CN213641685U

CN213641685U - Medical bed

Info

Publication number: CN213641685U
Application number: CN202021185544.7U
Authority: CN
Inventors: 刘小平
Original assignee: Hangzhou Dunli Medical Equipment Co ltd; Dunli Group Co ltd
Current assignee: Hangzhou Dunli Medical Equipment Co ltd; Dunli Group Co ltd
Priority date: 2020-06-23
Filing date: 2020-06-23
Publication date: 2021-07-09
Anticipated expiration: 2030-06-23

Abstract

The utility model relates to the field of medical care equipment, in particular to a medical bed, wherein a bed head frame and a bed tail frame both comprise an adjusting frame at the upper part and a supporting frame at the lower part of the adjusting frame; the adjusting frame is connected with the bed frame, a lifting device is connected between the adjusting frame and the fixing frame, a first mounting seat used for being connected with one end of the lifting device is arranged on the adjusting frame, and a second mounting seat used for being connected with the other end of the lifting device is arranged on the fixing frame; the two ends of the driving adjusting seat are correspondingly arranged on the first mounting seat and the second mounting seat respectively, and when the lifting device works, the lifting device drives the adjusting frame to move up and down along the fixing frame and simultaneously drives the bed frame to move up and down. The medical bed has the advantages of tidy appearance, simple and reliable control, various functions and the like.

Description

Medical bed

Technical Field

The utility model relates to a medical equipment field has especially related to medical bed.

Background

Medical beds are also called sickbeds, nursing beds and the like, are used when patients are in rest, and are mainly used in various hospitals, village and town health hospitals, community health service centers, families and the like. According to the material, the sickbed can be divided into ABS sickbeds, all-stainless steel sickbeds, semi-stainless steel sickbeds, all-steel plastic-spraying sickbeds and the like. According to the usage, the hospital bed can be divided into a medical hospital bed and a household hospital bed. According to the function, the sickbed can be divided into an electric sickbed and a manual sickbed, wherein the electric sickbed can be divided into a multifunctional electric sickbed, a three-functional electric sickbed and the like, and the manual sickbed can be divided into a double-rocking sickbed, a single-rocking sickbed and a flat sickbed. Hospital beds have a variety of functions, such as: a back-up function; the back of the cared person can be slowly lifted upwards along with the bed backboard, and the back of the cared person can be adjusted to the optimal posture at will between 0 and 72 degrees. A folding anti-sliding function; with the function of back lifting, the back bed board is lifted up from 0 degree to 30 degrees, meanwhile, the supporting board from the hip to the knee joint of the nursed is lifted up by about 12 degrees and keeps unchanged when the back bed board is continuously lifted up, and the human body is prevented from sliding down to the tail of the bed. For example, chinese patent CN201811319199.9 discloses a medical bed, but the weight of the bed is heavy, and the main feature of the bed is that some auxiliary functions are added.

The medical bed of the prior art has the following defects that firstly, the back frame and the knee frame are driven by two independent driving mechanisms, and the structure has the defects of more parts and complex driving; and traditional elevation structure all designs the lift drive part in the downside and exposes externally, and this kind of structural design security is poor, and driving motor portion life is short, and the outward appearance is shortcoming such as pleasing to the eye inadequately moreover.

SUMMERY OF THE UTILITY MODEL

The utility model designs a novel medical bed aiming at the defects existing in the prior art.

In order to solve the technical problem, the utility model discloses a following technical scheme can solve:

the medical bed comprises a bed frame in the middle, and a bed head frame and a bed tail frame which are positioned at two ends of the bed frame, wherein the bed head frame and the bed tail frame respectively comprise an adjusting frame at the upper part and a supporting frame at the lower part of the adjusting frame; the adjusting frame is fixedly connected with the bed frame, a lifting device is connected between the adjusting frame and the fixing frame, a first mounting seat used for being connected with one end of the lifting device is arranged on the adjusting frame, and a second mounting seat used for being connected with the other end of the lifting device is arranged on the fixing frame; the two ends of the driving adjusting seat are correspondingly arranged on the first mounting seat and the second mounting seat respectively, and when the lifting device works, the lifting device drives the adjusting frame to move up and down along the fixing frame through driving the adjusting frame to move up and down.

Preferably, the lifting device is a linear actuator arranged in the vertical direction, the working end of the linear actuator is connected with the first mounting seat, the fixed end of the linear actuator is connected with the second mounting seat, when the linear actuator works, the working end of the linear actuator works on the support frame, and the support frame gives a reaction force to the linear actuator to drive the adjusting frame and the bed frame to move upwards.

Preferably, the linear actuating mechanism is an electric push rod, the electric push rod comprises a motor part and a push rod part connected with the motor part, the motor part is arranged at one end of the push rod part, and the motor part can drive the push rod part to extend and retract; the motor end of the electric push rod is a fixed end and is arranged on the first mounting seat, and the extensible push rod part end of the electric push rod is a working end and is arranged on the second mounting seat.

Preferably, the end face of the fixed end of the linear actuator is provided with a connecting lug, the first mounting seat is provided with a mounting plate, the mounting plate is provided with a connecting hole, and the connecting lug is connected with the mounting plate through a pin shaft; the second mounting seat is provided with an ear seat, and the working end of the linear actuating mechanism is connected with the ear seat through a pin shaft; only a supporting seat is arranged on the first mounting seat, and the fixed end of the linear actuating mechanism is arranged on the supporting seat.

Preferably, a first panel is covered on the outer side of the adjusting frame, a second panel is arranged on the rear side of the adjusting frame, a transverse mounting frame is further arranged on the adjusting frame, and the first panel and the second panel are fixedly mounted on the front side and the rear side of the mounting frame; the fixed end of the lifting device and the first mounting seat are located between the first panel and the second panel, and the working end of the linear driving mechanism penetrates through the mounting frame to be connected with the second mounting seat.

As preferred, the support frame includes that outside whole is the frame of U type, and first mount pad includes base and the connecting rod with frame fixed connection, the horizontal pole part parallel arrangement of base and frame, the one end and the base fixed connection of connecting rod, the other end and the frame fixed connection of connecting rod.

Preferably, the number of the connecting rods is at least 2, and the base, the two connecting rods close to the left side and the right side of the frame and the upper cross rod part of the frame form a trapezoid.

Preferably, the support frame is provided with guide rods, the adjusting frame is provided with guide sleeves, the guide sleeves are inserted in the guide rods, the adjusting frame can move up and down along the guide rods through the guide sleeves, the number of the guide rods is at least two, the adjusting frame further comprises reinforcing frame reinforcing frames, the reinforcing frame reinforcing frames are arranged between the guide rods, and two ends of each reinforcing frame are respectively fixedly connected with the guide rods; the support frame is provided with a second mounting seat used for being connected with one end of the lifting device, the second mounting seat is located on the lower side of the reinforcing frame, and a channel used for the lifting device to penetrate through is formed in the reinforcing frame.

Preferably, the bed frame comprises a backrest frame for supporting the back and a knee bracket for supporting the knee; the backrest frame and the knee support are hinged with the bed frame; the bed frame is also provided with a first rotating shaft and a second rotating shaft, the first rotating shaft is connected with the backrest frame through a first connecting rod mechanism, and when the first rotating shaft rotates, the backrest frame is driven to rotate around the bed frame through the first connecting rod mechanism to realize the lifting and falling of the bed frame; the first rotating shaft is connected with the knee bracket through a second connecting rod mechanism, and when the second rotating shaft rotates, the knee bracket is driven to rotate around the bed frame through the second connecting rod mechanism to realize the lifting and the falling of the bed frame; the ship-shaped motor is characterized by also comprising a ship-shaped motor, wherein one of two output ends of the ship-shaped motor is connected with the first rotating shaft to drive the first rotating shaft to rotate, and the other output end of the ship-shaped motor is connected with the second rotating shaft to drive the second rotating shaft to rotate; the backrest frame and the knee support form a horizontal support surface when completely laid flat.

Preferably, four corners of the bed frame are provided with clamping plates, the clamping plates are provided with clamping ports with downward inlets, positioning shafts are fixedly arranged on the left supporting leg and the right supporting leg of the adjusting frame, the clamping ports are movably clamped on the positioning shafts, and the bed frame is connected with the bed head frame and the bed tail frame through the clamping connection of the clamping ports and the positioning shafts; when the lifting heights of the bed head frame and the bed tail frame are different, the bed frame can rotate around the positioning shaft through the bayonet to incline at a certain angle.

The utility model discloses owing to adopted above technical scheme, have apparent technological effect: at first choose the ship type motor for use to drive two rotations, this kind of driving method has simple structure, and spare part uses advantage such as less, and the outward appearance of the bed body has been optimized in this kind of design, makes bed body outward appearance succinct more. The design of creativity simultaneously installs lifting unit in the inside of headboard and tailstock board, makes the driven lifting unit of bed body appearance can not see, makes the bed body outward appearance more succinct simultaneously, has avoided the exposed potential safety hazard that brings of lifting unit and the harm that the environment led to the fact to it, has prolonged its life, and the advantage that adopts electric putter still lies in that occupation space is little, and control is convenient simple, and is cleaner in the use, the noise is littleer. The bed body can be lifted at a single head, so that the bed body is in an inclined state and is suitable for different placing environments; meanwhile, the bed frame, the bed head frame and the bed tail frame are of detachable structures, so that the bed frame is more convenient to transport.

And the scheme that adopts ship type motor and push rod motor cooperation to use in this scheme belongs to the initiative at home, and the combination of this kind of drive mode has spare part and uses fewly, controls simple and convenient advantage.

Meanwhile, the plate bed surface is popular in the market at present, and the iron pipe is adopted to lay the bed surface, so that the design has stronger bearing capacity and is safer.

Drawings

FIG. 1 is a schematic view of the overall structure of the bed.

Fig. 2 is a partially enlarged view of fig. 1.

Fig. 3 is a schematic structural view of the bed tail frame without the first panel and the second panel.

Fig. 4 is a partially enlarged view of fig. 3.

Fig. 5 is a bottom perspective view of fig. 3 from a lower perspective.

Fig. 6 is a state view in which the frame head frame, the tailstock, the backrest frame, and the knee support are supported.

FIG. 7 is a schematic structural view of embodiment 3 with a reinforcing frame.

The names of the parts indicated by the numerical references in the drawings are as follows: 1-bed frame, 2-bed head frame, 3-bed tail frame, 4-adjusting frame, 5-supporting frame, 6-lifting device, 7-first mounting seat, 71-base, 10-second mounting seat, 11-working end, 12-fixed end, 13-linear actuator, 14-motor part, 15-push rod part, 16-connecting lug, 17-mounting plate, 19-lug seat, 20-supporting seat, 21-first panel, 22-second panel, 23-mounting frame, 24-cross rod, 25-vertical rod, 26-connecting rod, 27-guide rod, 28-guide sleeve, 29-reinforcing frame, 30-first connecting rod mechanism, 31-second connecting rod mechanism, 32-ship type motor, 33-first rotating shaft, 34-second rotating shaft, 35-clamping plate, 36-clamping opening, 37-positioning shaft, 40-backrest frame and 41-knee support.

Detailed Description

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

Example 1

As shown in fig. 1 to 6, the medical bed comprises a middle bed frame 1, and a head frame 2 and a tail frame 3 which are arranged at two ends of the bed frame 1, wherein the head frame 2 and the tail frame 3 both comprise an upper adjusting frame 4 and a supporting frame 5 at the lower part of the adjusting frame 4; the adjusting frame 4 and the bed frame 1 are detachably connected, and the lifting devices 6 are connected between the adjusting frame 4 and the fixing frame of the bed head frame 2 and the bed tail frame 3, namely the lifting devices 6 of the bed head frame 2 and the bed tail frame 3 have the same structure.

A first mounting seat 7 used for being connected with one end of the lifting device 6 is arranged on the adjusting frame 4, and a second mounting seat 10 used for being connected with the other end of the lifting device 6 is arranged on the fixing frame; the two ends of the driving adjusting seat are correspondingly arranged on the first mounting seat 7 and the second mounting seat 10 respectively, and when the lifting device 6 works, the lifting device 6 drives the bed frame 1 to move up and down by driving the adjusting frame 4 to move up and down along the fixing frame. The frame of the adjusting bracket 4 in this embodiment is a U-shaped frame formed by bending a pipe fitting.

The lifting device 6 is a linear actuator 13 arranged in the vertical direction, a working end 11 of the linear actuator 13 is connected with the first mounting seat 7, a fixed end 12 of the linear actuator 13 is connected with the second mounting seat 10, when the linear actuator 13 works, the working end 11 of the linear actuator 13 works on the support frame 5, the support frame 5 gives a reaction force to the linear actuator 13, and the adjusting frame 4 and the bed frame 1 are driven to move upwards.

In this embodiment, the linear actuator 13 is an electric push rod, which is also called a linear actuator, and is a novel linear actuator 13 mainly composed of a push rod part 15 of a motor part 14, a control device and other mechanisms. The electric push rod comprises a motor part 14 and a push rod part 15 connected with the motor part 14, wherein the end of the motor part 14 is a fixed end 12, and the extending and contracting end of the push rod part 15 is a working end 11. The motor part 14 is arranged at one end of the push rod part 15, and the motor part 14 can drive the push rod part 15 to extend and retract; the motor part 14 end of the electric push rod is a fixed end 12 and is arranged on the first mounting seat 7, and the extensible push rod part 15 end of the electric push rod is a working end 11 and is arranged on the second mounting seat 10.

Preferably, a connecting lug 16 is arranged on the end face of the fixed end 12 of the linear actuator 13, a mounting plate 17 is arranged on the first mounting seat 7, a connecting hole is formed in the mounting plate 17, and the connecting lug 16 is connected with the mounting plate 17 through a pin shaft; the second mounting seat 10 is provided with an ear seat 19, and the working end 11 of the linear actuator 13 is connected with the ear seat 19 through a pin shaft; still be provided with supporting seat 20 on first mount pad 7, the stiff end 12 of sharp actuating mechanism 13 is sat and is established on supporting seat 20, and supporting seat 20 is the U template in this embodiment, the both ends and the first mount pad 7 fixed connection of U template, and supporting seat 20 is arranged in supporting electric putter well motor portion 14.

In order to make the overall appearance of the medical bed more beautiful and concise; the outer side of the adjusting frame 4 is covered with a first panel 21, the rear side of the adjusting frame 4 is provided with a second panel 22, and the front end surface and the rear end surface of the first panel 21, the second panel 22 and the frame of the adjusting frame 4 are flush and level to form a roughly closed chamber; the adjusting frame 4 is further provided with a transverse mounting frame 23, and the first panel 21 and the second panel 22 are fixedly mounted on the front side and the rear side of the mounting frame 23; the fixed end 12 of the lifting device 6 and the first mounting seat 7 are located between the first panel 21 and the second panel 22, and the working end 11 of the linear driving mechanism passes through the mounting frame 23 to be connected with the second mounting seat 10. The mounting frame 23 is a U-shaped pipe, the opening of the mounting frame 23 faces upwards, and the front side and the rear side of the mounting frame 23 are used as fixing surfaces for mounting the first panel 21 and the second panel 22; a through hole is formed in the middle of the mounting bracket 23, and the push rod part 15 can be mounted on the second mounting base 10 through the through hole.

The support frame 5 comprises an external frame which is integrally U-shaped, and comprises vertical rods 25 which are vertically arranged at the left side and the right side and a cross rod 24 which is horizontally arranged at the upper part; the first mounting seat 7 comprises a base 71 and a connecting rod 26 fixedly connected with the frame, and the mounting plate 17 and the supporting seat 20 are fixedly arranged on the lower end face of the base 71. The base 71 and the cross bar 24 of the frame are arranged in parallel, one end of the connecting rod 26 is fixedly connected with the base 71, and the other end of the connecting rod 26 is fixedly connected with the frame.

In the embodiment, the number of the connecting rods 26 is 2, and one end of each connecting rod 26 is fixedly connected with the cross rod 24 of the frame of the support frame 5; the base 71, the connecting rods 26 and the upper cross bar 24 portion of the frame enclose an isosceles trapezoid.

In order to realize the stable movement of the support frame 5, a guide rod 27 is arranged on the support frame 5, a guide sleeve 28 is arranged on the adjusting frame 4, and the guide sleeve 28 is arranged in a vertical rod 25 of the adjusting frame 4; the guide sleeve 28 is inserted into the guide rod 27, and the adjusting bracket 4 can move up and down along the guide rod 27 through the guide sleeve 28, in this embodiment, two guide rods 27 are respectively arranged corresponding to the guide sleeve 28 one by one.

In the present embodiment, the bed frame 1 is provided with a backrest frame 40 for supporting the back and a knee support 41 for supporting the knee; the backrest frame 40 and the knee bracket 41 are both hinged with the bed frame 1; the bed frame 1 is also provided with a first rotating shaft 33 and a second rotating shaft 34, the first rotating shaft 33 is connected with the back rest frame 40 through a first connecting rod mechanism 30, and when the first rotating shaft 33 rotates, the back rest frame 40 is driven to rotate around the bed frame 1 through the first connecting rod mechanism 30 to realize the lifting and falling of the bed frame 1; the first rotating shaft 33 and the knee bracket 41 are connected through the second link mechanism 31, and when the second rotating shaft 34 rotates, the knee bracket 41 is driven to rotate around the bed frame 1 through the second link mechanism 31 to realize the lifting and the falling of the bed frame 1; the device also comprises a ship-shaped motor 32, wherein one of two output ends of the ship-shaped motor 32 is connected with the first rotating shaft 33 to drive the first rotating shaft 33 to rotate, and the other output end of the ship-shaped motor 32 is connected with the second rotating shaft 34 to drive the second rotating shaft 34 to rotate. The first link mechanism 30 includes a first link 301 and a second link 302 hinged to the first link 301, the other end of the first link 301 is hinged to the backrest frame 40, the other end of the second link 302 is fixedly connected to the first rotating shaft 33, the first rotating shaft 33 rotates to drive the second link 302 to rotate, the second link 302 rotates to drive the first link 301 and the backrest frame 40 to move, and the backrest frame 40 rotates around the bed frame 1 to realize support or descent. The backrest frame 40 and the knee brace 41 in this embodiment form a horizontal support surface when fully laid flat.

In order to realize the inclination function of the bed panel, four corners of the bed frame 1 are respectively provided with a clamping plate 35, the clamping plates 35 are provided with bayonets 36 with downward inlets, the left leg and the right leg of the adjusting frame 4 are respectively and fixedly provided with a positioning shaft 37, the bayonets 36 are movably clamped on the positioning shafts 37, and the bed frame 1 is connected with the bed head frame 2 and the bed tail frame 3 through the clamping connection of the bayonets 36 and the positioning shafts 37; when the bed head frame 2 and the bed tail frame 3 are different in lifting height, the bed frame 1 can be inclined at a certain angle by rotating around the positioning shaft 37 through the bayonet 36. In this embodiment, each of the clamping plates 35 is provided with two bayonets 36, the two bayonets 36 are located on the same vertical axis, and the number and the position of the positioning shafts 37 correspond to the bayonets 36 one by one. In the embodiment, the positioning shaft 37 is fixedly installed on the vertical rod 25 of the adjusting frame 4 of the head frame 2 and the adjusting frame 4 of the tail frame 3. The support surfaces of the backup frame 40 and the knee bracket 41 in this embodiment are formed by laying pipe members.

During operation, the backrest frame 40 and the knee support 41 can be controlled to be lifted independently as required, and only the bed motor 14 needs to be controlled. When the bed body needs to be inclined, for example, the bed body is inclined downwards, the bed body can be placed under different conditions, for example, the bed body is placed on uneven ground, only the electric push rod of the headstock 2 and the electric push rod of the tailstock 3 need to be controlled, and the height of the headstock 2 is larger than that of the tailstock 3.

Example 2

This embodiment is different from embodiment 1 in that: the number of the first connecting rods 301 and the second connecting rods 302 is two, and the two second connecting rods 302 are connected through a supporting rod to keep the stability of the connecting rod mechanism.

Example 3

As shown in fig. 7, the difference from embodiment 1 is that: the guide rod 27 of the embodiment further comprises a reinforcing frame 29, and two ends of the reinforcing frame 29 are respectively fixedly connected with the guide rod 27; the support frame 5 is provided with a second mounting seat 10 used for being connected with one end of the lifting device 6, the second mounting seat 10 is located on the lower side of the reinforcing frame 29, a channel used for the lifting device 6 to penetrate is formed in the reinforcing frame 29, the reinforcing frame 29 can play a role in keeping the guide shaft stable and stable, and the guide shaft is prevented from inclining and the like.

Claims

1. Medical bed, including middle bed frame (1) and headstock (2), tailstock (3) that are located bed frame (1) both ends respectively, its characterized in that: the bed head frame (2) and the bed tail frame (3) both comprise an adjusting frame (4) at the upper part and a supporting frame (5) at the lower part of the adjusting frame (4); the adjusting frame (4) is connected with the bed frame (1), a lifting device (6) is connected between the adjusting frame (4) and the fixing frame, a first mounting seat (7) used for being connected with one end of the lifting device (6) is arranged on the adjusting frame (4), and a second mounting seat (10) used for being connected with the other end of the lifting device (6) is arranged on the fixing frame; the two ends of the driving adjusting seat are correspondingly arranged on the first mounting seat (7) and the second mounting seat (10) respectively, and when the lifting device (6) works, the lifting device (6) drives the adjusting frame (4) to move up and down along the fixing frame and simultaneously drives the bed frame (1) to move up and down.

2. The medical bed of claim 1, wherein: elevating gear (6) is for being sharp actuating mechanism (13) that vertical direction set up, work end (11) and first mount pad (7) of sharp actuating mechanism (13) are connected, stiff end (12) and second mount pad (10) of sharp actuating mechanism (13) are connected, sharp actuating mechanism (13) during operation, work end (11) work of sharp actuating mechanism (13) is on support frame (5), a reaction force is given sharp actuating mechanism (13) in support frame (5), move up adjusting bracket (4) and bed frame (1) drive.

3. The medical bed of claim 2, wherein: the linear actuating mechanism (13) is an electric push rod, the electric push rod comprises a motor part (14) and a push rod part (15) connected with the motor part (14), the motor part (14) is arranged at one end of the push rod part (15), and the motor part (14) can drive the push rod part (15) to extend and retract; the fixed end (12) of the motor part (14) end of the electric push rod is arranged on the first mounting seat (7), and the working end (11) of the extensible push rod part (15) end of the electric push rod is arranged on the second mounting seat (10).

4. The medical bed according to claim 2 or 3, wherein: a connecting lug (16) is arranged on the end face of the fixed end (12) of the linear actuating mechanism (13), a mounting plate (17) is arranged on the first mounting seat (7), a connecting hole is formed in the mounting plate (17), and the connecting lug (16) is hinged with the mounting plate (17) through a pin shaft; an ear seat (19) is arranged on the second mounting seat (10), and a working end (11) of the linear actuating mechanism (13) is hinged with the ear seat (19) through a pin shaft; the first mounting seat (7) is further provided with a supporting seat (20), and the fixed end (12) of the linear actuator (13) is seated on the supporting seat (20).

