Cartridge assembly, shaver and refill cartridge

Abstract

The utility model provides a kind of head assembly, razor and change cutter box, head assembly, comprising: first head, is provided with first clamping part;Second head is provided with second clamping part, and the accommodating space for accommodating blade is formed between first clamping part and second clamping part;In first direction, first head and second head are relatively movable between first head and second head, first head has first position and second position relative to second head, and first head switches between first position and second position by moving relative to second head;In the first position of first head, first clamping part and second clamping part are close to each other, to hold the blade in accommodating space;In the second position of first head, first clamping part and second clamping part are far from each other, to make blade disengage or enter accommodating space.The head assembly of the utility model by setting first head and second head, when replacing blade, only need to exert force to complete the disengagement and fixation of blade, improve change cutter efficiency.

Description

Technical Field

[0001] This utility model relates to the field of personal care products technology, specifically to a blade assembly, a razor, and a blade replacement box. Background Technology

[0002] Traditional razor heads typically use a clamping mechanism to hold the blades in place. This design makes the blades prone to rusting or wear after prolonged use, requiring replacement to maintain shaving performance. However, current head assemblies often employ a one-piece design, making blade replacement complex and cumbersome, wasting time and potentially increasing user costs. Furthermore, with traditional head assemblies, it's often difficult to precisely align the blade with the head assembly during blade replacement, affecting shaving comfort and effectiveness.

[0003] Therefore, there is an urgent need for a razor head assembly, razor, and blade replacement box that allows users to easily replace blades, is easy to operate, and has a reliable structure. Utility Model Content

[0004] This invention aims to at least solve the problem of the complex and cumbersome blade replacement process in the prior art, and proposes a blade head assembly, a shaver, and a blade replacement box.

[0005] To achieve the purpose of this utility model, a blade assembly is provided, comprising: a first blade with a first clamping portion; a second blade with a second clamping portion, wherein a receiving space for accommodating a blade is formed between the first clamping portion and the second clamping portion; the first blade and the second blade are relatively movable in a first direction, the first blade having a first position and a second position relative to the second blade, the first blade switching between the first position and the second position by moving relative to the second blade; in the first position of the first blade, the first clamping portion and the second clamping portion approach each other to clamp the blade in the receiving space; in the second position of the first blade, the first clamping portion and the second clamping portion move away from each other to allow the blade to disengage from or enter the receiving 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, wherein the top wall, the connecting wall, and the bottom wall are sequentially connected 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 a 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 a 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, the top wall is provided with a first protrusion and a first inner surface extending to the first protrusion on the side facing the second cutter head. The first protrusion is located at the 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 provided on the side of the second cutting head facing the top wall. 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 a 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 a 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 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 cutter 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 the side of the second cutting head facing the top wall is provided with a third protrusion and a clamping surface. The clamping surface is located at the end of the third protrusion and the end of the second cutting head facing the connecting wall, and the third protrusion and the clamping surface form the second clamping portion. In a 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 a 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 disposed on the connecting wall, with one end of the reset elastic member located inside the connecting wall connected to the second cutter head, and the other end of the reset elastic member located outside the connecting wall abutting against the connecting wall.

[0014] According to a second aspect of the present invention, a razor is also disclosed, comprising: the blade assembly and the handle described above.

[0015] According to a third aspect of this utility model, a blade replacement box is also disclosed for replacing the blades of the aforementioned razor. The blade replacement box includes: a box body with a snap-fit ​​groove for engaging with the razor head assembly; and a blade replacement assembly disposed on the box body. The blade replacement assembly is used to transport a new blade into the receiving space and push the old blade out of the receiving space after the razor head assembly engages with the snap-fit ​​groove.

[0016] In some embodiments, the snap-fit ​​groove is provided with a first abutting wall and a second abutting wall disposed opposite to each other. The first abutting wall is used to abut against the first cutting head, and the second abutting wall is used to abut against the second cutting head. After the cutting head assembly is snapped into the snap-fit ​​groove, the first cutting head moves to the second position.

