RU114480U1 - SWITCHING ITEM IN RESERVE SELF-RESCUE - Google Patents

Abstract

 1. A switch point to backup self-rescuers, comprising an input module, an output module, and intermediate modules, tightly interconnected, each of which has cells for backup self-rescuers, a container for used self-rescuers, a fresh air source in the form of a cylinder with compressed air, a chamber for blowing, characterized in that the blowing chamber, rigidly fixed to the body of the item, contains perforated tubes with holes pointing up to down to create an air shower, regardless of the size of the person century, and to supply fresh air a ball valve is used. ! 2. The switching point to backup self-rescuers according to claim 1, characterized in that nozzles for better air dispersion can be inserted into the holes of the perforated tubes.

Description

The utility model relates to rescue equipment and can be used as a stationary point for switching to emergency self-rescuers, resting or sheltering miners in case of emergency.

There is a known point of switching to backup self-rescuers, designed to eliminate the effects of harmful factors in the mine atmosphere (low oxygen concentration in the air, high concentration of harmful aerosols in the air) when switching mine workers to backup self-rescuers in emergency situations. The switching point contains a housing made of separate sections hermetically connected to each other, hermetic doors, containers for backup and used self-rescuers, a fresh air source and a chamber for comfortable breathing, which is mounted on the guide with the ability to move it in height. The breathing chamber is equipped with an arcuate tube with holes through which fresh air enters. The breathing chamber is connected to the top of the section using pivotally interconnected levers forming a rhombus with adjustable friction in the joints (patent for utility model No. 68593 class E21F 11/00 was filed on 02/05/2007, published on 11/27/2007 Bull. No. 33).

The main disadvantage of the known switching point is the unreliable operation of the lever system for connecting the breathing chamber to the diamond-shaped section with adjustable friction in the joints. There is a danger when the frictional force in the joints of the levers of the unauthorized movement of the breathing chamber is weakened when the miner switches to the backup self-rescuer. In addition, it does not provide telephone communication with the mine dispatcher, there is no lighting.

Known switching point to backup self-rescuers (patent No. 101085, publ. 10.01.2011, bull. No. 1), which is a prefabricated metal structure of a modular type. The number of intermediate modules depends on the size of the largest shift working in the hazardous area. Each module has cells for backup self-rescuers, a container for used self-rescuers, a source of fresh air (compressed air cylinder), blower chambers connected through a tap to a compressed air cylinder. Opening the faucet and supplying air to the blower chamber is carried out using the pedal. In the switching point, limit switches are installed on the entrance and exit doors, connected with the console of the mine dispatcher, in case of unauthorized opening of doors, there is a five-liter fire extinguisher, telephone connection.

A disadvantage of the known switching point is the unreliable operation of the tap opening mechanism using the pedal and the inability to supply air in case of breakage, as well as the inconvenience of simultaneously depressing the pedal and preparing the self-rescuer for switching. Another disadvantage is that the blower chamber has a bulky, heavy structure, which must be located on the shoulders of the miner during the switch.

The technical solution of the utility model is to increase the efficiency of using the switching point, the convenience and reliability of its operation.

The essence of the utility model is illustrated by drawings, where in Fig.1 shows a General view of the switching point, in Fig.2 is the same top view.

A switching point to backup self-rescuers is proposed, which is a modular-type prefabricated structure: input module 1, output module 2 and intermediate module 3. The number of intermediate modules is determined based on their number of the most numerous shifts operating in a hazardous area.

All modules are interconnected tightly with a seal in the form of a rubber cord. End modules (input and output) have hermetically sealed doors.

Each module has cells for backup self-rescuers 4, a container for used self-rescuers 5 and a source of fresh air 6 (compressed air cylinder). At the level of the head is a device for blowing 7, consisting of tubes with holes through which fresh air is supplied. The supply tube is connected to the fresh air cylinder by means of a faucet 8. The blower is semicircular in shape, the openings on the tubes are arranged so that fresh air blows the person from top to bottom on three sides. This allows you to effectively clean the area of the miner during the switch, regardless of its growth. Nozzles can be inserted into the openings to better disperse the air and create an air shower. Fresh air is supplied by manually opening the ball valve.

Below is the principle of operation of the switch point to backup self-rescuers.

The switching point has a design that ensures the miner's functional breathing when replacing a used self-rescuer with a backup. Having approached the switching point, the miner enters it, stands in front of the blower chamber and opens the fresh air supply valve. An air shower forms in the chamber, under the protection of which the miner removes the used self-rescuer and is included in the backup. Switching to the backup self-rescuer, the worker closes the tap, thereby stopping the air supply to the blower chamber, and goes to the exit. The next person takes the vacant seat. By opening the tap, it is possible to control (more, less) the supply of fresh air depending on the degree of gas or smoke in the switching point.

The total number of workers simultaneously in the PPRS should not exceed the number of blowing chambers. In the event of shortness of breath, the miner, having removed the used self-rescuer, can first catch his breath under an air shower until normal breathing is restored, and then switch to backup.

The switching point can be used to sit out (waiting for help of rescuers) or to provide primary medical care to victims.

Claims (2)

1. A switch point to backup self-rescuers, comprising an input module, an output module, and intermediate modules, tightly interconnected, each of which has cells for backup self-rescuers, a container for used self-rescuers, a fresh air source in the form of a cylinder with compressed air, a chamber for blowing, characterized in that the blowing chamber, rigidly fixed to the body of the item, contains perforated tubes with holes pointing up to down to create an air shower, regardless of the size of the person century, and to supply fresh air a ball valve is used. 2. The switching point to backup self-rescuers according to claim 1, characterized in that nozzles for better air dispersion can be inserted into the holes of the perforated tubes.