Railway overhead line system contact line deicing method and deicing device

Abstract

The invention relates to a railway contact network contact line deicing method and device, the railway contact network contact line deicing device comprises an ice knocking unit installed on a first lifting unit, and the ice knocking unit is driven by an ice knocking driving unit to periodically knock the side face of a contact line; the device further comprises a first scraping plate, a blowing unit and a second scraping plate which are installed on the second lifting unit, the first scraping plate and the second scraping plate can abut against and support the bottom face contact face of the contact line, the blowing unit comprises a generating device and a blowing opening, and the blowing opening acts on the whole contact line. According to the deicing method and device provided by the invention, thick ice layers and thin ice residues can be sequentially removed step by step and layer by layer, residual ice is melted and blown, and residual ice residues or water stains are blown away. Ice covering the contact line, especially the bottom working face, can be thoroughly removed, the contact line and accessory equipment components cannot be damaged in the deicing process, and compared with manual deicing, the safety is high, and the working efficiency is high.

Description

Technical Field

[0001] The invention relates to the technical field of rail transit equipment maintenance and repair, and in particular to a railway overhead contact wire deicing method and deicing device. Background Art

[0002] The overhead contact network is responsible for supplying power to electric locomotives and is an important part of electrified railways. It is extremely important to ensure the safety of the overhead contact network power supply. In winter, the overhead contact network is exposed to low temperatures, freezing rain, wet snow, and freezing weather, and is prone to ice. Ice on the overhead contact network will seriously affect the current receiving of the locomotive, which has become an urgent problem to be solved in electrified railways.

[0003] Common deicing methods include thermal deicing, chemical deicing, and physical deicing. Thermal deicing requires direct current heating of the power grid, which consumes a large amount of electricity. The energy consumption is huge in the deicing of the contact network over a long distance. Chemical deicing uses the chemical reaction between ice-melting agents and ice and snow to deicer. Due to its high corrosiveness, it is not suitable for deicing the contact network. Therefore, physical deicing is more commonly used in the prior art, which requires a large number of people to ride in maintenance vehicles and hit the contact network with sticks to make the ice fall off and be removed. This deicing method is inefficient and requires a lot of manpower costs.

[0004] Through searching, relevant technical documents on contact network deicing schemes have been disclosed in the prior art. For example, the utility model authorization announcement document with the publication number "CN219339203U" and the name "A rail vehicle and its pantograph lossless deicing device". A pantograph lossless deicing device is disclosed, which relates to the field of rail vehicle technology, including a pantograph arm support that can be lifted and moved on the top of the rail vehicle body, and also includes a deicing mechanism arranged on the top of the pantograph arm support. The deicing mechanism includes a mounting seat connected to the pantograph arm support, a rotating assembly rotatably arranged on the mounting seat, and a plurality of lossless ice knives arranged on the rotating assembly to knock the bottom of the power supply cable during rotation. In the technical solution disclosed in the comparative document, a rotating ice knife is used to knock the bottom of the cable to remove the ice. When the ice on the contact line is thick, it will be difficult to completely remove the ice layer by simply using this solution. And the bottom of the contact line is the power supply working surface that contacts the pantograph. Frequent knocking may damage the working surface and affect the normal current collection of the network cable. In order to ensure good contact between the locomotive pantograph and the contact wire, the contact wire is strictly constrained in the vertical direction and is almost horizontal along the direction of vehicle travel. In the comparative document, the cable bottom is hit because it is difficult to swing due to the vertical constraint, so the deicing effect is limited.

[0005] For example, the utility model authorization announcement document with the publication number "CN214479479U" and the name "A device for removing ice from high-speed rail contact wires" discloses a device for removing ice from high-speed rail contact wires, which extends from the repair vehicle to the contact network and reaches the contact wire to remove the ice on the contact wire. The main components include a de-icing plate and a high-frequency vibrator. The shape of the de-icing plate is designed. During the forward movement, the front end of the de-icing plate will break the icicles under the contact wire from long to short in sequence, and push the fallen popsicles to the outside of the track. The rear end is close to the contact wire, and high-frequency vibration is used to break the ice wrapped on the contact wire. A hot air blower is also installed at the rear end to completely remove the ice film on the contact wire. The technical solution disclosed in the comparative document uses a high-frequency vibrator to act on the contact wire. First, high-frequency vibration does not cause the cable to swing, and it is difficult to break the thick ice surface; secondly, many phase-splitting and segmented insulators and other equipment are installed along the contact wire, and the solution disclosed in the comparative document cannot pass these auxiliary equipment smoothly; in addition, high-frequency vibration will cause the fasteners of the contact wire to loosen, affecting driving safety.

