Insulator for gas insulated switchgear

Abstract

The utility model discloses an insulator used for a gas insulated switchgear, comprising a mounting beam, an insulator body and a bus, the side wall of the mounting beam is provided with a chute along the length direction, the chute is internally provided with a slide block, a positioning assembly is arranged between the top of the slide block and the mounting beam, the side wall of the slide block is provided with a first stud, and the first stud is provided with a second stud. A first stud is arranged on the insulator body, a first screw hole matched with the first stud is formed in one end of the insulator body, a mounting cavity is formed in the other end of the insulator body, an insert is arranged in the mounting cavity, and the bus is fixed with the insulator body through a bolt. The insulator body can flexibly move on the mounting beam in the length direction, and the position of the sliding block in the sliding groove can be adjusted by unscrewing and screwing the locking nut, so that the accurate adjustment of the position of the insulator body is realized, the requirements of different mounting scenes are met, and the mounting convenience and adaptability are improved.

Description

Technical Field

[0001] This utility model relates to the field of insulator technology, specifically to an insulator used in gas-insulated switchgear. Background Technology

[0002] In gas-insulated switchgear, insulators play a crucial supporting and insulating role. However, traditional insulators present several problems during installation and use. Firstly, their installation methods are inflexible, making it difficult to adjust their positions according to actual needs, thus failing to accommodate busbars with different spacings. This can lead to inconvenience or inaccurate fit during equipment assembly. Secondly, existing insulator inserts are mostly fixed structures; when internal threads are damaged, the entire insulator needs to be replaced, resulting in high costs. As gas-insulated switchgear develops towards higher voltage levels and more compact structures, developing an insulator with superior performance and more reliable installation and connection is of great significance. Utility Model Content

[0003] To address the shortcomings of existing technologies, this utility model provides an insulator for gas-insulated switchgear, which solves the problem of poor installation adjustability of existing insulators.

[0004] To achieve the above objectives, this utility model provides the following technical solution: an insulator for gas-insulated switchgear, comprising a mounting beam, an insulator body, and a busbar. The mounting beam has a groove along its length on its side wall, a slider is provided in the groove, a positioning component is provided between the top of the slider and the mounting beam, a first stud is provided on the side wall of the slider, a first screw hole matching the first stud is provided at one end of the insulator body, and a mounting cavity is provided at the other end. An insert is provided in the mounting cavity, and a second screw hole is provided in the insert. The busbar is fixed to the insulator body by bolts, one end of which is screwed into the second screw hole. A fixing component for fixing the insert is provided on the insulator body.

[0005] Preferably, the fixing component includes through holes on the upper and lower sides of the insulator body, an enlarged hole coaxially provided above the through holes, a locking rod movably inserted into the through holes, the upper end of the locking rod extending to the outside of the insulator body and fixedly installed with a locking plate, a tension spring installed between the locking plate and the bottom of the enlarged hole, and a locking hole for the locking rod to be inserted into the outer wall of the insert.

[0006] Preferably, the positioning component includes a second stud fixedly disposed on the upper wall of the slider, the upper wall of the mounting beam is provided with a strip hole communicating with the slide groove along the length direction, and the upper end of the second stud passes through the strip hole and is screwed with a locking nut.

[0007] Preferably, the lower wall of the slider is fixedly provided with a dovetail block, and the lower wall of the slide groove is provided with a dovetail groove that matches the dovetail block.

[0008] Preferably, a washer is provided below the locking nut.

[0009] Preferably, the outer wall of the insulator body is provided with a skirt.

[0010] Beneficial effects

[0011] This utility model provides an insulator for gas-insulated switchgear, which has the following advantages:

[0012] The sliding groove and slider structure on the mounting beam, together with the positioning components, allows the insulator body to move flexibly along the length of the mounting beam. By loosening and tightening the locking nut, the position of the slider in the sliding groove can be adjusted, thereby achieving precise adjustment of the position of the insulator body, meeting the needs of different installation scenarios, and improving the convenience and adaptability of installation.

[0013] The insulator body and the slider are connected by the first stud and the first screw hole, which ensures a stable connection between the insulator body and the mounting beam. The busbar is fixed to the second screw hole of the insert in the insulator body by bolts, which ensures a reliable connection between the busbar and the insulator.

[0014] The fixing assembly securely fixes the insert into the mounting cavity of the insulator body through structures such as locking rods and tension springs, which facilitates the inspection and replacement of the insert. The sheds set on the outer wall of the insulator body increase the creepage distance of the insulator, improve its insulation performance, effectively prevent surface discharge in high voltage environments, and enhance the working reliability of the insulator in complex environments. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model.

[0016] Figure 2 This is a partially enlarged structural schematic diagram of the present invention.

[0017] In the diagram: 1. Mounting beam; 2. Insulator body; 3. Busbar; 4. Slide groove; 5. Sliding block; 6. First stud; 7. Insert; 8. Bolt; 9. Through hole; 10. Locking rod; 11. Locking plate; 12. Tension spring; 13. Locking hole; 14. Second stud; 15. Strip hole; 16. Locking nut; 17. Dovetail block; 18. Dovetail groove; 19. Washer; 20. Umbrella skirt. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] Please see Figure 1-2 This utility model provides a technical solution: an insulator for gas-insulated switchgear, comprising a mounting beam 1, an insulator body 2, and a busbar 3. The mounting beam 1 has a groove 4 along its length on its side wall, a slider 5 is provided in the groove 4, a positioning component is provided between the top of the slider 5 and the mounting beam 1, a first stud 6 is provided on the side wall of the slider 5, one end of the insulator body 2 has a first screw hole matching the first stud 6, and the other end has a mounting cavity, an insert 7 is provided in the mounting cavity, and a second screw hole is provided in the insert 7. The busbar 3 is fixed to the insulator body 2 by a bolt 8, one end of the bolt 8 being screwed into the second screw hole, and a fixing component for fixing the insert 7 is provided on the insulator body 2.

[0020] By adopting the above technical solution, when installing the insulator of the gas-insulated switchgear, the insulator body 2 is connected to the slider 5, and then the slider 5 is slid in the groove 4 of the mounting beam 1 to adjust the position. After the position is adjusted, it is fixed. Then, the busbar 3 is connected to the insert 7 in the insulator body 2 by bolts 8, thus realizing the installation of the insulator and the connection with the busbar 3, providing basic support for the normal operation of the gas-insulated switchgear.

[0021] In this embodiment, the fixing component includes through holes 9 on the upper and lower sides of the insulator body 2, an enlarged hole coaxially provided above the through holes 9, a locking rod 10 movably inserted into the through holes 9, the upper end of the locking rod 10 extending to the outside of the insulator body 2 and fixedly installed with a locking plate 11, a tension spring 12 installed between the locking plate 11 and the bottom of the enlarged hole, and a locking hole 13 for the locking rod 10 to be inserted into the outer wall of the insert 7.

[0022] By adopting the above technical solution, when installing the insert 7, pulling the locking plate 11 causes the locking rod 10 to disengage. After inserting the insert 7, the locking plate 11 is released, and the locking rod 10 is inserted into the locking hole 13 of the insert 7 under the action of the tension spring 12, thus realizing the quick installation and removal function of the insert 7, which facilitates subsequent maintenance and replacement.

[0023] In this embodiment, the positioning component includes a second stud 14 fixedly disposed on the upper wall of the slider 5, and the upper wall of the mounting beam 1 is provided with a strip hole 15 communicating with the slide groove 4 along the length direction. The upper end of the second stud 14 passes through the strip hole 15 and is screwed with a locking nut 16.

[0024] By adopting the above technical solution, when adjusting the position of the insulator body 2, the locking nut 16 is loosened, the slider 5 is moved, and the locking nut 16 is tightened after the adjustment is completed. The adjustment component realizes the flexible adjustment of the position of the insulator body 2 on the mounting beam 1, meets different installation requirements, and improves the convenience and adaptability of installation.

[0025] In this embodiment, the lower wall of the slider 5 is fixedly provided with a dovetail block 17, and the lower wall of the slide groove 4 is provided with a dovetail groove 18 that matches the dovetail block 17.

[0026] By adopting the above technical solution, the cooperation between the dovetail block 17 and the dovetail groove 18 makes the slider 5 slide smoothly, preventing shaking and displacement, and ensuring the accuracy and stability of the position adjustment of the insulator body 2.

[0027] In this embodiment, a washer is provided below the locking nut 16.

[0028] By adopting the above technical solution, when tightening the locking nut 16, the washer is located below the locking nut 16, which increases the contact area between the nut and the mounting beam 1, protects the surface of the mounting beam 1, and improves the tightening effect of the nut.

[0029] In this embodiment, the outer wall of the insulator body 2 is provided with a skirt 20.

[0030] By adopting the above technical solution, the shed 20 increases the creepage distance of the insulator, improves the insulation performance, effectively prevents surface discharge, and enhances the reliability of the insulator in complex environments.

[0031] Those skilled in the art can connect the components in this case sequentially. The specific connection and operation sequence should refer to the working principle described below. The detailed connection methods are well-known technologies in the field. The working principle and process are mainly described below.

[0032] Example: During installation, align the first screw hole at one end of the insulator body 2 with the first stud 6 on the side wall of the slider 5, and tighten it to connect and fix the insulator body 2 and the slider 5. Loosen the locking nut 16 in the adjustment assembly to allow the second stud 14 to move freely in the slot 15, thereby driving the slider 5 to slide in the groove 4 to precisely adjust the position of the insulator body 2. After adjustment, tighten the locking nut 16 to fix the slider 5 on the mounting beam 1. Place the busbar 3 in the mounting cavity of the insulator body 2, align the bolt 8 with the second screw hole of the insert 7, and tighten the bolt 8 to fix the busbar 3 to the insulator body 2.

[0033] When it is necessary to disassemble and replace the insert 7, pull the locking plate 11 outward to disengage the locking rod 10 from the locking hole 13 of the insert 7. At this time, the insert 7 can be removed from the mounting cavity. When it is necessary to install the insert 7, pull the locking plate 11 outward to disengage the locking rod 10 from the locking hole 13 of the insert 7. After placing the insert 7 in the appropriate position in the mounting cavity, release the locking plate 11. The tension spring 12 will restore its elastic deformation, causing the locking rod 10 to move inward and insert into the locking hole 13 of the insert 7, thus fixing the insert 7 in the mounting cavity of the insulator body 2. This is convenient to use.

[0034] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, the phrase "comprising an element defined as..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0035] 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. An insulator for gas-insulated switchgear, comprising a mounting beam (1), an insulator body (2), and a busbar (3), characterized in that, The mounting beam (1) has a groove (4) along its length on its side wall. A slider (5) is provided in the groove (4). A positioning component is provided between the top of the slider (5) and the mounting beam (1). A first stud (6) is provided on the side wall of the slider (5). One end of the insulator body (2) is provided with a first screw hole that matches the first stud (6). The other end is provided with a mounting cavity. An insert (7) is provided in the mounting cavity. A second screw hole is provided in the insert (7). The busbar (3) is fixed to the insulator body (2) by a bolt (8). One end of the bolt (8) is screwed into the second screw hole. A fixing component for fixing the insert (7) is provided on the insulator body (2).

2. An insulator for gas-insulated switchgear according to claim 1, characterized in that, The fixing component includes through holes (9) on the upper and lower sides of the insulator body (2), an enlarged hole coaxially provided above the through holes (9), a locking rod (10) is movably inserted into the through holes (9), the upper end of the locking rod (10) extends to the outside of the insulator body (2) and is fixedly installed with a locking plate (11), a tension spring (12) is installed between the locking plate (11) and the bottom of the enlarged hole, and the outer wall of the insert (7) is provided with a locking hole (13) for the locking rod (10) to be inserted.

3. An insulator for gas-insulated switchgear according to claim 2, characterized in that, The positioning component includes a second stud (14) fixedly disposed on the upper wall of the slider (5), and the upper wall of the mounting beam (1) is provided with a strip hole (15) communicating with the slide groove (4) along the length direction. The upper end of the second stud (14) passes through the strip hole (15) and is screwed with a locking nut (16).

4. An insulator for gas-insulated switchgear according to claim 3, characterized in that, The lower wall of the slider (5) is fixedly provided with a dovetail block (17), and the lower wall of the slide groove (4) is provided with a dovetail groove (18) that matches the dovetail block (17).

5. An insulator for gas-insulated switchgear according to claim 3, characterized in that, A washer (19) is provided below the locking nut (16).

6. An insulator for gas-insulated switchgear according to claim 1, characterized in that, The outer wall of the insulator body (2) is provided with a skirt (20).

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