CN203813012U - Grooved circular nut tuning device - Google Patents
Grooved circular nut tuning device Download PDFInfo
- Publication number
- CN203813012U CN203813012U CN201420167625.2U CN201420167625U CN203813012U CN 203813012 U CN203813012 U CN 203813012U CN 201420167625 U CN201420167625 U CN 201420167625U CN 203813012 U CN203813012 U CN 203813012U
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- CN
- China
- Prior art keywords
- round nut
- grooved round
- notch
- screwdriver
- tuning screw
- 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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Abstract
The embodiment of the utility model provides a grooved circular nut tuning device. The grooved circular nut tuning device comprises a tuning screw rod and a grooved circular nut. The tuning screw rod is connected with a resonator. The bottom end face of the tuning screw rod is provided with a screwdriver groove for allowing a screwdriver to adjust and rotate the screw rod. The tuning screw rod is externally sleeved with the grooved circular nut. The tuning screw rod and the grooved circular nut are connected through screw threads. The end face of the grooved circular nut is provided with a sleeve groove used for allowing a sleeve to adjust and rotate the grooved circular nut. According to the grooved circular nut tuning device provided by the utility model, the grooved circular nut is used to lock the tuning screw rod; the size of a nut and sleeve clearance cavity is reduced; the requirement of an product performance index on the structural shape and size is met; and the product size can be reduced while the development cost is lowered.
Description
Technical field
The utility model relates to communication equipment field, relates in particular to a kind of grooved round nut tuner.
Background technology
Coaxial cavity RF device is the device for the treatment of 300KHz～12GHz electromagnetic wave signal, mainly applies to the front-end filtering of each large communication base station, the outer high reject signal of filtering band.
Coupling coaxial cavity filter works in TEM(Transverse Electric and Magnetic Field, electromagnetic field) mould, its structural principle is as shown in Figure 1.Between each resonator 31, pass through electromagnetic field couples, but be mainly to pass through magnetic Field Coupling.This is mainly because being placed on two coupling screw rods 32 between resonator 31 open ends can reduce the field coupled between resonator, thereby has increased magnetic coupling (it equals electromagnetic field couples total amount and deducts field coupled amount).In like manner, the decoupling partition wall between two resonator 31 short circuit faces has reduced magnetic coupling, thereby has also reduced total coupling amount.Be positioned at the resonance frequency that the RC tuning screw 33 of two resonators, 31 open end is mainly used in adjusting resonant cavity.
Tuning screw of the prior art and operation principle thereof be as shown in Figure 2,3: tuning screw 33 outer surfaces are carved with screw thread, and its outer cover is provided with the hex nut 34 for locking this tuning screw.When adjustment, first adjust the height of tuning screw 33 with screwdriver 35, then surely live this tuning screw 33 with screwdriver 35, with interior Hexagonal jacket 36, hex nut 34 is locked on the cavity 37 of coupling coaxial cavity filter simultaneously.In the case, need to open very large empty avoiding chamber for the adjustment of interior Hexagonal jacket 36 (screw or unclamp hex nut), cause the volume of whole product to increase.
Summary of the invention
Fastening by hex nut for solving in prior art tuning screw, and need to open very large empty avoiding chamber for adjusting the interior Hexagonal jacket of hex nut, the problem that causes the volume of whole product to increase, owing to having changed the shape and size of structure simultaneously, it also can exert an influence to product performance index.The utility model provides a kind of grooved round nut tuner, comprises tuning screw and grooved round nut;
Described tuning screw connects resonator, and its bottom end face is provided with the screwdriver notch for the adjusted rotation of screwdriver;
Described tuning screw is arranged with grooved round nut outward, between described tuning screw and described grooved round nut, is threaded connection, and the end face of described grooved round nut is provided with the sleeve notch for the adjusted rotation of sleeve.
Wherein, the outer surface of described grooved round nut is cylindrical.
Wherein, described screwdriver notch is in-line notch, for the adjusted rotation of flat mouth screwdriver.
Wherein, described screwdriver notch is cross notch, for the adjusted rotation of Phillips screwdriver.
Wherein, described sleeve notch is made up of at least two notches that are evenly distributed on described grooved round nut end face.
Wherein, described sleeve notch is cross four notches that are evenly distributed on described grooved round nut end face.
Wherein, described screwdriver notch and described sleeve notch are groove.
Wherein, described tuning screw is provided with end face that the end face of described screwdriver notch is provided with sleeve notch with described grooved round nut towards identical.
The utility model provides a kind of grooved round nut tuner, adopts grooved round nut locking tuning screw, reduces the size in ut socket empty avoiding chamber, to reduce small product size, reduces R&D costs.
Brief description of the drawings
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is only embodiment more of the present utility model, for those of ordinary skill in the art, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is coupling coaxial cavity filter structural representation;
Fig. 2 is tuning screw of the prior art and interior Hexagonal jacket structural representation;
Fig. 3 is screwdriver of the prior art and interior Hexagonal jacket structural representation;
The grooved round nut tuner structural representation that Fig. 4 provides for the utility model embodiment;
The grooved round nut structural representation that Fig. 5 provides for the utility model;
The another schematic diagram of grooved round nut structure that Fig. 6 provides for the utility model;
The tube-in-tube structure schematic diagram that Fig. 7 provides for the utility model.
