RU219986U1 - Device for automatic ventilation of the greenhouse - Google Patents

Abstract

The utility model relates to the field of agriculture and household plots and can be used in the construction of a greenhouse for its automatic ventilation. The technical result consists in increasing the speed of installing the valve in the greenhouse. The device for automatic ventilation of the greenhouse is made in the form of a valve that can be built into the surface of the greenhouse. The valve contains a hydraulic cylinder with a working fluid, while the hydraulic cylinder is attached through the hydraulic cylinder attachment point to the insert, and the insert is attached to the body at a right angle through the insert attachment point to the body, ensuring that there are no additional parts around the hydraulic cylinder. From above, the rod of the hydraulic cylinder is attached to the cap with the help of an attachment unit with the possibility of shifting up and down. The cap is connected with the insert by means of attachment points by springs, which return the device for automatic ventilation of the greenhouse to the closed state. 2 ill.

Description

The utility model relates to the field of agriculture and household plots and can be used in the construction of a greenhouse for its automatic ventilation.

A device (US 5236124 A) is known for automatic ventilation of buildings, such as winter gardens, glazed terraces and greenhouses. The known device contains a frame that contains a hydraulic cylinder filled with a working fluid, a hydraulic cylinder piston, which is driven by a temperature-sensitive filler. When the air in the greenhouse is heated, the heat-sensitive filler in the hydraulic cylinder heats up and expands, setting in motion the piston of the hydraulic cylinder, which, through the piston rod, drives the mechanism that folds the curtain, thereby opening the louver openings for the passage of air.

The described device has a complex structure.

As a prototype of the claimed utility model, a device (RU 179717 U1, 05/23/2018) for automatic ventilation of the greenhouse was selected. The known device consists of a body and a hydraulic cylinder, fastened from below by a hydraulic cylinder attachment to the body, and from above through a fixing unit for the position of the hydraulic cylinder in the body at a right angle with respect to the lower part of the body. In this case, the rod of the hydraulic cylinder is also attached to the cap with the help of the mount. The entire structure of the device can be fixed to the greenhouse with a skirt. The working fluid of the hydraulic cylinder contains granules of a solid filler having a high coefficient of thermal expansion or a paste with a high coefficient of thermal expansion. The diameters of the lower and upper parts of the case are almost equal to the diameter of the cap, in addition, the case includes six parts, namely: four base posts and a skirt.

The device described in the prototype has a complex design, and the size of the housing makes it difficult to quickly install the valve in the greenhouse.

The objective of the claimed utility model is to create a simpler valve in relation to the prototype.

The technical result consists in increasing the speed of installing the valve in the greenhouse.

The claimed technical result is achieved in that the body of the device for automatic ventilation of the greenhouse, made in the form of a valve that can be built into the surface of the greenhouse, containing a hydraulic cylinder with a working fluid, while the hydraulic cylinder is attached to an insert fixed in the grooves made on the fixation unit of the upper part of the body at a right angle to the body, while the hydraulic cylinder rod is inserted into the cap from above with the possibility of shifting up and down, the springs are fixed on the cap fastening points on one side, on the insert fastening points on the other side, the hydraulic cylinder is fixed to the body through a fixed in grooves on the body of the insert, ensuring that there are no additional parts around the hydraulic cylinder.

The purpose of the device for automatic ventilation of the greenhouse is due to the fact that it can be built into any surface of the greenhouse, the valve hydraulic cylinder is attached to the body at a right angle through the insert, and the hydraulic cylinder rod is attached to the cap with the possibility of displacement together with the cap up and down, thus that when shifted upwards, the cap opens a hollow hole in the body, providing air access to the inside of the greenhouse, and when shifted down, the cap covers the hollow hole in the body with its surface, the air flow stops.

In FIG. 1 shows a view of a device for automatic ventilation of greenhouses, made in the form of a valve in the open state;

In FIG. 2 shows a view of a device for automatic ventilation of greenhouses, made in the form of a closed valve, where:

1 - body (in everyday life we call the wheel)

2 - hydraulic cylinder

3 - hydraulic cylinder rod

4 - springs that return the device for automatic ventilation of the greenhouse to the closed state

5 - hydraulic cylinder attachment point to the insert

6 - attachment point of the insert to the body

7 - cap

8 - attachment point of the hydraulic cylinder rod to the cap

9 - insert

10 - hole

11 - mounting disk

12 – knot of fastening of a compression spring to a cap

13 – knot of fastening of a compression spring to an insert

In FIG. 1 shows the specified device made in the form of a valve for a greenhouse, consisting of a body 1, as well as a hydraulic cylinder 2, which are fastened with an insert 9 using the hydraulic cylinder attachment point to the insert 5 and the attachment point of the insert to the body 6. The attachment point of the insert to the body 6 has two grooves for attaching the insert 9. The rod of the hydraulic cylinder 3, in turn, is inserted into the recess in the cap 7 using the mount of the hydraulic cylinder rod to the cap 8. The springs that return the device for automatic ventilation of the greenhouse 4 to the closed state connect the cap 1 and the insert 9 using the attachment unit The entire structure of the device is attached to the greenhouse using the body 1 and the mounting disk 11.

As seen in FIG. 1 in the open state of the device, the cap 7 has shifted relative to the body 1 and, due to its displacement, an opening 10 has formed, thereby ensuring the flow of air into the greenhouse.

In FIG. 2 shows a device for automatic ventilation of the greenhouse in the closed state. Cap 7 around the perimeter is pressed against the body 1, thereby closing the hollow hole 10 in the body 1, preventing air from entering the greenhouse.

Device for automatic ventilation of the greenhouse works as follows.

When the temperature rises above 22 ° C in the hydraulic cylinder 2, the working fluid, which expands from heat, increasing the volume of the liquid, which in turn pushes the rod of the hydraulic cylinder 3, which, in turn, through the attachment of the hydraulic cylinder to the cap 8, displaces the cap 7 relative to surface of the housing 1, while opening the hollow hole 10, thereby allowing air to freely pass into and out of the greenhouse.

When the temperature drops below 22°C, the working fluid in the hydraulic cylinder 2 decreases in volume due to the properties of the fluid and forms a free space inside the cylinder. Cap 7, under the influence of springs that return the device for automatic ventilation of the greenhouse 4 to the closed state, presses on the rod 3, pulling it into the hydraulic cylinder 2, thereby helping to return the device for automatic ventilation of the greenhouse to the closed state, while the cap 7 is pressed against the body 1 and covers the hollow hole 10 with its surface.

Installation of a device for automatic ventilation of the greenhouse is as follows. First, a hole is cut in the wall or roof of the greenhouse to fit the valve to be installed. Then a rope is passed through the hole to lift the device to the installation site. To perform the following operation, you need to put your hand into the hole and take the valve by the hydraulic cylinder 2. After that, the valve body is drawn into the hole, and the valve is fixed in the greenhouse using the mounting disk 11.

It should be noted that due to the attachment of the hydraulic cylinder 2 to the body 1 through the insert 9 and the absence of additional parts around the thermal actuator, the operation of pulling the valve into the hole is faster, since the body turns out to be less voluminous and easily enters the hole together with the hand, while the hand is not damaged. Thus, the attachment of the hydraulic cylinder 2 to the body 1 through the insert 9 allows you to solve the problem - the creation of a simpler valve in relation to the prototype.

Claims (1)

A device for automatic ventilation of the greenhouse, made in the form of a valve that can be built into the surface of the greenhouse, containing a hydraulic cylinder with a working fluid, which is attached through the attachment of the hydraulic cylinder to the insert, and the insert is attached to the body at a right angle through the attachment of the insert to the body, disk fasteners, while from above the hydraulic cylinder rod is attached to the cap using a fastening unit with the possibility of moving up and down, the cap is connected to the insert by springs that return the device for automatic ventilation of the greenhouse to the closed state, through the fastening points on the cap and the insert, characterized in that the fastening of the hydraulic cylinder to the body is made through an insert fixed in the grooves on the body, ensuring that there are no additional parts around the hydraulic cylinder.