Disclosed are a rotary knob lock, a maintenance tool and an LED display. The rotary knob lock includes a lock body, the lock body includes a head part and a limit part, a diameter of the head part is larger than a diameter of the limit part, the head part is provided with a first magnet, the limit part is provided with a limit block; the maintenance tool includes a body, the body is provided with a second magnet inside, the second magnet and the first magnet of the rotary knob lock are magnetically attracted to each other; the LED display includes an LED display module and a cabinet, the LED display module is provided with a rotary knob lock, the cabinet is provided with an avoidance hole, when the LED display module is mounted on the cabinet, the first magnet and limit block are located on both sides.

According to the present invention, we present a system employed in the manufacture of furniture requiring plastic fabric rotary assembly meshes comprising a plurality of parts that can be used repeatedly, as all of them are made up of first male locking elements and second female locking elements that do not require extraneous fastening elements for their placement.

According to the present invention, we present a system employed in the manufacture of furniture requiring plastic fabric rotary assembly meshes comprising a plurality of parts that can be used repeatedly, as all of them are made up of first male locking elements and second female locking elements that do not require extraneous fastening elements for their placement.

A connecting element for mechanically connecting at least two components has a closure head for abutment against a first component and having a closure foot for abutment against a second component and for bracing the latter against the first component in a rotated final-mounting position. A stem portion extends between the closure head and the closure foot, which is spaced apart axially from the closure head in the longitudinal direction of the stem. The closure head has a sealing surface that extends in the longitudinal direction of the stem portion and sealingly abuts against a corresponding sealing surface of a recess in the first component. There is also described a connecting arrangement with a first component and at least one second component and a corresponding connecting element. The latter may be made from a single material component.

A connecting element for mechanically connecting at least two components has a closure head for abutment against a first component and having a closure foot for abutment against a second component and for bracing the latter against the first component in a rotated final-mounting position. A stem portion extends between the closure head and the closure foot, which is spaced apart axially from the closure head in the longitudinal direction of the stem. The closure head has a sealing surface that extends in the longitudinal direction of the stem portion and sealingly abuts against a corresponding sealing surface of a recess in the first component. There is also described a connecting arrangement with a first component and at least one second component and a corresponding connecting element. The latter may be made from a single material component.

This disclosure describes a rotational coupling mechanism for releasably coupling a device to a mounting platform. In one example, a user may nest a device within the mounting platform and perform a single rotation of the nested device to toggle between a locked position and an unlocked position. The user may continue the single rotation of the nested device, in the same clockwise or anticlockwise direction, to toggle the device from the unlocked position and back to the locked position. In a locked position, the device is restricted from translation relative to the mounting platform, however, the device may continue to rotate in a clockwise or counterclockwise direction to toggle between a locked and unlocked position. In an unlocked position, the device may disengage freely from the mounting platform and is thus subsequently free to move in any translational direction or about any rotational axis.

The present disclosure describes quick connect features of a mover assembly for a linear motor system. The mover assembly may include a platform and at least two movers. The movers may include a linkage feature and the platform at least two linkage elements. The movers may be removably coupled to the platform by rotating the movers relative to the platform between an engaged position and a disengaged position. In an engaged position, the linkage element of the platform may retain the linkage feature of the mover and the linkage element and the linkage feature may translationally couple the mover and the platform.

Disclosed is an arc-shaped adjustment lock, including: a base, an adjustment component, and a pressing lock assembly. The base is connected to a first LED cabinet. The base has a first arc-shaped portion. The adjustment component is connected to a second LED cabinet. The adjustment component has a second arc-shaped portion fitted with the first arc-shaped portion. The first arc-shaped portion and the second arc-shaped portion are slidingly matching with two elastic beads along an arc through a staggered double V-shaped groove group. The first arc-shaped portion and the second arc-shaped portion are locked through the pressing lock assembly after sliding along the arc.

A ground-fixing system for a tire characteristics sensor housing (10) comprises: a fixing plate (1) comprising a plurality of recesses (2) of a given profile distributed over the surface of the fixing plate; and a plurality of fixing pins (3) of substantially corresponding profile, similarly distributed on a fixing face of said sensor housing (10), the shapes and dimensions of the recesses (2) and of the pins (3) for fixing being provided so as to allow, on the one hand, in a position of insertion of the pins, engagement of the latter in said recesses and, on the other hand, in a locking position of the pins, fixing of the sensor housing (10) on the fixing plate (1).

A ground-fixing system for a tire characteristics sensor housing (10) comprises: a fixing plate (1) comprising a plurality of recesses (2) of a given profile distributed over the surface of the fixing plate; and a plurality of fixing pins (3) of substantially corresponding profile, similarly distributed on a fixing face of said sensor housing (10), the shapes and dimensions of the recesses (2) and of the pins (3) for fixing being provided so as to allow, on the one hand, in a position of insertion of the pins, engagement of the latter in said recesses and, on the other hand, in a locking position of the pins, fixing of the sensor housing (10) on the fixing plate (1).