Explosion-proof dry-type transformer

Abstract

The invention discloses an explosion-proof dry-type transformer, which relates to the technical field of dry-type transformers, and comprises an explosion-proof shell, a spraying part for spraying a fire extinguishing material, a storage part for storing the fire extinguishing material, an explosion-proof detection assembly and a connecting part, the explosion-proof detection assembly comprises a supporting column fixedly connected with the inner side face of the explosion-proof shell, the end, away from the explosion-proof shell, of the supporting column is fixedly connected with a supporting ring, one end of the supporting ring is slidably connected with an explosion-proof detection disc, the end, close to the supporting ring, of the explosion-proof detection disc is fixedly connected with a connecting column, and the connecting column penetrates through an inner cavity of the supporting ring. A plurality of first elastic pieces are arranged in an inner cavity of the supporting ring, the two ends of each first elastic piece are fixedly connected with the supporting ring and the first connecting column correspondingly, and the end, away from the anti-explosion detection disc, of the connecting column is fixedly connected with a detection ball. When explosion is detected, a fire extinguishing material is sprayed to the transformer to extinguish flames generated by the transformer, and secondary explosion is prevented.

Description

Technical Field

[0001] The invention relates to the technical field of dry-type transformers, and in particular to an explosion-proof dry-type transformer. Background Art

[0002] Dry-type transformers are widely used in local lighting, high-rise buildings, airports, docks, CNC machinery and equipment and other places. Simply put, dry-type transformers refer to transformers whose cores and windings are not immersed in insulating oil. Dry-type transformers are mainly composed of cores made of silicon steel sheets and coils cast with epoxy resin. Insulating cylinders are placed between high and low voltage coils to increase electrical insulation, and the coils are supported and constrained by pads. The fasteners overlapping its components have anti-loosening properties.

[0003] Existing dry-type transformers usually work in a harsh environment when in use, such as a lot of dust and high temperature. If the insulating material inside the dry-type transformer catches fire or thermally decomposes, it will cause serious consequences such as explosion and fire. In real life, when a transformer explodes, the initial explosion is often small-scale, but if the open flame generated after the initial explosion is not handled in time, the dry-type transformer will burn or thermally decompose more insulating materials due to the open flame generated after the explosion, causing a more serious and larger-scale secondary explosion, causing huge losses to personnel and property.

[0004] Therefore, the present invention proposes an explosion-proof dry-type transformer to solve the above problems. Summary of the invention

[0005] The object of the present invention is to provide an explosion-proof dry-type transformer. By arranging an explosion-proof detection component, a connecting part, a storage part and a spraying part, when an explosion is detected, a fire extinguishing material is sprayed on the transformer to extinguish the flame generated by it and prevent a secondary explosion, so as to solve the technical problems raised in the above-mentioned background technology.

[0006] To achieve the above object, the present invention provides the following technical solution: an explosion-proof dry-type transformer, comprising an explosion-proof housing and a spraying portion for spraying fire extinguishing materials and a storage portion for storing fire extinguishing materials, and also comprising an explosion-proof detection component and a connecting portion;

[0007] The explosion-proof detection component includes a support column fixedly connected to the inner wall of the explosion-proof housing, an end of the support column away from the explosion-proof housing is fixedly connected to a support ring, an end of the support ring close to the support column is movably connected to an explosion-proof detection disk, an end of the explosion-proof detection disk close to the support ring is fixedly connected to a connecting column, an end of the connecting column that passes through the support ring is fixedly connected to a detection ball, a plurality of first elastic members are provided in the inner cavity of the support ring, and two ends of each of the first elastic members are respectively fixedly connected to the inner wall of the support ring and the outer wall of the connecting column;

[0008] The connecting part includes a chuck, and the side wall of the chuck is provided with two oppositely arranged first grooves, the interior of each of the first grooves is fixedly connected to a rotating shaft, the outer wall of each rotating shaft is rotatably connected to a first clamping jaw, and both sides of the end of each first clamping jaw away from the rotating shaft are rotatably connected to connecting rods, and the end of each connecting rod away from the first clamping jaw is hinged to the end of the support ring close to the connecting column.

