Power transformer with anti-theft mechanism

By designing anti-theft mechanisms in the power transformer, including locking base plate, door-type mounting plug plate, disassembly knob and anti-theft base box, the problem of poor anti-theftness of the existing power transformer is solved, achieving higher anti-theftness and convenient maintenance.

CN119905317AInactive Publication Date: 2025-04-29SHANGHAI GUGANG ELECTRONIC TECH CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Application Number
CN202510221633.3
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-02-26
Publication Date
2025-04-29
Estimated Expiration
Not applicable · inactive patent

AI Technical Summary

Technical Problem

The existing power transformers are installed outdoors and are relatively simple in fixing, which leads to poor anti-theft properties and is prone to stolen, resulting in power outages.

Method used

A power transformer with an anti-theft mechanism is designed, using components such as locking base plate, door-type mounting plug plate, disassembly knob and anti-theft base box. Through the mutual cooperation of these components, the transformer box is fixed and disassembled to prevent theft.

Benefits of technology

It effectively improves the anti-theftness of the power transformer, prevents theft personnel from easily removing the transformer box, reduces the occurrence of power outages, and facilitates normal maintenance personnel to disassemble and repair.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN119905317A_ABST
    Figure CN119905317A_ABST
Patent Text Reader

Abstract

The invention discloses a power transformer with an anti-theft mechanism, and relates to the technical field of power transformers, the power transformer comprises a transformer box body, the left side of the top of the transformer box body is fixedly provided with an oil level gauge, and the rear side of the top of the transformer box body is fixedly provided with three low-voltage wiring terminals; three high-voltage wiring terminals are fixedly mounted on the front side of the top of the transformer box body, an anti-theft mounting mechanism is arranged at the bottom of the transformer box body and comprises a locking bottom plate, and anti-theft base boxes are fixedly mounted on the four side faces of the locking bottom plate; the left side and the right side of the anti-theft base box are each provided with an anti-theft triggering mechanism, and the left side and the right side of the bottom of the anti-theft base box are each fixedly provided with a mirroring embedded inserting plate. According to the anti-theft power transformer, through mutual cooperation between the anti-theft triggering mechanism and the pre-embedded inserting plate, even though a thief removes a fixed bolt, the whole transformer box cannot be easily carried away, and the anti-theft effect of the power transformer is improved.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] The invention relates to the technical field of power transformers, and in particular to a power transformer with an anti-theft mechanism. Background Art

[0002] A transformer is a device that uses the principle of electromagnetic induction to change AC voltage. Its main components are the primary coil, secondary coil, and iron core. Its main functions include voltage conversion, current conversion, impedance conversion, isolation, voltage stabilization, etc. Transformers are basic equipment for power transmission and distribution and are widely used in industries, agriculture, transportation, urban communities, and other fields. The existing technology has the following problems:

[0003] Because existing power transformers are generally installed outdoors and are usually fixed with multiple bolts, they are inconvenient to disassemble and assemble, but have poor anti-theft performance. Transformer thefts often occur, and are becoming more and more frequent, not only causing the transformers to fail to work properly, but also leading to major accidents such as large-scale power outages, seriously affecting people's normal lives. Summary of the invention

[0004] The present invention provides a power transformer with an anti-theft mechanism to solve the problems raised in the above background technology.

[0005] In order to solve the above technical problems, the technical solution adopted by the present invention is:

[0006] A power transformer with an anti-theft mechanism comprises a transformer box, an oil level gauge is fixedly installed on the top left side of the transformer box, three low-voltage terminals are fixedly installed on the top rear side of the transformer box, three high-voltage terminals are fixedly installed on the top front side of the transformer box, an anti-theft installation mechanism is arranged at the bottom of the transformer box, the anti-theft installation mechanism comprises a locking bottom plate, anti-theft base boxes are fixedly installed on four sides of the locking bottom plate, anti-theft trigger mechanisms are arranged on the left and right sides of the anti-theft base box, mirror-imaged embedded plug-ins are fixedly installed on the left and right sides of the bottom of the anti-theft base box, door-type installation plug-ins are fixedly installed on the left and right sides of the bottom of the transformer box, two vertical parts of the two door-type installation plug-ins are provided with locking holes that pass through left and right, two slots are provided on the left and right sides of the locking bottom plate, the slots are provided with through holes that pass through left and right, the vertical parts of the two door-type installation plug-ins are clamped with the two slots on the left and right sides, and the locking holes are aligned with the through holes.

