Rotary shaver head
By designing the stop and sealing assembly in the shaver head, the problem of beard debris entering the drive is solved, a cleaner, more waterproof shaving effect is achieved, and the service life of the equipment is extended.
Patent Information
- Application Number
- CN202420252533.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-02-01
- Publication Date
- 2025-03-14
- Estimated Expiration
- 2034-02-01
AI Technical Summary
During use, existing electric shaver, due to the gap caused by production and assembly tolerances, beard debris can easily enter the drive device, affecting the shaving effect, work efficiency and service life, and may breed bacteria to pose a threat to skin health.
A rotary shaver head is designed to separate and clean the receiving cavity and transmission cavity by providing a stopper and sealing assembly in the main frame to prevent beard debris from entering the drive device, and enhance waterproofing and cleaning through the seal and deformed through holes.
Effectively prevent beard debris from entering the drive device, keep the drive device clean, enhance the waterproof performance of the shaver head, extend service life, and reduce the risk of bacterial growth.
Smart Images

Figure CN222609688U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of personal care, in particular to a rotary shaver head. Background Art
[0002] With the improvement of the quality of life, personal care products, especially electric shavers, have become indispensable daily necessities in modern life. However, in actual use, due to the inevitable tolerances in the production and assembly of the products, there must be a gap between the drive device and other connecting structures, which makes it easy for the shaved beard debris to enter the drive device, which not only affects the shaving effect, but also causes the drive device to rotate poorly due to long-term accumulation, affecting the working efficiency and service life of the shaver. In addition, if the beard debris is not cleaned in time, it may also breed bacteria, posing a potential threat to the user's skin health.
[0003] Therefore, there is a need for a razor head capable of cleaning the drive device. Utility Model Content
[0004] In view of this, the purpose of the utility model is to provide a rotary shaver head, which can clean the accommodating chamber and the transmission chamber by opening the sealing assembly to avoid debris accumulation in the driving device.
[0005] The utility model adopts a technical solution to solve its technical problems, which is to provide a rotary shaver head, comprising a main frame, a fixed blade assembly connected to the main frame and having a fixed blade, and a movable blade assembly having a movable blade and located below the fixed blade assembly, a baffle is arranged inside the main frame so that the cavity inside the main frame is divided into a receiving cavity and a transmission cavity, the razor head also includes a driving device capable of driving the movable blade assembly to rotate and located in the transmission cavity, a first through hole communicating with the outside is arranged on the inner side wall of the receiving cavity, a second through hole communicating with the outside is arranged on the inner side wall of the transmission cavity, and the razor head also includes a sealing assembly detachably connected to the inner side wall of the first through hole and the inner side wall of the second through hole.
[0006] As a further improvement of the utility model, a first sealing member capable of sealing the gap between the baffle plate and the movable knife assembly is fixed on the baffle plate, and the first sealing member and the baffle plate are annular.
[0007] As a further improvement of the utility model, the first sealing member includes a sealing fixing seat fixedly connected to the baffle and a first sealing arm with one end connected to the sealing fixing seat and the other end abutting against the movable knife assembly.
[0008] As a further improvement of the utility model, the baffle is provided with a first groove for installing the sealing fixing seat, the first sealing arm gradually rises in a direction away from the sealing fixing seat, and the first sealing arm is provided with a plurality of deformation through holes.
[0009] As a further improvement of the utility model, the sealing assembly includes a second seal that is detachably sealed and connected to the inner wall of the first through hole and a third seal that is detachably connected to the inner wall of the second through hole. The third seal is fixedly connected to a fourth seal on the side close to the driving device and is capable of sealing the gap between the baffle and the third seal.
[0010] As a further improvement of the present invention, the fourth sealing member includes a sealing fixing seat fixedly connected to the third sealing member, a second sealing arm and a third sealing arm both of which are connected to the sealing fixing seat at one end, the other end of the second sealing arm abuts against the baffle, and the upper surface of the third sealing arm is higher than the lower surface of the moving knife assembly.
[0011] As a further improvement of the utility model, a fourth sealing arm facing the driving device is provided on the third sealing arm, the third sealing arm is vertically arranged, and the fourth sealing arm is horizontally arranged.
[0012] As a further improvement of the utility model, the third sealing member is provided with a buckle, the main frame is provided with a slot for the buckle to be engaged, one end of the third sealing member is hinged to the main frame, and the other end is engaged with the main frame through the buckle.
[0013] As a further improvement of the utility model, the inner side wall of the main frame is provided with a matching groove, the fixed knife assembly includes a fixed knife seat, the outer peripheral surface of the fixed knife seat is provided with a matching boss inserted into the matching groove so that the fixed knife seat can move up and down along the matching groove, and a first elastic member is connected between the fixed knife seat and the main frame to push the fixed knife assembly to reset upward.
[0014] As a further improvement of the utility model, the main frame is provided with a second groove for accommodating the first elastic member, the inner side wall of the second groove is provided with a mounting boss, and the first elastic member is provided with a mounting through hole for the mounting boss to be inserted.
[0015] The beneficial effects of the utility model are at least:
[0016] 1. The stubble is scattered around and falls into the accommodating chamber under the centrifugal force of the movable knife assembly. The setting of the baffle can prevent part of the stubble from entering the driving device. The setting of the sealing assembly also facilitates the cleaning of the stubble in the accommodating chamber and the transmission chamber.
[0017] 2. The first seal can prevent moisture or other liquids from entering the transmission cavity through the gap, thereby enhancing the waterproof performance of the shaver head; the setting of the fourth seal further enhances the sealing effect and prevents stubble from falling out of the second through hole.
[0018] 3. The arrangement of the deformation through hole can enhance the deformation when flushing and cleaning, thereby increasing the water inlet or outlet. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] Figure 1It is a structural schematic diagram of the utility model;
[0020] Figure 2 It is a structural schematic diagram of the utility model from another angle;
[0021] Figure 3 It is a structural explosion diagram of the utility model;
[0022] Figure 4 It is a cross-sectional view of the first embodiment of the utility model;
[0023] Figure 5 It is a cross-sectional view of a second embodiment of the utility model;
[0024] Figure 6 It is a structural explosion diagram of the utility model from another angle. DETAILED DESCRIPTION
[0025] The technical solution of the utility model will be clearly and completely described below in conjunction with the accompanying drawings.
[0026] Reference Figure 1-6 The utility model proposes a rotary shaver head, comprising a main frame 1, a fixed blade assembly 2 connected to the main frame 1 and having a fixed blade 22, and a movable blade assembly 3 having a movable blade 31 and located below the fixed blade assembly 2. A baffle 11 is provided in the main frame 1 so that the cavity inside the main frame 1 is divided into a receiving cavity 12 and a transmission cavity 13. The shaver head also includes a driving device 4 that can drive the movable blade assembly 3 to rotate and is located in the transmission cavity 13. A first through hole 121 communicating with the outside is provided on the inner side wall of the receiving cavity 12, and a second through hole 131 communicating with the outside is provided on the inner side wall of the transmission cavity 13. The shaver head also includes a sealing assembly 5 that is detachably connected to the inner side wall of the first through hole 121 and the inner side wall of the second through hole 131.
[0027] The stubble is scattered around and falls into the accommodating chamber 12 under the action of the centrifugal force of the movable blade assembly 3. The setting of the baffle 11 can prevent part of the stubble from entering the driving device 4. The setting of the sealing assembly 5 also facilitates the cleaning of the stubble in the accommodating chamber 12 and the transmission chamber 13. It is only necessary to remove the sealing assembly 5 and flush water into the first through hole 121 and the second through hole 131.
[0028] Reference Figure 3 and 4A first sealing member 6 is fixed on the baffle 11, which can seal the gap between the baffle 11 and the movable blade assembly 3. The first sealing member 6 and the baffle 11 are both annular. The annular first sealing member 6 fits tightly against the contact surface between the baffle 11 and the movable blade assembly 3, and can form an effective barrier to prevent beard debris generated during shaving from entering the transmission chamber 13 where the drive device 4 is located through the gap between the baffle 11 and the movable blade assembly 3, thereby keeping the drive device 4 clean. In addition to blocking beard debris, the first sealing member 6 can also prevent moisture or other liquids from entering the transmission chamber through the gap, thereby enhancing the waterproof performance of the razor head.
[0029] Reference Figure 3 and 4 The first sealing member 6 comprises a sealing fixing seat 61 fixedly connected to the baffle 11 and a first sealing arm 62, one end of which is connected to the sealing fixing seat 61 and the other end of which is abutted against the movable knife assembly 3; the first sealing fixing seat 61 is firmly installed on the baffle 11 to ensure the stability of the position of the first sealing member 6; one end of the first sealing arm 62 is connected to the sealing fixing seat and the other end is directly abutted against the movable knife assembly 3, forming a dynamic sealing structure, which can always maintain good contact and sealing effect during the rotation of the movable knife assembly 3, and effectively prevent shaving debris, water vapor and other impurities from entering the transmission chamber 13 of the razor head; and the first sealing arm 62 can adjust the angle accordingly following the rotation of the movable knife assembly 3.
[0030] Reference Figure 3 and Figure 4 The baffle 11 is provided with a first groove 111 for installing the sealing fixing seat 61, the first sealing arm 62 gradually rises in the direction away from the sealing fixing seat 61, and the first sealing arm 62 is provided with a plurality of deformation through holes 621; the deformation through holes 621 on the first sealing arm 62 enable the first sealing arm 62 to increase its deformation when subjected to the pressure and vibration applied by the movable knife assembly 3, for example, the deformation is enhanced when used for flushing cleaning, thereby increasing the water intake or water output.
[0031] Reference Figure 2 , Figure 3 and Figure 6 The sealing assembly 5 includes a second sealing member 51 detachably sealingly connected to the inner wall of the first through hole 121 and a third sealing member 52 detachably connected to the inner wall of the second through hole 131, referring to Figure 5 The third sealing member 52 is fixedly connected to a fourth sealing member 7 on the side close to the driving device 4 and capable of sealing the gap between the baffle 11 and the third sealing member 52; the setting of the fourth sealing member 7 fills the gap between the baffle 11 and the third sealing member 52, further enhancing the sealing effect and preventing stubble from falling out of the second through hole 131.
[0032] The second sealing member 51 is a rubber plug.
[0033] Reference Figure 5 The fourth sealing member 7 includes a sealing fixing seat 61 fixedly connected to the third sealing member 52, a second sealing arm 71 and a third sealing arm 72, both ends of which are connected to the sealing fixing seat 61, the other end of the second sealing arm 71 abuts against the baffle 11, and the upper surface of the third sealing arm 72 is higher than the lower surface of the moving knife assembly 3; the upper surface of the third sealing arm 72 is higher than the lower surface of the moving knife assembly 3, thereby reducing the entry of debris into the driving device 4 and the moving knife assembly 3.
[0034] Reference Figure 5 The third sealing arm 72 is provided with a fourth sealing arm 721 facing the driving device 4, the third sealing arm 72 is vertically arranged, and the fourth sealing arm 721 is horizontally arranged; the third sealing arm 72 effectively blocks the stubble entering the driving device 4 in the vertical direction, and the fourth sealing arm 721 performs a second blocking on the stubble in the horizontal direction, effectively reducing the amount of stubble entering.
[0035] Reference Figure 3 The third sealing member 52 is provided with a buckle 521, and the main frame 1 is provided with a slot for the buckle 521 to be engaged. One end of the third sealing member 52 is hinged on the main frame 1, and the other end is engaged with the main frame 1 through the buckle 521. The close combination of the buckle 521 and the slot ensures a stable and reliable connection, and even in an environment where the shaver head vibrates and rotates frequently, it can maintain good sealing performance and avoid loosening. It is also convenient for flushing and cleaning. When cleaning is needed, you only need to unlock the buckle connection.
[0036] Reference Figure 3 The inner side wall of the main frame 1 is provided with a matching groove 14, and the fixed knife assembly 2 includes a fixed knife seat 21. The outer peripheral surface of the fixed knife seat 21 is provided with a matching boss 211 inserted into the matching groove 14 so that the fixed knife seat 21 can move up and down along the matching groove 14. A first elastic member 8 is connected between the fixed knife seat 21 and the main frame 1 to push the fixed knife assembly 2 to reset upward; the upper and lower adjustment of the fixed knife assembly 2 and the movable knife assembly 3 in the main frame 1 is realized.
[0037] Reference Figure 3 A second elastic member is connected between the driving device 4 and the movable knife assembly 3 to drive the movable knife assembly 3 to fit the fixed knife assembly 2. The driving device 4 is connected to the movable knife assembly 3 through a snap-fit structure to realize transmission. A transmission groove is provided at the bottom of the driving device 4 for inserting the power source on the shaver body.
[0038] Reference Figure 3The main frame 1 is provided with a second groove 15 for accommodating the first elastic member 8, and a mounting boss 151 is provided on the inner side wall of the second groove 15, and the first elastic member 8 is provided with a mounting through hole 81 for the mounting boss 151 to be inserted; the first elastic member 8 is accurately installed in the position and firmly fixed, which effectively prevents the elastic member from shifting or failing during the operation of the shaver head, thereby ensuring the stability and reliability of the operation of the shaver head.
Claims
1. A rotary shaver head, characterized in that: The invention comprises a main frame (1), a fixed knife assembly (2) connected to the main frame (1) and having a fixed blade (22), and a movable knife assembly (3) having a movable blade (31) and located below the fixed knife assembly (2); a stopper (11) is provided inside the main frame (1) so that the cavity inside the main frame (1) is divided into a receiving cavity (12) and a transmission cavity (13); the cutter head further comprises a driving device (4) capable of driving the movable knife assembly (3) to rotate and located in the transmission cavity (13); a first through hole (121) communicating with the outside is provided on the inner side wall of the receiving cavity (12); a second through hole (131) communicating with the outside is provided on the inner side wall of the transmission cavity (13); and the cutter head further comprises a sealing assembly (5) detachably connected to the inner side wall of the first through hole (121) and the inner side wall of the second through hole (131).
2. A rotary shaver head according to claim 1, characterized in that: A first sealing member (6) capable of sealing a gap between the baffle plate (11) and the movable knife assembly (3) is fixed on the baffle plate (11); the first sealing member (6) and the baffle plate (11) are annular.
3. A rotary shaver head according to claim 2, characterized in that: The first sealing member (6) comprises a sealing fixing seat (61) fixedly connected to the stop platform (11) and a first sealing arm (62) with one end connected to the sealing fixing seat (61) and the other end abutting against the movable knife assembly (3).
4. A rotary shaver head according to claim 3, characterized in that: The stop platform (11) is provided with a first groove (111) for installing a sealing fixing seat (61), the first sealing arm (62) gradually rises in a direction away from the sealing fixing seat (61), and the first sealing arm (62) is provided with a plurality of deformation through holes (621).
5. A rotary shaver head according to claim 1, characterized in that: The sealing assembly (5) comprises a second sealing member (51) detachably sealingly connected to the inner side wall of the first through hole (121) and a third sealing member (52) detachably connected to the inner side wall of the second through hole (131); the third sealing member (52) is fixedly connected to a fourth sealing member (7) on a side close to the drive device (4) and capable of sealing a gap between the baffle (11) and the third sealing member (52).
6. A rotary shaver head according to claim 5, characterized in that: The fourth sealing member (7) comprises a sealing fixing seat (61) fixedly connected to the third sealing member (52), a second sealing arm (71) and a third sealing arm (72) both ends of which are connected to the sealing fixing seat (61), the other end of the second sealing arm (71) abuts against the stopper (11), and the upper surface of the third sealing arm (72) is higher than the lower surface of the movable knife assembly (3).
7. A rotary shaver head according to claim 6, characterized in that: The third sealing arm (72) is provided with a fourth sealing arm (721) facing the driving device (4); the third sealing arm (72) is arranged vertically, and the fourth sealing arm (721) is arranged horizontally.
8. A rotary shaver head according to claim 5, characterized in that: The third sealing member (52) is provided with a buckle (521), and the main frame (1) is provided with a slot for the buckle (521) to be engaged, and one end of the third sealing member (52) is hinged to the main frame (1), and the other end is engaged to the main frame (1) via the buckle (521).
9. A rotary shaver head according to claim 1, characterized in that: The inner side wall of the main frame (1) is provided with a matching groove (14); the fixed knife assembly (2) comprises a fixed knife seat (21); the outer peripheral surface of the fixed knife seat (21) is provided with a matching boss (211) inserted into the matching groove (14) so that the fixed knife seat (21) can move up and down along the matching groove (14); and a first elastic member (8) is connected between the fixed knife seat (21) and the main frame (1) so as to push the fixed knife assembly (2) to reset upward.
10. A rotary shaver head according to claim 9, characterized in that: The main frame (1) is provided with a second groove (15) for accommodating the first elastic member (8), the inner side wall of the second groove (15) is provided with a mounting boss (151), and the first elastic member (8) is provided with a mounting through hole (81) for the mounting boss (151) to be inserted.