Novel plug-in high-voltage power grounding rod

Abstract

The utility model relates to the technical field of grounding rods, in particular to a novel plug-in type high-voltage power grounding rod, which comprises a connecting rod, a mounting head and a fixing frame which are sequentially connected from top to bottom, and is characterized in that one end of the mounting head is screwed and connected with an external thread of the connecting rod through an internal thread of a connecting part; a limiting clamping ring is arranged at the other end of the fixing frame and connected with the fixing frame. The novel plug-in type high-voltage power grounding rod has the beneficial effects that the annular spring is matched with the clamping pieces, so that the working efficiency is effectively improved, and the safety of installation personnel is also greatly improved due to short time; a plurality of groups of clamping pieces are arranged on the fixing frame to increase the contact area with the static contact, so that the current conduction performance of the static contact to the grounding rod is enhanced, the installation stability is also improved, the whole structure of the plug-in grounding rod is simple, the plug-in grounding rod is convenient to disassemble and assemble, when parts are damaged, the plug-in grounding rod is convenient to maintain and replace, and the plug-in grounding rod better meets the market requirements.

Description

Technical Field

[0001] This utility model relates to the field of grounding rod technology, specifically to a novel insertable high-voltage power grounding rod. Background Technology

[0002] In high-voltage power systems, grounding is a crucial safety measure. Grounding rods, also known as grounding electrodes or grounding grids, are key devices that ensure the working area is always protected at ground potential during power outages and maintenance. Their design is based on improving the conductivity of the grounding conductor and reducing the resistivity of the surrounding soil, aiming to protect workers' safety and prevent dangerous voltages and arcs from accidental power surges. With the rapid development of the power industry, the number and complexity of high-voltage power equipment are constantly increasing, placing higher demands on the performance and reliability of grounding rods.

[0003] Existing high-voltage power grounding rod types include: flat-mouth grounding rod, double-tongue grounding rod, monkey-head spiral grounding rod, and claw grounding rod. In practical applications, the static contact position inside the enclosed high-voltage switchgear is relatively deep, making it difficult to adapt and install ordinary grounding rods. Claw grounding rods can be used for grounding static contacts in high-voltage switchgear. However, the opening and closing time of the claw grounding rod is 3-5 minutes, which not only results in low working efficiency but also easily leads to triggering hazards in high-voltage environments. Due to the special structure of the claw, it also has disadvantages such as insecure clamping, poor conductivity stability, and easy damage.

[0004] Therefore, there is an urgent need to design a new type of plug-in high-voltage power grounding rod to overcome the problems of long installation time, small contact area leading to low current conduction performance and stability, and easy structural damage in traditional grounding rods. Utility Model Content

[0005] The purpose of this invention is to provide a novel insertable high-voltage power grounding rod, which uses a ring spring in conjunction with an installation head and clamping plate to solve the problems of excessively long installation time, small contact area leading to low current conduction performance and stability, and easy structural damage in the traditional grounding rod.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A novel insertable high-voltage power grounding rod, comprising a connecting rod, a mounting head, and a fixing frame connected sequentially from top to bottom, wherein one end of the mounting head is screwed to the external thread of the connecting rod via the internal thread of the connecting part, and the other end is provided with a limit ring, which is connected to the fixing frame;

[0008] The fixing frame includes several vertically arranged fixing columns and a disc-shaped frame body arranged symmetrically on the top and bottom. The extension direction of the fixing columns is perpendicular to the plane of the frame body. A circular through hole is opened at the corresponding position of the center of each of the two frame bodies. Several mounting slots are opened on the edge of each frame body. Each mounting slot is engaged with a clamping piece. The number of mounting slots is the same as the number of clamping pieces. The upper end of each clamping piece extends inward to form a protrusion. The protrusion is engaged with the limiting part above the limiting ring, thereby connecting the mounting head and the fixing frame.

[0009] Each of the clamping pieces has at least two sets of limiting grooves A on the outer side corresponding to the protrusion. A ring spring is installed in the limiting groove A. When the ring spring is tightened, each clamping piece is engaged on the frame. The uppermost set of limiting grooves A corresponds to the position of the protrusion. The lowermost set of limiting grooves A has a limiting groove B opened inward at the corresponding position. Each limiting groove B engages with the mounting slot.

[0010] Preferably, the mounting head consists of a connecting part, a mounting head body, a limiting part, and a limiting retaining ring from top to bottom. The inner diameter of the mounting head body gradually decreases near the limiting part. The limiting part is fitted into the frame body through a through hole and connected to the protrusion on the clamping piece.

[0011] Preferably, a limiting block is provided below each of the limiting grooves B, and the connection position between each limiting block and the limiting groove B is an arc transition.

[0012] Preferably, an even number of the clamping pieces are arranged in the mounting slots on the fixing frame in a centrally symmetrical manner, and the limiting block is positioned facing the center of the through hole.

[0013] Preferably, the plurality of annular springs are respectively disposed in the upper and lower limiting grooves A of the clamping plate.

[0014] Preferably, the mounting head body is threadedly connected to the limiting part.

[0015] Preferably, the side wall of the mounting head is provided with a mounting platform, and the mounting platform is provided with a wiring port.

[0016] Preferably, there are two connection ports, and the wires are connected to the connection ports by screwing on bolts.

[0017] Preferably, the number of mounting slots on the edge of the disc-shaped frame is an even number greater than four.

[0018] Compared with the prior art, the beneficial effects of this utility model are:

[0019] 1. This utility model uses a ring spring in conjunction with a clamping plate. When the grounding rod is inserted, the limiting block on the clamping plate cooperates with the ring spring in the limiting groove B, so that the stationary contact can be directly inserted and pulled out and directly engaged with the clamping plate. By shortening the insertion and removal grounding operation time, the danger to installation operators is reduced.

[0020] 2. This utility model uses clips and ring springs to clamp the stationary contact. Several clips are clamped and set on the fixed frame. The number of clips is more than that of traditional grounding rod contact clips, which makes the contact area of ​​the stationary contact larger, thus greatly improving the current conduction performance of the stationary contact to the grounding rod and enhancing the operational stability.

[0021] 3. This utility model adopts a connecting rod, mounting head and fixing frame as the main structure. The overall structure is simple and easy to disassemble and install. The mounting head is provided with two connection ports, which increases the contact area with the grounding wire and makes the connection more stable. It is also convenient to repair and replace when some parts are damaged. Moreover, the clamping piece at the junction of the fixing frame and the stationary contact is provided with a limit block, which makes the connection between the fixing frame and the stationary contact safer and more secure.

[0022] In summary, this utility model is a novel insertable high-voltage power grounding rod. The use of a ring spring in conjunction with clamps not only effectively improves working efficiency but also greatly enhances the safety of installers due to the shorter installation time. The multiple sets of clamps on the fixing frame increase the contact area with the stationary contact, thereby enhancing the current conduction performance of the stationary contact on the grounding rod and improving installation stability. The overall structure of the insertable grounding rod is simple, easy to disassemble and install, and convenient to repair and replace damaged parts, making it more in line with market requirements. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of the insertable high-voltage power grounding rod of this utility model;

[0024] Figure 2 This is a partial structural diagram of the mounting head and fixing frame of this utility model;

[0025] Figure 3 This is a schematic diagram of the structure of the clip of this utility model;

[0026] Figure 4 This is a schematic diagram of the structure of the frame of this utility model;

[0027] Figure 5 This is a schematic diagram of the structure of the mounting head of this utility model;

[0028] Figure 6 This is a partial structural diagram of the limiting part of this utility model;

[0029] 1. Connecting rod; 101. Wiring port; 102. Mounting platform; 2. Mounting head; 201. Connecting part; 202. Mounting head body; 203. Limiting ring; 204. Limiting part; 3. Fixing frame; 301. Frame body; 302. Fixing column; 303. Mounting slot; 304. Through hole; 4. Clamping piece; 401. Limiting slot A; 402. Protrusion; 403. Limiting slot B; 404. Limiting block; 5. Ring spring. Detailed Implementation

[0030] To make the objectives, technical solutions, and advantages of this utility model clear and complete, the embodiments of this utility model will be further described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only some, not all, embodiments of this utility model, and are merely used to explain the embodiments of this utility model. They are not intended to limit the embodiments of this utility model. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0031] For purposes of simplicity and illustration, the principles of the embodiments are described primarily by way of example. In the following description, numerous specific details are set forth to provide a thorough understanding of the embodiments. However, it will be apparent to those skilled in the art that these embodiments may not be limited to these specific details in practice. In some instances, well-known methods and structures have not been described in detail to avoid unnecessarily obscuring these embodiments. Furthermore, all embodiments can be used in combination with each other.

