T-head grounding device suitable for all-insulation cabinet

By designing a T-type grounding device suitable for fully insulated cabinets, and utilizing an internally threaded rod, connecting sleeve, and convenient fixing components, the problem of difficult grounding wire fixing in old fully insulated cabinets was solved, achieving reliable grounding wire connection and convenient wrench management, thus improving power supply reliability and safety.

CN224233210UActive Publication Date: 2026-05-12GUANGDONG ZHONGCHENG ELECTRIC POWER CONSTR ENG CO LTD +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
GUANGDONG ZHONGCHENG ELECTRIC POWER CONSTR ENG CO LTD
Filing Date
2025-06-04
Publication Date
2026-05-12

AI Technical Summary

Technical Problem

The incoming line cabinet of the old fully insulated cabinet has no grounding switch, making it difficult to use ordinary grounding wires for grounding. This leads to an expansion of the scope of safety measures and power outages, and the reliability of power supply needs to be improved.

Method used

A T-type grounding device suitable for fully insulated cabinets was designed, including components such as an internal threaded rod, a connecting sleeve, an external threaded rod, a ground wire collar, a nut, and a wrench. Through threaded connection and convenient fixing components, the ground wire is reliably fixed, preventing it from falling off or being lost.

Benefits of technology

It reduces the scope of power outages, improves the reliability of power supply, prevents wrenches from being lost at will, and enhances ease of use and safety.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a T-head grounding device suitable for an all-insulated cabinet, which relates to the technical field of all-insulated cabinets, and comprises an all-insulated cabinet main body, three groups of internal connecting equipment are arranged in the all-insulated cabinet main body, the front surface of the internal connecting equipment is connected with a ground wire connecting assembly, and the ground wire connecting assembly comprises an internal threaded rod. The surface of the internal threaded rod is connected with a connecting sleeve, the front end of the connecting sleeve is fixedly connected with an external threaded rod, the surface of the side, close to the connecting sleeve, of the external threaded rod is connected with a ground wire lantern ring, and one side of the ground wire lantern ring is connected with a nut. According to the utility model, when ground wire connection is carried out on the all-insulation cabinet main body, the connecting sleeve can be installed on the surface of the internal threaded rod, then the ground wire lantern ring is sleeved on the surface of the external threaded rod, and the ground wire lantern ring is fastened and reinforced through the hexagonal block and the sleeve at the two ends of the wrench, so that the power failure range can be reduced, and the operation is convenient. And the reliability during power supply is improved.
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Description

Technical Field

[0001] This utility model relates to the field of fully insulated cabinet technology, and in particular to a T-head grounding device suitable for fully insulated cabinets. Background Technology

[0002] A fully insulated cabinet refers to a cabinet in which all transmission components are covered by insulating materials or solid insulators, achieving a fully enclosed and insulated state.

[0003] As described in announcement number CN209981889U, a fully insulated and fully sealed gas-filled cabinet is characterized by comprising a main structural body, including a cabinet and a controller connected to the cabinet. The cabinet has multiple cavities and doors. Each cavity contains a gas box movably connected to it. A heat dissipation layer is provided between the cavity and the cabinet. The heat dissipation layer contains a heat dissipation device connected to the controller. The controller has a data display screen and a control key area. This fully insulated and fully sealed gas-filled cabinet is suitable for harsh environments, operates stably, has a long service life, and is fully insulated, fully sealed, and has high safety performance.

[0004] This patented system is stable in operation, has a long service life, and is fully insulated and sealed. In contrast, some existing old fully insulated cabinets and some switch cabinets invested by users have incoming line cabinets without grounding switches, making it difficult to use ordinary grounding wires for grounding. As a result, it is necessary to expand the scope of safety measures and the scope of power outages, and the reliability of power supply needs to be improved.

[0005] Therefore, we propose a novel T-type grounding device suitable for fully insulated cabinets. Utility Model Content

[0006] The purpose of this utility model is to solve the problem that some old fully insulated switchgear and some user-invested switchgear have incoming line cabinets without grounding switches, making it difficult to use ordinary grounding wires for grounding, and thus necessitating the expansion of safety measures and power outage areas, and the need to improve power supply reliability.

[0007] To achieve the above objectives, the present invention adopts the following technical solution: a T-type grounding device suitable for a fully insulated cabinet, comprising a fully insulated cabinet body, wherein three sets of internal connecting devices are arranged inside the fully insulated cabinet body, and a grounding connection assembly is connected to the front surface of the internal connecting devices. The grounding connection assembly includes an internal threaded rod, a connecting sleeve is connected to the surface of the internal threaded rod, an external threaded rod is fixedly connected to the front end of the connecting sleeve, a grounding collar is connected to the side surface of the external threaded rod near the connecting sleeve, a nut is connected to one side of the grounding collar, a wrench is provided on the front surface of the external threaded rod, and a hexagonal block and a sleeve are respectively connected to the two ends of the wrench.

[0008] Furthermore, the connecting sleeve has a threaded hole inside that matches the internal threaded rod, and the internal threaded rod forms a threaded connection with the connecting sleeve through the threaded hole.

[0009] Furthermore, the nut and the external threaded rod form a threaded connection, the size of the slot at the front end of the external threaded rod matches the size of the hexagonal block, and the hexagonal block forms an interlocking connection with the external threaded rod through the slot.

[0010] Furthermore, a convenient fixing component is connected to one side of the main body of the fully insulated cabinet. The convenient fixing component includes a fixing block, and a fixing frame is connected to the surface of the main body of the fully insulated cabinet located directly below the fixing block.

[0011] Furthermore, a fixing ring is connected to the top surface of the fixing frame, and a groove is provided at the bottom inner part of the fixing frame. The size of the groove matches the size of the hexagonal block, and the inner wall of the fixing ring fits against the outer surface of the wrench.

[0012] Furthermore, the fixing block has a through hole inside, and two sets of springs are connected inside one side of the fixing block, with insert rods inserted into the interior of each set of springs.

[0013] Furthermore, one end of each of the two sets of insert rods is connected to a push plate, and the other end of each of the two sets of insert rods is connected to a handle.

[0014] Furthermore, the outer surface of the push plate is in contact with the inner wall of the fixing block, and the push plate and the spring form an elastic structure.

[0015] Furthermore, a slot matching the insert is provided on one side surface of the wrench, and a bevel is provided on the surface of the insert.

[0016] Furthermore, the plug and the slot form a mating connection.

[0017] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0018] 1. In this utility model, when grounding the main body of the fully insulated cabinet, the connecting sleeve can be installed on the surface of the internal thread rod, and then the grounding collar can be fitted onto the surface of the external thread rod. The nut can be installed onto the surface of the external thread rod through the sleeve of the wrench, and the grounding collar can be fixed to ensure that the grounding collar will not fall off during use. It can be reinforced and tightened by the hexagonal blocks and sleeves at both ends of the wrench. This can reduce the power outage range and improve the reliability of power supply.

[0019] 2. In this utility model, after the wrench is used, it can be quickly fixed and disassembled by means of a spring, which is very convenient to take out and avoids the problem of the wrench being easily lost when placed at random. Attached Figure Description

[0020] Figure 1 This utility model provides a three-dimensional structural diagram of a T-type grounding device suitable for fully insulated cabinets;

[0021] Figure 2 This utility model presents a three-dimensional structural diagram of a T-type grounding device suitable for fully insulated cabinets from another angle.

[0022] Figure 3 This utility model provides a first partial exploded structural diagram of a T-head grounding device suitable for fully insulated cabinets;

[0023] Figure 4 for Figure 3 Enlarged structural diagram at point A in the middle;

[0024] Figure 5 This utility model provides a second partially exploded structural diagram of a T-type grounding device suitable for fully insulated cabinets;

[0025] Figure 6 This utility model presents a schematic diagram of the cross-sectional structure of a fixing block for a T-head grounding device suitable for fully insulated cabinets.

[0026] Legend: 1. Main body of the fully insulated cabinet; 2. Internal connecting equipment; 3. Grounding connection assembly; 301. Internal threaded rod; 302. Connecting sleeve; 303. Grounding collar; 304. Nut; 305. External threaded rod; 306. Wrench; 307. Hexagonal block; 308. Sleeve; 4. Convenient fixing assembly; 401. Fixing block; 402. Fixing bracket; 403. Fixing ring; 404. Groove; 405. Slot; 406. Spring; 407. Insert rod; 408. Push plate; 409. Insert block; 410. Handle; 411. Hole. Detailed Implementation

