SU825459A1 - Dispensing tap - Google Patents

Description

(54) DISTRIBUTION CRANE

I

This invention relates to an auto filling technique and can be used in fuel dispensers.

A dispensing valve is known, consisting of a housing with a vacuum channel, a drain pipe with a control tube of a shut-off valve with a saddle, forming an ejector, a controlled valve kinematically connected with a control lever mounted on the side surface of the release mechanism including a lever with a shaft having cuts, balls located in them and a membrane with a cone 0.

The disadvantages of this device are cantilever force transmission from the control lever, since cases of skewing and complex configuration of the housing cavity are possible, which requires high precision manufacturing.

The purpose of the invention is to increase the reliability of work.

To achieve the goal, the valve is equipped with a half coupling, concentrically mounted on the shaft and having grooves yI of the balls on the inner surface, and a pawl fixed on the lever for interacting with the coupling half, while the latter is connected by a spring to the housing to return to its original position.

FIG. I shows the crane, view; in fig. 2 shows section A-A in FIG. one; in fig. 3 shows a section BB in FIG. 2

The dispensing valve consists of a housing 1 with a vacuum channel 2, a drain pipe-3 with a control tube 4, a shut-off valve 5 with a seat 6, a stem 7, a control valve 8 that is kinematically connected to the control lever 9 having a dog 10, and the release mechanism comprising a membrane 11 with a cone 12, a shaft 13. with a lever 14, a coupling half 15 and a ball; ki sixteen.

P4zdatocha 1 crane works as follows.

When you press the lever 9, the pawl 10 rotates a certain angle of the coupling half 15, connected with balls 16 to the shaft 13, which rotates the lever 14 and moves the rod 7, opening the controllable valve 8. Fluid flow from the supply hose, passage through the valve 8, opens the shut-off valve 5 and creates a vacuum between the valve and seat b, which is compensated by air suction through the control tube 4 connected through the annular space between the valve shut-off valve body 5 and housing I with the super-membrane cavity.

When overlapping with the level of the nausea of the hole of the cross-section tube 4, the vacuum in the supermembrane cavity increases dramatically. The membrane 11 leads the cone 12 out of the cavity of the shaft 13. The balls 16 fall through and the shaft 13 disengages from the coupling half 15, and the valve closes under the action of the spring 17.

After lowering the lever 9, the spring 18 of the coupling half 15 brings the kinematic chain to the starting position, and the spring 19 inserts the housing 12 between the balls 16, providing a clutch, the shaft 13 with the coupling half 15. Using the screw 20, the free running of the current 7 can be adjusted to compensate for the inaccuracy of the kinematic chain.

Expected economic effect. from the introduction of these cranes will be approximately 926 thousand rubles. in year.

Claims (1)

1. USSR author's certificate in application number 2616182 / 28-13, cl. In 67 D 5/00, 1978.