CN204857353U - Rotary potentiometer convenient to maintenance - Google Patents
Rotary potentiometer convenient to maintenance Download PDFInfo
- Publication number
- CN204857353U CN204857353U CN201520560082.5U CN201520560082U CN204857353U CN 204857353 U CN204857353 U CN 204857353U CN 201520560082 U CN201520560082 U CN 201520560082U CN 204857353 U CN204857353 U CN 204857353U
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- CN
- China
- Prior art keywords
- exhaust vent
- fixed pin
- air inlet
- fresh air
- casing
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- Expired - Fee Related
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Abstract
The utility model discloses a rotary potentiometer convenient to maintenance, include: down casing and last casing, vacuole formation between lower casing and the last casing, cavity internal layout have pivot, electrically conductive revolving fragment, first fixed pin piece, the fixed pin piece of second, move the pin piece and the ARC resistance body, and the fixed pin piece of first fixed pin piece and second is connected respectively at the both ends of the ARC resistance body, and upward the casing is provided with exhaust vent on at least one, be provided with down at least one exhaust vent down on the casing, go up the exhaust vent and correspond from top to bottom with exhaust vent down and set up, go up the casing on the position department relative with last exhaust vent be provided with the fresh air inlet, the position department relative with last exhaust vent is provided with down the fresh air inlet on the lower casing, shown go up the exhaust vent, down the exhaust vent, go up the fresh air inlet and down the fresh air inlet be the screw hole, just pass through the bolt plug for seal. In this way, the utility model has the advantages of simple and reasonable structure, blow through the fresh air inlet, the exhaust vent air -out can be with the light dust, easy maintenance clear away.
Description
Technical field
The utility model relates to potentiometer technical field, particularly relates to a kind of rotational potentiometer being convenient to keep in repair.
Background technology
Potentiometer be there are three exits, resistive element that resistance can regulate by certain Changing Pattern.Potentiometer is made up of resistive element and moveable brush usually.
Potentiometer is installed in the enterprising enforcement use of various equipment, plays regulating action, such as, in stereo set, be used as volume control.Potentiometer after a long time use, because inside enters a small amount of dust, the brouhaha occurring between revolving fragment and resistive element rubbing can be caused, increase the wearing and tearing of resistive element, also can affect the accuracy of adjustment, this is a modal problem of potentiometer maintenance, be all that whole potentiometer is disassembled during general maintenance, then carry out dust out process, cumbersome, maintenance is inconvenient, and after the dismounting of potentiometer all parts again installation can affect the integrally-regulated accurate performance of potentiometer.
Utility model content
The technical problem that the utility model mainly solves is to provide a kind of rotational potentiometer being convenient to keep in repair, simple and reasonable, is dried by fresh air inlet, and exhaust vent air-out namely can light dust out, easy to maintenance.
For solving the problems of the technologies described above, the technical scheme that the utility model adopts is: provide a kind of rotational potentiometer being convenient to keep in repair, comprise: lower house and upper shell, cavity is formed between described lower house and upper shell, described cavity inside is furnished with rotating shaft, conduction revolving fragment, first fixed pin sheet, second fixed pin sheet, dynamic pin sheet and circular arc resistance body, described first fixed pin sheet and the second fixed pin sheet are connected to the two ends of circular arc resistance body, described upper shell is provided with exhaust vent at least one, described lower house is provided with at least one lower exhaust vent, described upper exhaust vent and lower exhaust vent are corresponding up and down to be arranged, position relative with upper exhaust vent on described upper shell is provided with enterprising air holes, position relative with upper exhaust vent on described lower house is provided with lower fresh air inlet, shown upper exhaust vent, lower exhaust vent, enterprising air holes and lower fresh air inlet are screwed hole, and by bolt plug for seal.
In the utility model preferred embodiment, described upper shell is provided with four upper exhaust vents, every two adjacent upper exhaust vents are 10 degree at angle circumferentially.
In the utility model preferred embodiment, described lower house is provided with four lower exhaust vents, every two adjacent lower exhaust vents are 10 degree at angle circumferentially.
In the utility model preferred embodiment, the appearance of described lower house and upper shell is all in square.
In the utility model preferred embodiment, described bolt is all arranged with sealing gasket with upper and lower casing contact site.
The beneficial effects of the utility model are: the utility model is convenient to the rotational potentiometer keeped in repair, simple and reasonable, is dried by fresh air inlet, and exhaust vent air-out namely can light dust out, easy to maintenance.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme in the utility model embodiment, below the accompanying drawing used required in describing embodiment is briefly described, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings, wherein:
Fig. 1 is the structural representation that the utility model is convenient to rotational potentiometer one preferred embodiment of keeping in repair.
In accompanying drawing, the mark of each parts is as follows: 1, lower house, and 2, upper shell, 3, upper exhaust vent, 4, lower exhaust vent, 5, enterprising air holes, 6, lower fresh air inlet.
Embodiment
Be clearly and completely described to the technical scheme in the utility model embodiment below, obviously, described embodiment is only a part of embodiment of the present utility model, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making other embodiments all obtained under creative work prerequisite, all belong to the scope of the utility model protection.
Refer to Fig. 1, the utility model embodiment comprises:
A kind of rotational potentiometer being convenient to keep in repair, comprise: lower house 1 and upper shell 2, cavity is formed between described lower house 1 and upper shell 2, described cavity inside is furnished with rotating shaft, conduction revolving fragment, first fixed pin sheet, second fixed pin sheet, dynamic pin sheet and circular arc resistance body, described first fixed pin sheet and the second fixed pin sheet are connected to the two ends of circular arc resistance body, described upper shell 2 is provided with exhaust vent 3 at least one, described lower house 1 is provided with at least one lower exhaust vent 4, described upper exhaust vent 3 and lower exhaust vent about 4 correspondence are arranged, position relative with upper exhaust vent on described upper shell is provided with enterprising air holes 5, position relative with upper exhaust vent on described lower house is provided with lower fresh air inlet 6, shown upper exhaust vent 3, lower exhaust vent 4, enterprising air holes 5 and lower fresh air inlet 6 are screwed hole, and by bolt plug for seal, when potentiometer needs to keep in repair, open the bolt got lodged on each hole, dried from enterprising air holes 5 and lower fresh air inlet 6 by the compressed air of cleaning, the dust of potentiometer inside is blown afloat, blow out from upper exhaust vent 3 and lower exhaust vent 4 again, thus reach the effect of cleaning potentiometer internal dust, simple and convenient, do not need to dismantle potentiometer, the connection accuracy of potentiometer various components inside can not be affected.
Preferably, described upper shell 2 is provided with four upper exhaust vents 3, every two adjacent upper exhaust vents 3 are 10 degree at angle circumferentially.
Preferably, described lower house 1 is provided with four lower exhaust vents 4, every two adjacent lower exhaust vents 4 are 10 degree at angle circumferentially.
In another embodiment of the present utility model, the appearance of described lower house 1 and upper shell 2 is all in square.
Preferably, described bolt is all arranged with sealing gasket with upper and lower casing contact site, bolt adds that sealing gasket can be stopped dust and enter potentiometer inside from screwed hole.
The beneficial effects of the utility model are: the utility model is convenient to the rotational potentiometer keeped in repair, simple and reasonable, is dried by fresh air inlet, and exhaust vent air-out namely can light dust out, easy to maintenance.
The foregoing is only embodiment of the present utility model; not thereby the scope of the claims of the present utility model is limited; every utilize the utility model description to do equivalent structure or equivalent flow process conversion; or be directly or indirectly used in other relevant technical field, be all in like manner included in scope of patent protection of the present utility model.
Claims (5)
1. be convenient to the rotational potentiometer of maintenance for one kind, it is characterized in that, comprise: lower house and upper shell, cavity is formed between described lower house and upper shell, described cavity inside is furnished with rotating shaft, conduction revolving fragment, first fixed pin sheet, second fixed pin sheet, dynamic pin sheet and circular arc resistance body, described first fixed pin sheet and the second fixed pin sheet are connected to the two ends of circular arc resistance body, described upper shell is provided with exhaust vent at least one, described lower house is provided with at least one lower exhaust vent, described upper exhaust vent and lower exhaust vent are corresponding up and down to be arranged, position relative with upper exhaust vent on described upper shell is provided with enterprising air holes, position relative with upper exhaust vent on described lower house is provided with lower fresh air inlet, shown upper exhaust vent, lower exhaust vent, enterprising air holes and lower fresh air inlet are screwed hole, and by bolt plug for seal.
2. the rotational potentiometer being convenient to keep in repair according to claim 1, is characterized in that, described upper shell is provided with four upper exhaust vents, and every two adjacent upper exhaust vents are 10 degree at angle circumferentially.
3. the rotational potentiometer being convenient to keep in repair according to claim 1, is characterized in that, described lower house is provided with four lower exhaust vents, and every two adjacent lower exhaust vents are 10 degree at angle circumferentially.
4. the rotational potentiometer being convenient to keep in repair according to claim 1, is characterized in that, the appearance of described lower house and upper shell is all in square.
5. the rotational potentiometer being convenient to keep in repair according to claim 4, is characterized in that, described bolt is all arranged with sealing gasket with upper and lower casing contact site.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520560082.5U CN204857353U (en) | 2015-07-30 | 2015-07-30 | Rotary potentiometer convenient to maintenance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520560082.5U CN204857353U (en) | 2015-07-30 | 2015-07-30 | Rotary potentiometer convenient to maintenance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204857353U true CN204857353U (en) | 2015-12-09 |
Family
ID=54747880
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520560082.5U Expired - Fee Related CN204857353U (en) | 2015-07-30 | 2015-07-30 | Rotary potentiometer convenient to maintenance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204857353U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104992804A (en) * | 2015-07-30 | 2015-10-21 | 常州市武进凯利达电子有限公司 | Rotary potentiometer easy for maintenance |
-
2015
- 2015-07-30 CN CN201520560082.5U patent/CN204857353U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104992804A (en) * | 2015-07-30 | 2015-10-21 | 常州市武进凯利达电子有限公司 | Rotary potentiometer easy for maintenance |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151209 Termination date: 20160730 |