RU2615344C1 - Device for automatic liquid discharge - Google Patents

Abstract

FIELD: mechanics.

SUBSTANCE: device contains a container with an inlet and an outlet and a float. The float is located in the inlet nozzle above the outlet and has a conoidal shape. The float contains, passed through its center, the fixed aeration tube with the nozzle and the valve to connect with the atmosphere. The underfloat chamber is installed under the inlet trough. The chamber is connected to the outlet pipe tapering downwards. The upper end of the aeration tube is rigidly attached to the container floor slab. The lower end of the tube is rigidly attached to the crosspiece in the underfloat chamber. The cylinder bodies with returned springs are rigidly attached to the lower part of the trough. The cylinders covers have the guiding tubes. The guiding racks are passed through the guiding tubes. The racks are designed as adjusting screws. The upper ends of the racks are rigidly attached to the side walls of the float. The lower ends of the racks are fixed by adjustable nuts inside the cylinders. The float in the container is separated by console partition from the fluid inlet area from the feeding pipeline. The lower end of the partition with the gap is located toward the bottom of the container.

EFFECT: simplification of design and reduction of material consumption.

3 cl, 1 dwg

Description

The invention relates to agricultural production, and more specifically to a device for automating irrigation, and also provides the automatic supply of proportional volumes of liquid to consumers, where automatic supply of specified volumes of liquid with a constant flow rate to consumers is required.

A device is known with a self-directed water outlet, containing a container installed in the housing, made in the form of a tray, over which a water supply pipe, a siphon and a drain pipe are placed, the tray having a wedge in longitudinal section, the lower part of which is expanded at the base, and in its place a bend installed a rotary axis (Copyright certificate SU No. 453472, E03D 1/20 of 12/15/1974).

The disadvantages of this device are the low reliability of the rotation unit due to the significant wear of the rotary axis and the difficulty of centering the specified axis to ensure the operation of the rotary mechanism, as well as the limited use of the device due to the presence of a siphon device, the effectiveness of which largely depends on the difference in the levels of the device and the outlet of the drain pipe .

A tank with automatic water outlet is known, comprising a tank with an upper inlet, a valve located above the outlet, a rod placed concentrically to it with a cylindrical pipe, a float mounted on the rod with vertical movement, a float limiter and an auxiliary float, the latter is placed on the pipe and mounted on a rod installed with the possibility of vertical movement and equipped with an elastic disk located above the pipe and blocking its hole (Auto Russian certificate SU No. 969846, E03D 1/16 dated 10.30.1982).

However, the presence of two nodes of the valve seal and the elastic disk in it makes the device unreliable during slow filling of water, and the need for accurate mutual alignment of the tank, cylindrical pipe and other elements determines the stringent requirements for the design of the tank.

A flushing device with a self-guiding liquid outlet is known, including a tank with an inlet and outlet nozzles, a flushing valve with a stem connected to the float, while it contains a screw attached to the float and equipped with an adjusting nut, while the tank is equipped with a bracket with an elastic element pivotally attached to it , one end of which is spring-loaded, and the other interacts with the adjusting nut, the valve stem is equipped with a slider, and the float is equipped with a rod with a groove in which the slider is located (Copyright certificate Your SU No. 1032128, E03D 1/16 dated 07/30/1983).

However, the presence of a flush valve filled with water, connected by a rod, a rod with a groove and connected to the float makes the device unreliable during slow filling of water, and the need for accurate mutual alignment of the tank, valve, and other elements determines the strict requirements for the design of the tank.

The closest in technical essence to the proposed one is a device for automatic portioned dispensing of liquid, containing a container with inlet and outlet openings, a valve located above the outlet with installed in guides with the possibility of vertical movement of the rod and floats, the upper of which is installed on the rod freely, and the lower fixed on it rigidly, the valve stem is equipped with a locking mechanism made in the form of a conical limiter and fi Satoru having mounted in horizontal guide rod which is kinematically related to the location on the guide rod double-arm lever, one arm of which is provided with a counterbalance, and set to engage the upper float (Author's Certificate SU №1711724, A01G 25/02 from 02/15/1992).

The disadvantage of this device is cumbersome and, as a result, a large metal consumption. In addition, the complexity of the device associated with the valve, rods, movable and fixed floats, and spasmodic suction of the valve to the seat make the device unreliable for its automated operation.

The technical result from the use of the claimed invention is to simplify the design and reduce material consumption.

The technical result is achieved in that a device for automatic portioned liquid delivery containing a container with inlet and outlet openings, a float, guide racks and a travel stop, a fixed aeration plastic tube is mounted along the axis of the float with a nozzle directed towards the inlet part of the funnel installed in the subfloat chamber, while the nozzle of the aeration tube is placed in a subfloat chamber with a downward diverging pipe, and the float is made conoidal with the possibility of for its vertical movement along a stationary aeration plastic tube, to the walls of the inlet funnel in the subfloat chamber, in the lower part of the funnel, cylinders with guide racks, return springs and stops are fixed, while the lower and upper parts of the cylinders are made with caps provided with guide tubes through which freely missed racks, and the upper ends of the racks are rigidly connected to the walls of the float conoidal shape.

In addition, the racks are made in the form of adjusting screws, and the stops placed on the free ends of the racks are made in the form of adjustable nuts fixing the return springs in the cylinders.

In addition, a fixed mounted aeration plastic tube with a lower end with a nozzle placed on it is fixed to the cross in the subfloat chamber.

The technical result is expressed in the fact that during the filling period the conoidal float is in the lower position and overlaps the inlet funnel in the subfloat chamber, and for supplying air to the vacuum region a stationary aeration plastic tube with a nozzle is installed, the latter is located in the subfloat chamber with a downward diverging pipe As a result, the ejection coefficient increases and the capacity of the inlet funnel increases. The water level in the tank is stabilized by a conoidal float and the float itself regulates the discharge of fluid through the inlet funnel with the ability to move along a stationary aeration plastic tube with a nozzle, the resistance to movement along the plastic tube is minimal, since its wall roughness is minimal, and the cut in the float exceeds the diameter of the tube itself .

The analysis of the technique, including a search by patent and scientific and technical sources and the identification of sources containing information about analogues of the claimed invention, made it possible to establish the absence of a technical solution in the sources characterized by the signs, identical features of the proposed invention. The definitions from the list of identified analogues of the closest in the totality of the features of the analogue made it possible to establish a set of essential distinguishing features in relation to the technical result perceived in the claimed device set forth in the claims.

Therefore, the claimed invention does not follow for specialists explicitly from the prior art and is the result of the creative work of the inventor.

Therefore, the claimed invention meets the condition of "inventive step".

The drawing shows the proposed device for automatic portioned delivery of liquid.

The device consists of a tank 1, which is filled with liquid from the supply pipe 2 with an adjustable valve 3. To release the liquid from the tank 1, a conoidal shape 4 floats over the inlet funnel 5. The conoidal shape 4 floats inside which a stationary aeration plastic tube freely passes through the center 6 with a nozzle 7 and having a valve 8 connecting to the atmosphere. Under the inlet funnel 5, a sub-float chamber 9 is connected, connected to a downward tapering pipe 10. The upper end of the fixed aeration tube 6 is fixed rigidly to the floor slab 11 of the tank 1, and the lower end is fixed rigidly to the crosspiece 12 in the sub-float chamber 9. Attached to the bottom of the funnel 5 rigidly the cylinder bodies 13 and 14 with return springs 15 and 16. The caps of the cylinders 13 and 14 have guide tubes 17 and 18 through which the guide posts 19 and 20 are passed. The posts 19 and 20 are made in the form of control screws. The upper ends of the uprights 19 and 20 are attached rigidly to the side walls of the float 4 of a conoidal shape. Inside the cylinders 13 and 14 there are lower free ends of the struts 19 and 20 with return springs 15 and 16, which are fixed with adjustable nuts 21 and 22. The downwardly tapered pipe 10 is connected to the downstream pipe 23 of the consumer. The conoidal shape of the float 4 in the tank 1 is separated from the liquid supply zone from the supply pipe 2 by the cantilever wall 24, the lower end of which is located with a gap towards the bottom of the tank 1.

A device for automatic portioned dispensing of liquid works as follows.

During the filling of the tank 1 from the supply pipe 2 with an adjustable valve 3, the conoid-shaped float 4 is in the lower position and it overlaps the outlet funnel 5. As the filling is complete, the liquid level in the tank 1 gradually rises to the flooding location of the float 4 for its automated upward movement fixed aeration plastic tube 6. The lifting height of the float 4 of the conoidal shape is limited by the height of the struts 19 and 20 and the free lower end connected to them by means of springs 15 and 16, to which are fixed with adjustable nuts 21 and 22, located inside the cylinders 13 and 14, respectively, when the float of the float 4 is conoidal in shape, fluid flows through the inlet funnel 5 into the subfloat chamber 9. The float 4, keeping the inlet funnel 5 in the liquid in a submerged state, provides a constant pressure in the subfloat chamber 9 before the fluid enters the outlet pipe which tapers downwardly 10. In this case, the liquid from the tank 1 enters the funnel 5, then into the subfloat chamber 9, and from there into the pipe 10 tapering downward, and then to the discharge pipe 26. The shape of the funnel, like the float, is made in conoidal shape, which reduces the hydraulic resistance in the inlet of the funnel 5. When the fluid moves in the discharge narrowing pipe 10, the flow narrows and its velocity increases, resulting in a vacuum . At the same time, air is sucked in through the stationary aeration plastic tube 6 with the nozzle 7, while simultaneously increasing the liquid flow rate, and prevents the process of cavitation (vortexes) to prevent erosion and destruction in the zone of liquid discharge into the discharge pipe 23.

The hydraulic mode in the tank 1 during operation of the float 4 of the conoidal shape is characterized by a smooth gradually calming level due to the cantilever wall 24, and this also affects the decrease in the oscillation of the float 4 when moving it freely along the aeration plastic tube 6 and increases the reliability of the whole.

The volume of the float, its dimensions (diameter and height), as well as other structural parameters of the device elements are determined by calculations known in hydraulics, which allows to reliably provide the functionality and design features of the device for discharging liquid to the consumer.

In the future, the process of the device is automated. The period of operation of the device depends on the adjustment of the crane 3.

Thus, the proposed device allows to simplify the design by eliminating the valve, one float, to simplify the limiter and the locking mechanism with the shortening of the racks and reduce metal consumption. The presence of guide racks in cylinders with release springs with clamps in the form of adjustable nuts and the most stationary aeration tube prevents the deflection of the float from the conoidal shape from vertical movement.

Claims (3)

1. Device for automatic portioned dispensing of liquid, containing a container with inlet and outlet openings, a float, guide racks and a travel limiter, characterized in that a fixed aeration plastic tube is mounted along the axis of the float with a nozzle directed towards the inlet part of the funnel installed in the subfloat chamber, while the nozzle of the aeration tube is placed in a sub-float chamber with a pipe that tapers downward and the float is made conoidal with the possibility of its vertical After moving along a stationary aeration plastic tube, cylinders with guide racks, return springs and stops are fixed to the walls of the inlet funnel in the subfloat chamber at the bottom of the funnel, while the lower and upper parts of the cylinders are made with caps provided with guide tubes through which the racks are freely passed, moreover, the upper ends of the struts are rigidly connected to the walls of the float conoidal shape. 2. The device according to claim 1, characterized in that the struts are made in the form of adjusting screws, and the stops placed on the free ends of the racks are made in the form of adjustable nuts fixing the return springs in the cylinders. 3. The device according to claim 1, characterized in that the motionlessly mounted aeration plastic tube with the lower end, with the nozzle placed on it, is fixed to the cross in the subfloat chamber.

Images