JPS5832753Y2 - hand cock unit - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a hand cock unit in which a water supply valve attached to a main faucet automatically opens and closes when the hand cock is opened or closed.

BACKGROUND ART Conventionally, with car wash brushes, gardening watering nozzles, and the like, water discharge can only be stopped by opening and closing the main tap, which is very inconvenient.

The present invention solves this problem by making it possible to start and stop discharging water simply by operating a handheld cock.

Embodiments of the present invention will be described below based on the drawings.

FIG. 1 shows an overall view of the hand cock unit, in which an automatic water supply valve 2 is attached to a main faucet 1, and a hand cock 4 is provided at the tip of a hose 3 connected to the water supply valve 2.

Reference numerals 5 and 6 are a car wash brush and a gardening nozzle that can be attached to and detached from the water outlet of the hand cock 4.

FIG. 2 shows a longitudinal sectional view of the hand cock 4, in which the main body 7 on the water outlet side and the main body 8 on the inlet side of the water outlet are joined via an O-ring 9 at a threaded portion 10.11.

The switch button support 12 has a rectangular recess, and one of its four sides is bonded to the main body 7, with a claw portion 13 formed on one side as shown in an enlarged view of FIG.

In addition, the switch button 14 has a groove 15 formed in its upper edge, through which the main body 7 and the switch button support 12 can be inserted and reciprocated.
The inside of the shaft is sealed with an O-ring 16 to maintain watertightness.

A spring 17 pushes the switch button 14 outward.

Further, a stopper 18 is fixed to the switch button 14 to prevent the switch button 14 from coming out of the main body 7.

The water discharge on/off valve 20 has a through hole in the center and is attached to the switch button 14 with an E ring 21.

In the hand cock constructed as described above, when the switch button 14 is pushed in, the claw portion 13 of the switch button support 12 fits into the groove 15 of the switch button 14, and the switch button 14 remains pushed in.

At this time, the water discharge on/off valve 20 attached to the switch button 14 moves downward in the state shown in FIG. When water is being supplied, water is ejected from the outlet 22.

Next, when the holding piece 13a of the claw portion 13 of the switch support 12 is pressed, the claw portion 13 is removed from the groove 15 of the switch button 14, the switch button 14 is pushed back by the spring 17, and stopped at a fixed position by the stopper 18.

At this time, the water discharge on/off valve 20 attached to the switch button 14 faces the valve seat 24 and is pressed against the valve seat 24 by the water pressure of the supplied water.

Therefore, the water supply port 23 side and the water discharge port 22 side are cut off and water discharge stops.

FIG. 4 is a longitudinal sectional view of the automatic water supply valve.

The inlet 27 side of the water supply valve main body 26 is connected to the faucet 1 via a packing 28 made of rubber or the like, and the hose 3 is connected to the outlet 30 side.

A valve seat 31 is formed at the boundary between the population 27 side and the outlet 30 side, and a diaphragm 32 is provided at that portion.

The diaphragm 32 is connected to the diaphragm chamber 3 from the inlet 27 side.
A cylindrical diaphragm retainer 3 with a bottom that forms the diaphragm chamber 33 is formed with a through hole 34 communicating with the diaphragm chamber 3 and a through hole 37 communicating from the diaphragm chamber 33 to the outlet 30 side.
It is attached by 6.

The plunger 38 is connected to the pilot diaphragm 39 by a plunger nut 40, and is inserted through the bottom of the diaphragm retainer 36 through a plunger gasket 41 that maintains watertightness with the diaphragm chamber 33, so that it can freely reciprocate into the gasket retainer 42. It is pivoted.

Further, the peripheral edge of the pilot diaphragm 39 is also attached to this packing holder 42.

Reference numeral 43 denotes a main body lid, which is connected to the water supply valve main body 26 by screwing a threaded portion 45 formed on the inner edge of the iron lid 43 with a gasket 44 interposed therebetween.

Therefore, the first back pressure chamber 47, the second back pressure chamber 48, and the first atmospheric chamber 4
9. A second atmospheric chamber 50 is formed, a through hole 51 communicating from the first back pressure chamber 47 to the second back pressure chamber 48 is formed in the lid 43, and furthermore, a through hole 51 is formed in the lid 43 to communicate from the second back pressure chamber 48 to the water supply valve main body. 26 exit 3
A through hole 52 communicating with the 0 side is formed.

Further, a through hole 53 communicating from the first atmospheric chamber 49 to the second atmospheric chamber 50 is formed, and a through hole 54 communicating from the second atmospheric chamber 50 to the outside of the main body is formed in the water supply valve main body 26.

Then, the second back pressure chamber 48 is shut off from the outside air by the lid gasket 44, and the second back pressure chamber 4
8 and the second atmospheric chamber, plunger gasket 41
The diaphragm chamber 33 and the first atmospheric chamber 49 are isolated from each other.

