Folding shock-proof electric wheelchair

Abstract

The utility model relates to the technical field of wheelchairs, and discloses a folding shock-proof electric wheelchair which comprises a wheelchair chair back and a wheelchair bottom plate hinged to the wheelchair chair back, and further comprises a push rod fixed to the top of the wheelchair chair back, armrests are rotationally connected to the two sides of the wheelchair chair back respectively, a manual controller is fixed to the surface of the armrest on one side, and the push rod is fixed to the bottom of the wheelchair bottom plate. The bottom of the wheelchair bottom plate is rotationally connected with an electric control assembly, and a front-drive driven assembly and a rear-drive assembly are arranged on the two sides of the bottom of the wheelchair bottom plate and located below the electric control assembly respectively. The damping wheelchair has a good damping effect, a user on the wheelchair can be damped and buffered when the user moves to a bumpy road section, the user is prevented from feeling large-amplitude vibration, the use experience of the user is improved, the wheelchair can be conveniently and rapidly folded, the damping structure in the wheelchair serves as a folding connecting rod, and the damping wheelchair is convenient to use. Operation is simple and convenient, and practicability of the wheelchair is effectively improved.

Description

Technical Field

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

[0002] A wheelchair is a chair with wheels that can help replace walking. It is an important means of transportation for the injured, sick, and disabled for home rehabilitation, turnover transportation, medical treatment, and outdoor activities. Wheelchairs not only meet the mobility needs of the physically disabled and those with limited mobility, but more importantly, they facilitate family members to move and take care of patients, allowing patients to exercise and participate in social activities with the help of wheelchairs; wheelchairs can be divided into electric and manual wheelchairs based on drive, and electric wheelchairs can be divided into three types based on drive: rear-wheel drive, mid-wheel drive, and rear-wheel drive. On the basis of ordinary wheelchairs, an electronic power-assist system is added to reduce the user's physical exertion.

[0003] When using current electric wheelchairs, users will feel large vibrations when the wheelchair moves to bumpy roads. The overall rigidity of the wheelchair is too strong and there is no good shock absorption effect, which reduces the user experience. Moreover, when folding the current electric wheelchairs, it often takes multiple steps to complete the folding operation, which is more troublesome to use. Utility Model Content

[0004] The purpose of the utility model is to provide a foldable shock-absorbing electric wheelchair to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a foldable shock-absorbing electric wheelchair, comprising a wheelchair backrest and a wheelchair bottom plate hinged to the wheelchair backrest, and also comprising:

[0006] A push rod is fixed on the top of the wheelchair backrest, armrests are rotatably connected on both sides of the wheelchair backrest, and a hand control is fixed on the surface of one of the armrests, the bottom of the wheelchair bottom plate is rotatably connected to an electric control assembly, and a front drive driven assembly and a rear drive assembly are respectively arranged on both sides of the bottom of the wheelchair bottom plate and below the electric control assembly;

[0007] A crossbeam is fixed under the back of the wheelchair, and shock absorbers are hinged on both sides under the crossbeam. The end of the shock absorber away from the crossbeam is fixed between the rear drive assembly, and a locking structure is provided under the back of the wheelchair and on one side of the crossbeam.

[0008] Preferably, the front-drive driven assembly consists of a front-drive frame, a universal wheel and a foldable pedal, and the front-drive frame is rotatably connected to the wheelchair floor. The rear-drive assembly consists of a rear-drive frame and a drive wheel, and the rear-drive frame is rotatably connected to the wheelchair floor. The shock absorber is fixed to the rear-drive frame, and anti-roll wheels are rotatably connected to both sides of the rear-drive frame.

[0009] Preferably, the locking structure includes a block rotatably connected to both sides of the lower inner wall of the wheelchair backrest, a rotary rod fixed between the blocks, a pressing plate fixed to the middle of the surface of the rotary rod, and a positioning plate fixed to both sides of the lower inner wall of the wheelchair backrest, a torsion spring is installed on the surface of the connecting shaft between the block and the wheelchair backrest, the block is arranged in a folded shape as a whole, and a triangular protrusion is arranged below the positioning plate.

[0010] Preferably, a guide plate is fixed under the armrest, and a guide groove is provided on the surface of the guide plate, support rods are rotatably connected on both sides of the surface of the wheelchair bottom plate, and a guide block is fixed on one side of the support rod, and the guide block passes through the guide groove on the surface of the guide plate and is slidably connected to the inner wall of the guide groove.

[0011] Preferably, a control button and a rocker for controlling the moving direction are installed above the hand control, and the hand control is electrically connected to the electric control assembly, and the electric control assembly is electrically connected to the driving wheel in the rear drive assembly.

[0012] Preferably, a storage bag is sewn on the back side of the wheelchair backrest.

[0013] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0014] The utility model has a good shock-absorbing effect. When the user moves to a bumpy road section, it can provide shock absorption and buffering for the user on the wheelchair to prevent the user from feeling a large amplitude vibration, thereby improving the user's usage experience. Moreover, the wheelchair can be folded quickly and conveniently, and the shock-absorbing structure inside the wheelchair serves as a folding connecting rod. The operation is simple and convenient, which effectively improves the practicality of the wheelchair. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0016] Figure 2 It is a three-dimensional disassembly diagram of the utility model;

[0017] Figure 3 It is a side view of the utility model;

[0018] Figure 4 It is the front view of the utility model;

[0019] Figure 5 It is a three-dimensional schematic diagram after the utility model is expanded;

[0020] Figure 6 It is a three-dimensional schematic diagram of the utility model when folded;

[0021] Figure 7 This is a schematic diagram of the utility model after folding;

[0022] Figure 8 For this utility model Figure 3 A partial enlarged view of the middle A;

[0023] Fig. 9 For this utility model Figure 5 A partial enlarged view of point B in the middle;

[0024] Fig.10 For this utility model Figure 6 A partial enlarged view of point C in the middle.

[0025] In the figure: 1. wheelchair backrest; 2. wheelchair bottom plate; 3. push rod; 4. armrest; 5. manual control; 6. electronic control assembly; 7. front drive driven assembly; 8. rear drive assembly; 9. shock absorber; 10. crossbeam; 11. locking structure; 111. clamping block; 112. rotating rod; 113. pressing plate; 114. positioning plate; 12. anti-tilt wheel; 13. guide plate; 14. support rod; 15. guide block; 16. storage bag. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] See also Figure 1-10 As shown, a foldable shock-absorbing electric wheelchair comprises a wheelchair backrest 1 and a wheelchair base 2, the wheelchair base 2 is hinged to the wheelchair backrest 1, and a push rod 3 for people to push the wheelchair is fixed on the top of the wheelchair backrest 1, armrests 4 are rotatably connected on both sides of the wheelchair backrest 1, and a hand control 5 is fixed on the surface of the armrest 4 on one side, an electric control assembly 6 is rotatably connected to the bottom of the wheelchair base 2, a front drive driven assembly 7 and a rear drive assembly 8 are respectively arranged on both sides of the bottom of the wheelchair base 2 and below the electric control assembly 6, a cross beam 10 is fixed below the wheelchair backrest 1, and shock absorbers 9 are hinged on both sides below the cross beam 10, one end of the shock absorber 9 away from the cross beam 10 is fixed between the rear drive assembly 8, and a locking structure 11 is arranged below the wheelchair backrest 1 and on one side of the cross beam 10.

[0028] The front-drive driven assembly 7 is composed of a front-drive frame, a universal wheel and a foldable pedal, and the front-drive frame is rotatably connected to the wheelchair bottom plate 2. The rear-drive assembly 8 is composed of a rear-drive frame and a driving wheel, and the rear-drive frame is rotatably connected to the wheelchair bottom plate 2. The shock absorber 9 is fixed to the rear-drive frame, and both sides of the rear-drive frame are rotatably connected with anti-roll wheels 12. When the driving wheel rotates, the universal wheel on the other side can be driven to rotate. The user can put his feet on the pedals, and the anti-roll wheels 12 on both sides can further improve the stability of the wheelchair when moving.

[0029] The locking structure 11 includes a block 111, a rotary rod 112, a pressing plate 113 and a positioning plate 114. The block 111 is rotatably connected to both sides of the lower inner wall of the wheelchair backrest 1, and a torsion spring is installed on the surface of the connecting shaft between the block 111 and the wheelchair backrest 1. The block 111 is arranged in a folding shape as a whole. The rotary rod 112 is fixed between the blocks 111, the pressing plate 113 is fixed to the middle part of the surface of the rotary rod 112, the positioning plate 114 is fixed to both sides of the lower inner wall of the wheelchair backrest 1, and a triangular protrusion is arranged below the positioning plate 114. When the wheelchair is unfolded, the triangular protrusion below the positioning plate 114 will block the block 111, thereby keeping the wheelchair bottom plate 2 in a horizontal state. If the wheelchair needs to be blocked, the user only needs to press the pressing plate 113 on the surface of the rotary rod 112 downward to move the block 111 out of the protrusion below the positioning plate 114, so that the wheelchair can be folded.

[0030] A guide plate 13 is fixed below the armrest 4, and a guide groove is provided on the surface of the guide plate 13. Support rods 14 are rotatably connected to both sides of the surface of the wheelchair bottom plate 2, and a guide block 15 is fixed to one side of the support rod 14. The guide block 15 penetrates the guide groove on the surface of the guide plate 13 and is slidably connected to the inner wall of the guide groove. When the wheelchair is unfolded, the user pulls the support rod 14 to lift the armrest 4, and the support rod 14 supports the armrest 4 so that the user can place his hands on the surface of the armrest 4 to support the user's arms.

[0031] Control buttons and a joystick for controlling the moving direction are installed above the hand control 5, and the hand control 5 is electrically connected to the electronic control assembly 6, and the electronic control assembly 6 is electrically connected to the driving wheel in the rear drive assembly 8. When the user sits on the wheelchair, the moving direction of the wheelchair can be controlled by toggling the joystick above.

[0032] A storage bag 16 is sewn on the back of the wheelchair backrest 1. When the user uses the wheelchair, the user can put personal belongings into the storage bag 16, which further improves the practicality of the wheelchair.

[0033] Working principle: When the wheelchair is in use, the user sits on the wheelchair base plate 2 and puts both feet on the pedals. The user uses the control button and the joystick above the hand control 5 to rotate the driving wheel below. When moving to a bumpy road section, the shock absorbers 9 on both sides above the rear-drive frame of the wheelchair will cushion the entire wheelchair to prevent the user above the wheelchair base plate 2 from feeling a large vibration. When the wheelchair is used up and needs to be folded, the user first presses down the pressing plate 113 to move the card block 111. At this time, the user pushes the push rod 3 to make the wheelchair back 1 fit against the wheelchair base plate 2, so that the wheelchair is folded. After the folding is completed, the user flips the pedal to complete the folding operation of the wheelchair.

[0034] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A foldable shock-absorbing electric wheelchair, comprising a wheelchair backrest (1) and a wheelchair bottom plate (2) hinged to the wheelchair backrest (1), characterized in that: Also includes: A push rod (3) is fixed on the top of the wheelchair backrest (1), and both sides of the wheelchair backrest (1) are rotatably connected to armrests (4), and a hand control (5) is fixed on the surface of the armrest (4) on one side, and the bottom of the wheelchair base plate (2) is rotatably connected to an electric control assembly (6), and a front drive driven assembly (7) and a rear drive assembly (8) are respectively arranged on both sides of the bottom of the wheelchair base plate (2) and below the electric control assembly (6); A crossbeam (10) is fixed below the wheelchair backrest (1), and shock absorbers (9) are hinged on both sides below the crossbeam (10). The end of the shock absorber (9) away from the crossbeam (10) is fixed between the rear drive assembly (8), and a locking structure (11) is provided below the wheelchair backrest (1) and on one side of the crossbeam (10).

2. A foldable shock-absorbing electric wheelchair according to claim 1, characterized in that: The front-drive driven assembly (7) is composed of a front-drive frame, a universal wheel and a foldable pedal, and the front-drive frame is rotatably connected to the wheelchair bottom plate (2). The rear-drive assembly (8) is composed of a rear-drive frame and a driving wheel, and the rear-drive frame is rotatably connected to the wheelchair bottom plate (2). The shock absorber (9) is fixed to the rear-drive frame, and both sides of the rear-drive frame are rotatably connected to anti-tilt wheels (12).

3. The foldable shock-absorbing electric wheelchair according to claim 1, characterized in that: The locking structure (11) comprises a clamping block (111) rotatably connected to both sides of the lower inner wall of the wheelchair back (1), a rotating rod (112) fixed between the clamping blocks (111), a pressing plate (113) fixed to the middle of the surface of the rotating rod (112), and a positioning plate (114) fixed to both sides of the lower inner wall of the wheelchair back (1), a torsion spring is installed on the surface of the connecting shaft between the clamping block (111) and the wheelchair back (1), the clamping block (111) is arranged in a folding shape as a whole, and a triangular protrusion is arranged below the positioning plate (114).

4. The foldable shock-absorbing electric wheelchair according to claim 1, characterized in that: A guide plate (13) is fixed below the handrail (4), and a guide groove is provided on the surface of the guide plate (13). Support rods (14) are rotatably connected to both sides of the surface of the wheelchair bottom plate (2), and a guide block (15) is fixed to one side of the support rod (14). The guide block (15) passes through the guide groove on the surface of the guide plate (13) and is slidably connected to the inner wall of the guide groove.

5. The foldable shock-absorbing electric wheelchair according to claim 2, characterized in that: A control button and a rocker for controlling the moving direction are installed above the hand control (5), and the hand control (5) is electrically connected to the electric control assembly (6), and the electric control assembly (6) is electrically connected to the driving wheel in the rear drive assembly (8).

6. The foldable shock-absorbing electric wheelchair according to claim 1, characterized in that: A storage bag (16) is sewn onto the back of the wheelchair backrest (1).

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