CN113350068A

CN113350068A - Multifunctional sitting and standing conversion auxiliary device

Info

Publication number: CN113350068A
Application number: CN202110478716.2A
Authority: CN
Inventors: 薛强; 焦梦丹; 吕竹妍
Original assignee: Tianjin University of Science and Technology
Current assignee: Tianjin University of Science and Technology
Priority date: 2021-04-30
Filing date: 2021-04-30
Publication date: 2021-09-07

Abstract

A multifunctional sitting and standing conversion auxiliary device is characterized by comprising an adjustable U-shaped underframe, a carrier wheel fixedly arranged below the U-shaped underframe, a stand column fixedly arranged on the U-shaped underframe, and anti-rollover mechanisms fixedly arranged on two sides of the U-shaped underframe, a pedal mechanism which is rotatablely arranged on the U-shaped underframe, a handrail mechanism which is fixedly arranged on the U-shaped underframe, two symmetrically arranged seat plate mechanisms which are rotatably arranged on the armrests, a locking mechanism which is fixedly arranged on the seat plate mechanisms, a knee supporting mechanism which is fixedly arranged on the upright post, the lifting hook mechanism comprises a rotating arm, a first electric push rod and a lifting hook mechanism, wherein the rotating arm is rotatably arranged on the stand column, the first electric push rod is rotatably arranged between the stand column and the rotating arm, and the lifting hook mechanism is fixedly arranged on the rotating arm. The sitting and standing conversion auxiliary device can help patients to sit to stand, walk to train and move.

Description

Multifunctional sitting and standing conversion auxiliary device

Technical Field

The invention relates to the technical field of rehabilitation instruments, in particular to a multifunctional sitting and standing conversion auxiliary device.

Background

Sitting to standing is a very important activity of daily life. However, it is very difficult for the elderly or the lower limb-handicapped to realize a normal sitting-standing behavior. In recent years, the aging trend of the elderly population is increasingly obvious, and the elderly people in China are increasing at a rate of 5% per year. The most common of the old people is lower limb disorder, the lower limb walking rehabilitation training is also very important, the lower limb rehabilitation training can increase the muscle strength and the joint flexibility of the lower limbs, reduce the risk of the atrophy of the muscle of the lower limbs of the old people or the lower limb disorder people, delay the decline of the lower limb function of the old people and help the disabled to realize the rehabilitation of the lower limb function, so that the old people or the lower limb disorder people recover the self-care ability of life and improve the life quality.

At present, the types of sitting and standing conversion devices on the market in China are few, the functions are single, people with inconvenient actions, particularly people with lower limb obstacles, are often ignored by the society easily, and the use of an improper auxiliary appliance can cause secondary injury to users. Therefore, it is necessary to develop a multifunctional sitting and standing conversion auxiliary device which is suitable for a wide range of people.

Disclosure of Invention

The invention aims to provide a multifunctional sitting and standing conversion auxiliary device aiming at the technical defects in the prior art.

The technical scheme adopted for realizing the purpose of the invention is as follows:

a multifunctional sitting and standing conversion auxiliary device is characterized by comprising an adjustable U-shaped underframe, a carrier wheel fixedly arranged below the U-shaped underframe, a stand column fixedly arranged on the U-shaped underframe, and anti-rollover mechanisms fixedly arranged on two sides of the U-shaped underframe, a pedal mechanism which is rotatablely arranged on the U-shaped underframe, a handrail mechanism which is fixedly arranged on the U-shaped underframe, two symmetrically arranged seat plate mechanisms which are rotatably arranged on the armrests, a locking mechanism which is fixedly arranged on the seat plate mechanisms, a knee supporting mechanism which is fixedly arranged on the upright post, the lifting hook mechanism comprises a rotating arm, a first electric push rod and a lifting hook mechanism, wherein the rotating arm is rotatably arranged on the stand column, the first electric push rod is rotatably arranged between the stand column and the rotating arm, and the lifting hook mechanism is fixedly arranged on the rotating arm.

The U-shaped underframe comprises two supporting legs and a cross bar, the supporting legs are adjustably arranged on the cross bar, the supporting legs comprise supporting front legs and supporting rear legs, the supporting front legs are slidably sleeved on the supporting rear legs, a plurality of threaded holes are formed in the supporting rear legs, and the supporting rear legs are provided with a plurality of threaded holes

And a positioning screw is arranged on the front support leg.

The pedal mechanism comprises a pedal connecting seat, a pedal plate and a pedal rotating shaft, wherein the pedal plate is rotatably arranged on the pedal connecting seat through the pedal rotating shaft.

Handrail mechanism include several style of calligraphy bracing pieces, L type support column, second electric putter and handrail frame bottom sprag pole, several style of calligraphy bracing pieces slidable ground set up handrail frame bottom sprag pole on, second electric putter rotationally set up several style of calligraphy bracing piece middle parts with L type support column between.

The seat mechanism include seat, seat frame rotation axis and seat frame bottom sprag pole, seat frame slidable ground cup joint seat frame rotation axis on, seat frame and seat frame bottom sprag pole on all be provided with locking screw, seat frame rotation axis rotationally set up seat frame bottom sprag pole on, the seat rotationally set up the seat frame on.

The locking mechanism comprises a handle connecting shaft, a locking connecting rod and a handle, wherein a clamping groove is formed in the handle, the handle is rotatably arranged on the handle connecting shaft, the handle is connected to the locking connecting rod through the clamping groove, and a locking screw is arranged on the handle.

The anti-rollover mechanism comprises an anti-rollover support front frame and an anti-rollover support rear frame, the anti-rollover support front frame is slidably inserted into the anti-rollover support rear frame, and a locking screw is arranged on the anti-rollover support rear frame.

The knee supporting mechanism comprises a knee supporting front frame, a knee supporting rear frame and a knee supporting plate, the knee supporting front frame is slidably sleeved on the knee supporting rear frame, and a locking screw is arranged on the knee supporting front frame.

The rotating arm comprises a front arm and a rear arm, the rear arm is slidably sleeved on the front arm, a plurality of threaded holes are formed in the front arm, and a positioning screw is arranged on the rear arm.

The lifting hook mechanism comprises a U-shaped front rod, a U-shaped rear rod and a lifting hook, the U-shaped front rod is slidably sleeved on the U-shaped rear rod, a plurality of threaded holes are formed in the U-shaped rear rod, a positioning screw is arranged on the U-shaped front rod, and the lifting hook is fixedly arranged on the U-shaped rear rod.

Compared with the prior art, the invention has the beneficial effects that:

the invention relates to a multifunctional sitting and standing conversion auxiliary device, which mainly aims at the elderly with inconvenient lower limb movement or people with lower limb disorder, and can better keep the balance of a rehabilitee. The multifunctional bed can also help the user to change from sitting posture to standing posture and then walking posture, and help the old or the person with lower limb obstruction to transfer from a sofa or a wheelchair to a bed, and can also realize the function of going to the toilet. The invention can adjust the length and width of the U-shaped underframe and the distance of the knee supporting mechanism according to the difference of the height and the shape of the old or the person with lower limb disorder. The height and the rotation angle of the seat plate mechanism are adjusted to meet the requirements of the old or the lower limb obstacle people in different scenes, and the reversible seat plate can meet the requirements of the old or the lower limb obstacle people for walking exercise. In addition, the invention effectively reduces the burden and the working intensity of nursing personnel.

Drawings

FIG. 1 is a rear side view of the multi-functional sit-stand transfer aid;

FIG. 2 illustrates a schematic view of the step mechanism;

FIG. 3 is a schematic view of a seat mechanism;

FIG. 4 is a schematic view of a U-shaped chassis

FIG. 5 is a schematic view of the locking mechanism;

FIG. 6 is a schematic view of a knee support mechanism;

FIG. 7 is a schematic view of a rotary arm structure;

FIG. 8 is a schematic view of the hook mechanism;

FIG. 9 is a schematic view of a sitting posture;

FIG. 10 is a schematic view showing a standing state;

FIG. 11 is a schematic view of a walking state;

FIG. 12 is a schematic view of the seat frame in an opened state;

FIG. 13 is a schematic view of the anti-rollover mechanism;

FIG. 14 is a schematic view of a patient toilet;

Detailed Description

The invention is described in further detail below with reference to the figures and specific examples. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

As shown in FIG. 1, the multifunctional sit-stand conversion auxiliary device of the present invention comprises an adjustable U-shaped chassis 1, a carrier wheel fixedly arranged below the U-shaped chassis, a vertical column 2 fixedly arranged on the U-shaped chassis, anti-rollover mechanisms 3 fixedly arranged on both sides of the U-shaped chassis, a pedal mechanism 4 rotatably arranged on the U-shaped underframe, an armrest mechanism 5 fixedly arranged on the U-shaped underframe, two symmetrically arranged seat plate mechanisms 6 rotatably arranged on the armrest, a locking mechanism 7 fixedly arranged on the seat plate mechanisms, a knee support mechanism 8 fixedly arranged on the upright post, the lifting mechanism comprises a rotating arm 9 which is rotatably arranged on the upright post, a first electric push rod 10 which is rotatably arranged between the upright post and the rotating arm, and a lifting hook mechanism 11 which is fixedly arranged on the rotating arm.

The multifunctional sitting and standing conversion auxiliary device can help patients to complete the conversion from sitting to standing. As shown in fig. 12, the multifunctional sitting/standing conversion assisting device is moved to the front of the patient bed or the front of the wheelchair by the caregiver pushing the armrest mechanism 5, and is braked by the brake caster. The seat plate mechanism 6 is opened to enable the patient to enter the multifunctional seat and stand conversion auxiliary device, then the seat plate mechanism 6 is closed, and finally the seat plate mechanism 6 is locked by the locking mechanism 7. As shown in fig. 3, the seat mechanism 6 includes a seat 601, a seat frame 602, a seat rotating shaft 603 and a seat bottom supporting rod 604, the seat frame 602 is slidably sleeved on the seat rotating shaft 603, the seat frame 602 and the seat bottom supporting rod 604 are respectively provided with a locking screw 605 and a locking screw 606, the seat rotating shaft 603 is rotatably disposed on the seat bottom supporting rod 604, and the seat 601 is rotatably disposed on the seat frame 602. As shown in fig. 5, the locking mechanism 7 includes a handle connecting shaft 701, a locking connecting shaft 702 and a handle 703, the handle 703 is provided with a slot, the handle 703 is rotatably disposed on the handle connecting shaft 701, the handle 703 is connected to the locking connecting shaft 702 through the slot, and the handle 703 is provided with a locking screw 704. Specifically, the locking screw 606 is firstly unscrewed, the seat frame rotating shaft 603 is rotated, the seat frame 602 is opened, the patient enters the multifunctional sitting and standing conversion auxiliary device, finally the seat frame 602 is closed, the patient sits on the seat 601, and then the seat mechanism 6 is locked. Specifically, during locking, the handle 703 is first rotated to clamp the slot on the handle 703 on the locking connecting rod 702, and finally the locking screw 704 is tightened to complete locking. As shown in fig. 9 and 10, when the patient stands, the hip and waist of the patient are firstly fixed by the hanging belt, and the rotating arm 9 performs circular motion by driving the first electric push rod 10 to complete the conversion from sitting to standing.

Further, in order to increase the adjustability of the multifunctional sit-stand conversion auxiliary device of the present invention, and adapt to the heights of different patients, as shown in fig. 3, the height of the seat plate mechanism 6 can be adjusted according to the heights of different patients. Specifically, the height of the seat frame 602 is adjusted up and down according to the environment requirement by unscrewing the locking screw 605, and finally the locking screw 605 is screwed down, so as to adapt to the heights of different patients.

Further, in order to increase the adjustability of the multifunctional sitting-standing conversion auxiliary device of the invention and adapt to the heights of different patients, the length of the rotating arm 9 can be adjusted according to the heights of different patients. As shown in fig. 7, the rotating arm 9 includes a front arm 901 and a rear arm 902, the rear arm 902 is slidably sleeved on the front arm 901, the front arm 901 is provided with a plurality of threaded holes, and the rear arm 902 is provided with a set screw 903. Specifically, when the height needs to be adjusted, the positioning screw 903 is unscrewed, the rear arm 902 is pulled open, the two screw holes are aligned, and finally the screw 903 is tightened to extend or shorten the rotating arm 9, so that the lifting height of the rotating arm is adjusted.

Further, in order to increase the adjustability of the multifunctional sitting/standing conversion assisting device of the present invention to adapt to the difference of leg lengths of different patients, the front-back distance from the knee supporting mechanism 8 to the seat board 601 can be adjusted according to the needs of the patients. As shown in fig. 6, the knee supporting mechanism 8 includes a knee supporting front frame 801, a knee supporting rear frame 802 and a knee supporting plate 803, the knee supporting front frame 801 is slidably sleeved on the knee supporting rear frame 802, and the knee supporting front frame 801 is provided with a threaded hole and a locking screw 804. Specifically, when adjusting the anteroposterior distance, the locking screw 804 is first loosened, and the knee support rear frame 802 is then pulled open to extend or shorten the knee support plate 803, thereby adjusting the anteroposterior distance of the knee support plate 803 to the seat plate 601.

Further, in order to adapt to different body types, the application range of the present invention is wider, and the length of the hook mechanism 11 can also be adjusted according to different body types. As shown in fig. 8, the hook mechanism 11 includes a U-shaped front rod 1101, a U-shaped rear rod 1102 and a hook 1103, the U-shaped front rod 1101 is slidably sleeved on the U-shaped rear rod 1102, the U-shaped rear rod 1102 is provided with a plurality of threaded holes, the U-shaped front rod is provided with a set screw 1104, specifically, the set screw 1104 is firstly unscrewed, the U-shaped rear rod 1102 is pulled open, the two threaded holes are aligned, and finally the set screw 1104 is screwed to extend or shorten the hook mechanism 11, so as to satisfy patients with different body sizes.

Further, in order to satisfy the comfort of the patient's feet in the sitting posture, the patient can place the feet on the pedal mechanism 4 when sitting on the sitting board, as shown in fig. 2, the pedal mechanism 4 includes a pedal connecting seat 401, a pedal plate 403 and a pedal rotating shaft 402, and the pedal plate 403 is rotatably disposed on the pedal connecting seat 401 through the pedal rotating shaft 402.

Further, in order to improve the stability of the multifunctional sitting and standing conversion auxiliary device of the invention and meet the requirements of patients with different body types in the process of standing, the U-shaped underframe 1 can be adjusted. As shown in fig. 1 and 4, the U-shaped chassis comprises two support legs and a cross bar 103, the support legs are adjustably arranged on the cross bar 103, the support legs comprise a support front leg 101 and a support rear leg 102, the support front leg 101 is slidably sleeved on the support rear leg 102, a plurality of threaded holes are formed in the support rear leg 102, and one end of the support front leg is provided with a positioning screw 104. The cross bar 103 is provided with a square opening and a screw 105, and the other end of the front supporting leg 101 is provided with a threaded hole. The length of the U-shaped chassis 1 can be adjusted by first unscrewing the set screw 104 with a thread at the bottom, then pulling the support rear leg 102 open, aligning the two screw positions, and finally tightening the set screw 104, thereby lengthening or shortening the U-shaped chassis 1. The width of the U-shaped chassis 1 can also be adjusted by first unscrewing the screws 105, sliding the support legs between said square openings and finally screwing the screws 105, thereby adjusting the width of the U-shaped chassis 1.

The multifunctional sitting and standing conversion auxiliary device can also realize the function of assisting the patient in walking and training, as shown in fig. 11, after the patient completes the conversion from sitting to standing, the braking of the brake caster is released, the seat plate 601 is turned upwards, and the patient can perform the walking training by the aid of the multifunctional sitting and standing conversion auxiliary device. As shown in fig. 3, the seat board frame 602 can support the patient during walking exercise.

Further, in order to avoid injury caused by poor body balance of patients during walking exercise and improve the safety of the multifunctional sitting and standing conversion auxiliary device, the anti-rollover mechanisms 3 are fixedly arranged on two sides of the U-shaped underframe 1, and the safety of different patients can be ensured by adjusting the length of the anti-rollover mechanisms 3. As shown in fig. 13, the anti-rollover mechanism 3 includes an anti-rollover support front frame 301 and an anti-rollover support rear frame 302, the anti-rollover support front frame 301 is slidably inserted into the anti-rollover support rear frame 302, and the anti-rollover support rear frame 302 is provided with a locking screw 303. Specifically, the locking screw 303 is first unscrewed, the anti-rollover support front frame 301 is pulled open, the two screw holes are aligned, and finally the locking screw 303 is tightened, thereby adjusting the length of the anti-rollover mechanism 3.

In order to facilitate the toilet of the patient, as shown in fig. 1, 3 and 14, a toilet seat opening is formed in the seat board 601, and the patient can be directly transferred from a bed or a wheelchair to a toilet by adjusting the height of the seat board frame 602, so as to meet the toilet requirement of the patient.

In summary, the multifunctional sitting and standing conversion auxiliary device of the invention is mainly aimed at the elderly with mobility-impaired lower limbs or people with lower limb disorders, and the invention can better keep the balance of the rehabilitated people. The multifunctional bed can also help the user to change from sitting posture to standing posture and then walking posture, and help the old or the person with lower limb disorder to transfer from a sofa or a wheelchair to a bed, and can also directly realize the function of going to the toilet. The invention can adjust the length and width of the U-shaped underframe and the distance of the knee supporting mechanism according to the difference of the height and the shape of the old or the person with lower limb disorder. The height and the rotation angle of the seat plate mechanism are adjusted to meet the requirements of the old or the lower limb obstacle people in different scenes, and the reversible seat plate can meet the requirements of the old or the lower limb obstacle people for walking exercise. In addition, the invention effectively reduces the burden and the working intensity of nursing personnel.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, it is possible to make various modifications and improvements without departing from the principle of the present invention, and such modifications and improvements are also within the scope of the present invention.

