CN203442263U - Pressure reducing valve capable of outputting selectively - Google Patents
Pressure reducing valve capable of outputting selectively Download PDFInfo
- Publication number
- CN203442263U CN203442263U CN201320422523.6U CN201320422523U CN203442263U CN 203442263 U CN203442263 U CN 203442263U CN 201320422523 U CN201320422523 U CN 201320422523U CN 203442263 U CN203442263 U CN 203442263U
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- pressure
- valve
- piston rod
- cavity
- control
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Abstract
The utility model relates to a pressure reducing valve capable of outputting selectively. The pressure reducing valve capable of outputting selectively comprises a valve body, an adjusting spring, a piston rod and a supply valve door. Two sides of the supply valve door are an input cavity and an output cavity. Two ends of the piston rod are connected with the supply valve door and the adjusting spring. Two pressure pre-control cavities are arranged above the output cavity in sequence. A lower diaphragm plate of each pressure pre-control cavity is larger than an upper diaphragm plate of each pressure pre-control cavity in area. An air inlet of each pressure pre-control cavity is connected with an air source through a solenoid valve. The piston rod penetrates through the upper diaphragm plates and the lower diaphragm plates of the two pressure pre-control cavities and the piston rod, the upper diaphragm plates and the lower diaphragm plates are fixed and sealed. According to the utility model, the required pressure can be adjusted automatically according to system requirements. The adjusting spring can be used for setting initial pressure. When the pressure cannot meet the system requirements, the solenoid valves act to increase the pre-control pressure of the pressure reducing valve, and therefore the function of increasing pressure output is achieved. The two solenoid valves act together to realize the adjustment of output pressure, the solenoid valve which is needed for work is selected according to the system requirements for pressure, and therefore work efficiency is improved, energy sources are prevented from being wasted and multi-level output of pressure is achieved.
Description
Technical field
The utility model relates to the leveling valve that pneumatic spring is filled automatically to exhaust, relates in particular to a kind ofly can realize according to deadlight load intensity of variation difference the reduction valve of the output selected of flow control.
Background technique
Reduction valve plays the effect of adjust system working pressure in railway brake system.The reduction valve majority that current track vehicle uses is non-adjustable compression release valve, only can set a definite value, cannot adjust online according to the pressure demand of system, can not control delivery pressure.
Model utility content
Technical problem to be solved in the utility model is, overcomes the above-mentioned deficiency of prior art, and a kind of reduction valve of selecting output is provided, and it can export the pressure of a plurality of gears, has realized the multilevel control to delivery pressure.
In order to solve above technical problem, the reduction valve of the output selected that the utility model provides, comprise relief valve body, in described valve body, be provided with adjustment spring, piston rod, supply with valve, described supply valve both sides are input cavity, output cavity, piston rod two ends connect respectively to be supplied with valve and adjusts spring, it is characterized in that: described output cavity top is disposed with two pressure pre-control chambeies, the lower lamina membranacea area in described pressure pre-control chamber is greater than lamina membranacea area, the suction port in described pressure pre-control chamber connects source of the gas through two-bit triplet solenoid valve respectively, described piston rod is upper through two pressure pre-control chambeies, lower lamina membranacea with it fixing and sealing.
In order to solve above technical problem, the utility model further improves as follows:
1, described piston rod passes from the middle part of the upper and lower lamina membranacea in pressure pre-control chamber.
2, also have the initial elastic force being connected with valve body screw thread and adjust knob, the lower end that described initial elastic force is adjusted knob props up the upper end of adjusting spring.
The utility model can be adjusted needed pressure voluntarily according to system requirements.This reduction valve can carry out initial pressure setting by adjusting spring; When pressure cannot meet system needs, the pre-governor pressure that solenoid valve action increases reduction valve increases spring adjustment power, thereby realize, increases Output pressure function.This product is realized the adjustment of delivery pressure by two solenoid valve actings in conjunction, select to need the solenoid valve of work according to system pressure demand, has improved working efficiency, avoids energy waste, has realized the multistage output of pressure.
Accompanying drawing explanation
Fig. 1 is the structure of relief pressure valve schematic diagram that the utility model can be selected output.
Number in the figure is schematically as follows:
1-valve body, 2-adjusts spring, 3-the first lamina membranacea, 4-the second lamina membranacea, 5-tertiary membrane plate, 6-the first two-bit triplet solenoid valve, 7-the second two-bit triplet solenoid valve, the initial elastic force of 8-is adjusted knob, 9-output cavity, 10-input cavity, 11-piston rod, 12-supplies with valve, A-the first pressure pre-control chamber, B-the second pressure pre-control chamber.
Embodiment
For making the utility model embodiment's object, technological scheme and advantage clearer, below in conjunction with accompanying drawing, the technological scheme in the utility model embodiment is clearly and completely described, obviously, described embodiment is the utility model part embodiment, rather than whole embodiments.
As shown in Figure 1, for the utility model embodiment can select the reduction valve of exporting, comprise relief valve body 1, in valve body 1, be provided with and adjust spring 2, piston rod 11, supply with valve 12, supplying with valve both sides is input cavity 10, output cavity 9, piston rod 11 two ends connect respectively to be supplied with valve 12 and adjusts spring 2, output cavity 9 tops are disposed with the second pressure pre-control chamber B, the first pressure pre-control chamber A, the lower lamina membranacea area in pressure pre-control chamber is greater than lamina membranacea area, two pressure pre-control chambeies separate formation by 3 masterplates, between the first lamina membranacea 3 and the second lamina membranacea 4, form the first pressure pre-control chamber A, its lower lamina membranacea (the second lamina membranacea 4) area is greater than lamina membranacea (the first lamina membranacea 3) area, between the second lamina membranacea 4 and tertiary membrane plate 5, form the second pressure pre-control chamber B, its lower lamina membranacea (tertiary membrane plate 5) area is greater than lamina membranacea (the second lamina membranacea 4) area, the suction port in first, second pressure pre-control chamber connects source of the gas through the first two-bit triplet solenoid valve 6, the second two-bit triplet solenoid valve 7 respectively, and piston rod 11 is through the upper and lower lamina membranacea middle part in two pressure pre-control chambeies fixing and sealing with it.As shown in Figure 1, the present embodiment also has the initial elastic force being threaded with valve body 1 and adjusts knob 8, the lower end that initial elastic force is adjusted knob 8 props up the upper end of adjusting spring 2, by rotating initial elastic force adjustment knob 8, can adjust adjusting the initial elastic force of spring 2, thus the initial pressure in regulation output chamber 9.The relief opening that in figure, EX1 is pressurizing valve, EX2 is the relief opening of the first two-bit triplet solenoid valve 6, EX3 is the relief opening of the second two-bit triplet solenoid valve 7.
The initial pressure method in regulation output chamber 9 is as follows:
The air of discharging in the first pressure pre-control chamber A and the second pressure pre-control chamber B by first, second two-bit triplet solenoid valve 6,7, the first lamina membranacea 3, the second lamina membranacea 4 are not all stressed, thereby the first lamina membranacea 3, the second lamina membranacea 4 do not produce axial force to piston rod, tertiary membrane plate 5 suffered output cavity pressurized air effect is set equilibrium of forces with adjusting spring 2, now adjusts spring setting pressure and is the initial delivery pressure of reduction valve.
The online adjusting method of reduction valve delivery pressure is as follows:
Because the first pressure pre-control chamber A is different with the lifting surface area of the second pressure pre-control chamber B bolster, the delivery pressure that therefore identical air pressure produces is different.According to system requirements, first, second two-bit triplet solenoid valve 6,7 is used in conjunction with, and scavenging action is filled in the pressure pre-control chamber of controlling separately, realizes the multiple Output pressure of reduction valve.
In addition to the implementation, the utility model can also have other mode of executions.All employings are equal to the technological scheme of replacement or equivalent transformation formation, all drop on the protection domain of the utility model requirement.
Claims (3)
1. can select the reduction valve of exporting for one kind, comprise relief valve body, in described valve body, be provided with adjustment spring, piston rod, supply with valve, described supply valve both sides are input cavity, output cavity, piston rod two ends connect respectively to be supplied with valve and adjusts spring, it is characterized in that: described output cavity top is disposed with two pressure pre-control chambeies, the lower lamina membranacea area in described pressure pre-control chamber is greater than lamina membranacea area, the suction port in described pressure pre-control chamber connects source of the gas through two-bit triplet solenoid valve respectively, described piston rod is upper through two pressure pre-control chambeies, lower lamina membranacea with it fixing and sealing.
2. the reduction valve of selecting output according to claim 1, is characterized in that: described piston rod passes from the middle part of the upper and lower lamina membranacea in pressure pre-control chamber.
3. the reduction valve of selecting output according to claim 2, is characterized in that: also have the initial elastic force being connected with valve body screw thread and adjust knob, the lower end that described initial elastic force is adjusted knob props up the upper end of adjusting spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320422523.6U CN203442263U (en) | 2013-07-16 | 2013-07-16 | Pressure reducing valve capable of outputting selectively |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320422523.6U CN203442263U (en) | 2013-07-16 | 2013-07-16 | Pressure reducing valve capable of outputting selectively |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203442263U true CN203442263U (en) | 2014-02-19 |
Family
ID=50093320
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320422523.6U Expired - Lifetime CN203442263U (en) | 2013-07-16 | 2013-07-16 | Pressure reducing valve capable of outputting selectively |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203442263U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103335143A (en) * | 2013-07-16 | 2013-10-02 | 南京浦镇海泰制动设备有限公司 | Pressure reducing valve capable of outputting pressure selectively |
| CN108662224A (en) * | 2018-07-19 | 2018-10-16 | 杭州乐守科技有限公司 | A kind of pressure maintaining valve |
-
2013
- 2013-07-16 CN CN201320422523.6U patent/CN203442263U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103335143A (en) * | 2013-07-16 | 2013-10-02 | 南京浦镇海泰制动设备有限公司 | Pressure reducing valve capable of outputting pressure selectively |
| CN108662224A (en) * | 2018-07-19 | 2018-10-16 | 杭州乐守科技有限公司 | A kind of pressure maintaining valve |
| CN108662224B (en) * | 2018-07-19 | 2019-09-24 | 台州嘉亨阀门有限公司 | A kind of pressure maintaining valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 211800 Nanjing City, Pukou Province Economic Development Zone, Jiangsu Road, No. 10 Patentee after: CRRC NANJING PUZHEN HAITAI BRAKE EQUIPMENTS Co.,Ltd. Address before: 211800 Nanjing City, Pukou Province Economic Development Zone, Jiangsu Road, No. 10 Patentee before: NANJING PUZHEN HAITAI BRAKE EQUIPMENT Co.,Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140219 |