Freezer two-stage locking handle

Abstract

This invention relates to a two-stage locking handle for a freezer, comprising: a handle body for mounting in a freezer; a locking assembly disposed on the handle body, including a lock cylinder and a bolt connected to the lock cylinder, the bolt being rotatable with the lock cylinder in a rotational direction to a locked position or a released position; and a limiting mechanism operable to switch between a first position and a second position, including a first limiting component and a second limiting component, the first limiting component including at least one first limiting structure, and the second limiting component including at least one second limiting structure. The limiting structure includes a first limiting component and a second limiting component, one of which is attached to the handle body, and the other of which is attached to the lock assembly. When the limiting mechanism is in the first position, the first limiting structure and the second limiting structure mutually limit each other in the rotation direction, preventing the lock cylinder from rotating to the release position. When the limiting mechanism is in the second position, the first limiting structure and the second limiting structure do not mutually limit each other in the rotation direction, allowing the lock cylinder to rotate to the release position.

Claims

1. A two-stage locking handle for a freezer, comprising: A handle body for mounting in a freezer; a lock assembly disposed on the handle body, including a lock cylinder and a bolt connected to the lock cylinder, the bolt being able to rotate together with the lock cylinder in a rotational direction to a locked position or a released position; and a limiting mechanism operable to switch between a first position and a second position, including a first limiting component and a second limiting component, the first limiting component including at least one first limiting structure, the second limiting component including at least one second limiting structure, one of the first limiting component and the second limiting component being disposed on the handle body, and the other of the first limiting component and the second limiting component being disposed on the lock assembly; wherein, when the limiting mechanism is in the first position, the first limiting structure and the second limiting structure mutually limit each other in the rotational direction, preventing the lock cylinder from rotating to the released position; when the limiting mechanism is in the second position, the first limiting structure and the second limiting structure do not mutually limit each other in the rotational direction, allowing the lock cylinder to rotate to the released position.

2. The freezer two-section locking handle as claimed in claim 1, wherein the handle body includes a mounting groove and at least one fastener passing through the mounting groove and for connection to the freezer.

3. The freezer two-section locking handle as described in claim 2, wherein the handle body further includes a cover disposed on the mounting groove.

4. The freezer two-section locking handle as described in claim 1, wherein the first limiting component includes a cylindrical part, an operating part and a latching part, the cylindrical part is connected to an inner side of the handle body, the latching part passes through the cylindrical part and is connected to the operating part, the operating part protrudes from an outer side of the handle body, the first limiting structure is provided on the latching part, and the second limiting structure is provided on the locking tongue.

5. The freezer two-section locking handle as described in claim 4, wherein the locking member includes a groove, the first limiting structure protrudes from the groove, the second limiting structure is recessed in the locking tongue, the locking tongue partially extends into the groove, and the second limiting structure is movable relative to the groove.

6. The freezer two-section locking handle as described in claim 4, wherein the first limiting component further includes an elastic element disposed between the cylinder and the operating component.

7. The freezer two-stage locking handle as described in claim 1, wherein the locking assembly further includes a locking member for installation on the freezer, wherein when the latch is in the locked position, the latch and the locking member mutually limit each other in a direction transverse to the direction of rotation, so that the freezer cannot be opened.

8. The freezer two-section locking handle as claimed in claim 7, wherein the locking member includes a base and an arm extending from the base, the base being for mounting on the freezer and the arm being for mutually limiting the locking tongue.

9. The freezer two-section locking handle as claimed in claim 5, wherein the handle body includes a mounting groove and at least one fastener, the at least one fastener passing through the mounting groove and for connection to the freezer; the handle body further includes a cover covering the mounting groove; a insertion hole is provided in the mounting groove, the cover is provided with a post, the post being inserted into the insertion hole; the cylindrical member includes a non-circular through hole, the latching member includes a non-circular body, the body being non-rotatably inserted through the through hole; the operating member and the latching member are detachably screwed together; the first limiting member further includes an elastic member, the elastic member being provided with... Between the cylinder and the operating member; the lock assembly further includes a latch for installation on the freezer. When the latch is in the locked position, the latch and the latch mutually limit each other in a direction transverse to the rotation direction, preventing the freezer from being opened; the latch includes a base and an arm extending from the base. The base is for installation on the freezer, and the arm is for mutual limiting with the latch; the second limiting structure includes two recesses. When the latch is in the locked position, one recess corresponds to the first limiting structure, and when the latch is in the released position, the other recess corresponds to the first limiting structure.

10. The freezer two-section locking handle as claimed in any one of claims 1 to 9, wherein the lock cylinder includes a non-circular assembly section and the bolt includes a non-circular assembly hole, the assembly section being non-rotatably inserted through the assembly hole.

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