CN212816020U - Water pressure driven bathing nursing brush convenient for replacing brush head - Google Patents

Abstract

The utility model discloses a water pressure driven bathing nursing brush convenient for replacing a brush head, which comprises a handle and a spray head; a water inlet nozzle is arranged inside the handle; an impeller is arranged inside the spray head; the water inlet nozzle sprays water on the impeller to drive the impeller to rotate; the impeller is provided with a sun wheel; the sun wheel drives the speed reducer to rotate; the lower end of the speed reducer is provided with a brush head interface; the brush head interface is connected with a brush head; a D-shaped hole shaft of the brush head is arranged at the axis of the brush head; the brush head interface is provided with a D-shaped long round hole which is matched with the D-shaped hole shaft of the brush head and is used for accommodating the brush head; the D-shaped hole shaft of the brush head is assembled with the D-shaped long round hole for installing the brush head at the interface of the brush head and is fixed by the quick-connection device. The brush head is driven to rotate by utilizing the self water pressure of tap water, so that the driving force of a power supply is avoided, and the energy is saved and the safety is improved; the rotational speed of the brush head is reduced by using the speed reduction transmission of the planetary gear, so that the torque is increased and the brush head is not easy to slip; the quick-connection joint is adopted, and the brush head is simple and quick to assemble and disassemble.

Description

Water pressure driven bathing nursing brush convenient for replacing brush head

Technical Field

The utility model relates to a bathing nursing brush which can quickly replace a brush head as required and drives the brush head to rotate by utilizing water pressure.

Background

According to market research, in order to reduce labor intensity and improve comfort, a certain percentage of users use various brushes to clean skin or hair while bathing people or pets. The majority of manual brushes with long handles use wooden or plastic handles and are matched with brush heads made of various materials. The manual brush is inconvenient to operate and high in labor intensity when in use, and a user feels fatigue in a short time. In order to reduce labor intensity, some designers try to introduce brushes driven by various powers to solve the problem, for example, the patent number "CN 02213667" utility model patent "electric soft shaft type bathing brush" uses a micro motor to connect a soft shaft to drive a rotary brush head to perform bathing and head washing work; the "electric bathing brush" of utility model "CN 201621463770" uses a micro motor to drive a vibrating brush head to take a bath or rub a body, and other pet brushes that use a motor to drive a brush head and can squeeze water out of the brush head, etc. In view of the design of these prior bath brushes, their drawbacks and disadvantages are mainly:

1. the design of realizing brush head rotation or vibration by using a power supply driving motor always gives a sense of not safety when used in a water environment, and even though manufacturers emphasize that the power supply is safe and has extremely low voltage, the worry cannot be completely eliminated;

2. no water is sprayed from the corresponding position or additional action is required to spray water while the brush head is rotating. Of course, users generally wet the skin or apply detergent in advance, but the use time is a little longer, the bathing brush can be dry-rubbed when the brush head rotates, the bathing brush is a bad experience for the skin or hair of the users, and even can cause a certain degree of injury in serious cases;

3. the bath brush is used for cleaning after being brushed and then is flushed again by water, so that the use of the appliance is very complicated and inconvenient for users, and the inconvenience of the operation limits the use and popularization of the bath brush.

Disclosure of Invention

The utility model discloses the purpose is: provides a bathing brush which can quickly change a brush head according to different use requirements and utilizes the water pressure of tap water to drive the brush head to rotate. The water pressure of city tap water when a user takes a bath is utilized to drive the brush head to rotate so as to bring people or pets with bath, wash the head, rub the back, wash feet, massage and the like, and water can be sprayed out from the brush head and wash the skin surface of the people or pets while the brush head rotates, so that the aims of reducing the operation strength, eliminating fatigue and improving the working efficiency are fulfilled.

The technical scheme of the utility model is that: a water pressure driven bathing nursing brush convenient for replacing a brush head comprises a handle and a spray head; a water inlet nozzle is arranged inside the handle; the handle is connected with the spray head; an impeller is arranged in the spray head; the water inlet nozzle sprays water on the impeller to drive the impeller to rotate; the impeller is provided with a sun wheel; the sun wheel drives the speed reducer to rotate; the lower end of the speed reducer is provided with a brush head interface; the brush head interface is connected with a brush head; a plurality of water outlet holes are formed in the brush head; a D-shaped hole shaft of the brush head is arranged at the axis of the brush head; the brush head interface is provided with a D-shaped long round hole which is matched with the D-shaped hole shaft of the brush head and is used for accommodating the brush head; the D-shaped hole shaft of the brush head is assembled with the D-shaped long round hole for installing the brush head at the interface of the brush head and is fixed by the quick-connection device.

