Grounding switch interlocking mechanism for high voltage cabinet

Abstract

The utility model provides a high -voltage cabinet earthing switch interlocking mechanism, include: fixed base and be located in its inside the installation plate of inverted U shape of U shape, fixedly installed in the earthing switch body of installation plate top, be equipped with the interlocking mechanism for and high -voltage cabinet cooperation on the earthing switch body, the two groups of plug -in holes of being opened in fixed base and installation plate both sides are penetrated. Through the rotation hand wheel one drives the rotation of bidirectional screw rod, make the slider relative movement close, and through the connecting rod drive movable plate along the slide of spacing rod, make the plug -in post plug -in pass through the plug -in hole, to complete the installation of earthing switch body, through the reverse hand wheel one drives the reverse of bidirectional screw rod, make the slider relative movement away, and through the connecting rod drive movable plate movement, can make the plug -in post and plug -in hole separate and dismantle earthing switch body, therefore realize the effect of convenient installation and dismantling to earthing switch body, simple and convenient operation, effectively improved the maintenance efficiency and use effect of high -voltage cabinet.

Description

Technical Field

[0001] This utility model relates to the field of high-voltage switchgear technology, specifically to a grounding switchgear grounding interlocking mechanism. Background Technology

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

[0003] The known authorized patent application number CN201922015877.9 discloses a switchgear and its grounding switch and the interlocking device between the grounding switch and the rear door. The background technology of the patent states that "traditionally, in order to meet the withstand voltage requirements, an insulating partition is generally set on the metal shaft of the rear door to overcome the insufficient air clearance relative to the ground. However, at present, there is a lack of effective detection methods, the insulation performance of the insulating partition cannot be guaranteed, and the insulating partition is very easy to get damp and lose its insulation. After long-term operation of the switchgear, the insulation performance will also decrease, which can easily cause switchgear failure and affect the safe operation of the power grid." Therefore, the technical solution to this problem is "including the interlocking device between the grounding switch and the rear door, which includes a rear support, a front support and an interlocking shaft assembly", etc.

[0004] However, in implementing the relevant technologies, the following problems were found in the existing technical solutions: When using the existing technology, the grounding switch is usually fixed with bolts, which is inconvenient for convenient installation. When disassembling and maintaining the grounding switch, special tools are required to tighten the bolts one by one for installation and disassembly. The operation process is cumbersome and time-consuming, which can increase the maintenance, installation and disassembly time of the grounding switch, thereby reducing the maintenance efficiency and use effect of the high-voltage switchgear. Utility Model Content

[0005] This utility model proposes a grounding switch interlocking mechanism for high-voltage switchgear, which solves the problem of inconvenient installation of grounding switches in related technologies.

[0006] The technical solution of this utility model is as follows: a grounding switch interlocking mechanism for a high-voltage switchgear, comprising: a U-shaped fixed base and an inverted U-shaped mounting plate disposed inside it;

[0007] A grounding switch body is fixedly installed on the top of the mounting plate, and the grounding switch body is provided with an interlocking mechanism for cooperating with the high-voltage cabinet;

[0008] Two sets of insertion holes are provided on both sides of the fixed base and the mounting plate;

[0009] Two sets of limiting rods are fixedly installed on both sides of the inner wall of the mounting plate;

[0010] A movable plate is slidably connected to the surface of each set of limit rods, and the two movable plates move relative to each other through a linear mechanism provided on the mounting plate;

[0011] And a plug-in post that is fixedly installed on one side of the movable plate and plugged into the plug hole.

[0012] Preferably, the linear mechanism includes two connecting blocks fixedly installed on the inner top wall of the mounting plate, a bidirectional screw rotatably connected between the two connecting blocks and with one end movably passing through one of the connecting blocks, a slider threadedly connected to the surface of the bidirectional screw, two sets of connecting rods movably installed on the two sides of the two sliders, and a handwheel fixedly connected to one end of the bidirectional screw. One end of each set of connecting rods is movably connected to the two movable plates respectively.

[0013] Preferably, the interlocking mechanism includes a first bevel gear fixedly mounted on the main shaft surface of the grounding switch body, an interlocking shaft component disposed on one side of the main shaft of the grounding switch body and connected to the high-voltage cabinet, a second bevel gear fixedly mounted on one end of the interlocking shaft component and meshing with the first bevel gear, and an operating component disposed on the grounding switch body for driving the main shaft to rotate.

[0014] The operating components include a fixed block fixedly mounted on the grounding switch body, an operating shaft rotatably connected to the fixed block, a bevel gear three fixedly connected to one end of the operating shaft and meshing with a bevel gear one, and a handwheel two fixedly connected to the other end of the operating shaft.

[0015] Preferably, a positioning mechanism is provided between the fixed base and the mounting plate to reduce the number of position adjustments.

[0016] The positioning mechanism consists of multiple positioning shells fixedly installed on the inner bottom wall of the fixed base, and a positioning block fixedly installed on the inner top wall of the mounting plate and interlocking with the positioning shells.

[0017] Preferably, two mounting blocks are fixedly installed on both sides of the fixed base, and the mounting blocks have through holes and fastening bolts are installed in the through holes.

[0018] The working principle and beneficial effects of this utility model are as follows:

[0019] By rotating the handwheel, the double-ended screw rotates, causing the slider to move closer to the grounding switch. Under the action of the connecting rod, the movable plate slides along the limit rod, allowing the movable plate to drive the plug-in post to insert through the plug-in hole, thus completing the installation and fixing of the grounding switch body. For disassembly, by reversing the handwheel, the double-ended screw rotates in reverse, causing the slider to move away from the grounding switch. The movable plate moves via the connecting rod, allowing the plug-in post and plug-in hole to separate and disassemble the grounding switch body. Therefore, this achieves convenient installation and disassembly of the grounding switch body. The operation is simple and convenient, avoiding the need to tighten the bolts one by one to disassemble and install the grounding switch body, reducing maintenance operation time, and effectively improving the maintenance efficiency and use effect of the high-voltage switchgear. Attached Figure Description

[0020] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0021] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the present invention;

[0022] Figure 2 This is a side view of the three-dimensional structure of the present invention;

[0023] Figure 3 This is a partial three-dimensional structural diagram of the movable plate of this utility model;

[0024] Figure 4 This is a partial three-dimensional structural diagram of the fixed base of this utility model.

[0025] In the diagram: 1. Fixed base; 2. Mounting plate; 3. Grounding switch body; 4. Plug-in hole; 5. Limit rod; 6. Movable plate; 7. Plug-in post; 8. Connecting block; 9. Bidirectional screw; 10. Slider; 11. Connecting rod; 12. Handwheel 1; 13. Bevel gear 1; 14. Interlocking shaft assembly; 15. Bevel gear 2; 16. Fixed block; 17. Operating shaft; 18. Bevel gear 3; 19. Handwheel 2; 20. Positioning shell; 21. Positioning block. Detailed Implementation

[0026] The technical solutions of this utility model will be clearly and completely described below with reference to the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this utility model.

[0027] Example 1

[0028] Please see Figure 1 - Figure 4The high-voltage switch grounding switch interlocking mechanism provided by this utility model includes: a U-shaped fixed base 1 and an inverted U-shaped mounting plate 2 disposed inside it;

[0029] The grounding switch body 3 is fixedly installed on the top of the mounting plate 2. The grounding switch body 3 is provided with an interlocking mechanism for cooperating with the high voltage cabinet.

[0030] Two sets of insertion holes 4 are provided on both sides of the fixed base 1 and the mounting plate 2;

[0031] Two sets of limiting rods 5 are fixedly installed on both sides of the inner wall of the mounting plate 2;

[0032] A movable plate 6 is slidably connected to the surface of each set of limit rods 5, and the two movable plates 6 move relative to each other through a linear mechanism provided on the mounting plate 2;

[0033] And a plug-in post 7 that is fixedly installed on one side of the movable plate 6 and plugged into the plug-in hole 4.

[0034] The linear mechanism includes two connecting blocks 8 fixedly installed on the inner top wall of the mounting plate 2, a bidirectional screw 9 rotatably connected between the two connecting blocks 8 and with one end moving through one of the connecting blocks 8, a slider 10 threadedly connected to the surface of the bidirectional screw 9, two sets of connecting rods 11 movably installed on the two sides of the two sliders 10, and a handwheel 12 fixedly connected to one end of the bidirectional screw 9. One end of each set of connecting rods 11 is movably connected to two movable plates 6 respectively.

[0035] The technical solution provided in this embodiment is as follows: In use, the fixed base 1 is installed in the high-voltage cabinet, and then the mounting plate 2 and the grounding switch body 3 are moved so that the mounting plate 2 is placed inside the fixed base 1, and the plug-in post 7 and the plug-in hole 4 are aligned. Then, by rotating the handwheel 12, the bidirectional screw 9 is rotated, so that the two sliders 10 move closer to each other along the surface of the bidirectional screw 9, thereby driving the connecting rod 11 to move synchronously. Under the action of the connecting rod 11, the movable plates 6 on both sides slide along the surface of the limiting rod 5, so that the movable plates 6 drive the plug-in post 7 to move and pass through the fixed base 1 in sequence. The grounding switch body 3 is installed and fixed by inserting the plug hole 4 on the mounting plate 2. During disassembly, the bidirectional screw 9 is reversed by reversing the handwheel 12, causing the two sliders 10 to move away from each other. The movable plate 6 is then moved by the connecting rod 11, allowing the plug post 7 and plug hole 4 to be separated and the grounding switch body 3 to be disassembled. This achieves the effect of convenient installation and disassembly of the grounding switch body 3. The operation is simple and convenient, avoiding the need to tighten the bolts one by one to disassemble and install the grounding switch body 3. This reduces maintenance operation time and effectively improves the maintenance efficiency and use effect of the high-voltage switch.

[0036] Furthermore, the interlocking mechanism includes a bevel gear 13 fixedly mounted on the main shaft surface of the grounding switch body 3, an interlocking shaft component 14 disposed on one side of the main shaft of the grounding switch body 3 and connected to the high voltage cabinet, a bevel gear 15 fixedly mounted on one end of the interlocking shaft component 14 and meshing with the bevel gear 13, and an operating component disposed on the grounding switch body 3 for driving the main shaft to rotate.

[0037] The operating components include a fixed block 16 fixedly mounted on the grounding switch body 3, an operating shaft 17 rotatably connected to the fixed block 16, a bevel gear 18 fixedly connected to one end of the operating shaft 17 and meshing with a bevel gear 13, and a handwheel 19 fixedly connected to the other end of the operating shaft 17.

[0038] Specifically, the handwheel 19 drives the operating shaft 17 and the bevel gear 18 to rotate, and the bevel gear 18 drives the bevel gear 13 that meshes with it to rotate, thereby causing the main shaft of the grounding switch body 3 to rotate so as to perform closing or opening operations. At the same time, when the bevel gear 13 rotates, it can drive the bevel gear 15 that meshes with it to rotate, thereby driving the interlocking shaft component 14 to run, so as to achieve the function of interlocking the opening and closing operations in the high voltage cabinet door opening and closing state.

[0039] It should be noted that the interlocking shaft component 14 is prior art disclosed in this field. Its specific structure and interlocking effect with the grounding switch body 3 can be found in the utility model patents in the background art index, and will not be described in detail here.

[0040] Furthermore, two mounting blocks are fixedly installed on both sides of the fixed base 1. The mounting blocks have through holes and fastening bolts are installed in the through holes.

[0041] Specifically, by setting up mounting blocks and fastening bolts, it is convenient to install the fixed base 1 inside the high-voltage cabinet.

[0042] Example 2

[0043] Based on Embodiment 1, in this embodiment: a positioning mechanism is provided between the fixed base 1 and the mounting plate 2 to reduce the number of position adjustments.

[0044] The positioning mechanism is fixedly installed on the bottom wall of the fixed base 1 with multiple positioning shells 20, and fixedly installed on the top wall of the mounting plate 2 with a positioning block 21 that is inserted into the positioning shells 20.

[0045] The technical solution provided in this embodiment is as follows: When installing the grounding switch body 3, the positioning block 21 is inserted into the positioning shell 20 to position the installation position, so that the plug hole 4 and the plug post 7 are aligned, which facilitates subsequent fixing. It is not necessary to frequently adjust the position of the mounting plate 2 to align the plug hole 4 and the plug post 7, which reduces the adjustment time and further improves the installation efficiency of the grounding switch body 3.

[0046] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A grounding switch interlocking mechanism for a high-voltage switchgear, characterized in that, include: A U-shaped fixed base (1) and an inverted U-shaped mounting plate (2) located inside it; The grounding switch body (3) is fixedly installed on the top of the mounting plate (2), and the grounding switch body (3) is provided with an interlocking mechanism for cooperating with the high voltage cabinet; Two sets of insertion holes (4) are provided on both sides of the fixed base (1) and the mounting plate (2); Two sets of limiting rods (5) are fixedly installed on both sides of the inner wall of the mounting plate (2); A movable plate (6) is slidably connected to the surface of each set of limiting rods (5), and the two movable plates (6) move relative to each other through a linear mechanism provided on the mounting plate (2); And a plug-in post (7) that is fixedly installed on one side of the movable plate (6) and plugged into the plug hole (4).

2. The high-voltage switchgear grounding interlocking mechanism according to claim 1, characterized in that, The linear mechanism includes two connecting blocks (8) fixedly installed on the inner top wall of the mounting plate (2), a bidirectional screw (9) rotatably connected between the two connecting blocks (8) and with one end moving through one of the connecting blocks (8), a slider (10) threadedly connected to the surface of the bidirectional screw (9), two sets of connecting rods (11) movably installed on the two sides of the two sliders (10), and a handwheel (12) fixedly connected to one end of the bidirectional screw (9). One end of each set of connecting rods (11) is movably connected to two movable plates (6).

3. The high-voltage switchgear grounding interlocking mechanism according to claim 1, characterized in that, The interlocking mechanism includes a bevel gear one (13) fixedly installed on the main shaft surface of the grounding switch body (3), an interlocking shaft component (14) located on one side of the main shaft of the grounding switch body (3) and connected to the high voltage cabinet, a bevel gear two (15) fixedly installed on one end of the interlocking shaft component (14) and meshing with bevel gear one (13), and an operating component located on the grounding switch body (3) for driving the main shaft to rotate.

4. The high-voltage switchgear grounding interlocking mechanism according to claim 3, characterized in that, The operating components include a fixed block (16) fixedly mounted on the grounding switch body (3), an operating shaft (17) rotatably connected to the fixed block (16), a bevel gear three (18) fixedly connected to one end of the operating shaft (17) and meshing with bevel gear one (13), and a handwheel two (19) fixedly connected to the other end of the operating shaft (17).

5. The high-voltage switchgear grounding interlocking mechanism according to claim 1, characterized in that, A positioning mechanism is provided between the fixed base (1) and the mounting plate (2) to reduce the number of position adjustments.

6. The high-voltage switchgear grounding interlocking mechanism according to claim 5, characterized in that, The positioning mechanism is fixedly installed on the bottom wall of the fixed base (1) with multiple positioning shells (20) and a positioning block (21) fixedly installed on the top wall of the mounting plate (2) and interlocked with the positioning shells (20).

7. The high-voltage switchgear grounding interlocking mechanism according to claim 1, characterized in that, Two mounting blocks are fixedly installed on both sides of the fixed base (1). The mounting blocks have through holes and fastening bolts are installed in the through holes.

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