A tractor assembly and an elevator. The tractor assembly includes: a traction sheave, having a traction means fitting surface and a first transmission surface on a peripheral surface thereof; a plurality of support wheels, configured to support the traction sheave, and each having a second transmission surface on a peripheral surface thereof; and support wheel bases, configured to support the support wheels through support shafts, wherein the first transmission surface of the traction sheave is in transmitting cooperation with the second transmission surfaces of the plurality of support wheels respectively. According to the tractor assembly and elevator of the present application, the support wheels are disposed to achieve the transmitting cooperation of the traction sheave during operation of the elevator and support the traction sheave, thus omitting the load and drive bearings required by a conventional traction sheave.

A tractor assembly and an elevator. The tractor assembly includes: a traction sheave, having a traction means fitting surface and a first transmission surface on a peripheral surface thereof; a plurality of support wheels, configured to support the traction sheave, and each having a second transmission surface on a peripheral surface thereof; and support wheel bases, configured to support the support wheels through support shafts, wherein the first transmission surface of the traction sheave is in transmitting cooperation with the second transmission surfaces of the plurality of support wheels respectively. According to the tractor assembly and elevator of the present application, the support wheels are disposed to achieve the transmitting cooperation of the traction sheave during operation of the elevator and support the traction sheave, thus omitting the load and drive bearings required by a conventional traction sheave.

Provided are a detection device and a control device of a lifting platform thereof, wherein the control device is used for controlling the lifting platform of the detection device, wherein the control device comprises a first distance measuring sensor arranged on the top of the detection device; a first processor connected with the first distance measuring sensor and used for obtaining a first distance measurement instruction and controlling the first distance measuring sensor to measure a first distance between the top of the detection device and an obstacle directly above the detection device according to the first distance measurement instruction; the first processor is further used for obtaining the first distance sent by the first distance measuring sensor, generating an elevation instruction according to the first distance, and controlling a lifting motor of the detection device to drive the lifting platform to rise to the target position.

Provided are a detection device and a control device of a lifting platform thereof, wherein the control device is used for controlling the lifting platform of the detection device, wherein the control device comprises a first distance measuring sensor arranged on the top of the detection device; a first processor connected with the first distance measuring sensor and used for obtaining a first distance measurement instruction and controlling the first distance measuring sensor to measure a first distance between the top of the detection device and an obstacle directly above the detection device according to the first distance measurement instruction; the first processor is further used for obtaining the first distance sent by the first distance measuring sensor, generating an elevation instruction according to the first distance, and controlling a lifting motor of the detection device to drive the lifting platform to rise to the target position.

An apparatus for holding a breast compression paddle, includes a base, a lip connected to and extending substantially orthogonal from the base, an arm connected to and extending substantially orthogonal from the base and disposed substantially parallel to the lip, and a tine connected to and extending at an angle to the arm. The lip defines a lip plane, and the tine is oriented towards the lip plane. The apparatus is configured to hold and support a compression paddle.

An apparatus for holding a breast compression paddle, includes a base, a lip connected to and extending substantially orthogonal from the base, an arm connected to and extending substantially orthogonal from the base and disposed substantially parallel to the lip, and a tine connected to and extending at an angle to the arm. The lip defines a lip plane, and the tine is oriented towards the lip plane. The apparatus is configured to hold and support a compression paddle.

Disclosed are a calibration system (600a) and a calibration support (100a) therefor. The calibration support (100a) comprises: a base (10); a vertical frame assembly (20a), comprising a fixed vertical rod (22) and a movable vertical rod (24), wherein the fixed vertical rod (22) is mounted on the base (10), and the movable vertical rod (24) is capable of moving, within a preset range relative to the base (10), in the length direction of the fixed vertical rod (22); and a cross beam (30a), which is detachably mounted to one of a first mounting seat (35a) and a second mounting seat (36a) which are connected to the movable vertical rod (24), the cross beam (30a) being used for mounting a calibration element, and the calibration element being used for calibrating an advanced driver assistant system of a vehicle. The position of the first mounting seat (35a) is higher than the position of the second mounting seat (36a); and when moving relative to the base (10) in the length direction of the fixed vertical rod (22), the movable vertical rod (24) drives the first mounting seat (35a) and the second mounting seat (36a) to move relative to the base (10) in the length direction of the fixed vertical rod (22).

Disclosed are a calibration system (600a) and a calibration support (100a) therefor. The calibration support (100a) comprises: a base (10); a vertical frame assembly (20a), comprising a fixed vertical rod (22) and a movable vertical rod (24), wherein the fixed vertical rod (22) is mounted on the base (10), and the movable vertical rod (24) is capable of moving, within a preset range relative to the base (10), in the length direction of the fixed vertical rod (22); and a cross beam (30a), which is detachably mounted to one of a first mounting seat (35a) and a second mounting seat (36a) which are connected to the movable vertical rod (24), the cross beam (30a) being used for mounting a calibration element, and the calibration element being used for calibrating an advanced driver assistant system of a vehicle. The position of the first mounting seat (35a) is higher than the position of the second mounting seat (36a); and when moving relative to the base (10) in the length direction of the fixed vertical rod (22), the movable vertical rod (24) drives the first mounting seat (35a) and the second mounting seat (36a) to move relative to the base (10) in the length direction of the fixed vertical rod (22).

A manually adjustable movable base for an outdoor umbrella includes a base assembly, a screw rod rotatably fitted at the center of the foundation base assembly, a cranking rod which is in transmission fit with the screw rod and is used for driving the screw rod to rotate, a plurality of pull rods rotatably fitted with the base assembly, and a plurality of bottom wheels which are arranged on the base assembly and are correspondingly fitted with the pull rods. The lower end of the screw rod is in threaded connection with a lifting block, and the lifting block is fitted with and connected to the pull rods.

A manually adjustable movable base for an outdoor umbrella includes a base assembly, a screw rod rotatably fitted at the center of the foundation base assembly, a cranking rod which is in transmission fit with the screw rod and is used for driving the screw rod to rotate, a plurality of pull rods rotatably fitted with the base assembly, and a plurality of bottom wheels which are arranged on the base assembly and are correspondingly fitted with the pull rods. The lower end of the screw rod is in threaded connection with a lifting block, and the lifting block is fitted with and connected to the pull rods.