Self-separating ice blasting device and method

Abstract

The application discloses a self-separation type blasting deicing device and a blasting deicing method, and belongs to the technical field of overhead wire deicing, wherein the self-separation type blasting deicing device comprises a connecting piece and clamping arms hingedly connected to the bottom of the connecting piece, side plates are arranged on the two sides of the connecting piece, and when the two clamping arms are closed, the connecting piece can be stably clamped on the overhead wire in cooperation with the side plates; a driving piece matched with the clamping arms is arranged on the connecting piece, and the driving piece is elastically matched with the connecting piece; compared with the existing blasting deicing device, the clamping arms of the application do not need to be additionally provided with an independent opening and closing trigger mechanism, and the automatic locking and unlocking between the clamping arms and the overhead wire can be realized by using the transmission path switching of the constraint cylinder self gravity.

Description

Technical Field

[0001] This invention relates to the field of overhead power line de-icing technology, and in particular to a self-separating explosive de-icing device and explosive de-icing method. Background Technology

[0002] Overhead power transmission and distribution lines are exposed to the outdoor natural environment for a long time. In low temperature and rainy or snowy weather, cable icing is very likely to occur. Icing will greatly increase the load on the cables, which will not only easily cause changes in cable sag, tower tilting or even tower collapse and line breakage, but also affect the stability and safety of power transmission. Therefore, timely and effective de-icing of overhead power lines is a key part of the winter operation and maintenance of the power system.

[0003] Currently, the industry has developed various technical methods to address the problem of ice accumulation on overhead power lines, including manual knocking, robotic de-icing, DC de-icing, and blasting de-icing. Among these, blasting de-icing has become one of the mainstream technologies for de-icing live overhead power lines due to its advantages of not requiring power outages, high operational efficiency, and good effectiveness in dealing with solid ice.

[0004] In the prior art, such as the invention patent with authorization announcement number CN119560965B, a de-icing device and de-icing method with a guide tube are disclosed. This technology uses the impact force generated by the blasting power unit to drive the overhead power line to swing and shake off the ice. It adopts a hoisting and mounting structure with upper and lower clamping frames and guide feet, and combines the mounting separation unit to separate the equipment before blasting. It effectively solves the problems of high risk of traditional manual de-icing and poor effect of drone knocking de-icing, and at the same time realizes live de-icing operation.

[0005] However, the existing devices still have shortcomings in actual operation: the clamping and separating actions of the clamping arms rely on the linkage of many transmission components such as the basket control assembly, actuator, transmission assembly, coil spring, and baffle plate, resulting in a complex overall mechanical structure and numerous transmission links; moreover, these clamping and separating mechanisms all rely on electronic control components or multi-step mechanical structures for triggering, which not only significantly increases the overall weight and volume of the device, making it difficult to adapt to the lightweight lifting requirements of small drones, but also makes the on-site installation, debugging, and operation processes more cumbersome, reducing the overall efficiency of de-icing operations.

[0006] In summary, existing blasting de-icing devices suffer from problems such as complex structure and numerous transmission links. There is an urgent need to develop a blasting de-icing device with a simplified structure, reliable operation, and simple clamping and separation triggering methods to meet the needs of efficient and safe de-icing operations for overhead power transmission and distribution lines. Summary of the Invention

[0007] The purpose of this invention is to provide a self-separating explosive de-icing device and explosive de-icing method to solve the technical problems mentioned in the background art.

[0008] Based on the above ideas, the present invention provides the following technical solution: a self-separating explosive de-icing device, comprising a connector and clamping arms hinged to both sides of the bottom of the connector. Side plates are provided on both sides of the connector. When the two clamping arms are closed, they cooperate with the side plates to securely clamp the connector onto the overhead power line. The connector is provided with a driving component adapted to the clamping arms, and the driving component elastically cooperates with the connector. By the driving component moving linearly relative to the clamping arms, the opening and closing actions of the clamping arms can be controlled.

[0009] The connector is equipped with a constraint cylinder for filling explosive filler. The gravity of the constraint cylinder can be selectively transferred to the connector or the drive component. When the explosive filler in the constraint cylinder is ignited, the gravity of the constraint cylinder switches to act on the drive component, thereby driving the two sets of clamping arms to move away from each other, realizing the automatic separation of the device from the overhead power line.