Claims

1. A multifunctional sitting and standing conversion auxiliary device is characterized by comprising an adjustable U-shaped underframe, a carrier wheel fixedly arranged below the U-shaped underframe, a stand column fixedly arranged on the U-shaped underframe, and anti-rollover mechanisms fixedly arranged on two sides of the U-shaped underframe, a pedal mechanism which is rotatablely arranged on the U-shaped underframe, a handrail mechanism which is fixedly arranged on the U-shaped underframe, two symmetrically arranged seat plate mechanisms which are rotatably arranged on the armrests, a locking mechanism which is fixedly arranged on the seat plate mechanisms, a knee supporting mechanism which is fixedly arranged on the upright post, the lifting hook mechanism comprises a rotating arm, a first electric push rod and a lifting hook mechanism, wherein the rotating arm is rotatably arranged on the stand column, the first electric push rod is rotatably arranged between the stand column and the rotating arm, and the lifting hook mechanism is fixedly arranged on the rotating arm.

2. The multifunctional sit-stand conversion auxiliary device as claimed in claim 1, wherein the U-shaped chassis comprises two support legs and a cross bar, the support legs are adjustably arranged on the cross bar, the support legs comprise a support front leg and a support rear leg, the support front leg is slidably sleeved on the support rear leg, the support rear leg is provided with a plurality of threaded holes, and the support front leg is provided with a positioning screw.

3. The multifunctional sit-stand conversion aid of claim 1, wherein the pedal mechanism comprises a pedal connecting seat, a pedal plate and a pedal rotating shaft, and the pedal plate is rotatably provided on the pedal connecting seat by the pedal rotating shaft.

4. The multifunctional sit-stand conversion auxiliary device as claimed in claim 1, wherein the armrest mechanism comprises a support bar with a shape like a Chinese character 'ji', an L-shaped support post, a second electric push rod and an armrest frame bottom support bar, the support bar with a shape like a Chinese character 'ji' is slidably disposed on the armrest frame bottom support bar, and the second electric push rod is rotatably disposed between the middle part of the support bar with a shape like a Chinese character 'ji' and the L-shaped support post.

5. The multifunctional sit-stand conversion auxiliary device as claimed in claim 1, wherein the seat mechanism comprises a seat, a seat frame rotation shaft and a seat frame bottom support rod, the seat frame is slidably sleeved on the seat frame rotation shaft, the seat frame and the seat frame bottom support rod are both provided with locking screws, the seat frame rotation shaft is rotatably arranged on the seat frame bottom support rod, and the seat is rotatably arranged on the seat frame.

6. The multifunctional sit-stand conversion auxiliary device as claimed in claim 1, wherein the locking mechanism comprises a handle connecting shaft, a locking connecting rod and a handle, the handle is provided with a slot, the handle is rotatably arranged on the handle connecting shaft, the handle is connected to the locking connecting rod through the slot, and the handle is provided with a locking screw.

7. The multifunctional sitting-standing conversion auxiliary device as claimed in claim 1, wherein the anti-rollover mechanism comprises an anti-rollover support front frame and an anti-rollover support rear frame, the anti-rollover support front frame is slidably inserted into the anti-rollover support rear frame, and the anti-rollover support rear frame is provided with a locking screw.

8. The multi-functional sit-stand conversion aid of claim 1, wherein the knee support mechanism comprises a knee support front frame, a knee support rear frame and a knee support plate, the knee support front frame is slidably sleeved on the knee support rear frame, and the knee support front frame is provided with a locking screw.

9. The multifunctional sit-stand conversion aid as claimed in claim 1, wherein the rotation arm comprises a front arm and a rear arm, the rear arm is slidably sleeved on the front arm, the front arm is provided with a plurality of threaded holes, and the rear arm is provided with a set screw.

10. The multifunctional sit-stand conversion auxiliary device as claimed in claim 1, wherein the hook mechanism comprises a U-shaped front rod, a U-shaped rear rod and a hook, the U-shaped front rod is slidably sleeved on the U-shaped rear rod, the U-shaped rear rod is provided with a plurality of threaded holes, the U-shaped front rod is provided with a set screw, and the hook is fixedly arranged on the U-shaped rear rod.