CN204688295U - A kind of old electric health-care chair with function of saving oneself and cry for help - Google Patents
A kind of old electric health-care chair with function of saving oneself and cry for help Download PDFInfo
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- CN204688295U CN204688295U CN201520415074.1U CN201520415074U CN204688295U CN 204688295 U CN204688295 U CN 204688295U CN 201520415074 U CN201520415074 U CN 201520415074U CN 204688295 U CN204688295 U CN 204688295U
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Abstract
The utility model discloses a kind of old electric health-care chair with function of saving oneself and cry for help, comprise seat support and the chair back; Rear side below seat support is provided with two drive wheels; Stay bearing plate below seat support is provided with movable motor, controller, storage battery; Be provided with massage motor within the chair back, the chair back be provided with the massager driven by massage motor; The control panel of seat support is provided with control handle and touch display screen; The chair back is provided with the sensors such as ECG monitor, pre ure tra ducer, temperature sensor; Seat support is provided with pressure sensor; Control circuit is provided with within controller; Control circuit comprises the circuit modules such as data acquisition circuit, microprocessor U1, power circuit.A kind of old electric health-care chair with function of saving oneself and cry for help of the present utility model, have can detect user's state of health, the state of health of individual carries out analyzing, monitoring state of health, the intelligence degree advantages of higher of user.
Description
Technical field
The utility model relates to a kind of nursing chair, especially a kind of old electric health-care chair with function of saving oneself and cry for help.
Background technology
Along with the progress of human spiritual civilization and material progress, 21 century enters the epoch enjoyed life, and the very large one side of the high-quality of life staying idle at home life is just embodied in high-quality and hommization furniture.China is the first in the world populous nation, is also the first aged big country.2014, China's more than 60 years old elderly population were by breakthrough 200,000,000, and to about the year two thousand fifty, elderly population will reach 1/3rd of national population.Along with the arrival of China's aging population, the quality of the life of the elderly progressively causes the concern of the whole society.
Health seat is succeeded in developing on common (ergonomics) computer chair basis, has the function of ordinary people's (ergonomics) computer chair, also has health care.At present, electric health-care chair common on market is general all removable, and high-grade nursing chair is with massage machine.But the function ratio of current this nursing chair is more single, and do not have health measuring function, intelligence degree is lower.
In China, the death caused by angiocardiopathy has accounted for about 40% of total PMI, causes great threat to the health of people.Angiocardiopathy there is sudden and dangerous feature, but the research such as Norris also points out that the patient of 72% has significant discomfort before heart arrest occurs, and wherein the Symptoms last of patient of 70% is more than 15min.Therefore, heart real time monitoring is carried out to patient significant to Prevention of cardiovascular disease with the change of Timeliness coverage anomalous ecg.
In daily life, the elderly or disabled person is usually had to use electric health-care chair, can stay at home or activity in community.But current nursing chair, only has health care, there is no rescue function and remote diagnosis function.When user goes out, once meet accident, if there be nobody nearby helps, user cannot save oneself and obtain outside aid.For old man or handicapped person, health may have fluctuation at any time.Usually occur old man feel uncomfortable after remove hospital admission, just may be in the good state of health when medical, such doctor just cannot understand its real health, there occurs which kind of uncomfortable situation before also cannot understanding patient.
Utility model content
The utility model is for avoiding the weak point that exists in above-mentioned prior art, a kind of old electric health-care chair with function of saving oneself and cry for help is provided, with make nursing chair have health monitoring function, also can by health data curve plotting and be supplied to doctor in order to diagnosis.
The utility model be technical solution problem by the following technical solutions.
Have an old electric health-care chair for function of saving oneself and cry for help, its constructional feature is, comprises seat support 1 and the chair back 2; Rear side below described seat support 1 is provided with two drive wheels 3; Being provided with stay bearing plate 5 below described seat support 1, described stay bearing plate 5 being provided with for driving the movable motor of described drive wheel, controller 6, for providing the storage battery 7 of power supply for movable motor and controller 6; The described chair back 2 is arranged on described seat support 1, is provided with massage motor within the described chair back 2, the described chair back 2 is provided with the massager 8 driven by described massage motor; The both sides of described seat support 1 are also provided with two handrails; Described two handrails comprise the first handrail 9 and the second handrail 10; ECG monitor, pre ure tra ducer and temperature sensor is provided with in instrument and equipment case 37 on described handrail;
A pipe link stretched out forward 16 is also fixed with below described stay bearing plate 5, one end of described pipe link 16 is fixed on below described stay bearing plate 5, the other end of described pipe link 16 is provided with a sleeve 26, be inserted with a described vertical rod 19 in described sleeve 26, described vertical rod 19 is coaxial and can rotate in described sleeve with described sleeve 26; The top of described vertical rod 19 is provided with control panel 25, and the lower end of described vertical rod 19 is provided with a wheel flutter 4, drives described vertical rod 19 to rotate and then realize the skew of described wheel flutter about 4, to control the left and right turn of nursing chair by described control panel 25; Described control panel 25 is provided with touch display screen 12 and control handle 11, controls the advance of nursing chair, retrogressing and stopping by described control handle 11, make user that the controling parameters of nursing chair can be set by described touch display screen 12;
Control circuit is provided with within described controller 6; Described control circuit comprises data acquisition circuit, microprocessor U1, power circuit, GPRS radio communication circuit, electric-motor drive unit, GPS positioning unit and loud speaker;
The side of described control panel 25 is provided with an emergency call button 14;
The outside wall surface of described first handrail 9 is provided with a first aid box 35 and instrument and equipment case 37.
A kind of constructional feature with the old electric health-care chair of function of saving oneself and cry for help of the present utility model is also:
Described control handle 11 is provided with a brake button 13, is provided for nursing chair and can brakes at any time when walking stopping.
The described chair back 2 is provided with a U-shaped frame 28 and a solar panel drive motor 29; Described U-shaped frame is provided with solar panel 30, and described solar panel 30 is driven by described solar panel drive motor 29, can rotate around the side of described U-shaped frame 28.
Described U-shaped frame 28 is provided with a camera 36, camera just to seat, the movable and health condition for telemonitoring occupant at any time.
Described electric-motor drive unit comprises the first motor-drive circuit and the second motor-drive circuit;
Described first motor-drive circuit comprises the first stepping motor control chip U2, the first stepper motor driver chip U3, resistance R31 ~ R34, electric capacity C31; Described second motor-drive circuit comprises the second stepping motor control chip U4, the second stepper motor driver chip U5, resistance R35 ~ R38, electric capacity C32; Described Hall element is connected with described microprocessor U1; Described first stepper motor driver chip U3 is connected with described microprocessor U1 by described first stepping motor control chip U2, and described second stepper motor driver chip U5 is connected with described microprocessor U1 by the second stepping motor control chip U4.
Described microprocessor U1 is connected with electric capacity C71 ~ C77, resistance R71 ~ R74, crystal oscillator Y1.
Described power circuit comprises power supply chip U6, resistance R91, electric capacity C91 ~ electric capacity C95, diode 91, light-emitting diode D92 and inductance L 91; The VIN terminal of described power supply chip U6 connects the+24V DC power output end of storage battery, the GND terminal ground of described power supply chip U6, one end of described electric capacity C91 ~ electric capacity C93 connects the VIN terminal of power supply chip U6, the other end ground connection of described electric capacity C91 ~ electric capacity C93; The negative pole of described diode D91 connects the OUTPUT terminal of power supply chip U6, the positive ground of diode D91; One end of described inductance L 91 connects the OUTPUT terminal of power supply chip U6, and the other end of inductance L 91 connects the FEEDBACK terminal of power supply chip U6, and the FEEDBACK terminal of described power supply chip U6 is VDD5V mouth; One end of described electric capacity C94 ~ electric capacity C95 connects the FEEDBACK terminal of power supply chip U6, other end ground connection; One end of described resistance R91 connects the FEEDBACK terminal of power supply chip U6, and the other end is by described light-emitting diode D92 ground connection.
Compared with the prior art, the utility model beneficial effect is embodied in:
A kind of old electric health-care chair with function of saving oneself and cry for help of the present utility model, comprises seat support and the chair back.Be provided with a stay bearing plate below seat support, described stay bearing plate and described seat support are fixedly connected.
Control movable motor by control handle by the control circuit of controller inside, thus realize the advance of nursing chair, retrogressing and stopping.Realize turning to by control panel.
In nursing chair, suitable position arranges various ECG monitor, pre ure tra ducer, temperature sensor, fatty measuring instrument and pressure sensor for detecting user's state of health, also arranges the PM2.5 detecting sensor for detecting air quality.The data that these sensors detect input to controller by data acquisition circuit, are shown by touch display screen by controller to data.Controller embedded software module, touch display screen has human-computer interaction interface, and user, by human-computer interaction interface, obtains individual health data, and obtains health data curve by software, thus analyzes the state of health of individual.
In addition, described touch display screen is also provided with an emergency button.Once user presses emergency button, information is sent to predetermined hand plane No. (lineal relative such as sons and daughters of such as user) by GPRS radio communication circuit, and can automatically put through 120 ambulance calls, the automated audio systems utilizing software module built-in provides location information and the health status information of user to 120 ambulance calls, makes user can obtain first aid within the very first time.
Controller also comprises tele-medicine module, by tele-medicine module, sends the personal information of user automatically to predetermined hospital's diagnosis and therapy system, and by individual health data timing transmission to hospital's diagnosis and therapy system.Doctor can transfer personal information and the health data of user from hospital's diagnosis and therapy system, the state of health of regular monitoring user.Once find that user may exist disease risk, namely medical treatment result is sent by hospital's diagnosis and therapy system to user, and send to predetermined hand plane No. by GPRS radio communication circuit simultaneously, remind the relatives of user to note the state of health of user, to deliver to hospital's diagnosis and treatment in time.
The elderly person of no family that current most man at an advanced age, handicapped old man and shortage are accompanied and attended to generally wishes often to go out to walk about, and lives an easy life in old age in joyful environment; Can link up with children in time and promote emotional affection and taken care of, elimination feeling of lonely; When burst disease, can call for help in time again, 120 first-aid personnels and the children relatives very first time can arrive in relief, conscientiously increase the sense of security of existence.
A kind of old electric health-care chair with function of saving oneself and cry for help of the present utility model, have can detect user's state of health, the state of health of individual carries out analyzing, monitoring state of health, the intelligence degree advantages of higher of user.
Accompanying drawing explanation
Fig. 1 is a kind of block diagram with the old electric health-care chair of function of saving oneself and cry for help of the present utility model.
Fig. 2 is a kind of front view with the control handle of the old electric health-care chair of function of saving oneself and cry for help of the present utility model.
Fig. 3 is the A-A cutaway view of Fig. 2.
Fig. 4 is a kind of left view with the control handle of the old electric health-care chair of function of saving oneself and cry for help of the present utility model.
Fig. 5 is a kind of birds-eye view with the control handle of the old electric health-care chair of function of saving oneself and cry for help of the present utility model.
Fig. 6 is a kind of control schematic diagram with the controller of the old electric health-care chair of function of saving oneself and cry for help of the present utility model.
Fig. 7 is a kind of system module figure with the controller of the old electric health-care chair of function of saving oneself and cry for help of the present utility model.
Fig. 8 is a kind of circuit diagram with the electric-motor drive unit of the controller of the old electric health-care chair of function of saving oneself and cry for help of the present utility model.
Fig. 9 is a kind of circuit diagram with the microprocessor U1 of the controller of the old electric health-care chair of function of saving oneself and cry for help of the present utility model.
Figure 10 is a kind of circuit diagram with the power circuit of the controller of the old electric health-care chair of function of saving oneself and cry for help of the present utility model.
Figure 11 is a kind of circuit diagram with the data acquisition circuit of the controller of the old electric health-care chair of function of saving oneself and cry for help of the present utility model.
Figure 12 is the constitution diagram of a kind of solar panel with the old electric health-care chair of function of saving oneself and cry for help of the present utility model when blocking seat support.
Figure 13 is the constitution diagram of a kind of solar panel with the old electric health-care chair of function of saving oneself and cry for help of the present utility model when not blocking seat support.
Label in accompanying drawing 1-12: 1 seat support, 2 chair back, 3 drive wheels, 4 wheel flutters, 5 stay bearing plates, 6 controllers, 7 storage batterys, 8 massagers, 9 first handrails, 10 second handrails, 11 control handles, 12 touch display screens, 13 brake button, 14 emergency call button, 15 bolsters, 16 pipe links, 17 pedal fixed links, 18 stretchers, 19 vertical rods, 20 holding rods, 21 bases, 22 handle pivoted housings, 23 permanent magnetism blooms, 24 Hall elements, 25 control panels, 26 sleeves, 27 auxiliary rods, 28U shape frame, 29 solar panel drive motor, 30 solar panels, 31 sleeve pipes, 32 rotating shafts, 33 montants, 34 steel cylinders, 35 first aid boxs, 36 cameras, 37 instrument and equipment casees.
Below by way of detailed description of the invention, and the utility model is described in further detail by reference to the accompanying drawings.
Detailed description of the invention
See Fig. 1, a kind of old electric health-care chair with function of saving oneself and cry for help of the present utility model, comprises seat support 1 and the chair back 2; Rear side below described seat support 1 is provided with two drive wheels 3; Being provided with stay bearing plate 5 below described seat support 1, described stay bearing plate 5 being provided with for driving the movable motor of described drive wheel, controller 6, for providing the storage battery 7 of power supply for movable motor and controller 6; The described chair back 2 is arranged on described seat support 1, is provided with massage motor within the described chair back 2, the described chair back 2 is provided with the massager 8 driven by described massage motor; The both sides of described seat support 1 are also provided with two handrails; Described two handrails comprise the first handrail 9 and the second handrail 10; ECG monitor, pre ure tra ducer and temperature sensor is provided with in instrument and equipment case 37 on described handrail;
A pipe link stretched out forward 16 is also fixed with below described stay bearing plate 5, one end of described pipe link 16 is fixed on below described stay bearing plate 5, the other end of described pipe link 16 is provided with a sleeve 26, be inserted with a described vertical rod 19 in described sleeve 26, described vertical rod 19 is coaxial and can rotate in described sleeve with described sleeve 26; The top of described vertical rod 19 is provided with control panel 25, and the lower end of described vertical rod 19 is provided with a wheel flutter 4, drives described vertical rod 19 to rotate and then realize the skew of described wheel flutter about 4, to control the left and right turn of nursing chair by described control panel 25; Described control panel 25 is provided with touch display screen 12 and control handle 11, controls the advance of nursing chair, retrogressing and stopping by described control handle 11, make user that the controling parameters of nursing chair can be set by described touch display screen 12;
Control circuit is provided with within described controller 6; Described control circuit comprises data acquisition circuit, microprocessor U1, power circuit, GPRS radio communication circuit, electric-motor drive unit, GPS positioning unit and loud speaker;
The side of described control panel 25 is provided with an emergency call button 14; Emergency call button is positioned at the left side of control panel, once cause danger, user can press emergency button, first aid information can be sent to the relatives of user and 120 ambulance calls, automatic transmission user personal information, electronic health record, Disease index and GPS locating data, to make 120 medical personnel of emergency authorities arrive understanding of front very first time correlation circumstance, formulate emergency plan, guiding via network is saved oneself, and wins valuable therapeutic time.
The outside wall surface of described first handrail 9 is provided with a first aid box 35 and instrument and equipment case 37.Described first handrail is arranged at the right side of nursing chair, and handrail outer wall is provided with the first aid box of a drawer type, is placed with daily urgently needed medicine or the auxiliary items such as suxiao jiuxin pills, anti-heatstroke medicine, ethanol for disinfection, adhesive bandage in first aid box.First aid box is arranged on right side, user-friendly, user can be saved oneself under emergency condition.
Described instrument and equipment case 37 is all positioned in the outside wall surface of handrail with described first aid box, when specifically implementing, first aid box 35 and instrument and equipment case 37 can be separately positioned on the outside of two handrails, also can be arranged on the lateral surface of same handrail.In instrument and equipment case 37, the portable medical detecting instrument such as bracelet-shaped blood-pressure gage, portable ECG monitor, Intelligent temperature measurement instrument, can detect for old man or patient at any time.These instruments are all connected by Interface and Controler, the data recorded are transferred to the tele-medicine module in controller all at any time, at any time data stored by tele-medicine module and send to hospital's diagnosis and therapy system, make doctor can obtain patient at untimely ecg wave form, heart rate, to carry out treatment effect exactly.
As Fig. 1, old electric health-care chair of the present utility model, comprises seat support and the chair back.Be provided with a stay bearing plate below seat support, described stay bearing plate and described seat support are fixedly connected.Connect two drive wheels by axletree below seat support, described control handle controls movable motor by the control circuit of controller inside, drives axletree to rotate by movable motor, thus realize nursing chair advance, retreat, turn to and stop.Described axletree is pivotally arranged under described stay bearing plate, and is driven by movable motor.During concrete enforcement, can select the type of drive between movable motor and axletree as the case may be, can select gear transmission or chain transmission mode, be good to select chain transmission mode.In nursing chair, suitable position arranges various ECG monitor, pre ure tra ducer, temperature sensor, fatty measuring instrument and pressure sensor for detecting user's state of health, also arranges the PM2.5 detecting sensor for detecting air quality.Pressure sensor on described seat support 1 is for measuring user's body weight.
The data that these sensors detect input to controller by data acquisition circuit, are shown by touch display screen by controller to data.Controller embedded software module, touch display screen has human-computer interaction interface, and user, by human-computer interaction interface, obtains individual health data, and obtains health data curve by software, thus analyzes the state of health of individual.In addition, the left side of described control panel is also provided with an emergency button.Once user presses emergency button, information is sent to predetermined hand plane No. (lineal relative such as sons and daughters of such as user) by GPRS radio communication circuit, and put through 120 ambulance calls, the automated audio systems utilizing software module built-in provides location information and the health status information of user to 120 ambulance calls.Controller inside includes tele-medicine module, by tele-medicine module, sends the personal information of user automatically to predetermined hospital's diagnosis and therapy system, and by individual health data timing transmission to the diagnosis and therapy system of hospital.Doctor can transfer personal information and the health data of user from hospital's diagnosis and therapy system, the state of health of regular monitoring user.Once find that user may exist disease risk, namely medical treatment result is sent by hospital's diagnosis and therapy system to user, and send to predetermined hand plane No. by GPRS radio communication circuit simultaneously, remind the relatives of user to note the state of health of user, to deliver to hospital's diagnosis and treatment in time.The position of nursing chair can be known at any time by GPS positioning unit.
The preferred Holter of ECG monitor (hot) ECG monitor.Holter ECG monitor is connected with described microprocessor U1, can in real time by electrocardio monitoring data transmission to microprocessor U1, hospital's diagnosis and therapy system is sent to by tele-medicine module by microprocessor U1, make doctor can obtain the electrocardiogram (ECG) data of user in real time, the state of health of user is monitored.Microprocessor U1 is also by electrocardiogram (ECG) data real-time storage simultaneously, to supply the reference frame of doctor's behaviours diagnosis.
When patient feels under the weather at home, can sit in nursing chair, be monitored in time by ECG monitor, and automatic analysis diagnoses out arrhythmia cordis kind, ecg wave form, heart rate and diagnostic result are clearly presented on screen, testing result can do diagnosis in early stage by assist physician, accurately and reliably.Testing result also simultaneously by tele-medicine module, automatically sends to predetermined hospital's diagnosis and therapy system, makes doctor can obtain patient at untimely ecg wave form, heart rate, to carry out treatment effect exactly.
Pre ure tra ducer can select digital sphygmomanometer, and digital sphygmomanometer has wrist-and arm-type dividing, and finally presents measurement numerical value in digital form.Digital sphygmomanometer can directly send the blood pressure data of measurement to predetermined receiving end by GPRS module wherein, the mode that also can be communicated by wire communication or wireless WIFI passes to controller, by controller, analyzing and processing is carried out to blood pressure data, and abnormal blood pressure data are recorded and preserved, abnormal blood pressure data are sent to hospital's diagnosis and therapy system by tele-medicine module simultaneously, diagnosed by doctor.
During concrete enforcement, also can foldable solar panel be set on the chair back.The not used time, within the cell panel income chair back.When being under sunlight, can pull out solar panel, solar panel is positioned at directly over seat support, and one carrys out shielded from sunlight, avoids sunlight directly to shine user, and two provide solar panel to be battery charge, have good environmental protection characteristic.
Old electric health-care chair of the present utility model, by the state of health of sensor system senses user, and state of health is monitored, in real time health data is drawn out healthy curve, simultaneously by GPRS radio communication circuit accessing Internet, by health data transmitting to hospital's diagnosis and therapy system, make doctor can monitor the health status of user in real time.Once cause danger, user can press emergency button, can send first aid information to the relatives of user and 120 ambulance calls, the very first time can obtain relief in an emergency situation to make user.)
Described control handle 11 is provided with a brake button 13, is provided for nursing chair and can brakes at any time when walking stopping.Below old electric health-care chair, automatically controlled autobrake system is set.By the control of brake button, the brake of nursing chair can be realized.
The described chair back 2 is provided with a U-shaped frame 28 and a solar panel drive motor 29; Described U-shaped frame is provided with solar panel 30, and described solar panel 30 is driven by described solar panel drive motor 29, can rotate around the side of described U-shaped frame 28.
Described U-shaped frame 28 is provided with a camera 36, camera just to seat, the movable and health condition for telemonitoring occupant at any time.
As Figure 12-13, the chair back 2 is provided with a solar panel and supporting construction thereof.U-shaped frame on the chair back 2 is one and is welded by three steel rod members, and the peristome of U-shaped frame is fixed on the chair back.Steel rod member is steel pipe, square steel column or angle steel.U-shaped chord position directly over described seat support, and is arranged in the mode of the seat being parallel to described seat support.On the steel rod member of the side of described U-shaped frame, be provided with two sleeve pipes 31.Described each sleeve pipe 31 is provided with a montant 33, the top of described montant is welded with steel cylinder 34, rotating shaft 32 within two steel cylinders through and coordinate with revolute pair with described steel cylinder, also bearing can be set in steel cylinder during concrete enforcement, by bearing, rotating shaft can be rotated within steel cylinder.One end of rotating shaft is connected by coupler with solar panel drive motor, and can rotate under the driving of solar panel drive motor.
Described solar panel is fixed in described rotating shaft, rotating shaft can be driven by solar panel drive motor, solar panel is along with described axis of rotation, thus solar panel can be made can to shelter from described U-shaped frame, thus make sun direct projection on described solar panel, simultaneously for the user on seat support keeps the sun off or keeps off the rain on rainy day.When needing, by the angle between adjustment solar panel and seat, user can being got sun, also by solar panel, solar power is converted to electric energy simultaneously, is battery charge.Thus, even in when going out, storage battery does not have electricity, be battery charge by solar panel.Even if enough electric energy can not be obtained go home, also user can be made to notify its household by the GPRS radio communication circuit of touch display screen and controller and GPS positioning unit, inform its position of household, make household can succour user in time, make user be unlikely to fall completely helpless state.Therefore, nursing chair of the present utility model can be suitable for the old or handicapped handicapped person's use of body, makes handicapped person while going out, can relate to household in time and obtain relief.Figure 12 is the constitution diagram of solar panel when blocking seat support, and Figure 13 is the constitution diagram of solar panel when not blocking seat support.
Camera 36 is located at described U-shaped frame front end, namely away from the side of the described chair back.Described camera 36 is connected with between described controller, for taking the video of the user on seat support.The video of acquisition is sent in specific terminal by controller by this camera in real time, as on specific mobile phone.Family members can be made thus in real time to the monitoring state of user, once find that user is not in good state or has sick sign, can to contact user immediately.Once find that user is in the state needing first aid, obtain the location information of user, dial 120 and carry out first aid.
Therefore, nursing chair of the present utility model, long distance monitoring can not only be realized, Timeliness coverage is abnormal, succours, and in case of emergency, occupant carries out active oneself relief by emergency call button and first aid box and calls for help, also obtain outside aid by camera, can guarantee that user can obtain relief in several ways thus, avoid occurring as the patient of user or the unmanned relief of old man and causing the death that meets accident.
During concrete enforcement, the position such as solar panel drive motor, steel cylinder, rotating shaft is provided with the structure such as rain-proof cover, cover of dust, and during to make the rainy day, nursing chair of the present utility model can not affect use because of drenching with rain.
Described electric-motor drive unit comprises the first motor-drive circuit and the second motor-drive circuit;
Described first motor-drive circuit comprises the first stepping motor control chip U2, the first stepper motor driver chip U3, resistance R31 ~ R34, electric capacity C31; Described second motor-drive circuit comprises the second stepping motor control chip U4, the second stepper motor driver chip U5, resistance R35 ~ R38, electric capacity C32; Described Hall element is connected with described microprocessor U1; Described first stepper motor driver chip U3 is connected with described microprocessor U1 by described first stepping motor control chip U2, and described second stepper motor driver chip U5 is connected with described microprocessor U1 by the second stepping motor control chip U4.
If Fig. 8 is the circuit diagram of electric-motor drive unit, the connection of each components and parts as shown in Figure 8.Electric capacity C31, resistance R31 and resistance R32 are all connected with described first stepping motor control chip U2, and resistance R33 and resistance R34 is all connected between U2 and U3.Electric capacity C32, resistance R35 and resistance R36 are all connected with described second stepping motor control chip U4, and resistance R37 and resistance R38 is all connected between U4 and U5.First stepper motor driver chip U3 connects movable motor, and described second stepper motor driver chip U5 connects massage motor.The control signal sent by microprocessor U1 controls the rotating of movable motor and massage motor.
During concrete enforcement, when needing to arrange solar panel drive motor, also be provided with the driving circuit of the 3rd motor-drive circuit as solar panel drive motor, the 3rd motor-drive circuit structure is identical with the second motor-drive circuit with the first motor-drive circuit.
The multifunctional circuit that first and second motor-drive circuits are all made up of drived control logic chip L297 and chip L298N.The I/O mouth output control pulse of microprocessor U1, processes through L297, L298N driving circuit paired pulses, exports the drive singal of energy direct controlling and driving motor or stepping motor.First stepping motor control chip U2 and the second stepping motor control chip U4 is L297.L297 is the stepping motor nonshared control unit that Italian SGS semiconductor company produces, it can produce 4 phase control signals, can be used for the bipolar and four phase single-phase stepper motors of computer-controlled two-phase, can with single four clapping, two four to clap, four-phase eight-step mode control step motor.PWM chopper circuit in chip can regulate the electric current in the motor winding in stepping motor winding under switching mode.This integrated circuit have employed the I2L technology of the analog/digital compatibility of SGS company, uses the power line voltage of 5V, the connection of whole signal all with TFL/CMOS or open-collector transistor compatible.L297 chip is the Step-motor Control device of the dual inline type plastic-packaged with 20 pins.It can produce four phase drive singal, can drive the bipolar or four phase unipolar stepper motors of microprocessor U1 control two-phase by modes such as half step (eight clap) and full steps (four clap).The PWM chopper of this chip internal allows control step motor winding current under the pattern of pass, because phase sequential signal is also produced by inside, therefore it only needs clock, direction and mode input signal just can control step electrical motor, can alleviate the burden of microprocessor and program design.
First stepper motor driver chip U3 and the second stepper motor driver chip U5 is L298N.L298N is a kind of high potential, the big current motor drive ic that ST company produces.This chip adopts 15 pin encapsulation.Principal feature is: operating voltage is high, and maximum operating voltage can reach 46V; Outgoing current is large, and instantaneous peak current can reach 3A, and continuous firing electric current is 2A; Include the high-voltage large current full-bridge type actuator of two H bridges, can be used for driving DC motor and the inductive load such as stepper motor, relay coil; Adopt standard logic levels signal control; There are two enable control ends, allow when not affecting by incoming signal or forbid that devices function has a logic power input end, internal logic circuit part is worked at lower voltages; Can external detection resistance, variable quantity is fed back to control circuit.Use L298N chip drives motor, this chip can drive two two-phase electric machines, also can drive four phase motors, directly can carry out regulation output voltage by power supply; And directly can provide signal with the I/O mouth of microprocessor U1, circuit is simple, uses more convenient.
Described microprocessor U1 is connected with electric capacity C71 ~ C77, resistance R71 ~ R74, crystal oscillator Y1.
As the circuit diagram that Fig. 9 is microprocessor U1, the connection of each components and parts as shown in Figure 9.Microprocessor U1 function receives sampled value, by algorithm process, and calculating voltage effective value, current effective value, energy value, active volt-amperes, reactive volt-amperes, power factor, and result of calculation is sent to communication circuit.The D78F8053 type integrated circuit that microcontroller selects Renesas Electronics Corporation (Renesas ElectronicsCompany) to produce.This chip has 64 pins, and inside is integrated with function and the peripheral hardwares such as serial interface, Timer/Counter, A/D such as house dog, general purpose I/O, two UART.D78F8053 chip internal comprises 10bit successive approximation A/D converter, 24bit Δ Σ type A/D converter and power calculation circuit, quality of power supply metering circuit and digital frequency conversion circuit, calculates the active volt-amperes of measured signal, reactive volt-amperes and the parameter such as electric current, voltage effective value by the inner related register of control program configuring chip.D78F8053 chip provides the data space of 64KB, comprising the writing of the general purpose register of 32Byte and 32KB, erasable FLASH storage space, is mainly used to store correction parameter, electric energy accumulated value etc.
Microprocessor U1 is also provided with expansion interface and WIFI communication circuit in addition, the multiple intellectual monitoring instrument that human health status is monitored can be connected, there is good scalability, such as by RS232 or WIFI pattern and digital sphygmomanometer, data exchange is carried out between the equipment such as ECG monitor and temperature sensor, and tentatively judged by the parameter of tele-medicine module to monitoring that controller inside is arranged, once discovery heart rate, electrocardio, the data exception such as temperature or blood pressure, corresponding abnormal data is sent to predetermined hospital's diagnosis and therapy system at once, diagnosed timely by doctor.
As shown in Figure 10, described power circuit comprises power supply chip U6, resistance R91, electric capacity C91 ~ electric capacity C95, diode 91, light-emitting diode D92 and inductance L 91; The VIN terminal of described power supply chip U6 connects the+24V DC power output end of storage battery, the GND terminal ground of described power supply chip U6, one end of described electric capacity C91 ~ electric capacity C93 connects the VIN terminal of power supply chip U6, the other end ground connection of described electric capacity C91 ~ electric capacity C93; The negative pole of described diode D91 connects the OUTPUT terminal of power supply chip U6, the positive ground of diode D91; One end of described inductance L 91 connects the OUTPUT terminal of power supply chip U6, and the other end of inductance L 91 connects the FEEDBACK terminal of power supply chip U6, and the FEEDBACK terminal of described power supply chip U6 is VDD5V mouth; One end of described electric capacity C94 ~ electric capacity C95 connects the FEEDBACK terminal of power supply chip U6, other end ground connection; One end of described resistance R91 connects the FEEDBACK terminal of power supply chip U6, and the other end is by described light-emitting diode D92 ground connection.
If Figure 10 is the circuit diagram of power circuit, the connection of each components and parts as shown in Figure 10.Power circuit provides+5V power supply for system, transfers the voltage of storage battery to stable+5V power supply.Power supply chip U6 is LM2596.LM2596 series is the 3A electric current output buck switching mode integrated voltage-stabilized chip that Texas Instrument (TI) produces; it includes fixed frequency oscillator (150KHZ) and benchmark voltage stabilizer (1.23v), and has perfect protective circuit, current limit, Thermal shutdown circuit etc.This device is utilized only to need few peripheral components just can form efficient mu balanced circuit.What provide has: multiple voltage class such as 3.3V, 5V, 12V and adjustable (-ADJ) product.Can select as required during embody rule: the level pressure output type such as LM2596 adjustable electric die mould, LM2596-5V, LM2596-3.3.LM2596 supports that output is adjustable.
If Figure 11 is the circuit diagram of data acquisition circuit, the connection of each components and parts as shown in figure 11.
Data acquisition circuit comprises shunting chip U7, resistance R101 ~ R1011, pizo-resistance RV101, electric capacity C101 ~ C108, splicing ear P101, splicing ear P102 and splicing ear P103.Pizo-resistance RV101, splicing ear P101, splicing ear P102 are all connected with the pin 1 of described shunting chip U7, and described splicing ear P103 is connected with the pin 2 of described shunting chip U7.The terminal I+ of shunting chip U7 connects the pin 11 of microprocessor U1 by resistance R106, the terminal I-of shunting chip U7 connects the pin 12 of microprocessor U1 by resistance R107;
One end of electric capacity C105 connects the pin 11 of microprocessor U1, the other end ground connection of electric capacity C105; One end of described electric capacity C106 connects the pin 12 of microprocessor U1, the other end ground connection of electric capacity C106; One end of resistance R1010 connects the pin 8 of microprocessor U1, the other end ground connection of resistance R1010; One end of resistance R1011 connects the pin 9 of microprocessor U1, the other end ground connection of resistance R1011; One end after electric capacity C104 is parallel with one another with electric capacity C108 is connected the pin 10 of microprocessor U1, the other end ground connection after electric capacity C104 and electric capacity C108 is parallel with one another; Electric capacity C101 is connected the pin 5 of microprocessor U1 with the one end after electric capacity 102 parallel connection, the other end ground connection after electric capacity C101 and electric capacity 102 parallel connection; Electric capacity C104 is connected the pin 6 of microprocessor U1 with the one end after resistance R109 parallel connection, the other end ground connection after electric capacity C104 and resistance R109 parallel connection; One end of resistance R101 is connected the pin 7 of microprocessor U1 successively with resistance R105 by resistance R102, resistance R103, resistance R104; Electric capacity C103 is connected the pin 7 of microprocessor U1 with the one end after resistance R108 parallel connection, the other end ground connection after electric capacity C103 and resistance R108 parallel connection.
The function of data acquisition circuit carries out voltage, current sample to the output signal of each sensor.Voltage signal gathers port by the voltage analog transferring to microprocessor U1 after step-down rectifying circuit, realizes voltage signal sampling; Current signal gathers port by the current analog transferring to microprocessor U1 after shunting chip U7 and step-down rectifying circuit, realizes current sample.After microprocessor U1 receives voltage, current sampling signal, according to embedded program, be stored in the internal storage of controller after data are processed, or show on touch display screen.
As shown in Figure 1, old electric health-care chair of the present utility model, described backrest 2 is provided with a bolster 15.Be pasted together by VELCRO between described bolster 15 and described backrest 2.Described pipe link 16 is provided with two stretchers 18 in left and right by two pedal fixed links 17, makes nursing chair of the present utility model more comfortable.Described sleeve 26 is also fixedly connected on described seat support 1 by an auxiliary rod 27.In cavity between described seat support 1 and described stay bearing plate 5, be provided with the assemblies such as described storage battery, movable motor, controller.
Described control handle 11 comprises holding rod 20 and base 21, and the lower end of described holding rod 20 is inserted within described base 21, and the top of described base 21 is provided with handle pivoted housing 22, is provided with permanent magnetism bloom 23 and Hall element 24 within described handle pivoted housing 22; Described permanent magnetism bloom 23 is arranged on described handle pivoted housing 22, and described Hall element 24 is arranged on described holding rod 20.Base 21 is embedded within described control panel 25.
As shown in Figure 2-5, control handle 11 comprises holding rod 20 and base 21, and the two corresponding position installs a pair Hall element (i.e. Hall element) and permanent magnetism bloom (i.e. magnet steel) respectively.When the action of handle pivoted housing, the relative position change of Hall element and magnet steel, the signal that sensor sends changes, when handle is positioned at meta with its distance change, its output signal is between 2.5 ± 0.3V, when operating this manipulation position, handle pivoted housing rotates, and its output signal is between 2.8 ~ 4.4V or 0.6 ~ 2.2V, output signal with operation amplitude increase and away from 2.5V, handle top button is pressed and is, be meta shut-down operation, now output signal is 2.5V.Bar handle position transduser, the signal that namely Hall element sends changes with the change of its actuated position.
Described controller is provided with key hole, is realized the source switch of nursing chair by key.For guaranteeing safety, at opening power and prestart, controller need confirm that each actuated position is positioned at meta, otherwise does not enter row lock protection at meta to nursing chair with holding rod 20, forbids its work.When pressing brake button 13, controller transmits control signal to movable motor and damper brake, has damper brake to be automatically locked drive wheel, nursing chair is stopped to movable motor power-off.The operational motion of control handle 11 sends to microprocessor U1, and the control signal that microprocessor U1 exports is respectively by the action that moves forward and backward of the motor-drive circuit movable motor be made up of chip L297 and L298 and transistor.
In space on the lower supporting plate that controller is positioned over seat support.Be provided with SIM slot within controller, SIM is inserted in described controller, by the GPRS radio communication circuit that controller is built-in, realize connection and the radio communication of wireless network.The GPS positioning unit that controller is built-in, sends to microprocessor U1 by location information in real time.Controller internal memory, realizes the control of whole nursing chair by the man-machine interface of software module and touch display screen.
As the hardware configuration schematic diagram that Fig. 6 is controller of the present utility model.Electrocardio monitor, digital sphygmomanometer is all connected with data acquisition circuit with temperature sensor, the health data of user is gathered by data acquisition circuit, then microcontroller U1 is sent to, by software module, analyzing and processing and display are carried out to data by microcontroller U1, and data are sent to the receiving terminal of the hospital preset by GPRS radio communication circuit, the software module of hospital's diagnosis and therapy system is established in hospital's receiving terminal, doctor is sent the data to after receiving data, by doctor health data analyzed and diagnose, thus remote diagnosis is carried out to patient.Solar panel is arranged at nursing chair top, and by the angle between electric machine control solar panel and seat, can thus be user and shelter from heat or light or get sun, and controls convenient.Solar panel also can charge when storage battery does not have electricity, and user is sought help by emergency call button or touch display screen, is in helpless state to avoid user when not having electricity.Storage battery provides driving power for various circuit and motor.User controls to turn to by control panel, controls moving forward and backward of nursing chair by the control handle on control panel.Control panel is also provided with emergency call button and touch display screen.As Figure 13, touch display screen selects flip structure, and user watches video by screen, listens to the music or go to the opera, and also carries out video calling, so that user contacts household by the built-in video calling module of controller and outside.
Meanwhile, microcontroller U1, according to external command, controls movable motor, massage motor and solar panel drive motor, controls walking, massage and solar panel.In addition, the built-in GPS module of controller, can the location information of nursing chair be obtained at any time and when needs, location information be sent, to make the household of hospital's first aid 120 or user can the position of user, be convenient to find user in the very first time when first aid.GPRS radio communication circuit makes controller can be accessed by 4G network, by 4G net connection household, obtains video and music, access hospital diagnosis and therapy system etc.
As the software module schematic diagram that Fig. 7 is controller, comprise main program and various supplementary module.Data and processing data is stored by DBM, by the swapping data of tele-medicine module and hospital's diagnosis and therapy system, gone to the opera by see a film TV and listening to the music of video playback module and audio playing module, by emergency call module and alarm control module to household, hospital sends alarm to notify that user is in a state of emergency, user's very first time is made to obtain outside aid, man-machine interface is provided to operate various functional module by touch display screen control module, by motor control module, various motor is controlled, make household can monitor the state of user in real time by video monitoring module, GPS module can obtain the location information of nursing chair at any time and location information be sent when needs, video calling module also can make user can at any time with household's video calling.
A kind of old electric health-care chair with function of saving oneself and cry for help of the present utility model, develop for aging population, man at an advanced age, handicapped old man, Empty nest elderly are on the increase, a kind of old man of being convenient to of exploitation lie fallow trip, be convenient to be closing the distance with children promote emotional affection, realize long distance monitoring, convenient the elderly's electric health-care chair of calling for help relief in time.This product is on existing multiple health of older persons chair function basis, utilizes recent development, installs Intelligent electric actuating device, music video playing device and photovoltaic charging system additional, is convenient to the elderly and goes on a journey leisure.Nursing chair increases newly simultaneously and be provided with intelligent information platform, the carry-on detector of the bracelet-shaped blood pressure rhythm of the heart and the contour integrated custodial care facility of portable cardiac monitor, alarming for help module, GPS locating module, video surveillance devices and network transmission system, gathered by the monitoring of the real-time Human Physiology relevant data to the riding people of nursing chair, store and the remote transmission of video tracking and data, realize the monitoring of nursing chair riding person health status strange land video and remote diagnosis.Particularly when the riding people of nursing chair happens suddenly the acute diseases such as cardiovascular and cerebrovascular, the panalarm in nursing chair can be utilized to send warning to children relatives in time, so that the children relatives very first time is on the scene, tissue is sued and laboured, simultaneity factor can call out 120 nearby, cry for help to first-aid centre, by personal patient information, electronic health record and GPS locating data are transferred to treatment hospital and doctor, allow doctor's very first time understand and grasp conditions of patients, patient also can utilize the conversational system of equipment timely Xiang doctor's readme illness, and under doctor's remote guide, the first-aid equipment that nursing chair configures is utilized to save oneself, shorten patient without the treatment phase, the quality time is striven for for follow-up medical personnel rescue, win success chance.
A kind of old electric health-care chair with function of saving oneself and cry for help of the present utility model, has following advantage.
1, advanced Internet video, facilitates long distance monitoring.Make children relatives can understand the elderly's health and whereabouts by long-distance video in real time, realize long distance monitoring.
2, portable monitoring equipment, facilitates remote diagnosis.The carry-on detector of the bracelet-shaped blood pressure rhythm of the heart of Equipments Setting and the contour integrated custodial care facility of portable cardiac monitor, the medical indication such as blood pressure, the rhythm of the heart, electrocardio, body temperature of riding people can be monitored at any time, detect data and pass through remote transmission, doctor can be allowed to understand riding people's health condition the very first time, carry out diagnoses and treatment in time.
3, calibration package, conveniently medical calling for help easily.When occurring critical, riding people only needs simply to operate by emergency button, just can utilize advanced GPRS information transmission means, give 120 first-aid centres by preset riding people's personal information, electronic health record and real-time GPS locating data by Internet Transmission, relief can be obtained in the very first time.
4, fast speed information transmission, facilitates relatives to call out.When occurring critical, riding people only need operate emergency button simply, just can utilize the GPRS information transmission means of advanced person, to the children relatives mobile phone transmission alarm message preset, facilitates the children relatives very first time tissue that is on the scene to sue and labour.
5, perfect first-aid equipment, facilitates patient to save oneself.Utilize the first aid box that nursing chair is equipped with, patient from main separation medicine or medication under remote doctor instructs, can realize emergency self-saving, for follow-up rescue gains time and chance.
6, supporting voice system, facilitates interactive conversation.In intelligent information platform, be provided with voice call function, riding people can carry out call with the medical institutions of setting whenever and wherever possible and seek advice from, and the children relatives communication with setting, is closing the distance, and eliminates feeling of lonely, strengthens the sense of security.
7, the electric device of intelligence, facilitates control operation.Nursing chair has installed electric driver and intelligent control system additional, and control handle controls movable motor by the intelligent control program of circuit, realizes the advance of nursing chair, retreats, turns to and brake, riding people being gone on a journey easy flexibly and easily.
8, hommization recreational facilities, are convenient to live an easy life in old age.Touch music video plays facility, allows the elderly enjoy life in joyful environment, is full of enjoyment, fully demonstrate the love to the elderly.The elderly is facilitated to go on a journey and amusement and recreation.
9, unique photovoltaic devices, equipment of being convenient to is met an urgent need.Design and installation photovoltaic charging system on sunshade, can avoid battery energy storage to exhaust impact emergent, guarantee that key equipment can continued power.
To those skilled in the art, obvious the utility model is not limited to the details of above-mentioned one exemplary embodiment, and when not deviating from spirit of the present utility model or essential characteristic, can realize the utility model in other specific forms.Therefore, no matter from which point, all should embodiment be regarded as exemplary, and be nonrestrictive, scope of the present utility model is limited by claims instead of above-mentioned explanation, and all changes be therefore intended in the implication of the equivalency by dropping on claim and scope are included in the utility model.Any Reference numeral in claim should be considered as the claim involved by limiting.
In addition, be to be understood that, although this specification sheets is described according to embodiment, but not each embodiment only comprises an independently technical scheme, this narrating mode of specification sheets is only for clarity sake, those skilled in the art should by specification sheets integrally, and the technical scheme in each embodiment also through appropriately combined, can form other embodiments that it will be appreciated by those skilled in the art that.
Claims (7)
1. there is an old electric health-care chair for function of saving oneself and cry for help, it is characterized in that, comprise seat support (1) and the chair back (2); The rear side of described seat support (1) below is provided with two drive wheels (3); Described seat support (1) below is provided with stay bearing plate (5), described stay bearing plate (5) is provided with for driving the movable motor of described drive wheel, controller (6), for providing the storage battery (7) of power supply for movable motor and controller (6); The described chair back (2) is arranged on described seat support (1), and the described chair back is provided with massage motor within (2), the described chair back (2) is provided with the massager (8) driven by described massage motor; The both sides of described seat support (1) are also provided with two handrails; Described two handrails comprise the first handrail (9) and the second handrail (10); ECG monitor, pre ure tra ducer and temperature sensor is provided with in instrument and equipment case (37) on described handrail;
Described stay bearing plate (5) below is also fixed with a pipe link stretched out forward (16), described stay bearing plate (5) below is fixed in one end of described pipe link (16), the other end of described pipe link (16) is provided with a sleeve (26), be inserted with a described vertical rod (19) in described sleeve (26), described vertical rod (19) is coaxial and can rotate in described sleeve with described sleeve (26); The top of described vertical rod (19) is provided with control panel (25), the lower end of described vertical rod (19) is provided with a wheel flutter (4), drive described vertical rod (19) to rotate by described control panel (25) and then realize the skew of described wheel flutter (4) left and right, to control the left and right turn of nursing chair; Described control panel (25) is provided with touch display screen (12) and control handle (11), control the advance of nursing chair, retrogressing and stopping by described control handle (11), make user that the controling parameters of nursing chair can be set by described touch display screen (12);
Described controller is provided with control circuit within (6); Described control circuit comprises data acquisition circuit, microprocessor U1, power circuit, GPRS radio communication circuit, electric-motor drive unit, GPS positioning unit and loud speaker;
The side of described control panel (25) is provided with an emergency call button (14);
The outside wall surface of described first handrail (9) is provided with a first aid box (35) and instrument and equipment case (37).
2. a kind of old electric health-care chair with function of saving oneself and cry for help according to claim 1, it is characterized in that, described control handle (11) is provided with a brake button (13), is provided for nursing chair and can brakes at any time when walking stopping.
3. a kind of old electric health-care chair with function of saving oneself and cry for help according to claim 1, it is characterized in that, the described chair back (2) is provided with a U-shaped frame (28) and a solar panel drive motor (29); Described U-shaped frame () is provided with solar panel (30), described solar panel (30) is driven by described solar panel drive motor (29), can rotate around the side of described U-shaped frame (28).
4. a kind of old electric health-care chair with function of saving oneself and cry for help according to claim 3, it is characterized in that, described U-shaped frame (28) is provided with a camera (36), camera just to seat, the movable and health condition for telemonitoring occupant at any time.
5. a kind of old electric health-care chair with function of saving oneself and cry for help according to claim 1, it is characterized in that, described electric-motor drive unit comprises the first motor-drive circuit and the second motor-drive circuit;
Described first motor-drive circuit comprises the first stepping motor control chip U2, the first stepper motor driver chip U3, resistance R31 ~ R34, electric capacity C31; Described second motor-drive circuit comprises the second stepping motor control chip U4, the second stepper motor driver chip U5, resistance R35 ~ R38, electric capacity C32; Described Hall element is connected with described microprocessor U1; Described first stepper motor driver chip U3 is connected with described microprocessor U1 by described first stepping motor control chip U2, and described second stepper motor driver chip U5 is connected with described microprocessor U1 by the second stepping motor control chip U4.
6. a kind of old electric health-care chair with function of saving oneself and cry for help according to claim 1, is characterized in that, described microprocessor U1 is connected with electric capacity C71 ~ C77, resistance R71 ~ R74, crystal oscillator Y1.
7. a kind of old electric health-care chair with function of saving oneself and cry for help according to claim 1, it is characterized in that, described power circuit comprises power supply chip U6, resistance R91, electric capacity C91 ~ electric capacity C95, diode 91, light-emitting diode D92 and inductance L 91; The VIN terminal of described power supply chip U6 connects the+24V DC power output end of storage battery, the GND terminal ground of described power supply chip U6, one end of described electric capacity C91 ~ electric capacity C93 connects the VIN terminal of power supply chip U6, the other end ground connection of described electric capacity C91 ~ electric capacity C93; The negative pole of described diode D91 connects the OUTPUT terminal of power supply chip U6, the positive ground of diode D91; One end of described inductance L 91 connects the OUTPUT terminal of power supply chip U6, and the other end of inductance L 91 connects the FEEDBACK terminal of power supply chip U6, and the FEEDBACK terminal of described power supply chip U6 is VDD5V mouth; One end of described electric capacity C94 ~ electric capacity C95 connects the FEEDBACK terminal of power supply chip U6, other end ground connection; One end of described resistance R91 connects the FEEDBACK terminal of power supply chip U6, and the other end is by described light-emitting diode D92 ground connection.
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| CN104908867A (en) * | 2015-06-15 | 2015-09-16 | 安徽腾越办公设备科技有限公司 | Old electric health care chair having self-rescue and help seeking functions |
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| CN104908867A (en) * | 2015-06-15 | 2015-09-16 | 安徽腾越办公设备科技有限公司 | Old electric health care chair having self-rescue and help seeking functions |
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Granted publication date: 20151007 Termination date: 20190615 |