CN105322255A - Tuning self-locking bolt - Google Patents
Tuning self-locking bolt Download PDFInfo
- Publication number
- CN105322255A CN105322255A CN201510785070.7A CN201510785070A CN105322255A CN 105322255 A CN105322255 A CN 105322255A CN 201510785070 A CN201510785070 A CN 201510785070A CN 105322255 A CN105322255 A CN 105322255A
- Authority
- CN
- China
- Prior art keywords
- screw
- self
- tuning
- head
- locking
- 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.)
- Granted
Links
Landscapes
- Control Of Motors That Do Not Use Commutators (AREA)
- Connection Of Plates (AREA)
Abstract
The invention discloses a tuning self-locking bolt, which is made of copper. A head part is arranged at one end of the bolt; a rod part is arranged at the other end of the bolt; the rod part extends into a cavity of a filter to tune radio frequency parameters; the head part fixes the self-locking bolt on a cover board of the filter; an accommodating groove which is used for accommodating a screw driver and screwing the tuning bolt into the filter of the cavity according to the drive of the screw driver; two sets of threads are arranged on the head part of the bolt to form screws; the diameters of the screws which are formed by the threads are greater than or equal to M5; the two sets of threads are not connected with each other; the upper thread and the lower thread are the same in diameter L and screw pitch P and generate a displacement in the axis direction; the displacement S is set into the deviation between the original position to which the upper thread extends downwards and the actual position of the lower thread; the size of displacement S is 0.1P to 0.8P; and the diameter of the part between the two threads is 40%-70% that of the rod part. The bolt disclosed by the invention has the advantage of a relatively good self-locking effect.
Description
Technical field
The present invention relates to signal transacting field, particularly relate to a kind of tuning Self-locking screw.
Background technology
Filter is widely used in the communications field as a kind of frequency selection device, especially field of radio frequency communication, in the base station of communication system settling signal transmitting and receiving, filter is used to select signal of communication, the clutter outside filtering communication signal frequency or interference signal.
At present, the signal transacting of cavity body filter has been come by the tuning screw on filter cover board usually, the problem of tuning screw process is the problem of signal intermodulation in general, specifically refer to two different frequency signals, superpose in a certain system and the signal of the new frequency of generation, after adjusting resonance frequency, loosen to prevent above-mentioned tuning screw, usual needs set up a hold-down nut in the part that this tuning screw is positioned at outside cavity, install a hold-down nut in addition additional and not only can expend more material cost, also need to increase extra cost of labor, and the effect using hold-down nut to reinforce in addition is also usually unsatisfactory.
Summary of the invention
The present invention aims to provide a kind of tuning Self-locking screw.
For solving the problems of the technologies described above, the present invention by the following technical solutions, a kind of tuning Self-locking screw, for cavity body filter, be divided into head and bar portion, described Self-locking screw adopts copper to be made, screw one end is head, the other end is bar portion, tuned radio frequency parameter in the cavity that bar portion stretches into filter, Self-locking screw is fixed on the cover plate of filter by head, apical head is provided with for receiving screwdriver and making tuning screw screw in the receiving channel of cavity body filter inside according to the driving of this screwdriver, the head of screw is provided with screw thread and forms screw, this screw thread is provided with two covers, diameter >=the M5 of the screw that screw thread is formed, be not connected between two external threadings, the diameter L of upper and lower two external threadings is identical with pitch P, upper screw thread and lower screw thread can produce a displacement in the axial direction, this displacement S is set as screw thread originally to the deviation that screw position under the position residing for downward-extension and reality produces, the size of described displacement S is 0.1P-0.8P, section diameter between two screw threads is 40%-70% of bar portion diameter.
As preferably, the height of Self-locking screw is 1-20mm.
As preferably, fineness≤0.8 of the copper that Self-locking screw adopts.
As preferably, the spacing between described two screw threads is 0.1-2mm.
As preferably, the copper material making Self-locking screw is H65.
As preferably, receiving channel is interior hexagonal shape, and screw head is evenly distributed with six grooves around the part of receiving channel and extends to receiving channel inside.
Relative to traditional tuning screw, the present invention devises a kind of tuning Self-locking screw newly, the head of screw is provided with screw thread and forms screw, this screw thread is provided with two covers, according to tuning range and the actual user demand of cavity body filter, diameter >=the M5 of the screw that screw thread of the present invention is formed, the Altitude control of corresponding screw is at 1-20mm, two external threadings of the present invention are not connected, because the present invention adopts copper to make screw, copper itself has good conductivity and ductility, the diameter L of two screw threads of the present invention's design is identical with pitch P again, upper screw thread and lower screw thread can produce a displacement in the axial direction, this displacement S is set as screw thread originally to the deviation that screw position under the position residing for downward-extension and reality produces, the size of described displacement S is 0.1P-0.8P, due to the existence of this side-play amount, screwdriver orders about the power that in screw screw-in cavity body filter process, screw head is subject to and is just no longer uniformly distributed, because two screw threads form a slight dislocation, such screwdriver drives screw to screw in screw head in the process of cavity body filter inside can produce slight deformation, because the power that screw head is subject to not is equally distributed, have certain departing from, and the screw thread of two dislocation can produce the cavity that the restoring force recovering original shape props up filter centered by the part between two screw threads after being subject to the extruding force of screwdriver, thus complete the self-locking of screw, simultaneously, consider actual self-locking effect, section diameter between screw thread is 40%-70% of bar portion diameter, because this section diameter has the danger of fracture time narrow, the restoring force of two screw threads has counteracting to a certain extent simultaneously, and this section diameter wide time two screw threads extruding forces of producing inadequate, self-locking DeGrain, in addition, the copper material that the present invention is used for manufacturing screw is H65, neither too hard, nor too soft, its copper content also can meet tuning demand, copper material fineness≤0.8, ensure the coefficient of friction of screw surface and filter cover board, guarantee self-locking effect, tuning effect can not be affected again simultaneously, consider height and the diameter of screw, spacing between two screw threads controls at 0.1-2mm, and the receiving channel of screw head is interior hexagonal shape, screw head is evenly distributed with six grooves around the part of receiving channel and extends to receiving channel inside, the top deformation of the more convenient screw of this shape is to obtain better self-locking effect.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Fig. 2 is the partial enlarged drawing of the embodiment of the present invention;
Fig. 3 is the cutaway view of the embodiment of the present invention.
In figure: 1, head; 2, bar portion; 3, receiving channel; 4, screw thread; 41, upper screw thread; 42, lower screw thread.
Embodiment
Be described below in detail embodiments of the invention, the example of described embodiment is shown in the drawings, and wherein same or similar label represents same or similar element or has element that is identical or similar functions from start to finish.Being exemplary below by the embodiment be described with reference to the drawings, only for explaining the present invention, and can not limitation of the present invention being interpreted as.
In describing the invention, unless otherwise prescribed and limit, it should be noted that, term " installation ", " being connected ", " connection " should be interpreted broadly, such as, can be mechanical connection or electrical connection, also can be the connection of two element internals, can be directly be connected, also indirectly can be connected by intermediary.For the ordinary skill in the art, the concrete meaning of above-mentioned term can be understood as the case may be.
Describe according to the tuning Self-locking screw of the one of the embodiment of the present invention referring to Fig. 1 to Fig. 3, for cavity body filter, be divided into head 1 and bar portion 2, described Self-locking screw adopts copper to be made, screw one end is head 1, the other end is bar portion 2, tuned radio frequency parameter in the cavity that bar portion 2 stretches into filter, Self-locking screw is fixed on the cover plate of filter by head 1, head 1 top is provided with for receiving screwdriver and making tuning screw screw in the receiving channel 4 of cavity body filter inside according to the driving of this screwdriver, the head 1 of screw is provided with screw thread 3 and forms screw, this screw thread 3 is provided with two covers, diameter >=the M5 of the screw that screw thread 3 is formed, be not connected between two external threadings 4, the diameter L of upper and lower two external threadings 3 is identical with pitch P, upper screw thread 41 can produce a displacement in the axial direction with lower screw thread 42, this displacement S is set as the deviation that screw thread 41 originally produced to screw thread 42 position under the position residing for downward-extension and reality, the size of described displacement S is 0.1P-0.8P, section diameter between two screw threads 4 is 40%-70% of bar portion diameter.
As preferably, the height of Self-locking screw is 1-20mm.
As preferably, fineness≤0.8 of the copper that Self-locking screw adopts.
As preferably, the spacing between described two screw threads 4 is 0.1-2mm.
As preferably, the copper material making Self-locking screw is H65.
As preferably, receiving channel is interior hexagonal shape, and screw head is evenly distributed with six grooves around the part of receiving channel and extends to receiving channel inside.
Relative to traditional tuning screw, the present invention devises a kind of tuning Self-locking screw newly, the head of screw is provided with screw thread and forms screw, this screw thread is provided with two covers, according to tuning range and the actual user demand of cavity body filter, diameter >=the M5 of the screw that screw thread of the present invention is formed, the Altitude control of corresponding screw is at 1-20mm, two external threadings of the present invention are not connected, because the present invention adopts copper to make screw, copper itself has good conductivity and ductility, the diameter L of two screw threads of the present invention's design is identical with pitch P again, upper screw thread and lower screw thread can produce a displacement in the axial direction, this displacement S is set as screw thread originally to the deviation that screw position under the position residing for downward-extension and reality produces, the size of described displacement S is 0.1P-0.8P, due to the existence of this side-play amount, screwdriver orders about the power that in screw screw-in cavity body filter process, screw head is subject to and is just no longer uniformly distributed, because two screw threads form a slight dislocation, such screwdriver drives screw to screw in screw head in the process of cavity body filter inside can produce slight deformation, because the power that screw head is subject to not is equally distributed, have certain departing from, and the screw thread of two dislocation can produce the cavity that the restoring force recovering original shape props up filter centered by the part between two screw threads after being subject to the extruding force of screwdriver, thus complete the self-locking of screw, simultaneously, consider actual self-locking effect, section diameter between screw thread is 40%-70% of bar portion diameter, because this section diameter has the danger of fracture time narrow, the restoring force of two screw threads has counteracting to a certain extent simultaneously, and this section diameter wide time two screw threads extruding forces of producing inadequate, self-locking DeGrain, in addition, the copper material that the present invention is used for manufacturing screw is H65, neither too hard, nor too soft, its copper content also can meet tuning demand, copper material fineness≤0.8, ensure the coefficient of friction of screw surface and filter cover board, guarantee self-locking effect, tuning effect can not be affected again simultaneously, consider height and the diameter of screw, spacing between two screw threads controls at 0.1-2mm.
In the description of this specification, specific features, structure, material or feature that the description of reference term " embodiment ", " example " or " some examples " etc. means to describe in conjunction with this embodiment or example are contained at least one embodiment of the present invention or example.In this manual, identical embodiment or example are not necessarily referred to the schematic representation of above-mentioned term.And the specific features of description, structure, material or feature can combine in an appropriate manner in any one or more embodiment or example.
Although illustrate and describe embodiments of the invention, those having ordinary skill in the art will appreciate that: can carry out multiple change, amendment, replacement and modification to these embodiments when not departing from principle of the present invention and aim, scope of the present invention is by claim and equivalents thereof.
Claims (6)
1. a tuning Self-locking screw, for cavity body filter, be divided into head and bar portion, it is characterized in that, described Self-locking screw adopts copper to be made, screw one end is head, the other end is bar portion, tuned radio frequency parameter in the cavity that bar portion stretches into filter, Self-locking screw is fixed on the cover plate of filter by head, apical head is provided with for receiving screwdriver and making tuning screw screw in the receiving channel of cavity body filter inside according to the driving of this screwdriver, the head of screw is provided with screw thread and forms screw, this screw thread is provided with two covers, diameter >=the M5 of the screw that screw thread is formed, be not connected between two external threadings, the diameter L of upper and lower two external threadings is identical with pitch P, upper screw thread and lower screw thread can produce a displacement in the axial direction, this displacement S is set as screw thread originally to the deviation that screw position under the position residing for downward-extension and reality produces, the size of described displacement S is 0.1P-0.8P, section diameter between two screw threads is 40%-70% of bar portion diameter.
2. tuning Self-locking screw according to claim 1, is characterized in that, the height of Self-locking screw is 1-20mm.
3. tuning Self-locking screw according to claim 1, is characterized in that, fineness≤0.8 of the copper that Self-locking screw adopts.
4. the tuning Self-locking screw according to Claims 2 or 3, is characterized in that, the spacing between described two screw threads is 0.1-2mm.
5. tuning Self-locking screw according to claim 1, is characterized in that, the copper material making Self-locking screw is H65.
6. tuning Self-locking screw according to claim 1, is characterized in that, receiving channel is interior hexagonal shape, and screw head is evenly distributed with six grooves around the part of receiving channel and extends to receiving channel inside.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510785070.7A CN105322255B (en) | 2015-11-17 | 2015-11-17 | One kind tuning Self-locking screw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510785070.7A CN105322255B (en) | 2015-11-17 | 2015-11-17 | One kind tuning Self-locking screw |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105322255A true CN105322255A (en) | 2016-02-10 |
| CN105322255B CN105322255B (en) | 2018-05-11 |
Family
ID=55249180
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510785070.7A Active CN105322255B (en) | 2015-11-17 | 2015-11-17 | One kind tuning Self-locking screw |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105322255B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105927650A (en) * | 2016-06-29 | 2016-09-07 | 王辉 | Tuning self-locking screw rod for radio frequency device and manufacture method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1435579A (en) * | 2002-02-01 | 2003-08-13 | 名川政人 | Fastener structure, bolt and nut with said structure and making method thereof |
| KR101277824B1 (en) * | 2012-03-22 | 2013-06-21 | 주식회사 에이스테크놀로지 | Waveguide filter |
| CN103682536A (en) * | 2012-09-13 | 2014-03-26 | 深圳市大富科技股份有限公司 | Cavity filter, tuning screw and self-locking screw |
| CN205159477U (en) * | 2015-11-17 | 2016-04-13 | 强胜精密机械(苏州)有限公司 | Harmonious auto -lock screw |
-
2015
- 2015-11-17 CN CN201510785070.7A patent/CN105322255B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1435579A (en) * | 2002-02-01 | 2003-08-13 | 名川政人 | Fastener structure, bolt and nut with said structure and making method thereof |
| KR101277824B1 (en) * | 2012-03-22 | 2013-06-21 | 주식회사 에이스테크놀로지 | Waveguide filter |
| CN103682536A (en) * | 2012-09-13 | 2014-03-26 | 深圳市大富科技股份有限公司 | Cavity filter, tuning screw and self-locking screw |
| CN205159477U (en) * | 2015-11-17 | 2016-04-13 | 强胜精密机械(苏州)有限公司 | Harmonious auto -lock screw |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105927650A (en) * | 2016-06-29 | 2016-09-07 | 王辉 | Tuning self-locking screw rod for radio frequency device and manufacture method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105322255B (en) | 2018-05-11 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105304990A (en) | Tuning self-locking bolt | |
| CN105382488A (en) | Manufacturing method for tuning self-locking screw | |
| CN105322255A (en) | Tuning self-locking bolt | |
| CN105304987A (en) | Cavity filter | |
| CN205159477U (en) | Harmonious auto -lock screw | |
| CN103650237B (en) | A kind of filter tuning apparatus and filter | |
| CN205376699U (en) | Harmonious auto -lock screw | |
| CN103682536B (en) | A kind of cavity body filter, tuning screw and Self-locking screw | |
| CN102361116B (en) | Cavity filter and cavity filter cover plate | |
| CN101922495B (en) | Screw device and cavity filter using same | |
| CN202628740U (en) | Screw device | |
| CN205376700U (en) | Cavity filter | |
| CN201593546U (en) | Self-locking flare-in nut | |
| CN204437027U (en) | A kind of self-locking nut and communication radio frequency and microwave device | |
| CN101944662A (en) | Fixture with at least one hold-down screw that can not lose | |
| CN105304988B (en) | A kind of cavity body filter | |
| CN105304989A (en) | Cavity filter | |
| CN105563019A (en) | Manufacturing method of tuning self-locking screw | |
| CN203548490U (en) | Hexagonal head bolt preventing thread stripping | |
| CN206017368U (en) | Microwave waveguide flange quick assembling pin | |
| CN102094882A (en) | Flanging and riveting self-locking nut | |
| CN204437028U (en) | A kind of nut and communication radio frequency and microwave device | |
| CN204558628U (en) | Cavity filter | |
| CN201383857Y (en) | Double-ported feed disc | |
| CN204104243U (en) | A kind of elastic locking device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |