JPS5817823Y2 - Cylinder that can be used for various purposes - Google Patents

Description

[Detailed description of the invention] The present invention includes a piston with a nozzle fixed to the front end surface, which has a cleaning water jet hole at the tip and a water pressure control valve at the rear end, inside the cleaning cylinder. The present invention relates to an improvement in a cleaning cylinder of an automatic toilet bowl cleaning device, which is inserted so as to be reciprocally movable together with a nozzle.

In conventional cylinders of this type, a drain hole was provided in the water pressure control valve to drain the cleaning water remaining in the cleaning cylinder, so when the nozzle was moved at the beginning and immediately after cleaning However, the cleaning water passes through the drain hole and is unnecessarily ejected from the spouting hole, which wets the clothes of the user and causes discomfort.

In order to eliminate these drawbacks, the present invention provides a water drain hole in the piston that communicates with the outside of the cylinder from its water supply side, and will be described in detail below with reference to the drawings.

Reference numeral 1 denotes a washing water tank, and a washing cylinder 2 is fixed to its inner wall.

Reference numeral 3 denotes a piston inserted into the cylinder 2 so as to be reciprocally movable, and the front end of the piston has a jetting hole 4a for cleaning water at its tip and a water pressure regulating valve 5 at its rear end. The rear part of the nozzle 4 is fixed.

Reference numeral 6 denotes a return spring stretched between the front end surface of the piston 3 and a stopper 8 having a hole 8a fixed by a retaining ring 7 fixed to the front of the cylinder.

Reference numeral 9 denotes a step portion formed by the nozzle 4 for positioning the nozzle.

15 is a stopper for piston 3.

Reference numeral 10 denotes a water passage passing through the center of the piston 3, and at its front end, a valve seat 10a is formed around the control valve 5 via a constant pressing spring 11.

12 is the water supply side 14 of the piston 3, that is, the cleaning water tank 1
For example, from the side facing the water inlet 13 from the toilet bowl (
This is a drain hole formed in the piston to communicate with the outside of the cylinder (not shown).

In the above configuration, when cleaning water is sent into the cylinder 2 from the water supply port 13 during cleaning, the water pressure presses the rear end surface of the piston 3 and the return spring 6 is pressed until the step 9 of the nozzle 4 comes into contact with the stopper 8. move forward against the

At the start of this cleaning, the cleaning water also leaks from the drain hole 12 and flows into the toilet bowl through the gap S.

Furthermore, when water is supplied, the water pressure increases, and the water that enters from the water passage 10 of the piston 3 opens the water pressure control valve 5.
The liquid passes through the nozzle 4 and is ejected from the ejection hole 4a toward the private part for cleaning.

When the water supply is stopped after cleaning and the water pressure on the piston 3 disappears, the piston 3 is pushed back by the restoring force of the return spring 6 until it comes into contact with the stopper 15, but the piston 3 remains in the moving part of the cylinder 2. Water flows out from the drain hole 12 of the piston 3 through the gap S into the toilet pot outside the cylinder.

As is clear from the above explanation, the cleaning cylinder of the present invention has a water drain hole in the piston that leads to the outside of the cylinder, so it is similar to the conventional product mentioned at the beginning (in which the water pressure control valve has a water drain hole). Since there is no unnecessary ejection from the nozzle nozzle at the beginning and immediately after the end of cleaning, there is no need to wet the user's clothes and cause discomfort.
Its practical effects are great.

[Brief explanation of drawings]

The figure is a longitudinal sectional view of the cleaning cylinder according to the present invention. 2: Cleaning cylinder, 4: Nozzle, 4a: Spout hole, 5
: Water pressure control valve, 3: Screw, 12: Drain hole.

Claims (1)

[Scope of utility model registration request] Inside the cleaning cylinder, a nozzle with a cleaning water jet hole at the tip and a water pressure adjustment valve at the rear end was inserted into the cleaning cylinder so that it could reciprocate with the nozzle. In the automatic private toilet flushing device, the piston is provided with a drain hole that bypasses the water pressure control valve from the water supply side and communicates with the outside of the cylinder through a gap between the cylinder and the nozzle. Features: Cleaning cylinder of automatic toilet bowl cleaning device