5. The medical bed of claim 1, wherein: a first panel (21) is covered on the outer side of the adjusting frame (4), a second panel (22) is arranged on the rear side of the adjusting frame (4), a transverse installing frame (23) is further arranged on the adjusting frame (4), and the first panel (21) and the second panel (22) are fixedly installed on the front side and the rear side of the installing frame (23); the fixed end (12) and the first mounting seat (7) of the lifting device (6) are positioned between the first panel (21) and the second panel (22), and the working end (11) of the linear driving mechanism penetrates through the mounting frame (23) to be connected with the second mounting seat (10).

6. The medical bed of claim 4, wherein: support frame (5) include that outside whole is the frame of U type, first mount pad (7) including base (71) and with frame fixed connection's connecting rod (26), horizontal pole (24) part parallel arrangement of base (71) and frame, the one end and base (71) fixed connection of connecting rod (26), the other end and the frame fixed connection of connecting rod (26).

7. The medical bed of claim 6, wherein: the number of the connecting rods (26) is at least 2, and the base (71), the two connecting rods (26) close to the left side and the right side of the frame and the upper cross rod (24) of the frame partially form a trapezoid.

8. The medical bed of claim 1, wherein: the adjustable lifting device is characterized in that guide rods (27) are arranged on the supporting frame (5), guide sleeves (28) are arranged on the adjusting frame (4), the guide sleeves (28) are inserted into the guide rods (27), the adjusting frame (4) can move up and down along the guide rods (27) through the guide sleeves (28), the number of the guide rods (27) is at least two, the adjustable lifting device further comprises reinforcing frames (29), the reinforcing frames (29) are arranged between the guide rods (27), and two ends of each reinforcing frame (29) are respectively fixedly connected with the guide rods (27); a second mounting seat (10) used for being connected with one end of the lifting device (6) is arranged on the supporting frame (5).

9. The medical bed of claim 1, wherein: the bed frame (1) comprises a backrest frame (40) for supporting the back and a knee bracket (41) for supporting the knee; the backrest frame (40) and the knee support (41) are hinged with the bed frame (1); the bed frame (1) is also provided with a first rotating shaft (33) and a second rotating shaft (34), the first rotating shaft (33) is connected with the back rest frame (40) through a first connecting rod mechanism (30), and when the first rotating shaft (33) rotates, the back rest frame (40) is driven to rotate around the bed frame (1) through the first connecting rod mechanism (30) to realize the lifting and falling of the bed frame (1); the first rotating shaft (33) is connected with the knee bracket (41) through the second connecting rod mechanism (31), and when the second rotating shaft (34) rotates, the knee bracket (41) is driven to rotate around the bed frame (1) through the second connecting rod mechanism (31) to realize the lifting and falling of the bed frame (1); the device is characterized by further comprising a ship-shaped motor (32), wherein one of two output ends of the ship-shaped motor (32) is connected with the first rotating shaft (33) to drive the first rotating shaft (33) to rotate, and the other output end of the ship-shaped motor (32) is connected with the second rotating shaft (34) to drive the second rotating shaft (34) to rotate; when the backrest frame (40) and the knee bracket (41) are completely laid flat, a supporting surface with a horizontal folding surface and a horizontal curved surface is formed; the second mounting seat (10) is positioned at the lower side of the reinforcing frame (29), and a channel for the lifting device (6) to pass through is arranged on the reinforcing frame (29); the support surfaces of the backrest frame (40) and the knee support (41) are formed by pipe members.

10. The medical bed of claim 1, wherein: clamping plates (35) are arranged at four corners of the bed frame (1), bayonets (36) with downward inlets are arranged on the clamping plates (35), positioning shafts (37) are fixedly arranged on a left leg and a right leg of the adjusting frame (4), the bayonets (36) are movably clamped on the positioning shafts (37), and the bed frame (1) is connected with the bed head frame (2) and the bed tail frame (3) through clamping of the bayonets (36) and the positioning shafts (37); when the bed head frame (2) and the bed tail frame (3) are different in lifting height, the bed frame (1) can rotate around the positioning shaft (37) through the bayonet (36) to realize inclination of a certain angle.