JP3205561U - Degassing plug with taper - Google Patents

Abstract

To provide a tapered deaeration plug capable of preventing water leakage due to O-ring escape due to water pressure, water hammer action or the like. SOLUTION: Installed on the secondary side of a water meter to install a cartridge in a cylindrical casing to clean the raw water that has entered from the water inlet and supply it to the house, and inside the casing when passing water after cartridge replacement This is a deaeration plug 1 for removing air from the O-ring 2, and the O-ring 2 mounting portion is tapered and sandwiched between the lids of the main body to prevent water leakage due to the O-ring popping out due to water pressure and water hammer action. [Selection] Figure 2

Description

The present invention relates to a plug provided with a taper in a plug itself for deaeration at a product top plate portion.

After deaeration by installation and cartridge replacement, the plug was closed, and the O-ring attached to the deaeration plug was in close contact with the top plate (dish fir unit) to stop water.

After the deaeration plug is closed, the contact area between the O-ring attached to the deaeration plug and the top plate deaeration port (dish fir unit) becomes uneven, so part of the O-ring that is weak due to water pressure and water hammer action Escaped and caused a water leak. It is intended to solve the water leakage caused by the prevention of O-ring escape.

In the present invention, a taper is provided on the deaeration plug itself, and when the plug is closed, the O-ring between the deaeration port (dish fir part) and the taper part of the plug is evenly pressed, so that the O-ring does not escape. The problem will be solved by preventing water leakage.

As described above, the tapered deaeration plug according to the present invention improves the adhesion accuracy of the deaeration port (dish fir section), plug, and O-ring and reduces the clearance, eliminating the O-ring escape and preventing water leakage. It becomes.

It is sectional drawing of this invention and a deaeration plug. It is the attachment state front view of this deaeration plug.

An O-ring is attached to the neck of the tapered degassing plug, and after the degassing in the product is completed, the plug is closed in the degassing port.
By tightening, the O-ring attached to the degassing plug is pressed evenly up and down, and the tightness of the degassing plug and the degassing port (dish fir) is improved, and the clearance accuracy is eliminated. It becomes.

Hereinafter, an embodiment will be described with reference to the accompanying drawings. 1 is a deaeration plug body processed into a taper. 2 is an O-ring. 3 is a top plate vent. By closing the 1 taper deaeration plug, all the contact accuracy of the 2 O-ring with the 1 taper deaeration plug and 3 top plate deaeration ports increases. Also, since the top plate deaeration port 3 is dish-fir processed, the O-ring escape does not occur on the taper plug side 1 and the top plate deaeration port 3. Even in normal tightening, the above-described effects are obtained, and the O-ring escape can be prevented. That is, it is possible to prevent the O-ring from escaping even in the mode of water pressure and water hammer action.

In the operation of the water stop screw, it is possible to prevent O-ring escape and leakage due to pressure at the site where water pressure and water hammer action work.

1 Degassing plug with taper 2 O-ring 3 Product top plate 4 Flange packing 5 with rib

Claims (1)

By installing a taper on the plug (deaeration plug) itself (bottom of the head), which is a mechanism that vents the internal air after installation of the company's product [Central type water purification system “Hikari” CR-500MS] and cartridge replacement, In addition, the plug has a feature that can prevent the O-ring from escaping due to a water hammer effect.

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