[0007] A further improvement of the technical solution of the present invention is that: the locking base plate is provided with a drive cabin, a groove is provided at the bottom of the drive cabin, a bevel gear 1 is movably installed at the center of the bottom of the inner wall of the drive cabin, the bottom end of the bevel gear 1 passes through the groove and is fixedly installed with a disassembly knob, a rotating rod is fixedly connected between the left and right sides of the drive cabin, a bevel gear 2 is fixedly installed in the middle of the outer wall of the rotating rod, and the bevel gear 2 is meshed with the bevel gear 1.

[0008] A further improvement of the technical solution of the present invention lies in that: threaded walls with opposite threads are provided on the left and right sides of the outer wall of the rotating rod, movable long plates are threadedly installed on the outer walls of the two threaded walls, locking rods are fixedly installed on the opposite back sides of the two movable long plates, the through hole is connected to the inner cavity of the drive cabin, and the other end of the locking rod passes through the through hole and the locking hole.

[0009] A further improvement of the technical solution of the present invention is that electric push rods are fixedly installed on the left and right sides of the inner wall of the anti-theft base box, and sealing merging plates are fixedly installed on the output ends of the two electric push rods. An entry hole that passes through the inner cavity of the anti-theft base box is opened at the bottom, and the bottoms of the two sealing merging plates overlap with the bottom of the inner wall of the anti-theft base box.

[0010] A further improvement of the technical solution of the present invention is that the two anti-theft trigger mechanisms include mounting side plates, the two mounting side plates are respectively fixedly connected to the left and right sides of the anti-theft base box, and the two mounting side plates are each provided with three bolt holes that pass through the top and bottom, and the inner circle of the bolt holes is penetrated by five-pointed fixing bolts.

[0011] A further improvement of the technical solution of the present invention lies in that: an infrared emitting sensor is fixedly installed on the top of the two mounting side panels, a flip cover is movably installed on the side of the top of the two mounting side panels away from the anti-theft base box, an infrared emitting receiver is fixedly installed on the top of the inner wall of the two flip covers, the infrared emitting receiver and the infrared emitting sensor are on the same vertical line, an adsorption magnetic strip is fixedly installed on the bottom of the flip cover, and the adsorption magnetic strip is adsorbed to the top of the mounting side panel.

[0012] A further improvement of the technical solution of the present invention is that a control cabin is opened on the opposite sides of the two embedded plug-in plates, an anti-theft motor is fixedly installed on the inner wall of the control cabin, a threaded rod is fixedly installed on the output shaft of the anti-theft motor, and a limit plate is set at the other end of the threaded rod.

[0013] A further improvement of the technical solution of the present invention is that a movable plate is threadedly installed on the outer wall of the threaded rod, and the four side surfaces of the movable plate are respectively overlapped with the four side surfaces of the inner wall of the control cabin, and a plurality of conical plug rods are evenly fixedly installed up and down on the side of the movable plate away from the anti-theft motor.

[0014] Due to the adoption of the above technical solution, the present invention has the following technical advances compared with the prior art:

[0015] 1. The present invention provides a power transformer with an anti-theft mechanism. Through the cooperation between the anti-theft trigger mechanism and the embedded plug plate, even if the thief removes the fixing bolts, the entire transformer box cannot be easily removed, thereby improving the anti-theft effect of the power transformer.

[0016] 2. The present invention provides an electric transformer with an anti-theft mechanism. Through the cooperation between a locking base plate, a door-type mounting plug plate, and a disassembly knob, the transformer box and the locking base plate fixed on the top of the anti-theft base box can be quickly separated and disassembled, making it convenient for normal maintenance personnel to disassemble and repair the transformer box.

[0017] 3. The present invention provides an electric transformer with an anti-theft mechanism. Through the mutual cooperation among the anti-theft base box, the insertion hole, the electric push rod, and the sealing merging plate, even if the thief wants to rotate the disassembly knob privately, he cannot put his hand into the anti-theft base box due to the obstruction of the sealing merging plate. The thief can only manually start the electric push rod to open the insertion hole, which facilitates disassembly while ensuring the anti-theft effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is an overall schematic diagram of the structure of the present invention;

[0019] Figure 2 It is a schematic diagram of the anti-theft installation mechanism of the structure of the present invention;

[0020] Figure 3 It is a cross-sectional schematic diagram of a locking base plate of the structure of the present invention;

[0021] Figure 4 A schematic diagram of the anti-theft base box of the structure of the present invention;

[0022] Figure 5 A schematic diagram of the anti-theft trigger mechanism of the structure of the present invention;

[0023] Figure 6 The figure is a cross-sectional schematic diagram of the embedded plug-in board of the structure of the present invention.