[0010] As a further aspect of the present invention: the driving component includes a slide rod, which passes through and slides with the connecting member, and a guide member is provided at one end of the slide rod that passes downward through the connecting member.

[0011] As a further aspect of the present invention: the clamping arm is provided with a guide straight groove and a guide inclined groove that are interconnected. The guided member can slide in the guide straight groove and the guide inclined groove. When the guided member slides in the guide straight groove, the two clamping arms are in a closed state. When the guided member slides upward from the guide straight groove into the guide inclined groove, the pressure of the guided member on the side wall of the guide inclined groove can drive the two sets of clamping arms to move away from each other.

[0012] As a further aspect of the present invention: a fixing ring is provided on the connector, and the fixing ring is sleeved on the outside of the constraint cylinder. An annular rotating member is provided on the inner side of the fixing ring, and the rotating member elastically engages with the fixing ring along its own circumferential direction. A protrusion is provided on the outer peripheral wall of the constraint cylinder, and the protrusion elastically engages with the constraint cylinder along the diameter direction of the constraint cylinder. An inclined limiting groove and a limiting straight groove communicating with the limiting groove are provided on the inner wall of the rotating member. The depth of the limiting straight groove is greater than the depth of the limiting inclined groove, and the limiting straight groove is parallel to the axis of the rotating member. Initially, the protrusion is located in the limiting inclined groove.

[0013] As a further embodiment of the present invention: two sets of guide rods are fixedly installed on the outer circular surface of the constraint cylinder, and a connecting plate is fixedly installed between the two sets of sliding rods. The connecting plate has a through hole for the constraint cylinder to pass through, and the inner wall of the through hole has a groove that slides with the guide rod. A limit block is detachably connected to one end of the guide rod near the connector.

[0014] As a further aspect of the present invention: a hook is connected to the top of the slide bar, so that the connector can be suspended on the bottom of the drone.

[0015] As a further aspect of the present invention: the top end of the rotating component is provided with a chamfer, and the protrusion can contact the chamfer during the process of the constraint cylinder being inserted into the rotating component.

[0016] As a further aspect of the present invention: the connector is provided with a remotely controllable ignition assembly, which can ignite the deflagration packing inside the confinement cylinder via a lead wire.

[0017] As a further aspect of the present invention: a boss is fixedly installed at one end of the slide rod that passes downward through the connector, the guided member is installed on the boss, and an elastic member is provided between the boss and the connector.

[0018] A method for de-icing using the above-mentioned self-separating explosive de-icing device includes the following steps: a connecting piece is hoisted to the overhead power line by a drone and locked to the overhead power line by a clamping arm; after the drone separates from the connecting piece, the connecting piece and the constraint cylinder deflect to the underside of the overhead power line, and the deflagration filler in the constraint cylinder is ignited. The impact force generated by the deflagration drives the overhead power line to swing, thereby eliminating the ice on the overhead power line.

[0019] Compared with the prior art, the beneficial effects of the present invention are as follows: Compared with the existing explosive de-icing device, the clamping arm of the present invention does not require an additional independent opening and closing triggering mechanism. By utilizing the transmission path switching of the constraint cylinder's own gravity, the automatic locking and unlocking between the clamping arm and the overhead power line can be achieved. At the same time, after the device is separated from the drone, the constraint cylinder can naturally swing to the underside of the overhead power line, so that the thrust generated after the deflagration filler is ignited can be accurately applied to the cable in the vertical direction. Since the complex electronic control triggering components and multi-stage mechanical transmission structure in the existing device are eliminated, the clamping arm opening and closing is achieved by relying on simple mechanical logic, which greatly reduces the setting of transmission components and electronic control components, making the device more stable in operation and more convenient to operate. Attached Figure Description

[0020] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0021] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0022] Figure 2 This is the present invention. Figure 1 A magnified structural diagram at point A.

[0023] Figure 3 This is a three-dimensional schematic diagram of the device of the present invention being clamped onto an overhead power line.

[0024] Figure 4 This is a plan view of the two clamping arms of the present invention in the open state.

[0025] Figure 5This is a schematic diagram showing the positions of the constraint cylinder and the ignition assembly of the present invention.

[0026] Figure 6 This is a planar schematic diagram of the two clamping arms of the present invention in a locked state.

[0027] Figure 7 This is a schematic diagram of the constraint cylinder of the present invention deflected below the overhead power line.

[0028] Figure 8 This is a schematic diagram of the clamping arm of the present invention detaching from the overhead power line.

[0029] Figure 9 This is a schematic diagram of the rotating component structure of the present invention.

[0030] Figure 10 This is a schematic diagram of the bump structure of the present invention.

[0031] Figure 11 This is a schematic diagram of the stop structure of the present invention.

[0032] In the diagram: 1. Overhead power line; 2. Connector; 201. Fixing ring; 202. Guide cylinder; 203. Side plate; 3. Rotating component; 301. Limiting inclined groove; 302. Limiting straight groove; 303. Chamfer; 4. Constraint cylinder; 401. End cap; 402. Guide rod; 4021. Limiting block; 403. Protrusion; 5. Sliding rod; 6. Connecting plate; 7. Guided component; 8. Clamping arm; 801. Guide straight groove; 802. Guide inclined groove; 9. Pin; 10. Ignition assembly; 11. Elastic component; 12. Stop component. Detailed Implementation

[0033] like Figures 1-11 As shown, the self-separating explosive de-icing device disclosed in this invention mainly includes a connector 2 and clamping arms 8 symmetrically arranged on both sides of the bottom of the connector 2; combined with Figures 1-3 As shown, side plates 203 are fixed on both sides of the connector 2, and a pin 9 passes through the two sets of side plates 203. The pin 9 passes through the clamping arm 8, allowing the clamping arm 8 to rotate around the pin 9, thereby clamping and releasing the overhead power line 1. A constraint cylinder 4 for filling with explosive filler is fitted to the top of the connector 2. An end cap 401 is fitted to the end of the constraint cylinder 4 away from the connector 2, and the end cap 401 is fixed to the constraint cylinder 4 by adhesive bonding. In actual operation, the device is lifted by a drone to the designated de-icing position of the overhead power line 1. The two sets of clamping arms 8 achieve a stable connection between the device and the overhead power line 1. Then, the explosive filler inside the constraint cylinder 4 is ignited remotely. The reverse thrust generated during the explosive combustion process causes the overhead power line 1 to vibrate, and the vibration removes the ice covering the surface of the overhead power line 1. The explosive filler is essentially gunpowder, such as black powder.

[0034] Combination Figure 1 , Figures 3-6 As shown, drive members are symmetrically arranged on both sides of the top of the connector 2. By having the drive members move linearly relative to the clamping arm 8, precise control of the opening and closing action of the clamping arm 8 can be achieved. Specifically, the drive member includes a slide rod 5, which passes through the connector 2 and forms a sliding engagement with it. Figure 5 As shown, a guide cylinder 202 is fixedly installed on the connector 2, and the slide rod 5 passes through the guide cylinder 202 and slides with it. A boss is fixedly provided at one end of the slide rod 5 extending downwards from the connector 2. A rod-shaped guided member 7 is mounted on the boss, and the arrangement direction of the guided member 7 is perpendicular to the side plate 203. The clamping arm 8 has interconnected guide straight grooves 801 and guide inclined grooves 802. The guided member 7 can slide along the trajectory formed by the two grooves, thereby cooperating to realize the opening and closing of the clamping arm 8. Figure 5 As shown, when the guided component 7 is within the guide groove 801, the two sets of clamping arms 8 are in a closed state, which can securely clamp the entire device to the outside of the overhead power line 1; as Figure 1 As shown, when the guided component 7 slides upward from the guide straight groove 801 into the guide inclined groove 802, the guided component 7 will exert lateral pressure on the side wall of the guide inclined groove 802, causing the two sets of clamping arms 8 to move away from each other and enter an open state, so that the clamping arms 8 can be connected with the overhead power line 1.

