Vacuum breaker for hose connection
a vacuum breaker and hose connection technology, applied in water installations, thin material processing, construction, etc., can solve the problems of frozen water supply, blockage of water pipes due to water retained, and rust corrosion or elastic fatigue of springs 125 in the conventional vacuum breaker for water pipes, etc., to reduce the manufacturing cost of valves and simplify valve structures.
Inactive Publication Date: 2006-07-20
YEH MING CHENG
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Benefits of technology
[0008] A primary object of the present invention is to provide a vacuum breaker for water tube that uses a convex-topped pressure pad to elastically seal or open a plurality of air holes on the valve, so that residual water in the water tube discharge of water through the air ports, and the structure of the valve is simplified to reduce the manufacturing cost thereof.
Problems solved by technology
People living in cold and snowy places often have the problem of frozen water supply.
However, the spring 125 in the conventional vacuum breaker for water tube is subject to rust corrosion or elastic fatigue after being used over a long time.
At this point, the problem of blocked water tube due to water retained and frozen therein would occur again or contaminated water is transmitted back into the water system.
Method used
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Embodiment Construction
[0019] Please refer to FIG. 6 that is an exploded perspective view of a vacuum breaker for hose connection 1 according to the present invention. As shown, the vacuum breaker for hose connection 1 includes an upper connecting element 11 for connecting to a hose bibb 2 (see FIG. 9), and a lower connecting element 12 coupled to a lower end of the upper connecting element 11 for a water tube 3 to connect thereto, as shown in FIG. 9.
[0020] The upper connecting element 11 is provided at one side with a tightening device 111 for ensuring a firm and tight association of the upper connecting element 11 with the hose bibb 2, and internally includes a transverse partition 112 provided with a water outlet 113. An annular waterproof gasket 114 is supported on the partition 112 for tightly contacting with an end surface of a spout of the hose bibb 2.
[0021] The lower connecting element 12 internally defines an annular and radially inward extended stepped surface 121, on which a plurality of air ...
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A vacuum breaker for hose connection includes an upper and a lower connecting element for connecting to a hose bibb and a hose connection, respectively, and a pressure pad. The upper connecting element internally has a waterproof gasket supported on a transverse partition to tightly contact with an end surface of the hose bibb. The lower connecting element has an internal stepped surface with a plurality of spaced air holes for communicating an inner space of the vacuum breaker with external environment. The pressure pad has a convex top with a central hole and is rested on the stepped surface. The pressure pad is deformed by water impacted to seal the air holes on the stepped surface, and restores to the convex top to open the air holes when the hose bibb is turned off, so that water remained in the water tube can be vacuum drained.
Description
FIELD OF THE INVENTION [0001] The present invention relates to a vacuum breaker for hose connection, and more particularly to a vacuum breaker for hose connection that uses a convex-topped pressure pad to elastically seal or open a plurality of air holes on the valve, so that residual water in the water tube discharge of water through the air ports and provide protection of the potable water supply against contaminants. That enter the system through back pressure equal to 29.9 kpa(4.33 p.s.i) and back siphonage through the hose threaded outlets. BACKGROUND OF THE INVENTION [0002] People living in cold and snowy places often have the problem of frozen water supply. When a hose bibb and hydrant, faucet are turned off, a water tube, particularly one that supplies water for use outdoors, would have internal pressure smaller than atmosphere pressure, preventing residual water in the water tube from being fully drained off and contaminated water is not transmitted back into the potable wa...
Claims
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Patent Timeline
Login to View More IPC IPC(8): E03C1/10
CPCE03C1/108Y10T137/3331
Inventor YEH, MING CHENG
Owner YEH MING CHENG