CN turnout external locking snow removing device based on electromagnetic heating

Abstract

The utility model relates to railway traffic technical field discloses a CN turnout external locking snow removing device based on electromagnetic heating. The CN turnout external locking snow removing device based on electromagnetic heating includes base, heating sleeve and control module, and heating sleeve sets up in the base, including sleeve main part, high frequency coil, magnetic shielding layer and insulating protective layer, the cross section shape of sleeve main part is oval, and CN turnout external locking device can be located at least partly in the inner chamber of sleeve main part, and high frequency coil sets up in sleeve main part, and magnetic shielding layer and insulating protective layer are stacked and set up in the outer wall of sleeve main part, and magnetic shielding layer is located between insulating protective layer and the outer wall of sleeve main part, and control module is used for controlling the opening and closing of heating sleeve. The CN turnout external locking snow removing device based on electromagnetic heating not only improves the convenience of installation at CN turnout external locking device, reduces the installation difficulty, reduces the emergence of heating blind area, but also shortens the heating time, reduces the cost of snow melting.

Description

Technical Field

[0001] This utility model belongs to the field of railway transportation technology, and in particular relates to a CN turnout external locking snow removal device based on electromagnetic heating. Background Technology

[0002] As a key piece of equipment in railway lines enabling train turning, the technical performance and system reliability of railway switches directly affect the safety and efficiency of railway transportation. This system precisely controls the displacement of the switch rail through an electric or hydraulic drive device, enabling rapid track switching. In modern railway systems, an external locking device is typically installed at the switch. This device, through a mechanical structure, securely locks the switch rail to the stock rail, thereby ensuring the positional stability of the switch after switching and guaranteeing structural stability when trains pass.

[0003] In winter operating environments, low temperatures and snow can cause ice crystals to form in turnout areas, leading to severe freezing problems. This phenomenon increases the resistance of turnout switching and slows down operation, affecting not only the efficiency of train route arrangement but also potentially endangering train safety. Currently, electric heating devices are often installed at turnouts to solve the freezing problem. However, these devices are mostly located on the slide plates or main rails, resulting in an excessively long heat conduction path to the external locking device, leading to significant heat loss. This increases the time and cost of snow melting at the turnouts and poses a risk that the ice crystals at the external locking device may not melt. Furthermore, traditional resistance heating methods suffer from low thermal efficiency, slow heating, and high energy consumption, severely restricting the overall performance and economy of the turnout snow melting system.

[0004] Therefore, there is an urgent need for a CN turnout external locking snow removal device based on electromagnetic heating to solve the above problems. Utility Model Content

[0005] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a CN turnout external locking snow removal device based on electromagnetic heating, which not only improves the convenience of installation at the CN turnout external locking device, reduces the installation difficulty, reduces the occurrence of heating blind spots, but also shortens the heating time and reduces the cost of snow melting.

[0006] To achieve this objective, the present invention adopts the following technical solution:

[0007] A CN turnout external locking snow removal device based on electromagnetic heating is provided, comprising:

[0008] Base;

[0009] Several heating sleeves are provided on the base. Each heating sleeve includes a sleeve body, a high-frequency coil, a magnetic shielding layer, and an insulating protective layer. The cross-sectional shape of the sleeve body is elliptical. The CN turnout external locking device can be located at least partially inside the sleeve body. The high-frequency coil is provided on the inner wall of the sleeve body. The magnetic shielding layer and the insulating protective layer are stacked on the outer wall of the sleeve body, and the magnetic shielding layer is located between the insulating protective layer and the outer wall of the sleeve body.

[0010] The control module is located on the base and is electrically or communicatively connected to the heating sleeve. The control module is used to control the opening and closing of the heating sleeve.

[0011] Optionally, the base includes multiple annular supports, which are spaced apart along the extension direction of the heating sleeve. The annular supports can be detachably installed on the ground or on the CN turnout external locking device, and the heating sleeve passes through the inner hole of the multiple annular supports.

