CN115778706A - Scalable removal medical nursing bed - Google Patents

Abstract

The invention relates to a telescopic movable medical nursing bed, belonging to the technical field of nursing beds, wherein a bed frame comprises a bed underframe and a telescopic frame, the telescopic frame is horizontally and telescopically arranged at the front end of the bed underframe, a linkage mechanism comprises a driving part, a gear rack mechanism and a link mechanism, the link mechanism at least comprises a first link part and a second link part, the driving part is in transmission connection with the gear rack mechanism, the gear rack mechanism is hinged with the first link part, the first link part is hinged with the front part of a bed plate, the driving part is hinged with the adjacent section of the bed plate close to the top of the bed underframe through the second link part, when the driving part drives the gear rack mechanism, the adjacent section of the bed plate is driven to move upwards through the second link part, meanwhile, the front part of the bed plate is driven to move upwards through the first link part, the telescopic frame is driven to extend out of the front part of the bed underframe, and the bed plate can be finally positioned in a horizontal position. The nursing bed has a compact and adjustable overall structure, can be used for quickly adjusting various postures of the nursing bed, and is convenient for transporting patients.

Description

Scalable removal medical nursing bed

Technical Field

The invention relates to the technical field of nursing beds, in particular to a telescopic movable medical nursing bed.

Background

A medical nursing bed (sickbed) is a tool for examining, diagnosing and nursing patients.

Most of the existing medical nursing beds (sickbeds) are generally fixed bed body frames, and the whole occupied space is not adjustable. Even if the nursing bed with the caster wheels is moved and replaced, a large turnover space is still needed, the more effective utilization of the field in a limited space is difficult to realize, and meanwhile, because the existing nursing bed has a single structure and function and poor maneuvering flexibility, the structure change of the nursing bed is difficult to realize quickly and compactly, other medical auxiliary tools have to be additionally borrowed when the patient is transported better, for example: the wheelchair and the stretcher are used for assisting in transporting the patient and the nursing personnel.

In the prior art, CN213607609U discloses a foldable and easily movable medical nursing bed, which comprises a fixing plate, a folding mechanism, a lifting mechanism and a plug, wherein the height of the first mounting plate and the height of the second mounting plate can be adjusted according to the needs of a user through the lifting mechanism. Although the bed board is driven to be turned up and inclined to change the lying posture in a manual or electric mode, the adjustment mode is complicated and time-consuming, the adjustment position is relatively single, and the convenient transportation of the patient care personnel is still difficult to realize.

Disclosure of Invention

The invention aims to provide a telescopic movable medical nursing bed which can be flexibly adjusted and changed from the whole structure, realize the synchronous change of a top bed plate, a bottom bed body and casters, save floor area and space as much as possible while providing various transfer postures for patients, and further realize the efficient, light and flexible transfer of the patients.

The technical scheme adopted by the invention for solving the technical problem is as follows: a telescopic movable medical nursing bed comprises a bed frame and a bed board, wherein the bed board is arranged on the bed frame, the bed frame comprises a bed underframe and a telescopic frame, the telescopic frame is horizontally and telescopically arranged at the front end of the bed underframe, and the bed board is of a folding structure;

still include the link gear, the link gear includes the driving piece, rack and pinion mechanism, link mechanism, wherein, link mechanism includes first connecting rod part and second connecting rod part at least, the driving piece is connected with rack and pinion mechanism transmission, rack and pinion mechanism is articulated with first connecting rod part, first connecting rod part is articulated with the front portion of bed board, the driving piece is articulated by the neighbouring section that second connecting rod part and bed board leaned on the bed chassis top, when driving piece drive rack and pinion mechanism, on the one hand, the neighbouring section that drives the bed board through the second connecting rod part shifts up, on the other hand, when shifting up through the front portion that first connecting rod part drove the bed board, still drive the expansion bracket and stretch out from the bed chassis front portion, and can make the bed board finally be in horizontal position.

Furthermore, the driving part is of a linear telescopic structure, a cylindrical gear is rotatably installed at the extending end of the driving part, a fixed rack fixedly installed on the bed bottom frame is meshed at the upper part of the cylindrical gear, a driven rack horizontally installed is meshed at the lower part of the cylindrical gear, and the driven rack is fixed on the telescopic frame.

Furthermore, the driving part is an electric push rod, a gear shaft perpendicular to the electric push rod is fixedly installed at the output end of the electric push rod, and a cylindrical gear is rotatably installed at the end part of the gear shaft.

Furthermore, the telescopic frame comprises a guide rod and a sliding pipe frame, the rack is fixed on the guide rod, one end of the guide rod is horizontally and slidably mounted on the bed bottom frame, the other end of the guide rod is downwards bent and then fixedly connected to the front end of the horizontally arranged sliding pipe frame, and the rear end of the sliding pipe frame is slidably mounted at the front end of the bottom of the bed bottom frame in a matched mode.

Furthermore, a pair of universal wheels with a braking function are respectively arranged at the bottom of the front end of the sliding pipe frame and the bottom of the rear end of the bed underframe.

Further, the bed plate comprises a plurality of backing plates, two adjacent backing plates are hinged with each other, and the three adjacent backing plates positioned at the front end of the bed plate are a first backing plate, a second backing plate and a third backing plate in sequence,

the bottom of the second backing plate is horizontally provided with a guide strip, the guide strip is provided with a strip hole along the length direction, a sliding column which is arranged in the strip hole in a sliding way is fixed on one end of a connecting plate, and the other end of the connecting plate is hinged to the bottom of the first backing plate; the guide strip is hinged with the end part of the first rod, the other end of the first rod is hinged with one end of the second rod, the other end of the second rod is hinged with a base plate fixed on the bed bottom frame through a third rod, and the middle part of the second rod is hinged to the bottom of the third base plate.

Furthermore, the second rod is in an inverted V-shaped structure, the second connecting rod component comprises a fourth rod, a linkage arm, a sliding rod and a rear supporting arm, wherein,

the bottom of the third base plate is hinged with the extending end of the driving piece through a fourth rod, the extending end is hinged with one end of a linkage arm, the other end of the linkage arm is hinged with a sliding rod, the sliding rod is slidably installed in a horizontally arranged guide pipe, the guide pipe is fixed on a bed bottom frame, the sliding rod is in sliding fit in the length direction of the guide pipe, and the sliding rod is hinged with a backrest of a bed plate through a rear support arm.

Furthermore, the first connecting rod component comprises an arm seat and a front supporting arm, the arm seat is fixedly connected with the driven rack, one end of the front supporting arm is hinged with the arm seat, and the other end of the front supporting arm is hinged with the connecting plate.

Furthermore, guardrails are further installed on two sides of the top of the bed bottom frame, and dining table plates are installed on the guardrails.

Further, one end of the driving piece is hinged on the bedstead.

The working principle adopted by the invention for solving the technical problems is as follows: the horizontal expansion of the bottom of the bed frame and the horizontal expansion and turnover of the front end of the bed board are automatically matched by driving the rack mechanism through one connecting rod part and driving the bed board to lean against the top of the bed frame through another connecting rod part, and the back support is driven to lift or release by driving the rear support arm when the driving part drives the second connecting rod part, so that the bed frame is horizontally expanded/stored, and the bed frame, the front end of the bed board and the back support are expanded/stored, and the back support are lifted/placed down.

The invention has the following remarkable effects:

1. the nursing bed mainly realizes the integral foldable telescopic design, the universal wheels (trundles) used for moving the nursing bed can be synchronously telescopic along with the bed board, the bed board which is folded can be pushed, transversely moved, parked and stopped, and moved and transported by an elevator in a sitting posture, and the bed posture can be conveniently shifted and adjusted under the condition of saving labor of personnel.

2. The bed body can be driven and controlled by safe direct current power to realize the stretching of the bed body and the transformation of the lying posture; the linkage mechanism is provided to operate by a self-powered power supply.

3. The effective utilization of the space of the site and the turnover of nursing personnel are increased, and the functions of placing, shifting and transferring personnel in a smaller space site are achieved.

4. The posture of the nursing bed can be adjusted in a linkage way only by being driven by one electric push rod, so that the bed body is changed from a common horizontal posture into a sitting posture or a multi-angle half-lying state.

5. Because the whole structure can be synchronously adjusted, the size is very compact, the occupied turnover space is smaller, and the device can be used in various medical and nursing occasions.

Drawings

Fig. 1 is a schematic diagram of the core structure of the present invention.

FIG. 2 is a schematic view of the overall structure of the present invention when deployed.

Fig. 3 is a partial structural schematic diagram of the present invention.

Fig. 4 is a schematic structural view of the present invention during storage.

