Electricity larceny prevention device applied to electricity meter and use method of electricity larceny prevention device

Abstract

The invention relates to an electricity stealing prevention device applied to an electricity meter and a use method thereof, the electricity stealing prevention device comprises a box body, a cover plate, a handle, a rotating assembly, a locking assembly and a control assembly, the front side of the box body is provided with a cavity for accommodating the electricity meter, the upper side of the cover plate is hinged to the front side of the box body, the handle is connected to the front side of the cover plate, and the rear side of the cover plate is connected with a first electromagnet; the front side of the box body is connected with an iron plate, the iron plate is arranged relative to the first electromagnet, the rotating assembly is connected to the upper side of the box body, the output end of the rotating assembly is connected with the cover plate and the locking assembly, and the control assembly is connected with the rotating assembly, the locking assembly and the first electromagnet. According to the design, when the first electromagnet is powered on, the first electromagnet has magnetism and is attracted with the iron plate, so that the cover plate is prevented from being opened, meanwhile, the rotating assembly is locked through the locking assembly, even if an electricity stealing molecule passes through a tool to cause failure of the control assembly, the rotating assembly still cannot work, the cover plate cannot be opened, and safety is high.

Description

Technical Field

[0001] The present invention relates to the field of electric power technology, and in particular to an anti-electricity theft device applied to an electric meter and a use method thereof. Background Art

[0002] Electricity is an energy source that uses electrical energy as a driving force. It was discovered in the 1870s. The discovery and application of electricity set off the second industrialization boom and became one of the three scientific and technological revolutions that have occurred in the world since the 18th century in human history. Since then, technology has changed people's lives. The large-scale power system that appeared in the 20th century is one of the most important achievements in the history of human engineering science. It is an electricity production and consumption system composed of power generation, transmission, transformation, distribution and power consumption. It converts primary energy in nature into electricity through mechanical energy devices, and then supplies electricity to various users through transmission, transformation and distribution. In order to facilitate the understanding of users' electricity consumption, electric meters are needed. However, existing electric meters are generally installed outdoors and most of them are not equipped with protective mechanisms. The box door is mainly fixed by locking, which is easy to be opened and has low security. It is easy to be stolen, thereby causing losses to people's property. Summary of the invention

[0003] The purpose of the present invention is to overcome the defects and problems of low safety of electric meters in the prior art, and to provide an anti-electricity theft device applied to an electric meter with higher safety and a method of using the same.

[0004] To achieve the above purpose, the technical solution of the present invention is: an anti-electricity theft device applied to an electric meter, comprising a box, a cover, a handle, a rotating assembly, a locking assembly, and a control assembly, wherein a cavity for accommodating an electric meter is opened on the front side of the box, the upper side of the cover is hinged to the front side of the box, the handle is connected to the front side of the cover, the rear side of the cover is connected to a first electromagnet, the front side of the box is connected to an iron plate, the iron plate is arranged relative to the first electromagnet, the rotating assembly is connected to the upper side of the box and the output end is respectively connected to the cover and the locking assembly, and the control assembly is connected to the rotating assembly, the locking assembly, and the first electromagnet;

[0005] The rotating assembly is used to drive the cover plate to rotate on the box body;

[0006] The locking assembly is used to lock the rotating assembly to stop it from rotating;

[0007] The control component is used to control the on and off of the first electromagnet, and control the operation of the rotating component and the locking component.

[0008] The front side of the box body is connected to a rotating seat, a rotating shaft is rotatably connected inside the rotating seat, a rotating groove matching the rotating seat is opened on the upper side of the cover plate, both ends of the rotating shaft pass through the rotating seat, the cover plate is sleeved on both ends of the rotating shaft, and the output end of the rotating component is connected to one end of the rotating shaft.

[0009] The rotating assembly includes an outer shell, a driving motor, a driving gear, and a driven gear. The outer shell is connected to the outside of the box, and the driving gear and the driven gear are located in the outer shell. The driving motor is installed on the upper side of the box, and the output shaft passes through the outer shell and is connected to the driving gear. One end of the rotating shaft passes through the outer shell and is connected to the driven gear. The driven gear is meshed and connected to the driving gear. The driving motor is connected to the control assembly.

