A housing for a self-retracting lifeline includes an outer area disposed on a portion of a first side of the housing, the outer area being planar, a label area stepped down from the outer area, an outer perimeter of the label area corresponding to an inner perimeter of the outer area, and a number of protruding members disposed at least on a portion of the first side of the housing and being stepped up from the outer area.

A cable length measurement device, configured to: be connected a winding wheel and measure an extension or retraction length of a cable on the winding wheel, which includes a fixed shell, a rotating shell and a control panel. The rotating shell is rotatably connected to the fixed shell. The rotating shell is configured to be connected to the winding wheel and rotate around a rotation axis with the winding wheel. One of the fixed shell and the rotating shell is provided with a signal transmitter. The other one of the fixed shell and the rotating shell is connected to the control panel. The control panel is provided with a signal receiver. When the signal transmitter passes through the signal receiver, the signal receiver generates a counting signal, and the control panel receives the counting signal to calculate the extension or retraction length of the cable on the winding wheel.

A cable length measurement device, configured to: be connected a winding wheel and measure an extension or retraction length of a cable on the winding wheel, which includes a fixed shell, a rotating shell and a control panel. The rotating shell is rotatably connected to the fixed shell. The rotating shell is configured to be connected to the winding wheel and rotate around a rotation axis with the winding wheel. One of the fixed shell and the rotating shell is provided with a signal transmitter. The other one of the fixed shell and the rotating shell is connected to the control panel. The control panel is provided with a signal receiver. When the signal transmitter passes through the signal receiver, the signal receiver generates a counting signal, and the control panel receives the counting signal to calculate the extension or retraction length of the cable on the winding wheel.

A drain auger includes a drum, a motor, and a cable. The drum forms an accommodation space. The motor drives the drum to rotate. The cable is at least partially stored in the accommodation space. The total length of the extended cable has a cable length L, the drum has an inner bottom surface forming the accommodation space, the diameter of the inner bottom surface is the first diameter D, and, when the cable length L and the first diameter D are both measured in centimeters, the ratio L/D.sup.2 of the cable length L to the square of the first diameter D is greater than or equal to 3.5.

An oxygen tubing retraction and storage apparatus that provides for retraction of tubing that is between a patient and, for example, an oxygen machine. The retraction apparatus having a frame member, a drum assembly, a tube drum guide assembly and a motor assembly. The drum assembly rotates relative to the frame member, with the tube drum guide assembly cooperatively guiding tubing into and out of a channel on the drum assembly.

A hose box assembly comprises a housing, a hose reel, and a cover. The cover is rotatable between an operational position and a storage position. In the storage position, the cover inhibits an access to an inside of the housing. In the operational position, the inside of the housing is accessible. The hose box assembly is characterized by a frame is movably mounted to the housing such that a hose guidance device is movable relative to the housing during a movement of the cover between the operational position and the storage position. The frame is coupled to the cover such that when the cover is in the operational position, a hose guide is positioned above an upper edge of the housing such that the hose guide is accessible. In the storage position and in the operational position, the hose reel is positioned in the inside of the housing.

A hose reel assembly includes a frame and a reel rotatably coupled to the frame. The reel can include a drum and four flanges arranged to define three spools, where each spool can be configured to hold a portion of a hose. The third and fourth flanges can include one or more apertures that can allow a portion of a hose to transition from a center spool to one of the outer spools, facilitating storage of a bulky fitting and improving winding and unwinding efficiency. The hose reel assembly can be mounted on a vehicle or transportable support structure. The hose reel assembly can enable multiple hoses or hose segments to be stored compactly while minimizing tangling and easing deployment and retrieval. The flanges and apertures can be sized and spaced to optimize hose storage.

Various embodiments of a wire pulling and/or wire fishing tool configured for use within a modular storage system and/or to a modular storage unit incorporating functionality to facilitate use for wire fishing and/or pulling tasks are provided. One or more of the units and/or systems described herein facilitate using modular system, such as for wire fishing, by providing flexible methods for coupling modular units together.

An automatic webbing winding device includes: a base; a winding reel mounted on the base and rotatable around a center of the base; a coil spring mounted on the winding reel, one end of the coil spring is fixed to the winding reel, and the other end of the coil spring is fixed to the base; and a webbing mounted on the winding reel, the webbing includes a fixed end and a free end, the fixed end is fixed to the winding reel, and the free end extends out from the base; when the free end is pulled outward by an external force, the winding reel rotates along a forward direction, and the coil spring is elastically deformed, when the external force is removed, the winding reel rotates along a reverse direction under an elastic restoring force of the coil spring, thereby winding the webbing on the winding reel.

A line sensor deployment and recovery apparatus and system with integrated level-wind. In one embodiment, a line deployment and recovery apparatus with an integrated level-wind, comprising a reel, having an external surface with helical grooves, wherein the grooves facilitate a line; a motor configured to axially rotate the reel; a level-wind shuttle, further comprising: a fairlead configured to selectively feed the line into the helical grooves, or deploy the line from the helical grooves; a shuttle finger configured to align the shuttle with the helical grooves and receive a driving force from the reel's rotations to drive the shuttle; and a shuttle track, oriented parallel to the drum and fixed in a offset position form the helical grooves at an operable track height, configured to facilitate linear traversal of the shuttle along the reel.