CN202474160U - Resonant rod and cavity filter - Google Patents
Resonant rod and cavity filter Download PDFInfo
- Publication number
- CN202474160U CN202474160U CN 201220080938 CN201220080938U CN202474160U CN 202474160 U CN202474160 U CN 202474160U CN 201220080938 CN201220080938 CN 201220080938 CN 201220080938 U CN201220080938 U CN 201220080938U CN 202474160 U CN202474160 U CN 202474160U
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- Prior art keywords
- resonant rod
- boss
- cavity
- gland
- face
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Abstract
The utility model discloses a resonant rod and a cavity filter. The cavity filter comprises a cavity and the resonant rod, wherein the resonant rod is equipped at a boss in the cavity; a mounting hole matched with the boss is formed at the central position of the bottom end face of the resonant rod; the boss penetrates through the mounting hole; the resonant rod is fixed in the cavity by a set of pressing sleeve arranged on the boss; the pressing sleeve is locked on the boss by a screw; and the bottom of the pressing sleeve is compactly pressed against the bottom end face of the resonant rod. The resonant rod is fixed on the mounting boss through increasing one pressing sleeve and pressing the pressing sleeve against the bottom end face of the resonant rod by the screw, so that the mounted resonant rod is not easy to loose, and the assembly accuracy of the resonant rod and the mounting boss is improved; furthermore, a radio frequency debugging index is improved, and the entire performance of the cavity filter is advanced. Through the resonant rod and the cavity filter, the problem that when the mounting surface of the resonant rod is lower, the tensile resonant rod cannot be utilized is solved. The cost and production cycle are reduced; the effect is more significant when the large-scale production is performed; and the production efficiency is improved.
Description
Technical field
The utility model relates to communication equipment field, is specifically related to a kind of resonant rod and cavity body filter.
Background technology
In research and practice process to prior art; The inventor of the utility model finds that the resonant rod installed surface is apart from cavity bottom surface distance when very little; Resonant rod can only add resonant rod or cold-heading resonant rod by the employing machine; But machine add the process-cycle of resonant rod and cold-heading resonant rod long, cost is high, especially when producing in enormous quantities, high more obvious with long shortcoming embodiment of cycle of cost.For addressing this problem; Usually adopt stretching resonant rod as shown in Figure 1; But location that should the stretching resonant rod is the installing hole that leans on resonant rod with trip bolt to be cooperated near a bit of polished rod of head and positions; Because the deviation that the screw polished rod is partly processed is bigger, often causes the resonant rod location inaccurate, thereby cause rf data deviation to occur.Influence the debugging index of product.
Can know that to sum up existing resonant rod and cavity body filter obviously exist inconvenience and defective, so be necessary to improve on reality is used.
The utility model content
In order to solve the problem that exists in the prior art, the utility model provides a kind of resonant rod and cavity body filter, shortens the product manufacturing cycle, reduces product cost, enhances productivity, and can improve the radio frequency adjustment accuracy simultaneously, promotes the product overall performance.
To achieve these goals; The utility model provides a kind of cavity body filter; Comprise cavity and resonant rod, said resonant rod is installed on the boss in the said cavity, and the bottom end face center of said resonant rod has the installing hole that cooperates with said boss; Said boss passes said installing hole; Said resonant rod is fixed in said cavity through the gland that is sheathed on the said boss, and said gland is locked on the said boss through screw, and the bottom end face that said resonant rod is pressed in the bottom of said gland makes resonant rod reliably contact with the cavity bottom surface.
According to the cavity body filter of the utility model, said resonant rod top has the flange face of outside turnover.
According to the cavity body filter of the utility model, said boss is provided with screwed hole, and said gland is provided with perforation, and said screw is arranged in said perforation and screws togather with said screwed hole.
According to the cavity body filter of the utility model, the outside diameter of said boss equates with the aperture of the installing hole of said resonant rod bottom end face.
