SU717468A1 - Electropneumatic valve with position indicator - Google Patents

Description

The invention relates to pipe fittings and is intended for use as an actuating device in pneumatic hydraulic systems of installations in various industries. A solenoid valve with a position indicator is known, which is made according to an unloaded circuit, in which the indicator sends a trigger signal. electromagnet til. However, such signaling devices do not have an idea of the movement of the main gate. An electropneumatic valve with a valve position indicator is known in which the check and discharge valves are installed, the valve stem is kinematically connected with the position alarm 12. However, the well-known electropneumatic valve does not provide tightness over a wide temperature range and moreover, the rod is not unloaded from. The internal pressure of the working medium. The invention is an increase in the reliability of the valve. This is achieved by the kinematic connection of the closure member to the alarm device Assumption is made as a sleeve and a therein that serves a hollow torsion bar to the shaft, wherein one end of the torsion bar is rigidly connected to the housing, and, with the other sleeve. FIG. 1 depicts the proposed electropneumatic valve; in fig. 2 shows section A-A in FIG. 1. An electropneumatic valve with a gate position indicator device contains an electromagnet 1 installed on the housing 2 where the discharge valve 3 is placed to the spring-loaded gate 4, which is with. the rod 5 is connected to the stop 6 of the rotary sleeve 7. The sleeve 7 is connected at one end to the support sleeve 8, and the other end is rigidly connected to one of the ends of the shaft 9,

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The post-end of which is rigidly connected to the lever 10, which interacts with the position indicator 11. The shaft 9 is placed into a hermetic thin-walled tube 12, the shaft is turned 9, and {{goyt; from the translational movement of the rod 5, in addition, it can also be realized by any known cnqcodoMi, for example, a rack and gear, a screw pair, etc.

Works proposed electropneumatic valve as follows.

In the reset position, the gas under pressure enters the cavity 13 through the channel 14, the cavity 15 through the channel 16 communicates with the cavity 13 and is separated from the atmosphere. The shutter 4 is preloaded to the saddle of the housing 2, the channels 14 to 17 are separated, the solenoid valve is closed1 ;. In this case, the rod 5 is in the extreme left position, the stop 6 of the rotary sleeve 7 is in the neutral position, the indicator 11 is deactivated.

When the electromagnet 1 is turned on, the unloading valve 3 moves to the lowermost position. Cavity 15 is separated from cavity 13 and communicates with the atmosphere. Shutter 4 under action. gas pressure in the cavity 13 shifts to the right, and with it moves the rod 5, turning all |

17468 -4

the sleeve 7 with the stop 6, which rotates the shaft 9 with the lever 10, including the alarm 11, with the channels 14 and 17 communicating with each other, an electropneumatic 5 valve is open,

; The sealed tube 12 is twisted at a certain angle within the limits of the elastic stresses that can be applied.

Claims (1)

Invention Formula An electrically operated valve with a position indicator, in the body of which shut-off and unloading valves are installed, the shut-off valve stem is kinematically connected to a position signaling device, characterized in that, to improve reliability, the kinematic connection of the shut-off valve An organ with a position indicator is made in the form of a bushing and a poibgo torsion with a shaft is placed in it, the torsion with one end rigidly connected to the body, and the shchuzim with the sleeve. Sources of information taken into account in the examination 1, USSR Author's Certificate N9 5О9747, Р 16 К 15/00, 1974, 2, Barmin V, P, with the automatic automatic systems, М, 1965, с, 108, 1 P vu tt: ia-u rtSt «+ X x --I.   i-r - f - - --- FvG "-i wt -t "h;