Safety cabinet unlocking device

Abstract

The utility model relates to the field of locks, and discloses a safety cabinet unlocking device which comprises a shell, a mechanical lock, a driven part, a transmission part and an electromagnetic lock, the shell is provided with a containing cavity, the mechanical lock is fixedly installed on the shell, the rotating end of the mechanical lock is located in the containing cavity, the driven part is fixedly installed at the rotating end of the mechanical lock, and the mechanical lock drives the driven part to rotate; the transmission part is rotationally installed in the containing cavity, the mechanical lock rotates to abut against the transmission part and drives the transmission part to rotate by a preset angle, the electromagnetic lock comprises a lock shaft and a spring bolt, the spring bolt is fixedly arranged at the end of the lock shaft, the lock shaft is in transmission connection with the transmission part, and the transmission part rotates to drive the lock shaft and the spring bolt to move in the preset direction. The mechanical lock drives the driven part to rotate, then the driven part drives the lock shaft and the spring bolt to move in the preset direction, and therefore the spring bolt is separated from the lock catch state, the unlocking function is achieved, and the function can be achieved through the mechanical lock in the power failure state.

Description

Technical Field

[0001] This application relates to the field of locks, and more particularly to a safe unlocking device. Background Technology

[0002] Electromagnetic locks, a common type of electronic lock, are widely used in security cabinets in finance, healthcare, and record management. Their core principle is to control the extension and retraction of the bolt through electromagnetic attraction to open and close the cabinet door. Traditional electromagnetic locks typically operate on a "lock when power is off, unlock when power is on" mode: under normal power supply, the electromagnet generates magnetic force, overcoming the resistance of springs or mechanical structures to pull the bolt out of the lock slot, thus unlocking; when the power is off, the electromagnetic force disappears, and the bolt automatically retracts into the lock slot under the spring's reset action, completing the locking action. While this design ensures basic security during power outages, it has significant drawbacks in practical applications.

[0003] First, when encountering a sudden power outage, circuit failure, or power line damage, the electromagnetic lock will remain locked due to the inability to be powered, preventing the safety cabinet door from opening normally, which may affect critical operations and cause safety hazards. Utility Model Content

[0004] In view of this, the purpose of this application is to overcome the shortcomings of the prior art and provide a safe unlocking device.

[0005] To achieve the above objectives, the technical solution adopted in this application is as follows:

[0006] This application provides:

[0007] A safe unlocking device includes:

[0008] A housing having a receiving cavity;

[0009] A mechanical lock, which is fixedly mounted on the housing, with the rotating end of the mechanical lock located within the accommodating cavity;

[0010] A driven member is fixedly installed on the rotating end of the mechanical lock, and the mechanical lock drives the driven member to rotate.

[0011] A transmission component is rotatably mounted in the accommodating cavity. The transmission component is located on one side of the mechanical lock. The mechanical lock rotates and abuts against the transmission component, driving the transmission component to rotate by a preset angle.

[0012] An electromagnetic lock is fixedly installed in the accommodating cavity. The electromagnetic lock includes a locking shaft and a locking tongue. The locking tongue is fixedly disposed at the end of the locking shaft. The locking shaft is connected to the transmission component for transmission. The rotation of the transmission component drives the locking shaft and the locking tongue to move along a preset direction.

[0013] Furthermore, the mechanical lock includes a lock cylinder, and a rotating shaft is mounted on the rotating end of the lock cylinder, with a fixing hole formed on the end face of the rotating shaft.

[0014] Furthermore, the driven member includes a first transmission plate, which has a through-hole that engages with the rotating shaft for transmission, and an extension is fixedly provided on the outer circumferential surface of the first transmission plate.

[0015] Furthermore, the end face of the extension member away from the first transmission plate is an arc surface.

[0016] Furthermore, the transmission component includes an abutment plate, one end of which is fixedly provided with a hinge plate that is rotatably connected to the inner wall of the accommodating cavity, and the end of the abutment plate away from the hinge plate is fixedly provided with a second transmission plate, the second transmission plate being provided with a through-hole.

[0017] Furthermore, the electromagnetic lock also includes a mounting bracket with a cavity. A partition fixedly connected to the mounting bracket is provided in the cavity, dividing the cavity into a first receiving cavity and a second receiving cavity. A clearance groove adapted to the lock tongue is provided through the bottom wall of the second receiving cavity. The lock shaft is slidably mounted on the mounting bracket and extends through the first receiving cavity and the second receiving cavity to the outside. A spring is sleeved on the lock shaft, with one end of the spring abutting against the lock tongue and the end of the spring away from the lock tongue abutting against the partition. An electromagnetic coil for driving the lock shaft to move axially is provided inside the first receiving cavity.

[0018] Furthermore, a through hole is provided radially through one end of the locking shaft away from the locking tongue, and a locking pin is provided in the through hole.

[0019] Furthermore, the length of the locking pin is L, and the maximum length of the locking hole is D, satisfying: L > D.

[0020] Furthermore, the safety cabinet unlocking device also includes a fixing member located on one side of the shell, the fixing member including a locking block, and the locking block having a locking groove on the side facing the locking tongue.

[0021] This application uses a mechanical lock to drive the driven component to rotate, which in turn drives the lock shaft and lock tongue to move in a preset direction, thereby disengaging the lock tongue from the latch state and achieving the unlocking function. The function can also be achieved through the mechanical lock in the event of a power outage.

[0022] To make the above-mentioned objectives, features and advantages of this application more apparent and understandable, preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description

[0023] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 A schematic diagram of the overall structure of this application is shown;

[0025] Figure 2 A schematic diagram of the overall explosion state of this application is shown;

[0026] Figure 3 This shows a schematic cross-sectional view of the overall structure of this application;

[0027] Figure 4 A schematic diagram of the mechanical lock and driven component in their assembled state is shown;

[0028] Figure 5 A schematic diagram of the mechanical lock and driven component of this application under an explosive state is shown;

[0029] Figure 6 A schematic diagram of the transmission component structure of this application is shown;

[0030] Figure 7 A three-dimensional structural diagram of the electromagnetic lock of this application is shown;

[0031] Figure 8 A cross-sectional schematic diagram of the electromagnetic lock of this application is shown.

[0032] Explanation of key component symbols:

[0033] 100-Shell; 110-Receiving cavity; 200-Mechanical lock; 210-Lock cylinder; 220-Rotating shaft; 221-Fixing hole; 300-Driven component; 310-First transmission plate; 311-Transmission hole; 320-Extension component; 400-Transmission component; 410-Abutting plate; 420-Hinge plate; 430-Second transmission plate; 431-Snap-fit ​​hole; 500-Electromagnetic lock; 501-Mounting bracket; 5011-First receiving cavity; 5012-Second receiving cavity; 5013-Allowing groove; 502-Partition plate; 503-Electromagnetic coil; 504-Spring; 510-Lock shaft; 511-Through hole; 512-Snap pin; 520-Lock tongue; 600-Fixing component; 610-Lock block; 620-Lock groove. Detailed Implementation

[0034] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.

[0035] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0036] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0037] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0038] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0039] Some existing safety cabinets typically use electromagnetic locks for locking. However, in the event of a power outage, the electromagnetic lock cannot be energized to unlock, thus affecting its use. Therefore, this application uses a mechanical lock to rotate the driven component, which in turn drives the transmission component to move the locking shaft and bolt of the electromagnetic lock, thereby releasing the bolt from the locked state and achieving unlocking.

[0040] See Figure 1 , Figure 2 , Figure 3 as well as Figure 4 As shown in the figure, this application provides a safety cabinet unlocking device, which includes a housing 100, a mechanical lock 200, a driven member 300, a transmission member 400, and an electromagnetic lock 500. The housing 100 has a receiving cavity 110. The mechanical lock 200 is fixedly mounted on the housing 100, with its rotating end located within the receiving cavity 110. The driven member 300 is fixedly mounted on the rotating end of the mechanical lock 200, and the mechanical lock 200 drives the driven member 300 to rotate. The transmission member 400 is rotatably mounted within the receiving cavity 110. Inside the cavity 110, the transmission member 400 is located on one side of the mechanical lock 200. The mechanical lock 200 rotates and abuts against the transmission member 400, driving the transmission member 400 to rotate by a preset angle. The electromagnetic lock 500 is fixedly installed inside the cavity 110. The electromagnetic lock 500 includes a locking shaft 510 and a locking tongue 520. The locking tongue 520 is fixedly disposed at the end of the locking shaft 510. The locking shaft 510 is connected to the transmission member 400. The rotation of the transmission member 400 drives the locking shaft 510 and the locking tongue 520 to move along a preset direction.

[0041] Please continue reading. Figure 1 , Figure 2 , Figure 3 as well as Figure 4 As shown, when the electromagnetic lock 500 experiences a power outage during use and the safety cabinet still needs to be opened, the lock shaft 510 and the lock tongue 520 need to be moved to release the locking state. Specifically, a prepared key is inserted into the mechanical lock 200 to rotate the driven component 300 by a certain angle, which in turn rotates the transmission component 400 by a certain angle. This causes the lock shaft 510 and the lock tongue 520 located at one end of the transmission component 400 to move, thereby releasing the lock tongue 520 from the locking state and realizing the unlocking function.

[0042] For example, in order to enable the driven member 300 to rotate via the mechanical lock 200, the mechanical lock 200 can be a rotary lock, or other mechanical locks that can drive the driven member 300 to rotate at a certain angle. The specific type and model are not limited here.

[0043] In this embodiment, the mechanical lock 200 is fixedly installed on the housing 100, and the unlocking hole of the mechanical lock 200 is connected to the outside of the housing 100.

[0044] In this embodiment, the safety cabinet unlocking device further includes a fixing member 600 located on one side of the shell 100. The fixing member 600 includes a locking block 610, and the locking block 610 has a locking groove 620 on the side facing the locking tongue 520.

[0045] Please see Figure 2 and Figure 3 As shown, in the initial state, the electromagnetic lock 500 is de-energized, causing the bolt 520 to extend into the lock groove 620. At this time, the bolt 520 and the lock groove 620 are engaged and locked. When the bolt 520 disengages from the lock groove 620, the lock is unlocked. At this time, the bolt 520 and the lock groove 620 are no longer engaged.

[0046] Furthermore, the rotation of the transmission component 400 causes the locking shaft 510 and the locking tongue 520 to move along a preset direction, thereby separating the locking tongue 520 from the locking groove 620. The preset direction is the direction in which the locking tongue 520 moves away from the locking groove 620.

[0047] The mechanical lock 200 includes a lock cylinder 210, and a rotating shaft 220 is installed on the rotating end of the lock cylinder 210. A fixing hole 221 is opened on the end face of the rotating shaft 220.

[0048] The driven member 300 includes a first transmission plate 310, which has a transmission hole 311 through it. The transmission hole 311 is engaged with the rotating shaft 220 for transmission. An extension member 320 is fixedly provided on the outer peripheral surface of the first transmission plate 310.

[0049] Please see Figure 4 and Figure 5 The rotating shaft 220 is inserted into the transmission hole 311 of the first transmission plate 310. In order to enable the first transmission plate 310 to rotate at the same time as the rotating shaft 220 rotates, the rotating shaft 220 is engaged with the transmission hole 311. Furthermore, in order to prevent the first transmission plate 310 from separating from the rotating shaft 220, a screw can be screwed into the fixing hole 221 to limit the first transmission plate 310 in the axial direction and prevent the first transmission plate 310 from separating from the rotating shaft 220.

