CN110789693B

CN110789693B - Heat supply type life buoy

Info

Publication number: CN110789693B
Application number: CN201911229090.0A
Authority: CN
Inventors: 盛杰; 杜柏松; 申超男; 颜俊杰; 刘然; 朱保纪; 陈元贵
Original assignee: Zhejiang Ocean University ZJOU
Current assignee: Zhejiang Ocean University ZJOU
Priority date: 2019-12-04
Filing date: 2019-12-04
Publication date: 2023-07-14
Anticipated expiration: 2039-12-04
Also published as: CN110789693A

Abstract

The invention belongs to the technical field of life-saving equipment, and relates to a heat supply type life buoy. The invention comprises a life buoy body, wherein a mounting groove is formed in the upper side surface of the life buoy body, an air duct is arranged in the mounting groove, a filler is arranged between the air duct and the inner wall of the mounting groove, and the mounting groove is divided into a heating cavity and a condensing cavity by the filler; one end of the air duct extends into the heating cavity, the end part of the air duct is provided with an air duct one-way air inlet valve, and the other end extends into the condensing cavity; a contraction air bag is arranged in the heating cavity, and is connected with an expansion air bag in the heating cavity; a heating mechanism capable of heating air is arranged in the heating cavity; the life buoy body is provided with an air pipe; one end of the air pipe extends out of the life buoy body, the other end extends into the heating cavity, and an air pipe one-way air inlet valve is arranged on the air pipe; the condensing cavity is communicated with the outside air through an exhaust pipe, and an exhaust one-way valve is arranged on the exhaust pipe; the upper side edge of the mounting groove is covered with a heat transfer plate. The invention has the advantages that: effectively provides heat for human body and avoids low temperature of human body.

Description

Heat supply type life buoy

Technical Field

The invention belongs to the technical field of life-saving equipment, and relates to a heat supply type life buoy.

Background

A life buoy is a water life-saving device, which can help people who cannot swim float on the water surface in critical situations and cannot sink into the water. The life buoy is in the shape of a ring, wherein one life buoy is manufactured by adopting high-density polystyrene as a shell, and high-density polyurethane closed-cell foam plastic is filled in the body. However, when the life-saving effect is generated by the swim ring in the case of drowning danger, the body can absorb the heat of the body by the seawater in the seawater, the temperature of the body is reduced to a critical point, once the body temperature is below 27 ℃, the muscles lose control, the symptoms are coma or spasm, and many people in distress in the seawater are not dead due to choking, but life is endangered due to losing temperature caused by serious temperature reduction caused by cooling of the seawater when the swim ring falls into the water, so that the swim ring capable of heating in the water is needed to increase the survival rate of people falling into the water.

Disclosure of Invention

The invention aims at solving the problems in the prior art, and provides a heat supply type life buoy, which aims at solving the technical problems that: how to make the life buoy provide heat for the human body, and avoid the low temperature of the human body.

The invention is realized by the following technical scheme: a heated life buoy comprising a life buoy body, and comprising:

the mounting groove is formed in the upper side face of the life buoy body, an air duct is arranged in the mounting groove, a filler is arranged between the air duct and the inner wall of the mounting groove, and the mounting groove is divided into a heating cavity and a condensing cavity by the filler; one end of the air duct extends into the heating cavity, the end part of the air duct is provided with an air duct unidirectional air inlet valve, and the other end of the air duct extends into the condensing cavity; a contraction air bag is arranged in the heating cavity, and is connected with an expansion air bag arranged on the inner side wall of the life buoy body through a vent pipe; a heating mechanism capable of heating air is arranged in the heating cavity; the life buoy comprises a life buoy body, wherein the life buoy body is provided with an air pipe, one end of the air pipe extends out of the life buoy body, the other end of the air pipe extends into a heating cavity, and the air pipe is provided with an air pipe one-way air inlet valve; the condensing cavity is communicated with the outside air through an exhaust pipe, and an exhaust one-way valve is arranged on the exhaust pipe; the upper side edge of the mounting groove is covered with a heat transfer plate.

In the above-mentioned heat-supply type life buoy, the air duct is connected with the heat transfer plate via the heat conduction portion.

In the above-mentioned heating type life buoy, the heating mechanism includes a semiconductor refrigerator, the condensation cavity is located under the heating cavity, and the semiconductor refrigerator is mounted on the filler between the heating cavity and the condensation cavity; the semiconductor refrigerator is provided with a semiconductor refrigerator hot end and a semiconductor refrigerator cold end, the semiconductor refrigerator hot end stretches into the heating cavity, and the semiconductor refrigerator hot end is connected with a radiating fin; the cold end of the semiconductor refrigerator stretches into the condensation cavity, the cold end of the semiconductor refrigerator is connected with a heat absorption sheet, and a drain pipe is arranged in the life buoy body; one end of the drain pipe is connected with the bottom of the condensation cavity, and the other end of the drain pipe extends out of the life buoy body; the semiconductor refrigerator is electrically connected with a storage battery arranged in the life buoy body.

In the above-mentioned heat supply type life buoy, the life buoy body is provided with the water storage tank, the water storage tank is located the condensation chamber below, the water storage tank has the water suction pipe, the tip of water suction pipe and the tip detachable connection that the drain pipe stretches out the life buoy body.

In the above-mentioned heat-supply type life buoy, the cross section of the condensation cavity is semicircular.

In the above-mentioned heat-supply life buoy, the material for making the filling material is EPO foam plastic.

In the above-mentioned heat supply formula life buoy, this internal vertical generator installation shell that is provided with of life buoy, generator installation shell downside and life buoy body downside parallel and level and have the opening on the generator installation shell downside, be provided with the generator in the generator installation shell, the tip of generator output shaft stretches out outside the opening and coaxial set firmly the impeller on the tip, the generator is connected with the battery electricity.

In the above-mentioned heat supply type life buoy, a protecting shell is arranged on the outer wall of the generator, and two positioning grooves are respectively arranged on the outer walls of the left side and the right side of the protecting shell along the length direction; a telescopic rod shell is vertically and fixedly arranged on the left inner wall and the right inner wall of the generator installation shell, a telescopic rod is arranged on each telescopic rod shell in a sliding manner in a left-right manner, the outer end of each telescopic rod extends out of the corresponding telescopic rod shell, and the inner end of each telescopic rod extends into the corresponding telescopic rod shell; a compression spring is arranged in the telescopic rod shell; one end of the compression spring is propped against the bottom of the telescopic rod shell, and the other end of the compression spring is propped against the inner end of the telescopic rod; the upper side edge of the protective shell is provided with a convex edge, the convex edge is positioned above the telescopic rod shell, and the convex edge is arranged in the generator installation shell in a vertical sliding way; the size of the cross section of the opening is larger than the diameter of the impeller; when the convex edge slides up and down, the outer end of the telescopic rod can be propped against the bottom of the positioning groove at the same side under the action of the compression spring.

In the above-mentioned heat supply type life buoy, the connecting band that connects end to end is connected with through connecting rope on the life buoy body medial surface, be provided with the gasbag on the connecting band, be provided with the compressed air bottle on the connecting band, the compressed air bottle gas-supply pipe links to each other with the intake pipe of gasbag.

In the above-mentioned heat supply type life buoy, the expansion airbag is fixedly provided with a support plate, and the support plate is connected with the connecting belt through a hinge.

Compared with the prior art, the life buoy has the following advantages:

1. the heating mechanism heats and raises the temperature of the air in the heating cavity. When the human body and the life buoy body float up and down in water, the human body and the life buoy body move relatively, so that the expansion air bag is extruded. At this time, the volume of the inflatable balloon is reduced, and the gas in the inflatable balloon is discharged into the deflating balloon through the vent tube, so that the deflating balloon is inflated and the volume is increased. The contracting bladder compresses the air in the heating chamber, increasing the air pressure in the heating chamber, and the air generates more heat after being compressed. At this time, the air pressure in the heating chamber is greater than the air pressure in the condensing chamber, which causes the warmed air in the heating chamber to enter the air duct through the air duct one-way intake valve and finally to be discharged into the condensing chamber. When the heated air flows in the air duct, heat is transferred to the human body through the heat transfer plate, so that heat is supplied to the human body. And the air in the condensation cavity is discharged out of the life buoy body through the exhaust one-way valve and the exhaust pipe. When the human body is far away from the expansion air bag, the external pressure born by the expansion air bag is reduced, and the air pressure in the contraction air bag is larger than the air pressure in the expansion air bag at the moment. The gas in the contracted air bag enters the expanded air bag through the vent pipe, and the expanded air bag gradually restores the initial volume. At this time, the air pressure in the heating chamber is reduced and is smaller than the external air pressure. External air enters the heating cavity through the air pipe and the air pipe one-way air inlet valve and is heated by the heating mechanism.

