A rotary closed-valve vacuum suction device is mounted to a bottom of an object, and has a valve assembly, a sucker, and a valve part. The valve assembly has a top valve seat and a bottom valve seat mounted below the top valve seat. The sucker is mounted to a bottom of the valve assembly. The valve part is inserted through a valve hole of the sucker and the bottom valve seat, and is connected to the top valve seat. When one of the top valve seat and the bottom valve seat is rotated to change the relative position between the bottom valve seat and the top valve seat in a height direction of the valve assembly, the valve part switches the valve hole of the sucker between an open state and a closed state.

A valve trim assembly for use in a shower environment. The valve trim assembly includes an outer covering and a valve assembly. The outer covering includes a first axis disposed through a midpoint of the outer covering. The valve assembly is at least partially disposed within the outer covering and configured to control a flow of fluid. The valve assembly includes a nut coupled to the outer covering, an adapter at least partially disposed within the nut and rotatable about the first axis, and an elongated joint coaxially aligned with the adapter. The nut and the adapter cooperatively define a joint where the adapter rotates within the nut to maintain engagement between the outer covering and a wall.

A lockable relative rotation device can comprise a first body including an outwardly extending inner flange having a first side, and a first interface feature associated with the first side of the inner flange. The lockable relative rotation device can also comprise a second body operable to rotate relative to the first body about an axis and to translate relative to the first body in first and second directions parallel to the axis. The second body can include an inwardly extending outer flange disposed proximate the first side of the inner flange, and a second interface feature associated with the outer flange. The first and second interface features can be operable to selectively engage and disengage one another upon relative translation of the first and second bodies in the first and second directions, respectively. When the first and second interface features are engaged, the first and second bodies can be maintained in a fixed rotational relationship with one another about the axis and, when the first and second interface features are disengaged, the first and second bodies can be free to rotate relative to one another about the axis. Additionally, the lockable relative rotation device can comprise a locking mechanism associated with the first body. The locking mechanism can have a barrier selectively movable in the first direction to maintain engagement of the first and second interface features, and movable in the second direction to facilitate disengagement of the first and second interface features.

The present invention relates to a novel form of self-locking mechanical rebar coupler which is able to easily couple neighboring rebars by way of an inserting plug welded to one side of the rebar, which penetrates a receiving socket which is welded to another piece of rebar. It is then locked into place by a spring-loaded dowel which penetrates the inserting plug when the inserting plug pushes down a cap at the bottom of the receiving socket which had been holding the spring-loaded dowel in place. The purpose of this coupler is to transfer a load against tensile force and compression force in a stable manner by coupling two separate pieces of rebar and locking them into place. Various diameters of rebar can be used in this self-locking mechanical rebar coupler. The assembly by providing a self-locking rebar coupling, is aimed to reduce the size of rebar components which can be combined together on a construction site and improve construction speed.

An elevator car of an elevator system includes a car body and a car frame supportive of the car body. The car frame includes two opposing side frames, each side frame formed from a plurality of side frame segments, including two upright members and one or more upright braces connecting the two upright members, adjacent side frame segments secured to each other via a joint. A method of installation of an elevator car of an elevator system includes positioning a first side frame segment of a plurality of side frame segments adjacent to second side frame segment of the plurality of side frame segments, and securing the first side frame segment to the second side frame segment via a splice joint thereby constructing a car frame of the elevator car. One or more car bodies are installed into the car frame.

A connecting sleeve suitable for the production of a push-pull link bar includes a main body, a coupling section which is formed or arranged on the outer circumferential side on the main body, and a through bore, characterized in that the connecting sleeve has a first seal which is arranged at least partially on the outer circumferential side and a second seal which closes at least the through bore.

A rail track assembly comprises a rail defining a longitudinal channel configured to slidably receive at least a portion of a monitoring drone. An end cap is configured to be coupled to a first longitudinal end of the rail. A charge cap is configured to be coupled to second longitudinal end of the rail opposite the first longitudinal end, the charge cap configured to house a power module for charging the monitoring drone when the monitoring drone is located at the second longitudinal end.

A solar array support structure includes a mounting structure extending a length and configured to receive a solar array, an externally threaded pile extension extending from the mounting structure toward a ground; and a vertical pile extending into the ground, the vertical pile including: a pile body extending between a first end and a second end and including a main body extending from the first end, the pile body further including a conical portion extending from the main body to the second end, and a first helical structure extending around at least one of a portion of the main body and a portion of the conical portion. The first end of the vertical pile is internally threaded and has received the externally threaded pile extension. A vertical pile for a solar array support structure and method of manufacturing the same is further disclosed.

A fitting splice plate connects a cable tray fitting to a cable tray section. The fitting splice plate includes a guard extending in an outboard direction from a second longitudinal portion of a plate body adjacent a first longitudinal portion of the plate body. The guard is adjacent one of an upper side and a lower side of the second longitudinal portion. The fitting splice plate may include both upper and lower guards.

A fixation device for fixing a first part of a surgical instrument to a second part of the surgical instrument. The fixation device has a longitudinal axis and includes a fixation body configured to accommodate a portion of the first instrument part and a portion of the second instrument part therein. A first fastening member and at least one movable first clamping member are configured to clampingly engage at least the first instrument part so as to fix at least the first instrument part to the fixation device. A first actuation member is configured to receive at least a portion of the fixation body. The first actuation member includes a second fastening member configured to engage with the first fastening member. The first actuation member is configured to exert a clamping force on the first clamping member when the second fastening member is in engagement with the first fastening member.