CN104546317A - GPS (global position system) seeking-help machine specialized in tri-forked wheel folding stretcher bed - Google Patents

Abstract

The invention discloses a GPS (global position system) seeking-help machine specialized in a tri-forked wheel folding stretcher bed. The GPS seeking-help machine specialized in the tri-forked wheel folding stretcher bed comprises the stretcher bed and the GPS seeking-help machine, wherein the stretcher bed comprises horizontal rods, the horizontal rods are connected through stretcher cloth, the horizontal rods comprise a left horizontal rod, a right horizontal rod and a connecting rod, a left connecting board is arranged between the left horizontal rod and the connecting rod, the left horizontal rod and the left connecting board as well as the left connecting board and the connecting rod are respectively hinged and fixed through a first hinged shaft and a second hinged shaft, a right connecting board is arranged between the connecting rod and the right horizontal rod, the connecting rod and the right connecting board as well as the right connecting board and the right horizontal rod are respectively hinged and fixed through a third hinged shaft and a fourth hinged shaft, vertical boards are fixedly connected under the left horizontal rod and the right horizontal rod, the vertical boards are connected with bed legs through a fifth hinged shaft, the bed legs comprise an upper part bed leg and a lower part bed leg, the upper end of the upper part bed leg is hinged to the vertical boards, the upper part of the lower part bed leg sleeves the interior of the upper part bed leg, two tri-forked wheel frames are correspondingly arranged on the two sides of the lower part bed legs, and universal wheels are respectively arranged on the three ends of the tri-forked wheel frames.

Description

Be exclusively used in the GPS emergency instrument of Trident Type wheel folding stretcher

Technical field

The invention belongs to technical field of medical instruments, relate to a kind of stretcher, particularly relate to a kind of GPS emergency instrument being exclusively used in Trident Type wheel folding stretcher.

Background technology

Stretcher is that one hinders instrument for transporting rescuing of the wounded, and it supports one piece of canvas lathe bed primarily of two supporting thills, Cheng Gang two ends connecting handle and pulley.But along with the extensive use of stretcher, in order to adapt to various applied environment, thus stretcher is also developed gradually by original Simple stretcher bed.But at present the widely used stretcher of institute is all generally long standard stretcher, carry at hospital internal and spacious spacious place, use proper, in addition, it is regional that it is also widely used in China's natural disaster.But the natural disaster that China occurs in recent years mostly appears at some remote sites, the remote mountain areas that such as The mountains are high and the roads are steep, when natural disaster appears in these places, ambulance cannot be close, thus needs the people's own army and the local masses urgent patient to be transported by stretcher or stretcher.Due to the restriction by geographical environment, thus existing standard stretcher is difficult to use on a large scale in the area of these generation natural disasters, thus has occurred Folding stretcher.

Application number be 201020298201.1 utility model patent disclose a kind of Foldable medical truckle, be equipped with 4 short struts and 4 long fulcrum bars below the platen of this Foldable medical truckle respectively; The lower end of short strut is equipped with universal wheel; The top of long fulcrum bar is provided with a pole rotating shaft node makes it be divided into upper rack posts and lower fulcrum bar, and the lower end of lower fulcrum bar is equipped with universal wheel; Lower fulcrum bar in 4 long fulcrum bars is connected with 4 short connecting rods respectively by hinged, and the upper end of each short connecting rod is by being hingedly mounted on below platen, and the middle part of each short connecting rod is provided with a connecting rod rotating shaft node makes it be divided into two sections, and the lower end of short connecting rod is provided with hands handle; In 4 long fulcrum bars, the long fulcrum bar that every two spans are long is divided into one group, every group leader's pole has two long connecting rods, the upper articulation of the lower fulcrum bar in one end of each long connecting rod and one of them long fulcrum bar, and the connecting rod rotating shaft node in the short connecting rod on the other end of long connecting rod and another long fulcrum bar is hinged; Every group leader's pole has a hook to be arranged on one of them short connecting rod.

Though this Foldable medical truckle has light and handy portable easy-to-use feature, but there is the area of natural disaster, its various extreme goods and materials shortage, thus except reform of nature environmental limit uses Foldable medical truckle, also should the effect of Foldable medical truckle be performed to maximum, several functions is provided, meet the different needs.

Summary of the invention

For solving the problems of the technologies described above, the object of the present invention is to provide a kind of GPS emergency instrument being exclusively used in Trident Type wheel folding stretcher with multiduty natural disaster, except the transport wounded of satisfied routine, can also use as desk, stool.

