CN105931770B - Low-pass insulation sleeve and preparation method thereof - Google Patents
Low-pass insulation sleeve and preparation method thereof Download PDFInfo
- Publication number
- CN105931770B CN105931770B CN201610277418.6A CN201610277418A CN105931770B CN 105931770 B CN105931770 B CN 105931770B CN 201610277418 A CN201610277418 A CN 201610277418A CN 105931770 B CN105931770 B CN 105931770B
- Authority
- CN
- China
- Prior art keywords
- low pass
- insulating sleeve
- gland
- push rod
- pass insulating
- 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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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B17/00—Insulators or insulating bodies characterised by their form
- H01B17/56—Insulating bodies
- H01B17/58—Tubes, sleeves, beads, or bobbins through which the conductor passes
- H01B17/583—Grommets; Bushings
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B19/00—Apparatus or processes specially adapted for manufacturing insulators or insulating bodies
Landscapes
- Insulating Bodies (AREA)
Abstract
The invention relates to a low-pass insulation sleeve and a preparation method thereof, and belongs to the technical field of microwave communication equipment. By use of a good plasticity feature of such engineering plastics as polytetrafluoroethylene, nylon and the like, a ring of grooves are at least arranged at the outer surface of a low-pass insulation sleeve by use of an extrusion technology, the low-pass insulation sleeve with the grooves is enabled to closely cooperate with a low pass, the low-pass insulation sleeve does not generate displacement in a filter cavity easily, the influence exerted by the easily sliding low-pass insulation sleeve on an echo index of a product is reduced, and the stability of an electrical index and the overall performance of a filter are enhanced. Besides, the manufacturing process is simple, the adaption scope is wide, and the method is applied to preparation of low-pass insulation sleeves of various models so as to be adapted to demands of different filter products.
Description
Technical field
The present invention relates to a kind of low pass insulating sleeve and preparation method thereof, belongs to microwave telecommunication devices technical field.
Background technology
Insulating sleeve in existing filter low pass uses polytetrafluoroethylmaterial material, also, insulating sleeve and low pass
Be combined into gap cooperation.As polytetrafluoroethylmaterial material has good plasticity, so as to cause insulating sleeve processing when it
Endoporus machining dimension be difficult ensure, and then cause insulating sleeve load low pass after be also easy to produce position in filter cavity content
Move, so the indices of radar of product is had a significant impact, and increased the unstability of structure, electrical specifications, so as to affect
To the overall performance of wave filter.
The content of the invention
For above-mentioned existing problems, it is an object of the invention to provide one kind can be fitted close with low pass, it is not easy in filter
Insulating sleeve of displacement and preparation method thereof is produced in ripple device cavity.
For achieving the above object, the technical scheme is that：
A kind of low pass insulating sleeve, circumferentially at least provided with a circle groove in the low pass insulating sleeve outside wall surface,
The depth of groove is 0.2~0.4mm, and the spacing of the end face of the central point to low pass insulating sleeve of groove is 14.3~15mm.
Described low pass insulating sleeve outside wall surface upper groove is 2 circles.
The material of described low pass insulating sleeve is politef or the one kind in nylon.
The preparation method is comprised the following steps：
A. the preparation of mould：
Mould includes push rod, base, positioning sleeve, gland, rubber squeeze head, wherein, gland be in hollow cylinder, gland one end
It is fixed on the end face of base, positioning sleeve is in hollow cylinder, positioning sleeve is movable to be sleeved in gland, and rubber squeeze head is in a ring
Shape, push rod t shape, one end are provided with nib, and one end activity for being provided with nib is inserted in gland, the internal diameter of nib and positioning
Set internal diameter is consistent, and the spacing between the T-shaped end face and the end face of gland of push rod is 1.5mm, rubber squeeze head be arranged on positioning sleeve and
Between push rod.
B. the preparation of low pass insulating sleeve：
1) first positioning sleeve is loaded in gland, then push rod is sleeved on one end of low pass insulating sleeve, by rubber squeeze head set
The other end of low pass insulating sleeve is mounted in, then the one end for being set with the low pass insulating sleeve of rubber squeeze head is put in gland.
2) applying uniform pressure to push rod makes push rod T-shaped end face fit with gland end face, and rubber squeeze head is under pressure
Radially even inflation, the rubber squeeze head after expansion formed in low pass insulating sleeve outside wall surface a circle depth be 0.2~
0.4mm grooves.
3) low pass insulating sleeve is taken out from rubber squeeze head, exchange the direction of low pass insulating sleeve, push rod is sleeved on low
Rubber squeeze head is sleeved on the other end of low pass insulating sleeve, then will be set with by fluted one end of outside wall surface of logical insulating sleeve
One end of the low pass insulating sleeve of rubber squeeze head is put in gland；Applying uniform pressure to push rod makes push rod T-shaped end face and gland
End face is fitted, rubber squeeze head radially even inflation under pressure, and the rubber squeeze head after expansion is in low pass insulating sleeve
It is 0.2~0.4mm grooves that another circle depth is formed in outside wall surface.
As a result of above technical scheme, the method have the characteristics that：
Using the characteristic of the good plasticity of the engineering plastics such as politef, nylon, insulated in low pass using extrusion process
The outer surface of sleeve forms groove, makes to be fitted close with low pass with reeded low pass insulating sleeve so that low pass insulating sleeve
Be not easy displacement to be produced in filter cavity body, reduce shadow of the easy low pass insulating sleeve for sliding to the indices of radar of product
Ring, enhance the overall performance of the stability and wave filter of electrical specifications.In addition, manufacturing process of the present invention is simple, the scope of application
Extensively, the preparation of the low pass insulating sleeve of various models is applicable to, to adapt to the demand of different wave filter products.
Description of the drawings
Fig. 1 is the structural representation of insulating sleeve in the present invention.
Structural representations of the Fig. 2 for inventive die.
Specific embodiment
Below in conjunction with accompanying drawing, the present invention is described in further detail：
See accompanying drawing, a kind of low pass insulating sleeve, circumferentially at least provided with 1 outside wall surface of low pass insulating sleeve
Circle groove 2, the depth of groove 2 is 0.2~0.4mm, and the spacing of the end face of the central point to low pass insulating sleeve 1 of groove 2 is
14.3~15mm, groove 2 are used to be brought into close contact low pass, prevent insulating sleeve 1 from producing position in filter cavity body after loading low pass
Move.Described 1 outside wall surface upper groove 2 of low pass insulating sleeve is two circles.The material of described low pass insulating sleeve 1 is polytetrafluoroethyl-ne
The engineering material with good plasticity such as alkene or nylon.
The preparation of low pass insulating sleeve, the preparation are comprised the following steps：
A. the preparation of mould：
Mould includes push rod 3, base 7, positioning sleeve 6, gland 4, rubber squeeze head 5, wherein, gland 4 is in hollow cylinder, is pressed
Cover 4 one end to be fixed on the end face of base 7, positioning sleeve 6 is in hollow cylinder, 6 activity of positioning sleeve is sleeved in gland 4, rubber
The shape in a ring of glue laminated 5,3 t shape of push rod, one end are provided with nib, and one end activity for being provided with nib is inserted in gland 4,
The internal diameter of nib is consistent with 6 internal diameter of positioning sleeve, and the nib and 4 endoporus resulting length of positioning sleeve of push rod 3 are 54.5mm, the T of push rod 3
Spacing between the end face of shape end face and gland 4 is 1.5mm, and rubber squeeze head 5 is arranged between positioning sleeve 6 and push rod 3.
B. the preparation of low pass insulating sleeve 1：
1) first positioning sleeve 6 is loaded in gland 4, then push rod 3 is sleeved on one end of low pass insulating sleeve 1, by rubber pressure
5 other ends for being sleeved on low pass insulating sleeve 1, then the one end for being set with the low pass insulating sleeve 1 of rubber squeeze head 5 is put into into pressure
In set 4, it is slidably matched between the nib of low pass insulating sleeve 1 and positioning sleeve 6 and push rod 3, the two ends difference of low pass insulating sleeve 1
It coincide with the bottom surface of the end face and nib of base 7.
2) applying uniform pressure to push rod 3 makes the T-shaped end face of push rod 3 fit with 4 end face of gland, and rubber squeeze head 5 is in pressure
Effect lower edge its radially uniform expansion, the rubber squeeze head 5 after expansion form one in 1 outside wall surface of low pass insulating sleeve and enclose depth and be
0.2~0.4mm grooves 2；
3) low pass insulating sleeve 1 is taken out from rubber squeeze head 5, exchange the direction of low pass insulating sleeve 1, push rod 3 is set with
In fluted 2 one end of the outside wall surface of low pass insulating sleeve 1, rubber squeeze head 5 is sleeved on into the other end of low pass insulating sleeve 1, then
The one end for being set with the low pass insulating sleeve 1 of rubber squeeze head 5 is put in gland 4；Applying uniform pressure to push rod 3 makes push rod 3
T-shaped end face fit with 4 end face of gland, the radially even inflation under pressure of rubber squeeze head 5, the rubber pressure after expansion
5 another circle depth is formed in 1 outside wall surface of low pass insulating sleeve is 0.2~0.4mm grooves 2.
Claims (1)
1. the preparation method of low pass insulating sleeve, it is characterised in that：The preparation method is comprised the following steps：
A. the preparation of mould：
Mould includes push rod (3), base (7), positioning sleeve (6), gland (4), rubber squeeze head (5), wherein, gland (4) is in hollow
Cylinder, gland (4) one end are fixed on the end face of base (7), positioning sleeve (6) in hollow cylinder, positioning sleeve (6) activity
It is sleeved in gland (4), rubber squeeze head (5) shape in a ring, push rod (3) t shape, one end are provided with nib, are provided with the one of nib
End is movable to be inserted in gland (4), and the internal diameter of nib is consistent with positioning sleeve (6) internal diameter, the T-shaped end face and gland of push rod (3)
(4) the spacing between end face is 1.5mm, and rubber squeeze head (5) is arranged between positioning sleeve (6) and push rod (3)；
B. the preparation of low pass insulating sleeve (1)：
1) first positioning sleeve (6) is loaded in gland (4), then push rod (3) is sleeved on one end of low pass insulating sleeve (1), by rubber
Glue laminated head (5) is sleeved on the other end of low pass insulating sleeve (1), then the low pass insulating sleeve (1) that will be set with rubber squeeze head (5)
One end be put in gland (4)；
2) applying uniform pressure to push rod (3) makes push rod (3) T-shaped end face fit with gland (4) end face, and rubber squeeze head (5) is in pressure
Power effect lower edge its radially uniform expansion, the rubber squeeze head (5) after expansion form one in low pass insulating sleeve (1) outside wall surface and enclose
Depth is 0.2~0.4mm grooves (2)；
3) low pass insulating sleeve (1) is taken out from rubber squeeze head (5), exchange the direction of low pass insulating sleeve (1), by push rod (3)
Fluted (2) one end of outside wall surface of low pass insulating sleeve (1) is sleeved on, rubber squeeze head (5) is sleeved on into low pass insulating sleeve (1)
The other end, then the one end for being set with the low pass insulating sleeve (1) of rubber squeeze head (5) is put in gland (4)；To push rod (3)
Applying uniform pressure makes push rod (3) T-shaped end face fit with gland (4) end face, and rubber squeeze head (5) is under pressure radially
Even inflation, the rubber squeeze head (5) after expansion formed in low pass insulating sleeve (1) outside wall surface it is another circle depth be 0.2~
0.4mm grooves (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610277418.6A CN105931770B (en) | 2016-04-28 | 2016-04-28 | Low-pass insulation sleeve and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610277418.6A CN105931770B (en) | 2016-04-28 | 2016-04-28 | Low-pass insulation sleeve and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105931770A CN105931770A (en) | 2016-09-07 |
| CN105931770B true CN105931770B (en) | 2017-05-17 |
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ID=56837864
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610277418.6A Expired - Fee Related CN105931770B (en) | 2016-04-28 | 2016-04-28 | Low-pass insulation sleeve and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105931770B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20020027891A (en) * | 2000-10-06 | 2002-04-15 | 송홍준 | Method of forming and it line post insulator |
| CN101840788A (en) * | 2009-01-30 | 2010-09-22 | 东芝照明技术株式会社 | Electrolytic capacitor and electric equipment |
| CN102319790A (en) * | 2011-07-16 | 2012-01-18 | 陈国强 | A kind of processing method of valve body |
| CN202258985U (en) * | 2011-08-31 | 2012-05-30 | 中国西电电气股份有限公司 | Insulating cylinder |
| CN103178318A (en) * | 2011-12-20 | 2013-06-26 | 特勒格特纳卡尔·格特纳有限公司 | Coaxial electrical transmission element |
-
2016
- 2016-04-28 CN CN201610277418.6A patent/CN105931770B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20020027891A (en) * | 2000-10-06 | 2002-04-15 | 송홍준 | Method of forming and it line post insulator |
| CN101840788A (en) * | 2009-01-30 | 2010-09-22 | 东芝照明技术株式会社 | Electrolytic capacitor and electric equipment |
| CN102319790A (en) * | 2011-07-16 | 2012-01-18 | 陈国强 | A kind of processing method of valve body |
| CN202258985U (en) * | 2011-08-31 | 2012-05-30 | 中国西电电气股份有限公司 | Insulating cylinder |
| CN103178318A (en) * | 2011-12-20 | 2013-06-26 | 特勒格特纳卡尔·格特纳有限公司 | Coaxial electrical transmission element |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105931770A (en) | 2016-09-07 |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170517 Termination date: 20190428 |
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