CN201755297U - Automatic cervical vertebra traction chair - Google Patents
Automatic cervical vertebra traction chair Download PDFInfo
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- CN201755297U CN201755297U CN2010201644268U CN201020164426U CN201755297U CN 201755297 U CN201755297 U CN 201755297U CN 2010201644268 U CN2010201644268 U CN 2010201644268U CN 201020164426 U CN201020164426 U CN 201020164426U CN 201755297 U CN201755297 U CN 201755297U
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- auxiliary reclay
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- opened contact
- time relay
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- 239000000725 suspension Substances 0.000 claims abstract description 5
- 230000005611 electricity Effects 0.000 claims description 21
- 239000002828 fuel tank Substances 0.000 claims description 7
- 230000001105 regulatory effect Effects 0.000 claims description 4
- 239000003990 capacitor Substances 0.000 claims description 3
- 239000000411 inducer Substances 0.000 claims description 3
- 230000000087 stabilizing effect Effects 0.000 claims description 3
- -1 second check valve Substances 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 8
- 206010041591 Spinal osteoarthritis Diseases 0.000 abstract description 3
- 208000036319 cervical spondylosis Diseases 0.000 abstract description 3
- 230000000694 effects Effects 0.000 abstract description 3
- 208000005801 spondylosis Diseases 0.000 abstract description 3
- 239000007787 solid Substances 0.000 abstract 1
- 238000002560 therapeutic procedure Methods 0.000 description 4
- 230000003247 decreasing effect Effects 0.000 description 3
- 230000007423 decrease Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- 230000001225 therapeutic effect Effects 0.000 description 2
- 208000005392 Spasm Diseases 0.000 description 1
- 238000005273 aeration Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 210000005036 nerve Anatomy 0.000 description 1
- 238000012946 outsourcing Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 210000000278 spinal cord Anatomy 0.000 description 1
- 210000002385 vertebral artery Anatomy 0.000 description 1
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Abstract
An automatic cervical vertebra traction chair belongs to traction chairs for curing cervical spondylosis. The traction chair comprises a chair, a hydraulic device and a motor installed on the backrest of the chair, a control circuit under the chair, a hydraulic cylinder connected to the backrest of the chair via a fixing ring, a crossbeam connected on the upper end of the piston rod of the hydraulic cylinder, a pressure sensor connected on the end of the crossbeam, helmet type neck angle controller connected to the lower end of the pressure sensor via a suspension hook, an emergency stop button, a stop button and a start button on the armrest of the chair, a seating surface and a seating cushion on the chair, and pulleys on the bottom of the chair. The automatic cervical vertebra traction chair is advantageous in that one-button operation can be realized for patients; the traction force and time required by a patient are automatically controlled by the control system during cervical vertebra traction process; so that independent use of the traction chair with ensured curing effect is possible; the traction chair has a compact, reasonable and solid structure and is convenient for moving with pulleys provided under the chair; and the hydraulic and electric components are sealed with a sealed hood, which makes the traction chair clean and do not pollute the environment.
Description
Technical field
This utility model relates to a kind of traction chair for the treatment of cervical spondylosis, particularly a kind of automatic cervical traction chair.
Background technology
Cervical traction is important, commonly used effective therapy in the cervical spondylosis non-operative treatment.At first, traction can be removed the musculi colli spasm, reduces the pressure to intervertebral disc; Next, traction improves or the recovery cervical curvature by regulating the articuli intervertebrales disorder; Once more, traction can widen narrow intervertebral space and intervertebral foramina, and it is intrinsic pressure to reduce intervertebral disc, fibrous tissue is resetted, and spinal cord, nerve root institute's irriate and compressing are alleviated, and the vertebral artery of distortion is upheld, recover or rebuild cervical vertebra biomechanics balance, thereby play therapeutical effect.
The cervical traction apparatus that has occurred many different cultivars at present in the society is as jaw pillow suspender belt method, aeration, electric driving method etc.The cervical traction chair also is wherein a kind of, and patient end is seated on the seat, upwards stretches cervical vertebra to reach traction effect by stretcher.But Related product in the market all is based on the artificial application of force, and its design is gone up and had three big drawbacks: 1, be not easy to the individual and use.The patient is in seat, and oneself can not be handled the cervical traction chair and move, and needs other people to assist.2, the size of pull strength is felt to determine that be difficult to obtain the exact value of optimum traction in theory, also there is same problem in the pull-in time by the patient fully.3, traction angle can not get accurately control and can not adjust.Traction angle is an important parameter in the cervical traction therapy.
The utility model content
The purpose of this utility model is to provide a kind of patient oneself to control, and adjusts the automatic cervical traction chair of pulling force and angle.
The target that reaches is: realize the automatization of cervical traction therapy, and control the size and the pull-in time of pull strength automatically in distraction procedure.
The purpose of this utility model is achieved in that this traction chair has a seat, hydraulic means and motor mounting are behind backrest, control circuit is installed under the seat, after hydraulic cylinder is connected backrest by clamping rings, the piston rod upper end of hydraulic cylinder is connected with crossbeam, end at crossbeam is connected with pressure transducer, is connected with helmet-type neck angle controller by suspension hook in the lower end of pressure transducer; Scram button, stop button and start button are arranged on armrest, a chair seating face and Chain cushion are arranged on the seat, pulley is arranged in the bottom of seat.
Described hydraulic means comprises single acting vane pump, overflow valve, electrohydraulic servo valve, first check valve, flow speed control valve, solenoid directional control valve, hydraulic cylinder, Pressure gauge, oil filter, fuel tank, second check valve, oil pipe and screw, motor is connected with single acting vane pump, one end of single acting vane pump is connected with fuel tank by oil filter, the other end while and the Pressure gauge of single acting vane pump, overflow valve is connected with electrohydraulic servo valve, the other end connected tank of overflow valve, a port of electrohydraulic servo valve is by second check valve in parallel, flow speed control valve is connected with an end of hydraulic cylinder with oil pipe, another port of electrohydraulic servo valve is by second check valve in parallel, solenoid directional control valve is connected with the other end of hydraulic cylinder with oil pipe, the another port connected tank that electrohydraulic servo valve is corresponding with first check valve.
Described control circuit comprises electromotor control circuit and sensor control circuit, described electromotor control circuit, very first time relay, second time relay, first auxiliary reclay, second auxiliary reclay, scram button, stop button, thermorelay, fuse, motor, electric magnet and start button, power supply is by the power protection fuse, first auxiliary reclay in parallel and the normally opened contact and the thermorelay of second auxiliary reclay are connected with motor, and power supply is a controller power source by short-circuit protection fuse and thermorelay scram button again; On controller power source, be parallel with very first time relay, second time relay, first auxiliary reclay, second auxiliary reclay and the ferroelectric loop of electromagnetism; Wherein, be in series with the first auxiliary reclay normally opened contact and the second auxiliary reclay normally opened contact in parallel on the very first time relay electricity loop, second time relay electricity is in series with the second auxiliary reclay normally-closed contact and the first auxiliary reclay normally opened contact of parallel connection and the normally opened contact of second time relay on the loop, be in series with the normally-closed contact of second auxiliary reclay on first auxiliary reclay electricity loop, the normally-closed contact of very first time relay and start button in parallel, the normally opened contact of first auxiliary reclay, be in series with the normally-closed contact of first auxiliary reclay on second auxiliary reclay electricity loop, the normally-closed contact of very first time relay and second time relay normally opened contact in parallel, the normally opened contact of stop button and the 21 auxiliary reclay, be in series with the normally opened contact of second auxiliary reclay on the ferroelectric loop of electromagnetism.
Described sensor control circuit has power supply, this power supply is by mains transformer, rectifier bridge, capacitor, inducer and voltage stabilizing collector constitute conventional regulated power supply, pressure transducer connects into bridge circuit, a bridge end is connected with power supply, another bridge end is an outfan, outfan is connected with the positive-negative input end of resistance with first proportional amplifier by the normally-closed contact of second auxiliary reclay, between the negative input end of first proportional amplifier and outfan, be connected with resistance, the positive pole of power supply is connected with the positive input terminal of subtractor by resistance, the outfan of first comparison amplifier is connected with the negative input end of subtractor by resistance, be connected with resistance between the positive input terminal of subtractor and the outfan, between negative input end and ground, be connected with resistance, the outfan of subtractor is connected by the positive input terminal of resistance with second proportional amplifier, the negative input end of second proportional amplifier passes through resistance eutral grounding, also be connected with outfan by resistance, be parallel with two groups of electro-hydraulic servo coils between the outfan of second proportional amplifier and the ground, connect respectively on each group electro-hydraulic servo coil normally opened contact of one first auxiliary reclay and the normally opened contact of second auxiliary reclay.
Beneficial effect, owing to adopted such scheme, after Hydraulic Elements were installed on backrest, component was installed under the seat.The hydraulic cylinder lower end is supported by supporting parallels, after the middle part is added fastening screw and is fixed in backrest by clamping rings.Helmet-type angle controller is suspended on the crossbeam.Three buttons are installed on the armrest successively, and patient end is seated on the automatic cervical traction chair during work, and backrest is close at the back, and head stretches in the helmet-type angle controller that is suspended from patient's overhead.Press start button after adjusting traction angle, hydraulic cylinder piston rod rising cervical traction.Patient oneself can control, and adjusts pulling force and angle, has reached the purpose of this utility model.
Advantage: compare and adopt the artificial application of force to realize the traction chair of traction, described automatic cervical traction chair can be realized patient's " one-touch " operation, promptly only need dub start button just can realize the cervical traction therapy, and control required pull strength of patient and pull-in time automatically by control system in the cervical traction process, not only can guarantee therapeutic effect but also be convenient to the individual to use separately.And, described automatic cervical traction chair is provided with scram button, break down when causing draw bar upwards to stretch cervical vertebra when the patient feels the excessive or automatic cervical traction chair of pull strength, the user can in time press this button makes automatic cervical traction chair stop all actions to avoid something unexpected happened always.Automatically under the cervical traction chair pulley is installed, makes things convenient for the patient to move flexibly.In addition, the cervical traction chair is concentrated and has been adopted multiple technologies such as machinery, electronics, circuit, hydraulic pressure, pick off automatically, has reached the control effect of automatic cervical traction chair, compact conformation, reasonable, firmly.Hydraulic pressure and electrical equipment external seal bootr seal, and clean hygiene is free from environmental pollution, are the desirable utility model cervical traction medical apparatus and instruments that is suitable for family, outpatient service, hospital.
Description of drawings
Fig. 1 is the side-looking structure chart of utility model
Fig. 2 is the dorsal view of Fig. 1.
Fig. 3 electromotor control circuit figure of the present utility model.
Fig. 4 is pressure transducer control circuit figure of the present utility model.
Among the figure, 1, single acting vane pump; 2, overflow valve; 3, electrohydraulic servo valve; 4, first check valve; 5, flow speed control valve; 6, solenoid directional control valve; 7, hydraulic cylinder; 8, Pressure gauge; 9, oil filter; 10, fuel tank; 11, second check valve; 12, oil pipe; 13, screw; 14, piston rod; 15, clamping rings; 16, support parallels; 17 crossbeams; 18, pressure transducer; 19, suspension hook; 20, helmet-type neck angle controller; 21, backrest; 22, armrest; 23, scram button; 24, stop button; 25, start button; 26, seat seat surface; 27, seat cushion; 28, pulley; 29, circuit; 30, motor; 31, seal bootr; KT1, the time relay; KT2, the time relay; KA1, auxiliary reclay; KA2, auxiliary reclay; SB1, scram button; SB3, stop button; FR, thermorelay; FU, fuse; M, motor; 3DT, electric magnet; SB2, start button.
The specific embodiment
Embodiment 1: this traction chair has a seat, and hydraulic means and motor mounting are behind backrest, and control circuit is installed under the seat; After hydraulic cylinder 7 is connected backrest by clamping rings 15, piston rod 14 upper ends of hydraulic cylinder 7 are connected with crossbeam 17, be connected with pressure transducer 18 in the end of crossbeam, be connected with helmet-type neck angle controller 20 by suspension hook 19 in the lower end of pressure transducer; Scram button 23, stop button 24 and start button 25 are arranged on armrest, have on the seat a chair seating face 26 and, Chain cushion 27, in the bottom of seat pulley 28 is arranged.
Described helmet-type neck angle controller is the outsourcing product.
Described hydraulic means comprises single acting vane pump 1, overflow valve 2, electrohydraulic servo valve 3, first check valve 4, flow speed control valve 5, solenoid directional control valve 6, hydraulic cylinder 7, Pressure gauge 8, oil filter 9, fuel tank 10, second check valve 11, oil pipe 12, screw 13, motor is connected with single acting vane pump 1, one end of single acting vane pump 1 is connected with fuel tank by oil filter 9, the other end while and the Pressure gauge of single acting vane pump, overflow valve is connected with electrohydraulic servo valve, the other end connected tank 10 of overflow valve 2, a port of electrohydraulic servo valve 3 is by second check valve 11 in parallel, flow speed control valve 5 is connected with an end of hydraulic cylinder 7 with oil pipe, another port of electrohydraulic servo valve 3 is by second check valve 11 in parallel, solenoid directional control valve 6 is connected with the other end of oil pipe with hydraulic cylinder 7, the another port connected tank 10 that electrohydraulic servo valve 3 is corresponding with first check valve 4.
Described control circuit comprises electromotor control circuit and sensor control circuit, described electromotor control circuit, include very first time relay K T1, second time relay KT2, the first auxiliary reclay KA1, the second auxiliary reclay KA2, scram button SB1, stop button SB3, thermorelay FR, fuse FU, motor M electric magnet 3DT, start button SB2, power supply is by power protection fuse FU, first auxiliary reclay KA1 in parallel and normally opened contact and the thermorelay FR of the second auxiliary reclay KA2 are connected with motor, power supply is again by short-circuit protection fuse and thermorelay FR, scram button SB1 is a controller power source, is parallel with very first time relay K T1 on controller power source, second time relay KT2, the first auxiliary reclay KA1, the second auxiliary reclay KA2 and electric magnet 3DT electricity loop; Wherein, be in series with the first auxiliary reclay KA1 normally opened contact and the second auxiliary reclay KA2 normally opened contact in parallel on the very first time relay K T1 electricity loop; Second time relay KT2 electricity is in series with the second auxiliary reclay KA2 normally-closed contact and first auxiliary reclay KA1 normally opened contact of parallel connection and the normally opened contact of second time relay KT1 on the loop; Be in series with the normally-closed contact of second auxiliary reclay, the normally-closed contact of very first time relay K T1 and start button in parallel, the KA1 normally opened contact of first auxiliary reclay on the first auxiliary reclay KA1 electricity loop; Be in series with the normally-closed contact of normally-closed contact, very first time relay K T1 of the first auxiliary reclay KA1 and the normally opened contact of second time relay KT2 normally opened contact, stop button SB3 and the second auxiliary reclay KA2 in parallel on the second auxiliary reclay KA2 electricity loop; Be in series with the normally opened contact of the second auxiliary reclay KA2 on the electric magnet 3DT electricity loop.
Described sensor control circuit has power supply, this power supply is by mains transformer 2-11, rectifier bridge 2-10, wave filter 2-9 is a capacitor, inducer and voltage stabilizing collector 2-8 constitute conventional regulated power supply, pressure transducer 2-4 connects into bridge circuit, a bridge end is connected with power supply, another bridge end is an outfan, outfan is connected with the positive-negative input end of resistance with first proportional amplifier by the normally-closed contact of the second auxiliary reclay KA2, between the negative input end of the first proportional amplifier 2-3 and outfan, be connected with resistance, the positive pole of power supply is connected by the positive input terminal of resistance with subtractor 2-6, the outfan of the first comparison amplifier 2-3 is connected by the negative input end of resistance with subtractor 2-6, be connected with resistance between the positive input terminal of subtractor 2-6 and the outfan, between negative input end and ground, be connected with resistance, the outfan of subtractor 2-6 is connected by the positive input terminal of resistance with the second proportional amplifier 2-2, the negative input end of the second proportional amplifier 2-2 passes through resistance eutral grounding, also be connected with outfan by resistance, be parallel with two groups of electro-hydraulic servo coil 2-1 between the outfan of the second proportional amplifier 2-2 and the ground, connect respectively on each group electro-hydraulic servo coil 2-1 normally opened contact of one first auxiliary reclay KA1 and the normally opened contact of the second auxiliary reclay KA2.
In the accompanying drawing 3, all electrical equipments are installed on the base plate under the seat.Its operation principle is:
SB2 is a starting button.After pressing SB2, the KA1 coil gets electric, motor main circuit KA1 main contacts closure, and motor rotates.Simultaneously, the closed self-locking of KA1 normally opened contact is kept the KA1 coil and is got electricity condition, and the KA1 main contacts remains closed, and motor continues to rotate, and the hydraulic haulage bar rises.
When SB2 presses, KA1 normally opened contact closure, the KT1 coil gets electric, and time expand, be set to 20s, and the KT1 time-delay disconnects after disconnecting break contact KT1 time-delay 20s.KA1 coil losing electricity, motor main circuit KA1 main contacts disconnect, motor stall, the height when the hydraulic haulage bar rises to pull strength and reaches 176N.Simultaneously, the KA1 normally opened contact disconnects, KT1 coil blackout, no longer timing.
When SB2 presses, KA1 normally opened contact closure, the KT2 coil gets electric, and time expand, be set to 620s, and promptly 10 minutes and 20 seconds, the closed self-locking of the instantaneous moving together contact of KT2 was kept the KT2 coil and is got electricity condition.Therefore, behind the KA1 coil losing electricity, the KT2 coil still can be kept closed, up to the KA1 coil losing electricity after 10 minutes, and KT2 timing closing moving together contact closure, the KA2 coil gets electric, motor main circuit KA2 main contacts closure, motor rotates.Simultaneously, the closed self-locking of KA2 normally opened contact is kept the KA2 coil and is got electricity condition, and the KA2 main contacts remains closed, the sustainable rotation of motor.At this moment, the pull-in time has reached 10 minutes, and the hydraulic haulage bar descends fast.
The KA2 coil get electric in, KA2 normally opened contact closure, solenoid 3DT gets electric, bi-bit bi-pass electromagnetic switch valve events, the hydraulic haulage bar transfers quick decline to by the original position stop traction state.
The KA2 coil get electric in, KA2 normally opened contact closure, the KT1 coil gets electric, time expand, be set to 20s, KT1 time-delay disconnects after disconnecting break contact KT1 time-delay 20s, the KA2 coil losing electricity, motor main circuit KA2 main contacts disconnects, the motor stall.Simultaneously, the KA2 normally-closed contact disconnects, KT2 coil blackout, no longer timing.At this moment, the hydraulic haulage bar stops after dropping to original state.
SB1 is a scram button, and which working stage no matter traction chair be in automatically, and the user can press this button at any time, stops the everything of automatic cervical traction chair.
If automatically the cervical traction chair in the course of the work the user used scram button, in the time of then can occurring using next time draw bar not at initial position, the situation that draw bar is stood high above the masses.For avoiding this type of phenomenon, in circuit, be provided with button SB3.The user only need press this button, just can in 20 seconds draw bar be dropped to original state.
KA1 normally-closed contact and KA2 normally-closed contact are the interlocking contact among Fig. 3, guarantee that KA1 coil and KA2 coil can not be simultaneously.
Fig. 4 is an electronic control circuit, and all electrical equipments all are welded on the circuit board.Its operation principle is: by the operation principle of automatic cervical traction chair as can be known, be divided into two sections in the draw bar uphill process: the one, and the hydraulic cylinder sky advances 70mm.Sky advances in the process, and pull strength F is always 0, then the output voltage U of pressure transducer
fAlso be always 0.Because voltage constant value U
f=528mv remains unchanged, so the subtractor output voltage U remains maximum 528mv, the electrohydraulic servo valve coil current is also near maximum 15mA, and it is maximum that the electrohydraulic servo valve valve core opening reaches, and it is maximum that the flow of input hydraulic cylinder also reaches, and draw bar is with V
1The speed fast rise of=0.6m/min; The 2nd, the hydraulic cylinder worker advances 10mm.When draw bar neck cover contact neck, pull strength begins to become gradually greatly, the output voltage U of pressure transducer
fNo longer be 0, but increase to 528mv gradually from 0, the subtractor output voltage U begins slowly to be decreased to 0 from 528mv, the electrohydraulic servo valve coil current slowly is decreased to 0 from 15mA, the electrohydraulic servo valve valve core opening is decreased to 0 from maximum, and the flow of input hydraulic cylinder gradually becomes 0, and draw bar is with V
2The speed of=0.3m/min slowly rises, when pull strength F reaches design pull strength 176N, and the output voltage U of pressure transducer
f=528mv, subtractor output voltage U=0, electrohydraulic servo valve coil current I=0, the electro-hydraulic servo valve core is in meta, and the flow Q=0 of input hydraulic cylinder, draw bar stop rising and keep original position, continuous traction cervical vertebra.After the pull-in time reached 10 minutes, the auxiliary reclay KA2 normally-closed contact of pressure transducer outlet side disconnected, and makes the pressure transducer output voltage U
f=0, subtractor output voltage U=528mv, electrohydraulic servo valve coil current I=15mA, draw bar is with V
3The speed of=0.6m/min is quick.Draw bar is in the decline process, the output voltage U of pressure transducer
fBe always 0, then the voltage difference U that obtains behind subtractor and homophase input ratio amplifying circuit is always maximum, i.e. U '=U
i-U
f=9750mv, electric current in the electro-hydraulic servo valve coil is always maximum I=15mA, then the electrohydraulic servo valve valve core opening keeps maximum, hydraulic cylinder input flow rate maximum, draw bar descends fast up to resetting with the placed in-line auxiliary reclay KA2 of electro-hydraulic servo valve coil normally open contact, cut off electrohydraulic servo valve coil current I=0, draw bar comes back to initial position.
Claims (4)
1. automatic cervical traction chair, it is characterized in that: this traction chair has a seat, hydraulic means and motor mounting are behind backrest, control circuit is installed under the seat, after hydraulic cylinder is connected backrest by clamping rings, the piston rod upper end of hydraulic cylinder is connected with crossbeam, is connected with pressure transducer in the end of crossbeam, is connected with helmet-type neck angle controller by suspension hook in the lower end of pressure transducer; Scram button, stop button and start button are arranged on armrest, a chair seating face and Chain cushion are arranged on the seat, pulley is arranged in the bottom of seat.
2. automatic cervical traction chair according to claim 1, it is characterized in that: described hydraulic means comprises single acting vane pump, overflow valve, electrohydraulic servo valve, first check valve, flow speed control valve, solenoid directional control valve, hydraulic cylinder, Pressure gauge, oil filter, fuel tank, second check valve, oil pipe and screw, motor is connected with single acting vane pump, one end of single acting vane pump is connected with fuel tank by oil filter, the other end while and the Pressure gauge of single acting vane pump, overflow valve is connected with electrohydraulic servo valve, the other end connected tank of overflow valve, a port of electrohydraulic servo valve is by second check valve in parallel, flow speed control valve is connected with an end of hydraulic cylinder with oil pipe, another port of electrohydraulic servo valve is by second check valve in parallel, solenoid directional control valve is connected with the other end of hydraulic cylinder with oil pipe, the another port connected tank that electrohydraulic servo valve is corresponding with first check valve.
3. automatic cervical traction chair according to claim 1, it is characterized in that: described control circuit comprises electromotor control circuit and sensor control circuit, described electromotor control circuit, include very first time relay, second time relay, first auxiliary reclay, second auxiliary reclay, scram button, stop button, thermorelay, fuse, motor, electric magnet and start button, power supply is by the power protection fuse, first auxiliary reclay in parallel and the normally opened contact and the thermorelay of second auxiliary reclay are connected with motor, and power supply is a controller power source by short-circuit protection fuse and thermorelay scram button again; On controller power source, be parallel with very first time relay, second time relay, first auxiliary reclay, second auxiliary reclay and the ferroelectric loop of electromagnetism; Wherein, be in series with the first auxiliary reclay normally opened contact and the second auxiliary reclay normally opened contact in parallel on the very first time relay electricity loop, second time relay electricity is in series with the second auxiliary reclay normally-closed contact and the first auxiliary reclay normally opened contact of parallel connection and the normally opened contact of second time relay on the loop, be in series with the normally-closed contact of second auxiliary reclay on first auxiliary reclay electricity loop, the normally-closed contact of very first time relay and start button in parallel, the normally opened contact of first auxiliary reclay, be in series with the normally-closed contact of first auxiliary reclay on second auxiliary reclay electricity loop, the normally-closed contact of very first time relay and second time relay normally opened contact in parallel, the normally opened contact of stop button and the 21 auxiliary reclay, be in series with the normally opened contact of second auxiliary reclay on the ferroelectric loop of electromagnetism.
4. automatic cervical traction chair according to claim 1, it is characterized in that: described sensor control circuit has power supply, this power supply is by mains transformer, rectifier bridge, capacitor, inducer and voltage stabilizing collector constitute conventional regulated power supply, pressure transducer connects into bridge circuit, a bridge end is connected with power supply, another bridge end is an outfan, outfan is connected with the positive-negative input end of resistance with first proportional amplifier by the normally-closed contact of second auxiliary reclay, between the negative input end of first proportional amplifier and outfan, be connected with resistance, the positive pole of power supply is connected with the positive input terminal of subtractor by resistance, the outfan of first comparison amplifier is connected with the negative input end of subtractor by resistance, be connected with resistance between the positive input terminal of subtractor and the outfan, between negative input end and ground, be connected with resistance, the outfan of subtractor is connected by the positive input terminal of resistance with second proportional amplifier, the negative input end of second proportional amplifier passes through resistance eutral grounding, also be connected with outfan by resistance, be parallel with two groups of electro-hydraulic servo coils between the outfan of second proportional amplifier and the ground, connect respectively on each group electro-hydraulic servo coil normally opened contact of one first auxiliary reclay and the normally opened contact of second auxiliary reclay.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201644268U CN201755297U (en) | 2010-04-10 | 2010-04-10 | Automatic cervical vertebra traction chair |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201644268U CN201755297U (en) | 2010-04-10 | 2010-04-10 | Automatic cervical vertebra traction chair |
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| CN201755297U true CN201755297U (en) | 2011-03-09 |
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| CN2010201644268U Expired - Fee Related CN201755297U (en) | 2010-04-10 | 2010-04-10 | Automatic cervical vertebra traction chair |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104622614A (en) * | 2015-02-05 | 2015-05-20 | 徐州工业职业技术学院 | Automatic cervical traction chair structure |
| CN104678807A (en) * | 2015-02-05 | 2015-06-03 | 徐州工业职业技术学院 | Hydraulic cylinder drawbar control circuit of automated cervical traction chair |
| CN105559956A (en) * | 2015-12-11 | 2016-05-11 | 安庆师范学院 | Human body cervical vertebra training test system |
| CN105963058A (en) * | 2016-07-26 | 2016-09-28 | 山东省千佛山医院 | Light cervical traction treatment device for old people |
| CN106361485A (en) * | 2016-10-27 | 2017-02-01 | 福建中医药大学 | Three-dimensional neck drafting device |
| CN106963537A (en) * | 2017-04-11 | 2017-07-21 | 董晶龙 | A kind for the treatment of of cervical spondylopathy apparatus and its installation method |
| CN109620504A (en) * | 2018-12-19 | 2019-04-16 | 佛山市神风航空科技有限公司 | A kind of lift cervical traction tractor |
| CN110680586A (en) * | 2019-10-22 | 2020-01-14 | 浙江树人学院（浙江树人大学） | Cervical vertebra traction chair and cervical vertebra traction device |
| CN113082545A (en) * | 2021-05-14 | 2021-07-09 | 石明霞 | Cell activation physiotherapy chair |
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2010
- 2010-04-10 CN CN2010201644268U patent/CN201755297U/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104622614A (en) * | 2015-02-05 | 2015-05-20 | 徐州工业职业技术学院 | Automatic cervical traction chair structure |
| CN104678807A (en) * | 2015-02-05 | 2015-06-03 | 徐州工业职业技术学院 | Hydraulic cylinder drawbar control circuit of automated cervical traction chair |
| CN105559956A (en) * | 2015-12-11 | 2016-05-11 | 安庆师范学院 | Human body cervical vertebra training test system |
| CN105963058A (en) * | 2016-07-26 | 2016-09-28 | 山东省千佛山医院 | Light cervical traction treatment device for old people |
| CN105963058B (en) * | 2016-07-26 | 2018-06-26 | 山东省千佛山医院 | A kind of light-duty the elderly's cervical vertebrae traction device |
| CN106361485A (en) * | 2016-10-27 | 2017-02-01 | 福建中医药大学 | Three-dimensional neck drafting device |
| CN106963537A (en) * | 2017-04-11 | 2017-07-21 | 董晶龙 | A kind for the treatment of of cervical spondylopathy apparatus and its installation method |
| CN109620504A (en) * | 2018-12-19 | 2019-04-16 | 佛山市神风航空科技有限公司 | A kind of lift cervical traction tractor |
| CN110680586A (en) * | 2019-10-22 | 2020-01-14 | 浙江树人学院（浙江树人大学） | Cervical vertebra traction chair and cervical vertebra traction device |
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