CN105305327B - A kind of low pressure cable sealing device and its manufacture method - Google Patents
A kind of low pressure cable sealing device and its manufacture method Download PDFInfo
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- CN105305327B CN105305327B CN201510878511.8A CN201510878511A CN105305327B CN 105305327 B CN105305327 B CN 105305327B CN 201510878511 A CN201510878511 A CN 201510878511A CN 105305327 B CN105305327 B CN 105305327B
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- seal groove
- cable
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Abstract
The invention discloses a kind of low pressure cable sealing device and its manufacture method, wherein the sealing device includes sealing body, cable, sealing body has the inner chamber run through in left-right direction, cable is arranged in the inner chamber of sealing body, fluid sealant is filled with annular space in cable and sealing shroud body between cavity wall, at least one end of sealing body left and right ends is provided with the sealing fit portion for being used for axially docking with the interface of low pressure casing.Sealing device is axially docked on low pressure case, coordinated using the sealing fit portion of body is sealed with the sealing joint of low pressure case.The information exchange between test specimen and detection device during low-atmospheric pressure test is realized, this method is simply easily operated, and good sealing effect, connection is reliable.
Description
Technical field
The present invention relates to a kind of low pressure cable sealing device and its manufacture method.
Background technology
Low pressure test chamber generally requires that detection device is powered or connect to the inside of chamber, at this moment when doing gas pressure test
It is accomplished by the sealing problem for solving that cable is inscribed to chamber；Cable sealing device is exactly to solve from outside（Atmospheric pressure environment）To
Inside chamber（Subatmospheric power）Cross the sealing problem of line.Traditional method is mostly close by media such as plasticine or planks
Envelope, it is impossible to reach preferable sealing effectiveness.
The content of the invention
It is an object of the invention to provide a kind of low pressure cable sealing device manufacture method, to solve existing encapsulating method
To the technical problem of cable seal effect difference.The present invention also provides a kind of low pressure cable seal manufactured by this method and filled simultaneously
Put.
In order to realize the above object the technical scheme of low pressure cable sealing device manufacture method is as follows in the present invention：It is low
Air pressure cable sealing device manufacture method, comprises the following steps, 1）By cable along sealing body axially across；2）In sealing body
One end be provided for closure sealing body inner chamber baffle plate；3）The other end from sealing body is into the inner chamber of sealing body
Fluid sealant is poured into, makes the space between inwall and cable periphery wall of the fluid sealant full of sealing body；4）After fluid sealant solidification,
Remove baffle plate.
Block seal groove is equipped with the sealing shroud body on wall, the block seal groove is located in sealing shroud intracoelomic cavity
Portion, the internal diameter of the block seal groove is more than the internal diameter of the internal chamber wall positioned at its both sides.
At least one end in the two ends of the sealing body is provided with the fitted seal groove for being used for installing sealing ring, the cooperation
The internal diameter of seal groove is more than the internal diameter of the internal chamber wall close to fitted seal groove, the fitted seal groove and close fitted seal groove
Internal chamber wall formation shoulder hole, in above-mentioned steps 3）In, do not pour into fluid sealant into the shoulder hole.
The two ends of the sealing body are equipped with fitted seal groove.
The sealing body is in Flange-shaped Parts, and the two ends of the sealing body are equipped with around its axis to be used for and low pressure case
The sealing fit portion that the interface of body is axially docked, the fitted seal groove is arranged in sealing fit portion.
The relative side of sealing fit portion described in two is provided with the conical surface is coordinated, and the interface of low pressure casing is with sealing body
Sealing fit portion docking after fastened by clip, it is described cooperation the conical surface be used for and clip inwall it is spacing coordinate.
Low pressure cable sealing device of the present invention is adopted the following technical scheme that：The sealing device includes sealing body, cable,
Sealing body has the inner chamber run through in left-right direction, and the cable is arranged in the inner chamber of sealing body, the cable and sealing
Fluid sealant is filled with annular space between body internal chamber wall, at least one end of the sealing body left and right ends, which is provided with, to be used for
The sealing fit portion axially docked with the interface of low pressure casing.
Block seal groove is equipped with the sealing shroud body on wall, the block seal groove is located in sealing shroud intracoelomic cavity
Portion, the internal diameter of the block seal groove is more than the internal diameter of the internal chamber wall positioned at its both sides.
