Hand-pushed power tool and handle device thereof

A handle device, comprising:

• an operation member comprising a grip for a user to hold;
• a connecting rod assembly comprising a first connecting rod connected to a tool body, wherein the first connecting rod comprises a first lower rod portion and a first upper rod portion, the first lower rod portion is connected to the tool body, the first upper rod portion is connected to the operation member and slidable relative to the first lower rod portion along a first straight line to a retracted position and an expanded position, the handle device is in a retracted state when the first upper rod portion is in the retracted position, and the handle device is in an expanded state when the first upper rod portion is in the expanded position;
• a detection device comprising a first detection element for detecting a telescopic state of the handle device;
• and
• a control device mounted to the operation member and electrically or communicatively connected to the first detection element;
• wherein the control device is configured to control a working assembly of the tool body to work according to detection information from the first detection element, the first connecting rod is connected to an end of the operation member, the handle device further comprises a second connecting rod connected to another end of the operation member and a second detection element cooperating with the first detection element, the first detection element is a Hall sensor, the second detection element is a magnetic member or a magnetically conductive element cooperating with the Hall sensor, the Hall sensor is disposed inside the first upper rod portion and connected to the control device through a first connecting wire, and the second detection element is mounted to the first lower rod portion or mounted in a housing fixedly connected to the first lower rod portion.

A mower, comprising:

• a tool body comprising a cutting assembly and a cutting motor for controlling the cutting assembly to perform a cutting function;
• and
• a handle device connected to the tool body;
• wherein the handle device comprises:
• an operation member comprising a grip for a user to hold;
• a connecting rod assembly comprising a first connecting rod connected to the tool body, wherein the first connecting rod comprises a first lower rod portion and a first upper rod portion, the first lower rod portion is connected to the tool body, the first upper rod portion is connected to the operation member and slidable relative to the first lower rod portion along a first straight line to a retracted position and an expanded position, the handle device is in a retracted state when the first upper rod portion is in the retracted position, and the handle device is in an expanded state when the first upper rod portion is in the expanded position;
• a detection device comprising a first detection element for detecting a telescopic state of the handle device;
• and
• a control device mounted to the operation member and electrically or communicatively connected to the first detection element;
• wherein the control device is configured to control the cutting motor according to detection information from the first detection element, the first detection element is a Hall sensor, the Hall sensor is disposed inside the first connecting rod and connected to the control device through a first connecting wire, a plug is provided at a lower-end hole of the first upper rod portion, and the Hall sensor is mounted to this plug.