[0006] Therefore, it is of great significance to propose a railway contact wire deicing method and deicing device with high safety and strong practicality in the field. Summary of the invention

[0007] In view of the deficiencies in the prior art, the present invention provides a method for deicing a contact line of a railway contact network, which comprises the following steps in sequence along the direction of vehicle travel: ice knocking S1, periodically knocking the side of the contact line to make the contact line swing to a certain extent to remove the thick ice layer; first ice scraping S2, scraping the ice on the bottom contact surface of the contact line for the first time, so that only a thin layer of ice remains on the bottom contact surface of the contact line; ice melting S3, using hot steam to heat and melt the thin layer of ice on the bottom contact surface of the contact line, so that a small amount of ice residue remains; second ice scraping S4, scraping the ice on the bottom contact surface of the contact line for the second time while supporting the contact line to remove residual ice residue or water stains.

[0008] Furthermore, in the ice melting step S3, after the thin layer of ice is heated and melted by hot steam, the remaining ice residues or water stains are blown away by compressed air.

[0009] Furthermore, in the ice melting step S3, the ice blowing action direction is made to follow the extension direction of the contact line.

[0010] Furthermore, the point where the ice-breaking step S1 acts on the contact line is at least 0.5 meters away from the point where the first ice-scraping step S2 acts on the contact line.

[0011] Furthermore, a start-stop signal is received during the execution of the ice-breaking step S1, and the start-stop signal includes a start signal and a stop signal. When the stop signal is valid, the execution of ice-breaking S1 is stopped. The start-stop signal comes from a start-stop signal generating device which is located at a safe distance from prohibited components such as phase insulators and section insulators along the direction of travel of the vehicle.

[0012] A railway contact network contact line de-icing device is also proposed, comprising an ice-knocking unit installed on a first lifting unit, wherein the ice-knocking unit is driven by an ice-knocking driving unit to periodically knock the side of the contact line; and further comprising a first scraper, a blowing unit and a second scraper installed on a second lifting unit, wherein the first scraper and the second scraper can resist and support the bottom contact surface of the contact line, and the blowing unit comprises a generating device and a blowing port, and the blowing port acts on the entire contact line.

[0013] Furthermore, the ice knocking unit includes a rotary power mechanism and a flexible glue stick plugged into the rotary power mechanism; or includes a reciprocating actuator and a connecting rod hinged to the reciprocating actuator, one end of the connecting rod is connected to the flexible glue stick.

[0014] Furthermore, the air blowing port is slidably mounted on a supporting seat, and a plurality of contact line sensing units are mounted on the second scraper.

[0015] Furthermore, the blowing port is connected to a blowing plate, a groove is provided on the blowing plate along the extension direction of the contact line, a hot steam outlet and a compressed air outlet are sequentially provided in the groove along the extension direction of the contact line, and the end of the first scraper is connected to the air guide part.

[0016] Furthermore, the blowing outlet is connected to multiple groups of hot steam outlets and compressed air outlets, and each group of hot steam outlets and compressed air outlets are distributed in sequence along the extension direction of the contact line; multiple contact line sensing units are installed on the second scraper, and the contact line sensing unit outputs signals to control the solenoid valve group, and the solenoid valve group controls the opening and closing of each group of hot steam outlets and compressed air outlets.

