Tool bit assembly, shaver and tool changing box

Abstract

The invention provides a tool bit assembly, a shaver and a tool changing box, and the tool bit assembly comprises a first tool bit provided with a first clamping part; the second tool bit is provided with a second clamping part, and a containing space used for containing a blade is formed between the first clamping part and the second clamping part; in the first direction, the first tool bit and the second tool bit can relatively move, the first tool bit is provided with a first position and a second position relative to the second tool bit, and the first tool bit is switched between the first position and the second position by moving relative to the second tool bit; at the first position of the first tool bit, the first clamping part and the second clamping part are close to each other so as to clamp the blade in the accommodating space; and at the second position of the first tool bit, the first clamping part and the second clamping part are far away from each other, so that the blade is separated from or enters the accommodating space. According to the tool bit assembly, the first tool bit and the second tool bit are arranged, when the blade is replaced, the blade can be separated and fixed only by applying acting force, and the tool replacement efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of personal care products, in particular to a cutter head assembly, a razor and a cutter replacement box. Background Art

[0002] The blade assembly in traditional razors typically secures the blades with a fixed clamping structure. This design makes the blades susceptible to rust or wear after prolonged use, necessitating replacement of new blades to maintain a good shave. However, existing blade assembly designs often utilize an integrated design, making blade replacement a complex and cumbersome process that wastes time and can increase user costs. Furthermore, when replacing blades with traditional blade assembly, it is often difficult to precisely align the blades with the assembly, which affects shaving comfort and effectiveness.

[0003] Therefore, there is an urgent need for a cutter head assembly, a razor and a blade replacement box that can facilitate user replacement of blades, is easy to operate and has a reliable structure. Summary of the Invention

[0004] The present invention aims to at least solve the problem of complicated and tedious blade replacement process in the prior art, and proposes a blade head assembly, a razor and a blade replacement box.

[0005] In order to achieve the purpose of the present invention, a cutter head assembly is provided, including: a first cutter head, provided with a first clamping part; a second cutter head, provided with a second clamping part, and an accommodating space for accommodating a blade is formed between the first clamping part and the second clamping part; in a first direction, the first cutter head and the second cutter head are relatively movable, the first cutter head has a first position and a second position relative to the second cutter head, and the first cutter head switches between the first position and the second position by moving relative to the second cutter head; in the first position of the first cutter head, the first clamping part and the second clamping part are close to each other to clamp the blade in the accommodating space; in the second position of the first cutter head, the first clamping part and the second clamping part are away from each other to allow the blade to detach from or enter the accommodating space.

[0006] In some embodiments, the cutter head assembly further includes: a reset elastic member connected between the first cutter head and the second cutter head, the elastic member being used to reset the first cutter head to the first position.

[0007] In some embodiments, the first cutter head includes: a top wall, a bottom wall and a connecting wall, the top wall, the connecting wall and the bottom wall are connected in sequence to form a guide groove, and one end of the second cutter head in the first direction is located inside the first cutter head; in the first position of the first cutter head, the end of the second cutter head located inside the second cutter head is away from the connecting wall; in the second position of the first cutter head, the end of the second cutter head located inside the second cutter head is close to the connecting wall.

[0008] In some embodiments, a first protrusion and a first inner surface extending to the first protrusion are provided on the side of the top wall facing the second cutting head. The first protrusion is located at an end of the top wall away from the connecting wall, and the first protrusion and the first inner surface form the first clamping portion.

[0009] In some embodiments, the second clamping portion is a mounting groove for accommodating the blade, which is arranged on the side of the second cutting head facing the top wall, and the mounting groove has a first groove wall close to the connecting wall and a second groove wall away from the connecting wall in the first direction; in the first position of the first cutting head, the first protrusion is close to the first groove wall, and the first inner surface is close to the bottom of the mounting groove; in the second position of the first cutting head, the first protrusion is away from the first groove wall, and the first inner surface is away from the bottom of the mounting groove.

