SU497217A1 - Dosing head for liquid dispensers - Google Patents

Description

one

The invention relates to a filling technique and can be applied to fill vessels with explosive liquids.

Dosing heads for liquid dispensing devices are known, consisting of a measuring glass, a displacement valve mounted in it, an air vent tube and a valve system.

However, these devices cannot dispense explosive liquids, since they do not intend to discharge static electricity.

In order to deflect static electricity to prevent an explosion when filling electrified liquids, benzene nanometer, and to prevent dripping, the dosing head is equipped with a zero electrically conductive rod with a weight mounted on the top of the measuring cup and a guide cylinder and tube, on the upper end there is a link, while the upper end of the rod is located in the guide cylinder and is connected to the drive for moving it in a vertical position, and the lower end is in the tube, and on the lower end of the tube is concentrically lined with a cylinder with a bottom having radial channels communicated with the cavity of the tube.

FIG. 1 shows the proposed dosage2

rocking head, general view; in fig. 2 - section along AA, fng. one.

The dosing head to the liquid dispensing device consists of a measuring cup 1, a displacer 2 mounted therein, an air vent tube 3, a hollow electrically conductive rod 4, at the upper end of which there is a load 5 that moves in the guide cylinder 6 of the tube 7 and has the end of the link, including the roller 8) 1 lever 9 with a groove 10, and on the bottom - a cylinder 11.

The valve system is made in the form of two spring-loaded legs, the top 12 of which are mounted with the possibility of movement along the tube 7, and the bottom 13 are fixedly mounted on the tube 7.

The drive consists of a gear 14 on the drive shaft 15 which is fixed to the lever 9, and on the driven shaft 16 - the drum 17 with the cable 18.

The device works as follows. When the bottle is fed, its neck is uncoupled in nut 19 and needs it, the tube 7 is carried away, which, through lever 9 of the stage 9, causes gear gear 14 and drum 17 to rotate, and the cable 18 is unwound from the drum 17 to the required length. The weight 5 with its mass lowers the rod 4 into the bottle. In this put the window 20 tube

7 are displaced into the cavity of the cup 1, the valve plate 12 closes the inlet opening in the disk 21 and the bottle is filled. A rod 4 immersed in the liquid to be poured off removes static electricity, which is then discharged in a known manner, for example, by grounding.

Air from the bottle during filling is vented through channels 22 in nut 19 and through holes 23 in rod 4. The leakage through leaky liquid flows through channels 24 of cylinder 11 and through the bottom of tube 7 into the bottle.

When moving down the tube 7 through the lever 9 rotates the gear 14 and the drum 17 in the opposite direction. The cable 18 is wound on the drum 17 and lifts the rod 4.

Subject invention

Claims (2)

1. A dosing head for liquid filling machines, consisting of a measuring glass, a displacer mounted in it, an air vent tube and a valve system, in order to prevent an explosion by preventing the tips of static electricity charges when filling electrified liquids, for example, benzene, it is provided with a hollow electrically conductive rod with a weight fixed on its upper end, mounted on the lid of the measuring cup by a guide cylinder and a tube, on the upper end of which the swarm has a link, the upper end of the rod is located in the guide cylinder and is connected to drive to move it in a vertical position, and the bottom - in the tube. 2. The head according to claim 1, characterized in that, in order to prevent dripping, at the lower end of the tube is concentrically reinforced a cylinder with a bottom having radial channels communicated with the cavity of the tube. YES / 7