CN220370134U - Lifting zero-leaning wall nursing bed - Google Patents

Abstract

The utility model relates to the technical field of nursing beds, in particular to a lifting zero-leaning wall nursing bed which comprises a base, wherein a bed board assembly and an armrest board are arranged on the base; the bed body lifting assembly is arranged on the base; the output end of the bed body lifting assembly is connected with the zero wall leaning mechanism, and the output end of the zero wall leaning mechanism is connected with the bed board assembly; the handrail lifting mechanism is arranged on the zero wall leaning mechanism, and the output end of the handrail lifting mechanism is connected with the handrail plate. According to the lifting zero-leaning wall nursing bed, the position of the bed board assembly is changed through the zero-leaning wall mechanism, so that a user can be assisted to rise conveniently, and a bed head object can be taken conveniently no matter lying or sitting; the armrest lifting mechanism is used for controlling the lowering and lifting of the armrest plate, which is beneficial to the adjustment of nursing staff or people with inconvenient actions as required, ensures the safety of users and is convenient for the users to get on and get off the bed; realize the multifunctional application of nursing bed through three sets of mechanisms, promote the convenience of nursing.

Description

Lifting zero-leaning wall nursing bed

Technical Field

The utility model relates to the technical field of nursing beds, in particular to a lifting zero-leaning wall nursing bed.

Background

The nursing bed is a bed used by people with inconvenient actions in nursing homes or families, can be convenient for people to care patients or people with inconvenient actions, is also beneficial to the rehabilitation of users, has a single structure, and cannot meet the current diversified demands.

Disclosure of Invention

The utility model aims to solve the technical problems that: in order to solve the technical problem that the nursing bed in the prior art is single in function, the utility model provides the lifting zero-leaning wall nursing bed, provides various functions and improves nursing convenience.

The technical scheme adopted for solving the technical problems is as follows: a lifting zero-leaning wall nursing bed comprises a base, wherein a bed board assembly and an armrest board are arranged on the base; the bed body lifting assembly is arranged on the base; the output end of the bed body lifting assembly is connected with the zero wall leaning mechanism, and the output end of the zero wall leaning mechanism is connected with the bed board assembly; the handrail lifting mechanism is arranged on the zero wall leaning mechanism, and the output end of the handrail lifting mechanism is connected with the handrail plate. The lifting zero-leaning wall nursing bed disclosed by the utility model has the advantages that the lifting of the bed board assembly is controlled through the bed board lifting assembly, so that the proper height is conveniently provided for patients, the patients or persons with inconvenient actions can be conveniently assisted to get up, and further, the medical staff can conveniently feed and the like. The position of the bed board component is changed through the zero-leaning wall mechanism, so that a user can conveniently take articles at the bed head no matter lying or sitting; the armrest lifting mechanism is used for controlling the lowering and lifting of the armrest plate, which is beneficial to the adjustment of nursing staff or people with inconvenient actions as required, ensures the safety of users and is convenient for the users to get on and get off the bed; realize the multifunctional application of nursing bed through three sets of mechanisms, promote the convenience of nursing.

Further, in particular, the bed lifting assembly comprises

The rotary connecting piece is hinged with the base and is provided with at least two rotary connecting pieces;

the lifting frame is hinged with one end of the rotary connecting piece, which is far away from the base;

the fixed mount is hinged with one end of the rotating piece far away from the base, and the fixed mount is connected with the zero wall leaning mechanism;

the lifting push rod motor is hinged with the fixing frame, and the output end of the lifting push rod motor is hinged with the lifting frame.

Further, the lifting frame comprises lifting longitudinal beams, a first lifting cross beam and a second lifting cross beam, wherein two lifting longitudinal beams are arranged, and the first lifting cross beam and the second lifting cross beam are arranged in parallel and are welded with the two lifting longitudinal beams at the same time;

the fixing frame comprises a first fixing cross beam, a second fixing cross beam, a third fixing cross beam, a fourth fixing cross beam and fixing longitudinal beams, two fixing longitudinal beams are arranged, four fixing cross beams are arranged in parallel, and two ends of the fixing cross beams are welded with the two fixing longitudinal beams at the same time;

the rotary connecting piece comprises a rotary pipe and a hinged plate welded on the rotary pipe, one end of the hinged plate is hinged with the base, the other end of the hinged plate is hinged with the lifting longitudinal beam, and the rotary pipe is hinged with the fixing frame;

the lifting push rod motor is hinged with the middle part of the first fixed cross beam, and the output end of the lifting push rod motor is hinged with the middle part of the first lifting cross beam.

Further, the zero wall leaning mechanism comprises

The bed board assembly comprises a back bed board, a back buffer board, a buttock bed board, a thigh bed board and a shank bed board which are hinged in sequence;

the back driving assembly is connected with the fixing frame at one end and is abutted with the back bed plate at the other end so as to drive the back bed plate to lift or put down;

the leg driving assembly is connected with the sliding frame at one end and the thigh bed board and the shank bed board at the other end so as to drive the thigh bed board and the shank bed board to lift or put down.

Further, the bed board assembly further comprises a sliding frame, pulleys are rotatably connected to the two side faces of the sliding frame along the width direction of the base, sliding grooves for the pulleys to roll or slide are formed in the fixing frame, and the hip bed board is connected with the sliding frame;

the back driving assembly comprises a back driving support, a back wall-leaning connecting rod, a back supporting piece and a back push rod motor, one end of the back driving support is hinged to the sliding frame, the other end of the back driving support is in butt joint with the back bed plate, one end of the back wall-leaning connecting rod is hinged to the back driving support, the other end of the back supporting piece is hinged to the fixing frame, one end of the back supporting piece is hinged to the back driving support, the other end of the back supporting piece is hinged to the hinged portion of the back bed plate and the back buffer plate, the back push rod motor is hinged to the middle of the second fixed cross beam, and the output end of the back push rod motor is hinged to the back driving support.

Further, shank drive assembly includes shank I-shaped support, shank support connecting rod and shank push rod motor, shank I-shaped support's one end is articulated with the carriage, and the other end is articulated with shank bed board, shank support connecting rod one end is articulated with shank I-shaped support, and the other end articulates in the junction of thigh board bed board and shank board bed board, shank push rod motor's output and shank I-shaped support are articulated, shank push rod motor then is articulated with the carriage.

Further, the handrail lifting mechanism comprises a connecting rod assembly, a handrail lifting motor, a motor fixing rod and an extension piece, wherein the motor fixing rod is fixed on the sliding frame;

the connecting rod assembly comprises a connecting rod fixing piece, an L-shaped piece, an S-shaped piece and a handrail plate fixing piece, wherein the connecting rod fixing piece is fixedly connected with the sliding frame through an extending piece, the handrail plate fixing piece is fixedly connected with the handrail plate, one ends of the L-shaped piece and the S-shaped piece are hinged to different positions of the connecting rod fixing piece, the other ends of the L-shaped piece and the S-shaped piece are hinged to different positions of the handrail plate fixing piece, the connecting rod fixing piece and the handrail plate fixing piece are arranged in parallel, the handrail lifting motor is hinged to a motor fixing rod, and the output end of the handrail lifting motor is hinged to the L-shaped piece.

Further, the connecting rod assembly is provided with two groups along the length direction of the base, a synchronous connecting rod is fixedly connected between the two L-shaped pieces, and the output end of the handrail lifting motor is hinged with the synchronous connecting rod.

Further, the L-shaped piece is fixedly connected with a first limiting pin, and the first limiting pin is used for preventing the L-shaped piece and the S-shaped piece from continuously rotating clockwise to be close to the bed body when the handrail plate rises to the highest point.

Further, the extending piece is fixedly connected with a second limiting pin, and the second limiting pin is used for preventing the L-shaped piece and the S-shaped piece from continuing to rotate anticlockwise when the handrail plate falls to the lowest point.