Preferably, the quick connection device comprises a clamping hole and a buckle; clamping holes are formed in two sides of the D-shaped long round hole for containing the brush head; buckles are arranged on two sides of the D-shaped hole shaft of the brush head; the buckle is clamped with the clamping hole.

Preferably, the speed reducer is a planetary speed reducer; the speed reducer comprises a speed reduction turntable and a planetary gear; the speed reduction turntable is arranged in a cavity of the speed reducer; an inner gear ring is arranged on the inner arm of the cavity of the speed reducer; a gear shaft is arranged on the upper side of the speed reduction turntable; the gear shaft is provided with a planetary gear; a brush head interface is arranged at the lower side of the speed reduction turntable; the sun gear drives the planet gear to rotate; the planetary gear is meshed with the inner gear ring to drive the speed reduction turntable to rotate.

Preferably, the number of the planetary gears is at least two.

Preferably, an impeller bearing seat is arranged inside the spray head; the impeller is provided with a bearing sleeve; the impeller bearing seat is arranged in a bearing sleeve of the impeller.

Preferably, the diameter of the water inlet nozzle is gradually reduced in the direction of water flow.

Preferably, a D-shaped long circular hole is formed in the axis of the lower part of the impeller; the upper part of the sun gear is provided with a D-shaped hole shaft; and the D-shaped hole shaft is assembled with the D-shaped long round hole.

The utility model has the advantages that:

1. the water pressure of tap water is utilized to drive the brush head to rotate, so that the electric leakage phenomenon possibly generated by using the driving force of a power supply is avoided, the energy is saved, and the use safety is improved;

2. the brush head rotates and water can wash the cleaning surface, so that the labor intensity of a user is reduced; the cleaning and massage can be performed for people or pets, and simultaneously, the fatigue can be eliminated and the working efficiency can be improved;

3. the rotational speed of the brush head is reduced by utilizing the speed reduction transmission of the planetary gear, so that the use safety is improved, the torque of the brush head is correspondingly increased while the rotational speed is reduced, so that the brush head is not easy to slip, and the working efficiency during operation is improved;

4. the rotary brush head adopts a quick joint, so that the brush head can be conveniently replaced according to different use requirements, and the brush head is simple and quick to assemble and disassemble.

Drawings

The invention will be further described with reference to the following drawings and examples:

FIG. 1 is a schematic view of the overall structure of a water pressure driven bathing and nursing brush according to the present invention;

FIG. 2 is a schematic view of the internal structure of a water pressure driven bathing brush according to the present invention;

FIG. 3 is an enlarged view taken at A in FIG. 2;

FIG. 4 is an assembly view of the impeller and sun gear of the water pressure driven bathing brush;

FIG. 5 is a schematic view of the impeller structure of a water pressure driven bathing brush according to the present invention;

FIG. 6 is a schematic view of a sun gear of a water pressure driven bathing brush according to the present invention;

FIG. 7 is a schematic view of the overall structure of a decelerator of a water pressure driven bathing brush according to the present invention;

FIG. 8 is a schematic view of the internal structure of a decelerator of a water pressure driven bathing brush according to the present invention;

FIG. 9 is an enlarged view at B in FIG. 8;

FIG. 10 is a schematic view of the structure of the reduction rotary disk and the planetary gear of the water pressure driven bathing care brush;

FIG. 11 is a schematic view showing the structure of the sun gear and the planetary gear of the water pressure driven bathing brush;

FIG. 12 is a schematic view of a brush head of a water pressure driven bathing brush according to the present invention;

FIG. 13 is a schematic view of an assembly structure of a brush head and a brush head interface of a water pressure driven bathing care brush according to the present invention;

wherein: 1. a handle; 2. a spray head; 3. a brush head; 11. A water inlet nozzle; 12. connecting a water pipe; 13. an anti-skid device; 21. an impeller; 22. a sun gear; 23. a speed reducer; 24. a brush head interface; 31. a water outlet hole; 32. a D-shaped bore axis of the brush head; 33. buckling; 211. an impeller bearing seat; 212. a bearing housing; 213. a D-shaped long circular hole; 221. a D-shaped bore shaft; 231. a deceleration rotating disc; 232. a planetary gear; 233. a gasket; 234. a cavity box; 235. a box cover; 236. a central bore; 237. a joint shaft hole; 238. an inner gear ring; 239. a gear shaft; 241. a D-shaped long round hole for installing the brush head; 242. and (6) clamping the hole.

