A self-locking anti-theft transformer

Abstract

This invention relates to the field of power equipment technology, and in particular to a self-locking anti-theft transformer, comprising a protective box, an alarm fixed at the bottom of the protective box, a base fixed at the bottom of the inner part of the protective box, a door at the front of the protective box, a moving component installed between the door and the base, a support plate on the upper surface of the rear end of the base, a self-locking control mechanism installed between the support plate and the base, and a toothed plate fixed on the upper surface of the support plate. This invention relies on the self-locking control mechanism to form an effective and tight self-locking effect on the transformer body. Once self-locked, it cannot be released except by force or special tools. Simultaneously, when the gravity sensor detects a change in gravity, it transmits a signal to the alarm to sound an alarm, effectively protecting the transformer. Combined with the moving component and the locking component, the transformer body can be freely moved in and out, and the transformer body can be quickly disassembled and assembled, facilitating the maintenance of the transformer body and rapid emergency operation in case of emergency.

Description

Technical Field

[0001] This invention relates to the field of power equipment technology, and in particular to a self-locking anti-theft transformer. Background Technology

[0002] In modern society, transformers are one of the important pieces of equipment in the power supply and distribution systems of industrial and mining enterprises and civil buildings. The main components of a transformer are the primary coil, the secondary coil, and the iron core. Currently, the structure of an oil-immersed transformer is that the transformer core, consisting of the iron core and the coil, is placed inside the transformer body. After opening the top cover of the transformer body, it is easy to pull out the iron core and the coil. This has led to some criminals stealing the iron core and the coil for economic gain, affecting the normal operation of the power supply and distribution system and causing property damage.

[0003] In existing technologies, most anti-theft transformers are fixed and sealed inside a protective box to achieve the anti-theft effect. However, the process of fixing and disassembling the anti-theft transformer requires too much manual intervention, making it difficult to achieve a self-locking effect that locks the transformer as soon as it is placed in the box. This is quite inconvenient. Furthermore, when the transformer needs to be inspected, it is necessary to enter the box, which is often too small and inconvenient for maintenance. In addition, in case of an emergency, it is difficult to quickly remove the transformer, which may lead to serious consequences.

[0004] To address the aforementioned technical shortcomings, a solution is proposed. Summary of the Invention

[0005] To overcome the aforementioned deficiencies of the prior art, this utility model provides a self-locking anti-theft transformer. When the transformer is moved into the protective box through the self-locking control mechanism, a self-locking effect is formed, requiring minimal intervention from personnel. With the addition of a moving component, the transformer can be quickly moved out for easy maintenance. Furthermore, with the addition of a locking component, the transformer can be further secured, and it is also convenient for easy disassembly in emergency situations, thus solving the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a self-locking anti-theft transformer, comprising a protective box, an alarm fixed at the bottom of the protective box, and a base fixed at the bottom of the inner part of the protective box. A door is provided at the front end of the protective box, and a moving component is installed between the door and the base. A support plate is provided on the upper surface of the rear end of the base, and a self-locking control mechanism is installed between the support plate and the base. A toothed plate is fixed on the upper surface of the support plate, and two connecting screws are symmetrically rotatably connected to the inner sides of the support plate. A connecting port is opened at the front end of each connecting screw. A moving plate is sleeved on the outer layer of the two connecting screws. The moving plate is located on the upper surface of the support plate, and an mounting plate is provided on the upper surface of the moving plate. A locking component is installed between the moving plate and the mounting plate, and a transformer body is fixed on the upper surface of the mounting plate.

[0007] Furthermore, the self-locking control mechanism includes four rectangular guide grooves equidistantly spaced inside the base. A guide rod is fixed inside the guide groove, and a guide slider is sleeved on the outer layer of the guide rod. A spring is fixed on one side of the guide slider and sleeved on the outside of the guide rod. A gravity sensor is installed inside the guide slider and is electrically connected to the alarm. A first locking block is fixed to the bottom of one of the guide sliders and slidably connected inside the base. A connecting rod is rotatably connected to the top of the guide slider, penetrating and extending to the outside of the guide groove. The tops of all four connecting rods are rotatably connected to the bottom of the support plate.