The utility model has the beneficial effects that the lifting zero-leaning wall nursing bed of the utility model,

1. the lifting of the bed board assembly is controlled through the bed board lifting assembly, so that the patient can be conveniently given a proper height, the patient or the disabled with inconvenient actions can be conveniently assisted to get up, and further, the medical staff can conveniently feed and eat the patient. The position of the bed board component is changed through the zero-leaning wall mechanism, so that a user can conveniently take articles at the bed head no matter lying or sitting; the armrest lifting mechanism is used for controlling the lowering and lifting of the armrest plate, which is beneficial to the adjustment of nursing staff or people with inconvenient actions as required, ensures the safety of users and is convenient for the users to get on and get off the bed; the multifunctional application of the nursing bed is realized through the three sets of mechanisms, so that the nursing convenience is improved;

2. through the setting of first spacer pin and second spacer pin, be convenient for carry out spacingly to two states of handrail board, the handrail board of being convenient for is in place fast, reduces simultaneously because of the damage that the excessive motion of handrail board caused.

Drawings

The utility model will be further described with reference to the drawings and examples.

FIG. 1 is a schematic view of the overall structure of a lifting zero wall care bed embodying the present utility model.

Fig. 2 is a schematic structural view of a bed lifting assembly embodying the present utility model.

Fig. 3 is a schematic view of a structure of a lifting frame embodied in the present utility model.

Fig. 4 is a schematic structural view of a fixing frame according to the present utility model.

Fig. 5 is a schematic structural view of a zero wall mechanism embodying the present utility model.

Fig. 6 is a schematic view of a pulley and chute embodying the present utility model.

Fig. 7 is a schematic view of a back drive assembly embodying the present utility model.

Fig. 8 is a schematic view of a leg drive assembly embodying the present utility model.

Fig. 9 is a schematic view of a handrail lifting mechanism embodying the present utility model.

Fig. 10 is an enlarged partial cutaway schematic view of the portion a in fig. 9.

Fig. 11 is a schematic view of a structure of a handrail plate fastener embodying the present utility model.

In the figure, 1, a base; 11. a moving wheel; 2. a bed lifting assembly; 21. a lifting frame; 211. lifting the longitudinal beam; 212. a first lifting beam; 213. a second lifting beam; 22. a fixing frame; 221. a first fixed cross beam; 222. a second fixed cross beam; 223. a third fixed cross beam; 224. a fourth fixed cross beam; 225. fixing the longitudinal beam; 2251. a chute; 226. a fixed hinge plate; 23. a rotary connector; 231. a rotary tube; 232. a hinged plate; 24. a lifting push rod motor; 3. zero wall leaning mechanism; 31. a bed board component; 311. a carriage; 3111. a pulley; 312. a back plate connector; 3121. a back bed board; 3122. a first rolling groove; 313. a buffer plate connector; 3131. a back buffer plate; 314. hip plate connectors; 3141. buttock bed board; 315. thigh plate connectors; 3151. thigh bed board; 316. a shank plate connector; 3161. a shank bed board; 3162. a second rolling groove; 32. a back drive assembly; 321. a back drive bracket; 3211. a first roller; 322. a back wall-leaning connecting rod; 323. a back support; 324. a back push rod motor; 33. a leg drive assembly; 331. leg I-shaped brackets; 3311. a second roller; 332. leg support links; 333. a leg pushrod motor; 4. a handrail lifting mechanism; 41. a handrail plate; 42. a connecting rod assembly; 421. a connecting rod fixing member; 422. an L-shaped member; 4221. a first limit pin; 423. an S-shaped piece; 424. a handrail plate fixing member; 43. a synchronous connecting rod; 44. a handrail lifting motor; 45. a motor fixing rod; 46. an extension member; 461. a second limiting pin; 5. a headboard; 6. bed tail plate.

Detailed Description

The utility model will now be described in further detail with reference to the accompanying drawings. The drawings are simplified schematic representations which merely illustrate the basic structure of the utility model and therefore show only the structures which are relevant to the utility model.

The utility model discloses a lifting zero-leaning wall nursing bed.

Referring to fig. 1, a lifting zero wall-leaning nursing bed comprises a base 1, a bed body lifting assembly 2, a zero wall-leaning mechanism 3 and an armrest lifting mechanism 4, wherein moving wheels 11 are rotationally connected at four corner points of the base 1, so that the nursing bed is convenient to move.

Referring to fig. 2 and 3, the bed lifting assembly 2 includes a lifting frame 21, a fixing frame 22, a rotary connecting piece 23 and a lifting push rod motor 24, the lifting frame 21 includes a lifting longitudinal beam 211, a first lifting cross beam 212 and a second lifting cross beam 213, the lifting longitudinal beam 211 is provided with two, and the first lifting cross beam 212 and the second lifting cross beam 213 are arranged in parallel and are welded with the two lifting longitudinal beams 211 at the same time.

Referring to fig. 2 and 4, the fixing frame 22 includes a first fixing beam 221, a second fixing beam 222, a third fixing beam 223, a fourth fixing beam 224, and fixing stringers 225, the fixing stringers 225 are provided with two, four fixing beams all disposed in parallel, and both ends are welded with the two fixing stringers 225 at the same time. The rotary connector 23 comprises a rotary pipe 231 and a hinged plate 232 welded on the rotary pipe 231, two hinged fixing plates 226 are fixedly connected to the first fixed cross beam 221, one end of the hinged plate 232 is hinged to the base 1, the other end of the hinged plate 232 is hinged to the lifting longitudinal beam 211, and the rotary pipe 231 is hinged to the two hinged fixing plates 226. The two ends of the head and the tail of the base 1 are respectively provided with a rotary connecting piece 23 which is positioned at four corner points of the base 1 so as to improve the stability during lifting.

Referring to fig. 1, a headboard 5 is fixedly connected to one end of the fixing frame 22 along the length direction of the base 1, a tailboard 6 is fixedly connected to the sliding frame 311, and the tailboard 6 and the tailboard 5 are oppositely arranged along the length direction of the base.

Referring to fig. 2, the lifter motor 24 is hinged to the middle of the first fixed cross member 221, and the output end of the lifter motor 24 is hinged to the middle of the first lifter cross member 212. When the fixing frame 22 needs to be lifted, the output end of the lifting push rod motor 24 stretches out to drive the lifting frame 21 to move towards the left, so that the hinge plate 232 rotates around the axis of the rotating tube 231, the hinge plate 232 rotates anticlockwise around the hinge point of the hinge plate 232 and the base 1, and the fixing frame 22 moves upwards. In the initial state, the axis of the rotating tube 231 is lower than the axis of the hinge plate 232 hinged to the base 1, at this time, the fixing frame 22 moves towards the upper right, and when the axis of the rotating tube 231 is not lower than the axis of the hinge plate 232 hinged to the base 1, the fixing frame 22 moves towards the upper left to a position close to the wall body, so that the fixing frame 22 is lifted.

Referring to fig. 5 and 6, the zero wall mechanism 3 includes a bed plate assembly 31, a back driving assembly 32 and a leg driving assembly 33, the bed plate assembly 31 includes a sliding frame 311 and a back plate connector 312, a buffer plate connector 313, a hip plate connector 314, a thigh plate connector 315 and a shank plate connector 316 which are hinged in sequence, and meanwhile, the back plate 3121 is fixedly connected to the back plate connector 312, the back buffer plate 3131 is fixedly connected to the buffer plate connector 313, the hip plate 3141 is fixedly connected to the hip plate connector 314, the thigh plate 3151 is fixedly connected to the thigh plate connector 315, and the shank plate 3161 is fixedly connected to the shank plate connector 316. The sliding frame 311 is rotatably connected with a pulley 3111 on two lateral sides of the base 1 along the width direction, a sliding groove 2251 for the pulley 3111 to roll or slide is formed on the side wall of the fixed longitudinal beam 225, and one end of the hip plate connecting piece 314 far away from the hip bed plate 3141 is fixedly connected with the sliding frame 311.

Referring to fig. 5 and 7, the back driving assembly 32 includes a back driving bracket 321, a back wall connecting rod 322, a back supporting member 323 and a back push rod motor 324, one end of the back driving bracket 321 is hinged to the sliding frame 311, the other end is rotatably connected to a first roller 3211, and the back board connecting member 312 is provided with a first rolling groove 3122 for the first roller 3211 to roll or slide. One end of the back wall-leaning connecting rod 322 is hinged with the middle part of the back driving bracket 321, and the other end is hinged with the middle part of the fourth fixed cross beam 224. One end of the back support 323 is hinged with the back driving bracket 321, and the other end is hinged with the hinge position of the back plate connecting piece 312 and the buffer plate connecting piece 313. The back push rod motor 324 is hinged to the middle part of the second fixed cross beam 222, and the output end of the back push rod motor 324 is hinged to the back driving bracket 321. When the back push rod motor 324 works, the output end of the back push rod motor 324 extends out, and the back wall-leaning connecting rod 322 supports the back driving support 321, so that the back driving support 321 rotates clockwise around a connecting point with the sliding frame 311 and drives the sliding frame 311 to move towards the headboard 5 to lean against the wall, the first roller 3211 at the end part of the back driving support 321 supports the back bed plate 3121 to rotate clockwise around the connecting point between the backboard connecting piece 312 and the buffer board connecting piece 313, and the aim that the distance from the arms in sitting and lying states to the headboard is kept unchanged as much as possible when the back of a user is lifted is achieved, so that the user can conveniently take articles at the headboard. Simultaneously, the back support 323 supports the back buffer plate 3131, so that a buffer is formed between the back bed plate 3121 and the hip bed plate 3141, the extrusion to the back is reduced, and the mattress is more fit and is more fit with the back arc of a human body.

Referring to fig. 7 and 8, the leg driving assembly 33 includes a leg i-shaped bracket 331, a leg supporting link 332, and a leg pushing rod motor 333, one end of the leg i-shaped bracket 331 is hinged to the sliding frame 311, the other end is rotatably connected to a second roller 3311, and a second rolling groove 3162 for rolling or sliding the second roller 3311 is formed in the lower leg plate connecting member 316. The leg support link 332 is hinged at one end to the leg i-bracket 331 and at the other end to the junction of the thigh plate link 315 and the shank plate link 316. The output end of the leg pushing rod motor 333 is hinged with the leg I-shaped bracket 331, and the motor of the leg pushing rod motor 333 is hinged with the cross beam of the sliding frame 311. When the leg pushing rod motor 333 pushes out the pushing rod end of the leg pushing rod motor 333 to drive the leg I-shaped support 331 to rotate anticlockwise around the hinge point with the sliding frame 311, the rollers at the end part of the leg I-shaped support 331 support the shank bed board 3161 to lift upwards, and the thigh bed board 3151 rotates anticlockwise to lift. Meanwhile, the leg support connecting rod 332 supports the joint of the thigh board connecting piece 315 and the shank board connecting piece 316, so that the end part of the shank bed board 3161 has a downward angle, and can be attached to the posture of a user, and the tightness of the legs is relieved.

Referring to fig. 9 to 11, the armrest lifting mechanism 4 is provided with two armrest lifting mechanisms, which are respectively provided on both sides of the carriage 311 in the width direction of the base 1, and the armrest lifting mechanism 4 includes an armrest plate 41, a link assembly 42, a synchronizing link 43, an armrest lifting motor 44, a motor fixing rod 45, and an extension piece 46, and the motor fixing rod 45 is fixed to the carriage 311. The link assembly 42 includes a link fixing member 421, an L-shaped member 422, an S-shaped member 423, and a handrail plate fixing member 424. The connecting rod fixing piece 421 is fixedly connected with the sliding frame 311 through the extending piece 46, the handrail plate fixing piece 424 is fixedly connected with the handrail plate 41, one ends of the L-shaped piece 422 and the S-shaped piece 423 are hinged with different positions of the connecting rod fixing piece 421, the other ends of the L-shaped piece 422 and the S-shaped piece 423 are both hinged with different positions of the handrail plate fixing piece 424, and the connecting rod fixing piece 421 and the handrail plate fixing piece 424 are arranged in parallel. In order to ensure the stability of the handrail, each side of the sliding frame 311 along the width direction of the base 1, which is close to the head and the leg, is provided with 1 connecting rod assembly 42 respectively, which are connected through a synchronous connecting rod 43, namely, the synchronous connecting rod 43 is fixedly connected with two L-shaped pieces 422, the output end of the handrail lifting motor 44 is hinged with the middle part of the synchronous connecting rod 43, so that the synchronous movement and the uniform stress of the handrail lifting motor are ensured, and the other end of the handrail lifting motor 44 is hinged with a motor fixing rod 45. When the push rod of the armrest lifting motor 44 is retracted, the synchronous link 43 is pulled to drive the L-shaped member 422 to rotate counterclockwise around the connection point with the link fixing member 421, and simultaneously the S-shaped member 423 rotates counterclockwise around the connection point with the link fixing member 421, thereby driving the armrest plate 41 fixed on the armrest plate fixing member 424 to descend.

The lifting height of the armrest plate 41 is mainly limited by the armrest lifting motor 44, and in order to assist the armrest lifting motor 44 to limit, a first limiting pin 4221 is fixedly connected to the L-shaped member, and a second limiting pin 461 is fixedly connected to the extending member 46. When the armrest plate 41 rises to the highest point, the first limiting pin 4221 abuts against the S-shaped piece 423, so as to prevent the L-shaped piece 422 and the S-shaped piece 423 from continuously rotating clockwise to approach the sliding frame 311, ensure a safe distance between the armrest plate 41 and the sliding frame 311, and prevent clamping injury. When the armrest plate 41 descends to the lowest point, the second limiting pin 461 abuts against the S-shaped piece 423, so as to prevent the L-shaped piece 422 and the S-shaped piece 423 from continuing to rotate anticlockwise, and prevent the armrest plate 41 from being deformed by extrusion with the bed frame.

Working principle: when the fixing frame 22 needs to be lifted, the output end of the lifting push rod motor 24 stretches out to drive the lifting frame 21 to move towards the left side, so that the rotary connecting piece 23 rotates anticlockwise around the hinge point of the rotary connecting piece 23 and the base 1, the fixing frame 22 moves upwards, and the lifting of the fixing frame 22 is realized.

When the back of a user needs to be lifted, the output end of the back push rod motor 324 extends out, and due to the support of the back wall leaning connecting rod 322 to the back driving support 321, the back driving support 321 rotates clockwise around a connecting point with the sliding frame 311 and drives the sliding frame 311 to move towards the headboard 5 to lean against the wall, and the roller at the end of the back driving support 321 supports the back bed plate 3121 to rotate clockwise around the connecting point between the backboard connecting piece 312 and the buffer board connecting piece 313, so that the back of the user is lifted, and the distance from the arms in sitting and lying states to the headboard is kept unchanged as much as possible, so that the user can take articles at the headboard conveniently. Simultaneously, the back support 323 supports the back buffer plate 3131, so that a buffer is formed between the back bed plate 3121 and the hip bed plate 3141, the extrusion to the back is reduced, and the mattress is more fit and is more fit with the back arc of a human body.

When the leg pushing rod motor 333 pushes out the pushing rod end of the leg pushing rod motor 333 to drive the leg I-shaped support 331 to rotate anticlockwise around the hinge point with the sliding frame 311, the second roller 3311 at the end of the leg I-shaped support 331 supports the calf bed plate 3161 to lift upwards, and the thigh bed plate 3151 rotates anticlockwise to lift. Meanwhile, the leg support connecting rod 332 supports the joint of the thigh board connecting piece 315 and the shank board connecting piece 316, so that the end part of the shank bed board 3161 has a downward angle, and can be attached to the posture of a user, and the tightness of the legs is relieved.

When the push rod of the armrest lifting motor 44 is retracted, the synchronous link 43 is pulled to drive the L-shaped member 422 to rotate counterclockwise around the connection point with the link fixing member 421, and simultaneously the S-shaped member 423 rotates counterclockwise around the connection point with the link fixing member 421, thereby driving the armrest plate 41 fixed on the armrest plate fixing member 424 to descend.

