Intelligent cabinet lock for transformer substation

Abstract

The utility model discloses an intelligent cabinet lock for a transformer substation, and belongs to the field of locks. The intelligent cabinet lock of the transformer substation is provided with a cabinet body, a cabinet door and a lock assembly. Wherein the cabinet door is connected with the cabinet body, and the lock assembly comprises a first mechanism connected to the cabinet door and a second mechanism connected to the cabinet body. Particularly, the lock assembly can open the cabinet door by using a key which is obviously different from the existing zigzag structure in a simple structure, so that the defect that the cabinet door cannot be opened due to the fact that the key is easily taken wrongly is avoided.

Description

Technical Field

[0001] The present application relates to the field of locks, and in particular, to an intelligent cabinet lock for a substation. Background Art

[0002] A cabinet is a freestanding or self-supporting enclosure used to house electrical and electronic equipment. Cabinets are typically made of cold-rolled steel or alloys.

[0003] Cabinets are widely used in the power, electronics, and communications sectors. Depending on their application, they can be categorized as low-voltage distribution cabinets, power cabinets, communications cabinets, and industrial security cabinets. To prevent unwanted intrusion, cabinets are equipped with locks to secure their doors. Currently, most cabinets use mechanical locks, unlocked and locked using a key or handle. However, existing mechanical locks are prone to being damaged by misplacing the key, creating significant inconvenience for users and maintenance personnel. Utility Model Content

[0004] The example of the present application provides a substation intelligent cabinet lock to improve the convenience of use.

[0005] The solution of this application example is implemented through the following content.

[0006] According to an example of the present utility model, the substation intelligent cabinet lock includes:

[0007] Cabinet;

[0008] A cabinet door hinged to the cabinet body, configured to be opened or closed by rotation; and

[0009] A lock assembly having a first mechanism and a second mechanism;

[0010] The first mechanism is connected to the cabinet door, and includes a rotating portion rotatably connected to the cabinet door and a crossbar, one end of the crossbar is connected to the rotating portion, and the other end of the crossbar is extended to allow interference with the telescopic shaft and is provided with a first limiting hole, the rotating portion is provided with a prismatic hole in a direction perpendicular to the rotating plane, and the cabinet door is provided with a lock hole connected to the prismatic hole, and a second limiting hole connected to the first limiting hole;

[0011] The second mechanism is connected to the cabinet body and includes a telescopic shaft. The telescopic shaft can be operated to remain in a telescopic state and a switchable shortened state so that the telescopic shaft passes through or leaves the first limiting hole.

[0012] In this cabinet lock, the prismatic hole can serve as a keyhole. Therefore, a simple prismatic key, unlike existing serrated keys, can be used as a key, thus easily avoiding the problem of misplacing the wrong key. The cabinet lock also features a simple structural design, easy operation, stable and reliable use, and is not prone to damage. Furthermore, the first restricting hole serves as the operating mechanism for the lock assembly, and the key's interference structure can be utilized to enable or disable the lock's operating state.

[0013] Preferably, the cabinet door is provided with a blocking piece adjacent to the second limiting hole, the blocking piece is connected to the cabinet door via a hinge, and is rotated by the hinge to block or expose the second limiting hole.

[0014] The blocking piece can block the second limiting hole, thereby avoiding the problem of accidental touch, and the blocking piece can also play a protective role for the lock.

[0015] Preferably, the blocking piece is a metal sheet.

[0016] The baffles constructed in the form of metal sheets have higher strength and fatigue resistance, thereby also increasing the service life of the baffles.

[0017] Preferably, the surface of the metal sheet is coated with rubber.

[0018] Metal sheets may easily rust when exposed to the air. Coating the surface of the metal sheet baffle with rubber can prevent the metal sheet from contacting the air or water vapor, thereby resisting corrosion.

[0019] Preferably, the hinge is provided with a torsion spring.

[0020] The torsion spring can provide a rebound force, so that the blocking piece can rotate after being operated, thereby preventing the second limiting hole from being exposed in a non-operating state.

[0021] Preferably, the second mechanism further includes an electromagnet cooperating with the blocking piece.

[0022] The electromagnet can be operated by turning on and off the power to move the baffle, thereby improving the convenience of operation.

[0023] Preferably, the prismatic hole includes a first hole segment and a second hole segment, the first hole segment and the second hole segment have the same polygonal shape, and corresponding edges are staggered at a specified angle along the circumference of the prismatic hole.

[0024] The prismatic hole is used as a keyhole and is arranged as a staggered arrangement of the first hole segment and the second hole segment, which can improve the security of the lock.

[0025] Preferably, the edge of the cabinet door has a soft rubber strip.

[0026] The soft rubber strips can improve the sealing between the cabinet door and the cabinet body when closed, reducing the intrusion of water vapor and dust.

[0027] Preferably, it also includes a wireless transmission module connected to the cabinet body, the wireless transmission module has a main contact, the cabinet door is provided with an auxiliary contact that cooperates with the main contact, and the wireless transmission module is configured to transmit a wireless signal when the auxiliary contact is disengaged from the main contact.

[0028] The main contacts and auxiliary contacts in the wireless transmitter module can be used to cooperate with each other in the two contacts, that is, contact and disengagement, and can generate different signals according to different designs, thereby being used to realize more complex design functions.

[0029] Preferably, the wireless transmission module is embedded in the cabinet.

[0030] The wireless transmitter module is embedded in the cabinet to avoid being exposed to the outside and reduce potential damage.

[0031] Compared to existing technologies, the intelligent cabinet lock in this solution has the advantages of simple structure and high stability, making it easy to use. In addition, its keyhole structure design allows for a simpler lock design and creates a clear structural difference from existing serrated keys, making it easy to distinguish and identify, thereby reducing the possibility of misplacing the key. In addition, the simple structure can be used for temporary emergency use in unexpected situations. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0033] Figure 1 This is a structural diagram of the substation intelligent cabinet lock in an embodiment of the present application from one perspective;

[0034] Figure 2 This is a structural diagram of the substation intelligent cabinet lock in another perspective in the embodiment of the present application;

[0035] Figure 3 This is a front view structural diagram of the rotating part in the embodiment of the present application;

[0036] Figure 4 for Figure 3 A schematic cross-sectional structural diagram of the rotary portion;

[0037] Figure 5 It is a schematic diagram of the cooperation structure of the rotating part and the cross bar connected to each other in the embodiment of the present application. DETAILED DESCRIPTION

[0038] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0039] In order to illustrate the technical solution of the present invention, specific embodiments are provided below for description.

[0040] Please also refer to Figures 1 to 5 .

[0041] This application discloses a smart cabinet lock for substations. This design overcomes the existing design constraints of keys that are typically flat with a specific serrated structure, or cylindrical with multiple raised protrusions arranged in a specific pattern. This design allows keys corresponding to the smart cabinets in this application to be easily distinguished structurally, thereby reducing the likelihood of misplacing them. Furthermore, since this design is intended for use in non-strictly confidential situations, a simple lock structure can be used, providing good structural stability.

[0042] Specifically, the substation intelligent cabinet lock includes a cabinet body 1, a cabinet door 11 and a lock assembly, such as Figure 1 and Figure 2 shown.

[0043] The cabinet door 11 is hinged to the cabinet body 1 via a hinge 12 and is configured to be opened or closed by rotating.

[0044] To improve the sealing performance of the cabinet body and the cabinet door when closed, the cabinet body and the cabinet door can be matched with each other in a concave-convex manner. For example, the cabinet door is provided with a groove, the cabinet body is provided with a protrusion, and the cabinet door and the cabinet body are fitted together. Or vice versa, the cabinet body is provided with a groove, the cabinet door is provided with a protrusion, and the cabinet door and the cabinet body are fitted together.

[0045] Alternatively, a soft rubber strip can be installed on the edge of the cabinet door, either independently or in combination with the aforementioned interlocking method. Alternatively, another attached rubber strip can be installed on the edge of the cabinet body. The combination of the soft rubber strip and the rubber strip can create a better tight contact effect, thereby improving the sealing effect.

[0046] In order to improve the performance or function of the smart cabinet lock, in some cases, the substation smart cabinet lock may further include a wireless transmission module connected to the cabinet.

[0047] For example, the wireless transmitter module can generate a wireless signal to indicate whether the cabinet door is open or closed. This can be done by connecting to a network and sending a signal to a remote location; alternatively, the wireless transmitter module can also transmit a Bluetooth signal or a wireless signal.