In the figure: the bed comprises a bed frame a, a first connecting rod part b, a second connecting rod part c, a bed bottom frame 1, a guide rod 201, a sliding pipe frame 202, a sliding rod section 3, an output end 4, a driving part 5, a gear rack guard plate 6, a front caster brake 7, a rear caster brake 8, a universal wheel 9, a front support arm 10, a connecting plate 11, a third rod 12, a linkage arm 13, a backrest support arm 14, a backrest 15, a base plate 16 fixed on the bed bottom frame, a third base plate 17, a second base plate 18, a first base plate 19, a guardrail 20, a dining table plate 21, a central control power supply 22, an electric control handle 23, a fourth rod 24, a first rod 25, a second rod 26, a rear support arm 27, a fixed rack 28, a gear shaft 29, a cylindrical gear 30, a driven rack 31, an arm seat 32, a guide strip 33, a guide pipe 34 and a sliding rod 35.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the following will clearly and completely describe the technical solutions in the embodiments of the present invention, and it is obvious that the described embodiments are some embodiments of the present invention, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without inventive step, are within the scope of the present invention.

Referring to fig. 1, an embodiment of the present invention describes a telescopic movable medical nursing bed, which mainly comprises a bed frame a and a bed board, wherein the bed board is installed on the bed frame a, the bed frame a further specifically comprises a bed bottom frame 1 and a telescopic frame, the telescopic frame is horizontally and telescopically installed at the front end of the bed bottom frame 1 so as to extend out of the bed bottom frame 1, and the bed board is of a folding structure and can be partially folded together so as to form postures with different shapes. When specific preparation, this medical nursing bed of scalable removal still includes link gear, and this link gear is specific including again: the driving member 5 is connected with the rack and pinion mechanism in a transmission manner to drive a rack corresponding to the rack mechanism to move, the rack and pinion mechanism is further hinged with the first connecting rod member b, the first connecting rod member b is hinged with the front portion of the bed board, the driving member 5 is hinged with the adjacent section of the bed board close to the top of the bed bottom frame 1 through the second connecting rod member c, when the driving member 5 drives the rack and pinion mechanism, on one hand, the adjacent section of the bed board is driven to move upwards through the second connecting rod member c, on the other hand, the front portion of the bed board is driven to move upwards through the first connecting rod member b, and simultaneously, the telescopic frame is also driven to extend out from the front portion of the bed bottom frame 1, and the bed board can finally be in a horizontal position as shown in fig. 2.

As a specific embodiment, the driving member 5 is selected to be a linear telescopic structure, one end of the driving member 5 is preferably hinged on the bed frame a, the extended end of the driving member 5 is rotatably provided with a cylindrical gear 30, the upper part of the cylindrical gear 30 is engaged with a fixed rack 28 fixedly arranged on the bed bottom frame 1, the lower part is engaged with a driven rack 31 horizontally arranged, and the driven rack 31 is fixed on the telescopic frame to form a rack-and-pinion mechanism, when in specific manufacture, as shown in fig. 2, a rack-and-pinion guard plate 6 can be arranged on the outer side of the rack-and-pinion mechanism for protection, when the driving member 5 extends forwards, the cylindrical gear 30 is driven to roll forwards on the fixed rack 28, namely, when in the orientation shown in fig. 1, the driving member rolls towards the left side, thereby pushing the driven rack 31 forwards to push the front part of the bed board upwards. More specifically, the driving member 5 in this embodiment is selected as a dc type electric push rod, the output end 4 of the electric push rod is fixedly mounted with a gear shaft 29 perpendicular to the telescopic direction of the electric push rod, and the end of the gear shaft 29 is used for rotatably mounting the cylindrical gear 30, so that the cylindrical gear 30 is rotatably mounted.

In this embodiment, as shown in fig. 1-2, the telescopic frame may further be specifically made to include a guide rod 201 and a sliding pipe frame 202, the rack is fixed on the guide rod 201, and thus the rack can move together with the guide rod 201, one end of the guide rod 201 is horizontally slidably installed on the bed bottom frame 1, specifically, the sliding rod section 3 of the guide rod 201 where the one end is located may be a straight circular pipe, the other end of the guide rod 201 is bent downward and then is fixedly connected to the front end of the horizontally arranged sliding pipe frame 202, and the rear end of the sliding pipe frame 202 is installed at the front end of the bottom of the bed bottom frame 1 in a sliding fit manner, so that the whole telescopic frame can extend out of the bed bottom frame 1. Correspondingly, during assembly, a pair of universal wheels 9 with braking functions can be respectively installed at the bottom of the front end of the sliding pipe frame 202 and the bottom of the rear end of the bed underframe 1, when the telescopic frame needs to be moved in a telescopic mode, the braking function of the universal wheels 9 can be relieved, as shown in fig. 2, the front universal wheels 9 can be matched with the front caster brakes 7, the rear universal wheels 9 can be matched with the rear caster brakes 8, and the universal wheels 9 in the mode can be directly purchased in the market.

