An anti-theft device for transmission lines

Abstract

The present invention discloses an anti-theft device for a transmission line, which includes a cable body. A protective member is arranged on the outer side of the cable body. A positioning plate for positioning the protective member is arranged on the side surface of the protective member. Fasteners are arranged at both ends of the protective member on the outer side of the cable body, and a battery pack is arranged on the side surface of one of the fasteners, and a measuring instrument is arranged on the side surface of the other fastener. An installation cavity is arranged in the positioning plate, and a wire is arranged in the installation cavity. For this anti-theft device for a transmission line, the cable is installed on a wire rack through the arranged protective member. The protective member can effectively improve the structural strength of the cable. When a thief commits a sabotage act, the measuring instrument arranged in the protective member transmits theft information to the outside world, reminding the supervision personnel to arrive at the crime scene for protection and repair. The setting of the protective member increases the difficulty of damaging the cable, buys time for the supervision personnel, and facilitates the anti-theft protection of the cable.

Description

Technical Field

[0001] The present invention relates to the technical field of cable protection, and particularly to an anti-theft device for transmission lines. Background Art

[0002] As one of the important devices for transmitting electricity, cables are often damaged and stolen by lawbreakers due to their high value. Due to insufficient crackdown and imperfect prevention mechanisms, thieves frequently steal cables driven by interests. The damage and theft of transmission cables will have a serious impact on the power system and is not conducive to the development of the national economy. Therefore, it is of great significance to protect cables.

[0003] When building a transmission system at high altitude, it is usually necessary to build a wire rack (tower body) to support the cables. The setting of the wire rack provides a criminal way for thieves. There is a lack of protection at the connection between the cable and the wire rack, and thieves can easily damage the cable at the connection between the cable and the wire rack. Currently, mainly alarm devices are used to deter thieves to play a protective role. The alarm devices are not easy to protect the cable structurally, resulting in poor protection effects. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to overcome the existing defects and provide an anti-theft device for transmission lines. The cable is installed on the wire rack through the provided protective member. The protective member can effectively improve the structural strength of the cable. When a thief commits a destructive act, the measuring instrument provided in the protective member transmits theft information to the outside, reminding the supervisor to arrive at the crime scene for protection and repair. The setting of the protective member increases the difficulty of damaging the cable, buys time for the supervisor, and facilitates the anti-theft protection of the cable, and can effectively solve the problems in the background art.

[0005] To achieve the above object, the present invention provides the following technical solution: An anti-theft device for transmission lines, including a cable body. A protective member is provided on the outer side of the cable body. A positioning plate for positioning it is provided on the side of the protective member. Fasteners are provided at both ends of the protective member on the outer side of the cable body. A battery pack is provided on the side of one of the fasteners, and a measuring instrument is provided on the side of the other fastener. An installation cavity is provided in the positioning plate, and a wire is provided in the installation cavity. The input end of the measuring instrument is electrically connected to the output end of the battery pack through the wire.

[0006] An installation frame is fixed on the side of the protective member. A moving plate is slidably provided in the installation frame. A positioning member for positioning the moving plate in the installation frame is fixed on the outer side of the protective member. An elastic member for positioning the moving plate is provided in the positioning member.

[0007] As a preferred technical solution of the present invention, the protective member includes a protective cylinder sleeved outside the cable body. The protective cylinder is formed by splicing a plurality of arc-shaped protective plates. The positioning plate is arranged near the connection of two adjacent protective plates, and the positioning plate positions and connects two adjacent protective plates.

[0008] As a preferred technical solution of the present invention, the positioning member includes a fixing plate fixed on the outside of the protective plate. A screw rod is slidably arranged on the side surface of the fixing plate. A nut for positioning the screw rod is threadedly connected to the outside of the screw rod. A push plate is arranged at the end of the screw rod, and the push plate is arranged close to the installation frame. The elastic member is located in the installation frame, and the elastic member is arranged between the push plate and the moving plate.

[0009] As a preferred technical solution of the present invention, the fastening member includes symmetrically arranged arc-shaped plates, and the two arc-shaped plates are fixedly connected by bolts. The battery pack and the measuring instrument are both fixedly installed on the outside of the arc-shaped plates.