[0035] Furthermore, an elastic element 11 is provided between the boss and the connecting member 2. In this embodiment, the elastic element 11 is a limiting spring, and the limiting spring is sleeved on the outside of the slide rod 5. This structure can realize the automatic linkage of the opening and closing action of the clamping arm 8. The specific working process is as follows: when the UAV lifts the entire device through the slide rod 5, the overall weight of the connecting member 2, clamping arm 8, constraint cylinder 4 and other components acts on the limiting spring, causing the limiting spring to be compressed, driving the slide rod 5 to slide relative to the connecting member 2, thereby keeping the two sets of clamping arms 8 in the open state (see details). Figure 1 When the drone lowers the device to the designated position, with the two sets of clamping arms 8 positioned outside the overhead power line 1 and the side plate 203 abutting against the top of the overhead power line 1, the sliding rod 5 moves closer to the overhead power line 1 as the drone continues to lower. During this process, the guided component 7 slides from the guide inclined groove 802 into the guide straight groove 801, causing the two sets of clamping arms 8 to move closer together, achieving a stable clamping of the entire device to the overhead power line 1. After the drone and the entire device are completely separated, the center of gravity of the entire device is located above the overhead power line 1, and it will naturally sway under the action of external wind force and eventually reach a certain position. Figure 7 The inverted state shown allows the reverse thrust generated by the ignition of the deflagration packing inside the constraint cylinder 4 to act in the vertical direction, with the line of force passing through the overhead power line 1. This causes the overhead power line 1 to vibrate and swing efficiently in the vertical direction, greatly improving the effect of removing ice.

[0036] Because the constraint cylinder 4 remains connected to the connector 2, even when the entire device is inverted, the sliding rod 5 can maintain a stable engagement with the connector 2, effectively preventing the clamping arm 8 from unlocking unexpectedly. To achieve automatic separation of the clamping arm 8 from the overhead power line 1 after de-icing by blasting, this design makes the constraint cylinder 4 and connector 2 a detachable connection structure. The gravity transmission path can be switched with the blasting action. Specifically, in the initial state, the constraint cylinder 4 is connected to the connector 2. When the UAV hoists the entire device, the gravity of the constraint cylinder 4 acts on the limiting spring along with the connector 2, helping to compress the limiting spring and ensuring that the clamping arm 8 remains open, facilitating docking between the device and the overhead power line 1. When the deflagration filler inside the constraint cylinder 4 is ignited, the impact force generated by the blast pushes the constraint cylinder 4 to shift, changing the gravity transmission path and directly acting on the sliding rod 5. Figure 8 As shown, when the weight of the constraint cylinder 4 acts on the slide rod 5, it will cause the boss at the end of the slide rod 5 to compress the limiting spring again, thereby pushing the guided part 7 from the guide straight groove 801 into the guide inclined groove 802, causing the two sets of clamping arms 8 to move away from each other to achieve unlocking, so that the whole device can be successfully separated from the overhead power line 1.

[0037] The connector 2 is provided with a fixing ring 201, which can be fixedly connected to the connector 2, and the fixing ring 201 is sleeved on the outside of the constraint cylinder 4.

[0038] Furthermore, an annular rotating member 3 is provided on the inner side of the fixed ring 201, and the rotating member 3 elastically engages with the fixed ring 201 along its own circumference; see reference. Figure 3 , Figures 9-10 As shown, a protrusion 403 is provided on the outer peripheral wall of the constraint cylinder 4 near its end. The protrusion 403 elastically engages with the constraint cylinder 4 along its diameter. An inclined limiting groove 301 and a limiting straight groove 302 communicating with the limiting groove 301 are formed on the inner wall of the rotating member 3. The end of the limiting straight groove 302 away from the limiting groove 301 extends to the end face of the rotating member 3. It should be noted that the depth of the limiting straight groove 302 is greater than the depth of the limiting groove 301, and the limiting straight groove 302 is parallel to the axis of the rotating member 3. Initially, the protrusion 403 is located within the limiting groove 301, and a certain distance is maintained between the constraint cylinder 4 and the connecting member 2. With this structure, when the constraint cylinder 4 moves toward the side closer to the connector 2, the constraint cylinder 4 needs to overcome the elastic force between the rotating member 3 and the fixed ring 201, which helps to maintain the relative stability of the constraint cylinder 4 and the connector 2.

[0039] To restrict the rotation of the constraint cylinder 4, this solution has two sets of guide rods 402 fixedly installed on the outer circular surface of the constraint cylinder 4. The two sets of guide rods 402 are symmetrically distributed about the axis of the constraint cylinder 4. A connecting plate 6 is fixedly installed between the two sets of sliding rods 5. The connecting plate 6 has a through hole for the constraint cylinder 4 to pass through, and the inner wall of the through hole has a groove that slides with the guide rod 402, thereby restricting the constraint cylinder 4 from rotating along its own circumference.

[0040] Combination Figures 1-2 , Figure 8 As shown, the guide rod 402 is detachably connected to a limiting block 4021 at one end near the connector 2. The limiting block 4021 can be connected to the guide rod 402 by screws or the like.

[0041] In summary, in the initial state of the device, the protrusion 403 is embedded in the limiting groove 301, and the elastic force between the rotating part 3 and the fixed ring 201 can limit the rotation of the rotating part 3, thereby ensuring the stability of the connection between the constraint cylinder 4 and the connecting part 2. When the UAV lifts the entire device to the designated position of the overhead power line 1, and the clamping arm 8 completes the stable clamping of the overhead power line 1, the entire device will naturally tilt. Figure 7 The inverted state is shown. At this time, the staff starts the ignition operation remotely to ignite the deflagration packing inside the constraint cylinder 4. As the gas pressure inside the constraint cylinder 4 rises sharply, the end cap 401 at its end is torn apart and separated from the constraint cylinder 4. The reverse force generated by the deflagration pushes the constraint cylinder 4 to move closer to the overhead power line 1, causing the overhead power line 1 to vibrate violently, thus achieving efficient cleaning of the ice on its surface.

[0042] Simultaneously, as the constraint cylinder 4 moves towards the overhead power line 1 under the force of the deflagration, the protrusion 403 on its outer wall slides along the limiting groove 301, exerting a squeezing force on the side wall of the limiting groove 301. This pushes the rotating component 3 to overcome the elastic force between itself and the fixed ring 201, causing it to rotate relative to the fixed ring 201. When the protrusion 403 slides to the junction of the limiting groove 301 and the limiting straight groove 302, because the depth of the limiting straight groove 302 is greater than that of the limiting groove 301, the protrusion 403 is further ejected and inserted into the limiting straight groove 302 under elastic action, achieving complete separation of the constraint cylinder 4 and the connecting component 2. Figure 8 As shown, after the constraint cylinder 4 separates from the connector 2, it continues to move away from the connector 2 until the limiting block 4021 is in contact with the connecting plate 6, and its movement trajectory is restricted. At this time, the weight of the constraint cylinder 4 acts entirely on the connecting plate 6 and is transmitted to the slide rod 5, which drives the boss at the end of the slide rod 5 to compress the limiting spring, pushes the guided part 7 from the guide straight groove 801 into the guide inclined groove 802, and then drives the two sets of clamping arms 8 to move away from each other and unlock, so that the whole device can be successfully separated from the overhead wire 1, realizing the self-separation action of the device.

[0043] Compared to existing de-icing devices, the clamping arm 8 of this invention does not require an additional independent opening and closing triggering mechanism. By switching the transmission path of the constraint cylinder 4's own gravity, the clamping arm 8 and the overhead power line 1 can be automatically locked and unlocked. At the same time, after the device is separated from the drone, the constraint cylinder 4 can naturally swing to the bottom of the overhead power line 1, so that the thrust generated after the deflagration filler is ignited can be accurately applied to the cable in the vertical direction.

[0044] The technical solution of this invention eliminates the complex electronic triggering components and multi-stage mechanical transmission structure of existing devices. It relies on simple mechanical logic to realize the opening and closing of the clamping arm 8, which greatly reduces the setting of transmission components and electronic control components, making the device more stable in operation. At the same time, the gravity-driven opening and closing method of the clamping arm 8 can realize the opening and locking of the clamping arm 8 through its own lowering action during the drone hoisting process. The operation process is simpler and the technical requirements of the drone operator are lower. It can realize the rapid docking and stable locking of the device with the overhead power line 1. In addition, from the locking of the clamping arm 8 to the deflagration de-icing and then to the self-separation of the device, the entire process is realized through the natural cooperation of the mechanical structure and the orderly transmission of gravity and deflagration thrust. No additional power source is required, realizing the multiple utilization of a single power source and making the overall operation process of the device more efficient.

[0045] Combination Figure 1 As shown, the top of the slide bar 5 is threaded with a hook, which makes it easy to hoist the entire device to the bottom of the drone. The hoisting structure between the drone and the device can be selected from the existing technology, which will not be described in detail here.

[0046] Combination Figure 1 , Figure 3 , Figure 5 as well as Figure 11 As shown, the clamping arms 8 are generally L-shaped, and the overall width of one clamping arm 8 is smaller than the width of the other clamping arm 8, so that the two clamping arms 8 can be positioned... Figure 5 The clamping state is shown (the narrower clamping arm 8 is located inside the wider clamping arm 8). Further, from... Figure 11 As can be seen, a stop 12 is fixed at the bottom of the wider clamping arm 8. When the two clamping arms 8 are closed, the stop 12, in cooperation with the narrower clamping arm 8, prevents the two clamping arms 8 from excessively pressing the overhead power line 1, thus helping to protect the overhead power line 1. Figure 3 As shown, when the two clamping arms 8 clamp the overhead power line 1, the entire device can be completely locked onto the overhead power line 1 through cooperation with the side plate 203.

[0047] like Figure 9As shown, the top of the rotating part 3 can be provided with a chamfer 303. During the installation of the constraint cylinder 4, the protrusion 403 on the side wall of the constraint cylinder 4 can contact and be squeezed by this chamfer 303, which is conducive to the insertion of the constraint cylinder 4 into the rotating part 3. When the protrusion 403 coincides with the limiting groove 301, the protrusion 403 can be inserted into the limiting groove 301, thereby realizing the detachable connection between the constraint cylinder 4 and the connecting part 2.

[0048] like Figure 10 As shown, the constraint cylinder 4 is provided with a groove for mounting the protrusion 403, and a spring is connected between the groove and the protrusion 403 so that the protrusion 403 and the constraint cylinder 4 are elastically engaged.

[0049] like Figure 5 As shown, the connector 2 is equipped with an ignition assembly 10, which enables remote ignition of the deflagration packing inside the constraint cylinder 4 by personnel on the ground, eliminating the need for high-altitude operations and significantly improving the safety and convenience of de-icing operations. Considering that the constraint cylinder 4 is a movable structure relative to the connector 2, a circular hole for the lead wire to pass through is specially opened at the closed end of the constraint cylinder 4, and the circular hole is sealed to ensure that the lead wire can be smoothly connected to the deflagration packing inside the constraint cylinder 4, while preventing the deflagration packing from getting damp or leaking. After the lead wire of the ignition assembly 10 passes through the sealed circular hole, it connects to the deflagration packing inside the cylinder, forming a stable ignition conduction path.

[0050] The ignition assembly 10 adopts a remote electronic control triggering mode. It is wirelessly connected to the ground control terminal. After the staff sends the ignition command through the control terminal on the ground, the ignition assembly 10 receives the signal and instantly generates a high-temperature spark. The high-temperature spark is quickly conducted to the deflagration packing inside the constraint cylinder 4 through the lead wire, igniting the deflagration packing and triggering its rapid deflagration reaction, thereby generating a reverse thrust that drives the overhead power line 1 to vibrate.

[0051] The above-disclosed examples are merely preferred embodiments of this application, intended to facilitate understanding and implementation by those skilled in the art. However, they cannot be used to limit the scope of this application. Therefore, equivalent variations made within the scope of this application are still within the scope of this application.

Claims

1. A self-separating explosive de-icing device, comprising a connector (2) and clamping arms (8) hinged to both sides of the bottom of the connector (2), wherein both sides of the connector (2) are provided with side plates (203), and when the two clamping arms (8) are closed, they can cooperate with the side plates (203) to securely clamp the connector (2) onto the overhead power line (1); characterized in that: The connector (2) is provided with a drive component that is adapted to the clamping arm (8), and the drive component is elastically engaged with the connector (2). By the drive component moving linearly relative to the clamping arm (8), the opening and closing actions of the clamping arm (8) can be controlled. The connector (2) is equipped with a constraint cylinder (4) for filling explosive filler. The gravity of the constraint cylinder (4) can be selectively transferred to the connector (2) or the drive unit. When the explosive filler in the constraint cylinder (4) is ignited, the gravity of the constraint cylinder (4) is switched to the drive unit, thereby driving the two sets of clamping arms (8) to move away from each other, so as to realize the automatic separation of the device from the overhead power line (1). The driving component includes a slide rod (5), which passes through the connector (2) and slides therewith. A guide member (7) is provided at one end of the slide rod (5) that passes downward through the connector (2). The clamping arm (8) is provided with a guide straight groove (801) and a guide inclined groove (802) that are interconnected. The guided member (7) can slide in the guide straight groove (801) and the guide inclined groove (802). When the guided member (7) slides in the guide straight groove (801), the two clamping arms (8) are in a closed state. When the guided member (7) slides upward from the guide straight groove (801) to the guide inclined groove (802), the pressure of the guided member (7) on the side wall of the guide inclined groove (802) can drive the two sets of clamping arms (8) to move away from each other. The connector (2) is provided with a fixing ring (201), and the fixing ring (201) is sleeved on the outside of the constraint cylinder (4). The inner side of the fixing ring (201) is provided with a ring-shaped rotating member (3), and the rotating member (3) is elastically engaged with the fixing ring (201) along its own circumferential direction. The outer peripheral wall of the constraint cylinder (4) is provided with a protrusion (403), and the protrusion (403) is elastically engaged with the constraint cylinder (4) along the diameter direction of the constraint cylinder (4). The inner wall of the rotating member (3) is provided with an inclined limiting groove (301) and a limiting straight groove (302) connected to the limiting groove (301). The depth of the limiting straight groove (302) is greater than the depth of the limiting groove (301), and the limiting straight groove (302) is parallel to the axis of the rotating member (3). Initially, the protrusion (403) is in the limiting groove (301). Two sets of guide rods (402) are fixedly installed on the outer circular surface of the constraint cylinder (4), and a connecting plate (6) is fixedly installed between the two sets of sliding rods (5). The connecting plate (6) has a through hole for the constraint cylinder (4) to pass through, and the inner wall of the through hole has a groove that slides with the guide rod (402). The end of the guide rod (402) near the connector (2) is detachably connected to a limit block (4021).

2. The self-separating explosive de-icing device according to claim 1, characterized in that: The top of the slide bar (5) is connected to a hook, which allows the connector (2) to be suspended on the bottom of the drone.

3. The self-separating explosive de-icing device according to claim 1, characterized in that: The top of the rotating part (3) is provided with a chamfer (303). During the process of inserting the constraint cylinder (4) into the rotating part (3), the protrusion (403) can contact the chamfer (303).

4. The self-separating explosive de-icing device according to claim 1, characterized in that: The connector (2) is provided with a remotely controllable ignition assembly (10), which can ignite the deflagration packing in the constraint cylinder (4) through a lead wire.

5. The self-separating explosive de-icing device according to claim 1, characterized in that: The slide bar (5) has a boss fixedly installed at one end that passes downward through the connector (2), and the guide (7) is installed on the boss, and an elastic element (11) is provided between the boss and the connector (2).

6. A method for de-icing using a self-separating explosive de-icing device as described in any one of claims 1-5, characterized in that, The process includes the following steps: the connector (2) is hoisted to the overhead power line (1) by a drone and the connector (2) is locked to the overhead power line (1) by the clamping arm (8); after the drone is separated from the connector (2), the connector (2) and the constraint cylinder (4) are deflected to the bottom of the overhead power line (1), the deflagration filler in the constraint cylinder (4) is ignited, and the impact force generated by the deflagration drives the overhead power line (1) to swing, so as to eliminate the ice on the overhead power line (1).

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