More specifically, the bed board includes a plurality of base plates, two adjacent base plates are hinged to each other, as shown in fig. 1-3, three adjacent base plates at the front end of the bed board are a first base plate 19, a second base plate 18 and a third base plate 17 in sequence, a guide strip 33 is horizontally installed at the bottom of the second base plate 18, a strip hole is formed in the guide strip 33 along the length direction, a slide column slidably installed in the strip hole is fixed to one end of a connecting plate 11, and the other end of the connecting plate 11 is hinged to the bottom of the first base plate 19. Meanwhile, the guide strip 33 of the present embodiment needs to be hinged to one end of the first rod 25, the other end of the first rod 25 is hinged to one end of the second rod 26, the other end of the second rod 26 is hinged to a cushion plate 16 fixed on the bed bottom frame 1 through the third rod 12, the cushion plate is fixed on the bed bottom frame 1 and is usually stationary, and the middle part of the second rod 26 is hinged to the bottom of the third cushion plate 17, so as to form a folding type structure of the bed board. In practice, this second bar 26 is preferably formed in an inverted V-shaped configuration, the top end of which is hinged to the bottom of the third pad 17. In addition, with continued reference to fig. 1-3, the aforementioned second link member c is preferably constructed to be mounted as follows, and mainly includes a fourth rod 24, the linkage arm 13, a slide rod 35 and a rear support arm 27. Specifically, the bottom of the third backing plate 17 is hinged to the extending end of the driving element 5 through a fourth rod 24, the extending end is further hinged to one end of a linkage arm 13, the other end of the linkage arm 13 is hinged to a sliding rod 35, the sliding rod 35 is slidably mounted in a horizontally arranged guide tube 34, the sliding rod 35 can be a rectangular tube matched with the guide tube 34, the guide tube 34 is fixed on the bed underframe 1, one end of the sliding rod 35 extends out of the rectangular tube towards the rear side in a sliding fit mode, the sliding rod 35 is ensured to be in sliding fit in the length direction of the guide tube 34, and the sliding rod 35 is hinged to the backrest of the bed plate through a rear supporting arm 27 so as to lift up or put down the backrest 15. For protection and support lifting, a right-angled triangular prism shaped inverted back support arm 14 may be adapted to cover the outer wall of the rear support arm 27.

With continued reference to fig. 1-3, as a more preferable implementation structure, in this embodiment, the first connecting rod component b may specifically include an arm seat 32 and a front support arm 10, the arm seat 32 is fixedly connected to the driven rack 31, and may be indirectly fixedly connected through a series of auxiliary members, one end of the front support arm 10 is hinged to the arm seat 32, and the other end is hinged to the connecting plate 11, so as to drive the front support arm 10 to swing when the driven rack 31 moves forward, thereby achieving the two position states shown in fig. 2 and 4 when the front end of the bed board is lifted or released. Correspondingly, guardrails 20 are further installed on two sides of the top of the bed bottom frame 1 of the nursing bed, and a dining table plate 21 is installed on the guardrails 20 so that a patient can eat or take medicine.

Based on the above implementation structure, the telescopic movable medical nursing bed can further improve the structure and improve the convenience, as shown in fig. 2, a central control power supply 22 is installed at the lower part of the rear end of the bed frame a and used for supplying power to the nursing bed during posture adjustment, and an electric control handle 23 corresponding to the central control power supply is installed on the side surface of the bed frame a, so that a patient can directly operate the nursing bed and flexibly change the posture of the nursing bed. The skilled person, based on existing automatic control techniques, can easily realize that all the casters 9 (casters) are in a braking state when the nursing bed is in a parking state. After the front caster brake 7 is loosened, a power switch of the electric control handle 23 is turned on, a contraction or expansion button on the electric control handle 23 can be inching, when the bed body target posture is reached, the power is turned off, the posture of the nursing bed is self-locked, when the front and rear wheel foot brakes are loosened again, the nursing bed is pushed to move, the brake is stopped again, the operation of bed body expansion, posture adjustment and pushing movement can be well completed through the circulation operation, and the operation is very convenient.

