CN221993516U - A partial discharge detector for transformers in hydropower stations - Google Patents

Abstract

The utility model relates to the technical field of partial discharge detectors, in particular to a partial discharge detector for a transformer of a hydropower station, which comprises a box body, wherein the top end of the box body is movably provided with a box cover through a hinge, the inside of the box body is provided with a partial discharge detector body, the inside of the bottom end of the box body is provided with a retraction mechanism, and the retraction mechanism comprises a pushing frame, a pushing block and a pressing rod; a second handle is movably mounted outside one side of the box body, and a plurality of push rods are arranged side by side on one side, close to the box body, of the second handle. According to the utility model, the pushing frame, the pushing blocks, the compression bar, the first springs and the moving wheels are matched for use, the second springs can pull the barrier bars, the barrier bars are pulled and then control the pushing frame to synchronously move, the pushing blocks at four corners of the pushing frame are recovered, the compression bar is lifted when the pushing blocks are retracted, the compression bar drives the moving wheels to extend out of the telescopic grooves, so that the box body can be conveniently placed on the ground, and meanwhile, the barrier bars are conveniently dragged on a flat ground, so that the purpose of convenient use is achieved.

Description

Partial discharge detector for transformer of hydropower station

Technical Field

The utility model relates to the technical field of partial discharge detectors, in particular to a hydropower station transformer partial discharge detector.

Background

The partial discharge detector of the hydropower station transformer is special equipment for monitoring whether partial discharge phenomenon occurs in an insulation system of the transformer, the partial discharge is abnormal discharge in the insulation system, damage and degradation of the insulation system can be caused, the partial discharge detector of the hydropower station transformer is very important for preventing faults of the insulation system and improving reliability of equipment, and can help operation and maintenance personnel to find potential problems in time, and appropriate maintenance measures are taken, so that the service life of the transformer is prolonged.

The utility model discloses a partial discharge detector with an authorized bulletin number of CN207866960U, which comprises a shell, a front panel and a rear panel, wherein a coupling capacitor, a control unit, an input unit, a preamplifier, a filter amplifier, a main amplifier, a data acquisition card and a microprocessor are arranged in the shell, and the beneficial effects of the utility model are that: by combining the graphic and digital display, various rules of the discharge information are visually displayed, and the discharge information display device has the functions of data acquisition, storage, display and printing.

The device has simple structure and reasonable design, can meet the requirements of users, and has great popularization value;

However, the above patent suffers from the following disadvantages:

The partial discharge detector is combined with graphic and digital display to visually display various rules of discharge information, but is inconvenient to carry in daily use, so that the partial discharge detector of the hydropower station transformer needs to be designed.

Disclosure of utility model

The utility model aims to provide a partial discharge detector for a transformer of a hydropower station, which aims to solve the problems in the background technology.

In order to achieve the above purpose, the present utility model provides the following technical solutions:

A partial discharge detector for a transformer of a hydropower station comprises

The box body is characterized in that the top end of the box body is movably provided with a box cover through a hinge, the inside of the box body is provided with a partial discharge instrument body, the bottom end of the box body is internally provided with a retraction mechanism, and the retraction mechanism comprises a pushing frame, a pushing block and a pressing rod;

one side outside movable mounting of box has the second handle, one side that the second handle is close to the box is provided with a plurality of push rod side by side, and is a plurality of the fixed pushing frame of the other end of push rod, the flexible groove has all been seted up to the bottom four corners of box, four the equal movable mounting in inside of flexible groove has the removal wheel.

Preferably, the pushing blocks are fixedly installed at the top ends of two sides of the pushing frame, the compression bars are fixedly installed at the bottom ends of the four moving wheels, first springs are arranged at the inner bottom ends of the four telescopic grooves, the top ends of the four first springs are fixedly connected to the outer parts of the bottom ends of the moving wheels, and the first springs are movably connected to the outer parts of the compression bars;

Preferably, a barrier strip is fixedly arranged between one side of the pushing frame far away from the push rod, a plurality of second springs are arranged side by side on one side of the barrier strip far away from the push rod, and the other ends of the second springs are fixedly connected with the inside of the box body;

Preferably, a first handle is movably arranged outside one side of the box cover, which is close to the second handle, a plurality of guide rods are fixedly connected to one side of the first handle, which is close to the box cover, and the guide rods are movably sleeved with the inside of the box cover;

Preferably, a toggle button is movably arranged in one side of the box cover, a locking head is arranged on one side of the toggle button, one end of the toggle button, which is far away from the locking head, is movably connected with the box cover through a third spring, and a locking block is fixedly connected to one side of the box body, which is close to the locking head;

Preferably, a plurality of inserting rods are arranged at the top end of the first handle, and a plurality of slots are formed in one side, close to the inserting rods, of the second handle.

