Mining electric load grounding high-voltage device
The design of bolts and pins solves the problem of cumbersome grounding wire replacement in high-voltage grounding devices for mining electric loads, enabling rapid installation and replacement, and improving grounding capability and system safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-22
- Publication Date
- 2026-03-20
AI Technical Summary
In existing high-voltage grounding devices for electric loads in mines, the two ends of the grounding wire are fixed between the mounting component and the grounding rod by welding, which makes the replacement process cumbersome and time-consuming, and may damage the device.
The system employs a bolt and pin structure, where the bolts drive the movement of the clamping plate and positioning pin, while the pin drives the movement of the return spring and clamping plate, enabling rapid installation and replacement of the grounding wire. Combined with a double grounding rod structure, it provides stronger grounding protection.
It simplifies the installation and replacement process of grounding wires, reduces time and labor intensity, and improves grounding capacity and system safety.
Smart Images
Figure CN224021069U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of grounding high voltage devices, and in particular to a grounding high voltage device for mining electric loads. Background Technology
[0002] The high-voltage grounding device for electric loads in mines, also known as a high-voltage grounding device or a high-voltage grounding wire for mines, is a grounding protection device for electrical equipment used in mines or similar environments. It is primarily used to ensure that electrical equipment safely conducts current underground through grounding in the event of a fault, thereby preventing safety accidents such as electric shock or fire.
[0003] When using a high-voltage grounding device for mining electric loads, one end of the grounding wire is typically fixed to the mining electrical equipment via a mounting bracket, while the other end is fixed to a grounding rod, which is then inserted into the ground to connect the electrical equipment to the earth. This ensures that in the event of a equipment failure, current can safely flow into the ground through the grounding wire, preventing personnel from being electrocuted. However, in existing high-voltage grounding devices for mining electric loads, both ends of the grounding wire are usually fixed between the mounting bracket and the grounding rod by welding. While this connection method provides a stable electrical connection, it becomes quite cumbersome and time-consuming when the grounding wire is damaged or aged and needs to be replaced. Because the two ends of the grounding wire are fixed by welding, personnel need to use specialized equipment to separate the grounding wire from the mounting bracket and the grounding rod before replacement can be performed. This process not only consumes a lot of time and labor but may also cause some damage to the original device when disassembling the welded parts. Utility Model Content
[0004] The purpose of this invention is to solve the problem that in the existing technology, when the two ends of the grounding wire are fixed between the mounting part and the grounding rod by welding, the process becomes quite cumbersome and time-consuming when the grounding wire is damaged or aged and needs to be replaced.
[0005] To achieve the above objectives, the present invention adopts the following technical solution: a high-voltage grounding device for mining electric loads, comprising a first grounding wire, connecting members provided on both outer surfaces of the two first grounding wires, fixing components provided inside the two connecting members, an mounting component provided on the left side of one of the connecting members, and a first grounding rod provided on the right side of the other connecting member, a sleeve provided on the outer surface of the first grounding rod, a plurality of first support columns fixedly installed on the outer surface of the sleeve, a second support column slidably connected inside the plurality of first support columns, a second grounding rod provided at the other end of the plurality of second support columns, a second bolt threadedly connected inside the plurality of first support columns, a second grounding wire provided on the left side of the plurality of second grounding rods, and the other end of the plurality of second grounding wires provided on the outer surface of the first grounding rod.
[0006] In a preferred embodiment, the fixing component includes a first bolt that is threaded into the interior of the connector.
[0007] The technical effect of adopting the above-mentioned further solution is that the first clamping plate can be moved by the first bolt.
[0008] In a preferred embodiment, the front side of the first bolt is movably connected to the first clamping plate, and the first clamping plate is movably embedded inside the connector.
[0009] The technical effect of adopting the above-mentioned further solution is that it allows the first clamping plate to move inside the connector.
[0010] In a preferred embodiment, two positioning posts are fixedly installed on the rear side of the first clamping plate, and the outer surfaces of the two positioning posts are slidably connected to the interior of the connector.
[0011] The technical effect of adopting the above-mentioned further solution is that the positioning post can be slid inside the connector by pulling the first clamping plate.
