See attached Figure 1 ~ 8 A lock mechanism with a status indication function of the present disclosure, comprises a housing 1, a cover 2 and an indicator 3, the cap 2 has a central axis 21, and is mounted to surround the latched position between an unlocked position and the central axis, with respect to the rotational movement of the housing 1, the pointer 3 is interposed between the cap 1 and the housing 2, the indicator 1 indicates in a cover 3 having a relationship with the lid portion 31, the indicator 3 is a projection 11 may be pivoted about the mounting in the housing 1, when the pointer 2 3 from the unlatched position to the latched position of the rotary lid with respect to the cover 2 from the center axis 21 move radially outwardly, so that the indicator indicating portion 31 of the lid 3 is no longer in covering relation; unlock the lid lock mechanism and a corresponding latch operation, the lid 2 from the latched position to the unlocked position when driving the indicator 3 rotates around a projection 11, the projection 11 may be a bolt-like structure integrally formed on the housing 1 (for ease of molding and installation, the present embodiment the priority mode), may be is assembled to the pin of the housing, or integrally formed with the bolt-like structure on the indicator, the indicator expanded, indicating no longer covered by the lid portion; provided with radially extending, with the cap 22 about the central axis of rotation 21 of the radial side portion 22, the indicator 21 along a central axis 3 comprises a circumferentially disposed active and passive indicator indicator 3a 3B, active indicator 3a along the central axis 21 extends in a circumferential direction, mating cam surface of the cam 3a-1 and 3a-1 with the stopping surface end portion 3a corresponding to the active indicator is pivotally mounted at one end of the center 3a-2, side portions 22 along the radial mating surface 3a-1 of the cam slide to cause active indicator 3a around the center of the lid pivoted away from the projection axis 21 of the radial portion 22 side presses the stop bit indicator active end portion 3a 3a-2 and 3a promote active indicator indicating pivoted about the projection through cover portion 31 covers the recovery position 2 (e.g. Figure 5 Shown), the active and passive indicator indicator 3a 3b via toothed gearing drivingly connected, so that the passive indicator 3a 3b launched simultaneously with the active indicator and collapsed. like Figure 5 to 8 Shown, when with the lid from the latched position to the unlocked position, the radial side portion of the cam 22 slides along the mating face 3a of the active pointer, the pointer to cause the active pivot about the boss away from the cover central axis is gradually extended indicating portion, and the cap is no longer in the coverage relationship, at the same time, the passive indicator active indicator driving teeth transmission via a synchronous action by means passive and active pointer indicator launched simultaneously achieve reliable indication; in the opposite direction of rotation as a lid, the passive indicator can be synchronized with the active indicator retracted; indicator when active and passive indicator initial deployment, the lid in the unlocking direction angle of rotation can be adjusted as needed, such as may be employed starts when the lid is rotated in the unlocking direction, i.e. rotation indicator driven to expand, the cover may also be employed after a certain angle of rotation, such as after 15 ° (eg Figure 5 ~ 8 ), It starts to drive the expansion action indicator; active indicator expands to achieve an initial fully expanded state, the cap is rotated in the unlocking direction the angle may be adjusted as needed; using a cam side portion in the radial direction with the active indicator surface, stopping at the drive end with the folded and unfolded indicator, a simple structure, easy molding process, can be formed with a reliable, easy assembly operation, and the indicator associated with active indicator implementation operation of transmission through the teeth and passive indicator designed to provide a reliable indication, and interconnected active and passive pointer indicator can contain another, to achieve the locking configuration, stable and reliable mechanism. As disclosed in the prior art, the cover may be configured to receive the cap from the converter latched position to the unlocked position of the actuator. The drive mechanism for actuating the latch between the latched and unlocked states. Radial side portion 22 is configured to preferentially radially projecting between the transition portion and the base circle surface of convergence by a cam shape.
Both of the passive indicator 3b and the active indicator 3a extend in the center axis 21, the passive indicator 3b rotates about the distal end 3b-3 and the active indicator 3a of the passive indicator 3b rut to the active indication. The distal 3a-3 of the rotation of the 3A rut to each other is adjacent, so that the active indicator and the passive indicator are remote from the one end of the center of the self-supporting, and the passive indicator 3b is provided on the passive indicator 3b. The positions 3b-1 extending circumferentially circumferentially circumferentially in the center axis 21, which is sliding along the radial side convex portion 22, and then reaches the active indicator and the passive indicator synchronous open, let the position 3B-1 can be taken to the radial side convex portion 22, the cover 2 rotates from the latch position to the unlocked position, the radial side convex portion 22 can slide out of the cam mating surface 3a-1 and enter the passive indicator The bit 3b-1 of 3B is located, and the bit portion 3b-1 and the radial side convex portion 22 correspond to constitute the passive indicator 3b to confut the radial side convex portion 22 to remain in the lid around the convex pivot. 2 The opening position of the central axis 21. It is possible to make the passive indicator to be bonded to the position of the cam mating surface on the active indicator to the position of the passive side convex portion, and the radial side convex portion can be rotated from the active indicator. Enter the position where the passive indicator is located, expands the rotation angle range value of the latch position to the unlock position, and achieve more flexible angle design, the open-side convex portion on the passive indicator is restricted. Therefore, the active indicator and the passive indicator are always in the expanded state when the cover is in a non-latch position.
 The lid is required to be defined, thereby reaching the knob angle of the lock mechanism opening and closing operation, the present invention is mainly defined for the lid to the unlocking direction, and can rely on the external defined structure to the cover rotation limit angle It is defined to facilitate the implementation of the defined, and the passive indicator 3b connects the stop portion 3B-2, the stop portion 3b-2 and the radial direction of the stop portion 3b-2, the stop portion 3b-2 and the radial direction at one end of the movable indicator 3b pivot center. The side convex portion 22 abuts, thereby constituting the limit position of the unlocking direction of rotation of the cover 2. The passage of the passive indicator restriction is limited, the structure is simple, and reliable.
 The passive indicator 3b is disposed at one end of the pivot projection to the active indicator 3a, and the tooth transmission includes a first in the active indicator 3a to rotate around the active indicator 3a pivot center. The meshing teeth 3a-4, and the second engaging teeth 3b-4 formed around the passive indicator 3b pivotally rotated in the center of the passive indicator 3b, and the first engraving teeth 3a-4 mesh 3b-4 transmission is engaged with the second engagement teeth. The transmission structure is simple, and the assembly and work are stable and reliable. Of course, in the case where the transmission distance is not considered, a combination of multiple gears can be used to achieve linkage between the active indicator and the passive indicator.
 According to the invention, it is created and combined with prior art, and the lock mechanism can be set to various types of latches, such as a simple cam lock. One end of the housing 1 has a disc top portion 12 and a positioning shaft hole 13 in which the top portion is formed, and the cover 2 includes a occlusion ring 23 opposite the top portion and the shaft 24, and the shaft 24 is axially shaft 24. The positioning is in line with the positioning shaft hole 13, and the occlusion ring 23 is formed to form a spacer at which the disc-shaped top portion 12 forms a receiving indicator, and a radial side convex portion 22 in the occlusion ring 23 corresponding to the interval 4, radial side convex portion 22 is located in the interval 4. The mating structure of the housing and the cover is simple, and the insertion mounting of the indicator is convenient, and the overall structure is simple and compact.