阅读说明：本技术 一种智能医用电动病床 (Intelligent medical electric sickbed ) 是由 李华京 陈禹伸 于 2020-12-18 设计创作，主要内容包括：一种智能医用电动病床,包括床主体、床头架、背板、中板、脚板、床尾架、背板调整组件、脚板调整组件、驱动组件和摇把,所述床主体的两端设有床头架和床尾架,所述床主体(1)的边缘设置有控制盒(12),所述控制盒(12)内安装STM32系列芯片传感组件、铁锂电池、三轴石英加速度计,以及床头伺服电路、腰部伺服电路以及床尾伺服电路。该基于STM32医用电动病床,调整组件结构简单可靠,适合普遍推广使用。(The utility model provides a medical electric hospital bed of intelligence, includes bed main part, headstock, backplate, medium plate, sole, tailstock, backplate adjusting part, sole adjusting part, drive assembly and crank, the both ends of bed main part are equipped with headstock and tailstock, the edge of bed main part (1) is provided with control box (12), install STM32 series chip sensing component, lithium iron battery, three-axis quartz accelerometer in control box (12) to and head of a bed servo circuit, waist servo circuit and tailstock servo circuit. This based on medical electric sick bed of STM32, adjustment subassembly simple structure is reliable, is fit for generally using widely.)

1. The utility model provides a medical electronic sick bed of intelligence, its characterized in that, includes bed main part (1), headstock (2), backplate (3), medium plate (4), sole (5), tailstock (6), backplate adjusting part (7), sole adjusting part (8), drive assembly (9) and crank (10), its characterized in that: the bed is characterized in that a bed head frame (2) and a bed tail frame (6) are arranged at two ends of the bed body (1), the bed head frame (2) and the bed tail frame (6) are made by bending steel pipes, the bed head frame (2) penetrates through two ends of the bed body (1) and is fixedly welded with the bed body (1), a plurality of groups of vertical columns distributed in a linear array mode are welded in the middle of the bed head frame (2) and the bed tail frame (6), the outline of the bed body (1) is of a rectangular frame-shaped structure, a back plate (3), a middle plate (4) and a foot plate (5) are arranged inside the bed body (1), a back plate adjusting assembly (7) for pushing the back plate (3) to move and a foot plate adjusting assembly (8) for pushing the foot plate (5) to move are arranged on the lower side of the bed tail frame (6), a lower beam (11) is arranged on the lower side of the bed tail frame (6), a group of driving assemblies (9) are arranged, the edge of bed main part (1) is provided with control box (12), install STM32 series chip sensing component, lithium iron battery, three-axis quartz accelerometer in control box (12) to and head of a bed servo circuit, waist servo circuit and tailstock servo circuit, lithium iron battery electricity links chip sensing component the three-axis quartz accelerometer and backplate adjusting part (7), sole adjusting part (8), drive assembly (9) and crank (10) electricity link, backplate adjusting part (7), sole adjusting part (8), drive assembly (9) parallel connection.

2. The intelligent medical electric sickbed according to claim 1, characterized in that: hexagonal grooves are formed in one ends, where the driving assemblies (9) are installed, of the back plate adjusting assembly (7) and the foot plate adjusting assembly (8), and the crank (10) is provided with a handle hexagonal head (1001) corresponding to the hexagonal groove profiles of the foot plate adjusting assembly (8) and the driving assembly (9).

3. The intelligent medical electric sickbed according to claim 1, characterized in that: the driving assembly (9) comprises a motor (901), a hoop (902), a ring screw (903), a T-shaped connecting piece (904), a gasket (905) and a connecting screw (906), a group of vertical machine vertical shafts (9011) is arranged on a shell at the upper end and the lower end of the motor (901), an output shaft of the motor (901) is tubular, a longitudinal pipe groove (9012) and a transverse pipe groove (9013) are formed in two ends of an output shaft of the motor (901), a group of hoop (902) is sleeved on two ends of the output shaft of the motor (901), a ring through hole (9021) and a ring threaded hole (9022) are formed in two ends of the hoop (902), and the ring screw (903) penetrates through the ring through hole (9021) and enters the ring threaded hole (9022).

