CN201273830Y - Sealing and fixing apparatus for air tight intra-housing lead wire - Google Patents
Sealing and fixing apparatus for air tight intra-housing lead wire Download PDFInfo
- Publication number
- CN201273830Y CN201273830Y CNU200820099854XU CN200820099854U CN201273830Y CN 201273830 Y CN201273830 Y CN 201273830Y CN U200820099854X U CNU200820099854X U CN U200820099854XU CN 200820099854 U CN200820099854 U CN 200820099854U CN 201273830 Y CN201273830 Y CN 201273830Y
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- China
- Prior art keywords
- taper hole
- column
- fixing device
- plug
- air tight
- 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 - Fee Related
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Abstract
The utility model relates to a sealing and fixing device of the leading-out wire inside an air tightness shell. The sealing and fixing device is characterized in that the main body of the sealing and fixing device is a cylindrical body; a lug boss is fixed in the middle section of the cylindrical body; external screw threads are respectively fixed on the cylindrical sections on both sides of the lug boss; a taper hole passing through the cylindrical body in the axial direction is fixed in the center of the cylindrical body; the taper hole is provided with a frustum of cone-shaped sealing ring; a plug-in inserts into the end of the taper hole with a large diameter; a nut matches with the screw thread of the cylindrical section on the end of the taper hole with a small diameter ; and a screwcap pressing the plug-in matches with the screw thread of the cylindrical section on the end of the taper hole with the large diameter. The utility model adopts the coercionary sealing device, which solves the problems of well sealing the position through which the leading wire of the air tightness shell penetrates, and ensuring the air tightness of the shell. The utility model has the advantages of simple structure and easy assembly.
Description
Technical field
The utility model relates to a kind of sealed fixing device, particularly a kind of sealed fixing device of air tight enclosure inside lead.
Background technology
Usually air tight enclosure often need be drawn lead in housing, is used for the gas in the housing is derived.When lead was drawn in air tight enclosure, it is particularly important that its extension line passes the sealing at housing place.At present, it with the sealing of air tight enclosure extension line (being example with the gas meter, flow meter): plastics connector of cover in combustion gas watchcase wire hole, with O-ring seal hermetically sealed connector and inner walls, the end that connector stretches out housing has screw thread, be pressed on the housing with nut, metal connection post inserts is arranged in the connector, end in housing is used for welding the lead of built-in valve, but through regular meeting the connector plastic molting appears when the built-in valve lead of welding, cause leaking gas around the connector binding post, and when welding also be difficult to guarantee its good welding effect, be easy to generate rosin joint, cause poor wire connection; And the metal connection column length phase is exposed in the watchcase and is corroded easily in the gas, makes scarf the slit occur, produces combustion gas and reveals.
Summary of the invention
The purpose of this utility model is the problem that exists at prior art, a kind of sealed fixing device of air tight enclosure inside lead is provided, it adopts the packoff of suppressing that the lead place of passing of air tight enclosure is well sealed, guarantee the impermeability of housing, and advantage simple in structure, easy to assembly is arranged.
The technical solution of the utility model is: the main body of described sealed fixing device is a column, the stage casing of described column is provided with boss, the cylindrical section of boss both sides is respectively equipped with external thread, the column center is provided with the taper hole of axial perforation, be provided with round table-like O-ring seal in the taper hole, the bigger diameter end of taper hole inserts plug-in unit, and the cylindrical section threaded engagement that column is positioned at taper hole path one end has nut, and the cylindrical section threaded engagement that column is positioned at the big footpath of taper hole one end has the blind nut that plug-in unit is pushed down.
Owing to adopted such scheme, sealed fixing device is made up of column, nut, blind nut, casting die, and column, nut, blind nut, casting die all adopt corrosion-resistant material, avoid it by gas attack.Wherein the column center is hollow taper hole, and round table-like O-ring seal is filled in taper hole, by blind nut and casting die round table-like O-ring seal is pushed against and form sealing in taper hole, and making round table-like O-ring seal is squeezed state, and its excellent elasticity can tightly wrap extension line; The wire hole that one end of column taper hole path is passed air tight enclosure is fastened on the housing with nut, and the extension line of air tight enclosure is drawn housing from the taper hole of bolt, makes and forms sealing between pinout connector and the air tight enclosure.
Column of the present utility model, nut, blind nut, casting die all adopt corrosion-resistant material, can avoid the combustion gas that causes because of corrosion to reveal and cause loose contact because of corrosion; Extension line is directly drawn air tight enclosure by the taper hole of column, does not need welding, can also avoid because of the poor wire connection that welding causes, the shortcoming of gas leakage.The utility model is simple in structure in addition, advantage easy to assembly.
Description of drawings
Accompanying drawing is a structural representation of the present utility model
In the accompanying drawing, 1 is blind nut, and 2 is column, and 2a is a boss, and 3 is O-ring seal, and 4 is nut, and 5 is round table-like O-ring seal, and 6 is plug-in unit, and 6a is a flange.
Specific embodiment
Referring to accompanying drawing, the main body of sealed fixing device is set to a column 2, the stage casing of column is provided with boss 2a, the cylindrical section of boss both sides is respectively equipped with external thread, the column center is provided with the taper hole of axial perforation, be provided with round table-like O-ring seal 5 in the taper hole, round table-like O-ring seal is provided with axially extending bore, and described through hole is flat hole.Be used to draw the extension line of air tight enclosure, make it can pass through round table-like O-ring seal 5 easily.The bigger diameter end of taper hole inserts plug-in unit 6, and the cylindrical section threaded engagement that column is positioned at taper hole path one end has nut 4, and the cylindrical section threaded engagement that column is positioned at the big footpath of taper hole one end has the blind nut 1 that plug-in unit is pushed down.Described plug-in unit is two, and its shape is identical with length, and the cross section of this plug-in unit is semicircle, and the bigger diameter end diameter of round table-like O-ring seal is greater than the radius of two plug-in units.The end that described plug-in unit contacts with blind nut is provided with flange 6a radially, and blind nut is tightened on the hollow bolt, when the flange of plug-in unit is attached on the blind nut, is about to rubber seal plug and compresses.The miner diameter end diameter of round table-like O-ring seal is greater than the taper hole miner diameter end diameter of column, during with the fastening column of nut, the taper hole miner diameter end of column is pressed on the front end of column with the extension line of air tight enclosure, produces gas leakage around can not making lead, guarantees the impermeability of housing.The end face of the boss in described column stage casing is provided with ring groove, and O-ring seal 3 is embedded in the ring groove, is used for the sealing between column boss and the air tight enclosure.Column, nut, blind nut, casting die all adopt corrosion-resistant material, as, plastics, brass etc. are avoided packoff being corroded property gas attack in long-term gas.
Embodiment
With the gas meter, flow meter is the example explanation.Round table-like O-ring seal is filled in taper hole from the bigger diameter end of column taper hole, two plug-in units push against undergauge with round table-like O-ring seal and are fixed in the taper hole of column and form sealing, the extension line of gas meter, flow meter motorized valve passes the axially extending bore of plug-in unit and round table-like O-ring seal, regulate the length of extension line, screw blind nut, make it to push down the end face of plug-in unit and push round table-like O-ring seal, the flange for the treatment of plug-in unit is attached on the blind nut, extension line is tightly wrapped up by round table-like O-ring seal, makes lead can not produce other leakages on every side.Lay O-ring seal in the ring groove of the raised head face of column, the small end of column makes and forms sealing between column and the gas meter, flow meter housing wall by passing in the housing.The small end cover top nut of column, because the miner diameter end diameter of round table-like O-ring seal is greater than the taper hole miner diameter end diameter of column, therefore the front end of round table-like O-ring seal can only enter into the front portion of the taper hole path of column, and can not arrive at the front end of the taper hole path of assistant's head, screw nut 6, nut compresses the front end of column, extension line is sealed in the front end of column, promptly solved the gas leakage problem that between wire terminal and the gas meter, flow meter housing, the measuring accuracy and the security of gas meter, flow meter are guaranteed.
Claims (6)
1. the sealed fixing device of an air tight enclosure inside lead, it is characterized in that: the main body of described sealed fixing device is a column, the stage casing of described column is provided with boss, the cylindrical section of boss both sides is respectively equipped with external thread, the column center is provided with the taper hole of axial perforation, be provided with round table-like O-ring seal in the taper hole, the bigger diameter end of taper hole inserts plug-in unit, the cylindrical section threaded engagement that column is positioned at taper hole path one end has nut, and the cylindrical section threaded engagement that column is positioned at the big footpath of taper hole one end has the blind nut that plug-in unit is pushed down.
2. the sealed fixing device of air tight enclosure inside lead according to claim 1 is characterized in that: described round table-like O-ring seal is provided with axially extending bore, and described through hole is flat hole.
3. the sealed fixing device of air tight enclosure inside lead according to claim 1 is characterized in that: the miner diameter end diameter in the flat hole of described round table-like O-ring seal is greater than the taper hole miner diameter end diameter of column.
4. the sealed fixing device of air tight enclosure inside lead according to claim 1, it is characterized in that: described plug-in unit is two, its shape is identical with length, and the cross section of this plug-in unit is semicircle, and the bigger diameter end diameter of round table-like O-ring seal is greater than the radius of two plug-in units.
5. according to the sealed fixing device of claim 1 or 4 described air tight enclosure inside leads, it is characterized in that: the end that described plug-in unit contacts with blind nut is provided with flange radially.
6. the sealed fixing device of air tight enclosure inside lead according to claim 1 is characterized in that: the end face of the boss in described column stage casing is provided with ring groove, and O-ring seal is embedded in the ring groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200820099854XU CN201273830Y (en) | 2008-08-29 | 2008-08-29 | Sealing and fixing apparatus for air tight intra-housing lead wire |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200820099854XU CN201273830Y (en) | 2008-08-29 | 2008-08-29 | Sealing and fixing apparatus for air tight intra-housing lead wire |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201273830Y true CN201273830Y (en) | 2009-07-15 |
Family
ID=40884177
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU200820099854XU Expired - Fee Related CN201273830Y (en) | 2008-08-29 | 2008-08-29 | Sealing and fixing apparatus for air tight intra-housing lead wire |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201273830Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103391655A (en) * | 2013-07-12 | 2013-11-13 | 曲颜发 | Electrode leading-out terminal |
| CN105134552A (en) * | 2015-08-24 | 2015-12-09 | 洛阳三隆安装检修有限公司 | Sealing nut used for reciprocating compressor crankcase stay bolt |
| CN106716076A (en) * | 2014-07-29 | 2017-05-24 | Gwf测量系统股份公司 | Housing comprising a sealing element, sealing element for the housing, and method for manufacturing the sealing element |
| CN107284619A (en) * | 2017-05-27 | 2017-10-24 | 青岛鲁航气囊护舷有限公司 | A kind of lower pendulum-type shock resistance inflation fender sealing draw ring |
| CN107298158A (en) * | 2017-05-27 | 2017-10-27 | 青岛鲁航气囊护舷有限公司 | A kind of shock resistance inflation fender sealing draw ring |
| CN109211425A (en) * | 2018-10-12 | 2019-01-15 | 中国航发沈阳发动机研究所 | A kind of attached component of air cooling total temperature detector probe tail |
-
2008
- 2008-08-29 CN CNU200820099854XU patent/CN201273830Y/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103391655A (en) * | 2013-07-12 | 2013-11-13 | 曲颜发 | Electrode leading-out terminal |
| CN106716076A (en) * | 2014-07-29 | 2017-05-24 | Gwf测量系统股份公司 | Housing comprising a sealing element, sealing element for the housing, and method for manufacturing the sealing element |
| CN105134552A (en) * | 2015-08-24 | 2015-12-09 | 洛阳三隆安装检修有限公司 | Sealing nut used for reciprocating compressor crankcase stay bolt |
| CN107284619A (en) * | 2017-05-27 | 2017-10-24 | 青岛鲁航气囊护舷有限公司 | A kind of lower pendulum-type shock resistance inflation fender sealing draw ring |
| CN107298158A (en) * | 2017-05-27 | 2017-10-27 | 青岛鲁航气囊护舷有限公司 | A kind of shock resistance inflation fender sealing draw ring |
| CN107284619B (en) * | 2017-05-27 | 2022-08-23 | 青岛鲁航气囊护舷有限公司 | Lower-swing type impact-resistant inflatable fender sealing pull ring |
| CN109211425A (en) * | 2018-10-12 | 2019-01-15 | 中国航发沈阳发动机研究所 | A kind of attached component of air cooling total temperature detector probe tail |
| CN109211425B (en) * | 2018-10-12 | 2020-04-21 | 中国航发沈阳发动机研究所 | Air-cooled total temperature sensing part tail attachment assembly |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: CHONGQING QIANWEI INSTRUMENT CO., LTD. Free format text: FORMER NAME: CHONGQING QIANWEI METER FACTORY |
|
| CP03 | Change of name, title or address |
Address after: 401121 Chongqing New District, Mount Huangshan Road, No. 69 Patentee after: Chongqing Qianwei Instrument Co., Ltd. Address before: 400021 three village, Dashi dam, Jiangbei District, Chongqing Patentee before: Chongqing Qianwei Meter Factory |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090715 Termination date: 20160829 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |