Power switch cabinet lightning arrester test support

Abstract

The utility model relates to the lightning arrester test technical field, and discloses an electric power switch cabinet lightning arrester test support comprising a support assembly, the support assembly is connected with a fixing assembly, the support assembly comprises a support tube, the outer wall of the support tube is provided with support legs in a surrounding manner, the support tube is internally provided with an adjusting rod in a sliding plugging manner, and the adjusting rod is connected with the fixing assembly. A plurality of fixing grooves are formed in the adjusting rod, a threaded rod is inserted into the supporting pipe in a threaded mode, limiting blocks matched with the fixing grooves are arranged on the threaded rod, the fixing assembly comprises a fixing table fixedly arranged at the top of the adjusting rod, a plurality of first sliding grooves are formed in the upper surface of the fixing table in a surrounding mode, and fixing blocks are arranged in the first sliding grooves in a sliding mode. According to the utility model, the height of the device can be adjusted, so that tests can be carried out at different heights, test data are enriched, test results are improved, meanwhile, test cost is saved, lightning arresters with different sizes can be fixed by the fixed block which can be adjusted in a sliding manner, and the practicability is high.

Description

Technical Field

[0001] The utility model relates to the technical field of lightning arrester tests, in particular to a lightning arrester test bracket for a power switch cabinet. Background Art

[0002] The lightning arrester is connected between the cable and the ground and is usually connected in parallel with the protected equipment. The lightning arrester can effectively protect communication equipment. Once abnormal voltage appears, the lightning arrester will act and play a protective role. The lightning arrester on the switch cabinet can prevent lightning overvoltage and switching overvoltage, protect electrical equipment from the harm of high transient overvoltage, and limit the follow current time and follow current amplitude. [[ID=IO]]

[0003] To ensure the safe use of the lightning arrester, it is usually tested before leaving the factory. During the test, a base will be set at the bottom of the lightning arrester, which is usually fixed by three bolts to connect the lightning arrester to the ground or equipment. The height of its bracket is not adjustable. Therefore, multiple brackets with different heights are required for the test, resulting in an increase in test costs and a waste of time during the replacement process. At the same time, the existing bracket has a fixed size and cannot fix arresters with different base sizes, so its practicability is low. Content of the Utility Model

[0004] (I). Technical Problems to be Solved

[0005] The technical problem to be solved by the utility model is to overcome the defects that the height of the above-mentioned bracket is not adjustable and the size for fixing the lightning arrester is limited, and provide a lightning arrester test bracket for a power switch cabinet.

[0006] (II). Technical Solutions

[0007] To solve the above technical problems, the technical solution provided by the utility model is: a lightning arrester test bracket for a power switch cabinet, including a support assembly, a fixing assembly is connected to the support assembly. The support assembly includes a support tube, support legs are circumferentially arranged on the outer wall of the support tube, an adjusting rod is slidably inserted into the support tube, a plurality of fixing grooves are arranged on the adjusting rod, a screw rod is threadedly inserted into the support tube, and a limiting block adapted to the fixing groove is arranged on the screw rod. The fixing assembly includes a fixing table fixedly arranged at the top of the adjusting rod, a plurality of first chutes are circumferentially arranged on the upper surface of the fixing table, fixing blocks are slidably arranged in the first chutes, and fixing holes are arranged on the fixing blocks.

[0008] As an improvement: a threaded hole is arranged on the support tube, the screw rod is threadedly inserted into the threaded hole, the diameter of the screw rod is smaller than the diameter of the limiting block, and the size of the limiting block is larger than that of the screw rod to prevent the limiting block from detaching from the support tube.

[0009] As an improvement: A limiting plate is provided at the bottom of the adjusting rod. The inner diameter of the support tube is the same as the diameter of the limiting plate, and the diameter of the adjusting rod is the same as the diameter of the top opening of the support tube. The limiting plate restricts the movement range of the adjusting rod, and there is a gap between the adjusting rod and the inner wall of the support tube, facilitating the adjustment and sliding of the adjusting rod.

[0010] As an improvement: The number of the first chutes is three, and the included angle between two of the first chutes is 120°. Second chutes are provided on both sides of the first chute. Protrusions are provided on both sides of the fixing block, and the protrusions slide in the second chutes. The first chutes arranged in a triangular structure ensure the stability of the position of the fixing block after adjustment and prevent position deviation. The cooperation between the protrusions and the second chutes prevents the separation of the fixing block from the fixing table.

[0011] As an improvement: The fixing hole has a threaded structure. An arrester body is installed on the fixing table. The arrester body is connected to the fixing block by bolts passing through the fixing holes. A rubber pad is provided on the upper surface of the fixing block, and the rubber pad can absorb vibrations to ensure the stable connection between the arrester body and the device.

[0012] As an improvement: Mounting holes are provided on the disc of the support leg, and an insulating pad is clamped on the bottom surface of the disc. The mounting holes are used to fixedly install the device on the ground to prevent it from tipping over during the test. The insulating pad effectively isolates the current between the device and the ground, prevents the current from flowing back through the ground, and reduces the risk of electric leakage.

[0013] (III) Beneficial Effects

[0014] The advantages of the present utility model compared with the prior art are as follows:

[0015] 1. By arranging a slidable and adjustable adjusting rod in the support tube, the height of the device can be adjusted. At the same time, by rotating the screw rod to insert the limiting block into the fixing groove at the corresponding position of the adjusting rod, the fixed height after adjustment is achieved, ensuring the stability of use. This design saves the test cost, enriches the experimental data, reduces the time required for replacing the bracket, and improves the test efficiency;

[0016] 2. Multiple slidable and adjustable fixing blocks are provided on the fixing table of the device, which can be adapted to the installation of arresters of different sizes, and at the same time ensure the stability of the position after installation, avoiding the deviation of the position of the arrester during the test. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic structural diagram of a test bracket for a switchgear arrester for electric power of the present utility model.

[0018] Figure 2 is a schematic upward perspective view of a test bracket for a switchgear arrester for electric power of the present utility model.

[0019] Figure 3It is a schematic structural diagram of the adjusting rod of a lightning arrester test bracket for a power switch cabinet of the present utility model.

[0020] Figure 4 Is Figure 3 The enlarged structural diagram of the partial A in

[0021] Figure 5 It is a front view structural diagram of the support assembly of a lightning arrester test bracket for a power switch cabinet of the present utility model.

[0022] Figure 6 Is Figure 5 The sectional structural diagram of A - A in

[0023] As shown in the figure: 1. Support tube; 2. Support leg; 3. Adjusting rod; 4. Fixed groove; 5. Screw; 6. Limit block; 7. Fixed platform; 8. First chute; 9. Fixed block; 10. Fixed hole; 11. Screw hole; 12. Limit plate; 13. Second chute; 14. Convex block; 15. Lightning arrester body; 16. Rubber pad; 17. Mounting hole; 18. Insulating pad. Specific embodiments

[0024] The following further describes the present utility model in detail with reference to the drawings. Among them, the same components are denoted by the same reference numerals.

[0025] It should be noted that the terms "front", "rear", "left", "right", "upper" and "lower" used in the following description refer to the directions in the drawings, and the terms "inner" and "outer" respectively refer to the directions towards or away from the geometric center of a specific component.

[0026] In order to make the content of the present utility model easier to be clearly understood, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the drawings in the embodiments of the present utility model.

[0027] Embodiment 1

[0028] Combined with the attached Figure 1 、 Figure 4 And [[ID=4l]] Figure 6 As shown, a lightning arrester test bracket for a power switch cabinet includes a support assembly, a fixing assembly is connected to the support assembly. The support assembly includes a support tube 1, support legs 2 are circumferentially arranged on the outer wall of the support tube 1, an adjusting rod 3 is slidably inserted into the support tube 1, a plurality of fixed grooves 4 are provided on the adjusting rod 3, a screw 5 is threadedly inserted into the support tube 1, a limit block 6 adapted to the fixed grooves 4 is provided on the screw 5, the fixing assembly includes a fixed platform 7 fixedly arranged at the top of the adjusting rod 3, a plurality of first chutes 8 are circumferentially arranged on the upper surface of the fixed platform 7, fixed blocks 9 are slidably arranged in the first chutes 8, and fixed holes 10 are provided on the fixed blocks 9.

[0029] With the above structure, the adjusting rod 3 can slide within the support tube 1. When adjusted to the appropriate height, the limiting block 6 is inserted into the fixing groove 4 by rotating the screw rod 5, thereby achieving height fixation. The fixing block 9 slides within the first chute 8 to adapt to the position of the connection hole on the arrester body 15.

[0030] Combined with the attached Figure 5 and Figure 6 As shown, a threaded hole 11 is provided on the support tube 1, the screw rod 5 is threadedly inserted into the threaded hole 11. The diameter of the screw rod 5 is smaller than the diameter of the limiting block 6. A limiting plate 12 is provided at the bottom of the adjusting rod 3. The inner diameter of the support tube 1 is the same as the diameter of the limiting plate 12, and the diameter of the adjusting rod 3 is the same as the diameter of the top opening of the support tube 1.

[0031] With the above structure, the size of the limiting block 6 is larger than that of the screw rod 5 to prevent the limiting block 6 from detaching from the support tube 1. The limiting plate 12 restricts the movement range of the adjusting rod 3, and there is a gap between the adjusting rod 3 and the inner wall of the support tube 1, facilitating the adjustment and sliding of the adjusting rod 3.

[0032] [[ID=!4]]Embodiment 2

[0033] Based on Embodiment 1, combined with the attached Figures 1 to 4 As shown, the number of the first chutes 8 is three, and the included angle between two adjacent first chutes!8 is 120°. Second chutes 13 are provided on both sides of the first chute 8. Protrusions 14 are provided on both sides of the fixing block 9, and the protrusions 14 slide within the second chutes 13. The fixing hole 10 has a threaded structure. An arrester body 15 is installed on the fixing platform 7. The arrester body 15 is connected to the fixing block 9 by bolts inserted into the fixing hole 10. A rubber pad 16 is provided on the upper surface of the fixing block 9. Mounting holes 17 are provided on the disc of the support leg 2, and an insulating pad 18 is clamped on the bottom surface of the disc.

[0034] With the above structure, the first chutes 8 arranged in a triangular structure ensure the stability of the position of the fixing block 9 after adjustment and prevent position deviation. The cooperation between the protrusions 14 and the second chutes 13 prevents the fixing block 9 from separating from the fixing platform 7. The rubber pad 16 can absorb vibrations and ensure the stable connection between the arrester body 15 and the device. The mounting holes 17 are used to fixedly install the device on the ground to prevent it from tipping over during the test. The insulating pad 18 effectively isolates the current between the device and the ground, preventing the current from flowing back through the ground and reducing the risk of electric leakage.

[0035] The specific usage method is as follows:

[0036] First, use screws to pass through each mounting hole 17 to fix the device to the ground. Then, horizontally place the arrester body 15 on the fixing table 7. Slide the fixing block 9 so that the fixing hole 10 on the fixing block 9 is coaxial with the connection hole on the bottom surface of the arrester body 15. Insert the bolt into the fixing hole 10 to realize the connection between the arrester body 15 and the fixing table 7. At this time, the test operation can be carried out;

[0037] When it is necessary to adjust the height of the device, hold the adjusting rod 3 with one hand and screw out the screw rod 5 with the other hand so that the limit block 6 extends out of the fixing groove 4. At this time, slide the adjusting rod 3 to the required position, and then re-insert the limit block 6 into the fixing groove 4 at the corresponding position to fix the adjusting rod 3.

[0038] The above describes the present utility model and its implementation manners. Such description is not restrictive. What is shown in the drawings is only one of the implementation manners of the present utility model, and the actual structure is not limited thereto. All in all, if those of ordinary skill in the art are inspired by it and without departing from the gist of the creation of the present utility model, without creative design, structures and embodiments similar to the technical solution are all within the protection scope of the present utility model.

Claims

1. A test support for a lightning arrester of a switchgear for electricity use, comprising a support assembly, and a fixing assembly connected to the support assembly, characterized in that: The support assembly includes a support tube (1), support legs (2) are arranged around the outer wall of the support tube (1), an adjusting rod (3) is slidably inserted into the support tube (1), a plurality of fixing grooves (4) are arranged on the adjusting rod (3), a screw rod (5) is threadedly inserted into the support tube (1), and a limiting block (6) adapted to the fixing grooves (4) is arranged on the screw rod (5); The fixing assembly includes a fixing platform (7) fixedly arranged at the top of the adjusting rod (3), a plurality of first chutes (8) are arranged around the upper surface of the fixing platform (7), fixing blocks (9) are slidably arranged in the first chutes (8), and fixing holes (10) are arranged on the fixing blocks (9).

2. The lightning arrester test bracket for a power switchgear cabinet according to claim 1, characterized in that: A screw hole (11) is arranged on the support tube (1), the screw rod (5) is threadedly inserted into the screw hole (11), and the diameter of the screw rod (5) is smaller than the diameter of the limiting block (6).

3. The lightning arrester test support for the power switchgear according to claim 1, characterized in that: A limiting plate (12) is arranged at the bottom of the adjusting rod (3), the inner diameter of the support tube (1) is the same as the diameter of the limiting plate (12), and the diameter of the adjusting rod (3) is the same as the diameter of the opening at the top of the support tube (1).

4. The lightning arrester test support for the power switch cabinet according to claim 1, characterized in that: The number of the first chutes (8) is three, and the included angle between two first chutes (8) is 120°. Second chutes (13) are arranged on both sides of the first chutes (8), convex blocks (14) are arranged on both sides of the fixing block (9), and the convex blocks (14) are slidably located in the second chutes (13).

5. A lightning arrester test bracket for a power switchgear according to claim 1, characterized in that: The inside of the fixing hole (10) is of a threaded structure, an arrester body (15) is installed on the fixing platform (7), the arrester body (15) is connected to the fixing block (9) by a bolt passing through the fixing hole (10), and a rubber pad (16) is arranged on the upper surface of the fixing block (9).

6. The lightning arrester test support for a power switchgear cabinet according to claim 1, characterized in that: Mounting holes (17) are arranged on the discs of the support legs (2), and insulating pads (18) are clamped on the bottom surfaces of the discs.

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