Anti-loose mounting structure of fixed cutter mounting rack of electric hair cutter

Abstract

The utility model discloses an anti-loose installation structure of an electric hair cutter fixed cutter installation frame, which comprises a machine body and a cutter head assembly, the cutter head assembly is arranged at the front end of the machine body, the cutter head assembly comprises a fixed cutter installation frame and a fixed blade, the fixed blade is fixedly connected to the fixed cutter installation frame, a guide rail is arranged at the front end of the machine body, and the fixed cutter installation frame is in sliding connection with the guide rail. An elastic piece is arranged between the guide rail and the stationary knife installation frame and always exerts elastic acting force on the stationary knife installation frame, and the direction of the elastic acting force is perpendicular to the sliding direction of the stationary knife installation frame along the guide rail, so that the stationary knife installation frame is always tightly attached to the inner side wall of the guide rail. The elastic piece is arranged between the fixed cutter mounting frame and the guide rail, the dimensional tolerance of the guide rail and the fixed cutter mounting frame is compensated, when the fixed cutter mounting frame is mounted on the guide rail, the fixed cutter mounting frame is always tightly attached to the inner side wall of the guide rail, a gap is not prone to occurring between the fixed cutter mounting frame and the inner side wall of the guide rail, and the fixed cutter mounting frame operates stably; therefore, the whole cutter head assembly operates stably, and the working performance of the electric hair cutter is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of electric hair clippers, in particular to an anti-loosening installation structure of a fixed blade installation frame of an electric hair clipper. Background Art

[0002] With the rapid development of the hairdressing market, the sales volume of hair clippers has increased significantly, and users are increasingly pursuing high-quality, easy-to-operate hair clippers. For existing hair clippers, they include a hair clipper body, and guide rails are respectively provided on both sides of the top of the body. A fixed blade mounting frame is slidably provided on the guide rails. The fixed blade mounting frame can slide on the guide rails, and a fixed blade is fixedly connected to the top of the fixed blade mounting frame by screws. An adjusting wrench is rotatably provided on one side of the fixed blade mounting frame. The fixed blade mounting frame is controlled to move relative to the guide rail by adjusting the wrench to change the front and rear position of the fixed blade, thereby achieving the effect of controlling the length of haircut.

[0003] For example, a gear adjustment mechanism and electric hair clipper disclosed in a Chinese utility model patent (publication number: CN213106940U) include a guide rail provided at the top of a body, a lower blade holder (i.e., a fixed blade mounting frame) is slidably mounted on the guide rail, a fixed blade is connected to the top of the lower blade holder, and an adjustment wrench is provided on one side of the body, the adjustment wrench can rotate relative to the lower blade holder and push the lower blade holder to slide along the guide rail. By rotating the adjustment wrench, the gear lever rotates with the adjustment wrench, and because the moving track of the gear lever is not an arc, the push rod connected to the adjustment wrench will push the lower blade holder to move forward and backward when the adjustment wrench rotates, thereby causing the fixed blade fixedly connected to the lower blade holder to move forward and backward, thereby changing the front-to-back distance between the fixed blade and the moving blade, thereby achieving the effect of controlling the length of haircut.

[0004] However, the gear adjustment mechanism and the electric hair clipper disclosed in the above-mentioned prior art inevitably have dimensional tolerances during the manufacturing of the guide rail and the lower blade holder at the top of the body. Under the influence of the dimensional tolerance, when the lower blade holder is installed on the guide rail, a gap is likely to appear between the lower blade holder and the inner wall of the guide rail, causing the lower blade holder to shake, thereby causing the entire blade head assembly to be unstable, resulting in looseness or tightness, or even noise during use, affecting the working performance of the electric hair clipper.

[0005] Therefore, it is necessary to improve the existing technology. Utility Model Content

[0006] The purpose of the utility model is to provide an anti-loosening installation structure for a fixed blade mounting frame of an electric hair clipper in view of the defects and shortcomings of the prior art, wherein an elastic member is arranged between the fixed blade mounting frame and a guide rail, so that the fixed blade mounting frame can run smoothly, thereby making the entire blade head assembly run stably, and there will be no looseness or tightness or even noise during use, thereby improving the working performance of the electric hair clipper.

