CN202266531U - A pressure sensing signal automatic switchover output control valve - Google Patents
A pressure sensing signal automatic switchover output control valve Download PDFInfo
- Publication number
- CN202266531U CN202266531U CN201120235692XU CN201120235692U CN202266531U CN 202266531 U CN202266531 U CN 202266531U CN 201120235692X U CN201120235692X U CN 201120235692XU CN 201120235692 U CN201120235692 U CN 201120235692U CN 202266531 U CN202266531 U CN 202266531U
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- control valve
- pressure
- valve body
- main
- switchover
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Abstract
The utility model relates to a pressure sensing signal automatic switchover output control valve, comprising a pressure switchover control valve body (1), a switch-out control valve plug assembly (2), a switch-in control valve plug assembly (3), a main switchover valve body (4), a main switchover valve plug (5), a switch-in pressure adjusting assembly (6), a compulsory low-speed valve body (7) and a compulsory low-speed valve plug (8). The main switchover valve body (4) is fixedly installed on the right side of the pressure switchover control valve body (1); the lower portion of the main switchover valve body (4) is fixedly connected with the compulsory low-speed valve body (7) which is provided with the compulsory low-speed valve plug (8) inside; the main switchover valve plug (5) in the main switchover valve body (4) is vertically connected with the switch-out control valve plug assembly (2) in the pressure switchover control valve body (1); and the outer side of the main switchover valve body (4) at the right end of the main switchover valve plug (5) is also provided with the switch-in pressure adjusting assembly (6). The pressure sensing signal automatic switchover output control valve has improved sensibility while maintaining flow capacity of a conventional control valve.
Description
Technical field
The utility model belongs to the control valve technical field, particularly relates to a kind of pressure sensitive signal automatic switchover output control valve.
Background technique
Control valve is claimed modulating valve again, is the main performance element instrument in the industrial process control, through accepting to regulate the control signal of control unit output, removes to change fluid flow by power operation.Control valve generally is made up of actuator and valve.If by its join the power that actuator uses; That control valve can be divided into is pneumatic, electronic, surge, manually and five kinds of self-powering types; Being the pneumatic control valve of power source with pressurized air promptly, is the motor-operated control valve of power source with the electricity, is the electricity of the power control valve that surges with liquid medium (like wet goods) pressure; Manually operated hand control valve, the pressure that relies on medium self in the valve of flowing through or temperature are as the direct-operated regulator of driven by energy; In addition, by its function and characteristic branch, solenoid valve, electronic type, intellectual, field bus type control valve etc. in addition.
But when flow was high, sensitivity descended at existing control valve, thereby can't adapt to complicated operating mode.
The model utility content
The utility model technical problem to be solved provides a kind of pressure sensitive signal output control valve that automaticallyes switch, and can guarantee but under the situation of existing control valve through-current capability the sensitivity that improves device.
The utility model solves the technological scheme that its technical problem adopted: provide a kind of pressure sensitive signal to automatically switch and export control valve; Comprise pressure switching controls valve body, cut out the control valve core assembly, incision control valve core assembly; Main switching valve; The main spool that switches, incision pressure adjusting part is forced the low speed valve body and is forced the low speed spool; Described pressure switching controls valve body right side is mounted with main switching valve; Main switching valve bottom connects the fixing low speed spool of forcing the low speed valve body and force the low speed valve inner to be equipped with to force, and main in the main switching valve switches and cut out that the control valve core assembly is vertical to be connected in spool and the pressure switching controls valve body, and the main main switching valve outside of switching the spool right-hand member also is equipped with cuts the pressure adjusting part.
Be connected for screw between described pressure switching controls valve body and the main switching valve.
Beneficial effect
The utility model advantage has:
1, high induction sensitivity is impacted for a short time, and reaction is fast;
2, through-current capability is big, the pressure loss is little;
3, iso standard interface.
Description of drawings
Fig. 1 is the utility model sectional view.
Fig. 2 is the utility model circuit controling drawing.
Embodiment
Below in conjunction with specific embodiment, further set forth the utility model.Should be understood that these embodiments only to be used to the utility model is described and be not used in the restriction the utility model scope.Should be understood that in addition those skilled in the art can do various changes or modification to the utility model after the content of having read the utility model instruction, these equivalent form of values fall within the application's appended claims institute restricted portion equally.
Embodiment 1
As shown in Figure 1, a kind of pressure sensitive signal automaticallyes switch and exports control valve, comprises pressure switching controls valve body 1; Cut out control valve core assembly 2; Incision control valve core assembly 3, main switching valve 4, the main spool 5 that switches; Incision pressure adjusting part 6; Force low speed valve body 7 and pressure low speed spool 8, described pressure switching controls valve body 1 right side is mounted with main switching valve 4, and main switching valve 4 bottoms connect to fix forces low speed valve body 7 and force low speed valve body 7 inside that pressure low speed spool 8 is installed; Main in the main switching valve 4 switches cutting out 2 vertical connections of control valve core assembly in spool 5 and the pressure switching controls valve body 1, and main switching valve 4 outsides of main switching spool 5 right-hand members also are equipped with cuts pressure adjusting part 6.
Be connected for screw between described pressure switching controls valve body 1 and the main switching valve 4.
As shown in Figure 2, a kind of pressure sensitive signal automaticallyes switch and exports the control valve method for using,
1, the fixed signal output precision does not have pilot pressure input PP mouth: the fixed signal spool is in the home position, and P mouth pressure oil communicates with B mouth signal port, and A mouth signal port communicates with oil return T mouth.At this moment, the fixed signal mouth is the output of B mouth, the oil extraction of A mouth.
2, the fixed signal output precision has pilot pressure input PP mouth:
During original state, high voltage induction end pressure oil directly communicates with oil return inlet T through low pressure induction control spool.P mouth pilot pressure oil communicates with signal port A mouth, and B mouth signal port communicates with oil return T mouth.At this moment, signal port is the output of A mouth, the oil extraction of B mouth;
When pilot pressure promotion fixed signal spool is in left position; P mouth pressure oil gets into low pressure induction control spool bottom; Promote low pressure induction control spool and move up, P mouth pressure oil enters into high voltage induction control spool left end, when pressure reaches high voltage induction adjusting part preheating setting pressure; Pressure oil promotes high voltage induction control spool, and the main spool that switches of promotion moves right.Simultaneously, P mouth pressure oil communicates with signal port B mouth through the main spool that switches, and A mouth signal port communicates with oil return T mouth.At this moment, signal port is the output of B mouth, the oil extraction of A mouth.Because high voltage induction control spool induction open area is much smaller than opening back pressure active area, when the P mouth pressure was lower than the high voltage induction preheating setting pressure, main switching valve can not return to original state, did not promptly change signal port output.
When the P mouth pressure was lower than low pressure induction control valve core assembly precompression, low pressure induction control valve core reset moved down, and high voltage induction end pressure oil directly communicates with oil return inlet T, and main switching valve resets.P mouth pilot pressure oil communicates with signal port A mouth, and B mouth signal port communicates with oil return T mouth.At this moment, signal port is the output of A mouth, the oil extraction of B mouth.
1, maximum service pressure: 24.5Mpa;
2, Forced Valve cracking pressure: 1.5Mpa;
3, maximum output flow: the 60L/min of signal port;
4, high voltage induction (incision) is regulated pressure: 12-22.5Mpa;
5, low pressure induction (cutting out) preset pressure: 3.2Mpa.
Claims (2)
1. control valve is exported in a pressure sensitive signal automatic switchover; Comprise pressure switching controls valve body (1), cut out control valve core assembly (2), incision control valve core assembly (3); Main switching valve (4); The main spool (5) that switches, incision pressure adjusting part (6) is forced low speed valve body (7) and is forced low speed spool (8); It is characterized in that: described pressure switching controls valve body (1) right side is mounted with main switching valve (4); Main switching valve (4) bottom connects the fixing low speed spool (8) of forcing low speed valve body (7) and force low speed valve body (7) inside to be equipped with to force, and main in the main switching valve (4) switches cutting out vertical connection of control valve core assembly (2) in spool (5) and the pressure switching controls valve body (1), also is equipped with outside the main switching valve (4) of main switching spool (5) right-hand member and cuts pressure adjusting part (6).
2. a kind of pressure sensitive signal according to claim 1 output control valve that automaticallyes switch is characterized in that: be connected for screw between described pressure switching controls valve body (1) and the main switching valve (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120235692XU CN202266531U (en) | 2011-07-05 | 2011-07-05 | A pressure sensing signal automatic switchover output control valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120235692XU CN202266531U (en) | 2011-07-05 | 2011-07-05 | A pressure sensing signal automatic switchover output control valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202266531U true CN202266531U (en) | 2012-06-06 |
Family
ID=46157328
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120235692XU Expired - Fee Related CN202266531U (en) | 2011-07-05 | 2011-07-05 | A pressure sensing signal automatic switchover output control valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202266531U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102287565A (en) * | 2011-07-05 | 2011-12-21 | 宁波斯达弗液压传动有限公司 | Automatic switching output control valve for pressure sensing signals and method |
-
2011
- 2011-07-05 CN CN201120235692XU patent/CN202266531U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102287565A (en) * | 2011-07-05 | 2011-12-21 | 宁波斯达弗液压传动有限公司 | Automatic switching output control valve for pressure sensing signals and method |
| CN102287565B (en) * | 2011-07-05 | 2013-10-23 | 宁波斯达弗液压传动有限公司 | Automatic switching output control valve for pressure sensing signals and method |
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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 |
Granted publication date: 20120606 Termination date: 20140705 |
|
| EXPY | Termination of patent right or utility model |