Patent ID: 11927038
Assignee: SHANG TIAN ALUMINUM CO., LTD.
Field: Civil engineering (Other fields)
Classification: CPC E | IPC E

Claim 0:
1. A locking device disposed on a horizontal sliding window, wherein the horizontal sliding window comprises a sash and a frame; the sash is slidably disposed in the frame; the sash has a vertical surface and a mounting groove that is recessed into the vertical surface; the locking device comprises:
a locking structure disposed in the mounting groove, wherein the locking structure comprises:
a block movable between a first position and a second position and having an outer surface, wherein when the block is located in the mounting groove and the outer surface of the block is parallel to the vertical surface of the sash, the block is defined to be located at the first position; when a part of the block protrudes out of the vertical surface of the sash to allow the outer surface of the block being distant from the vertical surface of the sash, the block is defined to be located at the second position;
a linkage member connected to and driven by the block;

a switch adapted to control the block to move from the first position to the second position; when the block is located at the first position, the linkage member is engaged with the frame to lock the sash to the frame; when the block is located at the second position, the block drives the linkage member to disengage from the frame, thereby allowing the sash to be movable within the frame;
an engaged structure that comprises a lock keeper disposed on the frame; when the block is located at the first position, the linkage member is engaged with the lock keeper to lock the sash to the frame; when the lock is located at the second position, the block drives the linkage member to be disengaged from the lock keeper, thereby allowing the sash to be movable within the frame;
wherein the sash is slidable in a horizontal direction along the frame; the block is moved along an axial direction between the first position and the second position; when the block is moved in the axial direction, the linkage member is driven to move in a vertical direction; the horizontal direction, the vertical direction, and the axial direction are not parallel to each other;
wherein the lock keeper has a slot; the linkage member is able to pass through the slot; in the vertical direction, the slot has a first section and a second section; the linkage member has a head and a connecting portion, wherein the head extends along the horizontal direction; the connecting portion connects the block and the head; an external diameter of the head is greater than a hole size of the first section and is smaller than a hole size of the second section, the hole size of the first section refers to the width of the first section, and the hole size of the second section refers to the width of the second section; when the block is located at the first position, the linkage member is located in the first section of the slot, allowing the head abutting against a side of the lock keeper; when the block is located at the second position, the linkage member is located in the second section of the slot.