CN217751524U

CN217751524U - Transmission structure of electric shaver

Info

Publication number: CN217751524U
Application number: CN202221346767.6U
Authority: CN
Inventors: 阮晨阳
Original assignee: Wenzhou Jinke Electrical Appliance Co ltd
Current assignee: Wenzhou Jinke Electrical Appliance Co ltd
Priority date: 2022-05-30
Filing date: 2022-05-30
Publication date: 2022-11-08
Anticipated expiration: 2032-05-30

Abstract

The utility model discloses an electric shaver's transmission structure, including the casing, be provided with three counter drive shaft along the straight line direction range on the casing, counter drive shaft's lower extreme is provided with first gear, and the meshing is connected with the second gear between two adjacent counter drive shaft's the first gear, and the three counter drive shaft of cooperation linkage through first gear and second gear rotates with fast, and the below that is located the counter drive shaft of intermediate position still is provided with final drive shaft, one of them coaxial fixed connection's of second gear third gear, the coaxial fixedly connected with fourth gear in final drive shaft upper end, third gear and fourth gear meshing linkage. The utility model discloses a transmission simple structure, cost are lower, and have better effect of shaving.

Description

Transmission structure of electric shaver

Technical Field

The utility model relates to a transmission structure of electric shaver.

Background

The traditional three-head straight-line electric shaver generally has two driving modes, the first mode is that the cutter head positioned in the middle is directly driven to rotate by a brushless motor and the two cutter heads positioned on two sides are linked to rotate by a transmission gear; the second type is that the circular telegram machine directly drives the tool bit in middle part and rotates, and two tool bits that are located both sides through the reduction gear drive rotate, adopt the drive mode of second type, and the rotational speed that is located two tool bits of both sides will be less than middle gear, leads to the tool bit in middle part to shave the effect and obviously be less than the tool bit of both sides, the influence effect of shaving.

SUMMERY OF THE UTILITY MODEL

The utility model provides a not enough to prior art, the utility model provides an electric shaver's transmission structure, simple structure, cost are lower, and have better effect of shaving.

In order to realize the above object, the utility model provides an electric shaver's transmission structure, including the casing, be provided with three auxiliary drive shaft along the linear direction range on the casing, auxiliary drive shaft's lower extreme is provided with first gear, and the meshing is connected with the second gear between two adjacent auxiliary drive shaft's the first gear, and the three auxiliary drive shaft of cooperation linkage through first gear and second gear rotates with fast, and the below that is located the auxiliary drive shaft of intermediate position still is provided with final drive shaft, the third gear of the coaxial fixed connection of one of them second gear, the coaxial fixedly connected with fourth gear in final drive shaft upper end, third gear and fourth gear meshing linkage.

Further, the auxiliary transmission shaft is including upper portion, lower part and support the spring of establishing between upper portion and lower part, and the upper end of upper portion has the connector of being connected with the tool bit cooperation, and the lower extreme of lower part is provided with first gear, the lower extreme of upper portion and the upper end of lower part constitute the swing joint cooperation that can coaxial relative motion, the lower extreme of upper portion and the upper end of lower part also constitute the spacing transmission connection cooperation of circumference.

Furthermore, the upper end of the lower part is provided with a slot, the lower end of the upper part is movably inserted into the slot, a plurality of guide grooves are uniformly distributed in the circumferential direction of the peripheral side wall of the slot, and a plurality of sliding blocks which are matched with the guide grooves and guide to slide are uniformly distributed in the circumferential direction of the peripheral side wall of the lower end of the upper part.

Furthermore, the slot is equipped with a plurality of slots all around on the lateral wall circumference equipartition, and a plurality of slots and a plurality of guide slot are circumference distribution in turn.

Furthermore, the bottom central point of slot puts and is provided with the projection that is used for cup jointing the location with the cooperation of spring lower extreme, the central point of upper portion lower extreme puts and is provided with the mounting groove that cup joints the location with the cooperation of spring upper end.

The beneficial effects of the utility model are that: the three auxiliary transmission shafts are in meshed transmission connection through the first gear and the second gear, so that the three auxiliary transmission shafts can rotate synchronously at the same rotating speed, the main transmission shaft is matched with the third gear which is coaxially and fixedly connected with one of the second gears through the fourth gear in a transmission connection mode, the three auxiliary transmission shafts are driven to rotate through the second gear, and the effect of speed reduction can be achieved by means of conventional gear ratio configuration. The utility model discloses simple structure makes three tool bit can rotate with the rotational speed to still have the speed reduction effect, can reduce the requirement to the motor, therefore can reduce cost.

Drawings

FIG. 1 is a cross-sectional view of an embodiment of the present invention;

FIG. 2 is a block diagram of an embodiment of the present invention;

fig. 3 is an exploded view of an embodiment of the present invention.

Detailed Description

The embodiment of the transmission structure of the electric shaver of the utility model is shown in figures 1-3: including casing 1, be provided with three counter shaft 2 along the straight line direction range on the casing 1, the lower extreme of counter shaft 2 is provided with first gear 31, the meshing is connected with second gear 32 between the first gear 31 of two adjacent counter shaft 2, the synchronous and with fast rotation of three counter shaft 2 of cooperation linkage through first gear 31 and second gear 32, second gear 32 rotates with the casing 1 cooperation and is connected, the below that is located the counter shaft 2 of intermediate position still is provided with final drive shaft 4, the third gear 33 of the coaxial fixed connection of one of them second gear 32, the coaxial fixedly connected with fourth gear 34 in final drive shaft 4 upper end, third gear 33 and the meshing linkage of fourth gear 34. The lower end of the main transmission shaft 4 is used for being connected with an output shaft of a motor in a matching way. The output shaft of the motor drives the main transmission shaft 4 to rotate, the main transmission shaft 4 drives the third gear 33 and one of the second gears 32 which are coaxially and fixedly connected with the third gear to synchronously rotate through the fourth gear 34, and then the three auxiliary transmission shafts 2 can be driven to synchronously rotate.

With the above structure, on the one hand, the gear ratio between the gears can be reasonably configured to realize the speed reduction function, for example, the diameter and the number of teeth of the second gear 32 are smaller than those of the first gear 31, so that the transmission speed reduction effect can be realized. On the other hand, the upper ends of the three auxiliary transmission shafts 2 are respectively connected with the three cutter heads, so that the three cutter heads can be driven to synchronously rotate at the same rotating speed, and each cutter head is guaranteed to have the same shaving effect.

The counter drive shaft 2 is including upper portion 21, lower part 22 and support the spring 23 of establishing between upper portion 21 and lower part 22, the upper end of upper portion 21 has the connector 211 of being connected with the tool bit cooperation, the connector 211 is universal connector, can provide the adaptability function that the slope was swayd for the tool bit, the lower extreme integrated into one piece of lower part 22 has first gear 31, the lower extreme of upper portion 21 and the upper end of lower part 22 constitute the swing joint cooperation that can coaxial relative motion, the lower extreme of upper portion 21 and the upper end of lower part 22 also constitute the spacing transmission connection cooperation of circumference, this makes the upper portion 21 of counter drive shaft 2 can move down for lower part 22 relatively, and provide its elasticity that resets upwards through spring 23, make the tool bit possess unsteady function, reduce the injury to the skin, improve the effect of shaving.

The upper end of the lower part 22 is provided with a slot 221, the lower end of the upper part 21 is movably inserted into the slot 221, the peripheral side walls of the slot 221 are uniformly distributed with a plurality of guide grooves 222 in the circumferential direction, the peripheral side walls of the lower end of the upper part 21 are uniformly distributed with a plurality of sliding blocks 212 which are matched with the guide grooves 222 to guide sliding, and the auxiliary transmission shaft 2 can rotate stably by adopting the structural design.

The slot 221 is circumferentially and uniformly distributed on the peripheral side wall, the plurality of slots 223 and the plurality of guide grooves 222 are circumferentially and alternately distributed, the deformation capacity of the peripheral side wall of the slot 221 can be improved by the arrangement of the slots 223, and the slider 212 can be conveniently mounted.

The bottom center position of slot 221 is provided with and is used for cup jointing the boss 224 of location with the cooperation of spring 23 lower extreme, the center position of upper portion 21 lower extreme is provided with and cooperatees the mounting groove 213 of cup jointing the location with spring 23 upper end, improves the reliability that spring 23 fixed a position.

The above embodiments are only one of the preferred embodiments of the present invention, and the general changes and substitutions performed by those skilled in the art within the technical scope of the present invention are all included in the protection scope of the present invention.

Claims

1. A transmission structure of an electric shaver is characterized in that: including the casing, arrange along the rectilinear direction on the casing and be provided with three counter drive shaft, the lower extreme of counter drive shaft is provided with first gear, and the meshing is connected with the second gear between two adjacent counter drive shaft's the first gear, and three counter drive shaft of cooperation linkage through first gear and second gear rotates with fast, and the below that is located the counter drive shaft of intermediate position still is provided with final drive shaft, the coaxial fixed connection's of one of them second gear third gear, the coaxial fixedly connected with fourth gear in final drive shaft upper end, third gear and fourth gear meshing linkage.

2. The transmission structure of an electric shaver according to claim 1, wherein: the auxiliary transmission shaft comprises an upper part, a lower part and a spring which is arranged between the upper part and the lower part in a supporting mode, the upper end of the upper part is provided with a connector which is connected with the cutter head in a matching mode, the lower end of the lower part is provided with a first gear, the lower end of the upper part and the upper end of the lower part form a movable connection fit capable of moving coaxially and relatively, and the lower end of the upper part and the upper end of the lower part also form a circumferential limiting transmission connection fit.

3. The transmission structure of an electric shaver according to claim 2, wherein: the upper end of the lower part is provided with a slot, the lower end of the upper part is movably inserted into the slot, a plurality of guide grooves are uniformly distributed in the circumferential direction of the peripheral side wall of the slot, and a plurality of sliding blocks which are matched with the guide grooves to guide sliding are uniformly distributed in the circumferential direction of the peripheral side wall of the lower end of the upper part.

4. The transmission structure of an electric shaver according to claim 3, wherein: the slot is equipped with a plurality of slots all around on the lateral wall circumference equipartition, and a plurality of slots and a plurality of guide slot are circumference distribution in turn.

5. The transmission structure of an electric shaver according to claim 3, wherein: the bottom central point of slot puts and is provided with the projection that is used for cup jointing the location with the cooperation of spring lower extreme, the central point of upper portion lower extreme puts and is provided with the mounting groove that cup joints the location with the cooperation of spring upper end.