Power equipment partial discharge detection device

Abstract

The invention discloses a partial discharge detection device for power equipment. The partial discharge detection device comprises a mounting seat, a sliding seat, a handle, a detection probe, a bracket, a mounting box, a turntable, a pull rope, a pawl, a ratchet wheel, a gear, a rack, a driving through groove, a mounting groove, supporting legs, a limiting disc, a movable rod and a limiting spring, the support is in a vertical state by pulling the movable rod, relieving limitation of the movable rod on the limiting disc and rotating the mounting base, after adjustment is completed, the movable rod is loosened, the limiting disc continues to be clamped under the reset effect of the limiting spring, and positioning of the mounting base and the support after rotation is achieved. The pull rope is pulled, so that the pawl rotates to deviate from the ratchet wheel, positioning of the rotating disc is relieved, the rotating disc is rotated to drive the gear to rotate, the sliding seat is driven to slide out of the containing cavity of the mounting seat, and the detection probe can detect remote power equipment in a limited space.

Description

Technical Field

[0001] This invention relates specifically to the field of partial discharge detection, and more specifically to a partial discharge detection device for power equipment. Background Technology

[0002] Power systems mainly consist of two categories: power generation equipment and power supply equipment. Power generation equipment primarily includes power plant boilers, steam turbines, gas turbines, water turbines, generators, transformers, etc. Power supply equipment mainly includes transmission lines of various voltage levels, instrument transformers, contactors, etc. The vital role of power equipment in our lives and production cannot be ignored. It brings us great convenience and has become an important energy source in our production and daily life. During the use of power equipment, localized discharge phenomena may occur in the insulation medium of the equipment. If these phenomena are not detected and dealt with in time, they may lead to equipment damage or even safety accidents.

[0003] To facilitate daily use and maintenance, electrical equipment is usually placed in the power room. However, the storage of a certain number of electrical devices reduces the space available for maintenance operations inside the power room, making it difficult for maintenance personnel to stretch out. This could lead to them touching electrical equipment that is leaking electricity, resulting in a safety accident. Summary of the Invention

[0004] The purpose of this invention is to provide a partial discharge detection device for power equipment to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A partial discharge detection device for power equipment, comprising:

[0007] The mounting base has a receiving cavity, and a sliding seat is slidably connected in the receiving cavity. A detection probe is connected to the sliding seat, and the sliding seat slides out of the receiving cavity to perform long-distance discharge detection.

[0008] The bracket, the mounting base and the bracket are rotatably connected, and the mounting base rotates to perform discharge detection in different directions.

[0009] Preferably, the sliding seat has a drive groove, a rack is connected to the inner wall of the drive groove, a gear is provided in the receiving cavity, a turntable is rotatably provided on the mounting seat, the gear and the turntable are fixedly connected, and the gear and the rack mesh.

[0010] Preferably, a ratchet is fixedly connected to the gear, a pawl is rotatably connected to the mounting base, the other end of the pawl is engaged in the groove of the ratchet, and a spring is connected to the mounting base, with one end of the spring connected to the pawl.

[0011] Preferably, the mounting base is further provided with a mounting box, and the pawl, ratchet and spring are all covered inside the mounting box.

[0012] Preferably, a pull rope is connected to the pawl, and a through hole is provided on the mounting box, through which one end of the pull rope passes.

[0013] Preferably, a limiting plate is connected to the bracket, and a movable rod is slidably connected to the mounting base. The side wall of the movable rod is connected to a limiting spring by a locking pin, and one end of the movable rod is engaged with the limiting plate.

[0014] Preferably, the sliding seat is further provided with a mounting groove, and a support foot is provided in the mounting groove, the support foot being rotatably connected to the sliding seat.

[0015] Preferably, the mounting base is also connected to a handle.

[0016] Compared with the prior art, the beneficial effects of the present invention are:

[0017] 1. By sliding out of the receiving cavity via the sliding seat, the overall length of the device is increased, thereby enabling long-distance discharge detection. This avoids the inconvenience of operation for maintenance personnel in a confined space, which could lead to safety accidents. At the same time, the device can be placed horizontally to inspect horizontal electrical equipment or vertically to inspect vertical electrical equipment, depending on maintenance needs. The device can then slide out of the sliding seat and use the detection probe at its end for detection.

[0018] 2. The mounting base can be supported by a bracket, avoiding the fatigue caused by manual support by maintenance personnel. At the same time, since the mounting base and the bracket are rotatably connected, the mounting base can be rotated during testing to increase the detection range. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0020] Figure 2 This is a schematic diagram of the sliding seat structure of the present invention;

[0021] Figure 3 This is a schematic diagram of the bottom structure of the sliding seat of the present invention;

[0022] Figure 4 This is a schematic diagram of the gear structure of the present invention;

[0023] Figure 5 This is a schematic diagram of the mounting base structure of the present invention;

[0024] Figure 6 for Figure 5 Enlarged view of point A;

[0025] In the diagram: 1. Mounting base; 2. Sliding base; 3. Handle; 4. Detection probe; 5. Bracket; 6. Mounting box; 7. Turntable; 8. Pull rope; 9. Pawl; 10. Ratchet; 11. Gear; 12. Rack; 13. Drive slot; 14. Mounting slot; 15. Support leg; 16. Limit plate; 17. Movable rod; 19. Limit spring. Detailed Implementation

[0026] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0027] Please see Figures 1-6 The present invention provides a technical solution:

[0028] A partial discharge detection device for power equipment, comprising:

[0029] Mounting base 1, the mounting base 1 has a receiving cavity, a sliding seat 2 is slidably connected in the receiving cavity, a detection probe 4 is connected on the sliding seat 2, the sliding seat 2 slides out of the receiving cavity to perform long-distance discharge detection;

[0030] The bracket 5 is rotatably connected to the mounting base 1, and the mounting base 1 rotates to perform discharge detection in different directions.

[0031] The sliding seat 2 slides out of the receiving cavity, increasing the overall length of the device and enabling long-distance discharge detection. This avoids the inconvenience of operation for maintenance personnel in confined spaces, thus preventing safety accidents. The device can be placed horizontally to inspect horizontal electrical equipment or vertically to inspect vertical electrical equipment, depending on maintenance needs. The sliding seat 2 is then slid out to use the detection probe 4 at its end for detection. The bracket 5 supports the mounting base 1, avoiding fatigue caused by manual support for maintenance personnel. Furthermore, since the mounting base 1 and the bracket 5 are rotatably connected, the mounting base 1 can be rotated during detection, increasing the detection range.

[0032] In this embodiment, the sliding seat 2 is provided with a drive through groove 13, a rack 12 is connected to the inner wall of the drive through groove 13, a gear 11 is provided in the receiving cavity, and a turntable 7 is rotatably provided on the mounting seat 1. The gear 11 and the turntable 7 are fixedly connected, and the gear 11 and the rack 12 mesh.

[0033] Rotating the turntable 7 causes the gear 11 to rotate. Since the gear 11 and the rack 12 mesh, the sliding seat 2 is driven to slide out or slide into the receiving cavity of the mounting seat 1.

[0034] In this embodiment, a ratchet 10 is fixedly connected to the gear 11, and a pawl 9 is rotatably connected to the mounting base 1. The other end of the pawl 9 is engaged in the groove of the ratchet 10, and a spring is connected to the mounting base 1, with one end of the spring connected to the pawl 15.

[0035] When the device detects power equipment in the vertical direction, the pawl 9 engages with the slot of the ratchet 10 to lock the gear 11, thereby locking the detection length of the extended sliding seat 2. This prevents the sliding seat 2 from sliding downwards due to gravity when it extends vertically, causing the gear 11 to reverse and affecting the detection results.

[0036] In this embodiment, the mounting base 1 is further provided with a mounting box 6, and the pawl 9, ratchet 10, and spring are all housed within the mounting box 6. The mounting box 6 protects the pawl 9, ratchet 10, spring, and other components.

[0037] In this embodiment, a pull rope 8 is connected to the pawl 9, and a through hole is provided on the mounting box 6, through which one end of the pull rope 8 passes.

[0038] Pulling the rope 8 causes the pawl 9 to rotate away from the ratchet 10, releasing the positioning of the turntable 7 and thus reversing the turntable 9. The probing length of the sliding seat 2 can then be adjusted as needed.

[0039] In this embodiment, a limiting plate 16 is connected to the bracket 5, and a movable rod 17 is slidably connected to the mounting base 1. The side wall of the movable rod 17 is connected to a limiting spring 18 through a locking pin, and one end of the movable rod 17 is engaged with the limiting plate 8.