[0008] Furthermore, two sliding sleeves are symmetrically fixed on both sides of the support plate. A sliding rod is connected through the inside of the sliding sleeve. A third lead screw is rotatably connected to the inside of the base inside the sliding rod. A lifting block is fixed to the outer layer of the bottom of the sliding rod. A first bevel gear is fixed to the bottom of the third lead screw. A second bevel gear is provided below the first bevel gear. A rotating shaft rotatably connected to the inside of the two second bevel gears is connected through the inside of the two second bevel gears. One side of the rotating shaft extends through and to the outside of the protective box. A special-shaped insertion port is opened on the side of the rotating shaft.

[0009] Furthermore, the moving component includes two second lead screws symmetrically rotatably connected to both sides of the upper surface of the base. The front end of the second lead screw passes through and extends to the outside of the base and is fixed with a synchronous pulley. An embedded block is fixed at the rear end of the second lead screw at the corresponding connection port position. A synchronous belt is rotatably connected between the two synchronous pulleys, and a motor is fixed at the front end of one of the synchronous pulleys.

[0010] Furthermore, a worm gear is sleeved on the outer layer of the second lead screw, and a worm wheel rotatably connected to the inside of the protective box is provided on one side of the worm gear. The first lead screw is fixed on the upper surface of the worm wheel, and a threaded sleeve is sleeved on the outer layer of the first lead screw. One side of each of the two threaded sleeves is fixed to the box door.

[0011] Furthermore, a through groove is provided at the top of the protective box corresponding to the position of the box door, a connecting block is fixed at the bottom of the box door, a first slot is provided on one side of the connecting block corresponding to the position of the first locking block, and a groove is provided on the upper surface of the base corresponding to the position of the connecting block.

[0012] Furthermore, the engaging assembly includes four rectangular fixed disks fixed to the upper surface of the lifting block. The bottom of each fixed disk is fixed with a rotating disk rotatably connected to the inside of the lifting block. The bottom of each rotating disk is fixed with a gear rotatably connected to the bottom of the engaging assembly. The bottom of the engaging assembly has a slot at the position corresponding to the toothed plate.

[0013] Furthermore, two second locking blocks are symmetrically slidably connected to the inner sides of the fixed disk. The bottom of the second locking block is fixed with a limiting slider that penetrates through and extends to the outside of the rotating disk. An arc-shaped groove is opened inside the rotating disk at the position corresponding to the limiting slider.

[0014] Furthermore, a guide groove is provided at the bottom of the mounting plate corresponding to the position of the fixing plate, and a second slot is provided inside the guide groove corresponding to the position of the second locking block.

[0015] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0016] 1. In this invention, a self-locking control mechanism is set up to control the self-locking of the transformer body. When the transformer body is in the position of the support plate, the support plate is lowered due to its own weight. During the descent of the support plate, the guide slider and spring drive the first locking block to move into the first locking slot, forming a lock. The entire protective box is sealed and cannot be opened except by violent force or by specially configured opening tools. When it is necessary to release the self-locking state, the special configured tool and the irregular insertion port opened on the side of the rotating shaft are used to lock and rotate the rotating shaft. The rotating shaft, together with the first bevel gear and the second bevel gear, drives the third lead screw to rotate, thereby driving the slide rod to rise. The rise of the slide rod, together with the lifting block and the sliding sleeve, drives the support plate to rise until it moves to the same horizontal line as the upper surface of the base. At this time, the self-locking state is released, and the transformer body can be moved out by the moving component. The self-locking control is simple and does not require much intervention from the staff. Moreover, when the transformer is moved by violent force, the gravity sensor inside the moving block sends a signal to the alarm to sound an alarm, effectively and more strictly protecting the transformer body.

