CN103390782A - Tuning screw and cavity filter with same - Google Patents
Tuning screw and cavity filter with same Download PDFInfo
- Publication number
- CN103390782A CN103390782A CN2012101398337A CN201210139833A CN103390782A CN 103390782 A CN103390782 A CN 103390782A CN 2012101398337 A CN2012101398337 A CN 2012101398337A CN 201210139833 A CN201210139833 A CN 201210139833A CN 103390782 A CN103390782 A CN 103390782A
- Authority
- CN
- China
- Prior art keywords
- tuning screw
- section
- cavity filter
- cavity
- holding
- 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.)
- Pending
Links
Images
Abstract
A tuning screw is used for regulating resonant frequency of a cavity filter and comprises a regulating part and a locking part. The regulating part is provided with a clamping part. The locking part is arranged on the clamping part in a sleeved mode and matched with the clamping part to enable the tuning screw to be locked on the cavity filter by itself. According to the cavity filter, the regulating part is locked on the cavity filter by itself through the locking part arranged on the regulating part in the sleeved mode without fixation through a nut, so assembling and using are facilitated.
Description
Technical field
The present invention relates to a kind of tuning screw, relate in particular to and a kind ofly be applied in cavity filter in order to the tuning screw of regulating frequency and use the cavity filter of this tuning screw.
Background technology
Cavity filter generally includes lid and a plurality of cavity.Be provided with one or more resonant bodies in each cavity of cavity filter.The function of each resonant body is equivalent to an electronic oscillating circuit.This oscillating circuit is the parallel oscillatory circuit that comprises inductive part and capacitive part,, by adjusting inductive part and capacitive part, can realize the resonance frequency of filter is adjusted.A kind of method relatively commonly used to the electric capacity adjustment is by traditional screw rod is goed deep into cavity, carry out with the spacing of regulating traditional screw rod and resonant body tuning, but traditional screw rod needs nutting so that traditional screw rod is fixed on lid, causes assembling and uses inconvenience.
Summary of the invention
, in view of foregoing, be necessary the tuning screw that a kind of assembling is provided and uses.
Also be necessary to provide a kind of cavity filter that uses this tuning screw.
A kind of tuning screw, the resonance frequency that is used for regulating cavity filter.This tuning screw comprises regulating part and locking part, and this regulating part is provided with the section of holding; This locking part is sheathed on this and holds in section and with this section of holding and match, so that this tuning screw self-locking is on cavity filter.
A kind of cavity filter, it comprises cavity, resonant body, lid and tuning screw, and this cavity has opening, and this resonant body is installed in this cavity, and this cover cap is located at this cavity hatch one end; On this lid to offering through hole by resonant body.This tuning screw is installed in this through hole, is used for regulating the resonance frequency of cavity filter.This tuning screw comprises regulating part and locking part, and this regulating part is provided with the section of holding.This locking part is sheathed on this and holds in section and with this section of holding and match, so that in the through hole of this tuning screw self-locking on cavity filter.
Tuning screw provided by the invention and cavity filter, lock in the regulating part of tuning screw on cavity filter certainly by sheathed locking part thereon, and need not turn nut, is not fixed, and facilitated assembling and used.
Description of drawings
Fig. 1 is the generalized section of the cavity filter of embodiment of the present invention.
Fig. 2 is the schematic perspective view of tuning screw.
Fig. 3 is the perspective exploded view of tuning screw shown in Figure 2.
The main element symbol description
| |
100 |
| |
20 |
| |
22 |
| |
40 |
| |
60 |
| Through |
62 |
| |
80 |
| Regulating |
82 |
| |
822 |
| |
8224 |
| |
8226 |
| |
84 |
| |
842 |
Following embodiment further illustrates the present invention in connection with above-mentioned accompanying drawing.
Embodiment
See also Fig. 1, the cavity filter 100 of embodiment of the present invention comprises a cavity 20, a resonant body 40, a lid 60 and a tuning screw 80.Cavity 20 has an opening 22.Resonant body 40 is arranged in cavity 20.Lid 60 is covered on the opening 22 of cavity 20 with closed cavity 20, and on lid 60, corresponding resonant body 40 connects and offers a through hole 62.Tuning screw 80 is installed in through hole 62, in order to regulate the resonance frequency of cavity filter 100.The quantity that is appreciated that cavity 20 can arrange according to actual needs; In each cavity 20, the quantity of resonant body 40 also can arrange according to actual needs, and the quantity of the corresponding resonant body 40 of the quantity of tuning screw 80 and through hole 62.
See also Fig. 2 and Fig. 3, tuning screw 80 comprises a regulating part 82 and is sheathed on locking part 84 on regulating part.Regulating part 82 is fixed in through hole 62 by locking part 84.
Regulating part 82 is arranged in through hole 62, and is positioned at the place, top position of tuning body 40.Regulating part 82 is made by metal material.Regulating part 82 roughly is cylindrical shape, it comprise the section of holding 822 and with the connecting portion 824 that holds section 822 and be connected setting.Hold on the end face of section 822 away from connecting portion 824 and be formed with driver slot 8224, in order to admit the screwdriver (not shown), thereby regulate the position of tuning screw 80 in through hole 62, and then adjust the resonance frequency of cavity filter 100.Wherein, connecting portion 824 is towards the resonant body 40 that is arranged in cavity 20.Hold on the periphery wall of section 822 to be convexly equipped with vertically and be formed with some bar shapeds and hold tooth bar 8226.Be appreciated that in the section of holding 822 and also can be arranged to other decorative pattern shape, as screw thread, lozenge etc., hold effect as long as it can reach; Regulating part 82 also can be traditional screw-rod structure, as long as it can be fixed and be locked in through hole 62 with locking part 84.
Locking part 84 is the hollow sleeve tubular, and it is installed in through hole 62 in company with regulating part 82 after being sheathed in the section of holding 822, in order to regulating part 82 fixedly is locked in through hole 62.The inwall 842 of locking part 84 fits tightly in holding in section 822.Locking part 84 is made by material softer and that have elasticity and plasticity.In present embodiment, locking part 84 is made by the thermoplastic elastomer (TPE) with elasticity and plasticity (TPE) material; Inwall 842 is shiny surface.And when being sheathed on locking part 84 in the section of holding 822 and being installed in through hole 62, extruding due to the sidewall that is subject to through hole 62 and regulating part 82, the inwall 842 of locking part 84 and holding together with tooth bar 8226 closely is snapped at mutually on holding section 822, and then realize tuning screw 80 firmly from locking in through hole 62.Be appreciated that on the inwall of locking part 84 also can first suppress and form the decorative pattern corresponding with the section that holds 822 of regulating part 82.
During assembling, at first resonant body 40 is arranged in cavity 20; Lid 60 be fixed at the opening 22 of cavity 20 on closed cavity 20 thereafter.Afterwards, locking part 84 is sheathed in the section of holding 822, completes the assembling of tuning screw.Again, regulating part 82 is packed in through hole 62, and regulate the distance of regulating part 82 relative resonant bodies 40 by screwdriver, and then the frequency of adjustment cavity filter 100, and tuning screw 80 is stable from locking in through hole 62 the most at last, has namely completed the assembling of cavity filter 100.
In addition, those skilled in the art can also do other variation in spirit of the present invention, and certainly, the variation that these are done according to spirit of the present invention, all should be contained in the present invention's scope required for protection.
Claims (10)
1. tuning screw, the resonance frequency that is used for regulating cavity filter, it is characterized in that: this tuning screw comprises regulating part and locking part, this regulating part is provided with the section of holding; This locking part is sheathed on this and holds in section and with this section of holding and match, so that this tuning screw can lock on cavity filter certainly.
2. tuning screw as claimed in claim 1, it is characterized in that: this locking part is made by elasticity and plastic material.
3. tuning screw as claimed in claim 2, it is characterized in that: this holds in section to be convexly equipped with vertically to be formed with and holds tooth bar.
4. tuning screw as claimed in claim 1, it is characterized in that: this regulating part also includes connecting portion, and this connecting portion is connected setting with this section of holding.
5. tuning screw as claimed in claim 4, it is characterized in that: this holds on the end face of section away from this connecting portion and is formed with driver slot.
6. cavity filter, it comprises cavity, resonant body, lid and tuning screw, and this cavity has opening, and this resonant body is installed in this cavity, and this cover cap is located at this cavity hatch one end; On this lid to offering through hole by resonant body; This tuning screw is installed in this through hole, is used for regulating the resonance frequency of cavity filter; It is characterized in that: this tuning screw comprises regulating part and locking part, and this regulating part is provided with the section of holding; This locking part is sheathed on this and holds in section and with this section of holding and match, so that in the through hole of this tuning screw self-locking on cavity filter.
7. cavity filter as claimed in claim 6, it is characterized in that: this locking part is made by elasticity and plastic material.
8. cavity filter as claimed in claim 7, it is characterized in that: this holds in section to be convexly equipped with vertically and is formed with some tooth bars that hold, and the inwall of this locking part holds together with tooth bar closely is snapped at mutually with this.
9. cavity filter as claimed in claim 6, it is characterized in that: this regulating part also includes connecting portion, and this connecting portion is connected setting with this section of holding.
