CN202905593U - Pressure controller - Google Patents
Pressure controller Download PDFInfo
- Publication number
- CN202905593U CN202905593U CN 201220544736 CN201220544736U CN202905593U CN 202905593 U CN202905593 U CN 202905593U CN 201220544736 CN201220544736 CN 201220544736 CN 201220544736 U CN201220544736 U CN 201220544736U CN 202905593 U CN202905593 U CN 202905593U
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- CN
- China
- Prior art keywords
- linking arm
- contact
- terminals
- pressure controller
- cast aluminum
- 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 pressure controller, characterized by comprising a cast aluminum shell, a microswitch, a bourdon tube and wire holder. The microswitch comprises a normally open contact, a normally-closed contact, a copper sheet, a spring, a contact, connecting arms and a phenolic aldehyde shell, and the connecting arms comprise a first connecting arm, a second connecting arm, a third connecting arm and a fourth connecting arm; the normally-closed contact is arranged on the first connecting arm, the normally open contact is arranged on the second normally open contact, the spring is arranged on the third connecting arm, and the copper sheet is arranged on the fourth connecting arm; the contact is fixed on the phenolic aldehyde shell and is contacted with the copper sheet, the bourdon tube is contacted with the contact, and the wire holder is connected with the microswitch. The pressure controller of the utility model can be used in an explosive gas environment, is high in opening and closing frequency, good in earthquake-proof performance and large in contact capacity, and has an optimized structure.
Description
Technical field
The utility model relates to a kind of pressure controller, relates in particular to a kind of pressure controller that is applicable to explosive gas atmosphere, belongs to the pressure control field.
Background technology
In the industrial detection control procedure, especially compressor, water pump, boiler equal pressure equipment all need to control relevant pressure size at present.But mostly the past is setting pressure table on corresponding press device, and artificial monitor force situation is removed to open or closed corresponding equipment according to the variation of pressure and comes with this that pressure is unlikely to too high or too low in controlled pressure equipment.Along with the development of science and technology, nowadays some corresponding pressure controllers have appearred.
Present pressure controller is applicable to measure without line position formula (formula or two formulas) control of going forward side by side of the pressure of the fluid media (medium) of explosion hazard.Controller is that work by flexible member is in order to drive the pressure controller table of sensitive switch work.That controller has is rational in infrastructure, action accurately, use the characteristics such as reliable.
The controller of on-off control is provided with can be for the device of regulating differential gap, so that the upper and lower switching value of tested (control) medium transfers in the suitable pressure control scope.
But there is following shortcoming:
1, do not reach requirement of explosion proof because of its housing and sensitive switch, can not be used for the occasion of explosive gas atmosphere;
2, low because of the sensitive switch life-span, it is low to open and close the frequency;
3, optimize not because of structure, vibration resistance is poor;
4, poor because of sensitive switch contact material, contact capacity is little.
The utility model content
The purpose of this utility model is to provide a kind of pressure controller explosive gas atmosphere, that the switching frequency is high, vibration resistance is strong, contact capacity is large that is applicable to.
The technical scheme that addresses the above problem is: a kind of pressure controller, comprise cast aluminum casings, sensitive switch, bourdon tube, junction block, described sensitive switch comprises normally opened contact, normally-closed contact, copper sheet, spring, contact, linking arm and phenolic aldehyde housing, described linking arm is divided into the first linking arm, the second linking arm, the 3rd linking arm, the 4th linking arm, described normally-closed contact is located on the first linking arm, described normally opened contact is located on the second linking arm, described spring is located on the 3rd connecting wall, described copper sheet is located on the 4th linking arm, described contact is fixed on the described phenolic aldehyde housing, contact with described copper sheet, described bourdon tube contacts with described contact, and described junction block is connected with described sensitive switch.
Described sensitive switch also comprises terminals, and described terminals are divided into the first terminals, the second terminals, the 3rd terminals.
Described the first linking arm is connected with described the first terminals, and described the second linking arm is connected with described the second terminals, and described the 3rd linking arm, the 4th linking arm are connected with described the 3rd terminals.
Described junction block is located in the described cast aluminum casings, is connected respectively with described the first terminals, the second terminals, the 3rd terminals.
Also comprise sealing ring, be located at the inwall of described cast aluminum casings.
Also comprise joint, be located on the described cast aluminum casings.
Also comprise lead collar, be located on the described cast aluminum casings.
The utility model the utility model has the advantage of the employing cast aluminum casings, so that can be used for explosive gas atmosphere; The sensitive switch life-span is high, so that it is high to open and close the frequency; Structure optimization, shock resistance is good; Sensitive switch adopts the phenolic aldehyde material, and contact capacity is large.
Below in conjunction with accompanying drawing the utility model is described in further detail.
Description of drawings
Fig. 1 is perspective view of the present utility model;
Fig. 2 is end view of the present utility model;
Fig. 3 is the utility model microswitch structure schematic diagram.
Embodiment
In order to deepen understanding of the present utility model, the utility model is described in further detail below in conjunction with embodiment and accompanying drawing, and this embodiment only is used for explaining the utility model, does not consist of the restriction to the utility model protection range.
Shown in Fig. 1-3, a kind of pressure controller provided by the utility model, comprise cast aluminum casings 15, sensitive switch 1, bourdon tube 16, sensitive switch 1 comprises normally-closed contact 6, normally opened contact 7, copper sheet 5, spring 4, contact 3, linking arm and phenolic aldehyde housing 2, linking arm is divided into the first linking arm 8, the second linking arm 9, the 3rd linking arm 10, the 4th linking arm 11, normally-closed contact 6 is located on the first linking arm 8, normally opened contact 7 is located on the second linking arm 9, spring 4 is located on the 3rd connecting wall 10, copper sheet 5 is located on the 4th linking arm 11, contact 3 is fixed on the phenolic aldehyde housing 2, contacts with copper sheet 5, and bourdon tube 16 contacts with contact 3.Sensitive switch 1 also comprises terminals, and terminals are divided into the first terminals 12, the second terminals 13, the 3rd terminals 14.The first linking arm 8 is connected with the first terminals 12, and the second linking arm 9 is connected with the second terminals 13, and the 3rd linking arm 10, the 4th linking arm 11 are connected with the 3rd terminals 14.The first terminals 12, the second terminals 13, the 3rd terminals 14 all are connected with junction block 18 by wire.
When fluid pressure impact spring pipe 16, bourdon tube 16 presses contact 3, and contact 3 drives copper sheet 5, and copper sheet 5 drives spring 4, and final under the effect of spring 4, copper sheet 5 is separated with normally-closed contact 6, fits with normally opened contact 7, realizes fine motion.
The utility model also comprises sealing ring 17, is attached at the inwall of cast aluminum casings 15, and fluid is enclosed in the cast aluminum casings firmly, also can not feed through to external environment even blast in inside.Also comprise joint 19, be located on the cast aluminum casings 15, be connected with press device.Also comprise lead collar 20, be located on the cast aluminum casings 15, be connected with power-supply device.
Because microswitch structure optimization, the frequency is high, shock resistance is good so that open and close; Adopt cast aluminum casings, the cast aluminum casings inwall arranges again sealing ring, so that the utility model can be used for explosive gas atmosphere; Sensitive switch adopts the phenolic aldehyde material, and contact capacity is large.To sum up, the utility model has solved existing technical problem, and is applied widely, is fit to extensive use.
The above only is preferred embodiment of the present utility model; not in order to limit the utility model; all within spirit of the present utility model and principle, any modification of doing, be equal to replacement, improvement etc., all should be included within the protection range of the present utility model.
Claims (7)
1. pressure controller, it is characterized in that: comprise cast aluminum casings, sensitive switch, bourdon tube, junction block, described sensitive switch comprises normally opened contact, normally-closed contact, copper sheet, spring, contact, linking arm and phenolic aldehyde housing, described linking arm is divided into the first linking arm, the second linking arm, the 3rd linking arm, the 4th linking arm, described normally-closed contact is located on the first linking arm, described normally opened contact is located on the second linking arm, described spring is located on the 3rd connecting wall, described copper sheet is located on the 4th linking arm, described contact is fixed on the described phenolic aldehyde housing, contact with described copper sheet, described bourdon tube contacts with described contact, and described junction block is connected with described sensitive switch.
2. pressure controller according to claim 1, it is characterized in that: described sensitive switch also comprises terminals, described terminals are divided into the first terminals, the second terminals, the 3rd terminals.
3. pressure controller according to claim 1 and 2, it is characterized in that: described the first linking arm is connected with described the first terminals, described the second linking arm is connected with described the second terminals, and described the 3rd linking arm, the 4th linking arm are connected with described the 3rd terminals.
4. pressure controller according to claim 1 is characterized in that: described junction block, be located in the described cast aluminum casings, and be connected respectively with described the first terminals, the second terminals, the 3rd terminals.
5. pressure controller according to claim 1 is characterized in that: also comprise sealing ring, be located at the inwall of described cast aluminum casings.
6. pressure controller according to claim 1 is characterized in that: also comprise joint, be located on the described cast aluminum casings.
7. pressure controller according to claim 1 is characterized in that: also comprise lead collar, be located on the described cast aluminum casings.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220544736 CN202905593U (en) | 2012-10-23 | 2012-10-23 | Pressure controller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220544736 CN202905593U (en) | 2012-10-23 | 2012-10-23 | Pressure controller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202905593U true CN202905593U (en) | 2013-04-24 |
Family
ID=48126227
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220544736 Expired - Fee Related CN202905593U (en) | 2012-10-23 | 2012-10-23 | Pressure controller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202905593U (en) |
-
2012
- 2012-10-23 CN CN 201220544736 patent/CN202905593U/en not_active Expired - Fee Related
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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: 20130424 Termination date: 20161023 |