Detection equipment for power construction

Abstract

The invention relates to the field of electric power detection, in particular to detection equipment for electric power construction, which comprises a mounting sleeve, a movable driving part I and a detection pen, a movable driving part I is mounted on the mounting sleeve; the detection pen is arranged in the mounting sleeve; the driving end of the movable driving part I is connected with the detection pen; the device further comprises a first air pipe, a second moving driving piece and a shielding frame. A gas pipe I for conveying protective gas is mounted on the mounting sleeve; an air outlet of the air pipe I is positioned on one side of a pen point of the detection pen; a movable driving part II is mounted on the mounting sleeve; the shade frame is arranged outside the mounting sleeve in a sleeving manner; the driving end of the movable driving part II is connected with the shielding frame; when insulation detection is carried out on the electrical equipment, the shielding gas sprayed out of the gas pipe I is covered by the shielding frame, so that the shielding gas is concentrated at the pen point of the detection pen, and diffusion of the shielding gas is reduced.

Description

Technical Field

[0001] This invention relates to the field of power testing, and more particularly to a testing device for power construction. Background Technology

[0002] Power testing equipment refers to equipment used for testing, verification, inspection, and acceptance of power construction and power grid operation. It provides reliable assurance for the safety and reliability of power operation. Among them, insulation testing mainly targets the insulation system in power equipment to test and evaluate it, ensuring that the insulation system of the equipment can effectively isolate electrical components, prevent current from passing through, and prevent insulation breakdown or insulation failure.

[0003] For example, Chinese patent CN120064910A discloses a safety detection device for power engineering. It blows sulfur hexafluoride gas onto the surface of the detection point to form a protective layer, which isolates the air and prevents the detection point from being damaged by electric arcs or sparks that may occur during detection. However, it has the following defects: the protective gas is blown directly onto the detection position, which can easily lead to the leakage of the protective gas, resulting in poor isolation effect of the protective gas on the detection position. Summary of the Invention

[0004] In order to overcome the shortcomings of existing insulation testing equipment in terms of poor isolation effect, the present invention provides a testing device for power construction.

[0005] The technical solution is as follows: A power construction testing device includes an installation sleeve, a first moving drive component, and a probe; the first moving drive component is installed on the installation sleeve; the probe is disposed inside the installation sleeve; the driving end of the first moving drive component is connected to the probe; it also includes a first air pipe, a second moving drive component, and a shielding frame; the first air pipe for conveying protective gas is installed on the installation sleeve; the air outlet of the first air pipe is located on one side of the probe tip; the second moving drive component is installed on the installation sleeve; the shielding frame is fitted outside the installation sleeve; the driving end of the second moving drive component is connected to the shielding frame; when performing insulation testing on power equipment, the shielding frame covers the protective gas ejected from the first air pipe, allowing the protective gas to concentrate at the probe tip and reducing the diffusion of the protective gas.

[0006] Furthermore, the mounting sleeve is equipped with a second air pipe for drawing and recovering protective gas, and the air intake of the second air pipe is located on the other side of the probe tip.

[0007] Furthermore, the shielding frame has a notch, and when the shielding frame covers the insulation detection position of the power equipment, the notch forms a gap between the shielding frame and the power equipment.

[0008] Furthermore, a shielding structure is provided at one end of the mounting sleeve near the shielding frame, which shields the tip of the probe pen located inside the mounting sleeve.

[0009] Furthermore, the shielding structure is a valve piece, which has a cross-shaped seam. When the probe is located inside the mounting sleeve, the valve piece seals one end of the mounting sleeve. When the probe tip moves out of the mounting sleeve, the probe tip pushes open the cross-shaped seam of the valve piece.

[0010] Furthermore, when the probe is located inside the mounting sleeve, the tip of the probe rests against the cross joint of the valve piece.

[0011] Furthermore, two shielding plates are installed inside the shielding frame, and the two shielding plates are located between the first air pipe and the second air pipe. The mounting sleeve is provided with a clearance groove for the shielding plates to move.

[0012] Furthermore, the notch is located on the side close to the second trachea.

[0013] Furthermore, the mask frame is made of a transparent material.

[0014] Furthermore, the contact surface between the shielding frame and the electrical equipment to be tested is covered with a rubber layer.

[0015] The present invention has the following advantages: The present invention utilizes the shielding effect of the shielding frame to intercept and concentrate the protective gas ejected from the first air tube at the detection position of the power equipment, preventing the protective gas from spreading in all directions. At the same time, a baffle plate is added inside the shielding frame. Two baffle plates located above and below the probe pen are placed between the first and second air tubes, thereby blocking the protective gas ejected from the first air tube. This prevents the protective gas ejected from the first air tube from being directly drawn into the second air tube. Instead, it is drawn into the second air tube through the gap between the probe pen tip and the two baffle plates, thus ensuring that the protective gas can effectively cover the probe pen tip. Attached Figure Description

[0016] Figure 1 The diagram shown is a three-dimensional structural schematic of the power construction testing equipment of the present invention;

[0017] Figure 2 The diagram shown is a three-dimensional structural schematic of the present invention, in which the mounting sleeve and the shielding frame are separated.

[0018] Figure 3 The diagram shown is a cross-sectional view of the present invention;

[0019] Figure 4 The view shown is a partial cross-sectional view of the present invention;

[0020] Figure 5 This diagram illustrates the detection operation status of the present invention.

[0021] Wherein: 1-Installation sleeve, 11-Avoidance groove, 2-Movement drive component one, 3-Detector pen, 4-Air tube one, 5-Air tube two, 6-Movement drive component two, 7-Shielding frame, 71-Notch, 8-Shielding plate, 9-Valve piece. Detailed Implementation

[0022] The present invention will be further described below with reference to specific embodiments. It should also be noted that, unless otherwise explicitly specified and limited, terms such as "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in the present invention based on the specific circumstances.

[0023] Example 1: A testing device for power construction, such as Figures 1-5 As shown, the device includes a mounting sleeve 1, a moving drive component 2, and a probe 3. The moving drive component 2, which is an electrically driven push rod, is mounted on the mounting sleeve 1. The probe 3 is slidably disposed inside the mounting sleeve 1. The driving end of the moving drive component 2 is connected to one end of the probe 3. The device also includes an air pipe 4, a moving drive component 6, and a shielding frame 7. The air pipe 4 is installed through the mounting sleeve 1. The air outlet of the air pipe 4 is located on one side of the probe tip of the probe 3. The moving drive component 6, which is an electrically driven push rod, is mounted on the mounting sleeve 1. The shielding frame 7 is slidably sleeved outside one end of the mounting sleeve 1. The driving end of the moving drive component 6 is connected to one end of the shielding frame 7.

[0024] An air tube 2 5 is installed through the mounting sleeve 1, and the air intake of the air tube 2 5 is located on the other side of the pen tip of the probe pen 3.

[0025] The shielding frame 7 has a notch 71. When the shielding frame 7 covers the insulation detection position of the power equipment, the notch 71 forms a gap between the shielding frame 7 and the power equipment.

[0026] The mounting sleeve 1 is provided with a shielding structure at one end near the shielding frame 7, which shields the tip of the probe pen 3 located inside the mounting sleeve 1.

[0027] The shielding structure is a valve piece 9, which has a cross-shaped seam.

[0028] When the probe 3 is located inside the mounting sleeve 1, the tip of the probe 3 rests against the cross joint of the valve piece 9.

[0029] Example 2: Based on Example 1, as follows Figures 1-5 As shown, two symmetrically distributed shielding plates 8 are installed inside the shielding frame 7. The two shielding plates 8 are located between the first air pipe 4 and the second air pipe 5. An avoidance groove 11 is provided on the mounting sleeve 1.

[0030] The notch 71 is located on the side near the second trachea 5.

[0031] The mask frame 7 is made of transparent material, which makes it easy for personnel to observe the testing process.

[0032] The contact surface between the shielding frame 7 and the electrical equipment under test is covered with a rubber layer to ensure a tight contact between the shielding frame 7 and the electrical equipment under test.

[0033] First, the mounting sleeve 1 of this device is installed on the mobile trolley of the external device. The mobile trolley is equipped with an insulation detector and an air pump. The mobile trolley drives the mounting sleeve 1 and its parts to move synchronously, allowing the device to move to the location of the electrical equipment to be tested. The tail of the probe 3 is electrically connected to the external insulation detector through a wire. The insulation detector is an electrical sensor. The probe tip of the probe 3 contacts the electrical equipment, and then the external insulation detector displays the insulation performance of the tested electrical equipment.

[0034] Based on the above detection principle, the specific steps of using this invention are as follows:

[0035] First, considering that dust may be present on the surface of the electrical equipment being tested, which could affect the insulation performance test, dust removal is necessary. Therefore, an external moving trolley is used to move the mounting sleeve 1 and its components as a whole. The initial state of this invention is as follows: Figure 1 As shown, the shielding frame 7 protrudes from the end of the mounting sleeve 1, thereby allowing the shielding frame 7 to move to the detection position of the power equipment and shield the detection position. The first air pipe 4 and the second air pipe 5 are pre-connected to different external air pumps. At this time, the first air pipe 4 outputs air. Since the shielding frame 7 has shielded the detection position of the power equipment, only the notch 71 opened on the shielding frame 7 allows air to flow out. Therefore, the air sprayed out by the first air pipe 4 is used to blow air to remove dust from the detection position. In addition, the shielding effect of the shielding frame 7 allows the air carrying dust to flow out directionally from the notch 71, away from the detection position, so as to prevent the dust blown out from spreading at the detection position and affecting subsequent detection.

[0036] Furthermore, by sealing the tip of the probe pen 3 inside the mounting sleeve 1 through the valve piece 9, it is possible to prevent dust blown up from getting on the tip of the probe pen 3. At this time, the tip of the probe pen 3 is pressed against the cross joint of the valve piece 9 to prevent the valve piece 9 from being blown open.

[0037] Second, after dust removal, an inspection operation is performed. The second moving drive unit 6 pushes the shield frame 7 to move, while simultaneously controlling the external moving trolley to move the mounting sleeve 1 away from the inspection position of the power equipment, thereby increasing the distance between the mounting sleeve 1 and the inspection position. The shield frame 7 moves to a position still attached to the inspection position of the power equipment. Meanwhile, the first moving drive unit 2 pushes the probe pen 3 out of the mounting sleeve 1, and the tip of the probe pen 3 pushes open the diaphragm 9. Figure 5 As shown, firstly, switch air tube 4 to spray protective gas, using sulfur hexafluoride (SF6) gas. Simultaneously, control air tube 5 to draw in the SF6 gas for recovery and collection into a collection container connected to an external air pump. At this time, the shielding effect of the shielding frame 7 can intercept and concentrate the protective gas sprayed from air tube 4 at the detection position of the power equipment, preventing the protective gas from spreading. At the same time, a baffle plate 8 is added inside the shielding frame 7. The two baffle plates 8, located above and below the probe 3 respectively, block the protective gas sprayed from air tube 4 and air tube 5, thus preventing the protective gas sprayed from air tube 4 from being directly drawn into air tube 25. Instead, it is drawn into air tube 25 through the gap between the probe tip of the probe 3 and the two baffle plates 8, thus ensuring that the protective gas can effectively cover the probe tip of the probe 3. Then, move the probe 3 until the probe tip contacts the detection position of the power equipment to complete the insulation detection operation of the power equipment.

[0038] Furthermore, the gap 71 is located on the side close to the second trachea 5, so that the air at the gap 71 is in the path where the protective gas is drawn away, making it difficult for the air to approach the detection position covered by the protective gas, that is, the outside air will be drawn away as soon as it gets close.

[0039] When no routine testing is being performed, the tip of the probe pen 3 can be retracted into the installation sleeve 1, where it is effectively protected from dust by the sealing valve 9.

[0040] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A power construction inspection device, comprising an installation sleeve (1), a moving drive component (2), and a probe (3); the moving drive component (2) is installed on the installation sleeve (1); the probe (3) is disposed inside the installation sleeve (1); the driving end of the moving drive component (2) is connected to the probe (3); characterized in that, It also includes a first air pipe (4), a second moving drive component (6), and a shield frame (7); the first air pipe (4) for conveying protective gas is installed on the mounting sleeve (1); the air outlet of the first air pipe (4) is located on the side of the pen tip of the probe pen (3); the second moving drive component (6) is installed on the mounting sleeve (1); the shield frame (7) is sleeved outside the mounting sleeve (1); the driving end of the second moving drive component (6) is connected to the shield frame (7); when performing insulation testing on power equipment, the protective gas sprayed from the first air pipe (4) is covered by the shield frame (7), so that the protective gas is concentrated at the pen tip of the probe pen (3) and the diffusion of the protective gas is reduced.

2. The power construction testing equipment according to claim 1, characterized in that, The mounting sleeve (1) is equipped with a second air pipe (5) for drawing and recovering protective gas, and the air intake of the second air pipe (5) is located on the other side of the pen tip of the probe pen (3).

3. The power construction testing equipment according to claim 2, characterized in that, The shield frame (7) has a notch (71). When the shield frame (7) covers the insulation detection position of the power equipment, the notch (71) forms a gap between the shield frame (7) and the power equipment.

4. The power construction testing equipment according to claim 2, characterized in that, The mounting sleeve (1) has a shielding structure at one end near the shielding frame (7), which shields the tip of the probe pen (3) located inside the mounting sleeve (1).

5. The power construction testing equipment according to claim 4, characterized in that, The shielding structure is a valve piece (9), which has a cross-shaped seam. When the probe (3) is inside the mounting sleeve (1), the valve piece (9) seals one end of the mounting sleeve (1). When the probe tip (3) moves out of the mounting sleeve (1), the probe tip (3) pushes open the cross-shaped seam of the valve piece (9).

6. The power construction testing equipment according to claim 5, characterized in that, When the probe (3) is located inside the mounting sleeve (1), the tip of the probe (3) abuts against the cross joint of the valve piece (9).

7. The power construction testing equipment according to claim 3, characterized in that, Two shielding plates (8) are installed inside the shielding frame (7). The two shielding plates (8) are located between the first air pipe (4) and the second air pipe (5). The mounting sleeve (1) is provided with a clearance groove (11) for the shielding plates (8) to move.

8. The power construction testing equipment according to claim 7, characterized in that, The notch (71) is located on the side near the second trachea (5).

9. A power construction testing device according to claim 1, characterized in that, The mask frame (7) is made of transparent material.

10. A power construction testing device according to any one of claims 1-9, characterized in that, The shielding frame (7) is covered with a rubber layer on the contact surface with the electrical equipment to be tested.

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