Therefore, the first back pressure chamber 47 is connected to the through holes 51 and 52 and the second back pressure chamber 4.
8 to the outlet 30 side, and the first atmospheric chamber 49
The through hole 53 communicates with the outside air through the second atmospheric chamber 50 and the through hole 54 .

In such a structure, the operation of the automatic water supply valve 2 will be explained.

When the main tap 1a of the faucet 1 is opened, water flows from the inlet 27 side through between the diaphragm 32 and the valve seat 31 to the outlet 30.

At this time, if the water discharge on/off valve 20 of the hand cock 4 provided at the tip of the hose 3 connected to the outlet 30 is closed, pressure is applied to the outlet 30 side, and the outlet 30 side and the first back pressure chamber are closed. are in communication, the pressure in the first back pressure chamber 47 increases, and this pressure pushes the pilot diaphragm 39 toward the diaphragm 32, and the plunger 38 fixed thereto also moves toward the diaphragm 32. It comes into pressure contact with this diaphragm 32, and its tip closes the through hole 35 of the diaphragm 32.

As a result, the pressure in the diaphragm chamber 33 becomes equal to the shutoff pressure of the faucet 1 due to the through hole 34, and since this pressure is higher than the pressure on the output 30 side, a force is applied to the diaphragm 32 toward the valve seat 31, causing the diaphragm is pressed against the valve seat 31, blocking the flow paths on the inlet 27 side and the outlet 30 side, and stopping the water supply to the water discharge.

Next, when the water discharge on/off valve 20 of the hand cock 4 is opened to start water discharge, the pressure on the outlet 30 side becomes O, and the pressure in the first back pressure chamber 47 also becomes zero accordingly.

Then, the plunger 38 is pulled back toward the lid 43 by the elastic force of the pilot diaphragm 39, opening the through hole 35 of the diaphragm 32.

Therefore, the pressure in the diaphragm chamber 33 decreases, and the inlet 27
Due to the shutoff pressure of the faucet 1 applied to the side, the diaphragm 3
2 by pushing the plunger in one direction, the passages on the inlet 27 side and the outlet 30 side are opened, water flows, and water is supplied.

In this way, when the automatic water supply valve 2 opens and closes the water diversion valve 20 connected to the outlet 30 side via the hose 3, the water pressure on the outlet 30 side of the automatic water supply valve 2 changes. Automatically opens and closes depending on pressure changes.

Therefore, as shown in FIG.
Connect it to the water supply port 23 side with the hose 3.

Then, when the main valve 1a is opened and the switch button 14 of the hand cock 4 is pressed, water is ejected from the outlet 22, presses the switch button support 12, and the switch button 14 releases the spring 1.
7, the waterway is shut off by the water discharge on/off valve 20, and at the same time the pressure of the hose 3 increases, and the automatic water supply valve 2
is automatically operated to stop the water supply to the closed hand cock 4, and the water discharge from the water outlet 22 of the hand cock 4 is stopped.

By attaching a car wash brush 5 or a gardening nozzle 6 to the water outlet 22 of the hand cock 4, it can be used for different purposes.

In this way, the hand cock 4 can discharge water or stop it by pressing the switch button 14, and in accordance with this water discharge, the water supply valve 2 provided at the main valve is automatically opened and closed to supply water to the hand cock 4. It is for stopping.

Note that pressing the switch button 14 is convenient because the inflow side main body 8 of the hand cock 4 can be held in the hand and operated with the thumb.

Since the present invention can be implemented as explained above,
When using water for car washing or gardening, water can be started and stopped simply by operating the push button on the hand cock with one hand, without having to open or close the main valve. Commercially available vinyl hoses can be used instead of pressure hoses that are difficult to bend.

[Brief explanation of the drawing]

Fig. 1 is an overall schematic diagram of a hand cock unit according to an embodiment of the present invention, Fig. 2 is a longitudinal sectional view of the hand cock, Fig. 3 is an enlarged view of a button switch, and Fig. 4 is a longitudinal sectional view of an automatic water supply valve. be. 1...faucet, 2...automatic water supply valve, 3.
... Hose, 4 ... Hand cock, 14.
...Switch button, 20...Water discharge on/off valve, 22...Water outlet, 23...Water supply port, 27...Inlet, 30 ...Exit, 3
1...Valve seat, 32...Diaphragm,
34.35...Through hole, 38...Plunger, 39...Pilot diaphragm, 5
1-54...Through hole.

Claims (1)

[Scope of utility model registration request] It has an automatic water supply valve that is attached to the main faucet on the inlet side and opens and closes automatically according to changes in water pressure on the outlet side, and a water discharge on-off valve between the detachable water discharge port and the water supply port of various water discharge devices. A patented cock unit comprising a hand cock that communicates a water supply port and an outlet of the automatic water supply valve via a hose and opens and closes the automatic water supply valve to discharge water by opening and closing the water discharge on-off valve.