[0017] 2. In this invention, a moving component is used to control the movement of the transformer body. When the transformer body needs to be inspected, the starting motor, in conjunction with the synchronous belt and synchronous pulley, drives the two second lead screws to rotate. The rotation of the second lead screws, in conjunction with the connecting lead screw, drives the moving plate to move. At the same time, the rotation of the second lead screws, in conjunction with the worm gear, drives the first lead screw to rotate. The rotation of the first lead screw, in conjunction with the screw sleeve, drives the tank door to rise. The two work together, and as the tank door opens, the moving plate moves the transformer body out of the tank, and then the transformer body can be inspected. The tank door body has a flat design with no gripping points, making it difficult to open by external force, thus providing further protection for the transformer.

[0018] 3. The present invention is equipped with a locking assembly. When the moving plate moves to the position of the support plate, the toothed plate drives the gear to rotate. The rotation of the gear drives the rotating disk to rotate, which in turn, in conjunction with the arc-shaped sliding groove and the limiting slider, drives the second locking block to move out of the fixed disk and into the second locking block. Thus, the mounting plate and the moving plate are locked together and fixed, making them difficult to disassemble. When the moving plate moves out of the support plate, the locking assembly runs in reverse, and the second locking block and the second locking groove are released from the locking state. In case of emergency, there is no need to disassemble the transformer body. The transformer body can be quickly removed along with the mounting plate, avoiding accidents caused by time constraints due to complicated disassembly.

[0019] In summary, this invention relies on a self-locking control mechanism to create an effective and tight self-locking effect on the transformer body. Once the self-locking is complete, it cannot be released except by violent destruction or special tools. At the same time, when the gravity sensor detects a change in gravity, it transmits a signal to the alarm to sound an alarm, effectively protecting the transformer. With the addition of moving and locking components, the transformer body can be freely moved in and out, and the transformer body can be quickly disassembled and assembled, facilitating the maintenance of the transformer body and rapid emergency operation in case of emergency. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0021] Figure 2 This is a schematic diagram of the internal structure of the protective box of the present invention;

[0022] Figure 3 This is a combined view of the box door and the first lead screw of the present invention;

[0023] Figure 4 This is a combined view of the second lead screw and the first lead screw of the present invention;

[0024] Figure 5 This is a schematic diagram of the self-locking control mechanism of the present invention;

[0025] Figure 6 This is a schematic diagram of the internal structure of the base of the present invention;

[0026] Figure 7 This is an anatomical diagram of the support plate, the movable plate, and the movable plate of the present invention;

[0027] Figure 8 This is a schematic diagram of the structure of the bottom of the movable plate of the present invention;

[0028] Figure 9 This is a schematic diagram of the engagement assembly of the present invention.

[0029] Reference numerals: 1. Protective box; 2. Box door; 3. Base; 4. Motor; 5. Synchronous belt; 6. Synchronous pulley; 7. Moving assembly; 8. Self-locking control mechanism; 9. Through slot; 10. Alarm; 11. First lead screw; 12. Moving plate; 13. Slot; 14. Second lead screw; 15. Support plate; 16. Transformer body; 17. Mounting plate; 18. Lifting block; 19. First locking block; 20. Rotating shaft; 21. First bevel gear; 22. Second bevel gear; 23. Irregular insertion port; 24. Connection port; 25. Slide rod; 26. Engagement 27. Lead screw; 28. Sliding sleeve; 29. ​​Connecting block; 30. First slot; 31. Spring; 32. Guide slider; 33. Guide slide rod; 34. Connecting rod; 35. Guide groove; 36. Screw sleeve; 37. Worm gear; 38. Embedded block; 39. Guide groove; 40. Second slot; 41. Engaging assembly; 42. Tooth plate; 43. Gear; 44. Slot; 45. Limit slider; 46. Fixed plate; 47. Second locking block; 48. Arc-shaped groove; 49. Rotating plate; 50. Third lead screw; 51. Gravity sensor. Detailed Implementation

[0030] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention. Example

[0031] This embodiment addresses the problem that most existing anti-theft transformers are fixed and sealed inside a protective box to achieve the anti-theft effect. However, the process of fixing and disassembling the anti-theft transformer requires excessive manual intervention, making it difficult to achieve a self-locking effect that is formed as soon as the transformer is placed in the box, which is quite inconvenient overall.

