CN211049939U

CN211049939U - Nursing bed with multiple body positions

Info

Publication number: CN211049939U
Application number: CN201921418606.1U
Authority: CN
Inventors: 陆泽鸿; 简金元; 林青连; 付德群
Original assignee: Guangdong Kareway Medical Technology Co ltd
Current assignee: Guangdong Kareway Medical Technology Co ltd
Priority date: 2019-08-28
Filing date: 2019-08-28
Publication date: 2020-07-21
Anticipated expiration: 2029-08-28

Abstract

The utility model discloses a nursing bed of many somatic positions, comprising a bedstead, the below of bedstead is equipped with the bed frame, be equipped with back board, buttock board and shank board in proper order backward in the past on the bedstead, the buttock board is fixed to be located on the bedstead, the front side of buttock board with the back board is articulated, the shank board divide into mutual articulated thigh board and shank board, the rear side of buttock board with the thigh board is articulated, including the lift back mechanism, the leg bending mechanism, first elevating system and the second elevating system of mutually independent control lift, lift back mechanism with the leg bending mechanism is used for user's back and shank respectively to lift, and first elevating system can realize the slope of whole bedstead, and the second elevating system passes through the vertical lift of the whole bedstead of pedal mechanism drive. The utility model provides a four elevating system relatively independent and can make up the use wantonly, satisfy the user to the demand of the different positions of nursing bed, convenient to use.

Description

Nursing bed with multiple body positions

Technical Field

The utility model relates to the field of medical equipment, especially a nursing bed of many positions.

Background

At present, a nursing bed is used as an important medical instrument, in order to meet different body positions of a user, various lifting mechanisms are arranged on the nursing bed to be combined for use to realize back lifting, leg bending, integral lifting and inclination, the head-foot height type first-aid body position can be realized, and meanwhile, the body posture of the patient can be adjusted timely.

At present, motor-driven and hand-operated lifting mechanisms are mostly adopted, the motor is used as a class of electronic devices, certain potential safety hazards exist, sufficient power sources can not be guaranteed in all emergency environments, and if the motor does not have the power source, patients can miss the optimal time for emergency treatment; the hand-operated type transmission efficiency is low, the lifting time is long, the rescue time of a patient can be influenced, the patient lying in the bed cannot be controlled by himself or herself conveniently, meanwhile, the existing combination of the back lifting mechanism, the leg bending mechanism, the integral lifting mechanism and the inclined lifting mechanism has certain limitation, arbitrary combination and excellent maneuverability cannot be met at the same time, and the nursing bed cannot completely meet the requirements of people on various body position changes in daily nursing activities. In view of this, a combined lifting mechanism with good operability is desired by those in the field, which is not only convenient for the doctor to operate and control, but also beneficial for the patient to control by himself, and meanwhile, the combined lifting mechanism is rapid in lifting, good in adaptability and capable of realizing multiple body position changes.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is: provides a multi-position nursing bed with good maneuverability.

The utility model provides a solution of its technical problem is:

a nursing bed with multiple body positions comprises a bed frame, wherein a base frame is arranged below the bed frame, a back plate, a hip plate and a leg plate are sequentially arranged on the bed frame from front to back, the hip plate is fixedly arranged on the bed frame, the front side of the hip plate is hinged to the back plate, the leg plate is divided into a thigh plate and a shank plate which are hinged to each other, the back side of the hip plate is hinged to the shank plate, a back lifting mechanism capable of driving the back plate to lift and a leg bending mechanism capable of driving the thigh plate or the shank plate to lift are arranged on the bed frame, a first movable handle capable of driving the back lifting mechanism is arranged on the back plate, a second movable handle capable of driving the leg bending mechanism is arranged on the leg plate, a first lifting assembly and a second lifting assembly are arranged between the bed frame and the base frame, and the first lifting assembly and the second lifting assembly are respectively arranged on the front side of the bed frame, The rear side, first lifting unit with the bedstead is articulated, second lifting unit is including the support piece of locating the top, support piece with be equipped with first elevating system between the bedstead, first elevating system includes third movable handle, third movable handle locates the rear side of bedstead, be equipped with second elevating system on the bed frame, second elevating system can drive first lifting unit with second lifting unit goes up and down in step, be equipped with on the bed frame and drive second elevating system's pedal mechanism.

