CN113998079B

CN113998079B - Marine life saving equipment

Info

Publication number: CN113998079B
Application number: CN202111060305.8A
Authority: CN
Inventors: 范丁海; 苏玉香; 周智淘; 罗健锋; 锁华
Original assignee: Zhejiang Ocean University ZJOU
Current assignee: Zhejiang Ocean University ZJOU
Priority date: 2021-09-10
Filing date: 2021-09-10
Publication date: 2022-12-13
Anticipated expiration: 2041-09-10
Also published as: CN113998079A

Abstract

The invention provides a water life-saving device, and belongs to the technical field of life-saving equipment. The U-shaped floating body comprises an arc-shaped part and two straight parts, screen cloth is arranged in an opening of the U-shaped floating body, the second rotating shaft is horizontally and rotatably arranged between the rear ends of the two straight parts, the two first pushing mechanisms are arranged on the second rotating shaft, each first pushing mechanism comprises a circular pipe, a sliding block, a pedal plate and a swinging structure, the circular pipe is fixedly arranged on the second rotating shaft, a bottom plate is fixedly arranged at the rear end of the circular pipe, the sliding block is slidably arranged in the circular pipe, a return spring is fixedly connected between the rear end of the sliding block and the bottom plate, the pedal plate is hinged at the front end of the sliding block through a push rod, when the sliding block slides back and forth in the circular pipe, the swinging structure can swing up and down to push the U-shaped floating body to move forwards, and the auxiliary pushing mechanisms can assist in pushing the U-shaped floating body to move forwards. The invention can bring crews to move around, thereby improving the rescue efficiency.

Description

Marine life saving equipment

Technical Field

The invention belongs to the technical field of lifesaving equipment, and relates to a marine lifesaving device.

Background

Because of limited space, small fishing boats are not equipped with powered life-saving equipment, and usually only a few life buoys are placed on a deck.

When an accident occurs on the sea by a fishing boat, a crew takes the life buoy to escape, the life buoy is floated on the sea and swims around by means of self physical power, a plurality of crew swimming in different postures consume a large amount of physical power and only can move forward for a short distance, and finally the crew can only wait for rescue.

Disclosure of Invention

The invention aims to solve the problems in the prior art, and provides a marine life-saving device which can carry a crew to move around, reduce the physical consumption of the crew and improve the rescue efficiency.

The purpose of the invention can be realized by the following technical scheme:

a water life-saving device comprises a U-shaped floating body, wherein the U-shaped floating body comprises an arc-shaped part and two straight parts arranged at two ends of the arc-shaped part, and mesh cloth is arranged in an opening of the U-shaped floating body;

the second rotating shaft is horizontally and rotatably arranged between the rear ends of the two straight parts;

two first pushing mechanism, two first pushing mechanism all sets up on the second pivot, first pushing mechanism has: the circular tube is fixedly arranged on the second rotating shaft, the length direction of the circular tube is perpendicular to the axial direction of the second rotating shaft, and a bottom plate is fixedly arranged at the rear end of the circular tube; the sliding block is arranged in the round pipe in a sliding mode, and a return spring is fixedly connected between the rear end of the sliding block and the bottom plate; the pedal is hinged to the front end of the sliding block through a push rod; the swinging structure is arranged on the bottom plate and can push the U-shaped floating body to move forwards when the sliding block slides back and forth in the circular tube;

and the auxiliary pushing mechanism is arranged in the two straight portions and can assist in pushing the U-shaped floating body to move forwards.

In the above life saving device at sea, the swing structure comprises:

the fixed shaft is fixedly arranged on the bottom plate, and the axial direction of the fixed shaft is consistent with that of the second rotating shaft;

the first swinging plate is arranged at one end of the fixed shaft through a first linkage structure, and when the sliding block slides back and forth in the circular tube, the first linkage structure can drive the first swinging plate to swing up and down;

the second swinging plate is arranged at one end of the fixed shaft through a second linkage structure, when the sliding block slides back and forth in the circular tube, the second linkage structure can drive the second swinging plate to swing up and down, and the swinging directions of the second swinging plate and the first swinging plate are opposite all the time.

In the above life saving device at sea, the first linkage structure comprises:

the first rotating block is rotatably arranged at one end of the fixed shaft, the first rotating block is in an oblong shape, and the first swinging plate is fixedly connected to one end of the first rotating block through a first fixing rod;

one side, close to the first rotating block, of the circular tube is provided with a first sliding slot hole along the length direction, one end of the first supporting rod is fixedly arranged on the sliding block, the other end of the first supporting rod penetrates through the first sliding slot hole, and the end of the first supporting rod extends out of the circular tube;

the one end of first connecting rod articulates the one end of keeping away from first dead lever at first rotation block, the other end of first connecting rod is articulated with the one end that first bracing piece stretches out the pipe.

In the above life saving device at sea, the second linkage structure comprises:

the second rotating block is rotatably arranged at the other end of the fixed shaft, the second rotating block is in an oblong shape, and the second swinging plate is fixedly connected to one end of the second rotating block through a second fixed rod;

one side, close to the second rotating block, of the circular tube is provided with a second sliding slot hole along the length direction, one end of the second supporting rod is fixedly arranged on the sliding block, the other end of the second supporting rod penetrates through the second sliding slot hole, and the end of the second supporting rod extends out of the circular tube;

and one end of the second connecting rod is hinged to one end, far away from the second fixed rod, of the second rotating block, and the other end of the second connecting rod is hinged to one end, extending out of the circular tube, of the second supporting rod.

In the above life saving device on sea, the auxiliary pushing mechanism includes two auxiliary pushing structures, the two auxiliary pushing structures and the two straight portions are in one-to-one correspondence, and the auxiliary pushing structure includes;

the cavity is formed in the straight portion, a first through hole is formed in the tail end of the straight portion, a second through hole is formed in the bottom of the straight portion, and the first through hole and the second through hole are communicated with the cavity;

the storage battery is embedded in the straight part;

the paddle propeller is arranged in the cavity between the second through hole and the first through hole and is electrically connected with the storage battery;

the drainage structure is arranged at the bottom of the straight portion, and when the U-shaped floating body moves forwards, the drainage structure can drain water near the second through hole into the cavity.

In the above life saving device at sea, the drainage structure comprises:

one end of the water inlet pipe faces the arc-shaped part, the end part of the water inlet pipe is in an outward expanding horn shape, and the other end of the water inlet pipe is communicated with the second through hole;

and the guide plate is obliquely arranged in the cavity above the second through hole.

In the marine life saving equipment, the two back ends of the straight portions are provided with the drain pipes, the drain pipes are communicated with the first through holes, and the drain pipes are in an outward-expanding horn shape.

In the above life saving device on sea, further comprising a power generation mechanism, the power generation mechanism comprises:

the first rotating shaft is vertically and rotatably arranged on the arc-shaped part, and a rectangular block is arranged at the upper end of the first rotating shaft;

the sleeve is vertically and fixedly arranged on the upper side surface of the arc-shaped part and is coaxially arranged on the outer side of the first rotating shaft;

the lower end of the vertical rod is inserted into the sleeve, a rectangular blind hole is formed in the end part of the vertical rod, the rectangular blind hole is matched with the rectangular block, and two rotating blade plates are symmetrically arranged at the upper end of the vertical rod;

the generator, be equipped with the installation cavity in the arc portion, the generator sets firmly in the installation cavity, the generator is connected with first pivot transmission, the generator is connected with the battery electricity.

In the marine life-saving device, the side wall of the sleeve is provided with a horizontal sliding groove hole, a sliding rod is inserted into the horizontal sliding groove hole, the side wall of the lower end of the vertical rod is provided with an internal thread blind hole, the inner end of the sliding rod is provided with an external thread, when the vertical rod moves upwards to a position far away from the rectangular block, at least one position is provided, and the inner end of the sliding rod can rotate into the thread blind hole.

In the marine life saving device, the rescue lamp is fixedly arranged at the upper end of the vertical rod.

Compared with the prior art, the invention has the following advantages:

1. when an accident occurs to a fishing boat on the sea, a shipman throws the lifesaving device into the water, jumps into the water, climbs into the lifesaving device, lies on a mesh, places two feet on two pedals respectively, steps on the pedals backwards alternately to enable the sliding block in the circular tube to slide backwards, then retracts the feet forwards, enables the sliding block to slide forwards under the action of a return spring, pushes the U-shaped floating body to move forwards through a swinging structure, increases the forward moving distance of the U-shaped floating body as far as possible under limited physical force, and can push the U-shaped floating body to move forwards through an auxiliary pushing mechanism when the shipman stops for rest, so that the U-shaped floating body keeps moving continuously and the rescue time is shortened;

2. when the sliding block slides back and forth in the circular tube, the first swinging plate and the second swinging plate at the two ends of the fixed shaft are driven to swing up and down, and the first swinging plate and the second swinging plate can swing up and down in a reciprocating manner due to the fact that two feet step on the swinging plate alternately, so that the U-shaped floating body is pushed to move forward quickly, and meanwhile, the physical consumption of a shipman is reduced;

3. when the sliding block slides backwards, the first swinging plate rotates downwards under the action of the first connecting rod, when the sliding block slides forwards, the first swinging plate rotates upwards under the action of the first connecting rod, and the sliding block slides forwards and backwards to realize the up-and-down swinging of the first swinging plate and generate forward thrust;

4. when the sliding block slides backwards, the second swinging plate rotates upwards under the action of the second connecting rod, when the sliding block slides forwards, the second swinging plate rotates downwards under the action of the second connecting rod, and the sliding block slides forwards and backwards to realize the up-and-down swinging of the second swinging plate and generate forward thrust;

5. when the U-shaped floating body moves forwards, water near the second through hole is drained into the cavity through the drainage structure, the water inlet speed in the cavity is increased, meanwhile, the paddle propeller is started, the water entering the cavity is pushed out to the first through hole, and the moving speed of the U-shaped floating body is increased;

6. when the U-shaped floating body moves forwards, water flow enters the front end of the water inlet pipe and then enters the cavity through the second through hole, and under the action of the guide plate, the water directly flows to the rear end of the blade propeller, so that the power loss of the water flow is reduced; in addition, the front end of the flared shape can improve the speed of water flow entering the water inlet pipe and increase the thrust of the blade propeller;

7. when water in the cavity is discharged into the water discharge pipe through the first through hole, the flared water discharge pipe can increase the action area of the discharged water and improve the thrust of water flow;

8. when the rectangular block at the upper end of the first rotating shaft is inserted into the rectangular blind hole of the vertical rod, the two rotating vane plates and the vertical rod are pushed to rotate under the action of sea wind to drive the generator to generate electricity, and then the electricity is stored in the storage battery and used for the paddle propeller to increase the moving distance of the U-shaped floating body;

9. when the wind direction at sea is favorable for the U-shaped floating body to move forward, the vertical rod is lifted upwards, the rectangular block at the upper end of the first rotating shaft is far away from the rectangular blind hole, after the internal thread blind hole moves to the same height of the horizontal sliding groove hole, the inner end of the sliding rod is rotated into the internal thread blind hole, the sliding rod is rotated through the handle, the rotating vane plate on the vertical rod is opposite to the wind direction, the U-shaped floating body is pushed to move forward, and the moving speed of the U-shaped floating body is improved;

10. the rescue lamp on the vertical rod is turned on, so that nearby ships can find the person falling into the water in time in a dark environment, and the success rate of rescue is improved; in addition, the storage battery can continuously provide electric energy for the rescue lamp.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 isbase:Sub>A cross-sectional view taken at A-A of FIG. 1;

FIG. 3 is a cross-sectional view taken at B-B of FIG. 1;

FIG. 4 is an enlarged view of a portion of FIG. 3 at C;

FIG. 5 is a schematic structural view of the first and second swing plates;

FIG. 6 is a cross-sectional view taken at D-D of FIG. 5;

fig. 7 is a cross-sectional view at E-E in fig. 5.

In the figure: 1. a U-shaped floating body; 11. a straight portion; 111. a storage battery; 12. an arcuate portion; 121. a mounting cavity; 122. a generator; 123. a first rotating shaft; 124. a rectangular block; 13. a drain pipe; 14. a water inlet pipe; 15. a second rotating shaft; 16. screen cloth; 17. a cavity; 171. a first through hole; 172. a blade propeller; 173. a guide plate; 174. a second through hole; 2. a circular tube; 21. a base plate; 22. a first slide slot hole; 23. a second slide slot hole; 24. a slider; 241. a first support bar; 242. a first link; 243. a second support bar; 244. a second link; 25. a return spring; 26. a foot pedal; 261. a push rod; 3. a fixed shaft; 31. a first rotating block; 311. a first fixing lever; 312. a first swing plate; 32. a second turning block; 321. a second fixing bar; 322. a second swing lever; 4. a sleeve; 41. a horizontal sliding slot hole; 5. a vertical rod; 51. a blade rotating plate; 52. a rescue lamp; 53. an internal threaded blind hole; 54. a rectangular blind hole; 6. a slide bar; 61. and a limiting plate.

Detailed Description

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

As shown in fig. 1-7, a water life-saving device comprises a U-shaped floating body 1, a second rotating shaft 15, two first pushing mechanisms and an auxiliary pushing mechanism.

The U-shaped floating body 1 comprises an arc-shaped part 12 and two straight parts 11 arranged at two ends of the arc-shaped part 12, and a mesh cloth 16 is arranged in an opening of the U-shaped floating body 1.

The second rotating shaft 15 is horizontally rotatably provided between the rear ends of the two straight portions 11.

The two first pushing mechanisms are arranged on the second rotating shaft 15, and each first pushing mechanism comprises a circular tube 2, a sliding block 24, a pedal 26 and a swinging structure.

The round tube 2 is fixedly arranged on the second rotating shaft 15, the length direction of the round tube 2 is perpendicular to the axial direction of the second rotating shaft 15, and the rear end of the round tube 2 is fixedly provided with a bottom plate 21.

The sliding block 24 is arranged in the circular tube 2 in a sliding mode, and a return spring 25 is fixedly connected between the rear end of the sliding block 24 and the bottom plate 21.

The footrests 26 are hinged to the front ends of the sliders 24 by push rods 261. Preferably, the pedal 26 is inclined to a certain degree and has a rubber layer on the front side.

The swing structure is arranged on the bottom plate 21 and can push the U-shaped floating body 1 to move forwards when the sliding block 24 slides back and forth in the circular tube 2.

The auxiliary pushing mechanism is arranged in the two straight portions 11 and can assist in pushing the U-shaped floating body 1 to move forwards.

When an accident occurs on the sea, a shipman throws the lifesaving device into the water, jumps into the water, climbs into the lifesaving device, lies on the mesh 16, places two feet on the two pedals 26 respectively, alternately steps on the pedals 26 backwards to enable the sliding block 24 in the circular tube 2 to slide backwards, then receives the feet forwards, enables the sliding block 24 to slide forwards under the action of the return spring 25, pushes the U-shaped floating body 1 to move forwards through the swing structure, increases the forward moving distance of the U-shaped floating body 1 as much as possible under limited physical force, and can push the U-shaped floating body 1 to move forwards through the auxiliary pushing mechanism when the shipman stops for rest, so that the U-shaped floating body 1 keeps moving continuously and the rescue time is shortened.

Specifically, the swing structure includes the fixed shaft 3, the first swing plate 312, and the second swing plate 322.

The fixed shaft 3 is fixedly arranged on the bottom plate 21, and the axial direction of the fixed shaft 3 is consistent with that of the second rotating shaft 15.

The first swing plate 312 is disposed at one end of the fixed shaft 3 through a first linkage structure, and when the sliding block 24 slides back and forth in the circular tube 2, the first linkage structure can drive the first swing plate 312 to swing up and down.

The second swinging plate 322 is disposed at one end of the fixed shaft 3 through a second linkage structure, when the slider 24 slides back and forth in the circular tube 2, the second linkage structure can drive the second swinging plate 322 to swing up and down, and the swinging directions of the second swinging plate 322 and the first swinging plate 312 are always opposite.

When the sliding block 24 slides back and forth in the circular tube 2, the first swinging plate 312 and the second swinging plate 322 at the two ends of the fixed shaft 3 are driven to swing up and down, and the first swinging plate 312 and the second swinging plate 322 swing up and down in a reciprocating manner due to the alternate treading of the two feet, so that the U-shaped floating body 1 is pushed to move forward quickly, and the physical consumption of a shipman is reduced.

Specifically, the first linkage structure includes a first rotation block 31, a first support bar 241, and a first link 242.

The first rotating block 31 is rotatably arranged at one end of the fixed shaft 3, the first rotating block 31 is oblong, and the first swinging plate 312 is fixedly connected to one end of the first rotating block 31 through a first fixing rod 311.

A first sliding slot hole 22 is formed in one side of the circular tube 2 close to the first rotating block 31 along the length direction, one end of the first supporting rod 241 is fixedly arranged on the sliding block 24, and the other end of the first supporting rod passes through the first sliding slot hole 22 and extends out of the circular tube 2.

One end of the first connecting rod 242 is hinged to one end of the first rotating block 31 far away from the first fixing rod 311, and the other end of the first connecting rod 242 is hinged to one end of the first supporting rod 241 extending out of the circular tube 2.

When the slider 24 slides backward, the first swing plate 312 is rotated downward by the first link 242, and when the slider 24 slides forward, the first swing plate 312 is rotated upward by the first link 242, and the slider 24 slides forward and backward, so that the first swing plate 312 swings upward and downward, and a forward thrust is generated.

Specifically, the second linkage structure includes a second rotating block 32, a second support rod 243, and a second link 244.

The second rotating block 32 is rotatably disposed at the other end of the fixed shaft 3, the second rotating block 32 is in an oblong shape, and the second swinging plate 322 is fixedly connected to one end of the second rotating block 32 through a second fixed rod 321.

A second sliding slot hole 23 is formed in one side, close to the second rotating block 32, of the circular tube 2 along the length direction, one end of the second support rod 243 is fixedly arranged on the sliding block 24, the other end of the second support rod passes through the second sliding slot hole 23, and the end of the second support rod extends out of the circular tube 2.

One end of the second connecting rod 244 is hinged to one end of the second rotating block 32 away from the second fixing rod 321, and the other end of the second connecting rod 244 is hinged to one end of the second supporting rod 243 extending out of the circular tube 2.

When the slider 24 slides backwards, the second swinging plate 322 is rotated upwards under the action of the second link 244, and when the slider 24 slides forwards, the second swinging plate 322 is rotated downwards under the action of the second link 244, and the second swinging plate 322 swings upwards and downwards through the forward and backward sliding of the slider 24, so that the forward thrust is generated, and the structure is simple.

Specifically, the auxiliary pushing mechanism includes two auxiliary pushing structures, two auxiliary pushing structures correspond to two straight portions 11 one to one, and each auxiliary pushing structure includes a cavity 17, a storage battery 111, a blade propeller 172, and a drainage structure.

The cavity 17 is opened in straight portion 11, first through-hole 171 has been seted up to the tail end of straight portion 11, second through-hole 174 has been seted up to the bottom of straight portion 11, first through-hole 171 and second through-hole 174 all are linked together with cavity 17.

The battery 111 is fitted into the flat portion 11.

The blade propeller 172 is disposed in the cavity 17 between the second through hole 174 and the first through hole 171, the blade propeller 172 is electrically connected to the battery 111, and the blade propeller 172 is composed of a motor and an impeller.

The drainage structure is provided at the bottom of the straight portion 11, and when the U-shaped floating body 1 moves forward, the drainage structure can drain water near the second through hole 174 into the cavity 17.

When the U-shaped floating body 1 moves forwards, water near the second through hole 174 is drained into the cavity 17 through the drainage structure, the water inlet speed in the cavity 17 is increased, meanwhile, the blade propeller 172 is started, the water entering the cavity 17 is pushed out to the first through hole 171, and the moving speed of the U-shaped floating body 1 is accelerated.

Specifically, the drainage structure includes a water inlet pipe 14 and a guide plate 173.

One end of the water inlet pipe 14 faces the arc-shaped portion 12 and the end portion is flared outward, and the other end is communicated with the second through hole 174.

The guide plate 173 is disposed obliquely in the cavity 17 above the second through hole 174.

When the U-shaped floating body 1 moves forwards, water flows into the front end of the water inlet pipe 14 and then enters the cavity 17 through the second through hole 174, and under the action of the guide plate 173, water directly flows to the rear end of the blade propeller 172, so that the power loss of the water flow is reduced; in addition, the flared forward end increases the velocity of the water entering the inlet pipe 14, increasing the thrust of the blade propeller 172.

Specifically, the rear ends of the two straight portions 11 are provided with the drain pipes 13, the drain pipes 13 are communicated with the first through holes 171, and the drain pipes 13 are flared.

When the water in the cavity 17 is discharged into the drain pipe 13 through the first through hole 171, the flared drain pipe 13 can increase the action area of the discharged water and increase the thrust of the water flow.

Specifically, the life saving device further comprises a power generation mechanism, wherein the power generation mechanism comprises a first rotating shaft 123, a sleeve 4, a vertical rod 5 and a power generator 122.

The first rotating shaft 123 is vertically and rotatably disposed on the arc-shaped portion 12, and a rectangular block 124 is disposed at an upper end of the first rotating shaft 123.

The sleeve 4 is vertically and fixedly arranged on the upper side surface of the arc-shaped part 12, and the sleeve 4 is coaxially arranged on the outer side of the first rotating shaft 123.

The lower end of the vertical rod 5 is inserted into the sleeve 4, the end part of the vertical rod is provided with a rectangular blind hole 54, the rectangular blind hole 54 is matched with the rectangular block 124, and the upper end of the vertical rod 5 is symmetrically provided with two rotating blade plates 51.

An installation cavity 121 is formed in the arc-shaped portion 12, the generator 122 is fixedly arranged in the installation cavity 121, the lower end of the first rotating shaft 123 extends into the installation cavity 121, the end portion of the first rotating shaft is fixedly connected with an input shaft of the generator 122, and the generator 122 is electrically connected with the storage battery 111 through a rectifier.

When the rectangular block 124 at the upper end of the first rotating shaft 123 is inserted into the rectangular blind hole 54 of the vertical rod 5, under the action of the sea wind, the two rotating vane plates 51 and the vertical rod 5 are pushed to rotate, the generator 122 is driven to generate electricity, and then the electricity is stored in the storage battery 111 and is used for the vane propeller 172 to increase the moving distance of the U-shaped floating body 1.

Specifically, a horizontal sliding slot hole 41 is formed in the side wall of the sleeve 4, a sliding rod 6 is inserted into the horizontal sliding slot hole 41, a handle 61 is arranged at the outer end of the sliding rod 6, an internal threaded blind hole 53 is formed in the side wall of the lower end of the vertical rod 5, an external thread is arranged at the inner end of the sliding rod 6, and when the vertical rod 5 moves upwards to a position away from the rectangular block 124, at least one position is formed, and the inner end of the sliding rod 6 can rotate into the threaded blind hole 53.

When the offshore wind direction is favorable for the U-shaped floating body 1 to move forward, the vertical rod 5 is lifted upwards, the rectangular block 124 at the upper end of the first rotating shaft 123 is far away from the rectangular blind hole 54, after the internal thread blind hole 53 moves to the same height as the horizontal sliding slot hole 41, the inner end of the sliding rod 6 is rotated into the internal thread blind hole 53, at the moment, the sliding rod 6 is rotated through the handle 61, the rotating vane plate 51 on the vertical rod 5 is just opposite to the wind direction, the U-shaped floating body 1 is pushed to move forward, and the moving speed of the U-shaped floating body 1 is improved.

Specifically, the upper end of the vertical rod 5 is fixedly provided with a rescue lamp 52.

The rescue lamp 52 on the vertical rod 5 is turned on, so that nearby ships can find people falling into the water in time in a dark environment, and the rescue success rate is improved; in addition, the storage battery 111 can continuously supply electric power to the rescue lamp 52.

In the description of the present patent, it is to be understood that the terms "upper", "lower", "inside", "outside", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing the present patent and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present patent.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications or additions may be made to the described embodiments, or alternatives may be employed, by those skilled in the art, without departing from the spirit or ambit of the invention as defined in the appended claims.

Claims

1. A water lifesaving device is characterized by comprising a U-shaped floating body (1), wherein the U-shaped floating body (1) comprises an arc-shaped part (12) and two straight parts (11) arranged at two ends of the arc-shaped part (12), and mesh cloth (16) is arranged in an opening of the U-shaped floating body (1);

the second rotating shaft (15), the said second rotating shaft (15) rotates horizontally and sets up between the rear ends of two straight portions (11);

two first pushing mechanisms, two said first pushing mechanisms all set up on the second pivot (15), said first pushing mechanism has: the round pipe (2) is fixedly arranged on the second rotating shaft (15), the length direction of the round pipe (2) is perpendicular to the axial direction of the second rotating shaft (15), and a bottom plate (21) is fixedly arranged at the rear end of the round pipe (2); the sliding block (24) is arranged in the circular tube (2) in a sliding mode, and a return spring (25) is fixedly connected between the rear end of the sliding block (24) and the bottom plate (21); the pedal (26) is hinged to the front end of the sliding block (24) through a push rod (261); the swinging structure is arranged on the bottom plate (21), and when the sliding block (24) slides back and forth in the circular tube (2), the swinging structure can push the U-shaped floating body (1) to move forwards;

the auxiliary pushing mechanism is arranged in the two straight parts (11) and can assist in pushing the U-shaped floating body (1) to move forwards;

the swing structure includes:

the fixed shaft (3) is fixedly arranged on the bottom plate (21), and the axial direction of the fixed shaft (3) is consistent with that of the second rotating shaft (15);

the first swinging plate (312) is arranged at one end of the fixed shaft (3) through a first linkage structure, and when the sliding block (24) slides back and forth in the circular tube (2), the first linkage structure can drive the first swinging plate (312) to swing up and down;

the second swinging plate (322) is arranged at one end of the fixed shaft (3) through a second linkage structure, when the sliding block (24) slides back and forth in the circular tube (2), the second linkage structure can drive the second swinging plate (322) to swing up and down, and the swinging directions of the second swinging plate (322) and the first swinging plate (312) are opposite all the time;

the first linkage structure includes:

the first rotating block (31) is rotatably arranged at one end of the fixed shaft (3), the first rotating block (31) is in an oblong shape, and the first swinging plate (312) is fixedly connected to one end of the first rotating block (31) through a first fixing rod (311);

one side, close to the first rotating block (31), of the circular tube (2) is provided with a first sliding slot hole (22) along the length direction, one end of the first supporting rod (241) is fixedly arranged on the sliding block (24), the other end of the first supporting rod penetrates through the first sliding slot hole (22), and the end part of the first supporting rod extends out of the circular tube (2);

one end of the first connecting rod (242) is hinged to one end, far away from the first fixing rod (311), of the first rotating block (31), and the other end of the first connecting rod (242) is hinged to one end, extending out of the circular tube (2), of the first supporting rod (241);

the second linkage structure includes:

the second rotating block (32) is rotatably arranged at the other end of the fixed shaft (3), the second rotating block (32) is in an oblong shape, and the second swinging plate (322) is fixedly connected to one end of the second rotating block (32) through a second fixing rod (321);

a second supporting rod (243), wherein a second sliding groove hole (23) is formed in one side, close to the second rotating block (32), of the circular tube (2) along the length direction, one end of the second supporting rod (243) is fixedly arranged on the sliding block (24), the other end of the second supporting rod (243) penetrates through the second sliding groove hole (23), and the end part of the second supporting rod extends out of the circular tube (2);

one end of the second connecting rod (244) is hinged to one end, far away from the second fixing rod (321), of the second rotating block (32), and the other end of the second connecting rod (244) is hinged to one end, extending out of the circular tube (2), of the second supporting rod (243).

2. A water life saving device according to claim 1, wherein the auxiliary pushing mechanism comprises two auxiliary pushing structures, the two auxiliary pushing structures correspond to the two straight parts (11) in a one-to-one manner, and the auxiliary pushing structures comprise;

the cavity (17) is formed in the straight portion (11), a first through hole (171) is formed in the tail end of the straight portion (11), a second through hole (174) is formed in the bottom of the straight portion (11), and the first through hole (171) and the second through hole (174) are communicated with the cavity (17);

a storage battery (111), wherein the storage battery (111) is embedded in the straight part (11);

a blade propeller (172), the blade propeller (172) being disposed in the cavity (17) between the second through hole (174) and the first through hole (171), the blade propeller (172) being electrically connected to the battery (111);

the drainage structure is arranged at the bottom of the straight portion (11), and when the U-shaped floating body (1) moves forwards, the drainage structure can drain water near the second through hole (174) into the cavity (17).

3. A water life saving device as claimed in claim 2, wherein the drainage structure comprises:

one end of the water inlet pipe (14) faces the arc-shaped part (12), the end part of the water inlet pipe is in an outward expanding horn shape, and the other end of the water inlet pipe is communicated with the second through hole (174);

a guide plate (173), the guide plate (173) being disposed obliquely in the cavity (17) above the second through hole (174).

4. A water life saving device according to claim 3, characterized in that the rear ends of the two straight parts (11) are provided with a drain pipe (13), the drain pipe (13) is communicated with the first through hole (171), and the drain pipe (13) is flared.

5. The water life saving device of claim 1, further comprising a power generation mechanism, the power generation mechanism comprising:

the first rotating shaft (123) is vertically and rotatably arranged on the arc-shaped part (12), and a rectangular block (124) is arranged at the upper end of the first rotating shaft (123);

the sleeve (4) is vertically and fixedly arranged on the upper side face of the arc-shaped part (12), and the sleeve (4) is coaxially arranged on the outer side of the first rotating shaft (123);

the lower end of the vertical rod (5) is inserted into the sleeve (4), a rectangular blind hole (54) is formed in the end portion of the vertical rod (5), the rectangular blind hole (54) is matched with the rectangular block (124), and two rotating vane plates (51) are symmetrically arranged at the upper end of the vertical rod (5);

the generator (122), be equipped with installation cavity (121) in the arc portion (12), generator (122) sets firmly in installation cavity (121), generator (122) and first pivot (123) transmission are connected, generator (122) and battery (111) electricity are connected.

6. The water life saving device of claim 5, wherein a horizontal sliding slot hole (41) is formed in the side wall of the sleeve (4), a sliding rod (6) is inserted into the horizontal sliding slot hole (41), an internal threaded blind hole (53) is formed in the side wall of the lower end of the vertical rod (5), an external thread is formed at the inner end of the sliding rod (6), and when the vertical rod (5) moves upwards to a position away from the rectangular block (124), at least one position is formed, and the inner end of the sliding rod (6) can rotate into the threaded blind hole (53).

7. A water lifesaving device according to claim 6, wherein a rescue light (52) is fixed at the upper end of the vertical rod (5).