4. The intelligent medical electric sickbed according to claim 3, characterized in that: a sliding groove (9041) is formed in the block structure in the middle of the T-shaped connecting piece (904), a piece fixing groove (9042) is formed in each of the two groups of sheet structures of the T-shaped connecting piece (904), a connecting screw (906) is arranged in each piece fixing groove (9042), the connecting screw (906) on the upper side is screwed into the bed main body (1), the connecting screw (906) on the lower side is screwed into the lower beam (11), the vertical shaft (9011) extends into the piece sliding groove (9041), and the connecting screw (906) penetrates through the T-shaped connecting piece (904) after penetrating through a gasket (905).

5. The intelligent medical electric sickbed according to claim 3, characterized in that: the hoop (902) is sleeved on the outer circle part of the output shaft of the motor (901) where the pipe transverse groove (9013) is located.

6. The intelligent medical electric sickbed according to claim 1, characterized in that: the control box (12) comprises a box screw (1201), a box cover (1202), a toggle switch (1203), a speed regulator (1204), a control circuit board (1205) and a box body (1206), the outline of the box body (1206) is of a rectangular box-shaped structure, two groups of aviation plugs are arranged on one group of box walls of the control circuit board (1205), a plurality of groups of upright posts with threaded holes formed in the tops are arranged inside the box body (1206), the control circuit board (1205) and the speed regulator (1204) are positioned above the upright posts, the speed regulator (1204) and the control circuit board (1205) pass through holes in the edges of the upright posts to finish fixation, a group of toggle switches (1203) are respectively inserted in two groups of structures above the control circuit board (1205), and interfaces of the toggle switches (1203) and the control circuit board (1205) adopt a foolproof design, the speed regulator is characterized in that a vertical cylindrical adjusting knob is arranged above the speed regulator (1204), the box cover (1202) covers the box body (1206), the box cover (1202) penetrates through a through hole in the edge of the box cover through a box screw (1201) to enter the threaded hole in the upper edge of the box body (1206) to be fixed with the box body (1206), three groups of openings are formed in the box cover (1202), and the positions of the openings correspond to the positions of the upper side part of the toggle switch (1203) and the upper side part of the speed regulator (1204).

Technical Field

The invention belongs to the technical field of sickbeds, and particularly relates to an intelligent medical electric sickbed.

Background

China has entered the line of population-aging countries earlier by 10 months in 1999 and continues to grow at a rate of 3.32% per year. According to the statistical data, about 79.1% of the old have at least one or more chronic diseases, the self-care ability of the old is weakened, and the dependence on families, communities and governments is increased. The concern of family nursing to the old is gradually weakened, and the difficulty of nursing the old and the disabled is increased objectively.

Medical care instruments have more and more high and new technology content, and the requirements on new processes, new designs and new materials are higher and higher. The multifunctional nursing bed is high in cost, the development of domestic nursing beds can not meet actual requirements, and the reasons that the functions are single, the automation degree is low and the like are one of the reasons that the existing multifunctional nursing beds cannot be popularized in a large scale.

The nursing bed is a sickbed used by a patient who is inconvenient to move in hospital or in home nursing, is a more comfortable electric sickbed which is convenient for medical care personnel to recover, has a nursing effect, and can promote the alleviation and recovery of the state of an illness of the patient.

The sick bed that present hospital used mostly is hand sick bed, and patient if needs adjustment sick bed height, still need other people's help, and patient is very restricted, and the electronic sick bed of minority accessible electric control simultaneously, its in-process of using, the function is simple, at the in-process of nursing application, awkward problem appears easily to influence the effect of nursing use.