[0012] Optionally, the annular bracket includes a first bracket and a second bracket that can be detachably or rotatably connected. The first bracket is provided with a first mounting groove, and the second bracket is provided with a second mounting groove. The second bracket has a use state and an installation state. In the use state, the first mounting groove and the second mounting groove surround to form the inner hole of the annular bracket, and the heating sleeve is pressed against the groove wall of the first mounting groove by the groove wall of the second mounting groove. In the installation state, an opening is formed between the second bracket and the first bracket, and the heating sleeve can be taken out from the first mounting groove through the opening.

[0013] Optionally, the first bracket is provided with two first connecting ear plates, which are respectively located on both sides of the first mounting groove along its width direction. The second bracket is provided with second connecting ear plates corresponding to the two first connecting ear plates. The base also includes first fasteners corresponding to the two first connecting ear plates. The first connecting ear plates are threadedly connected to the corresponding second connecting ear plates through the corresponding first fasteners.

[0014] Optionally, one of the first bracket and the second bracket is provided with a rotating shaft, and the other of the first bracket and the second bracket is provided with a connecting ear hole, the rotating shaft passing through the connecting ear hole and rotatingly engaging with the hole wall of the connecting ear hole.

[0015] Optionally, the first bracket is provided with a third connecting ear plate, and the third connecting ear plate and the rotating shaft are respectively located on both sides of the first mounting groove along its width direction. The second bracket is provided with a fourth connecting ear plate, and the base also includes a second fastener. The third connecting ear plate is threadedly connected to the fourth connecting ear plate through the second fastener.

[0016] Optionally, the base also includes a third fastener that can pass through the first bracket and be secured to the ground or the CN turnout external locking device.

[0017] Optionally, the control module includes a temperature sensor and a control unit. The temperature sensor is located on the inner wall of the sleeve body and is used to measure the temperature of the CN turnout external locking device. The control unit is electrically or communicatively connected to both the temperature sensor and the heating sleeve and is used to control the opening and closing of the heating sleeve according to the temperature measured by the temperature sensor.

[0018] Optionally, the control module also includes an alarm, which is mounted on the base and electrically or communicatively connected to the temperature sensor.

[0019] Optionally, the control module includes an optical sensor and a control unit. The optical sensor is mounted on the base and is used to measure the snow thickness at the external locking device of the CN turnout. The control unit is electrically or communicatively connected to both the optical sensor and the heating sleeve and is used to control the opening and closing of the heating sleeve based on the snow thickness measured by the optical sensor.

[0020] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0021] This utility model provides a CN turnout external locking snow removal device based on electromagnetic heating. The main body of the sleeve is a cylindrical structure, and its inner cavity can provide space for the installation of the CN turnout external locking device. This allows the heating sleeve to be directly placed on the CN turnout external locking device during installation, without the need to move or disassemble the CN turnout external locking device. This not only improves the convenience of installing the heating sleeve on the CN turnout external locking device, but also reduces the installation difficulty of the electromagnetic heating-based CN turnout external locking snow removal device while ensuring that the entire CN turnout external locking device or key parts are surrounded by high-frequency coils, and ensures the structural stability of the CN turnout external locking device. When the heating sleeve is energized, current flows through the high-frequency coil and generates a high-frequency alternating magnetic field. Under the action of eddy current effect, the current through the high-frequency coil can do work to generate heat, which heats the CN turnout external locking device located in the inner cavity of the sleeve body. This significantly reduces the heat loss in the process of heat transfer from the sliding plate or main rail to the CN turnout external locking device, shortens the overall heating time of the CN turnout external locking device, and reduces the time and cost of snow melting. The sleeve body has an elliptical cross-sectional shape. On one hand, workers can adapt the arrangement of the major and minor axes of the sleeve body according to the installation position of the heating sleeve on the CN turnout external locking device. This allows the high-frequency coil to not only concentrate heating on a specific part of the CN turnout external locking device but also reduces heating blind spots, improving heating efficiency. On the other hand, the CN turnout external locking device has a compact structure. When multiple heating sleeves are installed, they can be installed on the CN turnout external locking device by adjusting the arrangement of the major axes of the sleeve body, avoiding mutual interference between the high-frequency coils of multiple heating sleeves and ensuring heating stability. The magnetic shielding layer is located on the side of the sleeve body away from the high-frequency coil, effectively isolating the magnetic field inside and outside the sleeve body. This prevents the leakage of the high-frequency alternating magnetic field and prevents the magnetic field generated by the high-frequency coil from affecting other equipment in the railway system, ensuring the normal operation of the railway system. The insulating protective layer protects the magnetic shielding layer and the sleeve body from damage caused by wind, snow, etc., extending the service life of the heating sleeve. The control module can control the opening and closing of the heating sleeve, which helps to improve the automation of heating and snow removal of the CN turnout external locking device and improves the ease of use. Attached Figure Description

