Transformer neutral point grounding protection device convenient to install and debug

Abstract

The utility model discloses a transformer neutral point grounding protection device which is convenient to install and debug, and the device comprises an installation frame, the bottom end of the installation frame is symmetrically connected with supporting rods in a clamping manner, and the bottom end of the installation frame is provided with a convenient dismounting mechanism. The convenient dismounting and mounting mechanism comprises a mounting seat, jacks, a fixing ring, a top plate, a tensioning spring, an inserting rod, a mounting seat, a base plate and a lightning arrester, the mounting seat is movably connected to the interior of the mounting frame, and the jacks are formed in the bottom end of the mounting seat at equal intervals. And the mounting seat can slide into the mounting frame conveniently by driving the insertion rod to descend and slide out of the insertion hole, the limiting of the mounting seat is relieved, then the top plate and the insertion rod are pushed to reset through the telescopic characteristic of the tensioning spring, the insertion rod is forced to be embedded into the insertion hole again, and the mounting seat is positioned, so that the mounting convenience is improved; and the lightning arrester can be conveniently mounted through the mounting seat.

Description

Technical Field

[0001] The utility model relates to the technical field of transformers, and particularly relates to a transformer neutral point grounding protection device which is convenient for installation and debugging. Background Technique

[0002] 10kV and 220kV are the main voltage levels of the power supply network. Due to the high voltage, the neutral point generally adopts the direct grounding method. Due to the requirements of relay protection setting configuration and prevention of communication interference, etc., in order to limit the single-phase short-circuit current, some transformers adopt the ungrounded neutral point method;

[0003] However, the traditional neutral point grounding protection device is not convenient for disassembly and installation, which affects the efficiency of replacement and maintenance. At the same time, on uneven ground, it is easy to tilt, which affects the installation stability. Therefore, in order to avoid the above technical problems, it is necessary to provide a transformer neutral point grounding protection device which is convenient for installation and debugging to overcome the defects in the prior art. Content of the Utility Model

[0004] The utility model provides a transformer neutral point grounding protection device which is convenient for installation and debugging, and can effectively solve the problems put forward in the above background technique, that is, it is not convenient for disassembly and installation, which affects the efficiency of replacement and maintenance. At the same time, on uneven ground, it is easy to tilt, which affects the installation stability.

[0005] To achieve the above purpose, the utility model provides the following technical scheme: A transformer neutral point grounding protection device which is convenient for installation and debugging, including an installation frame, symmetrically clamped with support rods at the bottom end of the installation frame, and a convenient disassembly and installation mechanism is arranged at the bottom end of the installation frame. The convenient disassembly and installation mechanism includes an installation seat, insertion holes, fixed rings, top plates, tension springs, insertion rods, fixed seats, cushion plates and lightning arresters;

[0006] The installation seat is movably connected inside the installation frame, and insertion holes are equidistantly opened at the bottom end of the installation seat. Fixed rings are fixedly sleeved at the top positions on the outer sides of the two support rods, and top plates are movably sleeved at the positions on the outer sides of the two support rods corresponding to the top of the fixed rings. Tension springs are clamped at the positions on the outer sides of the support rods corresponding to the top plates and the fixed rings. The insertion rods are clamped at the positions on the top end of the top plates corresponding to the inside of the insertion holes. A fixed seat is connected to one side of the top end of the installation seat by bolts, a cushion plate is connected to one side of the top end of the installation seat corresponding to the fixed seat by bolts, and lightning arresters are connected to the top ends of the cushion plate and the fixed seat by bolts.

[0007] Preferably, adjustment and leveling mechanisms are arranged at the bottom ends of the two support rods. The adjustment and leveling mechanisms include sleeves, bottom plates, convex blocks, positioning pins, chutes, sliders and swivel rings;

[0008] Sleeves are movably sleeved on the outer sides of the bottoms of the two support rods. A bottom plate is clamped at the position corresponding to the bottom of the support rod at the bottom end of the sleeve. The outer side of the bottom plate is equidistantly clamped with convex blocks. A positioning pin is connected to the inside of the convex block through a thread. The outer sides of the two support rods are equidistantly clamped with sliding grooves, and sliding blocks are clamped at the positions corresponding to the inside of the sliding grooves on the inner walls of the sleeves. A rotating ring is rotatably connected to the position corresponding to the outer side of the support rod at the top end of the sleeve.

