Multifunctional partial discharge detection extension rod easy to adjust

Abstract

The invention relates to the field of electrical equipment testing tools and instruments, and discloses an easy-to-adjust multifunctional partial discharge detection extension rod which comprises an insulating rod, the top of the insulating rod is fixedly connected with a mounting block, a spherical joint is rotatably arranged in the mounting block, and the top of the spherical joint is fixedly connected with a mounting mechanism. A limiting mechanism is arranged in the mounting block, the limiting mechanism comprises a rubber block, the exterior of the rubber block is slidably connected to the interior of the mounting block, a limiting spring and an adjusting rod are fixedly connected to the two sides of the exterior of the rubber block, and the end, away from the rubber block, of the limiting spring is fixedly connected to the interior of the mounting block. According to the device, the probe is allowed to freely rotate in all directions through the arrangement of a rubber block and a limiting spring, a user can manually adjust a joint according to requirements, the probes of different types or specifications can be rapidly replaced according to requirements through the arrangement of a threaded column and a limiting plate, and the practicability of the device is greatly improved.

Description

Technical Field

[0001] The invention relates to the field of electric power equipment testing tools, and in particular to an easily adjustable multifunctional partial discharge detection extension rod. Background Art

[0002] Ultrasonic partial discharge detection and ultra-high frequency partial discharge detection are conventional means of live detection of high-voltage equipment in power systems. The detection instruments are usually divided into two parts, a larger instrument body and a smaller detection probe. During the operation, it is inevitable to encounter difficulties such as the large size of the equipment under test or the high test position. Operators often fix the probe to the specified position by climbing, which not only increases the difficulty of the operation, but also increases the risk of electric shock and falling.

[0003] Currently, a more common way to solve the above problem is to use a test extension rod to extend the test probe to a specified position. During the test, the probe needs to fit tightly with the tested position, and any gap will affect the result.

[0004] However, the angle of the existing extension rod cannot be adjusted or is difficult to adjust, the operation is cumbersome and time-consuming, and the extension rod is only suitable for the probe of the fixed instrument, while in actual work, multiple types of probes are often used at the same time, resulting in incompatibility between probes of different instruments. Summary of the invention

[0005] In order to make up for the above shortcomings, the present invention provides an easily adjustable multifunctional partial discharge detection extension rod, which aims to improve the problems in the prior art that the angle of the extension rod cannot be adjusted or is difficult to adjust, the operation is cumbersome and time-consuming, and the extension rod is only suitable for the probe of the fixed instrument, while in actual work, multiple types of probes often need to be used at the same time, resulting in the problem that probes of different instruments are incompatible.

[0006] In order to achieve the above-mentioned purpose, the present invention adopts the following technical scheme: an easily adjustable multifunctional partial discharge detection extension rod, comprising an insulating rod, the top of the insulating rod is fixedly connected to a mounting block, a spherical joint is rotatably provided inside the mounting block, the top of the spherical joint is fixedly connected to a mounting mechanism, a limiting mechanism is arranged inside the mounting block, the limiting mechanism comprises a rubber block, the outside of the rubber block is slidably connected to the inside of the mounting block, a limiting spring and an adjusting rod are fixedly connected on both sides of the outside of the rubber block, one end of the limiting spring away from the rubber block is fixedly connected to the inside of the mounting block, and the outside of the adjusting rod is slidably connected to the inside of the mounting block.

[0007] Furthermore, the mounting mechanism comprises a threaded column, the bottom end of which is fixedly connected to the outside of the ball joint, and the outside of the threaded column is fixedly connected to a limiting plate.

[0008] Furthermore, the outside of the threaded column is threadedly connected with a connecting block and a probe connecting pile.

[0009] Furthermore, a probe connecting plate is fixedly connected to the top of the connecting block.

[0010] Furthermore, a limiting groove is provided on the outside of the probe connecting pile, and a limiting sleeve rope is arranged inside the limiting groove.

