CN111035295A - Full-automatic back rubbing machine - Google Patents
Full-automatic back rubbing machine Download PDFInfo
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- CN111035295A CN111035295A CN202010139518.9A CN202010139518A CN111035295A CN 111035295 A CN111035295 A CN 111035295A CN 202010139518 A CN202010139518 A CN 202010139518A CN 111035295 A CN111035295 A CN 111035295A
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- connecting rod
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- back rubbing
- brush head
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47K—SANITARY EQUIPMENT NOT OTHERWISE PROVIDED FOR; TOILET ACCESSORIES
- A47K7/00—Body washing or cleaning implements
- A47K7/04—Mechanical washing or cleaning devices, hand or mechanically, i.e. power operated
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Abstract
The invention relates to a full-automatic back rubbing machine.A back rubbing module comprises a box body provided with a plurality of self-adaptive back rubbing units, brush heads of the self-adaptive back rubbing units extend out of the box body and can rotate, each self-adaptive back rubbing unit comprises a brush head, a connecting rod, a driving wheel and a self-adaptive telescopic device, the brush heads can reciprocate along the axial direction of the connecting rods relative to the self-adaptive telescopic devices along the axial direction of the connecting rods along with the connecting rods, and the driving wheels are arranged on the connecting rods and can drive the connecting rods to rotate through the driving wheels; when the connecting rod that drive arrangement adapted to the back rubbing unit separately through the drive wheel drive drives brush head and rotates, can stretch out and draw back in order to adjust the distance that each brush head stretches out the box automatically along the axial of connecting rod when each brush head receives the conflict of human back, make the brush homoenergetic on each brush head fully contact with human back, make the tip of each brush head can form the cambered surface that suits with human back shape according to the effort size of human back to the brush head, can carry out comprehensive self-cleaning to the back of human body.
Description
Technical Field
The invention relates to bathing equipment, in particular to a full-automatic back rubbing machine.
Background
People often feel worried about the incapability of rubbing the back by themselves when bathing and cleaning, and the back rubbing and cleaning can be effectively finished by the help of others. In order to facilitate the back rubbing of people during bathing, chinese patent publication No. CN204105850U discloses a "back rubbing machine for bathing in the rain", in which back rubbing disks and back rubbing rollers are provided, the back rubbing rollers on both sides can rub the feet and necks from armpits, and the back rubbing disk in the middle can rub the buttocks and rub the back while bathing. Although the 'back rubbing machine for showering and bathing' disclosed in the document can help people to rub the back during bathing, the back rubbing disc in the machine is not completely clean the back, and improvement is urgently needed.
Disclosure of Invention
The invention aims to provide a full-automatic back rubbing machine, which is used for solving the problem that the back of the existing back rubbing machine is not completely cleaned when in use.
In order to solve the problems, the invention provides a full-automatic back rubbing machine which comprises a back rubbing module capable of moving up and down along the vertical direction, wherein the back rubbing module comprises a box body provided with a plurality of self-adaptive back rubbing units, brush heads of the self-adaptive back rubbing units extend out of a front side plate of the box body and can rotate, and the brush heads of the self-adaptive back rubbing units are arranged on the front side plate of the box body in an array manner; the self-adaptive back rubbing unit comprises a brush head, a connecting rod, a driving wheel and a self-adaptive telescopic device, the brush head is connected with the self-adaptive telescopic device through the connecting rod, the brush head can move back and forth along the axis direction of the connecting rod relative to the self-adaptive telescopic device along with the connecting rod, and the driving wheel is installed on the connecting rod and can drive the connecting rod to rotate through the driving wheel; when the driving device drives the connecting rods which are respectively adaptive to the back rubbing units through the driving wheels to drive the brush heads to rotate, each brush head can automatically stretch and retract along the axial direction of the connecting rods when being collided by the back of a human body so as to adjust the distance of each brush head extending out of the box body, and the end part of each brush head can be fully contacted with the back of the human body.
The full-automatic back rubbing machine provided by the invention also has the following technical characteristics:
furthermore, a driving wheel supporting seat is fixed on the inner side of the front side plate, and a cylindrical cavity is formed in the middle of the driving wheel supporting seat; the cross section of connecting rod is regular polygon, the drive wheel with still be equipped with first connecting sleeve between the connecting rod, the middle part of first connecting sleeve be equipped with the cross section with the through-hole that the connecting rod suited, the drive wheel is fixed just be located on the first connecting sleeve and keep away from the one end of preceding curb plate, first connecting sleeve is installed just can be relative in the drive wheel supporting seat rotates.
Further, a bearing is further arranged between the driving wheel supporting seat and the first connecting sleeve so as to reduce the rotation resistance of the connecting rod.
Furthermore, the driving wheels are belt pulleys, and the belt pulley on the connecting rod of each self-adaptive back rubbing unit is connected with a driving motor in the box body through a belt; or the driving wheels are gears, the adjacent gears on the connecting rods are meshed with each other, and a driving motor for driving the gears to rotate is further arranged in the box body.
Further, a buffer spring is arranged between the brush head and the connecting rod.
Furthermore, the brush head is rectangular or oval, the distance between the connecting rods in the vertical direction and the distance between the connecting rods in the horizontal direction are equal, and the length of the brush head is larger than the distance between two adjacent connecting rods.
Furthermore, the self-adaptive telescopic device comprises a piston cylinder and a piston rod, the piston rod can reciprocate in the piston cylinder, the connecting rod is connected with the piston rod, and the piston cylinders of the self-adaptive back rubbing units are communicated with each other.
Furthermore, a return spring is also arranged in the piston cylinder.
Furthermore, a rotating connecting piece is further arranged between the connecting rod and the self-adaptive telescopic device and comprises a connecting bearing and a second connecting sleeve, the inner ring of the connecting bearing is fixed at the end part of the connecting rod, the outer ring of the connecting bearing is fixed in the second connecting sleeve, and the self-adaptive telescopic device is connected with the second connecting sleeve.
Furthermore, a plurality of spray heads for spraying bath foam, bath salt water or bath milk are arranged on the front side plate.
The invention has the following beneficial effects: through setting up the back of rubbing with the hands module that has a plurality of self-adaptation back of rubbing with the hands unit, the brush head that adapts to the back of rubbing with the hands unit separately still can be according to the automatic flexible of human back to the effort size of brush head when rotating, can make the brush homoenergetic on each brush head fully contact with human back from this for the tip of each brush head can form the cambered surface that suits with human back shape according to the effort size of human back to the brush head, can carry out comprehensive self-cleaning to the back of human body.
Drawings
Fig. 1 is a schematic structural diagram of a full-automatic back rubbing machine according to an embodiment of the present invention;
FIG. 2 is an enlarged view of a portion A of FIG. 1;
FIG. 3 is a front view of the back scrubbing module of FIG. 1;
FIG. 4 is a schematic diagram of an internal structure of a back rubbing module according to an embodiment of the present invention;
fig. 5 is a schematic view of an internal structure of a back rubbing module according to another view in the embodiment of the present invention;
FIG. 6 is an enlarged view of a portion B of FIG. 5;
fig. 7 is a schematic structural diagram of the adaptive back rubbing unit 10 according to the embodiment of the present invention;
fig. 8 is a sectional view of the adaptive back rubbing unit 10 in the embodiment of the present invention;
FIG. 9 is an enlarged partial view of portion C of FIG. 8;
FIG. 10 is an enlarged partial view of portion D of FIG. 8;
FIG. 11 is an enlarged partial view of section E of FIG. 8;
FIG. 12 is a schematic structural view of a driving wheel supporting seat according to an embodiment of the present invention;
figure 13 is a schematic view of a brush head configuration in an embodiment of the present invention.
Detailed Description
The invention will be described in detail hereinafter with reference to the accompanying drawings in conjunction with embodiments. It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.
In one embodiment of the full-automatic back rubbing machine of the present invention as shown in fig. 1 to 13, the full-automatic back rubbing machine of this embodiment includes a back rubbing module 100 which can move up and down along a vertical direction, the back rubbing module 100 includes a box 101 provided with a plurality of adaptive back rubbing units 10, brush heads 11 of the adaptive back rubbing units 10 extend out of a front side plate 102 of the box 101 and can rotate, and the brush heads 11 of the plurality of adaptive back rubbing units 10 are arranged in an array on the front side plate 102 of the box; the self-adaptive back rubbing unit 10 comprises a brush head 11, a connecting rod 12, a driving wheel 20 and a self-adaptive expansion device 30, wherein the brush head 11 is connected with the self-adaptive expansion device 30 through the connecting rod 12, the brush head 11 can move back and forth along the axis direction of the connecting rod 12 relative to the self-adaptive expansion device 30 along with the connecting rod 12, and the driving wheel 20 is installed on the connecting rod 12 and can drive the connecting rod 12 to rotate through the driving wheel 20; when the driving device drives the connecting rod 12 which is respectively adapted to the back rubbing unit 10 through the driving wheel 20 to drive the brush head 11 to rotate, the brush head 11 which is respectively adapted to the back rubbing unit 10 can automatically stretch and retract along the axial direction of the connecting rod 12 when being collided by the back of a human body so as to adjust the distance of each brush head 11 extending out of the box body 101, so that the end part of each brush head 11 can be fully contacted with the back of the human body. The utility model provides a full-automatic back rubbing machine rubs with hands through setting up the back rubbing module that has a plurality of self-adaptation back rubbing unit, the brush head that adapts to separately back rubbing unit still can be according to human back to the automatic flexible of effort size of brush head when the pivoted, can make the brush homoenergetic on each brush head fully contact with human back from this, make the tip of each brush head can form the cambered surface that suits with human back shape according to the effort size of human back to the brush head, can carry out comprehensive self-cleaning to the back of human.
In the above embodiment, as shown in fig. 1, two vertical guide rods 201 are further respectively arranged on two sides of the box 101, a guide block 103 with a guide hole is arranged on the box 101 and matched with the guide rods 201, a driving block 104 with a threaded hole is further arranged on a side wall of the box 101, a lead screw 202 is serially arranged in the threaded hole of the driving block 104, a driving motor 204 connected with the lead screw 202 to drive the lead screw 202 to rotate is further mounted on the bottom support plate 203, and the driving motor 204 drives the lead screw 202 to rotate so that the box 101 can move up and down along the guide rods 201, thereby enabling the box 101 to be adjusted in height as required; of course, in the above embodiments, other driving devices such as a rack, a cam or a linear motor may also be used to adjust the height of the box, and details are not described here.
In one embodiment of the present application, it is preferable that a driving wheel support base 21 is fixed to the inner side of the front side plate 102, and a cylindrical cavity is formed in the middle of the driving wheel support base 21; the cross section of the connecting rod 12 is a regular polygon such as a triquadrangle, a regular quadrangle, a regular pentagon, a regular hexagon, etc., and a regular hexagon is preferable in this embodiment; a first connecting sleeve 22 is further arranged between the driving wheel 20 and the connecting rod 12, a through hole with a cross section matched with that of the connecting rod 12 is formed in the middle of the first connecting sleeve 22, the driving wheel 20 is fixed on the first connecting sleeve 22 and located at one end far away from the front side plate 102, and the first connecting sleeve 22 is installed in the driving wheel supporting seat 21 and can rotate relative to the driving wheel supporting seat 21; specifically, the driving wheel 20 is fixed on the front side plate 102 of the box body 101 through the driving wheel supporting seat 21 and the first connecting sleeve 22, the driving wheel 20 can rotate relative to the front side plate 102 of the box body 101 along with the first connecting sleeve 22, and the distance between the driving wheel 20 and the front side plate 102 is kept unchanged; the cross section of the connecting rod 12 is a regular polygon and penetrates through the first connecting sleeve 22, so that the driving wheel can drive the connecting rod 12 to rotate through the first connecting sleeve 22 when rotating 20, and the connecting rod 12 can axially slide in the first connecting sleeve 22; in the embodiment, the connecting rod is arranged to be a regular polygon in cross section, and the middle part of the first connecting sleeve 22 is provided with the through hole with the cross section matched with that of the connecting rod 12, so that the connecting rod 12 can slide in the connecting sleeve 22 in a reciprocating manner along the axial direction, and the connecting rod connecting structure is simple and convenient to process; of course, other similar structures may be adopted by those skilled in the art, such as a sliding groove provided in the inner cavity of the first coupling sleeve, and a corresponding axial protrusion provided on the connecting rod, so that the connecting rod can slide in the first coupling sleeve along the axial direction and cannot rotate relative to the first coupling sleeve.
In one embodiment of the present application, preferably, a bearing 23 is further provided between the driving wheel supporting seat 21 and the first connecting sleeve 22 to reduce the rotation resistance of the connecting rod 12, and preferably, 2 bearings 23 are further provided between the driving wheel supporting seat 21 and the first connecting sleeve 22, thereby enabling the first connecting sleeve to reliably rotate in the driving wheel supporting seat 21 and ensuring that the central axis of the first connecting sleeve is perpendicular to the front side plate 102 of the case 101.
In one embodiment of the present application, preferably, the driving wheels 20 are belt pulleys, the belt pulleys on the connecting rods 12 of the respective back rubbing units 10 are connected to a driving motor in the box through belts, and when the driving motor rotates, the belt pulleys on the connecting rods 12 of the respective back rubbing units 10 can be driven to rotate through the belts, and the connecting rods 12 are driven to drive the brush heads 11 to rotate through the belt pulleys.
In another embodiment of the present application, it is preferable that the driving wheels 20 are gears, the gears on the adjacent connecting rods 12 are engaged with each other, and a driving motor for driving the gears to rotate is further disposed in the housing 101, when the driving motor rotates, the gears on the connecting rods 12 respectively adapted to the back rubbing unit 10 can be driven to rotate by the gears, and the connecting rods 12 are driven by the gears to drive the brush head 11 to rotate. Specifically, the gears on the adjacent connecting rods 12 can be directly meshed or indirectly meshed through intermediate transmission gears, when the gears on the adjacent connecting rods 12 are directly meshed, the rotating directions of the adjacent connecting rods 12 are opposite, and when the gears on the adjacent connecting rods 12 are meshed through 1 or 2 intermediate gears, the rotating directions of the adjacent two connecting rods 12 are the same or opposite; the direct engagement or the indirect engagement can be adopted to carry out design selection according to parameters such as the size of the brush head, the diameter of the connecting rods, the distance between the adjacent connecting rods and the like, and the details are not repeated; in one embodiment of the present application, as shown in fig. 5 and 6, the distances between the connecting rods 12 in the vertical direction and the horizontal direction are equal, the gears on the adjacent connecting rods 12 are directly meshed, the gear on the connecting rod 12 in the middle is meshed with the gears on the 4 adjacent connecting rods 12 in the upper, lower, left and right directions, and the rotating directions of the adjacent connecting rods are opposite, so that the transmission between the connecting rods is more reliable.
In another embodiment of the present application, preferably, a buffer spring 13 is further disposed between the brush head 11 and the connecting rod 12, so that the brush head has certain flexibility when rotating and axially extending and contracting along with the connecting rod, thereby improving comfort of the brush head in cleaning the back of a human body.
In another embodiment of the present application, the brush head 11 is preferably rectangular or oval, and the rectangular or oval brush head can make the cleaning ranges of the brush heads cross each other, so as to avoid the cleaning dead angle between adjacent brush heads and make the cleaning incomplete; specifically, the specific size and arrangement of the rectangular or oval brush heads 11 can be designed and selected according to the distance between the connecting rods, so that the adjacent brush heads can rotate simultaneously and the interference of the adjacent brush heads during rotation can be avoided. In one embodiment of the present application, the distance between each connecting rod 12 in the vertical direction and the horizontal direction is equal, and the length of the brush head 11 is greater than the distance between two adjacent connecting rods 12, specifically, the design of the length and the width of the brush head 11 needs to satisfy 2 adjustments: the cleaning areas of the adjacent brush heads during rotation are mutually crossed, so that no cleaning dead angle exists between the brush heads, and the adjacent brush heads do not interfere with each other during rotation, and the length, the width and the arrangement form of the brush heads are not repeated herein when the calculation design process is carried out according to the distance between the connecting rods. In this embodiment, the driving wheel 20 is preferably a gear, so that the rotation speed of each connecting rod 12 can be ensured to be the same, the rotation speed difference of each connecting rod caused by the abrasion of a belt and a belt pulley can not occur after long-term use, and the interference of the rotation of each brush head caused by the speed difference of the connecting rod due to the abrasion of the driving wheel can not occur.
In another embodiment of the present application, preferably, the adaptive expansion device 30 includes a piston cylinder 31 and a piston rod 32, the piston rod 32 is reciprocally movable in the piston cylinder 31, and the connecting rod 12 is connected to the piston rod 32, thereby allowing the connecting rod 12 to be reciprocally expandable and contractible relative to the adaptive expansion device 30 along the axial direction of the connecting rod 12. The piston cylinder 31 can be filled with hydraulic oil or compressed gas; preferably, the piston cylinder 31 is filled with compressed air; preferably, the piston cylinders 31 of the back rubbing units 30 which are respectively adapted to be communicated with each other through connecting pipes, when the back of a human body contacts with the brush head, the stressed brush head contracts towards the inside of the box body along with the connecting rod and the piston rod, hydraulic oil, compressed gas and compressed air in the corresponding piston cylinders are extruded and then flow towards the adjacent piston cylinders, so that the brush head which is not contacted with the back of the human body extends towards the outside of the box body, the length of the brush head extending out of the box body can be automatically adjusted according to the acting force of the back of the human body on the brush head, and the end part of each brush head can form an arc surface which is matched with the shape of.
In another embodiment of the present application, preferably, the adaptive expansion device 30 includes a piston cylinder 31 and a piston rod 32, the piston rod 32 can reciprocate in the piston cylinder 31, and a return spring 33 is further installed in the piston cylinder 32, so that the connecting rod 12 can reciprocate relative to the adaptive expansion device 30 along the axial direction of the connecting rod 12, and each brush head can automatically adjust the length of the brush head extending out of the box body according to the acting force of the human back on the brush head, so that the end of each brush head can form an arc surface adapted to the shape of the human back according to the acting force of the human back on the brush head.
In another embodiment of the present application, preferably, a rotary connector 40 is further disposed between the connecting rod 12 and the adaptive expansion device 30, the rotary connector 40 includes a connecting bearing 41 and a second connecting sleeve 42, an inner ring of the connecting bearing 41 is fixed at an end of the connecting rod 12, an outer ring of the connecting bearing 41 is fixed in the second connecting sleeve 42, and the adaptive expansion device 30 is connected to the second connecting sleeve 42, and specifically, the piston rod 32 of the adaptive expansion device 30 is connected to the second connecting sleeve 42, so that the piston rod 32 does not rotate when the connecting rod 12 rotates, i.e., the piston rod can move axially with the connecting rod but does not rotate with the connecting rod.
In another embodiment of the present application, preferably, a plurality of nozzles 105 for spraying bath foam, bath salt water or bath milk are further disposed on the front side plate 102, and specifically, a liquid supply pipe connected to the nozzles 105 is disposed in the box 101, and a liquid storage device is disposed in or outside the box, so that the brush head rotates to spray bath products to the back of the human body during cleaning of the back of the human body and according to requirements or a program, and comfort of a user when using the fully automatic bath machine is improved.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (10)
1. A full-automatic back rubbing machine comprises a back rubbing module capable of moving up and down along a vertical direction, and is characterized in that the back rubbing module comprises a box body provided with a plurality of self-adaptive back rubbing units, brush heads of the self-adaptive back rubbing units extend out of a front side plate of the box body and can rotate, and the brush heads of the self-adaptive back rubbing units are arranged on the front side plate of the box body in an array manner; the self-adaptive back rubbing unit comprises a brush head, a connecting rod, a driving wheel and a self-adaptive telescopic device, the brush head is connected with the self-adaptive telescopic device through the connecting rod, the brush head can move back and forth along the axis direction of the connecting rod relative to the self-adaptive telescopic device along with the connecting rod, and the driving wheel is installed on the connecting rod and can drive the connecting rod to rotate through the driving wheel; when the driving device drives the connecting rods which are respectively adaptive to the back rubbing units through the driving wheels to drive the brush heads to rotate, each brush head can automatically stretch and retract along the axial direction of the connecting rods when being collided by the back of a human body so as to adjust the distance of each brush head extending out of the box body, and the end part of each brush head can be fully contacted with the back of the human body.
2. The full-automatic back rubbing machine according to claim 1, characterized in that: a driving wheel supporting seat is fixed on the inner side of the front side plate, and a cylindrical cavity is formed in the middle of the driving wheel supporting seat; the cross section of connecting rod is regular polygon, the drive wheel with still be equipped with first connecting sleeve between the connecting rod, the middle part of first connecting sleeve be equipped with the cross section with the through-hole that the connecting rod suited, the drive wheel is fixed just be located on the first connecting sleeve and keep away from the one end of preceding curb plate, first connecting sleeve is installed just can be relative in the drive wheel supporting seat rotates.
3. The full-automatic back rubbing machine according to claim 2, characterized in that: and a bearing is further arranged between the driving wheel supporting seat and the first connecting sleeve so as to reduce the rotation resistance of the connecting rod.
4. The full-automatic back rubbing machine according to claim 1, characterized in that: the driving wheels are belt pulleys, and the belt pulley on the connecting rod of each self-adaptive back rubbing unit is connected with a driving motor in the box body through a belt; or the driving wheels are gears, the adjacent gears on the connecting rods are meshed with each other, and a driving motor for driving the gears to rotate is further arranged in the box body.
5. The full-automatic back rubbing machine according to claim 1, characterized in that: a buffer spring is arranged between the brush head and the connecting rod.
6. The full-automatic back rubbing machine according to claim 1, characterized in that: the brush head is rectangular or oval.
7. The full-automatic back rubbing machine according to claim 1, characterized in that: the self-adaptive telescopic device comprises a piston cylinder and piston rods, the piston rods can reciprocate in the piston cylinder, the connecting rods are connected with the piston rods, and the piston cylinders of the self-adaptive back rubbing units are communicated with each other.
8. The full-automatic back rubbing machine according to claim 1, characterized in that: the self-adaptive telescopic device comprises a piston cylinder and a piston rod, the piston rod can reciprocate in the piston cylinder, the connecting rod is connected with the piston rod, and a return spring is further arranged in the piston cylinder.
9. The full-automatic back rubbing machine according to claim 1, characterized in that: the connecting rod with still be equipped with the rotation connecting piece between the self-adaptation telescoping device, the rotation connecting piece is including connecting bearing and second adapter sleeve, the inner circle of connecting bearing is fixed the tip of connecting rod, the outer lane of connecting bearing is fixed in the second adapter sleeve, the self-adaptation telescoping device with the second adapter sleeve links to each other.
10. The full-automatic back rubbing machine according to claim 1, characterized in that: the front side plate is also provided with a plurality of spray heads for spraying bath foam, bath salt water or bath milk.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010139518.9A CN111035295A (en) | 2020-03-03 | 2020-03-03 | Full-automatic back rubbing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010139518.9A CN111035295A (en) | 2020-03-03 | 2020-03-03 | Full-automatic back rubbing machine |
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| Publication Number | Publication Date |
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| CN111035295A true CN111035295A (en) | 2020-04-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010139518.9A Pending CN111035295A (en) | 2020-03-03 | 2020-03-03 | Full-automatic back rubbing machine |
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| CN (1) | CN111035295A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113876225A (en) * | 2021-10-15 | 2022-01-04 | 中国地质大学（武汉） | Human body back bathing device, seat and bathing control method |
| US11412899B1 (en) * | 2020-06-16 | 2022-08-16 | Reginald Frisby | Back and shoulder washing machine |
-
2020
- 2020-03-03 CN CN202010139518.9A patent/CN111035295A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11412899B1 (en) * | 2020-06-16 | 2022-08-16 | Reginald Frisby | Back and shoulder washing machine |
| CN113876225A (en) * | 2021-10-15 | 2022-01-04 | 中国地质大学（武汉） | Human body back bathing device, seat and bathing control method |
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