阅读说明：本技术 一种可分离多功能护理床 (Separable multifunctional nursing bed ) 是由 王洪波 刘文杰 李仁杰 刘海峰 于 2021-08-30 设计创作，主要内容包括：本发明涉及医疗护理技术领域,尤其是涉及一种可分离多功能护理床。本发明包括固定床体和可拆卸连接在固定床体上的可移动轮椅床；可移动轮椅床包括用于与人体接触的接触板、用于支撑接触板的轮椅底板以及设置在轮椅底板与接触板之间的抬背机构、曲腿机构及侧翻机构；本发明设有抬背机构、曲腿机构、侧翻机构,当可移动轮椅床与固定床体组合时,可以实现翻身、抬背和曲腿功能,对患者术前术后进行一定程度的康复训练,减轻护理人员的工作强度。固定床体和可移动轮椅床分离后,可移动轮椅床变形为轮椅形态能够实现自行移动,实现病患的输送。(The invention relates to the technical field of medical care, in particular to a separable multifunctional nursing bed. The invention comprises a fixed bed body and a movable wheelchair bed detachably connected on the fixed bed body; the movable wheelchair bed comprises a contact plate for contacting with a human body, a wheelchair bottom plate for supporting the contact plate, and a back lifting mechanism, a leg bending mechanism and a side turning mechanism which are arranged between the wheelchair bottom plate and the contact plate; the invention is provided with the back lifting mechanism, the leg bending mechanism and the side turning mechanism, when the movable wheelchair bed is combined with the fixed bed body, the functions of turning over, back lifting and leg bending can be realized, a certain degree of rehabilitation training can be performed to the patients before and after operation, and the working strength of nursing staff is reduced. After the fixed bed body is separated from the movable wheelchair bed, the movable wheelchair bed is deformed into a wheelchair shape to realize self-moving, and the delivery of patients is realized.)

1. A separable multifunctional nursing bed is characterized in that: comprises a fixed bed body (1) and a movable wheelchair bed (2) detachably connected on the fixed bed body (1);

the movable wheelchair bed (2) comprises a contact plate (21) used for contacting with a human body, a wheelchair bottom plate (22) used for supporting the contact plate (21), and a back lifting mechanism (23), a leg bending mechanism and a side overturning mechanism which are arranged between the wheelchair bottom plate (22) and the contact plate (21);

the contact plate (21) comprises a back plate (211), a thigh plate (212), a shank plate (213) and a pedal (214) which are connected in turn through a rotating shaft in a rotating manner;

the back lifting mechanism (23) comprises a back lifting support rod (232) with one end rotatably mounted on the wheelchair bottom plate (22) and the other end mounted on the back plate (211) through a back lifting wheel (231), and a back lifting electric push rod (233) with a fixed end hinged on the wheelchair bottom plate (22) and a telescopic end rotatably mounted on the back lifting support rod (232);

the leg bending mechanism comprises

The lower leg bending mechanism (24) comprises a leg bending connecting rod mechanism (241) symmetrically arranged on a rotating shaft which is rotatably connected with the lower leg plate (213) and the pedal (214), and a lower leg bending electric push rod (242) of which the fixed end is arranged on the leg bending connecting rod mechanism (241) and the telescopic end is fixedly connected with the rotating shaft which is used for rotatably connecting the upper leg plate (212) and the back plate (211);

the thigh leg bending mechanism (25) comprises a first electric push rod (251), a second electric push rod (252) and a third electric push rod (253), the fixed ends of the first electric push rod, the second electric push rod and the third electric push rod are hinged to the wheelchair bottom plate (22), and the telescopic ends of the first electric push rod, the second electric push rod and the third electric push rod are rotatably connected to the thigh plate (212); the first electric push rod (251) is arranged on the thigh plate (212) close to the back plate (211), and the second electric push rod (252) and the third electric push rod (253) are symmetrically arranged on the thigh plate (212) far away from the back plate (211).

2. The detachable multifunctional nursing bed according to claim 1, wherein: the fixed bed body (1) comprises a bed frame (11), a headboard (12) arranged at one end of the bed frame (11), a first fixed bed board (13) and a second fixed bed board (14) which are oppositely arranged on the bed frame (11), and at least two movable bed boards (15) which are oppositely arranged on the bed frame (11) and movably connected with the bed frame (11); wherein the content of the first and second substances,

a gap (3) for accommodating and installing the movable wheelchair bed (2) is arranged in the middle of the bedstead (11);

the gap (3) sequentially penetrates between the two first fixed bed boards (13), the two movable bed boards (15) and the two second fixed bed boards (14) which are oppositely arranged.

3. The detachable multifunctional nursing bed according to claim 2, wherein: cylindrical grooves (7) are formed in the side walls, close to the gap (3), of the movable bed plate (15) and the second fixed bed plate (14), and protruding cylinders (8) in matched connection with the cylindrical grooves (7) are arranged on the side walls, close to the bed frame (11), of the thigh plate (212) and the shank plate (213).

4. The detachable multifunctional nursing bed according to claim 2, wherein: the leg bending link mechanism (241) comprises a first connecting rod (2411) with one end fixedly installed on a rotating shaft for rotating and connecting the pedal (214) and the lower leg plate (213), an L-shaped connecting rod (2413) with one end rotatably connected with the first connecting rod (2411) and the other end rotatably connected with the fixed end of the first lower leg bending electric push rod (242), and a second connecting rod (2412) with one end fixedly installed on one side of the upper leg plate (212) far away from a patient and the other end rotatably connected with the vertex angle of the L-shaped connecting rod (2413).

5. The detachable multifunctional nursing bed according to claim 2, wherein: two side walls of the thigh plate (212) close to the bedstead (11) are provided with notches (26) for placing rotatable wheelchair armrests (27).

6. A detachable multifunctional nursing bed according to any one of claims 2-5, characterized in that: and guardrails (16) are arranged on two sides of the bedstead (11) far away from the gap (3).

7. The detachable multifunctional nursing bed according to claim 1, wherein: the side-turning mechanism realizes the side turning of the thigh plate (212) by using a first electric push rod (251), a second electric push rod (252) and a third electric push rod (253).

8. The detachable multifunctional nursing bed of claim 7, wherein: the telescopic ends of the first electric push rod (251), the second electric push rod (252) and the third electric push rod (253) are rotatably connected with the back plate (211) through a spherical hinge seat (254); the fixed ends of the first electric push rod (251), the second electric push rod (252) and the third electric push rod (253) are rotatably connected with the wheelchair bottom plate (22) through Hooke joints (255).

9. The detachable multifunctional nursing bed according to claim 1, wherein: the movable wheelchair bed (2) further comprises rolling wheels (4) arranged on the wheelchair bottom plate (22) and used for moving the movable wheelchair bed (2) and universal wheels (5) used for steering.

10. The detachable multifunctional nursing bed of claim 8, wherein: the wheelchair comprises a wheelchair base plate (22) and is characterized in that at least two idler wheels (4) and at least two universal wheels (5) are arranged on the wheelchair base plate (22), and at least two driving motors (6) used for driving the idler wheels (4) are arranged on the wheelchair base plate.

Technical Field

The invention relates to the technical field of medical care, in particular to a separable multifunctional nursing bed.

Background

With the rapid development of social economy, the living standard of people is continuously improved, the service life of the population is continuously prolonged, and the urban population gradually gets into aging. The potential of the current family demand nursing bed is increasing day by day, the former is a simple nursing bed, and the guard bar and the dining table are added later; then, a stool hole and a wheel are added; the multifunctional and electric nursing bed integrating a plurality of functions is produced, the rehabilitation nursing level of a patient is greatly improved, and great convenience is provided for nursing staff. However, the pressure sore problem, the limb skill degradation problem and the psychological problem are increasingly prominent, so that the nursing work is heavy, the resources of professional nursing personnel are in short supply, and the nursing work is difficult to develop.

The existing nursing bed device has single function and disadvantages: the traditional nursing bed device is not as flexible and convenient as a common wheelchair in activity. The function is single, the bed board can be driven only by a simple mechanism to realize the functions required by daily life, the requirements of nursing positions such as leg lifting and turning over cannot be met, and the defect that secondary injury is easily caused to a patient in the moving process of the patient exists. Therefore, the multifunctional nursing bed which is simple in structure, reliable in work and capable of integrating various functions of nursing, carrying and the like has important social significance.

