Air tight cloth life raft sealing device

Abstract

The utility model discloses a kind of air-tight cloth life raft sealing devices, it includes gasket, four jack plugs are provided on the gasket, the inner surface of four The jack plug is provided with a positioning pin, the upper surface of the gasket is fixedly connected with air inlet pipe, the upper surface of the gasket is fixedly connected with pull ring, the upper surface of the gasket is provided with buckle, the inner surface of the buckle is provided with fastening belt, the lower surface of the gasket is provided with sealing rubber layer, by above component fastening belt is tightened after buckle, the protruding structure of gasket side surface is tightly combined with air-tight cloth using the pulling force of high-strength woven tape, the slight gap of elastic deformation of rubber plate can be filled contact surface, protruding structure enhances local pressure, blocks penetration path;Sealing rubber layer fills micro gap after solidification, form double barrier of physical extrusion plus chemical sealing, significantly improve overall sealing reliability, effectively prevent gas leakage.

Description

Technical Field

[0001] This utility model relates to the field of sealing technology, and in particular to an airtight cloth life raft sealing device. Background Technology

[0002] In the design and use of airtight fabric life rafts, sealing performance is one of the core elements ensuring their safety and reliability. Traditional airtight fabric life raft sealing devices often employ a single sealing structure, such as relying solely on the adhesion of a regular rubber pad to the airtight fabric to achieve a seal, or applying pressure through simple rope binding. However, these devices have many shortcomings in practical applications: the contact surface between the regular rubber pad and the airtight fabric is prone to micro-gaps due to insufficient processing precision or unevenness of the airtight fabric surface. Effective sealing cannot be achieved simply through natural adhesion, especially after the life raft is inflated or subjected to wind and waves. Gas and liquid can easily seep through these gaps, seriously affecting the safety of the life raft. Furthermore, traditional binding methods often use ordinary ropes or webbing, which have poor tensile stability and are prone to loosening due to prolonged stress, leading to insufficient sealing pressure and further increasing the risk of leakage. Utility Model Content

[0003] The purpose of this utility model is to solve at least one of the technical problems existing in the prior art, and to provide an airtight cloth life raft sealing device, which solves the problem that the contact surface between ordinary rubber pads and airtight cloth is prone to small gaps due to insufficient processing precision and uneven surface of airtight cloth, and that it is difficult to form an effective seal by natural adhesion alone.

[0004] This utility model also provides a sealing device for an airtight life raft, wherein after the fastening strap is tightened by the buckle, the tension of the high-strength webbing makes the raised structure on the side surface of the sealing pad fit tightly with the airtight cloth. The elastic deformation of the rubber plate can fill the tiny gaps on the contact surface, and the raised structure enhances the local pressure and initially blocks the penetration path. After the sealing adhesive layer is cured, it fills the micro gaps, forming a double barrier of physical compression and chemical sealing, which significantly improves the overall sealing reliability and effectively prevents gas leakage.

[0005] The airtight fabric life raft sealing device of this technical solution includes: a sealing gasket with four insertion holes, each with a positioning pin on its inner surface; an air inlet pipe fixedly connected to the upper surface of the sealing gasket; a pressure control valve fixedly connected to the outer surface of the air inlet pipe; a pull ring fixedly connected to the upper surface of the sealing gasket; a buckle on the upper surface of the sealing gasket; a fastening band on the inner surface of the buckle; a sealing adhesive layer on the lower surface of the sealing gasket; and a pressure sensor fixedly connected to the lower surface of the sealing gasket. After the fastening band is tightened by the buckle, the high-strength webbing pulls the raised structure on the side surface of the sealing gasket tightly against the airtight fabric. The elastic deformation of the rubber sheet fills the tiny gaps at the contact surface, and the raised structure enhances local pressure, initially blocking the permeation path. After the sealing adhesive layer cures, it fills the microscopic gaps, forming a double barrier of physical compression and chemical sealing, significantly improving the overall sealing reliability and effectively preventing gas leakage.

[0006] According to the present invention, an airtight fabric life raft sealing device is provided with a raised structure on the side surface of the sealing gasket. The raised structure fits into the airtight fabric. During installation, the raised structure of the above components will be squeezed and deformed, generating greater local contact pressure, making the fit between the sealing gasket and the airtight fabric tighter.

[0007] According to the present invention, an airtight fabric life raft sealing device is provided, wherein the sealing gasket is shaped to fit the part of the airtight fabric life raft that needs to be sealed, and the above components ensure that each area can achieve effective sealing pressure, thereby improving the stability of the seal.

[0008] According to the present invention, an airtight fabric life raft sealing device is provided, wherein the sealing layer is located at the position where the sealing gasket and the airtight fabric are in contact, and the material of the sealing layer is polyurethane sealant. The above components can tightly fill the tiny gaps between the sealing gasket and the airtight fabric, including gaps caused by processing precision or assembly errors.

[0009] According to the present invention, the sealing gasket of the airtight cloth life raft is made of rubber sheet. The rubber sheet of the above components has excellent elastic modulus and elongation. It can produce large deformation when subjected to external forces such as compression and tension, and can quickly return to its original shape after the external force disappears.

[0010] According to the present invention, in an airtight fabric life raft sealing device, the pressure sensor and the pressure control valve are wirelessly connected. The wireless connection of the above components allows both to flexibly select the optimal installation position according to the spatial layout of the sealing device and the pressure monitoring requirements.

[0011] According to the present invention, an airtight fabric life raft sealing device is provided with a sealing ring on the inner surface of the insertion hole, and the above components tightly fill the gap between the inner surface of the insertion hole and the insert.

[0012] According to the present invention, the sealing device for an airtight fabric life raft is made of high-strength nylon webbing. The above components can withstand a large tensile force and provide a stable and strong binding force when the sealing device is fixed to the airtight fabric life raft.

[0013] Beneficial effects: After the fastening band is tightened by the buckle, the tension of the high-strength webbing makes the raised structure on the side surface of the sealing gasket fit tightly with the airtight cloth. The elastic deformation of the rubber sheet can fill the tiny gaps on the contact surface, and the raised structure enhances the local pressure, initially blocking the permeation path. After the sealing adhesive layer cures, it fills the micro gaps, forming a double barrier of physical compression and chemical sealing, which significantly improves the overall sealing reliability and effectively prevents gas leakage. Attached Figure Description

[0014] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0015] Figure 1 This is a front view of the airtight fabric life raft sealing device of this utility model;

[0016] Figure 2 This is a rear view of the airtight fabric life raft sealing device of this utility model;

[0017] Figure 3 This is a top view of the airtight fabric life raft sealing device of this utility model;

[0018] Figure 4 This is a side view of the airtight fabric life raft sealing device of this utility model;

[0019] Legend:

[0020] 1. Sealing gasket; 2. Insertion hole; 3. Positioning pin; 4. Raised structure; 5. Buckle; 6. Fastening strap; 7. Pull ring; 8. Inlet pipe; 9. Pressure control valve; 10. Sealing layer; 11. Pressure sensor. Detailed Implementation

[0021] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0022] Reference Figure 1-4This utility model discloses a sealing device for an airtight fabric life raft, comprising: a sealing gasket 1, four insertion holes 2 on the sealing gasket 1, sealing rings on the inner surface of the insertion holes 2, and positioning pins 3 on the inner surface of each of the four insertion holes 2. The sealing gasket 1 conforms to the shape of the part of the airtight fabric life raft that needs to be sealed. The sealing gasket 1 is made of rubber sheet. A raised structure 4 is provided on the side surface of the sealing gasket 1, and the raised structure 4 is in contact with the airtight fabric. An air inlet pipe 8 is fixedly connected to the upper surface of the sealing gasket 1, and the outer surface of the air inlet pipe 8 is fixedly connected to the upper surface of the sealing gasket 1. A pressure control valve 9 is fixedly connected to the upper surface of the sealing gasket 1. A pull ring 7 is fixedly connected to the upper surface of the sealing gasket 1. A buckle 5 is provided on the upper surface of the sealing gasket 1. A fastening band 6 is provided on the inner surface of the buckle 5. The fastening band 6 is made of high-strength nylon webbing. A sealing adhesive layer 10 is provided on the lower surface of the sealing gasket 1. The sealing adhesive layer 10 is located at the position where the sealing gasket 1 and the airtight cloth are in contact. The sealing adhesive layer 10 is made of polyurethane sealant. A pressure sensor 11 is fixedly connected to the lower surface of the sealing gasket 1. The pressure sensor 11 is wirelessly connected to the pressure control valve 9.

[0023] Specifically: Utilizing the shape of the sealing gasket 1 and the airtight fabric of the life raft that need to be sealed, the positioning pins 3 within the four insertion holes 2 achieve rapid and precise positioning, ensuring accurate alignment between the corresponding positions of the sealing gasket 1 and the airtight fabric. The sealing ring on the inner surface of the insertion hole 2 undergoes elastic deformation after the positioning pins 3 are inserted, sealing the gap between the insertion hole and the positioning pins while reducing friction and wear. Subsequently, the fastening strap 6 is tightened using the buckle 5, applying continuous pressure to the sealing gasket 1 using the high tensile strength of the webbing. This forces the raised structure 4 on the side surface of the sealing gasket 1 to fit tightly against the airtight fabric. The rubber-material sealing gasket 1, due to its elastic deformation, fills the tiny gaps in the contact surface, and the raised structure... 4. Further enhance local contact pressure to initially block the permeation path. The sealing layer 10 on the lower surface of the sealing gasket 1 plays an auxiliary sealing role. The pressure sensor 11 monitors the pressure change of the sealing area in real time and transmits the data to the pressure control valve 9 on the outer surface of the air inlet pipe 8 via wireless signal. When the pressure is too high due to changes in ambient temperature or water depth, the pressure control valve 9 opens the pressure relief channel to balance the pressure. When the pressure is too low, gas is introduced through the air inlet pipe 8 to ensure that the sealing gasket 1 and the airtight cloth always maintain a suitable contact pressure. The pull ring 7 facilitates the installation and removal of the sealing device. The structural design of the edge of the sealing gasket 1 and the continuous restraint of the fastening band 6 jointly prevent the device from falling off.

[0024] Working Principle: During installation, utilizing the shape of the sealing gasket 1 to match the sealed part of the airtight fabric life raft, the positioning pins 3 in the four insertion holes 2 achieve rapid and precise positioning, ensuring accurate alignment between the corresponding positions of the sealing gasket 1 and the airtight fabric. The sealing ring on the inner surface of the insertion hole 2 undergoes elastic deformation after the positioning pins 3 are inserted, sealing the gap between the insertion hole and the positioning pin and reducing friction and wear between them. Subsequently, the fastening strap 6 is tightened by the buckle 5, and the high tensile strength of the webbing applies continuous pressure to the sealing gasket 1, forcing the raised structure 4 on the side surface of the sealing gasket 1 to fit tightly against the airtight fabric. The rubber-material sealing gasket 1 fills the tiny gaps on the contact surface due to elastic deformation, and the raised structure 4 further enhances the local contact pressure, initially blocking the penetration path. The sealing adhesive layer 10 on the lower surface of the sealing gasket 1 plays an auxiliary role. The sealing function is achieved by the cured adhesive layer tightly filling the microscopic gap between the sealing gasket and the airtight cloth. During the operation of the device, the pressure sensor 11 monitors the pressure changes in the sealing area in real time and transmits the data wirelessly to the pressure control valve 9 on the outer surface of the air inlet pipe 8. When the pressure is too high due to changes in ambient temperature or water depth, the pressure control valve 9 opens the pressure relief channel to balance the pressure. When the pressure is too low, gas is introduced through the air inlet pipe 8 to ensure that the sealing gasket 1 and the airtight cloth always maintain a suitable contact pressure and avoid sealing failure. The pull ring 7 facilitates the installation and removal of the sealing device. The structural design of the edge of the sealing gasket 1 and the continuous restraint of the fastening band 6 jointly prevent the device from falling off. Multiple mechanisms work together to ensure the reliability of the sealing device in complex marine environments and ensure the stable and long-lasting sealing performance of the airtight cloth life raft.

[0025] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. An air tight cloth life raft sealing device, characterized in that, include: A sealing gasket (1) is provided with four insertion holes (2). The inner surface of each of the four insertion holes (2) is provided with a positioning pin (3). An air inlet pipe (8) is fixedly connected to the upper surface of the sealing gasket (1). A pressure control valve (9) is fixedly connected to the outer surface of the air inlet pipe (8). A pull ring (7) is fixedly connected to the upper surface of the sealing gasket (1). A buckle (5) is provided on the upper surface of the sealing gasket (1). A fastening band (6) is provided on the inner surface of the buckle (5). A sealing adhesive layer (10) is provided on the lower surface of the sealing gasket (1). A pressure sensor (11) is fixedly connected to the lower surface of the sealing gasket (1).

2. An airbag-inflatable life raft sealing device according to claim 1, wherein, The side surface of the sealing gasket (1) is provided with a raised structure (4), which is in contact with the airtight cloth.

3. The airtight fabric life raft sealing device according to claim 1, characterized in that, The sealing gasket (1) is shaped to fit the parts of the airtight fabric life raft that need to be sealed.

4. The airtight fabric life raft sealing device according to claim 1, characterized in that, The sealant layer (10) is located at the position where the sealing gasket (1) and the airtight cloth are in contact, and the sealant layer (10) is made of polyurethane sealant.

5. The airtight fabric life raft sealing device according to claim 1, characterized in that, The sealing gasket (1) is made of rubber sheet.

6. The airtight fabric life raft sealing device according to claim 1, characterized in that, The pressure sensor (11) is wirelessly connected to the pressure control valve (9).

7. The airtight fabric life raft sealing device according to claim 1, characterized in that, A sealing ring is provided on the inner surface of the insertion hole (2).

8. The airtight fabric life raft sealing device according to claim 1, characterized in that, The fastening band (6) is made of high-strength nylon webbing.

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