10. cavity filter as claimed in claim 9, it is characterized in that: this holds on the end face of section away from this connecting portion and is formed with driver slot.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101398337A CN103390782A (en) | 2012-05-08 | 2012-05-08 | Tuning screw and cavity filter with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101398337A CN103390782A (en) | 2012-05-08 | 2012-05-08 | Tuning screw and cavity filter with same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103390782A true CN103390782A (en) | 2013-11-13 |
Family
ID=49534984
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012101398337A Pending CN103390782A (en) | 2012-05-08 | 2012-05-08 | Tuning screw and cavity filter with same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103390782A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103887580A (en) * | 2014-03-07 | 2014-06-25 | 深圳三星通信技术研究有限公司 | Cavity filter and tuning screw thereof |
| CN107768784A (en) * | 2016-08-23 | 2018-03-06 | 凯镭思通讯设备（上海）有限公司 | A kind of tuning pipe mechanism for cavity body filter |
| CN112448108A (en) * | 2019-08-29 | 2021-03-05 | 上海诺基亚贝尔股份有限公司 | Filter, self-locking adjusting device for filter and manufacturing method of self-locking adjusting device |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1441879A (en) * | 2000-07-14 | 2003-09-10 | 奥根公司 | Tuning screw assembly |
| CN202134638U (en) * | 2011-06-02 | 2012-02-01 | 苏州易特诺科技股份有限公司 | Tuning screw of self-tapping and self-locking |
| CN202167593U (en) * | 2011-04-22 | 2012-03-14 | 深圳市大富科技股份有限公司 | Cavity filter, communication device, communication device cover plate assembly and tuning structure |
-
2012
- 2012-05-08 CN CN2012101398337A patent/CN103390782A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1441879A (en) * | 2000-07-14 | 2003-09-10 | 奥根公司 | Tuning screw assembly |
| CN202167593U (en) * | 2011-04-22 | 2012-03-14 | 深圳市大富科技股份有限公司 | Cavity filter, communication device, communication device cover plate assembly and tuning structure |
| CN202134638U (en) * | 2011-06-02 | 2012-02-01 | 苏州易特诺科技股份有限公司 | Tuning screw of self-tapping and self-locking |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103887580A (en) * | 2014-03-07 | 2014-06-25 | 深圳三星通信技术研究有限公司 | Cavity filter and tuning screw thereof |
| CN103887580B (en) * | 2014-03-07 | 2019-01-01 | 深圳三星通信技术研究有限公司 | A kind of cavity body filter and its tuning screw |
| CN107768784A (en) * | 2016-08-23 | 2018-03-06 | 凯镭思通讯设备（上海）有限公司 | A kind of tuning pipe mechanism for cavity body filter |
| CN112448108A (en) * | 2019-08-29 | 2021-03-05 | 上海诺基亚贝尔股份有限公司 | Filter, self-locking adjusting device for filter and manufacturing method of self-locking adjusting device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103390782A (en) | Tuning screw and cavity filter with same | |
| CN101315999B (en) | Screw device and cavity filter using the same | |
| CN201455951U (en) | Telescopic pipe of electric tool | |
| WO2007024616A3 (en) | Resonator with adjustable capacitor for medical device | |
| CN201371390Y (en) | Variable uniform dividing mechanism for numerical control machine tool | |
| EP1566820A4 (en) | Polarizable electrode for electric double-layer capacitor, process for producing the polarizable electrode and process for producing the electric double-layer capacitor | |
| CN101922495A (en) | Screw device and cavity filter using same | |
| CN203962065U (en) | A kind of camshaft | |
| CN204530874U (en) | A kind of gondola water faucet lifter rod fixed structure | |
| WO2018129019A3 (en) | Molding designs for helical antennas | |
| CN203423224U (en) | Battery assembly and electronic cigarette | |
| CN209626394U (en) | The filter of Self-locking screw and the application screw | |
| AU2008291894B2 (en) | Low vibration dielectric resonant oscillators | |
| CN105119112B (en) | A kind of display device | |
| CN204976319U (en) | Flat plate sander | |
| CN207449704U (en) | It is a kind of easily to shake hands from adaptation | |
| WO2014136011A1 (en) | Bottle for containing varnishable products | |
| CN213733134U (en) | Outer cover injection molding part mold | |
| CN217333912U (en) | Key cap for keyboard | |
| KR200459643Y1 (en) | Hook-Strap Structure | |
| CN205001329U (en) | Two have reinforcing apparatus to wearing screw rod | |
| CN104074854A (en) | Lock nut | |
| CN203655494U (en) | Supporting component | |
| US7650820B2 (en) | Handled tool | |
| CN205015996U (en) | A card reader fixing device for self -service medical terminal machine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20131113 |