CN220226520U - Lock body with reminding function - Google Patents

Abstract

The utility model discloses a lock body with a reminding function, wherein the lock body is provided with a lock hole, the tail end of the lock hole is opened and extends to the inlet of a guide channel, a pressing plate is arranged in the guide channel, the back surface of the pressing plate is connected with the bottom of the guide channel through a spring, two front contact pieces which are electrically connected are arranged on the back surface of the pressing plate, two rear contact pieces which correspond to the two front contact pieces in position are arranged at the bottom of the guide channel, when a key is not fully inserted into the lock hole, the front contact pieces are not contacted with the rear contact pieces, when the key is fully inserted into the lock hole, the front contact pieces are contacted with the rear contact pieces, and the two rear contact pieces are connected with a delay loudspeaker through wires. The key forgetting-pulling reminding scheme has the advantages of simple structure, stable and reliable operation, enhanced durability of the lock body through design, low overall allocation cost and realization of a simple and easy key forgetting-pulling reminding scheme.

Description

Lock body with reminding function

Technical Field

The present utility model relates to the field of mechanical locks.

Background

People sometimes forget to pull out the key when using the key to open the door, so that the key is still left on the lock hole and is discovered after a long time, thereby causing potential safety hazard and inconvenience. Similar reminding devices are also available.

For example, publication number CN202150174U, publication day 2012, month 2 and 22, and patent name "intelligent forget to pull out key and forget to close the door reminding device" disclose an intelligent forget to pull out key and forget to close the door reminding device, which comprises a detector, an intelligent controller and a key transponder. The detector is arranged on or near a door; the intelligent controller consists of a first receiving circuit, an alarm circuit, an automatic dialing circuit, a keyboard input circuit, a first transmitting circuit and a first intelligent control circuit which are respectively connected with the first receiving circuit, the alarm circuit, the automatic dialing circuit, the keyboard input circuit and the first transmitting circuit, and is arranged on or near a door; the key transponder consists of a second receiving circuit, a second transmitting circuit and a second intelligent control circuit which are respectively connected with the second receiving circuit and the second transmitting circuit, and is assembled with the key; the detector is connected with a first intelligent control circuit

Similar public devices are mostly reminded through an electric control system, the whole circuit structure is complex, and the equipment cost is necessarily high, so that popularization and promotion are difficult, and a key forgetting to pull reminding scheme with simple structure and reliable work is needed to be designed.

Disclosure of Invention

The utility model aims to solve the technical problem of realizing a simple and feasible key forgetting to pull out reminding lock body structure.

In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows: the utility model provides a lock body with remind function, lock body is equipped with the lockhole, the terminal opening of lockhole and extend to the entrance of direction passageway, be equipped with the clamp plate in the direction passageway, the back of clamp plate is connected with the bottom of direction passageway through the spring, the back of clamp plate is equipped with the preceding contact piece of two electricity connections, the direction passageway bottom is equipped with two back contact pieces that correspond with two preceding contact piece positions, when the key did not insert the lockhole completely, preceding contact piece and back contact piece do not contact, when the key inserted the lockhole completely, preceding contact piece and back contact piece contact, two the back contact piece passes through the wire and connects the delay speaker.

And each rear contact piece is provided with a metal spring piece extending forward in the direction of the front contact piece.

The two front contact pieces are communicated through a pressing plate made of metal materials or are connected and communicated through a wire.

The delay loudspeaker consists of a normally open delay switch, a battery and a loudspeaker which are connected in series, and two ends of the delay switch are respectively connected with two rear contact pieces.

The time delay switch is a push contact type normally open time delay switch.

The battery is placed in the battery compartment, the battery compartment comprises a shell and a separable cover body, and the battery compartment is fixed on the inner side of the door where the lock body is located.

The front surface of the pressing plate is covered with a wear-resistant coating.

The guide channel is of a polygonal structure, and the pressing plate is of a polygonal structure matched with the guide channel in shape.

The lock hole limits the length of the key extending into the lock hole through the handle part of the key.

The key forgetting-pulling reminding scheme has the advantages of simple structure, stable and reliable operation, enhanced durability of the lock body through design, low overall allocation cost and realization of a simple and easy key forgetting-pulling reminding scheme.

Drawings

The contents of each drawing in the specification of the present utility model are briefly described as follows:

FIG. 1 is a schematic view of a lock body structure when a key is inserted;

FIG. 2 is a schematic view of a lock body structure without a key inserted;

FIG. 3 is a schematic diagram of a delay speaker circuit;

the labels in the above figures are: 1. a key; 2. a lock body; 3. a lock hole; 4. a delay speaker; 5. a pressing plate; 6. a guide channel; 7. a front contact piece; 8. a rear contact piece; 9. a metal spring plate; 10. a delay switch; 11. a battery; 12. a speaker; 13. and (3) a spring.

Detailed Description

The following detailed description of the embodiments of the utility model, such as the shape and construction of the components, the mutual positions and connection relationships between the components, the roles and working principles of the components, the manufacturing process and the operating and using method, etc., is provided to assist those skilled in the art in a more complete, accurate and thorough understanding of the inventive concept and technical solution of the present utility model.

The lock body with reminding function is based on the improvement of the existing mechanical lock, the tail end of the lock hole 3 of the existing lock body 2 is opened, so that the end part of the key 1 can extend out of the lock hole 3, the tail end of the lock hole 3 faces the inlet of the guide channel 6, the size of the guide channel 6 is larger than that of the lock hole 3, when the key 1 is inserted into the lock hole 3 and extends into the unlocking position, the front end of the key 1 can extend into the guide channel 6, the pressure plate 5 is arranged in the guide channel 6, the back surface of the pressure plate 5 is connected with the bottom of the guide channel 6 through the spring 13, the spring 13 supports the pressure plate 5 to contact the lock hole 3, when the front end of the key 1 extends into the guide channel 6, the pressure plate 5 is pressed to displace towards the inside of the guide channel 6, and after the key 1 is pulled out, the spring 13 supports the pressure plate 5 to contact the lock hole 3 again, so that the return of the pressure plate 5 is realized. However, in this case, the early adjustment is required, so that the resilience of the spring 13 is insufficient to withdraw the key 1 from the lock hole 3, and the alarm is not given when the key 1 is not withdrawn because the key 1 is withdrawn from the lock hole 3 by the resilience.

The back of the pressing plate 5 is provided with two electrically connected front contact pieces 7, the bottom of the guide channel 6 is provided with two rear contact pieces 8 corresponding to the positions of the two front contact pieces 7, the two front contact pieces 7 are conducted through the pressing plate 5 made of metal materials or are connected and conducted through wires, and the two rear contact pieces 8 are connected with the delay loudspeaker 4 through wires. When the pressing plate 5 contacts the lock hole 3, the matched front contact piece 7 and the rear contact piece 8 are separated, when the key 1 is inserted into the lock hole 3 and presses the pressing plate 5 inwards, the matched front contact piece 7 and the rear contact piece 8 or the contact realizing passage, the guide channel 6 is preferably of a polygonal structure, for example, a square structure is adopted, the pressing plate 5 is of a polygonal structure matched with the guide channel 6 in shape, the pressing plate 5 is in clearance fit with the guide channel 6, the polygonal structure can prevent the guide pressing plate 5 from rotating in the guide channel 6, the positions of the front contact piece 7 and the rear contact piece 8 are always kept consistent, and accordingly dislocation of the matched front contact piece 7 and the rear contact piece 8 is avoided.

The front contact piece 7 and the rear contact piece 8 can be contacted, the size of the key 1 is required to be matched, the length of the key 1 extending into the lock hole 3 is limited by the handle part of the key 1, when the key 1 is inserted into the lock hole 3 and can be completely rotated and unlocked, the handle of the key 1 contacts the lock body 2, which is defined herein as that the key 1 is completely inserted into the lock hole 3, when the key 1 is not completely inserted into the lock hole 3, the pressing plate 5 is not extruded, or the extrusion degree is insufficient to enable the front contact piece 7 and the rear contact piece 8 to be contacted, the delay loudspeaker 4 is in an open circuit state, when the key 1 is completely inserted into the lock hole 3, the front end of the key 1 contacts and presses the pressing plate 5, the pressing plate 5 is forced to move inwards along the guide channel 6, and the front contact piece 7 and the rear contact piece 8 are contacted, so that the delay loudspeaker 4 is in a channel state.

In order to keep reliable electrical connection between the front contact piece 7 and the contact piece each time, each rear contact piece 8 is provided with a metal spring piece 9 extending in the direction of the front contact piece 7, so that when a key 1 is inserted into a lock hole 3, 80% of the effect of completely inserting the key 1 into the lock hole 3 can be achieved, the front contact piece 7 and the rear contact piece 8 are electrically connected, abrasion of the front contact piece 7 and the rear contact piece 8 caused by long-term use is avoided, the front contact piece 7 and the rear contact piece 8 cannot be electrically connected with each other when the key 1 is completely inserted into the lock hole 3, the contact effect can be achieved when the key 1 is inserted into the lock hole 3 by 80% of the metal spring pieces 9, enough abrasion allowance is provided for conventional abrasion, the service life of the device is improved, but the device is required to be adjusted in advance, the resilience force of the spring 13 and the two metal spring pieces 9 is insufficient to enable the key 1 to be withdrawn from the lock hole 3, so that the key 1 is prevented from automatically withdrawing from the lock hole 3 due to resilience, and an alarm cannot be given when the key 1 is not pulled out. In addition, the front surface of the pressing plate 5 is coated with a wear-resistant coating, and because the key 1 contacts the pressing plate 5 and rotates each time, the key can be worn, and in order to avoid the excessive wear of the pressing plate 5, the wear-resistant coating is coated with a metal material with higher hardness than the key 1.

As shown in fig. 3, the delay speaker 4 is composed of a normally open delay switch 10, a battery 11 and a speaker 12 connected in series, two ends of the delay switch 10 are respectively connected with two rear contact pieces 8, the delay switch 10 is a push contact normally open delay switch 10, the time of an extension path is designed according to the requirement, when the push exceeds a set time path, and when the push is not pushed, the delay speaker always maintains an open state. The battery 11 is placed in battery 11 storehouse, battery 11 storehouse includes casing and separable lid, and battery 11 storehouse is fixed in the door inboard of the door that lock body 2 place, also makes things convenient for the user to change battery 11.

The scheme is simple and easy to implement, and low in cost, and under general conditions, a user can finish the actions of opening the door and pulling out the key 1 in the delay time, so that the loudspeaker 12 can not give out warning noise when opening the door normally every time, only when the delay time is full due to forgetting to pull out the key 1, the warning noise can be given out, the control can be performed by adjusting the delay time of the delay switch 10, for example, the delay time of a delay passage of the delay switch 10 is 5s, the unlocking is enough for the user, the user is not far away even if the user forgets to pull out the key 15 seconds, the user is enough to remind the user to take down the key 1, the delay switch 10 is changed into the off state again after the key 1 is taken down, and the loudspeaker 12 can not give out warning noise any more, so that the effects of warning as required, saving electric quantity and avoiding noise can be achieved.

While the utility model has been described above with reference to the accompanying drawings, it will be apparent that the utility model is not limited to the above embodiments, but is capable of being modified or applied directly to other applications without modification, as long as various insubstantial modifications of the method concept and technical solution of the utility model are adopted, all within the scope of the utility model.

Claims (9)

1. Lock body with remind function, lock body are equipped with lockhole, its characterized in that: the key is characterized in that the tail end of the lock hole is opened and extends to the entrance of the guide channel, a pressing plate is arranged in the guide channel, the back surface of the pressing plate is connected with the bottom of the guide channel through a spring, two front contact pieces which are electrically connected are arranged on the back surface of the pressing plate, two rear contact pieces which correspond to the two front contact pieces are arranged at the bottom of the guide channel, when the key is not completely inserted into the lock hole, the front contact pieces are not contacted with the rear contact pieces, when the key is completely inserted into the lock hole, the front contact pieces are contacted with the rear contact pieces, and the two rear contact pieces are connected with the delay loudspeaker through wires.

2. The lock body with a reminding function according to claim 1, wherein: and each rear contact piece is provided with a metal spring piece extending forward in the direction of the front contact piece.

3. The lock body with a reminding function according to claim 2, wherein: the two front contact pieces are communicated through a pressing plate made of metal materials or are connected and communicated through a wire.

4. A lock body with a reminder function according to claim 1, 2 or 3, characterized in that: the delay loudspeaker consists of a normally open delay switch, a battery and a loudspeaker which are connected in series, and two ends of the delay switch are respectively connected with two rear contact pieces.

5. The lock with reminder function according to claim 4, wherein: the time delay switch is a push contact type normally open time delay switch.

6. The lock with reminder function according to claim 5, wherein: the battery is placed in the battery compartment, the battery compartment comprises a shell and a separable cover body, and the battery compartment is fixed on the inner side of the door where the lock body is located.

7. The lock body with a reminding function according to claim 1 or 6, wherein: the front surface of the pressing plate is covered with a wear-resistant coating.

8. The lock with reminder function according to claim 7, wherein: the guide channel is of a polygonal structure, and the pressing plate is of a polygonal structure matched with the guide channel in shape.

9. The lock with reminder function according to claim 8, wherein: the lock hole limits the length of the key extending into the lock hole through the handle part of the key.