[0010] As a preferred technical solution of the present invention, it further includes a connecting plate. The protective member is arranged on the connecting plate, and a positioning frame for positioning the protective member is fixed on the side surface of the connecting plate.

[0011] As a preferred technical solution of the present invention, the protective plate, the positioning plate, the installation frame, the moving plate, the connecting plate and the positioning frame are all made of steel structure, and a wear-resistant coating and a waterproof coating are sprayed on the outside.

[0012] As a preferred technical solution of the present invention, it further includes an anti-theft monitoring component; two groups of connecting pieces symmetrically arranged on the outside of the cable body are included in the anti-theft monitoring component. A fastening member fixed on the outside of the cable body is clamped in the connecting piece. The connecting piece includes a sleeve sleeved on the outside of the cable body, and an elastic member is installed between the two sleeves. A detection sensor is fixed on the side surface of one of the sleeves. A protective cylinder for protecting the elastic member and the detection sensor is sleeved between the two sleeves;

[0013] An annular sleeve plate is further sleeved on the outside of the sleeve. Pressure sensors in contact with the side surface of the sleeve are uniformly installed in the annular sleeve plate. A fixing member for positioning the annular sleeve plate is arranged on the outside of the annular sleeve plate.

[0014] As a preferred technical solution of the present invention, the connecting piece includes an annular plate sleeved on the outside of the cable body. The sleeve is fixedly installed on one side of the annular plate. A plurality of clamping plates are fixed on the other side of the annular plate. A positioning plate is fixed on the outside of one of the sleeves. The annular sleeve plate is arranged between the positioning plate and the annular plate.

[0015] As a preferred technical solution of the present invention, the fastener includes a plurality of arc plates arranged on the outer side of the cable body, the clamping plate is arranged near the connection of two adjacent arc plates, and the clamping plate is used for the connection positioning of two adjacent arc plates.

[0016] As a preferred technical solution of the present invention, the fixing member includes a fixing rod fixed on the outer side of the annular sleeve plate, a fixing frame is fixed at one end of the fixing rod away from the annular sleeve plate, and a fixing plate is installed at the end of the fixing frame;

[0017] A protective shell is installed on the fixing frame, a controller is installed in the protective shell, the detection sensor, the control switch corresponding to the detection sensor in the controller and the external power supply are connected in series to form the working circuit of the detection sensor, and the pressure sensor, the control switch corresponding to the pressure sensor in the controller and the external power supply are connected in series to form the working circuit of the pressure sensor;

[0018] The fixing rod is a telescopic rod, and a fastening bolt for adjusting and fixing its length is installed on the outer side of the fixing rod.

[0019] Compared with the prior art, the beneficial effects of the present invention are:

[0020] 1. For the power transmission line anti-theft device exemplified by the present invention, the cable is installed on the wire rack through the provided protective member. The protective member can effectively improve the structural strength of the cable. When a thief attempts to carry out a destructive act, the measuring instrument arranged in the protective member transmits theft information to the outside world, reminding the supervision personnel to arrive at the crime scene for protection and repair. The setting of the protective member increases the difficulty of damaging the cable, buys time for the supervision personnel, and facilitates the anti-theft protection of the cable.

[0021] 2. For the power transmission line anti-theft device exemplified by the present invention, the protective member is arranged on the connecting plate and fixed by the positioning frame. Then, the connecting plate is fixed on the wire rack by bolts or welding. The protective member protects the cable body, preventing thieves from easily damaging the cable body at the connection between the cable body and the wire rack, and facilitating the protection of the cable body.

[0022] 3. For the power transmission line anti-theft device exemplified by the present invention, the battery pack supplies power to the measuring instrument through a wire. When a thief damages the protective member, the wire is disconnected. At this time, the battery pack can no longer supply power to the measuring instrument through the wire, and the measuring instrument stops working. At the same time, the terminal device issues an alarm after detecting no signal from the measuring instrument, facilitating the supervision personnel to go to the crime scene to arrest the thieves.

