High-voltage switch cabinet protection device

Abstract

The utility model relates to the technical field of electrical equipment safety protection, and discloses a high-voltage switch cabinet protection device, which comprises a high-voltage switch cabinet provided with a grounding knife switch; the lock comprises a base and a baffle plate, and the base is arranged on one side of the high-voltage switch cabinet and is provided with a lock hole; one end of the baffle is rotationally connected with the base, and a lock catch matched with the lock hole is arranged on the side, close to the base, of the baffle. The lock has an opening state and a closing state, and in the opening state, the baffle and the base are arranged at an angle; and in a closed state, the lock catch is arranged in the lock hole in a penetrating manner, and the baffle shields the grounding knife-switch. According to the utility model, the baffle plate is firmly locked at one side of the high-voltage switch cabinet through the closed state of the lockset, so that the grounding knife switch is effectively shielded. By means of the design, misoperation of unauthorized personnel on the grounding knife switch is prevented, the risk of electric shock accidents is greatly reduced, and the safety of the high-voltage switch cabinet and the surrounding area of the high-voltage switch cabinet is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of safety protection of electrical equipment, in particular to a high-voltage switch cabinet protection device. Background Art

[0002] High-voltage switchgear is a high-voltage power distribution device, mainly used in power plants, power transmission of small and medium-sized generators, power reception and transmission of secondary substations in power systems, power distribution in industrial and mining enterprises and institutions, and starting of large high-voltage motors. It is an important power distribution equipment widely used in power systems.

[0003] When a high-voltage switchgear undergoes a power outage for inspection or maintenance, it's necessary to close the grounding switch inside the switchgear to ensure the equipment is not energized during the power outage and to ensure the safety of maintenance personnel. Currently, to prevent operators from making the mistake of prematurely closing the switch, a "Do Not Close" warning sign is often placed on the switchgear. However, this solution is relatively unreliable and cannot completely prevent operator errors. Utility Model Content

[0004] In view of this, the present invention provides a high-voltage switch cabinet protection device to solve the problem in the related art that the high-voltage switch cabinet cannot effectively prevent operators from making erroneous operations.

[0005] The utility model provides a high-voltage switch cabinet protection device, comprising:

[0006] High-voltage switchgear is equipped with a grounding switch;

[0007] The lock comprises a base and a baffle, wherein the base is arranged on one side of the high-voltage switch cabinet and is provided with a lock hole; one end of the baffle is rotatably connected to the base, and a lock buckle is provided on a side of the baffle close to the base and matched with the lock hole;

[0008] The lock has an open state and a closed state. In the open state, the baffle is set at an angle to the base; in the closed state, the lock buckle is inserted into the lock hole, and the baffle blocks the grounding switch.

[0009] Beneficial Effects: This utility model securely locks the baffle to one side of the high-voltage switchgear when the lock is closed, effectively shielding the grounding switch. This design prevents unauthorized personnel from accidentally operating the grounding switch, significantly reducing the risk of electric shock and improving the safety of the high-voltage switchgear and its surrounding areas. Furthermore, because one end of the baffle is pivotally connected to the base, the lock can be easily switched between open and closed positions by adjusting the angle between the baffle and the base.

[0010] In an optional embodiment, a connecting ear is provided at one end of the base close to the high-voltage switch cabinet, and the connecting ear is connected to the high-voltage switch cabinet via a fastener.

[0011] Beneficial Effects: The present invention, through the cooperation of the connecting ears and fasteners, can strengthen the connection between the base and the high-voltage switchgear, ensuring that the lock will not loosen or shift during operation. In addition, compared with other fixing methods, connecting the base and the high-voltage switchgear with fasteners not only reduces the difficulty of initial installation and improves assembly efficiency, but also improves the convenience of subsequent replacement and maintenance.

[0012] In an optional embodiment, there are multiple connecting ears, and the multiple connecting ears are arranged at intervals along the height direction of the high-voltage switch cabinet.

[0013] Beneficial Effects: By providing multiple connecting lugs on the base, the present invention increases the number of connection points between the base and the high-voltage switchgear, further tightening the connection between the base and the high-voltage switchgear. Furthermore, the multiple connecting lugs are spaced apart, ensuring that stress is evenly distributed between the base and the high-voltage switchgear when applied, preventing loosening or damage caused by excessive local stress.

[0014] In an optional embodiment, the base is fixed to the high-voltage switch cabinet by 3M industrial adhesive.

[0015] Benefits: Compared to screw connections, using 3M industrial adhesive to secure the base to the high-voltage switchgear eliminates the need for pre-drilling holes in the base and the need for numerous connectors. This design simplifies installation, reducing installation time and complexity.

[0016] In an optional embodiment, the baffle is rotatably connected to the base via a rotating shaft, and the axial direction of the rotating shaft is consistent with the height direction of the high-voltage switchgear.

[0017] Beneficial Effect: Because the axis of the rotating shaft is aligned with the height of the high-voltage switchgear, the baffle can rotate along a natural, ergonomic trajectory when opening and closing. This not only makes operation smoother, but also reduces potential damage to equipment or personnel caused by improper operation.

[0018] In an optional embodiment, the baffle includes a first sub-baffle and a second sub-baffle connected to the first sub-baffle, the second sub-baffle is rotatably connected to the base at one end away from the first sub-baffle, and the lock is provided on the second sub-baffle; in the closed state, the first sub-baffle blocks the grounding switch.

[0019] Beneficial Effects: The first sub-baffle is responsible for shielding the grounding switch, while the second sub-baffle is responsible for rotating and locking with the base. This design makes it easier for operators to find the lock position and smoothly lock or unlock the lock. It also avoids the inconvenience caused by excessively long or heavy baffles.

[0020] In an optional embodiment, the lock further comprises a padlock, and in the closed state, the padlock locks the lock buckle and the lock hole together.

[0021] Beneficial Effects: As a traditional mechanical lock, the padlock is simple in structure and safe and reliable. By locking the lock catch and keyhole together, the padlock can ensure that the baffle cannot be easily opened when closed, effectively preventing unauthorized personnel from accessing sensitive components of the high-voltage switchgear, such as the grounding knife switch, significantly improving equipment safety.

[0022] In an optional embodiment, there are multiple lock buckles and multiple lock holes, and the multiple lock buckles and the multiple lock holes are arranged in a one-to-one correspondence.

[0023] Beneficial effect: The design of multiple locks and lock holes means that more locks (such as padlocks) are required to lock these positions at the same time. This can significantly improve the overall safety of the high-voltage switchgear and reduce the safety risks caused by single point failures or weak links.

[0024] In an optional embodiment, a grip portion is provided on a surface of the baffle on one side away from the lock buckle.

[0025] Beneficial Effects: By providing a grip on the baffle, the present invention makes it easier and more convenient for operators to open or close the baffle, improving operational convenience and efficiency. Furthermore, by locating the grip on the side surface away from the lock, interference between the grip, the high-voltage switchgear, and the baffle can be avoided during the closing process.

[0026] In an optional embodiment, an observation window is provided on the baffle, and in the closed state, the position of the observation window corresponds to the position of the grounding switch.

[0027] Beneficial Effect: By providing an observation window on the baffle, the operator can directly check the status of the grounding switch through the observation window without opening the baffle. This design improves the convenience of operation and reduces the steps in the operation process. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0029] Figure 1 This is a structural diagram of a lock in an open state according to an embodiment of the present utility model;

[0030] Figure 2 This is a structural schematic diagram of a lock in a closed state according to an embodiment of the present invention.

[0031] Description of reference numerals:

[0032] 1. Grounding switch; 2. Lock; 201. Base; 2011. Keyhole; 202. Baffle; 2021. Lock catch; 2022. First sub-baffle; 2023. Second sub-baffle. DETAILED DESCRIPTION

[0033] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the embodiments described are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without making creative efforts shall fall within the scope of protection of the present invention.

[0034] Aiming at the problem that high-voltage switchgear in related technologies cannot effectively prevent operators from making operational errors, the utility model provides a high-voltage switchgear protection device.

[0035] The following combination Figures 1 to 2 , describing the embodiments of the present utility model.

[0036] According to an embodiment of the present invention, a high voltage switch cabinet protection device is provided, such as Figure 1 and Figure 2 As shown, it includes: a high-voltage switch cabinet and a lock 2.

[0037] Specifically, the high-voltage switch cabinet is provided with an earthing knife switch 1; the lock 2 includes a base 201 and a baffle 202, the base 201 is arranged on one side of the high-voltage switch cabinet, and is provided with a lock hole 2011; one end of the baffle 202 is rotatably connected to the base 201, and the side of the baffle 202 close to the base 201 is provided with a lock buckle 2021 that cooperates with the lock hole 2011; the lock 2 has an open state and a closed state. In the open state, the baffle 202 is set at an angle to the base 201; in the closed state, the lock buckle 2021 is passed through the lock hole 2011, and the baffle 202 blocks the earthing knife switch 1.

[0038] In this embodiment, the closed position of the lock 2 securely locks the baffle 202 to one side of the high-voltage switchgear, effectively shielding the grounding switch 1. This design prevents unauthorized personnel from accidentally operating the grounding switch 1, significantly reducing the risk of electric shock accidents and improving the safety of the high-voltage switchgear and its surrounding area. Furthermore, because one end of the baffle 202 is rotatably connected to the base 201, the lock 2 can be easily switched between the open and closed positions by adjusting the angle between the baffle 202 and the base 201.

[0039] It should be noted that high-voltage switchgear refers to switchgear with a rated voltage of 3kV or above.

[0040] According to one embodiment of the present invention, a connecting lug is provided at one end of the base 201, adjacent to the high-voltage switchgear, and the connecting lug is connected to the high-voltage switchgear via a fastener. This embodiment, through the cooperation of the connecting lug and the fastener, provides a more secure connection between the base 201 and the high-voltage switchgear, ensuring that the lock 2 will not loosen or shift during operation. Furthermore, compared to other fixing methods, connecting the base 201 to the high-voltage switchgear via fasteners not only reduces initial installation difficulty and improves assembly efficiency, but also facilitates subsequent replacement and maintenance.

[0041] According to one embodiment of the present invention, there are multiple connecting lugs, spaced apart along the height of the high-voltage switchgear. This embodiment, by providing multiple connecting lugs on the base 201, increases the number of connection points between the base 201 and the high-voltage switchgear, further tightening the connection between the base 201 and the high-voltage switchgear. Furthermore, the spacing of the multiple connecting lugs ensures that forces acting on the base 201 and the high-voltage switchgear are evenly distributed, preventing loosening or damage caused by excessive localized forces.

[0042] According to one embodiment of the present invention, base 201 is secured to the high-voltage switchgear using 3M industrial adhesive. Compared to screw connections, using 3M industrial adhesive to secure base 201 to the high-voltage switchgear eliminates the need for pre-drilling holes in base 201 and the need for numerous connectors. This design simplifies installation, reducing installation time and complexity.

[0043] According to one embodiment of the present invention, the baffle 202 is rotatably connected to the base 201 via a rotating shaft, and the axial direction of the rotating shaft is consistent with the height direction of the high-voltage switch cabinet. Since the axial direction of the rotating shaft is consistent with the height direction of the high-voltage switch cabinet, the baffle 202 can rotate along a natural, ergonomic trajectory when opening and closing. This not only makes the operation smoother, but also reduces potential damage to equipment or personnel due to improper operation. It should be noted that the height direction of the high-voltage switch cabinet in this embodiment is consistent with the height direction of the high-voltage switch cabinet. Figure 1 、 Figure 2 The direction shown in is consistent.

[0044] According to one embodiment of the present invention, one of the baffle 202 and base 201 is fixedly connected to the rotating shaft, while the other is rotatably connected to the rotating shaft. This embodiment, by fixedly connecting one of the baffle 202 and base 201 to the rotating shaft, ensures that the rotating shaft remains stable when subjected to external forces, preventing loosening or displacement that could affect the overall stability of the protective device. Simultaneously, the rotatable connection of the other component to the rotating shaft allows the baffle 202 to rotate freely about the rotating shaft, enabling the lock 2 to open and close.

[0045] According to one embodiment of the present invention, Figure 1 and Figure 2 As shown, the baffle 202 includes a first sub-baffle 2022 and a second sub-baffle 2023 connected to the first sub-baffle 2022. The end of the second sub-baffle 2023, remote from the first sub-baffle 2022, is pivotally connected to the base 201. A lock catch 2021 is provided on the second sub-baffle 2023. When closed, the first sub-baffle 2022 shields the grounding switch 1. The first sub-baffle 2022 shields the grounding switch 1, while the second sub-baffle 2023 pivotally connects to the base 201 and locks it. This design makes it easier for the operator to locate the lock catch 2021 and smoothly lock or unlock the lock 2021. It also avoids the inconvenience of operating the baffle 2022 due to its length or weight.

[0046] According to one embodiment of the present invention, the lock 2 also includes a padlock. When closed, the padlock locks the lock catch 2021 and the keyhole 2011 together. As will be appreciated, the padlock, as a traditional mechanical lock 2, is simple in structure and safe and reliable. By locking the lock catch 2021 and the keyhole 2011 together, the padlock ensures that the baffle 202 cannot be easily opened when closed, effectively preventing unauthorized access to sensitive components of the high-voltage switchgear, such as the grounding switch 1, and significantly improving the safety of the equipment.

[0047] According to one embodiment of the present invention, there are multiple lock buckles 2021 and multiple lock holes 2011, and the multiple lock buckles 2021 are arranged in a one-to-one correspondence with the multiple lock holes 2011. It can be understood that the design of multiple lock buckles 2021 and lock holes 2011 means that more locks 2 (such as padlocks) are required to lock these positions simultaneously. In this way, the overall safety of the high-voltage switchgear can be significantly improved, and the safety risks caused by single point failures or weak links can be reduced.

[0048] According to one embodiment of the present invention, a grip is provided on the side surface of the baffle 202 facing away from the latch 2021. This embodiment, by providing the grip on the baffle 202, simplifies and facilitates the operator's opening and closing of the baffle 202, improving operational convenience and efficiency. Furthermore, positioning the grip on the side surface facing away from the latch 2021 prevents interference between the grip and the high-voltage switchgear or baffle 202 during closing.

[0049] According to one embodiment of the present invention, a viewing window is provided on the baffle 202. When closed, the position of the viewing window corresponds to the position of the grounding switch 1. By providing the viewing window on the baffle 202, the operator can directly check the status of the grounding switch 1 through the viewing window without opening the baffle 202. This design improves operational convenience and reduces the number of steps required during operation.

[0050] Although the embodiments of the present invention have been described with reference to the accompanying drawings, those skilled in the art may make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations shall fall within the scope defined by the appended claims.

Claims

1. A high voltage switch cabinet protection device, characterized in that: include: High-voltage switchgear, equipped with a grounding switch (1); A lock (2) comprising a base (201) and a baffle (202), wherein the base (201) is arranged on one side of the high-voltage switch cabinet and is provided with a lock hole (2011); one end of the baffle (202) is rotatably connected to the base (201), and a lock buckle (2021) is provided on a side of the baffle (202) close to the base (201) and matched with the lock hole (2011); The lock (2) has an open state and a closed state. In the open state, the baffle (202) is arranged at an angle to the base (201); in the closed state, the lock buckle (2021) is inserted into the lock hole (2011), and the baffle (202) blocks the grounding switch (1).

2. The high-voltage switchgear protection device according to claim 1, characterized in that: The base (201) is provided with a connecting ear at one end close to the high-voltage switch cabinet, and the connecting ear is connected to the high-voltage switch cabinet via a fastener.

3. The high-voltage switchgear protection device according to claim 2, characterized in that: There are multiple connecting ears, and the multiple connecting ears are arranged at intervals along the height direction of the high-voltage switch cabinet.

4. The high-voltage switchgear protection device according to claim 1, characterized in that: The base (201) is fixed to the high-voltage switch cabinet by 3M industrial glue.

5. The high-voltage switchgear protection device according to claim 1, characterized in that: The baffle (202) is rotatably connected to the base (201) via a rotating shaft, and the axial direction of the rotating shaft is consistent with the height direction of the high-voltage switch cabinet.

6. The high-voltage switchgear protection device according to claim 1, characterized in that: The baffle (202) comprises a first sub-baffle (2022) and a second sub-baffle (2023) connected to the first sub-baffle (2022); one end of the second sub-baffle (2023) away from the first sub-baffle (2022) is rotatably connected to the base (201); the second sub-baffle (2023) is provided with the lock (2021); in the closed state, the first sub-baffle (2022) blocks the grounding switch (1).

7. The high-voltage switchgear protection device according to any one of claims 1 to 6, characterized in that: The lock (2) further comprises a padlock, and in the closed state, the padlock locks the lock buckle (2021) and the lock hole (2011) together.

8. The high-voltage switchgear protection device according to claim 7, characterized in that: There are multiple lock buckles (2021) and multiple lock holes (2011), and the multiple lock buckles (2021) and the multiple lock holes (2011) are arranged in a one-to-one correspondence.

9. The high-voltage switchgear protection device according to any one of claims 1 to 6, characterized in that: A gripping portion is provided on a surface of one side of the baffle (202) away from the lock catch (2021).

10. The high-voltage switchgear protection device according to any one of claims 1 to 6, characterized in that: An observation window is provided on the baffle (202); in the closed state, the position of the observation window corresponds to the position of the grounding switch (1).

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