Detachable device for moving blade of rotary shaver

Abstract

The utility model discloses a detachable device for a movable cutter of a rotary shaver, which comprises a fixed cutter holder and a movable cutter limiting ring arranged on the fixed cutter holder, a first clamping structure is arranged on the fixed cutter holder, and a second clamping structure which can be matched with and clamped with the first clamping structure is arranged on the side of the movable cutter limiting ring; and through rotation, the first clamping structure and the second clamping structure can be in a locked or loosened state, so that the side of the movable cutter limiting ring and the fixed cutter holder are in a connected or separated state. Rapid and tool-free disassembly is achieved through rotating operation. The structure reliability is improved, falling is prevented, a user can conveniently take out the movable cutter head from the fixed cutter base for cleaning and maintenance, and the problems that in traditional design, disassembly is inconvenient, and cleaning is difficult are solved.

Description

Technical Field

[0001] This utility model relates to the field of shaver technology, and in particular to a detachable moving blade device for a rotary shaver. Background Technology

[0002] Rotary shavers, as a common personal care tool, rely on the precise coordination between the moving and stationary blades for their core function. The moving blade assembly typically uses high-speed rotation to create a shearing action with the stationary blades, achieving an efficient shave.

[0003] However, cleaning and maintaining the moving blade assembly has always been a pain point in user experience. In traditional designs, the moving blade is mostly fixed with screws or simple snap-fit ​​structures. Although these methods can achieve basic fixation, they have significant shortcomings, such as inconvenient disassembly; low structural reliability, with the risk of falling off; and difficulty in thoroughly cleaning the beard debris remaining inside the blade head, which may breed bacteria and affect shaving performance.

[0004] Therefore, there is an urgent need for a device that can both ensure the secure locking of the moving blade assembly and enable quick, tool-free disassembly, in order to meet users' dual needs for convenient cleaning and product durability. Utility Model Content

[0005] Therefore, the purpose of this utility model is to provide a detachable rotating blade device for a rotary shaver, which has the characteristics of simple and stable structure and convenient disassembly and installation.

[0006] The technical solution adopted by this utility model to solve its technical problem is as follows:

[0007] A detachable moving blade device for a rotary shaver includes a fixed blade holder, a moving blade limiting ring disposed on the fixed blade holder, a first locking structure disposed on the fixed blade holder, and a second locking structure disposed on the side of the moving blade limiting ring that can cooperate with and lock into place the first locking structure; by rotation, the first locking structure and the second locking structure can be locked or released, so that the side of the moving blade limiting ring is connected or disengaged from the fixed blade holder.

[0008] Furthermore, the fixed tool holder includes an annular wall, the first snap-fit ​​structure is evenly disposed on the annular wall, the first snap-fit ​​structure includes a positioning groove opened in the vertical direction, and includes a snap-fit ​​groove on one side connected to the lower end of the positioning groove and on the other side opened in the circumferential direction of the annular wall; the moving tool limiting ring includes an annular ridge that can be installed on the inner side wall of the annular wall, and the second snap-fit ​​structure includes a snap-fit ​​protrusion disposed on the outer side of the annular ridge.

[0009] Furthermore, the snap-fit ​​groove includes a first transverse groove connected to the positioning groove, and a downwardly protruding arcuate protrusion is provided on one side of the upper edge of the first transverse groove.

[0010] Furthermore, a second transverse groove is provided on the other side of the first transverse groove, and the width of the second transverse groove is smaller than that of the first transverse groove.

[0011] Furthermore, the upper edge of the second transverse groove is flush with the upper edge of the first transverse groove, and the lower edge of the second transverse groove forms a step with the lower edge of the first transverse groove, with the transition part of the step forming a rounded arc surface.

[0012] Furthermore, an anti-detachment protrusion is provided above the snap-fit ​​groove on the inner side of the ring wall, and a release groove for avoiding the anti-detachment protrusion is provided on the outer side of the annular ridge.

[0013] Furthermore, it also includes a movable tool disc rotatably connected within the fixed tool holder, wherein the movable tool limiting ring is installed on the movable tool disc to restrict the movable tool disc from moving up and down.

[0014] The beneficial effects of this utility model are:

[0015] 1. By setting a fixed tool holder and a moving tool limiting ring, and respectively setting a first locking structure and a second locking structure on them, the moving tool limiting ring can be connected or disengaged from the fixed tool holder by rotating these two locking structures to lock or release them. This allows for quick, tool-free disassembly through rotation. This improves the reliability of the structure, prevents detachment, and facilitates the user's removal of the moving tool disc from the fixed tool holder for cleaning and maintenance, solving the problems of inconvenient disassembly and difficult cleaning in traditional designs.

[0016] 2. During installation, the snap-fit ​​protrusion on the annular ridge first engages with the positioning groove. The snap-fit ​​protrusion moves downward along the positioning groove. When the snap-fit ​​protrusion abuts against the bottom edge of the positioning groove, the moving tool limiting ring is rotated, causing the snap-fit ​​protrusion to move along the circumferential snap-fit ​​groove, ultimately achieving engagement between the snap-fit ​​protrusion and the first snap-fit ​​structure of the fixed tool holder. During disassembly, the moving tool limiting ring is rotated in the opposite direction, causing the snap-fit ​​protrusion to move out of the snap-fit ​​groove and finally disengage from the positioning groove, allowing the moving tool limiting ring to be removed. This achieves both stable fixation and convenient disassembly of the moving tool limiting ring.

