A tool holder and a tool therefor

Abstract

The application discloses a tool holder and a tool thereof. The tool holder comprises a tool shell, a clamping piece and a tool changing piece. The tool shell has a communicating accommodating cavity and a port. The port is arranged at the front end of the tool shell. The clamping piece is elastically deformed and installed in the accommodating cavity. An installation gap is formed between the clamping piece and the tool shell. A tool blade is inserted into the installation gap from the port. The tool changing piece is movably installed in the accommodating cavity and abuts against the clamping piece. When the tool changing piece moves to a locking position, the tool changing piece extrudes the clamping piece, so that the clamping piece is deformed towards the tool shell, the installation gap is reduced, and the tool blade is clamped between the clamping piece and the tool shell. When the tool changing piece moves to an unlocking position, the tool changing piece avoids the clamping piece, the clamping piece is deformed away from the tool shell, and the installation gap is enlarged.

Description

Technical Field

[0001] This application relates to the field of cutting tool technology, specifically, to a tool holder and the cutting tool thereof. Background Technology

[0002] In various cutting operations, cutting tools are consumables, and their blades gradually become ineffective due to wear, chipping, or contamination. However, many existing professional cutting tools, such as hacksaws, plaster saws, and woodworking saws, often have their blades and handles permanently fixed. Therefore, when the blade becomes dull or damaged, users cannot replace the blade individually and must discard the entire tool and purchase a new one. Furthermore, to adapt to different cutting tasks, users usually need to purchase, store, and carry multiple different types of cutting tools, which leads to increased expenses and inconvenience in storage and carrying.

[0003] Therefore, there is an urgent need for a knife with replaceable blades to meet users' comprehensive needs for economy, convenience and safety. Utility Model Content

[0004] One objective of this application is to provide a tool holder with a simple structure. By moving the tool changing component between the locked and unlocked positions, the installation gap between the clamping component and the tool housing is reduced or expanded, thereby enabling the installation and removal of the blade without the need for additional complex accessories, thus reducing production costs.

[0005] Another objective of this application is to provide a knife holder that abuts against the blade via a positioning post or passes through a positioning hole on the blade, which helps to prevent the blade from moving relative to the knife housing during use, thereby improving safety.

[0006] Another objective of this application is to provide a tool holder that provides a force to the tool changing member toward the locking position via a first reset member, so that the blade is reliably clamped between the clamping member and the tool housing, thereby improving the convenience of tool changing operation and enhancing safety.

[0007] Another object of this application is to provide a cutting tool having the aforementioned handle, which can be fitted with a variety of different blades, making the tool suitable for different cutting tasks and meeting the user's needs for economy and convenience.

[0008] Another objective of this application is to provide a cutting tool having the aforementioned handle, wherein the blade can be changed by pushing the blade changer, making the blade change operation simple and quick, and meeting the user's safety requirements.

[0009] To achieve at least one of the above objectives, the technical solution adopted in this application is as follows: a knife handle, comprising: a knife shell having a communicating receiving cavity and a port, the port being located at the front end of the knife shell; a clamping member elastically deformably mounted within the receiving cavity, forming an installation gap between the clamping member and the knife shell, allowing a blade to be inserted into the installation gap from the port; and a tool changing member movably mounted within the receiving cavity, abutting against the clamping member; when the tool changing member moves to a locked position, it compresses the clamping member, causing the clamping member to deform towards the knife shell, reducing the installation gap to clamp the blade between the clamping member and the knife shell; when the tool changing member moves to an unlocked position, it avoids the clamping member, allowing the clamping member to deform away from the knife shell, increasing the installation gap.

[0010] As a preferred embodiment, the clamping member is V-shaped and has an open opening facing the rear end of the blade housing; at least a portion of the tool changing member extends into the open opening to abut against the clamping member; when the tool changing member moves to the locking position, it expands the clamping member, thereby reducing the installation gap; when the tool changing member moves to the unlocking position, it avoids the clamping member, and the clamping member retracts, thereby expanding the installation gap.

[0011] As a preferred embodiment, the blade housing includes a fixing member having a mounting groove extending along a first direction, the mounting groove accommodating the clamping member; from the front end to the rear end of the fixing member, the dimension of the mounting groove gradually increases along a second direction, such that the groove wall is adapted to fit against the clamping member, and the mounting gap is formed between the fixing member and the clamping member; wherein, the first direction is parallel to the length direction of the blade handle, and the second direction is parallel to the thickness direction of the blade handle.

