CN111297574A - Drag-hanging stretcher and wounded lifting appliance - Google Patents

Drag-hanging stretcher and wounded lifting appliance Download PDF

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Publication number
CN111297574A
CN111297574A CN202010197950.3A CN202010197950A CN111297574A CN 111297574 A CN111297574 A CN 111297574A CN 202010197950 A CN202010197950 A CN 202010197950A CN 111297574 A CN111297574 A CN 111297574A
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CN
China
Prior art keywords
belt
stretcher
supporting frame
lifting
hanging
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Pending
Application number
CN202010197950.3A
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Chinese (zh)
Inventor
段明智
张勇
吴希
朱亮
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SHANGHAI AVIATION MACHINERY CO Ltd
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SHANGHAI AVIATION MACHINERY CO Ltd
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Priority to CN202010197950.3A priority Critical patent/CN111297574A/en
Publication of CN111297574A publication Critical patent/CN111297574A/en
Pending legal-status Critical Current

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    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61GTRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
    • A61G1/00Stretchers
    • A61G1/02Stretchers with wheels
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61GTRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
    • A61G1/00Stretchers
    • A61G1/013Stretchers foldable or collapsible
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61GTRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
    • A61G1/00Stretchers
    • A61G1/04Parts, details or accessories, e.g. head-, foot-, or like rests specially adapted for stretchers
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61GTRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
    • A61G1/00Stretchers
    • A61G1/04Parts, details or accessories, e.g. head-, foot-, or like rests specially adapted for stretchers
    • A61G1/042Suspension means
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61GTRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
    • A61G1/00Stretchers
    • A61G1/04Parts, details or accessories, e.g. head-, foot-, or like rests specially adapted for stretchers
    • A61G1/044Straps, bands or belts
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61GTRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
    • A61G1/00Stretchers
    • A61G1/04Parts, details or accessories, e.g. head-, foot-, or like rests specially adapted for stretchers
    • A61G1/048Handles

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  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Invalid Beds And Related Equipment (AREA)

Abstract

A drag-hanging stretcher comprises a front supporting frame, a front self-locking joint, a middle supporting frame, a rear self-locking joint, a supporting fabric, a safety fixing ring, a rear supporting frame and a movable wheel assembly; the front supporting frame is connected with the middle supporting frame through the front self-locking joint; the rear supporting frame is connected to the middle supporting frame through the rear self-locking joint; the moving wheel assembly is mounted at the end of the rear support frame. A lifting belt comprises a binding belt, a main lifting belt, a chest auxiliary belt lock catch, a waist fixing belt and a waist fixing belt lock catch. The wounded sling comprises the trailing stretcher and/or the lifting belt. The trailing stretcher and the wounded sling have the functions of vertically lifting the wounded, lifting and rescuing by a helicopter, lifting and transporting by manpower and the like, and consist of the trailing stretcher and a lifting belt, wherein the trailing stretcher is used for trailing and lifting the wounded; the lifting belt is used for tank wounded personnel out of the tank for lifting, rescue in the pit and in narrow gaps, and the like.

Description

Drag-hanging stretcher and wounded lifting appliance
Technical Field
The invention relates to the technical field of medical instruments, in particular to a dragging and hanging type stretcher and wounded lifting appliance.
Background
Stretchers, as the most basic rescue tool for transporting injured people, are widely used in war or disaster rescue activities. However, the existing stretcher has single function and is difficult to meet multiple requirements of rescue under different conditions. In addition, the lifting appliance is widely applied in the rescue process.
But the functions of the conventional common rescue lifting appliance and the conventional common rescue stretcher are single, and the lifting appliance and the stretcher do not have the comprehensive functions of lifting and stretcher.
Disclosure of Invention
(1) Technical problem
Therefore, how to solve the problem that the conventional common rescue lifting appliance and stretcher in the prior art have single functions and do not have the comprehensive functions of lifting and stretcher becomes a problem to be solved by technical personnel in the field.
(2) Technical scheme
In view of the above problems, the present invention provides a dragging and hanging stretcher and a wounded person sling.
A drag-hanging stretcher comprises a front supporting frame, a front self-locking joint, a middle supporting frame, a rear self-locking joint, a supporting fabric, a safety fixing ring, a rear supporting frame and a movable wheel assembly;
the front supporting frame is connected with the middle supporting frame through the front self-locking joint;
the rear supporting frame is connected to the middle supporting frame through the rear self-locking joint;
the front support frame, the middle support frame and the rear support frame respectively comprise two longitudinal rods and at least one transverse rod for connecting the two longitudinal rods; the two ends of the cross rod are upwarped; the safety fixing rings are arranged at the symmetrical positions of the two longitudinal rods of the front support frame and the rear support frame;
the front self-locking joint and the rear self-locking joint have the same structure and respectively comprise a joint seat, a locking pin sliding groove, a rotating joint, an unlocking sliding block and a dustproof sheet; the sliding groove is in a quarter arc shape, the locking pin is positioned in the sliding groove, and bayonets are arranged at the tail end and the middle part of the sliding groove) and used for fixing the locking pin;
the moving wheel assembly is arranged at the tail end of the rear support frame; the moving wheel assembly comprises a wheel frame and a moving wheel, and a gap is arranged between the moving wheel and the wheel frame;
the supporting fabric is respectively laid on the front supporting frame, the middle supporting frame and the rear supporting frame and sewn together with the front supporting frame, the middle supporting frame and the rear supporting frame.
Furthermore, the longitudinal rods and the transverse rods are made of reinforced carbon fiber composite material pipes;
furthermore, a rubber handle is arranged on the vertical rod.
Furthermore, the supporting fabric is made of waterproof canvas.
Furthermore, the moving wheel adopts two steel core rubber wheels, and the diameter of the moving wheel is 76 mm.
Further, the device also comprises a towing strap, a safety belt, a safety fixing belt, a shoulder belt and a locking fastener;
the towing hanging belt is made of a woven belt, two ends of the towing hanging belt are fixedly connected to the safety fixing rings of the front support frame and the rear support frame through hanging rings, and a limiting ring is sewn in the middle of the towing hanging belt;
the safety belt is arranged in an X shape and is matched with the safety fixing belt for use, so that the wounded person can be firmly fixed;
the safety fixing belt adopts an aviation cross insurance structure form;
the shoulder straps are made of soft cloth materials and are used for being carried on two sides of the shoulders of the carrying personnel during hauling and lifting;
the lock catch piece adopts an adjusting buckle or a buckle.
Furthermore, a headrest is arranged on the front support frame (1).
Furthermore, a pedal belt is also arranged at the safety fixing ring of the rear support frame; the two ends of the pedal belt are provided with connecting holes, and the pedal belt is sewn by soft cloth.
A lifting belt comprises a binding belt, a main lifting belt, a chest auxiliary belt lock catch, a waist fixing belt and a waist fixing belt lock catch;
the two main lifting belts are arranged, one end of each main lifting belt is in a closed pull ring shape, and the other end of each main lifting belt is connected to the chest auxiliary belt and the waist fixing belt through sewing;
the binding belt is arranged on the outer side of the main hoisting belt and is used for binding the two main hoisting belts together;
the chest auxiliary belt lock catch is positioned on the chest auxiliary belt and used for locking the chest auxiliary belt;
the waist fixing belt lock catch is positioned on the waist fixing belt and used for locking the waist fixing belt.
A wounded person sling comprises the dragging and hanging stretcher and/or the lifting belt.
The trailing stretcher and the wounded sling have the functions of vertically lifting the wounded, lifting and rescuing by a helicopter, lifting and transporting by manpower and the like, and consist of the trailing stretcher and a lifting belt, wherein the trailing stretcher is used for trailing and lifting the wounded; the lifting belt is used for tank wounded personnel out of the tank for lifting, rescue in the pit and in narrow gaps, and the like.
(3) Advantageous effects
The invention has the advantages that the ① dragging and hanging type stretcher has the characteristics of quick unfolding and folding and quick function conversion, the loading and the exchange of different states and functions are realized by controlling the self-locking joint, and the hoisting belt is quickly unfolded and fixed by using the quick lock catch.
(2) Due to the arrangement of the mobile wheel component of the trailing stretcher, the physical consumption of trailing personnel is reduced, and the transfer speed of wounded personnel is accelerated.
(3) The adoption of the reinforced carbon fiber composite material and the woven belt material meets the rigorous requirements of the dragging and hanging type stretcher and the hanging belt on weight, and has the characteristic of light weight.
Drawings
Fig. 1 is a schematic view of the overall structure of a drag-and-drop stretcher;
fig. 2 is a cross-sectional structure schematic diagram of a drag-and-drop stretcher;
FIG. 3 is a schematic view of the tread structure;
FIG. 4 is a schematic side view of the front self-locking joint;
FIG. 5 is a schematic top view of the front self-locking joint;
6-9 are self-locking joint deployment views;
FIG. 10 is a schematic view of a handling belt structure;
fig. 11 is a schematic view of a one-person consignment mode configuration of the drag-lift stretcher;
fig. 12 is a schematic structural view of a two-person carrying mode of the drag stretcher;
fig. 13 is a schematic structural view of a whole body lifting mode of the dragging type stretcher.
In the figure: 1, a front support frame 11 is a longitudinal rod, and 12 is a transverse rod; 2 is a front self-locking joint, 21 is a joint seat, 22 is a locking pin, 23 is a sliding groove, 24 is a rotating joint, 25 is an unlocking sliding block, 26 is a dustproof sheet, and 27 is a bayonet; 3 is a middle support frame, 4 is a rear self-locking joint, 5 is a support fabric, 6 is a safety fixing ring, 7 is a rear support frame, 8 is a movable wheel assembly, 81 is a wheel frame, and 82 is a movable wheel. 9 is a towing harness, 10 is a safety harness, 13 is a safety harness, and 14 is a foot pedal harness. 15 is a binding belt, 16 is a main lifting belt, 17 is a chest auxiliary belt, 18 is a chest auxiliary belt lock catch, 19 is a waist fixing belt, and 20 is a waist fixing belt lock catch.
Detailed Description
The invention is further illustrated by the following figures and examples.
In the description of the present invention, the terms "upper", "lower", "front", "rear", "top", "bottom", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.
As shown in fig. 1-3, the drag-hanging stretcher comprises a front support frame (1), a front self-locking joint (2), a middle support frame (3), a rear self-locking joint (4), a support fabric (5), a safety fixing ring (6), a rear support frame (7) and a moving wheel assembly (8).
The front supporting frame (1) is connected with the middle supporting frame (3) through the front self-locking joint (2); the rear supporting frame (7) is connected to the middle supporting frame (3) through the rear self-locking joint (4); the front support frame (1), the middle support frame (3) and the rear support frame (7) respectively comprise two longitudinal rods (11) and at least one transverse rod (12) for connecting the two longitudinal rods; the two ends of the cross rod (12) are tilted upwards; the longitudinal rods (11) and the transverse rods (12) are made of reinforced carbon fiber composite material pipes; and a rubber handle is arranged on the vertical rod (11). Two longitudinal rods of the front support frame (1) and the rear support frame (7) are symmetrically provided with a safety fixing ring (6); the moving wheel assembly (8) is arranged at the tail end of the rear support frame (7); the supporting fabric (5) is respectively laid on the front supporting frame (1), the middle supporting frame (3) and the rear supporting frame (7) and sewn with the front supporting frame (1), the middle supporting frame (3) and the rear supporting frame (7), and the supporting fabric (5) is made of waterproof canvas. The moving wheel assembly comprises a wheel frame (81) and a moving wheel (82), and a gap is formed between the moving wheel and the wheel frame; the moving wheel (82) adopts two steel core rubber wheels, and the diameter of the wheel is 76 mm.
The supporting fabric (5) is laid on the front, middle and rear supporting frames and sewn together with the front, middle and rear supporting frames to play a role in supporting the wounded. The supporting fabric (5) adopts high-strength waterproof canvas, ensures that the safety coefficient under rated load is not less than 3, and has the characteristics of water resistance, corrosion resistance, static resistance, tear resistance, wear resistance, stain resistance and easiness in cleaning. The color of the supporting fabric (5) is camouflage color without reflection, and the standard of battlefield safety concealment and reconnaissance is met.
The longitudinal rods (11) and the transverse rods (12) are made of reinforced carbon fiber composite material pipes, so that the reinforced carbon fiber composite material pipes have good wear resistance and corrosion resistance, and can resist the influence of salt spray corrosion environmental conditions in coastal areas of China. The cross rod (12) adopts a design with two upturned ends, as shown in figure 2, can be used as a transverse supporting structure of the supporting frame and a supporting leg of the stretcher, so that the supporting fabric keeps a certain distance from the ground, and ground pollutants are prevented from infecting wounded persons.
The headrest is arranged on the front support frame (1), so that the head comfort of the wounded is improved and the head impact is reduced during hauling, lifting and full-body hoisting. A pedal belt (14) is also arranged at the safety fixing ring (6) of the rear support frame (7); the two ends of the pedal belt (14) are provided with connecting holes, and the pedal belt is sewn by soft cloth as shown in figure 3.
As shown in fig. 4-5, the front self-locking joint (2) and the rear self-locking joint (4) have the same structure, and each of the front self-locking joint and the rear self-locking joint comprises a joint seat (21), a locking pin (22), a sliding groove (23), a rotating joint (24), an unlocking slider (25) and a dust-proof sheet (26); the sliding groove (23) is in a quarter arc shape, the locking pin (22) is positioned in the sliding groove (23), and bayonets (27) are arranged at the tail end and the middle part of the sliding groove (23) and used for fixing the locking pin (22); the front self-locking joint (2) and the rear self-locking joint (4) are the key for realizing different use modes of the trailing stretcher. The trailing suspension type stretcher is completely unfolded from the folded state, only the front support frame and the rear support frame need to be flattened and pressed, and the locking pin automatically enters the locking groove under the action of the spring. When the position needs to be switched, the unlocking slide block is pushed (or pulled), and the rotating joint is rotated, so that the locking pin is separated from the locking groove, as shown in figures 6-9. The design of the front self-locking joint (2) and the rear self-locking joint (4) meets the requirement of quick unfolding and storage of the trailing stretcher. The dustproof sheet can obstruct sand dust from polluting the inside of the unlocking slide block, and the locking is avoided.
The drag-hanging stretcher also comprises a drag-hanging belt (9), a safety belt (10), a safety fixing belt (13), a shoulder belt and a locking fastener;
the towing and hanging belt (9) is made of a woven belt material, two ends of the towing and hanging belt are fixedly connected to the safety fixing rings (6) of the front support frame and the rear support frame through hanging rings (91), and a limiting ring (92) is sewn in the middle of the towing and hanging belt (9); the safety belt (10) is arranged in an X shape, is matched with a safety fixing belt for use and is used for firmly fixing the wounded; the safety fixing belt (13) adopts an aviation cross safety structure form, is used for preventing the secondary injury problem of wounded caused by infirm bundling, has quick connection and tightening, and has good skid resistance and looseness prevention. The shoulder straps are made of soft cloth materials and are used for being carried on two sides of the shoulders of the carrying personnel during hauling and lifting; the lock catch piece adopts an adjusting buckle or a buckle.
The trailing type stretcher can be unfolded and folded quickly, four working modes of trailing type, lifting type, whole body lifting type and half body lifting type can be realized by locking the front self-locking joint (2) and the rear self-locking joint (4) at different positions and different operation modes, one wounded person can be borne, and the trailing type stretcher has the capabilities of one person trailing, two persons lifting and whole body or half body lifting. The safety belts are arranged in an X shape and are assisted by the safety fixing belts, so that the wounded person is firmly fixed.
As shown in fig. 10, a lifting belt comprises a binding belt (15), a main lifting belt (16), a chest auxiliary belt (17), a chest auxiliary belt lock catch (18), a waist fixing belt (19) and a waist fixing belt lock catch (20). The handling area adopts the technical form of safety belt hasp, can fix the wounded fast, will hurt the cabin such as tank, armored car of dragging out. The handling area can expand fast and fixed, hangs the wounded in the narrow and small transport means of hatch door such as tank, armored car and drags out the cabin. The handling area configuration suspender ring and constraint area, adaptable manual work and crane are dragged wounded to can hang and drag 1 wounded.
Two main hoisting belts (16) are arranged, one end of each main hoisting belt (16) is in a closed ring shape, and the other end of each main hoisting belt (16) is connected to the chest auxiliary belt (17) and the waist fixing belt (19) through sewing; the binding belt (15) is arranged on the outer side of the main hoisting belt (16) and is used for binding the two main hoisting belts (16) together; the chest auxiliary belt lock catch (18) is positioned on the chest auxiliary belt (17) and used for locking the chest auxiliary belt (17); the waist fixing belt lock catch (20) is located on the waist fixing belt (19) and used for locking the waist fixing belt (19).
The wounded sling comprises the trailing stretcher and/or the lifting belt.
Specific example 1: one-person consignment mode of trailing stretcher
In the case of non-soft ground, a one-person consignment mode of a drag-and-drop stretcher can be performed, as shown in fig. 11.
Because one end of the drag hanging type stretcher is provided with two moving wheel assemblies (8), when the wounded is dragged, the moving wheel assemblies can be used as supporting ends, the acting force received by the dragging personnel is reduced, the physical consumption is reduced, the dragging speed is accelerated, and the time is strived for rescuing the wounded. The moving wheel assembly (8) comprises a wheel frame (81) and a moving wheel (82), and a gap is arranged between the moving wheel and the wheel frame; the moving wheel (82) adopts two steel core rubber wheels, and the diameter of the wheel is 76 mm. The moving wheel component is arranged on the end face of the stretcher, the structural size is simplified, the weight of the moving wheel component is reduced, enough space is reserved between the tire tread of the moving wheel and the wheel carrier, and the phenomenon that foreign matters are accumulated to cause the clamping stagnation of the wheel is avoided. The moving wheel adopts a steel core rubber wheel with the wheel diameter of 76mm, thereby not only ensuring the passing capacity under the condition of non-soft ground, but also ensuring the moderate weight of the wheel.
When the wounded person is hauled, the body inclines, the safety fixing belt applies tightening force to the wounded person, and at the moment, the foot pedal belt is arranged at the sole of the foot to reduce the discomfort of the wounded person. The pedal belt is made of soft cloth in a sewing mode, and when the pedal belt is not used, the required storage space is small.
In addition, in the one-person consignment mode of the drag-and-hang stretcher, the passing property of the stretcher is also focused, and the side surface of the stretcher is prevented from being hooked with the channel when the stretcher passes through a narrow space. And the problem of jamming of the moving wheel assembly.
Specific example 2: two-person lifting mode of trailing stretcher
In the two-person lifting mode of the drag-hanging stretcher, the front end and the rear end of the drag-hanging stretcher are respectively lifted by two persons for carrying. The shoulder belts are respectively tied on the safety fixing rings of the front supporting frame and the rear supporting frame, and the shoulder belts are sleeved on the two shoulders of the person to be lifted. The rubber handles are arranged on the stretcher longitudinal rods at the two ends of the stretcher, so that the stretcher has the effects of skid resistance, heat insulation, buffering and the like, and the comfort of hands of transporters is improved.
In addition, in the two-person carrying mode of the drag-type stretcher, the balance problem of the stretcher should be focused.
Specific example 3: whole body lifting mode of dragging and lifting type stretcher
In the whole body lifting mode of the drag-type stretcher, as shown in fig. 12, the braided belt of the stretcher is lifted when the drag belt is lifted whole body. The two ends of the drag hanging belt are fixed on the safety fixing rings of the front and the rear supporting frames through the hanging rings 91, and the middle part of the drag hanging belt is sewed with a limiting ring 92, so that the change of the lifting position is avoided, and the unstable gravity center of the stretcher is caused. The shoulder straps are soft straps that are carried on the shoulders of the carrier during towing and lifting. Not only can relieve the fatigue of the arms, but also can prevent the carrying personnel from slipping hands to cause the danger of the side turning of the stretcher and the wounded.
Specific example 4: half-body hoisting mode of dragging and hoisting type stretcher
In the half-body lifting mode of the trailing stretcher, as shown in fig. 13, the braided strap of the stretcher is lifted when the trailing strap is lifted in the half-body. The two ends of the drag hanging belt are fixed on the safety fixing rings of the front and the rear supporting frames through the hanging rings 91, and the middle part of the drag hanging belt is sewed with a limiting ring 92, so that the change of the lifting position is avoided, and the unstable gravity center of the stretcher is caused. The shoulder straps are soft straps that are carried on the shoulders of the carrier during towing and lifting. Not only can relieve the fatigue of the arms, but also can prevent the carrying personnel from slipping hands to cause the danger of the side turning of the stretcher and the wounded.
The self-locking joints of the drag-type stretcher can realize different working modes in the embodiment, the front self-locking joints and the rear self-locking joints can be folded upwards and downwards respectively and can be folded, the self-locking joints can be converted into drag-type, lift-type or whole-body hoisting modes when being straight, and the self-locking joints can be converted into half-body hoisting modes when being in an upward right-angle state. The conversion among the modes is realized by the operation of unlocking the sliding block through the self-locking joint, and the spreading and receiving time is measured and calculated within the range of 18 s-28 s according to the number of operation steps. The lifting belt has two lock catches, the active lifting belt can be rapidly unfolded in a folded state, the lock catches are unlocked, and the time for measuring and calculating the unfolding and folding is within 15 s.
The towing type stretcher can be folded when being stored or transported. The volume of the trailing stretcher can be reduced after being folded. The maximum external dimension of the stretched dragging and hanging stretcher is set to be 1980mm (length) multiplied by 610mm (width) multiplied by 150mm (height), and the maximum external dimension of the stretched main belt of the hoisting belt is 3930 (length) multiplied by 70mm (width). The size of the folded trailing stretcher is about 780mm multiplied by 610mm multiplied by 220mm, and the volume can be reduced to about 57% before folding; the bulk of the handling belt can be reduced to 45% before folding. Therefore, the effect of miniaturization is very remarkable.
The present invention is not limited to the above embodiments, and any other various forms of products can be obtained by anyone in the light of the present invention. All equivalent changes and modifications made in accordance with the claims of the present invention should be covered by the present invention.

Claims (10)

1. A drag-and-hang stretcher is characterized in that: comprises a front supporting frame (1), a front self-locking joint (2), a middle supporting frame (3), a rear self-locking joint (4), a supporting fabric (5), a safety fixing ring (6), a rear supporting frame (7) and a movable wheel assembly (8);
the front supporting frame (1) is connected with the middle supporting frame (3) through the front self-locking joint (2);
the rear supporting frame (7) is connected to the middle supporting frame (3) through the rear self-locking joint (4);
the front support frame (1), the middle support frame (3) and the rear support frame (7) respectively comprise two longitudinal rods (11) and at least one transverse rod (12) for connecting the two longitudinal rods; the two ends of the cross rod (12) are tilted upwards; two longitudinal rods of the front support frame (1) and the rear support frame (7) are symmetrically provided with a safety fixing ring (6);
the front self-locking joint (2) and the rear self-locking joint (4) are identical in structure and respectively comprise a joint seat (21), a locking pin (22), a sliding groove (23), a rotating joint (24), an unlocking sliding block (25) and a dustproof sheet (26); the sliding groove (23) is in a quarter arc shape, the locking pin (22) is positioned in the sliding groove (23), and bayonets (27) are arranged at the tail end and the middle part of the sliding groove (23) and used for fixing the locking pin (22);
the moving wheel assembly (8) is arranged at the tail end of the rear support frame (7); the moving wheel assembly comprises a wheel frame (81) and a moving wheel (82), and a gap is formed between the moving wheel and the wheel frame;
the supporting fabric (5) is respectively laid on the front supporting frame (1), the middle supporting frame (3) and the rear supporting frame (7) and sewn with the front supporting frame (1), the middle supporting frame (3) and the rear supporting frame (7).
2. The drag hanging stretcher of claim 1 wherein: the longitudinal rods (11) and the transverse rods (12) are made of reinforced carbon fiber composite material pipes.
3. The drag hanging stretcher of claim 2 wherein: and a rubber handle is arranged on the vertical rod (11).
4. The drag hanging stretcher of claim 3 wherein: the supporting fabric (5) is made of waterproof canvas.
5. The drag hanging stretcher of claim 4 wherein: the moving wheel (82) adopts two steel core rubber wheels, and the diameter of the wheel is 76 mm.
6. The drag hanging stretcher of claim 5 wherein: also comprises a towing strap (9), a safety belt (10), a safety fixing belt (13), a shoulder strap and a locking fastener;
the towing and hanging belt (9) is made of a woven belt material, two ends of the towing and hanging belt are fixedly connected to the safety fixing rings (6) of the front support frame and the rear support frame through hanging rings (91), and a limiting ring (92) is sewn in the middle of the towing and hanging belt (9);
the safety belt (10) is arranged in an X shape, is matched with a safety fixing belt for use and is used for firmly fixing the wounded;
the safety fixing belt (13) adopts an aviation cross insurance structure form;
the shoulder straps are made of soft cloth materials and are used for being carried on two sides of the shoulders of the carrying personnel during hauling and lifting;
the lock catch piece adopts an adjusting buckle or a buckle.
7. The drag hanging stretcher of claim 6 wherein:
a headrest is arranged on the front support frame (1).
8. The drag hanging stretcher according to claim 7 characterized in that a foot peg belt (14) is also provided at the safety securing ring (6) of the rear support frame (7); the two ends of the pedal belt (14) are provided with connecting holes, and the pedal belt is sewn by soft cloth.
9. A lifting belt is characterized by comprising a restraining belt (15), a main lifting belt (16), a chest auxiliary belt (17), a chest auxiliary belt lock catch (18), a waist fixing belt (19) and a waist fixing belt lock catch (20);
two main hoisting belts (16) are arranged, one end of each main hoisting belt (16) is in a closed ring shape, and the other end of each main hoisting belt (16) is connected to the chest auxiliary belt (17) and the waist fixing belt (19) through sewing;
the binding belt (15) is arranged on the outer side of the main hoisting belt (16) and is used for binding the two main hoisting belts (16) together;
the chest auxiliary belt lock catch (18) is positioned on the chest auxiliary belt (17) and used for locking the chest auxiliary belt (17);
the waist fixing belt lock catch (20) is located on the waist fixing belt (19) and used for locking the waist fixing belt (19).
10. A wounded sling, comprising a trailed stretcher according to any one of claims 1-8 and/or a lifting belt according to claim 9.
CN202010197950.3A 2020-03-19 2020-03-19 Drag-hanging stretcher and wounded lifting appliance Pending CN111297574A (en)

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CN202010197950.3A CN111297574A (en) 2020-03-19 2020-03-19 Drag-hanging stretcher and wounded lifting appliance

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022126297A1 (en) * 2020-12-14 2022-06-23 张延梅 Rescue stretcher

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022126297A1 (en) * 2020-12-14 2022-06-23 张延梅 Rescue stretcher

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