CN204387307U - A kind of gas type ellipse-rectangle conversion waveguide hermetic seal flange - Google Patents
A kind of gas type ellipse-rectangle conversion waveguide hermetic seal flange Download PDFInfo
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- CN204387307U CN204387307U CN201420788208.XU CN201420788208U CN204387307U CN 204387307 U CN204387307 U CN 204387307U CN 201420788208 U CN201420788208 U CN 201420788208U CN 204387307 U CN204387307 U CN 204387307U
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Abstract
The utility model provides a kind of gas type ellipse-rectangle conversion waveguide hermetic seal flange, comprise oval flange, oval flange fixed block, seal ring at tail part and end-face seal ring, center hole is offered in described oval flange, described center hole comprises the first hole section of ovalize, be connected with the first hole section and in elliptic conic shape the second hole section and be connected and the 3rd rounded hole section with described second hole section, the circumferential size of described 3rd hole section is greater than the circumferential size that described second hole section is adjacent one end, in described second hole section, the seal ring at tail part that can be set in outside elliptic flexible waveguide is installed, in described 3rd hole section, oval flange fixed block is installed, described oval flange fixed block is fixed on oval flange, described oval flange fixed block offers elliptical aperture, described oval flange offers groove on the end face of the 3rd hole section, end-face seal ring is provided with in groove.Adopt this hermetic seal flange, easy for installation, good sealing can be obtained.
Description
Technical field
The utility model relates to hermetic seal flange field, specifically, relates to a kind of gas type ellipse-rectangle conversion waveguide hermetic seal flange.
Background technique
In recent years, along with the fast development of microwave communication techniques, elliptic flexible waveguide has been widely used in the fields such as radar, satellite communication, digital microwave relay communication, radio and television MT Microwave Transmission, Multichannel Microwave Distribution System as transmission feeder.Elliptic flexible waveguide decay is low, voltage standing wave ratio is little, tightness good, cost is low, and has certain pull resistance and ductility, can produced in lengths greatly, convenient transport and installing, the transmission of applicable remote microwave signal.Because microwave antenna and transmitter interface mostly are rectangular waveguide interface (meeting GB11449.2-1989 to require), flange is therefore needed to be connected elliptic flexible waveguide and rectangular waveguide with ellipse-rectangle conversion waveguide, the gas tightness in whole system will be ensured simultaneously.
The flange that current supporting gas type ellipse-rectangle conversion waveguide uses mainly relies on two places to realize hermetic seal, and one is install seal ring in the seal groove 1 of flange plate end face; Two is that a large amount of embedding sealer, until overflow flange, is then wound around adhesive waterproof tape in the plastic squeeze hole 2 of flange side.There is several large shortcoming in this sealing means: 1, plastic squeeze amount is comparatively random; 2, engineering uses inconvenient; 3, hermetic seal reliability is not high.
Model utility content
The technical problems to be solved in the utility model is, for the deficiency existing for existing hermetic seal flange, provide a kind of gas type ellipse-rectangle conversion waveguide hermetic seal flange, it is easy to connect, and good airproof performance.
For solving the problems of the technologies described above, the technical solution adopted in the utility model is: a kind of gas type ellipse-rectangle conversion waveguide hermetic seal flange, it comprises oval flange, oval flange fixed block, seal ring at tail part and end-face seal ring, center hole is offered in described oval flange, described center hole comprises the first hole section of ovalize, be connected with the first hole section and in elliptic conic shape the second hole section and be connected and the 3rd rounded hole section with described second hole section, the circumferential size of described 3rd hole section is greater than the circumferential size that described second hole section is adjacent one end, in described second hole section, the seal ring at tail part that can be set in outside elliptic flexible waveguide is installed, in described 3rd hole section, oval flange fixed block is installed, described oval flange fixed block is fixed on oval flange, described oval flange fixed block offers elliptical aperture, described oval flange offers groove on the end face of the 3rd hole section, end-face seal ring is provided with in described groove.
As optimal way: described oval flange fixed block is fixed on described oval flange by screw.
As optimal way: described end-face seal ring is O shape circle.
