CN102846440A - Multi-functional standing and sitting device for walker wheelchair - Google Patents

Abstract

The invention discloses a multifunctional walking aid wheelchair sitting device. By setting a vertical sitting mechanism and a horizontal lifting mechanism on the electric wheelchair, the vertical lifting mechanism is used to adjust the lifting of the seat, and the horizontal lifting mechanism is used It is used to adjust the horizontal movement of the seat, and the vertical sitting mechanism and the horizontal lifting mechanism run synchronously. When the vertical lifting mechanism drives the seat to rise, the horizontal lifting mechanism drives the seat forward synchronously, continuously Change the center of gravity of the human body, and gradually push the user to stand up, and vice versa, which helps the user to sit up and exercise by himself, reduces the difficulty of the user's sitting up, and makes the electric wheelchair more humane.

Description

A kind of multi-functional walking-assisting wheelchair sitting-up device

technical field

The invention belongs to the technical field of electric wheelchairs, in particular to a multifunctional walking aid wheelchair sitting device.

Background technique

With the aging of China's population, there are more and more elderly people with limited mobility. Most elderly people have not completely lost their walking ability and can walk for a short time, but they have great difficulty in standing up. At present, the development of electric wheelchairs has been relatively mature, and the elderly can use wheelchairs instead of feet to achieve the purpose of walking. However, most electric walking wheelchairs do not have the function of assisting sitting up, which makes it difficult for the elderly to get up and sit up when they want to walk independently from the wheelchair.

At present, the relevant patents at home and abroad mainly include a utility model named "Electric Wheelchair with Liftable Seat" (patent application number 03246351.0). In the process of sitting, the center of gravity of the human body is also constantly changing, and the center of gravity of the seat in this patent mainly changes in the vertical direction, and there is no movement in the horizontal direction. Therefore, this patent cannot be used according to the center of gravity of the human body. The patient reaches a standing position.

Moreover, when this patent is in use, the lifting mechanism drives the seat to move upwards, and the human body also moves upwards accordingly. If the user does not stretch out the feet in time to touch the ground, there will be problems such as the user's feet being separated from the ground. Make it difficult for users to stand.

Therefore, it is necessary to propose a wheelchair sitting mechanism that can not only realize the lifting of the electric wheelchair seat but also move the seat horizontally according to the change of the center of gravity of the human body, so as to solve the problem of sitting up of the wheelchair in the prior art and help the user sit ups.

Contents of the invention

In view of this, the present invention provides a multifunctional walking-assisting wheelchair sitting device that can not only adjust the lifting of the wheelchair seat, but also move it horizontally, so as to realize the continuous changing position of the seat according to the change of the center of gravity of the human body, and help The purpose of doing sit-ups.

According to the purpose of the present invention, a multifunctional walking aid wheelchair sitting device is applied to an electric wheelchair provided with a car body, a driving wheel, a driving motor, a universal wheel and a base. The lower end of the car body and the vertical lift-up mechanism that can be lifted vertically, and the horizontal lift-up mechanism that is fixed at the front end of the vertical lift-up mechanism and can drive the horizontal movement of the base, the vertical lift-up mechanism and the The horizontal lifting mechanism operates synchronously.

Preferably, the vertical standing mechanism is a vertical cylinder or an electric push rod.

Preferably, the horizontal sitting mechanism includes a power plate and a horizontal cylinder disposed on the power plate, and the base is fixedly disposed on the front end of the horizontal cylinder.

Preferably, the horizontal stand-up mechanism includes a power plate and a horizontal slide rail arranged on the power plate, and a first slider capable of moving along the horizontal slide rail is arranged on the base, and the horizontal lift-up mechanism The mechanism also includes a driving steel rope for driving the base to move along the transverse slide rail, one end of the driving steel rope is connected with the bottom of the vehicle body, and the other end is connected with the first slider, and the power The board is provided with at least two pulleys for the driving steel rope to be wound around.

Preferably, the sitting device further includes a resetting mechanism for resetting the base in the horizontal direction.

Preferably, the reset mechanism is a reset steel rope, one end of the reset steel rope is connected to the upper part of the vehicle body, and the other end is connected to the base, and at least one is provided on the power plate for the Reset the pulley around the wire rope.

Preferably, the sitting-up device further includes a guiding mechanism for guiding the vertical sitting-up mechanism, and the guiding mechanism is fixedly arranged on the vehicle body.

Preferably, the guide mechanism is at least one vertical slide rail, and the horizontal sitting mechanism is provided with a second slider capable of sliding up and down along the vertical slide rail.

Preferably, a brake element is arranged on the second slider.

Preferably, a brake element is arranged on the first slider.

Compared with the prior art, the advantage of the multifunctional walking aid wheelchair device of the present invention is that by setting the vertical sitting mechanism and the horizontal lifting mechanism on the electric wheelchair, the vertical lifting mechanism is used to adjust the seat The lifting and lowering of the chair, the horizontal lifting mechanism is used to adjust the horizontal movement of the seat, and the vertical lifting mechanism and the horizontal lifting mechanism run synchronously. When the vertical lifting mechanism drives the seat to rise, the horizontal lifting mechanism synchronizes Drive the seat to move forward, constantly change the center of gravity of the human body, and gradually push the user to stand up, and vice versa, which helps the user to sit up and exercise by himself, reduces the difficulty of the user's sitting up, and makes the electric wheelchair more humane.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only These are some embodiments of the present invention. Those skilled in the art can also obtain other drawings based on these drawings without creative work.

Fig. 1 is a perspective view of a sitting device for a multifunctional walking aid wheelchair disclosed by the present invention.

Fig. 2 is a rear view of the sitting device for a multifunctional walking aid wheelchair disclosed by the present invention.

Fig. 3 is a right side view of the sitting-up device of the multifunctional walking aid wheelchair disclosed by the present invention in its original position.

Fig. 4 is a right side view of the multifunctional walking aid wheelchair standing device disclosed by the present invention when it is raised.

The names of the corresponding parts represented by numbers or letters in the figure:

1. Car body 2. Driving motor 3. Driving wheel 4. Universal wheel 5. Base 6. Vertical lifting mechanism 7. Horizontal lifting mechanism 8. Reset mechanism

61. Electric push rod 62, vertical slide rail 63, second slider

71, power plate 72, transverse slide rail 73, first slider 74, driving steel rope 75, pulley

Detailed ways

The electric wheelchair lifting device in the prior art can only lift and adjust the seat of the wheelchair, but cannot realize the horizontal movement of the seat, resulting in the inability of the seat to adjust the position according to the change of the center of gravity of the human body for lifting, and there are many deficiencies in use.

Aiming at the deficiencies in the prior art, the present invention proposes a multi-functional walking-assisting wheelchair sitting device which can realize seat lifting and can move the seat back and forth. The sit-up mechanism, the vertical sit-up mechanism is used to adjust the lift of the seat, the horizontal sit-up mechanism is used to adjust the horizontal movement of the seat, and the vertical sit-up mechanism and the horizontal sit-up mechanism operate synchronously, and the vertical sit-up mechanism In the process of driving the seat up, the horizontal sitting-up mechanism synchronously drives the seat forward, constantly changing the center of gravity of the human body, and gradually pushing the user to stand up, and vice versa. problem, so as to achieve the purpose of making it easier for users to sit up.

Please refer to Figs. 1-4 together, Fig. 1 is a perspective view of the sitting device for a multifunctional walking aid wheelchair disclosed by the present invention. Fig. 2 is a rear view of the sitting device for a multifunctional walking aid wheelchair disclosed by the present invention. Fig. 3 is a right side view of the sitting-up device of the multifunctional walking aid wheelchair disclosed by the present invention in its original position. Fig. 4 is a right side view of the multifunctional walking aid wheelchair standing device disclosed by the present invention when it is raised. As shown in the figure, the invention discloses a multifunctional walking aid wheelchair sitting device, which is applied to an electric wheelchair provided with a car body 1, a driving wheel 3, a driving motor 2, a universal wheel 4, and a base 5, and the driving motor Drive the driving wheel to run to drive the electric wheelchair to run, realize left and right turning through the differential speed of the driving wheel, and the universal wheel can change in multiple angles according to the steering of the driving wheel.

The device for sitting up comprises a vertical sitting-up mechanism 6 fixedly arranged at the lower end of the vehicle body 1 and capable of vertical lifting, and a horizontally sitting-up mechanism 7 fixedly arranged at the front end of the vertically sitting-up mechanism 6 and capable of driving the base 5 to move horizontally. The sitting mechanism 7 can move up and down with the vertical sitting mechanism 6; the vertical sitting mechanism 6 and the horizontal lifting mechanism 7 run synchronously. The purpose of the lifting motion of the vertical sitting-up mechanism is to drive the horizontal sitting-up mechanism to move up and down, and adjust according to the standing height of the human body, which is suitable for users of different heights. The horizontal sitting-up mechanism is used to push the base 5 of the wheelchair seat to move back and forth, and is adjusted according to the distance of the user standing up and down. The horizontal sit-up mechanism and the vertical sit-up mechanism operate synchronously to realize the horizontal movement of the base while rising, so that the position of the seat changes according to the change of the center of gravity when the human body stands up, which effectively reduces the difficulty of the user when standing, and helps Perform walking exercise while the user is standing.

The technical solutions of the present invention will be clearly and completely described below through specific embodiments. Apparently, the described embodiments are only some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

Example 1

The vertical standing mechanism 6 is an electric push rod 61 . Horizontal sit-up mechanism 7 comprises power plate 71 and the transverse slide rail 72 that is arranged on the power plate 71, and the base 5 is provided with the first slide block 73 that can move along transverse slide rail 72, and horizontal rise mechanism 7 also comprises drive base 5. The driving steel rope 74 that moves along the transverse slide rail 72. One end of the driving steel rope 74 is connected with the bottom of the car body 1, and the other end is connected with the first slider 73. At least two driving steel ropes are arranged on the power plate 71. The pulley 75 that the rope is wound around is shown in Figure 3 and Figure 4. Since one end of the driving steel rope 74 is connected to the first slide block, and the other end is fixed to the car body, the driving steel rope has an inelastic feature, so During the moving process of the first slider, the change amount of the driving steel rope in the vertical direction is consistent with the change amount in the horizontal direction.

The standing device also includes a resetting mechanism 8 for resetting the base 5 in the horizontal direction. The reset mechanism is a reset steel rope. One end of the reset steel rope is connected with the top of the car body 1, and the other end is connected with the base 5. The power plate 71 is provided with at least one pulley 75 for the reset steel rope to wrap around. The return of the base is facilitated by setting a reset mechanism.

The working principle of the present invention is as follows:

The operation of the electric push rod 61 drives the power plate 71 to move vertically. In the process of moving up the power plate 71, the length of the driving steel rope 74 in the vertical direction gradually increases, and the length of the horizontal direction gradually decreases. The change makes the driving steel rope drive the first slider 73 to move forward, ensuring that the base moves forward while rising, so as to help the user stand.

When resetting, the electric push rod 61 drives the power plate 71 to move downwards. Since the power plate is provided with a pulley for the winding of the reset steel rope, as the power plate descends, the length of the reset steel rope in the vertical direction gradually increases, and the length of the reset steel rope in the horizontal direction increases gradually. The length gradually decreases, and as the position of the reset steel rope in the horizontal direction changes, the reset steel rope pulls the first slider and the base on it to return backward. When the base returns to the original position in the horizontal direction, the power plate also Descend to the original position, and complete one lift-up and return.

In addition, in addition to using the reset steel rope for reset, the return spring can also be fixedly connected to the power plate. When the power plate rises and the first slider drives the base forward, the return spring is in a gradually stretched state. When the force in the horizontal direction of the lowered first slider is canceled, the return spring shrinks gradually, and the base gradually returns to its position through the return action of the spring.

Example 2

The rest are the same as in Embodiment 1, the difference is that the vertical drive mechanism can also be a vertical cylinder or a motor and a screw drive, etc., the displacement of the base can be adjusted more accurately through the drive of the motor screw, and the specific method will not be described. limit.

Example 3

The rest are the same as in Embodiment 1, the difference is that the horizontal lifting mechanism includes a power plate and a horizontal cylinder arranged on the power plate, and the base is fixedly arranged on the front end of the horizontal cylinder, and the base is moved horizontally by the promotion of the horizontal cylinder. There is no need to use components such as driving steel ropes and reset steel ropes. The usage of components is reduced, and the structure of the device is simplified. In addition to the horizontal cylinder, motor drive and other methods can also be used at this place, and there is no specific limitation.

Example 4

The rest are the same as in Embodiment 1, the difference is that the sitting up device also includes a guiding mechanism for guiding the vertical sitting mechanism, the guiding mechanism is fixedly arranged on the car body 1, and the guiding mechanism is at least one vertical slide Rail 62, the second slide block 63 that can move along the vertical slide rail 62 is arranged on the horizontal sit-up mechanism 7, by setting the vertical slide rail 62 can play an effective guiding role to the horizontal sit-up mechanism, avoiding due to vertical The deviation and other errors of the sitting-up mechanism during operation lead to problems such as local jamming, causing overload damage to the mechanism, and ensuring the service life of the wheelchair.

Among them, the vertical slide rails can be two symmetrically arranged on both sides of the vertical sitting-up mechanism to realize the balance of both sides during operation. In addition, the number of vertical slide rails can also be 1, 3, 4, 5 or more, the specific number depends on the situation, and there is no limitation here.

Example 5

The rest is the same as that of Embodiment 1, except that the first slider 73 and the second slider 63 are provided with brake elements (not shown). Under certain circumstances, the brake element can be activated immediately, and the base is positioned at this position to avoid personal safety problems caused by the fast forward and fast retreat of the seat.

Among them, a detection device can also be installed on the car body to detect the tension of the driving steel rope and the reset steel rope. Once the tension changes, the signal will be transmitted to the master control system in time to control the brake components in time. Perform locking.

To sum up, the present invention proposes a multi-functional walking aid wheelchair sitting device. By setting a vertical sitting mechanism and a horizontal sitting mechanism on the electric wheelchair, the vertical sitting mechanism is used to adjust the lift of the seat. The horizontal lift mechanism is used to adjust the horizontal movement of the seat, and the vertical lift mechanism and the horizontal lift mechanism operate synchronously. When the vertical lift mechanism drives the seat to rise, the horizontal lift mechanism synchronously drives the seat to move upward. Running forward, constantly changing the center of gravity of the human body, and gradually boosting the user to stand up, and vice versa, it helps the user to sit up for exercise, reduces the difficulty of the user's sitting up, and makes the electric wheelchair more humane.

Moreover, by setting the guide mechanism to effectively guide the vertical sitting mechanism in the vertical direction, the normal operation of the vertical sitting mechanism is guaranteed.

The above description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the present invention will not be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (10)

1. a multifunction walking-aid wheelchair plays the seat device, be arranged on the electric wheelchair that is provided with car body, driving wheel, drive motors, universal wheel and base, it is characterized in that, this rises sits device and comprises and be fixedly installed on described car body lower end and vertical rising that can vertical lift sat mechanism, with be fixedly installed on described vertical and sit mechanism's front end and can drive laterally rising that described base moves horizontally and sit mechanism, sit mechanism and the synchronous operation of described horizontal seat mechanism for described vertical.

2. multifunction walking-aid wheelchair as claimed in claim 1 plays the seat device, it is characterized in that, described vertical seat mechanism is vertical cylinder or electric pushrod.

3. multifunction walking-aid wheelchair as claimed in claim 2 plays the seat device, it is characterized in that, described horizontal seat mechanism comprises power plate and the horizontal air cylinder that is arranged on the described power plate, and described base is fixedly installed on the front end of described horizontal air cylinder.

4. multifunction walking-aid wheelchair as claimed in claim 2 plays the seat device, it is characterized in that, described horizontal seat mechanism comprises power plate and the horizontal slide rail that is arranged on the described power plate, be provided with first slide block that can move along described horizontal slide rail on the described base, sit the driving steel cable that mechanism comprises that also the described base of driving moves along described horizontal slide rail for described horizontal, described driving steel cable one end is connected with the bottom of described car body, the other end is connected with described the first slide block, is provided with the pulley of at least two described driving steel cables of confession solderless wrapped connection on the described power plate.

5. play the seat device such as each described multifunction walking-aid wheelchair of claim 1-4, it is characterized in that, sit device for described and also comprise described base is carried out the resetting-mechanism that horizontal direction resets.

6. multifunction walking-aid wheelchair as claimed in claim 5 plays the seat device, it is characterized in that, described resetting-mechanism is the steel cable that resets, one end of the described steel cable that resets is connected with the top of described car body, the other end is connected with described base, is provided with at least one on the described power plate for the pulley of the described steel cable solderless wrapped connection that resets.

7. multifunction walking-aid wheelchair as claimed in claim 6 plays the seat device, it is characterized in that, sits device for described and comprises that also described guiding mechanism is fixedly installed on the described car body to described vertical the guiding mechanism that seat mechanism leads.

8. multifunction walking-aid wheelchair as claimed in claim 7 plays the seat device, it is characterized in that, described guiding mechanism is at least one vertical slide rail, sits and to be provided with second slide block that can slide up and down along described vertical slide rail in the mechanism for described horizontal.

9. multifunction walking-aid wheelchair as claimed in claim 8 plays the seat device, it is characterized in that, is provided with the band-type brake element on described the second slide block.

10. multifunction walking-aid wheelchair as claimed in claim 4 plays the seat device, it is characterized in that, is provided with the band-type brake element on described the first slide block.

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