[0010] In some embodiments, a limiting groove is provided on the side of the second cutting head facing the bottom wall, and a second protrusion is provided on the bottom wall to cooperate with the limiting groove, and the second protrusion is used to limit the movement of the first cutting head between the first position and the second position.

[0011] In some embodiments, one end of the reset elastic member is connected to the second blade head, and the second end of the reset elastic member abuts against the inner surface of the connecting wall.

[0012] In some embodiments, the first clamping portion is a mounting groove provided on the side of the top wall facing the second cutting head, and a third protrusion and a clamping surface are provided on the side of the second cutting head facing the top wall, the clamping surface is located between the third protrusion and one end of the second cutting head facing the connecting wall, and the third protrusion and the clamping surface form the second clamping portion; in the first position of the first cutting head, the third protrusion is close to the connecting wall, and the bottom of the mounting groove is close to the clamping surface; in the second position of the first cutting head, the third protrusion is away from the connecting wall, and the bottom of the mounting groove is away from the clamping surface.

[0013] In some embodiments, the reset elastic member is movably provided on the connecting wall, one end of the reset elastic member located inside the connecting wall is connected to the second blade head, and one end of the reset elastic member located outside the connecting wall abuts against the connecting wall.

[0014] According to a second aspect of the present invention, a shaver is disclosed, comprising: the above-mentioned cutter head assembly and a handle.

[0015] According to a third aspect of the present invention, a blade changing box is also disclosed for replacing the blades of the above-mentioned razor, the blade changing box comprising: a box body, provided with a snap-fitting groove for snap-fitting with the cutter head assembly; a blade changing assembly, arranged on the box body, the blade changing assembly being used to transport a new blade into the accommodating space and push the old blade out of the accommodating space after the cutter head assembly is snap-fitted with the snap-fitting groove.

[0016] In some embodiments, the snap-in groove is provided with a first abutment wall and a second abutment wall arranged opposite to each other, the first abutment wall is used to abut and cooperate with the first cutting head, and the second abutment wall is used to abut and cooperate with the second cutting head. After the cutting head assembly is snap-fitted with the snap-in groove, the first cutting head moves to the second position.

[0017] In some embodiments, a new blade cavity and an old blade cavity are provided on the box body, and the new blade cavity and the old blade cavity are spaced apart along the length direction of the box body. The snap-fit groove is located between the new blade cavity and the old blade cavity, and the new blade cavity and the old blade cavity are respectively connected to the snap-fit groove.

[0018] In some embodiments, the snap-in slot is provided with a blade inlet and a blade outlet at both ends of the box body in the length direction, the blade inlet is connected to the new blade cavity, and the blade outlet is connected to the old blade cavity. After the cutter head assembly is snap-fitted with the snap-in slot, the blade inlet and the blade outlet are respectively located at both ends of the accommodating space.

[0019] In some embodiments, the tool changing assembly includes: a new blade box, which is arranged in the new blade cavity, a blade opening corresponding to the blade inlet is provided at one end of the new blade box, and a slide groove is provided on the top of the new blade box; a support table, which is arranged in the new blade box, and a replacement blade is formed between the support table and the top of the new blade box; a slider, which is movably arranged in the slide groove, and the bottom of the slider is used to abut against the replacement blade to drive the replacement blade to move.

[0020] The blade assembly of the present invention utilizes a first blade and a second blade that can move relative to each other. This allows the user to detach and secure the blades with minimal force during blade replacement, thereby improving blade-changing efficiency and saving time. Furthermore, when the first blade is in the second position, the first and second clamping portions move away from each other, effectively preventing the risk of accidental cuts from direct contact with fingers during installation or removal. This design not only enhances the user experience but also increases safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a structural diagram of a cutter head assembly according to a first embodiment of the present invention;

[0022] Figure 2 This is a structural schematic diagram of the first cutting head of the cutting head assembly in the first position according to the first embodiment of the present invention;

[0023] Figure 3 This is a structural schematic diagram of the second cutting head of the cutting head assembly according to the first embodiment of the present invention in the first position;

[0024] Figure 4 This is a structural diagram of a cutter head assembly according to a second embodiment of the present invention;