[0012] In a preferred embodiment, the fixing assembly further includes two pins and a second clamping plate. The two pins are movably embedded inside the connector, and a return spring is provided on the outer side of each of the two pins.
[0013] The technical effect of adopting the above-mentioned further solution is that the return spring can be moved by pulling the pin.
[0014] In a preferred embodiment, the other ends of both return springs are fixedly mounted on the outer surface of the connector, and the second clamping plate is movably embedded inside the connector.
[0015] The technical effect of adopting the above-mentioned further solution is that the second clamp can be embedded into the interior of the connector and fit against the outer surface of the first grounding wire.
[0016] In a preferred embodiment, two connecting posts are fixedly installed on the rear side of the second clamping plate, and both connecting posts are movably embedded inside the connector.
[0017] The technical effect of adopting the above-mentioned further solution is that the connecting post can be embedded into the positioning groove inside the connecting post through the second clamping plate.
[0018] In a preferred embodiment, both connecting posts are provided with pin holes, and both pin posts are matched with the pin holes.
[0019] The technical effect of adopting the above-mentioned further solution is that the pin can be embedded into the pin hole.
[0020] Compared with the prior art, the advantages and positive effects of this utility model are as follows:
[0021] 1. In use, the design of the first bolt and pin structure makes it easier for personnel to install and replace the first grounding wire. Especially when the grounding wire needs to be regularly maintained and replaced, the operator can complete the task more efficiently, reducing time and labor intensity. This solves the problem in the prior art where the two ends of the grounding wire are fixed between the mounting part and the grounding rod by welding, and the process becomes quite cumbersome and time-consuming when the grounding wire is damaged or aged and needs to be replaced.
[0022] 2. In use, this utility model forms a double grounding protection through the arrangement of the first grounding rod and the second grounding rod. When current flows through the first grounding rod, the second grounding rod will also participate in the grounding work, which can achieve a stronger grounding capability and ensure that even if there are some problems with the first grounding rod, the second grounding rod can effectively conduct current and improve the safety of the system. Attached Figure Description
[0023] Figure 1 A rear-view three-dimensional structural schematic diagram of a high-voltage grounding device for electric loads in mining, provided for this utility model;
[0024] Figure 2 A partial three-dimensional structural diagram of a high-voltage grounding device for electric loads in mining, provided by this utility model. Figure 1 ;
[0025] Figure 3 A cross-sectional perspective view of the three-dimensional structure of the connector of a high-voltage grounding device for electric loads in mining, provided by this utility model. Figure 1 ;
[0026] Figure 4 An enlarged three-dimensional structural schematic diagram of point A in Figure 1 for a mining electric load grounding high-voltage device provided by this utility model;
[0027] Figure 5 A cross-sectional perspective view of the three-dimensional structure of the connector of a high-voltage grounding device for electric loads in mining, provided by this utility model. Figure 2 ;
[0028] Figure 6 A cross-sectional perspective view of the three-dimensional structure of the connector of a high-voltage grounding device for electric loads in mining, provided by this utility model. Figure 3 .
[0029] Legend:
[0030] 1. First grounding wire; 101. Connector; 102. First bolt; 103. First clamping plate; 104. Positioning post; 105. Pin post; 106. Return spring; 107. Second clamping plate; 108. Connecting post; 109. Pin hole; 2. Mounting component; 201. First grounding rod; 202. Sleeve; 203. First support post; 204. Second support post; 205. Second bolt; 206. Second grounding rod; 207. Second grounding wire. Detailed Implementation
[0031] 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.
[0032] Example 1, please refer to Figures 1 to 4 This utility model provides a technical solution: a high-voltage grounding device for a mining electric load, including a first grounding wire 1. Connectors 101 are provided on both outer surfaces of the two first grounding wires 1. Fixing components are provided inside the two connectors 101. An mounting component 2 is provided on the left side of one connector 101, and a first grounding rod 201 is provided on the right side of the other connector 101. A sleeve 202 is provided on the outer surface of the first grounding rod 201. Multiple first support columns 203 are fixedly installed on the outer surface of the sleeve 202. Second support columns 204 are slidably connected inside the multiple first support columns 203. A first grounding rod 204 is provided at the other end of each of the multiple second support columns 204. Two grounding rods 206, and multiple first support columns 203 are all threaded with second bolts 205. Each of the multiple second grounding rods 206 has a second grounding wire 207 on its left side. The other end of each of the multiple second grounding wires 207 is located on the outer surface of the first grounding rod 201. The fixing assembly includes a first bolt 102, which is threaded into the inside of the connector 101. The front side of the first bolt 102 is movably connected to a first clamping plate 103, which is movably embedded in the inside of the connector 101. Two positioning columns 104 are fixedly installed on the rear side of the first clamping plate 103, and the outer surfaces of the two positioning columns 104 are slidably connected to the inside of the connector 101.
[0033] In this embodiment, the operator can first insert both ends of the first grounding wire 1 into the connector 101. Then, by rotating the first bolt 102, the operator can push the first clamping plate 103 forward and simultaneously pull the positioning post 104 forward within the connector 101. This allows the first clamping plate 103 to fit against the outer surface of the first grounding wire 1, thus fixing the first grounding wire 1 in the connector 101. Simultaneously, the operator can reverse the second bolt 205, disengaging one end from the second support post 204, and then pull the second grounding rod 206 outwards, causing the second support post 204 to move against the first support post 203 on the sleeve 202. The second grounding rod 206 is expanded outward by sliding from the inside to the outside. After the second grounding rod 206 is adjusted to the appropriate position, the first grounding rod 201 and the second grounding rod 206 can be buried in the ground. The mounting part 2 is then fixed to the mining electrical equipment (such as a high-voltage cabinet). When the electrical equipment fails, the current will be transmitted to the first grounding wire 1 through the mounting part 2 and the connector 101. Then, the current will be transmitted from the first grounding wire 1 to the first grounding rod 201 through the connector 101 at the other end. When the first grounding rod 201 receives the current, it will be transmitted to the second grounding rod 206 through the second grounding wire 207 to conduct the current into the ground.
[0034] Example 2, as Figures 5 to 6 As shown, the fixing assembly also includes two pins 105 and a second clamping plate 107. The two pins 105 are movably embedded inside the connector 101. A return spring 106 is provided on the outer side of each of the two pins 105. The other end of each of the two return springs 106 is fixedly installed on the outer surface of the connector 101. The second clamping plate 107 is movably embedded inside the connector 101. Two connecting posts 108 are fixedly installed on the rear side of the second clamping plate 107. The two connecting posts 108 are movably embedded inside the connector 101. A pin hole 109 is opened inside each of the two connecting posts 108. The two pins 105 are matched with the pin holes 109.
[0035] In this embodiment, the operator can first insert both ends of the first grounding wire 1 into the connector 101, and pull the pin 105 so that it can slide inside the connector 101. At the same time, the operator can pull the return spring 106 to extend. Then, the operator can pick up the second clamp 107, embed it into the inside of the connector 101, and fit it against the outer surface of the first grounding wire 1. At the same time, the connecting pin 108 can be placed into the positioning groove inside the connector 101. Then, the operator can release the pin 105 so that the return spring 106 can be reset. While the return spring 106 is resetting, the operator can pull the pin 105 to reset synchronously, so that the pin 105 can be embedded into the pin hole 109 to fix the first grounding wire 1 to the connector 101.
[0036] Working principle: When in use, the operator can first insert both ends of the first grounding wire 1 into the connector 101, and then rotate the first bolt 102 so that when it rotates, it can push the first clamping plate 103 forward and at the same time pull the positioning post 104 to slide forward inside the connector 101, so that the first clamping plate 103 can fit against the outer surface of the first grounding wire 1 to fix the first grounding wire 1 in the connector 101. Personnel can first insert both ends of the first grounding wire 1 into the connector 101, and pull the pin 105 to allow it to slide inside the connector 101. Simultaneously, the return spring 106 is extended. Then, the personnel can pick up the second clamp 107, embed it into the connector 101, and fit it against the outer surface of the first grounding wire 1. Simultaneously, the connecting pin 108 is positioned in the internal positioning groove of the connector 101. Then, the personnel can release the pin 105, causing the return spring 106 to reset. Simultaneously, the pin 105 is pulled to reset, allowing it to embed into the pin hole 109, thus fixing the first grounding wire 1 to the connector 101. The design of the first bolt 102 and the pin 105 structure makes installing and replacing the first grounding wire 1 easier, especially when regular maintenance and replacement are required. Operators can complete the task more efficiently, reducing time and labor intensity. In use, personnel can simultaneously reverse the second bolt 205, disengaging one end from the second support column 204, and pull the second grounding rod 206 outwards. This causes the second support column 204 to slide outwards from inside the first support column 203 on the sleeve 202, expanding the second grounding rod 206 outwards. Once the second grounding rod 206 is in the appropriate position, personnel can bury the first grounding rod 201 and the second grounding rod 206 into the ground and fix the mounting piece 2 to the mining electrical equipment (such as a high-voltage switchgear). When the electrical equipment malfunctions, the current will be transmitted to the first grounding wire through the mounting piece 2 and the connector 101. 1. The current is then transmitted from the first grounding wire 1 to the first grounding rod 201 through the connector 101 at the other end. When the first grounding rod 201 receives current, it is transmitted to the second grounding rod 206 through the second grounding wire 207 to conduct the current to the ground. The structure of the first grounding rod 201 and the second grounding rod 206 forms a double grounding protection. When the current flows through the first grounding rod 201, the second grounding rod 206 will also participate in the grounding work. This can achieve a stronger grounding capability and ensure that even if there are some problems with the first grounding rod 201, the second grounding rod 206 can effectively conduct the current, thereby improving the safety of the system.
[0037] 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 high-voltage grounding device for electric loads in mines, comprising a first grounding wire (1), characterized in that: Both outer surfaces of the two first grounding wires (1) are provided with connectors (101), and both connectors (101) are provided with fixing components inside. One connector (101) is provided with an mounting component (2) on its left side, and the other connector (101) is provided with a first grounding rod (201) on its right side. The outer surface of the first grounding rod (201) is provided with a sleeve (202), and multiple first support columns (203) are fixedly installed on the outer surface of the sleeve (202). The interior of the multiple first support columns (203) is slidably connected with a second support column (204). The other end of the multiple second support columns (204) is provided with a second grounding rod (206). The interior of the multiple first support columns (203) is threadedly connected with a second bolt (205). The left side of the multiple second grounding rods (206) is provided with a second grounding wire (207), and the other end of the multiple second grounding wires (207) is provided on the outer surface of the first grounding rod (201).
2. The high-voltage grounding device for electric loads in mining according to claim 1, characterized in that: The fixing component includes a first bolt (102) which is threaded into the interior of the connector (101).
3. A high-voltage grounding device for electric loads in mining, as described in claim 2, characterized in that: The front side of the first bolt (102) is movably connected to the first clamping plate (103), and the first clamping plate (103) is movably embedded inside the connector (101).
4. A high-voltage grounding device for electric loads in mining, as described in claim 3, characterized in that: Two positioning posts (104) are fixedly installed on the rear side of the first clamping plate (103), and the outer surfaces of the two positioning posts (104) are slidably connected to the inside of the connector (101).
5. A high-voltage grounding device for electric loads in mining, as described in claim 1, characterized in that: The fixing assembly also includes two pins (105) and a second clamping plate (107). The two pins (105) are movably embedded inside the connector (101), and a return spring (106) is provided on the outer side of each of the two pins (105).
6. A high-voltage grounding device for electric loads in mining, as described in claim 5, characterized in that: The other ends of the two return springs (106) are fixedly installed on the outer surface of the connector (101), and the second clamp (107) is movably embedded inside the connector (101).
7. A high-voltage grounding device for electric loads in mining according to claim 6, characterized in that: Two connecting posts (108) are fixedly installed on the rear side of the second clamping plate (107), and the two connecting posts (108) are movably embedded inside the connector (101).
8. A high-voltage grounding device for electric loads in mining, as described in claim 7, characterized in that: Both of the connecting posts (108) have pin holes (109) inside, and both of the pin posts (105) are matched with the pin holes (109).