[0012] As a preferred embodiment, the clamping member includes a first clamping section and a second clamping section, which are connected by a bend. The first clamping section extends in a plane parallel to a first direction and a third direction, and the second clamping section is set at an angle to the first clamping section. From the front end to the rear end of the clamping member, the size of the opening gradually increases along the second direction, and the installation gap is formed between the first clamping section and the fixing member. The third direction is parallel to the width direction of the tool holder. The tool changing member includes a mating part. From the front end to the rear end of the mating part, the size of the mating part gradually increases along the second direction. When the tool changing member moves to the locking position, the upper surface of the mating part fits against the second clamping section, and the lower surface of the mating part fits against the first clamping section to open the clamping member.

[0013] As a preferred embodiment, the clamping member has a guide groove extending along a first direction, and the tool changing member includes a protrusion connected to the mating part and extending from the mating part into the guide groove. The protrusion can move along the guide groove, so that the clamping member moves between a locked position and an unlocked position along the first direction.

[0014] As a preferred embodiment, the tool holder further includes a first reset member connected between the tool changing member and the tool housing, the first reset member providing a force to the tool changing member to move toward the locking position.

[0015] As a preferred embodiment, the tool changing component further includes a guide rod connected to the mating part, the guide rod extending towards the rear end of the tool housing; the first reset component is a compression spring, the first reset component is sleeved on the guide rod, one end of the first reset component abuts against the tool changing component, and the other end of the first reset component abuts against the tool housing.

[0016] As a preferred embodiment, the blade housing has a through groove extending in a first direction, the through groove connecting the receiving cavity to the outside; the blade changing component also includes an operating part connected to the mating part, the operating part extending from the through groove to the outside of the blade housing, the operating part being able to move along the through groove.

[0017] As a preferred embodiment, the tool holder further includes a positioning post and a second reset member. The positioning post is installed in the receiving cavity and is adapted to move in a second direction. The second reset member is connected between the positioning post and the tool housing to provide a force to the positioning post to move toward the mounting gap, so that the positioning post abuts against the blade in the mounting gap or passes through the positioning hole on the blade.

[0018] To achieve at least one of the above objectives, the technical solution adopted in this application is: a cutting tool, comprising: a handle as described in any of the above descriptions; and a blade, wherein the blade is detachably mounted on the handle. Attached Figure Description

[0019] Figure 1 This is a perspective view of a cutting tool according to some embodiments of this application.

[0020] Figure 2 This is a perspective view of a knife handle according to some embodiments of this application.

[0021] Figure 3 The explosion of the knife handle according to some embodiments of this application.

[0022] Figure 4 This is a schematic diagram of the tool changer of a tool holder in the locked position according to some embodiments of this application.

[0023] Figure 5 This is a schematic diagram of the tool changer of a tool holder in the unlocked position according to some embodiments of this application.

[0024] Figure 6 This is a schematic diagram of the internal structure of a knife handle according to some embodiments of this application.

[0025] Figure 7 This is a perspective view of a fastener according to some embodiments of this application.

[0026] Figure 8 This is a perspective sectional view of a fastener according to some embodiments of this application.

[0027] Figure 9 This is a cross-sectional view of a clamping member according to some embodiments of this application.

[0028] Figure 10 This is a perspective view of a tool changer according to some embodiments of this application.

[0029] Figure 11 This is a cross-sectional view of a tool changer according to some embodiments of this application.

[0030] Figure 12 This is a perspective view of a blade according to some embodiments of this application.

[0031] Figure 13 This is a perspective view of a blade according to some other embodiments of this application.

[0032] Figure 14 This is a perspective view of a blade according to some other embodiments of this application.

[0033] In the diagram: 1. Handle; 10. Blade Sheath; 11. Outer Shell; 111. Fixing Rib; 112. Receiving Cavity; 113. Through Slot; 114. Guide Rail Rib; 115. Guide Rail Slot; 116. Upper Outer Shell; 117. Lower Outer Shell; 12. Fixing Component; 121. Port; 122. Mounting Slot; 123. Fixing Slot; 124. Magnet Slot; 125. Through Hole; 126. Clearance Slot; 13. Soft Pad; 14. Mounting Gap; 20. Clamping Component; 21. Opening; 22. First Clamping Section; 221. Serrated Structure; 23. Second Clamping Section; 231. Main Body; 2 32. Recessed portion; 233. Groove; 24. Guide groove; 30. Tool changer; 31. Mating part; 311. Upper surface; 312. Lower surface; 32. Protrusion; 321. Bevel; 33. Operating part; 331. Notch; 34. Reset part; 341. Receiving groove; 35. Guide rod; 36. Sliding part; 40. Positioning post; 41. First positioning post; 42. Second positioning post; 51. First reset part; 52. Second reset part; 60. Magnet; 2. Tool; 70. Blade; 71. Positioning hole; 72. Plaster saw; 73. Woodworking saw; 74. Hacksaw. Detailed Implementation

[0034] The present application will be further described below with reference to specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0035] In the description of this application, it should be noted that the directional terms such as "center", "lateral", "longitudinal", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", and "counterclockwise" indicate the orientation and positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and 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. They should not be construed as limiting the specific protection scope of this application.

[0036] It should be noted that the terms "first," "second," etc., in the specification and claims of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence.

[0037] A knife handle 1, such as Figures 1-11As shown, the device includes a blade housing 10, a clamping member 20, and a tool changing member 30. The blade housing 10 has a communicating receiving cavity 112 and a port 121, with the port 121 located at the front end of the blade housing 10. The clamping member 20 is elastically deformable and mounted within the receiving cavity 112, forming a mounting gap 14 between the clamping member 20 and the blade housing 10, allowing the blade 70 to be inserted into the mounting gap 14 from the port 121. The tool changing member 30 is movably mounted within the receiving cavity 112, and abuts against the clamping member 20. Specifically, when the tool changing member 30 moves to the locking position, as... Figure 4 As shown, the tool changer 30 presses against the clamping member 20, causing the clamping member 20 to deform towards the tool housing 10, reducing the installation gap 14, so as to clamp the blade 70 between the clamping member 20 and the tool housing 10; when the tool changer 30 moves to the unlocked position, as Figure 5 As shown, the tool changer 30 avoids the clamping member 20, allowing the clamping member 20 to deform in a direction away from the tool housing 10, thus widening the installation gap 14 and enabling the removal of the blade 70.

[0038] In other words, by pushing the tool changer 30 to the unlocked position, the blade 70 can be removed for replacement with a new blade 70 or a different type of blade 70. By pushing the tool changer 30 to the locked position, the blade 70 can be reliably clamped between the blade housing 10 and the clamping member 20, making the tool changing operation simple and quick, thus improving the efficiency of blade 70 replacement. Furthermore, the handle 1 can be combined with different types of blades 70 to form a tool 2 suitable for different cutting tasks, meeting the user's needs for economy and convenience. In addition, the user only needs to hold the handle 1 with one hand and push the tool changer 30, while the other hand can easily insert and remove the blade 70, making the tool changing operation safer and meeting the user's safety requirements.

[0039] It is worth mentioning that by moving the tool changer 30 between the locked position and the unlocked position, the installation gap 14 between the clamping member 20 and the tool housing 10 is reduced or expanded, thereby realizing the installation and removal of the blade 70. The tool holder 1 has a simple structure and does not require the addition of complex accessories, which helps to reduce the production cost of the tool holder 1.

[0040] In some embodiments, such as Figures 3-5 As shown, the clamping member 20 is V-shaped and has an opening 21 facing the rear end of the tool housing 10. At least a portion of the tool changing member 30 extends into the opening 21 to abut against the clamping member 20. When the tool changing member 30 moves to the locked position, it expands the clamping member 20, thereby reducing the installation gap 14. When the tool changing member 30 moves to the unlocked position, it avoids the clamping member 20, and the clamping member 20 retracts, thereby expanding the installation gap 14.

[0041] It should be understandable that when the tool changer 30 moves to the locking position, such as Figure 4 As shown, when the tool changer 30 moves into the opening 21 of the clamping member 20, the clamping member 20 is stretched open, and then the clamping member 20 elastically deforms towards the tool housing 10. The installation gap 14 between the clamping member 20 and the tool housing 10 decreases, and the clamping force on the blade 70 increases, so that it can be reliably clamped between the clamping member 20 and the tool housing 10. Furthermore, when the tool changer 30 moves towards the unlocking position, as... Figure 5 As shown, when the tool changer 30 moves outward from the opening 21 of the clamping member 20, the tool changer 30 avoids the clamping member 20, allowing the clamping member 20 to elastically return to its original position. This widens the mounting gap 14 between the clamping member 20 and the tool housing 10, reducing or eliminating the clamping force on the blade 70, making it easier for the user to remove the blade 70. It is worth noting that at least a portion of the tool changer 30 extends into the opening 21 of the clamping member 20, which also helps improve the reliability of the connection between the tool changer 30 and the clamping member 20.