Disclosure of Invention

The invention aims to overcome the defects that in the prior art, a nursing bed has a single function, a patient is difficult to move, the nursing position can not be met, a nursing person is required to perform rehabilitation training on the patient, and secondary injury is easily caused to the patient, and provides a separable multifunctional nursing bed which combines a fixed bed body and a movable wheelchair bed and can meet the daily requirement of the patient.

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

a separable multifunctional nursing bed comprises a fixed bed body and a movable wheelchair bed detachably connected to the fixed bed body;

the movable wheelchair bed comprises a contact plate for contacting with a human body, a wheelchair bottom plate for supporting the contact plate, and a back lifting mechanism, a leg bending mechanism and a side turning mechanism which are arranged between the wheelchair bottom plate and the contact plate;

the contact plate comprises a back plate, a thigh plate, a shank plate and a pedal plate which are connected in turn through a rotating shaft in a rotating manner;

the back lifting mechanism comprises a back lifting support rod with one end rotatably mounted on the wheelchair bottom plate and the other end mounted on the back plate through a back lifting wheel, and a back lifting electric push rod with a fixed end hinged on the wheelchair bottom plate and a telescopic end rotatably mounted on the back lifting support rod;

the leg bending mechanism comprises

The crus leg bending mechanism comprises leg bending connecting rod mechanisms symmetrically arranged on a rotating shaft which is used for rotatably connecting the crus plate and the pedal, and a crus leg bending electric push rod of which the fixed end is arranged on the leg bending connecting rod mechanism and the telescopic end is fixedly connected with the rotating shaft which is used for rotatably connecting the thigh plate and the back plate;

the thigh leg bending mechanism comprises a first electric push rod, a second electric push rod and a third electric push rod, wherein the fixed end of the first electric push rod is hinged to the wheelchair bottom plate, and the telescopic end of the first electric push rod is rotatably connected to the thigh plate; the first electric push rod is arranged on the thigh plate close to the back plate, and the second electric push rod and the third electric push rod are symmetrically arranged on the thigh plate far away from the back plate.

Further, the fixed bed body comprises a bed frame, a headboard arranged at one end of the bed frame, a first fixed bed board and a second fixed bed board which are oppositely arranged on the bed frame, and at least two movable bed boards which are oppositely arranged on the bed frame and movably connected with the bed frame; wherein the content of the first and second substances,

a gap for accommodating and installing the movable wheelchair bed is arranged in the middle of the bedstead;

the gap sequentially penetrates between the two first fixed bed boards, the two movable bed boards and the two second fixed bed boards which are oppositely arranged.

Furthermore, cylindrical grooves are formed in the side walls, close to the gap, of the movable bed plate and the second fixed bed plate, and protruding cylinders matched and connected with the cylindrical grooves are arranged on the side walls, close to the bed frame, of the thigh plates and the shank plates.

Furthermore, the leg bending connecting rod mechanism comprises a first connecting rod, an L-shaped connecting rod and a second connecting rod, wherein one end of the first connecting rod is fixedly arranged on a rotating shaft which is used for rotatably connecting the pedal plate and the lower leg plate, one end of the L-shaped connecting rod is rotatably connected with the first connecting rod, the other end of the L-shaped connecting rod is rotatably connected with the fixed end of the first lower leg bending electric push rod, and one end of the second connecting rod is fixedly arranged on one side, far away from the patient, of the lower leg plate, and the other end of the second connecting rod is rotatably connected with the vertex angle of the L-shaped connecting rod.

Furthermore, the two side walls of the thigh plate close to the bedstead are provided with notches for placing rotatable wheelchair armrests.

Further, both sides of the bedstead, which are far away from the gap, are provided with guardrails.

Furthermore, the side-turning mechanism realizes the side turning of the thigh plate by utilizing the first electric push rod, the first electric push rod and the first electric push rod.

Furthermore, the telescopic ends of the first electric push rod, the second electric push rod and the third electric push rod are rotatably connected with the back plate through spherical hinge seats; the fixed ends of the first electric push rod, the second electric push rod and the third electric push rod are rotatably connected with the wheelchair bottom plate through hooke joints.

Furthermore, the movable wheelchair bed also comprises movable rolling wheels arranged on the wheelchair bottom plate and used for the movable wheelchair bed and universal wheels used for steering.