[0009] Preferably, the top end of the insertion rod penetrates through the top end of the installation frame and is embedded inside the insertion hole. A handle is connected to the bottom end of the top plate through a bolt. An electric column is installed at the top of the lightning arrester on the cushion plate.

[0010] Preferably, the outer side of the sliding block is slidably connected to the inner wall of the sliding groove, and the inner wall of the rotating ring is connected to the outer side of the support rod through a thread.

[0011] Preferably, a bracket is connected to one side position at the top end of the cushion plate through a bolt. An adjusting rod is rotatably connected to the top end of the bracket. An N-shaped plate is rotatably connected to the position corresponding to the top of the bracket at the top end of the adjusting rod. A storage groove is formed at the position corresponding to the outer side of the N-shaped plate at the top end of the bracket. A fixing block is clamped at the top end of the N-shaped plate. A discharge rod is connected to the inside of the fixing block through a thread.

[0012] Preferably, the bottom end of the N-shaped plate is embedded inside the storage groove, and a knob is clamped at the bottom end of the adjusting rod.

[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows: The structure of the present utility model is scientific and reasonable, and it is safe and convenient to use:

[0014] 1. A convenient disassembly and assembly mechanism is provided. By pulling the top plate down with the handle and driving the insertion rod to slide out of the insertion hole, the limit on the mounting seat is released, which is convenient for sliding the mounting seat into the installation frame. Then, due to the telescopic characteristic of the tension spring, the top plate and the insertion rod are pushed to reset, forcing the insertion rod to be re-embedded into the insertion hole to position the mounting seat, improving the installation convenience. Then, the lightning arrester can be conveniently installed through the mounting seat.

[0015] 2. An adjusting and stabilizing mechanism is provided. Through the cooperation of the sliding groove and the sliding block, when the rotating ring is rotated, the sleeve is limited, forcing the sleeve to push the bottom plate to descend along the support rod, adjusting the positions of the bottom plates at the bottom ends of the two support rods as needed, which is convenient for installing the support rod and the installation frame on uneven ground, ensuring the flatness of the installation frame and improving the adaptability. In addition, embedding the positioning pin on the convex block into the ground further improves the stability of the bottom plate and the support rod.

[0016] 3. A bracket, an adjusting rod, an N-shaped plate, a storage groove, a fixing block and a discharge rod are provided. By rotating the adjusting rod, the N-shaped plate is pushed to move up and down along the storage groove, and the discharge rod is moved by the fixing block, so that when replacing lightning arresters of different heights, it is convenient to align the discharge rod with the electric column on the lightning arrester according to the height of the lightning arrester, improving adaptability. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The drawings are used to provide a further understanding of the present invention and form a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation to the present invention.

[0018] In the drawings:

[0019] Figure 1 is a schematic structural diagram of the present invention;

[0020] Figure 2 is a schematic structural diagram of the convenient disassembly and assembly mechanism of the present invention;

[0021] Figure 3 is a schematic structural diagram of the adjustment and stabilization mechanism of the present invention;

[0022] Figure 4 is a schematic installation structure diagram of the N-shaped plate of the present invention;

[0023] Reference numerals in the figures: 1, mounting frame; 2, support rod;

[0024] 3, convenient disassembly and assembly mechanism; 301, mounting seat; 302, jack; 303, fixing ring; 304, top plate; 305, tension spring; 306, insertion rod; 307, fixing seat; 308, backing plate; 309, lightning arrester;

[0025] 4, adjustment and stabilization mechanism; 401, sleeve; 402, bottom plate; 403, convex block; 404, positioning pin; 405, chute; 406, slider; 407, rotating ring;

[0026] 5, bracket; 6, adjusting rod; 7, N-shaped plate; 8, storage groove; 9, fixing block; 10, discharge rod. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0027] The following is a description of the preferred embodiments of the present invention with reference to the drawings. It should be understood that the preferred embodiments described herein are only for the purpose of illustrating and explaining the present invention and are not used to limit the present invention.