[0025] Figure 5 This is a structural schematic diagram of the first cutting head of the cutting head assembly of the second embodiment of the present invention in the first position;

[0026] Figure 6 This is a structural schematic diagram of the second cutting head of the cutting head assembly according to the second embodiment of the present invention in the first position;

[0027] Figure 7 A schematic structural diagram of a tool changing box according to an embodiment of the present invention;

[0028] Figure 8 Schematic diagram of the tool head assembly and tool changing box of the tool changing box according to an embodiment of the present invention;

[0029] Figure 9 A schematic diagram of the engagement between the tool head assembly of the tool changing box and the tool changing box according to another embodiment of the present invention;

[0030] Figure 10 A schematic diagram of a tool head assembly of a tool changing box disengaged from the tool changing box according to another embodiment of the present invention;

[0031] Figure 11 A schematic diagram of the tool head assembly of a tool changing box and the tool changing box in accordance with another embodiment of the present invention;

[0032] List of reference numerals:

[0033] 10. First cutting head; 11. First clamping portion; 111. First protrusion; 112. First inner surface; 12. Top wall; 13. Bottom wall; 131. Second protrusion; 14. Connecting wall; 20. Second cutting head; 21. Second clamping portion; 211. Third protrusion; 212. Clamping surface; 22. Limiting groove; 30. Resetting elastic member; 40. Tool changing box; 41. Box body; 411. Snap-fit groove; 412. New blade cavity; 413. Old blade cavity; 414. Blade inlet; 415. Blade outlet; 42. Tool changing assembly; 421. New blade box; 4211. Slide groove; 423. Support platform; 424. Slider; 43. Press plate; 50. Blade; 51. Blade body; 52. Fitting portion. DETAILED DESCRIPTION

[0034] In order to enable those skilled in the art to better understand the technical solution of the present invention, the cutter head assembly, shaver and cutter replacement box provided by the present invention are described in detail below with reference to the accompanying drawings.

[0035] like Figures 1 to 6 As shown, the present invention discloses a cutter head assembly, comprising: a first cutter head 10 and a second cutter head 20. The first cutter head 10 is provided with a first clamping portion 11; the second cutter head 20 is provided with a second clamping portion 21, and an accommodating space for accommodating a blade 50 is formed between the first clamping portion 11 and the second clamping portion 21; in a first direction, the first cutter head 10 and the second cutter head 20 are relatively movable, and the first cutter head 10 has a first position and a second position relative to the second cutter head 20, and the first cutter head 10 switches between the first position and the second position by moving relative to the second cutter head 20. In the first position of the first cutter head 10, the first clamping portion 11 and the second clamping portion 21 are close to each other to clamp the blade 50 in the accommodating space; in the second position of the first cutter head 10, the first clamping portion 11 and the second clamping portion 21 are away from each other to allow the blade 50 to escape from or enter the accommodating space.

[0036] When the blade 50 needs to be replaced, the first cutting head 10 is moved to the second position so that the first clamping portion 11 and the second clamping portion 21 are separated from each other, thereby allowing the old blade 50 to be removed from the accommodation space and the new blade 50 to be easily placed into the accommodation space. After the new blade 50 is placed, the first cutting head 10 is moved to the first position so that the first clamping portion 11 and the second clamping portion 21 clamp the new blade 50, thereby securing the new blade 50.

[0037] The blade assembly of the present invention utilizes a first blade head 10 and a second blade head 20 that can move relative to each other. This allows the user to detach and secure the blade 50 with minimal force during blade replacement, thereby improving blade changing efficiency and reducing operation time. Furthermore, when the first blade head 10 is in the second position, the first clamping portion 11 and the second clamping portion 21 are spaced apart from each other, effectively preventing the risk of accidental cuts from direct contact with fingers during installation or removal. This design not only enhances the user experience but also increases safety.