When the armrest plate 41 rises to the highest point, the first limiting pin 4221 abuts against the S-shaped piece 423, so as to prevent the L-shaped piece 422 and the S-shaped piece 423 from continuously rotating clockwise to approach the sliding frame 311, ensure a safe distance between the armrest plate 41 and the sliding frame 311, and prevent clamping injury. When the armrest plate 41 descends to the lowest point, the second limiting pin 461 abuts against the S-shaped piece 423, so as to prevent the L-shaped piece 422 and the S-shaped piece 423 from continuing to rotate anticlockwise, and prevent the armrest plate 41 from being deformed by extrusion with the bed frame.

With the above-described preferred embodiments according to the present utility model as an illustration, the above-described descriptions can be used by persons skilled in the relevant art to make various changes and modifications without departing from the scope of the technical idea of the present utility model. The technical scope of the present utility model is not limited to the description, but must be determined according to the scope of claims.

Claims (10)

1. A lifting zero wall-leaning nursing bed, which is characterized in that: comprising

The bed board comprises a base (1), wherein a bed board assembly (31) and a handrail board (41) are arranged on the base (1);

the bed body lifting assembly (2), the bed body lifting assembly (2) is arranged on the base (1);

the output end of the bed body lifting assembly (2) is connected with the zero wall leaning mechanism (3), and the output end of the zero wall leaning mechanism (3) is connected with the bed board assembly (31);

the handrail lifting mechanism (4) is arranged on the zero wall leaning mechanism (3), and the output end of the handrail lifting mechanism (4) is connected with the handrail plate (41);

the zero wall leaning mechanism (3) comprises

The bed board assembly (31), wherein the bed board assembly (31) comprises a back bed board (3121), a hip bed board (3141), a thigh bed board (3151) and a shank bed board (3161) which are hinged in sequence;

a back driving component (32), wherein one end of the back driving component (32) is connected with the fixed frame (22), and the other end of the back driving component is abutted with the back bed plate (3121) so as to drive the back bed plate (3121) to be lifted or put down;

and a leg driving assembly (33), wherein one end of the leg driving assembly (33) is connected with the sliding frame (311), and the other end is connected with the thigh bed plate (3151) and the shank bed plate (3161) so as to drive the thigh bed plate (3151) and the shank bed plate (3161) to be lifted or put down.

2. The lifting zero wall care bed of claim 1, wherein: the bed body lifting assembly (2) comprises

The rotary connecting pieces (23), the rotary connecting pieces (23) are hinged with the base (1), and the rotary connecting pieces (23) are provided with at least two;

the lifting frame (21) is hinged with one end of the rotary connecting piece (23) far away from the base (1);

the fixed mount (22), one end of the fixed mount (22) far away from the base (1) is hinged with the rotating piece, and the fixed mount (22) is connected with the zero wall leaning mechanism (3);

the lifting push rod motor (24), the lifting push rod motor (24) is hinged with the fixing frame (22), and the output end of the lifting push rod motor (24) is hinged with the lifting frame (21).

3. The lifting zero wall care bed of claim 2, wherein: the lifting frame (21) comprises lifting longitudinal beams (211), a first lifting cross beam (212) and a second lifting cross beam (213), wherein two lifting longitudinal beams (211) are arranged, and the first lifting cross beam (212) and the second lifting cross beam (213) are arranged in parallel and are welded with the two lifting longitudinal beams (211) at the same time;

the fixing frame (22) comprises a first fixed cross beam (221), a second fixed cross beam (222), a third fixed cross beam (223), a fourth fixed cross beam (224) and fixed longitudinal beams (225), two fixed longitudinal beams (225) are arranged, four fixed cross beams are arranged in parallel, and two ends of the fixed cross beams are welded with the two fixed longitudinal beams (225) at the same time;

the rotary connecting piece (23) comprises a rotary pipe (231) and a hinged plate (232) welded on the rotary pipe (231), one end of the hinged plate (232) is hinged with the base (1), the other end of the hinged plate is hinged with the lifting longitudinal beam (211), and the rotary pipe (231) is hinged with the fixing frame (22);

the lifting push rod motor (24) is hinged with the middle part of the first fixed cross beam (221), and the output end of the lifting push rod motor (24) is hinged with the middle part of the first lifting cross beam (212).

4. The lifting zero wall care bed of claim 1, wherein: a back buffer plate (3131) is further arranged between the back bed plate (3121) and the hip bed plate (3141), one end of the back buffer plate (3131) is hinged with the back bed plate (3121), and the other end is hinged with the hip bed plate (3141).

5. The lifting zero wall care bed as defined in claim 4, wherein: the bed board assembly (31) further comprises a sliding frame (311), pulleys (3111) are rotatably connected to the sliding frame (311) along two lateral sides of the base (1) in the width direction, sliding grooves (2251) for the pulleys (3111) to roll or slide are formed in the fixing frame (22), and the hip bed board (3141) is connected with the sliding frame (311);

the back driving assembly (32) comprises a back driving support (321), a back wall connecting rod (322), a back supporting piece (323) and a back push rod motor (324), one end of the back driving support (321) is hinged to the sliding frame (311), the other end of the back driving support is in butt joint with the back bed plate (3121), one end of the back wall connecting rod (322) is hinged to the back driving support (321), the other end of the back supporting piece (323) is hinged to the fixing frame (22), one end of the back supporting piece (323) is hinged to the back driving support (321), the other end of the back supporting piece is hinged to the hinged portion of the back bed plate (3121) and the back buffer plate (3131), the back push rod motor (324) is hinged to the middle of the second fixed cross beam (222), and the output end of the back push rod motor (324) is hinged to the back driving support (321).

6. The lifting zero wall care bed as defined in claim 4, wherein: the leg driving assembly (33) comprises a leg I-shaped support (331), a leg supporting connecting rod (332) and a leg pushing rod motor (333), one end of the leg I-shaped support (331) is hinged to the sliding frame (311), the other end of the leg I-shaped support is in butt joint with the shank bed board (3161), one end of the leg supporting connecting rod (332) is hinged to the leg I-shaped support (331), the other end of the leg supporting connecting rod is hinged to the joint of the thigh bed board (3151) and the shank bed board (3161), the output end of the leg pushing rod motor (333) is hinged to the leg I-shaped support (331), and the leg pushing rod motor (333) is hinged to the sliding frame (311).

7. The lifting zero wall care bed as defined in claim 4, wherein: the handrail lifting mechanism (4) comprises a connecting rod assembly (42), a handrail lifting motor (44), a motor fixing rod (45) and an extension piece (46), wherein the motor fixing rod (45) is fixed on the sliding frame (311);

the connecting rod assembly (42) comprises a connecting rod fixing piece (421), an L-shaped piece (422), an S-shaped piece (423) and a handrail plate fixing piece (424), the connecting rod fixing piece (421) is fixedly connected with the sliding frame (311) through an extending piece (46), the handrail plate fixing piece (424) is fixedly connected with the handrail plate (41), one ends of the L-shaped piece (422) and the S-shaped piece (423) are hinged to different positions of the connecting rod fixing piece (421), the other ends of the L-shaped piece (422) and the S-shaped piece (423) are both hinged to different positions of the handrail plate fixing piece (424), the connecting rod fixing piece (421) and the handrail plate fixing piece (424) are arranged in parallel, the handrail lifting motor (44) is hinged to a motor fixing rod (45), and the output end of the handrail lifting motor (44) is hinged to the L-shaped piece (422).

8. The lifting zero wall care bed as recited in claim 7, wherein: the connecting rod assembly (42) is provided with two groups along the length direction of the base (1), a synchronous connecting rod (43) is fixedly connected between the two L-shaped pieces (422), and the output end of the handrail lifting motor (44) is hinged with the synchronous connecting rod (43).

9. The lifting zero wall care bed as recited in claim 7, wherein: the L-shaped piece (422) is fixedly connected with a first limiting pin (4221), and the first limiting pin (4221) is used for preventing the L-shaped piece (422) and the S-shaped piece (423) from continuously rotating clockwise to be close to the bed body when the handrail plate (41) rises to the highest point.

10. The lifting zero wall care bed as recited in claim 7, wherein: the extending piece (46) is fixedly connected with a second limiting pin (461), and the second limiting pin (461) is used for preventing the L-shaped piece (422) and the S-shaped piece (423) from continuously rotating anticlockwise when the handrail plate (41) is lowered to the lowest point.