CN203826517U - Cavity filter and tuning screw thereof - Google Patents
Cavity filter and tuning screw thereof Download PDFInfo
- Publication number
- CN203826517U CN203826517U CN201420101671.2U CN201420101671U CN203826517U CN 203826517 U CN203826517 U CN 203826517U CN 201420101671 U CN201420101671 U CN 201420101671U CN 203826517 U CN203826517 U CN 203826517U
- Authority
- CN
- China
- Prior art keywords
- tuning screw
- facing
- screwed hole
- cover plate
- cavity
- 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
Links
Landscapes
- Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)
Abstract
The utility model discloses a tuning screw used for a cavity filter. The tuning screw is used for being driven into a threaded hole which is formed in a cover plate possessed by the cavity filter, and the tuning screw is connected with the threaded hole in a fastening way. The tuning screw comprises a tuning screw body and a tooth sleeve which can be screwed into the thread hole possessed by the cover plate and can be adaptive to and engaged with the threaded hole. One end of the tuning screw body is provided with external threads. When the external threads of the tuning screw body are screwed into the threaded hole with the preset tooth sleeve, the external threads are fastened in the threaded hole of the cover plate via screwing and extruding the tooth sleeve. The utility model also discloses the cavity filter with the aforementioned tuning screw. With application of the cavity filter and the tuning screw thereof, an assembling structure enabling two components with different materials to be assembled together is not additionally arranged so that assembling difficulty and assembling cost are reduced. Meanwhile, locking reliability can be guaranteed and situations of slip and loosening can be prevented; and assembling is convenient and assembling efficiency is high so that single-direction tuning of a double-layer filter can be realized.
Description
Technical field
The utility model relates to domain of communication equipment, relates in particular to a kind of cavity body filter and tuning screw thereof.
Background technology
In prior art, mainly contain following several mode for the anti-loose structure of cavity body filter tuning screw:
1, the mode of nut locking tuning screw.When enforcement, by nut, tuning screw one end is had to externally threaded locking tuning screw is locked on the cover board.There are the following problems for which: due to the extra lock nut of needs, it can increase space and the Material Cost of product, and need to carry out nut fasteningly, increased tuning period, is unfavorable for the raising of efficiency of assembling.
2, the head of tuning screw increases the mode of elastic portion.When enforcement, by increasing elastic portion at the head of coordinating screw rod, after making tuning screw in the screwed hole being screwed on cover plate, the internal thread on cover plate can go out external screw thread at the peripheral self tapping of elastic portion, makes the tight interlock of elastic portion and screwed hole.There are the following problems for which: because head and the elastic portion of tuning screw are used two kinds of different materials to make, the assembly structure that two kinds of parts is assembled into one need to be additionally set, also higher to the requirement of precision, increase difficulty and the assembly cost manufactured.
3, be mounted with seat in the inner side of cover plate and the mode of elastic ring is set on holder.When enforcement, in tuning screw is planted holder after, because the interior circular diameter setting of elastic ring is less than the diameter of tuning plug, elastic ring can be held tuning screw tightly.There are the following problems for which: need to assembly structure be additionally set and realize the assembling of holder and cover plate, holder also needs to arrange the corresponding construction that holds elastic ring; In addition, because the fastening force of elastic ring is limited, cannot continue to keep the fixing reliability of tuning screw, easily occur loosening.
Therefore, be necessary to design a kind of cost low, assemble convenient, can to improve efficiency of assembling tuning screw.
Utility model content
Technical problem to be solved in the utility model is, a kind of cavity body filter and tuning screw thereof are provided, and it is convenient to assemble, and efficiency of assembling is high, and is easy to control cost; The one direction that can realize double-deck filter is tuning.
In order to solve the problems of the technologies described above, embodiment of the present utility model provides a kind of tuning screw for cavity body filter, be formed in the screwed hole that cavity body filter has cover plate and be fastenedly connected with it in order to be driven into, it is characterized in that, comprising: tuning screw body and can screwing in the screwed hole that cover plate has and the facing of suitable engagement with it; One end of tuning screw body has external screw thread, wherein: in the time that screwing into of tuning screw body preset in the screwed hole of facing, external thread rotary twisting presses facing to be fastened in the screwed hole of cover plate.
Wherein, facing has elasticity, and in the time that screwing into of tuning screw body preset in the screwed hole of facing, external screw thread makes facing produce deformation and engage with it.
Wherein, the screwed hole of cover plate is in the time that facing is screwed in wherein, and screwed hole makes facing produce deformation and engage with it.
