A protection device for railway track power supply lines
By enhancing the sealing and stability of the rail track power supply line protection device through magnetic connections and bolt spring structures, the problems of low-temperature sealing failure, high-temperature sealing ring hardening, and rainwater ingress are solved, ensuring the normal operation of the equipment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HENAN PERFECT HANDLING EQUIP CO
- Filing Date
- 2025-09-08
- Publication Date
- 2026-08-04
AI Technical Summary
The existing protection device for the power supply line of the railway track fails to seal at low temperatures, resulting in graphite powder leakage. At high temperatures, the hardness of the sealing ring increases, reducing its sealing performance. In heavy rain, the probability of water ingress is high, affecting the operation of internal relays.
The housing design, featuring magnetic connections, combined with bolts and springs, enhances connection stability and uses protective pads to prevent UV exposure and improve sealing.
It effectively prevents water and ultraviolet rays from entering, improves the sealing performance and connection stability of the device, prevents loosening caused by vibration, and ensures normal operation of the equipment.
Smart Images
Figure CN224596098U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of rail power supply line technology, and in particular to a protection device for railway rail power supply lines. Background Technology
[0002] The rail power supply line protection device is a core piece of equipment to ensure the safe operation of the railway power transmission system. It is mainly used to detect and isolate short circuits, overcurrents and grounding faults to ensure the continuity of power supply to trains.
[0003] In existing technologies, the traditional grounding device end caps are sealed with asbestos rubber sheets. This seal fails at low temperatures, causing graphite powder to leak into the bearings, leading to increased bearing temperature. Furthermore, the protection level of the track circuit box is affected by water ingress exceeding standard values during heavy rain, impacting the operation of internal relays. Current technologies use aerospace-grade die-cast aluminum shells with silicone rubber sealing rings to maintain sealing integrity at both low and high temperatures, reducing graphite powder leakage. Replacing the track circuit box with EPDM rubber sealing strips further reduces the probability of water ingress during heavy rain. However, the silicone rubber sealing rings harden after prolonged exposure to ultraviolet light, resulting in decreased sealing performance. Utility Model Content
[0004] To overcome the above shortcomings, this utility model provides a railway track power supply line protection device, which aims to improve the problem that the hardness of the silicone rubber sealing ring increases and the sealing performance decreases after long-term ultraviolet irradiation in the prior art.
[0005] To achieve the above objectives, the present invention adopts the following technical solution: a railway track power supply line protection device, comprising a protective shell, a protection mechanism installed on the outer side of the protective shell for protecting the line, a connecting mechanism installed on the outer side of the protective shell for fixing equipment, the protection mechanism comprising a first outer shell, the first outer shell being installed on the right side of the outer side of the protective shell, connecting rods being fixedly connected to the front and rear sides of the top left side of the first outer shell, a second outer shell being installed on the left side of the outer side of the protective shell, sliding grooves being provided on the front and rear sides of the top right side of the second outer shell, a plurality of second magnets being fixedly connected at equal intervals to the inner top wall of the first outer shell, a plurality of second magnets being fixedly connected at equal intervals to the inner top wall of the second outer shell, a plurality of first magnets being fixedly connected at equal intervals to the top of the protective shell, and a third outer shell being installed in the middle of the outer side of the protective shell.
[0006] As a further description of the above technical solution: The connecting mechanism includes a fixing plate 1, and multiple fixing plates 1 are respectively installed on the front and rear ends of the bottom right side of the protective shell. Bolt 1 is rotatably connected to the middle of the upper and lower ends of the fixing plate 1. Multiple bolts 2 are rotatably connected to the front and rear sides of the top of the outer shell 1 at equal intervals. Bolt 3 is rotatably connected to the four corners of the top of the outer shell 3. Multiple bolts 4 are rotatably connected to the front and rear sides of the top of the outer shell 2 at equal intervals. Multiple fixing plates 2 are fixedly connected to the bottom of the front and rear sides of the outer shell 2 at equal intervals. Multiple connecting plates are fixedly connected to the front and rear sides of the protective shell at equal intervals. Bolt 3 is threadedly connected to the connecting plate. Spring 1 is installed on the upper middle part of the outer side of bolt 3. Spring 2 is installed on the middle part of the outer side of bolt 2. Spring 2 is installed on the middle part of the outer side of bolt 4.
[0007] As a further description of the above technical solution: The second fixing plate is rotatably connected to the first bolt, and the first outer shell is fixedly connected to the first fixing plate.
[0008] As a further description of the above technical solution: Bolt 2 is threadedly connected to the connecting plate, and bolt 4 is threadedly connected to the connecting plate.
[0009] As a further description of the above technical solution: The connecting rod is slidably connected to the second outer shell, the first outer shell is engaged with the second outer shell, and the first magnet is installed with the second magnet.
[0010] As a further description of the above technical solution: Protective pads are installed on the front, rear, and top of the outer shell, and the protective pads are rotatably connected to the bolts.
[0011] As a further description of the above technical solution: Protective pads are installed on the front, rear, and top of the outer shell 2, and the protective pads 2 are rotatably connected to the bolts 4.
[0012] As a further description of the above technical solution: Bolt 3 is rotatably connected to outer shell 1, and bolt 3 is rotatably connected to outer shell 2.
[0013] This utility model has the following beneficial effects: 1. In this utility model, the protective shell is placed on the wire, and the position is aligned by connecting the magnet of the outer shell one with the magnet of the protective shell. Then, the outer shell two is placed on the protective shell, and the connecting rod and the slide groove are aligned before moving the outer shell two to complete the connection between the outer shell one and the outer shell two. The gap at the connection is completely covered by the placement of the outer shell three, which can prevent water from entering the shell and improve the sealing performance of the overall device. The protective pad can play a role in preventing ultraviolet radiation and improve the overall sealing of the equipment.
[0014] 2. In this utility model, bolts are used to fix the outer shell three to the upper part of the outer shell one and the outer shell two, enhancing the tightness. Simultaneously, the connection between these bolts and the connecting plate improves the connection stability between the protective shell and the outer shell. The outer shell one is then fixed to the ground using bolts and a fixing plate. Other bolts are also used to strengthen the connection between the outer shell and the protective shell. Springs can reduce vibrations caused by passing trains and prevent bolts from loosening over time. Attached Figure Description
[0015] Figure 1 This is a front view of a railway track power supply line protection device proposed in this utility model; Figure 2 A perspective view of a railway track power supply line protection device proposed in this utility model; Figure 3 This is a partial structural exploded view of a railway track power supply line protection device proposed in this utility model; Figure 4 This is a partial structural diagram of a railway track power supply line protection device proposed in this utility model; Figure 5 for Figure 4 Enlarged view of point A in the middle.
[0016] Legend: 1. Protective shell; 2. Protective mechanism; 201. Outer shell one; 202. Outer shell two; 203. Outer shell three; 204. Connecting rod; 205. Magnet one; 206. Magnet two; 207. Slide groove; 3. Connecting mechanism; 301. Fixing plate one; 302. Bolt one; 303. Fixing plate two; 304. Bolt two; 305. Connecting plate; 306. Bolt three; 307. Bolt four; 308. Spring one; 309. Spring two; 4. Protective pad one; 5. Protective pad two. Detailed Implementation
[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0018] Reference Figure 1 , Figure 4 and Figure 5This utility model provides an embodiment of a railway track power supply line protection device, including a protective shell 1, a protection mechanism 2 installed on the outside of the protective shell 1 for protecting the line, a connecting mechanism 3 installed on the outside of the protective shell 1 for fixing the equipment, the protection mechanism 2 including a first outer shell 201, the first outer shell 201 is installed on the right side of the outside of the protective shell 1, and connecting rods 204 are fixedly connected to the front and rear sides of the top left side of the first outer shell 201. A second outer shell 201 is installed on the left side of the outside of the protective shell 1. 2. Sliding grooves 207 are provided on the front and rear sides of the top right end of the outer shell 202. Multiple magnets 206 are fixedly connected at equal intervals to the inner top wall of the outer shell 1 201. Multiple magnets 206 are fixedly connected at equal intervals to the inner top wall of the outer shell 202. Multiple magnets 205 are fixedly connected at equal intervals to the top of the protective shell 1. The outer shell 3 203 is installed in the middle of the outer side of the protective shell 1. The connecting rod 204 is slidably connected to the outer shell 202. The outer shell 1 201 is engaged with the outer shell 202. The magnets 205 and magnets 206 are installed. Specifically, first, the protective shell 1 is placed on the wire. Then, the magnet 205 on the outer shell 1 is connected to the magnet 206 on the protective shell 1. Once the connection is complete, it indicates that the installation position is accurately aligned. Next, the outer shell 202 is placed on the protective shell 1. After aligning the connecting rod 204 with the slide groove 207, the outer shell 202 is moved to connect the outer shell 1 201 and the outer shell 202. There is a gap at the connection. The outer shell 3 203 is placed at the connection to completely cover the gap, preventing water from entering the shell and improving the sealing performance of the overall device.
[0019] Reference Figure 2 and Figure 3 The connecting mechanism 3 includes a fixing plate 301. Multiple fixing plates 301 are respectively installed on the front and rear ends of the bottom right side of the protective shell 1. Bolts 302 are rotatably connected to the middle of the upper and lower ends of the fixing plates 301. Multiple bolts 304 are rotatably connected at equal intervals on the front and rear sides of the top of the outer shell 201. Bolts 306 are rotatably connected to the four corners of the top of the outer shell 203. Multiple bolts 307 are rotatably connected at equal intervals on the front and rear sides of the top of the outer shell 202. Multiple fixing plates 303 are fixedly connected at equal intervals on the bottom of the front and rear sides of the outer shell 202. Multiple connecting plates 305 are fixedly connected at equal intervals on the front and rear sides of the protective shell 1. Bolt 306 is threadedly connected to the connecting plate 305. Spring 1 308 is installed on the upper outer side of bolt 306. Spring 2 309 is installed on the middle outer side of bolt 2 304. Spring 2 309 is installed on the middle outer side of bolt 4 307. Fixing plate 2 303 is rotatably connected to bolt 1 302. Outer shell 1 201 is fixedly connected to fixing plate 1 301. Bolt 2 304 is threadedly connected to the connecting plate 305. Bolt 4 307 is threadedly connected to the connecting plate 305. Specifically, outer shell 203 is fixed to the upper part of outer shell 201 and outer shell 202 by bolt 306 to enhance the tightness of the connection. At the same time, the connection between bolt 306 and connecting plate 305 can improve the connection stability between protective shell 1 and outer shell. Then, outer shell 201 is fixed to the ground by bolt 302 and fixing plate 301. Bolt 204 and bolt 407 are also used to enhance the connection strength between outer shell and protective shell 1. Spring 108 and spring 209 can reduce the vibration generated when the train passes by and prevent the bolts from loosening due to long-term use.
[0020] Reference Figure 1 and Figure 2 Protective pad 4 is installed on the front, rear and top of the outer side of outer shell 201. Protective pad 4 is rotatably connected to bolt 304. Protective pad 5 is installed on the front, rear and top of the outer side of outer shell 202. Protective pad 5 is rotatably connected to bolt 307. Bolt 306 is rotatably connected to outer shell 201 and outer shell 202. Specifically, protective pad 4 is installed on the front, rear and top of the outer shell 201. Protective pad 4 is connected to bolt 304. Protective pad 4 can prevent ultraviolet radiation. Protective pad 5 is installed on the front, rear and top of the outer shell 202. Protective pad 5 is connected to bolt 307. Bolt 306 is connected to outer shell 201 and outer shell 202.
[0021] Working principle: First, put the protective shell 1 on the wire. Then, connect the magnet 205 on the outer shell 1 to the magnet 206 on the protective shell 1. Successful connection means that the position is aligned. Then, put the outer shell 202 on the protective shell 1. Align the connecting rod 204 and the slide 207 and move the outer shell 202 to connect the outer shell 1 and the outer shell 202. There will be a gap at the connection. Place the outer shell 3 203 at the connection to completely cover the gap, prevent water from entering the shell, and improve the overall sealing of the device. The protective pads 1 4 and 2 5 can prevent ultraviolet radiation. Use bolt 306 to fix outer shell 3203 onto outer shell 1 201 and outer shell 2 202 to strengthen the fastening. At the same time, bolt 306 and connecting plate 305 can improve the connection between protective shell 1 and outer shell. Then use bolt 1 302 and fixing plate 1 301 to fix outer shell 1 201 to the ground. Bolt 2 304 and bolt 4 307 are also used to strengthen the connection between outer shell and protective shell 1. Spring 1 308 and spring 2 309 can reduce the vibration generated by the train passing by and prevent the bolts from loosening due to long-term use.
[0022] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A protection device for railway track power supply lines, comprising a protective shell (1), characterized in that: A protective mechanism (2) is installed on the outside of the protective shell (1), the protective mechanism (2) is used to protect the circuit, and a connecting mechanism (3) is installed on the outside of the protective shell (1), the connecting mechanism (3) is used to fix the equipment; The protective mechanism (2) includes a first outer shell (201), which is installed on the right side of the outer side of the protective shell (1). A connecting rod (204) is fixedly connected to the front and rear sides of the top left side of the first outer shell (201). A second outer shell (202) is installed on the left side of the outer side of the protective shell (1). A sliding groove (207) is opened on the front and rear sides of the top right side of the second outer shell (202). A plurality of magnets (206) are fixedly connected at equal intervals to the inner top wall of the first outer shell (201). A plurality of magnets (206) are fixedly connected at equal intervals to the inner top wall of the second outer shell (202). A plurality of magnets (205) are fixedly connected at equal intervals to the top of the protective shell (1). A third outer shell (203) is installed in the middle of the outer side of the protective shell (1).
2. The railway track power supply line protection device according to claim 1, characterized in that: The connecting mechanism (3) includes a fixing plate (301), and multiple fixing plates (301) are respectively installed on the front and rear ends of the bottom right side of the protective shell (1). Bolts (302) are rotatably connected to the middle of the upper and lower ends of the fixing plates (301). Multiple bolts (304) are rotatably connected at equal intervals on the front and rear sides of the top of the outer shell (201). Bolts (306) are rotatably connected to the four corners of the top of the outer shell (203). Multiple bolts are rotatably connected at equal intervals on the front and rear sides of the top of the outer shell (202). Fourth (307), multiple fixing plates second (303) are fixedly connected at equal intervals on the bottom front and rear sides of the outer shell second (202), multiple connecting plates (305) are fixedly connected at equal intervals on the front and rear sides of the protective shell (1), the bolt third (306) is threadedly connected to the connecting plate (305), a spring first (308) is installed on the upper outer side of the bolt third (306), a spring second (309) is installed on the middle outer side of the bolt second (304), and a spring second (309) is installed on the middle outer side of the bolt fourth (307).
3. A railway track power supply line protection device according to claim 2, characterized in that: The second fixing plate (303) is rotatably connected to the first bolt (302), and the first outer shell (201) is fixedly connected to the first fixing plate (301).
4. A railway track power supply line protection device according to claim 2, characterized in that: Bolt 2 (304) is threaded to the connecting plate (305), and bolt 4 (307) is threaded to the connecting plate (305).
5. A railway track power supply line protection device according to claim 1, characterized in that: The connecting rod (204) is slidably connected to the outer shell (202), the outer shell (201) is engaged with the outer shell (202), and the magnet (205) is installed with the magnet (206).
6. A railway track power supply line protection device according to claim 2, characterized in that: Protective pads (4) are installed on the front, rear, and top of the outer shell (201), and the protective pads (4) are rotatably connected to the bolts (304).
7. A railway track power supply line protection device according to claim 2, characterized in that: The outer shell 2 (202) is equipped with protective pads 2 (5) on its front, rear and top sides, and the protective pads 2 (5) are rotatably connected to the bolts 4 (307).
8. A railway track power supply line protection device according to claim 2, characterized in that: Bolt 3 (306) is rotatably connected to outer shell 1 (201), and bolt 3 (306) is rotatably connected to outer shell 2 (202).