CN216617171U

CN216617171U - Emergency key switch

Info

Publication number: CN216617171U
Application number: CN202122778853.6U
Authority: CN
Inventors: 岑福裕
Original assignee: Shenzhen Yli Electric Locking Co ltd
Current assignee: Shenzhen Yli Electric Locking Co ltd
Priority date: 2021-11-12
Filing date: 2021-11-12
Publication date: 2022-05-27
Anticipated expiration: 2031-11-12

Abstract

The utility model discloses an emergency key switch which comprises a shell, wherein a lock liner, a linkage frame, a microswitch and a reset elastic sheet are arranged in the shell; the linkage frame is sleeved on the lock liner and can rotate left and right along with the lock liner; when the lock core rotates along with the key, the linkage frame touches the reset elastic sheet and the microswitch fixed in the shell; the reset spring plate is used for automatically resetting the lock cylinder, and the micro switch is used for triggering a preset control circuit connected with the micro switch. The emergency key switch provided by the utility model can be installed outdoors, and the emergency unlocking function is realized by triggering the corresponding control circuit through the mechanical key, so that the emergency key switch has the characteristics of simplicity, safety and reliability.

Description

Emergency key switch

Technical Field

The utility model relates to an entrance guard lock device, in particular to an emergency key switch.

Background

Along with the in-depth development of the internet of things and the informatization technology, the entrance guard lock is more intelligent, and the biological identification technologies such as human faces and fingerprints and a novel entrance guard system with remote control capability appear. However, although the related technologies of the access control lock are more and more advanced, in an emergency, the access control device fails to be normally used, for example, a fire disaster occurs in a room, a house owner has an accident, and the like, and an outdoor person cannot unlock the access control lock through a normal flow of the access control system; therefore, the unlocking by means of the mechanical key is still a simple and reliable standby scheme.

SUMMERY OF THE UTILITY MODEL

The utility model provides an emergency key switch which can be installed outdoors, realizes an emergency unlocking function by triggering a corresponding control circuit through a mechanical key, and has the characteristics of simplicity, safety and reliability.

An emergency key switch comprises a shell, wherein a lock liner, a linkage frame, a microswitch and a reset elastic sheet are arranged in the shell; the linkage frame is sleeved on the lock liner and can rotate left and right along with the lock liner; when the lock core rotates along with the key, the linkage frame touches the reset spring plate and the micro switch fixed in the shell; the reset spring plate is used for automatically resetting the lock cylinder, and the micro switch is used for triggering a preset control circuit connected with the micro switch.

Optionally, the shell includes a bottom shell and a panel assembly, and the panel assembly is provided with a keyhole slot for accommodating the lock cylinder;

optionally, a limiting column for fixing the reset elastic sheet and a positioning column for fixing the micro switch are arranged on the inner side of the panel component;

optionally, the linkage frame is provided with at least one first protrusion contacting with the reset spring plate and at least one second protrusion contacting with the microswitch;

optionally, the first protrusions and the second protrusions are arranged in a staggered manner;

optionally, a safety buckle is arranged on the inner side of the bottom shell, and an extension end stop of the safety buckle is arranged in front of the second protrusion;

optionally, a waterproof ring is padded between the bottom shell and the panel assembly;

optionally, the number of the micro switches is two, and the micro switches are symmetrically arranged in the shell in the left-right direction; the first bulges are two and are bilaterally symmetrical, and the second bulges are two and are bilaterally symmetrical;

optionally, the reset elastic sheet is a steel sheet;

optionally, the sides and top of the housing are provided with eaves.

The utility model provides an emergency key switch.A lock liner, a linkage frame, a micro switch and a reset spring sheet are arranged in a shell of the emergency key switch, wherein the linkage frame is sleeved on the lock liner and can rotate left and right along with the lock liner; meanwhile, the linkage frame is contacted with the reset elastic sheet in the rotating process, and automatic reset is realized by the reset elastic sheet.

Compared with the prior art, the emergency key switch is simple and safe in structure, can be installed outdoors, and is a reliable guarantee for the current high-tech access control system under emergency conditions.

Drawings

FIG. 1 is a perspective view of an emergency key switch in an embodiment of the present invention;

FIG. 2 is an exploded view of an embodiment of the emergency key switch of the present invention;

FIG. 3 is another exploded view of the emergency key switch according to the embodiment of the present invention;

FIG. 4 is a schematic view (front) of the embodiment of the present invention in use when a key is inserted;

FIG. 5 is a schematic view (in section from the back) of an embodiment of the utility model in use with a key inserted;

FIG. 6 is a schematic view (front) of the key used when turning the key according to an embodiment of the present invention;

FIG. 7 is a schematic view (in section from the back) of an embodiment of the present invention in use with a key turned;

the reference numbers in the drawings of the specification are as follows:

1. a housing; 11. a panel assembly; 110. a keyhole slot; 111. a limiting column; 112. a positioning column; 12. a bottom case; 2. a lock liner; 3. a linkage frame; 31. a first protrusion; 32. a second protrusion; 4. a microswitch; 5. resetting the elastic sheet; 6. a key; 7. a safety buckle; 71. an extension end; 8. a waterproof ring; 9. a brim edge; 10. and (4) screws.

Detailed Description

In order to make the technical problems, technical solutions and advantageous effects to be solved by the present invention more clearly apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the utility model.

In an embodiment, an emergency key switch is provided, as shown in fig. 1 to 7, including a housing 1, a lock cylinder 2, a linkage frame 3, a micro switch 4 and a reset spring 5 are provided in the housing; the linkage frame is sleeved on the lock liner and can rotate left and right along with the lock liner; when the lock core rotates along with the key, the linkage frame touches the reset spring plate and the micro switch fixed in the shell; the reset spring piece is preferably a steel sheet and is used for automatically resetting the lock cylinder, and the micro switch is used for triggering a preset control circuit connected with the micro switch.

Specifically, the housing includes a bottom case 12 and a panel assembly 11, which may be fixed together by screws; and eaves 9 are arranged at the side edges and the top of the shell and used for shielding rainwater.

The panel component is provided with a keyhole groove 110 for accommodating the lock cylinder, and the shape of the keyhole groove is matched with the appearance of the lock cylinder; the inner side of the panel component is provided with a limit column 111 for fixing the reset elastic sheet and a positioning column 112 for fixing the micro switch.

The linkage frame is sleeved on the lock liner, and is provided with at least one first bulge 31 which is contacted with the reset spring plate and at least one second bulge 32 which is contacted with the microswitch; namely, the first protrusion toggles the reset elastic sheet along with the rotation of the lock cylinder, the second protrusion toggles the micro switch, and meanwhile, the first protrusion can rebound the lock cylinder by means of the elastic force of the reset elastic sheet.

Preferably, the number of the micro switches is two, and the micro switches are symmetrically arranged in the shell in the left-right direction; first arch and second arch are two, and equal bilateral symmetry, promptly, form dibit control function, can all trigger micro-gap switch's closure through corotation or reversal key, accomplish the control to the circuit.

Furthermore, the first bulges and the second bulges are arranged in a staggered mode, so that the internal space of the shell is saved.

Furthermore, a safety catch 7 is provided inside the bottom shell, and an extended end 71 of the safety catch is arranged in front of the second protrusion. The structure is designed in a defensive way, and the safety buckle is blocked in front of the second bulge of the lock cylinder linkage frame in a conventional state, so that the emergency key switch can be prevented from being detached without a key; namely, the lock liner linkage frame must be turned by a key first when the lock liner linkage frame needs to be detached, the second protrusion on the linkage frame is staggered with the extension end of the safety buckle, and the small screwdriver is pried to detach from the bottom, so that the safety is guaranteed.

Preferably, a waterproof ring 8 is padded between the bottom shell and the panel assembly, i.e. a rubber waterproof ring is arranged around the panel assembly to prevent water from penetrating.

The assembly process of the emergency key switch is as follows:

1) when in assembly, the return spring steel sheet is pressed into the corresponding limiting column in the panel component to be clamped, and then the panel component is locked by using an M2.5 x 10 cross round head screw and a phi 3 flat gasket;

2) two micro switches are respectively arranged in the panel component to clamp the positioning columns, and then the panel component is fixed by M2.5 x 10 cross round head screws; sleeving a waterproof rubber ring in a groove in the middle of the panel component;

3) sleeving the linkage frame on the lock core, embedding the convex slot position on the linkage frame into the rotating head movable slot of the lock core for limiting, then integrally installing the lock core and the lock core linkage frame into the lock hole slot, and locking the lock core and the lock core linkage frame with the panel component by using an M5X 10 cross round head screw;

4) the key is inserted into the lock container, the key is rotated at the maximum forward or reverse angle to enable the linkage frame to be completely pressed to the micro switch and keep the state, then the clamping position at the top of the panel assembly is clamped into the clamping position at the top of the bottom shell, then the bottom of the panel assembly is pressed to enable the panel assembly to be flush with the lower surface of the bottom shell, finally the rotated key is loosened, and then the lock is locked by the M4-10 cross round head screw 10.

The emergency key switch provided by the embodiment has the advantages of double-position control and anti-disassembly design, simple structure, safety and reliability.

The above is an explanation of the emergency key switch of the present invention to help understanding the present invention; the present invention is not limited to the above embodiments, and any changes, modifications, substitutions, combinations, and simplifications which do not depart from the spirit of the present invention are intended to be equivalent replacements within the scope of the present invention.

Claims

1. An emergency key switch is characterized by comprising a shell, wherein a lock liner, a linkage frame, a microswitch and a reset elastic sheet are arranged in the shell; the linkage frame is sleeved on the lock core and can rotate left and right along with the lock core; when the lock core rotates along with a key, the linkage frame triggers a reset elastic sheet and a microswitch which are fixed in the shell; the reset spring plate is used for automatically resetting the lock cylinder, and the microswitch is used for triggering a preset control circuit connected with the microswitch.

2. The emergency key switch of claim 1, wherein the housing comprises a bottom shell and a panel assembly, the panel assembly having a keyhole slot for receiving the lock cylinder.

3. The emergency key switch of claim 2, wherein a position-limiting post for fixing the reset spring and a positioning post for fixing the micro switch are disposed on an inner side of the panel assembly.

4. The emergency key switch of claim 2, wherein the linkage frame has at least one first protrusion contacting the reset spring and at least one second protrusion contacting the microswitch.

5. The emergency key switch of claim 4, wherein the first and second protrusions are staggered.

6. The emergency key switch of claim 4, wherein the inner side of the bottom case is provided with a safety catch, and an extension end stop of the safety catch is in front of the second protrusion.

7. The emergency key switch of claim 2, wherein a waterproof ring is padded between the bottom case and the panel assembly.

8. The emergency key switch of claim 4, wherein the micro switches are two in number and are installed in the housing in bilateral symmetry; the first bulges are two and are bilaterally symmetrical, and the second bulges are two and are bilaterally symmetrical.

9. The emergency key switch of any one of claims 1 to 8, wherein the reset spring is a steel sheet.

10. The emergency key switch of any one of claims 1 to 8, wherein the side edges and the top of the housing are provided with eaves.