Thin ice surface rescue boat

Abstract

The invention discloses a thin ice surface rescue boat, which relates to the field of underwater rescue and comprises a rescue boat body, air cushions are mounted on the left and right sides of the rescue boat body, a roller is rotatably connected to the front end of the rescue boat body, a rescue rope is wound on the outer wall of the roller, and a safety hook and a sensing assembly are fixedly connected to the end part of the rescue rope. Through cooperative work of the induction air bag arranged in the induction assembly and the air guide bin, the filling degree of the air bag can be intelligently controlled according to the water falling depth, the deeper the water is, the more the number of rotation turns of the rotating wheel driven by the impeller is, multi-round feeding of sodium bicarbonate particles is achieved, and the feeding efficiency is improved. The more carbon dioxide gas is generated in the reaction bin, the more carbon dioxide gas finally enters the floating air bag, the inflation volume is larger, the buoyancy is higher, the mechanism of automatically adjusting the buoyancy according to the water depth can intelligently match the needed buoyancy according to the actual falling environment, insufficient buoyancy or excessive expansion is prevented, and the adaptability and rescue safety of the device are improved.

Description

Technical Field

[0001] The present invention relates to the field of underwater rescue, and particularly to a rescue boat for thin ice surfaces. Background Art

[0002] In cold regions, sudden dangerous situations such as people falling through thin ice and into the water often occur in thin ice areas. Due to the low bearing capacity of thin ice surfaces, traditional manual rescue methods are not only inefficient but also pose a great risk of secondary ice breakage. To improve the timeliness and safety of rescue, rescue boats have been gradually introduced into thin ice environments in actual rescue tasks. However, the existing thin ice surface rescue devices still have many deficiencies in actual use and are difficult to meet the requirements of fast, safe, and efficient rescue in extreme environments; Most existing rescue boats adopt a fixed buoyancy structure and cannot automatically adjust the upward buoyancy according to the water depth where the fallen person is located. During the actual rescue process, if the underwater position is relatively deep, the fixed airbag may result in insufficient upward buoyancy, unable to quickly bring the fallen person to the water surface, delaying the rescue opportunity and even endangering life safety; Traditional water rescue devices mostly use mechanical winches or simple rope structures to release rescue equipment, lacking an automatic sensing and self-driven gas generation mechanism, unable to achieve underwater autonomous reaction to generate gas for rapid inflation and floating, resulting in low overall floating efficiency and slow response speed, and unable to adapt to complex and changeable ice-water mixed environments; Therefore, there is a need for a thin ice surface rescue boat with a reasonable structure, rapid response, and adjustable buoyancy according to water depth, which not only has the ability to accurately deliver rescue equipment but also should have functions such as intelligent positioning and spontaneous gas generation and floating underwater to improve the water rescue efficiency and reliability in extreme environments.

[0003] After retrieval, it is found that the prior art publication number CN107651138A discloses a thin ice surface rescue boat, which consists of a hull. On both sides of the hull, there is an impeller, and the impeller is driven by a separate engine. By controlling the rotation speeds of the two impellers, the steering of the hull can be achieved. On both sides of the hull, there are also support frames, and at the front end of the support frames, there are rubber plates. After the boat reaches the rescue area, the support frames are lowered by a hydraulic pump in the hull and supported on the ice surface to prevent the hull from shaking during the rescue process. In the hull at the front of the hull, there is also a bracket, which consists of a power device, a telescopic rod, a support plate, and a lifting device. There is also a small crane on the hull. This solution can make the hull more stable on the ice-water mixed water surface by setting support frames around the hull. The bracket installed in front of the hull can first lift the fallen person from underwater during rescue and then transfer them to the hull by the crane.

[0004] Therefore, based on the above retrieval and in combination with the existing technologies, there is an existing thin ice surface rescue boat. This device does not have an adaptive buoyancy adjustment or floating assistance mechanism for different water depth environments. In practical applications, if a person falls into deeper water, relying solely on the bracket extension and crane hoisting, the response speed is slow, the operation is difficult, and it is extremely easy to delay the rescue opportunity. Moreover, under the interference of wind and waves or underwater rapids, it is difficult for the mechanical device to accurately position, resulting in low rescue efficiency. Summary of the Invention

[0005] The purpose of the present invention is to provide a thin ice surface rescue boat to solve the problems raised in the above background technology.

