Turnout fine improvement chord line fixing frame

Abstract

The utility model relates to a kind of turnout fine improvement chord line fixing frame applied to the field of turnout fine improvement, including mounting bracket, the right end of mounting bracket is fixedly connected with positioning ring, the lower end of positioning ring is screwed through with limiting screw rod, the upper end of positioning ring is fixedly connected with clamping plate, the surface of clamping plate is excavated with clamping groove, the upper end of clamping plate is movably penetrated with limiting plate, the right end of mounting bracket is screwed through with adjusting screw rod, the left end of adjusting screw rod is fixedly connected with clamping plate, by the contact between top rod and track, the surface of track is self-adapting, and by the reaction force between multiple extrusion balls, top rod is limited, so that multiple top rod can still be stable clamping to track under rain or oil state, to effectively improve clamping effect, so that the stability of mounting bracket is improved, enough clamping force is provided for chord, effectively avoid mounting bracket to shake when using, to effectively maintain the tight state of chord.

Description

Technical Field

[0001] This utility model relates to a turnout fine rechord fixing bracket, and in particular to a turnout fine rechord fixing bracket applied in the field of turnout fine modification. Background Technology

[0002] Railway inspections ensure the flatness and geometric standards of the track surface, promptly detect and repair track damage and deformation, and ensure the stability and safety of trains during high-speed operation. Important inspection parameters include track alignment, elevation, and versine. In turnout fine-tuning and TQI comprehensive renovation, it is often necessary to reroute the turnout straight track and the turnout unit within 100 meters before and after it. The ordinary 25-meter chord line cannot meet this requirement.

[0003] Chinese Patent Publication No. CN221649550U discloses a multifunctional track measuring chord frame. This utility model, by setting two mutually separate clamping parts, can be used for measuring tracks of various lengths. The chord hook in the clamping parts ensures that the chord remains horizontal during the measurement process. The chord wheel set on one of the clamping parts facilitates the retrieval and release of the chord. The limiting part, together with the hanging part set on the other clamping part, ensures that the chord is always in a taut state, improving the accuracy and scientific nature of the test results.

[0004] In existing technologies, the string clamping mechanism uses a tension screw to rotate and drive a baffle to move, thereby clamping the track. When the track surface is contaminated with oil, rainwater, or is uneven, the friction between the baffle and the track decreases, making the clamping mechanism prone to wobbling. When fixing the string, it needs to be kept taut. If the clamping mechanism shakes, the string may no longer be taut, thus affecting the accuracy of the measurement. Utility Model Content

[0005] The technical problem that this utility model aims to solve in view of the above-mentioned prior art is that when the surface of the track is covered with oil stains, rainwater, or is uneven, the baffle and the track are prone to shaking, which makes the fixing frame unstable during use and may cause the string to lose its tension, thereby affecting the accuracy of the measurement.

[0006] To solve the above problems, this utility model provides a turnout fine-tuning line fixing bracket, including a mounting bracket. A positioning ring is fixedly connected to the right end of the mounting bracket. A limit screw is threaded through the lower end of the positioning ring. A clamping plate is fixedly connected to the upper end of the positioning ring. A groove is chiseled on the surface of the clamping plate. The limit plate is movably connected to the upper end of the clamping plate. An adjusting screw is threaded through the right end of the mounting bracket. A clamping plate is fixedly connected to the left end of the adjusting screw. A knob is fixedly connected to the right end of the adjusting screw, which is movably connected to the positioning ring. The clamping plate has a hollow structure. Multiple push rods are movably connected to the left end of the clamping plate. A telescopic tube is movably sleeved on the outside of the push rod. The right end of the telescopic tube is fixedly connected to the clamping plate. The left end of the telescopic tube is fixedly connected to the outer surface of the push rod. The right end of the push rod is located inside the clamping plate. Multiple extrusion balls are saturated and filled inside the clamping plate.

[0007] In the aforementioned turnout chord fixing frame, the distance between the compression plate and the track can be adjusted laterally by means of a screw. When the track surface is uneven, the push rod generates independent displacement through contact with the track, adaptively conforming to the track profile. Furthermore, the reaction force between multiple compression balls restricts the push rod, allowing multiple push rods to stably clamp the track even in rain or oil conditions, thereby effectively improving the clamping effect and enhancing the stability of the fixing frame. This provides sufficient clamping force for the chord, effectively preventing the fixing frame from shaking during use and thus effectively maintaining the tautness of the chord.

[0008] As a further supplement to this application, the longitudinal section of the mounting bracket is an inverted U-shape, the inner wall of the positioning ring is in contact with the outer surface of the adjusting screw, and the clamping plate is located inside the mounting bracket.

[0009] As a further supplement to this application, the upper end of the limiting screw abuts against the adjusting screw, the slot is inverted L-shaped, and the lower end of the limiting plate is located in the slot.

[0010] As a further supplement to this application, the push rods are arranged in a ring array around the clamping plate, and the left end of the push rods is rounded.

[0011] As a further addition to this application, the telescopic tube is elastic, and the diameter of the compression ball is smaller than the diameter of the push rod.

[0012] As a further supplement to this application, the extrusion ball includes a metal ball located within a clamping plate, and an elastic layer is fixedly sleeved on the outer surface of the metal ball.

[0013] In summary, two fixed frames can be installed on the track. The distance between the extrusion plate and the track can be adjusted laterally by a screw. Then, through the contact between the push rods and the track, multiple push rods are pushed to move inward toward the clamping plate, allowing multiple extrusion balls to move inside the clamping plate. When the track surface is uneven, it can adapt to the track surface, and the reaction force between the multiple extrusion balls restricts the push rods, so that the multiple push rods can still stably clamp the track even in rain or oil conditions, thereby effectively improving the clamping effect, enhancing the stability of the fixed frames, providing sufficient clamping force for the string, effectively preventing the fixed frames from shaking during use, and thus effectively maintaining the tension of the string. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the first embodiment of this application;

[0015] Figure 2 This is a schematic diagram of the positioning ring structure according to the first embodiment of this application;

[0016] Figure 3 This is a three-dimensional structural diagram of the second embodiment of this application;

[0017] Figure 4 This is a schematic diagram of the clamping plate structure according to the second embodiment of this application;

[0018] Figure 5 This is a schematic diagram of the push rod structure according to the second embodiment of this application;

[0019] Figure 6 This is a schematic diagram of the push rod movement according to the second embodiment of this application.

[0020] Figure 7 This is a cross-sectional view of the extruded ball structure according to the second embodiment of this application.

[0021] Explanation of the labels in the diagram:

[0022] 1-Mounting bracket, 2-Positioning ring, 3-Limiting screw, 4-Clamping plate, 5-Clamping groove, 6-Limiting plate, 7-Adjusting screw, 8-Clamping plate, 9-Knob, 10-Top rod, 11-Telescopic tube, 12-Extrusion ball, 121-Metal ball, 122-Elastic layer. Detailed Implementation

[0023] The two embodiments of this application will be described in detail below with reference to the accompanying drawings.

[0024] First implementation method:

[0025] Figure 1 and Figure 2The diagram shows a turnout recurve fixing bracket, including a mounting bracket 1. The longitudinal section of the mounting bracket 1 is an inverted U-shape. A positioning ring 2 is fixedly connected to the right end of the mounting bracket 1. The lower end of the positioning ring 2 is threaded through a limit screw 3. A clamping plate 4 is fixedly connected to the upper end of the positioning ring 2. A groove 5 is carved on the surface of the clamping plate 4. A limit plate 6 is movably passed through the upper end of the clamping plate 4. The groove 5 is an inverted L-shape, which can be used to clamp the recurve wire into the groove 5 to limit the recurve wire. The lower end of the limit plate 6 is located in the groove 5. The right end of the mounting bracket 1 is threaded through... An adjusting screw 7 is inserted through the groove. The upper end of the limiting screw 3 abuts against the adjusting screw 7, thereby limiting the adjusting screw 7 and effectively preventing the adjusting screw 7 from rotating under external vibration or impact. A clamping plate 8 is fixedly connected to the left end of the adjusting screw 7. The clamping plate 8 is located inside the mounting bracket 1. The right end of the adjusting screw 7 is movably inserted through the positioning ring 2 and fixedly connected to a knob 9. The inner wall of the positioning ring 2 fits against the outer surface of the adjusting screw 7, effectively preventing the adjusting screw 7 from tilting when rotating.

[0026] When using this mounting bracket, the mounting bracket 1 can be clamped onto the track. Then, turn the knob 9 to rotate the adjusting screw 7 and move it towards the track until the surface of the clamping plate 8 contacts the track. Then, screw in the limiting screw 3 so that the upper end of the limiting screw 3 abuts against the adjusting screw 7, thereby effectively preventing the adjusting screw 7 from rotating under external vibration or impact, effectively improving the stability of the adjusting screw 7, and ensuring that the clamping plate 8 is in close contact with the track, providing stable support for the straightening of the string. Then, pull the limiting plate 6 upward to expose the slot 5, insert the string into the slot 5, wrap it around and fix it on the clamping plate 4, and then insert the limiting plate 6. The string is fitted into the clamping plates 4 on both mounting brackets and kept taut. After the limiting plate 6 is inserted, it covers the slot 5, effectively preventing the string from falling off during installation, thereby effectively improving the stability of the string.

[0027] Second implementation method:

[0028] This embodiment adds a top rod 10, a telescopic tube 11, and a compression ball 12 to the first embodiment, while the rest remains the same as the first embodiment.