Embodiment
In order to make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with accompanying drawing, the utility model is described in further detail, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not making all other embodiment that obtain under creative work prerequisite, all belong to the scope of the utility model protection.
Referring to Fig. 4, it is grooved round nut tuner example structure schematic diagram provided by the invention.As shown in Figure 4, this grooved round nut tuner comprises tuning screw 11 and grooved round nut 12.
Described tuning screw 11 connects resonator 31, and its bottom end face is provided with the screwdriver notch (not shown) for screwdriver 13 adjusted rotations.Described tuning screw 11 is outer is arranged with grooved round nut 12, between described tuning screw 11 and described grooved round nut 12, is threaded connection, and the end face of described grooved round nut 12 is provided with the sleeve notch for the adjusted rotation of 14 sleeve.Described tuning screw 11 is provided with end face that the end face of described screwdriver notch is provided with sleeve notch with described grooved round nut 12 towards identical, and described screwdriver notch and described sleeve notch are groove.
It will be appreciated by persons skilled in the art that described screwdriver notch has various shape for you to choose, for example, can be in-line notch, for the adjusted rotation of flat mouth screwdriver, can be also cross bath mouth, for the adjusted rotation of Phillips screwdriver.
More specifically, referring to Fig. 5 and Fig. 6, the grooved round nut structural representation providing for the utility model.As shown in the figure, the outer surface of this grooved round nut 12 is cylindrical.Described sleeve notch 15 is made up of at least two notches that are evenly distributed on described grooved round nut end face.Preferably, described sleeve notch 15 is cross four notches that are evenly distributed on described grooved round nut end face.
The grooved round nut tuner operation principle that the embodiment of the present invention provides is as follows: the height of first adjusting tuning screw 11 with screwdriver 13, then surely live tuning screw 11 with screwdriver 13, protuberance again sleeve 14(as shown in Figure 7) is aimed at the notch 15 of grooved round nut 12, firmly locks grooved round nut 12.
The utility model provides a kind of grooved round nut tuner, adopts grooved round nut locking tuning screw, reduces the size in ut socket empty avoiding chamber, to reduce small product size, reduces R&D costs.
Above content is in conjunction with concrete preferred implementation further detailed description of the utility model, can not assert that concrete enforcement of the present utility model is confined to these explanations.For the utility model person of an ordinary skill in the technical field, without departing from the concept of the premise utility, can also make some simple deduction or replace, all should be considered as belonging to protection range of the present utility model.
Claims (8)
1. a grooved round nut tuner, is characterized in that, comprises tuning screw and grooved round nut;
Described tuning screw connects resonator, and its bottom end face is provided with the screwdriver notch for the adjusted rotation of screwdriver;
Described tuning screw is arranged with grooved round nut outward, between described tuning screw and described grooved round nut, is threaded connection, and the end face of described grooved round nut is provided with the sleeve notch for the adjusted rotation of sleeve.
2. grooved round nut tuner as claimed in claim 1, is characterized in that, the outer surface of described grooved round nut is cylindrical.
3. grooved round nut tuner as claimed in claim 1, is characterized in that, described screwdriver notch is in-line notch, for the adjusted rotation of flat mouth screwdriver.
4. grooved round nut tuner as claimed in claim 1, is characterized in that, described screwdriver notch is cross notch, for the adjusted rotation of Phillips screwdriver.
5. grooved round nut tuner as claimed in claim 1, is characterized in that, described sleeve notch is made up of at least two notches that are evenly distributed on described grooved round nut end face.
6. grooved round nut tuner as claimed in claim 5, is characterized in that, described sleeve notch is cross four notches that are evenly distributed on described grooved round nut end face.
7. the grooved round nut tuner as described in any one in claim 1 to 6, is characterized in that, described screwdriver notch and described sleeve notch are groove.
8. grooved round nut tuner as claimed in claim 7, is characterized in that, described tuning screw is provided with end face that the end face of described screwdriver notch is provided with sleeve notch with described grooved round nut towards identical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420167625.2U CN203813012U (en) | 2014-04-09 | 2014-04-09 | Grooved circular nut tuning device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420167625.2U CN203813012U (en) | 2014-04-09 | 2014-04-09 | Grooved circular nut tuning device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203813012U true CN203813012U (en) | 2014-09-03 |
Family
ID=51451729
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420167625.2U Expired - Fee Related CN203813012U (en) | 2014-04-09 | 2014-04-09 | Grooved circular nut tuning device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203813012U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105934143A (en) * | 2016-04-29 | 2016-09-07 | 南京航空航天大学 | Adjustable electromagnetic shielding cover and radio frequency circuit optimization method |
-
2014
- 2014-04-09 CN CN201420167625.2U patent/CN203813012U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105934143A (en) * | 2016-04-29 | 2016-09-07 | 南京航空航天大学 | Adjustable electromagnetic shielding cover and radio frequency circuit optimization method |
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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 |
Granted publication date: 20140903 Termination date: 20200409 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |