An underwater emergency rescue device

Abstract

The application discloses an underwater emergency rescue device and relates to the technical field of underwater rescue, which comprises a rescue floating plate, a water-encountering anchoring mechanism movably arranged on the inner wall of the rescue floating plate and used for increasing an anchor point after the rescue floating plate is put into water, and a cavity formed in the bottom of the outer wall of the rescue floating plate. The water-encountering anchoring mechanism comprises a reel rotatably arranged in the cavity in the bottom of the outer wall of the rescue floating plate through a rotating shaft. The outer wall of the reel is connected with an anchoring block through a traction rope. The anchoring block has a hollow structure. The water-encountering anchoring mechanism can make the weight-increasing block in the anchoring block absorb water and increase weight after the rescue floating plate is put into water, so that the overall density of the anchoring block is increased to realize sinking, a ship anchor type stationary anchor point is formed, the rescue floating plate is pulled and constrained, and the problem that a traditional throwing floating plate is easily washed away by turbulent water flow due to the light self-weight and the lack of an underwater anchoring structure is solved.

Description

Technical Field

[0001] This invention relates to the field of water rescue technology, specifically to an underwater emergency rescue device. Background Technology

[0002] Throwable rescue floats are emergency water rescue components that can be deployed over long distances. Compared to fixed underwater rescue equipment, they can be thrown directly from the shore to the person in the water in dangerous situations where rescuers cannot enter the water nearby. They can quickly provide temporary buoyancy support, slow down the sinking speed of the person in the water, and buy valuable time for on-site rescue. They are widely used in high-risk water rescue scenarios such as wild rivers, steep banks, and rapid currents.

[0003] Throwable rescue floats rely primarily on an integral foam float for buoyancy. They are lightweight, structurally reliable, and can meet emergency floating needs in typical calm water and gentle shoreline scenarios. They can be quickly deployed by manual throwing and are currently a commonly used life-saving equipment for pre-positioned emergency rescue in waterways. The rescue floats adopt an integrated fixed structure design, which can stably play a life-saving role in typical calm waters. However, due to their own weight and overall shape, they have limitations in adapting to complex conditions such as turbulent waters and steep shorelines.

[0004] In scenarios with rapid water flow, existing floating boards are relatively lightweight and easily drift away due to the impact of the water flow after entering the water. They are difficult to stay stably next to people who have fallen into the water and cannot provide continuous buoyancy support. This can easily cause people who have fallen into the water to lose support and sink rapidly, missing the best rescue opportunity.

[0005] For scenarios where the banks are steep and rescuers cannot get close, the existing floating boards are generally too large and have high wind resistance when thrown. The accuracy of long-distance throwing is limited, and the landing point is prone to deviation and being too far away from the person who has fallen into the water. They cannot provide timely emergency floating support for the person who has fallen into the water and cannot meet the needs of long-distance and accurate rescue in high-risk and complex terrain.

[0006] To address the aforementioned issues, there is an urgent need for innovative designs based on existing underwater emergency rescue equipment. Summary of the Invention

[0007] The present invention addresses the problem that existing technical solutions are too simplistic and provides a solution that is significantly different from existing technologies. Specifically, the purpose of the present invention is to provide an underwater emergency rescue device to solve the problems mentioned in the background art, such as the ease with which throwable rescue floats drift away in turbulent waters, insufficient accuracy in long-distance throwing, and difficulty in providing stable emergency floating support for people who have fallen into the water in complex and high-risk waters.

[0008] To achieve the above objectives, the present invention provides the following technical solution: an underwater emergency rescue device, comprising a rescue float, and further comprising: The water-emerging anchoring mechanism is movable on the inner wall of the rescue buoy to add anchor points after the rescue buoy enters the water, which can maintain the stability of the rescue buoy as much as possible in turbulent water. A cavity is provided at the bottom of the outer wall of the rescue float; The water-resistant anchoring mechanism includes a reel that is rotatably mounted in the bottom cavity of the outer wall of the rescue float via a rotating shaft. An anchoring block is connected to the outer wall of the reel via a traction rope. The anchoring block has a hollow internal structure and a weight-increasing block is provided on the inner wall of the anchoring block. The bottom of the outer wall of the anchor block has a sloping structure; An expandable buoy mechanism is installed on the outer wall of the rescue buoy. It is used to deform and expand after the rescue buoy enters the water, which can enhance the buoyancy of the rescue buoy itself and increase the area of ​​the rescue buoy, thereby increasing the probability that the person who has fallen into the water will hit the rescue buoy. The outer wall of the rescue buoy is provided with grooves; The expandable float mechanism includes symmetrically arranged limiting expansion plates on the left and right sides inside the groove of the rescue float, and a folding float is connected to one side of the outer wall of the limiting expansion plate.

[0009] Preferably, push plates are symmetrically slidably arranged on both sides of the bottom of the outer wall of the rescue float via a sliding groove assembly; A compression spring is provided on one side of the outer wall of the push plate.

[0010] Preferably, insert plates are symmetrically slidably arranged on both sides of the outer wall of the rescue float via a sliding groove assembly; Compression springs are provided on both sides of the outer wall of the insert plate.

[0011] Preferably, the rescue float is provided with release expansion plates that are symmetrically and movable inside the groove. Telescopic rods are provided on both sides of the folding float. An expansion spring is provided around the outer wall of the telescopic rod.

[0012] Preferably, the anchor block is trapezoidal; A water inlet is provided at the top of the outer wall of the anchor block; The anchor block is made of rigid plastic; The length of the anchor block is adapted to the length of the bottom cavity of the outer wall of the rescue float.

[0013] Preferably, the weight-adding block is rectangular. The weight-adding block is made of water-absorbing and expanding rubber.

[0014] Preferably, one side of the outer wall of the push plate is in contact with the inclined structure at the bottom of the outer wall of the anchor block; The outer wall of the push plate is provided with an insertion port; The diameter of the push plate insertion port is slightly larger than the diameter of the bottom of the outer wall of the insertion plate.

[0015] Preferably, one end of the compression spring is connected to one side of the outer wall of the push plate; The other end of the compressed spring is connected to a sliding assembly located at the bottom of the outer wall of the rescue float.

[0016] Preferably, one end of each of the two pressure springs is connected to a sliding assembly provided on both sides of the outer wall of the rescue float. The other end of the compression spring is connected to both sides of the outer wall of the insert plate.

[0017] Preferably, the two ends of the outer wall of the limiting expansion plate on both sides are L-shaped; Both ends of the release expansion plate are limited by the "L"-shaped structure at both ends of the outer wall of the limiting expansion plate.

[0018] Compared with the prior art, the beneficial effects of the present invention are: 1. By setting up a water-touch anchoring mechanism, after the rescue buoy enters the water, the weight-adding blocks inside the anchoring block absorb water and increase in weight. The overall density of the anchoring block increases, causing it to sink and form a ship anchor-like anchor point that pulls and restrains the rescue buoy. This solves the problem that traditionally thrown buoys are lightweight and lack underwater anchoring structures, making them easy to be swept away by turbulent waters. It allows the rescue buoy to remain near the person who has fallen into the water, ensuring a continuous supply of emergency buoyancy and improving the stability and reliability of the rescue buoy in turbulent water conditions.

[0019] 2. The expandable floating mechanism ensures that the limiting expansion plate, release expansion plate, and folding float are in a retracted and stored state during the throwing process. The overall size of the equipment is small, the throwing wind resistance is low, and the accuracy of long-distance throwing is improved. After entering the water, the folding float is deformed and expanded by the linkage of the telescopic rod and the expansion spring, which increases the buoyancy reserve and water surface coverage of the rescue float, compensates for the stress caused by the sinking of the anchor block, increases the probability of the person falling into the water touching the rescue float, and improves the rescue adaptability and rescue success rate of the equipment in complex water environments. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0021] Figure 2 This is a schematic diagram of the structure of the rescue float, the water-tight anchoring mechanism, and the expandable float mechanism of the present invention.

[0022] Figure 3 This is a schematic diagram of the overall structure of the water-resistant anchoring mechanism and the expandable float mechanism of the present invention, with the rescue float removed.

[0023] Figure 4 This is a bottom view of the overall structure of the water-resistant anchoring mechanism and the expandable float mechanism of the present invention, as well as the structure with the rescue float removed.

