CN202308228U - Locking nut and tuning apparatus - Google Patents
Locking nut and tuning apparatus Download PDFInfo
- Publication number
- CN202308228U CN202308228U CN 201120426547 CN201120426547U CN202308228U CN 202308228 U CN202308228 U CN 202308228U CN 201120426547 CN201120426547 CN 201120426547 CN 201120426547 U CN201120426547 U CN 201120426547U CN 202308228 U CN202308228 U CN 202308228U
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- Prior art keywords
- locking nut
- cover plate
- dielectric filter
- rotary body
- flange
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Abstract
The utility model relates to fittings of a dielectric filter, in particular to a locking nut and a tuning apparatus, wherein the locking nut comprises a rotation body, a flange located at one end of the rotation body, and an axial through hole passing through the locking nut, the outer surface of the rotation body is provided with an outer thread, and inside the axial through hole there is provided an inner thread. When the locking nut is used for the dielectric filter, the rotation body of the locking nut is screwed with the cover plate unit of the dielectric filter, the flange abuts against the lower cover plate of the dielectric filter to enable the upper and lower cover plates of the dielectric filter to closely contact with each other, and the tuning screw of the dielectric filter is arranged to pass through the axial through hole and extend into a cavity. Therefore, the locking nut and tuning apparatus are better in locking effect, can enable the cover plate unit of the dielectric filter and the cavity to closely connect with each other, enable the mutual tuning performance index and the insertion loss index of the dielectric filter to be increased, and are stable and reliable in performance.
Description
Technical field
The utility model relates to the accessory of dielectric filter, relates in particular to a kind of locking nut and tuner.
Background technology
In traditional dielectric filter structure, an end of dielectric resonator contacts with cavity, and the other end contacts with cover plate.Wherein, cover plate is made up of two cover plates up and down again, and lower cover is the aluminum component cover plate of routine, and upper cover plate is the extraordinary thin cover plate of rigidity, between two cover plates, adorns an elastic structure.Connect through screw between cover plate and the cavity, screw is pressed on the upper cover plate, and pressure finally evenly is delivered to pressure on the dielectric resonator through upper cover plate, elastic structure and lower cover.But because elastic structure and the interference fit between the cover plate up and down, upper cover plate is upspring after receiving the elastic force that elastic structure produces easily, makes can not closely be connected between cover plate and the cavity, thereby causes the intermodulation performance and the Insertion Loss poor-performing of dielectric filter.
Can know that to sum up existing dielectric filter obviously exists inconvenience and defective, so be necessary to improve on reality is used.
The utility model content
In view of this; The utility model provides a kind of locking nut and tuner, and it has better sealed effect, closely is connected between the cover plate unit that can make dielectric filter and the cavity; Improved the intermodulation performance index and the Insertion Loss performance index of dielectric filter, stable and reliable for performance.
The utility model embodiment solves the problems of the technologies described above a technical scheme of being taked and provides a kind of locking nut; Be used for dielectric filter; Locking nut comprises rotary body, is positioned at the flange of rotary body one end and the axially extending bore that runs through locking nut; The outer surface of said rotary body is provided with external screw thread, is provided with internal thread in the said axially extending bore.
According to the locking nut of the utility model, the direction of rotation of said external screw thread and said internal thread is opposite.
According to the locking nut of the utility model, said external screw thread is a fine thread.
According to the locking nut of the utility model, said flange is circle or polygon.
According to the locking nut of the utility model, said flange is provided with the flat recess that is used to rotate said locking nut.
The present invention is corresponding to provide a kind of tuner; Said tuner comprises locking nut and the tuning screw rod that cooperates with said locking nut; Said locking nut comprises rotary body, is positioned at the flange of rotary body one end and the axially extending bore that runs through locking nut, and the outer surface of said rotary body is provided with external screw thread, is provided with internal thread in the said axially extending bore; Said tuning screw rod is arranged in said axially extending bore, and said tuning screw rod and said locking nut are spirally connected.
