Leveling electric wheelchair for middle-aged and elderly people
By incorporating a buffer structure with components such as mounting bases, pivots, and locking bolts on the adjustable electric wheelchair, the problem of lack of impact buffer at the front of the wheelchair is solved, achieving effective collision buffering and structural stability, and reducing user injury.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-26
- Publication Date
- 2026-03-24
AI Technical Summary
Existing adjustable electric wheelchairs for middle-aged and elderly people lack impact buffer structures at the front end during use. This means that if the user operates the wheelchair incorrectly, it cannot buffer the impact force, which can easily cause the wheelchair structure to loosen and cause injury to the user.
A buffer structure was designed, comprising a mounting base, mounting groove, rotating shaft, locking bolt, sleeve, telescopic rod, damping spring, and rubber block. The rotation of the rotating shaft allows the telescopic rod to function as a buffer in a horizontal state. The damping spring and rubber block buffer the impact force. The rotating shaft can be retracted into the connecting rod for easy storage.
It effectively cushions the impact force at the front of the wheelchair, reducing physical injury to the user, and the cushioning structure is easy to store when not in use, preventing the wheelchair structure from becoming loose.
Smart Images
Figure CN224023787U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the field of wheelchair, especially to the adjustable flat electric wheelchair for the middle-aged and old. BACKGROUND
[0002] The adjustable flat electric wheelchair is a kind of electric wheelchair with multiple adjustment functions, when using on climbing or bumpy road surface, can rely on the operation of electric push rod, make seat always keep horizontal state, improve the comfort, meet the needs of different users, help to carry out rehabilitation training.
[0003] The existing adjustable flat electric wheelchair for the middle-aged and old does not have impact buffering structure at wheelchair front end when using, cannot buffer impact intensity when the front end of wheelchair collides due to improper operation of user, is prone to cause wheelchair structure loosening, causes the problem of damage to user.
[0004] Therefore, in view of the above-mentioned problems of the existing adjustable flat electric wheelchair for the middle-aged and old, which does not have impact buffering structure at the front end of the wheelchair when in use, and cannot buffer the impact intensity when the front end of the wheelchair collides due to improper operation of the user, and is prone to cause the wheelchair structure to loosen and cause damage to the user, an adjustable flat electric wheelchair for the middle-aged and old can be designed, which can install the rotating shaft by setting the mounting seat and the mounting groove, and can rotate the telescopic rod to the horizontal state by the rotating shaft during use, so that the damping spring and the rubber block can play a certain buffering role when the front side of the wheelchair is collided, to avoid the impact directly acting on the wheelchair, thereby reducing the physical damage to the user, and when not in use, the rotating shaft can be set to facilitate rotating the entire buffering structure to be attached to the connecting rod, thereby facilitating storage. SUMMARY
[0005] In order to overcome the problem that the existing adjustable flat electric wheelchair for the middle-aged and old does not have impact buffering structure at the front end of the wheelchair when in use, and cannot buffer the impact intensity when the front end of the wheelchair collides due to improper operation of the user, and is prone to cause the wheelchair structure to loosen and cause damage to the user.
[0006] The utility model discloses a technical scheme for: the adjustable electric wheelchair of middle-aged and old people, including bottom support, still including mounting seat, installation groove, pivot, locking bolt, sleeve, telescopic link, damping spring and rubber block, the upper end of bottom support is provided with leveling assembly, the upper end of leveling assembly is connected with upper support, and the upper side of upper support is provided with seat, and the rear side of bottom support and upper support is connected with push handle, and the front end of upper support is provided with two symmetrical connecting rods, and the outer surface of connecting rod is provided with mounting seat in the lower position, and the upper surface front side position of mounting seat is provided with installation groove, and the inner side of installation groove is rotatably connected with pivot, and the left and right two ends of pivot are connected with locking bolt and are penetrated through mounting seat, and the upper side of the outer surface of pivot is welded with sleeve, and one end of telescopic link is connected with sleeve in the inside thread, and one end of damping spring is installed to the other end of telescopic link, and the other end of damping spring is installed with rubber block.
[0007] Preferably, by setting the mounting seat and the installation groove, the pivot can be installed, and in use, the telescopic link can be rotated to a horizontal state through the pivot, so that when the wheelchair front side is impacted, the damping spring and the rubber block can play a certain buffering role, avoiding direct impact on the wheelchair, thereby reducing the physical damage to the user, and when not in use, the pivot can facilitate rotating the entire buffering structure to be attached to the connecting rod, thereby facilitating storage, thereby solving the problem that the existing adjustable electric wheelchair for middle-aged and old people does not have an impact buffering structure at the front end of the wheelchair in use, and when the user operates improperly, the impact intensity cannot be buffered when the front end of the wheelchair is impacted, which can easily cause the wheelchair structure to loosen and cause damage to the user.
[0008] As a preferred, the leveling assembly includes a first ball seat, an electric push rod, a second ball seat, a hinged rod and a control box; four symmetrical first ball seats are installed on the outer surface of the support rod of the bottom support, the upper surface of the first ball seat is provided with an electric push rod, the telescopic end of the electric push rod is provided with a second ball seat, the second ball seat is connected with the upper support, the hinged rod is installed on the upper surface of the bottom support in the middle position, the hinged rod is rotatably connected with the upper support, the control box is installed on the rear side of the upper surface of the bottom support, the level is embedded in the seat, and the control box, the electric push rod and the level are electrically connected.
[0009] As a preferred, the outer surface of the bottom support is rotatably connected with two symmetrical drive wheels, and the outer surface of the bottom support is rotatably connected with two symmetrical universal wheels.
[0010] As a preferred, the bottom surface of the bottom support is provided with an article rack at the rear side position, and a plurality of through holes are formed in the upper surface of the article rack.
[0011] As a preferred, the left and right side surfaces of the bottom support are rotatably connected with a rotating rod near the drive wheel, a handle is arranged on the upper side of the outer surface of the rotating rod, and a brake pad is installed on the front side of the outer surface of the rotating rod.
[0012] Preferably, a foot rest is mounted at the end of the connecting rod away from the upper support, and the upper surface of the foot rest is provided with a plurality of rubber sheets.
[0013] Preferably, the inside of the seat is filled with memory cotton, and the outside of the seat is wrapped with fabric.
[0014] The utility model discloses the beneficial effects of:
[0015] 1. The installation seat and the installation groove are arranged, the rotating shaft is installed, the telescopic rod can be rotated to the horizontal state through the rotating shaft in use, the damping spring and the rubber block can play a certain buffering role when the front side of the wheelchair is collided, the impact is avoided from directly acting on the wheelchair, the physical damage to the user is reduced, when not in use, the rotating shaft can be conveniently rotated to the connecting rod, and the buffering structure is conveniently stored, so that the existing adjustable flat electric wheelchair for the middle-aged and the old does not have an impact buffering structure at the front end of the wheelchair in use, the impact intensity cannot be buffered when the user operates improperly and the front end of the wheelchair is collided, and the wheelchair structure is prone to loosening, which causes damage to the user. BRIEF DESCRIPTION OF DRAWINGS
[0016] Figure 1 The utility model discloses a three-dimensional structure schematic diagram of the adjustable flat electric wheelchair for the middle-aged and the old is shown.
[0017] Figure 2 The utility model discloses a three-dimensional structure schematic diagram of the mounting seat of the adjustable flat electric wheelchair for the middle-aged and the old is shown.
[0018] Figure 3 The utility model discloses a three-dimensional structure schematic diagram of the leveling assembly of the adjustable flat electric wheelchair for the middle-aged and the old is shown.
[0019] Figure 4 The utility model discloses a three-dimensional structure schematic diagram of the brake pad of the adjustable flat electric wheelchair for the middle-aged and the old is shown.
[0020] The figure mark explanation: 1, bottom support;201, first ball seat;202, electric push rod;203, second ball seat;204, articulated rod;205, control box;3, upper support;4, seat;5, push handle;6, connecting rod;7, mounting seat;8, installation groove;9, rotating shaft;10, locking bolt;11, sleeve;12, telescopic rod;13, damping spring;14, rubber block;15, driving wheel;16, universal wheel;17, article rack;18, through hole;19, rotating rod;20, handle;21, brake pad;22, foot rest;23, rubber sheet. DETAILED DESCRIPTION
[0021] The utility model will be further explained in connection with the drawings and examples.
[0022] Please refer to Figures 1-4 The utility model provides an embodiment: middle and old age use adjustable electric wheelchair, including bottom support 1, still including mounting seat 7, installation groove 8, pivot 9, locking bolt 10, sleeve 11, telescopic link 12, damping spring 13 and rubber block 14, the upper end of bottom support 1 is provided with leveling assembly, the upper end of leveling assembly is connected with upper support 3, the upper side of upper support 3 is installed with seat 4, the rear side of bottom support 1 and upper support 3 is connected with push handle 5, the front end of upper support 3 is installed with two symmetrical connecting rods 6, the outer surface of connecting rod 6 is equipped with mounting seat 7 in lower position, the upper surface of mounting seat 7 is equipped with installation groove 8 in front position, the inner side of installation groove 8 is rotatably connected with pivot 9, the left and right two ends of pivot 9 are connected with locking bolt 10 and are equipped with sleeve 11 on the upper side of the outer surface of pivot 9, one end of telescopic link 12 is screw connected in the inside of sleeve 11, the other end of telescopic link 12 is installed with one end of damping spring 13, the other end of damping spring 13 is installed with rubber block 14, through the setting mounting seat 7 with installation groove 8, can install pivot 9, when using, can rotate telescopic link 12 to horizontal state through pivot 9, damping spring 13 and rubber block 14 can play certain buffering effect when the wheelchair front side is impacted, avoid the impact direct action on wheelchair, thereby reduce the physical damage to user, when not using, the setting of pivot 9 can facilitate the rotation of entire buffer structure to adhere with connecting rod 6, like this facilitate storage.