[0023] 4. For the power transmission line anti-theft device according to the embodiment of the present invention, when a thief damages the protective member from the position of the installation frame, after the moving plate is cut off by the thief, the elastic member pushes the moving plate to move within the installation frame. The two sections of the broken moving plate squeeze the cutting device under the thrust of the elastic member, hindering the operation of the cutting device. After the cutting device moves away from the side of the protective member, the two moving plates are pushed by the elastic member to fill the cut-off position. If the thief continues to cause damage, it is necessary to re-cut the moving plate, increasing the difficulty of damage and facilitating the protection of the cable body. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 is a schematic structural diagram of the present invention;

[0025] Figure 2 is Figure 1 a schematic cross-sectional structural diagram of a single protective member in

[0026] Figure 3 is Figure 2 a schematic enlarged structural diagram of part A in

[0027] Figure 4 is Figure 2 a schematic enlarged structural diagram of part B in

[0028] Figure 5 is a schematic front-cut structural diagram of the present invention;

[0029] Figure 6 is a schematic structural diagram of the present invention;

[0030] Figure 7 is a schematic cross-sectional structural diagram of the anti-theft monitoring component disclosed by the present invention;

[0031] Figure 8 is Figure 7 a schematic enlarged structural diagram of part C in

[0032] Figure 9 is Figure 7 a schematic enlarged structural diagram of part D in

[0033] Figure 10 is a schematic structural diagram of the arc plate in the anti-theft monitoring component disclosed by the present disclosure;

[0034] Figure 11 is a schematic structural diagram of the connecting member in the anti-theft monitoring component disclosed by the present disclosure.

[0035] In the figure: 1 cable body, 2 protective plate, 3 positioning plate, 4 wire, 5 arc plate, 6 battery pack, 7 measuring instrument, 8 mounting frame, 9 moving plate, 10 fixing plate, 11 screw, 12 push plate, 13 nut, 14 elastic member, 15 connecting plate, 16 positioning frame; 101 cable body, 102 arc plate, 103 connecting member, 131 annular plate, 132 clamping plate, 133 sleeve, 104 elastic member, 105 protective cylinder, 106 detection sensor, 107 positioning plate, 108 annular sleeve plate, 181 pressure sensor, 109 fixing rod, 110 fixing bracket, 111 fixing plate, 112 protective shell, 113 controller. Detailed implementation manner

[0036] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0037] Please refer to Figure 1-11 , the present invention provides a technical solution: an anti-theft device for a transmission line, including a cable body 1, a protective member is arranged on the outer side of the cable body 1, a positioning plate 3 for positioning it is arranged on the side of the protective member, fasteners are arranged at both ends of the protective member on the outer side of the cable body 1, and a battery pack 6 is arranged on the side of one of the fasteners, and a measuring instrument 7 is arranged on the side of the other fastener. The fasteners facilitate the installation and use of the battery pack 6 and the measuring instrument 7. An installation cavity is arranged in the positioning plate 3, a wire 4 is arranged in the installation cavity, the input end of the measuring instrument 7 is electrically connected to the output end of the battery pack 6 through the wire 4. The measuring instrument 7 includes but is not limited to a current measuring device or a voltage measuring device. A wireless communication module is arranged in the measuring instrument 7, and the measuring instrument 7 feeds back information to an external terminal device through the wireless communication module.

[0038] The battery pack 6 supplies power to the measuring instrument 7 through the wire 4. When a thief damages the protective member, the wire 4 is disconnected. At this time, the battery pack 6 can no longer supply power to the measuring instrument 7 through the wire 4, and the measuring instrument 7 stops working. At the same time, when the external terminal device fails to detect the signal of the measuring instrument 7, an alarm is issued, which is convenient for the supervision personnel to go to the crime scene to arrest the thief.

[0039] A mounting frame 8 is fixed on the side of the protective member. A moving plate 9 is slidably arranged in the mounting frame 8. A positioning member for positioning the moving plate 9 in the mounting frame 8 is fixed on the outer side of the protective member. An elastic member 14 for positioning the moving plate 9 is arranged in the positioning member. The elastic member 14 includes but is not limited to an engineering spring or an elastic column.

[0040] When a thief damages the protective part at the position of the installation frame 8, the moving plate 9 is cut off by the thief, and then the elastic member 14 pushes the moving plate 9 to move within the installation frame 8. The moving plate 9 that is broken into two sections is pushed by the elastic member 14 to squeeze the cutting device, hindering the operation of the cutting device. When the cutting device moves away from the side of the protective part, the two moving plates 9 are pushed by the elastic member 14 to fill the cut-off part. If the thief continues to cause damage, it is necessary to re-cut the moving plate 9, increasing the difficulty of damage and facilitating the protection of the cable body 1.

[0041] The protective part includes a protective cylinder sleeved outside the cable body 1. The protective cylinder is composed of a plurality of arc-shaped protective plates 2 spliced together. The positioning plate 3 is arranged near the connection of two adjacent protective plates 2, and the positioning plate 3 positions and connects two adjacent protective plates 2. Strip-shaped plates are fixed on both sides of the protective plate 2, and positioning grooves for positioning the strip-shaped plates are formed inside the positioning plate 3. The strip-shaped plates are fixed in the positioning grooves by welding or bonding, facilitating the installation and use of the protective plate 2.

[0042] The positioning member includes a fixing plate 10 fixed on the outside of the protective plate 2. A screw rod 11 is slidably arranged on the side of the fixing plate 10. A nut 13 for positioning it is threadedly connected to the outside of the screw rod 11. A push plate 12 is arranged at the end of the screw rod 11, and the push plate 12 is close to the installation frame 8. The elastic member 14 is located inside the installation frame 8, and the elastic member 14 is arranged between the push plate 12 and the moving plate 9. The elastic member 14 is placed inside the installation frame 8, and the nut 13 on the side of the screw rod 11 is adjusted so that the push plate 12 at the end of the screw rod 11 compresses the elastic member 14 and makes the elastic member 14 in the maximum compression state.

[0043] The fastening member includes symmetrically arranged arc-shaped plates 5, and the two arc-shaped plates 5 are fixedly connected by bolts. The fixed connection method can also be welding. The battery pack 6 and the measuring instrument 7 are both fixedly installed on the outside of the arc-shaped plates 5, facilitating the installation of the battery pack 6 and the measuring instrument 7. The battery pack 6 includes, but is not limited to, lithium batteries or lead-acid batteries, and the battery pack 6 can be powered by solar energy or the cable body 1.

[0044] It also includes a connecting plate 15. The protective part is arranged on the connecting plate 15, and a positioning frame 16 for positioning the protective part is fixed on the side of the connecting plate 15, facilitating the installation of the cable body 1 on the tower. It should be noted that the length of the protective part is preferably 2m - 5m, that is, the distance from the end of the protective part to the wire rack is at least 1m, preventing thieves from damaging the part of the cable body 1 without the protective part.

[0045] Preferably, the protective plate 2, the positioning plate 3, the installation frame 8, the moving plate 9, the connecting plate 15, and the positioning frame 16 are all made of steel structures, and wear-resistant coatings and waterproof coatings are sprayed on the outside.

[0046] When in use:

[0047] The protective plate 2 is arranged outside the cable body 1 and fixed by the positioning plate 3. Then, the arc plate 5 is fixed outside the cable body 1 by bolts. The battery pack 6 on the side of one arc plate 5 is electrically connected to the measuring instrument 7 on the side of the other arc plate 5 through the wire 4 arranged in the positioning plate 3. Finally, the elastic member 14 is placed in the installation frame 8, and the nut 13 on the side of the screw rod 11 is adjusted so that the push plate 12 at the end of the screw rod 11 compresses the elastic member 14 and makes the elastic member 14 in the maximum compression state;

[0048] The protective member is arranged on the connecting plate 15 and fixed by the positioning frame 16. Then, the connecting plate 15 is fixed on the wire rack by bolts or welding. The protective member protects the cable body 1, preventing thieves from easily damaging the cable body 1 at the connection between the cable body 1 and the wire rack, which is convenient for protecting the cable body 1;

[0049] The battery pack 6 supplies power to the measuring instrument 7 through the wire 4. When thieves damage the protective member, the wire 4 is disconnected. At this time, the battery pack 6 can no longer supply power to the measuring instrument 7 through the wire 4, and the measuring instrument 7 stops working. At the same time, the terminal device issues an alarm after detecting no signal from the measuring instrument 7, which is convenient for the supervision personnel to go to the crime scene to arrest the thieves;