[0017] In some embodiments, the housing is provided with a new blade cavity and an old blade cavity, which are spaced apart along the length of the housing. 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-fit ​​groove is provided with a blade inlet and a blade outlet at both ends of the box body along its length. The blade inlet communicates with the new blade cavity, and the blade outlet communicates with the old blade cavity. After the blade head assembly is engaged with the snap-fit ​​groove, the blade inlet and the blade outlet are located at both ends of the receiving space.

[0019] In some embodiments, the tool changing assembly includes: a new blade box disposed within the new blade cavity, one end of the new blade box having a blade opening corresponding to the blade inlet, and a groove on the top of the new blade box; a support platform disposed within the new blade box, with a space between the support platform and the top of the new blade box forming a space for placing a replacement blade; and a slider movably disposed within the groove, the bottom of the slider abutting against the replacement blade to drive the replacement blade to move.

[0020] This utility model's blade assembly, by incorporating a first and second blade that can move relative to each other, allows the user to easily detach and secure the blade during replacement with minimal force, thereby improving blade replacement efficiency and saving operation time. Furthermore, when the first blade is in the second position, the first and second clamping parts are separated, effectively preventing the risk of accidental cuts from direct contact between the blade and fingers during installation or removal. This design not only enhances the user experience but also strengthens safety. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the cutter head assembly according to Embodiment 1 of this utility model;

[0022] Figure 2 This is a schematic diagram of the first cutter head of the cutter head assembly in the first position according to Embodiment 1 of this utility model;

[0023] Figure 3 This is a schematic diagram of the second cutter head of the cutter head assembly in the first position according to Embodiment 1 of this utility model;

[0024] Figure 4 This is a schematic diagram of the cutter head assembly according to Embodiment 2 of this utility model;

[0025] Figure 5 This is a schematic diagram of the first cutter head of the cutter head assembly in the first position according to Embodiment 2 of this utility model;

[0026] Figure 6 This is a schematic diagram of the second cutter head of the cutter head assembly in the first position according to Embodiment 2 of this utility model;

[0027] Figure 7 This is a schematic diagram of the tool changer box according to an embodiment of the present utility model;

[0028] Figure 8 This is a schematic diagram showing the tool head assembly of the tool changer box and its cooperation with the tool changer box in an embodiment of this utility model;

[0029] Figure 9 This is a schematic diagram showing the cutter head assembly of the tool changer box and the tool changer box engaging in another embodiment of the present invention;

[0030] Figure 10 This is a schematic diagram showing the cutter head assembly of the tool changer box disengaged from the tool changer box according to another embodiment of the present invention;

[0031] Figure 11 This is a schematic diagram showing the tool head assembly of the tool changer box and its cooperation with the tool changer box in another embodiment of the present invention;

[0032] List of reference numerals in the attached diagram:

[0033] 10. First cutting head; 11. First clamping part; 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 part; 211. Third protrusion; 212. Clamping surface; 22. Limiting groove; 30. Reset elastic element; 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. Pressure plate; 50. Blade; 51. Blade body; 52. Mating part. Detailed Implementation

[0034] To enable those skilled in the art to better understand the technical solution of this utility model, the blade assembly, shaver, and blade replacement box provided by this utility model will be described in detail below with reference to the accompanying drawings.

[0035] like Figures 1 to 6 As shown, this utility model discloses a blade assembly, including a first blade 10 and a second blade 20. The first blade 10 is provided with a first clamping portion 11; the second blade 20 is provided with a second clamping portion 21, and a receiving 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 blade 10 and the second blade 20 are relatively movable, and the first blade 10 has a first position and a second position relative to the second blade 20. The first blade 10 switches between the first position and the second position by moving relative to the second blade 20. In the first position of the first blade 10, the first clamping portion 11 and the second clamping portion 21 are close to each other to clamp the blade 50 in the receiving space; in the second position of the first blade 10, the first clamping portion 11 and the second clamping portion 21 are far apart from each other to allow the blade 50 to disengage from or enter the receiving space.

