Foldable stretcher for battlefield rescue

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By designing a foldable stretcher structure with casters, handles, and stabilizing straps, the limitations of existing stretcher movement and stability issues have been resolved, enabling more efficient patient transfer and reducing the difficulty of rescue.

CN224523435UActive Publication Date: 2026-07-21CHINESE PEOPLES LIBERATION ARMY UNIT 94188 +1

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Patent Information

Authority / Receiving Office: CN · China
Patent Type: Utility models(China)
Current Assignee / Owner: CHINESE PEOPLES LIBERATION ARMY UNIT 94188
Filing Date: 2025-06-19
Publication Date: 2026-07-21

AI Technical Summary

Technical Problem

Existing foldable telescopic stretchers for battlefield medical care cannot be moved at a normal height and posture when pushed or pulled, which greatly limits their use. They also lack auxiliary stabilizing structures and are prone to slipping or tipping over.

Method used

A structure comprising a first stretcher and a second stretcher is designed, which are connected by a hinge and equipped with a support plastic plate and a stretcher positioning lock. The telescopic legs have casters at the bottom and handles and auxiliary stabilizing belt assemblies at both ends. Stability is achieved by using rotating buckles and magnetic blocks, and the rope can be hung on the rescuer's shoulder to prevent rollover.

Benefits of technology

It enables stretchers to be pushed or pulled in a comfortable and reasonable posture, reducing the labor intensity and difficulty for rescuers, improving the applicability and stability of use, and preventing stretchers and wounded persons from tipping over.

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Abstract

The utility model discloses a battlefield first-aid foldable wounded person transfer telescopic stretcher, including first stretcher, and with first stretcher cooperation's second stretcher, first stretcher and second stretcher end junction place is connected with the hinge shaft, first stretcher and second stretcher inboard still are fixed with the support plastic plate, the junction place both sides of first stretcher and second stretcher are provided with stretcher positioning lock, through stretcher positioning lock to the first stretcher and second stretcher after unfolding carry out straight lock, through the telescopic leg is turned to perpendicular state and utilizes the rotation buckle base and carries out the stabilization, then telescopic leg is stretched down, make with the ground contact's universal wheel and stretcher reach certain height, in this way make the first-aid personnel can with a comfortable reasonable posture to the stretcher and carry out the push / pull and move, compared with simple artificial lifting, can push and move the stretcher obviously reduced the labor intensity and the first-aid difficulty of first-aid personnel.

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Description

Technical Field

[0001] This utility model relates to the field of rescue stretcher technology, specifically a foldable telescopic stretcher for transferring wounded soldiers in battlefield rescue. Background Technology

[0002] Stretchers are essential medical equipment for emergency patient care at the scene of a crime, as injuries can occur anytime and anywhere, and timely rescue is crucial. Sometimes, due to environmental limitations, ambulances cannot reach the site directly, or the terrain may be uneven or require traversing steps. In such cases, stretchers are necessary for prompt patient care. Currently available stretchers are generally designed for lifting, not pushing, making patient transport physically demanding, especially when carrying heavy loads. Related technologies, such as the foldable, telescopic stretcher for battlefield first aid described in patent CN208864660U, feature a compact size, foldability, and the ability to be adjusted according to the patient's condition. It is equipped with rollers to reduce the number of personnel required for transport, and handles allow multiple people to lift, carry, or carry the patient when needed.

[0003] The aforementioned device has some shortcomings in actual use. For example, the rollers at the bottom of the stretcher are very low in longitudinal height, which makes it impossible to move the stretcher at a normal height when pushing / pulling it, resulting in significant limitations in its use. Furthermore, the device lacks an auxiliary stabilizing structure for lifting the stretcher, which may cause it to slip out of one's hands or tip over when carrying the injured person with both hands, making it inconvenient to use.

[0004] To address the above problems, this utility model provides a foldable telescopic stretcher for transferring wounded soldiers in battlefield rescue. Utility Model Content

[0005] The purpose of this section is to outline some aspects of the embodiments of this utility model and to briefly introduce some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of this section, the abstract, and the title, and such simplifications or omissions should not be used to limit the scope of this utility model.

[0006] Therefore, the purpose of this utility model is to provide a foldable telescopic stretcher for transferring wounded soldiers in battlefield rescue, in order to solve the problems mentioned in the background art, such as the inability to move the stretcher at a normal height when pushing / pulling, the high requirement for flat ground, and the significant limitations in use; and the lack of an auxiliary stabilizing structure for pushing / pulling the stretcher, which may cause it to slip or tip over when carrying wounded soldiers with both hands, making it inconvenient to use.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a foldable telescopic stretcher for battlefield first aid, comprising a first stretcher and a second stretcher that cooperates with the first stretcher. A hinge pin is connected at the junction of the ends of the first stretcher and the second stretcher. A support plastic plate is also fixed to the inner side of the first stretcher and the second stretcher. Stretcher positioning locks are provided on both sides of the junction of the first stretcher and the second stretcher. The first stretcher and the second stretcher are locked in a straight position after being unfolded by the stretcher positioning locks. Telescopic legs are longitudinally rotatably installed at the bottom of the opposite ends of the first stretcher and the second stretcher. Universal wheels are provided at the bottom of the telescopic legs. Handles are also fixed at the opposite ends of the first stretcher and the second stretcher. A retractable auxiliary stabilizing strap assembly is also provided on the handle.

[0008] As a preferred embodiment of the foldable telescopic stretcher for transferring wounded soldiers for battlefield rescue described in this utility model, the first stretcher and the second stretcher are provided with rotating buckles at their opposite ends, and the telescopic leg includes a main support cylinder with its upper end connected to the rotating buckle, a support leg that extends and retracts inside the main support cylinder and at its lower end, and a locking bolt that is threaded to one side of the lower end of the main support cylinder. The upper side of the support leg also has a positioning hole that is opposite to the inner end of the locking bolt, and the caster wheel is installed at the bottom of the support leg.

[0009] As a preferred embodiment of the foldable telescopic stretcher for battlefield medical care described in this utility model, one side of the telescopic leg has a first magnetic block fixed to the side wall of the main support cylinder, and the bottom edge of the first stretcher and the second stretcher are also fixed with a second magnetic block that is magnetically attracted to the first magnetic block.

[0010] As a preferred embodiment of the foldable telescopic stretcher for battlefield medical care described in this utility model, the auxiliary stabilizing belt assembly includes a retractor at the base of the handle, two ropes output from the retractor and passing through the free end of the handle, and an end buckle fixed to the outer end of the ropes.

[0011] As a preferred embodiment of the foldable telescopic stretcher for battlefield medical care described in this utility model, the stretcher positioning lock includes a first pin cylinder horizontally fixed to the side of the first stretcher, a second pin cylinder horizontally fixed to the side of the second stretcher and opposite to the first pin cylinder, a pin that extends and retracts inside the first pin cylinder and has its outer end inserted into the inner side of the second pin cylinder, a spring disposed at the inner end of the first pin cylinder and abutting against the inner end of the pin, a lever fixed to one side of the pin, and an avoidance groove opened on one side of the first pin cylinder and corresponding to the lever.

[0012] As a preferred embodiment of the foldable telescopic stretcher for transferring wounded soldiers for battlefield medical care described in this utility model, a reinforcing connecting rod is also fixed between the lower ends of the two supporting legs.

[0013] Compared with the prior art, the beneficial effects of this utility model are: (0) This type of foldable telescopic stretcher for battlefield first aid can be used to rescue wounded soldiers. First, the stretcher is unfolded and the first and second stretchers are fixed by the stretcher positioning lock. When the terrain and road conditions permit, the telescopic legs are flipped to a vertical position and stabilized by the rotating buckle. Then, the telescopic legs are pulled down so that the universal wheels in contact with the ground and the stretcher reach a certain height. In this way, the rescuers can push / pull the stretcher in a comfortable and reasonable posture. At the same time, compared with simple manual carrying, the pushable stretcher significantly reduces the labor intensity and rescue difficulty of the rescuers. The scope of application and practicality are further improved.

[0014] (1) This type of foldable telescopic stretcher for battlefield first aid allows rescuers to easily pull out the ropes on both sides of the handles when carrying the wounded. After adjusting to the appropriate length, the ropes are locked with a retractor. Then, the ropes on both sides are hung on the rescuers' shoulders. In this way, the rescuers can hold the handles while carrying the stretcher. At the same time, the ropes prevent the stretcher and the wounded from tipping over due to slipping, making the stretcher more stable during transport. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This utility model Figure 1 A magnified view of the structure at point A in the middle; Figure 3 This is a schematic diagram of the telescopic leg structure of this utility model; Figure 4 This is a schematic diagram of the auxiliary stabilizing belt component of this utility model.

[0016] In the diagram: 100, First stretcher; 110, Second stretcher; 120, Support plastic plate; 130, Hinge shaft; 140, Rotary buckle seat; 200, Stretcher positioning lock; 210, Pin cylinder one; 2101, Clearance groove; 220, Pin shaft; 230, Spring; 240, Toggle block; 250, Pin cylinder two; 300, Telescopic leg; 310, Main support cylinder; 320, Support leg; 330, Locking bolt; 400, Caster wheel; 500, Handle; 600, Auxiliary stabilizing belt assembly; 610, Winding device; 620, Rope; 630, End buckle; 700, First magnet; 710, Second magnet; 800, Reinforcing connecting rod. Detailed Implementation

[0017] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0018] Secondly, this utility model is described in detail with reference to the schematic diagrams. When describing the embodiments of this utility model, for ease of explanation, the cross-sectional views showing the device structure may be partially enlarged, not according to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of this utility model. In addition, in actual manufacturing, the three-dimensional spatial dimensions of length, width, and depth should be included.

[0019] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.

[0020] Figures 1-4 The diagram shown is a complete structural schematic of a foldable telescopic stretcher for transferring wounded soldiers in battlefield medical care according to this utility model. Please refer to [link / reference needed]. Figures 1-4 This embodiment of a foldable telescopic stretcher for battlefield first aid includes a first stretcher 100 and a second stretcher 110 that cooperates with the first stretcher 100. A hinge pin 130 is connected at the junction of the ends of the first stretcher 100 and the second stretcher 110. A support plastic plate 120 is also fixed inside the first stretcher 100 and the second stretcher 110. Stretcher positioning locks 200 are provided on both sides of the junction of the first stretcher 100 and the second stretcher 110 to lock the unfolded first stretcher 100 and the second stretcher 110 in a straight position. Telescopic legs 300 are longitudinally rotatably installed at the bottom of the opposite ends of the first stretcher 100 and the second stretcher 110. Universal wheels 400 are provided at the bottom of the telescopic legs 300. Handles 500 are also fixed at the opposite ends of the first stretcher 100 and the second stretcher 110. A pull-out auxiliary stabilizing belt assembly 600 is also provided on the handle 500.

[0021] Rotary buckles 140 are provided at opposite ends of the first stretcher 100 and the second stretcher 110. The telescopic leg 300 includes a main support cylinder 310 with its upper end connected to the rotary buckle 140, a support leg 320 that extends and retracts inside and at the lower end of the main support cylinder 310, and a locking bolt 330 that is threadedly connected to one side of the lower end of the main support cylinder 310. The upper end of the support leg 320 also has a positioning hole that corresponds to the inner end of the locking bolt 330. A caster wheel 400 is installed at the bottom of the support leg 320. One side of the telescopic leg 300 has a first magnetic block 700 fixed to the side wall of the main support cylinder 310. The bottom edge of the first stretcher 100 and the second stretcher 110 is also fixed with a second magnetic block 710 that magnetically attracts and cooperates with the first magnetic block 700. It is understandable that when not in use, the rotating buckle 140 can be unlocked directly, and the telescopic leg 300 along with the universal wheel 400 can be flipped to the bottom of the first stretcher 100 or the second stretcher 110. With the cooperation of the first magnetic block 700 and the second magnetic block 710, the telescopic leg 300 and the stretcher can be folded up and put away. When needed, it can be opened directly, which is time-saving and efficient. Specifically, when rescuing the injured, the stretcher is first unfolded and the first stretcher 100 and the second stretcher 110 are fixed in place using the stretcher positioning lock 200. When the terrain and road conditions permit, the telescopic legs 300 are flipped to a vertical position and secured using the swivel buckle 140. Then, the telescopic legs 300 are pulled downwards so that the universal wheels 400 in contact with the ground and the stretcher reach a certain height. In this way, the rescuers can push / pull the stretcher in a comfortable and reasonable posture. At the same time, compared with simple manual carrying, the pushable stretcher significantly reduces the labor intensity and rescue difficulty of the rescuers, and the scope of application and practicality are further improved.

[0022] The auxiliary stabilizing harness assembly 600 includes a retractor 610 at the base of the handle 500, two ropes 620 extending from the retractor 610 and passing through the free end of the handle 500, and end clips 630 fixed to the outer ends of the ropes 620. It is understood that the retractor 610 uses a commercially available rope retractor with adjustable length. Specifically, when rescuers are carrying the injured person, they can easily pull out the ropes 620 from both handles 500, adjust them to a suitable length, and then use the retractor 610 to lock the rope length. The ropes 620 are then hung on the rescuer's shoulders. This allows the rescuer to hold the handles 500 while carrying the stretcher, and the ropes 620 prevent the stretcher and injured person from tipping over due to slippage, making the stretcher more stable during transport.

[0023] Furthermore, the stretcher positioning lock 200 includes a first pin cylinder 210 horizontally fixed to the side of the first stretcher 100, a second pin cylinder 250 horizontally fixed to the side of the second stretcher 110 and disposed opposite to the first pin cylinder 210, a pin 220 extending and retracting inside the first pin cylinder 210 and having its outer end inserted into the inner side of the second pin cylinder 250, a spring 230 disposed at the inner end of the first pin cylinder 210 and abutting against the inner end of the pin 220, a lever 240 fixed to one side of the pin 220, and a relief groove 2101 opened on one side of the first pin cylinder 210 and corresponding to the lever 240. It is understood that in this embodiment, the first stretcher 100 and the second stretcher 110 are folded upwards. During the horizontal unfolding of the first stretcher 100 and the second stretcher 110, the lever 240 and the pin 220 can be held by hand. After the stretcher is fully flattened, the pin 220 can be released. Under the action of the spring 230, the pin 220 is inserted into the pin cylinder 250. In this way, the first stretcher 100 and the second stretcher 110 form a fixed whole structure that unfolds. When folding, the operation can be reversed.

[0024] Furthermore, a reinforcing link 800 is fixed between the lower ends of the two supporting legs 320. It can be understood that the reinforcing link 800 can effectively enhance the support stability of the two telescopic legs 300 and prevent undesirable swaying during pushing and moving.

[0025] Although the present invention has been described above with reference to embodiments, various modifications can be made and components can be replaced with equivalents without departing from the scope of the present invention. In particular, as long as there is no structural conflict, the features in the embodiments disclosed in this invention can be combined with each other in any way. The lack of an exhaustive description of these combinations in this specification is merely for the sake of brevity and resource conservation. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A foldable telescopic stretcher for transferring wounded soldiers in battlefield medical care, characterized in that, The system includes a first stretcher (100) and a second stretcher (110) that cooperates with the first stretcher (100). A hinge (130) is connected at the junction of the ends of the first stretcher (100) and the second stretcher (110). A support plastic plate (120) is also fixed to the inner side of the first stretcher (100) and the second stretcher (110). Stretcher positioning locks (200) are provided on both sides of the junction of the first stretcher (100) and the second stretcher (110). The stretcher positioning locks (200) are used to control the unfolded stretcher. The first stretcher (100) and the second stretcher (110) are locked in a straight position. The bottom of the two ends of the first stretcher (100) and the second stretcher (110) that are opposite to each other are longitudinally rotatably mounted with telescopic legs (300). The bottom of the telescopic legs (300) is provided with casters (400). The two ends of the first stretcher (100) and the second stretcher (110) that are opposite to each other are also fixed with handles (500). The handles (500) are also provided with pull-out auxiliary stabilizing belt components (600).

2. The foldable telescopic stretcher for transferring wounded soldiers in battlefield medical care according to claim 1, characterized in that: The first stretcher (100) and the second stretcher (110) are provided with rotating buckles (140) at opposite ends. The telescopic leg (300) includes a main support cylinder (310) with its upper end connected to the rotating buckle (140), a support leg (320) that extends and retracts inside the main support cylinder (310) and at its lower end, and a locking bolt (330) that is threaded to one side of the lower end of the main support cylinder (310). The upper side of the support leg (320) also has a positioning hole that is opposite to the inner end of the locking bolt (330), and the caster wheel (400) is installed at the bottom of the support leg (320).

3. The foldable telescopic stretcher for transferring wounded soldiers in battlefield medical care according to claim 1, characterized in that: The telescopic leg (300) has a first magnetic block (700) fixed to the side wall of the main support cylinder (310) on one side, and a second magnetic block (710) that is magnetically attracted to the bottom edge of the first stretcher (100) and the second stretcher (110) is also fixed.

4. A foldable telescopic stretcher for transferring wounded soldiers in battlefield medical care according to claim 1, characterized in that: The auxiliary stabilizing belt assembly (600) includes a retractor (610) located at the base of the handle (500), two ropes (620) output from the retractor (610) and passing through the free end of the handle (500), and an end buckle (630) fixed to the outer end of the ropes (620).

5. A foldable telescopic stretcher for transferring wounded soldiers in battlefield medical care according to claim 1, characterized in that: The stretcher positioning lock (200) includes a first pin cylinder (210) horizontally fixed to the side of the first stretcher (100), a second pin cylinder (250) horizontally fixed to the side of the second stretcher (110) and opposite to the first pin cylinder (210), a pin (220) extending and retracting inside the first pin cylinder (210) and with its outer end inserted into the inside of the second pin cylinder (250), a spring (230) located at the inner end of the first pin cylinder (210) and abutting against the inner end of the pin (220), a lever (240) fixed to one side of the pin (220), and a relief groove (2101) opened on one side of the first pin cylinder (210) and corresponding to the lever (240).

6. A foldable telescopic stretcher for transferring wounded soldiers in battlefield medical care according to claim 2, characterized in that: A reinforcing link (800) is also fixed between the lower ends of the two supporting legs (320).