CN113975014B

CN113975014B - Multifunctional air suspension bed

Info

Publication number: CN113975014B
Application number: CN202111199610.5A
Authority: CN
Inventors: 刘桂英; 孟杰; 乔姝; 苗佐栋; 朱运涛; 王月茂
Original assignee: Hebei Hualan Medical Equipment Co ltd
Current assignee: Hebei Hualan Medical Equipment Co ltd
Priority date: 2021-10-14
Filing date: 2021-10-14
Publication date: 2022-10-11
Anticipated expiration: 2041-10-14
Also published as: CN113975014A

Abstract

The invention relates to a multifunctional air suspension bed, which comprises a bed body, a base and a position adjusting device, wherein the position adjusting device is arranged on the base and is connected with the bed body; the position adjusting device comprises a first lifting column, a second lifting column and a third lifting column which are arranged in a triangular shape and mounted on the base, and the tops of the three lifting columns are connected with the bottom of the bed body. The bed body is supported by the three lifting columns, the height and the inclination angle of the bed body can be adjusted by adjusting the heights of two lifting columns, and one end of the bed body can be lifted upwards.

Description

Multifunctional air suspension bed

Technical Field

The invention belongs to the field of medical equipment, and particularly relates to a multifunctional air suspension bed.

Background

The floating bed is one of the most advanced medical instruments internationally for treating large-area burn patients at present and is divided into a sand particle floating bed and an air floating bed.

600 kg of fine sand synthesized by organic silicon and ceramic is filled in the sand particle suspension bed. The diameter of each sand is only 50-150 microns, and the sand is blown by airflow to form waves to support the human body to be suspended.

The air suspension bed consists of a precise control device and an air path control device, so that air is inflated in an air bag to pulsate, and a human body is supported to be suspended.

The utility model patent application with publication number CN209996651U discloses a suspension bed back cushion and a suspension bed, the suspension bed back cushion comprises a base, an inflatable air bag and a face mask; the bottom surface of the base is provided with a limiting clamping groove which can be matched with the protruding edge of the bed frame, the inflatable air bag is matched with the base when not inflated, and the bottom of the inflatable air bag is connected to the upper surface of the base; the edge of one side of the face mask is connected with the edge of the top of the inflatable air bag in a matching way, and the edge of the other side of the face mask is used for being connected with a bed surface on the bedstead.

The utility model patent application with publication number CN213851623U discloses a device of raising of suspension bed, including two be used for the cover to establish the connecting seat at the bed body middle part both sides edge of suspension bed, set up on the connecting seat and be used for fixing the fastening components on the bed body of suspension bed with the connecting seat, both ends rotate the U type support of connection between two connecting seats, set up on U type support and supply the support cloth cover that patient upper part and head shelved, set up between U type support and connecting seat and be used for the adjustment mechanism of multistage regulation U type support angle.

It can be seen that the existing suspension bed can only simply enable the back of a patient to be lifted and inclined, and multi-angle adjustment cannot be realized.

Disclosure of Invention

The invention aims to solve the technical problem of providing a multifunctional air suspension bed which can adjust the angle of a bed body and is simple to operate.

The technical scheme adopted by the invention is as follows:

a multifunctional air suspension bed comprises a bed body, a base and a position adjusting device which is arranged on the base and connected with the bed body;

the position adjusting device comprises a first lifting column, a second lifting column and a third lifting column which are arranged in a triangular shape and mounted on the base, and the tops of the three lifting columns are connected with the bottom of the bed body.

Furthermore, the top end of the first lifting column is hinged with the bottom of the bed body, sliding grooves are formed in the positions, corresponding to the second lifting column and the third lifting column, of the bottom of the bed body, pulleys are mounted at the tops of the second lifting column and the third lifting column, and the pulleys are matched with the corresponding sliding grooves.

