Directional flotation rescue device

Abstract

The utility model provides a directional floating lifesaving device, wherein the directional floating lifesaving device comprises a floating body and a current receiving rudder fin, wherein the directional floating lifesaving device has a breaking current direction, the directional floating lifesaving device has smaller water flow resistance in the breaking current direction, wherein the current receiving rudder fin protrudes from the bottom surface of the floating body in the state of being inclined to the breaking current direction, so that when the directional floating lifesaving device is placed in water and water flow is formed based on the relative movement of the directional floating lifesaving device and water in the breaking current direction, the current receiving rudder fin generates directional floating force in the lateral direction of the breaking current direction under the impact of water flow, thereby realizing directional floating under the action of water flow.

Description

Technical Field

[0001] This utility model relates to the field of lifesaving equipment, and in particular to a directional floating lifesaving device. Background Technology

[0002] Currently, the most common water rescue equipment is the lifebuoy. Lifebuoys are typically made of cork, foam, or other lightweight materials, covered with canvas or plastic. When placed in water, they float on the surface. A person in the water relies on the lifebuoy for buoyancy by grabbing it. Therefore, the lifebuoy's effectiveness depends on whether the person in the water can grab it. In actual rescue operations, lifebuoys often need to be thrown to the person in the water by rescuers. However, the throwing distance by hand is limited, thus restricting the rescue distance. When the incident occurs in a wide river, it is difficult for rescuers on the bank to throw the lifebuoy to the center of the river. Even if the rescuer can reach the person in the water, the accuracy of the throw is crucial. Only by accurately throwing the lifebuoy to the person in the water so that they can grab it immediately can the lifebuoy be effectively used; otherwise, it will be swept away by the current. Even if rescuers throw the lifebuoy accurately, if the person in the water fails to grab it immediately, the lifebuoy will be washed away by the water, rendering it ineffective in the rescue.

[0003] To address this issue, refer to Figure 1 As shown, Chinese utility model patent CN2335887Y discloses a remotely controlled lifebuoy. The remotely controlled lifebuoy consists of a remotely controlled boat 1, a rope shaft 2, a rope directional ring 3, a traction rope 4, a traction ring 5, a guide water divider 6, a life belt 7, and a lifebuoy body 8. The rope shaft 2 is installed at the rear of the remotely controlled boat 1, and the rope directional ring 3 is provided at the very end of the remotely controlled boat 1. The traction rope 4 passes through the rope directional ring 3 and is wound around the rope shaft 2. The other end of the traction rope 4 is attached to the traction ring 5 of the guide water divider 6. The guide water divider 6 is attached to the side wall of the lifebuoy body 8. In use, the remotely controlled boat 1 is controlled by a remote control device to rush towards the person who has fallen into the water, so that the person can grab the lifebuoy body 8. On the one hand, the remote-controlled boat 1 can pull the lifebuoy body 8 to a relatively far distance, thus enabling long-distance rescue and overcoming the limitation of the rescue distance by the throwing distance of the rescuers; on the other hand, the remote-controlled boat 1 can accurately reach the person in the water with the lifebuoy body 8 through the control of the remote control device, thus overcoming the influence of the water flow on the position of the lifebuoy body 8.

[0004] However, a major reason for the widespread use of lifebuoys is their relatively low price compared to other lifesaving equipment, making them suitable for large-scale deployment. Adding remote-controlled boats significantly increases the cost of a single lifebuoy, and budget constraints prevent the large-scale pre-deployment of such lifebuoys at water's edge. Furthermore, the maintenance requirements of remote-controlled boats mean that these lifebuoys cannot be left outdoors indefinitely, hindering their effectiveness in emergencies. Additionally, remote-controlled boats rely on professional rescuers, making it difficult for ordinary people to operate the lifebuoys for rescue operations in emergencies. Therefore, even though the aforementioned patent was published at the end of the last century, the most common lifesaving equipment on the market is still the ordinary lifebuoy. In long-distance rescues, rescuers still rely on nearby swimmers to carry the lifebuoy to the drowning person, increasing the uncertainty of the rescue and posing a risk to the rescuers' safety. Utility Model Content

[0005] One objective of this invention is to provide a directional floating rescue device, wherein the directional floating rescue device can automatically float away from the shore, thereby overcoming the limitation of the rescue distance imposed by the throwing distance of rescuers.

[0006] Another objective of this invention is to provide a directional floating rescue device, wherein the directional floating rescue device achieves directional floating under the action of water flow without the need for an additional power device.

[0007] Another objective of this invention is to provide a directional floating rescue device that can float away from the shore without relying on an additional power unit, thereby avoiding the increased cost associated with adding a power unit.

[0008] Another objective of this invention is to provide a directional floating rescue device, which can achieve automatic directional floating while keeping costs under control, thereby facilitating large-scale deployment and improving the practicality of rescue equipment.

[0009] Another objective of this invention is to provide a directional floating rescue device, wherein the directional floating rescue device does not need to be thrown into the water, but only needs to be placed in the water in a specific direction, and the directional floating rescue device can float directionally off the shore, thus facilitating rescue operations.

[0010] Another objective of this invention is to provide a directional floating rescue device, wherein the directional floating rescue device can float off the shore on its own and is suitable for being placed in the water for a long period of time without being pushed ashore by the water flow, thereby facilitating timely rescue operations in case of an emergency.

[0011] Another objective of this invention is to provide a directional floating rescue device, which can float off the shore on its own without being carried by manpower to the vicinity of the person who has fallen into the water, thus effectively avoiding the risks and hazards caused by rescuers going into the water.

[0012] Another objective of this invention is to provide a directional floating rescue device, comprising a float and a current-receiving rudder fin. The directional floating rescue device has a current-breaking direction. When the directional floating rescue device is placed in water and a current is formed based on its relative motion with the water, the directional floating rescue device can be righted against the current. The current-receiving rudder fin protrudes from the bottom surface of the float in an inclined state relative to the current-breaking direction. When the directional floating rescue device is placed in water and a current is formed based on its relative motion with the water in the current-breaking direction, the current-receiving rudder fin is impacted by the current and generates a lateral directional floating force towards the current-breaking direction. Therefore, when the directional floating rescue device is deployed into the water, based on the action of the current, the directional floating rescue device will automatically swing towards the current-breaking direction inclined to the current-receiving rudder fin, causing the current to impact the current-receiving rudder fin, forming a certain directional floating direction laterally deflected from the current-breaking direction, thereby achieving directional floating under the action of the current.

[0013] Another objective of this invention is to provide a directional floating rescue device, wherein the directional floating rescue device achieves orientation towards the direction of the current breaking based on a directional rudder fin, wherein the directional rudder fin protrudes from the bottom surface of the float and has low water flow resistance in the direction of the current breaking, wherein when the directional floating rescue device is deployed in the water, based on the impact of the water flow on the surface of the directional rudder fin, the directional floating rescue device will automatically orient itself towards the direction of the current breaking to minimize water flow resistance, and based on the impact of the water flow on the current-receiving rudder fin, the directional floating rescue device can form a directional floating direction that is laterally deflected from the direction of the current breaking, thereby achieving directional floating under the action of the water flow.

[0014] Another objective of this invention is to provide a directional floating rescue device, wherein when the directional floating rescue device floats in the directional floating direction, the water flow on both sides of the directional rudder fin will form an orientation positioning for the directional floating rescue device. When the directional floating rescue device deflects its orientation, the directional rudder fin will cause water flow resistance and be impacted by the water flow, thereby enabling the directional floating rescue device to maintain the flow-breaking direction opposite to the water flow direction, and maintain the force of floating in the directional floating direction with the cooperation of the current-receiving rudder fin.

[0015] Another objective of this invention is to provide a directional floating rescue device, wherein the directional rudder fin is disposed on one side of the float, and under the impact of water flow, the directional floating rescue device is biased towards the side where the directional rudder fin is located and floats directionally.

[0016] Another objective of this invention is to provide a directional floating rescue device, wherein the directional floating rescue device is oriented towards the direction of the current breaking based on a string of floats, wherein the string of floats is formed by multiple floats connected in series, one end of the string of floats is connected to the float body, wherein when the directional floating rescue device is placed in the water and a water flow is formed based on the relative motion between the float body and the water, the string of floats is impacted by the water flow and keeps the series direction of the floats in the same direction as the water flow to obtain less water flow resistance, and oriented the float body towards the direction of the current breaking, and based on the impact of the water flow on the current-receiving rudder fin, the directional floating rescue device can form a certain directional floating direction that is laterally deflected from the direction of the current breaking, thereby achieving directional floating under the action of the water flow.

[0017] Another objective of this invention is to provide a directional floating rescue device, wherein the directional floating rescue device floats in a specific direction based on the impact of water flow, thereby eliminating the need for an additional power unit and helping to control the cost of the directional floating rescue device.

[0018] Another objective of this invention is to provide a directional floating rescue device, wherein the current-receiving rudder fin and the directional rudder fin are plate structures and stand upright protruding from the bottom surface of the float, wherein the current-receiving rudder fin is inclined to the directional rudder fin on the bottom surface of the float, thereby helping to protect the impact force of the water flow on the directional floating rescue device and facilitating the production and manufacturing of the directional floating rescue device.

[0019] Another objective of this invention is to provide a directional floating rescue device, wherein the float includes a flow-breaking end, a tail, and two guide walls connecting the flow-breaking end and the tail. The two guide walls have a curved guide section that gradually moves away from the flow-breaking end in a direction opposite to the flow-breaking direction, and a guide section connecting one end of the curved guide section away from the flow-breaking end and the tail. When the directional floating rescue device is deployed into the water, the float forms a smaller flow resistance at the flow-breaking end and a larger flow resistance perpendicular to the flow-breaking direction and at the tail, which helps the directional floating rescue device to maintain its orientation in the water.

[0020] Another objective of this invention is to provide a directional floating rescue device, wherein the current-receiving rudder fin has a front end and a rear end opposite to the front end, wherein the front end is close to the curved guide section of one of the guide walls, and the rear end is close to one end of the other guide wall connected to the tail. The current-receiving rudder fin obliquely spans the bottom of the float, thereby improving the force of the water flow on the directional floating rescue device and ensuring the directional effect of the directional floating rescue device.

[0021] Another objective of this invention is to provide a directional floating rescue device, wherein the directional floating rescue device includes a fender, wherein the fender is disposed on the side of the directional rudder fin away from the float and perpendicular to the directional rudder fin, thereby improving the directional effect of the directional rudder fin on the orientation of the directional floating rescue device.

[0022] Another objective of this invention is to provide a directional floating rescue device, wherein the directional rudder fin is connected to the centerline of the fender, that is, the fender is symmetrically distributed with the directional rudder fin as the boundary, forming two balancing wings below the directional rudder fin, which helps to improve the balance of the directional floating rescue device in the water and reduce the probability of the directional floating rescue device capsizing.

[0023] Another objective of this invention is to provide a directional floating rescue device, wherein the float has a centerline, which connects to the tail end from the flow-breaking end and is parallel to the flow-breaking direction, and wherein the two guide walls of the float are symmetrically distributed about the centerline, that is, one of the guide walls is rotated 180° about the centerline and then coincides with the other guide wall, thereby reducing the resistance of the float to the water flow and facilitating the directional floating rescue device.

[0024] Another objective of this invention is to provide a directional floating rescue device, wherein the directional floating rescue device includes a rescue rope, one end of which is connected to the float, and the other end is used to tie to the shore or for a rescuer to hold, thereby enabling the control of the directional floating rescue device's floating distance from the shore based on the length of the rescue rope, and enabling the rescue operation to be carried out by pulling the directional floating rescue device back to the shore through the rescue rope.

[0025] Another objective of this invention is to provide a directional floating rescue device, wherein the rescue rope is connected to the centerline and the float, thereby improving the force balance of the rescue rope on the float.

[0026] Another objective of this invention is to provide a directional floating rescue device, wherein the float has a rope-connecting hole at the center of the centerline, which extends through the top and bottom surfaces, and the rescue rope passes from the bottom surface of the float through the rope-connecting hole to the top surface of the float, thereby improving the force balance exerted on the float by the rescue rope.

[0027] Another objective of this invention is to provide a directional floating rescue device, wherein the directional floating rescue device further includes a handle, wherein the rescue rope is connected to the handle at the top surface of the float, so as to facilitate a person falling into the water to obtain buoyancy support based on the directional floating rescue device by holding the handle.

[0028] Another objective of this invention is to provide a directional floating rescue device, wherein the current-receiving rudder fin has a rope groove at its end facing the float, and the rescue rope is led out through the rope groove to help avoid the rescue rope from getting tangled in the current-receiving rudder fin and the directional rudder fin.

[0029] Another objective of this invention is to provide a directional floating rescue device, wherein the rescue rope extends from the side opposite to the side where the directional rudder fin is located to the shore, thereby enabling the rescue rope to provide a force opposite to the directional floating direction of the directional floating rescue device. This is suitable for controlling the floating distance and floating position of the directional floating rescue device, allowing the directional floating rescue device to accurately reach the vicinity of the person in the water. Thus, the directional floating rescue device can be handed over to the person in the water without the need for remote control towing devices and direct personnel transport, thereby controlling costs and ensuring the safety of rescue personnel while ensuring the rescue effect.

[0030] According to one aspect of the present invention, the present invention provides a directional floating rescue device, wherein the directional floating rescue device comprises: A float, wherein the directional floating rescue device has a current-breaking direction, and when the directional floating rescue device is placed in the water and a current is formed based on the relative motion with the water, the directional floating rescue device can be righted against the current-breaking direction under the action of the current based on the arrangement of directional rudder fins and / or float strings; A current-receiving rudder fin, wherein the current-receiving rudder fin protrudes from the bottom surface of the float at an angle to the direction of the current breaking, so as to correspond to the current-receiving rudder fin generating a lateral directional buoyancy force toward the direction of the current breaking when the directional floating life-saving device is placed in the water and a current is formed based on the relative motion between the current breaking direction and the water; and A lifeline, wherein one end of the lifeline is connected to the buoy and the other end is used to tie to the shore or for a rescuer to hold.

[0031] In one embodiment, the directional rudder fin protrudes from the bottom surface of the float and has low water flow resistance in the direction of breaking the current, wherein when the directional floating rescue device is placed in the water and a current is formed based on the relative motion between the float and the water, the directional rudder fin is influenced by the current and orients the float toward the direction of breaking the current.

[0032] In one embodiment, the float string is formed by a series of floats connected at one end to the float body. When the directional floating rescue device is placed in the water and a water flow is formed based on the relative motion between the float body and the water, the float string is impacted by the water flow and keeps the series direction of the floats in the same direction as the water flow, thereby pulling the float body toward the direction of breaking the flow.

[0033] In one embodiment, the distance between the current-receiving rudder fin and the directional rudder fin gradually decreases along the direction of the flow disruption.

[0034] In one embodiment, the directional rudder fin is disposed on one side of the float.

[0035] In one embodiment, the directional floating life-saving device includes a fender, wherein the fender is disposed on the side of the directional rudder fin away from the float.

[0036] In one embodiment, the current-receiving rudder fin and the directional rudder fin are configured in the form of plates and erected protruding from the bottom surface of the float.

[0037] In one embodiment, the float includes a flow-breaking end, a tail, and two guide walls connecting the flow-breaking end and the tail, wherein the two guide walls have a curved guide section that gradually moves away from the flow-breaking end in a direction opposite to the flow-breaking direction, and a guide section connecting one end of the curved guide section away from the flow-breaking end and one side of the tail.

[0038] In one embodiment, the flow-receiving rudder fin has a front end and a rear end opposite to the front end, wherein the front end approaches the curved flow-guiding section of one of the flow-guiding walls, and the rear end approaches one end of the other flow-guiding wall connected to the tail.

[0039] In one embodiment, the float has a centerline that connects to the tail end from the flow-breaking end and is parallel to the flow-breaking direction, wherein the two guide walls of the float are symmetrically distributed about the centerline as an axis of symmetry.

[0040] In one embodiment, the directional floating rescue device includes a rescue rope, one end of which is connected to the float and the other end is used to tie to the shore or for a rescuer to hold.

[0041] The further objectives and advantages of this invention will become fully apparent from the following description and accompanying drawings. Attached Figure Description

[0042] Figure 1 This is a remotely controlled lifebuoy disclosed in existing patent literature.

[0043] Figure 2 This is a schematic diagram illustrating the directional floating principle of the directional floating rescue device according to this utility model.

[0044] Figure 3 This is a schematic diagram of the principle structure of the directional floating rescue device according to a first embodiment of the present invention.

[0045] Figure 4 This is a schematic diagram of the directional floating rescue device according to the first embodiment of the present invention from one perspective.

[0046] Figure 5 This is a structural schematic diagram of the directional floating rescue device according to the first embodiment of the present invention from another perspective.

[0047] Figure 6 This is a structural schematic diagram of the directional floating rescue device according to the first embodiment of the present invention from another perspective.

[0048] Figure 7 This is a schematic diagram of an application scenario of the directional floating rescue device according to the first embodiment of the present invention.

[0049] Figure 8 This is a schematic diagram of another application scenario of the directional floating rescue device according to the first embodiment of the present invention.

[0050] Figure 9 This is a schematic diagram illustrating the orientation principle of the directional floating rescue device according to a second embodiment of the present invention.

[0051] Figure 10 This is a schematic diagram of an application scenario of the directional floating rescue device according to the second embodiment of the present invention.

[0052] Figure 11 This is a schematic diagram illustrating another application scenario of the directional floating rescue device according to the second embodiment of the present invention. Detailed Implementation

[0053] The following description is intended to disclose the present invention so that those skilled in the art can implement it. The preferred embodiments described below are merely examples, and other obvious variations will occur to those skilled in the art. The basic principles of the present invention defined in the following description can be applied to other embodiments, modifications, improvements, equivalents, and other technical solutions that do not depart from the spirit and scope of the present invention.

[0054] Those skilled in the art should understand that in the disclosure of this utility model, the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the above terms should not be construed as a limitation of this utility model.

[0055] It is understood that the term "a" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of an element can be one, while in another embodiment, the number of the element can be multiple, and the term "a" should not be understood as a limitation on the number.

[0056] This invention provides a directional floating rescue device, which can float in a directional manner under the action of water flow without the need for an additional power device, thus saving costs and keeping the cost controllable. Furthermore, it can controllably float to the vicinity of the person who has fallen into the water based on directional floating, ensuring the effectiveness of the rescue.

