A gas insulated switchgear safety fence structure

Abstract

The utility model discloses a kind of gas-insulated switchgear safety fence structures, comprising: multiple spliced fence head-to-tail connection formed safety fence;With multiple spliced fence detachable connection of multiple detection alarm components, multiple detection alarm components are evenly distributed along the periphery of safety fence, when maintenance personnel approaches safety fence, detection alarm component triggers and alarms;Multiple detection alarm components include: embedded in the electronic tag of maintenance personnel's card;Label reader is compatible with electronic tag;With the drive circuit of label reader electrical connection;With the audible and light alarm of drive circuit electrical connection;Label reader, drive circuit and audible and light alarm are electrically connected with battery.The scheme of the utility model, after maintenance personnel approaches safety fence, electronic tag enters the reading range of label reader, label reader triggers, drive circuit controls audible and light alarm to carry out audible and light alarm according to the trigger signal of label reader, reminds maintenance personnel not to approach, and safety is high.

Description

Technical Field

[0001] This utility model relates to the field of auxiliary tools for power maintenance, and specifically to a safety fence structure for gas-insulated switchgear. Background Technology

[0002] In the operation and maintenance of power systems, the safe maintenance of GIS (Gas Insulated Switchgear) equipment is crucial. Due to its compact modular design and efficient insulation performance, GIS equipment is widely used in modern substations. However, the layout characteristics of GIS equipment also present some challenges. Its complex internal structure and the lack of clear disconnection points between de-energized and operating equipment make it difficult for maintenance personnel to visually identify the operating status of the equipment, increasing the risk of accidentally entering enclosed areas. This risk is particularly pronounced in densely populated substations.

[0003] Currently, the most common method of fencing isolation at power GIS equipment maintenance sites relies mainly on physical barriers and simple warning signs. This method has many shortcomings, such as a lack of proactive early warning capabilities and limited warning effectiveness, which can easily lead to maintenance personnel accidentally entering the fenced area and causing safety accidents. This is especially true when the GIS equipment has multiple air chambers, where the risk of maintenance personnel entering the wrong compartment is extremely high.

[0004] The shortcomings of traditional fencing methods: Currently, the most common fencing method used at power GIS equipment maintenance sites relies mainly on physical barriers and simple warning signs. This method has the following problems:

[0005] Lacking proactive early warning capabilities, it cannot issue an alarm in a timely manner when maintenance personnel accidentally enter the fence.

[0006] The warning effect is limited and it is difficult to attract enough attention from maintenance personnel, especially in complex maintenance sites and noisy environments. Utility Model Content

[0007] This utility model provides a safety fence structure for gas-insulated switchgear. When maintenance personnel approach the safety fence, the electronic tag enters the reading range of the tag reader, triggering the tag reader. The drive circuit controls the audible and visual alarm based on the trigger signal from the tag reader to remind maintenance personnel not to approach, thus ensuring the safety of maintenance personnel.

[0008] To solve the above-mentioned technical problems, the technical solution of this utility model is as follows:

[0009] This utility model provides a safety fence structure for gas-insulated switchgear, comprising:

[0010] A safety fence formed by connecting multiple interlocking fencing sections end to end;

[0011] Multiple detection and alarm components are detachably connected to multiple splicing fences. The multiple detection and alarm components are evenly distributed around the perimeter of the safety fence. When maintenance personnel approach the safety fence, the detection and alarm components are triggered and an alarm is sounded.

[0012] Multiple detection and alarm components include:

[0013] Electronic tags embedded in the maintenance personnel's name tags;

[0014] A tag reader, which is adapted to the electronic tag;

[0015] The drive circuit is electrically connected to the tag reader;

[0016] An audible and visual alarm electrically connected to the drive circuit;

[0017] The battery, the tag reader, the drive circuit, and the audible and visual alarm are all electrically connected to the battery.

[0018] Optionally, the driving circuit includes:

[0019] The transistor's base is electrically connected to the tag reader's output interface via a first resistor. The tag reader's power interface is electrically connected to the positive terminal of the battery, and the transistor's emitter is electrically connected to the negative terminal of the battery.

[0020] The relay has its coil's positive terminal electrically connected to the positive terminal of the battery, its coil's negative terminal electrically connected to the collector of the transistor, its common contact electrically connected to the positive terminal of the battery, its normally open contact electrically connected to the positive terminal of the audible and visual alarm, and its negative terminal electrically connected to the negative terminal of the battery.

[0021] A diode, wherein the positive terminal of the diode is electrically connected to the negative terminal of the relay coil, and the negative terminal of the diode is electrically connected to the positive terminal of the relay coil.

[0022] Optionally, the distance between connected detection alarm components is less than the reading range of the tag reader.

[0023] Optional, multiple modular fencing options include:

[0024] The first and second columns are set vertically;

[0025] Multiple crossbeams connecting the first column and the second column;

[0026] Multiple longitudinal beams connecting multiple horizontal beams;

[0027] A connecting column that connects to the outside of the first column, the connecting column extending horizontally;

[0028] A plug-in post connected to the connecting post, the plug-in post extending vertically;

[0029] A connecting plate that connects to the outer side of the second column, the connecting plate extending horizontally;

[0030] A connector tube is connected to the connecting plate, and the connector tube is inserted into the connector post.

[0031] Optionally, multiple of the connecting post, the plug post, the connecting plate, and the plug pipe are provided.

[0032] Optionally, both the first column and the second column are connected to a base at their bottom ends.

[0033] Optionally, the multiple detection alarm components also include:

[0034] The support plate is detachably connected to the crossbeam, and the tag reader, the drive circuit, and the battery are all mounted on the support plate.

[0035] Optionally, a connecting frame is provided on the back of the bearing plate. The connecting frame has an L-shaped structure. A receiving cavity for accommodating the crossbeam is formed between the horizontal and vertical parts of the connecting frame. A fastening bolt is threaded onto the vertical part of the connecting frame. The end of the fastening bolt extends into the receiving cavity and abuts against the crossbeam.

[0036] Optionally, the first column, the second column, the crossbeam, the longitudinal beam, and the bearing plate are all made of insulating material.

[0037] The above-described solution of this utility model has at least the following beneficial effects:

[0038] In the above-described solution of this utility model, when maintenance personnel approach the safety fence, the electronic tag enters the reading range of the tag reader, triggering the tag reader. The drive circuit then controls the audible and visual alarm to sound and light, reminding maintenance personnel not to approach and ensuring their safety. Attached Figure Description

[0039] Figure 1 This is a three-dimensional structural diagram of the safety fence structure for gas-insulated switchgear provided in an embodiment of this utility model;

[0040] Figure 2 This is a three-dimensional structural diagram of the spliced ​​fence in the safety fence structure for gas-insulated switchgear provided in an embodiment of this utility model;

[0041] Figure 3 This is a schematic diagram of the installation structure of the bearing plate in the safety fence structure for gas-insulated switchgear provided in an embodiment of this utility model;

[0042] Figure 4 This is a circuit diagram of the drive circuit in the safety fence structure of the gas-insulated switchgear provided in an embodiment of this utility model.

[0043] The annotations in the attached figures are explained as follows:

[0044] 1. Interlocking fence; 11. First post; 12. Second post; 13. Horizontal beam; 14. Longitudinal beam; 15. Connecting post; 16. Insertion post; 17. Insertion pipe; 18. Base; 19. Connecting plate; 2. Detection and alarm components; 21. Tag reader; 22. Drive circuit; 23. Audible and visual alarm; 24. Battery; 25. Support plate; 26. Connecting frame; 27. Fastening bolt; R1. First resistor; Q1. Transistor; D1. Diode; K1. Relay. Detailed Implementation

[0045] Exemplary embodiments of the present disclosure will now be described in more detail with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.

[0046] like Figures 1-4 As shown, this utility model provides a safety fence structure for gas-insulated switchgear, comprising:

[0047] A safety fence formed by connecting multiple spliced ​​fences end to end;

[0048] Multiple detection and alarm components 2 are detachably connected to multiple splicing fences 1. The multiple detection and alarm components 2 are evenly distributed around the perimeter of the safety fence. When maintenance personnel approach the safety fence, the detection and alarm components 2 are triggered and an alarm is sounded.

