A cable theft alarm device

Abstract

The application discloses a cable anti-theft alarm device, and relates to the technical field of cable anti-theft, which comprises a box body, a vertical plate is fixedly connected in the box body, a driving mechanism is arranged on one side of the vertical plate, horizontal plates are fixedly and symmetrically connected on the other side of the vertical plate, an adjusting mechanism is fixedly installed on the horizontal plate located at the lower side, the driving mechanism is in transmission connection with the adjusting mechanism, a plurality of connecting lines are fixedly connected on the adjusting mechanism, the connecting lines are extended out of the box body and fixedly connected with clamping mechanisms, the clamping mechanisms are embedded in cables, a first sensor, a second sensor and a third sensor are sequentially installed on the horizontal plate located at the upper side, when the cable is cut off, the clamping mechanism is broken to trigger the adjusting mechanism to change, and one or more of the first sensor, the second sensor and the third sensor send signals, and an external alarm is controlled to send an alarm. The application can realize real-time monitoring of cable cutting and multi-sensor cooperative alarm, improve the anti-theft response speed and reliability, and reduce the false alarm rate.

Description

Technical Field

[0001] This invention relates to the field of cable anti-theft technology, and in particular to a cable anti-theft alarm device. Background Technology

[0002] With the rapid development and progress of social sciences, people's living standards have been greatly improved, and the power industry has developed rapidly. Cables, as a common tool used in power transmission, have been widely used. However, when used outdoors, they often face problems such as theft. Manual inspections require a lot of manpower and resources and are not very effective, so they are generally equipped with anti-theft alarm devices for prevention.

[0003] Existing alarm devices only trigger their internal structure and sound an alarm when the cable is cut, which is a relatively simple mode. If a thief splits the cable horizontally, cuts the internal conductor, and removes it, the alarm device will not be triggered, causing the device to malfunction. Therefore, it is particularly important to invent a device that can trigger the alarm mechanism in multiple ways. Summary of the Invention

[0004] The purpose of this invention is to provide a cable anti-theft alarm device to solve the problems existing in the prior art.

[0005] To achieve the above objectives, the present invention provides the following solution: The present invention provides a cable anti-theft alarm device, including a housing, a vertical plate fixedly connected inside the housing, a driving mechanism provided on one side of the vertical plate, and a horizontal plate symmetrically fixedly connected on the other side of the vertical plate. An adjustment mechanism is fixedly installed on the lower horizontal plate, the driving mechanism is pulsatorically connected to the adjustment mechanism, and several connecting wires are fixedly connected to the adjustment mechanism. The connecting wires extend out of the housing and are fixedly connected to a locking mechanism, which is embedded in the cable. A first sensor, a second sensor, and a third sensor are sequentially installed on the upper horizontal plate. When the cable is cut, the locking mechanism breaks, triggering a change in the adjustment mechanism, causing one or more of the first, second, and third sensors to emit signals and control an external alarm to sound an alarm.

[0006] Optionally, the cable includes an outer sheath, an inner insulating layer, a conductor inside the insulating layer, a filler layer between the conductor and the insulating layer, and a plurality of grooves circumferentially formed on the outer side of the outer sheath, with the snap-fit ​​mechanism embedded in the grooves.

[0007] Optionally, the snap-fit ​​mechanism includes an insert strip, with limiting strips fixedly connected to both sides of the insert strip. The insert strip and the limiting strip are adapted to the groove. A wire is provided at the center of the insert strip, and the insert strip is fixedly connected to the connecting wire.

[0008] Optionally, the adjustment mechanism includes a guide rail, on which a connecting block is slidably connected. One end of a spring is fixedly connected to the end of the connecting block, and the other end of the spring is fixedly connected to a first disc. A plurality of connecting pieces are arranged circumferentially on the first disc, and the plurality of connecting pieces are correspondingly arranged and fixedly connected to a plurality of connecting lines. Sensor heads are fixedly connected to both the upper and lower sides of the first disc. Fixed plates are respectively arranged on the upper and lower sides of the spring. The fixed plates are fixedly connected to the horizontal plate, and sensor plates are installed on the fixed plates. When the embedded strip breaks, the spring contracts, causing the sensor plate to contact the sensor head, thereby triggering an alarm.

[0009] Optionally, a second disc is provided on the side of the first disc away from the connecting block. The second disc is fixedly connected to the horizontal plate. The connecting line passes through the second disc. Several sockets are fixedly installed on the second disc. Several plugs are fixedly installed on the first disc. The plugs and sockets are arranged one-to-one. When the embedded strip is pulled, the plug extends into the socket and triggers an alarm.

[0010] Optionally, a slider is slidably connected inside the guide rail, the connecting block is fixedly connected to the slider, a lead screw is threaded through the center of the slider, and the lead screw is connected to the drive mechanism for transmission.

[0011] Optionally, the drive mechanism includes a large gear, which is fixedly connected to the lead screw. The large gear meshes with a small gear, and a connecting rod is fixedly connected to the center of the small gear. The connecting rod is rotatably connected to the vertical plate. A worm gear is fixedly connected to the connecting rod, and the worm gear meshes with a worm. The worm is fixedly connected to a connecting shaft, and the connecting shaft is rotatably connected to the inner wall of the housing.

[0012] Optionally, one end of the connecting shaft extends out of the housing and is fixedly connected to a crank handle.

[0013] Optionally, a door panel is installed on the housing, and a handle is provided on the door panel.

[0014] This invention discloses the following technical effects: In use, a clamping mechanism is installed on the cable, and the clamping mechanism is connected to an adjustment mechanism via a connecting line. A tension sensor is installed at the connection point between the connecting line and the clamping mechanism. The adjustment mechanism is adjusted by a drive mechanism. When the tension sensor reaches a specified threshold (the clamping mechanism remains taut, and the tension is less than the clamping mechanism's breaking stress), a signal is emitted, indicating that the adjustment mechanism is in place. When the cable is damaged, the clamping mechanism is also damaged, triggering an alarm mechanism to alert staff to conduct inspections. The connection method between the clamping mechanism and the adjustment mechanism can achieve multiple triggering conditions, thereby reducing the risk of theft. This invention integrates various components through a housing, with a vertical plate separating the drive mechanism and the adjustment mechanism. When the cable is cut, the clamping mechanism also breaks, and the change in force on the connecting line triggers a change in the state of the adjustment mechanism, which in turn causes the first, second, and third sensors to detect signal changes, ultimately controlling the external alarm to sound. This invention enables real-time monitoring of cable cutting and multi-sensor coordinated alarm, improving anti-theft response speed and reliability, and reducing false alarm rate. Attached Figure Description

[0015] The accompanying drawings, which form part of this application, are used to provide a further understanding of this application. The illustrative embodiments and descriptions of this application are used to explain this application and do not constitute an undue limitation of this application. In the drawings: Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a schematic diagram of the cable structure of the present invention; Figure 3 For the present invention Figure 2 A magnified view of part A in the image; Figure 4 This is a schematic diagram of the internal structure of the housing of the present invention; Figure 5 For the present invention Figure 4 A magnified view of part B in the image; Figure 6 For the present invention Figure 4 A structural diagram from another perspective; Figure 7 This is a schematic diagram of the adjustment mechanism of the present invention; Figure 8 For the present invention Figure 7 A structural diagram from another perspective; In the diagram: 1. Housing; 2. Door panel; 3. Crank handle; 4. Outer wrapping layer; 5. Isolation layer; 6. Filling layer; 7. Conductor; 8. Embedded strip; 9. Limiting strip; 10. Wire; 11. Groove; 12. Vertical plate; 13. Horizontal plate; 14. First sensor; 15. Second sensor; 16. Third sensor; 17. Fixing plate; 18. Sensing plate; 19. Large gear; 20. Worm gear; 21. Worm wheel; 22. Small gear; 23. Connecting shaft; 24. Guide rail; 25. Lead screw; 26. Connecting block; 27. Spring; 28. Sensing head; 29. ​​Slider; 30. First disc; 31. Connecting plate; 32. Second disc; 33. Socket; 34. Plug; 35. Connecting wire. Detailed Implementation

[0016] 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.

[0017] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0018] Reference Figures 1 to 8 As shown, this embodiment provides a cable anti-theft alarm device, including a housing 1. A vertical plate 12 is fixedly connected inside the housing 1. A drive mechanism is provided on one side of the vertical plate 12, and a horizontal plate 13 is symmetrically fixedly connected to the other side of the vertical plate 12. An adjustment mechanism is fixedly installed on the lower horizontal plate 13. The drive mechanism and the adjustment mechanism are connected in a transmission connection. Several connecting wires 35 are fixedly connected to the adjustment mechanism. The connecting wires 35 extend out of the housing 1 and are fixedly connected to a snap-fit ​​mechanism. The snap-fit ​​mechanism is embedded in the cable. A first sensor 14, a second sensor 15, and a third sensor 16 are sequentially installed on the upper horizontal plate 13. When the cable is cut, the snap-fit ​​mechanism breaks, triggering a change in the adjustment mechanism, and causing one or more of the first sensor 14, the second sensor 15, and the third sensor 16 to emit a signal, controlling an external alarm to sound an alarm.

[0019] In use, a clamping mechanism is installed on the cable and connected to the adjustment mechanism via connecting line 35. A tension sensor is installed at the connection between connecting line 35 and the clamping mechanism. The adjustment mechanism is adjusted by the drive mechanism. When the tension sensor reaches a specified threshold (the clamping mechanism remains taut, and the tension is less than the clamping mechanism's breaking stress), a signal is emitted, indicating that the adjustment mechanism is in place. When the cable is damaged, the clamping mechanism will also be damaged, triggering an alarm mechanism to alert staff to conduct inspections. The connection method between the clamping mechanism and the adjustment mechanism can achieve multiple triggering conditions, thereby reducing the risk of theft. This invention integrates all components through the housing 1, with the vertical plate 12 separating the drive mechanism and the adjustment mechanism. When the cable is cut, the clamping mechanism will also break, and the change in force on connecting line 35 triggers a change in the state of the adjustment mechanism, which in turn causes the first sensor 14, the second sensor 15, and the third sensor 16 to detect signal changes, ultimately controlling the external alarm to sound. This invention can achieve real-time monitoring of cable cutting and multi-sensor coordinated alarm, improving the anti-theft response speed and reliability, and reducing the false alarm rate.

[0020] Further refining the design, the cable includes an outer sheath 4, an inner insulating layer 5, a conductor 7 inside the insulating layer 5, and a filler layer 6 between the conductor 7 and the insulating layer 5. Several grooves 11 are circumferentially formed on the outer side of the outer sheath 4, and a snap-fit ​​mechanism is embedded within these grooves 11. The cable is composed of the outer sheath 4, insulating layer 5, conductor 7, and filler layer 6. The grooves 11 on the outer sheath 4 allow the snap-fit ​​mechanism to be embedded. The insulating layer 5 prevents direct exposure of the conductor 7, the filler layer 6 maintains structural stability, and the outer sheath 4 provides external protection. This multi-layered structure enhances the cable's physical protection capabilities, extends the time required for damage, and provides a response window for alarms.

[0021] Further refining the design, the locking mechanism includes an embedded strip 8, with limiting strips 9 fixedly connected to both sides of the embedded strip 8. The embedded strip 8 and the limiting strips 9 are adapted to the groove 11. A wire 10 is provided in the center of the embedded strip 8, and the embedded strip 8 is fixedly connected to the connecting line 35. The embedded strip 8 and the limiting strips 9 are adapted to the cable groove 11, with the wire 10 embedded inside the embedded strip 8. The connecting line 35 connects the locking mechanism to the adjustment mechanism. The wedge-shaped structure of the embedded strip 8 and the limiting strips 9 ensures that the locking mechanism is firmly fixed in the groove 11, preventing the locking mechanism from coming out. When the wire 10 breaks, an alarm can be triggered, avoiding the traditional single trigger mode and improving the sensitivity of the alarm.

[0022] Further refining the scheme, the adjustment mechanism includes a guide rail 24, on which a connecting block 26 is slidably connected. One end of a spring 27 is fixedly connected to the end of the connecting block 26, and the other end of the spring 27 is fixedly connected to a first disc 30. Several connecting pieces 31 are arranged circumferentially on the first disc 30, and these connecting pieces 31 are correspondingly and fixedly connected to several connecting lines 35. Sensor heads 28 are fixedly connected to both the upper and lower sides of the first disc 30. Fixing plates 17 are respectively arranged on the upper and lower sides of the spring 27, and are fixedly connected to a horizontal plate 13. Sensor pieces 18 are installed on the fixing plates 17. When the embedded strip 8 breaks, the spring 27 contracts, causing the sensor piece 18 to contact the sensor head 28, thereby triggering an alarm. When the embedded strip 8 breaks, the spring 27 contracts, causing the first disc 30 to move, and the sensor head 28 contacts the sensor piece 18 on the fixing plate 17, triggering an alarm signal. The elastic restoring force of the spring 27 ensures the stability of signal transmission, and high-sensitivity triggering is achieved through the contact between the sensor piece 18 and the sensor head 28, avoiding false triggering.

[0023] Further refining the design, a second disc 32 is positioned on the side of the first disc 30 furthest from the connecting block 26. The second disc 32 is fixedly connected to the horizontal plate 13, and a connecting wire 35 passes through it. Several sockets 33 are fixedly installed on the second disc 32, and several plugs 34 are fixedly installed on the first disc 30. Each plug 34 corresponds to one of the sockets 33. When the embedded strip 8 is pulled, the plug 34 extends into the socket 33 and triggers an alarm. The distance between two adjacent embedded strips 8 is greater than the diameter of the conductor 7; if the conductor 7 is to be removed from the embedded strip 8, it will be pulled. When the embedded strip 8 is pulled, the connecting wire 35 moves the first disc 30, and the plug 34 inserts into the socket 33 of the second disc 32, forming an electrical connection and triggering the alarm. The insertion method of the plug 34 and socket 33 ensures reliable contact and avoids loose connections.

[0024] Furthermore, this application includes three alarm triggering methods. First, when the cable is completely cut, the first disc 30 is pulled by the spring 27, causing the sensing element 18 to contact the sensing head 28 and triggering the alarm. Second, when the embedded strip 8 is pulled, the first disc 30 moves, causing the plug 34 to contact the socket 33 and triggering the alarm. Third, the alarm is triggered when the wire 10 inside the embedded strip 8 breaks. These three methods correspond to the first sensor 14, the second sensor 15, and the third sensor 16, respectively. When the triggering conditions are met, one or more of these sensors simultaneously emit signals and sound an alarm to alert personnel. Multiple triggering modes further improve alarm sensitivity and expand the monitoring range, thereby reducing the risk of cable theft.

[0025] Further refining the design, a slider 29 is slidably connected within the guide rail 24. A connecting block 26 is fixedly connected to the slider 29. A lead screw 25 is threaded through the center of the slider 29 and connected to it. The lead screw 25 is connected to the drive mechanism. The lead screw 25 drives the slider 29 to move along the guide rail 24 via the drive mechanism. The slider 29 then drives the connecting block 26 to move until the first disc 30 reaches a balanced state. The lead screw 25 transmission enables precise position adjustment, facilitating installation and debugging. The structure of the guide rail 24 and slider 29 ensures smooth movement and reduces mechanical wear.

[0026] Further refining the design, the drive mechanism includes a large gear 19, which is fixedly connected to a lead screw 25. The large gear 19 meshes with a small gear 22, and a connecting rod is fixedly connected to the center of the small gear 22. The connecting rod is rotatably connected to a vertical plate 12, and a worm gear 21 is fixedly connected to the connecting rod. The worm gear 21 meshes with a worm 20, and the worm 20 is fixedly connected to a connecting shaft 23, which is rotatably connected to the inner wall of the housing 1. Rotating the connecting shaft 23 causes the worm 20 to rotate, which in turn causes the worm gear 21 to rotate, which in turn causes the connecting rod to rotate. The small gear 22 on the connecting rod meshes with the large gear 19, thus driving the lead screw 25 to rotate and adjust the position of the slider 29. The worm gear 21 and worm 20 are self-locking to prevent reverse rotation and ensure stable operation of the drive mechanism. The meshing connection between the gear and the small gear 22 amplifies the torque, adapts to different load requirements, and enhances operational reliability.

[0027] The design is further refined so that one end of the connecting shaft 23 extends out of the housing 1 and is fixedly connected to a crank handle 3. The crank handle 3 is fixed to the end of the connecting shaft 23. Manually rotating the crank handle 3 drives the entire drive mechanism, enabling direct control of the drive mechanism through manual operation and simplifying the operation process.

[0028] Further refining the design, a door panel 2 is installed on the enclosure 1, and a handle is provided on the door panel 2. The door panel 2 and the enclosure 1 adopt a hinged structure, thereby realizing the opening and closing of the door panel 2. The handle provides operational convenience. The door panel 2 opens the enclosure 1 through the handle, which is convenient for inspecting, maintaining or debugging the internal components. At the same time, the enclosed enclosure 1 can protect the internal components from the influence of the external environment and improve the weather resistance of the system.

[0029] In the description of this invention, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this invention, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention.

[0030] The embodiments described above are merely preferred embodiments of the present invention and are not intended to limit the scope of the present invention. Various modifications and improvements made by those skilled in the art to the technical solutions of the present invention without departing from the spirit of the present invention should fall within the protection scope defined by the claims of the present invention.

Claims

1. A cable anti-theft alarm device, characterized in that: The device includes a housing (1), a vertical plate (12) is fixedly connected inside the housing (1), a drive mechanism is provided on one side of the vertical plate (12), and a horizontal plate (13) is symmetrically fixedly connected on the other side of the vertical plate (12). An adjustment mechanism is fixedly installed on the horizontal plate (13) located below. The drive mechanism is connected to the adjustment mechanism in a transmission manner. Several connecting lines (35) are fixedly connected to the adjustment mechanism. The connecting lines (35) extend out of the housing (1) and are fixedly connected to a snap-fit ​​mechanism. The snap-fit ​​mechanism is embedded in the cable. A first sensor (14), a second sensor (15), and a third sensor (16) are installed sequentially on the horizontal plate (13) located above. When the cable is cut, the snap-fit ​​mechanism breaks, triggering a change in the adjustment mechanism, and causing one or more of the first sensor (14), the second sensor (15), and the third sensor (16) to emit a signal and control an external alarm to sound an alarm.

2. The cable anti-theft alarm device according to claim 1, characterized in that: The cable includes an outer sheath (4), an isolation layer (5) is provided inside the outer sheath (4), a conductor (7) is provided inside the isolation layer (5), a filling layer (6) is provided between the conductor (7) and the isolation layer (5), and a plurality of grooves (11) are provided on the outer circumferential side of the outer sheath (4), and the snap-fit ​​mechanism is embedded in the grooves (11).

3. The cable anti-theft alarm device according to claim 2, characterized in that: The snap-fit ​​mechanism includes an embedded strip (8), with limiting strips (9) fixedly connected to both sides of the embedded strip (8). The embedded strip (8) and the limiting strips (9) are adapted to the groove (11). A wire (10) is provided in the center of the embedded strip (8), and the embedded strip (8) is fixedly connected to the connecting line (35).

4. The cable anti-theft alarm device according to claim 3, characterized in that: The adjustment mechanism includes a guide rail (24), on which a connecting block (26) is slidably connected. One end of a spring (27) is fixedly connected to the end of the connecting block (26), and the other end of the spring (27) is fixedly connected to a first disc (30). A plurality of connecting pieces (31) are arranged circumferentially on the first disc (30). The plurality of connecting pieces (31) are correspondingly arranged and fixedly connected to the plurality of connecting lines (35). Sensor heads (28) are fixedly connected to both the upper and lower sides of the first disc (30). Fixing plates (17) are respectively arranged on the upper and lower sides of the spring (27). The fixing plates (17) are fixedly connected to the horizontal plate (13). A sensor piece (18) is installed on the fixing plate (17). When the embedded strip (8) breaks, the spring (27) contracts, causing the sensor piece (18) to contact the sensor head (28), thereby triggering an alarm.

5. The cable anti-theft alarm device according to claim 4, characterized in that: A second disc (32) is provided on the side of the first disc (30) away from the connecting block (26). The second disc (32) is fixedly connected to the horizontal plate (13). The connecting line (35) passes through the second disc (32). Several sockets (33) are fixedly installed on the second disc (32). Several plugs (34) are fixedly installed on the first disc (30). Several plugs (34) are set in correspondence with several sockets (33). When the embedded strip (8) is pulled, the plug (34) extends into the socket (33) and triggers an alarm.

6. The cable anti-theft alarm device according to claim 4, characterized in that: A slider (29) is slidably connected inside the guide rail (24). The connecting block (26) is fixedly connected to the slider (29). A lead screw (25) is threaded through the center of the slider (29) and connected to the drive mechanism.

7. The cable anti-theft alarm device according to claim 6, characterized in that: The drive mechanism includes a large gear (19), which is fixedly connected to the lead screw (25). The large gear (19) meshes with a small gear (22). A connecting rod is fixedly connected to the center of the small gear (22). The connecting rod is rotatably connected to the vertical plate (12). A worm gear (21) is fixedly connected to the connecting rod. The worm gear (21) meshes with a worm (20). The worm (20) is fixedly connected to a connecting shaft (23). The connecting shaft (23) is rotatably connected to the inner wall of the housing (1).

8. The cable anti-theft alarm device according to claim 7, characterized in that: One end of the connecting shaft (23) extends out of the housing (1) and is fixedly connected to a crank (3).

9. The cable anti-theft alarm device according to claim 1, characterized in that: A door panel (2) is installed on the box body (1), and a handle is provided on the door panel (2).

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