[0050] When thieves damage the protective member at the position of the installation frame 8, the moving plate 9 is cut off by the thieves, and then the elastic member 14 pushes the moving plate 9 to move in the installation frame 8. The two cut moving plates 9 are pushed by the elastic member 14 to squeeze the cutting device, hindering the operation of the cutting device. When the cutting device moves away from the side of the protective member, the two moving plates 9 are pushed by the elastic member 14 to fill the cut position. If the thieves continue to damage, they need to cut the moving plate 9 again, increasing the difficulty of damage, which is convenient for protecting the cable body 1.

[0051] For this anti-theft device for transmission lines, the cable is installed on the wire rack through the arranged protective member. The protective member can effectively improve the structural strength of the cable. When thieves carry out damage behavior, the measuring instrument arranged in the protective member transmits theft information to the outside, reminding the supervision personnel to arrive at the crime scene for protection and repair. The setting of the protective member increases the difficulty of damaging the cable, buying time for the supervision personnel and being convenient for anti-theft protection of the cable.

[0052] Such as Figure 7-11As shown, the preferred embodiment of the present invention also designs an anti-theft monitoring component; the anti-theft monitoring component includes two groups of connecting members 103 arranged on the outside of the cable body 101 for the vehicle, and the connecting member 103 is clamped with a fastener fixed to the outside of the cable body 101, and the connecting member 103 includes a sleeve 133 sleeved on the outside of the cable body 101, and an elastic member 104 is installed between the two sleeves 133, and the elastic member 104 includes but is not limited to a spring or an elastic rod. The elastic member 104 applies force to the two connecting members 103 to ensure that the cable body 101 between the two connecting members 103 is in a relaxed state. When the cable When the force acting on the main body 101 increases, the loose cable body 101 between the two connecting parts 103 is in a tensioned state and the distance between them increases, and a detection sensor 106 is fixed to the side of one of the sleeves 133. The detection sensor 106 sends out an alarm signal after detecting the increase in the distance between the two connecting parts 103. A protective tube 105 is provided between the two sleeves 133 to protect the elastic part 104 and the detection sensor 106. The setting of the fasteners, connecting parts and the protective tube 105 plays a certain protective role on the cable body 101, which increases the difficulty of theft and buys time for the supervisory personnel to catch the thief.

[0053] An annular sleeve 108 is also sleeved on the outside of the sleeve 133, and pressure sensors 181 in contact with the side surfaces of the sleeve 133 are evenly installed inside the annular sleeve 108. Fixing parts for positioning the annular sleeve 108 are arranged on the outside of the annular sleeve 108, and the annular sleeve 108 is positioned by the fixing parts. The pressure sensor 181 inside the annular sleeve 108 monitors the swing amplitude of the cable body 101. When the gravity borne by the cable body 101 increases, the cable body 101 moves downward significantly, and the pressure sensor 181 located at the lower inner side of the annular sleeve 108 measures a larger pressure value. By monitoring the swing amplitude of the cable body 101, it is convenient to protect the cable body 101.

[0054] The connecting piece 103 includes an annular plate 131 sleeved on the outside of the cable body 101, a sleeve 133 is fixedly installed on one side of the annular plate 131, and a plurality of clamping plates 132 are fixed on the other side of the annular plate 131. A positioning plate 107 is fixed on the outside of one of the sleeves 133, and an annular sleeve plate 108 is arranged between the positioning plate 107 and the annular plate 131. The positioning plate 107 positions the annular sleeve plate 108 to prevent the annular sleeve plate 108 from driving the pressure sensor 181 to move outside the sleeve 133, thereby facilitating the positioning of the pressure sensor 181.

[0055] The fastener includes several arc plates 102 arranged outside the cable body 101. The clamping plate 132 is arranged near the connection of two adjacent arc plates 102, and the clamping plate 132 is used for the connection and positioning of two adjacent arc plates 102. An anti-slip pad in contact with the outside of the cable body 101 is fixed inside the clamping plate 132. Preferably, there are two arc plates 102. The two arc plates 102 are clamped outside the cable body 101, and then positioned by the clamping plate 132 in the connecting member 103 to ensure that the two arc plates 102 are clamped outside the cable body 101, and at the same time, the positioning and installation of the connecting member 103 are realized.

[0056] The fixing member includes a fixing rod 109 fixed outside the annular sleeve plate 108. A fixing frame 110 is fixed at one end of the fixing rod 109 away from the annular sleeve plate 108. A fixing plate 111 is installed at the end of the fixing frame 110. A tower body for supporting the cable body 101 is built outside the cable body 101. The fixing plate 111 is fixed on the tower body by bolts to position the annular sleeve plate 108, which is convenient for the use of this monitoring device. The fixing plate 111 can also be welded on the tower body for use.

[0057] A protective shell 112 is installed on the fixing frame 110. A controller 113 is installed inside the protective shell 112. The detection sensor 106, the control switch in the controller 113 corresponding to the detection sensor 106, and the external power supply are connected in series to form the working circuit of the detection sensor 106. The pressure sensor 181, the control switch in the controller 113 corresponding to the pressure sensor 181, and the external power supply are connected in series to form the working circuit of the pressure sensor 181. The detection sensor 106 transmits the detection result to the controller 113, and the controller 113 feeds back the detection result to the terminal device. At the same time, the pressure sensor 181 transmits the detection result to the controller 113, and the controller 113 feeds back the detection result to the terminal device, which is convenient for the supervisors to carry out arrest operations.

[0058] The fixing rod 109 is a telescopic rod, and a fastening bolt for adjusting and fixing its length is installed outside the fixing rod 109, which is convenient for installing this monitoring device outside the cable body 101 at different heights for monitoring use.

[0059] The detection sensor 106 used in the present invention includes but is not limited to a distance detection sensor or a pressure detection sensor. The detection sensor 106 is preferably 4C96-HX8O produced by Chengdu Jingruite Technology Co., Ltd. The pressure sensor 181 is preferably the HPT812 ultra-high-precision pressure transmitter produced by Kunshan Yubin Electronic Technology Co., Ltd., etc. They are all common electronic components in the prior art, and their working methods and circuit structures are well-known technologies, which will not be elaborated here.

[0060] Preferably, as Figure 7-11As shown, the preferred embodiment of the anti-theft monitoring component can prevent theft and alarm when passing through. When abnormalities are found, the alarm is triggered in time. After the alarm, it is difficult for thieves to steal cables in a short time based on the anti-theft device itself, which provides time for the police to respond and reduces losses. It will also allow some thieves to escape while the alarm is triggered, avoiding further damage from theft.

[0061] When using:

[0062] The elastic member 104 is placed in a semi-stretched state, and the connector 103 is fixed to the outside of the cable body 101 by a fastener. The elastic member 104 applies force to the two connectors 103 to ensure that the cable body 101 between the two connectors 103 is in a relaxed state. When the force on the cable body 101 increases (the thief applies force to the cable or climbs on the outside of the cable), the relaxed cable body 1 between the two connectors 103 is in a tensioned state. At this time, the detection sensor 106 detects that the distance between the two connectors 103 has changed. The detection sensor 106 transmits the detection result to the controller 113, and the controller 113 feeds back the detection result to the terminal device, and the supervisor implements the arrest operation;

[0063] The pressure sensor 181 in the annular sleeve 108 monitors the swing of the cable body 101. When the gravity on the cable body 101 increases (the thief applies force to the cable or climbs outside the cable), the cable body 101 moves downward greatly, and the pressure sensor 181 located at the lower inner part of the annular sleeve 108 measures a large pressure value. At this time, the pressure sensor 181 transmits the detection result to the controller 113, and the controller 113 feeds back the detection result to the terminal device, and the supervisor implements the arrest operation;

[0064] The detection sensor 106 and the pressure sensor 181 can also monitor the wind force on the cable body 101. The wind force is usually intermittent, and its measured value has a larger fluctuation than the measured value when it is damaged. The supervisor can judge whether the cable body 101 is in a damaged state according to whether there is fluctuation in the monitoring result and the size of the fluctuation difference;

[0065] In addition, the provision of fasteners, connectors and protective tube 105 provides certain protection for the cable body 101. By installing the monitoring device on a tower supporting the cable body 101 through a fixing plate 111, the connection between the cable body 101 and the tower can be protected, preventing thieves from cutting the cable body 101 at the connection between the cable body 101 and the tower, thereby increasing the difficulty of theft and buying time for supervisors to capture the thieves.

