Nanjing Chervon Industry

Provided is a power tool. The power tool includes a housing, an electric motor, a battery pack, an eccentric rotation assembly, a working head, and a circuit board. The housing includes a motor housing extending along a first direction a, a grip extending along a second direction b, and an extension portion, where the extension portion is disposed at one end of the grip facing away from the motor housing, and an included angle m between the first direction a and the second direction b is greater than or equal to 80° and less than or equal to 150°. The electric motor is disposed inside the motor housing and includes a stator, a rotor, and a motor shaft. The battery pack is detachably mounted on the extension portion to provide electrical energy for driving the electric motor to rotate. The power tool is provided with the extension portion at one end of the housing facing away from the grip, and the battery pack is detachably mounted on the extension portion so that the battery pack is disposed detachably and externally.

A battery pack includes: a housing; multiple cells disposed in the housing; and a coupling portion configured to be coupled to an electrical device to transmit electrical energy. The coupling portion includes: a terminal assembly configured to be electrically coupled to the electrical device; and a support portion supporting at least the connection between the electrical device and the battery pack, where the support portion includes a support cavity and a reinforcing member accommodated in the support cavity, and the reinforcing member is an independent prefabricated member and is made of the same material as the housing.

A walk-behind working machine includes a traveling assembly, a working assembly, and a parking module. The traveling assembly includes a traveling wheel set and a traveling motor for driving the traveling wheel set. The traveling wheel set includes axles and wheels disposed on the axles. The working assembly includes a working attachment and a working motor for driving the working attachment. The parking module is configured to apply a braking force to the axle.

An electric power tool includes: a housing; a motor that rotates about a first axis to generate a driving force; an output shaft connected to a working attachment, where the output shaft is drivable by the motor to drive the working attachment to rotate; a shaft locking mechanism operable to lock the output shaft when the motor is stopped; and a switch assembly operable to start the motor, where when the switch assembly is operated to start the motor, an operation acting on the switch assembly can release locking of the shaft locking mechanism to the output shaft.

A walk-behind power tool includes: a body supported by a traveling assembly; a handle device, where the handle device is connected to the body and includes gripping handles for a user to hold, and at least part of the gripping handles are configured to be movable relative to the body; a sensing device configured to sense the amount of movement of the at least part of the gripping handles; and a control device connected to the sensing device. The control device is configured to control, according to the amount of movement, the walk-behind power tool to steer. The provided walk-behind power tool can be freely controlled to turn, which is flexible to operate and is safe, convenient, and comfortable to use.

A handheld cutting tool includes a housing (140); a motor (150) supported by the housing (140); a saw chain (160) driven by the motor (150) to implement a cutting function; a guide plate (170) for supporting and guiding the saw chain (160); and an oil tank (100c, 180) supported by the housing (140) and configured to store a lubricant to lubricate the saw chain (160) or the guide plate (170), where the oil tank (100c, 180) includes a tank body (181) formed with an oil injection port (182) and a cap (183) for sealing the oil injection port (182); and the tank body (181) is formed with a protrusion portion (184) capable of shielding at least part of the cap (183). According to the above technical solutions, the handheld cutting tool where the cap (183) and the oil injection port (182) mate with relatively good stability can be provided.

Provided is a cutting tool. The cutting tool includes a bevel adjustment mechanism (140). The bevel adjustment mechanism (140) further includes an operating member (1411) connected to or formed with a limiting member (1413). Driven by the operating member (1411), the limiting member (1413) has at least a first state, a second state, and a third state. A bracket plate (142) includes a stop portion (1421) capable of being adapted to the limiting member (1413) in the first state or the second state to limit a first limit angle and a second limit angle of the sawing assembly (120) relative to the base (110). When the limiting member (1413) is in the third state, the bevel adjustment mechanism (140) limits the maximum lateral bevel angle of the sawing assembly (120) relative to the base (110) to a third limit angle. The first limit angle is less than the second limit angle.

A fastener driver includes a striking assembly including a striking member configured to strike a fastener; a drive assembly configured to drive the striking member; and an electric motor providing a driving force for at least the drive assembly. The drive assembly includes a drive wheel configured to engage with the striking member to drive the striking member to move along the extension direction of the striking member. The distance D from the centroid of the drive wheel to the rotation axis of the drive wheel is less than or equal to 1.5 mm. In this manner, the regular wobbles of the fastener driver can be reduced, thereby improving the user's operating feel.

An inflator includes a motor, a power mechanism, at least one air vent, and a main housing. The power mechanism is driven by the motor and configured to generate airflow. The air vent is connected to a flexible duct for air intake and/or air discharge to allow the airflow to flow. The main housing accommodates the motor and the power mechanism and has a battery coupling portion, where a battery pack that provides a power supply for the motor is capable of being detached from or mounted to the battery coupling portion. The main housing further has a first coupling portion configured to detachably connect an illumination device. The illumination device is capable of illuminating a working region of the inflator.

A clamping device includes a shaft body including an axial opening and at least one hole, where the axial opening extends along a first straight line; at least one retainer, where each of the at least one retainer is configured to move within a respective hole of the at least one hole; a sleeve sleeved on the outer circumference of the shaft body and configured to move axially relative to the shaft body; an abutting member abutting against the rear side of the at least one retainer; a first elastic member located on the front side of the at least one retainer; and a second elastic member located on the rear side of the at least one retainer and being in contact with the abutting member. The sleeve includes a protrusion extending along a second straight line, and the protrusion abuts against the shaft body, where the second straight line intersects with the first straight line. Along the direction of the first straight line, the protrusion is located at the front end of the at least one retainer and is not in contact with the at least one retainer.