Electric power iron tower and boundary safety supervision system thereof

Abstract

The invention discloses an electric power iron tower, and relates to the technical field of power transmission and transformation facility management, the electric power iron tower comprises a tower body, the tower body comprises a tower body and a plurality of tower legs used for supporting the tower body, each tower leg comprises a fixed leg body, one end of the fixed leg body is fixed on the tower body, and the other end of the fixed leg body is fixed on the ground; the movable leg body is detachably connected to the side, facing the central axis of the tower body, of the fixed leg body; sliding mechanisms used for guiding the movable leg bodies to move transversely are arranged among the tower legs, one ends of the movable leg bodies are movably connected to the tower body, and the other ends of the movable leg bodies are fixedly connected to the sliding mechanisms. The fixed leg body is provided with a buckling locking device used for buckling the movable leg body, the tower body is provided with a self-weight type hydraulic driving device used for driving the sliding mechanism and the buckling locking device to work, and the tower body is provided with a collision detection mechanism used for detecting tower leg information. The method has the effect of improving the use safety of the electric iron tower.

Description

Technical Field

[0001] This application relates to the field of power transmission and transformation facility management technology, and in particular to a power transmission tower and its boundary safety monitoring system. Background Technology

[0002] In the process of power transmission and transformation, high voltage and ultra-high voltage power transmission technologies are usually used because power needs to be transmitted over long distances and across regions. If the high voltage cable is located at a low position, the magnetic field interference it generates is greater and the probability of residents coming into contact with the cable is high, which poses a great safety risk. Therefore, tall power towers are generally built to support high voltage power lines.

[0003] Currently, many cities and towns retain large areas of agricultural land, which means that many power transmission and transformation networks pass through farmland, meaning that power towers are built in or near fields. Traditionally, agricultural planting is mainly done manually, so after safety warning signs are put up on the power towers, they generally do not cause damage to them.

[0004] However, with the advancement of centralized contracted planting of farmland and mechanized agricultural operations, the protective effect of the above methods on power transmission towers has decreased, and there are frequent cases of power transmission towers being damaged by planting machinery and other equipment, leading to safety accidents. Therefore, this application proposes a new technical solution. Summary of the Invention

[0005] To improve the safety of power transmission towers, this application provides a power transmission tower and its boundary safety monitoring system.

[0006] In the first aspect, this application provides a power transmission tower, which adopts the following technical solution:

[0007] A power transmission tower includes a tower body, the tower body comprising a tower frame and a plurality of tower legs for supporting the tower frame, the tower legs comprising:

[0008] The legs are fixed, with one end fixed to the tower body and the other end fixed to the ground; and,

[0009] The movable leg is detachably connected to the fixed leg on the side facing the central axis of the tower.

[0010] A sliding mechanism is provided between the multiple tower legs to guide the lateral movement of the movable legs. One end of the movable leg is movably connected to the tower body, and the other end is fixedly connected to the sliding mechanism. A fastening lock is installed on the fixed leg to engage the movable leg. A self-weight hydraulic drive device is installed on the tower body to drive the sliding mechanism and the fastening lock, and a collision detection mechanism is provided to detect tower leg information.

[0011] Optionally, the self-weight hydraulic drive device includes a water tank, a drain pipe, a hydraulic push rod, and a force divider protector. The water tank is installed on the tower body and has a cover hinged to the top. Multiple electrically controlled drain valves, each corresponding to one tower leg, are installed at the bottom. One end of the drain pipe is connected to an electrically controlled drain valve, and the other end extends downward.

[0012] There are multiple hydraulic push rods, and the sliding mechanism is matched with at least one hydraulic push rod, and each latching lock is matched with at least one hydraulic push rod;

[0013] The drain pipe is connected to multiple branch pipes that are respectively matched with each snap-locking device, and the hydraulic push rod corresponding to the snap-locking device is connected to the branch pipe.

[0014] The number of force protectors is the same as that of the branch pipes and they correspond one-to-one. The force protectors are installed on the drain pipe and connected to the branch pipes; the hydraulic push rod corresponding to the sliding mechanism is connected to the lower end of the drain pipe.

[0015] When the upper force protector is activated and water is supplied to the corresponding branch pipe, the adjacent force protector is activated in conjunction with it.

[0016] Optionally, the force-shaping protector includes an isolation plate, a central shaft, a pin, and a linkage unit. The central shaft passes laterally through the central axis of the drain pipe and is fixedly connected to the drain pipe. The isolation plate is adapted to the inner cross-section of the drain pipe and is divided into two to form a semi-circular plate. The pin passes through the drain pipe from the outside to the inside. One straight side of the semi-circular plate is hinged to the central shaft, and the opposite side overlaps with the pin. The linkage unit is installed on a branch pipe and is used to pull the pin outward after water enters the branch pipe.

[0017] Optionally, the latching device includes a base, a hook plate, a slip ring, and a pull rod, wherein the base is fixed to the side wall of the fixed leg and extends a crossbar to one side; the slip ring is sleeved on the crossbar and is slidably connected; one end of the hook plate is hinged to the base, and the other end is bent and folded at the edge of the movable leg; one end of the pull rod is hinged to the slip ring, and the other end is hinged to the outside of the hook head bend of the hook plate.

[0018] Secondly, this application provides a border security monitoring system, which adopts the following technical solution:

[0019] A boundary security monitoring system includes a self-weight hydraulic drive device applied to a power tower as described in any of the above and a collision detection mechanism for detecting tower leg information, and also includes a local controller and a background management center connected to the local controller, wherein the local controller is electrically connected to an electric drain valve of the self-weight hydraulic drive device.

[0020] The collision detection mechanism includes a camera and a vibration sensor electrically connected to a local controller. The local controller is configured to upload video data from the camera and vibration detection data from the vibration sensor, and to receive and respond to background commands.

[0021] The backend management center is configured as follows:

[0022] Risk feature identification and location based on video data;

[0023] If abnormalities are found in the video data, risk characteristics are identified and located based on vibration sensors.

[0024] If the current risk characteristics information meets the preset collision conditions, control data of the gravity-driven hydraulic device is sent to the local controller to separate one or more movable legs from the fixed legs and move them to a preset position below the tower.

[0025] Optionally, the tank cover is funnel-shaped and equipped with a passive water supply pipe extending into the water tank. The passive water supply pipe is a T-junction, with one end facing into the water tank and equipped with a water supply valve, and the other end connected to a drain pipe. The drain pipe extends laterally out of the water tank and is connected to a normally open solenoid valve. A level gauge is installed in the water tank. The water supply valve, normally open solenoid valve, and level gauge are electrically connected to a local controller. The local controller is configured as follows:

[0026] If the liquid level information fed back by the liquid level gauge matches the preset low water level information, then local meteorological data is obtained.

[0027] If the meteorological data matches the preset water replenishment weather, the water replenishment valve will be opened and the normally open solenoid valve will be switched to the closed state.

[0028] Optionally, the local controller is electrically connected to a pressurizing mechanism and a position sensing unit. The pressurizing mechanism includes a pump connected to a drain pipe. The position sensing unit is installed on a locking device and a sliding mechanism. The local controller is configured to: if it receives control data from a gravity-driven hydraulic device and the liquid level information fed back by the level gauge meets any of the preset low water level information, or the action positions of the locking device and the sliding mechanism do not meet any of the preset standard positions, then control the pump to work.

[0029] Optionally, the local controller is electrically connected to an audible and visual alarm unit, and the local controller is configured as follows:

[0030] Retrieve video recognition results from the backend management center;

[0031] If a risk characteristic is identified, the sound and light warning unit will issue a sound and light warning message.

[0032] In summary, this application includes the following beneficial technical effects: In daily operation, the locking device locks the movable leg to the fixed leg, forming a unified structure, ensuring the stable support of the tower body by each leg. When the collision detection mechanism detects that a machine or other object is about to collide with or is about to collide with a particular tower leg, a self-weight hydraulic drive device is activated to release the locking device on the corresponding tower leg, causing the movable leg to move towards a preset position below the tower body. This prevents personnel from accelerating and passing under the tower, reducing the probability of damage to the tower structure. Furthermore, even if a machine does collide with a tower leg, only the fixed leg is damaged; the movable leg has already been disengaged and can temporarily cooperate with other intact tower legs to maintain tower stability, thereby effectively reducing the probability of power tower collapse and safety accidents, and improving operational safety. Attached Figure Description

[0033] Figure 1 This is a schematic diagram of the overall structure of the power transmission tower in this application;

[0034] Figure 2 This is a partial structural diagram of a power transmission tower;

[0035] Figure 3 yes Figure 2 A partial structural diagram;

[0036] Figure 4 This is a schematic diagram of the latching locking device;

[0037] Figure 5 This is a partial structural diagram of a gravity-driven hydraulic device.

[0038] Figure 6 This is a schematic diagram of the system's control structure.

[0039] Explanation of reference numerals in the attached drawings: 1. Tower body; 11. Foundation structure; 2. Tower leg; 21. Fixed leg; 22. Movable leg; 3. Sliding mechanism; 31. Slide rail; 32. Slider; 4. Fastening locking device; 41. Base; 42. Hook plate; 43. Slip ring; 44. Tie rod; 5. Self-weight hydraulic drive device; 51. Water tank; 511. Electric drain valve; 52. Drain pipe; 521. Branch pipe; 53. Hydraulic push rod; 54. Force divider protector; 541. Isolation plate; 542. Central shaft; 543. Pin shaft; 544. Linkage unit; 6. Collision detection mechanism; 61. Camera; 62. Vibration sensor; 71. Water supply valve; 72. Normally open solenoid valve; 73. Level gauge; 81. Pressurization mechanism; 82. Position sensing unit; 9. Audible and visual warning unit. Detailed Implementation

[0040] The following is in conjunction with the appendix Figures 1-6 This application will be described in further detail.

[0041] This application discloses a power transmission tower.

[0042] Reference Figure 1 and Figure 2 The power transmission tower includes a tower body and a load-bearing structure fixed to the tower body for installing power transmission and transformation cables. The load-bearing structure includes insulators, grounding down conductors, grounding devices, etc. The tower body includes a tower body 1 and multiple tower legs 2. The tower body 1 is a vertically extending steel structure component, and a horizontal support structure 11 is fixed at its bottom. In this embodiment, there are four tower legs 2, which are evenly installed at the bottom of the support structure 11.

[0043] Reference Figure 2 and Figure 3 It should be noted that a key feature of this application is that it minimizes the impact on the original support strength of the power tower and further enhances its stability against external impacts and damage, reducing the likelihood of tilting or collapsing. Therefore, the shape of the tower leg 2 area is similar to that of a conventional power tower under normal conditions. Specifically, tower leg 2 includes:

[0044] The fixed leg 21 is set at an angle, with its upper end close to the inside and fixed to the bottom of the support structure 11, and its lower end fixed with a horizontal plate. The horizontal plate is fixed with an anchor rod, which is cast in the ground with concrete.

[0045] The movable leg 22 is detachably connected to the fixed leg 21 on the side facing the central axis of the tower.

[0046] The fixed leg 21 is L-shaped with its opening facing the central axis of the tower. The movable leg 22 is normally hidden inside the opening of the fixed leg 21 and works together with the fixed leg 21 to form a whole for support.

[0047] A sliding mechanism 3 is installed below the pier structure 11. The number of sliding mechanisms 3 is the same as that of the tower legs 2. The four sliding mechanisms 3 are respectively arranged along the diagonal of the four tower legs 2, close to the centerline of the tower body 1. The lower end of the movable leg 22 is mounted on the sliding mechanism 3 for driving.

[0048] Four tracks for relative sliding mechanisms 3 are provided at the lower part of the pier structure 11, and grooves are formed along the length direction of the tracks; the upper end of the movable leg 22 is formed with a plug-in column, which slides and connects to the groove.

[0049] Reference Figure 4 , Figure 5 and Figure 6 A fastening locking device 4 for fastening the movable leg 22 is installed on the fixed leg 21. A self-weight hydraulic drive device 5 for driving the sliding mechanism 3 and the fastening locking device 4 is installed on the tower body 1. A collision detection mechanism 6 for detecting information of the tower leg 2 is also provided.

[0050] How to use:

[0051] In daily operation, the locking device 4 locks the movable leg 22 to the fixed leg 21 to form a whole, ensuring that each tower leg 2 stably supports the tower body 1. When the collision detection mechanism 6 detects that a machine or other object is about to collide with or is about to collide with a tower leg 2, the self-weight hydraulic drive device 5 is activated to release the locking device 4 on the corresponding tower leg 2, causing the movable leg 22 to move towards a preset position below the tower body 1. This prevents some personnel from accelerating and passing under the tower body, reducing the probability of the tower structure being damaged by collision. On the other hand, if a machine does collide with a tower leg 2, only the fixed leg 21 will be damaged by the impact, while the movable leg 22 will have already been released. Moreover, it can temporarily cooperate with other intact tower legs 2 to maintain the stability of the tower body 1, thereby effectively reducing the probability of safety accidents caused by the collapse of the power tower and improving the safety of use.

[0052] In this application, it is considered that power transmission towers are long-term public infrastructure with long service life and are located in the field. Therefore, if the drive sliding mechanism 3 is a type of screw, the stability and reliability of the equipment are not good. For this reason, a self-weight hydraulic drive device 5 that mainly relies on self-weight triggering and hydraulic drive is adopted. Specifically, it includes a water tank 51, a drain pipe 52, a hydraulic push rod 53, and a force protector 54.

[0053] The water tank 51 can be a split structure evenly distributed on the tower body 1 to reduce the impact of its own weight on the structural strength of the tower body 1, or it can be a simpler integrated structure. In this embodiment, an integrated structure is used as an example. It is fixed to the inside of the tower body 1 by a number of connecting brackets. Electric drain valves 511 corresponding to each tower leg 2 are installed at the bottom of the water tank 51.

[0054] The main body of the drain pipe 52 is roughly vertical, with its upper end connected to the electric drain valve 511, meaning that one drain pipe 52 corresponds to one electric drain valve 511; the other end of the drain pipe 52 extends downward toward the sliding mechanism 3.

[0055] There are multiple hydraulic push rods 53. In this embodiment, a large hydraulic push rod 53 corresponds to a sliding mechanism 3, and a small hydraulic push rod 53 corresponds to a latching lock 4.

[0056] It is understandable that each tower leg 2 is equipped with multiple locking devices 4 along its length, so each drain pipe 52 connects to multiple branch pipes 521, and each branch pipe 521 supplies water to one locking device 4.

[0057] It should be noted that the above usage process has already explained that the locking device 4 must be released before the movable leg 22 moves. Therefore, when the water tank 51 is filled with water, the water cannot be allowed to go directly to the bottom at the beginning. Therefore, this application also provides the above-mentioned force protector 54.

[0058] The number of force divider protectors 54 is the same as that of branch pipes 521 and they correspond one-to-one. The force divider protectors are installed on the drain pipe 52 and connected to the branch pipe 521. When the force divider protector 54 at the top is turned on and water is supplied to the corresponding branch pipe 521, the adjacent force divider protector 54 is turned on in conjunction.

[0059] As can be seen from the above, this application has a lower dependence on motors, and instead relies on the weight of the water body at a high position and the impact of water pressure to drive the locking device 4 to loosen and the sliding mechanism 3 to move. It is more suitable for long-term outdoor use, less prone to damage, and has higher equipment stability.

[0060] Reference Figure 5 In one embodiment of this application, the force protector 54 includes an isolation plate 541, a central shaft 542, a pin 543, and a linkage unit 544.

[0061] The central shaft 542 is radially arranged and fixedly connected to the drain pipe 52. The isolation plate 541 is adapted to the cross-section of the inner cavity of the drain pipe 52 and is divided into two to form a semi-circular plate. The pin 543 is inserted into the drain pipe from the outside to the inside. One straight side of the semi-circular plate is hinged to the central shaft and the opposite side is overlapped with the pin 543. There are two pins 543, corresponding to two semi-circular plates. The linkage unit 544 is installed with the branch pipe 521 and is used to pull the pin 543 outward after water enters the branch pipe 521.

[0062] According to the above settings, the water entering the drain pipe 52 does not flow directly to the bottom all at once. Instead, it is temporarily blocked by each force protector 54, allowing the water to enter its corresponding branch pipe 521 to activate the front latching stopper 4 before continuing downward. This ensures that the movable leg 22 is released first before it moves.

[0063] Regarding the linkage unit 544, for example: a rope, one end of which is fixed to the outer end of the pin 543, and the other end is fixed to the piston rod of the hydraulic push rod 53. Thus, when the piston rod moves outward, it pulls the pin 543 out gradually.

[0064] It is understandable that the pin 543 should not be completely pulled out, so a sealing block with a larger diameter is fixed at its end, and the sealing block abuts against the inner edge of the pin hole after the corresponding hydraulic push rod 53 moves into place; at this time, the circular edge of the semi-circular plate has a notch that matches the sealing block or a sealing ring is provided on the outer wall.

[0065] To make the rope pulling smoother, a fixed pulley can be installed on the locking device 4 as a guide wheel, allowing the rope to pass around the fixed pulley for smoother pulling.

[0066] Reference Figure 3 In one embodiment of this application, the hydraulic push rod 53 is a piston sleeve structure; the sliding mechanism 3 includes a transverse slide rail 31 and a slider 32 slidably connected to the slide rail 31.

[0067] Regarding the hydraulic push rod 53 and the sliding mechanism 3, for example: the main body of the hydraulic push rod 53 is hidden in the side opening groove of the slide rail 31, its piston rod is parallel to the length of the sliding mechanism 3, and the outer end of the movable rod is close to the central axis of the tower body 1 and fixed to the slider 32, which is a long structure; the inner cavity of the main body of the hydraulic push rod 53 is connected to the drain pipe 52.

[0068] After the force protector 54 on the drain pipe 52 completes its work, the water flows to the hydraulic push rod 53 at the tail of the sliding mechanism 3. Under the action of high water pressure and its own weight, the piston rod moves, which in turn moves the slider 32, thereby moving the movable leg 22. To reduce the moving resistance of the movable leg 22, a rotating roller is preferably connected inside the slider 32, which is why the upper part of the movable leg 22 is a column.

[0069] Reference Figure 4 In one embodiment of this application, the latching device 4 includes a base 41, a hook plate 42, a slip ring 43, and a pull rod 44.

[0070] The base 41 is fixed to the side wall of the fixed leg 21 and extends a crossbar to one side, with the outer end of the crossbar turned upside down; the slip ring 43 is fitted onto the crossbar and is slidably connected; one end of the hook plate 42 is hinged to the base 41 and the other end is bent and folded at the edge of the movable leg 22; one end of the pull rod 44 is hinged to the slip ring 43 and the other end is hinged to the outside of the hook head bend of the hook plate 42.

[0071] Based on the above, the hydraulic push rod 53 corresponding to the locking device 4 has its main body parallel crossbar fixed to the base 41, the outer end of the piston rod is fixed to the slip ring 43, and the inner cavity of the main body is connected to the branch pipe 521.

[0072] When in use, after water enters the aforementioned hydraulic push rod 53, the piston rod moves outward, causing the slip ring 43 to move outward, so as to pull the hook plate 42 through the pull rod 44 to release the movable leg body 22.

[0073] Reference Figure 6 In one embodiment of this application, the collision detection mechanism 6 includes a camera 61 and a vibration sensor 62. The camera 61 can be one or more; if it is a single camera, it can be suspended from the bottom of the support structure 11 and use a fisheye camera to provide a more comprehensive view of the surroundings. There are multiple vibration sensors 62, with at least one fixed to each fixed leg 21. These sensors can be used to detect and provide feedback on the status of the fixed leg 21 after the camera 61 fails; they can also be used to detect information that the camera 61 cannot detect.

[0074] This application also discloses a border security monitoring system.

[0075] Reference Figure 6The boundary security monitoring system includes the self-weight hydraulic drive device 5 of the aforementioned power tower and the collision detection mechanism 6 for detecting tower leg information, and also includes a local controller and a background management center connected to the local controller.

[0076] The local controller can be an MCU controller, which is installed in a cabinet on the tower body 1 and electrically connected to the electric drain valve 511 of the self-weight hydraulic drive device 5, thereby enabling the control of water discharge from the water tank 51.

[0077] The local controller is also electrically connected to the aforementioned camera 61 and vibration sensor 62. In order to upload data, the local controller should integrate a wireless communication module, such as a 4G / 5G module, to connect to the back-end management center, which includes a server host established by the power tower management unit.

[0078] Based on the above, the local controller is configured to: upload video data from camera 61 and vibration detection data from vibration sensor 62, and receive and respond to background commands.

[0079] Correspondingly, the backend management center is configured as follows:

[0080] 1) Risk feature identification and location based on video data;

[0081] It is understandable that video data recognition requires first parsing into images, such as extracting frames from a video to form images, and then recognizing the images. In this embodiment, the risk characteristics refer to the identification of agricultural machinery and vehicles. Image recognition is an existing technology and will not be described in detail here.

[0082] Regarding positioning, taking an image taken from above as an example, the pixel distance from the risk feature to tower leg 2 is calculated, and then converted to the actual distance using a preset scale.

[0083] 2) If the video data is abnormal (e.g., video cannot be obtained, or there are no risk features in the video), risk features will be identified and located based on the vibration sensor 62;

[0084] The risk characteristics at this time are: the vibration frequency and amplitude exceed the preset threshold; and the location refers to: determining which tower leg 2 is at risk by using the data-bound device ID and the pre-uploaded installation records.

[0085] 3) If the current risk characteristics information meets the preset collision conditions, such as the appearance of agricultural machinery at a distance less than the collision warning distance, the control data of the self-weight hydraulic drive device 5 is sent to the local controller to cause one or more movable legs 22 to separate from the fixed legs 21 and move to a preset position below the tower body 1.

[0086] Based on the above settings, this system can automatically monitor the area around the power tower. When the power tower is at risk of collision or damage, it can promptly control the movable legs 22 to adjust their position, protect the structural integrity of the power tower, maintain the tower's upright position, and improve the safety performance of the power tower.

[0087] In another embodiment of this application, the collision conditions include the volume of the risk feature and the predicted movement path;

[0088] Example: In the image recognition stage, the volume is estimated based on the number of pixel blocks occupied by the feature. If the volume is too small, it is considered not to meet the conditions, and the moving leg body 22 will not move when no collision occurs.

[0089] The direction of movement is predicted by the positional changes of adjacent time features; if the direction of movement is towards tower 1 within a specified distance from tower 1, then the condition is met.

[0090] Based on the above settings, the probability of system misjudgment can be reduced and maintenance costs can be decreased. Since the movable leg 22 needs to be manually reset after it moves, note that the hydraulic push rod 53 should have an external drain pipe with a manual valve installed on it to facilitate manual reset.

[0091] In one embodiment of this application, the lid of the water tank 51 is funnel-shaped and is equipped with a passive water supply pipe that extends into the water tank. The passive water supply pipe is a T-shaped pipe, with one end facing the inside of the water tank and equipped with a water supply valve 71, and the other end connected to a drain pipe. The drain pipe extends laterally out of the water tank and is connected to a normally open solenoid valve 72.

[0092] A level gauge 73 (e.g., a float level gauge) is installed in water tank 51. The water supply valve 71, normally open solenoid valve 72, and level gauge 73 are electrically connected to a local controller. The local controller is configured as follows:

[0093] If the liquid level information fed back by the liquid level gauge 73 matches the preset low water level information, then (based on the pre-stored geographical location via network) the local meteorological data will be obtained.

[0094] If the meteorological data matches the preset water replenishment weather (e.g., rainy day), then control the water replenishment valve 71 to open and the normally open solenoid valve 72 to switch to the closed state.

[0095] Based on the above settings, this system can automatically replenish water using the natural environment during use, so as to prevent the liquid level from becoming too low due to water vapor evaporation, which would cause the system to malfunction. This results in better system stability and lower costs.

[0096] In one embodiment of this application, the local controller is electrically connected to a pressurizing mechanism 81 and a position sensing unit 82. The pressurizing mechanism 81 includes a pump connected to the drain pipe 52, for example, a water pump connected to a tap water network or other water source. The position sensing unit 82 may be a proximity sensor, which is installed on the inner side of the slide rail 31 and the outer end of the crossbar of the locking device 4, to detect whether the movable leg 22 has moved into place and whether the hook plate 42 has opened.

[0097] The local controller is configured as follows:

[0098] If control data from the self-weight hydraulic drive device 5 is received, and the liquid level information fed back by the level gauge 73 meets any of the preset low water level information, or the action positions of the latching lock 4 and the sliding mechanism 3 do not meet any of the preset standard positions, then the pump is controlled to work.

[0099] Based on the above settings, this system can reduce the probability of functional failure caused by prolonged drought and insufficient thrust of the hydraulic actuator 53.

[0100] In another embodiment of this system, the local controller is electrically connected to an audible and visual warning unit 9, such as multiple flashing lights installed on each tower leg 2 and a speaker installed on the tower body 1; the local controller is configured as follows:

[0101] Retrieve video recognition results from the backend management center;

[0102] If a risk characteristic is identified, the sound and light warning unit 9 will issue a sound and light warning message.

[0103] Based on the above settings, this system does not directly move the movable leg 22 every time. Instead, it will first warn people near the tower body 1 when a risk occurs, thus making the system more effective.

[0104] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A power transmission tower, comprising a tower body, said tower body including a tower frame (1) and a plurality of tower legs (2) for supporting the tower frame (1), characterized in that, The tower leg (2) includes: The fixed leg (21) has one end fixed to the tower body (1) and the other end fixed to the ground; and, Movable leg (22), which is detachably connected to the fixed leg (21) on the side facing the central axis of the tower; A sliding mechanism (3) for guiding the lateral movement of the movable leg (22) is provided between multiple tower legs (2). One end of the movable leg (22) is movably connected to the tower body (1), and the other end is fixedly connected to the sliding mechanism (3). A fastening lock (4) for fastening the movable leg (22) is installed on the fixed leg (21). A self-weight hydraulic drive device (5) for driving the sliding mechanism (3) and the fastening lock (4) is installed on the tower body (1), and a collision detection mechanism (6) for detecting tower leg (2) information is provided.

2. The power transmission tower according to claim 1, characterized in that: The self-weight hydraulic drive device (5) includes a water tank, a drain pipe (52), a hydraulic push rod (53), and a force protector (54). The water tank (51) is installed on the tower body (1) and has a cover hinged to the top. Multiple electrically controlled drain valves corresponding to one tower leg (2) are installed at the bottom. One end of the drain pipe (52) is connected to the electrically controlled drain valve, and the other end extends downward. There are multiple hydraulic push rods (53), and the sliding mechanism (3) is matched with at least one hydraulic push rod (53), and each latching lock (4) is matched with at least one hydraulic push rod (53). The drain pipe (52) is connected to multiple branch pipes (521) that are respectively matched with each snap-locking device (4), and the hydraulic push rod (53) corresponding to the snap-locking device (4) is connected to the branch pipe (521). The number of the force divider protectors (54) is the same as that of the branch pipes (521) and they correspond one-to-one. The force divider protectors (54) are installed on the drain pipe (52) and connected to the branch pipes (521); the hydraulic push rod (53) corresponding to the sliding mechanism (3) is connected to the lower end of the drain pipe. When the upper force protector (54) is opened and water is supplied to the corresponding branch pipe (521), the adjacent other force protector (54) is activated in conjunction.

3. The power transmission tower according to claim 2, characterized in that: The force protector (54) includes an isolation plate (541), a central shaft (542), a pin (543), and a linkage unit (544). The central shaft (542) passes laterally through the central axis of the drain pipe and is fixedly connected to the drain pipe. The isolation plate (541) is adapted to the cross-section of the inner cavity of the drain pipe and is divided into two to form a semi-circular plate. The pin (543) passes through the drain pipe from the outside to the inside. One straight side of the semi-circular plate is hinged to the central shaft (542), and the opposite side overlaps the pin (543). The linkage unit (544) is equipped with a branch pipe (521) and is used to pull the pin (543) outward after water enters the branch pipe (521).

4. The power transmission tower according to claim 2, characterized in that: The latching device (4) includes a base (41), a hook plate (42), a slip ring (43), and a pull rod (44). The base (41) is fixed to the side wall of the fixed leg body (21) and extends a crossbar to one side. The slip ring (43) is sleeved on the crossbar and is slidably connected. One end of the hook plate (42) is hinged to the base (41), and the other end is bent and folded at the edge of the movable leg body (22). One end of the pull rod (44) is hinged to the slip ring (43), and the other end is hinged to the outside of the hook head bend of the hook plate (42).

5. A border security monitoring system, characterized in that: It includes a self-weight hydraulic drive device (5) applied to the power tower as described in any one of claims 2-4 and a collision detection mechanism (6) for detecting information of the tower leg (2), and also includes a local controller and a background management center connected to the local controller, wherein the local controller is electrically connected to the electric drain valve (511) of the self-weight hydraulic drive device (5). The collision detection mechanism (6) includes a camera (61) and a vibration sensor (62) electrically connected to a local controller. The local controller is configured to upload video data from the camera (61) and vibration detection data from the vibration sensor (62), and to receive and respond to background instructions. The backend management center is configured as follows: Risk feature identification and location based on video data; If the video data is abnormal, risk characteristics are identified and located based on the vibration sensor (62); If the current risk characteristics information meets the preset collision conditions, the control data of the self-weight hydraulic drive device (5) is sent to the local controller to cause one or more movable legs (22) to separate from the fixed legs (21) and move to a preset position below the tower body (1).

6. The border security monitoring system according to claim 5, characterized in that: The tank cover is funnel-shaped and equipped with a passive water supply pipe extending into the water tank (51). The passive water supply pipe is a three-way pipe, with one end facing the inside of the water tank (51) and equipped with a water supply valve (71), and the other end connected to a drain pipe. The drain pipe extends horizontally out of the water tank (51) and is connected to a normally open solenoid valve (72). A level gauge (73) is installed in the water tank (51). The water supply valve (71), the normally open solenoid valve (72), and the level gauge (73) are electrically connected to a local controller. The local controller is configured as follows: If the liquid level information fed back by the liquid level gauge (73) matches the preset low water level information, then local meteorological data is obtained; If the meteorological data matches the preset water replenishment weather, the water replenishment valve (71) is opened and the normally open solenoid valve (72) is switched to the closed state.

7. The border security monitoring system according to claim 6, characterized in that: The local controller is electrically connected to a pressurizing mechanism (81) and a position sensing unit (82). The pressurizing mechanism (81) includes a pump connected to a drain pipe (52). The position sensing unit (82) is installed on a locking device (4) and a sliding mechanism (3). The local controller is configured to: if it receives control data from a gravity-driven hydraulic device (5) and the level information fed back by the level gauge (73) meets any of the preset low water level information, or the action positions of the locking device (4) and the sliding mechanism (3) do not meet any of the preset standard positions, then it controls the pump to work.

8. The border security monitoring system according to claim 5, characterized in that: The local controller is electrically connected to an audible and visual alarm unit (9), and the local controller is configured as follows: Retrieve video recognition results from the backend management center; If a risk feature is identified, the sound and light warning unit (9) will issue a sound and light warning message.

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