[0042] In some embodiments, such as Figure 4 , Figure 5 and Figure 8 As shown, the blade housing 10 includes a fixing member 12, which has a mounting groove 122 extending along a first direction, and the mounting groove 122 accommodates the clamping member 20. From the front end to the rear end of the fixing member 12, the size of the mounting groove 122 gradually increases along a second direction, so that the groove wall of the mounting groove 122 is suitable for fitting with the clamping member 20. An installation gap 14 is formed between the fixing member 12 and the clamping member 20. The first direction is parallel to the length direction of the blade holder 1, and the second direction is parallel to the thickness direction of the blade holder 1.

[0043] It should be understood that the dimensions of the mounting groove 122 gradually increase along the second direction, allowing the groove wall of the mounting groove 122 to fit the "V"-shaped clamping member 20. Therefore, when the tool changer 30 moves to the locking position, the clamping member 20 can fit against the groove wall of the mounting groove 122. This includes the clamping member 20 directly fitting against the groove wall of the mounting groove 122, and also includes the clamping member 20, the blade 70, and the groove wall of the mounting groove 122 being stacked and fitted together. This increases the contact area between the clamping member 20 and the fixing member 12, as well as the contact area between the clamping member 20, the fixing member 12, and the blade 70, resulting in more uniform force distribution on the clamping member 20, the fixing member 12, and the blade 70, thus improving the reliability of the blade 70 being clamped in the tool holder 1.

[0044] In some embodiments, such as Figure 2 and Figure 6As shown, the blade housing 10 also includes an outer shell 11, with a receiving cavity 112 formed in the outer shell 11 to accommodate the fixing member 12 and the tool changing member 30. Furthermore, the outer wall of the fixing member 12 has a fixing groove 123, and the outer shell 11 has at least one fixing rib 111 extending into the fixing groove 123. Through the cooperation of the fixing rib 111 and the fixing groove 123, the fixing member 12 is connected to the outer shell 11, which helps prevent the fixing member 12 from moving relative to the outer shell 11. This improves the reliability of the connection between the fixing member 12 and the outer shell 11, and enhances the safety of the tool holder 1 during use.

[0045] It should be understood that by separating the outer shell 11 and the fixing member 12, the outer shell 11 and the fixing member 12 can be made of different materials. For example, the outer shell 11 can be made of plastic to facilitate injection molding and reduce the manufacturing cost of the tool holder 1; the fixing member 12 can be made of alloy to improve its structural strength and wear resistance. It is worth mentioning that the outer shell 11 and the fixing member 12 can also be integrated, and this application does not impose a specific limitation on this.

[0046] In some embodiments, such as Figure 2 As shown, the blade case 10 also includes a pad 13, which covers at least a portion of the outer surface of the outer casing 11 to improve the comfort of the handle 1 during use.

[0047] In some embodiments, such as Figures 3-5 As shown, the clamping member 20 includes a first clamping section 22 and a second clamping section 23, which are connected by a bend. The first clamping section 22 extends in a plane parallel to the first and third directions, and the second clamping section 23 is set at an angle to the first clamping section 22. Furthermore, from the front end to the rear end of the clamping member 20, the size of the opening 21 gradually increases along the second direction, meaning the clamping member 20 is shaped like a "∠". Further, a mounting gap 14 is formed between the first clamping section 22 and the fixing member 12, meaning the blade 70 can be clamped between the first clamping section 22 and the fixing member 12.

[0048] It should be understood that, since the first clamping segment 22 extends in a plane parallel to the first direction and the third direction, and the groove wall of the mounting groove 122 of the fixing member 12 is adapted to the clamping member 20, the groove wall opposite to the first clamping segment 22 also extends in a plane parallel to the first direction and the third direction. Thus, when the blade 70 is clamped between the first clamping segment 22 and the fixing member 12, the blade 70 is kept in a plane parallel to the first direction and the third direction, meaning the blade 70 and the handle 1 can be properly installed. This helps prevent the blade 70 from tilting relative to the handle 1, improving the user's comfort and safety when using the tool 2. The third direction is parallel to the width direction of the handle 1.

[0049] Furthermore, such as Figures 3-5 As shown, the tool changer 30 includes a mating part 31. From the front end to the rear end of the mating part 31, the size of the mating part 31 gradually increases along the second direction. When the tool changer 30 moves to the locking position, the upper surface 311 of the mating part 31 can fit into the second clamping section 23, and the lower surface 312 of the mating part 31 can fit into the first clamping section 22 to open the clamping member 20.