Furthermore, the first lifting column, the second lifting column and the third lifting column are controlled to act through a control device; the control device comprises a base with a rectangular cross section, miniature force measuring sensors arranged on four side surfaces of the base, and an upper pressure receiving plate, a front pressure receiving plate, a lower pressure receiving plate and a rear pressure receiving plate which are correspondingly arranged on the miniature force measuring sensors, wherein the control device is arranged on the bed body.

Further, the bed body comprises a bed frame, an upper body bed board, a middle bed board and a leg bed board, wherein the upper body bed board, the middle bed board and the leg bed board are arranged on the bed frame, upper body side baffles are arranged on two sides of the width of the upper body bed board, lower body side baffles are arranged on the left side and the right side of the leg bed board, a head baffle and a foot baffle are respectively arranged on two sides of the bed frame in the length direction, and the sliding groove is formed in the bottom surface of the bed frame.

Furthermore, be equipped with inefficacy decelerator in the spout, inefficacy decelerator includes and installs the speed reduction baffle on the spout top surface through the pivot, sets up the electro-magnet in speed reduction baffle free end top, sets up in speed reduction baffle free end top and with the corresponding magnetic pole of electro-magnet and set up the limiting plate in speed reduction baffle free end top through the pivot.

Furthermore, the left side wall and the right side wall of the sliding groove are provided with limiting grooves, the two side walls of the speed reduction baffle are matched with the corresponding limiting grooves, and when the speed reduction baffle deflects downwards to the limiting position of the limiting groove, the limiting plate deflects under the action of self gravity until the axis of the limiting plate is perpendicular to the top surface of the speed reduction baffle.

Furthermore, a speed measuring device for measuring the moving speed of the pulley is arranged in the sliding chute.

Further, a mattress is arranged in the bed body, and the mattress comprises a bed single layer, a fluctuation massage air cushion layer, a temperature control layer and a body position changing air cushion layer which are sequentially arranged from top to bottom;

the wave massage air cushion layer comprises air bags A and B which are arranged at intervals in a crossed mode, an inflator pump A and an electromagnetic valve A which are communicated with the air bags A, and an inflator pump B and an electromagnetic valve B which are communicated with the air bags B.

Further, the control by temperature change layer includes ventilation pipe way, liter/cooling pipe way, air dryer and liter/cooling fan, a plurality of that the ventilation pipe way set up for parallelly connecting just all communicates with air dryer, and a plurality of that the rise/cooling pipe way also set up for parallelly connecting just all communicates with liter/cooling fan, all is equipped with the gas pocket on ventilation pipe way and liter/cooling pipe way.

Furthermore, the position conversion air cushion layer comprises an air bag A and an air bag B which are arranged side by side along the width direction, the air bag A is communicated with an inflator pump C and an electromagnetic valve C, the air bag B is communicated with an inflator pump D and an electromagnetic valve D, and the length of the air bag A and the length of the air bag B are half of the whole length of the mattress.

The invention has the positive effects that: the bed body is supported by the three lifting columns, the height and the inclination angle of the bed body can be adjusted by adjusting the heights of two lifting columns, and one end of the bed body can be lifted upwards.

The bed body can be adjusted by applying forces in different directions to the micro force transducers and then carrying out logic control through the control device, and the bed body is very concise and convenient to use.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the mounting position of the chute of the present invention;

FIG. 3 is a schematic view of a bed frame according to the present invention;

FIG. 4 is a schematic structural diagram of a control device according to the present invention;

FIG. 5 is a diagram illustrating a stress state of the control device according to the present invention;

FIG. 6 is a schematic structural view of a deceleration device in accordance with the present invention;

FIG. 7 is a schematic view of the operation state of the deceleration device in failure according to the present invention;

FIG. 8 is a schematic view of a mattress construction according to the present invention;

FIG. 9 is a schematic view of the overall structure of the mattress of the present invention;

FIG. 10 is a schematic view of a single-layer structure of a bed according to the present invention;

FIG. 11 is a schematic view of a wave massage cushion layer structure according to the present invention;

FIG. 12 is a schematic view showing the relative arrangement of the air bags A and B;

FIG. 13 is a schematic view of the working state of the wave massage air cushion layer according to the present invention;

FIG. 14 is a schematic view of a temperature control layer structure according to the present invention;

FIG. 15 is a schematic diagram of a structure of a posture changing air cushion layer according to the present invention.

