JPH0434908Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Field of Application of the Invention) The present invention relates to a water sprinkler for sprinkling water or spraying a chemical solution on plants, bonsai, flower beds, etc.

(Prior Art) The conventional technology of this type of water sprinkler will be explained with reference to FIGS. A valve body 3 also made of metal is provided in parallel to the handshake 1
are connected in communication. There is a third valve inside the valve body 3.
As shown in the figure, a conical synthetic rubber valve body 4 is connected to a valve rod 5 by adhesive, and is pressed by a valve spring 6 provided on the outer periphery of the valve rod 5, so that the valve body 4 is attached to the valve body 3. It is designed to come into pressure contact with the valve seat 8 around the valve hole 7, and the rear end of the valve rod 5 is exposed to the outside of the valve body 3.
It is connected to the operating lever 9. On the other hand, a union screw 3a is integrally formed at the tip of the valve body 3, and a guide pipe 10 having a union collar 10a integrally formed at its rear end is connected to this through a union nut 12 with a packing 11 in between. Note 13
is the water spout at the tip of the guide pipe.

Needless to explain how to use this method, by inserting the water supply hose into the hose connection part 2a of the water supply pipe 2 and pulling the operating lever 9, the valve body 4 moves away from the valve seat 8 against the elastic force of the valve spring 6. The valve hole 7 is opened separately, and water is sprayed from the water spout 13 through the guide pipe 10.The opening degree of the valve hole 7 is controlled by operating the operating lever 9. By opening, the valve body 4 is pressed by the valve spring 6 and comes into pressure contact with the valve seat 8, thereby closing the valve hole 7.

According to this prior art, since the valve body 3 is generally made of metal such as brass, the valve seat 8 formed on it is also naturally made of metal, and therefore the valve body 4 that comes into pressure contact with it is watertight. For holding, it must be made of an elastic body having elastic adhesion, such as synthetic rubber, and the synthetic rubber valve body 4 must of course be integrally fixed to the metal valve rod 5.

Therefore, if the synthetic rubber valve body 4 becomes fatigued, deformed, or damaged due to long-term use and needs to be replaced, the valve body 3 must be disassembled and the valve body 4 and valve rod 5 must be forcibly separated. In addition, the valve body 4 must be glued to the valve rod 5 after peeling off. Such troublesome repair work is impossible in reality.

(Problem to be solved by the invention) The reason why such a troublesome repair process is necessary is that the valve body is made of an elastic material such as synthetic rubber. The technical problem to be solved is to make the above-mentioned repair work and therefore the assembly work easier by integrally forming the valve rod with the same metal.

(Means for Solving the Problems) In order to solve the above problems, the present invention provides a connection between the water supply pipe 2, which is provided by penetrating the inside of the handshake 1, and the valve body 14 through the inside of the valve body 14. In a water sprinkler that sprays water from a spout 13 through a guide pipe 15 and controls the amount of water sprinkled by operating a valve body 16 of a valve body 14 with an operating lever 9, the valve body 14 and the guide pipe 15 The synthetic rubber cylinder 18 for forming the valve seat 17 of the valve body 16 is removably press-fitted into the guide pipe 15.

(Function) Even if the valve body 16 is integrally formed with the valve rod 5 from metal, the valve seat 17 is formed from a synthetic rubber cylinder 18 with elastic adhesion, so the valve body 16 does not move when closed. It is in close contact with the valve seat 17 and there is no possibility of water leaking between the two.

(Embodiment) FIG. 3 shows an embodiment of the present invention, and the main differences from the prior art are as follows:
A female threaded portion 14a is provided at the tip of the bolt, into which a perforated bolt 19 having a partition flange 19a protruding from the outer periphery of the central portion is screwed. This perforated bolt 19 is provided with a stepped portion 19b on its inner periphery on the valve body side, and a cylindrical body 18 made of synthetic rubber such as urethane rubber is attached to the distal end 18 of the bolt 19 in advance.
The bolt 18a is press-fitted so that it slightly protrudes from the end face of the bolt, and can be pulled out by pulling the tip 18a. Then, a guide pipe 15 having a union collar 15a integrally formed at the rear end is connected to the union screw 19c provided with the partition wall 19a of the perforated bolt 19 sandwiched therebetween by means of a union nut 12 with the gasket 11 in between. It is what it is.

If the synthetic rubber cylinder 18 constituting the valve seat 17 becomes fatigued and deformed or damaged due to long-term use, remove the perforated bolt 19 from the valve body 14 by pinching the polygonal outer periphery of the partition wall 19a with a tool. After pulling out the old cylindrical body 18 and replacing it with a new synthetic rubber cylindrical body 18, it is sufficient to simply screw the perforated bolt 19 into the valve body 14 again. In the present invention, the tip of the guide pipe 15 includes the holed bolt 19, but of course the union nut 1 is also defined as the tip of the guide pipe 15.
2, remove the perforated bolt 19 and the guide pipe 15, and then attach the perforated bolt 19 to the valve body 14.
It may be removed from the

(Effects) According to the present invention, a new valve seat can be formed by simply removing the guide pipe from the valve body and replacing the synthetic rubber cylinder at its tip, making the repair work very easy. Furthermore, during assembly, a valve seat with good adhesion to the valve body can be formed by simply press-fitting the cylindrical body into the guide pipe, making assembly work easier.

[Brief explanation of the drawing]

FIG. 1 is a longitudinal sectional front view showing an embodiment of the present invention;
FIG. 2 is an overall external front view of the conventional example, and FIG. 3 is a longitudinal sectional front view of the main parts. 1... Handshake, 2... Water supply pipe, 9... Operating lever, 13... Spout, 14... Valve body, 15...
Guidance pipe, 16... Valve body, 17... Valve seat, 18
...Synthetic rubber cylinder.

Claims (1)

[Scope of utility model registration request] Water is sprayed from the spout through a water supply pipe that passes through the handshake, through the valve body, and through a guide pipe that communicates with the valve body, and the amount of water sprayed is controlled by operating the valve body of the valve body with an operating lever. In the water sprinkler designed to be controlled, the valve body and the guide pipe are removably connected to each other, and a synthetic rubber cylindrical body for forming the valve seat of the valve body is removably press-fitted into the guide pipe. A water sprinkler characterized by: