Porcelain post insulator live detection device

Abstract

The utility model relates to a porcelain post insulator live detection device, comprising a substrate, one end of which is provided with a chute and the lower part of which is provided with a connecting block; the fixed plate is fixedly arranged at the other end of the base plate; the adjusting plate is arranged in the sliding groove in a sliding mode and fixedly arranged at the preset position of the sliding groove through a bolt assembly. The two contact assemblies are arranged on the fixed plate and the adjusting plate respectively, each contact assembly comprises a long-strip-shaped contact, a detector is connected between the two contacts through a wire harness, and the detector is fixedly arranged on one side of the connecting block; and one end of the telescopic rod is in threaded connection with the connecting block. Therefore, the porcelain post insulator live detection device capable of adjusting the distance between the two contacts is provided.

Description

Technical Field

[0001] This utility model relates to the field of electric spark detection technology on the surface of insulators, specifically a live detection device for porcelain post insulators. Background Technology

[0002] As a critical insulating component in power systems, porcelain post insulators are prone to defects such as underfill, porosity, and microcracks due to various factors including manufacturing processes, material stress, and operating environment. The common method for inspecting porcelain post insulators is to use a spark gap tester to inspect each insulator individually during energized operation. When a defect in an insulator's skirt causes leakage, a voltage is generated between the two contacts of the spark gap tester, causing an indicator light to illuminate and indicate the defect. While the spacing between the two contacts of existing spark gap testers corresponds to the common skirt thickness of insulators, the larger spacing makes it difficult to position the two contacts on opposite sides of a single skirt, leading to inconvenience for operators. Utility Model Content

[0003] The technical problem to be solved by this utility model is how to provide a live-line detection device for a porcelain post insulator with adjustable spacing between two contacts.

[0004] To solve the above problems, the technical solution adopted by this utility model is as follows:

[0005] A live-line detection device for post insulators, comprising:

[0006] The substrate has a groove at one end and a connecting block at the bottom.

[0007] A fixed plate is fixedly disposed at the other end of the substrate;

[0008] An adjusting plate is slidably disposed within the slide groove and is fixed at a preset position in the slide groove by a bolt assembly;

[0009] Two sets of contact assemblies are respectively disposed on the fixed plate and the adjusting plate. Each contact assembly includes a strip-shaped contact. A detector is connected between the two contacts by a wire harness. The detector is fixed on one side of the connecting block.

[0010] The telescopic rod has one end threadedly connected to the connecting block.

[0011] As one embodiment of the present invention, at least two rows of fixing hole structures are provided in the groove, the fixing hole structure includes two fixing holes arranged opposite to each other, and the fixing holes penetrate the substrate.

[0012] The adjusting plate has two adjusting plate through holes corresponding to the fixing hole structure, and the adjusting plate through holes correspond to the fixing holes to pass through bolt assemblies.

[0013] In one embodiment of this utility model, the contact assembly further includes a stud, a nut disposed at one end of the stud, and a nut threadedly connected to the stud. A through hole is provided through the stud and the nut, and one end of the contact is bent and fixed in the through hole.

[0014] The fixed plate and the adjusting plate are provided with mounting holes corresponding to the studs. After the studs pass through the mounting holes, the nuts are applied to fix the studs to the fixed plate or the adjusting plate.

[0015] In one embodiment of this utility model, the cross-section of the mounting hole is polygonal, and a polygonal key is provided on the stud corresponding to the mounting hole. The key is disposed in the mounting hole to restrict the rotational movement of the stud.

[0016] In one embodiment of this utility model, two insulating support platforms are provided on the side of the substrate facing away from the slide groove. Resistance wires are fixed on the two support platforms. The studs on the fixed plate are connected to one end of the resistance wires through wires. The other end of the resistance wires is connected to the detector through a wire harness. The studs on the adjusting plate are connected to the detector through a wire harness.

[0017] In one embodiment of this utility model, the substrate, the fixed plate, and the adjusting plate are made of bakelite board or epoxy resin board.

[0018] In one embodiment of this utility model, the lower end of the connecting block is provided with a threaded portion, and a threaded hole is provided on the lower end face of the threaded portion. The threaded portion is threadedly connected to the end of the telescopic rod through the threaded hole.

[0019] The beneficial effects of adopting the above technical solution are as follows:

[0020] Both the fixed plate and the adjusting plate of this application are provided with contacts. The adjusting plate is slidably mounted on the slide groove of the base plate, and the fixed plate is fixed on the base plate. After the adjusting plate is slid to the preset position, it is fixed by bolt assembly. The distance between the two contacts can be adjusted to adapt to insulators with different skirt thicknesses, thereby reducing the difficulty of operation for the operator and increasing the detection efficiency. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of the embodiment.

[0022] Figure 2 This is a front view of the embodiment with the telescopic rod hidden.

[0023] Figure 3 This is a rear view of the embodiment with the telescopic rod hidden.

[0024] Figure 4 and Figure 5 This is a three-dimensional structural diagram of the embodiment after the telescopic rod is hidden.

[0025] Wherein: 100 Telescopic rod; 200 Connecting block; 201 Threaded part;

[0026] 300 Substrate; 301 Slide groove; 302 Fixing hole; 303 Support platform;

[0027] 400 fixed plate;

[0028] 500 Adjusting plate; 501 Adjusting plate through hole;

[0029] 600 Contact assembly; 601 Contact; 602 Nut; 603 Stud; 604 Nut;

[0030] 700 detector; 800 resistance wire; 900 lead wire. Detailed Implementation

[0031] To make the objectives, technical solutions and advantages of this utility model clearer, the utility model will be clearly and completely described below in conjunction with specific embodiments.

[0032] like Figure 1 The porcelain post insulator live detection device shown includes: a long strip-shaped base plate 300, a fixed plate 400 disposed at one end of the base plate 300, an adjusting plate slidably disposed at the other end of the base plate 300, a two-contact assembly 600, and a telescopic rod 100.

[0033] See details Figure 2 and Figure 4 One end of the base plate 300 has a sliding groove 301, and a connecting block 200 is provided at its lower part. The lower end of the connecting block 200 has a threaded portion 201, and a threaded hole is provided on the lower end face of the threaded portion 201. The threaded portion 201 is threadedly connected to the end of the telescopic rod 100 through the threaded hole. The adjusting plate 500 can be fixed at a preset position in the sliding groove 301 by a bolt assembly. See also Figures 2 to 5 Two sets of contact assemblies 600 are respectively disposed on the fixed plate 400 and the adjusting plate 500. Each contact assembly 600 includes a strip-shaped contact 601. A detector 700 is connected between the two contacts 601 by a wire harness. The detector 700 is fixed on one side of the connecting block 200.

[0034] The fixed plate 400 is generally L-shaped, with its horizontal part fixedly connected to the base plate 300 and its vertical part provided with a contact 601; the adjusting plate 500 is generally L-shaped symmetrical to the fixed plate 400, with its horizontal part slidably disposed in the slide groove 301 and its vertical part provided with a contact 601.

[0035] See Figure 4 and Figure 5 The slide groove 301 has two rows of fixing holes, each including two fixing holes 302 arranged vertically opposite each other, and the fixing holes 302 penetrate the base plate 300. The adjusting plate 500 has two adjusting plate through holes 501 corresponding to the fixing hole structure, and the adjusting plate through holes 501 correspond to the fixing holes 302 to accommodate bolt assemblies.

[0036] See Figure 4 and Figure 5 The contact assembly 600 further includes a stud 603, a nut 602 disposed at one end of the stud 603, and a nut 604 threaded onto the stud 603. A through hole is provided through the stud 603 and the nut 602. One end of the contact 601 is bent and welded into the through hole. Mounting holes are provided on both the fixed plate 400 and the adjusting plate 500 corresponding to the stud 603. After the stud 603 passes through the mounting hole, the nut 604 is applied to cooperate with the nut 602 to fix the stud 603 onto the fixed plate 400 or the adjusting plate 500. Preferably, the mounting hole has a polygonal cross-section, and a polygonal key is provided on the stud 603 corresponding to the mounting hole. The key is disposed within the mounting hole to restrict the rotational movement of the stud 603.

[0037] See Figure 5 Two insulating support platforms 303 are provided on the side of the substrate 300 opposite to the slide groove 301. Resistance wires 800 are fixed on the two support platforms 303. A stud 603 on the fixed plate 400 is connected to one end of the resistance wire 800 via a wire 900. The other end of the resistance wire 800 is connected to the detector 700 via a wiring harness. A stud 603 on the adjusting plate 500 is connected to the detector 700 via a wiring harness. In this embodiment, a light source is installed inside the detector 700. When the contact 601 detects an electric spark, the light source emits light to indicate whether the skirt is leaking current. Preferably, the detector 700 has a built-in current sensor and a Bluetooth module. The resistance wire 800 is replaced by a power supply. The power supply, current sensor, and two contacts 601 are connected in series. Current is released to the skirt through the contacts 601 to detect the resistance of the skirt surface, and the resistance is used to determine whether the skirt is damaged.

[0038] In this embodiment, the substrate 300, the fixed plate 400 and the adjusting plate 500 are made of bakelite board or epoxy resin board, and the support platform 303 is made of the same material as the substrate 300.

[0039] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A live-line detection device for porcelain post insulators, characterized in that, It includes: The substrate (300) has a groove (301) at one end and a connecting block (200) at the bottom. A fixed plate (400) is fixed at the other end of the substrate (300); An adjusting plate (500) is slidably disposed within the slide groove (301), and is fixed at a preset position in the slide groove (301) by a bolt assembly; Two sets of contact assemblies (600) are respectively disposed on the fixed plate (400) and the adjusting plate (500). The contact assembly (600) includes a strip-shaped contact (601). A detector (700) is connected between the two contacts (601) by a wire harness. The detector (700) is fixed on one side of the connecting block (200). The telescopic rod (100) has one end threadedly connected to the connecting block (200).

2. The live-line detection device for porcelain post insulators according to claim 1, characterized in that, At least two rows of fixing holes are provided in the groove (301), the fixing hole structure includes two fixing holes (302) arranged opposite each other, and the fixing holes (302) pass through the substrate (300). The adjusting plate (500) has two adjusting plate through holes (501) corresponding to the fixing hole structure. The adjusting plate through holes (501) correspond to the fixing hole (302) to allow the bolt assembly to pass through.

3. The live-line detection device for porcelain post insulators according to claim 1, characterized in that, The contact assembly (600) further includes a stud (603), a nut (602) disposed at one end of the stud (603), and a nut (604) threaded onto the stud (603). A through hole is provided through the stud (603) and the nut (602), and one end of the contact (601) is bent and fixed in the through hole. The fixed plate (400) and the adjusting plate (500) are provided with mounting holes corresponding to the studs (603). After the studs (603) pass through the mounting holes, the nuts (604) are applied to fix the studs (603) on the fixed plate (400) or the adjusting plate (500).

4. The live-line detection device for porcelain post insulators according to claim 3, characterized in that, The mounting hole has a polygonal cross-section, and the stud (603) is provided with a polygonal key corresponding to the mounting hole. The key is located inside the mounting hole to restrict the rotational movement of the stud (603).

5. The live-line detection device for porcelain post insulators according to claim 3, characterized in that, Two insulating support platforms (303) are provided on the side of the substrate (300) opposite to the slide groove (301). Resistance wires (800) are fixed on the two support platforms (303). The studs (603) on the fixed plate (400) are connected to one end of the resistance wires (800) through wires (900). The other end of the resistance wires (800) is connected to the detector (700) through a wire harness. The studs (603) on the adjusting plate (500) are connected to the detector (700) through a wire harness.

6. The live-line detection device for porcelain post insulators according to claim 5, characterized in that, The substrate (300), the fixed plate (400), and the adjusting plate (500) are made of bakelite board or epoxy resin board.

7. The live-line detection device for porcelain post insulators according to claim 1, characterized in that, The lower end of the connecting block (200) is provided with a threaded part (201), and a threaded hole is provided on the lower end surface of the threaded part (201). The threaded part (201) is threadedly connected to the end of the telescopic rod (100) through the threaded hole.

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