A double stretcher carrying system convenient for use in narrow environments

Abstract

The present invention relates to a double-person stretcher carrying system that is convenient for use in narrow environments, which includes a rigid support mechanism, a flexible load mechanism and a flexible carrying mechanism; the rigid support mechanism includes two stretcher poles, a plurality of rhombus-shaped connecting rods and a reinforcing strut; the plurality of rhombus-shaped connecting rods are longitudinally spaced between the two stretcher poles; the reinforcing strut runs through the guide tube of the rhombus-shaped connecting rod and the connecting ring and has locking mechanisms at both ends; the flexible load mechanism is covered on the rigid support mechanism; the flexible carrying mechanism includes two pairs of soft annular shoulder straps. The double-person stretcher carrying system that is convenient for use in narrow environments of the present invention can be retracted to reduce the lateral width, and can be conveniently used in various abnormal environments, especially narrow environments.

Description

Technical Field

[0001] The invention belongs to the technical field of medical equipment, in particular to a double-person stretcher carrying system which is convenient for use in narrow environments. Background Art

[0002] Existing stretchers are mostly used in normal times, but are often unusable in emergency situations or wartime. For example, the injured need spinal fixation due to multiple injuries, but the existing stretcher system is mostly a two-rod and one-flexible load-bearing pad structure, which often causes the spine of the loaded injured to be concave, which may cause the risk of secondary injury. Secondly, the existing stretchers often rely on the lateral fixation of the chest belt to fix the loaded injured, and it is difficult to control the longitudinal displacement of the injured on the stretcher, especially the high-angle movement of people going up and down narrow stairs. In addition, the existing stretchers fail to consider the ability to work under no lighting or low lighting conditions in disaster situations, and for special situations The rescue work is often difficult to perform; further, the middle soft material of the existing stretcher is often a simple closed design, the air permeability of the personnel is poor, and there is a risk of covering up problems such as back bleeding; finally, the existing stretcher system has many restrictions on the hands of the stretcher bearer, and the relevant personnel are often unable to operate the stretcher. For sudden situations of the injured or the rough and bumpy walking road, it is difficult to perform timely intervention operations and maintain the self-walking posture because the hands are restricted to the stretcher pole to bear the weight, which can easily cause the stretcher bearer to fall or sprain the lower limb joints, etc. In severe cases, there is a risk of the stretcher bearer and the load person falling together. Summary of the invention

[0003] In view of the technical problem that existing stretchers are inconvenient to use in various abnormal environments, especially narrow environments, the purpose of the present invention is to provide a double stretcher carrying system that is convenient for use in narrow environments. The stretcher system can be conveniently used in various abnormal environments.

[0004] The double-person stretcher carrying system of the present invention, which is convenient for use in narrow environments, comprises a rigid supporting mechanism, a flexible load-bearing mechanism and a flexible carrying mechanism;

[0005] The rigid support mechanism includes two longitudinally arranged stretcher bars, a plurality of deformable diamond-shaped connecting rods and a reinforcing support rod;

[0006] The plurality of diamond-shaped connecting rods are longitudinally spaced between the two stretcher rods, and two transversely opposite fulcrums of each diamond-shaped connecting rod are directly connected to the stretcher rod or connected through a triangular connecting rod; among the longitudinally opposite fulcrums of each diamond-shaped connecting rod, two fulcrums at both ends are provided with guide tubes, and other fulcrums are provided with connecting rings;

[0007] The reinforcing strut passes through the guide tube and the connecting ring, and locking mechanisms are respectively provided at both ends of the reinforcing strut; the locking mechanism comprises a knob, a rotating shaft and a plurality of crank stoppers, one end of the rotating shaft is rotatably connected to the end of the reinforcing strut, and the other end of the rotating shaft is fixedly connected to the knob, an axial rack is provided on the surface of the rotating shaft, and the plurality of crank stoppers are respectively rotatably mounted on the end surface of the reinforcing strut through a pin shaft and are spaced around the rotating shaft, the end surface of the tail end of the crank stopper is a cylindrical surface, the cylindrical surface is provided with a stopper rack and meshes with the axial rack; when the rotating shaft rotates to drive the crank stopper to rotate around the pin shaft, the head end of the crank stopper can extend out or retract into the extended cylindrical surface of the reinforcing strut;

[0008] The flexible load mechanism is covered on the rigid support mechanism;

[0009] The flexible carrying mechanism comprises two pairs of soft annular shoulder straps, which are respectively connected to the two ends of the two stretcher poles through extension straps, and a transverse fixing strap is connected to the middle between the two extension straps at the same end.

[0010] Preferably, it also includes a covering mechanism, which includes a covering cloth, a pair of fan-shaped connectors and two side connectors; the side connectors and the stretcher rods are provided with corresponding snap-on slots, nylon buckles, buckles or magnets, so that the side connectors can be connected to the stretcher rods; the fan-shaped connectors include a plurality of skeletons hinged at the same fulcrum, the fulcrum of the fan-shaped connector can be connected to the end of the reinforcing support rod, and the ends of the two skeletons on the side can be connected to the ends of the side connectors; the covering cloth is connected between the two side connectors and between the fan-shaped connectors.

[0011] Preferably, the stretcher bar comprises a plurality of detachable sections, the sections of the stretcher bar are mutually sleeved and the connection is locked by a compressible marble buckle. The stretcher bar is similar to the handle of a foldable umbrella, when it needs to be connected, the marble clamping spring is inserted to stabilize the structure, and when it needs to be released, the relevant marble clamping spring is pressed to release it.

[0012] Preferably, the reinforcing strut is a retractable multi-segment structure. Further, the thickest segment is in the middle and becomes thinner segment by segment towards both ends.

[0013] The multi-stage design of the stretcher pole and the reinforcing support pole can adapt to people of different heights.

[0014] Preferably, a color marking module for displaying the condition of the person being carried is provided in a rotating or sliding manner in the stretcher pole, and the color marking module has a plurality of color areas corresponding to different conditions, and a window is provided on the outside of the stretcher pole at a position corresponding to the color marking module for displaying the color areas. In actual use, the color marking module can be rotated or slid according to the condition of the patient being carried, and the window can switch to display the corresponding color area. For example, the color area can be divided into green (stable condition), orange (moderate condition) and red (severe condition) according to the condition of the patient being carried.

[0015] The color marking modules can be distributed at both ends or both sides of one stretcher pole.

[0016] In order to indicate the condition of the loaded patient, an indicator light design can also be used, such as a design similar to a portable flashlight. The indicator light changes color, and a button is pressed to adjust the indicator light to emit different colors of light. For example: pressing a button once is green to turn on, pressing it again is orange, pressing it again is red, and pressing it again is off, which is a cycle. At the same time, it can be adjusted according to the actual situation of the loaded personnel to facilitate subsequent grading and classification processing.

[0017] Preferably, the flexible load mechanism is provided with mesh holes at the position corresponding to the back of the stretcher bearer. The above hollow design is conducive to ventilation of the patient and can also facilitate timely detection of bleeding problems in the back.

[0018] Preferably, it is provided with a series of shieldable fluorescent points. The design of the fluorescent points facilitates the fixation of the patient under low lighting or no lighting conditions, and the shieldable design of the fluorescent points can also ensure that the patient is not exposed during transportation. The fluorescent points can be set at any observable position on the rigid support mechanism, the flexible load mechanism, the flexible carrying mechanism and the covering mechanism.

[0019] Preferably, a long strip slot is provided on the stretcher bar, a simple infusion pole is provided in the slot, a fork is provided at the top of the simple infusion pole, and the bottom end is hinged in the slot.

[0020] Preferably, a suspension mechanism is provided on the side of the stretcher rod, and the suspension mechanism includes an arc-shaped hook, the bottom end of the arc-shaped hook is hinged on the stretcher rod, and the top is connected to one end of a spring through a cable of a non-retractable or retractable material, and the other end of the spring is fixed to the inner wall of the stretcher rod.

[0021] Preferably, the middle of the transverse fixing belt is an adjustable elastic connection structure connected by Velcro or buckle.

[0022] Preferably, the extension strap may be designed with reference to the adjustable length structure of a school bag strap.

[0023] Preferably, the rigid skeleton structure of the rigid support mechanism includes stretcher bars, diamond-shaped connecting rods, triangular connecting rods, etc., which are made of light and high-strength materials such as metal (aluminum alloy, aluminum-magnesium alloy, etc.) or carbon fiber.

[0024] Preferably, in order to adapt to different environments where the stretcher system is used, such as rainy days, snowy days, hot and direct sunlight days, and windy days, to achieve certain rainproof, windproof, strong sunlight proof, ice and snow proof, mosquito proof and other effects, the covering cloth can be made of lightweight foldable fabrics such as raincoat material, windproof material, sunlight proof material, cold-proof and heat-insulating material, mosquito net material, etc.

[0025] The double-person stretcher carrying system of the present invention, which is convenient for use in narrow environments, is suitable for first aid and transportation of personnel in emergency situations or disaster periods, and has the following advantages:

[0026] 1. In the rigid support mechanism, a number of diamond-shaped connecting rods and longitudinal reinforcing struts are designed between the two stretcher poles. On the one hand, the support of the spine can be strengthened to reduce the risk of secondary injury due to insufficient support after spinal injury; on the other hand, the reinforcing struts can be withdrawn, and then the diamond-shaped connecting rods can be extended longitudinally and contracted laterally, which can effectively reduce the lateral width and greatly reduce the occupied space of the entire stretcher system, which can be applied to narrow environments;

[0027] 2. In the rigid support mechanism, the head ends of the crank blocks of the locking mechanism at both ends of the reinforcing strut can extend or retract into the extended cylindrical surface of the reinforcing strut; when the head ends of the crank blocks are retracted into the extended cylindrical surface of the reinforcing strut, the two ends of the reinforcing strut can freely penetrate the guide tube, and when the head ends of the crank blocks extend out of the extended cylindrical surface of the reinforcing strut, the crank blocks can block the guide tube, thereby preventing the diamond-shaped connecting rod from longitudinally extending and laterally contracting, thereby playing the role of stretching the stretcher;

[0028] 3. The flexible load mechanism has a partial mesh hollow design on the back of the corresponding load personnel, which is conducive to ventilation of the patient and can also facilitate timely detection of bleeding problems in the back;

[0029] 4. A series of shieldable fluorescent spots are set up to facilitate the fixation of patients in low-light or no-light conditions. At the same time, the shieldable design of the fluorescent spots can also ensure that they are not exposed during transportation;

[0030] 5. In the flexible carrying mechanism, the flexible materials at both ends of the stretcher and the shoulder strap design can reduce the burden on the hands of the stretcher bearer. When necessary, both hands or one hand of the relevant personnel can be freed, which is conducive to the movement of the entire stretcher in complex road conditions or rugged areas; the horizontal fixing belt can be pulled toward the middle to resist the downward movement of the shoulder strap;

[0031] 6. The design of the hanging device has foldable hanging points on both sides of the stretcher, which is convenient for hanging urine bags and drainage bags, as well as foldable simple infusion stands, which are convenient for emergency blood transfusion and infusion operations during transportation;

[0032] 7. The design of the covering device allows the stretcher to be loaded with a frame-type foldable windproof mosquito net, which is convenient for protecting the transport of the injured under special circumstances. If necessary, the mosquito net can be replaced with isolation materials to help isolate the injured from the harsh external environment during the transport process or reduce the risk of potential contamination of the external environment by infected persons;

[0033] 8. Color marking modules of different colors are set on both sides, with eye-catching colors, which are convenient for dynamic assessment and timely judgment of the injuries of load personnel. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 is a schematic diagram of a double-person stretcher carrying system of the present invention that is convenient for use in a narrow environment;

[0035] Figure 2 It is a schematic diagram of the assembly of a double-person stretcher carrying system of the present invention that is convenient for use in narrow environments;

[0036] Figure 3 is a schematic diagram of the expansion of the covering mechanism of the present invention;

[0037] Figure 4 is a schematic diagram of a rigid support mechanism of the present invention;

[0038] Figure 5 is a schematic diagram of the contracted state of the locking mechanism of the present invention;

[0039] Figure 6 It is a schematic diagram of the locking mechanism of the present invention in the open and locked state;

[0040] Figure 7 is a disassembled schematic diagram of the locking mechanism of the present invention;

[0041] Figure 8 is a schematic diagram of the installation of the color marking module of the present invention;

[0042] Fig. 9 and Fig.10 They are schematic diagrams of two color marking modules of the present invention;

[0043] Fig.11 and Fig.12 This is a schematic diagram of the installation of the simple infusion pole of the present invention;

[0044] Fig.13 and Fig.14 It is a schematic diagram of the installation of the suspension mechanism of the present invention.

[0045] Reference numerals

[0046] Rigid support mechanism 1, stretcher pole 11, color marking module 111a / 111b, window 112, slot 113, simple infusion pole 114, arc hook 115, cable 116, spring 117, diamond connecting rod 12, reinforcing support rod 13, triangular connecting rod 14, guide tube 15, connecting ring 16, locking mechanism 17, knob 171, rotating shaft 172, crank stopper 173, cylindrical surface 173a;

[0047] Flexible load mechanism 2;

[0048] Flexible carrying mechanism 3, annular shoulder strap 31, extension strap 32, transverse fixing strap 33, connecting structure 34;

[0049] Covering mechanism 4, covering cloth 41, fan-shaped connecting piece 42, side connecting piece 43. DETAILED DESCRIPTION

[0050] The present invention will be further described below in conjunction with specific examples. It should be understood that the following examples are only used to illustrate the present invention and are not used to limit the scope of the present invention.

[0051] Example 1

[0052] Figure 1-Figure 3 A double-person stretcher carrying system for use in narrow environments according to a preferred embodiment of the present invention is shown, which includes a rigid supporting mechanism 1, a flexible load-bearing mechanism 2, a flexible carrying mechanism 3 and a covering mechanism 4.

[0053] The rigid support mechanism 1 comprises two longitudinally arranged stretcher rods 11 , four telescopically deformable diamond-shaped connecting rods 12 and a reinforcing support rod 13 .

[0054] like Figure 4 As shown, four diamond-shaped connecting rods 12 are provided, which are longitudinally spaced between two stretcher rods 11, and two laterally opposite fulcrums of each diamond-shaped connecting rod 12 are connected to the stretcher rod 11 through a triangular connecting rod 13; among the longitudinally opposite fulcrums of each diamond-shaped connecting rod 12, guide tubes 14 are provided at two fulcrums at both ends, and connecting rings 15 are provided at the other fulcrums.

[0055] The reinforcing rod 13 passes through the guide tube 14 and the connecting ring 15, and a locking mechanism 16 is provided at both ends; Figure 5-Figure 7As shown, the locking mechanism 16 includes a knob 161, a rotating shaft 162 and four crank stops 163. One end of the rotating shaft 162 is rotatably connected to the end of the reinforcing strut 13, and the other end of the rotating shaft 162 is fixedly connected to the knob 161. An axial rack is provided on the surface of the rotating shaft 162. The four crank stops 163 are respectively rotatably installed on the end surface of the reinforcing strut 13 through a pin shaft and are distributed around the rotating shaft 162 at intervals. The end surface of the tail end of the crank stop 163 is a cylindrical surface 163a, and the cylindrical surface 163a is provided with a stopper rack and meshes with the axial rack; when the rotating shaft 162 rotates to drive the crank stop 163 to rotate around the pin shaft, the head end of the crank stop 163 can extend or retract into the extended cylindrical surface of the reinforcing strut. When the head end of the crank stopper 163 retracts into the extended cylindrical surface of the reinforcing strut 13, the two ends of the reinforcing strut 13 can freely pass through the guide tube 14. When the head end of the crank stopper 163 extends out of the extended cylindrical surface of the reinforcing strut 13, the crank stopper 163 can block the guide tube 14, thereby preventing the diamond-shaped connecting rod 12 from longitudinally extending and laterally contracting, thereby playing the role of stretching the stretcher.

[0056] The flexible load mechanism 2 is covered on the rigid support mechanism 1. Preferably, the flexible load mechanism 2 is provided with mesh holes at the position corresponding to the back of the stretcher bearer. The above hollow design is conducive to ventilation of the patient and can also facilitate timely detection of bleeding problems in the back.

[0057] Preferably, the flexible loading mechanism 2 is a canvas or similar fabric that is resistant to pulling, which can be folded to reduce volume when not in use and opened when needed. Loading holes are reserved at the four corners of the flexible loading mechanism 2, and loading protrusions are reserved at corresponding positions of the two stretcher rods 11 of the stretcher, and the loading protrusions are inserted into the loading holes for positioning.

[0058] like Figure 4 As shown, the flexible carrying mechanism 3 includes two pairs of soft annular shoulder straps 31, which are respectively connected to the two ends of the two stretcher bars 11 through extension straps 32, and a transverse fixing strap 33 is connected in the middle between the two extension straps 32 at the same end. In the middle of the transverse fixing strap 33 is an adjustable elastic connection structure 34 connected by Velcro or buckle. Preferably, the extension strap 32 can refer to the adjustable length structure design of the school bag strap.

[0059] Covering mechanism 4, such as Figure 3 As shown, the covering mechanism 4 includes a covering cloth 41, a pair of fan-shaped connectors 42 and two side connectors 43; the side connectors 43 and the stretcher rod 11 are provided with corresponding snap-in slots, nylon buckles, buckles or magnets, so that the side connectors 43 can be connected to the stretcher rod 11; the fan-shaped connector 42 includes a plurality of skeletons hinged at the same fulcrum, the fulcrum of the fan-shaped connector 42 can be connected to the end of the reinforcing support rod 13, and the ends of the two skeletons on the side can be connected to the ends of the side connectors 43; the covering cloth 41 is connected between the two side connectors 43 and between the fan-shaped connectors 42.

[0060] Preferably, the stretcher bar 11 includes four detachable sections, the sections of the stretcher bar 11 are mutually sleeved and the connection is locked by a compressible marble buckle. The stretcher bar 11 is similar to the handle design of a foldable umbrella. When it needs to be connected, the marble clamp is inserted to stabilize the structure, and when it needs to be released, the relevant marble clamp is pressed to release it.

[0061] Preferably, the reinforcing strut 13 is a telescopic multi-segment structure, and the telescopic structure of the reinforcing strut 13 can refer to the structure of a TV antenna and a fishing rod. Further, the reinforcing strut 13 has the thickest segment in the middle, and becomes thinner segment by segment towards both ends.

[0062] Better, such as Figure 8 As shown, a color marking module 111a is provided in the stretcher bar 11 to display the condition of the person being carried. Fig. 9 As shown, the color marking module 111a is divided into a plurality of color areas corresponding to different conditions along the latitudinal direction, and a window 112 is provided at the position corresponding to the color marking module on the outside of the stretcher pole 11 for displaying the color area. In actual use, the color marking module 111a can be rotated according to the condition of the loaded patient, and the window 112 can switch to display the corresponding color area. For example, according to the condition of the loaded patient, the color area can be divided into green (stable condition), orange (moderate condition) and red (severe condition). Of course, the color marking module 111b can also be set to slide, such as Fig.10 As shown, at this time, the color area of ​​the color marking module 111b is divided into multiple areas along the axial direction.

[0063] Preferably, the color marking modules 111 a or 111 b may be distributed at both ends or both sides of one side of the stretcher pole 11 .

[0064] In order to indicate the condition of the loaded patient, an indicator light design can also be used, such as a design similar to a portable flashlight. The indicator light changes color, and a button is pressed to adjust the indicator light to emit different colors of light. For example: pressing a button once is green to turn on, pressing it again is orange, pressing it again is red, and pressing it again is off, which is a cycle. At the same time, it can be adjusted according to the actual situation of the loaded personnel to facilitate subsequent grading and classification processing.

[0065] Better, such as Fig.11 and 12 As shown, a long slot 113 may be provided on the stretcher bar 11, and a simple infusion rod 114 is provided in the slot 113. The top of the simple infusion rod 114 is provided with a fork, and the bottom end is hinged in the slot 113. The setting of the simple infusion rod 114 facilitates emergency blood transfusion and infusion operations during transportation.

[0066] Preferably, a hanging mechanism can be provided on the side of the stretcher bar 11 to facilitate the hanging of urine bags and drainage bags. Fig.13 and Fig.14As shown, the suspension mechanism includes an arc-shaped hook 115, the bottom end of which is hinged on the stretcher rod 11, and the top is connected to one end of a spring 117 through a non-retractable or retractable cable 116, and the other end of the spring 117 is fixed to the inner wall of the stretcher rod 11. Fig.13 As shown, the arc-shaped hook 115 is fixed as a part of the stretcher rod 11 by relying on the pulling force of the spring 117. Once items such as drainage bags or urine bags need to be hung, the arc-shaped hook 115 is pulled outward, and the gravity of the drainage bags or urine bags counteracts the retraction force of the spring 117, so that the stretcher can be hung with items. The hanging mechanism can be designed to have at least one or more on one side.

[0067] Preferably, the rigid skeleton structure of the rigid support mechanism 1 including the stretcher rod 11, the diamond connecting rod 12, the triangular connecting rod 13, and the connecting parts and the locking mechanism 17 can all be made of light and high-strength materials such as metal (aluminum alloy, aluminum-magnesium alloy, etc.) or carbon fiber.

[0068] Preferably, in order to adapt to different environments where the stretcher system is used, such as rainy days, snowy days, hot and direct sunlight days, and windy days, and to achieve certain effects of rainproof, windproof, strong sunlight proof, snow and ice proof, and mosquito proof, the covering cloth 41 can be made of light foldable fabrics such as raincoat material, windproof material, sunlight proof material, cold-proof and heat-insulating material, and mosquito net material. In addition, if the person on the load is a suspected infectious disease patient, the corresponding light covering cloth 41 can be changed to a splash-proof transparent material, which is convenient for observation on the one hand, and reduces the pollution of the relevant infectious source to the stretcher person and the external environment on the other hand.

[0069] Preferably, the double-person stretcher carrying system of the present invention, which is convenient for use in narrow environments, can also be provided with a series of shieldable fluorescent points. The design of the fluorescent points facilitates the fixation of the patient in low lighting or no lighting conditions, and the shieldable design of the fluorescent points can also ensure that the patient is not exposed during the transportation process.

[0070] Specifically, for example, a fluorescent or luminous device or an annular lighting device may be attached to the periphery of the stretcher pole 11. When it is not used or needs to be shielded, it can be surrounded by a shading material around the stretcher pole 11 and fixed at its head end by a nylon buckle; when the ambient lighting is weak, in a low lighting state or no lighting state, and a small amount of light is needed, the shading material can be opened to expose the fluorescent or luminous device or annular lighting device below. When an annular lighting device is used, a switch can be designed, which can be distributed as one or more around the two poles of the stretcher, and is symmetrically distributed, so as to facilitate the display of the outline structure of the stretcher in a low-light or no-light environment, and facilitate the treatment of personnel and the light supplement during the movement of the stretcher personnel.

[0071] The preferred embodiments of the present invention have been specifically described above, but the present invention is not limited to the embodiments. Those skilled in the art may make various equivalent modifications or substitutions without departing from the innovation of the present invention. These equivalent modifications or substitutions are all included in the scope defined by the claims of this application.

Claims

1. A double-person stretcher carrying system convenient for use in narrow environments, comprising a rigid support mechanism, a flexible load mechanism and a flexible carrying mechanism; The rigid support mechanism includes two longitudinally arranged stretcher bars, a plurality of deformable diamond-shaped connecting rods and a reinforcing support rod; The plurality of diamond-shaped connecting rods are longitudinally spaced between the two stretcher rods, and two transversely opposite fulcrums of each diamond-shaped connecting rod are directly connected to the stretcher rod or connected through a triangular connecting rod; among the longitudinally opposite fulcrums of each diamond-shaped connecting rod, two fulcrums at both ends are provided with guide tubes, and other fulcrums are provided with connecting rings; The reinforcing strut passes through the guide tube and the connecting ring, and locking mechanisms are respectively provided at both ends of the reinforcing strut; the locking mechanism comprises a knob, a rotating shaft and a plurality of crank stoppers, one end of the rotating shaft is rotatably connected to the end of the reinforcing strut, and the other end of the rotating shaft is fixedly connected to the knob, an axial rack is provided on the surface of the rotating shaft, and the plurality of crank stoppers are respectively rotatably mounted on the end surface of the reinforcing strut through a pin shaft and are spaced around the rotating shaft, the end surface of the tail end of the crank stopper is a cylindrical surface, the cylindrical surface is provided with a stopper rack and meshes with the axial rack; when the rotating shaft rotates to drive the crank stopper to rotate around the pin shaft, the head end of the crank stopper can extend out or retract into the extended cylindrical surface of the reinforcing strut; The flexible load mechanism is covered on the rigid support mechanism; The flexible carrying mechanism comprises two pairs of soft annular shoulder straps, which are respectively connected to the two ends of the two stretcher poles through extension straps, and a transverse fixing strap is connected to the middle between the two extension straps at the same end; It also includes a covering mechanism, which includes a covering cloth, a pair of fan-shaped connecting pieces and two side connecting pieces; the side connecting pieces and the stretcher rods are provided with corresponding buckle slots, nylon buckles, buckles or magnetic blocks, so that the side connecting pieces can be connected to the stretcher rods; the fan-shaped connecting piece includes a plurality of skeletons hinged at the same fulcrum, the fulcrum of the fan-shaped connecting piece can be connected to the end of the reinforcing support rod, and the ends of the two skeletons on the side can be connected to the ends of the side connecting piece; the covering cloth is connected between the two side connecting pieces and between the fan-shaped connecting pieces; The stretcher bar comprises a plurality of detachable sections, the sections of the stretcher bar are sleeved with each other and the connection points are locked by compressible marble buckles.

2. The double-person stretcher carrying system for use in narrow environments according to claim 1 is characterized in that: The reinforcing strut is a telescopic multi-segment structure.

3. The double-person stretcher carrying system for use in narrow environments according to claim 1, characterized in that: A color marking module for displaying the condition of the person on board is provided in a rotating or sliding manner in the stretcher pole. The color marking module has a plurality of color areas corresponding to different conditions. A window is provided on the outside of the stretcher pole at a position corresponding to the color marking module for displaying the color area.

4. The double-person stretcher carrying system for use in narrow environments according to claim 1, characterized in that: The flexible load mechanism is provided with mesh holes at a position corresponding to the back of the stretcher bearer.

5. The double-person stretcher carrying system for use in narrow environments according to claim 1 is characterized in that: It is provided with a series of fluorescent spots which can be shielded.

6. The double-person stretcher carrying system for use in narrow environments according to claim 1, characterized in that: A long strip-shaped slot is arranged on the stretcher bar, a simple infusion rod is arranged in the slot, a fork is arranged at the top end of the simple infusion rod, and the bottom end is hinged in the slot.

7. The double-person stretcher carrying system for use in narrow environments according to claim 1, characterized in that: A suspension mechanism is provided on the side of the stretcher rod, and the suspension mechanism includes an arc-shaped hook, the bottom end of the arc-shaped hook is hinged on the stretcher rod, and the top is connected to one end of a spring through a cable made of non-retractable or retractable material, and the other end of the spring is fixed to the inner wall of the stretcher rod.

8. The double-person stretcher carrying system for use in narrow environments according to claim 1, characterized in that: The middle of the transverse fixing belt is an adjustable elastic connection structure connected by Velcro or buckle.

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