CN1211408A - multifunctional bed - Google Patents

Abstract

A multifunctional bed is composed of bed head, bed body, bed surface, bed tail, bottom frame, lifting mechanism consisting of controller, electric or hydraulic motor, speed variator, drive shaft, electromagnetic brake, drive unit, two balance weights and two lifting heads, a concave landing casing, base with hidden wheels, vertical supporting frames at both sides and concave space at center, bed surface structure consisting of bed plate and raising mechanism, foldable foot rest at front end of bed body, fixed foot rest at bed tail, bottom wheels on foot rests, and lifting mechanism and hydraulic power system on bottom frame.

Description

multifunctional bed

The invention relates to a multifunctional bed capable of dynamic operation.

General leisure beds are mostly electric beds whose back and feet can be adjusted upwards. The mattress is equipped with a vibrator, which can adjust the angle by remote control.

The purpose of the present invention is to provide a multifunctional bed that can not only operate in a segment-controlled mode of regular operation, but also in a random mode of irregular operation.

The multifunctional bed of the present invention comprises: head of a bed, bed body, bed surface, foot of a bed, underframe, and it is characterized in that there is a lifting mechanism inside the head of a bed, including a controller, an electric or hydraulic motor, a speed changer, a drive shaft, a Electromagnetic brake, transmission device, two counterweights, two lifting heads; the outside of the head of the bed is a concave floor shell, with a base for dark wheels, vertical supports on both sides, and a concave space in the center; the bed surface structure includes a bed board and a raised bed. Mechanism; the front end of the bed has a foldable tripod; the end of the bed is a fixed tripod, and each tripod is equipped with bottom wheels; there is a jacking mechanism and a hydraulic power system on the bottom frame. Among them, the controller of the lifting mechanism controls the operating parameters of the motor in the bed body, and after performing the group allocation of its speed, displacement, and reversing pause time, it automatically performs a random and irregular operation mode according to the group, or the segment control adjustment is constant speed, The regular operation mode of positioning and timing, or the jogging and stop positioning of manual operation, use the transmission mechanism, such as the transmission shaft after the motor runs through the speed change, to rotate the chain groups on both sides, drive the chain devices in the brackets on both sides, and lock the front of the chain Lifting head that slides up and down along linear guides.

The bed surface is divided into a movable back bed board, a fixed buttock bed board, a movable leg bed board and a movable foot bed board. The end of the bed is a fixed tripod, and each tripod is equipped with pulleys. The bed frame can be straight or curved downward with a small arc, and the pulley groove at the rear section is directly embedded in the upper edge of the top wheel of the jacking arm at the rear end of the bed. The hydraulic cylinder or motor drives the telescopic rod to push and pull the lifting angle of the jacking arm to adjust the height of the end of the bed. The front end of the main beam of the underframe is connected and locked with the bed base to form an L-shaped combination. The rear end of the main beam is also provided with a dark wheel.

Compared with the prior art, the present invention has the advantages of simple operation, manual control, segment control or random control according to remote control instructions, and can provide inclined beds with large elevation angles or bend the bed in a small arc and wake up the shaker at regular intervals. , and the bed body can be controlled to rise and fall with the music, or use the sound controller to record the sound of the waves, and operate according to the pulsation of the random control group, creating an on-the-spot sound effect of floating on the sea. In addition, if railings are added, the drip stand can also be used as a hospital bed.

The present invention is described in detail below in conjunction with accompanying drawing:

Fig. 1 is the three-dimensional combination schematic diagram of top wheel type multifunctional bed of the present invention;

Fig. 2 is a schematic side view of the top wheel type multifunctional bed of the present invention;

Fig. 3 is the three-dimensional combination schematic diagram of the bottom wheel type multifunctional bed of the present invention;

Fig. 4 is a schematic side view of the bottom wheel type multifunctional bed of the present invention;

Fig. 5 is a schematic diagram of a top view and a tilt-up mechanism of the multifunctional bed surface of the present invention;

Fig. 6 is a schematic diagram of the internal configuration of the main body of the multifunctional bed of the present invention;

Fig. 7 is a schematic side view of the linear guide rail transmission mechanism of the multifunctional bed of the present invention;

Fig. 8 is a schematic side view of the linear guide rod transmission mechanism of the multifunctional bed of the present invention;

Fig. 9 is a schematic side view of the multifunctional bed ball screw transmission mechanism of the present invention;

Fig. 10 is a schematic block diagram of the hydraulic power system of the multifunctional bed of the present invention;

Fig. 11 is a control block diagram of the multifunctional bed of the present invention;

Fig. 12 is the basic control circuit diagram of the multifunctional bed of the present invention;

Fig. 13 is a schematic waveform diagram of the control mechanism of the multifunctional bed of the present invention;

Fig. 14 is a schematic diagram of displacement of the up and down movement of the multifunctional bed of the present invention.

As shown in Figures 1 to 4, a main body 101 is a concave floor case 165, including a main body base 105 with hidden pulleys at the bottom, a center of gravity bottom plate 169 connected to it, upright brackets 107 on both sides, and a concave space 109 in the middle. And lower stratification device illuminator 111, stereo 113, shelving 115, ancillary accessories such as safe box 117, leave upper and lower support elongated opening 121 in the middle of both sides support 107 fronts, when moving as lifting head 143 upper and lower supports Outer rail clearance.

Two kinds of multifunctional beds selectively connected to the main body 101 lifting head 143:

As shown in Figure 1 and Figure 2, it is a top wheel type multifunctional bed, and the bed surface is divided into four sections: a movable back bed board 21, a fixed buttock bed board 23, a movable leg bed board 25, and a movable foot board The bed board 27, the front ends of the chassis main beam 7 on both sides are firmly locked with the main body base 105, forming an L-shaped combination, and the rear end of the chassis main beam 7 is provided with a jacking mechanism 9 that can adjust the elevation angle. The hydraulic cylinder or the motor drives the telescopic rod 11 that can be rotated at both ends to push or pull the cross-connection shaft 61 joint of the jacking arm 13 on both sides of the jacking mechanism 9 to drive the bed frame 19 that is positioned at the top wheel shaft 15 above the jacking arm 13 to use a pulley Groove is embedded in the sliding mode of the top wheels 17 on both sides, and the height of the end of the bed is adjusted by jacking up or sliding down along the bed. The bottom of the jacking mechanism 9 is additionally provided with a dark wheel 31 to facilitate the movement of the bed.

As shown in Fig. 3 and Fig. 4, it is a bottom wheel type bed body, the bed surface structure is the same as the top wheel type, and each bed surface is integrated with a bed frame 19 designed with a straight or small arc angle, and a known bed surface is used. The raising mechanism 29 can make the back bed board 21 upwards to adjust the elevation angle, and the leg bed board 25 and the foot bed board 27 that are connected together are arched or put flat in the middle, and a foldable movable tripod 69 is established at the front end of the bed body in addition. The end is then provided with fixed tripod 71, railing 75, and each tripod is equipped with bottom wheel 73, and when movable tripod 69 folds and receives standby, the bed body can slide forward and backward with lifting head 143 up and down displacement.

Fig. 5 A and Fig. 5 B are the plan view of the present invention multi-function bed top and the schematic diagram of raising mechanism, the raising mechanism 29 of bed surface comprises: raising motor 51, drive speed reducer 67 to rotate the rotating shaft 55 that front end has a screw sleeve 53, force The displacement screw rod 57 in the screw sleeve 53 pushes and pulls the connecting rod 59, affects the transverse joint shaft 61, and then drives the left and right lifting arms 65 welded on the transverse joint shaft 61 and provided with rotary wheels 63 at the ends to push up or lower the bed face, adjust the elevation angle up and down.

The jacking mechanism 9 of the underframe is a hydraulic cylinder or an electric motor that drives the telescopic rod 11 to pull up or push down the horizontal joint shaft 61 of the jacking arm 13 , and its action principle is similar to that of the jacking mechanism 29 .

The optional transmission mechanism inside the main body 101 is now described as follows:

As shown in Figure 6, the lifting mechanism 127 inside the main body 101 mainly includes a controller 129, an electric or hydraulically driven motor 131, a transmission 133, a transmission shaft 135, an electromagnetic brake 137 and a chain group 139 combined on both sides, which are connected to the chain The counterweight 141 of rear end and the lifting head 143 of chain front end.

As shown in Figure 7, the motor 131 runs through the transmission shaft 135 after the speed change of the transmission 133, rotates the chain sets 139 on both sides, drives the guide rail sleeve 151 that moves up and down along the inner linear guide rails 149 of the brackets 107 on both sides, and the counterweight 141 is matched. At the rear end of the chain set 139, it balances the load locked on the lifting head 143 at the front end of the guide rail sleeve 151.

As shown in FIG. 8 , the two chain sets 139 drive the guide rod sleeves 155 that slide up and down along the linear guide rods 153 inside the brackets 107 on both sides, and the counterweight 141 is coupled to the rear ends of the chain sets 139 .

As shown in Fig. 9, the transmission 133 drives the worm gear sets 157 on both sides to rotate the vertical ball screws 159 inside the brackets 107 on both sides, and the rear end of the moving ball screw sleeve 161 is connected to a set of linear guide rod sets 163, which can be stopped without electromagnetic brakes 137. Positioning, wherein chain group 139 can replace with toothed belt group, belt group etc.

Fig. 10 is a schematic block diagram of the hydraulic power system of the multifunctional bed of the present invention, wherein, in addition to the motor 131 of the main body 101, the motor 131 of the main body 101 can also be used through an oil tank, a filter device, etc. 201, a hydraulic pump 203, a check valve 205, and a hydraulic adjustment valve 207. The electromagnetic signal 229 input by the main controller, the electromagnetic control full circuit multi-seat oil valve 209, the electromagnetic control adjustable speed flow valve 211, the hydraulic motor electromagnetic control directional switching valve 213, the jacking mechanism electromagnetic control directional switching valve 215, the back The hydraulic power system 167 composed of electromagnetically controlled directional switching valve 217 for the lifting mechanism, electromagnetically controlled directional switching valve 219 for the lifting mechanism of the feet, oil return 231 for each branch, oil return 233 for the whole circuit, etc., drives the hydraulic cylinder 223 of the jacking mechanism, and the back Look up mechanism hydraulic cylinder 225, foot lift mechanism hydraulic cylinder 227 or hydraulic motor 131 etc.

As shown in Figure 11, it is a control block diagram of the multifunctional bed controller 129 of the present invention, including:

a: Function switching setting switch b: Display

c: remote control d: transmitter

e: Receiver

f: Main controller: including power supply unit, central processing unit (CPU), read-only memory (built-in

      Operating program), random access memory, receiver input interface, audio output

Input interface, displacement monitor input interface, sound controller output interface, motor

     Driver output interface and connection bus (BUS), etc.

g: Audio h: Sound controller

i: hydraulic motor drive j: electric motor drive

K: hydraulic motor L: electric motor

M: displacement monitor n: output signal [0]

o: The control mechanism of the input signal [I] is described as follows:

When using remote control, the functions of programmable logic controller (PLC) or microcomputer controller for storage, calculation, sequence setting, timing, and random (RANDOM) cooperate with I/O components to drive the motor driver and control the motor speed (v ), displacement (d), the parameters of reversing pause time (t), adjust its change combination, group setting, and programming application to reach the requirements of multifunctional bed control of the present invention, but in order to ensure the safety and reliability of the control system Performance and service life have the following design criteria: That is to say, the durable standard and the scope of use of the equipment are determined. The addition of the two items is equivalent to the limiting constant (c), and then considering the running time and frequency (f), if the speed of the motor (v) is faster, the displacement (d) or replacement To pause time (t) must be extended.

As shown in Figure 12, it is the basic control circuit diagram of the multifunctional bed of the present invention, including: (1) switch description:

S1: Power switch

S2: Simultaneous action during operation a: manual/automatic selection switch, b: manual/unlimited middle position switch

S3, S4, S5: Uplink limit switch

S6: Set manual downlink

S7: Simultaneous action during operation a: Upstroke selection switch, b: Downstroke selection switch, c: Displacement limit speed selection switch

S8:S9,S10: Down travel limit switch

S11: Set manual uplink

S12: Inching switch

S14: Speed selection switch

S15, S16: upper and lower limit switches

S17: Intermediate displacement switch

U: up switch button

D: down switch button

L: Motor reversing button

TD: Motor commutation pause time button

TDA: time switch

L1: L excitation self-protection switch

ML: motor coil (2) operation instructions:

a: Manual part: switch S2 to M, press S6 to select down, or press S11 to select up, switch S14 to the set speed, press S12 to move inching until it touches S5 or S10 to change direction and move back.

b: Automatic part: switch S2 to A, the bed will automatically stop at the middle position, switch S7 to set the stroke, switch S14 to set the speed, switch to TD to set the pause time, adjust TDA to set the running time, and start automatic operation. When the running time is up, it will automatically stop at the middle position.

The design of the controller, considering the manufacturing cost, can choose simple, precise or practical three control methods:

(1) Simple control: In the displacement stroke of the support, in addition to fixing the upper and lower limit switches of the device, and installing the number pairs of fixed induction switches selected by the segment control and the known three-speed control mode, it has manual or regular operation. Function.

(2) Precise control method:

a: There are upper and lower limit switches and induction switches for the zero position (in the flat bed state) on the stroke of the internal displacement of the brackets 107 on both sides of the main body.

b: Manual control: adjust the required speed, press the button in the right direction to go, release it to stop, touch the upper and lower limit switches and need to recover before starting again.

c: Paragraph control: at the zero position (flat bed state), manually drive the lifting head 143 to move up or down to the required position, press down the initial storage point M1, and then move up or down to the required distance, Depress the end storage point (M2), the counting element of the displacement monitor will convert the motor 131 conversion signal input control memory to store the displacement (d), and adjust the required speed (v) and reversing pause time (t), and then Set the running time and press the start button, then the lifting head 143 will move up and down regularly (M1← →M2) until the timer is released.

d: Random control: based on the above-mentioned point storage (M1→M2) of manual control, different storage points are expanded to set up a cycle storage group G=(M1→M2→M3→M4....M _n ), among which, after walking After one cycle, the lifting rod will automatically return to the zero position. If different cycle storage groups (G1, G2, G3, G4,....G _n ) are expanded, the user can choose any group to perform repeated cycle operation. Or press the random button to randomly select different groups, and perform non-regular jumping operation such as (G1→G5→G3→G1→G6→....) until the timing is released and return to the flat bed position.

(3) Practical control methods:

a: Fix the upper and lower limit switches in the bracket displacement, and then install a pair of upper and lower induction switches that can be electrically adjusted (a small motor is set at the zero return position of the flat bed state, and this point is the center to drive the induction switch. The rack at the end of the switch moves symmetrically up and down along a pole), the switch is used to sense the different magnetic codes of each point on the pole to calibrate the lifting position during transfer, and also accepts the lifting head 143 The shift lever is proximity-sensing, further limiting its range of movement.

b: Manual control: Set the required speed, press the button in the right direction to go, release it to stop, and stop when it touches the limit switch.

c: Step control: adjust the induction switch to the required displacement (M1→M2), then adjust the required speed, set the running time, press the start button, then the lifting head 143 will be within the required displacement, according to the required speed , move up and down regularly (M1←→M2) until the timer is released and return to the flat bed state.

d: Random control: the programmable logic controller (PLC) inputs the motor speed (v), the number of rotation seconds (d), and the reversing pause time (t) programmed by the experiment. After group deployment, set its action sequence. Such as G=(M1→M2→M3→M4→M5→M6), and expand the number of groups, G1=(M1-M6), G2=(M7-M11)....G18, and then distinguish according to the length of the mobile specification It is high-speed group (G14, G15, G16, G17, G18), low-speed group (G9, G10....G18), slow-speed group (G1, G2, G3,....G18), if different ranges are set You should select a suitable group to run. Otherwise, failure to start means that you have selected the wrong group (such as a short-distance high-speed group), and each group can automatically return to the zero position after completing a cycle. Therefore, when the moving range is pulled to the maximum, the pressure Press the button to select a single group, regular cycle operation of individual speed groups, or irregular random operation of individual speed groups mixed with speed groups, etc., until the timer is released.

FIG. 13 is a schematic diagram of the transition shape of the multifunctional bed controller 129 of the present invention. 13A is a schematic diagram of a stage control waveform; FIG. 13B is a schematic diagram of a random control waveform.

In the above-mentioned controller, I/O components can have multiple options, and the combination of circuits can also have multiple types. The above-mentioned main body 101 lifting head 143 is used in the control mode of moving up and down to cooperate with the bed lifting mechanism 9 and the lifting mechanism 9. The simple operation of mechanism 29 can produce multiple effects:

The multifunctional bed of the present invention is an electric bed structure, which can be used in general households or special industries (such as hotels, leisure centers, etc.) Or complex elastic design, including automatic control, electric machinery, furniture, medical equipment and other appliances.

Claims (16)

1. A multifunctional bed, comprising: a headboard, a bed body, a bed surface, a bed end, and an underframe, and is characterized in that: - There is a lifting mechanism inside the head of the bed, including a controller, an electric or hydraulic motor, a transmission, a transmission shaft, an electromagnetic brake, a transmission device, two counterweights, and two lifting heads; - The outside of the head of the bed is a concave floor shell with a base of dark wheels, vertical supports on both sides, and a concave space in the center; -The structure of the bed surface includes the bed board and the lifting mechanism; - There is a foldable tripod at the front end of the bed; - The end of the bed is a fixed tripod, and each tripod is equipped with bottom wheels; - There is a lifting mechanism and hydraulic power system on the chassis. 2. The multifunctional bed according to claim 1, characterized in that there are elongated openings in the middle of the upright support for the upper and lower supports, which serve as the outer rail gap when the lifting head moves up and down. 3. The multifunctional bed according to claim 2, characterized in that linear guide rails are arranged inside the upright support. 4. The multifunctional bed according to claim 2, characterized in that a linear guide rod is arranged inside the upright support. 5. The multifunctional bed according to claim 2, characterized in that a ball screw is arranged inside the upright support. 6. The multifunctional bed according to claim 1, characterized in that said transmission device is a chain group device. 7. The multifunctional bed according to claim 1, characterized in that the transmission device is a toothed belt device. 8. The multifunctional bed according to claim 1, characterized in that said transmission device is a belt set device. 9. The multifunctional bed according to claim 1, characterized in that the rear end of the main beam of the bed frame is provided with a pulley groove. 10. The multifunctional bed according to claim 1, characterized in that there are dark wheels at the rear end of the main beam of the bed chassis. 11. The multi-kinetic energy bed according to claim 1, characterized in that the front end of the main beam of the underframe of the bed body and the base of the head of the bed are locked in an L-shaped combination. 12. The multifunctional bed according to claim 1, wherein the bed boards include a back board, a buttock board, a leg board and a foot board. 13. The multifunctional bed according to claim 1, wherein the bed surface raising mechanism comprises: a raising motor, a reduction box, a rotating shaft, a transverse connecting shaft, and left and right raising arms. 14. The multifunctional bed according to claim 13, characterized in that there is a screw sleeve at the front end of the rotating shaft. 15. The multifunctional bed according to claim 1, characterized in that the controller includes a function switching switch, a display, a remote controller, a transmitter, a receiver, a main controller, an audio system, a sound controller, a hydraulic motor driver, an electric Motor drives, hydraulic motors, electric motors, displacement monitors, output signals, input signals. 16. The multifunctional bed according to claim 1, characterized in that the hydraulic power system includes: the motor of the main body, a hydraulic pump, a check valve, a hydraulic adjustment valve, an electromagnetic signal, an electromagnetic control full circuit seated oil valve, an electromagnetic Control adjustable speed flow valve, hydraulic motor electromagnetically control decelerated directional switching valve, jacking mechanism electromagnetically control directional switching valve, back lifting mechanism electromagnetically control directional switching valve, foot lifting mechanism electromagnetically control directional switching valve, each point The oil is returned to the circuit, and the oil is returned to the whole circuit.

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