CN104467725A - Anti-interference filter - Google Patents
Anti-interference filter Download PDFInfo
- Publication number
- CN104467725A CN104467725A CN201410786633.XA CN201410786633A CN104467725A CN 104467725 A CN104467725 A CN 104467725A CN 201410786633 A CN201410786633 A CN 201410786633A CN 104467725 A CN104467725 A CN 104467725A
- Authority
- CN
- China
- Prior art keywords
- filter
- joints
- pin joints
- main body
- pin
- 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.)
- Withdrawn
Links
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- Roof Covering Using Slabs Or Stiff Sheets (AREA)
Abstract
The invention relates to the technical field of radio transmission equipment, in particular to an anti-interference filter. The number of PIN joints of an existing filter cannot meet demands, the PIN joints are fixedly arranged on the outside of the filter and are not attractive, and dust is likely to enter the filter when the filter is not used. The anti-interference filter comprises a filter body, a plurality of PIN joints are uniformly distributed on the periphery of the filter body, each side is provided with two PIN joints, and the PIN joints are fixed in grooves in the periphery of the filter body through rotating shafts. The improved anti-interference filter is simple in structure and convenient to operate, the number of the joints is large, the joints are rotatable, the dust prevention effect is good, the joints of the corresponding number are rotated out according to needs, and filtering performance is effectively improved.
Description
Technical field
The present invention relates to radio transmission apparatus technical field, especially a kind of roofing filter.
Background technology
The filter circuit that power-supply filter is made up of electric capacity, inductance and resistance, a kind of passive bidirectional network, its one end is power supply, the other end is load, it is the device that ripple is filtered, it can carry out effective filtering to the frequency beyond the frequency of characteristic frequency in power line or this frequency, obtains the power supply signal of a characteristic frequency, or eliminates the power supply signal after a characteristic frequency.Existing filter PIN joint quantity can not satisfy the demands, and PIN joint is fixedly installed on filter main body unsightly outward, also easily enters dust when not using.
Summary of the invention
In order to overcome existing above-mentioned deficiency, the invention provides a kind of roofing filter.
The technical solution adopted for the present invention to solve the technical problems is: a kind of roofing filter, comprise filter main body, filter main body surrounding several PIN joints uniform, every limit has two, and PIN joint is fixed in the groove of filter main body surrounding by rotating shaft.
The invention has the beneficial effects as follows, structure is simple, and easy to operate, joint quantity is many and rotatable, good dustproof effect, screws out the joint of respective numbers according to demand, effectively improves filtering performance.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the present invention is further described.
Fig. 1 is front view of the present invention.
Fig. 2 is end view of the present invention.
1. filter main body in figure, 2.PIN joint, 3. rotating shaft.
Embodiment
As shown in Figure 1, 2, a kind of roofing filter, comprises filter main body 1, and filter main body 1 surrounding several PIN joints 2 uniform, every limit has two, and PIN joint 2 is fixed in the groove of filter main body 1 surrounding by rotating shaft 3.
PIN joint 2 is hidden in groove, can be dust-proof, and multiple filter is convenient again together to be stacked, and outside filter main body 1, every limit has two, enough meets user demand.
Roofing filter structure after improvement is simple, and easy to operate, joint quantity is many and rotatable, good dustproof effect, screws out the joint of respective numbers according to demand, effectively improves filtering performance.
Claims (1)
1. a roofing filter, comprise filter main body (1), it is characterized in that, described filter main body (1) surrounding several PIN joints (2) uniform, every limit has two, and PIN joint (2) is fixed in the groove of filter main body (1) surrounding by rotating shaft (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410786633.XA CN104467725A (en) | 2014-12-18 | 2014-12-18 | Anti-interference filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410786633.XA CN104467725A (en) | 2014-12-18 | 2014-12-18 | Anti-interference filter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104467725A true CN104467725A (en) | 2015-03-25 |
Family
ID=52913214
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410786633.XA Withdrawn CN104467725A (en) | 2014-12-18 | 2014-12-18 | Anti-interference filter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104467725A (en) |
-
2014
- 2014-12-18 CN CN201410786633.XA patent/CN104467725A/en not_active Withdrawn
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C04 | Withdrawal of patent application after publication (patent law 2001) | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20150325 |