[0027] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0028] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0029] Example 1, such as Figure 1 - Figure 4As shown, this utility model provides a T-type grounding device suitable for a fully insulated cabinet, including a fully insulated cabinet body 1. Inside the fully insulated cabinet body 1, three sets of internal connection devices 2 are arranged. A grounding connection assembly 3 is connected to the front surface of each internal connection device 2. The grounding connection assembly 3 includes an internally threaded rod 301, a connecting sleeve 302 connected to the surface of the internally threaded rod 301, and an externally threaded rod 305 fixedly connected to the front end of the connecting sleeve 302. A grounding collar 303 is connected to the side of the externally threaded rod 305 near the connecting sleeve 302. A grounding collar 303 is connected to one side of the grounding collar 303. The device includes a nut 304 and a wrench 306 on the front surface of an externally threaded rod 305. The two ends of the wrench 306 are connected to a hexagonal block 307 and a sleeve 308, respectively. The connecting sleeve 302 has a threaded hole inside that matches the internally threaded rod 301. The internally threaded rod 301 is threadedly connected to the connecting sleeve 302 through the threaded hole. The nut 304 is threadedly connected to the externally threaded rod 305. The size of the slot at the front end of the externally threaded rod 305 matches the size of the hexagonal block 307. The hexagonal block 307 is inserted into the externally threaded rod 305 through the slot.

[0030] The effect achieved by the entire embodiment 1 is as follows: when it is necessary to ground the internal connecting device 2 of the fully insulated cabinet body 1, the sleeve 308 of the wrench 306 can be fitted onto the surface of the nut 304 first. Then, the nut 304 can be removed by rotating the wrench 306 in the reverse direction. Next, the grounding collar 303 is fitted onto the surface of the external thread rod 305. At this time, the nut 304 can be installed onto the surface of the external thread rod 305 through the sleeve 308 of the wrench 306, and the grounding collar 303 is fixed to ensure that the grounding collar 303 will not fall off during use. Then, one end of the hexagonal block 307 of the wrench 306 can be inserted into the groove of the external thread rod 305. Then, the wrench 306 can be rotated in the forward direction. By driving the external thread rod 305 to rotate, the connecting sleeve 302 can be threadedly connected to the internal thread rod 301, thus completing the installation and fixing of the connecting sleeve 302. This can reduce the power outage range and improve the reliability of power supply.

[0031] Example 2, as Figure 5 and Figure 6As shown, a convenient fixing component 4 is connected to one side of the main body 1 of the fully insulated cabinet. The convenient fixing component 4 includes a fixing block 401. A fixing frame 402 is connected to the lower surface of the fixing block 401 on the main body 1 of the fully insulated cabinet. A fixing ring 403 is connected to the top surface of the fixing frame 402. A groove 404 is formed in the inner bottom of the fixing frame 402. The size of the groove 404 matches the size of the hexagonal block 307. The inner wall of the fixing ring 403 fits against the outer surface of the wrench 306. A hole 411 is formed through the interior of the fixing block 401. Two sets of springs 406 are connected inside one side of the wrench 306. Insert rods 407 are inserted into the inside of each set of springs 406. One end of each set of insert rods 407 is connected to a push plate 408, and the other end of each set of insert rods 407 is connected to a handle 410. The outer surface of the push plate 408 is in contact with the inner wall of the fixing block 401. The push plate 408 and the springs 406 form an elastic structure. A slot 405 matching the insert block 409 is opened on one side of the wrench 306. The surface of the insert block 409 is opened with a bevel. The insert block 409 and the slot 405 form an interlocking connection.

[0032] The effect achieved by the entire embodiment 2 is that when the wrench 306 needs to be removed for use, the handle 410 can be pulled outwards, so that the handle 410 can drive the push plate 408 through the insert rod 407 to compress the spring 406, and drive the insert block 409 to be pulled out of the slot 405. Then, the wrench 306 can be pulled upwards, so that the hexagonal block 307 at the bottom of the wrench 306 can be pulled out of the groove 404. Then, continue to pull the wrench 306 upwards, so that the wrench 306 can be completely pulled out of the hole 411, thus completing the disassembly of the wrench 306. After the grounding collar 303 is installed, When wrench 306 needs to be fixed, the slot 405 of wrench 306 can be aligned with the insert 409 and pushed into the hole 411, so that wrench 306 can press the angled position of insert 409. After being pressed, insert 409 will automatically retract and press. When the hexagonal block 307 of wrench 306 is inserted into the groove 404, spring 406 will also push push plate 408 through its own elasticity to drive insert 409 into slot 405 for fixing. This is very inconvenient to use and avoids the problem of wrench 306 being easily lost if placed randomly.

