The present invention discloses a sleeve for sleeving on an object, which includes: a first body portion, a second body portion, and a first groove. The first body portion has a first reception portion, and the first reception portion has a first notch, and the first notch is provided with a first fastening member. The second body portion is coupled to the first body portion. One end of the first groove is disposed at an adjacent position between the first notch and the second body portion, and the other end of the first groove extends to an appropriate position along an outer edge of a connection between the first body portion and the second body portion. The first groove is separated from the first reception portion by a first thin wall. One end of the object penetrates through the first reception portion, and the first notch is pressed by the first fastening member so that the first groove is broken along the first thin wall to form a first broken opening. The first notch is pressed and tightened by the first fastening member so that the first body portion and the object are fixed to each other.

Provided is a telescopic tube having a stabilizing structure, including: a first tube having an internal and external end, wherein at least three longitudinal stabilizing lines are protruded from an outer wall of the internal end, and at least one stabilizing line has a blocking surface disposed at one end thereof near the external end; and a second tube having an inner diameter larger than an outer diameter of the first tube and a diameter of an outer periphery of the stabilizing lines, and having an upper and lower end, wherein the upper end is provided with a blocking portion having an opening. The second tube is sleeved outside the first tube, the external end penetrates through the opening to expose outside the second tube, and the internal end remains therein. Therefore, the first tube can be stably slidable inside the second tube due to the stabilizing lines.

To provide a fixing device improved in fixation of an annular member to a cylindrical member. The fixing device for fixing the annular member to the cylindrical member that includes a first fixing portion and a second fixing portion. The first fixing portion includes an annular portion and an adjustment portion. The annular portion covers an outer peripheral surface of the cylindrical member from outward in a radial direction. A circumferential length of the annular portion is adjustable with the adjustment portion. The second fixing portion is fixed to the first fixing portion and fixed to the annular member.

Present invention relates to a double-sided open-type conduit box for wiring electric wires, capable of facilitating wiring work by a simple structure and simultaneously providing convenience in manufacturing and assembling the box. According to the present invention, provided is a double-sided open-type conduit box for wiring electric wires, comprising: a box body in which inlet and an outlet, rough which a cable goes in and out, are formed at both sides of an inner space of a predetermined size, and wherein first and second openings are formed to open one side and the other side of the inner space; first and second covers configured to open and close the openings respectively; and guide wheels mounted in the inner space and rolled to guide the progress of the cable; and wheel coupling portions formed to mount the guide wheels.

A telescopic tube assembly having a fixing structure, including: a first tube having at a receiving end offset toward a predetermined direction to form an inward offset arc portion and an outward arc portion opposite to each other; a second tube having an inserting end, wherein an inner diameter of the first tube is greater than an outer diameter of the second tube; and a fastening structure disposed at the receiving end of the first tube, wherein the inserting end of the second tube is inserted into the first tube through the receiving end; by locking the fastening structure, the second tube is pushed against the inward offset arc portion and fixed with the first tube; by loosening the fastening structure, the second tube is released from the inward offset arc portion and is movable relative to the first tube.

A clamping seat of the telescopic rod comprises a pipe seat, a movable clamp and a fixed clamp. The pipe seat comprises an inner pipe space and an outer pipe space to insert the inner pipe and the outer pipe. The pipe seat comprises a side opening beside the inner pipe space and a side space beside the outer pipe space. The movable clamp comprises an arc block beside the side opening, and a screwing member pressing the arc block into the inner pipe space then to press and fix the inner pipe. The fixed clamp comprises a clamping plate in the side space, and a tightening bolt pressing the pipe seat against the clamping plate, allowing the clamping plate to press the outer pipe. Accordingly, the arc block and the clamping plate contact the pipes in a large area to avoid local deformation and prevent damaged together.

A tool for cleaning a structure is provided. The tool includes an extension pole having a length, the extension pole including three or more cylindrical segments having different respective diameters, the segments being arranged in a telescoping configuration to permit the length of the extension pole to be adjusted to a desired length; locking nuts structured to releasably lock adjacent ones of the segments to one another; a grip provided on a most proximal one of the segments; and an attachment member provided on a most distal one of the segments, the attachment member being structured to removably attach at least one cleaning accessory.

A modular safety fence assembly is disclosed. The safety fence may include a fence panel assembly having a top rail, a bottom rail, and mesh panel. The safety fence panel assembly may also support post assembly capable of supporting the fence panel assembly and an anchor assembly which may anchor the support post assembly to the floor using one or more relatively shallow holes formed in the floor.

A clamping seat includes a pipe seat, a movable clamp and a fixed clamp. The pipe seat includes an inner pipe space and an outer pipe space to insert the inner pipe and the outer pipe. The pipe seat includes a side opening beside the inner pipe space and a side space beside the outer pipe space. The movable clamp includes an arc block beside the side opening, and a screwing member pressing the arc block into the inner pipe space then to press and fix the inner pipe. The fixed clamp includes a clamping plate in the side space, and a tightening bolt pressing the pipe seat against the clamping plate, allowing the clamping plate to press the outer pipe.

Disclosed herein is an adjustable shoring beam having a hook assembly configured to mate with E-track mating features. The adjustable shoring beam can be adjusted over a predetermined length range by adjusting the tube assembly and the rod assembly. In some embodiments, the extension length is fixed using a fixing clamp coupled to the tube assembly and the rod assembly. A connecting clamp and bracket may be used to couple a first adjustable shoring beam to a second adjustable shoring beam.