Life net for water area rescue

Abstract

The utility model discloses a life net for water area rescue, which comprises a rescue net, at least four floaters arranged on the rescue net, balloons for providing buoyancy for the rescue net, a gas generator for inflating the balloons and a one-way valve for connecting the balloons and the gas generator, and a plurality of counterweight structures arranged at the bottom end of the rescue net, comprising a balancing weight and a connecting ring for connecting the balancing weight to the rescue net, first connecting ropes are fixedly connected to the upper portions of the two sides of the rescue net, second connecting ropes are fixedly connected to the lower portions of the two sides of the rescue net, and first hooks are connected to the ends, away from the rescue net, of the first connecting ropes and the second connecting ropes. The rescue net has the advantages that the rescue net can be quickly unfolded through the synergistic effect of the gravity provided by the counterweight structure and the buoyancy provided by the balloon in the floater; the net body rolling structure is arranged and used in cooperation with the protection shell, so that when the rescue net is not used, the rescue net can be rolled and hidden, and the occupied volume space of the rescue net is reduced.

Description

Technical Field

[0001] This utility model relates to the field of lifesaving net technology, specifically to a lifesaving net for water rescue. Background Technology

[0002] In recent years, drowning accidents have occurred frequently. Those who fall into the water are often in danger due to factors such as rapid currents and poor visibility, requiring swift and efficient rescue operations. In some scenarios, lifenets are needed to rescue those in the water; however, these lifenets need to be deployed before use. This introduces some drawbacks that require improvement.

[0003] 1. Because the person who fell into the water is in a critical situation, it takes a lot of time for rescuers to arrive at the area and deploy the rescue net, which wastes precious rescue time. At the same time, the rescue net is in a turbulent current, which will cause it to float in the direction of the current, thus affecting the subsequent rescue effect.

[0004] 2. In addition, when not in use, these rescue nets are often simply piled up in the environment, taking up a lot of space, making them inconvenient to store and carry, and they are easily damaged during storage, affecting their subsequent normal use.

[0005] The information disclosed in this background section is intended only to enhance the understanding of the overall background of this utility model and should not be construed as an admission or in any way implying that the information constitutes prior art known to those skilled in the art. Utility Model Content

[0006] The technical problem to be solved by this utility model is to overcome the above-mentioned problems and provide a life-saving net for water rescue.

[0007] To solve the above-mentioned technical problems, the technical solution provided by this utility model is: a life-saving net for water rescue, comprising:

[0008] Rescue network;

[0009] At least four floaters, including balloons that provide buoyancy to the rescue net, gas generators that inflate the balloons, and one-way valves that connect the balloons and the gas generators, the one-way valves being fixedly connected to the rescue net;

[0010] Several counterweight structures, including counterweight blocks and connecting rings that connect the counterweight blocks to the rescue net.

[0011] Preferably, a first connecting rope is fixedly connected to the upper part of both sides of the rescue net, and a second connecting rope is fixedly connected to the lower part of both sides of the rescue net. The ends of the first connecting rope and the second connecting rope on the same side that are away from the rescue net are connected together by a first hook.

[0012] Preferably, the rescue net is further provided with a net winding structure;

[0013] The net winding structure includes a connecting shaft fixedly connected to the rescue net, a rotating handle fixedly connected to the top of the connecting shaft, a connecting seat rotatably connected to the outer wall of the connecting shaft, and two second hooks fixedly connected to the side of the connecting seat away from the rotating handle.

[0014] Preferably, the balloon is located on the side of the one-way valve closer to the center of the rescue net, and the gas generator is located on the side of the one-way valve farther from the center of the rescue net. The gas flow direction in the one-way valve is from the gas generator side to the balloon side.

[0015] Preferably, the gas generator includes a housing fixedly connected to a one-way valve, a filter plate and a baffle plate fixedly connected to the inner wall of the housing, an OPP bag fixedly connected to the side of the baffle plate near the filter plate, the OPP bag containing citric acid solution, and baking soda filling the area formed by the filter plate and the baffle plate.

[0016] Preferably, the barrier is composed of a foam board in the middle and a PVC plastic board in the remainder.