As a further improvement of the above technical scheme, the leg bending mechanism includes an air spring, a piston rod end of the air spring is hinged to the thigh plate or the bottom of the shank plate, a tail end of the air spring is hinged to the bottom of the bed frame, the air spring is obliquely arranged, a push rod for controlling the opening and closing of an internal valve of the air spring is arranged at the piston rod end of the air spring, a rotating sheet for pushing the push rod is arranged below the shank plate in a rotating mode, the rotating sheet is arranged between the push rod and the shank plate, a first traction rope is arranged between the second movable handle and the rotating sheet, one end of the first traction rope is connected with the rotating sheet, and the other end of the first traction rope is connected with the second movable handle.

As a further improvement of the above technical scheme, the first lifting mechanism comprises a sleeve, a lifting pipe and a pull pin, the sleeve is vertically arranged on the support member, a through hole is formed in the pipe wall of the sleeve, the lifting pipe is sleeved in the sleeve, the upper end of the lifting pipe is fixedly connected with the bottom of the bedstead, a plurality of limiting holes are formed in the pipe wall of the lifting pipe at intervals, the through hole is arranged on the same side of the limiting holes, one end of the pull pin penetrates through the through hole and is matched with the limiting holes, the other end of the pull pin is connected with a second traction rope, the second traction rope is connected with a third movable handle, and the second traction rope can pull the pull pin to enter and exit the limiting holes.

As a further improvement of the above technical solution, the sleeve is provided with an extension tube corresponding to the through hole, the extension tube is communicated with the through hole, the pull pin is a spring pin, and one end of the pull pin sequentially penetrates through the extension tube, the through hole and the limiting hole.

As a further improvement of the above technical solution, a first link assembly is disposed between the supporting member and the bed frame, the first link assembly is abutted to the supporting member, the first link assembly includes a longitudinal rod and a transverse rod hinged to each other, the upper end of the longitudinal rod is hinged to the bed frame, the transverse rod is disposed along the length direction of the bed frame, a fourth movable handle is disposed at the rear side of the bed frame, and the fourth movable handle is hinged to the right end of the transverse rod.

As a further improvement of the above technical solution, the second lifting mechanism includes a hydraulic cylinder, the hydraulic cylinder is disposed on the base frame, two rotating shafts are disposed between the left side and the right side of the base frame, the two rotating shafts are respectively disposed at the front side and the rear side of the base frame, the first lifting assembly and the second lifting assembly both include lifting members, the upper end of the lifting member of the first lifting assembly is hinged to the bed frame, the upper end of the lifting member of the second lifting assembly is hinged to the lower end of the supporting member, the lower ends of the two lifting members are respectively hinged to the rotating shafts disposed at the same side, a second connecting rod assembly is disposed between the two rotating shafts, the second connecting rod assembly is disposed below the base frame, the second connecting rod assembly, the two rotating shafts and the base frame form a parallelogram mechanism, one of the two rotating shafts is provided with an ear plate, the piston rod end of the hydraulic cylinder is hinged to the lug plate, the tail end of the hydraulic cylinder is connected with the pedal mechanism through a third connecting rod assembly, the pedal mechanism comprises a pedal shaft, the pedal shaft is arranged on the base frame in the left-right direction, and pedal assemblies are arranged at two ends of the pedal shaft respectively.

As a further improvement of the above technical solution, the pedal assembly includes a first pedal and a second pedal, the first pedal is stepped to cause the first lifting assembly and the second lifting assembly to ascend synchronously, the second pedal is stepped to cause the first lifting assembly and the second lifting assembly to descend synchronously, and the first pedal and the second pedal are disposed in front of and behind each other.

As a further improvement of the above technical solution, the two rotating shafts and the left and right ends of the pedal shaft extend out of the left and right sides of the base frame, the pedal assemblies are respectively disposed on the outer extending ends of the left and right sides of the pedal shaft, and the first lifting assembly and the second lifting assembly are respectively symmetrically disposed on the outer extending ends of the left and right sides of the rotating shafts.

As a further improvement of the above technical solution, the first pedal is connected to the second pedal through a bent rod, and the first pedal is disposed above the second pedal.

As a further improvement of the technical scheme, the first movable handles are symmetrically arranged on the left side and the right side of the back plate, and the second movable handles are symmetrically arranged on the left side and the right side of the leg plate.

The utility model has the advantages that: the utility model provides a nursing bed of many positions, including the lift back of the body mechanism that mutual independence control goes up and down, bend leg mechanism, first elevating system and second elevating system, lift back of the body mechanism and bend leg mechanism and be used for lifting up and down of back and shank respectively, first movable handle and second movable handle can the person of facilitating the use when lying the state or standing the state, all can drive and lift back of the body mechanism and bend leg mechanism, and it is good to control, and first elevating system can make the slope of whole bedstead, and second elevating system passes through the synchronous lift of the first elevating component of pedal mechanism drive and second elevating component to the vertical lift of the whole bedstead of control, the utility model provides a four mechanisms can make up the cooperation wantonly and go up and down, satisfy the demand of user to the different positions of nursing bed, convenient to use.

Drawings

In order to more clearly illustrate the technical solution in the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly described below. It is clear that the described figures represent only some embodiments of the invention, not all embodiments, and that a person skilled in the art can also derive other designs and figures from these figures without inventive effort.

Fig. 1 is a schematic perspective view of an embodiment of the present invention;

fig. 2 is a schematic top view of an embodiment of the present invention.

Fig. 3 is a schematic rear view structure diagram of the embodiment of the present invention.

Detailed Description

The conception, the specific structure, and the technical effects produced by the present invention will be clearly and completely described below in conjunction with the embodiments and the accompanying drawings to fully understand the objects, the features, and the effects of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and other embodiments obtained by those skilled in the art without inventive labor based on the embodiments of the present invention all belong to the protection scope of the present invention. In addition, all the connection relations mentioned herein do not mean that the components are directly connected, but mean that a better connection structure can be formed by adding or reducing connection accessories according to the specific implementation situation. The utility model provides an each technical feature can the interactive combination under the prerequisite of conflict each other.

With reference to fig. 1, 2 and 3, this is an embodiment of the invention, in particular:

a nursing bed with multiple body positions comprises a bed frame 1, a bed frame 2 is arranged below the bed frame 1, the bed frame 2 can be a wheel frame, a back plate 3, a hip plate 4 and leg plates are sequentially arranged on the bed frame 1 from front to back, the hip plate 4 is fixedly arranged on the bed frame 1, the front side of the hip plate 4 is hinged with the back plate 3, the leg plates are divided into a thigh plate 5 and a shank plate 6 which are mutually hinged, the rear side of the hip plate 4 is hinged with the thigh plate 5, a back lifting mechanism capable of driving the back plate 3 to lift and a leg bending mechanism capable of driving the thigh plate 5 or the shank plate 6 to lift are arranged on the bed frame 1, a first movable handle 7 capable of driving the back lifting mechanism is arranged on the back plate 3, a second movable handle 8 capable of driving the leg bending mechanism is arranged on the leg plates, a first lifting assembly and a second lifting assembly are arranged between the bed frame 1 and the bed frame 2, and the first lifting assembly and the second lifting assembly are, The rear side, first elevating system is articulated with bedstead 1, the second elevating system is including the support piece 9 of locating the top, be equipped with first elevating system between support piece 9 and the bedstead 1, first elevating system includes third movable handle 10, the rear side of bedstead 1 is located to third movable handle 10, but the rear side of first elevating system manual lift bedstead 1 is equipped with second elevating system on the bed frame 2, second elevating system can drive first elevating system and the synchronous lift of second elevating system, be equipped with the pedal mechanism that can drive second elevating system on the bed frame 2. This embodiment is through setting up the back of the body mechanism of lifting, the leg bending mechanism, first elevating system and the second elevating system that mutually independent control goes up and down, lift the back of the body mechanism with the leg bending mechanism is used for user's back and shank to lift respectively, first movable handle 7 and second movable handle 8 can be convenient for the user to be in the state of lying or the state of standing can all drive and lift back of the body mechanism and the leg bending mechanism, first elevating system can the rear side of manual lift bedstead 1, realize the slope of whole bedstead 1, and manual control can practice thrift use cost, second elevating system passes through the synchronous lift of the first lifting unit of pedal mechanism drive and second lifting unit, thereby control the vertical lift of whole bedstead 1, these four mechanisms are relatively independent and can make up the use wantonly, satisfy the demand of user to the different positions of nursing bed, high durability and convenient use.

Further as a preferred embodiment, the leg bending mechanism comprises an air spring 11, the piston rod end of the air spring 11 is hinged with the bottom of the thigh plate 5 or the shank plate, the tail end of the air spring 11 is hinged with the bedstead 1, the air spring 11 is arranged obliquely from top to bottom, the piston rod end of the air spring 11 is hinged with the bottom of the leg plate through a connector, the connector is provided with a cavity, the piston rod end of the air spring 11 is provided with a push rod for controlling the opening and closing of an internal valve thereof, a rotating sheet for pushing the push rod is rotatably arranged below the leg plate, the push rod and the rotating sheet are both arranged in the connector, the rotating sheet is hinged in the connector through a hinge shaft, one end of the rotating sheet extending out of the connector is connected with a first traction rope 12, the first traction rope 12 can pull the rotating sheet to rotate so as to push the push rod and make the air spring 11 stretch, doctors and patients control the, the second movable handle 8 is rotationally and symmetrically arranged on the left side surface and the right side surface of the bedstead 1 through a rotating shaft, the axial lead of the rotating shaft extends along the width direction of the bedstead 1, the first pull ropes 12 are connected on the two first movable handles 7 which are symmetrically arranged, the two first pull ropes 12 are combined into one when being connected with a rotating sheet, the synchronous control of the first movable handles 7 on the left side and the right side is convenient to realize, the air spring 11 can be stretched and contracted by rotating the first movable handle 7 on any side, the operation is convenient, no external electric drive is needed, compared with the motor drive, the stretching reaction time of the air spring 11 is extremely short, the leg bending action is realized by rapidly and relatively folding the leg bed board, the multi-angle adjustment can be realized, in order to avoid the collision between the leg board and the bedstead 1 when the leg board goes up and down, a cushion pad is arranged between the leg board, for buffering the energy of the leg board lifting, the buffering pad can be fixed on the upper surface of the bed frame 1 or the lower surface of the leg board. The air spring 11 in this embodiment is a self-locking air spring 11, the bottom of the bed frame 1 is provided with an installation seat for the air spring 11, the tail end of the air spring 11 of the leg bending mechanism is hinged to the rear end of the installation seat, the back lifting mechanism also adopts the air spring 11 to realize the lifting of the back plate 3, the tail end of the air spring 11 of the back lifting mechanism is hinged to the front end of the installation seat, the first movable handle 7 can control the expansion and contraction of the air spring 11 of the back lifting mechanism, and the back lifting mechanism and the leg bending mechanism both adopt the air spring 11 and can be lifted quickly.

