CN202991013U - Connecting sealing structure - Google Patents
Connecting sealing structure Download PDFInfo
- 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
- head harness
- 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.)
- Expired - Lifetime
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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
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.
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 Expired - Lifetime CN202991013U (en) | 2012-12-21 | 2012-12-21 | Connecting sealing structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202991013U (en) |
Cited By (2)
| 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 |
| CN108049862A (en) * | 2018-01-18 | 2018-05-18 | 苏州金科发能源技术有限公司 | The special orientation joint of wireless drilling inclinometers |
-
2012
- 2012-12-21 CN CN 201220713723 patent/CN202991013U/en not_active Expired - Lifetime
Cited By (3)
| 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 |
| CN108049862A (en) * | 2018-01-18 | 2018-05-18 | 苏州金科发能源技术有限公司 | The special orientation joint of wireless drilling inclinometers |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130612 |
|
| CX01 | Expiry of patent term |