A substation neutral grounding device

Abstract

The utility model relates to the technical field of grounding device provides a substation neutral point grounding device, including device body still include: first conducting pole, fixedly embedded in the inside of device body, first conducting wire, located the top of device body, conducting head, fixedly covered in the bottom outer surface of first conducting wire, the conducting head movable embedding in the inside of device body, the utility model discloses, when using, through the setting of conducting head and push block structure, not only makes when needing to carry out equipment maintenance or replacement, operating personnel can more conveniently dismantle and reinstall grounding device, this reduces the time cost and manpower cost of maintenance, and the design of connecting column and connecting groove ensures the firm connection between first conducting wire and first conducting pole, avoids the loosening phenomenon caused by vibration or external interference, maintains the stability and security of grounding device.

Description

Technical Field

[0001] This utility model relates to the field of grounding device technology, and in particular to a neutral point grounding device for a substation. Background Technology

[0002] The neutral point grounding device in a substation is a core component of the power system grounding system. It is directly related to the safe and stable operation of the power grid, the insulation level of equipment, and personal safety. Its core function is to establish an electrical connection between the neutral point of power equipment such as transformers and generators and the earth through a reasonably designed grounding path, so as to realize fault current conduction, voltage control, and system protection.

[0003] In the current practical application of neutral point grounding devices in substations, the connection between the transformer neutral point and the grounding device generally adopts a transitional connection structure of conductive wire + conductive rod. That is, one end of the conductive wire is first firmly connected to the neutral point terminal of the transformer, and the other end is connected to the conductive rod, which is buried underground to play a key role in diffusing current to the grounding body.

[0004] However, existing conductive wires and conductive rods are usually connected by welding. However, this welding connection method has certain inconveniences in subsequent maintenance and disassembly. Since the welded joint is a fixed connection that cannot be disassembled, when it is necessary to replace aging conductive wires or inspect the corrosion of conductive rods, maintenance personnel must first use special tools (such as angle grinders and gas cutting guns) to destructively cut the weld. This makes the entire disassembly too laborious and requires multiple people to work together, which seriously affects the efficiency of maintenance work. Utility Model Content

[0005] The purpose of this invention is to solve the problem that the welding method used in the prior art makes the entire disassembly too laborious and requires multiple people to work together, which seriously affects the efficiency of maintenance work.

[0006] To achieve the above objectives, this utility model adopts the following technical solution: a substation neutral point grounding device, comprising a device body, and further comprising: The first conductive rod is fixedly embedded inside the device body; The first conductive line is located at the top of the device body; A conductive head is fixedly sleeved on the bottom outer surface of the first conductive wire, and the conductive head is movably embedded inside the device body; A connecting post is fixedly installed at the bottom of the conductive head; A connecting groove is formed on the inner top side of the first conductive rod, and the connecting post matches the connecting groove. Both push blocks are fixedly connected to the outer surface of the conductive head; Both push blocks are slidably connected inside the main body of the device; Both movable rods are slidably connected inside the main body of the device; Both movable rods are capable of sliding left and right inside the device body.

[0007] In a preferred embodiment, the bottom outer sides of both push blocks are slidably connected to the top inner side of the movable rod, and a connecting plate is fixedly installed on the opposite sides of both movable rods; The bottom outer sides of the two push blocks and the top inner sides of the two movable rods are both inclined.

[0008] The technical effect of adopting the above-mentioned further solution is that the movable rod can be squeezed outward by pushing the block.

[0009] In a preferred embodiment, both of the push blocks have a fixing groove inside, and both of the movable rods are matched with the fixing groove.

[0010] The technical effect of adopting the above-mentioned further solution is that the movable rod can be embedded in the fixed groove to fix the conductive head to the first conductive rod.

[0011] In a preferred embodiment, a return spring is fixedly installed on one side of each of the two connecting plates, and the other end of each of the two return springs is fixedly installed on the outer surface of the device body. Both return springs are movably sleeved on the outer surface of the movable rod.

[0012] The technical effect of adopting the above-mentioned further solution is that the extension can be achieved by pulling the return spring through the connecting plate.

[0013] In a preferred embodiment, a plurality of conductive sheets are fixedly embedded inside the first conductive rod, and a second conductive wire is fixedly connected to the outer surface of each of the plurality of conductive sheets; The outer surfaces of multiple second conductive wires are fixedly embedded inside the device body.

[0014] The technical effect of adopting the above-mentioned further solution is that the second conductive wire can be made conductive through the conductive sheet.

[0015] In one preferred embodiment, the other end of each of the plurality of second conductive wires is fixedly connected to a second conductive rod, and a plurality of connectors are fixedly installed on the outer surface of the device body.

[0016] The technical effect of adopting the above-mentioned further solution is that the second conductive rod can be made conductive through the second conductive wire.

[0017] In a preferred embodiment, each of the multiple connectors has a slider slidably connected inside, and multiple second conductive rods are fixedly embedded inside the slider. Among them, multiple second conductive rods can slide through the cooperation of the slider and the connector.

[0018] The technical effect of adopting the above-mentioned further solution is that it allows the slider to slide inside the connector.

[0019] In a preferred embodiment, the interior of each of the multiple sliders is threaded with bolts, and the interior of each of the multiple connectors is provided with multiple threaded grooves; Among them, multiple bolts are matched with multiple thread grooves.

[0020] The technical effect of adopting the above-mentioned further solution is that the bolt can be rotated so that it can be embedded into the inside of the threaded groove to fix the position of the slider.

[0021] Compared with the prior art, the advantages and positive effects of this utility model are as follows: 1. In use, the conductive head and pushing block structure of this utility model not only make it easier for operators to disassemble and reinstall the grounding device when equipment maintenance or replacement is required, thus reducing maintenance time and labor costs, but also ensure a stable connection between the first conductive wire and the first conductive rod through the design of the connecting column and connecting groove, avoiding loosening caused by vibration or external interference, maintaining the stability and safety of the grounding device. This solves the problem of the welding method used in the prior art, which makes the entire disassembly too laborious and requires multiple people to operate together, seriously affecting the efficiency of maintenance work.

[0022] 2. In use, this utility model, through the arrangement of the conductive sheet and the second conductive rod structure, not only provides good stability, but the triangular arrangement of the second conductive rod can also distribute pressure when inserted into the ground, reducing the risk of tilting or collapsing. Simultaneously, it can efficiently guide a portion of the current into the second conductive rod, thereby transmitting it to the ground. This design ensures effective current conduction and improves the system's conductivity. Attached Figure Description

[0023] Figure 1 A rear-view three-dimensional structural diagram of a substation neutral grounding device provided by this utility model; Figure 2 A cross-sectional three-dimensional structural diagram of the device body in a substation neutral grounding device provided by this utility model; Figure 3 A cross-sectional three-dimensional structural schematic diagram of the first conductive rod in a substation neutral point grounding device provided by this utility model; Figure 4 A partial three-dimensional structural diagram of a substation neutral point grounding device provided by this utility model. Figure 1 ; Figure 5 A partial three-dimensional structural diagram of a substation neutral point grounding device provided by this utility model. Figure 2 .

[0024] Legend: 1. Device body; 101. First conductive rod; 102. First conductive wire; 103. Conductive head; 104. Connecting post; 105. Connecting groove; 106. Push block; 107. Movable rod; 108. Return spring; 109. Connecting plate; 110. Fixing groove; 2. Conductive sheet; 201. Second conductive wire; 202. Connector; 203. Slider; 204. Second conductive rod; 205. Threaded groove; 206. Bolt. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Example 1, please refer to Figure 1-5This utility model provides a technical solution: a substation neutral point grounding device, including a device body 1, and further comprising: a first conductive rod 101, fixedly embedded inside the device body 1; a first conductive wire 102, located at the top of the device body 1; a conductive head 103, fixedly sleeved on the bottom outer surface of the first conductive wire 102, and movably embedded inside the device body 1; a connecting post 104, fixedly installed at the bottom of the conductive head 103; a connecting groove 105, formed on the inner top side of the first conductive rod 101, with the connecting post 104 matching the connecting groove 105; two pushing blocks 106, both fixedly connected to the outer surface of the conductive head 103; wherein, both pushing blocks 106 are slidably connected inside the device body 1; and two movable rods 107 are slidably connected to... Inside the device body 1, both movable rods 107 can slide left and right inside the device body 1. The bottom outer sides of both push blocks 106 are slidably connected to the top inner sides of the movable rods 107. Connecting plates 109 are fixedly installed on opposite sides of both movable rods 107. The bottom outer sides of both push blocks 106 and the top inner sides of both movable rods 107 are inclined. Fixed grooves 110 are opened inside both push blocks 106. Both movable rods 107 are matched with fixed grooves 110. Return springs 108 are fixedly installed on opposite sides of both connecting plates 109. The other ends of both return springs 108 are fixedly installed on the outer surface of the device body 1. Both return springs 108 are movably sleeved on the outer surface of the movable rods 107.

[0027] In this embodiment, during use, the operator can first place the first conductive wire 102 on top of the device body 1 and press down on the first conductive wire 102 so that the conductive head 103 at its bottom can be embedded into the interior of the device body 1 and fit against the top of the first conductive rod 101. At the same time, the connecting post 104 can be embedded into the connecting groove 105 inside the first conductive rod 101 to connect the first conductive wire 102 and the first conductive rod 101. When the conductive head 103 is embedded into the interior of the device body 1, the pushing block 106 can be simultaneously embedded into the interior of the device body 1, and the bottom of the pushing block 106 can fit against the top of the movable rod 107. At the same time, the operator can continue to press down on the conductive head 103, so that the bottom of the pushing block 106 slides on the inner side of the top of the movable rod 107. Thus, when the pushing block 106 slides, it can squeeze the movable rod 107 outward. When the movable rod 107 is squeezed, it can push the movable rod 107 outward from the interior of the device body 1. The connecting post 104 slides outwards and can extend by pulling the return spring 108 through the connecting plate 109. When the connecting post 104 is embedded in the bottom of the connecting groove 105, the return spring 108 can be reset. At the same time as it resets, the connecting plate 109 can push the movable rod 107 to slide inwards, so that the movable rod 107 is embedded in the inside of the fixed groove 110, so that the first conductive wire 102 is fixedly connected to the first conductive rod 101 inside the device body 1. The structure of the conductive head 103 and the push block 106 not only makes it easier for operators to disassemble and reinstall the grounding device when equipment maintenance or replacement is required, but also reduces the time and labor costs of maintenance. At the same time, the design of the connecting post 104 and the connecting groove 105 ensures a stable connection between the first conductive wire 102 and the first conductive rod 101, avoiding loosening caused by vibration or external interference, and maintaining the stability and safety of the grounding device.

[0028] Example 2, as Figure 1-5 As shown, a plurality of conductive sheets 2 are fixedly embedded inside the first conductive rod 101, and a second conductive wire 201 is fixedly connected to the outer surface of each of the conductive sheets 2. The outer surfaces of the plurality of second conductive wires 201 are fixedly embedded inside the device body 1, and the other ends of the plurality of second conductive wires 201 are fixedly connected to a second conductive rod 204. A plurality of connectors 202 are fixedly installed on the outer surface of the device body 1. A slider 203 is slidably connected inside the plurality of connectors 202, and a plurality of second conductive rods 204 are fixedly embedded inside the sliders 203. The plurality of second conductive rods 204 can slide through the cooperation of the sliders 203 and the connectors 202. Bolts 206 are threadedly connected inside the plurality of sliders 203, and a plurality of threaded grooves 205 are formed inside the plurality of connectors 202. The plurality of bolts 206 are matched with the plurality of threaded grooves 205.

[0029] In this embodiment, after the device body 1 is connected, the operator can first push the second conductive rod 204 outward to drive the slider 203 to slide outward inside the connector 202, adjusting the position of the second conductive rod 204. After the position of the second conductive rod 204 is adjusted, the operator can rotate the bolt 206 to embed it into the threaded groove 205 to fix the position of the second conductive rod 204. Then, the operator can insert the first conductive rod 101 and the second conductive rod 204 in the device body 1 into the ground to conduct electricity. Since the second conductive rod 204 is... The triangular shape ensures the stability of the device body 1 when inserted into the ground. When the first conductive rod 101 receives current, part of the current can be diverted to the second conductive rod 204 through the cooperation of the conductive sheet 2 and the second conductive wire 201. This second conductive rod 204 then diverts part of the current to the ground. The structure of the conductive sheet 2 and the second conductive rod 204 not only provides good stability, but the triangular arrangement of the second conductive rod 204 also disperses pressure when inserted into the ground, reducing the risk of tilting or collapsing. Simultaneously, it efficiently diverts some of the current to the second conductive rod 204, thus transmitting it to the ground. This design ensures effective current diversion and improves the system's conductivity.

[0030] Working principle: In use, the operator first places the first conductive wire 102 on top of the device body 1 and presses it down so that the conductive head 103 at its bottom can be embedded into the interior of the device body 1 and fit against the top of the first conductive rod 101. At the same time, the connecting post 104 can be embedded into the connecting groove 105 inside the first conductive rod 101 to connect the first conductive wire 102 and the first conductive rod 101. When the conductive head 103 is embedded into the interior of the device body 1, the pushing block 106 can be embedded into the interior of the device body 1 simultaneously, and the bottom of the pushing block 106 can fit against the top of the movable rod 107. The operator can continue to press down the conductive head 103 so that the bottom of the pushing block 106 slides on the inner side of the top of the movable rod 107. As the pushing block 106 slides, it can squeeze the movable rod 107 outward. When the movable rod 107 is squeezed, it can push outward from inside the device body 1. The device slides to the side and can extend the return spring 108 by pulling the connecting plate 109. When the connecting post 104 is embedded in the bottom of the connecting groove 105, the return spring 108 can be reset. At the same time as it resets, the connecting plate 109 can push the movable rod 107 to slide inward, so that the movable rod 107 is embedded in the inside of the fixed groove 110, so that the first conductive wire 102 is fixedly connected to the first conductive rod 101 inside the device body 1. The structure of the conductive head 103 and the push block 106 not only makes it easier for operators to disassemble and reinstall the grounding device when equipment maintenance or replacement is required, but also reduces the time and labor costs of maintenance. At the same time, the design of the connecting post 104 and the connecting groove 105 ensures a stable connection between the first conductive wire 102 and the first conductive rod 101, avoiding loosening caused by vibration or external interference, and maintaining the stability and safety of the grounding device. In use, after the device body 1 is connected, the operator can first push the second conductive rod 204 outward to cause the slider 203 to slide outward inside the connector 202, adjusting the position of the second conductive rod 204. After the position of the second conductive rod 204 is adjusted, the operator can rotate the bolt 206 to embed it into the threaded groove 205 to fix the position of the second conductive rod 204. Then, the operator can insert the first conductive rod 101 and the second conductive rod 204 in the device body 1 into the ground to conduct electricity. Because the second conductive rod 204 is... The triangular shape ensures the stability of the device body 1 when inserted into the ground. When the first conductive rod 101 receives current, part of the current can be diverted to the second conductive rod 204 through the cooperation of the conductive sheet 2 and the second conductive wire 201. This second conductive rod 204 then diverts part of the current to the ground. The structure of the conductive sheet 2 and the second conductive rod 204 not only provides good stability, but the triangular arrangement of the second conductive rod 204 also disperses pressure when inserted into the ground, reducing the risk of tilting or collapsing. Simultaneously, it efficiently diverts some of the current to the second conductive rod 204, thus transmitting it to the ground. This design ensures effective current diversion and improves the system's conductivity.

[0031] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the present utility model.

Claims

1. A substation neutral point grounding device, comprising a device body (1), characterized in that, Also includes: The first conductive rod (101) is fixedly embedded inside the device body (1); The first conductive line (102) is located on the top of the device body (1); The conductive head (103) is fixedly sleeved on the bottom outer surface of the first conductive wire (102), and the conductive head (103) is movably embedded inside the device body (1); A connecting post (104) is fixedly installed at the bottom of the conductive head (103); A connecting groove (105) is formed on the inner top side of the first conductive rod (101), and the connecting post (104) matches the connecting groove (105); Both push blocks (106) are fixedly connected to the outer surface of the conductive head (103); Both push blocks (106) are slidably connected inside the device body (1); Both movable rods (107) are slidably connected inside the device body (1); Both movable rods (107) are capable of sliding left and right inside the device body (1).

2. A substation neutral point grounding device according to claim 1, characterized in that: The bottom outer sides of the two push blocks (106) are slidably connected to the top inner side of the movable rod (107), and a connecting plate (109) is fixedly installed on the opposite side of the two movable rods (107). The bottom outer sides of the two push blocks (106) and the top inner sides of the two movable rods (107) are both inclined.

3. A substation neutral point grounding device according to claim 2, characterized in that: Both of the push blocks (106) have a fixed groove (110) inside, and both of the movable rods (107) are matched with the fixed groove (110).

4. A substation neutral point grounding device according to claim 2, characterized in that: A return spring (108) is fixedly installed on one side of each of the two connecting plates (109), and the other end of each of the two return springs (108) is fixedly installed on the outer surface of the device body (1). Both return springs (108) are movably sleeved on the outer surface of the movable rod (107).

5. A substation neutral point grounding device according to claim 1, characterized in that: The first conductive rod (101) has multiple conductive sheets (2) fixedly embedded inside, and the outer surfaces of the multiple conductive sheets (2) are all fixedly connected with second conductive wires (201). The outer surfaces of multiple second conductive wires (201) are fixedly embedded inside the device body (1).

6. A substation neutral grounding device according to claim 5, characterized in that: The other end of each of the multiple second conductive wires (201) is fixedly connected to a second conductive rod (204), and multiple connectors (202) are fixedly installed on the outer surface of the device body (1).

7. A substation neutral point grounding device according to claim 6, characterized in that: Multiple connectors (202) are slidably connected to sliders (203) inside, and multiple second conductive rods (204) are fixedly embedded inside the sliders (203); Among them, multiple second conductive rods (204) can slide through the cooperation of slider (203) and connector (202).

8. A substation neutral point grounding device according to claim 7, characterized in that: Each of the multiple sliders (203) is internally threaded with bolts (206), and each of the multiple connectors (202) is internally provided with multiple threaded grooves (205). Among them, multiple bolts (206) are matched with multiple threaded grooves (205).

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