[0032] Please refer to the accompanying drawings. This utility model provides a technical solution:

[0033] A novel insertable high-voltage power grounding rod includes a connecting rod 1, a mounting head 2, and a fixing frame 3 connected sequentially from top to bottom. One end of the mounting head 2 is screwed to the external thread of the connecting rod 1 through the internal thread of the connecting part 201, and the other end is provided with a limiting ring 203. The limiting ring 203 is connected to the fixing frame 3. The overall structure is simple and easy to disassemble and install. It is also convenient to repair and replace when some parts are damaged.

[0034] The fixing frame 3 includes several vertically arranged fixing columns 302 and a disc-shaped frame 301 arranged symmetrically on the top and bottom. The extension direction of the fixing columns 302 is perpendicular to the plane of the frame 301. A circular through hole 304 is opened at the center of each of the two frame 301. Several mounting slots 303 are opened on the edge of each frame 301. Each mounting slot 303 is engaged with a clamp 4. The number of mounting slots 303 is the same as the number of clamps 4. Several clamps are engaged on the fixing frame. The number of clamps is more than that of traditional grounding rod contact clamps, which increases the contact area of ​​the stationary contact. This greatly improves the current conduction performance of the stationary contact to the grounding rod and enhances the operational stability. The upper end of each clamp 4 extends inward to form a protrusion 402. The protrusion 402 is engaged with the limiting part 204 above the limiting ring 203, thereby connecting the mounting head 2 and the fixing frame 3.

[0035] Each clamp 4 has at least two sets of limiting grooves A401 on its outer side corresponding to the protrusion 402. A ring spring 5 is installed in the limiting groove A401. The ring spring 5 tightens to engage each clamp 4 on the frame 301. The uppermost set of limiting grooves A401 corresponds to the position of the protrusion 402. The lowermost set of limiting grooves A401 has a limiting groove B403 at the corresponding position inward. Each limiting groove B403 engages with the mounting slot 303. The ring spring cooperates with the clamp. When the grounding rod is inserted, the limiting block on the clamp cooperates with the ring spring in the limiting groove B, so that the stationary contact can be directly inserted and pulled out and directly engaged with the clamp. By shortening the operation time of insertion and removal grounding, the purpose of reducing the danger to the installation operator is achieved.

[0036] Furthermore, the mounting head 2 consists of a connecting part 201, a mounting head body 202, a limiting part 204, and a limiting retaining ring 203 from top to bottom. The inner diameter of the mounting head body 202 gradually decreases near the limiting part 204. The limiting part 204 is fitted into the frame 301 through a through hole 304 and is connected to the protrusion 402 on the clamping piece 4.

[0037] Furthermore, each of the limiting grooves B403 is provided with a limiting block 404 below it. The connection position between each limiting block 404 and the limiting groove B403 is an arc transition. The limiting block is provided on the clamp at the junction of the fixing frame and the stationary contact, making the connection between the fixing frame and the stationary contact safer and more secure.

[0038] Furthermore, an even number of the clamping pieces 4 are arranged in the mounting slots 303 on the fixing frame 3 in a centrally symmetrical manner, and the limiting block 404 is arranged facing the center of the through hole 304.

[0039] Furthermore, the plurality of annular springs 5 ​​are respectively disposed in the upper and lower limiting grooves A401 of the clamping plate 4.

[0040] Furthermore, the mounting head body 202 is threadedly connected to the limiting part 204, which facilitates the replacement of different models of limiting parts to adapt to different sizes of frames.

[0041] Furthermore, the side wall of the mounting head 2 is provided with a mounting platform 102, and the mounting platform 102 is provided with a wiring port 101.

[0042] Furthermore, there are two connection ports 101. The wires are connected to the connection ports 101 by screwing on bolts. The mounting head has two connection ports, which increases the contact area with the grounding wire and makes the connection more stable.

[0043] Furthermore, the number of mounting slots 303 opened on the edge of the disc-shaped frame 301 is an even number greater than four.

[0044] Working principle:

[0045] When starting the connection work, first determine the model of the stationary contact and the size of the corresponding grounding rod fixing bracket. Connect the grounding wire to the two connection ports on the mounting head with bolts. Then start the grounding wire connection of the stationary contact in the high-voltage box. First, align the through hole in the fixing bracket with the stationary contact. Manually hold the insulated connecting rod and press the fixing bracket with force. After the clamp on the fixing bracket is pressed and contacts the stationary contact, since the inner diameter is slightly smaller than the diameter of the stationary contact, the clamp will be squeezed open, and the stationary contact will be clamped in the inner cavity by the clamp until the limit block is tightly engaged with the stationary contact, and the grounding connection is completed.

[0046] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A novel insertable high-voltage power grounding rod, the grounding rod comprising a connecting rod (1), a mounting head (2), and a fixing frame (3) connected sequentially from top to bottom, characterized in that: One end of the mounting head (2) is screwed to the external thread of the connecting rod (1) through the internal thread of the connecting part (201), and the other end is provided with a limiting ring (203), which is connected to the fixing frame (3); The fixing frame (3) includes several vertically arranged fixing columns (302) and a disc-shaped frame (301) arranged symmetrically on the top and bottom. The extension direction of the fixing columns (302) is perpendicular to the plane of the frame (301). A circular through hole (304) is opened at the corresponding position of the center of each of the two frames (301). Several mounting slots (303) are opened on the edge of each frame (301). Each mounting slot (303) is engaged with a clamp (4). The number of mounting slots (303) is the same as the number of clamps (4). The upper end of each clamp (4) extends inward to form a protrusion (402). The protrusion (402) is engaged with the limiting part (204) above the limiting ring (203), thereby connecting the mounting head (2) and the fixing frame (3). Each of the clamps (4) has at least two sets of limiting grooves A (401) on the outer side corresponding to the protrusion (402). A ring spring (5) is provided in the limiting groove A (401). The ring spring (5) tightens to engage each of the clamps (4) on the frame (301). The uppermost set of limiting grooves A (401) corresponds to the position of the protrusion (402). The lowermost set of limiting grooves A (401) has a limiting groove B (403) opened inward at the corresponding position. Each of the limiting grooves B (403) engages with the mounting slot (303). The mounting head (2) consists of a connecting part (201), a mounting head body (202), a limiting part (204), and a limiting retaining ring (203) from top to bottom. The inner diameter of the mounting head body (202) gradually decreases near the limiting part (204). The limiting part (204) is fitted into the frame body (301) through a through hole (304) and connected to the protrusion (402) on the clamping piece (4).

2. The novel insertable high-voltage power grounding rod as described in claim 1, characterized in that: Each of the limiting grooves B (403) is provided with a limiting block (404) below it, and the connection position between each limiting block (404) and the limiting groove B (403) is an arc transition.

3. A novel insertable high-voltage power grounding rod as described in claim 2, characterized in that: The clamping pieces (4) are arranged in an even number of mounting slots (303) on the fixing frame (3) in a centrally symmetrical manner, and the limiting block (404) is arranged facing the center of the through hole (304).

4. A novel insertable high-voltage power grounding rod as described in claim 1, characterized in that: The plurality of annular springs (5) are respectively disposed in the upper and lower limit grooves A (401) of the clamping plate (4).

5. A novel insertable high-voltage power grounding rod as described in claim 1, characterized in that: The mounting head body (202) is threadedly connected to the limiting part (204).

6. A novel insertable high-voltage power grounding rod as described in claim 1, characterized in that: The mounting head body (202) has a mounting platform (102) on its side wall, and the mounting platform (102) has a wiring port (101).

7. A novel insertable high-voltage power grounding rod as described in claim 6, characterized in that: There are two connection ports (101), and the wires are connected to the connection ports (101) by screwing on bolts.

8. A novel insertable high-voltage power grounding rod as described in claim 1, characterized in that: The number of mounting slots (303) on the edge of the disc-shaped frame (301) is an even number greater than four.

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