CN218075490U - Old man is supplementary electric dolly at home - Google Patents

Abstract

The utility model discloses an auxiliary electric trolley for home use of the old, which comprises a seat, a support frame, a translation device, an angle adjusting device, a lifting device and a driving device; the seat comprises a backrest bottom plate, a cushion bottom plate and a leg rest bottom plate, wherein one end of the cushion bottom plate is rotatably connected with the upper end of the leg rest bottom plate, the other end of the cushion bottom plate is rotatably connected with the lower end of the backrest bottom plate, the bottom surfaces of the backrest bottom plate and the leg rest bottom plate are respectively and adjustably connected with an angle adjusting device, and the inclination angles of the backrest bottom plate and the leg rest bottom plate are adjusted by the angle adjusting device; the translation device is arranged on the support frame, the cushion bottom plate is arranged on the translation device, and the translation device drives the seat to move back and forth along the two opposite sides of the backrest bottom plate; the lifting device is arranged at the bottom of the support frame and drives the support frame to lift; the lower end of the lifting device is fixedly connected with the driving device, and the driving device drives the electric trolley to stably advance. The utility model discloses a inconvenient user of health provides supplementary at home to help it to realize independent life at home.

Description

Old man is supplementary electric dolly at home

Technical Field

The utility model relates to a wheelchair car technical field especially relates to an old man is supplementary electric dolly at home.

Background

At present, electric wheelchair vehicles on the market are various, but the backrest and the leg rest structures of the electric wheelchair vehicles are relatively fixed and installed structures, so that the angle of the backrest and the leg rest cannot be adjusted when old people sit on the wheelchair, the sitting posture of the old people who need to drive the wheelchair can be maintained for a long time, and other postures cannot be changed. The bedplate of the existing electric wheelchair on the market is fixed, the lifting and translation functions can not be realized, the old people with different heights can not be satisfied, and the use experience is poor. And the user needs to be helped by people when getting on or off the wheelchair every time, the dependence is strong, and the wheelchair is very inconvenient for the old who lives alone.

Disclosure of Invention

An object of the utility model is to provide an old man is supplementary electric dolly at home.

The utility model adopts the technical proposal that:

an auxiliary electric trolley for the home of the old comprises a seat, a support frame, a translation device, an angle adjusting device, a lifting device and a driving device; the seat comprises a backrest bottom plate, a cushion bottom plate and a leg rest bottom plate, wherein one end of the cushion bottom plate is rotationally connected with the upper end of the leg rest bottom plate, the other end of the cushion bottom plate is rotationally connected with the lower end of the backrest bottom plate, the bottom surfaces of the backrest bottom plate and the leg rest bottom plate are respectively connected with an angle adjusting device in an adjustable manner, and the inclination angles of the backrest bottom plate and the leg rest bottom plate are adjusted by the angle adjusting device; the translation device is arranged on the support frame, the cushion bottom plate is arranged on the translation device, and the translation device drives the seat to move back and forth along the two opposite sides of the backrest bottom plate; the lifting device is arranged at the bottom of the support frame and drives the support frame to lift; the lower end of the lifting device is fixedly connected with the driving device, and the driving device drives the electric trolley to stably advance.

Furthermore, armrests are arranged on the seat cushion bottom plate corresponding to the two opposite sides of the backrest bottom plate.

Furthermore, the cushions of the backrest, the cushion and the backrest feet are respectively arranged on the corresponding backrest bottom plate, the cushion bottom plate and the backrest feet bottom plate.

Further, the support frame is a cuboid frame, the bottom of the cuboid frame is the upper surface that the level set up at seat central authorities bottom plate, and the cushion bottom plate is installed at the top of this cuboid frame.

Furthermore, the leg rest base plate and the backrest base plate are respectively in rotary connection with the cushion base plate on the corresponding end sides through hinges.

Furthermore, the translation device comprises a translation driving motor, translation lead screws and translation sliding blocks sleeved on the lead screws, at least two translation lead screws are fixed at the upper end of the support frame at intervals, the cushion bottom plate is horizontally arranged, the bottom of the cushion bottom plate is fixedly connected with the translation sliding blocks, and the translation lead screws are driven to move by the translation driving motor.

Furthermore, the upper end of the supporting frame is provided with a translation sliding rail, the bottom surface of the cushion bottom plate is provided with a corresponding sliding groove, and the cushion bottom plate is arranged on the translation sliding rail in a sliding mode.

Furthermore, the lower end of the support frame is fixed on the upper surface of a central bottom plate of the seat, and the bottom of the central bottom plate of the seat is provided with a lifting device which is arranged on the driving device.

Furthermore, the lifting device comprises four electric push rods, fixed ends of the four electric push rods are arranged at four corners of the bottom supporting bottom plate, movable ends of the electric push rods are arranged at the bottom of the central bottom plate of the seat, and the bottom supporting bottom plate is fixed on the driving device and is driven by the driving device to drive the electric trolley to stably advance.

Furthermore, the angle adjusting device comprises a leg rest connecting rod, a backrest connecting rod and at least 4 angle adjusting screw rods horizontally arranged on the upper surface of the central bottom plate of the seat at intervals, the angle adjusting screw rods are respectively connected with angle adjusting motors and driven by the angle adjusting motors to act, and the angle adjusting screw rods are respectively sleeved with a moving slide block;

the angle adjusting screw rods are used for adjusting the angle of the backrest, the movable sliding blocks on the angle adjusting screw rods for adjusting the angle of the backrest are respectively connected with one end of a backrest connecting rod, and the other end of the backrest connecting rod is sleeved on a backrest sliding rod horizontally arranged on the bottom surface of the backrest bottom plate in a sliding manner;

the at least two angle adjusting screw rods are used for adjusting the angle of the leaning leg; a remove slider on the angle accommodate lead screw for adjusting the back foot angle is connected with the one end of a back foot connecting rod respectively, and the other end slip cap of back foot connecting rod is established on the back foot slide bar that the back foot bottom plate bottom surface level set up.

Furthermore, the translation screw rod and the angle adjusting screw rod are arranged in a mutually perpendicular mode.

Furthermore, the driving device comprises an aluminum frame, and a power supply, a driving motor and a steering motor which are arranged on the aluminum frame; the two sides of the aluminum frame are respectively provided with wheels, and the two wheels positioned at the rear end of the trolley in the advancing direction are connected with a driving motor and driven by the driving motor to rotate; two wheels positioned at the front end of the trolley in the advancing direction are steering supporting wheels which are sleeved on a front wheel half shaft of the aluminum frame in a hollow way; the steering motors are arranged in bilateral symmetry and control the half shafts of the two wheels at the front ends to swing in the same direction.

Furthermore, the device also comprises a control mainboard and a remote controller which is in wireless communication with the control mainboard, the remote controller transmits an instruction to the control mainboard, the control mainboard is provided with a main control chip and a peripheral circuit thereof, and the control mainboard is electrically connected with and controls the translation device, the angle adjusting device, the lifting device and the driving device. As an implementation, the main control chip is a single chip.

Specifically, the control mainboard controls a translation driving motor of the translation device, an electric push rod of the lifting device, a driving motor of the driving device and a steering motor through the main control chip.

Furthermore, baffles are arranged around the outer sides of the support frame, the translation device, the angle adjusting device and the lifting device.

The utility model adopts the above technical scheme, but the old man of the whole elevating gear of automatically regulated back, the angle adjusting device who leans on the foot, cushion and translation device is at home with supplementary electric dolly. The basic principle of the angle adjusting device and the translation device is that a single chip microcomputer sends signals to a corresponding motor and a controller thereof, the motor drives a lead screw to rotate, the lead screw rotates to drive a moving block on the lead screw to translate, the angle adjustment of the backrest and the backrest is adjusted through a connecting rod, and the translation device at the bottom of the cushion realizes the integral left-right translation of the cushion according to the principle. Be provided with lithium cell and drive circuit under the supplementary electric trolley, convey the instruction through the remote controller for the dolly removes according to the demand.

Drawings

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments;

FIG. 1 is a general schematic view of an auxiliary electric cart;

FIG. 2 is a schematic view of the entire auxiliary electric cart with the outer shell and the soft pad removed;

FIG. 3 is a partial schematic view of the backrest and the backrest leg angle adjusting device;

FIG. 4 is a partial schematic view of the seat cushion global translation device;

FIG. 5 is a partial view of the overall lifting device of the seat cushion;

fig. 6 is a partial schematic view of an auxiliary electric trolley driving device.

The labels in the figure are: 1. the seat comprises a backrest bottom plate, 2, a cushion bottom plate, 3, a leg rest bottom plate, 4, an armrest, 5, an angle adjusting device, 20, a support frame, 30, a translation device, 501, an angle adjusting motor, 502, a backrest plate connecting rod, 503, a leg rest plate connecting rod, 504, a movable sliding block, 505, an angle adjusting screw rod, 506, a backrest sliding rod, 507, a slidable hinge, 508, a translation driving motor, 509, a translation sliding block, 510, a translation screw rod, 511, a leg rest sliding rod, 6, a lifting device, 601, a bottom support bottom plate, 602, an electric push rod, 603, a seat central bottom plate, 7, a driving device, 701, an aluminum frame, 702, a driving motor, 703, wheels, 704, a lithium battery, 705 and a steering motor.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application.

As shown in one of fig. 1 to 6, the utility model discloses an auxiliary electric trolley for home use of the old, which comprises a seat, a support frame 20, a translation device 30, an angle adjusting device 5, a lifting device 6 and a driving device 7; the seat comprises a backrest bottom plate 1, a cushion bottom plate 2 and a leg rest bottom plate 3, one end of the cushion bottom plate 2 is rotatably connected with the upper end of the leg rest bottom plate 3, the other end of the cushion bottom plate 2 is rotatably connected with the lower end of the backrest bottom plate 1, the bottom surfaces of the backrest bottom plate 1 and the leg rest bottom plate 3 are respectively and adjustably connected with an angle adjusting device, and the inclination angles of the backrest bottom plate 1 and the leg rest bottom plate 3 are adjusted by the angle adjusting device; the translation device is arranged on the support frame 20, the cushion bottom plate 2 is arranged on the translation device, and the translation device drives the seat to move back and forth along two opposite sides of the backrest bottom plate 1; the lifting device 6 is arranged at the bottom of the support frame 20 and drives the support frame 20 to lift; the lower end of the lifting device 6 is fixedly connected with the driving device 7, and the driving device 7 drives the electric trolley to stably advance.

Further, armrests 4 are arranged on the cushion bottom plate 2 corresponding to two opposite sides of the backrest bottom plate 1.

Further, the cushions of the backrest 101, the seat cushion 201 and the footrest 301 are respectively mounted on the corresponding backrest bottom plate 1, the seat cushion bottom plate 2 and the footrest bottom plate 3.

Further, the support frame 20 is a rectangular parallelepiped frame, the bottom of the rectangular parallelepiped frame is horizontally disposed on the upper surface of the seat central bottom plate 603, and the cushion bottom plate 2 is installed on the top of the rectangular parallelepiped frame.

Specifically, the cuboid frame is built by aluminum profiles.

Further, the footrest plates 3 and the backrest plates 1 are rotatably connected to the cushion plates 2 on the respective end sides by hinges.

Further, the translation device comprises a translation driving motor 508, translation lead screws 510 and translation sliders 509 sleeved on the lead screws, at least two translation lead screws 510 are fixed at the upper end of the support frame 20 at intervals, the seat cushion bottom plate 2 is horizontally arranged, the bottom of the seat cushion bottom plate 2 is fixedly connected with the translation sliders 509, and the translation lead screws 510 are driven by the translation driving motor 508 to act;

furthermore, the upper end of the supporting frame 20 has a translation slide rail (not shown in the figure), and the bottom surface of the cushion bottom plate is provided with a corresponding sliding groove, and the cushion bottom plate is slidably disposed on the translation slide rail.

Further, the lower end of the support frame 20 is fixed to the upper surface of a seat center bottom plate 603, and the lifting device 6 is provided at the bottom of the seat center bottom plate 603 and mounted on the driving device 7.

Furthermore, the lifting device comprises four electric push rods 602, the fixed ends of the four electric push rods 602 are installed at four corners of the bottom support bottom plate 601, the movable end of the electric push rod 602 is installed at the bottom of the seat central bottom plate 603, and the bottom support bottom plate 601 is fixed on the driving device 7 and is driven by the driving device 7 to stably advance.

Further, the angle adjusting device comprises a leg rest connecting rod 503, a backrest connecting rod 502 and at least 4 angle adjusting screws 505 horizontally arranged on the upper surface of the central bottom plate of the seat at intervals, the angle adjusting screws 505 are respectively connected with an angle adjusting motor 501 and driven by the angle adjusting motor 501 to act, and the angle adjusting screws 505 are respectively sleeved with a moving slider 504;

the at least two angle adjusting screw rods 505 are used for adjusting the angle of the backrest, a movable slider on the angle adjusting screw rods 505 for adjusting the angle of the backrest is respectively connected with one end of a backrest connecting rod 502, and the other end of the backrest connecting rod 502 is sleeved on a backrest sliding rod 506 horizontally arranged on the bottom surface of the backrest bottom plate in a sliding manner;

the at least two angle adjusting screw rods 505 are used for adjusting the angle of the leaning leg; the movable sliding block on the angle adjusting screw 505 for adjusting the angle of the backrest leg is respectively connected with one end of a backrest leg connecting rod 503, and the other end of the backrest leg connecting rod 503 is slidably sleeved on a backrest leg sliding rod 511 horizontally arranged on the bottom surface of the backrest leg bottom plate.

Further, the translation screw 510 and the angle adjusting screw 505 are arranged perpendicular to each other.

Further, the driving device comprises an aluminum frame 701, and a lithium battery 704, a driving motor 702 and a steering motor 705 which are arranged on the aluminum frame 701; two sides of the aluminum frame 701 are respectively provided with wheels 703, and the two wheels 703 positioned at the rear end of the trolley in the advancing direction are connected with a driving motor through a speed reducer and driven by the driving motor 702 to rotate; two wheels 703 positioned at the front end of the trolley in the advancing direction are steering supporting wheels which are sleeved on a front wheel half shaft of the aluminum frame 701 in an empty manner; the steering motor 705 is arranged in left-right symmetry and controls the semi-axes of the two wheels at the front end to swing in the same direction.

Furthermore, the device also comprises a control mainboard and a remote controller which is in wireless communication with the control mainboard, the remote controller transmits an instruction to the control mainboard, the control mainboard is provided with a main control chip and a peripheral circuit thereof, and the control mainboard is electrically connected with and controls the translation device, the angle adjusting device, the lifting device and the driving device. As an implementation, the main control chip is a single chip.

Specifically, the control main board controls the translation driving motor 508 of the translation device, the electric push rod 602 of the lifting device, the driving motor 702 of the driving device, and the steering motor 705 through the main control chip.

Furthermore, as shown in fig. 1 or fig. 2, baffles (not labeled in the figures) are arranged around the outer sides of the supporting frame, the translation device, the angle adjusting device and the lifting device.