[0006] To achieve the above purpose, the present invention provides the following technical solutions: It includes a rescue boat body. The outer wall of the rescue boat body is welded and fixed with an installation steel frame. On both the left and right sides of the installation steel frame, air cushions for sliding on the ice surface are fixedly installed. At the rear end of the installation steel frame, an engine is fixedly installed. The output shaft of the engine is coaxially fixedly installed with a propeller blade for providing power. At the front end of the installation steel frame, a roller is rotatably connected. A rescue rope is wound around the outer wall of the roller. The rotating shaft of the roller passes through the side wall of the installation steel frame and is coaxially fixedly installed with a reduction motor. The end parts of the rescue rope are respectively fixedly connected with a safety hook for underwater rescue and an induction component. The induction component includes an air guide chamber. A gas generating component is installed on the rear end face of the air guide chamber. An upward floating airbag for helping underwater personnel quickly float is connected to the outer wall of the gas generating component. A triggering component is fixedly installed on the outer wall of the air guide chamber.

[0007] As a further solution of the present invention, an air inlet pipe is provided on the outer wall of the air guide chamber. The air inlet pipe is coaxially fixedly connected with an induction airbag. A first ball valve is slidably installed inside the air inlet pipe. A first spring is fixedly connected to the outer wall of the first ball valve. On the side of the outer wall of the air guide chamber away from the air inlet pipe, an air outlet pipe is provided. The end of the air outlet pipe is coaxially fixedly connected with a storage airbag. A second ball valve is slidably installed inside the air outlet pipe. A second spring is fixedly connected to the outer wall of the second ball valve.

[0008] As a further solution of the present invention, an impeller is rotatably connected inside the air guide chamber. The front and rear walls of the impeller are respectively abutted against the front and rear inner walls of the air guide chamber. The rotating shaft of the impeller passes through the front side wall of the air guide chamber and is coaxially fixedly connected with a ratchet gear.

[0009] As a further solution of the present invention, an extension plate is provided on the outer wall of the air guide chamber. A third spring is fixedly installed on the top surface of the extension plate. One end of the third spring extending from the extension plate is fixedly connected with a first ratchet block. The first ratchet block is engaged and clamped with the ratchet gear.

[0010] As a further solution of the present invention, the gas generating component includes a rotating chamber. The rotating chamber is coaxially fixedly installed on the rear end face of the air guide chamber through bolts. A rotating wheel is rotatably connected to the inner wall of the rotating chamber. The outer wall size of the rotating wheel is adapted to the inner wall size of the rotating chamber. The rotating wheel is coaxially fixedly connected with the impeller.

[0011] As a further solution of the present invention, a feed inlet and a discharge outlet are respectively provided on the outer wall of the rotating bin. A storage cylinder is coaxially and fixedly installed at the feed inlet, and sodium bicarbonate particles are stored inside the storage cylinder. A reaction bin is fixedly installed at the bottom surface of the discharge outlet, and a number of material transport bins are equidistantly arranged on the outer circumference of the rotating wheel.

[0012] As a further solution of the present invention, a turning plate is hinged to the inner wall of the discharge outlet of the rotating bin. A torsion spring is installed between the rotating shaft of the turning plate and the inner wall of the discharge outlet. A number of receiving grooves are equidistantly arranged on the outer wall of the rotating wheel. A second ratchet block is slidably connected inside each of the receiving grooves, and a return spring is clamped between the bottom surface of the second ratchet block and the inner bottom surface of the receiving groove.

[0013] As a further solution of the present invention, a sealing ring is provided in the middle of the inner wall of the reaction bin. A support frame is provided at the bottom surface of the sealing ring. A piston is slidably connected to the top surface of the support frame. The piston abuts against the inner wall of the sealing ring. The piston and the sealing ring divide the interior of the reaction bin into an upper cavity and a lower cavity. A weak acid is stored inside the lower cavity of the reaction bin. A connecting pipe is provided at a position near the top of the outer wall of the lower cavity of the reaction bin. The floating airbag is coaxially and fixedly connected to the connecting pipe.

[0014] As a further solution of the present invention, the triggering assembly includes a light rod. The top end of the light rod is fixedly installed on the outer wall of the air guide bin. The bottom end of the light rod is fixedly installed with an identification bin. An insurance cylinder is coaxially and fixedly installed on the outer wall of the light rod. A triggering cylinder is coaxially slidably installed on the outer wall of the light rod.

[0015] As a further solution of the present invention, a triggering rope is fixedly connected to the outer wall of the triggering cylinder. The end of the triggering rope away from the triggering cylinder passes through the side wall of the reaction bin and is fixedly connected to the bottom end of the piston.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. During the use of the present invention, through the coordinated work of the induction airbag built in the induction component and the air guide bin, it can intelligently control the filling degree of the airbag according to the water depth. As the water depth increases, the induction airbag is compressed by the external water pressure, and the high-pressure gas inside it pushes the first ball valve to open, starting the rotation of the impeller in the air guide bin, thereby driving the ratchet gear and the rotating wheel to continuously work, realizing multiple rounds of feeding of sodium bicarbonate particles. The deeper the water, the more turns the rotating wheel makes, and the more carbon dioxide gas is generated in the reaction bin, and finally enters the floating airbag to make its inflation volume larger and buoyancy stronger. This mechanism of automatically adjusting buoyancy according to water depth can intelligently match the required buoyancy according to the actual water entry environment, prevent insufficient buoyancy or over-inflation, and improve the adaptability and rescue safety of the device; 2. During the use of the present invention, the nylon rescue rope is released through the roller, and the induction component is carried to achieve precise positioning and response to the drowning person. The air guide chamber in the induction component combines the induction airbag and the impeller structure, and uses the pressure difference generated by the water depth change to automatically start the device, driving the gas production component to operate. At the same time, a high-brightness LED underwater lamp emits a stroboscopic blue light to improve the visual recognition efficiency in complex water areas, providing technical support for precise rescue; 3. During the use of the present invention, a large amount of carbon dioxide gas is generated by the reaction of sodium bicarbonate and pre-filled citric acid, and strong buoyancy is quickly provided through the floating airbag to ensure that the drowning person can quickly float underwater. The airbag uses a polyester fabric-based TPU composite material, which has both high strength and good flexibility to ensure reliable buoyancy. At the same time, the device also supports the manual trigger function, and the rescuer can independently activate the reaction process through the trigger component, improving the practicability and safety of the device in variable rescue scenarios and comprehensively improving the underwater escape efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic diagram of the overall structure of the present invention; Figure 2 is an exploded view of the overall structure of the present invention; Figure 3 is a schematic diagram of the partial structure of the present invention; Figure 4 is an exploded Figure 1 ; Figure 5 is an exploded view of the induction component structure of the present invention; Figure 6 is an exploded view of the gas production component structure of the present invention; Figure 7 is an exploded Figure 2 ; Figure 8 is an exploded view of the trigger component structure of the present invention; Figure 9 is a cross-sectional view of the partial component of the present invention Figure 1 ; Figure 10 is a cross-sectional view of the partial structure of the present invention Figure 1 ; Figure 11 is a cross-sectional view of the partial component of the present invention Figure 2 ; Figure 12 is a cross-sectional view of the partial structure of the present invention Figure 2 .

[0018] In the figure: 1. Rescue boat body; 11. Installation steel frame; 2. Air cushion; 3. Engine; 31. Propeller blade 4. Roller; 41. Reducing motor 5. Safety hook 6. Induction component; 61. Air guide chamber; 611. Intake pipe; 612. Exhaust pipe; 62. Induction airbag; 63. First ball valve; 631. First spring; 64. Storage airbag; 65. Second ball valve; 651. Second spring; 66. Impeller; 67. Ratchet gear; 68. First ratchet block; 681. Third spring; 69. Hand rocker 7. Gas generating component; 71. Rotating chamber; 72. Rotating wheel; 721. Material transporting chamber; 722. Receiving groove; 73. Second ratchet block; 731. Return spring; 74. Storage cylinder; 75. Flipping plate; 76. Reaction chamber; 761. Sealing ring; 762. Support frame; 77. Piston; 771. Fourth spring 8. Buoyancy airbag 9. Trigger component; 91. Smooth rod; 911. Identification chamber; 92. Trigger cylinder; 921. Safety cylinder; 93. Trigger rope Detailed implementation mode

[0019] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention

[0020] Embodiment 1: Please refer to Figures 1 to 4A thin ice rescue boat includes a rescue boat body 1. The outer wall of the rescue boat body 1 is welded with a mounting steel frame 11. The left and right sides of the mounting steel frame 11 are fixed with air cushions 2 for sliding on the ice. Specifically, the material of the air cushion 2 is nylon-based coated cloth. The nylon-based coated cloth has high strength and tear resistance, can withstand an environment of -40°C, is not brittle, and has good flexibility and is suitable for frequent deformation. The surface of the nylon-based coated cloth is coated with PU. Coating, PU coating has the characteristics of waterproof and wear-resistant. The rear end of the mounting steel frame 11 is fixedly installed with an engine 3, and the output shaft of the engine 3 is coaxially fixedly installed with a propeller blade 31 for providing power. Specifically, the engine 3 is a diesel engine, and the propeller blade 31 is driven by the engine 3 to drive the rescue boat body 1 to move forward on the ice or water surface. The front end of the mounting steel frame 11 is rotatably connected with a roller 4, and a rescue rope is wrapped around the outer wall of the roller 4. Specifically, the rescue rope is made of nylon. Nylon has high strength, strong toughness, and good elasticity. It can provide buffering when subjected to impact loads, and has good wear resistance and is suitable for rough terrain. The rotating shaft of the roller 4 passes through the side wall of the mounting steel frame 11 and is coaxially fixed with a reduction motor 41. Specifically, the model of the reduction motor 41 is Z5BLD120-220GU-30S+5GU30KB, the release and recovery of the rescue rope are controlled by the reduction motor 41, and the ends of the rescue rope are fixedly connected with a safety hook 5 and a sensing component 6 for underwater rescue. The sensing component 6 includes an air guide chamber 61. Specifically, the rescue rope is fixedly connected to a hook welded and fixed to the outer wall of the air guide chamber 61, and a gas production component 7 is installed on the rear end face of the air guide chamber 61. The outer wall of the gas production component 7 is connected to a buoyancy airbag 8 for helping underwater personnel to float quickly. Specifically, the buoyancy airbag 8 is made of polyester cloth-based TPU composite material. The polyester cloth-based TPU composite material has polyester cloth in the middle and is wrapped with TPU on the surface. It has extremely high strength and flexibility. A trigger component 9 is fixedly installed on the outer wall of the air guide chamber 61.

[0021] Example 2: Please refer to Figures 2 to 5 、 Figure 9 、 Figure 10, A thin ice surface rescue boat, which is different from that in Embodiment 1 in that an air inlet pipe 611 is provided on the outer wall of the air guide chamber 61. The air inlet pipe 611 is coaxially and fixedly connected with an induction airbag 62. Specifically, the material of the induction airbag 62 is butyl rubber, which has excellent elasticity, is sensitive to external pressure, is easily compressed, and has good airtightness. Before the induction airbag 62 enters the water, it is filled with air inside. A first ball valve 63 is slidably installed inside the air inlet pipe 611. A first spring 631 is fixedly connected to the outer wall of the first ball valve 63. Specifically, a contact ring is provided at the right end of the inner wall of the air inlet pipe 611, and the outer wall of the first ball valve 63 abuts against the inner wall of the contact ring. A fixing ring is provided on the inner wall of the air inlet pipe 611. One end of the first spring 631 away from the first ball valve 63 is fixedly connected to the blocking ring. The first spring 631 releases elastic force to make the first ball valve 63 closely abut against the contact ring, so as to close the air inlet pipe 611. An air outlet pipe 612 is provided on the side of the outer wall of the air guide chamber 61 away from the air inlet pipe 611. The end of the air outlet pipe 612 is coaxially and fixedly connected with a storage airbag 64. Specifically, the material of the storage airbag 64 is butyl rubber, which has excellent elasticity, is sensitive to external pressure, is easily compressed, and has good airtightness. Before the storage airbag 64 enters the water, it is not filled with air inside. A second ball valve 65 is slidably installed inside the air outlet pipe 612. A second spring 651 is fixedly connected to the outer wall of the second ball valve 65. Specifically, a contact ring is provided at the right end of the inner wall of the air outlet pipe 612, and the outer wall of the second ball valve 65 abuts against the inner wall of the contact ring. A fixing ring is provided on the inner wall of the air outlet pipe 612. One end of the second spring 651 away from the second ball valve 65 is fixedly connected to the blocking ring. The second spring 651 releases elastic force to make the second ball valve 65 closely abut against the contact ring, so as to close the air outlet pipe 612. An impeller 66 is rotatably connected inside the air guide chamber 61. Specifically, rotating holes are provided on both the front and rear ends of the air guide chamber 61. Bearings are installed between the rotating shaft of the impeller 66 and the rotating holes. The bearings can reduce friction and extend the service life of the device. At the same time, a sealing ring is clamped between the outer wall of the bearing and the inner wall of the rotating hole. The sealing ring can ensure the airtightness of the air guide chamber 61, so as to form a sealed cabin inside the air guide chamber 61, avoiding water ingress or air leakage inside the air guide chamber 61. The front and rear walls of the impeller 66 respectively abut against the front and rear inner walls of the air guide chamber 61. Specifically, when the settlement depth of the induction airbag 62 in the water becomes deeper and deeper, the water pressure on the outer wall of the induction airbag 62 is greater. The water pressure compresses the induction airbag 62. The gas inside the induction airbag 62 pushes open the first ball valve 63 and compresses the first spring 631, so that the air inlet pipe 611 is communicated with the inside of the induction airbag 62. The high-pressure gas inside the induction airbag 62 enters the air guide chamber 61 through the air inlet pipe 611. The high-pressure gas pushes the impeller 66 to rotate. The impeller 66 transports the gas to the air outlet pipe 612. The high-pressure gas pushes open the second ball valve 65 and compresses the second spring 651, so that the air outlet pipe 612 is communicated with the storage airbag 64. The high-pressure gas enters the storage airbag 64. The rotating shaft of the impeller 66 passes through the front side wall of the air guide chamber 61 and is coaxially and fixedly connected with a ratchet gear 67. An extension plate is provided on the outer wall of the air guide chamber 61.A third spring 681 is fixedly installed on the top surface of the extension plate. One end of the third spring 681 extending from the extension plate is fixedly connected to a first ratchet block 68. The first ratchet block 68 is engaged and clamped with a ratchet gear 67. Specifically, the impeller 66 drives the ratchet gear 67 to rotate synchronously. The rotation of the ratchet gear 67 is controlled by the first ratchet block 68 to only rotate in one direction, preventing the ratchet gear 67 and the impeller 66 from reversing, which affects the transmission efficiency of high-pressure gas. A hand rocker 69 is coaxially and fixedly installed on the front end face of the ratchet gear 67. The ratchet gear 67 and the impeller 66 can be manually driven through the hand rocker 69.,

[0022] Example 3: Please refer to Figures 5 to 12, A thin ice surface rescue boat, which is different from that in Embodiment 1 in that the gas generating assembly 7 includes a rotating chamber 71. The rotating chamber 71 is coaxially and fixedly installed on the rear end face of the air guide chamber 61 through bolts. A rotating wheel 72 is rotatably connected to the inner wall of the rotating chamber 71. The outer wall size of the rotating wheel 72 is adapted to the inner wall size of the rotating chamber 71. Specifically, a rotating hole is provided on the front end face of the rotating chamber 71. A bearing is provided between the rotating shaft of the rotating wheel 72 and the inner wall of the rotating hole. The bearing can reduce friction and extend the service life of the device. At the same time, a sealing ring is clamped between the outer wall of the bearing and the inner wall of the rotating hole. The sealing ring can ensure the airtightness of the rotating chamber 71, so that a sealed cabin is formed inside the rotating chamber 71, preventing water from entering or air from leaking inside the rotating chamber 71. The rotating wheel 72 is coaxially and fixedly connected to the impeller 66. Specifically, both the ratchet gear 67 and the impeller 66 can drive the rotating wheel 72 to rotate synchronously. Feed ports and discharge ports are respectively provided on the outer wall of the rotating chamber 71. A storage cylinder 74 is coaxially and fixedly installed at the feed port. Sodium bicarbonate particles are stored inside the storage cylinder 74. A reaction chamber 76 is fixedly installed on the bottom surface of the discharge port. A plurality of material transport chambers 721 are equidistantly arranged on the outer wall circumference of the rotating wheel 72. Specifically, when the impeller 66 drives the rotating wheel 72 to rotate, when the material transport chamber 721 passes directly below the feed port, the sodium bicarbonate particles inside the storage cylinder 74 enter the material transport chamber 721 by gravity. The rotating wheel 72 continues to rotate. The material transport chamber 721 storing sodium bicarbonate will come to the discharge port and discharge the sodium bicarbonate into the reaction chamber 76. A turning plate 75 is hinged to the inner wall of the discharge port of the rotating chamber 71. A torsion spring is installed between the rotating shaft of the turning plate 75 and the inner wall of the discharge port. Specifically, the torsion spring provides a turning force for the turning plate 75, and the turning plate 75 closes the discharge port. A blocking block is provided on the inner wall of the discharge port to prevent the turning plate 75 from turning over excessively. A plurality of receiving grooves 722 are equidistantly arranged on the outer wall of the rotating wheel 72. A second ratchet block 73 is slidably connected inside each of the plurality of receiving grooves 722. A return spring 731 is clamped between the bottom surface of the second ratchet block 73 and the inner bottom surface of the receiving groove 722. Specifically, the plurality of second ratchet blocks 73 correspond to the plurality of material transport chambers 721 in position. When the rotating wheel 72 rotates, the plurality of second ratchet blocks 73 are retracted into the receiving grooves 722 under the pressure of the inner wall of the rotating chamber 71, and the return spring 731 is compressed. When the second ratchet block 73 comes to the discharge port, the return spring 731 releases its elastic force, and the return spring 731 pushes the second ratchet block 73 to move. The second ratchet block 73 pushes open the turning plate 75, compressing the torsion spring and opening the discharge port, assisting in discharging the sodium bicarbonate inside the material transport chamber 721 into the reaction chamber 76. A sealing ring 761 is provided in the middle of the inner wall of the reaction chamber 76. A support frame 762 is provided on the bottom surface of the sealing ring 761. A piston 77 is slidably connected to the top surface of the support frame 762. The piston 77 abuts against the inner wall of the sealing ring 761. The piston 77 and the sealing ring 761 divide the inside of the reaction chamber 76 into an upper cavity and a lower cavity. A weak acid with a sufficient concentration is stored inside the lower cavity of the reaction chamber 76. Specifically, the weak acid is citric acid. A sliding hole is provided at the center of the top surface of the support frame 762. A sliding rod is provided on the bottom surface of the piston 77.The sliding rod is slidably inserted into the sliding hole. A fourth spring 771 is sleeved on the outer wall of the sliding rod. The top end of the fourth spring 771 abuts against the bottom surface of the piston 77, and the bottom end of the fourth spring 771 abuts against the top surface of the support frame 762. The fourth spring 771 has an upward elastic force on the piston 77, so that the piston 77 is in close contact with the sealing ring 761. A connecting pipe is provided at a position near the top of the outer wall of the lower cavity of the reaction chamber 76, and the floating airbag 8 is coaxially and fixedly connected to the connecting pipe.,

[0023] Please refer to Figure 4 、 Figure 5 、 Figure 8 、 Figure 11 、 Figure 12 . The trigger assembly 9 includes a light rod 91. The top end of the light rod 91 is fixedly installed on the outer wall of the air guide chamber 61, and the bottom end of the light rod 91 is fixedly installed with an identification chamber 911. Specifically, the light rod 91 is a rigid rod. A high-brightness LED underwater lamp is installed inside the identification chamber 911. The light is blue light, and the luminous flux is recommended to be 300 to 1000 lumens, and it is set to a stroboscopic mode to make it easier to be discovered. The inside of the identification chamber 911 is filled with a counterweight to keep the induction assembly 6 and the gas generation assembly 7 vertically descending in the water. An insurance cylinder 921 is coaxially and fixedly installed on the outer wall of the light rod 91, and a trigger cylinder 92 is coaxially and slidably installed on the outer wall of the light rod 91. Specifically, the inner wall size of the trigger cylinder 92 is adapted to the outer wall size of the insurance cylinder 921. A number of teeth are equidistantly arranged on the outer circumference of the outer wall of the insurance cylinder 921, and a number of card slots are equidistantly arranged on the inner circumference of the inner wall of the trigger cylinder 92. The positions of the card slots and the teeth correspond to each other. Only when the positions of the card slots and the teeth correspond to each other can the trigger cylinder 92 be slid downward to prevent the trigger cylinder 92 from being accidentally triggered. A trigger rope 93 is fixedly connected to the outer wall of the trigger cylinder 92. One end of the trigger rope 93 away from the trigger cylinder 92 passes through the side wall of the reaction chamber 76 and is fixedly connected to the bottom end of the piston 77. Specifically, when the positions of the card slots and the teeth correspond to each other and the trigger cylinder 92 is slid downward, the trigger cylinder 92 pulls the piston 77 to move downward through the trigger rope 93, compressing the fourth spring 771. The sodium bicarbonate in the upper cavity of the reaction chamber 76 enters the lower cavity through the through hole in the middle of the sealing ring 761 and reacts with citric acid, , this reaction can generate a large amount of carbon dioxide gas within a few seconds, which is safe, non-toxic, and easy to obtain. The generated large amount of carbon dioxide gas enters the floating airbag 8 to fill the inside of the floating airbag 8, and the buoyancy of the floating airbag 8 quickly brings the underwater personnel to the water surface.,

[0024] The working principle of the present invention is: when the device is working, the rescue ship body 1 drives the propeller blade 31 through the engine 3 to provide forward power, so that the rescue ship body 1 quickly advances on the ice surface or the water surface. Air cushions 2 made of nylon-based coated fabric are installed on both sides of the hull. The air cushions 2 have good flexibility, cold resistance, and wear resistance, ensuring that the rescue ship body 1 can maintain stable sliding in extreme environments; After approaching the rescue target position, the nylon rescue rope is released through the roller 4 installed at the front end of the installation steel frame 11. The roller 4 controls the recovery and release of the rescue rope through the reduction motor 41. A safety hook 5 and an induction component 6 are fixedly connected to the end of the rescue rope. The induction component 6 mainly includes an air guide chamber 61, a gas production component 7, a floating airbag 8, and a trigger component 9, which are used to assist in positioning and floating of personnel in water; The air guide chamber 61 is fixed to the rescue rope through a welding hook. An airtight impeller 66 is arranged inside the air guide chamber 61, which can be pushed and rotated by high-pressure air flow underwater. An induction airbag 62 is arranged on one side of the air guide chamber 61. The induction airbag 62 is inflated before entering the water. As the depth of the water increases, the external water pressure of the induction airbag 62 gradually increases. After being pressed, the high-pressure air inside the induction airbag 62 pushes the first ball valve 63 and compresses the first spring 631, opening the air inlet pipe 611. The high-pressure gas flows into the inside of the air guide chamber 61 and pushes the impeller 66 to rotate; As the impeller 66 rotates, the ratchet gear 67 fixed on its rotating shaft also rotates synchronously. With the cooperation of the first ratchet block 68 and the third spring 681, the one-way rotation restriction of the ratchet gear 67 and the impeller 66 is realized. During this process, in the air outlet pipe 612 on the other side of the air guide chamber 61, the second ball valve 65 is pushed open by the air flow, compressing the second spring 651, so that the high-pressure gas enters the storage airbag 64; At the same time, the impeller 66 synchronously drives the rotating wheel 72 installed coaxially with it to rotate, starting the gas production component 7. A plurality of material transport bins 721 are arranged on the rotating wheel 72. When aligned with the feed inlet of the storage barrel 74, the sodium bicarbonate particles inside the storage barrel 74 fall into the material transport bin 721 by gravity, and then are transported by the material transport bin 721 to above the discharge port. Under the cooperation of the second ratchet block 73 and the return spring 731, the turning plate 75 is pushed open, and the sodium bicarbonate is put into the lower cavity of the reaction chamber 76 to complete the feeding process. The deeper the water depth, the more gas the storage airbag 64 is compressed, the more turns the impeller 66 drives the rotating wheel 72 to rotate, and the more sodium bicarbonate is added to the inside of the reaction chamber 76; For auxiliary positioning, an identification bin 911 with a high-brightness LED underwater lamp is installed outside the air guide chamber 61, which can emit a flashing blue light to improve the rescue recognition rate in a complex water environment; The lower cavity of the reaction chamber 76 is pre-filled with a sufficient concentration of weak acid citric acid, which reacts with sodium bicarbonate to quickly generate a large amount of carbon dioxide gas. This process can be achieved through the manual trigger component 9. The operator first connects the safety hook 5 to its own external hook, then rotates the trigger cylinder 92, aligns the card slot of the trigger cylinder 92 with the card tooth position of the safety cylinder 921, and pulls the trigger cylinder 92 downward. The trigger cylinder 92 drives the trigger rope 93 to pull the piston 77 downward, opening the through hole in the middle of the sealing ring 761, so that sodium bicarbonate falls into the lower cavity and contacts with citric acid to react. The carbon dioxide gas enters the floating airbag 8 through the connecting pipe, filling it and causing it to expand rapidly. The floating airbag 8 is made of a polyester cloth-based TPU composite material with high strength and good flexibility. It can quickly provide strong buoyancy for the person who falls into the water, quickly bring him to the water surface, and complete the underwater rescue. At this point, the work of this device is completed.

[0025] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A thin ice surface rescue boat, comprising a rescue boat body (1), characterized in that: On the outer wall of the rescue ship body (1), a mounting steel frame (11) is fixedly welded. On both the left and right sides of the mounting steel frame (11), air cushions (2) for sliding on the ice surface are fixedly installed. At the rear end of the mounting steel frame (11), an engine (3) is fixedly installed. The output shaft of the engine (3) is coaxially and fixedly installed with a propeller blade (31) for providing power. At the front end of the mounting steel frame (11), a roller (4) is rotatably connected. A rescue rope is wound around the outer wall of the roller (4). The rotating shaft of the roller (4) passes through the side wall of the mounting steel frame (11) and is coaxially and fixedly installed with a reduction motor (41). The end parts of the rescue rope are respectively fixedly connected with a safety hook (5) for underwater rescue and an induction component (6). The induction component (6) includes an air guide chamber (61). On the rear end face of the air guide chamber (61), a gas generating component (7) is installed. The outer wall of the gas generating component (7) is connected with a floating air bag (8) for helping underwater personnel to quickly float up. On the outer wall of the air guide chamber (61), a trigger component (9) is fixedly installed.

2. The thin ice surface rescue ship according to claim 1, characterized in that: On the outer wall of the air guide chamber (61), an air inlet pipe (611) is provided. The air inlet pipe (611) is coaxially and fixedly connected with an induction air bag (62). Inside the air inlet pipe (611), a first ball valve (63) is slidably installed. On the outer wall of the first ball valve (63), a first spring (631) is fixedly connected. On the side of the outer wall of the air guide chamber (61) far from the air inlet pipe (611), an air outlet pipe (612) is provided. The end of the air outlet pipe (612) is coaxially and fixedly connected with a storage air bag (64). Inside the air outlet pipe (612), a second ball valve (65) is slidably installed. On the outer wall of the second ball valve (65), a second spring (651) is fixedly connected.

3. The thin ice surface rescue ship according to claim 2, characterized in that: Inside the air guide chamber (61), an impeller (66) is rotatably connected. The front and rear walls of the impeller (66) are respectively in contact with the front and rear inner walls of the air guide chamber (61). The rotating shaft of the impeller (66) passes through the front side wall of the air guide chamber (61) and is coaxially and fixedly connected with a ratchet gear (67).

4. The thin ice surface rescue ship according to claim 3, characterized in that: On the outer wall of the air guide chamber (61), an extension plate is provided. On the top surface of the extension plate, a third spring (681) is fixedly installed. One end of the third spring (681) on the extension plate is fixedly connected with a first ratchet block (68). The first ratchet block (68) is meshed and clamped with the ratchet gear (67).

5. The thin ice surface rescue ship according to claim 4, characterized in that: The gas generating component (7) includes a rotating chamber (71). The rotating chamber (71) is coaxially and fixedly installed on the rear end face of the air guide chamber (61) through bolts. Inside the rotating chamber (71), a rotating wheel (72) is rotatably connected. The outer wall size of the rotating wheel (72) is adapted to the inner wall size of the rotating chamber (71). The rotating wheel (72) is coaxially and fixedly connected with the impeller (66).

6. The thin ice surface rescue ship according to claim 5, wherein: On the outer wall of the rotating chamber (71), a feed port and a discharge port are respectively provided. At the feed port, a storage cylinder (74) is coaxially and fixedly installed. Inside the storage cylinder (74), sodium bicarbonate particles are stored. On the bottom surface of the discharge port, a reaction chamber (76) is fixedly installed. On the outer wall circumference of the rotating wheel (72), a number of material transport chambers (721) are equidistantly provided.

7. The thin ice surface rescue ship according to claim 6, characterized in that: The inner wall of the discharge port of the rotating bin (71) is hinged with a turning plate (75). A torsion spring is installed between the rotating shaft of the turning plate (75) and the inner wall of the discharge port. A plurality of receiving grooves (722) are equidistantly arranged on the outer wall of the rotating wheel (72). A second ratchet block (73) is slidably connected to the inside of each of the plurality of receiving grooves (722). A return spring (731) is clamped between the bottom surface of the second ratchet block (73) and the inner bottom surface of the receiving groove (722).

8. The thin ice surface rescue ship according to claim 7, characterized in that: A sealing ring (761) is arranged in the middle of the inner wall of the reaction chamber (76). A support frame (762) is arranged on the bottom surface of the sealing ring (761). A piston (77) is slidably connected to the top surface of the support frame (762). The piston (77) abuts against the inner wall of the sealing ring (761). The piston (77) and the sealing ring (761) divide the interior of the reaction chamber (76) into an upper cavity and a lower cavity. A weak acid is stored in the lower cavity of the reaction chamber (76). A connecting pipe is opened at a position near the top of the outer wall of the lower cavity of the reaction chamber (76). The floating airbag (8) is coaxially and fixedly connected to the connecting pipe.

9. The thin ice surface rescue ship according to claim 1, characterized in that: The triggering assembly (9) includes a light rod (91). The top end of the light rod (91) is fixedly installed on the outer wall of the air guide chamber (61). An identification chamber (911) is fixedly installed at the bottom end of the light rod (91). An insurance cylinder (921) is coaxially and fixedly installed on the outer wall of the light rod (91). A trigger cylinder (92) is coaxially and slidably installed on the outer wall of the light rod (91).

10. A thin ice surface rescue ship according to claim 9, characterized in that: A trigger rope (93) is fixedly connected to the outer wall of the trigger cylinder (92). One end of the trigger rope (93) away from the trigger cylinder (92) passes through the side wall of the reaction chamber (76) and is fixedly connected to the bottom end of the piston (77).

Images