CN219705273U - Multilayer waterproof structure of electric shaver - Google Patents

Abstract

The utility model discloses a multilayer waterproof structure of an electric shaver, wherein the peripheral edge of a layer frame is abutted against the inner side wall of a bottom shell and is enclosed to form a functional cavity, a motor is arranged in the functional cavity, a first shaft seal rubber pad is arranged at the top of the layer frame, a concave cavity is arranged at the top of the layer frame, an upper cover is covered on the layer frame and is enclosed to form a transmission gear cavity with the side wall of the concave cavity, a transmission shaft in transmission connection with an output shaft of the motor is arranged in the transmission gear cavity, a second shaft seal rubber pad is arranged at the top of the upper cover, a sleeving part sleeved on the outer side wall of the layer frame is arranged at the periphery of the upper cover, a sealing ring is arranged between the inner side wall of the sleeving part and the outer side wall of the layer frame, and an annular sealing piece is arranged on the outer side wall of the upper cover.

Description

Multilayer waterproof structure of electric shaver

Technical Field

The utility model particularly relates to a multi-layer waterproof structure of an electric shaver.

Background

The electric shaver utilizes electric power to drive the blade, electric appliances for shaving beards and sideburns are arranged in the body of the electric shaver, electric appliances such as a battery, a motor and a control circuit board are arranged on the shaver head, the blade and the like for shaving are arranged on the shaver head, the motor drives the blade to move through a transmission structure to realize a shearing function, therefore, a plurality of transmission parts are required to be arranged between the motor and the shaver head, the traditional electric shaver is provided with a surrounding sealing gasket at each transmission shaft to prevent water from entering the shaver head from the shaver head, but the traditional electric shaver is always contacted with water in daily use, the traditional waterproof structure is simple, the waterproof layer is single, the electric appliances are damaged due to the fact that the shaver body is easy to lose efficacy in long-time use, in addition, the shaver is always brought into a bathroom by people, the waterproof grade requirement for the shaver product is higher and higher, and the waterproof performance of the electric shaver is also required to be improved.

The present utility model has been made in view of the above-described drawbacks.

Disclosure of Invention

The utility model aims to overcome the defects in the prior art and provide a multi-layer waterproof structure of an electric shaver, which ensures that the electric shaver has better waterproof performance and prolongs the service life of products.

The utility model is realized by the following technical scheme:

the utility model provides an electric shaver multilayer waterproof construction, including the main casing, the main casing in be equipped with function module, function module top is connected with the razor tool bit, function module including drain pan, layer frame, the lid of setting in the drain pan establish the upper cover in layer frame top, connect the clamp plate in upper cover top, layer frame all around the edge paste the inside wall of drain pan and both enclose into a function chamber, the function chamber in be equipped with the motor, layer frame top be equipped with first shaft seal spare, first shaft seal spare middle part be equipped with the output shaft passageway that supplies the motor output shaft upwards to pass, layer frame top be equipped with the cavity, the upper cover close and become a drive gear chamber with the lateral wall of cavity, the drive gear chamber in be equipped with the transmission shaft of being connected with the motor output shaft transmission, the top of upper cover be equipped with the second shaft cushion, thereby the second shaft cushion middle part be equipped with the transmission shaft that supplies the transmission shaft to pass and be connected, the upper cover be equipped with the cover all around and cup joint in layer frame lateral wall outside, the lateral wall of layer frame outside be equipped with the annular seal spare outside the annular seal spare is equipped with the annular seal spare outside the annular seal cover outside the lateral wall of the side wall of the drain pan.

The multi-layer waterproof structure of the electric shaver is characterized in that the annular sealing piece and the upper cover are integrally formed.

The multi-layer waterproof structure of the electric shaver is characterized in that the outer side surface of the upper cover is provided with a stepped shoulder, the inner side surface of the annular sealing piece is provided with a concave surface matched with the shoulder, the outer side surface of the annular sealing piece is provided with a V-shaped clinging part which obliquely extends upwards and can cling to the inner side wall of the main machine shell, and the outer side surface of the annular sealing piece is also provided with an arc clinging part which protrudes outwards and can cling to the inner side wall of the main machine shell.

The multi-layer waterproof structure of the electric shaver is characterized in that the outer side surface of the upper cover is provided with a skirt edge part which extends outwards and abuts against the inner side wall of the main machine shell, the skirt edge part is positioned below the shoulder part, the bottom of the annular sealing piece abuts against the skirt edge part, and the top of the annular sealing piece abuts against the pressing plate.

As described above, the multi-layer waterproof structure of the electric shaver is characterized in that the layer frame is provided with the output shaft opening, the first shaft sealing element is arranged at the output shaft opening and covers the output shaft opening, the middle part of the first shaft sealing element is provided with the annular bulge which protrudes and plugs the output shaft opening, the inner side of the annular bulge is provided with the annular cylinder which protrudes upwards, the inner side wall of the annular cylinder encloses the output shaft channel, and the side wall of the output shaft channel is provided with the upper convex ring and the lower convex ring.

The electric shaver multilayer waterproof structure is characterized in that the upper cover is provided with the transmission shaft opening, the second shaft sealing rubber pad is arranged on the upper side of the transmission shaft opening and seals the transmission shaft opening, the middle part of the second shaft sealing rubber pad is provided with the arch part which protrudes downwards and plugs the transmission shaft opening, the middle part of the arch part is provided with the shaft sealing part, the shaft sealing part extends towards the transmission shaft and surrounds the transmission shaft channel, and the shaft sealing part is gradually inclined upwards in the direction towards the transmission shaft.

According to the multi-layer waterproof structure of the electric shaver, the shaft seal part is provided with the shaft seal upper convex ring and the shaft seal lower convex ring on the side wall of the transmission shaft channel.

According to the multi-layer waterproof structure of the electric shaver, the annular groove is formed in the outer side wall of the layer frame, and the sealing ring is arranged in the annular groove.

The multi-layer waterproof structure of the electric shaver is characterized in that an output gear and two transmission gears meshed with the output gear are arranged in the transmission gear cavity, the output gear is connected with the upper part of an output shaft of the motor, and the transmission gears are connected with the transmission shaft.

The multi-layer waterproof structure of the electric shaver is characterized in that the first shaft sealing piece, the second shaft sealing rubber pad, the annular sealing piece and the sealing ring are all integrated structures made of soft elastic materials.

Compared with the prior art, the utility model has the following advantages:

according to the electric shaver product, the layer frame, the upper cover, the sealing ring and the second sealing rubber pad surround the transmission gear cavity to form sealing, so that liquid is difficult to enter the transmission gear cavity, even if a small amount of liquid enters the transmission gear cavity, the liquid is difficult to enter the functional cavity because the layer frame and the first shaft sealing piece surround the functional cavity, meanwhile, the annular sealing piece is arranged between the upper cover and the main machine shell, so that the liquid is difficult to enter from the side face of the electric shaver, finally, the liquid is prevented from entering the functional cavity from different directions through the multi-layer waterproof structure, the electric devices in the functional cavity cannot contact the liquid, the waterproof performance of the powered electric shaver is improved, and the quality and the service life of the product are improved.

Drawings

Fig. 1 is a perspective view of an electric shaver of the present utility model;

fig. 2 is a cross-sectional view of the electric shaver of the present utility model;

fig. 3 is an exploded view of the electric shaver of the present utility model;

fig. 4 is an exploded view of the electric shaver of the present utility model;

FIG. 5 is a cross-sectional view of the annular seal of the present utility model;

FIG. 6 is a cross-sectional view of the first shaft seal of the present utility model;

fig. 7 is a cross-sectional view of a second seal cushion of the present utility model.

Detailed Description

The utility model is further described below with reference to the accompanying drawings:

the orientations described in the specification of the present utility model, such as "upper", "lower", "left", "right", "front", "rear", etc., are based on the orientations of the figures, and are for the purpose of describing relationships between components, and are not intended to indicate unique or absolute positional relationships between the components, but are merely one embodiment of the present utility model, and are not intended to limit embodiments thereof.

As shown in fig. 1, a multi-layer waterproof structure of an electric shaver, comprising a main housing 1, a functional module 2 is arranged in the main housing 1, a shaver head 3 is connected above the functional module 2, as shown in fig. 2 to 4, the functional module 2 comprises a bottom housing 21, a layer frame 22 arranged in the bottom housing 21, an upper cover 23 covered on the layer frame 22, a pressing plate 24 connected on the upper cover 23, the peripheral edge of the layer frame 22 is abutted against the inner side wall of the bottom housing 21 and is surrounded by the inner side wall and the outer side wall to form a functional cavity 210, a first shaft sealing member 25 is arranged at the top of the layer frame 22, the middle part of the first shaft sealing member 25 is provided with an output shaft channel 250 for the output shaft a1 of the motor a to pass upwards, the first shaft sealing member 25 surrounds and is tightly attached to the output shaft a1 of the motor, the top of the layer frame 22 is provided with a concave cavity 221, the upper cover 23 is covered on the layer frame 22 and is abutted against the inner side wall of the bottom housing 21 and is surrounded by the inner side wall, the second shaft sealing member 27 is sleeved with the sealing ring-shaped sealing member 27, the sealing ring-shaped sealing member 27 is sleeved on the outer side wall of the sealing shaft 23 is sleeved on the sealing shaft 23, the sealing ring-shaped sealing member 27 is sleeved on the sealing shaft 27 is sleeved on the outer side of the sealing shaft 23, and is sleeved on the sealing shaft surface of the sealing member 27, and is sleeved with the sealing ring-shaped sealing member 27, and the sealing member is sleeved on the sealing member, and the sealing member is formed by the sealing member, and the sealing member is made by a cover, and the sealing layer 21, and the sealing layer is made by and the sealing layer. The pressing plate 24 presses the annular sealing member 29 and the second sealing rubber pad 27 against the upper cover 23 from above, the inner side wall of the annular sealing member 29 is abutted against the outer side wall of the upper cover 23, and the outer side wall of the annular sealing member 29 is abutted against the inner side wall of the bottom shell 21. When the shaver head 3 is used, liquid such as tap water is easy to contact, the liquid can reach the transmission shaft 26 along the movable shaver and the transmission part, the layer frame 22, the upper cover 23, the sealing ring 28 and the second sealing rubber pad 27 surround the transmission gear cavity 220 to form a seal, so that the liquid is difficult to enter the transmission gear cavity 220, even if a small amount of liquid enters the transmission gear cavity 220, the functional cavity 210 is difficult to enter the functional cavity 210 due to the fact that the functional cavity 210 is surrounded by the inner side of the bottom shell 21, the layer frame 22 and the first shaft sealing member 25, meanwhile, the annular sealing member 29 is arranged between the upper cover 23 and the main machine shell 1, so that the liquid is difficult to enter the functional cavity 210 from different directions, and finally, the electric devices in the functional cavity 210 cannot be contacted with the liquid, so that the waterproof performance of the powered shaver is improved, and the quality and the service life of the product are improved.

Preferably, the annular sealing member 29 and the upper cover 23 are made into an integral structure by a double-shot molding process, so that the annular sealing member 29 and the upper cover are made into an integral structure, and the structure is more stable and has better waterproof performance.

As shown in fig. 2 and 5, as a more preferable embodiment, the outer side surface of the upper cover 23 is provided with a stepped shoulder 232, the inner side surface of the annular sealing member 29 is provided with a concave surface 291 matched with the shoulder 232, the outer side surface of the annular sealing member 29 is provided with a V-shaped clinging portion 292 which protrudes obliquely upwards and can cling to the inner side wall of the main casing 1, the outer side surface of the annular sealing member 29 is also provided with an arc clinging portion 293 which protrudes outwards and can cling to the inner side wall of the main casing 1, so that the inner side surface of the annular sealing member 29 and the upper cover 23 form a larger contact area, and meanwhile, the outer side surface of the annular sealing member 29 and the main casing 1 form a two-layer clinging sealing structure, so that the waterproof performance of the waterproof structure is higher and the waterproof stability is better.

As shown in fig. 2 and 5, further preferably, the outer side surface of the upper cover 23 is provided with a skirt portion 233 extending outwards and abutting against the inner side wall of the main casing 1, the skirt portion 233 is located below the shoulder 232, the bottom of the annular sealing member 29 abuts against the skirt portion 233, and the top of the annular sealing member 29 abuts against the pressing plate 24, so that the upper cover 23 can abut against the main casing 1, and the upper cover 23, the pressing plate 24 and the main casing 1 tightly enclose the annular sealing member 29, thereby improving the sealing performance.

As shown in fig. 2, 4 and 6, the shelf 22 is provided with an output shaft opening 222, the first shaft sealing member 25 is disposed at the output shaft opening 222 and covers the output shaft opening 222, the middle of the first shaft sealing member 25 is provided with an annular protrusion 251 protruding and plugging the output shaft opening 222, the inner side of the annular protrusion 251 of the first shaft sealing member 25 is provided with an annular cylinder 252 protruding upwards, the inner side wall of the annular cylinder 252 encloses the output shaft channel 250, the side wall of the output shaft channel 250 is provided with an upper protruding ring 253 and a lower protruding ring 254, the first shaft sealing member 25 is pressed on the shelf 22 by a pressing sheet, and of course, the first shaft sealing member 25 can also be connected by adopting a bonding connection mode or the like, the annular protrusion 251 plugs the output shaft opening 222, so that the contact area is increased, a certain pretightening force is provided between the first shaft sealing member 25 and the shelf 22, the degree of pretightening is improved, in addition, the output shaft 26 is surrounded by the upper protruding ring 253 and the lower protruding ring 254, and the liquid is difficult to flow into the interior of the output shaft a1 along the output shaft a1 in a multilayer waterproof mode.

As shown in fig. 2, 4 and 7, the upper cover 23 is provided with a transmission shaft opening 230, the second sealing rubber pad 27 is disposed on the upper side of the transmission shaft opening 230 and seals the transmission shaft opening 230, an arch portion 271 protruding downwards and plugging the transmission shaft opening 230 is disposed in the middle of the second sealing rubber pad 27, a shaft seal portion 272 is disposed in the middle of the arch portion 271, the shaft seal portion 272 extends towards the transmission shaft 26 and encloses the transmission shaft channel 270, the shaft seal portion 272 gradually inclines upwards in the direction towards the transmission shaft 26, the second sealing rubber pad 27 is pressed on the upper cover 23 by a pressing plate 24, the arch portion 271 plugs the transmission shaft opening 230 to increase the contact area, and meanwhile, a certain pretightening force is provided between the second sealing rubber pad 27 and the upper cover 23 to improve the adhesion degree. Preferably, as shown in fig. 7, the shaft seal portion 272 is provided with a shaft seal upper convex ring 273 and a shaft seal lower convex ring 274 on the side wall of the shaft passage 270 as a multi-layer waterproof structure so that the liquid is difficult to flow into the inside along the shaft 26.

As shown in fig. 2 and 4, in detail, the outer side wall of the layer frame 22 is provided with an annular groove 223, and the seal ring 28 is disposed in the annular groove 223, so as to increase the contact area between the seal ring 28 and the layer frame 22 to enhance the sealing performance.

As shown in fig. 2 and 4, in detail, the transmission gear cavity 220 is provided with an output gear 224 and two transmission gears 225 meshed with the output gear 224, the output gear 224 is connected to the upper part of the motor output shaft a1, and the transmission gears 225 are connected to the transmission shaft 26, so that the transmission connection between the output shaft a1 and the transmission shaft 26 is realized.

Preferably, the first shaft seal 25, the second shaft seal cushion 27, the annular seal 29 and the seal ring 28 are all made of a soft elastic material, preferably made of rubber or silica gel.

Preferably, as shown in fig. 3 and fig. 4, the main casing 1 is provided with a movable button 11, the movable button 11 is connected to a switch button of the control circuit board, a soft elastic waterproof gasket 12 is arranged between the movable button 11 and the main casing 1, and the waterproof gasket 12 blocks water from entering a gap between the movable button 11 and the main casing 1, so that the waterproof performance of the whole product is further improved.

The foregoing is merely exemplary embodiments of the present utility model, and specific structures and features that are well known in the art are not described in detail herein. It should be noted that modifications and improvements can be made by those skilled in the art without departing from the structure of the present utility model, and these should also be considered as the scope of the present utility model, which does not affect the effect of the implementation of the present utility model and the utility of the patent. The protection scope of the present utility model is subject to the content of the claims, and the description of the specific embodiments and the like in the specification can be used for explaining the content of the claims.

Claims (10)

1. An electric shaver multilayer waterproof structure which is characterized in that: including mainframe (1), mainframe (1) in be equipped with function module (2), function module (2) top be connected with razor tool bit (3), function module (2) including drain pan (21), layer frame (22) that set up in drain pan (21), lid establish upper cover (23) in layer frame (22) top, connect clamp plate (24) in upper cover (23) top, layer frame (22) all around the edge and lean on the inside wall of drain pan (21) and both enclose into a function chamber (210), function chamber (210) in be equipped with the motor, layer frame (22) top be equipped with first shaft seal (25), first shaft seal (25) middle part be equipped with output shaft passageway (250) that supply motor output shaft upwards to pass, layer frame (22) top be equipped with cavity (221), upper cover (23) cover enclose on layer frame (22) and with the lateral wall of cavity (221) one-tenth drive gear chamber (220), be equipped with in the drive gear chamber (220) and be equipped with in the motor output shaft (25) and seal top (27), the middle part of second axial seal cushion (27) be equipped with thereby supply transmission shaft (26) to pass transmission shaft passageway (270) of being connected with razor tool bit (3), upper cover (23) be equipped with around cover portion (231) on layer frame (22) lateral wall, cover portion (231) inside wall and layer frame (22) lateral wall between be equipped with sealing ring (28), the lateral wall of upper cover (23) on be equipped with annular seal (29), clamp plate (24) press second axial seal cushion (27) to upper cover (23) from the top, annular seal (29) lateral wall paste and lean on drain pan (21) inside wall.

2. The multi-layered waterproof structure of an electric razor according to claim 1, wherein: the annular sealing element (29) and the upper cover (23) are of an integrally formed integral structure.

3. The multi-layered waterproof structure of an electric razor according to claim 1, wherein: the upper cover (23) lateral surface be equipped with step shoulder (232), annular seal (29) medial surface be equipped with concave surface (291) that shoulder (232) match, annular seal (29) lateral surface be equipped with slope upwards stretch out and can lean on V type hug closely portion (292) of mainframe housing (1) inside wall, annular seal (29) lateral surface still be equipped with outwards outstanding circular arc hug closely portion (293) that can lean on mainframe housing (1) inside wall.

4. The multi-layered waterproof structure of an electric razor according to claim 1, wherein: the outer side surface of the upper cover (23) is provided with a skirt edge part (233) which extends outwards and abuts against the inner side wall of the main casing (1), the skirt edge part (233) is positioned below the shoulder part (232), the bottom of the annular sealing element (29) abuts against the skirt edge part (233), and the top of the annular sealing element (29) abuts against the pressing plate (24).

5. The multi-layered waterproof structure of an electric razor according to claim 1, wherein: the utility model provides a layer frame (22) on be equipped with output shaft opening (222), first shaft seal spare (25) set up at output shaft opening (222) and with output shaft opening (222) closing cap, first shaft seal spare (25) middle part be equipped with protrusion and cock output shaft opening (222) annular bulge (251), first shaft seal spare (25) be equipped with an annular cylinder (252) that upwards stretches out in annular bulge (251) inboard, annular cylinder (252) inside wall enclose into output shaft passageway (250), output shaft passageway (250) lateral wall on be equipped with upper convex ring (253) and lower floor convex ring (254).

6. The multi-layered waterproof structure of an electric razor according to claim 1, wherein: the upper cover (23) on be equipped with transmission shaft opening (230), second shaft seal cushion (27) set up in transmission shaft opening (230) upside and with transmission shaft opening (230) closing cap, second shaft seal cushion (27) middle part be equipped with arch portion (271) of downward bulge and cock transmission shaft opening (230), the middle part of arch portion (271) be equipped with shaft seal portion (272), shaft seal portion (272) stretch out and enclose into toward transmission shaft (26) transmission shaft passageway (270), shaft seal portion (272) in the direction of orientation transmission shaft (26) upwards slope gradually.

7. The multi-layered waterproof structure of an electric razor according to claim 6, wherein: the shaft seal part (272) is provided with a shaft seal upper convex ring (273) and a shaft seal lower convex ring (274) on the side wall of the transmission shaft channel (270).

8. The multi-layered waterproof structure of an electric razor according to claim 1, wherein: an annular groove (223) is formed in the outer side wall of the layer frame (22), and the sealing ring (28) is arranged in the annular groove (223).

9. The multi-layered waterproof structure of an electric razor according to claim 1, wherein: the transmission gear cavity (220) is internally provided with an output gear (224) and two transmission gears (225) which are meshed with the output gear (224), the output gear (224) is connected with the upper part of an output shaft of the motor, and the transmission gears (225) are connected with a transmission shaft (26).

10. The multi-layered waterproof structure of an electric razor according to claim 1, wherein: the first shaft sealing piece (25), the second shaft sealing rubber pad (27), the annular sealing piece (29) and the sealing ring (28) are all of an integrated structure made of soft elastic materials.