Implement gas type of the present utility model ellipse-rectangle conversion waveguide hermetic seal flange, there is following beneficial effect: during use, be set in elliptic flexible waveguide by seal ring at tail part, it is made to be stuck on the ripple of elliptic flexible waveguide, this hermetic seal flange of the present utility model, easy for installation, be beneficial to through engineering approaches application, higher hermetic seal reliability can also be obtained simultaneously.In addition, end-face seal ring, can realize end face of flange and ellipse-rectangle and change hermetic seal between waveguide.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is described in further detail, in accompanying drawing:
Fig. 1 is in prior art, the perspective view of the hermetic seal flange that gas type ellipse-rectangle conversion waveguide uses;
Fig. 2 is the generalized section of Fig. 1;
Fig. 3 is the decomposing schematic representation of gas type of the present utility model ellipse-rectangle conversion waveguide hermetic seal flange;
Fig. 4 is the generalized section of gas type of the present utility model ellipse-rectangle conversion waveguide hermetic seal flange;
Fig. 5 is the structural representation of oval flange in Fig. 3;
Fig. 6 is the structural representation of seal ring at tail part in Fig. 3;
Fig. 7 is the structural representation of oval flange fixed block in Fig. 3;
Fig. 8 is the connection diagram that this hermetic seal flange of the present utility model and gas type ellipse-rectangle change waveguide.
Embodiment
In order to make the purpose of this utility model, technological scheme and advantage clearly understand, below in conjunction with embodiment and accompanying drawing, the utility model is further described.
See Fig. 3, the utility model discloses a kind of gas type ellipse-rectangle conversion waveguide hermetic seal flange, it comprises oval flange 3, oval flange fixed block 4, seal ring at tail part 5 and end-face seal ring 6, one end of oval flange 3 can be connected with elliptic flexible waveguide, and the other end can be changed waveguide with gas type ellipse-rectangle and be connected.
See Fig. 4, Fig. 5, offer center hole in oval flange 3, center hole comprise ovalize the first hole section 301, to be connected with the first hole section 301 and the second hole section 302 in elliptic conic shape and being connected with the second hole section 302 and the 3rd rounded hole section 303.Namely parallel with the bottom surface of this taper cross section of described elliptic conic shape is the taper of oval cross section.As shown in Figure 4, first hole section 301 is arranged in figure left side, the second hole section 302 is positioned at neutral position, and the 3rd hole section 303 is positioned at right positions, and the second hole section 302 is connected with the first hole section 301, and the second hole section 302 extends towards the direction of the 3rd hole section 303, and its circumferential size expands gradually.The circumferential size of the 3rd hole section 303 is greater than the circumferential size that the second hole section 302 is adjacent one end, namely the circumferential size of the right-hand member of the second hole section 302, to install oval flange fixed block 4 in the 3rd hole section 303.
See Fig. 3, Fig. 4 and Fig. 6, Fig. 7, be provided with the seal ring at tail part 5 that can be set in outside elliptic flexible waveguide in the second hole section 302, this seal ring at tail part 5 can carry out axial limiting by oval flange fixed block 4.As shown in Figure 6, inner ring 501 is set to the shape of the outer ripple of elliptic flexible waveguide by this seal ring at tail part 5, make on its ripple that can be stuck in elliptic flexible waveguide pipe, that is, its inner ring 501 is roughly corrugated, and can match with the outer ripple of elliptic flexible waveguide, thus elliptic flexible waveguide pipe is mounted in oval flange 3, realize the hermetic seal between flange afterbody and elliptic flexible waveguide.In 3rd hole section 303, oval flange fixed block 4 is installed, oval flange fixed block 4 is fixed on oval flange 3, oval flange fixed block 4 offers elliptical aperture 401, oval flange 3 offers groove (figure does not indicate) on the end face of the 3rd hole section 303, be provided with end-face seal ring 6 in groove, it can realize this gas end face of flange and ellipse-rectangle and change hermetic seal between waveguide.
As shown in Figure 4, alternatively, oval flange fixed block 4 is fixed on oval flange 3 by screw 10, and it can together play the effect of fixing elliptic flexible waveguide with oval flange 3, and realizes and ellipse-rectangle changes connection between waveguide.
End-face seal ring 6 mentioned above can be chosen as O shape circle, and its material can be silicone rubber, especially environmental protection silicone rubber.The material of seal ring at tail part 5 can be the same with the material of this end-face seal ring 6, is environmental protection silicone rubber.
In addition, oval flange 3 is environmental protection copper with the material of oval flange fixed block 4, and there is the coat of metal on its surface, to ensure the bulk strength of this hermetic seal flange.
In addition, continue as shown in Fig. 5, Fig. 6, Fig. 7, its each dimensional parameters can do following selection: A1=45mm, B1=28mm, A2=50mm, B2=33mm, A3=42mm, B3=24mm, C=40mm.Wherein, what oval flange 3 was arranged in Fig. 3 left side 31 is ellipse, it has the first hole section 301 of ovalize, A1 refers to the major axis dimension of the first hole section 301, B1 is the minor axis dimension of the first hole section 301, A2 refers to left side 31(as shown in Figure 3, forms the part of the first hole section 301) outer peripheral major axis dimension, B2 refer to the outer peripheral minor axis dimension of left side 31; Oval flange fixed block 4 has elliptical aperture 401, A3 and refers to major axis dimension, and B3 refers to minor axis dimension; C refers to the outer diameter of seal ring at tail part 5.
See Fig. 8, this hermetic seal flange 7(of the present utility model comprises oval flange 3, oval flange fixed block 4, seal ring at tail part 5, end-face seal ring 6), in use, left end can connect into elliptic flexible waveguide (not shown on figure), and right-hand member can connect gas type ellipse-rectangle conversion waveguide 8.
In the implementation case, exemplary operation air pressure when coordinating elliptic flexible waveguide to use is 55kPa.
Implement gas type of the present utility model ellipse-rectangle conversion waveguide hermetic seal flange, there is following beneficial effect: during use, be set in elliptic flexible waveguide by seal ring at tail part 5, it is made to be stuck on the ripple of elliptic flexible waveguide, this hermetic seal flange of the present utility model, easy for installation, be beneficial to through engineering approaches application, higher hermetic seal reliability can also be obtained simultaneously.
Hermetic seal flange of the present utility model, adopt tail seal coil structures to instead of traditional sealant sealing mode, it has the following advantages:
1, make installation obtain facility, substantially increase operating efficiency, the attaching time reduced to 10 minutes by original 30 minutes;
2, reduce to operator's qualification in engineer applied according to patience, utilizing worksization apply;
3, be more conducive to later maintenance and the part exchanging of elliptic flexible waveguide feeder system, substantially increase the maintainability of system;
4, avoid the tightness decline because plastic squeeze quantity not sufficient causes or lost efficacy, improve hermetic seal reliability.
More than show and describe basic principle of the present utility model and major character and advantage of the present utility model.The technician of the industry should understand; the utility model is not restricted to the described embodiments; what describe in above-described embodiment and specification just illustrates principle of the present utility model; under the prerequisite not departing from the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall within the scope of claimed the utility model.The claimed scope of the utility model is defined by appending claims and equivalent thereof.
Claims (3)
1. gas type ellipse-rectangle conversion waveguide hermetic seal flange, it is characterized in that: comprise oval flange, oval flange fixed block, seal ring at tail part and end-face seal ring, center hole is offered in described oval flange, described center hole comprises the first hole section of ovalize, be connected with the first hole section and in elliptic conic shape the second hole section and be connected and the 3rd rounded hole section with described second hole section, the circumferential size of described 3rd hole section is greater than the circumferential size that described second hole section is adjacent one end, in described second hole section, the seal ring at tail part that can be set in outside elliptic flexible waveguide is installed, in described 3rd hole section, oval flange fixed block is installed, described oval flange fixed block is fixed on oval flange, described oval flange fixed block offers elliptical aperture, described oval flange offers groove on the end face of the 3rd hole section, end-face seal ring is provided with in described groove.
2. gas type ellipse according to claim 1-rectangle conversion waveguide hermetic seal flange, is characterized in that: described oval flange fixed block is fixed on described oval flange by screw.
3. gas type ellipse according to claim 1-rectangle conversion waveguide hermetic seal flange, is characterized in that: described end-face seal ring is O shape circle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420788208.XU CN204387307U (en) | 2014-12-12 | 2014-12-12 | A kind of gas type ellipse-rectangle conversion waveguide hermetic seal flange |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420788208.XU CN204387307U (en) | 2014-12-12 | 2014-12-12 | A kind of gas type ellipse-rectangle conversion waveguide hermetic seal flange |
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| Publication Number | Publication Date |
|---|---|
| CN204387307U true CN204387307U (en) | 2015-06-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420788208.XU Active CN204387307U (en) | 2014-12-12 | 2014-12-12 | A kind of gas type ellipse-rectangle conversion waveguide hermetic seal flange |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104534090A (en) * | 2014-12-12 | 2015-04-22 | 中国电子科技集团公司第二十三研究所 | Air-seal flange for air inflation type oval-rectangular converting waveguide |
| CN106654467A (en) * | 2016-06-07 | 2017-05-10 | 上海阖煦微波技术有限公司 | Transition device, composite integrated flexible waveguide assembly and preparation method |
-
2014
- 2014-12-12 CN CN201420788208.XU patent/CN204387307U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104534090A (en) * | 2014-12-12 | 2015-04-22 | 中国电子科技集团公司第二十三研究所 | Air-seal flange for air inflation type oval-rectangular converting waveguide |
| CN106654467A (en) * | 2016-06-07 | 2017-05-10 | 上海阖煦微波技术有限公司 | Transition device, composite integrated flexible waveguide assembly and preparation method |
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