[0023] Please refer to Figures 1-4In this embodiment, the leveling assembly includes a first ball seat 201, an electric push rod 202, a second ball seat 203, a hinge rod 204, and a control box 205. Four symmetrical first ball seats 201 are mounted on the outer surface of the support rod of the bottom bracket 1. An electric push rod 202 is mounted on the upper surface of the first ball seat 201. A second ball seat 203 is mounted on the telescopic end of the electric push rod 202 and is connected to the upper bracket 3. A hinge rod 204 is mounted in the middle of the upper surface of the bottom bracket 1 and is rotatably connected to the upper bracket 3. A control box 205 is mounted on the rear side of the upper surface of the bottom bracket 1. A level is embedded inside the seat 4. The control box 205, the electric push rod 202, and the level are electrically connected. By embedding a level inside the seat 4, the level status of the seat 4 can be monitored in real time. When climbing a slope, the control box 205 will... Four electric push rods 202 are controlled to operate independently, thereby adjusting the horizontal state of the upper support 3 in cooperation with the first ball seat 201, the second ball seat 203, and the hinge rod 204, ensuring that the seat 4 always remains horizontal, thus improving the user's comfort. Two symmetrical drive wheels 15 are rotatably connected to the rear side of the outer surface of the bottom support 1, and two symmetrical caster wheels 16 are rotatably connected to the front side of the outer surface of the bottom support 1. By setting the caster wheels 16, it is easier for the wheelchair to make some turning movements, improving maneuverability. A shelf 17 is installed on the rear side of the bottom surface of the bottom support 1. Several through holes 18 are opened on the upper surface of the shelf 17. By setting the shelf 17, it is easy to place some items on it, improving the storage capacity of the wheelchair. The through holes 18 can prevent water accumulation in the shelf 17, improving practicality.
[0024] Please see Figures 1-4 In this embodiment, rotating rods 19 are rotatably connected to the left and right sides of the bottom support 1 near the drive wheel 15. A handle 20 is provided on the upper side of the outer surface of the rotating rod 19, and a brake pad 21 is installed on the front side of the outer surface of the rotating rod 19. By providing the handle 20, when the wheelchair needs to be stopped, the handle 20 can be pushed forward, causing the rotating rod 19 to rotate, thereby making the brake pad 21 contact the tire of the drive wheel 15, thus achieving braking. A footrest 22 is installed at the end of the connecting rod 6 away from the upper support 3, and the upper surface of the footrest 22 is provided with several... A rubber pad 23, along with a footrest 22, provides support for the user's feet. The rubber pad 23 increases friction with the sole of the shoe, thus preventing slippage. The seat 4 is filled with memory foam, and the outer layer is covered with fabric. Filling the seat 4 with memory foam improves its comfort and durability, while also remembering the body's contours and providing good support. The fabric covering the outer side of the seat 4 is durable and has good ventilation and heat dissipation, improving the user's comfort during long periods of sitting.
[0025] In operation, by embedding the level in the interior of the seat 4, the horizontal state of the seat 4 can be monitored in real time, and the control box 205 controls the four electric push rods 202 to operate respectively to adjust the horizontal state of the upper support 3 under the cooperation of the first ball seat 201, the second ball seat 203 and the articulated rod 204, so that the seat 4 always remains horizontal, thereby improving the comfort of the user. By providing the universal wheel 16, the wheelchair can make some turning actions, improving the controllability. By providing the article rack 17, some articles can be placed on the upper side, improving the storage capacity of the wheelchair. The through hole 18 can avoid the problem of water accumulation in the article rack 17, improving the practicability. By providing the handle 20, when the wheelchair needs to be stopped, the handle 20 can be pushed forward, and the handle 20 drives the rotating rod 19 to rotate, so that the brake pad 21 is attached to the tire of the driving wheel 15, thereby achieving braking. By providing the foot support 22, the user's feet can be supported. The rubber sheet 23 can increase the friction between the shoe sole, thereby avoiding the phenomenon of slipping of the feet. By filling the memory cotton in the interior of the seat 4, the comfort and durability of the seat 4 can be improved, and the body contour can be remembered to provide good support. The fabric cloth wrapped outside the seat 4 has strong durability and good ventilation and heat dissipation performance, which can improve the comfort of the user in a long-term sitting position.
[0026] Through the above steps, by providing the mounting seat 7 and the mounting groove 8, the rotating shaft 9 can be installed. In use, the telescopic rod 12 can be rotated to a horizontal state by the rotating shaft 9, so that the damping spring 13 and the rubber block 14 can play a certain buffering role when the wheelchair front side is collided, avoiding the impact directly acting on the wheelchair, thereby reducing the body damage to the user. When not in use, the rotating shaft 9 can be conveniently rotated to be attached to the connecting rod 6, thereby facilitating storage, thereby solving the problem that the existing adjustable flat electric wheelchair for the middle-aged and the elderly does not have an impact buffering structure at the front end of the wheelchair in use, and cannot buffer the impact force when the user operates improperly and causes the front end of the wheelchair to collide, which can easily cause the wheelchair structure to loosen and cause damage to the user.
Claims
1. Adjustable flat electric wheelchair for middle-aged and elderly, comprising a bottom support (1); characterized in that: The bottom support (1) is provided with a leveling assembly at the upper end, the upper end of the leveling assembly is connected with an upper support (3), the upper side of the upper support (3) is provided with a seat (4), the rear side of the bottom support (1) and the upper support (3) is connected with a push handle (5), the front end of the upper support (3) is provided with two symmetrical connecting rods (6), the outer surface of the connecting rod (6) is sleeved with a mounting seat (7) at the lower position, the upper surface of the mounting seat (7) is provided with a mounting groove (8) at the front side, the inner side of the mounting groove (8) is rotatably connected with a rotating shaft (9), the left and right ends of the rotating shaft (9) are connected with locking bolts (10) penetrating through the mounting seat (7), the outer surface of the rotating shaft (9) is welded with a sleeve (11) at the upper side, one end of the sleeve (11) is threadedly connected with a telescopic rod (12), the other end of the telescopic rod (12) is provided with one end of a damping spring (13), the other end of the damping spring (13) is provided with a rubber block (14).
2. The adjustable flat middle and old age electric wheelchair according to claim 1, characterized in that: The leveling assembly comprises a first ball seat (201), an electric push rod (202), a second ball seat (203), a hinged rod (204) and a control box (205); the outer surface of the supporting rod of the bottom support (1) is provided with four symmetrical first ball seats (201), the upper surface of the first ball seat (201) is provided with an electric push rod (202), the telescopic end of the electric push rod (202) is provided with a second ball seat (203), the second ball seat (203) is connected with the upper support (3), the upper surface of the bottom support (1) is provided with a hinged rod (204) at the middle position, the hinged rod (204) is rotatably connected with the upper support (3), the upper surface of the bottom support (1) is provided with a control box (205) at the rear side, the seat (4) is embedded with a level, and the control box (205), the electric push rod (202) and the level are electrically connected.
3. The adjustable flat middle and old age electric wheelchair according to claim 1, characterized in that: The outer surface of the bottom support (1) is rotatably connected with two symmetrical drive wheels (15), and the outer surface of the bottom support (1) is rotatably connected with two symmetrical universal wheels (16) at the front side.
4. The adjustable flat middle and old age electric wheelchair according to claim 1, characterized in that: The bottom surface of the bottom support (1) is provided with an article rack (17) at the rear side, and the upper surface of the article rack (17) is provided with a plurality of through holes (18).
5. The adjustable flat middle and old age electric wheelchair according to claim 3, characterized in that: The outer surface of the bottom support (1) is rotatably connected with two symmetrical drive wheels (15), and the outer surface of the bottom support (1) is rotatably connected with two symmetrical universal wheels (16) at the front side.
6. The adjustable flat middle and old age electric wheelchair according to claim 1, characterized in that: The outer surface of the bottom support (1) is rotatably connected with two symmetrical drive wheels (15), and the outer surface of the bottom support (1) is rotatably connected with two symmetrical universal wheels (16) at the front side.
7. The adjustable flat middle and old age electric wheelchair according to claim 1, characterized in that: The outer surface of the bottom support (1) is rotatably connected with two symmetrical drive wheels (15), and the outer surface of the bottom support (1) is rotatably connected with two symmetrical universal wheels (16) at the front side. The seat (4) is filled with memory foam, and the outer layer of the seat (4) is wrapped with fabric.