[0038] In some embodiments, the cutter head assembly further includes a resilient member 30 connected between the first cutter head 10 and the second cutter head 20. The resilient member 30 is configured to reposition the first cutter head 10 to the first position. During use, under the action of an external force, the first cutter head 10 and the second cutter head 20 overcome the elastic force of the resilient member 30 and move to the second position. After the external force disappears, the resilient force of the resilient member 30 returns the first cutter head 10 to the first position, thereby maintaining the first clamping portion 11 and the second clamping portion 21 in a state of clamping the blade 50, effectively preventing the blade 50 from disengaging and improving safety and reliability.

[0039] In some embodiments, the first cutting head 10 includes: a top wall 12, a bottom wall 13 and a connecting wall 14, the top wall 12, the connecting wall 14 and the bottom wall 13 are connected in sequence to form a guide groove, and one end of the second cutting head 20 in the first direction is located inside the first cutting head 10; in the first position of the first cutting head 10, the end of the second cutting head 20 located inside the second cutting head 20 is away from the connecting wall 14; in the second position of the first cutting head 10, the end of the second cutting head 20 located inside the second cutting head 20 is close to the connecting wall 14.

[0040] The cutter head assembly of the present invention will be further described below with reference to specific embodiments. Figures 1 to 3 In one embodiment shown, a first protrusion 111 and a first inner surface 112 extending to the first protrusion 111 are provided on the side of the top wall 12 facing the second cutting head 20. The first protrusion 111 is located at an end of the top wall 12 away from the connecting wall 14. The first protrusion 111 and the first inner surface 112 form a first clamping portion 11.

[0041] The second clamping portion 21 is a mounting groove for accommodating the blade 50 , which is provided on a side of the second cutting head 20 facing the top wall 12 . The mounting groove has a first groove wall close to the connecting wall 14 and a second groove wall away from the connecting wall 14 in a first direction.

[0042] like Figure 2 As shown, in the first position of the first cutting head 10, the first protrusion 111 is close to the first groove wall, and the first inner surface 112 is close to the groove bottom of the mounting groove; Figure 3As shown, in the second position of the first cutting head 10 , the first protrusion 111 is away from the first groove wall, and the first inner surface 112 is away from the groove bottom of the mounting groove.

[0043] A limiting groove 22 is provided on the side of the second cutting head 20 facing the bottom wall 13 . A second protrusion 131 is provided on the bottom wall 13 to cooperate with the limiting groove 22 . The first protrusion 111 is used to limit the movement of the first cutting head 10 between the first position and the second position.

[0044] One end of the resetting elastic member 30 is connected to the second cutting head 20 , and a second end of the resetting elastic member 30 abuts against the inner surface of the connecting wall 14 .

[0045] When the blade 50 needs to be replaced, the first blade head 10 and the second blade head 20 are pressed together in the first direction, such as Figure 3 As shown, the first cutting head 10 is moved to the second position. At this time, since the first protrusion 111 is away from the first groove wall and the first inner surface 112 is away from the groove bottom of the installation groove, the old blade 50 is no longer clamped. A slight tilt can make the old blade 50 slide out of the accommodation space. Alternatively, a new blade 50 can be directly placed in the accommodation space and the old blade 50 can be pushed out by the new blade 50. When the new blade 50 is completely placed in the accommodation space, the first cutting head 10 and the second cutting head 20 are released. Under the action of the reset elastic member 30, the first cutting head 10 and the second cutting head 20 are reset. Figure 2 As shown, it is reset to the first position so that the first protrusion 111 is close to the first groove wall and the first inner surface 112 is close to the groove bottom of the installation groove, thereby clamping and fixing the new blade 50.

[0046] In this way, the blade 50 can be replaced by simply pinching the first blade head 10 and the second blade head 20, which is convenient and quick. Moreover, the blade 50 can be detached without touching the old blade 50 with hands, reducing the risk of being scratched by the blade 50.

[0047] exist Figures 4 to 6 In the second embodiment shown, a cutter head assembly is also disclosed, and its structure is basically the same as that of the first embodiment. The difference is that in this second embodiment, the first clamping portion 11 is a mounting groove provided on the side of the top wall 12 facing the second cutter head 20, and the second cutter head 20 is provided with a third protrusion 211 and a clamping surface 212 on the side facing the top wall 12. The clamping surface 212 is located at one end of the third protrusion 211 and the second cutter head 20 facing the connecting wall 14, and the third protrusion 211 and the clamping surface 212 form a second clamping portion 21.

[0048] like Figure 5 As shown, in the first position of the first cutting head 10, the third protrusion 211 is close to the connecting wall 14, and the bottom of the mounting groove is close to the clamping surface 212; Figure 6As shown, in the second position of the first cutting head 10 , the third protrusion 211 is away from the connecting wall 14 , and the bottom of the mounting groove is away from the clamping surface 212 .

[0049] The reset elastic member 30 is movably provided on the connecting wall 14 . One end of the reset elastic member 30 located inside the connecting wall 14 is connected to the second cutter head 20 , and one end of the reset elastic member 30 located outside the connecting wall 14 abuts against the connecting wall 14 .

[0050] When the blade 50 needs to be replaced, the reset elastic member 30 is pressed along the first direction, and the first cutting head 10 and the second cutting head 20 are driven away from each other by the reset elastic member 30. Figure 6 As shown, the first blade head 10 is moved to the second position. At this time, since the third protrusion 211 is away from the connecting wall 14 and the bottom of the mounting groove is away from the clamping surface 212, the old blade 50 is no longer clamped. A slight tilt can make the old blade 50 slide out of the accommodation space. Alternatively, a new blade 50 can be directly placed in the accommodation space and the old blade 50 can be pushed out by the new blade 50. When the new blade 50 is completely placed in the accommodation space, the reset elastic member 30 is released. Driven by the reset elastic member 30, as shown in FIG. Figure 5 As shown, the first cutting head 10 is reset to the first position, so that the third protrusion 211 is close to the connecting wall 14 and the bottom of the mounting groove is close to the clamping surface 212, thereby clamping and fixing the new blade 50.

[0051] In this way, the blade 50 can be replaced by simply pressing the reset elastic member 30, which is convenient and quick. Moreover, the blade 50 can be detached without touching the old blade 50 with hands, reducing the risk of being scratched by the blade 50.

[0052] It should also be noted that, in this embodiment, the blade 50 includes a blade body 51 and a mating portion 52. The blade body 51 is connected to the mating portion 52, and the thickness of the mating portion 52 is greater than that of the blade body 51 to facilitate mating with the first and second cutting heads 10, 20. In other words, when the blade 50 is assembled and clamped in the accommodation space between the first and second cutting heads 10, 20, the first and second cutting heads 10, 20 are secured to the mating portion 52, while the blade body 51 extends out of the accommodation space through the gap between the first and second cutting heads 10, 20, exposing the cutting edge of the blade body 51. This exposed cutting edge of the blade body 51 allows shaving.

[0053] The present invention also discloses a razor, comprising: the above-mentioned cutter head assembly and a cutter handle, wherein the cutter head assembly and the cutter handle are connected. Figures 1 to 3 In the embodiment shown in FIG. 1 , the handle is connected to the second cutting head 20, and Figures 4 to 6 In the second embodiment shown, the handle is connected to the first cutting head 10 .

[0054] like Figures 7 to 11 As shown, the present invention further discloses a blade changing box 40, which is used in conjunction with the above-mentioned razor to replace the blades 50 of the above-mentioned razor. The blade changing box 40 includes a box body 41 and a blade changing assembly 42. The box body 41 is provided with a snap-fitting groove 411, which is configured to snap-fit with the above-mentioned cutter head assembly. The blade changing assembly 42 is disposed on the box body 41 and is configured to transport a new blade 50 into the storage space and push the old blade 50 out of the storage space after the cutter head assembly snaps into the snap-fitting groove 411. By setting up the tool changing box 40, when in use, the cutter head assembly can be engaged with the engaging groove 411, and the tool changing assembly 42 can transport the new blade 50 into the accommodating space and push the old blade 50 out of the accommodating space, so that the new blade 50 can be replaced by operating the tool changing box 40, and the old blade 50 can also be recovered through the tool changing box 40, thereby reducing the risk of the blade 50 scratching the hand during the replacement of the old and new blades 50 and improving the safety of replacing the blade 50.

[0055] The snap-fitting groove 411 is provided with a first abutting wall 411a and a second abutting wall 411b which are arranged opposite to each other. The first abutting wall 411a is used to abut and cooperate with the first cutting head 10, and the second abutting wall 411b is used to abut and cooperate with the second cutting head 20. After the cutting head assembly is snap-fitted with the snap-fitting groove 411, the first cutting head 10 moves to the second position.

[0056] When in use, when the cutter head assembly is completely inserted into the clamping groove 411 and is clamped and matched with the clamping groove 411, Figures 8 to 10 As shown, the inner walls of the first abutting wall 411a and the second abutting wall 411b on both sides of the clamping groove 411 respectively abut against the first blade head 10 and the second blade head 20, thereby causing the first blade head 10 to enter the second position. At this time, the old blade 50 is in an unclamped state. Therefore, the new blade 50 can be pushed into the accommodating space by the blade changing assembly 42, and the old blade 50 can be pushed out by the new blade 50 to complete the replacement of the blade 50. In this way, during the replacement of the blade 50, the user does not need to touch the new blade 50 or the old blade 50 to complete the replacement of the blade 50. Not only is the replacement process more convenient and quick, but it also greatly improves safety and effectively prevents the user from being scratched by the blade 50.

[0057] A new blade cavity 412 and an old blade cavity 413 are provided on the box body 41. The new blade cavity 412 and the old blade cavity 413 are spaced apart along the length direction of the box body 41. The snap-fit groove 411 is located between the new blade cavity 412 and the old blade cavity 413. The new blade cavity 412 and the old blade cavity 413 are respectively connected to the snap-fit groove 411.

[0058] The snap-in slot 411 is provided with a blade inlet 414 and a blade outlet 415 at both ends of the box body 41 in the length direction. The blade inlet 414 is connected to the new blade cavity 412, and the blade outlet 415 is connected to the old blade cavity 413. After the cutter head assembly is snap-fitted with the snap-in slot 411, the blade inlet 414 and the blade outlet 415 are respectively located at the two ends of the accommodating space.

[0059] In this implementation, if Figure 7 As shown, the snap-in slot 411 is set in the middle of the box body 41, and is divided into a new blade chamber 412 and an old blade chamber 413 on both sides. In the length direction of the box body 41, a blade inlet 414 and a blade outlet 415 are respectively set on both sides of the snap-in slot 411. The new blade chamber 412 is connected to the snap-in slot 411 through the blade inlet 414, and the old blade chamber 413 is connected to the snap-in slot 411 through the blade outlet 415. Figure 8 As shown, when the cutter head assembly is completely inserted into the snap-in groove 411 and snap-fitted with the snap-in groove 411, the blade inlet 414, the accommodating space and the blade outlet 415 correspond to and are connected in sequence in the length direction of the box body 41, so that the new blade 50 can enter the accommodating space through the blade inlet 414. At the same time, the old blade 50 can enter the old blade cavity 413 through the blade outlet 415 after being pushed out of the accommodating space, thereby completing the recovery of the blade 50.

[0060] like Figure 7 As shown, the blade changing assembly 42 is disposed in the new blade chamber 412. The blade changing assembly 42 includes: a new blade box 421, a support platform 423, and a slider 424. A slide groove 4211 is provided at the top of the new blade box 421, and the slide groove 4211 extends along the length of the box body 41. The new blade box 421 is provided with a blade opening, which corresponds to and is connected to the blade inlet 414. The support platform 423 is disposed in the new blade box 421, and the bottom of the support platform 423 is connected to the bottom of the new blade box 421 via a spring. A new blade 50 is placed on the top of the support platform 423, so that the support platform 423 can abut the top of the new blade box 421 with the new blade 50. The slider 424 is movably disposed in the slide groove 4211, and the bottom of the slider 424 abuts the new blade 50. During use, the slider 424 is moved along the length direction to drive the new blade 50 to move, so that the new blade 50 enters the engaging groove 411 from the blade inlet 414, thereby completing the replacement of the blade 50.

