Lamp locked and sealed by cam

Abstract

The invention relates to a lamp locked and sealed by a cam. The lamp locked and sealed by the cam comprises a lamp body (20), a lamp cover (10), a sealing ring (50), a pin shaft (30) and a cam handle (40), wherein the sealing ring (50) is arranged between a contact surface of the lamp body (20) and the lamp cover (10); the pin shaft (30) is arranged on the outer side of the lamp body (20); the axis of the pin shaft (30) is parallel with the contact surface; a through hole (41) is formed at one end of the cam handle (40), so that the cam handle (40) is sleeved on the pin shaft (30) to rotate around the pin shaft (30); one end, where the through hole (41) is formed, of the cam handle (40) has a cam structure (43); the center of the through hole (41) serves as a rotating pivot; a sliding groove (13) is formed on the outer side, opposite to the cam handle (40), of the lamp cover (10); and the bottom of the sliding groove (13) extends below the through hole (41) of the cam handle (40) and contacts with the outer curved surface of the cam structure (43). The gap between the lamp cover and the lamp body is regulated by changing the distance between the outer curved surface of the cam structure (43) and the rotating pivot, so that the lamp realizes the switchover of lock sealing or cover-opening maintenance, is simple in operation, guarantees the sealing pressing force between a front cover and the lamp body, and effectively reduces the external force required by the operation.

Description

technical field [0001] The invention relates to a lamp that needs to be sealed, more specifically, to a lamp that utilizes a cam structure for locking and sealing. Background technique [0002] In professional lighting fixtures, sealing has always been an important issue that plagues product quality. Some components may need to be opened for maintenance or other operations from time to time while sealing, resulting in a contradiction between sealing and opening. At present, in the occasions that have dual requirements for sealing and opening, most of them adopt hinge structure. However, on the one hand, the hinge structure requires a large pre-tightening force to ensure the seal, so the operator needs to use a lot of force to operate. On the one hand, the disassembly and assembly of the hinge structure is troublesome, which affects the efficiency of the maintenance process of the lamps. Contents of the invention [0003] The technical problem to be solved by the present i...

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is to provide a hinge structure that can ensure the sealing performance while having small pre-tightening force and simple operation, aiming at the defects of large sealing pre-tightening force and inconvenient disassembly and assembly required by the hinge structure used in the prior art lamps and lanterns. The Cam Lock Sealed Luminaire

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