Shielding device for anti-misoperation panel of high-voltage switch cabinet

Abstract

The utility model discloses a shielding device for an anti-misoperation panel of a high-voltage switch cabinet. The shielding device comprises a shielding plate, a grounding switch operation hole, a door leaf opening hole and an isolating switch operation hole are formed in the front section of the shielding plate from top to bottom, and active sealing covers are mounted at the front ends of the grounding switch operation hole and the isolating switch operation hole and rotationally connected with the shielding plate through first pins; the opening structure comprises a first passive sealing cover and a second passive sealing cover which are arranged front and back, and the first passive sealing cover and the second passive sealing cover are used for blocking the door leaf opening hole in the inner side of the shielding plate; the first passive sealing cover is positioned at the front end of the second passive sealing cover; according to the utility model, the shielding plate can be opened by the opening structure only after the grounding switch and the isolation switch are operated; and an operator is prevented from directly opening the door leaf, so that the maintenance safety is ensured.

Description

Technical Field

[0001] The utility model relates to the field of high-voltage switch cabinets, in particular to a panel shielding device for preventing misoperation of a high-voltage switch cabinet. Background Art

[0002] High-voltage switchgear refers to the electrical products used for power generation, transmission, distribution, conversion and consumption of electric energy in power systems, which play the role of switching, control or protection. High-voltage switchgear is divided into several categories, such as electrical products with voltage levels of 3.6kV to 550kV, high-voltage disconnectors and earthing switches, high-voltage load switches, high-voltage automatic reclosers and sectionalizers, high-voltage operating mechanisms, high-voltage explosion-proof distribution devices and high-voltage switchgear.

[0003] For example, the patent with authorization announcement number CN218569576U discloses a high-voltage switch cabinet that prevents misoperation, including several cabinet bodies, with several identification plates respectively provided on the front and back of the cabinet bodies, a switch trolley operation hole and an earthing switch operation hole provided on the front of the cabinet body, a switch trolley operation hole lock structure installed near the switch trolley operation hole on the front of the cabinet body, and an earthing switch operation hole lock structure installed near the earthing switch operation hole on the front of the cabinet body.

[0004] The above patent can effectively avoid wrong intervals and operating errors by marking equipment at the front and back middle positions of the switch cabinet, ensuring that operators and maintenance personnel can correctly identify the operating equipment and ensure the safety of operation and maintenance. The operating hole of the grounding switch is sealed with a lock buckle, and then a password lock is hung. The password of the lock is taken from the position number of the equipment. When operating the equipment, the corresponding password of the equipment is required to open the operating hole for operation, avoiding the occurrence of operator error. However, the disadvantage of the above patent is that the above patent mainly reduces the probability of maintenance personnel's error through marking, and there will be a situation where the maintenance personnel open the switch cabinet without turning off the power.

[0005] Therefore, it is necessary for us to improve such a structure to overcome the above-mentioned defects. Utility Model Content

[0006] The purpose of the utility model is to provide a panel shielding device for preventing misoperation of a high-voltage switch cabinet, so as to solve the problems raised in the above-mentioned background technology.

[0007] To achieve the above objectives, the present invention provides the following technical solutions:

[0008] A high-voltage switchgear anti-misoperation panel shielding device includes a shielding plate; the front section of the shielding plate is provided with a grounding switch operating hole, a door leaf opening hole and an isolating switch operating hole from top to bottom, and the front ends of the grounding switch operating hole and the isolating switch operating hole are both installed with active covers, which are rotatably connected to the shielding plate through a first pin; the opening structure includes a first passive cover and a second passive cover arranged in front and back, and the first passive cover and the second passive cover are used to block the door leaf opening hole on the inner side of the shielding plate; the first passive cover is located at the front end of the second passive cover; the first passive cover is rotatably connected to the inner side of the shielding plate through a second pin; the first passive cover is also transmission-connected to the active cover at the isolating switch operating hole through a first rotating connecting arm; the second passive cover is rotationally connected to the inner side of the shielding plate through a fifth pin, and the second passive cover is also transmission-connected to the active cover at the grounding switch operating hole through a second rotating connecting arm.

[0009] Furthermore, a first connecting portion is provided at one end of the active cover, a circular hole is opened on the first connecting portion, and the axis of the circular hole is arranged along the front-to-back direction, and a first pin passes through the circular hole on the first connecting portion and is fixedly connected to the shielding plate.

[0010] Furthermore, the other end of the active cover is provided with an overlapping portion, and a overlapping platform is provided at the lower end of the overlapping portion, and the overlapping platform is fixedly connected to the shielding plate.

[0011] Furthermore, a second connecting portion is provided on the right side of the first passive cover, a circular hole is opened on the second connecting portion along the front-to-back direction, and a second pin passes through the circular hole on the second connecting portion to be fixedly connected to the shielding plate.

[0012] Furthermore, a third pin is provided on the rear side of the first passive cover, extending rearward near the second pin. The third pin is rotatably connected to the top of the first rotating connecting arm. At the same time, the bottom end of the first rotating connecting arm is rotatably connected to the fourth pin. The fourth pin is fixedly installed on the rear side of the active cover at the operating hole of the isolating switch.

[0013] Furthermore, a third connecting portion is provided on the right side of the second passive cover, a circular hole is opened on the third connecting portion along the front-to-back direction, and a fifth pin passes through the circular hole on the third connecting portion to be fixedly connected to the shielding plate.

[0014] Furthermore, a sixth pin is provided at the front end of the second passive cover, extending forward near the fifth pin. The sixth pin is rotatably connected to the bottom end of the second rotating connecting arm. At the same time, the top end of the second rotating connecting arm is rotatably connected to the sixth pin. The sixth pin is fixedly installed on the rear side of the active cover at the operating hole of the grounding switch.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] The shielding plate can only be opened after the grounding switch and the isolating switch are operated; this prevents the operator from directly opening the door leaf, ensuring the safety of maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a structural diagram of the panel shielding device for preventing incorrect operation of high-voltage switchgear.

[0018] Figure 2 This is a side view of the anti-incorrect operation panel shielding device for high-voltage switchgear.

[0019] Figure 3 This is a schematic structural diagram from another angle of the high-voltage switchgear anti-misoperation panel shielding device.

[0020] Figure 4 for Figure 3 Schematic diagram after removing some structures.

[0021] Figure 5 for Figure 1 A partial enlarged view of point A in the middle.

[0022] Figure 6 for Figure 3 A partial enlarged view of point B in the middle.

[0023] Figure 7 for Figure 4 A partial enlarged view of point C in the middle. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, 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 described embodiments are part of the embodiments of the present invention, not all of the embodiments. The components of the embodiments of the present invention generally described and shown in the drawings here can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the utility model for protection, but merely represents selected embodiments of the present invention. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0025] See also Figure 1-7 , a high-voltage switchgear anti-misoperation panel shielding device, comprising a shielding plate 1;

[0026] The shielding plate 1 is installed at the front end of the operation panel of the high-voltage switch cabinet to shield the operation panel. The advantage of the utility model is that the opening structure 2 of the shielding plate 1 is linked with the operation of the grounding switch and the isolation switch.

[0027] The shielding plate 1 can only be opened after the grounding switch and the isolating switch are operated. This prevents the operator from directly opening the door leaf, ensuring the safety of maintenance.

[0028] Specifically, the front end of the shielding plate 1 is provided with a grounding switch operating hole 3, a door leaf opening hole 4 and an isolating switch operating hole 5 from top to bottom.

[0029] The structures of the grounding switch operating hole 3 and the isolating switch operating hole 5 are similar, and the front ends of the grounding switch operating hole 3 and the isolating switch operating hole 5 are both installed with active sealing covers 6, which are rotatably connected to the shielding plate 1 through the first pin 602;

[0030] Specifically, a first connecting portion 601 is provided at one end of the active cover 6. A circular hole is formed on the first connecting portion 601, and the axis of the circular hole is arranged along the front-to-back direction. A first pin 602 passes through the circular hole on the first connecting portion 601 and is fixedly connected to the shielding plate 1.

[0031] The other end of the active cover 6 is provided with a lap portion 603, and a lap platform 604 is provided at the lower end of the lap portion 603, and the lap platform 604 is fixedly connected to the shielding plate 1;

[0032] The opening structure 2 includes a first passive cover 201 and a second passive cover 202 arranged in front and back. The first passive cover 201 and the second passive cover 202 are used to block the door opening hole 4 on the inner side of the shielding plate 1; the first passive cover 201 is located at the front end of the second passive cover 202;

[0033] like Figure 4 and 7 As shown, the first passive cover 201 is rotatably connected to the inner side of the shielding plate 1 through the second pin 204;

[0034] Specifically, a second connecting portion 203 is provided on the right side of the first passive cover 201. A circular hole is opened on the second connecting portion 203 along the front-to-back direction. A second pin 204 passes through the circular hole on the second connecting portion 203 and is fixedly connected to the shielding plate 1.

[0035] A third pin 205 is provided on the rear side of the first passive cover 201, extending rearward near the second pin 204. The third pin 205 is rotatably connected to the top of the first rotating connecting arm 206. At the same time, the bottom end of the first rotating connecting arm is rotatably connected to the fourth pin 207. The fourth pin 207 is fixedly mounted on the rear side of the active cover 6 at the operating hole 5 of the disconnector.

[0036] When the active cover 6 at the isolating switch operating hole 5 is opened, the active cover 6 flips upward, and the active cover 6 pushes the first passive cover 201 to flip upward through the first rotating connecting arm 206, and the first passive cover 201 is opened;

[0037] like Figure 3 and 6 As shown, the second passive cover 202 is rotatably connected to the inner side of the shielding plate 1 through the fifth pin 208;

[0038] Specifically, a third connecting portion 209 is provided on the right side of the second passive cover 202. A circular hole is opened on the third connecting portion 209 along the front-to-back direction. The fifth pin 208 passes through the circular hole on the third connecting portion 209 and is fixedly connected to the shielding plate 1.

[0039] A sixth pin 210 is provided at the front end of the second passive cover 202, extending forward near the fifth pin 208. The sixth pin 210 is rotatably connected to the bottom end of the second rotating connecting arm 211. At the same time, the top end of the second rotating connecting arm 211 is rotatably connected to the seventh pin 212. The seventh pin 212 is fixedly mounted on the rear side of the active cover 6 at the grounding switch operating hole 3.

[0040] When the active cover 6 at the grounding switch operating hole 3 is opened, the active cover 6 flips upward, and the active cover 6 pulls the second passive cover 202 to flip upward through the second rotating connecting arm 211, and the second passive cover 202 is opened;

[0041] During maintenance, first confirm that the upper power supply is out, then open the active cover 6 at the isolating switch operating hole 5, insert the operating handle into the isolating switch operating hole 5, and operate the isolating switch in the high-voltage switch cabinet to open; at this time, the first passive cover 201 is opened;

[0042] Then open the active cover 6 at the grounding switch operating hole 3, insert the operating handle into the grounding switch operating hole 3 to operate the grounding switch in the high-voltage switch cabinet to close, and at this time the second passive cover 202 is opened;

[0043] At this time, the two passive covers on the rear side of the door leaf opening hole 4 are both opened. At this time, the key can be inserted to open the door lock on the rear side of the door leaf opening hole 4, thereby opening the shielding plate 1 for maintenance operations.