[0061] By providing the blade changing assembly 42, after the cutter head assembly is engaged with the engaging groove 411, the blade 50 can be replaced by moving the slider 424, which is convenient, fast, safer and more reliable.

[0062] In this embodiment, if Figure 7 、 Figure 8 and Figure 11As shown, the tool changing box 40 further includes: a pressure plate 43, which is rotatably connected to the box body 41, and the pressure plate 43 switches between the limit position and the avoidance position by rotating. Figure 8 As shown, the pressure plate 43 presses against the first cutter head 10, thereby fixing the cutter head assembly. In the avoidance position of the pressure plate 43, the pressure plate 43 avoids the first cutter head 10, so that the cutter head assembly can enter or disengage from the clamping groove 411, thereby facilitating the installation and disassembly of the cutter head assembly and the box body 41.

[0063] In such Figure 9 and Figure 10 In another embodiment shown, the tool changing box 40 may not be provided with the pressure plate 43, and it is also feasible to achieve the engagement and disengagement with the engaging groove 411 by changing the angle of the tool head assembly.

[0064] It will be understood that the above embodiments are merely exemplary embodiments for illustrating the principles of the present invention, and the present invention is not limited thereto. Those skilled in the art will appreciate that various modifications and improvements can be made without departing from the spirit and substance of the present invention, and such modifications and improvements are also considered to be within the scope of protection of the present invention.

Claims

1. A cutter head assembly, characterized in that: include: A first cutting head (10) is provided with a first clamping portion (11); A second cutting head (20) is provided with a second clamping portion (21), wherein an accommodating space for accommodating a blade (50) is formed between the first clamping portion (11) and the second clamping portion (21); In a first direction, the first cutting head (10) and the second cutting head (20) are relatively movable, the first cutting head (10) has a first position and a second position relative to the second cutting head (20), and the first cutting head (10) switches between the first position and the second position by moving relative to the second cutting head (20); In the first position of the first cutting head (10), the first clamping portion (11) and the second clamping portion (21) are close to each other to clamp the blade (50) in the accommodating space; In the second position of the first cutting head (10), the first clamping portion (11) and the second clamping portion (21) are spaced apart from each other, so that the blade (50) is separated from or enters the accommodating space.

2. The cutter head assembly according to claim 1, wherein: The cutter head assembly further comprises: A reset elastic member (30) is connected between the first cutter head (10) and the second cutter head (20), and the elastic member is used to reset the first cutter head (10) to the first position.

3. The cutter head assembly according to claim 2, wherein: The first cutting head (10) comprises: a top wall (12), a bottom wall (13) and a connecting wall (14); the top wall (12), the connecting wall (14) and the bottom wall (13) are sequentially connected to form a guide groove; one end of the second cutting head (20) in the first direction is located inside the first cutting head (10); In the first position of the first cutting head (10), one end of the second cutting head (20) located inside the second cutting head (20) is away from the connecting wall (14); In the second position of the first cutter head (10), one end of the second cutter head (20) located inside the second cutter head (20) is close to the connecting wall (14).

4. The cutter head assembly according to claim 3, wherein: A first protrusion (111) and a first inner surface (112) extending to the first protrusion (111) are provided on a side of the top wall (12) facing the second cutting head (20); the first protrusion (111) is located at an end of the top wall (12) away from the connecting wall (14); the first protrusion (111) and the first inner surface (112) form the first clamping portion (11).

5. The cutter head assembly according to claim 4, wherein: The second clamping portion (21) is a mounting groove for accommodating the blade (50) and is provided on a side of the second cutting head (20) facing the top wall (12); the mounting groove has a first groove wall close to the connecting wall (14) and a second groove wall away from the connecting wall (14) in the first direction; In a first position of the first cutting head (10), the first protrusion (111) is close to the first groove wall, and the first inner surface (112) is close to the groove bottom of the mounting groove; In the second position of the first cutting head (10), the first protrusion (111) is away from the first groove wall, and the first inner surface (112) is away from the groove bottom of the mounting groove.

6. The cutter head assembly according to claim 3, wherein: A limiting groove (22) is provided on the side of the second cutting head (20) facing the bottom wall (13), and a second protrusion (131) is provided on the bottom wall (13) to cooperate with the limiting groove (22). The second protrusion (131) is used to limit the movement of the first cutting head (10) between the first position and the second position.

7. The cutter head assembly according to claim 3, wherein: One end of the reset elastic member (30) is connected to the second cutter head (20), and the second end of the reset elastic member (30) abuts against the inner surface of the connecting wall (14).

8. The cutter head assembly according to claim 3, wherein: The first clamping portion (11) is a mounting groove provided on a side of the top wall (12) facing the second cutting head (20); a third protrusion (211) and a clamping surface (212) are provided on a side of the second cutting head (20) facing the top wall (12); the clamping surface (212) is located between the third protrusion (211) and one end of the second cutting head (20) facing the connecting wall (14); the third protrusion (211) and the clamping surface (212) form the second clamping portion (21); In the first position of the first cutting head (10), the third protrusion (211) is close to the connecting wall (14), and the bottom of the mounting groove is close to the clamping surface (212); In the second position of the first cutting head (10), the third protrusion (211) is away from the connecting wall (14), and the bottom of the mounting groove is away from the clamping surface (212).

9. The cutter head assembly according to claim 3, wherein: The reset elastic member (30) is movably arranged on the connecting wall (14); one end of the reset elastic member (30) located inside the connecting wall (14) is connected to the second cutter head (20); and one end of the reset elastic member (30) located outside the connecting wall (14) abuts against the connecting wall (14).

10. A razor, characterized in that: include: The cutter head assembly and the cutter handle according to any one of claims 1 to 9.

11. A blade replacement box for replacing the blade of the razor according to claim 10, characterized in that: The tool changing box comprises: The box body (41) is provided with a snap-fitting groove (411) for snap-fitting with the cutter head assembly; A blade changing assembly (42) is provided on the box body (41), and is used for transporting a new blade (50) into the accommodating space and pushing the old blade (50) out of the accommodating space after the cutter head assembly is engaged with the engaging groove (411).

12. The tool changing box according to claim 11, characterized in that: The engaging groove (411) is provided with a first abutting wall (411a) and a second abutting wall (411b) which are arranged opposite to each other. The first abutting wall (411a) is used for abutting and cooperating with the first cutter head (10), and the second abutting wall (411b) is used for abutting and cooperating with the second cutter head (20). After the cutter head assembly is engaged with the engaging groove (411), the first cutter head (10) moves to the second position.

13. The tool changing box according to claim 11, characterized in that: The box body (41) is provided with a new blade cavity (412) and an old blade cavity (413), the new blade cavity (412) and the old blade cavity (413) are arranged at intervals along the length direction of the box body (41), the clamping groove (411) is located between the new blade cavity (412) and the old blade cavity (413), and the new blade cavity (412) and the old blade cavity (413) are respectively communicated with the clamping groove (411).

14. The tool changing box according to claim 13, characterized in that: The snap-fitting groove (411) is provided with a blade inlet (414) and a blade outlet (415) at both ends of the length direction of the box body (41), respectively. The blade inlet (414) is communicated with the new blade cavity (412), and the blade outlet (415) is communicated with the old blade cavity (413). After the cutter head assembly is snap-fitted with the snap-fitting groove (411), the blade inlet (414) and the blade outlet (415) are respectively located at the two ends of the accommodating space.

15. The tool changing box according to claim 14, characterized in that: The tool changing assembly (42) comprises: A new blade box (421) is arranged in the new blade cavity (412), one end of the new blade box (421) is provided with a blade opening corresponding to the blade inlet (414), and a sliding groove (4211) is provided on the top of the new blade box (421); A support platform (423) is provided in the new blade box (421), and a space for arranging a replacement blade is formed between the support platform (423) and the top of the new blade box (421); The slider (424) is movably arranged in the slide groove (4211), and the bottom of the slider (424) is used to abut against the replacement blade to drive the replacement blade to move.

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