Water inlet device and its installation structure

Abstract

The invention discloses a water inlet device, comprising a device main body, a sealing member, an elastic member for unsealing, a stop pin and an unlocking mechanism; the sealing member is characterized in that the sealing member is a cylindrical structure as a whole, and the axial direction of the sealing member is close to two The positions of the end faces are two sealing ends, and the outer sides of the two sealing ends are provided with at least one sealing groove equipped with an O-ring; The sealing of the water inlet; the position between the two sealing ends on the sealing element is the water inlet section with an outer diameter smaller than the two sealing ends, and the water inlet on the main body of the device is communicated with the annular space on the outer periphery of the water inlet section; the stopper on the sealing element The limiting structure is arranged at the position between the sealing groove and the adjacent end face; the device body is provided with an elastic member for releasing the sealing for pushing or pulling the sealing member. The invention also discloses the installation structure of the above water inlet device. The invention has the advantages of low noise, good privacy, environmental protection and the like.

Description

technical field [0001] The invention belongs to the field of underwater equipment, in particular to a water inlet device and an installation structure thereof. Background technique [0002] The water inlet device can be used for military or civilian underwater robots, underwater vehicles or underwater deployment systems. For example, an application scenario is: when the underwater vehicle does not need to be recovered after performing the task, it can be sunk through the water inlet device. For example, another application scenario is: after the underwater deployment system is deployed, in order to ensure the balance of the system, such as entering water in the cabin, to compensate for the weight loss of the deployed objects separated from the underwater deployment system, ensuring that The underwater deployment system can continue to sail or recover reliably. [0003] There are two kinds of water inlet devices commonly used at present: one is the method of using pyrotechn...

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Problems solved by technology

[0005] In the above-mentioned prior art, the upper end of the cylindrical sealing water inlet rod is used to form a plug to block the water inlet hole. In this way, the upper end of the cylindrical sealing water inlet rod is in contact with water and bears the pressure of water, and According to the liquid pressure formula P = ρgh (ρ liquid density, g gravity acceleration, h depth), F = PS (pressure equal to pressure multiplied by force area), it can be known that the deeper the water, the water pressure on the upper end of the sealed water inlet rod The greater the pressure, the pressure will be transmitted through the cylindrical seal water inlet rod and the fixed pin will be gradually clamped, making it more difficult for the linear motor to drive the fixed pin to achieve water inlet, and it will easily lead to no water inlet

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