An emergency care transport device

Abstract

The present application belongs to the technical field of emergency nursing, in particular to an emergency nursing transfer device, comprising a plurality of inflatable cushions installed at the bottom of the bed body, an inflation mechanism arranged at the bottom of the bed body, and a plurality of air guide pipe assemblies, wherein the inflatable cushions are in communication with the inflation mechanism through the air guide pipe assemblies; the plurality of inflatable cushions and the plurality of air guide pipe assemblies are symmetrically distributed about the center of the inflation mechanism; the inflatable cushions are inflated and expanded after being inflated, so that the bed body can float on the water surface, which ensures that the patient will not sink into the water, and also facilitates medical staff to hold the bed body to walk or move the bed body through a device such as a kayak, thereby reducing the difficulty of patient transfer in a water environment; the inflatable cushions are symmetrically distributed about the center of the inflation mechanism, so that each inflatable cushion can be inflated and expanded synchronously when the inflation mechanism is working, thereby improving the expansion synchronicity of the plurality of inflatable cushions and the stability of the bed body during the inflation process.

Description

Technical Field

[0001] This invention belongs to the field of emergency nursing, specifically an emergency nursing transport device. Background Technology

[0002] In the emergency medical system, there is often a need to transport patients outside the hospital or within the hospital. In practice, transport beds with simple structures and easy movement are often used to transport emergency patients.

[0003] Traditional transport beds have a relatively simple structure, making them convenient for transporting patients on land. However, they are not suitable for certain special environments. For example, during the continuous heavy rainfall in August 2019, some roads in Shenyang were flooded to a depth of more than half a meter. Fire trucks stalled due to the deep water. When using transport beds to transfer emergency patients, the beds were submerged in water, making movement difficult and increasing the risk of tipping over. In the torrential rains of July 2021, Weihui city experienced flooding, with some areas around hospitals having water depths exceeding two meters, prohibiting the entry of bulldozers and large transport vehicles. Traditional transport beds could not float on the water and could only be used for transport by inflatable boats and rafts. This demonstrates that traditional transport beds, when used to transport patients in flooded environments, present the aforementioned problems of difficult operation and a high risk of tipping over, making them less suitable for use in such situations.

[0004] Therefore, the present invention provides an emergency nursing transport device. Summary of the Invention

[0005] In order to overcome the shortcomings of the prior art, at least one technical problem raised in the background art is solved.

[0006] The technical solution adopted by the present invention to solve its technical problem is as follows: The emergency nursing transport device of the present invention includes a bed body, the bottom end of the bed body is provided with support legs, and further includes:

[0007] Several inflatable pads installed at the bottom of the bed;

[0008] An inflation mechanism is provided at the bottom of the bed frame, the inflation mechanism being used to inflate the air mattress, and the inflation mechanism is located at the center of the bed frame; and

[0009] Several air duct assemblies, the inflatable pad being connected to the inflation mechanism through the air duct assemblies;

[0010] The inflatable pads and the air duct assemblies are symmetrically distributed about the center of the inflation mechanism.

[0011] Specifically, the outriggers are equipped with casters at the bottom. When transporting emergency patients, the patient is placed on the bed and then the bed is moved. When transporting patients in water, if the water level is too high, the inflation mechanism is activated to inflate the air cushion. After the air cushion is inflated, it expands and the bed floats on the water surface. This ensures that the patient will not sink into the water and also makes it easier for medical staff to walk while holding onto the bed or move the bed using devices such as kayaks, reducing the difficulty of transporting patients in water environments.

[0012] During rescue operations, inflation is typically performed quickly to improve transport efficiency. However, if multiple air cushions are not inflated synchronously during rapid inflation, the varying rates of expansion and deformation can cause the bed to tilt or shake violently on the water surface. This can lead to the patient swaying on the bed or even falling into the water, posing a safety hazard. In this solution, because the air cushions are symmetrically distributed about the center of the inflation mechanism, each air cushion can inflate and expand synchronously when the inflation mechanism is working. This improves the synchronization of inflation among the multiple air cushions, making the bed more stable during inflation and effectively addressing this problem.

[0013] Preferably, the inflation mechanism includes:

[0014] A fixed base is fixed to the bottom of the bed, and a first water inlet is provided on the side wall of the fixed base;

[0015] A reaction chamber is located inside the fixed base, and a second water inlet is provided on the side wall of the reaction chamber;

[0016] Support members for supporting the upward movement of the reaction chamber; and

[0017] A reaction assembly installed inside the reaction chamber for generating gas;

[0018] When the support pushes the reaction chamber upward, the first water inlet aligns with the second water inlet.

[0019] Specifically, the top of the reaction chamber is connected to the gas delivery tube assembly. The support is preferably, but not limited to, a spring located at the bottom of the reaction chamber. The reaction assembly is preferably, but not limited to, a device that reacts upon contact with water and generates gas. Of course, the reaction assembly can also be a gas generator with a sensor. When rainwater enters the reaction chamber and contacts the sensor, the gas generator is activated. When transporting patients through floodwaters in heavy rain, the water level is constantly changing. Initially, the water level is low, and it is not necessary to float the bed. However, the water level rises rapidly during the transport, and there may be situations where the bed needs to be floated midway. In this case, if medical staff perform the inflation operation, it will not only be inconvenient to operate in the water, but the operation may also affect the speed of movement of the medical staff. This can affect the transfer efficiency. In the initial state, the first and second water inlets are horizontally aligned. By designing the positions of the first and second water inlets, when the water level is too high, the water level will exceed the first water inlet and enter the reaction chamber through the second water inlet. After the water volume in the reaction chamber increases, the overall mass of the reaction chamber increases and it moves downward. At the same time, the reaction components are activated to inflate the air pad, realizing the function of automatically inflating and floating the bed according to the water level. Furthermore, after the reaction chamber moves downward, the second water inlet is offset from the first water inlet. Therefore, the second water inlet is sealed by the inner wall of the fixed seat, which improves the problem that the gas generated in the reaction chamber may escape outward through the second water inlet, affecting the inflation efficiency of the air pad.

[0020] Preferably, the reaction assembly includes:

[0021] A rotating base installed inside the reaction chamber is provided. The base is cylindrical and has two cavities inside.

[0022] The reaction powders filled into the two cavities respectively; and

[0023] A sealing membrane used to seal the opening of a cavity.

[0024] Specifically, by using a sealing membrane to protect the reaction powder, the storage time of the reaction powder is increased. The preferred, but not limited to, reaction powders in the two cavities are citric acid powder and baking soda powder. Citric acid powder and baking soda powder react violently with water, rapidly producing a large amount of carbon dioxide gas. After water accumulates inside the reaction chamber, the sealing membrane is torn open before aeration, and then the holder is rotated, causing the citric acid powder and baking soda powder inside the holder to fall into the water, thus automatically carrying out the chemical reaction and producing gas. Of course, the holder can also be located at the bottom of the reaction chamber. Before transfer, the sealing membrane is torn open. During the transfer, if the water level is too high, water enters the reaction chamber and comes into contact with the reaction powder, which can also automatically carry out aeration. In this solution, citric acid powder and baking soda powder are inexpensive, easy to purchase, and convenient to use and replace.

[0025] Preferably, it further includes a balancing mechanism, the balancing mechanism comprising:

[0026] A gas storage seat fixed inside the reaction chamber;

[0027] Several gas storage slots are evenly distributed within the gas storage base, and the gas storage slots penetrate the gas storage base vertically.

[0028] Rotate the shaft installed at the center of the gas storage base;

[0029] An upper control plate and a lower control plate are fixed to the rotating shaft, respectively used to seal the upper and lower ends of the gas storage tank; and

[0030] Several vent holes are respectively opened on the upper control plate and the lower control plate. The vent holes are adapted to the air storage tank, and the two sets of vent holes are staggered.

[0031] The reaction assembly is located below the lower control plate, and the top of the reaction chamber is provided with multiple air outlets that are respectively connected to multiple air guide pipe assemblies. The upper control plate is located below the air outlets.

[0032] Specifically, the air outlet is connected to the air guide pipe assembly via a flexible tube. In the initial state, the air vent in the lower control plate is aligned with the air storage tank, while the air vent in the upper control plate is offset from the air storage tank. During inflation, the gas produced by the chemical reaction enters the air storage tank from bottom to top. Once each air storage tank is filled with gas, the gas volume and pressure in each tank are the same. The rotating shaft is then activated, causing the air vent in the lower control plate to offset from the air storage tank and the air vent in the upper control plate to align with the air storage tank. The gas in each air storage tank then enters each inflation pad via the respective air guide pipe assembly. Since the gas volume in each air storage tank is the same, and the paths between each air storage tank and each inflation pad are the same, the inflation expansion speed of each inflation pad can be guaranteed to be consistent, further improving the stability and balance of the bed during inflation.

[0033] Preferably, the reaction components are provided in multiple sets, driving the reaction components to be evenly distributed in a ring around the circumference of the rotating shaft; the inflation mechanism further includes:

[0034] A cutter fixed to the rotating shaft cuts through multiple sets of the sealing film sequentially during the rotation of the rotating shaft.

[0035] The inclined plate fixed to the stand; and

[0036] A push plate fixed to the rotating shaft for pressing the inclined plate to move is used to drive the placement seat downward during the rotation of the rotating shaft via the push plate and the inclined plate.

[0037] Specifically, in the initial state, the cutter is located in the gap between two adjacent seats. At this time, the cutter does not contact the sealing membrane to avoid accidental contact. During inflation, the shaft is started to rotate. The cutter first cuts the sealing membrane on one of the seats. Then, the push plate contacts the inclined plate on the seat and squeezes the inclined plate and the seat to rotate, causing the reaction powder inside the seat to fall downward through the cut and carry out a chemical reaction. As the shaft continues to rotate, the cutter cuts each set of sealing membranes in sequence, and the push plate drives each seat to rotate in sequence. Therefore, multi-stage chemical reactions can be carried out. During this process, the upper and lower sets of vent holes alternately align and stagger with the gas storage tank. Finally, the gas produced by the multiple chemical reactions can enter the inflatable pad in equal batches, realizing the function of multi-stage equal-volume inflation of the inflatable pad. Even with rapid inflation, the bed can remain stable throughout the overall inflation process.

[0038] Preferably, the placement seat is provided with a return torsion spring, and the inclined plate is located outside the rotation range of the cutter.

[0039] Specifically, the bevel plate and the cutter do not come into contact with each other, thus avoiding interference between their movements.

[0040] Preferably, it further includes a drive mechanism, the drive mechanism comprising:

[0041] A spring assembly for driving the rotation of the shaft, the spring assembly having a knob; and

[0042] A limiting member is fixed inside the reaction chamber, the limiting member being used to lock the knob.

[0043] Specifically, in the initial state, the mainspring assembly is in a tightened state, and the limiting member blocks the knob to prevent the mainspring assembly from releasing energy; when inflating, the limiting member is removed, and the mainspring assembly can work and drive the shaft to rotate.

[0044] Preferably, the limiting member includes:

[0045] The card holder fixed inside the reaction chamber; and

[0046] A solid salt reservoir is provided inside the card holder, which is used to block the knob.

[0047] Specifically, the solid salt container is preferably, but not limited to, a salt block placed inside the webbing. In the initial state, the solid salt container located in the holder blocks the knob. When water enters the reaction chamber, the solid salt container melts upon contact with the water and no longer blocks the knob. Then the spring assembly can rotate, realizing the function of automatic rotation of the shaft after water enters the reaction chamber when the water level is too high. No additional auxiliary drive device is required, making it more suitable for use in water-related transportation environments.

[0048] Preferably, the limiting member further includes a protective film wrapped around the outside of the solid salt bin;

[0049] The drive mechanism also includes a pull rope, one end of which is fixed to the protective membrane, and the other end of which passes through the second water inlet and is connected to the inner wall of the fixed base.

[0050] Specifically, the protective film is preferably, but not limited to, an easily tearable plastic film. This protective film prevents the solid salt container from melting prematurely due to moisture. During transport, if the water level is too high, water enters the reaction chamber and moves downwards, causing the solid salt container to move downwards as well. The pull rope pulls on the protective film outside the solid salt container, tearing it open. Then, the solid salt container comes into contact with the water in the reaction chamber and melts. Therefore, the spring assembly will only operate when water enters the reaction chamber and the protective film is torn open. This solution extends the storage time of the solid salt container while ensuring the spring assembly is triggered normally, and avoids the situation where the solid salt container melting due to moisture will accidentally trigger the spring assembly, making it safer and more reliable.

[0051] Preferably, the inner bottom wall of the reaction chamber is provided with an upwardly protruding step, and the spring assembly and the limiting member are both located at the top of the step.

[0052] Specifically, during water transport, the bed may sway up and down. Even if the water level is not deep, splashing water may enter the reaction chamber. By setting up a boss, a small amount of water accumulates below the boss and will not trigger the spring mechanism. Only when the water level is too high and a lot of water enters the reaction chamber, and the water level in the reaction chamber exceeds the step, will the spring mechanism work, further reducing the possibility of false triggering.

[0053] The beneficial effects of this invention are as follows:

[0054] 1. The emergency nursing transport device of the present invention, by setting an inflatable cushion at the bottom of the bed, allows the bed to float on the water surface after the cushion is inflated, which ensures that the patient will not sink into the water and facilitates medical staff to walk while holding the bed or move the bed by means of a boat or other device, reducing the difficulty of patient transport in watery environments and is suitable for transport work in watery environments; the inflatable cushions are symmetrically distributed about the center of the inflation mechanism, so when the inflation mechanism is working, each inflatable cushion can inflate and expand synchronously, improving the synchronization of the expansion of multiple inflatable cushions and improving the stability of the bed during the inflation process.

[0055] 2. The emergency nursing transport device of the present invention, by setting a balancing mechanism, ensures that the gas volume and pressure in the gas storage tank are the same, and that the paths between each gas storage tank and each air pad are the same. Therefore, the inflation expansion speed of each air pad can be guaranteed to be consistent, further improving the stability and balance of the bed during the inflation process.

[0056] 3. The emergency nursing transport device of the present invention, by setting a drive mechanism and a limiting component, allows for the following operation: when the water level is too high, more water enters the reaction chamber. Once the water level in the reaction chamber exceeds the step, the solid salt container comes into contact with the water in the reaction chamber and melts, activating the spring assembly. No additional auxiliary drive device is required, making it more suitable for use in water-related transport environments. Furthermore, the spring assembly will only operate when water enters the reaction chamber and the protective film is torn open. This solution extends the storage time of the solid salt container while ensuring that the spring assembly is triggered normally, and avoids the situation where the solid salt container melts due to moisture and accidentally triggers the spring assembly, making it safer and more reliable to use.

[0057] 4. The emergency nursing transport device described in this invention uses inexpensive reaction powder that is easy to purchase and has low usage and replacement costs. Attached Figure Description

[0058] The invention will now be further described with reference to the accompanying drawings.

[0059] Figure 1 This is a perspective view of Embodiment 1 of the present invention;

[0060] Figure 2 This is a bottom view of Embodiment 1 of the present invention;

[0061] Figure 3 This is a half-sectional view of the present invention;

[0062] Figure 4 yes Figure 2 Enlarged view of a portion of point A in the middle;

[0063] Figure 5 This is a three-dimensional diagram showing the fit between the fixed base and the reaction chamber;

[0064] Figure 6 This is an exploded view of the fixed base and the reaction chamber;

[0065] Figure 7 It is a 3D diagram of the balancing mechanism;

[0066] Figure 8 This is an exploded diagram of the balancing mechanism;

[0067] Figure 9 It is a 3D diagram of the storage stand;

[0068] Figure 10 It is a 3D diagram of the storage stand and the cutting knife;

[0069] Figure 11 yes Figure 7 Enlarged view of section B in the middle. Detailed Implementation

[0070] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0071] Example 1

[0072] like Figure 1-2 As shown in the figure, an emergency nursing transport device according to an embodiment of the present invention includes a bed body 1, the bottom end of which is provided with support legs, and further includes:

[0073] Several inflatable pads 2 are installed at the bottom of the bed frame 1;

[0074] An inflation mechanism 3 is provided at the bottom of the bed frame 1, the inflation mechanism 3 is used to inflate the air mattress 2, and the inflation mechanism 3 is located at the center of the bed frame 1; and

[0075] Several air-conducting pipe assemblies 4, the air cushion 2 is connected to the inflation mechanism 3 through the air-conducting pipe assemblies 4;

[0076] Among them, several of the inflatable pads 2 and several of the air duct assemblies 4 are symmetrically distributed about the center of the inflation mechanism 3.

[0077] Specifically, the bottom of the outriggers is equipped with casters. When transporting emergency patients, the patient is placed on the bed 1 and then the bed 1 is pushed to move. When transporting patients in water, if the water level is too high, the inflation mechanism 3 is activated to inflate the air cushion 2. After the air cushion 2 is inflated, it expands and allows the bed 1 to float on the water surface. This ensures that the patient will not sink into the water and also makes it easier for medical staff to walk while holding the bed 1 or move the bed 1 by means of a kayak or other device, reducing the difficulty of transporting patients in water environments.