Furthermore, the wheelchair bottom plate is provided with at least two idler wheels and at least two universal wheels, and the bottom plate is provided with at least two driving motors for driving the idler wheels.

The separable multifunctional nursing bed has the beneficial effects that:

(1) the separable multifunctional nursing bed comprises a fixed bed body and a movable wheelchair bed detachably connected with the fixed bed body, and the combination and separation of the fixed bed body and the movable wheelchair bed are realized through the structures of the convex cylinders and the cylindrical grooves, so that the advantages of compactness, convenience and flexibility of the movable wheelchair bed in the carrying process of a patient are kept, the size of the bed is large enough when the bed is deformed into a bed shape, the requirement of the patient can be met, and the comfort level of the patient is ensured.

(2) The invention is provided with the back lifting mechanism, the leg bending mechanism and the side turning mechanism, when the movable wheelchair bed is combined with the fixed bed body, the functions of turning over, back lifting and leg bending can be realized, a certain degree of rehabilitation training can be performed to the patients before and after operation, and the working strength of nursing staff is reduced. After the fixed bed body and the movable wheelchair bed are separated, the movable wheelchair bed is deformed into a seat shape to realize self-moving, and the delivery of patients is realized.

(3) After being separated from the fixed bed body, the movable wheelchair bed can provide the functions of lifting the back and bending the legs, and the parallelogram mechanism formed by the thigh plate, the leg plate and the leg bending link mechanism ensures that the pedal plate can keep parallel with the thigh plate no matter how the thigh plate and the leg plate rotate, so that the nursing bed can enable a patient to have comfortable sitting posture no matter in a bed mode or in a wheelchair mode when the legs are bent, secondary injury to the patient is avoided, and the flexibility of the height of the nursing bed can meet the requirements of different patients.

Drawings

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

FIG. 1 is a schematic diagram of a separation structure of a fixed bed body and a movable wheelchair bed of a nursing bed according to an embodiment of the present invention;

FIG. 2 is a structural view of the movable wheelchair bed according to the embodiment of the present invention in a bed configuration;

FIG. 3 is an overall configuration view of a movable wheelchair bed according to an embodiment of the present invention in a seat configuration;

FIG. 4 is an enlarged view at A in FIG. 3 of an embodiment of the present invention;

FIG. 5 is an enlarged view at C in FIG. 3 of an embodiment of the present invention;

FIG. 6 is a schematic view of the lower perspective of the movable wheelchair bed of the present invention in the chair configuration;

FIG. 7 is a schematic view of a first perspective of a bed mode with a left rollover in accordance with an embodiment of the present invention;

FIG. 8 is a schematic view of a second perspective view of a bed mode with a left rollover in accordance with an embodiment of the present invention;

fig. 9 is an enlarged view at B in fig. 8.

In the figure, 1, a fixed bed body, 11, a bed frame, 12, a headboard, 13, a first fixed bed board, 14, a second fixed bed board, 15, a movable bed board, 16, a guardrail, 2, a movable wheelchair bed, 21, a contact board, 211, a back board, 212, a thigh board, 213, a shank board, 214, a pedal, 22, a wheelchair bottom board, 23, a back lifting mechanism, 231, a back lifting wheel, 232, a back lifting support rod, 233, a back lifting electric push rod, 24, a shank leg bending mechanism, 241, a leg bending link mechanism, 2411, a first link, 2412, a second link, 2413, an L-shaped link, 242, a shank leg bending electric push rod, 25, a thigh leg bending mechanism, 251, a first electric push rod, 252, a second electric push rod, 253, a third electric push rod, 254, a ball hinge seat, 255, a hooke hinge, 26, a notch, 27, a rotatable armrest, 3, a gap, a roller, 4, 5, a universal wheel, 6, a first fixed bed board, a second fixed bed board, a movable bed board, 16, a movable bed board, 16, a guardrail, a movable back board, a back board, Driving motor, 7, cylinder groove, 8, protruding cylinder.

Detailed Description

The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic views illustrating only the basic structure of the present invention in a schematic manner, and thus show only the constitution related to the present invention.

Fig. 1 to 9 show a detachable multifunctional nursing bed according to an embodiment of the present invention, which comprises a fixed bed body 1 and a movable wheelchair bed 2 detachably connected to the fixed bed body 1;

the movable wheelchair bed 2 comprises a contact plate 21 for contacting with a human body, a wheelchair bottom plate 22 for supporting the contact plate 21, and a back lifting mechanism 23, a leg bending mechanism and a side overturning mechanism which are arranged between the wheelchair bottom plate 22 and the contact plate 21;

the contact plate 21 comprises a back plate 211, a thigh plate 212, a shank plate 213 and a pedal plate 214 which are connected in turn through a rotating shaft;

the back lifting mechanism 23 comprises a back lifting support rod 232 with one end rotatably mounted on the wheelchair bottom plate 22 and the other end mounted on the back plate 211 through a back lifting wheel 231, and a back lifting electric push rod 233 with a fixed end hinged on the wheelchair bottom plate 22 and a telescopic end rotatably mounted on the back lifting support rod 232;

the leg bending mechanism comprises

The shank leg bending mechanism 24 comprises a leg bending connecting rod mechanism 241 symmetrically arranged on a rotating shaft which is rotatably connected with the leg plate 213 and the pedal plate 214, and a shank leg bending electric push rod 242 of which the fixed end is arranged on the leg bending connecting rod mechanism 241 and the telescopic end is fixedly connected with the rotating shaft which is used for rotatably connecting the leg plate 212 and the back plate 211;

the thigh leg bending mechanism 25 comprises a first electric push rod 251, a second electric push rod 252 and a third electric push rod 253, the fixed ends of which are hinged on the wheelchair bottom plate 22, and the telescopic ends of which are rotatably connected on the thigh plate 212; the first electric push rod 251 is disposed at the middle position of the thigh plate 212 close to the back plate 211, the second electric push rod 252 and the third electric push rod 253 are symmetrically disposed on the thigh plate 212 far from the back plate 211, wherein the second electric push rod 252 and the third electric push rod 253 are respectively disposed at the left and right sides of the thigh plate 212.

One end of the back lifting electric push rod 233 is fixed on the wheelchair bottom plate 22 of the cocoa mobile wheelchair bed 2 through a push rod support, the other end is hinged with the back lifting support rod 232 through a push rod joint, one end of the back lifting support rod 232 is connected with the bottom plate through a support rod support to realize reciprocating rotation, the other end is tightly attached to the back plate 211 through the back lifting wheel 231, and therefore the back plate 211 is driven to rotate by a certain angle, and the back lifting function of a patient is realized.

In this embodiment, the leg bending link mechanism 241 includes a first link 2411 having one end fixedly mounted on a rotating shaft for rotatably connecting the foot pedal 214 and the lower leg plate 213, an L-shaped link 2413 having one end rotatably connected to the first link 2411 and the other end rotatably connected to the fixed end of the first lower leg bending electric push rod 242, and a second link 2412 having one end fixedly mounted on the side of the lower leg plate 212 far from the patient and the other end rotatably connected to the vertex angle of the L-shaped link 2413.

In the rollover mechanism for rollover of the patient in this embodiment, the rollover of the patient is realized by using the three electric push rods, i.e., the first electric push rod 251, the second electric push rod 252 and the third electric push rod 253 of the thigh leg bending mechanism 25.

Referring to fig. 1 to 4, the fixed bed 1 includes a bed frame 11, a headboard 12 disposed at one end of the bed frame 11, a first fixed bed board 13 and a second fixed bed board 14 disposed opposite to the bed frame 11, and at least two movable bed boards 15 disposed opposite to the bed frame 11 and movably connected to the bed frame 11; the movable bed board 15 is positioned between the first fixed bed board 13 and the second fixed bed board 14, wherein a gap 3 for accommodating and installing the movable wheelchair bed 2 is arranged in the middle of the bed frame 11; the space 3 for installing the movable wheelchair bed 2 in the present embodiment is provided at a middle position of the frame 11, but is not limited to a middle position of the frame 11.

The gaps 3 sequentially penetrate between the two oppositely arranged first fixed bed boards 13, between the two movable bed boards 15 and between the two second fixed bed boards 14.

Cylindrical grooves 7 are formed in the side walls of the movable bed plate 15 and the second fixed bed plate 14 close to the gap 3, and protruding cylinders 8 matched and connected with the cylindrical grooves 7 are arranged on the side walls of the thigh plates 212 and the shank plates 213 close to the bed frame 11.

The cylindrical grooves on the side walls of the movable bed plate 15 and the second fixed bed plate 14 and the raised cylinders 8 on the side walls of the thigh plate 212 and the shank plate 213 can be regarded as cylindrical pairs, so that the wheelchair can be combined with and separated from the bed body.

In this embodiment, the bed frame 11 is provided with a gap 3 for accommodating the movable wheelchair bed 2 and the movement of the armrest of the wheelchair when the wheelchair turns on its side, the movable bed plate 15 is hinged to the first fixed bed plate 13 and the second fixed bed plate 14 through hinge pins, and can rotate at a certain angle, and the axial position of the movable bed plate is fixed through cotter pins. In this embodiment, the two sides of the frame 11 away from the gap 3 are provided with a guardrail 16, and the guardrail 16 is fixed by positioning holes provided on the frame 11. The first fixed bed plate 13 and the second fixed bed plate 14 are directly fitted to the frame 11, and fixed to each other by fixing a flat surface on the head board 12 and the bottom of the frame 11.

In this embodiment, the two adjacent plates included in the contact plate 21 are all fixedly connected by a pin, and the axial position is fixed by a cotter pin. In this embodiment, the two side walls of the thigh plate 212 close to the bed frame 11 are both provided with notches 26 for placing the rotatable wheelchair armrests 27, i.e. the left and right sides of the thigh plate 212 are provided with the rotatable wheelchair armrests 27, and after the movable wheelchair bed 2 is separated from the fixed bed body 1, the rotatable wheelchair armrests 27 are rotated, so as to enhance the safety of the patient.

The telescopic ends of the first electric push rod 251, the second electric push rod 252 and the third electric push rod 253 are rotatably connected with the back plate 211 through a spherical hinge seat 254; the fixed ends of the first electric push rod 251, the second electric push rod 252 and the third electric push rod 253 are rotatably connected with the wheelchair bottom plate 22 through Hooke's joints 255, the telescopic end of the lower leg bending electric push rod 242 is hinged with a pin shaft between the back plate 211 and the thigh plate 212, and the fixed ends of the lower leg bending electric push rod are hinged with the leg bending connecting rod mechanism 241.

The leg bending connecting rod mechanism 241 is connected with the thigh plate 212, the shank plate 213 and the pedal plate 214 to form a parallelogram mechanism, so that the pedal plate 214 can be kept parallel to the thigh plate 212 no matter how the thigh plate 212 and the shank plate 213 rotate, a patient can have comfortable sitting posture no matter the nursing bed bends legs in a bed mode or a wheelchair mode, secondary injury to the patient is avoided, and the high flexibility of the nursing bed meets different requirements of the patient.

Referring to fig. 7 to 9, the side-turning mechanism extends the first electric push rod 251, the second electric push rod 252 and the third electric push rod 253 according to a certain proportion, and rotates the whole bed plate of the movable wheelchair bed 2 around the central axis of one side of the cylindrical pair by means of the ball hinge seat 254, so as to achieve the effect of turning over.

The working principle of the separable multifunctional nursing bed of the invention is as follows:

before the separation state, the movable wheelchair bed 2 can be embedded into the gap 3 of the fixed bed body 1, and the movable wheelchair bed 2 and the fixed bed body 1 are combined into a whole through the matching of the cylindrical grooves on the side walls of the movable bed plate 15 and the second fixed bed plate 14 and the convex cylinders on the two side walls of the thigh plate 212 and the shank plate 213. After combination, the back lifting mechanism 23, the leg bending mechanism and the side turning mechanism are used for realizing the functions of back lifting, leg bending and body turning of the patient.

The extension and the shortening of the back lifting electric push rod 233 drive the back lifting support rod 232 to rotate around the support rod support, and the back lifting wheel 231 tightly attached to the back plate 211 at the tail end of the back lifting support rod 232 drives the back plate 211 to rotate for a certain angle around the pin shaft, so that the back lifting action of a patient is realized.