[0017] Preferably, a connecting plate is provided on the side of the baffle plate away from the filter plate. The connecting plate is slidably connected to the inner wall of the outer shell. Several iron nails are fixedly connected to the side of the connecting plate near the baffle plate. A shock-absorbing spring is fixedly connected to the other side of the connecting plate. The other end of the shock-absorbing spring is fixedly connected to the inner wall of the outer shell. A through hole is opened at the top of the outer shell. A slider is fixedly connected to the top of the connecting plate. The slider is slidably connected in the through hole. A positioning rope with a positioning ring is fixedly connected to the top of the slider.

[0018] Preferably, the upper part of the counterweight has a cavity, and the upper part of the outer wall of the counterweight has a plurality of water inlet holes that communicate with the cavity.

[0019] Preferably, it also includes a protective housing that can enclose the rescue net, four floaters, and several counterweight structures, and allows the protective housing to be threadedly connected to the connector.

[0020] The advantages of this utility model compared with the prior art are as follows:

[0021] 1. The combined effect of gravity provided by the counterweight structure and buoyancy provided by the balloons in the floater allows the rescue net to deploy quickly, reducing the physical labor required for manual deployment and making it more convenient and efficient. Simultaneously, because the counterweights submerge the bottom of the rescue net in the water, the impact of water currents on the net is reduced, ensuring the effectiveness of subsequent rescue efforts.

[0022] 2. By incorporating a net roll-up structure and using a protective casing, the rescue net can be rolled up and hidden when not in use, reducing its footprint. This also effectively prevents accidental damage to the net itself and other components during usage intervals. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 This is a three-dimensional view of the rescue net after it has been deployed in this utility model.

[0025] Figure 2 This is a perspective view of the floatation device in this utility model.

[0026] Figure 3 This is a perspective view of the gas generator in this utility model.

[0027] Figure 4 This is a structural diagram of the gas generator in this utility model.

[0028] Figure 5 This is a perspective view of the baffle plate in this utility model.

[0029] Figure 6 This is a structural diagram of the counterweight structure in this utility model.

[0030] Figure 7 This is a structural diagram of the wire mesh winding structure in this utility model.

[0031] Figure 8 This is a structural diagram of how the rescue net is rolled up in this utility model.

[0032] Figure 9 This is an enlarged view of point A in this utility model.

[0033] As shown in the figure:

[0034] 1. Rescue network;

[0035] 2. Floater; 201. Balloon; 202. One-way valve;

[0036] 3. Gas generator; 301. Housing; 302. Filter plate; 303. Baffle plate; 3031. Foam board; 3032. PVC plastic board; 304. OPP bag; 305. Connecting plate; 306. Nail; 307. Shock-absorbing spring; 308. Through hole; 309. Slider; 310. Positioning rope; 311. Positioning ring;

[0037] 4. Counterweight structure; 401. Counterweight block; 402. Connecting ring; 403. Water inlet hole;

[0038] 5. First connecting rope; 6. Second connecting rope; 7. First hook;

[0039] 8. Net winding structure; 801. Connecting shaft; 802. Rotating handle; 803. Connecting seat; 804. Second hook;

[0040] 9. Protective casing. Detailed Implementation

[0041] The following will refer to the appendix in the embodiments of this utility model. Figure 1 To the attached Figure 9 As shown, the technical solutions in the embodiments of this utility model are clearly and completely described. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of this utility model.

[0042] Example 1:

[0043] like Figure 1 As shown, this utility model provides

[0044] A water rescue lifeline includes a rescue net 1, at least four floaters 2 and several counterweight structures 4.

[0045] The rescue net 1 has a first connecting rope 5 fixedly connected to the upper part of both sides; and a second connecting rope 6 fixedly connected to the lower part of both sides. The ends of the first connecting rope 5 and the second connecting rope 6 on the same side, away from the rescue net 1, are connected to a first hook 7. The length ratio of the first connecting rope 5 to the second connecting rope 6 is 1:3, so that when the rescue net 1 is unfolded and the first connecting rope 5 and the second connecting rope 6 are straightened, the two first hooks 7 can be symmetrically held at the upper part of both sides of the rescue net 1.

[0046] Pay special attention to Figure 6As shown, several counterweight structures 4 are then installed at the bottom of the rescue net 1, including a counterweight block 401 and a connecting ring 402 connecting the counterweight block 401 to the rescue net 1. Specifically, the connecting ring 402 is wrapped around the rope of the rescue net 1, and the counterweight block 401 is fixedly connected to the bottom end of the connecting ring 402. In this embodiment, the counterweight block 401 is spherical, and a hemispherical cavity is formed in the upper part of the counterweight block 401. At the same time, several water inlet holes 403 are formed around the upper part of the outer wall of the counterweight block 401, and the water inlet holes 403 communicate with the cavity. Therefore, in use, after the counterweight block 401 sinks into the water, the surrounding water enters the cavity inside the counterweight block 401 through the water inlet holes 403, increasing the weight of the counterweight block 401 and making the counterweight block 401 sink more quickly.

[0047] like Figure 2 As shown, at least four floaters 2 are installed at the top of the rescue net 1. These include a one-way valve 202 (model DPCV-2T) fixedly connected to the top of the rescue net 1. A balloon 201 is fixedly connected to the air outlet of the one-way valve 202 near the center of the rescue net 1, and the bottom of the balloon 201 is fixedly connected to the top of the rescue net 1. A gas generator 3 is connected to the air inlet of the one-way valve 202 away from the center of the rescue net 1. Simultaneously, the gas flow direction in the one-way valve 202 is from the gas generator 3 side to the balloon 201 side, thus continuously supplying gas generated in the gas generator 3 to the balloon 201, causing the balloon 201 to continuously inflate.

[0048] Check Figures 3 to 5 As shown, the gas generator 3 includes a housing 301, which consists of a casing and a threaded ring connected to it. The threaded ring is threaded into the air inlet of the one-way valve 202. A filter plate 302 and a baffle plate 303 are fixedly connected to the inner wall of the housing 301. It should be noted that the filter plate 302 is located closer to the external threaded ring, and the baffle plate 303 is located on the side of the filter plate 302 away from the external threaded ring. Thus, the filter plate 302, the baffle plate 303, and the inner wall of the housing 301 form a closed area.

[0049] An OPP bag 304 is fixedly connected to the side of the baffle plate 303 near the filter plate 302. The OPP bag 304 is filled with a citric acid solution made of citric acid and water. Meanwhile, the remaining portion of the enclosed area formed by the filter plate 302, the baffle plate 303, and the inner wall of the outer shell 301 is filled with solid baking soda. Thus, when the OPP bag 304 ruptures, the citric acid solution inside leaks and reacts fully with the baking soda, producing a large amount of carbon dioxide gas, which inflates the balloon 201.

[0050] The chemical equation for the reaction between citric acid solution and baking soda is shown below:

[0051] C6H8O7+3NaHCO3→Na3C6H5O7+3H2O+3CO2↑

[0052] It should be noted that, due to the use of filter plate 302, baking soda will not enter the one-way valve 202 and balloon 201 through the external threaded ring on the outer shell 301. Only carbon dioxide gas will enter the balloon 201, causing the balloon 201 to expand.

[0053] Next, a connecting plate 305 is provided on the side of the baffle plate 303 away from the filter plate 302. The connecting plate 305 is slidably connected to the inner wall of the housing 301. It should be understood that the top and bottom ends of the connecting plate 305 are slidably connected to the top and bottom walls of the housing 301, respectively. Next, a through hole 308 is opened on the top side of the housing 301 away from the filter plate 302. A slider 309 is slidably connected in the through hole 308. The bottom end of the slider 309 is fixedly connected to the top end of the connecting plate 305. A shock-absorbing spring 307 is fixedly connected to the side of the connecting plate 305 away from the baffle plate 303. The other end of the shock-absorbing spring 307 is fixedly connected to the inner wall of the housing 301.

[0054] To facilitate the puncture of the OPP bag 304, several nails 306 are fixedly connected to the middle of the side of the connecting plate 305 near the baffle plate 303. The baffle plate 303 consists of a foam board 3031 at its core and PVC plastic boards 3032 fixedly connected around the foam board 3031. The PVC plastic boards 3032 are fixedly connected to the inner wall of the outer shell 301, and the OPP bag 304 is simultaneously fixedly connected to both the PVC plastic boards 3032 and the foam board 3031. Therefore, after piercing the foam board 3031, the nails 306 puncture the OPP bag 304.

[0055] Finally, a positioning rope 310 is fixedly connected to the top of the slider 309, and a positioning ring 311 is fixedly connected to the end of the positioning rope 310 away from the slider 309. At the same time, a cutting blade is fixedly connected to the top of the housing 301 near the positioning ring 311, with the cutting blade positioned diagonally toward the positioning rope 310.

