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A platform for research: civil engineering, architecture and urbanism
Air check valve and slurry spraying machine using same
The invention discloses an air check valve and a slurry spraying machine using the same. The air check valve and the slurry spraying machine using the same mainly solve the problem that according to an existing slurry spraying machine, when slurry enters the slurry spraying machine from a hopper, a feed inlet is communicated with a discharge outlet, so that resistance is formed on a taper pipe at the front end of a screw cylinder due to the fact that materials are squeezed and a high-pressure feeding rubber pipe is too long, and accordingly high-pressure air flows back into the hopper to cause backward spraying of the slurry. The air check valve is characterized in that a shaft core which is driven by a power source to rotate is arranged in a valve body; material conveying plates which rotate along with the shaft core and are used for conveying materials to a discharge outlet from a feed inlet are arranged in the circumferential direction of the shaft core, the number of the material conveying plates is at least three, and the material conveying plates separate the feed inlet from the discharge outlet all the time when the material conveying plates rotate; the end of each material conveying plate is in sealing fit with the inner wall of the valve body. According to the air check valve and the slurry spraying machine using the same, the at least three material conveying plates which are arranged in the valve body and rotate along with the shaft core separate the feed inlet from the discharge outlet all the time during feeding and rotating, and thus airflow is prevented from flowing backwards; the structure is simple, and the use effect is good.
Air check valve and slurry spraying machine using same
The invention discloses an air check valve and a slurry spraying machine using the same. The air check valve and the slurry spraying machine using the same mainly solve the problem that according to an existing slurry spraying machine, when slurry enters the slurry spraying machine from a hopper, a feed inlet is communicated with a discharge outlet, so that resistance is formed on a taper pipe at the front end of a screw cylinder due to the fact that materials are squeezed and a high-pressure feeding rubber pipe is too long, and accordingly high-pressure air flows back into the hopper to cause backward spraying of the slurry. The air check valve is characterized in that a shaft core which is driven by a power source to rotate is arranged in a valve body; material conveying plates which rotate along with the shaft core and are used for conveying materials to a discharge outlet from a feed inlet are arranged in the circumferential direction of the shaft core, the number of the material conveying plates is at least three, and the material conveying plates separate the feed inlet from the discharge outlet all the time when the material conveying plates rotate; the end of each material conveying plate is in sealing fit with the inner wall of the valve body. According to the air check valve and the slurry spraying machine using the same, the at least three material conveying plates which are arranged in the valve body and rotate along with the shaft core separate the feed inlet from the discharge outlet all the time during feeding and rotating, and thus airflow is prevented from flowing backwards; the structure is simple, and the use effect is good.
Air check valve and slurry spraying machine using same
ZHAN YOUWEI (author) / ZHAN YONGZE (author)
2015-10-14
Patent
Electronic Resource
English
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