A limb support structure for emergency rescue.

Abstract

This invention discloses a limb support structure for emergency rescue, including a stretcher body and an infusion support mounted on the stretcher body; an arc-shaped airbag mounted on the stretcher body; by unfolding the stretcher body, a spring is reset, causing a sleeve to move and lock folding parts one and two, simultaneously causing the infusion support to deflect and open; at the same time, a linkage component controls a valve assembly to open a compressed air tank, allowing gas to fill the arc-shaped airbag, which then rapidly inflates and secures the patient's limb. The arc-shaped airbag also increases the contact area and reduces pressure, minimizing pain and preventing tearing of the skin on burned patients' legs, thus alleviating their suffering and providing good fixation.

Description

Technical Field

[0001] This invention relates to the field of medical device technology, specifically to a limb support structure for an emergency stent. Background Technology

[0002] Emergency stretchers are simple medical devices used to transport patients and the injured. Currently, most stretchers used in hospitals are foldable stretchers made of hard frames on all four sides and soft materials such as coarse canvas in the middle. When transporting patients, they are lifted on or off the stretcher. Traditional stretchers usually fix patients by securing their torso and limbs with built-in straps. However, for patients with extensive burns, most burn patients need intravenous fluids to maintain vital signs during transport. The traditional emergency stretcher has a simple structure, and its fixation method may cause secondary injury to burn patients. This is because the skin of burn patients can easily stick to the fixation straps, especially for unstable limbs, such as leg burn patients. During transport, shaking and changing beds can cause the skin of burn patients' legs to tear, increasing the patient's pain. Therefore, we propose a limb support structure for emergency stretchers. Summary of the Invention

[0003] The purpose of this invention is to provide a limb support structure for an emergency rescue support to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a limb support structure for an emergency stent, comprising a stretcher body and an infusion stent, wherein the infusion stent is disposed on the stretcher body;

[0005] An arc-shaped airbag is mounted on the main body of the stretcher;

[0006] A compressed air tank is mounted on the stretcher body and is connected to the arc-shaped air bag via a conduit.

[0007] A valve assembly, which is disposed on and seals the compressed gas tank;

[0008] A linkage component, mounted on the stretcher body, deflects and opens the infusion stand, and uses the linkage component to open the valve assembly, causing the arc-shaped airbag to inflate and fix the patient's limb. Unlike existing technologies, in actual use, by unfolding the stretcher body, spring one resets, causing the sleeve to move and lock folding parts one and two. Simultaneously, the infusion stand deflects and opens, and the linkage component controls the valve assembly to open the compressed air tank, allowing gas to fill the arc-shaped airbag. This causes the arc-shaped airbag to inflate rapidly, thus wrapping and fixing the patient's limb. The arc-shaped airbag also increases the contact area and reduces pressure, minimizing pain stimulation for the patient and preventing tearing of the skin on burned patients' legs, thus alleviating patient suffering and providing excellent fixation.

[0009] Preferably, the stretcher body includes a first folding part and a second folding part, the arc-shaped airbag is connected to the first folding part, and the infusion stand is connected to the second folding part;

[0010] A connecting rod is provided between the first fold and the second fold, and the two ends of the connecting rod rotate relative to the first fold and the second fold respectively. The second fold is provided with a locking component, which deflects and opens the first fold and the second fold and locks them using the locking component.

[0011] Preferably, the locking assembly includes a sleeve disposed on the second folding part, the second folding part having a first sliding groove, and a sliding rod disposed inside the sleeve, the sliding rod passing through the first sliding groove, moving the sleeve to simultaneously engage the first folding part and the second folding part;

[0012] A round rod is provided on the slide rod, and a partition is provided inside the second folding part. One end of the round rod passes through the partition, and a spring is sleeved on the round rod with its two ends respectively contacting and abutting the slide rod and the partition. Moving the sleeve unlocks the first folding part, and at the same time, the spring is compressed by force to provide its self-recovery capability.

