Automatic inflatable life jacket

By designing an automatically inflatable life jacket, which uses water-soluble blocks to provide energy to drive gas into the airbag, the problem of inconvenience in carrying foam plastic life jackets and limited throwing distance is solved, and automatic inflation enhances buoyancy and facilitates maintenance is achieved.

CN224256912UActive Publication Date: 2026-05-19李婷
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
李婷
Filing Date
2025-05-24
Publication Date
2026-05-19

AI Technical Summary

Technical Problem

Existing foam plastic life jackets are inconvenient to carry and have a limited throwing distance, making it difficult to reach distant areas.

Method used

An automatic inflatable life jacket was designed, comprising a puncture-proof airbag, an inflatable block, a high-pressure gas tank, and a magnetic structure. The inflatable jacket is powered by the dissolution of a water-soluble block, and automatic inflation is achieved by using magnetic repulsion.

Benefits of technology

It enables the life jacket to automatically inflate on the water surface, enhancing buoyancy and making it easy to throw to distant locations. The maintenance process is also simple.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model belongs to the technical field of life jackets, and particularly relates to an automatic inflatable life jacket which comprises a life jacket body, anti-puncture air bags are mounted at the bottoms of two sides of the life jacket body, an inflatable block is mounted at the bottom of the back of the life jacket body, an air outlet pipe is arranged at the bottom of the inflatable block, and a three-way pipe is mounted at the bottom of the air outlet pipe. The two sides of the three-way pipe are each provided with an air conveying hose. When the life jacket is thrown to the water surface, the life jacket can float on the water surface through the use of foam blocks, when water soluble blocks are dissolved in water, rectangular magnetic blocks can be pushed to move under the action of elastic potential energy of supporting springs, and circular truncated cone magnetic blocks can be pushed to move under the action of magnetic repulsion of the rectangular magnetic blocks and the circular truncated cone magnetic blocks; when the life jacket is used, the circular truncated cone magnetic block is in contact with an ejector pin of the high-pressure gas tank for deflation, and then the high-pressure gas enters the anti-puncture gas bag through the gas conveying hose for automatic inflation, so that the buoyancy of the life jacket can be enhanced, and the life jacket is convenient to use.
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Description

Technical Field

[0001] This utility model belongs to the field of life jacket technology, specifically relating to an automatic inflatable life jacket. Background Technology

[0002] A life jacket, also known as a life vest, is a type of clothing designed to save lives. It is similar in design to a vest and is made of nylon or neoprene fabric, buoyancy materials or inflatable materials, reflective materials, etc.

[0003] Common life jackets made of foam plastic are inconvenient to carry as they cannot be folded and are difficult to throw far, limiting their effectiveness. Therefore, this invention provides an automatically inflatable life jacket. Utility Model Content

[0004] To address the aforementioned problems in the existing technology, this utility model provides an automatically inflatable life jacket, which has the advantage of good performance.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an automatically inflatable life jacket, comprising a life jacket body, with anti-puncture airbags installed on both sides of the bottom of the life jacket body, an inflation block installed on the bottom of the back of the life jacket body, an air outlet pipe provided at the bottom of the inflation block, a three-way pipe installed at the bottom of the air outlet pipe, air supply hoses installed on both sides of the three-way pipe, a one-way valve installed on one side of the outer wall of the air supply hose, and one end of the air supply hose connected to the air inlet of the anti-puncture airbag;

[0006] The inflatable block has a U-shaped cavity inside. A connecting groove is provided at the center of the top of the inflatable block. A connecting hole is provided at the center of both sides of the inner wall of the connecting groove. A frustum magnetic block is installed at the bottom of the connecting groove. A high-pressure gas tank is installed at the top of the connecting groove. A filling chamber is provided at the center of one end of the inflatable block. A support spring is bonded to the center of the bottom of the inner wall of the filling chamber. A plastic base plate is bonded to the top of the support spring. A rectangular magnetic block is bonded to the top of the plastic base plate. A water-soluble block is filled between the top of the rectangular magnetic block and the top of the inner wall of the connecting groove.

[0007] As a preferred technical solution of the automatic inflatable life jacket of this utility model, foam blocks are symmetrically installed on the top front, bottom front, top back, and bottom back of the life jacket body, and fixing straps are provided on the middle front and bottom front of the life jacket body.

[0008] As a preferred technical solution of the present invention for an automatically inflatable life jacket, the bottom back of the life jacket body is provided with several limiting rings, and the air supply hose is located inside the limiting rings.

[0009] As a preferred technical solution of the automatic inflatable life jacket of this utility model, the top of the connecting groove is provided with an internal thread, and the internal thread is located above the connecting hole.

[0010] As a preferred technical solution of the automatic inflatable life jacket of this utility model, the bottom of the high-pressure gas tank is provided with an external thread, and the external thread and the internal thread are connected by a thread.

[0011] As a preferred technical solution of the automatic inflatable life jacket of this utility model, the cross-sectional dimensions of the bottom end of the frustum magnetic block are adapted to the cross-sectional dimensions of the connecting groove.

[0012] As a preferred technical solution of the automatic inflatable life jacket of this utility model, the magnetic properties of the frustum magnetic block and the rectangular magnetic block are the same.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] When the life jacket is thrown onto the water, the foam blocks allow it to float. When the water-soluble blocks dissolve in water, the elastic potential energy of the supporting spring pushes the rectangular magnetic block to move. The magnetic repulsion between the rectangular and frustum magnetic blocks pushes the frustum magnetic block to move, allowing it to contact the pin of the high-pressure gas tank to release the gas. The high-pressure gas then flows through the gas delivery hose to the puncture-resistant airbag for automatic inflation, thereby enhancing the buoyancy of the life jacket and facilitating its use. Attached Figure Description

[0015] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0016] Figure 1 The diagram shows the inflatable effect of the anti-puncture airbag of this utility model.

[0017] Figure 2 This is a schematic diagram of the installation structure of the tee pipe of this utility model;

[0018] Figure 3 This is an exploded view of the installation of the tee pipe of this utility model;

[0019] Figure 4 This is an exploded view of the installation of the high-pressure gas tank of this utility model;

[0020] Figure 5 This is a longitudinal sectional view of the inflatable block of this utility model;

[0021] Figure 6 This is an installation effect diagram of the starch plastic base plate of this utility model.

[0022] Figure 7 This is a diagram illustrating the melting effect of the starch-plastic base plate of this utility model.

[0023] In the diagram: 1. Life jacket body; 2. Foam block; 3. Fixing strap; 4. Puncture-resistant airbag; 5. Inflatable block; 6. Air outlet pipe; 7. T-connector; 8. Air supply hose; 9. One-way valve; 10. U-shaped cavity; 11. Connecting groove; 12. Connecting hole; 13. Frustum magnet; 14. Filling chamber; 15. Support spring; 16. Plastic base plate; 17. Rectangular magnet; 18. Water-soluble block; 19. High-pressure air tank. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model. Example

[0025] Please see Figures 1-7 This utility model provides the following technical solution: an automatically inflatable life jacket, comprising a life jacket body 1, with foam blocks 2 symmetrically installed on the top front, bottom front, top back, and bottom back of the life jacket body 1. The design of the foam blocks 2 increases the buoyancy of the life jacket body 1, allowing it to float on the water surface. Fixing straps 3 are provided on the middle front and bottom front of the life jacket body 1 for easy wearing. The bottom of both sides of the body 1 is equipped with anti-puncture airbags 4. The bottom of the back of the life jacket body 1 is equipped with an inflation block 5. An air outlet pipe 6 is provided at the bottom of the inflation block 5. A three-way pipe 7 is fixedly installed at the bottom of the air outlet pipe 6. Air supply hoses 8 are fixedly installed on both sides of the three-way pipe 7. A one-way valve 9 is installed on one side of the outer wall of the air supply hose 8. One end of the air supply hose 8 is fixedly connected to the air inlet of the anti-puncture airbag 4. Several limiting rings are provided at the bottom of the back of the life jacket body 1. The air supply hose 8 is located inside the limiting rings, which facilitates the storage and organization of the air supply hose 8.

[0026] The inflatable block 5 has a U-shaped cavity 10 inside. A connecting groove 11 is located at the center of the top of the inflatable block 5. An internal thread is provided at the top of the connecting groove 11. Connecting holes 12 are provided at the center of both sides of the inner wall of the connecting groove 11. A frustum magnet 13 is placed at the bottom of the connecting groove 11. The cross-sectional dimensions of the bottom of the frustum magnet 13 are compatible with the cross-sectional dimensions of the connecting groove 11. A high-pressure gas tank 19 is installed at the top of the connecting groove 11. The bottom of the high-pressure gas tank 19 has external threads. The inflatable block 5 has both external and internal threads. The high-pressure gas tank 19 is fixedly installed by threaded connection. A filling chamber 14 is provided in the middle of one end of the air block 5. A support spring 15 is bonded to the middle of the bottom of the inner wall of the filling chamber 14. A plastic base plate 16 is bonded to the top of the support spring 15. A rectangular magnetic block 17 is bonded to the top of the plastic base plate 16. The magnetic properties of the frustum magnetic block 13 and the rectangular magnetic block 17 are the same. A water-soluble block 18 is filled between the top of the rectangular magnetic block 17 and the top of the inner wall of the connecting groove 11.

[0027] It should be noted that the high-pressure gas tank 19 contains high-pressure harmless gas.

[0028] It should be noted that the water-soluble block 18 can be made of PVA material.

[0029] Working principle and usage process of this utility model:

[0030] When using this life jacket, the operator installs a water-soluble block 18 inside the filling chamber 14, as per the instruction manual. Figure 5 Included with instruction manual Figure 6 As shown, the staff then installed the high-pressure air tank 19 inside the connecting groove 11 of the inflatable block 5, and then folded and threw the life jacket. By folding and throwing, it can be thrown to a farther place.

[0031] When external water comes into contact with the water-soluble block 18, the water-soluble block 18 dissolves in the water. Under the action of the elastic potential energy of the supporting spring 15, it will push the plastic base plate 16 and the rectangular magnetic block 17 installed thereon to move. During the movement, the rectangular magnetic block 17 will push the frustum magnetic block 13 to move inside the connecting groove 11 under the action of magnetic repulsion, as shown in the instruction manual. Figure 7 As shown, the frustum magnet 13 contacts the pin of the high-pressure gas tank 19 to release the gas. The high-pressure gas enters the three-way pipe 7 through the gas outlet pipe 6, and then the gas enters the puncture-proof airbag 4 through the gas delivery hose 8, thereby realizing the automatic inflation of the puncture-proof airbag 4, which facilitates the use of the life jacket.

[0032] After the life jacket is used, it can be reused simply by replacing the water-soluble block 18 and the high-pressure gas tank 19, making the maintenance process relatively convenient.

[0033] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model 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 this utility model should be included within the protection scope of this utility model.

Claims

1. An automatically inflatable life jacket, characterized in that: The life jacket includes a body (1), with anti-puncture airbags (4) installed on both sides of the bottom of the body (1), an inflation block (5) installed on the back bottom of the body (1), an air outlet pipe (6) provided at the bottom of the inflation block (5), a three-way pipe (7) installed at the bottom of the air outlet pipe (6), air supply hoses (8) installed on both sides of the three-way pipe (7), a one-way valve (9) installed on one side of the outer wall of the air supply hose (8), and one end of the air supply hose (8) connected to the air inlet of the anti-puncture airbag (4). The inflatable block (5) has a U-shaped cavity (10) inside. The top center of the inflatable block (5) has a connecting groove (11). The middle of both sides of the inner wall of the connecting groove (11) has a connecting hole (12). A frustum magnet (13) is installed at the bottom of the connecting groove (11). A high-pressure gas tank (19) is installed at the top of the connecting groove (11). A filling chamber (14) is provided at the middle of one end of the inflatable block (5). A support spring (15) is bonded to the middle of the bottom of the inner wall of the filling chamber (14). A plastic base plate (16) is bonded to the top of the support spring (15). A rectangular magnet (17) is bonded to the top of the plastic base plate (16). A water-soluble block (18) is filled between the top of the rectangular magnet (17) and the top of the inner wall of the connecting groove (11).

2. The self-inflating life jacket according to claim 1, characterized in that: Foam blocks (2) are symmetrically installed on the top front, bottom front, top back, and bottom back of the life jacket body (1), and fixing straps (3) are provided on the middle front and bottom front of the life jacket body (1).

3. The self-inflating life jacket according to claim 1, characterized in that: The life jacket body (1) has several limiting rings at the bottom of the back side, and the air supply hose (8) is located inside the limiting rings.

4. The self-inflating life jacket according to claim 1, characterized in that: The top of the connecting groove (11) is provided with an internal thread, which is located above the connecting hole (12).

5. The self-inflating life jacket according to claim 4, characterized in that: The bottom of the high-pressure gas tank (19) is provided with an external thread, and the external thread and the internal thread are connected by a thread.

6. The self-inflating life jacket according to claim 1, characterized in that: The cross-sectional dimensions of the bottom end of the frustum magnet (13) are compatible with the cross-sectional dimensions of the connecting groove (11).

7. The self-inflating life jacket according to claim 6, characterized in that: The magnetic properties of the frustum magnet (13) are the same as those of the rectangular magnet (17).