[0040] Pull the movable rod 17 to release the restriction of the movable rod 17 on the limiting plate 16. Then, the mounting base 1 can be rotated as needed to adjust the detection point. After the adjustment is completed, release the movable rod 17. Under the reset action of the limiting spring 18, the limiting plate 8 is engaged to achieve the positioning of the mounting base 1 after rotation.

[0041] In this embodiment, the sliding seat 2 is also provided with an installation groove 14, and a support leg 15 is provided in the installation groove 14. The support leg 15 is rotatably connected to the sliding seat 2.

[0042] The mounting groove 14 of the sliding seat 2 is provided with a support foot 15. When the sliding seat 2 is completely slid out, the support foot 15 rotates out of the mounting groove 14 under the action of gravity to provide auxiliary support for the sliding seat 2.

[0043] In this embodiment, a handle 3 is also connected to the mounting base 1.

[0044] When the sliding seat 2 has not slid out of the receiving cavity, the bracket 5 can be rotated to the side of the mounting seat 1 to store the entire device. Then, the handle 3 can be used to transport the device.

[0045] Working principle and usage process of this invention:

[0046] Pull the movable rod 17 to release the restriction of the movable rod 17 on the limiting plate 16, rotate the mounting base 1 so that the bracket 5 is in a vertical state. After adjustment, release the movable rod 17. Under the reset action of the limiting spring 18, the limiting plate 8 continues to be engaged, realizing the positioning of the mounting base 1 and the bracket 5 after rotation. Pull the pull rope 8 so that the pawl 9 rotates away from the ratchet 10, releasing the positioning of the turntable 7. Rotating the turntable 7 drives the gear 11 to rotate, driving the sliding seat 2 to slide out of the receiving cavity of the mounting base 1, so that the detection probe 4 can detect the power equipment at a distance in a limited space.

[0047] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A partial discharge detection device for power equipment, characterized in that, include: Mounting base (1), the mounting base (1) has a receiving cavity, a sliding seat (2) is slidably connected in the receiving cavity, a detection probe (4) is connected on the sliding seat (2), and the sliding seat (2) slides out of the receiving cavity to perform long-distance discharge detection; The bracket (5) is rotatably connected to the mounting base (1), and the mounting base (1) rotates to perform discharge detection in different directions.

2. The partial discharge detection device for power equipment according to claim 1, characterized in that: The sliding seat (2) is provided with a drive through groove (13), and a rack (12) is connected to the inner wall of the drive through groove (13). A gear (11) is provided in the receiving cavity. A turntable (7) is rotatably provided on the mounting seat (1). The gear (11) and the turntable (7) are fixedly connected, and the gear (11) and the rack (12) mesh.

3. The partial discharge detection device for power equipment according to claim 2, characterized in that: A ratchet (10) is fixedly connected to the gear (11), and a pawl (9) is rotatably connected to the mounting base (1). The other end of the pawl (9) is engaged in the groove of the ratchet (10), and a spring is connected to the mounting base (1), with one end of the spring connected to the pawl (15).

4. The partial discharge detection device for power equipment according to claim 3, characterized in that: The mounting base (1) is also provided with a mounting box (6), and the pawl (9), ratchet (10) and spring are all covered inside the mounting box (6).

5. The partial discharge detection device for power equipment according to claim 4, characterized in that: A pull rope (8) is connected to the pawl (9), and a through hole is provided on the mounting box (6), through which one end of the pull rope (8) passes.

6. The partial discharge detection device for power equipment according to claim 5, characterized in that: The bracket (5) is connected to a limiting plate (16), and the mounting base (1) is slidably connected to a movable rod (17). The side wall of the movable rod (17) is connected to a limiting spring (18) by a locking pin, and one end of the movable rod (17) is locked to the limiting plate (8).

7. The partial discharge detection device for power equipment according to claim 6, characterized in that: The sliding seat (2) is also provided with an installation groove (14), and a support foot (15) is provided in the installation groove (14). The support foot (15) is rotatably connected to the sliding seat (2).

8. The partial discharge detection device for power equipment according to claim 1, characterized in that: A handle (3) is also connected to the mounting base (1).

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