Lead sealing hole structure of opening and closing mutual inductor

Abstract

The utility model discloses a lead sealing hole structure of an opening and closing mutual inductor, which relates to the technical field of opening and closing mutual inductors and is applied to a mutual inductor body, the mutual inductor body comprises a lower half ring and an upper half ring, and the side surfaces of one ends of the lower half ring and the upper half ring are fixedly connected with a first protection plate and a second protection plate respectively. The inner side of the first protection plate and the inner side of the second protection plate are each provided with a sliding block capable of doing reciprocating motion along a straight line, springs are arranged on the inner sides of the sliding blocks, threaded holes are further formed in the inner sides of the sliding blocks, second bolts are movably arranged in the threaded holes, and a first threading hole and a second threading hole are formed in the two sliding blocks respectively. Lead seals are detachably mounted in the first threading hole and the second threading hole; the lead seal is stored and hidden, so that the protection performance is improved, and meanwhile, the protection performance is further improved through tedious step operation.

Description

Technical Field

[0001] The utility model relates to the technical field of open-close mutual inductors, in particular to a lead sealing hole structure of an open-close mutual inductor. Background Art

[0002] Instrument transformers, also known as instrument transformers, are a general term for current transformers and voltage transformers. They can convert high voltage into low voltage and high current into low current, and are used for measuring or protecting systems. When used in power grids, the current passing through the transformer is measured.

[0003] The existing opening and closing transformers still have the problem that after installation, the background terminal cannot detect the current signal due to manual opening of the transformer, resulting in inaccurate measurement.

[0004] In view of the above problems, the utility model provides a lead sealing hole structure for opening and closing a mutual inductor. Utility Model Content

[0005] The utility model aims to provide a lead seal hole structure for opening and closing a mutual inductor, which can hide the lead seal and improve the protection performance. Meanwhile, the complicated operation steps can further improve the protection performance, thereby solving the problems in the background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a lead seal hole structure for opening and closing a transformer, which is applied to a transformer body, wherein the transformer body comprises a lower half ring and an upper half ring, and a first protective plate and a second protective plate are fixedly connected to the side surfaces of one end of the lower half ring and the upper half ring, respectively, and sliders which can reciprocate along a straight line are arranged on the inner sides of the first protective plate and the second protective plate, and a spring is arranged on the inner side of the slider, and a threaded hole is also arranged on the inner side of the slider, and a second bolt is movably arranged in the threaded hole, and a first threading hole and a second threading hole are respectively opened on the two sliders, and lead seals are detachably installed in the first threading hole and the second threading hole.

[0007] Furthermore, the inner walls of the first protective plate and the second protective plate are fixedly connected with a connecting rod, the inner side of the slider is slidably connected to the outer side of the connecting rod, the slider is slidably connected to the lower half ring and one end of the upper half ring, the spring is wrapped around the outside of the connecting rod, one end of the spring is fixedly connected to the side of the slider, and the other end is fixedly connected to the inner walls of the first protective plate and the second protective plate.

[0008] Furthermore, a threaded hole is provided on the side of the slider, and circular holes are provided on the outer side walls of the first protective plate and the second protective plate. The inner diameter of the circular hole is larger than the inner diameter of the threaded hole, and the second bolt is threadedly connected to the inner side of the threaded hole.

[0009] Furthermore, the first protective plate and the second protective plate are symmetrical to each other, and when the lower half ring and the upper half ring are combined, the first protective plate and the second protective plate are in contact with each other.

[0010] Furthermore, one end of the upper half ring is threadedly connected to a first bolt, and one end of the lower half ring is threadedly connected to the first bolt.

[0011] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0012] The utility model provides a lead seal hole structure for opening and closing a mutual inductor. The lower half ring and the upper half ring on the mutual inductor body are combined and fastened and installed. Then the rope on the lead seal is passed through the first threading hole and the second threading hole and fixed. Then the two sliders are pushed to the inside of the first protective plate and the second protective plate and the spring is squeezed by using a tool. Then the two second bolts are passed through the first protective plate and the second protective plate from the outside and connected with the threaded holes on the sliders to fix the position of the sliders. At this time, the mutual inductor body is effectively protected. If disassembly is required, the second bolts are removed. Under the push of the spring, the slider moves outward, the lead seal is cut off by a tool, and then the lower half ring and the upper half ring are separated. The purpose of this design is to hide the lead seal to improve the protection performance. At the same time, the cumbersome step operation also further improves the protection performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0014] Figure 2 This is a schematic diagram of the structure of the first protective plate and the second protective plate in the utility model;

[0015] Figure 3 This is a schematic diagram of the internal structure of the first protective plate and the second protective plate in the utility model;

[0016] Figure 4 This is a structural schematic diagram of the slider in the utility model.

[0017] In the figure: 1. Transformer body; 2. Lower half ring; 3. Upper half ring; 4. First bolt; 5. First protective plate; 6. Second protective plate; 7. Connecting rod; 8. Slider; 9. Spring; 10. Threaded hole; 11. Round hole; 12. Second bolt; 13. First threading hole; 14. Second threading hole; 15. Lead seal. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] In order to solve the problem of how to effectively protect technology, such as Figure 1-4 As shown, the following preferred technical solutions are provided:

[0020] A lead seal hole structure for opening and closing a transformer is applied to a transformer body 1. The transformer body 1 includes a lower half ring 2 and an upper half ring 3. The side surfaces of one end of the lower half ring 2 and the upper half ring 3 are respectively fixedly connected with a first protective plate 5 and a second protective plate 6. The inner sides of the first protective plate 5 and the second protective plate 6 are both provided with sliders 8 that can reciprocate along a straight line. A spring 9 is provided on the inner side of the slider 8. A threaded hole 10 is also provided on the inner side of the slider 8. A second bolt 12 is movably provided in the threaded hole 10. A first threading hole 13 and a second threading hole 14 are respectively provided on the two sliders 8. Lead seals 15 are detachably installed in the first threading hole 13 and the second threading hole 14.

[0021] Specifically, the lower half ring 2 and the upper half ring 3 on the transformer body 1 are combined and fastened, and then the rope on the lead seal 15 is passed through the first threading hole 13 and the second threading hole 14 and fixed, and then the two sliders 8 are pushed to the inside of the first protective plate 5 and the second protective plate 6 and the spring 9 is squeezed, and then the two second bolts 12 are passed through the first protective plate 5 and the second protective plate 6 from the outside and connected with the threaded holes 10 on the slider 8 to fix the position of the slider 8. At this time, the transformer body 1 is effectively protected. If disassembly is required, the second bolts 12 are removed, and the slider 8 is moved outward under the push of the spring 9, and the lead seal 15 is cut off by the tool, and then the lower half ring 2 and the upper half ring 3 are separated. The purpose of this design is to store and hide the lead seal 15 to improve the protection performance, and the cumbersome step operation also further improves the protection performance.

[0022] Further, such as Figure 1-4 As shown, the following preferred technical solutions are provided:

[0023] The inner walls of the first protective plate 5 and the second protective plate 6 are fixedly connected with a connecting rod 7, the inner side of the slider 8 is slidably connected to the outer side of the connecting rod 7, the slider 8 is slidably connected to the lower half ring 2 and one end of the upper half ring 3, the spring 9 is covered on the outer side of the connecting rod 7, one end of the spring 9 is fixedly connected to the side of the slider 8, and the other end is fixedly connected to the inner wall of the first protective plate 5 and the second protective plate 6. The purpose of this design is to ensure that the slider 8 can reciprocate in a straight line and can move outward under the push of the spring 9.

[0024] Further, such as Figure 3 and Figure 4 As shown, the following preferred technical solutions are provided:

[0025] A threaded hole 10 is provided on the side of the slider 8, and a circular hole 11 is provided on the outer walls of the first protective plate 5 and the second protective plate 6. The inner diameter of the circular hole 11 is larger than the inner diameter of the threaded hole 10, and the second bolt 12 is threadedly connected to the inner side of the threaded hole 10. The purpose of this design is that the second bolt 12 passes through the circular hole 11 and cooperates with the threaded hole 10 to fix the position of the slider 8.

[0026] Further, such as Figure 1 and Figure 2 As shown, the following preferred technical solutions are provided:

[0027] The first protective plate 5 and the second protective plate 6 are symmetrical to each other. When the lower half ring 2 and the upper half ring 3 are combined, the first protective plate 5 and the second protective plate 6 are in contact with each other. The purpose of such design is to ensure the rationality of the structure.

[0028] Further, such as Figure 1 As shown, the following preferred technical solutions are provided:

[0029] One end of the upper half ring 3 is threadedly connected to the first bolt 4, and one end of the lower half ring 2 is threadedly connected to the first bolt 4. The purpose of this design is that when the lower half ring 2 and the upper half ring 3 are combined, the lower half ring 2 and the upper half ring 3 are fastened together by the first bolt 4 to improve the protection performance.

[0030] In summary: the lower half ring 2 and the upper half ring 3 on the transformer body 1 are combined and fastened, and then the rope on the lead seal 15 is passed through the first threading hole 13 and the second threading hole 14 and fixed, and then the two sliders 8 are pushed to the inside of the first protective plate 5 and the second protective plate 6 and the spring 9 is squeezed, and then the two second bolts 12 are passed through the first protective plate 5 and the second protective plate 6 from the outside and connected with the threaded holes 10 on the slider 8 to fix the position of the slider 8. At this time, the transformer body 1 is effectively protected. If disassembly is required, the second bolts 12 are removed, and the slider 8 is moved outward under the push of the spring 9, and the lead seal 15 is cut off by the tool, and then the lower half ring 2 and the upper half ring 3 are separated. The purpose of this design is to store and hide the lead seal 15 to improve the protection performance, and at the same time, the cumbersome step operation also further improves the protection performance.

[0031] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0032] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A lead sealing hole structure for an open and close mutual inductor, applied to a mutual inductor body (1), the mutual inductor body (1) comprising a lower half ring (2) and an upper half ring (3), characterized in that: The lower half ring (2) and the upper half ring (3) are respectively fixedly connected to the side surfaces of one end with a first protective plate (5) and a second protective plate (6); a slider (8) capable of linear reciprocating motion is arranged inside the first protective plate (5) and the second protective plate (6); a spring (9) is arranged inside the slider (8); a threaded hole (10) is also arranged inside the slider (8); a second bolt (12) is movably arranged in the threaded hole (10); a first threading hole (13) and a second threading hole (14) are respectively opened on the two sliders (8); a lead seal (15) is detachably installed in the first threading hole (13) and the second threading hole (14).

2. A lead sealing hole structure for an opening and closing mutual inductor according to claim 1, characterized in that: The inner walls of the first protective plate (5) and the second protective plate (6) are fixedly connected to a connecting rod (7); the inner side of the slider (8) is slidably connected to the outer side of the connecting rod (7); the slider (8) is slidably connected to the lower half ring (2) and one end of the upper half ring (3); a spring (9) is wrapped around the outer side of the connecting rod (7); one end of the spring (9) is fixedly connected to the side of the slider (8), and the other end is fixedly connected to the inner walls of the first protective plate (5) and the second protective plate (6).

3. The lead sealing hole structure of the opening and closing mutual inductor according to claim 1, characterized in that: The side of the slider (8) is provided with a threaded hole (10), and the outer walls of the first protective plate (5) and the second protective plate (6) are both provided with a circular hole (11), the inner diameter of the circular hole (11) is larger than the inner diameter of the threaded hole (10), and the second bolt (12) is threadedly connected to the inner side of the threaded hole (10).

4. The lead sealing hole structure of the opening and closing mutual inductor according to claim 1, characterized in that: The first protective plate (5) and the second protective plate (6) are symmetrical to each other, and when the lower half ring (2) and the upper half ring (3) are combined, the first protective plate (5) and the second protective plate (6) are in contact with each other.

5. The lead sealing hole structure of the opening and closing mutual inductor according to claim 1, characterized in that: One end of the upper half ring (3) is threadedly connected to a first bolt (4), and one end of the lower half ring (2) is threadedly connected to the first bolt (4).

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