[0066] This high-altitude cable monitoring device monitors the use process of the cable according to the swing amplitude and the magnitude of the force. When the monitored data is abnormal, it immediately sends an alarm to the supervisor. At the same time, this monitoring device can protect the connection between the cable and the tower body, increasing the difficulty of damaging the cable and buying time for the supervisor to reach the crime scene. It has a good protection effect, and this detection device can also be used to monitor the swing amplitude of the cable caused by wind, facilitating the protection of the cable.

[0067] The anti-theft monitoring component disclosed in the above preferred embodiment monitors the use process of the cable according to the swing amplitude and the magnitude of the force. When the monitored data is abnormal, it immediately sends an alarm to the supervisor. At the same time, this monitoring device can protect the connection between the cable and the tower body, increasing the difficulty of damaging the cable and buying time for the supervisor to reach the crime scene. It has a good protection effect, and this detection device can also be used to monitor the swing amplitude of the cable caused by wind, facilitating the protection of the cable.

[0068] The anti-theft monitoring component disclosed in the above preferred embodiment makes the elastic member in a semi-stretched state, and fixes the connecting member outside the cable body through the fastener. The elastic member applies force to the two connecting members to ensure that the cable body between the two connecting members is in a relaxed state. When the acting force borne by the cable body increases, the relaxed cable body between the two connecting members is in a tightened state. At this time, the detection sensor detects that the distance between the two connecting members has changed. The detection sensor transmits the detection result to the controller, and the controller feeds back the detection result to the terminal device, and the supervisor implements the capture operation.

[0069] The anti-theft monitoring component disclosed in the above preferred embodiment monitors the swing amplitude of the cable body by the pressure sensor in the annular sleeve plate. When the gravity borne by the cable body increases, the cable body displaces downward by a large amount, and the pressure sensor located at the lower part inside the annular sleeve plate measures a large pressure value. At this time, the pressure sensor transmits the detection result to the controller, and the controller feeds back the detection result to the terminal device, and the supervisor implements the capture operation.

[0070] The settings of the fastener, the connecting member and the protective cylinder in the anti-theft monitoring component disclosed in the above preferred embodiment play a certain protective role for the cable body. Installing this monitoring device on the tower supporting the cable body through the fixing plate can protect the connection between the cable body and the tower, preventing thieves from cutting the cable body at the connection between the cable body and the tower, increasing the difficulty of theft and buying time for the supervisor to capture.

[0071] The parts not disclosed in the present invention are all prior arts, and their specific structures, materials and working principles will not be elaborated further. Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An anti-theft device for a transmission line, comprising a cable body (1), characterized in that: A protective member is provided on the outer side of the cable body (1). A positioning plate (3) for positioning it is provided on the side of the protective member. Fasteners are provided at both ends of the protective member on the outer side of the cable body (1). A battery pack (6) is provided on the side of one of the fasteners, and a measuring instrument (7) is provided on the side of the other fastener. An installation cavity is provided in the positioning plate (3), and a wire (4) is provided in the installation cavity. The input end of the measuring instrument (7) is electrically connected to the output end of the battery pack (6) through the wire (4). An installation frame (8) is fixed to the side of the protective member. A moving plate (9) is slidably provided in the installation frame (8). A positioning member for positioning the moving plate (9) in the installation frame (8) is fixed to the outer side of the protective member. An elastic member (14) for positioning the moving plate (9) is provided in the positioning member. When a thief damages the protective member from the position of the installation frame, after the moving plate is cut off by the thief, the elastic member pushes the moving plate to move in the installation frame. The two cut-off moving plates are pushed by the elastic member to squeeze the cutting device, hindering the operation of the cutting device. When the cutting device moves away from the side of the protective member, the two moving plates are pushed by the elastic member to fill the cut-off part. If the thief continues to cause damage, the moving plate needs to be cut again.