[0017] Compared with the prior art, the technical solution of the present application has the following beneficial effects: the deicing method and device proposed in the present invention can remove thick ice layers and thin ice slags in steps and layers, melt and blow residual ice, and blow away residual ice slags or water stains. The contact line, especially the bottom working surface, can be thoroughly cleared of ice. The contact line and auxiliary equipment components will not be damaged during the deicing process, and the safety is good and the work efficiency is high. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 : Schematic diagram of the steps for implementing the de-icing method; Figure 2 : Schematic diagram of the overall structure of the deicing device; Figure 3 : Schematic diagram of the structure of the first scraper; Figure 4 : Schematic diagram of the blowing plate structure; Figure 5 :Illustration of ice knocking unit structure Figure 1 ; Figure 6 :Illustration of ice knocking unit structure Figure 2 ; Figure 7 :Schematic diagram of the blowing unit structure Figure 1 ; Figure 8 :Schematic diagram of the blowing unit structure Figure 2 . DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0020] like Figure 1 As shown: A method for deicing the contact wire of a railway overhead contact network, which includes the following steps in sequence along the direction of vehicle travel: Ice knocking S1, periodically knocking the side of the contact line K, so that the contact line K swings to a certain amplitude to remove the thick ice layer; First ice scraping S2, scraping the bottom contact surface of the contact line K for the first time, so that only a thin layer of ice remains on the bottom contact surface of the contact line K; Ice melting S3, using hot steam to heat and melt the thin layer of ice on the contact line K, leaving a small amount of ice residue or water stains; The second ice scraping S4 is to scrape the bottom contact surface of the contact line K for the second time while supporting the contact line to remove residual ice debris or water stains.

[0021] Specifically in this embodiment, the execution of the above steps is carried out while walking along the direction of the vehicle's travel and along the direction in which the contact line K extends, so that the de-icing operation can be carried out in steps for each section of the contact line K. In the ice-knocking step S1, the point of force application of the knocking will be very critical. The contact line K is powered by contact with the pantograph through its bottom surface. If the contact line K has large fluctuations along the direction of the vehicle's travel, the pantograph will push the contact line K to walk on the undulations during the sliding contact with the contact line K. The contact friction between the contact line K and the pantograph will increase significantly and cause abnormal wear. Based on the above reasons, the vertical direction of the contact line K will be given a relatively strict vertical constraint by pulling the counterweight, so that the contact line K can maintain a smooth extension as much as possible. Therefore, when knocking ice on the contact line K, although the ice layer at the bottom of the contact line K is the key surface that affects its power supply contact, directly knocking on its bottom surface will not cause the contact line K to have a considerable swing amplitude due to the vertical constraint. If the knocking force is too great, the bottom working surface of the contact line K may be damaged due to the excessive vertical impact force, and the vertical constraint of the contact line K may become loose and ineffective. In fact, to remove the thick layer of ice on the contact line K, it is necessary to make the contact line K swing in a certain direction. It is difficult to break and knock down the hard ice layer by just using a large force to knock the ice layer. Considering the possible damage to the line, sharp objects should not be used for knocking. Therefore, in this embodiment, the side of the contact line K is knocked, which can make the contact line K swing in the horizontal direction to remove the thick layer of ice without damaging the working surface and vertical constraint of the contact line K. Continuing from the above, in this embodiment, the order of each step is also critical. After the ice is knocked, the hard and thick ice layer around the contact line K will fall off. At this time, a thinner ice layer with a certain hardness will be left on the contact line K. In this case, the bottom surface of the contact line K is subjected to the first ice scraping step S1. Since the hard thick ice layer has been removed, the ice scraper can be operated on the bottom surface of the contact line K at this time. After the ice scraper is done, a thin layer of ice will remain on the bottom surface of the contact line K. These thin layers of ice still have an impact on the power supply of the contact line K, but they are already thin, and because the ice layer on the bottom surface of the contact line K does not become hard and high-density due to self-superposition, the remaining thin layer of ice is relatively loose and may be in the state of ice slag. In this state, the ice melting step S3 can be continued, and the hot steam acts on the entire contact line K, has a certain flow rate, and can heat and melt the aforementioned thin layer of ice. After performing the ice melting step S3, only some residual ice slag or water stains or ice-water mixture remain on the bottom of the contact line K at this time. At this time, the second ice scraper S4 can be performed, so that the ice on the bottom surface of the contact line K can be completely removed, so that its working surface is completely exposed, meeting the requirements of driving power supply.

[0022] In a more preferred embodiment, in the step of melting ice S3, after the thin layer of ice on the bottom contact surface of the contact line K is heated and melted by hot steam, the contact line K is blown with compressed air. After the contact line K is acted upon by the hot steam, some water stains or ice residues may remain, so the ice residues or water stains may be removed by using high-flow compressed air after the thin layer of ice is melted by the hot steam.

[0023] In a more preferred embodiment, in the step of melting ice S3, the direction of ice blowing follows the extension direction of the contact wire K. During the laying process of the contact wire K, if the contact wire K is laid strictly along the extension direction of the track, the pantograph and the bottom surface of the contact wire K will always rub against the same part of the pantograph when they are in sliding contact. After a long time, the pantograph working surface will be fixed at a certain place and a groove will be formed due to repeated friction, which will eventually affect the reliability of sliding power supply. In order to avoid this problem, the laying of the contact wire K is referred to as Figure 3 , along the locomotive travel or track laying direction, it is not laid in a straight line, but in a "Z" shape, so that the contact line K will rub back and forth on a surface of a certain width during the pantograph sliding contact, making the carbon slide plate of the pantograph wear uniform. However, this will cause the injection direction of hot steam or compressed air to deviate from the bottom of the contact line K in step S3 of ice melting, so it is necessary to follow the extension direction of the contact line K during the process of traveling to ensure that the contact line K can be accurately blown.

[0024] As in the aforementioned embodiment, the purpose of the step of knocking the ice S1 is to make the contact line K swing to a certain extent. And in the step of first scraping the ice S2, there must be an ice scraping component that contacts the bottom of the contact line K and provides a certain supporting force. At this time, if the distance between the contact line K between the ice knocking and the first ice scraping point is too short, the swing amplitude will not meet the requirements. In order to solve this technical problem, a more preferred embodiment is proposed, in which the point where the contact line K is affected by the step of knocking the ice S1 is more than 0.5 meters away from the point where the contact line K is affected by the step of first scraping the ice S2.

[0025] Based on the aforementioned implementation, auxiliary equipment such as phase splitters and segmented insulators may be installed on the contact line K. These devices cannot be knocked, which means that if the aforementioned equipment exists within a certain section of the contact line K, the ice knocking step S1 must stop working and resume working after passing this section. Therefore, a more preferred implementation is proposed, in which a start-stop signal is received during the execution of the ice knocking step S1, and the start-stop signal includes a start signal and a stop signal. When the stop signal is valid, the execution of ice knocking S1 is stopped, and when the start signal is valid, the ice knocking operation is resumed. The start-stop signal comes from a start-stop signal generating device that is a safe distance away from prohibited components such as phase splitters and segmented insulators along the direction of travel of the vehicle. It should be noted that the start-stop signal can be generated by common signal generating devices such as photoelectric signals, magnetic induction signals, RFID signals or GPS signals, and the same is true for signal reception.

[0026] Based on the above implementation, a deicing device is also proposed below. Figure 2 , Figure 5 , Figure 7 . It includes an ice-knocking unit 12 installed on the first lifting unit 11, and the ice-knocking unit 12 is driven by the ice-knocking driving unit 13 to periodically knock the side of the contact line K; it also includes a first scraper 22, a blowing unit and a second scraper 23 installed on the second lifting unit 21, the first scraper 22 and the second scraper 23 can resist and support the bottom contact surface of the contact line K, and the blowing unit includes a generating device 24 and a blowing port 25, and the blowing port 25 acts on the entire contact line K. The blowing unit is placed between the first scraper 22 and the second scraper 23 to prevent the blowing port 25 from being disturbed by the airflow when the vehicle is moving, resulting in the inability of the blowing to directly act on the contact line and affect the ice melting efficiency.

[0027] In this embodiment, the first lifting unit 11 and the second lifting unit 21 are independent of each other, and these devices can be uniformly installed on a platform 1 as a modular component. Of course, the first lifting unit 11 and the second lifting unit 21 can also be directly and independently installed on the maintenance vehicle to achieve independent disassembly and assembly. As the platform 1 can be assembled to the engineering maintenance vehicle in a detachable manner, it can be unloaded as a whole with the platform 1 when the weather conditions are good to reduce the energy consumption of the engineering maintenance vehicle at ordinary times. The first lifting unit 11 and the second lifting unit 21 can both adopt a diamond-shaped lifting platform similar to that for carrying people and goods. The first scraper 22 and the second scraper 23 extend in a direction perpendicular to the contact line K and have a certain width to prevent the contact line K from sliding off. After the first scraper 22 and the second scraper 23 are lifted by the second lifting unit 21, they provide a certain support and abutment force on the bottom of the contact line K to improve the effect of scraping ice.

[0028] In a more preferred embodiment, the ice knocking unit 12 can adopt the following different embodiments: one is as follows Figure 5 As shown. The ice knocking unit 12 includes a rotating power mechanism 121 and a flexible glue stick 122 plugged into the rotating power mechanism 121. The flexible glue stick 122 has a certain strength, but can be bent to a certain extent, and will not cause damage to the side of the contact line K. Under the driving action of the rotating power mechanism 121, the flexible glue stick 122 hits the side of the contact line K in a rotating manner, causing the contact line K to swing. At the same time, the flexible glue stick 122 will bend to a certain extent and pass through the contact line K, and continue to knock in the next cycle. This embodiment has a simple driving principle, and multiple flexible glue sticks 122 can be plugged into the rotating power mechanism 121, and the rotating power mechanism 121 can be a roller with a certain diameter that is driven to rotate by power components such as a motor. Multiple flexible glue sticks 122 thereon can also be arranged in a similar threaded form, so that the sides of the contact line K that are knocked can be staggered and knocked in sequence, so that the swing of the contact line K is more sufficient.

[0029] Another way to see Figure 6 The ice knocking unit 12 includes a reciprocating actuator 123 and a connecting rod 124 hinged to the reciprocating actuator 123, and one end of the connecting rod 124 is connected to a flexible glue stick 122. Under the reciprocating push-pull action of the reciprocating actuator 123, the flexible glue stick 122 at the end of the connecting rod 124 will knock back and forth on the side of the contact line K. In this way, the flexible glue stick 122 does not need to pass through the contact line K, and does not damage the contact line K.

[0030] In the above-mentioned deicing method, the specific reason why the contact line K is not laid along a straight line is clarified. Based on this, the air outlet 25 is arranged as follows: Figure 3 and Figure 7 The blowing port 25 is slidably mounted on a support seat 26, and a plurality of contact line K sensing units 27 are mounted on the second scraper 23. The contact line K sensing unit 27 can be an array of electromagnetic induction devices. When the contact line K is close to the electromagnetic induction device, one or part of them will generate an induction signal. By positioning the sensing device that generates the signal, the current position of the bottom of the contact line K on the first scraper 22 or the second scraper 23 can be known, thereby driving the blowing port 25 to slide relative to the support seat 26 to adapt to the change of this position, so that the blowing port 25 can always act on the contact line K.

[0031] In a more preferred embodiment, Figure 2~Figure 4As shown. The blowing port 25 is connected to the blowing plate 251, and a groove 252 is provided on the blowing plate 251 along the extension direction of the contact line K. A hot steam outlet 253 and a compressed air outlet 254 are provided in the groove 252 in sequence along the extension direction of the contact line K. The end of the first scraper 22 is connected to the air guide 221. In this embodiment, the air guide 221 is a semicircular or arc protrusion, which is used to break the wind and guide the air during the movement. Since the blowing port 25 is located between the first scraper 22 and the second scraper 23, the airflow can be blocked to a certain extent during the movement. Combined with the groove 252, the airflow on the bottom side of the contact line K is also blocked, and the hot steam and compressed air can directly act on the contact line K.

[0032] A possible alternative implementation could be Figure 8 As shown: the blowing port 25 is connected to multiple groups of hot steam outlets 253 and compressed air outlets 254, and each group of hot steam outlets 253 and compressed air outlets 254 are sequentially distributed along the extension direction of the contact line K; multiple contact line sensing units 27 are installed on the second scraper 23, and the contact line sensing units 27 output signals to control the electromagnetic valve group, and the electromagnetic valve group controls the on-off of each group of hot steam outlets 253 and compressed air outlets 254. This method is different from the above-mentioned sliding follow-up method, and adopts the method of selecting on and off of multiple outlets to ensure that the hot steam and compressed air at the outlet can always act on the contact line K. Specifically, the hot steam outlet 253 and the compressed air outlet 254 are arranged in pairs. When the contact line sensing unit 27 identifies the specific position of the contact line K, the solenoid valve group will control the hot steam outlet 253 and the compressed air outlet 254 of the corresponding group to open, and the hot steam outlet 253 and the compressed air outlet 254 of the other groups will be closed, as shown by the "×" mark in the figure. The solenoid valve group and the hot steam outlet 253 and the compressed air outlet 254 will be connected through corresponding pipelines, which are not shown in detail in the figure.

[0033] In a more preferred embodiment, the ice knocking unit 12 is surrounded by a guardrail 125. As described in the above embodiment, the device can be installed on a platform 1, and the platform 1 can be installed on a maintenance vehicle in an integral modular manner. Maintenance personnel will be close to the ice knocking unit 12 at any time, and the guardrail 125 can prevent the moving ice knocking unit 12 from causing safety hazards to personnel.

[0034] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0035] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A method for deicing a railway contact line, characterized in that: The following steps are included in the direction of vehicle travel: Ice knocking S1, periodically knocking the side of the contact line to make the contact line swing to a certain extent to remove the thick ice layer; First ice scraping S2, scraping the bottom contact surface of the contact line for the first time, so that only a thin layer of ice remains on the bottom contact surface of the contact line; Ice melting S3, using hot steam to heat and melt the thin layer of ice on the contact line, leaving a small amount of ice residue or water stains; The second ice scraping S4 is to scrape the bottom contact surface of the contact line for the second time while supporting the contact line to remove residual ice debris or water stains.

2. The method for deicing the contact wire of a railway overhead contact network according to claim 1, characterized in that: In the ice melting step S3, after the thin layer of ice is heated and melted by hot steam, the remaining ice residues or water stains are blown away by compressed air.

3. The method for deicing the contact wire of a railway overhead contact network according to claim 2, characterized in that: In the ice melting step S3, the ice blowing action direction follows the extension direction of the contact line.

4. The method for deicing the contact wire of a railway overhead contact network according to claim 3, characterized in that: The point where the ice-breaking step S1 acts on the contact line is at least 0.5 meters away from the point where the first ice-scraping step S2 acts on the contact line.

5. The method for deicing the contact wire of a railway overhead contact network according to claim 4, characterized in that: In the execution step of ice-breaking S1, a start-stop signal is received, and the start-stop signal includes a start signal and a stop signal. When the stop signal is valid, the execution of ice-breaking S1 is stopped. The start-stop signal comes from a start-stop signal generating device which is a safe distance away from prohibited components such as phase insulators and section insulators along the direction of vehicle travel.

6. A railway overhead contact wire deicing device for executing the railway overhead contact wire deicing method according to any one of claims 1 to 5, characterized in that: The invention comprises an ice knocking unit (12) installed on a first lifting unit (11), wherein the ice knocking unit (12) is driven by an ice knocking driving unit (13) to periodically knock the side of the contact line; and further comprises a first scraper (22), a blowing unit and a second scraper (23) installed on a second lifting unit (21), wherein the first scraper (22) and the second scraper (23) can contact and support the bottom contact surface of the contact line, and the blowing unit comprises a generating device (24) and a blowing port (25), wherein the blowing port (25) acts on the entire contact line.

7. The railway contact wire deicing device according to claim 6, characterized in that: The ice knocking unit (12) comprises a rotating power mechanism (121) and a flexible glue stick (122) plugged into the rotating power mechanism (121); or comprises a reciprocating actuator (123) and a connecting rod (124) hinged to the reciprocating actuator (123), one end of the connecting rod (124) being connected to the flexible glue stick (122).

8. The railway contact wire deicing device according to claim 7, characterized in that: The air blowing port (25) is slidably mounted on a support seat (26), and a plurality of contact line sensing units (27) are mounted on the second scraper (23).

9. The railway contact wire deicing device according to claim 8, characterized in that: The blowing port (25) is connected to a blowing plate (251), a groove (252) is provided on the blowing plate (251) along the extension direction of the contact line (K), a hot steam outlet (253) and a compressed air outlet (254) are provided in sequence in the groove (252) along the extension direction of the contact line, and the end of the first scraper (22) is connected to the air guide (221).

10. The railway contact wire deicing device according to claim 7, characterized in that: The blowing port (25) is connected to a plurality of groups of hot steam outlets (253) and compressed air outlets (254), and each group of hot steam outlets (253) and compressed air outlets (254) are sequentially distributed along the extension direction of the contact line (K); a plurality of contact line sensing units (27) are installed on the second scraper (23), and the contact line sensing units (27) output signals to control the electromagnetic valve group, and the electromagnetic valve group controls the on and off of each group of hot steam outlets (253) and compressed air outlets (254).

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