A back-and-forth movement device includes a guiding section that regulates an operation between a case-side member and a forward/backward member, and a guided section to be guided by the guiding section. In the back-and-forth movement device, a case partly includes a proximate wall portion that is in proximity to the forward/backward member, the guiding section is provided on a side opposite to the forward/backward member with respect to the proximate wall portion, and an engaging section of a restriction member and an extending portion of the guided section extend substantially parallel to each other on the side opposite to the forward/backward member with respect to the proximate wall portion.

The application belongs to the technical field of LED display screen box assembly, and relates to a tension lock and LED display screen box. The tension lock comprises a base, a rotating shaft, a shim and a knob, wherein the base is provided with a sliding hole, one end of the rotating shaft is fixedly connected with the knob, the other end of the rotating shaft is inserted into the sliding hole, the shim is rotationally connected with the rotating shaft, and the distance between the shim and the knob is kept constant; Turning the knob can make the rotating shaft rotate and slide along the axial direction of the sliding hole to make the shim move away from or close to the base. The tension lock can effectively improve the installation efficiency of LED display screen box.

A latch structure includes a moving member, a nut and a screw. The moving member includes a base plate, a receiving portion and a limiting portion. The receiving portion has a first end portion and a second end portion. The first end portion is connected to the base plate. The limiting portion is disposed at the second end portion of the receiving portion. The nut is fixed into the receiving portion and positioned proximate to the first end portion. The screw is received in the receiving portion and confined to between the limiting portion and the nut.

Disclosed is a door securing apparatus. The door securing apparatus includes a base member, a pivoting arm extension, and a door-contacting member that act in concert to secure a door in a closed position.

According to one aspect of the invention, a latch is configured to fix a panel relative to a frame. The latch includes a housing configured for engagement to the panel. The housing defines an aperture extending along a longitudinal axis, and further defines a cam surface facing in a direction along the longitudinal axis. A shaft extends within the aperture of the housing and along the longitudinal axis. The shaft is mounted for at least one of rotational movement relative to the housing about the longitudinal axis and axial movement relative to the housing along the longitudinal axis. A barrier wall is mounted for axial movement relative to the housing along the longitudinal axis. The barrier wall at least partially overlaps with the housing along the longitudinal axis. A shaft surface extends radially outwardly from the shaft relative to the longitudinal axis. The shaft surface contacts the cam surface defined by the housing. The shaft is configured to be coupled to a pawl for engagement of the frame. The cam surface defined by the housing is configured to guide the movement of the shaft relative to the housing along the longitudinal axis or about the longitudinal axis as the shaft is moved within the aperture defined by the housing along the longitudinal axis or about the longitudinal axis and as the shaft surface of the shaft and the cam surface of the housing move relative to one another, such that the pawl can engage or disengage the frame. The barrier wall and the housing move relative to one another along the longitudinal axis in a range of relative positions, and the barrier wall and housing together inhibit the ingress of unwanted materials into the aperture of the housing throughout the range of relative positions.

According to one aspect of the invention, a latch is configured to fix a panel relative to a frame. The latch includes a housing configured for engagement to the panel. The housing defines an aperture extending along a longitudinal axis, and further defines a cam surface facing in a direction along the longitudinal axis. A shaft extends within the aperture of the housing and along the longitudinal axis. The shaft is mounted for at least one of rotational movement relative to the housing about the longitudinal axis and axial movement relative to the housing along the longitudinal axis. A barrier wall is mounted for axial movement relative to the housing along the longitudinal axis. The barrier wall at least partially overlaps with the housing along the longitudinal axis. A shaft surface extends radially outwardly from the shaft relative to the longitudinal axis. The shaft surface contacts the cam surface defined by the housing. The shaft is configured to be coupled to a pawl for engagement of the frame. The cam surface defined by the housing is configured to guide the movement of the shaft relative to the housing along the longitudinal axis or about the longitudinal axis as the shaft is moved within the aperture defined by the housing along the longitudinal axis or about the longitudinal axis and as the shaft surface of the shaft and the cam surface of the housing move relative to one another, such that the pawl can engage or disengage the frame. The barrier wall and the housing move relative to one another along the longitudinal axis in a range of relative positions, and the barrier wall and housing together inhibit the ingress of unwanted materials into the aperture of the housing throughout the range of relative positions.

The present invention is directed to a rolling suitcase that is pulled depthwise rather than breadthwise, and incorporates a split handle that separates when the suitcase is to be opened. The split handle may incorporate a locking mechanism that includes a mechanical, magnetic, or other connector for locking and releasing the split handle halves. The suitcase maximizes internal volume by the use of inset wheels and handle extensions, and also provides for protections against many common types of breakage.

A locking mechanism for applying in a computer case is disclosed. The locking mechanism comprises: an actuating unit and a locking member. The actuating unit is pivotally connected to one of two vertically-disposed side plates of the computer case by one end thereof, and comprises a pivot member and a latching member. In the present invention, the actuating unit rotates along a first direction parallel to the vertically-disposed side plate, so as to decrease space required by operating the locking mechanism. Such that the locking mechanism brought advantages of great space-saving, high capacity and low cost of production cost.

A locking mechanism for applying in a computer case is disclosed. The locking mechanism comprises: an actuating unit and a locking member. The actuating unit is pivotally connected to one of two vertically-disposed side plates of the computer case by one end thereof, and comprises a pivot member and a latching member. In the present invention, the actuating unit rotates along a first direction parallel to the vertically-disposed side plate, so as to decrease space required by operating the locking mechanism. Such that the locking mechanism brought advantages of great space-saving, high capacity and low cost of production cost.

Latch assemblies and systems are disclosed. One latch includes a latch and a receiver. The latch has a housing and a pin extending from the housing. The pin is mounted for longitudinal movement along a pin axis. The latch further includes a motor coupled to move the pin longitudinally. The receiver defines an aperture extending along a receiver axis and positioned to receive the pin of the latch. The receiver has a retainer biased toward the receiver axis. The latch assembly has an open position in which the pin is extended distally along the pin axis and received in the aperture, and a latched position in which the pin is retracted proximally along the pin axis while the retainer is engaged with the pin. One latch system includes a plurality of latch assemblies configured to move to the latched position after all latch assemblies are in the open position.