CN109428215B - Wire switching pipe - Google Patents
Wire switching pipe Download PDFInfo
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- CN109428215B CN109428215B CN201710762291.1A CN201710762291A CN109428215B CN 109428215 B CN109428215 B CN 109428215B CN 201710762291 A CN201710762291 A CN 201710762291A CN 109428215 B CN109428215 B CN 109428215B
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- Prior art keywords
- wire
- cavity
- wall
- main body
- gasket
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/46—Bases; Cases
- H01R13/52—Dustproof, splashproof, drip-proof, waterproof, or flameproof cases
- H01R13/5202—Sealing means between parts of housing or between housing part and a wall, e.g. sealing rings
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- Connector Housings Or Holding Contact Members (AREA)
- Media Introduction/Drainage Providing Device (AREA)
Abstract
The invention provides a wire switching conduit, which is used for sealing connection between two cavities which are isolated from each other, and comprises: the outer wall of the main body is divided into two sections in the connecting direction of the first cavity and the second cavity, the sectional area of the outer wall of the first section is larger than that of the outer wall of the second section, so that a shaft shoulder structure is formed at the junction of the two sections of outer walls, the main body is embedded in the connecting end wall of the first cavity, one side of the main body is pressed and positioned by the connecting end wall of the second cavity, and the other side of the main body is blocked and positioned by the connecting end wall of the first cavity through the shaft shoulder structure; the interior of the main body is provided with a section of hollow cavity structure in the connecting direction so as to accommodate the pressing block, and the sealing pad is pressed in the hollow cavity structure by the pressing block; the wire transition catheter has at least one channel distributed in the connection direction for wire interconnection between the first lumen and the second lumen.
Description
Technical Field
The invention relates to a guide wire switching guide pipe, in particular to a guide wire switching guide pipe which is good in sealing performance and easy to replace.
Background
Because of the limited maximum operating temperature of the electric components such as the electro-hydraulic servo valve and the linear displacement sensor, when the electric components are installed in an environment beyond the normal operating temperature range, such as an actuator cylinder and a hydraulic mechanical device, the electric components need to be cooled by using the working fluid.
Generally, an electric component such as an electro-hydraulic servo valve, a linear displacement sensor, etc. is placed in an electric connector with a cooling cavity, as shown in fig. 1, the electric connector includes a socket portion 100 and a main body portion 200, the main body portion 200 is divided into the cooling cavity 210 and an air cavity 220, wherein the cooling cavity 210 is filled with a working fluid 211, the electric component 300 is placed in the cooling cavity 210 filled with the working fluid, and a lead wire 400 of the electric component is led out from the cooling cavity 210 and connected to the socket portion 100 of the electric connector through the air cavity 220.
In order to prevent the socket portion from being damaged by the pressure and corrosion of the working fluid and to prevent oil leakage and short circuit, the cooling chamber portion needs to have good sealing performance. In the prior art, the lead 400 of the electrical component is usually cast with high temperature plastic in the cooling cavity, as shown in part 212 in fig. 1, so as to ensure the sealing performance of the cooling cavity. However, the above-mentioned technology cannot timely and conveniently replace or maintain the electrical element when the electrical element is failed or out of order, and can only be maintained by returning to the factory for replacement, which requires a long time and is difficult to replace.
Therefore, there is a need for a wire adapter tube that can not only lead out the wires of the electrical components while satisfying the sealing performance of the cooling cavity, but also be easily disassembled for facilitating the maintenance of the electrical components.
Disclosure of Invention
The invention aims to provide a wire switching guide tube, which is used for solving the problem that a wire of an electric element is led out from between two mutually isolated cavities under the condition of ensuring the sealing property.
In order to achieve the above object, the present invention provides a wire transition duct for sealing connection between two first and second cavities isolated from each other, the wire transition duct including a main body, a sealing gasket and a compression block, the outer wall of the main body being divided into two sections in the connection direction of the first and second cavities, the cross-sectional area of the outer wall of the first section being larger than that of the outer wall of the second section, so as to form a shaft shoulder structure at the junction of the two outer walls, the main body being embedded in the connection end wall of the first cavity, one side of the main body being compressed and positioned by the connection end wall of the second cavity, the other side being blocked and positioned by the connection end wall of the first cavity through the shaft shoulder structure; the interior of the main body is provided with a section of hollow cavity structure in the connecting direction so as to accommodate the pressing block, and the sealing pad is pressed in the hollow cavity structure by the pressing block; the wire transfer catheter is distributed with at least one channel in the connecting direction for wire interconnection between the first cavity and the second cavity.
In an example, the main body, the sealing gasket and the pressing block are respectively distributed with the same number of through holes in the connecting direction, and the through holes in the main body, the sealing gasket and the pressing block are aligned in the connecting direction to form the at least one channel.
In one example, the body, the gasket, and the compression block have detents therein for alignment between the body, the gasket, and the through-hole of the compression block.
In one example, the diameter of the through hole on the sealing gasket is smaller than the diameter of the wire.
In one example, the aperture of the through hole on the main body and the compression block is larger than the diameter of the wire.
In one example, the first section of outer wall is provided with a groove around the circumference for placing a sealing rubber ring.
In an example, the cross-sectional shape of the body includes one of a circle, a rectangle, a regular polygon.
In one example, the gasket is a rubber gasket.
In one example, the outer end face of the hollow cavity structure inside the main body is closed.
In one example, the outer end face of the hollow cavity structure inside the main body is closed by riveting.
As described above, according to the wire adapter guide provided by the invention, the wire adapter guide is fixed through the main body of the wire adapter guide and the fixing sealing gasket of the pressing block and through the shaft shoulder structure of the main body and the position relationship of the two cavities, so that the step of pouring for fixing the led-out wire in the prior art is omitted, and compared with the prior art, the wire adapter guide is detachable, and the maintenance and the repair of an electric element are facilitated. Meanwhile, the wire switching guide pipe achieves a sealing effect through a sealing gasket fixed by the main body and the pressing block, and mutual isolation between two adjacent cavities is guaranteed. The sealing rubber ring placed in the groove in the outer wall of the main body is combined, so that a better double sealing effect can be achieved.
The purpose, technical content, features and effects of the present invention will be more readily understood by the following detailed description of the embodiments with reference to the accompanying drawings.
Drawings
Fig. 1 shows a structural cross-sectional view of a prior art electrical connector.
FIG. 2 shows a cross-sectional view of a detailed construction of one embodiment of the guide wire transition catheter of the present invention.
Fig. 3 shows a cross-sectional view of another embodiment of the guidewire transition catheter of the present invention.
Fig. 4 is a cross-sectional view of an electrical connector employing one embodiment of the wire transition guide of the present invention.
FIG. 5 shows a side view of one embodiment of the guide wire transition catheter of the present invention.
Detailed Description
The invention is described in detail below with reference to the figures and specific embodiments. It is noted that the aspects described below in connection with the figures and the specific embodiments are only exemplary and should not be construed as imposing any limitation on the scope of the present invention.
FIG. 2 shows a cross-sectional view of a detailed construction of one embodiment of the guide wire transition catheter of the present invention. The wire transition duct includes a body 510, a gasket 520, and a compression block 530. The outer wall of the main body is divided into a first section outer wall and a second section outer wall, the sectional area of the first section outer wall is larger than that of the second section outer wall, and a shaft shoulder structure is formed at the junction of the two sections of outer walls. The interior of the main body has a section of hollow cavity structure for accommodating the pressing block 530, and the sealing pad 520 is pressed in the hollow cavity structure by the pressing block. The wire switching conduit is provided with at least one channel in the connecting direction for leading in and leading out a wire.
Fig. 3 shows a cross-sectional view of another embodiment of the guidewire transition catheter of the present invention. The wire transition duct includes a body 510 gasket 520 and a compression block 530. The outer wall of main part divide into first section outer wall and second section outer wall, and the cross sectional area of first section outer wall is greater than the cross sectional area of second section outer wall, and first section outer wall is provided with recess 511 around circumference and is used for placing the rubber seal, constitutes the shaft shoulder structure in the juncture of two sections outer walls. The interior of the main body has a section of hollow cavity structure for accommodating the pressing block 530, and the sealing pad 520 is pressed in the hollow cavity structure by the pressing block. The wire switching conduit is provided with at least one channel in the connecting direction for leading in and leading out a wire.
In one embodiment, the gasket is a rubber gasket, but it should be noted that the specific material of the gasket depends on the application scenario, and is not limited thereto.
In one embodiment, the cross-sectional shape of the wire transition catheter body is circular. In another embodiment, the wire-transition catheter body has a rectangular cross-sectional shape. In another embodiment, the cross-sectional shape of the wire transition catheter body is a regular polygon.
In one embodiment, after the sealing pad is pressed in the hollow cavity structure by the pressing block, the outer end face of the hollow cavity structure is closed. Preferably, the closing-up may be performed by riveting, but not limited thereto.
Fig. 4 is a cross-sectional view of an electrical connector employing one embodiment of the wire transition guide of the present invention. The electrical connector comprises a socket part 100 and a main body part 200, the main body part 200 is divided into a cooling cavity 210 and an air cavity 220, wherein the cooling cavity 210 is filled with working fluid 211, one embodiment of the wire transfer conduit is embedded in the connecting end of the cooling cavity 210, the main body part of the wire transfer conduit has a shoulder structure, and the shoulder structure is used for stopping the main body by the connecting end wall of the cooling cavity and starting the function of fixing the wire transfer conduit to move towards the cooling cavity. The outside of the first outer wall with the larger cross sectional area of the main body is contacted with the connecting end wall of the air cavity, the main body is compressed and positioned by the connecting end wall of the air cavity, and the effect of moving the fixed wire switching conduit to the air cavity direction is achieved. By means of the cooling cavity and the air cavities on the left side and the right side, the wire switching guide pipe is embedded and fixed in the cooling cavity, and the fixing effect can be achieved without adopting a pouring mode in the prior art.
Meanwhile, the wire switching guide pipe is not poured in the cooling cavity, so that the wire switching guide pipe can be conveniently detached when the condition that the electric element needs to be maintained occurs, the electric element can be replaced without returning to a factory, and the maintainability is good.
The main body, the sealing gasket and the pressing block of the wire transfer guide pipe are respectively provided with through holes with the same number in the connecting direction, and the through holes of the main body, the sealing gasket and the pressing block are aligned in the connecting direction to form at least one channel of the wire transfer guide pipe.
The electrical component 300 is placed in a cooling chamber filled with a working fluid, and the wires of the electrical component 300 are led out of the electrical component, passed through the working fluid, the wire transfer conduit and the air chamber and finally connected to the socket portion 100 of the electrical connector. In one embodiment of the present invention, the wires leading from the electrical component are a wire bundle, the individual wires 410 are wrapped in a rubber, the individual wires 410 are separated from the wire bundle, then led out of the cooling chamber through the channels of the wire transfer conduit, and then connected to the socket portion through the air chamber.
The through holes in the main body and the pressing block have the hole diameter slightly larger than the diameter of the wire to be penetrated so as to facilitate the wire to pass through. The through hole is arranged in the sealing gasket, the aperture of the through hole is slightly smaller than the diameter of a wire to be penetrated, when the wire penetrates through the sealing gasket, the effect of interference sealing can be achieved through the smaller aperture, and the sealing performance of the wire switching guide pipe is guaranteed.
In an embodiment, the first section outer wall of the wire switching guide pipe main body is provided with a groove 511 around the circumferential direction for placing a sealing rubber ring, when the wire switching guide pipe main body is installed in the cooling cavity, the sealing rubber ring can achieve a good sealing effect, and is matched with a sealing gasket in the wire switching guide pipe, so that a double sealing effect is achieved, and the sealing performance of the wire switching guide pipe is ensured.
FIG. 5 shows a side view of one embodiment of the guide wire transition catheter of the present invention. Be provided with constant head tank 540 in the corresponding position of main part, sealed pad and compact heap, can guarantee that three's through-hole is located same axis according to this constant head tank 540 to can conveniently, accurately aim at the through-hole when installing, guarantee that the wire still can keep on same axis after through main part, sealed pad and compact heap.
According to the scheme of the invention, the lead switching guide pipe can effectively solve the sealing problem caused by lead leading out of a gas-liquid joint surface. Meanwhile, the guide wire switching guide pipe has a simple structure, is suitable for mass production, has wide application and can be widely applied to sealing of gas-liquid interface. The structure of the wire switching guide pipe has better maintainability, and the electric element can be replaced without returning to a factory.
The above-mentioned embodiments are merely illustrative of the technical spirit and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the content of the present invention and to implement the same, so that the scope of the present invention should not be limited thereto, i.e., all equivalent changes and modifications made in the spirit of the present invention should be covered by the scope of the present invention.
Claims (10)
1. A lead switching device comprises a first cavity and a second cavity which are isolated from each other, and a lead switching guide pipe for hermetically connecting the first cavity and the second cavity, and is characterized in that the lead switching guide pipe comprises a main body, a sealing gasket and a pressing block, wherein,
the outer wall of the main body is divided into two sections in the connecting direction of the first cavity and the second cavity, the sectional area of the outer wall of the first section is larger than that of the outer wall of the second section, so that a shaft shoulder structure is formed at the junction of the two sections of outer walls, the main body is embedded in the connecting end wall of the first cavity, one side corresponding to the outer wall of the first section is pressed and positioned by the connecting end wall of the second cavity, and the other side is blocked and positioned by the connecting end wall of the first cavity through the shaft shoulder structure,
the interior of the main body is provided with a section of hollow cavity structure in the connecting direction to accommodate the pressing block, the sealing pad is pressed in the hollow cavity structure by the pressing block,
the wire transition catheter has at least one channel distributed in the connection direction for wire interconnection between the first lumen and the second lumen.
2. The wire adapter of claim 1, wherein the body, the gasket, and the compression block each have the same number of through holes distributed therein in the connection direction, the through holes in the body, the gasket, and the compression block being aligned in the connection direction to form the at least one channel.
3. The wire transition device of claim 2, wherein said body, said gasket, and said compression block have detents therein for alignment between said through holes of said body, said gasket, and said compression block.
4. The wire adapter of claim 2, wherein the through hole in the gasket has a diameter smaller than the diameter of the wire.
5. The wire adapter of claim 4, wherein the through-holes in the body and the compression block have a diameter that is larger than the diameter of the wire.
6. The wire adapter of claim 1, wherein the first section of the outer wall is provided with a groove around the circumference for placing a sealing rubber ring.
7. The wire adapter of claim 1, wherein the cross-sectional shape of the body comprises one of a circle, a rectangle, and a regular polygon.
8. The wire adapter of claim 1, wherein the gasket is a rubber gasket.
9. The lead transition device of claim 1, wherein the outer end surface of the hollow cavity structure inside the body is necked-in.
10. The lead transition device of claim 9, wherein the outer end surface of the hollow cavity structure inside the body is riveted shut.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710762291.1A CN109428215B (en) | 2017-08-30 | 2017-08-30 | Wire switching pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710762291.1A CN109428215B (en) | 2017-08-30 | 2017-08-30 | Wire switching pipe |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109428215A CN109428215A (en) | 2019-03-05 |
| CN109428215B true CN109428215B (en) | 2020-07-28 |
Family
ID=65503989
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710762291.1A Active CN109428215B (en) | 2017-08-30 | 2017-08-30 | Wire switching pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109428215B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4262913A (en) * | 1978-09-07 | 1981-04-21 | International Standard Electric Corporation | High pressure gland for optical fibres and/or electrical conductors |
| US4871328A (en) * | 1988-09-14 | 1989-10-03 | Simmonds Precision Products, Inc. | Hermetically sealing connector and method of use thereof |
| WO1994013047A1 (en) * | 1992-11-23 | 1994-06-09 | A.C. Egerton Limited | Multiple cable wall gland |
| US5588858A (en) * | 1995-03-15 | 1996-12-31 | Itt Corporation | Connector system with wedge and grommet retainer |
| US5732771A (en) * | 1991-02-06 | 1998-03-31 | Moore; Boyd B. | Protective sheath for protecting and separating a plurality of insulated cable conductors for an underground well |
| US6716063B1 (en) * | 2000-02-28 | 2004-04-06 | Pgs Exploration (Us), Inc. | Electrical cable insert |
| US7658230B2 (en) * | 2007-11-15 | 2010-02-09 | Baker Hughes Incorporated | High pressure insulated electrical, fiber and tubing feed-through fitting assembly |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1675241A1 (en) * | 2004-12-23 | 2006-06-28 | MAN Turbomaschinen AG Schweiz | Sealed cable feedthrough |
| ITMI20050125U1 (en) * | 2005-04-08 | 2006-10-09 | I Guzzini Illuminazione Srl | POND CONNECTOR FOR CABLES |
| JP2008071565A (en) * | 2006-09-13 | 2008-03-27 | Nitta Moore Co | Connection structure between lead wire and heater wire |
| JP4823980B2 (en) * | 2007-07-30 | 2011-11-24 | ニッタ株式会社 | Equipment with heating and heat insulation tubes |
| FR2994021B1 (en) * | 2012-07-27 | 2014-08-22 | Mecanique Magnetique Sa | ELECTRICAL CONNECTOR SEALED FOR MAGNETIC BEARINGS |
-
2017
- 2017-08-30 CN CN201710762291.1A patent/CN109428215B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4262913A (en) * | 1978-09-07 | 1981-04-21 | International Standard Electric Corporation | High pressure gland for optical fibres and/or electrical conductors |
| US4871328A (en) * | 1988-09-14 | 1989-10-03 | Simmonds Precision Products, Inc. | Hermetically sealing connector and method of use thereof |
| US5732771A (en) * | 1991-02-06 | 1998-03-31 | Moore; Boyd B. | Protective sheath for protecting and separating a plurality of insulated cable conductors for an underground well |
| WO1994013047A1 (en) * | 1992-11-23 | 1994-06-09 | A.C. Egerton Limited | Multiple cable wall gland |
| US5588858A (en) * | 1995-03-15 | 1996-12-31 | Itt Corporation | Connector system with wedge and grommet retainer |
| US6716063B1 (en) * | 2000-02-28 | 2004-04-06 | Pgs Exploration (Us), Inc. | Electrical cable insert |
| US7658230B2 (en) * | 2007-11-15 | 2010-02-09 | Baker Hughes Incorporated | High pressure insulated electrical, fiber and tubing feed-through fitting assembly |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109428215A (en) | 2019-03-05 |
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