[0050] Specifically, when the tool changer 30 moves to the locking position, such as Figure 4 As shown, when the mating part 31 moves into the opening 21 of the clamping member 20, the clamping member 20 is opened by the mating part 31, thereby increasing the angle between the second clamping section 23 and the first clamping section 22, decreasing the installation gap 14 between the first clamping section 22 and the blade housing 10, and increasing the clamping force on the blade 70, so that it can be reliably clamped between the clamping member 20 and the blade housing 10. Furthermore, when the tool changing member 30 moves to the unlocking position, as... Figure 5 As shown, when the mating part 31 moves outward from the opening 21 of the clamping member 20, the tool changing member 30 avoids the clamping member 20, thereby allowing the clamping member 20 to elastically recover. The angle between the second clamping section 23 and the first clamping section 22 decreases, the installation gap 14 between the first clamping section 22 and the blade housing 10 increases, and the clamping force on the blade 70 decreases or disappears, making it easier for the user to pull out the blade 70.

[0051] It is worth mentioning that when the tool changer 30 moves to the locking position, the upper surface 311 of the mating part 31 comes into contact with the second clamping section 23, and the lower surface 312 of the mating part 31 overlaps with the first clamping section 22. This increases the contact area between the mating part 31 and the clamping member 20, making the force on the mating part 31 of the tool changer 30 and the clamping member 20 more uniform, and improving the reliability of the blade 70 being clamped in the tool holder 1.

[0052] In some embodiments, such as Figure 4 and Figure 5 As shown, the clamping member 20 has a guide groove 24 extending along a first direction; the tool changing member 30 includes a protrusion 32, which is connected to the mating part 31 and extends from the mating part 31 into the guide groove 24. The protrusion 32 can move along the guide groove 24, allowing the clamping member 20 to move between a locked position and an unlocked position along the first direction. It should be understood that the cooperation between the guide groove 24 and the protrusion 32 enables the tool changing member 30 to move smoothly relative to the clamping member 20 along the first direction, thereby improving stability. It is worth mentioning that the cooperation between the guide groove 24 and the protrusion 32 also helps to prevent the tool changing member 30 from separating from the clamping member 20 during movement, thereby improving the reliability of the connection between the tool changing member 30 and the clamping member 20.

[0053] In at least one embodiment, such as Figure 9 and Figure 10 As shown, the first clamping section 22 and the second clamping section 23 of the clamping member 20 are each provided with a guide groove 24. The upper surface 311 and the lower surface 312 of the mating part 31 of the tool changing member 30 are each provided with a protrusion 32. Each protrusion 32 extends into the guide groove 24 in a corresponding manner, which can improve the reliability of the connection and mating between the tool changing member 30 and the clamping member 20.

[0054] In at least one embodiment, such as Figure 9 As shown, the second clamping section 23 of the clamping member 20 includes a main body 231 and a recessed portion 232. The main body 231 is connected to the first clamping section 22 by a bend and is set at an angle to the first clamping section 22. The recessed portion 232 extends from the end of the main body 231 away from the first clamping section 22 along the second direction toward the first clamping section 22 to form a groove 233. Furthermore, a guide groove 24 is provided on the recessed portion 232. The protrusion 32 connected to the upper surface 311 of the mating part 31 passes through the guide groove 24 on the recessed portion 232 to extend into the groove 233. This makes the structure between the clamping member 20 and the tool changing member 30 more compact, thereby reducing the size of the tool holder 1 along the second direction.

[0055] In at least one embodiment, such as Figure 10 As shown, the protrusion 32 has an inclined surface 321 that is inclined toward the front end of the mating part 31, so that the size of the protrusion 32 gradually increases along the second direction from the front end to the rear end of the protrusion 32. This makes it easier to install the mating part 31 of the tool changer 30 into the opening of the clamping member 20, and to make it easier to snap the protrusion 32 into the guide groove 24, thereby reducing the assembly difficulty of the tool holder 1 and improving the assembly efficiency of the tool holder 1.

[0056] In some embodiments, such as Figures 3-6 As shown, the tool holder 1 also includes a first reset member 51, which is connected between the tool changing member 30 and the tool housing 10. The first reset member 51 can provide a force to the tool changing member 30 to move toward the locking position, thereby allowing the mating part 31 of the tool changing member 30 to open the clamping member 20, reducing the installation gap 14 between the first clamping section 22 and the fixing member 12, and improving the reliability of the tool holder 1 in clamping the blade 70.

[0057] It is understandable that when the user needs to change the blade 70, the force of the first reset member 51 needs to be overcome to move the tool changer 30 from the locked position to the unlocked position. After changing the blade 70, even if the user forgets to return the tool changer 30 to the locked position, the force of the first reset member 51 can automatically return the tool changer 30 to the locked position, thereby ensuring that the tool holder 1 reliably holds the blade 70 and improving the safety of the tool 2.

[0058] In some embodiments, such as Figures 3-6As shown, the tool changer 30 also includes a guide rod 35 connected to the mating part 31, extending towards the rear end of the tool housing 10; the first reset member 51 is a compression spring, sleeved on the guide rod 35, with one end of the first reset member 51 abutting against the tool changer 30 and the other end abutting against the tool housing 10. It should be understood that the guide rod 35 provides support and guidance for the first reset member 51, which helps prevent overall bending and torsion of the first reset member 51 when compressed, thereby ensuring that the elastic force of the first reset member 51 acts stably and reliably on the tool changer 30.

[0059] In some embodiments, such as Figure 4 and Figure 5 As shown, the tool changer 30 also includes a reset part 34 connected to the mating part 31. The reset part 34 has a receiving groove 341 with an opening facing the rear end of the tool housing 10. The guide rod 35 is connected to the bottom of the receiving groove 341. When the compression spring is sleeved on the guide rod 35, at least a portion of the compression spring is accommodated in the receiving groove 341, thereby improving the connection reliability between the compression spring and the tool changer 30. In addition, the receiving groove 341 can also guide the compression spring, making the force of the compression spring parallel to the moving direction of the tool changer 30, reducing the components in other directions. This helps to ensure that the force of the compression spring is fully used for the movement of the tool changer 30, and reduces the friction force on the tool changer 30, making the movement of the tool changer 30 more stable and smooth.

[0060] In some embodiments, such as Figure 3 As shown, the tool housing 10 has a through groove 113 extending along a first direction, which connects the receiving cavity 112 to the outside. The through groove 113 can be formed in the outer housing 11. The tool changing component 30 also includes an operating part 33 connected to the mating part 31. The operating part 33 extends from the through groove 113 to the outside of the tool housing 10 and can move along the through groove 113. The operating part 33 can be located between the mating part 31 and the reset part 34. It should be understood that the user can push the tool changing component 30 through the operating part 33 exposed on the tool housing 10, causing the tool changing component 30 to move between a locked position and an unlocked position along the first direction.

[0061] In at least one embodiment, such as Figure 3 As shown, the operating part 33 has a notch 331 with an opening facing the front end of the handle 1. The notch 331 can accommodate the user's fingers, which helps to prevent the user's fingers from slipping off the operating part 33 when pushing the tool changer 30, thereby improving the user experience.

[0062] In some embodiments, such as Figure 6As shown, the tool housing 10 is provided with a guide groove 115 extending along the first direction; further, the tool changing member 30 also includes a sliding part 36, which protrudes from the operation part 33 and / or the reset part 34 on opposite sides along the third direction. The sliding part 36 extends into the guide groove 115 and can move along the guide groove 115. This can improve the reliability of the connection and cooperation between the tool changing member 30 and the tool housing 10, so that the tool changing member 30 can move stably relative to the tool housing 10 along the first direction.

[0063] In at least one embodiment, such as Figure 3 and Figure 6 As shown, the outer shell 11 of the blade housing 10 includes an upper outer shell 116 and a lower outer shell 117. Furthermore, the upper outer shell 116 and the lower outer shell 117 are each provided with guide rail ribs 114, and guide rail grooves 115 are formed between the guide rail ribs 114 of the upper outer shell 116 and the lower outer shell 117. This helps avoid the need for additional machining to form the guide rail grooves 115, thereby reducing the machining difficulty of the blade housing 10 and lowering its manufacturing cost.

[0064] In at least one embodiment, the extension direction of the guide groove 115 is parallel to the first direction, thereby allowing the tool changer 30 to slide parallel to the first direction. In at least one embodiment, the extension direction of the guide groove 115 is set at an angle to the first direction, so that the tool changer 30 moves from the unlocked position to the locked position along the first direction while simultaneously moving towards the first clamping section 22 along the second direction; thus, the mating part 31 can press the first clamping section 22 against the blade 70 while opening the clamping member 20, so that the blade 70 is more reliably clamped between the first clamping section 22 and the fixing member 12.

[0065] In some embodiments, such as Figure 9 As shown, the clamping member 20 also includes a serrated structure 221, which is disposed on the side surface of the first clamping section 22 facing the blade 70, thereby increasing the clamping force between the first clamping section 22 and the blade 70, which helps to prevent the blade 70 from sliding relative to the handle 1 and improves the safety of the tool 2 during use.

[0066] In some embodiments, such as Figures 3-5As shown, the tool holder 1 also includes a magnet 60. A magnet groove 124 is provided on the side of the fixing member 12 opposite to the second clamping section 23 of the clamping member 20. The magnet groove 124 can accommodate the magnet 60, so that the magnet 60 and the second clamping section 23 are opposite to each other. It should be understood that the clamping member 20 can be made of a magnetically attractive metal material. This improves the structural strength of the clamping member 20 and gives it a longer service life, while allowing it to undergo elastic deformation. In addition, the attraction between the magnet 60 and the clamping member 20 keeps the clamping member 20 within the mounting groove 122 of the fixing member 12, which helps to prevent the clamping member 20 from moving relative to the fixing member 12 in the first direction.

[0067] It is worth mentioning that, through the magnetic attraction between the magnet 60 and the second clamping section 23, the second clamping section 23 and the groove wall of the mounting groove 122 of the fixing member 12 can fit together. As a result, when the mating part 31 of the tool changing member 30 avoids the clamping member 20 and the included angle between the first clamping section 22 and the second clamp decreases, the mounting gap 14 between the first clamping section 22 and the fixing member 12 can be expanded.

[0068] In some embodiments, such as Figures 3-5 As shown, the tool holder 1 also includes a positioning post 40 and a second reset member 52. The positioning post 40 is installed in the receiving cavity 112 and is adapted to move in a second direction. The second reset member 52 is connected between the positioning post 40 and the tool housing 10, so as to provide a force to the positioning post 40 to move toward the mounting gap 14, so that the positioning post 40 and the blade 70 in the mounting gap 14 abut against each other, or can pass through the positioning hole 71 on the blade 70, thereby improving the reliability of the connection and fixation between the blade 70 and the tool holder 1, and improving the safety of the tool 2 during use.

[0069] It should be understood that the length of the positioning post 40 extending into the installation gap 14 is limited. When the tool changer 30 moves to the locking position, the first clamping section 22 of the clamping member 20 is pressed against the blade 70 by the mating part 31 of the tool changer 30. The positioning post 40 can pass through the positioning hole 71 of the blade 70 and abut against the first clamping section 22. When the tool changer 30 moves to the unlocking position, the mating part 31 of the tool changer 30 avoids the first clamping section 22. The blade 70 can move in the second direction to push open the first clamping section 22, so that a gap is created between the first clamping section 22 and the positioning post 40, and the blade 70 can be removed.

[0070] In at least one embodiment, such as Figure 7 and Figure 8As shown, the positioning post 40 includes a first positioning post 41 and a second positioning post 42. The first positioning post 41 is located at the midpoint of the fixing member 12 along a third direction, passing through the positioning hole 71 on the blade 70, thereby improving the connection reliability between the blade 70 and the handle 1. The second positioning post 42 is located on the side of the fixing member 12 near the blade back along a third direction, abutting against the blade 70, thus improving the connection reliability between the blade 70 and the handle 1. Furthermore, a through hole 125 extending along a second direction is provided on the side of the fixing member 12 opposite to the first clamping section 22 of the clamping member 20, allowing the first positioning post 41 and the second positioning post 42 to move along the through hole 125 respectively. A second elastic element is installed between the lower housing 117 and the fixing member 12, with one end of the second reset element 52 abutting against the positioning post 40 and the other end abutting against the lower housing 117, providing a force to the positioning post 40 to move towards the blade 70.

[0071] In some embodiments, such as Figure 7 As shown, the fixing member 12 also has a relief groove 126 communicating with the mounting groove 122. The relief groove 126 is located on the side of the fixing member 12 that is close to the blade along a third direction upward, and the relief groove 126 extends along the first direction. It should be understood that when removing or installing the blade 70, the fixing member 12 can avoid the blade through the relief groove 126, which helps to prevent the blade from scratching or damaging the fixing member 12.

[0072] A type of cutting tool 2, such as Figure 1 As shown, it includes: the aforementioned knife holder 1, and a blade 70. The blade 70 is detachably mounted to the knife holder 1. It is worth mentioning that, as... Figures 12-14 As shown, the blade 70 can be implemented as a plaster saw 72 or a woodworking saw 73. Furthermore, the plaster saw 72 or the woodworking saw 73 can be provided with a positioning hole 71, which is used to engage with the positioning post 40 on the handle 1. The blade 70 can also be implemented as a hacksaw 74. Furthermore, when the hacksaw 74 is installed on the handle 1, at least a portion of the hacksaw 74 is received in the receiving cavity 112 of the handle 1, and the fixing member 12 can pass through the relief groove 126 to avoid the saw teeth of the hacksaw 74, which helps to prevent the hacksaw 74 from scratching the fixing member 12.

