SU657115A1 - Drain flushing machine working member - Google Patents

Description

The invention relates to the field of melio-reactive technology - draining machines, including a pressurized cod, a water supply tank and a washing head with a movement mechanism, which is intended for cleaning drains from products of the wedge sh. A working part of the machine for washing the drains is known, comprising a hydraulic washing head and a mechanism for pulling the water supply hose with a hydraulic drive ij. The disadvantages of the known working body are the long idling time of the dragging mechanism and the increased water consumption for its drive. Closest to the invention to the technical essence and the achieved result is the working body of the machine for flushing drains with spring-loaded valves of the hydraulic distributor 2j. The disadvantage of the known working body is E la; the complexity of the design JH, as a blindness, low reliability. The purpose of the invention is to increase the reliability of work. This is achieved by the fact that the valves of the hydraulic distributor are installed along the ends of the piston with the possibility of interacting with them, rigidly interconnected by means of rods, and in the rod are made to the channel connecting the holes of the piston with the atmosphere. The drawing shows the proposed working body of the machine for washing drains. It consists of a cylinder 1 with a hollow rod 2 with a piston 3 and two plates 4 inside. The plates are rigid. interconnected by rods 5, which are located in through cavities 6, pistons 3. The plates are spring-loaded relative to the body of cylinder 1 by springs 7, the body of the hollow rod has inlets 8 and exhaust channels 9 and 1O, and a wash is fixed on the front of the pack. head 1.1. On the outer surface of the case pilinpr 1

Wall Street: Expanded tops 12 made in the form of parallelograms

The proposed working body of the machine for washing drains works as follows.

Water under the pressure created by the injection pump of the draining machine is fed into the hollow rod 2, where the separation of the flow occurs. A large part of the water enters the flushing body 11 and, out of its frontal and rear openings, erodes soil deposits located in the cavity of the pipes being cleaned.

A smaller part of the water through the inlet holes 8 enters the working cavity of the cylinder 1.

At the time of operation, when the piston 3 is in the leftmost position, as shown in the drawing, the lera plate 4 is pressed by the force of the left spring 7 to the front surface of the piston, and the right is pressed from the end surface by rods 5. Water entering the left working cavity of the cylinder, pressure on the inner surfaces of the cylinder and the piston, but since the cylinder is held in place by the expanding stops 1.2. This movement to the right is obtained by the piston 3 with the hollow rod 2 and the water supply hose. Thus, the working stroke of the working member is made. During the working stroke, the water entering through the right inlet 8 into the right cavity of the cylinder, through the through cavities 6 of the pores 3 and the exhaust channels 9 and 10, expires into the cavity of the treated water, and the right spring 7 compresses. The stroke continues until the force of the spring of the right spring 7 does not exceed the force of the water pressure in the left cavity of the cylinder. At this moment, the pressing of the plate 4 to the face surface of the piston 3 n occurs. The left plate is pressed from the piston by means of rods 5. At the same time, the water supplied under pressure through the inlet 8 into the main cavity of the cylinder presses already on the internal surfaces of the right working cavity of the cylinder, but since the piston

The 3 n 1SHLMN rod 2 is held on the spot by friction forces from the weight of the water supply hose and reactive forces from the outflow of water from the rear openings of the flushing head 11, then the cylinder 1 with the expanding stops 12 receives movement. . During idling, the water entering through the left inlet 8 into the left cylinder cavity through the through cavities 6 of the piston 3 and the exhaust channels 9 and 10 expires into the cavity of the drain being cleaned, while the left spring 7 is compressed.

The idle stroke of the working organ continues until the pores until the force of compression of the spring of the spring 7 exceeds ycivine due to the water pressure on the piston in the right cavity of the cylinder. At the same time, the left plate 4 is pressed against the end surface of the piston 3, and the right is pressed. This ends one cycle of the work of the working body and begins the next cycle, similar to that described, etc.

Formula inventions

The working body of the machine for flushing drains, containing a flushing head and a mechanism for pulling through the water supply system of the hose, consisting of a hydraulic unit, a drill hole, a stem, a hydraulic distributor with spring-loaded valves, and expanding stops, which are in order to improve the reliability of operation, the valve-mounted distributors are installed along the ends of the piston with the ability to interact with them, rigidly interconnected by strings, and the channels connecting the ports of the piston with the atmosphere are filled in the rod.

Sources of information taken into account in the examination

1. USSR author's certificate

No. 372316, cl. E O2 B H / OO, l971.

2. USSR author's certificate

N9 519523, cl. E O2 B 11 / OO, 1975. S 7 S 5 C 8