SU1397009A1 - Teat cup - Google Patents

Abstract

This invention relates to agriculture. The purpose of the invention is to simplify operation. The teat cup contains the sleeve I, the nipple tube 2 and the diaphragm 3. The diaphragm 3 divides the interwall chamber into two sections 5 and 7. The check valve 8 faces the variable pressure pipe 6. During the suction stroke, a vacuum is fed through the variable pressure pipe 6, the check valve 8 opens, and in section 5 and 7 a vacuum is established. In the compression stroke, atmospheric pressure is supplied through the variable pressure port 6, the check valve 8 closes. Due to the pressure difference in section 5 and 7 of the nipple tube 2, it bends and simultaneously compresses. 2 hp f-ly, 3 ill. WITH

Description

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The invention relates to agriculture, in particular to teat cups.

The purpose of the invention is to simplify the operation of the teat cup.

Figure 1 shows the teat cup in the rhythm of the suck; figure 2 - section aa in figure 1; FIG. 3 shows a teat cup in a compression stroke.

The teat cup contains a sleeve 1 located in it a nipple tube 2 with a longitudinally mounted diaphragm 3, which is fixed on the inner wall of the sleeve 1 and rigidly connected with the nipple tube 2. The upper part of the diaphragm 3 facing the upper part of the sleeve 1 is equipped with an elastic corrugated elastic insert 4. The diaphragm 3 divides the interstitial chamber of the teat cup into two sections: a variable pressure section 5 communicated with a variable pressure source by a variable pressure connection 6 at the bottom of the sleeve 1, and section 7 a constant pressure. The check valve 8 blocks the opening of the lower part of the diaphragm 3, which is located coaxially with the nozzle 6 of variable pressure, and faces the latter. Podsoskova chamber 9 has a milk outlet 10. Nipple tube 2 is equipped with a suction cup 11 and an elastic corrugated elastic insert 12,

Milking cup works as follows.

The pod chamber 9 through the milk nozzle 10 is connected to a constant vacuum source (not shown). Section 7 of the interstitial chamber of the liner through the check valve 8 is periodically connected to section 5 of the variable pressure, which connects to the source of variable pressure 6 with an alternating pressure source (not shown).

The suction stroke is provided by applying a vacuum through the variable pressure nozzle 6 and the open non-return valve 8 in sections 5 and 7 from the variable pressure source. At the same time, air is removed from section 5, passes into pipe 6, and under the action of a moving air flow and created vacuum, coaxially arranged non-return valve 8 is opened. The same pressure is created in sections 5 and 7, and the diaphragm 3 and the nipple tube

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2 with elastic elastic inserts 4 g and 12 under the action of elastic forces assume a normal open vertical position. The cavities of sections 5 and 7 of the interstitial space are interconnected.

The compression stroke is provided by supplying atmospheric pressure air through a variable pressure port 6 to the variable pressure section 5. At the same time, under the action of the incoming air, the check valve 8 is closed, and in section 7 a vacuum remains. Under the action of atmospheric pressure on one side and vacuum forces on the other side of diaphragm 3, the latter and the nipple tube 2 move with the nipple — relative to the base of the udder towards the constant pressure section 7, the nipple tube 2 becomes compressed and the nipple contracts. At each compression stroke, the check valve 8 closes, the nipple tube 2 and the diaphragm 3 move towards section 7, and the elastic inserts 4 and 12 are expanded. And during the suction stroke, the check valve 8 opens, the elastic inserts 4 and 12 are compressed by the action of elastic forces, and the nipple tube 2 and the diaphragm 3 are returned.

The upper part of the diaphragm 3 and its nipple tube 2 move horizontally from the tact of the contraction to the compression stroke due to the forces of the vacuum with the non-return valve closed, and back again due to the elasticity of the elastic inserts 4 and 12 with the non-return valve open. The lower part of the diaphragm is less mobile, and to increase the reliability of the check valve, in order to reduce its oscillations during movement, it is located below, in the zone of least oscillation, near the milk inlet 10. In addition, in order to reduce the resistance to the outgoing air flow from the section of constant pressure, the valve is fixed on one side, which is located above the orifice of the moving air flow j and serves as a dividing wall for outgoing air flows from both sections of the constant and variable pressures.

Claims (1)

1. A teat cup containing a sleeve with a milk nozzle, dimension. 2 P 70