[0017] 3. The snap-fit ​​protrusion abuts against the lower part of the arc-shaped protrusion, causing a slight elastic deformation of the ring wall, which allows the snap-fit ​​protrusion to disengage or enter the first transverse groove. On the one hand, the design of the arc-shaped protrusion further increases the robustness of the snap-fit ​​structure; on the other hand, it also increases the tactile feedback during installation, ensuring that the moving cutter head will not accidentally loosen during use. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the external structure of a rotary shaver head;

[0019] Figure 2 This is a schematic diagram of the exploded structure of a rotating razor head;

[0020] Figure 3This is a partial schematic diagram of the movement limit ring and the fixed tool holder in action;

[0021] Figure 4 This is a partial schematic diagram of the first and second snap-fit ​​structures. Detailed Implementation

[0022] To make the technical problem solved by this utility model, the technical solution adopted, and the technical effect achieved clearer, the technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are merely for explaining this utility model and not for limiting it. Furthermore, it should be noted that, for ease of description, only the parts related to this utility model are shown in the accompanying drawings, not all of them.

[0023] Reference Figure 1 , Figure 2 This utility model proposes a detachable rotating blade device for a rotary shaver, including a fixed blade seat 1, a rotating blade limiting ring 2 disposed on the fixed blade seat 1, a first locking structure 10 disposed on the fixed blade seat 1, and a second locking structure 20 disposed on the side of the rotating blade limiting ring 2, which can cooperate with and lock the first locking structure 10.

[0024] By rotating, the first locking structure 10 and the second locking structure 20 can be locked or released, so that the side of the moving tool limiting ring 2 is connected or disconnected from the fixed tool holder 1.

[0025] Furthermore, the movable cutter head 3 is rotatably connected within the fixed cutter holder 1, and the movable cutter limiting ring 2 is installed on the movable cutter head 3 to restrict its vertical movement. Rotation causes the first locking structure 10 and the second locking structure 20 to be locked or released, thereby connecting or disengaging the movable cutter limiting ring 2 from the fixed cutter holder 1. This rotational operation enables quick, tool-free disassembly. This improves structural reliability, prevents detachment, and facilitates user removal of the movable cutter head 3 for cleaning and maintenance, solving the problems of inconvenient disassembly and difficult cleaning in traditional designs.

[0026] Reference Figure 3 , Figure 4 The fixed tool holder 1 includes an annular wall 11, and a first snap-fit ​​structure 10 is evenly disposed on the annular wall 11. The first snap-fit ​​structure 10 includes a positioning groove 100 opened in the vertical direction, and a snap-fit ​​groove 101 with one side connected to the lower end of the positioning groove 100 and the other side opened in the circumferential direction of the annular wall 11.

[0027] The moving blade limiting ring 2 includes an annular ridge 21 that can be installed on the inner side wall of the ring wall 11, and the second snap-fit ​​structure 20 includes a snap-fit ​​protrusion 201 disposed on the outer side of the annular ridge 21.

[0028] Furthermore, during installation, the snap-fit ​​protrusion 201 of the annular ridge 21 first engages with the positioning groove 100. The snap-fit ​​protrusion 201 moves downward along the positioning groove 100. When the snap-fit ​​protrusion 201 abuts against the bottom edge of the positioning groove 100, the moving tool limiting ring 2 is rotated, causing the snap-fit ​​protrusion 201 to move along the circumferential snap-fit ​​groove 101, ultimately achieving engagement between the snap-fit ​​protrusion 201 and the first snap-fit ​​structure 10 of the fixed tool holder 1. During disassembly, the moving tool limiting ring 2 is rotated in the opposite direction, causing the snap-fit ​​protrusion 201 to move out of the snap-fit ​​groove 101 and finally disengage from the positioning groove 100, thus achieving stable fixation and convenient disassembly of the moving tool limiting ring 2.

[0029] Reference Figure 4 The snap-fit ​​groove 101 includes a first horizontal groove 1011 connected to the positioning groove 100, and a downwardly protruding arc-shaped protrusion 1012 is provided on the upper side of one side of the first horizontal groove 1011.

[0030] Specifically, the snap-fit ​​protrusion 201 abuts against the lower part of the arc-shaped protrusion 1012. When the moving tool limiting ring 2 is rotated, the ring wall 11 undergoes a slight elastic deformation, causing the snap-fit ​​protrusion 201 to disengage or enter the first transverse groove 1011. On the one hand, the design of the arc-shaped protrusion 1012 further increases the robustness of the snap-fit ​​structure; on the other hand, it also increases the tactile feedback during installation, ensuring that the moving tool disc 3 will not accidentally loosen during use.

[0031] Reference Figure 4 A second transverse groove 1010 is provided on the other side of the first transverse groove 1011, and the width of the second transverse groove 1010 is smaller than that of the first transverse groove 1011. Specifically, the first transverse groove 1011 provides the main locking and positioning functions, and the second transverse groove 1010 is interference-fitted with the locking protrusion 201. When the moving tool limit ring 2 is tightened, the locking protrusion 201 can lock into the second transverse groove 1010. This reduces the risk of loosening between the moving tool limit ring 2 and the moving tool disc 3 during use.

[0032] Reference Figure 4 The upper edge of the second transverse groove 1010 is flush with the upper edge of the first transverse groove 1011, and the lower edge of the second transverse groove 1010 forms a step with the lower edge of the first transverse groove 1011. The transition part of the step forms a rounded arc surface 1013. Specifically, the rounded arc surface 1013 allows the engaging protrusion 201 to smoothly engage with the second transverse groove 1010, making disassembly and installation smoother, and also avoiding wear on the components from sharp edges, thus extending their service life.

[0033] Reference Figure 3 Above the snap-fit ​​groove 101, on the inner side of the annular wall 11, there is an anti-detachment protrusion 102, and on the outer side of the annular ridge 21, there is a release groove 200 for avoiding the anti-detachment protrusion 102.

[0034] Specifically, when disassembly is required, the moving blade limiting ring 2 is rotated, causing the engaging protrusion 201 to move from the engaging groove 101 to the positioning groove 100. At this point, the disengagement groove 200 of the annular ridge 21 aligns with the anti-disengagement protrusion 102, allowing the moving blade limiting ring 2 to be disassembled smoothly. The presence of the anti-disengagement protrusion 102 prevents the moving blade limiting ring 2 from disengaging before it is rotated to a specific angle, thus providing additional safety. The design of the disengagement groove 200 ensures that the moving blade limiting ring 2 can be smoothly disassembled from the ring wall when rotated to the correct position.

[0035] Reference Figure 2 The rotating head of this shaver mainly includes a fixed blade holder 1, a movable blade disc 3 rotatably connected within the fixed blade holder 1, and a movable blade limiting ring 2 installed on the movable blade disc 3 to restrict its vertical movement. Before disassembling the movable blade disc 3, the movable blade limiting ring 2 needs to be removed. This ensures the stability and firmness of the movable blade disc 3 during use; furthermore, the convenient disassembly and assembly of the movable blade limiting ring 2 solves the problems of inconvenient disassembly, low structural reliability, and difficulty in cleaning in traditional designs.

[0036] The above description is merely an embodiment of this application and is not intended to limit the scope of protection of this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of protection of this application.

Claims

1. A rotary shaver cartridge detachable device, characterized in that, The utility model provides a fixed knife seat (1), the moving knife limiting ring (2) of setting in fixed knife seat (1), first clamping structure (10) is provided on fixed knife seat (1), the side of moving knife limiting ring (2) is provided with second clamping structure (20) can cooperate with first clamping structure (10) and clamping, By rotation, the first clamping structure (10) and the second clamping structure (20) can be in a locked or loosened state, so that the side of the moving knife limiting ring (2) and the fixed knife seat (1) are in a connected or disconnected state.

2. A detachable cartridge for a rotary shaver according to claim 1, characterized in that The fixed knife seat (1) includes a ring wall (11), the first clamping structure (10) is uniformly arranged on the ring wall (11), the first clamping structure (10) includes a positioning groove (100) opened in the up-down direction, a clamping groove (101) is connected to the lower end of the positioning groove (100) on one side and opened in the circumferential direction of the ring wall (11). The moving knife limiting ring (2) includes a ring rib (21) that can be installed on the inner side wall of the ring wall (11), and the second clamping structure (20) includes a clamping protrusion (201) arranged on the outer side of the ring rib (21).

3. A detachable cartridge for a rotary shaver according to claim 2, characterized in that The clamping groove (101) includes a first horizontal groove (1011) connected to the positioning groove (100), and a lower convex arc protrusion (1012) is arranged on one side of the upper edge of the first horizontal groove (1011).

4. A detachable cartridge for a rotary shaver according to claim 3, characterized in that The other side of the first horizontal groove (1011) is provided with a second horizontal groove (1010), and the width of the second horizontal groove (1010) is smaller than that of the first horizontal groove (1011).

5. A detachable cartridge for a rotary shaver according to claim 4, characterized in that The upper edge of the second horizontal groove (1010) is flush with the upper edge of the first horizontal groove (1011), and the lower edge of the second horizontal groove (1010) and the lower edge of the first horizontal groove (1011) form a step, and the transition part of the step forms a rounded arc surface (1013).

6. A detachable cartridge for a rotary shaver according to claim 2, characterized in that The upper side of the clamping groove (101) is provided with an anti-disengagement protrusion (102) on the inner side of the ring wall (11), and the outer side of the ring rib (21) is provided with a disengagement groove (200) for avoiding the anti-disengagement protrusion (102).

7. A detachable cartridge for a rotary shaver according to claim 1, characterized in that It also includes a moving knife disc (3) rotatably connected in the fixed knife seat (1), and the moving knife limiting ring (2) is installed on the moving knife disc (3) to limit the loosening of the moving knife disc (3) in the up-down direction.

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