CN106667674B - A kind of wounded's transfer device - Google Patents

Abstract

The invention provides a wounded transfer device, which belongs to the technical field of medical equipment. It solves the laborious problem of carrying the existing stretcher. The wounded transfer device includes a mobile frame and a stretcher. The mobile frame includes a moving frame and a supporting frame. Rollers are hinged on the moving frame. The supporting frame is connected to the moving frame through two pairs of support rods. There is an adjustment piece capable of adjusting the height of the support frame. The stretcher includes a support plate, the support plate is hinged with legs, the legs are hinged with moving wheels, the support plate is provided with a driver, and the two long side bars of the support frame are provided with guide grooves. The wheels can roll along the guide groove, and when the legs of the stretcher swing to abut against the lower side of the support plate, the legs can be horizontally embedded in the guide groove. The device for transferring the wounded makes it more convenient and labor-saving for the wounded to get on and off the ambulance.

Description

A wounded transfer device

technical field

The invention belongs to the technical field of medical equipment, and relates to a wounded transfer device.

Background technique

Stretchers are relatively common medical equipment used to transport the disabled. Usually, ambulances are equipped with stretchers, which are convenient for patients and wounded to lie down. Due to the heavy weight of the stretcher itself and the weight of the wounded, it is laborious to carry it. And because the ambulance has a certain height, it is difficult to carry the stretcher on the ambulance if there are not enough people, which will delay the treatment time.

Contents of the invention

The object of the present invention is to solve the above-mentioned problems in the prior art, and propose a wounded transfer device, which makes it more convenient and labor-saving for the wounded to get on and off the ambulance.

The purpose of the present invention can be achieved through the following technical solutions: a device for transferring the wounded, comprising a mobile frame and a stretcher, the mobile frame includes a rectangular mobile frame and a supporting frame, and the lower side of the mobile frame is hinged There are rollers, the supporting frame is connected to the moving frame through two pairs of supporting rods, and the supporting frame is located above the moving frame, and the moving frame is provided with an adjustment member capable of adjusting the height of the supporting frame, so The stretcher includes a rectangular support plate, two rod-shaped legs are hinged on both sides of the lower side of the support plate along the length direction, and the free ends of the legs are hinged with moving wheels. The driver for driving the legs to swing. The upper sides of the two long side bars of the support frame are provided with guide grooves along the length direction. The above-mentioned moving wheels can roll along the guide grooves. The supporting legs can be horizontally embedded in the guide groove when abutting against each other, and the supporting frame is provided with a positioning piece capable of locking several supporting legs when the supporting legs are embedded in the guiding groove.

When in use, the supporting frame is lowered by the adjusting part, so that the supporting frame is close to the ground, and the positioning part is released, so that the four legs of the stretcher can swing under the action of the driving part, that is, the legs are unfolded. At this time, the moving wheels on the legs can resist Lean against the guide groove to support the support plate, pull the stretcher, so that the stretcher moves to the ground along the guide groove, and then directly lift the wounded onto the stretcher, or use the driving part to make the legs fold first, that is, the support plate is attached to the stretcher. On the ground, it is more labor-saving and convenient for the wounded to move to the support plate, and it also reduces the secondary injury to the wounded. Then the legs are expanded through the driving part and moved to the support frame, and then the legs are folded through the driving part. At this time, the legs can be horizontal Embed in the guide groove, and then lock the feet through the positioning piece, so that the stretcher is positioned on the support frame, then push the mobile frame to the side of the ambulance, adjust the height of the support frame through the adjustment piece, so that the bottom surface of the guide groove is in line with the height of the ambulance The bottom surface is flush, so the stretcher can be directly pushed from the support frame into the ambulance after the legs are unfolded, without the need for multiple people to lift the stretcher into the ambulance, the operation is labor-saving and convenient, and it is also more stable during the movement of the bottom frame , to reduce secondary damage to the wounded.

In the above-mentioned transfer device for the wounded, the stretcher also includes four transmission rods, two chute parallels are provided on the lower side of the support plate along the length direction, and two chute connections are slidably connected in each chute. One end of the transmission rod is hinged on the side of the support foot, the other end is hinged on the side of the slider, and the above-mentioned driving member is connected with the slider.

When the support legs are unfolded, the transmission rod is inclinedly supported on the support legs, so that the support legs remain stable, and when the slider moves, the support legs can be driven to swing.

In the above-mentioned wounded transfer device, the driving member includes two driving screws, which are respectively rotatably connected in the two slide grooves. holes, and the two sliders in the same chute are threadedly connected to the two ends of the drive screw respectively through screw holes, and the support plate is also provided with a control handle that can drive the two drive screws to rotate simultaneously. The sliding block is driven to move by driving the screw rod, thereby driving the legs to swing, and the driving screw rod has self-locking ability, and the operation handle is more labor-saving when driving the driving screw rod to rotate.

In the above-mentioned wounded transfer device, the end of the support plate has an end plate perpendicular to the support plate, the control handle is connected to the outer surface of the end plate in rotation, and the control handle is fixedly connected with an active Pulley 1, driven pulley 1 is fixedly connected to the ends of the two driving screws, and driven pulley 1 is connected with driven pulley 1 through a belt. The joystick drives the two driving screws to rotate simultaneously through the pulley transmission, which not only saves labor, but also ensures the synchronization of the four legs, so that the support plate remains stable.

In the above-mentioned wounded transfer device, the free end of the support leg is provided with an insertion hole, and a telescopic rod is slidably inserted into the insertion hole, and the above-mentioned moving wheel is hinged on the outer end of the telescopic rod, A buffer spring is provided, one end of the buffer spring is fixedly connected to the bottom surface of the insertion hole, and the other end is fixedly connected to the inner end of the telescopic rod. The supporting legs lean against the ground through the moving wheels on the telescopic rod. The buffer spring has a buffering capacity, which can reduce the bumps in the stretcher moving process. The buffer spring is also used to cooperate with the locating piece to lock the supporting legs in the positioning groove.

In the above-mentioned patient transfer device, the positioning member includes a positioning block, and guide holes are provided at both ends of the bottom surface of the guide groove, and the lower end of the guide hole penetrates to the lower side of the supporting frame, and the positioning block is slidably inserted In the guide hole, a pull rod is fixed vertically on the lower side of the positioning block, and a connecting pin is vertically arranged on the pull rod, and a tension spring is also sleeved on the pull rod, and the upper end of the tension spring is fixedly connected under the supporting frame. On the side, the lower end is fixedly connected to the connecting pin. Under the action of the tension spring, the upper end of the positioning block extends into the guide groove. The side of the positioning block is provided with an arc-shaped positioning groove. When the supporting foot is horizontally embedded in the guide groove , the moving wheel is pressed against the positioning groove under the effect of the buffer spring. After the pull rod is released, the tension spring can make the positioning block rise. At this time, under the action of the buffer spring, the moving wheel is pressed against the positioning groove of the positioning block, so as to position the foot. When unlocking, the positioning block is pulled down, and the telescopic rod can be properly retracted. Inserting the supporting foot makes the moving wheel move out of the positioning groove, the structure is simple and the operation is convenient.

In the above-mentioned wounded transfer device, the lower side of the two long side bars of the supporting frame and the upper side of the two long side bars of the moving frame are provided with dovetail grooves along the length direction, and each pair of supporting bars is arranged crosswise, and the same The supporting rods are hinged at the intersections through pin shafts, and connecting blocks are hinged at both ends of the supporting rods, and the connecting blocks at both ends of the supporting rods are respectively slidably connected in the dovetail grooves of the supporting frame and the moving frame. The connecting block can slide along the dovetail groove, but cannot be disengaged, so that the support frame can be raised and lowered smoothly.

In the above-mentioned wounded transfer device, the adjustment member includes two adjustment screws, and the two adjustment screws are respectively rotatably connected in the two dovetail grooves of the moving frame. The connecting blocks are threadedly connected to the two ends of the adjusting screw, and the ends of the adjusting screw are fixedly connected with the second driven pulley, and the moving frame is fixedly connected with a connecting seat, and the connecting seat is rotatably connected with a The second control handle is fixedly connected with the second driving pulley, and the second driving pulley is connected with the second driven pulley through a belt. The two adjustment screw rods are simultaneously driven to rotate by the control handle two, which not only saves labor and is convenient to operate, but also can ensure the synchronization of the swing of the two pairs of support rods, so that the support frame can be lifted and lowered stably.

In the above-mentioned wounded transfer device, one end of the support frame is hinged with two guide tubes, and guide rods are slidably inserted into the guide tubes, and the two guide rods are fixedly connected by cross bars. Spring, one end of the support spring is fixedly connected to the bottom surface of the guide tube, and the other end is fixedly connected to the guide rod. Under the action of the support spring, the guide rod can tilt against the ground, and the upper side of the guide tube and the guide rod Limiting grooves are provided along the length direction on the top, and when the guiding pipe is inclined, the limiting groove on the guiding pipe is in contact with the guiding groove. When the support frame is lowered, the guide tube can swing outwards and make the guide bar tilt outwards and lean against the ground, so even if the support frame has a certain distance from the ground, the moving wheels of the stretcher can also move along the guide bar and the ground. The limit groove on the guide tube is moved to the support frame, so that the stretcher is moved to the support frame more labor-saving and convenient.

In the above-mentioned wounded transfer device, the end of the mobile frame has two positioning seats, and grooves are provided on the upper side of the positioning seats. When the guide tube and the guide rod are vertical, the support spring will The lower end of the lower guide rod is pressed in the groove. The positioning seat can position the guide rod when the guide rod is not in use, so as to avoid shaking during movement.

Compared with the prior art, this device for transferring the wounded has the following advantages:

1. Since the height of the support frame is adjusted by the adjusting part, the bottom surface of the guide groove is flush with the bottom surface of the ambulance, so after the legs are unfolded, the stretcher can be directly pushed from the support frame into the ambulance without multiple people pushing The stretcher is lifted into the ambulance, which is labor-saving and convenient to operate, and it is also more stable during the movement of the underframe, reducing secondary injuries to the wounded.

2. Since the supporting legs lean against the ground through the moving wheels on the telescopic rod, the buffer spring has a buffering capacity, which can reduce the bumps during the stretcher's moving process.

3. Since the guide rod can tilt outward and lean against the ground, even if the support frame has a certain distance from the ground, the moving wheels of the stretcher can also move to the support along the limit groove on the guide rod and the guide tube. On the frame, it is more labor-saving and convenient to move the stretcher to the supporting frame.

Description of drawings

Fig. 1 is a three-dimensional structural schematic diagram of the device for transferring the wounded.

Fig. 2 is a three-dimensional structural schematic diagram of the stretcher.

Fig. 3 is a three-dimensional structural schematic diagram of the mobile frame.

Fig. 4 is a structural cross-sectional view of the device for transferring the wounded.

Fig. 5 is an enlarged view of the structure at A in Fig. 4 .

In the figure, 1, mobile frame; 11, mobile frame; 111, roller; 112, positioning seat; 113, groove; 12, support frame; 121, guide groove; 122, guide hole; 13, support rod; 2 , adjusting part; 21, adjusting screw; 22, control handle two; 23, driving pulley two; 24, driven pulley two; 3, dovetail groove; 31, connecting block; 4, positioning piece; 41, positioning block; 411, positioning groove; 42, pull rod; 43, connecting pin; 44, extension spring; 5, guide pipe; 51, guide rod; 52, limit groove; 53, support spring; 6, stretcher; 61, support plate; 611 , chute; 612, end plate; 7, support foot; 71, socket hole; 72, telescopic rod; 73, buffer spring; 74, moving wheel; 75, transmission rod; 76, slider; 8, driver; 81 , drive screw; 82, joystick one; 83, driving pulley one; 84, driven pulley one.

detailed description

The following are specific embodiments of the present invention and in conjunction with the accompanying drawings, the technical solutions of the present invention are further described, but the present invention is not limited to these embodiments.

As shown in Figures 1 to 5, a device for transferring the wounded includes a mobile frame 1 and a stretcher 6. The mobile frame 1 includes a rectangular mobile frame body 11 and a support frame body 12, and the lower side of the mobile frame body 11 is hinged with a Roller 111, the support frame 12 is connected on the mobile frame 11 through two pairs of support rods 13, and the support frame 12 is located above the mobile frame, and the movable frame 11 is provided with an adjustment member capable of adjusting the height of the support frame 12 2. The stretcher 6 includes a rectangular support plate 61. Two rod-shaped legs 7 are hinged on both sides of the lower side of the support plate 61 along the length direction, that is, there are four legs 7, which are respectively arranged on the upper edge of the lower side of the support plate 61. On both sides of the length direction, the free ends of the legs 7 are hinged with moving wheels 74, the support plate 61 is provided with a driver 8 that can drive the legs 7 to swing, and the upper sides of the two long side bars of the support frame 12 are aligned along the length direction. A guide groove 121 is provided, and the moving wheel 74 can roll along the guide groove 121. When the leg 7 of the stretcher 6 swings to abut against the lower side of the support plate 61, the leg 7 can be embedded in the guide groove 121 horizontally. There is a positioning piece 4 capable of locking several legs 7 when the legs 7 are embedded in the guide groove 121 .

When in use, the supporting frame 12 is lowered by the adjusting part 2, so that the supporting frame 12 is close to the ground, and the positioning part 4 is released, so that the legs 7 on the stretcher 6 can swing under the action of the driving part 8, that is, the four legs 7 are unfolded, At this time, the moving wheels 74 on the legs 7 can lean against the guide groove 121 to support the support plate 61, pull the stretcher 6, so that the stretcher 6 moves to the ground along the guide groove 121, and then the wounded can be directly lifted onto the stretcher 6 , it is also possible to make the four legs 7 gather first through the driver 8, that is, the support plate 61 is attached to the ground, so that the wounded can move to the support plate 61 more labor-saving and convenient, and also reduce the secondary injury to the wounded, and then pass the driver. 8. Unfold the legs 7 and move them to the support frame 12, and then gather the legs 7 through the driver 8. At this time, the legs 7 can be horizontally embedded in the guide groove 121, and then the legs 7 are locked by the positioning member 4, so that the stretcher 6 is positioned. On the support frame 12, then push the mobile frame 1 to the side of the ambulance, and adjust the height of the support frame 12 through the adjustment member 2, so that the bottom surface of the guide groove 121 is flush with the bottom surface of the ambulance, so after the support legs 7 are deployed, they can directly Push the stretcher 6 from the support frame 12 into the ambulance, without the need for many people to lift the stretcher 6 into the ambulance, the operation is labor-saving and convenient, and the movement of the base frame is also more stable, reducing secondary injuries to the wounded .

Specifically, the stretcher 6 also includes four transmission rods 75, and the lower side of the support plate 61 is provided with two chute 611 in parallel along the length direction, and each of the chute 611 is slidingly connected with two Slider 76, described support foot 7, transmission rod 75 and slide block 76 correspond one by one, namely each support foot 7 corresponds to a transmission rod 75 and a slide block 76, and one end of described transmission rod 75 is hinged on the side of support foot 7 , the other end is hinged on the side of the slider 76, and the above-mentioned driver 8 is connected with the slider 76. When the supporting foot 7 is unfolded, the transmission rod 75 is inclinedly supported on the supporting foot 7, so that the supporting foot 7 remains stable, and when the slider 76 moves, the supporting foot 7 can be driven to swing.

Specifically, the driving member 8 includes two driving screws 81, which are respectively rotatably connected in two slide grooves 611, the screw threads at both ends of the driving screw 81 are opposite in direction, and the slider 76 is provided with screw holes, and the same Two slide blocks 76 in the chute 611 are threadedly connected to the two ends of the drive screw rod 81 respectively by screw holes, and the support plate 61 is also provided with a joystick 82 that can drive the two drive screw rods 81 to rotate simultaneously, and the drive screw rod 81 drives The sliding block 76 moves, thereby driving the supporting foot 7 to swing, and the driving screw 81 has self-locking ability, and it is more labor-saving when the operating handle drives the driving screw 81 to rotate.