[0022] Figure 1 A schematic diagram of the structure of the electromagnetic heating-based CN turnout external locking snow removal device provided by this utility model, installed at the CN turnout external locking device;

[0023] Figure 2 A schematic diagram of the structure of the CN turnout external locking snow removal device based on electromagnetic heating provided by this utility model;

[0024] Figure 3 A cross-sectional view of the heating sleeve of the CN turnout external locking snow removal device based on electromagnetic heating provided by this utility model;

[0025] Figure 4 A schematic diagram of the annular support structure of the CN turnout external locking snow removal device based on electromagnetic heating provided by this utility model;

[0026] Figure 5 An exploded view of the annular support of the CN turnout external locking snow removal device based on electromagnetic heating provided by this utility model.

[0027] in:

[0028] 100. CN turnout external locking device;

[0029] 1. Base; 11. Circular bracket; 111. First bracket; 1111. First mounting slot; 1112. First connecting ear plate; 1113. Fifth connecting ear plate; 112. Second bracket; 1121. Second mounting slot; 1122. Second connecting ear plate; 12. First fastener; 13. Third fastener;

[0030] 2. Heating sleeve; 21. Sleeve body; 22. High-frequency coil; 23. Magnetic shielding layer; 231. Ferrite component; 24. Insulation protection layer. Detailed Implementation

[0031] It should be understood that in the description of this utility model, the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0032] It should be noted that, in the description of this utility model, unless otherwise explicitly specified and limited, the terms "set," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0033] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0034] like Figures 1 to 5 As shown, this embodiment provides a CN turnout external locking snow removal device based on electromagnetic heating, which not only improves the convenience of installation at the CN turnout external locking device 100, reduces the installation difficulty, reduces the occurrence of heating blind spots, but also shortens the heating time and reduces the cost of snow melting.

[0035] See Figure 1 , Figure 2 and Figure 3 The CN turnout external locking snow removal device based on electromagnetic heating includes a base 1, a heating sleeve 2, and a control module. The heating sleeve 2 is disposed on the base 1 and includes a sleeve body 21, a high-frequency coil 22, a magnetic shielding layer 23, and an insulating protective layer 24. The cross-sectional shape of the sleeve body 21 is elliptical. The CN turnout external locking device 100 can be located at least partially inside the cavity of the sleeve body 21. The high-frequency coil 22 is disposed on the inner wall of the sleeve body 21. The magnetic shielding layer 23 and the insulating protective layer 24 are stacked on the outer wall of the sleeve body 21, and the magnetic shielding layer 23 is located between the insulating protective layer 24 and the outer wall of the sleeve body 21. The control module is disposed on the base 1 and is electrically or communicatively connected to the heating sleeve 2. The control module is used to control the opening and closing of the heating sleeve 2.

[0036] The CN turnout external locking snow removal device based on electromagnetic heating provided in this embodiment has a cylindrical sleeve body 21 with an inner cavity that provides space for the installation of the CN turnout external locking device 100. This allows the heating sleeve 2 to be directly fitted onto the CN turnout external locking device 100 during installation, without the need to move or disassemble the CN turnout external locking device 100. This not only improves the convenience of installing the heating sleeve 2 on the CN turnout external locking device 100, but also reduces the installation difficulty of the electromagnetic heating-based CN turnout external locking snow removal device while ensuring that the entire CN turnout external locking device 100 or key parts are surrounded by the high-frequency coil 22, and ensures the structural stability of the CN turnout external locking device 100. When the heating sleeve 2 is energized, current flows through the high-frequency coil 22 and generates a high-frequency alternating magnetic field. Under the action of eddy current effect, the current through the high-frequency coil 22 can do work to generate heat, which heats the CN turnout external locking device 100 located in the inner cavity of the sleeve body 21. This significantly reduces the heat loss in the process of heat transfer from the slide plate or main rail to the CN turnout external locking device 100, shortens the overall heating time of the CN turnout external locking device 100, and reduces the time and cost of snow melting. The sleeve body 21 has an elliptical cross-sectional shape. On one hand, workers can adapt the arrangement of the major and minor axes of the sleeve body 21 according to the installation position of the heating sleeve 2 on the CN turnout external locking device 100. This allows the high-frequency coil 22 to not only concentrate heating on a specific part of the CN turnout external locking device 100 but also reduce heating blind spots, improving the heating effect. On the other hand, the CN turnout external locking device 100 has a compact structure. When multiple heating sleeves 2 are installed, they can be installed on the CN turnout external locking device 100 by adjusting the arrangement of the major axis of the sleeve body 21, avoiding mutual interference between the high-frequency coils 22 of multiple heating sleeves and ensuring stability during heating. The magnetic shielding layer 23 is located on the side of the sleeve body 21 away from the high-frequency coil 22. It effectively isolates the magnetic field inside and outside the sleeve body 21, preventing the leakage of the high-frequency alternating magnetic field and preventing the magnetic field generated by the high-frequency coil 22 from affecting other equipment in the railway system, ensuring the normal operation of the railway system. The insulating protective layer 24 protects the magnetic shielding layer 23 and the sleeve body 21, preventing them from being damaged by wind, snow, etc., and improving the service life of the heating sleeve 2. The control module can control the opening and closing of the heating sleeve 2, which helps to improve the automation of heating and snow removal of the CN turnout external locking device 100 and improves the convenience of use.

[0037] Specifically, the elliptical sleeve body 21 can be better adapted to the structure of the long strip components such as the locking rod, operating rod, and indicating rod of the CN turnout external locking device 100, so that the heating sleeve 2 can tightly surround these long strip components.

[0038] Optionally, see Figure 1 , Figure 2 and Figure 4 The base 1 includes multiple annular supports 11, which extend along the extension direction of the heating sleeve 2. Figure 2 The ring brackets 11 are arranged at intervals (in the X direction) and can be detachably installed on the ground or on the CN turnout external locking device 100. The heating sleeves 2 pass through the inner holes of the multiple ring brackets 11. The ring brackets 11 can be removed on the ground. When the CN turnout external locking device 100 malfunctions and needs repair or replacement, the workers can remove the ring brackets 11 and move the heating sleeves 2 away from the CN turnout external locking device 100. The arrangement of multiple ring brackets 11 can stably support the heating sleeves 2 along the extension direction of the heating sleeves 2, so as to ensure the firmness of the installation of the heating sleeves 2 at the CN turnout external locking device 100.

[0039] See Figure 2 , Figure 4 and Figure 5 The annular support 11 includes a first support 111 and a second support 112 that can be detachably or rotatably connected. The first support 111 has a first mounting groove 1111, and the second support 112 has a second mounting groove 1121. The second support 112 has a use state and an installation state. In the use state, the first mounting groove 1111 and the second mounting groove 1121 form the inner hole of the annular support 11, and the heating sleeve 2 is pressed against the groove wall of the first mounting groove 1111 by the groove wall of the second mounting groove 1121. In the installation state, an opening is formed between the second support 112 and the first support 111, allowing the heating sleeve 2 to be removed from the first mounting groove 1111 through the opening. By separating the second support 112 from the first support 111 or driving the second support 112 to rotate relative to the first support 111, the state of the second support 112 can be changed, thereby enabling the installation and removal of the heating sleeve 2 on the annular support 11, facilitating replacement or maintenance of the heating sleeve 2 by personnel. When in use, the heating sleeve 2 is pressed against the wall of the first mounting groove 1111 by the groove wall of the second mounting groove 1121, and the heating sleeve 2 cannot move on the annular bracket 11, thus ensuring the stability of the installation of the heating sleeve 2.

[0040] For example, see Figure 2 and Figure 4 The heating sleeve 2 has a circular cross-sectional shape, and the first mounting groove 1111 and the second mounting groove 1121 both have a semi-circular cross-sectional shape.

[0041] In this embodiment, the first bracket 111 and the second bracket 112 are detachably connected. Specifically, refer to... Figure 2 , Figure 4 and Figure 5The first bracket 111 is provided with two first connecting ear plates 1112, which are respectively disposed in the first mounting groove 1111 along its width direction. Figure 4 On both sides of the first connecting ear plate 111 (in the Y direction), the second bracket 112 is provided with a second connecting ear plate 1122 corresponding to the two first connecting ear plates 1112. The base 1 also includes a first fastener 12 corresponding to the two first connecting ear plates 1112. The first connecting ear plate 1112 is threadedly connected to the corresponding second connecting ear plate 1122 through the corresponding first fastener 12. The threaded connection not only ensures the firmness and stability of the connection between the first connecting ear plate 1112 and the second connecting ear plate 1122, but also makes it easier to remove the first fastener 12 from the first connecting ear plate 1112 and the second connecting ear plate 1122 or to connect the first connecting ear plate 1112 to the second connecting ear plate 1122, so as to realize the separation and connection of the first bracket 111 and the second bracket 112.

[0042] For example, the first fastener 12 includes a bolt and a nut. The head of the bolt is located on the side of the second connecting ear plate 1122 opposite to the first connecting ear plate 1112, and the nut is located on the side of the first connecting ear plate 1112 opposite to the second connecting ear plate 1122. The shank of the bolt passes through the second connecting ear plate 1122 and the first connecting ear plate 1112 and is threadedly connected to the nut. In other embodiments, the first fastener 12 is only a bolt. One of the first connecting ear plate 1112 and the second connecting ear plate 1122 is provided with a first threaded hole. The first fastener 12 passes through the other of the first connecting ear plate 1112 and the second connecting ear plate 1122 and is threadedly connected to the first threaded hole.

[0043] In other embodiments, the first bracket 111 and the second bracket 112 are rotatably connected. Specifically, one of the first bracket 111 and the second bracket 112 is provided with a rotating shaft, and the other of the first bracket 111 and the second bracket 112 is provided with a connecting lug. The rotating shaft passes through the connecting lug and rotatably engages with the wall of the connecting lug, so that the second bracket 112 can rotate relative to the first bracket 111. By driving the second bracket 112 to move axially around the rotating shaft, the state of the second bracket 112 can be switched, which is convenient and quick to operate, and facilitates the installation and disassembly of the heating sleeve 2 by workers on site.

