Ball valve

A ball valve, comprising a drive mechanism, a transmission mechanism, a valve body assembly and a valve core component, wherein the transmission mechanism is configured to drive the valve core component to act through the drive mechanism;

• wherein the valve body assembly comprises a first valve body component and a second valve body component, the first valve body component is fixedly connected to the second valve body component, the valve body assembly is formed with a containing cavity, the containing cavity comprises a first valve body component cavity and a second valve body component cavity, the first valve body component cavity is located within the first valve body component, the second valve body component cavity is located within the second valve body component, the valve core component is at least partially accommodated within the first valve body component cavity, and the transmission mechanism is at least partially located in the second valve body component cavity;
• the transmission mechanism comprises a first gear ring, and at least part of the valve core component is fixedly connected to or in position-limiting fit with the first gear ring;
• and
• the valve core component comprises a platform part and a plane part, the platform part is located at or adjacent to a rotating center of the valve core component, one side of the first gear ring facing toward the valve core component abuts against the platform part, and the one side of the first gear ring facing toward the valve core component keeps a preset distance from the plane part.