Electric wheelchair with adjustable side supports

Abstract

The utility model relates to the technical field of electric wheelchairs, in particular to an electric wheelchair with adjustable side supports. According to the technical scheme, the electric wheelchair comprises an electric wheelchair body and a wheelchair cushion arranged on the electric wheelchair body, a pair of fixed side supporting plates are arranged on the two sides of the top of the wheelchair cushion, and the electric wheelchair further comprises two adjusting side supporting plates installed on the outer surfaces of the fixed side supporting plates; and an adjusting assembly. Through cooperation of the fixed side supporting plate, the rotating mechanism, the baffle mechanism, the reminding mechanism and other structures, the side supporting plate can be adjusted in a personalized mode according to the body size and requirements of a user, it is ensured that the supporting strength and position provided by the side supporting plate meet the requirements of the user, and therefore the comfort degree is improved. Meanwhile, the adjusted side supporting plates can provide good supporting and stability, the user is helped to keep a correct sitting posture, shaking or discomfort possibly occurring in the moving process is reduced, and therefore safety is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of electric wheelchairs, in particular to an electric wheelchair with adjustable side supports. Background Art

[0002] An electric wheelchair is a portable, electric vehicle, usually powered by a battery, designed to help people with limited mobility move around. They usually have joysticks or buttons to control forward, backward, steering and other functions. Electric wheelchairs can greatly improve the quality of life for people with limited mobility, making it easier for them to carry out daily activities such as shopping, socializing and outdoor activities. Wheelchairs are usually equipped with side supports, which are used to keep the user in a correct sitting position in the wheelchair. However, there are both specific wheelchairs and standard-sized wheelchairs, where the design of specific wheelchairs is customized according to the needs and specific mobility of the user, which is expensive. Standard-sized wheelchairs are usually designed to fit most users, and most customers have similar body sizes, and there are no particularly tall or thin people. But even for most users, there will be some differences in their size, which will not allow most users to maintain a correct sitting position in a standard-sized electric wheelchair. Utility Model Content

[0003] The purpose of the utility model is to solve the problem that standard-sized wheelchairs are usually designed to be suitable for most users, and most customers have similar body sizes, and there are no particularly tall or thin people. However, even for most users, there are certain differences in their sizes, and thus most users cannot maintain a correct sitting posture when sitting on a standard-sized electric wheelchair. Therefore, an electric wheelchair with adjustable side supports is proposed.

[0004] The technical solution of the utility model is as follows: an electric wheelchair with adjustable side supports, comprising an electric wheelchair body and a wheelchair cushion arranged on the electric wheelchair body, a pair of fixed side support plates are provided on both sides of the top of the wheelchair cushion, and also includes: two adjustment side support plates, which are installed on the outer surfaces of the fixed side support plates; an adjustment component, which is installed on the adjustment side support plate and moves along the width direction of the wheelchair cushion to adjust the distance between the two adjustment side support plates; a prompt mechanism, which is located on one side of the adjustment component, and assists the movement distance of the adjustment components on the two adjustment side support plates to remain consistent.

[0005] Optionally, a side of the fixed side support plate close to the adjustable side support plate is provided with a plurality of limit rods, and a side of the adjustable side support plate close to the fixed side support plate is fixedly connected with a plurality of spiral sleeve rods corresponding to the limit rods and movably sleeved.

[0006] Optionally, the adjustment assembly includes an adjusting screw rod fixedly connected to a fixed side support plate, a rotating hole is opened on the adjusting side support plate, a rotating block is movably connected inside the rotating hole, and one end of the rotating block close to the fixed side support plate is fixedly connected to a spiral sleeve rod spirally sleeved with the adjusting screw rod.

[0007] Optionally, the adjustment assembly further comprises a groove formed on the rotating block, and a rotating handle for manual gripping is fixedly connected to the interior of the groove.

[0008] Optionally, the reminder mechanism includes a telescopic slot opened on the adjustment side support plate and connected to the rotating hole, a return spring is fixedly connected to the inside of the telescopic slot, a reminder protrusion is fixedly connected to the end of the return spring away from the inner wall of the telescopic slot, and a pair of reminder card slots are opened on the rotating block for generating a reminder sound when the reminder protrusion is engaged.

[0009] Optionally, the top of the adjustable side support plate is provided with an arm placement pad for allowing the user to place his arm on the adjustable side support plate to relieve pressure.

[0010] Optionally, one end of the adjusting screw rod away from the fixed side support plate is fixedly connected with a block for limiting the screw sleeve rod from falling out.

[0011] Optionally, a wheelchair backrest for the user to lean on is provided on the electric wheelchair body at one end of the adjustable side support plate and the fixed side support plate.

[0012] Compared with the prior art, the utility model has the following beneficial technical effects:

[0013] The utility model utilizes the coordination of structures such as a fixed side support plate, a rotating mechanism, a baffle mechanism, and a reminder mechanism, and the side support plate can be adjusted according to the user's body size and needs, ensuring that the support strength and position provided by the side support meet the user's requirements, thereby improving comfort. At the same time, the adjusted side support plate can provide good support and stability, helping the user maintain a correct sitting posture, reducing possible shaking or discomfort during movement, thereby improving safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 A schematic structural diagram of an electric wheelchair with adjustable side supports is provided in the utility model;

[0015] Figure 2 for Figure 1 Schematic diagram of some structures;

[0016] Figure 3 for Figure 2 Schematic diagram of the split structure;

[0017] Figure 4 for Figure 3 A schematic diagram of the structure of the middle baffle mechanism;

[0018] Figure 5 for Figure 4 Schematic diagram of the cross-sectional structure.

[0019] Figure numerals: 1. Electric wheelchair body; 11. Wheelchair backrest; 12. Wheelchair seat cushion; 13. Fixed side support plate; 14. Limiting rod; 15. Adjusting screw rod; 16. Block; 2. Adjusting side support plate; 21. Rotating hole; 22. Rotating block; 23. Groove; 24. Rotating handle; 25. Screw sleeve; 26. Reminder slot; 27. Arm rest pad; 3. Telescopic slot; 31. Reset spring; 32. Reminder protrusion. DETAILED DESCRIPTION

[0020] The technical solution of the present utility model will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present utility model, rather than all of the embodiments.

[0021] The components of the embodiments of the present invention generally described and shown in the drawings herein can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention.

[0022] Based on the embodiments of the present utility model, all other embodiments obtained by ordinary technicians in the field without making any creative work shall fall within the scope of protection of the present utility model.

[0023] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0024] It should be noted that the terms "include", "comprises" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0025] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0026] Example

[0027] like Figure 1-5 As shown, the utility model proposes an electric wheelchair with adjustable side support, comprising an electric wheelchair body 1 and a wheelchair cushion 12 arranged on the electric wheelchair body 1, a wheelchair backrest 11 for the user to lean on is arranged at one end of the electric wheelchair body 1 located at the adjustable side support plate 2 and the fixed side support plate 13, a pair of fixed side support plates 13 are arranged on both sides of the top of the wheelchair cushion 12, and also includes: two adjustable side support plates 2, the top of the adjustable side support plates 2 are each provided with an arm placement pad 27 for allowing the user's arms to be placed on the adjustable side support plates 2 to relieve pressure, when the wheelchair is used for a long time, the hands will be subjected to the pressure of the chair handle, and the arm placement pad 27 can disperse this pressure and reduce the discomfort to the hands. At the same time, the appropriate arm placement pad 27 can help the user maintain a correct posture and avoid fatigue or discomfort caused by the hands being suspended in the air for a long time. Installed on the outer surface of the fixed side support plate 13; the adjustment component is installed on the adjustment side support plate 2 and moves along the width direction of the wheelchair cushion 12 to adjust the distance between the two adjustment side support plates 2; the prompt mechanism reminds the user how many circles the rotating mechanism rotates, because each pair of adjustment components is equipped with a rotating block 22, and it is necessary to ensure that the rotating block 22 rotates the same number of circles, and finally ensure that the adjustment side support plate 2 moves the same distance in the direction of the user or the fixed side support plate 13, to avoid the center position between a pair of adjustment side support plates 2 deviating from the center position of the wheelchair cushion 12, and to prevent the user from tipping over when the wheelchair cushion 12 moves off the center. Located on one side of the adjustment component, it assists the adjustment components on the two adjustment side support plates 2 to keep the moving distance consistent.

[0028] Furthermore, a plurality of limit rods 14 are provided on one side of the fixed side support plate 13 close to the adjustable side support plate 2 , and a plurality of spiral sleeve rods 25 corresponding to and movably sleeved with the limit rods 14 are fixedly connected to one side of the adjustable side support plate 2 close to the fixed side support plate 13 .

[0029] The adjusting assembly includes an adjusting screw rod 15 fixedly connected to the fixed side support plate 13, and a clamping block 16 for limiting the escape of the screw sleeve 25 is fixedly connected to the end of the adjusting screw rod 15 away from the fixed side support plate 13. The function of the clamping block 16 is to allow the adjusting side support plate 2 to have a stroke to prevent the adjusting side support plate 2 from escaping beyond the stroke. A rotating hole 21 is provided on the adjusting side support plate 2, and a rotating block 22 is movably connected inside the rotating hole 21. The end of the rotating block 22 close to the fixed side support plate 13 is fixedly connected to the screw sleeve 25 that is spirally sleeved with the adjusting screw rod 15. The adjusting assembly also includes a groove 23 provided on the rotating block 22, and a rotating handle 24 for manual gripping is fixedly connected inside the groove 23.

[0030] Secondly, the prompt mechanism includes a telescopic slot 3 provided on the adjustment side support plate 2 and connected to the rotating hole 21. A reset spring 31 is fixedly connected inside the telescopic slot 3. The reset spring 31 is used to make the reminder protrusion 32 automatically snap into the reminder slot 26 and generate a sound to remind people. The end of the reset spring 31 away from the inner wall of the telescopic slot 3 is fixedly connected to the reminder protrusion 32. The rotating block 22 is provided with a pair of reminder slots 26 for generating a reminder sound after the reminder protrusion 32 is snapped in.

[0031] In this embodiment, when it is necessary to use an electric wheelchair with adjustable side supports, Figure 1 As shown, when the user sits on the wheelchair cushion 12 of the electric wheelchair body 1, the user is tightly stuck by the pair of adjustable side support plates 2, making the user feel very uncomfortable. It is only necessary to rotate the rotating handle 24 to drive the rotating block 22 to rotate inside the rotating hole 21, and the rotating block 22 drives the spiral sleeve 25 to rotate. Since the spiral sleeve 25 is spirally connected to the adjusting spiral rod 15, the spiral sleeve 25 drives the rotating block 22 and the adjustable side support plate 2 to move toward the fixed side support plate 13 that is close to each other, and finally the spacing between the adjustable side support plates 2 becomes larger than before, so that the user will not feel tightly stuck and uncomfortable when sitting on the wheelchair cushion 12.

[0032] When the user sits on the wheelchair cushion 12 of the electric wheelchair body 1 and the adjustable side support plates 2 on both sides are particularly loose, the user only needs to reversely rotate the rotating handle 24 and perform the above-mentioned operation in reverse, which will not be described in detail. Finally, the adjustable side support plates 2 can be moved toward the user, so that when the user sits on the wheelchair cushion 12 between the adjustable side support plates 2, the user will neither feel tightly stuck nor particularly loose, thereby ensuring that the user has a correct sitting posture.

[0033] When the user manually turns the rotating handle 24 to drive the adjustable side support plate 2 to rotate in the rotating hole 21, the reminder protrusion 32 is automatically inserted into the reminder card slot 26 on the rotating block 22 along the telescopic slot 3 by the elastic thrust of the reset spring 31, and the number of rotations of the rotating block 22 can be known. Therefore, the distance that the adjustable side support plate 2 moves toward the user or the fixed side support plate 13 is the same, ensuring that the user is located at the center of the wheelchair cushion 12 when sitting on the wheelchair cushion 12 of the electric wheelchair body 1, and avoiding the user sitting on the electric wheelchair body 1 away from the center of the wheelchair cushion 12, which may cause the wheelchair to tip over.

[0034] The preferred embodiments of the utility model of the above utility model are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to only specific implementation methods. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. An electric wheelchair with adjustable side supports, comprising an electric wheelchair body (1) and a wheelchair cushion (12) arranged on the electric wheelchair body (1), a pair of fixed side support plates (13) being arranged on both sides of the top of the wheelchair cushion (12), characterized in that: Also includes: Two adjustment side support plates (2) mounted on the outer surface of the fixed side support plate (13); An adjustment component, mounted on the adjustment side support plate (2) and movable along the width direction of the wheelchair seat cushion (12) to adjust the distance between the two adjustment side support plates (2); The prompt mechanism is located on one side of the adjustment component and assists the adjustment components on the two adjustment side support plates (2) to maintain consistent moving distances.

2. The electric wheelchair with adjustable side support according to claim 1, characterized in that: A plurality of limit rods (14) are provided on one side of the fixed side support plate (13) close to the adjustable side support plate (2), and a plurality of spiral sleeve rods (25) corresponding to and movably sleeved with the limit rods (14) are fixedly connected to one side of the adjustable side support plate (2) close to the fixed side support plate (13).

3. The electric wheelchair with adjustable side support according to claim 2, characterized in that: The adjustment assembly comprises an adjustment screw rod (15) fixedly connected to a fixed side support plate (13); a rotation hole (21) is provided on the adjustment side support plate (2); a rotation block (22) is movably connected inside the rotation hole (21); and a spiral sleeve rod (25) spirally sleeved with the adjustment screw rod (15) is fixedly connected to one end of the rotation block (22) close to the fixed side support plate (13).

4. The electric wheelchair with adjustable side support according to claim 3, characterized in that: The adjustment assembly further comprises a groove (23) formed on the rotating block (22), and a rotating handle (24) for manual gripping is fixedly connected to the interior of the groove (23).

5. The electric wheelchair with adjustable side support according to claim 3, characterized in that: The prompt mechanism comprises a telescopic slot (3) provided on the adjustment side support plate (2) and connected to the rotating hole (21); a return spring (31) is fixedly connected inside the telescopic slot (3); an end of the return spring (31) away from the inner wall of the telescopic slot (3) is fixedly connected to a reminder protrusion (32); and a pair of reminder card slots (26) are provided on the rotating block (22) for generating a reminder sound after the reminder protrusion (32) is engaged.

6. The electric wheelchair with adjustable side support according to claim 1, characterized in that: The top of the adjustable side support plate (2) is provided with an arm placement pad (27) for allowing the user to place his arm on the adjustable side support plate (2) to relieve pressure.

7. The electric wheelchair with adjustable side support according to claim 3, characterized in that: One end of the adjusting screw rod (15) away from the fixed side support plate (13) is fixedly connected to a clamping block (16) for limiting the escape of the screw sleeve rod (25).

8. The electric wheelchair with adjustable side support according to claim 2, characterized in that: A wheelchair backrest (11) for a user to lean on is provided on one end of the electric wheelchair body (1) located between the adjustment side support plate (2) and the fixed side support plate (13).

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