CN115444679A - Triple-linkage internal medicine nursing sitting frame - Google Patents

Abstract

The invention provides a triple-linkage sitting frame for medical nursing, and belongs to the technical field of medical nursing devices. Comprises a bed body assembly, a backrest turning plate assembly, a linkage leg pillow assembly, a linkage foot pushing assembly and a triple driving assembly, and the whole bed body takes a main bed plate as a setting foundation; a backrest turning plate capable of automatically turning is installed in a turning plate position arranged on the front side of the main bed plate, leg pillows capable of automatically turning are installed in leg pillow positions arranged in the middle of the main bed plate, a leg inclined pushing plate capable of transversely moving is connected to the rear side of the main bed plate in a sliding mode, the leg pillows can synchronously turn upwards and move while backing against the turning plate, the leg inclined pushing plate can synchronously push forwards, and a patient can be assisted in sitting up and knee bending; meanwhile, the three groups of driving sources are also triple driving assemblies, and the leg rest rotating bevel gear and the pushing gear can be synchronously driven to rotate through the transmission mechanism while the flap shaft rotates, therefore, the linkage of three groups of actions can be formed, and the device has the advantages of high automation degree and high integration degree.

Description

Triple-linkage internal medicine nursing sitting frame

Technical Field

The invention relates to the technical field of medical nursing devices, in particular to a three-linkage medical nursing sitting frame.

Background

The existing traditional sitting frame for medical nursing usually holds up a patient manually when the inclination of a backrest is adjusted, and then manually adjusts the inclination of the backrest, so that the nursing is inconvenient.

On the basis, a device capable of automatically adjusting the angle of the backrest is expanded, and a sitting frame for medical nursing disclosed in the prior art (CN 211156895U) comprises a sitting frame supporting plate, wherein one end of the sitting frame supporting plate is rotatably connected with a backrest supporting plate through a pin, one side of the sitting frame supporting plate is fixedly provided with a control button, the other end of the control button is welded with a supporting block, the bottom of the backrest supporting plate is welded with a lifting fixed block, the bottom of the lifting fixed block is provided with a lead screw lifting rod, the bottom of the lead screw lifting rod is fixedly provided with a lead screw motor, the top of the supporting block is welded with a telescopic rod, the bottom of the telescopic rod is welded with a small table main supporting plate, and a small table extending plate is arranged inside the small table main supporting plate; can lead the angle of the backrest to be freely adjusted according to the requirement of a patient, and improves the comfort when the angle of the backrest is adjusted to a certain extent.

However, in the actual medical nursing process, part of patients lose the autonomous mobility, and the devices only have the function of automatically adjusting the backrest and perform single sitting-up support on the back of the patient; however, after the patient stands up and sits down, in order to improve the comfort, the legs of the patient are mostly in the knee bending state, so that the patient can be in a comfortable and relaxed state when sitting and lying, and therefore a standing and sitting device which is matched with the movement of the backrest plate to assist in moving the legs is needed.

Disclosure of Invention

Aiming at the technical problem, the invention provides a three-linkage internal medicine nursing sitting frame which comprises a bed body assembly, a backrest turning plate assembly, a linkage leg pillow assembly, a linkage foot pushing assembly and a three-linkage driving assembly;

the bed body assembly comprises a main bed plate, a turning plate position and a leg pillow position, the backrest turning plate assembly comprises a turning plate shaft, a backrest turning plate, a turning plate rotating gear and a turning plate driving gear, the linkage leg pillow assembly comprises a leg pillow shaft, a leg pillow and a leg pillow rotating bevel gear, the linkage foot pushing assembly comprises a leg oblique pushing plate and a bottom sliding block, and the triple driving assembly comprises a turning plate connecting bevel gear, a conversion bevel gear, a leg pillow driving bevel gear, a foot pushing bevel gear, a pushing rack and a pushing gear;

a main bed plate in the bed body assembly is a setting foundation, a turning plate position is arranged on the front side of the main bed plate main surface, a leg pillow position is arranged in the middle of the main bed plate main surface, a turning plate shaft in the backrest turning plate assembly is rotatably arranged at the position corresponding to the bottom surface of the main bed plate and the rear side of the turning plate position, the rear end of the backrest turning plate is fixedly inserted in the turning plate shaft, a turning plate rotating gear is fixedly inserted at the rear side shaft end of the turning plate shaft, one side of the turning plate rotating gear is meshed with a turning plate driving gear capable of automatically rotating, a leg pillow shaft in the linkage leg pillow assembly is rotatably arranged at the position corresponding to the bottom surface of the main bed plate and the front side of the leg pillow position, a leg pillow is fixedly inserted in the leg pillow shaft, a leg pillow rotating bevel gear is inserted at the front side shaft end of the leg pillow shaft, and the linkage foot part pushes a leg inclined push plate in the assembly to be transversely connected to the rear end of the main bed plate through two groups of bottom sliders connected at the lower end;

a turning plate connecting bevel gear in the triple driving assembly is fixedly inserted into the front shaft end of a turning plate shaft, one side of the turning plate connecting bevel gear is engaged with a conversion bevel gear, the rear side of the conversion bevel gear is coaxially connected with a leg pillow driving bevel gear and a foot pushing bevel gear, the leg pillow driving bevel gear is in transmission connection with a leg pillow rotating bevel gear, the leg pillow comprises a bottom sliding block, a foot part, a back turning plate and a leg inclined pushing plate, wherein a pushing rack is transversely connected between the two groups of bottom sliding blocks, a pushing gear is meshed with the lower side of the pushing rack and is in transmission connection with a foot part pushing bevel gear, when the back turning plate turns upwards, the leg pillow can synchronously turn towards the back turning plate, and the leg inclined pushing plate can synchronously move towards the leg pillow.

Two groups of bottom bed frames in the bed body assembly are respectively and fixedly connected to the front side and the rear side of the bottom surface of the main bed board;

a front vertical plate is fixedly arranged on the front side of the main surface of the main bed plate;

a step-shaped leg pillow opening is formed in the rear side of the leg pillow position.

Two groups of turning plate shaft seats in the backrest turning plate assembly are fixedly connected to the bottom surface of the main bed plate at positions corresponding to the turning plate shafts in a front-back corresponding mode, and the turning plate shafts are rotatably connected into the two groups of turning plate shaft seats;

the turning plate driving motor is fixedly installed at the position, corresponding to the turning plate driving gear, of the bottom surface of the main bed plate, and the turning plate driving gear is fixedly inserted into a rotary shaft of the turning plate driving motor.

Two groups of leg pillow shafts in the linkage leg pillow assembly are fixedly connected to the bottom surface of the main bed plate at positions corresponding to the leg pillow shafts in a front-back corresponding mode, and the leg pillow shafts are rotatably connected to the two groups of leg pillow shafts.

Two groups of bottom sliding rails in the linkage foot pushing assembly are transversely and mutually parallel fixed on the bottom surface of the main bed board and at positions corresponding to the two groups of bottom sliding blocks, and the two groups of bottom sliding blocks are respectively connected in the positions corresponding to the bottom sliding rails in a sliding manner;

each group of bottom sliding blocks is fixedly connected with the side surface of the leg inclined push plate through the corresponding side connecting arm;

the front ends of the two groups of bottom sliding rails are fixedly connected with front limiting plates.

Two groups of conversion shaft seats in the triple driving assembly are fixedly connected to the bottom surface of the main bed plate and correspond to the conversion bevel gears, conversion shafts are connected in the two groups of conversion shaft seats in a co-rotating mode, and the conversion bevel gears are fixedly connected to the front shaft ends of the conversion shafts in an inserting mode;

the leg pillow driving bevel gear is fixedly inserted in the shaft of the conversion shaft at a position corresponding to the leg pillow rotating bevel gear;

the foot part pushes the bevel gear to be fixedly inserted at the rear shaft end of the conversion shaft;

the inner side of the foot pushing bevel gear is engaged with a foot pushing connection bevel gear, the bottom surface of the main bed plate is fixedly connected with a connection shaft seat at a position corresponding to the foot pushing connection bevel gear, a connection shaft is rotatably connected in the connection shaft seat, the foot pushing connection bevel gear is fixedly connected to the outer shaft end of the connection shaft in an inserting manner, and the inner shaft end of the connection shaft is fixedly connected with a rotating belt wheel in an inserting manner;

a pushing yoke plate is fixedly connected between the two groups of bottom sliding blocks at the position corresponding to the pushing rack, and the pushing rack is transversely and fixedly connected to the bottom surface of the pushing yoke plate;

a pushing connecting arm is fixedly connected to a position, corresponding to the pushing gear, of the vertical surface of the connecting shaft seat, a pushing shaft is rotatably connected to the pushing connecting arm, and the pushing gear is fixedly inserted into a position, corresponding to the pushing rack, in the shaft of the pushing shaft;

the outer shaft end of the pushing shaft is fixedly connected with a pushing belt wheel in a corresponding position with the rotating belt wheel in an inserting mode, and a pushing connecting belt is sleeved between the pushing belt wheel and the rotating belt wheel.

Furthermore, a plurality of groups of turning plate lower backup plates are uniformly and fixedly connected to the positions of the bottom surface of the main bed plate corresponding to the turning plate positions.

Furthermore, a leg pillow access plate is arranged on the position, corresponding to the leg pillow access, of the bottom surface of the outer side of the leg pillow, and the leg pillow access plate and the leg pillow access can form lap joint matching.

Furthermore, a certain backward inclination angle is formed between the vertical surface of the leg inclined push plate and the main surface of the main bed plate.

Compared with the prior art, the three-linkage medical nursing sitting frame provided by the invention has the following advantages:

(1) The backrest turning plate assembly is arranged in front of the main surface of the main bed plate for patient nursing lying, and main back support assistance for patient sitting up can be realized through the backrest turning plate which can be turned in the backrest turning plate assembly; meanwhile, the linkage leg pillow assembly is arranged in the middle of the main surface of the main bed plate, the leg of a patient can be padded up in the sitting up process through the reversible leg pillow, the linkage foot pushing assembly is arranged on the rear side of the main surface of the main bed plate, and the leg inclined pushing plate capable of transversely moving can push the feet of the patient in the knee bending process, so that the synchronous leg folding and knee bending actions of the patient in the sitting up process can be realized, the sitting up posture of the patient is more comfortable, and the leg pillow is particularly suitable for sitting up of the patient who cannot take care of actions.

(2) Specifically, the turning action of the leg pillow and the forward pushing action of the leg oblique pushing plate are synchronous with the turning action of the backrest turning plate, the power source of the turning action of the leg pillow and the forward pushing action of the leg oblique pushing plate are the turning plate driving motor in the backrest turning plate assembly, when the turning plate driving motor drives the backrest turning plate to turn through the matching of the turning plate driving gear and the turning plate rotating gear, the turning plate connecting bevel gear can drive the leg pillow to turn synchronously through the transmission mechanism and drive the connecting plate and the two groups of bottom sliding blocks to move synchronously forward, so that the forward pushing action of the leg oblique pushing plate is driven, and the leg pillow has the advantages of high integration degree and high automation degree.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.

Fig. 1 is a schematic overall structure diagram of a three-linkage medical nursing sitting frame provided by the invention;

FIG. 2 is a schematic structural diagram of a bed assembly according to the present invention;

FIG. 3 is a schematic view of the structure of the backrest flap assembly of the present invention;

FIG. 4 is a first perspective view of the linkage leg rest assembly of the present invention;

FIG. 5 is a schematic view of a linkage leg rest assembly according to a second aspect of the present invention;

FIG. 6 is a schematic view of a linkage foot pushing assembly according to a first perspective of the present invention;

FIG. 7 is a schematic view of a linkage foot pushing assembly of the present invention from a second perspective;

fig. 8 is a schematic structural view of a triple drive assembly of the present invention.

Reference numerals are as follows: 1. a bed body assembly; 2. a backrest flap assembly; 3. a linkage leg rest assembly; 4. a linkage foot pushing assembly; 5. a triple drive assembly; 101. a main bed board; 102. a bottom bed frame; 103. a front vertical plate; 104. turning over the plate position; 105. a leg pillow position; 106. a leg pillow lap; 201. a turning plate shaft seat; 202. a panel turnover shaft; 203. a backrest turning plate; 204. a flap rotating gear; 205. the turning plate drives the gear; 206. a flap driving motor; 207. turning plate lower backup plates; 301. the position of the leg pillow axis; 302. a leg pillow shaft; 303. a leg pillow; 304. a leg rest access board; 305. a leg rest rotary bevel gear; 401. a leg oblique push plate; 402. a lateral link arm; 403. a bottom slide rail; 404. a bottom slider; 405. a front limiting plate; 501. the turning plate is connected with a bevel gear; 502. converting the bevel gear; 503. a transfer shaft; 504. a shaft seat is converted; 505. the leg rest drives the bevel gear; 506. the foot part pushes the bevel gear; 507. the foot part pushes and is connected with a bevel gear; 508. a connecting shaft; 509. connecting the shaft seat; 510. a rotating pulley; 511. pushing the yoke plate; 512. pushing the rack; 513. pushing the linkage arm; 514. pushing the shaft; 515. a push belt wheel; 516. pushing the connecting belt; 517. pushing the gear.

Detailed Description

A three-linkage stand for surgical care according to the present invention will be described by way of example with reference to the accompanying drawings.

The first embodiment is as follows:

an example of the normal setting and the supporting action of the backrest turning plate 203 of the invention is shown in fig. 1, fig. 2, fig. 3 and fig. 5, a main bed board 101 in a bed body assembly 1 is a setting foundation, a turning plate position 104 is arranged at the front side of the main surface of the main bed board 101, a leg pillow position 105 is arranged at the middle position of the main surface of the main bed board 101, two groups of bottom bed frames 102 are respectively and fixedly connected at the front side and the rear side of the bottom surface of the main bed board 101, a front vertical plate 103 is installed and fixed at the front side of the main surface of the main bed board 101, and a step-shaped leg pillow lap 106 is arranged at the rear side of the leg pillow position 105;

a flap shaft 202 in the backrest flap assembly 2 is rotatably arranged at a position corresponding to the rear side of the flap position 104 on the bottom surface of the main bed board 101, the rear end of the backrest flap 203 is fixedly inserted in the flap shaft 202, a flap rotating gear 204 is fixedly inserted in the rear shaft end of the flap shaft 202, and one side of the flap rotating gear 204 is engaged with a flap driving gear 205 capable of automatically rotating;

specifically, the two sets of flap shaft bases 201 are fixedly connected to the bottom surface of the main bed board 101 at positions corresponding to the flap shafts 202 in a front-back corresponding manner, the flap shafts 202 are rotatably connected to the two sets of flap shaft bases 201, a flap driving motor 206 is fixedly installed at a position corresponding to the flap driving gear 205 on the bottom surface of the main bed board 101, and the flap driving gear 205 is fixedly inserted into a rotary shaft of the flap driving motor 206;

specifically, a plurality of turning plate lower backup plates 207 are uniformly and fixedly connected to the positions, corresponding to the turning plate positions 104, of the bottom surface of the main bed plate 101, and are used for providing support and horizontal limiting for the backrest turning plate 203 in a horizontal state;

a leg rest shaft 302 of the linkage leg rest assembly 3 is rotatably arranged at a position corresponding to the front side of the leg rest position 105 on the bottom surface of the main bed plate 101, a leg rest 303 is inserted and fixed in the leg rest shaft 302, and a leg rest rotating bevel gear 305 is inserted and fixed at the front side shaft end of the leg rest shaft 302;

a leg inclined push plate 401 in the linkage foot pushing assembly 4 is transversely connected to the rear end of the main surface of the main bed plate 101 in a sliding manner through two groups of bottom slide blocks 404 connected at the lower end;

the invention is placed in a medical nursing ward or a medical nursing room through two groups of bed frames 102;

in a daily state, a patient lies on the main surface of the main bed plate 101, the backrest turning plate 203 in the backrest turning plate assembly 2 and the leg pillow 303 in the linkage leg pillow assembly 3 are in a flat state, and the leg inclined push plate 401 in the linkage foot pushing assembly 4 is located on the rear side of the main surface of the main bed plate 101;

when a patient sits up;

the turning plate driving gear 205 is driven to rotate by starting the turning plate driving motor 206 in the back turning plate assembly 2, the turning plate driving gear 205 and the turning plate rotating gear 204 form matched transmission, the turning plate rotating gear 204 drives the back turning plate 203 to rotate through the turning plate shaft 202, so that the back turning plate 203 can be turned upwards and turned to a comfortable supporting position, and the back supporting support for patients is completed.

Example two:

on the basis of the first embodiment, an example of the present invention for realizing the linkage support of the leg pillow 303 and the linkage pushing of the inclined push pedal 401 of the leg part is shown in fig. 1, fig. 2, fig. 3, fig. 4, fig. 5, fig. 6, fig. 7 and fig. 8, two sets of leg pillow shaft positions 301 in the linkage leg pillow assembly 3 are fixedly connected to the bottom surface of the main bed plate 101 and the positions corresponding to the leg pillow shafts 302, the leg pillow shafts 302 are rotatably connected to the two sets of leg pillow shaft positions 301, a leg pillow attachment plate 304 is provided at the position corresponding to the leg pillow attachment 106 on the bottom surface of the outer side of the leg pillow 303, and the leg pillow attachment plate 304 and the leg pillow attachment 106 can form an overlapping fit;

two groups of bottom slide rails 403 in the linkage foot pushing assembly 4 are transversely and mutually parallel fixed on the bottom surface of the main bed board 101 and the positions corresponding to the two groups of bottom slide blocks 404, the two groups of bottom slide blocks 404 are respectively and slidably connected in the positions corresponding to the bottom slide rails 403, each group of bottom slide blocks 404 is fixedly connected with the side surface of the leg inclined push plate 401 through the corresponding side connecting arms 402,

specifically, the front ends of the two sets of bottom slide rails 403 are also fixedly connected with front limiting plates 405, and the moving stroke of the bottom slide block 404 can be limited by the set of bottom bed frames 102 on the rear side and the two sets of front limiting plates 405;

optimally, a certain backward inclination angle is formed between the vertical surface of the leg inclined push plate 401 and the main surface of the main bed board 101, so that the feet of patients can be more comfortably pushed;

a flap connecting bevel gear 501 in the triple drive assembly 5 is inserted and fixed in the front side shaft end of a flap shaft 202, one side of the flap connecting bevel gear 501 is meshed with a conversion bevel gear 502, the rear side of the conversion bevel gear 502 is coaxially connected with a leg pillow driving bevel gear 505 and a foot pushing bevel gear 506, the leg pillow driving bevel gear 505 is in transmission connection with a leg pillow rotating bevel gear 305, a pushing rack 512 is transversely connected between two groups of bottom sliders 404, the lower side of the pushing rack 512 is meshed with a pushing gear 517, and the pushing gear 517 is in transmission connection with the foot pushing bevel gear 506, when the backrest flap 203 is turned upwards, the leg pillow 303 can be synchronously turned towards the backrest flap 203 direction, the leg inclined push plate 401 can synchronously move towards the leg pillow 303 direction, when the medical nursing patients are assisted to get up, the thigh parts of the patients can be synchronously cushioned upwards by using the leg pillow 303, and the leg inclined knee push plate 401 can be used for pushing the legs of the patients towards the leg pillow 303 direction, so that the patients can be assisted to get up, the legs of the patients can be bent, the patients can be improved in sitting comfort of sitting up, and the self-help of the patients to use the self-walking of the patients;

specifically, two sets of conversion shaft seats 504 in the triple drive assembly 5 are fixedly connected to the bottom surface of the main bed board 101 at positions corresponding to the conversion bevel gears 502, the two sets of conversion shaft seats 504 are commonly and rotatably connected with the conversion shaft 503, the conversion bevel gears 502 are fixedly inserted at the front shaft end of the conversion shaft 503, the leg pillow drive bevel gears 505 are fixedly inserted at positions in the shafts of the conversion shaft 503 corresponding to the leg pillow rotary bevel gears 305, the foot push bevel gears 506 are fixedly inserted at the rear shaft end of the conversion shaft 503, the inner sides of the foot push bevel gears 506 are engaged with the foot push connection bevel gears 507, the bottom surface of the main bed board 101 and the positions corresponding to the foot push connection bevel gears 507 are fixedly connected with the connection shaft seats 509, the connecting shafts 508 are rotatably connected with the connecting shafts 508, the rotating pulleys 510 are fixedly inserted at the inner sides of the connecting shafts 508, the positions corresponding to the push racks 512 between the two sets of bottom sliders 404 are fixedly connected with the push coupling plates 511, the bottom surfaces of the push coupling plates 512 are connected to the push coupling plates 511, the positions corresponding to the push shaft ends of the push shafts 509, the push shafts are fixedly connected with the push shafts 514, the push coupling pulleys 510, the push shafts are fixedly connected with the push shafts 512, the push shafts are connected with the push arms 516, the push shafts 510, the push shafts are connected with the push shafts 510, the push shafts 512, the push shafts are connected with the push shafts 510;

when the backrest turnover plate 203 is supported in a turnover mode, the rotation of the turnover plate shaft 202 drives the turnover plate connecting bevel gear 501 to rotate, the turnover plate connecting bevel gear 501 and the conversion bevel gear 502 form matched transmission, the conversion bevel gear 502 coaxially drives the leg pillow driving bevel gear 505 to rotate, the leg pillow driving bevel gear 505 and the leg pillow rotating bevel gear 305 form matched transmission, the leg pillow shaft 302 can be driven to rotate, the leg pillow shaft 302 drives the leg pillow 303 to turn over, and the leg pillow 303 can be used for cushioning thighs of a patient in the sitting process to form preliminary knee bending action;

meanwhile, the conversion bevel gear 502 coaxially drives the foot to push the bevel gear 506 to rotate, the foot pushes the bevel gear 506 to form a matched transmission with the foot pushing connection bevel gear 507, the foot pushing connection bevel gear 507 coaxially drives the rotary pulley 510 to rotate through the connection shaft 508, the rotary pulley 510 drives the rotary pulley 515 to rotate through a transmission belt pushing the connection belt 516, the push pulley 515 coaxially drives the push gear 517 to rotate through the push shaft 514, the push gear 517 and the push rack 512 form a matched transmission, the push rack 512 can be driven to move towards the direction of the leg pillow 303, so as to drive the push link 511 connected with the push rack 512, the two sets of bottom sliders 404 connected with the push link 511, and the leg inclined push plate 401 connected with the two sets of bottom sliders 404 through the two sets of side links 402 to move, the feet of the patient can be pushed towards the direction of the leg pillow 303 through the movement of the leg inclined push plate 401, the knee bending action of the patient can be further realized, the bending action of the patient can be kept after the patient sits up, the patient can sit more comfortably, and the patient can not sit up for self-care.

Finally, it should be noted that: the above-mentioned embodiments are only used to illustrate the technical solution of the triple application process of the three-linkage medical nursing frame, but not to limit the application process; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.

Claims (9)

1. The utility model provides a triple linkage internal medicine nursing is with having sat frame, includes bed body assembly (1), its characterized in that: the three-linkage leg pillow is characterized by further comprising a backrest turnover plate assembly (2), a linkage leg pillow assembly (3), a linkage foot pushing assembly (4) and a triple driving assembly (5);

the bed body assembly (1) comprises a main bed plate (101), turning plate positions (104) and leg pillow positions (105), the backrest turning plate assembly (2) comprises a turning plate shaft (202), a backrest turning plate (203), a turning plate rotating gear (204) and a turning plate driving gear (205), the linkage leg pillow assembly (3) comprises a leg pillow shaft (302), a leg pillow (303) and a leg pillow rotating bevel gear (305), the linkage foot pushing assembly (4) comprises a leg inclined pushing plate (401) and a bottom sliding block (404), and the triple driving assembly (5) comprises a turning plate connecting bevel gear (501), a conversion bevel gear (502), a leg pillow driving bevel gear (505), a foot pushing bevel gear (506), a pushing rack (512) and a pushing gear (517);

a main bed plate (101) in the bed body assembly (1) is a setting foundation, a turning plate position (104) is arranged at the front side of the main surface of the main bed plate (101), a leg pillow position (105) is arranged in the middle of the main surface of the main bed plate (101), a turning plate shaft (202) in the backrest turning plate assembly (2) is rotatably arranged at a position corresponding to the rear side of the turning plate position (104) on the bottom surface of the main bed plate (101), the rear end of the backrest turning plate (203) is fixedly inserted in the turning plate shaft (202), a turning plate rotating gear (204) is fixedly inserted at the rear shaft end of the turning plate shaft (202), one side of the turning plate rotating gear (204) is engaged with a driving gear (205) capable of automatically rotating the turning plate, a leg pillow shaft (302) in the linkage leg pillow assembly (3) is rotatably arranged at a position corresponding to the front side of the bottom surface of the main bed plate (101) and the leg pillow position (105), the leg pillow (303) is fixedly inserted in the leg pillow shaft (302) and the lower end of a sliding block (401) connected with the rear side of the leg pillow shaft (302) through a transverse push plate (401);

a turning plate connecting bevel gear (501) in the triple drive assembly (5) is fixedly inserted into the front side shaft end of a turning plate shaft (202), one side of the turning plate connecting bevel gear (501) is meshed with a conversion bevel gear (502), the rear side of the conversion bevel gear (502) is coaxially connected with a leg pillow driving bevel gear (505) and a foot pushing bevel gear (506), the leg pillow driving bevel gear (505) is in transmission connection with a leg pillow rotating bevel gear (305), a pushing rack (512) is transversely connected between two groups of bottom sliding blocks (404), the lower side of the pushing rack (512) is meshed with a pushing gear (517), the pushing gear (517) is in transmission connection with the foot pushing bevel gear (506), when the back turning plate (203) turns upwards, the leg pillow (303) can synchronously turn towards the back turning plate (203), and the leg oblique pushing plate (401) can synchronously move towards the leg pillow (303).

2. The three-linkage medical nursing sitting frame as claimed in claim 1, wherein: two groups of bottom bed frames (102) in the bed body assembly (1) are fixedly connected to the front side and the rear side of the bottom surface of the main bed board (101) respectively, a front vertical board (103) is fixedly installed on the front side of the main surface of the main bed board (101), and a stepped leg pillow opening (106) is formed in the rear side of the leg pillow position (105).

3. The three-linkage medical nursing sitting frame as claimed in claim 2, wherein: two sets of reverse turning plate shaft bases (201) in the backrest reverse turning plate assembly (2) are fixedly connected to the positions corresponding to the bottom surface of the main bed plate (101) and the reverse turning plate shaft (202), the reverse turning plate shaft (202) is rotatably connected to the two sets of reverse turning plate shaft bases (201), reverse turning plate driving motors (206) are fixedly installed on the positions corresponding to the bottom surface of the main bed plate (101) and the reverse turning plate driving gears (205), and the reverse turning plate driving gears (205) are inserted and fixed in rotary shafts of the reverse turning plate driving motors (206).

