A split type equalizing ring matched with a lightning arrester

Abstract

The utility model provides a kind of voltage-sharing ring matched with split lightning arrester, including connecting structure, it includes rotating shaft, the rotating shaft is rotatably connected in the inside of mounting groove, the both sides of the rotating shaft are provided with plane spiral spring, one end of the plane spiral spring is connected with the outer wall of mounting shaft, the rotating shaft outer wall is provided with the ring of lamination, the ring of lamination both ends are provided with fixed hole, the ring of lamination is set to circular arc, the number of the ring of lamination is set to two, two the ring of lamination is connected by fixed hole and bolt.Joint structure can be connected between voltage-sharing ring and lightning arrester in advance by being set, plane spiral spring drives rotating shaft to rotate, rotating shaft drives the ring of lamination and lightning arrester between connection to pre-fix voltage-sharing ring, then bolt is inserted into the inside of positioning hole, and voltage-sharing ring can be installed to the outer wall of lightning arrester quickly.

Description

Technical Field

[0001] This utility model belongs to the field of surge arrester technology, specifically relating to an equalizing ring for a split-type surge arrester. Background Technology

[0002] Surge arresters effectively protect electrical equipment. They activate when abnormal voltage occurs, providing protection. When the protected equipment is operating under normal voltage, the surge arrester does not activate and is considered an open circuit from the ground. However, if a high voltage occurs that threatens the insulation of the protected equipment, the surge arrester immediately trips, diverting the high-voltage surge current to the ground, thus limiting the voltage amplitude and protecting the electrical equipment's insulation. Once the overvoltage dissipates, the surge arrester quickly returns to its original state, allowing the system to supply power normally. The main function of a surge arrester is to reduce the amplitude of inrush current waves through parallel discharge gaps or nonlinear resistors, thereby lowering the overvoltage value experienced by the protected equipment and ultimately protecting it.

[0003] The main function of an equalizing ring is to prevent side-strike lightning. It is suitable for AC voltage and can evenly distribute high voltage around an object, ensuring that there is no potential difference between different parts of the ring, thereby achieving the effect of equalizing voltage. Surge arresters and equalizing rings are used together.

[0004] However, when installing the equipotential ring on the outer wall of the surge arrester, it is necessary to align the equipotential ring with the surge arrester with one hand, and then insert the bolt into the equipotential ring and the surge arrester with the other hand for installation, which makes the operation of installing the equipotential ring quite cumbersome. Utility Model Content

[0005] Purpose of utility model

[0006] To address the aforementioned technical problems, this utility model provides an equalizing ring for a split-type surge arrester, thereby resolving the technical issues mentioned in the background section.

[0007] Technical solution

[0008] To achieve the above objectives, the present invention provides a voltage equalization ring for a split-type surge arrester, comprising a mounting shaft, a mounting groove at the top of the mounting shaft, a connecting structure rotatably connected to both sides inside the mounting groove, and a slot at the bottom of the mounting shaft.

[0009] The connecting structure includes a rotating shaft rotatably connected to the interior of a mounting groove. Planar spiral springs are provided on both sides of the rotating shaft. One end of each planar spiral spring is connected to the outer wall of the mounting shaft. A fitting ring is provided on the outer wall of the rotating shaft. Fixing holes are provided at both ends of the fitting ring. The fitting ring is arc-shaped. There are two fitting rings, which are connected by fixing holes and bolts.

[0010] Preferably, it further includes a first fixed shaft, the top of which is provided with an insert shaft, the outer wall of which fits against the inner wall of the slot, the insert shaft is connected to the mounting shaft through a pin body, and the bottom of the first fixed shaft is provided with a threaded hole.

[0011] Preferably, the outer wall of the first fixed shaft is provided with a first straight rod, the outer wall of the first straight rod is provided with a first pressure equalizing ring, and the bottom of the first pressure equalizing ring is provided with a limiting shaft.

[0012] Preferably, a second fixed shaft is provided at the bottom of the first fixed shaft, and the second fixed shaft is provided with a threaded rod, which is threadedly connected to a threaded hole.

[0013] Preferably, a second straight rod is provided at the bottom of the second fixed shaft, and a second pressure equalizing ring is provided on the outer wall of the second straight rod, the diameter of the second pressure equalizing ring being smaller than the diameter of the first pressure equalizing ring.

[0014] Preferably, a fixing rod is rotatably connected to the top of the second straight rod, and an auxiliary groove is provided at one end of the fixing rod, which is engaged with the limiting shaft. Beneficial effects

[0015] The technical solution provided by this utility model has the following advantages compared with the prior art:

[0016] This utility model can pre-connect the equalizing ring and the surge arrester through the set connection structure. The planar spiral spring drives the rotating shaft to rotate, and the rotating shaft drives the fitting ring to connect with the surge arrester to pre-fix the equalizing ring. Then, the bolt is inserted into the positioning hole, which can quickly install the equalizing ring onto the outer wall of the surge arrester.

[0017] Depending on the required number of equalizing rings, the second fixing shaft can be inserted into one end of the first fixing shaft, and then the fixing rod can be rotated to make the fixing rod drive the auxiliary groove to engage with the limiting shaft, thereby fixing the first and second equalizing rings. Attached Figure Description

[0018] Figure 1 This is a perspective view of the present utility model;

[0019] Figure 2 This is a perspective view of the present utility model;

[0020] Figure 3 This is a perspective view of the second equalizing ring of this utility model;

[0021] Figure 4 This is a perspective view of the connection structure of this utility model.

[0022] Attached Figure

[0023] 1. Mounting shaft; 2. Mounting groove; 3. Connecting structure; 301. Rotating shaft; 302. Planar spiral spring; 303. Fitting ring; 304. Fixing hole; 4. Slot; 5. First fixing shaft; 6. Insert shaft; 7. Pin body; 8. First straight rod; 9. First equalizing ring; 10. Limiting shaft; 11. Threaded hole; 12. Second fixing shaft; 13. Threaded rod; 14. Second straight rod; 15. Second equalizing ring; 16. Fixing rod; 17. Auxiliary groove. Detailed Implementation

[0024] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "page", "bottom", "inner", "outer", "clockwise", "counterclockwise", "coaxial", "bottom", "one end", "top", "other end", "one side", "front", "both ends", "both sides", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0025] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0026] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," "fixing," and "equipped with" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0027] Referring now to the accompanying drawings, the various figures are intended only to illustrate certain exemplary embodiments and are not intended to limit the scope of the invention. In the various figures, the same reference numerals denote the same or corresponding parts. The dimensions and scales in the various figures are also for illustrative purposes only and should not be construed as limiting the scope of the invention; these dimensions may be enlarged relative to actual products.

[0028] Reference Figures 1-4 The diagram shows an equalizing ring for a split-type surge arrester, which includes a mounting shaft 1, a mounting groove 2 at the top of the mounting shaft 1, a connecting structure 3 rotatably connected to both sides inside the mounting groove 2, and a slot 4 at the bottom of the mounting shaft 1.

[0029] The connecting structure 3 includes a rotating shaft 301, which is rotatably connected to the interior of the mounting groove 2. Planar spiral springs 302 are provided on both sides of the rotating shaft 301. One end of the planar spiral springs 302 is connected to the outer wall of the mounting shaft 1. A fitting ring 303 is provided on the outer wall of the rotating shaft 301. Fixing holes 304 are provided at both ends of the fitting ring 303. The fitting ring 303 is arc-shaped. There are two fitting rings 303. The two fitting rings 303 are connected by fixing holes 304 and bolts.

[0030] Furthermore, the above technical solution also includes a first fixed shaft 5, with a plug shaft 6 at the top of the first fixed shaft 5. The outer wall of the plug shaft 6 fits against the inner wall of the slot 4. The plug shaft 6 is connected to the mounting shaft 1 via a pin body 7. A threaded hole 11 is provided at the bottom of the first fixed shaft 5. A first straight rod 8 is provided on the outer wall of the first fixed shaft 5. A first equalizing ring 9 is provided on the outer wall of the first straight rod 8. A limiting shaft 10 is provided at the bottom of the first equalizing ring 9. The pin body 7 is inserted into the interior of the plug shaft 6 and the slot 4 to fix the first fixed shaft 5. This can reduce the weight of the mounting shaft 1 when it is installed on the outer wall of the surge arrester, allowing the equalizing ring to be quickly assembled on the surface of the surge arrester.

