Double-holding electronic lock

Abstract

An electromagnet assembly comprises a coil A, a fixing frame, a coil B, a connecting rod and an iron core, the coil A and the coil B are fixed in a bottom shell in a left-right mode, the fixing frame is fixed between the coil A and the coil B, the iron core is connected between the coil A and the coil B in a sliding mode, and the connecting rod is fixed to the center of the iron core in a penetrating mode. When the electromagnet assembly is powered on to work, the coil A drives the iron core and the push block to synchronously move leftwards, the signal switch is triggered, the push rod locks the unlocking button at the same time, the unlocking button extrudes the mechanical switch upwards, the unlocking button cannot be pressed downwards, meanwhile, a long closing signal of the mechanical switch is kept, and locking is achieved; when the signal switch is turned off, the iron core and the push rod are driven to move rightwards, so that the unlocking button automatically moves downwards to achieve automatic unlocking while the signal switch is turned off, stable two-way work of locking and unlocking is achieved, and use is convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of electronic locks, in particular to a double-hold electronic lock. Background Art

[0002] There are more and more new energy vehicles. In order to ensure the safety of people, vehicles and charging piles during charging, the charging gun needs to have certain protection functions. When the charging gun is plugged in, an electronic lock is needed to prevent the charging gun from being accidentally disconnected.

[0003] Currently, when locking the charging gun, most electronic locks require pressing a switch to start the driving device of the locking mechanism to move the lock component to lock it. When unlocking, most electronic locks require manual operation to close the switch to unlock it, which is more troublesome. Utility Model Content

[0004] The purpose of the present invention is to overcome the defects of the prior art and provide a double-hold electronic lock to solve the problems raised in the above background technology.

[0005] A double-hold electronic lock comprises a bottom shell and a face shell, the face shell being fixed to the upper end of the bottom shell, a joint being installed at the lower end of the bottom shell, an electromagnet assembly being fixedly installed on the right side inside the bottom shell, the electromagnet assembly comprising a coil A, a fixing frame, a coil B, a connecting rod and an iron core, the coil A and coil B being fixed on the left and right sides inside the bottom shell, the fixing frame being fixed between coil A and coil B, the iron core being slidably connected between coil A and coil B, the connecting rod being fixed through the center of the iron core, a push block assembly being fixedly connected to the left part of the connecting rod, an unlock button being elastically connected to the left side inside the bottom shell, the upper part of the push block assembly being in contact with the bottom of the unlock button, a mechanical switch being fixed at the rear end inside the bottom shell, the rear end of the unlock button being in contact with the lower end of the mechanical switch, a signal switch being fixed at the rear end inside the bottom shell, the signal switch being located on the right side of the mechanical switch, and the rear end of the push block assembly being in contact with the lower end of the signal switch.

[0006] Furthermore, the inner diameter of the fixing frame is larger than the outer diameter of the iron core.

[0007] Furthermore, the push block assembly includes a push block and a push rod, the push block is fixedly connected to the left portion of the connecting rod, and the push rod is fixedly connected to the lower side of the left end of the push block.

[0008] Furthermore, a guide rail is fixed at the bottom end of the bottom shell and directly below the unlocking button, and the left portion of the push rod extends into the guide rail and is slidably connected to the guide rail.

[0009] Furthermore, the top section and right section of the push block are both "convex" shaped structures, and the push block is provided with convex edges below the front and rear ends and the left end. The convex edge at the left end contacts the bottom of the unlock button, and the convex edge at the rear end contacts the metal sheet at the bottom of the signal switch.

[0010] Furthermore, a return spring is connected between the lower end of the unlocking button and the bottom end of the bottom shell.

[0011] Furthermore, a pressure plate is fixed to the lower portion of the rear end of the unlocking button, and the pressure plate contacts the button at the lower portion of the mechanical switch.

[0012] The beneficial effects of the present invention are as follows: by connecting the connector to the locking mechanism to transmit a control signal to the drive device, when the unlocking button is locked, the electromagnet assembly is energized and working, coil A drives the iron core and the push block to move synchronously to the left, triggering the signal switch while allowing the push rod to (lock) the unlocking button at the same time, and at the same time the unlocking button presses the mechanical switch upwards, so that the unlocking button cannot be pressed down, while maintaining the mechanical switch long-closed signal to achieve locking, and when coil B is energized, the drive core and the push rod move to the right, so that when the signal switch is turned off, the unlocking button automatically moves down to achieve automatic unlocking, thereby achieving stable "two-way" operation of locking and unlocking, which is convenient to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is an overall schematic diagram of the utility model;

[0014] Figure 2 This is a schematic diagram of the present invention after the front cover is removed;

[0015] Figure 3 This is a schematic diagram of the present invention after the bottom shell and the top shell are removed;

[0016] Figure 4 This is a schematic diagram of the explosion of the electromagnet assembly of the utility model.

[0017] In the figure: 1- bottom shell, 2- top shell, 3- connector, 4- unlock button, 5- coil A, 6- fixing frame, 7- coil B, 8- connecting rod, 9- push block, 10- push rod, 11- return spring, 12- signal switch, 13- mechanical switch, 14- guide rail, 15- flange, 16- pressure plate, 17- iron core. DETAILED DESCRIPTION

[0018] See also Figure 1-Figure 4, double-hold electronic lock, including a bottom shell 1 and a face shell 2, the face shell 2 is fixed to the upper end of the bottom shell 1, the lower end of the bottom shell 1 is installed with a connector 3, the right side of the bottom shell 1 is fixed with an electromagnet assembly, the electromagnet assembly includes a coil A5, a fixing frame 6, a coil B7, a connecting rod 8 and an iron core 17, the coil A5 and the coil B7 are fixed to the left and right inside the bottom shell 1, the fixing frame 6 is fixed between the coil A5 and the coil B7, the iron core 17 is slidably connected between the coil A5 and the coil B7, the inner diameter of the fixing frame 6 is larger than the outer diameter of the iron core 17, and the connecting rod 8 is fixed through the center of the iron core 17. By connecting the joint 3 to the locking mechanism, a control signal is transmitted to the drive device, and the coils A5 and B7 are externally connected to the power supply. In this way, when coil A5 is energized and coil B7 is de-energized, coil A drives the iron core 17 to move to the left inside coil A5, and when coil A5 is de-energized and coil B7 is energized, coil B7 drives the iron core 17 to move to the right inside coil B7;

[0019] The left part of the connecting rod 8 is fixedly connected to a push block assembly, which includes a push block 9 and a push rod 10. The push block 9 is fixedly connected to the left part of the connecting rod 8, and the push rod 10 is fixedly connected to the lower side of the left end of the push block 9. A guide rail 14 is fixed to the bottom end of the bottom shell 1 and is located directly below the unlocking button 4. The left part of the push rod 10 extends into the inside of the guide rail 14 and is slidably connected to the guide rail 14. When the iron core 17 moves to the left or right, it will drive the push block 9 and the push rod 10 to move together. In this way, the push rod 10 slides along the guide rail 14, which can play a guiding role in the push block 9.

[0020] The left side of the bottom shell 1 is elastically connected to an unlock button 4, and a return spring 11 is connected between the lower end of the unlock button 4 and the bottom end of the bottom shell 1. The upper part of the push block assembly contacts the bottom of the unlock button 4, and a mechanical switch 13 is fixed to the rear end of the bottom shell 1. The rear end of the unlock button 4 contacts the lower end of the mechanical switch 13, and a pressure plate 16 is fixed to the lower part of the rear end of the unlock button 4. The pressure plate 16 contacts the button at the bottom of the mechanical switch 13. A signal switch 12 is fixed to the rear end of the bottom shell 1. The signal switch 12 is located on the right side of the mechanical switch 13. The rear end of the push block assembly contacts the signal switch 13. The lower end of the signal switch 12 is in contact with the push block 9, and the top section and right section of the push block 9 are both "convex" shaped structures. The push block 9 is provided with convex edges 15 at the lower front and rear ends and the left end. The convex edge 15 at the left end is in contact with the bottom of the unlock button 4, and the convex edge 15 at the rear end is in contact with the metal sheet at the bottom of the signal switch 12. The mechanical switch 13 is connected to the drive device through the PCB, which is used to control the drive device to drive the mechanical lock rod to retract, and the signal switch 12 is connected to the drive device and the mechanical switch 13 through the PCB, which is used to control the drive device to drive the mechanical lock rod to extend and the mechanical switch 13 to close the signal, unlocking When the lock button 4 moves downward, the pressure plate 16 is driven to move downward and no longer squeeze the button at the bottom of the mechanical switch 13. At the same time, the signal switch 12 is not triggered. At this time, the mechanical switch 13 is in the on state. When the unlock button 4 needs to be locked, the electromagnet assembly is energized and the coil A5 drives the iron core 17 and the push block 9 to move to the left synchronously. When the signal switch 12 is triggered, the push rod 10 locks the unlock button 4 at the same time. At the same time, the unlock button 4 squeezes the mechanical switch 13 upward, making it impossible for the unlock button 4 to be pressed down. At the same time, the mechanical switch 13 keeps a long closed signal. At this time, the driving device drives the mechanical lock rod to extend to lock the charging gun. When coil B7 is energized, the driving iron core 17 and the push rod 10 move to the right. In this way, while the signal switch 12 is closed, the unlocking button 4 automatically moves down because the return spring 14 pulls down to achieve automatic unlocking. At this time, the mechanical switch 13 is not pressed, and the driving device drives the mechanical locking rod to retract to unlock the charging gun. In this way, while the unlocking button 4 triggers the signal switch 12, the mechanical locking rod of the charging gun extends, and the charging gun realizes the locking function, and then the unlocking button 4 is locked. In this way, the "two-way" operation of locking and unlocking is achieved by dual maintenance of the power supply of coil A5 and coil B7, which is more convenient to use.

Claims

1. A double-hold electronic lock, comprising a bottom shell (1) and a front shell (2), wherein the front shell (2) is fixed to the upper end of the bottom shell (1), and a connector (3) is installed at the lower end of the bottom shell (1), characterized in that: An electromagnet assembly is fixedly installed on the right side of the bottom shell (1), and the electromagnet assembly includes a coil A (5), a fixing frame (6), a coil B (7), a connecting rod (8) and an iron core (17). The coil A (5) and the coil B (7) are fixed in the left and right positions inside the bottom shell (1). The fixing frame (6) is fixed between the coil A (5) and the coil B (7). The iron core (17) is slidably connected between the coil A (5) and the coil B (7). The connecting rod (8) passes through and is fixed at the center of the iron core (17). The left part of the rod (8) is fixedly connected with a push block assembly, the left side of the bottom shell (1) is elastically connected with an unlocking button (4), the upper part of the push block assembly contacts the bottom of the unlocking button (4), the rear end of the bottom shell (1) is fixed with a mechanical switch (13), the rear end of the unlocking button (4) contacts the lower end of the mechanical switch (13), the rear end of the bottom shell (1) is fixed with a signal switch (12), the signal switch (12) is located on the right side of the mechanical switch (13), and the rear end of the push block assembly contacts the lower end of the signal switch (12).

2. The dual-hold electronic lock according to claim 1, characterized in that: The inner diameter of the fixing frame (6) is larger than the outer diameter of the iron core (17).

3. The dual-hold electronic lock according to claim 1, characterized in that: The push block assembly comprises a push block (9) and a push rod (10), wherein the push block (9) is fixedly connected to the left portion of the connecting rod (8), and the push rod (10) is fixedly connected to the lower side of the left end of the push block (9).

4. The dual-hold electronic lock according to claim 3, characterized in that: A guide rail (14) is fixed at the bottom end of the bottom shell (1) and directly below the unlocking button (4), and the left portion of the push rod (10) extends into the guide rail (14) and is slidably connected to the guide rail (14).

5. The dual-hold electronic lock according to claim 3, characterized in that: The top section and right section of the push block (9) are both convex-shaped structures. The push block (9) is provided with convex edges (15) below the front and rear ends and the left end. The convex edge (15) at the left end contacts the bottom of the unlocking button (4), and the convex edge (15) at the rear end contacts the metal sheet at the bottom of the signal switch (12).

6. The dual-hold electronic lock according to claim 1, characterized in that: A return spring (11) is connected between the lower end of the unlocking button (4) and the inner bottom end of the bottom shell (1).

7. The dual-hold electronic lock according to claim 1, characterized in that: A pressing plate (16) is fixed to the lower portion of the rear end of the unlocking button (4), and the pressing plate (16) contacts the button at the lower portion of the mechanical switch (13).

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