Electromagnetic lock and locker
The electromagnetic lock with a shock protection element addresses the issue of poor vibration resistance in existing locks by ensuring the locking hook remains locked during disturbances, enhancing security and reliability.
Patent Information
- Application Number
- EP2024188484
- Authority / Receiving Office
- EP · EP
- Patent Type
- Patents
- Current Assignee / Owner
- Priority Date
- 2023-07-14
- Filing Date
- 2024-07-12
- Publication Date
- 2025-11-05
- Estimated Expiration
- 2044-07-12
AI Technical Summary
Existing electromagnetic locks in lockers suffer from poor vibration resistance, leading to security vulnerabilities due to unwanted unlocking when subjected to external disturbances.
An electromagnetic lock design featuring a locking hook, locking element, electromagnet, and shock protection element within a housing, where the shock protection element prevents the locking element from rotating to an unlocking position during vibrations, ensuring the locking hook remains in the locked position.
Enhances the vibration protection properties of the electromagnetic lock, preventing unwanted unlocking during external disturbances, thereby improving security and reliability.
Smart Images

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Abstract
Description
Technical field
[0001] The present invention relates to the technical field of logistics devices, in particular an electromagnetic lock and a locker. State of the art
[0002] With the increasing level of automation in all industries and sectors, the use of lockers is becoming ever more widespread. For example, lockers can be installed in office or residential areas to store express deliveries or letters and newspapers; lockers can be installed in supermarkets to store personal belongings; and lockers can be installed at tourist attractions or on shopping streets to sell goods on a self-service basis. Such lockers are known, for example, from WO 2014 / 176619 A1, US 5 172 970 A, or JP 2005-240459 A.
[0003] In the prior art, the locker body is equipped with an electromagnetic lock, and the locker door is fitted with a latch. When the locker door is closed, the electromagnetic lock and the latch work together to lock the locker door. Specifically, the electromagnetic lock comprises a locking hook and an electromagnet driven by the locking hook. The locking hook, driven by the electromagnet, has a locking position and an unlocking position. When the locking hook is in the locking position, it and the latch are clamped together, thus locking the locker door. When the locking hook is in the unlocking position, it is disengaged from the latch, and the locker door is open.The electromagnet comprises a cylindrical coil, an armature, and an elastic element. The elastic element is connected to the armature, and the armature is driven by a locking hook. When the current to the cylindrical coil is interrupted, the armature extends due to the elasticity of the elastic element, driving the locking hook into the locked position. When current flows through the cylindrical coil, a magnetic force attracts the armature, causing it to retract over its elasticity. This engages the locking hook, driving it into the unlocked position. This type of electromagnetic locking mechanism relies on the elasticity of the elastic element to hold the locking hook in the locked position.However, as soon as the locker door experiences a vibration and the lock causes the locking hook to rotate, the locking hook forces the anchor to retract, overcoming the elasticity of the flexible part, resulting in an unwanted unlocking. Therefore, such an electromagnetic lock has relatively poor vibration resistance properties, leading to relatively low security for the locker.
[0004] Based on this, the object of the invention is to provide an electromagnetic lock and a locker that have improved shock protection and security properties.
[0005] This problem is solved by the features of the independent patent claims. Preferred further developments are found in the dependent claims.
[0006] According to the invention, an electromagnetic lock is provided, wherein the electromagnetic lock comprises: a housing; a locking hook, wherein the locking hook is rotatably provided within the housing, wherein the locking hook can rotate relative to the housing and has a locking position and an unlocking position; a locking element, wherein the locking element is rotatably provided within the housing, wherein the locking element can rotate relative to the housing and has a first position and a second position, wherein the electromagnetic lock is designed such that a) when the locking element is in the first position, the locking element abuts the locking hook in the locked position and prevents the locking hook from rotating to the unlocked position, and b) when the locking element is in the second position, the locking hook can rotate to the unlocked position; an electromagnet, wherein the electromagnet is provided within the housing and is configured to drive the locking element to rotate between the first position and the second position; a shock protection element, wherein the shock protection element is rotatably provided within the housing, wherein the shock protection element can rotate relative to the housing and has a home position and an operating position, wherein the electromagnetic lock is configured such thatthat c) when the vibration protection part is in the initial position, the vibration protection part is separated from the locking part, and d) when the vibration protection part is in the operating position, the vibration protection part can prevent the locking part in the first position from rotating to the second position, e) when an external disturbance force drives the locking hook in the locking position to rotate in a set direction and separate from the locking part, the locking hook drives the vibration protection part in the initial position to rotate into the operating position, the set direction being the direction of rotation of the locking hook from the unlocked position to the locked position.
[0007] According to a preferred embodiment of the invention, the electromagnetic lock also comprises an elastic element connected between the housing and the shock protection part, wherein the elastic element serves to provide the shock protection part with elasticity to remain in the starting position.
[0008] According to a further preferred embodiment of the invention, the housing comprises a first housing part and a second housing part, wherein the first housing part and the second housing part are connected by a closure, wherein the electromagnetic lock further comprises a first support shaft, a second support shaft and a third support shaft, all of which are provided connected between the first housing and the second housing, wherein the first support shaft, the second support shaft and the third support shaft are provided parallel and spaced apart from each other.
[0009] According to a further preferred embodiment of the invention, the locking hook is connected to the first support shaft, the locking part is connected to the second support shaft, and the vibration protection part is connected to the third support shaft, wherein the elastic element is a torsion spring which is provided around the third support shaft, wherein a first torsion arm of the torsion spring is connected to the first support shaft or the second support shaft, while a second torsion arm of the torsion spring is connected to the vibration protection part.
[0010] According to a further preferred embodiment of the invention, it is provided that the center of gravity of the vibration protection part is positioned such that a force is provided to the vibration protection part to cause it to rotate to the initial position.
[0011] According to a further preferred embodiment of the invention, it is provided that when the vibration protection part is in the initial position, the vibration protection part can rest against the locking hook which is in the locking position.
[0012] According to a further preferred embodiment of the invention, the housing is provided to comprise a first wall and a second wall connected at an acute angle, wherein a gap is provided on the first wall, the gap serving to insert the closure into the housing in order to interact with the locking hook, wherein the shock protection element is attached at a position within the housing close to the connection point between the first wall and the said second wall.
[0013] According to a further preferred embodiment of the invention, the vibration protection element comprises a main body rotatably connected to the housing, as well as a blocking element and a push-off element, all of which are connected to the main body. When the locking hook is in the locking position, the locking element is in the first position, and the vibration protection element is in the initial position, the locking hook and the locking element abut each other and interact between the blocking element and the push-off element. Furthermore, when an external disturbance force drives the locking hook, which is in the locking position, to rotate in the set direction, the locking hook can have a connecting contact with the push-off element of the vibration protection element in the initial position and drives the vibration protection element to rotate into the operating position.wherein the blocking piece abuts the locking part in the first position and blocks rotation of the locking part to the second position.
[0014] According to a further preferred embodiment of the invention, the housing comprises a first wall, wherein a gap is provided on the first wall, the gap serving to insert the closure into the housing to interact with the locking hook, the push-off piece being located between the first wall and a first end of the locking hook, the first wall serving to limit the maximum angle of rotation of the shock protection part from the starting position to the operating position.
[0015] According to a further preferred embodiment of the invention, the blocking piece and the push-in piece are provided at an acute angle, wherein the acute angle between the blocking piece and the push-in piece is between 85° and 95°.
[0016] According to the invention, a locker is further provided, wherein the locker comprises a locker body, a locker door, a lock and the electromagnetic lock described above, wherein the locker body is provided with an opening, wherein the locker door is movably connected to the locker body, wherein the locker door serves to close or open the opening, wherein the lock is provided on one of the two, the locker door or the locker body, while the electromagnetic lock is provided on the other of the two, the locker door or the locker body, wherein, when the locker door closes the opening, the locking hook in the locking position and the lock interact and lock the position of the locker door.
[0017] The provided electromagnetic lock offers at least the following advantages: The electromagnetic lock comprises a housing, a locking hook, a locking element, an electromagnet, and a shock-absorbing element, wherein the locking hook, the locking element, the electromagnet, and the shock-absorbing element are all located within the housing, and wherein the locking hook, the locking element, and the shock-absorbing element are all rotatably connected to the housing. The locking hook is capable of rotation relative to the housing and has a locking position and an unlocking position, wherein the locking element is capable of rotation relative to the housing and has a first position and a second position, wherein when the locking element is in the first position,The locking element abuts the locking hook in the locked position and prevents the locking hook from rotating to the unlocked position, whereas when the locking element is in the second position, the locking hook can rotate to the unlocked position, the electromagnet serving to drive the locking element to rotate between the first position and the second position, the shock protection element being able to rotate relative to the housing and having a home position and an operating position, wherein when the shock protection element is in the home position, the shock protection element is separated from the locking element, whereas when the shock protection element is in the operating position, the shock protection element can prevent the locking element in the first position from rotating to the second position.wherein, when an external disturbance force drives the locking hook, which is in the locking position, to rotate in a set direction and separate from the locking part, the locking hook drives the vibration protection part, which is in the initial position, to rotate into the operating position, wherein the set direction is the direction of rotation of the locking hook from the unlocking position to the locking position.
[0018] The vibration protection element can now prevent the locking element in the first position from rotating to the second position, thus ensuring that the locking element always remains in the first position. This means that when the external disturbance force is removed, the locking element reliably locks the position of the locking hook, resulting in an effective improvement in the vibration protection properties of the electromagnetic lock.
[0019] The provided locker offers at least the following advantages: The locker in question comprises a locker body, a locker door, a latch, and an electromagnetic lock, wherein the locker body is provided with an opening, wherein the locker door is movably connected to the locker body, wherein the locker door serves to close or open the opening, wherein the latch is provided on one of the two, the locker door or the locker body, while the electromagnetic lock is provided on the other of the two, the locker door or the locker body, wherein, when the locker door closes said opening, the locking hook in the locking position and the latch interact and lock the position of the locker door.
