Lock for power distribution cabinet

Abstract

The utility model relates to the technical field of power distribution cabinets, in particular to a lockset for a power distribution cabinet, which comprises a cabinet body and a cabinet door, an infrared sensor is fixedly arranged at the top in the cabinet body, an electromagnetic frame is clamped on the front end surface of the cabinet body at a cornice, and the electromagnetic frame and the cabinet door are magnetically attracted mutually; a guide rod is fixedly arranged at the position, located at the cornice, in the cabinet body, a magnet ring is slidably arranged at the position, close to the upper end, of the outer wall of the guide rod in a sleeving mode, a clamping hook is fixedly arranged on the outer wall of the magnet ring, a second spring is arranged at the position, located between the magnet ring and the bottom of the cabinet body, of the outer wall of the guide rod in a sleeving mode, and a groove is formed in the upper surface of the cabinet body. By adopting the design scheme, the power distribution cabinet can be automatically locked under the condition that an electric power technician forgets to lock the power distribution cabinet after maintenance, and irrelevant personnel can be effectively prevented from being in contact with the power distribution cabinet, so that potential safety hazards are reduced.

Description

Technical Field

[0001] This utility model relates to the field of power distribution cabinet technology, specifically a lock for power distribution cabinets. Background Technology

[0002] Distribution cabinets are the final stage equipment in a power distribution system. Currently, most distribution cabinets are equipped with locks to better protect the internal electronic components.

[0003] Currently, most power distribution cabinet locks have the problem that technicians often forget to lock the cabinet after repairing the electronic components inside, leaving the cabinet in an open state and posing a significant safety hazard. To prevent non-technical personnel from accessing the power distribution cabinet, we propose a new type of lock for power distribution cabinets. Utility Model Content

[0004] One of the technical problems this application aims to solve is that this design can automatically lock the distribution cabinet in the event that power technicians forget to lock it after maintenance, effectively preventing unauthorized personnel from contacting the distribution cabinet and thus reducing safety hazards.

[0005] To solve the above technical problems, this application provides a lock for a power distribution cabinet, including a cabinet body and a cabinet door. An infrared sensor is fixedly installed on the top of the cabinet body, and an electromagnetic frame is attached to the front end of the cabinet body at the eaves. The electromagnetic frame and the cabinet door are magnetically attracted to each other.

[0006] Inside the cabinet, a guide rod is fixedly installed at the eaves. A magnetic ring is slidably fitted on the upper end of the outer wall of the guide rod. A hook is fixedly installed on the outer wall of the magnetic ring. A second spring is fitted on the outer wall of the guide rod between the magnetic ring and the bottom of the cabinet. A groove is opened on the upper surface of the cabinet. A strong magnet is slidably installed on the inner wall of the groove. A first spring is installed between the strong magnet and the groove.

[0007] The above technical solution uses an infrared sensor to detect heat from the human body, thereby achieving the attraction between the electromagnetic frame and the cabinet door, thus closing the cabinet door.

[0008] In some embodiments, a locking block is provided on the upper end of the inner sidewall of the cabinet door, and a locking groove is provided on the lower surface of the locking block, and the locking groove and the locking hook are engaged.

[0009] The above technical solution utilizes magnetic attraction to generate inertia in the cabinet door, thereby causing the slot and hook on the card block to engage and automatically lock the cabinet door.

[0010] In some embodiments, the magnetic ring and the strong magnet are magnetically attracted and repelled.

[0011] Using the above technical solution, the magnet ring can be moved downwards by pressing down on the strong magnet.

[0012] In some embodiments, the diameter of the strong magnet is larger than the diameter at the groove eaves.

[0013] The above technical solution prevents the strong magnet from being ejected due to magnetic repulsion between it and the magnetic ring.

[0014] In some embodiments, a rubber plate is rotatably mounted on the upper surface of the cabinet at the location of the strong magnet.

[0015] The above technical solution facilitates the covering of the groove.

[0016] In some embodiments, the cabinet door is rotatably connected to the cabinet body, and the cabinet door is provided with a transparent window.

[0017] The above technical solution facilitates the infrared sensor to detect human body heat through the transparent window.

[0018] In some embodiments, a controller is provided at the upper position of the front face of the cabinet, and the controller is electrically connected to the electromagnetic frame and the infrared sensor.

[0019] The above technical solution allows the controller to control the relevant electronic devices.

[0020] This utility model has at least the following beneficial effects:

[0021] Infrared sensors detect personnel outside the distribution cabinet. When electrical technicians leave, the infrared sensors can no longer detect heat, and a signal is sent to the controller. The controller then supplies current to the electromagnetic frame, and using the principle of magnetic attraction, the cabinet door rotates and comes into contact with the cabinet body. At the same time, the instantaneous rotation of the cabinet door causes the locking block on the door to strike the locking hook, which in turn presses down the second spring on the locking hook and the magnetic ring, thus achieving the locking engagement between the locking hook and the locking slot, and completing the automatic locking of the cabinet door. Attached Figure Description

[0022] Figure 1 This is a front view of the present invention;

[0023] Figure 2 This is a schematic diagram of the overall structure of this utility model;

[0024] Figure 3 This is a schematic cross-sectional view of the present invention.

[0025] Figure 4 This is a schematic diagram of the cabinet door structure of this utility model;

[0026] Figure 5 This is a partial structural diagram of the present invention;

[0027] Figure 6 for Figure 3 Enlarged view of point A in the middle.

[0028] In the diagram: 1. Cabinet body; 2. Cabinet door; 3. Transparent window; 4. Rubber plate; 5. Controller; 6. Electromagnetic frame; 7. Infrared sensor; 8. Groove; 9. Strong magnet; 10. Guide rod; 11. Locking block; 12. First spring; 13. Magnetic ring; 14. Hook; 15. Second spring; 16. Slot. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0030] Example 1: Please refer to Figure 1-6 This utility model provides a technical solution: a lock for a power distribution cabinet, including a cabinet body 1 and a cabinet door 2. An infrared sensor 7 is fixedly installed on the top of the cabinet body 1. An electromagnetic frame 6 is installed on the front end of the cabinet body 1 at the eaves. The electromagnetic frame 6 and the cabinet door 2 are magnetically attracted to each other.

[0031] Inside the cabinet 1, a guide rod 10 is fixedly installed at the eaves. A magnetic ring 13 is slidably fitted on the upper part of the outer wall of the guide rod 10. A hook 14 is fixedly installed on the outer wall of the magnetic ring 13. A second spring 15 is fitted on the outer wall of the guide rod 10 between the magnetic ring 13 and the bottom of the cabinet 1. A groove 8 is opened on the upper surface of the cabinet 1. A strong magnet 9 is slidably installed on the inner wall of the groove 8. A first spring 12 is installed between the strong magnet 9 and the groove 8. The infrared sensor 7 senses the heat source of the human body, thereby realizing the adsorption between the electromagnetic frame 6 and the cabinet door 2, thus closing the cabinet door 2.

[0032] In some embodiments, a locking block 11 is provided on the upper end of the inner side wall of the cabinet door 2. A locking groove 16 is provided on the lower surface of the locking block 11. The locking groove 16 and the locking hook 14 engage with each other. By using magnetic attraction, the cabinet door 2 generates inertia, thereby making the locking groove 16 on the locking block 11 engage with the locking hook 14 to automatically lock the cabinet door 2.

[0033] In some embodiments, the magnetic ring 13 and the strong magnet 9 are magnetically attracted and repelled. By pressing down on the strong magnet 9, the magnetic ring 13 can be moved downward.

[0034] In some embodiments, the diameter of the strong magnet 9 is larger than the diameter at the eaves of the groove 8 to prevent the strong magnet 9 from being ejected due to magnetic repulsion between it and the magnet ring 13.