Wherein, facing is overall cylindrical helicoid.
For solving the problems of the technologies described above, the another kind of technical scheme that the utility model also provides is: a kind of cavity body filter, comprise cavity, be covered in the cover plate on cavity and can and extend into the tuning screw in cavity through cover plate, cover plate is offered screwed hole, it is characterized in that, tuning screw comprises: tuning screw body and can screwing in screwed hole and the facing of suitable engagement with it; One end of tuning screw body has external screw thread, wherein: in the time that screwing into of tuning screw body preset in the screwed hole of facing, external thread rotary twisting presses facing to be fastened in the screwed hole of cover plate.
Wherein, facing has elasticity, and in the time that screwing into of tuning screw body preset in the screwed hole of facing, external screw thread makes facing produce deformation and engage with it.
Wherein, the screwed hole of cover plate is in the time that facing is screwed in wherein, and screwed hole makes facing produce deformation and engage with it.
Wherein, facing is overall cylindrical helicoid.
Wherein, cavity body filter is air chamber fluid filter or dielectric cavity fluid filter.
Cavity body filter provided by the utility model and tuning screw thereof, there is following beneficial effect: the suitable engagement of screwed hole that can have with cover plate due to facing, in the time that screwing into of tuning screw body preset in the screwed hole of facing, external screw thread can screw extruding facing and be fastened in the screwed hole of cover plate, thereby makes tuning screw to be fastened in the screwed hole of cover plate and to be realized self-locking by the frictional force of both sides inside and outside facing.Other assembly structure and link need to be additionally set, save assembly process and assembly cost, further improve efficiency of assembling, and it is tuning to realize the one direction of double-deck filter.
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 the structural representation of the cover plate of the utility model embodiment cavity body filter.
Fig. 2 is the structural representation of the tuning screw body of the utility model embodiment cavity body filter.
Fig. 3 is the structural representation of the facing of the utility model embodiment cavity body filter.
Fig. 4 is the first assembly structure schematic diagram of the tuning screw of the utility model embodiment cavity body filter.
Fig. 5 is the second assembly structure schematic diagram of the tuning screw of the utility model embodiment cavity body filter.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is clearly and completely described, 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 the every other embodiment obtaining under creative work prerequisite, all belong to the scope of the utility model protection.
In conjunction with referring to shown in Fig. 1-Fig. 5, be the embodiment mono-of the utility model cavity body filter.
The tuning screw of the cavity body filter in the present embodiment, be formed in the screwed hole that cavity body filter has cover plate and be fastenedly connected with it in order to be driven into, comprising: tuning screw body 2 and can screwing in the screwed hole 11 that cover plate 1 has and the facing 3 of suitable engagement with it; One end of tuning screw body 2 has external screw thread 21, wherein: in the external screw thread 21 of tuning screw body 2 screws in the screwed hole 11 that presets facing 3 time, external screw thread 21 screws extruding facing 3 and is fastened in the screwed hole 11 of cover plate 1.
As shown in Figure 1, be the structural representation of the cover plate of the utility model embodiment cavity body filter.When concrete enforcement, cover plate 1 can be sealed on the top of the cavity (not shown) of cavity body filter, and cavity body filter can be air chamber fluid filter or dielectric cavity fluid filter.On cover plate 1, have the screwed hole 11 for assembling tuning screw body 2 and facing 3, the mode that screwed hole 11 can carry out tapping by the relevant position at cover plate 1 obtains.
As shown in Figure 2, be the structural representation of the tuning screw body of the utility model embodiment cavity body filter.Tuning screw body 2 comprises the head 2a suitable with facing 3 and in cavity, carries out the tuning 2b of bar portion of radio frequency parameter in order to extend into, wherein: the head 2a of tuning screw body 2 has the external screw thread 21 of preprocessing, external screw thread 21 is in order to be fastenedly connected by extruding facing 3 and the screwed hole 11 of above-mentioned cover plate 1.In the present embodiment, head 2a and the 2b of bar portion of tuning screw body 2 are one-body molded, and it uses metal material to make.
As shown in Figure 3, be the structural representation of the facing of the utility model embodiment cavity body filter.Facing 3 in the present embodiment is to be the cylindrical helicoid of entirety, and this spirochetal section is rounded; Facing 3 uses elastomeric material to make and has certain elasticity, when being assembled in the screwed hole 11 of cover plate 1 or while assembling mutually with tuning screw body 2, it will produce certain deformation, as stretched, thereby make tuning screw body 2 be difficult for skidding, realize the function of self-locking anti-loosing, its concrete assembly structure following detailed description.
