pushing the rear end of the shaft portion 5221 of the slide plate 51. The rear end of the shaft portion 5221 can pass through the first guide hole 37 on the blade holder 30. When it is necessary to adjust the position of the guide member 52 in the second preset direction b, the user can push the push pin 521.

[0104] like Figure 18 As shown, a second mounting recess 542 is provided on the rear side of the push button portion 54. The protruding edge 5222 of the stepped pin 522 and the second abutting member 53 are both installed in the second mounting recess 542. The second abutting member 53 is a "V"-shaped elastic member, one of which abuts against the side wall of the second mounting recess 542, and the other of which abuts against the shaft portion 5221 of the stepped pin 522, so as to apply a force to the guide member 52 toward the first end of the second guide hole 541. After the guide member 52 disengages from the first end of the second guide hole 541, the second abutting member 53 provides the guide member 52 with the potential energy to return to the first end of the second guide hole 541.

[0105] like Figure 2 and Figure 3 As shown, the receiving slot 100 includes a first receiving space 101 and a second receiving space 102 arranged from front to back. The blade holder 30 is disposed in the first receiving space 101, and the mounting slot 300 opens towards the second receiving space 102. The second receiving space 102 can accommodate at least one spare blade 02. A third abutment 60 is provided on the rear cover plate 20. When the blade holder 30 is in the storage position and no working blade 01 is installed on the blade holder 30, the third abutment 60 can abut the spare blade 02 and cause the foremost spare blade 02 to enter the mounting slot 300. With the above arrangement, after the blade holder 30 is not equipped with a working blade 01 and the storage position is switched, the spare blade 02 will automatically enter the mounting slot 300 of the blade holder 30 under the action of the third abutment 60, that is, automatic blade replenishment is achieved, which is convenient for users.

[0106] The third abutting member 60 abuts forward against the spare blade 02 and the working blade 01, so that the surface of the working blade 01 is always in contact with the bottom wall of the mounting groove 300 of the blade holder 30, thereby enabling the blade holder 30 to drive the working blade 01 to different lengths of the extension of the handle assembly when the push button assembly 50 is in each position.

[0107] It is understood that the boundary between the first receiving space 101 and the second receiving space 102 is the plane where the rear surface of the blade holder 30 is located. That is, the part of the receiving groove 100 located on the front side of the rear surface of the blade holder 30 is the first receiving space 101, and the part of the receiving groove 100 located on the rear side of the rear surface of the blade holder 30 is the second receiving space 102.

[0108] In this embodiment, the rear cover plate 20 is detachably disposed on the rear side of the handle 10. When it is necessary to replenish the spare blade 02, the user can open the rear cover plate 20 to expose the receiving groove 100 and then replenish the spare blade 02 into the receiving groove 100.

[0109] It should be noted that the terms "working blade 01" and "spare blade 02" are used in the description of this application, but the structures of these two blades are the same. When the spare blade 02 is installed on the blade holder 30, it becomes the working blade 01.

[0110] like Figure 1 , Figure 3 and Figure 7As shown, the locking component 40 engages with the upper or lower side of the working blade 01. The end of the blade holder 30 away from the end opening 200 is provided with a rear protrusion 31, and the end of the working blade 01 away from the end opening 200 can engage with the rear protrusion 31 for a stop. By providing the locking component 40, the rear protrusion 31, and the third abutment 60, the working blade 01 can be limited in the vertical, horizontal, and longitudinal directions, ensuring the stability of the working blade 01 mounted on the blade holder 30.

[0111] like Figure 6 and Figure 7 As shown, the blade holder 30 also has an upper stop 34 and a lower stop 35, which can limit the working blade 01 in the vertical direction. The upper stop 34 is also provided with a locking notch 36, the upper end of the locking slide plate 41 is provided corresponding to the locking notch 36, and the first locking block 412 provided on the rear surface of the locking slide plate 41 extends into the locking notch 36 to lock and engage with the working blade 01 located in the mounting groove 300.

[0112] like Figure 3 As shown, when the blade holder 30 is in the retracted position, the spare blade 02 is located on the side of the rear protrusion 31 near the end opening 200. This arrangement ensures that the rear protrusion 31 does not obstruct the spare blade 02 from moving forward into the mounting slot 300, thereby enabling automatic blade replenishment.

[0113] like Figure 3 As shown, when the blade holder 30 is in the extended position, the spare blade 02 is stacked with the rear protrusion 31. At this time, the rear protrusion 31 will block the spare blade 02 from moving forward, so that the spare blade 02 will not move into the retraction path of the blade holder 30 under the action of the third abutment 60, ensuring that the blade holder 30 can retract from the extended position to the storage position.

[0114] like Figure 3 As shown, the third abutment 60 includes a first forward-protruding spring 61 and a second forward-protruding spring 62. Before the working blade 01 extends into the end opening 200, the projections of the front end of the first forward-protruding spring 61 onto the plane of the working blade 01 and the projections of the front end of the second forward-protruding spring 62 onto the plane of the working blade 01 both fall within the range of the working blade 01. Because the working blade itself is very thin, when there is only one abutment point between the working blade and the third abutment, the four corners of the working blade are prone to warping, which may prevent the working blade from aligning with the end opening, thus preventing the working blade from extending out of the handle assembly. In this embodiment, by providing the first forward-protruding spring 61 and the second forward-protruding spring 62, there are at least two abutment points between the third abutment 60 and the working blade 01, thereby preventing the corners of the working blade 01 from warping before the end opening 200, ensuring that the working blade 01 can smoothly extend into the end opening 200.

[0115] like Figure 3 As shown, a second locking block 15 is provided on the side wall of the receiving groove 100, and a second locking recess 021 is provided on the spare blade 02. The second locking block 15 is inserted into the second locking recess 021, and the locking component 40 is located in front of the second locking block 15 and spaced apart from it. When the user opens the rear cover 20 to add the spare blade 02 into the second receiving space 102, the placement position of the spare blade 02 can be determined by the cooperation between the second locking recess 021 and the second locking block 15. Since the locking component 40 is provided on the blade holder 30, the locking component 40 will also move along the first preset direction a when the blade holder 30 moves. By spaced apart in the front-rear direction, the locking component 40 and the second locking block 15 can avoid interference between them and thus avoid affecting the movement of the blade holder 30 in the first preset direction a.

[0116] In one embodiment, such as Figure 20 As shown, there is no transmission structure between the push button assembly 50 and the locking slide plate 41. Instead, the force is transmitted through the direct contact between the push button assembly 50 and the locking slide plate 41, thereby achieving the locking and unlocking of the working blade 01.

[0117] like Figure 22 , Figure 23 and Figure 27 As shown, the second end of the push button assembly 50 passes through the locking slide plate 41 to drive the locking slide plate 41 to move. Through the cooperation between the second end of the push button assembly 50 and the locking slide plate 41, the driving force applied by the user to the push button assembly 50 can be transmitted to the locking slide plate 41 to drive the locking slide plate 41 to the position of the unlocking working blade 01. It has the advantages of simple structure and easy control.

[0118] like Figures 26 to 28As shown, the locking slide plate 41 is provided with a clearance groove 414 extending along the second preset direction b. The second end of the push button assembly 50 passes through the clearance groove 414 and can abut against the end wall of the clearance groove 414 to drive the locking slide plate 41 from the position of the locking working blade 01 to the position of the unlocking working blade 01. When the push button assembly 50 moves along the main groove section 111, the push button assembly 50 contacts or is separated from the end wall of the avoidance groove 414 near the first locking block 412 by a small distance. When the user needs to replace the working blade 01, the push button assembly 50 can be pushed towards the direction of the first locking block 412 so that the push button assembly 50 and the end wall of the avoidance groove 414 near the first locking block 412 abut against each other, thereby driving the locking slide plate 41 to move to the position of unlocking the working blade 01. When the push button assembly 50 moves into the limiting groove section 113 under the action of the second abutting member 53, the avoidance groove 414 can avoid the movement of the push button assembly 50 towards the limiting groove section 113, so that the first locking block 412 remains stationary while the push button assembly 50 can enter into the limiting groove section 113.

[0119] When the user needs to use the tool, they can apply a force along the first preset direction a to the push button assembly 50 to move the locking slide plate 41, the blade holder 30, and the working blade 01 placed in the blade holder 30 to the extended position along the first preset direction a. When the user needs to replace the working blade 01, they can apply a force along the first preset direction a to the push button assembly 50 when the working blade 01 is in the extended position. Figure 33 In the upward direction (i.e., along the second direction), to drive the locking slide 41 along... Figure 33 Move in the upward direction (i.e., along the second direction) to switch the working blade 01 to the unlocked working blade 01 position to achieve the purpose of changing the working blade 01.

[0120] Figure 33 The diagram illustrates the process of removing the working blade 01 from the receiving slot 100 in this embodiment. The user drives the locking slide plate 41 upward by pushing the button assembly 50, so that the first locking block 412 moves upward above the working blade 01 to unlock the working blade 01. Then the user can remove the working blade 01 from the handle assembly to the right. After the user releases the push button assembly 50, the locking slide plate 41 will move downward under the action of the first abutment 43.

[0121] During the process of the user inserting the working blade 01 into the receiving groove 100, the left side wall of the working blade 01 cooperates with the abutting inclined surface 4121 and pushes the locking slide plate 41 upward, so that the locking slide plate 41 moves to the position where the first locking block 412 is above the working blade 01, thereby allowing the working blade 01 to continue to move to the left. When the working blade 01 moves to the position where the first locking recess 011 is directly opposite the first locking block 412, the locking slide plate 41 will move downward under the action of the first abutting member 43, thereby allowing the first locking block 412 to be inserted into the first locking recess 011, realizing the locking of the working blade 01, thus realizing the function of quickly replacing the working blade 01.

[0122] like Figure 20 and Figure 21 As shown, the rear cover plate 20 is fixedly mounted on the rear side of the tool holder 10.

[0123] like Figure 29 and Figure 30 As shown, the guide groove 11 provided on the limiting plate 14 includes a main groove section 111, an unlocking groove section 112 and a limiting groove section 113. The unlocking groove section 112 is located above the main groove section 111, and the limiting groove section 113 is located below the main groove section 111. Specifically, in this embodiment, no additional transmission structure is provided between the push button assembly 50 and the locking slide plate 41. The push button assembly 50 and the locking slide plate 41 directly contact each other to transmit driving force. When the user applies an upward driving force along the second preset direction b to the push button assembly 50, the push button assembly 50 drives the locking slide plate 41 to move upward in the second preset direction b in sync. Therefore, the unlocking groove section 112 is set above the main groove section 111 to realize the function of unlocking the working blade 01. Correspondingly, the limiting groove section 113 is set below the main groove section 111. The second abutting member 53 of the push button assembly 50 abuts the stepped nail 522 downward so that when the stepped nail 522 moves to the opening of the limiting groove section 113, the stepped nail 522 can automatically enter the limiting groove section 113 under the action of the second abutting member 53, so that the working blade 01 is stably kept in this position.

[0124] like Figure 21 As shown, the receiving slot 100 includes only a first receiving space 101 for placing the blade holder 30.

[0125] like Figures 1 to 3 as well as Figure 20 As shown, this application also provides a cutting tool. An embodiment of the cutting tool of this application includes a tool holder assembly and a working blade 01 disposed within the tool holder assembly, wherein the tool holder assembly is the aforementioned tool holder assembly. The aforementioned tool holder assembly effectively solves the problem in related technologies where users need to operate different control buttons to achieve different functions, which is inconvenient for users. The cutting tool having the aforementioned tool holder assembly also has the aforementioned advantages.

[0126] In the description of this utility model, it should be understood that the directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this utility model. The directional terms "inner" and "outer" refer to the inner and outer contours of each component itself.

[0127] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0128] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be construed as limiting the scope of protection of this utility model.

[0129] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A tool holder assembly, characterized in that, include: The handle (10) has a receiving groove (100) extending through the rear surface of the handle (10) and an end opening (200) communicating with the receiving groove (100); The blade holder (30) has a mounting groove (300) for mounting a working blade (01). The blade holder (30) is movably disposed in the receiving groove (100) along a first preset direction (a) and has an extended position and a retracted position. When the blade holder (30) is in the extended position, a portion of the working blade (01) extends out of the receiving groove (100) through the end opening (200). When the blade holder (30) is in the retracted position, the working blade (01) is completely located in the receiving groove (100). A locking component (40) is movably disposed on the blade holder (30) and used to lock or unlock the working blade (01); A push button assembly (50) is movably disposed on the handle (10) along the first preset direction (a). The first end of the push button assembly (50) extends outward from the handle (10), and the second end of the push button assembly (50) is connected to the blade holder (30) to drive the blade holder (30) to move between the extended position and the retracted position. When the blade holder (30) is in the extended position, the push button assembly (50) can move along the second preset direction (b) and drive the locking assembly (40) to switch to the position of unlocking the working blade (01). The second preset direction (b) is set at an angle to the first preset direction (a).

2. The tool holder assembly according to claim 1, characterized in that, The tool holder assembly also includes a rear cover plate (20), which is detachably disposed on the rear side of the tool holder (10) and can cover the receiving groove (100).

3. The tool holder assembly according to claim 1, characterized in that, The locking assembly (40) includes a locking slide plate (41) movably disposed on the blade holder (30), the locking slide plate (41) being movable between a position for locking the working blade (01) and a position for unlocking the working blade (01).

4. The tool holder assembly according to claim 3, characterized in that, The locking assembly (40) further includes a transmission structure (42) disposed between the locking slide plate (41) and the push button assembly (50). The push button assembly (50) drives the locking slide plate (41) to move through the transmission structure (42) so that the locking slide plate (41) moves from the position of locking the working blade (01) to the position of unlocking the working blade (01).

