Electric mortise lock

Abstract

The utility model discloses an electric mortise lock, belongs to the technical field of locks, and aims to solve the problems that in the prior art, the working state of a spring bolt of an electric mortise lock is generally controlled only through a PCB (Printed Circuit Board), the PCB is easy to work mistakenly, and the electric mortise lock is blocked and locked. The device comprises a shell, a first cavity and a second cavity are formed in the top of the shell, the first cavity communicates with the second cavity, a spring bolt in sliding connection is arranged in the second cavity, a driving mechanism is arranged in the first cavity, a mounting block is arranged at the output end of the driving mechanism, and a connecting mechanism used for driving the spring bolt to ascend and descend is arranged on one side of the outer wall of the mounting block; when the PCB receives a locking signal from the outside or the reed switch, the driving mechanism is controlled to drive the optocoupler inductor to move to the inner side of the optocoupler, so that the optocoupler is disconnected, an unlocking signal cannot be transmitted to the PCB, the PCB is prevented from receiving the unlocking signal and the locking signal at the same time, and the phenomenon that the PCB is stuck and locked is avoided.

Description

Technical Field

[0001] The utility model relates to an electric bolt lock, belonging to the technical field of locks. Background Art

[0002] Electric bolt lock is an electronically controlled lock that drives the extension or retraction of the "lock tongue" by the on and off of the current to achieve the function of locking or opening the door. Usually, electric bolt locks are composed of two main parts: the lock body and the lock hole. The key component in the lock body is the "lock tongue", which can achieve the two states of "closing the door" and "opening the door" in cooperation with the "lock hole". That is, the lock tongue is inserted into the lock hole to close the door, and the lock tongue leaves the lock hole to open the door. It is precisely because of the retractable function of the lock tongue that it is named "electric bolt lock".

[0003] The electric bolt lock of the prior art usually controls the working state of the bolt only through the PCB board, and the PCB board is prone to malfunction, resulting in the electric bolt lock being stuck and locking, which affects the use effect of the device. Utility Model Content

[0004] The utility model aims to overcome the deficiencies in the prior art and provide an electric bolt lock to solve the problem that the electric bolt lock in the prior art usually controls the working state of the lock tongue only through a PCB board, and the PCB board is prone to erroneous operation, resulting in the electric bolt lock being stuck and locked.

[0005] In order to solve the above technical problems, the utility model is implemented by adopting the following technical solutions:

[0006] The utility model provides an electric bolt lock, comprising a shell, a first cavity and a second cavity are formed on the top of the shell, the first cavity is communicated with the second cavity, a slidably connected lock tongue is provided in the second cavity, a driving mechanism is provided in the first cavity, a mounting block is provided at the output end of the driving mechanism, and a connecting mechanism for driving the lock tongue to rise and fall is provided on one side of the outer wall of the mounting block;

[0007] The inner wall of the first cavity is detachably connected with a PCB board above the driving mechanism, the top of the PCB board is electrically connected with an optocoupler and a reed switch, the PCB board is electrically connected to the driving mechanism, and an optocoupler sensor is provided on the top of the mounting block inside the optocoupler.

[0008] Furthermore, the connecting mechanism includes a connecting rod rotatably arranged on one side of the outer wall of the mounting block, the inner wall of the first cavity is located on one side of the locking tongue and is provided with a rotatably connected connecting block, the outer wall of the locking tongue is provided with a groove close to the connecting block, the outer wall of the connecting block is integrally connected with a push block, the push block is located on the inner side of the groove, and one end of the connecting rod is rotatably connected to the connecting block.

[0009] Furthermore, the outer wall of the mounting block is elastically connected to the outer wall of the driving mechanism via a spring.

[0010] Furthermore, the driving mechanism is an electromagnetic relay.

[0011] Furthermore, a cover plate is detachably connected to the top of the shell, and a through hole matching the locking tongue is formed on the top of the cover plate at one side of the second cavity.

[0012] Furthermore, a first wiring harness is provided at the bottom of the PCB board, a second wiring harness is provided on one side of the outer wall of the driving mechanism, and a wiring harness groove for placing the first wiring harness and the second wiring harness is opened on the inner wall of the first cavity away from the lock tongue.

[0013] Furthermore, an LED lamp is provided on the top of the PCB board, and the LED lamp is electrically connected to the PCB board.

[0014] Furthermore, one end of the push block is rotatably connected to a roller.

[0015] Compared with the prior art, the utility model has the following beneficial effects:

[0016] The electric bolt lock cooperates with the optical coupler and the optical coupler sensor. When unlocking is required, the PCB board receives an unlocking signal from the outside, controls the driving mechanism to drive the optical coupler sensor to move to the outside of the optical coupler, so that the optical coupler can transmit an unlocking signal to the PCB board, thereby causing the driving mechanism to drive the lock tongue to maintain an unlocked state; when locking is required, the PCB board receives a locking signal from the outside or the reed switch, controls the driving mechanism to drive the optical coupler sensor to move to the inside of the optical coupler, so that the optical coupler is disconnected and cannot transmit the unlocking signal to the PCB board, thereby preventing the PCB board from receiving both the unlocking signal and the locking signal at the same time, preventing it from being stuck and locked, and ensuring the use effect of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic front cross-sectional view of a housing provided according to an embodiment of the utility model;

[0018] Figure 2 is a side cross-sectional schematic diagram of a PCB board provided according to an embodiment of the utility model;

[0019] Figure 3 It is a schematic diagram of the top view of the housing provided according to an embodiment of the utility model;

[0020] Figure 4 It is a schematic front cross-sectional view of a cover plate provided according to an embodiment of the utility model.