[0007] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0008] A loose-proof mounting structure for a fixed blade mounting frame of an electric hair clipper comprises a body and a blade head assembly, wherein the blade head assembly is arranged at the front end of the body, the blade head assembly comprises a fixed blade mounting frame and a fixed blade, the fixed blade is fixedly connected to the fixed blade mounting frame, a guide rail is provided at the front end of the body, the fixed blade mounting frame is slidably connected to the guide rail, an elastic member is provided between the guide rail and the fixed blade mounting frame, the elastic member always applies an elastic force to the fixed blade mounting frame, the direction of the elastic force is perpendicular to the direction in which the fixed blade mounting frame slides along the guide rail, so that the fixed blade mounting frame always clings to the inner side wall of the guide rail.

[0009] Furthermore, the fixed knife mounting frame is provided with a bent portion extending inwardly, the fixed knife mounting frame is slidably matched with the guide rail via the bent portion, and the elastic member is disposed between the bent portion and the guide rail.

[0010] Furthermore, the elastic member is a bow-shaped spring piece.

[0011] Furthermore, the bow-shaped spring piece is provided with an arch bridge portion, and both ends of the arch bridge portion are extended with flat abutment portions, the arch bridge portion abuts against the fixed knife mounting frame, and the flat abutment portion abuts against the inner side wall of the guide rail.

[0012] Furthermore, the inner side wall of the guide rail is provided with a groove cooperating with the bow-shaped spring piece, and the bow-shaped spring piece is installed in the groove through the flat abutment portion.

[0013] Furthermore, the length of the groove is greater than the length of the bow-shaped spring piece, and the depth of the groove is less than the height of the bow-shaped spring piece.

[0014] Furthermore, an adjusting wrench for driving the fixed knife mounting frame to slide relative to the guide rail is provided on one side of the fuselage, and the elastic member is located on the other side of the fuselage corresponding to the adjusting wrench.

[0015] Furthermore, the elastic member is made of spring steel.

[0016] After adopting the above structure, the beneficial effects of the utility model are as follows: the anti-loosening installation structure of the fixed blade mounting frame of an electric hair clipper described in the utility model comprises a body and a blade head assembly, the blade head assembly is arranged at the front end of the body, the blade head assembly comprises a fixed blade mounting frame and a fixed blade, the fixed blade is fixedly connected to the fixed blade mounting frame, a guide rail is provided at the front end of the body, the fixed blade mounting frame is slidably connected to the guide rail, an elastic member is provided between the guide rail and the fixed blade mounting frame, the elastic member always applies an elastic force to the fixed blade mounting frame, the direction of the elastic force is perpendicular to the direction in which the fixed blade mounting frame slides along the guide rail, so that the fixed blade mounting frame is always close to the inner side wall of the guide rail, and the elastic member is a bow-shaped spring piece. An elastic member is arranged between the fixed knife mounting frame and the guide rail, and the elastic member always applies an elastic force to the fixed knife mounting frame, and the direction of the elastic force is perpendicular to the direction in which the fixed knife mounting frame slides along the guide rail, thereby compensating for the dimensional tolerance that is inevitably present during the manufacturing of the guide rail and the fixed knife mounting frame, so that when the fixed knife mounting frame is mounted to the guide rail, the fixed knife mounting frame is always in close contact with the inner wall of the guide rail, and a gap is not likely to appear between the fixed knife mounting frame and the inner wall of the guide rail, and the fixed knife mounting frame operates stably, thereby making the entire cutter head assembly operate stably, and there will be no looseness or tightness or even noise during use, thereby improving the working performance of the electric hair clipper. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the specific implementation methods of the present utility model, the drawings required for use in the description of the specific implementation methods will be briefly introduced below. Obviously, the drawings in the following description are some implementation methods of the present utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 It is an exploded view of the overall structure of the utility model;

[0019] Figure 2 The utility model Figure 1 A magnified schematic diagram of point A;

[0020] Figure 3 It is a schematic diagram of the three-dimensional structure of the bow-shaped spring piece of the utility model;

[0021] Figure 4 It is a partial schematic diagram of the fuselage of the utility model;

[0022] Figure 5 It is a three-dimensional schematic diagram of the fixed knife mounting frame of the utility model;

[0023] Figures 1 to 5 The bid number is:

[0024] 1. Body; 11. Guide rail; 111. Groove; 2. Cutter head assembly; 21. Fixed knife mounting frame; 211. Bending portion; 22. Fixed knife blade; 3. Bow-shaped spring piece; 31. Arch bridge portion; 32. Flat abutment portion. DETAILED DESCRIPTION

[0025] In order to make the above-mentioned purposes, features and advantages of the utility model more obvious and easy to understand, the specific implementation methods of the utility model are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the utility model. However, the utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the utility model, so the utility model is not limited by the specific embodiments disclosed below.

[0026] In the description of the present invention, it should be understood that if the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. appear, the orientation or position relationship indicated by these terms is based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present invention and simplifying the description, and does 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 cannot be understood as a limitation on the present invention.

[0027] In addition, if the terms "first" or "second" appear, these terms are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of the present utility model, if the term "plurality" appears, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0028] In the present invention, unless otherwise clearly defined and limited, if the terms "installed", "connected", "connected", "fixed" and the like appear, these terms 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. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0029] In the present utility model, unless otherwise clearly specified and limited, if there is a description that a first feature is "above" or "below" a second feature, etc., or similar descriptions appear, it may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "above" and "above" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature being "below", "below" and "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0030] It should be noted that if an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. If an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. If any, the terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in this utility model are only for illustrative purposes and do not represent the only implementation method.

[0031] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments of the present invention can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0032] like Figures 1 to 5 As shown, an anti-loosening installation structure of a fixed blade mounting frame of an electric hair clipper comprises a body 1 and a blade assembly 2, wherein the blade assembly 2 is arranged at the front end of the body 1, the blade assembly 2 comprises a fixed blade mounting frame 21 and a fixed blade 22, wherein the fixed blade 22 is fixedly connected to the fixed blade mounting frame 21, a guide rail 11 is arranged at the front end of the body 1, the fixed blade mounting frame 21 is slidably connected to the guide rail 11, an elastic member is arranged between the guide rail 11 and the fixed blade mounting frame 21, the elastic member always applies an elastic force to the fixed blade mounting frame 21, and the direction of the elastic force is perpendicular to the direction in which the fixed blade mounting frame 21 slides along the guide rail 11, so that the fixed blade mounting frame 21 always clings to the inner side wall of the guide rail 11. The fixed blade mounting frame 21 is provided with a bending portion 211 extending inwardly, and the fixed blade mounting frame 21 slides with the guide rail 11 through the bending portion 211, and the elastic member is arranged between the bending portion 211 and the guide rail 11. The elastic member is a bow-shaped spring piece 3 .

[0033] Based on the above embodiments, the utility model aims to solve the problem of providing an anti-loosening installation structure of a fixed blade mounting frame of an electric hair clipper, comprising a body 1 and a blade head assembly 2, wherein the blade head assembly 2 is arranged at the front end of the body 1, and the blade head assembly 2 comprises a fixed blade mounting frame 21 and a fixed blade 22, wherein the fixed blade 22 is fixedly connected to the fixed blade mounting frame 21, and a guide rail 11 is provided at the front end of the body 1, and the fixed blade mounting frame 21 is slidably connected to the guide rail 11, and an elastic member is provided between the guide rail 11 and the fixed blade mounting frame 21, wherein the elastic member always applies an elastic force to the fixed blade mounting frame 21, and the direction of the elastic force is perpendicular to the direction in which the fixed blade mounting frame 21 slides along the guide rail 11, so that the fixed blade mounting frame 21 is always close to the inner side wall of the guide rail 11. The fixed blade mounting frame 21 is provided with a bent portion 211 extending inwardly, and the fixed blade mounting frame 21 is slidably matched with the guide rail 11 through the bent portion 211, and the elastic member is disposed between the bent portion 211 and the guide rail 11. The elastic member is a bow-shaped spring piece 3. An elastic member is arranged between the fixed blade mounting frame 21 and the guide rail 11, and the elastic member always applies an elastic force to the fixed blade mounting frame 21, and the direction of the elastic force is perpendicular to the direction in which the fixed blade mounting frame 21 slides along the guide rail 11, thereby compensating for the dimensional tolerance that is inevitably present during the manufacturing of the guide rail 11 and the fixed blade mounting frame 21, so that when the fixed blade mounting frame 21 is installed on the guide rail 11, the fixed blade mounting frame 21 always clings to the inner wall of the guide rail 11, and a gap is not likely to appear between the fixed blade mounting frame 21 and the inner wall of the guide rail 11, and the fixed blade mounting frame 21 operates stably, thereby making the entire blade head assembly 2 operate stably, and there will be no looseness or tightness, or even noise, during use, thereby improving the working performance of the electric hair clipper. During installation, the bow-shaped spring piece 3 is placed in the groove 111, the arch bridge portion 31 is abutted against the bending portion 211, and the flat abutment portion 32 is abutted against the inner wall of the guide rail 11. The bow-shaped spring piece 3 compensates for the dimensional tolerance of the guide rail 11 and the fixed blade mounting frame 21. Therefore, when the fixed blade mounting frame 21 is installed on the guide rail 11, the bent portion 211 always fits against the inner wall of the guide rail 11, and the fixed blade mounting frame 21 will not become loose due to the dimensional tolerance of the guide rail 11 and the fixed blade mounting frame 21. The fixed blade mounting frame 21 operates stably, and thus the entire blade head assembly 2 operates stably. There will be no looseness or tightness or even noise during use, thereby improving the working performance of the electric hair clipper.

