JPS5842035Y2 - agricultural watering valve - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an agricultural watering valve, and more particularly to an improvement in an agricultural watering valve for supplying water to rice fields, fields, etc.

Conventionally, this type of sprinkler valve was equipped with an inverted dish-shaped valve cover and a spindle, so when the valve was opened, the water pressure of the flowing water was applied to the valve cover, causing a rotational action on the valve cover. This had the disadvantage that the valve opening degree naturally changed as the spindle rotated.

The purpose of the present invention is to provide an agricultural watering valve that can eliminate the above-mentioned drawbacks. The spindle and the valve cover are connected by fitting into a protruding pipe that protrudes upward from the center of the valve cover that opens and closes the valve opening, and by fitting and loosely engaging the engagement pin between the protruding pipe and the step. Furthermore, the spindle that is screwed onto the sprinkler valve frame body and the upper end of the sprinkler valve frame body are connected with a lock nut.

An example of implementing the present invention will be explained below based on the drawings.

In the figure, 1 is the water valve frame body, and this frame body 1 is
It has a horse-clamp shape with an opening in the center, and two screw holes at the top.
A truncated cone-shaped valve receiving wall 12 is formed at the lower end, and a connection port 4 for connecting the water supply pipe 3 that protrudes from the installation surface A is formed at the lower end of the valve receiving wall 12, and a valve port 5 is opened at the upper end. has been done.

Then, this connection port 4 is screwed and connected to the water supply pipe 3 and installed on a desired installation surface A, and the outer periphery is surrounded by a block wall B and a part is cut out to form an outflow port 13.

Reference numeral 6 denotes a spindle, which has a circumferential step 7 at its end portion, and a screw 14 is cut vertically from the upper end thereof, and the spindle 6 is screwed into the screw opening 2 at the upper end of the frame body 1. It is screwed into the shaft joint 15 and the valve cover 8 is attached to the end thereof.

A rectangular protrusion 16 projects from the upper end of the spindle 6, into which a single lever bundle C for adjusting the opening is fitted.

The valve cover 8 has an inverted dish shape, and a gasket 18 and a washer 19 are inserted into a protruding rod 17 that protrudes from the center of the lower surface, and the valve cover 8 is tightened and fixed with a fastening device such as a nut 20, and a protruding pipe 9 is provided at the center of the upper surface. The end portion of the spindle 6 is loosely fitted into the projecting tube 9, and the projecting tube 9 is inserted into the projecting tube 9 as shown in FIG.
The engagement pin 10 is inserted and loosely inserted between the step portion 7 and the step portion 7 to connect the two.

Note that 11 is a lock nut, and 21 is a valve seat that fits into a recess 22 on the edge of the valve port 5.

To explain how this sprinkler valve is used, first, the closed valve cover 8 is moved upward by the spindle 6 by rotating the single lever C.

Then, the water supplied from the water supply pipe 3 flows out violently in the direction of the arrow shown in FIG.

At this time, the water pressure of the supplied water causes the valve cover 8 to rotate, but since the engaging pin 10 and the stepped portion 7 are in mere surface contact, only the valve cover 8 rotates and remains independent of the spindle 6. There is.

Further, even if some rotational force is applied to the spindle 6, it is locked by the lock 11, and there is no room for the spindle 6 itself to rotate.

Although the stepped portion 7 and the projecting pipe 9 of the water sprinkler valve of the present invention are connected by one retaining pin 10, it is of course possible to use any number of retaining pins.
It is natural to use it differently when it is stronger and when it is not.

Also, they can be exchanged freely.

As described above, the present invention has a step formed on the circumferential surface of the spindle end, and this step is inserted into a projecting pipe that has an inverted dish shape and projects upward from the center of the valve lid that opens and closes the valve opening. At the same time, an engaging pin is fitted and loosely fitted between the projecting pipe and the stepped portion to connect the spindle and the valve cover, and the spindle and the upper end of the sprinkler valve frame body, which are screwed to the sprinkler valve frame body, are fitted together. It is fastened with a lock nut, and the water supply pressure that flows out when the valve is opened is applied to the valve lid, causing a rotational action on the valve lid, and the spindle does not rotate together with the valve lid, and only the valve lid rotates independently. Therefore, the spindle that adjusts the valve opening does not rotate, and therefore the valve opening does not change naturally, which is highly effective in practice.

Furthermore, the spindle and the valve cover are kept in a relationship with each other by the surface contact of the retaining pin that fits and engages the step part and the projecting pipe, but even if the spindle attempts to rotate even slightly, it will be restricted by the lock nut. It does not rotate at all because it is
Therefore, water can always be supplied with the desired valve opening degree.

Therefore, the intended purpose can be achieved.

[Brief explanation of the drawing]

FIG. 1 is a partially cutaway front view of the agricultural watering valve of the present invention, and FIG. 2 is an enlarged sectional view taken along line X--X. In addition, in the figure 2... Screw port, 3... Water supply pipe, 4... Connection port, 5... Valve port, 1.
...Water valve frame body, 6...Spindle, 7...Step part, 8...Valve cover, 9.
... Projection pipe, 10 ... Engagement pin, 11 ...
...Rocknut.

Claims (1)

[Scope of utility model registration request] The spindle is screwed into the threaded opening of the sprinkler valve frame body, which has a threaded opening at the upper end and a water supply pipe connection port and a valve port communicating with the connection port at the lower end, and has a step on the peripheral surface at its end. This step is shaped like an inverted dish and is inserted into a protruding pipe that protrudes upward from the center of the valve cover that opens and closes the spout, and an engaging pin is inserted between the projecting pipe and the step. This agricultural watering valve has a spindle and a valve cover that are connected by fitting them loosely together, and the spindle that is screwed onto a watering valve frame body and the upper end of the watering valve frame body are fastened with a lock nut.