CN115317274A

CN115317274A - Hospital bed

Info

Publication number: CN115317274A
Application number: CN202210921771.9A
Authority: CN
Inventors: 黄振宁
Original assignee: First Affiliated Hospital of Guangxi Medical University
Current assignee: First Affiliated Hospital of Guangxi Medical University
Priority date: 2022-08-02
Filing date: 2022-08-02
Publication date: 2022-11-11

Abstract

The invention discloses a sickbed, which comprises a bed plate for a patient to lie on, wherein a protection pad for supporting and padding is arranged in the bed plate in a telescopic manner; the protection pad is including arranging in callus on the sole, chest pad and headrest in proper order, and callus on the sole, chest pad and headrest are arranged according to the tailstock of bed board to head of a bed direction in proper order. The bed board adopts a protection pad which can be flexibly adjusted and controlled through telescopic movement, the bed bottom adopts a driving chamber which is mainly composed of a motor, a gear carrier and a threaded rod corresponding to the gear, the protection pad is composed of a foot pad, a chest pad and a head pad, the prone position of a patient can be conveniently supported, the flexible height of the protection pad which can be flexibly adjusted and controlled through the electric control transmission of the driving chamber is convenient, different patients can flexibly rise and support the pad according to the requirements, so that the patients can lie in the prone position with comfortable body positions, and the digestion of the body is assisted.

Description

Sickbed

Technical Field

The invention relates to the technical field of sickbeds, in particular to a sickbed.

Background

The digestive system department includes the digestive system department and the digestive surgery department, and is a clinical department provided in hospitals of all levels for diagnosing and treating digestive system diseases. The digestive system department is a clinical third-level subject which mainly studies diseases of esophagus, stomach, small intestine, large intestine, liver, gallbladder and pancreas and the like. The digestive system diseases are various, the medical knowledge is wide, and the operation is complex and fine.

The clinical patient of gastroenterology takes place the phenomenon of dyspepsia frequently, considers the not good condition of patient's health, can take the position of prone position, relies on the action of gravity to make the clearance of upper duodenum artery and duodenum horizontal part enlarge, avoids the upper duodenum artery to the oppression of duodenum horizontal part, makes the better digestion of food. However, the current clinical sickbed has a flat bed surface, and needs to be padded with articles in the prone position, and because different patients have different body types, the patients with the raised height are difficult to be padded with appropriate articles on the sickbed, and the problems are urgently needed to be improved.

To this end, we provide a hospital bed to solve the above problems.

Disclosure of Invention

The present invention is directed to a hospital bed to solve the above problems.

In order to achieve the purpose, the invention provides the following technical scheme: a sickbed comprises a bed plate for a patient to lie on, a protection pad for supporting and cushioning the patient in a flexible prone position is arranged in the plate body of the bed plate in a telescopic mode, a driving chamber for regulating and controlling the protection pad to be flexibly and telescopically protruded on the bed surface is arranged at the bottom of the plate body of the bed plate, and a fastening mechanism for positioning the protection pad after the protection pad is telescopic is further arranged in the driving chamber;

the protection pad comprises a foot pad, a chest pad and a head pad which are arranged in sequence, wherein the foot pad, the chest pad and the head pad are arranged in sequence from the tailstock to the head of the bed plate;

a gear rack is fixedly connected to the inside of the driving chamber, a gear groove with an opening at one end is formed in the gear rack, a driving gear is rotatably connected to the inside of the gear groove and provides power through a driving structure at the bottom, a vertical first threaded rod is fixedly connected to the bottom of the headrest, a first driven gear is in threaded connection with the bottom of the first threaded rod, a wheel body of the first driven gear is movably inserted into the gear groove, and one end of the first driven gear is meshed with the driving gear and is used for adjusting and controlling the protrusion height through telescopic movement of the threaded transmission headrest relative to the bed board;

the bottom of the breast pad is fixedly connected with a vertical second threaded rod, the bottom of the second threaded rod is in threaded connection with a second driven gear, a wheel body of the second driven gear is movably inserted into the gear groove, and one end of the second driven gear is meshed with the driving gear and is used for adjusting and controlling the protrusion height by means of driving the breast pad to move relative to the bed board in a telescopic mode through threads;

third threaded rods which are movably inserted are arranged at the bottom of the foot pad at intervals, a third driven gear is connected to the bottom of the third threaded rod in a threaded manner, a transmission gear is rotatably connected between the third driven gear and the second driven gear in the gear groove, and the opposite ends of the third driven gear and the second driven gear are meshed with the transmission gear, are used for transmission among the gear sets and are used for driving the third threaded rod in the middle of the third driven gear to move in a telescopic manner in a threaded manner, so that the foot pad moves in a telescopic manner relative to the bed board to regulate the height of the protrusion;

fastening device is including being located the carrier bottom and the guide cylinder that feeds through the gear groove, the interior bottom fixedly connected with electric putter of guide cylinder, electric putter's piston rod end fixedly connected with grinds the board of stopping, the integration of the plate body border that grinds the board of stopping is provided with the platelike cardboard of rectangle, the draw-in groove has been seted up to the guide cylinder inner wall, grind in the sliding connection guide cylinder that the plate body level of the board of stopping was arranged, the one end and the draw-in groove sliding connection of cardboard, its pass direction that is used for grinding the board of stopping, just the bottom surface activity of grinding the board of stopping passes the guide cylinder and presses and touch the drive gear upper surface for stop drive gear and rotate, and then stop whole gear drive group.

As an alternative to the hospital bed according to the invention, wherein: two symmetrically-arranged grooves are formed in the upper portion of the foot pad, and each groove is an arc-shaped groove with an upper end open.

As an alternative to the hospital bed according to the invention, wherein: the chest pad sets up to right trapezoid structure, forms the flat portion that the slope and the level of orientation callus on the sole arranged, and the one end of flat portion orientation headrest is seted up and is made things convenient for patient's chest to prevent the extrusion and male standing groove.

As an alternative to the hospital bed according to the invention, wherein: the upper portion of the head pad is of a U-shaped structure, a U-shaped groove is formed inside the head pad, and the U-shaped opening end of the U-shaped groove faces towards the chest pad.

As an alternative to the hospital bed according to the invention, wherein: the positions on the bed board corresponding to the foot pads, the chest pads and the head pads are sequentially provided with foot pad grooves, chest pad grooves and head pad grooves matched in a sliding guide mode.

As an alternative to the hospital bed according to the invention, wherein: the driving chamber is of a hollow rectangular box-shaped structure, and supporting legs at the bottom of the bed board are fixedly connected to the end parts of the four corners.

As an alternative to the hospital bed according to the invention, wherein: the driving structure comprises a motor fixedly connected to the bottom of the gear groove, and an output shaft end of the motor penetrates through the gear rack to be connected with the center of the bottom of the driving gear through a bearing.

As an alternative to the hospital bed according to the invention, wherein: the bottom fixedly connected with of callus on the sole guide pin pole of erectting, the guide pin pole includes the square pole of fixed connection callus on the sole, and montant bottom fixedly connected with width has 1 cm's square slab at least greatly, the guide way has been seted up in the position that the guide pin pole bottom corresponds on the third threaded rod, the guide way cooperates with guide pin pole bottom sliding guide, the annular guide holder that still fixedly connected with cooperation third threaded rod top was pegged graft bottom the callus on the sole, the driving chamber bottom is rotated through the bearing and is connected with annular rotation handle, driving chamber threaded connection is run through in the central annular hole of rotation handle to third threaded rod bottom.

As an alternative to the hospital bed according to the invention, wherein: terminal surface laminating about the cell body in gear groove and each driven gear, and each threaded rod passes gear groove and the edge leaves the interval and does not collide the contact, just correspond each threaded rod and advance to offer the screw hole that is used for screw drive to use in first driven gear, second driven gear and the third driven gear.

As an alternative to the hospital bed according to the invention, wherein: the transmission gear is provided with a circular grinding brake groove at a position corresponding to the grinding brake plate, and the diameter of the grinding brake groove is larger than the maximum width of the clamping plate combination at the edge of the grinding brake plate.

Compared with the prior art, the invention has the following beneficial effects:

1. according to the sickbed, the bed board is a protection pad which can be flexibly adjusted and controlled through telescopic movement, the bed bottom is a driving chamber mainly composed of a motor, a gear carrier and a threaded rod corresponding to the gear, the protection pad is composed of a foot pad, a chest pad and a head pad, the patient can be conveniently supported in the prone position, the flexible height of the protection pad which can be flexibly adjusted and controlled through the electric control transmission of the driving chamber is convenient, different patients can be conveniently and flexibly supported by the pad in the raised and raised manner according to the needs, so that the patients can lie in the prone position with comfortable body positions, and the digestion of the body can be assisted;

2. according to the sickbed, the bottom of the foot pad is pushed through the slidably inserted threaded rod, and the distance between the top of the threaded rod and the bottom of the foot pad can be adjusted by manually turning and rotating the handle, so that the foot pad is lower than the rising heights of the chest pad and the head pad, the feet of a patient can be supported in a downward inclined manner, and the patient can conveniently lie down;

3. this sick bed takes to stop by the guide cylinder, grinds the fastening device that the groove constitutes of stopping in the drive gear top, and electric putter passes to grind the board of stopping and presses and touch the drive gear bottom, can stop drive gear, stops each gear and continues to rotate, avoids each threaded rod to remove to each fills up body stable support patient's health, improves the result of use.

Drawings

Fig. 1 is a schematic view of the internal structure of the present invention.

Fig. 2 is a schematic front view of the present invention.

Fig. 3 is a schematic view of the connection relationship on the bed board of the present invention.

Fig. 4 is a schematic front view of the pad of the present invention.

FIG. 5 is a schematic front view of the gear engagement connection of the present invention.

Fig. 6 is an exploded view of a partial cross-sectional structure of the pad driver according to the present invention.

FIG. 7 is an enlarged view of region A of FIG. 6 according to the present invention.

Fig. 8 is a partial sectional view illustrating the connection relationship of the pad of the present invention in the initial state.

In the figure: 1. a bed plate; 101. a foot pad slot; 102. a chest pad groove; 103. a head pad slot; 2. a pad; 201. a foot pad; 202. a chest pad; 203. a head pad; 204. a groove; 205. a bevel portion; 206. a flat portion; 207. a placement groove; 208. a U-shaped groove; 3. supporting legs; 4. a drive chamber; 401. a gear carrier; 402. a gear groove; 403. a driving gear; 404. a motor; 405. a first threaded rod; 406. a second threaded rod; 407. a first driven gear; 408. a second driven gear; 409. a transmission gear; 4091. grinding a brake groove; 4010. a third driven gear; 4011. a third threaded rod; 4012. a threaded hole; 4013. a guide pin rod; 4014. a guide groove; 4015. a guide seat; 4016. rotating the handle; 5. a fastening mechanism; 501. a guide cylinder; 502. grinding a brake plate; 503. clamping a plate; 504. a card slot; 505. an electric push rod.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-8, the present invention provides a technical solution: a sickbed comprises a bed plate 1 for a patient to lie on, a protection pad 2 for supporting and cushioning the patient in a flexible prone position is arranged in the plate body of the bed plate 1 in a telescopic mode, a driving chamber 4 for regulating and controlling the protection pad 2 to be flexibly telescopic and protruded on the bed surface is arranged at the bottom of the plate body of the bed plate 1, and a fastening mechanism 5 for positioning the protection pad 2 after being telescopic is further arranged in the driving chamber 4;

the protection pad 2 comprises a foot pad 201, a chest pad 202 and a head pad 203 which are arranged in sequence, and the foot pad 201, the chest pad 202 and the head pad 203 are arranged in sequence from the tail of the bed board 1 to the head of the bed;

in this embodiment, the upper portion of the foot pad 201 is provided with two symmetrically arranged grooves 204, each groove 204 is provided with an arc-shaped groove with an opening at the upper end, and the grooves are used for clamping, placing and supporting the foot of the patient;

in this embodiment, the chest pad 202 is configured as a right trapezoid structure, and forms an inclined portion 205 facing the foot pad 201 and a flat portion 206 horizontally arranged, and one end of the flat portion 206 facing the head pad 203 is provided with a placement groove 207 for facilitating the chest of the patient to be inserted for anti-squeezing, and the placement groove is used for supporting the upper body of the patient;

in this embodiment, the upper portion of the head pad 203 is configured as a U-shaped structure, a U-shaped groove 208 is formed inside the head pad, and the U-shaped opening end of the U-shaped groove 208 faces the chest pad 202, so that the face of the patient faces the U-shaped groove 208 to support the head;

in this embodiment, the position of the bed plate 1 corresponding to the foot pad 201, the chest pad 202 and the head pad 203 is sequentially provided with a foot pad groove 101, a chest pad groove 102 and a head pad groove 103 which are matched in a sliding guide manner.

In the embodiment, the driving chamber 4 is a hollow rectangular box-shaped structure, and the end parts of four corners of the driving chamber are fixedly connected with the supporting legs 3 at the bottom of the bed plate 1, so that the driving chamber 4 is stably arranged;

a gear rack 401 is fixedly connected to the interior of the driving chamber 4, a gear groove 402 with one open end is formed in the gear rack 401, and a driving gear 403 is rotatably connected to the interior of the gear groove 402 and provides power through a driving structure at the bottom;

in this embodiment, the driving structure includes a motor 404 fixedly connected to the bottom of the gear groove 402, an output shaft end of the motor 404 passes through the gear rack 401 through a bearing to be connected to the center of the bottom of the driving gear 403 for power driving, and when the upper end surface of the protection pad 2 is arranged to be parallel to the bed surface, the bottom is supported on the gear rack 401;

the bottom of the head pad 203 is fixedly connected with a vertical first threaded rod 405, the bottom of the first threaded rod 405 is in threaded connection with a first driven gear 407, a wheel body of the first driven gear 407 is movably inserted into the gear groove 402, and one end of the first driven gear 407 is meshed with the driving gear 403 and is used for driving the head pad 203 to move telescopically relative to the bed plate 1 through threads to regulate and control the protrusion height;

the bottom of the breast pad 202 is fixedly connected with a vertical second threaded rod 406, the bottom of the second threaded rod 406 is in threaded connection with a second driven gear 408, a wheel body of the second driven gear 408 is movably inserted into the gear groove 402, and one end of the second driven gear 408 is meshed with the driving gear 403 and is used for adjusting and controlling the protrusion height by driving the breast pad 202 to move telescopically relative to the bed plate 1 through threads;

the bottom of the foot pad 201 is provided with third threaded rods 4011 which are movably inserted at intervals;

in the embodiment, the bottom of the foot pad 201 is fixedly connected with an upright guide pin rod 4013, the guide pin rod 4013 comprises a square rod fixedly connected with the foot pad 201, the width of the bottom of a vertical rod is at least 1cm larger than that of the square plate, a guide groove 4014 is formed in the position, corresponding to the bottom of the guide pin rod 4013, on the third threaded rod 4011, the guide groove 4014 is in sliding guide fit with the bottom of the guide pin rod 4013, the guide groove is used for sliding lifting during thread transmission of the third threaded rod 4011, the bottom of the foot pad 201 is also fixedly connected with an annular guide seat 4015 inserted into the top of the third threaded rod 4011 in a matching manner, the bottom of the driving chamber 4 is rotatably connected with an annular rotating handle 4016 through a bearing, the bottom of the third threaded rod 4011 penetrates through the driving chamber 4 and is in threaded connection with a central annular hole of the rotating handle 4016, and the distance between the top of the third threaded rod 4011 and the bottom of the foot pad 201 can be adjusted and controlled by twisting the rotating handle 4016;

the bottom of the third threaded rod 4011 is in threaded connection with a third driven gear 4010, a transmission gear 409 is rotatably connected between the third driven gear 4010 and the second driven gear 408 in the gear groove 402, one opposite ends of the third driven gear 4010 and the second driven gear 408 are meshed with the transmission gear 409, the transmission gear is used for transmission between gear sets and is used for driving the third threaded rod 4011 in the middle of the third driven gear 4010 to move telescopically through threads, and then the foot pad 201 moves telescopically relative to the bed plate 1 to regulate and control the protrusion height;

in this embodiment, terminal surface laminating about the cell body of gear groove 402 and each driven gear, and each threaded rod passes gear groove 402 and the edge leaves the interval and does not collide the contact, and first driven gear 407, correspond each threaded rod in second driven gear 408 and the third driven gear 4010 and advance to offer the screw hole 4012 that is used for screw transmission to use, so that each gear in gear groove 402 is adding spacing screw thread rotation threaded rod removal and support the use about behind the butter, the cell body bottom cooperation each threaded rod of gear groove 402 all offers the hole groove that the bottom touched when avoiding descending simultaneously.

When the motor 404 is started for use, the motor 404 drives the driving gear 403 to rotate clockwise in the gear groove 402, the rotating driving gear 403 drives the first driven gear 407 and the second driven gear 408 which are meshed at two ends to rotate along with the driving gear, the rotating first driven gear 407 and the second driven gear 408 are limited in the gear groove 402 in the up-down direction and are stable, the first driven gear 407 drives the first threaded rod 405 to move upwards through the threaded connection relation, the headrest 203 is driven to move upwards through the guidance of the headrest groove 103, and similarly, the second driven gear 408 drives the headrest 202 through the guidance of the headrest groove 102 to move the headrest 203 upwards through the threads;

in the process, the second driven gear 408 drives the third driven gear 4010 to rotate through the transmission gear 409, the rotating third driven gear 4010 drives the third threaded rod 4011 to ascend through threads, the top of the ascending third threaded rod 4011 is inserted into the guide seat 4015 and ascends along with the foot pad 201, the foot pad 201 ascends to be behind the chest pad 202 and the head pad 203, so that the top surface of the foot pad 201 is lower than the chest pad 202 and the head pad 203, the feet of a patient can be supported obliquely, the patient can lie conveniently, and the foot pad 201, the chest pad 202 and the head pad 203 can be flexibly supported for use by adjusting the stretching amount of the foot pad 201, the chest pad 202 and the head pad 203 according to the needs of the patient;

the fastening mechanism 5 comprises a guide cylinder 501 which is located at the bottom of a gear carrier 401 and communicated with a gear groove 402, an electric push rod 505 is fixedly connected to the inner bottom of the guide cylinder 501, a grinding brake plate 502 is fixedly connected to a piston rod end of the electric push rod 505, a rectangular plate-shaped clamping plate 503 is integrally arranged at the edge of a plate body of the grinding brake plate 502, a clamping groove 504 is formed in the inner wall of the guide cylinder 501, the plate body of the grinding brake plate 502 is horizontally arranged in the guide cylinder 501 in a sliding connection mode, one end of the clamping plate 503 is slidably connected with the clamping groove 504 and is used for pushing and guiding the grinding brake plate 502, the bottom surface of the grinding brake plate 502 movably penetrates through the guide cylinder 501 to be in press contact with the upper surface of a transmission gear 409 and is used for braking the transmission gear 409 to rotate, and then the whole gear transmission set is braked.

In this embodiment, a circular grinding brake groove 4091 is formed in the transmission gear 409 at a position corresponding to the grinding brake plate 502, and the diameter of the grinding brake groove 4091 is greater than the maximum width of the combination of the edge clamping plates 503 of the grinding brake plate 502, so that the grinding brake plate 502 can be aligned to contact with the transmission gear 409 for braking;

stop after motor 404 drive protection pad 2 rises to suitable height, start electric putter 505 and come to push to grind the board 502 of stopping and aim at drive gear 409, grind the board 502 of stopping and contradict drive gear 409 and stop, stop each gear and continue to rotate, avoid each threaded rod to remove, the patient of lying on the stable support protection pad 2 improves the result of use.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a sick bed, is including being used for the disease bed board (1) of lying on one's body, its characterized in that: a protection pad (2) for supporting and cushioning the patient in the flexible prone position is arranged in the plate body of the bed plate (1) in a telescopic manner, a driving chamber (4) for regulating and controlling the protection pad (2) to flexibly stretch and protrude on the bed surface is arranged at the bottom of the plate body of the bed plate (1), and a fastening mechanism (5) for positioning the protection pad (2) after stretching is further arranged in the driving chamber (4);

the protection pad (2) comprises a foot pad (201), a chest pad (202) and a head pad (203) which are arranged in sequence, and the foot pad (201), the chest pad (202) and the head pad (203) are arranged in sequence from the tailstock to the head of the bed board (1);

a gear rack (401) is fixedly connected to the interior of the driving chamber (4), a gear groove (402) with an opening at one end is formed in the gear rack (401), a driving gear (403) is rotatably connected to the interior of the gear groove (402) and provides power through a driving structure at the bottom, a vertical first threaded rod (405) is fixedly connected to the bottom of the headrest (203), a first driven gear (407) is connected to the bottom of the first threaded rod (405) in a threaded manner, a wheel body of the first driven gear (407) is movably inserted into the gear groove (402), one end of the first driven gear (407) is meshed with the driving gear (403), and the threaded driving headrest (203) is used for telescopic movement relative to the bed plate (1) to regulate and control the protrusion height;

the bottom of the breast pad (202) is fixedly connected with a vertical second threaded rod (406), the bottom of the second threaded rod (406) is in threaded connection with a second driven gear (408), a wheel body of the second driven gear (408) is movably inserted into the gear groove (402), one end of the second driven gear (408) is meshed with the driving gear (403), and the second driven gear is used for driving the breast pad (202) to move telescopically relative to the bed plate (1) in a threaded manner so as to adjust and control the protrusion height;

the bottom of the foot pad (201) is provided with movably inserted third threaded rods (4011) at intervals, the bottom of each third threaded rod (4011) is in threaded connection with a third driven gear (4010), a transmission gear (409) is rotatably connected between the third driven gear (4010) and the second driven gear (408) in a gear groove (402), one opposite ends of the third driven gear (4010) and the second driven gear (408) are meshed with the transmission gear (409), the third driven gear (4010) and the second driven gear (408) are used for transmission between gear sets and used for telescopically moving the third threaded rods (4011) in the middle of the third driven gears (4010) in threaded transmission, and then the foot pad (201) telescopically moves relative to the bed plate (1) to regulate and control the protrusion height;

fastening device (5) are including guide cylinder (501) that are located gear carrier (401) bottom and intercommunication gear groove (402), the interior bottom fixedly connected with electric putter (505) of guide cylinder (501), the piston rod end fixedly connected with of electric putter (505) grinds board (502) of stopping, the integration of the plate body border that grinds board (502) of stopping is provided with rectangular plate-like cardboard (503), draw-in groove (504) have been seted up to guide cylinder (501) inner wall, grind in sliding connection guide cylinder (501) that the plate body level of board (502) of stopping was arranged, the one end and draw-in groove (504) sliding connection of cardboard (503), its pass direction that is used for grinding board (502) of stopping, just the bottom surface activity of grinding board (502) is passed guide cylinder (501) and is pressed and is touched drive gear (409) upper surface for stop drive gear (409) and rotate, and then stop whole gear drive group.

2. The hospital bed according to claim 1, wherein: two symmetrically-arranged grooves (204) are formed in the upper portion of the foot pad (201), and each groove (204) is an arc-shaped groove with an upper end opened.

3. The hospital bed according to claim 2, wherein: the chest pad (202) is of a right-angle trapezoid structure, an inclined portion (205) facing the foot pad (201) and a flat portion (206) arranged horizontally are formed, and a placing groove (207) which is convenient for the chest of a patient to be prevented from being squeezed and inserted is formed in one end, facing the head pad (203), of the flat portion (206).

4. The hospital bed according to claim 3, wherein: the upper portion of the head pad (203) is arranged to be of a U-shaped structure, a U-shaped groove (208) is formed inside the head pad, and the U-shaped opening end of the U-shaped groove (208) faces the chest pad (202).

5. The hospital bed according to claim 4, wherein: the positions of the bed plate (1) corresponding to the foot pad (201), the chest pad (202) and the head pad (203) are sequentially provided with a foot pad groove (101), a chest pad groove (102) and a head pad groove (103) which are matched in a sliding guide mode.

6. The hospital bed of claim 5, wherein: the driving chamber (4) is arranged to be a hollow rectangular box-shaped structure, and supporting legs (3) at the bottom of the bed board (1) are fixedly connected to the end parts of the four corners.

7. The hospital bed according to claim 6, wherein: the driving structure comprises a motor (404) fixedly connected to the bottom of a gear groove (402), and the output shaft end of the motor (404) penetrates through a gear rack (401) through a bearing to be connected with the bottom center of a driving gear (403).

8. The hospital bed according to claim 7, wherein: bottom fixedly connected with of callus on the sole (201) guide pin pole (4013) of erectting, guide pin pole (4013) include the square pole of fixed connection callus on the sole (201), and montant bottom fixedly connected with width has 1 cm's square plate at least greatly, guide way (4014) have been seted up in the position that guide pin pole (4013) bottom corresponds on third threaded rod (4011), guide way (4014) and guide pin pole (4013) bottom sliding guide cooperation, annular guide holder (4015) of pegging graft in callus on the sole (201) bottom still fixedly connected with cooperation third threaded rod (4011) top, driving chamber (4) bottom is connected with annular rotation handle (4016) through bearing rotation, driving chamber (4011) bottom is run through driving chamber (4) threaded connection in the center annular hole that rotates handle (4016).

9. The hospital bed according to claim 8, wherein: terminal surface laminating about the cell body of gear groove (402) and each driven gear, and each threaded rod passes gear groove (402) and the edge leaves the interval and does not collide the contact, just correspond each threaded rod in first driven gear (407), second driven gear (408) and third driven gear (4010) and advance to offer screw hole (4012) that are used for the screw drive to use.

10. The hospital bed of claim 9, wherein: the transmission gear (409) is provided with a round grinding brake groove (4091) at a position corresponding to the grinding brake plate (502), and the diameter of the grinding brake groove (4091) is larger than the maximum width of the combination of the edge clamping plates (503) of the grinding brake plate (502).