Detailed Description

Example 1

As shown in fig. 1-4, the present invention comprises a base 3 and a bed body mounted on the base 3 by a position adjusting device.

The bed body comprises a bed frame 17, an upper body bed board 10, a middle bed board 9 and a leg bed board 6 which are arranged on the bed frame 17, wherein upper body side baffle plates 2 are arranged on two sides of the width of the upper body bed board 10, lower body side baffle plates 4 are arranged on the left side and the right side of the leg bed board 6, and a head baffle plate 1 and a foot baffle plate 5 are respectively arranged on two sides of the bed frame 17 in the length direction. The upper body bed board 10, the middle bed board 9 and the leg bed board 6 all have the turning-up function.

The position adjusting device comprises a first lifting column 12, a second lifting column 13 and a third lifting column 14 which are arranged in a triangular shape and arranged on the base 3, and the tops of the three lifting columns are all connected with the bottom surface of the bed body. Preferably, the third lifting column 14 is located at a position close to the head and at the center of the bed in the width direction, and the first and second lifting columns are located at positions close to the legs of the bed.

The top end of the first lifting column 12 is hinged with the bottom of the bed frame, the tops of the second lifting column 13 and the third lifting column 14 are provided with pulleys 16, and the corresponding position on the bed frame is provided with a sliding groove 15 matched with the pulleys 16. Specifically, the sliding groove matched with the third lifting column 14 is arranged along the length direction of the bed body, and the sliding groove matched with the second lifting column 13 is arranged along the width direction of the bed body.

The three lifting columns are all electrically connected with the control device, and the movement of the three lifting columns is coordinated through the control device. The control device comprises a base 18 with a rectangular cross section, micro load cells 19 arranged on four side surfaces of the base, and an upper pressure receiving plate 20, a front pressure receiving plate 21, a lower pressure receiving plate 22 and a rear pressure receiving plate 23 which are correspondingly arranged on the micro load cells 19, and the control device is arranged on the foot baffle 5 and the lower body side baffle 4 of the bed body.

The control logic of the present invention is exemplified as follows:

1. applying an anticlockwise force to a control device of a foot baffle of the bed body, as shown in the attached drawing 5, simultaneously stressing the left miniature force transducers of the upper pressure receiving plate 20 and the right miniature force transducers of the lower pressure receiving plate 22, transmitting the stress direction and the stress magnitude to the control device by the miniature force transducers, calculating and identifying force measurement signals sent by all the miniature force transducers by the control device, identifying one or two miniature force transducers with the largest stress, detecting a specified command instruction, giving a left-side turning command of the bed body, controlling the first lifting column and the third lifting column to lift, and controlling the second lifting column 13 to descend, realizing the left-side turning function of the bed body, always applying the anticlockwise force to the control device, and stopping changing after the left side of the bed body turns to the maximum position; when clockwise force is applied to the control device, namely the left miniature load cell of the lower pressure plate 22 and the right miniature load cell of the upper pressure plate 20 are simultaneously stressed, the control device gives a left turning back command of the bed body, controls the first lifting column and the third lifting column to descend, and raises the second lifting column 13 to realize the left turning back function of the bed body, the bed body starts to return from the left turning position, and when the applied force is continuous, the bed body returns to a flat state (a reference position); when the clockwise force is continuously applied, the control device can control the bed body to keep a time delay of the reference position at the reference position, after the time delay, the control device continuously receives a force measurement signal of the clockwise force, the bed body starts the right side overturning function, and the function realization steps are the same as the left side overturning function.

2. The control device can calculate and identify force measuring signals sent by all the micro sensors, identify one or two micro force measuring sensors with the largest stress, detect an appointed command instruction, give an appointed command of bed body descending, control three lifting columns to descend simultaneously, and realize the bed body descending command.

3. The control device can calculate and identify force measuring signals sent by all the micro sensors, identify one or two micro force measuring sensors with the largest stress, detect an appointed command instruction, give an appointed command of bed body lifting, control three lifting columns to lift simultaneously, and realize the lifting of the bed body.

4. Applying a forward force to a rear pressure receiving plate of the foot baffle control device, detecting the stress condition by the micro force transducers on the left side and the right side of the rear pressure receiving plate at the same time, calculating and identifying force measurement signals sent by all the micro force transducers by the control device, identifying one or two micro force transducers with the largest stress, detecting a specified command instruction, giving a forward tilting command of the whole machine body, controlling the lifting of the third lifting column 14, and lowering the first lifting column and the second lifting column to realize the forward tilting of the whole machine body; the control device can calculate and identify force measuring signals sent by all the micro sensors, identify one or two micro force measuring sensors with the largest stress, detect a specified command instruction, give a back tilting command of the whole machine body, control the third lifting column 14 to descend, and control the first lifting column and the second lifting column to ascend, so that the whole machine body can tilt backwards.

In a similar way, the upper half body side baffle control device is applied with force of each pressure receiving plate, the control device detects out a specified command instruction according to the micro force measuring sensor signal of each pressure receiving plate, controls the power devices of the upper body bed plate, the middle bed plate and the leg bed plate, and realizes the functions of back lifting, leg lifting and back-leg linkage.

Example 2

When in use, in order to prevent the bed body from rapidly descending when the second lifting column 13 and the third lifting column 14 are invalid, an invalid speed reducing device is arranged in the sliding groove 15. The failure reduction unit is arranged at the end of the chute 15 close to the outside of the bed, considering that the failure of the bed is more dangerous if the bed is at a high altitude.

As shown in fig. 6 and 7, the deactivating deceleration device includes a deceleration baffle 24 mounted on the top surface of the chute 15 by a rotating shaft, an electromagnet 26 disposed above the free end of the deceleration baffle 24, a magnetic pole 27 disposed above the free end of the deceleration baffle 24 and corresponding to the electromagnet 26, and a stopper plate 25 disposed above the free end of the deceleration baffle 24 by the rotating shaft. The limiting plate is approximately in a water-drop shape, but the lowest end of the limiting plate is a plane, so that the limiting plate is convenient to be matched with the speed reduction baffle.

The left side wall and the right side wall of the sliding chute 15 are provided with limiting grooves 28, the two side walls of the speed reduction baffle plate 24 are matched with the corresponding limiting grooves 28, and when the speed reduction baffle plate 24 deflects downwards to the limiting position of the limiting grooves 28, the limiting plate 25 deflects to the position that the axis is vertical to the top surface of the speed reduction baffle plate 24 under the action of self gravity.

Under the normal use state, electro-magnet 26 adsorbs magnetic pole 27, make limit baffle 24 hide in the top surface trompil of spout 15, when the lift post that corresponds became invalid and result in the pulley velocity of motion too fast, electro-magnet 26 carries out reverse circular telegram, make it repel each other with magnetic pole 27, outwards release speed reduction baffle 24, to the bottommost position of spacing groove 28, in the in-process that speed reduction baffle 24 deflected, limiting plate 25 also deflects by self gravity, there is a spacing post on the right side of limiting plate 25, when it and spacing post contact, just perpendicular with limit baffle 24, prevent that limit baffle 24 from reseing.

In the time of the in-service use, in order to play better speed reduction effect, spout 15 should adopt the square tube form, at its bottom surface middle part fluting, is convenient for make the lift post stretch into, and the pulley assembly is in the spout, and is equipped with rubber in the outer fringe of pulley, under the effect of speed reduction baffle 24, extrudees pulley 16 gradually, realizes slowing down to prevent that the bed body from appearing one side because of the lift post inefficacy and descending rapidly and leading to the secondary damage to patient to appear.

Example 3

As shown in figures 8-15, the mattress comprises a bed layer 29, a wave massage air cushion layer 30, a temperature control layer 31 and a posture changing air cushion layer 32 which are arranged from top to bottom in sequence.

The bed single layer 29 is positioned at the uppermost position and is used for being in direct contact with a patient, a hollow breathable bed sheet is adopted, and media such as gauze capable of absorbing liquid can be placed on the hollow breathable bed sheet.

The second layer is a wave massage air cushion layer 30, which is composed of a plurality of air bags A3001 and air bags B3002 arranged along the width direction of the mattress and arranged at intervals in a crossed manner, wherein the air bags A3001 are communicated with an inflator pump A3003 and an electromagnetic valve A3004, and the air bags B3002 are communicated with an inflator pump B3005 and an electromagnetic valve B3006, so that the inflation and deflation of the inflator pump A/B and the electromagnetic valve A/B can be controlled, the periodic alternate inflation and deflation of the air bags A3001 and the air bags B3002 are formed, the surface of the mattress is enabled to form wave, and the blood circulation of a patient is promoted.

Preferably, a pressure sensor is provided on a connection line between the inflator a3003 and the solenoid valve a3004 and a connection line between the inflator B3005 and the solenoid valve B3006.

The temperature control layer 31 includes a plurality of ventilation pipelines 3101 arranged in parallel and a plurality of temperature rise/decrease pipelines 3102 arranged in parallel, the plurality of ventilation pipelines 3101 are communicated with a ventilation dryer 3103, the plurality of temperature rise/decrease pipelines 3102 are communicated with a temperature rise/decrease fan 3104, a filtering device is arranged at an air inlet of the temperature rise/decrease fan 3104, germs, dust and the like in the filtered air are filtered, and the fan is provided with a dehumidifying device to ensure the drying of cold/hot air.

Air holes are formed in both the ventilation pipeline 3101 and the temperature raising/lowering pipeline 3102, and through holes corresponding to the air holes formed in the ventilation pipeline 3101 are formed between the air bag a3001 and the air bag B3002, so that air can smoothly pass through the wave massage air cushion layer 30 to reach an upper position. The temperature rising/reducing pipeline can rise/reduce the temperature of the fluctuation massage air cushion layer 30 through the micro air holes, and the ventilation pipeline can ventilate the contact position of a patient and a bed sheet through the micro air holes, so that the ventilation and drying of the contact position are guaranteed. In this embodiment, the left and right sides of each ventilation line 3101 are provided with temperature raising/lowering lines 3102.

Preferably, the air bags a3001 and B3002 are cylindrical, and a set of ventilation lines 3101 and a set of temperature raising/lowering lines 3102 are provided in the lower space between each adjacent two air bags.

A temperature sensor is provided between the bed single layer 29 and the wave massage air cushion layer 30 to monitor the temperature of the wave massage air cushion layer in real time.

The body position changing air cushion layer 32 comprises an air bag A3201 and an air bag B3202 which are arranged side by side along the width direction, the air bag A3201 is communicated with an inflator C3203 and a solenoid valve C3204, the air bag B3202 is communicated with an inflator D3205 and a solenoid valve D3206, and the length of the air bag A3201 and the air bag B3202 is half of the whole length of the mattress. When the inflator pump C/D is controlled to inflate, the upper half body of the patient can be lifted, and therefore the body position of the patient can be changed.

The mattress also has a control system for receiving state information such as temperature, pressure and the like and coordinating the working states of the air inflation pumps, the electromagnetic valves and the like.

Claims

1. A multifunctional air suspension bed is characterized by comprising a bed body, a base (3) and a position adjusting device which is arranged on the base (3) and is connected with the bed body;

the position adjusting device comprises a first lifting column (12), a second lifting column (13) and a third lifting column (14) which are arranged on the base (3) in a triangular shape, and the tops of the three lifting columns are connected with the bottom of the bed body;

a failure speed reducer is arranged between the bottom of the bed body and the second lifting column (13) and the third lifting column (14);

the top end of the first lifting column (12) is hinged with the bottom of the bed body, sliding grooves (15) are formed in the positions, corresponding to the second lifting column (13) and the third lifting column (14), of the bottom of the bed body, pulleys (16) are mounted at the tops of the second lifting column (13) and the third lifting column (14), and the pulleys (16) are matched with the corresponding sliding grooves (15);

the first lifting column (12), the second lifting column (13) and the third lifting column (14) control the actions thereof through a control device; the control device comprises a base (18) with a rectangular cross section, miniature force transducers (19) arranged on four side surfaces of the base, and an upper pressure receiving plate (20), a front pressure receiving plate (21), a lower pressure receiving plate (22) and a rear pressure receiving plate (23) which are correspondingly arranged on the miniature force transducers (19), and is arranged on the bed body;

the bed body comprises a bed frame (17), an upper body bed board (10) arranged on the bed frame (17), a middle bed board (9) and a leg bed board (6), wherein upper body side baffle plates (2) are arranged on two sides of the width of the upper body bed board (10), lower body side baffle plates (4) are arranged on the left side and the right side of the leg bed board (6), a head baffle plate (1) and a foot baffle plate (5) are respectively arranged on two sides of the bed frame (17) in the length direction, and a sliding groove is formed in the bottom surface of the bed frame (17);

a failure speed reducer is arranged in the sliding chute (15), and comprises a speed reduction baffle (24) arranged on the top surface of the sliding chute (15) through a rotating shaft, an electromagnet (26) arranged above the free end of the speed reduction baffle (24), a magnetic pole (27) arranged above the free end of the speed reduction baffle (24) and corresponding to the electromagnet (26), and a limiting plate (25) arranged above the free end of the speed reduction baffle (24) through the rotating shaft;

limiting grooves (28) are formed in the left side wall and the right side wall of the sliding groove (15), the two side walls of the speed reduction baffle (24) are matched with the corresponding limiting grooves (28), and when the speed reduction baffle (24) deflects downwards to the limiting position of the limiting grooves (28), the limiting plate (25) deflects to the position that the axis of the limiting plate is perpendicular to the top surface of the speed reduction baffle (24) under the action of self gravity.

2. A multifunctional air-suspension bed as claimed in claim 1, characterized in that a speed measuring device for measuring the moving speed of the pulley (16) is arranged in the chute (15).

3. The multifunctional air suspension bed as claimed in claim 1, characterized in that the mattress comprises a bed single layer (29), a wave massage air cushion layer (30), a temperature control layer (31) and a posture changing air cushion layer (32) which are arranged from top to bottom in sequence;

the wave massage air cushion layer (30) comprises an air bag A (3001) and an air bag B (3002) which are arranged at intervals in a crossed mode, an inflator pump A (3003) and an electromagnetic valve A (3004) which are communicated with the air bag A (3001), and an inflator pump B (3005) and an electromagnetic valve B (3006) which are communicated with the air bag B (3002).

4. The multifunctional air suspension bed according to claim 3, wherein the temperature control layer (31) comprises a plurality of ventilation pipelines (3101), a temperature rising/reducing pipeline (3102), a ventilation dryer (3103) and a temperature rising/reducing fan (3104), the ventilation pipelines (3101) are arranged in parallel and are all communicated with the ventilation dryer (3103), the temperature rising/reducing pipeline (3102) is also arranged in parallel and is all communicated with the temperature rising/reducing fan (3104), and the ventilation pipelines (3101) and the temperature rising/reducing pipeline (3102) are both provided with air holes.

5. The multifunctional air-suspension bed as claimed in claim 3, wherein the posture changing air cushion layer (32) comprises an air bag A (3001) and an air bag B (3002) arranged side by side in the width direction, the air bag A (3001) is communicated with an inflator C (3203) and a solenoid valve C (3204), the air bag B (3002) is communicated with an inflator D (3205) and a solenoid valve D (3206), and the length of the air bag A (3001) and the air bag B (3002) is half of the whole length of the mattress.