Detailed Description

Example (b):

as shown in the attached figures 1-13, a water pressure driven bathing and nursing brush comprises a handle 1 and a spray head 2; a water inlet nozzle 11 is arranged inside the handle 1; in the direction of water flowing through, the diameter of the water inlet nozzle 11 is gradually reduced, so that more power of water spraying is ensured; the rear end of the water inlet nozzle 11 is provided with a connecting water pipe 12, and the rear end of the connecting water pipe 12 is provided with threads to facilitate external water pipe connection; a sealing ring is arranged between the water inlet nozzle 11 and the connecting water pipe 12; the connecting water pipe 12 and the handle 1 are directly fixed in a buckling mode; the handle 1 is connected with the spray head 2; an impeller 21 is arranged inside the spray head 2; an impeller bearing seat 211 is arranged in the nozzle 2; a thin bearing sleeve 212 is arranged on the impeller 21; the impeller bearing seat 211 is sleeved in a bearing sleeve 212 of the impeller, so that the friction force generated when the impeller 21 rotates is reduced; the water inlet nozzle 11 sprays tap water on the impeller 21, and the impeller 21 is driven to rotate by the pressure of the tap water; the impeller 21 is provided with a sun gear 22; the sun gear 22 drives the speed reducer 23 to rotate; a D-shaped long round hole 213 is formed in the lower axis of the impeller 21; the upper part of the sun gear 22 is provided with a D-shaped hole shaft 221; the D-shaped hole shaft 221 is tightly assembled with the D-shaped long round hole 213; the assembly is quick, and the sun wheel 22 and the impeller 21 have the same movement trend; the lower end of the speed reducer 23 is provided with a brush head interface 24; the brush head interface 24 is connected with the brush head 3, and the speed reducer 23 drives the brush head 3 to rotate; the brush head 3 is provided with a plurality of water outlet holes 31, water is sprayed out from the water outlet holes 31, and the brush head 3 can clean the skin surface of people or pets while rotating, cleaning and massaging; the upper part of the spray head 2 is also provided with a water outlet hole 31; a water outlet hole 31 at the upper part of the spray head 2 is provided with a grinding stone; an anti-skid device 13 is arranged outside the handle 1, so that the handle is anti-skid and comfortable when being held by hands; the brush head 3 can be made of different materials, such as a hairbrush, a rubber brush head and the like, and the plurality of brush heads 3 can be used by different people or pets.

The speed reducer 23 is a planetary speed reducer; the speed reducer 23 comprises a speed reduction turntable 231 and a planetary gear 232; the speed reducer 23 is fixed in the spray head 2; the speed reducer 23 is fixedly connected by screws; the speed reduction turntable 231 is arranged in the cavity of the speed reducer 23, and the cavity of the speed reducer 23 comprises an upper cavity box 234 and a lower box cover 235; a central hole 236 is arranged in the center of the upper part of the cavity box 234; the sun gear 22 extends into the speed reducer 23 from the central hole 236; the bearings and central bore 236 of the impeller 21 provide some axial and radial positioning of the impeller; a joint shaft hole 237 is formed in the center of the box cover 235; the cover 235 is used to maintain the relative positions of the planetary gear system and the brush head interface 24, and screws are passed through the chamber box 234 and the cover 235 to tightly connect them to the inside of the head 2; an inner gear ring 238 is arranged on the inner arm of the cavity of the speed reducer 23; a gear shaft 239 is arranged on the upper side of the speed reduction turntable 231; the gear shaft 239 is provided with three planetary gears 232, in this example, the number of the planetary gears 232 is three; a brush head interface 24 is arranged at the lower side of the speed reducing turntable 231; the brush head interface 24 extends out of the cavity of the speed reducer 23 from the joint shaft hole 237; the joint shaft hole 237 plays a certain bearing support function; the sun gear 22 drives the planetary gears 232 to rotate at the centers of the three planetary gears 232; the planetary gear 232 is meshed with the inner gear ring 238 to drive the speed reduction turntable 231 to rotate; a washer 233 is provided between the upper portion of the planetary gear 231 and the cavity of the speed reducer 23.

The axis of the brush head 3 is provided with a D-shaped hole shaft 32 of the brush head; the brush head interface 24 is provided with a D-shaped long round hole 241 for installing the brush head, which is matched with the D-shaped hole shaft 32 of the brush head; the D-shaped hole shaft 32 of the brush head and the D-shaped long round hole 241 of the brush head are assembled to be used for axial positioning and fixed by a quick connection device; the quick connection device is simple and convenient in assembling or replacing the brush head; the quick-connection device comprises a clamping hole 242 and a clamping buckle 33; clamping holes 242 are formed in two sides of the D-shaped long round hole 241 for containing the brush head; elastic sheet type buckles 33 are arranged on two sides of the D-shaped hole shaft 32 for mounting the brush head; the elastic sheet type buckle 33 is clamped with the clamping hole 242 and can be loosened by pressing hard when needed.

When the water pressure driven bathing nursing brush is used, the connecting water pipe 12 is connected with the external water pipe, the required brush head 3 is selected and is installed on the brush head connector 24 to be clamped, the brush head is fastened and is not easy to loosen, then the external water pipe starts to feed water, the water sprayed from the water inlet nozzle 11 is directly sprayed onto the impeller 21, the impeller 21 is driven to rotate by the self pressure of tap water, the impeller 21 rotates to drive the sun gear 22 to rotate, the planetary gear 232 rotates along with the sun gear 22 and is simultaneously meshed with the inner gear ring 238 to drive the speed reduction turntable 231 to rotate, the brush head 3 is driven to rotate, and the water is sprayed out from the water outlet hole 31; if the rotating speed of the brush head 3 is too high and is harmful to the skin, the rotating speed of the brush head 3 is reduced by the speed reduction transmission of the planetary gear 232, so that the use safety is improved, the torque of the brush head 3 is correspondingly increased while the rotating speed is reduced, so that the brush head is not easy to slip, and the working efficiency during operation is improved. When the brush head 3 is replaced, the brush head can be loosened by pressing forcibly. The spray head 2 and the handle 1 can be of an integral structure, but are assembled by an upper shell and a lower shell; the upper shell and the lower shell can be connected by welding or screws. The electric leakage protection device can be used by different people or pets, avoids the electric leakage hidden danger of electric drive, and is safe, environment-friendly, convenient to use, flexible and convenient.

The above embodiments are merely illustrative of the principles and effects of the present invention, and are not to be construed as limiting the invention. Modifications and variations can be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which may be made by those skilled in the art without departing from the spirit and technical concepts of the present invention be covered by the claims of the present invention.

Claims (7)

1. The utility model provides a water pressure driven brush of nursing of bathing convenient to change brush head which characterized in that: comprises a handle and a spray head; a water inlet nozzle is arranged inside the handle; the handle is connected with the spray head; an impeller is arranged in the spray head; the water inlet nozzle sprays water on the impeller to drive the impeller to rotate; the impeller is provided with a sun wheel; the sun wheel drives the speed reducer to rotate; the lower end of the speed reducer is provided with a brush head interface; the brush head interface is connected with a brush head; a plurality of water outlet holes are formed in the brush head; a D-shaped hole shaft of the brush head is arranged at the axis of the brush head; the brush head interface is provided with a D-shaped long round hole which is matched with the D-shaped hole shaft of the brush head and is used for accommodating the brush head; the D-shaped hole shaft of the brush head is assembled with the D-shaped long round hole for installing the brush head at the interface of the brush head and is fixed by the quick-connection device.

2. A water pressure driven bath care brush with easy replacement of brush head as claimed in claim 1 wherein: the quick connection device comprises a clamping hole and a buckle; clamping holes are formed in two sides of the D-shaped long round hole for accommodating the brush head; buckles are arranged on two sides of the D-shaped hole shaft of the brush head; the buckle is clamped with the clamping hole.

3. A water pressure driven bath care brush with easy replacement of brush head as claimed in claim 1 wherein: the speed reducer is a planetary speed reducer; the speed reducer comprises a speed reduction turntable and a planetary gear; the speed reduction turntable is arranged in a cavity of the speed reducer; an inner gear ring is arranged on the inner arm of the cavity of the speed reducer; a gear shaft is arranged on the upper side of the speed reduction turntable; the gear shaft is provided with a planetary gear; a brush head interface is arranged at the lower side of the speed reduction turntable; the sun gear drives the planet gear to rotate; the planetary gear is meshed with the inner gear ring to drive the speed reduction turntable to rotate.

4. A water pressure driven bath care brush with easy replacement of brush head as claimed in claim 3 wherein: the planetary gears are at least two.

5. A water pressure driven bath care brush with easy replacement of brush head as claimed in claim 1 wherein: an impeller bearing seat is arranged in the spray head; the impeller is provided with a bearing sleeve; the impeller bearing seat is arranged in a bearing sleeve of the impeller.

6. A water pressure driven bath care brush with easy replacement of brush head as claimed in claim 1 wherein: the diameter of the water inlet nozzle is gradually reduced in the water flowing direction.

7. A water pressure driven bath care brush with easy replacement of brush head as claimed in claim 1 wherein: a D-shaped long circular hole is formed in the axis of the lower part of the impeller; the upper part of the sun wheel is provided with a D-shaped hole shaft; and the D-shaped hole shaft is assembled with the D-shaped long round hole.

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