[0035] In some embodiments, a rubber plate 4 is rotatably provided on the upper surface of the cabinet 1 at the position of the strong magnet 9 to facilitate covering the groove 8.

[0036] In some embodiments, the cabinet door 2 is rotatably connected to the cabinet body 1, and the cabinet door 2 is provided with a transparent window 3, which allows the infrared sensor 7 to sense human body heat through the transparent window 3.

[0037] In some embodiments, a controller 5 is provided at the upper position of the front face of the cabinet 1. The controller 5 is electrically connected to the electromagnetic frame 6 and the infrared sensor 7. The controller 5 can control the relevant electronic devices.

[0038] Example 2: This utility model provides a technical solution: After an electrical technician repairs electronic components in a distribution cabinet and forgets to close the door, the infrared sensor 7 will automatically sense the heat source. When no heat source is detected, the infrared sensor 7 will send an electrical signal to the controller 5, causing the controller 5 to supply current to the electromagnetic frame 6. Using the principle of magnetic attraction, the cabinet door 2 will rotate and fit against the cabinet body 1. Using the inertia of the rotating cabinet door 2, the locking block 11 will press against the hook 14, thereby locking the distribution cabinet. When it is necessary to open the cabinet door 2, the technician stands in front of the cabinet door 2. The infrared sensor 7 senses the heat of the electrical technician through the transparent window 3, preventing the electromagnetic frame 6 from attracting the cabinet door 2. At this time, the rubber plate 4 at the top of the cabinet body 1 is rotated, and the strong magnet 9 is pressed down. Using the principle of magnetic repulsion, the magnet ring 13 moves down, thereby unlocking the cabinet door 2.

[0039] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0040] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention.

Claims

1. A lock for a power distribution cabinet, comprising a cabinet body (1) and a cabinet door (2), characterized in that: An infrared sensor (7) is fixedly installed on the top of the cabinet (1), and an electromagnetic frame (6) is installed on the front end of the cabinet (1) at the eaves. The electromagnetic frame (6) and the cabinet door (2) are magnetically attracted to each other. Inside the cabinet (1), a guide rod (10) is fixedly installed at the eaves. A magnetic ring (13) is slidably sleeved on the upper end of the outer wall of the guide rod (10). A hook (14) is fixedly installed on the outer wall of the magnetic ring (13). A second spring (15) is sleeved on the outer wall of the guide rod (10) between the magnetic ring (13) and the bottom of the cabinet (1). A groove (8) is opened on the upper surface of the cabinet (1). A strong magnet (9) is slidably installed on the inner wall of the groove (8). A first spring (12) is installed between the strong magnet (9) and the groove (8).

2. The lock for a power distribution cabinet according to claim 1, characterized in that: A locking block (11) is provided on the upper part of the inner side wall of the cabinet door (2). A locking groove (16) is provided on the lower surface of the locking block (11). The locking groove (16) and the locking hook (14) are engaged.

3. A lock for a power distribution cabinet according to claim 1, characterized in that: The magnetic ring (13) and the strong magnet (9) are mutually attracted and repelled.

4. A lock for a power distribution cabinet according to claim 1, characterized in that: The diameter of the strong magnet (9) is greater than the width of the groove (8) at the eaves.

5. A lock for a power distribution cabinet according to claim 1, characterized in that: A rubber plate (4) is rotatably installed on the upper surface of the cabinet (1) at the position of the strong magnet (9).

6. A lock for a power distribution cabinet according to claim 1, characterized in that: The cabinet door (2) is rotatably connected to the cabinet body (1), and a transparent window (3) is provided on the cabinet door (2).

7. A lock for a power distribution cabinet according to claim 1, characterized in that: A controller (5) is provided at the upper position of the front end face of the cabinet (1), and the controller (5) is electrically connected to the electromagnetic frame (6) and the infrared sensor (7).

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