[0021] In the figure: 1. shell; 2. first cavity; 3. second cavity; 4. lock tongue; 5. mounting block; 6. PCB board; 61. optocoupler; 62. reed switch; 7. optocoupler sensor; 8. connecting rod; 9. connecting block; 10. groove; 11. push block; 12. spring; 13. electromagnetic relay; 14. cover plate; 15. wiring harness slot; 16. LED lamp. DETAILED DESCRIPTION

[0022] The utility model is further described below in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the utility model, and cannot be used to limit the protection scope of the utility model.

[0023] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present utility model, unless otherwise specified, "multiple" means two or more.

[0024] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

[0025] like Figure 1-3As shown, the utility model provides an electric bolt lock, including a shell 1, a first cavity 2 and a second cavity 3 are opened on the top of the shell 1, the first cavity 2 is communicated with the second cavity 3, a slidingly connected lock tongue 4 is arranged in the second cavity 3, a driving mechanism is arranged in the first cavity 2, a mounting block 5 is arranged at the output end of the driving mechanism, and a connecting mechanism for driving the lock tongue 4 to rise and fall is arranged on one side of the outer wall of the mounting block 5; a PCB board 6 is detachably connected to the inner wall of the first cavity 2 above the driving mechanism, an optical coupler 61 and a reed switch 62 are electrically connected to the top of the PCB board 6, the PCB board 6 is electrically connected to the driving mechanism, and an optical coupler sensor 7 is arranged on the top of the mounting block 5 inside the optical coupler 61.

[0026] Specifically, the PCB board 6 senses the status signals of the optical coupler 61 and the reed switch 62, and transmits an electrical signal to the driving mechanism to control the operation of the driving mechanism. When working, the PCB board 6 is first powered on, and the PCB board 6 can control the driving mechanism to drive the mounting block 5 to move, thereby driving the connecting mechanism to move, so as to drive the lock tongue 4 to move up and down. The second cavity 3 is used to guide the lock tongue 4. When unlocking is required, the PCB board 6 receives an unlocking signal from the outside, and then transmits the unlocking signal to the driving mechanism. The driving mechanism drives the mounting block 5 and the connecting mechanism to move, thereby driving the lock tongue 4 to descend and realize unlocking. When the mounting block 5 moves, the optical coupler sensor 7 moves with the mounting block 5, thereby moving to the outside of the optical coupler 61. At this time, the optical coupler 61 can transmit the unlocking signal to the PCB board 6 through the current signal. After receiving the unlocking signal, the PCB board 6 will continue to control the driving mechanism to work. The locking mechanism is operated so that the lock tongue 4 remains in the unlocked state; when the lock needs to be locked, the PCB board 6 receives the locking signal from the outside, and after transmitting the locking signal to the driving mechanism, the driving mechanism drives the mounting block 5 and the connecting mechanism to move, thereby driving the lock tongue 4 to rise and complete the locking work. At the same time, the mounting block 5 drives the optical coupler sensor 7 to move to the inner side of the optical coupler 61. At this time, the optical coupler 61 is disconnected, and the current signal cannot pass, and the unlocking signal cannot be transmitted to the PCB board 6, thereby avoiding the PCB board 6 from transmitting the unlocking signal to the driving mechanism when the lock needs to be locked, so as to avoid the PCB board 6 from malfunctioning and causing the electric bolt lock to be stuck and locked, thereby ensuring the use effect of the device; optionally, after closing the door, when the lock needs to be locked, the reed switch 62 will detect the magnet on the door, so that the reed switch 62 is turned on, thereby transmitting the locking signal to the PCB board 6 to complete the locking work; optionally, the driving mechanism is an electromagnetic relay 13.

[0027] The utility model cooperates with the optical coupler 61 and the optical coupler sensor 7. When unlocking is required, the PCB board 6 receives an unlocking signal from the outside, and controls the driving mechanism to drive the optical coupler sensor 7 to move to the outside of the optical coupler 61, so that the optical coupler 61 can transmit an unlocking signal to the PCB board 6, thereby allowing the driving mechanism to drive the lock tongue 4 to maintain an unlocked state; when locking is required, the PCB board 6 receives a locking signal from the outside or the reed switch 62, and controls the driving mechanism to drive the optical coupler sensor 7 to move to the inside of the optical coupler 61, so that the optical coupler 61 is disconnected and cannot transmit an unlocking signal to the PCB board 6, thereby preventing the PCB board 6 from receiving an unlocking signal and a locking signal at the same time, avoiding a stuck locking phenomenon, and ensuring the use effect of the device.

[0028] like Figure 1 As shown, an embodiment, the connecting mechanism includes a connecting rod 8 rotatably arranged on one side of the outer wall of the mounting block 5, the inner wall of the first cavity 2 is located on one side of the locking tongue 4 and is provided with a rotatably connected connecting block 9, the outer wall of the locking tongue 4 is provided with a groove 10 on the side close to the connecting block 9, the outer wall of the connecting block 9 is integrally connected with a push block 11, the push block 11 is located on the inner side of the groove 10, one end of the connecting rod 8 is rotatably connected to the connecting block 9, the outer wall of the mounting block 5 is elastically connected to the outer wall of the driving mechanism through a spring 12; one end of the push block 11 is rotatably connected to a roller.

[0029] Specifically, when the driving mechanism drives the mounting block 5 to move, the mounting block 5 drives the connecting block 9 to swing through the connecting rod 8, and the push block 11 moves with the connecting block 9. At this time, the push block 11 moves inside the groove 10, thereby driving the lock tongue 4 to move up and down. When the driving mechanism stops working, the spring 12 drives the mounting block 5 to return to its original position, thereby driving the lock tongue 4 to return to its original position; optionally, the push block 11 contacts the inner wall of the groove 10 through a roller. When the push block 11 moves inside the groove 10, the hard contact between the two is alleviated by the roller, thereby ensuring the stability of the lock tongue 4 when it is lifted and lowered, and at the same time reducing the friction loss when the two are in contact, thereby ensuring the service life of the device.

[0030] like Figure 4 As shown, in one embodiment, a cover plate 14 is detachably connected to the top of the shell 1, and a through hole matching the lock tongue 4 is provided on the top of the cover plate 14 located on one side of the second cavity 3, and the cover plate 14 is used to protect components such as the PCB board 6 and the drive mechanism.

[0031] like Figure 1As shown, in one embodiment, a first wiring harness is provided at the bottom of the PCB board 6, a second wiring harness is provided on one side of the outer wall of the driving mechanism, and a wiring harness slot 15 for placing the first wiring harness and the second wiring harness is provided on the inner wall of the first cavity 2 away from the lock tongue 4. External unlocking signals and locking signals can be transmitted to the PCB board 6 through the first wiring harness, and the second wiring harness can be used to power the driving mechanism. The wiring harness slot 15 is used to place the first wiring harness and the second wiring harness, and plays a guiding role for both. An LED light 16 is provided on the top of the PCB board 6, and the LED light 16 is electrically connected to the PCB board 6 to play a certain warning role; optionally, an opening is provided on the top of the cover plate 14 on one side of the LED light 16.

[0032] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. An electric bolt lock, characterized in that: The invention comprises a shell (1), wherein a first cavity (2) and a second cavity (3) are formed on the top of the shell (1), wherein the first cavity (2) is communicated with the second cavity (3), wherein a slidably connected locking tongue (4) is provided in the second cavity (3), wherein a driving mechanism is provided in the first cavity (2), wherein an installation block (5) is provided at the output end of the driving mechanism, and a connection mechanism for driving the locking tongue (4) to be raised or lowered is provided on one side of an outer wall of the installation block (5); A PCB board (6) is detachably connected to the inner wall of the first cavity (2) above the driving mechanism, and an optical coupler (61) and a reed switch (62) are electrically connected to the top of the PCB board (6). The PCB board (6) is electrically connected to the driving mechanism, and an optical coupler sensor (7) is provided on the top of the mounting block (5) on the inner side of the optical coupler (61).

2. An electric bolt lock according to claim 1, characterized in that: The connecting mechanism comprises a connecting rod (8) rotatably arranged on one side of the outer wall of the mounting block (5); an inner wall of the first cavity (2) is provided with a rotatably connected connecting block (9) located on one side of the locking tongue (4); a groove (10) is provided on the outer wall of the locking tongue (4) close to the connecting block (9); a push block (11) is integrally connected to the outer wall of the connecting block (9); the push block (11) is located inside the groove (10); and one end of the connecting rod (8) is rotatably connected to the connecting block (9).

3. An electric bolt lock according to claim 2, characterized in that: The outer wall of the mounting block (5) is elastically connected to the outer wall of the driving mechanism via a spring (12).

4. The electric bolt lock according to claim 1, characterized in that: The driving mechanism is an electromagnetic relay (13).

5. The electric bolt lock according to claim 1, characterized in that: A cover plate (14) is detachably connected to the top of the shell (1), and a through hole matching the locking tongue (4) is provided on the top of the cover plate (14) located on one side of the second cavity (3).

6. The electric bolt lock according to claim 1, characterized in that: A first wiring harness is provided at the bottom of the PCB board (6), a second wiring harness is provided on one side of the outer wall of the driving mechanism, and a wiring harness groove (15) for accommodating the first wiring harness and the second wiring harness is provided on the inner wall of the first cavity (2) away from the locking tongue (4).

7. The electric bolt lock according to claim 1, characterized in that: An LED lamp (16) is provided on the top of the PCB board (6), and the LED lamp (16) is electrically connected to the PCB board (6).

8. An electric bolt lock according to claim 2, characterized in that: One end of the push block (11) is rotatably connected to a roller.

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