[0013] Preferably, the valve assembly includes an air guide groove formed at one end of the compressed air tank. The air guide groove is connected to the arc-shaped air bladder via a conduit. A sealing plate is provided inside the compressed air tank. One end of the sealing plate is located in the air guide groove to seal the compressed air tank. A push rod is provided on one side of the sealing plate, with one end passing through the compressed air tank. A second spring is provided on the push rod, with one end contacting and abutting against the outer wall of the compressed air tank. Moving the push rod causes the sealing plate to move and connect. At the same time, the second spring is compressed and contracts to provide its self-recovery capability.

[0014] Preferably, the linkage component includes a shaft one disposed at the bottom end of the infusion stand, the shaft one passing through the folding part two, and a trapezoidal block disposed on the shaft one, and one side of the trapezoidal block adopts an arc surface design, which deflects the infusion stand and drives the trapezoidal block to push the top rod to move.

[0015] Preferably, the infusion stand adopts a telescopic design, and a hook is provided at one end of the infusion stand. A locking rod is provided on the hook, and a shaft is provided at one end of the locking rod. One end of the shaft passes through the hook, and a torsion spring is sleeved on the shaft. The locking rod is deflected to open the hook, and the torsion spring is subjected to force to provide it with self-recovery capability.

[0016] The arc-shaped airbag is provided with an elastic strap, which is used to fix the arc-shaped airbag.

[0017] Preferably, a toothed disc is provided on the shaft, and the trapezoidal block is connected to the toothed disc. A rack is provided at one end of the round rod. Moving the rack meshes with the toothed disc and drives it to rotate, so as to retract the infusion support.

[0018] Preferably, a limiting hole is provided on the shaft, and a positioning rod is provided on one side of the shaft. The positioning rod is connected to the round rod. Moving the sleeve causes the infusion support to unfold, and at the same time, it causes the positioning rod to move and insert into the limiting hole to lock the infusion support.

[0019] Preferably, a rotating cylinder is provided on the shaft, and the trapezoidal block is connected to the rotating cylinder. A limit rod is provided at one end of the round rod, and a positioning hole is provided on the rotating cylinder. One end of the limit rod is located in the positioning hole to lock the infusion support. The sleeve is moved to unlock the infusion support.

[0020] Preferably, a limiting protrusion is provided on the first shaft, a limiting block is provided inside the folded part, and a limiting ring is threadedly connected to the second folded part. The limiting ring is provided with a plurality of blocking rods. Rotating the limiting ring causes the blocking rods to cooperate with the limiting block to limit the infusion bracket.

[0021] This invention has at least the following beneficial effects:

[0022] Unlike existing technologies, in actual use, by unfolding the main body of the stretcher, the spring returns to its original position, causing the sleeve to move and lock the first and second folding parts. Simultaneously, the infusion stand is deflected and opened. At the same time, the linkage component controls the valve assembly to open the compressed air tank, allowing gas to fill the arc-shaped airbag. This causes the arc-shaped airbag to inflate rapidly, thereby wrapping and fixing the patient's limb. The arc-shaped airbag can increase the contact area and reduce pressure, reducing pain stimulation for the patient and preventing the skin of burned patients from tearing, thus alleviating the patient's pain and providing good fixation. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of Embodiment 1 of the present invention;

[0024] Figure 2 For the present invention Figure 1 Another directional structural diagram;

[0025] Figure 3 For the present invention Figure 2 Schematic diagram of the structure of area A in the middle;

[0026] Figure 4 For the present invention Figure 2 Schematic diagram of partial cross-section;

[0027] Figure 5 For the present invention Figure 4 Schematic diagram of the structure of Zone B;

[0028] Figure 6 For the present invention Figure 4 Schematic diagram of partial cross-section;

[0029] Figure 7 For the present invention Figure 6 Schematic diagram of the structure of the middle C area;

[0030] Figure 8 For the present invention Figure 6 Schematic diagram of partial cross-section;

[0031] Figure 9 For the present invention Figure 8 Schematic diagram of the structure of the middle D area;

[0032] Figure 10 For the present invention Figure 8 Schematic diagram of partial cross-section;

[0033] Figure 11 For the present invention Figure 10 Schematic diagram of the structure of Zone E in the middle;

[0034] Figure 12 This is a schematic diagram of the overall structure of Embodiment 2 of the present invention;

[0035] Figure 13 For the present invention Figure 12 Schematic diagram of the structure of the middle F zone;

[0036] Figure 14 For the present invention Figure 12 Schematic diagram of partial cross-section;

[0037] Figure 15 For the present invention Figure 14 Schematic diagram of the structure of the G-zone.

[0038] In the diagram: 1-Stretcher body; 2-Infusion support; 3-Arc-shaped airbag; 4-Compressed air tank; 5-Valve assembly; 6-Linkage assembly; 11-Folding part one; 12-Folding part two; 13-Connecting rod; 14-Locking assembly; 15-Sleeve; 16-Slide groove one; 17-Slide rod; 18-Round rod; 19-Partition plate; 21-Spring one; 51-Air guide groove; 52-Sealing plate; 53-Top rod; 54-Spring two; 61-Shaft one; 62-Trapezoidal block; 63-Hook; 64-Locking rod; 65-Shaft two; 66-Torsion spring; 67-Gear disc; 68-Rack; 69-Limiting hole; 71-Positioning rod; 72-Rotating cylinder; 73-Limiting rod; 74-Positioning hole; 75-Limiting protrusion; 76-Limiting block; 77-Limiting ring; 78-Blocking rod; 79-Elastic strap. Detailed Implementation

[0039] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0040] Example 1

[0041] Please see Figure 1-11 The present invention provides a technical solution: a limb support structure for emergency stents, including a stretcher body 1 and an infusion stent 2, wherein the infusion stent 2 is disposed on the stretcher body 1 for hanging an infusion bottle;

[0042] The arc-shaped airbag 3 is installed on the stretcher body 1. When the stretcher body 1 is in the folded storage state, the arc-shaped airbag 3 is not inflated and is also in the storage state, thereby reducing the size of the device.

[0043] Compressed air tank 4 is installed on the stretcher body 1 and is connected to the arc-shaped air bag 3 through a conduit.

[0044] Valve assembly 5 is installed on compressed air tank 4 and seals it. In the storage state, valve assembly 5 is used to seal the compressed air tank 4 and the arc-shaped air bag 3, preventing them from communicating.

[0045] Linkage component 6, mounted on the stretcher body 1, deflects and opens the infusion stand 2, and uses linkage component 6 to drive the valve assembly 5 to open, causing the arc-shaped airbag 3 to inflate and fix the patient's limb. Thus, when encountering a burn patient requiring emergency treatment, the infusion stand 2 can be extended by deflection to fix the infusion bottle, thereby allowing the patient to receive intravenous fluids. At the same time, linkage component 6 drives valve assembly 5 to open the compressed air tank 4, allowing gas to fill the arc-shaped airbag 3, which then rapidly inflates and wraps around and fixes the patient's limb. The arc-shaped airbag 3 can also increase the contact area and reduce pressure, reducing pain stimulation for the patient, while preventing the skin of the burn patient's leg from tearing, alleviating the patient's pain, and providing good fixation.

[0046] The main body of the stretcher 1 includes a first folding part 11 and a second folding part 12. The arc-shaped airbag 3 is fixedly connected to the first folding part 11, and the infusion stand 2 is connected to the second folding part 12.

[0047] A connecting rod 13 is provided between folding part 11 and folding part 2 12. The two ends of the connecting rod 13 are rotatably connected to folding part 11 and folding part 2 12 respectively via pivots. The two ends of the connecting rod 13 rotate relative to folding part 11 and folding part 2 12 respectively. A locking component 14 is provided on folding part 2 12. Folding part 11 and folding part 2 12 are deflected and opened and locked by locking component 14, so that the main body of the device can be quickly unfolded and fixed securely.

[0048] The locking assembly 14 includes a sleeve 15 slidably connected to the second folding part 12. The second folding part 12 has a first groove 16, and a slide rod 17 is fixedly connected to the inner wall of the sleeve 15. The slide rod 17 slides through the first groove 16. Moving the sleeve 15 simultaneously engages the first folding part 11 and the second folding part 12, thereby fixing the first folding part 11 and the second folding part 12 and forming the stretcher body 1.

[0049] A round rod 18 is fixedly connected to the slide rod 17, and a partition 19 is fixedly connected to the inner wall of the second folding part 12. One end of the round rod 18 slides through the partition 19. A spring 21 is sleeved on the round rod 18, with its two ends respectively contacting and abutting the slide rod 17 and the partition 19. In the initial state of the spring 21, the two ends of the sleeve 15 are respectively sleeved and fixed to the first folding part 11 and the second folding part 12. Moving the sleeve 15 unlocks the first folding part 11 and the second folding part 12. At the same time, the spring 21 is compressed under force to provide its self-recovery capability.

[0050] The valve assembly 5 includes an air guide groove 51 opened at one end of the compressed air tank 4. The air guide groove 51 is connected to the arc-shaped air bag 3 through a conduit. A sealing plate 52 is provided inside the compressed air tank 4. One end of the sealing plate 52 is located in the air guide groove 51 to seal the compressed air tank 4. A push rod 53 is fixedly connected to one side of the sealing plate 52, with one end sliding through the compressed air tank 4. A spring 54 is fixedly connected to the push rod 53, with one end contacting and abutting against the outer wall of the compressed air tank 4. In the initial state of the spring 54, the sealing plate 52 closes the air guide groove 51. Moving the push rod 53 causes the sealing plate 52 to move and open. At the same time, the spring 54 is compressed and contracts to provide its self-recovery capability.

[0051] The linkage component 6 includes a shaft 61 fixedly connected to the bottom end of the infusion support 2. One end of the shaft 61 passes through the folding part 12 and is rotatably connected to it via a bearing. A trapezoidal block 62 is provided on the shaft 61, and one side of the trapezoidal block 62 adopts an arc surface design. The deflection of the infusion support 2 drives the shaft 61 to rotate, thereby driving the trapezoidal block 62 to rotate, and thus causing the trapezoidal block 62 to push the top rod 53 to move.

[0052] The infusion stand 2 adopts a telescopic design, and a hook 63 is fixedly connected to the top of the infusion stand 2. A locking rod 64 is provided on the hook 63. A shaft 65 is fixedly connected to one end of the locking rod 64. One end of the shaft 65 passes through the hook 63 and is rotatably connected to it through a bearing. A torsion spring 66 is sleeved on the shaft 65. When the locking rod 64 is deflected, the hook 63 is opened. At the same time, the torsion spring 66 is torsionally twisted to provide it with self-recovery capability.

[0053] An elastic strap 79 is fixedly connected to the arc-shaped airbag 3. One end of the elastic strap 79 is connected to the arc-shaped airbag 3 by Velcro. The arc-shaped airbag 3 is fixed by the elastic strap 79, and the arc-shaped airbag 3 is provided with ventilation holes for the patient's skin to breathe.

[0054] A geared disc 67 is fixedly connected to shaft 61, and a trapezoidal block 62 is fixedly connected to the geared disc 67. A rack 68 is fixedly connected to one end of the round rod 18. The moving rack 68 meshes with the geared disc 67 and drives it to rotate so that the infusion support 2 can be retracted.

[0055] A limiting hole 69 is provided on shaft 61, and a positioning rod 71 is provided on one side of shaft 61. A connecting plate is fixedly connected between the positioning rod 71 and the round rod 18. The moving sleeve 15 drives the infusion support 2 to unfold, and at the same time drives the positioning rod 71 to move and insert into the limiting hole 69 to lock the infusion support 2. When the stretcher body 1 is deflected and unfolded, the sleeve 15 is reset and moved by the spring 21, thereby driving the round rod 18 to move, which in turn drives the rack 68 to move, thereby driving the gear plate 67 to rotate, which in turn drives the shaft 61 to rotate, and then simultaneously drives the infusion support 2 to deflect and open. At the same time, the valve assembly 5 is used to open the compressed air tank 4. When the rack 68 is disengaged from the gear plate 67, the positioning rod 71 is inserted into the limiting hole 69, thereby simultaneously locking the infusion support 2. Thus, the inflation of the arc-shaped air bag 3 and the unfolding and locking of the infusion support 2 can be completed quickly and conveniently.

[0056] During the normal operation of the limb support structure of the emergency stent, unfolding the stretcher body 1 causes the spring 21 to reset, moving the sleeve 15 to lock the folding part 11 and the folding part 2 12. Simultaneously, this moves the round rod 18, which in turn moves the rack 68, causing the gear plate 67 to rotate. This, in turn, rotates the shaft 61, which in turn causes the infusion stent 2 to deflect and open. Simultaneously, the trapezoidal block 62 pushes the top rod 53, causing the sealing plate 52 to move and open, thus allowing gas to fill the arc-shaped airbag 3, thereby opening the compressed gas tank 4. The arc-shaped airbag 3 inflates rapidly, thereby wrapping and fixing the patient's limb. At the same time, the arc-shaped airbag 3 can increase the contact area and reduce pressure, thereby reducing pain stimulation for the patient and preventing tearing of the skin on the burned patient's leg, alleviating the patient's pain and providing good fixation. Thus, when the rack 68 disengages from the gear plate 67, the positioning rod 71 inserts into the limiting hole 69, thereby simultaneously locking the infusion stent 2. This allows for quick and convenient inflation of the arc-shaped airbag 3 and deployment and locking of the infusion stent 2, which is relatively fast.

[0057] Example 2

[0058] Please see Figure 2-7 as well as Figure 10-15 The present invention provides a technical solution: a limb support structure for emergency stents, including a stretcher body 1 and an infusion stent 2, wherein the infusion stent 2 is disposed on the stretcher body 1 for hanging an infusion bottle;

[0059] The arc-shaped airbag 3 is installed on the stretcher body 1. When the stretcher body 1 is in the folded storage state, the arc-shaped airbag 3 is not inflated and is also in the storage state, thereby reducing the size of the device.

[0060] Compressed air tank 4 is installed on the stretcher body 1 and is connected to the arc-shaped air bag 3 through a conduit.

[0061] Valve assembly 5 is installed on compressed air tank 4 and seals it. In the storage state, valve assembly 5 is used to seal the compressed air tank 4 and the arc-shaped air bag 3, preventing them from communicating.

[0062] Linkage component 6, mounted on the stretcher body 1, deflects and opens the infusion stand 2, and uses linkage component 6 to drive the valve assembly 5 to open, causing the arc-shaped airbag 3 to inflate and fix the patient's limb. Thus, when encountering a burn patient requiring emergency treatment, the infusion stand 2 can be extended by deflection to fix the infusion bottle, thereby allowing the patient to receive intravenous fluids. At the same time, linkage component 6 drives valve assembly 5 to open the compressed air tank 4, allowing gas to fill the arc-shaped airbag 3, which then rapidly inflates and wraps around and fixes the patient's limb. The arc-shaped airbag 3 can also increase the contact area and reduce pressure, reducing pain stimulation for the patient, while preventing the skin of the burn patient's leg from tearing, alleviating the patient's pain, and providing good fixation.

[0063] The main body of the stretcher 1 includes a first folding part 11 and a second folding part 12. The arc-shaped airbag 3 is fixedly connected to the first folding part 11, and the infusion stand 2 is connected to the second folding part 12.

[0064] A connecting rod 13 is provided between folding part 11 and folding part 2 12. The two ends of the connecting rod 13 are rotatably connected to folding part 11 and folding part 2 12 respectively via pivots. The two ends of the connecting rod 13 rotate relative to folding part 11 and folding part 2 12 respectively. A locking component 14 is provided on folding part 2 12. Folding part 11 and folding part 2 12 are deflected and opened and locked by locking component 14, so that the main body of the device can be quickly unfolded and fixed securely.

[0065] The locking assembly 14 includes a sleeve 15 slidably connected to the second folding part 12. The second folding part 12 has a first groove 16, and a slide rod 17 is fixedly connected to the inner wall of the sleeve 15. The slide rod 17 slides through the first groove 16. Moving the sleeve 15 simultaneously engages the first folding part 11 and the second folding part 12, thereby fixing the first folding part 11 and the second folding part 12 and forming the stretcher body 1.

[0066] A round rod 18 is fixedly connected to the slide rod 17, and a partition 19 is fixedly connected to the inner wall of the second folding part 12. One end of the round rod 18 slides through the partition 19. A spring 21 is sleeved on the round rod 18, with its two ends respectively contacting and abutting the slide rod 17 and the partition 19. In the initial state of the spring 21, the two ends of the sleeve 15 are respectively sleeved and fixed to the first folding part 11 and the second folding part 12. Moving the sleeve 15 unlocks the first folding part 11 and the second folding part 12. At the same time, the spring 21 is compressed under force to provide its self-recovery capability.

[0067] The valve assembly 5 includes an air guide groove 51 opened at one end of the compressed air tank 4. The air guide groove 51 is connected to the arc-shaped air bag 3 through a conduit. A sealing plate 52 is provided inside the compressed air tank 4. One end of the sealing plate 52 is located in the air guide groove 51 to seal the compressed air tank 4. A push rod 53 is fixedly connected to one side of the sealing plate 52, with one end sliding through the compressed air tank 4. A spring 54 is fixedly connected to the push rod 53, with one end contacting and abutting against the outer wall of the compressed air tank 4. In the initial state of the spring 54, the sealing plate 52 closes the air guide groove 51. Moving the push rod 53 causes the sealing plate 52 to move and open. At the same time, the spring 54 is compressed and contracts to provide its self-recovery capability.

[0068] The linkage component 6 includes a shaft 61 fixedly connected to the bottom end of the infusion support 2. One end of the shaft 61 passes through the folding part 12 and is rotatably connected to it via a bearing. A trapezoidal block 62 is provided on the shaft 61, and one side of the trapezoidal block 62 adopts an arc surface design. The deflection of the infusion support 2 drives the shaft 61 to rotate, thereby driving the trapezoidal block 62 to rotate, and thus causing the trapezoidal block 62 to push the top rod 53 to move.

[0069] The infusion stand 2 adopts a telescopic design, and a hook 63 is fixedly connected to the top of the infusion stand 2. A locking rod 64 is provided on the hook 63. A shaft 65 is fixedly connected to one end of the locking rod 64. One end of the shaft 65 passes through the hook 63 and is rotatably connected to it through a bearing. A torsion spring 66 is sleeved on the shaft 65. When the locking rod 64 is deflected, the hook 63 is opened. At the same time, the torsion spring 66 is torsionally twisted to provide it with self-recovery capability.

[0070] An elastic strap 79 is fixedly connected to the arc-shaped airbag 3. One end of the elastic strap 79 is connected to the arc-shaped airbag 3 by Velcro. The arc-shaped airbag 3 is fixed by the elastic strap 79, and the arc-shaped airbag 3 is provided with ventilation holes for the patient's skin to breathe.

[0071] A rotating cylinder 72 is fixedly connected to shaft 61, and trapezoidal block 62 is fixedly connected to the rotating cylinder 72. A limiting rod 73 is fixedly connected to one end of the round rod 18, and a positioning hole 74 is provided on the rotating cylinder 72. One end of the limiting rod 73 is located in the positioning hole 74 to lock the infusion stand 2. The sleeve 15 is moved to unlock the infusion stand 2. Then, when the stretcher body 1 is in a folded state, the sleeve 15 retracts using spring 21 and compresses spring 21. At the same time, one end of the limiting rod 73 is inserted into the positioning hole 74 of the rotating cylinder 72. The device locks the infusion stent 2 inside, preventing accidental unlocking that could cause the arc-shaped airbag 3 to inflate and open. When emergency personnel arrive at the scene and determine that the patient's legs are not burned, the arc-shaped airbag 3 is not needed to stabilize the legs. The patient can then be moved using the side without the arc-shaped airbag 3 after the stretcher body 1 is unfolded. If the infusion stent 2 is still needed for infusion, it can be deflected without triggering the valve assembly 5. This makes the device practical and improves its applicability.

[0072] A limiting protrusion 75 is fixedly connected to shaft 61, and a limiting block 76 is fixedly connected to the inner wall of the folded part. A limiting ring 77 is threadedly connected to folded part 12. Multiple blocking rods 78 are fixedly connected to the limiting ring 77. Rotating the limiting ring 77 makes the blocking rods 78 cooperate with the limiting block 76 to limit and fix the infusion bracket 2, which is relatively simple and convenient.