The utility model also provides a kind of resonant rod; Be used for cavity body filter; Said cavity body filter comprises cavity, and said resonant rod is installed on the boss in the said cavity, and the bottom end face center of said resonant rod has the installing hole that cooperates with said boss; Said boss passes said installing hole; Said resonant rod is fixed in said cavity through the gland that is sheathed on the said boss, and said gland is locked on the said boss through screw, and the bottom end face that said resonant rod is pressed in the bottom of said gland makes resonant rod reliably contact with the cavity bottom surface.
According to the resonant rod of the utility model, said resonant rod top has the flange face of outside turnover.
According to the resonant rod of the utility model, said boss is provided with screwed hole, and said gland is provided with perforation, and said screw is arranged in said perforation and screws togather with said screwed hole.
According to the resonant rod of the utility model, the outside diameter of said boss equates with the aperture of the installing hole of said resonant rod bottom end face.
The utility model is through increasing a gland; The installing hole of resonant rod cooperates with the boss of cavity, through screw gland is pressed in the resonant rod bottom end face, and then resonant rod is fixed on the installation base; Making resonant rod that the end back is installed is difficult for loosening; Can improve the assembly precision of resonant rod and installation base, thereby improve radio frequency debugging index, promote the overall performance of cavity body filter.Simultaneously the utility model has also solved the resonant rod installed surface when relatively lower, can not adopt the problem of stretching resonant rod, reduces cost and production cycle, and especially effect is more obvious when producing in enormous quantities, has improved production efficiency.
Description of drawings
In order to be illustrated more clearly in the technical scheme among the utility model embodiment; The accompanying drawing of required use is done to introduce simply in will describing embodiment below; Obviously, the accompanying drawing in describing below only is some embodiment of the utility model, for those of ordinary skills; Under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the cutaway view of cavity body filter in the prior art;
Fig. 2 is the cutaway view of a kind of embodiment of the utility model cavity body filter;
Fig. 3 is the cutaway view of a kind of embodiment of the utility model resonant rod;
Fig. 4 is the cutaway view of gland in the utility model cavity body filter.
Embodiment
To combine the accompanying drawing among the utility model embodiment below, the technical scheme among the utility model embodiment is carried out clear, intactly description, obviously, described embodiment only is the utility model part embodiment, rather than whole embodiment.Based on the embodiment in the utility model, those of ordinary skills are not making the every other embodiment that is obtained under the creative work prerequisite, all belong to the scope of the utility model protection.
Like Fig. 2～shown in Figure 4, a kind of cavity body filter 100 of the utility model comprises cavity 10 and resonant rod 20.
Boss 11 is provided with screwed hole 121, and gland 30 is provided with perforation 31, and screw 40 is arranged in perforation 31 and screws togather with screwed hole 121.And the outside diameter of boss 11 equates with the aperture of the installing hole 21 of resonant rod 20 bottom end faces, and precision is adaptive.
Wherein, resonant rod 20 tops have the flange face 22 of outside turnover.
The utility model is through increasing a gland 30, and the installing hole 21 of resonant rod 20 cooperates with the boss 11 of cavity 10, and gland 30 is locked on the boss 11 through screw 40, and the bottom end face of resonant rod 10 is pressed in the bottom of gland 30.Thereby resonant rod 20 is pressed on boss 11, and installation finishes back resonant rod 20 and is difficult for becoming flexible, and can improve the assembly precision of resonant rod 20 and installation base 11, thereby improves radio frequency debugging index, promotes the overall performance of cavity body filter 100.Simultaneously the utility model has also solved the resonant rod installed surface when relatively lower, can not adopt the problem of stretching resonant rod, reduces cost and production cycle, and especially effect is more obvious when producing in enormous quantities, has improved production efficiency.
The utility model is corresponding to provide a kind of resonant rod; Be used for cavity body filter, said cavity body filter comprises cavity, and resonant rod is installed on the boss in the said cavity; The bottom end face center of said resonant rod has the installing hole that cooperates with said boss; Said resonant rod is fixed in said cavity through the gland that is sheathed on the said boss, and said gland is locked on the said boss through screw, and the bottom end face of said resonant rod is pressed in the bottom of said gland.The concrete structure of resonant rod is done detailed description at preamble, so repeat no more at this.
In sum, the utility model is through increasing a gland, and the installing hole of resonant rod cooperates with the boss of cavity; Through screw gland is pressed in the resonant rod bottom end face; And then resonant rod is fixed on the installation base, and make resonant rod that the end back is installed and be difficult for becoming flexible, can improve the assembly precision of resonant rod and installation base; Thereby improve radio frequency debugging index, promote the overall performance of cavity body filter.Simultaneously the utility model has also solved the resonant rod installed surface when relatively lower, can not adopt the problem of stretching resonant rod, reduces cost and production cycle, and especially effect is more obvious when producing in enormous quantities, has improved production efficiency.
Used concrete example among this paper the principle and the execution mode of the utility model are set forth, the explanation of above embodiment just is used to help to understand the method and the core concept thereof of the utility model; Simultaneously, for one of ordinary skill in the art, according to the thought of the utility model, the part that on embodiment and range of application, all can change, in sum, this description should not be construed as the restriction to the utility model.
Claims (8)
1. cavity body filter; It is characterized in that; Comprise cavity and resonant rod, said resonant rod is installed on the boss in the said cavity, and the bottom end face center of said resonant rod has the installing hole that cooperates with said boss; Said boss passes said installing hole; Said resonant rod is fixed in said cavity through the gland that is sheathed on the said boss, and said gland is locked on the said boss through screw, and the bottom end face that said resonant rod is pressed in the bottom of said gland makes resonant rod reliably contact with the cavity bottom surface.
2. cavity body filter according to claim 1 is characterized in that, said resonant rod top has the flange face of outside turnover.
3. cavity body filter according to claim 1 is characterized in that said boss is provided with screwed hole, and said gland is provided with perforation, and said screw is arranged in said perforation and screws togather with said screwed hole.
4. cavity body filter according to claim 3 is characterized in that, the outside diameter of said boss equates with the aperture of the installing hole of said resonant rod bottom end face.
5. resonant rod; Be used for cavity body filter, said cavity body filter comprises cavity, it is characterized in that; Said resonant rod is installed on the boss in the said cavity; The bottom end face center of said resonant rod has the installing hole that cooperates with said boss, and said boss passes said installing hole, and said resonant rod is fixed in said cavity through the gland that is sheathed on the said boss; Said gland is locked on the said boss through screw, and the bottom end face that said resonant rod is pressed in the bottom of said gland makes resonant rod reliably contact with the cavity bottom surface.
6. resonant rod according to claim 6 is characterized in that, said resonant rod top has the flange face of outside turnover.
7. resonant rod according to claim 6 is characterized in that said boss is provided with screwed hole, and said gland is provided with perforation, and said screw is arranged in said perforation and screws togather with said screwed hole.
8. resonant rod according to claim 6 is characterized in that, the outside diameter of said boss equates with the aperture of the installing hole of said resonant rod bottom end face.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220080938 CN202474160U (en) | 2012-03-06 | 2012-03-06 | Resonant rod and cavity filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220080938 CN202474160U (en) | 2012-03-06 | 2012-03-06 | Resonant rod and cavity filter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202474160U true CN202474160U (en) | 2012-10-03 |
Family
ID=46922300
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220080938 Expired - Fee Related CN202474160U (en) | 2012-03-06 | 2012-03-06 | Resonant rod and cavity filter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202474160U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103811836A (en) * | 2012-11-07 | 2014-05-21 | 深圳市大富科技股份有限公司 | Cavity filter and screw device |
| CN107615579A (en) * | 2015-05-20 | 2018-01-19 | 华为技术有限公司 | Wave filter and electromagnetic equipment |
-
2012
- 2012-03-06 CN CN 201220080938 patent/CN202474160U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103811836A (en) * | 2012-11-07 | 2014-05-21 | 深圳市大富科技股份有限公司 | Cavity filter and screw device |
| CN107615579A (en) * | 2015-05-20 | 2018-01-19 | 华为技术有限公司 | Wave filter and electromagnetic equipment |
| CN107615579B (en) * | 2015-05-20 | 2020-02-21 | 华为技术有限公司 | Filter and electromagnetic device |
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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: 20121003 Termination date: 20180306 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |