A switchgear cabinet

Abstract

The application belongs to the technical field of power equipment, and particularly relates to a switch cabinet. The application provides a switch cabinet, which comprises a switch cabinet main body, a five-prevention lock assembly and a lock management assembly. The lock management assembly comprises a hook, the hook is arranged on the inner wall of the cabinet door of the switch cabinet main body, the five-prevention lock assembly comprises a plurality of five-prevention locks, and the five-prevention locks are fixed to the hook or mounted on the switch cabinet main body. In the switch cabinet provided by the application, the hook arranged on the inner wall of the cabinet door of the switch cabinet main body can store the disassembled five-prevention locks on the hook during the maintenance of the switch cabinet. The five-prevention locks are stored in the lock management assembly additionally arranged on the switch cabinet, so that the problems of easy damage, easy misoperation and low work efficiency during the maintenance of the five-prevention locks are effectively avoided.

Description

Technical Field

[0001] This application belongs to the field of power equipment technology, and in particular relates to a switch cabinet; more specifically, it relates to a switch cabinet containing a five-proof lock. Background Technology

[0002] Switchgear equipped with five-proof locks is a core power distribution device in power systems, ensuring the safe operation of high-voltage electrical equipment and preventing accidents caused by misoperation. It is widely used in substations, factory power distribution rooms, and building power distribution rooms. Through the linkage between the five-proof locks and the cabinet structure and electrical circuits, standardized operating procedures are enforced. During corresponding operations, only by following the correct operating sequence can the locks be unlocked and the next action completed; when an incorrect operation is performed, the locks will directly engage, physically preventing dangerous behavior and eliminating misoperation from both physical and logical perspectives. It is a reliable line of defense for the safe operation of high-voltage power distribution systems.

[0003] When the switch cabinet is under maintenance, it is necessary to frequently disassemble the five-proof locks, such as grounding locks, handcart locks, and front door locks. In traditional operations, maintenance personnel usually place the disassembled locks randomly on the ground or in the tool bag, which has the following problems: (1) The locks are easily damaged. After the locks are placed on the ground, they may be stepped on, crushed, or come into contact with oil or water stains, which may cause the internal mechanical structure to jam or the outer shell to corrode; (2) The management is chaotic. The mixed placement of locks may lead to accidental taking or missing installation, or even cause the risk of misoperation; (3) The efficiency is low. After maintenance, it is necessary to repeatedly search for the locks, which prolongs the operation time.

[0004] Therefore, developing a switch cabinet to address the technical shortcomings of existing switch cabinets, such as easy damage, susceptibility to misoperation, and low work efficiency during maintenance, has become an urgent problem for those skilled in the art. Utility Model Content

[0005] Therefore, it is necessary to provide a switch cabinet that addresses the technical shortcomings of existing switch cabinets, such as easy damage, easy misoperation, and low work efficiency during maintenance.

[0006] This application provides a switch cabinet, which includes: a switch cabinet body, a five-proof lock assembly, and a lock management assembly. The lock management assembly includes a hook, which is disposed on the inner wall of the cabinet door of the switch cabinet body. The five-proof lock assembly includes a plurality of five-proof locks, which are fixed to the hook or installed on the switch cabinet body.

[0007] This application provides a switch cabinet in which a hook-lock management component is installed on the inner wall of the cabinet door of the main body of the switch cabinet. When the five-proof lock is under maintenance, the five-proof lock can be temporarily stored in the hook, which effectively prevents the five-proof lock from being damaged or mistakenly taken or missing due to being placed on the ground. After maintenance is completed, the five-proof lock can be removed from the hook and put back in its place, which improves work efficiency.

[0008] In one embodiment, the lock management component further includes a magnetic element, which is connected to the hook and the inner wall of the cabinet door respectively, for fixing the hook to the inner wall of the cabinet door.

[0009] In one embodiment, the number of hooks is 3-5, and the hooks are arranged at equal intervals in the horizontal or vertical direction.

[0010] In one embodiment, the spacing between adjacent hooks is 5-7 centimeters.

[0011] In one embodiment, the distance between the hook and the bottom of the inner wall of the cabinet door is 0.8-1.2 meters.

[0012] In one embodiment, the lock management component further includes an identification element, which corresponds one-to-one with the hook and is positioned above the hook.