Specifically, the end of the support plate 61 is vertically provided with an end plate 612, and the handle 182 is rotatably connected to the outer surface of the end plate 612. All parts are fixedly connected with a driven pulley 84, the driving pulley 83 is connected with the driven pulley 84 through a belt, and the control handle 1 82 drives the two driving screw rods 81 to rotate simultaneously through the pulley transmission, which not only saves labor, Moreover, the synchronization of the four legs 7 can be guaranteed, so that the support plate 61 remains stable.

Specifically, the free end of the leg 7 is provided with an insertion hole 71, and a telescopic rod 72 is slidably inserted in the insertion hole 71, and the moving wheel 74 is hinged on the outer end of the telescopic rod 72, and a buffer spring is arranged in the insertion hole 71. 73. One end of the buffer spring 73 is fixedly connected to the bottom surface of the socket hole 71, and the other end is fixedly connected to the inner end of the telescopic rod 72. The supporting leg 7 leans against the ground through the moving wheel 74 on the telescopic rod 72. The buffer spring 73 has The cushioning capacity can reduce the bumps during the movement of the stretcher 6 , and the cushioning spring 73 is also used to cooperate with the positioning member 4 to lock the supporting foot 7 in the positioning groove 411 .

Specifically, the positioning member 4 includes a positioning block 41, and guide holes 122 are provided at both ends of the bottom surface of the guide groove 121. The lower end of the guide hole 122 penetrates to the lower side of the support frame 12, and the positioning block 41 is slidably inserted into the guide hole. 122, the lower side of the positioning block 41 is vertically fixedly connected with a pull rod 42, and the pull rod 42 is vertically provided with a connecting pin 43. On the pull rod 42, an extension spring 44 is also sleeved, and the upper end of the extension spring 44 is fixedly connected to the supporting frame. 12 on the lower side, the lower end is fixedly connected on the connecting pin 43, and under the action of the extension spring 44, the upper end of the positioning block 41 stretches into the guide groove 121, and the side of the positioning block 41 is provided with an arc-shaped positioning groove 411. When the supporting foot 7 is embedded in the guide groove 121 horizontally, the moving wheel 74 is pressed against the positioning groove 411 under the action of the buffer spring 73, and the extension spring 44 can make the positioning block 41 rise after the pull rod 42 is released. The lower moving wheel 74 presses against the positioning groove 411 of the positioning block 41, thereby positioning the supporting foot 7, and when unlocking, the positioning block 41 is pulled down, and the telescopic rod 72 can be properly retracted into the supporting foot 7, so that the moving wheel 74 moves out of the positioning groove 411 , simple structure and convenient operation.

Specifically, the lower sides of the two long side bars of the supporting frame 12 and the upper sides of the two long side bars of the moving frame body 11 are provided with dovetail grooves 3 along the length direction, and each pair of support bars 13 is arranged crosswise, and the same pair of support bars The rods 13 are hinged at the intersection by pin shafts, and the two ends of the support rod 13 are hinged with connection blocks 31, and the connection blocks 31 at both ends of the support rod 13 are slidably connected to the dovetail grooves 3 of the support frame 12 and the mobile frame 11 respectively. Inside, the connecting block 31 can slide along the dovetail groove 3, but cannot be disengaged, so that the support frame 12 can be raised and lowered smoothly. The adjustment member 2 includes two adjustment screws 21, which are respectively rotatably connected in the two dovetail grooves 3 of the moving frame body 11. The screw threads at both ends of the two adjustment screws 21 have opposite helical directions, and the connecting blocks 31 at the lower ends of the same pair of support rods 13 The two ends of the adjusting screw rod 21 are threaded respectively, and the ends of the adjusting screw rod 21 are fixedly connected with a driven pulley 24, and the moving frame body 11 is fixedly connected with a connection seat, and the connection seat is connected with a control handle 222 for rotation. The two driving pulleys 22 are fixedly connected with the two driving pulleys 23, the two driving pulleys 23 are connected with the two driven pulleys 24 by belts, and the two adjusting screw rods 21 are driven to rotate by the two operating handles 22, which is not only labor-saving and convenient, but also The synchronization of the swing of the two pairs of support rods 13 can be guaranteed, so that the support frame 12 can be lifted and lowered smoothly.