Further as a preferred embodiment, the first lifting mechanism comprises a sleeve 13, an elevator tube 14 and a pull pin 15, the outer wall of the sleeve 13 is vertically fixed on the front side or the side surface of the support 9, the wall of the sleeve 13 is provided with a through hole, the elevator tube 14 is sleeved in the sleeve 13, the elevator tube 14 is vertically arranged, the length of the elevator tube 14 is longer than that of the sleeve 13, the upper end of the elevator tube 14 is fixedly connected with the bottom of the bed frame 1, the wall of the elevator tube 14 is provided with a plurality of limiting holes at intervals up and down, the through holes are arranged on the same side as the limiting holes and are correspondingly matched with the limiting holes, the pull pin 15 is inserted into the corresponding limiting holes, the pull pin 15 is a spring pin, the sleeve 13 is provided with an extension tube corresponding to the through hole, the extension tube extends horizontally and is communicated with the through hole, one end of the pull pin 15 sequentially passes through the extension tube, the through hole is matched with the limiting holes, the other end of the pull pin 15 is connected with a third movable handle, third movable handle 10 can rotate from top to bottom, thereby pulling second haulage rope 16 and pulling the blind pin 15 and advance out spacing hole, in use, utilize third movable handle 10 to pull second haulage rope 16, thereby blind pin 15 withdraws from one of them spacing hole, lift bedstead 1 to required height on simultaneously, loosen third movable handle 10, blind pin 15 inserts in another spacing hole, bedstead 1 realizes the tilt-up, can realize many inclination's regulation through setting up a plurality of spacing holes, each spacing hole corresponds an inclination promptly, can incline fast and adjust, be convenient for in time first aid, and simultaneously, compare in motor drive's tilt mechanism, manufacturing cost and use cost have been practiced thrift to manual's tilt mechanism.

Because the bed frame 1 is in a normal parallel state, under the long-time support, the rear side of the bed frame 1 is fixedly supported and supported only by the clamping of the pull pin 15 in the through hole and the limit position, in this embodiment, a first link assembly is disposed between the supporting member 9 and the bed frame 1 for supporting the rear side of the bed frame 1, the first link assembly is abutted against the supporting member 9, the first link assembly includes a longitudinal bar and a transverse bar hinged to each other, the upper end of the longitudinal bar is hinged to the bed frame 1, the transverse bar is disposed along the length direction of the bed frame 1, a fourth movable handle 17 is disposed at the rear side of the bed frame 1, the fourth movable handle 17 is hinged to the right end of the transverse bar, the first link assembly is used for assisting in supporting the bed frame 1, the pull pin 15, the lifting pipe 14 and the sleeve 13 are all protected, when the bedstead 1 needs to be changed from a horizontal state to a head-down and foot-high state, the fourth movable handle 17 is pulled upwards, and the first connecting rod component is separated from the supporting piece 9.

Further as a preferred embodiment, the second lifting mechanism comprises a hydraulic cylinder 18, the hydraulic cylinder 18 is disposed on the base frame 2, two rotating shafts 19 are disposed between the left side and the right side of the base frame 2, the two rotating shafts 19 are disposed at the front side and the rear side of the base frame 2, the first lifting assembly and the second lifting assembly each comprise a lifting member 20, the upper end of the lifting member 20 of the first lifting assembly is hinged to the bed frame 1, the upper end of the lifting member 20 of the second lifting assembly is hinged to the lower end of the supporting member 9, the lower ends of the two lifts are hinged to the rotating shafts 19 disposed at the same side, a second connecting rod assembly 21 is disposed between the two rotating shafts 19, the second connecting rod assembly 21 is disposed below the base frame 2, the second connecting rod assembly 21 and the two rotating shafts 19 form a parallelogram mechanism with the base frame 2, an ear plate is disposed on one of the two rotating shafts 19, and a piston, the tail end of the hydraulic cylinder 18 is connected with a pedal mechanism through a third connecting rod assembly 22, the pedal mechanism comprises a pedal shaft 23, the pedal shaft 23 is arranged on the bed frame 2 along the left and right direction, pedal assemblies are respectively arranged at two ends of the pedal shaft 23, the piston rod end of the hydraulic cylinder 18 is driven to stretch by the pedal mechanism, when the bed frame is used, the integral lifting of the bed frame 1 can be realized by stepping on the pedal assemblies, the adjustment of different heights can be met, the operation is convenient, the pedal assemblies comprise a first pedal 24 and a second pedal 25, the first pedal 24 is used for controlling the first lifting assembly and the second lifting assembly to synchronously lift, the second pedal 25 is used for controlling the first lifting assembly and the second lifting assembly to synchronously lift, the first pedal 24 and the second pedal 25 are arranged in front and back, when the bed frame 1 needs to lift, the first pedal 24 is continuously stepped on, and for quick lifting, a bent rod is connected between the first pedal, the top of second footboard 25 is located to first footboard 24, and first footboard 24 has more trampable spaces, and the left and right both sides of bed frame 2 are all extended with the left and right two sections of footboard axle 23 to two rotation axes 19, and the footboard subassembly is located respectively on the outer extension end on the left and right side of footboard axle 23, and first lifting unit and second lifting unit symmetry are located respectively on the outer extension end on the left and right side of the rotation axis 19 of homonymy, and the structure that the symmetry set up makes whole elevation structure firm.

The first traction rope 12 and the second traction rope 16 in the embodiment are steel wire ropes, the first movable handle 7 is symmetrically arranged on the left side and the right side of the back plate 3, the second movable handle 8 is symmetrically arranged on the left side and the right side of the leg plate, and auxiliary handles are correspondingly arranged above the first movable handle 7, the second movable handle 8 and the third movable handle and are arranged on the bedstead 1, so that the operation is convenient.

While the preferred embodiments of the present invention have been described in detail, it will be understood by those skilled in the art that the foregoing and various other changes, omissions and deviations in the form and detail thereof may be made without departing from the scope of this invention.

Claims

1. A multi-position nursing bed, which is characterized in that: comprises a bedstead (1), a base frame (2) is arranged below the bedstead (1), a back plate (3), a hip plate (4) and leg plates are sequentially arranged on the bedstead (1) from front to back, the hip plate (4) is fixedly arranged on the bedstead (1), the front side of the hip plate (4) is hinged with the back plate (3), the leg plates are divided into a thigh plate (5) and a shank plate (6) which are hinged with each other, the rear side of the hip plate (4) is hinged with the shank plate (5), a back lifting mechanism capable of driving the back plate (3) to lift and a leg bending mechanism capable of driving the thigh plate (5) or the shank plate (6) to lift are arranged on the bedstead (1), a first movable handle (7) capable of driving the back lifting mechanism is arranged on the back plate (3), and a second movable handle (8) capable of driving the leg bending mechanism is arranged on the leg plate, a first lifting component and a second lifting component are arranged between the bed frame (1) and the base frame (2), the first lifting component and the second lifting component are respectively arranged at the front side and the rear side of the bedstead (1), the first lifting component is hinged with the bedstead (1), the second lifting component comprises a supporting piece (9) arranged above, a first lifting mechanism is arranged between the supporting piece (9) and the bedstead (1), the first lifting mechanism comprises a third movable handle (10), the third movable handle (10) is arranged at the rear side of the bedstead (1), the base frame (2) is provided with a second lifting mechanism which can drive the first lifting component and the second lifting component to synchronously lift, and a pedal mechanism capable of driving the second lifting mechanism is arranged on the base frame (2).

2. A multi-position care bed according to claim 1, wherein: leg bending mechanism includes air spring (11), the tailpiece of the piston rod of air spring (11) with thigh board (5) or the bottom of shank board is articulated, the tail end of air spring (11) with the bottom of bedstead (1) is articulated, air spring (11) slope sets up, the tailpiece of the piston rod of air spring (11) is equipped with the ejector pin of its inside valve switching of control, the below of shank board is rotated and is equipped with the promotion the rotor of ejector pin, the rotor is located the ejector pin with between the shank board, second movable handle (8) with be equipped with first haulage rope (12) between the rotor, the one end of first haulage rope (12) with the rotor is connected, the other end of first haulage rope (12) with second movable handle (8) are connected.

3. A multi-position care bed according to claim 1, wherein: first elevating system includes sleeve pipe (13), fall way (14) and draws round pin (15), sleeve pipe (13) is vertical to be located support piece (9) are last, the pipe wall of sleeve pipe (13) is equipped with the through-hole, fall way (14) cover is located in sleeve pipe (13), the upper end of fall way (14) with the bottom rigid coupling of bedstead (1), the pipe wall of fall way (14) is equipped with a plurality of spacing holes from top to bottom at the interval, the through-hole with spacing hole homonymy sets up, the one end of drawing round pin (15) is passed the through-hole with spacing hole cooperatees, the other end of drawing round pin (15) is connected with second haulage rope (16), second haulage rope (16) with third movable handle (10) are connected, second haulage rope (16) can pull draw round pin (15) business turn over spacing hole.

4. A multi-position care bed according to claim 3, wherein: the sleeve (13) is provided with an extension pipe corresponding to the through hole, the extension pipe is communicated with the through hole, the pull pin (15) is a spring pin, and one end of the pull pin (15) sequentially penetrates through the extension pipe, the through hole and the limiting hole.

5. A multi-position care bed according to claim 3, wherein: the bed comprises a bed frame (1), and is characterized in that a first connecting rod assembly is arranged between the support member (9) and the bed frame (1), the first connecting rod assembly is abutted to the support member (9), the first connecting rod assembly comprises a longitudinal rod and a transverse rod which are hinged to each other, the upper end of the longitudinal rod is hinged to the bed frame (1), the transverse rod is arranged along the length direction of the bed frame (1), a fourth movable handle (17) is arranged on the rear side of the bed frame (1), and the fourth movable handle (17) is hinged to the right end of the transverse rod.

6. A multi-position care bed according to claim 1, wherein: the second lifting mechanism comprises a hydraulic cylinder (18), the hydraulic cylinder (18) is arranged on the base frame (2), two rotating shafts (19) are arranged between the left side and the right side of the base frame (2), the two rotating shafts (19) are respectively arranged on the front side and the rear side of the base frame (2), the first lifting assembly and the second lifting assembly respectively comprise lifting pieces (20), the upper end of each lifting piece (20) of the first lifting assembly is hinged with the bed frame (1), the upper end of each lifting piece (20) of the second lifting assembly is hinged with the lower end of the supporting piece (9), the lower ends of the two lifting pieces (20) are respectively hinged with the rotating shafts (19) arranged on the same side, a second connecting rod assembly (21) is arranged between the two rotating shafts (19), and the second connecting rod assembly (21) is arranged below the base frame (2), second link assembly (21), two rotation axis (19) with bed frame (2) form parallelogram mechanism, two be equipped with the otic placode on one of them of rotation axis (19), the tailpiece of the piston rod of pneumatic cylinder (18) with the otic placode is articulated, the tail end of pneumatic cylinder (18) pass through third link assembly (22) with pedal mechanism connects, pedal mechanism includes pedal axle (23), pedal axle (23) set up along left right direction on bed frame (2), the both ends of pedal axle (23) are equipped with pedal assembly respectively.

7. A multi-position care bed according to claim 6, wherein: the pedal assembly comprises a first pedal (24) and a second pedal (25), the first pedal (24) is treaded to enable the first lifting assembly and the second lifting assembly to ascend synchronously, the second pedal (25) is treaded to enable the first lifting assembly and the second lifting assembly to descend synchronously, and the first pedal (24) and the second pedal (25) are arranged in a front-back mode.

8. A multi-position care bed according to claim 7, wherein: the left end and the right end of the two rotating shafts (19) and the pedal shaft (23) extend out of the left side and the right side of the base frame (2), the pedal assemblies are respectively arranged on the outer extending ends of the left side and the right side of the pedal shaft (23), and the first lifting assembly and the second lifting assembly are respectively symmetrically arranged on the outer extending ends of the left side and the right side of the rotating shafts (19).

9. A multi-position care bed according to claim 8, wherein: the first pedal (24) is connected with the second pedal (25) through a bent rod, and the first pedal (24) is arranged above the second pedal (25).

10. A multi-position care bed according to claim 1, wherein: the first movable handles (7) are symmetrically arranged on the left side and the right side of the back plate (3), and the second movable handles (8) are symmetrically arranged on the left side and the right side of the leg plate.