CN210837405U

CN210837405U - Transformer oiling device

Info

Publication number: CN210837405U
Application number: CN201921967549.2U
Authority: CN
Inventors: 陈代华
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-11-14
Filing date: 2019-11-14
Publication date: 2020-06-23
Anticipated expiration: 2029-11-14

Abstract

The utility model discloses a transformer filling device, including the main part case, the lower extreme fixed mounting of main part case has lower base, the upper end fixed mounting of base has two sets of handles, winding post and sleeve down, the winding post is located one side of main part case, the sleeve is located one side of winding post, and is two sets of the handle is located the opposite side of main part case, the lower extreme of base is provided with four group's walking wheels down. The utility model discloses a transformer filling device, sleeve and telescopic link through setting up, the fixed height of defeated oil pipe of change that can be nimble, the convenient transformer fuel feeding to the eminence, a fixed lasso and No. two fixed lassos through setting up, can conveniently fix and dismantle defeated oil pipe, dead lever through setting up, can make shower nozzle and transformer oil inlet fix, make the operator needn't hand-held carry out the operation of refueling, avoid appearing the condition that drops, and be convenient for dismantle, bring better use prospect.

Description

Transformer oiling device

Technical Field

The utility model relates to a transformer field, in particular to transformer filling device.

Background

The appearance of the transformer is a container with a plurality of vertical pipes connected outside, a petroleum product called transformer oil is filled in the container, at present, almost every household has a small transformer for reducing the voltage from 220V to 9V, 6V or 3V to be used as a power supply of small electric appliances, when the transformer works, a small part of electric energy is converted into heat energy, when the transformer is large, the amount of the heat energy released by the transformer is considerable, if the heat energy is not taken away, the temperature of the transformer is higher and higher, and finally the transformer is burnt out, in order to solve the problem, a coil and a silicon steel sheet for transformation are all soaked in the transformer oil, the oil is used for absorbing the heat energy released by the transformer oil, and an oil filling device of the transformer is needed;

present transformer filling device has certain drawback when using, at first, filling device is when refueling to the transformer of higher department, defeated oil pipe is not convenient for take the eminence to refuel the operation, and secondly, when refueling to the transformer of eminence, defeated oil pipe appears the condition that drops easily, and at last, when refueling the operation, need the handheld operation of refueling of people, can not fix the transformer tank port to the shower nozzle of refueling usefulness, for this reason, we provide a transformer filling device.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a main aim at provides a transformer filling device can effectively solve the problem in the background art.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a transformer refueling device comprises a main body box, wherein a lower base is fixedly mounted at the lower end of the main body box, two groups of handles, a winding column and a sleeve are fixedly mounted at the upper end of the lower base, the winding column is positioned at one side of the main body box, the sleeve is positioned at one side of the winding column, the two groups of handles are positioned at the other side of the main body box, four groups of travelling wheels are arranged at the lower end of the lower base, an oil tank and an oil pump are arranged inside the main body box, an oil inlet is formed in the upper end of the oil tank, an oil inlet pipe is arranged at one side of the oil pump and is communicated and connected with the oil tank, an oil discharge pipe is arranged at the upper end of the oil pump, one side of the oil discharge pipe penetrates through the main body box, an oil outlet is formed at one end of the oil discharge pipe, an oil delivery pipe is communicated, the telescopic handle is characterized in that a spring is fixedly mounted inside the fixed sleeve, a fixed column is fixedly mounted on one side of the spring, a pull rod is fixedly mounted on one side of the fixed column, a telescopic rod is arranged inside the sleeve, a fixed block is fixedly mounted at the upper end of the telescopic rod, a slide rod is fixedly mounted at the front end of the telescopic rod, and three groups of fixing grooves are formed in one side of the telescopic rod.

Preferably, telescopic opposite side fixed mounting has a fixed lasso No. one, one side fixed mounting of fixed block has No. two fixed lassos, a fixed orifices has all been seted up on a fixed lasso and No. two fixed lassos, the inside of a fixed orifices is provided with the internal thread, the internal thread of a fixed orifices is connected with a screw rod No. one, the front end fixed mounting of a screw rod has a rotatory piece No. one, the rear end fixed mounting of a screw rod has support the piece No. one.

Preferably, the one end of defeated oil pipe is provided with the shower nozzle, the outside fixed mounting of shower nozzle has fixed stopper, fixed stopper's upper end one side fixed mounting has No. three fixed lassos, No. three fixed lasso's front end is provided with No. two rotatory pieces, No. three fixed lasso have seted up No. two fixed orificess, the inside of No. two fixed orificess is provided with the internal thread, the internal thread of No. two fixed orificess is connected with No. two screw rods, the rear end fixed mounting of No. two screw rods has No. two to the piece.

Preferably, a sliding hole is formed in the fixed plug, and a fixed rod is movably connected between the third fixed ferrule and the inside of the sliding hole.

Preferably, the telescopic rod is movably connected with the sleeve, the slide rod is located inside the sliding groove and movably connected with the sliding groove, the connecting groove is formed in one side of the sleeve, the connecting hole is formed in one side of the fixing sleeve, the pull rod is located inside the connecting hole and movably connected with the connecting hole, the fixing column is located inside the fixing groove and the connecting groove, and the sleeve is fixedly connected with the telescopic rod through the fixing column.

Preferably, the second fixed ferrule is positioned at the upper end of the first fixed ferrule, oil conveying pipes are movably connected inside the first fixed ferrule and the second fixed ferrule, and the shapes and the sizes of the first fixed ferrule and the second fixed ferrule are the same.

Preferably, the third fixed ferrule and the first fixed ferrule have the same shape, and the size of the first fixed ferrule is larger than that of the third fixed ferrule.

Preferably, the sliding hole is located at the lower end of the third fixing ferrule, the upper end of the fixing rod is T-shaped, and the lower end of the fixing rod is L-shaped.

Compared with the prior art, the utility model discloses following beneficial effect has:

1. through the sleeve and the telescopic rod, the fixed height of the oil conveying pipe can be flexibly changed, oil supply to a transformer at a high position is convenient, the telescopic rod can stretch out and draw back in the sleeve, the slide rod is fixed at the front end of the telescopic rod and slides in the sliding groove, when the fixed groove and the connecting groove are overlapped, the fixed column stretches in the fixed sleeve under the elastic action of the spring, the fixed column enters the fixed groove, the telescopic rod and the sleeve are relatively fixed at the moment, the pull rod is stretched, the fixed column extrudes the spring, the fixed column is separated from the fixed groove, the height of the telescopic rod can be adjusted, the height of the telescopic rod is changed by changing the position of the fixed column relative to the fixed groove, the fixed height of the oil conveying pipe is flexibly changed, and oil filling operation is convenient;

2. the oil delivery pipe can be conveniently fixed and disassembled by the aid of the first fixing ring and the second fixing ring, the first fixing ring is fixed on one side of the sleeve, the second fixing ring is fixed on one side of the fixing block, and the first screw rod rotates in the first fixing hole by rotating the first rotating block, so that the first abutting block can be controlled to stretch out and draw back, and the first abutting block extrudes the oil delivery pipe, so that the oil delivery pipe is fixed or disassembled;

3. through the dead lever that sets up, can make shower nozzle and transformer oil inlet fix, make the operator needn't hand the operation of refueling, the condition of avoiding appearing droing, and be convenient for dismantle, the dead lever stretches out and draws back in the inside of No. three fixed lassos, the rotatory dead lever, make the L shape of dead lever inboard, insert the transformer tank with shower nozzle and dead lever, rotatory dead lever L shape is outside this moment, tensile dead lever, make the dead lever coincide with the inboard of transformer mouth, then rotatory No. two rotatory pieces, make No. three fixed lassos fix the dead lever, thereby the condition that the shower nozzle drops has been avoided, after refueling the completion, loosen No. three fixed lassos, the rotatory dead lever, make shower nozzle and fixed stopper separation, thereby realize fixing and dismantling nimble control shower nozzle and transformer tank port.

The parts of the device not involved are the same as or can be implemented using prior art.

Drawings

Fig. 1 is a schematic view of the overall structure of a transformer refueling device of the present invention;

fig. 2 is a sectional view of a main body box of the transformer refueling device of the present invention;

FIG. 3 is an enlarged view of the telescopic rod of the refueling device of the transformer of the present invention;

fig. 4 is an enlarged view of a pull rod and a fixed column of the transformer refueling device of the present invention;

fig. 5 is an enlarged view of a first rotary block and a first screw rod of the transformer refueling device of the present invention;

fig. 6 is the utility model relates to a enlarger of transformer filling device's fixed stopper.

In the figure: 1. a main body case; 2. a lower base; 3. a handle; 4. a traveling wheel; 5. an oil inlet; 6. an oil outlet; 7. an oil delivery pipe; 8. winding the column; 9. a sleeve; 10. a sliding groove; 11. a first fixed ferrule; 12. fixing the sleeve; 13. a pull rod; 14. a fixed block; 15. fixing a ferrule; 16. a spray head; 17. a fixed plug; 18. fixing the rod; 19. a first rotating block; 20. an oil pump; 21. an oil inlet pipe; 22. an oil discharge pipe; 23. an oil tank; 24. a telescopic rod; 25. fixing grooves; 26. a slide bar; 27. a spring; 28. fixing a column; 29. a first screw rod; 30. a first resisting block; 31. fixing a ferrule in a third mode; 32. and a second rotating block.

Detailed Description

In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand, the present invention is further described below with reference to the following embodiments.

Example 1

As shown in fig. 1-5, a transformer refueling device comprises a main body box 1, a lower base 2 is fixedly installed at the lower end of the main body box 1, two sets of handles 3, a winding column 8 and a sleeve 9 are fixedly installed at the upper end of the lower base 2, the winding column 8 is located at one side of the main body box 1, the sleeve 9 is located at one side of the winding column 8, the two sets of handles 3 are located at the other side of the main body box 1, four sets of traveling wheels 4 are arranged at the lower end of the lower base 2, an oil tank 23 and an oil pump 20 are arranged inside the main body box 1, an oil inlet 5 is arranged at the upper end of the oil tank 23, an oil inlet pipe 21 is arranged at one side of the oil pump 20, the oil inlet pipe 21 is communicated and connected with the oil tank 23, an oil discharge pipe 22 is arranged at the upper end of the oil pump 20, one side of the oil discharge pipe 22 penetrates through the, one side fixed mounting of sleeve 9 has fixed sleeve 12, and the inside fixed mounting of fixed sleeve 12 has spring 27, and one side fixed mounting of spring 27 has fixed column 28, and one side fixed mounting of fixed column 28 has pull rod 13, and the inside of sleeve 9 is provided with telescopic link 24, and the upper end fixed mounting of telescopic link 24 has fixed block 14, and the front end fixed mounting of telescopic link 24 has slide bar 26, and three groups of fixed slots 25 have been seted up to one side of telescopic link 24.

Telescopic link 24 and sleeve 9 swing joint, slide bar 26 is located the inside of sliding tray 10, and slide bar 26 and sliding tray 10 swing joint, the spread groove has been seted up to one side of sleeve 9, the connecting hole has been seted up to one side of fixed sleeve 12, and pull rod 13 is located the inside of connecting hole, pull rod 13 and connecting hole swing joint, fixed column 28 is located the inside of fixed slot 25 and spread groove, and sleeve 9 passes through fixed column 28 fixed connection with telescopic link 24, the fixed slot 25 of setting is three groups, can carry out the regulation of cubic height to telescopic link 24, in order to satisfy and carry out the operation of refueling to the transformer of co-altitude not.

By adopting the technical scheme: through the sleeve 9 and the telescopic rod 24, the fixed height of the oil delivery pipe 7 can be flexibly changed, oil supply to a transformer at a high position is convenient, the telescopic rod 24 can stretch in the sleeve 9, the sliding rod 26 is fixed at the front end of the telescopic rod 24, the sliding rod 26 slides in the sliding groove 10, when the fixed groove 25 is overlapped with the connecting groove, the fixed column 28 extends in the fixed sleeve 12 under the action of the elastic force of the spring 27, the fixed column 28 enters the fixed groove 25, the telescopic rod 24 is relatively fixed with the sleeve 9 at the moment, the pull rod 13 is stretched, the fixed column 28 extrudes the spring 27, the fixed column 28 is separated from the fixed groove 25, the height of the telescopic rod 24 can be adjusted, the height of the telescopic rod 24 is changed by changing the position of the fixed column 28 relative to the fixed groove 25, and the fixed height of the oil delivery pipe 7 can be flexibly changed, the oiling operation is convenient.

Example 2

As shown in fig. 1-5, a transformer refueling device comprises a main body box 1, a lower base 2 is fixedly installed at the lower end of the main body box 1, two sets of handles 3, a winding column 8 and a sleeve 9 are fixedly installed at the upper end of the lower base 2, the winding column 8 is located at one side of the main body box 1, the sleeve 9 is located at one side of the winding column 8, the two sets of handles 3 are located at the other side of the main body box 1, four sets of traveling wheels 4 are arranged at the lower end of the lower base 2, an oil tank 23 and an oil pump 20 are arranged inside the main body box 1, an oil inlet 5 is arranged at the upper end of the oil tank 23, an oil inlet pipe 21 is arranged at one side of the oil pump 20, the oil inlet pipe 21 is communicated and connected with the oil tank 23, an oil discharge pipe 22 is arranged at the upper end of the oil pump 20, one side of the oil discharge pipe 22 penetrates through the main body, one side fixed mounting of fixed block 14 has No. two fixed lassos 15, has all seted up a fixed orifices on No. one fixed lasso 11 and No. two fixed lassos 15, and the inside of a fixed orifices is provided with the internal thread, and the internal thread of a fixed orifices is connected with screw rod 29 No. one, and the front end fixed mounting of screw rod 29 has rotatory piece 19 No. one, and the rear end fixed mounting of screw rod 29 has support piece 30 No. one.

No. two fixed lassos 15 are located the upper end of fixed lasso 11, and the equal swing joint in inside of fixed lasso 11 and No. two fixed lasso 15 has defeated oil pipe 7, and the shape and the size of a fixed lasso 11 and No. two fixed lasso 15 are all the same, earlier with No. two fixed lasso 15 to defeated oil pipe 7's upper end, after adjusting high, reuse fixed lasso 11 fixed the lower extreme of defeated oil pipe 7 again to can carry out comprehensive fixed to defeated oil pipe 7.

By adopting the technical scheme: through fixed lasso 11 and No. two fixed lassos 15 that set up, can conveniently fix and dismantle defeated oil pipe 7, fixed lasso 11 is fixed in one side of sleeve 9, No. two fixed lassos 15 are fixed in one side of fixed block 14, through rotatory piece 19 No. one, make a screw rod 29 rotatory in a fixed orifices, thereby can control the flexible of piece 30 that supports No. one, support piece 30 and extrude defeated oil pipe 7, thereby make defeated oil pipe 7 fix or dismantle.

Example 3

As shown in fig. 1-6, a transformer refueling device comprises a main body box 1, a lower base 2 is fixedly installed at the lower end of the main body box 1, two sets of handles 3, a winding column 8 and a sleeve 9 are fixedly installed at the upper end of the lower base 2, the winding column 8 is located at one side of the main body box 1, the sleeve 9 is located at one side of the winding column 8, the two sets of handles 3 are located at the other side of the main body box 1, four sets of traveling wheels 4 are arranged at the lower end of the lower base 2, an oil tank 23 and an oil pump 20 are arranged inside the main body box 1, an oil inlet 5 is arranged at the upper end of the oil tank 23, an oil inlet pipe 21 is arranged at one side of the oil pump 20, the oil inlet pipe 21 is communicated and connected with the oil tank 23, an oil discharge pipe 22 is arranged at the upper end of the oil pump 20, one side of the oil discharge pipe 22 penetrates through, the outside fixed mounting of shower nozzle 16 has fixed stopper 17, fixed stopper 17's upper end one side fixed mounting has No. three fixed lasso 31, No. three fixed lasso 31's front end is provided with No. two rotatory pieces 32, No. two fixed orificess have been seted up on No. three fixed lasso 31, the inside of No. two fixed orificess is provided with the internal thread, the inside threaded connection of No. two fixed orificess has No. two screw rods, the rear end fixed mounting of No. two screw rods supports the piece No. two, the sliding hole has been seted up on the fixed stopper 17, No. three fixed lasso 31 has dead lever 18 with the inside swing joint of sliding hole.

The shape of No. three fixed lasso 31 is the same with the shape of No. one fixed lasso 11, and the size of No. one fixed lasso 11 is greater than No. three fixed lasso 31, and the sliding hole is located the lower extreme of No. three fixed lasso 31, and the shape of dead lever 18 upper end is the T font, and the shape of dead lever 18 lower extreme is the L shape, and the upper end of dead lever 18 sets up to the T font, conveniently rotates it, and the lower extreme sets up to the L shape and conveniently contacts fixedly with the inner wall of transformer tank.

By adopting the technical scheme: the spray head 16 can be fixed with the oil inlet of the transformer by the fixing rod 18, so that an operator does not need to carry out oiling operation by hand, the falling-off condition is avoided, and is easy to be disassembled, the fixing rod 18 is extended and contracted in the third fixing ferrule 31, the fixing rod 18 is rotated to make the L shape of the fixing rod 18 face the inner side, the spray head 16 and the fixing rod 18 are inserted into the transformer oil tank, at the moment, the fixing rod 18 is rotated to face the outer side, the fixing rod 18 is stretched to make the fixing rod 18 coincide with the inner side of the transformer mouth, then, the second rotating block 32 is rotated, so that the third fixing collar 31 fixes the fixing rod 18, therefore, the condition that the spray head 16 falls off is avoided, after oiling is finished, the third fixing ferrule 31 is loosened, the fixing rod 18 is rotated, the spray head 16 is separated from the fixing plug 17, and therefore fixing and dismounting of the spray head 16 and the transformer oil tank opening are flexibly controlled.

It should be noted that the utility model relates to a transformer oiling device, first, move the device below the transformer that needs to refuel through handle 3 and walking wheel 4, lower base 2 plays the fixed effect of support to the device, be provided with oil tank 23 in the main part case 1, can bear a large amount of oil and refuel the transformer, can refuel operation to oil tank 23 from oil inlet 5, oil pump 20 pumps oil tank 23 through oil inlet pipe 21, discharge oil from discharge pipe 22, defeated oil pipe 7 is connected with discharge pipe 22 through oil-out 6, and defeated oil pipe 7 can twine on winding post 8, when needing to refuel higher transformer, fix defeated oil pipe 7 with No. two fixed lasso 15, telescopic link 24 can stretch out and draw back in the inside of sleeve 9, slide bar 26 is fixed at the front end of telescopic link 24, slide bar 26 slides in the inside of sliding tray 10, when the fixed groove 25 is overlapped with the connecting groove, the fixed column 28 is extended in the fixed sleeve 12 under the action of the elastic force of the spring 27, so that the fixed column 28 enters the fixed groove 25, the telescopic rod 24 and the sleeve 9 are relatively fixed, after the height is adjusted, the first fixed ferrule 11 is used for fixing the oil delivery pipe 7, the pull rod 13 is stretched, the fixed column 28 extrudes the spring 27, so that the fixed column 28 is separated from the fixed groove 25, the height of the telescopic rod 24 can be adjusted, the height of the telescopic rod 24 is changed by changing the position of the fixed column 28 relative to the fixed groove 25, the fixed height of the oil delivery pipe 7 is flexibly changed, the first fixed ferrule 11 is fixed on one side of the sleeve 9, the second fixed ferrule 15 is fixed on one side of the fixed block 14, and the first screw 29 rotates in the first fixed hole by rotating the first rotating block 19, thereby controlling the extension of the first abutting block 30, extruding the oil delivery pipe 7 by the first abutting block 30, fixing or disassembling the oil delivery pipe 7, facilitating the oiling operation, extending and retracting the fixing rod 18 in the third fixing ferrule 31, rotating the fixing rod 18 to make the L shape of the fixing rod 18 face the inner side, inserting the spray head 16 and the fixing rod 18 into the transformer oil tank, rotating the fixing rod 18 to make the L shape of the fixing rod 18 face the outer side, stretching the fixing rod 18 to make the fixing rod 18 coincide with the inner side of the transformer port, then rotating the second rotating block 32 to make the third fixing ferrule 31 fix the fixing rod 18, thereby avoiding the condition that the spray head 16 falls off, after the oiling is completed, loosening the third fixing ferrule 31, rotating the fixing rod 18 to separate the spray head 16 from the fixing plug 17, thereby realizing the flexible control of the fixing and disassembling of the spray head 16 and the transformer port, the use is convenient for people and is practical.

The basic principles and the main features of the invention and the advantages of the invention have been shown and described above. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a transformer oiling device, includes main part case (1), the lower extreme fixed mounting of main part case (1) has lower base (2), the upper end fixed mounting of lower base (2) has two sets of handle (3), winding post (8) and sleeve (9), winding post (8) are located one side of main part case (1), sleeve (9) are located one side of winding post (8), and are two sets of handle (3) are located the opposite side of main part case (1), the lower extreme of lower base (2) is provided with four groups of walking wheels (4), main part case (1) inside is provided with oil tank (23) and oil pump (20), the upper end of oil tank (23) is provided with oil inlet (5), one side of oil pump (20) is provided with into oil pipe (21), it communicates with each other with oil pipe (21) and is connected with oil tank (23), the upper end of oil pump (20) is provided with arranges oil pipe (22), one side of oil extraction pipe (22) runs through in main part case (1), the one end of oil extraction pipe (22) is provided with oil-out (6), one side of oil-out (6) communicates with each other and is connected with defeated oil pipe (7), its characterized in that: sliding tray (10) have been seted up to the front end of sleeve (9), one side fixed mounting of sleeve (9) has fixed sleeve (12), the inside fixed mounting of fixed sleeve (12) has spring (27), one side fixed mounting of spring (27) has fixed column (28), one side fixed mounting of fixed column (28) has pull rod (13), the inside of sleeve (9) is provided with telescopic link (24), the upper end fixed mounting of telescopic link (24) has fixed block (14), the front end fixed mounting of telescopic link (24) has slide bar (26), three fixed slots of group (25) have been seted up to one side of telescopic link (24).

2. The transformer refueling device as recited in claim 1, wherein: the fixed ring (11) is fixedly mounted on the other side of the sleeve (9), the fixed ring (15) is fixedly mounted on one side of the fixed block (14), a fixed hole is formed in each of the fixed ring (11) and the fixed ring (15), an internal thread is arranged inside the fixed hole, a screw rod (29) is connected to the internal thread of the fixed hole, a rotating block (19) is fixedly mounted at the front end of the screw rod (29), and a supporting block (30) is fixedly mounted at the rear end of the screw rod (29).

3. The transformer refueling device as recited in claim 1, wherein: the one end of defeated oil pipe (7) is provided with shower nozzle (16), the outside fixed mounting of shower nozzle (16) has fixed stopper (17), the upper end one side fixed mounting of fixed stopper (17) has No. three fixed lasso (31), the front end of No. three fixed lasso (31) is provided with No. two rotatory pieces (32), No. two fixed orificess have been seted up on No. three fixed lasso (31), the inside of No. two fixed orificess is provided with the internal thread, the inside threaded connection of No. two fixed orificess has No. two screw rods, and the rear end fixed mounting of No. two screw rods has No. two to the piece.

4. The transformer refueling device as recited in claim 1, wherein: a sliding hole is formed in the fixed plug (17), and a fixed rod (18) is movably connected between the third fixed ferrule (31) and the inside of the sliding hole.

5. The transformer refueling device as recited in claim 1, wherein: the telescopic rod (24) is movably connected with the sleeve (9), the sliding rod (26) is located inside the sliding groove (10), the sliding rod (26) is movably connected with the sliding groove (10), one side of the sleeve (9) is provided with a connecting groove, one side of the fixed sleeve (12) is provided with a connecting hole, the pull rod (13) is located inside the connecting hole, the pull rod (13) is movably connected with the connecting hole, the fixed column (28) is located inside the fixed groove (25) and the connecting groove, and the sleeve (9) is fixedly connected with the telescopic rod (24) through the fixed column (28).

6. The transformer refueling device as recited in claim 2, wherein: no. two fixed lasso (15) are located the upper end of a fixed lasso (11), the equal swing joint in inside of a fixed lasso (11) and No. two fixed lasso (15) has defeated oil pipe (7), the shape and the size homogeneous phase of a fixed lasso (11) and No. two fixed lasso (15) are the same.

7. A transformer refuelling device according to claim 2 or 3, characterized in that: the third fixed ferrule (31) and the first fixed ferrule (11) are the same in shape, and the size of the first fixed ferrule (11) is larger than that of the third fixed ferrule (31).

8. The transformer refueling device as recited in claim 4, wherein: the sliding hole is positioned at the lower end of the third fixing ferrule (31), the upper end of the fixing rod (18) is T-shaped, and the lower end of the fixing rod (18) is L-shaped.