CN114767396A - Rapidly-detachable field rescue stretcher and use method thereof - Google Patents

Abstract

The invention relates to a rapidly detachable field rescue stretcher and a using method thereof, belonging to the technical field of medical stretchers. The foldable stretcher comprises a foldable frame and stretcher cloth detachably connected with the frame, wherein the frame comprises two longitudinal connecting rods, the two longitudinal connecting rods are connected through a foldable transverse connecting rod, and the end parts of the longitudinal connecting rods are also provided with detachably connected handrails; the horizontal connecting rod with be equipped with the first connecting portion that are used for connecting stretcher cloth on the vertical connecting rod, stretcher cloth is equipped with all around with first connecting portion matched with second connecting portion. Can reduce to transporting process to wounded once, can accomplish not to wounded's direct contact transport even, can accomplish the transporting process, reduce secondary damage's possibility.

Description

Rapidly-detachable field rescue stretcher and use method thereof

Technical Field

The invention belongs to the technical field of medical stretchers, and particularly relates to a rapidly detachable field rescue stretcher and a using method thereof.

Background

In the process of treating the wounded, a stretcher is one of important carriers in the wounded transportation process, the wounded are generally transported to a hospital bed in 3 steps, the first step is to move the wounded to the stretcher, the second step is to move the wounded on the stretcher to a transport vehicle and transport the wounded to a medical point by the vehicle, and the third step is to move the wounded away from the transport vehicle and transport the wounded to the hospital bed by the stretcher. The process needs to be completed by cooperation of multiple persons, or secondary injury can be caused, particularly in battlefield environments or field rescue, the injured person is seriously injured, and the fractured injured person such as cervical vertebra is not suitable for frequent transportation. In the existing treatment steps, the wounded are lifted on a stretcher, transported to a treatment point and lifted on a sickbed, and the process has the condition of twice direct contact with the wounded for carrying, so that the wounded can be secondarily injured in the process, and the treatment difficulty is increased.

Disclosure of Invention

In view of this, the invention aims to provide a rapidly detachable field rescue stretcher and a use method thereof, which can reduce the process that a wounded person can lie on a sickbed by carrying the wounded person once, even can complete the carrying process without directly contacting and carrying the wounded person, and reduce the possibility of secondary injury.

In order to achieve the purpose, the invention provides the following technical scheme:

a rapidly detachable field rescue stretcher comprises a foldable frame and stretcher cloth detachably connected with the frame, wherein the frame comprises two longitudinal connecting rods, the two longitudinal connecting rods are connected through a foldable transverse connecting rod, and the end parts of the longitudinal connecting rods are also provided with detachably connected handrails; the transverse connecting rod and the longitudinal connecting rod are provided with first connecting parts used for connecting the stretcher cloth, and second connecting parts matched with the first connecting parts are arranged on the periphery of the stretcher cloth.

Furthermore, the first connecting portion with the second connecting portion are for gluing the magic subsides, be equipped with the detachable headrest on the stretcher cloth.

Further, first connecting portion formula couple as an organic whole, the second connecting portion are soft clitellum, be equipped with the detachable headrest on the stretcher cloth.

Further, one end of the transverse connecting rod is provided with a threaded hole, and the threaded hole is connected with a screw rod penetrating through the first longitudinal connecting rod; the screw rod is also provided with a knob; the other end of the transverse connecting rod is fixed on the second longitudinal connecting rod.

Further, the transverse connecting rod is a hollow pipe; the transverse connecting rods are divided into two sections from the middle, and the two sections of transverse connecting rods are connected through a hinge support capable of being folded downwards; a fixed baffle is fixedly arranged in one section of the transverse connecting rod, the fixed baffle is connected with one end of a spring positioned in the transverse connecting rod, the other end of the spring is connected with an L-shaped bolt, one part of the L-shaped bolt is positioned in the transverse connecting rod and is used for splicing the two sections of the transverse connecting rod, and the other part of the L-shaped bolt extends to the outside of the transverse connecting rod through a guide rail on the transverse connecting rod; the guide rail is axially arranged along the transverse connecting rod, and an L-shaped limiting opening used for limiting the movement of the L-shaped bolt is further formed in one side, close to the spring, of the guide rail.

Further, the handrail and the longitudinal connecting rod are in threaded matching connection.

Furthermore, the handrail comprises a storage groove, a support rod arranged at one end of the storage groove and rotationally connected with the handrail, and a button clamping device for controlling the rotation of the support rod;

the button clamping device comprises an upper chamber rod, one end of the upper chamber rod is fixedly connected with the side wall of the first pipe body in the button clamping device, and the other end of the upper chamber rod extends out of the handrail through a guide rail hole formed in the handrail in the axial direction; the first pipe body is a hollow pipe, the bottom of the first pipe body is open, the top of the first pipe body is connected with a second spring fixedly arranged on the button clamping device, and the side wall of the first pipe body is provided with a fine hole for the winding rope b to pass through and a first convex tooth for clamping; an annular baffle is further arranged inside the first pipe body, and inner clamping teeth penetrate through the middle of the annular baffle; the bottom of the inner latch is of a conical structure, and the top of the inner latch is connected with the winding rope b;

a second pipe body is correspondingly arranged at the opening end of the first pipe body, and the outer diameter of the second pipe body is smaller than the inner diameter of the first pipe body; a reed is arranged in the second pipe body, the reed is arc-shaped, and a through hole is formed in the side wall of the second pipe body, which is opposite to the arc-shaped top end of the reed;

the button clamping device further comprises a button which is arranged on the handrail and can be pressed, a shifting tooth which is correspondingly matched with the through hole in the second pipe body is arranged on the button in a rotating mode, a torsion spring for aligning is arranged on a rotating shaft of the shifting tooth, and the free end of the torsion spring is connected with a baffle fixedly arranged on the button; the button is further connected with a U-shaped structure, the U-shaped structure surrounds the outside of the second pipe body, the outer side end, far away from the button, of the U-shaped structure is connected with a third spring, one end of the third spring is connected with the U-shaped structure, the other end of the third spring is fixed on a blocking plate, the blocking plate is fixed at the bottom of the handrail, and a fixed pulley is arranged at the top of the blocking plate; a second convex tooth matched with the first convex tooth is arranged at the inner side end of the U-shaped structure far away from the button;

the winding cable b is connected with one end of the stay bar through a fine hole in the side wall of the first pipe body and a plurality of fixed pulleys, one side of the stay bar, opposite to the winding cable b, is also connected with a winding cable a, and the other end of the winding cable a is connected with a first spring positioned at the bottom of the handrail through the fixed pulleys.

The use method of the rapidly detachable field rescue stretcher comprises the following steps: tiling the stretcher cloth to on placing the stretcher cloth with the wounded, then pass the wounded from upper portion with the frame, arrange the stretcher cloth in on, with second connecting portion on the stretcher cloth and the first connecting portion interconnect on the frame, then lift the wounded into the transport vechicle and transport, when taking into the sick bed, directly place the stretcher on the sick bed, take the frame away with first connecting portion and the separation of second connecting portion for next wounded's treatment.

Further, rotating a knob connected with the cross beam rod and the first longitudinal connecting rod to change the distance between the longitudinal connecting rods so as to adjust the tightness of the bearing surface of the stretcher cloth;

when the stretcher needs to be folded, the L-shaped bolt is moved along the spring direction, the spring is compressed, the L-shaped bolt is rotated to be fixed on the L-shaped limiting opening, the bolt is withdrawn from the other section of cross rod, and the frame is rotated and folded along the hinged support; when the frame needs to be fixed, the two sections of transverse connecting rods are contacted together, the L-shaped bolt is rotated to leave the L-shaped limiting opening, and under the action of the elastic force of the spring, the L-shaped bolt moves along the guide rail and is inserted into the transverse connecting rod at the other end, so that the locking of the two sections of transverse connecting rods is realized.

Further, the opening and closing method of the stay bar,

pulling the loading rod to enable the first pipe body and the inner clamping teeth in the first pipe body to move together, enabling the first pipe body to penetrate through the U-shaped structure and be sleeved on the second pipe body, loosening the loading rod, enabling the third spring to rebound, and enabling the first convex teeth and the second convex teeth to be clamped with each other to enable the first pipe body to be fixed outside the second pipe body; the inner latch enters the second tube body, is clamped and fixed with the hole in the side wall of the second tube body under the extrusion of the reed, fixes the inner latch, and at the moment, the winding rope b is in a loose and unstressed state;

the button is pressed for the first time, so that the U-shaped structure is translated and the third spring is compressed, the second convex tooth moves along with the U-shaped structure, the first convex tooth and the second convex tooth are far away from each other, the first pipe body moves upwards under the action of the second spring, when the button is pressed for the first time, the shifting tooth is blocked by the first pipe body and rotates around the self axis, the shifting tooth cannot enter the hole in the side wall of the second pipe body, and the inner clamping tooth is still clamped inside the second pipe body; the first pipe body and the inner latch are far away from each other, so that the winding rope b is stretched, and the winding rope b drives the stay bar to rotate until the stay bar is perpendicular to the handrail; opening the stay bar;

and the button is pressed for the second time, the shifting teeth enter the holes in the side wall of the second pipe body, the inner clamping teeth are ejected out, the inner clamping teeth are separated from the second pipe body, at the moment, the distance between the first pipe body and the inner clamping teeth is reduced, the winding rope b enters a loose state, and the winding rope a returns the support rod into the handrail under the tension of the first spring.

The invention has the beneficial effects that:

in the portable detachable rescue stretcher designed by the invention, the soft bearing surface of the stretcher is easy to assemble and separate from the stretcher frame body, the stretcher can be directly placed under a sickbed, and then the stretcher is taken down, so that the process that a wounded person lies on the sickbed can be reduced by carrying the wounded person once, even the wounded person can be carried without directly contacting with the wounded person, the process can be completed, the possibility of secondary injury is reduced, and the rescue efficiency is increased. The stretcher frame is foldable, the folding frame design can be disassembled on the handrails, the stacking volume of the stretcher is reduced, and the stretcher is convenient for carrying by an individual soldier or carrying in large-scale transportation. But the vaulting pole of auto-eject can make personnel lift wounded and need park when the ground rest, with vaulting pole from 4 handrail departments auto-eject, conveniently place the stretcher with subaerial, make wounded not contact with ground to can press the button once more with the vaulting pole is automatic to be retrieved, very big user of stretcher of having made things convenient for.

Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention. The objectives and other advantages of the invention may be realized and attained by the means of the instrumentalities and combinations particularly pointed out hereinafter.

Drawings

For the purposes of promoting a better understanding of the objects, aspects and advantages of the invention, reference will now be made to the following detailed description taken in conjunction with the accompanying drawings in which:

fig. 1 is a schematic view of a rapidly detachable field rescue stretcher;

fig. 2 is a schematic view of another rapidly detachable field rescue stretcher;

FIG. 3 is a schematic view of a connecting structure of a horizontal connecting rod and a vertical connecting rod with adjustable lengths;

FIG. 4 is a schematic view of a transverse connecting rod fixing connection structure;

FIG. 5 is a schematic view of the connection structure of the transverse link when folded;

FIG. 6 is a schematic path diagram of the L-shaped pin;

FIG. 7 is a schematic view of the connection structure of the armrest;

fig. 8 is a schematic view of the armrest structure with automatic opening and closing stay bars;

fig. 9 is an enlarged schematic view of the structure at C of fig. 8.

Reference numerals are as follows: the vertical connecting rod 1, the horizontal connecting rod 2, the handrail 3, the stretcher cloth 4, the headrest 5, the magic tape 401, the magic tape 402, the annular belt 403, the hook 101, the knob 201, the screw 202, the L-shaped bolt 203, the spring 204, the fixed baffle 205, the hinged support 206, the guide rail 207, the L-shaped limiting opening 208, the support rod 301, the first spring 302, the fixed pulley 303, the fixed baffle 304, the accommodating groove 305, the rotating member 306, the first tube 311, the fine hole 312, the annular baffle 313, the first convex tooth 314, the second spring 315, the upper chamber 316, the guide rail hole 317, the inner snap tooth 318, the second tube 321, the spring 322, the button 331, the shifting tooth 332, the torsion spring 333, the baffle 334, the U-shaped structure 335, the second convex tooth 336, the blocking plate 341 and the third spring 342.

Detailed Description

The following embodiments of the present invention are provided by way of specific examples, and other advantages and effects of the present invention will be readily apparent to those skilled in the art from the disclosure herein. The invention is capable of other and different embodiments and of being practiced or of being carried out in various ways, and its several details are capable of modification in various respects, all without departing from the spirit and scope of the present invention. It should be noted that the drawings provided in the following embodiments are only for illustrating the basic idea of the present invention in a schematic way, and the features in the following embodiments and embodiments may be combined with each other without conflict.

Wherein the showings are for the purpose of illustration only and not for the purpose of limiting the invention, shown in the drawings are schematic representations and not in the form of actual drawings; for a better explanation of the embodiments of the present invention, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.

The same or similar reference numerals in the drawings of the embodiments of the present invention correspond to the same or similar components; in the description of the present invention, it should be understood that if there is an orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", "front", "rear", etc., based on the orientation or positional relationship shown in the drawings, it is only for convenience of description and simplification of description, but it is not intended to indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore the terms describing the positional relationship in the drawings are only used for illustrative purposes and are not to be construed as limiting the present invention, and the specific meaning of the terms described above will be understood by those skilled in the art according to the specific circumstances.

Referring to fig. 1-2, a rapidly detachable field rescue stretcher is suitable for various field rescue places to realize rapid rescue of wounded persons. Comprises a foldable frame and a stretcher cloth 4 detachably connected with the frame, wherein the frame comprises a transverse connecting rod 2, a longitudinal connecting rod 1 and handrails 3; the transverse connecting rod 2 and the longitudinal connecting rod 1 are provided with a first connecting part for connecting the stretcher cloth 4, the periphery of the stretcher cloth 4 is provided with a second connecting part matched with the first connecting part,

referring to fig. 1, the first connecting portion and the second connecting portion are made of an adhesive material, such as a hook and loop fastener, or other adhesive materials that can be adhered and detached, and the first connecting portion and the second connecting portion can be adhered or separated by the adhesive hook and loop fastener; specifically, the magic tapes 402 around the stretcher 4 are round hairs, the magic tapes on the transverse connecting rod 2 and the longitudinal connecting rod 1 are hook hairs, and the two hook hairs are matched with each other for fixing. Stretcher cloth 4 is still equipped with detachable headrest 5, and setting up of headrest 5 can increase the travelling comfort of wounded on the stretcher, also fixes through can pasting the magic between stretcher cloth 4 and the headrest 5, and magic subsides 401 in the stretcher cloth 4 are round hair, and all have the setting at the both ends of stretcher cloth 4 to adapt to the wounded that the equidirectional laid down, magic subsides on the headrest 5 are the hook hair, with the round hair cooperation fixed connection on the stretcher cloth 4.

Preferably, the first connecting portion and the second connecting portion may be connected to the soft annular belt 403 by using hooks 101, and referring to fig. 2, a plurality of integral hooks 101 are uniformly disposed on the rods of the transverse connecting rod 2 and the longitudinal connecting rod 1, the hooks 101 are uniformly distributed on the rods of the transverse connecting rod 2 and the longitudinal connecting rod 1, and the free ends of the hooks are directed to the outer ends of the frame, so as to be conveniently connected to the soft annular belt 403 on the stretcher cloth 4.

When the wounded is cured, the stretcher cloth 4 is laid flat, and the wounded is placed on the stretcher cloth 4, or the stretcher cloth 4 is directly penetrated through the body of the wounded; then from top to bottom pass the wounded with the frame, arrange in on stretcher cloth 4, with the second connecting portion interconnect on stretcher cloth 4 and the first connecting portion on the frame, make the wounded be located whole stretcher, then lift the wounded into the transport vechicle and transport, when taking into the sick bed, directly place the stretcher on the sick bed, with first connecting portion and second connecting portion separation, take the frame away fast for next wounded's treatment, it just can realize the treatment of a large amount of wounded through the frame of a stretcher.

Referring to fig. 3, a connection structure capable of adjusting the tightness of the stretcher cloth 4 adjusts the tightness of the stretcher cloth 4 by adjusting the distance between two longitudinal links 1. One end of a transverse connecting rod 2 is fixed on a second longitudinal connecting rod 1 on the left side, a connecting hole with internal threads is formed in the other end of the transverse connecting rod 2, a screw 202 with a knob 201 vertically penetrates through a first longitudinal connecting rod 1 on the right side and is connected with the connecting hole of the transverse connecting rod 2 through external threads on the end part, and A, B two stop surfaces are further formed in the first longitudinal connecting rod 1, so that the screw 202 and the first longitudinal connecting rod are fixed, the screw 202 can only rotate around the axis of the screw and cannot move left and right relative to A, B two stop surfaces; when the stretcher cloth 4 needs to be tightened, the knob 201 is rotated anticlockwise, the screw rod 202 is rotated, the screw rod 202 and the connecting hole move relatively, the screw rod 202 moves towards the direction far away from the transverse connecting rod 2, the first longitudinal connecting rod is driven to be far away from the second longitudinal connecting rod, the distance between the first longitudinal connecting rod and the second longitudinal connecting rod is increased, the bearing surface of the stretcher cloth 4 is in a tightened state, a wounded person can have better lying experience, and the wounded person can be better fixed; when the stretcher cloth 4 needs to be taken down, the knob 201 is rotated in the opposite direction, the screw 202 approaches to the transverse connecting rod 2 along the connecting hole, the first longitudinal connecting rod 1 approaches to the second longitudinal connecting rod 1, the bearing surface of the stretcher cloth 4 is loosened, and the stretcher cloth 4 can be taken down quickly.

Referring to fig. 4-6, the folding portion of the foldable frame is formed by dividing the transverse link 2 into two sections from the middle, wherein one section of the transverse link is connected to the first longitudinal link through the screw 202, and the other section of the transverse link 2 is fixed to the second longitudinal link; the two sections of the transverse connecting rods 2 are hollow pipes, and the interiors of the two sections of the transverse connecting rods are hollow and used for moving or inserting the L-shaped bolt; the breaks are connected by a hinge bracket 206 that can be folded down; the hinge bracket 206 is formed by two metal sheets respectively connected to two sections of the cross link 2, and when the cross links 2 are connected together, the whole hinge bracket 206 and the cross link 2 form a triangle. A guide rail 207 is arranged on a section of the transverse connecting rod 2 fixedly connected with the second longitudinal connecting rod 1 and used for limiting the motion path of the L-shaped bolt 203, the guide rail 207 is arranged along the axial direction of the transverse connecting rod 2, and an L-shaped limiting opening 208 is further arranged at one end, close to the spring, of the guide rail 207 and used for fixing the L-shaped bolt 203; the L-shaped bolt 203 is connected with the spring 204, a fixed baffle 205 for blocking the spring 204 is arranged at the other end of the spring 204, and a blocking piece is fixed on the transverse connecting rod 2; the L-shaped pin 203 can move along the guide rail 207, so that a part of the pin in the cross link is inserted into the other cross link 2, and the two cross links 2 are fixed.

When the stretcher needs to be folded, the part of the L-shaped bolt 203 extending out of the transverse connecting rod 2 is moved to move towards the spring 204 along the guide rail 207, the spring 204 is compressed, when the L-shaped limiting opening 208 is reached, the L-shaped bolt 203 is rotated to be fixed in the L-shaped limiting opening 208, at the moment, the L-shaped bolt 203 is withdrawn from the other section of transverse rod, and the two sections of transverse rods are separated; meanwhile, the transverse connecting rods 2 in the two longitudinal connecting rods 1 are separated at the same time, and the whole frame can be rotated and folded along the hinge support 206; when the frame needs to be fixed, the two sections of transverse connecting rods 2 are contacted together, the L-shaped bolt 203 is rotated to leave the L-shaped limiting opening 208, under the action of the elastic force of the spring 204, the L-shaped bolt 203 moves along the guide rail 207, one end of the L-shaped bolt is inserted into the transverse connecting rod 2 at the other end, the two sections of transverse connecting rods 2 are locked, after all the transverse connecting rods 2 between the longitudinal connecting rods 1 are locked, the frame is fixed, the stacking volume of the stretcher is reduced in the whole process, and the stretcher is convenient for a single soldier to carry or is carried in large-scale transportation.

Referring to fig. 7, a threaded rod is disposed on one end surface of a handrail 3, a threaded hole matched with the threaded rod is disposed on the end surface of a longitudinal connecting rod 1, the handrail 3 can be detachably connected or replaced with the threaded hole of the longitudinal connecting rod 1 through the threaded rod, and different handrails 3 are adapted to different working conditions, such as an antiskid handrail used in rainforests, a cotton handrail used in extremely cold regions, or a handrail structure using an automatic opening and closing support rod.

As shown in fig. 8-9, the handrail structure with automatic opening and closing support rods is provided with the support rods 301 on the handrail 3, the support rods 301 are support legs for supporting a stretcher to be placed on the ground, when a person lifting the stretcher needs to have a rest, the stretcher can be placed on the ground to prevent the wounded from contacting the ground, so as to prevent infection, and the existing stretcher mostly adopts the fixed support rods vertical to the frame, so that the stretcher is large in occupied space and inconvenient to carry.

In this embodiment, a supporting rod 301 and a receiving slot 305 for receiving the supporting rod 301 are disposed in the middle of the armrest 3, the supporting rod 301 is rotatably disposed on the sidewall of the armrest 3, and the rotating member 306 is disposed in the middle of the armrest 3, and optionally, the rotating member 306 is an axis passing through the supporting rod 301 and connected to the sidewall of the armrest, so that the supporting rod 301 can rotate around the axis. One part of the stay bar 301 is positioned inside the handrail 3, the other part of the stay bar 301 is positioned outside the handrail 3, the opposite sides of one end of the stay bar 301 extending into the handrail 3 are respectively connected with a winding rope a and a winding rope b, and the winding rope a and the winding rope b respectively provide forces in two different directions to enable the stay bar 301 to rotate around the rotating piece 306; the rope a is connected with the first spring 302 at the bottom of the handrail 3 through a pulley, and the rope b passes through the fixed pulley 303 at the top fixed baffle 304 of the handrail 3, a plurality of fixed pulleys 303 at the side wall of the handrail 3, enters the button clamping device, passes through the fixed pulley 303 on the baffle plate 341, passes through the pore 312 at the upper part of the first tube body 311, and is connected with the inner clamping tooth 318. The position of the cable winding a and b connected with the supporting rod 301 and the fixed pulley passed by the supporting rod can be adaptively adjusted according to the actual stress direction.

As shown in fig. 9, a first tube 311 is arranged in the button fastening device, the first tube 311 is a hollow tube, one end of the first tube 311 is open, the other end of the first tube is connected with a second spring 315 fixed on the top of the button fastening device, and the outer side wall of the first tube 311 is provided with a fine hole 312 for passing the winding rope b and a first convex tooth 314 for clamping; one side opposite to the fine hole 312 is also connected with an upper rifling rod 316, the upper rifling rod 316 extends out of the handrail 3 through a guide rail hole 317 on the handrail 3, and the guide rail hole 317 is formed along the axial direction of the handrail 3; an annular baffle 313 is further arranged inside the first tube body 311, and the inner latch 318 penetrates through the annular baffle 313; the inner latch 318 is in the shape of a long tube, and a free end far away from the cable b is provided with a conical latch.

The open end of the first pipe 311 is correspondingly provided with a second pipe 321, and the outer diameter of the second pipe 321 is smaller than the inner diameter of the first pipe 311; the first pipe body 311 can be sleeved outside the second pipe body 321, a spring 322 is arranged in the second pipe body 321, the spring 322 is fixed in the second pipe body 321 in an arc shape, and a hole is formed in the side wall of the second pipe body 321 opposite to the top of the arc spring 322; for engaging with the tapered teeth at the end of the inner teeth 318.

The button clamping device further comprises a button 331 which is arranged on the armrest 3 and can be pressed, a shifting tooth 332 which is matched with the hole of the second pipe body 321 is arranged on the button 331, the shifting tooth 332 is rotatably arranged on the button 331, a torsion spring 333 is arranged on a rotating shaft of the shifting tooth 332, and a baffle 334 is arranged at the free end of the torsion spring 333; the torsion spring 333 and the baffle 334 are used for returning the shifting teeth 332, so that the free ends of the shifting teeth 332 are opposite to the holes formed in the side wall of the second pipe body 321 under the condition that the shifting teeth 332 are free from other external forces; the button 331 is further connected with a U-shaped structure 335, the U-shaped structure 335 surrounds the second pipe body 321, a second convex tooth 336 matched with the first convex tooth 314 is arranged at the inner side end of the U-shaped structure 335, a third spring 342 is further connected to the outer side of the second convex tooth 336, one end of the third spring 342 is connected with the U-shaped structure 335, and the other end of the third spring is fixed on the blocking plate 334 and used for springback resetting of the button 331.

When the handrail 3 with the automatic opening and closing support rod structure is used, the upper cavity rod 316 is pulled along the guide rail hole 317 on the handrail 3, so that the first tube 311 and the inner latch 318 inside the first tube 311 move downwards together, the first tube 311 passes through the U-shaped structure 335 and is sleeved on the second tube 321, the upper cavity rod 316 is released, the third spring 342 rebounds, the first convex tooth 314 and the second convex tooth 336 are clamped with each other, and the first tube 311 is fixed outside the second tube 321; the inner latch 318 enters the second tube 321, and under the extrusion of the spring 322, the tapered latch at the end of the inner latch 318 is fixedly fastened with the hole on the side wall of the second tube 321 to fix the inner latch 318, and at this time, the winding rope b is in a loose and unstressed state;

the button 331 is pressed for the first time, so that the U-shaped structure 335 translates and compresses the third spring 342, the second convex tooth moves along with the U-shaped structure 335, the first convex tooth 314 and the second convex tooth are away from each other, so that the first pipe body 311 moves upwards under the action of the second spring 315, when the button 331 is pressed for the first time, the shifting tooth 332 is blocked by the first pipe body 311 and rotates around the self axis, the shifting tooth 332 cannot enter the hole in the side wall of the second pipe body 321, and therefore, the inner clamping tooth 318 is still clamped inside the second pipe body 321; at this time, the first tube 311 and the inner latch 318 are away from each other, that is, the fine hole 312 on the first tube 311 is away from the inner latch 318, so that the winding rope b is stretched, at this time, the tension of the second spring 315 is greater than the tension of the first spring 302, and the winding rope b drives the brace 301 to rotate until the brace 301 is perpendicular to the armrest 3; the stay 301 is opened;

and when the button 331 is pressed for the second time, the shifting tooth 332 enters the hole in the side wall of the second pipe body 321 to eject the tapered latch of the inner latch 318, so that the inner latch 318 is separated from the second pipe body 321, at the moment, the distance between the first pipe body 311 and the inner latch 318 is reduced, the winding rope b enters a loose state, and the winding rope a returns the support rod 301 to the accommodating groove 305 of the handrail 3 under the pulling force of the first spring 302, so that the one-time opening and closing of the support rod 301 is completed. When the device is used next time, the upper rifling rod 316 is pulled on continuously, the whole using process is simple and convenient, and the device is convenient to use, store and transport.

Finally, the above embodiments are only intended to illustrate the technical solutions of the present invention and not to limit the present invention, and although the present invention has been described in detail with reference to the preferred embodiments, it will be understood by those skilled in the art that modifications or equivalent substitutions may be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions, and all of them should be covered by the claims of the present invention.

Claims (10)

1. The utility model provides a but open-air rescue stretcher of quick dismantlement which characterized in that: the foldable stretcher comprises a foldable frame and stretcher cloth detachably connected with the frame, wherein the frame comprises two longitudinal connecting rods, the two longitudinal connecting rods are connected through a foldable transverse connecting rod, and the end parts of the longitudinal connecting rods are also provided with detachably connected handrails; the horizontal connecting rod with be equipped with the first connecting portion that are used for connecting stretcher cloth on the vertical connecting rod, stretcher cloth is equipped with all around with first connecting portion matched with second connecting portion.

2. A rapidly detachable field rescue stretcher as claimed in claim 1, wherein: the first connecting portion with the second connecting portion are sticky magic tapes, and detachable headrests are arranged on the stretcher cloth.

3. A rapidly detachable field rescue stretcher as claimed in claim 1, wherein: the first connecting portion formula couple as an organic whole, the second connecting portion is soft clitellum, be equipped with the detachable headrest on the stretcher cloth.

4. A rapidly detachable field rescue stretcher as claimed in claim 1, wherein: one end of the transverse connecting rod is provided with a threaded hole, and the threaded hole is connected with a screw rod penetrating through the first longitudinal connecting rod; the screw rod is also provided with a knob; the other end of the transverse connecting rod is fixed on the second longitudinal connecting rod.

5. A rapidly detachable field rescue stretcher as claimed in claim 1, wherein: the transverse connecting rod is a hollow pipe; the transverse connecting rods are divided into two sections from the middle, and the two sections of transverse connecting rods are connected through a hinge support capable of being folded downwards; a fixed baffle is fixedly arranged in one section of the transverse connecting rod, the fixed baffle is connected with one end of a spring positioned in the transverse connecting rod, the other end of the spring is connected with an L-shaped bolt, one part of the L-shaped bolt is positioned in the transverse connecting rod and is used for splicing the two sections of the transverse connecting rod, and the other part of the L-shaped bolt extends to the outside of the transverse connecting rod through a guide rail on the transverse connecting rod; the guide rail is axially arranged along the transverse connecting rod, and an L-shaped limiting opening used for limiting the movement of the L-shaped bolt is further formed in one side, close to the spring, of the guide rail.

6. A rapidly detachable field rescue stretcher as claimed in claim 1, characterized in that: the handrail is connected with the longitudinal connecting rod in a matching mode through threads.

7. A rapidly detachable field rescue stretcher as claimed in claim 1, wherein: the handrail comprises a storage groove, a support rod arranged at one end of the storage groove and rotationally connected with the handrail, and a button clamping device for controlling the rotation of the support rod;

the button clamping device comprises an upper chamber rod, one end of the upper chamber rod is fixedly connected with the side wall of the first pipe body in the button clamping device, and the other end of the upper chamber rod extends out of the handrail through a guide rail hole formed in the handrail in the axial direction; the first pipe body is a hollow pipe, the bottom of the first pipe body is open, the top of the first pipe body is connected with a second spring fixedly arranged on the button clamping device, and the side wall of the first pipe body is provided with a fine hole for the winding rope b to pass through and a first convex tooth for clamping; an annular baffle is further arranged inside the first pipe body, and inner clamping teeth penetrate through the middle of the annular baffle; the bottom of the inner latch is of a conical structure, and the top of the inner latch is connected with the winding rope b;

a second pipe body is correspondingly arranged at the opening end of the first pipe body, and the outer diameter of the second pipe body is smaller than the inner diameter of the first pipe body; a reed is arranged in the second pipe body, the reed is arc-shaped, and a through hole is formed in the side wall of the second pipe body, which is opposite to the arc-shaped top end of the reed;

the button clamping device further comprises a button which is arranged on the handrail and can be pressed, a shifting tooth which is correspondingly matched with the through hole in the second pipe body is arranged on the button in a rotating mode, a torsion spring for aligning is arranged on a rotating shaft of the shifting tooth, and the free end of the torsion spring is connected with a baffle fixedly arranged on the button; the button is further connected with a U-shaped structure, the U-shaped structure surrounds the outside of the second pipe body, the outer side end, far away from the button, of the U-shaped structure is connected with a third spring, one end of the third spring is connected with the U-shaped structure, the other end of the third spring is fixed on a blocking plate, the blocking plate is fixed at the bottom of the handrail, and a fixed pulley is arranged at the top of the blocking plate; a second convex tooth matched with the first convex tooth is arranged at the inner side end of the U-shaped structure far away from the button;

the winding cable b is connected with one end of the stay bar through a fine hole in the side wall of the first pipe body and a plurality of fixed pulleys, one side of the stay bar, opposite to the winding cable b, is also connected with a winding cable a, and the other end of the winding cable a is connected with a first spring positioned at the bottom of the handrail through the fixed pulleys.

8. A use method of a rapidly detachable field rescue stretcher is characterized by comprising the following steps: use of a rapidly detachable field rescue stretcher according to any one of claims 1-7, comprising the steps of: tiling the stretcher cloth, and place the wounded on the stretcher cloth, then pass the wounded from upper portion with the frame, arrange the stretcher cloth in on, with second connecting portion on the stretcher cloth and first connecting portion interconnect on the frame, then lift the wounded into the transport vechicle and transport, when bringing into the sick bed, directly place the stretcher on the sick bed, take the frame away with first connecting portion and second connecting portion separation for next wounded's treatment.

9. The use method of a rapidly detachable field rescue stretcher according to claim 8, characterized in that: rotating a knob connected with the crossbeam rod and the first longitudinal connecting rod to change the distance between the longitudinal connecting rods so as to adjust the tightness of the bearing surface of the stretcher cloth;

when the stretcher needs to be folded, the L-shaped bolt is moved along the spring direction, the spring is compressed, the L-shaped bolt is rotated to be fixed at the L-shaped limiting opening, the bolt is withdrawn from the other section of cross rod, and the frame is rotated and folded along the hinged support; when the frame needs to be fixed, the two sections of transverse connecting rods are contacted together, the L-shaped bolt is rotated to leave the L-shaped limiting opening, and under the action of the elastic force of the spring, the L-shaped bolt moves along the guide rail and is inserted into the transverse connecting rod at the other end, so that the locking of the two sections of transverse connecting rods is realized.

10. The use method of a rapidly detachable field rescue stretcher according to claim 8, characterized in that: the opening and closing method of the stay bar is that,

pulling the upper chamber rod to enable the first pipe body and the inner clamping teeth in the first pipe body to move together, enabling the first pipe body to penetrate through the U-shaped structure and be sleeved on the second pipe body, loosening the upper chamber rod, enabling the third spring to rebound, and enabling the first convex teeth and the second convex teeth to be clamped with each other to enable the first pipe body to be fixed outside the second pipe body; the inner latch enters the second tube body, is clamped and fixed with the hole in the side wall of the second tube body under the extrusion of the reed, fixes the inner latch, and at the moment, the winding rope b is in a loose and unstressed state;

the button is pressed for the first time, so that the U-shaped structure is translated and compresses the third spring, the second convex tooth moves along with the U-shaped structure, the first convex tooth and the second convex tooth are far away from each other, the first pipe body moves upwards under the action of the second spring, when the button is pressed for the first time, the shifting tooth is blocked by the first pipe body and rotates around the self axis, the shifting tooth cannot enter the hole in the side wall of the second pipe body, and the inner clamping tooth is still clamped inside the second pipe body; the first pipe body and the inner latch are far away from each other, so that the winding rope b is stretched, and the winding rope b drives the stay bar to rotate until the stay bar is perpendicular to the handrail; opening the stay bar;

and the button is pressed for the second time, the shifting teeth enter the holes in the side wall of the second pipe body, the inner clamping teeth are ejected out, the inner clamping teeth are separated from the second pipe body, at the moment, the distance between the first pipe body and the inner clamping teeth is reduced, the winding rope b enters a loose state, and the winding rope a returns the support rod into the handrail under the tension of the first spring.

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