[0010] The locking assembly includes a second electromagnet, a magnet block, a hook, a tension spring, and a mounting rod, wherein the mounting rod is connected to the inner wall of the outer shell, one end of the hook is rotatably connected to the mounting rod, the magnet block is connected to the other end of the hook, the second electromagnet is connected to the inner wall of the outer shell and arranged relative to the magnet block, the other end of the hook abuts against the gear teeth of the driven gear, one end of the tension spring is connected to the hook, and the other end is connected to the side wall of the outer shell, the control assembly is connected to the second electromagnet, and the magnetism of the magnet block is the same as the magnetism of the second electromagnet when it is energized;

[0011] The control component is used to control the on and off of power to the second electromagnet.

[0012] The inner side wall of the box body is provided with a contact piece and an alarm, the inner side of the cover plate is provided with a groove for accommodating the contact piece, and the contact piece surrounds the inner side wall of the box body and is connected with the alarm.

[0013] A safety component is installed in the cavity, and the safety component includes a safety shell, a safety plate, a cylinder, a baffle, and an elastic member. A slide groove is opened in the safety shell along the length direction, and a connecting groove is opened in the safety shell along the height direction, and the connecting groove is communicated with the slide groove. The electric meter is installed in the connecting groove, and the safety plate is slidably connected to the slide groove along the length direction of the safety shell. The safety plate is U-shaped and the inner bottom wall is arranged relative to the electric meter. The cylinder is connected to the inner top wall of the connecting groove, the baffle is connected to the output end of the cylinder and is slidably connected to the connecting groove, one end of the elastic member is connected to the inner side wall of the connecting groove, and the other end is connected to the two side walls of the safety plate, and the cylinder is connected to the control component.

[0014] The outer top wall of the safety plate is connected with a push plate.

[0015] The outer sides of the two side walls of the safety plate are connected with first elastic teeth, the side walls of the slide slot are connected with second elastic teeth, and the second elastic teeth are buckled and connected with the first elastic teeth.

[0016] The control component includes a control box, a screen, multiple buttons and a control unit. The control box is installed on the front side of the cover plate, the screen is embedded in the control box, and multiple buttons are movably installed in the control box. The control unit is connected to the screen, buttons, rotating component, locking component, and first electromagnet.

[0017] A method for using an anti-electricity theft device applied to an electric meter, the method comprising the following steps:

[0018] By pressing the button to input the password, the control unit determines whether the input password is the same as the set password. If they are the same, the control unit controls the first electromagnet to cut off the power, and at the same time controls the locking component to unlock and the rotating component to drive the cover plate to rotate on the box body, so that the box body opens; if they are not the same, the control unit sends a signal to the screen, and the screen displays that the password is wrong;

[0019] When the electricity thief is about to steal electricity and causes the control component to fail, the locking component locks the rotating component, making the rotating component unable to work and the box unable to open.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] 1. In the anti-electricity theft device and its use method applied to an electric meter, the cover is opened and closed by a rotating assembly. When the first electromagnet is energized, the first electromagnet attracts the iron plate with magnetism, thereby preventing the cover from being opened. At the same time, a locking assembly is used to lock the rotating assembly. Even if the electricity thief causes the control assembly to fail through a tool, the rotating assembly still cannot work, so that the cover cannot be opened, and the safety is high. Therefore, the present invention has a simple structure and high safety.

[0022] 2. In the anti-electricity theft device and its use method applied to the electric meter of the present invention, the gear meshing method is adopted, and the gear is driven to rotate by the motor, thereby driving the cover plate to rotate on the rotating seat; by setting the magnet block and the second electromagnet, the second electromagnet will be adsorbed by the magnet block when it is not powered on, thereby causing one end of the hook to rotate toward the magnet block and abut against the driven gear, so that the driven gear cannot rotate, and then the cover plate cannot be opened. When the second electromagnet is powered on, due to the same magnetism as the magnet block, one end of the hook will be away from the magnet block, so that the driven gear can continue to rotate, so that the cover plate can be opened; by setting the contact sheet, when the electricity thief wants to pry open the cover plate with a tool, the tool will contact the contact sheet to cause the contact sheet to move, thereby triggering the alarm to alarm. Therefore, the present invention has high reliability and high safety.