Specifically, one end of the support frame 12 is hinged with two guide tubes 5, and guide rods 51 are slidably inserted into the guide tubes 5. 53, one end of the support spring 53 is fixedly connected to the bottom surface of the guide tube 5, and the other end is fixedly connected to the guide rod 51. Under the action of the support spring 53, the guide rod 51 can tilt against the ground, and the guide tube 5 and the guide On the upper side of bar 51, limit groove 52 is provided along the length direction. When guide tube 5 is tilted, limit groove 52 on guide tube 5 is connected with guide groove 121. When support frame body 12 descends, guide tube 5 can Swing outward and make the guide bar 51 tilt outwards and lean against the ground, so even if the support frame 12 has a certain distance from the ground, the moving wheels 74 of the stretcher 6 can also move along the guide bar 51 and the guide tube 5. The limiting groove 52 moves to the support frame body 12, so that the stretcher 6 moves to the support frame body 12 more labor-saving and convenient. The end of mobile frame body 11 has two locating seats 112, and the upper side of locating seats 112 is all provided with groove 113, when guide tube 5 and guide rod 51 are vertical, under the effect of supporting spring 53, guide rod 51 will The lower end is pressed against the groove 113, and the positioning seat 112 can position the guide rod 51 when the guide rod 51 is not in use, so as to avoid shaking during the movement.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Those skilled in the art to which the present invention belongs can make various modifications or supplements to the described specific embodiments or adopt similar methods to replace them, but they will not deviate from the spirit of the present invention or go beyond the definition of the appended claims range.

Claims (8)

1. A device for transferring the wounded, comprising a mobile frame (1) and a stretcher (6), characterized in that the mobile frame (1) comprises a rectangular mobile frame (11) and a support frame (12), Rollers (111) are hinged on the lower side of the moving frame (11), the supporting frame (12) is connected to the moving frame (11) by two pairs of support rods (13), and the supporting frame (12) ) is located above the moving frame (11), the moving frame (11) is provided with a regulator (2) capable of adjusting the height of the supporting frame (12), and the stretcher (6) includes a rectangular support plate ( 61), the lower side of the support plate (61) is hinged with two rod-shaped legs (7) on both sides along the length direction, and the free ends of the legs (7) are hinged with moving wheels (74). The support plate (61) is provided with a driver (8) capable of driving the swing of the legs (7), and guide grooves (121) are provided on the upper sides of the two long side bars of the support frame (12) along the length direction. , the above moving wheel (74) can roll along the guide groove (121), and when the leg (7) of the stretcher (6) swings to the lower side of the support plate (61), the leg (7) can be horizontally embedded in the guide groove ( 121), the support frame (12) is provided with a positioning piece (4) that can lock several legs (7) when the legs (7) are embedded in the guide groove (121); The stretcher (6) also includes four transmission rods (75), and the underside of the support plate (61) is provided with two chutes (611) in parallel along the length direction, and each of the chutes (611) There are two sliders (76) that are slidingly connected inside, the legs (7), transmission rods (75) and sliders (76) correspond one-to-one, and one end of the transmission rods (75) is hinged on the side of the legs (7). On the side, the other end is hinged on the side of the slider (76), and the above-mentioned driver (8) is connected with the slider (76); The driving member (8) includes two driving screws (81), and the two driving screws (81) are respectively rotatably connected in two slide grooves (611). Screw holes are provided on the block (76), and the two slide blocks (76) in the same chute (611) are connected to the two ends of the driving screw (81) by screw holes respectively, and the support plate (61) Also be provided with and can drive two driving screw rods (81) to rotate simultaneously control handle one (82). 2. The wounded transfer device according to claim 1, characterized in that, the end of the support plate (61) has an end plate (612) arranged perpendicularly to the support plate (61), and the operating handle one ( 82) Rotation is connected on the outer surface of the end plate (612), the driving handle one (82) is fixedly connected with the driving pulley one (83), and the ends of the two driving screws (81) are all fixedly connected with the Driving pulley one (84), said driving pulley one (83) is connected with driven pulley one (84) through a belt. 3. The device for moving the wounded according to claim 1 or 2, characterized in that, the free end of the support leg (7) is provided with an insertion hole (71), and the insertion hole (71) is slidably inserted with Telescopic rod (72), above-mentioned moving wheel (74) is hinged on the outer end of telescopic rod (72), and buffer spring (73) is arranged in described socket hole (71), and one end of described buffer spring (73) is fixed Be connected on the bottom surface of the insertion hole (71), and the other end is fixedly connected to the inner end of the telescopic rod (72). 4. The device for transporting the wounded according to claim 3, characterized in that, the positioning member (4) comprises a positioning block (41), and guide holes (122) are provided at both ends of the bottom surface of the guide groove (121), The lower end of the guide hole (122) penetrates to the lower side of the support frame (12), the positioning block (41) is slidably inserted in the guide hole (122), and the lower side of the positioning block (41) is vertical A pull bar (42) is fixedly connected, and a connecting pin (43) is vertically arranged on the pull bar (42), and an extension spring (44) is also sleeved on the pull bar (42), and the upper end of the extension spring (44) is fixedly connected to the On the lower side of the support frame (12), the lower end is fixedly connected on the connecting pin (43), and the upper end of the positioning block (41) stretches into the guide groove (121) under the action of the extension spring (44), and the positioning block Arc-shaped positioning grooves (411) are provided on the sides of (41), and when the feet (7) are horizontally embedded in the guide grooves (121), the moving wheels (74) are pressed against under the action of the buffer spring (73). in the positioning slot (411). 5. The wounded transfer device according to claim 4, characterized in that, the lower sides of the two long side bars of the supporting frame body (12) and the upper sides of the two long side bars of the moving frame body (11) are all along the length direction. Dovetail slots (3) are provided, and each pair of support rods (13) is arranged crosswise, and the same pair of support rods (13) are hinged at the intersection through pin shafts, and both ends of the support rods (13) are hinged to connect block (31), and the connecting blocks (31) at both ends of the support rod (13) are slidably connected in the dovetail groove (3) of the support frame (12) and the mobile frame (11) respectively. 6. The wounded transfer device according to claim 5, characterized in that, the adjustment member (2) comprises two adjustment screw rods (21), and the two adjustment screw rods (21) are respectively rotatably connected to two ends of the moving frame body (11). In the dovetail groove (3), the screw threads at the two ends of the two adjusting screws (21) have opposite helical directions, and the connecting blocks (31) at the lower ends of the same pair of support rods (13) are threadedly connected to the two ends of the adjusting screw (21), so that The ends of the adjustment screw (21) are all fixedly connected with the driven pulley two (24), and the moving frame (11) is fixedly connected with a connecting seat, and the connecting seat is connected with a control handle two (22) for rotation. ), the two driving handles (22) are fixedly connected with two driving pulleys (23), and the two driving pulleys (23) are connected with the two driven pulleys (24) by belts. 7. The device for transporting the wounded according to claim 6, characterized in that two guide tubes (5) are hinged at one end of the support frame (12), and guide rods are slidably inserted into the guide tubes (5) (51), two guide rods (51) are fixedly connected by cross bar, also be provided with support spring (53) in described guide tube (5), one end of this support spring (53) is fixedly connected in guide tube (5) On the bottom surface, the other end is fixedly connected on the guide rod (51), and under the action of the support spring (53), the guide rod (51) can tilt against the ground, and the guide tube (5) and the guide rod (51) All limit grooves (52) are offered along the length direction on the upper side of the upper side, and the limit grooves (52) on the guide tube (5) are abutted with the guide groove (121) when the guide tube (5) is inclined. 8. The wounded transfer device according to claim 7, characterized in that, the end of the moving frame (11) has two positioning seats (112), and the upper side of the positioning seats (112) are provided with Groove (113), when guide pipe (5) and guide bar (51) were vertical, the lower end of guide bar (51) was pressed in the groove (113) under the effect of support spring (53).