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Bidirectional speed-restriction anti-lock device of wheelchair

An anti-lock braking and wheelchair technology, which is applied in transportation and packaging, patient chairs or special means of transport, and vehicle ambulance, can solve the problem of not involving the two-way different speed limit of wheelchairs, and does not involve the design of wheelchair anti-lock braking. , The life-threatening problems of the driver and other problems, to achieve the effect of small size, cheap price and high performance

Inactive Publication Date: 2012-02-15
SHANGHAI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But the design of this speed limit does not involve the two-way different speed limit of the wheelchair
Moreover, the existing ordinary wheelchairs do not involve the anti-lock brake design of the wheelchair. If the driver locks up when using the manual brake, the life threat to the driver will be even greater.

Method used

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  • Bidirectional speed-restriction anti-lock device of wheelchair
  • Bidirectional speed-restriction anti-lock device of wheelchair
  • Bidirectional speed-restriction anti-lock device of wheelchair

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Embodiment one: see Figure 1 to Figure 4 , this wheelchair two-way speed-limiting anti-lock braking device, the whole device is installed in the wheelchair backrest inside, and it comprises sensor system 4, controller 5, transmission mechanism 7, braking device 10,11 and motor 6. The sensor system 4 is a non-contact rotary speed sensor. After receiving the signal, it transmits to the controller 5. The controller 5 controls the two different operations of the motor 6 according to two different signals. The motor 6 is connected to control the transmission mechanism 7 Motion, the final transmission mechanism 7 drives two braking devices 10,11 to carry out different braking speed limits to the motion of wheelchair forward and backward.

example 2

[0025] Example 2: see Figure 1 to Figure 4 , the present embodiment is basically the same as Example 1, and the special features are as follows: the transmission mechanism 7 is installed on the mounting plate 14 on the wheelchair backrest 13, and its structure is: a disc at the uppermost end, and the center of the disc is aligned with the The 6 rotating shafts of the motor are connected and can rotate together with the 6 rotating shafts of the motor. The outer ring part of the disk is hinged with one end of the connecting rod. The other end of the connecting rod drives a double-link slider mechanism to move, and the two sliders 12 of the double-link slider mechanism are connected to one end of the two steel cables 8,9 respectively. The other ends of the two steel cables 8,9 are connected with the two braking devices 10,11 respectively. The disc center of the transmission mechanism 7 is connected with the motor 6 rotating shaft, and the motor 6 is connected with the controll...

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Abstract

The invention relates to a bidirectional speed-restriction anti-lock device of a wheelchair. The bidirectional speed-restriction anti-lock device comprises a sensor system, a controller, a transmission mechanism and a motor, wherein the transmission mechanism is arranged at the upper end of the bidirectional speed-restriction anti-lock device, and a disc and a center of the transmission mechanismare connected with the motor which is connected with the controller arranged at the lower end of the bidirectional speed-restriction anti-lock device, and the controller is finally connected with thesensor system which is a non-contact rotary speed sensor and comprises a sensing reflective film mounted on a wheelchair tire and a sensor close to the tire. When the speed of the wheelchair tire reaches to a limit value (a forward speed threshold value and a backward speed threshold value of the wheelchair are different, and generally, the forward speed threshold value is slightly higher than the backward speed threshold value), the speed sensor detects the speed value and generates a voltage and a current to drive and control the system to work, and the controller drives the motor to ensurethat the transmission mechanism works; and the transmission mechanism is provided with a brake device (with the anti-lock function) to reduce the speed of the wheelchair. When the speed is reduced tobe smaller than the threshold value, the speed sensor stops working. The invention realizes the speed-restriction anti-lock functions of the wheelchair and improves the safe performance of the wheelchair. The bidirectional speed-restriction anti-lock device has the advantages of low price, small size and high performance and is suitable for foldable wheelchairs.

Description

technical field [0001] The invention is a two-way speed-limiting and anti-locking device for a wheelchair, which is mainly used to be installed on the wheelchair to realize the functions of automatic two-way speed-limiting and anti-locking, so as to ensure the safety of the wheelchair and the driver. Background technique [0002] General wheelchair appears as an important tool for rehabilitation, and it is a means of transportation for the physically handicapped and the elderly. On a flat slope, the speed of a general wheelchair cannot exceed a certain limit, otherwise the wheelchair will overturn due to excessive speed, causing damage to the wheelchair and the life-threatening of the rider. Especially when going up and downhill, due to the limited physical strength of the physically disabled and the elderly, for example, the physically disabled driving a wheelchair uphill, halfway through exhaustion, the wheelchair begins to slide, and there is no physical strength to perfo...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61G5/10
Inventor 於骞金士良洪跃李毅丁中久屠冉冉
Owner SHANGHAI UNIV