Patent Application
20220243497
The invention relates to an electronic lock with adjustable dead latch channel location, especially the one that can adjust dead latch channel location directly at the plate of the electronic lock.
The electronic lock is used as the access control system. The difference from the genera lock is that the electronic lock cannot be used alone and must be operated with a mechanical lock box (such as a deadbolt lock, etc.). Install the electronic lock on the door frame and electronically control the lock, so that the mechanical lock box can be directly pushed or pulled open without being used; therefore, the access control system uses the electronic lock, which can be accessed electronically or directly with the key to open the mechanical lock box to achieve the convenience of electric control and manual use.
U.S. Pat. No. 8,157,302B1 discloses an electronic lock. The longitudinal length of the housing cavity is usually much larger than that of the latch bolt for making the housing cavity easy to align the latch bolt of the mechanical lock box while installing the electronic lock on the door frame, and the latch bolt of the mechanical lock box is also equipped with a dead latch, so the design of the electronic lock must also consider whether the dead latch can be ejected smoothly when the door is opened. This patent let the ramp element that guide the latch bolt exits the electronic lock has a channel, and the channel on the ramp element is adjusted to align with the dead latch, and then the screw is used to position the ramp element; however, this patent must disassemble the entire electronic lock from the door frame and the locking screw of the electric lock body must be loosened in order to adjust the position of the dead latch channel, which is very inconvenient. Loosening the locking screw of the electric lock body is risky, the electronic lock may malfunction due to human error during the process.
It is a primary objective of the present invention to solve the problem that the electric lock must be uninstalled from the door frame and the screw must be loosen in order to adjust the position of the dead latch channel, and having the effect that doesn't need to uninstall the electric lock and the screw, and can adjust the dead latch channel location directly at the plate of the electronic lock.
In order to achieve the above objectives, the present invention comprise: an electronic lock body, having a housing cavity and a latch bolt; a plate, combined to the electronic lock body, and beside covering the electronic lock body, the plate extended upward and downward to the opening side of the plate, further having a gap for exposing the housing cavity and the latch bolt; a fixed adjust element, two ends of the fixed adjust element are combined to the bottom surface of the plate, the middle section of the fixed adjust element is arranged below the gap, and set a fixed channel and a fixed positioning unit; and an active adjust element, sleeved on the middle section of the fixed adjust element and corresponding to the latch bolt set a ramp element, arranged between the bottom surface of the plate and the middle section of the fixed adjust element, the ramp element having an active channel relative to the positioning channel, and relative to the fixed positioning unit having an active positioning unit, the width of the active channel is narrower than the width of the fixed channel.
Moreover, the middle section of the fixed adjust element is a trapezoidal rod, the surface of the trapezoidal rod which toward the latch bolt is bevel, and the fixed positioning unit is arranged at the top surface of the trapezoidal rod. The active adjust element having a sleeve slot relative to the trapezoidal rod, the active positioning unit is arranged at the top edge of the sleeve slot, the ramp element having a ramp section toward latch bolt and a cross section extended from the top end of the ramp section to the opening side, and the tail end of the cross section is overlapped to the side edge of the opening side of the gap. The fixed positioning unit is a pinion or a rack, and the active positioning units relative to the fixed positioning unit is a pinion or a rack. The plate using plate screws to combine to the electronic lock body, the two ends of the fixed adjust element are using adjust screw to combine to the bottom surface of the plate.
Whereby after installing the plate on the door frame so that the housing cavity is aligned with the latch bolt of the mechanical lock box, if the active channel is not aligned with the dead latch of the mechanical lock box, then loosen the adjusting screw to let the rack of the active adjust element and the pinion of the fixed adjust element be out of the occlusal state, and then move the active adjust element to let the active channel be aligned with the dead latch of the mechanical lock box, and then tighten the adjust screw to make the rack of the active adjust element and the pinion of the fixed adjustment element return to occlusion state.
Referring to
With the feature disclosed above after installing the plate 20 on the door frame so that the housing cavity 11 is aligned with the latch bolt of the mechanical lock box, if the active channel 43 is not aligned with the dead latch of the mechanical lock box, then loosen the adjusting screw 22 to let the rack 44 of the active adjust element 40 and the pinion 33 of the fixed adjust element 30 be out of the occlusal state, as
Although particular embodiments of the invention have been described in detail for purposes of illustration, various modifications and enhancements may be made without departing from the spirit and scope of the invention. Accordingly, the invention is not to be limited except as by the appended claims.
| Number | Date | Country | Kind |
|---|---|---|---|
| 110201288 | Feb 2021 | TW | national |
