A cable safety monitoring alarm device and alarm method

Abstract

This application relates to the field of cable monitoring technology, specifically to a cable safety monitoring and alarm device and method, comprising: a control box, an anti-theft cable, and a voltage transformer. The control box contains a safety monitoring circuit. The anti-theft cable is placed inside a cable protection conduit at the connection point, arranged vertically parallel to the cable inside the conduit. The voltage transformer is sleeved on the cable inside the conduit. The anti-theft cable is connected in series with the safety monitoring circuit, and the voltage transformer is connected to the safety monitoring circuit. When the cable voltage is lower than a preset threshold or the anti-theft cable is disconnected, the safety monitoring circuit triggers an audible and visual alarm and sends an alarm SMS. When the cable voltage recovers, the safety monitoring circuit sends a power restoration SMS after a preset delay. By generating an alarm signal through the breakage of the anti-theft cable, and providing audible, visual, and SMS alarms, it can warn against intentional damage and promptly notify maintenance personnel for emergency repairs.

Description

Technical Field

[0001] This application belongs to the field of cable monitoring technology, specifically relating to a cable safety monitoring alarm device and alarm method. Background Technology

[0002] To enhance urban aesthetics, improve safety, increase land use efficiency, and reduce electromagnetic interference to residents, the shift from overhead to underground cables is a significant trend in urban development and the power industry, aligning with the needs of modern urban development. In urban centers and bustling commercial areas where aesthetics and safety are paramount, underground cables offer greater advantages. However, in remote areas, temporary power supply sites, or cost-sensitive projects, overhead cables still hold considerable value.

[0003] During the transition from overhead to underground cables, numerous connection points arise between the overhead and underground sections. Compared to the overhead cables themselves, these connection points, due to their downward-extending structure, are clearly high-risk cable segments for external damage and theft. Current technology uses protective tubing to shield these connection points, offering some protection, but it clearly cannot prevent external damage by tools and lacks communication and alarm functions, failing to promptly notify maintenance personnel. This is especially true for high-voltage cables, where damage to the protective tubing poses significant economic and personnel safety risks. Summary of the Invention

[0004] This application provides a cable safety monitoring and alarm device and alarm method to solve or partially solve the problems mentioned in the background art.

[0005] This application provides a cable safety monitoring and alarm device, including: a control box, an anti-theft cable and a voltage transformer, wherein the control box is equipped with a safety monitoring circuit; The anti-theft cable is placed inside the cable protection tube of the connection part and is set vertically parallel to the cable inside the protection tube. The voltage transformer is sleeved on the cable inside the tube. The anti-theft cable is connected in series with the safety monitoring circuit, and the voltage transformer is connected to the safety monitoring circuit. When the cable voltage is lower than the preset threshold or the anti-theft cable is disconnected, the safety monitoring circuit will issue an audible and visual alarm and send an alarm SMS. When the cable voltage is restored, the safety monitoring circuit sends a power restoration SMS message after a preset delay.

[0006] Preferably, it also includes a cable routing mechanism for automatically adjusting the routing of the anti-theft cables within the protective tube.

[0007] Preferably, the cable routing mechanism includes an installation sleeve disposed within a protective tube. A drive seat is vertically disposed on the outer periphery of the installation sleeve. A drive groove is formed on the outer end face of the drive seat away from the central axis of the protective tube. A drive screw is disposed in the drive groove. Two sliders with opposite threads are disposed on the drive screw. A connecting frame is disposed on the slider. An upper mounting ring and a lower mounting ring are respectively connected to the opposite end faces of the two upper and lower connecting frames. The upper and lower mounting rings are sleeved on the outer periphery of the installation sleeve and are collinear with the central axis of the installation sleeve. A drive ring is rotatably disposed on the opposite end face. Multiple tension seats are symmetrically and movably disposed on the two drive rings. A clutch pull ring is movably connected between each pair of upper and lower symmetrical tension seats. The clutch pull ring is sleeved on the anti-theft cable. A telescopic lever is disposed on the side of the drive ring near the installation sleeve. The telescopic lever is movably connected to each tension seat on the corresponding drive ring. The control box contains a sub-controller that is electrically connected to the cable routing mechanism.

[0008] Preferably, the mounting sleeve includes a conduit and connecting discs at both ends of the conduit. The connecting discs and the conduit have through holes extending vertically. The diameter of the connecting disc is adapted to the inner diameter of the protective tube and the diameter of the connecting disc is larger than the diameter of the through hole. The connecting discs at both ends are fixedly connected to the inner wall of the protective tube.

[0009] Preferably, the outer periphery of the mounting sleeve is further provided with several guide seats, and a guide groove is provided on the side of the guide seat away from the mounting sleeve. A guide slide rod is provided between the upper and lower end faces of the guide groove, and two connecting brackets that are respectively connected to the upper mounting ring and the lower mounting ring are slidably sleeved on each guide slide rod.

[0010] Preferably, the upper mounting ring and the lower mounting ring are provided with rotating components that drive the driving ring to rotate.

[0011] Preferably, the tensioning seat includes a lever locking seat movably mounted on the drive ring. An extension rod is provided hanging on the lever locking seat, and a pull ring locking seat is provided at the end of the extension rod. A second locking groove is provided on the end face of the lever locking seat facing the mounting sleeve. A first locking groove is provided on the end face of the pull ring locking seat. A first locking mechanism and a second locking mechanism are respectively provided in the first locking groove and the second locking groove. A third locking mechanism is also provided inside the lever locking seat and is movably connected to the drive ring.

[0012] The clutch pull ring includes an annular pull ring body and first locking pins symmetrically arranged on the upper and lower sides of the pull ring body. The first locking pins are movably inserted into the first locking groove and movably connected to the first locking mechanism.

[0013] The telescopic lever includes a telescopic cylinder and a second locking pin disposed at the end of the telescopic shaft of the telescopic cylinder. The second locking pin is movably inserted into the second locking groove and is movably connected to the second locking mechanism.

[0014] Preferably, the anti-theft cable is divided into two sections: one section is a closed section with each clutch pull ring attached, and the other section is divided into two strands connected to the control box. The above-mentioned segmentation is achieved by binding the anti-theft cable to any one of the clutch pull rings. The anti-theft cable is provided with several elastic parts.

[0015] Preferably, the upper and lower mounting rings are provided with a plurality of pressing mechanisms. The pressing mechanism is located on the side of the drive ring near the mounting sleeve and includes a mounting block fixed to the upper or lower mounting ring. The mounting block is provided with an oblique telescopic mechanism. The telescopic shaft end of the oblique telescopic mechanism is provided with an arc-shaped pressure rod. The radius of the arc-shaped pressure rod is adapted to the inner radius of the protective tube. The top of the oblique telescopic mechanism is inclined away from the mounting sleeve.

[0016] This application also provides a cable security monitoring and alarm method, including a dynamic arrangement method for anti-theft cables, the specific steps of which are as follows: S100: The sub-controller acquires the layout task, and the layout task includes the distance d between the upper and lower mounting rings and the position distribution of each tensioning seat and clutch pull ring; S200: First, control the drive screw to drive the upper and lower mounting rings to move towards each other until the clutch pull rings exchange positions, control the action of each first locking mechanism, and complete the position switching between each clutch pull ring and the upper or lower mounting ring according to the position distribution of the clutch pull rings; S300: Controls the coordinated action of each drive ring and telescopic lever, and completes the position movement of each adjustment group tensioning seat according to the position distribution of the tensioning seat; S400: Controls the movement of the drive screw, causing the upper and lower mounting rings to shift to the position corresponding to the distance d.

[0017] Compared with the prior art, the beneficial effects of this application are as follows: (1) The anti-theft cable installed in parallel with the cable in the protection pipe in this application generates an alarm signal by breaking the anti-theft cable, and provides sound, light and SMS alarms. It can warn against intentional damage and promptly notify maintenance personnel for emergency repairs, thereby reducing economic losses and the risk of electric shock to personnel.

[0018] (2) This application uses a cable arrangement mechanism to dynamically adjust the arrangement of anti-theft cables in the protective tube. It can effectively adjust the vertical spacing of the protected parts and the distribution density of anti-theft cables in the horizontal direction, which enhances the protection effect and response speed of the protective tube, especially the protective tube of the high voltage cable connection part, and further reduces economic losses and the risk of electric shock to personnel. Attached Figure Description

[0019] The present application will be further described below with reference to the accompanying drawings and embodiments.

[0020] Figure 1 This is a schematic diagram illustrating one embodiment of the present application. Figure 2 This is a schematic diagram of the external structure of the control box in this application. Figure 3 This is a schematic diagram of the monitoring circuit of this application. Figure 4 This is a front view of the overall structure of the cable routing mechanism in this application. Figure 5 This is a partial enlarged view A of the cable routing mechanism of this application. Figure 6 This is a partial sectional view of the cable routing mechanism of this application. Figure 7 This is a top view of the overall structure of the cable routing mechanism in this application. Figure 8 This is a schematic diagram of the anti-theft cable structure of this application. Figure 9 This is a partial structural diagram of the cable routing mechanism of this application. Figure 10 This is a partial enlarged view B of the cable routing mechanism in this application. Figure 11 This is a partial enlarged view (C) of the cable routing mechanism in this application. Figure 12 This is a schematic diagram illustrating the cable routing mechanism of this application. Figure 1 , Figure 13 This is a schematic diagram illustrating the cable routing mechanism of this application. Figure 2 .

[0021] In the picture: 1. Mounting sleeve; 2. Drive seat; 3. Connecting bracket; 4. Upper mounting ring; 5. Lower mounting ring; 6. Tensioning seat; 7. Clutch pull ring; 8. Anti-theft cable; 9. Pressing mechanism; 10. Guide seat; 11. Drive ring; 12. Telescopic lever; 21. Drive screw; 61. Pull ring locking seat; 62. Extension rod; 63. Lever locking seat; 71. Pull ring body; 72. First locking pin; 81. First elastic part; 82. Second elastic part; 91. Mounting block; 92. Angled telescopic mechanism; 93. Arc-shaped pressure rod; 611. First locking groove; 612. First locking mechanism; 631. Second locking groove; 1001. Guide slide rod; 100. Control box; 200. Connecting cable; 300. Protective tube; 400. Voltage transformer. Detailed Implementation

[0022] The specification and claims use certain terms to refer to specific components. Those skilled in the art will understand that hardware manufacturers may use different names to refer to the same component. This specification and claims do not distinguish components based on differences in name, but rather on differences in function. The term "comprising" throughout the specification and claims is an open-ended term and should be interpreted as "comprising but not limited to." "Approximately" means that within an acceptable margin of error, those skilled in the art can solve the technical problem and substantially achieve the technical effect within a certain margin of error.

[0023] In the description of this application, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "horizontal", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0024] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0025] Example 1 like Figures 1 to 3As shown, this application provides a cable safety monitoring and alarm device, including: a control box 100, an anti-theft cable 8, and a voltage transformer 400, wherein the control box 100 is equipped with a safety monitoring circuit.

[0026] The security monitoring circuit includes a voltage detection sub-circuit, an anti-theft cable detection sub-circuit, an alarm control sub-circuit, an audible and visual alarm sub-circuit, a power restoration delay alarm sub-circuit, a first SMS module, and a second SMS module. The functions of each sub-module are as follows: The voltage detection sub-circuit obtains the voltage signal on the cable through the voltage transformer 400, and obtains the induced electrical energy through the voltage transformer 400 and converts it into DC induced power to power the voltage detection sub-circuit and the first SMS module. The anti-theft cable detection sub-circuit integrates a DC battery power supply, connects in series with 8 anti-theft cables, and powers the alarm control sub-circuit, the sound and light alarm sub-circuit, and the second SMS module. The alarm control sub-circuit is used for the parallel connection of the voltage detection sub-circuit, the anti-theft cable detection sub-circuit, the audible and visual alarm sub-circuit, and the first SMS module. The power restoration delay alarm sub-circuit is used to provide a delayed alarm when power is restored. The audible and visual alarm sub-circuit, the first SMS module, and the second SMS module are used for audible and visual alarms and SMS sending.

[0027] When the cable voltage is lower than the preset threshold or the anti-theft cable 8 is disconnected, the alarm control sub-circuit, the audible and visual alarm sub-circuit, and the second SMS module are powered by the DC battery to trigger an audible and visual alarm and send an alarm SMS through the second SMS module. When the cable voltage is restored, the power restoration delay alarm sub-circuit delays for a preset time and then controls the first SMS module to send a power restoration SMS message.

[0028] like Figure 1 As shown, the application scenario of this application is to protect the connection part of the overhead cable entering the ground. The cable of the connection part is covered with a protective tube 300, which is generally a steel pipe. The anti-theft cable 8 is placed inside the protective tube 300 and is arranged vertically parallel to the cable inside the protective tube 300. The voltage transformer 400 is sleeved on the cable inside the tube. When the protective tube 300 is damaged externally, the anti-theft cable 8 is also cut. The anti-theft cable 8 detection sub-circuit detects that the anti-theft cable 8 is broken and controls the sound and light alarm sub-circuit and the second SMS module to alarm. The control box 100 can be placed in the distribution box or distribution room near the connection part of the overhead cable entering the ground.

[0029] like Figure 2 As shown, the control box 100 is externally equipped with a power switch, power indicator light, mains power indicator light, alarm indicator light, cable voltage transformer interface, mains power sampling interface, anti-theft cable interface, DC battery charging port (DC 12V), and delay reset indicator light, etc. Figure 3 As shown, a schematic diagram of the circuit principle for implementing the above-mentioned safety monitoring circuit function for cable protection under mains voltage is provided.