[0011] Furthermore, one end of the adjusting rod away from the rubber block is fixedly connected to a pressing plate.

[0012] The present invention has the following beneficial effects: In the present invention, when the angle needs to be changed, the adjusting rod is driven to move by the pressing plate, and the adjusting rod drives the rubber block to move, so that the rubber block is separated from the surface of the ball joint. At this time, the ball joint allows the probe to rotate freely in all directions. The user can manually adjust the joint according to needs. When it is adjusted to the required angle, the pressing plate is released, and then the limit spring drives the rubber block to move. The friction force with the ball joint is increased by the rubber block, so that the ball joint is limited and fixed, ensuring that the probe will not drift at any angle, so that the probe can reach the required angle position.

[0013] In the present invention, users can quickly replace probes of different types or specifications as needed, such as ultrasonic probes and UHF probes, which is very useful for scenarios with various detection requirements. The threaded connection makes the replacement work simple and reliable. The threaded column connection method is usually stable and easy to operate, reducing the risk of operating difficulties or unstable connections when replacing probes. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 A three-dimensional diagram of the easily adjustable multifunctional partial discharge detection extension rod proposed by the present invention; Figure 2 A cross-sectional view of the mounting block structure of the easily adjustable multifunctional partial discharge detection extension rod proposed by the present invention; Figure 3 This is a schematic diagram of the probe connection pile structure of the easily adjustable multifunctional partial discharge detection extension rod proposed by the present invention.

[0015] Legend: 1. Insulating rod; 2. Adjusting rod; 3. Rubber block; 4. Mounting block; 5. Ball joint; 6. Threaded column; 7. Limit plate; 8. Probe connecting plate; 9. Connecting block; 10. Probe connecting pile; 11. Limiting rope; 12. Limiting groove; 13. Pressing plate; 14. Limiting spring. DETAILED DESCRIPTION

[0016] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0017] Reference Figure 1 and Figure 2 An embodiment of the present invention is as follows: an easily adjustable multifunctional partial discharge detection extension rod comprises an insulating rod 1, a mounting block 4 is fixedly connected to the top of the insulating rod 1, a ball joint 5 is rotatably provided inside the mounting block 4, a mounting mechanism is fixedly connected to the top of the ball joint 5, a limiting mechanism is arranged inside the mounting block 4, the limiting mechanism comprises a rubber block 3, the outside of the rubber block 3 is slidably connected to the inside of the mounting block 4, a limiting spring 14 and an adjusting rod 2 are fixedly connected to the outside of the rubber block 3 on both sides, the limiting spring 14 plays a role of resetting and squeezing, one end of the limiting spring 14 away from the rubber block 3 is fixedly connected to the inside of the mounting block 4, and the outside of the adjusting rod 2 is slidably connected to the inside of the mounting block 4.

[0018] When it comes to adjusting the angle of the probe, it is necessary to press the pressing plate 13 to drive the adjustment rod 2 to move, and the adjustment rod 2 further pushes the rubber block 3 to move synchronously. In this process, the rubber block 3 gradually separates from the surface of the ball joint 5, and the ball joint 5 is unlocked at this time, and the probe can then rotate freely and flexibly in all directions. The user can manually and carefully adjust the joint to the desired angle according to actual needs. After the angle adjustment is completed, release the pressing plate 13, and the limit spring 14 will play a role, pulling the rubber block 3 to move in the opposite direction. With the help of the friction increase effect generated when the rubber block 3 contacts the surface of the ball joint 5, the ball joint 5 is effectively limited and firmly fixed, thereby effectively ensuring that the probe will not have any angle deviation or drift, so that it is accurately in the required angle position, providing reliable angle guarantee for subsequent detection operations.

[0019] Reference Figure 1 , Figure 2 and Figure 3 The installation mechanism includes a threaded column 6, the bottom end of the threaded column 6 is fixedly connected to the outside of the ball joint 5, the outside of the threaded column 6 is fixedly connected to a limit plate 7, the limit plate 7 is used to install a limit probe connector, the outside of the threaded column 6 is threadedly connected to a connecting block 9 and a probe connecting pile 10, the top of the connecting block 9 is fixedly connected to a probe connecting plate 8, a limit groove 12 is provided on the outside of the probe connecting pile 10, a limit sleeve 11 is arranged inside the limit groove 12, and a pressing plate 13 is fixedly connected to the end of the adjusting rod 2 away from the rubber block 3, and the probe fixed inside the probe connecting pile 10 is limited and fixed by the limit sleeve 11 and the limit groove 12.

[0020] When the probe needs to be replaced, the connector of the probe is unscrewed from the threaded column 6. The user can quickly replace probes of different types or specifications as needed, such as ultrasonic probes and UHF probes. This is very useful for scenarios with various detection requirements. The threaded connection makes the replacement work simple and reliable. The threaded column 6 connection method is usually stable and easy to operate, reducing the risk of operating difficulties or unstable connections when replacing the probe.

[0021] Working principle: When the probe angle needs to be adjusted, the adjusting rod 2 is driven to move by the pressing plate 13, and the adjusting rod 2 drives the rubber block 3 to move, so that the rubber block 3 is separated from the surface of the ball joint 5. At this time, the ball joint 5 allows the probe to rotate freely in all directions. The user can manually adjust the joint according to needs. When it is adjusted to the required angle, release the pressing plate 13, and then the limit spring 14 drives the rubber block 3 to move. The friction with the ball joint 5 is increased by the rubber block 3, so that the ball joint 5 is limited and fixed to ensure that the probe will not have any angle drift, so that the probe reaches the required angle position. When the probe needs to be replaced, the connector of the probe is unscrewed from the threaded column 6. The user can quickly replace probes of different types or specifications as needed, such as ultrasonic probes and UHF probes. This is very useful for scenarios with various detection requirements. The threaded connection makes the replacement work simple and reliable. The threaded column 6 connection method is usually stable and easy to operate, reducing the risk of operating difficulties or unstable connections when replacing the probe.

[0022] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An easily adjustable multifunctional partial discharge detection extension rod, comprising an insulating rod (1), characterized in that: The top of the insulating rod (1) is fixedly connected to a mounting block (4), a spherical joint (5) is rotatably arranged inside the mounting block (4), a mounting mechanism is fixedly connected to the top of the spherical joint (5), and a limiting mechanism is arranged inside the mounting block (4); The limiting mechanism comprises a rubber block (3), the outside of the rubber block (3) is slidably connected to the inside of the mounting block (4), the two sides of the outside of the rubber block (3) are fixedly connected to a limiting spring (14) and an adjusting rod (2), one end of the limiting spring (14) away from the rubber block (3) is fixedly connected to the inside of the mounting block (4), and the outside of the adjusting rod (2) is slidably connected to the inside of the mounting block (4).

2. The easily adjustable multifunctional partial discharge detection extension rod according to claim 1, characterized in that: The mounting mechanism comprises a threaded column (6), the bottom end of the threaded column (6) being fixedly connected to the outside of the ball joint (5), and the outside of the threaded column (6) being fixedly connected to a limiting plate (7).

3. The easily adjustable multifunctional partial discharge detection extension rod according to claim 2 is characterized in that: The outside of the threaded column (6) is threadedly connected to a connecting block (9) and a probe connecting pile (10).

4. The easily adjustable multifunctional partial discharge detection extension rod according to claim 3 is characterized in that: The top of the connection block (9) is fixedly connected to a probe connection plate (8).

5. The easily adjustable multifunctional partial discharge detection extension rod according to claim 3 is characterized in that: A limiting groove (12) is provided on the outside of the probe connection pile (10), and a limiting sleeve rope (11) is arranged inside the limiting groove (12).

6. The easily adjustable multifunctional partial discharge detection extension rod according to claim 1, characterized in that: One end of the adjustment rod (2) away from the rubber block (3) is fixedly connected to a pressing plate (13).

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