2. The anti-theft device for a power transmission line according to claim 1, wherein: The protective member includes a protective cylinder sleeved on the outer side of the cable body (1). The protective cylinder is composed of a plurality of arc-shaped protective plates (2) spliced together. The positioning plate (3) is provided near the connection of two adjacent protective plates (2), and the positioning plate (3) positions the connection of two adjacent protective plates (2).

3. The anti-theft device for a transmission line according to claim 2, characterized in that: The positioning member includes a fixing plate (10) fixed to the outer side of the protective plate (2). A screw rod (11) is slidably provided on the side of the fixing plate (10). A nut (13) for positioning it is threadedly connected to the outer side of the screw rod (11). A push plate (12) is provided at the end of the screw rod (11), and the push plate (12) is close to the installation frame (8). The elastic member (14) is located in the installation frame (8), and the elastic member (14) is provided between the push plate (12) and the moving plate (9).

4. The anti-theft device for a power transmission line according to claim 1, characterized in that: The fastener includes symmetrically arranged arc-shaped plates (5), and the two arc-shaped plates (5) are fixedly connected by bolts. The battery pack (6) and the measuring instrument (7) are both fixedly installed on the outer side of the arc-shaped plate (5).

5. The anti-theft device for a transmission line according to claim 2, characterized in that: It further includes a connecting plate (15). The protective member is provided on the connecting plate (15), and a positioning frame (16) for positioning the protective member is fixed to the side of the connecting plate (15).

6. The anti-theft device for a transmission line according to claim 5, wherein: The protective plate (2), the positioning plate (3), the installation frame (8), the moving plate (9), the connecting plate (15), and the positioning frame (16) are all made of steel structure, and a wear-resistant coating and a waterproof coating are sprayed on the outer side.

7. A transmission line anti-theft device according to any one of claims 1-6, characterized in that: It also includes an anti-theft monitoring component; in the anti-theft monitoring component, there are two sets of connectors (103) symmetrically arranged outside the cable body (1, 101). A fastener fixed outside the cable body (1, 101) is clamped in the connector (103). The connector (103) includes a sleeve (133) sleeved outside the cable body (1, 101), and an elastic member (104) is installed between the two sleeves (133). A detection sensor (106) is fixed on the side of one of the sleeves (133). A protective cylinder (105) for protecting the elastic member (104) and the detection sensor (106) is sleeved between the two sleeves (133). An annular sleeve plate (108) is also sleeved outside the sleeve (133). Pressure sensors (181) in contact with the side of the sleeve (133) are evenly installed in the annular sleeve plate (108). A fixing member for positioning it is arranged outside the annular sleeve plate (108).

8. The anti-theft device for a power transmission line according to claim 7, characterized in that: The connector (103) includes an annular plate (131) sleeved outside the cable body (1, 101). The sleeve (133) is fixedly installed on one side of the annular plate (131). A plurality of clamping plates (132) are fixed on the other side of the annular plate (131). A positioning plate (107) is fixed on the outside of one of the sleeves (133). The annular sleeve plate (108) is arranged between the positioning plate (107) and the annular plate (131).

9. The anti-theft device for a transmission line according to claim 8, characterized in that: The fastener includes a plurality of arc plates (102) arranged outside the cable body (101). The clamping plates (132) are arranged near the connection of two adjacent arc plates (102), and the clamping plates (132) are used for connecting and positioning two adjacent arc plates (102).

10. A transmission line anti-theft device according to claim 7, characterized in that: The fixing member includes a fixing rod (109) fixed on the outside of the annular sleeve plate (108). A fixing frame (110) is fixed at the end of the fixing rod (109) away from the annular sleeve plate (108). A fixing plate (111) is installed at the end of the fixing frame (110). A protective shell (112) is installed on the fixing frame (110). A controller (113) is installed in the protective shell (112). The detection sensor (106), the control switch corresponding to the detection sensor (106) in the controller (113), and an external power supply are connected in series to form the working circuit of the detection sensor (106). The pressure sensor (181), the control switch corresponding to the pressure sensor (181) in the controller (113), and an external power supply are connected in series to form the working circuit of the pressure sensor (181). The fixing rod (109) is a telescopic rod, and a fastening bolt for adjusting and fixing its length is installed on the outside of the fixing rod (109).

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