CN220530250U - Self-help intelligent wheelchair for paralytic patient of lower limb - Google Patents

Abstract

The utility model relates to the technical field of intelligent wheelchairs, in particular to a self-help intelligent wheelchair for lower limb paralysis patients, which solves the problem that lower limb paralysis patients cannot sit on the existing wheelchair independently. A self-help intelligent wheelchair for patients with lower limb paralysis comprises a wheelchair frame and two driving wheels; the wheelchair frame comprises a seat plate, a backup plate, two support square rods and two telescopic square rods; the seat comprises a fixed seat and a movable seat, the rear edge of the movable seat exceeds the rear edge of the upper seat, the fixed seat comprises a left fixed seat and a right fixed seat, and the movable seat comprises a left movable seat and a right movable seat; the backup plate comprises a left backup plate and a right backup plate; side rods are fixedly arranged at the edges of the two sides of the backup plate; the two support square rods are arranged in front of the seat plate; the two telescopic square rods are correspondingly arranged at the bottoms of the two supporting square rods along the longitudinal direction; the two driving wheels are correspondingly arranged at the bottoms of the two square support rods. The utility model can meet the requirement that the paralyzed patient sits on the intelligent wheelchair by oneself.

Description

Self-help intelligent wheelchair for paralytic patient of lower limb

Technical Field

The utility model relates to the technical field of intelligent wheelchairs, in particular to a self-help intelligent wheelchair for lower limb paralysis patients.

Background

The intelligent wheelchair for the paralyzed lower limb patients on the market has a plurality of functions newly added on the basis of the common wheelchair, thereby providing convenience for the life of the paralyzed lower limb patients. However, the existing intelligent wheelchair can realize various functions based on that the lower limb paralysis patient can sit on the intelligent wheelchair with the assistance of other people, and when the lower limb paralysis patient is temporarily unattended, the lower limb paralysis patient cannot sit on the intelligent wheelchair to meet the requirement of self-action.

Therefore, the self-help intelligent wheelchair for the paralyzed lower limb patient is necessary to be invented, so that the problem that the paralyzed lower limb patient cannot sit on the existing intelligent wheelchair independently is solved.

Disclosure of Invention

The utility model provides a self-help intelligent wheelchair for paralyzed lower limbs, which aims to solve the problem that paralyzed lower limbs cannot sit on the existing wheelchair independently.

The utility model is realized by adopting the following technical scheme:

a self-help intelligent wheelchair for patients with lower limb paralysis comprises a wheelchair frame and two driving wheels;

the wheelchair frame comprises a seat plate, a backup plate, two support square rods and two telescopic square rods; the seat comprises a fixed seat and a movable seat movably arranged in the inner cavity of the fixed seat, and the rear edge of the movable seat exceeds the rear edge of the fixed seat; the fixed seat plate comprises a left semi-fixed seat plate and a right semi-fixed seat plate, and the movable seat plate comprises a left semi-movable seat plate and a right semi-movable seat plate; the backup plate comprises a left backup plate and a right backup plate clung to the right side surface of the left backup plate; side rods are fixedly arranged at the edges of the two sides of the backup plate; the two support square rods are vertically arranged in front of the seat plate; the two telescopic square rods are correspondingly arranged at the bottoms of the two supporting square rods along the transverse direction, and are positioned below the seat plate; the two driving wheels are correspondingly arranged at the bottoms of the two square support rods;

the top end surfaces of the two support square rods are fixedly connected with an electric cabinet, two first motors distributed left and right are installed in the inner cavity of the electric cabinet, and the output shafts of the two first motors are connected with a speed reducer; the output shaft of each speed reducer is connected with a lifting screw rod;

the upper parts of the two square support rods are provided with mounting grooves with outward notches, each mounting groove is free of a front groove wall, and the rear groove wall and the inner groove wall of each mounting groove are provided with vertical bar clamping grooves; a threaded pipe is vertically arranged in each mounting groove; the inner wall of each threaded pipe is provided with an internal thread, and the outer wall of the upper part of each threaded pipe is provided with an external thread; an anti-rotation limit sleeve is sleeved on the upper part of each threaded pipe; two limiting rods are arranged on the side surface of each anti-rotation limiting sleeve in an extending mode, and each limiting rod is inserted into a corresponding vertical clamping groove; each lifting screw rod passes through the lower surface of the electric cabinet and the top end surface of the supporting square rod and is screwed into the corresponding threaded pipe;

the lower part of each threaded pipe is sleeved with a mounting box, the front outer side wall of each mounting box is provided with a second motor and a third motor, and the second motor and the third motor are distributed up and down; the outer top wall of each mounting box is provided with a fourth motor; the output shaft of each second motor is connected with a push-pull screw rod, each push-pull screw rod is sleeved with a fixed sleeve rod, the tail end of each push-pull screw rod is connected with an adjusting box, and the adjusting boxes are fixedly arranged on the upper surface of the movable seat plate exposed out of the fixed seat plate; the output shaft of each third motor is connected with a hexagonal sleeve, each hexagonal sleeve is internally provided with a hexagonal polish rod in a penetrating way, one end of each hexagonal polish rod is exposed out of the corresponding hexagonal sleeve, each hexagonal sleeve is sleeved with a fixed sleeve rod I, one end of each hexagonal polish rod exposed out of the hexagonal sleeve is connected with a worm, each worm is located in the corresponding adjusting box and is provided with a worm wheel, the center of each worm wheel is fixedly provided with a rotary rod, each rotary rod is fixedly connected with the corresponding side rod, the upper top wall and the rear side wall of each adjusting box are jointly provided with a limiting groove, and the bottom of each side rod is located in the limiting groove; each fixed loop bar and the fixed loop bar I at the corresponding side are fixed on the rear side wall of the corresponding installation box in an up-down distribution manner; the output shaft of each fourth motor is connected with a worm I, each worm I is provided with a worm wheel I, each worm wheel I is screwed on the upper part of the corresponding threaded pipe, and each worm wheel I is positioned at the top end of the corresponding anti-rotation limiting sleeve; the top end of each worm wheel I is provided with a compression nut, and each compression nut is screwed on the upper part of each threaded pipe;

the inner cavities of the two telescopic square rods are provided with fifth motors, the output shafts of the fifth motors are connected with speed reducers I, the output shafts of the speed reducers I are connected with telescopic lead screws, and universal wheels are arranged at the other ends of the telescopic lead screws.

Further, both driving wheels are provided with a damper.

Further, the connecting surfaces of the two supporting square rods and the two telescopic square rods and the connecting surface of the adjusting box and the movable seat plate are provided with reinforcing ribs.

Further, the wheelchair frame is provided with armrests on both sides of the seat.

Further, both sides of the fixed seat plate are respectively welded and fixed with the fixed loop bars I at the corresponding sides.

Further, an adjusting handle is arranged on a control platform of the electric cabinet.

Further, electromagnetic locks are arranged on the left backup plate and the right backup plate together.

Further, the two driving wheels are electrically connected with the electric cabinet, the first motor and the electric cabinet, the second motor and the electric cabinet, the third motor and the electric cabinet, the fourth motor and the electric cabinet, and the fifth motor and the electric cabinet.

Further, a pedal is provided between the two driving wheels.

Further, the seat plate is provided with a stool hole.

The utility model has reasonable and reliable structural design, solves the problem that the paralyzed patient of lower limb cannot sit on the existing wheelchair independently by designing the seat plate and the backup plate which can deflect left and right, and further improves the applicability due to adjustable heights of the seat plate and the backup plate.

Drawings

Fig. 1 is a schematic structural view of the present utility model.

Fig. 2 is a partial enlarged view at D in fig. 1.

Fig. 3 is a partial enlarged view at E in fig. 1.

FIG. 4 is a schematic view of the positional relationship between a threaded pipe and a mounting box in the present utility model.

In the figure: the device comprises a seat plate, a backup plate, a 103-supporting square rod, a 104-telescopic square rod, a 105-side rod, a 106-vertical bar clamping groove, a 2-driving wheel, a 3-electric cabinet, a 4-first motor, a 5-lifting screw rod, a 6-anti-rotation limit sleeve, a 7-mounting box, a 8-second motor, a 9-third motor, a 10-fourth motor, a 11-fixed sleeve rod, a 12-adjusting box, a 13-fixed sleeve rod I, a 14-worm I, a 15-worm wheel I, a 16-compression nut, a 17-fifth motor, a 18-universal wheel, a 19-reinforcing rib, a 20-handrail, a 21-adjusting handle, a 22-electromagnetic lock and a 23-pedal.

Detailed Description

A self-help intelligent wheelchair for patients with lower limb paralysis comprises a wheelchair frame and two driving wheels 2;

the wheelchair frame comprises a seat 101, a backup plate 102, two support square rods 103 and two telescopic square rods 104; the seat 101 comprises a fixed seat and a movable seat movably arranged in the inner cavity of the fixed seat, and the rear edge of the movable seat exceeds the rear edge of the fixed seat; the fixed seat plate comprises a left semi-fixed seat plate and a right semi-fixed seat plate, and the movable seat plate comprises a left semi-movable seat plate and a right semi-movable seat plate; the backup plate 102 comprises a left backup plate and a right backup plate clung to the right side surface of the left backup plate; side bars 105 are fixedly arranged on the two side edges of the backup plate 102; two square support rods 103 are vertically arranged in front of the seat plate 101; the two telescopic square rods 104 are correspondingly arranged at the bottoms of the two supporting square rods 103 along the transverse direction, and the two telescopic square rods 104 are positioned below the seat 101; the two driving wheels 2 are correspondingly arranged at the bottoms of the two square support rods 103;

the top end surfaces of the two support square rods 103 are fixedly connected with an electric cabinet 3 together, two first motors 4 distributed left and right are installed in the inner cavity of the electric cabinet 3, and the output shafts of the two first motors 4 are connected with speed reducers; the output shaft of each speed reducer is connected with a lifting screw rod 5;

the upper parts of the two square support rods 103 are provided with mounting grooves with outward notches, each mounting groove is provided with no front groove wall, and the rear groove wall and the inner groove wall of each mounting groove are provided with vertical bar clamping grooves 106; a threaded pipe is vertically arranged in each mounting groove; the inner wall of each threaded pipe is provided with an internal thread, and the outer wall of the upper part of each threaded pipe is provided with an external thread; the upper part of each threaded pipe is sleeved with an anti-rotation limit sleeve 6; two limit rods are arranged on the side surface of each anti-rotation limit sleeve 6 in an extending mode, and each limit rod is inserted into a corresponding vertical bar clamping groove 106; each lifting screw rod 5 passes through the lower surface of the electric cabinet 3 and the top end surface of the supporting square rod 103 and is screwed into the corresponding threaded pipe;

the lower part of each threaded pipe is sleeved with a mounting box 7, the front outer side wall of each mounting box 7 is provided with a second motor 8 and a third motor 9, and the second motor 8 and the third motor 9 are distributed up and down; the outer top wall of each mounting box 7 is provided with a fourth motor 10; the output shaft of each second motor 8 is connected with a push-pull screw rod, each push-pull screw rod is sleeved with a fixed sleeve rod 11, the tail end of each push-pull screw rod is connected with an adjusting box 12, and the adjusting boxes 12 are fixedly arranged on the upper surface of the movable seat plate exposed out of the fixed seat plate; the output shaft of each third motor 9 is connected with a hexagonal sleeve, each hexagonal sleeve is internally provided with a hexagonal polish rod in a penetrating way, one end of each hexagonal polish rod is exposed out of the corresponding hexagonal sleeve, each hexagonal sleeve is sleeved with a fixed sleeve rod I13, one end of each hexagonal polish rod exposed out of the hexagonal sleeve is connected with a worm, each worm is located in the corresponding adjusting box 12, each worm is provided with a worm wheel, the center of each worm wheel is fixedly provided with a rotary rod, each rotary rod is fixedly connected with the corresponding side rod 105, the upper top wall and the rear side wall of each adjusting box 12 are jointly provided with a limiting groove, and the bottom of each side rod 105 is located in the limiting groove; each fixed loop bar 11 and the fixed loop bar I13 on the corresponding side are fixed on the rear side wall of the corresponding installation box 7 in an up-down distribution manner; the output shaft of each fourth motor 10 is connected with a worm I14, each worm I14 is provided with a worm wheel I15, each worm wheel I15 is screwed on the upper part of the corresponding threaded pipe, and each worm wheel I15 is positioned at the top end of the corresponding anti-rotation limiting sleeve 6; the top end of each worm wheel I15 is provided with a compression nut 16, and each compression nut 16 is screwed on the upper part of each threaded pipe;

the inner cavities of the two telescopic square rods 104 are provided with fifth motors 17, the output shafts of the fifth motors 17 are connected with speed reducers I, the output shafts of the speed reducers I are connected with telescopic lead screws, and universal wheels 18 are arranged at the other ends of the telescopic lead screws.

When the intelligent wheelchair is in operation, a paralyzed patient of lower limb lying on the bed is commanded to approach the bedside by remote control or sound control, two telescopic square rods 104 of the intelligent wheelchair slowly extend into the bed bottom under the driving action of a fifth motor 17, meanwhile, a fourth motor 10 drives a worm I14, a worm wheel I15 meshed with the worm I14 is fixed and does not rotate, the worm I14 deflects in a plane under the combined action of the fourth motor 10 and the worm wheel I15 so that the fourth motor 10 and the installation box 7 deflect in a plane together with the worm I14, and the seat 101 and the backup plate 102 deflect into two parts with left and right included angles along with the plane of the installation box 7; then the intelligent wheelchair is close to the bed edge and aims at the paralyzed patient of the lower limb; the third motor 9 drives the hexagonal polish rod to do rotary motion through the hexagonal sleeve, so as to drive the worm and the worm wheel to do rotary motion, and the rotary rod at the center of the worm wheel drives the side rod 105 to be placed on the leaning plate 102; then the second motor 8 drives the push-pull screw rod to enable the adjusting box 12 to move so as to push the movable seat plate out of the inner cavity of the fixed seat plate, and the left leaning plate and the right leaning plate move together with the adjusting box 12; then the first motor 4 drives the lifting screw rod, a threaded pipe in threaded connection with the lifting screw rod can move upwards or downwards so as to control the height of the mounting box 7, and the seat plate 101 and the backup plate 102 are adjusted to change along with the change of the height of the mounting box 7 so as to meet the requirements of the heights of different beds; at this time, the paralyzed patient of lower limb leans on his own body, and the fourth motor 10 is remotely controlled or controlled by sound to drive the seat 101 and the back plate 102 on the same side to rotate together to be padded under the body of the person; the paralyzed patient of lower limb turns over again towards the other side, and the fourth motor 10 is controlled to drive the seat 101 and the back plate 102 at the other side to rotate together to be padded under the body of the person; then the paralyzed patient of lower limb lies on himself and returns to normal, the movable seat plate is commanded to return to the original position by remote control or sound control, so that the lower leg can be bent downwards; then, the lower limb paralyzed patient remotely controls or controls the third motor 9 to lift the backup plate 102 so that the body is in a sitting posture; finally, the adjusting handle 21 is controlled to adjust the height of the intelligent wheelchair, so that the purpose of autonomous action is achieved.

As shown in fig. 1, both driving wheels 2 are provided with shock absorbers.

As shown in fig. 1, the connection surfaces of the two support square rods 103 and the two telescopic square rods 104 and the connection surfaces of the adjusting box 12 and the movable seat plate are respectively provided with a reinforcing rib 19.

As shown in fig. 1, the wheelchair frame is provided with armrests 20 on both sides of the seat 101.

Both sides of the fixed seat plate are respectively welded and fixed with the fixed loop bars I13 at the corresponding sides.

As shown in fig. 1, an adjusting handle 21 is mounted on the control platform of the electric cabinet 3.

As shown in fig. 1, the left and right back plates are commonly provided with electromagnetic locks 22.

The two driving wheels 2 are electrically connected with the electric cabinet 3, the first motor 4 is electrically connected with the electric cabinet 3, the second motor 8 is electrically connected with the electric cabinet 3, the third motor 9 is electrically connected with the electric cabinet 3, the fourth motor 10 is electrically connected with the electric cabinet 3, and the fifth motor 17 is electrically connected with the electric cabinet 3.

As shown in fig. 1, a pedal 23 is provided between the two drive wheels 2.

As shown in fig. 1, the seat 101 is provided with a stool hole.

In the description of the present utility model, it should be understood that the orientation or positional relationship indicated is based on the orientation or positional relationship shown in the drawings, and is merely for convenience in describing the present utility model and simplifying the description, and does not indicate or imply that the apparatus or element referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims (10)

1. The utility model provides a lower limb paralysis patient self-service intelligent wheelchair which characterized in that: comprises a wheelchair frame and two driving wheels (2);

the wheelchair frame comprises a seat plate (101), a backup plate (102), two support square rods (103) and two telescopic square rods (104); the seat (101) comprises a fixed seat and a movable seat movably arranged in the inner cavity of the fixed seat, and the rear edge of the movable seat exceeds the rear edge of the fixed seat; the fixed seat plate comprises a left semi-fixed seat plate and a right semi-fixed seat plate, and the movable seat plate comprises a left semi-movable seat plate and a right semi-movable seat plate; the backup plate (102) comprises a left backup plate and a right backup plate clung to the right side surface of the left backup plate; side rods (105) are fixedly arranged at the edges of the two sides of the backup plate (102); two support square rods (103) are vertically arranged in front of the seat plate (101); the two telescopic square rods (104) are correspondingly arranged at the bottoms of the two supporting square rods (103) along the longitudinal direction, and the two telescopic square rods (104) are positioned below the seat plate (101); the two driving wheels (2) are correspondingly arranged at the bottoms of the two square supporting rods (103);

the top end surfaces of the two supporting square rods (103) are fixedly connected with an electric cabinet (3) together, two first motors (4) distributed left and right are installed in the inner cavity of the electric cabinet (3), and output shafts of the two first motors (4) are connected with speed reducers; an output shaft of each speed reducer is connected with a lifting screw rod (5);

the upper parts of the two square support rods (103) are provided with mounting grooves with outwards-facing notches, each mounting groove is free of a front groove wall, and the rear groove wall and the inner groove wall of each mounting groove are provided with vertical strip clamping grooves (106); a threaded pipe is vertically arranged in each mounting groove; the inner wall of each threaded pipe is provided with an internal thread, and the outer wall of the upper part of each threaded pipe is provided with an external thread; the upper part of each threaded pipe is sleeved with an anti-rotation limit sleeve (6); two limiting rods are arranged on the side surface of each anti-rotation limiting sleeve (6) in an extending mode, and each limiting rod is inserted into a corresponding vertical clamping groove (106); each lifting screw rod (5) passes through the lower surface of the electric cabinet (3) and the top end surface of the supporting square rod (103) to be screwed in the corresponding threaded pipe;

