CN211187846U

CN211187846U - Medical stretcher goes up and down

Info

Publication number: CN211187846U
Application number: CN201921508413.5U
Authority: CN
Inventors: 姜飞; 李积武; 韩银洲
Original assignee: Jiaxing Zhugong Intelligent Equipment Co ltd
Current assignee: Jiaxing Zhugong Intelligent Equipment Co ltd
Priority date: 2019-09-11
Filing date: 2019-09-11
Publication date: 2020-08-07
Anticipated expiration: 2029-09-11

Abstract

The utility model provides a lifting medical stretcher bed, which comprises a stretcher body, a bed board body and a trolley body, wherein the stretcher body is placed on the upper side of the bed board body, the bed board body is fixed on the upper side of the trolley body, the trolley body comprises a base and a lifting platform, a telescopic device is arranged between the base and the lifting platform, a transmission mechanism is arranged between the lifting platform and the bed board body, the lifting platform is connected with the stretcher body through a carrying mechanism, and a balancing device is arranged on the lower side of the base; the distance between the base and the lifting table is adjusted by adopting the telescopic device, so that the stretcher can stably move the wounded and wounded personnel to a sickbed or an operating table or to a stretcher from the operating table or the sickbed at the most appropriate height.

Description

Medical stretcher goes up and down

Technical Field

The utility model relates to a stretcher technical field, concretely relates to medical stretcher goes up and down.

Background

The stretcher is mainly matched with an ambulance for use, is used for containing wounded personnel, is carried to the ambulance, is used for containing the wounded personnel after arriving at a hospital, and is sent to a corresponding department for rescue and treatment, and the wounded personnel can be subjected to excessive vibration in the process, for example, a wounded person with a fractured sternum inserted into viscera can cause the injury deterioration and even direct death after being sent to the hospital and subjected to excessive vibration, so that the important point in the stretcher is vibration prevention, but when the wounded personnel arrive at the hospital and are treated, the wounded personnel need to be moved to a sickbed or an operating table, and the process can generate vibration inevitably.

At present, a stretcher bed capable of automatically moving the wounded and the wounded to a hospital bed or an operating table exists in the market, but the wounded and the wounded cannot be moved to the hospital bed or the operating table due to different operating tables or different heights of the hospital bed in the moving process, and further the wounded and the operating table still need to be manually carried.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

The utility model aims to solve the problem that the stretcher on the market can not adapt to the sickbed or the operating table with various heights, thereby completing the moving problem.

(II) technical scheme

In order to solve the technical problem, the utility model provides a medical stretcher bed with lifting function, which has the characteristics of height adjustment, stable movement, stable center of gravity and labor saving in use.

The utility model provides a pair of medical stretcher goes up and down, including stretcher body, bed board body and car body, the stretcher body is placed at bed board body upside, the bed board body is fixed in car body upside, the car body includes base and elevating platform, be equipped with the telescoping device between base and the elevating platform, be equipped with drive mechanism between elevating platform and the bed board body, the elevating platform passes through transport mechanism with the stretcher body and is connected, the base downside is equipped with balancing unit.

The utility model provides a pair of medical stretcher of going up and down can further set up as the stretcher body includes stretcher pole and stretcher cloth, stretcher cloth both sides are equipped with circular passageway, the stretcher pole penetrates circular passageway fixed, stretcher cloth includes back, buttock, shank and foot.

The utility model provides a lifting medical stretcher bed which can be further arranged that the bed board body comprises a back board, a hip board, leg boards and foot boards; the utility model discloses a leg board, including backplate, buttockss board, leg board, foot board, back board one end and buttockss board one end are articulated, the buttockss board other end is articulated with leg board one end, the leg board other end is articulated with sole one end, the buttockss board is fixed on the elevating platform, backplate, buttockss board, leg board and sole upper surface all are equipped with the cushion.

The utility model provides a lifting medical stretcher bed which can be further arranged in such a way that the positions of the lifting platform close to the two ends are provided with fixed rods, the fixed plates are fixed on the fixed rods, the fixed plates at the two ends are hinged with transmission mechanisms, the transmission mechanism at one side is hinged with a back plate, and the transmission mechanism at the other side is hinged with a foot plate; a protruding plate is fixed on the leg plate, a transmission mechanism is hinged on the protruding plate, and the transmission mechanism on the protruding plate is hinged with the foot plate; the conveying mechanism hinged with the back plate is positioned in the center of the fixed rod, and the conveying mechanisms hinged with the foot plate and the leg plate are respectively positioned on two sides of the central axis of the fixed rod.

The utility model provides a lifting medical stretcher bed which can be further arranged that the telescopic device comprises a bottom plate, a top plate, a connecting rod plate A, a connecting rod plate B and a telescopic mechanism; the bottom plate is fixed at the top of the base, the top plate is fixed under the fixed position of the lifting platform on the hip plate, the two ends of the connecting rod plate A and the two ends of the connecting rod plate B are respectively connected with the bottom plate and the top plate, the connecting rod plate A is positioned on the upper side of the connecting rod plate B, a square hole is formed in the middle of the connecting rod plate B, and the telescopic mechanism penetrates through the square hole to be hinged to the top ends of the base and the connecting rod plate A respectively.

The utility model provides a pair of medical stretcher of going up and down can further set up as transport mechanism includes initiative rotary rod, passive rotary rod and backup pad, the elevating platform both ends all the activity is fixed with the initiative rotary rod, initiative rotary rod one side activity is fixed with passive rotary rod, the backup pad both ends articulate initiative rotary rod and passive rotary rod respectively, be equipped with both sides U-shaped groove structure in the backup pad, the fixed stretcher pole of U-shaped groove structure embedding.

The utility model provides a pair of medical stretcher goes up and down can further set up as the initiative bull stick transmission is connected with the speed reducer, the speed reducer transmission is connected with the motor, the speed reducer all is fixed in the elevating platform inboard with the motor.

The utility model provides a pair of medical stretcher of going up and down can further set up as the elevating platform is close to one side of initiative rotary rod is equipped with fixed rail, the elevating platform opposite side is equipped with movable rail, it is protruding that activity rail bottom is equipped with the cylinder, it is equipped with the U-shaped ring to be close to the protruding both ends of cylinder on the elevating platform, the U-shaped ring of cylinder arch and both sides is articulated through a hinge bar, the hinge bar both ends are connected with the passive rotary rod transmission of both sides respectively, the hinge bar passes the cylinder arch and adopts the key-type connection to fix.

The utility model provides a pair of medical stretcher goes up and down can further set up as be equipped with the universal wheel on the base four corners, the spout activity is fixed in the base bottom to the balancing unit card income, balancing unit roll-off one side is equipped with the bottom side and is equipped with the universal wheel, the elevating platform both sides are equipped with the couple.

The utility model also comprises a using method of the lifting medical stretcher bed, which comprises the following steps;

s1, moving the patient on the stretcher from the ground:

placing the stretcher body under the body of a patient, lifting the stretcher body by a worker, placing the stretcher body on the bed board body, and clamping the stretcher rod into the U-shaped groove structure for fixing;

s2, adjusting the bed board body:

firstly, the stretcher rods on the two sides of the stretcher body are drawn out and placed at the hook positions, and then the back plate, the leg plates and the foot plates are inclined at various angles by adjusting the three transmission mechanisms, so that the most comfortable position for patients is achieved;

s3, moving the patient from the stretcher to a bed or an operating table:

the bed board body is stretched to the same height as a sickbed or an operating table by adjusting the stretching device, the balance device is pulled out, and then the carrying mechanism rotates to move the stretcher body to the sickbed or the operating table;

s4, moving the patient from the operating table or the bed to the stretcher:

the bed board body is stretched to the height same as that of a sickbed or an operating table by adjusting the stretching device, the balance device is pulled out, the carrying mechanism is firstly rotated out, then the stretcher body is placed under the body of a patient, then the stretcher rod of the stretcher body is clamped into the U-shaped groove structure to be fixed, and finally the stretcher body is moved to the bed board body by the rotary carrying mechanism.

(III) advantageous effects

1. The utility model discloses a distance between base and the elevating platform will be adjusted to the telescoping device, and then makes the stretcher can be with the most suitable height, will hinder that the sick personnel is steady remove to sick bed or operating table or from operating table or sick bed on removing the stretcher.

2. The utility model discloses a bottom plate, roof, connecting rod board A, connecting rod board B constitute a parallel four-bar linkage for the base of bottom plate and roof is in the position that is parallel to each other always, and the condition to a lopsidedness can not appear taking place at the in-process that rises.

3. The utility model discloses a drive mechanism adjusts the inclination of backplate, leg board and sole, makes things convenient for medical personnel to carry out the first aid, also can make the trouble of hindering be in more comfortable state through adjusting simultaneously.

4. The utility model discloses be equipped with the couple in elevating platform both sides, place the stretcher pole of taking off through the couple, and then avoided the stretcher pole of taking off to place the condition emergence of being abandoned after other places.

Drawings

Fig. 1 is a schematic view of a stretcher;

fig. 2 is a schematic structural view of the stretcher body;

fig. 3 is a cross-sectional structural view of the stretcher;

FIG. 4 is a bottom view of the elevating platform;

FIG. 5 is a schematic structural view of a carrying mechanism;

FIG. 6 is a schematic view of the connection structure of the movable fence;

FIG. 7 is a schematic view of a hook connection structure;

wherein, 100, stretcher body; 101. a circular channel; 110. a stretcher bar; 120. a stretcher cloth; 121. a back; 122. the buttocks; 123. a leg portion; 124. a foot portion; 200. a bed board body; 201. a back plate; 202. a hip plate; 203. a leg plate; 204. a foot plate; 210. a transmission mechanism; 211. a projecting plate; 220. a soft cushion; 300. a vehicle body; 310. a base; 311. a balancing device; 312. a universal wheel; 320. a lifting platform; 321. fixing the rod; 322. a fixing plate; 323. fixing the fence; 324. a U-shaped ring; 325. a hinged lever; 326. hooking; 330. a movable fence; 331. a cylindrical bulge; 400. a telescoping device; 410. a base plate; 420. a top plate; 430. a link plate A; 440. a link plate B; 441. a square hole; 450. a telescoping mechanism; 500. a carrying mechanism; 510. actively rotating the rod; 511. a speed reducer; 512. a motor; 520. a passive rotating rod; 530. a support plate; 531. u-shaped groove structure.

Detailed Description

The following describes the present invention in further detail with reference to examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.

As shown in fig. 1, a lifting medical stretcher comprises a stretcher body 100, a bed board body 200 and a cart body 300, wherein the stretcher body 100 is placed on the upper side of the bed board body 200, the bed board body 200 is screwed on the upper side of the cart body 300, the cart body 300 comprises a base 310 and a lifting table 320, a telescopic device 400 is arranged between the base 310 and the lifting table 320, a transmission mechanism 210 is arranged between the lifting table 320 and the bed board body 200, the lifting table 320 is connected with the stretcher body 100 through a carrying mechanism 500, and a balancing device 311 is arranged on the lower side of the base 310.

As shown in fig. 2-3, the stretcher body 100 includes a stretcher bar 110 and a stretcher cloth 120, wherein two sides of the stretcher cloth 120 are sewn to form a circular channel 101, the stretcher bar 110 penetrates through the circular channel 101 to be fixed, and the stretcher cloth 120 includes a back 121, a hip 122, legs 123 and feet 124; the bed board body 200 comprises a back board 201, a hip board 202, leg boards 203 and a foot board 204; the upper surfaces of the back plate 201, the hip plate 202, the leg plates 203 and the foot plate 204 are all embedded and fixed with soft pads 220, and the back part 121, the hip part 122, the legs 123 and the feet 124 of the stretcher cloth 120 are correspondingly placed on the back plate 201, the hip plate 202, the leg plates 203 and the foot plate 204.

As shown in fig. 3, one end of the back plate 201 is hinged and fixed to one end of the hip plate 202, the other end of the hip plate 202 is hinged and fixed to one end of the leg plate 203, the other end of the leg plate 203 is hinged and fixed to one end of the foot plate 204, and the hip plate 202 is fixed to the lifting table 320 through screws.

As shown in fig. 3-4, the lifting platform 320 has fixing rods 321 welded to two ends, the fixing rods 321 have fixing plates 322 screwed thereon, the fixing plates 322 are hinged to the transmission mechanism 210 by pins, the transmission mechanism 210 on one side is hinged to the back plate 201 by pins, and the transmission mechanism 210 on the other side is hinged to the foot plate 204 by pins; a protruding plate 211 is fixedly welded on the leg plate 203, a transmission mechanism 210 is hinged on the protruding plate 211 by adopting a pin shaft, and the transmission mechanism 210 on the protruding plate 211 is hinged with the foot plate 204 by adopting a pin shaft; the transmission mechanism hinged with the back plate 201 is located in the center of the fixing rod 321, the transmission mechanisms hinged with the foot plate 204 and the leg plate 203 are respectively located on two sides of the central axis of the fixing rod 321, the transmission mechanisms 210 are electric push rods, the electric push rods are adopted to realize the rotation lifting of the back plate 201, the leg plate 203 and the foot plate 204, and the electric push rods are adjusted to proper positions to enable wounded personnel to be more comfortable, so that the wounded personnel can conveniently carry out first aid by medical personnel.

As shown in fig. 3, the telescoping device 400 includes a bottom plate 410, a top plate 420, a link plate a430, a link plate B440, and a telescoping mechanism 450; wherein bottom plate 410 fix with screw at base 310 top, roof 420 fix with screw is under elevating platform 320 in buttockss board 202 fixed position, connecting rod board A430 and connecting rod board B440 both ends adopt the round pin axle to articulate respectively and connect bottom plate 410 and roof 420, connecting rod board A430 is located connecting rod board B440 upside, connecting rod board B440 middle part has been seted up square hole 441, telescopic machanism 450 passes square hole 441 and adopts the round pin axle to articulate with base 310 and connecting rod board A430 top respectively, specific telescopic machanism 450 is the electric putter, adopt the electric putter to promote roof 420 upward movement, simultaneously because bottom plate 410, roof 420, connecting rod board A430 and connecting rod board B440 constitute parallel four-bar linkage, meeting roof 420 can not take place the slope.

As shown in fig. 5, the carrying mechanism 500 includes an active rotating rod 510, a passive rotating rod 520 and a supporting plate 530, the active rotating rod 510 is movably fixed at both ends of the lifting platform 320, the passive rotating rod 520 is movably fixed at one side of the active rotating rod 510, both ends of the supporting plate 530 are respectively hinged to the active rotating rod 510 and the passive rotating rod 520 by bolts, a U-shaped groove structure 531 is formed on the supporting plate 530, and the U-shaped groove structure 531 is used for embedding and fixing the stretcher bar 110.

As shown in fig. 4, the driving rotating rod 510 is connected with a speed reducer 511 in a transmission manner, the speed reducer 511 is connected with a motor 512 in a transmission manner through a transmission rod, the motor 512 is fixed on the speed reducer 511 through a connecting disk screw, the speed reducer 511 and the driving rotating rod 510 are connected in a key manner through the transmission rod, and the speed reducer 511 is fixed on the inner side of the lifting platform 320 through a flange plate screw.

As shown in fig. 5-6, a fixed rail 323 is fixed to one side of the lifting platform 320 close to the active rotating rod 510 by screws, a movable rail 330 is arranged on the other side of the lifting platform 320, a cylindrical protrusion 331 is integrally formed at the bottom of the specific movable rail 330, U-shaped rings 324 are fixed to the lifting platform 320 close to two ends of the cylindrical protrusion 331 by screws, the cylindrical protrusion 331 is hinged to the U-shaped rings 324 at two sides by a hinge rod 325, two ends of the hinge rod 325 are respectively connected with the passive rotating rods 520 at two sides by keys, and the hinge rod 325 passes through the cylindrical protrusion 331 and is fixed by keys.

As shown in fig. 1 and 7, universal wheels 312 are fixed on four corners of the base 310 by screws, the balancing device 311 is movably fixed at the bottom of the base 310 by being clamped into a sliding slot, that is, a clamping slot is formed in the balancing device 311, a clamping block is arranged at the bottom of the base 310, and the clamping slot is clamped into the clamping block for connection, so that the balancing device 311 can slide along the clamping block, the universal wheels 312 are fixed on the bottom side of the balancing device 311 by screws, and hooks 326 are connected to two sides of the lifting table 320 by screws for placing the taken down stretcher bar 110.

A method for using a lifting medical stretcher comprises the following steps;

s1, moving the patient on the stretcher from the ground:

when the stretcher is used, the stretcher body 100 is placed under the body of a patient, two ways can be adopted, namely, the first way is to place the stretcher cloth 120 at the lower side of the body of the patient, then the stretcher bar 110 penetrates through the circular channels 101 at the two sides to form the stretcher body 100, and the second way is to lift the patient and place the patient on the stretcher body 100; after the injured person is placed on the stretcher body 100, the worker holds the stretcher bar 110 to lift the stretcher body 100 and place it on the bed plate body 200, and then the stretcher bar 110 is inserted into the U-shaped groove structure 531 to be fixed.