[0032] like Figure 1-4As shown, a self-locking anti-theft transformer includes a protective box 1. An alarm 10 is fixed to the bottom of the protective box 1, and a base 3 is fixed to the bottom of the interior of the protective box 1. A door 2 is provided at the front of the protective box 1. The door 2 is designed without a handle protrusion, making it difficult to lift the door 2 by external force. A moving component 7 is installed between the door 2 and the base 3. The moving component 7 includes two second lead screws 14 symmetrically rotatably connected to both sides of the upper surface of the base 3. The front end of the second lead screw 14 passes through and extends to the outside of the base 3 and is fixed with a synchronous pulley 6. Furthermore, an embedded block 38 is fixed at the rear end of the second lead screw 14 corresponding to the position of the connecting port 24. In the initial state, the second lead screw 14 is engaged with the connecting port 24 through the embedded block 38. At this time, the rotation of the second lead screw 14 will drive the connecting lead screw 26 to rotate. When the second lead screw 14 and the connecting lead screw 26 drive the moving plate 12 to move completely to the upper surface of the support plate 15, the embedded block 38 and the connecting port 24 are exactly located at the top and bottom respectively. A synchronous belt 5 is rotatably connected between the two synchronous pulleys 6, and a motor 4 is fixed at the front end of one of the synchronous pulleys 6.

[0033] The outer layer of the second lead screw 14 is fitted with a worm gear 36. A worm wheel 37 is rotatably connected to the inside of the protective box 1 on one side of the worm gear 36. The upper surface of the worm wheel 37 is fixed with the first lead screw 11. A slot is opened on the inner side of the protective box 1 corresponding to the position of the first lead screw 11. A threaded sleeve 35 is fitted on the outer layer of the first lead screw 11. One side of each of the two threaded sleeves 35 is fixed to the box door 2. A through groove 9 is opened at the top of the protective box 1 corresponding to the position of the box door 2. When the box door 2 is raised, it moves out of the protective box 1 through the through groove 9. A connecting block 28 is fixed at the bottom of the box door 2. A first slot 29 is opened on one side of the connecting block 28 corresponding to the position of the first locking block 19. A slot 13 is opened on the upper surface of the base 3 corresponding to the position of the connecting block 28.

[0034] When protecting the transformer body 16, the transformer body 16 is fixed to the mounting plate 17. The starting motor 4, together with the synchronous belt 5 and the synchronous pulley 6, drives the second lead screw 14 to rotate. The rotation of the second lead screw 14 drives the moving plate 12 to move. The moving plate 12 drives the transformer body 16 to move into the protective box 1. At the same time, when the second lead screw 14 rotates, it works with the worm gear 36 and the worm wheel 37 to drive the first lead screw 11 to rotate. The rotation of the first lead screw 11 works with the screw sleeve 35 to drive the base 3 to descend. When the transformer body 16 is at the position of the slide bar 25, the base 3 falls completely. At the same time, the connecting block 28 is inserted into the slot 13 to form a lock. Example

[0035] This embodiment addresses the problem in the prior art where, when anti-theft transformers need maintenance, personnel must enter the enclosure, which is often quite cramped and inconvenient for maintenance.

[0036] like Figure 5-6As shown, the embodiment is a self-locking anti-theft transformer. A support plate 15 is provided on the upper surface of the rear end of the base 3. A self-locking control mechanism 8 is installed between the support plate 15 and the base 3. The self-locking control mechanism 8 includes four guide grooves 34 that are rectangularly and equidistantly opened inside the base 3. A guide rod 32 is fixed inside the guide groove 34. A guide slider 31 is sleeved on the outer layer of the guide rod 32. A spring 30 sleeved on the outside of the guide rod 32 is fixed on one side of the guide slider 31. A gravity sensor 51 is installed inside the guide slider 31. The gravity sensor 51 is preset according to the transformer body 16. When the transformer body 16 is damaged or a part is missing, causing a change in the gravity detected by the gravity sensor 51, the gravity sensor 51 will send a signal to the alarm 10. The gravity sensor 51 is electrically connected to the alarm 10.

[0037] One of the guide sliders 31 has a first locking block 19 fixed at its bottom and slidably connected to the inside of the base 3. The top of the guide slider 31 is rotatably connected to a connecting rod 33 that passes through and extends to the outside of the guide groove 34. The tops of all four connecting rods 33 are rotatably connected to the bottom of the support plate 15.

[0038] Two sliding sleeves 27 are symmetrically fixed on both sides of the support plate 15. A sliding rod 25 is connected through the inside of the sliding sleeve 27. A third lead screw 50 is rotatably connected to the inside of the base 3 inside the sliding rod 25. The sliding rod 25 has an internal thread that matches the third lead screw 50. A lifting block 18 is fixed to the bottom outer layer of the sliding rod 25. A first bevel gear 21 is fixed to the bottom of the third lead screw 50. A second bevel gear 22 is provided below the first bevel gear 21. A rotating shaft 20 rotatably connected to the inside of the base 3 is connected through the inside of the two second bevel gears 22. One side of the rotating shaft 20 extends through and to the outside of the protective box 1. A special-shaped insertion port 23 is opened on the side of the rotating shaft 20.

[0039] When the transformer body 16 moves into the protective box 1 and is located at the position of the support plate 15, the support plate 15 is pressed downward by the gravity of the transformer body 16. The downward movement of the support plate 15, together with the connecting rod 33, drives the guide slider 31 to move along the guide slide rod 32. One of the guide sliders 31 moves and drives the first locking block 19 to move and insert into the first locking slot 29. At this time, the first locking slot 29 and the first locking block 19 form a locking engagement. At this time, the box door 2 is locked, that is, the protective box 1 is in a sealed state.

[0040] When it is necessary to unlock, a special tool that matches the special-shaped socket 23 drives the rotating shaft 20 to rotate. The rotation of the rotating shaft 20, in conjunction with the first bevel gear 21 and the second bevel gear 22, drives the third lead screw 50 to rotate. The rotation of the third lead screw 50 drives the slide bar 25 to rise. When the slide bar 25 rises, it drives the support plate 15 to rise through the lifting block 18 and the sliding sleeve 27. As the support plate 15 rises, the first locking block 19 moves out of the first locking slot 29. At this time, the box door 2 is unlocked, and the transformer body 16 can be moved out by starting the motor 4.

[0041] When the protective box 1 is violently damaged, the transformer body 16 is damaged, or the gravity detected by the gravity sensor 51 changes due to missing parts, the gravity sensor 51 will transmit a signal to the alarm 10. The alarm 10 will sound an alarm and alert the staff so that the staff can react quickly to protect the transformer body 16. Example

[0042] This embodiment addresses the problem in the prior art where it is difficult to quickly remove the anti-theft transformer in the event of an emergency, leading to serious consequences.

[0043] like Figure 7-9 As shown, the embodiment is a self-locking anti-theft transformer. A toothed plate 42 is fixed to the upper surface of a support plate 15. Two connecting screws 26 are symmetrically rotatably connected to the inner sides of the support plate 15. A connecting port 24 is provided at the front end of each connecting screw 26. A movable plate 12 is sleeved on the outer layer of both connecting screws 26. The movable plate 12 is located on the upper surface of the support plate 15. Limit plates are provided at both ends of the upper surface of the movable plate 12 to prevent the mounting plate 17 from being damaged due to inertia during movement and stopping. In the event of slippage, a mounting plate 17 is provided on the upper surface of the movable plate 12, and a locking assembly 41 is installed between the movable plate 12 and the mounting plate 17. The locking assembly 41 includes four fixed disks 46 that are rectangularly fixed to the upper surface of the lifting block 18. A rotating disk 49 that is rotatably connected to the inside of the lifting block 18 is fixed to the bottom of the fixed disk 46. A gear 43 that is rotatably connected to the bottom of the locking assembly 41 is fixed to the bottom of the rotating disk 49. A slot 44 is provided at the bottom of the locking assembly 41 corresponding to the position of the toothed plate 42.

[0044] Two second locking blocks 47 are symmetrically slidably connected on both sides of the interior of the fixed disk 46. A limiting slider 45 is fixed at the bottom of the second locking block 47 and extends through and to the outside of the rotating disk 49. An arc-shaped groove 48 is opened inside the rotating disk 49 at the position corresponding to the limiting slider 45. A guide groove 39 is opened at the bottom of the mounting plate 17 at the position corresponding to the fixed disk 46. When the second locking block 47 is disengaged from the second locking groove 40, the mounting plate 17 can be removed by the guide groove 39. A second locking groove 40 is opened inside the guide groove 39 at the position corresponding to the second locking block 47. A transformer body 16 is fixed on the upper surface of the mounting plate 17.

[0045] When the movable plate 12 moves to the position of the support plate 15, the gear 43 at the bottom of the movable plate 12 is driven by the toothed plate 42 and rotates. The rotation of the gear 43 drives the rotating disk 49 to rotate. The rotation of the rotating disk 49, in conjunction with the arc-shaped sliding groove 48 and the limiting slider 45, drives the second locking block 47 to move out of the fixed disk 46 and into the second locking groove 40 to form a lock. At this time, the mounting plate 17 and the movable plate 12 are locked together, that is, the transformer body 16 is completely fixed inside the protective box 1. Unless it is forcibly disassembled, the transformer body 16 cannot be moved.

[0046] When the transformer body 16 needs to be moved out for maintenance, the moving plate 12 moves out and drives the second locking block 47 to retract into the fixed plate 46 through the toothed plate 42 and gear 43, thereby releasing the locking state between the second locking block 47 and the second locking slot 40. After the transformer body 16 is moved out of the protective box 1, the transformer body 16 can be disassembled by directly removing the mounting plate 17, so as to deal with some emergency situations and avoid irreparable consequences caused by excessive time loss due to disassembly.

[0047] The working process and principle of this invention:

[0048] Step 1: When protecting the transformer body 16, fix the transformer body 16 to the mounting plate 17, start the motor 4 and drive the second lead screw 14 to rotate with the synchronous belt 5 and synchronous pulley 6. The rotation of the second lead screw 14 drives the moving plate 12 to move. The moving plate 12 drives the transformer body 16 to move into the protective box 1. At the same time, when the second lead screw 14 rotates, it drives the first lead screw 11 to rotate with the worm gear 36 and worm wheel 37. The rotation of the first lead screw 11 drives the base 3 to descend with the screw sleeve 35. When the transformer body 16 is at the position of the slide bar 25, the base 3 falls completely. At the same time, the connecting block 28 is inserted into the slot 13 to form a lock.

[0049] Step 2: When the transformer body 16 moves into the protective box 1 and is located at the position of the support plate 15, the support plate 15 is pressed downward by the gravity of the transformer body 16. The downward movement of the support plate 15, together with the connecting rod 33, drives the guide slider 31 to move along the guide slide rod 32. One of the guide sliders 31 moves and drives the first locking block 19 to move and insert into the first locking slot 29. At this time, the first locking slot 29 and the first locking block 19 form a locking engagement. At this time, the box door 2 is locked, that is, the protective box 1 is in a sealed state.

[0050] When it is necessary to unlock, a special tool that matches the special-shaped socket 23 drives the rotating shaft 20 to rotate. The rotation of the rotating shaft 20, in conjunction with the first bevel gear 21 and the second bevel gear 22, drives the third lead screw 50 to rotate. The rotation of the third lead screw 50 drives the slide bar 25 to rise. When the slide bar 25 rises, it drives the support plate 15 to rise through the lifting block 18 and the sliding sleeve 27. As the support plate 15 rises, the first locking block 19 moves out of the first locking slot 29. At this time, the box door 2 is unlocked, and the transformer body 16 can be moved out by starting the motor 4.

[0051] When the protective box 1 is violently damaged, the transformer body 16 is damaged, or the gravity detected by the gravity sensor 51 changes due to missing parts, the gravity sensor 51 will transmit a signal to the alarm 10. The alarm 10 will sound an alarm and alert the staff so that the staff can react quickly to protect the transformer body 16.

[0052] Step 3: When the moving plate 12 moves to the position of the support plate 15, the gear 43 at the bottom of the moving plate 12 is driven by the toothed plate 42 and rotates. The rotation of the gear 43 drives the rotating disk 49 to rotate. The rotation of the rotating disk 49, in conjunction with the arc-shaped sliding groove 48 and the limiting slider 45, drives the second locking block 47 to move out of the fixed disk 46 and into the second locking groove 40 to form a lock. At this time, the mounting plate 17 and the moving plate 12 are locked together, that is, the transformer body 16 is completely fixed inside the protective box 1. Unless it is forcibly disassembled, the transformer body 16 cannot be moved.

[0053] When the transformer body 16 needs to be moved out for maintenance, the moving plate 12 moves out and drives the second locking block 47 to retract into the fixed plate 46 through the toothed plate 42 and gear 43, thereby releasing the locking state between the second locking block 47 and the second locking slot 40. After the transformer body 16 is moved out of the protective box 1, the transformer body 16 can be disassembled by directly removing the mounting plate 17, so as to deal with some emergency situations and avoid irreparable consequences caused by excessive time loss due to disassembly.

[0054] In summary, the moving component 7 moves the transformer body 16 into or out of the protective box 1, while simultaneously controlling the opening and closing of the box door 2, achieving convenient control. This allows for quick protection and maintenance of the transformer body 16. The box door 2 is designed without handles, making it difficult to lift by force. Combined with the self-locking control mechanism 8, the entire protective box 1 is self-locked and sealed, making it difficult to open without force or special tools. Furthermore, the gravity sensor 51 detects gravity changes in the transformer body 16. When the gravity sensor 51 detects a change in gravity during non-maintenance periods, it sends a signal to the alarm 10, thus creating a warning effect. Finally, the locking component 41 further locks the protected transformer body 16, making it difficult to disassemble. This also facilitates quick disassembly of the unprotected transformer body 16 in emergencies, greatly reducing the time required for disassembly.

[0055] The above are merely preferred embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A self-locking anti-theft transformer, comprising a protective box (1), characterized in that, An alarm (10) is fixed to the bottom of the protective box (1), and a base (3) is fixed to the bottom of the interior of the protective box (1). A door (2) is provided at the front end of the protective box (1). A moving component (7) is installed between the door (2) and the base (3). A support plate (15) is provided on the upper surface of the rear end of the base (3). A self-locking control mechanism (8) is installed between the support plate (15) and the base (3). A toothed plate (42) is fixed on the upper surface of the support plate (15). The two sides of the inner side are symmetrically connected by two connecting screws (26). The front end of the connecting screws (26) is provided with a connecting port (24). The outer layer of the two connecting screws (26) is sleeved with a moving plate (12). The moving plate (12) is located on the upper surface of the support plate (15). The upper surface of the moving plate (12) is provided with a mounting plate (17), and a locking assembly (41) is installed between the moving plate (12) and the mounting plate (17). The upper surface of the mounting plate (17) is fixed with a transformer body (16). The self-locking control mechanism (8) includes four guide grooves (34) that are rectangularly and equidistantly opened inside the base (3). A guide rod (32) is fixed inside the guide groove (34). A guide slider (31) is sleeved on the outer layer of the guide rod (32). A spring (30) is fixed on one side of the guide slider (31) and sleeved on the outside of the guide rod (32). A gravity sensor (51) is installed inside the guide slider (31). The gravity sensor (51) is electrically connected to the alarm (10). A first locking block (19) is fixed at the bottom of one of the guide sliders (31) and slidably connected inside the base (3). A connecting rod (33) is rotatably connected to the top of the guide slider (31) and extends through and to the outside of the guide groove (34). The tops of the four connecting rods (33) are rotatably connected to the bottom of the support plate (15). Two sliding sleeves (27) are symmetrically fixed on both sides of the support plate (15). A sliding rod (25) is connected through the inside of the sliding sleeve (27). A third lead screw (50) is rotatably connected to the inside of the base (3) inside the sliding rod (25). A lifting block (18) is fixed on the outer bottom layer of the sliding rod (25). A first bevel gear (21) is fixed on the bottom of the third lead screw (50). A second bevel gear (22) is provided below the first bevel gear (21). A rotating shaft (20) rotatably connected to the inside of the two second bevel gears (22) is connected through the inside of the base (3). One side of the rotating shaft (20) extends through and to the outside of the protective box (1). A special-shaped insertion port (23) is opened on the side of the rotating shaft (20).

2. A self-locking anti-theft transformer according to claim 1, characterized in that, The moving component (7) includes two second lead screws (14) symmetrically rotatably connected to both sides of the upper surface of the base (3). The front end of the second lead screw (14) passes through and extends to the outside of the base (3) and is fixed with a synchronous pulley (6). An embedded block (38) is fixed at the rear end of the second lead screw (14) corresponding to the connection port (24). A synchronous belt (5) is rotatably connected between the two synchronous pulleys (6). A motor (4) is fixed at the front end of one of the synchronous pulleys (6).

3. A self-locking anti-theft transformer according to claim 2, characterized in that, The second lead screw (14) is fitted with a worm (36) on its outer layer. A worm wheel (37) is provided on one side of the worm (36) and is rotatably connected to the inside of the protective box (1). The upper surface of the worm wheel (37) is fixed with a first lead screw (11). The outer layer of the first lead screw (11) is fitted with a screw sleeve (35). One side of each of the two screw sleeves (35) is fixed to the box door (2).

4. A self-locking anti-theft transformer according to claim 3, characterized in that, The top of the protective box (1) is provided with a through groove (9) corresponding to the position of the box door (2). The bottom of the box door (2) is fixed with a connecting block (28). One side of the connecting block (28) is provided with a first slot (29) corresponding to the position of the first card block (19). The upper surface of the base (3) is provided with a slot (13) corresponding to the position of the connecting block (28).

5. A self-locking anti-theft transformer according to claim 4, characterized in that, The engaging assembly (41) includes four fixed disks (46) that are rectangularly fixed to the upper surface of the lifting block (18). The bottom of the fixed disk (46) is fixed with a rotating disk (49) that is rotatably connected to the inside of the lifting block (18). The bottom of the rotating disk (49) is fixed with a gear (43) that is rotatably connected to the bottom of the engaging assembly (41). The bottom of the engaging assembly (41) is provided with a slot (44) at the position corresponding to the toothed plate (42).

6. A self-locking anti-theft transformer according to claim 5, characterized in that, The fixed disk (46) has two second locking blocks (47) symmetrically slidably connected on both sides inside. The bottom of the second locking block (47) is fixed with a limiting slider (45) that penetrates through and extends to the outside of the rotating disk (49). The rotating disk (49) has an arc-shaped groove (48) at the position corresponding to the limiting slider (45).

7. A self-locking anti-theft transformer according to claim 1, characterized in that, The bottom of the mounting plate (17) is provided with a guide groove (39) at the position corresponding to the fixed plate (46), and the inside of the guide groove (39) is provided with a second slot (40) at the position corresponding to the second card block (47).

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