A method of laying an optical fiber comprises providing a continuous optical fiber, a first segment of optical-electrical hybrid cable having a first fiber receiving tube, and a second segment of optical-electrical hybrid cable having a second fiber receiving tube. The optical fiber is laid into the first fiber receiving tube using an air-blowing device. A leading end of the optical fiber is fixed in a transfer apparatus after the leading end passes through an outlet of the first fiber receiving tube. A portion of the optical fiber which has passed through the first segment is wound in the transfer apparatus until the optical fiber is completely laid in the first segment. The leading end of the optical fiber is detached from the transfer apparatus. The portion of the optical fiber which has passed through the first segment is laid into the second fiber receiving tube using the air-blowing device.

An intelligent cable storage drum system for use in a pipe inspection system is disclosed. The system may include a cable storage drum, a video push-cable removably disposed on the cable storage drum, the video push-cable having a proximal end and a distal end, a video camera head having a camera output for providing analog or digital images or video output signals, and a transceiver module operatively coupled to the camera output for receiving the analog or digital images or video output signals and sending the received signals to a remote receiver.

A cable reel for audio-visual device includes an upper base and a lower base attracted to an external device. An audio-visual device hangs on a top of the lower base. The upper base cooperates with the lower base whereby connection cables are spooled and accommodated in an upper circular groove of the upper base and a lower circular groove of the lower base. The present invention places the audio-visual device so that a user can easily spool connection cables of the audio-visual device with one hand. Once the audio-visual device is not needed, the user can rapidly and conveniently manage cables and place the audio-visual device without worrying about the inner breaking of the connection cables resulted from entangling the connection cables.

A coiling device on which a rope, extension cord, or other materials can be coiled. A coiling device allows for additional tools to be included and/or coupled to it. A coiling device that can be coupled to a shaft, whether telescopic or otherwise. A coiling device that can be coupled to a shaft via a clamp.

A receptacle providing secure protection for its contents and comprising a housing with an opening, and a cover member pivotably attached to the housing to move between a closed position and an opened position. In the closed position, a locking mechanism may lock the housing and cover into engagement. In the open position, convenient access is provided to the interior of the housing and the contents. The cover member may be equipped with a retaining member for wrapping wires or cables in an organized fashion.

A flexible layer support structure and a retractable device is disclosed. The flexible layer support structure includes a first thin sheet and a second thin sheet arranged in parallel with each other, as well as and a folding spring group sandwiched between the first thin sheet and the second thin sheet and arranged in parallel. The curved elastic pieces in the folding spring group are smoothly overlapped and connected with the thin sheets, so as to enclose a hollow thin-walled elastic structure that can be overlapped and rolled up, can be automatically straightened and has a flat surface. The retractable device includes a winding shaft, a pressure roller, and a flexible layer support structure installed on the winding shaft. The flexible layer support structure of the present disclosure has the advantages in lightweight, high storage ratio, large unfolded area, simple winding, large load bearing capacity, and less damage.

A portable hose storage assembly includes a reel. A hose is wrapped around the reel thereby facilitating the hose to be stored. A bracket is coupled to the reel. The bracket guides the hose when the hose is wrapped around the cylinder. A base is provided and the base may be positioned on a support surface. The reel is selectively positioned on the base.

A collapsible cord spool 100 includes a base 102, defining one or more pivots 104, 106, and mounted to a power converter block 108 having a cord 110. The collapsible cord spool 100 further defines first and second cord cleats 112, 114. The first and second cord cleats 112, 114 include opposed projections 116, 118. The first and second cord cleats 112, 114 are movable about one or more pivots 104, 106 and may be stowed or deployed. In the deployed position, the first and second cord cleats 112, 114 define a cord wrapping region 302 to receive windings of the cord 110.

A cable reel for audio-visual device includes an upper base and a lower base attracted to an external device. An audio-visual device hangs on a top of the lower base. The upper base cooperates with the lower base whereby connection cables are spooled and accommodated in an upper circular groove of the upper base and a lower circular groove of the lower base. The present invention places the audio-visual device so that a user can easily spool connection cables of the audio-visual device with one hand. Once the audio-visual device is not needed, the user can rapidly and conveniently manage cables and place the audio-visual device without worrying about the inner breaking of the connection cables resulted from entangling the connection cables.

An intelligent cable storage drum system for use in a pipe inspection system may include a cable storage drum, a video push-cable disposed on the cable storage drum having a proximal end and a distal end for coupling to a camera, and a transceiver module operatively coupled to an output at the distal end of the camera for providing camera output signals to the transceiver module.