Compared with the prior art, the utility model has the beneficial effects that:

1. This power station transformer partial discharge detector uses through pushing away between frame, ejector pad, depression bar, first spring and the removal wheel cooperation, and the blend stop can be pulled to the second spring, and the blend stop receives to pull back control and promotes frame synchronous movement, will promote the ejector pad in frame four corners and retrieve, and jack-up depression bar when the ejector pad is retracted, and the depression bar drives and removes the wheel and stretch out from the inside of expansion tank, can conveniently place the box from the ground like this, also conveniently drags the line on smooth ground simultaneously to reach convenient to use's purpose.

2. This power station transformer partial discharge detector uses through the cooperation between second handle, first handle, inserted bar and the slot, when using the back of accomplishing, with box and case lid closure, when box and case lid closure, a plurality of inserted bar on first handle top can insert in a plurality of slot of second handle bottom, then keep second handle and first handle closely laminating, then grip second handle and first handle portable pulling equipment simultaneously, can keep focus stable like this, and is comparatively laborsaving when daily carrying.

Drawings

FIG. 1 is a schematic diagram of the overall front view structure of the present utility model;

FIG. 2 is a schematic view of a retracting mechanism according to the present utility model;

FIG. 3 is a schematic view of a partial discharge apparatus according to the present utility model;

FIG. 4 is a schematic illustration of a bayonet structure of the present utility model;

fig. 5 is a schematic view of a locking head according to the present utility model.

In the figure: 1. a case; 2. a case cover; 3. a partial discharge meter body; 4. a retracting mechanism; 401. a pushing frame; 402. a pushing block; 403. a compression bar; 5. a second handle; 6. a push rod; 7. a telescopic slot; 8. a moving wheel; 9. a first spring; 10. a barrier strip; 11. a second spring; 12. a first handle; 13. a guide rod; 14. a toggle button; 15. a locking head; 16. a third spring; 17. a locking block; 18. a rod; 19. a slot.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

As shown in fig. 1-5, the present utility model provides a technical solution:

The utility model provides a power station transformer partial discharge detector, includes box 1, and box 1's top is through hinge movable mounting case lid 2, and box 1's inside is provided with partial discharge appearance body 3, and box 1's bottom is inside to be provided with receive and release mechanism 4, and receive and release mechanism 4 is including pushing frame 401, ejector pad 402 and depression bar 403; a second handle 5 is movably arranged outside one side of the box body 1, a plurality of push rods 6 are arranged side by side on one side of the second handle 5 close to the box body 1, a pushing frame 401 is fixed at the other ends of the push rods 6, telescopic grooves 7 are formed in four corners of the bottom end of the box body 1, and moving wheels 8 are movably arranged inside the four telescopic grooves 7; the pushing blocks 402 are fixedly arranged at the top ends of two sides of the pushing frame 401, the compression bars 403 are fixedly arranged at the bottom ends of the four moving wheels 8, the first springs 9 are arranged at the inner bottom ends of the four telescopic slots 7, the top ends of the four first springs 9 are fixedly connected to the outer parts of the bottom ends of the moving wheels 8, and the first springs 9 are movably connected to the outer parts of the compression bars 403; a barrier strip 10 is fixedly arranged between one side of the pushing frame 401 far away from the push rod 6, a plurality of second springs 11 are arranged on one side of the barrier strip 10 far away from the push rod 6 side by side, and the other ends of the second springs 11 are fixedly connected with the inside of the box body 1;

In this embodiment, when the first handle 12 and the second handle 5 are loosened during the use and the box 1 is placed on the ground, the barrier strip 10 can be pulled by the second spring 11, the barrier strip 10 is controlled to push the frame 401 to move synchronously after being pulled, the push blocks 402 at four corners of the push frame 401 are recovered, the push blocks 402 push up the pressure increasing rod 403 during the backspacing, the pressure bar 403 drives the movable wheel 8 to extend out of the telescopic groove 7, so that the box 1 can be conveniently placed off the ground, and meanwhile, the use is convenient, and the use is convenient.

As shown in fig. 1 and 4, a first handle 12 is movably mounted outside one side of the box cover 2, which is close to the second handle 5, a plurality of guide rods 13 are fixedly connected to one side of the first handle 12, which is close to the box cover 2, the guide rods 13 are movably sleeved with the inside of the box cover 2, a plurality of inserting rods 18 are arranged at the top end of the first handle 12, and a plurality of inserting slots 19 are formed in one side of the second handle 5, which is close to the inserting rods 18;

in this embodiment, when the case 1 and the case cover 2 are closed after the use is completed, and the case 1 and the case cover 2 are closed, the plurality of inserting rods 18 at the top end of the first handle 12 are inserted into the plurality of inserting grooves 19 at the bottom end of the second handle 5, then the second handle 5 and the first handle 12 are tightly attached, and then the second handle 5 and the first handle 12 are simultaneously held to carry and pull the device, so that the gravity center can be kept stable, and the portable device is more labor-saving in daily use.

As shown in fig. 5, a toggle button 14 is movably installed in one side of the case cover 2, a locking head 15 is arranged on one side of the toggle button 14, one end, away from the locking head 15, of the toggle button 14 is movably connected with the case cover 2 through a third spring 16, and a locking block 17 is fixedly connected to one side, close to the locking head 15, of the case body 1;

In this embodiment, when the partial discharge apparatus body 3 is used, the toggle button 14 is toggled to one side of the third spring 16 and compresses the third spring 16, so that the locking head 15 can be retracted from the locking block 17, then the partial discharge apparatus body 3 is turned over, and the third spring 16 can rebound to control the locking head 15 to be inserted into the locking block 17 for locking during closing.

Working principle: when the portable multifunctional trolley is used in daily life, the first handle 12 and the second handle 5 are held by hands, when the first handle 12 and the second handle 5 are held by hands, the four movable wheels 8 are retracted in the telescopic grooves 7, when the first handle 12 and the second handle 5 are released to place the trolley 1 on the ground, the second springs 11 can pull the barrier strips 10, the barrier strips 10 are pulled to control the pushing frames 401 to synchronously move, pushing blocks 402 at four corners of the pushing frames 401 are retracted, the pushing blocks 402 push the boosting rods 403 when retracted, and the pressing rods 403 drive the movable wheels 8 to extend out of the telescopic grooves 7, so that the trolley 1 can be conveniently placed off the ground, and meanwhile, the trolley is conveniently pulled on the flat ground; when the use is finished, the box body 1 and the box cover 2 are closed, when the box body 1 and the box cover 2 are closed, the inserting rods 18 at the top end of the first handle 12 are inserted into the inserting grooves 19 at the bottom end of the second handle 5, then the second handle 5 and the first handle 12 are tightly attached, and then the second handle 5 and the first handle 12 are simultaneously held to carry the pulling device, so that the gravity center can be kept stable, and the labor is saved during daily carrying.

The foregoing has shown and described the basic principles, principal features and advantages of the utility model. It will be understood by those skilled in the art that the present utility model is not limited to the above-described embodiments, and that the above-described embodiments and descriptions are only preferred embodiments of the present utility model, and are not intended to limit the utility model, and that various changes and modifications may be made therein without departing from the spirit and scope of the utility model as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims (6)

1. A hydropower station transformer partial discharge detector is characterized in that: comprising

The automatic discharging device comprises a box body (1), wherein a box cover (2) is movably arranged at the top end of the box body (1) through a hinge, a partial discharge instrument body (3) is arranged in the box body (1), a retracting mechanism (4) is arranged in the bottom end of the box body (1), and the retracting mechanism (4) comprises a pushing frame (401), a pushing block (402) and a pressing rod (403);

One side outside movable mounting of box (1) has second handle (5), one side that second handle (5) are close to box (1) is provided with a plurality of push rod (6) side by side, and is a plurality of fixed promotion frame (401) of the other end of push rod (6), flexible groove (7) have all been seted up in the bottom four corners of box (1), four the inside of flexible groove (7) is all movable mounting has removal wheel (8).

2. The hydropower station transformer partial discharge detector according to claim 1, wherein: the pushing frame is characterized in that pushing blocks (402) are fixedly installed on the top ends of two sides of the pushing frame (401), compression bars (403) are fixedly installed on the bottom ends of the moving wheels (8), first springs (9) are arranged at the bottom ends of the inner parts of the telescopic grooves (7), the top ends of the first springs (9) are fixedly connected to the outer parts of the bottom ends of the moving wheels (8), and the first springs (9) are movably connected to the outer parts of the compression bars (403).

3. A hydropower station transformer partial discharge detector according to claim 2, wherein: the pushing frame (401) is fixedly arranged between one sides, far away from the push rod (6), of the pushing frame, a barrier strip (10) is arranged on one sides, far away from the push rod (6), of the barrier strip (10), a plurality of second springs (11) are arranged side by side, and the other ends of the second springs (11) are fixedly connected with the inside of the box body (1).

4. The hydropower station transformer partial discharge detector according to claim 1, wherein: the novel box cover is characterized in that a first handle (12) is movably mounted outside one side, close to the second handle (5), of the box cover (2), a plurality of guide rods (13) are fixedly connected to one side, close to the box cover (2), of the first handle (12), and the guide rods (13) are movably sleeved with the inside of the box cover (2).

5. The hydropower station transformer partial discharge detector according to claim 1, wherein: one side of case lid (2) internally movable installs toggle button (14), one side of toggle button (14) is provided with locking head (15), the one end that toggle button (14) kept away from locking head (15) is through third spring (16) and case lid (2) swing joint, one side that box (1) is close to locking head (15) fixedly connected with locking piece (17).

6. The hydropower station transformer partial discharge detector as claimed in claim 4, wherein: the top of first handle (12) is provided with a plurality of inserted link (18), a plurality of slot (19) have been seted up to one side that second handle (5) are close to inserted link (18).