Power transformer with anti-theft function

Abstract

The invention discloses an electric transformer with an anti-theft function, which relates to the technical field of transformers, and comprises a mounting plate and a transformer body, and also comprises: an insertion device, a retaining device, a rotating device and a detection device; wherein the insertion device comprises an insertion rod, and the insertion rod is fixedly mounted on the top of the mounting plate, and the transformer body is arranged on the top of the mounting plate, and a cover plate is rotatably mounted on the surface of the transformer body, and a circular frame is fixedly mounted on the bottom of the inner wall of the transformer body, and a limit frame is fixedly mounted on the inner wall of the circular frame, and a groove is opened on the surface of the insertion rod, and a triangular block is slidably mounted on the inner wall of the groove; wherein the retaining device comprises a door lock, and the door lock is arranged on the surface of the cover plate. The invention has the characteristics of strong practicability and the transformer body cannot be disassembled from the outside, thereby improving the anti-theft effect of the transformer body.

Description

Technical Field

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

[0002] A transformer is an electrical device that changes AC voltage through electromagnetic induction. The utility model patent with patent announcement number CN207250274U relates to a transformer with an anti-theft function, including a transformer main body, wherein the transformer main body is composed of a transformer shell arranged on the top of the transformer main body and a fixed base at the bottom of the transformer main body. The transformer shell and the fixed base are tightly welded to the transformer main body, and a bolt hole is provided on one side of the fixed base, and the bolt hole is penetrated and arranged in the fixed base. This transformer with an anti-theft function adopts a strong pressure-resistant material as a manufacturing material and adopts a method of combining multiple anti-theft technologies to improve the practicality of the transformer with an anti-theft function. It has a shell with strong pressure resistance to prevent illegal disassembly of the transformer, and when it is illegally disassembled, the transformer will alarm, which can improve the anti-theft performance of the transformer and ensure the normal operation of the power system, and has broad application prospects.

[0003] In the above utility model, the fixed base can be fixed to the ground by long bolts to prevent the transformer body from being moved. A strong magnetic suction sheet is provided to enhance the sealing degree between the two anti-theft doors to prevent them from being opened. Since most transformers are installed by bolts and mounting frames, the transformer can be directly disassembled from the outside of the transformer for theft, thereby reducing the anti-theft effect of the transformer.

[0004] Therefore, it is necessary to have a power transformer with an anti-theft function, which has a strong design practicability and cannot be disassembled from the outside and improves the anti-theft effect of the transformer body. Summary of the invention

[0005] The object of the present invention is to provide a power transformer with an anti-theft function to solve the problems raised in the above background technology.

[0006] In order to solve the above technical problems, the present invention provides the following technical solutions: an electric transformer with anti-theft function, comprising a mounting plate and a transformer body, and also comprising: an insertion device, a retaining device, a rotating device and a detection device; wherein the insertion device comprises an insertion rod, the insertion rod is fixedly mounted on the top of the mounting plate, the transformer body is arranged on the top of the mounting plate, a cover plate is rotatably mounted on the surface of the transformer body, a circular frame is fixedly mounted on the bottom of the inner wall of the transformer body, a limited position frame is fixedly mounted on the inner wall of the circular frame, a groove is opened on the surface of the insertion rod, and a triangular block is slidably mounted on the inner wall of the groove; wherein the retaining device comprises a door lock, the door lock is arranged on the cover The cover is provided on the surface of the cover, a monitoring device is fixedly installed on the top of the cover, and a control switch is fixedly installed on one side of the cover close to the inside of the transformer body; wherein the rotating device comprises a supporting assembly and a limiting assembly, and the supporting assembly and the limiting assembly are both arranged at the bottom of the transformer body; wherein the detecting device comprises a displacement assembly and a release assembly, and the displacement assembly and the release assembly are both arranged on the surface of the circular frame, so that the triangular block can only be released by opening the transformer body, so that the transformer body cannot be disassembled from the outside of the transformer body, thereby improving the anti-theft effect of the transformer body, and at the same time, the monitoring device can take pictures when the cover is opened to record whether the person who opens it is a thief.

[0007] According to the above technical solution, a No. 1 spring is arranged between the triangular block and the groove, the control switch is electrically connected to the monitoring device, and the control switch is a push-type switch. When the control switch is pressed, it will be in a closed state to open the monitoring device.

[0008] According to the above technical solution, a push plate is slidably installed on the inner wall of the limit frame, and a control rod is fixedly installed on the side of the push plate away from the triangular block. A spring is arranged between the control rod and the circular frame. The triangular block can be pushed to move by the control rod and the push plate, so that the triangular block will release the limit on the transformer body.

[0009] According to the above technical solution, the supporting assembly includes an annular plate, which is rotatably sleeved on the bottom of the transformer body, a movable frame is slidably installed on the top of the mounting plate, and a supporting frame is hinged on the surface of the movable frame. The limiting assembly includes a locking rod, which is fixedly installed on the end of the operating rod away from the circular frame. A locking groove is provided on the surface of the annular plate, and a circular plate is fixedly installed on the surface of the limiting frame. When the operating rod moves, the locking rod will be driven to move, and the locking rod will be disengaged from the inside of the locking groove when it moves, so that the locking rod cannot limit the transformer body. The pushing plate will push the triangular block to contact the circular plate, so that the triangular block can slide inside the circular plate, and the transformer body can rotate to facilitate maintenance and adjustment of the transformer body.

[0010] According to the above technical solution, a No. 2 spring sheet is arranged between the movable frame and the mounting plate, and a torsion spring is arranged between the support frame and the movable frame. The movable frame can be supported by the No. 2 spring sheet, and the movable support frame can be supported by the torsion spring. The transformer body can be supported by the support frame and the movable frame, thereby improving the heat dissipation effect of the transformer body.

[0011] According to the above technical solution, the support frame is in contact with the annular plate, and an anti-slip rubber is provided on the top of the support frame. The anti-slip rubber can prevent the annular plate from sliding on the top of the support frame through the friction between the support frame and the annular plate.

[0012] According to the above technical solution, a deceleration assembly is provided on the surface of the transformer body, and the deceleration assembly includes an L-shaped plate, the L-shaped plate is slidably mounted on the top of the circular plate, a fixing rod is fixedly mounted on the surface of the L-shaped plate, an arc block is fixedly mounted on the surface of the fixing rod, a storage frame is fixedly mounted on the inner bottom of the transformer body, and a non-Newtonian fluid is provided inside the storage frame. The non-Newtonian fluid enables the fixing rod and the arc block to move slowly in an arc shape inside the storage frame, thereby reducing the rotation speed of the transformer body and preventing the transformer body from being damaged by pulling the cable due to excessive rotation speed of the transformer body.

[0013] According to the above technical solution, a slide groove is opened on the top of the storage frame, the fixing rod is located inside the slide groove, the arc block is located inside the storage frame, and a reset spring is arranged between the L-shaped plate and the circular plate, and the L-shaped plate can be driven to reset by the reset spring.

[0014] According to the above technical solution, the displacement assembly includes a sliding rod, which is slidably sleeved on the top of the circular frame, and a rubber wheel is rotatably installed on the top of the circular frame. A transmission gear is fixedly installed on the surface of the rubber wheel, and a moving rod is slidably sleeved on the top of the circular frame. A contact plate is hinged on the side of the moving rod close to the transmission gear, and an alarm device is fixedly installed on the top of the circular frame. A No. 3 spring plate is arranged between the contact plate and the moving rod, and an elastic member is arranged between the moving rod and the circular frame. When the transformer body moves upward, the insertion rod will move toward the outside of the transformer body, so that the sliding rod will move toward the inside of the circular frame. When the sliding rod moves downward, it will drive the rubber wheel to rotate, and when the rubber wheel rotates, it will drive the transmission gear to rotate. The rotation of the transmission gear will push the moving rod upward through the contact plate, and the alarm device will be triggered. After the oil inside the transformer body is stolen, the quality of the transformer body itself will be reduced, which will promptly trigger the alarm device to alarm. After the insertion rod enters the inside of the transformer body, a certain gap will be generated between the triangular block and the transformer body for the transformer body to move up and down.

