External locking heating plate
By using a composite material consisting of graphene film, PI tape, and stainless steel layer at the external locking device of the turnout, and installing a heating coil inside, the problems of rapid heat loss and unreliability of the heating plate are solved, achieving efficient snow melting and equipment safety.
Patent Information
- Application Number
- CN202423226382.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-26
- Publication Date
- 2025-12-02
- Estimated Expiration
- 2034-12-26
AI Technical Summary
The heating plates at the existing turnout external locking devices are exposed to the outside, resulting in rapid heat loss and insufficient safety and reliability. They are also easily damaged, affecting the normal progress of snow melting work.
An externally locked heating plate was designed, which is a composite material composed of graphene film, PI tape, insulating sheet and stainless steel layer. The heating coil is installed inside to ensure high heat conduction efficiency and good durability and safety.
It improves the heat transfer efficiency of the heating plate, enhances the safety and durability of the equipment, avoids damage to the heating coil caused by the external environment, and ensures the normal operation of snow melting work.
Smart Images

Figure CN223620729U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of railway snow melting equipment, specifically to an externally locking heating plate. Background Technology
[0002] In cold northern regions, especially the northeast, the continuous heavy snow in winter covers the external locking device of the turnout, causing components such as the locking frame and locking rod, locking iron and locking hook, and locking frame and locking hook to freeze together. The external locking device cannot work properly, the turnout cannot be switched flexibly, and the train is in an unsafe running state, causing common accidents such as missed trains and delays. This problem is particularly prominent for high-speed railways.
[0003] Currently, the main method for snow melting at the external locking device of turnouts in China is to install a heating plate on the outer surface of the locking frame, exposing it to the outside for heating. On the one hand, heat loss is rapid, and on the other hand, it is not safe and reliable enough. It is easily damaged by the impact of trains or by stones carried by them, which can easily damage the heating and snow melting equipment and affect the normal operation of snow melting. Therefore, it is not safe and reliable enough and still has certain shortcomings in practical use.
[0004] In conclusion, it is necessary to invent an externally locking heating plate. Utility Model Content
[0005] Therefore, this utility model provides an external locking heating plate to solve the problem that the main method of snow melting at the external locking device of turnouts in China is to install a heating plate on the outer surface of the locking frame, which exposes the heating plate to the outside. This method results in rapid heat loss and is not safe or reliable.
[0006] To achieve the above objectives, this utility model provides the following technical solution: an externally locking heating plate, including a side plate, a heating plate is provided at the top of the outer wall of the side plate, the heating plate is integrally fixed with the side plate, and a heating coil for heating is provided inside the heating plate.
[0007] Preferably, the heating plate has a heating cavity on its inner wall, the heating coil is fixed to the inner wall of the heating cavity, and an electrical socket is installed on one side of the top of the outer wall of the heating plate.
[0008] Preferably, a female connector is installed on one side of the outer wall of the power socket, and the female connector is electrically connected to the wiring terminal of the heating coil through a power transmission cable.
[0009] Preferably, a sealing cover is provided at the end of the female plug terminal away from the power-on base, a rubber gasket is fixed to the inner wall of the sealing cover, and the inner wall of the sealing cover is slidably connected to the outer wall of the female plug terminal.
[0010] Preferably, the side plate and the heating plate are made of the same material, the side plate is made of graphene film, and PI tape is provided at the upper and lower ends of the outer wall of the graphene film.
[0011] Preferably, the thickness of the PI tape is smaller than that of the graphene film, and an insulating sheet is provided at the end of both PI tapes away from the side plate.
[0012] Preferably, the thickness of the insulating sheet is greater than the thickness of the graphene film and the PI tape, and a stainless steel layer is provided at the end of both insulating sheets away from the PI tape.
[0013] The beneficial effects of this utility model are:
[0014] In this invention, the material layers of the side plate and heating plate are improved to enhance the protection of the heating coil. By installing the heating coil inside the heating plate, its safety protection performance is improved while ensuring normal heating, thus preventing damage to the heating coil from the external environment and ensuring the normal operation of snow melting. Attached Figure Description
[0015] Figure 1 This is a top view of the overall structure of this utility model;
[0016] Figure 2 This is a top view of the cross-sectional structure of the heating plate of this utility model;
[0017] Figure 3 This is a schematic diagram of the material structure of the side plate in this utility model.
[0018] In the diagram: 100, side plate; 101, graphene film; 102, PI tape; 103, insulating sheet; 104, stainless steel layer; 200, heating plate; 210, heating coil; 220, power socket; 221, female terminal; 222, sealing cover. Detailed Implementation
[0019] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.
[0020] See attached document Figures 1-3The externally locking heating plate provided by this utility model includes a side plate 100, a heating plate 200 is provided at the top of the outer wall of the side plate 100, the heating plate 200 is integrally fixed with the side plate 100, a heating coil 210 for heating is provided inside the heating plate 200, a heating cavity is formed in the inner wall of the heating plate 200, and the heating coil 210 is fixed to the inner wall of the heating cavity. The heating plate 200 can place the heating coil 210 through the heating cavity, and the heating coil 210 can generate heat after being powered on. By transferring heat to the side plate 100 and the outer wall of the heating plate 200, snow can be melted in the surrounding area. A power socket 220 is installed on one side of the device, and a female plug terminal 221 is installed on the outer wall of the power socket 220. The female plug terminal 221 is electrically connected to the wiring terminal of the heating coil 210 through a power transmission cable. The female plug terminal 221 is provided to facilitate the external power supply to the device through the cable. A sealing cover 222 is provided at the end of the female plug terminal 221 away from the power socket 220. A rubber gasket is fixed on the inner wall of the sealing cover 222. The inner wall of the sealing cover 222 is slidably connected to the outer wall of the female plug terminal 221. The sealing cover 222 is provided to seal the outer end of the female plug terminal 221 when the device is not in use to prevent it from being damaged by external forces.
[0021] The side plate 100 and the heating plate 200 are made of the same material. The side plate 100 is made of graphene film 101. The graphene film 101 has extremely high thermal conductivity, which can quickly conduct heat to the surface of the heating plate, improving heating efficiency and shortening snow melting time. PI tape 102 is provided at both the upper and lower ends of the outer wall of the graphene film 101. The thickness of the PI tape 102 is smaller than that of the graphene film 101. The PI tape 102 has excellent high-temperature resistance and insulation, which can prevent current leakage and short circuits, improving the safety of the equipment. This is especially important for the heating element to ensure that no safety hazards are generated during operation. Insulating sheets 103 are provided at the ends of the two PI tapes 102 away from the side plate 100. The thickness of the insulating sheets 103 is greater than that of the graphene film 101 and the PI tape 102. The insulating sheets 103 are sufficient to effectively prevent... To prevent current leakage, ensure the safety of the heating equipment, avoid potential dangers to the equipment and operators caused by electrical short circuits, and further improve the stability of the insulation to avoid additional damage, a stainless steel layer 104 is provided at the end of each of the two insulating sheets 103 away from the PI tape 102. The stainless steel layer 104 is made of SUS304, which is a stainless steel material with good corrosion resistance. It can effectively resist corrosion caused by environmental factors such as moisture, snow and salt water, making it suitable for use in cold and snowy areas. At the same time, it can withstand high temperatures without easily deforming or oxidizing, which allows it to maintain good structural reliability in the application of heating plates. In addition, the stainless steel layer 104 also has high mechanical strength and toughness, which can withstand the impact force that may be generated when a high-speed train passes by, maintaining the stability and durability of the equipment. It also has high thermal conductivity, which facilitates the melting of frozen snow.
[0022] The usage process of this utility model is as follows: First, personnel can process the graphene film 101, PI tape 102, insulating sheet 103 and stainless steel layer 104 into the raw material of the device according to the above description. Then, the raw material is made into the shape of side plate 100 and heating plate 200 by stamping or other processing technology. Then, before the device is completely sealed, the heating coil 210 is fixed on the heating plate 200. Then, the power socket 220 and female plug terminal 221 are installed in sequence. The female plug terminal 221 can be sealed and protected by the sealing cover 222.
[0023] When the device is needed, the operator can move it to a suitable position and then fix it to the corresponding position on the track using bolts through the pre-drilled screw holes. The operator can then remove the sealing cover 222 and fix the male plug of the external power supply to the female terminal 221. The operator can then turn on the external power supply to power the heating coil 210 through the power transmission line. After being powered on, the heating coil 210 can generate heat, which will be transferred to the environment through the side plate 100, thereby heating and melting the snow at the installation location.
[0024] The above description is merely a preferred embodiment of this utility model. Any person skilled in the art may modify this utility model or modify it into an equivalent technical solution using the technical solutions described above. Therefore, any simple modifications or equivalent substitutions made based on the technical solutions of this utility model are within the scope of protection claimed by this utility model.
Claims
1. An externally locking heating plate, characterized in that: Includes a side plate (100), and a heating plate (200) is provided at the top of the outer wall of the side plate (100). The heating plate (200) is integrally fixed with the side plate (100), and a heating coil (210) for heating is provided inside the heating plate (200).
2. The externally locking heating plate according to claim 1, characterized in that: The heating plate (200) has a heating cavity on its inner wall, the heating coil (210) is fixed to the inner wall of the heating cavity, and an electric socket (220) is installed on one side of the top of the outer wall of the heating plate (200).
3. The externally locking heating plate according to claim 2, characterized in that: A female plug terminal (221) is installed on one side of the outer wall of the power socket (220), and the female plug terminal (221) is electrically connected to the wiring terminal of the heating coil (210) through a power transmission cable.
4. The externally locking heating plate according to claim 3, characterized in that: A sealing cover (222) is provided at the end of the female plug terminal (221) away from the power supply base (220). A rubber pad is fixed on the inner wall of the sealing cover (222), and the inner wall of the sealing cover (222) is slidably connected to the outer wall of the female plug terminal (221).
5. The externally locking heating plate according to claim 1, characterized in that: The side plate (100) and the heating plate (200) are made of the same material. The side plate (100) is made of graphene film (101), and PI tape (102) is provided at the upper and lower ends of the outer wall of the graphene film (101).
6. The externally locking heating plate according to claim 5, characterized in that: The thickness of the PI tape (102) is smaller than that of the graphene film (101), and an insulating sheet (103) is provided at the end of both PI tapes (102) away from the side plate (100).
7. The externally locking heating plate according to claim 6, characterized in that: The thickness of the insulating sheet (103) is greater than that of the graphene film (101) and the PI tape (102), and a stainless steel layer (104) is provided at the end of each of the two insulating sheets (103) away from the PI tape (102).