Assembled stretcher

Abstract

The invention relates to the technical field of medical stretchers, in particular to an assembled stretcher which comprises a plurality of stretcher beams and a plurality of handheld rods, canvas is movably arranged between the two handheld rods, protection plates are movably arranged on the handheld rods and used for preventing a patient from being separated from the canvas, and air bag plates are arranged on the inner sides of the protection plates. By means of the arranged rolling and overturning unit, when a patient lies on canvas, operation can be started immediately, at the moment, the canvas pulls the rolling and overturning unit to rotate flexibly like driving force, then the protection plate at the position of the frame beam is driven to be overturned to the position above the body of the patient, the tedious binding step is omitted, and the rescue efficiency is greatly improved; the rotating pneumatic assembly can convert rotating force into air inflation for the air bag plate in the moving process of the rolling and overturning unit, the discomfort of the patient is greatly relieved, and the whole nursing process is more harmonious and smoother.

Description

Technical Field

[0001] The invention relates to the technical field of medical stretchers, in particular to an assembled stretcher. Background Art

[0002] A medical stretcher is a medical transport tool designed specifically for patients with limited mobility or injuries. It is usually made of high-strength materials and is portable, stable, and safe. It can help medical staff quickly and effectively transfer patients from one place to another.

[0003] In the process of rescuing a patient with a traditional stretcher, the patient needs to be placed in the stretcher and carried by the handles at both ends of the stretcher. In order to prevent the patient from suffering secondary injuries during transportation, the binding straps on the stretcher are generally tied to the human body, usually in two settings.

[0004] However, when using it, it is found that although it can ensure that the patient is protected from secondary injuries caused by shaking during transportation, the over-tightening of the binding straps will make the patient feel extremely uncomfortable during transportation, especially for critically ill patients. This discomfort will further aggravate their emotional fluctuations. In addition, in situations where the patient may fall into a coma due to a serious illness, if there is sputum or vomit in the mouth, it is very easy to cause the risk of suffocation. In traditional practices, medical staff have to follow the patient closely with a suction device and need to observe continuously, which undoubtedly greatly consumes the energy of medical staff. For this reason, we propose an assembled stretcher. Summary of the invention

[0005] A technical problem to be solved by the present application is that most conventional stretchers use binding straps, which makes it very cumbersome and time-consuming to fix the patient. At the same time, when the patient is unconscious, medical staff need to observe at all times and follow with a handheld suction device, which consumes energy.

[0006] In order to solve the above technical problems, the embodiment of the present application provides an assembled stretcher, comprising a plurality of frame beams and a plurality of hand-held rods, each of the frame beams having two hand-held rods disposed on the top, and further comprising:

[0007] A canvas, which is movably arranged between two hand-held poles, and two of which are provided;

[0008] A protective plate, which is movably arranged on the hand-held rod to prevent the patient from falling off the canvas;

[0009] An airbag plate, which is arranged on the inner side of the protective plate and is used to fit on the patient's body;

[0010] A rolling and flipping unit, which is arranged between two hand-held rods and is provided with eight of them, is used for when a patient is placed on the canvas, and the setting of the rolling and flipping unit can drive the protective plate to flip from the beam to the patient's body, so as to achieve rapid protection;

[0011] A rotating pneumatic assembly, which is arranged on the rolling and flipping unit, and is provided with six of them, and is used to inflate the inside of the airbag plate through the rotating pneumatic assembly during the flipping process of the protective plate, so as to reduce the harm to the human body during transportation after contacting the human body;

[0012] A pneumatic switching component is arranged on two adjacent hand-held rods and is used to suck out sputum and vomit in the patient's mouth when the patient is in a coma, so as to prevent the patient from suffocating.

[0013] In some embodiments, the rolling and flipping unit includes a reel between two hand-held rods, a reel is movably provided at both ends of the inner wall of the reel, the canvas is wound on the reel, a straight groove for passing the canvas is provided on the outer surface of the reel, both ends of the reel pass through the inner wall of the reel, and two fixed sleeves are provided on the outer surface of the reel passing through the reel, and the side surfaces of the protective plate are provided on the outer surfaces of the two fixed sleeves.

[0014] In some embodiments, a torsion spring is sleeved on the outer surface of the reel, one end of which is arranged on the inner wall of the reel, a fixing rod is rotatably arranged on the end surface of the reel, the other end of the fixing rod is arranged on the end surface of the hand-held rod, a transmission wheel is sleeved on the outer surface of the reel, an axle rod is movably arranged on the fixing rod, a driven wheel is arranged on the end surface of the axle rod, and the driven wheel and the transmission wheel are meshed with each other.

[0015] In some embodiments, the rotating pneumatic component includes a straight plate 2 set on the outer surface of the fixed rod, the shaft rod is movably set inside the straight plate 2, the outer surface of the fixed rod is provided with a side plate 2, the side of the side plate 2 is provided with a crankshaft 2, the other end of the crankshaft 2 is set on the end surface of the shaft rod, a connecting rod 2 is movably sleeved on the crankshaft 2, and a piston disk 2 is movably provided on the top of the connecting rod 2.

[0016] In some embodiments, an air cylinder 2 is provided on the side of the straight plate 2, the piston disk 2 is movably provided on the inner wall of the air cylinder 2, a circular groove 2 is provided on the outer surface of the air cylinder 2, a one-way valve 2 connected to the interior of the air cylinder 2 is provided on the outer surface of the air cylinder 2, a hose 2 is provided between the top of the air cylinder 2 and the side of the airbag plate, and the air cylinder 2 and the airbag plate are connected through the hose 2.

[0017] In some embodiments, the pneumatic switching assembly includes a side plate 1 arranged on a fixed rod, a straight plate 1 is arranged on the outer surface of the fixed rod, the shaft rod is movably arranged inside the straight plate 1 and close to the outer surface of the side plate 1, a hand-rubbing rod is arranged on the side of the side plate 1 away from the hand-held rod, a crankshaft 1 is arranged on the end face of the hand-rubbing rod, a connecting tube is arranged on the end face of the crankshaft 1, the shaft rod is movably arranged inside the shaft rod, a ratchet is sleeved on the outer surface of the shaft rod, a connecting rod is rotatably arranged on the end face of the connecting tube, a pawl is sleeved on the outer surface of the connecting rod, the pawl is meshed with the ratchet, and a torsion spring 2 is sleeved on the outer surface of the connecting rod, the end face of the torsion spring 2 is arranged on the connecting tube, a baffle is arranged on the end face of the connecting tube, and the side face of the baffle is tightly fitted on the side face of the pawl.

[0018] In some embodiments, a cylinder is provided on the side of the straight plate, a connecting rod is movably sleeved on the crankshaft, a piston disk is movably provided on the top of the connecting rod, the outer surface of the piston disk is movably provided on the inner wall of the cylinder, a circular groove is provided on the outer surface of the cylinder, a one-way valve is provided on the outer surface of the cylinder, a sleeve disc is provided on the top of the cylinder, and a connecting groove connected to the cylinder is provided at the bottom end of the inner wall of the sleeve disc.

[0019] In some embodiments, a rotating disk is rotatably provided inside the sleeve disk, an adsorption groove is provided on the top of the rotating disk, an inflation groove is provided on the top of the rotating disk, the adsorption groove and the inflation groove are sequentially connected with the connecting groove by rotating the rotating disk, a hose 1 is provided between the inner wall of the inflation groove and the adjacent airbag plate, the inflation groove and the airbag plate are connected by a hose 1, a placement basket is provided on the outer surface of the hand-held rod, a suction tube is provided inside the placement basket, the connecting pipe of the suction tube is connected to the adsorption groove, a suction tube is provided on the suction tube, and a telescopic part for enhancing comfort is provided between the two canvases.

[0020] In some embodiments, the telescopic member includes a fixed cylinder arranged between two rolling cylinders, a telescopic cloth is arranged between the two fixed cylinders, and the telescopic cloth is located between two canvases.

[0021] In some embodiments, a damping member is provided between the reel and the drum to slow down the speed at which the patient falls on the canvas. The damping member includes a rubber disc sleeved on the outer surface of the reel, and a sleeve is provided on the end surface of the drum. The end surface of the rubber disc is tightly fitted to the inner wall of the sleeve.

[0022] The present invention has at least the following beneficial effects:

[0023] 1. The rolling and turning unit can be started immediately when the patient lies on the canvas. At this time, the canvas acts as a driving force, pulling the rolling and turning unit to rotate flexibly, thereby driving the protective plate at the beam to turn over the patient's body, which can effectively prevent the patient from tipping over or falling during transportation, provide immediate and stable protection, save cumbersome binding steps, greatly improve rescue efficiency, and gain more precious treatment time for the patient;

[0024] 2. The rotating pneumatic assembly can convert the rotating force into inflating the airbag plate during the movement of the rolling and flipping unit, so that when the airbag plate contacts the human body, the direct force on the human body is reduced, thereby avoiding the loss of the human body during transportation;

[0025] 3. The pneumatic switching component is powerful. It can not only efficiently inflate the adjacent airbag panels, but also has the flexibility of self-switching, so that it can serve comatose patients. This component can accurately suck out the sputum and vomit in the patient's mouth, effectively preventing the risk of suffocation. At the same time, it greatly reduces the workload of medical staff. They do not need to continue to observe and manually hold the sputum suction device, so they can free up more energy and focus on the overall care and monitoring of the patient, ensuring a smoother and more efficient treatment process.

[0026] 4. The telescopic parts are located in the middle part of the human body, that is, the area near the buttocks, creating an extremely comfortable environment for the patients. They can not only fit the patient's body curve, but also greatly reduce the patient's discomfort, effectively reduce the patient's resistance, and make the entire nursing process more harmonious and smooth. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0028] Figure 2 It is a schematic diagram of the structure of the telescopic member, the canvas and the beam of the present invention;

[0029] Figure 3 It is a schematic diagram of the structure of the rolling and turning unit, the airbag plate and the protective plate of the present invention;

[0030] Figure 4 It is a schematic diagram of the exploded structure of the drum, canvas, reel and fixing rod of the present invention;

[0031] Figure 5 It is a schematic diagram of the explosion structure of the drum, canvas, reel and protective plate of the present invention;

[0032] Figure 6 It is a partial structural schematic diagram of the rolling and flipping unit and the rotating pneumatic assembly of the present invention;

[0033] Figure 7It is a schematic diagram of a partial exploded structure of the rolling and flipping unit and the rotating pneumatic assembly of the present invention;

[0034] Figure 8 It is a partial structural schematic diagram of the rolling and flipping unit and the pneumatic switching assembly of the present invention;

[0035] Fig. 9 It is a schematic diagram of the structure of the transmission wheel, shaft rod and ratchet wheel of the present invention;

[0036] Fig.10 It is a schematic diagram of the explosion structure of the shaft rod, connecting tube, ratchet, pawl and baffle of the present invention;

[0037] Fig.11 It is a structural schematic diagram of the sleeve disc, the rotating disc and the one-way valve of the present invention;

[0038] Fig.12 It is a schematic diagram of the cross-sectional structure of the sleeve disc of the present invention;

[0039] Fig.13 It is a schematic diagram of the structure of the reel and the damping member of the present invention;

[0040] Fig.14 It is a schematic diagram of the structure of the reel, the damping member and the reel of the present invention.

[0041] In the figure: 1, frame beam; 2, hand-held rod; 3, protective plate; 4, airbag plate; 5, canvas; 6, rolling and turning unit; 61, reel; 62, straight groove; 63, driving wheel; 64, fixed rod; 65, fixed sleeve; 66, reel; 67, torsion spring 1; 68, driven wheel; 69, shaft; 7, pneumatic switching assembly; 71, straight plate 1; 72, side plate 1; 73, crankshaft 1; 74, hose 1; 75, air cylinder 1; 76, hand rubbing rod; 77, placement basket; 78, suction tube; 79, suction tube; 710, connecting tube; 711, ratchet; 712, ratchet; 713, connecting rod; 7 14. Torsion spring two; 715. Baffle; 716. Piston disc one; 717. Circular groove one; 718. One-way valve one; 719. Rotating disc; 720. Adsorption groove; 721. Inflating groove; 722. Sleeve disc; 723. Connecting groove; 724. Connecting rod one; 8. Telescopic member; 81. Fixed cylinder; 82. Telescopic cloth; 9. Rotating pneumatic assembly; 91. Straight plate two; 92. Side plate two; 93. Crankshaft two; 94. Hose two; 95. Air cylinder two; 96. Two-way valves; 97. Circular groove two; 98. Connecting rod two; 99. Piston disc two; 10. Damping member; 101. Rubber disc; 102. Sleeve. DETAILED DESCRIPTION

[0042] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0043] Example 1: Please refer to Figure 1-12 The present invention provides a technical solution: an assembled stretcher, comprising a plurality of frame beams 1 and a plurality of hand-held rods 2, wherein two hand-held rods 2 are arranged on the top of each frame beam 1, and further comprising:

[0044] A canvas 5, which is movably arranged between the two hand-held rods 2, and two canvases 5 are arranged. The canvas 5 is made of high-strength material and can be used multiple times;

[0045] A protective plate 3, which is movably arranged on the hand-held rod 2 to prevent the patient from falling off the canvas 5. The protective plate 3 is arranged in an arc shape, and a plurality of heat dissipation grooves are provided on the outer surface;

[0046] The airbag plate 4 is arranged on the inner side of the protective plate 3 to fit on the patient's body. The airbag plate 4 can reduce the damage to the human body during transportation;

[0047] The rolling and flipping units 6 are arranged between the two hand-held rods 2, and eight of them are arranged. When the patient is placed on the canvas 5, the protective plate 3 can be driven to flip from the beam 1 to the patient's body through the arrangement of the rolling and flipping units 6, so as to achieve rapid protection;

[0048] The rotating pneumatic assembly 9 is arranged on the rolling and flipping unit 6, and six of them are arranged, and are used to inflate the inside of the airbag plate 4 through the rotating pneumatic assembly 9 during the flipping process of the protective plate 3, so as to reduce the damage to the human body during transportation after contacting the human body;

[0049] The pneumatic switching assembly 7 is arranged on two adjacent hand-held rods 2. When the patient is in a coma, the pneumatic switching assembly 7 can be used to suck out the sputum and vomit in the patient's mouth to prevent the patient from suffocating.

[0050] The rolling and flipping unit 6 includes a reel 61 between two hand-held rods 2, and reels 66 are movably provided at both ends of the inner wall of the reel 61. The canvas 5 is wound on the reel 66. A straight groove 62 for passing the canvas 5 is opened on the outer surface of the reel 61. Both ends of the reel 66 pass through the inner wall of the reel 61, and two fixed sleeves 65 are provided on the outer surface of the reel 66 passing through the reel 61. The side of the protective plate 3 is set on the outer surface of the two fixed sleeves 65. The canvas 5 is wound on the reel 66 like a reel. When in use, the canvas 5 is pressed down by the weight of the human body to extend.

[0051] The outer surface of the reel 66 is sleeved with a torsion spring 67, one end of which is arranged on the inner wall of the reel 61, a fixing rod 64 is rotatably arranged on the end surface of the reel 66, and the other end of the fixing rod 64 is arranged on the end surface of the hand-held rod 2, and the outer surface of the reel 66 is sleeved with a transmission wheel 63, and a shaft rod 69 is movably arranged on the fixing rod 64, and a driven wheel 68 is arranged on the end surface of the shaft rod 69, and the driven wheel 68 and the transmission wheel 63 are meshed with each other. The torsion spring can drive the reel 66 to reset, and the gear ratio of the meshing transmission wheel 63 and the driven wheel 68 is 1:10.

[0052] The rotary pneumatic assembly 9 includes a straight plate 91 on the outer surface of the fixed rod 64, the shaft 69 is movably arranged inside the straight plate 91, the outer surface of the fixed rod 64 is provided with a side plate 92, the side of the side plate 92 is provided with a crankshaft 93, the other end of the crankshaft 93 is provided on the end surface of the shaft 69, a connecting rod 98 is movably sleeved on the crankshaft 93, and a piston disk 99 is movably arranged on the top of the connecting rod 98. The setting of the crankshaft 93 can drive the connecting rod 98 to move, so that the connecting rod 98 drives the piston disk 99 to reciprocate.

[0053] An air cylinder 95 is provided on the side of the straight plate 91, a piston disk 99 is movably provided on the inner wall of the air cylinder 95, a circular groove 97 is provided on the outer surface of the air cylinder 95, a one-way valve 96 connected to the inside of the air cylinder 95 is provided on the outer surface of the air cylinder 95, a hose 94 is provided between the top of the air cylinder 95 and the side of the airbag plate 4, and the air cylinder 95 and the airbag plate 4 are connected through the hose 94, and the reciprocating piston disk 99 can transport the gas inside the air cylinder 95 to the adjacent airbag plate 4 through the hose 94.

[0054] The pneumatic switching assembly 7 includes a side plate 72 arranged on the fixed rod 64, a straight plate 71 is arranged on the outer surface of the fixed rod 64, a shaft 69 is movably arranged inside the straight plate 71 close to the outer surface of the side plate 72, a hand-rubbing rod 76 is arranged on the side of the side plate 72 away from the hand-held rod 2, a crankshaft 73 is arranged on the end surface of the hand-rubbing rod 76, a connecting tube 710 is arranged on the end surface of the crankshaft 73, the shaft 69 is movably arranged inside the shaft 69, a ratchet 711 is sleeved on the outer surface of the shaft 69, a connecting rod 713 is rotatably arranged on the end surface of the connecting tube 710, a ratchet 712 is sleeved on the outer surface of the connecting rod 713, the ratchet 712 is meshed with the ratchet 711, and the outer surface of the connecting rod 713 is engaged with the ratchet 711. The surface is sleeved with a torsion spring 714, the end face of which is arranged on the connecting tube 710, and the end face of the connecting tube 710 is provided with a baffle 715, the side face of the baffle 715 is tightly fitted on the side face of the pawl 712, and the ratchet 711 is rotated when the adjacent shaft rod 69 rotates, and the pawl 712 arranged on the end face of the connecting tube 710 can be stuck in the ratchet 711, so that the shaft rod 69 can drive the crankshaft to rotate, and act on the piston disk 716 inside the air cylinder 75. When the hand-rubbing rod 76 is used, the pawl 712 will not be stuck in the ratchet 711, so that the pawl 712 rotates around the connecting rod 713 and is reset under the action of the torsion spring 714.

[0055] A cylinder 75 is provided on the side of the straight plate 71, a connecting rod 724 is movably sleeved on the crankshaft 73, a piston disc 716 is movably provided on the top of the connecting rod 724, the outer surface of the piston disc 716 is movably provided on the inner wall of the cylinder 75, a circular groove 717 is provided on the outer surface of the cylinder 75, a one-way valve 718 is provided on the outer surface of the cylinder 75, a sleeve disc 722 is provided on the top of the cylinder 75, and a connecting groove 723 connected to the cylinder 75 is provided at the bottom end of the inner wall of the sleeve disc 722.

[0056] A rotating disk 719 is provided inside the sleeve disk 722 for rotation. An adsorption groove 720 is provided on the top of the rotating disk 719. An inflation groove 721 is provided on the top of the rotating disk 719. The adsorption groove 720 and the inflation groove 721 are connected with the connecting groove 723 in sequence by rotating the rotating disk 719. A hose 74 is provided between the inner wall of the inflation groove 721 and the adjacent airbag plate 4. The inflation groove 721 and the airbag plate 4 are connected through the hose 74. A placing basket 77 is provided on the outer surface of the hand-held rod 2. A suction tube 78 is provided inside the placing basket 77. The connecting pipe of the suction tube 78 is connected to the adsorption groove 720. A suction tube 79 is provided on the suction tube 78. A telescopic part 8 for enhancing comfort is provided between the two canvases 5. The inflation groove 721 and the adsorption groove 720 are switched by rotating the rotating disk 719, thereby switching between inflating and suctioning the adjacent airbag plate 4.

[0057] The telescopic member 8 includes a fixed cylinder 81 arranged between the two winding cylinders 61, a telescopic cloth 82 is arranged between the two fixed cylinders 81, and the telescopic cloth 82 is located between the two canvases 5. The telescopic cloth 82 can be extended or retracted according to different body weights, thereby providing a comfortable use environment for patients.

[0058] When using the device, first, the canvas 5 is flat, and the protective plate 3 is flipped and positioned at the frame beam 1. At this time, when the patient lies on the canvas 5, two medical staff members hold the hand-held rod 2, and the canvas 5 will be concave. At this time, the canvas 5 will drive the reel 66 to rotate, and the reel 66 drives the fixed sleeve 65 on the outer surface to rotate, and the fixed sleeve 65 drives the protective plate 3 to flip onto the patient's body. During the rotation of the reel 66, it will drive the transmission wheel 63 set on the end face to rotate, and the transmission wheel 63 drives the outer surface set from The driving wheel 68 rotates, and the driven wheel 68 drives the shaft rod 69 set on the end face to rotate, the shaft rod 69 drives the crankshaft 93 set on the end face to rotate, the crankshaft 93 drives the connecting rod 98 set on the shaft to move, the connecting rod 98 drives the piston disk 99 set on the top to move, the piston disk 99 moves inside the air cylinder 95, inhales air through the circular groove 97 and the one-way valve 96, and allows the gas to enter the interior of the airbag plate 4 through the hose 94 for inflation. At this time, the airbag plate 4 can be attached to the human body following the protective plate 3.

[0059] When the patient is unconscious and needs to suck out the vomit in the mouth, it is necessary to rotate the hand rubbing rod 76, which will drive the crankshaft 73 set on the end face to rotate, and the crankshaft 73 will drive the connecting rod 724 set inside to move, and the connecting rod 724 will drive the piston disk 716 set on the top to move inside the air cylinder 75, and the air cylinder 75 will allow the internal gas to enter the adsorption groove 720 through the connecting groove 723, and the vomit in the patient's mouth is sucked out through the sputum suction tube 78 and the sputum suction tube 79. At this time, it is necessary to switch it to the inflation stage, rotate the rotating disk 719, and drive the inflation groove 721 and the connecting groove 723 to be connected. The rotating shaft 69 moves, and the shaft 69 moves in the connecting tube 710. The shaft 69 drives the ratchet 711 connected to the outer surface to rotate, and the ratchet 711 drives the pawl 712 to move. Since the baffle 715 is stuck at the pawl 712, it drives the connecting tube 710 and the shaft 69 to rotate synchronously. The connecting tube 710 drives the crankshaft 73 to rotate, and the crankshaft 73 makes the piston disk 716 move in the air cylinder 75 through the connecting rod 724, so that the gas in the air cylinder 75 enters the inflation groove 721 through the connecting groove 723, and the gas in the inflation groove 721 enters the adjacent airbag plate 4 through the hose 74.

[0060] Example 2: Please refer to Fig.13 and 14The present invention provides a technical solution: a damping member 10 is arranged between the reel 66 and the drum 61, which is used to slow down the speed of the patient falling on the canvas 5. The damping member 10 includes a rubber disc 101 sleeved on the outer surface of the reel 66, and a sleeve 102 is arranged on the end surface of the drum 61. The end surface of the rubber disc 101 is tightly fitted with the inner wall of the sleeve 102. The rotating reel 66 will drive the rubber disc 101 to rotate, and the rubber disc 101 is tightly fitted in the sleeve 102, which can reduce the speed of the rotating reel 66, thereby avoiding the situation where the canvas 5 is quickly concave when the patient is in use.

[0061] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0062] While the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that many changes, modifications, substitutions and variations can be made to the embodiments without departing from the principles and spirit of the invention.

Claims

1. An assembled stretcher, comprising a plurality of frame beams (1) and a plurality of hand-held rods (2), wherein two hand-held rods (2) are arranged on the top of each frame beam (1), characterized in that: Also included are: A canvas (5), wherein the canvas (5) is movably arranged between the two hand-held rods (2), and two canvases (5) are arranged; A protective plate (3), the protective plate (3) being movably arranged on the hand-held rod (2) to prevent the patient from falling off the canvas (5); An airbag plate (4), the airbag plate (4) being arranged on the inner side of the protective plate (3) and being adapted to fit on the patient's body; A rolling and flipping unit (6), wherein the rolling and flipping unit (6) is arranged between the two hand-held rods (2), and eight of the rolling and flipping units (6) are arranged, and when a patient is placed on the canvas (5), the rolling and flipping unit (6) can drive the protective plate (3) to flip from the frame beam (1) to the patient's body, thereby achieving rapid protection; A rotating pneumatic assembly (9), the rotating pneumatic assembly (9) being arranged on the rolling and flipping unit (6), and being provided with six of them, and being used for inflating the interior of the airbag plate (4) through the rotating pneumatic assembly (9) during the flipping process of the protective plate (3), so as to reduce the damage to the human body when it contacts the human body during transportation; A pneumatic switching assembly (7) is arranged on two adjacent hand-held rods (2) and is used to suck out sputum and vomitus in the patient's mouth when the patient is in a coma, thereby preventing the patient from suffocating.

2. The assembled stretcher according to claim 1, characterized in that: The rolling and flipping unit (6) comprises a reel (61) between two hand-held rods (2), reels (66) are movably provided at both ends of the inner wall of the reel (61), the canvas (5) is wound around the reel (66), a straight groove (62) for passing the canvas (5) is provided on the outer surface of the reel (61), both ends of the reel (66) pass through the inner wall of the reel (61), and two fixing sleeves (65) are provided on the outer surface of the reel (66) passing through the reel (61), and the side surfaces of the protective plate (3) are provided on the outer surfaces of the two fixing sleeves (65).

3. The assembled stretcher according to claim 2, characterized in that: The outer surface of the reel (66) is sleeved with a torsion spring (67), one end of which is arranged on the inner wall of the reel (61), a fixing rod (64) is rotatably arranged on the end surface of the reel (66), the other end of which is arranged on the end surface of the hand-held rod (2), a transmission wheel (63) is sleeved on the outer surface of the reel (66), a shaft (69) is movably arranged on the fixing rod (64), a driven wheel (68) is arranged on the end surface of the shaft (69), and the driven wheel (68) and the transmission wheel (63) are meshed with each other.

4. The assembled stretcher according to claim 3, characterized in that: The rotary pneumatic assembly (9) comprises a straight plate (91) provided on the outer surface of a fixed rod (64); the shaft rod (69) is movably provided inside the straight plate (91); a side plate (92) is provided on the outer surface of the fixed rod (64); a crankshaft (93) is provided on the side surface of the side plate (92); the other end of the crankshaft (93) is provided on the end surface of the shaft rod (69); a connecting rod (98) is movably sleeved on the crankshaft (93); a piston disc (99) is movably provided on the top of the connecting rod (98).

5. The assembled stretcher according to claim 4, characterized in that: The side of the straight plate (91) is provided with a gas cylinder (95), the piston plate (99) is movably arranged on the inner wall of the gas cylinder (95), the outer surface of the gas cylinder (95) is provided with a circular groove (97), the outer surface of the gas cylinder (95) is provided with a one-way valve (96) connected to the inside of the gas cylinder (95), a hose (94) is arranged between the top of the gas cylinder (95) and the side of the airbag plate (4), and the gas cylinder (95) and the airbag plate (4) are connected through the hose (94).

6. The assembled stretcher according to claim 3, characterized in that: The pneumatic switching assembly (7) includes a side plate (72) arranged on a fixed rod (64), a straight plate (71) is arranged on the outer surface of the fixed rod (64), the shaft rod (69) is movably arranged inside the straight plate (71) close to the outer surface of the side plate (72), a hand-rubbing rod (76) is arranged on the side of the side plate (72) away from the hand-held rod (2), a crankshaft (73) is arranged on the end surface of the hand-rubbing rod (76), a connecting tube (710) is arranged on the end surface of the crankshaft (73), the shaft rod (69) is movably arranged inside the shaft rod (69), and the A ratchet (711) is sleeved on the outer surface of the shaft (69); a connecting rod (713) is rotatably provided on the end surface of the connecting tube (710); a pawl (712) is sleeved on the outer surface of the connecting rod (713); the pawl (712) is meshed with the ratchet (711); a second torsion spring (714) is sleeved on the outer surface of the connecting rod (713); the end surface of the second torsion spring (714) is arranged on the connecting tube (710); a baffle (715) is arranged on the end surface of the connecting tube (710); and the side surface of the baffle (715) is tightly fitted on the side surface of the pawl (712).

7. The assembled stretcher according to claim 6, characterized in that: A cylinder (75) is arranged on the side of the straight plate (71), a connecting rod (724) is movably sleeved on the crankshaft (73), a piston disc (716) is movably arranged on the top of the connecting rod (724), the outer surface of the piston disc (716) is movably arranged on the inner wall of the cylinder (75), a circular groove (717) is provided on the outer surface of the cylinder (75), a one-way valve (718) is provided on the outer surface of the cylinder (75), a sleeve disc (722) is provided on the top of the cylinder (75), and a connecting groove (723) connected to the cylinder (75) is provided at the bottom end of the inner wall of the sleeve disc (722).

8. The assembled stretcher according to claim 7, characterized in that: The sleeve disc (722) is provided with a rotating disc (719) for rotation inside, the top of the rotating disc (719) is provided with an adsorption groove (720), the top of the rotating disc (719) is provided with an inflation groove (721), the adsorption groove (720) and the inflation groove (721) are connected to the connecting groove (723) in sequence by rotating the rotating disc (719), and a hose (74) is provided between the inner wall of the inflation groove (721) and the adjacent airbag plate (4). The inflation groove (721) and the airbag plate (4) are connected via a hose (74); a placement basket (77) is provided on the outer surface of the hand-held rod (2); a sputum suction tube (78) is provided inside the placement basket (77); a connecting pipe of the sputum suction tube (78) is connected to the adsorption groove (720); a sputum suction tube (79) is provided on the sputum suction tube (78); and a telescopic part (8) for enhancing comfort is provided between the two canvases (5).

9. The assembled stretcher according to claim 8, characterized in that: The telescopic member (8) comprises a fixed cylinder (81) arranged between two winding cylinders (61), a telescopic cloth (82) is arranged between the two fixed cylinders (81), and the telescopic cloth (82) is located between the two canvases (5).

10. The assembled stretcher according to claim 2, characterized in that: A damping member (10) is provided between the reel (66) and the drum (61) for slowing down the speed at which the patient falls on the canvas (5); the damping member (10) comprises a rubber disc (101) sleeved on the outer surface of the reel (66); a sleeve (102) is provided on the end surface of the drum (61); and the end surface of the rubber disc (101) is tightly fitted to the inner wall of the sleeve (102).

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