For this reason, the team of the present invention proposes a series of solutions in order to improve the intelligence degree of electric hospital beds, such as CN106137612A, CN106137614A, CN106074043A, CN105997396A, CN105997397A, CN106137613A, CN106176085A, CN106176093A, CN106074040A, CN106137605A, CN105997398A, CN106074035A, CN105997391A, CN106137604A, CN106074046A, CN106074045A, CN106074041A, CN106137615A, CN106137621A, CN106074042A, CN106074049A, CN106074048A, CN106137619A, CN106137620A, CN106074047A, CN106020069A, CN106176094A, CN105997392A, CN106137618A, CN106074036A, CN106137617A, CN106137616A, CN106137606A, CN106074044A, and CN 106667684A. The intellectualization of the electric sickbed is realized by adopting single-core or dual-core, single-wheel, double-wheel and four-wheel drive. The contents of which are incorporated herein by reference.

Disclosure of Invention

In view of the technical problems in the prior art, the invention aims to provide an intelligent medical electric sickbed with a simple structure and low cost, so as to solve various inconveniences in the process of nursing patients, and each electric sickbed can meet the requirements of different patients to the maximum extent.

In order to achieve the purpose, the invention provides the following technical scheme: a medical electric sickbed based on STM32 comprises a bed main body, a headstock, a backboard, a middle plate, a foot plate, a tailstock, a backboard adjusting component, a foot plate adjusting component, a driving component and a crank, wherein the headstock and the tailstock are arranged at two ends of the bed main body and are made of steel pipes in a bending mode, the headstock penetrates through two ends of the bed main body and is fixedly welded with the bed main body, a plurality of groups of vertical stand columns distributed in a linear array mode are welded in the middle of the headstock and the tailstock, the outline of the bed main body is of a rectangular frame-shaped structure, the backboard, the middle plate and the foot plate are arranged inside the bed main body, the backboard adjusting component for pushing the backboard to move and the foot plate adjusting component for pushing the foot plate to move are arranged on the lower side of the bed main body, a lower beam is arranged on the lower side of the tailstock, a group of driving components are arranged on the backboard adjusting component and the foot plate adjusting component, and, install STM32 series chip sensing component, lithium iron battery, three-axis quartz accelerometer in the control box to and head of a bed servo circuit, waist servo circuit and tailstock servo circuit, lithium iron battery electricity links chip sensing component the three-axis quartz accelerometer and backplate adjusting part, sole adjusting part, drive assembly and crank electricity link, backplate adjusting part, sole adjusting part, drive assembly parallel connection.

Preferably, hexagonal grooves are formed in one ends, where the driving assemblies are installed, of the back plate adjusting assembly and the foot plate adjusting assembly, and the crank is provided with a handle hexagonal head corresponding to the profiles of the hexagonal grooves of the foot plate adjusting assembly and the driving assemblies.

Preferably, the driving assembly comprises a motor, a hoop, a ring screw, a T-shaped connecting piece, a gasket and a connecting screw, a group of vertical shafts are arranged on the shells of the upper end and the lower end of the motor respectively, the output shaft of the motor is tubular, a longitudinal pipe groove and a transverse pipe groove are formed in the two ends of the output shaft of the motor respectively, a group of hoops are sleeved at the two ends of the output shaft of the motor respectively, a ring through hole and a ring threaded hole are formed in the two ends of each hoop respectively, and the ring screw penetrates through the ring through hole and enters the ring threaded hole.

Preferably, a sliding groove is formed in the block structure in the middle of the T-shaped connecting piece, a component fixing groove is formed in each of the two groups of sheet structures of the T-shaped connecting piece, connecting screws are arranged in the component fixing grooves, the connecting screws on the upper side are screwed into the bed main body, the connecting screws on the lower side are screwed into the lower beam, the vertical shaft extends into the component sliding groove, and the connecting screws penetrate through the T-shaped connecting piece after penetrating through the gasket.

Preferably, the hoop is sleeved on the excircle part of the output shaft of the motor where the tube transverse groove is located.

Preferably, the control box comprises a box screw, a box cover, a toggle switch, a speed regulator, a control circuit board and a box body, the outline of the box body is in a rectangular box-shaped structure, two groups of aviation plugs are arranged on one group of box walls of the control circuit board, a plurality of groups of upright columns with threaded holes at the tops are arranged in the box body, the control circuit board and the speed regulator are positioned above the upright columns, the speed regulator and the control circuit board pass through holes at the edges of the box screw to enter the upright columns in the box body to complete fixation, a group of toggle switch is respectively inserted in the two groups of structures above the control circuit board, interfaces of the toggle switch and the control circuit board adopt a foolproof design, a vertical cylindrical adjusting knob is arranged above the speed regulator, the box cover covers the box body, the box cover passes through the through holes at the edges of the box screw, three groups of openings are formed in the box cover, and the positions of the openings correspond to the positions of the upper side part of the toggle switch and the upper side part of the speed regulator.

According to the medical electric sickbed based on STM32, the backboard adjusting component and the backboard adjusting component are rotated by the driving component, so that the position adjustment of the backboard and the backboard is realized, and the trouble of manual adjustment is avoided; the foot plate adjusting assembly and the back plate adjusting assembly can be directly operated through the crank, so that the problem that the driving assembly cannot work due to failure can be avoided; the driving assembly can adapt to the refitting of other manual sickbeds driven by cranks and can be used as a refitting kit of an electric sickbed manufacturer for standby.

According to the medical electric sickbed based on the STM32, the hexagonal grooves are formed in the ends, where the driving assemblies are installed, of the back plate adjusting assembly and the foot plate adjusting assembly, the cranks are provided with the hexagonal heads corresponding to the outlines of the hexagonal grooves of the foot plate adjusting assembly and the driving assemblies, so that the safety of the sickbed can be greatly improved, and head servo control, leg servo control and waist servo control can be very stably realized by matching with an STM32 series chip controller, a three-axis quartz accelerometer, a head servo circuit, a waist servo circuit and a bed tail servo circuit, so that a patient can adjust the back plate and the foot plate through keys, and the nursing intelligence degree and the safety are greatly improved.

Drawings

Fig. 1 is a schematic structural view of an intelligent medical electric hospital bed according to an embodiment of the present invention;

fig. 2 is a schematic structural view of a driving assembly of an intelligent medical electric hospital bed according to an embodiment of the present invention in a separated state;

fig. 3 is a schematic structural view of a motor of an intelligent medical electric hospital bed according to an embodiment of the present invention;

fig. 4 is a schematic view of a hoop structure of an intelligent medical electric hospital bed according to an embodiment of the present invention;

fig. 5 is a schematic structural view of a T-shaped connector of an intelligent medical electric hospital bed according to an embodiment of the present invention;

fig. 6 is a schematic view of a crank structure of an intelligent medical electric hospital bed according to an embodiment of the present invention;

fig. 7 is a schematic view of an external structure of a control box of an intelligent medical electric hospital bed according to an embodiment of the present invention;

fig. 8 is a schematic structural view of a separated state of a control box of an intelligent medical electric hospital bed according to an embodiment of the present invention;

fig. 9 is a schematic structural diagram of an upper side of a control circuit board of an intelligent medical electric hospital bed according to an embodiment of the present invention;

fig. 10 is a schematic structural diagram of a box body of an intelligent medical electric sickbed according to an embodiment of the present invention.

In the figure: 1 bed main body, 2 headstock, 3 back plate, 4 middle plates, 5 foot plates, 6 tailstock, 7 back plate adjusting component, 8 foot plate adjusting component, 9 driving component, 901 motor, 9011 vertical shaft, 9012 pipe longitudinal groove, 9013 pipe transverse groove, 902 hoop ring, 9021 ring through hole, 9022 ring threaded hole, 903 ring screw, 904T-shaped connecting piece, 9041 sliding groove, 9042 fixing groove, 905 gasket, 906 connecting screw, 10 crank, handle hexagon head, 11 underbeam, 12 control box, 1201 box screw, 1202 box cover, 1203 toggle switch, 1204 speed regulator, 1205 control circuit board, 1206 box body.

Detailed Description

The present invention will now be described more fully hereinafter with reference to the accompanying drawings, in which embodiments of the invention are shown and described, it being understood that the examples are given by way of illustration only and that the invention is not limited to the specific embodiments shown.

As shown in fig. 1-10, a medical electric sickbed based on STM32 comprises a bed main body 1, a headstock 2, a backboard 3, a middle plate 4, a foot plate 5, a tailstock 6, a backboard adjusting component 7, a foot plate adjusting component 8, a driving component 9 and a crank 10, wherein the headstock 2 and the tailstock 6 are arranged at two ends of the bed main body 1, the headstock 2 and the tailstock 6 are both made of steel pipes by bending, the headstock 2 penetrates through two ends of the bed main body 1 and is welded and fixed with the bed main body 1, a plurality of groups of vertical upright posts distributed in a linear array manner are welded at the middle parts of the headstock 2 and the tailstock 6, the bed main body 1 is in a rectangular frame-shaped structure in outline, the backboard 3, the middle plate 4 and the foot plate 5 are arranged inside the bed main body 1, the backboard adjusting component 7 for pushing the backboard 3 to move and the foot plate adjusting component 8 for pushing the foot plate 5 to move are arranged at the lower, 6 downside of tailstock is equipped with underbeam 11, a set of drive assembly 9 is all installed to backplate adjusting part 7 and sole adjusting part 8, the edge of bed main part 1 is provided with control box 12, install STM32 series chip sensing component, lithium iron battery, triaxial quartz accelerometer in the control box 12 to and head of a bed servo circuit, waist servo circuit and tailstock servo circuit, lithium iron battery electricity links chip sensing component the triaxial quartz accelerometer and backplate adjusting part 7, sole adjusting part 8, drive assembly 9 and crank 10 electricity link, backplate adjusting part 7, sole adjusting part 8, drive assembly 9 parallel connection.

As shown in fig. 1, hexagonal grooves are formed in one ends of the backboard adjusting component 7 and the foot board adjusting component 8, where the driving component 9 is installed, the crank handle 10 is provided with handle hexagonal heads corresponding to the hexagonal groove profiles of the foot board adjusting component 8 and the driving component 9, the crank handle is used for manual standby in a circuit fault, maintenance or low-power state, and the crank handle 10 is driven to rotate by the driving component 9 in a normal working state. The control of the control box 12 is realized by a toggle switch, or by a remote control board, or by a button of a control panel arranged beside the electric sickbed.

Fig. 2 is a schematic structural diagram of a separation state of a driving assembly based on an STM32 medical electric sickbed according to an embodiment of the invention. FIG. 3 is a schematic view of a motor structure; fig. 4 is a schematic view of the hoop structure.

As shown in fig. 2 to 5, the driving assembly 9 includes a motor 901, a hoop 902, a ring screw 903, a T-shaped connecting member 904, a gasket 905, and a connecting screw 906, a set of vertical shafts 9011 is respectively disposed on a housing at an upper end and a lower end of the motor 901, an output shaft of the motor 901 is tubular, a longitudinal pipe groove 9012 and a transverse pipe groove 9013 are respectively formed at two ends of the output shaft of the motor 901, a set of hoop 902 is respectively sleeved at two ends of the output shaft of the motor 901, a ring through hole 9021 and a ring threaded hole 9022 are respectively formed at two ends of the hoop 902, the ring screw 903 passes through the ring through hole 9021 and enters the ring threaded hole 9022, and the T-shaped connecting member 904 suppresses a reaction force of the motor 901 during operation.

A piece sliding groove 9041 is formed in the block structure in the middle of the T-shaped connecting piece 904, a piece fixing groove 9042 is formed in each of the two groups of sheet structures of the T-shaped connecting piece 904, connecting screws 906 are arranged in the piece fixing grooves 9042, the connecting screws 906 on the upper side are screwed into the bed main body 1, the connecting screws 906 on the lower side are screwed into the lower beam 11, the vertical shaft 9011 extends into the piece sliding groove 9041, and the connecting screws 906 penetrate through the T-shaped connecting piece 904 after penetrating through gaskets 905.

The hoop 902 is sleeved on the outer circle part of the output shaft of the motor 901 where the pipe transverse groove 9013 is located, and the output shaft of the motor 901 is connected with the back plate adjusting assembly 7 and the foot plate adjusting assembly 8 through the hoop 902.

Fig. 6 is a schematic structural view of a crank of an intelligent medical electric hospital bed according to an embodiment of the present invention.

As shown in fig. 6, the handle 10 is in a Z-shape, one end of which is a free end and is used as a handle for manual shaking, and the other end of which is provided with a hexagonal head 1001 for being inserted into the hexagonal groove profile of the foot plate adjusting assembly 8 and the driving assembly 9.

Fig. 7 is a schematic view of an external structure of a control box of an intelligent medical electric hospital bed according to an embodiment of the present invention. Fig. 8 is a schematic structural view of the separated state of the control box. Fig. 9 is a schematic diagram of the upper side structure of the control circuit board of the control box. Fig. 10 is a schematic diagram of the structure of the control box.

As shown in fig. 7-10, the control box 12 includes box screw 1201, box cover 1202, toggle switch 1203, speed regulator 1204, control circuit board 1205 and box body 1206, install STM32 series chip sensing component, lithium iron battery, triaxial quartz accelerometer on the circuit board 1205 in the control box 12 to head of a bed servo circuit, waist servo circuit and tailstock servo circuit, lithium iron battery electricity links chip sensing component, triaxial quartz accelerometer and backplate adjusting component 7, footboard adjusting component 8, drive assembly 9 and crank 10 electricity link, backplate adjusting component 7, footboard adjusting component 8, drive assembly 9 parallel connection. The back plate adjustment assembly 7, the foot plate adjustment assembly 8 and the driving assembly 9 may be implemented by conventional adjustment assemblies and mechanical structures of driving assemblies, such as gear-type engagement adjustment assemblies, screw-type adjustment assemblies, etc., and driving assemblies, such as driving motor assemblies, etc. Head of a bed servo circuit, waist servo circuit and tailstock servo circuit correspond head of a bed position respectively, backplate adjustment subassembly and sole adjustment subassembly, triaxial adaptation accelerometer install in on the circuit board 1205, can also install one on head of a bed position, backplate adjustment subassembly and the sole adjustment subassembly separately, when installing respectively in head of a bed position, with head of a bed synchronous motion, when installing at the tailstock, with the tailstock position synchronous motion at sole adjustment subassembly place, can the angle of each position of real-time measurement sick bed and horizontal plane. The three-axis quartz accelerometer is in data connection with the STM32 series chip sensing assembly, a universal data interface is adopted, and the STM32 chip identifies different accelerometers through addressing. In the invention, the STM32 series chip controller is adopted, the brake starting pause and the brake starting pause are not generated in the pushing process, and the sickbed can easily realize various actions of a patient, such as turning over, leg stretching, head raising and the like, by additionally arranging the power assisting device even if the patient is fat or the body of a nursing worker is thin.

In one embodiment of the present invention, a humidity detection system is also installed in the control box 12, and when the patient's stool or urine is out of control or the bed sheets are wet, the humidity detection system will work to send a replacement request.

In an embodiment of the present invention, an image acquisition component and an image processing component are further installed in the control box 12, so that medical staff or family members of the patient can pay attention to the dynamic state of the patient in real time, and when the patient encounters an emergency, the patient can remotely control the patient bed in time.

In one embodiment of the invention, in order to enable the sickbed to move out of the ward door freely, the STM32 series chip controller is connected with a navigation device, and the ward can realize real-time navigation and positioning during moving out of the ward.

In one embodiment of the invention, in order to realize the communication function, a wireless transmitting and receiving device is also connected, so that the real-time synchronization of the control systems of the hospital bed and the monitoring master station can be realized, and the monitoring master station can find the emergency and immediately perform remote operation processing.

In one embodiment of the invention, when the patient needs to lift the head or raise the upper half of the body, the bed head servo circuit works to automatically lift the head of the bed body; the waist servo circuit works to automatically lift the waist part of the bed plate where the back plate adjusting component of the bed body is located; when a patient needs to lift or put down a leg, the bed tail servo circuit works to automatically lift the bed tail part where the foot plate adjusting assembly is located; when the patient needs to rest, the bed body returns to the original state of the sickbed no matter the posture of the current electric sickbed as long as the recovery key is pressed.

In one embodiment of the invention, in order to make the stability and smooth the pause and frustration caused by frequent braking and starting in the moving or pushing process, the STM32 series chip adopts a dual-core control mode for real-time control.

When the intelligent medical electric sickbed is used, after all parts are assembled, when a patient lies on the sickbed, the positions of a backboard 3 and a foot plate 5 are adjusted by rotating a backboard adjusting component 7 and a foot plate adjusting component 8, the specific structure of the intelligent medical electric sickbed can refer to the mechanical structure of the existing sickbed, the output shaft of a motor 901 is connected with the backboard adjusting component 7 and the foot plate adjusting component 8, so that the backboard adjusting component 7 and the foot plate adjusting component 8 are rotated, when other conventional hand-operated sickbeds are modified, the output shaft of the motor 901 is firstly sleeved outside the output shaft for adjustment at the lower side of the output shaft, then a threaded hole corresponding to the position of a connecting screw 906 is formed in the sickbed, the modification can be completed by fixing the connecting screw 906, a crank 1203 can directly operate the backboard adjusting component 7 and the foot plate adjusting component 8, a working chip of a control circuit board 1205 is STM32, a toggle switch can pass through a box cover, this design is favorable to directly changing toggle switch 1203, and toggle switch 1203 is the vulnerable part of frequent stirring, and this design is favorable to reducing the degree of difficulty of control box 12 maintenance, and control circuit board 1205 is used for adjusting the rotational speed of two sets of motors 901. In one embodiment of the invention, the operation of each device can be controlled by a remote control device, and can also be realized by a control panel arranged at the bedside.

The box body 1206 is of a rectangular box-shaped structure, two groups of aviation plugs are arranged on one group of box walls of the control circuit board 1205, a plurality of groups of upright posts with threaded holes formed in the tops are arranged in the box body 1206, the control circuit board 1205 and the speed governor 1204 are positioned above the upright posts, the speed governor 1204 and the control circuit board 1205 pass through holes in the edges of the upright posts through box screws 1201 to enter the upright posts in the box body 1206 to complete fixation, a group of toggle switches 1203 are respectively inserted in the two groups of structures above the control circuit board 1205, interfaces of the toggle switches 1203 and the control circuit board 1205 are designed to be foolproof, a vertical cylindrical adjusting knob is arranged above the speed governor 1204, the box cover 1202 covers the box body 1206, the box cover 1202 passes through holes in the edges of the box screws 1201 to enter the threaded holes in the upper edges of the box body 1206 to be fixed with the, the position of the opening corresponds to the positions of the upper portion of the toggle switch 1203 and the upper portion of the speed governor 1204.

In summary, the present invention has been described in detail with reference to the preferred embodiments, and it will be apparent to those skilled in the art that modifications can be made to the technical solutions described in the foregoing embodiments or equivalent substitutions for some technical features, and any modifications, equivalent substitutions, improvements and the like made without departing from the spirit and the spirit of the present invention shall fall within the protection scope of the present invention, which is defined by the appended claims.