[0078] During rescue operations, inflation is typically performed quickly to improve transport efficiency. However, if multiple air cushions 2 are not synchronized during rapid inflation, the expansion and deformation speeds can vary significantly, potentially causing the bed 1 to tilt or shake violently on the water surface. This could result in the patient swaying on the bed 1 or even falling into the water, posing a safety hazard. In this solution, because the air cushions 2 are symmetrically distributed about the inflation mechanism 3, each air cushion 2 can inflate and expand synchronously when the inflation mechanism 3 is working. This improves the synchronization of the expansion of multiple air cushions 2, making the bed 1 more stable during inflation and effectively mitigating this problem.

[0079] like Figure 3-6 As shown, the inflation mechanism 3 includes:

[0080] A fixing seat 31 is fixed to the bottom of the bed body 1, and a first water inlet 311 is provided on the side wall of the fixing seat 31;

[0081] A reaction chamber 32 is provided inside the fixed base 31, and a second water inlet 321 is provided on the side wall of the reaction chamber 32;

[0082] Support member 33 for supporting the upward movement of the reaction chamber 32; and

[0083] A reaction assembly 34 for generating gas is installed inside the reaction chamber 32;

[0084] When the support member 33 pushes the reaction chamber 32 upward, the first water inlet 311 and the second water inlet 321 are aligned.

[0085] Specifically, the top of the reaction chamber 32 is connected to the air duct assembly 4. The support 33 is preferably, but not limited to, a spring located at the bottom of the reaction chamber 32. The reaction assembly 34 is preferably, but not limited to, a device that reacts upon contact with water and generates gas. Of course, the reaction assembly 34 can also be a gas generator with a sensor. After rainwater enters the reaction chamber 32, it contacts the sensor and activates the gas generator. When transporting patients through floodwaters in heavy rain, the water level changes constantly. Initially, the water level is low, and it is not necessary to float the bed 1. However, the water level rises rapidly during the transport, and it may be necessary to float the bed 1 midway. At this time, if medical staff perform the inflation operation, it will not only be inconvenient to operate in the water, but the operation may also affect the movement speed of the medical staff, thus affecting the transport efficiency. The first water inlet 311 and the second water inlet 321 are horizontally aligned. By designing the positions of the first water inlet 311 and the second water inlet 321, when the water level is too high, the water level will exceed the first water inlet 311 and enter the reaction chamber 32 through the second water inlet 321. After the water volume inside the reaction chamber 32 increases, the overall mass of the reaction chamber 32 increases and it moves downward. At the same time, the reaction component 34 is activated to inflate the air pad 2, realizing the function of automatically inflating and floating the bed 1 according to the water level. Furthermore, after the reaction chamber 32 moves downward, the second water inlet 321 is offset from the first water inlet 311. Therefore, the second water inlet 321 is sealed by the inner wall of the fixing seat 31, which improves the problem that the gas generated in the reaction chamber 32 may escape outward through the second water inlet 321 and affect the inflation efficiency of the air pad 2.

[0086] like Figure 3-9 As shown, the reaction assembly 34 includes:

[0087] The placement seat 341, which is rotatably installed inside the reaction chamber 32, is cylindrical and has two cavities inside.

[0088] The reaction powder 342 was filled into the two cavities respectively; and

[0089] A sealing membrane 343 for sealing the opening of a cavity.

[0090] Specifically, the reaction powder 342 is sealed and protected by a sealing membrane 343, thereby increasing the storage time of the reaction powder 342. The reaction powder 342 in the two cavities is preferably, but not limited to, citric acid powder and baking soda powder. Citric acid powder and baking soda powder react violently upon contact with water, rapidly producing a large amount of carbon dioxide gas. The specific chemical formula for the reaction is as follows:

[0091] C6H8O7+3NaHCO3=C6H5O7Na3+3H2O+3CO2;

[0092] After water accumulates inside the reaction chamber 32, the sealing film 343 is torn open before inflation. Then, the holder 341 is rotated so that the citric acid powder and baking soda powder inside the holder 341 fall into the water, and the chemical reaction can be carried out automatically to produce gas. Of course, the holder 341 can also be located at the bottom of the reaction chamber 32. Before transfer, the sealing film 343 is torn open. During the transfer, if the water level is too high, water enters the reaction chamber 32 and comes into contact with the reaction powder 342, and inflation can also be carried out automatically. In this solution, citric acid powder and baking soda powder are inexpensive, easy to purchase, and easy to use and replace.

[0093] like Figure 3-8 As shown, it also includes a balancing mechanism 5, which comprises:

[0094] Gas storage seat 51 fixed inside the reaction chamber 32;

[0095] Several gas storage slots 52 are evenly distributed in the gas storage base 51, and the gas storage slots 52 penetrate the gas storage base 51 vertically.

[0096] Rotate the shaft 53 installed at the center of the gas storage base 51;

[0097] An upper control plate 54 and a lower control plate 55 are fixed to the rotating shaft 53, respectively used to seal the upper and lower ends of the gas storage tank 52; and

[0098] A plurality of vent holes 56 are respectively opened on the upper control plate 54 and the lower control plate 55. The vent holes 56 are adapted to the air storage tank 52, and the upper and lower sets of vent holes 56 are staggered.

[0099] The reaction assembly 34 is located below the lower control plate 55, and the top of the reaction chamber 32 is provided with a plurality of air outlets that are respectively connected to a plurality of air duct assemblies 4. The upper control plate 54 is located below the air outlets.

[0100] Specifically, the air outlet is connected to the air guide pipe assembly 4 via a flexible tube. In the initial state, the air vent 56 in the lower control plate 55 is aligned with the air storage tank 52, while the air vent 56 in the upper control plate 54 is offset from the air storage tank 52. During inflation, the gas generated by the chemical reaction enters the air storage tank 52 from bottom to top. When each air storage tank 52 is filled with gas, the gas volume and pressure in each air storage tank 52 are the same. The rotating shaft 53 is started to rotate, causing the air vent 56 in the lower control plate 55 to be offset from the air storage tank 52, and the air vent 56 in the upper control plate 54 to be aligned with the air storage tank 52. The gas in each air storage tank 52 enters each air pad 2 through each air guide pipe assembly 4. Since the gas volume in each air storage tank 52 is the same, and the path air guide pipe assembly 4 between each air storage tank and each air pad 2 is the same, the inflation expansion speed of each air pad 2 can be guaranteed to be consistent, further improving the stability and balance of the bed 1 during inflation.

[0101] like Figure 3-10 As shown, multiple sets of reaction components 34 are provided, driving the reaction components 34 to be evenly distributed in a ring around the circumference of the rotating shaft 53; the inflation mechanism 3 also includes:

[0102] A cutter 35 fixed to the rotating shaft 53 cuts multiple sets of sealing films 343 sequentially through the cutter 35 during the rotation of the rotating shaft 53.

[0103] The inclined plate 36 is fixed to the storage base 341; and

[0104] A push plate 37, fixed to the rotating shaft 53, is used to press the inclined plate 36 to move. During the rotation of the rotating shaft 53, the push plate 37 and the inclined plate 36 drive the placement seat 341 to rotate downward.

[0105] Specifically, in the initial state, the cutter 35 is located in the gap between two adjacent seats 341. At this time, the cutter 35 does not contact the sealing film 343 to avoid accidental contact. During the inflation process, the rotating shaft 53 is started to rotate. The cutter 35 first cuts the sealing film 343 on one of the seats 341. Then, the pusher plate 37 contacts the inclined plate 36 on the seat 341 and squeezes the inclined plate 36 and the seat 341 to rotate, causing the reaction powder 342 inside the seat 341 to fall downward through the cut and carry out chemical reaction. As the rotating shaft 53 continues to rotate, the cutter 35 cuts open each set of sealing films 343 in sequence, and the pusher 37 drives each placement seat 341 to rotate in sequence. Therefore, multi-stage chemical reactions can be carried out. During this process, the upper and lower sets of vent holes 56 alternately align with and stagger with the air storage tank 52. Finally, the gas generated by the chemical reaction multiple times can enter the air pad 2 in equal batches, realizing the function of multi-stage equal-volume inflation of the air pad 2. Even with rapid inflation, the bed 1 can remain stable throughout the overall inflation process.

[0106] like Figure 8 As shown, a reset torsion spring is provided on the storage seat 341, and the inclined plate 36 is located outside the rotation range of the cutter 35.

[0107] Specifically, the inclined plate 36 and the cutter 35 do not contact each other, thus avoiding interference between their movements.

[0108] like Figure 7-11 As shown, it also includes a drive mechanism 6, which includes:

[0109] A spring assembly 61 for driving the rotation of the rotating shaft 53, the spring assembly 61 having a knob 611; and

[0110] A limiting member 62 is fixed inside the reaction chamber 32, and the limiting member 62 is used to lock the knob 611.

[0111] Specifically, in the initial state, the mainspring assembly 61 is in a tightened state, and the limiting member 62 blocks the knob 611 to prevent the mainspring assembly 61 from releasing energy; when inflating, the limiting member 62 is removed, and the mainspring assembly 61 can work and drive the rotating shaft 53 to rotate.

[0112] like Figure 11 As shown, the limiting member 62 includes:

[0113] The card holder 621 is fixed inside the reaction chamber 32; and

[0114] A solid salt reservoir 622 is provided inside the card holder 621, which is used to block the knob 611.

[0115] Specifically, the solid salt container 622 is preferably, but not limited to, a salt block contained in the webbing. In the initial state, the solid salt container 622 located in the holder 621 blocks the knob 611. When water enters the reaction chamber 32, the solid salt container 622 melts upon contact with the water and no longer blocks the knob 611. Then the spring assembly 61 can rotate, realizing the function of automatic rotation of the shaft 53 after water enters the reaction chamber 32 when the water level is too high. No additional auxiliary drive device is required, making it more suitable for use in water-related transportation environments.

[0116] like Figure 11 As shown, the limiting member 62 also includes a protective film wrapped around the outside of the solid salt container 622;

[0117] The drive mechanism 6 also includes a pull rope 63, one end of which is fixed to the protective membrane, and the other end of which passes through the second water inlet 321 and is connected to the inner wall of the fixed base 31.

[0118] Specifically, the protective film is preferably, but not limited to, an easily tearable plastic film. This protective film prevents the solid salt container 622 from melting prematurely due to moisture. During transport, if the water level is too high, water enters and descends into the reaction chamber 32, causing the solid salt container 622 to descend as well. The pull rope 63 pulls on the protective film outside the solid salt container 622, tearing it open. Then, the solid salt container 622 comes into contact with the water in the reaction chamber 32 and melts. Therefore, the spring assembly 61 will only operate when water enters the reaction chamber 32 and the protective film is torn open. This solution extends the storage time of the solid salt container 622 while ensuring the spring assembly 61 is triggered normally, and avoids the situation where the solid salt container 622 melts due to moisture, thus making it safer and more reliable.

[0119] Example 2

[0120] like Figure 4 As shown in the comparative embodiment one, another embodiment of the present invention is as follows: the inner bottom wall of the reaction chamber 32 is provided with an upwardly protruding step, and the spring assembly 61 and the limiting member 62 are both provided at the top of the step.

[0121] Specifically, during the water transport process, the bed 1 may sway up and down. Even if the water level is not deep, splashing water may enter the reaction chamber 32. By setting up the boss, a small amount of water accumulates below the boss and will not trigger the spring assembly 61. Only when the water level is too high and a lot of water enters the reaction chamber 32, and the water level inside the reaction chamber 32 exceeds the step, will the spring assembly 61 work, further reducing the possibility of false triggering.

[0122] Working principle: When transporting emergency patients, the patient is placed on bed 1, and then bed 1 is moved. During the wading transport, if the water level is too high, exceeding the first inlet 311, the water enters the reaction chamber 32 through the second inlet 321. Once the water level in the reaction chamber 32 exceeds the step, the water comes into contact with the solid salt container 622, causing it to melt and no longer obstruct the knob 611. Then, the spring assembly 61 can rotate, driving the rotating shaft 53 to rotate. During the rotation of the shaft 53, the cutter 35 cuts open the sealing film 343, and the pusher 37 drives the placement seat 341 to rotate, causing the reaction powder 342 inside the placement seat 341 to fall downwards through the cut. In water, the reaction powder 342 reacts violently upon contact with water, rapidly producing a large amount of carbon dioxide gas, which rises into the gas storage tank 52, filling each tank with an equal amount of gas. As the shaft 53 continues to rotate, the vent 56 in the lower control plate 55 is offset from the gas storage tank 52, while the vent 56 in the upper control plate 54 is aligned with the gas storage tank 52. The gas in each gas storage tank 52 enters each air pad 2 through each air guide pipe assembly 4. The air pad 2 inflates, causing the bed 1 to float on the water surface. As the shaft 53 continues to rotate, the cutter 35 cuts each set of sealing membranes 343 in sequence, and the pusher 37 drives each placement seat 341 to rotate in sequence. Therefore, multi-stage inflation can be performed.

[0123] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. An emergency nursing transport device, comprising a bed (1), wherein the bottom end of the bed (1) is provided with support legs, characterized in that: Also includes: Several inflatable pads (2) installed at the bottom of the bed (1); An inflation mechanism (3) is provided at the bottom of the bed body (1), the inflation mechanism (3) is used to inflate the air mattress (2), and the inflation mechanism (3) is located at the center of the bed body (1); and A plurality of air duct assemblies (4) are provided, and the air pad (2) is connected to the inflation mechanism (3) through the air duct assemblies (4). The plurality of air pads (2) and the plurality of air duct assemblies (4) are symmetrically distributed about the center of the inflation mechanism (3). The inflation mechanism (3) includes: A fixing seat (31) is fixed to the bottom of the bed body (1), and a first water inlet (311) is provided on the side wall of the fixing seat (31). A reaction chamber (32) is provided inside the fixed base (31), and a second water inlet (321) is provided on the side wall of the reaction chamber (32). A support member (33) for supporting the upward movement of the reaction chamber (32), wherein after the support member (33) pushes the reaction chamber (32) upward, the first inlet (311) aligns with the second inlet (321); and A reaction assembly (34) for generating gas is installed inside the reaction chamber (32); It also includes a balancing mechanism (5), which comprises: Gas storage seat (51) fixed inside the reaction chamber (32); Several gas storage slots (52) are evenly distributed in the gas storage base (51), and the gas storage slots (52) penetrate the gas storage base (51) vertically. Rotate the shaft (53) installed at the center of the gas storage seat (51); An upper control plate (54) and a lower control plate (55) are fixed to the rotating shaft (53), the upper control plate (54) and the lower control plate (55) respectively sealing the upper and lower ends of the gas storage tank (52); and A plurality of vent holes (56) are respectively opened on the upper control plate (54) and the lower control plate (55). The vent holes (56) are adapted to the air storage tank (52), and the upper and lower sets of vent holes (56) are staggered. The reaction assembly (34) is located below the lower control plate (55), and the top of the reaction chamber (32) is provided with a plurality of air outlets that are respectively connected to a plurality of air duct assemblies (4). The upper control plate (54) is located below the air outlets.

2. The emergency nursing transport device according to claim 1, characterized in that: The reaction assembly (34) includes: Rotate the storage seat (341) installed inside the reaction chamber (32). The storage seat (341) is cylindrical and has two cavities inside. The reaction powder (342) was filled into the two cavities respectively; and A sealing membrane (343) for sealing the opening of a cavity.

3. The emergency nursing transport device according to claim 2, characterized in that: The reaction assembly (34) is provided in multiple sets, driving the reaction assembly (34) to be evenly distributed in a ring around the circumference of the rotating shaft (53); the inflation mechanism (3) further includes: A cutter (35) fixed to the rotating shaft (53) cuts multiple sets of sealing films (343) sequentially through the cutter (35) during the rotation of the rotating shaft (53); The inclined plate (36) fixed to the holder (341); and A push plate (37) fixed to the rotating shaft (53) is used to press the inclined plate (36) to move. During the rotation of the rotating shaft (53), the push plate (37) and the inclined plate (36) drive the seat (341) to rotate downward.

4. The emergency nursing transport device according to claim 3, characterized in that: A reset torsion spring is provided on the storage seat (341), and the inclined plate (36) is located outside the rotation range of the cutter (35).

5. An emergency nursing transport device according to claim 4, characterized in that: It also includes a drive mechanism (6), which comprises: A spring assembly (61) for driving the rotation of the shaft (53), the spring assembly (61) having a knob (611); and A limiting member (62) is fixed inside the reaction chamber (32), the limiting member (62) being used to lock the knob (611).

6. An emergency nursing transport device according to claim 5, characterized in that: The limiting member (62) includes: A retainer (621) fixed inside the reaction chamber (32); and A solid salt reservoir (622) is provided inside the card holder (621), which is used to block the knob (611).

7. An emergency nursing transport device according to claim 6, characterized in that: The limiting member (62) also includes a protective film wrapped around the outside of the solid salt container (622); The drive mechanism (6) also includes a pull rope (63), one end of which is fixed to the protective film, and the other end of which passes through the second water inlet (321) and is connected to the inner wall of the fixed seat (31).

8. An emergency nursing transport device according to claim 7, characterized in that: The reaction chamber (32) has an upward protruding step on its inner bottom wall, and the spring assembly (61) and the limiting member (62) are both located at the top of the step.

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