CN112807167A

CN112807167A - Multifunctional nursing bed based on angle control

Info

Publication number: CN112807167A
Application number: CN202110283117.5A
Authority: CN
Inventors: 张少燕; 唐立岷; 杨慧超; 林宏涛; 罗标; 李悦猛; 王涛
Original assignee: 王涛
Current assignee: Zhengren Huikang (Qingdao) Intelligent Technology Co.,Ltd.
Priority date: 2021-03-16
Filing date: 2021-03-16
Publication date: 2021-05-18

Abstract

A multifunctional nursing bed based on angle control belongs to the technical field of medical equipment. Starting from the requirement of the turning-over function, the turning-over of the human body is regarded as approximate dead axle rotation, and the nested combined bed frame and the turning-over mechanism thereof which realize the approximate dead axle turning-over mode of the human body are provided. Adopt the series connection combined mechanism of the crank slider of two symmetrical arrangements and pendulum rod to realize controlling the function of turning on one's side, drive slider is located the middle of two symmetrical arrangement's combined mechanism, the bottom space of multi-functional nursing bed has been utilized effectively, the number of driving motor has been reduced, the crank pendulum rod mechanism has been designed in the bottom of the bed body simultaneously, drive first yoke around self pivot swing upset through first drive assembly, and then realize the upset of upper body board, because install drive bevel gear in the pivot of upper body board, at upper body board pivoted in-process, drive bevel gear drives driven bevel gear rotatory, driven bevel gear drives the swing arm swing and realizes that first curb plate and second curb plate can realize synchronous rotation with the upper body board.

Description

Multifunctional nursing bed based on angle control

Technical Field

The invention relates to the technical field of medical instruments, in particular to a multifunctional nursing bed based on angle control.

Background

The multifunctional nursing bed needs to assist the bedridden people to move frequently and is suitable for more than ninety percent of people, and the angles of the back support, the side turning and the leg bending, the motion tracks of all bed plates and the size parameters meet the requirements of ergonomics. The back mattress can extrude the waist and back of a patient when the back of the existing nursing bed is slowly lifted, the back mattress can pull the waist and back of the patient when the back of the existing nursing bed slowly falls, the patient feels extremely uncomfortable, and the patient can slide to two sides to drop the nursing bed if the two sides of the body of the patient are not lifted by the back mattress when the nursing bed is lifted or falls. Meanwhile, the multifunctional nursing bed is suitable for the elderly with inconvenient movement and the disabled with limb dysfunction. The crowd lacks or even completely loses the autonomous mobility, and the situation that the limbs incline to one side or the limbs are injured by gaps among bed plates possibly occurs in the process of supporting the back, so that the potential safety hazard caused by the gaps among the bed plates, which are generated by meeting the relative movement, is fully considered in the design process of the multifunctional nursing bed.

Disclosure of Invention

The invention aims to solve the defects of the prior art and provides a multifunctional nursing bed based on angle control.

The core technical idea of the invention is as follows: starting from the requirement of the turning-over function, the motion process and the stress condition of the human body during the autonomous turning-over are researched, the human body turning-over is regarded as the approximate dead axle rotation, and the nested combined bed frame and the turning-over mechanism thereof which realize the approximate dead axle turning-over mode of the human body are provided. Adopt the series connection combined mechanism of the crank slider of two symmetrical arrangements and pendulum rod to realize controlling the function of turning on one's side, drive slider is located the middle of two symmetrical arrangement's combined mechanism, the bottom space of multi-functional nursing bed has been utilized effectively, the number of driving motor has been reduced, the crank pendulum rod mechanism has been designed in the bottom of the bed body simultaneously, drive first yoke around self pivot swing upset through first drive assembly, and then realize the upset of upper body board, because install drive bevel gear in the pivot of upper body board, at upper body board pivoted in-process, drive bevel gear drives driven bevel gear rotatory, driven bevel gear drives the swing arm swing and realizes that first curb plate and second curb plate can realize synchronous rotation with the upper body board.

The technical scheme adopted by the invention for solving the technical problems is as follows:

a multifunctional nursing bed based on angle control comprises an upper body plate, a hip plate and a leg plate, wherein a first side plate and a second side plate are arranged on two sides of the upper body plate, a middle outer plate and a middle inner plate are arranged in the middle of the upper body plate, the first side plate and the second side plate are hinged to the head and the tail of the upper body plate through side plate hinges, the middle outer plate is hinged to an outer plate rotating shaft through an outer plate hinge, the outer plate rotating shaft penetrates through the upper body plate, the middle inner plate is arranged on one side of the middle outer plate through an inner plate hinge, the upper body plate and the hip plate are connected through an upper body plate rotating shaft, guide grooves are formed in two sides of the bottom of the upper body plate, upper body plate trundles are arranged in the guide grooves, the upper body plate trundles are arranged on bent arms which are fixed on two sides of a first fork arm, the upper portion of the first fork arm is of a sleeve structure, an optical axis of a cantilever penetrates through the sleeve, the cantilever is, the first connecting rod is arranged on the first driving assembly; the first support is installed at the bottom of the upper body plate, the second support and the third support are installed at the bottom of the hip plate, the first driving assembly is installed on the support cross beam of the second support and the support cross beam of the third support, and the cantilever is provided with the first angle sensor.

The upper body plate is provided with an upper body plate rotating shaft, the upper body plate rotating shaft is provided with a driving bevel gear, the driving bevel gear is meshed with the planetary bevel gear, a main shaft of the planetary bevel gear is provided with a swing arm, a swing arm connecting rod is arranged on the swing arm, the swing arm connecting rod is connected with a side plate support, the rotating shaft of the side plate support is provided with a second angle sensor, and the side plate support is arranged at the bottom of the first side plate and the bottom of the second side plate.

There is the direction channel bottom of middle planking, installation planking truckle in the direction channel, installation planking yoke on the planking truckle, and the planking yoke is installed on the planking hinge, and the planking hinge mount is on last body board crossbeam, and the planking yoke passes through the planking connecting rod to be connected with second drive assembly, and second drive assembly installs on last body board crossbeam, installs fourth angle sensor on the planking hinge.

The bottom of middle inner panel installs the inner panel truckle, and inner panel truckle ann changes on the inner panel yoke, and the inner panel yoke is installed on the inner panel hinge, and the inner panel hinge mount is on last body board crossbeam, and the inner panel yoke passes through the inner panel connecting rod to be connected with third drive assembly, and third drive assembly installs on last body board crossbeam, installs third angle sensor on the inner panel hinge.

The first driving assembly, the second driving assembly and the third driving assembly are linear motor driving assemblies, the linear motor comprises a motor stator and a motor rotor, the motor stator is a permanent magnet array, the motor rotor is composed of an iron core and a coil, the iron core and the coil are formed by silicon steel sheets in a laminated mode, the motor rotor is installed on a fixing plate, sliding blocks are installed on two sides of the fixing plate, and the sliding blocks are installed on guide rails.

Compared with the prior art, the multifunctional nursing bed based on angle control has the beneficial effects that:

(1) the multifunctional nursing bed designed by the invention has the functions of supporting, turning over and protecting the back, each group of motion systems is provided with a corresponding sensor, the rotation angle between the motions is detected in real time, the detection result is fed back to the control system, and the control system can adjust the speed and the direction of a motor in a motion assembly in real time after receiving an angle feedback signal, so that the mechanism has the characteristics of stable motion, safety, reliability, simple structure and convenience in control.

(2) The invention combines the rotary back support of the upper body plate and the turnover protection actions of the left and right side plates through the bevel gear transmission and the swing rod mechanism, realizes the linkage of the two mechanisms, does not use a power system for driving the turnover protection of the side plates, and the bedridden person is always positioned in the V-shaped space formed by the middle bed plate and the upper body side plate in the turnover process in a fixed-axis rotation mode, and the middle bed plate and the left and right side plates of the upper body have good supporting function for the human body, thereby avoiding the relative sliding between the back of the human body and the middle bed plate during the turnover and improving the turnover comfort.

Drawings

FIG. 1 is a front view of the structure of the present invention;

FIG. 2 is a cross-sectional view of structure A-A of the present invention;

FIG. 3 is a cross-sectional view of structure B-B of the present invention;

FIG. 4 is a top plan view of the structural upper body panel of the present invention;

FIG. 5 is an enlarged view D of a portion of the structure of the present invention;

FIG. 6 is an enlarged view of a portion of the structure of the present invention C;

1. upper body panel, 2, hip panel, 3, leg panel, 4, first side panel, 401, side panel hinge, 5, second side panel, 6, outer panel hinge, 7, middle outer panel, 701, outer panel hinge, 8, middle inner panel, 801, inner panel hinge, 9, first bracket, 10, second bracket, 11, third bracket, 12, first drive component, 13, second drive component, 14, third drive component, 15, first link, 16, first yoke, 17, crank, 181, upper body panel caster, 182, outer panel caster, 183, inner panel caster, 19, cantilever, 20, upper body panel pivot, 21, drive bevel gear, 22, planetary bevel gear, 23, swing arm, 24, swing arm link, 25, side panel bracket, 26, side panel caster, 27, side panel pivot, 28, outer panel yoke, 29, inner panel yoke, 30, inner panel hinge, 31, outer panel hinge, 32. outer plate connecting rod, 33, inner plate connecting rod, 34, motor stator, 35, motor mover, 36, guide rail, 37, slider, 38, fixed plate, 39, support caster, 40, support crossbeam, 41, upper body plate crossbeam, 42, first angle sensor, 43, second angle sensor, 44, third angle sensor, 45, fourth angle sensor.

Detailed Description

The following detailed description of embodiments of the invention refers to the accompanying drawings.

A multifunctional nursing bed based on angle control comprises an upper body plate 1, a hip plate 2 and leg plates 3, wherein a first side plate 4 and a second side plate 5 are arranged on two sides of the upper body plate 1, a middle outer plate 7 and a middle inner plate 8 are arranged in the middle of the upper body plate 1, the first side plate 4 and the second side plate 5 are hinged to the head and the tail of the upper body plate 1 through side plate hinges 401, the middle outer plate 7 is hinged to an outer plate rotating shaft 6 through an outer plate hinge 701, the outer plate rotating shaft 6 penetrates through the upper body plate 1, the middle inner plate 8 is arranged on one side of the middle outer plate 7 through an inner plate 801 hinge, the upper body plate 1 is connected with the hip plate 2 through an upper body plate rotating shaft 20, guide grooves are formed in two sides of the bottom of the upper body plate 1, upper body plate casters 18 are arranged in the guide grooves, the upper body plate casters 18 are arranged on curved arms 17, the curved arms 17 are fixed on two sides of a first fork arm 16, the upper portion, the suspension 19 is a rectangular frame structure, one end of the frame is welded on the second bracket 10, the bottom of the first fork arm 16 is provided with a first connecting rod 15, and the first connecting rod 15 is arranged on the first driving component 12; the first bracket 9 is arranged at the bottom of the upper body plate 1, the second bracket 10 and the third bracket 11 are arranged at the bottom of the hip plate 2, the first driving assembly 12 is arranged on a bracket cross beam 40 of the second bracket 10 and the third bracket 11, and the first angle sensor 42 is arranged on the suspension bracket 19.

As a first embodiment of the invention, the first yoke 16 is a frame structure, a hollow sleeve is arranged at the upper end of the frame, a rotating shaft on the suspension 19 passes through the sleeve, the two sides of the first yoke 16 are welded with the crank arms 17, and the first yoke 16 can drive the crank arms 17 to swing around the rotating shaft on the suspension 19 under the condition that the first connecting rod 15 is not connected.

An upper body plate rotating shaft 20 is installed on the upper body plate 1, a driving bevel gear 21 is installed on the upper body plate rotating shaft 20, the driving bevel gear 21 is meshed with a planetary bevel gear 22, a swing arm 23 is installed on a main shaft of the planetary bevel gear 22, a swing arm connecting rod 24 is installed on the swing arm 23, the swing arm connecting rod 24 is connected with a side plate support 25, a second angle sensor 43 is installed on a rotating shaft of the side plate support 25, and the side plate support 25 is installed at the bottoms of a first side plate 4 and a second side plate 5 in a rotating mode.

As a first embodiment of the present invention, the angular velocity of the upper body side plates is increased and then decreased in the whole process of supporting the back, which is in accordance with the condition that the angular velocities of the first side plate 4 and the second side plate 5 of the upper body side plates are gradually increased to play a role of protection in the first half stroke of the back supporting movement, and the angular velocities of the two upper body side plates are gradually decreased in the second half stroke of the back supporting process to avoid that the turning-up angle of the two upper body side plates is too large to bring a sense of oppression to a patient.

As a first embodiment of the present invention, in order to prevent a bedridden person from inclining to both sides due to losing the center of gravity when the back support frame is lifted, the supporting angle of the side protection bed plate should be not less than 60 ° when the maximum back support angle reaches 85 °, and the rotation axes of the first side plate 4 and the second side plate 5 form a 90 ° angle in space when the middle back support frame is turned up, so that the back support protection function is realized by using a combination mechanism of a plane link mechanism and a bevel gear planetary gear mechanism.

There is the guide channel way bottom of middle planking 7, installation planking truckle 182 in the guide channel way, installs planking yoke 28 on the planking truckle 182, and planking yoke 28 is installed on planking hinge 31, and planking hinge 31 is installed on last body board crossbeam 41, and planking yoke 28 passes through planking connecting rod 32 to be connected with second drive assembly 13, and second drive assembly 13 is installed on last body board crossbeam 41, installs fourth angle sensor 45 on the planking hinge 31.

As a first embodiment of the invention, when the user needs to turn over to the left, the middle outer frame is turned over to the left, and the inner frame is driven to turn over to the left; when the patient turns over to the right side, the middle inner frame turns over to the right side, and the middle outer frame is static.

The bottom of the middle inner plate 8 is provided with an inner plate caster 183, the inner plate caster 183 is arranged on an inner plate yoke 29, the inner plate yoke 29 is arranged on an inner plate hinge 30, the inner plate hinge 30 is arranged on an upper body plate beam 41, the inner plate yoke 29 is connected with the third driving assembly 14 through an inner plate connecting rod 33, the third driving assembly 14 is arranged on the upper body plate beam 41, and the inner plate hinge 30 is provided with a third angle sensor 44.

The first driving assembly 12, the second driving assembly 13 and the third driving assembly 14 are linear motor driving assemblies, each linear motor comprises a motor stator 34 and a motor rotor 35, the motor stator 34 is a permanent magnet array, the motor rotor 35 is composed of an iron core and a coil which are formed by laminating silicon steel sheets, the motor rotor 35 is installed on a fixing plate 38, sliding blocks 37 are installed on two sides of the fixing plate 38, and the sliding blocks 37 are installed on guide rails 36.

As a first embodiment of the present invention, after three-phase symmetrical sinusoidal currents are applied to three-phase windings of a stator of a linear motor, an air-gap magnetic field is generated, and when the three-phase currents change with time, the air-gap magnetic field moves linearly according to A, B, C phase sequence, which is called a traveling wave magnetic field, and an excitation magnetic field of a permanent magnet interacts with the traveling wave magnetic field to generate electromagnetic thrust, and under the thrust, because the stator is fixed, a mover moves linearly in the opposite direction of the traveling wave magnetic field.

In summary, the present invention is not limited to the above-mentioned embodiments, and those skilled in the art can propose other embodiments within the teaching of the present invention, but these embodiments are included in the scope of the present invention.

Claims

1. The multifunctional nursing bed based on angle control is characterized by comprising an upper body plate (1), a hip plate (2) and leg plates (3), wherein a first side plate (4) and a second side plate (5) are arranged on two sides of the upper body plate (1), a middle outer plate (7) and a middle inner plate (8) are arranged in the middle of the upper body plate (1), the first side plate (4) and the second side plate (5) are hinged to the head and the tail of the upper body plate (1) through side plate hinges (401), the middle outer plate (7) is hinged to an outer plate rotating shaft (6) through an outer plate hinge (701), the outer plate rotating shaft (6) penetrates through the upper body plate (1), the middle inner plate (8) is installed on one side of the middle outer plate (7) through an inner plate hinge (801), and the upper body plate (1) and the hip plate (2) are connected through an upper body plate rotating shaft (20), guide grooves are formed in two sides of the bottom of the upper body plate (1), upper body plate caster wheels (18) are installed in the guide grooves, the upper body plate caster wheels (18) are installed on a bent arm (17), the bent arm (17) is fixed on two sides of a first fork arm (16), the upper portion of the first fork arm (16) is of a sleeve structure, an optical axis of a cantilever (19) penetrates through the sleeve, the cantilever (19) is of a rectangular frame structure, one end of the frame is welded on a second support (10), a first connecting rod (15) is installed at the bottom of the first fork arm (16), and the first connecting rod (15) is installed on a first driving assembly (12); the bottom of the upper body plate (1) is provided with a first support (9), the bottom of the hip plate (2) is provided with a second support (10) and a third support (11), the first driving assembly (12) is arranged on support cross beams (40) of the second support (10) and the third support (11), and the cantilever (19) is provided with a first angle sensor (42).

2. The multifunctional nursing bed based on angle control of claim 1, wherein the upper body plate (1) is provided with an upper body plate rotating shaft (20), the upper body plate rotating shaft (20) is provided with a driving bevel gear (21), the driving bevel gear (21) is meshed with a planetary bevel gear (22), a main shaft of the planetary bevel gear (22) is provided with a swing arm (23), the swing arm (23) is provided with a swing arm connecting rod (24), the swing arm connecting rod (24) is connected with a side plate bracket (25), the rotating shaft of the side plate bracket (25) is provided with a second angle sensor (43), and the side plate bracket (25) is rotatably arranged at the bottom of the first side plate (4) and the second side plate (5).

3. The multifunctional nursing bed based on angle control of claim 1, wherein the bottom of the middle outer plate (7) has a guide channel, an outer plate caster (182) is installed in the guide channel, an outer plate yoke (28) is installed on the outer plate caster (182), the outer plate yoke (28) is installed on an outer plate hinge (31), the outer plate hinge (31) is installed on the upper body plate cross beam (41), the outer plate yoke (28) is connected with a second driving assembly (13) through an outer plate connecting rod (32), the second driving assembly (13) is installed on the upper body plate cross beam (41), and a fourth angle sensor (45) is installed on the outer plate hinge (31).

4. The multi-functional nursing bed based on angle control according to claim 1, characterized in that the bottom of the middle inner plate (8) is installed with an inner plate caster (183), the inner plate caster (183) is installed on an inner plate yoke (29), the inner plate yoke (29) is installed on an inner plate hinge (30), the inner plate hinge (30) is installed on the upper body plate beam (41), the inner plate yoke (29) is connected with a third driving assembly (14) through an inner plate connecting rod (33), the third driving assembly (14) is installed on the upper body plate beam (41), and the inner plate hinge (30) is installed with a third angle sensor (44).

5. The multifunctional nursing bed based on angle control of claim 1, wherein the first driving assembly (12), the second driving assembly (13) and the third driving assembly (14) are linear motor driving assemblies, the linear motor comprises two parts, namely a motor stator (34) and a motor rotor (35), the motor stator (34) is a permanent magnet array, the motor rotor (35) is composed of iron cores and coils formed by laminating silicon steel sheets, the motor rotor (35) is installed on a fixed plate (38), sliding blocks (37) are installed on two sides of the fixed plate (38), and the sliding blocks (37) are installed on guide rails (36).