CN222009877U - Anti-locking structure of an electronic lock - Google Patents

Abstract

The utility model discloses a back locking structure of an electronic lock, which relates to a switch lock motor of the electronic lock, comprising a lock shell, wherein a lock cylinder hole is arranged on the lock shell, and a lock cylinder is arranged in the lock shell: the switch assembly is used for switching on and off a power supply of the switch lock motor, and the buckling piece, the lock tongue assembly and the anti-locking plate are fixed relative to the lock shell. The anti-lock plate is rotatably arranged on the lock tongue mounting plate of the lock tongue assembly and is provided with an anti-lock station and an unlocking station, one side of the anti-lock plate, which is close to the lock cylinder hole, is provided with a lock cylinder poking part so that a lock cylinder arranged in the lock cylinder hole can poke the anti-lock plate to switch between the anti-lock station and the unlocking station, and the anti-lock plate is provided with a lock buckling part and a switch touching part. The electronic lock with the utility model can be locked back by a key from outside the door, and the power supply of the switch lock motor is cut off, so that the electronic lock is safe and reliable.

Description

Back locking structure of electronic lock

Technical Field

The utility model relates to the technical field of electronic locks, in particular to a back locking structure of an electronic lock.

Background

Currently, commercially available door locks can be roughly classified into two types, namely, a mechanical lock and an electronic lock. By mechanical lock is meant that the components within the overall lock body are mechanically coupled, and such locks are widely used in life. The unlocking device of the mechanical lock is generally structurally characterized by comprising an inner shifting piece, an outer shifting piece and a shifting block between the inner shifting piece and the outer shifting piece; although the mechanical lock does not need to be electrified, the mechanical lock has the defect of poor safety, and the key for unlocking the mechanical lock is mainly easy to copy, but the electronic key for unlocking the electronic lock is not easy to copy.

The existing electronic locks cannot be locked outside the door in most cases and can only be locked inside the door, when the electronic lock is installed on a door of a house, the safety is poor, and if a thief enters the house from a window or a balcony, the thief can directly come out from the door of the house.

The general structure of the unlocking device of the electronic lock is as follows: the motor drives the gear to rotate, drives the clutch device, and realizes unlocking through the clutch device.

Disclosure of utility model

In view of the above, an object of the present utility model is to provide a safe and reliable electronic lock locking structure capable of locking from outside a door.

The utility model adopts the technical proposal for solving the technical problems that:

The utility model provides a reverse locking structure of electronic lock, electronic lock have switch lock motor, reverse locking structure include the lock shell, the lock shell on be provided with the lock core hole, the lock shell in be provided with:

the switch assembly is used for switching on and off a power supply of the switch lock motor;

the locking piece is fixed relative to the lock shell;

The lock tongue assembly comprises a lock tongue and a lock tongue mounting plate positioned at one side of the lock cylinder hole;

the anti-lock plate is rotatably arranged on the lock tongue mounting plate and is provided with an anti-lock station and an unlocking station, one side of the anti-lock plate, which is close to the lock cylinder hole, is provided with a lock cylinder poking part so that a lock cylinder arranged in the lock cylinder hole can poke the anti-lock plate to switch between the anti-lock station and the unlocking station, the anti-lock plate is provided with a locking part and a switch touching part, when the anti-lock plate is positioned at the anti-lock station, the locking part is abutted with the locking part to limit the lock tongue to shrink inwards towards the lock shell, and the switch touching part touches the switch assembly to cut off the power supply of the switch lock motor, and when the anti-lock plate is positioned at the unlocking station, the locking part is separated from the locking part.

Preferably, a first elastic device is connected between the anti-lock plate and the lock tongue mounting plate, and when the anti-lock plate is positioned between the unlocking station and the anti-lock station, the first elastic device pulls the anti-lock plate to rotate to the unlocking station or the anti-lock station.

Preferably, the first elastic device is a torsion spring.

Preferably, a PCB board is disposed in the lock case, the switch assembly includes a hall element and a central control unit disposed on the PCB board, and a rotary switch rotatably disposed on the inner side of the lock case, a magnet corresponding to the hall element is disposed on the rotary switch, the hall element and the switch lock motor are connected with the central control unit, and the counter lock plate pushes the rotary switch through a switch touch part when rotating to a counter lock station, so that the magnet is close to the hall element.

Preferably, a second elastic device capable of driving the rotary switch and the magnet to be far away from the Hall element is connected between the lock shell and the rotary switch.

Preferably, the rotary switch is hinged with the lock shell through a pin shaft, an arc-shaped guide groove is formed in the lock shell, and a guide pin in sliding fit with the guide groove is further arranged on the rotary switch.

The beneficial effects of the utility model are as follows: when the electronic lock is used, the lock core is arranged in the lock core hole, the reverse locking plate is positioned at the working position of the thumb wheel of the lock core when the lock tongue is in a locking state, the electronic lock can be reversely locked through a key from the outside of a door, and meanwhile, the power supply of a switch lock motor is cut off, so that the electronic lock is safe and reliable.

Drawings

FIG. 1 is a perspective view of an electronic lock;

FIG. 2 is a front view of the main portion of the electronic lock with the counter lock plate in the unlocking position;

FIG. 3 is a front view of the main portion of the electronic lock with the strike in the strike station;

FIG. 4 is a perspective view of the main portion of the counter lock mechanism with the counter lock plate in the counter lock position;

fig. 5 is a front view of the main part of the counter lock when the counter lock plate is in the counter lock position.

Detailed Description

The technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings.

It should be noted that all directional indicators (such as up, down, left, right, front, and rear …) in the embodiments of the present utility model are merely used to explain the relative positional relationship, movement, etc. between the components in a particular posture (as shown in the drawings), and if the particular posture is changed, the directional indicator is changed accordingly. Furthermore, the description of "preferred," "less preferred," and the like, herein is for descriptive purposes only and is not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "preferred", "less preferred" may include at least one such feature, either explicitly or implicitly.

Referring to fig. 1 to 5, an embodiment of the present utility model proposes a back locking structure of an electronic lock, the electronic lock has a switch lock motor 1, the back locking structure includes a lock case 2, a lock cylinder hole 21 is provided on the lock case 2, and a lock case 2 is provided with: the switch assembly, the buckling piece 3, the lock tongue assembly and the anti-lock plate 5 are used for starting and closing the power supply of the switch lock motor 1; the locking piece 3 is fixed relative to the lock shell 2; the lock tongue assembly comprises a lock tongue 41 and a lock tongue mounting plate 42 positioned at one side of the lock cylinder hole 21; the anti-lock plate 5 is rotatably arranged on the lock tongue mounting plate 42 through a pin shaft 9 and is provided with an anti-lock station and an unlocking station, one side of the anti-lock plate 5, which is close to the lock cylinder hole 21, is provided with a lock cylinder poking part 53 so that the lock cylinder 20 arranged in the lock cylinder hole 21 can poke the anti-lock plate 5 to switch between the anti-lock station and the unlocking station, and the anti-lock plate 5 is provided with a buckling part 51 and a switch touching part 52.

When the electronic lock is used, the lock cylinder 20 is installed in the lock cylinder hole 21, and when the lock tongue 41 is in the locked state, the counter lock plate 5 is located at the working position of the thumb wheel of the lock cylinder 20. The key of the lock cylinder 20 is turned, so that the thumb wheel of the lock cylinder 20 can be turned, and the anti-lock plate 5 is further shifted to switch between the anti-lock station and the unlocking station. When the anti-lock plate 5 is switched to the anti-lock station, the locking part 51 is abutted with the locking piece 3 to limit the lock tongue 41 to shrink inwards of the lock shell 2, and meanwhile, the switch touching part 52 touches the switch assembly to cut off the power supply of the switch lock motor 1, so that the anti-lock function can be realized. When the anti-lock plate 5 is switched to the unlocking position, the locking part 51 is separated from the locking piece 3, at this time, the power supply of the switch lock motor 1 is automatically turned on or manually turned on, and the power of the key, the handle or the switch lock motor 1 of the lock cylinder 20 acts on the openable door. Compared with the prior art, the electronic lock with the utility model can be locked back by the key from outside the door, and is safe and reliable.

Further, a first elastic device 6 is connected between the anti-lock plate 5 and the lock tongue mounting plate 42, and when the anti-lock plate 5 is located between the unlocking station and the anti-lock station, the first elastic device 6 pulls the anti-lock plate 5 to rotate to the unlocking station or the anti-lock station. Preferably, the first resilient means 6 is a torsion spring. The working principle of the first elastic device 6 is similar to that of a spring of a stand bar of a bicycle, and when the anti-lock plate 5 is positioned at an unlocking station or an anti-lock station, the state of the anti-lock plate 5 can be kept by elastic force, so that the anti-lock plate 5 is kept stable in the unlocking station and the anti-lock station.

Preferably, the lock shell 2 is internally provided with a PCB 7, the switch assembly comprises a Hall element 71 and a central control unit which are arranged on the PCB 7, and a rotary switch 8 which is rotatably arranged on the inner side of the lock shell 2, the rotary switch 8 is provided with a magnet 81 corresponding to the Hall element 71, and the Hall element 71 and the switch lock motor 1 are connected with the central control unit. When the counter lock plate 5 is rotated to the counter lock position, the rotary switch 8 is pushed by the switch trigger 52 to bring the magnet 81 close to the hall element 71. At this time, the hall element 71 detects that the magnetic field is significantly stronger, and sends this signal to the central control unit, and the central control unit sends out an execution command, so that the switch lock motor 1 can be powered off.

Further, a second elastic means capable of driving the rotary switch 8 and the magnet 81 away from the hall element 71 is connected between the lock case 2 and the rotary switch 8. The second elastic device can adopt tension springs, torsion springs and the like. When the anti-lock plate 5 rotates to the unlocking station, under the action of the second elastic device, the rotary switch 8 rotates to reset so that the magnet 81 is far away from the Hall element 71, the Hall element 71 detects that the magnetic field is obviously weakened, the signal is sent to the central control unit, and the central control unit sends out an execution command so that the switch lock motor 1 can be electrified.

In some embodiments of the present utility model, the switch assembly may also adopt other structural forms, such as a normally closed contact switch, where when the counter lock plate 5 rotates to the counter lock position, the switch touching portion 52 presses the contact switch to power off the switch lock motor 1, and when the counter lock plate 5 rotates to the unlock position, the switch touching portion 52 is separated from the contact switch to power on the switch lock motor 1.

Preferably, the rotary switch 8 is hinged with the lock housing 2 through a pin shaft 9, and in order to improve the rotation stability of the rotary switch 8, an arc-shaped guide groove 22 is arranged on the lock housing 2, and a guide pin 82 which is in sliding fit with the guide groove 22 is further arranged on the rotary switch 8.

The foregoing description of the preferred embodiments of the present utility model should not be construed as limiting the scope of the utility model, but rather should be understood to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the utility model as defined by the following description and drawings or any application directly or indirectly to other relevant art(s).

Claims (4)

1. The utility model provides a back locking structure of electronic lock, electronic lock have switch lock motor (1), its characterized in that, back locking structure include lock shell (2), lock shell (2) on be provided with lock core hole (21), lock shell (2) in be provided with:

the switch assembly is used for switching on and off the power supply of the switch lock motor (1);

a locking element (3) fixed relative to the lock housing (2);

The lock tongue assembly comprises a lock tongue (41) and a lock tongue mounting plate (42) positioned at one side of the lock cylinder hole (21);

The anti-lock plate (5) is rotatably arranged on the lock tongue mounting plate (42) and is provided with an anti-lock station and an unlocking station, one side, close to the lock cylinder hole (21), of the anti-lock plate (5) is provided with a lock cylinder poking part (53) so that a lock cylinder (20) arranged in the lock cylinder hole (21) can poke the anti-lock plate (5) to switch between the anti-lock station and the unlocking station, the anti-lock plate (5) is provided with a locking part (51) and a switch touching part (52), when the anti-lock plate (5) is in the anti-lock station, the locking part (51) is abutted with the locking part (3) to limit the lock tongue (41) to shrink inwards towards the lock shell (2), and the switch touching part (52) touches the switch assembly to cut off the power supply of the switch lock motor (1), and when the anti-lock plate (5) is in the unlocking station, the locking part (51) is separated from the locking part (3).

2. The back locking structure of the electronic lock according to claim 1, wherein a PCB board (7) is disposed in the lock case (2), the switch assembly comprises a hall element (71) disposed on the PCB board (7), a central control unit, and a rotary switch (8) rotatably disposed on the inner side of the lock case (2), a magnet (81) corresponding to the hall element (71) is disposed on the rotary switch (8), the hall element (71) and the switch lock motor (1) are connected with the central control unit, and when the back locking plate (5) rotates to the back locking position, the rotary switch (8) is pushed by a switch touch part (52) so that the magnet (81) is close to the hall element (71).

3. The back lock structure of the electronic lock according to claim 2, wherein a second elastic device capable of driving the rotary switch (8) and the magnet (81) to be far away from the hall element (71) is connected between the lock shell (2) and the rotary switch (8).

4. The back locking structure of the electronic lock according to claim 2, wherein the rotary switch (8) is hinged to the lock case (2) through a pin shaft (9), an arc-shaped guide groove (22) is formed in the lock case (2), and a guide pin (82) in sliding fit with the guide groove (22) is further arranged on the rotary switch (8).