Self-balancing stair climbing chair
By designing a track chassis and self-balancing mechanism on the climbing chair, using arc-shaped support rods and cylinder drives, combined with inclination sensors and controllers, automatic level adjustment of the seat is achieved, and the comfort and safety of people with limited mobility to go up and down the stairs in the stair environment is solved, ensuring the balance and comfort of the seat.
Patent Information
- Application Number
- CN202421369282.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-17
- Publication Date
- 2025-05-23
- Estimated Expiration
- 2034-06-17
AI Technical Summary
The prior art cannot effectively solve the comfort and safety of people with limited mobility to go up and down the stairs in a stair environment. It is difficult for traditional wheelchairs to keep the seat parallel to the horizontal plane when facing the stairs.
A self-balancing climbing chair is designed, using a tracked chassis and a self-balancing mechanism. It realizes automatic horizontal adjustment of the seat through arc-shaped support rods, tooth meshing and cylinder drive, combined with inclination sensors and controllers.
In a stair environment, self-balancing stair climbing chairs can adjust the seats to a horizontal state in a timely manner to ensure the comfort and safety of the elderly, and maintain the balance of the seats on uneven roads to achieve comfortable travel.
Smart Images
Figure CN222889115U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of transportation, in particular to a self-balancing stair climbing chair. Background Art
[0002] Most of the buildings in the existing old communities do not have elevators, and stairs are basically the main way to go up and down the stairs. This has caused great inconvenience to many people with limited mobility who cannot climb stairs.
[0003] Traditional wheelchairs are driven by manpower or electricity and can only move on flat ground. They are often unable to cope with the stairs that appear in the process of urbanization. Therefore, pedal-type stair climbers, tracked flat-bed stair climbers, handrail track seat stair climbers, etc. have appeared. However, none of them can meet the continuity needs of disabled or semi-disabled elderly people to freely enter and exit the house and go up and down the stairs. When these devices are climbing stairs, the seats will tilt, and it is impossible to ensure that the seats are always parallel to the horizontal plane, affecting the comfort and safety of the seats.
[0004] For this reason, a self-balancing stair climbing chair is proposed. Utility Model Content
[0005] The purpose of the utility model is to provide a self-balancing stair climbing chair to solve the problems raised in the above background technology.
[0006] To achieve the above object, the utility model provides the following technical solution: a self-balancing stair climbing chair, comprising a crawler chassis, a self-balancing mechanism is installed above the crawler chassis, and a seat is installed on the self-balancing mechanism;
[0007] The self-balancing mechanism includes two fixing plates;
[0008] Two arc-shaped support rods are symmetrically installed on the adjacent sides of the two fixing plates, and teeth are evenly installed on the outer sides of the arc-shaped support rods. The arc-shaped support rods at the upper and lower positions are connected by teeth meshing;
[0009] A connecting rod is installed between the two upper arc-shaped support rods, and a cylinder is hinged between the connecting rod and the lower fixing plate.
[0010] Preferably, a slide groove is provided on the arc-shaped support rod, and a connecting block is provided inside the slide groove.
[0011] Preferably, rollers are respectively installed at both ends of the connection block, and the rollers are respectively located inside the two sliding grooves.
[0012] Preferably: a first hinge seat is installed in the middle of the connecting rod, a second hinge seat is installed on the lower fixing plate, and both ends of the cylinder are hinged to the first hinge seat and the second hinge seat respectively.
[0013] Preferably, the crawler chassis and the seat are both installed with an inclination sensor and a controller for controlling the operation of the self-balancing mechanism.
[0014] Preferably, the two fixing plates are respectively mounted on the lower surface of the seat and the upper surface of the track chassis.
[0015] Preferably: a storage box is installed on the upper fixed plate.
[0016] Compared with the prior art, the utility model has the following beneficial effects: the seat of the crawler-type self-balancing stair climbing wheelchair can be adjusted to a horizontal state in time when the crawler changes angle along the stairs, fully ensuring the comfort and safety of the elderly sitting on the seat. It also includes the ability to ensure the balance of the seat when walking on various uneven roads to achieve the purpose of comfortable travel. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 It is a structural schematic diagram of the utility model;
[0018] Figure 2 It is a structural schematic diagram of the self-balancing mechanism of the utility model;
[0019] Figure 3 This is a schematic diagram of the connection position structure of the cylinder of the utility model;
[0020] Figure 4 It is a schematic diagram of the cutaway structure of the arc-shaped support rod of the utility model;
[0021] Figure 5 It is a structural schematic diagram of the chute of the utility model.
[0022] In the figure: 1. Self-balancing mechanism; 10. Fixed plate; 11. Arc-shaped support rod; 12. Cylinder; 13. First articulated seat; 14. Second articulated seat; 15. Connecting block; 16. Roller; 17. Teeth; 18. Slide; 19. Connecting rod; 2. Track chassis; 3. Seat; 4. Storage box. DETAILED DESCRIPTION
[0023] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.
[0024] Example
[0025] See also Figure 1-5 The utility model provides a technical solution: a self-balancing stair climbing chair, comprising a crawler chassis 2, a self-balancing mechanism 1 is installed above the crawler chassis 2, and a seat 3 is installed on the self-balancing mechanism 1;
[0026] The self-balancing mechanism 1 comprises two fixing plates 10;
[0027] Two arc-shaped support rods 11 are symmetrically installed on the adjacent sides of the two fixing plates 10, and teeth 17 are evenly installed on the outer sides of the arc-shaped support rods 11. The arc-shaped support rods 11 at the upper and lower positions are meshed and connected by the teeth 17;
[0028] A connecting rod 19 is installed between the two upper arc-shaped support rods 11, and a cylinder 12 is hinged between the connecting rod 19 and the lower fixing plate 10.
[0029] like Figure 4 and Figure 5 As shown: a slide groove 18 is provided on the arc-shaped support rod 11, a connecting block 15 is provided inside the slide groove 18, rollers 16 are respectively installed at both ends of the connecting block 15, and the rollers 16 are respectively located inside the two slide grooves 18; through the above arrangement, the rollers 16 at both ends of the connecting block 15 are respectively located inside the slide grooves 18 on the two mutually meshing arc-shaped support rods 11, which can limit the positions of the two arc-shaped support rods 11. In the process of moving the upper arc-shaped support rod 11, the position deviation between the two arc-shaped support rods 11 is avoided, thereby ensuring the normal operation of the equipment and improving the safety.
[0030] like Figure 2 and Figure 3 As shown: a first articulated seat 13 is installed in the middle of the connecting rod 19, a second articulated seat 14 is installed on the fixed plate 10 below, and both ends of the cylinder 12 are respectively hinged to the first articulated seat 13 and the second articulated seat 14; through the above arrangement, both ends of the cylinder 12 are hinged to the connecting rod 19 and the fixed plate 10, and when the cylinder 12 is running, the connecting rod 19 can drive the upper arc-shaped support rod 11 to operate, thereby adjusting the angle of the seat 3 so that the seat 3 is parallel to the horizontal plane, thereby ensuring the safety of the personnel.
[0031] like Figure 1 As shown: the interior of the crawler chassis 2 and the seat 3 are both installed with an inclination sensor and a controller for controlling the operation of the self-balancing mechanism 1; through the above settings, the inclination sensor can respectively detect the inclination values of the crawler chassis 2 and the seat 3, and then feed the values back to the inside of the controller, and then the controller controls the operation of the cylinder 12, so that the seat 3 can be in a horizontal position.
[0032] like Figure 1 As shown: two fixing plates 10 are respectively installed on the lower surface of the seat 3 and the upper surface of the track chassis 2, and a storage box 4 is installed on the upper fixing plate 10; through the above arrangement, it is convenient to store some items.
[0033] Working principle: when it is necessary to climb stairs, the crawler chassis 2 will first contact the stairs, and then the crawler chassis 2 will tilt due to the climbing action of the crawler. At this time, the inclination sensor inside the crawler chassis 2 detects the inclination value and feeds it back to the controller. Through calculation and analysis by the controller, the cylinder 12 is controlled to operate. Since both ends of the cylinder 12 are hinged, the cylinder 12 can drive the upper arc support rod 11 to move, but at the same time, due to the limiting effect of the internal connecting blocks 15 and rollers 16 of the two arc support rods 11, the upper arc support rod 11 can only move along the outer side of the lower arc support rod 11 through the teeth 17, and then the seat 3 can be driven to move, so as to adjust the seat 3 to a horizontal state. When the seat 3 is in a horizontal state, the value is sent to the controller through the inclination sensor, and the controller receives the information, and then stops running the cylinder 12 to complete the self-balancing adjustment work, so that the device can drive people to climb the stairs smoothly, thereby improving the overall safety.
[0034] 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. A self-balancing stair climbing chair, comprising a crawler chassis (2), characterized in that: A self-balancing mechanism (1) is installed above the crawler chassis (2), and a seat (3) is installed on the self-balancing mechanism (1); The self-balancing mechanism (1) comprises two fixing plates (10); Two arc-shaped support rods (11) are symmetrically mounted on adjacent sides of the two fixing plates (10), and teeth (17) are evenly mounted on the outer sides of the arc-shaped support rods (11), and the arc-shaped support rods (11) at the upper and lower positions are meshed and connected via the teeth (17); A connecting rod (19) is installed between the two upper arc-shaped support rods (11), and a cylinder (12) is hinged between the connecting rod (19) and the lower fixing plate (10).
2. The self-balancing stair climbing chair according to claim 1, characterized in that: The arc-shaped support rod (11) is provided with a slide groove (18), and a connecting block (15) is provided inside the slide groove (18).
3. The self-balancing stair climbing chair according to claim 2, characterized in that: Rollers (16) are respectively installed at both ends of the connection block (15), and the rollers (16) are respectively located inside the two sliding grooves (18).
4. The self-balancing stair climbing chair according to claim 1, characterized in that: A first hinge seat (13) is installed in the middle of the connecting rod (19), a second hinge seat (14) is installed on the lower fixed plate (10), and both ends of the cylinder (12) are hinged to the first hinge seat (13) and the second hinge seat (14) respectively.
5. The self-balancing stair climbing chair according to claim 1, characterized in that: The crawler chassis (2) and the seat (3) are both installed with an inclination sensor and a controller for controlling the operation of the self-balancing mechanism (1).
6. The self-balancing stair climbing chair according to claim 1, characterized in that: The two fixing plates (10) are respectively mounted on the lower surface of the seat (3) and the upper surface of the crawler chassis (2).
7. The self-balancing stair climbing chair according to claim 1, characterized in that: A storage box (4) is installed on the upper fixed plate (10).