CN103505330A - Pressure feedback type automatic turning-over bed - Google Patents
Pressure feedback type automatic turning-over bed Download PDFInfo
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Abstract
A pressure feedback type automatic turning-over bed comprises a bed body, a transmission mechanism and a pressure sensing automatic control system, the bed body is composed of a bottom bed board, a middle bed board, an upper movable bed board, a bed head baffle, a bed tail baffle, a left baffle and a right baffle, the transmission mechanism is composed of a hydraulic transmission system and a four-connection-rod mechanism, an oil box is arranged on the bottom bed board, and the pressure sensing automatic control system is composed of a pressure sensor, a decoder and an automatic control circuit and used for controlling the hydraulic transmission system to work. The pressure feedback type automatic turning-over bed achieves multi-dimension, multi-angle and adjustable folding and turning over, collects position parameters, weight parameters and other parameters of a patient, achieves parameter identification, and automatically sets moving parameters.
Description
Technical field
The present invention relates to medical health apparatus technical field, particularly a kind of pressure-feedback-type is automatic turnover bed.
Background technology
China's aged number is increasing, for improve patient self-care ability, alleviate nursing staff's working strength, the market demand of nursing bed day by day strengthens and is urgent.
People with disability and disease that paralytic takes a disease often can require long-term bed, and under action of gravity, patient's back and buttocks be pressurized for a long time like this, produce decubital ulcer.Traditional solution is to need nurse or household often for patient stands up, but wastes time and energy, poor effect.Along with expanding economy, the problem of an aging population is also on the rise in addition.There is family not living home in some cities, old people especially elderly patients can not get looking after for a long time.Because disease that old people takes a disease is main mainly with chronic disease, need carry out for a long time physics mode nursing.Therefore be equipped with necessary care appliances, especially a kind ofly can for the nursing bed of turn-over bed for patient, just seem very important.
Through retrieval to current existing technical literature, we can medical care bedly classify as follows by existing:
Frame for movement, the current domestic medical care bed three major types that is divided into: the first kind is the semireclining sitting (the bent lower limb type of supporting back) of getting up, multifunction nursing bed (the number of patent application: 02289820) that for example Xu Feng outstanding person invents, main purpose is to realize patient to sit up above the waist, reach health comfortable position, with convenient eating, take medicine.This nursing bed is now widely used at Various Hospitals, but fails to solve this medical care difficult problem of decubital ulcer.Equations of The Second Kind is rollover Stryker frame, and main purpose is solution decubital ulcer problem, as the automatic turnover bed (number of patent application: 02114415) etc. of being invented by Zou Xianchun.But due to the limitation of mechanism design, the angle of standing up of this class bed generally only has 30 °-50 °, reach far away 90 ° of the most comfortable states that Human Physiology stands up, patient's back is still pressed on bedding, the generation of solution decubital ulcer not yet in effect.The 3rd class is multifunctional overturn bed, can realize various deformation, completes the action requests such as supporting back, bent lower limb, rollover, as the mechanical nurse (patent No. 200920163785) of Feng Meishan invention etc.But this class Stryker frame is mostly external import, expensive, and complex structure, and mechanism kinematic space is restricted, most of product rollover angle is undesirable.
In addition, type of drive, within domestic medical care bed minute, can be divided into manual control and electronic control two classes, wherein electronic control is due to its easy labour-saving mode of operation, and steadily reliable course of action, welcomes and be subject to market.
Although the nursing bed existing on domestic market can be realized and standing up, but its common shortcoming is to adopt Artificial Control, yet for the patient that cannot take action, therefore may be difficult to accomplish that hand control nursing bed carries out work, develop a kind of nursing bed that can self-timing operation and just seem particularly important.
From hospital and patient's angle analysis, use the common medical bedstead really can cost saving, alleviate medical burden, but be unfavorable for patient's quick recovery, this problem can not be ignored.The intelligent recovering physiotherapy aid system of our exploitation can make up the deficiency of this series products on market.
Intelligent recovering physiotherapy aid system has solved the weak point of above three major types medical bedstead, it can realize system multidimensional, multi-angle, regulatable folding and upset, can utilize pressure transducer to realize patient location, the isoparametric collection of weight, the system that can also realize is to parameter identification, and independently sets operating path, kinematic parameter.
Summary of the invention
The object of the invention is to overcome the deficiency of the special-purpose rehabilitation bed of existing paralytic, provide a kind of pressure-feedback-type automatic turnover bed, this is the rehabilitation bed of more comfortable more automatization, by the fractionation mode different to whole bed board, change pure mechanicalness operating structure, application hydraulic pressure four connecting rod assembly devices improve design, and sensor is automatically controlled and is applied among the collapsible bed board of each piece, thereby realize the diversification of the bed body direction of motion, the micro-vibration producing while reducing bed board upset, reduce manual operation complicated in rehabilitation course, guarantee that patient has the environment of safety and comfort in therapeutic process.
Technical solution of the present invention is as follows:
A kind of pressure-feedback-type is automatic turnover bed, it is characterized in that: comprise a body, drive mechanism and pressure sensing automatic control system:
Described bed body consists of bottom bed board, middle level bed board, upper strata mobile bed plate, head of a bed baffle plate, cabinet base baffle plate, left side baffle plate, right side baffle plate, described bottom bed board and middle level bed board are together with described head of a bed baffle plate, cabinet base baffle plate, left side baffle plate, right side baffle plate is permanently connected by four jiaos of four columns, and described upper strata mobile bed plate consists of by seven embedded hinge flap plates are interconnected left measure-alike bed board, left side bed board, left foot bed board, right bed board, right side bed board, right crus of diaphragm bed board;
Described drive mechanism is comprised of Hydraulic Power Transmission System and quadric chain, on described bottom bed board, oil plant case is set, the position on described middle level bed board and between the left side bed board of described upper strata mobile bed plate, right side bed board, left bed board and right bed board, between left foot bed board and right crus of diaphragm bed board arranges respectively left side hydraulic quadric chain, right side hydraulic quadric chain, head of a bed hydraulic pressure quadric chain and cabinet base hydraulic pressure quadric chain described upper strata mobile bed plate is supported to a mobile bed plate stably;
Described sensing and controlling system is comprised of pressure transducer, decoder and automatic control circuit, for controlling the work of described Hydraulic Power Transmission System.
Six pressure transducers that laterally distribute successively on described left side bed board and right side bed board, pressure transducer is as the signal input part of automatic control system.
Described Chuan Tidi both sides are equipped with more than two groups movable support mechanisms, lateral symmetry, and each group movable support mechanism is comprised of damping spring and axle and directive wheel, and described axle and directive wheel form universal wheel, and universal wheel contacts with ground.
Described damping spring is hard spring, air spring or liquid spring.
Described hydraulic pressure quadric chain comprises that one end has clamped hinge, the sleeved Hydraulic Main lever of other end tool, one end has clamped hinge, the driven expansion link that the other end and support bar are hinged, the free end of described support bar is through described sleeve, two described clamped hinges are fixed on described middle level bed board, and the free end of described support bar is fixing in the following manner:
The free-ended projection of the support bar of described head of a bed hydraulic pressure quadric chain be connected to actively with described left head board and the adjacent fixing draw-in groove of right head board in, the free-ended projection of the support bar of described cabinet base hydraulic pressure quadric chain be connected to actively with the described left foot of the bed and the adjacent fixing draw-in groove of the right foot of the bed in, the free end of the support bar of described left side hydraulic quadric chain and described left plate are fixedly linked, and the free end of the support bar of described right side hydraulic quadric chain and described left plate are fixedly linked.Described automatic control circuit working pressure sensor, as signal input part, moves to realize bed board System of Rotating about Fixed Axis by controlling the lifting of described Hydraulic Main lever through described decoding circuit and control circuit.
In bed one side, be provided with the touch screen-device of liquid crystal display, this touch screen-device has rotating mechanism in horizontal plane, shows the state when external crucible body, by clicking corresponding parameter, so that bed body completes the head of a bed, lift action, action is stood up in side direction left and right, and cabinet base lifts and falls action.
The cabinet base baffle plate of described bed body, left side baffle plate, right side baffle plate are connected with bed body by trip mechanism, and the part that described left plate right plate exceeds described upper strata mobile bed plate is side rail.
Technique effect of the present invention is as follows:
Bed board of the present invention, by six square planks that size is identical, adopts embedded hinge to be connected to each other formation.Under power drive, bed board can be realized: head two plates rotate up, and foot's two plates are two direction rotations up and down, and left side three plate linkages upwards rotate, and right side three plate linkages upwards rotate.
The size of bedstead is slightly larger than bed board, can make bed board embed wherein, and hydraulic stem drives four, the upset ，Si angle column of implantation body to guarantee the stability of bed body, is the main body of bearing pressure, guarantees that bed is in static, and motion structure does not stress substantially.On bed frame, there are dismountable head of a bed guardrail, bed side rail, guarantee the safety of patient when rotating with bed body.On bedstead, also with side board, wherein, cabinet base baffle plate is detachable, is convenient to a body transmission system maintenance with critically ill patient is gone to bed, facility while cleaning.
Drive mechanism of the present invention is comprised of hydraulic pressure quadric chain.First be two fixed pivots, between two fulcrums, we regard a fixing bar as it, then a hydraulic stem is hinged on the fulcrum before, fulcrum upper hinge expansion link below, hydraulic stem is driving mechanism, expansion link is follower, the different angles that need to rotate according to bed board, hydraulic stem extends different distance.Hydraulic stem and expansion link free end respectively with a support bar hinge.Form hydraulic pressure---four jointed gear units.Actuating device and the side two boards of being responsible for two sideway swivels are fixedly hinged.Four connecting rods are when realization left and right is stood up and stood up to move, and hydraulic stem will be done stretching motion; When realization helps patient to land, hydraulic stem needs to carry out compression movement.
Automatic control system of the present invention is partly comprised of sensor-based system, analytical system, circuit control system, pulse generation system, display system etc.
Sensor-based system is comprised of six pressure transducers that are distributed on middle three platelets of bed board.When human body lies on a bed, must press wherein 3 to 4 sensors.When pressurized is greater than certain numerical value on every sensor, regards as and have input signal.Analytical system is analyzed after input signal, judges the direction of rotation of bed body, through circuit control system, controls elongation or the contraction of hydraulic stem, makes actuator movement.By regulating impulse generating means, the rotary speed of scalable forms.Display system can the current rotary speed of instant playback.
Mobile damping of the present invention is comprised of damping spring and directive wheel.Wherein, damping spring one end is connected in directive wheel top, and the other end is connected with bed base plate.Every limit is installed three groups and is moved damping, totally six groups.Realize shock-absorbing performance and the travelling performance of bed body
The present invention, from the viewpoint of how realizing a stability of body upset, improving the ruggedness of device and reduce unnecessary manual operation etc., improves whole mechanical dynamic system.It is to be noted: such scheme is not independently, researcher can, according to concrete design needs, be considered these schemes synthesis.
Compared with prior art, beneficial effect of the present invention:
1. utilize hydraulic pressure four connecting rod assembly devices to realize system multidimensional, multi-angle, regulatable folding and upset.
2. utilize pressure transducer to realize patient location, the isoparametric collection of weight.
3. the system that realizes is to parameter identification, and independently sets kinematic parameter.
Realize the motion of various dimensions, effectively reduce a vibration that body lifting brings, on the basis of stability that guarantees sick bed, complicated manual operation is transformed into intelligent sensor completely and controls, make patient's rehabilitation more smooth.
Accompanying drawing explanation
The automatic turnover bed three-dimensional structure diagram of Fig. 1 pressure-feedback-type of the present invention
Fig. 2 is Fig. 1 bed body top view
Fig. 3 Fig. 1 bed body internal structure front view
Fig. 4 is a body internal structure left view
Fig. 5 hydraulic pressure-quadric chain schematic diagram
Fig. 6 head of a bed, cabinet base drive mechanism---bed board junction schematic diagram
Fig. 7 bed body moves damping schematic diagram
Fig. 8 pressure transducer is position distribution schematic diagram on bed board
Fig. 9 control system flow chart
Figure 10 control system circuit diagram
Figure 11 timing chart
Figure 12 decoder circuit is laid figure
In figure:
1, bed frame 2, part bed board
3, hinge 4, drive mechanism and bed board junction, right side
5, cabinet base baffle plate draw-in groove 6, cabinet base baffle plate
7, drive mechanism and cabinet base bed board junction 8, drive mechanism and bed board junction, left side
9, drive mechanism and head of a bed bed board junction 10, bed body drive mechanism space
11, head of a bed baffle plate 12,Chuan side guardrail
13, head of a bed hydraulic pressure-quadric chain draw-in groove 14, head of a bed hydraulic pressure-quadric chain
15, bed board 16, cabinet base hydraulic pressure-quadric chain
17, damping spring 18, wheel shaft
19,Chuan Ti move at rear portion-damping 20,Chuan Ti rear portion hydraulic fluid tank
21, side hydraulic-quadric chain 22, anterior hydraulic pressure-tetra-jointed gear unit of bed body
23, bed body bottom plate 24, the anterior movement-damping of bed body
25, side rail 26, bed body hydraulic fluid tank and track laying space before bed body
27, rubber wheel 28, support bar
29, sleeve 30, pin joint
31, driven expansion link 32, expansion link and two layers of clamped hinge of bed board
33, hydraulic stem 34, hydraulic stem and two layers of clamped hinge of bed board
35, part left side bed board 36, part right side bed board
37, hydraulic pressure-quadric chain draw-in groove 38, liquid crystal touch control screen
39, circuit box
The specific embodiment
Below in conjunction with drawings and Examples, the present invention is elaborated: this implements take technical solution of the present invention under prerequisite, provided concrete implementation method, but protection scope of the present invention is not limited to following embodiment.
Below in conjunction with accompanying drawing, technical solution of the present invention is described further.
First referring to Fig. 1, Fig. 2, Fig. 3 and Fig. 4, is most preferred embodiment structural representation of the present invention, and as seen from the figure, the automatic turnover bed most preferred embodiment of pressure-feedback-type of the present invention, comprises a body, drive mechanism, pressure sensing automatic control system and movable support mechanism:
Described bed body consists of bottom bed board 23, middle level bed board, upper strata mobile bed plate, head of a bed baffle plate 11, cabinet base baffle plate 6, left side baffle plate, right side baffle plate, described bottom bed board 23He middle level bed board is together with described four jiaos of four columns of head of a bed baffle plate 11, cabinet base baffle plate 6, left side baffle plate, right side baffle plate are permanently connected, and described upper strata mobile bed plate consists of by seven embedded hinge flap plates are interconnected left measure-alike bed board, left side bed board, left foot bed board, right bed board, right side bed board, right crus of diaphragm bed board;
Described drive mechanism is comprised of Hydraulic Power Transmission System and quadric chain, oil plant case 22,20 is set on described bottom bed board 23, and the position on described middle level bed board and between the left side bed board of described upper strata mobile bed plate, right side bed board, left bed board and right bed board, between left foot bed board and right crus of diaphragm bed board arranges respectively left side hydraulic quadric chain, right side hydraulic quadric chain, head of a bed hydraulic pressure quadric chain and cabinet base hydraulic pressure quadric chain described upper strata mobile bed plate is supported to a mobile bed plate stably;
Described sensing and controlling system is comprised of pressure transducer, decoder and automatic control circuit, for controlling the work of described Hydraulic Power Transmission System.
Six pressure transducers that laterally distribute successively on described left side bed board and right side bed board, pressure transducer is as the signal input part of automatic control system.
Described Chuan Tidi both sides are equipped with more than two groups movable support mechanisms, lateral symmetry, and each group movable support mechanism is comprised of damping spring 17 and axle 18 and directive wheel 27, and described axle 18 and directive wheel 27 form universal wheel, and universal wheel contacts with ground.
Described damping spring 17 is hard spring.
Described hydraulic pressure quadric chain comprises that one end has clamped hinge 32, the other end has the Hydraulic Main lever 33 of sleeve 29, one end has clamped hinge 34, the driven expansion link 31 that the other end and support bar 28 are hinged, the free end of described support bar 28 is through described sleeve 29, two described clamped hinges 32,34 are fixed on described middle level bed board, and the free end of described support bar 28 is fixing in the following manner:
The free-ended projection of the support bar 28 of described head of a bed hydraulic pressure quadric chain be connected to actively with described left head board and the adjacent fixing draw-in groove 37 of right head board in, the free-ended projection of the support bar 28 of described cabinet base hydraulic pressure quadric chain be connected to actively with the described left foot of the bed and the adjacent fixing draw-in groove 37 of the right foot of the bed in, the free end of the support bar 28 of described left side hydraulic quadric chain and described left plate are fixedly linked, the free end of the support bar 28 of described right side hydraulic quadric chain and described left plate are fixedly linked.
Described automatic control circuit working pressure sensor, as signal input part, moves to realize bed board System of Rotating about Fixed Axis by controlling the lifting of described Hydraulic Main lever 33 through described decoding circuit and control circuit.
In bed one side, be provided with the touch screen-device of liquid crystal display, have rotating mechanism in horizontal plane, this touch screen-device shows the state when external crucible body, by clicking corresponding parameter, so that bed body completes the head of a bed, lift action, action is stood up in side direction left and right, and cabinet base lifts and falls action.
The cabinet base baffle plate 6 of described bed body, left side baffle plate, right side baffle plate are connected with bed body by trip mechanism, and the part that described left plate right plate exceeds described upper strata mobile bed plate is side rail.
In the present embodiment:
Described upper strata mobile bed plate top view as shown in Figure 2, bed board is whole wide 1.4 meters, long 2.1 meters, by six square planks that size is identical, adopts embedded hinge to be connected to each other formation.Under power drive, bed board can be realized: head two plates rotate up 45°， foot two plates and are rotated down 45 °, or upwards rotates 20 °, and left side three plate linkages upwards rotate 45°， right side three plate linkages and upwards rotate 45 °
Actuating device as shown in Figure 5, described hydraulic pressure four jointed gear units.Two clamped hinges 32,34 are connected with middle level bed board respectively, as shown in Fig. 3 midship section front view and Fig. 4 midship section left view.32,34 segment distances of being separated by of two clamped hinges, are equivalent to a bar in quadric chain.Hydraulic Main lever 33 use sleeves 29 are connected with support bar 28.Driven expansion link 31.Because the head of a bed is different with the initial position of cabinet base actuating device from the actuating device of side, for ease of Control System Design, therefore in Fig. 4 26 spatial arrangement the first oil plant case 22 and the second oil plant casees 20.The hydraulic stem that is arranged in 4,8,9 locational drive mechanisms in Fig. 2 is connected with Fig. 3 the first oil plant case 22, and the hydraulic stem that is arranged in 7 locational drive mechanisms in Fig. 2 is connected with Fig. 3 the second oil plant case 20.
Two groups of drive mechanisms controlling the rotation of bed board side direction are fixedly connected with two bed boards in centre position respectively, and fixed position is as shown in Fig. 24,8.When bed board lifts, as Fig. 5, Hydraulic Main lever 33 is slowly extended, and makes 30 rotations around hinged place of 28 support bars.Because free end is fixed on bed board, when bed board rises, can cause on driven expansion link 31 and produce displacement difference.At this moment, driven expansion link 31 extends, and makes up displacement difference, makes bed board do steady circular motion around axle, thereby realizes the conversion from Linear transmission to circular motion.
In order to realize the bed board head of a bed, lift, berth falls and the reasonable conversion of lateral movement, therefore the free end of four groups of drive mechanisms can not all be fixedly connected with the bed board of relevant position shown in Fig. 24,7,8,9, otherwise when bed board side direction rises, because 7,9 Liang Ge positions are connected with rod member, can cause motion conflict.So the present invention controls head of a bed bed board rises the drive mechanism fall with cabinet base bed board and is connected with bed board by the connecting device cross-section front view shown in Fig. 6 respectively.As shown in Figure 6, when a bed board in the side bed board of side bed board 35, side bed board 36 representatives is done flip-flop movement, be made as side bed board 36, because side bed board 36 lifts, the draw-in groove 37 being fixed thereon is moved along with the motion of side bed board 36 plates, and now support bar 28 can not stop the motion of side bed board 36.When head board lifts or when the foot of the bed falls, as shown in Figure 6, the draw-in groove 37 on both sides can be coated on the link of actuating device wherein, be equivalent to fix onboard, and when realizing the head of a bed and lifting the motion falling with cabinet base, in Fig. 2, the bed board of 4,8 positions, position does not participate in motion, therefore can not form motion conflict.When the head of a bed lifts, as Fig. 5,33 hydraulic stems slowly extend, and make 30 rotations around junction of 28 support bars.Because free end is fixed on bed board, when bed board rises, can cause on bar 31 and produce displacement difference.At this moment, driven expansion link 31 extends, and makes up displacement difference, makes bed board do steady circular motion around axle.When cabinet base falls, as Fig. 5,33 Hydraulic Main levers slowly shorten, and make 30 rotations around junction of 28 support bars.Because free end is fixed on bed board, when bed board rises, can cause on driven expansion link 31 and produce displacement difference.At this moment, driven expansion link 31 shortens, and makes up displacement difference, makes bed board do steady circular motion around axle.
Described travel mechanism:
As shown in Figure 1, lateral symmetry, respectively has three groups to the position distribution of the one-sided mobile damping of bed body.Each group is mobile as shown in Figure 7---damping by 17 damping springs and axle 18, take turns 27 directive wheel two parts that form and form.When bed board lifts, because hydraulic stem 33 unavoidably causes vibrations at the volley, may make the patient on bed feel a little vibratory sense, thereby cause uncomfortablely, add damping spring can effectively play damping effect.18, the 27 common universal wheels that form can facilitate heavy bed body to move, and facilitate the hygiene work of hospital and patient's rescue work.
Automatic control system
As shown in Figure 8, wherein major part forms by following 4 the flow chart of automatic control system of the present invention, that is: sensor input, decoder, controller, three ingredients of action device.
Sensor Chuan Tishang position as shown in Figure 9, because people's main weight concentrates on abdominal part, buttocks and shank.Therefore, by six sensors as shown in Figure 9, be arranged on middle two bed boards.Sensor is 0.2 meter apart from bed board edge outermost distance, and inner sensors is 0.15 meter apart from bed board inside edge distance.Pressure transducer is the square sheets of approximately 0.075 meter of size, and its thickness is compared negligible with integral body.On each side bed board between three sensors between two at a distance of approximately 0.6 meter.Through test, when sensor is so placed, can cover human body all possible positions in bed.It is 70N that the minimum of sensor is identified stressed.
Decoder circuit: the method that the present invention adopts chip to combine with gate, sensor signal is converted into binary signal of telecommunication, what chip was used is 74138 chips, and gate connects according to concrete state equation selectivity, and concrete methods of realizing is as follows:
Need to realize 6 sensors that distributing as shown in Figure 9 on two bed boards of automatic control, corresponding 6 input ports, are made as A, B, C, D, E, F.Tri-sensors of DEF are positioned at the bed board on the left side, and tri-sensors of ABC are positioned at the bed board on the right.The pressure bearing when sensor surpasses setting value, and when surpassing 70N, the value of its input is exactly " 1 ", otherwise is exactly " 0 ".We have two by final required output electrical signals, represent respectively with Si and Ci, and wherein the latter's priority is greater than the former.
For Si, " 1 " is that lift on the left side that represents bed board, and " 0 " is that the bed board that represents the right lifts; For Ci, " 1 " is to represent effective status, and " 0 " is to represent disarmed state.Consider that distribution and the people of sensor on bed board specifically lies in the width on a body, sensor-triggered number be 3 or 4 and classify effective status as, according to above analysis, list truth table of the present invention as follows:
Table 1. decoder truth table
In conjunction with 74138 chips, design, we need two such chips.The first chip block, input from a high position to low level successively: C, B, A, output port is made as
the second chip block, input from a high position to low level successively: F, E, D, output port is made as
The principle of 74 * 138 chips is exactly decoder, now take the first chip block as example, introduces the logic state table of decoder:
Table 2. decoder logic state table
| C | B | A | Y0 | Y1 | Y2 | Y3 | Y4 | | Y6 | Y7 | |
| 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | |
| 0 | 0 | 1 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 |
| 0 | 1 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 |
| 0 | 1 | 1 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 |
| 1 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 |
| 1 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 |
| 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 |
| 1 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 |
With this, draw the state equation of decoder:
Decoder circuit is laid as shown in figure 12
Output signal to decoder, itself and outfan have following concrete corresponding relation:
That is: work as decoder output, represent the Si signal end that left or right bed board lifts and represent that the signal of telecommunication of effective or invalid Ci signal end is at 1 o'clock, corresponding mechanical outfan action is for oil plant case valve opening and complete force feed action, makes hydraulic stem elongation.Six outfan Q1-Q6 represent respectively anterior oil plant case, head fuel feed tube valve, left side fuel feed tube valve, right side fuel feed tube valve, oil plant Xiang, foot of foot fuel feed tube valve.Its corresponding virtual condition conversion table is as follows:
State transition table can obtain state equation thus:
According to above-mentioned state Equation, obtain the circuit connection diagram shown in Figure 10.
Pulse signal generation device as shown in figure 11, because the JK flip-flop shown in Fig. 9 has the characteristic that signal trailing edge triggers, therefore this circuit can be controlled the rise time of establishment by the cycle length of regulating impulse signal, thereby control the maximum angle that bed board rises.
Claims (8)
1. a pressure-feedback-type is automatic turnover bed, it is characterized in that: comprise a body, drive mechanism and pressure sensing automatic control system:
Described bed body consists of bottom bed board (23), middle level bed board, upper strata mobile bed plate, head of a bed baffle plate (11), cabinet base baffle plate (6), left side baffle plate, right side baffle plate, described bottom bed board (23) and middle level bed board are together with described four jiaos of four columns of head of a bed baffle plate (11), cabinet base baffle plate (6), left side baffle plate, right side baffle plate are permanently connected, and described upper strata mobile bed plate consists of by seven embedded hinge flap plates are interconnected left measure-alike bed board, left side bed board, left foot bed board, right bed board, right side bed board, right crus of diaphragm bed board;
Described drive mechanism is comprised of Hydraulic Power Transmission System and quadric chain, oil plant case (22,20) is set on described bottom bed board (23), and the position on described middle level bed board and between the left side bed board of described upper strata mobile bed plate, right side bed board, left bed board and right bed board, between left foot bed board and right crus of diaphragm bed board arranges respectively left side hydraulic quadric chain, right side hydraulic quadric chain, head of a bed hydraulic pressure quadric chain and cabinet base hydraulic pressure quadric chain described upper strata mobile bed plate is supported to a mobile bed plate stably;
Described sensing and controlling system is comprised of pressure transducer, decoder and automatic control circuit, for controlling the work of described Hydraulic Power Transmission System.
2. automatic turnover bed by pressure-feedback-type claimed in claim 1, it is characterized in that, six pressure transducers that laterally distribute successively on described left side bed board and right side bed board, pressure transducer is as the signal input part of automatic control system.
3. automatic turnover bed by pressure-feedback-type claimed in claim 1, it is characterized in that, described Chuan Tidi both sides are equipped with more than two groups movable support mechanisms, lateral symmetry, each group movable support mechanism is comprised of damping spring (17) and axle (18) and directive wheel (27), described axle (18) and directive wheel (27) form universal wheel, and universal wheel contacts with ground.
4. automatic turnover bed by pressure-feedback-type claimed in claim 3, it is characterized in that, described damping spring (17) is hard spring, air spring or liquid spring.
5. automatic turnover bed by pressure-feedback-type claimed in claim 1, it is characterized in that, described hydraulic pressure quadric chain comprises that one end has clamped hinge (32), the other end has the Hydraulic Main lever (33) of sleeve (29), one end has clamped hinge (34), the driven expansion link (31) that the other end and support bar (28) are hinged, the free end of described support bar (28) is through described sleeve (29), described two clamped hinges (32,34) are fixed on described middle level bed board, and the free end of described support bar (28) is fixing in the following manner:
The free-ended projection of the support bar (28) of described head of a bed hydraulic pressure quadric chain be connected to actively with described left head board and the adjacent fixing draw-in groove of right head board (37) in, the free-ended projection of the support bar (28) of described cabinet base hydraulic pressure quadric chain be connected to actively with the described left foot of the bed and the adjacent fixing draw-in groove of the right foot of the bed (37) in, the free end of the support bar (28) of described left side hydraulic quadric chain and described left plate are fixedly linked, the free end of the support bar (28) of described right side hydraulic quadric chain and described left plate are fixedly linked.
6. automatic turnover bed by pressure-feedback-type claimed in claim 1, it is characterized in that, described automatic control circuit working pressure sensor, as signal input part, moves to realize bed board System of Rotating about Fixed Axis by controlling the lifting of described Hydraulic Main lever (33) through described decoding circuit and control circuit.
7. automatic turnover bed according to pressure-feedback-type claimed in claim 1, it is characterized in that, in bed one side, be provided with the touch screen-device of liquid crystal display, there is rotating mechanism in horizontal plane, this touch screen-device shows the state when external crucible body, by clicking corresponding parameter, so that bed body completes the head of a bed, lifts action, action is stood up in side direction left and right, and cabinet base lifts and falls action.
8. automatic turnover bed by pressure-feedback-type claimed in claim 1, it is characterized in that, the cabinet base baffle plate (6) of described bed body, left side baffle plate, right side baffle plate are connected with bed body by trip mechanism, and the part that described left plate right plate exceeds described upper strata mobile bed plate is side rail.
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| CN201310472964.1A CN103505330B (en) | 2013-10-11 | 2013-10-11 | Pressure-feedback-type is automatic turnover bed |
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| CN201310472964.1A CN103505330B (en) | 2013-10-11 | 2013-10-11 | Pressure-feedback-type is automatic turnover bed |
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| CN103505330A true CN103505330A (en) | 2014-01-15 |
| CN103505330B CN103505330B (en) | 2016-09-21 |
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| CN104523383A (en) * | 2014-12-25 | 2015-04-22 | 南通康盛医疗器械有限公司 | Wheel stretcher |
| CN105796263A (en) * | 2016-03-09 | 2016-07-27 | 深圳市前海颐老科技有限公司 | Automatic overturning device and method for old people |
| CN105919748A (en) * | 2016-06-22 | 2016-09-07 | 北京京东科技有限公司 | Electric turn-over bed |
| CN105919750A (en) * | 2016-06-22 | 2016-09-07 | 北京京东科技有限公司 | Electric bed |
| CN106333828A (en) * | 2016-09-28 | 2017-01-18 | 重庆钧爱博科技有限公司 | Limb exercise rehabilitation device |
| CN107049657A (en) * | 2017-05-23 | 2017-08-18 | 金华市中心医院 | A kind of medical care system |
| CN107212979A (en) * | 2017-07-20 | 2017-09-29 | 王晓东 | One kind automation is monitoring bed |
| CN107456336A (en) * | 2017-08-29 | 2017-12-12 | 范师华 | A kind of hydraulic regulation bed capable of nursing and supporting patient |
| CN107692657A (en) * | 2017-09-05 | 2018-02-16 | 中山乐宜嘉家居设备有限公司 | A kind of beddo |
| CN109009742A (en) * | 2018-07-02 | 2018-12-18 | 付立国 | A kind of medical hospital bed convenient for stored collapsed |
| CN109739132A (en) * | 2016-03-15 | 2019-05-10 | 国家康复辅具研究中心 | A kind of electric foldable bath bed |
| CN109833164A (en) * | 2019-03-13 | 2019-06-04 | 上海长征医院 | A kind of intelligent automation equipment for supporting patient with burn |
| CN110464551A (en) * | 2018-04-28 | 2019-11-19 | 陈延波 | A kind of medical stretcher |
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| CN112168545A (en) * | 2018-10-12 | 2021-01-05 | 合肥工业大学 | Bed body control system and method |
| CN112618191A (en) * | 2020-12-22 | 2021-04-09 | 吉林大学 | A supplementary limbs lifts up turnover device for brain surgery nursing |
| CN113662771A (en) * | 2021-08-02 | 2021-11-19 | 江汉大学 | Bed body system for assisting in turning over and control method |
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| US5224228A (en) * | 1992-06-17 | 1993-07-06 | Larrimore James R | Longitudinally split, motor operated butterfly bed |
| US5392479A (en) * | 1994-01-28 | 1995-02-28 | Liao; Yu-Kuen | Multipurpose sickbed |
| CN200994877Y (en) * | 2006-09-05 | 2007-12-26 | 西南石油大学 | Nursing bed for paralytic patient |
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| CN201676100U (en) * | 2010-05-28 | 2010-12-22 | 朱之麟 | Multifunctional nursing bed |
| CN201692202U (en) * | 2010-06-24 | 2011-01-05 | 谢星海 | Health-care and nursing air cushion bed |
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| CN104523383A (en) * | 2014-12-25 | 2015-04-22 | 南通康盛医疗器械有限公司 | Wheel stretcher |
| CN105796263A (en) * | 2016-03-09 | 2016-07-27 | 深圳市前海颐老科技有限公司 | Automatic overturning device and method for old people |
| CN109739132A (en) * | 2016-03-15 | 2019-05-10 | 国家康复辅具研究中心 | A kind of electric foldable bath bed |
| CN105919748A (en) * | 2016-06-22 | 2016-09-07 | 北京京东科技有限公司 | Electric turn-over bed |
| CN105919750A (en) * | 2016-06-22 | 2016-09-07 | 北京京东科技有限公司 | Electric bed |
| CN106333828A (en) * | 2016-09-28 | 2017-01-18 | 重庆钧爱博科技有限公司 | Limb exercise rehabilitation device |
| CN107049657A (en) * | 2017-05-23 | 2017-08-18 | 金华市中心医院 | A kind of medical care system |
| CN107049657B (en) * | 2017-05-23 | 2023-03-03 | 金华市中心医院 | Medical care system |
| CN107212979A (en) * | 2017-07-20 | 2017-09-29 | 王晓东 | One kind automation is monitoring bed |
| CN107456336A (en) * | 2017-08-29 | 2017-12-12 | 范师华 | A kind of hydraulic regulation bed capable of nursing and supporting patient |
| CN107692657A (en) * | 2017-09-05 | 2018-02-16 | 中山乐宜嘉家居设备有限公司 | A kind of beddo |
| CN110464551A (en) * | 2018-04-28 | 2019-11-19 | 陈延波 | A kind of medical stretcher |
| CN109009742B (en) * | 2018-07-02 | 2020-03-27 | 孟伟 | Medical sick bed convenient to fold and store |
| CN109009742A (en) * | 2018-07-02 | 2018-12-18 | 付立国 | A kind of medical hospital bed convenient for stored collapsed |
| CN112043523A (en) * | 2018-10-12 | 2020-12-08 | 合肥工业大学 | Multi-posture rehabilitation device |
| CN112168545A (en) * | 2018-10-12 | 2021-01-05 | 合肥工业大学 | Bed body control system and method |
| CN112168545B (en) * | 2018-10-12 | 2021-12-21 | 合肥工业大学 | Bed body control system and method |
| CN109833164A (en) * | 2019-03-13 | 2019-06-04 | 上海长征医院 | A kind of intelligent automation equipment for supporting patient with burn |
| CN112618191A (en) * | 2020-12-22 | 2021-04-09 | 吉林大学 | A supplementary limbs lifts up turnover device for brain surgery nursing |
| CN112618191B (en) * | 2020-12-22 | 2021-09-24 | 吉林大学 | A supplementary limbs lifts up turnover device for brain surgery nursing |
| CN113662771A (en) * | 2021-08-02 | 2021-11-19 | 江汉大学 | Bed body system for assisting in turning over and control method |
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