CN114758857A

CN114758857A - Transformer with outer protection

Info

Publication number: CN114758857A
Application number: CN202210480305.1A
Authority: CN
Inventors: 吴承彪
Original assignee: Jiangxi Aohengda Technology Co ltd
Current assignee: Jiangxi Aohengda Technology Co ltd
Priority date: 2022-05-05
Filing date: 2022-05-05
Publication date: 2022-07-15

Abstract

The invention relates to a transformer, in particular to a transformer with an outer layer protection function. The transformer with the outer protection layer can cool the port and can automatically cut off power when the port is overheated. A transformer with outer layer protection comprises a transformer body, a protection cylinder, a sleeve, a wiring terminal and the like; a protective cylinder is installed at the left front position of the top of the transformer body, a sleeve is connected to the left front position of the top of the transformer body, the sleeve is located in the protective cylinder, and a wiring terminal capable of being detached is installed on the upper portion of the sleeve. The protection section of thick bamboo can shelter from the protection to sleeve pipe and binding post, and the blade rotates and can ventilate the heat dissipation to protection section of thick bamboo inside, and when the inside high temperature of protection section of thick bamboo, the transformer oil in the cylinder body can take place the inflation, and then makes first piston upwards slide, and first piston upwards slides and makes binding post rebound and sleeve pipe break away from to stop transmission current, avoid the sleeve pipe to continue to generate heat and lead to the explosion.

Description

Transformer with outer protection

Technical Field

The invention relates to a transformer, in particular to a transformer with an outer layer protection function.

Background

The transformer has the main functions of current transformation, voltage transformation and impedance transformation, is basic equipment for power transmission and distribution, and is widely applied to the fields of traffic, agriculture, industry, urban communities and the like. The transformer category mainly includes distribution transformers, power transformers, fully-enclosed transformers, and the like.

Patent grant publication number is CN 213070785U's patent and has announced the transformer that a port is convenient for protect, and this transformer includes the transformer body, fixed frame is installed to the fixed articulated in top of transformer body, and the inside stopper that is equipped with of inserting in right side of fixed frame, the right side fixedly connected with bolt of stopper. This transformer is provided with first grip ring and second grip ring, it rotates to drive the worm wheel through the worm, thereby it rotates to drive the screw rod, the internal thread of movable rod inner wall is through the external screw thread use of cooperateing with the screw rod surface, make first grip ring and second grip ring draw close, consolidate the connecting wire of port department, it is not hard up with the port department to prevent that the connecting wire from using for a long time, the influence is used, this transformer protects the port department of transformer body through fixed frame, avoid receiving the external attack, lead to the port to damage. However, the transformer can only simply protect the port, a large amount of heat can be generated in the using process of the transformer to cause fire, the transformer can not cool the port, and the transformer cannot automatically cut off the power when the port is overheated, so that the safety of the transformer is low.

Therefore, the transformer with the outer protection layer is provided, the temperature of the port can be reduced, and the power can be automatically cut off when the port is overheated.

Disclosure of Invention

In order to overcome current transformer can not cool down the port, also can not cut off the power supply automatically when the port is overheated, the lower shortcoming of security, the technical problem is: the transformer with the outer protection layer can cool a port and can automatically cut off power when the port is overheated.

The utility model provides a transformer with outer protection, including the transformer body, a protection section of thick bamboo, the sleeve pipe, binding post, the slide bar, first spring, the connecting block, elevating system and cooling body, the protection section of thick bamboo is installed to the left anterior position at transformer body top, the left anterior position at transformer body top is connected with the sleeve pipe, the sleeve pipe is located a protection section of thick bamboo, the binding post that can dismantle is installed on sleeve pipe upper portion, the equal slidingtype in two portions is connected with the slide bar about protection section of thick bamboo upper portion, all be connected with first spring between slide bar and the protection section of thick bamboo, be connected with the connecting block between controlling two slide bar bottoms, the connecting block is connected with binding post, be equipped with elevating system between protection section of thick bamboo and the slide bar, elevating system is used for driving the slide bar and upwards slides, protection section of thick bamboo upper portion is equipped with cooling body, cooling body is used for cooling to the inside of protection section of thick bamboo.

