The present invention relates to a sleeve for connecting a steel bar, wherein a body prevents generation of tolerance at the circumferential surface of at least one of an upper steel bar and a lower steel bar through a tolerance generation preventing unit, the body allowing the upper steel bar to be inserted from one side thereof in an axial direction and the lower steel bar to be inserted from the other side thereof in the axial direction.

The present invention relates to a coupler for connecting reinforcing bars which is used for connecting reinforcing bars to each other that are used in a construction site and, more specifically, to a coupler for connecting reinforcing bars which has increased strength and excellent fastening force on reinforcing bars through a structural improvement, and also provides increased convenience in assembly, thereby maximizing the manufacturing efficiency. The present invention has increased strength and excellent fastening force on reinforcing bars through a structural improvement to a coupler body, and does not require a separate fixing means by allowing a plurality of piece bodies to be assembled to a piece body guide provided with a magnet, thereby providing increased convenience in assembly and maximizing the manufacturing efficiency.

A fastening element which can be mounted on the upper side of a positionable formwork wall of a formwork system. The fastening element has an angular element with a first leg and a second leg. The first leg can take the form of a mounting part which can be fastened in a reversibly releasable manner to the positionable formwork wall. As an alternative to this, the first leg can be arranged directly or indirectly on the mounting part. The free end of the second leg has a connection possibility for a push-pull prop or is connected to a push-pull prop. The angular element is preferably designed to be pivotable with respect to the mounting part. With the positionable formwork wall set up, the positionable formwork wall can form, together with the fastening element and the push-pull prop, an arch into which a closing formwork wall can be inserted.

Embodiments of this application relate to connectors configured for coupling to a hollow structure, for joining hollow structures together, and/or for joining a hollow structure to a functional element. A connector may be configured to couple to one or more hollow structures, and may be further configured to couple to one or more functional elements. Exemplary connectors comprise a shell and a plug.

The present disclosure provides an inner-C-forging assembly, an integral front axle assembly, and modification method thereof. The inner-C-forging assembly includes an inner-C-forging and a connection structure. The inner-C-forging is configured for connecting with a kingpin knuckle. The connection structure is configured for connecting with an axle tube. The inner-C-forging is detachably fixed to the connection structure, and the inner-C-forging has different mounting states relative to the connection structure. At different mounting states, a kingpin installation portion of the inner-C-forging has different positions relative to the connection structure. In the present disclosure, vehicle's caster angles on both sides and the pinion to driveshaft angle can be conveniently and independently adjusted while ensuring the support strength.

The disclosure provides a connection and separation device driven by memory alloy wires, including an active end and a passive end. The active end includes a housing, an outer sleeve, fixed sheets, compression springs, a rotating sleeve, a base, memory alloy wires, guide wheels, a lock pin, a limiting sleeve I and a limiting sleeve II. The passive end includes a screw rod, a loading nut, a separation element and an adaptor. The upper end of the screw rod is provided with a threaded section matched with the loading nut, and the lower end of the screw rod is provided with multi-layer oblique protrusions. The multi-layer oblique protrusions extend into the upper part of an accommodating space formed by the limiting sleeve I and the limiting sleeve II. The memory alloy wires are shortened when being electrified, the base and the lock pin move up, the lock pin releases the limit on the lower ends of the limiting sleeve I and the limiting sleeve II, the two limiting sleeves rotate at the same time, the lower parts of the limiting sleeve I and the limiting sleeve II are folded, and the upper parts of the limiting sleeve I and the limiting sleeve II are opened and separated from the screw rod, so as to realize the separation of the active end and the passive end. The disclosure realizes quick separation and has the advantages of no impact, energy saving and environmental protection, small size, high reliability and reusability.

Disclosed in the present specification is to provide a connecting device for cables, in which a connecting portion and a length adjusting portion for connecting the cables are provided to be separated from each other, and a cable of a seat side and the connecting portion are easily attached to and detached from each other. According to one embodiment of the disclosure disclosed herein, proposed is a connecting device for cables, connecting a first cable connected to a folding unit of a seat of a first direction side and a third cable connected to a switch portion at a second direction side opposite to the first direction, the device including: a connecting portion; and a length adjusting portion.

A shelf system with bars and with at least one connecting strut for connecting two bars adjacent to each other is provided. The connecting strut has receiving devices on its end faces. An undercut profile extending substantially parallel to the bar is attached or can be attached to the bar of the shelf system. Every undercut profile has two or more profile parts which are detachable from one another and can be joined together to form mutually flush surfaces. The profile part has a projection, which can be inserted into a recess of a bar, respectively, and the receiving device of the connecting strut can be pushed onto the undercut profile in its joined state.

Solar trackers that may be advantageously employed on sloped and/or variable terrain to rotate solar panels to track motion of the sun across the sky include bearing assemblies and other mechanical features configured to address mechanical challenges posed by the sloped and/or variable terrain that might otherwise prevent or complicate use of solar trackers on such terrain.

Disclosed herein is a non-slip reinforcing bar coupler including: a body which has a body part of a pipe shape, a protrusion part formed in the middle of the body part, a pair of first screw threads formed on the outer surface of the body part and at both sides of the protrusion part, a pair of insertion holes formed at both sides of the body part, and a stopper formed in the middle of the inside of the body part; and a cap which has a cap insertion hole formed at one side, a cap body formed on the inner surface of the other side and having a second screw thread screw-coupled with the first screw thread, and a second inner sloping side formed on the inner surface of the cap insertion hole.