S2, adjusting the bed board body 200:

the stretcher bars 110 on both sides of the stretcher body 100 are firstly drawn out and placed at the position of the hook 326, and then the back plate 201, the leg plates 203 and the foot plates 204 are inclined at various angles by adjusting the three transmission mechanisms 210, specifically, the transmission mechanism 210 hinged with the back plate 201 can be opened, the back plate 201 can rotate around the hip plates 202 until the back plate rotates to a comfortable angle, and the transmission mechanism 210 is stopped, the transmission mechanism 210 hinged with the leg plates 203 can be opened, the leg plates 203 can rotate around the hip plates 202 until the leg plates rotate to a comfortable angle, and the transmission mechanism 210 can be stopped by opening the transmission mechanism 210 hinged with the foot plates 204, the foot plates 204 can rotate around the leg plates 203 until the leg plates rotate to a comfortable angle.

S3, moving the patient from the stretcher to a bed or an operating table:

the bed board body 200 is stretched to the same height as a sickbed or an operating table by adjusting the stretching device 400, the balancing device 311 is pulled out, and then the carrying mechanism 500 rotates to move the stretcher body 100 to the sickbed or the operating table; specifically, the stretching mechanism 450 is firstly opened to push the top plate 420 to move upwards, meanwhile, the top part of the top plate 420 is kept horizontal all the time by the connecting rod plate A430 and the connecting rod plate B440 until the bed board body 200 rises to the same height as a sickbed or an operating table, then the balancing device 311 is pulled out, the motors 512 at two sides are then opened, the motors 512 at two sides rotate to drive the transmission rods to rotate, the transmission rods drive the transmission rods connected with the active rotating rods 510 to rotate slowly through the speed reducer 511, the transmission rods drive the active rotating rods 510 to rotate, the active rotating rods 510 drive the supporting plate 530 to move to one side, the stretcher body 100 moves along with the supporting plate 530, the supporting plate 530 drives the passive rotating rods 520 to rotate, the passive rotating rods 520 rotate to drive the hinge rods 325 to rotate, the hinge rods 325 drive the movable fences 330 to rotate, and when, after the stretcher bar 110 is pulled out, the stretcher bar is placed on the hook 326, the motors 512 on the two sides rotate, the movable fence 330 also rotates to the original position, the active rotating rod 510 and the passive rotating rod 520 also rotate to the original position, then the motors 512 on the two sides are stopped, and the stretcher cloth 120 is taken out after the wounded person is out of danger.

S4, moving the patient from the operating table or the bed to the stretcher:

adjusting the telescopic device 400 to extend the bed board body 200 to the same height as a sickbed or an operating table, pulling out the balance device 311, rotating out the carrying mechanism 500, placing the stretcher body 100 under the body of a patient, clamping the stretcher rod 110 of the stretcher body 100 into the U-shaped groove structure 531 for fixing, and finally rotating the carrying mechanism 500 to move the stretcher body 100 onto the bed board body 200; specifically, the stretching mechanism 450 is firstly opened to push the top plate 420 to move upwards, meanwhile, the connecting rod plate A430 and the connecting rod plate B440 enable the upper part of the top plate 420 to be kept horizontal all the time until the bed board body 200 rises to the same height as a sickbed or an operating table, then the balancing device 311 is pulled out, the motors 512 on the two sides are then started, at the moment, the motors 512 on the two sides rotate to drive the transmission rod to rotate, the transmission rod drives the transmission rod connected with the driving rotating rod 510 to rotate slowly through the speed reducer 511, the transmission rod drives the driving rotating rod 510 to rotate, the driving rotating rod 510 drives the supporting plate 530 to move towards one side, the stretcher body 100 moves along with the supporting plate 530, the supporting plate 530 drives the driven rotating rod 520 to rotate, the driven rotating rod 520 rotates to drive the hinge rod 325 to rotate, the hinge rod 325, the stretcher bar 110 is taken down from the hook 326 and inserted into the circular channel 101 again, then the stretcher bar 110 is clamped into the U-shaped groove structure 531 to be fixed, then the motors 512 on the two sides rotate, the movable fence 330 also rotates back to the original position, the active rotating rod 510 and the passive rotating rod 520 also rotate back to the original position, then the motors 512 on the two sides are stopped, and at the moment, the wounded person is stably placed on the stretcher.

As described above, the above embodiments are not limiting embodiments of the present invention, and modifications or equivalent variations made by those skilled in the art based on the substance of the present invention are within the technical scope of the present invention.

Claims

1. The utility model provides a medical stretcher goes up and down, its characterized in that, includes stretcher body, bed board body and car body, the stretcher body is placed at bed board body upside, the bed board body is fixed in car body upside, the car body includes base and elevating platform, be equipped with the telescoping device between base and the elevating platform, be equipped with drive mechanism between elevating platform and the bed board body, the elevating platform passes through transport mechanism with the stretcher body and is connected, the base downside is equipped with balancing unit.

2. The liftable medical stretcher according to claim 1, wherein the stretcher body comprises stretcher bars and a piece of stretcher cloth, circular channels are provided on both sides of the piece of stretcher cloth, the stretcher bars are fixed by penetrating the circular channels, and the piece of stretcher cloth comprises a back, a hip, legs and feet.

3. The elevating medical stretcher of claim 1 wherein the bed board body comprises a back board, a hip board, a leg board and a foot board; the utility model discloses a leg board, including backplate, buttockss board, leg board, foot board, back board one end and buttockss board one end are articulated, the buttockss board other end is articulated with leg board one end, the leg board other end is articulated with sole one end, the buttockss board is fixed on the elevating platform, backplate, buttockss board, leg board and sole upper surface all are equipped with the cushion.

4. The lifting medical stretcher according to claim 3, wherein the lifting table is provided with a fixing rod near both ends, the fixing rod is fixed with a fixing plate, the fixing plates at both ends are hinged with a transmission mechanism, the transmission mechanism at one side is hinged with the back plate, and the transmission mechanism at the other side is hinged with the foot plate; a protruding plate is fixed on the leg plate, a transmission mechanism is hinged on the protruding plate, and the transmission mechanism on the protruding plate is hinged with the foot plate; the conveying mechanism hinged with the back plate is positioned in the center of the fixed rod, and the conveying mechanisms hinged with the foot plate and the leg plate are respectively positioned on two sides of the central axis of the fixed rod.

5. The elevating medical stretcher of claim 3 wherein said telescoping means comprises a base plate, a top plate, a link plate A, a link plate B and a telescoping mechanism; the bottom plate is fixed at the top of the base, the top plate is fixed under the fixed position of the lifting platform on the hip plate, the two ends of the connecting rod plate A and the two ends of the connecting rod plate B are respectively connected with the bottom plate and the top plate, the connecting rod plate A is positioned on the upper side of the connecting rod plate B, a square hole is formed in the middle of the connecting rod plate B, and the telescopic mechanism penetrates through the square hole to be hinged to the top ends of the base and the connecting rod plate A respectively.

6. The liftable medical stretcher according to claim 2, wherein the carrying mechanism comprises an active rotating rod, a passive rotating rod and a supporting plate, the active rotating rod is movably fixed at both ends of the lifting platform, the passive rotating rod is movably fixed at one side of the active rotating rod, the active rotating rod and the passive rotating rod are respectively hinged at both ends of the supporting plate, a two-sided U-shaped groove structure is arranged on the supporting plate, and the U-shaped groove structure is embedded in the fixed stretcher rod.

7. The elevating medical stretcher as claimed in claim 6, wherein the driving rotary rod is connected with a speed reducer in a transmission manner, the speed reducer is connected with a motor in a transmission manner, and the speed reducer and the motor are both fixed inside the elevating table.

8. The medical elevating stretcher according to claim 6, wherein a fixed rail is arranged on one side of the elevating platform close to the active rotating rod, a movable rail is arranged on the other side of the elevating platform, a cylindrical protrusion is arranged at the bottom of the movable rail, U-shaped rings are arranged on the elevating platform close to two ends of the cylindrical protrusion, the cylindrical protrusion is hinged to the U-shaped rings on two sides through a hinge rod, two ends of the hinge rod are respectively connected with the passive rotating rod on two sides in a transmission manner, and the hinge rod penetrates through the cylindrical protrusion and is fixed through key connection.

9. The lifting medical stretcher according to any one of claims 1 to 8, wherein universal wheels are arranged on four corners of the base, the balancing device is clamped into the sliding groove and movably fixed on the bottom of the base, the universal wheels are arranged on the bottom side of the sliding side of the balancing device, and hooks are arranged on two sides of the lifting table.