[0029] Figures 3-6The clamping plate 8 is hollow, and multiple push rods 10 are movably inserted through its left end. Telescopic tubes 11 are movably sleeved around the push rods 10. The right end of the telescopic tube 11 is fixedly connected to the clamping plate 8, and the left end is fixedly connected to the outer surface of the push rods 10. The right end of the push rods 10 is located inside the clamping plate 8. The clamping plate 8 is saturated with multiple extrusion balls 12. The push rods 10 are arranged in a ring array around the clamping plate 8. The left end of the push rods 10 is rounded. The telescopic tube 11 has elasticity. The telescopic tube 11 acts as a spring, facilitating the reset of the push rod 10 and effectively preventing the push rod 10 from dislodging from the clamping plate 8. The diameter of the extrusion ball 12 is smaller than the diameter of the push rod 10. The push rod 10 first contacts the track. As the clamping plate 8 moves, the push rod 10 moves toward the interior of the clamping plate 8. When the push rod 10 moves inside the clamping plate 8, it exerts pressure on the extrusion ball 12, causing the extrusion balls 12 to transmit force to each other and generate radial reaction force, thereby restricting the lateral movement of the push rod 10.

[0030] Figure 7 As shown: the extrusion ball 12 includes a metal ball 121 located in the clamping plate 8. An elastic layer 122 is fixedly sleeved on the outer surface of the metal ball 121. A stable force chain network is formed through hard contact between the metal balls 121 to ensure efficient transmission of clamping force. The elastic layer 122 can elastically deform to compensate for the assembly gap between multiple metal balls 121, effectively avoiding rigid jamming. At the same time, it increases the friction between multiple metal balls 121, effectively improving the clamping effect.

[0031] When installing and fixing the mounting bracket 1, the rotation of the adjusting screw 7 causes the clamping plate 8 to move towards the track. At this time, the push rod 10 first contacts the track. As the clamping plate 8 moves, the push rod 10 moves towards the inside of the clamping plate 8. When the push rod 10 moves inside the clamping plate 8, it puts pressure on the extrusion ball 12, causing the extrusion ball 12 to transmit force to each other and generate radial reaction force, thereby restricting the lateral movement of the push rod 10. This allows multiple push rods 10 to stably clamp the track even in rain or oil. When the track surface is uneven, the distance the push rod 10 moves towards the inside of the clamping plate 8 is also different, causing multiple extrusion balls 12 to move inside the clamping plate 8. This creates an uneven state for the multiple push rods 10, which adapts to the surface of the track, improving the stability of the fixing bracket and providing sufficient clamping force for the string. This effectively prevents the fixing bracket from shaking during use and effectively maintains the tension of the string.

[0032] In light of current practical needs, the above-described embodiments adopted in this application are not limited to these. Any changes made within the scope of knowledge possessed by those skilled in the art without departing from the concept of this application still fall within the protection scope of this utility model.

Claims

1. A turnout fine-tuning guide fixing bracket, comprising a mounting bracket (1), characterized in that: The right end of the mounting bracket (1) is fixedly connected to a positioning ring (2). The lower end of the positioning ring (2) is threaded through a limiting screw (3). The upper end of the positioning ring (2) is fixedly connected to a clamping plate (4). The surface of the clamping plate (4) is chiseled with a groove (5). The upper end of the clamping plate (4) is movably connected through a limiting plate (6). The right end of the mounting bracket (1) is threaded through an adjusting screw (7). The left end of the adjusting screw (7) is fixedly connected to a clamping plate (8). The right end of the adjusting screw (7) movably passes through the positioning ring (2) and is fixedly connected to a knob (9). The clamping plate (8) has a hollow structure, and multiple push rods (10) are movably passed through the left end of the clamping plate (8). A telescopic tube (11) is movably sleeved on the outside of the push rod (10). The right end of the telescopic tube (11) is fixedly connected to the clamping plate (8), and the left end of the telescopic tube (11) is fixedly connected to the outer surface of the push rod (10). The right end of the push rod (10) is located inside the clamping plate (8). The clamping plate (8) is saturated with multiple extrusion balls (12).

2. The turnout fine-tuning guide fixing bracket according to claim 1, characterized in that: The longitudinal section of the mounting frame (1) is an inverted U-shape, the inner wall of the positioning ring (2) is in contact with the outer surface of the adjusting screw (7), and the clamping plate (8) is located inside the mounting frame (1).

3. The turnout fine-tuning guide fixing bracket according to claim 1, characterized in that: The upper end of the limiting screw (3) abuts against the adjusting screw (7), the slot (5) is an inverted L-shape, and the lower end of the limiting plate (6) is located in the slot (5).

4. The turnout fine-tuning guide fixing bracket according to claim 1, characterized in that: Multiple push rods (10) are arranged in a ring array around the clamping plate (8), and the left end of each push rod (10) is rounded.

5. A turnout fine-tuning guide fixing bracket according to claim 1, characterized in that: The telescopic tube (11) is elastic, and the diameter of the extrusion ball (12) is smaller than the diameter of the top rod (10).

6. A turnout fine-tuning guide fixing bracket according to claim 5, characterized in that: The extrusion ball (12) includes a metal ball (121) located inside the clamping plate (8), and an elastic layer (122) is fixedly sleeved on the outer surface of the metal ball (121).

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