阅读说明：本技术 一种浴室用自动搓背椅 (Automatic back rubbing chair for bathroom ) 是由 王建波 李天乐 花锐东 徐淑媛 范雷金 肖庆 樊辉 于 2020-05-15 设计创作，主要内容包括：本发明属于机械电气控制领域,涉及一种自动搓洗背部的装置,本发明公开一种浴室用自动搓背椅,包括底部支撑机构、设置于底部支撑机构上方的升降机构、设置于升降机构上方的搓澡机构、设置于搓澡机构外围的防水罩壳；所述底部支撑机构包括底部框架、设置在底部框架四周的四支撑腿及设置在前端面的两支撑腿之间的两辅助支腿；底部框架的前端侧设置有一坐板,坐板固定设置两辅助支腿上,坐板两侧分别设置有一扶手；本发明通过升降机构调节高度,适用于不同高度的人群,同时配合搓澡机构,上下搓洗,搓洗范围更大,可以人为调节搓洗的面积,更加人性化和智能化,提高了搓洗的质量。本发明占地空间小,易存放,且价格比市场上的智能搓洗设备更实惠。(The invention belongs to the field of mechanical and electrical control, and relates to an automatic back scrubbing device, and discloses an automatic back scrubbing chair for a bathroom, which comprises a bottom supporting mechanism, a lifting mechanism arranged above the bottom supporting mechanism, a scrubbing mechanism arranged above the lifting mechanism, and a waterproof housing arranged at the periphery of the scrubbing mechanism; the bottom support mechanism comprises a bottom frame, four support legs arranged on the periphery of the bottom frame and two auxiliary support legs arranged between the two support legs on the front end face; a seat plate is arranged at the front end side of the bottom frame, the seat plate is fixedly arranged on the two auxiliary supporting legs, and handrails are respectively arranged at the two sides of the seat plate; the height of the invention is adjusted by the lifting mechanism, the invention is suitable for people with different heights, and the invention is matched with the scrubbing mechanism to scrub up and down, the scrubbing range is larger, the scrubbing area can be adjusted manually, the invention is more humanized and intelligent, and the scrubbing quality is improved. The invention has small occupied space, is easy to store, and has more substantial price than the intelligent scrubbing equipment on the market.)

1. An automatic back rubbing chair for a bathroom is characterized by comprising a bottom supporting mechanism, a lifting mechanism arranged above the bottom supporting mechanism, a rubbing mechanism arranged above the lifting mechanism, and a waterproof housing arranged at the periphery of the rubbing mechanism;

the bottom support mechanism comprises a bottom frame, four support legs arranged on the periphery of the bottom frame and two auxiliary support legs arranged between the two support legs on the front end face; a seat plate is arranged on the front end side of the bottom frame, the seat plate is fixedly arranged on the two auxiliary supporting legs, and two handrails are arranged on two sides of the seat plate respectively;

the lifting mechanism is arranged at the rear end of the seat plate and comprises a mounting plate fixed on the bottom frame, a first vertical fixing plate, two scissor mechanisms arranged above the mounting plate and arranged in parallel, a lifting plate arranged above the two scissor mechanisms, a first driving motor fixed on the mounting plate, two guide pillars fixed on the mounting plate and an upright post fixed on the bottom frame, the lower ends of the two guide pillars are fixed on the mounting plate, the two guide pillars are slidably connected to the lifting plate, and the upper ends of the two guide pillars and the upper end of the upright post are fixed through a triangular plate; the upper end of the mounting plate is further provided with a second vertical fixing plate, the front side and the rear side between the first vertical fixing plate and the second vertical fixing plate are respectively provided with two lower optical axes, the left side and the right side of the lower end of the lifting plate are provided with a third vertical fixing plate and a fourth vertical fixing plate, the front side and the rear side of the third vertical fixing plate and the fourth vertical fixing plate are respectively fixed with two upper optical axes, the left side ends of the two lower optical axes and the left side ends of the two upper optical axes are both connected with a connecting block in a sliding manner, an output shaft of the first driving motor is connected with a ball screw rod through a coupler, the other end of the ball screw rod is rotatably connected onto the first vertical fixing plate, the ball screw rod is connected with a screw nut in a meshing manner, a movable plate is fixedly connected onto the screw nut; the upper ends and the lower ends of the right sides of the two scissor mechanisms are hinged to a second vertical fixing plate and a fourth vertical fixing plate, and the upper ends and the lower ends of the left sides of the two scissor mechanisms are hinged to connecting blocks at the left ends of the two lower optical shafts and the two upper optical shafts; a waterproof folding curtain is arranged between the first vertical fixing plate and the third vertical fixing plate;

the scrubbing mechanism comprises a vertical frame fixed on one side of the lifting plate, a plurality of linear slide rails arranged in parallel and fixed on the vertical frame, a plurality of scrubbing panels respectively connected to the linear slide rails in a sliding manner, and a second driving motor fixedly installed on one side of the vertical frame; the back end face of each rubbing panel drives the rubbing panel to slide on the linear slide rail through a driving rod, and the second driving motor is connected with the driving rod through a driving mechanism.

2. The automatic back rubbing chair for bathroom as claimed in claim 1, wherein the mounting plate comprises a flat plate and two vertical plates provided at both sides of the upper end of the flat plate, and the lifting plate comprises a flat plate and two vertical plates provided at both sides of the lower end of the flat plate.

3. The automatic back rubbing chair for bathroom as claimed in claim 1, wherein each of the scissors mechanisms comprises 1 or more sets of cross structures arranged from top to bottom, each cross structure comprises two elongated rods connected with each other at a middle position, and the elongated rods of the cross structures are hinged at upper and lower positions.

4. The automatic back rubbing chair for bathrooms as claimed in claim 1, wherein the number of the linear slide rails is 3, the number of the driving rods is 3, and the number of the rubbing panels is 3.

5. The automatic back rubbing chair for the bathroom as claimed in claim 4, wherein the driving mechanism is configured as a crankshaft driving mechanism, the crankshaft driving mechanism comprises four bearings with seats fixed on the lifting plate and arranged in parallel, two L-shaped plates are symmetrically arranged between every two bearings with seats, the bearings with seats are connected with the adjacent L-shaped plates through first connecting shafts, two L-shaped plates between every two bearings with seats are connected through second connecting shafts, the driving rod is connected on the second connecting shafts through a bearing, the second driving motor is driven through the first connecting shaft on the rightmost side of the coupling connection crankshaft driving mechanism, and the driving rod is fixedly connected with the bearings.

6. The automatic back rubbing chair for bathroom as claimed in claim 1, wherein the rear end surface of the rubbing panel is connected to a panel base through a plurality of connecting pins and a spring sleeved on each connecting pin, a chute adapted to the linear slide rail is fixedly arranged on the panel base, two mounting blocks are symmetrically fixed on both sides of the chute on the rear end surface of the panel base, and the two mounting blocks are hinged to the upper end of the driving rod.

7. The automatic back rubbing chair for the bathroom as claimed in claim 6, wherein a rubbing cloth is detachably connected to the rubbing panel, and an inner layer elastic body is arranged in the rubbing cloth.

8. The automatic back rubbing chair for bathroom as claimed in claim 1, wherein the waterproof case is provided with a waterproof curtain on a side facing the rubbing panel, the waterproof curtain being provided with an opening for the driving rod to move up and down.

9. The automatic back rubbing chair for bathroom as claimed in claim 1, wherein a guard plate is provided at the outer ends of two of the plurality of rubbing panels, and the angle between the guard plate and the rubbing panel is 160 °.

10. The automatic back rubbing chair for the bathroom as claimed in claim 1, wherein a control panel is provided on one of the armrests, the control panel is connected to a control box, the control panel is provided with a plurality of control keys for controlling the start and stop of the first driving motor and the second driving motor, the control box is provided therein with a motor control circuit for controlling the start and stop and forward and reverse rotation of the first driving motor and the second driving motor, a single chip connected to the motor control circuit, and a power supply for supplying power to the entire automatic back rubbing chair; and the control keys are connected with the singlechip.

Technical Field

The invention belongs to the field of mechanical and electrical control, relates to a device for automatically rubbing and washing the back, and particularly relates to an automatic back rubbing chair for a bathroom.

Background

With the continuous progress of society and the continuous improvement of medical level, the number of the elderly people in China is increased year by year. The less time many young and old people come together. Regular bathing is a basic requirement for keeping personal hygiene, but the old people have many potential safety hazards such as slippage, long-term body fatigue and the like when bathing alone, and the problem of difficult bathing during bathing; with the aging, the aging of body functions, the stiffness of joints, the poor flexibility and the like, most of the old aged over 60 years are refused to enter the bathroom independently. Bathing the elderly is difficult for many households. The prior bath chair has the following problems, such as: the patent names are: a sitting type automatic bath machine, wherein an air cylinder push rod is required in patent with publication number 107280551A, so that an air source is difficult to obtain and the noise is large in a household; the patent names are: a back rubbing machine with multiple working modes for bathing is disclosed in the patent No. 201710773108.8, which is too complex and expensive to manufacture.

Disclosure of Invention

The purpose of the invention is as follows: aiming at the defects in the prior art, the invention aims to provide an automatic back rubbing chair for a bathroom.

In order to solve the technical problem, an embodiment of the invention provides an automatic back rubbing chair for a bathroom, which is characterized by comprising a bottom supporting mechanism, a lifting mechanism arranged above the bottom supporting mechanism, a rubbing mechanism arranged above the lifting mechanism, and a waterproof housing arranged at the periphery of the rubbing mechanism;

the bottom support mechanism comprises a bottom frame, four support legs arranged on the periphery of the bottom frame and two auxiliary support legs arranged between the two support legs on the front end face; a seat plate is arranged on the front end side of the bottom frame, the seat plate is fixedly arranged on the two auxiliary supporting legs, and two handrails are arranged on two sides of the seat plate respectively;

the lifting mechanism is arranged at the rear end of the seat plate and comprises a mounting plate fixed on the bottom frame, a first vertical fixing plate, two scissor mechanisms arranged above the mounting plate and arranged in parallel, a lifting plate arranged above the two scissor mechanisms, a first driving motor fixed on the mounting plate, two guide pillars fixed on the mounting plate and an upright post fixed on the bottom frame, the lower ends of the two guide pillars are fixed on the mounting plate, the two guide pillars are slidably connected to the lifting plate, and the upper ends of the two guide pillars and the upper end of the upright post are fixed through a triangular plate; the upper end of the mounting plate is further provided with a second vertical fixing plate, the front side and the rear side between the first vertical fixing plate and the second vertical fixing plate are respectively provided with two lower optical axes, the left side and the right side of the lower end of the lifting plate are provided with a third vertical fixing plate and a fourth vertical fixing plate, the front side and the rear side of the third vertical fixing plate and the fourth vertical fixing plate are respectively fixed with two upper optical axes, the left side ends of the two lower optical axes and the left side ends of the two upper optical axes are both connected with a connecting block in a sliding manner, an output shaft of the first driving motor is connected with a ball screw rod through a coupler, the other end of the ball screw rod is rotatably connected onto the first vertical fixing plate, the ball screw rod is connected with a screw nut in a meshing manner, a movable plate is fixedly connected onto the screw nut; the upper ends and the lower ends of the right sides of the two scissor mechanisms are hinged to a second vertical fixing plate and a fourth vertical fixing plate, and the upper ends and the lower ends of the left sides of the two scissor mechanisms are hinged to connecting blocks at the left ends of the two lower optical shafts and the two upper optical shafts; a waterproof folding curtain is arranged between the first vertical fixing plate and the third vertical fixing plate;

the scrubbing mechanism comprises a vertical frame fixed on one side of the lifting plate, a plurality of linear slide rails arranged in parallel and fixed on the vertical frame, a plurality of scrubbing panels respectively connected to the linear slide rails in a sliding manner, and a second driving motor fixedly installed on one side of the vertical frame; the back end face of each rubbing panel drives the rubbing panel to slide on the linear slide rail through a driving rod, and the second driving motor is connected with the driving rod through a driving mechanism.

Furthermore, each scissors mechanism includes from last to the 1 or multiunit intersection structure that sets gradually down, each intersection structure includes the slender rod of two middle position departments handing-over each other, and is adjacent the upper and lower extreme position department of the slender rod of intersection structure is articulated.

Furthermore, the number of the linear slide rails is 3, the number of the driving rods is 3, and the number of the rubbing panels is 3.

