CN103775053B - The portable connection structure of coaxial shielding line between seal chamber under high temperature and pressure - Google Patents
The portable connection structure of coaxial shielding line between seal chamber under high temperature and pressure Download PDFInfo
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- CN103775053B CN103775053B CN201210406393.7A CN201210406393A CN103775053B CN 103775053 B CN103775053 B CN 103775053B CN 201210406393 A CN201210406393 A CN 201210406393A CN 103775053 B CN103775053 B CN 103775053B
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- shielding
- connector sleeve
- connection structure
- gum cover
- twist needle
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Abstract
The present invention relates to the portable connection structures of coaxial shielding line between seal chamber under high temperature and pressure.Propose a kind of connection structure being made of the quick gum cover connection-peg and co-axial seal plug that use under high temperature, condition of high voltage, the connection structure includes: gum cover, shielding connector sleeve, insulation sleeve, core connector sleeve, copper ring, twist needle, fried dough twist needle stand, the quick gum cover connection-peg and co-axial seal plug of heat-shrink tube composition.The connection structure is easily installed maintenance, stable and reliable for performance.
Description
Technical field
The present invention relates to the companies communicated between two seal chambers by coaxial shielding line in a kind of oil well logging instrument
Binding structure more particularly relates to the quick gum cover connection-peg to work exclusively for the design of coaxial shielding line, at high temperature under high pressure
With co-axial seal plug.
Background technique
Oil well logging instrument will go deep into measuring in the stratum of different depth, and environment temperature and pressure are with depth of stratum
Increase and increase, therefore, the design of all oil well logging instrument structures must be able to bear high temperature and pressure working environment.It is logical
Effective electric signal that normal instrument is directly returned from geological environment around is relatively small and weak, adds the architectonic shadow of complex formation
It rings, such signal more seems faint.In order to enhance the specific gravity of direct useful signal, the influence of noise is eliminated to a greater extent, it is new-type
The signal connecting line of high-precision oil-base mud micro resistor instrument uses coaxial shielding line and is communicated.
In common bus connection method, for common electric wire, line end insulation layer is removed a part and exposes core by maintenance personal
Line, is welded on fixed plug, equating with scolding tin, is then put on the effective hot wind of one or more layers pyrocondensation and is blown tightly.For coaxial
Line, core wire and shielding line are respectively welded, and be then locked heat-shrink tube respectively.The shortcomings that such conventional method is that pyrocondensation pipe diameter is bad
Matching connects, seals unreliable, while shape is unsightly, and maintenance is time-consuming.
Summary of the invention
It is easily installed maintenance, coaxial shielding wire connection structure stable and reliable for performance the object of the present invention is to provide a kind of,
Circuit path for being connected in oil well logging instrument inside two discontinuous seal chambers.
In order to meet above-mentioned requirements, the present invention provides a kind of quick gum cover grafting by using under high temperature, condition of high voltage
The connection structure of head and co-axial seal plug composition, the connection structure include: gum cover, shielding connector sleeve, insulation sleeve, core connection
Set, copper ring, twist needle, fried dough twist needle stand, the quick gum cover connection-peg and co-axial seal plug of heat-shrink tube composition.
Quick gum cover connection-peg is the normal detachable maintaining end of entire connection structure, when the reasons such as some component part damage are made
At connection-peg cannot be intact its function of realization when, can by it is entire quickly gum cover connection-peg cut off, in coaxial shielding line end
Remake a new connection-peg.Only need the movement inserted or pulled out that can realize line using quick gum cover connection-peg
On-off.Co-axial seal plug is the fixing end of connection structure, is infrequently dismantled, for being mounted on having on instrument sealing cavity configuration
In the hole of sealing surface.
According to an aspect of the invention, it is proposed that one kind is close for two in oil well logging instrument under high temperature, condition of high voltage
The connection structure communicated between envelope chamber using coaxial shielding line, the connection structure are included: gum cover 11, shield connector sleeve 12, is exhausted
The quick gum cover connection-peg that edge set 13, core connector sleeve 14, ring bodies 15, twist needle 16, fried dough twist needle stand 18, heat-shrink tube 17 form,
With co-axial seal plug 110；It is characterized in that, quickly gum cover connection-peg can directly plug co-axial seal beyond the Great Wall, to constitute
Signal path, anti-tampering access and sealing structure.
According to another aspect of the present invention, the shielded wire harness 32 of coaxial shielding line passes through shielding connector sleeve 12, described coaxial
The shielding conductting layer 43 of sealing-plug is axial to be in turn connected to form anti-tampering access；The inner core 34 of coaxial shielding line, fried dough twist needle stand 18,
The conductive mandrel 41 of twist needle 16, core connector sleeve 14 and the co-axial seal plug is axial to be in turn connected to form signal path；Core connects
Female connector 14 and shielding connector sleeve 12 are insulated by insulation sleeve 13；The inner core 34, fried dough twist needle stand 18 and twist needle 16 pass through pyrocondensation
Pipe insulate with shielding connector sleeve 12；It shields connector sleeve and passes through gum cover 11 and ambient dielectric and sealing.
According to another aspect of the invention, annular seal grooves are contained in the inner cavity of the gum cover.
According to another aspect of the invention, the shielding connector sleeve includes and can wrap up the shielded wire harness and can pass through
There is penetrating open slot in the end of the shoulder that the ring bodies is fixedly clamped, the shielding connector sleeve.
According to another aspect of the invention, the external process of the insulation sleeve has zigzag hangnail.
According to another aspect of the invention, the external process of the core connector sleeve has zigzag hangnail, the core connector sleeve
End be machined with penetrating open slot.
According to another aspect of the invention, the fried dough twist needle stand is machined with step inner cavity and the step inner cavity
Opening.
According to another aspect of the invention, the co-axial seal plug is machined with sealing shoulder, seal groove and connection screw thread.
According to another aspect of the invention, the ring bodies is copper ring.
The positive effect of the present invention is that quick gum cover connection-peg installation, maintenance is convenient, and high temperature and pressure seal performance can be good,
Communication connection is more stable and reliable；Co-axial seal plug is fixed structure, is seldom dismantled, plug will not be because of the edge often dismantled
Therefore sealing ring is caused to damage, accidents, the sealing performance such as sealing surface damage are more reliable.
Detailed description of the invention
Fig. 1 is the perspective view of connection structure；
Fig. 2 is the sectional view of connection structure；
Fig. 2A is quick gum cover grafting head-tail enlarged drawing；
Fig. 3 is the cross-sectional view of coaxial shielding line；
Coaxial line shielding line end structure processing figure before Fig. 3 A is assembled；
Fig. 4 is the sectional view of co-axial seal plug；
Fig. 5 is fried dough twist needle stand sectional view；
Fig. 6 is core connector sleeve sectional view；
Fig. 7 is insulation sleeve sectional view；
Fig. 8 is shielding connector sleeve sectional view；
Fig. 9 is gum cover sectional view.
Specific embodiment
As depicted in figs. 1 and 2, quick gum cover connection-peg is by gum cover 11, shielding connector sleeve 12, insulation sleeve 13, core connector sleeve
14, copper ring 15, twist needle 16, heat-shrink tube 17 and fried dough twist needle stand 18 are assembled together in a certain order and are articulated in coaxial screen
Cover the end composition of line 19.Quick gum cover connection-peg is inserted in one unilateral signal path of composition on co-axial seal plug 110, simultaneously
Play sealed environment medium.
The cross section of coaxial shielding line is as shown in figure 3, outside in, each layer structure is external insulation layer 31, shielding line respectively
Beam layer 32, inner insulating layer 33 and very thin conductive core 34.As shown in Figure 3A, in the pre-assembly, coaxial shielding line end is processed
At certain structure: peeling the external insulation layer 31 of certain length off, expose shielded wire harness 32；Then remove the interior insulation of certain length
Layer 33 exposes conductive core 34.
The schematic structure of quick gum cover connection-peg is as follows:
1. insulation sleeve 13 is tightly placed in 14 outside of core connector sleeve, the Excircle machining of core connector sleeve 14 has zigzag hangnail, protects
Core connector sleeve 14, which will not reversely loosen, after card assembly is completed retracts；Shielding connector sleeve 12 is tightly placed in insulation sleeve 13 and core connector sleeve
Outside the overall structure of 14 compositions.It shields connector sleeve 12, insulation sleeve 13 and core connector sleeve 14 and forms an independent build-up member.
The big end of shielding connector sleeve 12 and core connector sleeve 14 is provided with 6 penetrating open slots, with the ability of flexible deformation, energy after closing in
Guarantee that access contact is reliable.
2. twist needle is threaded together the needle formed, the entirety of needle by nine fine wires with excellent conductive performance
Shape closes on one of end and is wound in a bulge, the effect of bulge is to make twist needle in insertion gold similar to twisted shape
Flexible pretightning force when belonging in pipe guarantees that contact is reliable.Twist needle 16 is inserted in 18 one end of fried dough twist needle stand far from one end of bulge
In inner cavity, depth is suitable, and by the position of tight two feature contacts of special vice sub-folder, fried dough twist needle stand 18 is deformed, and tightly clamps fiber crops
Floricome.Twist needle 16 and fried dough twist needle stand 18 form an independent build-up member.
3. the inner core 34 of 19 end certain length of coaxial shielding line is inserted into the inner cavity of 18 other end of fried dough twist needle stand sky.?
The inner core 34 of exposing and fried dough twist needle stand are welded as a whole with scolding tin in shape of a saddle opening above fried dough twist needle stand 18, solder joint is repaired
It pats whole.The heat-shrink tube 17 of upper appropriate length is covered on from inner insulating layer 33 to twist needle 16.Shielding line inner core 34, heat-shrink tube 17,
Fried dough twist needle stand 18 and twist needle 16 just connect into the independent structure patched.Core connector sleeve 14 is inserted at the twist needle end of this structure
In the pore of tail portion.19 end of coaxial shielding line is removed the external insulation layer 31 of certain length, and the shielded wire harness 32 of exposing is uniform
In the outside cylinder of shielding 12 tail portion of connector sleeve, copper ring 15 entangles on the shielded wire harness to scatter ground packet.Copper ring passes through dedicated pliers
After clamping, entire shielding line 19 is reliably fixed on to the tail portion of shielding connector sleeve 12.In this way, two that 1 and 2 liang of clause is mentioned
Independent build-up member and coaxial shielding line are assembled into an entirety completely.
4. gum cover 11 is tightly placed in the integrally-built outside of the above overall structure composition, complete quick gum cover is formd
Connection-peg.
110 section of co-axial seal plug as indicated at 4, is from inside outwards followed successively by conductive mandrel 41, insulating layer 42, shielding conductting layer
43, insulating layer 44 and external metallization structure sheaf 45.Successively being crimped between each layer by special die becomes an entirety.Insulation
Layer 44 has an arc-shaped sealing shoulder above, for cooperating with the annular seal grooves 91 of gum cover 11, has both guaranteed that gum cover was inserted
Head end will not be loosened because of foeign elements such as vibrations, and realize more reliable sealing.There is a seal groove on structured metal layer 45
Be machined with one section of screw thread.Screw thread is packed into O-ring, with seal chamber knot for connecting with fixed sealing cavity configuration in seal groove
The corresponding sealing surface of structure forms sealing structure.
After fast joint is inserted into above co-axial seal, two pathway for electrical signals: the conductive core of shielding line 19 are formed
34, the conductive mandrel 41 of fried dough twist needle stand 18, twist needle 16, core connector sleeve 14 and co-axial seal plug is axially in turn connected to form logical
Road；The shielded wire harness 32 of shielding line 19, shields connector sleeve 12 and co-axial seal plug shielding conductting layer axially connects the anti-dry of formation
Disturb access.Core connector sleeve 14 and shielding connector sleeve 12 are insulated by insulation sleeve 13；Conductive core 34, fried dough twist needle stand 18 and twist needle 16
It is insulated by heat-shrink tube and shielding connector sleeve 12；It shields connector sleeve and passes through gum cover 11 and ambient dielectric.
18 section of fried dough twist needle stand is as shown in figure 5, be the tubule structures with step inner cavity, one end has one to be used for
It is inserted into the inner cavity 51 of shielding line conductive core 34, the other end has one for being inserted into the inner cavity 53 of twist needle, in conductive core 34
The direction of chamber has the shape of a saddle of a penetrating outside to be open, for welding conductive core 34.
14 section of core connector sleeve is as shown in fig. 6, its effect is by the conductive core 34 and co-axial seal plug of coaxial shielding line
110 conductive mandrel 41 is connected to.It is the inside and outside tubular structure for all having stepped cylindrical, and one end has one to be used to be inserted into twist needle
The inner cavity 61 of head, the other end have one for being inserted into the inner cavity 62 of conductive mandrel, and external process has hangnail 63,62 outer end of inner cavity
It is machined with 6 penetrating open slots 64.Hangnail realizes that part unidirectionally assembles and does not skid off that open slot is had later using pliers necking
The function of spring-like, can guarantee reliable contacts.
13 section of insulation sleeve is as shown in fig. 7, it, for completely cutting off conductive core and shielding line access, is one with step inner cavity
Tubular structure, it is external there are two hangnail 71, may be implemented unidirectionally to install and do not skid off.
Shielding 12 section of connector sleeve is as shown in figure 8, it is used to connect the shielded wire harness 32 of coaxial shielding line 19 and coaxial close
The shielding conductting layer 43 of blocking 110.Its end is machined with 6 penetrating open slots 81, and open slot has class after using pliers necking
Like the function of spring, it can guarantee reliable contacts.Tail portion is a step tubule, can wrap up shielded wire harness and clamp company by copper ring
It connects.
For 11 section of gum cover as shown, its main effect is the entire conducting structure of sealing, inside and outside has step circles
The tubular structure of column, inside have annular seal grooves 91 corresponding with 110 sealing shoulder of co-axial seal plug.Sealed groove and sealing
Shoulder is fitted close, sealed reliable, guarantees that connection structure does not loosen.
The embodiment is only used to illustrate and not limit the technical solutions of the present invention.Although referring to above-described embodiment to the present invention
It is described in detail, but those skilled in the art should understand that: it still modifies to the present invention or equivalent
Replacement, without departing from the spirit and scope of the present invention, and affiliated claim is intended to fall into the sum of spirit of that invention
These modifications or equivalent replacement in range.
Claims (8)
1. a kind of be used in oil well logging instrument communicate between two seal chambers using coaxial shielding line under high temperature, condition of high voltage
Connection structure, the connection structure include: gum cover (11), shielding connector sleeve (12), insulation sleeve (13), core connector sleeve (14),
The quick gum cover connection-peg and co-axial seal that ring bodies (15), twist needle (16), fried dough twist needle stand (18), heat-shrink tube (17) form
It fills in (110)；It is characterized in that, quickly gum cover connection-peg can directly plug co-axial seal beyond the Great Wall, thus constitute signal path,
Anti-tampering access and sealing structure, wherein the twist needle seat is machined with opening for step inner cavity and the step inner cavity
Mouthful.
2. connection structure as described in claim 1, it is characterised in that: the shielded wire harness (32) of coaxial shielding line is connected by shielding
Female connector (12), shielding conductting layer (43) axial direction of the co-axial seal plug are in turn connected to form anti-tampering access；Coaxial shielding line
Inner core (34), fried dough twist needle stand (18), twist needle (16), core connector sleeve (14) and the co-axial seal plug conductive mandrel
(41) axial to be in turn connected to form signal path；Core connector sleeve (14) and shielding connector sleeve (12) are insulated by insulation sleeve (13)；
The inner core (34), fried dough twist needle stand (18) and twist needle (16) pass through heat-shrink tube and shielding connector sleeve (12) insulation；Shielding connection
Set passes through gum cover (11) and ambient dielectric and sealing；Wherein the ring bodies is copper ring.
3. connection structure as claimed in claim 2, it is characterised in that: contain annular seal grooves in the inner cavity of the gum cover.
4. connection structure as claimed in claim 2, it is characterised in that: the shielding connector sleeve includes that can wrap up the shielding
There is penetrating open slot in the end of harness and the shoulder that can be fixedly clamped by the ring bodies, the shielding connector sleeve.
5. connection structure as claimed in claim 2, it is characterised in that: the external process of the insulation sleeve has zigzag hangnail.
6. connection structure as claimed in claim 2, it is characterised in that: the external process of the core connector sleeve has zigzag to fall
Thorn, the end of the core connector sleeve is machined with penetrating open slot.
7. connection structure as described in claim 1, it is characterised in that: the co-axial seal plug is machined with sealing shoulder, sealing
Slot and connection screw thread.
8. connection structure as described in claim 1, it is characterised in that: the ring bodies is copper ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210406393.7A CN103775053B (en) | 2012-10-23 | 2012-10-23 | The portable connection structure of coaxial shielding line between seal chamber under high temperature and pressure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210406393.7A CN103775053B (en) | 2012-10-23 | 2012-10-23 | The portable connection structure of coaxial shielding line between seal chamber under high temperature and pressure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103775053A CN103775053A (en) | 2014-05-07 |
| CN103775053B true CN103775053B (en) | 2019-01-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210406393.7A Active CN103775053B (en) | 2012-10-23 | 2012-10-23 | The portable connection structure of coaxial shielding line between seal chamber under high temperature and pressure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103775053B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104952518B (en) * | 2015-05-26 | 2017-07-11 | 奇瑞汽车股份有限公司 | Shielding line |
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| CN102237156A (en) * | 2010-04-08 | 2011-11-09 | 住友电气工业株式会社 | Shielded cable |
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| CN102570117A (en) * | 2012-02-15 | 2012-07-11 | 贵州航天电器股份有限公司 | Stranded wire-type elastic contact pin |
| CN102570077A (en) * | 2011-12-29 | 2012-07-11 | 杭州航天电子技术有限公司 | Wire connector and assembling method of shielded twisted pair |
| CN202977919U (en) * | 2012-10-23 | 2013-06-05 | 中国石油集团长城钻探工程有限公司 | Portable connection structure of coaxial shielding line between sealing cavities at high temperature and under high pressure |
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2012
- 2012-10-23 CN CN201210406393.7A patent/CN103775053B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1947309A (en) * | 2004-03-02 | 2007-04-11 | 蒂科电子公司 | Coaxial cable connector with improved shielding |
| CN200964842Y (en) * | 2006-11-02 | 2007-10-24 | 西安市思坦电子科技有限公司 | Plug type sealing stopper |
| CN201097403Y (en) * | 2007-09-20 | 2008-08-06 | 垠旺精密股份有限公司 | Antenna structure |
| CN201170411Y (en) * | 2007-11-05 | 2008-12-24 | 深圳市宏商热缩材料有限公司 | Insulation/stress composite thermal contraction tube |
| CN102237156A (en) * | 2010-04-08 | 2011-11-09 | 住友电气工业株式会社 | Shielded cable |
| WO2012030365A1 (en) * | 2010-08-31 | 2012-03-08 | 3M Innovative Properties Company | High density shielded electrical cable and other shielded cables, systems, and methods |
| CN102570077A (en) * | 2011-12-29 | 2012-07-11 | 杭州航天电子技术有限公司 | Wire connector and assembling method of shielded twisted pair |
| CN102570117A (en) * | 2012-02-15 | 2012-07-11 | 贵州航天电器股份有限公司 | Stranded wire-type elastic contact pin |
| CN202977919U (en) * | 2012-10-23 | 2013-06-05 | 中国石油集团长城钻探工程有限公司 | Portable connection structure of coaxial shielding line between sealing cavities at high temperature and under high pressure |
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| CN103775053A (en) | 2014-05-07 |
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