Cutter moving mechanism of cutter head of body hair cutter
By using the lower folding connecting piece to form a limit connection structure with the driver in the tool actuator, the deformation and noise problems of parts caused by riveting or threaded connection in the prior art are solved, and more stable, more convenient assembly and more efficient performance are achieved.
Patent Information
- Application Number
- CN202421533035.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-01
- Publication Date
- 2025-05-06
- Estimated Expiration
- 2034-07-01
AI Technical Summary
The riveting or threaded connection of existing reciprocating razors causes deformation of parts, increasing the fault point, and the connection occupies a large internal space, low assembly consistency and high noise.
The lower-folding connecting piece is used to form a limit connection structure with the left and right and outer side walls of the driver to form a snap or hook connection, so as to realize the connection of the movable knife on the movable knife seat, reducing the number of parts and assembly complexity.
It realizes stable connection and easy assembly of the tool-moving mechanism, reduces messy and noise in the internal structure, and improves the overall performance and user experience of the product.
Smart Images
Figure CN222831874U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a cutter head for a body hair cutter, in particular to a cutter head for a reciprocating body hair cutter. Background Art
[0002] The reciprocating razors on the market include a blade net, a plastic support seat and a moving blade assembly. The moving blade is connected to the moving blade seat by riveting or threading. Riveting or threading connections easily cause inevitable deformation of components. Especially after long-term use, the probability of failure or damage points at the deformation site is higher than that at other sites. At the same time, riveting or threading connections occupy a large internal space, the product output assembly force consistency is low, the internal structure is messy, and the noise is loud. Summary of the invention
[0003] The utility model provides a moving knife mechanism of a body hair cutter head which has stable connection and convenient assembly.
[0004] In order to solve the above technical problems, the utility model adopts the following technical solutions: a moving knife mechanism of a body hair razor head, the knife head includes a fixed knife mechanism and a moving knife mechanism installed in the fixed knife mechanism, the moving knife mechanism includes a moving knife and a moving knife seat which are placed in the fixed knife mechanism of the knife head and can reciprocate left and right relative to the fixed knife, the lower part of the moving knife seat is provided with a driver connected to the transmission mechanism, the moving knife is symmetrically provided with at least one pair of downward folding connecting pieces which are integrated with the moving knife, and the downward folding connecting piece is provided with a limiting connecting structure which is snap-connected or buckled with the left and right outer walls of the driver.
[0005] As an improvement: the movable knife is provided with a limiting hole which is limitedly connected to the movable knife seat, and the movable knife is provided with two downward folding connecting pieces, which are formed by bending downward and extending from the left and right edges of the limiting hole respectively.
[0006] As an improvement: the movable knife includes a long movable knife supporting surface, and the front and rear edges of the supporting surface are bent obliquely upward to form two oblique short side knives standing opposite to each other inward, and the cutting edges are continuously distributed on the oblique short side knives, and there is a spacing between the free ends of the front and rear oblique short side knives.
[0007] As an improvement: a supporting spring sheet is further provided on the moving knife seat below the moving knife, and the upper surface of the fixed knife bracket of the fixed knife mechanism has a plurality of laterally extending ridges, and the two ends of the supporting spring sheet are crimped on the ridges. The supporting spring sheet elastically supports the moving knife mechanism to be tightly attached to the fixed knife mechanism and can reciprocate left and right relative to the fixed knife mechanism.
[0008] The beneficial effects provided by the utility model are as follows: a limit connection structure is formed by a clamping or snapping connection between the downward folded connection piece and the left and right outer side walls of the driver to realize the connection of the moving knife to the moving knife seat, symmetrical balance, easy to realize, and convenient to assemble, without the need for other parts or riveted threaded parts, with few parts, convenient assembly, reasonable and concise internal structure, and small and compact size.
[0009] The utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS
[0010] Figure 1 The utility model is a schematic diagram of a cutter head structure of an embodiment of the body-moving cutter mechanism.
[0011] Figure 2 yes Figure 1 Exploded view of.
[0012] Figure 3 yes Figure 1 Schematic diagram of the structure of the moving knife mechanism and the fixed knife mechanism. DETAILED DESCRIPTION
[0013] In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as a limitation of the present invention. In the description of the present invention, it should be understood that the terms "connected", "connected", "fixed" and the like used in the present invention should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or a welding connection; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0014] like Figure 1 , Figure 2 , Figure 3As shown, an embodiment of a moving knife mechanism of a body hair cutter head of the utility model, the cutter head includes a fixed knife mechanism, a moving knife mechanism installed in the fixed knife mechanism, the moving knife mechanism includes a moving knife 3 and a moving knife seat 4 which are placed in the fixed knife mechanism of the cutter head and can reciprocate left and right relative to the fixed knife 1, the moving knife seat 4 has a driver 41 connected to the transmission mechanism at the bottom, the moving knife 3 is symmetrically provided with at least one pair of downward folding connecting pieces 32 which are integrated with the moving knife, and the downward folding connecting pieces 32 are provided with a limiting connection structure which is clamped or buckled with the left and right outer walls of the driver 41. The processing and assembly are very convenient, and the left-right symmetry is very good. The moving knife mechanism does not require other parts or riveted threaded parts, has few parts, is easy to assemble, has a reasonable and concise internal structure, and is compact.
[0015] The movable knife 3 is provided with a limiting hole 33 which is limitedly connected with the movable knife seat 4. The movable knife is provided with two folded-down connecting pieces, which are respectively bent downward and extended from the left and right edges of the limiting hole. The two folded-down connecting pieces are combined with the limiting hole to realize the connection of the movable knife on the movable knife seat. Due to the limited connection between the folded-down connecting piece 32 and the left and right outer side walls of the driver 41, a certain floating space can be provided in the vertical direction. Of course, it can also be a tight fit relationship, and the buckle length can be set according to the needs. The two folded-down connecting pieces can be directly stamped, which is convenient to process and saves materials.
[0016] The movable knife 3 of the present embodiment adopts a "U"-shaped knife with an oblique blade, including a long movable knife supporting surface, and the front and rear edges of the supporting surface are respectively bent obliquely upward to form two oblique short side knives 31 facing inward and opposite to each other, and the cutting blades are continuously distributed on the oblique short side knives. There is a spacing between the free ends of the front and rear oblique short side knives, and the two oblique short side knives are partially exposed from the hair entry grooves on the two oblique surfaces of the fixed knife, that is, an open but not surrounded cutting space is formed above the front and rear oblique short side knives, which is convenient for long curly hair to enter and cut neatly without pulling, thereby improving skin feel, and the cut hair can be directly poured out from the end holes at both ends of the knife head without disassembling the inside of the knife head, which is more convenient, especially when there is a lot of hair, cleaning is more timely, and the operation efficiency is higher.
[0017] In order to improve the close fit between the moving knife mechanism and the fixed knife mechanism and improve the working efficiency, in this embodiment, a supporting spring piece 6 is further provided on the moving knife seat 4 below the moving knife, and the upper surface of the fixed knife bracket has a plurality of laterally extending ridges 25, and the two ends of the supporting spring piece are crimped on the ridges 25, and the upper surface of the ridges 25 is an arc surface, that is, the supporting spring piece 6 is in line contact with the ridges 25, which reduces friction, and the left and right movement of the supporting spring piece on the fixed knife bracket is smoother, thereby improving the motor efficiency. The supporting spring piece elastically supports the moving knife mechanism to be close to the fixed knife mechanism and can reciprocate left and right relative to the fixed knife mechanism.
[0018] This embodiment is to realize the whole machine without riveting and screw parts, so that the internal structure is simpler and convenient for assembly. The fixed knife bracket 2 is formed by two connecting units staggered and fixed on the left and right. The connecting unit includes a base 21 that is generally in the shape of a "7", a fixing ring 22 that is protruded at the end of the base 21 and adapted to the end of the fixed knife, and the base 21 that is generally in the shape of a "7" has a connecting long arm and a connecting short arm. The two connecting units are staggered and fixed by connecting devices on the connecting long arm and the connecting short arm, and a central through hole 23 is formed in the center of the fixed knife bracket 2 for the lower part of the moving knife seat to pass through. The "7"-shaped design can unify the left and right connecting units, that is, the left and right connecting units are not divided into left and right, and can be staggered and assembled. The central through hole is staggered and plugged, which is convenient to install, simple in structure, simplified in processing and saves materials.
[0019] Although the utility model has been disclosed as above in terms of specific embodiments, it is not intended to limit the utility model. Any technician in this field can make slight changes and modifications without departing from the spirit and scope of the utility model. Therefore, the scope of protection of the utility model should be determined by the scope of the attached claims.
Claims
1. A moving knife mechanism of a body hair razor head, the head comprising a fixed knife mechanism and a moving knife mechanism installed in the fixed knife mechanism, the moving knife mechanism comprising a moving knife (3) placed in the fixed knife mechanism of the head and capable of reciprocating relative to the fixed knife (1), and a moving knife seat (4), the lower part of the moving knife seat (4) having a driver (41) connected to the transmission mechanism, characterized in that: The movable knife (3) is symmetrically provided with at least one pair of downwardly folded connecting pieces (32) integrally formed with the movable knife, and the downwardly folded connecting pieces (32) are provided with a limit connection structure that is snap-fitted or buckled with the left and right outer side walls of the driver (41).
2. The moving blade mechanism of the body hair razor head according to claim 1, characterized in that: The movable knife (3) is provided with a limiting hole (33) which is connected to the movable knife seat (4) in a limiting manner. The movable knife is provided with two downward folding connecting pieces, which are formed by bending downward and extending from the left and right edges of the limiting hole respectively.
3. The moving blade mechanism of the body hair razor head according to claim 1 or 2, characterized in that: The movable knife (3) comprises a long movable knife support surface, and the front and rear edges of the support surface are bent obliquely upward to form two oblique short side knives (31) facing inward and opposite to each other, the cutting edges of the oblique short side knives are continuously distributed, and there is a gap between the free ends of the front and rear oblique short side knives.
4. The moving blade mechanism of the body hair razor head according to claim 1 or 2, characterized in that: A supporting spring sheet (6) is further provided on the movable knife seat (4) below the movable knife. The upper surface of the fixed knife bracket of the fixed knife mechanism has a plurality of transversely extending ridges (25). Both ends of the supporting spring sheet are pressed against the ridges (25). The supporting spring sheet elastically supports the movable knife mechanism to be closely attached to the fixed knife mechanism and can reciprocate left and right relative to the fixed knife mechanism.
5. The moving blade mechanism of the body hair razor head according to claim 3, characterized in that: A supporting spring sheet (6) is further provided on the movable knife seat (4) below the movable knife. The upper surface of the fixed knife bracket of the fixed knife mechanism has a plurality of transversely extending ridges (25). Both ends of the supporting spring sheet are pressed against the ridges (25). The supporting spring sheet elastically supports the movable knife mechanism to be closely attached to the fixed knife mechanism and can reciprocate left and right relative to the fixed knife mechanism.