[0036] When the blade 50 needs to be replaced, the first cutting head 10 is moved to the second position, causing the first clamping part 11 and the second clamping part 21 to move away from each other. This allows the old blade 50 to be removed from the receiving space, while the new blade 50 can be easily placed into the receiving space. After the new blade 50 is placed in, the first cutting head 10 is moved to the first position, causing the first clamping part 11 and the second clamping part 21 to clamp the new blade 50, thereby securing the new blade 50.

[0037] The blade assembly of this invention, by setting a first blade 10 and a second blade 20 that can move relative to each other, allows the user to easily detach and secure the blade 50 during blade replacement with only a slight force, thereby improving blade replacement efficiency and saving operation time. Furthermore, when the first blade 10 is in the second position, the first clamping part 11 and the second clamping part 21 are far apart, effectively preventing the risk of accidental cuts caused by direct contact between the blade 50 and fingers during installation or removal. This design not only enhances the user experience but also strengthens safety during use.

[0038] In some embodiments, the cutter head assembly further includes a reset elastic member 30, which is connected between the first cutter head 10 and the second cutter head 20. The reset elastic member 30 is used to reset the first cutter head 10 to a first position. In use, under the action of external force, the first cutter head 10 and the second cutter head 20 move to a second position against the elastic force of the reset elastic member 30. After the external force disappears, the first cutter head 10 is reset to the first position under the action of the elastic force of the reset elastic member 30, thereby keeping the first clamping part 11 and the second clamping part 21 clamping the blade 50 at all times, 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 being connected in sequence to form a guide groove, and one end of the second cutting head 20 in a first direction being located inside the first cutting head 10; in a 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 a 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 this utility model will be further described below with reference to specific embodiments, such as... Figures 1 to 3 In one embodiment shown, the top wall 12 is provided with a first protrusion 111 and a first inner surface 112 extending to the first protrusion 111 on the side facing the second cutter head 20. The first protrusion 111 is located at the end of the top wall 12 away from the connecting wall 14, and the first protrusion 111 and the first inner surface 112 form a first clamping part 11.

[0041] The second clamping part 21 is a mounting groove for accommodating the blade 50 provided on the 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.

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

[0043] The second cutter head 20 is provided with a limiting groove 22 on the side facing the bottom wall 13, and the bottom wall 13 is provided with a second protrusion 131 that cooperates with the limiting groove 22. The first protrusion 111 is used to restrict the movement of the first cutter head 10 between the first position and the second position.

[0044] One end of the reset elastic element 30 is connected to the second cutter head 20, and the second end of the reset elastic element 30 abuts against the inner surface of the connecting wall 14.

[0045] When it is necessary to change the blade 50, the first blade 10 and the second blade 20 are brought closer together by pressing them together in the first direction. Figure 3 As shown, the first cutting head 10 is moved to the second position. At this time, because the first protrusion 111 is away from the first groove wall and the first inner surface 112 is away from the bottom of the mounting groove, the old blade 50 is no longer clamped. A slight tilt allows the old blade 50 to slide out of the receiving space, or the new blade 50 can be directly placed into the receiving space and pushed out by the new blade 50. After the new blade 50 is fully inserted into the receiving 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... Figure 2 As shown, the device 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 bottom of the mounting groove, thereby clamping and fixing the new blade 50.

[0046] Using this method, the process of replacing the blade 50 only requires pinching the first blade head 10 and the second blade head 20, which is convenient and quick. Moreover, since the old blade 50 can be detached without touching it with your hands, the risk of being cut by the blade 50 is reduced.

