Electric lifting wheelchair
Through the design of the electric lift wheelchair, the problem of fixed height and lack of exercise assistance is solved, and the effect of highly flexible adjustment and leg and foot exercise is achieved, which improves the convenience and comfort of the user.
Patent Information
- Application Number
- CN202421020899.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-11
- Publication Date
- 2025-01-10
- Estimated Expiration
- 2034-05-11
AI Technical Summary
The existing wheelchair has a fixed height, which cannot meet the height needs of different scenarios, and lacks exercise and support functions for patients with weak legs and feet but still function.
An electric lifting wheelchair is designed, using base assembly, chair frame assembly and walking assembly, and the pipe fittings are driven by a motor drive screw assembly to lift and lower the seat height adjustment, and is equipped with a universal wheel and a rear guide wheel to improve guidance and stability. Sex, built-in memory controller and sponge fill for added comfort.
It realizes flexible adjustment of the wheelchair height, improves user convenience and independence, enhances the exercise effect of legs and feet, and improves the guidance stability and use comfort of the wheelchair.
Smart Images
Figure CN222323783U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of wheelchairs, in particular to an electric lifting wheelchair. Background Art
[0002] Wheelchairs are an important tool for rehabilitation. They are not only a means of transportation for the physically disabled, but more importantly, they enable them to exercise and participate in social activities with the help of wheelchairs. For some people who cannot move independently, wheelchairs are their indispensable means of travel.
[0003] In the process of realizing the utility model, the inventors found that there are at least the following problems in this technology. The wheelchairs currently on the market are basically of fixed height and can only move forward or backward. They cannot adapt to the needs of switching to different heights in different scenarios. At the same time, for patients with weak legs and feet but who have not completely lost the function of their lower limbs, there is an urgent need for a functional wheelchair that uses the legs and feet to assist and exercise. Utility Model Content
[0004] In order to improve the above-mentioned problem that wheelchairs currently on the market are basically of fixed height, can only move forward or backward, cannot adapt to the needs of switching to different heights in different scenes, and cannot exercise the legs and feet, the utility model provides an electric lifting wheelchair.
[0005] The utility model provides an electric lifting wheelchair, which adopts the following technical solutions:
[0006] An electric lifting wheelchair comprises a base assembly, a chair frame assembly, a walking assembly and a seat assembly, the base assembly comprises a bottom frame, a lifting column is arranged inside the bottom frame, a support cover is installed on the top of the lifting column, the chair frame assembly comprises two groups of support columns, the two groups of support columns are respectively installed on both sides of the bottom frame, the tops of the two groups of support columns are connected to connecting rods, and the tops of the two groups of connecting rods are installed with handgrips, the walking assembly comprises two groups of large wheels, the two groups of large wheels are respectively connected to the two groups of connecting rods through rotating shafts, the seat assembly comprises a cushion, the bottom of the cushion is connected to the top of the support cover, and a backrest is installed on the top of the cushion.
[0007] By adopting the above technical solution, the patient sits on the seat cushion, leans his back on the backrest, and presses the control button. At this time, the motor is energized to drive the screw assembly to rotate, and the rotation of the screw assembly drives the pipe fitting to rise and fall, so that the support cover connected to the pipe fitting rises and falls accordingly, and the seat cushion is driven to rise and fall through the support cover, so that the wheelchair can meet the needs of different heights in different scenarios.
[0008] Optionally, the lifting column includes a base box, which is installed on the inner side of the support cover. A motor is installed in the inner cavity of the base box. A screw assembly is provided at the power output end of the motor. The outside of the screw assembly is connected to a pipe fitting, and the bottom of the pipe fitting is connected to the bottom of the base frame.
[0009] By adopting the above technical solution, the motor drives the screw assembly to rotate when working, and the rotation of the screw assembly drives the pipe to rise and fall, so that the seat assembly can be driven up and down through the support cover, which facilitates the adjustment of the height of the wheelchair.
[0010] Optionally, front fork wheels are symmetrically arranged at the front ends of the two groups of support columns, and both groups of front fork wheels are universal wheels.
[0011] By adopting the above technical solution, it is convenient to guide the wheelchair.
[0012] Optionally, rear guide wheels are symmetrically arranged at the rear ends of the two groups of support columns.
[0013] By adopting the technical solution, the wheelchair is prevented from tipping over backwards.
[0014] Optionally, armrests are connected to both sides of the backrest.
[0015] By adopting the above technical solution, it is convenient for users to put their hands on the armrests, thereby improving comfort.
[0016] Optionally, the inner cavities of the seat cushion and the backrest are filled with sponge.
[0017] By adopting the above technical solution, the comfort of the user when using the wheelchair is increased.
[0018] Optionally, the surfaces of the ends of the two groups of gripping rods away from the base frame are both connected with rubber sleeves.
[0019] By adopting the above technical solution, it is convenient for nursing staff to push the handle by holding it, and the rubber pad has good anti-slip ability, which can avoid slipping of the hands during the holding process.
[0020] Optionally, the lifting column and its matching controller have a memory function and can store height positions.
[0021] By adopting the above technical solution, different height positions can be stored through the hand controller. When you need to reach the height position next time, you can press the memory button on the hand controller, and the wheelchair will rise and fall to the preset position, which is convenient for operation.
[0022] In summary, the present invention has at least one of the following beneficial effects:
[0023] (1) Through the coordinated arrangement of the base frame, support cover, motor, base box, screw assembly and pipe fittings, the seat assembly can be driven to rise and fall, so that the wheelchair can meet the requirements of different heights in different scenes, thereby improving the convenience, independence and autonomy of the user.
[0024] (2) The two sets of front fork wheels are universal wheels, which facilitates the guidance of the wheelchair. The two sets of rear guide wheels prevent the wheelchair from tipping over, thereby improving the practicality of the wheelchair. BRIEF DESCRIPTION OF THE DRAWINGS
[0025] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.
[0026] Figure 1 It is a schematic diagram of the overall structure of the utility model;
[0027] Figure 2 It is a schematic diagram of the explosion structure of the utility model;
[0028] Figure 3 This is a schematic diagram of the lifting column structure of the utility model;
[0029] Figure 4 It is a side view structural schematic diagram of the utility model;
[0030] Figure 5 This is a schematic diagram of the main structure of the utility model;
[0031] Figure 6 It is a schematic diagram of the top structure of the utility model.
[0032] In the figure: 1. Base assembly; 11. Base frame; 12. Support cover; 13. Lifting column; 131. Motor; 132. Bottom box; 133. Screw assembly; 134. Pipe fitting; 2. Chair frame assembly; 21. Support column; 22. Handle bar; 23. Connecting rod; 3. Walking assembly; 31. Big wheel; 32. Front fork wheel; 33. Rear guide wheel; 4. Seat assembly; 41. Cushion; 42. Backrest; 43. Armrest. DETAILED DESCRIPTION
[0033] The following is combined with Figure 1-6 The utility model is described in further detail.
[0034] Please refer to the attached figure in the instruction manual Figure 1 , Figure 2 and Figure 3The utility model provides an embodiment: an electric lifting wheelchair, comprising a base assembly 1, a chair frame assembly 2, a walking assembly 3 and a seat assembly 4. The base assembly 1 comprises a base frame 11, a lifting column 13 is arranged inside the base frame 11, a support cover 12 is installed on the top of the lifting column 13, the lifting column 13 comprises a bottom box 132, the bottom box 132 is installed on the inner side of the support cover 12, a motor 131 is installed in the inner cavity of the bottom box 132, a screw rod assembly 133 is arranged at the power output end of the motor 131, a pipe 134 is connected to the outside of the screw rod assembly 133, the bottom of the pipe 134 is connected to the bottom of the base frame 11, the output end of the motor 131 is connected to a controller through wires, and the output end of the controller is wirelessly connected or wired to a hand controller. When the motor 131 is working, the screw rod assembly 133 is driven to rotate, and the screw rod assembly 133 rotates to drive the pipe 134 to rise and fall, so that the seat assembly 4 can be driven to move up and down through the support cover 12, so as to facilitate the adjustment of the height of the wheelchair. The controller matched with the lifting column 13 has a memory function, which can store the height position. Different height positions can be set and stored through the hand controller. When you need to reach the height position next time, you can press the memory button on the hand controller, and the wheelchair will rise and fall to the preset position, which is convenient for operation.
[0035] Please refer to the attached figure in the instruction manual Figure 2 , Figure 4 and Figure 5 The chair frame assembly 2 includes two groups of support columns 21, which are respectively threadedly mounted on both sides of the base frame 11, and the rear ends of the two groups of support columns 21 are symmetrically provided with rear guide wheels 33 to prevent the wheelchair from tipping backwards.
[0036] Please refer to the attached figure in the instruction manual Figure 2 , Figure 4 and Figure 5 The tops of the two groups of support columns 21 are vertically connected with connecting rods 23, the tops of the two groups of connecting rods 23 are installed with handgrips 22, and the front ends of the two groups of support columns 21 are symmetrically provided with front fork wheels 32, and the two groups of front fork wheels 32 are universal wheels, which is convenient for guiding the wheelchair.
[0037] Please refer to the attached figure in the instruction manual Figure 2 and Figure 4 The surfaces of the two sets of handgrips 22 at one end away from the bottom frame 11 are fixedly connected with rubber sleeves. It is convenient for the nursing staff to hold the handgrips 22 for pushing, and the rubber pad has good anti-slip ability, so as to avoid the situation of hand slipping during the holding process.
[0038] Please refer to the attached figure in the instruction manual Figure 2 , Figure 5 and Figure 6The walking assembly 3 includes two sets of large wheels 31, which are respectively connected to two sets of connecting rods 23 through rotating shafts. The seat assembly 4 includes a cushion 41, the bottom of the cushion 41 is connected to the top of the support cover 12, and a backrest 42 is installed on the top of the cushion 41. The inner cavities of the cushion 41 and the backrest 42 are filled with sponges. The comfort of the user when using the wheelchair is increased. Both sides of the backrest 42 are fixedly connected with armrests 43. It is convenient for the user to put his hands on the armrests 43 to improve the comfort.
[0039] Working principle: When using the wheelchair, the patient sits on the seat cushion 41, leans his back on the backrest 42, and puts his hands on the armrests 43. By pressing the button on the hand controller, the motor 131 is powered on to drive the screw assembly 133 to rotate. The rotation of the screw assembly 133 drives the pipe 134 to rise and fall, so that the support cover 12 connected to the pipe 134 rises and falls accordingly, and the seat cushion 41 is driven to rise and fall through the support cover 12. The controller has a memory function, and different height positions can be set and stored through the hand controller. When you need to reach the height position next time, you can press the memory button on the hand controller, and the wheelchair will rise and fall to the preset position, which is convenient for operation, so that the wheelchair can meet the needs of different heights in different scenes.
[0040] When the user moves the wheelchair by himself, he can place his feet on the ground to adjust the height of the wheelchair to a proper position with legs stretched out, turn the large wheel 31 with his hands and paddle the ground with his feet to move the wheelchair. The leg and foot assistance here can exercise the leg and foot functions and prevent muscle atrophy.
[0041] When a caregiver is needed to push the wheelchair, the caregiver holds the handshake handle 22 and uses the large wheel 31 to push the wheelchair. The provision of the rubber pad increases the resistance between the caregiver's hand and the handshake handle 22. The provision of the front fork wheel 32 facilitates the guidance of the wheelchair. The provision of the rear guide wheel 33 prevents the wheelchair from tipping over backwards, thereby improving the practicality and safety of the wheelchair.
[0042] The above are all preferred embodiments of the present utility model, and are not intended to limit the protection scope of the present utility model. Therefore, any equivalent changes made based on the structure, shape, and principle of the present utility model should be included in the protection scope of the present utility model.
Claims
1. An electric lifting wheelchair, comprising a base assembly (1), a chair frame assembly (2), a walking assembly (3) and a seat assembly (4), characterized in that: The base assembly (1) comprises a base frame (11), wherein a lifting column (13) is arranged inside the base frame (11), and a support cover (12) is installed on the top of the lifting column (13); the chair frame assembly (2) comprises two groups of support columns (21), wherein the two groups of support columns (21) are respectively installed on both sides of the base frame (11), and the tops of the two groups of support columns (21) are connected to connecting rods (23), and the tops of the two groups of connecting rods (23) are respectively installed with handgrips (22); the walking assembly (3) comprises two groups of large wheels (31), and the two groups of large wheels (31) are respectively connected to the two groups of connecting rods (23) through rotating shafts; the chair seat assembly (4) comprises a seat cushion (41), wherein the bottom of the seat cushion (41) is connected to the top of the support cover (12), and the top of the seat cushion (41) is installed with a backrest (42).
2. The electric lifting wheelchair according to claim 1, characterized in that: The lifting column (13) comprises a bottom box (132), the bottom box (132) being mounted on the inner side of the support cover (12), a motor (131) being mounted in the inner cavity of the bottom box (132), a screw assembly (133) being arranged at the power output end of the motor (131), a pipe fitting (134) being connected to the outside of the screw assembly (133), and the bottom of the pipe fitting (134) being connected to the bottom of the base frame (11).
3. The electric lifting wheelchair according to claim 1, characterized in that: Front ends of the two groups of support columns (21) are symmetrically provided with front fork wheels (32), and the two groups of front fork wheels (32) are universal wheels.
4. The electric lifting wheelchair according to claim 1, characterized in that: Rear guide wheels (33) are symmetrically arranged at the rear ends of the two groups of support columns (21).
5. The electric lifting wheelchair according to claim 1, characterized in that: Armrests (43) are connected to both sides of the backrest (42).
6. The electric lifting wheelchair according to claim 1, characterized in that: The inner cavities of the seat cushion (41) and the backrest (42) are both filled with sponge.
7. The electric lifting wheelchair according to claim 1, characterized in that: The surfaces of the ends of the two groups of gripping rods (22) away from the base frame (11) are both connected with rubber sleeves.
8. The electric lifting wheelchair according to claim 1, characterized in that: The lifting column (13) and the controller matched therewith have a memory function and can store the height position.