CN202772043U - Pneumatic switch - Google Patents
Pneumatic switch Download PDFInfo
- Publication number
- CN202772043U CN202772043U CN 201220494530 CN201220494530U CN202772043U CN 202772043 U CN202772043 U CN 202772043U CN 201220494530 CN201220494530 CN 201220494530 CN 201220494530 U CN201220494530 U CN 201220494530U CN 202772043 U CN202772043 U CN 202772043U
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- CN
- China
- Prior art keywords
- pedestal
- spring
- set screw
- end cap
- screw
- 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
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Abstract
The utility model discloses a pneumatic switch comprising a base and an end cover. The base and the end cover are fixedly connected and form a sealed gas chamber. A film is arranged between the base and the end cover. The gas chamber between the base and the end cover is divided into an upper gas chamber and a lower gas chamber by the film. An end face of the film facing the base is provided with a conductive contact piece which is in linkage connection with the film. The other end of the base opposite to the end cover is provided with an adjusting screw and a conducting pin which can be connected with the conductive contact piece to turn on a circuit. One end of the conducting pin is extended out of the base, and the other end of the conducting pin faces a conducting insertion piece. The lower gas chamber is internally provided with a spring. One end of the spring presses against the conductive contact piece, and the other end of the spring piece presses against the adjusting screw. The end cover is provided with a positive pressure air inlet channel which is communicated with the upper gas chamber, and the base is provided with a negative pressure suction channel which is communicated with the lower gas chamber. The pneumatic switch has the advantages of simple structure and convenient use.
Description
Technical field
The utility model relates to a kind of switch, especially a kind of jettron.
Background technology
In the daily life, especially some equipment in oil, chemical industry, automotive field must could work under certain air pressure conditions, when air pressure is lower than or be higher than the air pressure of normal need, might cause that all equipment damage reduces service life of equipment, serious even cause accident.Automobile tire for example if tyre inflating excessively causes tire pressure too high, in the process of galloping, then can reduce the ability of tyre buffering bump, runs into rugged on the road and all might damage tire; And the too high meeting of tire pressure makes Vehicular vibration, reduces the handling that the comfortableness of driving also can affect vehicle simultaneously, causes automobile suddenly malfunctioning or out of hand to automobile.If the automobile tyre inflation deficiency causes tire pressure excessively low, when galloping, under-inflation, the friction on tire and ground is multiplied, and the tire temperature sharply increases, the tire deliquescing, intensity sharply descends, running automobile not only causes blowing out greatly but also easily to tyre injury in this case, and is accidents caused.
The utility model content
In order to overcome the deficiencies in the prior art, the utility model provides a kind of jettron simple in structure, easy to use, and this jettron can be realized according to the variation of air pressure conducting or the disconnection of circuit.
To achieve these goals, the technical solution adopted in the utility model is: a kind of jettron, it is characterized in that: comprise pedestal and end cap, pedestal is fixedly connected with and consists of the air chamber of sealing with end cap, be provided with diaphragm between pedestal and the end cap, described diaphragm is divided into upper chamber and lower chamber with the air chamber between pedestal and the end cap, and diaphragm is provided with the conductive contact blade that is connected with diaphragm towards the end face of pedestal; The other end that described pedestal is connected with end cap relatively is provided with set screw, and can be connected and the conductive pin of turning circuit with conductive contact blade, and described conductive pin one end stretches out pedestal, and the conductive pin other end is towards conductive insert; Be provided with spring in the described lower chamber, spring one end is compressing conductive contact blade, and the other end of spring is compressing set screw, and described end cap is provided with the malleation inlet channel that communicates with upper chamber, and described pedestal is provided with the negative inspiratory pressure passage that communicates with lower chamber.
Adopt said structure, when the air pressure in the upper chamber during greater than the air pressure of lower chamber, the upper chamber internal gas pressure overcomes the elastic force of lower chamber inner spring, making diaphragm drive conductive contact blade makes conductive contact blade be connected with conductive pin towards the direction motion of conductive pin and during turning circuit, the utility model and external warning device just are used can in time understand barometric information.All be provided with air supply channel on said base and the end cap, can make upper lower chamber produce draught head by the pressure of malleation inlet channel inflation increase upper chamber, also can make by the pressure of the air-breathing reduction lower chamber of negative inspiratory pressure passage upper lower chamber produce draught head, improve the scope of application of the present utility model.
As further setting of the present utility model, described pedestal is connected connection with end cap, and pedestal and end cap junction are tightly connected by O-ring seals.
Adopt said structure, the buckle mode is fixedly connected with, and is simple in structure, easy to operate.
As further setting of the present utility model, described spring is provided with spring base towards an end of set screw, and an end of spring base is connected with set screw, and spring is fixedly mounted on the other end of spring base.
Adopt said structure, the setting of spring base makes spring avoid directly being connected with set screw, and spring fitting is more stable on spring base.
As further setting of the present utility model, offer the screw that communicates with described lower chamber on the described pedestal, described set screw is threaded with screw on the pedestal, the set screw outer wall offers annular groove, be provided with O-ring seals in the annular groove, set screw is tightly connected by the screw on O-ring seals and the pedestal.
Adopt said structure, the device that above-mentioned air chamber is attached thereto consists of the space of a sealing, thereby can accurately detect the situation of air pressure.
Below in conjunction with accompanying drawing the utility model is further described.
Description of drawings
Accompanying drawing 1 is the utility model specific embodiment structural representation;
Accompanying drawing 2 is the end view of the utility model accompanying drawing 1;
Accompanying drawing 3 is the vertical view of the utility model accompanying drawing 1.
Embodiment
Specific embodiment of the utility model jettron as Figure 1-3, comprise pedestal 5 and end cap 4, pedestal 5 and end cap 4 are fixedly connected with and consist of the air chamber of sealing, be provided with diaphragm 2 between pedestal 5 and the end cap 4, diaphragm 2 is divided into upper chamber 21 and lower chamber 22 with the air chamber between pedestal 5 and the end cap 4, and diaphragm 2 is provided with the conductive contact blade 3 that is connected with diaphragm 2 towards the end face of pedestal 5; The other end that pedestal 5 is connected with end cap 4 relatively is provided with set screw 7, and can be connected and the conductive pin 8 of turning circuit with conductive contact blade 3, and conductive pin 8 one ends stretch out pedestal 5, and conductive pin 8 other ends are towards conductive insert 3; Be provided with spring 1 in the lower chamber, spring 1 one ends are compressing conductive contact blade 3, and the other end of spring 1 is compressing set screw 7, and end cap 4 is provided with the malleation inlet channel 21a that communicates with upper chamber 21, and pedestal 5 is provided with the negative inspiratory pressure passage 22a that communicates with lower chamber 22.
Said base 5 is fixedly connected with end cap 4 buckle-types, and pedestal 5 and end cap 4 junctions are tightly connected by O-ring seals.
Above-mentioned spring 1 is provided with spring base 6 towards an end of set screw 7, and an end of spring base 6 is connected with set screw 7, and spring 1 is fixedly mounted on the other end of spring base 6.
Offer the screw that communicates with lower chamber 22 on the said base 5, set screw 7 is threaded with screw on the pedestal 5, set screw 7 outer walls offer annular groove 71, are provided with O-ring seals in the annular groove 71, and set screw 7 is tightly connected by the screw on O-ring seals and the pedestal 5.
Operation principle of the present utility model is as follows:
Operation principle one: when the negative inspiratory pressure passage 22a on the pedestal 5 was connected with external device (ED), the malleation inlet channel 21a on the end cap 4 opened wide.When external device is air-breathing to negative inspiratory pressure passage 22a, pressure in the lower chamber 22 reduces, form pressure difference between upper chamber 21 and the lower chamber 22, the interior pressure of lower chamber 22 reduce until after the pressure in the upper chamber 21 overcome the elastic force of spring 1, diaphragm 2 drives conductive contact blade 3 towards the direction motion of conductive pin 8, when conductive contact blade 3 contacts with conductive pin 8, circuit turn-on.After removing the getter action that external device is applied to negative inspiratory pressure passage 22a, conductive contact blade 3 resets under the effect of the elastic force of spring 1, break away from conductive pin 8 contact the circuit disconnection.
Operation principle two: when the malleation inlet channel 21a on the end cap 4 was connected with external device (ED), the negative inspiratory pressure passage 22a on the pedestal 5 opened wide.When external device passes through malleation inlet channel 21a air inlet, upper chamber 21 interior pressure raise, upper chamber 21 and lower chamber 22 produce pressure difference, when the pressure in the upper chamber 21 increase to the spring 1 that overcomes in the lower chamber 22 elastic force do the time spent, diaphragm 2 drives conductive contact blade 3 towards the direction motion of conductive pin 8, when conductive contact blade 3 contacts with conductive pin 8, circuit turn-on.When the time spent is done in the air inlet that removes external device and be applied to malleation inlet channel 21a, conductive contact blade 3 resets under the effect of the elastic force of spring 1 conductive contact blade 3 and conductive pin 8 is disengaged, and circuit disconnects.
Claims (5)
1. jettron, it is characterized in that: comprise pedestal and end cap, pedestal is fixedly connected with and consists of the air chamber of sealing with end cap, be provided with diaphragm between pedestal and the end cap, described diaphragm is divided into upper chamber and lower chamber with the air chamber between pedestal and the end cap, and diaphragm is provided with the conductive contact blade that is connected with diaphragm towards the end face of pedestal; The other end that described pedestal is connected with end cap relatively is provided with set screw, and can be connected and the conductive pin of turning circuit with conductive contact blade, and described conductive pin one end stretches out pedestal, and the conductive pin other end is towards conductive insert; Be provided with spring in the described lower chamber, spring one end is compressing conductive contact blade, and the other end of spring is compressing set screw, and described end cap is provided with the malleation inlet channel that communicates with upper chamber, and described pedestal is provided with the negative inspiratory pressure passage that communicates with lower chamber.
2. jettron according to claim 1 is characterized in that: described pedestal is connected connection with end cap, and pedestal and end cap junction are tightly connected by O-ring seals.
3. jettron according to claim 1 and 2, it is characterized in that: described spring is provided with spring base towards an end of set screw, and an end of spring base is connected with set screw, and spring is fixedly mounted on the other end of spring base.
4. jettron according to claim 1 and 2, it is characterized in that: offer the screw that communicates with described lower chamber on the described pedestal, described set screw is threaded with screw on the pedestal, the set screw outer wall offers annular groove, be provided with O-ring seals in the annular groove, set screw is tightly connected by the screw on O-ring seals and the pedestal.
5. jettron according to claim 3, it is characterized in that: offer the screw that communicates with described lower chamber on the described pedestal, described set screw is threaded with screw on the pedestal, the set screw outer wall offers annular groove, be provided with O-ring seals in the annular groove, set screw is tightly connected by the screw on O-ring seals and the pedestal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220494530 CN202772043U (en) | 2012-09-25 | 2012-09-25 | Pneumatic switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220494530 CN202772043U (en) | 2012-09-25 | 2012-09-25 | Pneumatic switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202772043U true CN202772043U (en) | 2013-03-06 |
Family
ID=47778596
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220494530 Expired - Fee Related CN202772043U (en) | 2012-09-25 | 2012-09-25 | Pneumatic switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202772043U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104048718A (en) * | 2014-06-10 | 2014-09-17 | 成都秦川科技发展有限公司 | Pressure sensor special for secure cut-off type intelligent gas meter |
| CN106226563A (en) * | 2016-07-29 | 2016-12-14 | 苏州凡特斯测控科技有限公司 | A kind of ventilation connects electrical connection mechanism |
| CN110904434A (en) * | 2018-09-14 | 2020-03-24 | 北京北方华创微电子装备有限公司 | Gas manifold block and semiconductor processing apparatus |
-
2012
- 2012-09-25 CN CN 201220494530 patent/CN202772043U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104048718A (en) * | 2014-06-10 | 2014-09-17 | 成都秦川科技发展有限公司 | Pressure sensor special for secure cut-off type intelligent gas meter |
| CN106226563A (en) * | 2016-07-29 | 2016-12-14 | 苏州凡特斯测控科技有限公司 | A kind of ventilation connects electrical connection mechanism |
| CN110904434A (en) * | 2018-09-14 | 2020-03-24 | 北京北方华创微电子装备有限公司 | Gas manifold block and semiconductor processing apparatus |
| CN110904434B (en) * | 2018-09-14 | 2021-12-17 | 北京北方华创微电子装备有限公司 | Gas manifold block and semiconductor processing apparatus |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130306 Termination date: 20130925 |