The locking nut of the utility model comprises rotary body, is positioned at the flange of rotary body one end and the axially extending bore that runs through locking nut, and the outer surface of rotary body is provided with external screw thread, is provided with internal thread in the said axially extending bore.When locking nut was used for dielectric filter, it was arranged in the cover plate unit of dielectric filter, the lower cover butt of the flange of this locking nut and cover plate unit, and rotary body screws togather with the cover plate unit upper cover plate is closely contacted with lower cover.Locking nut can tightly lock together upper cover plate and lower cover; Elastic structure between upper cover plate and the lower cover can not be upspring upper cover plate; Thereby guaranteed tight connection the between upper cover plate and the lower cover; Also make combine between cover plate unit and the cavity more tight, thereby make the intermodulation performance index of dielectric filter and Insertion Loss performance index better.Whereby, the utlity model has better sealed effect, closely be connected between the cover plate unit that can make dielectric filter and the cavity, and improved the intermodulation performance index and the Insertion Loss performance index of dielectric filter, stable and reliable for performance.
Description of drawings
Fig. 1 is the three-dimensional view of a kind of locking nut of the utility model;
Fig. 2 is used for the cross sectional view of dielectric filter for a kind of locking nut of the utility model.
Embodiment
For the purpose, technical scheme and the advantage that make the utility model is clearer, combine accompanying drawing and embodiment once, the utility model is further elaborated.Should be appreciated that specific embodiment described herein only in order to explanation the utility model, and be not used in qualification the utility model.
As depicted in figs. 1 and 2, a kind of locking nut 50 of the utility model is used for dielectric filter 100.Dielectric filter 100 comprises: cavity 10, cover plate unit 20, mechanical tuning device 30 and dielectric resonator 40, locking nut 50 is arranged in cover plate unit 20.
The axially extending bore 53 that locking nut 50 comprises rotary body 51, is positioned at the flange 52 of rotary body 51 lower ends and runs through locking nut 50; Flange 52 and lower cover 22 butts; And screwing togather between rotary body 51 and the cover plate unit 20 makes upper cover plate 21 closely contact with lower cover 22; The outer surface of rotary body 51 is provided with external screw thread, and cover plate unit 20 is provided with the screw thread that matches with the external screw thread of rotary body 51, and rotary body 51 is spirally connected through this external screw thread and cover plate unit 20; Be provided with internal thread in the axially extending bore 53, tuning screw rod 31 is provided with the screw thread that matches with this internal thread, and axially extending bore 53 is spirally connected through this internal thread and tuning screw rod 31.Tuning screw rod 31 is arranged in axially extending bore 53 and stretches in the cavity 10, and tuning screw rod 31 is spirally connected with axially extending bore 53.
Wherein, The direction of rotation of the internal thread in the external screw thread of rotary body 51 outer surfaces and the axially extending bore 53 is opposite; With the internal thread is that right-handed thread, external screw thread are that left hand thread is example, goes in the process of axially extending bore 53 in tuning screw rod 31 dextrorotation, because the direction of rotation of external screw thread and internal thread is opposite; Lock is tight more more between that make the rotary body 51 and cover plate unit 20, has avoided rotary body 51 from cover plate unit 20, to screw out.Preferably, external screw thread is set to fine thread, and fine thread can make and combine more accurately between rotary body 51 and the cover plate unit 20, causes the loosening of rotary body 51 and cover plate unit 20 when avoiding tuning screw rod 31 from rotary body 51, to screw out.Obviously, the internal thread of axially extending bore 53 also can be set to fine thread.
Wherein, have the slit between flange 52 and the dielectric resonator 40,, can't produce the resonance frequency of requirement if seamless then resonance frequency changes greatly, produced resonance frequency also can't with resonance point be tuned in the passband, make tuning screw rod 31 not have tunning effect.
In the installation process of dielectric filter 100, at first upper cover plate 21, lower cover 22 and elastic structure 23 are combined and installed together; Then locking nut 50 is screwed in the cover plate unit 20 flange 52 and lower cover 22 butts; Again cover plate unit 20 is passed through screw on cavity 10; Again tuning screw rod 31 is screwed in the cavity 10 by axially extending bore 53 at last, and tuning screw rod 31 is fixed through tuning nut 32.
The locking nut 50 of the utility model can tightly lock together upper cover plate 21 and lower cover 22; Elastic structure 23 between upper cover plate 21 and the lower cover 22 can not be upspring upper cover plate 21; Thereby guaranteed tight connection the between upper cover plate 21 and the lower cover 22; Also make combine between cover plate unit 20 and the cavity 10 more tight, thereby make the intermodulation performance index of dielectric filter 100 and Insertion Loss performance index better.Whereby, closely be connected between the cover plate unit 20 that the utility model can make dielectric filter 100 and chamber 10 bodies, improved the intermodulation performance index and the Insertion Loss performance index of dielectric filter 100, stable and reliable for performance.
Preferably, the gauge of upper cover plate 21 is big than the gauge of lower cover 22, thereby makes upper cover plate 21 be difficult for being upspring by elastic structure 23.
As shown in Figure 1, the flange 52 of locking nut 50 is preferably circle, and it can increase the contact area between flange 52 and the lower cover 22, thereby makes the locking effect of locking nut 50 better.Certainly, flange 52 also can be polygon.Flange 52 is provided with the flat recess 521 that is used for rotational lock nut 51, is convenient to locking nut 51 and screws in cover plate unit 20.
Preferably, the axial length of rotary body 51 is less than the thickness of cover plate unit 20.Owing to the thickness of cover plate unit 20 owing to possibly there is certain error in reasons such as processing; If the axial length of rotary body 51 equates with the thickness of cover plate unit 20 fully; May make rotary body 51 exceed cover plate unit 20 when locking nut 50 is installed, make tuning nut 32 and external teeth serrated lock washer can't be pressed on cover plate unit 20.
The present invention is corresponding to provide a kind of tuner; The tuning screw rod that tuner comprises locking nut and cooperates with locking nut; Locking nut comprises rotary body, is positioned at the flange of rotary body one end and the axially extending bore that runs through locking nut, and the outer surface of rotary body is provided with external screw thread, is provided with internal thread in the axially extending bore; Tuning screw rod is arranged in axially extending bore, and tuning screw rod and locking nut are spirally connected.The concrete fit structure of locking nut and tuning screw rod has been done detailed description in preamble, so repeat no more at this.
In sum, the locking nut of the utility model comprises rotary body, is positioned at the flange of rotary body one end and the axially extending bore that runs through locking nut, and the outer surface of rotary body is provided with external screw thread, is provided with internal thread in the said axially extending bore.When locking nut was used for dielectric filter, it was arranged in the cover plate unit of dielectric filter, the lower cover butt of the flange of this locking nut and cover plate unit, and rotary body screws togather with the cover plate unit upper cover plate is closely contacted with lower cover.Locking nut can tightly lock together upper cover plate and lower cover; Elastic structure between upper cover plate and the lower cover can not be upspring upper cover plate; Thereby guaranteed tight connection the between upper cover plate and the lower cover; Also make combine between cover plate unit and the cavity more tight, thereby make the intermodulation performance index of dielectric filter and Insertion Loss performance index better.Whereby, the utlity model has better sealed effect, closely be connected between the cover plate unit that can make dielectric filter and the cavity, and improved the intermodulation performance index and the Insertion Loss performance index of dielectric filter, stable and reliable for performance.
Certainly; The utility model also can have other various embodiments; Under the situation that does not deviate from the utility model spirit and essence thereof; Those of ordinary skill in the art work as can make various corresponding changes and distortion according to the utility model, but these corresponding changes and distortion all should belong to the protection range of the appended claim of the utility model.
Claims (10)
1. a locking nut is characterized in that, comprises rotary body, is positioned at the flange of rotary body one end and the axially extending bore that runs through locking nut, and the outer surface of said rotary body is provided with external screw thread, is provided with internal thread in the said axially extending bore.
2. locking nut according to claim 1 is characterized in that the direction of rotation of said external screw thread and said internal thread is opposite.
