CN202991013U - Connecting sealing structure - Google Patents

Connecting sealing structure Download PDF

Info

Publication number
CN202991013U
CN202991013U CN 201220713723 CN201220713723U CN202991013U CN 202991013 U CN202991013 U CN 202991013U CN 201220713723 CN201220713723 CN 201220713723 CN 201220713723 U CN201220713723 U CN 201220713723U CN 202991013 U CN202991013 U CN 202991013U
Authority
CN
China
Prior art keywords
cylinder
seal
hermetically
sealed construction
aforementioned
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN 201220713723
Other languages
Chinese (zh)
Inventor
张友红
赵宗奇
曾勇
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Guizhou Aerospace Kaishan Petroleum Instrument Co Ltd
Original Assignee
Guizhou Aerospace Kaishan Petroleum Instrument Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Guizhou Aerospace Kaishan Petroleum Instrument Co Ltd filed Critical Guizhou Aerospace Kaishan Petroleum Instrument Co Ltd
Priority to CN 201220713723 priority Critical patent/CN202991013U/en
Application granted granted Critical
Publication of CN202991013U publication Critical patent/CN202991013U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Abstract

The utility model discloses a connecting sealing structure comprising a telemetering cylinder of a gyro inclinometer. An external thread connected with a headstall is arranged on the telemetering cylinder, a tool withdrawal groove is arranged at the bottom of the external thread, a sealing socket used for inserting the headstall is arranged at the end of the telemetering cylinder, a footstep cylinder is arranged on the telemetering cylinder, is arranged on the same axis of the sealing socket and is used for inserting a connecting plug of the headstall, a seal groove is arranged on a major diameter cylinder of the footstep cylinder, and a seal ring is arranged in the seal groove. Double seal is adopted to prevent under-well liquid from flowing into the gyro inclinometer, so that operational reliability of the gyro inclinometer can be guaranteed. The liquid cannot flow into the gyro inclinometer even if leakage occurs between the gyro inclinometer and the headstall, so that safety of circuits and devices inside the gyro inclinometer can be well guaranteed.

Description

A kind of connection hermetically-sealed construction
Technical field
the utility model relates to a kind of connection hermetically-sealed construction, and the hermetically-sealed construction that is connected of a kind of gyrolevel telemetry cartridge and head harness particularly belongs to the technical field of sealing technology of downhole instrument.
Background technology
downhole instrument usually and head harness be tightly connected, head harness is connected with wire rope or cable, and downhole instrument is delivered to underground work.But due to but there is mismachining tolerance in the size of each oil field head harness, the size of the head harness of same specification is also variant; In addition the head harness replacement cycle in oil field long, head harness can long-term Reusability, so also makes the closure size of halter be worn gradually so that the larger deviation of appearance causes poorly sealed close problem.
plugs and sockets in the moment gyroscope inclinometer is not taked seal approach, in use have the following disadvantages: a is due to the otherness of each halter closure size, poorly sealed while causing possibly being connected with logging instrument, because down-hole pressure is too high, make the logging instrument remote measurement produce and reveal; B, due to the prolonged and repeated use of halter, causes the wearing and tearing of closure size, and this also can make poorly sealed while being connected with logging instrument and cause logging instrument to be revealed; C is once being connected of logging instrument and halter occur revealing, and because plugs and sockets does not have secondary seal, can cause down-hole liquid to bleed in the logging instrument remote measurement and damage instrument.
Summary of the invention
the purpose of this utility model is, the be connected hermetically-sealed construction of a kind of gyrolevel telemetry cartridge with head harness is provided, sealing performance while being connected with head harness to improve gyrolevel, prevent from that down-hole liquid from bleeding in gyrolevel to cause the damage instrument, thereby overcome the deficiencies in the prior art.
the technical solution of the utility model is to form like this: a kind of connection hermetically-sealed construction of the present utility model is, this structure comprises the telemetry cartridge of gyrolevel, be provided with the external screw thread be connected with head harness on telemetry cartridge, the external screw thread bottom is provided with escape, in the end of telemetry cartridge, be provided with for the seal socket with head harness grafting use, on telemetry cartridge, be provided with seal socket at the conduct of same axial line and the step cylinder of head harness attachment plug grafting use, be provided with seal groove on the cylinder with large diameter of this step cylinder, be provided with sealing ring in seal groove.
in aforementioned means, the cylinder with large diameter of described step cylinder is provided with two seal grooves, in two seal grooves, is respectively equipped with sealing ring.
in aforementioned means, described sealing ring is O shape cushion rubber.
in aforementioned means, in the installing hole of described seal socket, be provided with internal thread, be connected with the compression plug on internal thread.
in aforementioned means, described compression plug is tubulose, and the cylindrical of this tubulose pipe is provided with screw thread.
in aforementioned means, between described compression plug and seal socket, be provided with sealing mat.
in aforementioned means, described sealing mat is the Plastic Flat packing ring.
owing to having adopted technique scheme, the utility model adopts the mode of socket and plug duplex connecting structure simultaneously and adopts the mode of double sealing to prevent that down-hole liquid from infiltrating gyrolevel, to guarantee the functional reliability of gyrolevel.The first sealing is to be provided with two seal grooves on the cylinder with large diameter of step cylinder, is respectively equipped with O shape cushion rubber in two seal grooves.The second sealing is that the Plastic Flat packing ring is set on seal socket, by compressing plug, the Plastic Flat packing ring is pressed on seal socket and forms the second sealing.Owing to having taked above measure, even seepage occurred between gyrolevel and head harness, can not infiltrate in gyrolevel yet, thereby well protect the safety of gyrolevel internal circuit device.Therefore, the utility model compared with prior art, sealing performance when the utility model can not only effectively improve gyrolevel and is connected with head harness, and the utility model can also effectively prevent that down-hole liquid from bleeding in gyrolevel and causes the damage instrument.The utility model not only is applicable to gyrolevel, also is applicable to the multiple downhole logging instruments of oil field high pressure and corrosive atmosphere that is subject to and seals.
The accompanying drawing explanation
fig. 1 is structural representation of the present utility model.
being labeled as in figure: 1-seal socket, 2-sealing ring, 3-telemetry cartridge, 4-sealing mat, 5-compress plug, 6-external screw thread, 7-escape.
The specific embodiment
below in conjunction with accompanying drawing, the utility model is described in further detail, but not as to any restriction of the present utility model.
embodiment of the present utility model, the utility model be according to following a kind of gyrolevel telemetry cartridge with head harness, be connected the sealing method constructed, the method is when the telemetry cartridge by existing gyrolevel is connected with existing head harness, produce in advance the plug and socket that is connected use with head harness (same on telemetry cartridge, also corresponding socket and plug should be set on existing head harness), on plug He in socket, sealing ring all is set simultaneously, like this when the telemetry cartridge by gyrolevel is connected with head harness, can be connected with head harness and be sealed by the mode of the dual connection of plug and socket and double seal.
the of the present utility model a kind of schematic diagram that connects hermetically-sealed construction built according to said method as shown in Figure 1, this structure comprises the telemetry cartridge 3 of existing gyrolevel, during making, produce the external screw thread 6 that can be connected with head harness on telemetry cartridge 3, and in external screw thread 6 bottoms, escape 7 is set, be provided for the seal socket 1 with head harness grafting use in the end of telemetry cartridge 3, on telemetry cartridge 3, arrange with seal socket 1 at the conduct of same axial line and the step cylinder of head harness attachment plug grafting use, 2 seal grooves are set on the cylinder with large diameter of this step cylinder, sealing ring 2 all is set in every seal groove, sealing ring 2 is O shape cushion rubber, in order to reach better connection and sealing effectiveness, produce internal thread in the hole of seal socket 1, and be connected with on internal thread and compress plug 5, this compresses plug 5 is tubulose, the cylindrical of its tubulose pipe is provided with screw thread, between compression plug 5 and seal socket 1, a sealing mat 4 is set simultaneously, the existing Plastic Flat packing ring of sealing pad 4 employing.。

Claims (7)

1. a connection hermetically-sealed construction, the telemetry cartridge (3) that comprises gyrolevel, it is characterized in that: be provided with the external screw thread (6) be connected with head harness on telemetry cartridge (3), external screw thread (6) bottom is provided with escape (7), in the end of telemetry cartridge (3), be provided with for the seal socket with head harness grafting use (1), on telemetry cartridge (3), be provided with seal socket (1) at the conduct of same axial line and the step cylinder of head harness attachment plug grafting use, be provided with seal groove on the cylinder with large diameter of this step cylinder, be provided with sealing ring (2) in seal groove.
2. connect according to claim 1 hermetically-sealed construction, it is characterized in that: the cylinder with large diameter of aforementioned step cylinder is provided with two seal grooves, is respectively equipped with sealing ring (2) in two seal grooves.
3. connect according to claim 2 hermetically-sealed construction, it is characterized in that: aforementioned sealing ring (2) is O shape cushion rubber.
4. connect according to claim 1 hermetically-sealed construction, it is characterized in that: be provided with internal thread in the hole of aforementioned seal socket (1), be connected with on internal thread and compress plug (5).
5. connect according to claim 4 hermetically-sealed construction, it is characterized in that: aforementioned compression plug (5) is tubulose, and the cylindrical of its tubulose pipe is provided with screw thread.
6. connect according to claim 4 hermetically-sealed construction, it is characterized in that: between aforementioned compression plug (5) and seal socket (1), be provided with sealing mat (4).
7. connect according to claim 6 hermetically-sealed construction, it is characterized in that: aforementioned sealing mat (4) is the Plastic Flat packing ring.
CN 201220713723 2012-12-21 2012-12-21 Connecting sealing structure Active CN202991013U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201220713723 CN202991013U (en) 2012-12-21 2012-12-21 Connecting sealing structure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201220713723 CN202991013U (en) 2012-12-21 2012-12-21 Connecting sealing structure

Publications (1)

Publication Number Publication Date
CN202991013U true CN202991013U (en) 2013-06-12

Family

ID=48562204

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 201220713723 Active CN202991013U (en) 2012-12-21 2012-12-21 Connecting sealing structure

Country Status (1)

Country Link
CN (1) CN202991013U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103132988A (en) * 2012-12-21 2013-06-05 贵州航天凯山石油仪器有限公司 Method and device of connection sealing of gyro inclinometer telemetry cylinder and headstall

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103132988A (en) * 2012-12-21 2013-06-05 贵州航天凯山石油仪器有限公司 Method and device of connection sealing of gyro inclinometer telemetry cylinder and headstall
CN103132988B (en) * 2012-12-21 2016-01-20 贵州航天凯山石油仪器有限公司 A kind of gyrolevel telemetry cartridge is connected the method and device that seal with head harness

Similar Documents

Publication Publication Date Title
CN102683995A (en) Water-seal electric connector
CN203881486U (en) Self-sealing type pressure gage joint
CN202991013U (en) Connecting sealing structure
CN202712567U (en) Cable glue-pouring sealing structure and connector component
CN204225787U (en) Cross linear sealing joint
CN203589673U (en) Downhole instrument connection cable sealing structure
CN203445584U (en) Single core cable sealing connecting device
CN103132988B (en) A kind of gyrolevel telemetry cartridge is connected the method and device that seal with head harness
CN207348849U (en) Electron pressure test monitoring device
CN201593393U (en) Automatic expansion type external pipe packer
CN205141614U (en) Pipe type cable connector
CN202970609U (en) Coal seam water injection hole packer with novel pipe joint
CN202900259U (en) Simple oil well casing string pressure testing device
CN203288844U (en) A single-core connector
CN204212733U (en) A kind of gun drilling pressure measurement plugging device
CN205986088U (en) Coiled tubing cable seal head
CN204457479U (en) The structure that a kind of minor diameter is excessively multi-thread
CN203547624U (en) Expansion pipe scooping bottom plug with elastic claw
CN204171961U (en) A kind of disassembling fixture of downhole instrument sealing obturating plug
CN210264613U (en) High-pressure sealing device for cable passing through wellhead
CN203594402U (en) Oil tube plugging device
CN203499583U (en) Non-rotation connector used for connecting continuous pipe and underground tool
CN203223217U (en) Bit pressure testing connector
CN203201489U (en) Sucker rod assembly mechanism with reset function
CN202834563U (en) Water distributor

Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant