Multi-purpose test frame for electrical test of low-voltage line insulator
By designing a multi-purpose test frame, the problems of inconvenient transportation and large space occupation of electrical testing equipment for low-voltage line insulators were solved, realizing the convenience and space saving of radial and axial testing of insulators.
Patent Information
- Application Number
- CN202422842735.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-21
- Publication Date
- 2025-10-31
- Estimated Expiration
- 2034-11-21
AI Technical Summary
Existing electrical testing equipment for low-voltage line insulators is highly specialized, resulting in inconvenient transportation and large space requirements.
Design a multi-purpose test frame that can perform both radial and axial tension tests on insulators. It adopts a horizontal fixed base, vertical rod and accompanying insulator series structure for easy transportation and storage.
It achieves versatility in insulator testing, saves storage space, and facilitates transportation.
Smart Images
Figure CN223501096U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of electrical testing technology for insulators, specifically a multi-purpose test frame for electrical testing of low-voltage line insulators. Background Technology
[0002] Electrical testing of low-voltage line insulators is a crucial aspect of type testing, often involving situations where the insulators are tensioned during installation. Since low-voltage line insulators are used as accessories in electrical installations, electrical testing equipment simulating their operational conditions needs to be designed. Generally, electrical tests are required for low-voltage spool-type, disc-type, and tensioned insulators; some require radial tension testing, while others require axial tension testing. However, designing dedicated test racks for each specific electrical test is inconvenient for long-distance transport, significantly increasing transportation costs and requiring excessive storage space. Utility Model Content
[0003] This utility model aims to at least partially solve one of the technical problems in the related technology: to provide a multi-purpose test frame for electrical testing of low-voltage line insulators. This utility model test frame can be used for both radial tension testing and axial tension testing of insulators, saving storage space and facilitating transportation.
[0004] The technical solution of this utility model is as follows: A multi-purpose test frame for electrical testing of low-voltage line insulators includes a horizontal fixed base, a first vertical rod, and a second vertical rod; both the first vertical rod and the second vertical rod are vertically fixed to the horizontal fixed base; the height of the first vertical rod is greater than that of the second vertical rod; the first vertical rod is provided with an insulator radial test fixed base and a lifting ring; the top of the second vertical rod is provided with a string of auxiliary insulators connected in series; one end of the string of auxiliary insulators is hinged to the top of the second vertical rod.
[0005] As an optimization, the accompanying insulator is an umbrella-shaped suspension insulator.
[0006] Preferably, the free end of the test insulator string is connected directly or via a conductor to a turnbuckle.
[0007] As an optimization, the angle between the line connecting the lifting ring to the top of the second vertical rod and the horizontal plane is greater than or equal to 30°.
[0008] As an optimization, the insulator radial test mounting bracket includes a horizontally arranged upper and lower crossbar and a vertically arranged insulator fixing bolt; the insulator fixing bolt passes through the upper and lower crossbars; the upper and lower crossbars are provided with through holes or notches that cooperate with the insulator fixing bolt.
[0009] Preferably, the insulator fixing bolt is provided with a plurality of nuts for limiting the insulator to be tested, located between the upper and lower crossbars.
[0010] Preferably, the horizontal fixed seat, the first vertical rod, and the second vertical rod are all made of square steel.
[0011] Preferably, the first vertical rod, the second vertical rod, and the horizontal fixed seat are detachably connected or fixedly connected, such as by bolts or by fasteners.
[0012] The present invention has the following advantages: the test frame of the present invention can be used for both radial tension testing and axial tension testing of insulators. The multi-purpose design not only saves storage space of the test frame, but also facilitates the transportation of the test frame. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of the structure of a multi-purpose test fixture for electrical testing of low-voltage line insulators, as shown in the embodiment.
[0014] Figure 2 This is a schematic diagram illustrating the application of a multi-purpose test fixture for electrical testing of low-voltage line insulators in radial tension testing.
[0015] Figure 3 This is a schematic diagram illustrating the application of a multi-purpose test fixture for electrical testing of low-voltage line insulators in axial tension testing.
[0016] Figure 4 for Figure 2 A three-dimensional schematic diagram of an insulator used for radial tension testing.
[0017] Figure 5 for Figure 3 A three-dimensional schematic diagram of an insulator for axial tension testing.
[0018] Figure 6 This is a top view of the notch in the upper or lower horizontal bar in the embodiment.
[0019] The components include: 1. Horizontal fixed seat; 2. First vertical rod; 3. Second vertical rod; 4. Insulator radial test fixed seat; 41. Upper horizontal bar; 42. Lower horizontal bar; 43. Insulator fixing bolt; 5. Lifting ring; 6. Accompanying insulator string; 7. Turnbuckle. Detailed Implementation
[0020] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.
[0021] Now refer to Figure 1-6 A multi-purpose test frame for electrical testing of low-voltage line insulators is described by way of example only, including a horizontal fixed base 1, a first vertical rod 2, and a second vertical rod 3; both the first vertical rod 2 and the second vertical rod 3 are vertically fixed to the horizontal fixed base 1; the height of the first vertical rod 2 is greater than that of the second vertical rod 3; the first vertical rod 2 is provided with an insulator radial test fixing base 4 and a lifting ring 5; the top of the second vertical rod 3 is provided with a string of three auxiliary insulators connected in series 6; one end of the string of auxiliary insulators 6 is hinged to the top of the second vertical rod 3.
[0022] The accompanying insulator is an umbrella-shaped suspension insulator.
[0023] The free end of the test insulator string 6 is connected to a turnbuckle 7 via a wire.
[0024] The angle between the line connecting the lifting ring 5 to the top of the second vertical rod 3 and the horizontal plane is 36°.
[0025] The insulator radial test mounting base 4 includes a horizontally arranged upper crossbar 41 and a lower crossbar 42, and a vertically arranged insulator fixing bolt 43; the insulator fixing bolt 43 passes through the upper crossbar 41 and the lower crossbar 42; the upper crossbar 41 and the lower crossbar 42 are provided with notches that mate with the insulator fixing bolt 43, such as... Figure 6 As shown.
[0026] The insulator fixing bolt 43 has two nuts located between the upper crossbar 41 and the lower crossbar 42 for limiting the position of the insulator to be tested.
[0027] The horizontal fixed base 1, the first vertical rod 2, and the second vertical rod 3 are all made of square steel.
[0028] like Figure 2 As shown, in this embodiment, when the multi-purpose test frame for electrical testing of low-voltage line insulators is used for radial tension testing of insulators, firstly, the insulator fixing bolt 43 is taken out and put into the insulator to be tested. Then, the insulator to be tested is limited to the middle of the insulator fixing bolt 43 with a nut. Then, both ends of the insulator fixing bolt 43 are inserted into the notch of the upper crossbar 41 and the lower crossbar 42, and the insulator fixing bolt 43 is limited at least at the top with a nut. Then, the free end of the turnbuckle 7 is connected to the middle of the insulator to be tested through a wire. After adjusting the turnbuckle 7 to tighten the wire, the wire is energized to carry out the electrical test of the insulator.
[0029] like Figure 3As shown in the figure, when the multi-purpose test frame for electrical testing of low-voltage line insulators in this embodiment is used for axial tension testing of insulators, one end of the insulator to be tested is first connected to the lifting ring 5 through a wire, and then the other end of the insulator to be tested is connected to the free end of the turnbuckle 7 through a wire. After adjusting the turnbuckle 7 to tighten the wire, the wire is energized to carry out the electrical test of the insulator.
[0030] A three-dimensional schematic diagram of the insulator used for radial tension testing in this embodiment is shown below. Figure 4 As shown. A three-dimensional schematic diagram of an insulator used for axial tension testing of insulators is shown below. Figure 5 As shown.
[0031] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.
[0032] For those skilled in the art, various changes and modifications will undoubtedly be apparent after reading the above description. Therefore, the appended claims should be considered as covering all changes and modifications that encompass the true intent and scope of this utility model. Any and all equivalent scope and content within the scope of the claims should be considered as still falling within the intent and scope of this utility model.
Claims
1. A multi-purpose test frame for electrical testing of low-voltage line insulators, characterized in that: It includes a horizontal fixed base (1), a first vertical rod (2) and a second vertical rod (3); the first vertical rod (2) and the second vertical rod (3) are both vertically fixed to the horizontal fixed base (1); the height of the first vertical rod (2) is greater than that of the second vertical rod (3); the first vertical rod (2) is provided with an insulator radial test fixed base (4) and a lifting ring (5); the top of the second vertical rod (3) is provided with a string of test insulators (6) composed of several test insulators connected in series; one end of the string of test insulators (6) is hinged to the top of the second vertical rod (3).
2. The multi-purpose test frame for electrical testing of low-voltage line insulators according to claim 1, characterized in that: The accompanying insulator is an umbrella-shaped suspension insulator.
3. The multi-purpose test frame for electrical testing of low-voltage line insulators according to claim 2, characterized in that: The free end of the test insulator string (6) is directly or via a conductor connected to a turnbuckle (7).
4. The multi-purpose test frame for electrical testing of low-voltage line insulators according to claim 3, characterized in that: The angle between the line connecting the top of the lifting ring (5) to the top of the second vertical rod (3) and the horizontal plane is greater than or equal to 30°.
5. The multi-purpose test fixture for electrical testing of low-voltage line insulators according to claim 4, characterized in that: The insulator radial test mounting base (4) includes a horizontally arranged upper crossbar (41) and a lower crossbar (42) and a vertically arranged insulator fixing bolt (43); the insulator fixing bolt (43) passes through the upper crossbar (41) and the lower crossbar (42); the upper crossbar (41) and the lower crossbar (42) are provided with through holes or notches that cooperate with the insulator fixing bolt (43).
6. The multi-purpose test fixture for electrical testing of low-voltage line insulators according to claim 5, characterized in that: The insulator fixing bolt (43) is provided with a plurality of nuts for limiting the insulator to be tested, located between the upper crossbar (41) and the lower crossbar (42).
7. The multi-purpose test frame for electrical testing of low-voltage line insulators according to claim 6, characterized in that: The horizontal fixed seat (1), the first vertical rod (2) and the second vertical rod (3) are all made of square steel.
8. The multi-purpose test frame for electrical testing of low-voltage line insulators according to claim 7, characterized in that: The first vertical rod (2), the second vertical rod (3), and the horizontal fixed seat (1) are detachably connected.