[0024] Figure 5 This is a schematic diagram of the internal structure of the rescue float, water-touch anchoring mechanism, and expandable float mechanism of the present invention, with the top of the rescue float removed. Figure 6 This is a top view of the internal structure of the rescue float, water-touch anchoring mechanism, and expandable float mechanism of the present invention, with the top of the rescue float removed. Figure 7 This is a schematic diagram of the structure of the limiting expansion plate, the release expansion plate, and the folding float plate of the present invention; Figure 8 This is a schematic diagram of the structure of the rescue float, push plate, and insert plate of the present invention; Figure 9 This is a schematic diagram of the structure of the anchor block, push plate, and insert plate of the present invention; Figure 10 This is a cross-sectional view of the internal structure of the rescue float and water-tight anchoring mechanism of the present invention. Figure 11 This is a cross-sectional view of the internal structure of the rescue float and water-tight anchoring mechanism of the present invention. Figure 12 This is a schematic diagram of the external structure of the limiting expansion plate of the present invention; Figure 13 This is a schematic diagram of the bottom structure of the limiting expansion plate of the present invention; Figure 14 This is a schematic diagram showing the positional structure of the push plate and the insert plate of the present invention; Figure 15 This is a schematic diagram showing the positional structure of the anchor block, push plate, and insert plate of the present invention; Figure 16 A front view showing the positions of the anchor block, push plate, and insert plate of the present invention; Figure 17 This is a schematic diagram illustrating the motion principle of the limiting expansion plate, the release expansion plate, and the folding float plate of the present invention. Figure 18 This is a bottom view showing the motion principle of the limiting expansion plate, the release expansion plate, and the folding float plate of the present invention; Figure 19 This is a schematic diagram of the push plate of the present invention; Figure 20 This is a schematic diagram of the insert plate of the present invention; Figure 21 This is a bottom view of the structure of the anchor block of the present invention; Figure 22 This is a top view of the anchor block structure of the present invention; Figure 23 This is a schematic diagram of the internal structure of the anchoring block and the weight-adding block of the present invention.

[0025] In the diagram: 1. Rescue float; 2. Water anchoring mechanism; 201. Anchoring block; 202. Reel; 203. Push plate; 204. Compression spring; 205. Insert plate; 206. Pressure spring; 207. Weight block; 3. Expandable float mechanism; 301. Limiting expansion plate; 302. Release expansion plate; 303. Folding float; 304. Telescopic rod; 305. Expansion spring. Detailed Implementation

[0026] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0027] Please see Figures 1 to 23 The present invention provides a technical solution: an underwater emergency rescue device, including a rescue float 1, and further comprising: The water-emerging anchoring mechanism 2 is movably installed on the inner wall of the rescue float 1 to add anchor points after the rescue float 1 enters the water, so as to maintain the stability of the rescue float 1 as much as possible in turbulent water. A cavity is provided at the bottom of the outer wall of the rescue float 1; The water-resistant anchoring mechanism 2 includes a roller 202 that is rotatably mounted in the bottom cavity of the outer wall of the rescue float 1 via a rotating shaft. An anchoring block 201 is connected to the outer wall of the roller 202 via a traction rope. The anchoring block 201 has a hollow structure inside and a weight-increasing block 207 is provided on the inner wall of the anchoring block 201. The bottom of the outer wall of anchor block 201 has a sloping structure; The expandable float mechanism 3 is set on the outer wall of the rescue float 1. It is used to deform and expand after the rescue float 1 enters the water, which can enhance the buoyancy of the rescue float 1 itself and increase the area of ​​the rescue float 1, thereby increasing the probability that the person who fell into the water will touch the rescue float 1. The outer wall of the rescue pontoon 1 has grooves; The expandable float mechanism 3 includes a limiting expansion plate 301 that is symmetrically arranged on the left and right sides inside the groove of the rescue float 1, and a folding float 303 is connected to one side of the outer wall of the limiting expansion plate 301.

[0028] In this embodiment, by setting up a water-touch anchoring mechanism 2, after the rescue float 1 enters the water, the weight-adding block 207 inside the anchoring block 201 absorbs water and increases in weight. The overall density of the anchoring block 201 increases, causing it to sink and form a ship anchor-like anchor point that pulls and constrains the rescue float 1. This solves the problem that traditionally thrown floats are lightweight and lack underwater anchoring structures, making them easy to be swept away by turbulent currents. This allows the rescue float 1 to remain near the person who has fallen into the water, ensuring a continuous supply of emergency buoyancy and improving the stability and reliability of the rescue float 1 in turbulent water conditions.

[0029] Push plates 203 are symmetrically slidably installed on both sides of the bottom of the outer wall of the rescue floating plate 1 via a sliding groove assembly; A compression spring 204 is provided on one side of the outer wall of the push plate 203.

[0030] In this embodiment, the expandable float mechanism 3 enables the limiting expansion plate 301, the release expansion plate 302, and the folding float 303 to be in a retracted and stored state during the throwing process. The overall size of the equipment is small, the throwing wind resistance is low, and the accuracy of long-distance throwing is improved. After entering the water, the folding float 303 is deformed and expanded by the linkage of the telescopic rod 304 and the expansion spring 305, which increases the buoyancy reserve and water surface coverage area of ​​the rescue float 1, compensates for the force impact caused by the sinking of the anchor block 201, increases the probability of the person falling into the water touching the rescue float 1, and improves the rescue adaptability and rescue success rate of the equipment in complex water environments.

[0031] Insert plates 205 are symmetrically slidably installed on both sides of the outer wall of the rescue floating plate 1 via a sliding groove assembly; Compression springs 206 are provided on both sides of the outer wall of the insert plate 205.

[0032] In this embodiment, a handle is provided at the top of the outer wall of the rescue float 1. In situations such as rapid currents or steep terrain, where rescuers cannot quickly enter the water to rescue the person in distress, and the person in distress needs temporary protection to prevent sinking, the rescuer can hold the handle at the top of the outer wall of the rescue float 1. To better match the body size of the rescuer, handles are provided on both sides of the top of the outer wall of the rescue float 1. The rescuer can choose a gripping posture according to the actual situation and throw the rescue float 1 in a relatively comfortable posture. Traditional floats are large in size and light in weight. In order to ensure that the landing position is as close as possible to the person in distress, the rescue float 1 is much smaller in size than traditional floats. This ensures that the landing position of the rescue float 1 is as close as possible to the person in distress.

[0033] The rescue float 1 has a release expansion plate 302 that is symmetrically and movable inside the groove. Telescopic rods 304 are provided on both sides of the folding float 303; An expansion spring 305 is provided around the outer wall of the telescopic rod 304.

[0034] In this embodiment, after the rescue float 1 falls into the water, it will first float on the surface. When the current is rapid, in order to ensure the stability of the rescue float 1 and prevent it from being swept away by the water, the anchor block 201 in the bottom cavity of the outer wall of the rescue float 1 will slowly sink to the bottom due to its own material (the hard plastic itself has a certain weight, but this weight is only for sinking after entering the water and will not increase the burden on the rescuers to throw it). However, the weight of the anchor block 201 alone cannot guarantee that it will sink much. After the anchor block 201 sinks, water will enter through the water inlet at the top of the anchor block 201. At this time, the weight-adding block 207 inside the anchor block 201 will quickly absorb water and expand after encountering water. The volume, weight and density of the weight-adding block 207 will change after absorbing water.

[0035] Anchor block 201 is trapezoidal; An inlet is provided at the top of the outer wall of the anchor block 201; The anchor block 201 is made of rigid plastic; The length of the anchor block 201 is adapted to the length of the bottom cavity of the outer wall of the rescue float 1.

[0036] In this embodiment, after the anchor block 201 sinks, water will enter through the water inlet at the top of the anchor block 201. At this time, the weight-increasing block 207 inside the anchor block 201 will quickly absorb water and expand after encountering water. The volume, weight, and density of the weight-increasing block 207 will change after absorbing water (due to the material of the water-absorbing and expanding rubber, it can quickly absorb a large amount of water). At this time, the anchor block 201 will sink because the weight-increasing block 207 quickly becomes heavier. When the anchor block 201 sinks, it will fall vertically along the inner wall of the cavity at the bottom of the outer wall of the rescue float 1 (because the length of the anchor block 201 matches the length of the cavity at the bottom of the outer wall of the rescue float 1). At this time, the rescue float 1 will tend to be stable, ensuring that it is not swept away by the turbulent water flow in a short time.

[0037] Weight block 207 is rectangular; The weighting block 207 is made of water-absorbing and swellable rubber.

[0038] In this embodiment, when the anchor block 201 falls, the inclined surface at the bottom of the outer wall of the anchor block 201 will press against one side of the outer wall of the push plate 203, causing the push plate 203 to slide along the other side after being pressed. After the push plate 203 slides a certain distance to the other side, the slot on the outer wall of the push plate 203 will be aligned with the bottom of the outer wall of the insert plate 205. At this time, since the push plate 205 and the pressure spring 206 are no longer limited by the outer wall of the push plate 203, the pressure spring 206 will release its elastic force to drive the insert plate 205 to slide downward. At this time, the insert plate 205 will be inserted into the slot of the push plate 203 (in normal condition, the pressure spring 206 is in a contracted state and stores elastic force, and because the insert plate 205 is limited by the outer wall of the push plate 203, the elastic force of the pressure spring 206 is in a state of waiting to be released).

[0039] One side of the outer wall of the push plate 203 is in contact with the inclined structure at the bottom of the outer wall of the anchor block 201; The outer wall of the push plate 203 is provided with an insertion port; The diameter of the insertion port of push plate 203 is slightly larger than the diameter of the bottom of the outer wall of insertion plate 205.

[0040] In this embodiment, after the anchor block 201 sinks to the position where it is disengaged from the push plate 203, the push plate 203 is already inserted into the socket by the insert plate 205. Therefore, when the compression spring 204 returns to its original position, it will be limited by the sockets of the insert plate 205 and the push plate 203. After the insert plate 205 is inserted into the slot of the push plate 203, the limiting expansion plate 301 is no longer limited by the insert plate 205, causing the telescopic rod 304 to release its elastic force and pull the expansion spring 305. After being pulled, the telescopic rod 304 and the expansion spring 305 will cause the limiting expansion plate 301 to pop out (e.g., Figure 6 As shown, one end of the telescopic rod 304 and the expansion spring 305 are connected to the limiting expansion plate 301 and the release expansion plate 302, and the other end is connected to the inner wall of the groove of the rescue float 1.

[0041] One end of the compression spring 204 is connected to one side of the outer wall of the push plate 203; The other end of the compression spring 204 is connected to a sliding assembly located at the bottom of the outer wall of the rescue float 1.

[0042] In this embodiment, after the limiting expansion plate 301 is ejected, the folding float 303 will open. At the same time, after the limiting expansion plate 301 is ejected, the "L"-shaped structure of the limiting expansion plate 301 will disengage from the position of the release expansion plate 302, causing the telescopic rod 304 and the expansion spring 305 at the release expansion plate 302 to eject the release expansion plate 302. At the same time, the folding float 303 at the release expansion plate 302 will also open. After the folding float 303 opens, the buoyancy of the rescue float 1 will be increased (because the anchor block 201 is in a submerged state, the buoyancy needs to be increased in order to ensure the stability of the rescue float 1). At the same time, the area of ​​the rescue float 1 will be increased, increasing the probability that the person who has fallen into the water will touch the rescue float 1.

[0043] One end of each of the two pressure springs 206 is connected to a sliding assembly installed on both sides of the outer wall of the rescue float 1; The other end of the compression spring 206 is connected to both sides of the outer wall of the insert plate 205.

[0044] In this embodiment, after use, the user can turn the anchor block 201 upside down and let it air dry slowly at room temperature to dehydrate the weight-adding block 207. Then, the anchor block 201 is re-rolled into the cavity at the bottom of the outer wall of the rescue float 1 through the roller 202, and the limiting expansion plate 301 and the release expansion plate 302 are inserted into the groove of the rescue float 1. The insert plate 205 is then pulled upwards again. After the insert plate 205 is reset, the compression spring 204 will automatically reset because the limiting of the insert plate 205 is gone.

[0045] The two ends of the outer wall of the two side limiting expansion plates 301 are L-shaped; Both ends of the release expansion plate 302 are limited by the "L"-shaped structure at both ends of the outer wall of the limiting expansion plate 301.

[0046] In this embodiment, after the limiting expansion plate 301 is ejected, the folding float 303 will open. At the same time, after the limiting expansion plate 301 is ejected, the "L"-shaped structure of the limiting expansion plate 301 will disengage from the position of the release expansion plate 302, causing the telescopic rod 304 and the expansion spring 305 at the release expansion plate 302 to eject the release expansion plate 302. At the same time, the folding float 303 at the release expansion plate 302 will also open. After the folding float 303 opens, the buoyancy of the rescue float 1 will be increased (because the anchor block 201 is in a submerged state, the buoyancy needs to be increased in order to ensure the stability of the rescue float 1). At the same time, the area of ​​the rescue float 1 will be increased, increasing the probability that the person who has fallen into the water will touch the rescue float 1.

[0047] Working principle: When using this type of underwater emergency rescue equipment, such as Figure 1 As shown, the top of the outer wall of the rescue float 1 is equipped with a handle. In situations where the current is rapid or the terrain is treacherous, rescuers cannot quickly enter the water to rescue the person who has fallen into the water. The person in the water needs temporary protection to prevent them from sinking. Rescuers can hold the handle on the top of the outer wall of the rescue float 1. To better match the size of the rescuers, handles are provided on both sides of the top of the outer wall of the rescue float 1. Rescuers can choose a gripping posture according to the actual situation and throw the rescue float 1 in a relatively comfortable position. Traditional floats are large in size and light in weight. In order to ensure that the landing position is as close as possible to the person in the water, the rescue float 1 is much smaller in size than traditional floats. This ensures that the landing position of the rescue float 1 is as close as possible to the person in the water.

[0048] After the rescue float 1 is lowered into the water, it will initially float on the surface. In turbulent water, to ensure the stability of the float 1 and prevent it from being swept away quickly, the anchoring block 201 inside the bottom cavity of the outer wall of the float 1 will slowly sink to the bottom due to its material (hard plastic has a certain weight, but this weight is only to ensure it sinks after entering the water and will not increase the burden on rescuers). However, the weight of the anchoring block 201 alone is insufficient to guarantee a significant sinking. After the anchoring block 201 sinks, water will enter through the inlet at the top of the anchoring block 201. The internal weight-increasing block 207 will quickly absorb water and expand after encountering water. The volume, weight and density of the weight-increasing block 207 will change after absorbing water (due to the material of the water-absorbing and expanding rubber, it can quickly absorb a large amount of water). At this time, the anchor block 201 will sink because the weight-increasing block 207 quickly becomes heavier. When the anchor block 201 sinks, it will fall vertically along the inner wall of the cavity opened at the bottom of the outer wall of the rescue float 1 (because the length of the anchor block 201 matches the length of the cavity at the bottom of the outer wall of the rescue float 1). At this time, the rescue float 1 will tend to be stable, ensuring that it is not swept away by the turbulent water flow in a short time.

[0049] When the anchor block 201 falls, the inclined surface at the bottom of the outer wall of the anchor block 201 will press against one side of the outer wall of the push plate 203, causing the push plate 203 to slide along the other side after being pressed. After the push plate 203 slides a certain distance to the other side, the slot on the outer wall of the push plate 203 will align with the bottom of the outer wall of the insert plate 205. At this time, since the outer wall of the push plate 203 is no longer limiting the insert plate 205 and the pressure spring 206, the pressure spring 206 will release its elastic force to drive the insert plate 205 to slide downward. At this time, the insert plate 205 will insert into the slot of the push plate 203 (in normal condition, the pressure spring 206 is in a contracted state storing elastic force, because the insert plate The outer wall of the push plate 203 limits the spring force of the compression spring 206, which is in a state of waiting to be released. After the anchor block 201 sinks to the position of disengaging from the push plate 203, the push plate 203 is already inserted into the socket by the insert plate 205. Therefore, when the compression spring 204 returns to its original position, it will be limited by the socket of the insert plate 205 and the push plate 203. After the insert plate 205 is inserted into the slot of the push plate 203, the limiting expansion plate 301 is no longer limited by the insert plate 205, which causes the telescopic rod 304 to release its spring force and drive the expansion spring 305 to stretch. After the telescopic rod 304 and the expansion spring 305 are stretched, they will cause the limiting expansion plate 301 to pop out (e.g., Figure 6As shown, one end of the telescopic rod 304 and the expansion spring 305 are connected to the limiting expansion plate 301 and the release expansion plate 302, and the other end is connected to the inner wall of the groove of the rescue float 1. After the limiting expansion plate 301 is ejected, the folding float 303 will open. At the same time, after the limiting expansion plate 301 is ejected, the "L"-shaped structure of the limiting expansion plate 301 is disengaged from the position of the release expansion plate 302, so that the telescopic rod 304 and the expansion spring 305 at the release expansion plate 302 drive the release expansion plate 302 to eject. At the same time, the folding float 303 at the release expansion plate 302 will also open. After the folding float 303 opens, the buoyancy of the rescue float 1 will be increased (because the anchor block 201 is in a sunken state, the buoyancy needs to be increased in order to ensure the stability of the rescue float 1). At the same time, the area of ​​the rescue float 1 will be increased, increasing the probability that the person who has fallen into the water will touch the rescue float 1.

[0050] After use, the user can turn the anchor block 201 upside down and let it air dry slowly at room temperature to dehydrate the weight block 207. Then, the user can re-wind the anchor block 201 into the cavity at the bottom of the outer wall of the rescue float 1 through the roller 202, and insert the limiting expansion plate 301 and the release expansion plate 302 into the groove of the rescue float 1. Then, the user can pull the insert plate 205 upward again. After the insert plate 205 is reset, the compression spring 204 will automatically reset because the limiting of the insert plate 205 is no longer present.

[0051] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An underwater emergency rescue device, comprising a rescue float (1), characterized in that, Also includes: The water-tight anchoring mechanism (2) is movably installed on the inner wall of the rescue float (1) to add anchor points after the rescue float (1) enters the water, so as to maintain the stability of the rescue float (1) as much as possible in turbulent water. The bottom of the outer wall of the rescue float (1) is provided with a cavity; The water-tight anchoring mechanism (2) includes a spool (202) that is rotatably mounted in the bottom cavity of the outer wall of the rescue float (1) via a rotating shaft. An anchor block (201) is connected to the outer wall of the spool (202) via a traction rope. The anchor block (201) has a hollow structure inside and a weight-adding block (207) is provided on the inner wall of the anchor block (201). The bottom of the outer wall of the anchor block (201) has a sloping structure; An expandable float mechanism (3) is installed on the outer wall of the rescue float (1) to deform and expand after the rescue float (1) enters the water. This can enhance the buoyancy of the rescue float (1) itself and increase the area of ​​the rescue float (1) to increase the probability of the person falling into the water hitting the rescue float (1). The outer wall of the rescue float (1) is provided with a groove; The expandable float mechanism (3) includes a limiting expansion plate (301) symmetrically arranged on the left and right sides inside the groove of the rescue float (1), and a folding float plate (303) is connected to one side of the outer wall of the limiting expansion plate (301).

2. The underwater emergency rescue equipment according to claim 1, characterized in that: The bottom sides of the outer wall of the rescue float (1) are symmetrically slidably provided with push plates (203) through the sliding groove assembly. A compression spring (204) is provided on one side of the outer wall of the push plate (203).

3. The underwater emergency rescue equipment according to claim 1, characterized in that: The rescue float (1) has insert plates (205) symmetrically slidably mounted on both sides of its outer wall via a sliding groove assembly. Compression springs (206) are provided on both sides of the outer wall of the insert plate (205).

4. The underwater emergency rescue equipment according to claim 3, characterized in that: The rescue float (1) has a release expansion plate (302) symmetrically and movable inside the groove. Telescopic rods (304) are provided on both sides of the folding float (303). An expansion spring (305) is provided around the outer wall of the telescopic rod (304).

5. The underwater emergency rescue equipment according to claim 1, characterized in that: The anchor block (201) is trapezoidal; The top of the outer wall of the anchor block (201) is provided with a water inlet; The anchor block (201) is made of rigid plastic; The length of the anchor block (201) is adapted to the length of the bottom cavity of the outer wall of the rescue float (1).

6. The underwater emergency rescue equipment according to claim 1, characterized in that: The weight-adding block (207) is rectangular; The weight-adding block (207) is made of water-absorbing and expanding rubber.

7. The underwater emergency rescue equipment according to claim 2, characterized in that: One side of the outer wall of the push plate (203) is in contact with the inclined structure at the bottom of the outer wall of the anchor block (201); The outer wall of the push plate (203) is provided with an insertion port; The diameter of the insertion port of the push plate (203) is slightly larger than the diameter of the bottom of the outer wall of the insertion plate (205).

8. An underwater emergency rescue device according to claim 2, characterized in that: One end of the compression spring (204) is connected to one side of the outer wall of the push plate (203); The other end of the compression spring (204) is connected to a sliding assembly provided at the bottom of the outer wall of the rescue float (1).

9. An underwater emergency rescue device according to claim 3, characterized in that: One end of each of the two pressure springs (206) is connected to a sliding assembly provided on both sides of the outer wall of the rescue float (1); The other end of the compression spring (206) is connected to both sides of the outer wall of the insert plate (205).

10. An underwater emergency rescue device according to claim 4, characterized in that: The two ends of the outer wall of the limiting expansion plate (301) on both sides are L-shaped; Both ends of the release expansion plate (302) are limited by the "L"-shaped structure at both ends of the outer wall of the limiting expansion plate (301).

Images