SU654191A3 - Fluid switch - Google Patents

Description

54) LIQUID SWITCH

one

The device is intended primarily for use in the construction of logical and storage units.

Liquid switches are known in which the locking element moves freely in the housing, dividing it into two chambers, and in extreme positions the locking element closes the supply channel.

The purpose of the invention is to simplify the design of a known switch, so that the precision in manufacturing parts is less affected by its operation.

For this, in the proposed switch, the locking element is designed in the form of a ball, which is installed in a cylindrical housing with a diametrical clearance, which serves as a throttling gap. The feed channel is located radially, and the discharge channel is axially and is introduced into the housing through the base.

The feed channel at any position of the locking member remains open, which reduces the accuracy requirements for the de-down switch.

The drawing shows the described switch section.

In the housing 1 of the switch there is a cylindrical working cavity 2 in which the locking element 3 is located, which is a ball. The diameter of the cylinder is greater than the diameter of the ball

a ring throttling gap is formed.

Near the lower (according to the drawing) base of the cylinder, an axial feed channel 4, located

radially, and along the central longitudinal axis of the cylinder - the outlet channel 5, the central tide 6 is made on the cylinder base. Channel 7 is led to the opposite base of the cylinder, and the central tide 8 is drawn on the very base No return line function. . The feed channel 4 is permanently connected to a source of control pressure, such as a pump, and is constantly open.

The locking element 3 in its two extreme positions overlaps the channels 5 and 7. When the ball closes the outflow channel 5, the inlet channel 4 is open. Channel 7 communicates the working cavity 2 with a simple shut-off valve (not shown in the drawing), which either unlocks or locks the line. Alternatively, ycTpoftCTjeacanZl 7 can also communicate with the pressure source. In the positions shown in the drawing, the feedback channel 9 is blocked by a locking element 3 pressed against a tide in 4

With a decrease in pressure / in the supply canap 4, the ball 3 will be pressed to the tide 6, closing channel 5 and opening channel 7. With a further movement of 10 pressure in channel 4, the ball returns to its original position, shown in the drawing,

The switch thus behaves like a transistor in which (5) the application of a control voltage to the base interrupts the current from the emitter to the collector, i.e. this switch is a hydraulic analog of the electric element and as such arbitrary circuit solutions.

Claims (1)

The invention of the liquid switch, primarily designed for logic devices, with a locking element disposed with the freedom of longitudinal movement from one extreme position to another in a housing, having a permanently open feed and overlapping discharge channels, so that between the inner walls of the housing and the shutoff the element has a throttling gap, which is also distinguished by the fact that, in order to simplify the construction, the locking element is designed as a ball, and the housing is in the form of a cylinder, whose anal radig1lno located near the base, and otvodshtsvy channel - and axially introduced inside the cylinder through the base.