[0049] Multiple detection alarm components 2 include:

[0050] Electronic tags embedded in the maintenance personnel's name tags;

[0051] Tag reader 21, which is compatible with electronic tags;

[0052] The drive circuit 22 is electrically connected to the tag reader 21;

[0053] The audible and visual alarm 23 is electrically connected to the drive circuit 22;

[0054] The battery 24, tag reader 21, drive circuit 22 and audible and visual alarm 23 are all electrically connected to the battery 24.

[0055] In this embodiment, when the gas-insulated switchgear is being repaired, multiple spliced ​​fences 1 are connected end to end to form a safety fence, which is used to enclose the gas-insulated switchgear in operation. The work badges of the repair personnel are embedded with electronic tags. When the repair personnel approach the safety fence, the electronic tags enter the reading range of the tag reader 21, triggering the tag reader 21. The drive circuit 22 controls the audible and visual alarm 23 to sound and light an alarm based on the trigger signal from the tag reader 21, reminding the repair personnel not to approach and ensuring their safety.

[0056] Multiple detection alarm components 2 are set up. As long as maintenance personnel approach the safety fence, at least one tag reader 21 in the detection alarm component 2 will be triggered, and at least one audible and visual alarm 23 will be activated. This can achieve sufficient detection around the safety fence, prevent maintenance personnel from approaching the safety fence, and ensure high safety.

[0057] like Figure 4 As shown, in an optional embodiment of the present invention, the driving circuit 22 includes:

[0058] Transistor Q1 has its base electrically connected to the output interface of tag reader 21 via resistor R1. The power interface of tag reader 21 is electrically connected to the positive terminal of battery 24, and the emitter of transistor Q1 is electrically connected to the negative terminal of battery 24.

[0059] Relay K1 has its coil positive terminal electrically connected to the positive terminal of battery 24, its coil negative terminal electrically connected to the collector of transistor Q1, its common contact electrically connected to the positive terminal of battery 24, its normally open contact electrically connected to the positive terminal of audible and visual alarm 23, and its negative terminal electrically connected to the negative terminal of battery 24.

[0060] Diode D1, the positive terminal of diode D1 is electrically connected to the negative terminal of the coil of relay K1, and the negative terminal of diode D1 is electrically connected to the positive terminal of the coil of relay K1.

[0061] In this embodiment, after the tag reader 21 is triggered, it generates a trigger signal current. The trigger signal current is amplified by the transistor Q1, thereby energizing the coil of the relay K1 and connecting the common contact of the relay K1 with the normally open contact. This connects the circuit formed by the audible and visual alarm 23 and the battery 24, and the audible and visual alarm 23 performs an audible and visual alarm. The diode D1 provides protection to prevent the back electromotive force of the relay K1 coil from breaking down the transistor Q1 when the power is off.

[0062] In an optional embodiment of this invention, the distance between the connected detection alarm components 2 is less than the reading range of the tag reader 21.

[0063] In this embodiment, since the distance between the connected detection alarm components 2 is less than the reading range of the tag reader 21, it can be ensured that when maintenance personnel approach the safety fence, the electronic tag can accurately enter the reading range of the tag reader 21, ensuring accurate detection of whether maintenance personnel are approaching the safety fence and guaranteeing the safety of maintenance personnel.

[0064] like Figure 2 As shown, in an optional embodiment of this utility model, the plurality of splicing fences 1 include:

[0065] The first column 11 and the second column 12 are vertically installed;

[0066] Multiple crossbeams 13 connecting the first column 11 and the second column 12;

[0067] Multiple longitudinal beams 14 are connected between multiple horizontal beams 13;

[0068] A connecting column 15 is connected to the outside of the first column 11, and the connecting column 15 extends horizontally;

[0069] The plug-in post 16 is connected to the connecting post 15 and extends vertically;

[0070] A connecting plate 19 is connected to the outer side of the second column 12, and the connecting plate 19 extends horizontally;

[0071] The insertion tube 17 is connected to the connecting plate 19, and the insertion tube 17 is inserted into the insertion post 16.

[0072] In this embodiment, the main body of the spliced ​​fence 1 is formed by the first column 11, the second column 12, multiple horizontal beams 13, and multiple vertical beams 14. The detachable connection between two spliced ​​fences 1 can be achieved by the plug-in column 16 and the plug-in pipe 17, thereby forming a safety fence by connecting multiple spliced ​​fences 1.

[0073] like Figure 2 As shown, in an optional embodiment of the present invention, multiple connecting posts 15, plug-in posts 16, connecting plates 19, and plug-in pipes 17 are provided.

[0074] In this embodiment, by setting multiple plug-in posts 16 and plug-in pipes 17, the connection stability between the two spliced ​​fences 1 can be ensured.

[0075] like Figure 2 As shown, in an optional embodiment of the present invention, the bottom ends of the first column 11 and the second column 12 are both connected to a base 18.

[0076] In this embodiment, by connecting the base 18 to the bottom of the first column 11 and the second column 12, the stability of the spliced ​​fence 1 can be guaranteed.

[0077] like Figure 2 As shown, in an optional embodiment of the present invention, the plurality of detection alarm components 2 further include:

[0078] The support plate 25 is detachably connected to the crossbeam 13. The tag reader 21, the drive circuit 22, and the battery 24 are all mounted on the support plate 25.

[0079] In this embodiment, by placing the tag reader 21, the drive circuit 22, and the battery 24 on the support plate 25, it is convenient to install and store multiple detection alarm components 2.

[0080] In an optional embodiment of this utility model, a connecting frame 26 is provided on the back of the bearing plate 25. The connecting frame 26 has an L-shaped structure. A receiving cavity for accommodating the crossbeam 13 is formed between the horizontal part and the vertical part of the connecting frame 26. A fastening bolt 27 is threadedly connected to the vertical part of the connecting frame 26. The end of the fastening bolt 27 extends into the receiving cavity and abuts against the crossbeam 13.

[0081] In this embodiment, when installing the bearing plate 25, the connecting bracket 26 is placed on the surface of the crossbeam 13, so that the crossbeam 13 enters the receiving cavity, and the fastening bolt 27 is tightened so that the fastening bolt 27 is in close contact with the crossbeam 13, thereby realizing the connection between the bearing plate 25 and the crossbeam 13.

[0082] In an optional embodiment of this utility model, the first column 11, the second column 12, the crossbeam 13, the longitudinal beam 14, and the bearing plate 25 are all made of insulating material.

[0083] In this embodiment, the use of insulating materials can ensure the safety of the spliced ​​fence 1 when it is in the gas-insulated switchgear, and ensure the safety of maintenance personnel.

[0084] Application of safety fence structures for gas-insulated switchgear:

[0085] Based on the floor area of ​​the gas-insulated switchgear, a corresponding number of splicing fences 1 are selected. The two splicing fences 1 are detachably connected by the insertion of the plug-in post 16 and the plug-in pipe 17. Multiple splicing fences 1 are connected end-to-end to form a safety fence, which encloses the gas-insulated switchgear in operation. When maintenance personnel approach the safety fence, the electronic tag enters the reading range of the tag reader 21, triggering the tag reader 21 and generating a trigger signal current. This trigger signal current is amplified by the transistor Q1, energizing the coil of relay K1. This connects the common contact of relay K1 with its normally open contact, connecting the circuit formed by the audible and visual alarm 23 and the battery 24. The audible and visual alarm 23 then sounds an alarm, reminding maintenance personnel not to approach, ensuring their safety.

[0086] The gas-insulated switchgear safety fence structure provided in the above embodiments of this utility model allows the electronic tag to enter the reading range of the tag reader 21 when maintenance personnel approach the safety fence. The tag reader 21 is triggered, and the drive circuit 22 controls the audible and visual alarm 23 to perform an audible and visual alarm based on the trigger signal from the tag reader 21, reminding maintenance personnel not to approach and ensuring their safety.

[0087] The above description is the preferred embodiment of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications should also be considered within the protection scope of this utility model.

Claims

1. A safety enclosure structure for gas-insulated switchgear, characterized in that: include: Multiple spliced ​​fences (1) are connected end to end to form a safety fence; Multiple detection alarm components (2) are detachably connected to multiple splicing fences (1). The multiple detection alarm components (2) are evenly distributed around the perimeter of the safety fence. When maintenance personnel approach the safety fence, the detection alarm components (2) are triggered and alarms are sounded. Multiple detection alarm components (2) include: Electronic tags embedded in the maintenance personnel's name tags; A tag reader (21) adapted to the electronic tag; The drive circuit (22) is electrically connected to the tag reader (21); A sound and light alarm (23) electrically connected to the drive circuit (22); The battery (24), the tag reader (21), the drive circuit (22) and the audible and visual alarm (23) are all electrically connected to the battery (24).

2. The safety enclosure structure for gas-insulated switchgear according to claim 1, characterized in that, The driving circuit (22) includes: The transistor (Q1) has its base electrically connected to the output interface of the tag reader (21) via a first resistor (R1). The power interface of the tag reader (21) is electrically connected to the positive terminal of the battery (24), and the emitter of the transistor (Q1) is electrically connected to the negative terminal of the battery (24). A relay (K1) is provided, wherein the positive terminal of the coil of the relay (K1) is electrically connected to the positive terminal of the battery (24), the negative terminal of the coil of the relay (K1) is electrically connected to the collector of the transistor (Q1), the common contact of the relay (K1) is electrically connected to the positive terminal of the battery (24), the normally open contact of the relay (K1) is electrically connected to the positive terminal of the audible and visual alarm (23), and the negative terminal of the audible and visual alarm (23) is electrically connected to the negative terminal of the battery (24). A diode (D1) is provided, wherein the positive terminal of the diode (D1) is electrically connected to the negative terminal of the coil of the relay (K1), and the negative terminal of the diode (D1) is electrically connected to the positive terminal of the coil of the relay (K1).

3. The safety enclosure structure for gas-insulated switchgear according to claim 1, characterized in that, The distance between the connected detection alarm components (2) is less than the reading range of the tag reader (21).

4. The safety enclosure structure for gas-insulated switchgear according to claim 1, characterized in that, Multiple spliced ​​fences (1) include: The first column (11) and the second column (12) are set vertically; Multiple crossbeams (13) connecting the first column (11) and the second column (12); Multiple longitudinal beams (14) connecting multiple transverse beams (13); A connecting column (15) is connected to the outside of the first column (11), and the connecting column (15) extends horizontally; A plug-in post (16) is connected to the connecting post (15), and the plug-in post (16) extends vertically; A connecting plate (19) is connected to the outside of the second column (12), and the connecting plate (19) extends horizontally; The insertion tube (17) is connected to the connecting plate (19), and the insertion tube (17) is inserted into the insertion post (16).

5. The safety enclosure structure for gas-insulated switchgear according to claim 4, characterized in that, Multiple of the connecting post (15), the plug post (16), the connecting plate (19), and the plug tube (17) are provided.

6. The safety enclosure structure for gas-insulated switchgear according to claim 4, characterized in that, The bottom ends of the first column (11) and the second column (12) are both connected to a base (18).

7. The safety enclosure structure for gas-insulated switchgear according to claim 4, characterized in that, The multiple detection alarm components (2) also include: The support plate (25) is detachably connected to the crossbeam (13). The tag reader (21), the drive circuit (22), and the battery (24) are all mounted on the support plate (25).

8. The safety enclosure structure for gas-insulated switchgear according to claim 7, characterized in that, A connecting frame (26) is provided on the back of the bearing plate (25). The connecting frame (26) has an L-shaped structure. A receiving cavity for accommodating the crossbeam (13) is formed between the horizontal part and the vertical part of the connecting frame (26). A fastening bolt (27) is threadedly connected to the vertical part of the connecting frame (26). The end of the fastening bolt (27) extends into the receiving cavity and abuts against the crossbeam (13).

9. The safety enclosure structure for gas-insulated switchgear according to claim 7, characterized in that, The first column (11), the second column (12), the crossbeam (13), the longitudinal beam (14), and the bearing plate (25) are all made of insulating material.

Images