Driving restraining structure of electric wheelchair
By employing a multi-link structure and a self-lubricating design, the problem of unsafe use of electric wheelchairs after seat angle adjustment has been solved, achieving a multi-angle adjustable and safe driving restraint effect.
Patent Information
- Application Number
- CN202423180281.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-23
- Publication Date
- 2025-12-19
- Estimated Expiration
- 2034-12-23
AI Technical Summary
Existing high-end electric wheelchairs, after the seat angle is adjusted, cause changes in the user's center of gravity and field of vision, leading to unsafe use, especially when going uphill or downhill, where there is a risk of tipping over, and they lack automatic driving inhibition structures.
It adopts a multi-link structure with a self-lubricating structure. Through the cooperation of the first self-lubricating bushing, the second self-lubricating bushing, the first self-lubricating gasket, and the second self-lubricating gasket, it prevents the trigger rod slide from getting stuck when moving, realizes the fixation and position adjustment of the sliding base, and has a multi-angle adjustable driving suppression function.
It achieves safety and stability of electric wheelchairs during multi-angle adjustment, avoids the risk of tipping over due to jamming, and has the advantages of simple structure, low cost, and safety and reliability.
Smart Images
Figure CN223682729U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to electric wheelchair technical field, concretely relates to a kind of travel inhibition structure of electric wheelchair. BACKGROUND
[0002] The existing high-end electric wheelchair, in order to good comfort and satisfy more sitting posture demand, electric push rod will be installed below electric wheelchair, to adjust the seat angle of electric wheelchair.But the change of seat angle can bring the change of human body gravity position and field of vision, when angle is adjusted too much, user drives electric wheelchair is very dangerous, especially when going up and down, it can be possible to overturn.Currently, most angle-adjustable electric wheelchair does not have automatic travel inhibition structure, can only manually adjust the speed of electric wheelchair, unsafe, and there is limitation in use.
[0003] Therefore, we propose a kind of travel inhibition structure of electric wheelchair. INVENTION CONTENTS
[0004] The utility model is mainly aimed at providing a kind of travel inhibition structure of electric wheelchair, by the cooperation of multiple connecting rod structure and self-lubricating structure, the purpose of no card point can be realized, by the cooperation of first self-lubricating bush, second self-lubricating bush, first self-lubricating gasket, second self-lubricating gasket, the jam when trigger lever sliding groove moves can be prevented, sliding base connects long slot type sliding slot, fixed and position adjustment of micro-motion mounting seat are combined, by sliding groove type adjustment design, multi-angle adjustable, the problems in the background art can be effectively solved.
[0005] To achieve the above object, the technical scheme adopted by the utility model is as follows:
[0006] A kind of travel inhibition structure of electric wheelchair, including seat bottom pipe, sliding base, micro-motion mounting seat, travel limit switch and the assembly seat for installing sliding base, the assembly seat is installed at the top of electric wheelchair base, the top of the assembly seat is fixedly connected with two groups of sliding base that are arranged in parallel, installation channel is arranged between the two groups of sliding base, the micro-motion mounting seat for assembling trigger lever is installed on the side of sliding base close to installation channel, and the sliding base is connected with seat bottom pipe by trigger lever;
[0007] The travel limit switch is connected with micro-motion mounting seat by screw.
[0008] By the above technical scheme, by the cooperation of multiple connecting rod structure and self-lubricating structure, the purpose of no card point can be realized, by the cooperation of first self-lubricating bush, second self-lubricating bush, first self-lubricating gasket, second self-lubricating gasket, the jam when trigger lever sliding groove moves can be prevented, sliding base connects long slot type sliding slot, fixed and position adjustment of micro-motion mounting seat are combined, by sliding groove type adjustment design, multi-angle adjustable.
[0009] Specific, the micro-actuator is connected with the sliding base through the first bolt, the elastic pad and the gasket.
[0010] Specific, the lower end of the trigger lever is connected with the sliding base through the second bolt, the first self-lubricating bushing and the first self-lubricating gasket.
[0011] Specific, the upper end of the trigger lever is connected with the seat bottom pipe through the third bolt, the second self-lubricating bushing, the second self-lubricating gasket and the nut.
[0012] Specific, the top end of the third bolt is threadedly connected with the trigger lever, the seat bottom pipe and the nut in sequence.
[0013] Specific, the lower part of the two sides of the electric wheelchair base is provided with the first moving wheel and the second moving wheel.
[0014] The electric wheelchair has the advantages that:
[0015] The driving inhibition structure of the electric wheelchair has the advantages that: the multi-connecting rod structure cooperates with the self-lubricating structure to achieve the purpose of no clamping point; the first self-lubricating bushing, the second self-lubricating bushing, the first self-lubricating gasket and the second self-lubricating gasket are used in cooperation to prevent the trigger lever sliding groove from clamping when moving; the sliding base is connected with the long-groove sliding slot, and the micro-actuator is fixed and the position is adjusted; the sliding groove type adjustment design is multi-angle adjustable, and the driving inhibition structure has the advantages of simple structure, low cost, safety and reliability. BRIEF DESCRIPTION OF DRAWINGS
[0016] The utility model is further explained in connection with the drawings and examples.
[0017] Fig. 1 It is the structural schematic diagram of the utility model;
[0018] Fig. 2 It is the trigger lever perspective drawing of the utility model;
[0019] Fig. 3 It is the assembly seat side view of the utility model;
[0020] In the drawing: 1, seat bottom pipe; 2, sliding base; 3, micro-actuator; 4, first bolt; 5, elastic pad; 6, gasket; 7, travel limit switch; 8, screw; 9, trigger lever; 10, second bolt; 11, first self-lubricating bushing; 12, first self-lubricating gasket; 13, third bolt; 14, second self-lubricating bushing; 15, second self-lubricating gasket; 16, nut; 17, assembly seat; 18, electric wheelchair base; 19, first moving wheel; 20, second moving wheel; 21, installation channel. DETAILED DESCRIPTION
[0021] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.
[0022] As one embodiment of this utility model, such as Figs. 1-3 As shown, the electric wheelchair driving inhibition structure of this utility model includes a seat base tube 1, a sliding base 2, a micro-motion mounting seat 3, a travel limit switch 7, and an assembly seat 17 for mounting the sliding base 2. The assembly seat 17 is mounted on the top of the electric wheelchair base 18. Two sets of relatively parallel sliding bases 2 are fixedly connected to the top of the assembly seat 17. An installation channel 21 is provided between the two sets of sliding bases 2. A micro-motion mounting seat 3 for mounting a trigger rod 9 is installed on the side of the sliding base 2 near the installation channel 21. The sliding base 2 is connected to the seat base tube 1 through the trigger rod 9.
[0023] The travel limit switch 7 is connected to the micro switch mounting base 3 via screws 8.
[0024] In use, the driving suppression structure is an adjustable multi-link structure. During the rising and falling of the electric push rod, the trigger rod 9 generates sliding displacement in the sliding groove of the sliding base 2 through the first self-lubricating bushing 11 and the gasket 6, which touches the travel limit switch 7 to close and suppress the driving function.
[0025] This utility model also includes a micro-motion mounting base 3 connected to the sliding base 2 via a first bolt 4, a spring washer 5, and a gasket 6.
[0026] This utility model also includes a lower end of the trigger rod 9 connected to the sliding base 2 via a second bolt 10, a first self-lubricating bushing 11, and a first self-lubricating gasket 12.
[0027] This utility model also includes a third bolt 13, a second self-lubricating bushing 14, a second self-lubricating washer 15, and a nut 16 connecting the upper end of the trigger rod 9 to the seat base tube 1.
[0028] This utility model also includes a third bolt 13 whose top end passes through the trigger rod 9, the seat base tube 1, and is threadedly connected to the nut 16.
[0029] This utility model also includes that the lower parts of both sides of the electric wheelchair base 18 are equipped with first moving wheels 19 and second moving wheels 20, and an electric push rod is installed on the seat base tube 1.
[0030] The utility model discloses when using, micro -adjusting mounting seat 3 is fixed in the sliding base 2 sliding slot, and the fixed position can be adjusted according to the angle required, the electric push rod rises and falls in the process, and trigger rod 9 generates the sliding displacement in the sliding base 2 sliding slot through first self -lubricating bush 11 and gasket 6, and touches the travel limit switch 7, closes and inhibits the travel function.
[0031] The basic principle, main features and advantages of the utility model are shown and described above. Those skilled in the art should understand that the utility model is not limited by the above examples, and the above-mentioned implementation and description in the specification are only to illustrate the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model can also have various changes and improvements, and these changes and improvements all fall within the scope of the utility model claimed. The scope of protection of the utility model is defined by the appended claims and their equivalents.
Claims
1. A motion-inhibiting structure for an electric wheelchair, characterized in that, The utility model relates to a seat bottom pipe (1), sliding base (2), micro -motion mounting seat (3), stroke limit switch (7) and the assembly seat (17) for installing sliding base (2), the assembly seat (17) is installed at the top of electric wheelchair base (18), the top of assembly seat (17) is fixedly connected with two groups of opposite parallel sliding base (2), and installation channel (21) is equipped between two groups of sliding base (2), and micro -motion mounting seat (3) for assembling trigger rod (9) is installed to the side of sliding base (2) close to installation channel (21), and sliding base (2) is connected with seat bottom pipe (1) through trigger rod (9); The stroke limit switch (7) is connected with the micro -motion mounting seat (3) through the screw (8).
2. The travel inhibiting structure for a power-driven wheelchair according to claim 1, wherein The micro -motion mounting seat (3) is connected with the sliding base (2) through the first bolt (4), the elastic washer (5) and the gasket (6).
3. The travel inhibiting structure for a power-driven wheelchair according to claim 1, wherein The lower end of the trigger rod (9) is connected with the sliding base (2) through the second bolt (10), the first self -lubricating bushing (11), the first self -lubricating gasket (12).
4. The travel inhibiting structure for a power-driven wheelchair according to claim 1, wherein The upper end of the trigger rod (9) is connected with the seat bottom pipe (1) through the third bolt (13), the second self -lubricating bushing (14), the second self -lubricating gasket (15) and the nut (16).
5. The travel inhibiting structure for a motorized wheelchair according to claim 4, wherein The top end of the third bolt (13) is threadedly connected with the trigger rod (9), the seat bottom pipe (1) and the nut (16) in sequence.
6. The travel inhibiting structure of a power wheelchair according to claim 1, wherein The first moving wheel (19) and the second moving wheel (20) are installed on the lower part of both sides of the electric wheelchair base (18).