Further, elevating system is connected with the connecting plate between two slide bar upper portions about including connecting plate, cylinder body, first piston and first push rod, and protection section of thick bamboo upper portion central point puts and is connected with the cylinder body, and the lower part is equipped with transformer oil in the cylinder body, and slidingly there is first piston in the cylinder body, and first piston top central point puts and is connected with first push rod, and first push rod top is worn out the cylinder body and is connected with the connecting plate.

Further, cooling body is including outlet duct, mounting bracket, driving motor and blade, and protection section of thick bamboo upper portion right side is connected with the outlet duct, and both sides all are connected with the mounting bracket around the right part in the outlet duct, installs driving motor between two mounting brackets around, is connected with the blade on driving motor's the output shaft.

Further, still including being used for isolated outside air to put out a fire isolated mechanism, isolated mechanism is including the guide cylinder, the horizontal pole, place a section of thick bamboo, isolated ring, closing plate and connecting rod, the guide cylinder is connected to the anterior position rotary type at protection section of thick bamboo top, connecting plate front side left part position is connected with the horizontal pole, the horizontal pole front end is connected with the guide cylinder slidingtype, protection section of thick bamboo front portion slidingtype is connected with places a section of thick bamboo, it is equipped with dry powder in the section of thick bamboo to place, it is connected with isolated ring to place a section of thick bamboo upper portion, isolated ring is located protection section of thick bamboo, isolated ring and protection section of thick bamboo slidingtype are connected, it is connected with the closing plate to place a section of thick bamboo upper portion, the closing plate is located the protection section of thick bamboo outside, closing plate and protection section of thick bamboo slidingtype are connected, closing plate front side upper portion is connected with the connecting rod, connecting rod upper portion is connected with the guide cylinder slidingtype.

Further, the dry powder feeding device comprises a pushing mechanism used for pushing out dry powder in the placing cylinder, the pushing mechanism comprises a wedge block, a guide rod, a clamping block, a second spring, a vertical rod, a second piston, a third spring, a second push rod and a contact plate, the front side of the upper portion of the protecting cylinder is connected with the wedge block, the upper portion of the left side of the sealing plate is connected with the guide rod, the clamping block is connected with the guide rod in a sliding mode, the second spring is connected between the clamping block and the guide rod, the rear portion of the clamping block is connected with the vertical rod, the vertical rod moves upwards to be in contact with the wedge block, the second piston is connected with the placing cylinder in a sliding mode, the third spring is connected between the second piston and the bottom of the placing cylinder, the third spring is in a compression state, the middle position of the top of the second piston is connected with the second push rod, the upper portion of the second push rod is connected with the placing cylinder in a sliding mode, the top of the second push rod is connected with the contact plate, and the clamping block is in contact with the contact plate.

Furthermore, the splicing mechanism comprises a frame body, a wiring board and an L-shaped rod, the upper portion of the left side of the protective cylinder is connected with the frame body, the wiring board is connected in the frame body in a sliding mode, the L-shaped rod is connected to the front side of the wiring board, and the L-shaped rod is connected with the frame body in a sliding mode.

Furthermore, still including being used for promoting the gliding pushing mechanism of L type pole right automatically, pushing mechanism is connected with two fourth springs between the left side in wiring board and the framework including fourth spring, contact piece and catch bar, L type pole right side is connected with the contact piece, and the guide arm left side is connected with the catch bar, catch bar rebound and contact piece contact.

Furthermore, the air outlet pipe also comprises a filter plate, and the right part in the air outlet pipe is connected with the filter plate.

The invention has the following advantages: 1. a protection section of thick bamboo can shelter from the protection to sleeve pipe and binding post, and driving motor's output shaft rotates and can drive the blade and rotate to protecting the inside heat dissipation that ventilates that carries on of section of thick bamboo, when the inside high temperature of a protection section of thick bamboo, the transformer oil in the cylinder body can take place the inflation, and then makes first piston upwards slide, and first piston upwards slides makes binding post rebound break away from with the sleeve pipe, thereby stops transmission current, avoids the sleeve pipe to continue to generate heat and leads to the explosion.

2. Connecting plate rebound makes the guide cylinder rotate, and then makes isolated ring rebound, rises to the certain degree after when the inside temperature of a protection section of thick bamboo, and open fire can appear in the protection section of thick bamboo inside, and isolated ring rebound also can block the junction of outlet duct and a protection section of thick bamboo to isolated outside air makes the open fire extinguish.

3. The contact plate is not clamped any more after the clamping block slides leftwards, and the third spring resets to enable the second piston to slide upwards to push dry powder in the placing cylinder into the protective cylinder to extinguish fire.

4. The staff passes framework and wiring board contact with external connection line, and the last connecting wire of binding post then is connected with the wiring board, carries electric current through the wiring board, drives catch bar and contact block contact when the guide arm rebound, and then makes the wiring board slide right and break away from with external connection line, avoids the intensity of a fire to cause the damage to outside connecting wire.

Drawings

Fig. 1 is a schematic perspective view of the present invention.

Fig. 2 is a schematic cross-sectional structure of the present invention.

Fig. 3 is a schematic view of a first partial sectional structure of the present invention.

Fig. 4 is a second partial sectional structural view of the present invention.

Fig. 5 is a schematic perspective view of the lifting mechanism of the present invention.

Fig. 6 is a partial sectional structural schematic view of the lifting mechanism of the present invention.

Fig. 7 is a perspective view of the cooling mechanism of the present invention.

Fig. 8 is a schematic sectional view of the cooling mechanism of the present invention.

Fig. 9 is a first perspective view of the isolation mechanism of the present invention.

Fig. 10 is a perspective view of the isolation mechanism of the present invention from a second perspective.

Fig. 11 is a schematic perspective view of the pushing mechanism of the present invention.

Fig. 12 is a schematic perspective view of a part of the pushing mechanism of the present invention.

Fig. 13 is a schematic perspective view of the splicing mechanism of the present invention.

Fig. 14 is a partial sectional structural schematic view of the splicing mechanism of the present invention.

Fig. 15 is a schematic perspective view of the pushing mechanism of the present invention.

Fig. 16 is a schematic perspective view of the outlet pipe and the filter plate according to the present invention.

In the above drawings: 1: transformer body, 2: protective cylinder, 3: sleeve, 4: terminal, 5: slide bar, 6: first spring, 7: connecting block, 8: elevating system, 81: connection plate, 82: cylinder, 83: first piston, 84: first push rod, 9: cooling mechanism, 91: outlet duct, 92: mounting frame, 93: drive motor, 94: blade, 10: isolation mechanism, 101: guide cylinder, 102: cross bar, 103: placement cylinder, 104: isolation ring, 105: sealing plate, 106: connecting rod, 11: ejection mechanism, 111: wedge block, 112: guide rod, 113: a latch, 114: second spring, 115: vertical bar, 116: second piston, 117: third spring, 118: second push rod, 119: contact plate, 12: splicing mechanism, 121: frame, 122: terminal block, 123: l-shaped rod, 13: pushing mechanism, 131: fourth spring, 132: contact block, 133: push rod, 14: and (4) filtering the plates.

Detailed Description

The present invention will be further described with reference to specific examples, which are illustrative of the invention and are not to be construed as limiting the invention.

Example 1

A transformer with an outer layer protection function is disclosed, as shown in figures 1-8, and comprises a transformer body 1, a protection cylinder 2, a sleeve 3, a wiring terminal 4, a slide bar 5, a first spring 6, a connecting block 7, a lifting mechanism 8 and a cooling mechanism 9, wherein the protection cylinder 2 is installed at the left front position of the top of the transformer body 1 through a bolt, the sleeve 3 is connected at the left front position of the top of the transformer body 1, the sleeve 3 is positioned in the protection cylinder 2, the wiring terminal 4 capable of being disassembled is installed at the upper part of the sleeve 3, the slide bar 5 is connected at the left part and the right part of the upper part of the protection cylinder 2 in a sliding manner, the first spring 6 is connected between the slide bar 5 and the protection cylinder 2, the connecting block 7 is welded between the bottoms of the left slide bar 5 and the right slide bar 5, the connecting block 7 is connected with the wiring terminal 4, the lifting mechanism 8 is arranged between the protection cylinder 2 and the slide bar 5, and the lifting mechanism 8 can drive the slide bar 5 to slide upwards, the upper part of the protective cylinder 2 is provided with a cooling mechanism 9, and the cooling mechanism 9 can cool the inside of the protective cylinder 2.

As shown in fig. 1, 2, 5 and 6, the lifting mechanism 8 includes a connecting plate 81, a cylinder 82, a first piston 83 and a first push rod 84, the connecting plate 81 is welded between the upper portions of the left and right slide bars 5, the cylinder 82 is connected to the central position of the upper portion of the protective cylinder 2, transformer oil is filled in the lower portion of the cylinder 82, the first piston 83 is connected to the cylinder 82 in a sliding manner, the first push rod 84 is connected to the central position of the top of the first piston 83, and the top of the first push rod 84 penetrates through the cylinder 82 and is connected to the connecting plate 81.

As shown in fig. 1, fig. 2, fig. 7 and fig. 8, the cooling mechanism 9 includes an air outlet pipe 91, a mounting frame 92, a driving motor 93 and blades 94, the air outlet pipe 91 is welded on the right side of the upper portion of the protective cylinder 2, the mounting frame 92 is welded on the front side and the rear side of the right portion in the air outlet pipe 91, the driving motor 93 is installed between the front mounting frame 92 and the rear mounting frame 92 through bolts, and the blades 94 are connected to an output shaft of the driving motor 93 through keys.

As shown in fig. 16, the filter plate 14 is further included, and the filter plate 14 is connected to the right portion inside the air outlet pipe 91.

When the device is used, a worker connects a connecting line to the wiring terminal 4, the protective cylinder 2 can shield and protect the sleeve 3 and the wiring terminal 4, and the sleeve 3 is prevented from being broken due to collision, when the transformer body 1 operates, the sleeve 3 can generate heat, the worker starts the driving motor 93, the output shaft of the driving motor 93 rotates to drive the blades 94 to rotate, the blades 94 rotate to convey external air into the protective cylinder 2 through the air outlet pipe 91, so that the interior of the protective cylinder 2 is cooled, external dust can be prevented from entering the air outlet pipe 91 under the action of the filter plate 14, when the temperature in the protective cylinder 2 continuously rises, transformer oil in the cylinder body 82 expands to extrude the first piston 83 to slide upwards, the first piston 83 slides upwards to drive the first push rod 84 to slide upwards, the first push rod 84 slides upwards to drive the connecting plate 81 to move upwards, the connecting plate 81 moves upwards to drive the slide rod 5 to slide upwards, the first spring 6 deforms, the slide rod 5 slides upwards to drive the connecting block 7 to move upwards, the connecting block 7 moves upwards to drive the wiring terminal 4 to move upwards to be separated from the sleeve 3, current transmission is stopped, explosion caused by continuous heating of the sleeve 3 is avoided, when the temperature of the sleeve 3 drops, the transformer oil in the cylinder 82 retracts, under the action of the reset of the first spring 6, the sliding rod 5 slides downwards to reset, the sliding rod 5 slides downwards to drive the first push rod 84 to slide downwards through the connecting plate 81, the first push rod 84 slides downwards to drive the first piston 83 to slide downwards to reset, the sliding rod 5 slides downwards and simultaneously drives the connecting block 7 to move downwards, and then the wiring terminal 4 is inserted into the bushing 3 again for conducting, when the transformer body 1 stops operating, the worker turns off the driving motor 93.

Example 2

Based on embodiment 1, as shown in fig. 1, 2, 9 and 10, the fire extinguisher further comprises an isolation mechanism 10, the isolation mechanism 10 can isolate external air for fire extinguishing, the isolation mechanism 10 comprises a guide cylinder 101, a cross bar 102, a placing cylinder 103, an isolation ring 104, a sealing plate 105 and a connecting rod 106, the front part of the top of the protection cylinder 2 is rotatably connected with the guide cylinder 101, the left part of the front side of the connecting plate 81 is welded with the cross bar 102, the front end of the cross bar 102 is slidably connected with the guide cylinder 101, the front part of the protection cylinder 2 is slidably connected with the placing cylinder 103, dry powder is filled in the placing cylinder 103, the upper part of the placing cylinder 103 is connected with the isolation ring 104, the isolation ring 104 is located in the protection cylinder 2, the isolation ring 104 is slidably connected with the protection cylinder 2, the upper part of the placing cylinder 103 is connected with the sealing plate 105, the sealing plate 105 is located outside the protection cylinder 2, the sealing plate 105 is slidably connected with the protection cylinder 2, the upper part of the front side of the sealing plate 105 is welded with the connecting rod 106, the upper part of the connecting rod 106 is slidably connected with the guide cylinder 101.

When the device is used, the connecting plate 81 moves upwards to drive the cross rod 102 to move upwards, the cross rod 102 moves upwards to drive the guide cylinder 101 to rotate, the guide cylinder 101 rotates to drive the connecting rod 106 to move upwards, the connecting rod 106 moves upwards to drive the sealing plate 105 to slide upwards, the sealing plate 105 slides upwards to drive the placing cylinder 103 to move upwards, the placing cylinder 103 moves upwards to drive the isolating ring 104 to move upwards, when the temperature in the protecting cylinder 2 rises to a certain degree, open fire may appear in the protecting cylinder 2, the isolating ring 104 also moves upwards to the joint of the air outlet pipe 91 and the protecting cylinder 2 to block the joint of the air outlet pipe 91 and the protecting cylinder 2, so that the open fire is extinguished, when the connecting plate 81 moves downwards, the cross rod 102 moves downwards to drive the guide cylinder 101 to rotate backwards, the connecting rod 106 moves downwards due to the reverse rotation of the guide cylinder 101, the connecting rod 106 moves downwards, and the sealing plate 105 moves downwards, the sealing plate 105 slides downwards to drive the isolating ring 104 to slide downwards to restore through the placing cylinder 103, so that the connecting part of the air outlet pipe 91 and the protecting cylinder 2 is not blocked any more.

As shown in fig. 1, fig. 2, fig. 11 and fig. 12, the dry powder drying device further includes a pushing-out mechanism 11, the pushing-out mechanism 11 is capable of pushing out the dry powder in the placing cylinder 103, the pushing-out mechanism 11 includes a wedge block 111, a guide rod 112, a clamping block 113, a second spring 114, a vertical rod 115, a second piston 116, a third spring 117, a second push rod 118 and a contact plate 119, the wedge block 111 is welded to the front side of the upper portion of the protecting cylinder 2, the guide rod 112 is welded to the upper portion of the left side of the sealing plate 105, the clamping block 113 is slidably connected to the guide rod 112, the second spring 114 is connected between the clamping block 113 and the guide rod 112, the vertical rod 115 is welded to the rear portion of the clamping block 113, the vertical rod 115 moves upward to contact with the wedge block 111, the second piston 116 is slidably connected to the placing cylinder 103, the third spring 117 is connected to the inner bottom of the placing cylinder 103, the third spring 117 is in a compressed state, the middle position of the top of the second piston 116 is connected to the second push rod 118, the upper part of the second push rod 118 is slidably connected with the placing cylinder 103, a contact plate 119 is welded on the top of the second push rod 118, and the fixture block 113 is in contact with the contact plate 119.

When the device is used, the sealing plate 105 slides upwards to drive the vertical rod 115 to move upwards through the guide rod 112 and the fixture block 113, when the vertical rod 115 moves upwards to be in contact with the wedge block 111, the vertical rod 115 continues to move upwards and is continuously moved leftwards by the wedge block 111, the vertical rod 115 moves leftwards to drive the fixture block 113 to slide leftwards, the second spring 114 deforms, the fixture block 113 slides leftwards no longer clamps the contact plate 119, at this time, under the reset action of the third spring 117, the second piston 116 slides upwards along with the vertical rod 116, the second piston 116 slides upwards to push dry powder in the placing cylinder 103 into the protective cylinder 2 to extinguish a fire, when the sealing plate 105 slides downwards, the vertical rod 115 moves downwards along with the vertical rod, at this time, under the reset action of the second spring 114, the fixture block 113 drives the vertical rod 115 to slide rightwards to reset, at this time, a worker can push the contact plate 119 to move downwards, the contact plate 119 moves downwards, and the second piston 116 is pushed downwards to slide downwards through the second push rod 118, when the contact plate 119 moves downwards to contact with the fixture block 113, the contact plate 119 continues to move downwards to squeeze the fixture block 113 to slide leftwards, the second spring 114 deforms, when the contact plate 119 moves downwards to be separated from the fixture block 113, under the reset action of the second spring 114, the fixture block 113 slides rightwards to reset to clamp the contact plate 119, and further the position of the second piston 116 is fixed, and after the second piston 116 slides downwards to reset, a worker can add dry powder into the placing cylinder 103 again for use next time.

As shown in fig. 1, 13 and 14, the protective cylinder further comprises a splicing mechanism 12, the splicing mechanism 12 can splice the connecting wires, the splicing mechanism 12 comprises a frame 121, a wiring board 122 and an L-shaped rod 123, the frame 121 is welded on the upper portion of the left side of the protective cylinder 2, the wiring board 122 is connected in the frame 121 in a sliding manner, the L-shaped rod 123 is welded on the front side of the wiring board 122, and the L-shaped rod 123 is connected with the frame 121 in a sliding manner.

When the device is used, an operator penetrates the left side of the frame body 121 to be in contact with the left side of the wiring board 122, the connecting wires on the wiring terminal 4 are connected with the right side of the wiring board 122, the transformer body 1 operates to enable current to be transmitted to external connecting wires through the wiring board 122, when open fire occurs in the protective cylinder 2, the operator pushes the L-shaped rod 123 to slide rightwards, the L-shaped rod 123 slides rightwards to drive the wiring board 122 to slide rightwards to be separated from the external connecting wires, after fire control is extinguished, the operator pushes the L-shaped rod 123 to slide leftwards, and the L-shaped rod 123 slides leftwards to drive the wiring board 122 to slide leftwards to be in contact with the external connecting wires again.

As shown in fig. 1, 14 and 15, the device further includes a pushing mechanism 13, the pushing mechanism 13 can automatically push the L-shaped rod 123 to slide rightward, the pushing mechanism 13 includes a fourth spring 131, a contact block 132 and a pushing rod 133, two fourth springs 131 are connected between the wiring board 122 and the left side of the inside of the frame 121, the contact block 132 is welded on the right side of the L-shaped rod 123, the pushing rod 133 is welded on the left side of the guide rod 112, and the pushing rod 133 moves upward and contacts with the contact block 132.

When the device is used, the guide rod 112 moves upwards to drive the pushing rod 133 to move upwards, when the pushing rod 133 moves upwards to be in contact with the contact block 132, the pushing rod 133 continues to move upwards to press the contact block 132 to move rightwards, the contact block 132 moves rightwards to drive the L-shaped rod 123 to slide rightwards, so that the wiring board 122 slides rightwards to be separated from an external connecting wire, the fourth spring 131 deforms, when the guide rod 112 moves downwards, the pushing rod 133 moves downwards along with the guide rod 112 and does not press the contact block 132 any more, at the moment, under the reset action of the fourth spring 131, the wiring board 122 slides leftwards along with the guide rod and is in contact with the external connecting wire again, and the L-shaped rod 123 drives the contact block 132 to move leftwards to reset along with the guide rod.

The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and shall cover the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. A transformer with an outer layer protection function comprises a transformer body (1), a protection cylinder (2), a sleeve (3), a wiring terminal (4), a sliding rod (5), a first spring (6) and a connecting block (7), wherein the protection cylinder (2) is installed at the left front part of the top of the transformer body (1), the sleeve (3) is connected at the left front part of the top of the transformer body (1), the sleeve (3) is positioned in the protection cylinder (2), the wiring terminal (4) capable of being disassembled is installed at the upper part of the sleeve (3), the sliding rod (5) is connected at the left part and the right part of the upper part of the protection cylinder (2) in a sliding mode, the first spring (6) is connected between the sliding rod (5) and the protection cylinder (2), the connecting block (7) is connected between the bottoms of the left sliding rod and the right sliding rod (5), the connecting block (7) is connected with the wiring terminal (4), and the transformer is characterized in that, the cooling device is characterized by further comprising a lifting mechanism (8) and a cooling mechanism (9), wherein the lifting mechanism (8) is arranged between the protective cylinder (2) and the slide rod (5), the lifting mechanism (8) is used for driving the slide rod (5) to slide upwards, the cooling mechanism (9) is arranged on the upper portion of the protective cylinder (2), and the cooling mechanism (9) is used for cooling the inside of the protective cylinder (2).

2. The transformer with the outer protection layer as claimed in claim 1, wherein the lifting mechanism (8) comprises a connecting plate (81), a cylinder body (82), a first piston (83) and a first push rod (84), the connecting plate (81) is connected between the upper portions of the left and right slide rods (5), the cylinder body (82) is connected to the central position of the upper portion of the protection cylinder (2), transformer oil is filled in the lower portion of the cylinder body (82), the first piston (83) is connected to the cylinder body (82) in an inward sliding manner, the first push rod (84) is connected to the central position of the top of the first piston (83), and the top of the first push rod (84) penetrates through the cylinder body (82) and is connected with the connecting plate (81).

3. The transformer with the outer protection layer according to claim 2, wherein the cooling mechanism (9) comprises an air outlet pipe (91), mounting frames (92), a driving motor (93) and blades (94), the air outlet pipe (91) is connected to the right side of the upper portion of the protection cylinder (2), the mounting frames (92) are connected to the front side and the rear side of the inner right portion of the air outlet pipe (91), the driving motor (93) is installed between the front mounting frame and the rear mounting frame (92), and the blades (94) are connected to an output shaft of the driving motor (93).

4. The transformer with the outer protection layer according to claim 3, further comprising an isolation mechanism (10) for isolating external air to extinguish fire, wherein the isolation mechanism (10) comprises a guide cylinder (101), a cross rod (102), a placing cylinder (103), an isolation ring (104), a sealing plate (105) and a connecting rod (106), the front part of the top of the protection cylinder (2) is rotatably connected with the guide cylinder (101), the cross rod (102) is connected to the left part of the front side of the connecting plate (81), the front end of the cross rod (102) is slidably connected with the guide cylinder (101), the placing cylinder (103) is slidably connected to the front part of the protection cylinder (2), dry powder is filled in the placing cylinder (103), the isolation ring (104) is connected to the upper part of the placing cylinder (103), the isolation ring (104) is located in the protection cylinder (2), and the isolation ring (104) is slidably connected with the protection cylinder (2), the upper part of the placing cylinder (103) is connected with a sealing plate (105), the sealing plate (105) is positioned on the outer side of the protective cylinder (2), the sealing plate (105) is connected with the protective cylinder (2) in a sliding manner, the upper part of the front side of the sealing plate (105) is connected with a connecting rod (106), and the upper part of the connecting rod (106) is connected with the guide cylinder (101) in a sliding manner.

5. The transformer with the outer layer protection as claimed in claim 4, further comprising a pushing mechanism (11) for pushing out the dry powder in the placing cylinder (103), wherein the pushing mechanism (11) comprises a wedge block (111), a guide rod (112), a fixture block (113), a second spring (114), a vertical rod (115), a second piston (116), a third spring (117), a second push rod (118) and a contact plate (119), the front side of the upper portion of the protecting cylinder (2) is connected with the wedge block (111), the upper portion of the left side of the sealing plate (105) is connected with the guide rod (112), the fixture block (113) is slidably connected on the guide rod (112), the second spring (114) is connected between the fixture block (113) and the guide rod (112), the rear portion of the fixture block (113) is connected with the vertical rod (115), the vertical rod (115) moves upwards to contact with the wedge block (111), the second piston (116) is slidably connected in the placing cylinder (103), a third spring (117) is connected between the second piston (116) and the bottom in the placing cylinder (103), the third spring (117) is in a compressed state, a second push rod (118) is connected to the middle position of the top of the second piston (116), the upper portion of the second push rod (118) is connected with the placing cylinder (103) in a sliding mode, a contact plate (119) is connected to the top of the second push rod (118), and the fixture block (113) is in contact with the contact plate (119).

6. The transformer with the outer layer protection as claimed in claim 5, further comprising a splicing mechanism (12) for splicing the connection lines, wherein the splicing mechanism (12) comprises a frame (121), a wiring board (122) and an L-shaped rod (123), the frame (121) is connected to the upper portion of the left side of the protection cylinder (2), the wiring board (122) is connected to the frame (121) in an inner sliding manner, the L-shaped rod (123) is connected to the front side of the wiring board (122), and the L-shaped rod (123) is connected to the frame (121) in a sliding manner.

7. The transformer with the outer protection layer as claimed in claim 6, further comprising a pushing mechanism (13) for automatically pushing the L-shaped rod (123) to slide rightwards, wherein the pushing mechanism (13) comprises a fourth spring (131), a contact block (132) and a pushing rod (133), two fourth springs (131) are connected between the wiring board (122) and the left side in the frame (121), the contact block (132) is connected to the right side of the L-shaped rod (123), the pushing rod (133) is connected to the left side of the guide rod (112), and the pushing rod (133) moves upwards to contact with the contact block (132).

8. The transformer with the outer protection layer according to claim 7, further comprising a filter plate (14), wherein the filter plate (14) is connected to the right part of the inner part of the air outlet pipe (91).