A moving blade assembly used in electric clippers

Abstract

This utility model discloses a moving blade assembly for use in electric hair clippers, including a moving blade bracket and a moving blade fixedly mounted on the bracket. The moving blade bracket has a protrusion, and protruding posts extending in a left-right direction are formed on both sides of the protrusion. A spring is fitted on each protrusion, with the end of the spring facing away from the protrusion abutting against the housing in the clipper's blade attachment. This allows the two springs to automatically reset the moving blade bracket to its initial position when not in operation. This technical solution enables the moving blade bracket to automatically reset to its initial position when not in operation, avoiding sudden current surges and misaligned starting problems during the hair clipper's startup, and preventing the moving blade's travel trajectory from gradually deviating, thus improving product lifespan.

Description

Technical Field

[0001] This utility model relates to the technical field of components in electric hair clippers, and in particular to a moving blade assembly used in electric hair clippers. Background Technology

[0002] Electric hair clippers, as a commonly used hair care tool, typically consist of a housing, a fixed blade, and a moving blade mounted on the housing. To achieve the reciprocating cutting motion of the moving blade, a driver is installed in the housing. The driver's output is eccentrically connected to a swing mechanism for transmission to the moving blade support. Furthermore, to limit the movement path of the swing mechanism, a shaft is required to confine it to the desired direction of movement of the moving blade relative to the fixed blade. This design inevitably results in a relatively bulky structure, energy consumption in the transmission between components, and frictional heat generation due to the relative movement of the transmission parts, which shortens its lifespan. The assembly process is also complex, especially since the shaft connections or sockets require alignment of the shaft axis during installation to limit the movement trajectory of the moving blade. Further sampling and correction are needed after assembly, leading to higher production costs. Furthermore, when the device is not in use, the moving blade will remain in the real-time position instead of the initial position. When it is restarted, there is a problem of misalignment causing a sudden increase in current in the internal electrical components and misalignment during startup. Over time, the travel trajectory of the moving blade will gradually deviate from the initial preset trajectory, and may even collide with the inner wall of the housing, which will impair the product's service life. Utility Model Content

[0003] In view of the above-mentioned problems in the prior art, a moving blade assembly for use in electric clippers is provided to overcome at least one of the above-mentioned technical defects.

[0004] The specific technical solution is as follows:

[0005] A moving blade assembly for use in electric clippers includes a moving blade bracket and a moving blade fixedly mounted on the moving blade bracket;

[0006] The moving blade support has a protrusion, and on the left and right sides of the protrusion are protruding posts extending in the left and right direction. Each protruding post is fitted with a spring. The end of the spring away from the protruding post abuts against the housing in the blade attachment of the electric clipper. This is used so that when not in operation, the two springs can cause the moving blade support to return to the initial position.

[0007] Preferably, the moving tool holder includes a flat body for fixing the moving tool, the rear end of the body is provided with a connecting seat, and the angle between the connecting seat and the body in the cross-sectional direction forms an acute angle, so that in the assembled state, the body and the moving tool are arranged inclined downward in the forward direction.

[0008] Preferably, the bump is formed on the connector.

[0009] Preferably, the rear end face of the connector has a groove and a connecting plate is embedded therein. The rear end of the connecting plate has multiple slots arranged at intervals in the left-right direction. Each slot is fitted with a magnetic element, and adjacent magnetic elements have opposite polarities in the arrangement direction of the magnetic elements.

[0010] Preferably, the electric clipper includes a blade attachment, and the moving blade assembly is at least partially disposed in the housing of the blade attachment and is movable in the left and right direction. An opening groove is formed on the housing, and columnar protrusions are respectively provided on both sides of the opening groove. The two ends of each spring are respectively sleeved between the columnar protrusions and the protrusions.

[0011] Preferably, the columnar protrusions and the columnar protrusions are arranged on the same axis.

[0012] Preferably, the housing is also provided with an elastic connecting frame that can swing back and forth in the left and right direction, and the connecting seat is assembled at the front end of the elastic connecting frame to allow the moving blade assembly to swing in the left and right direction within the housing.

[0013] Preferably, the elastic connecting frame includes a fixed seat that is limited and installed in the housing, a crossbar that is parallel to the fixed seat and located in the direction in front of the fixed seat, and two spring members that are respectively connected to the left and right sides of the crossbar. The ends of the spring members that are away from the crossbar are respectively connected to the left and right sides of the fixed seat to allow the crossbar to swing in the left and right direction relative to the fixed seat under the action of the two spring members. The connecting seat is connected to the crossbar.

[0014] Preferably, the crossbar also has a slot for engaging the connector, and the connector has a block structure that matches the shape of the slot.

[0015] Preferably, the card slot is configured such that one side is open and the inner walls on the left and right sides form two oppositely arranged transverse grooves, and the left and right sides of the card block structure each have a protrusion that matches the shape of the transverse groove.

[0016] The beneficial effects of the above technical solution are as follows:

[0017] (1) The moving blade assembly includes a moving blade bracket and a moving blade. The moving blade bracket is equipped with a protrusion, a protruding post and two springs, which can automatically reset the moving blade bracket to the initial position when it is not in operation, avoid the problem of sudden current rise and misaligned start-up during the start-up of the electric clipper, and avoid the problem of the moving blade's stroke trajectory gradually deviating, which is beneficial to improving the product's service life.

[0018] (2) This structural design allows the moving tool support and the moving tool to reciprocate without the need for an additional eccentric swing structure to transmit kinetic energy. This results in a higher energy conversion rate, a more streamlined and compact structure, and facilitates production assembly and maintenance. It also avoids the problem of friction and heat generation caused by the reciprocating motion between transmission components, and prevents wear and aging caused by long-term operation of components, thus extending the product's service life. Attached Figure Description

[0019] Figure 1 This is an exploded view of the moving blade assembly of this utility model applied in electric hair clippers;

[0020] Figure 2 This utility model relates to a three-dimensional moving blade support in the moving blade assembly of an electric hair clipper. Figure 1 ;

[0021] Figure 3 This utility model relates to a three-dimensional moving blade support in the moving blade assembly of an electric hair clipper. Figure 2 ;

[0022] Figure 4 This is a schematic diagram of the moving blade assembly of this utility model applied to the blade head accessory in an electric hair clipper. Figure 1 ;

[0023] Figure 5 This is a schematic diagram of the moving blade assembly of this utility model applied to the blade head accessory in an electric hair clipper. Figure 2 ;

[0024] Figure 6 for Figure 5 Exploded view;

[0025] Figure 7 This is a perspective view of the moving blade support and the elastic connecting frame in the blade head accessory of the moving blade assembly applied to electric clippers according to this utility model. Detailed Implementation

[0026] To make the technical means, creative features, objectives and effects of this utility model easy to understand, the following embodiments are described in detail with reference to the accompanying drawings.

[0027] See Figures 1 to 7 As shown, the moving blade assembly for electric clippers provided in this embodiment includes a moving blade bracket 1 and a moving blade 2 fixed on the moving blade bracket 1. The moving blade bracket 1 has a protrusion 14, and the left and right sides of the protrusion 14 are respectively provided with protrusions 15 extending in the left and right directions. Each protrusion 15 is fitted with a spring 5. The end of the spring 5 away from the protrusion 15 abuts against the housing 6 in the blade attachment of the electric clipper, so that the two springs 5 ​​can cause the moving blade bracket 1 to return to the initial position when not in operation.

[0028] Based on the above technical solution, the moving blade assembly includes a moving blade support 1 and a moving blade 2. The moving blade support 1 is provided with a protrusion 14, a protrusion 15, and two springs 5, which can enable the moving blade support 1 to automatically reset to the initial position when not in operation, avoid the problem of sudden current rise and misaligned start-up during the start-up of the electric clipper, and avoid the problem of the moving blade's stroke trajectory gradually deviating, which is beneficial to improving the product's service life.

[0029] In a preferred embodiment, the moving blade holder 1 includes a flat body 11 for fixing the moving blade 2. A connecting seat 12 is formed at the rear end of the body 11, and the angle between the connecting seat 12 and the body 11 in the cross-sectional direction forms an acute angle, causing the body 11 and the moving blade 2 to be arranged inclined downwards in the forward direction in the assembled state. Furthermore, a protrusion 14 is formed on the connecting seat 12.

[0030] As a corresponding design, the electric clipper's blade attachment includes a housing 6, a fixed blade assembly 7 mounted on the housing 6, a moving blade assembly 8, a magnetic drive assembly 9 mounted inside the housing 6, and an elastic connecting frame 10 for connecting the moving blade support 1 and allowing the moving blade support 1 to swing back and forth in the left and right directions. The front side of the upper end of the housing 6 is formed with an inclined surface that is inclined downward in the forward direction. The inclination of the inclined surface is equal to the angle of the acute angle. The fixed blade assembly 7 includes a fixed blade support hinged to the upper end of the housing 6 and a fixed blade mounted on the fixed blade support. The housing 6 also has an elastic member for causing the fixed blade support to be tightly attached to the inclined surface, so that the fixed blade and the moving blade 2 are arranged parallel and adjacent to each other in the working state.

[0031] As a further preferred embodiment, the rear end face of the connector 12 is formed with a groove 13 and a connecting plate 3 is embedded therein. The rear end of the connecting plate 3 is arranged with a plurality of slots at intervals in the left and right direction. Each slot is fitted with a magnetic element 4, and adjacent magnetic elements 4 have opposite polarities in the arrangement direction of the magnetic elements 4.

[0032] Correspondingly, the magnetic drive assembly 9 preferably consists of two electromagnets arranged side by side, with enameled copper wire wound around them in opposite directions. When an alternating current is input into the enameled copper wire, the front ends of the two electromagnets can form alternating magnetic poles with opposite polarities. Correspondingly, the magnetic components 4 are selected as three arranged side by side, and the magnetic components 4 are permanent magnets arranged with NSN poles or SNS poles. Alternatively, the magnetic drive assembly 9 can be set as a single electromagnet and enameled copper wire wound around it, in which case there are two magnetic components 4. It is not limited to this, as long as the magnetic drive assembly and the magnetic components work together to cause the moving tool assembly and the elastic connecting frame to swing in the left and right direction.

[0033] In a preferred embodiment, combined with Figure 3 and Figure 4As shown, the electric hair clipper includes a blade attachment. A moving blade assembly 8 is at least partially disposed within the housing 6 of the blade attachment and is movable in the left-right direction. An opening slot is formed on the housing 6, and columnar protrusions 21 are respectively provided on both sides of the opening slot. The two ends of each spring 5 are respectively sleeved between the columnar protrusion 21 and the protrusion 15. Furthermore, the columnar protrusion 21 and the protrusion 15 are arranged coaxially.

[0034] As a further preferred embodiment, the housing 6 is also provided with an elastic connecting frame 10 capable of reciprocating in a left-right direction. The connecting seat 12 is mounted on the front end of the elastic connecting frame 10 to allow the moving blade assembly 8 to swing left-right within the housing 6. Further, the elastic connecting frame 10 includes a fixed seat 20 fixedly mounted within the housing 6, a crossbar 18 parallel to the fixed seat 20 and located in front of the fixed seat 20, and two spring members 19 respectively connected to the left and right sides of the crossbar 18. The ends of the spring members 19 facing away from the crossbar 18 are respectively connected to the left and right sides of the fixed seat 20 to allow the crossbar 18 to swing left-right relative to the fixed seat 20 under the action of the two spring members 19. The connecting seat 12 of the moving blade support 1 is connected to the crossbar 18. Specifically, the rear end face of the crossbar 18 is in close contact with the side of the connecting seat 12 facing away from the magnetic component 4.

[0035] As a further preferred embodiment, the crossbar 18 is also provided with a slot 22 for engaging the connecting seat 12, and the connecting seat 12 has a locking block structure 16 that matches the shape of the slot 22. Furthermore, the slot 22 is configured to be open on one side and have two opposing transverse grooves 23 formed on the inner walls of the left and right sides. The locking block structure 16 has a protrusion 17 on each of its left and right sides that matches the shape of the transverse groove 23, so as to guide and limit the movement during assembly, making the installation structure more stable.

[0036] This structural design allows for the transmission of the moving tool support and the reciprocating oscillation of the moving tool without the need for an additional eccentric oscillating structure for kinetic energy transfer. This results in a higher energy conversion rate, a more streamlined and compact structure, and facilitates production assembly and maintenance. At the same time, it avoids the frictional heat generated by the reciprocating motion between transmission components, and prevents wear and aging caused by long-term operation of components, thus extending the product's service life.

[0037] The above description is merely a preferred embodiment of the present utility model and is illustrative rather than restrictive. Those skilled in the art will understand that many changes, modifications, and even equivalents can be made within the spirit and scope defined by the claims of the present utility model, all of which will fall within the protection scope of the present utility model.

Claims

1. A moving blade assembly for use in electric hair clippers, comprising a moving blade support (1) and a moving blade (2) fixedly mounted on the moving blade support (1); characterized in that, The moving blade support (1) has a protrusion (14), and protrusions (15) extending in the left and right directions are respectively formed on the left and right sides of the protrusion (14). Each of the protrusions (15) is fitted with a spring (5). The end of the spring (5) away from the protrusion (15) abuts against the housing (6) in the blade attachment of the electric clipper, so that the two springs (5) can cause the moving blade support (1) to return to the initial position when it is not in operation.

2. A moving blade assembly for use in an electric clipper as claimed in claim 1, wherein, The moving blade support (1) includes a flat body (11) for fixing the moving blade (2). The rear end of the body (11) is provided with a connecting seat (12), and in the cross-sectional direction, the angle between the connecting seat (12) and the body (11) forms an acute angle, so that in the assembled state, the body (11) and the moving blade (2) are arranged inclined downward in the forward direction.

3. The moving blade assembly applied in an electric hair clipper as described in claim 2, characterized in that, The protrusion (14) is formed on the connector (12).

4. The moving blade assembly applied in an electric hair clipper as described in claim 2, characterized in that, The rear end face of the connecting seat (12) forms a groove (13) and is fitted with a connecting plate (3). The rear end of the connecting plate (3) is arranged with multiple slots at intervals in the left and right direction. Each slot is fitted with a magnetic element (4), and adjacent magnetic elements (4) have opposite polarities in the arrangement direction of the magnetic elements (4).

5. The moving blade assembly applied in an electric hair clipper as described in claim 2, characterized in that, The electric clipper includes a blade attachment. The moving blade assembly (8) is at least partially disposed in the housing (6) of the blade attachment and is movable in the left and right direction. An opening groove is formed on the housing (6), and columnar protrusions (21) are respectively provided on both sides of the opening groove. The two ends of each spring (5) are respectively sleeved between the columnar protrusions (21) and the protrusions (15).

6. The moving blade assembly applied in an electric hair clipper as described in claim 5, characterized in that, The columnar protrusion (21) and the protruding column (15) are arranged on the same axis.

7. The moving blade assembly applied in an electric hair clipper as described in claim 6, characterized in that, The housing (6) is also provided with an elastic connecting frame (10) that can swing back and forth in the left and right direction. The connecting seat (12) is assembled at the front end of the elastic connecting frame (10) to allow the moving blade assembly (8) to swing back and forth in the housing (6).

8. The moving blade assembly applied in an electric clipper as described in claim 7, characterized in that, The elastic connecting frame (10) includes a fixed seat (20) that is limited and installed in the housing (6), a crossbar (18) that is parallel to the fixed seat (20) and located in the front direction of the fixed seat (20), and two spring members (19) that are respectively connected to the left and right sides of the crossbar (18). The end of the spring member (19) away from the crossbar (18) is respectively connected to the left and right sides of the fixed seat (20) to allow the crossbar (18) to swing in the left and right direction relative to the fixed seat (20) under the action of the two spring members (19). The connecting seat (12) is connected to the crossbar (18).

9. The moving blade assembly applied in an electric hair clipper as described in claim 8, characterized in that, The crossbar (18) is also provided with a slot (22) for engaging the connecting seat (12), and the connecting seat (12) has a block structure (16) that matches the shape of the slot (22).

10. The moving blade assembly applied in an electric hair clipper as described in claim 9, characterized in that, The slot (22) is configured to be open on one side and the inner walls on the left and right sides form two oppositely arranged transverse slots (23). The left and right sides of the card block structure (16) each have a protrusion (17) that matches the shape of the transverse slot (23).

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