In the above process, the setting of inflation gasbag, breather pipe and shrink gasbag converts the kinetic energy that produces when human body and life buoy body relative motion into the energy that drives external air inflow heating chamber and the air in the heating chamber to get into in the air duct, makes the air flow between heating chamber, air duct and condensation chamber automatically to in time, fast, effectively transmit the heat that heating mechanism produced to the heat transfer plate through the air, and guarantee that the heat transfer plate gives the human body heat supply with comparatively stable temperature.

2. The hot end of the semiconductor refrigerator heats air in the heating cavity through the radiating fin, so that the air temperature is increased; the cold end of the semiconductor refrigerator absorbs the heat of the air in the condensing cavity through the heat absorbing sheet, so that water vapor in the air is liquefied on the heat absorbing sheet and liquid water is formed. The water on the heat absorbing sheet drops on the bottom of the condensing cavity under the action of gravity. The outside air is driven by the expansion air bag, the vent pipe and the contraction air bag to enter the heating cavity, so that the air in the condensing cavity is continuously replaced, and liquid water is gradually accumulated on the bottom of the condensing cavity. When the human body lacks moisture, the water in the liquid state on the bottom of the condensation cavity is absorbed through the drain pipe, so that the water is supplemented for the human body. The structure can provide heat for human body and store fresh water, thereby maintaining the temperature of human body and providing fresh water resource, and greatly improving the safety of human body.

3. The life buoy body floats on the water surface, and the impeller is immersed in the water. The water flow impacts the impeller, the impeller drives the generator to generate electricity, and the electric energy generated by the generator is stored in the storage battery. The structure converts kinetic energy of the water body into electric energy, realizes self-power supply of the life buoy and provides continuous electric energy for the semiconductor refrigerator.

4. When the life buoy is not used, the front ends of the left telescopic rod and the right telescopic rod are respectively propped against a positioning groove close to the lower side face of the protective shell under the action of respective compression springs, so that the generator is fixed in the generator installation shell, and the generator and the impeller are both positioned in the generator installation shell at the moment, so that the impeller is protected. When the life buoy is used, the protecting shell moves downwards, the impeller extends out of the opening, the convex edge is propped against the telescopic rod shell, the front ends of the left telescopic rod and the right telescopic rod are respectively propped against the positioning groove close to the upper side face of the protecting shell under the action of respective compression springs, and therefore the generator is fixed in the generator mounting shell, and the generator is helped to generate electricity.

5. The switch of the compressed air bottle is turned on, high-pressure gas in the compressed air bottle is discharged into the air bag, and the air bag expands and the volume is increased, so that the integral buoyancy of the life buoy is greatly improved. Simultaneously, the human body is located in the gasbag, and when human body and life buoy body take place relative motion, the human body makes two inflation gasbags receive compression and tensile through gasbag and connecting band, further improves the ventilation effect of outside air, heating intracavity air.

Drawings

Fig. 1 is a cross-sectional view of the structure of the present invention.

Fig. 2 is a cross-sectional view of the structure at A-A in fig. 1.

Fig. 3 is a cross-sectional view of the structure at B-B in fig. 2.

Fig. 4 is a partial enlarged view at C in fig. 2.

Fig. 5 is a partial enlarged view at D in fig. 2.

Fig. 6 is a partial enlarged view at E in fig. 1.

FIG. 7 is a schematic view of the structure of the present invention when the balloon is inflated.

In the figure, 1, a life buoy body; 11. a mounting groove; 111. a heating chamber; 112. a condensing chamber; 113. a heat transfer plate; 114. concave shoulders of the heat transfer plates; 12. a battery mounting groove; 121. a battery cover plate; 13. a water storage tank mounting groove; 131. concave shoulder of water storage tank cover plate; 132. a fixed hook groove; 2. a semiconductor refrigerator; 21. a hot end of the semiconductor refrigerator; 211. a heat sink; 22. cold end of semiconductor refrigerator; 221. a heat absorbing sheet; 23. an air duct; 231. one-way air inlet valve of air duct; 232. a heat conduction part; 24. an exhaust pipe; 241. an exhaust check valve; 25. inflating the balloon; 26. a vent pipe; 27. deflating the balloon; 28. an air pipe; 281. one-way air inlet valve of air pipe; 3. a storage battery; 4. a generator; 41. an impeller; 411. a convex edge; 42. a protective shell; 421. a positioning groove; 43. a generator mounting case; 431. an opening; 5. a telescopic rod housing; 51. a telescopic rod; 52. a compression spring; 6. a filler; 7. an air bag; 71. a connecting belt; 72. a compressed air bottle; 73. a connecting rope; 74. a hinge; 75. a support plate; 8. a water storage tank; 81. a drain pipe; 82. a water suction pipe; 820. a water storage tank cover plate; 821. a fixed hook; 83. a hinge shaft; 84. a handle.

Detailed Description

The following are specific embodiments of the present invention and the technical solutions of the present invention will be further described with reference to the accompanying drawings, but the present invention is not limited to these embodiments.

Referring to fig. 1 to 7, a heat supply type life buoy includes a life buoy body 1, and further includes:

the two mounting grooves 11 are respectively formed on the upper side surface of the life buoy body 1, and the two mounting grooves 11 are symmetrically arranged on the central axis of the life buoy body 1; an air duct 23 is arranged in the mounting groove 11, a filling material 6 is arranged between the air duct 23 and the inner wall of the mounting groove 11, and the filling material 6 divides the mounting groove 11 into a heating cavity 111 and a condensing cavity 112; one end of the air duct 23 extends into the heating cavity 111, the end part of the air duct is provided with an air duct unidirectional air inlet valve 231, and the other end of the air duct 23 extends into the condensing cavity 112; a shrinkage air bag 27 is arranged in the heating cavity 111, and the shrinkage air bag 27 is connected with an expansion air bag 25 arranged on the inner side wall of the life buoy body 1 through a vent pipe 26; a heating mechanism capable of heating air is further arranged in the heating cavity 111; an air pipe 28 is arranged on the life buoy body 1, one end of the air pipe 28 extends out of the life buoy body 1, the other end of the air pipe 28 extends into the heating cavity 111, and an air pipe unidirectional air inlet valve 281 is arranged on the air pipe 28; the condensation chamber 112 is communicated with the outside air through an exhaust pipe 24, and an exhaust one-way valve 241 is arranged on the exhaust pipe 24; the upper side edge of the mounting groove 11 is provided with a heat transfer plate concave shoulder 114, and the heat transfer plate 113 is fixed on the bottom of the heat transfer plate concave shoulder 114 through bolts and nuts.

When the life buoy is used, the heating mechanism is started. The heating mechanism heats and raises the temperature of the air in the heating chamber 111. When the human body and the life buoy body 1 float up and down in water, the human body and the life buoy body 1 move relatively, so that the inflatable air bags 25 are extruded. At this time, the volume of the inflatable bag 25 is reduced, and the gas in the inflatable bag 25 is discharged into the deflating bag 27 through the vent pipe 26, so that the deflating bag 27 is inflated and the volume is increased. The deflating bladder 27 compresses the air in the heating chamber 111, increasing the air pressure in the heating chamber 111, and the air is compressed to generate more heat. At this time, the air pressure in the heating chamber 111 is greater than the air pressure in the condensing chamber 112, which causes the warmed air in the heating chamber 111 to enter the air duct 23 through the air duct one-way intake valve 231 and finally to be discharged into the condensing chamber 112. When the heated air flows in the air duct 23, heat is transferred to the human body through the heat transfer plate 113, thereby supplying heat to the human body. And the air in the condensation chamber 112 is discharged out of the life buoy body 1 through the exhaust check valve 241 and the exhaust pipe 24.

When the human body moves away from the inflatable bladder 25, the external pressure applied to the inflatable bladder 25 decreases and the air pressure in the deflating bladder 27 is greater than the air pressure in the inflatable bladder 25 at that moment. The gas in the deflating bladder 27 enters the inflating bladder 25 through the vent tube 26, and the inflating bladder 25 gradually returns to its original volume. At this time, the air pressure in the heating chamber 111 is reduced and smaller than the external air pressure. Ambient air enters the heating chamber 111 through the air pipe 28 and the air pipe one-way intake valve 281 and is heated by the heating mechanism.

In the above process, the arrangement of the expansion airbag 25, the vent pipe 26 and the contraction airbag 27 converts kinetic energy generated when the human body moves relative to the life buoy body 1 into energy for driving the outside air to flow into the heating cavity 111 and the air in the heating cavity 111 to be discharged into the air guide pipe 23, so that the air automatically flows among the heating cavity 111, the air guide pipe 23 and the condensation cavity 112, thereby timely, quickly and effectively transmitting the heat generated by the heating mechanism to the heat transfer plate 113 through the air, and ensuring that the heat transfer plate 113 supplies heat to the human body at a relatively stable temperature. The provision of the heat transfer plate 113 contributes to heating the human body on the one hand and seals the opening of the installation groove 11 via the sealing ring on the other hand, thereby ensuring that outside water does not flow into the installation groove 11 and preventing air in the heating chamber 111 from leaking, ensuring an airtight effect of the heating chamber 111.

Specifically, the air duct 23 is connected to the heat transfer plate 113 via a heat conducting portion 232.

The heat conducting part 232 is made of aluminum, and the heat conducting part 232 is arranged to facilitate the heat in the air duct 23 to be transferred to the heat transfer plate 113, so that the heat transfer efficiency is improved.

Specifically, the heating mechanism comprises a semiconductor refrigerator 2, the condensation cavity 112 is positioned right below the heating cavity 111, the semiconductor refrigerator 2 is arranged on the filling 6 between the heating cavity 111 and the condensation cavity 112, and the semiconductor refrigerator 2 is provided with a semiconductor refrigerator hot end 21 and a semiconductor refrigerator cold end 22; the semiconductor refrigerator hot end 21 extends into the heating cavity 111, and the semiconductor refrigerator hot end 21 is connected with a radiating fin 211; the cold end 22 of the semiconductor refrigerator extends into the condensation cavity 112, the cold end 22 of the semiconductor refrigerator is connected with a heat absorbing sheet 221, and a drain pipe 81 is arranged in the life buoy body 1; one end of the drain pipe 81 is connected with the bottom of the condensation cavity 112, and the other end extends out of the life buoy body 1; the semiconductor refrigerator 2 is electrically connected to a battery 3 provided in the life buoy body 1.

The hot end 21 of the semiconductor refrigerator heats the air in the heating cavity 111 through the radiating fins 211, so that the air temperature is increased; the cold end 22 of the semiconductor refrigerator absorbs heat in the air in the condensation chamber 112 through the heat absorbing sheet 221, so that water vapor in the air is liquefied on the heat absorbing sheet 221 and forms liquid water. The water on the heat absorbing sheet 221 drops on the bottom of the condensation chamber 112 by gravity. The outside air is driven by the expansion bladder 25, the vent tube 26 and the contraction bladder 27 into the heating chamber 111, which causes the air in the condensing chamber 112 to be replaced and liquid water to gradually accumulate at the bottom of the condensing chamber 112.

When the human body lacks moisture, the water in a liquid state on the bottom of the condensation chamber 112 is absorbed through the drain pipe 81, thereby supplementing the human body with moisture. The structure can provide heat for human body and store fresh water, thereby maintaining the temperature of human body and providing fresh water resource, and greatly improving the safety of human body.

Specifically, the water storage tank 8 is arranged on the life buoy body 1, the water storage tank 8 is positioned below the condensation cavity 112, the water storage tank 8 is provided with a water suction pipe 82, and the end part of the water suction pipe 82 is detachably connected with the end part of the water discharge pipe 81 extending out of the life buoy body 1.

The water storage tank 8 is provided to help store water in a liquid state on the bottom of the condensation chamber 112 in the water storage tank 8 and to facilitate absorption of water by a human body. When the human body needs to be supplemented with water, the water suction pipe 82 is pulled out from the water discharge pipe 81, and the water in the water storage tank 8 is absorbed by the water suction pipe 82 to supplement the water to the human body.

Further, the life buoy body 1 is provided with a water storage tank mounting groove 13, the water storage tank 8 is mounted in the water storage tank mounting groove 13, the opening edge of the water storage tank mounting groove 13 is provided with a water storage tank cover plate concave shoulder 131, the bottom of the water storage tank cover plate concave shoulder 131 is hinged with a water storage tank cover plate 820 through a hinge shaft 83, the bottom of the water storage tank cover plate concave shoulder 131 is provided with a fixing hook groove 132, the inner wall of the water storage tank cover plate 820 is fixedly provided with a fixing hook 821, the fixing hook 821 corresponds to the fixing hook groove 132, and when the water storage tank cover plate 820 rotates around the hinge shaft 83 and is covered on the bottom of the water storage tank cover plate concave shoulder 131, the fixing hook 821 stretches into the fixing hook groove 132, so that the water storage tank cover plate 820 is fixed in the water storage tank cover plate concave shoulder 131. The handle 84 is fixedly arranged on the outer wall of the water storage tank cover plate 820.

The provision of the reservoir mounting groove 13 facilitates the mounting of the reservoir 8. And the provision of the cistern cover plate 820 helps seal the opening of the cistern mounting groove 13. External water is prevented from entering the reservoir mounting groove 13.

Specifically, the cross section of the condensation chamber 112 is semicircular.

This configuration helps liquid water collect on the bottom of the condensation chamber 112.

The fixing hook 821 is disengaged from the fixing hook groove 132, i.e., opens the opening of the tank installation groove 13, by rotating the tank cover 820 upward about the hinge shaft 83 by the handle 84; and the water storage tank cover plate 820 is rotated downward about the hinge shaft 83, and the fixing hooks 821 are inserted into the fixing hook grooves 132 so that the water storage tank cover plate 820 is covered on the bottom of the water storage tank cover plate concave shoulder 131, thereby sealing the opening of the water storage tank mounting groove 13. The structure is simple to operate.

Specifically, the filler 6 is made of EPO foam.

EPO foams are readily available on the market and are inexpensive. Meanwhile, the EPO foam plastic is easy to process, the EPO foam plastic is easy to wrap the air duct 23, the heat preservation effect of the EPO foam plastic is excellent, and the heat in the air duct 23 is only transferred to the heat transfer plate 113 through the heat conducting part 232, so that the heat utilization efficiency of the hot end 21 of the semiconductor refrigerator is further improved.

Specifically, a generator mounting shell 43 is vertically arranged in the life buoy body 1, the lower side surface of the generator mounting shell 43 is flush with the lower side surface of the life buoy body 1, an opening 431 is formed in the lower side surface of the generator mounting shell 43, a generator 4 is arranged in the generator mounting shell 43, the end part of an output shaft of the generator 4 extends out of the opening 431, an impeller 41 is coaxially and fixedly arranged on the end part of the output shaft of the generator 4, and the generator 4 is electrically connected with the storage battery 3.

The life buoy body 1 floats on the water surface, and the impeller 41 is immersed in the water. The water flow impacts the impeller 41, the impeller 41 drives the generator 4 to generate electricity, and the electric energy generated by the generator 4 is stored in the storage battery 3.

The structure converts kinetic energy of the water body into electric energy, realizes self-power supply of the life buoy and provides continuous electric energy for the semiconductor refrigerator 2.

Further, a battery mounting groove 12 is formed in the upper side surface of the life buoy body 1, and the battery 3 is mounted on the bottom of the battery mounting groove 12; the upper side edge of the battery mounting groove 12 is fixed with a battery cover plate 121 by bolts and nuts.

This structure helps to install the battery 3, preventing the battery 3 from being soaked with outside water.

Specifically, a protecting shell 42 is disposed on the outer wall of the generator 4, and two positioning slots 421 are respectively disposed on the outer walls of the left and right sides of the protecting shell 42 along the length direction; a telescopic rod housing 5 is vertically and fixedly arranged on the left and right inner walls of the generator mounting shell 43, a telescopic rod 51 is arranged on each telescopic rod housing 5 in a left and right sliding mode, the outer end of each telescopic rod 51 extends out of the corresponding telescopic rod housing 5, and the inner end of each telescopic rod 51 extends into the corresponding telescopic rod housing 5; a compression spring 52 is arranged in the telescopic rod shell 5; one end of the compression spring 52 is propped against the bottom of the telescopic rod shell 5, and the other end of the compression spring is propped against the inner end of the telescopic rod 51; the upper side edge of the protective shell 42 is provided with a convex edge 411, the convex edge 411 is positioned above the telescopic rod shell 5, and the convex edge 411 is arranged in the generator mounting shell 43 in a vertical sliding way; the size of the cross section of the opening 431 is larger than the diameter of the impeller 41; when the convex edge 411 slides up and down, the outer end of the telescopic rod 51 can be pressed against the bottom of the positioning groove 421 at the same side under the action of the pressing spring 52.

When the life buoy is not in use, the front ends of the left and right telescopic rods 51 respectively press in a positioning groove 421 close to the lower side surface of the protecting shell 42 under the action of respective compression springs 52, so that the generator 4 is fixed in the generator mounting shell 43, and at the moment, the generator 4 and the impeller 41 are both positioned in the generator mounting shell 43, so that the impeller 41 is protected.

When the life buoy is used, the protecting shell 42 is moved downwards, the impeller 41 extends out of the opening 431, the convex edge 411 is propped against the telescopic rod shell 5, the front ends of the left telescopic rod 51 and the right telescopic rod 51 are respectively propped against the positioning groove 421 close to the upper side face of the protecting shell 42 under the action of the respective compression springs 52, and therefore the generator 4 is fixed in the generator mounting shell 43, and the generator 4 is helped to generate electricity.

Specifically, a connecting belt 71 connected end to end is connected to the inner side surface of the life buoy body 1 through a connecting rope 73, an air bag 7 is arranged on the connecting belt 71, a compressed air bottle 72 is arranged on the connecting belt 71, and an air pipe of the compressed air bottle 72 is connected with an air inlet pipe of the air bag 7.

The switch of the air bottle 72 is turned on, high-pressure air in the air bottle 72 is discharged into the air bag 7, and the air bag 7 is expanded and the volume is increased, so that the overall buoyancy of the life buoy is greatly improved. Meanwhile, when the human body is positioned in the air bag 7 and the human body and the life buoy body 1 relatively move, the human body compresses and stretches the two expansion air bags 25 through the air bag 7 and the connecting belt 71, so that the ventilation effect of the outside air and the air in the heating cavity 111 is further improved.

Specifically, a support plate 75 is fixed on the inflatable airbag 25, and the support plate 75 is connected to the connection strap 71 via a hinge 74.

The provision of the support plate 75 assists the balloon 7 in squeezing and stretching the inflated balloon 25.

The specific embodiments described herein are offered by way of example only to illustrate the spirit of the invention. Those skilled in the art may make various modifications or additions to the described embodiments or substitutions thereof without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Claims

1. A heat supply type life buoy, comprising a life buoy body (1), characterized in that it further comprises:

the device comprises at least one mounting groove (11), wherein the mounting groove (11) is formed in the upper side face of a life buoy body (1), an air duct (23) is arranged in the mounting groove (11), a filling material (6) is arranged between the air duct (23) and the inner wall of the mounting groove (11), and the filling material (6) divides the mounting groove (11) into a heating cavity (111) and a condensing cavity (112); one end of the air duct (23) extends into the heating cavity (111), the end part of the air duct is provided with an air duct one-way air inlet valve (231), and the other end of the air duct (23) extends into the condensing cavity (112); a shrinkage air bag (27) is arranged in the heating cavity (111), and the shrinkage air bag (27) is connected with an expansion air bag (25) arranged on the inner side wall of the life buoy body (1) through a vent pipe (26); a heating mechanism capable of heating air is further arranged in the heating cavity (111); an air pipe (28) is arranged on the life buoy body (1), one end of the air pipe (28) extends out of the life buoy body (1), the other end of the air pipe (28) extends into the heating cavity (111), and an air pipe one-way air inlet valve (281) is arranged on the air pipe (28); the condensing cavity (112) is communicated with the outside air through an exhaust pipe (24), and an exhaust one-way valve (241) is arranged on the exhaust pipe (24); a heat transfer plate (113) is covered on the upper side edge of the mounting groove (11);

the air duct (23) is connected with the heat transfer plate (113) through a heat conducting part (232);

the heating mechanism comprises a semiconductor refrigerator (2), the condensation cavity (112) is positioned right below the heating cavity (111), and the semiconductor refrigerator (2) is arranged on the filling material (6) between the heating cavity (111) and the condensation cavity (112); the semiconductor refrigerator (2) is provided with a semiconductor refrigerator hot end (21) and a semiconductor refrigerator cold end (22), the semiconductor refrigerator hot end (21) stretches into the heating cavity (111), and the semiconductor refrigerator hot end (21) is connected with a radiating fin (211); the cold end (22) of the semiconductor refrigerator stretches into the condensation cavity (112), the cold end (22) of the semiconductor refrigerator is connected with a heat absorption sheet (221), and a drain pipe (81) is arranged in the life buoy body (1); one end of the drain pipe (81) is connected with the bottom of the condensation cavity (112), and the other end extends out of the life buoy body (1); the semiconductor refrigerator (2) is electrically connected with a storage battery (3) arranged in the life buoy body (1);

be provided with water storage tank (8) on life buoy body (1), water storage tank (8) are located condensation chamber (112) below, water storage tank (8) have water suction pipe (82), the tip that water suction pipe (82) and drain pipe (81) stretch out life buoy body (1) outer tip and can dismantle and be connected.

2. A heat-supplying life buoy according to claim 1, characterized in that the cross section of the condensation chamber (112) is semi-circular.

3. A heat-supplying life buoy according to claim 2, characterized in that the filler (6) is made of EPO foam.

4. A heat supply type life buoy according to any one of claims 1-3, wherein a generator mounting shell (43) is vertically arranged in the life buoy body (1), the lower side surface of the generator mounting shell (43) is flush with the lower side surface of the life buoy body (1), an opening (431) is formed in the lower side surface of the generator mounting shell (43), a generator (4) is arranged in the generator mounting shell (43), the end part of an output shaft of the generator (4) extends out of the opening (431), an impeller (41) is coaxially and fixedly arranged on the end part of the output shaft of the generator (4), and the generator (4) is electrically connected with a storage battery (3).

5. A heat supply type life buoy according to claim 4, wherein a protecting shell (42) is arranged on the outer wall of the generator (4), and two positioning grooves (421) are respectively arranged on the outer walls of the left side and the right side of the protecting shell (42) along the length direction; a telescopic rod housing (5) is vertically and fixedly arranged on the left inner wall and the right inner wall of the generator mounting housing (43), a telescopic rod (51) is arranged on each telescopic rod housing (5) in a sliding manner in a left-right manner, the outer end of each telescopic rod (51) extends out of the corresponding telescopic rod housing (5), and the inner end of each telescopic rod (51) extends into the corresponding telescopic rod housing (5); a compression spring (52) is arranged in the telescopic rod shell (5); one end of the compression spring (52) is propped against the bottom of the telescopic rod shell (5), and the other end of the compression spring is propped against the inner end of the telescopic rod (51); the upper side edge of the protective shell (42) is provided with a convex edge (411), the convex edge (411) is positioned above the telescopic rod shell (5), and the convex edge (411) is arranged in the generator mounting shell (43) in a vertical sliding way; the size of the cross section of the opening (431) is larger than the diameter of the impeller (41); when the convex edge (411) slides up and down, the outer end of the telescopic rod (51) can be propped against the bottom of the positioning groove (421) on the same side under the action of the compression spring (52).

6. A heat supply type life buoy according to any one of claims 1 to 3, wherein a connecting belt (71) connected end to end is connected to the inner side surface of the life buoy body (1) through a connecting rope (73), an air bag (7) is arranged on the connecting belt (71), a compressed air bottle (72) is arranged on the connecting belt (71), and an air pipe of the compressed air bottle (72) is connected with an air inlet pipe of the air bag (7).

7. A heat supplying type life buoy according to claim 6, wherein a supporting plate (75) is fixedly arranged on the inflatable air bag (25), and the supporting plate (75) is connected with the connecting belt (71) through a hinge (74).