CN104037015A - Pneumatic switch - Google Patents
Pneumatic switch Download PDFInfo
- Publication number
- CN104037015A CN104037015A CN201310080969.XA CN201310080969A CN104037015A CN 104037015 A CN104037015 A CN 104037015A CN 201310080969 A CN201310080969 A CN 201310080969A CN 104037015 A CN104037015 A CN 104037015A
- Authority
- CN
- China
- Prior art keywords
- housing
- filter screen
- switch
- pneumatic switch
- installing hole
- 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
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- Switches Operated By Changes In Physical Conditions (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention discloses a pneumatic switch. The pneumatic switch comprises a housing and a switch assembly. The housing is provided with an installation hole, and the air inlet end of the housing is provided with a filter screen installation hole for installing a filter screen. The switch assembly comprises a wind sensing sheet which is arranged at the side of the air inlet at the upper end of the central position of the housing and is hinged through a pin, and an installation support which is arranged at the upper end of the housing at the inner sides of the wind sensing sheets and has an adjustable inclination angle with the vertical axis of the housing. A proximity switch is arranged on the installation support, and the proximity switch is connected with the control circuit of a load through a signal line. The advantages are as follows: the installation is convenient, the sensitivity is high and adjustable, the pneumatic switch can satisfy the demand for application in complex environments such as a sea, a desert, a mine and the like, the cost is low, and the stability is good.
Description
Technical field
The present invention relates to electric component technical field, particularly relate to a kind of pneumatic switch.
Background technology
Having in the market pressure switch, is to respond to by pressure size, and environment for use is had to very large restriction.On desert, use, dust is excessive, easily stops up; After not working for a long time or use more than 1 year, pressure switch is often malfunctioning; On harbour, use by the sea, because seashore air quantity is excessive and often produce pressure switch misoperation; Dry type loads on the very not convenient of setting pressure switch, can only be arranged on blower fan air-out position or resistance region, if blower fan stops because of fault, internal temperature can reach 500 ℃, is easy to cause pressure switch to damage; Pressure switch is expensive simultaneously.
Summary of the invention
In order to overcome above-mentioned the deficiencies in the prior art, the invention provides a kind of easy for installation, highly sensitive pneumatic switch.
The technical solution adopted in the present invention is: a kind of pneumatic switch, comprise housing and switch module, described housing is provided with installing hole, the air intake place of housing is provided with filter screen installing hole for filter screen is installed, switch module comprises that air inlet one side in housing medium position upper end arranges passes through the hinged sense wind sheet of bearing pin, the mounting bracket adjustable with housing vertical axis angle of inclination that the housing upper end of sense wind sheet inner side arranges, on mounting bracket, settle approach switch, approach switch connects the control circuit of load by holding wire.
As preferably, described filter screen is fixed by bolt and housing filter screen installing hole.
As preferably, the wire netting that described filter screen is 5*5mm.
As preferably, described pneumatic switch integral body is fixed on fan supporter by housing installing hole.
As preferably, the adjustable extent at described angle of inclination is 3-45 degree.
As preferably, described housing surrounding sealing.
Compared with prior art, the invention has the beneficial effects as follows: easy for installation, highly sensitive and adjustable, can meet at sea desert, application and cheap in the complex environments such as mine, good stability.
Accompanying drawing explanation
Fig. 1 is structure chart of the present invention;
Fig. 2 is air inlet direction view of the present invention;
Fig. 3 is that the A-A of Fig. 2 of the present invention is to view.
In figure: 1. housing, 2. installing hole, 3. filter screen installing hole, 4. filter screen, 5. approach switch, 6. bearing pin, 7. sense wind sheet, 8. mounting bracket, 9. holding wire.
Embodiment
In order more clearly to understand technical scheme of the present invention, below in conjunction with accompanying drawing, the present invention is further described.
A kind of pneumatic switch as shown in Figure 1, Figure 2, Figure 3 shows, comprises housing 1 and switch module, and the 1 surrounding sealing of described housing, prevents that wind direction is by the sea unstable, sense wind sheet is blown and allows pneumatic incorrect switching, housing 1 is provided with installing hole 2, the air intake place of housing 1 is provided with filter screen installing hole 3 for filter screen 4 is installed, described filter screen is the wire netting of 5*5mm, can stop that all are greater than the foreign material of 5*5, tiny foreign material can directly directly pass from blower fan is heavy, load is had no effect, switch module comprises that housing 1 medium position upper end air inlet one side arranges passes through the hinged sense wind sheet 7 of bearing pin 6, the mounting bracket 8 adjustable with housing vertical axis angle of inclination that housing 1 upper end of sense wind sheet 7 inner sides arranges, the adjustable extent at described angle of inclination is 3-45 degree, the difference of angle is the sensitivity difference of switch, on mounting bracket 8, settle approach switch 5, approach switch connects the control circuit of load by holding wire 9, described pneumatic switch integral body is fixed on fan supporter by housing installing hole.
When dry type load fan starting, flabellum rotates will produce suction, and suction is felt wind sector-meeting action time certain, close to approach switch.When sense wind sheet is against approach switch, approach switch is closed, sends a signal to load, determines that blower fan starts, and load can load; On the contrary, when load stops or blower fan breaks down and stops, the suction of blower fan is inadequate; sense wind sheet is because conduct oneself with dignity automatic sagging reset, and approach switch just sends a signal to load, and blower fan stops; according to actual requirement, load is reported to the police or unloading, and load is carried out to first protection.
The above is only better embodiment of the present invention, and the equivalence of doing according to structure, feature and principle described in patent claim of the present invention therefore all changes or modifies, and is included in patent claim of the present invention.
Claims (6)
1. a pneumatic switch, it is characterized in that: comprise housing and switch module, described housing is provided with installing hole, the air intake place of housing is provided with filter screen installing hole for filter screen is installed, switch module comprises that air inlet one side in housing medium position upper end arranges passes through the hinged sense wind sheet of bearing pin, the mounting bracket adjustable with housing vertical axis angle of inclination that the housing upper end of sense wind sheet inner side arranges, settles approach switch on mounting bracket, approach switch connects the control circuit of load by holding wire.
2. pneumatic switch according to claim 1, is characterized in that: described filter screen is fixed by bolt and housing filter screen installing hole.
3. pneumatic switch according to claim 2, is characterized in that: the wire netting that described filter screen is 5*5mm.
4. pneumatic switch according to claim 1, is characterized in that: described pneumatic switch integral body is fixed on fan supporter by housing installing hole.
5. pneumatic switch according to claim 1, is characterized in that: the adjustable extent at described angle of inclination is 3-45 degree.
6. pneumatic switch according to claim 1, is characterized in that: described housing surrounding sealing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310080969.XA CN104037015B (en) | 2013-03-08 | 2013-03-08 | A kind of pneumatic switch and the method using a pneumatic switch protection fans load |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310080969.XA CN104037015B (en) | 2013-03-08 | 2013-03-08 | A kind of pneumatic switch and the method using a pneumatic switch protection fans load |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104037015A true CN104037015A (en) | 2014-09-10 |
| CN104037015B CN104037015B (en) | 2018-10-23 |
Family
ID=51467750
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310080969.XA Expired - Fee Related CN104037015B (en) | 2013-03-08 | 2013-03-08 | A kind of pneumatic switch and the method using a pneumatic switch protection fans load |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104037015B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2717001Y (en) * | 2004-03-23 | 2005-08-10 | 北京吉思电气有限公司 | Gravity assistance type air pressure relay |
| CN101413702A (en) * | 2008-12-01 | 2009-04-22 | 傅国红 | Pneumatic switch components of warmer |
| JP2010049949A (en) * | 2008-08-22 | 2010-03-04 | Yamamoto Denki Seisakusho:Kk | Fine differential pressure switch device |
| CN201522962U (en) * | 2009-09-28 | 2010-07-07 | 潍坊勤毅电子科技有限公司 | Normally open airflow sensitive switch |
| CN102420076A (en) * | 2010-09-27 | 2012-04-18 | 上海太阳能科技有限公司 | Turning plate type air speed switch |
-
2013
- 2013-03-08 CN CN201310080969.XA patent/CN104037015B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2717001Y (en) * | 2004-03-23 | 2005-08-10 | 北京吉思电气有限公司 | Gravity assistance type air pressure relay |
| JP2010049949A (en) * | 2008-08-22 | 2010-03-04 | Yamamoto Denki Seisakusho:Kk | Fine differential pressure switch device |
| CN101413702A (en) * | 2008-12-01 | 2009-04-22 | 傅国红 | Pneumatic switch components of warmer |
| CN201522962U (en) * | 2009-09-28 | 2010-07-07 | 潍坊勤毅电子科技有限公司 | Normally open airflow sensitive switch |
| CN102420076A (en) * | 2010-09-27 | 2012-04-18 | 上海太阳能科技有限公司 | Turning plate type air speed switch |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104037015B (en) | 2018-10-23 |
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Legal Events
| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| EXSB | Decision made by sipo to initiate substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| DD01 | Delivery of document by public notice |
Addressee: Patent director of Shanghai Junjie automation equipment Co., Ltd Document name: Notice of termination of patent |
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| DD01 | Delivery of document by public notice | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20181023 Termination date: 20200308 |
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| CF01 | Termination of patent right due to non-payment of annual fee |