[0034] As another preferred embodiment of the present invention, the bow-shaped spring piece 3 is provided with an arch bridge portion 31, and both ends of the arch bridge portion 31 are extended with a flat abutment portion 32, the arch bridge portion 31 is abutted against the fixed knife mounting bracket 21, and the flat abutment portion 32 is abutted against the inner wall of the guide rail 11. The inner wall of the guide rail 11 is provided with a groove 111 that cooperates with the bow-shaped spring piece 3, and the bow-shaped spring piece 3 is installed in the groove 111 through the flat abutment portion 32. The length of the groove 111 is greater than the length of the bow-shaped spring piece 3, and the depth of the groove 111 is less than the height of the bow-shaped spring piece 3. In this embodiment, the bow-shaped spring piece 3 can be arranged on the upper inner wall of the guide rail 11, so that the bending portion 211 always has a tendency to abut against the upper inner wall of the guide rail 11; the bow-shaped spring piece 3 can also be arranged on the lower inner wall of the guide rail 11, so that the bending portion 211 always has a tendency to abut against the lower inner wall of the guide rail 11. For example, Figure 2 As shown, the bow-shaped spring piece 3 is arranged on the lower inner side wall of the guide rail 11, and the lower inner side wall of the guide rail 11 is provided with a groove 111 for installing the bow-shaped spring piece 3. The length of the groove 111 is greater than the length of the bow-shaped spring piece 3, so that the spring piece can be placed in the groove 111. The depth of the groove 111 is smaller than the height of the bow-shaped spring piece 3, so that after installation, the bent portion 211 cooperates with the bottom of the groove 111 to compress the bow-shaped spring piece 3 and produce deformation. The bow-shaped spring piece 3 deforms toward the reset state to produce an elastic force, and the direction of the elastic force is perpendicular to the direction in which the fixed blade mounting frame 21 slides along the guide rail 11, so that the fixed blade mounting frame 21 is always in close contact with the inner wall of the guide rail 11, and thus the bent portion 211 of the fixed blade mounting frame 21 always has a tendency to abut against the lower wall of the guide rail 11, and the fixed blade mounting frame 21 will not become loose due to the dimensional tolerance between the guide rail 11 and the fixed blade mounting frame 21, and the blade head assembly 2 runs smoothly, thereby improving the stability of the electric hair clipper during haircutting. In this embodiment, if Figure 2 , Figure 3 As shown, the arrangement of the arch bridge portion 31 allows the bow-shaped spring piece 3 to deform when squeezed, thereby generating an elastic force. The arrangement of the flat portion 32 facilitates the bow-shaped spring piece 3 to be stably placed in the groove 111, and also increases the contact area between the bow-shaped spring piece 3 and the bottom of the groove 111, so that the bow-shaped spring piece 3 can be installed stably.

[0035] As another preferred solution of the utility model, an adjusting wrench for driving the fixed blade mounting frame 21 to slide relative to the guide rail 11 is provided on one side of the fuselage 1, and the elastic member is located on the other side of the fuselage 1 corresponding to the adjusting wrench. In this embodiment, the adjusting wrench can rotate relative to the fuselage 1 and synchronously drive the fixed blade mounting frame 21 to slide along the guide rail 11, and the elastic member is located on the other side of the fuselage 1 corresponding to the adjusting wrench, because the fixed blade mounting frame 21 has been limited by screws on the side where the adjusting wrench is installed, so that the bending portion 211 of the fixed blade mounting frame 21 on the side where the adjusting wrench is located is not easy to shake during operation. The other side of the fuselage 1 corresponding to the adjusting wrench is installed to compensate for the dimensional tolerance of the guide rail 11 and the fixed blade mounting frame 21 by installing an elastic member. In this way, both sides of the fixed blade mounting frame 21 are not easy to shake during operation, and the fixed blade mounting frame 21 can run smoothly, thereby making the cutter head assembly 2 run smoothly, thereby improving the working performance of the electric hair clipper.

[0036] As another preferred embodiment of the present invention, the elastic member is made of spring steel. In this embodiment, the elastic member is made of spring steel. After heat treatment and cold drawing hardening, the spring steel has relatively high strength, high elastic limit, high yield limit, and certain flexibility and plasticity, so that the elastic member has good elasticity. The elastic force generated by the deformation of the elastic member toward the reset state makes the bent portion 211 and the inner side wall of the guide rail 11 always have a tendency to abut against each other.

[0037] Obviously, the above embodiments are merely examples for the purpose of clear explanation, and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived therefrom are still within the scope of protection of the present utility model.

Claims

1. An anti-loosening installation structure for a fixed blade mounting frame of an electric hair clipper, comprising a body (1) and a blade head assembly (2), the blade head assembly (2) being arranged at the front end of the body (1), the blade head assembly (2) comprising a fixed blade mounting frame (21) and a fixed blade (22), the fixed blade (22) being fixedly connected to the fixed blade mounting frame (21), a guide rail (11) being arranged at the front end of the body (1), the fixed blade mounting frame (21) being slidably connected to the guide rail (11), and characterized in that: An elastic member is provided between the guide rail (11) and the fixed knife mounting frame (21), and the elastic member always applies an elastic force to the fixed knife mounting frame (21), wherein the direction of the elastic force is perpendicular to the direction in which the fixed knife mounting frame (21) slides along the guide rail (11), so that the fixed knife mounting frame (21) always clings to the inner side wall of the guide rail (11).

2. The anti-loosening installation structure of the fixed blade mounting frame of an electric hair clipper according to claim 1, characterized in that: The fixed knife mounting frame (21) is provided with a bent portion (211) extending inwardly, the fixed knife mounting frame (21) is slidably matched with the guide rail (11) via the bent portion (211), and the elastic member is disposed between the bent portion (211) and the guide rail (11).

3. The anti-loosening installation structure of the fixed blade mounting frame of an electric hair clipper according to claim 1, characterized in that: The elastic member is a bow-shaped spring piece (3).

4. The anti-loosening installation structure of the fixed blade mounting frame of an electric hair clipper according to claim 3, characterized in that: The bow-shaped spring piece (3) is provided with an arch bridge portion (31), and both ends of the arch bridge portion (31) are provided with flat abutment portions (32), the arch bridge portion (31) abuts against the fixed blade mounting frame (21), and the flat abutment portion (32) abuts against the inner side wall of the guide rail (11).

5. The anti-loosening installation structure of the fixed blade mounting frame of an electric hair clipper according to claim 4, characterized in that: The inner side wall of the guide rail (11) is provided with a groove (111) that cooperates with the bow-shaped spring piece (3); the bow-shaped spring piece (3) is installed in the groove (111) via the flat abutment portion (32).

6. The anti-loosening installation structure of the fixed blade mounting frame of an electric hair clipper according to claim 5, characterized in that: The length of the groove (111) is greater than the length of the bow-shaped elastic piece (3), and the depth of the groove (111) is less than the height of the bow-shaped elastic piece (3).

7. The anti-loosening installation structure of the fixed blade mounting frame of an electric hair clipper according to claim 1, characterized in that: An adjusting wrench for driving the fixed knife mounting frame (21) to slide relative to the guide rail (11) is provided on one side of the body (1), and the elastic member is located on the other side of the body (1) corresponding to the adjusting wrench.

8. The anti-loosening installation structure of the fixed blade mounting frame of an electric hair clipper according to claim 1, characterized in that: The elastic member is made of spring steel.

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