[0009] Preferably, the connecting part also includes a push rod slidably connected in the explosion-proof shell, one end of the push rod is fixedly connected to a push plate, the end of the push plate close to the push rod is clamped with the two first clamping jaws, one end of the push rod extending out of the explosion-proof shell is fixedly connected to a push plate, a sixth elastic member is arranged between the push plate and the clamping plate, and the two ends of the sixth elastic member are respectively fixedly connected to the push plate and the clamping plate.

[0010] Preferably, the storage part includes a box body fixedly connected to the outer side of the explosion-proof shell, the interior of the box body is fixedly connected to a support plate, the interior of the support plate is provided with two placement grooves, the interior of each of the placement grooves is rotatably connected to a second clamping jaw, a second elastic member is arranged between the two second clamping jaws, the two ends of the second elastic member are respectively fixedly connected to one end of the support plate extending from the two second clamping jaws, the ends of the two second clamping jaws close to the second elastic member are in contact with the inner wall of the push plate, the interior of the box body is slidably connected to a pressure plate, one end of the pressure plate is fixedly connected to a first pressure plate, the outer wall of the first pressure plate is clamped with the inner walls of the two second clamping jaws, a third elastic member is arranged between the first pressure plate and the support plate, and the two ends of the third elastic member are respectively fixedly connected to the support plate and the first pressure plate.

[0011] Preferably, a plurality of gas storage barrels are fixedly connected to the outer bottom of the box body, and a second pressure plate is slidably connected to the inner wall of each gas storage barrel. A fourth elastic member is arranged between each second pressure plate and the inner bottom surface of the corresponding gas storage barrel, and both ends of each fourth elastic member are respectively fixedly connected to the bottom surface of the corresponding second pressure plate and the inner bottom surface of the corresponding gas storage barrel.

[0012] Preferably, a second groove is provided at the top of each gas storage barrel, a plurality of blocks are slidably connected to the inside of each second groove, a fifth elastic member is provided between each block and the second groove, and both ends of each fifth elastic member are respectively fixedly connected to one end of the corresponding block and the inner wall of the second groove.

[0013] Preferably, a plurality of second slide grooves are provided at the inner bottom of the box body, each of the second slide grooves corresponds to each gas storage barrel respectively, a top column is slidably connected to the interior of each second slide groove, each of the top columns is in contact with the top of the second pressure plate inside the corresponding gas storage barrel, and an air outlet is provided at the bottom of each gas storage barrel, and each of the air outlet is connected to the inner cavity of the box body between the support plate and the pressure plate through an air pipe.

[0014] Preferably, the spraying part comprises a plurality of spraying members fixedly connected to the inner wall of the explosion-proof housing, the outer wall of each of the spraying members is provided with a plurality of spray holes, and one end of each of the spraying members extending into the inner cavity of the box body is provided with a feed hole.

[0015] Preferably, each of the spraying member outer walls is provided with a first slide groove, each of the first slide grooves is slidably connected with a baffle, one end of each of the baffles away from the spraying member is commonly fixedly connected to a fixing frame, one end of the fixing frame away from the baffle is fixedly connected to the push rod, and the outer wall of each of the baffles is provided with avoidance holes corresponding to the multiple spray holes.

[0016] Preferably, a plurality of squeezing balls are fixedly connected to one end of the explosion-proof detection disk away from the support ring, and the outer wall of each squeezing ball is in contact with the outer surface of the chuck.

[0017] Preferably, a coil is fixedly connected inside the explosion-proof housing.

[0018] The beneficial effects of the present invention are:

[0019] 1. The present invention causes the explosion-proof detection plate to move due to the impact of the explosion, so that the clamping plate moves, and the first clamping claw releases the push plate. At this time, the sixth elastic member pushes the push plate, and the push plate moves, so that the push plate drives the push plate to squeeze the second clamping claw through the push rod, so that the second clamping claw releases the pressure plate. At this time, the second elastic member pushes the first pressure plate, so that the first pressure plate drives the pressure plate to slide in the storage box, thereby pressing the fire extinguishing material into the spraying member and spraying it out through the spray hole, so as to extinguish the open flame generated by the explosion and prevent secondary explosion.

[0020] 2. The present invention presses the top column by the pressure plate, so that the second pressure plate squeezes the block. When the block is squeezed to be tangent to the outer wall of the second pressure plate, the fourth elastic member contracts to make the second pressure plate squeeze the air in the air storage barrel. The air in the air storage barrel enters the box body, providing thrust to the pressure plate to ensure that even if the thrust provided by the relaxation of the third elastic member decreases, the pressure plate still has enough force to push the fire extinguishing material, thereby preventing the fire extinguishing material from being sprayed in place due to insufficient thrust.

[0021] 3. The present invention arranges a plurality of first elastic members between the explosion-proof detection disk and the support ring, so that when detecting the impact caused by the explosion, the explosion-proof detection disk can detect impacts generated in multiple directions. A plurality of squeezing balls are arranged on the explosion-proof detection disk, so that impacts generated in different directions during the explosion can trigger the fire extinguishing facilities to extinguish the open flame. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0023] Figure 2 It is a cross-sectional view of the overall structure of the present invention.

[0024] Figure 3 It is a stepped cross-sectional view of the overall structure of the present invention.

[0025] Figure 4 For the present invention Figure 2 A-axis partial enlarged view.

[0026] Figure 5 For the present invention Figure 3 A local enlarged view in the B direction.

[0027] Figure 6 It is a structural explosion diagram of the explosion-proof detection component and the connecting part of the present invention.

[0028] Figure 7 It is a schematic diagram of the internal structure of the storage part of the present invention.

[0029] Figure 8 It is a structural sectional view of the gas storage barrel of the present invention.

[0030] Fig. 9 It is a structural explosion diagram of the spraying part of the present invention.

[0031] The accompanying drawings are marked as follows: 1, explosion-proof housing; 11, coil; 2, spraying part; 21, spraying member; 211, spray hole; 212, feed hole; 213, first slide groove; 22, baffle; 3, explosion-proof detection assembly; 31, support column; 32, support ring; 33, explosion-proof detection disk; 331, connecting column; 332, detection ball; 333, squeezing ball; 34, first elastic member; 4, connecting part; 41, chuck; 411, first groove; 42, rotating shaft; 43, first clamping claw; 44, connecting rod; 45. Push rod; 46. Push plate; 47. Push plate; 48. Sixth elastic member; 49. Fixed frame; 5. Storage unit; 51. Box body; 511. Second slide groove; 512. Top column; 52. Support plate; 521. Placement groove; 53. Second clamping jaw; 531. Second elastic member; 54. Press plate; 541. First press plate; 55. Third elastic member; 56. Gas storage barrel; 561. Second groove; 562. Stop block; 563. Fifth elastic member; 57. Second press plate; 58. Fourth elastic member. DETAILED DESCRIPTION

[0032] 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 those skilled in the art without creative work are within the scope of protection of the present invention.

[0033] Example 1

[0034] In the actual production process, the open flame generated after the initial explosion is not handled in time, resulting in a phenomenon in which the dry-type transformer causes a more serious and larger-scale secondary explosion due to the open flame generated after the initial explosion. This embodiment is specially invented to solve the above problem.

[0035] See also Figure 1 , Figure 2 and Figure 3 As shown, an explosion-proof dry-type transformer according to an embodiment of the present invention comprises an explosion-proof casing 1, a spraying portion 2 for spraying fire extinguishing materials, and a storage portion 5 for storing fire extinguishing materials, and also comprises an explosion-proof detection component 3 and a connecting portion 4. A coil 11 is fixedly connected to the interior of the explosion-proof casing 1, and the fire extinguishing material here is a fire extinguishing material for electrical fires.

[0036] See also Figure 3 , Figure 4 and Figure 5As shown, the explosion-proof detection component 3 includes a support column 31 fixedly connected to the inner wall of the explosion-proof shell 1, the end of the support column 31 away from the explosion-proof shell 1 is fixedly connected to a support ring 32, the end of the support ring 32 close to the support column 31 is movably connected to an explosion-proof detection disk 33, the end of the explosion-proof detection disk 33 close to the support ring 32 is fixedly connected to a connecting column 331, the connecting column 331 passes through one end of the support ring 32 and is fixedly connected to a detection ball 332, the inner cavity of the support ring 32 is provided with a plurality of first elastic members 34, the two ends of each first elastic member 34 are respectively fixedly connected to the inner wall of the support ring 32 and the outer wall of the connecting column 331, and the first elastic member 34 is a spring.

[0037] See also Figure 5 and Figure 6 As shown, the connecting portion 4 includes a chuck 41, and the side wall of the chuck 41 is provided with two oppositely arranged first grooves 411, the interior of each first groove 411 is fixedly connected to a rotating shaft 42, the outer wall of each rotating shaft 42 is rotatably connected to a first clamping jaw 43, and both sides of an end of each first clamping jaw 43 away from the rotating shaft 42 are rotatably connected to connecting rods 44, and one end of each connecting rod 44 away from the first clamping jaw 43 is hinged to one end of the support ring 32 close to the connecting column 331.

[0038] See also Figure 3 , Figure 4 and Figure 5 As shown, the connecting part 4 also includes a push rod 45 slidably connected in the explosion-proof shell 1, one end of the push rod 45 is fixedly connected to a push plate 46, one end of the push plate 46 close to the push rod 45 is clamped with two first clamping claws 43, one end of the push rod 45 extending out of the explosion-proof shell 1 is fixedly connected to a push plate 47, a sixth elastic member 48 is arranged between the push plate 46 and the clamping plate 41, and the two ends of the sixth elastic member 48 are respectively fixedly connected to the push plate 46 and the clamping plate 41, wherein the sixth elastic member 48 is a spring.

[0039] See also Figure 7As shown, the storage portion 5 includes a box body 51 fixedly connected to the outer side of the explosion-proof shell 1, a support plate 52 is fixedly connected inside the box body 51, and two placement grooves 521 are provided inside the support plate 52, and a second clamping claw 53 is rotatably connected inside each placement groove 521, and a second elastic member 531 is arranged between the two second clamping claws 53, and the two ends of the second elastic member 531 are respectively fixedly connected to one end of the two second clamping claws 53 extending out of the support plate 52, and the ends of the two second clamping claws 53 close to the second elastic member 531 are in contact with the inner wall of the push plate 47, and a pressure plate 54 is slidably connected inside the box body 51, and one end of the pressure plate 54 is fixedly connected to the first pressure plate 541, and the outer wall of the first pressure plate 541 is clamped with the inner walls of the two second clamping claws 53, and a third elastic member 55 is arranged between the first pressure plate 541 and the support plate 52, and the two ends of the third elastic member 55 are respectively fixedly connected to the support plate 52 and the first pressure plate 541, wherein the third elastic member 55 is a spring.

[0040] See also Figure 2 , Figure 3 and Fig. 9 As shown, the spraying portion 2 includes a plurality of spraying members 21 fixedly connected to the inner wall of the explosion-proof housing 1, the outer wall of each spraying member 21 is provided with a plurality of spray holes 211, one end of each spraying member 21 extending into the inner cavity of the box body 51 is provided with a feed hole 212, the outer wall of each spraying member 21 is provided with a first slide groove 213, each first slide groove 213 is slidably connected with a baffle 22, one end of each baffle 22 away from the spraying member 21 is commonly fixedly connected with a fixing frame 49, one end of the fixing frame 49 away from the baffle 22 is fixedly connected to the push rod 45, and the outer wall of each baffle 22 is provided with avoidance holes corresponding to the plurality of spray holes 211.

[0041] See also Figure 2 , Figure 3 As shown, a coil 11 is fixedly connected inside the explosion-proof housing 1 .

[0042] When in use, when the transformer explodes, the detection ball 332 is displaced due to the impact force generated by the explosion, and the displacement of the detection ball 332 drives the explosion-proof detection disc 33 to push the clamping disc 41 to move, and the movement of the clamping disc 41 causes the connecting rod 44 to drive the first clamping jaw 43 to rotate around the rotating shaft 42 on the clamping disc 41, so that the first clamping jaw 43 releases the push plate 46, and when the first clamping jaw 43 releases the push plate 46, the sixth elastic member 48 relaxes, and the push plate 46 drives the push rod 45 to move into the box body 51 of the storage part 5 through the relaxation of the sixth elastic member 48, and the fixed The frame 49 drives the baffle plate 22 to move toward the box body 51, so that the spray hole 211 coincides with the corresponding avoidance hole, and at the same time, the push plate 47 squeezes the second clamping jaw 53, so that the second clamping jaw 53 rotates inside the support plate 52, thereby releasing the first pressure plate 541. When the second clamping jaw 53 releases the first pressure plate 541, the third elastic member 55 relaxes and pushes the first pressure plate 541 to drive the pressure plate 54 to move toward the feed hole 212, pressing the fire extinguishing material into the spraying member 21 and spraying it out through the spray hole 211, thereby extinguishing the open flame generated by the transformer explosion, and preventing a larger secondary explosion caused by the burning of the open flame after the transformer explosion.

[0043] Example 2

[0044] In actual use, it is found that as the third elastic member 55 relaxes, the thrust exerted on the pressure plate 54 gradually decreases, which may easily lead to the fire extinguishing material not being sprayed properly, the fire extinguishing material accumulating at the spray hole 211, and the fire extinguishing effect being poor. Further improvements are made on the basis of the above embodiments.

[0045] See also Figure 7 and Figure 8As shown, a plurality of gas storage barrels 56 are fixedly connected to the outer bottom of the box body 51, and a second pressure plate 57 is slidably connected to the inner wall of each gas storage barrel 56. A fourth elastic member 58 is arranged between each second pressure plate 57 and the inner bottom surface of the corresponding gas storage barrel 56, and the two ends of each fourth elastic member 58 are respectively fixedly connected to the bottom surface of the corresponding second pressure plate 57 and the inner bottom surface of the corresponding gas storage barrel 56. A second groove 561 is opened at the top of each gas storage barrel 56, and a plurality of stoppers 562 are slidably connected inside each second groove 561. A fifth elastic member 563 is arranged between each stopper 562 and the second groove 561, and the two ends of each fifth elastic member 563 are respectively One end of the corresponding stopper 562 is fixedly connected to the inner wall of the second groove 561, and a plurality of second slide grooves 511 are provided at the inner bottom of the box body 51, each of the second slide grooves 511 corresponds to each gas storage barrel 56 respectively, and a top column 512 is slidably connected to the inside of each second slide groove 511, and each top column 512 is in contact with the top of the second pressure plate 57 inside the corresponding gas storage barrel 56, and an air outlet is provided at the bottom of each gas storage barrel 56, and each air outlet is connected to the inner cavity of the box body 51 between the support plate 52 and the pressure plate 54 through an air pipe, wherein the air pipe is a prior art and is not described in detail here, and the fourth elastic member 58 and the fifth elastic member 563 are both springs.

[0046] On the basis of the above embodiment, when in use, the first pressure plate 541 drives the pressure plate 54 to slide inside the box body 51 through the expansion of the third elastic member 55. When the pressure plate 54 slides to above the top column 512 at the bottom of the box body 51, the pressure plate 54 presses the top column 512 downward, so that the end of the top column 512 presses the second pressure plate 57 downward, and the second pressure plate 57 is pressed, so that the second pressure plate 57 squeezes the stopper 562, so that the stopper 562 slides in the second groove 561. When the stopper 562 is pressed The second pressure plate 57 is squeezed until it is tangent to the outer wall of the second pressure plate 57. At this time, the pulling force of the fourth elastic member 58 on the second pressure plate 57 increases, and the second pressure plate 57 moves to the bottom of the gas storage barrel 56, while squeezing the internal gas of the gas storage barrel 56 to enter the box body 51, so that the internal pressure of the box body 51 increases, to ensure that as the pressure on the pressure plate 54 decreases with the relaxation of the third elastic member 55, the pressure is continuously provided to the pressure plate 54 through air pressure, to prevent the fire extinguishing material from accumulating and not spraying in place due to insufficient pressure on the pressure plate 54.

[0047] Example 3

[0048] In actual use, it was found that due to the inconsistent direction of the impact force generated when the transformer exploded, the explosion-proof detection disk 33 could not push the clamping disk 41 in time after the detection ball 332 detected the explosion, resulting in the problem that subsequent steps could not be carried out in time. Further improvements were made on the basis of the above embodiments.

[0049] See also Figure 5 and Figure 6 As shown, one end of the explosion-proof detection disc 33 away from the support ring 32 is fixedly connected with a plurality of squeezing balls 333 , and the outer wall of each squeezing ball 333 is in contact with the outer surface of the clamping disc 41 .

[0050] On the basis of the above embodiment, during use, after the detection ball 332 detects an explosion, the detection ball 332 will drive the explosion-proof detection disk 33 to move in the direction of the impact generated by the explosion. At the same time, the explosion-proof detection disk 33 will drive the squeezing ball 333 fixedly connected to the explosion-proof detection disk 33 to move in the same direction. Since the squeezing ball 333 is in contact with the outer wall of the chuck 41, the squeezing ball 333 will squeeze the outside of the chuck 41 after it moves, so as to ensure that even if it is subjected to impact forces in different directions, the chuck 41 can be pushed in time to drive the first clamping jaw 43 to release the push plate 46, and perform subsequent fire extinguishing steps.

[0051] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An explosion-proof dry-type transformer, characterized in that: The invention comprises an explosion-proof housing (1), a spraying portion (2) for spraying fire extinguishing materials, and a storage portion (5) for storing fire extinguishing materials, and further comprises: An explosion-proof detection component (3), the explosion-proof detection component (3) comprising a support column (31) fixedly connected to the inner wall of the explosion-proof housing (1), the end of the support column (31) away from the explosion-proof housing (1) being fixedly connected to a support ring (32), the end of the support ring (32) close to the support column (31) being movably connected to an explosion-proof detection disk (33), the end of the explosion-proof detection disk (33) close to the support ring (32) being fixedly connected to a connecting column (331), one end of the connecting column (331) passing through the support ring (32) being fixedly connected to a detection ball (332), the inner cavity of the support ring (32) being provided with a plurality of first elastic members (34), the two ends of each of the first elastic members (34) being respectively fixedly connected to the inner wall of the support ring (32) and the outer wall of the connecting column (331); A connecting portion (4), wherein the connecting portion (4) comprises a chuck (41), wherein the side wall of the chuck (41) is provided with two first grooves (411) which are arranged opposite to each other, wherein the interior of each of the first grooves (411) is fixedly connected to a rotating shaft (42), and the outer wall of each of the rotating shafts (42) is rotatably connected to a first clamping jaw (43), and both sides of one end of each of the first clamping jaws (43) away from the rotating shaft (42) are rotatably connected to connecting rods (44), and one end of each of the connecting rods (43) away from the first clamping jaw (43) is hinged to one end of the support ring (32) close to the connecting column (331).

2. The explosion-proof dry-type transformer according to claim 1, characterized in that: The connecting portion (4) further comprises a push rod (45) slidably connected in the explosion-proof housing (1), one end of the push rod (45) being fixedly connected to a push plate (46), one end of the push plate (46) close to the push rod (45) being clamped with the two first clamping claws (43), one end of the push rod (45) extending out of the explosion-proof housing (1) being fixedly connected to a push plate (47), a sixth elastic member (48) being arranged between the push plate (46) and the clamping plate (41), and two ends of the sixth elastic member (48) being fixedly connected to the push plate (46) and the clamping plate (41), respectively.

3. The explosion-proof dry-type transformer according to claim 1, characterized in that: The storage portion (5) comprises a box body (51) fixedly connected to the outer side of the explosion-proof housing (1); a support plate (52) is fixedly connected to the inside of the box body (51); two placement grooves (521) are provided inside the support plate (52); a second clamping jaw (53) is rotatably connected to the inside of each placement groove (521); a second elastic member (531) is provided between the two second clamping jaws (53); two ends of the second elastic member (531) are respectively fixedly connected to one end of the two second clamping jaws (53) extending out of the support plate (52); and the two One end of the second clamping jaw (53) close to the second elastic member (531) contacts the inner wall of the push plate (47), and a pressure plate (54) is slidably connected to the inside of the box body (51), and one end of the pressure plate (54) is fixedly connected to the first pressure plate (541), and the outer wall of the first pressure plate (541) is clamped with the inner walls of the two second clamping jaws (53), and a third elastic member (55) is arranged between the first pressure plate (541) and the support plate (52), and the two ends of the third elastic member (55) are fixedly connected to the support plate (52) and the first pressure plate (541), respectively.

4. The explosion-proof dry-type transformer according to claim 1, characterized in that: The outer bottom of the box body (51) is fixedly connected to a plurality of gas storage barrels (56), the inner wall of each gas storage barrel (56) is slidably connected to a second pressure plate (57), a fourth elastic member (58) is provided between each second pressure plate (57) and the inner bottom surface of the corresponding gas storage barrel (56), and the two ends of each fourth elastic member (58) are respectively fixedly connected to the bottom surface of the corresponding second pressure plate (57) and the inner bottom surface of the corresponding gas storage barrel (56).

5. The explosion-proof dry-type transformer according to claim 1, characterized in that: A second groove (561) is formed at the top of each gas storage barrel (56), a plurality of blocks (562) are slidably connected inside each second groove (561), a fifth elastic member (563) is provided between each block (562) and the second groove (561), and two ends of each fifth elastic member (563) are respectively fixedly connected to one end of the corresponding block (562) and the inner wall of the second groove (561).

6. The explosion-proof dry-type transformer according to claim 1, characterized in that: The inner bottom of the box body (51) is provided with a plurality of second slide grooves (511), each of which corresponds to each gas storage barrel (56), and each of which is slidably connected to a top column (512), and each of which is in contact with the top of a second pressure plate (57) inside the corresponding gas storage barrel (56). The bottom of each of which is provided with an air outlet, and each of which is communicated with an inner cavity of the box body (51) located between the support plate (52) and the pressure plate (54) through an air pipe.

7. The explosion-proof dry-type transformer according to claim 1, characterized in that: The spraying portion (2) comprises a plurality of spraying members (21) fixedly connected to the inner wall of the explosion-proof housing (1), the outer wall of each of the spraying members (21) being provided with a plurality of spray holes (211), and one end of each of the spraying members (21) extending into the inner cavity of the box body (51) being provided with a feed hole (212).

8. The explosion-proof dry-type transformer according to claim 1, characterized in that: The outer wall of each of the spraying members (21) is provided with a first sliding groove (213), and a baffle (22) is slidably connected in each of the first sliding grooves (213). One end of each of the baffles (22) away from the spraying member (21) is fixedly connected to a fixing frame (49), and one end of the fixing frame (49) away from the baffle (22) is fixedly connected to a push rod (45). The outer wall of each of the baffles (22) is provided with avoidance holes corresponding to the plurality of spray holes (211).

9. The explosion-proof dry-type transformer according to claim 1, characterized in that: A plurality of squeezing balls (333) are fixedly connected to one end of the explosion-proof detection disc (33) away from the support ring (32), and the outer wall of each squeezing ball (333) is in contact with the outer surface of the clamping disc (41).

10. The explosion-proof dry-type transformer according to claim 1, characterized in that: A coil (11) is fixedly connected inside the explosion-proof housing (1).

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