By utilizing the prior control technology and combining the structure of the nursing bed, the linkage of the turning-up, folding and stretching of the bed board and the stretching of the bed frame a can be well realized under the driving of the direct current push rod of the single power unit, the posture of the bed body is changed, and the change from the lying posture to the multi-angle lying posture, such as sitting posture or reverse change, is realized. The adjustment of the displacement of the horizontal extension of the bed frame a can be realized by applying a gear rack mechanism, and the displacement is 2 times of the horizontal displacement of the power rod for driving the extension of the bed board, so that the extension of the bed frame a is matched with the folding extension of the bed board, a front fulcrum in the extension process of the bed board is provided, front casters extend out in a following manner when the bed body is in a flattening state, and the bed board is supported in a balanced and stable manner. According to the size requirement of the current nursing bed, the maximum width of the nursing bed can be made to be 900mm, the width of the bed board can be 825mm, the specification requirement of the medical nursing bed is met, the maximum length (sitting posture) of the bed body after contraction is 1200mm, the height is 1200mm, the requirement of ergonomics is met, the pushing is convenient, and the pushing and moving requirements of places such as channels, elevators and rooms in the medical care industry are met.

The single power unit is adopted for driving, the linkage of the telescopic frame and the mechanism for folding and stretching the bed board and turning up and flattening the bed backrest 15 is completed, and the bed body is changed from a common horizontal posture to a sitting posture or a multi-angle half lying state. A linkage mechanism with multiple hinged points and linked turnover is adopted and comprises two connecting rod parts, so that the turnover of a bed board is realized, the conversion from a horizontal state to a sitting posture pedal state is realized, and the posture can be reversed.

The telescopic movable medical nursing bed adopts a multi-fulcrum hinged connecting rod mechanism matched with the sliding groove, realizes the linkage of the telescopic frame and the front universal wheel 9 with the front end of the bed plate, and achieves the folding, overturning and stretching of the leg bed plate (corresponding backing plate); the support formed by the front universal wheel 9, the front support arm 10 and the arm seat 32 is linked with the folding and turning of the bed board to form a stable telescopic support state. And a rack and pinion mechanism is adopted, the upper fixed rack 28 can be fixedly connected with the bedstead a through a rack mounting plate, the lower driven rack 31 is connected with a telescopic frame transmission guide rod, a gear is provided with horizontal linear displacement by a power unit (a direct current push rod) to drive the lower rack to stretch and contract, and the telescopic frame and the front part are driven to turn, fold and stretch, so that the servo telescopic front support is realized. The link mechanism in this embodiment obtains the same power source as the power source for the turning and horizontal movement of the bed plate and the linear displacement amount matched with the power source through the driving member 5, and can realize the turning, lifting and falling of the backrest at 0-65 degrees and the linkage with the stretching and turning of the front end of the bed plate. The pair of guide rods 201 are connected with the bedstead a in a sliding way to form a 4-rod parallel frame telescopic structure, the integral rigidity of the telescopic frame is increased, the synchronous braking and the brake releasing of the front caster wheel and the rear caster wheel can be realized through the braking rods of the front universal wheel and the rear universal wheel 9, and the patient can be pushed, shifted and transferred conveniently.

The above embodiments are further described in detail for the purpose of illustrating the invention, and it should be understood that the above embodiments are only for illustrating the invention and are not to be construed as limiting the invention, and any modifications, equivalent substitutions, improvements and the like made within the spirit of the invention shall be included within the scope of the invention.

Claims (10)

1. The utility model provides a medical nursing bed of scalable removal, includes bedstead (a) and bed board, and the bed board is installed on bedstead (a), its characterized in that: the bed frame (a) comprises a bed underframe (1) and an expansion bracket, the expansion bracket is horizontally and telescopically arranged at the front end of the bed underframe (1), and the bed plate is of a folding structure;

still include link gear, link gear includes driving piece (5), rack and pinion mechanism, link mechanism, wherein, link mechanism includes first link part (b) and second link part (c) at least, driving piece (5) are connected with rack and pinion mechanism transmission, rack and pinion mechanism with first link part (b) are articulated, first link part (b) with the front portion of bed board is articulated, and driving piece (5) pass through second link part (c) with the bed board leans on the adjacent section at bed chassis (1) top to articulate, when driving piece (5) drive rack and pinion mechanism, on the one hand, drive the bed board through second link part (c) adjacent section shifts up, and on the other hand, when the front portion that drives the bed board through first link part (b) shifts up, still takes the expansion bracket stretches out from bed chassis (1) front portion to can make the bed board finally be in horizontal position.

2. The telescopic mobile medical care bed according to claim 1, characterized in that: the bed is characterized in that the driving part (5) is of a linear telescopic structure, a cylindrical gear (30) is rotatably mounted at the extending end of the driving part (5), a fixed rack (28) fixedly mounted on the bed bottom frame (1) is meshed at the upper part of the cylindrical gear (30), a driven rack (31) horizontally mounted is meshed at the lower part of the cylindrical gear, and the driven rack (31) is fixed on the telescopic frame.

3. The telescopic mobile medical care bed according to claim 2, characterized in that: the driving piece (5) is an electric push rod, a gear shaft (29) perpendicular to the electric push rod is fixedly installed at the output end (4) of the electric push rod, and the cylindrical gear (30) is rotatably installed at the end portion of the gear shaft (29).

4. The telescopically movable medical care bed according to claim 2 or 3, wherein: the expansion bracket includes guide bar (201) and slip pipe support (202), the rack is fixed on guide bar (201), install guide bar (201) one end horizontal slip on bed chassis (1), the front end of the rigid coupling in the slip pipe support (202) that the level set up after its other end is crooked down, install the rear end sliding fit of slip pipe support (202) the bottom front end of bed chassis (1).

5. The telescopic mobile medical care bed according to claim 4, characterized in that: the front end bottom of slip pipe support (202), and the rear end bottom of bed chassis (1), respectively install a pair of universal wheel (9) of taking brake function.

6. The telescopically movable medical care bed according to claim 2 or 3, wherein: the bed plate comprises a plurality of backing plates, two adjacent backing plates are hinged with each other, and three adjacent backing plates positioned at the front end of the bed plate are a first backing plate (19), a second backing plate (18) and a third backing plate (17) in sequence,

a guide strip (33) is horizontally arranged at the bottom of the second base plate (18), a strip hole is formed in the guide strip (33) along the length direction, a sliding column which is arranged in the strip hole in a sliding mode is fixed to one end of a connecting plate (11), and the other end of the connecting plate (11) is hinged to the bottom of the first base plate (19); the utility model discloses a bed, including bed frame (1), guide bar (33), second pole (26), first pole (25), second pole (26) and second pole (26), the tip of gib block (33) and first pole (25) is articulated, and the other end of first pole (25) is articulated with the one end of second pole (26), the other end of second pole (26) pass through third pole (12) with a backing plate of fixing is articulated on bed frame (1), just second pole (26) middle part articulates in third backing plate (17) bottom.

7. The telescopic mobile medical care bed according to claim 6, characterized in that: the second rod (26) is in an inverted V-shaped structure, the second connecting rod part (c) comprises a fourth rod (24), a linkage arm (13), a sliding rod (35) and a rear supporting arm (27), wherein,

third backing plate (17) bottom is passed through fourth rod (24) with stretching out of driving piece (5) end articulated, just it still articulates to stretch out the end the one end of linkage arm (13), the other end of linkage arm (13) is articulated slide bar (35), slide bar (35) slidable mounting is in stand pipe (34) that a level set up, stand pipe (34) are fixed in on bed chassis (1), and slide bar (35) sliding fit on the length direction of stand pipe (34), slide bar (35) pass through back support arm (27) with back (15) of bed board are articulated.

8. The telescopically movable medical care bed according to claim 6, wherein: the first connecting rod component (b) comprises an arm seat (32) and a front supporting arm (10), the arm seat (32) is fixedly connected with the driven rack (31), one end of the front supporting arm (10) is hinged to the arm seat (32), and the other end of the front supporting arm is hinged to the connecting plate (11).

9. The telescopically movable medical care bed according to claim 1, 2, 5, 7 or 8, wherein: guard rails (20) are further installed on two sides of the top of the bed bottom frame (1), and dining table plates (21) are installed on the guard rails (20).

10. The telescopic mobile medical care bed according to claim 1, 2, 5, 7 or 8, characterized in that: one end of the driving piece (5) is hinged on the bedstead (a).

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