SU123186A1 - Device for emergency discharge of brake train line - Google Patents

Description

Prior art devices for emergency discharge of the brake line are known, comprising a valve controlling the communication of the brake line with the atmosphere connected to the trunk, one side of which is subject to atmospheric pressure, and the other to the air pressure in the distribution chamber communicated (if necessary in emergency discharge line) with a source of compressed air.

The aim of the invention is to provide emergency discharge of the line in case of a train break or open stop crane in the tail section of a long train while preventing the possibility of spontaneous emergency discharge of the line when releasing the brake or when switching to a newer charge pressure.

According to the invention, for this purpose, an excitatory valve is opened, opened by the valve or diaphragm of the crane balancing organ in the final release position, and the air distributor located in series with this valve provides the communication of the channel opened by the excitatory valve to the distribution chamber in the event of a break. line or open the stopcock, and interrupt this message when the brake is released or when switching to a higher charge pressure.

The drawing shows a diagram of the main part of the described device.

The device contains two diaphragms / and 2. The upper diaphragm / is equipped with a pusher 3, which ends at the upper end plane W; the street 4, connected with the 1st diaphragm 2 and the sealed rubber cuff 5. The sleeve 4 has an axial channel O, leaving into the hole of the rolling valve seat at the lower end

 123186-2 -

bushings. N. At the end of the channel 6 goes into the side opening 7. The lamellar n-laUy-interacts with the valve seat at the lower end of the sleeve and with the lower stop 9. The spring 10 pushes the valve 8 up; The fragments 1 and 2 are delimited between cavities 11, / 2 d ../ 3 .. „Poibst 11 over diaphragm 1 is connected by channel 14 with cavity 15: Channel 16 with throttle bushing 17 cavities 11 and 15 communicate with the brake cylinders of the locomotive or with control camera brake relay. The cavity 12, enclosed between the diaphragms 1 and 2, is communicated through the throttle hole 18 with the reservoir of time 19 of the machinist's tap. The cavity 13 under the diaphragm 2 through the channel 20 is in communication with the distribution chamber 2} of the stall valve 22, which controls the communication of the brake line with the atmosphere. Channel 23 is directed to the saddle is not proven on the diagram of the excitatory valve.

The scheme is shown in the train position. The valve 8 is pressed by the spring 10 against the stop 9. The diaphragm system is in an equilibrium position, in which the movable seat of the sleeve 4 is opened by the valve 8. In the event of a rupture or opening of the stop valve in the tail of the train, the exciter valve opens the air inlet to the channel 23. Air passes (on the way 6-7-20} to the distribution chamber 21 of the stall valve 22 and actuates it, producing an emergency discharge of the line.

When releasing the brake or tphi to a higher charge pressure, the air pressure acting on the diaphragms I and 2 bends both diaphragms or one diaphragm 2 downward. The movable saddle of the sleeve 4 is closed by the valve 8, and this prevents the possibility of spontaneous emergency discharge of the line, despite opening of the excitatory valve with the valve or diaphragm of the equilibrium organ of the crane operator.

The subject is invented and

Claims (4)

1. A device for emergency discharge of the brake line of a train, comprising a valve controlling the message of the brake line to the atmosphere, articulated with a piston, one side of which is subject to atmospheric pressure, and the other to air pressure in the distribution chamber, the distribution chamber with compressed air applied an excitatory valve opened by the pressure valve or diaphragm of the surgeon's balancing organ in its extreme release position, and located in series with this valve, the air distribution unit, which provides the communication of the channel opened by the excitation valve, with the distribution chamber, in the event of a line break or stop-crane, and interrupting this message npsi brake release or when switching to an increased charge pressure. 2. The form of the device according to claim 1, characterized in that the air distribution body incorporates a valve interacting with a movable seat associated with a system of two diaphragms, of which the top is from the upper side under the action of pressure in the brake cylinder or in control The brake chamber of the relay, the bottom of the lower side is the node's effect of pressure in the distribution chamber, and the cavity between the diaphragms through the throttle opening communicates with the reservoir of the crane operator's time. 3. The form of the device according to paragraphs. 1, 2, characterized in that the valve cavity of the air-distributing body communicates with the cavity above the upper diaphragm, and the channel of the movable valve seat communicated with the cavity under the lower diaphragm and with the distribution chamber. 4. The form of the device according to paragraphs. 1-3, characterized in that the valve of the air-distributing body is provided with a stop that holds it in the equilibrium state of the system of diaphragms in the open position.