The driving mechanism is arranged as a crankshaft driving mechanism, the crankshaft driving mechanism comprises four belt seat bearings which are fixed on the lifting plate and are arranged in parallel, every two L-shaped plates are arranged between the belt seat bearings, the belt seat bearings are connected with the adjacent L-shaped plates through first connecting shafts, every two belt seat bearings are connected through second connecting shafts between the L-shaped plates, the driving rod is connected onto the second connecting shaft through a bearing, the second driving motor drives the rightmost first connecting shaft of the crankshaft driving mechanism through a coupling, and the driving rod is fixedly connected with the bearing.

Furthermore, the rear end face of the scrubbing panel is connected with a panel base through a plurality of connecting pins and a spring sleeved on each connecting pin, a chute matched with the linear slide rail is fixedly arranged on the panel base, two mounting blocks are symmetrically fixed on the rear end face of the panel base and on two sides of the chute, and the two mounting blocks are hinged to the upper end of the driving rod.

Preferably, the rubbing panel is detachably connected with a rubbing cloth, and an inner-layer elastic body is arranged in the rubbing cloth.

Furthermore, a waterproof curtain is arranged on one side of the waterproof housing, which faces the bathing panel, and an opening for the driving rod to move up and down is formed in the waterproof curtain.

Furthermore, the outer ends of two rubbing panels at two sides of the plurality of rubbing panels are provided with a protective plate, and the included angle between the protective plate and the rubbing panels is 160 degrees.

Furthermore, a control panel is arranged on one of the armrests, the control panel is connected with a control box, a plurality of control keys for controlling the start and stop of the first driving motor and the second driving motor are arranged on the control panel, a motor control circuit for controlling the start and stop and the forward and reverse rotation of the first driving motor and the second driving motor, a single chip microcomputer connected with the motor control circuit and a power supply for supplying power to the whole automatic back rubbing chair are arranged in the control box; and the control keys are connected with the singlechip.

The technical scheme of the invention has the following beneficial effects:

(1) the chair back scrubbing device has a large scrubbing range, and can scrub the parts which are difficult to finish by one person, for example, the back of the chair is provided with a plurality of scrubbing panels, so that the back can be cleaned in all directions; the height of the lifting mechanism is adjusted, the lifting mechanism is suitable for people with different heights, the scrubbing mechanism is matched to scrub up and down, the scrubbing range is larger, the scrubbing area can be adjusted manually, the scrubbing device is more humanized and intelligent, and the scrubbing quality is improved. The invention has small occupied space, is easy to store, and has more substantial price than the intelligent scrubbing equipment on the market.

(2) According to the invention, through the arrangement of the waterproof housing, the waterproof folding curtain and the waterproof curtain, the electrical and mechanical parts can be strictly separated from the use area, so that potential safety hazards such as water leakage and electric shock are avoided, and the use is safer and more reliable.

(3) According to the invention, the control panel controls the first driving motor to rotate, the first driving motor drives the ball screw to rotate, the ball screw is provided with the matched screw nut, the screw nut is driven to move left and right when the ball screw rotates, the screw nut is fixed with the movable plate so as to drive the movable plate to move left and right on the optical axis, so that the scissor fork mechanism is driven to extend up and down, the up-and-down movement of the lifting plate is realized, and the height adjustment of the bath device is realized so as to adapt to people with different heights.

(4) According to the invention, the control panel is used for selecting the required scrubbing frequency, the key used for controlling the operation of the second driving motor on the control panel is pressed, the second driving motor drives the crankshaft driving mechanism to rotate, the L-shaped plate, the first connecting shaft and the second connecting shaft in the crankshaft driving mechanism are driven to rotate, and the second connecting shaft drives the driving rod to rotate, so that the driving rod drives the three scrubbing panels to scrub reversely and vertically, and the functions of large scrubbing range and convenience in scrubbing are realized.

Drawings

FIG. 1 is a schematic perspective view of the present invention;

FIG. 2 is a side view of the present invention;

FIG. 3 is a schematic structural diagram of the lifting mechanism of the present invention;

FIG. 4 is a schematic view of the connection structure of the waterproof curtain and the driving rod according to the present invention;

FIG. 5 is a schematic structural view of the scrubbing mechanism of the present invention;

FIG. 6 is a schematic view of a connection structure of the scrubbing panel and the driving rod according to the present invention;

fig. 7 is a schematic structural diagram of the driving mechanism of the present invention.

Description of reference numerals: 1. a bottom support mechanism; 11. supporting legs; 12. a bottom frame; 13. a handrail; 14. a control panel; 15. a seat plate; 16. an auxiliary leg; 2. a lifting mechanism; 21. a waterproof folding curtain; 211. a first drive motor; 212. a scissor mechanism; 213. a lifting plate; 214. a ball screw; 215. a feed screw nut; 216. an upper optical axis; 217. a movable plate; 218. mounting a plate; 219. a lower optical axis; 220. a first vertical fixing plate; 221. a guide post sleeve; 222. a column; 223. a guide post; 224. a set square; 3. a scrubbing mechanism; 311. a second drive motor; 312. a first connecting shaft; 313. an L-shaped plate; 314. a drive rod; 315. a linear slide rail; 316. scrubbing the panel; 317. a panel base; 318. a spring; 319. rubbing cloth; 320. a second connecting shaft; 321. a bearing; 322. a pedestal bearing; 4. a waterproof housing; 41. a waterproof curtain.

Detailed Description

In order to make the technical problems, technical solutions and advantages of the present invention more apparent, the following detailed description is given with reference to the accompanying drawings and specific embodiments.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", "front", "rear", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

As shown in fig. 1, an automatic back rubbing chair for bathroom comprises a bottom support mechanism 1, a lifting mechanism 2 arranged above the bottom support mechanism 1, a rubbing mechanism 3 arranged above the lifting mechanism 2, and a waterproof cover 4 arranged at the periphery of the rubbing mechanism 3. The waterproof housing 4 is assembled by acrylic plates, and in order to prevent large-area water from entering the mechanical and electrical parts, a waterproof curtain 41 is adopted to cover the driving rod 314 (the waterproof curtain can be a folding waterproof curtain or a common waterproof curtain). Because the whole structure adopts the aluminum alloy material and the waterproof motor, the use and the safety of the equipment are not influenced when a small amount of water enters.

As shown in fig. 1 and fig. 2, the bottom support mechanism 1 includes a bottom frame 12, four support legs 11 disposed around the bottom frame 12, two adjacent support legs 11 spaced apart by W1 (W1 = 270-; preferably, the whole base supporting mechanism is connected by adopting a welding or bolt connection structure, the front end side of the bottom frame 12 is fixedly provided with a seat plate 15 by adopting a welding or bolt connection mode, the seat plate 15 is fixed at the upper ends of the two auxiliary supporting legs 16, and two handrails 13 are respectively arranged at two sides of the seat plate 15. In a further embodiment, a control panel 14 is arranged on one of the armrests 13, the control panel 14 is connected with a control box, the control panel 14 is provided with a plurality of control keys for controlling the start and stop of the first driving motor 211 and the second driving motor 311, and the control box is internally provided with a motor control circuit for controlling the start and stop and the forward and reverse rotation of the first driving motor 211 and the second driving motor 311, a single chip connected with the motor control circuit, and a power supply for supplying power to the whole automatic back rubbing chair; and the control keys are connected with the singlechip. Preferably, the control box is arranged at the lower end of the lifting structure, and a power socket is arranged on the outer side of the control box and connected with external municipal 220V alternating current through a power line. The outside of whole control box adopts waterproof setting to guarantee the security performance of whole structure. Preferably, the control panel 14 of the present invention may further be provided with a frequency adjustment key for adjusting the scrub frequency and a call key for use in emergency, and the frequency adjustment key realizes that the scrub frequency is adjusted through the control panel 14; the call key implementation implements a call function through the control panel 14 upon encountering an emergency.

As shown in fig. 2 and fig. 3, the lifting range of the lifting mechanism 2 is H1=250-270mm, the lifting mechanism 2 is arranged at the rear end of the seat plate 15, the lifting mechanism 2 comprises an installation plate 218 fixed on the bottom frame 12, a first vertical fixing plate 220, two scissor mechanisms 212 arranged above the installation plate 218 and arranged in parallel, a lifting plate 213 arranged above the two scissor mechanisms 212, a first driving motor 211 fixed on the installation plate 218 through a welding mode or a bolt connection method, two guide posts 223 fixed on the installation plate 218 through a welding mode or a bolt connection method, and a stand column 222 fixed on the bottom frame 12 through a welding mode or a bolt connection method, the lower ends of the two guide posts 223 are fixed on the installation plate 218, the two guide posts 223 are slidably connected to the lifting plate 213, and the upper ends of the two guide posts 223 and the upper end of the stand column 222 are fixed through a triangular plate 224; preferably, the triangle 224 is welded and fixed to the upper ends of the columns 223 and 222, and the waterproof case 4 is in contact with the upper ends of the columns 222 and 223. Two second vertical fixing plates are further disposed at the upper end of the mounting plate 218, and preferably, the two second vertical fixing plates are disposed at two sides of the first driving motor 211; two lower optical shafts 219 are respectively arranged on the front side and the rear side between the first vertical fixing plate 220 and the two second vertical fixing plates, a third vertical fixing plate and a fourth vertical fixing plate are arranged on the left side and the right side of the lower end of the lifting plate 213, two upper optical shafts 216 are respectively fixed on the front side and the rear side of the third vertical fixing plate and the fourth vertical fixing plate, the left side ends of the two lower optical shafts 219 and the left side ends of the two upper optical shafts 219 are both connected with connecting blocks in a sliding manner, an output shaft of the first driving motor 211 is connected with a ball screw 214 through a coupler, the other end of the ball screw 214 is rotatably connected to the first vertical fixing plate 220, a screw nut 215 is connected to the ball screw 214 in a meshing manner, a movable plate 217 is fixedly connected to the screw nut 215, and two ends of the movable plate 217 are fixedly connected; the upper and lower ends of the right sides of the two scissor mechanisms 212 are hinged to the two second vertical fixing plates and the fourth vertical fixing plate, and the upper and lower ends of the left sides of the two scissor mechanisms 212 are hinged to the connecting blocks of the left ends of the two lower optical axes 219 and the two upper optical axes 216; a waterproof folding curtain 21 is arranged between the first vertical fixing plate 220 and the third vertical fixing plate; the right side ends of the mounting plate 218 and the lifting plate 213 are provided with a support plate for mounting the scissors mechanism 212, and the support plate is fixedly connected with a bolt of the second vertical fixing plate or the fourth vertical fixing plate to ensure the stability of the structure. In a further embodiment, each of the scissors mechanisms 212 includes 1 or more sets of crossing structures arranged from top to bottom, each of the crossing structures includes two elongated rods connected to each other at an intermediate position, and the elongated rods of the crossing structures are hinged at upper and lower positions. The first driving motor 211 at the right end of the lifting mechanism 2 in the invention is a power source for driving the lifting mechanism 2. The first driving motor 211 is connected with a ball screw 214 through a coupling, and a matched screw nut 215 is installed on the ball screw 214. When the ball screw 214 rotates, the screw nut 215 is driven to move left and right, the screw nut 215 is fixed with the movable plate 217, the movable plate 217 is driven to move left and right on the two optical axes 216, and therefore the scissors mechanism 212 is driven to move up and down, and the lifting plate 213 moves up and down. The scissor mechanism 212 is hinged through an elongated rod; preferably, in order to achieve stable lifting, the lifting plate 213 is embedded with a guide post sleeve 221. The guide column sleeve 221 can freely move up and down on the guide column 223, the bottom of the guide column 223 is fixed on the bottom frame 12, and the tops of the two guide columns 223 and the upright column 222 are fixed by a triangle 224, so that the structure is stable.

As shown in fig. 5, the bathing mechanism 3 is disposed on the lifting mechanism 2, the up-down movement range is 260-280mm, the bathing mechanism 3 comprises a vertical frame fixed on one side of the lifting plate 218 by welding or bolt connection, a plurality of linear sliding rails 315 arranged in parallel and fixed on the vertical frame by welding or bolt connection, a plurality of bathing panels 316 respectively slidably connected to the linear sliding rails 315, and a second driving motor 311 fixedly mounted on one side of the vertical frame; the back end face of each rubbing panel 316 drives the rubbing panel 316 to slide on the linear slide rail 315 through a driving rod 314, and the second driving motor 311 is connected with the driving rod through a driving mechanism 314. In a further embodiment, the number of the linear sliding rails 315 is 3, the number of the driving rods 314 is 3, and the number of the bathing panels 314 is 3.

As shown in fig. 7, the driving mechanism is a crankshaft driving mechanism, the crankshaft driving mechanism includes four bearings 322 with seats, each two bearings 322 with seats are symmetrically arranged between the bearings 322 with seats, the bearings 322 with seats are connected to the adjacent L-shaped plates 313 through a first connecting shaft 312, two bearings 322 with seats are connected to each other through a second connecting shaft 320, the driving rod 314 is connected to the second connecting shaft 320 through a bearing 321, the second driving motor 311 is driven by the first connecting shaft 312 at the rightmost side of the crankshaft driving mechanism through a coupling, and the driving rod 314 and the bearings 320 are fixedly connected through bolts. The driving mechanism adopted by the invention is connected with the second driving motor 311 through the coupler, and the driving mechanism is used for rubbing down, so that the high transmission precision is not needed, the aluminum alloy shaft is used for transmission, the transmission part is not corroded by water, the service life is long, the transmission is stable, the cost is low, and the replacement is easy. According to the invention, the second driving motor 311 drives the crankshaft driving mechanism to rotate, the crankshaft driving mechanism pushes the three rubbing panels 316 to rub up and down reversely through the driving rod 314, so that the use is more comfortable, the stress directions of the back are consistent, and the phenomenon of clamping meat cannot occur.

In a further embodiment, as shown in fig. 6, the back end of the bathing panel 316 is connected to a panel base 317 through a plurality of connecting pins and a spring 318 sleeved on each connecting pin, and under the action of a force, the spring 318 contracts and the connecting pins move backwards. The fixed spout that is provided with linear slide rail looks adaptation on the panel base 317, the rear end face of panel base 317 and be fixed with two installation pieces, two at spout bilateral symmetry the installation piece is articulated with the upper end department of actuating lever 314, has cup jointed spring 318 on through the connecting pin, realizes that when user's back leans on when rubbing with the damp towel on, spring 318 plays the reaction and pushes away the effect, can rub with the damp towel intensity through the dynamics self-regulation of leaning on.

Preferably, the bathing panel 316 is detachably connected with a bathing cloth 319, and an inner-layer elastomer is arranged in the bathing cloth 319. Preferably, the elastomer is a sponge for enhanced comfort.

In a further embodiment, as shown in fig. 4, the waterproof casing 4 is provided with a waterproof curtain 41 on a side facing the bathing panel 316, the waterproof curtain 41 is provided with an opening for the driving rod 314 to move up and down, and the waterproof curtain 41 is provided at a front end side of the waterproof casing 4 for facilitating the movement of the driving rod 314. Preferably, the opening is filled with a waterproof and stretchable material, so that the action of the driving rod 314 is not affected, and the waterproof performance is not affected.

In a further embodiment, a guard plate is arranged at the outer side end of two of the plurality of rubbing panels 316, the included angle between the guard plate and the rubbing panel is 160 °, so that the guard plate can be positioned better, and the two guard plates play roles in protecting and limiting the human body, thereby improving the overall comfort level.

The working process of the specific embodiment of the invention is as follows: the invention supplies power for the whole bath chair through the power supply, and when the bath chair is used, firstly, the height is adjusted: the first driving motor 211 is controlled by the control panel 14 to rotate, the first driving motor 211 drives the ball screw 214 to rotate, and the ball screw is provided with a matched screw nut 215. When the ball screw rotates, the screw nut 215 is driven to move left and right, the screw nut 215 is fixed with the movable plate 217, so that the movable plate 217 is driven to move left and right on the optical axis, the scissor mechanism 212 is driven to stretch up and down, the lifting plate 213 is driven to move up and down, and the height of the rubbing device 3 is adjusted to adapt to people with different heights. Secondly, selecting a required scrubbing frequency through the control panel 14, pressing a key on the control panel 14 for controlling the operation of a second driving motor, wherein the second driving motor 311 drives a crankshaft driving mechanism to rotate, so as to drive an L-shaped plate, a first connecting shaft and a second connecting shaft in the crankshaft driving mechanism to rotate, and the second connecting shaft drives a driving rod to rotate, so that the driving rod 314 drives the three scrubbing panels 316 to scrub up and down in a reverse direction; at the end, the stop is controlled by the control panel 14.

While the foregoing is directed to the preferred embodiment of the present invention, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention as defined in the appended claims.