The two ends of the sealing body are equipped with sealing fit portion, and sealing fit portion, which is provided with, to be used to install matching somebody with somebody for sealing ring
Seal groove is closed, the internal diameter of the fitted seal groove is more than the internal diameter of the internal chamber wall close to fitted seal groove, the fitted seal groove
With the internal chamber wall formation shoulder hole close to fitted seal groove.
The relative side of sealing fit portion described in two is provided with the conical surface is coordinated, and the interface of low pressure casing is with sealing body
Sealing fit portion docking after fastened by clip, it is described cooperation the conical surface be used for and clip inwall it is spacing coordinate.
Beneficial effects of the present invention：The present invention by sealing body and cable between space in pour into fluid sealant,
After fluid sealant solidification, then sealing device is axially docked on low pressure case, utilizes the sealing fit portion and low gas for sealing body
The sealing joint of case is pressed to coordinate.Realize the information exchange between test specimen and detection device during low-atmospheric pressure test, it is ensured that
The stable gas pressure of test specimen.And this method is simply easily operated, good sealing effect, connection is reliable.
Brief description of the drawings
Fig. 1 is the structural representation of low pressure cable sealing device of the present invention；
Fig. 2 is Fig. 1 A-A sectional views；
Fig. 3 is the structural representation for sealing body in Fig. 1；
Fig. 4 is Fig. 3 B-B sectional views；
Fig. 5 is the state diagram of low pressure cable sealing device of the present invention when in use.
Embodiment
The embodiment of low pressure cable sealing device of the present invention：As Figure 1-5, low pressure cable sealing device includes close
Big envelope body 2, cable 1, sealing body 2 are flange, and it has the inner chamber run through in left-right direction（Through hole）, cable 1 is arranged in close
The inner chamber of big envelope body, the two ends of cable 1, one end is used to connect test specimen, and the other end is used for connecting detection equipment.Cable 1 and sealing
Fluid sealant 3 is filled with annular space between the internal chamber wall of body 2, sealing body 2 left and right ends, which are provided with, to be used for and low pressure case
The sealing fit portion 21 that the interface 5 of body is axially docked, sealing fit portion 21 diametrically protrudes from sealing body body 22.Sealing
The inner chamber of body 2 is divided on five sections, most middle one section from left to right is equipped with block seal groove 25, one section of most middle note
For the 3rd aperture section.3rd aperture section on the left of for the first aperture section the 23, second aperture section 24, right side for the 4th aperture section
26th, the 5th aperture section 27.To prevent from deviating from fluid sealant, block seal groove 25 is located at the middle part of sealing shroud intracoelomic cavity and block is close
The internal diameter of sealing groove is more than the second aperture section for being located at its both sides, the internal diameter of the internal chamber wall of the 4th aperture section.
Sealing fit portion 21 is provided with the fitted seal groove for being used for installing sealing ring, and fitted seal groove is by the first aperture section 23
Formed, the internal diameter of fitted seal groove is more than the internal diameter of the internal chamber wall close to fitted seal groove, fitted seal groove coordinates close with close
The internal chamber wall formation shoulder hole of sealing groove, close to the internal diameter of the internal chamber wall of fitted seal groove namely the second aperture section or the 4th aperture section
Internal diameter.
The relative side of two sealing fit portion is provided with the conical surface 28 is coordinated, and the interface of low pressure casing is with sealing body
Sealing fit portion docking after fastened by clip, coordinate the conical surface 28 be used for and clip inwall it is spacing coordinate.
Low pressure cable sealing device manufacture method, comprises the following steps, 1）By cable 1 along sealing body 2 axially across；
2）The baffle plate of the inner chamber of closure sealing body is provided in one end of sealing body 2；3）The other end from sealing body 2 is to close
Fluid sealant is poured into the inner chamber of big envelope body, makes the space between inwall and cable periphery wall of the fluid sealant full of sealing body, no
Fluid sealant can be poured into shoulder hole, mainly fluid sealant can not be poured into the fitted seal groove at two ends, leads to not install
Sealing ring；4）After fluid sealant solidification, baffle plate is removed；Fluid sealant uses silica gel, and silica gel is after 24 hours solidify, then removes gear
Plate.In the present embodiment, baffle plate uses lucite, and lucite is fixed on to the close detection of sealing body using 502 glue
The side of equipment, prevents fluid sealant from revealing before curing.
After low pressure cable sealing device makes, the side of cable first passes through sealing ring, then passes through low pressure case
It is connected after interface with the product in case.The interface of low pressure case also is provided with the seal groove of ladder cellular type, sealing body and low pressure
After the interface docking of case, the seal groove that the sealing ring 7 is embedded in into interface is docked with the fitted seal groove in sealing shroud body end portion to be formed
Space in.The middle part of sealing ring 7 is radially convexly equipped with seal convexity, the part point of the both sides positioned at seal convexity of sealing ring 7
Seal groove 6, the sealing of fitted seal groove not with interface 5 coordinate.After docking, sealing body and low pressure case are stuck in by clip
Interface on, fit sealing body 2 and interface 5, the seal convexity of sealing ring 7 are located in clip.Clip is hinged on including two
The first snap ring 4, the second snap ring 10 together, one end of the first snap ring 4, which is provided with U-bolt hole, the second snap ring 10, is hinged with lock
Button, lock includes closing piece 9 and locking nut 8, and locking nut 8 is wing nut.After first snap ring 4, the second snap ring 10 are held tightly, lock
A part for block is located in U-bolt hole, then tightens locking nut 8, is locked.Sealing ring 7 is by sealing body 2 and interface
5 end face is extruded jointly, it is ensured that the sealing effectiveness of junction.Cable just can be with the examination in connecting detection equipment and low pressure case
Part carries out exhaustive test.
Annular groove 11 is provided with the inside of better seal fastening effect, clip in order that obtaining clip and having, annular groove
Both sides cell wall is tilted from inside to outside, forms the conical surface.When clip is installed, the cooperation cone in the sealing fit portion in sealing shroud body end portion
Face 28 and the spacing cooperation of the conical surface of the cell wall of clip.
The present invention realizes the Seal Design to low pressure cable, realizes test specimen and detection during low-atmospheric pressure test and sets
Communication between standby, it is ensured that the stable gas pressure of test specimen.And this method is simply easily operated, good sealing effect, connection is reliable,
Quickly, and the reliability of experiment is greatly improved.
In the present embodiment, sealing body uses flange, and sealing fit portion is formed by the ring flange of flange, and two ends are respectively provided with
There is sealing fit portion, be, in order to which when mounted, the two ends of flange can be assembled with low pressure case, to prevent test cable direction wrong
By mistake；In other embodiments, the periphery of sealing body may be alternatively configured cylindricality, rather than flange, and sealing fit portion also can only be set
Put at one end.
In other embodiments, larger the 3rd aperture section of internal diameter can be also not provided with sealing shroud body, but will be middle
Three sector hole footpaths section is arranged to the endoporus of internal diameter always.Or, also can two the 3rd apertures sections of left and right interval setting.
Claims (8)
1. low pressure cable sealing device manufacture method, it is characterised in that：Comprise the following steps, 1）By cable edge sealing body axle
To through；2）The baffle plate of the inner chamber of closure sealing body is provided in one end of sealing body；3）From the another of sealing body
Hold and pour into fluid sealant into the inner chamber of sealing body, make the sky between inwall and cable periphery wall of the fluid sealant full of sealing body
Between；4）After fluid sealant solidification, baffle plate is removed；Block seal groove, the block sealing are equipped with the sealing shroud body on wall
Groove is located at the middle part of sealing shroud intracoelomic cavity, and the internal diameter of the block seal groove is more than the internal diameter of the internal chamber wall positioned at its both sides；Institute
Stating at least one end in the two ends of sealing body and being provided with is used to installing the fitted seal groove of sealing ring, the fitted seal groove it is interior
Footpath is more than the internal diameter of the internal chamber wall close to fitted seal groove, and the fitted seal groove close to the internal chamber wall of fitted seal groove with forming
Shoulder hole, in above-mentioned steps 3）In, do not pour into fluid sealant into the shoulder hole.
2. low pressure cable sealing device manufacture method according to claim 1, it is characterised in that：The sealing body
Two ends are equipped with fitted seal groove.
3. low pressure cable sealing device manufacture method according to claim 2, it is characterised in that：It is described sealing body be in
Flange-shaped Parts, the two ends of the sealing body are equipped with the sealing axially docked for the interface with low pressure casing around its axis
Auxiliary section, the fitted seal groove is arranged in sealing fit portion.
4. low pressure cable sealing device manufacture method according to claim 3, it is characterised in that：Seal and coordinate described in two
The relative side in portion is provided with the conical surface is coordinated, and the interface of low pressure casing leads to sealing after the sealing fit portion of body is docked
Clip fastening is crossed, the cooperation conical surface is used for and the spacing cooperation of clip inwall.
5. using the low pressure cable sealing device of low pressure cable sealing device manufacturer's legal system as claimed in claim 1,
It is characterized in that：Including sealing body, cable, sealing body has the inner chamber run through in left-right direction, and the cable is arranged in
Seal and fluid sealant, the sealing are filled with the annular space in the inner chamber of body, cable and the sealing shroud body between cavity wall
At least one end of body left and right ends is provided with the sealing fit portion for being used for axially docking with the interface of low pressure casing.
6. low pressure cable sealing device according to claim 5, it is characterised in that：Ring is set on wall in the sealing shroud body
There is block seal groove, the block seal groove is located at the middle part of sealing shroud intracoelomic cavity, and the internal diameter of the block seal groove is more than position
In the internal diameter of the internal chamber wall of its both sides.
7. low pressure cable sealing device according to claim 6, it is characterised in that：The two ends of the sealing body are all provided with
There is sealing fit portion, sealing fit portion is provided with the fitted seal groove for being used for installing sealing ring, the internal diameter of the fitted seal groove
More than the internal diameter of the internal chamber wall close to fitted seal groove, the fitted seal groove and the internal chamber wall formation rank close to fitted seal groove
Terraced hole.
8. low pressure cable sealing device according to claim 7, it is characterised in that：Sealing fit portion described in two it is relative
Side provided with coordinate the conical surface, the interface of low pressure casing after being docked with the sealing fit portion of sealing body it is tight by clip
Gu, the cooperation conical surface is used for and the spacing cooperation of clip inwall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510878511.8A CN105305327B (en) | 2015-12-04 | 2015-12-04 | A kind of low pressure cable sealing device and its manufacture method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510878511.8A CN105305327B (en) | 2015-12-04 | 2015-12-04 | A kind of low pressure cable sealing device and its manufacture method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105305327A CN105305327A (en) | 2016-02-03 |
| CN105305327B true CN105305327B (en) | 2017-10-27 |
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ID=55202265
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510878511.8A Active CN105305327B (en) | 2015-12-04 | 2015-12-04 | A kind of low pressure cable sealing device and its manufacture method |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107910829B (en) * | 2017-11-13 | 2020-03-27 | 中国航空工业集团公司洛阳电光设备研究所 | Assembly method of detachable temperature-height cable sealing device capable of being recycled |
| CN107706880A (en) * | 2017-11-24 | 2018-02-16 | 湖州三井低温设备有限公司 | A kind of cryocable outlet joint |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NZ222263A (en) * | 1986-10-24 | 1990-10-26 | Fujikura Ltd | Heat-conducting insert melts block to seal cable branch junction |
| JPH07245030A (en) * | 1994-03-07 | 1995-09-19 | Sumitomo Wiring Syst Ltd | Grommet |
| EP2330707A1 (en) * | 2009-12-03 | 2011-06-08 | Tyco Electronics Raychem BVBA | Gel sealing device |
| CN203056532U (en) * | 2013-02-24 | 2013-07-10 | 衢州市易凡设计有限公司 | Cable bushing |
| CN203674678U (en) * | 2013-10-29 | 2014-06-25 | 台州凌霄泵业有限公司 | Twin-cable joint sealing structure |
| CN103595006A (en) * | 2013-11-29 | 2014-02-19 | 哈尔滨东方报警设备开发有限公司 | Pouring sealant plug |
| CN104901259B (en) * | 2015-06-02 | 2017-10-03 | 张维秀 | A kind of cable sealing device and cable seal method |
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| CN105305327A (en) | 2016-02-03 |
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