[0020] Thus, when the locker door closes the opening and the locking hook of the electromagnetic lock engages with the lock, the locking hook can still engage with the lock even in unforeseen circumstances such as bumping or pulling on the locker door, without the problem of unwanted unlocking occurring, thereby ensuring the security of the items stored in the locker and improving the security features of the locker. Explanation of the figures
[0021] Figure 1 shows a schematic representation of the construction of a locker according to an exemplary embodiment of the invention. Figure 2 shows a schematic representation of the construction when an electromagnetic lock and a closure interact according to an exemplary embodiment of the invention. Figure 3shows an exploded view of the electromagnetic lock according to an exemplary embodiment of the invention. Figure 4 Figure 1 shows a schematic representation of the construction with the locking hook of the electromagnetic lock in the locking position, the locking part in the first position and the vibration protection part in the starting position according to an exemplary embodiment of the invention. Figure 5 shows a schematic representation of the construction when the locking hook of the electromagnetic lock is rotated under the influence of an external interfering force in the set direction according to an exemplary embodiment of the invention. Figure 6Figure 1 shows a schematic representation of the construction with the locking hook of the electromagnetic lock in the unlocking position, the locking part in the second position, and the vibration protection part in the operating position, according to an exemplary embodiment of the invention. Figure 7 shows a schematic representation of the construction of the closure according to an exemplary embodiment of the invention. Figure 8 shows a schematic representation of the construction of the vibration protection part according to an exemplary embodiment of the invention. Reference symbol:
[0022] 10. Locker body, 101. Opening, 20. Locker door, 30. Latch, 301. Rod, 302. Connecting bracket, 40. Electromagnetic lock, 1. Housing, 11. First housing, 111. First side plate, 112. First rebate edge, 12. Second housing, 121. Second side plate, 122. Second rebate edge, 123. First through-hole, 124. Second through-hole, 13. First support shaft, 14. Second support shaft, 15. Third support shaft, 16. Gap, 17. First wall, 18. Second wall, 2. Locking hook, 21. Opening clamp groove, 3. Locking part, 31. Locking part main body, 32. Emergency lever, 4. Electromagnet, 41. Coil, 42. Armature, 43. 5. Elastic part, 5. Shock protection part, 51. Main body, 52. Blocking piece, 53. Bump piece, 6. Locking hook spring, 7. Elastic element, 8. Top bar, 9. Top bar spring. Specific exemplary embodiments
[0023] The following is a clear and complete description of the technical concept of the invention according to a preferred embodiment, with reference to the accompanying figures. It is understood that the described exemplary embodiments represent only a portion of the embodiments of the invention and not all of them.
[0024] It should be noted that in the present description, the positions or positional relationships indicated by the terms "central," "top," "bottom," "left," "right," "vertical," "horizontal," "inside," "outside," etc., are based on the positions or positional relationships of the accompanying figures and serve only to facilitate and simplify the description of the exemplary embodiment, without explicitly or implicitly indicating that the devices or elements mentioned must necessarily have specific positions or be designed or operated in a particular position, so that no interpretation in this regard as a limitation of the present invention is permissible. Furthermore, the terms "first" and "second" serve only the purpose of description and do not explicitly or implicitly refer to their relative importance.The "first position" and the "second position" are two distinct positions. A first feature designated "above," "above," or "on top of" a second feature indicates that the first feature is positioned above or diagonally above the second feature, or simply expresses that the horizontal height of the first feature is higher than the second feature. A first feature designated "below," "below," or "under" a second feature indicates that the first feature is positioned below or diagonally below the second feature, or simply expresses that the horizontal height of the first feature is lower than the second feature.
[0025] It should be noted that, in the description of the present embodiment of the invention, unless otherwise clearly specified or defined, the terms "attached," "connected," or "connected" are to be understood in the broadest sense. For example, they may refer to a permanent connection, a detachable connection, a connection to a single piece, a mechanical connection, or an electrical connection, wherein the connection may be direct, via an intermediate medium, or by a continuous connection within two elements. A person skilled in the relevant technical field can understand the specific meanings of the aforementioned terms in the description based on the specific circumstances.
[0026] The following is a description of exemplary embodiments of the present invention, which are shown in the accompanying figures. Identical or similar reference numerals denote identical or similar elements or elements with identical or similar functions. The embodiments described below with reference to the accompanying figures are merely exemplary and serve only for illustrative purposes; they should not be interpreted as a limitation of the invention.
[0027] The present exemplary embodiment provides a locker for storing items and can be adapted to various applications as needed. Examples of such applications include: lockers can be installed in office or residential areas for storing express deliveries, letters, or newspapers; lockers can be installed in supermarkets or train stations for storing personal belongings; and lockers can be installed at tourist attractions or on shopping streets for self-service sales.
[0028] Specifically, the locker in question includes, as in Figure 1The figure shows a locker body 10, a locker door 20, a lock 30, and an electromagnetic lock 40. The locker body 10 is provided with an opening 101, and the locker door 20 is movably connected to the locker body 10. The locker door 20 serves to close or open the opening 101. The lock 30 is provided on either the locker door 20 or the locker body 10, while the electromagnetic lock 40 is provided on either the locker door 20 or the locker body 10. When the locker door 20 closes the opening 101, the locking hook 2 of the electromagnetic lock 40, which is in the locking position, and the lock 30 interact and lock the locker door 20 in the position with the opening 101 closed.When the locking hook 2 of the electromagnetic lock 40 is in the unlocked position, the latch 30 can be disengaged from the locking hook 2, and the locker door can open the opening 101. When the locker door 20 opens the opening 101, the user can remove items from or place items in the locker body 10 through the opening 101. When the locker door 20 closes the opening 101 and the locking hook 2 of the electromagnetic lock 40 engages with the latch 30, items can be securely stored within the locker body 10. The present exemplary embodiment describes a design in which the latch 30 is located on the locker door 20 and the electromagnetic lock 40 is located on the locker body 10.In other exemplary embodiments, the closure 30 can be provided on the locker body 10 and the electromagnetic lock 40 on the locker door 20.
[0029] Optionally, in the present exemplary embodiment, the locker comprises several locker bodies 10 and several locker doors 20, wherein the several locker doors 20 are movably connected one-to-one to the several locker bodies 10, and wherein the several locker bodies 10 are arranged in M vertical rows and N horizontal rows. In the present exemplary embodiment, a design with 2 vertical rows and 11 horizontal rows of locker bodies 10 is shown by way of example, wherein several locker bodies 10 are provided as a whole, whereas in other exemplary embodiments these can be provided according to the specific requirements.Furthermore, in the present exemplary embodiment, the locker comprises several locks 30 and several electromagnetic locks 40, wherein the several locks 30 are provided one-to-one on the several locker doors 20, while the several electromagnetic locks 40 are provided one-to-one on the several locker bodies 10. The several locks 30 can interact one-to-one with the several electromagnetic locks 40, just as it can be provided that a lock 30 is provided on some of the locker doors 20, wherein an electromagnetic lock 40 is provided on some of the locker bodies 10, while an electromagnetic lock 40 is provided on other parts of the locker doors 20, wherein a lock 30 is provided on other parts of the locker bodies 10.
[0030] Optionally, in the present exemplary embodiment, the locker door 20 and the locker body 10 are connected by a hinge. It is understood that in other exemplary embodiments a sliding connection between the locker door 20 and the locker body 10 may also be provided, so no restriction is imposed in this respect here.
[0031] As in the Figures 3 to 6As shown, the electromagnetic lock 40 comprises a housing 1, a locking hook 2, a locking element 3, an electromagnet 4, and a vibration damping element 5, wherein the housing 1 is attached to the locker door 20, while the locking hook 2, the locking element 3, the electromagnet 4, and the vibration damping element 5 are all located within the housing 1, the locking hook 2, the locking element 3, and the vibration damping element 5 being rotatably connected to the housing 1. The locking hook 2 can rotate relative to the housing 1 and has a locking position and an unlocking position. The locking element 3 can rotate relative to the housing 1 and has a first position and a second position, wherein, when the locking element 3 is in the first position,The locking element 3 abuts the locking hook 2, which is in the locked position, and prevents the locking hook 2 from rotating to the unlocked position. However, when the locking element 3 is in the second position, the locking hook 2 can rotate to the unlocked position. The electromagnet 4 serves to drive the locking element 3 to rotate between the first and second positions. The shock absorber 5 can rotate relative to the housing 1 and has a home position and an operating position. When the shock absorber 5 is in the home position, it is separated from the locking element 3. When the shock absorber 5 is in the operating position,The vibration protection element 5 can prevent the locking element 3, which is in the first position, from rotating to the second position, wherein, if an external disturbance force drives the locking hook 2, which is in the locking position, to rotate in the set direction and separate from the locking element 3, the locking hook 2 drives the vibration protection element 5, which is in the initial position, to rotate into the operating position, wherein the set direction is the direction of rotation of the locking hook 2 from the unlocked position to the locked position.
[0032] In the electromagnetic lock 40 according to the present exemplary embodiment, the vibration protection element 5, rotatably provided within the housing 1, prevents the locking hook 2, which is in the locking position, from rotating to the second position when it rotates in the set direction and separates from the locking part 3. This ensures that the locking part 3 always remains in the first position and can reliably lock the position of the locking hook 2 when the vibration ceases. This avoids the problem of unwanted unlocking due to vibration, thus effectively improving the vibration protection properties of the electromagnetic lock.
[0033] It should be noted that an external disturbance force can manifest as pulling on or pushing against the locker door 20 and / or the locker body 10, which leads to a vibration of the electromagnetic lock 40 and / or the latch 30 and causes the locking hook 2 in the locked position to rotate in the set direction (which is in Figure 5(with arrow indicating direction) and is separated from the locking part 3. Specifically, using the example of an impact against the locker door 20, it is provided that in such an impact, the locker door 20 moves relative to the locker body 10, with the locker door 20 simultaneously moving the locking mechanism 30 synchronously, while the relative positions of housing 1 to locker body 10 remain unchanged. During an impact against the locker door 20, the locking mechanism 30 continues to exert a force on the locking hook 2 (in Figure 5 (as shown in F) and drives the locking hook 2, which is in the locking position, to rotate in the set direction and separate from the locking part 3.
[0034] It should be noted that if the locking hook 2 is in the locked position and the locking part 3 is in the first position, and an external disturbance force causes the locking hook 2 to rotate in a direction opposite to its set direction (i.e., from the locked position to the unlocked position), the locking part 3 abuts the locking hook 2 and prevents it from rotating back into the locked position. Thus, the locking hook 2 remains in the locked position, meaning that the external disturbance force only causes the locking hook 2 to rotate in the set direction and separate from the locking part 3.
[0035] Specifically, in the present exemplary embodiment, as shown in Figure 3 and Figure 7As shown, the locking hook 2 is provided with an opening clamping groove 21, which serves for the clamping connection and interaction with the closure 30, wherein the closure 30 comprises a rod 301, wherein, when the closure 30 is in the locking position and interacts with the locking hook 2, the rod 301 is located within the opening clamping groove 21, wherein the opening direction of the opening clamping groove 21 is perpendicular to the direction of movement of the closure 30, so that it is impossible for the rod 301 to leave the opening clamping groove 21. When the locking hook 2 is in the unlocked position, the opening of the opening clamping groove 21 of the locking hook 2 points to the gap 16 of the housing 1, with the rod 301 exiting the opening clamping groove 21 and the gap 16 provided on the housing 1 successively through the opening clamping groove 21 and the housing 1.If the electromagnetic lock 40 is subjected to vibration by an external disturbance force, the rod 301 strikes the wall of the opening clamping groove 21 and can cause the locking hook 2 to rotate in the set direction and separate from the locking part 3.
[0036] Optional, as in the Figures 3 to 6As shown, the electromagnetic lock 40 is provided to also include a locking hook spring 6, wherein the locking hook spring 6 serves to always cause the locking hook 2 to tend to rotate towards the unlocked position, and wherein, as soon as the locking part 3 leaves the first position, the locking hook 2 rotates towards the unlocked position under the action of the locking hook spring 6. This ensures that when the locker door 20 closes the opening 101 and the electromagnetic lock 40 and the latch 30 interact, the locking part 3 is driven by the electromagnet 4 to move into the second position, and the locking hook 2 is automatically rotated from the locked position to the unlocked position under the action of the locking hook spring 6, thus achieving automatic unlocking.In other exemplary embodiments, the position of the center of gravity of the locking hook 2 is provided such that the locking hook 2 is always caused to have a tendency to rotate towards the locking position.
[0037] Optional, as in the Figures 3 to 6The electromagnetic lock 40 is shown to comprise a top bar 8 and a top bar spring 9 located between the top bar 8 and the housing 1. One end of the top bar 8 is located within the housing 1 and slides against it, while the other end of the top bar 8 projects from the housing 1. The top bar spring 9 provides elasticity for the top bar 8 to project from the housing 1. The lock 30 also comprises a connecting bracket 302 connected to the bar 301. The connecting bracket 302 serves for mounting the lock on the locker door 20. During the closing of the opening 101 by the locker door 20, the connecting bracket 302 makes contact with the top bar 8 and pushes the top bar 8, compressing the top bar spring 9.This creates a buffering effect for the locker door 20 and prevents hard contact between the locker door 20 and the locker body 10, which can also reduce noise. When the locker door 20 opens the opening 101, the rotation of the locking hook 2 to the unlocking position, due to the elasticity of the top rod spring 9, drives the top rod 8 to exert pressure on the connecting bracket 302, thus automatically opening the locker door 20, which is convenient to use. In the present exemplary embodiment, a compression spring is used for the top rod spring 9.
[0038] Optionally, when the vibration protection element 5 is in its initial position, it rests against the locking hook 2, which is in the locked position. If an external disturbance force drives the locking hook 2, which is in the locked position, to rotate in the set direction, the locking hook 2 synchronously drives the vibration protection element 5, which is in its initial position, to rotate into the operating position, thus ensuring a sensitive response of the vibration protection element 5. It is understood that in other exemplary embodiments, a very small gap may be provided between the vibration protection element 5 in its initial position and the locking hook 2 in its locked position.
[0039] Optional, as in the Figures 3 to 6As shown, in the present exemplary embodiment, the electromagnetic lock 40 also includes an elastic element 7 connected between the housing 1 and the vibration protection element 5. The elastic element 7 serves to provide the vibration protection element 5 with elasticity, enabling it to remain in its initial position. This ensures that the vibration protection element 5 remains stable in its initial position when no external disturbance force is present, thus preventing any disruption of the regular unlocking process caused by irregular rotation of the vibration protection element 5, as well as the generation of noise. Furthermore, after the external disturbance ceases, the rotation from the operating position to the initial position can occur automatically.
[0040] In an alternative design, the center of gravity of the vibration protection element 5 can be positioned such that a force is provided to the vibration protection element 5 to cause it to rotate to the aforementioned initial position. This also ensures that the vibration protection element 5 remains stable in the initial position when no external disturbance force is present, with the rotation from the operating position to the initial position occurring automatically after the external disturbance ceases.
[0041] Optionally, the housing 1 is provided with a position limiting element (not shown in the figures), wherein the vibration protection element 5, after rotation to the initial position under the influence of the elastic element 7 or gravity, abuts the position limiting element, whereby the position limiting element prevents further rotation of the vibration protection element 5, which improves the stability of the vibration protection element 5 remaining in the initial position.
[0042] Optional, as in the Figures 3 to 6As shown, in the present exemplary embodiment, the housing 1 comprises a first housing part 11 and a second housing part 12, as well as a first support shaft 13, a second support shaft 14 and a third support shaft 15, all of which are connected between the first housing part 11 and the second housing part 12, wherein the first support shaft 13, the second support shaft 14 and the third support shaft 15 are arranged parallel to each other at a distance from one another, wherein the locking hook 2 is connected to the first support shaft 13 and can rotate about the first support shaft 13, wherein the locking part 3 is connected to the second support shaft 14 and can rotate about the second support shaft 14, and wherein the vibration protection part 5 is connected to the third support shaft 15 and can rotate about the third support shaft 15.The elastic element 7 is a torsion spring arranged around the third support shaft 15, wherein the first torsion arm of the torsion spring is connected to the first support shaft 13 or the second support shaft 14, while the second torsion arm of the torsion spring is connected to the vibration protection element 5. This allows for both a more compact and a more stable design of the electromagnetic lock 40. In other exemplary embodiments, the elastic element 7 can alternatively be a tension spring or a compression spring.
[0043] Optional, as in Figure 3As shown, in the present exemplary embodiment, the first end of the first support shaft 13, the second support shaft 14 and the third support shaft 15 is each connected to the first housing part 11 by rivets, wherein the second end of at least two of the three support shafts is provided with a threaded hole in order to establish the screw connection with the threaded hole by means of fastening elements such as screws etc. through the second housing part 12, which facilitates assembly and disassembly.In the present exemplary embodiment, a design is described in which the second end of the first support shaft 13 and the second support shaft 14 is each provided with a threaded hole, and a first through-hole 123 is provided on the second housing part 12 corresponding to the first support shaft 13 and the second support shaft 14, and two screws are each guided through the two first through-holes 123 and connected to the two threads of the second ends of the first support shaft 13 and the second support shaft 14. Specifically, it is provided that the first housing part 11 comprises a first side plate 111, while the second housing part 12 comprises a second side plate 121, the first side plate 111 and the second side plate 121 being positioned opposite each other at a distance from one another.The first end of the first support shaft 13, the second support shaft 14, and the third support shaft 15 is each connected to the first side plate 111 by rivets, with the two first through-holes 123 being provided on the second side plate 121. Optionally, the second end of one of the support shafts—first support shaft 13, second support shaft 14, or third support shaft 15—can have a plug connection with the second housing part 12, which further improves the ease of assembly and disassembly. In the present exemplary embodiment, a design is described in which the third support shaft 15 has a plug connection with the second housing part 12.Specifically, the second side plate 121 is provided with a second through-hole 124, wherein the second end of the third support shaft 15 has a protruding plug cylinder and wherein the inner diameter of the second through-hole 124 is smaller than the outer diameter of the third support shaft 15, so that the plug cylinder can be inserted into the second through-hole 124.
[0044] Optional, as in the Figures 2 to 4 shown, provided that the housing 1 is connected at an acute angle and comprises a first wall 17 and a second wall 18, wherein a gap 16 is provided in the first wall 17, the gap 16 serving to insert the closure 30 into the housing 1 in order to interact with the locking hook 2, wherein the vibration protection part 5 is attached at a position inside the housing 1 near the connection point between the first wall 17 and the second wall 18.
[0045] This allows for a more compact construction of the electromagnetic lock 40, which has a positive effect on a miniaturized design of the electromagnetic lock 40. Specifically, it is provided that the first side plate 111 and the second side plate 121 each have a square shape, wherein the first housing 11 also includes four first folding edges 112, which are connected at an acute angle to the four edges of the first side plate 111, and wherein the second housing part 12 also includes four second folding edges 122, which are connected at an acute angle to the four edges of the second side plate 121.The four first fold edges 112 are opposite the four second fold edges 122 one to one, with one pair of first fold edge 112 and second fold edge 122 forming the first wall 17, while the adjacent pair of first fold edge 112 and second fold edge 122 forming the second wall 18.
[0046] Optional, as in the Figures 3 to 6 as in Figure 8The vibration protection element 5 is shown to comprise a main body 51 rotatably connected to the housing 1, as well as a blocking piece 52 and a push-off piece 53, all of which are connected to the main body 51. When the locking hook 2 is in the locking position, the locking part 3 is in the first position, and the vibration protection element 5 is in the initial position, the locking hook 2 and the locking part 3 abut and interact between the blocking piece 52 and the push-off piece 53. When an external disturbance force drives the locking hook 2, which is in the locking position, to rotate in the set direction, the locking hook 2 can have a connecting contact with the push-off piece 53 of the vibration protection element 5 in the initial position, and drives the vibration protection element 5 to rotate into the operating position.wherein the blocking piece 52 abuts the locking part 3 in the first position and blocks rotation of the locking part 3 to the second position. Thus, the vibration protection part 5 can be coupled to the locking hook 2 by the bumper piece 53 and interact with the locking part 3 via the blocking piece 52, which represents a simple design.