[0031] Furthermore, in the above technical solution, a second fixed shaft 12 is provided at the bottom of the first fixed shaft 5, and a threaded rod 13 is provided on the second fixed shaft 12. The threaded rod 13 is threadedly connected to the threaded hole 11. A second straight rod 14 is provided at the bottom of the second fixed shaft 12, and a second pressure equalizing ring 15 is provided on the outer wall of the second straight rod 14. The diameter of the second pressure equalizing ring 15 is smaller than the diameter of the first pressure equalizing ring 9. A fixed rod 16 is rotatably connected to the top of the second straight rod 14. An auxiliary groove 17 is provided at one end of the fixed rod 16. The auxiliary groove 17 is engaged with the limiting shaft 10. After the second pressure equalizing ring 15 is installed, the fixed rod 16 is rotated, and the fixed rod 16 drives the auxiliary groove 17 to rotate. The auxiliary groove 17 fits against the outer wall of the limiting shaft 10, keeping the second pressure equalizing ring 15 stable.

[0032] The working principle of this practical application is as follows:

[0033] Refer to the instruction manual appendix Figures 1-4First, when it is necessary to install an equalizing ring on the outer wall of the surge arrester, align the mounting shaft 1 with the surge arrester. Then, the planar spiral spring 302 drives the rotating shaft 301 to rotate, and the rotating shaft 301 drives the fitting ring 303 to fit the surge arrester for pre-fixation. After that, insert the bolt between the two fitting rings 303 to stably fix the mounting shaft 1 on the surface of the surge arrester. Then, insert the insertion shaft 6 at one end of the first fixing shaft 5 into the inside of the slot 4, and insert the pin body 7 between the slot 4 and the insertion shaft 6 to fix the first fixing shaft 5. Then, insert the threaded rod 13 at one end of the second fixing shaft 12 into the inside of the threaded hole 11 to fix the second equalizing ring 15. Then, rotate the fixing rod 16, and the fixing rod 16 drives the auxiliary groove 17 to fit against the outer wall of the limiting shaft 10 to fix the second equalizing ring 15.

[0034] The above-described embodiments are merely illustrative of certain implementations of this utility model, and their descriptions are relatively specific and detailed. However, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these modifications and improvements all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. An equipotential bonding ring for a split-type surge arrester, characterized in that, include Mounting shaft (1), the top of the mounting shaft (1) is provided with mounting groove (2), the two sides inside the mounting groove (2) are rotatably connected with connecting structure (3), and the bottom of the mounting shaft (1) is provided with slot (4). The connecting structure (3) includes a rotating shaft (301) which is rotatably connected to the inside of the mounting groove (2). A planar spiral spring (302) is provided on both sides of the rotating shaft (301). One end of the planar spiral spring (302) is connected to the outer wall of the mounting shaft (1). A fitting ring (303) is provided on the outer wall of the rotating shaft (301). Fixing holes (304) are provided at both ends of the fitting ring (303). The fitting ring (303) is arc-shaped. There are two fitting rings (303). The two fitting rings (303) are connected by fixing holes (304) and bolts.

2. The equalizing ring for a split-type surge arrester according to claim 1, characterized in that: It also includes a first fixed shaft (5), the top of which is provided with a plug shaft (6), the outer wall of the plug shaft (6) is in contact with the inner wall of the slot (4), the plug shaft (6) is connected to the mounting shaft (1) through a pin body (7), and a threaded hole (11) is provided at the bottom of the first fixed shaft (5).

3. The equalizing ring for a split-type surge arrester according to claim 2, characterized in that: The first fixed shaft (5) has a first straight rod (8) on its outer wall, and the first straight rod (8) has a first pressure equalizing ring (9) on its outer wall. The first pressure equalizing ring (9) has a limit shaft (10) at its bottom.

4. The equalizing ring for a split-type surge arrester according to claim 2, characterized in that: The bottom of the first fixed shaft (5) is provided with a second fixed shaft (12), and the second fixed shaft (12) is provided with a threaded rod (13), which is threadedly connected to the threaded hole (11).

5. The equalizing ring for a split-type surge arrester according to claim 4, characterized in that: The bottom of the second fixed shaft (12) is provided with a second straight rod (14), and the outer wall of the second straight rod (14) is provided with a second equalizing ring (15). The diameter of the second equalizing ring (15) is smaller than the diameter of the first equalizing ring (9).

6. The equalizing ring for a split-type surge arrester according to claim 5, characterized in that: The top of the second straight rod (14) is rotatably connected to a fixed rod (16), and an auxiliary groove (17) is provided at one end of the fixed rod (16). The auxiliary groove (17) is engaged with the limiting shaft (10).

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