SU1760341A1 - Device for batching filler for luminous lamp - Google Patents

Abstract

Use: in the manufacture of fluorescent lamps. The essence of the invention. when moving the closure body in the form of a piston 7 with a rod 8, the output of the capillary tube 2 communicates with an angle connection 3 arranged thereto for connection to a fluorescent lamp, into which a drop of 10 mercury is introduced under the pressure of argon. At the same time, a droplet 9 of mercury enters the capillary tube 2 from the tank 5 through the capillary tube 6, which communicates with the capillary tube 2 between the argon tank 1 and the closure member, the rod 8 of which is hermetically passed through the end of the capillary tube 2. After removing the drop of 10 mercury from the latter, the locking member returns to its original position. 1 silt

Description

The invention relates to lighting engineering, in particular to technological equipment for the manufacture of fluorescent lamps.

A device for metering mercury, containing a container with mercury, a movable tube with an oblique groove, enclosing a fixed tube, and an electromagnetic device for moving upward the movable tube 1, is known.

The disadvantage of such a device is low dosage accuracy due to the possibility of droplet crushing with deposition of small droplets in the portion of the dowel and on the walls of the fixed tube of the dosage device.

The closest to the claimed technical entity is the device for dosing the filler of fluorescent lamps selected as a prototype, containing a container for argon, equipped with a tube connected to the nozzle for connection to the fluorescent lamp through a valve, the stop member of which is connected to the drive of its movement 2

Such a device allows only argon to be metered. Its disadvantage is the impossibility of simultaneously dosing the mercury supplied to the lamp. For dosing of mercury, an additional separate device is required.

The aim of the invention is to increase the efficiency due to the simultaneous dosing of mercury.

The goal is achieved in that a device for dispensing a fluorescent lamp filler, containing a container for argon, equipped with a tube connected to a nozzle for connection to the fluorescent lamp, through a valve, the stop member of which is connected to the drive of its movement, is inserted into a container for mercury

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a capillary tube connected to the tube between the argon tank and the valve, the valve body being designed as a piston with a rod mounted in the tube to which the tube is angled to be connected to a fluorescent lamp, and the tube through which the rod is tightly passed the rod, made capillary.

A comparative analysis of the claimed solution with the prototype shows that the proposed solution is characterized by the presence of a tank for mercury, the features of its connection with the argon supply system, the design and placement of the closure member. Thus, the claimed device meets the criterion of novelty.

When comparing the proposed solution, not only with the prototype, but also with other technical solutions in this field of technology, they did not reveal signs that distinguish the claimed solution from the prototype, which gives grounds to conclude that the criterion meets significant differences.

The drawing shows a variant of the proposed device for dispensing a filler of fluorescent lamps.

The device comprises an argon tank 1 provided with a tube 2 communicating with the nozzle 3 for connection to a fluorescent lamp. At the entrance to the nozzle 3 a valve is placed, the shut-off member of which is connected with the drive of its movement, made in the form of a bellows 4. The device also contains a tank 5 for mercury, made with a capillary tube b communicated with the tube 2. The shut-off member is a piston 7 with a stem 8 entering the end of the capillary tube 2 and connected with a second end to the outer end of the bellows 4. The movement of the stem 8 is carried out tightly due to the presence of the bellows 4. The metered amount of argon is limited by mercury drops 9 and 10.

To feed the filler into the lamp after air has been pumped out of it, the rod 8, which is connected at one end to the bellows 4, drives the piston 7 in the direction of the outlet from the tube 2 by driving (stretching the bellow 4). 2, under the pressure of argon, is transferred into the nozzle 3 from it into the lamp tube, together with the filled tube 2 with argon. Pressure in

tube 2 falls, and the droplet 9 at the exit from the capillary tube 6 experiences a one-sided pressure of argon from the side of the tank 1. Under the action of this pressure of the droplets 9

moves through the tube 2, displacing argon from it, whose pressure is insignificant compared with the pressure from the side of the vessel 1. At the same time, the piston 7 can return to its original position at the end of the capillary

tube 2 before mercury drops are approaching it, since piston 7 does not seal tube 2, but serves as a stop for the movement of drop 10. This end seals the drop. Mercury gradually flows out of the capillary.

pipe 6, as a result of which a new drop 9 is formed, limiting on the side of the tank 1 the metered volume of argon in the tube 2 and being held until the next displacement of the piston 7 by the same pressure

argon on both sides and mercury surface tension.

The described option does not exhaust the designs of the proposed device. In particular, instead of the bellows

A spring-loaded ferromagnetic element rigidly connected to the piston placed in a vacuum system and controlled by a coil placed outside this system can be used.

The proposed device allows mercury and argon to be fed into the lamp at the same time, and also more accurately dispense the flow of mercury, since mercury is supplied under argon pressure, eliminating losses on the way to the lamp.

Claims (1)

Apparatus of the Invention A device for dispensing a luminescent lamp filler, comprising a container for argon, provided with a tube in communication with a nozzle for connection to the luminescent lamp through a valve, the stop member of which is connected to the drive of its movement, that, in order to increase efficiency due to the simultaneous dosing of mercury, a container for mercury was inserted into it, made with a capillary tube connected to a tube between a container for argon and a valve, with the closure member made in the form of a piston with a rod installed in the tube, to which the nozzle is located at an angle for connecting to a fluorescent lamp, and a tube through which the stem is hermetically missed, made capillary. L V brff (&# aJ, t $ 7 41 / -Jx /; / ia 7i i7T -, g