[0050] For example, in order to enable the rotating shaft 220 to engage with the transmission hole 311, the shapes of the rotating shaft 220 and the transmission hole 311 are non-circular. For example, their shapes can be triangular, quadrilateral, pentagonal, hexagonal, etc., or they can be slotted. For details, please refer to the following. Figure 4 and Figure 5As shown, two parallel planes are provided on the outer circumference of the rotating shaft 220, so the shape of the corresponding transmission hole 311 is adapted to the shape of the outer surface of the rotating shaft 220 to achieve a snap-fit; further, the outer surface of the fixing hole 221 can be gear-shaped, then the transmission hole 311 is toothed, and the transmission is achieved by the snap-fit ​​of the gear and the tooth. In this embodiment, the specific shapes of the fixing hole 221 and the transmission hole 311 are not limited here, as long as the two can achieve a snap-fit ​​transmission.

[0051] For further information, please refer to [link / reference]. Figure 2 , Figure 3 as well as Figure 4 As shown, in order to drive the transmission component 400 to rotate at a certain angle while the first transmission plate 310 rotates, an extension component 320 is integrally provided at the end of the first transmission plate 310. The first transmission plate 310 drives the extension component 320 to rotate, so that the extension component 320 abuts against the transmission component 400. As the extension component 320 continues to rotate, it also drives the transmission component 400 to rotate, thereby driving the locking shaft 510 and the locking tongue 520 to move in the direction away from the locking groove 620, so that the locking tongue 520 disengages from the locking groove 620 to achieve unlocking.

[0052] In this embodiment, the transmission member 400 is in a horizontal state in the initial state, and the driven member 300 is located below the transmission member 400. The first transmission plate 310 rotates and drives the extension member 320 to abut against the transmission member 400, thereby causing the transmission member 400 to rotate along the rotation point, driving the locking shaft 510 and the locking tongue 520 to move upward, thereby causing the locking tongue 520 to disengage from the locking groove 620 to achieve unlocking.

[0053] Please continue reading. Figure 4 and Figure 5 As shown, in order to make the first transmission plate 310 abut against the transmission component 400 and thus drive the transmission component 400 to rotate a certain angle more stably, the end face of the extension component 320 away from the first transmission plate 310 is an arc surface. The arc surface makes the contact and transmission between the extension component 320 and the transmission component 400 smoother.

[0054] The transmission component 400 includes an abutment plate 410. One end of the abutment plate 410 is fixedly provided with a hinge plate 420 that is rotatably connected to the inner wall of the accommodating cavity 110. The end of the abutment plate 410 away from the hinge plate 420 is fixedly provided with a second transmission plate 430. The second transmission plate 430 is provided with a through-hole 431.

[0055] Please see Figure 6As shown, in order to enable the transmission component 400 to rotate and drive the locking shaft 510 and locking tongue 520 to move, the abutment plate 410 is rotatably mounted on the inner wall of the accommodating cavity 110 via the hinge plate 420. Specifically, the hinge plate 420 is a plate with a rotation hole, and the hinge plate 420 and the abutment plate 410 are integrally formed. The other end of the abutment plate 410 is also integrally formed with a second transmission plate 430. In order to drive the locking shaft 510 to move, the second transmission plate 430 is provided with a snap-fit ​​hole 431. The locking shaft 510 passes through the snap-fit ​​hole 431, and the position of the locking shaft 510 can be limited by the snap-fit ​​pin 512 to prevent the locking shaft 510 from disengaging from the snap-fit ​​hole 431. This will be explained in detail below, and will not be elaborated on here.

[0056] Please continue reading. Figure 4 , Figure 5 as well as Figure 6 As shown, the extension 320 is driven to rotate upward by the first transmission plate 310 and will abut against the abutment plate 410. The abutment plate 410 will drive the second transmission plate 430 to rotate upward around the hinge plate 420, causing the lock shaft 510 to move away from the lock groove 620, thereby causing the lock tongue 520 to disengage from the lock groove 620 and unlock.

[0057] The electromagnetic lock 500 further includes a mounting bracket 501, which has a cavity. A partition 502 fixedly connected to the mounting bracket 501 is provided in the cavity, dividing the cavity into a first receiving cavity 5011 and a second receiving cavity 5012. The bottom wall of the second receiving cavity 5012 is provided with a clearance groove 5013 adapted to the locking tongue 520. The locking shaft 510 is slidably mounted on the mounting bracket 501 and extends through the first receiving cavity 5011 and the second receiving cavity 5012 to the outside. A spring 504 is sleeved on the locking shaft 510. One end of the spring 504 abuts against the locking tongue 520, and the end of the spring 504 away from the locking tongue 520 abuts against the partition 502. An electromagnetic coil 503 for driving the locking shaft 510 to move axially is provided inside the first receiving cavity 5011.

[0058] Please see Figure 7 and Figure 8 As shown, in this embodiment, in order to enable the locking shaft 510 to slide in the vertical direction, a sliding hole is provided through the partition 502 and the inner top wall of the first receiving cavity 5011. The sliding hole is slidably connected to the locking shaft 510. In the locked state, in order to keep the locking tongue 520 in the locking groove 620, a spring 504 is sleeved on the locking shaft 510 between the locking tongue 520 and the partition 502. Under the elastic force of the spring 504, the locking tongue 520 is driven to move into the locking groove 620, thereby driving the locking tongue 520 into the locking groove 620 to achieve locking.

[0059] When unlocking is required via the electromagnetic lock 500, the electromagnetic coil 503 is energized by the external controller, which causes the lock shaft 510 to overcome the elastic force of the spring 504 and move the lock tongue 520 upward, so that the lock tongue 520 disengages from the lock groove 620 to achieve unlocking.

[0060] The locking shaft 510 has a through hole 511 extending radially through one end away from the locking tongue 520, and a locking pin 512 is provided in the through hole 511.

[0061] Please continue reading. Figure 7 and Figure 8 As shown, in order to prevent the locking shaft 510 from disengaging from the locking hole 431, a through hole 511 is opened on the outer peripheral surface of the bottom of the locking shaft 510. Then, a locking pin 512 is inserted into the through hole 511. The spring 504 has the tendency to drive the locking shaft 510 and the locking tongue 520 downward, which will cause the outer peripheral surface of the locking pin 512 to abut against the upper surface of the second transmission plate 430. Due to the obstruction of the locking pin 512, the top of the locking shaft 510 will no longer disengage from the locking hole 431. That is, the abutment plate 410 drives the second transmission plate 430 to rotate, and under the transmission action of the locking pin 512, it drives the locking shaft 510 and the locking tongue 520 to move upward to achieve unlocking.

[0062] It should be noted that, since the second transmission plate 430 rotates and the locking shaft 510 moves linearly upwards and downwards, in order to prevent motion interference that may occur when the second transmission plate 430 rotates and drives the locking shaft 510 to move upwards and downwards, that is, to prevent the outer circumferential surface of the locking shaft 510 from abutting and jamming against the inner wall of the locking hole 431, the lateral length of the locking hole 431 is ( Figure 6 The viewing angle should be much larger than the diameter of the locking shaft 510, so that the snap-fit ​​hole 431 has enough space to avoid obstruction. That is, the snap-fit ​​hole 431 is an elongated hole, which allows radial displacement when the locking shaft 510 slides axially.

[0063] The length of the locking pin 512 is L, and the maximum length of the locking hole 431 is D, satisfying: L>D.

[0064] Please continue reading. Figure 6 , Figure 7 as well as Figure 8 As shown, in order to ensure that both ends of the locking pin 512 can always abut against the upper surface of the second transmission plate 430, the length of the locking pin 512 should be greater than the maximum length of the locking pin 512, i.e., L > D, so as to meet the needs of abutment transmission.

[0065] To enable the unlocking device to be installed on the safety cabinet, this application embodiment also provides a safety cabinet, which includes a cabinet body, a cabinet door, and any of the unlocking devices described above. The cabinet body has at least one opening, the cabinet door is installed at the opening of the cabinet body, the housing 100 of the unlocking device is installed on the cabinet door, and the fixing member 600 is installed on the cabinet body. Specifically, when it is necessary to lock and unlock the safety cabinet, the locking function of the safety cabinet is realized by driving the locking tongue 520 to extend into the locking groove 620, and the unlocking function of the safety cabinet is realized by driving the locking tongue 520 to disengage from the locking groove 620.

[0066] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0067] Although embodiments of this application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting this application. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of this application.

Claims

1. A safe unlocking device, characterized in that, include: A housing (100) having a receiving cavity (110); A mechanical lock (200) is fixedly mounted on the housing (100), and the rotating end of the mechanical lock (200) is located in the receiving cavity (110); A follower (300) is fixedly mounted on the rotating end of the mechanical lock (200), and the mechanical lock (200) drives the follower (300) to rotate; A transmission component (400) is rotatably mounted in the accommodating cavity (110). The transmission component (400) is located on one side of the mechanical lock (200). The mechanical lock (200) rotates to abut against the transmission component (400) and drives the transmission component (400) to rotate by a preset angle. An electromagnetic lock (500) is fixedly installed in the accommodating cavity (110). The electromagnetic lock (500) includes a locking shaft (510) and a locking tongue (520). The locking tongue (520) is fixedly disposed at the end of the locking shaft (510). The locking shaft (510) is connected to the transmission member (400). The transmission member (400) rotates to drive the locking shaft (510) and the locking tongue (520) to move along a preset direction.

2. The safe unlocking device according to claim 1, characterized in that, The mechanical lock (200) includes a lock cylinder (210), and a rotating shaft (220) is installed on the rotating end of the lock cylinder (210). A fixing hole (221) is opened on the end face of the rotating shaft (220).

3. The safe unlocking device according to claim 2, characterized in that, The driven member (300) includes a first transmission plate (310), the first transmission plate (310) is provided with a transmission hole (311) passing through it, the transmission hole (311) is engaged with the rotating shaft (220) for transmission, and an extension member (320) is fixedly provided on the outer peripheral surface of the first transmission plate (310).

4. The safe unlocking device according to claim 3, characterized in that, The end face of the extension (320) away from the first transmission plate (310) is an arc surface.

5. The safe unlocking device according to claim 1, characterized in that, The transmission component (400) includes an abutment plate (410), one end of which is fixedly provided with a hinge plate (420) rotatably connected to the inner wall of the accommodating cavity (110), and the end of the abutment plate (410) away from the hinge plate (420) is fixedly provided with a second transmission plate (430), and the second transmission plate (430) is provided with a snap-fit ​​hole (431) penetrating therethrough.

6. The safe unlocking device according to claim 5, characterized in that, The electromagnetic lock (500) further includes a mounting bracket (501), which has a cavity. A partition (502) is fixedly connected to the mounting bracket (501) within the cavity. The partition (502) divides the cavity into a first receiving cavity (5011) and a second receiving cavity (5012). A clearance groove (5013) adapted to the locking tongue (520) is provided through the bottom wall of the second receiving cavity (5012). The locking shaft (510) is slidably mounted on the mounting bracket (5011). 01) and the locking shaft (510) passes through the first receiving cavity (5011) and the second receiving cavity (5012) to the outside. A spring (504) is sleeved on the locking shaft (510). One end of the spring (504) abuts against the locking tongue (520), and the end of the spring (504) away from the locking tongue (520) abuts against the partition plate (502). An electromagnetic coil (503) for driving the locking shaft (510) to move axially is provided inside the first receiving cavity (5011).

7. The safe unlocking device according to claim 6, characterized in that, The locking shaft (510) has a through hole (511) extending radially through one end away from the locking tongue (520), and a locking pin (512) is provided in the through hole (511).

8. The safe unlocking device according to claim 7, characterized in that, The length of the locking pin (512) is L, and the maximum length of the locking hole (431) is D, satisfying: L > D.

9. The safe unlocking device according to claim 1, characterized in that, The safety cabinet unlocking device also includes a fixing member (600) located on one side of the shell (100), the fixing member (600) including a locking block (610), the locking block (610) having a locking groove (620) on the side facing the locking tongue (520).

Images