[0023] 3. In the anti-electricity theft device applied to the electric meter and the use method thereof, double protection is achieved by setting a safety component to cooperate with an external locking component. When the external cover is opened, since the electric meter is set in a safety shell, the safety plate needs to be pushed to expose the electric meter. Since a cylinder is set in the safety shell, when the control component fails, the initial position of the baffle will block the safety plate, making it impossible to move the safety plate, thereby preventing the electric meter from being stolen after being exposed. When the electric meter needs to be used, the control component will control the cylinder to work and drive the baffle to move up, so that the safety plate can move in the slide slot and the connecting slot. Therefore, the present invention has high reliability and high safety.

[0024] 4. In the anti-electricity theft device applied to the electric meter and the use method thereof, the push plate is provided to facilitate pushing and pulling the safety plate, and the use is convenient; the elastic latch teeth are provided to make the safety plate only slide inward in the initial state, thereby improving the safety of the device. Therefore, the present invention is convenient to use and has high safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 The invention is a schematic structural diagram of an anti-electricity theft device applied to an electric meter.

[0026] Figure 2 It is a structural schematic diagram of the box body, safety component and rotating component in the present invention.

[0027] Figure 3 It is a structural schematic diagram of the cover plate in the present invention.

[0028] Figure 4 It is a partial structural schematic diagram of the rotating assembly, cover plate and box body in the present invention.

[0029] Figure 5 It is a cross-sectional schematic diagram of the rotating assembly in the present invention.

[0030] Figure 6 It is a schematic diagram of the structure of the safety component in the present invention.

[0031] Figure 7 It is a cross-sectional schematic diagram of the safety component in the present invention.

[0032] Figure 8 It is a structural schematic diagram of the cylinder, baffle and electric meter in the present invention.

[0033] Fig. 9 It is a cross-sectional schematic diagram of the safety panel, the safety shell and the electric meter in the present invention.

[0034] Fig.10 It is a structural schematic diagram of the safety plate in the present invention.

[0035] Fig.11 It is a partial structural schematic diagram of the control component in the present invention.

[0036] Fig.12 It is a connection block diagram of the control component, the rotating component, the locking component and the safety component in the present invention.

[0037] In the figure: box body 1, cavity 11, iron plate 12, rotating seat 13, rotating shaft 14, cover plate 2, first electromagnet 21, groove 22, rotating groove 23, handle 3, rotating component 4, outer shell 41, driving motor 42, driving gear 43, driven gear 44, locking component 5, second electromagnet 51, magnet block 52, hook 53, tension spring 54, mounting rod 55, control component 6, control box 61, screen 62, button 63, control unit 64, safety component 7, safety shell 71, safety plate 72, cylinder 73, baffle 74, elastic member 75, slide groove 76, connecting groove 77, push plate 78, first elastic tooth 79, second elastic tooth 710, contact piece 8, alarm 9, electric meter 10. DETAILED DESCRIPTION

[0038] The present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0039] Embodiment 1:

[0040] See also Figures 1 to 4 , an anti-electricity theft device for an electric meter, comprising a box body 1, a cover plate 2, a handle 3, a rotating assembly 4, a locking assembly 5, and a control assembly 6, wherein the front side of the box body 1 is provided with a cavity 11 for accommodating an electric meter 10, the upper side of the cover plate 2 is hinged to the front side of the box body 1, the handle 3 is connected to the front side of the cover plate 2, the rear side of the cover plate 2 is connected to a first electromagnet 21, the front side of the box body 1 is connected to an iron plate 12, the iron plate 12 is arranged relative to the first electromagnet 21, the rotating assembly 4 is connected to the upper side of the box body 1 The side and output end are respectively connected with the cover plate 2 and the locking component 5, the control component 6 is connected with the rotating component 4, the locking component 5, and the first electromagnet 21, the front side of the box body 1 is connected with a rotating seat 13, and the rotating seat 13 is rotatably connected with a rotating shaft 14, the upper side of the cover plate 2 is provided with a rotating groove 23 matching the rotating seat 13, both ends of the rotating shaft 14 pass through the rotating seat 13, the cover plate 2 is sleeved on both ends of the rotating shaft 14, and the output end of the rotating component 4 is connected to one end of the rotating shaft 14.

[0041] The rotating assembly 4 is used to drive the cover plate 2 to rotate on the box body 1;

[0042] The locking assembly 5 is used to lock the rotating assembly 4 to stop it from rotating;

[0043] The control component 6 is used to control the first electromagnet 21 to be powered on and off, and to control the operation of the rotating component 4 and the locking component 5.

[0044] In this embodiment, the locking component 5 is initially in an unlocked state, the rotating component 4 can rotate, and the first electromagnet 21 remains energized, so that the first electromagnet 21 is magnetically adsorbed to the iron plate 12, and the cover 2 is closed. When the control component 6 is powered off or fails, the locking component 5 is in a locked state, the rotating component 4 cannot rotate, and the cover 2 continues to be closed.

[0045] Embodiment 2:

[0046] The basic content is the same as that of Example 1, except that:

[0047] See also Figure 4 and Figure 5 The rotating assembly 4 includes an outer shell 41, a driving motor 42, a driving gear 43, and a driven gear 44. The outer shell 41 is connected to the outside of the box 1, and the driving gear 43 and the driven gear 44 are located in the outer shell 41. The driving motor 42 is installed on the upper side of the box 1 and the output shaft passes through the outer shell 41 and is connected to the driving gear 43. One end of the rotating shaft 14 passes through the outer shell 41 and is connected to the driven gear 44. The driven gear 44 is meshed and connected to the driving gear 43. The driving motor 42 is connected to the control assembly 6;

[0048] The locking assembly 5 includes a second electromagnet 51, a magnet block 52, a hook 53, a tension spring 54, and a mounting rod 55. The mounting rod 55 is connected to the inner wall of the outer shell 41. One end of the hook 53 is rotatably connected to the mounting rod 55. The magnet block 52 is connected to the other end of the hook 53. The second electromagnet 51 is connected to the inner wall of the outer shell 41 and is arranged relative to the magnet block 52. The other end of the hook 53 abuts against the gear teeth of the driven gear 44. One end of the tension spring 54 is connected to the hook 53 and the other end is connected to the side wall of the outer shell 41. The control assembly 6 is connected to the second electromagnet 51. An iron core is provided in the second electromagnet 51. The magnetism of the magnet block 52 is the same as that of the second electromagnet 51 when it is energized.

[0049] The control component 6 is used to control the second electromagnet 51 to be powered on or off.

[0050] In this embodiment, when the cover plate 2 can be opened, the second electromagnet 51 is energized, and the second electromagnet 51 repels the magnet block 52 to rotate the hook 53, and the driven gear 44 can rotate, and the driving motor 42 drives the driving gear 43 to rotate, and then drives the driven gear 44 to rotate to open the cover plate 2;

[0051] When the cover 2 is closed, the second electromagnet 51 is powered off, and the magnet block 52 attracts the second electromagnet 51 to drive the hook 53 to rotate until it contacts the driven gear 44. The driven gear 44 is stuck and cannot rotate, and the cover 2 cannot be opened.

[0052] Embodiment 3:

[0053] The basic content is the same as that of Example 1, except that:

[0054] See also Figures 6 to 10 The cavity 11 is provided with a safety assembly 7, which includes a safety shell 71, a safety plate 72, a cylinder 73, a baffle 74, and an elastic member 75. A slide groove 76 is provided in the safety shell 71 along the length direction, and a connecting groove 77 is provided in the safety shell 71 along the height direction. The connecting groove 77 is connected to the slide groove 76. The electric meter 10 is installed in the connecting groove 77. The safety plate 72 is slidably connected to the slide groove 76 along the length direction of the safety shell 71. The safety plate 72 is U-shaped and the inner bottom wall is arranged relative to the electric meter 10. The cylinder 73 is connected to the inner top wall of the connecting groove 77. The baffle 74 is connected to the output end of the cylinder 73 and is slidably connected to the connecting groove 77. One end of the elastic member 75 is connected to the inner side wall of the connecting groove 77 and the other end is connected to the two side walls of the safety plate 72. The cylinder 73 is connected to the control assembly 6. A push plate 78 is connected to the outer top wall of the safety plate 72. The outer sides of the two side walls of the safety plate 72 are connected with first elastic teeth 79 , and the side walls of the slide slot 76 are connected with second elastic teeth 710 , which are buckled and connected to the first elastic teeth 79 .

[0055] In this embodiment, when the electric meter 10 needs to be used, the baffle 74 is driven to move upward by controlling the cylinder 73, so that the safety plate 72 can slide in the slide groove 76 and the connecting groove 77, and the safety plate 72 is pushed to move into the connecting groove 77 by the push plate 78, and then the safety plate 72 is pulled upward to expose the electric meter 10; when the electric meter 10 needs to be protected, the baffle 74 is driven to move downward by controlling the cylinder 73 to block the connecting groove 77, so that the safety plate 72 cannot move into the connecting groove 77, and at the same time, the first elastic latch tooth 79 and the second elastic latch tooth 710 are engaged with each other, and the safety plate 72 cannot move outward.

[0056] Embodiment 4:

[0057] The basic content is the same as that of Example 1, except that:

[0058] See also Fig.11 and Fig.12The control component 6 includes a control box 61, a screen 62, multiple buttons 63 and a control unit 64. The control box 61 is installed on the front side of the cover plate 2. The screen 62 is embedded in the control box 61. Multiple buttons 63 are movably installed on the control box 61. The control unit 64 is connected to the screen 62, the button 63, the rotating component 4, the locking component 5, and the first electromagnet 21. The inner wall of the box body 1 is provided with a contact piece 8 and an alarm 9. The inner side of the cover plate 2 is provided with a groove 22 for accommodating the contact piece 8. The contact piece 8 surrounds the inner wall of the box body 1 and is connected to the alarm 9.

[0059] In this embodiment, the alarm device 9 includes a buzzer and a sensing circuit. After the contact piece 8 moves, it will contact the sensing circuit, making the sensing circuit conductive and the buzzer triggering an alarm.

[0060] Embodiment 5:

[0061] A method for using the anti-electricity theft device applied to an electric meter according to Embodiment 4, the method comprising the following steps:

[0062] By pressing the button 63 to input the password, the control unit 64 determines whether the input password is the same as the set password. If they are the same, the control unit 64 controls the first electromagnet 21 to cut off the power, and at the same time the control unit 64 controls the locking component 5 to unlock and the rotating component 4 to drive the cover plate 2 to rotate on the box body 1, so that the box body 1 opens; if they are not the same, the control unit 64 sends a signal to the screen 62, and the screen 62 displays that the password is wrong;

[0063] When the electricity thief is about to steal electricity and causes the control component 6 to fail, the locking component 5 locks the rotating component 4, making the rotating component 4 unable to work and the box body 1 unable to open.

[0064] In this embodiment, a switch may be provided in the sensing circuit, and the switch may be connected to the control unit 64. When electricity theft occurs, the control unit 64 controls the switch to close, so that the sensing circuit is turned on and the buzzer triggers an alarm.

Claims

1. An anti-electricity theft device applied to an electric meter, characterized in that: The utility model comprises a box body (1), a cover plate (2), a handle (3), a rotating assembly (4), a locking assembly (5), and a control assembly (6); the front side of the box body (1) is provided with a cavity (11) for accommodating an electric meter (10); the upper side of the cover plate (2) is hinged to the front side of the box body (1); the handle (3) is connected to the front side of the cover plate (2); the rear side of the cover plate (2) is connected to a first electromagnet (21); the front side of the box body (1) is connected to an iron plate (12); the iron plate (12) is arranged relative to the first electromagnet (21); the rotating assembly (4) is connected to the upper side of the box body (1) and the output end is respectively connected to the cover plate (2) and the locking assembly (5); the control assembly (6) is connected to the rotating assembly (4), the locking assembly (5), and the first electromagnet (21); The rotating assembly (4) is used to drive the cover plate (2) to rotate on the box body (1); The locking assembly (5) is used to lock the rotating assembly (4) to stop it from rotating; The control component (6) is used to control the on and off of power to the first electromagnet (21), and to control the operation of the rotating component (4) and the locking component (5).

2. The anti-electricity theft device applied to an electric meter according to claim 1, characterized in that: The front side of the box body (1) is connected to a rotating seat (13), a rotating shaft (14) is rotatably connected inside the rotating seat (13), a rotating groove (23) matching the rotating seat (13) is opened on the upper side of the cover plate (2), both ends of the rotating shaft (14) pass through the rotating seat (13), the cover plate (2) is sleeved on both ends of the rotating shaft (14), and the output end of the rotating assembly (4) is connected to one end of the rotating shaft (14).

3. The anti-electricity theft device applied to an electric meter according to claim 2, characterized in that: The rotating assembly (4) comprises an outer shell (41), a driving motor (42), a driving gear (43), and a driven gear (44); the outer shell (41) is connected to the outer side of the housing (1); the driving gear (43) and the driven gear (44) are located inside the outer shell (41); the driving motor (42) is installed on the upper side of the housing (1); the output shaft of the driving motor (42) passes through the outer shell (41) and is connected to the driving gear (43); one end of the rotating shaft (14) passes through the outer shell (41) and is connected to the driven gear (44); the driven gear (44) is meshedly connected to the driving gear (43); and the driving motor (42) is connected to the control assembly (6).