[0047] Optionally, the bumper 53 is located between the first wall 17 and the first end of the locking hook 2, the first wall 17 serving to limit the maximum angle of rotation of the vibration protection element 5 from the initial position to the operating position. Specifically, in the present exemplary embodiment, the first wall 17 can abut the bumper 53 to limit the maximum angle of rotation of the vibration protection element 5 from the initial position to the operating position. When the vibration protection element 5 rotates from the initial position to the operating position, abutting the first wall 17, the first wall 17 limits further rotation of the vibration protection element 5, thus ensuring that the blocking element 52 reliably blocks rotation of the locking element 3 from the first position to the second position.The load on the locking hook 2 can now be transferred to the first wall 17 via the vibration protection element 5. Furthermore, the blocking piece 52 and the impact piece 53 are arranged at an acute angle, with the acute angle between the blocking piece 52 and the impact piece 53 being between 85° and 95°. Specifically, the acute angle between the blocking piece 52 and the impact piece 53 can be 85°, 86°, 87°, 88°, 89°, 90°, 91°, 92°, 93°, 94°, or 95°.
[0048] It should be noted that after the vibration protection element 5 has left its initial position, it is assumed to be in the operating position, provided that the blocking element 52 can prevent the locking element 3 from leaving the initial position. The impact element 53 of the vibration protection element 5 can now abut the first wall 17, and there may also be a certain gap between it and the first wall 17.
[0049] Optional, as in the Figures 3 to 6The electromagnet 4 is shown to comprise a coil 41, an armature 42, and an elastic part 43, the elastic part 43 being connected to the armature 42, while the armature 42 is actuated by the locking part 3. When the coil 41 is de-energized, the armature 42 extends due to the elasticity of the elastic part 43, the locking part 3 is actuated and is in the first position. When the coil 41 is energized, a magnetic force is generated, attracting the armature 42, causing the armature 42 to retract over the elasticity of the elastic part 43, the locking part 3 is actuated and is in the second position. Optionally, one end of the locking part 3 protrudes from the housing 1, serving to actuate the emergency release by pulling it in the event of a power interruption.The central part of the locking element 3 is rotatably connected to the housing 1, and the connection point between the armature 42 and the locking element 3 is located between the central part of the locking element 3 and the projecting end of the locking element 3. Extending and retracting the armature 42 can cause the locking element 3 to rotate about its axis of rotation between the first and second positions. Specifically, the locking element 3 comprises a locking element main body 31 and an emergency lever 32 connected to the locking element main body 31, with one end of the emergency lever 32 projecting from the housing 1. The locking element main body 31 is located within the housing 1 and is rotatably connected to it. The armature 42 is connected to the emergency lever 32, with the connection point between the armature 42 and the emergency lever 32 located within the housing 1.In the present exemplary embodiment, a compression spring is used as an example for the elastic part 43.
[0050] It is understood that the described embodiments of the invention are merely illustrative examples and do not imply any limitation of the present invention. A person skilled in the relevant technical field may, based on the present description, devise further modifications or alterations of various forms. It is neither necessary nor possible to list all exemplary embodiments here. All modifications, equivalent substitutions, improvements, etc., derived from the idea and principle of the present invention are covered by the scope of protection of the claims. Reference numeral list (sorted in ascending order)
[0051] 1. Housing, 2. Locking hook, 3. Locking part, 4. Electromagnet, 5. Shock absorber, 6. Locking hook spring, 7. Elastic element, 8. Top bar, 9. Top bar spring, 10. Locker body, 11. First housing part, 12. Second housing part, 13. First support shaft, 14. Second support shaft, 15. Third support shaft, 16. Gap, 17. First wall, 18. Second wall, 20. Locker door, 21. Opening clamping groove, 30. Latch, 31. Locking part main body, 32. Emergency lever, 40. Electromagnetic lock, 41. Coil, 42. Armature, 43. Elastic part, 51. Main body, 52. Blocking piece, 53. Bump piece, 101. Opening 111. First side plate, 112. First fold edge, 121. Second side plate, 122. Second fold edge, 123. First feed-through opening, 124. Second feed-through opening, 301. Rod, 302. Connecting bracket
Claims
1. Electromagnetic lock (40) comprising: a housing (1); a locking hook (2), wherein the locking hook (2) is provided rotatably within the housing (1), wherein the locking hook (2) can perform a rotation relative to the housing (1) and has a locking position and an unlocking position; a locking part (3), wherein the locking part (3) is provided rotatably within the housing (1), wherein the locking part (3) can perform a rotation relative to the housing (1) and has a first position and a second position, wherein the electromagnetic lock is designed in such a way that a) when the locking part (3) is situated in the first position, the locking part (3) abuts the locking hook (2), situated in the locking position, and prevents a rotation of the locking hook (2) to the unlocking position, and b) when the locking part (3) is situated in the second position, the locking hook (2) can perform a rotation to the unlocking position; an electromagnet (4), wherein the electromagnet (4) is provided within the housing (1) and is designed to drive the locking part (3) for rotation between the first position and the second position; characterized in that the electromagnetic lock further comprises: a vibration protection part (5), wherein the vibration protection part (5) is provided rotatably within the housing (1), wherein the vibration protection part (5) can perform a rotation relative to the housing (1) and has a starting position and an operating position, wherein the electromagnetic lock is designed in such a way that c) when the vibration protection part (5) is situated in the starting position, the vibration protection part (5) is separated from the locking part (3), and d) when the vibration protection part (5) is situated in the operating position, the vibration protection part (5) can prevent a rotation of the locking part (3), situated in the first position, to the second position, e) if an external interference force drives the locking hook (2), situated in the locking position, for rotation in a set direction and separation from the locking part (3), the locking hook (2) drives the vibration protection part (5), situated in the starting position, for rotation into the operating position, wherein the set direction is the direction of the rotation of the locking hook from the unlocking position into the locking position.
2. Electromagnetic lock according to Claim 1, wherein the electromagnetic lock comprises, moreover, an elastic element (7) provided in a connected manner between the housing (1) and the vibration protection part (5), wherein the elastic element (7) is designed to provide the vibration protection part (5) with elasticity for remaining in the starting position.
3. Electromagnetic lock according to Claim 2, wherein the housing (1) comprises a first housing part (11) and a second housing part (12), wherein the first housing part (11) and the second housing part (12) are connected by a catch, wherein the electromagnetic lock further comprises a first supporting shaft (13), a second supporting shaft (14) and a third supporting shaft (15), wherein the first supporting shaft (13), the second supporting shaft (14) and the third supporting shaft (15) are all provided in a connecting manner between the first housing part (11) and the second housing part (12), and wherein the first supporting shaft (13), the second supporting shaft (14) and the third supporting shaft (15) are provided parallel to each other at a distance.
4. Electromagnetic lock according to Claim 3, wherein the locking hook (2) is connected to the first supporting shaft (13), the locking part (3) is connected to the second supporting shaft (14), and the vibration protection part (5) is connected to the third supporting shaft (15), wherein the elastic element (7) is designed as a torsion spring which is provided around the third supporting shaft (15), wherein a first torsion arm of the torsion spring is connected to the first supporting shaft (13) or the second supporting shaft (14), and wherein a second torsion arm of the torsion spring is connected to the vibration protection part (5).
5. Electromagnetic lock according to one of the preceding claims, wherein a position of the centre of gravity of the vibration protection part (5) is such that an effective force for causing the rotation of the vibration protection part (5) to the starting position is provided to the vibration protection part (5).
6. Electromagnetic lock according to one of the preceding claims, wherein the electromagnetic lock is designed in such a way that, when the vibration protection part (5) is situated in the starting position, the vibration protection part (5) can bear against the locking hook (2) situated in the locking position.
7. Electromagnetic lock according to one of the preceding claims, wherein the housing (1) comprises a first wall (17) and a second wall (18), wherein the first wall (17) and the second wall (18) are connected to each other at an acute angle, wherein a gap (16) is provided on the first wall (17), wherein the gap (16) is designed to insert a catch (30), which interacts with the locking hook (2), into the housing (1), wherein the vibration protection part (5) is attached at a position within the housing (1) close to the connection point between the first wall (17) and the second wall (18).
8. Electromagnetic lock according to one of the preceding claims, wherein the vibration protection part (5) comprises a main body (51) which is rotatably connected to the housing (1), and a blocking piece (52) and an abutment piece (53), all of which are connected to the said main body (51); wherein the electromagnetic lock is designed in such a way that, when the locking hook (2) is situated in the locking position, the locking part (3) is situated in the first position and the vibration protection part (5) is situated in the starting position, and the locking hook (2) and the locking part (3) abut one another and interact between the blocking piece (52) and the abutment piece (53); wherein the electromagnetic lock is designed in such a way that, when an external interference force drives the locking hook (2), situated in the locking position, for the rotation in the set direction, the locking hook (2) can be in connecting contact with the abutment piece (53) of the vibration protection part (5), situated in the starting position, and drives the vibration protection part (5) for the rotation into the operating position, wherein the blocking piece (52) abuts the locking part (3), situated in the first position, and blocks a rotation of the locking part (3) to the second position.
9. Electromagnetic lock according to Claim 8, wherein the housing (1) comprises a first wall (17), wherein a gap (16) is provided on the first wall (17), wherein the gap (16) is designed to insert a catch (30), which interacts with the locking hook (2), into the housing (1); wherein the abutment piece (53) is situated between the first wall (17) and a first end of the locking hook (2), wherein the first wall (17) is designed to limit the maximum angle of the rotation of the vibration protection part (5) from the starting position to the operating position.
10. Electromagnetic lock according to Claim 8 or 9, wherein the blocking piece (52) and the abutment piece (53) are provided at an acute angle with respect to each other, wherein the acute angle between the blocking piece (52) and the abutment piece (53) is between 85° and 95°.
11. Locker comprising a locker body (10), a locker door (20), a catch (30) and an electromagnetic lock (40) designed according to one of Claims 1 to 10, wherein the locker body (10) is provided with an opening (101), wherein the locker door (20) is connected movably to the locker body (10), wherein the locker door (20) is designed to close or to open the opening (101); wherein the catch (30) is provided on the one of the two objects, the locker door (20) or the locker body (10), and the electromagnetic lock is provided on the other of the two objects, the locker door (20) or the locker body (10), wherein the locker is designed in such a way that, when the locker door (20) closes the opening (101), the locking hook (2), situated in the locking position, and the catch (30) interact and lock the position of the locker door (20).
Citation Information
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