Shock-proof lying type wheelchair

Abstract

The utility model relates to the technical field of wheelchairs, and provides a shock-proof lying type wheelchair which comprises a frame and front wheels arranged at the front end of the frame, a seat is arranged on the frame, a backrest plate is arranged at the rear end of the seat, and an inclination adjusting mechanism is arranged between the frame and the backrest plate. One end of the connecting supporting rod is hinged to the rear end of the frame, a motor is installed on the connecting supporting rod, the motor is connected with a rear wheel, and a shock absorber is arranged between the frame and the connecting supporting rod. The sitting posture can be conveniently adjusted, the good damping effect is achieved, and the use comfort is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of wheelchairs, and more specifically, to a shock-absorbing reclining wheelchair. Background Art

[0002] A wheelchair is a wheeled seat mainly used for the disabled or other people with difficulty in walking. Existing electric wheelchairs are powered by a storage battery driving an engine. However, the existing wheelchair designs tend to be rigid and inhumane. The traditional wheelchair shock-absorbing system is poor. When encountering bumpy roads or harsh environments, the riding feeling and comfort are relatively poor. Moreover, the traditional wheelchair does not have the function of backrest adjustment. The people using wheelchairs or electric wheelchairs are disabled, elderly, weak, and sick. They need to rely on wheelchairs or electric wheelchairs for a long time and sit on them for a long time every day. It is very tiring to maintain one sitting posture all the time. Therefore, in order to improve their use comfort, a shock-absorbing reclining wheelchair is designed. Summary of the Utility Model

[0003] The purpose of the utility model is to provide a shock-absorbing reclining wheelchair that can facilitate the adjustment of sitting postures and has a good shock-absorbing effect, thereby improving the use comfort.

[0004] The utility model is realized through the following technical solutions: A shock-absorbing reclining wheelchair includes a frame and a front wheel provided at the front end of the frame. A seat is arranged on the frame. A backrest plate is provided at the rear end of the seat. An inclination adjustment mechanism is arranged between the frame and the backrest plate; a connecting support rod, one end of which is hinged to the rear end of the frame, and a motor is installed on the connecting support rod. The motor is connected to a rear wheel. A shock absorber is arranged between the frame and the connecting support rod.

[0005] Further, the inclination adjustment mechanism includes a fixed plate and a positioning adjustment plate. One end of the fixed plate is installed on the frame, and a pin cylinder is provided on the fixed plate; one end of the positioning adjustment plate is installed on the backrest plate, and a plurality of positioning holes adapted to the pin cylinder are provided on the positioning adjustment plate; a limit pin, which sequentially passes through the positioning holes and the pin cylinder.

[0006] Further, an installation column is provided at the rear end of the backrest plate. One end of the positioning adjustment plate is sleeved on the installation column and locked by a screw.

[0007] Further, the pin cylinder is a through-hole structure, and the bottom hole diameter of the pin cylinder is smaller than the diameter of the limit pin.

[0008] Further, the connecting support rod includes a horizontal portion and a bending portion. Side plates are respectively provided on both sides of the horizontal portion. A gap is left between the two side plates to be adapted to be clamped into the frame and hinged thereto; one end of the shock absorber is rotatably connected to the side plate.

[0009] Further, an auxiliary wheel is installed at the end of the bent portion.

[0010] Further, armrests are provided on both sides of the seat, and a controller is installed on the armrests.

[0011] Further, a fender is installed on the rear wheel.

[0012] Further, the front wheels are universal wheels.

[0013] Further, a spring is provided at the top connection end of the front wheel.

[0014] The technical solutions of the embodiments of the present utility model have at least the following advantages and beneficial effects:

[0015] 1. By providing an inclination adjustment mechanism on the backrest plate to adjust the comfortable angle of the backrest reclining according to the user's usage requirements;

[0016] 2. The rear wheel and the motor are installed on the connecting support rod, and the connecting support rod is hinged to the frame, and the shock absorber is arranged between the frame and the connecting support rod to form a triangular support structure. The shock absorber has a very good shock absorption effect and effectively weakens the shock feeling on the seat. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following will briefly introduce the drawings required for the embodiments. It should be understood that the following drawings only show some embodiments of the present utility model, and therefore should not be regarded as limiting the scope. For those of ordinary skill in the art, other related drawings can be obtained based on these drawings without creative efforts.

[0018] Figure 1 FIG. is a schematic structural diagram of a shock-absorbing reclining wheelchair provided for the embodiments of the present utility model;

[0019] Figure 2 is Figure 1 a partial structural diagram of point A in;

[0020] Figure 3 FIG. is a schematic connection structure diagram of the frame and the connecting support rod in the present utility model;

[0021] Figure 4 FIG. is a schematic connection structure diagram of the frame and the front wheel in the present utility model.

[0022] Icon: 1 - Frame, 2 - Front wheel, 3 - Seat, 4 - Backrest plate, 41 - Mounting post, 5 - Inclination adjustment mechanism, 51 - Fixed plate, 511 - Pin cylinder, 52 - Positioning adjustment plate, 521 - Positioning jack, 53 - Limit pin, 6 - Connecting support rod, 61 - Horizontal part, 611 - Side plate, 62 - Bending part, 63 - Auxiliary wheel, 7 - Motor, 8 - Shock absorber, 9 - Rear wheel, 10 - Armrest, 11 - Controller, 12 - Fender, 13 - Spring. Detailed implementation manners

[0023] To make the objectives, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are some but not all of the embodiments of the present utility model. Usually, the components of the embodiments of the present utility model described and illustrated in the accompanying drawings here can be arranged and designed in various different configurations.

[0024] Therefore, the following detailed description of the embodiments of the present utility model provided in the accompanying drawings is not intended to limit the scope of the claimed present utility model, but merely represents selected embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts fall within the scope of protection of the present utility model.

[0025] It should be noted that: Similar reference numerals and letters denote similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0026] The following is further described with reference to specific embodiments. Refer to Figures 1-3As shown in the figure, this embodiment is a shock-absorbing and reclining wheelchair, which includes a frame 1 and a front wheel 2 provided at the front end of the frame 1. A seat 3 is arranged on the frame 1, and a backrest plate 4 is provided at the rear end of the seat 3. An inclination adjustment mechanism 5 is arranged between the frame 1 and the backrest plate 4; a connecting support rod 6, one end of which is hinged to the rear end of the frame 1, and a motor 7 is installed on the connecting support rod 6. The motor 7 is connected to a rear wheel 9, and a shock absorber 8 is arranged between the frame 1 and the connecting support rod 6; specifically, in the normal state, the angle between the frame 1 and the backrest plate 4 is 90°, and the user can adjust the backrest plate 4 to tilt backward to a suitable position and fix it according to the inclination adjustment mechanism 5 installed on the backrest plate 4; the wheelchair is driven forward by the motor 7 driving the rear wheel 9. When the rear wheel 9 and the connecting support rod 6 encounter a potholed road section, they move up and down synchronously with the road surface and cooperate with the shock absorber 8 to eliminate most of the vibrations. As a result, the vibration amplitude felt on the seat 3 is greatly reduced, and the comfort of the user is greatly improved. The shock absorber 8 is in a relatively vertical state, which is very coincident with the vibration direction of the rear wheel 9, and the shock absorber 8 forms a triangular stable support with the frame 1 and the connecting support rod 6.

[0027] Referring to Figure 2 As shown in the figure, the inclination adjustment mechanism 5 in this embodiment includes a fixed plate 51 and a positioning adjustment plate 52. One end of the fixed plate 51 is installed on the frame 1, and a plug pin cylinder 511 is provided on the fixed plate 51; one end of the positioning adjustment plate 52 is installed on the backrest plate 4, and a plurality of positioning holes 521 adapted to the plug pin cylinder 511 are provided on the positioning adjustment plate 52; a limit pin 53, which sequentially passes through the positioning hole 521 and the plug pin cylinder 511; specifically, when the limit pin 53 is removed, the backrest plate 4 and the arc-shaped positioning adjustment plate 52 are inserted and fixed with the corresponding positioning holes 521 aligned with the plug pin cylinder 511 according to the angle to be tilted, and the user has a good comfortable backrest angle.

[0028] Referring to Figure 3 As shown in the figure, in order to fixedly install the positioning adjustment plate 52, an installation post 41 is provided at the rear end of the backrest plate 4. One end of the positioning adjustment plate 52 is sleeved on the installation post 41 and locked by screws. And during assembly, when the positioning adjustment plate 52 is slid along the installation post 41 to a position where it is at the same height as the plug pin cylinder 511, and the positioning hole 521 on the positioning adjustment plate 52 can be aligned with the plug pin cylinder 511, it is locked with screws.

[0029] As Figure 3 shown in the figure, the plug pin cylinder 511 in this embodiment is a through-hole structure, and the bottom hole diameter of the plug pin cylinder 511 is smaller than the diameter of the limit pin 53; specifically, in order to prevent the limit pin 53 from being stuck in the plug pin cylinder 511, the limit pin 53 can be knocked out from the bottom hole end of the plug pin cylinder 511.

[0030] As Figure 3As shown in the figure, the connecting support rod 6 in this embodiment includes a horizontal portion 61 and a bent portion 62. Side plates 611 are respectively provided on both sides of the horizontal portion 61, and a gap is left between the two side plates 611 to be adapted to be snapped into the vehicle frame 1 and hinged thereto; one end of the shock absorber 8 is rotatably connected to the side plate 611, so that a triangular structure is formed among the vehicle frame 1, the shock absorber 8 and the horizontal portion 61. The shock absorber 8 is in a state relatively perpendicular to the road surface to cancel vibrations. In order to share a part of the gravity borne by the wheelchair, an auxiliary wheel 63 is installed at the end of the bent portion 62.

[0031] Referring to Figure 1 As shown in the figure, in order to facilitate the user to support with both hands to control the movement of the wheelchair, armrests 10 are provided on both sides of the seat 3, and a controller 11 is installed on the armrests 10. When the user's hands are placed on the armrests 10, they can just touch the controller 11.

[0032] Referring to Figure 3 As shown in the figure, in order to prevent the rear wheel 9 from moving too fast and splashing mud and water, a fender 12 is installed on the rear wheel 9.

[0033] In order to improve the flexibility of the wheelchair, the front wheel 2 adopts a universal wheel, so as to realize the steering of the wheelchair.

[0034] As Figure 4 shown in the figure, a spring 13 is provided at the top connection end of the front wheel 2 and cooperates with the shock absorber 8 of the rear wheel 9, improving the overall shock absorption effect of the wheelchair and providing a better riding experience for the user.

[0035] The above are only the preferred embodiments of the present invention and are not used to limit the present invention. For those skilled in the art, the present invention can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A shock-absorbing reclining wheelchair, comprising a frame (1) and a front wheel (2) provided at the front end of the frame (1), a seat (3) is provided on the frame (1), and a backrest plate (4) is provided at the rear end of the seat (3), characterized in that: An inclination adjustment mechanism (5) is provided between the vehicle frame (1) and the backrest plate (4); A connecting support rod (6), one end of which is hinged to the rear end of the vehicle frame (1), and a motor (7) is installed on the connecting support rod (6), the motor (7) is connected to a rear wheel (9), and a shock absorber (8) is provided between the vehicle frame (1) and the connecting support rod (6).

2. The shock-absorbing reclining wheelchair according to claim 1, wherein: The inclination adjustment mechanism (5) includes a fixed plate (51) and a positioning adjustment plate (52), one end of the fixed plate (51) is installed on the vehicle frame (1), and a pin cylinder (511) is provided on the fixed plate (51); One end of the positioning adjustment plate (52) is installed on the backrest plate (4), and a plurality of positioning holes (521) adapted to the pin cylinder (511) are provided on the positioning adjustment plate (52); A limit pin (53) sequentially passes through the positioning hole (521) and the pin cylinder (511).

3. The shock-absorbing reclining wheelchair according to claim 2, characterized in that: An installation column (41) is provided at the rear end of the backrest plate (4), and one end of the positioning adjustment plate (52) is sleeved on the installation column (41) and locked by screws.

4. The shock-absorbing reclining wheelchair according to claim 2, wherein: The pin cylinder (511) is a through-hole structure, and the bottom hole diameter of the pin cylinder (511) is smaller than the diameter of the limit pin (53).

5. The shock-absorbing reclining wheelchair according to claim 1, characterized in that: The connecting support rod (6) includes a horizontal portion (61) and a bent portion (62), side plates (611) are respectively provided on both sides of the horizontal portion (61), and a gap is left between the two side plates (611) to be adapted to be inserted into the vehicle frame (1) and hinged thereto; One end of the shock absorber (8) is rotatably connected to the side plate (611).

6. The shock-absorbing reclining wheelchair according to claim 5, wherein: An auxiliary wheel (63) is installed at the tail end of the bent portion (62).

7. The shock-absorbing reclining wheelchair according to claim 1, wherein: Armrests (10) are provided on both sides of the seat (3), and a controller (11) is installed on the armrests (10).

8. The shock-absorbing reclining wheelchair according to claim 1, characterized in that: A fender (12) is installed on the rear wheel (9).

9. The shock-absorbing reclining wheelchair according to claim 1, wherein: The front wheel (2) is a universal wheel.

10. The shock-absorbing reclining wheelchair according to claim 9, characterized in that: A spring (13) is provided at the top connection end of the front wheel (2).

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