[0056] Therefore, in the specific implementation of this embodiment, the rapid deployment and stable suspension of the rescue net 1 in the water rely on two key components: the counterweight structure 4 and the floaters 2. Specifically, several counterweight structures 4 apply downward gravity, while four floaters 2 provide upward buoyancy. The interaction of these two forces ensures that the rescue net 1 can deploy rapidly. More importantly, this carefully designed force balance allows the rescue net 1 to maintain its deployed posture in the water, effectively resisting the influence of water currents and preventing it from drifting aimlessly. In this way, the rescue net 1 can remain stably in the target area, thereby significantly improving the efficiency and effectiveness of subsequent rescue work.

[0057] Example 2:

[0058] In order to roll up the rescue net 1 in the above embodiment 1, thereby reducing the volume of the rescue net 1 when not in use, we focus on examining... Figures 7 to 9 As shown, this utility model also provides a second embodiment. In this second embodiment, the rescue net 1 is further provided with a net body winding structure 8, including a connecting shaft 801 fixedly connected to the upper front end of the rescue net 1, and a rotating handle 802 fixedly connected to the top end of the connecting shaft 801; a connecting seat 803 is rotatably connected to the upper outer wall of the connecting shaft 801, and a threaded protrusion is provided on the lower part of the outer wall of the connecting seat 803; finally, a second hook 804 is fixedly connected to both sides of the bottom end of the connecting seat 803.

[0059] In addition, this utility model also includes a protective shell 9, and the upper part of the inner wall of the protective shell 9 has a threaded groove.

[0060] Therefore, in this embodiment, the connecting seat 803 is kept stationary. Then, the rotating handle 802 is rotated, causing the rescue net 1 on both sides to be wound up via the connecting shaft 801. When the winding is complete, the rescue net 1 is wrapped around the connecting shaft 801. The two first hooks 7 are then positioned on either side of the connecting shaft 801. Next, the positioning rings 311 on the four floaters 2 are hooked onto the two second hooks 804; specifically, the two positioning rings 311 on the same side are hooked onto the second hooks 804 on the same side. Then, the lower part of the wound rescue net 1 is stacked upwards. Next, the protective housing 9 is used to enclose the rescue net 1, several counterweight structures 4, and four floaters 2. Finally, the threaded groove of the protective housing 9 and the threaded protrusion on the connecting seat 803 are threaded together.

[0061] Combining Embodiments 1 and 2, when not in use, the protective housing 9 encloses the rescue net 1, several counterweight structures 4, and four flotation devices 2. This reduces the volume occupied and protects the various components from damage. In the event of an accidental fall into the water, the protective housing 9 is detached from the connecting seat 803, and then the two first hooks 7 are respectively attached to different motorboats. The two motorboats move towards the person in the water while separating from each other, allowing the rescue net 1 to deploy quickly. During the deployment of rescue net 1, the counterweight 401 on the bottom counterweight structure 4 first sinks below the water surface. As the motorboat moves, water in the water will enter the cavity of counterweight 401 through the water inlet 403, thus allowing counterweight 401 to sink into the water more quickly. At the same time, since the positioning ring 311 is hung on the second hook 804, as rescue net 1 is deployed to both sides, the positioning rope 310 will pull the connecting plate 305 and the nail 306 to move quickly toward the side of OPP bag 304. When the nail 306 pierces the foam board 3031 and punctures the OPP bag 304, the citric acid solution inside the OPP bag 304 will leak into the area composed of filter plate 302 and baffle plate 303, and react fully with the baking soda inside, producing a large amount of carbon dioxide gas. The carbon dioxide gas enters the balloon 201 through the one-way valve 202, causing the balloon 201 to expand rapidly.

[0062] It is important to note that when the gas generator 3 moves away from the connecting shaft 801, that is, when the positioning rope 310 indirectly pulls the connecting plate 305 and the nail 306 closer to the OPP bag 304, the positioning rope 310 will slowly approach the cutting blade. Finally, when the nail 306 punctures the OPP bag 304, the cutting blade will cut the positioning rope 310, and then the shock-absorbing spring 307 will cause the connecting plate 305, along with the nail 306, to return to its original position. The solution inside the OPP bag 304 will then leak out and react with the baking soda.

[0063] In this way, the balloon 201 inflates and generates buoyancy on the rescue net 1, while the counterweight 401 generates a downward pulling force on the rescue net 1. As the two motorboats move towards the person in the water, the rescue net 1 will be deployed, thereby improving the efficiency and effectiveness of subsequent rescue work.

[0064] In summary, the water rescue net provided by this utility model has at least the following advantages:

[0065] 1. Through the combined effect of the gravity provided by the counterweight structure 4 and the buoyancy provided by the balloon 201 in the floater 2, the rescue net 1 can be deployed quickly, thereby reducing the physical labor required to deploy the rescue net 1 manually, and making it more convenient and efficient.

[0066] 2. By setting up a net retractable structure 8 and using it in conjunction with a protective shell 9, the rescue net 1 can be retracted and hidden when not in use, reducing the volume space occupied by the rescue net 1. It can also effectively prevent accidental damage to the rescue net 1 and other components during the interval between uses.

[0067] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

[0068] The detailed description of known functions and components is omitted in this disclosure. To ensure the compatibility of the equipment, the operating methods used are consistent with the parameters of commercially available instruments.

Claims

1. A life-saving net for water rescue, characterized in that, include: Rescue network (1); At least four floaters (2) include a balloon (201) that provides buoyancy to the rescue net (1), a gas generator (3) that inflates the balloon (201), and a one-way valve (202) that connects the balloon (201) and the gas generator (3), the one-way valve (202) being fixedly connected to the rescue net (1); Several counterweight structures (4) include counterweight blocks (401) and connecting rings (402) that connect the counterweight blocks (401) to the rescue net (1).

2. A water rescue lifenet according to claim 1, characterized in that: The upper parts of both sides of the rescue net (1) are fixedly connected with a first connecting rope (5), and the lower parts of both sides of the rescue net (1) are fixedly connected with a second connecting rope (6). The ends of the first connecting rope (5) and the second connecting rope (6) on the same side away from the rescue net (1) are connected by a first hook (7).

3. A water rescue lifenet according to claim 1, characterized in that: The rescue net (1) is also equipped with a net winding structure (8); The net winding structure (8) includes a connecting shaft (801) fixedly connected to the rescue net (1), a rotating handle (802) fixedly connected to the top end of the connecting shaft (801), a connecting seat (803) rotatably connected to the outer wall of the connecting shaft (801), and two second hooks (804) fixedly connected to the side of the connecting seat (803) away from the rotating handle (802).

4. A water rescue lifeline according to claim 1, characterized in that: The balloon (201) is located on the side of the one-way valve (202) closer to the center of the rescue net (1), and the gas generator (3) is located on the side of the one-way valve (202) away from the center of the rescue net (1). The gas flow direction in the one-way valve (202) is from the gas generator (3) side to the balloon (201) side.

5. A water rescue lifenet according to claim 4, characterized in that: The gas generator (3) includes a housing (301) fixedly connected to a one-way valve (202). A filter plate (302) and a baffle plate (303) are fixedly connected to the inner wall of the housing (301). An OPP package (304) is fixedly connected to the side of the baffle plate (303) near the filter plate (302). The OPP package (304) contains citric acid solution. The area formed by the filter plate (302) and the baffle plate (303) is also filled with baking soda.

6. A water rescue lifenet according to claim 5, characterized in that: The baffle (303) is composed of a foam board (3031) in the middle and a PVC plastic board (3032) in the remainder.

7. A water rescue lifenet according to claim 6, characterized in that: A connecting plate (305) is provided on the side of the baffle plate (303) away from the filter plate (302). The connecting plate (305) is slidably connected to the inner wall of the outer shell (301). Several iron nails (306) are fixedly connected to the side of the connecting plate (305) near the baffle plate (303). A shock-absorbing spring (307) is fixedly connected to the other side of the connecting plate (305). The other end of the shock-absorbing spring (307) is fixedly connected to the inner wall of the outer shell (301). A through hole (308) is opened at the top of the outer shell (301). A slider (309) is fixedly connected to the top of the connecting plate (305). The slider (309) is slidably connected in the through hole (308). A positioning rope (310) with a positioning ring (311) is fixedly connected to the top of the slider (309).

8. A water rescue lifenet according to claim 1, characterized in that: The upper part of the counterweight (401) has a cavity, and the upper part of the outer wall of the counterweight (401) has a plurality of water inlet holes (403) that connect to the cavity.

9. A water rescue lifenet according to claim 3, characterized in that, It also includes a protective housing (9) that can enclose the rescue net (1), four floaters (2) and several counterweight structures (4) and allow the protective housing (9) to be threaded onto the connector (803).

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