CN201412565Y - Dead weight two-way check valve - Google Patents

Abstract

A dead weight two-way check valve comprises a valve body. The valve body comprises an upper part and a lower part which are butted through a thread port; a cylinder-shaped counterbalance is mounted inthe valve body in the gap formed at the periphery of the center of the valve body; a pressure water return port corresponding to the water outlet at the top of the valve body is formed on the roof ofthe counterbalance; a cylinder-shaped wrapper is mounted in the counterbalance below the return port; the distance between the wrapper and the sealing rubber mat is 1 to 2mm; a turning surface at thebottom of the wrapper is fixedly connected with the bottom surface of the counterbalance; a water inlet pipe is concentrically fixed on and penetrates through the bottom wall of the valve body; an upper sealing rubber mat is mounted in the gap between the upper end of the water inlet pipe and the wrapper and a lower sealing rubber mat is fixed on the interior bottom surface of the valve body; anda pressure water passage is arranged between the bottom surface of the wrapper and the lower sealing rubber mat. When the check valve is used, the water inlet pipe and the water outlet pipe are connected with a tap water pipe and a pressure water tank respectively, and the check valve can automatically quantify and supply water, and the valve is particularly suitable for flushing the urinal.

Description

The dead-weight dual way check valve

Technical field:

The utility model relates to valve, the dead-weight dual way check valve of particularly a kind of pressure water pot special use.

Background technique:

Existing safety check all is unidirectional non-return, and is that depended on pressure comes autocontrol valve to carry out non-return.Its using scope is subjected to certain limitation.Can not be applicable to the pressure water pot.

Summary of the invention:

The purpose of this utility model provides a kind of being applicable on the pressure water pot and installs and uses, and has the dead-weight dual way check valve of dual check function.

Technical solution of the present utility model is finished as follows, it includes a valve body, it is characterized in that: valve body mouthful is docked with silk by two-part up and down and forms, in valve body, reserve the gap up and down around the concentric and be set with a cylindrical shape counterweight, the counterweight roof is provided with a corresponding pressure return water mouth of the water outlet with the valve body top, a cylindrical enclosure is installed in the counterweight below answering back, big envelope and the spacing of sealing between the rubber cushion are the 1-2 millimeter, the big envelope bottom has turn-over to fixedly connected with the counterweight bottom surface, concentric connects on the valve body diapire downwards and is fixed with an intake pipe in big envelope, reserving spacing between intake pipe upper end and the big envelope is equipped with and seals rubber cushion, on the valve body inner bottom surface, be fixed with the lower sealing rubber cushion, between big envelope bottom surface and lower sealing rubber cushion, be provided with pressure and cross water channel.

When the utility model uses, as long as intake pipe is connected with the pressure water pot with running water pipe respectively with outlet pipe, can be with its automatically quantitative and water supply, simple in structure, automaticity is high, using water wisely, is particularly suitable for washing sitting toilet.

Description of drawings:

Accompanying drawing is a structural representation of the present utility model.

Embodiment:

Valve body 6 of the present utility model is to be connected into a cylindrical shape by two-part up and down with 7 pairs of screw threads, in valve body, reserve the gap up and down around the concentric and be set with a cylindrical shape counterweight 3, the counterweight roof is provided with one and valve body top water outlet 1 corresponding pressure return water water intake 2, a cylindrical enclosure 5 is installed in the counterweight below the backwater water intake, the gap that big envelope seals between the rubber cushion is the 1-2 millimeter, big envelope bottom outwards folding has flange 8 to fixedly connected with the counterweight bottom surface, in big envelope, connect on the downward valve body diapire of concentric and be fixed with an intake pipe 10, reserving spacing between intake pipe upper end and the big envelope is equipped with and seals rubber cushion 4 on the pair, on the valve body inner bottom surface, be fixed with lower sealing rubber cushion 9, between big envelope bottom surface and lower sealing rubber cushion, be provided with pressure and cross water channel 11.

Claims (1)

1, the dead-weight dual way check valve, it includes a valve body, it is characterized in that: valve body mouthful is docked with silk by two-part up and down and forms, in valve body, reserve the gap up and down around the concentric and be set with a cylindrical shape counterweight, the counterweight roof is provided with a corresponding pressure return water mouth of the water outlet with the valve body top, a cylindrical enclosure is installed in the counterweight below answering back, big envelope and the spacing of sealing between the rubber cushion are the 1-2 millimeter, the big envelope bottom has turn-over to fixedly connected with the counterweight bottom surface, concentric connects on the valve body diapire downwards and is fixed with an intake pipe in big envelope, reserving spacing between intake pipe upper end and the big envelope is equipped with and seals rubber cushion, on the valve body inner bottom surface, be fixed with the lower sealing rubber cushion, between big envelope bottom surface and lower sealing rubber cushion, be provided with pressure and cross water channel.

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