[0048] As a simple implementation, the wireless transmitter module can have a main contact (to improve the service life and durability of the wireless transmitter module, the wireless transmitter module is embedded in the cabinet), and the cabinet door is equipped with a corresponding auxiliary contact that cooperates with the main contact. The wireless transmitter module is configured to transmit a wireless signal when the auxiliary contact is disconnected from the main contact. In other words, the main contact and the auxiliary contact can form a switch structure, thereby switching their signal transmission state.

[0049] The above mainly discusses the cabinet doors, cabinet bodies and their related structures, and explains their functions and roles. Next, we will describe the implementation details of the optional questions of the lock assembly.

[0050] The lock assembly is mainly divided into two parts, namely a first mechanism and a second mechanism. The first mechanism is connected to the cabinet door, and the second mechanism is connected to the cabinet body.

[0051] The first mechanism includes a rotating portion 100 rotatably connected to the cabinet door and a cylindrical crossbar 2 .

[0052] In another embodiment, one end of a flat crossbar 200 is connected to the rotating portion 100, while the other end of the crossbar 200 is extended to allow interference with the telescopic shaft and is provided with a first limiting hole 201. The crossbar and the rotating portion may be fixedly connected or detachably connected. For example, the two may be integrally formed or connected by bolts.

[0053] The rotating portion 100 can function as a lock core. Therefore, to accommodate a key, the rotating portion is provided with a prismatic hole perpendicular to its own rotational plane. This prismatic hole can correspond to the structure of a keyhole. Specifically, it differs from the lock channel of existing flat key structures with serrations. In this application, a prismatic hole 101 with a smooth inner wall is used. This allows the prismatic structure to be constructed as a key, clearly distinguishing it from existing key structures in terms of shape and significantly reducing the possibility of misplacing a key.

[0054] When the prismatic hole is a single hole, it may be very easy to be opened by an unwanted user, thereby reducing its safety of use; even in some non-strictly confidential scenarios. Therefore, as an improvement, the prismatic hole can be configured to have a multi-segment structure. Different segments have different designs. More specifically and alternatively, the prismatic hole 101 includes a first hole segment 1011 and a second hole segment 1012, which have the same structure and size. In particular, the first hole segment 1011 and the second hole segment 1012 have the same polygonal shape and the corresponding edges are staggered at a specified angle along the circumference of the prismatic hole. In this way, the insertion and matching posture of the key matching the prismatic hole is more strictly required, thereby improving security.

[0055] As a matching counterpart of the prism hole in the rotating part, the cabinet door is provided with a lock hole 31 connected to the prism hole. The lock hole 31 can be circular or square, as long as the key can be inserted into the prism hole.

[0056] Considering that only the lock hole and the prism hole can provide relatively low locking security, a second limiting hole 32 communicating with the first limiting hole is also provided on the cabinet door.

[0057] Furthermore, the second mechanism in the lock mechanism is connected to the cabinet, and the second mechanism includes a telescopic shaft 4. This telescopic shaft 4 can be operated to remain in a telescopic state and a switchable shortened state so that the telescopic shaft 4 passes through or leaves the first limiting hole.

[0058] When the telescopic shaft 4 passes through the first limiting hole of the crossbar, the telescopic rod interferes with the crossbar and also prevents the crossbar from moving (rotating). Correspondingly, when the telescopic shaft leaves the first limiting hole of the crossbar, the telescopic rod no longer interferes with the crossbar and no longer prevents the crossbar from moving (rotating). In other words, the crossbar can rotate with the rotation of the pivoting portion, and when the crossbar is fully rotated (without contacting the cabinet door or the cabinet body), the cabinet door can be opened.

[0059] Preferably, the cabinet door may also be provided with a shield adjacent to the second restricting hole. The shield is connected to the cabinet door via a hinge (the hinge is equipped with a torsion spring to improve ease of operation). The shield can cover or expose the second restricting hole by rotating the hinge. The shield prevents manipulation of the telescopic rod by the shield, thereby concealing and protecting it.

[0060] The second mechanism also includes an electromagnet that cooperates with the baffle. The electromagnet is used to operate the baffle. For example, when the baffle is an iron sheet, the electromagnet can adsorb the baffle so that the baffle is pulled open to expose the second limiting hole. Or, further, the electromagnet can also adsorb or release the telescopic rod 4. The end of the telescopic rod 4 is sleeved with a spring, and in order to improve the contact, a ferromagnetic material is fixed at the end of the telescopic rod so that a magnetic adsorption effect can occur. When the electromagnet is adsorbed, the telescopic rod retracts and leaves the first limiting hole of the cross bar. When the electromagnet is released, the telescopic rod extends under the action of the spring and is inserted into the first limiting hole. The switch of the electromagnet can be controlled by a wireless generating module, or it can be operated by setting a button on the cabinet door.

[0061] The baffle can be made of metal, plastic, resin, or alloy. Preferably, the baffle is a metal sheet, such as an iron sheet or a stainless steel sheet. The surface may be coated for protection and corrosion resistance. Furthermore, the metal sheet may be coated with rubber.

[0062] The embodiments described above with reference to the accompanying drawings are exemplary and are only used to explain the present application, and should not be construed as limiting the present application.

[0063] In order to make the objectives, technical solutions and advantages of the embodiments of the present application clearer, one or more embodiments are described above with reference to the accompanying drawings.

[0064] In the foregoing description, for the purpose of explanation, numerous specific details are set forth in order to provide a more thorough understanding of one or more embodiments.

[0065] However, it will be apparent that in various cases one or more embodiments may be practiced without these specific details and that the various embodiments may be incorporated into each other without inconsistency.

[0066] The above describes in detail the structure, features and effects of the present application based on the embodiments shown in the drawings. The above are only preferred embodiments of the present application, but the scope of implementation of the present application is not limited to what is shown in the drawings. Any changes made in accordance with the concept of the present application, or modifications to equivalent embodiments with equivalent changes, which do not exceed the spirit covered by the description and drawings, should be within the scope of protection of the present application.

Claims

1. A substation intelligent cabinet lock, characterized in that: include: Cabinet; A cabinet door hinged to the cabinet body, configured to be opened or closed by rotation; as well as A lock assembly having a first mechanism and a second mechanism; The first mechanism is connected to the cabinet door, and includes a rotating portion rotatably connected to the cabinet door and a crossbar, one end of the crossbar is connected to the rotating portion, and the other end of the crossbar is extended to allow interference with the telescopic shaft and is provided with a first limiting hole, the rotating portion is provided with a prismatic hole along a direction perpendicular to the rotating plane, and the cabinet door is provided with a lock hole connected to the prismatic hole, and a second limiting hole connected to the first limiting hole; The second mechanism is connected to the cabinet, and the second mechanism includes a telescopic shaft. The telescopic shaft can be operated to remain in a telescopic state and a switchable shortened state so that the telescopic shaft passes through or leaves the first limiting hole.

2. The substation intelligent cabinet lock according to claim 1, characterized in that: The cabinet door is provided with a blocking piece adjacent to the second limiting hole. The blocking piece is connected to the cabinet door through a hinge and is rotated by the hinge to block or expose the second limiting hole.

3. The substation intelligent cabinet lock according to claim 2, characterized in that: The baffle is a metal sheet.

4. The substation intelligent cabinet lock according to claim 3, characterized in that: The surface of the metal sheet is covered with rubber.

5. The substation intelligent cabinet lock according to claim 3, characterized in that: The hinge is equipped with a torsion spring.

6. The substation intelligent cabinet lock according to claim 5, characterized in that: The second mechanism further includes an electromagnet matched with the blocking piece.

7. The substation intelligent cabinet lock according to claim 1, characterized in that: The prismatic hole includes a first hole segment and a second hole segment. The first hole segment and the second hole segment have the same polygonal shape, and corresponding edges thereof are staggered at a specified angle along the circumference of the prismatic hole.

8. The substation intelligent cabinet lock according to claim 1, characterized in that: The edges of the cabinet doors have soft rubber strips.

9. The substation intelligent cabinet lock according to claim 1, characterized in that: It also includes a wireless transmission module connected to the cabinet body, the wireless transmission module has a main contact, the cabinet door is provided with an auxiliary contact that cooperates with the main contact, and the wireless transmission module is configured to transmit a wireless signal when the auxiliary contact is separated from the main contact.

10. The substation intelligent cabinet lock according to claim 9, characterized in that: The wireless transmitting module is embedded in the cabinet.

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