[0015] According to the above technical solution, a limit block is fixedly installed on the surface of the moving rod, and the moving rod contacts the control end of the alarm device. The limit block is used for unidirectional limiting, so that the sliding rod moves upward, and the transmission gear can push the contact plate to rotate, so that the contact plate will not drive the moving rod to move downward to avoid affecting the alarm device.

[0016] Compared with the prior art, the beneficial effects achieved by the present invention are:

[0017] (1) The power transformer with anti-theft function is installed on the mounting plate so that the plug rod is inserted into the inside of the circular frame, so that the triangular block extends out of the groove, so that the triangular block restricts the plug rod inside the transformer body, so that the triangular block can only be released by opening the transformer body, so that the transformer body cannot be disassembled from the outside of the transformer body, thereby improving the anti-theft effect of the transformer body. At the same time, when the door lock is opened, the control switch will be squeezed so that the monitoring device can take a video of the thief to facilitate subsequent search.

[0018] (2) The power transformer with anti-theft function can limit the annular plate by inserting the locking rod into the inner part of the locking slot, so that the transformer body cannot rotate. The pushing plate pushes the triangular block to contact the circular plate, so that the triangular block can slide inside the circular plate, and the transformer body can rotate to facilitate maintenance and adjustment of the transformer body.

[0019] (3) In the power transformer with anti-theft function, when the triangular block moves inside the circular plate, it pushes the L-shaped plate and the fixing rod to move, so that the fixing rod drives the arc block to move inside the storage frame, and the arc frame pushes the non-Newtonian fluid inside the storage frame to move. The physical properties of the non-Newtonian fluid make it impossible for the arc block to move quickly, thereby reducing the rotation speed of the transformer body, thereby preventing the transformer body from being damaged by pulling the cable due to excessive rotation of the transformer body.

[0020] (4) In the power transformer with anti-theft function, when the plug rod moves inside the circular frame, it will drive the sliding rod to move, and when the sliding rod moves, it will drive the rubber wheel to rotate. After the oil inside the transformer body is stolen, the overall quality of the transformer body will be reduced, causing the moving frame and the support frame to push the transformer body to move upward slightly, causing the transmission gear to push the contact plate and the moving rod to move upward, so that the moving rod will release the pressure on the alarm device, and the alarm device will be triggered to remind the staff that someone has stolen. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

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

[0023] Figure 2 It is an overall cross-sectional schematic diagram of the present invention;

[0024] Figure 3 is a schematic diagram of a door lock of the present invention;

[0025] Figure 4 is a schematic diagram of a circular frame cross section of the present invention;

[0026] Figure 5 It is a schematic diagram of the interior of the circular frame of the present invention;

[0027] Figure 6 It is a schematic cross-sectional view of a storage frame of the present invention.

[0028] In the figure: 1. mounting plate; 2. transformer body; 3. cover plate; 41. plug rod; 42. circular frame; 43. triangular block; 44. limit frame; 45. push plate; 46. control lever; 47. door lock; 48. monitoring device; 49. control switch; 51. annular plate; 52. moving frame; 521. support frame; 53. positioning rod; 54. circular plate; 55. L-shaped plate; 56. fixing rod; 57. arc block; 58. storage frame; 61. sliding rod; 62. rubber wheel; 63. transmission gear; 64. moving rod; 65. contact plate; 66. alarm device; 67. limit block. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0030] See also Figure 1-6The present invention provides a technical solution: an electric transformer with an anti-theft function, comprising a mounting plate 1 and a transformer body 2, and also comprising: an insertion device, a retention device, a rotation device and a detection device; wherein the insertion device comprises an insertion rod 41, the insertion rod 41 is fixedly mounted on the top of the mounting plate 1, the transformer body 2 is arranged on the top of the mounting plate 1, a cover plate 3 is rotatably mounted on the surface of the transformer body 2, a circular frame 42 is fixedly mounted on the bottom of the inner wall of the transformer body 2, a limited position frame 44 is fixedly mounted on the inner wall of the circular frame 42, a groove is opened on the surface of the insertion rod 41, and a triangular block 43 is slidably mounted on the inner wall of the groove; wherein the retention device comprises a door lock 47, the door lock 47 is arranged on the surface of the cover plate 3, and the cover A monitoring device 48 is fixedly installed on the top of the plate 3, and a control switch 49 is fixedly installed on one side of the cover plate 3 close to the inside of the transformer body 2; wherein, the rotating device includes a supporting component and a limiting component, and the supporting component and the limiting component are both arranged at the bottom of the transformer body 2; wherein, the detection device includes a displacement component and a release component, and the displacement component and the release component are both arranged on the surface of the circular frame 42, so that the triangular block 43 can only be released by opening the transformer body 2, so that the transformer body 2 cannot be disassembled from the outside of the transformer body, thereby improving the anti-theft effect of the transformer body 2, and at the same time, the monitoring device 48 can take pictures when the cover plate 3 is opened to record whether the person who opens it is a thief.

