A lightweight winch has the motor assembly centered with a housing within the winch drum where it may be easily accessed and removed from the winch drum. The winch comprises an improved, non-load bearing level wind mechanism for evenly winding cable about the winch drum. And a small-footprint level wind system having elongate support, a leadscrew, a guide substantially supported by the support, the guide adapted to accept a tension member. The guide designed to move along the support and to transfer tension member forces onto the support. Further comprising a motor, adapted to apply a motive onto the leadscrew, a shuttle connected the guide and leadscrew and adapted to transfer the motive force to the guide, moving the guide along the support. Also provides direct tension member metering and load sensing within the guide, and a load-bearing leadscrew having a direct connection between guide and leadscrew.

Tensioning elements are introduced into a tower to a respective intended final position, in which each tensioning element to be pulled in is introduced into an interior space of the tower, connected to a pulling rope of a winch, and pulled into the tower in a direction from a bottom of the tower to a top of the tower by the winch. The method includes placing on an upper end of the tower, for example on an adapter piece and/or an anchoring ring, a mounting device with a boom rotatably mounted on a base frame; aligning the boom with respect to a mounting position of a given one of the tensioning elements; and pulling in and anchoring the given tensioning element to the upper end of the tower, wherein the pulling rope of the winch is guided above the mounting device. Related mounting, coiling, and adapter devices are also disclosed.

Tensioning elements are introduced into a tower to a respective intended final position, in which each tensioning element to be pulled in is introduced into an interior space of the tower, connected to a pulling rope of a winch, and pulled into the tower in a direction from a bottom of the tower to a top of the tower by the winch. The method includes placing on an upper end of the tower, for example on an adapter piece and/or an anchoring ring, a mounting device with a boom rotatably mounted on a base frame; aligning the boom with respect to a mounting position of a given one of the tensioning elements; and pulling in and anchoring the given tensioning element to the upper end of the tower, wherein the pulling rope of the winch is guided above the mounting device. Related mounting, coiling, and adapter devices are also disclosed.

A lifting cabinet has left and right lifting mechanisms each comprising a steel cable; a power mechanism which is connected with a first end of the steel cable; an internal guide rail which is connected with a second end of the steel cable; and an external guide rail which is fixed on a frame of the lifting cabinet and is configured with an accommodation space therein. The internal guide rail is located within the accommodation space. The lifting cabinet solves the problem of exposure of the steel cable.

A lifting cabinet includes a transmission assembly and a power unit for raising and lowering a shelf. The transmission assembly comprises a first transmission unit, comprising a screw rod which is connected with a driving device and a sliding piece which is connected with the lifting shelf, and the sliding piece is coupled to the screw rod. The screw rod rotates under the action of the driving device and drives the sliding piece to move back and forth along the axis of the screw rod; and then the sliding piece drives the lifting shelf to move up and down. For the lifting cabinet and the power unit thereof, the transmission assembly converts a rotary motion outputted from the driving device into a linear motion through the cooperation between the screw rod and the sliding piece, and a greater axial force is thereby outputted. Thus, a relatively small motor with a lower output torque can be used in the lifting cabinet to drive a lifting shelf of the same weight when compared to the conventional lifting cabinet, and the problem of large motor in conventional lifting cabinet taking up too much space is thereby solved.

A cable steering system directs steel cables, for lifting cabinet shelf. The cable steering system includes left and right devices each comprising a first transmission wheel for horizontally turning the cable, and a second transmission wheel for vertically turning the cable which extends out from the first transmission wheel; and the cable extending out from the second transmission wheel is located in the middle of a side edge of the cabinet body. With the steel cable steering devices of the lifting cabinet, each steel cable extends horizontally along the first transmission wheel, and then is directed vertically downwardly by the second transmission wheel, thereby the cable is connected to a middle part of a side edge of the lifting shelf, so that the lifting shelf bears a balanced force.

A lifting cabinet, comprises a cabinet body, wherein the cabinet body comprises a side plate in which at least two wire through-holes are configured, a trunking which is configured in the side plate for communicating with the two wire through-holes, and wires which are placed in the trunking and are respectively connected to electric parts in different spaces within the cabinet body through the two wire through-holes. The cabinet solves the problem of messy and unsightly appearance caused by unreasonable wire arrangement.

An adjustable length winch apparatus is disclosed. The adjustable length winch apparatus comprises a first motor, a first drum, a second drum, and a shaft. The first motor is configured to rotate the first drum and the shaft on an axis. The second drum is adapted to be rotated by the shaft on the axis. The shaft and the second drum are configured to adjust the distance between the first and second drum.

An adjustable length winch apparatus is disclosed. The adjustable length winch apparatus comprises a first motor, a first drum, a second drum, and a shaft. The first motor is configured to rotate the first drum and the shaft on an axis. The second drum is adapted to be rotated by the shaft on the axis. The shaft and the second drum are configured to adjust the distance between the first and second drum.

A management system for a closed environmental facility includes one or more motorized tubular hoist mechanisms operable to adjust the height of environmental modules above one or more groups of plants. A central controller provides signals over a wireless communication network to command the hoist mechanisms to move the environmental modules to a desired position. In further embodiments, environmental sensors provide data to the central controller and the controller automatically calculates desired positions of the environmental modules based on the data and commands the hoist mechanisms to achieve the desired positioning.