3. locking nut according to claim 1 is characterized in that, said external screw thread is a fine thread.
4. locking nut according to claim 1 is characterized in that, said flange is circle or polygon.
5. locking nut according to claim 1 is characterized in that said flange is provided with the flat recess that is used to rotate said locking nut.
6. tuner; It is characterized in that said tuner comprises locking nut and the tuning screw rod that cooperates with said locking nut, said locking nut comprises rotary body, is positioned at the flange of said rotary body one end and the axially extending bore that runs through locking nut; The outer surface of said rotary body is provided with external screw thread; Be provided with internal thread in the said axially extending bore, said tuning screw rod is arranged in said axially extending bore, and said tuning screw rod and said locking nut are spirally connected.
7. tuner according to claim 6 is characterized in that the direction of rotation of said external screw thread and said internal thread is opposite.
8. tuner according to claim 6 is characterized in that, said external screw thread is a fine thread.
9. tuner according to claim 6 is characterized in that, said flange is circle or polygon.
10. tuner according to claim 6 is characterized in that said flange is provided with the flat recess that is used to rotate said locking nut.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120426547 CN202308228U (en) | 2011-10-31 | 2011-10-31 | Locking nut and tuning apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120426547 CN202308228U (en) | 2011-10-31 | 2011-10-31 | Locking nut and tuning apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202308228U true CN202308228U (en) | 2012-07-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120426547 Expired - Fee Related CN202308228U (en) | 2011-10-31 | 2011-10-31 | Locking nut and tuning apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202308228U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102509819A (en) * | 2011-10-31 | 2012-06-20 | 深圳市大富科技股份有限公司 | Dielectric filter, locking nut, tuning device and communication radio-frequency apparatus |
| CN104838537A (en) * | 2012-10-25 | 2015-08-12 | 凯瑟雷恩工厂两合公司 | Tunable high frequency filter |
| CN105927650A (en) * | 2016-06-29 | 2016-09-07 | 王辉 | Tuning self-locking screw rod for radio frequency device and manufacture method thereof |
| CN106058396A (en) * | 2015-04-03 | 2016-10-26 | 株式会社This | Tuner to tune resonant frequency of dielectric resonator filter |
| CN107615576A (en) * | 2015-12-30 | 2018-01-19 | 深圳市大富科技股份有限公司 | Cavity body filter, cover plate and its spiral tooth socket that presses |
| CN110177439A (en) * | 2019-05-30 | 2019-08-27 | 金枫林电器（无锡）有限公司 | A kind of control panel rotation locking mechanism |
-
2011
- 2011-10-31 CN CN 201120426547 patent/CN202308228U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102509819A (en) * | 2011-10-31 | 2012-06-20 | 深圳市大富科技股份有限公司 | Dielectric filter, locking nut, tuning device and communication radio-frequency apparatus |
| CN104838537A (en) * | 2012-10-25 | 2015-08-12 | 凯瑟雷恩工厂两合公司 | Tunable high frequency filter |
| CN104838537B (en) * | 2012-10-25 | 2017-09-26 | 凯瑟雷恩工厂两合公司 | Tunable high frequency filter |
| CN106058396A (en) * | 2015-04-03 | 2016-10-26 | 株式会社This | Tuner to tune resonant frequency of dielectric resonator filter |
| CN106058396B (en) * | 2015-04-03 | 2017-07-28 | 株式会社This | The tuner being tuned for the resonant frequency to dielectric resonator filter |
| CN107615576A (en) * | 2015-12-30 | 2018-01-19 | 深圳市大富科技股份有限公司 | Cavity body filter, cover plate and its spiral tooth socket that presses |
| CN105927650A (en) * | 2016-06-29 | 2016-09-07 | 王辉 | Tuning self-locking screw rod for radio frequency device and manufacture method thereof |
| CN110177439A (en) * | 2019-05-30 | 2019-08-27 | 金枫林电器（无锡）有限公司 | A kind of control panel rotation locking mechanism |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120704 Termination date: 20161031 |