[0013] In one embodiment, the identification element includes: an embedded nameplate or an adhesive sticker.

[0014] In one embodiment, the identification element is an acrylic identification element or a metal identification element.

[0015] In one embodiment, the hook is a stainless steel hook.

[0016] In one embodiment, the hook surface is provided with a passivation layer.

[0017] In summary, this application provides a switch cabinet, including: a switch cabinet body, a five-proof lock assembly, and a lock management assembly. The lock management assembly includes hooks disposed on the inner wall of the cabinet door of the switch cabinet body. The five-proof lock assembly includes multiple five-proof locks, which are fixed to the hooks or installed on the switch cabinet body. In the switch cabinet provided by this application, the hooks provided on the inner wall of the cabinet door allow for the storage of removed five-proof locks during switch cabinet maintenance. By using the lock management assembly added to the switch cabinet to store the five-proof locks, the problems of easy damage, easy misoperation, and low work efficiency during the maintenance of five-proof locks are effectively avoided. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this application. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0019] Figure 1 A schematic diagram of a switchgear in a power outage maintenance state is provided in the technical solution of this application embodiment; Figure 2 A schematic diagram of a switch cabinet in a powered-on state is provided in the technical solution of this application embodiment; The switch cabinet includes the main body 1, cabinet door 11, five-proof lock assembly 2, five-proof lock 21, lock management assembly 3, and hook 31. Detailed Implementation

[0020] This application provides a switch cabinet to address the technical defects in the prior art, where the five-proof locks of switch cabinets are easily damaged, prone to misoperation, and have low work efficiency during maintenance.

[0021] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0022] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0023] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0024] Please see Figure 1 and Figure 2 This application provides a switch cabinet, including: a switch cabinet body 1, a five-proof lock assembly 2, and a lock management assembly 3. The lock management assembly 3 includes a hook 31, which is disposed on the inner wall of the cabinet door 11 of the switch cabinet body 1. The five-proof lock assembly 2 includes a plurality of five-proof locks 21, which are fixed to the hook 31 or installed on the switch cabinet body 1.

[0025] To facilitate a clear and complete description of the switchgear provided in the embodiments of this application, the working process of the switchgear provided in the embodiments of this application will be briefly described below.

[0026] The working mechanism of the switchgear provided in this application embodiment is as follows: by integrating the mechanical-electrical interlocking mechanism with the circuit breaker, disconnecting switch and other components inside the switchgear body 1, the operation safety of the switchgear is ensured by forcibly standardizing the operating sequence.

[0027] In the switchgear provided in this application embodiment, the main body 1 of the switchgear includes: a cabinet, and a linkage execution component and a safety verification component installed inside the cabinet; wherein, the linkage execution component includes: a locking rod, a key transmission mechanism, and a status feedback contact, and the main functions of the linkage execution component include: connecting the five-proof lock to the core components of the switchgear, such as: the opening and closing status of the circuit breaker, the position of the grounding switch, and effectively ensuring that when the operation is not performed according to the preset operation procedure, the locking step is triggered; the safety verification component includes: a live indicator and a position sensor, the live indicator is used to detect the circuit voltage, and the position sensor is used to confirm the opening and closing status of the isolating switch or the grounding switch, and to provide a safe unlocking signal for unlocking the five-proof lock 21.

[0028] In the switch cabinet provided in this application embodiment, the five-proof lock assembly 2 includes: mechanical locks, such as: floor locks, handcart locks, front door locks, etc., and electrical interlocking modules.

[0029] Furthermore, taking the entire process of "power outage maintenance - power restoration" as an example, the working process of the switchgear is explained.

[0030] Power outage operation: The core of power outage operation is to ensure the safety of the maintenance process and prevent injury to operators or damage to switchgear.

[0031] Step 1: Disconnect the circuit breaker. Insert the circuit breaker operating key. After verifying that there is no overload signal in the circuit, unlock the circuit breaker handle and use manual or electric operation to trip the circuit breaker. After tripping, the circuit breaker operating key will pop out and unlock the isolating switch.

[0032] Step 2: Disconnect the isolating switch. Use the key taken out after the circuit breaker is tripped to unlock the isolating switch operation lock and manually trip the switch. Since the circuit breaker is already open and there is no current in the circuit, avoid operating under load. After tripping, switch the key to "grounding switch unlocking key".