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

[0048] like Figure 5 As shown, at the first position of the first cutter 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; as Figure 6As shown, at the second position of the first cutter 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 element 30 is movably inserted through the connecting wall 14. One end of the reset elastic element 30 located inside the connecting wall 14 is connected to the second cutter head 20, and the other end of the reset elastic element 30 located outside the connecting wall 14 abuts against the connecting wall 14.

[0050] When the blade 50 needs to be replaced, pressing the reset elastic element 30 along the first direction causes the first cutting head 10 and the second cutting head 20 to move away from each other. Figure 6 As shown, the first cutting head 10 is moved to the second position. At this time, because 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 allows the old blade 50 to slide out of the receiving space. Alternatively, the new blade 50 can be directly placed into the receiving space and the old blade 50 can be pushed out by the new blade 50. After the new blade 50 is fully inserted into the receiving space, the reset elastic element 30 is released. Under the action of the reset elastic element 30, as... Figure 5 As shown, the first blade 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 the new blade 50 and completing the fixation.

[0051] Using this method, the process of replacing the blade 50 only requires pressing the reset elastic element 30, which is convenient and quick. Moreover, since the old blade 50 can be disengaged without touching it with your hands, the risk of being cut by the blade 50 is reduced.

[0052] Additionally, it should 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 the thickness of the blade body 51, so as to mate with the first cutting head 10 and the second cutting head 20. In other words, when the blade 50 is assembled in the receiving space between the first cutting head 10 and the second cutting head 20 and is clamped and fixed, the first cutting head 10 and the second cutting head 20 are held on the mating portion 52, and the blade body 51 extends out of the receiving space through the gap between the first cutting head 10 and the second cutting head 20, so that the cutting edge portion of the blade body 51 is exposed, thereby allowing shaving through the exposed cutting edge portion of the blade body 51.

[0053] This utility model also discloses a razor, including: the aforementioned blade head assembly and handle, the blade head assembly and handle being connected. Exemplarily, in... Figures 1 to 3 In the first embodiment shown, the handle is connected to the second cutter head 20, while... Figures 4 to 6 In the second embodiment shown, the handle is connected to the first cutter head 10.

[0054] like Figures 7 to 11 As shown, this utility model also discloses a blade replacement box 40, which is used in conjunction with the aforementioned shaver to replace the shaver blades 50. The blade replacement box 40 includes a box body 41 and a blade replacement assembly 42. The box body 41 is provided with a snap-fit ​​groove 411 for snap-fitting with the aforementioned shaver head assembly. The blade replacement assembly 42 is disposed on the box body 41, and is used to transport a new blade 50 into the receiving space and push the old blade 50 out of the receiving space after the shaver head assembly is snap-fitted with the snap-fit ​​groove 411. By setting up the blade changer box 40, during use, the blade head assembly can engage with the locking slot 411, and the blade changer assembly 42 can transport the new blade 50 into the receiving space and push the old blade 50 out of the receiving space. Thus, the new blade 50 can be replaced by operating the blade changer box 40, and the old blade 50 can also be recycled through the blade changer box 40. This reduces the risk of the blade 50 cutting the hand during the replacement of the new and old blades 50, and improves the safety of replacing the blade 50.

[0055] The snap-fit ​​groove 411 is provided with a first abutting wall 411a and a second abutting wall 411b that are arranged opposite to each other. The first abutting wall 411a is used to abut against the first cutter head 10, and the second abutting wall 411b is used to abut against the second cutter head 20. After the cutter head assembly is snapped into the snap-fit ​​groove 411, the first cutter head 10 moves to the second position.

[0056] During use, when the cutter head assembly is fully inserted into and engaged with the locking groove 411, as follows: 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 locking groove 411 abut against the first cutting head 10 and the second cutting head 20, respectively, thereby causing the first cutting 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 receiving space by the blade changing assembly 42, and the old blade 50 can be pushed out by the new blade 50, thus completing the blade 50 replacement. In this way, during the blade 50 replacement process, the user does not need to touch the new blade 50 or the old blade 50 to complete the blade 50 replacement. This not only makes the replacement process more convenient and faster, but also greatly improves safety and effectively prevents the user from being cut by the blade 50.

[0057] The housing 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 spaced apart along the length of the housing 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-fit ​​groove 411 has a blade inlet 414 and a blade outlet 415 at both ends of the box body 41 along its length. 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 snapped into the snap-fit ​​groove 411, the blade inlet 414 and the blade outlet 415 are located at both ends of the receiving space.

[0059] In this implementation, such as Figure 7 As shown, the snap-fit ​​groove 411 is located in the middle of the housing 41, with a new blade cavity 412 and an old blade cavity 413 on its two sides. Along the length of the housing 41, a blade inlet 414 and a blade outlet 415 are respectively provided on both sides of the snap-fit ​​groove 411. The new blade cavity 412 communicates with the snap-fit ​​groove 411 through the blade inlet 414, and the old blade cavity 413 communicates with the snap-fit ​​groove 411 through the blade outlet 415. Figure 8 As shown, when the cutter head assembly is fully inserted into the locking groove 411 and engages with it, the blade inlet 414, the receiving space, and the blade outlet 415 are sequentially aligned and connected along the length of the housing 41. This allows a new blade 50 to enter the receiving space through the blade inlet 414, while an old blade 50, after being ejected from the receiving space, can enter the old blade cavity 413 through the blade outlet 415, thus completing the recycling of the blade 50.

[0060] like Figure 7 As shown, the tool changing assembly 42 is disposed within the new blade cavity 412. The tool changing assembly 42 includes: a new blade box 421, a support platform 423, and a slider 424. A groove 4211 is provided on the top of the new blade box 421, extending along the length of the box body 41. A blade inlet is provided on the new blade box 421, corresponding to and communicating with the blade inlet 414. The support platform 423 is disposed within the new blade box 421, and its bottom 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, allowing the support platform 423 to abut against the top of the new blade box 421 with the new blade 50. The slider 424 is movably disposed within the groove 4211, and its bottom abuts against the new blade 50. In use, by moving the slider 424 along the length direction, the slider 424 drives the new blade 50 to move, so that the new blade 50 enters the retaining groove 411 from the blade inlet 414, thus completing the replacement of the blade 50.

[0061] By setting up the tool changing component 42, after the tool head component is engaged with the locking slot 411, the tool 50 can be changed by moving the slider 424, which is convenient, quick, and safer.

[0062] In this embodiment, as Figure 7 , Figure 8 and Figure 11As shown, the tool changer box 40 also includes a pressure plate 43, which is rotatably connected to the box body 41. The pressure plate 43 switches between a limiting position and an avoidance position by rotation. In the limiting position of the pressure plate 43, as... Figure 8 As shown, the pressure plate 43 abuts against the first cutter head 10 to fix the cutter head assembly. In the clearance position, the pressure plate 43 avoids the first cutter head 10 so that the cutter head assembly can enter or disengage from the snap-fit ​​groove 411, thereby facilitating the installation and removal of the cutter head assembly from the housing 41.

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

[0064] It is understood that the above embodiments are merely exemplary implementations used to illustrate the principles of this utility model, and the utility model is not limited thereto. For those skilled in the art, various modifications and improvements can be made without departing from the spirit and essence of this utility model, and these modifications and improvements are also considered to be within the protection scope of this utility model.

Claims

1. A blade assembly, characterized in that, include: The first cutting head (10) is provided with a first clamping part (11); The second cutting head (20) is provided with a second clamping part (21), and a receiving space for accommodating the blade (50) is formed between the first clamping part (11) and the second clamping part (21); In a first direction, the first cutter head (10) and the second cutter head (20) are relatively movable, 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); At the first position of the first cutting head (10), the first clamping part (11) and the second clamping part (21) are close to each other to clamp the blade (50) in the receiving space; At the second position of the first blade (10), the first clamping part (11) and the second clamping part (21) are far apart from each other, so that the blade (50) disengages from or enters the receiving space.

2. The cutter head assembly according to claim 1, characterized in that, The cutter head assembly also includes: A reset elastic element (30) is connected between the first cutter head (10) and the second cutter head (20), and the elastic element is used to reset the first cutter head (10) to the first position.

3. The cutter head assembly according to claim 2, characterized in that, The first cutter head (10) includes a top wall (12), a bottom wall (13) and a connecting wall (14), wherein 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 cutter head (20) in the first direction is located inside the first cutter head (10); At a first position of the first cutter head (10), the end of the second cutter head (20) located inside the second cutter head (20) is away from the connecting wall (14); At the second position of the first cutter head (10), the second cutter head (20) is located at one end inside the second cutter head (20) near the connecting wall (14).

4. The cutter head assembly according to claim 3, characterized in that, The top wall (12) is provided with a first protrusion (111) on the side facing the second cutter head (20) and a first inner surface (112) extending to the first protrusion (111). The first protrusion (111) is located at the 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 part (11).

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

6. The cutter head assembly according to claim 3, characterized in that, The second cutter head (20) is provided with a limiting groove (22) on the side facing the bottom wall (13), and the bottom wall (13) is provided with a second protrusion (131) that cooperates with the limiting groove (22). The second protrusion (131) is used to restrict the first cutter head (10) from moving between the first position and the second position.

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

8. The cutter head assembly according to claim 3, characterized in that, The first clamping part (11) is a mounting groove provided on the side of the top wall (12) facing the second cutter head (20). The side of the second cutter head (20) facing the top wall (12) is provided with a third protrusion (211) and a clamping surface (212). 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). The third protrusion (211) and the clamping surface (212) form the second clamping part (21). At the first position of the first cutter 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); At the second position of the first cutter 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, characterized in that, The reset elastic element (30) is movably inserted through the connecting wall (14). One end of the reset elastic element (30) located inside the connecting wall (14) is connected to the second cutter head (20), and the other end of the reset elastic element (30) located outside the connecting wall (14) abuts against the connecting wall (14).

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

11. A blade replacement box for replacing the blades of the razor according to claim 10, characterized in that, The tool changer box includes: The housing (41) is provided with a snap-fit ​​groove (411) for engaging with the cutter head assembly; A tool changing assembly (42) is disposed on the housing (41). The tool changing assembly (42) is used to transport a new blade (50) into the receiving space and push the old blade (50) out of the receiving space after the blade assembly is engaged with the locking groove (411).

12. The tool changer box according to claim 11, characterized in that, The snap-fit ​​groove (411) is provided with a first abutting wall (411a) and a second abutting wall (411b) arranged opposite to each other. The first abutting wall (411a) is used to abut against the first cutter head (10), and the second abutting wall (411b) is used to abut against the second cutter head (20). After the cutter head assembly is snapped into the snap-fit ​​groove (411), the first cutter head (10) moves to the second position.

13. The tool changer box according to claim 11, characterized in that, The housing (41) is provided with a new blade cavity (412) and an old blade cavity (413), which are spaced apart along the length of the housing (41). The snap-fit ​​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 connected to the snap-fit ​​groove (411).

14. The tool changer box according to claim 13, characterized in that, The snap-fit ​​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). 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 blade assembly is snapped into the snap-fit ​​groove (411), the blade inlet (414) and the blade outlet (415) are located at both ends of the accommodating space.

15. The tool changer box according to claim 14, characterized in that, The tool changing assembly (42) includes: A new blade box (421) is disposed 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). A sliding groove (4211) is provided on the top of the new blade box (421). A support platform (423) is provided inside the new blade box (421), and a space is formed between the support platform (423) and the top of the new blade box (421) for setting a replacement blade; A slider (424) is movably disposed within the groove (4211), the bottom of the slider (424) being used to abut against the replacement blade to drive the replacement blade to move.

Images