RU105703U1 - ELECTROMAGNETIC MEMBRANE VALVE - Google Patents

Abstract

 An electromagnetic membrane valve, comprising a housing with inlet and outlet pipes (cavities) installed in it, a cover mounted on the cover of an electromagnet with a movable armature, a membrane, characterized in that it additionally contains two bases fixed to the housing, a second output pipe, and a second electromagnet with a movable anchor mounted on the second cover, the lower plane of the membranes overlaps the inlet openings of the outlet pipes, each membrane is fixed between the base and the cover, in each cover there is a channel, associated with the corresponding locking device made in the lid and consisting of a cavity, in the final sections of which there are holes that can overlap with a ball that can move in this cavity along its axis, a rod is installed between the ball and the armature of the electromagnet.

Description

Solenoid valve diaphragm

The utility model relates to the field of air flow control, remotely activated distribution valves, and can be used to connect compressed air to the nozzles of a cleaning device of railroad switches.

Known solenoid valve according to the application for invention No. 94044081 IPC F16K 31/02, published 10.10.1996, containing a housing with inlet and outlet pipes (channels), an electromagnet with a movable armature, a membrane.

The membrane electromagnetic valve is also known, according to the application for invention No. 99112643 IPC ⁷ F16K 31/06 published on 04/10/2001, containing a housing with inlet and outlet pipes (cavities) installed in it, a cover mounted on the cover of an electromagnet with a movable armature, a membrane .

The closest analogue is a membrane electromagnetic valve, according to the application for invention No. 2001109982 F16K 1/00 published on 02.27.2003, containing a housing with inlet and outlet pipes (cameras), a cover mounted on the cover of an electromagnet with a movable armature, a membrane.

Known devices provide remote control of the air flow, but with only one consumer. To clean the turnouts, you need to distribute the air to two consumers (left and right wrenches of the turnout). That is, you must use the two pneumatic valves described above. In addition, in the case of the indicated use, it is very important that when the valve is turned on, the pressure at the outlet pipe increases as quickly as possible, only in this case efficient cleaning of the turnouts is possible. The pressure rise front in known devices cannot be steep because There is no energy storage in the immediate vicinity of the treatment site.

The technical result of the proposed technical solution is the replacement of two well-known solenoid valves with one remote control for two consumers and providing a high rate of increase in pressure at the outlet pipes.

To achieve this technical result, a known device comprising a housing with inlet and outlet pipes (cavities) installed in it, a cover mounted on the cover of an electromagnet with a movable armature, a membrane, according to a utility model, further comprises two bases fixed to the housing, a second output pipe, a second electromagnet with a movable armature mounted on the second cover, the lower plane of the membranes overlaps the inlet openings of the outlet pipes, each membrane is fixed between the base and the cover minutes, each lid has a channel associated with the corresponding locking device, made in the lid and consisting of a cavity in the end sections of which have openings which can be closed balloon having the opportunity to move into the cavity along its axis, between the ball and the armature of the electromagnet is mounted rod.

Figure 1 shows an example implementation of the described device in vertical section.

An electromagnetic solenoid valve containing a sealed housing 1 with an inlet 2 and two outlet 3 nozzles installed in it, two membranes 4 whose lower plane overlaps the inlet openings of the outlet nozzles 3, each membrane 4 is fixed between the bases 5, mounted on the housing 1 and the covers 6 of the membrane 4 , in the covers 6 there is a channel 7 connected to the corresponding locking device 8,

Figure 2 shows the locking device in a vertical section.

The locking device 8 is made in each cover 6 and consisting of a cavity 9 in the upper and lower part, which has openings 10 and 11, which can be blocked by a ball 12 that can move vertically in the cavity 9, an electromagnet 13 with an armature 14 is mounted on the cover 6 and the rod 15, and the upper end of the rod 15 is under the anchor 14, and the lower abuts against the ball 12.

Implementation of a utility model.

Description of an example of a solenoid valve.

The housing 1 is a welded structure consisting of two side, two end and upper and lower walls. Three holes are made in the bottom wall. The middle hole is installed inlet pipe 2, and in the extreme holes are installed outlet pipes 3. In the upper wall there are two holes to which the bases 5 are welded, made in the form of metal rings.

To ensure the tightness of the supmembrane cavity, the cover 6 is mounted around the circumference to the base 5 with bolts 16. The flanging of the membrane 4 serves as a seal between the cover 6 and the base 5.

To ensure rigidity of the lower part of the membrane 4, the latter, with the help of a bolt 17, tightens the upper 18 and lower (stop) 19 washers. To overlap the outlet pipe was tight at the end of the outlet pipe 3 is installed a sealing ring 20.

In the proposed embodiment, the outlet pipes 3 consist of two parts: the upper part is made in the form of a cylinder 21 with a side flanging in the groove, which has a sealing ring 22. A thread is cut into the bottom of this cylinder, onto which the corner pipe is screwed, with its help the pipe 3 is attached to the bottom wall of the housing 1.

The operation of the electro-pneumatic valve is as follows.

Compressed air is supplied to the inlet pipe 2 from the line at a pressure above atmospheric pressure. Compressed air fills the cavity of the housing 1 and through the lower hole 11 in the base 5 moves the ball 12 from the lower seal formed by a ring made, for example, of rubber. The ball 12 rises to the upper sealing ring installed in the upper hole 10, as a result of the ball 12 overlaps the upper hole, and air passes through the channel 7 in the lid 6 into the supramembrane cavity. After filling the supmembrane cavity, the pressure in it and in the cavity of the housing 1 is equalized. Due to the fact that the area of the membrane 4, on which the compressed air acts, of the supramembrane cavity is larger than the submembrane, the lower part of the membrane 4 is pressed against the outlet of the outlet pipe 3 and overlaps it. As a result, the air pressure in the outlet pipes 3 is equal to atmospheric.

The anchor 14 of the electromagnet 13 is made in the form of a continuous steel cylinder with side grooves, for air to exit through the cavity of the electromagnet 13.

To create pressure at one of the outlet pipes 3, a signal in the form of a voltage is applied to the winding of the corresponding electromagnet 13, while the armature 14 is retracted, pushing the rod 15 downward, while the ball 12 opens the upper hole 10 and closes the lower hole 11. Compressed air from the above-membrane cavity , through the upper hole 10 and the cavity of the electromagnet 13, enters the atmosphere and the pressure in the supramembrane cavity decreases to atmospheric. In this case, due to the pressure in the submembrane cavity, the membrane 4 rises and opens the access of compressed air to the outlet pipe 3 until the air is supplied under pressure to the inlet pipe and the electromagnet is turned on. If you need to manually turn on the air supply, just press a finger and hold the armature 14 of the electromagnet 13.

Depending on which electromagnet 13 is turned on, the supply of compressed air will be through the corresponding nozzle 3. The internal volume of the housing 1 in front of the membrane 4 is tens of times larger than that of the analogs, therefore it is used as a gas accumulator, providing a sharp increase in pressure at the outlet nozzles.

Thus, the technical result indicated above is achieved.

This technical solution meets the criteria of "novelty" and industrial applicability.

Claims (1)

An electromagnetic membrane valve, comprising a housing with inlet and outlet pipes (cavities) installed in it, a cover mounted on the cover of an electromagnet with a movable armature, a membrane, characterized in that it additionally contains two bases fixed to the housing, a second output pipe, and a second electromagnet with a movable anchor mounted on the second cover, the lower plane of the membranes overlaps the inlet openings of the outlet pipes, each membrane is fixed between the base and the cover, each cover has a channel, associated with the corresponding locking device made in the lid and consisting of a cavity, in the final sections of which there are holes that can overlap with a ball that can move in this cavity along its axis, a rod is installed between the ball and the armature of the electromagnet.