[0073] During the normal operation of the limb support structure of the emergency support, by unfolding the stretcher body 1, the spring 21 resets and moves the sleeve 15 to lock the folding part 11 and the folding part 2 12, while moving the round rod 18, which in turn moves the limiting rod 73 out of the positioning hole 74, and then deflects the infusion support 2 for use. At the same time, the trapezoidal block 62 pushes the top rod 53 to move the sealing plate 52 to open the compressed air tank 4, so that gas is filled into the arc-shaped air bag 3, which then quickly inflates and expands. The arc-shaped air bag 3 wraps around and fixes the patient's limb. At the same time, the arc-shaped air bag 3 can increase the contact area and reduce the pressure, reduce the patient's pain stimulation, and prevent the skin of the burned patient's leg from tearing, thus reducing the patient's pain and providing good fixation.

[0074] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus.

[0075] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A limb support structure for an emergency rescue frame, comprising a stretcher body, characterized in that: It also includes an infusion stent, which is mounted on the stretcher body; An arc-shaped airbag is mounted on the main body of the stretcher; A compressed air tank is mounted on the stretcher body and is connected to the arc-shaped air bag via a conduit. A valve assembly, which is disposed on and seals the compressed gas tank; A linkage component is provided on the stretcher body. The linkage component deflects and opens the infusion stent and drives the valve assembly to open, so that the arc-shaped airbag is inflated to limit and fix the patient's limb. The main body of the stretcher includes a first folding part and a second folding part. The arc-shaped airbag is connected to the first folding part, and the infusion stand is connected to the second folding part. A connecting rod is provided between the first fold and the second fold, and the two ends of the connecting rod rotate relative to the first fold and the second fold respectively. A locking component is provided on the second fold, which deflects and opens the first fold and the second fold and locks them using the locking component. The locking assembly includes a sleeve disposed on the second folding part, the second folding part having a first sliding groove, and a sliding rod disposed inside the sleeve, the sliding rod passing through the first sliding groove, moving the sleeve to simultaneously engage the first folding part and the second folding part; A round rod is provided on the slide rod, and a partition is provided inside the second folding part. One end of the round rod passes through the partition, and a spring is sleeved on the round rod with its two ends respectively contacting and abutting the slide rod and the partition. Moving the sleeve unlocks the first folding part, and at the same time, the spring is compressed under force to provide it with self-recovery capability. The valve assembly includes an air guide groove formed at one end of the compressed air tank. The air guide groove is connected to the arc-shaped air bag through a conduit. A sealing plate is provided inside the compressed air tank. One end of the sealing plate is located in the air guide groove to seal the compressed air tank. A push rod is provided on one side of the sealing plate, with one end passing through the compressed air tank. A second spring is provided on the push rod, with one end contacting and abutting against the outer wall of the compressed air tank. Moving the push rod causes the sealing plate to move and open. At the same time, the second spring is compressed and contracts to provide self-recovery capability. The linkage component includes a shaft 1 disposed at the bottom end of the infusion stand, the shaft 1 passing through the folding part 2, and a trapezoidal block disposed on the shaft 1, and one side of the trapezoidal block adopts an arc surface design, which deflects the infusion stand and drives the trapezoidal block to push the top rod to move. A toothed disc is provided on the shaft, and the trapezoidal block is connected to the toothed disc. A rack is provided at one end of the round rod. Moving the rack meshes with the toothed disc and drives it to rotate, so as to retract the infusion support.

2. The limb support structure of an emergency rescue support according to claim 1, characterized in that: The infusion stand adopts a telescopic design, and a hook is provided at one end of the infusion stand. A locking rod is provided on the hook. A shaft is provided at one end of the locking rod. One end of the shaft passes through the hook, and a torsion spring is sleeved on the shaft. The locking rod is deflected to open the hook, and the torsion spring is torsionally stressed to provide it with self-recovery capability. The arc-shaped airbag is provided with an elastic strap, which is used to fix the arc-shaped airbag.

3. The limb support structure of an emergency rescue support according to claim 1, characterized in that: A limiting hole is provided on the shaft, and a positioning rod is provided on one side of the shaft. The positioning rod is connected to the round rod. Moving the sleeve causes the infusion support to unfold, and at the same time, it causes the positioning rod to move and insert into the limiting hole to lock the infusion support.

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