4. The anti-electricity theft device applied to an electric meter according to claim 3, characterized in that: The locking assembly (5) comprises a second electromagnet (51), a magnet block (52), a hook (53), a tension spring (54), and a mounting rod (55); the mounting rod (55) is connected to the inner wall of the outer shell (41); one end of the hook (53) is rotatably connected to the mounting rod (55); the magnet block (52) is connected to the other end of the hook (53); the second electromagnet (51) is connected to the inner wall of the outer shell (41) and is arranged relative to the magnet block (52); the other end of the hook (53) abuts against the gear teeth of the driven gear (44); one end of the tension spring (54) is connected to the hook (53) and the other end is connected to the side wall of the outer shell (41); the control assembly (6) is connected to the second electromagnet (51); the magnetism of the magnet block (52) is the same as the magnetism of the second electromagnet (51) when it is energized; The control component (6) is used to control the on and off of power to the second electromagnet (51).

5. The anti-electricity theft device applied to an electric meter according to claim 1, characterized in that: The inner wall of the box body (1) is provided with a contact piece (8) and an alarm (9), and the inner side of the cover plate (2) is provided with a groove (22) for accommodating the contact piece (8); the contact piece (8) surrounds the inner wall of the box body (1) and is connected to the alarm (9).

6. The anti-electricity theft device applied to an electric meter according to claim 1, characterized in that: A safety component (7) is installed in the cavity (11), and the safety component (7) comprises a safety shell (71), a safety plate (72), a cylinder (73), a baffle (74), and an elastic member (75). A slide groove (76) is provided in the safety shell (71) along the length direction, and a connecting groove (77) is provided in the safety shell (71) along the height direction. The connecting groove (77) is connected to the slide groove (76). The electric meter (10) is installed in the connecting groove (77). The safety plate (72) is provided along the length direction of the safety shell (71). The safety plate (72) is U-shaped and its inner bottom wall is arranged relative to the electric meter (10). The cylinder (73) is connected to the inner top wall of the connecting groove (77). The baffle (74) is connected to the output end of the cylinder (73) and is slidably connected to the connecting groove (77). One end of the elastic member (75) is connected to the inner side wall of the connecting groove (77) and the other end is connected to the two side walls of the safety plate (72). The cylinder (73) is connected to the control component (6).

7. The anti-electricity theft device applied to an electric meter according to claim 6, characterized in that: The outer top wall of the safety plate (72) is connected with a push plate (78).

8. The anti-electricity theft device applied to an electric meter according to claim 6, characterized in that: The outer sides of the two side walls of the safety plate (72) are connected to first elastic latch teeth (79), the side walls of the slide groove (76) are connected to second elastic latch teeth (710), and the second elastic latch teeth (710) are buckled and connected to the first elastic latch teeth (79).

9. The anti-electricity theft device applied to an electric meter according to claim 1, characterized in that: The control assembly (6) comprises a control box (61), a screen (62), a plurality of buttons (63) and a control unit (64); the control box (61) is mounted on the front side of the cover plate (2); the screen (62) is embedded in the control box (61); the plurality of buttons (63) are movably mounted on the control box (61); and the control unit (64) is connected to the screen (62), the buttons (63), the rotating assembly (4), the locking assembly (5) and the first electromagnet (21).

10. A method for using the anti-electricity theft device applied to an electric meter as claimed in claim 9, characterized in that: The method of use comprises the following steps: By pressing a button (63) to input a password, the control unit (64) determines whether the input password is the same as the set password. If they are the same, the control unit (64) controls the first electromagnet (21) to be powered off, and at the same time the control unit (64) controls the locking component (5) to be unlocked and controls the rotating component (4) to work to drive the cover plate (2) to rotate on the box body (1), so that the box body (1) is opened; if they are not the same, the control unit (64) sends a signal to the screen (62), and the screen (62) displays that the password is wrong; When the electricity thief is about to steal electricity and causes the control component (6) to fail, the locking component (5) locks the rotating component (4), making the rotating component (4) unable to work and the box (1) unable to open.

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