[0044] In the description of the present invention, it should be noted that the terms "upper," "lower," "inner," "outer," "left," "right," and the like indicate positions or locations based on the positions shown in the accompanying drawings, or the positions or locations in which the product of the present invention is typically placed when in use, or the positions or locations commonly understood by those skilled in the art. These terms are intended solely to facilitate the description of the present invention and simplify the description, and are not intended to indicate or imply that the devices or components referred to must have a specific position, be constructed, or operate in a specific position. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first," "second," and the like are used solely to distinguish descriptions and should not be construed as indicating or implying relative importance. In the description of the present invention, it should also be noted that, unless otherwise expressly specified or limited, terms such as "disposed" and "connected" should be understood broadly. For example, "connected" can mean a fixed connection, a detachable connection, or an integral connection; a mechanical connection or an electrical connection; a direct connection, an indirect connection through an intermediate medium, or internal communication between two components. A person of ordinary skill in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

Claims

1. A high-voltage switchgear anti-misoperation panel shielding device, comprising a shielding plate; characterized in that: The front section of the shielding plate is provided with a grounding switch operating hole, a door leaf opening hole, and an isolating switch operating hole from top to bottom. Active covers are installed at the front ends of the grounding switch operating hole and the isolating switch operating hole. The active covers are rotatably connected to the shielding plate via a first pin. The opening structure includes a first passive cover and a second passive cover arranged at the front and rear ends. The first passive cover and the second passive cover are used to block the door leaf opening hole on the inner side of the shielding plate. The first passive cover is located at the front end of the second passive cover. The first passive cover is rotatably connected to the inner side of the baffle plate through a second pin; the first passive cover is also transmission-connected to the active cover at the operating hole of the isolating switch through a first rotation connecting arm; the second passive cover is rotatably connected to the inner side of the baffle plate through a fifth pin, and the second passive cover is also transmission-connected to the active cover at the operating hole of the grounding switch through a second rotation connecting arm.

2. The high-voltage switchgear anti-misoperation panel shielding device according to claim 1, characterized in that: A first connecting portion is provided at one end of the active cover. A circular hole is provided on the first connecting portion, and the axis of the circular hole is arranged along the front-to-back direction. A first pin passes through the circular hole on the first connecting portion and is fixedly connected to the shielding plate.

3. The high-voltage switch cabinet anti-misoperation panel shielding device according to claim 1, characterized in that: The other end of the active cover is provided with an overlapping portion, and a overlapping platform is provided at the lower end of the overlapping portion, and the overlapping platform is fixedly connected to the shielding plate.

4. The high-voltage switch cabinet anti-misoperation panel shielding device according to claim 1, characterized in that: A second connecting portion is provided on the right side of the first passive cover. A circular hole is opened on the second connecting portion along the front-to-back direction. The second pin passes through the circular hole on the second connecting portion and is fixedly connected to the shielding plate.

5. The high-voltage switch cabinet anti-misoperation panel shielding device according to claim 4, characterized in that: A third pin is provided on the rear side of the first passive cover, extending rearward near the second pin. The third pin is rotatably connected to the top of the first rotating connecting arm. At the same time, the bottom end of the first rotating connecting arm is rotatably connected to the fourth pin. The fourth pin is fixedly installed on the rear side of the active cover at the operating hole of the isolating switch.

6. The high-voltage switch cabinet anti-misoperation panel shielding device according to claim 1, characterized in that: A third connecting portion is provided on the right side of the second passive cover. A circular hole is opened on the third connecting portion along the front-to-back direction. The fifth pin passes through the circular hole on the third connecting portion and is fixedly connected to the shielding plate.

7. The high-voltage switch cabinet anti-misoperation panel shielding device according to claim 6, characterized in that: A sixth pin is provided at the front end of the second passive cover, extending forward near the fifth pin. The sixth pin is rotatably connected to the bottom end of the second rotating connecting arm. At the same time, the top end of the second rotating connecting arm is rotatably connected to the sixth pin. The sixth pin is fixedly installed on the rear side of the active cover at the operating hole of the grounding switch.

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