the lower part of each threaded pipe is sleeved with a mounting box (7), the front outer side wall of each mounting box (7) is provided with a second motor (8) and a third motor (9), and the second motor (8) and the third motor (9) are distributed up and down; the outer top wall of each installation box (7) is provided with a fourth motor (10); the output shaft of each second motor (8) is connected with a push-pull screw rod, each push-pull screw rod is sleeved with a fixed sleeve rod (11), the tail end of each push-pull screw rod is connected with an adjusting box (12), and the adjusting boxes (12) are fixedly arranged on the upper surface of the movable seat plate exposed out of the fixed seat plate; the output shaft of each third motor (9) is connected with a hexagonal sleeve, each hexagonal sleeve is internally provided with a hexagonal polish rod in a penetrating way, one end of each hexagonal polish rod is exposed out of the corresponding hexagonal sleeve, each hexagonal sleeve is sleeved with a fixed sleeve rod I (13), one end of each hexagonal polish rod exposed out of the hexagonal sleeve is connected with a worm, each worm is positioned in the corresponding adjusting box (12), each worm is provided with a worm wheel, the center of each worm wheel is fixedly provided with a rotary rod, each rotary rod is fixedly connected with the corresponding side rod (105), the upper top wall and the rear side wall of each adjusting box (12) are jointly provided with a limiting groove, and the bottom of each side rod (105) is positioned in the limiting groove; each fixed loop bar (11) and the fixed loop bar I (13) at the corresponding side are fixed on the rear side wall of the corresponding installation box (7) along the upper and lower distribution; an output shaft of each fourth motor (10) is connected with a worm I (14), each worm I (14) is provided with a worm wheel I (15), each worm wheel I (15) is screwed on the upper part of the corresponding threaded pipe, and each worm wheel I (15) is positioned at the top end of the corresponding anti-rotation limit sleeve (6); the top end of each worm wheel I (15) is provided with a compression nut (16), and each compression nut (16) is screwed on the upper part of each threaded pipe;

the inner cavities of the two telescopic square rods (104) are provided with fifth motors (17), the output shafts of the fifth motors (17) are connected with speed reducers I, the output shafts of the speed reducers I are connected with telescopic lead screws, and universal wheels (18) are arranged at the other ends of the telescopic lead screws.

2. The self-help intelligent wheelchair for paralyzed lower limbs patients according to claim 1 is characterized in that: the two driving wheels (2) are provided with shock absorbers.

3. The self-help intelligent wheelchair for paralyzed lower limbs patients according to claim 1 is characterized in that: the connecting surfaces of the two supporting square rods (103) and the two telescopic square rods (104) and the connecting surfaces of the adjusting box (12) and the movable seat plate are respectively provided with a reinforcing rib (19).

4. The self-help intelligent wheelchair for paralyzed lower limbs patients according to claim 1 is characterized in that: the wheelchair frame is provided with armrests (20) on both sides of the seat (101).

5. The self-help intelligent wheelchair for paralyzed lower limbs patients according to claim 1 is characterized in that: both sides of the fixed seat plate are respectively welded and fixed with the fixed loop bars I (13) at the corresponding sides.

6. The self-help intelligent wheelchair for paralyzed lower limbs patients according to claim 1 is characterized in that: an adjusting handle (21) is arranged on a control platform of the electric cabinet (3).

7. The self-help intelligent wheelchair for paralyzed lower limbs patients according to claim 1 is characterized in that: electromagnetic locks (22) are arranged on the left backup plate and the right backup plate together.

8. The self-help intelligent wheelchair for paralyzed lower limbs patients according to claim 1 is characterized in that: the two driving wheels (2) are electrically connected with the electric cabinet (3), the first motor (4) is electrically connected with the electric cabinet (3), the second motor (8) is electrically connected with the electric cabinet (3), the third motor (9) is electrically connected with the electric cabinet (3), the fourth motor (10) is electrically connected with the electric cabinet (3), and the fifth motor (17) is electrically connected with the electric cabinet (3).

9. The self-help intelligent wheelchair for paralyzed lower limbs patients according to claim 1 is characterized in that: a pedal (23) is arranged between the two driving wheels (2).

10. The self-help intelligent wheelchair for paralyzed lower limbs patients according to claim 1 is characterized in that: the seat plate (101) is provided with a stool hole.