An assembled stretcher

Abstract

The present invention relates to the technical field of medical stretchers, and specifically to an assembled stretcher, comprising a plurality of frame beams and a plurality of hand-held poles, wherein a canvas is movably arranged between the two hand-held poles, a protective plate is movably arranged on the hand-held poles to prevent the patient from falling off the canvas, and an airbag plate is arranged on the inner side of the protective plate. This assembled stretcher can start operation immediately when the patient lies on the canvas through the provided rolling and flipping unit. At this time, the canvas acts as a driving force, pulling the rolling and flipping unit to rotate flexibly, thereby driving the protective plate at the frame beam to flip over the patient's body, eliminating tedious binding steps, greatly improving rescue efficiency, and gaining more precious treatment time for the patient. The provided rotating pneumatic component can convert the rotating force into inflation of the airbag plate during the movement of the rolling and flipping unit, and also greatly reduces the patient's discomfort, making the entire nursing process more harmonious and smooth.

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 transfer patients from one place to another quickly and efficiently.

[0003] In the process of rescuing patients with traditional stretchers, 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 straps on the stretcher are generally tied to the human body, usually in two settings.

[0004] However, during use, it was found that although the straps could protect the patient from secondary injuries caused by shaking during transportation, over-tightening of the straps would make the patient feel extremely uncomfortable during transportation, especially for critically ill patients. This discomfort would further aggravate their emotional fluctuations. Moreover, 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 in hand and need to observe continuously, which undoubtedly greatly consumes the energy of the medical staff. For this reason, we propose an assembled stretcher. Summary of the Invention

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

[0006] To solve the above technical problems, an embodiment of the present application provides an assembled stretcher, comprising a plurality of frame beams and a plurality of hand-held poles, wherein two hand-held poles are provided on the top of each frame beam, and further comprising:

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

[0008] A protective plate movably mounted on the handheld pole 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 adapted to fit the patient's body;

[0010] The rolling and flipping units are arranged between the two hand-held rods, and there are eight of them. When the patient is placed on the canvas, the rolling and flipping units can drive the protective plate to flip from the beam to the patient's body through the setting of the rolling and flipping units, so as to achieve rapid protection;

[0011] A rotating pneumatic assembly is provided on the rolling and flipping unit, and six of the rotating pneumatic assemblies are provided. When the protective plate is flipped, the rotating pneumatic assembly can inflate the interior of the airbag plate through the rotating pneumatic assembly, so as to reduce the damage to the human body during transportation after contacting the human body;

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

[0013] In some embodiments, the rolling and flipping unit includes a reel between two hand-held rods, and reels are movably provided at both ends of the inner wall of the reel. The canvas is wound on the reel, and 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, the outer surface of the reel is sleeved with a torsion spring 1, one end of the torsion spring 1 is arranged on the inner wall of the reel, the end surface of the reel is rotatably provided with a fixed rod, the other end of the fixed rod is arranged on the end surface of the hand-held rod, the outer surface of the reel is sleeved with a transmission wheel, the fixed rod is movably provided with an axis rod, the end surface of the axis rod is provided with a driven wheel, and the driven wheel and the transmission wheel are engaged with each other.

[0015] In some embodiments, the rotary pneumatic component includes a straight plate 2 provided on the outer surface of the fixed rod, the shaft rod is movably provided 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 provided 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 provided 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 provided on the outer surface of the fixed rod, the shaft rod is movably arranged inside the straight plate 1 close to the outer surface of the side plate 1, a hand-rubbing rod is provided on the side of the side plate 1 away from the hand-held rod, a crankshaft 1 is provided on the end face of the hand-rubbing rod, a connecting tube is provided 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 provided 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, a torsion spring 2 is sleeved on the outer surface of the connecting rod, the end face of the torsion spring 2 is provided on the connecting tube, a baffle is provided on the end face of the connecting tube, and the side face of the baffle is tightly fitted to the side face of the pawl.

[0018] In some embodiments, an air 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 air cylinder, a circular groove is provided on the outer surface of the air cylinder, a one-way valve is provided on the outer surface of the air cylinder, a sleeve is provided on the top of the air cylinder, and a connecting groove connected to the air cylinder is provided at the bottom end of the inner wall of the sleeve.

[0019] In some embodiments, a rotating disk is provided inside the sleeve for rotation, 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 connected with the connecting groove in sequence 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 through the 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 of the patient falling 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 face of the drum. The end face 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 activated 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 flip over the patient's body. This can effectively prevent the patient from tipping over or falling during transportation, providing immediate and stable protection, eliminating the tedious tying steps, greatly improving rescue efficiency, and gaining more precious treatment time for the patient;

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

[0025] 3. The pneumatic switching assembly is powerful. It can not only efficiently inflate adjacent airbag panels, but also has the flexibility of self-switching, making it suitable for serving comatose patients. This assembly can accurately aspirate sputum and vomitus from the patient's mouth, effectively preventing the risk of suffocation. At the same time, it greatly reduces the workload of medical staff. They no longer need to constantly observe and manually hold the suction device, freeing up more energy to 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 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 This is a schematic structural diagram of the telescopic member, canvas, and beam of the present invention;

[0029] Figure 3 This is a schematic structural diagram of the rolling and flipping 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 diagram of the rolling and flipping unit and the rotating pneumatic assembly of the present invention;

[0033] Figure 7A schematic diagram of a partially 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 diagram of the rolling and flipping unit and the pneumatic switching assembly of the present invention;

[0035] Figure 9 It is a schematic structural diagram of the transmission wheel, shaft and ratchet of the present invention;

[0036] Figure 10 Schematic diagram of the exploded structure of the shaft, connecting cylinder, ratchet, pawl and baffle of the present invention;

[0037] Figure 11 This is a structural diagram of the sleeve disc, rotating disc and one-way valve of the present invention;

[0038] Figure 12 Schematic diagram of the cross-sectional structure of the sleeve disc of the present invention;

[0039] Figure 13 Schematic diagram of the structure of the drum and the damping element of the present invention;

[0040] Figure 14 It is a schematic structural diagram of the reel, damping element and 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, pawl; 713, connecting rod; 7 14. Torsion spring 2; 715. Baffle; 716. Piston disc 1; 717. Circular groove 1; 718. One-way valve 1; 719. Rotating disc; 720. Adsorption groove; 721. Inflating groove; 722. Sleeve disc; 723. Connecting groove; 724. Connecting rod 1; 8. Telescopic part; 81. Fixed cylinder; 82. Telescopic cloth; 9. Rotary pneumatic component; 91. Straight plate 2; 92. Side plate 2; 93. Crankshaft 2; 94. Hose 2; 95. Air cylinder 2; 96. One-way valve 2; 97. Circular groove 2; 98. Connecting rod 2; 99. Piston disc 2; 10. Damping part; 101. Rubber disc; 102. Sleeve. DETAILED DESCRIPTION

[0042] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. 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 making creative efforts 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 poles 2, wherein two hand-held poles 2 are provided on the top of each frame beam 1, and further comprising:

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

[0045] The protective plate 3 is movably arranged on the handheld rod 2 to prevent the patient from falling off the canvas 5. The protective plate 3 is arranged in an arc shape and has a plurality of heat dissipation grooves on its 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 there are eight of them. When the patient is placed on the canvas 5, the rolling and flipping units 6 can drive the protective plate 3 to flip from the frame beam 1 to the patient's body, thereby achieving rapid protection.

[0048] The rotating pneumatic assembly 9 is provided on the rolling and flipping unit 6, and six of them are provided. When the protective plate 3 is flipped, the internal space of the airbag plate 4 can be inflated by the rotating pneumatic assembly 9, so as to reduce the damage to the human body during transportation after contacting the human body.

[0049] The pneumatic switching component 7 is arranged on two adjacent hand-held rods 2. When the patient is in a coma, the pneumatic switching component 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. The outer surface of the reel 61 is provided with a straight groove 62 for passing the canvas 5. Both ends of the reel 66 pass through the inner wall of the reel 61, and the reel 66 passes through the outer surface of the reel 61 and is sleeved with two fixed sleeves 65. The side of the protective plate 3 is provided 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.

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

[0052] The rotary pneumatic assembly 9 includes a straight plate 91 provided on the outer surface of the fixed rod 64, the shaft 69 is movably provided 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 provided 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 295 is provided on the side of the straight plate 291, and a piston disk 299 is movably provided on the inner wall of the air cylinder 295. A circular groove 297 is provided on the outer surface of the air cylinder 295, and a one-way valve 296 connected to the interior of the air cylinder 295 is provided on the outer surface of the air cylinder 295. A hose 294 is provided between the top of the air cylinder 295 and the side of the airbag plate 4, and the air cylinder 295 and the airbag plate 4 are connected through the provided hose 294. The reciprocating piston disk 299 can transport the gas inside the air cylinder 295 to the adjacent airbag plate 4 through the hose 294.

[0054] The pneumatic switching assembly 7 includes a side plate 72 arranged on the fixed rod 64, a straight plate 71 is provided 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 provided on the side of the side plate 72 away from the hand-held rod 2, a crankshaft 73 is provided on the end surface of the hand-rubbing rod 76, a connecting tube 710 is provided 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 provided 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 2 714, the end face of the torsion spring 2 714 is set on the connecting tube 710, and the end face of the connecting tube 710 is set with a baffle 715, the side of the baffle 715 is tightly fitted on the side of the pawl 712, and the ratchet 711 is rotated when the adjacent shaft 69 rotates, and the pawl 712 set on the end face of the connecting tube 710 can be stuck in the ratchet 711, so that the shaft 69 can drive the crankshaft to rotate, and act on the piston disk 1 716 inside the air cylinder 1 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 2 714.

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

[0056] The inner part of the sleeve 722 is provided with a rotating disk 719, the top of the rotating disk 719 is provided with an adsorption groove 720, and the top of the rotating disk 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 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. The outer surface of the handheld rod 2 is provided with a placement basket 77, and a suction tube 78 is provided inside the placement basket 77. The connecting pipe of the suction tube 78 is connected to the adsorption groove 720, and 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 the adjacent airbag plate 4 and suctioning.

[0057] The telescopic member 8 includes a fixed cylinder 81 arranged between the two rollers 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 this 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, both medical staff 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 will drive the fixed sleeve 65 set on the outer surface to rotate, and the fixed sleeve 65 will drive 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 will drive 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, and the shaft rod 69 drives the crankshaft 2 93 set on the end face to rotate, and the crankshaft 2 93 drives the connecting rod 2 98 set on the shaft to move, and the connecting rod 2 98 drives the piston disk 2 99 set on the top to move, and the piston disk 2 99 moves inside the air cylinder 2 95, and inhales air through the circular groove 2 97 and the one-way valve 2 96, and the gas enters the interior of the airbag plate 4 through the hose 2 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 1 73 set on the end face to rotate, and the crankshaft 1 73 will drive the connecting rod 1 724 set inside to move, and the connecting rod 1 724 will drive the piston disk 1 716 set on the top to move inside the air cylinder 1 75, and the air cylinder 1 75 will let the internal gas enter the adsorption tank 720 through the connecting groove 723, and suck out the vomit in the patient's mouth through the suction tube 78 and the suction tube 79. At this time, it is necessary to switch it to the inflation stage, rotate the rotating disk 719, drive the inflation tank 721 and the connecting groove 723 to be connected, and when 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 Figure 13 and 14The present invention provides a technical solution: a damping member 10 is provided 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 provided on the end face of the reel 61. The end face 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 document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0062] While the embodiments of the present invention have been shown and described, it will be apparent to those skilled in the art that various changes, modifications, substitutions, and alterations 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 poles (2), wherein the top of each frame beam (1) is provided with two hand-held poles (2), 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 provided; A protective plate (3) movably arranged on the handheld 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) is provided between the two hand-held rods (2), and eight of the rolling and flipping units (6) are provided. 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 beam (1) to the patient's body, thereby achieving rapid protection. A rotating pneumatic assembly (9) is provided on the rolling and flipping unit (6), and six of the rotating pneumatic assemblies (9) are provided. When the protective plate (3) is flipped, the rotating pneumatic assembly (9) can inflate the interior of the airbag plate (4) so ​​as to reduce damage to the human body when it comes into contact with the human body during transportation. A pneumatic switching assembly (7) is provided 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. 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); The outer surface of the reel (66) is provided with a torsion spring (67), one end of which is arranged on the inner wall of the reel (61), and the end surface of the reel (66) is rotatably provided with a fixed rod (64), and the other end of the fixed rod (64) is provided on the end surface of the hand-held rod (2). The outer surface of the reel (66) is provided with a transmission wheel (63), and the fixed rod (69) is movably provided on the fixed rod (64). The end surface of the shaft (69) is provided with a driven wheel (68), and the driven wheel (68) and the transmission wheel (63) are engaged with each other.

2. The assembled stretcher according to claim 1, characterized in that: The rotary pneumatic assembly (9) includes a straight plate (91) provided on the outer surface of the fixed rod (64), the shaft (69) is movably provided inside the straight plate (91), the outer surface of the fixed rod (64) is provided with a side plate (92), the side surface 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 disc (99) is movably provided on the top of the connecting rod (98).

3. The assembled stretcher according to claim 2, characterized in that: The side of the straight plate (91) is provided with an air cylinder (95), the piston disc (99) is movably provided on the inner wall of the air cylinder (95), the outer surface of the air cylinder (95) is provided with a circular groove (97), the outer surface of the air cylinder (95) is provided with a one-way valve (96) connected to the inside 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 provided hose (94).

4. The assembled stretcher according to claim 1, 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 (69) is movably arranged inside the straight plate (71) by approaching 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), the end face of the hand-rubbing rod (76) is provided with a crankshaft (73), the end face of the crankshaft (73) is provided with a connecting tube (710), the shaft (69) is movably arranged inside the shaft (69), and the The outer surface of the shaft (69) is sleeved with a ratchet (711), the end surface of the connecting tube (710) is rotatably provided with a connecting rod (713), the outer surface of the connecting rod (713) is sleeved with a pawl (712), the pawl (712) is engaged with the ratchet (711), the outer surface of the connecting rod (713) is sleeved with a second torsion spring (714), the end surface of the second torsion spring (714) is provided on the connecting tube (710), the end surface of the connecting tube (710) is provided with a baffle (715), and the side surface of the baffle (715) is tightly fitted on the side surface of the pawl (712).

5. The assembled stretcher according to claim 4, characterized in that: 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).

6. The assembled stretcher according to claim 5, 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). 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 a hose (74). The outer surface of the hand-held rod (2) is provided with a placement basket (77). The interior of the placement basket (77) is provided with a sputum suction tube (78). The 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). A telescopic part (8) for enhancing comfort is provided between the two canvases (5).

7. The assembled stretcher according to claim 6, characterized in that: The telescopic member (8) comprises a fixed cylinder (81) arranged between two reels (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).

8. The assembled stretcher according to claim 1, 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 face of the drum (61). The end face of the rubber disc (101) is in close contact with the inner wall of the sleeve (102).

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