CN101953739B - Bidirectional speed-restriction anti-lock device of wheelchair - Google Patents
Bidirectional speed-restriction anti-lock device of wheelchair Download PDFInfo
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- CN101953739B CN101953739B CN2010102276268A CN201010227626A CN101953739B CN 101953739 B CN101953739 B CN 101953739B CN 2010102276268 A CN2010102276268 A CN 2010102276268A CN 201010227626 A CN201010227626 A CN 201010227626A CN 101953739 B CN101953739 B CN 101953739B
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Abstract
本发明涉及一种轮椅双向限速防抱死装置。它包括：传感器系统、控制器、传动机构和电机。传动机构在装置的上端，传动机构的圆盘与中心与电机相连，电机与处在装置下端的控制器相连，控制器最终与传感器系统相连传。感器系统是一种非接触式旋转型速度传感器，包括装在轮椅轮胎上的传感反射膜和靠近轮胎的感应器。在轮椅轮胎速度达到一个限值时，(轮椅向前的速度阈值和向后的速度阈值不同，一般向前的速度的阈值略高于向后的速度阈值)，速度传感器检测到此速度值，并产生电压和电流驱动控制系统工作，而控制器驱动电机使得传动机构工作，传动机构上带有制动装置(附有防抱死功能)，使轮椅速度下降，当速度下降到比阈值小时，速度传感器停止工作。本发明实现轮椅限速和防抱死的功能，提高轮椅的安全性能。此装置价格便宜、体积小、性能高，可适用于折叠式轮椅。
The invention relates to a two-way speed-limiting anti-lock braking device for a wheelchair. It includes: sensor system, controller, transmission mechanism and motor. The transmission mechanism is at the upper end of the device, the disc of the transmission mechanism is connected with the center and the motor, the motor is connected with the controller at the lower end of the device, and the controller is finally connected with the sensor system. The sensor system is a non-contact rotary speed sensor, which includes a sensing reflective film mounted on the wheelchair tire and a sensor close to the tire. When the wheelchair tire speed reaches a limit value (the forward speed threshold of the wheelchair is different from the backward speed threshold, generally the forward speed threshold is slightly higher than the backward speed threshold), the speed sensor detects this speed value, And generate voltage and current to drive the control system to work, and the controller drives the motor to make the transmission mechanism work. The transmission mechanism has a braking device (with anti-lock function) to reduce the speed of the wheelchair. When the speed drops to less than the threshold value, Speed sensor stopped working. The invention realizes the functions of speed limit and anti-lock of the wheelchair, and improves the safety performance of the wheelchair. The device is cheap, small in size and high in performance, and can be applied to folding wheelchairs.
Description
Technical field
The present invention is a kind of wheelchair two-way speed limiting antilock device, mainly is used for being contained on the wheelchair, to realize the function of automatic bidirectional speed limit and anti-lock, to guarantee wheelchair and driver's safety.
Background technology
General wheelchair is to occur as the important tool of rehabilitation, and it is limbs the disabled and old people's a walking-replacing tool.On flat slope, the speed of general wheelchair can not surpass certain restriction, and not so wheelchair can overturn because speed is excessive, causes wheelchair breaking-up and driver and passenger's life danger.Especially when climb and fall,, drive wheelchair such as limbs the disabled and go up a slope because limbs the disabled and old people's is physical limited; Muscle power overdraw in midway; Wheelchair begins to glide, and has not had muscle power to carry out hand brake at that time, is a kind of situation of danger close so like this.Another kind of situation is a descending, if the gradient is excessive and distance is far away, certainly will cause wheelchair speed excessive, and limiting brake just can be realized a kind of protective effect automatically.
In the design of existing common wheelchair, there has been patent to relate to the design of wheelchair automatic speed-limiting.But the design of this speed limit does not relate to the restriction of the two-way friction speed of wheelchair.And existing common wheelchair do not relate to wheelchair anti-lock design, if the driver and passenger produces the locking situation when using hand brake, so driver and passenger's life being threatened can be bigger.
Summary of the invention
The objective of the invention is to provides a kind of wheelchair two-way speed limiting antilock device to the deficiency of common wheelchair on speed limit and braking anti-lock.
For achieving the above object, design of the present invention is: this wheelchair two-way speed limiting antilock device, it comprises sensing system, controller, drive mechanism and motor etc.Sensing system comprises reflectance coating and the induction apparatus that is contained on the wheelchair tire.When the wheelchair tire speed reaches a limit value, (wheelchair threshold speed forward is different with threshold speed backward, and the threshold value of general speed forward is a little more than backward threshold speed); Velocity sensor detects this velocity amplitude, and produces the work of voltage and current driving governor, and the controller drive motors makes drive mechanism work; Have brake unit (with the anti-lock function) on the drive mechanism; Wheelchair speed is descended, and when speed drops to than threshold value hour, velocity sensor quits work.
Its sensing system is a kind of contactless rotary-type velocity sensor, comprises the sensing reflectance coating that is contained on the wheelchair tire and near the induction apparatus of tire.Roll forward at wheelchair; And when reaching certain speed, drive the sensing reflectance coating with certain speed from left to right through induction apparatus, the time that induction apparatus rotates a circle according to tire is confirmed tire speed; When tire speed reaches a threshold value, the forward current start-up control device that velocity sensor produces.And when wheelchair reverses rolling backward; When reaching other speed; Driving the sensing reflectance coating turns left through induction apparatus from the right side with another speed; Induction apparatus is confirmed tire speed according to the time that tire rotates a circle, when tire speed reaches another threshold value, and the reverse current start-up control device that velocity sensor produces.
Its controller is made different reactions with reverse current receiving the forward current that velocity sensor or induction apparatus transmit.When receiving forward current, controller start-up control motor is with the rotary speed movement of V1.Controller start-up control motor is with the rotary speed movement of V2 when receiving reverse current.Especially the speed after speed after the braking of oppositely retreating on the slope is than just progressive level land or down hill braking is little on the level land to guarantee wheelchair with this.
Its drive mechanism under the driven by motor of different rotating speeds, starts drive mechanism.And the slide block that drives the drive mechanism both sides moves inward, and the cable wire and the brake gear that drive both sides simultaneously carry out skidding.The both sides combined effect is to reach balance, not controlled turning when avoiding braking.This arrestment mechanism reaches the effect of anti-lock with a brake form braking.
Wheelchair speed drops to threshold value when following, and velocity sensor will not produce electric current, and whole device gets into holding state.
According to the foregoing invention design, the present invention adopts following technical proposals:
A kind of wheelchair two-way speed limiting antilock device comprises sensing system, controller, drive mechanism, brake gear and motor, it is characterized in that said motor is through two brake gears of drive mechanism interlock, said controller connecting sensor system and motor; Said sensing system is a contactless rotary-type velocity sensor; The inspection vehicle wheel speed; After receiving signal, be transferred to controller, controller is according to two kinds of different runnings of two kinds of various signals control motors; The motion of motor-driven drive mechanism, final drive gear drive two brake gears different limit speed for braking condition are carried out in the motion that wheelchair moves forward and backward.
Above-mentioned drive mechanism is installed on the installing plate on the wheel chair back, and its structure is: one is in disk topmost, and this disc centre links to each other with machine shaft, and can rotate with machine shaft.The outer ring part and connecting rod one end of this disk are hinged.This connecting rod other end drives a double link slide block mechanism motion, and two slide blocks of this double link slide block mechanism link to each other with an end of two cable wires respectively.The other end of these two cable wires is connected with two brake gears respectively.
Above-mentioned motor is connected with controller through lead, and controller is contained in and a drive mechanism planar below together.
Above-mentioned controller is connected with sensing system through lead, and sensing system comprises induction apparatus and reflectance coating, and induction apparatus links to each other with an end of lead, and reflectance coating is installed on the inboard, tire outer ring.Induction apparatus does not contact with reflectance coating, and at a distance of about 3mm, rotating tire can make induction apparatus corresponding with reflectance coating.
The present invention has following conspicuous outstanding substantive distinguishing features and remarkable advantage compared with prior art:
1. can carry out the wheelchair two-way speed limiting automatically, also can carry out the speed limit of climb and fall, and the velocity ratio after the restriction of advancing is retreated restriction, and afterwards speed is big.
2. the brake characteristics that have the locking of preventing, what take is a brake technology.
And this device low price, volume is little, performance is high, applicable to foldable wheelchair.
Description of drawings:
Fig. 1 is a general assembly drawing of the present invention
Fig. 2 is the syndeton sketch map of sensing system of the present invention, controller
Fig. 3 is the structural representation of drive mechanism of the present invention and brakes
Fig. 4 is the structural representation of drive mechanism of the present invention and brakes
The specific embodiment
The preferred embodiments of the present invention accompanying drawings is following.
Embodiment one: referring to Fig. 1 to Fig. 4, this wheelchair two-way speed limiting antilock device, whole device are installed in wheel chair back the inside, and it comprises sensing system 4, controller 5, drive mechanism 7, brake gear 10,11 and motor 6.Sensing system 4 is contactless rotary-type velocity sensors; After receiving signal; Be transferred to controller 5; Controller 5 is according to 6 two kinds of different runnings of two kinds of various signals control motors, and motor 6 connects 7 motions of control drive mechanism, and final drive gear 7 drives 10,11 pairs of motions that wheelchair moves forward and backward of two brake gears and carries out different limit speed for braking condition.
Instance two: referring to Fig. 1 to Fig. 4; Present embodiment and instance one are basic identical; Special feature is following: described drive mechanism 7 is installed on the installing plate 14 on the wheel chair back 13; Its structure is: one is in disk topmost, and this disc centre links to each other with motor 6 rotating shafts, and can rotate with motor 6 rotating shafts.The outer ring part and connecting rod one end of disk are hinged.The connecting rod other end drives a double link slide block mechanism motion, and two slide blocks 12 of this double link slide block mechanism link to each other with an end of two cable wires 8,9 respectively.Article two, the other end of cable wire 8,9 is connected with two brake gears 10,11 respectively.The disc centre of described drive mechanism 7 links to each other with motor 6 rotating shafts, and motor 6 is connected with controller 5 through lead, and controller 5 is contained in and drive mechanism 7 a planar below together.Described controller 5 is connected with sensing system 4 through lead, and sensing system 4 comprises induction apparatus 3 and reflectance coating 2, and induction apparatus 3 links to each other with an end of lead, and reflectance coating 2 is installed on the inboard, tire 1 outer ring.Induction apparatus 3 does not contact with reflectance coating 2, and at a distance of about 3mm, rotating tire 1 can make induction apparatus 3 corresponding with reflectance coating 2.
Basic functional principle: wheelchair is to roll forward; Drive sensing reflectance coating 2 and pass through induction apparatus 3 from left to right with a speed; The time that induction apparatus 3 rotates a circle according to tire 1 is confirmed tire 1 speed, and when tire 1 speed reached another threshold value and is made as V3, velocity sensor produced forward current start-up control device 5; Controller 5 is receiving forward after current signal, and starter motor 6 turns round with rotating speed V1.Motor 6 drives the crank disk work of drive mechanism simultaneously.Begin in crank disk work, drive the drive mechanism running, the slide block 12 that finally spurs the drive mechanism both sides moves horizontally.And slide block 12 promptly is connected with two brake gears 10,11 with two cable wires 8,9 of brakes, and the brake gear 10,11 that drives both sides is at last braked together.This brake gear can avoid equally because the different vehicle body deflections that produce of right-hand man's braking strength in the hand-operated brake; Keep balance; And, avoid limbs the disabled overturn accident to take place thereby can prevent to produce locking phenomenon owing to have periodic some brake gear.Different with instance 1 is, because the driver and passenger is the mode descending with the front, can use soon to road conditions, relatively meets people's behavioural habits, thus the speed of restriction this moment can be when retreating the speed after the restriction more greatly.And produce this maximum speed limit difference, exactly because positive and negative different electric current control controller, and have controller finally to control motor speed and form.
Wheelchair is retreated when rolling; Driving sensing reflectance coating 2 turns left from the right side through induction apparatus 3 with a speed; The time that induction apparatus 3 rotates a circle according to tire 1 is confirmed tire 1 speed, and when tire 1 speed reached a threshold value and is made as V4, velocity sensor produced reverse current start-up control device 5; Controller is after receiving the reverse current signal, and starter motor 6 turns round with rotating speed V2.Motor 6 drives the crank disk work of drive system simultaneously.Begin in crank disk work, drive the drive mechanism running, the slide block 12 that finally spurs the drive mechanism both sides moves horizontally.And slide block 12 is connected with two brake gears 10,11 with two cable wires 8,9 of brakes, and the brake gear 10,11 that drives both sides is at last braked together.Because this brake gear the 10, the 11st, brake simultaneously on both sides, can avoid because the different vehicle body deflections that produce of right-hand man's braking strength in the hand-operated brake.Use periodically mode of braking arresting the time at two in addition, this mode of braking has been utilized the method for some brake just, to avoid because the stuck wheel that on wheel, makes of brake gear produces locking phenomenon.If wheel lock up, wheel glides with level and smooth form, is easy to make vehicle body to overturn.Installed after this wheelchair two-way speed limiting antilock device, can be good at avoiding the locking situation, to guarantee old man's on the car life safety.
Claims (4)
1. wheelchair two-way speed limiting antilock device; Comprise sensing system (4), controller (5), drive mechanism (7), brake gear (10,11) and motor (6); It is characterized in that said motor (6) is through drive mechanism (7) interlock two brake gears (10,11), said controller (5) connecting sensor system (4) and motor (6); Said sensing system (4) is a contactless rotary-type velocity sensor; The inspection vehicle wheel speed; After receiving signal, be transferred to controller (5), controller (5) is according to (6) two kinds of different runnings of two kinds of various signals control motors; Motor (6) drive transmission device (7) motion, final drive gear (7) drive two brake gears (10,11) different limit speed for braking condition are carried out in the motion that wheelchair moves forward and backward.
2. wheelchair two-way speed limiting antilock device according to claim 1; It is characterized in that said drive mechanism (7) is installed on the installing plate (14) on the wheel chair back (13); Its structure is: one is in disk topmost, and this disc centre links to each other with motor (6) rotating shaft, and rotates with motor (6) rotating shaft; The outer ring part of this disk and an end of a connecting rod are hinged; This connecting rod other end drives a double link slide block mechanism motion, and two slide blocks (12) of this double link slide block mechanism link to each other with an end of two cable wires (8,9) respectively, and the other end of these two cable wires (8,9) is connected with two brake gears (10,11) respectively.
3. wheelchair two-way speed limiting antilock device according to claim 1 is characterized in that said motor (6) is connected with controller (5) through lead, and controller (5) is contained in and drive mechanism (a 7) planar below together.
4. wheelchair two-way speed limiting antilock device according to claim 1; It is characterized in that said controller (5) is connected with sensing system (4) through lead, sensing system (4) comprises an induction apparatus (3) and a reflectance coating (2), and induction apparatus (3) links to each other with an end of lead; And reflectance coating (2) is installed on tire (1) inboard, outer ring; Induction apparatus (3) does not contact with reflectance coating (2), and at a distance of about 3mm, rotating tire (1) can make induction apparatus (3) corresponding with reflectance coating (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102276268A CN101953739B (en) | 2010-07-15 | 2010-07-15 | Bidirectional speed-restriction anti-lock device of wheelchair |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102276268A CN101953739B (en) | 2010-07-15 | 2010-07-15 | Bidirectional speed-restriction anti-lock device of wheelchair |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101953739A CN101953739A (en) | 2011-01-26 |
| CN101953739B true CN101953739B (en) | 2012-02-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010102276268A Expired - Fee Related CN101953739B (en) | 2010-07-15 | 2010-07-15 | Bidirectional speed-restriction anti-lock device of wheelchair |
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Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102019917A (en) * | 2010-08-06 | 2011-04-20 | 深圳市赛格导航科技股份有限公司 | Vehicle speed limiting method and system |
| CN106985608A (en) * | 2017-04-14 | 2017-07-28 | 常州市吉庆机电有限公司 | A kind of universal wheel |
| CN107789128A (en) * | 2017-11-30 | 2018-03-13 | 陈伟望 | A wheelchair with speed limiting device |
| CN108508767B (en) * | 2018-01-25 | 2020-11-10 | 鲁东大学 | Wheelchair intelligent braking method and system |
| CN108238087A (en) * | 2018-03-17 | 2018-07-03 | 襄阳浩宇科技咨询有限公司 | A kind of controllable trolley of speed |
| CN109230174A (en) * | 2018-06-30 | 2019-01-18 | 湖州博得物流设备有限公司 | A kind of flexible conveyer easy to use feeding trolley arresting stop |
| CN109199715B (en) * | 2018-07-31 | 2020-08-28 | 汤星宇 | Wheelchair that security performance is high |
| CN113116650B (en) * | 2021-04-28 | 2023-02-03 | 高日鑫五金制品（深圳）有限公司 | Medical orthopedic postoperative rehabilitation chair |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6854754B1 (en) * | 2003-08-13 | 2005-02-15 | J. Alexander Easley, Jr. | Wheelchair with brake assembly |
| CN200973790Y (en) * | 2006-11-30 | 2007-11-14 | 梁晶 | Controller of electric wheelchair |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4462971B2 (en) * | 2003-12-02 | 2010-05-12 | 勝 小宮山 | Folding wheelchair |
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2010
- 2010-07-15 CN CN2010102276268A patent/CN101953739B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6854754B1 (en) * | 2003-08-13 | 2005-02-15 | J. Alexander Easley, Jr. | Wheelchair with brake assembly |
| CN200973790Y (en) * | 2006-11-30 | 2007-11-14 | 梁晶 | Controller of electric wheelchair |
Non-Patent Citations (1)
| Title |
|---|
| JP特开2005-185811A 2005.07.14 |
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| CN101953739A (en) | 2011-01-26 |
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