RU14391U1 - LOCKING AND STARTING DEVICE - Google Patents

Abstract

The utility model relates to fire fighting equipment and is intended for the automatic supply of fire extinguishing |; liquids to it, being in fire extinguishing installations, for example, modules. The locking-starting device comprises a housing with input and output channels and a saddle. A locking body in the form of a cylindrical piston is located along the axis of the housing in the inlet channel. A sealing lip is made on the saddle side of the inlet channel. The cylindrical piston interacts with the sealing edge of the seat with its cone end face. The cylindrical piston is spring-loaded against the seat. The spring is located between the end face of the piston and the nut with an out-of-hole hole. The nut is located in the inlet channel and serves to adjust the spring. The shut-off element is controlled by an electromagnetic drive and an open drive through a pusher. The latter is made stepwise. The manual drive is made cam. The technical regulator of the utility model is to increase the reliability and efficiency of the locking device. 1 s.p. f-ly, 1 ill.

Perfection

Description

 device

The utility model relates to fire fighting equipment and can be used in fire fighting installations (modules) with automatic supply of extinguishing fluid.

A shut-off and start-up device for automatic fire fighting systems is known, which is a shut-off valve with electromagnetic control and comprising a housing with an inlet pressure and outlet chambers, a spring-loaded main shut-off orifice overlapping the outlet chamber, and an additional two-way control valve with a start-up automatic electromagnet assembly blocking the channels, which connect the outlet chamber of the main locking member with the inlet chamber and drainage (see RU 2114661C1, class A62C37 / 38, 1998).

The main disadvantage of this device is the presence of an additional control valve, which reduces speed and reduces the reliability of operation of the locking-starting device as a whole. In addition, it does not have a manual backup. Serves for actuating the locking and starting device in case of a malfunction of the electromagnetic drive.

A locking and starting device is known in which there is both an electromagnetic drive and a manual one (see US 4,544,128 A, class P16K 31/05, 1985)

A 62C37 / 38 F16K31 / 02

In addition, the device contains a housing with an input and

output channels and a saddle, a locking member located in the housing along its axis, interacting with the saddle and controlled by an electromagnetic drive and a manual drive through a pusher.

The specified device is adopted as a prototype, since it is the closest in technical essence to the analogue of the claimed utility model.

The disadvantage of this known device is the relative complexity and low reliability of the device, in addition, when dismantling the electromagnetic drive, it is necessary to empty the container on which the device is installed, and if the electromagnetic drive is disturbed, considerable effort must be put into the manual drive to bring it into action.

The technical problem to which the utility model is aimed is to increase the reliability and efficiency of the locking and starting device while simplifying the design and reducing the weight and size characteristics, as well as reducing the effort on the manual drive.

The technical result is achieved by the fact that in the locking-starting device containing a housing with input and output channels and a saddle, a locking member located in the housing along its axis interacting with the saddle and controlled through the pusher with electromagnetic wrench and manual gear, on the saddle from the side the inlet channel has a conical surface, and the locking member is located in the inlet channel and is made in the form of a cylindrical piston with one conical end that interacts with the conical surface of the saddle, and

The cylinder piston is loaded sideways with a spring,

located between the other highlander and a nut with a bore located in the inlet channel and used to re-fill the spring, while the pusher is made stepwise, and the manual cam drive. In addition, faces are formed on the outer surface of the piston, forming a passage for the working medium with the cylindrical surface of the inlet channel.

All of the above essential features affect the technical result and are in a causal relationship with it.

In FIG. 1 shows a cross-sectional view of a locking and starting device.

The locking-starting device comprises a housing 1 with an input 2 and an output 3 channels and a seat 4. A sealing edge is made on the saddle 4 from the side facing the output channel. In the inlet channel 2 coaxially with the axis 5 of the housing 1 there is a locking member in the form of a cylindrical piston 6 with one conical end 7 interacting with the sealing edge of the seat 4. The cylindrical piston 6 is spring-loaded towards the saddle 8, which is located between the other end 9 of the piston 6 and a nut 10 with a through hole 11. A nut 10 is placed in the inlet channel 2 and serves to adjust the spring 8. On the outer surface of the piston 6, faces are formed that form a passage for the working medium with a cylindrical surface of the inlet channel 2 (extinguishing th liquid). The locking element is controlled via a stepped pusher 12 with an electromagnetic tee wire 13. The pusher 12 is connected to the armature 14 of the electromagnetic drive 13. In case of a malfunction of the electromagnet “1st drive 13, the locking and starting device is equipped with

cam manual drive (understudy) 15. Smaller gear

the pusher 12 is facing the end face 7 of the piston 6, and the large step is toward the cam surface of the manual drive 15.

Lock-starting device operates as follows. In the standby state, the conical end 7 of the piston 6 is pressed against the sealing edge of the seat 4 by the force of the spring 8 and the pressure of the working medium (extinguishing fluid) in the tank (module). The locking orthan piston 6 blocks the access of the working medium to the output channel 3. The electromagnet is de-energized.

In the event of a fire, the sieve enters the electromagnetic drive 13, which acting through the armature 14 on the stepped pusher 12. The pusher 12 pushes the piston 6 from the seat 4 with its smaller step, compressing the spring 8. This opens the output channel 3, through which fire-retardant liquid from the input channel 2 is either discharged into the atmosphere to the places of the fire blunting, or it is supplied to the automatic fire blunting installations when the input channel is connected to the supply line.

In the event of a malfunction of the electromagnetic actuator 13, the locking member is moved to the deflected position by the manual actuator 15, the cam of which is actuated by a step pusher 12.

Claims (2)

1. The locking-starting device, comprising a housing with input and output channels and a saddle, located in the housing along its axis, a locking member interacting with the saddle and controlled through an electromagnetic drive, and a manual drive, characterized in that the saddle from the input channel the sealing edge, and the locking element is located in the inlet channel and is made in the form of a spring-loaded cylindrical piston with one conical end that interacts with the sealing edge of the saddle, the spring loading cylindrical the piston toward the seat, installed between the other end of the piston and a nut with a bore located in the inlet channel and used to adjust the spring, while the pusher is made stepwise, and the manual drive is cam. 2. The device according to p. 1, characterized in that on the outer surface of the piston there are faces that form a passage for the working medium with the cylindrical surface of the inlet channel.