CN106344288B - A kind of standing rehabilitation wheelchair vehicle with backrest seat and equipped with the seat - Google Patents

Abstract

The invention provides a seat with a backrest, which belongs to the field of wheelchairs. In addition, the present invention also provides a standing rehabilitation wheelchair provided with the seat with a backrest. The seat with a backrest mainly includes a foldable chair, a driver, and a telescopic assembly. The driver and the telescopic assembly are installed on the chassis of the standing wheelchair. The telescopic assembly includes a horizontal assembly and a vertical assembly. on the vertical assembly. The seat with a backrest has a telescopic function, and can provide a chair for a user to sit on when stretched, and does not increase the space volume of the wheelchair when it is shrunk. The wheelchair is suitable for patients with impaired lower limbs, and the seat with backrest is especially suitable for patients with high paraplegia and weakness in the waist.

Description

Seat with backrest and standing rehabilitation wheelchair equipped with the seat

technical field

The invention relates to the technical field of scooter, in particular to a seat with a backrest and a standing rehabilitation wheelchair equipped with the seat.

Background technique

Although existing standing rehabilitation wheelchairs can help patients with impaired lower limbs to stand up and allow them to take care of themselves, most of the users are paralyzed people, people with inconvenient legs and feet, or frail elderly. Due to their own physical reasons, these people are not suitable for standing for a long time, and they need to sit down and rest for a while after standing for two hours. If the user drives the standing rehabilitation wheelchair outdoors and cannot find a place to sit down and rest, it will be detrimental to the health of the user. Although the standing rehabilitation wheelchair can allow the user to change from a standing posture to a sitting posture, if there is no support from other objects, the user's calf will still be supported by the wheelchair, and the center of gravity of the body will move forward. Less than a break. For patients with high paraplegia or weakness in the waist, when they sit down, the waist needs to be supported.

To sum up, those with damaged lower limbs are not suitable for long-term use of standing rehabilitation wheelchairs to stand without sitting down and resting. Patients with high paraplegia or waist weakness need not only to rest their lower limbs, but also to support their waists.

Therefore, it is of great significance to allow the user to sit down and rest at any time on the standing rehabilitation wheelchair, free the calf without resorting to external help.

Contents of the invention

The object of the present invention is to provide a seat with a backrest. The seat with a backrest is a seat with a backrest. The seat with a backrest includes a driver, a telescopic assembly and a foldable chair. The driver is fixedly installed on the supporting surface. The bottom surface of the telescopic assembly and the driver are installed on the same support surface, and the driver drives the telescopic assembly to expand and contract, and the foldable chair is connected to the telescopic assembly; wherein, the foldable chair includes a foldable seat surface , a chair arm and a backrest; wherein the telescopic assembly drives the foldable chair surface to expand and fold, the chair arm is hinged to the outer end of the foldable chair surface, and the backrest is connected between the chair arms.

Preferably, the foldable chair surface includes a main board, side boards hinged at both ends of the main board, and ends of the side boards are hinged with the chair arm.

Preferably, a hinge seat is provided on the outside of the side plate, the side plate and the chair arm are hinged through the hinge seat, the end of the chair arm is provided with a hinge ear, and a connecting rod is hinged on the hinge ear, and the connection The other end of the rod is hinged to the lower part of the main board.

Preferably, the telescopic assembly includes a horizontal assembly and a vertical assembly; the bottom surface of the horizontal assembly is fixedly installed on the support surface on which the driver is installed, and the vertical assembly is installed at the end of the horizontal assembly.

Preferably, the horizontal assembly includes a first assembly and a second assembly; wherein, the first assembly includes a first slide rail fixedly installed on the support surface, a fixed stopper installed at the end of the first slide rail, The first slider slides on a slide rail, and the second component is connected with the first slider. The second assembly mainly includes a connecting plate whose front end is connected to the first slider and whose end is connected to the bottom end of the telescopic tube, a second slide rail arranged on the connection plate, and a first slide rail sliding on the second slide rail. Two sliders, a connecting seat fixed on the second slider and passing through the connecting plate.

Preferably, the seat with a backrest further includes a support wheel, the support wheel is connected to the end of the connecting plate, and the support wheel is preferably a shock-absorbing wheel.

Preferably, the second assembly further includes a spring and a polished rod, the polished rod is connected to the middle of the front end of the connecting plate and passes through the second slider, the polished rod is covered with a spring, and one end of the spring is connected to the The other end is connected to the telescopic tube, and the spring is always in a compressed state.

Preferably, the backrest preferably uses non-elastic cloth.

Preferably, the vertical assembly mainly includes a telescopic tube and an extension sleeve. On the tube, the extension sleeve is also provided with an extension rod connected with the side plate and a power rod hinged with the connecting seat.

A standing rehabilitation wheelchair provided with a seat with a backrest is characterized in that the seat with a backrest according to any one of claims 1 to 7 is connected to the rear of the chassis of the wheelchair vehicle. The control device of the wheelchair integratedly controls the contraction and extension of the seat with a backrest.

In summary, a seat with a backrest and a standing rehabilitation wheelchair equipped with the seat of the present invention have the advantages of ingenious design, compact structure, simple operation, safety and stability, and the like.

It should be understood that both the foregoing general description and the following detailed description are exemplary illustrations and explanations, and should not be used as limitations on the claimed content of the present invention.

Description of drawings

With reference to the accompanying drawings, more objects, functions and advantages of the present invention will be clarified through the following description of the embodiments of the present invention, wherein:

Fig. 1 schematically shows that the user operates the present invention and is provided with the schematic diagram of standing rehabilitation wheelchair vehicle with backrest seat and sits down;

Fig. 2 schematically shows that the user operates the present invention and is provided with the schematic diagram of standing rehabilitation wheelchair station with back seat;

Fig. 3 schematically shows a schematic structural view of the deployment of a seat with a backrest in the present invention;

Fig. 4 schematically shows a schematic structural view of the deployment of a seat with a backrest in the present invention;

Fig. 5 schematically shows a structure diagram of a retracted seat with a backrest according to the present invention.

Detailed ways

The objects and functions of the present invention and methods for achieving the objects and functions will be clarified by referring to the exemplary embodiments. However, the present invention is not limited to the exemplary embodiments disclosed below; it can be implemented in various forms. The essence of the description is only to help those skilled in the relevant art comprehensively understand the specific details of the present invention.

Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. In the drawings, the same reference numerals represent the same or similar components, or the same or similar steps.

A standing rehabilitation wheelchair 100 provided with a seat with a backrest, as shown in Figure 1 and Figure 2, is connected with a seat 200 with a backrest at the rear of the chassis of the wheelchair 100, and the seat 200 with a backrest is connected to on the chassis plate 112.

The seat 200 with a backrest mainly includes a driver 210 , a telescoping assembly and a foldable chair 260 .

The driver 210 is used to provide power for the expansion and contraction of the foldable chair 260 , as shown in FIG. 1 , FIG. 2 and FIG. 3 , and includes a fixing part 11 and a driving part 12 . The fixing part 11 is fixedly installed on the chassis plate 112 of the standing rehabilitation wheelchair vehicle 100 .

The driver 210 is electrically connected to the control device 101 of the standing rehabilitation wheelchair 100 , and the control device 101 can control the extension or shortening of the driving part 12 of the driver 210 .

The foldable chair 260 has a height-adjustable function and a retractable function, as shown in FIGS.

The foldable chair surface has a folding function and includes a main board 61 and side boards 62 hinged on both sides of the main board 61 . The main board 61 and side boards 62 are preferably hinged by hinges 68 .

The chair arm 63 is mainly used to provide the device for the user to put the arm and connect the backrest 64. The side plate 62 is provided with a hinged seat 65, the side plate 62 is hinged with the chair arm 63 through the hinged seat 65, and the lower end of the middle part of the chair arm 63 is provided with a hinge The ear 66 is hinged with a connecting rod 67 on the hinged ear 66 , and the other end of the connecting rod 67 is hinged at the bottom of the main board 61 . The arm 63 rotates as the side panel 62 is folded.

The backrest 64 is arranged in the middle of the chair arm 63 , preferably made of non-elastic cloth, which can shrink along with the chair arm 63 . When the foldable chair 260 is stretched, the backrest 64 is in the maximum state, which can be used by patients with weak waist or high paraplegia.

The telescopic assembly is used to drive the folding and unfolding of the foldable chair 260 and adjust the position where the seat with backrest 200 stretches out from the wheelchair 100 and the height of the stretched position. The telescopic assembly includes a horizontal assembly 220 and a vertical assembly 240 .

The horizontal component 220 adjusts the length of the seat with backrest 200 protruding from the wheelchair 100 , and includes a first component 222 and a second component 223 .

The first component 222 , as shown in FIG. 3 , includes a first sliding rail 21 , a first sliding block 22 and a fixed stop 23 .

The first sliding rail 21 is fixedly mounted on the chassis plate 112 , the first sliding block 22 slides on the first sliding rail 21 , and a fixed stopper 23 is provided at the end of the first sliding rail 21 .

The second assembly 223 , as shown in FIGS. 3 and 5 , mainly includes a connecting plate 31 , a second sliding rail 32 , a second sliding block 33 , a connecting seat 36 , a polished rod 34 and a spring 35 .

The connecting plate 31 is provided with a through hole in the middle, the front end is connected with the upper part of the first slider 22, the upper part of the end is connected with the bottom end of the vertical assembly 240, and the lower part is connected with the supporting wheel 37, and the lowest point of the supporting wheel 37 is connected with the wheel of the wheelchair 100. minimum at the same level. The connecting plate 31 is provided with a second slide rail 32 , and the second slide block 33 slides on the second slide rail 32 .

The connecting base 36 is fixed on the second sliding block 33 and connected to the end of the driving part 12 through the through hole of the connecting plate 31 .

The polished rod 34 is fixedly connected to the middle part of the upper end of the connecting plate 31 and passes through the second slider 33. The polished rod is covered with a spring 35, one end of the spring 35 is connected with the second slider 33, and the other end is connected with the vertical assembly 240. The spring 35 is always in a compressed state.

The vertical component 240 is used to adjust the telescopic height of the seat with a backrest and drive the foldable chair 260 to fold and unfold, and mainly includes a telescopic tube 41 and a stretch cover 43 .

The telescopic tube 41 is the supporting chair leg of the foldable chair 260, and has the function of stretching and adjusting. It is preferably provided with a pipe clip 42 at the telescoping place. When the pipe clip 42 is opened, the telescopic pipe 41 can be stretched. Closing the pipe clip 42 can rely on frictional force. The telescopic tube 41 is fixed. The bottom end of the telescopic tube 41 is connected to the connecting plate 31 , and the top end is fixedly connected to the main board 61 .

The extension sleeve 43 is installed on the telescopic tube 41, and four extension rods 44 and power rods 45 are arranged around the extension sleeve 43, and the four extension rods 44 are respectively hinged with the side plates 62. The power rod 45 is hinged to the upper end of the connecting seat 36 .

The connecting seat 36 and the power rod 45 can convert the driving force of the extension and shortening of the driving part 12 into the sliding force of the extension sleeve 43 on the telescopic tube 41, and the sliding of the telescopic tube 41 drives the extension rod 44 to expand or shrink, driving the foldable chair 260 Stretch or shrink.

The working principle of the whole belt back seat 200 is as follows: the driving part 12 is elongated to give the connecting seat 36 and the second sliding block 33 a tendency to slide outwards, but because the second sliding block 33 is subjected to the resistance of the spring 35, it will pull The first sliding block 22 without resistance slides first, and the sliding of the first sliding block 22 drives the second component 223 to slide outward.

The first slider 22 slides to the fixed stopper 23 and is blocked and stops sliding. At this time, the driving part 12 continues to elongate, and the thrust is greater than the elastic force of the spring 35. The second slider 33 opens and slides, and the motion of the second slider 33 passes through The connecting seat 36 and the power rod 45 are transformed into an extension sleeve 43 that slides upward on the telescopic tube 41 , and the extension rod 44 unfolds the foldable chair 260 . A pressure sensor is arranged between the stretch cover 43 and the main board 41. When the pressure sensor feels the force, the push rod motor stops moving immediately, and the expansion and contraction of the seat with backrest 200 is completed.

When the seat with backrest 200 shrinks, the driving part 12 shortens, and the second slider 33 slides first under the tension of the driving part 12 and the elastic force of the spring 35. After the folding chair 260 completes the shrinking movement, the sliding of the second slider 33 stops. The first sliding block 22 starts to slide, and when the driving part 12 is shortened to the shortest position, the first sliding block 22 stops sliding.

The width of the first component 222 and the second component 223 is consistent with the width of the chassis plate 112 of the wheelchair, and the width of the foldable chair 260 after folding is consistent with the width of the chassis plate 112. , will not increase the space occupied by the wheelchair 100, nor will it affect the use of the wheelchair by the user.

The telescoping function of the telescopic tube 41 determines the height position of the foldable chair 260, and the height position of the foldable chair 260 determines the length of the seat with backrest 200 protruding from the chassis plate 112 according to the movement position of the second component 223, so different heights People can adjust the position where the belt back seat 200 stretches out from the wheelchair 100 and the height position of sitting down according to their height.

The advantage of the seat with backrest 200 is that it has a backrest, which is very beneficial for patients with high paraplegia and weak waist. It is safer for patients to use this kind of seat support, and they will not feel tired on the waist after sitting and driving for a long time.

To sum up, the user can easily switch between standing and driving the wheelchair and sitting down when driving the standing rehabilitation wheelchair 100 provided with a seat with a backrest according to the present invention, and can also choose to sit and drive the wheelchair. The invention relates to a seat with a backrest, which has a telescopic function, and can be used for a user to sit down when stretched, and does not increase the occupied space volume of the wheelchair when contracted. There is a backrest on the seat, which is more beneficial to patients with height cuts and patients with weakness in the waist. The height of the seat with a backrest is adjustable, and the distance extending out of the chassis is adjustable, which is better suitable for people of different heights and weights. The user can sit down and rest anytime and anywhere according to his or her needs. When the user drives the wheelchair 100 outdoors, the importance of the seat with backrest 200 will be fully reflected. Moreover, no matter whether the user sits down to eat or work, he does not need to disengage from the wheelchair, and he does not need to re-wear the hip support pad of the wheelchair when standing after sitting down, which greatly increases the convenience of using the wheelchair. The user can choose to stand and drive the wheelchair, and also can choose to sit and drive the wheelchair. Sitting and standing can be used alternately, so that blood can be circulated, which is more beneficial to the user's body. Finally, a standing rehabilitation wheelchair of the present invention has the advantages of ingenious design, compact structure, simple operation, safety and stability.

The figures are merely schematic and not drawn to scale. While the invention has been described in connection with preferred embodiments, it should be understood that the scope of the invention is not limited to the embodiments described herein.

Other embodiments of the invention will be apparent to and understood by those skilled in the art from consideration of the specification and practice of the invention disclosed herein. The description and examples are considered exemplary only, with the true scope and spirit of the invention defined by the claims.

Claims (6)

1. A seat with a backrest, the seat with a backrest includes a driver, a telescopic assembly and a foldable chair, the driver is fixedly installed on a support surface, the bottom surface of the telescopic assembly is installed on the same support surface as the driver, and The driver drives the telescopic assembly to expand and contract, and the foldable chair is connected to the telescopic assembly; wherein, The foldable chair includes a foldable seat surface, chair arms and a backrest; wherein the telescopic assembly drives the foldable seat surface to expand and fold, the chair arm is hinged to the outer end of the foldable seat surface, and the backrest is connected to between the chair arms; The telescopic assembly includes a horizontal assembly and a vertical assembly; the bottom surface of the horizontal assembly is fixedly installed on the support surface on which the driver is installed, and the vertical assembly is installed at the end of the horizontal assembly; The horizontal assembly includes a first assembly and a second assembly; wherein, the first assembly includes a first slide rail fixedly installed on the support surface, a fixed stopper installed at the end of the first slide rail, The first slider that slides up, the second component is connected with the first slider; The second assembly mainly includes a connection plate whose front end is connected to the first slider and whose end is connected to the bottom end of the vertical assembly, a second slide rail arranged on the connection plate, and a sliding rail that slides on the second slide rail. The second slider, the connecting seat fixed on the second sliding block and passing through the connecting plate, the end of the connecting seat is connected with the driver. 2. A seat with a backrest according to claim 1, characterized in that: The foldable chair surface includes a main board, side boards hinged at both ends of the main board, and the ends of the side boards are hinged with the chair arm; The outside of the side plate is provided with a hinged seat, the side plate and the chair arm are hinged through the hinged seat, the end of the chair arm is provided with a hinged ear, and a connecting rod is hinged on the hinged ear, and the other end of the connecting rod Hinged to the lower part of the main board; The vertical assembly mainly includes a telescopic tube and an extension sleeve, the end of the telescopic tube is installed on the connecting plate and the top of the telescopic tube is connected to the bottom surface of the main board, the extension sleeve is installed on the telescopic tube, The extension sleeve is also provided with an extension rod connected with the side plate and a power rod hinged with the connecting seat. 3. The standing rehabilitation wheelchair vehicle according to claim 1, further comprising a support wheel, the support wheel is connected to the end of the connecting plate, and the support wheel is preferably a shock-absorbing wheel. 4. A seat with a backrest according to claim 1, characterized in that: the second assembly further includes a spring and a polished rod, the polished rod is connected to the middle part of the front end of the connecting plate and passes through the second slide block, the polished rod is covered with a spring, one end of the spring is connected to the second slider, and the other end is connected to the vertical assembly, and the spring is always in a compressed state. 5. A seat with a backrest according to claim 1, wherein the backrest is preferably made of non-elastic cloth. 6. A standing rehabilitation wheelchair provided with a seat with a backrest, characterized in that the rear portion of the chassis of the wheelchair is connected with the seat with a backrest according to any one of claims 1 to 5, so The control device of the wheelchair vehicle is integrated to control the retraction and extension of the seat with a backrest.