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.

A clamp sleeve, including: a body and a first fastening assembly. The body has first and second ends, and includes a receiving portion therein. The receiving portion has first and second openings at the first and second ends. The body is provided with a gap, the gap has two ends extending to the first and second openings, and the gap is communicated with the receiving portion. The body is provided with first extending portions at two sides of the gap along a longitudinal direction, the first extending portions is provided with a first connecting sheet near the first opening, and the first connecting sheet is connected to each of the first extending portions and connected with the first opening. The first connecting sheet is provided with a first thin thread intersecting with the gap. The first fastening assembly is disposed on the first extending portions.

In an aspect, provided is an adjustable telescoping assembly. The adjustable telescoping assembly comprises a first support member and a second support member that is slidable upon the first support member and which defines an interior volume. At least one damping element is provided that extends from outside the second support member, through a corresponding damping element aperture on the second support member into the interior volume and engages the first support member.

Various implementations include a spring biased mounting assembly. The mounting assembly includes a clamp plate with engagement arms extending therefrom and a base plate. The base plate is disposed between the clamp plate and distal ends of the engagement arms. The distal ends of the engagement arms are biased toward a first surface of the base plate. An object, such as a hand held electronic computing device, may be secured between the base plate and the distal ends of the engagement arms. The spring force may be provided by the clamp plate itself (e.g., a spring steel clamp plate) or by a separate spring (e.g., one or more helical springs, leaf springs, or a spring steel plate) disposed between the clamp plate and the base plate.

An adjustable support holder for a gauge device on a magnetic base to provide adaptable positioning and mounting for measuring instruments. The support holder comprises of a gauge engagement platform rotatable with a support base adapted to be mounted on an electro-magnetic attachment for selectively securing on a magnetically attractive surface. An integrated remote locking assembly will selectively release and lock the rotatable platform and attached measuring gauge allowing for 360-degree rotation and orientation there therewith.

A process of making a wear-resistant actuating lever is disclosed. The wear-resistant actuating lever includes a lever body made of metal and an integrally molded cover layer made of a polytetrafluoroethylene-based material. The lever body includes a head segment having an upper major surface, a cam-forming surface, a through hole, and at least one upper concavity formed in the upper major surface. The integrally molded cover layer covers on the head segment and is molded thereon using plastic injection molding, and includes an upper portion covering an upper major surface, a cam portion covering a cam-forming surface, and an upper protuberance portion in the upper concavity.

A head support apparatus for supporting a head of a person. The head support apparatus includes a tube and a rod configured to slidably and lockably couple to the tube. A cup and pad are coupled to an upper end of the rod. In use, a lower end of the tube bears on a support. A person's chin is rested on the pad whereby the weight of the person's head is supported by the head support apparatus.

A device for locking a rod member is provided. The device includes a body section having a vertical hole therein, and a ring-type locking unit and a piston serially arranged along the hole, wherein the rod member is disposed in the hole to be axially movable through the locking unit and the piston. The locking unit may be a lock block including an outer ring having an inclined surface on one side thereof, thereby defining a wedge-type space, an inner ring coaxially disposed in one side of the outer ring and accommodating a pressurizing member interacting with the inclined surface, and a spring disposed in the other side of the outer ring so as to elastically connect the outer ring and the inner ring.

A sand resistant screw connector assembly can be used on the telescoping legs of a tripod assembly. The screw connector may use a trapezoidal thread, such as an Acme thread, for the male and female screw connectors. Such a thread design has been found to help push sand out to assist in cleaning. Therefore, when a tripod is designed using a screw connector having trapezoidal threads, the tripod may be well-suited for use in sandy environments, such as beaches, playgrounds, or the like. Various trapezoidal thread standards may be utilized, including JIS B0216, JIS B0217, JIS B0218, JIS B0222, ANSI B1.5 and ANSI B1.8, for example. The sand resistant screw connector may be used in other application where sand may pose a problem, including beach umbrellas, lawn furniture, beach games, and the like.

The disclosure provides an operating rod assembly and a string trimmer. The operating rod assembly includes a first rod provided with a first limiting piece, a second rod provided with a second limiting piece and a connector for connecting the first rod and the second rod. An outer diameter of the second rod is smaller than an inner diameter of the first rod; the first limiting piece and the second limiting piece are matched to limit the relative rotation angle between the first rod and the second rod. When the connector is in a locking state, two ends of the connector respectively lock the first rod and the second rod; when the connector is in a loosening state, the connector releases the second rod or the first rod, and the first rod and the second rod can rotate and stretch relative to each other.