Intelligent anti-theft alarm device for box-type substation

Abstract

This invention provides an intelligent anti-theft alarm device for prefabricated substations, belonging to the technical field of anti-theft alarm devices. It solves the technical problems of existing prefabricated substation anti-theft alarm devices failing to achieve multiple anti-theft effects when the door is forcibly opened, failing to physically stop criminal activity, and failing to provide psychological deterrence through alarms. An intelligent anti-theft alarm device for prefabricated substations includes a cabinet, a base fixedly connected to the bottom of the cabinet, a hinge rotatably connected to one side of the cabinet, and a door fixedly connected to the other side of the hinge. By incorporating an opening and closing lock and an audible and visual alarm, the substation will sound an alarm when forcibly opened, achieving psychological deterrence. Furthermore, by connecting a controller to a servo motor and an electric push rod, the opening and closing lock will be re-locked internally when forcibly opened, thus preventing the interior from being unprotected after the door is opened.

Description

Technical Field

[0001] This invention belongs to the technical field of anti-theft alarm devices, and relates to an anti-theft device for a prefabricated substation, particularly an intelligent anti-theft alarm device for a prefabricated substation. Background Technology

[0002] Prefabricated substations, as key nodes in power distribution, are widely distributed in urban and rural areas. Because they contain valuable components such as copper and transformers, they are often targets for thieves. Theft not only causes direct economic losses but also leads to large-scale power outages, seriously affecting social production and people's lives.

[0003] A search revealed a Chinese patent document disclosing an anti-theft prefabricated substation system [Application No.: CN201510222553.6; Publication No.: CN104794836A]. This anti-theft prefabricated substation system includes: a prefabricated substation and a ring main unit connected to the prefabricated substation via electrical wires buried under a power manhole cover. The system includes: several image capture devices, respectively installed inside the prefabricated substation and / or the ring main unit, which capture image information of the person opening the prefabricated substation and / or the ring main unit; a manhole cover displacement monitoring device, installed under the power manhole cover, used to monitor the displacement status of the power manhole cover; and a processing unit, connected to the image capture devices and the manhole cover displacement monitoring device, used to generate an alarm signal based on the image information and / or displacement status.

[0004] Although the anti-theft box-type substation disclosed in this patent can issue an alarm signal when the manhole cover moves or the cabinet door is opened, and capture the physical characteristics of the intruder, this anti-theft box-type substation can only deter and photograph when theft occurs, and only record the criminal process for post-crime accountability. It cannot effectively prevent intruders from opening the cabinet door, and cannot physically stop the criminal behavior in real time. Summary of the Invention

[0005] The purpose of this invention is to address the aforementioned problems in existing technologies by proposing an intelligent anti-theft alarm device for prefabricated substations. The technical problem this invention aims to solve is: how to achieve multiple anti-theft effects for prefabricated substations when doors are forcibly opened, ensuring the physical cessation of criminal activity, and providing psychological deterrence through alarms.

[0006] The objective of this invention can be achieved through the following technical solutions:

[0007] A box-type substation intelligent anti-theft alarm device includes a box body, a base fixedly connected to the bottom of the box body, a hinge rotatably connected to one side of the box body, and a door fixedly connected to the other side of the hinge. An audible and visual alarm is fixedly installed on the surface of the door, and an opening and closing lock is fixedly installed between the two doors. A display screen is embedded in the surface of the door, and a pressure block is fixedly installed on the top of the door. A pull rope is fixedly connected to the bottom of the pressure block, and a base block is fixedly installed at the other end of the pull rope. A wire mesh is fixedly installed on the surface of the base block, and a winding drum is wound around the top of the wire mesh and rotatably connected to the inner top of the box body.

[0008] Two guide columns are fixedly installed on the inner bottom wall of the box, and a bottom block is slidably connected to the outer wall of the guide columns. A column is arranged parallel to the outer side of the guide columns, and the column is fixedly installed on the inner bottom wall of the box. A top frame is fixedly installed on the top of the column.

[0009] The top frame is rotatably connected to a first pulley, and a pull rope is attached to the outer wall of the first pulley. The outer wall of the pull rope is also attached to a second pulley, which is rotatably connected to the inside of the top frame and located on one side of the first pulley. A lower pulley is provided below the second pulley and is rotatably located on the top of the column.

[0010] The pull rope coincides with the central axis of the wire mesh, and the top side of the pull rope is attached to the first pulley. The outer wall of the first pulley coincides with the central axis of the wire mesh, and a rope cutting unit is provided on the side of the first pulley away from the second pulley. A locking component is connected to the lower part of the rope cutting unit.

[0011] The rope cutting unit includes a fixing plate, which is fixedly connected to the inside of the top frame, and the inside of the fixing plate has a through hole for accommodating the pull rope.

[0012] The top frame is fixedly connected to a connecting plate, and a telescopic spring is fixedly installed on the outer wall of the connecting plate. A wedge block is fixedly installed on the other end of the telescopic spring, and the wedge block is slidably connected to the inner wall of the top frame. A cutting blade is fixedly installed on the end of the wedge block near the pull rope, and the cutting blade is located on the surface of the fixed plate.

[0013] The end of the wedge block away from the cutting blade is engaged with a squeezing wedge block, and the bottom end of the squeezing wedge block is fixedly installed with an upper rack, which is slidably connected to the inner wall of the box.

[0014] The working principle of this invention is as follows: In normal operation, the user opens the enclosure door using the lock. A pull rope is fixedly connected to the top of the door, causing the bottom block to move upwards. Once the door is open, the bottom block pulls the wire mesh upwards, opening it into the substation. When the lock is forcibly opened, a vibration sensor detects impact and vibration, triggering an alarm with sound and light. Simultaneously, the controller powers the servo motor, causing the gear train to rotate. The upper and lower racks mesh on the outer wall of the gear train, moving towards each other. A wedge block is fixedly connected to the top of the upper rack. The wedge block's contact with the wedge causes the cutting blade to move towards the limit block, cutting the pull rope and preventing the bottom block from being pulled upwards when the door is opened, thus ensuring the protective effect of the wire mesh. Simultaneously, the lower rack... The meshing connection between the rack and the gear column causes the lower rack to move the lower connecting plate upwards, allowing the limiting post to precisely insert inside the square groove. The multiple limiting posts ensure the limiting effect on the bottom block. Simultaneously, energizing the electric push rod causes the support plate to move along the sliding shaft as the push rod rises and falls. This causes the baffle to rotate via the rotating shaft, opening the baffles on both sides of the limiting post above the square groove, thus limiting the bottom block and ensuring the locking effect on the wire mesh. This ensures the bottom block and wire mesh protect the substation, achieving a locking mechanism that becomes stronger the more it is pried open. Furthermore, by placing the limiting posts on the rear side of the wire mesh, forced disassembly is avoided. Users can control the electric push rod for protection, achieving both electronic and physical protection, and physically stopping criminal activity in real time. This completes the working principle of the intelligent anti-theft alarm device for the box-type substation.

[0015] The outer side of the lower pulley is rotatably connected to a pulley seat, and the inside of the pulley seat is fixedly connected to a rotating rod, which is rotatably connected to the top of the column.

[0016] The pulley seat is installed at the top of the column on the side away from the hinge.

[0017] With the above structure, the pulley seat rotates at the top of the column, allowing the bottom block to move via a pull rope when the box door is open normally. Furthermore, the pulley seat adjusts with the opening angle of the box door as the pulley pulls down, ensuring the pulling force on the pull rope when the box door is opened and guaranteeing the lifespan of the pull rope. The structure is simple and highly practical.

[0018] Limiting blocks are fixedly installed on the surface of the fixing plate, and the limiting blocks and the cutting blade are located on both sides of the pull rope.

[0019] With the above structure, the wedge block drives the cutting blade to move on the surface of the fixed plate to achieve the limit by setting the limiting block. Moreover, the setting of the limiting block and the two sides of the cutting blade ensures that the cutting blade bears the force on the pull rope, thus ensuring the cutting effect of the cutting blade on the pull rope.

[0020] The wedge block and the extrusion wedge block are connected by a wedge-shaped fit, and the bottom end of the extrusion wedge block is set with a wedge structure. The extrusion wedge block is located inside the top frame, and the extrusion wedge block and the upper rack are set in an "L" shape.

[0021] By adopting the above structure, the wedge-shaped block and the squeezing wedge are wedge-shaped and fit together. When the upper rack drives the squeezing wedge to move upward, the wedge-shaped block drives the cutting blade to move towards the pull rope side, so that the cutting blade cuts the pull rope. This avoids the simultaneous opening of the wire mesh when the box door is opened, and allows the box door to be locked again after being forcibly opened, thus realizing the secondary locking of the box-type substation.

[0022] The locking assembly includes a lower rack, which is slidably connected to the inner wall of the housing. A gear column is meshed with the outer wall of the lower rack, and the gear column is rotatably connected between the column and the housing. An upper rack is also meshed with the outer wall of the gear column on the side away from the lower rack.

[0023] The bottom end of the lower rack is fixedly installed with a lower connecting plate, and the lower connecting plate is slidably connected to the lower inner part of the box. Multiple limiting posts are fixedly installed on the surface of the lower connecting plate.

[0024] The lower rack and the lower connecting plate are arranged in an "L" shape.

[0025] With the above structure, the lower rack and lower connecting plate, under the action of the gear column and the lower rack, allow the gear column to rotate synchronously and drive the lower rack and upper rack to move inward. This causes the lower rack to drive the lower connecting plate to move upward. By fixing multiple limiting posts on the surface of the lower connecting plate, the limiting posts can be inserted into the bottom block from below, facilitating secondary locking of the wire mesh through the bottom block and ensuring the physical prevention of violent acts by the transformer box.

[0026] The outer wall of the column is rotatably connected to a gear column, which is driven by a servo motor, and the servo motor is fixedly installed inside the column.

[0027] The servo motor is electrically connected to an audible and visual alarm, an opening and closing lock, and a display screen;

[0028] A camera is embedded within the display screen.

[0029] With the above structure, a vibration sensor is installed on the lock. When the lock body is subjected to abnormal behavior such as prying or knocking, the vibration sensor takes pictures through the built-in camera on the display screen and sounds an alarm through the sound and light alarm, thus achieving psychological deterrence. Moreover, by connecting the controller to the servo motor and the electric push rod, the box door is physically locked, making the transformer box more secure the more it is pried open, thus physically preventing theft.

[0030] The limiting post is rectangular in shape, and the bottom of the box has a cavity to accommodate the limiting post. The limiting post and the box door are respectively located on both sides of the wire mesh.

[0031] The bottom of the box has multiple square slots that can accommodate the insertion of limiting posts, and the limiting posts are equipped with limiting units inside.

[0032] By adopting the above structure, the connection between the bottom block and the box is ensured when the limiting post moves upward by setting a square groove inside the box. Moreover, by setting a cavity at the bottom of the box, the storage effect of the limiting post under normal conditions is ensured, and the limiting post is prevented from interfering with the normal opening of the wire mesh.

[0033] The limiting unit includes an electric push rod, which is fixedly installed on the inner top wall of the limiting post. The output end of the electric push rod is fixedly installed with a support plate, which is slidably connected inside the limiting post.

[0034] The tray is slidably connected to a sliding shaft inside, and a baffle is fixedly installed on the outer wall of the sliding shaft. The sliding shaft is located below the baffle. A rotating shaft is rotatably installed in the middle of the baffle, and the rotating shaft is fixedly fitted and connected inside the limiting post.

[0035] The tray has a slide rail inside that can accommodate the sliding shaft;

[0036] The limiting post has through slots on both sides to accommodate the movement of the baffle.

[0037] By adopting the above structure and installing electric push rods inside the limiting posts, each limiting post has a good limiting effect on the bottom block. Moreover, through the rotatable connection between the baffle and the limiting post, the tray can move through the slide shaft via the slide rail during the lifting and lowering movement. This causes the baffle to rotate through the rotating shaft, opening the baffles on both sides of the limiting post above the square groove, thus limiting the bottom block and ensuring the locking effect of the wire mesh.

[0038] Compared with the prior art, the intelligent anti-theft alarm device for prefabricated substations of the present invention has the following advantages:

[0039] 1. In this invention, by setting up an opening and closing lock and an audible and visual alarm, the substation will sound an alarm when it is forcibly opened, thus achieving psychological deterrence. Moreover, by connecting a servo motor and an electric push rod through a controller, the opening and closing lock will be re-locked inside the substation when it is forcibly opened. Through multiple physical protections, the internal security is prevented from being compromised after the box door is opened, thus achieving real-time physical cessation of criminal acts. This makes the substation more secure the more it is pried open, making theft physically impossible.

[0040] 2. In this invention, by connecting the rope-cutting unit to the outer wall of the gear column, the servo motor can achieve the transmission of the upper rack through the gear column, thereby cutting the pull rope. This avoids the transmission of the wire mesh when the box door is opened, achieving secondary protection of the box door after forced opening. Furthermore, by connecting the servo motor with the sound and light alarm, psychological deterrence is achieved. Moreover, when thieves know that the more they try to pry open the substation, the more likely they are to be locked, their criminal intent will be strongly suppressed. This effectively breaks through the cost-benefit calculation of most thieves, forcing them to abandon their crimes.

[0041] 3. In this invention, by setting up a locking component, the wire mesh provides secondary locking protection to the substation through the bottom block after the box door is forcibly opened. Moreover, by reinforcing the bottom block, the wire mesh is prevented from being violently damaged, and additional physical locking is added to the wire mesh. The locking mechanism based on different principles greatly increases the difficulty of damage and the time cost. Combined with the display screen and audible and visual alarm, ultimate interception is achieved.

[0042] 4. In this invention, under the action of the limiting unit, the limiting post is locked a second time after being inserted into the bottom block. Moreover, the opening of the baffle above the square groove achieves the limiting post's limitation, avoiding forced opening of the limiting post. At the same time, the independent electric push rod limiting setting for each limiting post makes it more difficult to unlock multiple limiting posts, greatly extending the time they are exposed to the risk scene and buying valuable response time for users and security personnel. Attached Figure Description

[0043] Figure 1 This is a structural schematic diagram of a box-type intelligent anti-theft alarm device for substations according to the present invention;

[0044] Figure 2 This is a schematic cross-sectional view of the door and body of the box in this invention;

[0045] Figure 3 In this invention Figure 2 A magnified structural diagram at point A;

[0046] Figure 4 This is a top view of the bottom block and wire mesh structure in this invention;

[0047] Figure 5This is a schematic diagram of the cross-sectional structure of the base block and the wire mesh in this invention;

[0048] Figure 6 This is a top view of the top frame and the box door in this invention.

[0049] Figure 7 This is a cross-sectional structural diagram of the top frame and the box door in this invention;

[0050] Figure 8 This is a schematic diagram of the structure of the limiting post and the wire mesh in this invention;

[0051] Figure 9 In this invention Figure 8 A magnified structural diagram at point B;

[0052] Figure 10 This is a schematic diagram of the structure of the limiting post and the lower rack in this invention;

[0053] Figure 11 This is a schematic cross-sectional view of the limiting post in this invention;

[0054] Figure 12 This is a schematic diagram of the topology of the intelligent anti-theft alarm device for box-type substations in this invention.

[0055] In the diagram, 1. Box body; 2. Base; 3. Hinge; 4. Box door; 5. Audible and visual alarm; 6. Opening and closing lock; 7. Display screen; 8. Pressure block; 9. Pull rope; 10. Bottom block; 11. Wire mesh; 12. Winding drum; 13. Guide column; 14. Upright column; 15. First pulley; 16. Second pulley; 17. Top frame; 18. Lower pulley; 19. Pulley seat; 20. Rotating rod; 21. Fixing plate; 22. Connecting plate; 23. Telescopic spring; 24. Wedge block; 25. Cutting blade; 26. Limiting block; 27. Extrusion wedge block; 28. Upper rack; 29. ​​Gear column; 30. Lower rack; 31. Lower connecting plate; 32. Limiting column; 33. Electric push rod; 34. Support plate; 35. Sliding shaft; 36. Baffle; 37. Rotating shaft; 38. Slide rail. Detailed Implementation

[0056] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0057] like Figures 1-12As shown, a box-type substation intelligent anti-theft alarm device includes a box body 1, a base 2 fixedly connected to the bottom of the box body 1, a hinge 3 rotatably connected to one side of the box body 1, a box door 4 fixedly connected to the other side of the hinge 3, an audible and visual alarm 5, an opening and closing lock 6, a display screen 7, a pressure block 8, a pull rope 9, a bottom block 10, a wire mesh 11, a winding drum 12, a guide column 13, a column 14, a first pulley 15, a second pulley 16, a top frame 17, a lower pulley 18, a pulley seat 19, a rotating rod 20, a fixing plate 21, a connecting plate 22, a telescopic spring 23, a wedge block 24, a cutting blade 25, a limiting block 26, a squeezing wedge block 27, an upper rack 28, a gear column 29, a lower rack 30, a lower connecting plate 31, a limiting column 32, an electric push rod 33, a support plate 34, a sliding shaft 35, a baffle 36, a rotating shaft 37, and a slide rail 38. The device is located on the surface of the box door 4. A sound and light alarm 5 is fixedly installed on the surface of the box, and an opening and closing lock 6 is fixedly installed between the two boxes 4. A display screen 7 is embedded and connected to the surface of the box 4. The display screen 7 is electrically connected to a controller to facilitate precise control of electrical components. A pressure block 8 is fixedly installed at the top of the box 4. A pull rope 9 is fixedly connected to the bottom of the pressure block 8. A base block 10 is fixedly installed at the other end of the pull rope 9. A wire mesh 11 is fixedly installed on the surface of the base block 10. A winding drum 12 is wound and connected to the top of the wire mesh 11. The winding drum 12 is rotatably connected to the inner top of the box 1. Two guide columns 13 are fixedly installed on the inner bottom wall of the box 1. The base block 10 is slidably connected to the outer wall of the guide column 13. A column 14 is parallel to the outer side of the guide column 13. The column 14 is fixedly installed on the inner bottom wall of the box 1. A top frame 17 is fixedly installed at the top of the column 14.

[0058] Furthermore, to achieve the pulling effect of the pull rope 9, a first pulley 15 is rotatably connected inside the top frame 17, and the pull rope 9 is attached to the outer wall of the first pulley 15. A second pulley 16 is also attached to the outer wall of the pull rope 9, and the second pulley 16 is rotatably connected inside the top frame 17, located to one side of the first pulley 15. A lower pulley 18 is provided below the second pulley 16, and the lower pulley 18 is rotatably mounted on the top of the column 14. Specifically, a pulley seat 19 is rotatably connected to the outer side of the lower pulley 18, and the interior of the pulley seat 19... A rotating rod 20 is fixedly connected to the top of the column 14. The pulley seat 19 is installed on the top of the column 14 on the side away from the hinge 3. By rotating the pulley seat 19 on the top of the column 14, the bottom block 10 can be moved by the pull rope 9 when the box door 4 is normally opened. Moreover, the pulley seat 19 drives the lower pulley 18 to rotate, so that the pulley seat 19 can be adjusted with the angle of opening the box door 4, ensuring the pulling force of the pull rope 9 when the box door 4 is opened, ensuring the service life of the pull rope 9. The structure is simple and practical.

[0059] The pull rope 9 coincides with the central axis of the wire mesh 11, and the top side of the pull rope 9 is attached to the first pulley 15. The outer wall of the first pulley 15 coincides with the central axis of the wire mesh 11, and a rope cutting unit is provided on the side of the first pulley 15 away from the second pulley 16. A locking component is connected to the lower part of the rope cutting unit.

[0060] Furthermore, the rope-cutting unit includes a fixed plate 21, which is fixedly connected to the inside of the top frame 17. A through hole for accommodating the pull rope 9 is provided inside the fixed plate 21. A connecting plate 22 is fixedly connected inside the top frame 17, and a telescopic spring 23 is fixedly installed on the outer wall of the connecting plate 22. A wedge block 24 is fixedly installed at the other end of the telescopic spring 23, and the wedge block 24 is slidably connected to the inner wall of the top frame 17. A cutting blade 25 is fixedly installed at the end of the wedge block 24 closest to the pull rope 9, and the cutting blade 25 is located on the surface of the fixed plate 21. A limiting block 26 is fixedly installed on the surface of the fixed plate 21, and the limiting block 26 and the cutting blade 25 are located on opposite sides of the pull rope 9. The limiting block 26 causes the wedge block 24 to move the cutting blade 25 on the surface of the fixed plate 21, thus achieving a limiting position. Furthermore, the limiting block 26 and the two sides of the cutting blade 25 ensure that the cutting blade 25... The force applied to the pull rope 9 ensures the cutting effect of the cutting blade 25 on the pull rope 9. Simultaneously, a wedge block 27 is engaged with the end of the wedge block 24 furthest from the cutting blade 25, and an upper rack 28 is fixedly installed at the bottom of the wedge block 27. The upper rack 28 is slidably connected to the inner wall of the housing 1. The wedge block 24 and the wedge block 27 are wedge-shaped and fitted together, and the bottom of the wedge block 27 has a wedge-shaped structure. The wedge block 27 is located inside the top frame 17, and the wedge... The wedge block 27 and the upper rack 28 are arranged in an "L" shape. When the wedge block 24 and the squeezing wedge block 27 are wedge-shaped and fit together, the upper rack 28 drives the squeezing wedge block 27 to move upward. The wedge block 24 drives the cutting blade 25 to move towards the pull rope 9 side, so that the cutting blade 25 cuts the pull rope 9. This avoids the simultaneous opening of the wire mesh 11 when the box door 4 is opened, so that the box door 4 can be locked again after being forcibly opened, thus realizing the secondary locking of the box-type substation.

[0061] The locking assembly includes a lower rack 30, which is slidably connected to the inner wall of the housing 1. A gear post 29 is meshed with the outer wall of the lower rack 30, and the gear post 29 is rotatably connected between the column 14 and the housing 1. The gear post 29 is rotatably connected to the outer wall of the column 14, and the gear post 29 is driven by a servo motor. The servo motor is fixedly installed inside the column 14 and is electrically connected to an audible and visual alarm 5, an opening and closing lock 6, and a display screen 7. A camera is embedded in the display screen 7. A vibration sensor is installed on the opening and closing lock 6. When the lock body of the opening and closing lock 6 is subjected to abnormal behavior such as prying or knocking, the vibration sensor detects the vibration through the built-in camera on the display screen 7. The device takes pictures and triggers an alarm via sound and light alarm 5 to achieve psychological deterrence. Furthermore, by connecting the controller to the servo motor and electric push rod 33, the box door 4 is physically locked, making the substation more secure to bend, thus physically preventing theft. Simultaneously, an upper rack 28 is meshed with the outer wall of the gear column 29 on the side away from the lower rack 30. A lower connecting plate 31 is fixedly installed at the bottom end of the lower rack 30 and slidably connected to the lower inner part of the box body 1. Multiple limiting posts 32 are fixedly installed on the surface of the lower connecting plate 31. The lower rack 30 and the lower connecting plate 31 are arranged in an "L" shape. This arrangement of the lower rack 30 and the lower connecting plate 31... Under the action of the gear column 29 and the lower rack 30, the gear column 29 can synchronously drive the lower rack 30 and the upper rack 28 to move inward when rotating. This causes the lower rack 30 to drive the lower connecting plate 31 to move upward. By fixing multiple limiting posts 32 on the surface of the lower connecting plate 31, the limiting posts 32 can limit the insertion of the bottom block 10 from below, which facilitates the secondary locking of the wire mesh 11 through the bottom block 10, ensuring the physical prevention of violent acts by the substation. Specifically, the limiting posts 32 are rectangular in structure, and the bottom of the box 1 is provided with a cavity to accommodate the limiting posts 32. The limiting posts 32 and the box door 4 are respectively located on the wire mesh 11. The limit posts 32 are positioned on both sides of the steel wire mesh 11. By placing the limit posts 32 at the rear end of the steel wire mesh 11, it is impossible to forcibly operate the limit posts 32 after the box door 4 is opened, thus ensuring the protective effect of the steel wire mesh 11 on the substation. At the same time, multiple square slots are provided through the bottom of the box body 1 to accommodate the insertion of the limit posts 32. The limit posts 32 are provided with limit units inside. By setting square slots inside the box body 1, the connection effect between the bottom block 10 and the box body 1 is ensured when the limit posts 32 move upward. Moreover, by setting a cavity at the bottom of the box body 1, the storage effect of the limit posts 32 under normal conditions is ensured, avoiding interference of the limit posts 32 with the normal opening of the steel wire mesh 11.

[0062] The limiting unit includes an electric push rod 33, which is fixedly installed on the inner top wall of the limiting post 32. A support plate 34 is fixedly installed at the output end of the electric push rod 33, and the support plate 34 is slidably connected inside the limiting post 32. A sliding shaft 35 is slidably connected inside the support plate 34, and a baffle 36 is fixedly installed on the outer wall of the sliding shaft 35, with the sliding shaft 35 located below the baffle 36. A rotating shaft 37 is rotatably installed in the middle of the baffle 36, and the rotating shaft 37 is fixedly fitted inside the limiting post 32. A slide rail 38 is provided inside the support plate 34 to accommodate the sliding of the sliding shaft 35. The limiting post 32 has through slots on both sides to accommodate the movement of the baffle 36. By setting an electric push rod 33 inside the limiting post 32, each limiting post 32 has a good limiting effect on the bottom block 10. Moreover, through the rotational connection between the baffle 36 and the limiting post 32, the support plate 34 can move through the slide rail 38 to drive the slide shaft 35 during the lifting and lowering movement. This causes the baffle 36 to rotate through the rotating shaft 37, so that the baffles 36 on both sides of the limiting post 32 open above the square slot, thereby limiting the bottom block 10 and ensuring the locking effect of the wire mesh 11.

[0063] The working principle of this invention is as follows: In normal operation, the user opens the door 4 using the lock 6. A pull rope 9 is fixedly connected to the top of the door 4, causing the bottom block 10 to move upwards. After opening, the bottom block 10 pulls the wire mesh 11 upwards, opening the substation interior. When the lock 6 is forcibly opened, the vibration sensor detects the impact and vibration, triggering an alarm via the audible and visual alarm 5. Simultaneously, the controller powers the servo motor, causing the gear... When the gear column 29 rotates, the upper rack 28 and the lower rack 30 mesh with each other on the outer wall of the gear column 29, causing the upper rack 28 and the lower rack 30 to move towards each other. A wedge block 27 is fixedly connected to the top of the upper rack 28. Under the contact action of the wedge block 24 and the wedge block 27, the wedge block 24 is compressed, causing the cutting blade 25 to move towards the limiting block 26. This causes the cutting blade 25 to cut the pull rope 9, preventing the door 4 from interfering with the bottom block 10 when it is opened, thus ensuring the protective effect of the wire mesh 11. Simultaneously, through... The meshing connection between the lower rack 30 and the gear post 29 causes the lower rack 30 to drive the lower connecting plate 31 to move upward, thereby allowing the limiting post 32 to be precisely inserted into the square groove. The multiple limiting posts 32 ensure the limiting effect of the limiting posts 32 on the bottom block 10. Simultaneously, by energizing the electric push rod 33, the support plate 34 can drive the sliding shaft 35 to move as the electric push rod 33 rises and falls, causing the baffle 36 to rotate via the rotating shaft 37. This causes the baffles 36 on both sides of the limiting post 32 to move within the square groove. The top of the slot is opened, which limits the bottom block 10 and ensures the locking effect of the wire mesh 11. This ensures that the bottom block 10 drives the wire mesh 11 to protect the substation, making it more secure the more it is pried open. Moreover, by setting the limit post 32 on the rear side of the wire mesh 11, it avoids forced disassembly. Users can protect the substation by controlling the electric push rod 33, thus achieving both electronic and physical protection and enabling real-time physical cessation of criminal activities. This completes the working principle of the intelligent anti-theft alarm device for the box-type substation.

[0064] In summary, this invention, through the installation of the lock 6 and the audible and visual alarm 5, enables the substation to sound an alarm when forcibly opened, thus achieving psychological deterrence. Furthermore, by connecting the controller to the servo motor and the electric push rod 33, the lock 6 can achieve secondary locking inside the substation when forcibly opened. Through multiple physical protections, the internal security is prevented from being compromised after the box door 4 is opened, achieving real-time physical cessation of criminal activity. This makes the substation more secure the more it is pried open, physically preventing theft. This solves the technical problems of existing box-type substation anti-theft alarm devices, which cannot achieve multiple anti-theft effects when the box-type substation is forcibly opened, cannot physically stop criminal activity, and cannot achieve psychological deterrence through alarms.

[0065] The specific embodiments described herein are merely illustrative of the spirit of the invention. Those skilled in the art to which this invention pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of the invention or exceeding the scope defined by the appended claims.

Claims

1. A prefabricated substation intelligent anti-theft alarm device, comprising a box body, a base fixedly connected to the bottom of the box body, a hinge rotatably connected to one side of the box body, and a door fixedly connected to the other side of the hinge, characterized in that, A sound and light alarm is fixedly installed on the surface of the cabinet door, and an opening and closing lock is fixedly installed between the two cabinet doors. A display screen is embedded in the surface of the cabinet door, and a pressure block is fixedly installed on the top of the cabinet door. A pull rope is fixedly connected to the bottom end of the pressure block, and a base block is fixedly installed on the other end of the pull rope. A wire mesh is fixedly installed on the surface of the base block, and a winding drum is wound around the top of the wire mesh. The winding drum is rotatably connected to the inner top of the cabinet. Two guide columns are fixedly installed on the inner bottom wall of the box, and a bottom block is slidably connected to the outer wall of the guide columns. A column is arranged parallel to the outer side of the guide columns, and the column is fixedly installed on the inner bottom wall of the box. A top frame is fixedly installed on the top of the column. The top frame is rotatably connected to a first pulley, and a pull rope is attached to the outer wall of the first pulley. The outer wall of the pull rope is also attached to a second pulley, which is rotatably connected to the inside of the top frame and located on one side of the first pulley. A lower pulley is provided below the second pulley and is rotatably located on the top of the column. The pull rope coincides with the central axis of the wire mesh, and the top side of the pull rope is attached to the first pulley. The outer wall of the first pulley coincides with the central axis of the wire mesh, and a rope cutting unit is provided on the side of the first pulley away from the second pulley. A locking component is connected to the lower part of the rope cutting unit. The rope cutting unit includes a fixing plate, which is fixedly connected to the inside of the top frame, and the inside of the fixing plate has a through hole for accommodating the pull rope. The top frame is fixedly connected to a connecting plate, and a telescopic spring is fixedly installed on the outer wall of the connecting plate. A wedge block is fixedly installed on the other end of the telescopic spring, and the wedge block is slidably connected to the inner wall of the top frame. A cutting blade is fixedly installed on the end of the wedge block near the pull rope, and the cutting blade is located on the surface of the fixed plate. The wedge block is engaged with a squeezing wedge block at the end away from the cutting blade, and an upper rack is fixedly installed at the bottom end of the squeezing wedge block, with the upper rack slidably connected to the inner wall of the box. The wedge block and the extrusion wedge block are connected by a wedge-shaped fit, and the bottom end of the extrusion wedge block is set with a wedge structure. The extrusion wedge block is located inside the top frame, and the extrusion wedge block and the upper rack are set in an "L" shape. The locking assembly includes a lower rack, which is slidably connected to the inner wall of the housing. A gear column is meshed with the outer wall of the lower rack, and the gear column is rotatably connected between the column and the housing. An upper rack is also meshed with the outer wall of the gear column on the side away from the lower rack. The bottom end of the lower rack is fixedly installed with a lower connecting plate, and the lower connecting plate is slidably connected to the lower inner part of the box. Multiple limiting posts are fixedly installed on the surface of the lower connecting plate. The lower rack and the lower connecting plate are arranged in an "L" shape.

2. The intelligent anti-theft alarm device for a prefabricated substation according to claim 1, characterized in that, The outer side of the lower pulley is rotatably connected to a pulley seat, and the inside of the pulley seat is fixedly connected to a rotating rod, which is rotatably connected to the top of the column. The pulley seat is installed at the top of the column on the side away from the hinge.

3. The intelligent anti-theft alarm device for a prefabricated substation according to claim 1, characterized in that, Limiting blocks are fixedly installed on the surface of the fixing plate, and the limiting blocks and the cutting blade are located on both sides of the pull rope.

4. The intelligent anti-theft alarm device for a prefabricated substation according to claim 1, characterized in that, The outer wall of the column is rotatably connected to a gear column, which is driven by a servo motor, and the servo motor is fixedly installed inside the column. The servo motor is electrically connected to an audible and visual alarm, an opening and closing lock, and a display screen; A camera is embedded within the display screen.

5. The intelligent anti-theft alarm device for a prefabricated substation according to claim 1, characterized in that, The limiting post is rectangular in shape, and the bottom of the box has a cavity to accommodate the limiting post. The limiting post and the box door are respectively located on both sides of the wire mesh. The bottom of the box has multiple square slots that can accommodate the insertion of limiting posts, and the limiting posts are equipped with limiting units inside.

6. The intelligent anti-theft alarm device for a prefabricated substation according to claim 5, characterized in that, The limiting unit includes an electric push rod, which is fixedly installed on the inner top wall of the limiting post. The output end of the electric push rod is fixedly installed with a support plate, which is slidably connected inside the limiting post. The tray is slidably connected to a sliding shaft inside, and a baffle is fixedly installed on the outer wall of the sliding shaft. The sliding shaft is located below the baffle. A rotating shaft is rotatably installed in the middle of the baffle, and the rotating shaft is fixedly fitted and connected inside the limiting post. The tray has a slide rail inside that can accommodate the sliding shaft; The limiting post has through slots on both sides to accommodate the movement of the baffle.

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