[0073] The basic principles, main features, and advantages of this application have been described above. Those skilled in the art should understand that this application is not limited to the above embodiments. The embodiments and descriptions in the specification are merely the principles of this application. Various changes and modifications can be made to this application without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection claimed by this application is defined by the appended claims and their equivalents.

Claims

1. A knife handle, characterized in that, include: A blade housing having a communicating receiving cavity and a port, the port being located at the front end of the blade housing; A clamping member is elastically deformable and mounted within the receiving cavity, with an installation gap formed between the clamping member and the blade housing, allowing the blade to be inserted into the installation gap from the port; A tool changer is movably mounted within the receiving cavity and abuts against the clamping member. When the tool changer moves to the locking position, it presses against the clamping member, causing the clamping member to deform towards the blade housing, thus reducing the installation gap and clamping the blade between the clamping member and the blade housing. When the tool changer moves to the unlocking position, it avoids the clamping member, allowing the clamping member to deform away from the blade housing, thus widening the installation gap.

2. The knife handle according to claim 1, characterized in that, The clamping member is V-shaped and has an opening facing the rear end of the blade housing; at least a portion of the tool changing member extends into the opening to abut against the clamping member; When the tool changer moves to the locking position, it expands the clamping member, thereby reducing the installation gap; when the tool changer moves to the unlocking position, it avoids the clamping member, and the clamping member retracts, thereby expanding the installation gap.

3. The knife handle according to claim 2, characterized in that, The blade housing includes a fixing member having a mounting groove extending along a first direction, the mounting groove accommodating the clamping member; from the front end to the rear end of the fixing member, the size of the mounting groove gradually increases along a second direction, such that the groove wall is adapted to fit against the clamping member, and a mounting gap is formed between the fixing member and the clamping member; wherein, the first direction is parallel to the length direction of the blade handle, and the second direction is parallel to the thickness direction of the blade handle.

4. The knife handle according to claim 3, characterized in that, The clamping member includes a first clamping section and a second clamping section, which are connected by a bend. The first clamping section extends in a plane parallel to a first direction and a third direction. The second clamping section is set at an angle to the first clamping section. From the front end to the rear end of the clamping member, the size of the opening gradually increases along the second direction. The installation gap is formed between the first clamping section and the fixing member. The third direction is parallel to the width direction of the tool holder. The tool changer includes a mating part. From the front end to the rear end of the mating part, the size of the mating part gradually increases along the second direction. When the tool changer moves to the locking position, the upper surface of the mating part is able to fit against the second clamping section, and the lower surface of the mating part is able to fit against the first clamping section to open the clamping member.

5. The knife handle according to claim 4, characterized in that, The clamping member has a guide groove extending along a first direction. The tool changing member includes a protrusion. The protrusion is connected to the mating part and extends from the mating part into the guide groove. The protrusion can move along the guide groove, so that the clamping member moves between a locked position and an unlocked position along the first direction.

6. The knife handle according to claim 4, characterized in that, The tool holder also includes a first reset member, which is connected between the tool changing member and the tool housing, and the first reset member can provide a force to the tool changing member to move toward the locking position.

7. The knife handle according to claim 6, characterized in that, The tool changing component also includes a guide rod connected to the mating part, the guide rod extending towards the rear end of the tool housing; the first reset component is a compression spring, the first reset component is sleeved on the guide rod, one end of the first reset component abuts against the tool changing component, and the other end of the first reset component abuts against the tool housing.

8. The knife holder according to any one of claims 4-7, characterized in that, The blade housing has a through groove extending in a first direction, which connects the receiving cavity to the outside. The tool changing component also includes an operating part connected to the mating part. The operating part extends from the through groove to the outside of the blade housing and can move along the through groove.

9. The knife handle according to any one of claims 1-7, characterized in that, The tool holder also includes a positioning post and a second reset member. The positioning post is installed in the receiving cavity and is adapted to move in a second direction. The second reset member is connected between the positioning post and the tool housing to provide a force to the positioning post to move toward the mounting gap, so that the positioning post abuts against the blade in the mounting gap or passes through the positioning hole on the blade.

10. A cutting tool, characterized in that, include: The knife holder as described in any one of claims 1-9; A blade, which is detachably mounted to the handle.

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