4. The three-linkage medical nursing sitting frame as claimed in claim 3, wherein: a plurality of groups of turning plate lower backup plates (207) are uniformly and fixedly connected to the positions, corresponding to the turning plate positions (104), of the bottom surface of the main bed plate (101).

5. The three-linkage medical nursing sitting frame as claimed in claim 1 or 2, wherein: two groups of leg pillow shaft positions (301) in the linkage leg pillow assembly (3) are fixedly connected to the bottom surface of the main bed plate (101) at positions corresponding to the leg pillow shafts (302) in the front-back direction, and the leg pillow shafts (302) are rotatably connected to the two groups of leg pillow shaft positions (301).

6. The three-linkage medical nursing sitting frame according to claim 5, wherein: the outer bottom surface of the leg pillow (303) is provided with a leg pillow access board (304) at the position corresponding to the leg pillow access (106), and the leg pillow access board (304) and the leg pillow access (106) can form lap joint matching.

7. The three-linkage medical nursing sitting frame as claimed in claim 1 or 2, wherein: two sets of end slide rails (403) in linkage foot promotion assembly (4) are horizontal and mutually parallel fix on the position that the bottom surface of main bed board (101) corresponds with two sets of end slider (404), and are two sets of end slider (404) sliding connection respectively is in the position that end slide rail (403) correspond, every group end slider (404) all are connected fixedly through the side of corresponding side yoke arm (402) and shank push pedal (401) to one side, and are two sets of the front end of end slide rail (403) is limit board (405) before still fixedly connected with.

8. The three-linkage medical nursing sitting frame as claimed in claim 7, wherein: the elevation of the leg inclined push plate (401) and the main surface of the main bed plate (101) have a certain backward inclined angle.

9. The three-linkage medical nursing sitting frame as claimed in claim 1 or 7, wherein: two groups of conversion shaft seats (504) in the triple drive assembly (5) are fixedly connected to the bottom surface of a main bed plate (101) at positions corresponding to conversion bevel gears (502), the two groups of conversion shaft seats (504) are commonly and rotatably connected with conversion shafts (503), the conversion bevel gears (502) are inserted and fixed at the front shaft ends of the conversion shafts (503), leg driving bevel gears (505) are inserted and fixed at positions in the shafts of the conversion shafts (503) corresponding to leg pillow rotating bevel gears (305), the leg pushing bevel gears (506) are inserted and fixed at the rear shaft ends of the conversion shafts (503), the inner sides of the leg pushing bevel gears (506) are engaged with leg pushing connection bevel gears (507), the bottom surface of the main bed plate (101) and the positions corresponding to the leg pushing connection bevel gears (507) are fixedly connected with connection shaft seats (509), the middle rotating connection shafts of the connection shafts (509) are connected with rotary connection shafts (508), the leg pushing connection bevel gears (507) are inserted and fixedly connected to the outer sides of connecting shafts (508), the inner sides of the connecting shafts (508) are fixedly connected with rotation shaft seats (510), the pushing connection plates (511) corresponding to the pushing connection shafts (512) of the two groups of the pushing connection plates (511), fixedly connected with promotes antithetical couplet arm (513) on the facade of connection axle bed (509) and the position that promotes gear (517) and correspond, it promotes axle (514) to rotate to be connected in promotion antithetical couplet arm (513), promote gear (517) peg graft to fix on the position that the position corresponds with promotion rack (512) in the axle that promotes axle (514), still peg graft fixedly on the position that the outer axle head that promotes axle (514) corresponds with rotatory band pulley (510) and be connected with and promote band pulley (515), it installs promotion connecting belt (516) to cup joint between promotion band pulley (515) and rotatory band pulley (510).

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