Electromagnetic lock and storage cabinet

Abstract

The utility model relates to the technical field of storage devices, in particular to an electromagnetic lock and a locker, the electromagnetic lock comprises a lock body and a lock catch, the lock body comprises a shell, a lock hook, a retainer and an electromagnet, both the lock hook and the retainer are rotatably mounted in the shell, the lock hook is provided with a first locking position, a second locking position and an unlocking position, and the first locking position, the second locking position and the unlocking position are opposite. The retainer is provided with a first position and a second position, and the electromagnet is used for driving the retainer to rotate between the first position and the second position; when the lock hook is located at the first locking position and the retainer is located at the first position, the lock hook is matched with the lock catch in a clamped mode, the retainer abuts against the lock hook to prevent the lock hook from turning to the unlocking position, and at the moment, when the lock catch is pushed by external force, the lock catch can drive the lock hook to turn to the second locking position; the lock hook located at the second locking position can be matched with the retainer in an inserting manner and prevent the retainer from turning to the second position; and when the retainer is located at the second position, the lock hook can rotate to an unlocking position separated from the lock catch, so that the electromagnetic lock has good shockproof performance.

Description

Technical Field

[0001] This utility model relates to the field of storage device technology, and in particular to an electromagnetic lock and a storage cabinet. Background Technology

[0002] Lockers are being used in a wider range of settings, such as in office buildings or residential areas for storing packages or mail, in supermarkets for storing personal items, and in tourist attractions or commercial streets for self-service vending.

[0003] In related technologies, the locker body is equipped with an electromagnetic lock, and the lock door has a latch. When the lock door is closed, the electromagnetic lock and the latch engage to lock the lock door. Specifically, the electromagnetic lock includes a latch and an electromagnet connected to the latch. Driven by the electromagnet, the latch has a locked position and an unlocked position. When the latch is in the locked position, it engages with the latch, locking the lock door. When the latch is in the unlocked position, it disengages from the latch, allowing the lock door to be opened. The electromagnet includes a solenoid, an armature, and an elastic element. The elastic element is connected to the armature, and the armature is connected to the latch. When the solenoid is de-energized, the armature extends under the elastic force of the elastic element, driving the latch to the locked position. When the solenoid is energized, it generates a magnetic force that attracts the armature, causing the armature to retract against the elastic force of the elastic element, driving the latch to the unlocked position. This type of electromagnetic lock relies on the elastic force of a spring element to keep the lock hook in the locked position. When the cabinet door shakes under external force, the latch can easily cause the lock hook to rotate. In this case, the lock hook will drive the armature to retract against the elastic force of the spring element, resulting in abnormal unlocking. Therefore, the electromagnetic locks in this technology have poor shock resistance. Utility Model Content

[0004] The purpose of this utility model is to provide an electromagnetic lock and a locker to improve the shock resistance of the electromagnetic lock.

[0005] On the one hand, this utility model provides an electromagnetic lock, which includes:

[0006] The lock body includes a housing, a lock hook, a stop, and an electromagnet. The lock hook and the stop are rotatably mounted in the housing. The lock hook can rotate relative to the housing to have a first locked position, a second locked position, and an unlocked position. The stop can rotate relative to the housing to have a first position and a second position. The electromagnet is mounted in the housing and is used to drive the stop to rotate between the first position and the second position.

[0007] When the lock hook is in the first locked position and the stop is in the first position, the lock hook engages with the latch, and the stop abuts against the lock hook to prevent the lock hook from turning to the unlocked position;

[0008] When the locking hook is in the first locking position, the stop is in the first position, and the latch is pushed by an external force, the latch can drive the locking hook to turn to the second locking position, and the locking hook in the second locking position engages with the stop and prevents the stop from turning to the second position;

[0009] When the stop is in the second position, the lock hook can rotate to the unlocked position where it is separated from the latch.

[0010] As a preferred technical solution for the electromagnetic lock, the lock hook includes a first wall and a second wall that are opposite to each other and spaced apart, and a lock groove with an opening is formed between the first wall and the second wall;

[0011] When the lock hook is in the first locking position and the stop is in the first position, the lock buckle is located in the lock groove, and the first wall is used to prevent the lock buckle from exiting the lock groove;

[0012] When the locking hook is in the first locking position, the stop is in the first position, and the latch is pushed by an external force, the latch can abut against the second wall, and the latch drives the locking hook in the first locking position to turn to the second locking position in the first direction, and the locking hook and the stop are engaged.

[0013] As a preferred technical solution for the electromagnetic lock, the lock hook includes a first connecting part and an abutting part, and the stop member includes a second connecting part and a blocking part. The first connecting part is one of the first hook part and the insertion part, and the second connecting part is the other of the first hook part and the insertion part. The first hook part is provided with a first slot.

[0014] When the stop is in the first position and the lock hook is in the first locked position, the blocking part abuts against the abutting part to prevent the lock hook from turning to the unlocked position in the second direction, and the insertion part is spaced apart from the first slot, with the first direction being opposite to the second direction;

[0015] When the locking hook is in the first locking position, the stop is in the first position, and the latch is pushed by an external force, the locking hook in the first locking position turns to the second locking position along the first direction, and the blocking part separates from the abutting part;

[0016] When the locking hook is in the second locking position and the stop is in the first position, the insertion part is inserted into the first slot and prevents the stop from turning to the second position.

[0017] As a preferred technical solution for the electromagnetic lock, the lock hook further includes a lock hook body rotatably connected to the housing. The first hook portion includes a first hook body and a first hook head. The first end of the first hook body is fixedly connected to the lock hook body. The second end of the first hook body extends away from the lock hook body. The first hook head is connected to the second end of the first hook body, and a first slot is formed between the first hook head and the lock hook body. The abutting portion is disposed on the side of the first hook body opposite to the first slot. The insertion portion is connected to the stop member.

[0018] When the locking hook is in the second locking position and the stop is in the first position, the first hook head is located downstream of the insertion part and prevents the stop from turning to the second position along the direction of the stop from the first position to the second position.

[0019] As a preferred technical solution for the electromagnetic lock, the lock hook includes a second hook portion and an abutment portion, and the stop member includes a third hook portion and a blocking portion. The second hook portion includes a second hook head and a second slot, and the third hook portion includes a third hook head and a third slot.

[0020] When the stop is in the first position and the lock hook is in the first locked position, the blocking part abuts against the abutting part to prevent the lock hook from turning to the unlocked position in the second direction, and the second hook part and the third hook part are spaced apart from each other;

[0021] When the locking hook is in the first locking position, the stop is in the first position, and the latch is pushed by an external force, the locking hook in the first locking position turns to the second locking position along the first direction, and the blocking part separates from the abutting part, with the first direction being opposite to the second direction;

[0022] When the locking hook is in the second locking position and the stop is in the first position, the second hook head is inserted into the third slot, the third hook head is inserted into the second slot, and the stop is prevented from turning to the second position.

[0023] As a preferred technical solution for the electromagnetic lock, the lock hook is provided with a first opening groove, and the stop member is provided with a second opening groove. Both the first opening groove and the second opening groove have openings. The second hook is disposed in the first opening groove, and the blocking part and the third hook are respectively disposed on two opposite side walls of the second opening groove. When the lock hook is in the first locking position and the stop member is in the first position, the opening of the first opening groove is opposite to and communicates with the opening of the second opening groove. The third hook extends into the first opening groove and the second hook extends into the second opening groove.

[0024] As a preferred technical solution for the electromagnetic lock, the lock hook is provided with a first limiting surface, which is an arc surface with the rotation center of the lock hook as the center, and the opening of the first opening groove is opened on the first limiting surface; the stop member is provided with a second limiting surface, which is an arc surface, and the radius of the second limiting surface is adapted to the radius of the first limiting surface, and the opening of the second opening groove is opened on the second limiting surface;

[0025] When the lock hook is in the unlocked position and the stop is in the second position, the first limiting surface and the second limiting surface cooperate with each other.

[0026] As a preferred technical solution for the electromagnetic lock, the lock hook includes a lock hook body, the first opening groove is formed in the lock hook body and extends along the rotation axis of the lock hook, the depth of the first opening groove is less than the thickness of the lock hook body; and / or,

[0027] The stop includes a stop body, and the second opening groove is formed in the stop body along the extension direction of the rotation axis of the stop. The depth of the second opening groove is less than the thickness of the stop body.

[0028] As a preferred technical solution for the electromagnetic lock, the lock body further includes a limiting post and an elastic element. The limiting post is fixedly installed inside the housing, and the elastic element is connected to the lock hook. The elastic force of the elastic element causes the lock hook to always have a tendency to rotate toward the unlocking position. When the lock hook is in the unlocking position, the lock hook abuts against the limiting post under the elastic force of the elastic element.

[0029] The electromagnetic lock provided by this utility model has at least the following beneficial effects:

[0030] The electromagnetic lock includes a lock body and a latch. The lock body includes a housing, a hook, a stop, and an electromagnet. The hook and the stop are rotatably mounted inside the housing. The hook can rotate relative to the housing to have a first locked position, a second locked position, and an unlocked position. The stop can rotate relative to the housing to have a first position and a second position. The electromagnet is installed inside the housing and is used to drive the stop to rotate between the first and second positions. When the hook is in the first locked position and the stop is in the first position, the hook engages with the latch, and the stop abuts against the hook to prevent the hook from turning to the unlocked position. When the hook is in the first locked position, the stop is in the first position, and the latch is pushed by an external force, the latch can drive the hook in the first locked position to turn to the second locked position, and the hook in the second locked position engages with the stop and prevents the stop from turning to the second position. When the stop is in the second position, the hook can turn to the unlocked position, which is separated from the latch. The electromagnetic lock provided in this embodiment has a lock body installed on the cabinet body and a latch installed on the cabinet door. The cabinet door is movably connected to the cabinet body, and the cabinet door can rotate relative to the cabinet body to open or close the opening of the cabinet. The latch has a first locking position, a second locking position, and an unlocking position. When the cabinet door is in the closed position, the latch in the first locking position engages with the latch to prevent the cabinet door from being opened. The stop member abuts against the latch and prevents the latch from rotating to the unlocking position. At this time, if the cabinet door is pulled outward, the stop member will prevent the latch from turning to the unlocking position. The latched latch and the latch prevent the cabinet door from being opened. If the cabinet door is pushed inward, the latch will push the latch from the first locking position to the second locking position. The latch in the second locking position can engage with the stop member and prevent the stop member from turning to the second position, and lock the stop member in the first position. Therefore, even if the cabinet door is subjected to external force, the stop can still reliably remain in the first position and reliably abut against the lock hook to prevent the lock hook from turning to the unlock position, thus avoiding abnormal unlocking and effectively improving the shock resistance of the electromagnetic lock.

[0031] On the other hand, this utility model provides a storage cabinet, including a cabinet body, a cabinet door, and an electromagnetic lock as described in any of the above solutions. The cabinet body has an opening, the cabinet door is pivotally connected to the cabinet body, and the cabinet door can rotate relative to the cabinet body to open or close the opening.

[0032] The lock body is located on one of the cabinet body and the cabinet door, and the latch is located on the other of the cabinet body and the cabinet door. When the cabinet door closes the opening, the latch engages with the latch hook.

[0033] The locker provided by this utility model has at least the following beneficial effects:

[0034] The locker includes the aforementioned electromagnetic lock, which has excellent shock resistance, improves the stability of the locker door when it is closed or open, and ensures the safety of the items inside the locker. Attached Figure Description

[0035] Figure 1 This is a schematic diagram of the storage cabinet in an embodiment of the present utility model;

[0036] Figure 2 This is a schematic diagram of the electromagnetic lock in an embodiment of the present invention;

[0037] Figure 3 This is a schematic diagram of the first structure of the electromagnetic lock in this embodiment of the present invention (the lock hook is located in the first locking position and the stop is located in the first position);

[0038] Figure 4 This is a schematic diagram of the second structure of the electromagnetic lock in an embodiment of the present invention (the lock hook is in the unlocked position and the stop is in the second position);

[0039] Figure 5 This is a first cross-sectional view of the electromagnetic lock in an embodiment of the present invention (the lock hook is in the first locking position and the stop is in the first position);

[0040] Figure 6 This is a second cross-sectional view of the electromagnetic lock in an embodiment of the present invention (the lock hook is in the second locking position and the stop is in the first position);

[0041] Figure 7 This is a third sectional view of the electromagnetic lock in an embodiment of the present invention (the lock hook is in the unlocked position and the stop is in the second position);

[0042] Figure 8 This is a first partial enlarged view of the electromagnetic lock in one embodiment of the present invention (the lock hook is in the first locking position and the stop is in the first position);

[0043] Figure 9 This is a second partial enlarged view of the electromagnetic lock in one embodiment of the present invention (the lock hook is in the second locking position and the stop is in the first position);

[0044] Figure 10 This is a partial enlarged view of the electromagnetic lock in another embodiment of the present invention (the lock hook is in the second locking position and the stop is in the first position);

[0045] Figure 11 This is a schematic diagram of the stop and latch in the electromagnetic lock in this embodiment of the utility model;

[0046] Figure 12 This is a schematic diagram of the structure of the locking hook in the electromagnetic lock in this embodiment of the utility model;

[0047] Figure 13 This is a schematic diagram of the stop component in an embodiment of the present utility model.

[0048] In the picture:

[0049] 100. Cabinet body; 200. Cabinet door; 201. Opening; 300. Electromagnetic lock;

[0050] 1. Lock body; 2. Lock catch; 3. Mounting base;

[0051] 11. Housing; 111. First housing; 112. Second housing; 113. First shaft; 114. Second shaft; 115. Guide groove;

[0052] 12. Lock hook; 121. First wall; 122. Second wall; 123. Lock groove; 124. Bottom wall; 125. First opening groove; 126. First limiting surface; 127. Abutting part; 128. First core hole; 129. Lock hook body;

[0053] 13. Stop; 131. Second opening groove; 132. Second limiting surface; 133. Blocking part; 134. Second core hole; 135. Stop body;

[0054] 14. Electromagnet; 141. Coil; 142. Armature; 143. Compression spring;

[0055] 15. Elastic components;

[0056] 161. First hook part; 162. First hook body; 163. First hook head; 164. Insertion part; 165. Second hook part; 166. Third hook part; 167. First slot; 168. Second hook body; 169. Second hook head; 170. Second slot; 171. Third hook body; 172. Third hook head; 173. Third slot;

[0057] 17. Limiting post; 18. Emergency rod; 19. Push rod; 20. Push rod spring;

[0058] 21. First shot; 22. Second shot; 23. Third shot. Detailed Implementation

[0059] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0060] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and for 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. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. The terms "first position" and "second position" refer to two different positions. Moreover, "above," "on top of," and "over" the first feature in relation to the second feature includes the first feature directly above and diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "under," and "below" the first feature in relation to the second feature includes the first feature directly below and diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0061] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0062] The embodiments of this utility model 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 utility model, and should not be construed as limiting this utility model.

[0063] Please refer to Figure 1 and Figure 2This embodiment provides a storage cabinet, which includes a cabinet body 100, a cabinet door 200, and an electromagnetic lock 300. The cabinet body 100 has an opening 201, and the cabinet door 200 is pivotally connected to the cabinet body 100 and can rotate relative to the cabinet body 100 to open or close the opening 201. The electromagnetic lock 300 includes a lock body 1 and a latch 2. The lock body 1 is disposed on one of the cabinet body 100 and the cabinet door 200, and the latch 2 is disposed on the other of the cabinet body 100 and the cabinet door 200. When the cabinet door 200 closes the opening 201, the latch 2 engages with the locking hook 12 of the lock body 1 to lock the position of the cabinet door 200 relative to the cabinet body 100. Specifically, this embodiment exemplarily provides a scheme in which the lock body 1 of the electromagnetic lock 300 is disposed on the cabinet body 100, and the latch 2 of the electromagnetic lock 300 is disposed on the cabinet door 200. In other embodiments, the cabinet door 200 may also be slidably connected to the cabinet body 100; or the lock body 1 of the electromagnetic lock 300 may be disposed on the cabinet door 200, and the latch 2 of the electromagnetic lock 300 may be disposed on the cabinet body 100.

[0064] Alternatively, please refer to Figure 1 The cabinet body 100 is provided with multiple openings 201. The storage cabinet includes multiple cabinet doors 200 and multiple electromagnetic locks 300. Each cabinet door 200 is pivotally connected to the cabinet body 100. Each cabinet door 200 and each electromagnetic lock 300 corresponds one-to-one with each opening 201. Each cabinet door 200 can rotate relative to the cabinet body 100 to open or close its corresponding opening 201. Each electromagnetic lock 300 is used to lock the position of the corresponding cabinet door 200 relative to the cabinet body 100 when the corresponding opening 201 is closed. Preferably, the multiple openings 201 are arranged in M ​​rows and N columns. M and N are both positive integers, and at least one of them is greater than 1.

[0065] Please refer to Figures 2 to 10The electromagnetic lock 300 includes a lock body 1 and a latch 2. The lock body 1 includes a housing 11, a latch 12, a stop 13, and an electromagnet 14. Both the latch 12 and the stop 13 are rotatably mounted within the housing 11. The latch 12 can rotate relative to the housing 11 to have a first locked position, a second locked position, and an unlocked position. The stop 13 can rotate relative to the housing 11 to have a first position and a second position. The electromagnet 14 is mounted within the housing 11 and is used to drive the stop 13 to rotate between the first and second positions. When the latch 12 is in the first locked position and... When the stop 13 is in the first position, the hook 12 engages with the latch 2, and the stop 13 abuts against the hook 12 to prevent the hook 12 from turning to the unlock position. When the hook 12 is in the first locked position, the stop 13 is in the first position, and the latch 2 is pushed by an external force, the latch 2 can drive the hook 12 in the first locked position to turn to the second locked position, and the hook 12 in the second locked position engages with the stop 13, preventing the stop 13 from turning to the second position. When the stop 13 is in the second position, the hook 12 can turn to the unlock position where it is separated from the latch 2.

[0066] The electromagnetic lock 300 provided in this embodiment has a locking hook 12 with a first locking position, a second locking position, and an unlocking position, such as... Figure 3 and Figure 5 As shown, when the cabinet door 200 is in the closed position of the closed opening 201, the lock hook 12 in the first locking position engages with the latch 2, preventing the cabinet door 200 from being opened. The stop 13 abuts against the lock hook 12 and prevents the lock hook 12 from rotating to the unlocked position. Figure 4 As shown, when the electromagnet 14 drives the stop 13 to the second position, the stop 13 does not abut against the lock hook 12, so it cannot prevent the lock hook 12 from turning to the unlock position. At this time, when the cabinet door 200 is opened, the latch 2 that moves with the cabinet door 200 can drive the lock hook 12 to turn to the unlock position. The lock hook 12 releases the lock on the position of the latch 2, so that the cabinet door 200 can be opened.

[0067] When the latch 12 of the electromagnetic lock 300 is engaged with the buckle 2, that is, when the latch 12 is in the first locked position and the stop 13 is in the first position, when the cabinet door 200 shakes under the action of external force, the external force on the cabinet door 200 is divided into two situations: one is pulling the cabinet door 200 outward, and the other is pushing the cabinet door 200 inward. Figure 5 As shown, if the cabinet door 200 is pulled outward, the stop 13, which abuts against the lock hook 12, will prevent the lock hook 12 from turning to the unlock position. The lock hook 12 remains in the first locked position, and the engaging lock hook 12 and latch 2 prevent the cabinet door 200 from being opened; Figure 6As shown, if the cabinet door 200 is pushed inward, the latch 2 will push the latch 12 from the first locking position to the second locking position. The latch 12 in the second locking position engages with the stop 13 and prevents the stop 13 from turning to the second position, thereby locking the stop 13 in the first position. Even if the cabinet door 200 is subjected to external force, the stop 13 can still reliably remain in the first position. When the external force pushing the cabinet door 200 inward disappears, the latch 12 returns to the first locking position, and the stop 13 can still reliably abut against the latch 12 to prevent the latch 12 from turning to the unlocking position, thus avoiding abnormal unlocking. Therefore, the shockproof performance of the electromagnetic lock 300 is effectively improved.

[0068] It is understood that in this embodiment, the first locking position of the locking hook 12 is located between the second locking position and the unlocking position, and the locking hook 12 extends from the first locking position along a first direction (e.g., Figures 8 to 10 (As indicated by the middle arrow a) turns to the second locking position, and the locking hook 12 moves from the first locking position along the second direction (as shown by the middle arrow a) to the second locking position. Figures 8 to 10 The direction indicated by the middle arrow (b) turns to the unlock position, and the second direction is opposite to the first direction.

[0069] In addition, in this embodiment, pushing the latch 2 with external force (that is, pushing the cabinet door 200 inward) means that under the action of external force, the cabinet door 200 drives the latch 2 to rotate synchronously in the direction of closing the opening 201; pulling the cabinet door 200 outward means that under the action of external force, the cabinet door 200 drives the latch 2 to rotate synchronously in the direction of opening the opening 201.

[0070] Alternatively, please refer to Figures 3 to 7 The lock body 1 also includes an elastic element 15, which is connected between the lock hook 12 and the housing 11. The elastic element 15 is configured to ensure that the lock hook 12 always has a rotational tendency to turn towards the unlocking position. With this configuration, when the stop 13 is in the first position, the lock hook 12 and the stop 13 reliably abut against each other under the action of the elastic element 15, forming a tight bond and reducing the swaying of the lock hook 12 under external force. When the electromagnet 14 drives the stop 13 to the second position, the obstruction of the stop 13 against the lock hook 12 disappears, and the elastic element 15 can drive the lock hook 12 to the unlocking position. The lock hook 12 pushes the latch 2 outward until the lock hook 12 separates from the latch 2, and the latch 2 causes the cabinet door 200 to spring open, facilitating user access. Preferably, the elastic element 15 is a torsion spring, with its two arms connected to the lock hook 12 and the housing 11 respectively. In other embodiments, the elastic element 15 can also be a tension spring, etc.

[0071] Optionally, the latch 2 is fixedly connected to the mounting base 3, and the mounting base 3 is fixedly installed on the cabinet door 200. Please continue to refer to Figures 3 to 7The lock body 1 also includes a push rod 19 and a push rod spring 20. One end of the push rod 19 is located inside the housing 11, and the other end of the push rod 19 extends out of the housing 11. The top rod 19 is slidably connected to the housing 11. The top rod 19 can slide relative to the housing 11 to have an open position and a closed position. The top rod spring 20 is sleeved on the top rod 19 and abuts against both the top rod 19 and the housing 11. The top rod spring 20 drives the top rod 19 to always tend to move towards the open position. During the closing process of the cabinet door 200, the mounting base 3 abuts against the top rod 19 and overcomes the elastic force of the top rod spring 20 to push the top rod 19 back into the housing 11 until the top rod 19 is in the closed position. During the opening process of the cabinet door 200, when the stop 13 moves to the second position, the top rod 19 extends outward from the housing 11 under the drive of the top rod spring 20 and pushes the cabinet door 200 outward through the mounting base 3, so that the cabinet door 200 is popped open, further improving the convenience of opening the door for the user.

[0072] Alternatively, please refer to Figures 2 to 7 , Figure 12 and Figure 13 The housing 11 includes a first housing 111 and a second housing 112 that are fastened together, and a first shaft 113 and a second shaft 114 that are parallel and spaced apart. Both ends of the first shaft 113 and the two ends of the second shaft 114 are respectively connected to the first housing 111 and the second housing 112. A locking hook 12 is sleeved on the first shaft 113 and can rotate around the first shaft 113. A stop member 13 is sleeved on the second shaft 114 and can rotate around the second shaft 114. Specifically, in this embodiment, the locking hook 12 is provided with a first core hole 128, and the locking hook 12 is rotatably sleeved on the first shaft 113 through the first core hole 128; the stop member 13 is provided with a second core hole 134, and the stop member 13 is rotatably sleeved on the second shaft 114 through the second core hole 134.

[0073] Alternatively, please refer to Figures 2 to 7 ,as well as Figures 11 to 13The locking hook 12 includes a first wall 121 and a second wall 122 that are opposite to each other and spaced apart. A locking groove 123 with an opening is formed between the first wall 121 and the second wall 122. When the locking hook 12 is in the first locking position and the stop member 13 is in the first position, the latch 2 is located in the locking groove 123, and the first wall 121 is used to prevent the latch 2 from exiting the locking groove 123. When the locking hook 12 is in the first locking position, the stop member 13 is in the first position, and the latch 2 is pushed by an external force, the latch 2 can abut against the second wall 122, and the latch 2 drives the locking hook 12 located in the first locking position to turn to the second locking position in the first direction, and makes the locking hook 12 engage with the stop member 13. With this configuration, when the locking hook 12 is in the first locking position and the stop 13 is in the first position, if the cabinet door 200 is pulled outward, the locking hook 12 can engage with the latch 2 through the first wall 121 to lock the position of the latch 2, thereby locking the position of the cabinet door 200. If the cabinet door 200 is pushed inward, the latch 2 can be pushed to the second locking position along the first direction through the second wall 122. During the rotation of the locking hook 12, the locking hook 12 engages with the stop 13 to lock the position of the stop 13, stabilizing the stop 13 in the first position. After the locking hook 12 returns to the first locking position, the stop 13 can still abut against the locking hook 12, thereby preventing the cabinet door 200 from being opened and ensuring the reliable shockproof performance of the electromagnetic lock 300.

[0074] Alternatively, please refer to Figures 2 to 7 The locking hook 12 also includes a bottom wall 124 connected between the first wall 121 and the second wall 122. The first wall 121 and the second wall 122 are parallel to each other and are spaced apart along the width direction of the locking groove 123. Their extension direction is the length direction of the locking groove 123. The ends of the first wall 121 and the second wall 122 away from the bottom wall 124 form the opening of the locking groove 123. The width of the locking groove 123 is greater than the maximum outer diameter of the latch 2. The latch 2 enters the locking groove 123 through the opening of the locking groove 123 and is located between the first wall 121 and the second wall 122. Since the width of the locking groove 123 is greater than the maximum outer diameter of the latch 2, the locking hook 12 can rotate from the first locking position to the second locking position while the latch 2 is located in the locking groove 123.

[0075] Alternatively, please refer to Figures 2 to 7 The housing 11 is provided with a guide groove 115 with an opening to guide the movement direction of the latch 2. When the latch 12 is in the unlocked position, the opening of the lock groove 123 is opposite to and connected to the opening of the guide groove 115. After the latch 2 enters the guide groove 115 through the opening of the guide groove 115, it enters the opening of the lock groove 123 under the guidance of the guide groove 115. When the cabinet door 200 is closed, as the latch 2 continues to move, the latch 2 contacts the second wall 122 of the latch 12 and pushes the latch 12 to turn to the first locking position.

[0076] Alternatively, please refer to Figures 2 to 7 The latch 2 includes a first rod 21, a second rod 22, and a third rod 23 connected in a U-shape. The first rod 21 and the third rod 23 are arranged in parallel relative to each other. The end of each rod away from the second rod 22 is fixedly connected to the mounting base 3, which is fixedly installed on the cabinet door 200. When the cabinet door 200 is closed and the locking hook 12 is in the first locking position, the second rod 22 of the latch 2 is located in the locking groove 123 and between the first wall 121 and the second wall 122. The direction of movement of the cabinet door 200 is set at an angle to the length direction of the locking groove 123. The first wall 121 prevents the latch 2 from exiting the locking groove 123, thereby preventing the cabinet door 200 from being opened. When the cabinet door 200 is pushed inward, the second rod 22 of the latch 2 pushes the second wall 122 and drives the locking hook 12, which is in the first locking position, to turn to the second locking position along the first direction. During the rotation of the locking hook 12 along the first direction, the locking hook 12 engages with the stop 13, thereby locking the position of the stop 13 and stabilizing the stop 13 in the first position.

[0077] Alternatively, please refer to Figure 8 and Figure 9The locking hook 12 includes a first connecting portion and an abutting portion 127, and the stop member 13 includes a second connecting portion and a blocking portion 133. The first connecting portion is one of a first hook portion 161 and a plug portion 164, and the second connecting portion is the other of the first hook portion 161 and the plug portion 164. The first hook portion 161 is provided with a first slot 167. When the stop member 13 is in the first position and the locking hook 12 is in the first locked position, the blocking portion 133 abuts against the abutting portion 127 to prevent the locking hook 12 from rotating in the second direction. When the latch 12 is in the first locked position, the plug 164 and the first slot 167 are spaced apart and the first direction is opposite to the second direction; when the latch 12 is in the first locked position, the stop 13 is in the first position and the latch 2 is pushed by an external force, the latch 12 in the first locked position turns to the second locked position along the first direction, and the blocking part 133 separates from the abutting part 127; when the latch 12 is in the second locked position, the plug 164 is plugged into the first slot 167 and prevents the stop 13 from turning to the second position. Specifically, this embodiment exemplarily provides a scheme in which the first hook 161 is connected to the lock hook 12 and the plug-in part 164 is connected to the stop member 13. When the stop member 3 is in the first position and the lock hook 2 is in the first locked position, along the first direction, the plug-in part 164 is located downstream of the first hook 161, and the plug-in part 164 and the first slot 167 of the first hook 161 are spaced apart. At this time, when the lock hook 12 turns to the second locked position along the first direction, the plug-in part 164 is inserted into the first slot 167 of the first hook 161, preventing the stop member 13 from turning to the second position. The lock hook 12 and the stop member 13 lock the stop member 13 in the first position through the simple plug-in cooperation of the first hook 161 and the plug-in part 164. In other embodiments, the first hook 161 can be connected to the stop 13, and the plug 164 can be connected to the lock hook 12. When the stop 3 is in the first position and the lock hook 12 turns from the first unlock position to the second locking position in the first direction, the plug 164 can also be inserted into the first slot 167 of the first hook 161 and prevent the stop 13 from turning to the second position.

[0078] Optionally, when the stop 13 is in the first position, the blocking part 133 is located on the rotation path of the abutment part 127. Under the elastic force of the elastic member 15, the abutment part 127 abuts against the blocking part 133. When the stop 13 turns to the second position, the blocking part 133 exits the rotation path of the abutment part 127. Under the elastic force of the elastic member 15, the lock hook 12 turns to the unlocking position. At the same time, the second wall 122 of the lock hook 12 pushes the latch 2 to move and exits the lock groove 123 through the opening of the lock groove 123. The latch 2 causes the cabinet door 200 to be popped open.

[0079] Alternatively, please refer to Figure 8 and Figure 9The locking hook 12 also includes a locking hook body 129 rotatably connected to the housing 11. The first hook portion 161 includes a first hook body 162 and a first hook head 163. The first end of the first hook body 162 is fixedly connected to the locking hook body 129. The second end of the first hook body 162 extends away from the locking hook body 129. The first hook head 163 is connected to the second end of the first hook body 162, and a first slot 167 is formed between the first hook head 163 and the locking hook body 129. The abutment portion 127 is disposed on the side of the first hook body 162 away from the first slot 167. The insertion portion 164 is connected to the stop member 13. When the locking hook 12 is in the second locking position and the stop member 13 is in the first position, the first hook head 163 is located downstream of the insertion portion 164 and prevents the stop member 13 from turning to the second position along the direction of the stop member 13 from the first position to the second position. With this configuration, the abutment portion 127 is placed on the first hook body 162 of the first hook portion 161, resulting in a compact structure.

[0080] As one alternative, please refer to Figures 5 to 7 ,as well as Figures 10 to 13 The locking hook 12 includes a second hook portion 165 and an abutment portion 127, and the stop member 13 includes a third hook portion 166 and a blocking portion 133. The second hook portion 165 includes a second hook head 169 and a second slot 170, and the third hook portion 166 includes a third hook head 172 and a third slot 173. When the stop member 13 is in the first position and the locking hook 12 is in the first locked position, the blocking portion 133 abuts against the abutment portion 127 to prevent the locking hook 12 from turning to the unlocked position in the second direction, and the second hook portion 165 abuts against the third hook portion 133. The parts 166 are arranged at relative intervals; when the locking hook 12 is in the first locking position, the stop member 13 is in the first position, and the latch 2 is pushed by an external force, the locking hook 12 in the first locking position rotates to the second locking position in the first direction, and the blocking part 133 separates from the abutting part 127; when the locking hook 12 is in the second locking position and the stop member 13 is in the first position, the second hook head 169 inserts into the third slot 173, the third hook head 172 inserts into the second slot 170, and prevents the stop member 13 from rotating to the second position. With this arrangement, when the locking hook 12 is in the second locking position and the stop member 13 is in the first position, the second hook part 165 and the third hook part 166 are interlocked, which can more reliably prevent the stop member 13 from rotating to the second position.

[0081] Specifically, along the direction of the stop 13 from the first position to the second position, the second hook 169 is located downstream of the third hook 172 and prevents the stop 13 from turning to the second position. Please refer to... Figure 12 and Figure 13In this embodiment, the second hook portion 165 further includes a second hook body 168, and the third hook portion further includes a third hook body 171. The first end of the second hook body 168 is fixedly connected to the locking hook body 129, and the second end of the second hook body 168 extends away from the locking hook body 129. The second hook head 169 is connected to the second end of the second hook body 168, and a second groove 170 is formed between the second hook head 169 and the locking hook body 129. The stop member 13 further includes a stop body 135, the first end of the third hook body 171 is fixedly connected to the stop body 135, the second end of the third hook body 171 extends away from the stop body 135, and a third hook head 172 is connected to the second end of the third hook body 171, and a third groove 173 is formed between the third hook head 172 and the stop body 135.

[0082] Alternatively, please refer to Figures 11 to 13 The locking hook 12 has a first opening groove 125, and the stop member 13 has a second opening groove 131. Both the first opening groove 125 and the second opening groove 131 have openings. A second hook portion 165 is disposed in the first opening groove 125, and a blocking portion 133 and a third hook portion 166 are respectively disposed on two opposite side walls of the second opening groove 131. When the locking hook 12 is in the first locked position and the stop member 13 is in the first position, the opening of the first opening groove 125 is opposite to and communicates with the opening of the second opening groove 131. The second hook portion 165 extends into the second opening groove 131 and the third hook portion 166 extends into... The first opening groove 125 is configured such that when the locking hook 12 is in the first locked position and the stop member 13 is in the first position, the second hook portion 165 extends into the second opening groove 131, and the third hook portion 166 extends into the first opening groove 125. When the locking hook 12 rotates relative to the housing 11, the second opening groove 131 can limit the range of motion of the second hook portion 165, and the first opening groove 125 can limit the range of motion of the third hook portion 166, thereby limiting the range of rotation of the locking hook 12 between the first and second locked positions, ensuring that the locking hook 12 can always reliably prevent the latch 2 from exiting the locking groove 123. Specifically, in this embodiment, when the blocking portion 133 is in the first position, along the first direction, the blocking portion 133 and the third hook portion 166 are respectively located at both ends of the second opening groove 131, and the blocking portion 133 is located upstream of the third hook portion 166.

[0083] It should be noted that in this embodiment, the slot 167 of the second hook 165 is connected to the first opening slot 125, and the slot 167 of the third hook 166 is connected to the second opening slot 131. Thus, when the second hook 165 extends into the second opening slot 131 and the third hook 166 extends into the first opening slot 125, when the locking hook 2 is in the second locking position, the second hook head 169 can be inserted into the third slot 173 and the third hook head 172 can be inserted into the second slot 170.

[0084] Alternatively, please refer to Figures 3 to 13The locking hook 12 is provided with a first limiting surface 126, which is an arc surface with the rotation center of the locking hook 12 as the center, and the opening of the first opening groove 125 is opened on the first limiting surface 126; the stop member 13 is provided with a second limiting surface 132, which is an arc surface, and the radius of the second limiting surface 132 is adapted to the radius of the first limiting surface 126, and the opening of the second opening groove 131 is opened on the second limiting surface 132; when the locking hook 12 is in the unlocked position and the stop member 13 is in the second position, the first limiting surface 126 and the second limiting surface 132 are engaged. By setting a first limiting surface 126 centered on the rotation center of the locking hook 12 and a second limiting surface 132 that mates with the first limiting surface 126, the first limiting surface 126 and the second limiting surface 132 can move relative to each other during the process of the locking hook 12 rotating from the unlocked position to the first locked position. When the two are not separated, the first limiting surface 126 and the second limiting surface 132 abut against each other to prevent the stop member 13 from moving to the first position, thereby keeping the stop member 13 in the second position. When the two move relative to each other until the first limiting surface 126 and the second limiting surface 132 just separate, the locking hook 12 is just in the first locked position, and the opening of the first opening groove 125 and the opening of the second opening groove 131 can be opposite and connected. The stop member 13 can move from the second position to the first position under the drive of the electromagnet 14, so that the second hook part 165 can extend into the first opening groove 125 and the third hook part 166 can extend into the second opening groove 131.

[0085] Alternatively, please refer to Figure 3 and Figure 4The electromagnet 14 includes a coil 141, an armature 142, and a spring 143. The armature 142 has an extended position and a retracted position relative to the coil 141. The spring 143 is connected to the armature 142 and makes the armature 142 always tend to move towards the extended position. The armature 142 is connected to the stop 13. When the coil 141 is de-energized, under the action of the elastic force of the spring 143, the spring 143 drives the armature 142 to move to the extended position, and the armature 142 drives the stop 13 to turn to the first position. When the coil 141 is energized, the coil 141 generates magnetic force and drives the armature 142 to move to the retracted position against the elastic force of the spring 143, and the armature 142 drives the stop 13 to turn to the second position. Specifically, in this embodiment, when the cabinet door 200 is opened, the electromagnet 14 is de-energized, the lock hook 12 is in the unlocked position, the stop 13 is in the second position, and the stop 13 always tends to rotate towards the first position under the elastic force of the compression spring 143, so that the second limiting surface 132 abuts against the first limiting surface 126; when the cabinet door 200 is closed, the latch 2 drives the lock hook 12 to turn to the first locking position, and the first limiting surface 126 moves relative to the second limiting surface 132. When the opening of the first opening groove 125 is opposite to and connected to the opening of the second opening groove 131, the first limiting surface 126 and the second limiting surface 132 are just separated. Under the elastic force of the compression spring 143, the stop 13 turns to the first position, and at the same time, the second hook 165 extends into the first opening groove 125 and the third hook 166 extends into the second opening groove 131. In other embodiments, the electromagnetic lock 300 further includes a torsion spring connected to the stop 13, which is used to ensure that the stop 13 always has a tendency to rotate toward the first position.

[0086] Alternatively, please refer to Figures 3 to 7 The lock body 1 also includes an emergency lever 18. One end of the emergency lever 18 is fixedly connected to the stop 13, and the other end extends to the outside of the housing 11 and to the top of the cabinet via a connecting rod. When the electromagnet 14 cannot work due to power failure or other reasons, the emergency lever 18 can be moved by manually pulling the connecting rod, which in turn drives the stop 13 to rotate, allowing the stop 13 to rotate between a first position and a second position. Specifically, when the power is off and the cabinet door 200 is closed, first ensure that the lock hook 12 is in the first locking position, then pull the connecting rod to move the emergency lever 18, and drive the stop 13 to turn to the second position via the emergency lever 18. The abutment part 127 separates from the blocking part 133. Under the action of the elastic member 15, the elastic member 15 drives the lock hook 12 to turn to the unlocking position, and the lock hook 12 pushes the latch 2 to move outward until the lock hook 12 separates from the latch 2. The latch 2 causes the cabinet door 200 to pop open, realizing the opening of the cabinet door 200 under power failure.

[0087] Alternatively, please refer to Figures 11 to 13The first opening groove 125 is formed in the locking hook body 129 and extends along the rotation axis of the locking hook 12. The depth of the first opening groove 125 is less than the thickness of the locking hook body 129. And / or, the stop member 13 includes a stop body 135, and a second opening groove 131 is formed in the stop body 135 and extends along the rotation axis of the stop member 13. The depth of the second opening groove 131 is less than the thickness of the stop body 135. This arrangement enhances the structural strength of the second hook 165 and the third hook 166, ensuring the reliability of the interlocking of the lock hook 12 and the stop 13. In addition, the depths of the first opening groove 125 and the second opening groove 131 extend along the rotation axis of the lock hook 12, so that when the stop 13 is engaged with the lock hook 12 (including the case where the lock hook 12 is in the first locking position and the second locking position), the partial structures of the stop 13 and the lock hook 12 are interlaced along the rotation axis of the lock hook 12, making the structure more compact. Therefore, it also reduces the structural dimensions of the lock body 1 along the rotation axis of the lock hook 12.

[0088] Alternatively, please refer to Figures 3 to 7 The lock body 1 also includes a limiting post 17, which is fixedly installed inside the housing 11. When the lock hook 12 is in the unlocked position, the lock hook 12 abuts against the limiting post 17 under the elastic force of the elastic element 15. By setting the limiting post 17 and the elastic element 15, it is ensured that the lock hook 12 can be accurately and stably located in the unlocked position after unlocking, so that the opening of the lock groove 123 of the lock hook 12 is opposite to and connected to the opening of the guide groove 115 on the housing 11, which facilitates the smooth entry of the latch 2 into the lock groove 123 and engagement with the lock hook 12 when the door is closed.

[0089] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. An electromagnetic lock, characterized in that, The electromagnetic lock includes a lock body (1) and a latch (2); The lock body (1) includes a housing (11), a lock hook (12), a stop (13), and an electromagnet (14). The lock hook (12) and the stop (13) are rotatably mounted inside the housing (11). The lock hook (12) can rotate relative to the housing (11) to have a first locked position, a second locked position, and an unlocked position. The stop (13) can rotate relative to the housing (11) to have a first position and a second position. The electromagnet (14) is mounted inside the housing (11) and is used to drive the stop (13) to rotate between the first position and the second position. When the locking hook (12) is in the first locking position and the stop (13) is in the first position, the locking hook (12) engages with the latch (2), and the stop (13) abuts against the locking hook (12) to prevent the locking hook (12) from turning to the unlocking position; When the locking hook (12) is in the first locking position, the stop (13) is in the first position, and the latch (2) is pushed by an external force, the latch (2) can drive the locking hook (12) to turn to the second locking position, and the locking hook (12) in the second locking position is engaged with the stop (13) and prevents the stop (13) from turning to the second position; When the stop (13) is in the second position, the lock hook (12) can rotate to the unlock position where it is separated from the latch (2).

2. The electromagnetic lock according to claim 1, characterized in that, The locking hook (12) includes a first wall (121) and a second wall (122) that are opposite to each other and spaced apart, and a locking groove (123) with an opening is formed between the first wall (121) and the second wall (122); When the locking hook (12) is in the first locking position and the stop (13) is in the first position, the latch (2) is located in the locking groove (123), and the first wall (121) is used to prevent the latch (2) from exiting the locking groove (123); When the locking hook (12) is in the first locking position, the stop (13) is in the first position, and the latch (2) is pushed by an external force, the latch (2) can abut against the second wall (122), and the latch (2) drives the locking hook (12) in the first locking position to turn to the second locking position in the first direction, and makes the locking hook (12) engage with the stop (13).

3. The electromagnetic lock according to claim 2, characterized in that, The locking hook (12) includes a first connecting part and an abutting part (127), and the stop (13) includes a second connecting part and a blocking part (133). The first connecting part is one of a first hook part (161) and a plug-in part (164), and the second connecting part is the other of the first hook part (161) and the plug-in part (164). The first hook part (161) is provided with a first slot (167). When the stop (13) is in the first position and the lock hook (12) is in the first locked position, the blocking part (133) abuts against the abutting part (127) to prevent the lock hook (12) from turning to the unlocked position in the second direction, and the insertion part (164) is spaced apart from the first slot (167), the first direction being opposite to the second direction; When the locking hook (12) is in the first locking position, the stop (13) is in the first position and the latch (2) is pushed by an external force, the locking hook (12) in the first locking position turns to the second locking position along the first direction, and the blocking part (133) separates from the abutting part (127); When the locking hook (12) is in the second locking position and the stop (13) is in the first position, the insertion part (164) is inserted into the first slot (167) and prevents the stop (13) from turning to the second position.

4. The electromagnetic lock according to claim 3, characterized in that, The locking hook (12) further includes a locking hook body (129) rotatably connected to the housing (11). The first hook portion (161) includes a first hook body (162) and a first hook head (163). The first end of the first hook body (162) is fixedly connected to the locking hook body (129). The second end of the first hook body (162) extends away from the locking hook body (129). The first hook head (163) is connected to the second end of the first hook body (162), and a first slot (167) is formed between the first hook head (163) and the locking hook body (129). The abutment portion (127) is disposed on the side of the first hook body (162) away from the first slot (167). The insertion portion (164) is connected to the stop member (13). When the locking hook (12) is in the second locking position and the stop (13) is in the first position, the first hook head (163) is located downstream of the plug (164) and prevents the stop (13) from turning to the second position along the direction of the stop (13) from the first position to the second position.

5. The electromagnetic lock according to claim 2, characterized in that, The locking hook (12) includes a second hook portion (165) and an abutment portion (127), and the stop member (13) includes a third hook portion (166) and a blocking portion (133). The second hook portion (165) includes a second hook head (169) and a second slot (170), and the third hook portion (166) includes a third hook head (172) and a third slot (173). When the stop (13) is in the first position and the lock hook (12) is in the first locked position, the blocking part (133) abuts against the abutting part (127) to prevent the lock hook (12) from turning to the unlocked position in the second direction, and the second hook part (165) and the third hook part (166) are arranged at a distance from each other. When the locking hook (12) is in the first locking position, the stop (13) is in the first position and the latch (2) is pushed by an external force, the locking hook (12) in the first locking position turns to the second locking position along the first direction, and the blocking part (133) separates from the abutting part (127), and the first direction is opposite to the second direction; When the locking hook (12) is in the second locking position and the stop (13) is in the first position, the second hook head (169) is inserted into the third slot (173), the third hook head (172) is inserted into the second slot (170), and the stop (13) is prevented from turning to the second position.

6. The electromagnetic lock according to claim 5, characterized in that, The locking hook (12) is provided with a first opening groove (125), and the stop member (13) is provided with a second opening groove (131). Both the first opening groove (125) and the second opening groove (131) have openings. The second hook part (165) is disposed in the first opening groove (125). The blocking part (133) and the third hook part (166) are respectively disposed on two opposite side walls of the second opening groove (131). When the locking hook (12) is located in the first locking position and the stop member (13) is located in the first position, the opening of the first opening groove (125) is opposite to and communicates with the opening of the second opening groove (131). The third hook part (166) extends into the first opening groove (125) and the second hook part (165) extends into the second opening groove (131).

7. The electromagnetic lock according to claim 6, characterized in that, The locking hook (12) is provided with a first limiting surface (126), which is an arc surface with the rotation center of the locking hook (12) as the center, and the opening of the first opening groove (125) is opened on the first limiting surface (126); the stop member (13) is provided with a second limiting surface (132), which is an arc surface, and the radius of the second limiting surface (132) is adapted to the radius of the first limiting surface (126), and the opening of the second opening groove (131) is opened on the second limiting surface (132); When the locking hook (12) is in the unlocked position and the stop (13) is in the second position, the first limiting surface (126) and the second limiting surface (132) cooperate.

8. The electromagnetic lock according to claim 6, characterized in that, The locking hook (12) includes a locking hook body (129), a first opening groove (125) is formed in the locking hook body (129) and extends along the rotation axis of the locking hook (12), the depth of the first opening groove (125) is less than the thickness of the locking hook body (129); and / or, The stop (13) includes a stop body (135), and the second opening groove (131) is formed in the stop body (135) along the extension direction of the rotation axis of the stop (13). The depth of the second opening groove (131) is less than the thickness of the stop body (135).

9. The electromagnetic lock according to any one of claims 1-8, characterized in that, The lock body (1) also includes a limiting post (17) and an elastic element (15). The limiting post (17) is fixedly installed inside the housing (11). The elastic element (15) is connected to the lock hook (12). The elastic force of the elastic element (15) makes the lock hook (12) always tend to rotate toward the unlock position. When the lock hook (12) is in the unlock position, the lock hook (12) abuts against the limiting post (17) under the elastic force of the elastic element (15).

10. A storage cabinet, characterized in that, The locker includes a cabinet body (100), a cabinet door (200), and an electromagnetic lock as described in any one of claims 1-9. The cabinet body (100) has an opening (201), the cabinet door (200) is pivotally connected to the cabinet body (100), and the cabinet door (200) can rotate relative to the cabinet body (100) to open or close the opening (201). The lock body (1) is disposed on one of the cabinet body (100) and the cabinet door (200), and the latch (2) is disposed on the other of the cabinet body (100) and the cabinet door (200). When the cabinet door (200) closes the opening (201), the latch (2) engages with the latch (12).

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