[0033] Step 3: Close the grounding switch, use the key unlocked by the isolating switch, and in conjunction with the "no voltage" signal on the live display, unlock the grounding switch operation lock, close the grounding switch to release the residual charge of the equipment; after grounding, the interlock lock of cabinet door 11 is unlocked, and cabinet door 11 can be opened for maintenance.

[0034] Power supply operation: The key to power supply operation is to avoid short circuits or electric shock to operators and ensure the safety of the switchgear.

[0035] Step 1: Disconnect the grounding switch. After the maintenance is completed, first operate the grounding switch to open, and then release the disconnect switch unlocking key.

[0036] Step 2: Close the isolating switch, use the key after the grounding switch is tripped to unlock the isolating switch and close it, then release the circuit breaker unlocking key after closing.

[0037] Step 3: Close the circuit breaker, use the key after closing the disconnect switch to verify that there are no abnormalities in the circuit, then unlock the circuit breaker and close it to complete the power supply.

[0038] Throughout the entire power outage maintenance and power restoration process, the five-proof lock assembly 2, through key transfer and status interlocking, forces the switchgear to follow the safe sequence of "power outage → grounding → maintenance → grounding removal → power restoration". Any step reversal or violation of regulations will terminate the process because the lock cannot be unlocked, thus physically preventing misoperation.

[0039] In the switchgear provided in this application embodiment, when power is off for maintenance, the five-proof lock 21 is fixed to the hook 31; when the switchgear is powered on, the five-proof lock 21 is installed on the switchgear body 1. A lock management component 3 containing hooks 31 is installed on the inner wall of the cabinet door 11 of the switchgear body 1. When the five-proof lock 21 is under maintenance, each of the five-proof locks can be temporarily stored in a different hook 31, with the number of five-proof locks corresponding one-to-one with the number of hooks 31. In practical applications, the five-proof locks can be: front door locks, handcart locks, floor knife locks, etc., without specific limitations. During power outage maintenance, when removing different five-proof locks according to the maintenance sequence, the removed locks are placed on hooks 31. This orderly storage effectively prevents damage to the five-proof locks 21, or issues of accidental removal or omission, caused by the locks 21 being placed on the ground. After maintenance, the locks 21 are removed from hooks 31 and returned to their original positions, resulting in higher work efficiency. Installing hooks 31 on the inner wall of the cabinet door 11 of the switch cabinet body 1 eliminates the need for additional tools or storage equipment and avoids occupying additional storage space, resulting in higher integration. In the technical solution provided in this application embodiment, the lock management component 3 effectively standardizes the management of the five-proof locks, preventing the failure of the five-proof logic due to accidental or missed installation.

[0040] Actual calculations show that using the switchgear provided in this application embodiment can reduce maintenance costs, reduce the damage rate of the five-proof lock by more than 70%, and effectively extend the service life of the switchgear. At the same time, it can also improve efficiency, shorten the maintenance time of the switchgear by more than 20%, and significantly improve the cleanliness of the maintenance site.

[0041] To further optimize the technical solution, in a switch cabinet provided in this application embodiment, the lock management component 3 further includes a magnetic component. The magnetic component is connected to both the hook 31 and the inner wall of the cabinet door 11, and is used to fix the hook 31 to the inner wall of the cabinet door 11. Fixing the hook 31 to the inner wall of the cabinet door 11 using the magnetic component ensures the stability of the connection between the hook 31 and the inner wall of the cabinet door 11. It also facilitates the removal and installation of the hook 31 from the inner wall of the cabinet door 11, making it easy to adjust and replace the position of the hook 31. Furthermore, the connection structure of the magnetic component facilitates the modification of existing switch cabinets, resulting in low modification costs and convenient operation, making it suitable for large-scale promotion.

[0042] To further optimize the technical solution, considering the general practical needs of conventional switch cabinets, and to meet the storage requirement that at least one hook 31 is matched for each five-proof lock, the technical solution provided in this application embodiment has 3-5 hooks 31, which are arranged at equal intervals in the horizontal or vertical direction.