For achieving the above object, technical scheme of the present invention is:

A kind of GPS emergency instrument being exclusively used in Trident Type wheel folding stretcher, it is characterized in that: comprise stretcher and be arranged at the GPS emergency instrument on stretcher, described stretcher comprises the cross bar being positioned at both sides, connected by stretcher cloth between the cross bar of described both sides, described cross bar comprises left cross bar, right cross bar and the connecting rod between left cross bar and right cross bar, left connecting plate is provided with between described left cross bar and connecting rod, left cross bar and left connecting plate, hinged fixing respectively by the first jointed shaft, the second jointed shaft between left connecting plate and connecting rod; Right connecting plate is provided with between described connecting rod and right cross bar, described connecting rod and right connecting plate, hinged fixing respectively by the 3rd jointed shaft, the 4th jointed shaft between right connecting plate and right cross bar; All riser is fixedly connected with below described left cross bar, right cross bar, described riser is connected with footpost by the 5th jointed shaft, described footpost comprises top footpost and bottom footpost, footpost upper end, described top and riser hinged, footpost top, described bottom is sheathed in the footpost of top, described bottom footpost can move along the length direction of top footpost and is locked by retaining mechanism, footpost both sides, described bottom correspondence is provided with two Trident Type vehicle wheel frames, and three terminations of described Trident Type vehicle wheel frame are provided with universal wheel respectively.

Operation principle of the present invention is: due to left cross bar and left connecting plate, left connecting plate and connecting rod, connecting rod and right connecting plate, right connecting plate and right cross bar, all hinged fixing by corresponding jointed shaft between riser and footpost, thus footpost can rotate around riser and realize footpost to pack up, left cross bar can rotate around left connecting plate and be folded by left cross bar, and right cross bar can rotate around right connecting plate and be folded by right cross bar; After left cross bar, right cross bar all fold, two footposts are positioned at left cross bar, right cross bar inside, effectively reduce the floor space of folding stretcher; And due to the existence of stretcher cloth, stool can be worked as when thus vertically being placed by the stretcher folded use, use desk can be worked as during the stretcher horizontal positioned folded, thus meet the different needs, one-object-many-purposes, effectively can alleviate the problem that the part goods and materials in natural disaster area are extremely short to a certain extent.In addition, arrange two-stage footpost below cross bar, bottom footpost can move up and down in the footpost of top, also can in the footpost of top around lower bed leg axis rotate, thus realize footpost height adjustable, direction is adjustable; Bottom footpost is y-type structure, and the both sides correspondence of bottom footpost is connected with two universal wheels, and because each footpost bottom is connected with two universal wheels, thus whole stretcher just has eight universal wheels.When carrying the wounded, eight universal wheels of stretcher and earth surface, the distribution of weight of the wounded gives eight universal wheels, and the active force that each universal wheel bears compared with four universal wheels reduces half, the degree of wear of universal wheel reduces greatly, and service life effectively extends; In addition, owing to adding four supporting-points (four universal wheels), the Area of bearing of stretcher increases greatly, and the stability of stretcher is increased more.

Object of the present invention can also be realized by following approach:

Described GPS instrument of crying for help comprises GPS module, three buffers, is connected to the shift register of three buffer output ends, is connected to the clock module of shift register, the outfan of described GPS module and shift register is connected to wireless transmitter module, one intervalometer model calling is in wireless transmitter module, the input of described three buffers inputs 83,79 and 83 level signals respectively, clock module, buffer, GPS module and wireless transmitter module are all connected to power module, and described power module provides electric power for system.

Left cross bar, right cross bar are connected with latch by rope, and footpost is provided with the pin hole suitable with latch.

Be provided with elastic cord above stretcher cloth, described elastic cord one end is fixed in the cylinder of side cross bar, and the described elastic cord other end is provided with a snatch, and described snatch is buckled on opposite side cross bar, described elastic cord accompanies two pieces of magnetic fixed blocks.

Described elastic cord twists in the rotating shaft in cylinder, and described rotating shaft two ends are fixed in the bearing at cylinder inner wall two ends, the rotating shaft at elastic cord two ends is respectively arranged with a coil component spring.

The end of left cross bar, right cross bar is equipped with Anti-slip cover.

Compared with prior art, beneficial effect of the present invention is:

1, in the present invention, left cross bar and left connecting plate, left connecting plate and connecting rod, connecting rod and right connecting plate, right connecting plate and right cross bar, all hinged fixing by corresponding jointed shaft between riser and footpost, corresponding component can rotate around another parts, thus folding stretcher is folded into rectangular structure, may correspond to when the stretcher folded is in vertical placement, horizontal positioned and use as stool, desk, thus can one-object-many-purposes, meet the different needs, effectively can alleviate the problem that the part goods and materials in natural disaster area are extremely short to a certain extent; In addition arrange two-stage footpost below cross bar, bottom footpost can move up and down in the footpost of top, also can rotate around lower bed leg axis in the footpost of top, thus realize footpost height adjustable; Bottom footpost is y-type structure, and the both sides correspondence of bottom footpost is connected with two universal wheels, and because each footpost bottom is connected with two universal wheels, thus whole stretcher just has eight universal wheels.When carrying the wounded, eight universal wheels of stretcher and earth surface, the distribution of weight of the wounded gives eight universal wheels, and the active force that each universal wheel bears compared with four universal wheels reduces half, the degree of wear of universal wheel reduces greatly, and service life effectively extends; In addition, owing to adding four supporting-points (four universal wheels), the Area of bearing of stretcher increases greatly, and the stability of stretcher is increased more; In addition, Trident Type vehicle wheel frame is connected bottom footpost, three universal wheels on Trident Type vehicle wheel frame are rotatable, and have two universal wheels and earth surface simultaneously, thus transport in wounded process with folding stretcher run into ladder or stone hinder time, can stone be crossed easily or climb up ladder, and without the need to manually bed body being lifted.

2, in the present invention, when rescue personnel is stranded, after open system switch, power module provides electric power, system electrification for system.83,89 and 83 level signals that input inputs are passed to three to shift register by three buffers respectively.Convert three parallel 8 bit data signals to 24 Bits Serial data that baud rate is 9600 under the clock signal that three shift registers provide at clock module, and these data are transferred to wireless transmitter module.Timer module controls the geographic location signal alternate emission successively by SOS distress signal and GPS module transmission in wireless transmitter module separated in time simultaneously.Search and rescue and to carry out Decoding Analysis after mechanism receives signal and accurately fast can arrive rescue place and just succour.

3, in the present invention, left cross bar, right cross bar are connected with latch by rope, and footpost is provided with the pin hole suitable with latch, thus folding stretcher is after folding, latch inserts in corresponding pin hole, makes footpost be unlikely to double swerve, and impact uses.

4, in the present invention, stretcher cloth arranges elastic cord, the patient that can effectively avoid stretcher to cause because jolting when carrying patient by this elastic cord drops and causes secondary injury.

5, in the present invention, be equipped with Anti-slip cover at the end of left cross bar, right cross bar, effectively can increase the frictional force between palm and cross bar, stretcher more not easily drops.

Accompanying drawing explanation

Fig. 1 is structural representation of the present invention;

Fig. 2 is the top view of Fig. 1;

Fig. 3 is the structural representation of footpost in the present invention;

Fig. 4 is state diagram when footpost folds in the present invention;

Fig. 5 is the final folded state diagram of folding stretcher in the present invention;

Fig. 6 is the scheme of installation of elastic cord in the present invention;

Fig. 7 is B-B structural representation of Fig. 6;

Fig. 8 is that the system of GPS emergency instrument in the present invention connects block diagram;

Wherein, Reference numeral is: 1-left cross bar, 2-the first jointed shaft, 3-left connecting plate, 4-the second jointed shaft, 5-connecting rod, 6-the three jointed shaft, 7-right connecting plate, 8-the four jointed shaft, 9-right cross bar, 10-latch, 11-Anti-slip cover, 12-riser, 13-the five jointed shaft, 14-pin hole, 15-footpost, 16-universal wheel, 17-stretcher cloth, 18-elastic cord, 19-Trident Type vehicle wheel frame, 181-cylinder, 182-snatch, 183-rotating shaft, 184-bearing, 185-coil component spring, 186-magnetic fixed block, 20-top footpost, 21-bottom footpost, 23-retaining mechanism.

Detailed description of the invention

Below in conjunction with accompanying drawing, the present invention will be further described:

Embodiment one

Be exclusively used in a GPS emergency instrument for Trident Type wheel folding stretcher, comprise stretcher and be arranged at the GPS emergency instrument on stretcher, this stretcher is mainly used in the area conveying patient that natural disaster occurs.This stretcher comprises the cross bar of both sides, is connected between the cross bar of both sides by stretcher cloth 17, and stretcher cloth 17 two ends are corresponding to be respectively set on the cross bar of both sides, and forms easy stretcher.The cross bar of both sides includes left cross bar 1 and right cross bar 9, is provided with connecting rod 5 between left cross bar 1 and right cross bar 9.Left connecting plate 3 is provided with between left cross bar 1 and connecting rod 5, hinged fixing by the first jointed shaft 2, second jointed shaft 4 respectively between left cross bar 1 and left connecting plate 3, between left connecting plate 3 and connecting rod 5, and left cross bar 1 can rotate around the first jointed shaft 2, because the effect bottom left cross bar 1 at left connecting plate 3 upwards can not rotate around the first jointed shaft 2, be thus just unlikely to when the wounded are positioned on stretcher because left cross bar 1 upwards rotates and fall.Right connecting plate 7 is provided with between connecting rod 5 and right cross bar 9, pass through the 3rd jointed shaft 6 respectively between connecting rod 5 and right connecting plate 7, between right connecting plate 7 and right cross bar 9, the 4th jointed shaft 8 is hinged fixing, and right cross bar 9 can rotate around the 4th jointed shaft 8, because the effect bottom right cross bar 9 at right connecting plate 7 upwards can not rotate around the 4th jointed shaft 8, be thus just unlikely to when the wounded are positioned on stretcher because left cross bar 1 upwards rotates and fall.All be fixedly connected with riser 12 below left cross bar 1 and right cross bar 9, riser 12 is connected with footpost 15 by the 5th jointed shaft.Footpost 15 comprises top footpost 20 and bottom footpost 21, and top footpost 20 top and riser 12 are articulated and connected, and top footpost 20 is provided with retaining mechanism 23.This retaining mechanism 23 is made up of handle and the trip bolt be fixedly connected on handle, and trip bolt one end is passed the hole on top footpost 20 top and part trip bolt is stretched into intracavity in top footpost 20, and top footpost 20 bottom is arranged with bottom footpost 21.Bottom footpost 21 adopts " Y " type structure, bottom footpost 21 top is set in top footpost 20, and bottom footpost 21 can move up and down along the axis direction of top footpost 20 in top footpost 20, also can rotate along the axis of bottom footpost 21 in top footpost 20, bottom footpost 21 both sides correspondence is provided with two Trident Type vehicle wheel frames 19, this Trident Type vehicle wheel frame 19 also can rotate around jointed shaft with footpost 15 bottom-hinged is fixing, and three terminations of Trident Type vehicle wheel frame 19 are provided with universal wheel 16 respectively.

Described GPS instrument of crying for help comprises GPS module, three buffers, is connected to the shift register of three buffer output ends, is connected to the clock module of shift register, the outfan of described GPS module and shift register is connected to wireless transmitter module, one intervalometer model calling is in wireless transmitter module, the input of described three buffers inputs 83,89 and 83 level signals respectively, clock module, buffer, GPS module and wireless transmitter module are all connected to power module, and described power module provides electric power for system.When geologist occurring being stranded, after open system switch, power module provides electric power, system electrification for system.83,89 and 83 level signals that input inputs are passed to three to shift register by three buffers respectively.83, the binary code of 89 and 83 is respectively 10000011,10001001,10000011, and the 8 parallel-by-bit signals of 10000011,10001001 and 10000011 represent the acsii code value of " SOS " respectively, represent SOS distress signal.Three shift registers convert at the clock signal that clock module provides three the parallel 8 bit data signals that decline the 24 Bits Serial data that baud rate is 9600 to, and these data are transferred to wireless transmitter module.Timer module controls the geographic location signal alternate emission successively of wireless transmitter module separated in time inland river SOS distress signal and GPS module transmission simultaneously.Search and rescue and to carry out Decoding Analysis after mechanism receives signal and accurately fast can arrive rescue place and just succour.

Due to left cross bar 1 and left connecting plate 3, left connecting plate 3 and connecting rod 5, connecting rod 5 and right connecting plate 7, all hinged fixing by corresponding jointed shaft between right connecting plate 7 and right cross bar 9, riser and footpost 15, thus footpost 15 can rotate around riser and realize footpost 15 to pack up, left cross bar 1 can rotate around left connecting plate 3 and be folded by left cross bar 1, and right cross bar 9 can rotate around right connecting plate 7 and be folded by right cross bar 9; After left cross bar 1, right cross bar 9 all fold, two footposts 15 are positioned at left cross bar 1, right cross bar 9 inside, effectively reduce the floor space of folding stretcher; And due to the existence of stretcher cloth 17, stool can be worked as when thus vertically being placed by the stretcher folded use, use desk can be worked as during the stretcher horizontal positioned folded, thus meet the different needs, one-object-many-purposes, effectively can alleviate the problem that the part goods and materials in natural disaster area are extremely short to a certain extent.In addition, arrange two-stage footpost below cross bar, bottom footpost 21 can move up and down in top footpost 20, also can in top footpost 20 around bottom footpost 21 axis rotate, thus realize footpost height adjustable, direction is adjustable; Bottom footpost 21 is y-type structure, the equal correspondence in both sides of bottom footpost 21 is connected with Trident Type vehicle wheel frame, a Trident Type vehicle wheel frame is provided with three universal wheels 22, and owing to being connected with six universal wheels 22 in each footpost bottom 21, thus whole stretcher just has 24 universal wheels 22.When carrying the wounded, 16 universal wheels 22 of stretcher and earth surface, the distribution of weight of the wounded gives 16 universal wheels 22, and the active force that each universal wheel bears compared with four universal wheels reduces 1/4th, the degree of wear of universal wheel reduces greatly, and service life effectively extends; In addition, owing to adding 12 supporting-points (12 universal wheels), the Area of bearing of stretcher increases greatly, and the stability of stretcher is increased more.In addition, Trident Type vehicle wheel frame is connected bottom footpost, three universal wheels on Trident Type vehicle wheel frame are rotatable, and have two universal wheels and earth surface simultaneously, thus transport in wounded process with folding stretcher run into ladder or stone hinder time, can stone be crossed easily or climb up ladder, and without the need to manually bed body being lifted.

When rescue personnel is stranded, after open system switch, power module provides electric power, system electrification for system.83,89 and 83 level signals that input inputs are passed to three to shift register by three buffers respectively.Convert three parallel 8 bit data signals to 24 Bits Serial data that baud rate is 9600 under the clock signal that three shift registers provide at clock module, and these data are transferred to wireless transmitter module.Timer module controls the geographic location signal alternate emission successively by SOS distress signal and GPS module transmission in wireless transmitter module separated in time simultaneously.Search and rescue and to carry out Decoding Analysis after mechanism receives signal and accurately fast can arrive rescue place and just succour.

Embodiment two

On the basis of embodiment one, left cross bar 1 and right cross bar 9 are all connected with latch 10 by rope, the footpost 15 below left cross bar 1 and right cross bar 9 offers pin hole 14, size, the position of this latch 10 and pin hole 14 are suitable.When footpost 15 rotates after 90 ° around riser, the pin hole 14 on footpost 15 is just in time positioned at latch 10 position, thus can be inserted by latch 10 comparatively easily in corresponding pin hole 14.

Left cross bar 1, right cross bar 9 are connected with latch 10 by rope, footpost 15 is provided with the pin hole 14 suitable with latch 10, and thus folding stretcher is after folding, and latch 10 inserts in corresponding pin hole 14, make footpost 15 be unlikely to double swerve, impact uses.

Embodiment three

On the basis of embodiment one or embodiment two, be provided with elastic cord 18 above stretcher cloth 17, the cross bar that elastic cord 18 two ends correspond respectively to both sides connects one to one.Elastic cord 18 one end is fixed in the cylinder 181 of side cross bar, and elastic cord 18 other end is provided with a snatch 182, and snatch 182 is buckled in the opposite side of cross bar, elastic cord 18 accompanies two pieces of magnetic fixed blocks 186.Described elastic cord 18 twists in the rotating shaft 183 in cylinder 181, and rotating shaft 183 two ends are fixed in the bearing 184 at cylinder 181 inwall two ends, and in the rotating shaft 183 at elastic cord 18 two ends, each cover has a coil component spring 185.

When this elastic cord 18 works, elastic cord 18 two ends are separately fixed on the cross bar of both sides, elastic cord 18 one end is fixed in the cylinder 181 of side cross bar, elastic cord 18 is provided with a snatch 182 in one end in addition, snatch 182 is buckled on the cross bar of opposite side, elastic cord 18 accompanies two pieces of magnetic fixed blocks 186, elastic cord 18 twists in the rotating shaft 183 in cylinder 181, rotating shaft 183 two ends are fixed in the bearing 184 at cylinder 181 inwall two ends, and in the rotating shaft 183 at elastic cord 18 two ends, each cover has a coil component spring 185.First snatch 182 is untied in use, by two pieces of magnetic fixed blocks 186 separately, because the rotating shaft 183 of elastic cord 18 inside originally stretching out bears certain moment of torsion of coil component spring 185, so elastic cord 18 retracts in cylinder 181, the material of elastic cord 18 is cotton, then the wounded is placed on stretcher, then elastic cord 18 is pulled out, degree of tightness is covered abdominal part or the lower limb portion of the wounded, by the adhesive above mutually of two pieces of magnetic fixed blocks 186, the length of fixing elastic cord 18, then snatch 182 is buckled on the cross bar of opposite side, thus effectively prevent the wounded from dropping from stretcher in the course of conveying of top mother-in-law and causing secondary injury.

Embodiment four

On the basis of embodiment one, embodiment two or embodiment three, the end of left cross bar 1, right cross bar 9 is equipped with Anti-slip cover 11. and is equipped with Anti-slip cover at the end of left cross bar 1, right cross bar 9, effectively can increase the frictional force between palm and cross bar, stretcher more not easily drops.

Claims (6)

1. one kind is exclusively used in the GPS emergency instrument of Trident Type wheel folding stretcher, it is characterized in that: comprise stretcher and be arranged at the GPS emergency instrument on stretcher, described stretcher comprises the cross bar being positioned at both sides, connected by stretcher cloth (17) between the cross bar of described both sides, described cross bar comprises left cross bar (1), right cross bar (9) and the connecting rod (5) be positioned between left cross bar (1) and right cross bar (9), left connecting plate (3) is provided with between described left cross bar (1) and connecting rod (5), left cross bar (1) and left connecting plate (3), respectively by the first jointed shaft (2) between left connecting plate (3) and connecting rod (5), second jointed shaft (4) is hinged fixing, right connecting plate (7) is provided with between described connecting rod (5) and right cross bar (9), described connecting rod (5) and right connecting plate (7), hinged fixing respectively by the 3rd jointed shaft (6), the 4th jointed shaft (8) between right connecting plate (7) and right cross bar (9), described left cross bar (1), right cross bar (9) below is all fixedly connected with riser (12), described riser (12) is connected with footpost (15) by the 5th jointed shaft (13), described footpost (15) comprises top footpost (20) and bottom footpost (21), footpost (20) upper end, described top and riser (12) hinged, footpost (21) top, described bottom is sheathed in top footpost (20), can move along the length direction of top footpost (20) and be locked by retaining mechanism (23) in described bottom footpost (21), footpost (21) both sides, described bottom correspondence is provided with two Trident Type vehicle wheel frames (19), three terminations of described Trident Type vehicle wheel frame (19) are provided with universal wheel (16) respectively.

2. be exclusively used in the GPS emergency instrument of Trident Type wheel folding stretcher as claimed in claim 1, it is characterized in that: described GPS emergency instrument comprises GPS module, three buffers, be connected to the shift register of three buffer output ends, be connected to the clock module of shift register, the outfan of described GPS module and shift register is connected to wireless transmitter module, one intervalometer model calling is in wireless transmitter module, the input of described three buffers inputs 83 respectively, 79 and 83 level signals, clock module, buffer, GPS module and wireless transmitter module are all connected to power module, described power module provides electric power for system.

3. be exclusively used in the GPS emergency instrument of Trident Type wheel folding stretcher as claimed in claim 1, it is characterized in that: left cross bar (1), right cross bar (9) are connected with latch (10) by rope, footpost (15) is provided with the pin hole (14) suitable with latch (10).

4. be exclusively used in the GPS emergency instrument of Trident Type wheel folding stretcher as claimed in claim 1, it is characterized in that: stretcher cloth (17) top is provided with elastic cord (18), described elastic cord (18) one end is fixed in the cylinder (181) of side cross bar, described elastic cord (18) other end is provided with a snatch (182), described snatch (182) is buckled on opposite side cross bar, described elastic cord (18) accompanies two pieces of magnetic fixed blocks (186).

5. be exclusively used in the GPS emergency instrument of Trident Type wheel folding stretcher as claimed in claim 4, it is characterized in that: described elastic cord (18) twists in the rotating shaft (183) in cylinder (181), described rotating shaft (183) two ends are fixed in the bearing (184) at cylinder (181) inwall two ends, the rotating shaft (183) at elastic cord (18) two ends are respectively arranged with a coil component spring (185).

6., as the GPS being exclusively used in Trident Type wheel folding stretcher as described in arbitrary in claim 1-5 cries for help instrument, it is characterized in that: the end of left cross bar (1), right cross bar (9) is equipped with Anti-slip cover (11).