A device for testing the air breakdown of an insulator

Abstract

The utility model relates to insulator technical field, and disclose a kind of insulator air breakdown test device, comprising: mobile base;Support frame, the support frame fixed mounting in the both sides of mobile base top;Lifting structure, the lifting structure fixed mounting in the outside of support frame;Rotary structure, the rotary structure is set in the both sides of mobile base bottom;Locking structure, the locking structure fixed mounting in the both sides of mobile base;Protective cover structure, the protective cover structure fixed mounting in the inside of support frame;Support column, the support column fixed mounting in the left side of mobile base top, the top of support column is fixedly installed with cross bar.The utility model passes through lifting structure and rotary structure and protective cover structure thus make the broken material be fixed cover and move cover block, avoid splashing to outside, only need to clean up the debris inside protective cover after test, reduce cleaning difficulty, improve test efficiency.

Description

Technical Field

[0001] This utility model relates to the field of insulator technology, specifically an insulator air breakdown test device. Background Technology

[0002] An insulator is a device installed between conductors at different potentials or between a conductor and a grounding component, capable of withstanding voltage and mechanical stress. There are many types of insulators with different shapes. Although different types of insulators have significant differences in structure and appearance, they are all composed of two main parts: insulating components and connecting hardware.

[0003] For example, the patent application with patent number CN215375655U in the prior art has a mounting part that makes the disc suspension insulator connection firm, improves the suspension stability, and is height adjustable. It can adapt to disc suspension insulators of different sizes, thus improving the adaptability of the device. Universal wheels are installed at the bottom of the mounting platform to make the whole device easy to move, ensure the safe distance between multiple devices, and effectively utilize the space of the high voltage test chamber.

[0004] However, it does not provide protection during the test. Therefore, if the insulator is not up to standard during the breakdown test, it will break apart and scatter, which will make it inconvenient for subsequent work and may even cause injury to the staff if they are too far away. Utility Model Content

[0005] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the present invention.

[0006] Given that the existing technology has the problem that the insulator may break apart during the breakdown test if it is not up to standard, resulting in fragments that are inconvenient for subsequent work and may even cause injury to workers who are at a distance.

[0007] To achieve the above objectives, this utility model provides the following technical solution: an insulator air breakdown test device, comprising: a movable base;

[0008] A support frame, which is fixedly installed on both sides of the top of the movable base;

[0009] A lifting structure is fixedly installed on the outside of the support frame;

[0010] A rotating structure is provided on both sides of the bottom of the movable base;

[0011] A locking structure is fixedly installed on both sides of the movable base;

[0012] A protective cover structure is fixedly installed on the inner side of the support frame;

[0013] A support column is fixedly installed on the left side of the top of the movable base, and a crossbar is fixedly installed on the top of the support column.

[0014] As a further embodiment of this utility model: the lifting structure includes a connecting groove and a pulley, a slider is slidably connected inside the connecting groove, and a connecting rope is fixedly connected to the top of the slider.

[0015] As a further embodiment of this utility model: the rotating structure includes a rotating shaft, with winding wheels fixedly installed at both ends of the rotating shaft, and a rotating wheel fixedly installed on the outer side of the winding wheel.

[0016] As a further improvement of this utility model: the locking structure includes a fixing ring, the inside of which is provided with a pin, and the surface of the rotating shaft is provided with a limiting hole.

[0017] As a further embodiment of this utility model: the protective cover structure includes a movable cover, the top of which has a storage cavity, and a fixed cover is provided inside the storage cavity. The top of the fixed cover is fixedly connected to the inner side of the top of the support frame.

[0018] As a further embodiment of this utility model: the other end of the connecting rope is fixedly connected to the surface of the winding wheel via the pulley, and the inner side of the pulley is fixedly connected to the top of the outer side of the support frame.

[0019] As a further improvement of this utility model: a stud is fixedly installed at the top of the crossbar, a conductive wire is fixedly connected to the bottom of the stud, and the bottom of the conductive wire is fixedly installed by a telescopic component.

[0020] It has an installation part, and an insulator is fixedly installed at the bottom of the installation part.

[0021] Compared with the prior art, the beneficial effects of this utility model are: 1. This utility model, through the lifting structure, rotating structure and protective cover structure, causes the fragments to be blocked by the fixed cover and the moving cover, preventing them from splashing to the outside. After the test, only the debris inside the protective cover needs to be cleaned, reducing the cleaning difficulty and improving the test efficiency.

[0022] 2. This utility model uses a lifting structure, a rotating structure, and a protective cover structure to make the overall structure mechanical, which facilitates later maintenance, thereby reducing maintenance costs and avoiding the short service life of electronic equipment. Attached Figure Description

[0023] Figure 1 A schematic diagram of a preferred embodiment of an air breakdown test apparatus for insulators;

[0024] Figure 2 is a schematic diagram of the overall bottom structure shown in Figure 1;

[0025] Figure 3 is a schematic diagram of the overall top structure shown in Figure 1;

[0026] Figure 4 shows the structural schematic of the overall cross-section shown in Figure 1;

[0027] Figure 5 is a schematic diagram of the locking structure shown in Figure 1.

[0028] In the diagram: 1. Movable base; 2. Support frame; 3. Lifting structure; 31. Connecting groove; 32. Slider; 33. Pulley; 34. Connecting rope; 5. Rotating structure; 51. Rotating shaft; 52. Winding wheel; 53. Rotating wheel; 7. Protective cover structure; 71. Movable cover; 72. Storage cavity; 73. Fixed cover; 8. Support column; 9. Crossbar; 10. Stud; 11. Conducting wire; 12. Mounting part; 13. Insulator; 14. Locking structure; 141. Limiting hole; 142. Fixing ring; 143. Pin. Detailed Implementation

[0029] To make the above-mentioned objectives, features and advantages of this utility model more readily understood, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0030] Many specific details are set forth in the following description 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, as understood by those skilled in the art.

[0031] Those who wish to extend this invention may do so in a similar manner without departing from the spirit of this invention; therefore, this invention is not limited to the specific embodiments disclosed below.

[0032] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single embodiment or an embodiment selectively excluded from other embodiments.

[0033] Please refer to Figures 1-4, which show the first embodiment of this utility model. This embodiment provides an insulator air breakdown test device, including: a movable base 1;

[0034] Support frame 2 is fixedly installed on both sides of the top of the movable base 1;

[0035] Lifting structure 3 is fixedly installed on the outside of support frame 2;

[0036] Rotating structure 5 is located on both sides of the bottom of the movable base 1;

[0037] Locking structure 14 is fixedly installed on both sides of the movable base 1;

[0038] The protective cover structure 7 is fixedly installed on the inner side of the support frame 2;

[0039] Support column 8 is fixedly installed on the top left side of the movable base 1, and a crossbar 9 is fixedly installed on the top of support column 8.

[0040] For example, the lifting structure 3 includes a connecting groove 31 and a pulley 33. A slider 32 is slidably connected inside the connecting groove 3, and a connecting rope 34 is fixedly connected to the top of the slider 32.

[0041] Furthermore, pulley 33 is made of nylon and is fixed to the bracket on the top of the outer side of the support frame 2 by a metal shaft. Its axis is parallel to the axis of the winding wheel 52, ensuring that the connecting rope 34 can be driven in a straight line and avoiding rope deviation and wear.

[0042] For example, the rotating structure 5 includes a rotating shaft 51, with a winding wheel 52 fixedly installed at both ends of the rotating shaft 51, and a rotating wheel 53 fixedly installed on the outer side of the winding wheel 52.

[0043] Furthermore, there are two take-up reels 52, which are welded to both ends of the rotating shaft 51 and are circular.

[0044] The wheel has a rope groove on its rim to hold the connecting rope 34, ensuring that the rope does not slip when winding.

[0045] Rotating wheel 53: This is a rubber-coated metal wheel that is fixed to the outside of the take-up wheel 52 by a key connection. The surface is treated with anti-slip texture to facilitate manual rotation by the operator to drive the take-up wheel.

[0046] For example, the locking structure 14 includes a retaining ring 142, the inside of which is provided with a pin 143, and a limiting hole 141 is formed on the surface of the rotating shaft 51.

[0047] Furthermore, the pin 143 has a round handle welded to the top and a chamfered bottom. It can slide along the inner hole of the fixing ring 142. After being inserted, it passes through the fixing ring and extends into the limiting hole 141 of the rotating shaft 51 to lock the rotating shaft and prevent the moving cover 71 from rising or falling unexpectedly during the test.

[0048] Limiting holes 141: evenly distributed on the surface of the rotating shaft 51, cooperate with the pin 143 to achieve graded locking, and the fixed position of the moving cover can be adjusted according to the height of the insulator.

[0049] For example, the protective cover structure 7 includes a movable cover 71, the top of which has a storage cavity 72, and a fixed cover 73 is disposed inside the storage cavity 72. The top of the fixed cover 73 is fixedly connected to the inner side of the top of the support frame 2.

[0050] Furthermore, the storage cavity 72 is a hollow structure at the top of the movable cover 71. The cavity wall is covered with a silicone sealing strip to reduce friction noise when the movable cover is raised and lowered, while also enhancing the sealing performance after closing to prevent small fragments from splashing out from the gaps.

[0051] In use, after positioning the device and pre-opening the protective cover, push the movable base 1 to move the device to the designated test area of ​​the high-voltage test chamber. The operator manually pulls out the pin 143 of the locking structure 14 to release the lock on the rotating shaft 51. Rotating the rotating wheel 53 clockwise causes the rotating shaft 51 and the winding wheel 52 to rotate synchronously. The winding wheel winds the connecting rope 34 upwards. The connecting rope 34 is driven along the pulley 33, pulling the slider 32 of the lifting structure 3 to slide upwards in the connecting groove 31. The slider drives the movable cover 71 to rise synchronously. As the movable cover 71 rises, its top receiving cavity 72 gradually fits the fixed cover 73 until the movable cover rises to its highest stroke. At this time, the insulator installation area is fully exposed. Insert the pin 143 so that it passes through the fixed ring 142 and extends into the limiting hole 141 of the rotating shaft 51.

[0052] Lock the rotating shaft to ensure that the movable cover 71 remains open.

[0053] Operators evacuate to a safe distance and prepare to start the penetration test: Protective cover closure and penetration test: remotely or by an assistant, pull out the pin 143 of the locking structure 14, slowly rotate the rotating wheel 53 counterclockwise, the winding wheel 52 rotates in the opposite direction, and the connecting rope 34 is gradually released.

[0054] Under the action of gravity, the slider 32 slides downward along the connecting groove 31, causing the movable cover 71 to descend synchronously, and the fixed cover 73 gradually extends out from the storage cavity 72.

[0055] Until the bottom of the movable cover 71 touches the top of the movable base 1 or is adjusted to a suitable position according to the height of the insulator, ensuring that the insulator is completely covered by the protective cover, insert the pin 143 to lock the rotating shaft 51, complete the closure of the protective cover, start the high voltage power supply, and conduct the current through the stud 10 and the conductor 11 to the insulator 13, simulating the breakdown environment in the air; if the insulator is defective and breaks apart, the fixed cover 73 of the protective cover structure 7 plus the movable cover 71 can block the debris from splashing and avoid injury to personnel or pollution to the environment.

[0056] Post-test handling: Turn off the high-voltage power supply. After the device is completely de-energized, the operator approaches the device, pulls out the pin 143, rotates the rotating wheel 53 to raise the moving cover 71, exposing the insulator area, loosens the wing bolts of the mounting part 12, removes the insulator fragments, and completes one test. Repeat the above steps to conduct the breakdown test of the next insulator.

[0057] In summary, by using the lifting structure 3, the rotating structure 5, and the protective cover structure 7, the debris is blocked by the fixed cover 73 and the moving cover 71, preventing it from splashing to the outside. After the test, only the debris inside the protective cover needs to be cleaned, reducing the cleaning difficulty and improving the test efficiency.

[0058] Please refer to Figure 5, which shows the second embodiment of this utility model.

[0059] For example, the other end of the connecting rope 34 is fixedly connected to the surface of the winding wheel 52 via a pulley 33, and the inner side of the pulley 33 is fixedly connected to the top of the outer side of the support frame 2.

[0060] Furthermore, the telescopic assembly and mounting part 12: The telescopic assembly is a stainless steel telescopic rod, fixed at the top to the conductor line 11, and connected to the mounting part 12 at the bottom by bolts. Locking bolts are provided on the side of the rod, allowing adjustment of the telescopic rod length to accommodate insulators of different heights. The mounting part 12 has a double-clamp structure, with the inner side of the clamps...

[0061] Attach rubber pads and adjust the spacing between the clamps using wing bolts.

[0062] For example, a stud 10 is fixedly installed on the top of the crossbar 9, a conductor 11 is fixedly connected to the bottom of the stud 10, a mounting part 12 is fixedly installed on the bottom of the conductor 11 through a telescopic assembly, and an insulator 13 is fixedly installed on the bottom of the mounting part 12.

[0063] Furthermore, the insulator 13 is fixed by the clamp of the mounting part 12, located directly above the center of the movable base 1, and within the coverage area of ​​the protective cover structure 7. During the test, the high voltage current is conducted to the insulator through the conduction line 11 to simulate the breakdown scenario in the air.

[0064] When using insulators, the following steps are required for installation and testing: Adjust the mounting part 12 according to the model of insulator 13: Loosen the locking bolts of the telescopic assembly, stretch or shorten the length of the telescopic rod, and make the height of the mounting part 12 match the insulator.

[0065] Loosen the wing bolts of mounting part 12, place the insulator between the double clamps, adjust the position and tighten the wing bolts, and clamp the insulator with rubber pads to ensure that it is firmly fixed and does not damage the surface.

[0066] Connect the terminals of the high-voltage power line to the studs 10 at the top of the crossbar 9, and check the connection status of the conductor 11 to ensure that it is undamaged and not loose, thus ensuring that the power supply path is normal.

[0067] In summary, by using the lifting structure 3, the rotating structure 5, and the protective cover structure 7, the overall structure becomes mechanical, which facilitates later maintenance, thereby reducing maintenance costs and avoiding the short service life of electronic equipment.

[0068] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. An insulator air breakdown test apparatus, characterized in that: include: Mobile base (1); Support frame (2), the support frame (2) is fixedly installed on both sides of the top of the movable base (1); A lifting structure (3) is fixedly installed on the outside of the support frame (2); Rotating structure (5), the rotating structure (5) is disposed on both sides of the bottom of the movable base (1); Locking structure (14), the locking structure (14) is fixedly installed on both sides of the movable base (1); The protective cover structure (7) is fixedly installed on the inner side of the support frame (2); Support column (8) is fixedly installed on the left side of the top of the movable base (1), and a crossbar (9) is fixedly installed on the top of the support column (8).

2. The insulator air breakdown test apparatus according to claim 1, characterized in that: The lifting structure (3) includes a connecting groove (31) and a pulley (33). A slider (32) is slidably connected inside the connecting groove (31), and a connecting rope (34) is fixedly connected to the top of the slider (32).

3. The insulator air breakdown test apparatus according to claim 2, characterized in that: The rotating structure (5) includes a rotating shaft (51), with winding wheels (52) fixedly installed at both ends of the rotating shaft (51), and a rotating wheel (53) fixedly installed on the outer side of the winding wheel (52).

4. The insulator air breakdown test apparatus according to claim 3, characterized in that: The locking structure (14) includes a retaining ring (142), and a pin (143) is provided inside the retaining ring (142). A limit hole (141) is provided on the surface of the rotating shaft (51).

5. The insulator air breakdown test apparatus according to claim 1, characterized in that: The protective cover structure (7) includes a movable cover (71), and a storage cavity (72) is provided at the top inside the movable cover (71). A fixed cover (73) is provided inside the storage cavity (72), and the top of the fixed cover (73) is fixedly connected to the inner side of the top of the support frame (2).

6. The insulator air breakdown test apparatus according to claim 3, characterized in that: The other end of the connecting rope (34) is fixedly connected to the surface of the winding wheel (52) via the pulley (33), and the inner side of the pulley (33) is fixedly connected to the top of the outer side of the support frame (2).

7. The insulator air breakdown test apparatus according to claim 1, characterized in that: A stud (10) is fixedly installed on the top of the crossbar (9), and a conductor (11) is fixedly connected to the bottom of the stud (10).

8. The insulator air breakdown test apparatus according to claim 7, characterized in that: The bottom of the conductor (11) is fixedly installed with a mounting part (12) via a telescopic assembly, and an insulator (13) is fixedly installed at the bottom of the mounting part (12).

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