[0043] To prevent the five-proof locks 21 placed on adjacent hooks 31 from interfering with each other and causing damage due to unintended collisions during power outage maintenance, and taking into account the structural dimensions of the switch cabinet body 1 and cabinet door 11, the spacing between adjacent hooks 31 in the switch cabinet provided in this application embodiment is 5-7 cm.

[0044] Similarly, in order to facilitate the storage of the five-proof lock 21 in the hook 31, and to prevent the bottom of the five-proof lock 21 from being damaged by contact with the ground, in the technical solution provided in this application embodiment, the distance between the hook 31 and the bottom of the inner wall of the cabinet door 11 is 0.8-1.2 meters.

[0045] To better achieve accurate positioning of different types of five-proof locks 21 and reduce the risk of misoperation, the lock management component 3 in the switch cabinet provided in this application embodiment further includes: an identification element, which corresponds one-to-one with the hook 31 and is set above the hook 31.

[0046] To further optimize the technical solution, while ensuring that the identification component is easy for operators to observe and use, the complex operating environment of the switch cabinet is also taken into account, ensuring that the identification component maintains structural stability and is not damaged in the complex working environment. In the technical solution provided in this application embodiment, the identification component includes: an embedded nameplate or an adhesive sticker.

[0047] To better extend the weather resistance of the identification component, the identification component provided in the embodiments of this application is an acrylic identification component or a metal identification component.

[0048] Similarly, in order to effectively ensure that the hook 31 can maintain structural stability and not be damaged in complex working environments such as injection substations and power distribution rooms, the hook 31 in the switch cabinet provided in this application embodiment is a stainless steel hook.

[0049] Similarly, in order to effectively extend the service life of the hook 31 and prevent the five-proof lock 21 from falling off or the operator from being injured during operation due to damage or corrosion of the hook 31, the technical solution provided in this application embodiment has a passivation layer on the surface of the hook 31.

[0050] In summary, this application provides a switch cabinet, including: a switch cabinet body, a five-proof lock assembly, and a lock management assembly. The lock management assembly includes hooks disposed on the inner wall of the cabinet door of the switch cabinet body. The five-proof lock assembly includes multiple five-proof locks, which are fixed to the hooks or installed on the switch cabinet body. In the switch cabinet provided by this application, the hooks provided on the inner wall of the cabinet door allow for the storage of removed five-proof locks during switch cabinet maintenance. By using the lock management assembly added to the switch cabinet to store the five-proof locks, the problems of easy damage, easy misoperation, and low work efficiency during the maintenance of five-proof locks are effectively avoided.

[0051] The technical features of the embodiments described above can be combined arbitrarily. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as the combination of these technical features does not contradict each other, it should be considered within the scope of this specification. Furthermore, other implementation methods can be derived from the above embodiments, allowing for structural and logical substitutions and changes without departing from the scope of this disclosure.

[0052] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. Switchgear cabinet, characterized in that The switch cabinet includes: a switch cabinet body, a five-proof lock assembly, and a lock management assembly. The lock management assembly includes a hook, which is disposed on the inner wall of the cabinet door of the switch cabinet body. The five-proof lock assembly includes multiple five-proof locks, which are fixed to the hook or installed on the switch cabinet body.

2. Switchgear according to claim 1, characterized in that The lock management component further includes a magnetic component, which is connected to the hook and the inner wall of the cabinet door respectively, for fixing the hook to the inner wall of the cabinet door.

3. Switchgear cabinet according to claim 1 or 2, characterized in that The number of hooks is 3-5, and the hooks are arranged at equal intervals in the horizontal or vertical direction.

4. Switchgear according to claim 3, characterized in that The spacing between adjacent hooks is 5-7 cm.

5. Switchgear cabinet according to claim 3 or 4, characterized in that The distance between the hook and the bottom of the inner wall of the cabinet door is 0.8-1.2 meters.

6. The switchgear according to claim 1 or 2, characterized in that, The lock management component further includes an identification element, which corresponds one-to-one with the hook and is positioned above the hook.

7. Switchgear according to claim 6, characterized in that The identification element includes: an embedded nameplate or an adhesive sticker.

8. Switchgear cabinet according to claim 6 or 7, characterized in that The identification element is an acrylic identification element or a metal identification element.

9. The switchgear of claim 1, wherein, The hook is a stainless steel hook.

10. Switchgear according to claim 1 or 9, characterized in that The hook surface is provided with a passivation layer.

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