135-degree pre-bending anti-damage steel rail lead wire plug pin structure

Abstract

The invention discloses a 135-degree pre-bending anti-damage steel rail lead wire plug pin structure, and relates to the technical field of plug pins. The 135-degree pre-bending anti-damage steel rail lead wire plug pin structure comprises a wire body, a plug pin body is arranged at the end of the wire body, an insulating sheath is arranged on the outer surface of the joint of the wire body and the plug pin body, a stress base is fixedly connected to the end of the plug pin body, a key groove is formed in the edge of the stress base, and a fastening mechanism is arranged on the outer surface of the plug pin body. The fastening mechanism comprises a movable connecting rod, the two ends of the movable connecting rod are fixedly connected with a fastening push plate and a fixing plate respectively, the movable connecting rod is sleeved with a spring, and the side, close to the plug pin body, of the fastening push plate is fixedly connected with an L-shaped connecting rod. And the anti-pulling-out effect of the plug pin can be improved, and the loosening risk is reduced.

Description

Technical Field

[0001] This invention relates to the field of plug technology, specifically to a 135-degree pre-bent anti-damage rail lead wire plug structure. Background Technology

[0002] Rail lead-in plugs are key electrical connection devices in railway signaling systems used to connect rails to signal cables. They mainly consist of a copper alloy plug body, an insulating sleeve, and fastening components. Driven vertically into the rail web via mechanical drilling, they form a reliable electrical path. Their core function is to achieve the primary side connection of the track circuit, transmitting the current signal from the rail to the signal cable, and then to the signal or interlocking equipment. This device features corrosion resistance, wear resistance, and vibration resistance. Made of brass, it ensures good conductivity, and the outer tin plating prevents oxidation. In electrified sections, the plug must also possess anti-interference capabilities to prevent traction current from interfering with the signaling system. Its performance directly affects the shunt sensitivity and transmission stability of the track circuit, making it a crucial fundamental component for ensuring the safety of the railway signaling system.

[0003] Rail lead wire plugs are key connecting components in railway signaling systems. Traditional plug structures have obvious defects. During installation, the lead wire needs to be bent on-site to adapt to the rail angle, which can easily lead to damage to the insulation sheath. In addition, the force-bearing area at the tail of the plug is small, and stress concentration during hammering installation can easily cause the plug head to bend or stack. Furthermore, conventional plugs rely on friction for fixation, which can easily loosen after long-term use and have insufficient pull-out resistance. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides a 135-degree pre-bent anti-damage rail lead wire plug structure, which solves the problems mentioned in the background art, such as the need for on-site bending of the lead wire during traditional plug installation, which easily damages the insulation sheath; the small force-bearing area at the tail of the plug leading to installation deformation; and the easy loosening and insufficient pull-out resistance of conventional plug friction fixing methods.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a 135-degree pre-bent anti-damage rail lead wire plug structure, comprising a lead wire body, a plug body being provided at the end of the lead wire body, an insulating sleeve being provided on the outer surface of the connection between the lead wire body and the plug body, a force-bearing seat being fixedly connected to the end of the plug body, a keyway being provided on the edge of the force-bearing seat, a fastening mechanism being provided on the outer surface of the plug body, the fastening mechanism comprising a movable connecting rod, a fastening push plate and a fixed plate being fixedly connected to both ends of the movable connecting rod respectively, a spring being sleeved on the outside of the movable connecting rod, and an L-shaped connecting rod being fixedly connected to the side of the fastening push plate near the plug body.

[0006] Preferably, the outer surface of the movable connecting rod is fitted inside the plug body, and the plug body has a first internal groove and a second internal groove, with the movable connecting rod extending into the first internal groove.

[0007] Preferably, one end of the spring is fixedly connected to the outer surface of the fixing plate, and the end of the spring away from the fixing plate is fixedly connected to the inner surface of the first internal groove.

[0008] Preferably, the L-shaped connecting rod is disposed inside the second internal groove, and the end of the horizontal portion of the L-shaped connecting rod extends to the outside of the plug body.

[0009] Preferably, the outer surface of the plug body is provided with a groove, the inside of the groove is adapted to the outer surface of the fastening push plate, and the outer surface of the fixing plate is fitted inside the first inner groove.

[0010] Preferably, the movable connecting rod, the first internal groove, the second internal groove, the recess, the fastening push plate, the fixing plate, the spring, and the L-shaped connecting rod are all arranged in a circular array around the axis of the plug body, and the end of the horizontal part of the L-shaped connecting rod is provided with a restraining rope.

[0011] Beneficial effects

[0012] This invention provides a 135-degree pre-bent anti-damage rail guide wire plug structure. It has the following beneficial effects:

[0013] 1. The 135-degree pre-bent anti-damage rail lead wire plug structure, through the design of the lead wire body and the plug body being pre-bent at 135°, directly matches the rail installation angle, completely eliminating the risk of insulation sheath breakage caused by on-site bending, while improving installation efficiency and aesthetics.

[0014] 2. The 135-degree pre-bent anti-damage rail guide plug structure has a fastening mechanism on the surface of the plug, which allows the fastening mechanism to fit tightly against the hole wall after the plug is inserted into the rail hole, thereby improving the plug's anti-pull-out effect and reducing the risk of loosening.

[0015] 3. The 135-degree pre-bent anti-damage rail guide plug structure increases the force-bearing area at the tail of the plug by setting a force-bearing seat at the tail of the plug, making the force more uniform during plug installation and effectively reducing problems such as plug head bending and stacking caused by uneven force. At the same time, a keyway is set on the edge of the force-bearing disc, which is used to lock the tool and prevent installation rotation. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0017] Figure 2 This is a cross-sectional view of the overall structure of the present invention;

[0018] Figure 3 This is a schematic diagram of the fastening mechanism of the present invention;

[0019] Figure 4 This is a schematic diagram of the overall installation of the present invention.

[0020] In the diagram: 1. Conductor body; 2. Insulating sheath; 3. Plug body; 4. Force-bearing seat; 5. Keyway; 6. Fastening mechanism; 61. Movable connecting rod; 62. First internal groove; 63. Second internal groove; 64. Groove; 65. Fastening push plate; 66. Fixing plate; 67. Spring; 68. L-shaped connecting rod; 69. Restraint rope. Detailed Implementation

[0021] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0022] like Figure 1-4 As shown, the present invention provides a 135-degree pre-bent anti-damage rail lead wire plug structure, including a lead wire body 1, a plug body 3 at the end of the lead wire body 1, an insulating sleeve 2 at the connection between the lead wire body 1 and the plug body 3, a force-bearing seat 4 fixedly connected to the end of the plug body 3, a keyway 5 at the edge of the force-bearing seat 4, a fastening mechanism 6 on the outer surface of the plug body 3, the fastening mechanism 6 including a movable connecting rod 61, a fastening push plate 65 and a fixed plate 66 fixedly connected to the two ends of the movable connecting rod 61 respectively, a spring 67 sleeved on the outside of the movable connecting rod 61, and an L-shaped connecting rod 68 fixedly connected to the side of the fastening push plate 65 near the plug body 3.

[0023] Specifically, the outer surface of the movable link 61 is fitted inside the plug body 3. The plug body 3 has a first internal groove 62 and a second internal groove 63. The movable link 61 extends to the first internal groove 62. The first internal groove 62 provides space for the movable link 61, the fixed plate 66 and the spring 67. The second internal groove 63 provides space for the L-shaped link 68.

[0024] Specifically, one end of the spring 67 is fixedly connected to the outer surface of the fixed plate 66, and the other end of the spring 67 away from the fixed plate 66 is fixedly connected to the inner surface of the first inner groove 62. The spring 67 provides a reset force. When the fastening push plate 65 is compressed into the groove 64, the force of the spring 67 can push the movable connecting rod 61 and the fastening push plate 65 to reset, ensuring the reliability of the fastening mechanism 6.

[0025] Specifically, the L-shaped link 68 is located inside the second internal groove 63. The end of the horizontal portion of the L-shaped link 68 extends to the outside of the plug body 3. The design of the L-shaped link 68 allows for external operation. By pressing or releasing the horizontal portion of the L-shaped link 68, the inward and outward movement of the fastening push plate 65 can be controlled.

[0026] Specifically, the outer surface of the plug body 3 is provided with a groove 64, the inside of the groove 64 is adapted to the outer surface of the fastening push plate 65, the outer surface of the fixing plate 66 is fitted inside the first inner groove 62, and the groove 64 provides a receiving space for the fastening push plate 65.

[0027] Specifically, the movable connecting rod 61, the first internal groove 62, the second internal groove 63, the groove 64, the fastening push plate 65, the fixing plate 66, the spring 67, and the L-shaped connecting rod 68 are all arranged in a ring around the axis of the plug body 3. The horizontal part of the L-shaped connecting rod 68 is provided with a binding rope 69. This ring array design makes the fastening mechanism 6 evenly distributed around the plug body 3, providing uniform fastening force and enhancing the overall stability and pull-out resistance.

[0028] The working principle of the above embodiments:

[0029] During installation, press each L-shaped connecting rod 68 towards the axis of the plug body 3, causing the fastening push plate 65 to move into the groove 64. The movable connecting rod 61 moves accordingly, causing the fixed plate 66 to move along the first inner groove 62, and the spring 67 is stretched. At this time, use the binding rope 69 to tie each L-shaped connecting rod 68 together, so that the fastening mechanism 6 remains in its current state. Then, insert the plug body 3 into the rail hole, and use a tool that matches the keyway 5 to wedge it into the keyway 5 on the edge of the force-bearing seat 4 to prevent the plug from rotating. When the force-bearing seat 4 is struck, its increased force-bearing area allows the installation force to be evenly transmitted to the plug. To prevent the nail head from bending or stacking, the nail body 3 is fully driven into the rail hole. After the fastening mechanism 6 fastens the push plate 65 inside the rail hole, the binding rope 69 is removed. The restoring force of the spring 67 continues to act on the push plate 65, keeping the push plate 65 in an externally supported state and close to the rail hole wall. This significantly improves the pull-out resistance and anti-loosening effect. In addition, during the production of the 135° rail lead wire, the conductor body 1 is first bent to the specified angle before being sheathed. This conforms to the angle of contact with the rail surface during installation, reducing the bending process during installation and improving installation efficiency.

[0030] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, the phrase "comprising an element defined as..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0031] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A 135-degree pre-bent anti-damage rail guide wire plug structure, comprising a guide wire body (1), characterized in that: The end of the conductor (1) is provided with a plug body (3), and the outer surface of the connection between the conductor (1) and the plug body (3) is provided with an insulating sleeve (2). The end of the plug body (3) is fixedly connected with a force seat (4), and the edge of the force seat (4) is provided with a keyway (5). The outer surface of the plug body (3) is provided with a fastening mechanism (6). The fastening mechanism (6) includes a movable connecting rod (61). The two ends of the movable connecting rod (61) are respectively fixedly connected with a fastening push plate (65) and a fixed plate (66). A spring (67) is sleeved on the outside of the movable connecting rod (61). An L-shaped connecting rod (68) is fixedly connected to the side of the fastening push plate (65) near the plug body (3).

2. The 135-degree pre-bent anti-damage rail guide plug structure according to claim 1, characterized in that: The outer surface of the movable link (61) is fitted inside the plug body (3). The plug body (3) has a first internal groove (62) and a second internal groove (63) inside. The movable link (61) extends to the first internal groove (62).

3. The 135-degree pre-bent anti-damage rail guide plug structure according to claim 2, characterized in that: One end of the spring (67) is fixedly connected to the outer surface of the fixing plate (66), and the other end of the spring (67) away from the fixing plate (66) is fixedly connected to the inner surface of the first internal groove (62).

4. The 135-degree pre-bent anti-damage rail guide plug structure according to claim 2, characterized in that: The L-shaped connecting rod (68) is disposed inside the second internal groove (63), and the end of the horizontal portion of the L-shaped connecting rod (68) extends to the outside of the plug body (3).

5. The 135-degree pre-bent anti-damage rail guide plug structure according to claim 2, characterized in that: The outer surface of the plug body (3) is provided with a groove (64), the inside of the groove (64) is adapted to the outer surface of the fastening push plate (65), and the outer surface of the fixing plate (66) is fitted inside the first inner groove (62).

6. The 135-degree pre-bent anti-damage rail lead-in plug structure according to claim 5, characterized in that: The movable connecting rod (61), the first internal groove (62), the second internal groove (63), the groove (64), the fastening push plate (65), the fixing plate (66), the spring (67) and the L-shaped connecting rod (68) are all arranged in a ring around the axis of the plug body (3). The end of the horizontal part of the L-shaped connecting rod (68) is provided with a binding rope (69).

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