Internal vacuum valve

Abstract

The invention relates to an internal vacuum valve. The internal vacuum valve is characterized in that a valve sleeve is fixed onto a shell by the aid of a washer and nuts, a valve spool is arranged in the valve sleeve, a valve bonnet is arranged on the valve spool, annular grooves are formed in the outer wall of the valve spool, first retainer rings and first sealing rings are arranged in the annular grooves, another annular groove is formed in the outer wall of the valve sleeve, a second retainer ring and a second sealing ring are arranged in the annular groove in the outer wall of the valve sleeve, a through hole which is communicated with an annular groove in the inner wall of the valve sleeve is further formed in the valve sleeve, and a stop screw penetrates a hole in the bottom of the valve sleeve to be connected with the valve spool. The internal vacuum valve has the advantages that an underwater unmanned submersible vehicle, an aircraft shell and the shell can be effectively connected with one another, the work intensity of operators can be reduced, the assembling, disassembling and detecting time can be shorted, and the work efficiency can be improved; components inside a product can keep in vacuum states for a long time, the cleanness of the components inside the product can be improved, and accordingly the service life of the product can be prolonged.

Description

[0001] technical field [0002] The invention relates to a vacuum valve, in particular to a built-in vacuum valve used for connection between shells of underwater unmanned submersibles and aircrafts. Background technique [0003] At present, all the sealing shells of underwater vehicles and aircraft are usually connected by mechanical methods such as wedge ring connection, clamp connection or bolt connection. The parts of these connection methods are not only manufactured Complicated, difficult to manufacture, high cost, and in the process of assembly, inspection, lake and sea test, when repairing, inspecting and disassembling, the operator has cumbersome procedures, high labor intensity, time-consuming and laborious, and it usually takes tens of minutes to disassemble and assemble a shell. It may cause bumps and damage to the product, resulting in unpredictable losses. Contents of the invention [0004] The technical problem to be solved by the present invention is to ov...

AI Technical Summary

Problems solved by technology

[0003] At present, all the sealing shells of underwater vehicles and aircraft are usually connected by mechanical methods such as wedge ring connection, clamp connection or bolt connection. The parts of these connection methods are not only manufactured Complicated, difficult to manufacture, high cost, and in the process of assembly, inspection, lake and sea test, when repairing, inspecting and disassembling, the operator has cumbersome procedures, high labor intensity, time-consuming and laborious, and it usually takes tens of minutes to disassemble and assemble a shell. It may cause bumps and damage to the product, resulting in unpredictable losses

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