CN103315861B - Electric wheelchair with adjustable angle - Google Patents

Abstract

The invention discloses an electric wheelchair with an adjustable angle, which comprises a wheelchair frame, a cushion, a backrest and a pedal plate, wherein the cushion and the pedal plate are connected in an integrated structure, a first electric push rod is arranged on the wheelchair frame, an output rod of the first electric push rod is hinged between the cushion and the pedal plate, a second electric push rod is arranged at the bottom of the cushion, the output rod of the second electric push rod is connected with the backrest, a driving control circuit is further arranged on the wheelchair frame and is connected with a motor to drive the first electric push rod and the second electric push rod and a battery pack for supplying power, a control console is arranged on a handrail of the cushion and is connected with the driving control circuit, so that a patient can stand better and more conveniently without the assistance of other people, various auxiliary functions are added, the.

Description

Electric wheelchair with adjustable angle

technical field

The invention relates to an electric wheelchair, in particular to an electric wheelchair with adjustable angle.

Background technique

Wheelchairs are an important tool for people with disabilities to use in daily life, not only as a means of transportation, but more importantly, they can participate in more social activities with the help of wheelchairs. At present, there are many kinds of wheelchairs for the disabled on the market, most of which are added with multiple functions on the basis of ordinary wheelchairs. Bearing too much body pressure in the same sitting posture will increase the patient's discomfort. And the lifting function of most existing wheelchairs is only to lift the cushion, which will cause inconvenience for some patients who need auxiliary standing or leg strength deficiency.

Contents of the invention

In order to solve the above-mentioned technical problems, the present invention provides an electric wheelchair with adjustable angle. By adjusting and changing the angles of the seat cushion, backrest and footrest, it is more conducive to assisting the patient to stand, and the operation is simple and practical.

In order to achieve the above object, the technical solution adopted in the present invention is:

An electric wheelchair with adjustable angle includes a wheelchair frame, a seat cushion, a backrest and a pedal, the seat cushion and the foot pedal are connected by an integrated structure, the wheelchair frame is provided with a first electric push rod, and its output rod Hinged between the seat cushion and the pedals, the bottom of the seat cushion is provided with a second electric push rod and its output rod is connected to the backrest, and the wheelchair frame is also provided with a drive control circuit connected to the motor to drive the first electric push rod and the second electric push rod. Two electric push rods and a battery pack for power supply, and the console is connected to the drive control circuit on the armrest of the cushion.

As a further improvement of the above technical solution, the drive control circuit also includes a speed regulation control circuit, a front and rear gear switching circuit, a direction control circuit and a brake control circuit, which are respectively connected to wheel motors for driving the wheelchair to move and steer.

As a further improvement of the above technical solution, a spring is provided at the contact support point between the bottom of the cushion and the wheelchair frame to buffer the collision force and make the patient ride more comfortable.

As a further improvement of the above technical solution, the output end of the battery pack is provided with a power-off protection circuit connected to the drive control circuit.

As a further improvement of the above technical solution, the console is provided with a lock device with a switch button connected to the wheelchair frame.

As a further improvement of the above technical solution, rearview mirrors and direction indicators are also provided on the console.

As a further improvement of the above technical solution, the first electric push rod and the second electric push rod are worm gears with large load-bearing capacity, self-locking function, and controllable positioning at any point.

As a further improvement of the above technical solution, the rear end of the wheelchair frame is provided with a load-carrying platform.

Beneficial effects of the present invention: the present invention adopts the electric wheelchair of the above-mentioned technical scheme, pushes the seat cushion and the foot pedal to rise and fall to change the angle through the electric push rod, and at the same time, the backrest also follows the seat cushion to adjust the angle, which can help the patient to It is better and more convenient to stand, and adds a variety of auxiliary functions, which is easy to operate and greatly meets the needs of users.

Description of drawings

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

Figure 1 is a side view of the present invention.

Fig. 2 is a working schematic diagram of raising the seat cushion and the footboard in Fig. 1 .

detailed description

With reference to Fig. 1 and Fig. 2, a kind of angle-adjustable electric wheelchair provided by the present invention can assist patients to stand up more conveniently, and its structure comprises wheelchair frame 1, cushion 2, backrest 4 and pedal 3, described The seat cushion 2 and the foot pedal 3 are connected by an integrated structure. The wheelchair frame 1 is provided with a first electric push rod 5, and its output rod is hinged between the seat cushion 2 and the foot pedal 3 to control the first electric push rod 5 to work. At the same time, the seat cushion 2 and the foot pedal 3 are lifted together to change the angle, and the foot pedal 3 is used to assist the patient to stand straight on the ground through the change of the angle of the foot pedal 3 . The bottom of the seat cushion 2 is provided with a second electric push rod 6 and its output rod is connected to the backrest 4. The inclination angle of the backrest 4 is changed by the second electric push rod 6. Support the patient's back well to assist its body to stand upright, and the backrest 4 can also independently adjust the angle to change the patient's sitting posture, allowing the patient to lie down.

In the above technical solution, the wheelchair frame 1 is also provided with a drive control circuit and a battery pack for power supply, and the output end of the battery pack is provided with a power-off protection circuit connected to the drive control circuit for leakage protection. The drive control circuit connects the motor to drive the first electric push rod 5 and the second electric push rod 6. The first electric push rod 5 and the second electric push rod 6 are worm gears with large load-bearing capacity, self-locking function, and can control Position at any point. Preferably, the drive control circuit also includes a speed regulation control circuit, a front and rear gear switching circuit, a direction control circuit and a brake control circuit, which are respectively connected to wheel motors for driving the wheelchair to move and turn, and the wheel motors use one-way bearings The structure of the motor drives the rear wheel to turn more quickly and the structure is more stable.

In order to make the operation more convenient, the armrest of the seat cushion 2 is provided with a console connected to the drive control circuit, and the console is provided with a speed control handle, a gear switch button, a direction control rocker and a brake control switch respectively connected to the speed control circuit , the front and rear gear switching circuit, the direction control circuit and the brake control circuit, the console is also provided with seat cushion 2 lift buttons, backrest 4 adjustment buttons and a switch button, and the switch button is connected to the locking device provided by the wheelchair frame 1 to realize The car is locked with one button, and the console is also provided with a rearview mirror and a direction indicator light, and the direction indicator light is connected to a direction control circuit to output an indication direction.

Preferably, a spring 7 is provided at the contact support point between the bottom of the seat cushion 2 and the wheelchair frame 1 to buffer the collision force between the two, so that the patient can ride more comfortably.

The improvement of the above-mentioned technical solution is that the tail end of the wheelchair frame 1 is provided with a load-bearing platform 8, which is convenient for carrying articles. At the same time, because the load-bearing platform 8 and the wheel motor of the wheelchair have a certain weight, the patient can stand on the pedals. 3 When it is on, it can balance the force situation of the front and rear parts of the wheelchair.

The present invention adopts the electric wheelchair of the above-mentioned technical scheme, pushes the seat cushion 2 and the foot pedal 3 together to change the angle through the electric push rod, and at the same time the backrest 4 also follows the seat cushion 2 to adjust the angle, so that the patient can be assisted better without the help of others. , It is more convenient to stand, and a variety of auxiliary functions are added, which is easy to operate and greatly meets the needs of users.

The above descriptions are only preferred embodiments of the present invention, and the present invention is not limited to the above-mentioned embodiments, as long as they achieve the technical effects of the present invention by the same means, they should all belong to the protection scope of the present invention.

Claims (8)

1. An angle-adjustable electric wheelchair, comprising a wheelchair frame (1), a seat cushion (2), a backrest (4) and a footrest (3), characterized in that: the seat cushion (2) and footrest (3) It is connected by an integrated structure. The wheelchair frame (1) is provided with a first electric push rod (5), and its output rod is hinged between the seat cushion (2) and the pedal (3). When the rod (5) is working, the cushion (2) and the pedal (3) rise and fall to change the angle, the bottom of the cushion (2) is provided with a second electric push rod (6) and its output rod is connected to the backrest (4) , the wheelchair frame (1) is also provided with a drive control circuit to connect the motor to drive the first electric push rod (5) and the second electric push rod (6) and a battery pack for power supply, the seat cushion (2) A console is provided on the armrest to connect to a drive control circuit. 2. The angle-adjustable electric wheelchair according to claim 1, characterized in that: the drive control circuit also includes a speed regulation control circuit, a front and rear gear switching circuit, a direction control circuit and a brake control circuit, and respectively Connect the wheel motors used to drive the wheelchair to move and steer. 3. The angle-adjustable electric wheelchair according to claim 1, characterized in that: a spring (7) is provided at the contact support point between the bottom of the seat cushion (2) and the wheelchair frame (1). 4. The electric wheelchair with adjustable angle according to claim 1, characterized in that: the output end of the battery pack is provided with a power-off protection circuit connected to the drive control circuit. 5 . The electric wheelchair with adjustable angle according to claim 1 , characterized in that: the console is provided with a switch button connected to the wheelchair frame ( 1 ) and provided with a locking device. 6 . 6. The angle-adjustable electric wheelchair according to claim 1 or 5, characterized in that: the console is also provided with rearview mirrors and direction indicators. 7. The electric wheelchair with adjustable angle according to claim 1, characterized in that: the first electric push rod (5) and the second electric push rod (6) are worm gears. 8. An electric wheelchair with adjustable angle according to claim 1, characterized in that: the tail end of the wheelchair frame (1) is provided with a load-carrying platform (8).