A mechanism for measuring the oil temperature of the top layer of a transformer

Abstract

The invention discloses a mechanism for measuring the oil temperature of the top layer of a transformer, and relates to the technical field of measuring devices. The mechanism comprises a main board, wherein an empty slot is provided inside the main board, and a gear is rotatably installed on the inner wall of the empty slot, and one end of the gear extends to the outside of the main board and is installed with a sub-board, and a receiving slot is provided at the lower end of the sub-board, and a temperature sensor is arranged in the receiving slot. The sub-board of the device can rotate around a connection, and when the device is extended into the interior of the transformer, the sub-board can be rotated so that the temperature sensor at the end of the sub-board is close to the coil, and then when the extension entrance is opened, the distance between the extension entrance and the coil is the same as the length of the sub-board, and then there is no need to open the extension entrance around the coil, so as to avoid the coil being damaged by a hole turning machine when the extension entrance is opened, thereby protecting the safety of the transformer, and utilizing a specific component to allow the temperature sensor to extend from the receiving slot during the rotation of the sub-board, so that the various components of the device can be linked, without consuming electricity or energy, and saving resources.

Description

Technical Field

[0001] The invention relates to the technical field of measuring mechanisms, in particular to a mechanism for measuring the top oil temperature of a transformer. Background Art

[0002] An oil-immersed transformer is a voltage conversion device that uses oil cooling technology to reduce the transformer temperature to the lowest level. An oil-immersed transformer is a transformer that immerses the transformer coil and magnetic core in special transformer oil. This has the advantage of both dissipating heat and isolating the coil from the air to prevent moisture in the air from corroding the transformer's magnetic core. It also has a certain arc extinguishing effect.

[0003] However, the temperature difference between the oil temperature at the top of the transformer and the room temperature cannot exceed 55℃, that is, the temperature rise cannot exceed 55℃. If it exceeds, the voltage may be too low, the current may be too large, there is an internal fault, etc. Continuing to run will seriously damage the insulation, shorten the service life or burn the transformer. For this reason, it is necessary to add an oil temperature measuring mechanism inside the oil-immersed transformer. If the internal oil temperature exceeds 55 degrees, it is necessary to add external heat dissipation to the transformer to avoid damage to the transformer. However, the main body of the traditional oil temperature measuring mechanism is vertically downward. Due to the high temperature around the coil, it is more accurate to measure the oil temperature around the coil. However, in order to measure the temperature around the coil, the measuring mechanism will be extended to the entrance around the coil. If the staff operates improperly, the puncher may be excessively extended into the transformer, resulting in damage to the coil inside the transformer, which will cause the entire device transformer to be damaged and scrapped, resulting in huge economic losses. Therefore, technical personnel in this field have proposed a mechanism for measuring the top oil temperature of the transformer. Summary of the invention

[0004] In view of the deficiencies in the prior art, the present invention provides a mechanism for measuring the oil temperature of the top layer of a transformer, which solves the problems in the above background.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions: a mechanism for measuring the oil temperature of the top layer of a transformer, comprising a main board, an empty slot is provided inside the main board, a gear is rotatably installed on the inner wall of the empty slot, one end of the gear extends to the outside of the main board and is installed with a sub-plate, a storage slot is provided at the lower end of the sub-plate, a temperature sensor is arranged in the storage slot, a first slide bar is installed on one side of the gear inside the main board, two first slide blocks are slidably installed on the first slide bar, a connecting plate is installed on the side of each first slide block on one side of the gear, and a connecting plate which is connected to the gear is installed at the other end of the two connecting plates The rack is meshed with wheels, the upper end of the rack extends to the outside of the mainboard, and two positioning holes are correspondingly provided at the end of the rack extending to the outside of the mainboard. A first mounting seat is installed on the upper end of the mainboard, a first cavity is provided in the first mounting seat, a first limiting plate is provided in the first cavity, a clamp extending to the positioning hole below is installed at the center of one side of the first limiting plate, a first spring is provided on the other side of the first limiting plate, a first strip groove communicating with the first cavity is provided on the upper surface of the first mounting seat, and a shift block passing through the first strip groove and extending to the outside of the first mounting seat is installed on the surface of the first limiting plate.

