Gear adjusting device for electric clipper

Abstract

The gear adjusting device comprises a screw, a sleeve, a gasket, an eccentric wheel and a spring, the sleeve is movably connected to the screw in a sleeved mode, the gasket is fixedly connected to the sleeve in a sleeved mode, the eccentric wheel is movably connected to the sleeve in a sleeved mode, the eccentric wheel is provided with a first concave-convex gear, the gasket is provided with a second concave-convex gear, and a crotch part is arranged at the outer end of the screw. The two ends of the spring abut against the crotch part and the gasket respectively, the first concave-convex gear is meshed with the second concave-convex gear, a fixing part is arranged on the eccentric wheel, and the fixing part and the outer side of the circumference of the crotch part are fixedly sleeved with a rotating piece. The first concave-convex gear and the second concave-convex gear are meshed with each other, when the rotating piece rotates, the spring abuts against the gasket, the adjusting device generates damping feeling, the tool bit is prevented from sliding in the using process, when the rotating piece rotates, the first concave-convex gear and the second concave-convex gear need to be disengaged at high frequency and then meshed, and the adjusting hand feeling of gear clamping is achieved. And the adjusting precision and the adjusting hand feeling are improved.

Description

Technical Field

[0001] This utility model relates to the field of electric hair clipper technology, specifically a gear adjustment device for electric hair clippers. Background Technology

[0002] Hairdressing, also known as hair care, commonly refers to trimming hair, or simply cutting hair, to give a clean and tidy appearance, serving to beautify one's appearance and enhance one's appearance. Hairdressing has a long history, and the tools used include scissors and electric clippers. To accommodate varying hair lengths, electric clippers typically incorporate an adjustment device at the blade head. This device usually adjusts the blade height by rotating it. However, existing adjustment devices lack damping structures, resulting in an uncomfortable feel when sliding for adjustment. Furthermore, the blade head is prone to slipping during the cutting process, leading to inconsistent hair lengths. Therefore, a new adjustable setting device for electric clippers has been developed. Utility Model Content

[0003] The purpose of this invention is to provide a gear adjustment device for electric push shears, which solves the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a gear adjustment device for an electric push shear, comprising a screw, a sleeve, a washer, an eccentric wheel, and a spring. The sleeve is movably fitted onto the screw, the washer is fixedly fitted onto the sleeve, and the eccentric wheel is movably fitted onto the sleeve. The eccentric wheel has several circumferentially arranged convex and concave gears (first type) on the side near the washer, and several circumferentially arranged convex and concave gears (second type) on the side near the eccentric wheel. The screw has a crotch at its outer end. The spring is fitted onto the sleeve, with both ends of the spring contacting the crotch and the washer respectively. Several convex and concave gears (first type) mesh with several convex and concave gears (second type). The eccentric wheel has a fixing part, and a rotating component is fixedly fitted onto the outer circumference of the crotch.

[0005] Preferably, it also includes a sliding component that is slidably connected to the electric push shear. The sliding component is provided with a locking groove, and an eccentric protrusion is provided on the side of the eccentric wheel away from the first convex and concave gear. The eccentric protrusion is inserted into the locking groove.

[0006] Preferably, the rotating component is a handle, and the rotating component is made of zinc alloy.

[0007] Preferably, the gasket is made of plastic.

[0008] Preferably, the fixing part is located on the side of the eccentric wheel near the washer, and there are multiple fixing parts arranged circumferentially.

[0009] Preferably, the slider is used to mount the cutter head.

[0010] Preferably, the rotating component is provided with a synchronous shaft extending inward, and the eccentric wheel is provided with a hole adapted to the synchronous shaft, and the synchronous shaft is inserted into the hole.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0012] This invention incorporates a sleeve, a gasket, an eccentric wheel, and a spring. The first and second convex gears mesh with each other. When the rotating component rotates, the spring abuts against the gasket, creating a damping effect in the adjustment device and preventing the cutter head from slipping during use. Furthermore, as the rotating component rotates, the first and second convex gears need to frequently disengage and re-engage, achieving a precise gear engagement adjustment feel and improving both adjustment accuracy and feel. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model;

[0014] Figure 2 This is an exploded structural diagram of the present invention;

[0015] Figure 3 This is a schematic diagram of an embodiment of the present utility model.

[0016] The reference numerals and names in the figure are as follows:

[0017] 1. Screw; 2. Sleeve; 3. Washer; 4. Eccentric wheel; 5. Spring; 6. First convex gear; 7. Second convex gear; 8. Crotch; 9. Fixing part; 10. Sliding part; 11. Rotating part; 12. Locking groove; 13. Eccentric protrusion; 14. Synchronous shaft; 15. Hole; 20. Cutting head; 100. Electric push shear. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "horizontal," "vertical," "top," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0020] Please see Figures 1 to 3 This utility model provides an embodiment of a gear adjustment device for an electric clipper, including a sliding member 10 slidably connected to the electric clipper 100, wherein the sliding member 10 is used to install the blade head 20, and also includes a screw 1, a sleeve 2, a washer 3, an eccentric wheel 4 and a spring 5. The sleeve 2 is movably sleeved on the screw 1, which prevents the screw 1 from directly contacting the electric clipper 100, allowing the screw 1 to rotate within the sleeve 2, and the sleeve 2 is fixedly connected to the electric clipper 100. The washer 3 is fixedly sleeved on the sleeve 2, that is, the washer 3 cannot rotate. The eccentric wheel 4 is movably sleeved on the sleeve 2, and the side of the eccentric wheel 4 near the washer 2 is provided with several circumferentially arranged concave and convex gears 6. The side of the washer 3 near the eccentric wheel 4 is provided with... There are several circumferentially arranged convex and concave gears 8. The screw 2 has a crotch 8 at its outer end. The spring 2 is sleeved on the sleeve 2, and the two ends of the spring 5 abut against the crotch 8 and the washer 3 respectively. Several convex and concave gears 6 mesh with several convex and concave gears 7. The eccentric wheel 4 has a fixing part 9. The fixing part 9 and the outer circumference of the crotch 8 are fixedly sleeved with a rotating part 11. When the rotating part 11 rotates, it can synchronously drive the eccentric wheel 4 and the screw 2 to rotate. The sliding part 10 has a locking groove 12. The side of the eccentric wheel 4 away from the convex and concave gears 6 has an eccentric protrusion 13. The eccentric protrusion 13 is inserted into the locking groove 12. When the eccentric wheel 4 rotates, it can push the sliding part 10 upward through the eccentric protrusion 13 to achieve the effect of adjusting the height.

[0021] When the rotating part 11 rotates, the spring 5 abuts against the shim 3, causing the adjustment device to generate a damping sensation, preventing the cutter head from slipping during use. When the rotating part 11 rotates, since the shim 3 is fixed, the eccentric wheel 4 rotates with the rotating part 11. The first convex gear 6 and the second convex gear 7 generate high-frequency disengagement and re-engagement to the next tooth groove in the direction of rotation, achieving the adjustment feel of gear engagement, improving the adjustment accuracy and adjustment feel.

[0022] In this embodiment, the cross-section of the outer circumference of the sleeve 2 is polygonal, and both the gasket 3 and the electric push shear 100 are provided with insertion and mounting holes of the same polygonal shape. The sleeve 2 is connected to the two mounting holes in sequence, that is, the gasket 3 is fixed in place.

[0023] In this embodiment, the screw 2 has a thread on one side of its inner end, and a nut is threaded onto the thread. The nut is located inside the electric push shear 100. This structure allows the screw 1 to be fitted onto the sleeve 2 and prevents the screw 1 from detaching from the sleeve 2 or the electric push shear 100.

[0024] In this embodiment, the rotating component 11 is a handle, which makes it easier to make adjustment and rotation movements. The rotating component 11 is made of zinc alloy, which further improves the service life of the device.

[0025] The gasket 2 is made of plastic, which is lightweight and easy to replace; at the same time, it prevents direct friction between the metal and the eccentric wheel 4, reduces wear, and extends the service life of the eccentric wheel 4.

[0026] In this embodiment, the fixing part 9 is provided on the side of the eccentric wheel 4 near the washer 3, and there are multiple fixing parts 9 arranged in a circular pattern.

[0027] The rotating component 11 is provided with a synchronous shaft 14 extending inward, and the eccentric wheel 4 is provided with a hole 15 that matches the synchronous shaft 14. The synchronous shaft 14 is inserted into the hole 15, which further improves the synchronous rotation rate of the eccentric wheel 4 and the rotating component 11.

[0028] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A gear adjustment device for electric push shears, comprising a screw, a sleeve, a washer, an eccentric wheel, and a spring, characterized in that: The sleeve is movably fitted onto the screw, the washer is fixedly fitted onto the sleeve, and the eccentric wheel is movably fitted onto the sleeve. The eccentric wheel has several circumferentially arranged convex and concave gears (first type) on the side near the washer, and the washer has several circumferentially arranged convex and concave gears (second type) on the side near the eccentric wheel. The screw has a crotch at its outer end. The spring is fitted onto the sleeve, with both ends of the spring contacting the crotch and the washer respectively. Several convex and concave gears (first type) mesh with each other. The eccentric wheel has a fixing part, and a rotating component is fixedly fitted onto the outer circumference of the crotch.

2. The gear adjustment device for an electric push shear according to claim 1, characterized in that: It also includes a sliding component that is slidably connected to the electric push shear. The sliding component is provided with a locking groove, and the eccentric wheel is provided with an eccentric protrusion on the side away from the convex and concave gear one. The eccentric protrusion is inserted into the locking groove.

3. The gear adjustment device for an electric push shear according to claim 1, characterized in that: The rotating component is a handle, and the rotating component is made of zinc alloy.

4. The gear adjustment device for an electric push shear according to claim 1, characterized in that: The gasket is made of plastic.

5. The gear adjustment device for an electric push shear according to claim 1, characterized in that: The fixing part is located on the side of the eccentric wheel near the washer, and there are multiple fixing parts arranged circumferentially.

6. A gear adjustment device for an electric push shear according to any one of claims 1 or 3, characterized in that: The rotating component is provided with a synchronous shaft extending inward, and the eccentric wheel is provided with a hole that matches the synchronous shaft, and the synchronous shaft is inserted into the hole.

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