CN205315443U - Tuning screw device - Google Patents
Tuning screw device Download PDFInfo
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- CN205315443U CN205315443U CN201620052545.1U CN201620052545U CN205315443U CN 205315443 U CN205315443 U CN 205315443U CN 201620052545 U CN201620052545 U CN 201620052545U CN 205315443 U CN205315443 U CN 205315443U
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- tuning screw
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Abstract
The utility model relates to a waveguide cavity filter technical field in the microwave receiving and dispatching system, but specifically the auto -lock tuning screw device who relates to a clamping orient. This tuning screw device includes tuning screw, mounting panel, be equipped with on the mounting panel with tuning screw realizes screw -thread fit's mounting hole, tuning screw's axial with the face of mounting panel is perpendicular, be equipped with between mounting hole and the tuning screw and carry out the direction bush that restricts in produced radially the rocking of axial motion in -process to tuning screw. The utility model discloses well tuning screw is when debugging, and the tip passes the direction bush before the tuning screw, through increasing the direction bush, can be to tuning screw producedly during at the in -process that stretches into the waveguide cavity because with mounting hole screw -thread fit radially rocks the effect of playing the restriction, avoids tuning screw to take place to rock by a wide margin, has further guaranteed the stability at debugging in -process waveguide cavity filter's microwave signal frequency.
Description
Technical field
The utility model relates to wave-guide cavity wave filter technical field in microwave transmitting and receiving system, specifically relate to a kind of can the tuning screw device of self-locking of positioning and guiding.
Background technology
Wave-guide cavity wave filter is in microwave transmitting and receiving system a important devices, carries the undesired signal beyond filtering desired signal frequency, play the function of gating signal in microwave transmitting and receiving system.
In above-mentioned wave-guide cavity wave filter, often needing to arrange a lot of tuning screw, these screws are deep into the inner index for debugging radio frequency signal of cavity body filter by cover plate or sidewall, change by the frequency of cavity signal. In the process using tuning screw tuning, the verticality of tuning screw and cover plate or sidewall should be ensured as far as possible, ensure the stability of signal frequency in debug process. But always there is tolerance in size in machining process, gap more or less will be there is like this in the engagement process of stud and screw, therefore in the process using the debugging of tuning screw, screw will wave diametrically and stretch into inside cavity with rocking, and causes the left and right of microwave signal frequency in debug process to drift about.
Summary of the invention
For solving the problems of the technologies described above, the utility model provides a kind of tuning screw device, the device avoids the problem that traditional tuning screw rolls in the debug phase, has certain positioning and guiding function.
For achieving the above object, the utility model have employed following technical scheme:
A kind of tuning screw device, comprise tuning screw, mounting plate, described mounting plate is provided with the open holes realizing thread fit with described tuning screw, the axis of described tuning screw is vertical with the plate face of described mounting plate, is provided with the radial direction produced in axial movement by tuning screw and rocks the guiding lining limited between described open holes and tuning screw.
Further technical scheme, described tuning screw comprises the threaded post with described mounting plate thread fit and is positioned at described threaded post front end and the tuning post that is connected with threaded post, the radial dimension of described tuning post is less than the radial dimension of threaded post, described open holes comprises the first threaded hole coordinated with described threaded post and is connected with described first threaded hole for the first through hole that described tuning post passes through, the diameter of described first through hole is less than the diameter of the first threaded hole, and the junction of described first threaded hole itself and the first through hole is provided with described guiding lining.
Further technical scheme, the body of described threaded post is provided with the 2nd threaded hole realizing thread fit with trip bolt, the axis of described 2nd threaded hole deviates the axis of described threaded post and parallel with the axis of described threaded post, described threaded post side is provided with open slot, the cell wall of described open slot is axial vertical with described threaded post, and described 2nd threaded hole is by the cell wall of through to the described open slot of aft end face of described threaded post and communicates with described open slot.
Further technical scheme, described guiding lining is made up of the lasso of cylinder shape, described guiding lining comprises for the 2nd through hole that tuning post passes through, described 2nd through hole forms chamfering structure by hole inwall to nose end away from one end of the first through hole, and described guiding lining is made up of polytetrafluoroethylmaterial material.
Further technical scheme, described threaded post aft end face is provided with and facilitates tuning yi word pattern regulating tank.
Further technical scheme, the end of described trip bolt is provided with the convenient yi word pattern binding groove implementing fastening action.
Further technical scheme, the leading section of described tuning post is sphere structure.
The beneficial effects of the utility model are mainly reflected in the following aspects:
(1) in the utility model tuning screw when debugging, tuning screw leading section is through guiding lining, by increasing guiding lining, can to tuning screw in the process extending into wave-guide cavity wave owing to rocking, with the radial direction produced during open holes thread fit, the effect playing restriction, avoid tuning screw generation large-amplitude sloshing, further ensure that the stable of the microwave signal frequency of wave-guide cavity wave filter in debug process.
(2) trip bolt described in the utility model screws in the 2nd threaded hole from the aft end face of threaded post, and the side cell wall of trip bolt through open slot can be screwed into always, screw in further and realize the front end face of trip bolt and the laminating of another side cell wall of open slot. Namely after the debugging of tuning screw terminates, the front end face of trip bolt is allowed to press the cell wall of open slot, cause the threaded post of tuning screw that small elasticity distortion occurs, make the threaded post section being positioned at open slot top tight with the laminating that is threaded of the first threaded hole, prevent tuning screw pine de-, reach the object of self-locking. Owing to trip bolt is the inside in threaded post, do not take any space beyond tuning screw, avoid tuning screw in tradition structure tight because arranging, the problem that set nut cannot operate.
(3) by the setting of guiding lining, trip bolt and open slot in the utility model, avoided the problem of the tolerance clearance that screw thread process tolerance causes, thus reduced the requirement of double thread dimensional precision in the course of processing, reduced difficulty of processing.
(4) the lining arrange accordingly that leads in the utility model chamfering structure, this be tuning post just touched guiding lining time provide the effect led in advance. Guiding lining is made up of polytetrafluoroethylmaterial material, and the process that this material is moved at tuning screw axial can not cause strong fricting movement with tuning screw, ensure that the dimensional precision of tuning post.
(5) regulating tank described in the utility model is convenient implements adjustment action to tuning screw; Described binding groove is all convenient implements fastening action to trip bolt.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is guiding bush structure schematic diagram.
Fig. 3 is tuning bolt structure schematic diagram.
Fig. 4 is the vertical view of Fig. 3.
Fig. 5 is locking screw structural representation.
Fig. 6 is mounting plates structure schematic diagram.
Fig. 7 is the position view of locking screw in debug process.
Fig. 8 is the position view under locking screw locking state.
In accompanying drawing, the implication of mark is as follows:
1-tuning screw 101-threaded post 102-tuning post 103-the 2nd threaded hole
104-open slot 105-regulating tank 2-trip bolt 201-binding groove 3-mounting plate
301-first threaded hole 302-first through hole 4-leads lining 401-chamfering structure
402-the 2nd through hole
Embodiment
Now it is described with reference to the accompanying drawings constructional feature of the present utility model:
The utility model comprises tuning screw 1, mounting plate 3, described mounting plate 3 is provided with the open holes realizing thread fit with described tuning screw 1, the axis of described tuning screw 1 is vertical with the plate face of described mounting plate 3, is provided with the radial direction produced in axial movement by tuning screw 1 and rocks the guiding lining 4 limited between described open holes and tuning screw 1.Described guiding lining 4 is arranged on the hole wall of described open holes, tuning screw 1 passes guiding lining 4 when axial motion, tuning like this screw 1 is with the thread fit process of mounting plate 3, guiding lining 4 can to tuning screw 1 diametrically rock the effect playing restriction, usually by having, certain elastic material is formed guiding lining 4.
Specifically structure: described tuning screw 1 comprises and the threaded post 101 of described mounting plate 3 thread fit, and it is positioned at described threaded post 101 front end and the tuning post 102 that is connected with threaded post 101, the radial dimension of described tuning post 102 is less than the radial dimension of threaded post 101, described open holes comprises the first threaded hole 301 coordinated with described threaded post, and it is connected for the first through hole 302 that described tuning post 102 passes through with described first threaded hole 301, the diameter of described first through hole 302 is less than the diameter of the first threaded hole 301, the junction of described first threaded hole 301 itself and the first through hole 302 is provided with described guiding lining 4. by technique scheme, the tuning screw 1 of the utility model is when debugging, the leading section of tuning post 102 is through guiding lining 4, by increasing guiding lining 4, tuning screw 1 can be rocked the effect playing restriction extending into the radial direction produced in the process of wave-guide cavity wave, avoid tuning post 102 that large-amplitude sloshing occurs, further ensure that the stable of the microwave signal frequency of wave-guide cavity wave filter in debug process.
Owing to traditional tuning screw is after debugging terminates, tuning screw must be locked, final required frequency signal is made to keep stable, and traditional tuning screw is made up of tuning screw, set nut and packing ring often, this kind of tuning screw needs to take certain space outside the cover plate of wave-guide cavity wave filter or outside sidewall, if encountering tuning screw arrangement to compare situation closely, the use of set nut just is difficult to operate so that set nut loses the effect of locking. and tuning screw 1 is locked the locking mechanism adopted and is by the utility model: the body of described threaded post 101 is provided with the 2nd threaded hole 103 realizing thread fit with trip bolt 2, the axis of described 2nd threaded hole 103 deviates the axis of described threaded post 101 and parallel with the axis of described threaded post 101, described threaded post 101 side is provided with open slot 104, the cell wall of described open slot 104 is axial vertical with described threaded post 101, described 2nd threaded hole 103 is by the cell wall of through to the described open slot of aft end face 104 of described threaded post 101 and communicates with described open slot 104. trip bolt 2 described in this structure screws in the 2nd threaded hole 103 from the aft end face of threaded post 101, and the side cell wall of trip bolt 2 through open slot 104 can be screwed into always, screw in further and realize the front end face of trip bolt 2 and the laminating of another side cell wall of open slot 104. namely after the debugging of tuning screw 1 terminates, the front end face of trip bolt 2 is allowed to press the cell wall of open slot 104, cause the threaded post 101 of tuning screw 1 that small elasticity distortion occurs, make the threaded post section being positioned at open slot 104 top tight with the laminating that is threaded of the first threaded hole 301, prevent tuning screw 1 pine de-, reach the object of self-locking. owing to trip bolt 2 is in the inside of threaded post 101, do not take any space beyond tuning screw 1, avoid tuning screw in tradition structure tight because arranging, the problem that set nut cannot operate.This structure makes bulk strength higher in addition.
Described guiding lining 4 is made up of the lasso of cylinder shape, described guiding lining comprises for the 2nd through hole 402 that tuning post 102 passes through, described 2nd through hole 402 forms chamfering structure 401 by hole inwall to nose end away from one end of the first through hole 302, the periphery of this guiding lining 4 coordinates with the first threaded hole 301 small?gap suture, the hole wall of described 2nd through hole 402 coordinates with the periphery small?gap suture of described tuning post 102, lining 4 arrange accordingly that leads in the utility model chamfering structure 401, this be tuning post 102 just touched guiding lining 4 time provide the effect led in advance. Guiding lining 4 is made up of polytetrafluoroethylmaterial material, and this material can not cause strong fricting movement with tuning screw 1 in the process of tuning screw 1 axial motion, ensure that the dimensional precision of tuning post 102.
The leading section of described tuning post 102 be sphere structure be more convenient for described tuning post 102 smoothly stretch into guiding lining 4 in, have auxiliary positioning guiding effect.
Claims (7)
1. a tuning screw device, it is characterized in that: comprise tuning screw (1), mounting plate (3), described mounting plate (3) is provided with the open holes realizing thread fit with described tuning screw (1), the axis of described tuning screw (1) is vertical with the plate face of described mounting plate (3), is provided with the radial direction produced in axial movement by tuning screw (1) and rocks the guiding lining (4) limited between described open holes and tuning screw (1).
2. tuning screw device as claimed in claim 1, it is characterized in that: described tuning screw (1) comprises the threaded post (101) with described mounting plate (3) thread fit, and it is positioned at described threaded post (101) front end and the tuning post (102) that is connected with threaded post (101), the radial dimension of described tuning post (102) is less than the radial dimension of threaded post (101), described open holes comprises the first threaded hole (301) coordinated with described threaded post (101), and it is connected for the first through hole (302) that described tuning post (102) is passed through with described first threaded hole (301), the diameter of described first through hole (302) is less than the diameter of the first threaded hole (301), the junction of described first threaded hole (301) itself and the first through hole (302) is provided with described guiding lining (4).
3. tuning screw device as claimed in claim 2, it is characterized in that: the body of described threaded post (101) is provided with the 2nd threaded hole (103) realizing thread fit with trip bolt (2), the axis of described 2nd threaded hole (103) deviates the axis of described threaded post (101) and parallel with the axis of described threaded post (101), described threaded post (101) side is provided with open slot (104), the cell wall of described open slot (104) is axial vertical with described threaded post (101), described 2nd threaded hole (103) is by the cell wall of through to the described open slot of the aft end face (104) of described threaded post (101) and communicates with described open slot (104).
4. tuning screw device as claimed in claim 2, it is characterized in that: described guiding lining (4) is made up of the lasso of cylinder shape, described guiding lining comprises for the 2nd through hole (402) that tuning post (102) passes through, described 2nd through hole (402) forms chamfering structure (401) by hole inwall to nose end away from one end of the first through hole (302), and described guiding lining (4) is made up of polytetrafluoroethylmaterial material.
5. tuning screw device as claimed in claim 2, it is characterised in that: described threaded post (101) aft end face is provided with and facilitates tuning yi word pattern regulating tank (105).
6. tuning screw device as claimed in claim 3, it is characterised in that: the end of described trip bolt (2) is provided with the convenient yi word pattern binding groove (201) implementing fastening action.
7. tuning screw device as described in item as arbitrary in claim 2-6, it is characterised in that: the leading section of described tuning post (102) is sphere structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620052545.1U CN205315443U (en) | 2016-01-19 | 2016-01-19 | Tuning screw device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620052545.1U CN205315443U (en) | 2016-01-19 | 2016-01-19 | Tuning screw device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205315443U true CN205315443U (en) | 2016-06-15 |
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ID=56205560
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620052545.1U Active CN205315443U (en) | 2016-01-19 | 2016-01-19 | Tuning screw device |
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| CN (1) | CN205315443U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107676591A (en) * | 2017-11-23 | 2018-02-09 | 镇江华京通讯科技有限公司 | A kind of fixed mount for welding radio frequency (RF) coaxial connector |
| CN107910619A (en) * | 2017-11-08 | 2018-04-13 | 东莞以利沙五金制品有限公司 | Tuning screw device and its assemble method |
| CN110834173A (en) * | 2019-11-15 | 2020-02-25 | 格力电器（武汉）有限公司 | Copper filter location frock |
-
2016
- 2016-01-19 CN CN201620052545.1U patent/CN205315443U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107910619A (en) * | 2017-11-08 | 2018-04-13 | 东莞以利沙五金制品有限公司 | Tuning screw device and its assemble method |
| CN107910619B (en) * | 2017-11-08 | 2023-03-10 | 东莞以利沙五金制品有限公司 | Tuning screw device and assembling method thereof |
| CN107676591A (en) * | 2017-11-23 | 2018-02-09 | 镇江华京通讯科技有限公司 | A kind of fixed mount for welding radio frequency (RF) coaxial connector |
| CN110834173A (en) * | 2019-11-15 | 2020-02-25 | 格力电器（武汉）有限公司 | Copper filter location frock |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |