Electric wheelchair with height-adjustable armrests

Abstract

The utility model relates to the technical field of travel tools, in particular to an electric wheelchair with height-adjustable armrests, which comprises a seat, sliding open grooves are arranged at the front end and the rear end of the seat, and adjusting mechanisms for adjusting movement of the armrests are arranged on the two sliding open grooves. The adjusting mechanism comprises two transverse sliding strips matched with the sliding open grooves in size, one ends of the two transverse sliding strips are connected into the sliding open grooves in a sliding mode, the transverse sliding strips slide left and right, and through cooperation of the seat and the adjusting mechanism, the supporting plate can move up and down, left and right and rotate horizontally; according to the wheelchair, personal belongings are stored in the storage mechanism, free movement of the wheelchair is achieved through the moving mechanism, the wheelchair is easy to operate during use, the push handle can be effectively adjusted, operability and safety of a user are improved, and practicability is high.

Description

Technical Field

[0001] The utility model relates to the technical field of travel tools, in particular to an electric wheelchair with adjustable armrest heights. Background Art

[0002] As we all know, electric wheelchairs are modified and upgraded on the basis of traditional manual wheelchairs by adding high-performance power drive devices, intelligent control devices, batteries and other components. They are equipped with manually operated intelligent controllers, which can drive the wheelchair to complete various functions such as forward, backward, turning, standing, lying flat, etc. They are a new generation of intelligent wheelchairs that are high-tech products that combine modern precision machinery, intelligent numerical control, engineering mechanics and other fields.

[0003] When an electric wheelchair is in use, the user operates the electric wheelchair to move it. However, since the traditional electric wheelchair is designed according to the average human body shape, its armrests cannot be adjusted. If the user is taller or shorter, the taller or shorter user will have difficulty in operating the electric wheelchair, and it will also cause safety hazards. To address the above problems, the present application designs an electric wheelchair with adjustable armrest height. Utility Model Content

[0004] 1. Technical issues to be resolved

[0005] In view of the deficiencies in the prior art, the utility model provides an electric wheelchair with adjustable armrest heights.

[0006] (II) Technical solution

[0007] To achieve the above-mentioned objectives, the utility model provides the following technical solutions: an electric wheelchair with adjustable armrest height, comprising a seat, wherein sliding grooves are provided at both front and rear ends of the seat, and adjustment mechanisms for adjusting the movement of the armrests are provided on the two sliding grooves, and the adjustment mechanisms include two transverse sliding bars that match the size of the sliding grooves, and one end of the two transverse sliding bars is slidably connected in the sliding grooves, and the transverse sliding bars slide left and right, and the other end of the transverse sliding bar is fixedly connected to a first bracket, and a vertical sliding bar is slidably connected in the first bracket, and the vertical sliding bar slides up and down, and a support plate is rotatably connected to the vertical sliding bar, and the support plate rotates horizontally, a storage mechanism for storing articles is provided on the seat, and a moving mechanism for moving the wheelchair is provided at the lower end of the seat.

[0008] In order to facilitate the storage of carry-on items, the utility model is improved in that the storage mechanism includes a storage bin, which is opened at the right end of the seat, and a storage drawer is slidably connected to the storage bin, and the storage drawer opens from left to right. A handle is fixedly connected to the right end of the storage drawer.

[0009] In order to move the electric wheelchair, the utility model is improved in that the moving mechanism includes a plurality of second brackets, the plurality of second brackets are fixedly connected to the lower end of the seat, the second brackets are rotatably connected to a rotating shaft, both ends of the rotating shaft passing through the second brackets are fixedly connected to wheels, the rotating shaft located on the right side is fixedly connected to a first bevel gear, the first bevel gear is close to the wheel located at the rear, a mounting plate is fixedly connected under the seat, the mounting plate is located at the right rear of the seat, a motor is mounted on the mounting plate, the output end of the motor is fixedly connected to a second bevel gear, the second bevel gear is meshed with the first bevel gear.

[0010] In order to facilitate pushing the electric wheelchair when it is short of electricity or out of power, the utility model has the following improvements: a placement plate is fixedly connected to the left end of the seat, a pedal is fixedly connected to the lower end of the placement plate, soft cushions are provided on the placement plate and the seat, and a push handle is fixedly connected to the right end of the seat.

[0011] In order to limit the transverse slide bar, the vertical slide bar and the support plate, the utility model has the following improvements: the two transverse slide bars are rotatably connected with a first limit screw for limiting the movement of the transverse slide bars, the top ends of the two vertical slide bars are rotatably connected with a second limit screw for limiting the rotation of the support plate, the bottom end of the vertical slide bar is fixedly connected with a limit block, the limit block is provided with a spring limit shaft, the spring limit shaft is a transverse limit, and the two first brackets are provided with openings matching the size of the spring limit shaft.

[0012] In order to facilitate the operation of the movement of the electric wheelchair and the emergency stop in case of emergency, the utility model is improved in that an emergency stop button is arranged on the front support plate, and an operating rod is arranged on the rear support plate.

[0013] (III) Beneficial effects

[0014] Compared with the prior art, the utility model provides an electric wheelchair with adjustable armrest height, which has the following beneficial effects:

[0015] The electric wheelchair with adjustable armrest height can move the support plate up and down, left and right, and rotate horizontally through the cooperation of the seat and the adjustment mechanism, can store personal belongings through the storage mechanism, and can move the wheelchair freely through the moving mechanism. The device is relatively simple to operate when in use, can effectively adjust the push handle, improves the operability and safety of the user, and is highly practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the first main structure of the utility model;

[0017] Figure 2 This is a second main structural diagram of the utility model;

[0018] Figure 3 This is a schematic diagram of the first partial structure of the utility model;

[0019] Figure 4 It is a schematic diagram of the second partial structure of the utility model.

[0020] In the figure: 1. seat; 2. sliding slot; 3. horizontal sliding bar; 4. first bracket; 5. vertical sliding bar; 6. support plate; 7. storage compartment; 8. storage drawer; 9. handle; 10. second bracket; 11. rotating shaft; 12. wheel; 13. first bevel gear; 14. mounting plate; 15. motor; 16. second bevel gear; 17. placement plate; 18. pedal; 19. push handle; 20. first limit screw; 21. second limit screw; 22. spring limit shaft; 23. emergency stop button; 24. operating lever. DETAILED DESCRIPTION

[0021] 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.

[0022] See also Figure 1-4, an electric wheelchair with adjustable armrest height, comprising a seat 1, wherein both front and rear ends of the seat 1 are provided with sliding slots 2, and the two sliding slots 2 are provided with adjustment mechanisms for adjusting the movement of the armrests, and the adjustment mechanisms include two transverse sliding bars 3 that match the sizes of the sliding slots 2, and one end of the two transverse sliding bars 3 is slidably connected in the sliding slots 2, and the transverse sliding bars slide left and right, and the other end of the transverse sliding bars 3 is fixedly connected to a first bracket 4, and a vertical sliding bar 5 is slidably connected in the first bracket 4, and the vertical sliding bar 5 slides up and down, and a support plate 6 is rotatably connected to the vertical sliding bar 5, and the support plate 6 is horizontally rotated, a storage mechanism for storing articles is provided on the seat 1, and a moving mechanism for moving the wheelchair is provided at the lower end of the seat 1, the storage mechanism includes a storage bin 7, the storage bin 7 is opened at the right end of the seat 1, a storage drawer 8 is slidably connected in the storage bin 7, the storage drawer 8 is opened from left to right, and a handle 9 is fixedly connected to the right end of the storage drawer 8, the moving mechanism includes a plurality of second brackets 10, a plurality of the second brackets 10 are fixedly connected to the lower end of the seat 1, and a rotating shaft 11 is rotatably connected to the second bracket 10, and the rotating shaft 11 passes through both ends of the second bracket 10 and is fixed A wheel 12 is connected, a first bevel gear 13 is fixedly connected to the rotating shaft 11 located on the right side, the first bevel gear 13 is close to the wheel 12 located at the back, a mounting plate 14 is fixedly connected under the seat 1, the mounting plate 14 is located at the right rear of the seat 1, a motor 15 is installed on the mounting plate 14, the output end of the motor 15 is fixedly connected to a second bevel gear 16, the second bevel gear 16 is meshed with the first bevel gear 13, a placement plate 17 is fixedly connected to the left end of the seat 1, a pedal 18 is fixedly connected to the lower end of the placement plate 17, and cushions are provided on the placement plate 17 and the seat 1 The right end of the seat 1 is fixedly connected with a push handle 19, the two horizontal sliding bars 3 are rotatably connected with a first limit screw 20 for limiting the movement of the horizontal sliding bar 3, the top of the two vertical sliding bars 5 are rotatably connected with a second limit screw 21 for limiting the rotation of the support plate 6, the bottom end of the vertical sliding bar 5 is fixedly connected with a limit block, and a spring limit shaft 22 is provided on the limit block, and the spring limit shaft 22 is a horizontal limit, and the two first brackets 4 are provided with openings matching the size of the spring limit shaft 22, an emergency stop button 23 is provided on the front support plate 6, and an operating lever 24 is provided on the rear support plate 6.

[0023] When the device is in use, the operator pulls the handle 9 to the right, and the handle 9 drives the storage drawer 8 to slide to the right and open. The operator puts the personal belongings into the storage drawer 8 and closes the storage drawer 8. The operator sits on the electric seat 1 and moves the horizontal slide bar left and right. The horizontal slide bar drives the first bracket 4 to move left and right. The first bracket 4 drives the vertical slide bar 5. The vertical slide bar 5 drives the support plate 6 to a suitable position. Tighten the first limiting screw 20 to limit the horizontal slide bar, slide the vertical slide bar 5 up and down, and the vertical slide bar 5 drives the support plate 6 to move up and down to a suitable position. The spring limiting shaft 22 automatically limits the position. Rotate the support plate 6 horizontally to a suitable position, tighten the second limit screw 21 to limit the rotation of the support plate 6, turn on the operating lever 24 switch, operate the motor 15 to work while controlling the direction, the output end of the motor 15 rotates to drive the second bevel gear 16 to rotate, the second bevel gear engages with the first bevel gear 13, the second bevel gear 16 drives the first bevel gear 13 to engage and rotate, the first bevel gear 13 drives the rotating shaft 11 on the right side to rotate, the rotating shaft 11 drives the wheel 12 to rotate, and the wheel 12 drives the electric wheelchair to move to the left. If an emergency occurs, press the emergency stop button.

[0024] In order to explain in detail the possible application scenarios, technical principles, specific schemes that can be implemented, and the purposes and effects that can be achieved, the following is a detailed description of the specific embodiments listed in conjunction with the accompanying drawings. The embodiments described herein are only used to more clearly illustrate the technical solutions of the present application, and are therefore only used as examples, and cannot be used to limit the scope of protection of the present application.

[0025] Reference to "embodiment" herein means that the specific features, structures or characteristics described in conjunction with the embodiment may be included in at least one embodiment of the present application. The term "embodiment" appearing in various places in the specification does not necessarily refer to the same embodiment, nor does it particularly limit its independence or association with other embodiments. In principle, in the present application, as long as there is no technical contradiction or conflict, the various technical features mentioned in the embodiments can be combined in any way to form a corresponding implementable technical solution.

[0026] Unless otherwise defined, the technical terms used in this document have the same meanings as those generally understood by those skilled in the art to which this application belongs; the use of relevant terms in this document is only for describing specific embodiments and is not intended to limit this application.

[0027] 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. An electric wheelchair with adjustable armrest height, comprising a seat (1), characterized in that: The front and rear ends of the seat (1) are both provided with sliding grooves (2), and the two sliding grooves (2) are provided with adjustment mechanisms for adjusting the movement of the armrests. The adjustment mechanisms include two transverse sliding bars (3) that match the size of the sliding grooves (2), one end of the two transverse sliding bars (3) is slidably connected in the sliding grooves (2), and the transverse sliding bars slide left and right. The other end of the transverse sliding bar (3) is fixedly connected to a first bracket (4), and a vertical sliding bar (5) is slidably connected in the first bracket (4), and the vertical sliding bar (5) slides up and down. A support plate (6) is rotatably connected to the vertical sliding bar (5), and the support plate (6) rotates horizontally. A storage mechanism for storing articles is provided on the seat (1), and a moving mechanism for moving the wheelchair is provided at the lower end of the seat (1).

2. The electric wheelchair with adjustable armrest height according to claim 1, characterized in that: The storage mechanism comprises a storage bin (7), the storage bin (7) is opened at the right end of the seat (1), a storage drawer (8) is slidably connected inside the storage bin (7), the storage drawer (8) opens from left to right, and a handle (9) is fixedly connected to the right end of the storage drawer (8).

3. The electric wheelchair with adjustable armrest height according to claim 2, characterized in that: The moving mechanism comprises a plurality of second brackets (10), wherein the plurality of second brackets (10) are fixedly connected to the lower end of the seat (1), a rotating shaft (11) is rotatably connected to the second bracket (10), both ends of the rotating shaft (11) passing through the second bracket (10) are fixedly connected to wheels (12), a first bevel gear (13) is fixedly connected to the rotating shaft (11) located on the right side, the first bevel gear (13) is close to the wheel (12) located at the rear, a mounting plate (14) is fixedly connected under the seat (1), the mounting plate (14) is located at the right rear of the seat (1), a motor (15) is mounted on the mounting plate (14), an output end of the motor (15) is fixedly connected to a second bevel gear (16), and the second bevel gear (16) is meshed with the first bevel gear (13).

4. The electric wheelchair with adjustable armrest height according to claim 3, characterized in that: The left end of the seat (1) is fixedly connected to a placement plate (17), the lower end of the placement plate (17) is fixedly connected to a pedal (18), both the placement plate (17) and the seat (1) are provided with soft cushions, and the right end of the seat (1) is fixedly connected to a push handle (19).

5. The electric wheelchair with adjustable armrest height according to claim 4, characterized in that: The two transverse sliding bars (3) are rotatably connected with a first limit screw (20) for limiting the movement of the transverse sliding bars (3); the top ends of the two vertical sliding bars (5) are rotatably connected with a second limit screw (21) for limiting the rotation of the support plate (6); the bottom ends of the vertical sliding bars (5) are fixedly connected with a limit block; a spring limit shaft (22) is provided on the limit block; the spring limit shaft (22) is a transverse limit; and the two first brackets (4) are provided with openings that match the size of the spring limit shaft (22).

6. The electric wheelchair with adjustable armrest height according to claim 5, characterized in that: An emergency stop button (23) is arranged on the supporting plate (6), and an operating rod (24) is arranged on the other supporting plate (6).

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