Preferably, facing 3 can use has certain flexible metal or nonmetallic materials are made, preferential nylon material or the PE material of adopting, this bi-material not only has certain elasticity, also there is certain rigidity, can ensure the frictional force between facing 3 and screwed hole 11 and external screw thread 21, ensure the reliability connecting.
Further, the internal diameter of the external diameter of facing 3 and cover plate 1 screwed hole 11 is roughly suitable, and it can screw in the screwed hole 11 that is engaged on cover plate 1.As shown in Figure 4, be the first assembly structure schematic diagram of the tuning screw of the utility model embodiment cavity body filter.When concrete enforcement, first facing 3 is screwed in the screwed hole 11 of cover plate 1, because facing 3 has certain elasticity, screwed hole 11 makes facing 3 that elastic deformation occur, its part is stretched along the direction of central axis, between facing 3 and screwed hole 11, produce frictional force, be connected with a joggle in screwed hole 11.After facing 3 is screwed in screwed hole 11, still have part facing 3 not to be stretched in the raw, the inside of this part facing in cavity.
Further, the external diameter of the internal diameter of facing 3 and tuning screw body 2 external screw threads 21 is roughly suitable, and tuning screw body 2 external screw threads 21 can screw extruding facing 3 in the screwed hole 11 of cover plate 1.As shown in Figure 5, be the second assembly structure schematic diagram of the tuning screw of the utility model embodiment cavity body filter.When assembling, the external screw thread of tuning screw body 2 21 is screwed in and preset in the screwed hole 11 of facing 3, along with the continuous screw-in of tuning screw body 2 external screw threads 21, external screw thread 21 pushes facing 3 in the screwed hole 11 of cover plate 1.Now, external screw thread 21 further carries out deformation to the above-mentioned facing 3 in the state that is not naturally stretched, facing 3 can be engaged completely with external screw thread 21, thereby the frictional force that tuning screw can be produced by the inside and outside both sides of facing 3 is fastened on the self-locking that realizes tuning screw body 2 in the screwed hole 11 of cover plate 1.
The assembly structure of the tuning screw of the present embodiment, with respect to the scheme of conventional nut locking, can save the assembly process of nut, more saves space; With respect to the scheme that increases elastic portion at tuning screw head, without the assembly structure that two kinds of different materials parts is assembled into one is additionally set, the difficulty of assembling and the cost of assembling are reduced.Meanwhile, because the contact area of facing and external screw thread and screwed hole is larger, can ensure the reliability of locking, prevent the situations such as slippage is loosening.
The utility model is used for other execution modes of cavity body filter tuning screw: facing can be also the elastomer of other shape except above-mentioned entirety is cylindric helicoid, its section configuration can be triangle, the shapes such as common polygon, be not limited to above-described embodiment, can ensure the frictional force between facing and screwed hole and external screw thread, make it reliable and connect.In addition, the length of facing can be adjusted according to actual conditions, conventionally can engage the screwed hole of cover plate.
The invention also discloses a kind of cavity body filter with above-mentioned tuning screw, its embodiment is identical with the execution mode of above-mentioned tuning screw, repeats no more herein.
Cavity body filter of the present utility model and tuning screw thereof, there is following beneficial effect: the suitable engagement of screwed hole that can have with cover plate due to facing, in the time that screwing into of tuning screw body preset in the screwed hole of facing, external screw thread can screw extruding facing and be fastened in the screwed hole of cover plate, thereby makes tuning screw to be fastened in the screwed hole of cover plate and to be realized self-locking by the frictional force of both sides inside and outside facing; Without other assembly structure and link are additionally set, save assembly process and assembly cost, further improve efficiency of assembling, and it is tuning to realize the one direction of double-deck filter.
Claims (9)
1. the tuning screw for cavity body filter, be formed in the screwed hole that cavity body filter has cover plate and be fastenedly connected with it in order to be driven into, it is characterized in that, comprising: tuning screw body and can screwing in the described screwed hole that described cover plate has and the facing of suitable engagement with it;
One end of described tuning screw body has external screw thread, wherein: in the time screwing in the described screwed hole that presets described facing described in described tuning screw body, described external thread rotary twisting presses described facing to be fastened in the described screwed hole of described cover plate.
2. the tuning screw for cavity body filter as claimed in claim 1, it is characterized in that, described facing has elasticity, and in the time screwing in the described screwed hole that presets described facing described in described tuning screw body, described external screw thread makes described facing produce deformation and engage with it.
3. the tuning screw for cavity body filter as claimed in claim 2, is characterized in that, the described screwed hole of described cover plate is in the time that described facing is screwed in wherein, and described screwed hole makes described facing produce deformation and engage with it.
4. the tuning screw for cavity body filter as described in claim 1-3 any one, is characterized in that, described facing is overall cylindrical helicoid.
5. a cavity body filter, comprise cavity, be covered in the cover plate on described cavity and can and extend into the tuning screw in described cavity through described cover plate, described cover plate is offered screwed hole, it is characterized in that, described tuning screw comprises: tuning screw body and can screwing in described screwed hole and the facing of suitable engagement with it;
One end of described tuning screw body has external screw thread, wherein: in the time screwing in the described screwed hole that presets described facing described in described tuning screw body, described external thread rotary twisting presses described facing to be fastened in the described screwed hole of described cover plate.
6. cavity body filter as claimed in claim 5, it is characterized in that, described facing has elasticity, and in the time screwing in the described screwed hole that presets described facing described in described tuning screw body, described external screw thread makes described facing produce deformation and engage with it.
7. cavity body filter as claimed in claim 6, is characterized in that, the described screwed hole of described cover plate is in the time that described facing is screwed in wherein, and described screwed hole makes described facing produce deformation and engage with it.
8. the cavity body filter as described in claim 5-7 any one, is characterized in that, described facing is overall cylindrical helicoid.
9. cavity body filter as claimed in claim 8, is characterized in that, described cavity body filter is air chamber fluid filter or dielectric cavity fluid filter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420101671.2U CN203826517U (en) | 2014-03-07 | 2014-03-07 | Cavity filter and tuning screw thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420101671.2U CN203826517U (en) | 2014-03-07 | 2014-03-07 | Cavity filter and tuning screw thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203826517U true CN203826517U (en) | 2014-09-10 |
Family
ID=51481984
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420101671.2U Expired - Fee Related CN203826517U (en) | 2014-03-07 | 2014-03-07 | Cavity filter and tuning screw thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203826517U (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 |
| CN105789741A (en) * | 2016-04-25 | 2016-07-20 | 迈特通信设备（苏州）有限公司 | High-precision tuning screw rod device |
| CN106549202A (en) * | 2015-09-23 | 2017-03-29 | 中兴通讯股份有限公司 | A kind of resonator and cavity body filter |
-
2014
- 2014-03-07 CN CN201420101671.2U patent/CN203826517U/en not_active Expired - Fee Related
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 |
| CN106549202A (en) * | 2015-09-23 | 2017-03-29 | 中兴通讯股份有限公司 | A kind of resonator and cavity body filter |
| CN105789741A (en) * | 2016-04-25 | 2016-07-20 | 迈特通信设备（苏州）有限公司 | High-precision tuning screw rod device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203826517U (en) | Cavity filter and tuning screw thereof | |
| CN203548499U (en) | Fastening assembly and vehicle with same | |
| CN210889672U (en) | Never loose nut assembly | |
| CN103644190A (en) | Anti-loose and anti-theft nut | |
| CN108980179B (en) | Anti-loosening screw | |
| CN103682536B (en) | A kind of cavity body filter, tuning screw and Self-locking screw | |
| CN108591228A (en) | A kind of anti-loosen screw nut component and stop nut lock | |
| CN105757095A (en) | Self-locking thread sleeve device | |
| CN103887580A (en) | Cavity filter and tuning screw thereof | |
| CN202545528U (en) | Bidirectional thread safety fastener | |
| CN109707721A (en) | A kind of dedicated firm hexagonal locknut of engineering machinery | |
| CN204828246U (en) | Locking internal thread spare and spiro union device | |
| CN213602096U (en) | Plug connector for anti-falling device | |
| CN206600343U (en) | Combination nut | |
| CN207364078U (en) | A kind of anti-loosening bolt assembly easily assembled | |
| CN209414369U (en) | A kind of new type nut | |
| CN101956749B (en) | Self-tapping screw | |
| CN210978142U (en) | Nut and pre-installation screw connection structure | |
| CN201031847Y (en) | Collapsible locking type screw nail | |
| CN103899630A (en) | Locking nut | |
| CN202165380U (en) | Anti-theft screw with locking gasket | |
| CN110345147B (en) | Effective anti-loosening combined nut | |
| CN201173235Y (en) | Vibration-resistant anti-loose nut with build in elastic ring | |
| CN205371227U (en) | Connect and use locking subassembly | |
| CN217533281U (en) | Split type pull rod device |
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: 20140910 Termination date: 20210307 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |