Shaver with tool bit assembly convenient to replace
By designing the interlocking mechanism between the locking hook and the interlocking limit shrapnel in the shaver, the problem of the electric shaver head falling off or shaking is solved, achieving a more stable shaving experience and a more convenient head replacement process.
Patent Information
- Application Number
- CN202420615367.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-28
- Publication Date
- 2025-03-28
- Estimated Expiration
- 2034-03-28
AI Technical Summary
Existing electric shaver is prone to the problem of the cutter head falling off or shaking during use, resulting in inconvenience in use and safety hazards.
The interlocking mechanism between the locking hook and the interlocking limit shrapnel is designed in the shaver mount and the blade head, ensuring the firmness of the blade head installation and enhancing the reliability and durability of the interlocking through the same design with the inclination angle.
Effectively prevents the blade head from accidentally falling off or displaced during use, reducing the possible risk of injury, providing a more stable shaving experience, and simplifying the removal and cleaning process of the blade head.
Smart Images

Figure CN222680987U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of shavers, in particular to a shaver with a conveniently replaceable cutter head assembly. Background Art
[0002] Electric shavers are divided into two types: rotary and reciprocating. Rotary electric shavers shave beards by rotating the built-in blades, which are suitable for people with softer beards; reciprocating electric shavers shave beards through high-speed reciprocating motion of the blades, which are suitable for people with thicker and harder beards.
[0003] After using an electric shaver, the cutter head needs to be cleaned and maintained regularly to ensure the performance and life of the shaver. Electric shavers are usually equipped with release buttons or mechanisms, which are usually located near the fixed base. Users can release the old cutter head and install a new cutter head by pressing or operating them. The release button or mechanism is usually a small part that is easy to lose or damage, and is prone to shaking or loosening. In addition, the location of the button or mechanism may lead to accidental misoperation, such as accidentally pressing the button during shaving and causing the cutter head to fall off. This may cause inconvenience in use or safety hazards. Utility Model Content
[0004] The purpose of the utility model is to provide a shaver with a convenient replacement of the cutter head assembly, so as to solve the problems raised in the above background technology.
[0005] To achieve the above object, the utility model provides the following technical solution: a shaver with convenient replacement of the blade head assembly, comprising:
[0006] case;
[0007] A mounting seat, the mounting seat is placed on the top of the shell, the interior of the mounting seat is clamped with a limit cover, and the middle of the limit cover is provided with an interlocking limit spring sheet;
[0008] The cutter head is clamped in the inside of the mounting seat, and the cutter head includes a fixing frame clamped in the inside of the mounting seat, and the bottom of the fixing frame is provided with a locking hook interlocked with the interlocking limit spring sheet, and one side of the bottom of the locking hook is composed of two inclined connecting slopes.
[0009] Preferably, the end of the interlocking limiting spring piece is a regular triangle structure, and the inclination angle of the connecting slope is the same as the slope angle of the triangle structure.
[0010] Preferably, a connecting bracket is clamped on the outer side of the fixing bracket, a blade is slidably connected inside the connecting bracket, and a knife protection net is installed above the blade and between the connecting bracket and the fixing bracket.
[0011] Preferably, an extrusion protrusion is fixedly connected to one side of the locking hook, and a protrusion locking groove interlocking with the extrusion protrusion is provided on the side of the connecting bracket.
[0012] Preferably, a fixing cover is clamped on the top of the fixing frame, and a heating element is installed between the fixing frame and the fixing cover.
[0013] Preferably, a positioning groove is provided on the side of the extrusion protrusion, and a protruding hook interlocking with the positioning groove is provided inside the fixing cover.
[0014] Compared with the prior art, the beneficial effects of the utility model are: the interlocking mechanism of the locking hook and the interlocking limit spring piece ensures the firmness of the installation of the razor head, prevents accidental falling off or displacement during use, and thus reduces the possible risk of injury; the design of the locking hook and the interlocking limit spring piece makes the cutter head very stable when installed on the seat, without shaking or loosening, providing a more comfortable and stable shaving experience, and when disassembling and cleaning the cutter head, only a simple upward pulling action is required, without the need to use additional tools or perform complicated operations, thereby improving the convenience and efficiency of replacing the cutter head. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 It is a schematic diagram of the structure of the utility model;
[0016] Figure 2 This is a schematic diagram of the structure of the limit cover of the utility model;
[0017] Figure 3 This is a schematic diagram of the structure of the cutter head of the utility model;
[0018] Figure 4 It is an enlarged view of point A of the present utility model.
[0019] In the figure: 1. Shell; 2. Mounting seat; 3. Cutter head; 4. Connecting bracket; 5. Cutter protection net; 6. Fixing bracket; 7. Locking hook; 8. Heating element; 9. Fixing cover; 10. Limiting cover; 11. Interlocking limiting spring piece; 12. Positioning groove; 13. Raised hook; 14. Extrusion protrusion; 15. Raised locking groove; 16. Connecting slope. DETAILED DESCRIPTION
[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0021] See also Figure 1 ,2 As shown in Figures 3 and 4, the utility model provides a technical solution: a shaver with a convenient blade head assembly replacement, comprising: a shell 1 with a battery, a driving motor and a control circuit board arranged therein; a mounting base 2 is mounted on the top of the shell 1 by means of screws, a limit cover 10 is clamped inside the mounting base 2, and an interlocking limit spring sheet 11 is arranged in the middle of the limit cover 10; a blade head 3 is clamped inside the mounting base 2, and the blade head 3 comprises a fixing frame 6 clamped inside the mounting base 2, a locking hook 7 interlocked with the interlocking limit spring sheet 11 is arranged at the bottom of the fixing frame 6, and one side of the bottom of the locking hook 7 is composed of two inclined connecting slopes 16.
[0022] It should be noted that the interlocking limit spring piece 11 of the utility model is a plastic spring piece separated from the middle part of the limit cover 10, and the two connecting inclined surfaces 16 and their connection make the bottom side edges of the lock hook 7 constitute an isosceles trapezoidal structure with inclined surface structures on the upper and lower sides. The mounting seat 2 has corresponding slots for installing the limit cover 10 on both sides. The limit cover 10 is pressed inside the mounting seat 2, and then the cutter head 3 is pressed downward toward the inside of the mounting seat 2, so that the lock hook 7 and the interlocking limit spring piece 11 are squeezed, so that the top of the lock hook 7 squeezes the interlocking limit spring piece 11 inward, and when the connecting inclined surface 16 located on the upper side of one side of the lock hook 7 is moved to the bottom of the interlocking limit spring piece 11, under the elastic resetting action of the interlocking limit spring piece 11, the two interlocking limit spring pieces 11 squeeze and fix the lock hook 7 from both ends. When disassembling, the two ends of the fixing frame 6 are removed. Pinch the sides tightly and then pull upwards. Under the squeezing action of the inclined surface of the connecting inclined surface 16 on the top of the locking hook 7, the interlocking limit spring piece 11 moves inwards. When the interlocking limit spring piece 11 is separated from the locking hook 7, the entire cutter head 3 is pulled out from the mounting seat 2 to complete the disassembly. The interlocking mechanism of the locking hook 7 and the interlocking limit spring piece 11 ensures the firmness of the installation of the razor head to prevent accidental falling off or displacement during use, thereby reducing the possible risk of injury. The design of the locking hook and the interlocking limit spring piece makes the cutter head very stable when installed on the seat, without shaking or loosening, providing a more comfortable and stable shaving experience. When disassembling and cleaning the cutter head, only a simple upward pulling action is required, without the need to use additional tools or perform complicated operations, thereby improving the convenience and efficiency of replacing the cutter head.
[0023] See also Figure 2 , 3 As shown in FIG. 4 , the end of the interlocking limit spring piece 11 is a regular triangle structure, and the inclination angle of the connecting inclined surface 16 is the same as the inclined surface angle of the triangular structure.
[0024] It should be noted that the connecting bevel of the lock hook of the utility model matches the triangular structure of the interlocking limit spring piece, ensuring a good fit between the two, so that the interlocking limit spring piece can effectively fix the lock hook, and through the design of the same inclination angle, the lock hook can be completely embedded in the triangular structure of the interlocking limit spring piece to form a tighter connection, thereby enhancing the stability between the cutter head and the seat, and the design of the same inclination angle ensures that the contact area between the lock hook and the interlocking limit spring piece is maximized, thereby improving the reliability and durability of the interlocking, and making the razor safer and more reliable during use.
[0025] See also Figure 3 As shown, a connecting bracket 4 is clamped on the outer side of the fixing bracket 6, a blade is slidably connected inside the connecting bracket 4, a knife protection net 5 is installed above the blade and between the connecting bracket 4 and the fixing bracket 6, an extrusion protrusion 14 is fixedly connected to one side of the locking hook 7, and a protruding locking groove 15 interlocking with the extrusion protrusion 14 is provided on the side of the connecting bracket 4.
[0026] It should be noted that when the fixing frame 6 of the utility model is assembled with the connecting bracket 4, the fixing frame 6 is pressed into the inside of the connecting bracket 4 so that the positioning groove 12 opens the connecting bracket 4 to both sides. When the top of the extrusion protrusion 14 is located in the protrusion locking groove 15, the connecting bracket 4 is clamped on the top of the extrusion protrusion 14 under the reset action of the connecting bracket 4, so that the fixing frame 6 and the connecting bracket 4 are clamped, and the tool protection net 5 is squeezed and fixed above the blade through the fixing frame 6. When the razor is started, the current is sent to the motor to make it rotate. The rotation of the motor is transmitted to a mechanism called an eccentric wheel (or eccentric shaft). The eccentric wheel is a circular wheel eccentrically mounted on the shaft. When the motor rotates, the eccentric wheel will produce eccentric motion, that is, the axis is not at the center of the wheel. The eccentric wheel mechanism is connected to the blade through a connecting rod or other mechanical device. These connections enable the blade to follow the movement of the eccentric wheel. Due to the movement of the eccentric wheel, the blade connected to it will produce high-speed reciprocating motion. This movement causes the blade to move back and forth at the bottom of the protection net. The protective net covers the top of the blade. When the beard enters the protective net, the reciprocating blade will capture and cut the beard.
[0027] See also Figure 3 , 4 As shown, a fixing cover 9 is clamped on the top of the fixing frame 6, a heating element 8 is installed between the fixing frame 6 and the fixing cover 9, a positioning groove 12 is opened on the side of the extrusion protrusion 14, and a protruding hook 13 interlocking with the positioning groove 12 is provided inside the fixing cover 9.
[0028] It should be noted that, when fixing the heating element 8, the utility model places the heating element 8 on the top of the fixing frame 6, and then presses the fixing cover 9 to the top of the fixing frame 6. Because the raised hook 13 is a direct triangular structure and the inclined surface is located on the inner side of the fixing cover 9, during installation, under the action of extrusion, the fixing cover 9 is pushed up and stretched to both sides. When the raised hook 13 corresponds to the position of the positioning groove 12, under the elastic force of the fixing cover 9, the raised hook 13 is stuck in the positioning groove 12, thereby completing the clamping.
[0029] In the description of the present invention, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "the other end", "upper", "one side", "top", "inside", "front", "center", "both ends" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.
[0030] In addition, the terms "first", "second", "third" and "fourth" are used for descriptive purposes only and are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, the features defined as "first", "second", "third" and "fourth" may explicitly or implicitly include at least one of such features.
[0031] In the present utility model, unless otherwise clearly stipulated and limited, the terms such as "installation", "setting", "connection", "fixation" and "screw-on" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in the utility model according to the specific circumstances.
[0032] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A shaver with a convenient replacement of the blade assembly, characterized in that: include: Housing (1); A mounting seat (2), the mounting seat (2) being placed on the top of the housing (1), the interior of the mounting seat (2) being clamped with a limit cover (10), and an interlocking limit spring sheet (11) being provided in the middle of the limit cover (10); A cutter head (3), the cutter head (3) being clamped in the interior of a mounting seat (2), the cutter head (3) comprising a fixing frame (6) clamped in the interior of the mounting seat (2), a locking hook (7) interlocked with an interlocking limit spring sheet (11) being provided at the bottom of the fixing frame (6), and one side of the bottom of the locking hook (7) being composed of two inclined connecting bevels (16).
2. A shaver with a conveniently replaceable blade assembly according to claim 1, characterized in that: The end of the interlocking limiting spring sheet (11) is an equilateral triangle structure, and the inclination angle of the connecting inclined surface (16) is the same as the inclined surface angle of the triangle structure.
3. The shaver with conveniently replaceable blade head assembly according to claim 1, characterized in that: A connecting bracket (4) is clamped on the outer side of the fixing bracket (6), a blade is slidably connected inside the connecting bracket (4), and a knife protection net (5) is installed above the blade and between the connecting bracket (4) and the fixing bracket (6).
4. A shaver with conveniently replaceable blade head assembly according to claim 3, characterized in that: A pressing protrusion (14) is fixedly connected to one side of the locking hook (7), and a protrusion locking groove (15) interlocking with the pressing protrusion (14) is provided on the side of the connecting bracket (4).
5. A shaver with conveniently replaceable blade head assembly according to claim 4, characterized in that: A fixing cover (9) is clamped on the top of the fixing frame (6), and a heating element (8) is installed between the fixing frame (6) and the fixing cover (9).
6. A shaver with conveniently replaceable blade head assembly according to claim 5, characterized in that: A positioning groove (12) is provided on the side of the extrusion protrusion (14), and a protrusion hook (13) interlocking with the positioning groove (12) is provided inside the fixing cover (9).