[0030] Example 2 Based on the above embodiment 1, this application provides a cable safety monitoring and alarm device, such as... Figures 4 to 13 As shown, it also includes a cable routing mechanism for automatically adjusting the routing of the anti-theft cable 8 within the protective tube 300, so as to better protect the cable at the connection point.

[0031] The cable routing mechanism includes a mounting sleeve 1 disposed within a protective tube 300. A drive seat 2 is vertically mounted on the outer periphery of the mounting sleeve 1. A drive groove is formed on the outer end face of the drive seat 2 away from the central axis of the protective tube 300. A drive screw 21 is disposed within the drive groove. Two sliders with opposite threads are disposed on the drive screw 21. Connecting brackets 3 are disposed on the sliders. The opposite end faces of the two upper and lower connecting brackets 3 are respectively connected to an upper mounting ring 4 and a lower mounting ring 5. The upper mounting ring 4... The lower mounting ring 5 is sleeved on the outer periphery of the mounting sleeve 1 and is collinear with the central axis of the mounting sleeve 1. The opposite end face of the ring is rotatably provided with a drive ring 11. Multiple tension seats 6 are symmetrically and movably arranged on the two drive rings 11. Between each pair of symmetrical tension seats 6, there is a clutch pull ring 7 movably connected to it. The clutch pull ring 7 is sleeved on the anti-theft cable 8. A telescopic lever 12 is provided on the side of the drive ring 11 near the mounting sleeve 1. The telescopic lever 12 is movably connected to each tension seat 6 on the corresponding drive ring 11.

[0032] The control box 100 is equipped with a sub-controller that is electrically connected to the cable routing mechanism.

[0033] For the protection of cables with lower voltage levels, since the cable at the connection point is shorter and thinner, the diameter and length of its protective tube 300 are also smaller. In Example 1, the anti-theft cable 8 is set vertically parallel to the cable, which can ensure that when the protective tube 300 is broken, the anti-theft cable 8 will break and issue an alarm signal. However, for the protection of cables with higher voltage levels, the length, height, and diameter of its protective tube 300 are larger, and it is difficult for the double-stranded anti-theft cable 8 to be positioned to correspond with the external breakage of the protective tube 300, resulting in insufficient protection.

[0034] like Figure 4 , 7As shown in Figure 9, the anti-theft cable 8 is threaded through each clutch pull ring 7. The clutch pull ring 7 can be movably connected to the upper and lower tension seats 6. By adjusting the position distribution of each clutch pull ring 7 on the upper and lower tension seats 6, the anti-theft cable 8 can be stretched into a wavy protective net, thereby increasing the coverage of the protective tube 300 and enhancing the sensitivity of external damage protection. The drive screw 21 is used to adjust the distance between the upper mounting ring 4 and the lower mounting ring 5, that is, to determine the protection range of the protective net in the vertical direction. The telescopic lever 12 is used to adjust the distribution of each tension seat 6 on the drive ring 11. In conjunction with the position distribution of the upper and lower tension seats 6 of the clutch pull ring 7, the wave structure of the wavy protective net is adjusted. Most importantly, the density of the "wave" is adjusted, thereby dynamically adjusting the protection range of the protective net.

[0035] Specifically, the installation sleeve 1 includes a conduit 102 and connecting discs 101 disposed at both ends of the conduit 102. The connecting discs 101 and the conduit 102 are provided with through holes 103 extending vertically. The diameter of the connecting discs 101 is adapted to the inner diameter of the protective tube 300 and the diameter of the connecting discs 101 is larger than the diameter of the through holes 103. The connecting discs 101 at both ends are fixedly connected to the inner wall of the protective tube 300. Space is reserved between the protective tube 300 and the conduit 102 for the installation of anti-theft cables 8.

[0036] Specifically, the drive screw 21 includes a screw body and a drive motor. The drive motor is electrically connected to the sub-controller, which drives the screw body to rotate, thereby driving the two sliders to move towards each other or away from each other, thereby dynamically adjusting the distance between the upper mounting ring 4 and the lower mounting ring 5.

[0037] The drive seat 2 is disposed on the outer periphery of the conduit 102. Preferably, the outer periphery of the conduit 102 is also provided with a plurality of guide seats 10. A guide groove is provided on the side of the guide seat 10 away from the conduit 102. A guide slide rod 1001 is provided between the upper and lower end faces of the guide groove. Two connecting frames 3 are slidably sleeved on each guide slide rod 1001 and respectively connected to the upper mounting ring 4 and the lower mounting ring 5. The purpose of the guide seat 10 is to ensure the stability of the upper mounting ring 4 and the lower mounting ring 5 during the lifting process.

[0038] Specifically, the upper mounting ring 4 and the lower mounting ring 5 are provided with a rotating component that drives the drive ring 11 to rotate. The typical structure of the rotating component is that a toothed belt is mounted on the drive ring 11, and a rotary motor and gear are provided. The gear meshes with the toothed belt, and the rotary motor can drive the drive ring 11 to rotate. This application does not limit the structure of the rotating component, as long as its self-rotation function is realized.

[0039] Specifically, the tensioning seat 6 includes a lever locking seat 63 movably mounted on the drive ring 11. An extension rod 62 is provided hanging on the lever locking seat 63, and a pull ring locking seat 61 is provided at the end of the extension rod 62. A second locking groove 631 is provided on the end face of the lever locking seat 63 facing the mounting sleeve 1. A first locking groove 611 is provided on the end face of the pull ring locking seat 61. A first locking mechanism 612 and a second locking mechanism are respectively provided in the first locking groove 611 and the second locking groove 631. A third locking mechanism that is movably connected to the drive ring 11 is also provided inside the lever locking seat 63.

[0040] The clutch pull ring 7 includes an annular pull ring body 71 and first locking pins 72 symmetrically arranged on the upper and lower sides of the pull ring body 71. The first locking pins 72 are movably inserted into the first locking groove 611 and movably connected to the first locking mechanism 612.

[0041] The telescopic lever 12 includes a telescopic cylinder and a second locking pin disposed at the end of the telescopic shaft of the telescopic cylinder. The second locking pin is movably inserted into the second locking groove 631 and is movably connected to the second locking mechanism.

[0042] The method for adjusting the position of the tensioning seat 6 on the drive ring 11 using the telescopic lever 12 is as follows: The sub-controller stores the real-time position distribution of the tension seats 6 on the two drive rings 11. The rotation of the drive ring 11 drives the tension seats 6 to rotate. When the tension seat 6 whose position needs to be adjusted is aligned with the telescopic lever 12, the drive ring 11 stops rotating, the telescopic cylinder of the telescopic lever 12 is activated, and the second locking pin is inserted into the corresponding second locking groove 631. The second locking mechanism in the corresponding second locking groove 631 is fixed to the second locking pin. Then, the third locking mechanism in the corresponding lever locking seat 63 is released, causing the lever locking seat 63 to disengage from the drive ring 11. At this time, the drive ring 11 continues to operate, and the position of the corresponding tension seat 6 on the drive ring 11 changes. After the position change of the tension seat 6 is completed, the drive ring 11 stops, the second locking mechanism releases the second locking pin, the telescopic lever 12 disengages from the drive ring 11, and the corresponding third locking mechanism is activated, causing the lever locking seat 63 to connect with the drive ring 11. After the position change is completed, the sub-controller stores the changed position of the corresponding tension seat 6.

[0043] The method for switching the clutch ring between the upper and lower sets of tensioning seats 6 is as follows: like Figure 4 , 7 As shown in Figures 9 and 12, the two symmetrical tensioning seats 6 and the clutch pull ring 7 between them are set as an adjustment group. The clutch pull ring 7 will only switch between the two tensioning seats 6 in the same adjustment group, as shown in Figures 1, 2, and 3. Figure 12As shown in the figure above, when it is necessary to switch the upper and lower distribution of the clutch pull ring 7, the drive screw 21 drives the upper mounting ring 4 and the lower mounting ring 5 to move closer to each other until the two first locking pins 72 of each clutch pull ring 7 are inserted into the first locking grooves 611 of the two tension seats 6 in the same adjustment group. The upper and lower connection switching of the clutch pull ring 7 is realized through the action of the first locking mechanism 612.

[0044] To simplify the operation process, under normal circumstances, no matter how the position of the tensioning seat 6 is adjusted, the two tensioning seats 6 in the same adjustment group should be aligned vertically, that is, the two tensioning seats 6 should be adjusted synchronously.

[0045] This application does not limit the specific structure of the first locking mechanism 612, the second locking mechanism, and the third locking mechanism, as long as they achieve the function of movable connection between the tensioning seat 6 and the clutch pull ring 7, the telescopic lever 12, and the drive ring 11 as described above. Typically, such as Figure 6 As shown, an implementation structure of a first locking mechanism 612 is illustrated. A pressing and telescopic mechanism is provided on the symmetrical sidewall of the first locking groove 611. A pressing block is provided at the end of the telescopic shaft of the pressing and telescopic mechanism. When the first locking pin 72 is inserted into the first locking groove 611, the two pressing and telescopic mechanisms drive the pressing block to abut against the first locking pin 72, thereby clamping the corresponding first locking pin 72 and connecting the corresponding clutch pull ring 7 to the corresponding tensioning seat 6. Conversely, when the two pressing and telescopic mechanisms drive the pressing block to disengage from the first locking pin 72, the corresponding clutch pull ring 7 is disengaged from the corresponding tensioning seat 6. The second and third locking mechanisms can also be equipped with corresponding pressing and telescopic mechanisms to clamp the second locking pin and the drive ring 11.

[0046] like Figure 4 As shown, this application divides the anti-theft cable 8 into two sections. One section is a closed segment fitted with various clutch pull rings 7, and the other section is divided into two strands connected to the control box 100. This segmentation is achieved by binding the anti-theft cable 8 to any one of the clutch pull rings 7. After segmentation, the composition of the protective net depends entirely on the closed segments. Therefore, the anti-theft cable 8 must possess a certain degree of elasticity to ensure the dynamic change and tension of the protective net's shape. To achieve this elasticity, several elastic parts need to be provided on the anti-theft cable 8, such as… Figure 8 As shown, this application provides two implementations of the elastic part: a first elastic part 81 and a second elastic part 82. The first elastic part 81 is an elastic sleeve that is fitted over the anti-theft cable 8. The length of the anti-theft cable 8 inside the elastic sleeve is greater than the length of the elastic sleeve. The two ends of the elastic sleeve are bonded to the anti-theft cable 8 at the corresponding positions. The second elastic part 82 is an elastic spiral part provided on the anti-theft cable 8, such as the handset connection cable of a landline telephone.

[0047] Choose either the first elastic part 81 or the second elastic part 82 according to the actual situation.

[0048] It is worth noting that when moving the position of the tensioning seat 6 of each adjustment group, the tensioning seat 6 of each segment of the anti-theft cable 8 should be used as the base point, and the position of the tensioning seat 6 of the corresponding adjustment group should be kept as far as possible or the movement distance should be controlled within the preset range.

[0049] Preferably, the upper mounting ring 4 and the lower mounting ring 5 are provided with a plurality of mutually symmetrical pressing mechanisms 9. The pressing mechanisms 9 on each mounting ring are evenly distributed around the central axis of the mounting sleeve 1. The pressing mechanism 9 is located on the side of the drive ring 11 near the mounting sleeve 1 and includes a mounting block 91 fixed to the upper mounting ring 4 or the lower mounting ring 5. The mounting block 91 is provided with an oblique telescopic mechanism 92. The telescopic shaft end of the oblique telescopic mechanism 92 is provided with an arc-shaped pressure rod 93. The radius of the arc-shaped pressure rod 93 is adapted to the inner radius of the protective tube 300. The top of the oblique telescopic mechanism 92 is inclined away from the mounting sleeve 1. The specific setting requirements are as follows: Taking the pressing mechanism 9 located on the lower mounting ring 5 as an example, when the telescopic shaft of the inclined telescopic mechanism 92 retracts to the initial state, the arc-shaped pressure rod 93 is located on the side of the drive ring 11 near the mounting sleeve 1, and its top is lower than the top of each tensioning seat 6. When the telescopic shaft of the inclined telescopic mechanism 92 is fully extended, the arc-shaped pressure rod 93 is tightly fitted with the inner wall of the protective tube 300, and the bottom of the arc-shaped pressure rod 93 is higher than the clutch pull ring 7 located on the lower mounting ring 5. Its telescopic process will not interfere with any tensioning seat 6 or clutch pull ring 7 located on the lower mounting ring 5.

[0050] The pressing mechanism 9 is used to press the upper and lower ends of the anti-theft net made of anti-theft cable 8, so that it is close to the inner wall of the protective tube 300, further enhancing its response speed to external breaking operations.

[0051] The sub-controller can be an industrial computer, and the oblique telescopic mechanism 92, the pressing telescopic mechanism, and the telescopic cylinder can be an electric cylinder.

[0052] Based on the above-mentioned cable safety monitoring and alarm device, this application also provides a cable safety monitoring and alarm method, the specific steps of which are as follows: S1: A voltage transformer 400 is installed on the cable inside the protective tube 300, and an anti-theft cable 8 is installed inside the protective tube 300 parallel to the cable vertically. The voltage transformer 400 and the anti-theft cable 8 are connected to a security monitoring circuit. S2: When the cable voltage is lower than the preset threshold or the anti-theft cable 8 is disconnected, the alarm control sub-circuit, the sound and light alarm sub-circuit, and the second SMS module of the safety monitoring circuit are connected to the DC battery power supply to perform sound and light alarm and send alarm SMS through the second SMS module. When the cable voltage is restored, the power restoration delay alarm sub-circuit delays for a preset time and then controls the first SMS module to send a power restoration SMS message.

[0053] Preferably, the cable security monitoring and alarm method further includes a dynamic arrangement method for anti-theft cables, the specific steps of which are as follows: S100: The sub-controller acquires the layout task, and the layout task includes the distance d between the upper mounting ring 4 and the lower mounting ring 5, as well as the position distribution of each tensioning seat 6 and clutch pull ring 7. S200: First, control the drive screw 21 to drive the upper mounting ring 4 and the lower mounting ring 5 to move towards each other to the clutch pull ring exchange position, control the action of each first locking mechanism 612, and complete the position switching of each clutch pull ring 7 with the upper mounting ring 4 or the lower mounting ring 5 according to the position distribution of the clutch pull ring 7. S300: Controls the coordinated action of each drive ring 11 and telescopic lever 12 to complete the position movement of each adjustment group tensioning seat 6 according to the position distribution of the tensioning seat 6; S400: Controls the movement of the drive screw 21, causing the upper mounting ring 4 and the lower mounting ring 5 to move to the position corresponding to the spacing d.

[0054] In step S200, the clutch pull ring exchange position obviously refers to the position of the upper mounting ring 4 and the lower mounting ring 5 when both first locking pins 72 of each clutch pull ring 7 are inserted into the first locking grooves 611 of the two tension seats 6 in the same adjustment group. In step S300, when moving each tension seat 6, interference with other tension seats 6 should be avoided.

[0055] Figure 12 and Figure 13 Here is a plan view of each tensioning seat 6. Figure 12 The upper part shows the position of the clutch pull ring 7, and the lower part shows one arrangement of the anti-theft cable 8, which is named Arrangement 1. Figure 13 The upper and lower parts also show two arrangement methods, named Arrangement 2 and Arrangement 3. Arrangement 1 is a relatively dense arrangement. Compared with Arrangement 1, Arrangement 2 has a larger vertical spacing between the protective pipe 300 parts, but the density of the "waves" is relatively smaller. Arrangement 3 focuses on the non-uniform treatment of the density of the "waves" at different horizontal angles in the same height area of ​​the protective pipe 300. For locations where there are walls, pits, or other unsuitable places to stand on one side of the protective pipe 300, the relatively high-risk areas can be given priority protection.

[0056] The embodiments of this application have been described in detail above with reference to the accompanying drawings. However, this application is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of this application.

Claims

1. A cable safety monitoring and alarm device, characterized in that, include: The control box (100), the anti-theft cable (8), and the voltage transformer (400) are equipped with a safety monitoring circuit. The anti-theft cable (8) is placed inside the protective tube (300) of the connecting cable (200) and is set vertically parallel to the cable inside the protective tube (300). The voltage transformer (400) is sleeved on the cable inside the tube. The anti-theft cable (8) is connected in series to the safety monitoring circuit. The voltage transformer (400) is connected to the safety monitoring circuit. When the cable voltage is lower than the preset threshold or the anti-theft cable (8) is disconnected, the safety monitoring circuit will issue an audible and visual alarm and send an alarm SMS. When the cable voltage is restored, the safety monitoring circuit sends a power restoration SMS message after a preset delay.

2. The cable safety monitoring and alarm device according to claim 1, characterized in that: It also includes a cable routing mechanism for automatically adjusting the routing of the anti-theft cable (8) within the protective tube (300).

3. The cable safety monitoring and alarm device according to claim 2, characterized in that: The cable routing mechanism includes an installation sleeve (1) disposed within a protective tube (300). A drive seat (2) is vertically mounted on the outer periphery of the installation sleeve (1). A drive groove is formed on the outer end face of the drive seat (2) away from the central axis of the protective tube (300). A drive screw (21) is disposed within the drive groove. Two sliders with opposite threads are disposed on the drive screw (21). A connecting frame (3) is disposed on the slider. An upper mounting ring (4) and a lower mounting ring (5) are respectively connected to the opposite end faces of the two upper and lower connecting frames (3). The mounting ring (5) is sleeved on the outer periphery of the mounting sleeve (1) and is collinear with the central axis of the mounting sleeve (1). The opposite end face is provided with a drive ring (11). Multiple tension seats (6) are symmetrically and movably arranged on the two drive rings (11). Between each pair of symmetrical tension seats (6), there is a clutch pull ring (7) movably connected to it. The clutch pull ring (7) is sleeved on the anti-theft cable (8). A telescopic lever (12) is provided on the side of the drive ring (11) near the mounting sleeve (1). The telescopic lever (12) is movably connected to each tension seat (6) on the corresponding drive ring (11). The control box (100) is equipped with a sub-controller that is electrically connected to the cable routing mechanism.

4. The cable safety monitoring and alarm device according to claim 3, characterized in that: The installation sleeve (1) includes a conduit (102) and connecting discs (101) at both ends of the conduit (102). The connecting discs (101) and the conduit (102) are provided with through holes (103) that run vertically through each other. The diameter of the connecting discs (101) is adapted to the inner diameter of the protective tube (300), and the diameter of the connecting discs (101) is larger than the diameter of the through holes (103). The connecting discs (101) at both ends are fixedly connected to the inner wall of the protective tube (300).

5. The cable safety monitoring and alarm device according to claim 3, characterized in that: The outer periphery of the mounting sleeve (1) is also provided with several guide seats (10). The guide seat (10) is provided with a guide groove on the side away from the mounting sleeve (1). A guide slide rod (1001) is provided between the upper and lower end faces of the guide groove. Two connecting frames (3) are slidably sleeved on each guide slide rod (1001) and connected to the upper mounting ring (4) and the lower mounting ring (5) respectively.

6. A cable safety monitoring and alarm device according to claim 3, characterized in that: The upper mounting ring (4) and the lower mounting ring (5) are equipped with rotating components that drive the driving ring (11) to rotate.

7. A cable safety monitoring and alarm device according to claim 3, characterized in that: The tensioning seat (6) includes a lever locking seat (63) movably mounted on the drive ring (11). An extension rod (62) is provided on the lever locking seat (63). A pull ring locking seat (61) is provided at the end of the extension rod (62). A second locking groove (631) is provided on the end face of the lever locking seat (63) facing the mounting sleeve (1). A first locking groove (611) is provided on the end face of the pull ring locking seat (61). A first locking mechanism (612) and a second locking mechanism are respectively provided in the first locking groove (611) and the second locking groove (631). A third locking mechanism that is movably connected to the drive ring (11) is also provided inside the lever locking seat (63). The clutch pull ring (7) includes an annular pull ring body (71) and first locking pins (72) symmetrically arranged on the upper and lower sides of the pull ring body (71). The first locking pins (72) are movably inserted into the first locking groove (611) and movably connected to the first locking mechanism (612). The telescopic lever (12) includes a telescopic cylinder and a second locking pin disposed at the end of the telescopic shaft of the telescopic cylinder. The second locking pin is movably inserted into the second locking groove (631) and movably connected to the second locking mechanism.

8. The cable safety monitoring and alarm device according to claim 3, characterized in that: The anti-theft cable (8) is divided into two sections. One section is a closed section after each clutch pull ring (7) is fitted on it. The other section is divided into two strands and connected to the control box (100). The above-mentioned segmentation is achieved by binding the anti-theft cable (8) to any clutch pull ring (7). The anti-theft cable (8) is provided with several elastic parts.

9. A cable safety monitoring and alarm device according to claim 3, characterized in that: The upper mounting ring (4) and the lower mounting ring (5) are provided with a plurality of pressing mechanisms (9). The pressing mechanism (9) is located on the side of the drive ring (11) near the mounting sleeve (1) and includes a mounting block (91) fixed to the upper mounting ring (4) or the lower mounting ring (5). The mounting block (91) is provided with an oblique telescopic mechanism (92). The telescopic shaft end of the oblique telescopic mechanism (92) is provided with an arc-shaped pressure rod (93). The radius of the arc-shaped pressure rod (93) is adapted to the inner radius of the protective tube (300). The top of the oblique telescopic mechanism (92) is inclined away from the mounting sleeve (1).

10. A cable safety monitoring and alarm method, characterized in that, This includes a dynamic arrangement method for anti-theft cables, with the following specific steps: S100: The sub-controller acquires the arrangement task, and the arrangement task includes the distance d between the upper mounting ring (4) and the lower mounting ring (5) and the position distribution of each tensioning seat (6) and clutch pull ring (7); S200: First, control the drive screw (21) to drive the upper mounting ring (4) and lower mounting ring (5) to move towards each other to the clutch pull ring exchange position, control the action of each first locking mechanism (612), and complete the position switching of each clutch pull ring (7) with the upper mounting ring (4) or lower mounting ring (5) according to the position distribution of the clutch pull ring (7); S300: Controls the coordinated action of each drive ring (11) and telescopic lever (12) to complete the position movement of each adjustment group tensioning seat (6) according to the position distribution of the tensioning seat (6); S400: Control the drive screw (21) to move, so that the upper mounting ring (4) and the lower mounting ring (5) are displaced to the position corresponding to the spacing d.

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