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Plug type circuit sealing device

A sealed circuit, plug-in technology, applied in the direction of engine sealing, measurement, mechanical equipment, etc., can solve the problems of easy loosening and external fluid intrusion, and achieve reliable sealing, quick plug connection, convenient installation and follow-up maintenance. Effect

Active Publication Date: 2012-08-15
CHINA NAT OFFSHORE OIL CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The sealing cover of such a structure is easily loosened by vibration and impact, and is easily invaded by external fluid.

Method used

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  • Plug type circuit sealing device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0014] The present invention is a pluggable sealed circuit device, which is installed outside the drill collar and is easy to maintain. The specific structure is as follows:

[0015] Such as Figure 1~3 As shown, the present invention mainly includes a movable sealing body 1 that is pluggably installed on the drill collar base 11, and the moving sealing body 1 further includes: a sealing base 2 and an arc-shaped sealing top cover 3, and a useful seal is set on the sealing base 2. The accommodating cavity 5 for accommodating the circuit board 4; the arc-shaped sealing top cover 3 is fastened on the sealing base 2, and the top of the arc-shaped sealing top cover 3 forms an arc-shaped surface 6 matching the surface of the drill collar base 11.

[0016] A sealing groove 7 is opened on the surface of the sealing base 2 opposite to the arc-shaped sealing top cover 3 , and a sealing ring 8 is installed in the sealing groove 7 . Through this sealing structure, the sealing between the...

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Abstract

The invention discloses a plug type circuit sealing device, which comprises a mobile sealing body arranged on a drill collar matrix in a pluggable way. The mobile sealing body further comprises a sealing base and an arc-shaped sealing top cover, wherein the sealing base is provided with an accommodating chamber used for accommodating a circuit board, the arc-shaped sealing top cover is buckled onthe sealing base, the top end of the arc-shaped sealing top cover forms an arc-shaped surface which is matched with the surface of the drill collar matrix; the surface of the sealing base, corresponding to the arc-shaped sealing top cover, is provided with a sealing groove, a sealing ring is arranged in the sealing groove; and the arc-shaped sealing top cover is also provided with a plug which ismatched with the internal structure of the drill collar matrix, and the plug is electrically connected with the circuit board through a wire. The invention realizes the rapid plug connection, greatlyfacilitates the installation and follow-up maintenance of the equipment, and simultaneously, ensures that the circuit board can be well sealed to be prevented from being damaged by the fluid through the drill collar.

Description

technical field [0001] The invention relates to a circuit structure used on the base body of a well logging instrument. Background technique [0002] It is usually necessary to install some circuit boards on the drill collar to complete the related test work. Such as Figure 4 As shown, the current method for installing the circuit board on the drill collar base is to process a rectangular groove on the drill collar base 11, place the circuit board 4 in it, and finally seal it flat with the sealing cover 20. The sealing cover of such a structure is easily loosened by vibration and impact, and is easily invaded by external fluid. Contents of the invention [0003] Aiming at the problems existing in the prior art, the purpose of the present invention is to provide a pluggable sealed circuit device, which can not only ensure the safety of the circuit, but also realize rapid pull-out and interchange, and the sealing performance is reliable and convenient under high shock and ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21B17/16E21B47/01F16J15/06E21B47/00
Inventor 冯永仁庞希顺
Owner CHINA NAT OFFSHORE OIL CORP
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