5. The tool holder assembly according to claim 4, characterized in that, The transmission structure (42) includes a swing arm (421) that is swingably mounted on the blade holder (30). The locking slide plate (41) abuts against the first end of the swing arm (421). The push button assembly (50) can abut against the second end of the swing arm (421) to drive the locking slide plate (41) to move.

6. The tool holder assembly according to claim 3, characterized in that, The second end of the push button assembly (50) passes through the locking slide plate (41) to drive the locking slide plate (41) to move.

7. The tool holder assembly according to claim 6, characterized in that, The locking slide plate (41) is provided with a clearance groove (414) extending along the second preset direction (b). The second end of the push button assembly (50) passes through the clearance groove (414) and can abut against the end wall of the clearance groove (414) to drive the locking slide plate (41) from the position of locking the working blade (01) to the position of unlocking the working blade (01).

8. The tool holder assembly according to any one of claims 3 to 7, characterized in that, The locking assembly (40) further includes a first abutment (43) disposed between the handle (10) and the locking slide plate (41), the first abutment (43) abutting against the locking slide plate (41) so that the locking slide plate (41) is held in the position of locking the working blade (01).

9. The tool holder assembly according to claim 8, characterized in that, The locking slide plate (41) is provided with a first locking block (412), and the working blade (01) is provided with a first locking notch (011). When the locking slide plate (41) moves, it drives the first locking block (412) to be inserted into the first locking notch (011) or to be moved out of the first locking notch (011). The first locking block (412) is provided with a pushing slope (4121). During the process of the working blade (01) being inserted into the receiving groove (100) from the end opening (200), the working blade (01) can push against the pushing slope (4121) so that the locking slide plate (41) moves to the position of unlocking the working blade (01).

10. The tool holder assembly according to any one of claims 1 to 7, characterized in that, The handle (10) is provided with a guide groove (11), and the push button assembly (50) is movably inserted into the guide groove (11). The guide groove (11) includes a main groove section (111) extending along the first preset direction (a) and an unlocking groove section (112) extending along the second preset direction (b). The unlocking groove section (112) is located at one end of the main groove section (111) near the end opening (200) and communicates with the main groove section (111). When the push button assembly (50) moves in the main groove section (111), the push button assembly (50) drives the blade holder (30) to move. When the push button assembly (50) moves in the unlocking groove section (112), the push button assembly (50) drives the locking assembly (40) to move.

11. The tool holder assembly according to claim 10, characterized in that, The push button assembly (50) includes a guide (52) and a second abutting member (53). The guide (52) passes through the guide groove (11). The guide groove (11) also includes a limiting groove (113) communicating with the main groove section (111). The limiting groove (113) and the unlocking groove (112) are located on opposite sides of the main groove section (111). When the guide (52) is located in the limiting groove (113), the blade holder (30) is held in the extended position or the retracted position. The second abutting member (53) abuts against the guide (52) so that the guide (52) tends to move into the limiting groove (113).

12. The tool holder assembly according to claim 11, characterized in that, The limiting groove segment (113) includes a first limiting groove (1131) located at the end of the main groove segment (111) near the end opening (200) and a second limiting groove (1132) located at the end of the main groove segment (111) away from the end opening (200); and / or, The handle (10) includes a handle body (12), a front cover plate (13) disposed on the front side of the handle body (12), and a limiting plate (14) located between the front cover plate (13) and the handle body (12). The front cover plate (13) is provided with a guide groove (131) extending along the first preset direction (a). The guide groove (11) is disposed on the limiting plate (14). The push button assembly (50) also includes a push button part (54). The push button part (54) is movably inserted into the guide groove (131). The guide member (52) is movably inserted into the push button part (54) along the second preset direction (b). The second abutting member (53) is disposed between the push button part (54) and the guide member (52).

13. The tool holder assembly according to claim 2, characterized in that, The receiving slot (100) includes a first receiving space (101) and a second receiving space (102) arranged from front to back. The blade holder (30) is disposed in the first receiving space (101). The mounting slot (300) opens toward the second receiving space (102). The second receiving space (102) can accommodate at least one spare blade (02). A third abutment (60) is provided on the rear cover plate (20). When the blade holder (30) is in the storage position and the working blade (01) is not installed on the blade holder (30), the third abutment (60) can abut the spare blade (02) and cause the foremost spare blade (02) to enter the mounting slot (300).

14. The tool holder assembly according to claim 13, characterized in that, The locking component (40) engages with the upper or lower side of the working blade (01). The blade holder (30) has a rear protrusion (31) at one end away from the end opening (200). The end of the working blade (01) away from the end opening (200) can engage with the rear protrusion (31) for a stop.

15. A cutting tool, comprising a shank assembly and a working blade (01) disposed within the shank assembly, characterized in that, The tool holder assembly is the tool holder assembly according to any one of claims 1 to 14.

Images