Foldable backpack rescue stretcher

Abstract

The utility model discloses a foldable backpack rescue stretcher which comprises a head supporting transverse plate, a hip supporting transverse plate, a leg supporting transverse plate, a first U-shaped supporting frame, a second U-shaped supporting frame, a reinforcing supporting transverse plate, a back supporting vertical plate and a connecting rod. A supporting structure combining the outer frame and the supporting plates at all positions inside is adopted, the overall stability is high, the length adjusting function is achieved, on one hand, the device is suitable for wounded persons with different heights, and on the other hand, after the device is folded and converted into a seat form, the length can be properly adjusted, and rescue workers can conveniently carry and walk on the back; the device has a lying folding form and a sitting folding form, can be carried by a single person or lifted by multiple persons, is particularly suitable for rescue sites where multiple persons are inconvenient to operate on rugged mountain roads, greatly improves rescue flexibility and has wide application prospects.

Description

Technical Field

[0001] The utility model belongs to the technical field of rescue equipment, and in particular relates to a foldable backpack rescue stretcher. Background Art

[0002] In the process of field rescue work, stretcher is a commonly used rescue equipment, usually carried by multiple rescuers for rescue. However, due to the complex field environment conditions, such as mountain rescue, the mountain roads are usually rugged, and some areas do not even have artificially built roads. At this time, it is difficult for multiple rescuers to carry the stretcher. At this time, they can only carry the wounded on their backs, which is inconvenient, especially when the rescuers take over the carrying, it is necessary to re-fix the wounded, and this process is prone to cause secondary injuries. The stretchers of the prior art are only flat-lift stretchers with a single function and limitations in rescue. Although the prior art also has a backpack-type multi-posture stretcher (such as CN102247246A backpack-type multi-posture stretcher), the structure is relatively complex, and it also needs to be disassembled, which is inconvenient to use, and it only has a seat function and cannot carry the wounded. For this reason, it is very necessary to develop a foldable backpack-type rescue stretcher. Utility Model Content

[0003] The utility model aims to provide a foldable backpack rescue stretcher.

[0004] The purpose of the utility model is achieved in this way, comprising a head support cross plate, a hip support cross plate, a leg support cross plate, a first U-shaped support frame, a second U-shaped support frame, a reinforcement support cross plate, a back support vertical plate, and a connecting rod, wherein the head support cross plate, the reinforcement support cross plate, the hip support cross plate, and the leg support cross plate are arranged in sequence and there is a spacing between them, both ends of the first U-shaped support frame and the second U-shaped support frame are telescopic rods, the head support cross plate is located in the first U-shaped support frame, and the two sides of the head support cross plate are respectively fixedly connected to the inner side of the first U-shaped support frame, the two sides of the reinforcement support cross plate are respectively fixedly provided with pipe sleeves, and the pipe sleeves are arranged on the telescopic rod body of the first U-shaped support frame, the two sides of the hip support cross plate are respectively fixedly provided with connecting rods, the leg support cross plate is located in the second U-shaped support frame, and the two sides of the leg support cross plate are respectively fixedly connected to the inner side of the second U-shaped support frame, The end of the telescopic rod of a U-shaped support frame is connected to one end of the connecting rod through a first movable joint, and the other end of the connecting rod is connected to the end of the telescopic rod of the second U-shaped support frame through a second movable joint. The head support cross plate and the middle part of the side edge of the reinforcement support cross plate are both provided with through holes corresponding to each other, and one end of the reinforcement support cross plate is hinged to the middle part of the side edge of the hip support cross plate through a hinge, and the other end of the reinforcement support cross plate passes through the through hole of the reinforcement support cross plate and the through hole of the head support cross plate in sequence; a head fixing seat is fixed on the middle part of the head support cross plate, and shoulder strap fixing holes are respectively provided on both sides of the plate surface of the head support cross plate, and shoulder strap fixing holes are respectively provided on both sides of the plate surface of the hip support cross plate, the shoulder strap fixing holes of the head support cross plate and the hip support cross plate correspond to each other one by one, and a shoulder strap is provided between the two shoulder strap fixing holes, and the shoulder strap is located below the head support cross plate and the hip support cross plate.

[0005] Preferably, the telescopic rods of the first U-shaped support frame and the second U-shaped support frame are both provided with a screw-type locking structure. The screw-type telescopic structure is common knowledge in the art. Specifically, it can be an internal threaded screw sleeve, which is tightened by the external thread structure at the end of the pipe mouth after being screwed, thereby clamping and locking the telescopic rod.

[0006] Preferably, the pipe sleeve is slidably matched or fixedly connected to the telescopic rod body. The sliding match facilitates the adjustment of the position of the reinforced support cross plate while avoiding blocking the telescopic rod from being extended or retracted. A bolt handle familiar to those skilled in the art can also be installed to achieve sliding locking. The pipe sleeve can also be fixedly connected to the middle of the telescopic rod to ensure that a portion of the telescopic rod can be extended or retracted.

[0007] Preferably, the first movable joint part and the second movable joint part have the same structure and both include a base, a shell, a top limit plate, a fixed connecting rod, a movable connecting rod, a fixed plate, a movable plate, a guide rod, a spring, a cross plate, a pressure rod and a limit rod. The base is provided with a shell on the periphery, a top limit plate is provided on the top of the shell, a notch is provided on the upper side of the shell, a vertical guide rod is fixedly provided at the center of the base, the spring is sleeved outside the guide rod, 10 mm is left for the spring and the gap, and sufficient pressing space is reserved. A hole is provided at the center of the cross plate, the guide rod is interlaced with the hole in the center of the cross plate, the bottom of the cross plate is fixedly connected to the upper end of the spring, and vertical limit rods are respectively fixed at both ends of the cross plate, the centers of the fixed plate and the movable plate are provided with a central through hole, and four The movable plate is located on the upper part of the movable plate, and the movable plate is located on the upper part of the movable plate. The movable plate is located on the upper part of the movable plate, and the pressure rod passes through the central through holes of the fixed plate and the movable plate, and the limiting rod passes through the two limiting holes of the fixed plate and the two limiting holes of the movable plate. The fixed connecting rod passes through the outer shell and is fixedly connected to the side of the fixed plate. The movable connecting rod is fixedly connected to the side of the movable plate, and the movable connecting rod passes through the gap. The first movable joint and the second movable joint have the function of rotation and can be locked to facilitate fixation when flat and in the seat state. The movable joint has a simple structure and is easy to use. After rotation and locking, the stretcher can be changed to a flat state or a seat state.

[0008] Preferably, the shoulder strap is a length-adjustable shoulder strap, which is a shoulder strap well known to those skilled in the art, and has an adjustable length to meet the carrying needs of rescue personnel.

[0009] The beneficial effects of the utility model: the utility model adopts a support structure that combines an external frame with support plates at various positions inside. The overall stability is high and it has a length adjustment function. On the one hand, it is suitable for wounded persons of different heights. On the other hand, after folding and transforming into a seat form, the length can be appropriately adjusted to facilitate rescue personnel to carry and walk. The device has two folding forms, lying flat and sitting. It can realize a single person carrying or multiple people lifting the wounded flat. When carrying the wounded in relays, only one person needs to be changed to continue carrying the wounded, and there is no need to re-fix the wounded. It is particularly suitable for rescue sites with rugged mountain roads that are inconvenient for multiple people to operate. It greatly improves the rescue flexibility and has broad application prospects. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a three-dimensional structural schematic diagram of the utility model in the unfolded stretcher state;

[0011] Figure 2 This is a schematic diagram of the three-dimensional structure of the utility model when it is folded into a seat state;

[0012] Figure 3is one of the three-dimensional structural schematic diagrams of the first movable joint component;

[0013] Figure 4 The second schematic diagram of the three-dimensional structure of the first movable joint component;

[0014] In the figure: 1-head support horizontal plate, 2-hip support horizontal plate, 3-leg support horizontal plate, 4-first U-shaped support frame, 5-second U-shaped support frame, 6-reinforced support horizontal plate, 7-back support vertical plate, 8-connecting rod, 9-first movable joint, 10-second movable joint, 11-head fixing seat, 12-back strap fixing hole, 13-back strap, 14-base, 15-housing, 16-top limiting plate, 17-fixed connecting rod, 18-movable connecting rod, 19-fixed disk, 20-movable disk, 21-guide rod, 22-spring, 23-cross plate, 24-pressure rod, 25-limiting rod, 26-notch, 27-center through hole, 28-limiting hole. DETAILED DESCRIPTION

[0015] The present invention is further described below in conjunction with the embodiments and drawings, but the present invention is not limited in any way. Any changes or substitutions made based on the teachings of the present invention belong to the protection scope of the present invention.

[0016] Example 1

[0017] As attached Figure 1~Figure 2As shown, the foldable backpack rescue stretcher of this embodiment includes a head support horizontal plate 1, a hip support horizontal plate 2, a leg support horizontal plate 3, a first U-shaped support frame 4, a second U-shaped support frame 5, a reinforced support horizontal plate 6, a back support vertical plate 7, and a connecting rod 8. The first U-shaped support frame 4, the second U-shaped support frame 5, and the connecting rod 8 are all made of high-strength aluminum alloy, which has high strength and light weight and is easy to carry. The first U-shaped support frame 4 and the second U-shaped support frame 5 have the same width of 45 cm; the head support horizontal plate 1, the hip support horizontal plate 2, the leg support horizontal plate 3, and the reinforced support horizontal plate 6 are 2 cm thick, and the back support vertical plate 7 is 1 cm thick. The support plates are all made of PE material, and the head fixing seat 11 is made of EVA material. The cost of EVA material is The invention is low-cost and can be removed as a whole and replaced with a new one after being damaged. The head support cross plate 1, the reinforcement support cross plate 6, the hip support cross plate 2 and the leg support cross plate 3 are arranged in sequence and there is a spacing between them. Both ends of the first U-shaped support frame 4 and the second U-shaped support frame 5 are telescopic rods. The head support cross plate 1 is located in the first U-shaped support frame 4, and the two sides of the head support cross plate 1 are respectively fixedly connected to the inner side of the first U-shaped support frame 4. The two sides of the reinforcement support cross plate 6 are respectively fixedly provided with pipe sleeves, which are sleeved on the telescopic rod body of the first U-shaped support frame 4. The two sides of the hip support cross plate 2 are respectively fixedly provided with connecting rods 8. The leg support cross plate 3 is located in the second U-shaped support frame 5, and the two sides of the leg support cross plate 3 are respectively fixedly connected to the inner side of the second U-shaped support frame 5. The telescopic rod end of the first U-shaped support frame 4 is connected to one end of the connecting rod 8 through a first movable joint 9, and the other end of the connecting rod 8 is connected to the telescopic rod end of the second U-shaped support frame 5 through a second movable joint 10. The middle parts of the side edges of the head support cross plate 1 and the reinforcement support cross plate 6 are provided with corresponding through holes. One end of the reinforcement support cross plate 6 is hinged to the middle part of the side edge of the hip support cross plate 2 through a hinge, and the other end of the reinforcement support cross plate 6 passes through the through hole of the reinforcement support cross plate 6 and the through hole of the head support cross plate 1 in sequence. A head fixing seat 11 is bonded to the middle part of the head support cross plate 1, and shoulder strap fixing holes 12 are respectively provided on both sides of the board surface of the head support cross plate 1, and shoulder strap fixing holes 12 are respectively provided on both sides of the board surface of the hip support cross plate 2. The shoulder strap fixing holes 12 correspond to the shoulder strap fixing holes 12 of the head supporting horizontal plate 1 and the hip supporting horizontal plate 2 one by one, and a shoulder strap 13 is provided between the two shoulder strap fixing holes 12, and the shoulder strap 13 is located below the head supporting horizontal plate 1 and the hip supporting horizontal plate 2; the telescopic rods of the first U-shaped support frame 4 and the second U-shaped support frame 5 are both provided with a screw-type locking structure; the pipe sleeve is slidably matched with the telescopic rod body, and a bolt locking handle is installed outside the pipe sleeve, and the end of the bolt locking handle is against the telescopic rod body; the first movable joint component 9 and the second movable joint component 10 are both rotating joint components well known to those skilled in the art, and are provided with a locking structure. When in use, the first movable joint component 9 rotates upward, and the second movable joint component 10 rotates downward; the shoulder strap 13 is a shoulder strap with adjustable length.

[0018] Example 2

[0019] As attached Figure 3 ~Attached Figure 4 As shown, the foldable backpack rescue stretcher of this embodiment is based on the embodiment 1, wherein the first movable joint part 9 and the second movable joint part 10 are non-commercially available rotating joint parts, and the first movable joint part 9 and the second movable joint part 10 have the same structure, and both include a base 14, a shell 15, a top limit plate 16, a fixed connecting rod 17, a movable connecting rod 18, a fixed plate 19, a movable plate 20, a guide rod 21, a spring 22, a cross plate 23, a pressure rod 24, and a limit rod 25. The base 14 is provided with a shell 15 on the periphery, and the top of the shell 15 is provided with a top limit plate 16. The upper side of the shell 15 A notch 26 is provided on the surface, a vertical guide rod 21 is fixedly provided at the center of the base 14, the spring 22 is sleeved outside the guide rod 21, a hole is provided at the center of the horizontal plate 23, the guide rod 21 and the central hole of the horizontal plate 23 are interlaced and matched, the bottom of the horizontal plate 23 is fixedly connected to the upper end of the spring 22, and a vertical limit rod 25 is fixedly provided at both ends of the horizontal plate 23, the center of the fixed plate 19 and the movable plate 20 are both provided with a central through hole 27, and four limit holes 28 are provided around the central through hole 27, the lower end of the pressure rod 24 is a concave cavity structure, and the lower end of the pressure rod 24 is fixedly connected to the horizontal plate 23 , and the cavity at the lower end of the pressure rod 24 is interlaced with the guide rod 21, the fixed plate 19 is located on the horizontal plate 23, the movable plate 20 is located on the fixed plate 19, and the pressure rod 24 passes through the central through hole 27 of the fixed plate 19 and the movable plate 20, the limiting rod 25 passes through the two limiting holes 28 of the fixed plate 19 and the two limiting holes 28 of the movable plate 20, the fixed connecting rod 17 passes through the housing 15 and is fixedly connected to the side of the fixed plate 19, the movable connecting rod 18 is fixedly connected to the side of the movable plate 20, and the movable connecting rod 18 passes through the notch 26; the ends of the fixed connecting rod 17 and the movable connecting rod 18 The parts are respectively connected to the corresponding parts of the movable joints; when in use, the pressure rod 24 is pressed down, the cross plate 23 moves down along the guide rod 21 and compresses the spring 22, and the limit rod 25 moves down at the same time to leave the movable disk 20. At this time, the movable connecting rod 18 (it can also be the corresponding U-shaped support frame) can be rotated, such as rotating 90°, until the other limit holes 28 correspond to the limit rod 25; the pressure rod 24 is released, the spring 22 is reset, the limit rod 25 moves up, and is inserted into the corresponding limit hole 28 of the movable disk 20, so that the movable disk 20 is locked, that is, the corresponding U-shaped support frame is locked; specifically, it can be transformed into a seat state or a flat state.

[0020] The working principle and working process of the utility model are as follows: the telescopic rods of the first U-shaped support frame 4 and the second U-shaped support frame 5 are extended or retracted, that is, the overall length of the device is lengthened or shortened, so as to adjust the length of the device to suit the wounded of different heights; when the length of the device is adjusted, the head support horizontal plate 1 and the reinforcement support horizontal plate 6 slide on the back support vertical plate 7; when the wounded lies on the device, the head is stuck in the head fixing seat 11, and the head is fixed to a certain extent, while the head support horizontal plate 1, the hip support horizontal plate 2, the leg support horizontal plate 3, the reinforcement support horizontal plate 6, and the back support vertical plate 7 jointly form a comprehensive support for the body of the wounded to ensure stability; when the rescuer walks, he holds the first U-shaped support frame 4 and the second U-shaped support frame 5 in his hands to lift the device and the wounded as a whole;

[0021] When the injured person needs to sit, the first U-shaped support frame 4 is flipped upwards and the second U-shaped support frame 5 is flipped downwards, so that the overall device is in the shape of a chair. At this time, the lengths of the first U-shaped support frame 4 and the second U-shaped support frame 5 can be appropriately adjusted, such as appropriately retracting the second U-shaped support frame 5 to reduce the length of this part, so as to avoid the second U-shaped support frame 5 being too long and easy to collide, which is convenient for rescuers to carry and walk; the rescuer sits on the hip support horizontal board 2, with his back against the support structure composed of the head support horizontal board 1, the strengthening support horizontal board 6, and the back support vertical board 7, and his legs are placed on the leg support horizontal board 3; safety belts and other equipment can be used to fix the injured person's body to the frame of the device; the rescuer carries the device and the injured person on his back through the straps 13.

Claims

1. A foldable backpack rescue stretcher, comprising a head support horizontal plate (1), a hip support horizontal plate (2), a leg support horizontal plate (3), a first U-shaped support frame (4), a second U-shaped support frame (5), a reinforcement support horizontal plate (6), a back support vertical plate (7), and a connecting rod (8), characterized in that The head support cross plate (1), the reinforcement support cross plate (6), the hip support cross plate (2), and the leg support cross plate (3) are arranged in sequence and spaced apart from each other; both ends of the first U-shaped support frame (4) and the second U-shaped support frame (5) are telescopic rods; the head support cross plate (1) is located inside the first U-shaped support frame (4), and both sides of the head support cross plate (1) are respectively fixedly connected to the inner side of the first U-shaped support frame (4); both sides of the reinforcement support cross plate (6) are respectively fixedly provided with pipe sleeves, which are sleeved on the telescopic rod body of the first U-shaped support frame (4); both sides of the hip support cross plate (2) are respectively fixedly provided with connecting rods (8); the leg support cross plate (3) is located inside the second U-shaped support frame (5), and both sides of the leg support cross plate (3) are respectively fixedly connected to the inner side of the second U-shaped support frame (5); the end of the telescopic rod of the first U-shaped support frame (4) is connected to one end of the connecting rod (8) through a first movable joint component (9); and the other end of the connecting rod (8) is connected to the second movable joint component (9). The movable joint part (10) is connected to the end of the telescopic rod of the second U-shaped support frame (5), and the middle parts of the side edges of the head support horizontal plate (1) and the reinforcement support horizontal plate (6) are provided with through holes corresponding to each other. One end of the reinforcement support horizontal plate (6) is hinged to the middle part of the side edge of the hip support horizontal plate (2) through a hinge, and the other end of the reinforcement support horizontal plate (6) passes through the through hole of the reinforcement support horizontal plate (6) and the through hole of the head support horizontal plate (1) in sequence. A through hole is fixed on the middle part of the head support horizontal plate (1). A head fixing seat (11) is provided, and shoulder strap fixing holes (12) are respectively opened on both sides of the board surface of the head supporting horizontal board (1), and shoulder strap fixing holes (12) are respectively opened on both sides of the board surface of the hip supporting horizontal board (2). The shoulder strap fixing holes (12) of the head supporting horizontal board (1) and the hip supporting horizontal board (2) correspond to each other one by one, and a shoulder strap (13) is provided between the two shoulder strap fixing holes (12), and the shoulder strap (13) is located below the head supporting horizontal board (1) and the hip supporting horizontal board (2).

2. The foldable backpack rescue stretcher according to claim 1, characterized in that The telescopic rods of the first U-shaped support frame (4) and the second U-shaped support frame (5) are both provided with a screw-type locking structure.

3. The foldable backpack rescue stretcher according to claim 1, characterized in that The pipe sleeve is slidably matched with or fixedly connected to the telescopic rod body.

4. The foldable backpack rescue stretcher according to claim 1, characterized in that The first movable joint component (9) and the second movable joint component (10) are both unidirectional rotating joint components with a locking structure; the first movable joint component (9) rotates upwards, and the second movable joint component (10) rotates downwards.

5. The foldable backpack rescue stretcher according to claim 1, characterized in that The shoulder strap (13) is a shoulder strap with adjustable length.

6. The foldable backpack rescue stretcher according to claim 1, characterized in that The first movable joint component (9) and the second movable joint component (10) have the same structure, and both comprise a base (14), a shell (15), a top limit plate (16), a fixed connecting rod (17), a movable connecting rod (18), a fixed plate (19), a movable plate (20), a guide rod (21), a spring (22), a transverse plate (23), a pressure rod (24), and a limit rod (25). The base (14) is provided with a shell (15) on its periphery, and the top of the shell (15) is provided with A top limit plate (16), a notch (26) is provided on the upper side of the housing (15), a vertical guide rod (21) is fixedly provided at the center of the base (14), the spring (22) is sleeved outside the guide rod (21), a hole is provided at the center of the horizontal plate (23), the guide rod (21) and the center hole of the horizontal plate (23) are interlaced and matched, the bottom of the horizontal plate (23) is fixedly connected to the upper end of the spring (22), and vertical limit rods (25) are fixedly provided at both ends of the horizontal plate (23) The fixed plate (19) and the movable plate (20) are both provided with a central through hole (27) at their centers, and four limiting holes (28) are provided around the central through hole (27). The lower end of the pressure rod (24) is a concave cavity structure, the lower end of the pressure rod (24) is fixedly connected to the horizontal plate (23), and the cavity at the lower end of the pressure rod (24) is interlaced with the guide rod (21). The fixed plate (19) is located on the horizontal plate (23), and the movable plate (20) is located on the fixed plate (19). The pressure rod (24) passes through the central through holes (27) of the fixed plate (19) and the movable plate (20), the limiting rod (25) passes through the two limiting holes (28) of the fixed plate (19) and the two limiting holes (28) of the movable plate (20), the fixed connecting rod (17) passes through the housing (15) and is fixedly connected to the side of the fixed plate (19), the movable connecting rod (18) is fixedly connected to the side of the movable plate (20), and the movable connecting rod (18) passes through the notch (26).

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