AU2019372032B2 - Power lifesaving device - Google Patents

Abstract

A power buoyant device, comprising a buoyant device body (100), a propeller (200), and a control box (300). The power buoyant device body comprises a support position for supporting the human body. The propeller (200) is provided at the tail of the buoyant device body (100), and is used for generating thrust to move the buoyant device body (100) forwards. The control box (300) is provided in the buoyant device body (100) and is connected to the propeller (200) for controlling on and off thereof. The power buoyant device can rescue the person in water timely, quickly, and accurately.

Description

Power Lifesaving device

This application claims priority to Chinese Patent Application No. 201811302535.9, filed on 2 November 2018, entitled "Power Lifesaving device", and claims priority to Chinese Patent Application No. CN201821813454.0, entitled "Symmetric Power Lifesaving device", filed on 2 November 2018, and claims priority to Chinese Patent Application No. CN201811302532.5, filed on 2 November 2018, entitled "Thruster for Power Lifesaving Device", and claims priority to Chinese Patent Application No. 201811303450.2, filed on 2 November 2018, entitled "Water-Shielding Mechanism for Thruster".

Technical Field

The present application relates to a technical field of water surface rescue, and in particular to a power lifesaving device.

Background

At present, an opening degree of maritime domains in our country is higher and higher, and people's maritime activities are also increasing day by day, and at the same time, attendant maritime accidents and maritime rescue are also increasing continuously. Currently, a sea rescue personnel basically adopts a way of throwing rescue circle manually for a dropping person, this way has a short distance, a low efficiency, and belongs to a passive rescue, and has a certain water property requirement for a water rescue personnel, and if the dropping person does not swim, the rescue circle will not have a rescue effect. Furthermore, the rescue effect of the hand rescue lifecycle is mainly dependent on a person of throwing the rescue circle, a distance of throwing the rescue circle is farther by a person with large force, the distance of throwing the rescue circle is shorter by a person with small force. When the rescue circle is very close to the mother vessel, it is also possible to sound a secondary injury to the dropping person.

Therefore, a timely, quick and accurate rescue cannot be achieved by the way of throwing lifesaver circle.

Summary

In view of the shortcomings of the prior art, the present application provides a power lifesaving device for solving a problem in the prior art that a person falling water cannot be rescued timely, quickly and accurately.

To this end, according to an embodiment of the invention, the power lifesaver device includes: a lifesaver main body with a bearing position for bearing a human body; a thruster provided at a tail portion of the lifesaver main body, the thruster being used for generating a thrust force so as to enable the lifesaver main body to advance forward; and a control box provided in the lifesaver main body and connected with the thruster, the control box being capable of controlling an opening and closing of the thruster; the thruster includes a duct tube, a power mechanism, and a water-shielding mechanism; the duct tube defines an accommodating cavity, a tube wall of the duct tube is provided with two water inlets arranged in an up-and-down direction in communication with the accommodating cavity, and a tail portion of the duct tube is provided with a water outlet in communication with the accommodating cavity; the power mechanism is disposed in the duct tube, and the power mechanism is used for enabling water to be discharged out of the duct tube in a direction from the water inlet to the water outlet, so as to generate a thrust force; at least a part of the water-shielding mechanism is disposed at the water inlet which is located above. In some embodiments, the lifesaver main body includes a housing, wherein the housing defines a control box cavity, the control box cavity is located in a middle of the housing, and the control box is disposed in the control box chamber.

In some embodiments, the power lifesaving device further includes power supply units for supplying power to the thruster; the housing further has a power supply unit cavities; the power supply unit cavities are symmetrically disposed at two sides of the control box cavity; and the power supply unit are arranged in the power supply unit cavities respectively.

In some embodiments, the power supply unit includes a battery.

In some embodiments, the power lifesaving device further includes a wireless charging module for charging the power supply unit, the housing further has a wireless charging module cavity, the wireless charging module cavity is located behind the control box cavity, and the wireless charging module is disposed in the wireless charging module cavity.

In some embodiments, a tail part of the power supply unit cavity is provided with a connecting port, and the thruster is mounted in a sealed manner at the connecting port.

In some embodiments, the power lifesaving device further includes a connecting base, the connecting base is mounted at the connecting port, and the thruster is mounted on the connecting base.

In some embodiments, the thruster includes a duct tube and a power mechanism disposed in the duct tube, the duct tube has a water inlet and a water outlet in communication with the water inlet, the power mechanism is used for enabling water to drain out of the duct tube in a direction from the water inlet to the water outlet, so as to generate a thrust force.

In some embodiments, the duct tube includes a first duct tube and a second duct tube connected with the first duct tube, the water inlet is provided on the first duct tube having.

In some embodiments, the second duct tube forms the water outlet, the water outlet being of necking-shaped.

In some embodiments, the lifesaver main body is of a left-right and up-down symmetrical structure.

In some embodiments, the housing includes an upper housing and a lower housing, and the upper housing covers the lower housing.

In some embodiments, a head of the housing is symmetrically provided with at least two hand-grabbing holes.

In some embodiments, the power supply unit cavity arches to form limiting parts, so that a human body is limited between the limiting parts.

In some embodiments, the conduit tube defines an accommodating cavity, a tube wall of the duct tube is provided with two water inlets arranged in an up-down manner and in communication with the accommodating cavity, and a tail part of the conduit tube is provided with the water outlets in communication with the accommodating cavity; the thruster further includes a water-shielding mechanism. At least a part of the water-shielding mechanism is disposed at an upper water inlet in the two water inlets for blocking water from being discharged from the upper water inlet.

In some embodiments, the water inlet is of grid-shape.

In some embodiments, a seal ring is provided at a joint of the first duct tube and the second duct tube.

In some embodiments, the power mechanism includes a motor, a rotating shaft connected with an output shaft of the motor, and a propeller disposed on the rotating shaft.

In some embodiments, the thruster further includes a conical mounting seat sheathed on an outer periphery of the power mechanism, the conical mounting seat is provided with a groove along its circumferential direction, and the water-shielding mechanism is rotatably provided in the groove.

In some embodiments, the water-shielding mechanism includes a water-shielding plate and a counterweight body, wherein the water-shielding plate is rotatably disposed in the thruster, the counterweight body is connected with the water-shielding plate, such that the water-shielding plate is always located above the pipeline-containing tube under a gravity of the counterweight body.

In some embodiments, the water -shielding plate is of arc-shaped.

In some embodiments, a cover area of the water -shielding plate is greater than an area of the water inlet of the thruster.

In some embodiments, a first connecting rib extends downwards from two side edges of the water -shielding plate, the water-shielding mechanism further includes a second connecting rib connected with the first connecting rib, the first connecting rib and the second connecting rib form an annular structure, the second connecting rib is provided with an arc-shaped cavity, and the counterweight body is installed in the arc-shaped cavity.

In some embodiments, the counterweight body and the second connecting rib form an integrated structure.

In some embodiments, the counterweight body and the second connecting rib are detachably mounted.

Beneficial effects of the present application are:

According to the power lifesaving device in the above embodiment, since the tail of the lifesaver main body is provided with a thruster capable of generating thrust, the lifesaver main body can be advanced forward under the action of the thruster, and after the power lifesaving device is put in water, a signal is sent to the control box. Then, the control box controls the opening and closing of the thruster, so that the whole power lifesaving device quickly propels forward and accurately reaches the vicinity of the dropping person, thereby implementing timely, rapid and accurate rescue for the dropping person.

Brief Description of the Drawings

In order to illustrate the technical solutions of the embodiments of the present application more clearly, the accompanying drawings required in the embodiments will be briefly introduced below. It should be understood that the following drawings illustrate only some embodiments of the present application. Therefore, it should not be regarded as limiting the scope, and for a person of ordinary skill in the art, other relevant drawings can be obtained according to these drawings without creative efforts.

Fig. 1 illustrates a top view of a power lifesaving device provided in accordance with an embodiment of the present application;

Fig. 2 illustrates a bottom view of a power lifesaving device provided in accordance with an embodiment of the present disclosure;

Fig. 3 illustrates a rear view of a power lifesaving device provided in accordance with an embodiment of the present application;

Fig.4 illustrates a perspective view of a power lifesaving device provided in accordance with an embodiment of the present disclosure;

Fig. 5 illustrates a disassembled view of a lifesaver main body and a thruster of a power lifesaving device according to an embodiment of the present application;

Fig. 6 illustrates an exploded view of a pusher of a power lifesaving device provided in accordance with an embodiment of the present application;

Fig. 7 illustrates a water discharge direction diagram of a power lifesaving device according to an embodiment of the present application;

Fig. 8 illustrates a schematic structural view of a connection seat of a power lifesaving device according to an embodiment of the present application;

Fig. 9 illustrates a structural schematic diagram of a conical mounting seat of a power lifesaving device provided by an embodiment of the present application;

Fig. 10 illustrates a schematic diagram of installation of a conical mounting seat and a water retaining mechanism of a power lifesaving device provided according to an embodiment of the present application.

Key Components Notification:

100, lifesaver main body; 200, thruster; 300, control box; 400, power supply unit; 500, wireless charging module; 110, bearing position; 120, housing; 130, anti-slip thermal insulation mechanism; 140, mounting groove; 150, elastic cushion ring; 160, grab rope; 170, hand-grabbing hole; 180, LED indicator light; 210, duct tube; 220, power mechanism; 230, water-shielding mechanism; 240, sealing mechanism; 121, control box chamber; 122, power supply unit cavity; 123, upper housing; 124, lower housing; 125, wireless charging module cavity; 131, anti-slip plate; 132, heating member; 151, mounting hole; 211, water inlet; 212, water outlet; 213, first duct tube; 214, second duct tube; 221, motor; 222, rotating shaft; 223, propeller; 231, water-shielding plate; 232, counterweight body; 233, second connecting rib; 241, connecting base; 242, conical mounting seat; 243, seal ring; 1221, connecting port; 2311, first connecting rib; 2331, arc-shaped cavity; 2411, first groove; 2421, second groove; 241a, circular bottom plate; 241b, circular recess; 241c, convex rib; 242a, groove.

Detailed Description of the Embodiments

Reference will be made in detail to embodiments of the present disclosure, examples of which are illustrated in the accompanying drawings, where same or similar reference numerals are used to indicate same or similar members or members having same or similar functions. The embodiments described herein with reference to drawings are explanatory, illustrative, and used to generally understand the present disclosure. The embodiments shall not be construed to limit the present disclosure.

Embodiment

The present embodiment provides a power lifesaving device.

Please refer to Figs. 1-4, the power lifesaving device includes a lifesaver main body 100, a thruster 200 and a control box 300.

The lifesaver main body 100 has a bearing seat 110 for bearing a human body. The thruster 200 is provided at the tail end of the lifesaver main body 100, and the thruster 200 is used for generating a thrust force so that the lifesaver main body 100 advances forward. The control box 300 is provided in the lifesaver main body 100 and is connected with the thruster 200 for controlling the opening and closing of the thruster 200.

In this way, since the thruster 200 capable of generating thrust is disposed at the tail of the lifesaver main body 100, the lifesaver main body 100 can be advanced forward under the action of the thruster 200, and after the power lifesaving device is placed in water, a signal is sent to the control box 300. Then, the control box 300 controls the opening and closing of the thruster 200 so that the whole power lifesaving device quickly propels forward and accurately reaches the vicinity of the dropping person, thereby achieving timely, rapid and accurate rescue for the dropping person.

Referring to Figs. 1-4 again, in the embodiment of the present application, the power lifesaving device is a symmetric power lifesaving device, which is embodied in that the lifesaver main body 100 is of a left-right and up-down symmetrical structure, the thrusters 200 are symmetrically arranged on two sides of the lifesaver main body 100, and the control box 300 is arranged on a central axis of the lifesaver main body 100 in the left-right direction.

In some embodiments, the generator main body 100 includes a housing 120, a bearing position

110 is formed in the middle of the housing 120, the housing 120 defines a control box chamber 121 and a power supply unit chamber 122, the control box chamber 121 is located in the middle of the housing 120, and the control box 300 is arranged in the control box chamber 121. The power supply unit cavity 122 is symmetrically arranged at two sides of the housing 120; the thruster 200 is mounted at the tail portion of the power supply unit cavity 122; a power supply unit 400 is arranged in the power supply unit cavity 122; and the power supply unit 400 is used for establishing a connection with the thruster 200, so as to supply power to the thruster 200.

So far, the entire power lifesaving device is symmetrical about the central axis in the left-right direction.

In order to achieve an up-and-down symmetrical structure, in the embodiments of the present application, the housing 120 includes an upper housing 123 and a lower housing 124, the upper housing 123 covers the lower housing 124, and the upper housing 123 and the lower housing 124 have the same shape and size; in this way, once the upper housing 123 covers the lower housing 124, upper and lower faces of the housing 120 formed by the upper housing 123 and the lower housing 124 have the same structure.

So far, the entire power lifesaving device presents a symmetrical structure, i.e. left-right and up-down, which is significant for the operator to control the power lifesaving device and the water drainage personnel to climb the power lifesaving device, can facilitate the use of the operator and the water drainage personnel, and provides a basis for timely and quick rescue.

In some embodiments, due to the described symmetrical arrangement of the power lifesaving device, the operator can throw the power lifesaving device into the water in any direction, thereby reducing the preparation work of the operator to some extent; when the power lifesaving device arrives at the person falling in the water, the person falling in the water does not need to distinguish the orientation of the power lifesaving device, and the person falling in the water climbs the power lifesaving device at any angle, which reduces the time for the person falling in the water to some extent, and provides a certain time basis for timely rescue.

On the other hand, arranging the two power supply units 400 symmetrically plays an important role when an emergency occurs to the power lifesaving device. For example, after one power supply unit 400 fails, the other power supply unit 400 continues to work, so as to at least ensure normal use of the power lifesaving device.

In certain embodiments, the power supply unit 400 includes a battery, preferably in the form of a lithium battery.

In addition, referring to Fig. 5, in order to facilitate charging of the storage battery, a wireless charging module 500 further is provided in the power lifesaving device for charging the power supply unit 400; the housing 120 further has a wireless charging module cavity 125; the wireless charging module cavity 125 is located right behind the control box cavity 121; and the wireless charging module 500 is provided in the wireless charging module cavity 125.

In some embodiments, in order to ensure stability of the water drainage personnel on the power lifesaving device and prevent secondary shedding, the power supply unit cavity 122 arches to form a limiting portion, so that a human body is limited between the limiting portions.

In some embodiments, with reference to Figs. 3 and 4, since the power supply unit cavity 122 is symmetrically arranged at two sides of the lifesaver main body 100, and the power supply unit cavity 122 is arched, a recessed area can be formed at a middle position of the lifesaver main body 100. Obviously, when a person falling water is located in the recessed area, the person falling water can be prevented from falling water twice due to the effect of a limiting portion formed by the power supply unit cavity 122.

It can be seen that after water has fallen, the body temperature of a person falling water will decrease rapidly, and in order to maintain the normal function of the person falling water as much as possible and to provide more valuable and more time for subsequent rescue, an anti-slip thermal insulation mechanism 130 can also be provided on the lifesaver main body 100.

Referring to Fig. 4 again, the anti-slip thermal insulation mechanism 130 includes an anti-slip plate 131 and a heating member 132.

Wherein, the anti-slip plate 131 is used to play a role of anti-slip. The heating member 132 is disposed below the anti-slip plate 131 or passes through the anti-slip plate 131, and the heating member 132 is used for generating heat when electrified and transferring the heat to the anti-slip plate 131.

In this way, by means of the effect of the anti-slip plate 131, the stability of the person falling water on the power lifesaving device can be further ensured, so as to prevent the occurrence of secondary falling water. In addition, by means of the effect of the heating member 132, the anti-slip plate 131 can also have a certain temperature, so as to maintain the normal function of the person falling water, and also provide more valuable and more time for subsequent rescue.

In the embodiment in which the heating member 132 is located below the anti-slip plate 131, an accommodating groove capable of accommodating the heating member 132 is provided on the surface of the lifesaver main body 100, and the accommodating groove is provided right behind the control box cavity 121, so that after the heating member 132 is mounted in the accommodating groove, the anti-slip plate 131 is covered.

In order to enable heat to be quickly transferred to the anti-slip plate 131, a layer of heat-conducting film is sheathed on the periphery of the anti-slip plate 131, and the heat-conducting film is made of a heat-conducting material, for example, is formed by weaving an aluminum wire. In this way, the heat-conducting film not only can play a heat-conducting role, but also has an anti-slip function.

Of course, in order to transfer the heat to the anti-slip plate 131 as soon as possible, the anti-slip plate 131 itself can also be made of a thermally conductive material. In this housing, in order to make the anti-slip plate 131 have an anti-corrosion function, an anti-slip strip and/or an anti-slip protrusion and/or an anti-slip groove, etc. is provided on the surface of the anti-slip plate 131.

In the embodiment in which the heating member 132 passes through the anti-slip plate 131, a through hole is formed in the anti-slip plate 131, and the heating member 132 is sleeved in the through hole.

In the above two manners, a heat conducting piece is further arranged between the anti-slip plate 131 and the heating piece 132, so as to further improve the heat transfer speed.

In addition, the heating unit 132 is arranged in a curved and serpentine manner, so that the heating unit 132 has a larger contact area with the anti-slip plate 131 as far as possible.

In some specific implementations, the heating member 132 is an electric heating wire, and the electric heating wire is directly connected to the power supply unit 400 on two sides, so that the power supply unit 400 supplies power to the electric heating wire.

In the embodiment of the present application, in order to prevent the water falling personnel from being damaged by the collision of the power lifesaving device during climbing the power lifesaving device, the following arrangement is further provided at the periphery of the lifesaver main body 100.

Please refer to Fig. 5, the edge of the lifesaver main body 100 is provided with a mounting groove 140 in the circumferential direction, an elastic cushion ring 150 is provided in the mounting groove 140, and the elastic cushion ring 150 protrudes from the mounting groove 140.

In this way, due to the arrangement of the elastic cushion ring 150, the person falling water can first come into contact with the elastic cushion ring 150, and with the cushion and support of the elastic cushion ring 150, the person falling water can be guaranteed to climb to the power lifesaving device.

In some embodiments, the portion of the elastic cushion ring 150 protruding outwards is arc-shaped, and the arc shape can be designed by human engineering, so that the elastic cushion ring 150 does not cause discomfort to a person falling in water.

In certain embodiments, the elastic cushion ring 150 is made of rubber or a material having the same material as rubber, for example.

In addition, referring to Fig. 5, in order to facilitate the person falling water to quickly climb the power life jacket, a grab rope 160 is installed at the edge of the lifesaver main body 100.

It should be understood that the grab rope 160 is arranged to provide a catching point for the person falling water, and when the person falling water catches the grab rope 160, the grab rope 160 is used to generate a force, thereby boarding the power lifesaving device.

The grab rope 160 is directly mounted on the elastic cushion ring 150. In this housing, the elastic cushion ring 150 is evenly and alternately provided with mounting holes 151 along an extending direction of the elastic cushion ring 150, and the grab rope 160 is sleeved in the mounting holes 151.

Of course, in some embodiments, the grab rope 160 is directly mounted on the lifesaver main body 100, and at this time, mounting posts (not shown in the figure) may be evenly spaced at the edge of the lifesaver main body 100, and the rope grab 160 is connected with the mounting posts.

Referring to Fig. 5 again, in addition to the above description, in order to facilitate the person falling water climbing the power lifesaving device and facilitate the person falling water staying on the power lifesaving device, the head of the lifesaver main body 100 is further provided with at least two hand-gripping holes 170.

Further, the hand-grabbing hole 170 is provided near the edge of the lifesaver main body 100, so as to facilitate grasping by a person falling water.

Still further, the hand-grabbing holes 170 are of strip-shaped, which further facilitates grasping by the person falling water.

In order to adapt to the symmetrical shape of the power lifesaving device, the hand-grabbing hole 170 are preferably symmetrically arranged on the lifesaver main body 100.

Of course, in addition to the described effects, the hand-grabbing hole 170 can also facilitate a person performing rescue to grab the power lifesaving device to be thrown.

As described above, in order to facilitate the installation of the thrusters 200, a connecting port 1221 is provided at the tail of the power supply unit cavity 122, and the thrusters 200 are hermetically installed at the connecting port 1221.

Please refer to Figs. 5-7, in the embodiment of the present application, the thruster 200 includes a duct tube 210, a power mechanism 220, and a water-shielding mechanism 230.

The duct tube 210 defines an accommodating cavity, the tube wall of the duct tube 210 is provided with two water inlets 211 arranged in an up-and-down direction in communication with the accommodating cavity, and the tail portion of the duct tube 210 is provided with a water outlet 212 in communication with the accommodating cavity. The power mechanism 220 is disposed in the duct tube 210, and the power mechanism 220 is used for enabling water to be discharged out of the duct tube 210 in the direction from the water inlet 211 to the water outlet 212 so as to generate a thrust force. At least a part of the water-shielding mechanism 230 is disposed at the water inlet 211 which is located above, and is used for blocking water from being discharged from the water inlet 211 which is located above.