The following is a detailed description of the working principle of the present invention:

specifically, the utility model discloses constitute by angle adjusting device and translation device, elevating gear and drive arrangement. The angle adjusting function of the backrest or the backrest foot is mainly completed by a motor, a screw rod, a movable sliding block and a backrest foot connecting rod; the whole cushion translates left and right along with the screw rod sliding block, and the translation parts can not interfere with the ball screw rod and the connecting rod mechanism of the previous angle adjusting device, so that stable and smooth movement is realized. The lifting of the cushion is realized by the up-and-down movement of the electric push rod 602; the drive arrangement of bottom adopts chargeable lithium cell power supply, can hold 3 to four lithium cells, makes electric trolley's duration improve greatly, and the drive arrangement skeleton is the aluminium frame, bears great weight when can reducing electric trolley total weight, makes the dolly can even running.

In the figures 1 and 2, the cushions of the backrest, the cushion and the arm rest are all arranged on the corresponding backrest bottom plate 1, the cushion bottom plate 2 and the arm rest bottom plate 3, the bottom plates are controlled by the corresponding angle adjusting device and the translation device 5 and the lifting device 6 to translate at proper time, and the bottom driving device 7 is used for remotely controlling the trolley to run.

As shown in fig. 3, when a user needs to adjust the angle of the backrest or the backrest foot, the auxiliary car controller receives a signal and transmits a feedback signal to the motors 501, so that the screw rod 505 driven by a set of two motors 501 on the left and right outer sides rotates forward and backward, the forward and backward rotation of the screw rod 505 is converted into forward and backward translation of the screw rod moving slider 504, when the moving slider 504 translates forward and backward, the set of two foot rest connecting rods 503 connected with the moving slider 504 enables the foot rest 3 to rotate around the hinge connected with the cushion bottom plate 2, the angle is determined by the number of rotation turns of the motors 501, and the user can perform stepless adjustment through a remote controller; similarly, the two motors 501 in the middle set rotate forward and backward to control the angle of the back board 1, and the forward and backward rotation of the middle set of motors 501 is converted into the forward and backward translation of the lead screw moving block 504, so that the back board connecting rod 502 is utilized to drive the back board 1 to rotate around the hinge connected with the cushion bottom plate 2, and the function of adjusting the angle of the back board 1 is achieved.

Fig. 4 shows the electric trolley cushion integral translation device, when the driving motor 508 rotates in the forward and reverse directions, the screw rod 505 is driven to rotate in the forward and reverse directions, the forward and reverse rotation of the screw rod 505 is converted into the left and right translation movement of the translation slider 509, and the screw rod slider 509 is fixedly connected with the cushion bottom plate 2, so that the cushion integral translates in the left and right directions along with the screw rod translation slider 509, and meanwhile, the slidable hinges 507 of the four angle adjusting connecting rods of the backrest and the backrest foot can always keep a left and right relative sliding state with the sliding rods at the rear part of the backrest and the backrest foot during translation, so that when the whole cushion is controlled in the left and right translation, the translation parts cannot interfere with the ball screw rod and the connecting rod mechanism of the previous angle adjusting device, and stable and smooth movement is realized.

Fig. 5 shows the whole lifting device of the electric car seat cushion, the device is formed by connecting a bottom supporting base plate 601 and a seat central base plate 603 by four electric push rods 602, the fixed ends of the electric push rods 602 are installed on the bottom supporting base plate 601, the movable ends thereof are installed at the bottom of the seat central base plate 603, when a single chip transmits a signal to a controller, the controller controls the four electric push rods to synchronously lift or descend, so as to realize the whole lifting or descending of the electric car seat cushion.

As shown in fig. 6, a set of driving device is installed at the bottom of the auxiliary electric trolley, and is powered by a rechargeable lithium battery, and when the trolley receives an operation instruction from a user, a control signal is sent to enable the corresponding driving motor 702 to rotate forward and backward, so as to drive the two wheels 703 at the rear part to rotate, and further enable the auxiliary electric trolley to move forward and backward; at this time, the controller also controls the steering motors 705 symmetrically arranged left and right to simultaneously control the half shafts of the front two wheels 703 to swing in the same direction according to the steering requirement of a user (the front two wheels 703 are steering support wheels and are freely sleeved on the half shafts of the front wheels), so that the direction control is realized. The driving device aluminum frame 701 is a framework, is a mounting base body of parts such as a driving motor 702, wheels 703, a lithium battery 704, a steering motor 705 and the like of the driving device, and bears the total weight of the auxiliary electric trolley, so that the trolley can run stably.

The utility model has the characteristics of it is following: 1. the bottom of the auxiliary electric trolley is provided with a storage battery and a driving circuit, and an operator can transmit an instruction through a remote controller so that the auxiliary electric trolley can move according to the requirements of the user; 2. the auxiliary electric trolley is provided with the lifting mechanism, so that the auxiliary electric trolley can adapt to different bed heights, and the application range of the auxiliary electric trolley is widened; 3. the translation device at the bottom of the cushion can realize the integral left-right translation of the cushion, so that the old can conveniently move to the auxiliary electric trolley when getting on or off the bed; 4. the angle adjustment of the backrest and the leaning legs of the seat of the auxiliary electric trolley can enable the whole cushion of the trolley to be adjusted to be in a 180-degree lying state, so that a user can conveniently have a rest in a short time when tired; 5. the armrests on the two sides of the seat can rotate by 90 degrees, so that a user can conveniently support the seat when riding instead of walking, and the safety factor of the user is increased; 6. when the user wants to move to the bed for rest, the handrail can be laid flat, and the user can conveniently move from the auxiliary electric trolley to the bed.

The utility model adopts the above technical scheme, but the old man of the whole elevating gear of automatically regulated back, the angle adjusting device who leans on the foot, cushion and translation device is at home with supplementary electric dolly. The basic principle of the angle adjusting device and the translation device is that a single chip microcomputer sends signals to a corresponding motor and a controller thereof, the motor drives a lead screw to rotate, the lead screw rotates to drive a moving block on the lead screw to translate, then the connecting rod is used for adjusting the angles of the backrest and the backrest, and the translation device at the bottom of the cushion realizes the integral left-right translation of the cushion according to the principle. Be provided with lithium cell and drive circuit under the supplementary electric trolley, convey the instruction through the remote controller for the dolly removes according to the demand.

It is to be understood that the embodiments described are only a few embodiments of the present application and not all embodiments. The embodiments and features of the embodiments in the present application may be combined with each other without conflict. The components of the embodiments of the present application, generally described and illustrated in the figures herein, can be arranged and designed in a wide variety of different configurations. Thus, the detailed description of the embodiments of the present application is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

Claims (10)

1. The utility model provides an old man is supplementary electric dolly at home which characterized in that: the device comprises a seat, a support frame, a translation device, an angle adjusting device, a lifting device and a driving device; the seat comprises a backrest bottom plate, a cushion bottom plate and a leg rest bottom plate, wherein one end of the cushion bottom plate is rotationally connected with the upper end of the leg rest bottom plate, the other end of the cushion bottom plate is rotationally connected with the lower end of the backrest bottom plate, the bottom surfaces of the backrest bottom plate and the leg rest bottom plate are respectively connected with an angle adjusting device in an adjustable manner, and the inclination angles of the backrest bottom plate and the leg rest bottom plate are adjusted by the angle adjusting device; the translation device is arranged on the support frame, the cushion bottom plate is arranged on the translation device, and the translation device drives the seat to move back and forth along two opposite sides of the backrest bottom plate; the lifting device is arranged at the bottom of the support frame and drives the support frame to lift; the lower end of the lifting device is fixedly connected with the driving device, and the driving device drives the electric trolley to stably advance.

2. The home-use auxiliary electric trolley for the aged according to claim 1, characterized in that: armrests are arranged on the seat cushion bottom plate corresponding to the two opposite sides of the backrest bottom plate.

3. The home-use auxiliary electric trolley for the aged according to claim 1, characterized in that: the foot rest bottom plate and the backrest bottom plate are respectively connected with the cushion bottom plate at the corresponding end side in a rotating way through hinges.

4. The home-use auxiliary electric trolley for the aged according to claim 1, characterized in that: the cushions of the backrest, the cushion and the backrest feet are respectively arranged on the corresponding backrest bottom plate, the cushion bottom plate and the backrest feet bottom plate.

5. The home-use auxiliary electric trolley for the aged according to claim 1, characterized in that: the translation device comprises a translation driving motor, translation lead screws and translation sliding blocks sleeved on the lead screws, at least two translation lead screws are fixed at the upper end of the support frame at intervals, the cushion bottom plate is horizontally placed, the bottom of the cushion bottom plate is fixedly connected with the translation sliding blocks, and the translation lead screws are driven to move by the translation driving motor.

6. The home-use auxiliary electric trolley for the aged according to claim 1, characterized in that: the lower end of the supporting frame is fixed on the upper surface of a central bottom plate of a seat, and the bottom of the central bottom plate of the seat is provided with a lifting device which is arranged on a driving device; the lifting device comprises four electric push rods, fixed ends of the four electric push rods are arranged at four corners of the bottom supporting bottom plate, movable ends of the electric push rods are arranged at the bottom of the central bottom plate of the seat, and the bottom supporting bottom plate is fixed on the driving device and is driven by the driving device to drive the electric trolley to stably advance.

7. The household auxiliary electric trolley for the aged according to claim 6, characterized in that: the angle adjusting device comprises a leg rest connecting rod, a backrest connecting rod and at least 4 angle adjusting screw rods horizontally arranged on the upper surface of the central base plate of the seat at intervals, the angle adjusting screw rods are respectively connected with an angle adjusting motor and driven by the angle adjusting motor to act, and the angle adjusting screw rods are respectively sleeved with a moving slide block;

the angle adjusting screw rods are used for adjusting the angle of the backrest, the movable sliding blocks on the angle adjusting screw rods for adjusting the angle of the backrest are respectively connected with one end of a backrest connecting rod, and the other end of the backrest connecting rod is sleeved on a backrest sliding rod horizontally arranged on the bottom surface of the backrest bottom plate in a sliding manner;

the at least two angle adjusting screw rods are used for adjusting the angle of the leaning leg; a remove slider on the angle accommodate lead screw for adjusting the back foot angle is connected with the one end of a back foot connecting rod respectively, and the other end slip cap of back foot connecting rod is established on the back foot slide bar that the back foot bottom plate bottom surface level set up.

8. The home-use auxiliary electric trolley for the aged according to claim 1, characterized in that: the support frame is a cuboid frame, and the bottom of this cuboid frame is the upper surface that the level set up at seat central authorities bottom plate, and the cushion bottom plate is installed at the top of this cuboid frame.

9. The household auxiliary electric trolley for the aged according to claim 1, characterized in that: the driving device comprises an aluminum frame, and a power supply, a driving motor and a steering motor which are arranged on the aluminum frame; two sides of the aluminum frame are respectively provided with wheels, and the two wheels positioned at the rear end in the travelling direction of the trolley are connected with a driving motor and driven by the driving motor to rotate; two wheels positioned at the front end of the trolley in the advancing direction are steering supporting wheels, and the steering supporting wheels are sleeved on a front wheel half shaft of the aluminum frame in an empty mode; the steering motors are arranged in bilateral symmetry and control the half shafts of the two wheels at the front end to swing in the same direction.

10. The home-use auxiliary electric trolley for the aged according to claim 1, characterized in that: the remote control device comprises a control mainboard and a remote controller in wireless communication with the control mainboard, the remote controller transmits an instruction to the control mainboard, the control mainboard is provided with a main control chip and a peripheral circuit thereof, and the control mainboard is electrically connected with and controls the translation device, the angle adjusting device, the lifting device and the driving device.

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