[0033] Working principle: When grounding the main body 1 of the fully insulated cabinet, the connecting sleeve 302 can be installed on the surface of the internal thread rod 301, and then the grounding collar 303 can be fitted onto the surface of the external thread rod 305. The nut 304 is installed onto the surface of the external thread rod 305 through the sleeve 308 of the wrench 306, and the grounding collar 303 is fixed to ensure that the grounding collar 303 will not fall off during use. It can be reinforced and tightened by the hexagonal blocks 307 and the sleeve 308 at both ends of the wrench 306. This can reduce the power outage range and improve the reliability of power supply. After the wrench 306 is used, it can be quickly fixed and disassembled by the setting of the spring 406, which is also very convenient to use and avoids the problem of the wrench 306 being easily lost when placed randomly.

[0034] The above are merely preferred embodiments of this utility model and are not intended to limit the 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 this utility model without departing from the technical solution of this utility model shall still fall within the protection scope of this utility model.

Claims

1. A T-head grounding device suitable for a fully insulated cabinet, comprising a fully insulated cabinet body (1), characterized in that: The inside of the full insulation cabinet body (1) is provided with three groups of internal connection equipment (2), and the front surface of the internal connection equipment (2) is connected with a ground wire connecting assembly (3); The ground wire connecting assembly (3) comprises an internally threaded rod (301), the surface of the internally threaded rod (301) is connected with a connecting sleeve (302), the front end of the connecting sleeve (302) is fixedly connected with an externally threaded rod (305), the side surface of the externally threaded rod (305) close to the connecting sleeve (302) is connected with a ground wire sleeve ring (303), one side of the ground wire sleeve ring (303) is connected with a nut (304), and the front surface of the externally threaded rod (305) is provided with a wrench (306), and the two ends of the wrench (306) are respectively connected with a hexagonal block (307) and a sleeve (308).

2. The T-head grounding device suitable for a totally insulated switchgear according to claim 1, characterized in that: The inside of the connecting sleeve (302) is provided with a threaded hole matched with the internally threaded rod (301), and the internally threaded rod (301) and the connecting sleeve (302) are threadedly connected.

3. The T-head grounding device suitable for a totally insulated switchgear according to claim 2, characterized in that: The nut (304) and the externally threaded rod (305) are threadedly connected, the size of the notch at the front end of the externally threaded rod (305) matches the size of the hexagonal block (307), and the hexagonal block (307) is insertedly connected with the externally threaded rod (305) through the notch.

4. The T-head grounding device suitable for a totally insulated switchgear according to claim 1, characterized in that: One side of the full insulation cabinet body (1) is connected with a convenient fixing assembly (4), the convenient fixing assembly (4) comprises a fixed block (401), and the full insulation cabinet body (1) is located on the front surface of the fixed block (401) and is connected with a fixing frame (402).

5. The T-head grounding device suitable for a totally insulated switchgear according to claim 4, characterized in that: The top surface of the fixing frame (402) is connected with a fixing ring (403), the inner bottom of the fixing frame (402) is provided with a groove (404), the size of the groove (404) matches the size of the hexagonal block (307), and the inner wall of the fixing ring (403) is matched with the outer surface of the wrench (306).

6. The T-head grounding device suitable for a totally insulated switchgear according to claim 5, characterized in that: The inside of the fixed block (401) is provided with a hole (411), and the inside of one side of the fixed block (401) is connected with two groups of springs (406).

7. The T-head grounding device suitable for a totally insulated switchgear according to claim 6, characterized in that: One end of each of the two groups of insertion rods (407) is connected with a push plate (408), and the other end of each of the two groups of insertion rods (407) is connected with a handle (410).

8. The T-head grounding device suitable for a totally insulated switchgear according to claim 7, characterized in that: The outer surface of the push plate (408) is matched with the inner wall of the fixed block (401), and the push plate (408) and the spring (406) form an elastic structure.

9. The T-head grounding device suitable for a totally insulated switchgear according to claim 1, characterized in that: The side surface of the wrench (306) is provided with an insertion groove (405) matched with an insertion block (409), and the surface of the insertion block (409) is provided with an inclined opening.

10. The T-head grounding device suitable for a totally insulated switchgear according to claim 9, characterized in that: The insertion block (409) and the insertion groove (405) are insertedly connected.