In this way, due to the arrangement of the two water inlets 211 of the duct tube 210, the water-shielding mechanism 230 can block water from the water inlet 211 at the upper side, that is to say, when the power lifesaving device is in normal use, water always enters from the water inlet 211 at the lower side and is discharged from the water outlet 212, which can reduce the loss of thrust after water flows, and improve the propulsion efficiency of the thruster 200. In addition, because of the arrangement of the two water inlets 211, the power lifesaving device can generate thrust force regardless of the direction in which the power lifesaving device is put into the water.

The duct tube 210 includes a first duct tube 213 and a second duct tube 214 connected with the first duct tube 213, and a water inlet 211 is provided on the upper and lower sides of the tube wall of the first duct tube 213.

Further, the water inlet 211 is of grid-shaped.

A sealing ring is disposed at a joint between the first duct tube 213 and the second duct tube 214, so as to improve a sealing effect of the joint between the first duct tube 213 and the second duct tube 214.

The second duct tube 214 forms the water outlet 212 which is of necking-shaped, so that the discharging speed of the water flow can be improved to some extent, thereby being beneficial to improving the propulsion force.

It can be seen that the above duct tubes 210 are divided into a first duct tube 213 and a second duct tube 214 for easy installation. Of course, in other embodiments, the duct tube 210 is integrally formed, so as to reduce the manufacturing process and control the manufacturing time.

Referring to Fig. 6 again, in the embodiment of the present application, the power mechanism 220 includes a motor 221, a rotating shaft 222 connected with an output shaft of the motor 221, and a propeller 223 screwed on the rotating shaft 222.

With reference to the foregoing description, the motor 221 is connected with the power supply unit 400 inside the power supply unit cavity 122, and the power supply unit 400 supplies power to the motor 221. The motor 221 is controlled by the control box 300. After the control box 300 receives an instruction (the instruction is implemented by a manner of manipulating a remote controller by an operator, and a control relationship between the remote controller and the control box 300 has a mature application in the prior art, which is not described in detail herein), the motor 221 is controlled to operate, and finally the propeller 223 is rotated, so as to generate a thrust force.

In order to ensure a reliability of the connection, a coupling or the like is provided between the motor 221 and the rotating shaft 222.

It can be understood that, in order to ensure normal and stable use of the motor 221, the motor 221 is preferably mounted in a sealed manner.

In this regard, the thruster 200 in the embodiment of the present application further includes a sealing mechanism 240. The motor 221 is disposed in the sealing mechanism 240 and is wrapped by the sealing mechanism 240. The sealing mechanism 240 includes a connecting base 241, a conical mounting base 242, and a sealing ring 243.

The connecting base 241 is installed at the connecting port 1221 at the tail of the power supply unit cavity 122, and the connecting base 241 is provided with a first groove 2411 along its circumferential direction. The conical mounting seat 242 is provided with a second groove 2421 along its circumferential direction to cooperate with the first grooves 2411. The sealing ring 243 is disposed at the junction of the first groove 2411 and the second groove 2421.

In this way, by means of the cooperation between the first groove 2411 and the second groove 2421, the motor 221 can be sealed in the space enclosed by the connecting base 241 and the conical mounting seat 242, thereby improving the working efficiency of the motor 221 and improving the propulsion efficiency of the entire thruster 200.

Please refer to Fig. 8, the connecting base 241 includes a circular bottom plate 241a and a circular recess 241b disposed in a middle of the circular bottom plate 241a. A convex rib 241c is formed on the circular recess 241b in a protruding manner. The convex rib 241c and the circular bottom plate 241a form the first groove 2411 together.

A middle position of the circular recess 241b is provided with a power mechanism mounting hole, and the motor 221 is mounted at the power mechanism mounting hole.

After the motor 221 is installed in place, the conical mounting seat 242 can be installed on the connecting base 241.

Please refer to Fig. 9, the end face of the conical mounting base 242 is recessed to form the second grooves 2421, and the width of the second grooves 2421 is adapted to the thickness of the convex ribs 241c, so that after the tapered mounting base 242 is mounted on the connecting base 241, the second grooves 2421 just snap on the convex rib 241c. The other part of the end face of the conical mounting base 242 is snapped into the first groove 2411, and at this time, the sealing connection between the tapered mount 242 and the connecting base 241 can be realized by combining the function of the sealing ring 243.

In order to achieve the installation of the conical mounting seat 242 and the connecting base 241, a threaded hole is provided in an end face of the conical mounting seat 242 and the first groove 2411 of the connecting base 241, and the installation and connection of the conical mounting seat 242 and the connecting base 241 can be achieved by means of a screw or a bolt.

In addition, a threaded hole is also disposed at an edge of the connection base 241, and the threaded hole exists to facilitate installation of the duct tube 210.

In this case, it can be understood that the motor 221, the conical mounting seat 242, and the duct tube 210 of the power mechanism 220 are disposed inside to outside of the thruster 200, respectively, and the motor 221 is located in a space enclosed by the conical mounting seat 242 and the connecting base 241, while other parts of the power mechanism 220, such as the rotating shaft 222 and the propeller 223, are located in the space of the duct tube 210.

In the embodiment of the present disclosure, the water-shielding mechanism 230 can automatically block the water inlet 211 located above, therefore, the water-shielding mechanism 230 can be implemented by the following example structure.

Please refer to Figs. 9 and 10, the water-shielding mechanism 230 includes water-shielding plate 231 and a counterweight body 232.

The water-shielding plate 231 is rotatably disposed in the thruster 200, and the counterweight body 232 is connected with the water-shielding plate 231, so that the water-shielding plate 231 is always located above the counterweight body 232 under the gravity of the counterweight body 232.

In this way, by means of the arrangement of the water-shielding plate 231 and the counterweight body 232, and by means of the gravity pulling action of the counterweight body 232, the power lifesaving device can be thrown into the water at any angle, and the water-shielding plate 231 can be autonomously rotated to the water inlet 211 located above, thereby greatly simplifying an use of the power lifesaving device and providing beneficial conditions for timely and quick rescue.

In order to achieve the rotation of the water-shielding mechanism 230, referring to Fig. 9, a groove 242a is provided on the conical mounting seat 242 along the circumferential direction of the conical mounting seat 242, and the water-shielding mechanism 230 is provided in the grooves 242a when being rotated.

In this case, the water-shielding mechanism 230 needs to have a shape matching the groove 242a. To this end, the water-shielding mechanism 230 is arranged as follows.

Please refer to Fig. 10, edges of two sides of the water-shielding plate 231 extend downwards to form a first connecting rib 2311, the water-shielding mechanism 230 further includes a second connecting rib 233 connected with the first connecting rib 2311, the first connecting rib 2311 and the second connecting rib 233 form an annular structure, the second connecting rib 233 is provided with an arc-shaped cavity 2331, and the counterweight body 232 is mounted in the arc-shaped cavity 2331.

So far, once the water-shielding mechanism 230 is installed in the groove 242a, the water-shielding mechanism 230 can spontaneously rotate under the influence of gravity, so that the water-shielding plate 231 is located above.

In some embodiments, the counterweight body 232 forms an integral structure with the second connecting rib 233.

Of course, in other embodiments, the counterweight body 232 and the second connecting rib 233 is detachably mounted.

In order to match the shape of the duct tube 210, the water-shielding plate 231 is designed as an arc structure.

In addition, a cover area of the water-shielding plate 231 is preferably slightly larger than the water inlet 211 of the thruster 200, so as to ensure that the water-shielding plate 231 completely shields the water inlet 211 thereabove.

The water-shielding plate 231 is preferably made of a lightweight corrosion-resistant material, such as aluminum, aluminum alloy, plastic, etc., and the counterweight body 232 is preferably made of a heavy corrosion-resistant material, such as stainless steel, etc.

Finally, in order to facilitate an operator in handling the forward direction and the route of the power lifesaving device, one LED indicator light 180 is further disposed on each side of the lifesaver main body 100, and the two LED indicators light 180 use different colors.

Although embodiments of the present disclosure have been shown and described, it would be appreciated by those skilled in the art that the above embodiments are explanatory and cannot be construed to limit the present disclosure, and changes, alternatives, and modifications can be made in the embodiments within the scope of the present disclosure.

Claims (19)

What is claimed is:

1. A power lifesaving device comprising:

a lifesaver main body with a bearing position for bearing a human body;

a thruster provided at a tail portion of the lifesaver main body, the thruster being used for generating a thrust force so as to enable the lifesaver main body to advance forward; and

a control box provided in the lifesaver main body and connected with the thruster, the control box being capable of controlling an opening and closing of the thruster;

the thruster includes a duct tube, a power mechanism, and a water-shielding mechanism;

the duct tube defines an accommodating cavity, a tube wall of the duct tube is provided with two water inlets arranged in an up-and-down direction in communication with the accommodating cavity, and a tail portion of the duct tube is provided with a water outlet in communication with the accommodating cavity; the power mechanism is disposed in the duct tube, and the power mechanism is used for enabling water to be discharged out of the duct tube in a direction from the water inlet to the water outlet, so as to generate a thrust force; at least a part of the water-shielding mechanism is disposed at the water inlet which is located above.

2. The power lifesaving device as claimed in claim 1, wherein the lifesaver main body comprises a housing, wherein the housing defines a control box chamber, the control box chamber is located in a middle of the housing, and the control box is disposed in the control box chamber.

3. The power lifesaving device as claimed in claim 2, wherein power lifesaving device further comprises power supply units for supplying power to the thruster; the housing also has power supply unit cavities; the power supply unit cavities are symmetrically disposed at two sides of the control box cavity; and the power supply units are arranged in the power supply unit cavities respectively.

4. The power lifesaving device as claimed in claim 3, wherein the power supply unit comprises a battery; or, the power lifesaving device further comprises a wireless charging module for charging the power supply unit; the housing also has a wireless charging module cavity; the wireless charging module cavity is located behind the control box cavity; and the wireless charging module is disposed in the wireless charging module cavity.

5. The power lifesaving device as claimed in claim 3, wherein a tail of the power supply unit cavity is provided with a connecting port, and the thruster is hermetically mounted at the connecting port.

6. The power lifesaving device as claimed in claim 5, further comprising a connecting base, wherein the connecting base is installed at the connecting port, and the thruster is installed on the connecting base.

7. The power lifesaving device as claimed in claim 1, wherein the duct tube comprises a first duct tube and a second duct tube connected with the first duct tube, and the water inlet is provided on the first duct tube.

8. The power lifesaving device as claimed in claim 7, wherein the second duct tube forms the water outlet, the water outlet being of necking-shaped.

9. The power lifesaving device as claimed in claim 1, wherein the lifesaver main body is of a left-right and up-down symmetrical structure.

10. The power lifesaving device as claimed in claim 2, wherein the housing comprises an upper housing and a lower housing, and the upper housing covers the lower housing; or, a head of the housing is symmetrically provided with at least two hand-grabbing holes.

11. The power lifesaving device as claimed in claim 3, wherein the power supply unit cavity arches to form limiting parts, so that a human body is limited between the limiting parts.

12. The power lifesaving device as claimed in claim 1, wherein at least a part of the water-shielding mechanism is used for blocking water from being discharged from the upper water inlet.

13. The power lifesaving device as claimed in claim 1, wherein the water inlet is of grid-shaped; or, the power mechanism comprises a motor, a rotating shaft connected with an output shaft of the motor, and a propeller disposed on the rotating shaft.

14. The power lifesaving device as claimed in claim 7, wherein a seal ring is provided at a joint of the first duct tube and the second duct tube.

15. The power lifesaving device as claimed in claim 12, wherein the thruster further comprises a conical mounting base sleeved on an outer periphery of the power mechanism, the conical mounting base is provided with a groove along its circumferential direction, and the water-shielding mechanism is rotatably provided in the groove.

16. The power lifesaving device as claimed in claim 15, wherein the water-shielding mechanism comprises a water-shielding plate and a counterweight body, wherein the water-shielding plate is rotatably disposed in the thruster, and the counterweight body is connected with the water-shielding plate, so that the water-shielding plate is always above the duct tube under a gravity of the counterweight body.

17. The power lifesaving device as claimed in claim 16, wherein the water-shielding plate is of arc-shaped; or a cover area of the water-shielding plate is greater than an area of the water inlet of the thruster.

18. The power lifesaving device as claimed in claim 16, wherein a first connecting rib extends downwards from two side edges of the water-shielding plate; the water-shielding mechanism further comprises a second connecting rib connected with the first connecting rib; the first connecting rib and the second connecting rib form an annular structure; the second connecting rib is provided with an arc-shaped cavity; and the counterweight body is installed in the arc-shaped cavity.

19. The power lifesaving device as claimed in claim 18, wherein the counterweight body and the second connecting ribs form an integral structure; or the counterweight body and the second connecting rib are detachably mounted.