CN103720550A - Convenient wheelchair - Google Patents

Abstract

The invention relates to a wheelchair, in particular to a convenient wheelchair which is convenient for patients to get on and off the bed. The convenient wheelchair includes a chair frame, a bottom frame and a seat plate, the seat plate is fixed to the base through a lifting assembly, the seat plate can freely rotate relative to the bottom frame, and the lifting assembly can slide freely in the front and rear directions relative to the bottom frame. The present invention provides a support platform for the patient, which is used to support the patient's thigh, so that the support platform has the function of moving back and forth relative to the wheelchair main body, and enables the support platform to freely rotate at 360°, so the implementation of the present invention can Help patients get in and out of bed with minimal assistance, even self-guided.

Description

Convenient wheelchair

technical field

The invention relates to a wheelchair, in particular to a convenient wheelchair which is convenient for patients to get on and off the bed.

Background technique

There are multiple wheelchairs in the prior art, and their functions are relatively single, and they are limited to providing the function of walking instead of walking for the patient, and hardly help the patient's getting on and off the bed. The Chinese invention patent with the application number 201110225319.0 provides a wheelchair that is easy to get on and off the bed. The whole seat board provides support for the patient's thigh; and when the patient needs to go to bed from the wheelchair or get off the bed to the wheelchair, the half seat boards of the left and right parts are rotated through 90 degrees under the action of the joystick actuating the connecting rod. ° angle, so as to provide convenience for patients to go to bed or get out of bed. The concrete technical scheme of this invention is as follows: wheelchair, it comprises: vehicle body; a wall is open; means for moving said right seat portion or left seat portion; a space formed under a seat of said vehicle body for receiving a bed for a disabled person; and provided in said vehicle body a retaining plate holding means for moving the seat portion having a link connecting the seat portion to the vehicle body, and for manipulating the A lever for a linkage to move the seat portion between an open position and a closed position. The inventor believes that the concept of this technical solution is relatively simple, and its purpose actually only reaches the primary level of making it easy for patients to get on and off the bed, because it only provides space for the patient to get on and off the bed, without any other substantial help. And this area needs badly a kind of wheelchair that can provide a kind of more convenient getting on and off the bed for the patient.

Contents of the invention

The present invention aims to solve the above technical problems, thereby providing a convenient wheelchair. The convenient wheelchair of the present invention has the function of being convenient for patients to get on and off the bed.

In order to solve the above problems, the present invention provides the following technical solutions:

A convenient wheelchair includes a chair frame, a bottom frame and a seat plate, the seat plate is fixed to the base through a lifting assembly, the seat plate can rotate freely relative to the bottom frame, and the lifting assembly is relatively The bottom frame can slide freely in the front and back direction.

The forward and backward direction in the present invention refers to the same direction as the forward and backward direction of the wheelchair.

After researching the existing wheelchairs, the inventor proposed an advanced idea to solve the difficulty of patients getting in and out of bed: provide a support platform for the patient, which is used to support the patient's thigh, so that the support platform has a front and rear position relative to the main body of the wheelchair. It has the function of moving, and enables the support platform to rotate freely at 360°; the wheelchair with the above functions can realize the following operations: translate the patient from the bed to the support platform, and use the patient's thigh as the force point to make the patient rotate 90° Facing the back of the chair, the patient is adjusted to sit on the support platform, then the support platform is rotated so that the patient faces the back of the chair, and then the support platform is moved to return to a state similar to that of a conventional wheelchair. Considering that the height of the wheelchair is usually inconsistent with the height of the bed, the support platform is set to be able to lift. The supporting platform is a theoretical concept, specifically in the present invention, it is a lifting assembly connected with a seat plate.

Although the implementation of the above-mentioned technical scheme of the present invention cannot be completely self-help, others do not need to spend a lot of physical strength to help the patient. Generally speaking, an 8-year-old child can help a 120-jin adult whose lower limbs are involuntary to sit on the bed. to the wheelchair. Of course, it can also be moved from the wheelchair to the bed, as long as the operation is reversed.

As a preference of the above technical solution, it also includes a lifting armrest arranged on the chair frame.

As a preference of the above technical solution, it also includes control armrests arranged on both sides of the seat plate, the control armrests are connected with the seat plate through a three-link structure; the three-link structure consists of a control rod, It is composed of a diagonal stay rod and a flip frame. One end of the joystick is laterally hinged with the side of the seat plate. The frame is hinged to the seat plate at its connection end, and the diagonal stay rod is also hinged to the joystick, so that the three links have the following functions: push the joystick to rotate, thereby adjusting the flipping of the flip frame, so that The turning frame is switched between the state suitable for lying down and the state suitable for sitting upright.

The implementation of the above-mentioned technical scheme of the present invention enables the patient to have the ability to get on and off the bed by himself. Unless otherwise specified, the patients mentioned in the present invention refer to people with limited or incapacitated lower limbs but healthy upper limbs.

As a preference of the above technical solution, the lifting assembly includes a slider, a chassis, a telescopic rod, a tray and a support rail, and the seat plate is slidably fixed to the support rail through a chute provided at the bottom thereof.

As a preference of the above technical solution, the chute has an obliquely set limit opening suitable for the slide head to slide into.

As a preference for the above technical solution, the lifting armrest is lifted and lowered through a rack and pinion combination; the rack and pinion combination includes a vertically arranged lifting rack fixedly connected with the lifting armrest, and is mated and connected with the lifting rack The lifting gear and the lifting motor, the lifting motor has a bidirectional output shaft, and the lifting gear is arranged on the bidirectional output shaft.

As a preference of the above technical solution, the operating armrest is connected to the operating rod through a rotating shaft and a limit pin.

The present invention has the following technical effects:

1. The present invention provides a support platform for the patient, which is used to support the patient's thigh, so that the support platform has the function of moving back and forth relative to the wheelchair main body, and enables the support platform to rotate freely with 360 °, so the present invention Implementations that help patients get in and out of bed with minimal assistance, or even self-help;

2. The lifting armrest of the present invention can be adjusted according to the height of the seat plate, so that the height of the lifting armrest is suitable for the patient to use when getting on and off the bed;

3. The manipulating part of the present invention includes manipulating armrests, joysticks, and three linkages; these three can realize linkage, so that the turning frame can be adjusted to be suitable for lying flat or sitting by the patient's own upper limbs;

4. The seat board of the present invention can be connected to the lifting assembly through the support rail and the chute, so when the wheelchair of the present invention is in use, the seat board can be extended, for example, into the space above the bed so that the patient can climb from the bed by himself to the seat plate;

5. In addition to being connected to the joystick through the rotating shaft, the steering armrest of the present invention is also provided with a fiber latch, which endows the steering armrest with the function of being reversible and lockable, because when the joystick is forced to rotate 90°, the steering armrest also follows Flip, if the control armrest cannot be moved, the flipped control armrest will prevent the patient from climbing from the bed to the chair seat, so it is designed as a reversible control armrest;

6. The three-link structure of the present invention enables the overturning frame to be turned over in a controlled manner so that the overturning frame is suitable for lying flat or sitting. In fact, it can also shake in a controlled manner. , both feet step on the reversing frame, at this time, the lower limbs can be exercised in a self-service manner by manipulating the manipulating armrest.

Description of drawings

Fig. 1 is the three-dimensional structure schematic diagram of the present invention;

Fig. 2 is a schematic structural view of the lifting assembly and the seat plate of the present invention;

Fig. 3 is a three-link structure of the present invention;

Fig. 4 is an enlarged view of area A in Fig. 2 .

In the figure, 1-chair frame, 2-bottom frame, 3-seat seat plate, 31-chute, 4-lifting armrest, 41-lifting rack, 42-lifting gear, 43-lifting motor, 5-operating armrest, 51-limit pin, 6-joystick, 7-diagonal tie rod, 71-slider, 8-overturn frame, 81-chute, 810-limit port, 9-lifting component, 91-slider, 92-chassis, 93-telescopic rod, 94-pallet, 95-rail.

Detailed ways

The present invention will be further described below in conjunction with the accompanying drawings.

This specific embodiment is only an explanation of the present invention, but not a limitation of the present invention. Any amendments made by those skilled in the art after reading the description of the present invention, as long as they are within the protection scope of the claims, will be protected by the patent law.

As shown in Figures 1-4, a convenient wheelchair includes a chair frame 1, a bottom frame 2, a seat plate 3, and a lifting assembly 9. The lifting assembly 9 is provided with a three-link structure, and the three-link structure It includes a manipulation armrest 5, a joystick 6, a diagonal stay rod 7 and a turning frame 8. One end of the joystick 6 is laterally hinged with the side of the seat plate 3 , and one end of the inclined rod 7 has a sliding head 71 , and the sliding head 71 is slidably fixed in the side chute 81 of the turning frame 8 , and the turning frame 8 Its connecting end is hinged with the seat plate 3, and the diagonal stay rod 7 is also hinged with the joystick 6, so that the three linkages have the following functions: push the joystick 6 to rotate, thereby adjusting the turning frame 8 is overturned, so that the overturn frame 8 can be switched between the state suitable for lying flat and the state suitable for sitting upright. The chute 81 has an oblique limiting opening 810 suitable for sliding the sliding head 71 into. The three-link structure can be locked in one direction through the cooperation of the limiting opening 810 and the sliding head 71 .

The seat plate 3 is fixed to the base 2 through the lifting assembly 9 , so the seat plate 3 can freely rotate relative to the bottom frame 2 , and can freely slide relative to the bottom frame 2 in the front-rear direction.

When the three-link is active, for example, push the control armrest 5 under the transmission of force to make the flip frame 8 turn up, and when it is in a proper position, the slider 71 slides into the limit port 810. Upper locking, now the state of the three-link is suitable for the patient to lie down. If the patient wants to climb from the bed to the wheelchair, he only needs to push the wheelchair towards the bedside, pull out the lifting assembly 9 of the wheelchair, adjust the height of the lifting assembly 9 so that the height of the seat plate 3 is slightly higher than the bed plate, and then the seat plate 3. Through the sliding action of the chute 31 and the support rail 95, the seat plate 3 is invaded into the upper space of the bed, and after adjusting the height of the lifting assembly 9 again, the seat plate 3 is flatly attached to the bed surface. At this time, the patient moves lightly. body, move the thighs to the seat plate 3, then adjust the posture with the thighs as the center, and make yourself sit on the seat plate 3 facing the back of the chair; then adjust the height of the lifting assembly 9, and the wheelchair Get out from the upper space of the bed; then rotate the lifting assembly 9 to make yourself back to the back of the chair, then release the one-way locking of the limit port 810 and the sliding head 71, and then translate the lifting assembly 9 to achieve a very small cost. Strength to transfer myself from bed to wheelchair. In the above process, since the patient moves from the bed to the seat plate 3, it may be hindered by the erected operating armrest 5 at this time. Therefore, in this embodiment, the operating armrest 5 is arranged on the operating rod 6 through a rotating shaft and a fiber latch 51. , giving the steering armrest 5 the function of being rotatable and lockable. the

The above-mentioned lifting assembly 9 may specifically include a slider 91, a chassis 92, a telescopic rod 93, a tray 94, and a support rail 95, and the seat plate 3 is slidably fixed to the support rail 95 through the chute 31 provided at the bottom thereof.

When the present invention is implemented, the lifting assembly 9 is not limited to the above structure, and this embodiment is only an example. Such as adopting air cylinder, oil cylinder, scissor lift assembly, rack and pinion or cable pulley all can, those skilled in the art can foresee that all assemblies with lifting function can realize the above-mentioned purpose.

In order to facilitate the patient's activities, the wheelchair in the present embodiment also has a lifting armrest 4, which realizes lifting through a rack and pinion combination; The lifting rack 41, the lifting gear 42 and the lifting motor 43 cooperating with the lifting rack 41, the lifting motor 42 has a bidirectional output shaft, and the lifting gear 42 is provided on the bidirectional output shaft.

Claims (7)

1. A convenient wheelchair, including a chair frame (1), a bottom frame (2) and a seat plate (3), characterized in that the seat plate (3) is fixed to the base ( 2), the seat plate (3) can freely rotate relative to the bottom frame (2), and the lifting assembly (9) can freely slide in the front and rear directions relative to the bottom frame (2). 2. The convenient wheelchair according to claim 1, further comprising a lifting armrest (4) provided on the chair frame (1). 3. The convenient wheelchair according to claim 1, characterized in that it also includes control armrests (5) arranged on both sides of the seat plate (3), and the control armrests (5) are connected by a three-link The structure is connected to the seat plate (3); the three-link structure is composed of a joystick (6), a diagonal stay (7) and a flip frame (8), and one end of the joystick (6) is connected to the chair The side of the seat plate (3) is laterally hinged, and one end of the diagonal stay rod (7) has a sliding head (71), and the sliding head (71) is slidably fixed in the side chute (81) of the flipping frame (8). The flip frame (8) is hinged to the seat plate (3) at its connecting end, and the diagonal stay (7) is also hinged to the joystick (6), so that the three links have the following functions: Push the joystick (6) to rotate, thereby adjusting the flipping of the flipping frame (8), so that the flipping frame (8) can be switched between the states suitable for lying down and sitting upright. 4. The convenient wheelchair according to claim 1, characterized in that: the lifting assembly (9) includes a slider (91), a chassis (92), a telescopic rod (93), a tray (94) and a support rail ( 95), the seat plate (3) is slidably fixed with the support rail (95) through the chute (31) provided at the bottom thereof. 5 . The convenient wheelchair according to claim 3 , characterized in that: the chute ( 81 ) has an obliquely set limit opening ( 810 ) suitable for sliding the sliding head ( 71 ). 6. The convenient wheelchair according to claim 2, characterized in that: the lifting armrest (4) realizes lifting through a rack and pinion combination; the rack and pinion combination includes a fixed connection with the lifting armrest (4). A vertically arranged lifting rack (41), a lifting gear (42) and a lifting motor (43) cooperating with the lifting rack (41), the lifting motor (42) has a bidirectional output shaft, and the bidirectional The lifting gear (42) is arranged on the output shaft. 7. The convenient wheelchair according to claim 3, characterized in that: the steering armrest (5) is connected to the joystick (6) through a rotating shaft and a limit pin (51).

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