[0006] As a further technical solution of the present invention, a sub-cavity is opened inside the sub-plate near the upper end, an arc-shaped opening connected to the sub-cavity is opened on the surface of the sub-plate, a fixing part is installed on the side of the main plate just above the sub-plate, and a baffle is installed on the lower surface of the fixing part and extends through the arc-shaped opening into the sub-cavity.

[0007] As a further technical solution of the present invention, a rectangular cavity is opened inside the sub-plate between the sub-cavity and the storage groove, a second mounting seat is slidably installed on the inner wall of the rectangular cavity just above the storage groove, a second cavity is opened in the second mounting seat, a second limiting plate is arranged in the second cavity, a second spring is arranged in the second cavity above the second cavity, a second strip groove connected to the second cavity is opened on the side of the second mounting seat, an extension plate extending through the second strip groove into the rectangular cavity is installed on the side of the extension plate of the second strip groove, and a stopper is installed on the inner wall of the rectangular cavity below the second strip groove.

[0008] As a further technical solution of the present invention, a third cavity is opened inside the sub-plate on one side of the receiving groove, a third limiting plate is arranged in the third cavity, a third spring is arranged inside the third cavity on one side of the third limiting plate, a sealing plate extending into the receiving groove is installed at the center of the other side surface of the third cavity, a pulley is rotatably installed on the inner wall of the rectangular cavity on one side of the second mounting seat, a steel wire rope is installed at the center of the side surface of the third limiting plate, the other end of the steel wire rope extends into the rectangular cavity, bypasses the pulley and is fixedly connected to the extension plate, and the elastic force of the second spring is greater than that of the third spring.

[0009] As a further technical solution of the present invention, a lower plate extending into the rectangular cavity is installed at the upper end of the temperature sensor, a second sliding rod is installed on the inner bottom surface of the rectangular cavity on one side of the lower plate, a limiting member is installed on the end of the second sliding rod, a second sliding block whose side is fixedly connected to the lower plate is slidably installed on the second sliding bar, and a fourth spring is sleeved on the second sliding bar on one side of the second sliding block.

[0010] As a further technical solution of the present invention, a port seat is installed on the side of the mainboard near the upper end, and two rectangular parts are installed correspondingly on the side of the gear. A through hole is opened on the upper surface of each of the rectangular parts, and a bolt is arranged in each of the through holes. A display screen is installed on the upper surface of the port seat.

[0011] The specific steps include:

[0012] S1. A circular hole matching the port seat is opened on the upper surface of the oil-immersed transformer according to the length of the auxiliary board, so that the distance between the circular hole and the internal coil is suitable for the length of the auxiliary board. Then, the auxiliary board and the main board are inserted into the transformer through the hole until the port seat is inserted into the circular hole. Then, the port seat is fixed to the transformer by bolts, and then the entire device is fixed to the transformer;

[0013] S2, the shifting block drives the first limit plate to move, and the moving first limit plate compresses the first spring and drives the clamp to move out of the lower positioning hole, so as to release the fixation of the rack, and then the rack is moved down, and the moving rack drives the gear to rotate, and the rotating gear drives the sub-plate to rotate until the upper positioning hole is aligned with the clamp, at which time the gear drives the sub-plate to rotate ninety degrees, so that the temperature sensor on the sub-plate is close to the inner coil of the transformer, and then the shifting block is released, the first spring rebounds and drives the first limit plate to restore its position, and then drives the clamp to snap into the aligned upper positioning hole to re-fix the rack;

[0014] S3. During the rotation of the sub-plate, the rotating sub-plate drives all the components thereon to rotate. When the moving upper plate encounters the fixed baffle plate, the upper plate is squeezed and moves into the rectangular cavity. The moving upper plate drives the second mounting seat to move. Since the elastic force of the second spring is greater than that of the third spring, the moving second mounting seat will pull the third limit plate to move through the extension plate and the wire rope. The moving third limit plate compresses the third spring and drives the sealing plate to move into the third cavity until the extension plate touches the baffle block. At this time, the sealing plate completely enters the third cavity, so that the storage slot is opened.

[0015] S4, the extension plate does not move during the movement of the second mounting seat due to the limit of the stopper, and then the immobile extension plate compresses the second spring through the second strip groove, and the second mounting seat that continues to move pushes the end of the temperature sensor out of the receiving groove through the lower plate, and at the same time, the moving lower plate drives the second slider to slide on the second slide rod, and the sliding second slider compresses the fourth spring;

[0016] S5. The extended temperature sensor can detect the oil temperature around the coil, and then the detected temperature is displayed on the display screen, achieving the purpose of measuring the top oil temperature of the transformer.

[0017] Beneficial Effects

[0018] The present invention provides a mechanism for measuring the oil temperature of the top layer of a transformer. Compared with the prior art, it has the following beneficial effects:

[0019] 1. A mechanism for measuring the oil temperature of the top layer of a transformer. The sub-plate of the device can rotate around the connection. When the device is inserted into the transformer, the sub-plate can be rotated so that the temperature sensor at the end of the sub-plate is close to the coil, and then when the extension entrance is opened, the distance between the extension entrance and the coil is the same as the length of the sub-plate, so there is no need to open the extension entrance around the coil, so as to avoid the coil being damaged by the hole turning machine when the extension entrance is opened, thereby protecting the safety of the transformer. At the same time, the temperature sensor is placed in a storage slot, and the storage slot is closed with a sealing plate. When not in use, the temperature sensor is protected to avoid collision and damage to the temperature sensor during the transportation of the device. At the same time, a specific component is used to extend the temperature sensor from the storage slot during the rotation of the sub-plate, so that the various components of the device can be linked, and at the same time, the extension action does not consume electricity or energy, and only relies on the manpower of pressing the rack, thereby achieving the purpose of saving resources. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of a mechanism for measuring the oil temperature of the top layer of a transformer;

[0021] Figure 2 is a side view of a mechanism for measuring the oil temperature at the top layer of a transformer;

[0022] Figure 3 The working principle diagram of a mechanism for measuring the oil temperature at the top layer of a transformer;

[0023] Figure 4 A cross-sectional view of a sub-plate of a mechanism for measuring the top oil temperature of a transformer;

[0024] Figure 5 A cross-sectional view of a main board of a mechanism for measuring the top oil temperature of a transformer;

[0025] Figure 6 for Figure 4 Enlarged view of part A;

[0026] Figure 7 for Figure 4 Enlarged view of part B;

[0027] Figure 8 A cross-sectional view of a sub-plate showing the working state of a mechanism for measuring the top oil temperature of a transformer.

[0028] In the figure: 1, main board; 2, slot; 3, gear; 4, sub-board; 5, first slide bar; 6, first slider; 7, connecting plate; 8, rack; 9, storage slot; 10, temperature sensor; 11, first mounting seat; 12, first cavity; 13, first limit plate; 14, positioning hole; 15, clamp; 16, first spring; 17, first strip groove; 18, shift block; 19, sub-cavity; 20, arc opening; 21, fixing member; 22, baffle; 23, rectangular cavity; 24, second mounting seat Mounting seat; 25, second cavity; 26, second limit plate; 27, second spring; 28, second strip groove; 29, extension plate; 30, stopper; 31, upper plate; 32, pulley; 33, third cavity; 34, third limit plate; 35, third spring; 36, sealing plate; 37, wire rope; 38, lower plate; 39, port seat; 40, rectangular member; 41, bolt; 42, display screen; 43, second slide bar; 44, limit member; 45, second slide block; 46, fourth spring. DETAILED DESCRIPTION

[0029] 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.

[0030] See also Figure 1-8The present invention provides a technical scheme for a mechanism for measuring the oil temperature of the top layer of a transformer: a mechanism for measuring the oil temperature of the top layer of a transformer, comprising a main board 1, an empty slot 2 is provided inside the main board 1, a gear 3 is rotatably installed on the inner wall of the empty slot 2, one end of the gear 3 extends to the outside of the main board 1 and is installed with a sub-plate 4, a storage slot 9 is provided at the lower end of the sub-plate 4, a temperature sensor 10 is arranged in the storage slot 9, a first slide bar 5 is installed on one side of the gear 3 inside the main board 1, two first sliders 6 are slidably installed on the first slide bar 5, a connecting plate 7 is installed on the side of each first slider 6 on one side of the gear 3, a rack 8 meshing with the gear 3 is commonly installed at the other ends of the two connecting plates 7, the upper end of the rack 8 extends to the outside of the main board 1, and two positioning holes 14 are correspondingly provided at the end of the rack 8 extending to the outside of the main board 1, a first mounting seat 11 is installed on the upper end of the main board 1, a first cavity 12 is provided in the first mounting seat 11, a first limit plate 13 is arranged in the first cavity 12, and a center of one side of the first limit plate 13 is installed with a hole extending to the lower The clamping piece 15 is arranged in the square positioning hole 14, the other side of the first limiting plate 13 is provided with a first spring 16, the upper surface of the first mounting seat 11 is provided with a first strip groove 17 connected with the first cavity 12, and the surface of the first limiting plate 13 is provided with a shifting block 18 extending to the outside of the first mounting seat 11 through the first strip groove 17. When in use, the shifting block 18 drives the first limiting plate 13 to move, and the moving first limiting plate 13 compresses the first spring 16 and drives the clamping piece 15 to move out of the positioning hole 14 below. The fixation of the rack 8 can be released, and then the rack 8 is moved down. The moving rack 8 drives the gear 3 to rotate, and the rotating gear 3 drives the sub-plate 4 to rotate until the upper positioning hole 14 is aligned with the clamp 15. At this time, the gear 3 drives the sub-plate 4 to rotate ninety degrees, so that the temperature sensor 10 on the sub-plate 4 is close to the inner coil of the transformer. Then the shift block 18 is released, and the first spring 16 rebounds to drive the first limit plate 13 to restore its position, thereby driving the clamp 15 to snap into the aligned upper positioning hole 14 to re-fix the rack 8.

[0031] See also Figure 4-8A sub-cavity 19 is provided near the upper end of the sub-plate 4, and an arc-shaped opening 20 communicating with the sub-cavity 19 is provided on the surface of the sub-plate 4. A fixing member 21 is installed on the side of the main plate 1 just above the sub-plate 4, and a baffle 22 is installed on the lower surface of the fixing member 21, which passes through the arc-shaped opening 20 and extends into the sub-cavity 19. A rectangular cavity 23 is provided between the sub-cavity 19 and the receiving groove 9 in the sub-plate 4, and a second mounting seat 24 is slidably mounted on the inner wall of the rectangular cavity 23 just above the receiving groove 9, and a second cavity 25 is provided in the second mounting seat 24, and a second cavity 25 is provided in the second cavity 25. A second limiting plate 26 is provided in the second cavity 25 and a second spring 27 is provided above the second cavity 25. A second strip groove 28 communicating with the second cavity 25 is provided on the side of the second mounting seat 24. An extension plate 29 of the second strip groove 28 is provided on the side of the extension plate 29 extending through the second strip groove 28 to the rectangular cavity 23. A stopper 30 is provided on the inner wall of the rectangular cavity 23 below the second strip groove 28. A third cavity 33 is provided on one side of the receiving groove 9 inside the auxiliary plate 4. A third limiting plate 34 is provided in the third cavity 33. The interior of the third cavity 33 is provided with a third limiting plate 34. A third spring 35 is provided on one side of the third limiting plate 34, a sealing plate 36 extending into the receiving groove 9 is installed at the center of the other side of the third cavity 33, a pulley 32 is rotatably installed on the inner wall of the rectangular cavity 23 on one side of the second mounting seat 24, a steel wire rope 37 is installed at the center of the side of the third limiting plate 34, the other end of the steel wire rope 37 extends into the rectangular cavity 23, bypasses the pulley 32 and is fixedly connected to the extension plate 29, the elastic force of the second spring 27 is greater than that of the third spring 35, and during the rotation of the sub-plate 4, the rotating sub-plate 4 drives all the components thereon to rotate, and when the moving upper plate When 31 encounters the fixed baffle plate 22, the upper plate 31 is squeezed and moves into the rectangular cavity 23. The moving upper plate 31 drives the second mounting seat 24 to move. Since the elastic force of the second spring 27 is greater than that of the third spring 35, the moving second mounting seat 24 will pull the third limiting plate 34 to move through the extension plate 29 and the wire rope 37. The moving third limiting plate 34 compresses the third spring 35 and drives the sealing plate 36 to move into the third cavity 33 until the extension plate 29 touches the stopper 30. At this time, the sealing plate 36 completely enters the third cavity 33, so that the storage slot 9 is opened.

[0032] See also Figure 8A lower plate 38 extending into the rectangular cavity 23 is installed at the upper end of the temperature sensor 10, and a second slide bar 43 is installed on the inner bottom surface of the rectangular cavity 23 on one side of the lower plate 38, and a limiting member 44 is installed on the end of the second slide bar 43. A second slider 45 whose side is fixedly connected to the lower plate 38 is slidably installed on the second slide bar 43, and a fourth spring 46 is sleeved on the second slide bar 43 on one side of the second slider 45. When in use, the second mounting seat 24 that continues to move pushes the end of the temperature sensor 10 out of the storage groove 9 through the lower plate 38, and at the same time, the moving lower plate 38 drives the second slider 45 to slide on the second slide bar 43, and the sliding second slider 45 compresses the fourth spring 46.

[0033] See also Figure 1-3 A port seat 39 is installed on the side of the main board 1 near the upper end, and two rectangular parts 40 are installed on the side of the gear 3. A through hole is opened on the upper surface of each rectangular part 40, and a bolt 41 is arranged in each through hole. A display screen 42 is installed on the upper surface of the port seat 39. When in use, the port seat 39 is fixed to the transformer by the bolts 41, and then the whole device is fixed to the transformer.

[0034] The specific steps include:

[0035] S1. A circular hole matching the port seat 39 is opened on the upper surface of the oil-immersed transformer according to the length of the auxiliary board 4, so that the distance between the circular hole and the internal coil is suitable for the length of the auxiliary board 4. Then, the auxiliary board 4 and the main board 1 are inserted into the transformer through the hole until the port seat 39 is inserted into the circular hole. Then, the port seat 39 is fixed to the transformer by bolts 41, and then the entire device is fixed to the transformer;

[0036] S2, the shifting block 18 is moved to drive the first limit plate 13 to move, and the moved first limit plate 13 compresses the first spring 16 and drives the clamp 15 to move out of the lower positioning hole 14, so that the fixation of the rack 8 can be released, and then the rack 8 is moved downward, and the moving rack 8 drives the gear 3 to rotate, and the rotating gear 3 drives the sub-plate 4 to rotate until the upper positioning hole 14 is aligned with the clamp 15. At this time, the gear 3 drives the sub-plate 4 to rotate ninety degrees, so that the temperature sensor 10 on the sub-plate 4 is close to the inner coil of the transformer, and then the shifting block 18 is released, and the first spring 16 rebounds to drive the first limit plate 13 to restore its position, and then drives the clamp 15 to snap into the aligned upper positioning hole 14 to re-fix the rack 8;

[0037] S3. During the rotation of the sub-plate 4, the rotating sub-plate 4 drives all the components thereon to rotate. When the moving upper plate 31 encounters the fixed baffle 22, the upper plate 31 is squeezed and moves into the rectangular cavity 23. The moving upper plate 31 drives the second mounting seat 24 to move. Since the elastic force of the second spring 27 is greater than that of the third spring 35, the moving second mounting seat 24 will pull the third limiting plate 34 to move through the extension plate 29 and the wire rope 37. The moving third limiting plate 34 compresses the third spring 35 and drives the sealing plate 36 to move into the third cavity 33 until the extension plate 29 touches the stopper 30. At this time, the sealing plate 36 completely enters the third cavity 33, so that the storage slot 9 is opened.

[0038] S4. The extension plate 29 does not move during the movement of the second mounting seat 24 due to the limit of the stopper 30, and the immobile extension plate 29 compresses the second spring 27 through the second strip groove 28. The second mounting seat 24 that continues to move pushes the end of the temperature sensor 10 out of the receiving groove 9 through the lower plate 38. At the same time, the moving lower plate 38 drives the second slider 45 to slide on the second slide rod 43, and the sliding second slider 45 compresses the fourth spring 46.

[0039] S5. The extended temperature sensor 10 can detect the oil temperature around the coil, and then the detected temperature is displayed on the display screen 42, thereby achieving the purpose of measuring the top oil temperature of the transformer.

Claims

1. A mechanism for measuring the top oil temperature of a transformer, comprising a main board (1), characterized in that: The main board (1) has an empty slot (2) formed inside, a gear (3) is rotatably mounted on the inner wall of the empty slot (2), one end of the gear (3) extends to the outside of the main board (1) and is mounted with a sub-board (4), a storage slot (9) is formed at the lower end of the sub-board (4), a temperature sensor (10) is arranged in the storage slot (9), a first slide bar (5) is mounted on one side of the gear (3) inside the main board (1), two first sliders (6) are slidably mounted on the first slide bar (5), each of the first sliders (6) A connecting plate (7) is installed on one side of the gear (3), and a rack (8) meshing with the gear (3) is installed on the other ends of the two connecting plates (7). The upper end of the rack (8) extends to the outside of the main board (1), and two positioning holes (14) are correspondingly provided at the end of the rack (8) extending to the outside of the main board (1). A first mounting seat (11) is installed on the upper end of the main board (1), and a first cavity (12) is provided in the first mounting seat (11). A first limiting plate (13) is provided in the first cavity (12). A clamping member (15) extending into the positioning hole (14) below is installed at the center of one side of the first limiting plate (13), and a first spring (16) is provided on the other side of the first limiting plate (13). A first strip groove (17) communicating with the first cavity (12) is provided on the upper surface of the first mounting seat (11), and a spring (16) passing through the first strip groove (17) is installed on the surface of the first limiting plate (13). A shifting block (18) extending to the outside of the first mounting seat (11); A secondary cavity (19) is provided inside the secondary plate (4) near the upper end, an arc-shaped opening (20) communicating with the secondary cavity (19) is provided on the surface of the secondary plate (4), a fixing member (21) is installed on the side surface of the main plate (1) just above the secondary plate (4), and a baffle (22) is installed on the lower surface of the fixing member (21) and extends through the arc-shaped opening (20) into the secondary cavity (19); A rectangular cavity (23) is provided inside the auxiliary plate (4) between the auxiliary cavity (19) and the receiving groove (9); a second mounting seat (24) is slidably mounted on the inner wall of the rectangular cavity (23) just above the receiving groove (9); a second cavity (25) is provided inside the second mounting seat (24); a second limit plate (26) is arranged inside the second cavity (25); a second spring (27) is arranged above the second cavity (25); a second strip groove (28) communicating with the second cavity (25) is provided on the side of the second mounting seat (24); an extension plate (29) of the second strip groove (28) is mounted on the side of the extension plate (29) thereof and extending through the second strip groove (28) into the rectangular cavity (23); a stopper (30) is mounted on the inner wall of the rectangular cavity (23) below the second strip groove (28); A third cavity (33) is provided inside the auxiliary plate (4) at one side of the receiving groove (9), a third limiting plate (34) is provided inside the third cavity (33), a third spring (35) is provided inside the third cavity (33) at one side of the third limiting plate (34), a sealing plate (36) extending into the receiving groove (9) is installed at the center of the other side of the third cavity (33), a pulley (32) is rotatably installed on the inner wall of the rectangular cavity (23) at one side of the second mounting seat (24), a steel wire rope (37) is installed at the center of the side of the third limiting plate (34), the other end of the steel wire rope (37) extends into the rectangular cavity (23), bypasses the pulley (32), and is fixedly connected to the extension plate (29), and the elastic force of the second spring (27) is greater than that of the third spring (35); The upper end of the temperature sensor (10) is mounted with a lower plate (38) extending into the rectangular cavity (23); a second slide bar (43) is mounted on the inner bottom surface of the rectangular cavity (23) on one side of the lower plate (38); a limit member (44) is mounted on the end of the second slide bar (43); a second slide bar (45) is slidably mounted on the second slide bar (43) and the side of the second slide bar (45) is fixedly connected to the lower plate (38); a fourth spring (46) is sleeved on the second slide bar (43) on one side of the second slide bar (45); A port seat (39) is installed on the side of the main board (1) near the upper end, and two rectangular members (40) are installed on the side of the gear (3) accordingly. A through hole is opened on the upper surface of each rectangular member (40), and a bolt (41) is arranged in each through hole. A display screen (42) is installed on the upper surface of the port seat (39).

2. A mechanism for measuring the top oil temperature of a transformer according to claim 1, characterized in that: The specific steps include: S1. A circular hole matching the port seat (39) is opened on the upper surface of the oil-immersed transformer according to the length of the auxiliary plate (4), so that the distance between the circular hole and the internal coil is matched with the length of the auxiliary plate (4), and then the auxiliary plate (4) and the main plate (1) are inserted into the transformer through the hole until the port seat (39) is inserted into the circular hole, and then the port seat (39) is fixed to the transformer by bolts (41), and then the entire device is fixed to the transformer; S2, the shifting block (18) is moved to drive the first limit plate (13) to move, the moving first limit plate (13) compresses the first spring (16) and drives the clamp (15) to move out of the lower positioning hole (14), thereby releasing the fixation of the rack (8), and then the rack (8) is moved downward, the moving rack (8) drives the gear (3) to rotate, and the rotating gear (3) drives the sub-plate (4) to rotate until the upper positioning hole (14) is aligned with the clamp (15), at which time the gear (3) drives the sub-plate (4) to rotate ninety degrees, so that the temperature sensor (10) on the sub-plate (4) is close to the inner coil of the transformer, and then the shifting block (18) is released, the first spring (16) rebounds and drives the first limit plate (13) to restore its position, and then drives the clamp (15) to snap into the aligned upper positioning hole (14) to re-fix the rack (8); S3. During the rotation of the auxiliary plate (4), the rotating auxiliary plate (4) drives all components thereon to rotate. When the moving upper plate (31) encounters the fixed baffle (22), the upper plate (31) is squeezed and moves into the rectangular cavity (23). The moving upper plate (31) drives the second mounting seat (24) to move. Since the elastic force of the second spring (27) is greater than that of the third spring (35), the moving second mounting seat (24) pulls the third limiting plate (34) to move through the extension plate (29) and the wire rope (37). The moving third limiting plate (34) compresses the third spring (35) and drives the sealing plate (36) to move into the third cavity (33) until the extension plate (29) touches the baffle (30). At this time, the sealing plate (36) completely enters the third cavity (33), so that the storage slot (9) is opened; S4. The extension plate (29) does not move during the movement of the second mounting seat (24) due to the limit of the stopper (30), and the stationary extension plate (29) compresses the second spring (27) through the second strip groove (28). The second mounting seat (24) that continues to move pushes the end of the temperature sensor (10) out of the receiving groove (9) through the lower plate (38). At the same time, the moving lower plate (38) drives the second slider (45) to slide on the second slide rod (43), and the sliding second slider (45) compresses the fourth spring (46). S5. The extended temperature sensor (10) can detect the oil temperature around the coil, and then the detected temperature is displayed on the display screen (42), thereby achieving the purpose of measuring the top oil temperature of the transformer.

Images