48results about How to "Prevent running water" patented technology

A water running preventing faucet comprises a faucet body and a water running preventing mechanism. The faucet body comprises a valve, a valve element, a rotary switch, an upper end cover and a bottom cover. The water running preventing mechanism comprises a piston assembly and a shifting fork assembly. The piston assembly comprises a piston and a first spring. A water inlet hole sealing cap is arranged at the lower end of the piston. A piston chamber is formed in the lower end of the valve element. The first spring and the piston are arranged in the piston chamber. One end of the first spring abuts against the valve element, and the other end of the first spring abuts against the piston. The shifting fork assembly comprises three shifting forks, a second spring and a spring pin. The three shifting forks are fixed to the outer wall of the lower end of the valve element at equal intervals in the circumferential direction, and the three shifting forks and the valve element are of an integrated structure. A spring chamber is formed in the inner wall of the valve, and the second spring is arranged in the spring chamber. One end of the spring pin is inserted in the spring chamber, the other end of the spring pin abuts against the valve element, and a push rod is obliquely arranged on the spring pin. According to the water running preventing faucet, a water inlet of the faucet can be automatically sealed, water running is prevented, the structure is novel, and using is convenient.

Disclosed are a collapsible canopy frame for easy building and storage while collapsed to minimize the volume thereof, and a canopy using same. The collapsible canopy frame has symmetric connecting frames and asymmetric connecting frames both of which are connected to and between four posts, each of the symmetric connecting frames and asymmetric connecting frames having two rods linked in an X-shape. The symmetric connecting frames have crossing connecting points and connecting points at ends of the rods in the same length, thereby forming a horizontal part, and the asymmetric connecting frames have crossing connecting points and connecting points at ends of the rods in different lengths, thereby forming a sloping part. The present invention is convenient to use when a tent is coupled to the collapsible canopy frame, since the horizontal part and the sloping part form a sloping surface on the tent, thereby allowing rainwater to drain in a certain direction in case of rain. Also, the present invention is convenient to use, since the same collapsing method is used for all connecting frames connected to the posts, and thus merely folding and unfolding motions enable the storage and building of the present invention.

The invention relates to a pressure protection valve and a gas water heater, comprising a valve body and a valve core assembly, characterized in that the valve body is also provided with a bypass pipe communicating with the valve chamber; the second valve core assembly is arranged in the valve chamber for controlling On and off of the water inlet, the second spool assembly is in a normally open state; the first spool assembly is set in the side pipe to control the action of the second spool assembly; it includes the first base and the first valve set in the side pipe rod, the first valve plug, the first magnetic part and the second magnetic part; the first valve plug can be slidably sealed and connected to the inner wall of the side pipe; the first valve plug is drivingly connected to the first valve stem, and the first valve stem can be slidably Located on the first base, the first valve stem drives the second valve core assembly to move; the first base and the first valve plug are respectively provided with a first accommodation groove and a second accommodation groove; the first magnetic part is accommodated in In the first accommodating groove; the second magnetic part is accommodated in the second accommodating groove; the first magnetic part and the second magnetic part are oppositely arranged and opposite to each other with the same poles.