[0031] A spring sheet No. 1 is arranged between the triangular block 43 and the groove, and the control switch 49 is electrically connected to the monitoring device 48. The control switch 49 is a push switch. When the control switch 49 is pressed, it is in a closed state to open the monitoring device 48.

[0032] A push plate 45 is slidably installed on the inner wall of the limit frame 44, and a control rod 46 is fixedly installed on the side of the push plate 45 away from the triangular block 43. A spring is arranged between the control rod 46 and the circular frame 42. The triangular block 43 can be pushed to move by the control rod 46 and the push plate 45, so that the triangular block 43 will release the limit on the transformer body 2.

[0033] The supporting assembly includes an annular plate 51, which is rotatably sleeved on the bottom of the transformer body 2. A movable frame 52 is slidably installed on the top of the mounting plate 1. A supporting frame 521 is hinged on the surface of the movable frame 52. The limiting assembly includes a locking rod 53, which is fixedly installed on the end of the operating rod 46 away from the circular frame 42. A locking groove is provided on the surface of the annular plate 51, and a circular plate 54 is fixedly installed on the surface of the limiting frame 44. When the operating rod 46 moves, the locking rod 53 will be driven to move. The locking rod 53 will move and will be detached from the inside of the locking groove, so that the locking rod 53 cannot limit the transformer body 2. The pushing plate 45 will push the triangular block 43 to contact the circular plate 54, so that the triangular block 43 can slide inside the circular plate 54, and the transformer body 2 can rotate to facilitate maintenance and adjustment of the transformer body 2.

[0034] A No. 2 spring sheet is arranged between the mobile frame 52 and the mounting plate 1, and a torsion spring is arranged between the support frame 521 and the mobile frame 52. The No. 2 spring sheet can support the mobile frame 52, and the torsion spring can support the mobile support frame 521. The transformer body 2 can be supported by the support frame 521 and the mobile frame 52, thereby improving the heat dissipation effect of the transformer body 2.

[0035] The support frame 521 is in contact with the annular plate 51 , and an anti-skid rubber is provided on the top of the support frame 521 . The anti-skid rubber can prevent the annular plate 51 from sliding on the top of the support frame 521 through the friction between the support frame 521 and the annular plate 51 .

[0036] A deceleration assembly is provided on the surface of the transformer body 2, and the deceleration assembly includes an L-shaped plate 55, which is slidably mounted on the top of the circular plate 54, a fixing rod 56 is fixedly mounted on the surface of the L-shaped plate 55, and an arc block 57 is fixedly mounted on the surface of the fixing rod 56. A storage frame 58 is fixedly mounted on the inner bottom of the transformer body 2, and a non-Newtonian fluid is provided inside the storage frame 58. The non-Newtonian fluid allows the fixing rod 56 and the arc block 57 to move slowly in the arc shape inside the storage frame 58, thereby reducing the rotation speed of the transformer body 2 and preventing the transformer body 2 from rotating too fast and pulling the cable to cause damage to the transformer body 2.

[0037] A slide groove is provided at the top of the storage frame 58, the fixing rod 56 is located inside the slide groove, the arc block 57 is located inside the storage frame 58, and a reset spring is provided between the L-shaped plate 55 and the circular plate 54, and the L-shaped plate 55 can be reset by the reset spring.

[0038] The displacement assembly includes a slide bar 61, which is slidably sleeved on the top of the circular frame 42. A rubber wheel 62 is rotatably installed on the top of the circular frame 42. A transmission gear 63 is fixedly installed on the surface of the rubber wheel 62. A moving rod 64 is slidably sleeved on the top of the circular frame 42. A contact plate 65 is hinged on the side of the moving rod 64 close to the transmission gear 63. An alarm device 66 is fixedly installed on the top of the circular frame 42. A No. 3 spring is arranged between the contact plate 65 and the moving rod 64. An elastic member is arranged between the moving rod 64 and the circular frame 42. When the transformer body 2 moves upward, the plug 41 will move toward the outside of the transformer body 2. When the sliding rod 61 moves downward, the rubber wheel 62 is driven to rotate. When the rubber wheel 62 rotates, the transmission gear 63 is driven to rotate. The transmission gear 63 rotates through the contact plate 65 to push the moving rod 64 to move upward, and the alarm device 66 is triggered. After the oil inside the transformer body 2 is stolen, the quality of the transformer body 2 itself is reduced, which will promptly trigger the alarm device 66 to alarm. After the insertion rod 41 enters the interior of the transformer body 2, a certain gap will be generated between the triangular block 43 and the transformer body 2 for the transformer body 2 to move up and down.

[0039] A limit block 67 is fixedly installed on the surface of the moving rod 64. The moving rod 64 contacts the control end of the alarm device 66. The limit block 67 performs one-way limiting, so that the slide rod 61 moves upward, and the transmission gear 63 can push the contact plate 65 to rotate, so that the contact plate 65 will not drive the moving rod 64 to move downward to avoid affecting the alarm device 66.

[0040] During operation, when the transformer body 2 is placed on the top of the mounting plate 1, the insertion rod 41 on the mounting plate 1 will be inserted into the transformer body 2 and the circular frame 42. When the insertion rod 41 enters the interior of the transformer body 2, it will drive the triangular block 43 to enter the interior of the transformer body 2. Under the elastic force of the No. 1 spring, the triangular block 43 will be pushed to move to the outside of the groove, so that the triangular block 43 will limit the insertion rod 41 inside the transformer body 2 and cannot be separated, thereby limiting the transformer body 2 on the mounting plate 1. When someone outside opens the door lock 47, the locking position of the door lock 47 will rotate when the door lock 47 is opened, so that the door lock 47 will squeeze the control switch 49, so that the control switch 49 will open the monitoring device 48, and the monitoring device 48 will take pictures around the cover plate 3.

[0041] When the transformer body 2 is placed on the mounting plate 1, the annular plate 51 at the bottom of the transformer body 2 will be at the top of the support frame 521 and contact the support frame 521. When the transformer body 2 needs to be rotated, the operating rod 46 is pushed to move toward the inside of the circular frame 42. When the operating rod 46 moves, it will push the push plate 45 to move. When the push plate 45 moves, it will push the triangular block 43 to move, so that the triangular block 43 pushes the first spring piece to move toward the inside of the groove, so that the triangular block 43 will move to the inside of the circular plate 54. When the operating rod 46 moves, it will drive the positioning rod 53 to move. The positioning rod 53 moves and disengages from the inside of the slot, so that the positioning rod 53 cannot limit the transformer body 2, so that the transformer body 2 can be rotated;

[0042] When the transformer body 2 rotates, the triangular block 43 will slide inside the circular plate 54, so that when the triangular block 43 slides inside the circular plate 54, it will push the L-shaped plate 55 to move. When the L-shaped plate 55 moves, it will push the fixed rod 56 and the arc block 57 to rotate. When the arc block 57 moves, it will push the non-Newtonian fluid inside the storage frame 58 to make the non-Newtonian fluid flow. Due to the physical properties of the non-Newtonian fluid, when the arc block 57 quickly pushes the non-Newtonian fluid, the non-Newtonian fluid will solidify, making the arc block 57 and the fixed rod 56 unable to move, so that the fixed rod 56 and the arc block 57 can only move slowly in the arc shape inside the storage frame 58, thereby reducing the rotation speed of the transformer body 2.

[0043] After the oil inside the transformer body 2 is stolen, the gravity of the transformer body 2 itself will decrease, so that the movable frame 52 and the support frame 521 will be pushed to move under the elastic force of the second spring sheet and the torsion spring, so that the movable frame 52 and the support frame 521 will push the transformer body 2 to move upward, and when the transformer body 2 moves upward, the insertion rod 41 will move toward the outside of the transformer body 2, so that the slide bar 61 will move toward the inside of the circular frame 42, and when the slide bar 61 moves downward, it will drive the rubber wheel 62 to rotate, and when the rubber wheel 62 rotates, it will drive the transmission gear 63 to rotate, and the transmission gear 63 rotates through the contact plate 65 to push the movable rod 64 to move upward, and the upward movement of the movable rod 64 will release the pressure on the alarm device 66, so that the alarm device 66 is triggered.

[0044] After the triangular block 43 is pushed completely into the groove by the operating rod 46 and the pushing plate 45 , the triangular block 43 will release the limit on the transformer body 2 and the insertion rod 41 , so that the transformer body 2 can be removed from the mounting plate 1 .

[0045] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0046] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A power transformer with anti-theft function, comprising a mounting plate (1) and a transformer body (2), characterized in that: Also includes: Insertion device, retention device, rotation device and detection device; The insertion device comprises an insertion rod (41), the insertion rod (41) being fixedly mounted on the top of the mounting plate (1), the transformer body (2) being arranged on the top of the mounting plate (1), a cover plate (3) being rotatably mounted on the surface of the transformer body (2), a circular frame (42) being fixedly mounted on the bottom of the inner wall of the transformer body (2), a limit frame (44) being fixedly mounted on the inner wall of the circular frame (42), a groove being provided on the surface of the insertion rod (41), and a triangular block (43) being slidably mounted on the inner wall of the groove; The retaining device comprises a door lock (47), the door lock (47) being arranged on the surface of the cover plate (3), a monitoring device (48) being fixedly mounted on the top of the cover plate (3), and a control switch (49) being fixedly mounted on one side of the cover plate (3) close to the inside of the transformer body (2); The rotating device comprises a supporting assembly and a limiting assembly, and both the supporting assembly and the limiting assembly are arranged at the bottom of the transformer body (2); The detection device comprises a displacement component and a release component, and the displacement component and the release component are both arranged on the surface of the circular frame (42); A first spring sheet is provided between the triangular block (43) and the groove, and the control switch (49) is electrically connected to the monitoring device (48); A push plate (45) is slidably mounted on the inner wall of the limit frame (44); a control rod (46) is fixedly mounted on a side of the push plate (45) away from the triangular block (43); and a spring is provided between the control rod (46) and the circular frame (42); The surface of the transformer body (2) is provided with a deceleration assembly, the deceleration assembly comprising an L-shaped plate (55), the L-shaped plate (55) being slidably mounted on the top of the circular plate (54), a fixing rod (56) being fixedly mounted on the surface of the L-shaped plate (55), an arc-shaped block (57) being fixedly mounted on the surface of the fixing rod (56), a storage frame (58) being fixedly mounted on the inner bottom of the transformer body (2), and a non-Newtonian fluid being arranged inside the storage frame (58).

2. The power transformer with anti-theft function according to claim 1, characterized in that: A slide groove is provided at the top of the storage frame (58), the fixing rod (56) is located inside the slide groove, the arc block (57) is located inside the storage frame (58), and a return spring is provided between the L-shaped plate (55) and the circular plate (54).

3. The power transformer with anti-theft function according to claim 1 is characterized in that: The displacement assembly comprises a sliding rod (61), the sliding rod (61) being slidably sleeved on the top of a circular frame (42), a rubber wheel (62) being rotatably mounted on the top of the circular frame (42), a transmission gear (63) being fixedly mounted on the surface of the rubber wheel (62), a moving rod (64) being slidably sleeved on the top of the circular frame (42), a contact plate (65) being hingedly mounted on one side of the moving rod (64) close to the transmission gear (63), an alarm device (66) being fixedly mounted on the top of the circular frame (42), a third spring sheet being arranged between the contact plate (65) and the moving rod (64), and an elastic member being arranged between the moving rod (64) and the circular frame (42).

4. The power transformer with anti-theft function according to claim 3 is characterized in that: A limit block (67) is fixedly mounted on the surface of the moving rod (64), and the moving rod (64) is in contact with a control end of the alarm device (66).

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