Hand steering wheel device for handicapped people

Abstract

The application discloses a hand driving steering wheel device for the disabled, which comprises a steering wheel, an adjusting seat arranged on the steering wheel, an adjusting assembly, an adjusting shaft, a speed adjusting controller and a linkage mechanism, wherein the adjusting shaft is rotatably arranged on the adjusting seat, one end of the adjusting shaft is formed as a rotating end, and the other end of the adjusting shaft is formed as a linkage end; the rotating end is rotatably connected to the speed adjusting controller; the linkage mechanism comprises a first connecting arm and a second connecting arm, the middle part of the first connecting arm is connected to the linkage end; one end of the first connecting arm is formed as a first pressure receiving end, and the other end of the first connecting arm is formed as a first connecting end; one end of the second connecting arm is formed as a second connecting end, and the other end of the second connecting arm is formed as a second pressure receiving end; the middle part of the second connecting arm is rotatably arranged on the adjusting seat through a rotating shaft; and the first connecting end and the second connecting end are movably hinged. The application can realize multi-point speed adjustment through the adjusting assembly.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of steering wheel, in particular to a hand driving steering wheel device for disabled people. BACKGROUND

[0002] At present, a wheelchair is a chair equipped with wheels to help replace walking, and is usually used as an important mobile tool for home rehabilitation, circulation transportation, medical treatment and outdoor activities of wounded, sick and disabled people. In modern society, the wheelchair has become a convenient auxiliary traffic tool for the disabled people with difficulty in moving, and with the development of wheelchair technology, electric wheelchairs are also becoming more and more popular.

[0003] The electric wheelchair generally comprises a car head and a car seat, wherein the car head is connected with a car head wheel, the car seat is connected with a car seat rear wheel, and the rotation of the car head wheel is driven by a motor to save time and effort. When the disabled people use it, the speed of the car head wheel needs to be controlled. The existing electric speed regulation mode is to rotate the speed control, that is, a speed regulating handle is arranged on the steering wheel. The speed regulating handle changes the magnetic field strength around the Hall sensor assembly in the rotation process, and then sends a sensing signal. The speed of the motor is controlled by the controller, so as to realize speed adjustment.

[0004] However, the existing speed regulation mode can only be adjusted on one side, which is relatively inconvenient for the disabled people to use. SUMMARY

[0005] In order to overcome the defects of the prior art, the purpose of the present application is to provide a hand driving steering wheel device for disabled people, which can realize multi-point speed regulation through an adjusting assembly.

[0006] The purpose of the present application is realized by adopting the following technical solutions:

[0007] The hand driving steering wheel device for disabled people comprises,

[0008] A steering wheel is provided with an adjusting seat on the steering wheel.

[0009] The adjusting assembly comprises an adjusting shaft, a speed controller and a linkage mechanism, the adjusting shaft is rotatably installed on the adjusting base, one end of the adjusting shaft is formed as a rotating end, the other end of the adjusting shaft is formed as a linkage end; the speed controller is installed on the adjusting base; the rotating end is rotatably connected to the speed controller; the speed controller is used to send a speed control signal when the rotating end rotates; the linkage mechanism comprises a first connecting arm and a second connecting arm, the middle part of the first connecting arm is connected to the linkage end; one end of the first connecting arm is formed as a first pressure receiving end, the other end of the first connecting arm is formed as a first connecting end; one end of the second connecting arm is formed as a second connecting end, the other end of the second connecting arm is formed as a second pressure receiving end; the middle part of the second connecting arm is rotatably installed on the adjusting base through a rotating shaft; the first connecting end and the second connecting end are movably hinged; the first pressure receiving end is used to drive the first connecting arm to rotate when force is received; the second pressure receiving end is used to drive the second connecting arm to rotate when force is received.

[0010] Further, the first connecting end is provided with a ball head; the second connecting end is provided with a ball head groove, and the ball head is movably hinged in the ball head groove.

[0011] Further, the outer diameter of the first connecting end gradually decreases from the end close to the ball head groove to the end away from the ball head groove.

[0012] Further, a penetrating groove is arranged on the first connecting arm, and the linkage end penetrates into the penetrating groove; a limiting part is arranged on the inner wall of the penetrating groove, and the limiting part is used to abut against the linkage end after the linkage end penetrates into the penetrating groove.

[0013] Further, an annular groove is arranged on the outer surface of the linkage end; the limiting part is a limiting shaft; the limiting shaft is used to be clamped into the annular groove after the linkage end penetrates into the penetrating groove.

[0014] Further, an elastic component is arranged on the linkage end, and the elastic component is used to be in a stretched state when the linkage end rotates; the elastic component is used to provide an elastic stress for driving the linkage end to reset.

[0015] Further, the elastic component is arranged on the rotating shaft, and the elastic component is used to provide an elastic stress for driving the rotating shaft to reset.

[0016] Further, the adjusting assembly further comprises an adjusting ring; the adjusting ring is annularly arranged below the steering wheel; the first pressure receiving end and the second pressure receiving end are respectively connected to the two sides of the adjusting ring.

[0017] Further, the two sides of the adjusting ring are provided with third connecting arms, one side of which is hinged to the first pressure receiving end, and the other side of which is hinged to the second pressure receiving end.

[0018] Further, the speed adjusting controller is an encoder or a Hall sensor.

[0019] Compared with the prior art, the present application has the following advantages: when the speed is adjusted, the first connecting arm can swing up and down by applying force to the first force receiving end with hands, and the adjusting shaft is driven to rotate due to the connection between the first connecting arm and the linkage end of the adjusting shaft, so that the speed adjusting controller sends a speed adjusting signal to realize speed adjustment. In addition, the second connecting arm can also swing up and down around the rotating shaft by applying force to the second force receiving end with hands, and the first connecting arm can swing up and down by the movable hinging between the second connecting end and the first connecting end of the first connecting arm, so that the linkage end of the adjusting shaft is also driven to rotate to realize speed adjustment. In this way, the first connecting arm is driven to link by the up and down swinging of the first force receiving end and the second force receiving end, and speed adjustment is realized by multi-point force application, which is convenient to operate.

[0020] Of course, since the first connecting arm and the second connecting arm are movably hinged through the first connecting end and the second connecting end, the force applied to the first force receiving end and the second force receiving end can balance the force applied to the first connecting arm, and the speed adjustment is balanced. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 is a structural schematic view of the present application;

[0022] Figure 2 is another perspective structural schematic view of the present application;

[0023] Figure 3 is a sectional view of the present application;

[0024] Figure 4 is another perspective sectional view of the present application;

[0025] Figure 5 is a local structural schematic view of the present application.

[0026] In the figure: 10, steering wheel; 11, adjusting seat; 12, connecting rod; 22, first connecting arm; 221, ball head; 222, first connecting end; 23, second connecting arm; 231, ball head groove; 24, third connecting arm; 25, adjusting ring; 26, rotating shaft; 27, limiting part; 28, elastic part; 30, speed adjusting controller. DETAILED DESCRIPTION

[0027] In the following, the present application will be further described in combination with the drawings and specific embodiments:

[0028] In the description of the present application, it should be noted that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings based on the orientation or positional relationship, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application.

[0029] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the present application belongs. The terminology used in the description of the present application herein is only for the purpose of describing specific embodiments and is not intended to limit the present application.

[0030] As shown in Figure 1 The device for the disabled to steer the steering wheel 10 includes the steering wheel 10 and an adjusting assembly, and the adjusting seat 11 is arranged on the steering wheel 10. The adjusting assembly includes an adjusting shaft, a speed adjusting controller 30 and a linkage mechanism. The adjusting shaft is rotatably arranged on the adjusting seat 11, one end of the adjusting shaft is formed as a rotating end, and the other end of the adjusting shaft is formed as a linkage end. The speed adjusting controller 30 is arranged on the adjusting seat 11, and the rotating end is rotatably connected to the speed adjusting controller 30. The speed adjusting controller 30 is used to send a speed adjusting signal when the rotating end rotates.

[0031] In addition, the linkage mechanism includes a first connecting arm 22 and a second connecting arm 23. The middle part of the first connecting arm 22 is connected to the linkage end, one end of the first connecting arm 22 is formed as a first pressure receiving end, and the other end of the first connecting arm 22 is formed as a first connecting end 222. One end of the second connecting arm 23 is formed as a second connecting end, and the other end of the second connecting arm 23 is formed as a second pressure receiving end. The middle part of the second connecting arm 23 is rotatably arranged on the adjusting seat 11 through a rotating shaft 26. The first connecting end 222 of the first connecting arm 22 and the second connecting end of the second connecting arm 23 are movably hinged. When the first pressure receiving end is forced, the first connecting arm 22 is driven to rotate, and the second pressure receiving end can drive the second connecting arm 23 to rotate when forced.

[0032] On the basis of the above structure, when the device for the disabled to steer the steering wheel 10 is used, the steering wheel 10 can be connected to the front of the wheelchair through the connecting rod 12 during assembly, the speed controller 30 on the steering wheel 10 can be electrically connected to the motor on the front of the wheelchair, and the speed controller 30 can be realized by the Hall sensor or the encoder in the prior art. Taking the Hall sensor as an example, the rotating end of the adjusting shaft can be rotated inside the shell of the speed controller 30, the magnetic field of the Hall sensor is changed when the adjusting shaft is rotated, a signal is transmitted to the motor, and the motor can be speed-regulated after receiving the speed-regulation signal.

[0033] Specifically, when the speed is regulated, the first connecting arm 22 can swing up and down when the hand exerts force on the first force receiving end, the adjusting shaft can be rotated due to the connection between the first connecting arm 22 and the linkage end of the adjusting shaft, and then the speed controller 30 sends a speed-regulation signal to realize speed regulation. In addition, the second connecting arm 23 can also swing up and down around the rotating shaft 26 when the hand exerts force on the second force receiving end, and the second connecting arm 23 is movably hinged to the first connecting end 222 of the first connecting arm 22 through the second connecting end, so that the first connecting arm 22 can be swung up and down, and the linkage end of the adjusting shaft can also be rotated to realize speed regulation. In this way, the first connecting arm 22 can be linked by swinging up and down of the first force receiving end and the second force receiving end, and speed regulation can be realized by multi-point force exertion, which is convenient to operate.

[0034] Of course, since the first connecting arm 22 and the second connecting arm 23 are movably hinged through the first connecting end 222 and the second connecting end, the force exerted on the first force receiving end and the second force receiving end can balance the force exerted on the first connecting arm 22 and balance the speed regulation.

[0035] Further, the first connecting end 222 is provided with a ball head 221, and the second connecting end is provided with a ball head groove 231, the ball head 221 on the first connecting arm 22 is movably hinged in the ball head groove 231 on the second connecting arm 23, so that when the second force receiving end is exerted, the second connecting arm 23 can rotate around the rotating shaft 26 to drive the second connecting end to rotate, and since the second connecting end and the first connecting end 222 are movably hinged through the ball head groove 231 and the ball head 221, the second connecting end can pull the first connecting end 222 during rotation, and the ball head 221 rolls in the ball head groove 231 during rotation to avoid jamming during linkage.

[0036] Of course, the first connecting end 222 is provided with a connecting shaft, and the second connecting end is provided with a connecting hole, and the connecting shaft can be slidably hinged in the connecting hole to realize the above-mentioned movable hinging.

[0037] More specifically, the outer diameter of the first connecting end 222 gradually decreases from the end close to the ball head groove 231 to the end away from the ball head groove 231. Due to the movable hinging of the ball head 221 and the ball head groove 231, if the outer diameter of the first connecting end 222 is the same as the outer diameter of the ball head 221, the ball head 221 is likely to collide with the ball head groove 231 during rolling, and the ball head 221 is likely to be stuck. Therefore, in the embodiment, the end with smaller outer diameter is connected with the ball head 221, and the ball head 221 is formed to avoid collision, so as to reduce the possibility of being stuck.

[0038] Further, the first connecting arm 22 can be provided with a penetrating groove, and the linkage end is penetrated into the penetrating groove. When the connecting end of the adjusting shaft is assembled with the first connecting arm 22, a limiting part 27 can be arranged on the inner wall of the penetrating groove. When the linkage end is penetrated into the penetrating groove, the limiting part 27 abuts against the linkage end. In this way, when the first connecting arm 22 is connected with the adjusting shaft, the first connecting arm 22 can be penetrated into the penetrating groove, and the limiting part 27 can abut against the linkage end in the penetrating groove, so as to realize connection. When the first force receiving end of the first connecting arm 22 is stressed, the first connecting arm 22 swings up and down, and the limiting part 27 on the first connecting arm 22 drives the linkage end to rotate.

[0039] More specifically, the outer surface of the linkage end is provided with an annular groove, and the limiting part 27 is a limiting shaft. When the linkage end of the adjusting shaft is penetrated into the penetrating groove, the limiting shaft can be penetrated into the penetrating groove and clamped into the annular groove, so as to realize connection. At the same time, the adjusting shaft can be driven to rotate when the first connecting arm 22 rotates.

[0040] The limiting shaft and the annular groove are clamped to realize the connection between the first connecting arm 22 and the linkage end, which is convenient for assembly. The annular groove is selected, so that the assembly is not required to be aligned, and the assembly difficulty is reduced.

[0041] Further, the linkage end can be provided with an elastic part 28. The elastic part 28 can be in a stretched state when the linkage end rotates. The elastic part 28 can provide an elastic stress, which drives the linkage end to reset.

[0042] Specifically, when the speed is adjusted, force can be applied to the first pressure receiving end or the second pressure receiving end, so as to drive or link the first connecting arm 22 to rotate up and down. The adjusting shaft drives the linkage end to rotate, and the elastic part 28 is stretched in the corresponding rotating process. When the speed is not required to be adjusted, the first pressure receiving end or the second pressure receiving end can be released, the elastic part 28 is reset, the first connecting arm 22 is reset, or the second connecting arm 23 is reset.

[0043] Similarly, the elastic component 28 can also be arranged on the rotating shaft 26, and the elastic component 28 can also provide an elastic stress, and the elastic component 28 on the rotating shaft 26 can drive the rotating shaft 26 to reset. Thus, when the first pressure receiving end or the second pressure receiving end is stressed, the first connecting arm 22 and the second connecting arm 23 can be driven to rotate, and the elastic component 28 on the linkage end and the rotating shaft 26 can be stretched. When the first pressure receiving end or the second pressure receiving end is released, the elastic component 28 resets, and the first connecting arm 22 and the second connecting arm 23 are reset, and the linkage end and the rotating shaft 26 are reset synchronously and quickly, and the elastic component 28 is arranged on the linkage end and the rotating shaft 26, so that the resetting process is stable and the stress is balanced.

[0044] Further, the adjusting assembly in the embodiment further comprises an adjusting ring 25 arranged in a ring shape below the steering wheel 10, and the first pressure receiving end and the second pressure receiving end are connected to two sides of the adjusting ring 25. Thus, when force is applied, a hand holds the steering wheel 10 and then applies force to different positions of the adjusting ring 25. Since the adjusting ring 25 is connected to the first pressure receiving end and the second pressure receiving end, different positions of the adjusting ring 25 are stressed, and the first pressure receiving end and the second pressure receiving end are driven to be stressed, and then the first connecting arm 22 and the second connecting arm 23 are swung, and then the adjusting shaft is rotated.

[0045] Of course, since the first connecting end 222 of the first connecting arm 22 and the second connecting end of the second connecting arm 23 are movably hinged, when the adjusting ring 25 is stressed, the force is transmitted through the first pressure receiving end or the second pressure receiving end to be linked and adjusted in a movable hinge manner, and the stress is balanced.

[0046] Further, the third connecting arm 24 can be arranged on both sides of the adjusting ring 25, one side of the third connecting arm 24 is hinged to the first pressure receiving end, and the other side of the third connecting arm 24 is hinged to the second pressure receiving end. Thus, when the adjusting ring 25 is stressed, the third connecting arm 24 on the corresponding position pulls the first connecting arm 22 and the second connecting arm 23 connected thereto. Since the third connecting arm 24 is hinged to the first pressure receiving end and the second pressure receiving end, the third connecting arm 24 is more flexible during pulling and reduces the occurrence of jamming.

[0047] For those skilled in the art, various corresponding changes and modifications can be made to the above-described technical solutions and concepts, and all these changes and modifications should belong to the protection scope of the claims of the present application.

Claims

1. A steering wheel device for the handicapped, characterized by, The utility model relates to a steering wheel, which comprises a steering wheel, an adjusting seat arranged on the steering wheel, an adjusting assembly, a speed controller and a linkage mechanism. The adjusting assembly comprises an adjusting shaft, a speed controller and a linkage mechanism. The adjusting shaft is rotatably arranged on the adjusting seat.

2. The hand steering wheel device for handicapped persons according to claim 1, wherein One end of the adjusting shaft is formed as a rotating end, and the other end of the adjusting shaft is formed as a linkage end.

3. The device for steering a vehicle's handlebar by a handicapped person according to claim 2, wherein The speed controller is arranged on the adjusting seat.

4. The hand steering wheel device for handicapped persons according to claim 1, wherein The rotating end is rotatably connected to the speed controller.

5. The device for driving a steering wheel with hands of handicapped persons according to claim 4, wherein The speed controller is used to send a speed control signal when the rotating end rotates.

6. The device for handicapped persons to drive a steering wheel by hands according to claim 1, wherein, The linkage mechanism comprises a first connecting arm and a second connecting arm.

7. The device for driving a steering wheel with hands of handicapped persons according to claim 6, wherein The middle part of the first connecting arm is connected to the linkage end.

8. The hand steering wheel device for handicapped persons according to claim 1, wherein One end of the first connecting arm is formed as a first pressure receiving end, and the other end of the first connecting arm is formed as a first connecting end.

9. The hand steering wheel device for handicapped persons according to claim 1, wherein One end of the second connecting arm is formed as a second connecting end, and the other end of the second connecting arm is formed as a second pressure receiving end. The middle part of the second connecting arm is rotatably arranged on the adjusting seat through a rotating shaft. The first connecting end and the second connecting end are movably hinged. The first pressure receiving end is used to drive the first connecting arm to rotate when a force is applied. The second pressure receiving end is used to drive the second connecting arm to rotate when a force is applied. The adjusting assembly further comprises an adjusting ring. The adjusting ring is annularly arranged below the steering wheel. The first pressure receiving end and the second pressure receiving end are respectively connected to the two sides of the adjusting ring. The first connecting end is provided with a ball head. The second connecting end is provided with a ball head groove. The outer diameter of the first connecting end gradually decreases from the end close to the ball head groove to the end away from the ball head groove. The first connecting arm is provided with a penetrating groove. The inner wall of the penetrating groove is provided with a limiting part. The limiting part is used to abut against the linkage end after the linkage end penetrates into the penetrating groove. The limiting part is a limiting shaft. The limiting shaft is used to be clamped into the annular groove after the linkage end penetrates into the penetrating groove. The linkage end is provided with an elastic component. The elastic component is used to be in a stretched state when the linkage end rotates. The elastic component is used to provide an elastic stress for driving the linkage end to return to the original position. The rotating shaft is provided with the elastic component. The elastic component is used to provide an elastic stress for driving the rotating shaft to return to the original position. The two sides of the adjusting ring are respectively provided with a third connecting arm. One side of the third connecting arm is hinged to the first pressure receiving end. The other side of the third connecting arm is hinged to the second pressure receiving end. The speed controller is an encoder or a Hall sensor.

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