Suspension type damping wheel of wheelchair

Abstract

The utility model relates to the field of wheelchairs, in particular to a wheelchair suspension type damping wheel which comprises a wheelchair frame, a backrest fixed to the top of the wheelchair frame, armrests symmetrically fixed to the two ends of the backrest, controllers fixed to the ends of the armrests, and a storage battery fixed to the rear end of the wheelchair frame and electrically connected with the controllers. The rear end of the wheelchair frame is connected with a driving wheel through a first damping assembly, and the front end of the wheelchair frame is connected with a walking wheel through a second damping assembly. The damping wheelchair has the advantages that the traditional mode that wheels and the wheelchair frame are directly installed is changed, the driving wheel is installed on the wheelchair frame in a hanging mode, and the buffering and damping effects of the driving wheel are effectively improved; therefore, the damping requirement can be better met, and popularization is facilitated.

Description

Technical Field

[0001] The utility model relates to the field of wheelchairs, in particular to a suspended shock-absorbing wheel of a wheelchair. Background Art

[0002] A wheelchair is an assistive tool used as an alternative to walking, usually consisting of parts such as a seat, armrests, wheels and a frame. Wheelchairs are widely used in medical care, rehabilitation, and life for people with disabilities, and can help people with limited mobility move and move more conveniently.

[0003] The wheels of common wheelchairs on the market are usually directly connected to the overall frame of the wheelchair. Although a certain buffering function can be achieved by adding springs and other structures, the buffering effect is not good because the wheels are directly installed on the overall frame of the wheelchair, and the shock absorption requirements cannot be met well.

[0004] Therefore, it is necessary to invent a kind of wheelchair suspension type shock-absorbing wheel. Utility Model Content

[0005] To this end, the utility model provides a wheelchair suspension shock-absorbing wheel to solve the problems raised in the above background technology.

[0006] In order to achieve the above-mentioned purpose, the utility model provides the following technical solutions: a wheelchair suspended shock-absorbing wheel, comprising a wheelchair frame, a backrest fixed on the top of the wheelchair frame, armrests symmetrically fixed at both ends of the backrest, a controller fixed at the ends of the armrests, a battery fixed at the rear end of the wheelchair frame, the battery is electrically connected to the controller, the rear end of the wheelchair frame is connected to a driving wheel through a shock-absorbing component one, and the front end of the wheelchair frame is connected to a walking wheel through a shock-absorbing component two.

[0007] Preferably, the shock absorbing assembly comprises two triangular arms, which are symmetrically rotatably connected to both sides of the rear end of the wheelchair frame, upper connecting rods are fixed to the tops of the two triangular arms, and spring shock absorbing arms are rotatably connected to the opposite ends of the two upper connecting rods.

[0008] Preferably, one end of the two upper connecting rods away from the spring damping arm is hinged to the motor frame, and the bottom of the motor frame is hinged to the lower connecting rod.

[0009] Preferably, a bottom beam is fixed to the bottom of the rear end of the wheelchair frame, strip holes are symmetrically provided at both ends of the bottom beam, and the opposite ends of the two lower connecting rods are rotatably connected in the two strip holes through pins.

[0010] Preferably, drive motors are fixed inside the motor frame, the drive motors are electrically connected to the controller, and the two drive wheels are respectively fixed to the output shafts of the two drive motors.

[0011] Preferably, a support arm is fixed to the rear end of the motor frame, and an auxiliary wheel is rotatably connected to the bottom end of the support arm.

[0012] Preferably, the shock absorbing assembly 2 comprises two front connecting arms, and the two front connecting arms are symmetrically fixed on both sides of the front end of the wheelchair frame, the front ends of the front connecting arms are rotatably connected to the second triangular arm, the bottom ends of the second triangular arms are hinged to the front fork arms, the walking wheels are rotatably connected to the bottom ends of the front fork arms, the bottom ends of the front fork arms are also rotatably connected to the second spring shock absorbing arm, and the top ends of the second spring shock absorbing arm are rotatably connected to the second triangular arm.

[0013] The beneficial effects of the utility model are as follows: by using the coordinated use of the wheelchair frame, backrest, armrests, controller, battery, shock-absorbing component 1, driving wheel, shock-absorbing component 2 and walking wheel, the traditional method of directly installing the wheel and the wheelchair frame is changed, and the driving wheel is suspended on the wheelchair frame, which effectively improves the buffering and shock-absorbing effect of the driving wheel, thereby better meeting the shock-absorbing needs and being suitable for promotion. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 A structural stereogram provided for the utility model;

[0015] Figure 2 A side view of the structure provided by the utility model;

[0016] Figure 3 A structural stereogram of a shock absorbing component 1 provided by the utility model;

[0017] Figure 4 A structural stereogram of the shock absorbing component 2 provided by the utility model;

[0018] Figure 5 This is a structural stereogram provided by the utility model.

[0019] In the figure: 100, wheelchair frame; 200, backrest; 300, armrest; 400, controller; 500, battery; 600, driving wheel; 610, triangular arm one; 611, upper connecting rod; 620, spring shock absorber arm one; 630, motor frame; 631, lower connecting rod; 632, pin shaft; 640, bottom beam; 641, strip hole; 650, driving motor; 660, supporting arm; 670, auxiliary wheel; 700, walking wheel; 710, front connecting arm; 720, triangular arm two; 721, front fork arm; 730, spring shock absorber arm two. DETAILED DESCRIPTION

[0020] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0021] Please refer to the attached Figure 1-5 The utility model provides a wheelchair suspension shock-absorbing wheel, comprising a wheelchair frame 100, a backrest 200 is fixed on the top of the wheelchair frame 100, handrails 300 are symmetrically fixed at both ends of the backrest 200, a controller 400 is fixed at the end of the handrail 300, a battery 500 is fixed at the rear end of the wheelchair frame 100, the battery 500 is electrically connected to the controller 400, the rear end of the wheelchair frame 100 is connected to a driving wheel 600 through a shock-absorbing component 1, and the front end of the wheelchair frame 100 is connected to a walking wheel 700 through a shock-absorbing component 2;

[0022] The shock absorbing assembly 1 includes two triangular arms 1610, which are symmetrically connected to the two sides of the rear end of the wheelchair frame 100. The tops of the two triangular arms 1610 are fixed with upper connecting rods 611, that is, the upper connecting rods 611 can rotate with the triangular arms 1610, and the opposite ends of the two upper connecting rods 611 are connected to the spring shock absorbing arms 1620. Therefore, when the two upper connecting rods 611 rotate towards each other due to the vibration force, the spring shock absorbing arms 1620 can be squeezed, thereby effectively buffering the vibration force. The end of the rod 611 away from the spring shock absorber arm 1 620 is hinged with a motor frame 630, and the bottom of the motor frame 630 is hinged with a lower connecting rod 631. A bottom beam 640 is fixed to the bottom of the rear end of the wheelchair frame 100. The two ends of the bottom beam 640 are symmetrically provided with strip holes 641. The opposite ends of the two lower connecting rods 631 are respectively rotatably connected in the two strip holes 641 through pins 632. That is, when the motor frame 630 is shaken by vibration force, the two upper connecting rods 611 can be driven to rotate, thereby squeezing the spring shock absorber arm 1 620;

[0023] The motor frame 630 is internally fixed with a driving motor 650, and the driving motor 650 is electrically connected to the controller 400. The two driving wheels 600 are respectively fixed to the output shafts of the two driving motors 650, that is, the user can control the operation of the driving motor 650 through the controller 400, thereby controlling the rotation of the driving wheel 600 to realize the driving function, and when the road surface vibrates during driving, the motor frame 630 can be driven to shake, that is, the spring shock-absorbing arm 1 620 can be squeezed to achieve the shock-absorbing effect, and the traditional method of directly installing the wheel and the wheelchair frame is changed. By suspending the driving wheel 600 on the wheelchair frame 100, the buffering and shock-absorbing effect of the driving wheel 600 is effectively improved, thereby better meeting the shock-absorbing demand;

[0024] The rear end of the motor frame 630 is fixed with a support arm 660, and the bottom end of the support arm 660 is rotatably connected with an auxiliary wheel 670. Specifically, under the action of the support arm 660 and the auxiliary wheel 670, the stability of the wheelchair during driving can be effectively improved;

[0025] The shock absorbing component 2 includes two front connecting arms 710, and the two front connecting arms 710 are symmetrically fixed on both sides of the front end of the wheelchair frame 100. The front ends of the front connecting arms 710 are rotatably connected to the triangular arms 720. The bottom ends of the triangular arms 720 are hinged with front fork arms 721. The walking wheels 700 are rotatably connected to the bottom ends of the front fork arms 721. The bottom ends of the front fork arms 721 are also rotatably connected to the spring shock absorbing arms 730. The top ends of the spring shock absorbing arms 730 are rotatably connected to the triangular arms 720. Specifically, when the driving wheel 600 rotates, the walking wheels 700 can move with the walking and can rotate, thereby facilitating the steering of the wheelchair. In the process of driving, when the walking wheels 700 are shaken by the vibration force, the spring shock absorbing arms 730 can be squeezed, thereby realizing the shock absorbing and buffering function.

[0026] The use process of the utility model is as follows: during use, the user can control the operation of the driving motor 650 through the controller 400, thereby controlling the rotation of the driving wheel 600 to realize the driving function, and when the road surface vibrates during driving, the motor frame 630 can be driven to shake. When the motor frame 630 is shaken by the vibration force, the two upper connecting rods 611 can be driven to rotate, thereby squeezing the spring shock-absorbing arm 1 620 to achieve the shock-absorbing effect, and the traditional direct installation method of the wheel and the wheelchair frame is changed. By suspending the driving wheel 600 on the wheelchair frame 100, the buffering and shock-absorbing effect of the driving wheel 600 is effectively improved, thereby better meeting the shock-absorbing requirements, and when the driving wheel 600 rotates, the walking wheel 700 can move with the walking, and during driving, when the walking wheel 700 is shaken by the vibration force, the spring shock-absorbing arm 2 730 can be squeezed to achieve the shock-absorbing and buffering function.

[0027] The above is only a preferred embodiment of the utility model. Any person skilled in the art can modify the utility model by using the above technical solution or modify it into an equivalent technical solution. Therefore, any simple modification or equivalent replacement based on the technical solution of the utility model shall fall within the scope of protection claimed by the utility model.

Claims

1. A wheelchair suspension shock-absorbing wheel, comprising a wheelchair frame (100), a backrest (200) fixed on the top of the wheelchair frame (100), armrests (300) symmetrically fixed at both ends of the backrest (200), a controller (400) fixed at the end of the armrest (300), a battery (500) fixed at the rear end of the wheelchair frame (100), the battery (500) being electrically connected to the controller (400), characterized in that: The rear end of the wheelchair frame (100) is connected to a driving wheel (600) via a first shock absorbing component, and the front end of the wheelchair frame (100) is connected to a running wheel (700) via a second shock absorbing component.

2. The wheelchair suspension shock-absorbing wheel according to claim 1, characterized in that: The shock absorbing assembly 1 comprises two triangular arms 1 (610), the two triangular arms 1 (610) are symmetrically rotatably connected to the two sides of the rear end of the wheelchair frame (100), the tops of the two triangular arms 1 (610) are fixed with upper connecting rods (611), and the opposite ends of the two upper connecting rods (611) are rotatably connected with spring shock absorbing arms 1 (620).

3. The wheelchair suspension shock-absorbing wheel according to claim 2, characterized in that: One end of the two upper connecting rods (611) away from the spring shock absorbing arm (620) is hingedly connected to a motor frame (630), and the bottom of the motor frame (630) is hingedly connected to a lower connecting rod (631).

4. The wheelchair suspension shock-absorbing wheel according to claim 3, characterized in that: A bottom beam (640) is fixed to the bottom of the rear end of the wheelchair frame (100), and strip holes (641) are symmetrically provided at both ends of the bottom beam (640), and the opposite ends of the two lower connecting rods (631) are rotatably connected in the two strip holes (641) through pins (632).

5. The wheelchair suspension shock-absorbing wheel according to claim 3, characterized in that: The motor frame (630) is internally fixed with a driving motor (650), and the driving motor (650) is electrically connected to the controller (400). The two driving wheels (600) are respectively fixed to the output shafts of the two driving motors (650).

6. The wheelchair suspension shock-absorbing wheel according to claim 3, characterized in that: A support arm (660) is fixed to the rear end of the motor frame (630), and an auxiliary wheel (670) is rotatably connected to the bottom end of the support arm (660).

7. The wheelchair suspension shock-absorbing wheel according to claim 1, characterized in that: The shock absorbing assembly 2 comprises two front connecting arms (710), the two front connecting arms (710) are symmetrically fixed on both sides of the front end of the wheelchair frame (100), the front ends of the front connecting arms (710) are rotatably connected to the second triangular arm (720), the bottom ends of the second triangular arms (720) are hinged to the front fork arms (721), the walking wheel (700) is rotatably connected to the bottom ends of the front fork arms (721), the bottom ends of the front fork arms (721) are also rotatably connected to the second spring shock absorbing arm (730), and the top ends of the second spring shock absorbing arm (730) are rotatably connected to the second triangular arm (720).

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