A thin ice rescue boat

Abstract

The present invention discloses a thin ice surface rescue boat, which relates to the field of underwater rescue, comprising a rescue boat body, wherein air cushions are installed on the left and right sides of the rescue boat body, the front end of the rescue boat body is rotatably connected to a roller, the outer wall of the roller is wrapped with a rescue rope, the end of the rescue rope is fixedly connected to a safety hook and a sensing component, the rear end face of the sensing component is installed with a gas production component, and the outer wall of the gas production component is connected to a floating air bag. The present invention cooperates with the air guide chamber through the built-in sensing air bag of the sensing component to intelligently control the filling degree of the air bag according to the depth of the water. The deeper the water, the more revolutions the impeller drives the rotating wheel to rotate, realizing multiple rounds of feeding of sodium bicarbonate particles, so that more carbon dioxide gas is generated in the reaction chamber, and finally enters the floating air bag to make it more inflated and have stronger buoyancy. This mechanism of automatically adjusting the buoyancy according to the water depth can intelligently match the required buoyancy according to the actual water environment, prevent insufficient buoyancy or excessive expansion, and improve the adaptability of the device and the safety of rescue.

Description

Technical Field

[0001] The present invention relates to the field of underwater rescue, and in particular to a thin ice rescue vessel. Background Art

[0002] In cold regions, thin ice often creates unexpected dangers, such as people falling into ice or water. Due to the low carrying capacity of thin ice, traditional manual rescue methods are not only inefficient but also carry a significant risk of secondary ice fall. To improve the timeliness and safety of rescue efforts, rescue boats are gradually being used in thin ice environments. However, existing thin ice rescue devices still have many deficiencies in actual use, making it difficult to meet the demands for rapid, safe, and efficient rescue in extreme environments.

[0003] Most existing rescue boats use fixed buoyancy structures, which cannot automatically adjust the buoyancy according to the depth of the water where the person falls into the water. During the actual rescue process, if the underwater position is deep, the fixed airbag may cause insufficient buoyancy, and it will not be possible to quickly bring the person to the surface, delaying the rescue time and even endangering life safety.

[0004] Traditional water rescue equipment often uses mechanical winches or simple rope structures to release rescue equipment. These lack automatic sensing and self-driven gas generation mechanisms, making them unable to autonomously generate gas underwater for rapid inflation and buoyancy. This results in low overall buoyancy efficiency and slow response speed, making them unable to adapt to complex and changing ice-water mixed environments.

[0005] Therefore, a thin ice rescue boat with a reasonable structure, rapid response and adjustable buoyancy according to water depth is needed. It should not only have the ability to accurately deliver rescue equipment, but also have functions such as intelligent positioning and underwater spontaneous gas production and buoyancy to improve the efficiency and reliability of water rescue in extreme environments.

[0006] After searching, it was found that the prior art publication number is CN107651138A, which discloses a thin ice rescue boat, which includes a hull and an impeller on both sides of the hull. The impeller is driven by a separate engine, and the hull can be turned by controlling the rotation speed of the two impellers. Support frames are also provided on both sides of the hull, and a rubber plate is also provided at the front end of the support frame. After the ship arrives at the rescue area, the support frame is controlled by a hydraulic pump in the hull to be lowered and supported on the ice surface to prevent the hull from shaking during the rescue process. A bracket is also provided in the hull at the front of the hull, and the bracket consists of a power device, a telescopic rod, a support plate, and a pulling device. A small crane is also provided on the hull. This scheme can place the hull more stably on the water surface mixed with ice and water by arranging support frames around the hull. During rescue, the bracket installed in the front of the hull can first lift the person who falls into the water from underwater, and then transfer him to the hull by the crane.

[0007] Therefore, based on the above search and in combination with existing technologies, an existing thin ice rescue boat is not designed with adaptive buoyancy adjustment or floating assistance mechanism for different water depth environments. In actual application, if the person who falls into the water sinks into deeper water, relying solely on bracket extension and crane lifting will have slow response speed and difficult operation, which can easily delay the rescue opportunity. Moreover, under the interference of wind and waves or underwater rapids, it is difficult to accurately position the mechanical device, resulting in low rescue efficiency. Summary of the Invention

[0008] The object of the present invention is to provide a thin ice rescue vessel to solve the problems raised in the above background technology.

[0009] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: it includes a rescue boat body, a mounting steel frame is welded and fixed on the outer wall of the rescue boat body, air cushions for sliding on the ice are fixedly installed on the left and right sides of the mounting steel frame, an engine is fixedly installed on the rear end of the mounting steel frame, and the output shaft of the engine is coaxially fixed with a propeller blade for providing power, a roller is rotatably connected to the front end of the mounting steel frame, a rescue rope is wrapped around the outer wall of the roller, and a reduction motor is coaxially fixedly installed on the rotating shaft of the roller after passing through the side wall of the mounting steel frame, and the ends of the rescue rope are respectively fixedly connected with a safety hook and a sensing component for underwater rescue, the sensing component includes an air guide chamber, a gas production component is installed on the rear end face of the air guide chamber, the outer wall of the gas production component is connected to a buoyancy airbag for helping underwater personnel to float quickly, and a trigger component is fixedly installed on the outer wall of the air guide chamber.

[0010] As a further solution of the present invention, an air inlet pipe is provided on the outer wall of the air guide bin, which is coaxially fixedly connected to an induction air bag, a first ball valve is slidably installed inside the air inlet pipe, and a first spring is fixedly connected to the outer wall of the first ball valve. An air outlet pipe is provided on the side of the outer wall of the air guide bin away from the air inlet pipe, and a storage air bag is coaxially fixedly connected to the end of the air outlet pipe, a second ball valve is slidably installed inside the air outlet pipe, and a second spring is fixedly connected to the outer wall of the second ball valve.

[0011] As a further solution of the present invention, an impeller is rotatably connected inside the air guide bin, and the front and rear walls of the impeller are respectively in contact with the front and rear inner walls of the air guide bin. The rotating shaft of the impeller passes through the front side wall of the air guide bin and is coaxially fixedly connected to a ratchet gear.

[0012] As a further solution of the present invention, an extension plate is provided on the outer wall of the air guide compartment, a third spring is fixedly installed on the top surface of the extension plate, one end of the third spring extension plate is fixedly connected to a first ratchet block, and the first ratchet block is engaged with the ratchet gear.

[0013] As a further solution of the present invention, the gas production component includes a rotating bin, which is coaxially fixed on the rear end face of the air guide bin by bolts. The inner wall of the rotating bin is rotatably connected to a rotating wheel, the outer wall size of the rotating wheel is adapted to the inner wall size of the rotating bin, and the rotating wheel is coaxially fixed to the impeller.

[0014] As a further solution of the present invention, a feed port and a discharge port are respectively provided on the outer wall of the rotating bin, a storage barrel is coaxially fixedly installed at the feed port, sodium bicarbonate particles are stored inside the storage barrel, a reaction bin is fixedly installed on the bottom surface of the discharge port, and several transport bins are equidistantly provided on the circumference of the outer wall of the rotating wheel.

[0015] As a further solution of the present invention, a flip plate is hingedly connected to the inner wall of the discharge port of the rotating bin, a torsion spring is installed between the rotating axis of the flip plate and the inner wall of the discharge port, a number of storage grooves are equidistantly provided on the outer wall of the rotating wheel, a second ratchet block is slidably connected inside each of the storage grooves, and a reset spring is sandwiched between the bottom surface of the second ratchet block and the bottom surface of the storage groove.

[0016] As a further solution of the present invention, a sealing ring is provided in the middle of the inner wall of the reaction chamber, a support frame is provided on 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 chamber into an upper cavity and a lower cavity, a weak acid is stored in the lower cavity of the reaction chamber, a connecting pipe is opened near the top of the outer wall of the lower cavity of the reaction chamber, and the floating air bag is coaxially fixedly connected to the connecting pipe.

[0017] As a further solution of the present invention, the trigger assembly includes a polished rod, the top end of which is fixedly mounted on the outer wall of the air guide bin, the bottom end of which is fixedly mounted with an identification bin, the outer wall of the polished rod is coaxially fixedly mounted with a safety cylinder, and the outer wall of the polished rod is coaxially slidably mounted with a trigger cylinder.

[0018] As a further solution of the present invention, a trigger rope is fixedly connected to the outer wall of the trigger cylinder, and the end of the trigger rope away from the trigger cylinder passes through the side wall of the reaction chamber and is fixedly connected to the bottom end of the piston.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] 1. During use, the present invention uses the built-in sensing airbag of the sensing component to work in conjunction with the air guide chamber to intelligently control the filling level of the airbag according to the depth of the water. As the water depth increases, the sensing airbag is compressed by the external water pressure, and the high-pressure gas inside it pushes the first ball valve to open, starting the impeller in the air guide chamber to rotate, thereby driving the ratchet gear and the rotating wheel to work continuously, achieving multiple rounds of feeding of sodium bicarbonate particles. The deeper the water, the more revolutions the rotating wheel makes, and the more carbon dioxide gas is generated in the reaction chamber, which eventually enters the floating airbag to increase its inflation volume and increase its buoyancy. This mechanism of automatically adjusting buoyancy according to water depth can intelligently match the required buoyancy according to the actual water environment, prevent insufficient buoyancy or over-inflation, and improve the adaptability and rescue safety of the device.

[0021] 2. During use, the present invention releases a nylon rescue rope through a roller and is equipped with a sensing component to achieve precise positioning and response to the person who falls into the water. The air guide chamber in the sensing component combines with the sensing airbag and impeller structure, and uses the pressure difference generated by the water depth to automatically start the device, driving the gas production component to operate. At the same time, the high-brightness LED underwater light emits a strobe blue light, which improves visual recognition efficiency in complex waters and provides technical support for accurate rescue.

[0022] 3. During use, the present invention generates a large amount of carbon dioxide gas by reacting sodium bicarbonate with pre-filled citric acid, and quickly provides strong buoyancy through the floating airbag, ensuring that the person who falls into the water can quickly float up under the water. The airbag adopts a polyester cloth-based TPU composite material, which has both high strength and good flexibility to ensure reliable buoyancy. At the same time, the device also supports manual triggering function. The rescuer can autonomously activate the reaction process through the trigger component, thereby improving the practicality and safety of the device in various rescue scenarios and comprehensively improving the efficiency of underwater escape. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0024] Figure 2 It is an exploded view of the overall structure of the present invention;

[0025] Figure 3 It is a schematic diagram of the local structure of the present invention;

[0026] Figure 4 The local structure explosion of the present invention Figure 1 ;

[0027] Figure 5 An exploded view of the induction component structure of the present invention;

[0028] Figure 6 This is an exploded view of the gas production component structure of the present invention;

[0029] Figure 7 The local structure explosion of the present invention Figure 2 ;

[0030] Figure 8 An exploded view of the trigger assembly structure of the present invention;

[0031] Figure 9 A cross-sectional view of a local component of the present invention Figure 1 ;

[0032] Figure 10 This is a partial structural section of the present invention Figure 1 ;

[0033] Figure 11 A cross-sectional view of a local component of the present invention Figure 2 ;

[0034] Figure 12 This is a partial structural section of the present invention Figure 2 .

[0035] In the picture:

[0036] 1. Rescue boat body; 11. Install steel frame;

[0037] 2. Air cushion;

[0038] 3. Engine; 31. Propeller blades;

[0039] 4. Roller; 41. Reducer motor;

[0040] 5. Safety hook;

[0041] 6. Induction assembly; 61. Air guide chamber; 611. Inlet pipe; 612. Outlet 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 crank;

[0042] 7. Gas production assembly; 71. Rotating chamber; 72. Rotating wheel; 721. Material transport chamber; 722. Storage tank; 73. Second ratchet block; 731. Return spring; 74. Material storage barrel; 75. Turning plate; 76. Reaction chamber; 761. Sealing ring; 762. Support frame; 77. Piston; 771. Fourth spring;

[0043] 8. Floating airbag;

[0044] 9. Trigger assembly; 91. Polished rod; 911. Identification chamber; 92. Trigger cylinder; 921. Safety cylinder; 93. Trigger rope. DETAILED DESCRIPTION

[0045] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0046] Example 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.

[0047] Example 2: Please refer to Figures 2 to 5 、 Figure 9 、 Figure 10, a thin ice rescue boat, which is different from Example 1 in that an air inlet pipe 611 is provided on the outer wall of the air guide chamber 61, and the air inlet pipe 611 is coaxially fixedly connected to the 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 air tightness. The induction airbag 62 is filled with air before being launched into the water, and a first ball valve 63 is slidably installed inside the air inlet pipe 611. The outer wall of the first ball valve 63 is fixedly connected to a first spring 631. Specifically, an abutting 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 abutting ring. A fixing ring is provided on the inner wall of the air inlet pipe 611, and the 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 the elastic force to make the first ball valve 63 tightly abut against the abutment ring, so that the air inlet pipe 611 is closed. 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 fixedly connected with a storage air bag 64. Specifically, the material of the storage air bag 64 is butyl rubber. Butyl rubber has excellent elasticity, is sensitive to external pressure, is easily compressed, and has good air tightness. The storage air bag 64 is not filled with air before being launched into the water. A second ball valve 65 is slidably installed inside the air outlet pipe 612. The outer wall of the second ball valve 65 is fixedly connected to the second spring 651. Specifically, an abutment ring is provided at the right end of the inner wall of the air outlet pipe 612. The outer wall of the second ball valve 65 abuts against the inner wall of the abutment 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, and the second spring 651 releases the elastic force to make the second ball valve 65 tightly abut against the abutment ring, so that the air outlet pipe 612 is closed, and the impeller 66 is rotatably connected to the inside of the air guide chamber 61. Specifically, the front and rear ends of the air guide chamber 61 are both provided with rotating holes, and 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 air tightness of the air guide chamber 61, so that the inside of the air guide chamber 61 forms a closed cabin to prevent water from entering or leaking inside the air guide chamber 61. The front and rear walls of the impeller 66 abut against the front and rear inner walls of the air guide chamber 61 respectively. Specifically, when the induction airbag 62 is in water The deeper the sinking depth is, the greater the water pressure on the outer wall of the induction airbag 62 is, the water pressure compresses the induction airbag 62, and the gas inside the induction airbag 62 pushes open the first ball valve 63, compresses the first spring 631, and connects the air inlet pipe 611 with the inside of the induction airbag 62. The high-pressure gas inside the induction airbag 62 enters the air guide bin 61 through the air inlet pipe 611, and the high-pressure gas drives the impeller 66 to rotate. The impeller 66 transports the gas to the air outlet pipe 612, and the high-pressure gas pushes open the second ball valve 65, compresses the second spring 651, and connects the air outlet pipe 612 with the storage airbag 64. The high-pressure gas enters the storage airbag 64, and the rotating shaft of the impeller 66 passes through the front side wall of the air guide bin 61 and is coaxially fixedly connected to the ratchet gear 67. The outer wall of the air guide bin 61 is provided with an extension plate.A third spring 681 is fixedly mounted on the top surface of the extension plate. One end of the extension plate of the third spring 681 is fixedly connected to a first ratchet block 68, which meshes and engages with the ratchet gear 67. Specifically, the impeller 66 drives the ratchet gear 67 to rotate synchronously. The first ratchet block 68 controls the ratchet gear 67 to rotate in one direction, preventing the ratchet gear 67 and the impeller 66 from reversing and affecting the transmission efficiency of the high-pressure gas. A hand crank 69 is coaxially fixedly mounted on the front end surface of the ratchet gear 67. The hand crank 69 can be used to manually drive the ratchet gear 67 and the impeller 66 to rotate.

[0048] Example 3: Please refer to Figures 5 to 12, a thin ice rescue boat, which is different from Example 1 in that the gas production component 7 includes a rotating chamber 71, which is coaxially fixed to the rear end surface of the air guide chamber 61 by bolts, and the inner wall of the rotating chamber 71 is rotatably connected to a rotating wheel 72, and 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 opened on the front end surface of the rotating chamber 71, and 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 provided 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 closed cabin is formed inside the rotating chamber 71 to prevent water from entering or leaking inside the rotating chamber 71. The rotating wheel 72 is coaxially fixedly connected to the impeller 66. Specifically, The gear 67 and the impeller 66 can drive the rotating wheel 72 to rotate synchronously. The outer wall of the rotating bin 71 is respectively provided with a feed port and a discharge port. A storage barrel 74 is coaxially fixedly installed at the feed port. Sodium bicarbonate particles are stored in the storage barrel 74. A reaction bin 76 is fixedly installed on the bottom of the discharge port. A number of transport bins 721 are equidistantly provided on the outer wall of the rotating wheel 72. Specifically, when the impeller 66 drives the rotating wheel 72 to rotate, when the transport bin 721 passes directly under the feed port, the sodium bicarbonate particles inside the storage barrel 74 enter the transport bin 721 by gravity. The rotating wheel 72 continues to rotate, and the transport bin 721 storing sodium bicarbonate will come to the discharge port and discharge the sodium bicarbonate into the reaction bin 76. The inner wall of the discharge port of the rotating bin 71 is hinged with a flip plate 75, which flips When the locking cam 722 is in the unlocking state, the locking cam 722 is locked, and the locking cam 723 is in the unlocking state, so that the locking cam 723 can be locked. When the bottle is in the liquid state, the bottle is in the liquid state, and the bottle is in the liquid state. When the bottle is in the liquid state, the bottle is in the liquid state, and the bottle is in the liquid state. When the bottle is in the liquid state, the bottle is in the liquid state, and the bottle is in the liquid state, the bottle is in the liquid state, and the bottle is in the liquid state. When the bottle is in the liquid state, the bottle is in the liquid state, and the bottle is in the liquid state, the bottle is in the liquid state, and the bottle is in the liquid state.The sliding rod is slidably inserted into the sliding hole. The outer wall of the sliding rod is sleeved with a fourth spring 771. The top of the fourth spring 771 abuts against the bottom surface of the piston 77, and the bottom of the fourth spring 771 abuts against the top surface of the support frame 762. The fourth spring 771 exerts an upward elastic force on the piston 77, so that the piston 77 and the sealing ring 761 are tightly abutted. A connecting pipe is opened near the top of the outer wall of the lower cavity of the reaction chamber 76. The floating airbag 8 is coaxially fixedly connected to the connecting pipe.

[0049] See also Figure 4 、 Figure 5 、 Figure 8 、 Figure 11 、 Figure 12 , the trigger assembly 9 includes a light rod 91, the top of the light rod 91 is fixedly mounted on the outer wall of the air guide chamber 61, and the bottom of the light rod 91 is fixedly mounted with an identification chamber 911. Specifically, the light rod 91 is a rigid rod, and a high-brightness LED underwater light 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 strobe mode to make it easier to be found. The identification chamber 911 is filled with a counterweight block to keep the sensing component 6 and the gas production component 7 vertically descending in the water. A safety cylinder 921 is coaxially fixedly mounted on the outer wall of the light rod 91, and a trigger cylinder 92 is coaxially slidably mounted 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 safety cylinder 921. A number of teeth are equidistantly provided on the outer wall of the safety cylinder 921, and a number of slots are equidistantly provided on the inner wall of the trigger cylinder 92. The slots correspond to the positions of the teeth. Only when the slots are aligned with the positions of the teeth can the trigger cylinder 92 be aligned. The trigger cylinder 92 can be slid downwards in response to the corresponding position to prevent the trigger cylinder 92 from being triggered by mistake. A trigger rope 93 is fixedly connected to the outer wall of the trigger cylinder 92. The 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, the card slot and the card tooth position are aligned, and the trigger cylinder 92 is slid downwards. The trigger cylinder 92 pulls the piston 77 downwards 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 the citric acid. This reaction can produce a large amount of carbon dioxide gas within a few seconds. It is safe, non-toxic and easy to obtain. The large amount of carbon dioxide gas produced enters the floating airbag 8 and fills the inside of the floating airbag 8. The buoyancy of the floating airbag 8 quickly brings the underwater personnel to the surface of the water.

[0050] The working principle of the present invention is as follows: when the device is in operation, the rescue boat body 1 drives the propeller blades 31 through the engine 3 to provide forward power, so that the rescue boat body 1 can move forward quickly on the ice or water surface. Air cushions 2 made of nylon-based coated cloth are installed on both sides of the hull. The air cushions 2 have good flexibility and cold and wear resistance, ensuring that the rescue boat body 1 can maintain stable gliding even in extreme environments.

[0051] After approaching the rescue target location, the nylon rescue rope is released through the roller 4 installed at the front end of the mounting steel frame 11. The roller 4 controls the recovery and release of the rescue rope through the reduction motor 41. The end of the rescue rope is fixedly connected to the safety hook 5 and the sensing component 6. The sensing component 6 mainly includes an air guide chamber 61, a gas generating component 7, a buoyancy airbag 8 and a trigger component 9, which are used to assist personnel in locating and floating in the water;

[0052] The air guide chamber 61 is fixed to the rescue rope by a welded hook. A highly airtight impeller 66 is provided in the air guide chamber 61, which can be driven and rotated by the high-pressure airflow underwater. A sensing airbag 62 is provided on one side of the air guide chamber 61. The sensing airbag 62 is inflated before entering the water. As the depth of the water increases, the water pressure outside the sensing airbag 62 gradually increases. After the sensing airbag 62 is pressurized, the high-pressure air inside the sensing 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 interior of the air guide chamber 61 and drives the impeller 66 to rotate.

[0053] As the impeller 66 rotates, the ratchet gear 67 fixed to its shaft also rotates synchronously. The first ratchet block 68 and the third spring 681 cooperate to restrict the one-way rotation of the ratchet gear 67 and the impeller 66. During this process, the second ball valve 65 in the outlet pipe 612 on the other side of the air guide chamber 61 is pushed open by the air flow, compressing the second spring 651 and allowing the high-pressure gas to enter the storage air bag 64.

[0054] At the same time, the impeller 66 synchronously drives the rotating wheel 72 coaxially mounted therewith to rotate, starting the gas production component 7. The rotating wheel 72 is provided with a plurality of transport bins 721. When it is aligned with the feed port of the storage barrel 74, the sodium bicarbonate particles inside the storage barrel 74 fall into the transport bin 721 by gravity, and are then transported to the top of the discharge port by the transport bin 721. Under the cooperation of the second ratchet block 73 and the return spring 731, the flip plate 75 is pushed open, and the sodium bicarbonate is put into the lower cavity of the reaction bin 76 to complete the feeding process. The deeper the water depth, the more gas is compressed in the storage air bag 64, the more circles the impeller 66 drives the rotating wheel 72 to rotate, and the more sodium bicarbonate is added to the reaction bin 76.

[0055] To assist in positioning, a high-brightness LED underwater light identification chamber 911 is installed on the outside of the air guide chamber 61, which can emit a stroboscopic blue light to improve the rescue recognition rate in complex water environments;

[0056] 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.

[0057] 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 rescue vessel, comprising a rescue vessel body (1), characterized in that: The rescue boat body (1) is welded to an outer wall of a mounting steel frame (11), and air cushions (2) for sliding on ice are fixedly installed on both left and right sides of the mounting steel frame (11). An engine (3) is fixedly installed at the rear end of the mounting steel frame (11), and a propeller blade (31) for providing power is coaxially fixedly installed on the output shaft of the engine (3). The front end of the mounting steel frame (11) is rotatably connected to a roller (4), and 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 fixedly installed with a reduction motor (41). The ends of the rescue rope are respectively fixedly connected to a safety hook (5) and a sensing component (6) for underwater rescue. The sensing component (6) includes an air guide chamber (61), and a gas production component (7) is installed on the rear end surface of the air guide chamber (61). The outer wall of the gas production component (7) is connected to a floating air bag (8) for helping underwater personnel to float quickly. The outer wall of the air guide chamber (61) is fixedly installed with a trigger component (9); An air inlet pipe (611) is provided on the outer wall of the air guide chamber (61), and a sensing air bag (62) is coaxially fixedly connected to 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), and a storage air bag (64) is coaxially fixedly connected to the end of the air outlet pipe (612); An impeller (66) is rotatably connected inside the air guide bin (61), and the front and rear walls of the impeller (66) respectively abut against the front and rear inner walls of the air guide bin (61). The rotating shaft of the impeller (66) passes through the front side wall of the air guide bin (61) and is coaxially fixedly connected to 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 mounted on the top surface of the extension plate, one end of the extension plate of the third spring (681) is fixedly connected to a first ratchet block (68), and the first ratchet block (68) is engaged with the ratchet gear (67); The gas production component (7) comprises a rotating chamber (71), and the inner wall of the rotating chamber (71) is rotatably connected to a rotating wheel (72); The outer wall of the rotating bin (71) is provided with a feed port and a discharge port, respectively. A storage barrel (74) is coaxially fixedly mounted at the feed port, and sodium bicarbonate particles are stored in the storage barrel (74). A reaction bin (76) is fixedly mounted on the bottom surface of the discharge port. A plurality of transport bins (721) are equidistantly arranged on the outer wall of the rotating wheel (72). The inner wall of the discharge port of the rotating bin (71) is hinged with a flip plate (75), the outer wall of the rotating wheel (72) is equidistantly provided with a plurality of receiving grooves (722), and the interiors of the plurality of receiving grooves (722) are all slidably connected to a second ratchet block (73); 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 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 provided on the outer wall of the lower cavity of the reaction chamber (76) near the top, and the floating air bag (8) is coaxially fixedly connected to the connecting pipe.

2. The thin ice rescue vessel according to claim 1, characterized in that: A first ball valve (63) is slidably mounted inside the air inlet pipe (611), and a first spring (631) is fixedly connected to the outer wall of the first ball valve (63). A second ball valve (65) is slidably mounted inside the air outlet pipe (612), and a second spring (651) is fixedly connected to the outer wall of the second ball valve (65).

3. The thin ice rescue vessel according to claim 2, characterized in that: The rotating chamber (71) is coaxially fixedly mounted on the rear end surface of the air guide chamber (61) by means of bolts. The outer wall size of the rotating wheel (72) matches the inner wall size of the rotating chamber (71). The rotating wheel (72) is coaxially fixedly connected to the impeller (66).

4. The thin ice rescue vessel according to claim 3, characterized in that: A torsion spring is installed between the rotating shaft of the flip plate (75) and the inner wall of the discharge port, and a return spring (731) is sandwiched between the bottom surface of the second ratchet block (73) and the inner bottom surface of the receiving groove (722).

5. The thin ice rescue vessel according to claim 1, characterized in that: The trigger assembly (9) comprises a polished rod (91), the top end of the polished rod (91) being fixedly mounted on the outer wall of the air guide chamber (61), the bottom end of the polished rod (91) being fixedly mounted with an identification chamber (911), a safety cylinder (921) being coaxially fixedly mounted on the outer wall of the polished rod (91), and a trigger cylinder (92) being coaxially slidably mounted on the outer wall of the polished rod (91).

6. The thin ice rescue vessel according to claim 5, characterized in that: A trigger rope (93) is fixedly connected to the outer wall of the trigger cylinder (92), and 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