[0044] Furthermore, the first bracket 111 is provided with a third connecting ear plate, which is located on both sides of the first mounting groove 1111 along its width direction, along with the rotating shaft. The second bracket 112 is provided with a fourth connecting ear plate, and the base 1 also includes a second fastener. The third connecting ear plate is threadedly connected to the fourth connecting ear plate via the second fastener. This arrangement ensures that when the second bracket 112 is rotatably connected to the first bracket 111, the second bracket 112 can still be stably confined to its working state, guaranteeing the stability and firmness of the heating sleeve 2 installed on the annular bracket 11. The threaded connection also improves the convenience of connecting the third and fourth connecting ear plates, allowing workers to quickly switch the state of the second bracket 112 on-site.

[0045] Specifically, separating the second fastener from the third and fourth connecting lugs causes the second bracket 112 to rotate relative to the first bracket 111, thereby switching the second bracket 112 from the use state to the installation state. After the second bracket 112 has switched from the installation state to the use state, connecting the second fastener to the third and fourth connecting lugs will stably confine the second bracket 112 to the use state.

[0046] For example, the second fastener includes a bolt and a nut. The head of the bolt is located on the side of the fourth connecting lug plate opposite to the third connecting lug plate, and the nut is located on the side of the third connecting lug plate opposite to the fourth connecting lug plate. The shank of the bolt passes through the fourth and third connecting lug plates and is threadedly connected to the nut. In other embodiments, the second fastener is only a bolt, and one of the third and fourth connecting lug plates has a second threaded hole. The second fastener passes through the other of the third and fourth connecting lug plates and is threadedly connected to the second threaded hole.

[0047] See Figure 2 and Figure 4 The base 1 also includes a third fastener 13, which can pass through the first bracket 111 and be fastened to the ground or the CN turnout external locking device 100, so that the first bracket 111 can be installed on the ground or the CN turnout external locking device 100, and realizes the detachable connection between the first bracket 111 and the ground or the CN turnout external locking device 100.

[0048] Specifically, see Figure 5 The third fastener 13 is a bolt. The bottom of the first bracket 111 is provided with a fifth connecting ear plate 1113. The bolt passes through the fifth connecting ear plate 1113 and is fastened to the ground or the CN turnout external locking device 100.

[0049] Optionally, see Figure 3The magnetic shielding layer 23 includes multiple ferrite elements 231, which are arranged circumferentially along the main body of the sleeve 21. Ferrite is a ferromagnetic metal oxide with high magnetic permeability, which can efficiently guide and concentrate magnetic fields. When an external magnetic field passes through, the magnetic field lines preferentially propagate along the internal path of the ferrite elements 231, forming a low magnetic reluctance channel, which can significantly reduce the diffusion of the magnetic field into the external space; moreover, the magnetic permeability of ferrite is much higher than that of air or non-magnetic materials, so it can confine the magnetic field energy to a limited area and reduce the leakage magnetic field intensity.

[0050] For example, see Figure 3 Ferrite component 231 is a block component.

[0051] Optionally, the insulating protective layer 24 is a cylindrical structure made of fiberglass cloth and epoxy resin. Fiberglass cloth possesses excellent corrosion resistance, high insulation, UV protection, and antistatic properties, enabling the heating sleeve 2 to be used for extended periods even in harsh natural annular environments, thus ensuring its service life and safety and reliability during operation. Epoxy resin has excellent corrosion resistance, further extending the service life of the heating sleeve 2 and reducing the operating cost of the turnout snow melting system.

[0052] Optionally, the control module includes a temperature sensor and a controller. The temperature sensor is located on the inner wall of the sleeve body 21 and is used to measure the temperature of the CN turnout external locking device 100. The controller is electrically or communicatively connected to both the temperature sensor and the heating sleeve 2, and is used to control the opening and closing of the heating sleeve 2 based on the temperature measured by the temperature sensor. When the temperature sensor detects that the temperature of the CN turnout external locking device 100 is too high, the controller can promptly control the heating sleeve 2 to stop heating, ensuring the stability of the CN turnout external locking device 100's performance and the safety of train operation. When the temperature sensor detects that the temperature of the CN turnout external locking device 100 is too low, the controller can control the heating sleeve 2 to start heating, preventing icing and snow accumulation at the CN turnout external locking device 100, thus ensuring the normal operation of the CN turnout external locking device 100 and the railway system. Moreover, this configuration significantly improves the automation level of the CN turnout external locking device 100 heating and saves labor costs.

[0053] Specifically, the position of the temperature sensor on the inner wall of the sleeve body 1 corresponds to the key parts (such as the locking iron and the operating rod) of the CN turnout external locking device 100, so as to improve the accuracy of temperature measurement.

[0054] Specifically, the control unit is configured to control the output power of the high-frequency coil 22 so that it can not only control the opening and closing of the heating sleeve 2, but also control the heating temperature of the heating sleeve 2, so that the heating sleeve 2 can have the function of heat preservation, effectively saving energy consumption in the snow melting process and ensuring the safety of the heating process.

[0055] In this embodiment, the control module also includes an alarm, which is installed on the base 1 and electrically or communicatively connected to the temperature sensor. When the temperature sensor detects that the CN turnout external locking device 100 is too hot, the alarm can issue an alert to the staff to prevent damage to the heating sleeve 2, the CN turnout external locking device 100, and the turnout due to excessive temperature, thus ensuring the stability of the CN turnout external locking device 100's performance and the safety of train operation.

[0056] For example, the alarm uses a buzzer.

[0057] Optionally, the control module includes an optical sensor and a controller. The optical sensor, mounted on the base 1, measures the snow thickness at the CN turnout external locking device 100. The controller is electrically or communicatively connected to both the optical sensor and the heating sleeve 2, and controls the opening and closing of the heating sleeve 2 based on the snow thickness measured by the optical sensor. When the optical sensor detects excessive snow thickness at the CN turnout external locking device 100, the controller promptly controls the heating sleeve 2 to begin heating, ensuring the normal operation of the CN turnout external locking device 100 and the railway system. When the optical sensor detects the snow has disappeared at the CN turnout external locking device 100, the controller promptly controls the heating sleeve 2 to stop heating, ensuring the stability of the CN turnout external locking device 100's performance and the safety of train operation, and also helping to reduce snow melting costs. Moreover, this configuration significantly improves the automation level of heating the CN turnout external locking device 100, saving labor costs.

[0058] In this embodiment, when multiple heating sleeves 2 are provided, multiple temperature sensors and optical sensors are also provided, and each corresponds to one of the multiple heating sleeves 2. The control unit can individually control the output power of each high-frequency coil 22, so that the CN turnout external locking snow removal device based on electromagnetic heating can independently heat different positions of the CN turnout external locking device 100, which improves the flexibility of the snow melting process and also helps to reduce the cost of snow melting.

[0059] The above description is only a specific embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Those skilled in the art should understand that any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present utility model fall within the protection and disclosure scope of the present utility model.

Claims

1. A CN turnout external locking snow removal device based on electromagnetic heating, characterized in that, include: Base (1); A plurality of heating sleeves (2) are disposed on the base (1), including a sleeve body (21), a high-frequency coil (22), a magnetic shielding layer (23) and an insulating protective layer (24). The sleeve body (21) has an elliptical cross-sectional shape. The CN turnout external locking device (100) can be located at least partially in the inner cavity of the sleeve body (21). The high-frequency coil (22) is disposed on the inner wall of the sleeve body (21). The magnetic shielding layer (23) and the insulating protective layer (24) are stacked on the outer wall of the sleeve body (21), and the magnetic shielding layer (23) is located between the insulating protective layer (24) and the outer wall of the sleeve body (21). A control module is disposed on the base (1) and electrically or communicatively connected to the heating sleeve (2). The control module is used to control the opening and closing of the heating sleeve (2).

2. The CN turnout external locking snow removal device based on electromagnetic heating according to claim 1, characterized in that, The base (1) includes a plurality of annular supports (11), which are spaced apart along the extension direction of the heating sleeve (2). The annular supports (11) can be detachably installed on the ground or the CN turnout external locking device (100). The heating sleeve (2) passes through the inner hole of the plurality of annular supports (11).

3. The CN turnout external locking snow removal device based on electromagnetic heating according to claim 2, characterized in that, The annular bracket (11) includes a first bracket (111) and a second bracket (112) that can be detachably or rotatably connected. The first bracket (111) is provided with a first mounting groove (1111), and the second bracket (112) is provided with a second mounting groove (1121). The second bracket (112) has a use state and an installation state. In the use state, the first mounting groove (1111) and the second mounting groove (1121) surround and form the inner hole of the annular bracket (11). The heating sleeve (2) is pressed against the groove wall of the first mounting groove (1111) by the groove wall of the second mounting groove (1121). In the installation state, an opening is formed between the second bracket (112) and the first bracket (111), and the heating sleeve (2) can be taken out from the first mounting groove (1111) through the opening.

4. The CN turnout external locking snow removal device based on electromagnetic heating according to claim 3, characterized in that, The first bracket (111) is provided with two first connecting ear plates (1112), which are respectively located on both sides of the first mounting groove (1111) along its width direction. The second bracket (112) is provided with second connecting ear plates (1122) that correspond one-to-one with the two first connecting ear plates (1112). The base (1) also includes a first fastener (12) that corresponds one-to-one with the two first connecting ear plates (1112). The first connecting ear plates (1112) are threadedly connected to the corresponding second connecting ear plates (1122) through the corresponding first fastener (12).

5. The CN turnout external locking snow removal device based on electromagnetic heating according to claim 3, characterized in that, One of the first bracket (111) and the second bracket (112) is provided with a rotating shaft, and the other of the first bracket (111) and the second bracket (112) is provided with a connecting ear hole. The rotating shaft passes through the connecting ear hole and rotates in cooperation with the hole wall of the connecting ear hole.

6. The CN turnout external locking snow removal device based on electromagnetic heating according to claim 5, characterized in that, The first bracket (111) is provided with a third connecting ear plate, the third connecting ear plate and the rotating shaft are respectively disposed on both sides of the first mounting groove (1111) along its width direction, the second bracket (112) is provided with a fourth connecting ear plate, the base (1) also includes a second fastener, and the third connecting ear plate is threadedly connected to the fourth connecting ear plate through the second fastener.

7. The CN turnout external locking snow removal device based on electromagnetic heating according to claim 3, characterized in that, The base (1) also includes a third fastener (13) which can pass through the first bracket (111) and be fastened to the ground or the CN turnout external locking device (100).

8. The CN turnout external locking snow removal device based on electromagnetic heating according to any one of claims 1-7, characterized in that, The control module includes a temperature sensor and a control component. The temperature sensor is disposed on the inner wall of the sleeve body (21) and is used to measure the temperature of the CN turnout external locking device (100). The control component is electrically or communicatively connected to the temperature sensor and the heating sleeve (2) and is used to control the opening and closing of the heating sleeve (2) according to the temperature measured by the temperature sensor.

9. The CN turnout external locking snow removal device based on electromagnetic heating according to claim 8, characterized in that, The control module also includes an alarm, which is located on the base (1) and is electrically or communicatively connected to the temperature sensor.

10. The CN turnout external locking snow removal device based on electromagnetic heating according to any one of claims 1-7, characterized in that, The control module includes an optical sensor and a control component. The optical sensor is located on the base (1) and is used to measure the snow thickness at the CN turnout external locking device (100). The control component is electrically or communicatively connected to the optical sensor and the heating sleeve (2) and is used to control the opening and closing of the heating sleeve (2) according to the snow thickness measured by the optical sensor.

Images