Abstract: The present invention provides a tiering device for a freight compartment, which pertains to the technical field of logistic and transportation equipment. It solves the problem in the prior art that existing tiering devices for a freight compartment occupy a relatively large space inside the freight compartment. The tiering device for a freight compartment according to the present invention comprises: a sidewall of the freight compartment, a transmission part, and a vertical guide track; the transmission part lift/lower support members, the support members forms placement area for goods. Half of the transmission part is buried inside a belt guide channel on the vertical guide track, the other half is located inside the vertical guide track or is flush with the groove opening of the vertical guide track. The present invention occupies less space inside the freight compartment, thus facilitating loading/unloading goods to/from the freight compartment.

Abstract: The ratchet chain binder comprises a seat, a rotating shaft, a ratchet, a handle capable of driving the ratchet to rotate, and two screw tightening components rotatably connected to the seat in a coaxial manner. Two drive bevel gears are disposed respectively on opposing ends of the two screw tightening components. The rotating shaft is provided with a transmission gear and a transmission bevel gear simultaneously engaging the two drive bevel gears, the rotating shaft is capable of driving the two screw tightening components to rotate and changing an overall length of the two screw tightening components. The transmission gear is disposed between the two screw tightening components, an intermediate gear is rotationally connected to the seat, and the ratchet is located above the intermediate gear and engages with the intermediate gear.

Abstract: The ratchet chain binder comprises a seat, a rotating shaft, a ratchet, a handle capable of driving the ratchet to rotate, and two screw tightening components rotatably connected to the seat in a coaxial manner. Two drive bevel gears are disposed respectively on opposing ends of the two screw tightening components. The rotating shaft is provided with a transmission gear and a transmission bevel gear simultaneously engaging the two drive bevel gears, the rotating shaft is capable of driving the two screw tightening components to rotate and changing an overall length of the two screw tightening components. The transmission gear is disposed between the two screw tightening components, an intermediate gear is rotationally connected to the seat, and the ratchet is located above the intermediate gear and engages with the intermediate gear.

Abstract: Various embodiments of the present disclosure provide a winch having a user-adjustable or variable initial mechanical advantage. In one embodiment, the winch of the present disclosure has an outer drum diameter adjustable between a minimum outer drum diameter, which is associated with a maximum initial mechanical advantage provided by the winch, and a maximum outer drum diameter, which is associated with a minimum initial mechanical advantage provided by the winch. This provides a user with the flexibility to adjust or vary the mechanical advantage of the winch to the user's preference.

Abstract: A cargo support device comprises an inner tube and an outer tube enclosing the inner tube. The inner tube can partially stretch out from the outer tube. A handle is hinged on the outer tube. There is a strip-shaped groove designed on the inner tube in the axial direction. A long toothed rack is embedded into the groove. There is a ratchet at the end of the handle, which meshes with the teeth on long toothed rack. The cargo support device can also comprise a locator which can lock the handle when the ratchet meshes with the teeth. The teeth on the cargo support device are not directly punched on the inner tube, but set on a separate long toothed rack embedded in the groove of the inner groove. This will properly increase the depth of the teeth.

Abstract: A cargo support device comprises an inner tube and an outer tube enclosing the inner tube. The inner tube can partially stretch out from the outer tube. A handle is hinged on the outer tube. There is a strip-shaped groove designed on the inner tube in the axial direction. A long toothed rack is embedded into the groove. There is a ratchet at the end of the handle, which meshes with the teeth on long toothed rack. The cargo support device can also comprise a locator which can lock the handle when the ratchet meshes with the teeth. The teeth on the cargo support device are not directly punched on the inner tube, but set on a separate long toothed rack embedded in the groove of the inner groove. This will properly increase the depth of the teeth.

Abstract: A drive device for a belt axis of a winch, to address the problems existing in the conventional drive device for the belt axis of the winch including a short service life and a high cost. The drive device is disposed at the end of the belt axis of the winch. The drive device comprises a stationary seat and a rotary cylinder. The rotary cylinder is provided with a socket for inserting a crowbar. The stationary seat is fixedly connected with the belt axis. The rotary cylinder is axially fixed to the stationary seat. A unidirectional mechanism is provided between the rotary cylinder and the belt axis and operates by means of the engagement of teeth of the ratchet wheel. The belt axis is brought into continuous one-way rotation by using the unidirectional mechanism while the rotary cylinder is turned back and forth.

Abstract: Various embodiments of the present disclosure provide a winch having a user-adjustable or variable initial mechanical advantage. In one embodiment, the winch of the present disclosure has an outer drum diameter adjustable between a minimum outer drum diameter, which is associated with a maximum initial mechanical advantage provided by the winch, and a maximum outer drum diameter, which is associated with a minimum initial mechanical advantage provided by the winch. This provides a user with the flexibility to adjust or vary the mechanical advantage of the winch to the user's preference.

Abstract: The present invention provides a drive device for a belt axis of a winch, to address the problems existing in the conventional drive device for the belt axis of the winch including a short service life and a high cost. The drive device is disposed at the end of the belt axis of the winch. The drive device comprises a stationary seat and a rotary cylinder. The rotary cylinder is provided with a socket for inserting a crowbar. The stationary seat is fixedly connected with the belt axis. The rotary cylinder is axially fixed to the stationary seat. A unidirectional mechanism is provided between the rotary cylinder and the belt axis and operates by means of the engagement of teeth of the ratchet wheel. The belt axis could be brought into continuous one-way rotation by using the unidirectional mechanism while the rotary cylinder is turned back and forth.