The first electric push rod 251, the second electric push rod 252 and the third electric push rod 253 are controlled to stretch according to a certain proportion, so that the thigh plate 212 can be controlled to rotate around a rotating shaft which is rotatably connected with the thigh plate 212 and the back plate 211, and the lifting of the thigh is realized; the two lower leg bending electric push rods 242 are controlled to stretch according to a certain proportion, and the lower leg plate 213 can be controlled to rotate around the pin shaft rotationally connected with the upper leg plate 212 and the lower leg plate 213, so that the lower legs can be lifted and placed; in this mode, the lower leg is limited, the bed board is completely overlapped with the bed frame 11 in a lying state, at this time, the two lower leg bending electric push rods 242 are continuously shortened, the bed board is blocked by the bed frame 11, and the limitation of the lower leg bending is realized.

When the user performs the side-turning function, taking the left side-turning as an example, the first electric push rod 251, the second electric push rod 252 and the third electric push rod 253 below the thigh plate 212 extend at a certain ratio, and the extension lengths of the first electric push rod 251 and the second electric push rod 252 are greater than the extension length of the third electric push rod 253, so that the entire bed plate rotates around the central axis of the left cylindrical pair, and the bed plate is lifted. The movable bed plate 15 of the right fixed bed body 1 is also driven to rotate around the central axis of the column pair on the right side of the bed plate, and the right side edge of the right movable bed plate 15 translates leftwards along the bed frame 11, thus realizing the left turning function. The right side turnover principle of the bed board is the same as the left side turnover principle.

In the process of side turning, the cylindrical groove edges on the movable bed plates 15 and the second fixed bed plate 14 on the two sides are respectively contacted with the cylindrical convex edges on the thigh plates 212 and the shank plates 213, so that the contact plate 21 is limited to be turned upwards continuously; in the process of the side-turning reset, when the first electric push rod 251, the second electric push rod 252 and the third electric push rod 253 are shortened to enable the side-turning contact plate 21 to completely contact the bedstead 11, the contact plate 21 is limited to be turned downwards continuously.

At least two idler wheels 4 and at least two universal wheels 5 are arranged on the wheelchair bottom plate 22, and at least two driving motors 6 for driving the idler wheels 4 are arranged on the bottom plate. After the movable wheelchair bed 2 is separated from the gap 3 of the fixed bed body 1, the self-moving of the movable wheelchair can be realized through the idler wheels 4 and the universal wheels 5 arranged below the wheelchair bottom plate 22, the function of conveying patients is realized, and meanwhile, the functions of back lifting and leg bending can be performed on the patients through the back lifting mechanism 23 and the leg bending mechanism.

The leg bending function in the wheelchair mode does not need to control the bending and stretching of the thigh, and the thigh plate 212 can be kept in a horizontal state all the time, namely the first electric push rod 251, the second electric push rod 252 and the third electric push rod 253 do not need to stretch, and the angle of the lower leg plate 213 relative to the thigh plate 212 is adjusted by controlling the stretching and stretching of the two lower leg bending electric push rods 242, so that the bending and stretching of the lower leg in the wheelchair mode is realized. The back lifting mechanism 23 is combined to realize the lying and sitting switching of the wheelchair, that is, the wheelchair is switched from the lying mode to the seat mode. The leg bending linkage 241 is connected with the thigh plate 212, the shank plate 213 and the foot pedal 214 to form a parallelogram mechanism, so that the parallel state of the thigh plate 212 and the foot pedal 214 is ensured, and the patient has comfortable sitting posture.

The above embodiments are provided to further explain the objects, technical solutions and advantages of the present invention in detail, it should be understood that the above embodiments are only examples of the present invention and are not intended to limit the present invention, and any modifications, equivalents, improvements and the like made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms indicating an orientation or positional relationship are based on the orientation or positional relationship shown in the drawings only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or the orientations or positional relationships that the products of the present invention are conventionally placed in use, and are only used for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. The "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner" and "outer" of the present invention are referred to in fig. 3. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.

Furthermore, the terms "horizontal", "vertical", "overhang" and the like do not imply that the components are required to be absolutely horizontal or overhang, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the present invention, unless otherwise expressly stated or limited, the first feature may be present on or under the second feature in direct contact with the first and second feature, or may be present in the first and second feature not in direct contact but in contact with another feature between them. Also, the first feature being above, on or above the second feature includes the first feature being directly above and obliquely above the second feature, or merely means that the first feature is at a higher level than the second feature. A first feature that underlies, and underlies a second feature includes a first feature that is directly under and obliquely under a second feature, or simply means that the first feature is at a lesser level than the second feature.