Adjustable wheelchair
By designing an adjustable wheelchair, using a lifting mechanism and an expandable flat lathe structure, the problem of hemiplegia patients losing balance and falling during the transfer process is solved, and a safer and more convenient transfer process is achieved.
Patent Information
- Application Number
- CN202421933997.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-09
- Publication Date
- 2025-06-10
- Estimated Expiration
- 2034-08-09
AI Technical Summary
Patients with hemiplegia and other mobility difficulties are prone to losing balance and falling when they are transferred from bed to wheelchair.
An adjustable wheelchair was designed, and the seat plate was lifted to the same height as the hospital bed through a lifting mechanism and expanded into a flat lathe structure to facilitate patient transfer. At the same time, a backrest, handrail and fixture were installed to improve stability.
It effectively reduces the risk of patients losing balance during the metastasis and leads to fall, improving the safety and convenience of metastasis.
Smart Images
Figure CN222955621U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of medical devices, and specifically relates to an adjustable wheelchair. Background Art
[0002] A wheelchair is a tool to assist people with limited mobility. It usually consists of a seat, two large wheels and two small wheels, and is designed to allow users to sit on it and move by pushing the wheels or using an electric motor. Wheelchairs are widely used to help people with limited mobility due to illness, injury or physical disability improve their quality of life.
[0003] For patients with limited mobility such as hemiplegia, before using the toilet or going out, the patient needs to transfer from the bed to the wheelchair. Usually, it is carried by manual lifting or getting out of bed independently. Hemiplegic patients may have impaired motor function on one side of the body, affecting balance and coordination ability, resulting in loss of balance during the transfer and falling. Content of the Utility Model
[0004] The purpose of the utility model is to provide an adjustable wheelchair that is convenient for patients to transfer from the bed to the wheelchair and reduces the risk of falling.
[0005] To achieve the above purpose, the technical solution of the utility model is as follows.
[0006] An adjustable wheelchair includes two brackets. The top of the two brackets is jointly installed with a top plate. A seat plate is arranged on the upper side of the top plate. An elevating mechanism capable of driving the seat plate to lift and lower is arranged at the bottom of the top plate. A backrest is rotatably installed on the side surface of the seat plate. A plurality of slots are opened on the outer surface of the seat plate. An inner groove is opened inside the backrest. An L-shaped insertion rod is arranged inside the inner groove. The end of the L-shaped insertion rod is adapted to the slot. Two installation grooves are opened on both sides of the upper surface of the seat plate. Armrests are inserted into the two installation grooves. A first fixing bolt for fixing the armrest is installed on the side surface of the seat plate.
[0007] Thus, by using the elevating mechanism to raise the seat plate to the same height as the hospital bed, then flipping the backrest to a horizontal state, and then removing the armrest on the side close to the hospital bed, the wheelchair is unfolded into a flat hospital bed structure. Then, the unfolded wheelchair is attached to the hospital bed, so that it is convenient for the patient to transfer from the hospital bed to the wheelchair, reducing the situation of losing balance and falling during the transfer.
[0008] Furthermore, the elevating mechanism includes a connecting plate installed between the two brackets. A motor is installed on the upper surface of the connecting plate. The end of the output shaft of the motor is connected with a threaded rod. Support columns are installed at the four corners of the lower surface of the seat plate. The ends of the four support columns are jointly installed with an I-shaped plate, and the threaded rod passes through the inside of the I-shaped plate and is threadedly connected with it.
[0009] When starting the motor, its output shaft drives the threaded rod to rotate. Since the four corners of the I-shaped plate are limited by the support columns, the I-shaped plate can be driven to rise and fall when the threaded rod rotates, and through the connection of the support columns, the purpose of driving the seat plate to rise and fall is achieved.
[0010] Furthermore, a sleeve plate is rotatably installed on the outer surface of the backrest. An activity plate is inserted into the sleeve plate. A support plate is installed at the bottom of the activity plate. A plurality of screw holes are formed on the outer surface of the activity plate. A second fixing bolt adapted to the screw holes is installed on the outer surface of the sleeve plate.
[0011] After the backrest is flipped to the horizontal state, the sleeve plate can be rotated to the vertical state, and then the activity plate is pulled out of the sleeve plate to support the support plate on the ground. Then, the second fixing bolt is screwed into the screw hole for fixation, so that the backrest can obtain stable support ability and improve the stability of the wheelchair after unfolding.
[0012] Furthermore, a sliding rod is installed inside the inner groove, and the sliding rod penetrates through the inside of the L-shaped insertion rod. A spring is sleeved on the outer surface of the sliding rod, and both ends of the spring are abutted against the inner wall of the inner groove and the L-shaped insertion rod respectively.
[0013] The spring applies a continuous thrust to the L-shaped insertion rod, so that the L-shaped insertion rod can be stably inserted into the insertion slot to avoid separation and improve safety.
[0014] Furthermore, a pressure sensor is arranged inside the seat plate, and a display screen is arranged on the outer surface of the seat plate. The display screen is electrically connected to the pressure sensor.
[0015] Through the arrangement of the pressure sensor, the patient can be weighed, and the value is displayed on the display screen, avoiding the cumbersome operation and possible harm caused by transferring the patient to a weighing scale for weighing.
[0016] Furthermore, magnet sheets that magnetically adsorb each other are arranged between the outer surfaces of the sleeve plate and the backrest.
[0017] Through the arrangement of the magnet sheets, the sleeve plate can be firmly adsorbed on the outer surface of the backrest and is convenient for separation. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 is one of the three-dimensional structural schematic diagrams of the present utility model;
[0019] Figure 2 is the second three-dimensional structural schematic diagram of the present utility model;
[0020] Figure 3 is the structural schematic diagram of the lifting mechanism in the present utility model;
[0021] Figure 4 is Figure 1Enlarged schematic diagram of A;
[0022] Figure 5 Partial cross-sectional structure schematic diagram of the backrest and seat board in the present utility model;
[0023] Figure 6 is Figure 5 Enlarged schematic diagram of B in;
[0024] Figure 7 is Figure 5 Enlarged schematic diagram of C in.
[0025] In the figure: 100, bracket; 101, top plate; 102, seat board; 103, backrest; 104, slot; 105, inner groove; 106, L-shaped insertion rod; 200, lifting mechanism; 201, connecting plate; 202, motor; 203, threaded rod; 204, support column; 205, I-shaped plate; 300, installation groove; 301, armrest; 302, first fixing bolt; 400, sleeve plate; 401, movable plate; 402, support plate; 403, screw hole; 404, second fixing bolt; 500, sliding rod; 501, spring; 600, display screen. Specific implementation mode
[0026] The present utility model will be described in detail below with reference to the accompanying drawings.
[0027] As Figures 1-7 shown, an adjustable wheelchair includes two brackets 100. The tops of the two brackets 100 are jointly provided with a top plate 101. A seat board 102 is arranged on the upper side of the top plate 101. A lifting mechanism 200 capable of driving the seat board 102 to lift is arranged at the bottom of the top plate 101. The side surface of the seat board 102 is rotatably provided with a backrest 103. A plurality of slots 104 are opened on the outer surface of the seat board 102. An inner groove 105 is opened inside the backrest 103. An L-shaped insertion rod 106 is arranged inside the inner groove 105. The end of the L-shaped insertion rod 106 is adapted to the slot 104. Two installation grooves 300 are opened on both sides of the upper surface of the seat board 102. An armrest 301 is inserted into the two installation grooves 300. A first fixing bolt 302 for fixing the armrest 301 is arranged on the side surface of the seat board 102.
[0028] When it is necessary to transfer the patient to this wheelchair, first raise the seat board 102 to the same height as the hospital bed through the lifting mechanism 200, then lock the wheels of this wheelchair, and then pull up the L-shaped insertion rod 106 so that its end is withdrawn from the slot 104. At this time, the backrest 103 loses its fixation. After flipping the backrest 103 to a horizontal state, insert the L-shaped insertion rod 106 back into the slot 104 to fix it. Then turn the first fixing bolt 302 to remove the armrest 301 on the side close to the hospital bed. At this time, this wheelchair is unfolded into a flat-bed structure, so that it is convenient for the patient to transfer from the hospital bed to this wheelchair, reducing the risk of falling due to loss of balance during the transfer process.
[0029] Specifically, the lifting mechanism 200 includes a connecting plate 201 installed between two brackets 100. The upper surface of the connecting plate 201 is equipped with a motor 202. The end of the output shaft of the motor 202 is connected to a threaded rod 203. Support columns 204 are installed at the four corners of the lower surface of the seat board 102. The ends of the four support columns 204 are jointly installed with an I-shaped plate 205, and the threaded rod 203 passes through the inside of the I-shaped plate 205 and is threadedly connected thereto. When the motor 202 is started, its output shaft drives the threaded rod 203 to rotate. Since the four corners of the I-shaped plate 205 are limited by the support columns 204, the I-shaped plate 205 can be driven to rise and fall when the threaded rod 203 rotates, and through the connection of the support columns 204, the purpose of driving the seat board 102 to rise and fall is achieved.
[0030] Specifically, a sleeve plate 400 is rotatably installed on the outer surface of the backrest 103. An activity plate 401 is inserted into the inside of the sleeve plate 400. A support plate 402 is installed at the bottom of the activity plate 401. A plurality of screw holes 403 are formed on the outer surface of the activity plate 401. The outer surface of the sleeve plate 400 is equipped with a second fixing bolt 404 adapted to the screw holes 403. After the backrest 103 is flipped to a horizontal state, the sleeve plate 400 can be rotated to a vertical state, and then the activity plate 401 is withdrawn from the sleeve plate 400 to support the support plate 402 on the ground. Then, the second fixing bolt 404 is screwed into the screw holes 403 for fixation, so that the backrest 103 can obtain stable support ability and improve the stability of this wheelchair after unfolding.
[0031] Specifically, a sliding rod 500 is installed inside the inner groove 105, and the sliding rod 500 passes through the inside of the L-shaped insertion rod 106. A spring 501 is sleeved on the outer surface of the sliding rod 500. The two ends of the spring 501 are respectively abutted against the inner wall of the inner groove 105 and the L-shaped insertion rod 106. The spring 501 exerts a continuous thrust on the L-shaped insertion rod 106, so that the L-shaped insertion rod 106 can be stably inserted into the slot 104 to avoid separation and improve safety.
[0032] Specifically, a pressure sensor is provided inside the seat board 102, and a display screen 600 is provided on the outer surface of the seat board 102. The display screen 600 is electrically connected to the pressure sensor. Through the setting of the pressure sensor, the patient can be weighed, and the value can be displayed on the display screen 600, avoiding the cumbersome operation and possible harm caused by transferring the patient to a weighing scale for weighing.
[0033] Specifically, magnet sheets that magnetically adsorb each other are provided between the outer surface of the sleeve board 400 and the backrest 103. Through the setting of the magnet sheets, the sleeve board 400 can be firmly adsorbed on the outer surface of the backrest 103 and is convenient for separation.
[0034] The above is a detailed description of the present utility model in combination with specific embodiments. It cannot be determined that the specific implementation manners of the present utility model are only limited to these descriptions. For those of ordinary skill in the technical field to which the present utility model belongs, without departing from the concept of the present utility model, several equivalent substitutions or obvious modifications are made, and the performance or use is the same, and all should be regarded as belonging to the patent protection scope determined by the claims submitted for the present utility model.
Claims
1. An adjustable wheelchair, comprising two brackets (100), characterized in that: A top plate (101) is installed on the top of the two brackets (100); a seat plate (102) is arranged on the upper side of the top plate (101); and a lifting mechanism (200) capable of driving the seat plate (102) to move up and down is arranged on the bottom of the top plate (101); A backrest (103) is rotatably mounted on the side surface of the seat plate (102); a plurality of slots (104) are provided on the outer surface of the seat plate (102); an inner groove (105) is provided inside the backrest (103); an L-shaped insertion rod (106) is provided inside the inner groove (105); and an end of the L-shaped insertion rod (106) is adapted to fit in the slot (104); Two installation grooves (300) are provided on both sides of the upper surface of the seat plate (102), armrests (301) are inserted into the two installation grooves (300), and first fixing bolts (302) for fixing the armrests (301) are installed on the side surface of the seat plate (102).
2. An adjustable wheelchair according to claim 1, characterized in that: The lifting mechanism (200) comprises a connecting plate (201) installed between the two brackets (100); a motor (202) is installed on the upper surface of the connecting plate (201); the end of the output shaft of the motor (202) is connected to a threaded rod (203); support columns (204) are installed at the four corners of the lower surface of the seat plate (102); an I-shaped plate (205) is installed at the ends of the four support columns (204); and the threaded rod (203) passes through the interior of the I-shaped plate (205) and is threadedly connected thereto.
3. An adjustable wheelchair according to claim 2, characterized in that: A sleeve plate (400) is rotatably mounted on the outer surface of the backrest (103), a movable plate (401) is inserted into the interior of the sleeve plate (400), a support plate (402) is mounted on the bottom of the movable plate (401), a plurality of screw holes (403) are formed on the outer surface of the movable plate (401), and second fixing bolts (404) matched with the screw holes (403) are mounted on the outer surface of the sleeve plate (400).
4. The adjustable wheelchair according to claim 3, characterized in that: A sliding rod (500) is installed inside the inner groove (105), and the sliding rod (500) passes through the inside of the L-shaped insertion rod (106). A spring (501) is sleeved on the outer surface of the sliding rod (500), and two ends of the spring (501) are respectively in contact with the inner wall of the inner groove (105) and the L-shaped insertion rod (106).
5. The adjustable wheelchair according to claim 4, characterized in that: A pressure sensor is arranged inside the seat board (102), and a display screen (600) is arranged on the outer surface of the seat board (102), wherein the display screen (600) is electrically connected to the pressure sensor.
6. The adjustable wheelchair according to claim 5, characterized in that: A magnet sheet that is magnetically attracted to each other is provided between the sleeve plate (400) and the outer surface of the backrest (103).