[0028] Embodiment: As Figures 1-4As shown in the figure, the utility model provides a technical solution, a transformer neutral point grounding protection device that is convenient for installation and debugging, including an installation frame 1. Symmetrically clamped at the bottom end of the installation frame 1 are support rods 2. A convenient disassembly and assembly mechanism 3 is arranged at the bottom end of the installation frame 1. The convenient disassembly and assembly mechanism 3 includes an installation seat 301, insertion holes 302, fixing rings 303, top plates 304, tension springs 305, insertion rods 306, fixing seats 307, cushion plates 308 and lightning arresters 309;

[0029] The installation seat 301 is movably connected inside the installation frame 1, and insertion holes 302 are equidistantly arranged at the bottom end of the installation seat 301. Fixing rings 303 are fixedly sleeved at the top positions on the outer sides of the two support rods 2. Top plates 304 are movably sleeved at the positions corresponding to the tops of the fixing rings 303 on the outer sides of the two support rods 2. Tension springs 305 are clamped at the positions corresponding to the outer sides of the support rods 2 between the top plates 304 and the fixing rings 303. Insertion rods 306 are clamped at the positions corresponding to the inside of the insertion holes 302 at the top ends of the top plates 304. One side position at the top end of the installation seat 301 is bolted to a fixing seat 307. A cushion plate 308 is bolted at the position corresponding to one side of the fixing seat 307 at the top end of the installation seat 301. Lightning arresters 309 are bolted to the top ends of both the cushion plate 308 and the fixing seat 307. In order to facilitate the positioning of the installation seat 301, the top end of the insertion rod 306 penetrates through the top end of the installation frame 1 and is embedded inside the insertion hole 302. A handle is bolted to the bottom end of the top plate 304. An electric column is installed at the top end of the lightning arrester 309 on the cushion plate 308;

[0030] Adjusting and stabilizing mechanisms 4 are arranged at the bottom ends of the two support rods 2. The adjusting and stabilizing mechanisms 4 include sleeves 401, bottom plates 402, convex blocks 403, positioning pins 404, sliding grooves 405, sliders 406 and rotating rings 407;

[0031] Sleeves 401 are movably sleeved at the bottom positions on the outer sides of the two support rods 2. Bottom plates 402 are clamped at the positions corresponding to the bottoms of the support rods 2 at the bottom ends of the sleeves 401. Convex blocks 403 are equidistantly clamped on the outer sides of the bottom plates 402. Positioning pins 404 are connected to the inside of the convex blocks 403 by threads. Sliding grooves 405 are equidistantly clamped on the outer sides of the two support rods 2. Sliders 406 are clamped at the positions corresponding to the inside of the sliding grooves 405 on the inner walls of the sleeves 401. Rotating rings 407 are rotatably connected to the positions corresponding to the outer sides of the support rods 2 at the top ends of the sleeves 401. In order to facilitate the limitation of the sleeves 401, the outer sides of the sliders 406 are slidably connected to the inner walls of the sliding grooves 405, and the inner walls of the rotating rings 407 are connected to the outer sides of the support rods 2 by threads;

[0032] One side of the top end of the backing plate 308 is connected with a bracket 5 through a bolt. The top end of the bracket 5 is rotatably connected with an adjusting rod 6. The top end of the adjusting rod 6 is rotatably connected with an N-shaped plate 7 corresponding to the top of the bracket 5. A receiving groove 8 is formed in the top of the bracket 5 corresponding to the outer side of the N-shaped plate 7. A fixing block 9 is clamped at the top end of the N-shaped plate 7. A discharge rod 10 is connected to the inside of the fixing block 9 by threads. In order to facilitate the adjustment of the height of the discharge rod 10, the bottom end of the N-shaped plate 7 is embedded in the receiving groove 8, and a knob is clamped at the bottom end of the adjusting rod 6.

[0033] The working principle and usage process of the present utility model are as follows: First, rotate the rotating ring 407, and through the cooperation of the sliding groove 405 and the slider 406, limit the sleeve 401, forcing the sleeve 401 to push the bottom plate 402 along the support rod 2 to descend. Adjust the positions of the bottom plates 402 at the bottom ends of the two support rods 2 as needed, which is convenient for installing the support rods 2 and the installation frame 1 on uneven ground, ensuring the flatness of the installation frame 1 and improving the adaptability. In addition, insert the positioning pin 404 on the convex block 403 into the ground to further improve the stability of the bottom plate 402 and the support rod 2;

[0034] Next, pull the top plate 304 to descend through the handle, and drive the insertion rod 306 to descend and slide out of the insertion hole 302, releasing the limit on the mounting seat 301, which is convenient for sliding the mounting seat 301 into the installation frame 1. Then, through the telescopic characteristic of the tension spring 305, push the top plate 304 and the insertion rod 306 to reset, forcing the insertion rod 306 to re-embed into the insertion hole 302 to position the mounting seat 301, improving the installation convenience. Then, it is convenient to install the lightning arrester 309 through the mounting seat 301;

[0035] Finally, rotate the adjusting rod 6, push the N-shaped plate 7 to rise and fall along the receiving groove 8, and drive the discharge rod 10 to move through the fixing block 9. Thus, when replacing lightning arresters 309 of different heights, it is convenient to align the discharge rod 10 with the electric column on the lightning arrester 309 according to the height of the lightning arrester 309, improving the adaptability.

[0036] Finally, it should be noted that the above are only the preferred examples of the present utility model and are not used to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A transformer neutral point grounding protection device that is convenient for installation and debugging, including an installation frame (1), characterized in that: The bottom end of the installation frame (1) is symmetrically clamped with support rods (2). A convenient disassembly and assembly mechanism (3) is arranged at the bottom end of the installation frame (1). The convenient disassembly and assembly mechanism (3) includes a mounting seat (301), a jack (302), a fixing ring (303), a top plate (304), a tension spring (305), a plug rod (306), a fixing seat (307), a backing plate (308), and a lightning arrester (309). A mounting seat (301) is movably connected inside the installation frame (1), and jacks (302) are equidistantly arranged at the bottom end of the mounting seat (301). Fixing rings (303) are fixedly sleeved at the top positions on the outer sides of the two support rods (2). Top plates (304) are movably sleeved at the positions corresponding to the tops of the fixing rings (303) on the outer sides of the two support rods (2). Tension springs (305) are clamped at the positions corresponding to the outer sides of the support rods (2) between the top plates (304) and the fixing rings (303). Plug rods (306) are clamped at the positions corresponding to the inside of the jacks (302) at the top ends of the top plates (304). A fixing seat (307) is bolted to one side position at the top end of the mounting seat (301). A backing plate (308) is bolted to the position corresponding to one side of the fixing seat (307) at the top end of the mounting seat (301). Lightning arresters (309) are bolted to the top ends of both the backing plate (308) and the fixing seat (307).

2. The neutral point grounding protection device for transformer with convenient installation and debugging according to claim 1, characterized in that: Adjusting and stabilizing mechanisms (4) are arranged at the bottom ends of the two support rods (2). The adjusting and stabilizing mechanisms (4) include sleeves (401), bottom plates (402), convex blocks (403), positioning pins (404), chutes (405), sliders (406), and swivel rings (407). Sleeves (401) are movably sleeved at the bottom positions on the outer sides of the two support rods (2). Bottom plates (402) are clamped at the positions corresponding to the bottoms of the support rods (2) at the bottom ends of the sleeves (401). Convex blocks (403) are equidistantly clamped on the outer sides of the bottom plates (402). Positioning pins (404) are threadedly connected inside the convex blocks (403). Chutes (405) are equidistantly clamped on the outer sides of the two support rods (2). Sliders (406) are clamped at the positions corresponding to the inside of the chutes (405) on the inner walls of the sleeves (401). Swivel rings (407) are rotatably connected to the positions corresponding to the outer sides of the support rods (2) at the top ends of the sleeves (401).

3. The neutral point grounding protection device for transformer with convenient installation and debugging according to claim 1, characterized in that: The top end of the plug rod (306) penetrates through the top end of the installation frame (1) and is embedded inside the jack (302). A handle is bolted to the bottom end of the top plate (304). An electric column is installed at the top end of the lightning arrester (309) on the backing plate (308).

4. The transformer neutral point grounding protection device with convenient installation and debugging according to claim 2, characterized in that: The outer sides of the sliders (406) are slidably connected to the inner walls of the chutes (405). The inner walls of the swivel rings (407) are threadedly connected to the outer sides of the support rods (2).

5. The neutral point grounding protection device for transformer which is convenient for installation and debugging according to claim 1, characterized in that: One side at the top of the backing plate (308) is connected with a bracket (5) by bolts. The top of the bracket (5) is rotatably connected with an adjusting rod (6). The top of the adjusting rod (6) is rotatably connected with an N-shaped plate (7) corresponding to the top of the bracket (5). And a receiving groove (8) is formed at the top of the bracket (5) corresponding to the outer side of the N-shaped plate (7). The top of the N-shaped plate (7) is clamped with a fixing block (9). A discharge rod (10) is connected to the inside of the fixing block (9) by threads.

6. The transformer neutral point grounding protection device with convenient installation and debugging according to claim 5, characterized in that: The bottom end of the N-shaped plate (7) is embedded inside the receiving groove (8), and a knob is clamped at the bottom end of the adjusting rod (6).

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