[0024] In the figure: 1. Transformer box; 11. Door-type installation plug plate; 12. Locking hole; 2. Anti-theft installation mechanism; 21. Locking bottom plate; 211. Drive cabin; 212. Slot; 213. Through hole; 214. Bevel gear 1; 215. Disassembly knob; 216. Turn bar; 217. Bevel gear 2; 218. Threaded wall; 2181. Moving long board; 2182. Locking plug rod; 22. Anti-theft base box; 221. Insertion hole; 222. Electric push rod; 223 , sealing merging plate; 23, anti-theft trigger mechanism; 231, mounting side plate; 232, bolt hole; 233, pentagonal fixing bolt; 234, infrared transmitting sensor; 235, flip cover; 236, infrared transmitting receiver; 237, adsorption magnetic strip; 24, embedded plug-in plate; 241, control cabin; 242, anti-theft motor; 243, threaded rod; 244, moving plate; 245, conical plug-in rod; 3, oil level gauge; 4, low-voltage terminal; 5, high-voltage terminal. DETAILED DESCRIPTION

[0025] The present invention is further described in detail below in conjunction with embodiments:

[0026] Example 1

[0027] like Figure 1-6 As shown, the present invention provides a power transformer with an anti-theft mechanism, comprising a transformer box 1, an oil level gauge 3 is fixedly installed on the top left side of the transformer box 1, three low-voltage wiring terminals 4 are fixedly installed on the top rear side of the transformer box 1, three high-voltage wiring terminals 5 are fixedly installed on the top front side of the transformer box 1, an anti-theft installation mechanism 2 is arranged at the bottom of the transformer box 1, the anti-theft installation mechanism 2 comprises a locking bottom plate 21, anti-theft base boxes 22 are fixedly installed on four sides of the locking bottom plate 21, and anti-theft base boxes 22 are arranged on both left and right sides. Trigger mechanism 23, mirror-image embedded plug-in plates 24 are fixedly installed on the left and right sides of the bottom of the anti-theft base box 22, door-type mounting plug-in plates 11 are fixedly installed on the left and right sides of the bottom of the transformer box 1, and locking holes 12 that pass through left and right are opened at the two vertical parts of the two door-type mounting plug-in plates 11 in front and behind, and two slots 212 are opened on the left and right sides of the locking base plate 21, and the slots 212 are opened with through holes 213 that pass through left and right, and the vertical parts of the two door-type mounting plug-in plates 11 are snap-fitted with the two slots 212 on the left and right sides, and the locking holes 12 are aligned with the through holes 213.

[0028] In this embodiment, during installation, the transformer box 1 is lifted, and the door-shaped installation plug plate 11 is aligned with the slot 212 on the top of the locking base plate 21 and inserted so that the locking hole 12 is aligned with the through hole 213, thereby completing the preliminary fixation. The low-voltage terminal 4 is used to connect the low-voltage line, the high-voltage terminal 5 is used to connect the high-voltage line, and the oil level gauge 3 is used to observe the oil level inside the transformer.

[0029] Example 2

[0030] like Figure 1-6 As shown, on the basis of Example 1, the present invention provides a technical solution: preferably, the locking base plate 21 is provided with a driving cabin 211, a groove is provided at the bottom of the driving cabin 211, a bevel gear 214 is movably installed at the center of the bottom of the inner wall of the driving cabin 211, the bottom end of the bevel gear 214 penetrates into the groove and is fixedly installed with a disassembly knob 215, a rotating rod 216 is fixedly connected between the left and right sides of the driving cabin 211, a bevel gear 217 is fixedly installed on the middle of the outer wall of the rotating rod 216, the bevel gear 217 is meshed with the bevel gear 214, and threaded walls 218 with opposite threads are provided on the left and right sides of the outer wall of the rotating rod 216, and movable long plates 2181 are threadedly installed on the outer walls of the two threaded walls 218, and locking plug rods 2182 are fixedly installed on the opposite back surfaces of the two movable long plates 2181, the through hole 213 is connected with the inner cavity of the driving cabin 211, and the other end of the locking plug rod 2182 penetrates the through hole 213 and the locking hole 12.

[0031] In this embodiment, the bevel gear 1 214 can be driven to rotate by rotating the disassembly knob 215, and the engagement of the bevel gear 1 214 and the bevel gear 2 217 can drive the rotating rod 216 to rotate, thereby driving the opposite threaded walls 218 on the left and right sides to rotate, so that the two movable long plates 2181 are separated and moved from each other, and the locking rod 2182 passes through the through hole 213 and is inserted into the locking hole 12, so that the transformer box 1 is fixed together with the locking base plate 21, and the locking base plate 21 is fixed on the top of the anti-theft base box 22, so that the transformer box 1 can be easily disassembled and assembled.

[0032] Example 3

[0033] like Figure 1-6 As shown, on the basis of Example 1, the present invention provides a technical solution: preferably, electric push rods 222 are fixedly installed on the left and right sides of the inner wall of the anti-theft base box 22, and sealing merging plates 223 are fixedly installed on the output ends of the two electric push rods 222. The bottom of the anti-theft base box 22 is provided with an insertion hole 221 that passes through its inner cavity, and the bottom of the two sealing merging plates 223 overlaps with the bottom of the inner wall of the anti-theft base box 22.

[0034] In this embodiment, when it is necessary to rotate the disassembly knob 215, the transformer box 1 can only be lifted and the two electric push rods 222 in the anti-theft base box 22 can be started, so that the two sealing merging plates 223 are separated from each other, and the seal of the insertion hole 221 is released, so that the hand can be inserted into the inner cavity of the anti-theft base box 22 and the disassembly knob 215 is rotated. After the anti-theft is triggered, the two electric push rods 222 in the anti-theft base box 22 will be automatically started to merge, and the insertion hole 221 will continue to be sealed, so that it is impossible to dig out a little soil and then insert the insertion hole 221 to rotate the disassembly knob 215, thereby achieving a good anti-theft effect.

[0035] Example 4

[0036] like Figure 1-6 As shown, on the basis of Example 1, the present invention provides a technical solution: preferably, the two anti-theft trigger mechanisms 23 include mounting side plates 231, the two mounting side plates 231 are respectively fixedly connected to the left and right sides of the anti-theft base box 22, the two mounting side plates 231 are each provided with three bolt holes 232 that penetrate up and down, the inner circle of the bolt hole 232 is penetrated by a pentagonal fixing bolt 233, the top of the two mounting side plates 231 are both fixedly installed with an infrared transmitting sensor 234, the top of the two mounting side plates 231 is movably installed with a flip cover 235 on one side away from the anti-theft base box 22, the inner wall tops of the two flip covers 235 are both fixedly installed with an infrared transmitting receiver 236, and the infrared transmitting receiver 236 is connected to the infrared transmitting receiver 236. The infrared emission sensor 234 is on the same vertical line, and an adsorption magnetic strip 237 is fixedly installed on the bottom of the flip cover 235. The adsorption magnetic strip 237 and the top of the installation side plate 231 are adsorbed to each other. Control cabins 241 are opened on the opposite backs of the two embedded plug-in plates 24. An anti-theft motor 242 is fixedly installed on the inner wall of the control cabin 241. A threaded rod 243 is fixedly installed on the output shaft of the anti-theft motor 242. A limit plate is provided at the other end of the threaded rod 243. A moving plate 244 is threadedly installed on the outer wall of the threaded rod 243. The four side surfaces of the moving plate 244 are respectively overlapped with the four side surfaces of the inner wall of the control cabin 241. A plurality of conical plug-in rods 245 are evenly fixedly installed up and down on the side of the moving plate 244 away from the anti-theft motor 242.

[0037] In this embodiment, in order to prevent the transformer box 1 together with the anti-theft base box 22 from being directly stolen, the five-corner fixing bolt 233 is fixed to the ground through the bolt hole 232 opened in the installation side plate 231, and then the flip cover 235 is rotated and closed to block the five-corner fixing bolt 233. At the same time, the infrared rays generated by the infrared emission sensor 234 will be received by the infrared emission receiver 236. This is a normal state. Once the thief privately opens the adsorption magnetic strip 237, the infrared rays emitted by the infrared emission sensor 234 will not be received by the infrared emission receiver 236, thereby starting the anti-theft mode. First, the anti-theft motor 242 in the control cabin 241 opened by the two pre-buried plug-in plates 24 pre-buried in the ground is controlled to start, thereby driving the threaded rod 243 to rotate, and the threaded connection between the moving plate 244 and the threaded rod 243 can make the moving plate 244 move out of the moving plate 244, driving a plurality of conical plug-in rods 245 to be deeply inserted into the soil, so that even if the five-corner fixing bolt 233 is removed, the transformer box 1 cannot be easily pulled up.

[0038] The working principle of the power transformer with anti-theft mechanism will be specifically described below.

[0039] like Figure 1-6As shown, during installation, the transformer box 1 is lifted, and the door-shaped installation plug plate 11 is aligned with the slot 212 on the top of the locking bottom plate 21 and inserted, so that the locking hole 12 is aligned with the through hole 213, and then the disassembly knob 215 is rotated to drive the bevel gear 1 214 to rotate, and the engagement of the bevel gear 1 214 with the bevel gear 217 can drive the rotating rod 216 to rotate, and drive the opposite threaded walls 218 on the left and right sides to rotate, so that the two movable long plates 2181 are separated and moved from each other, and the locking plug rod 2182 passes through the through hole 213 and is inserted into the locking hole 12, so that the transformer The transformer box body 1 is fixed with the locking bottom plate 21, and the locking bottom plate 21 is fixed to the top of the anti-theft base box 22. When the disassembly knob 215 needs to be rotated, it can only be done by lifting the transformer box body 1 and starting the two electric push rods 222 in the anti-theft base box 22, so that the two sealing merging plates 223 are separated from each other, and the seal of the insertion hole 221 is released, so that the hand can be inserted into the inner cavity of the anti-theft base box 22 and the disassembly knob 215 can be rotated. At the same time, in order to prevent the transformer box body 1 and the anti-theft base box 22 from being directly stolen, the five-point fixing bolt 233 is passed through the installation side After the bolt hole 232 opened in the plate 231 is fixed to the ground, the flip cover 235 is rotated and closed to block the five-corner fixing bolt 233. At the same time, the infrared rays generated by the infrared emission sensor 234 will be received by the infrared emission receiver 236. This is a normal state. Once the thief opens the adsorption magnetic strip 237 privately, the infrared rays emitted by the infrared emission sensor 234 will not be received by the infrared emission receiver 236, thereby starting the anti-theft mode. First, the control cabin 241 opened in the pre-buried plug plate 24 inserted in advance into the ground is controlled to start. The anti-theft motor 242 drives the threaded rod 243 to rotate, and the threaded connection between the movable plate 244 and the threaded rod 243 can be used to move the movable plate 244 out of the movable plate 244, driving a plurality of conical insertion rods 245 to be deeply inserted into the soil, so that even if the five-pointed fixing bolt 233 is removed, the transformer box 1 cannot be easily pulled out, and at the same time, the two electric push rods 222 in the anti-theft base box 22 are started to merge, and the insertion hole 221 is continued to be sealed, so that after digging out a little soil, it is impossible to insert the insertion hole 221 to rotate the disassembly knob 215, thereby achieving a good anti-theft effect.

[0040] The above generally describes the present invention in detail, but it is obvious to a person skilled in the art that some modifications or improvements can be made to the present invention. Therefore, modifications or improvements that do not depart from the spirit of the present invention are within the scope of protection of the present invention.

Claims

1. A power transformer with an anti-theft mechanism, comprising a transformer box (1), an oil level gauge (3) fixedly mounted on the left side of the top of the transformer box (1), three low-voltage terminals (4) fixedly mounted on the rear side of the top of the transformer box (1), and three high-voltage terminals (5) fixedly mounted on the front side of the top of the transformer box (1), characterized in that: The bottom of the transformer box (1) is provided with an anti-theft installation mechanism (2), the anti-theft installation mechanism (2) comprises a locking bottom plate (21), four sides of the locking bottom plate (21) are fixedly provided with an anti-theft base box (22), the left and right sides of the anti-theft base box (22) are both provided with an anti-theft trigger mechanism (23), the left and right sides of the bottom of the anti-theft base box (22) are both fixedly provided with a mirror image embedded plug-in board (24), the left and right sides of the bottom of the transformer box (1) are both fixedly provided with a mirror image embedded plug-in board (24), and the left and right sides of the bottom of the transformer box (1) are both fixedly provided with a mirror image embedded plug-in board (24). A door-shaped mounting plug plate (11) is fixedly installed, and two vertical positions of the two door-shaped mounting plug plates (11) are provided with locking holes (12) that penetrate left and right, and two slots (212) are provided on the left and right sides of the locking base plate (21), and the slots (212) are provided with through holes (213) that penetrate left and right, and the vertical positions of the two door-shaped mounting plug plates (11) are both engaged with the two slots (212) on the left and right sides, and the locking holes (12) are aligned with the through holes (213).

2. A power transformer with an anti-theft mechanism according to claim 1, characterized in that: The locking base plate (21) is provided with a driving cabin (211), a groove is provided at the bottom of the driving cabin (211), a bevel gear 1 (214) is movably installed at the center of the bottom of the inner wall of the driving cabin (211), the bottom end of the bevel gear 1 (214) penetrates into the groove and is fixedly installed with a disassembly knob (215), a rotating rod (216) is fixedly connected between the left and right sides of the driving cabin (211), a bevel gear 2 (217) is fixedly installed at the middle of the outer wall of the rotating rod (216), and the bevel gear 2 (217) is meshed with the bevel gear 1 (214).

3. A power transformer with an anti-theft mechanism according to claim 2, characterized in that: The outer wall of the rotating rod (216) is provided with threaded walls (218) with opposite threads on both sides, and the outer walls of the two threaded walls (218) are threadedly installed with movable long plates (2181), and the opposite back surfaces of the two movable long plates (2181) are fixedly installed with locking rods (2182), the through hole (213) is connected with the inner cavity of the driving cabin (211), and the other end of the locking rod (2182) passes through the through hole (213) and the locking hole (12).

4. The power transformer with an anti-theft mechanism according to claim 1, characterized in that: Electric push rods (222) are fixedly mounted on both left and right sides of the inner wall of the anti-theft base box (22); sealing merging plates (223) are fixedly mounted on the output ends of the two electric push rods (222); an insertion hole (221) penetrating the inner cavity of the anti-theft base box (22) is provided at the bottom; the bottoms of the two sealing merging plates (223) overlap the bottom of the inner wall of the anti-theft base box (22).

5. The power transformer with an anti-theft mechanism according to claim 1, characterized in that: The two anti-theft trigger mechanisms (23) include mounting side plates (231), the two mounting side plates (231) are respectively fixedly connected to the left and right sides of the anti-theft base box (22), and the two mounting side plates (231) are each provided with three bolt holes (232) extending vertically through the two mounting side plates, and the inner circles of the bolt holes (232) are penetrated by pentagonal fixing bolts (233).

6. A power transformer with an anti-theft mechanism according to claim 5, characterized in that: An infrared emitting sensor (234) is fixedly mounted on the top of the two mounting side panels (231); a flip cover (235) is movably mounted on the side of the top of the two mounting side panels (231) away from the anti-theft base box (22); an infrared emitting receiver (236) is fixedly mounted on the top of the inner wall of the two flip covers (235); the infrared emitting receiver (236) and the infrared emitting sensor (234) are on the same vertical line; an adsorption magnetic strip (237) is fixedly mounted on the bottom of the flip cover (235); the adsorption magnetic strip (237) and the top of the mounting side panel (231) are mutually adsorbed.

7. The power transformer with an anti-theft mechanism according to claim 1, characterized in that: A control cabin (241) is provided on opposite sides of the two embedded plug boards (24), an anti-theft motor (242) is fixedly mounted on the inner wall of the control cabin (241), a threaded rod (243) is fixedly mounted on the output shaft of the anti-theft motor (242), and a limit plate is provided at the other end of the threaded rod (243).

8. The power transformer with an anti-theft mechanism according to claim 7, characterized in that: A movable plate (244) is threadedly mounted on the outer wall of the threaded rod (243); four side surfaces of the movable plate (244) are respectively overlapped with four side surfaces of the inner wall of the control cabin (241); and a plurality of conical plug rods (245) are evenly fixedly mounted up and down on a side of the movable plate (244) away from the anti-theft motor (242).