Magnetic valve with emptying function

[0018] The drawings show a specific embodiment of the invention. This embodiment includes a valve chamber 3 with an inlet 1 and an outlet 2 provided at both ends. The valve chamber 3 is provided with an air inlet 4 on the same side as the outlet 2, and the air inlet 4 and the outlet 2 are not on the same plane. 3 is provided with a free-swimming movable column 5, both ends of the movable column 5 are provided with powerful magnets 6, the outside of the powerful magnet 6 is wrapped with a silicone gasket 7; the valve chamber 3 is wrapped with a plastic link body 8. The two ends of the plastic link body 8 are provided with magnetic controls 9, and the magnetic control 9 passes through the inlet 1 or the outlet 2 in the middle; the valve chamber 3 is a closed plastic cylinder, the plastic cylinder is divided into upper and lower halves, and the middle is arranged Connect the thread; the strong magnets 6 at both ends of the movable column 5 are opposite to the magnetic poles of the corresponding end of the magnetic control 9; the main body of the movable column 5 is made of plastic; the inlet 1 and the outlet 2 are standard parts.

[0019] When the magnetic control 9 arranged outside the valve chamber 3 moves up and down, due to the penetration of the magnetic field, the movable column 5 is moved by the magnetic force in the valve chamber 3; when the magnetic control 9 moves upward, the plastic link body 8 The magnetic control 9 at the lower end attracts the movable column 5 in the valve chamber 3, so that the movable column 5 moves downward, and the silicone gasket 7 wrapped around the strong magnet 6 closes the air inlet 4, at this time, the inlet 1 and the outlet 2 are open for circulation, and the valve is opened. When the magnetic control 9 moves down, the magnetic control 9 on the upper end of the plastic link body 8 attracts the movable column 5 in the valve chamber 3, causing the movable column 5 to move upwards, and the silicone gasket 7 wrapped around the powerful magnet 6 closes the entrance 1. At this time, the air inlet 4 is opened, the air in the valve chamber 3 enters, and the liquid is drained from the valve chamber 3 through the outlet 2.

[0020] The valve of the present invention should be vertical to the ground and connected to the pipeline when it is used to drain liquid in the pipeline; when the valve is used in the water pipe and the downpipe of the solar water heater, the movement of the external magnetic control 9 can be operated by a pull wire. In the northern winter, the valve can be wrapped with a special foam anti-freezing skin.