[0057] Specifically, please refer to the accompanying drawings in the specification of this utility model. Figure 2 The principle structure of the directional floating rescue device is illustrated. The directional floating rescue device includes a float 10 and a current-receiving rudder 20. The directional floating rescue device has a current-breaking direction. When the directional floating rescue device is placed in the water and a current is formed based on the relative motion with the water, the directional floating rescue device can be oriented against the current breaking direction under the action of the current. The current-receiving rudder 20 protrudes from the bottom surface of the float 10 in an inclined state to the current-breaking direction. When the directional floating rescue device is placed in the water and a current is formed based on the relative motion with the water in the current breaking direction, the current-receiving rudder 20 is impacted by the current and generates a lateral directional floating force towards the current-breaking direction, thereby achieving directional floating under the action of the current.

[0058] Corresponding to Figure 2As shown, when the directional floating rescue device is placed in the water flow, it is impacted by the water flow. The direction of the directional floating rescue device is opposite to the direction of the water flow. As the water flow impacts the current-receiving rudder fin 20, the current-receiving rudder fin 20 generates a guiding force F1. The water flow generates a water flow pushing force F2 in the same direction as the water flow. Furthermore, the water flow on both sides of the directional rudder fin 30 can prevent the orientation of the directional floating rescue device from deflecting. The directional floating rescue device as a whole is subjected to a certain directional buoyancy force F0 and will float in the direction of the directional buoyancy force F0.

[0059] Specifically, refer to Figure 3 As shown, the orientation principle of a directional floating rescue device according to a first embodiment of the present invention is illustrated. The directional floating rescue device further includes a directional rudder fin 30 in addition to the above-described principle structure. The directional rudder fin 30 protrudes from the bottom surface of the float 10 and has relatively low water flow resistance in the direction of breaking the current. When the directional floating rescue device is placed in the water and a current is formed based on the relative motion between the directional floating device and the water in the direction of breaking the current, the water flow experiences minimal resistance in the opposite direction of breaking the current. Based on the impact of the water flow on the surface of the directional rudder fin 30, the directional floating rescue device automatically orients itself towards the direction of breaking the current, opposite to the direction of the current. Based on the impact of the water flow on the current-receiving rudder fin 20, the directional floating rescue device can form a directional floating direction that is laterally deflected from the direction of breaking the current, thereby achieving directional floating under the action of the water flow.

[0060] Corresponding to Figure 3 As shown, the effect of the water flow on the directional rudder fin 30 will cause the directional floating rescue device to maintain the flow-breaking direction against the water flow, for example, corresponding to... Figure 3 When the orientation of the directional floating rescue device changes, the water flow impacts the surface of the directional rudder fin 30, and the directional rudder fin 30 generates a righting force F3. In addition, the water flow exerts a pushing force F4 on the directional rudder fin 30, which pushes the orientation of the directional floating rescue device to swing along the direction of the water flow. In this way, the cooperation between the current-receiving rudder fin 20 and the directional rudder fin 30 ensures that the directional floating rescue device floats in the correct direction.

[0061] In other words, when the directional floating rescue device floats in the directional floating direction, the water flow on both sides of the directional rudder fin 30 will form a directional positioning for the directional floating rescue device. When the directional floating rescue device deflects its direction, the directional rudder fin 30 will cause water flow resistance and be impacted by the water flow, causing the directional rudder fin 30 to swing in the direction of least water flow resistance. This allows the directional floating rescue device to maintain the flow-breaking direction opposite to the water flow direction, and with the cooperation of the current-receiving rudder fin 20, it maintains the force of floating in the directional floating direction.

[0062] In particular, in this embodiment of the present invention, the current-receiving rudder 20 and the directional rudder 30 are plate structures and are erected and protrude from the bottom surface of the float 10. The current-receiving rudder 20 is inclined to the directional rudder 30 on the bottom surface of the float 10, which helps to protect the impact force of the water flow on the directional floating life-saving device and facilitates the production and manufacturing of the directional floating life-saving device.

[0063] It is worth mentioning that in this utility model, the directional rudder fin 30 is disposed on one side of the float 10, so that under the impact of the water flow, the directional floating rescue device will drift towards the side where the directional rudder fin 30 is located.

[0064] Specifically, the distance between the current-receiving rudder 20 and the directional rudder 30 gradually decreases along the direction of the current-breaking action, so that the current-receiving rudder 20 is inclined to the directional rudder 30 on the bottom surface of the float 10. When the directional floating rescue device is deployed into the water, the direction of the current-breaking action is opposite to the direction of the water flow, thereby maintaining the force of floating in the directional floating direction.

[0065] Further reference is made to the accompanying drawings in the specification of this utility model. Figures 4 to 6 Specifically, the float 10 includes a flow-breaking end 11, a tail 12, and two guide walls 13 connecting the flow-breaking end 11 and the tail 12. The two guide walls 13 have a curved guide section 131 that gradually moves away from the flow-breaking end 11 in a direction opposite to the flow-breaking direction, and a guide section 132 that connects the end of the curved guide section 131 away from the flow-breaking end 11 and the side of the tail 12. When the directional floating rescue device is put into the water, the float 10 forms a small flow resistance at the flow-breaking end 11 and a large flow resistance perpendicular to the flow-breaking direction and the tail 12, which helps the directional floating rescue device to orient itself in the water and form directional floating in conjunction with the current-receiving rudder 20 and the directional rudder 30.

[0066] It is worth mentioning that, in application, the directional floating rescue device only needs to be placed in the river with the flow-breaking end 11 facing the opposite direction of the water flow and the side where the directional rudder fin 30 of the directional floating rescue device is located being the side away from the shore. The directional floating rescue device will then float towards the middle of the river on its own, thus floating away from the shore without the need for remote control towing devices or direct personnel transport, which can ensure the safety of rescuers. Furthermore, when a person falls into the water, they are easily swept towards the central area of ​​the river by the impact of the water flow. The directional floating rescue device can smoothly float away from the shore and reach the vicinity of the person who has fallen into the water.

[0067] Specifically, the current-receiving rudder fin 20 has a front end 21 and a rear end 22 opposite to the front end 21. The front end 21 is close to the curved guide section 131 of one of the guide walls 13, and the rear end 22 is close to the other guide wall 13 connected to one end of the tail 12. The current-receiving rudder fin 20 is obliquely spanned across the bottom of the float 10, which helps to increase the force of the water flow on the directional floating life-saving device and ensure the directional effect of the directional floating life-saving device.

[0068] Furthermore, the directional floating rescue device includes a fender 40, wherein the fender 40 is disposed on the side of the directional rudder fin 30 away from the float 10 and perpendicular to the directional rudder fin 30, thereby improving the directional effect of the directional rudder fin 30 on the orientation of the directional floating rescue device.

[0069] Specifically, since the directional rudder fin 30 is connected to the centerline of the fender 40, the fender 40 is symmetrically distributed with the directional rudder fin 30 as the boundary, forming two balancing wings below the directional rudder fin 30. This helps to improve the balance of the directional floating rescue device in the water and reduce the probability of the directional floating rescue device capsizing.

[0070] It is worth mentioning that in some embodiments of this utility model, the directional rudder fin 30 and the fender 40 are integrally formed, which helps to simplify the assembly process of the directional floating rescue device.

[0071] Furthermore, the float 10 has a centerline that connects to the tail 12 from the flow-breaking end 11 and is parallel to the flow-breaking direction. The two guide walls 13 of the float 10 are symmetrically distributed about the centerline, that is, one guide wall 13 is rotated 180° about the centerline and then coincides with the other guide wall. This helps to reduce the resistance of the float to the water flow and facilitates the directional floating life-saving device.

[0072] Furthermore, the directional floating rescue device includes a rescue rope 50, one end of which is connected to the float 10, and the other end is used to tie to the shore or for rescuers to hold, thereby enabling the directional floating rescue device to drift a certain distance from the shore based on the length of the rescue rope 50, and to pull the directional floating rescue device back to the shore by the rescue rope 50 to achieve rescue work.

[0073] Specifically, the lifeline 50 is connected to the centerline and the float 10, which helps to improve the force balance of the lifeline 50 on the float.

[0074] Preferably, the float 10 has a rope-connecting hole 101 at the center of the centerline, which extends through the top and bottom surfaces. The lifeline 50 passes from the bottom surface of the float 10 through the rope-connecting hole 101 to the top surface of the float 10, thereby improving the force balance exerted on the float 10 by the lifeline 50 when pulling it.

[0075] Furthermore, the directional floating rescue device further includes a handle 60, wherein the rescue rope 50 is connected to the handle 60 at the top surface of the float 10, so as to facilitate the person in the water to obtain buoyancy support based on the directional floating rescue device by holding the handle 60.

[0076] It is worth mentioning that, in this embodiment of the present invention, the handle 60 is an independently set handle loop, for example, made of a material such as plastic. In some embodiments, the handle 60 is a loop formed by the rescue rope 50.

[0077] Furthermore, a rope groove 201 is provided at the side end of the current-receiving rudder fin 20 near the float 10, through which the rescue rope 50 is led out, in order to help avoid the rescue rope 50 from getting tangled in the current-receiving rudder fin 20 and the directional rudder fin 30.

[0078] It is worth mentioning that the bottom surface of the float 10 is further provided with a rope loop 102, wherein the rope loop 102 is close to the curved guide section 131 on the side opposite to the side where the directional rudder fin 30 is located. After the rescue rope 50 is led out through the rope groove 201, it passes through the rope loop 102 and is led out. Thus, the rescue rope 50 can form a lead-out direction opposite to the direction of the directional buoyancy force F0, and be led out from the side opposite to the side where the directional rudder fin 30 is located to the shore.

[0079] Specifically, the rescue rope 50 extends from the side opposite to the side where the directional rudder fin 30 is located to the shore, thereby enabling the rescue rope 50 to provide a force opposite to the directional floating direction of the directional floating rescue device. This is suitable for controlling the floating distance and floating position of the directional floating rescue device, allowing the directional floating rescue device to accurately reach the vicinity of the person in the water. Thus, the directional floating rescue device can be handed over to the person in the water without the need for remote control towing devices and direct personnel transport, controlling costs and ensuring the safety of rescue personnel while ensuring the rescue effect.

[0080] Wherein the direction of the flow disruption is taken as forward, reference Figure 7 As shown, in this example, the directional rudder fin 30 is positioned on the left side of the directional floating rescue device, which will float directionally to the left rear. Therefore, the directional floating rescue device is suitable for right bank rescue. The other end of the rescue rope 50 is tied to the anchor point 200 on the right bank 100, or held by the rescue personnel on the bank 100. By controlling the position of the anchor point 200 and the length of the rescue rope 50, it can float to the designated area.

[0081] It is worth mentioning that, based on the disclosure of this utility model, the directional floating rescue device is also applicable to left-bank rescue, see reference. Figure 8 As shown, the directional rudder fin 30 is located on the right side of the directional floating rescue device, which will float directionally to the left rear. The other end of the rescue rope 50 is tied to the anchor point 200 on the left riverbank 100, or held by the rescue personnel on the riverbank 100. By controlling the position of the anchor point 200 and the length of the rescue rope 50, it can float to the designated area.

[0082] Specifically, the directional floating rescue device can continuously generate a directional buoyancy force F0 under the action of water flow. Under the pull of the rescue rope 50, the directional floating rescue device can float in the middle of the river for a long time. That is, one end of the rescue rope 50 is tied to the anchor point 200 on the riverbank 100, and the directional floating rescue device is placed in the water. This allows the directional floating rescue device to be placed in the water in preparation for a long time without being washed ashore by the water flow. This facilitates timely deployment in rescue work in case of emergency and is easy to maintain.

[0083] It is worth mentioning that, under the constraint that the current-receiving rudder fin 20 is inclined to the bottom surface of the float 10 relative to the directional rudder fin 30, the current-receiving rudder fin 20 can be either an integral structure or formed by a row of multiple plates facing the same direction.

[0084] It is understood that, given that the directional rudder fin 30 has relatively low water flow resistance in the direction of breaking the flow, and that when the directional floating rescue device forms a water flow due to the relative motion between the directional rudder fin and the water in the direction of breaking the flow, the current-receiving rudder fin 20 generates a lateral directional buoyancy force towards the direction of breaking the flow due to the impact of the water flow, the structure of the current-receiving rudder fin 20 and the directional rudder fin 30 does not constitute a limitation of this utility model. The current-receiving rudder fin 20 and the directional rudder fin 30 can be either a plate structure as shown in this embodiment of the utility model, or other water-blocking or water-breaking structures. For example, the directional rudder fin 30 may have a structural design that gradually thins along the direction of breaking the flow to reduce the resistance of the directional rudder fin 30 to the water in the direction of breaking the flow, thereby improving the water-breaking effect of the directional rudder fin 30.

[0085] Further, refer to Figure 9 As shown, the orientation principle of the directional floating rescue device according to the second embodiment of the present invention is illustrated. In the second embodiment of the present invention, the directional floating rescue device further includes a float string 30A relative to the principle structure. The float string 30A is formed by multiple floats connected in series. One end of the float string 30A is connected to the float body 10. When the directional floating rescue device is placed in the water and a water flow is formed based on the relative motion between the float body 10 and the water, the float string 30A is impacted by the water flow and keeps the series direction of the floats in the same direction as the water flow, thereby pulling the float body 10 towards the direction of breaking the flow. This causes the current-receiving rudder 20 to tilt towards the water flow. Based on the impact of the water flow on the current-receiving rudder 20, the directional floating rescue device can form a directional floating direction that is laterally deflected towards the direction of breaking the flow, thereby achieving directional floating under the action of the water flow.

[0086] It is worth mentioning that, in the accompanying drawings of this utility model specification... Figures 4 to 6 The structure shown can also be applied to the second embodiment of this utility model; therefore, in combination with Figures 4 to 6 One end of the float string 30A is connected to the tail 12 of the float 10 so that, under the action of the water flow, it is arranged from the tail 12 of the float 10 along the water flow direction so that the flow-breaking end 11 of the float 10 faces the flow-breaking direction to achieve a fixed orientation effect.

[0087] Wherein the direction of the flow disruption is taken as forward, reference Figure 10 and Figure 11 As shown, the directional floating rescue device described in the second embodiment is also applicable to both left-bank and right-bank rescues, corresponding to... Figure 10As shown, the rescue rope 50 extends from the right side of the float 10 and is anchored at the right bank anchor point 200. The current-following rudder fin 20 gradually increases in distance from the right bank along the current-breaking direction. The directional floating rescue device will float directionally to the left rear, suitable for right bank rescue. Corresponding to Figure 11 As shown, the rescue rope 50 is led out from the left side of the float 10 and tied to the anchor point 200 on the left bank. The distance between the current-receiving rudder fin 20 and the left bank gradually increases along the direction of breaking the current. The directional floating rescue device will float directionally to the left rear side, which is suitable for left bank rescue.

[0088] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0089] Those skilled in the art should understand that the embodiments of the present invention described above and shown in the accompanying drawings are merely examples and do not limit the present invention. The purpose of the present invention has been fully and effectively achieved. The functions and structural principles of the present invention have been shown and explained in the embodiments. Without departing from the stated principles, the implementation of the present invention may have any variations or modifications.

Claims

1. A directional floating rescue device, characterized in that: include: A float, wherein the directional floating rescue device has a current-breaking direction, and when the directional floating rescue device is placed in the water and a current is formed based on the relative motion with the water, the directional floating rescue device can be righted against the current-breaking direction under the action of the current based on the arrangement of directional rudder fins and / or float strings; A current-receiving rudder fin, wherein the current-receiving rudder fin protrudes from the bottom surface of the float at an angle to the direction of the current breaking, so as to correspond to the current-receiving rudder fin generating a lateral directional buoyancy force toward the direction of the current breaking when the directional floating life-saving device is placed in the water and a current is formed based on the relative motion between the current breaking direction and the water; and A lifeline, wherein one end of the lifeline is connected to the buoy and the other end is used to tie to the shore or for a rescuer to hold.

2. The directional floating rescue device according to claim 1, wherein the directional rudder fin protrudes from the bottom surface of the float and the directional rudder fin has a small water flow resistance in the direction of breaking the current, wherein when the directional floating rescue device is placed in the water and a water flow is formed based on the relative motion between the float and the water, the directional rudder fin is affected by the water flow and orients the float towards the direction of breaking the current.

3. The directional floating rescue device according to claim 1, wherein the float string is formed by multiple floats connected in series, wherein one end of the float string is connected to the float body, wherein when the directional floating rescue device is placed in the water and a water flow is formed based on the relative motion between the float body and the water, the float string is impacted by the water flow and maintains the series direction of the floats in the same direction as the water flow, thereby pulling the float body toward the direction of breaking the flow.

4. The directional floating rescue device according to claim 2, wherein the distance between the current-receiving rudder fin and the directional rudder fin gradually decreases along the direction of the current-breaking action.

5. The directional floating rescue device according to claim 4, wherein the directional rudder fin is disposed on one side of the float.

6. The directional floating rescue device according to claim 5, wherein the directional floating rescue device includes a fender, wherein the fender is disposed on the side of the directional rudder fin away from the float.

7. The directional floating rescue device according to claim 2, wherein the current-receiving rudder fin and the directional rudder fin are arranged in the form of plates and erected protruding from the bottom surface of the float.

8. The directional floating rescue device according to any one of claims 1 to 7, wherein the float comprises a flow-breaking end, a tail, and two guide walls connecting the flow-breaking end and the tail, wherein the two guide walls have a curved guide section that gradually moves away from the flow-breaking end in a direction opposite to the flow-breaking direction, and a guide section connecting one end of the curved guide section away from the flow-breaking end and one side of the tail.

9. The directional floating rescue device according to claim 8, wherein the current-receiving rudder fin has a front end and a rear end opposite to the front end, wherein the front end approaches the curved flow-guiding section of one of the flow-guiding walls, and the rear end approaches one end of the other flow-guiding wall connected to the tail.

10. The directional floating rescue device according to claim 9, wherein the float has a centerline, the centerline is connected from the flow-breaking end to the tail and is parallel to the flow-breaking direction, wherein the two guide walls of the float are symmetrically distributed about the centerline as an axis of symmetry.

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