clamping positioning mechanism

Abstract

The application relates to a clamping positioning mechanism, two clamping devices for fixing the rail bases of rails on different tracks, and a short-circuit connecting line with two ends connected with the clamping devices; wherein the clamping device comprises a detachably connected positioning rod and a driving rod, the end of the positioning rod away from the driving rod is provided with a first clamping jaw, a sliding clamping piece is further slidably arranged on the positioning rod, and the first clamping jaw and the sliding clamping piece are respectively located on the two sides of the rail; a sliding seat is slidably arranged on the driving rod, and a spring is further sleeved outside the positioning rod and the driving rod, and the spring is located between the sliding clamping piece and the sliding seat. Compared with the prior art, the device realizes quick connection of two rails, improves the work efficiency of workers, and reduces the rail replacement operation time, the device adopts an innovative clamping structure, the clamping force of the device is several times higher than that of a traditional clip, and stable connection can be maintained under various complex working conditions.

Description

Technical Field

[0001] This application relates to the field of railway engineering technology, and in particular to a clamping and positioning mechanism. Background Technology

[0002] With the rapid development of China's railway industry, heavy-haul railways are showing a trend of increasing heavy-haul transport volume year by year. Due to the increase in transport volume, the damage to the rails in the tracks is increasing year by year. Since rails need to be replaced in time after serious damage, when connecting two rails of the same line for rail replacement, the short-circuit copper wire currently used can only be simply clamped to both ends of the bottom of the two rails with two small clips. This has practical problems in field application, such as easy slippage and insufficient contact surface leading to poor short-circuit effect. At present, there is no quick-installation device for rail short-circuit connection wire on the market that can be installed quickly and stably.

[0003] In related technologies, when it is necessary to connect two rails in rail replacement operations, the short-circuit copper wire clamps currently used are unstable. The clamping mechanism has a complicated fixing process and generally poor stability. After long-term use, it is prone to loosening or falling off, which affects the quality and efficiency of safe operation. Utility Model Content

[0004] Therefore, it is necessary to provide a clamping and positioning mechanism to address the problems of unstable short-circuit copper wire clamping when connecting two rails in the current process. The clamping mechanism has a complicated fixing process and generally poor stability, and is prone to loosening or falling off after long-term use, thus affecting the quality and efficiency of safe operation.

[0005] According to one aspect of this application, a clamping and positioning mechanism is provided for connecting rails, comprising: two clamping devices for fixing the rail bases of the rails on different tracks; a short-circuit connecting line, the two ends of which are respectively connected to the clamping devices; wherein, the clamping device includes a detachably connected positioning rod and a driving rod, a first gripper is provided at the end of the positioning rod away from the driving rod, and a sliding clamping member is slidably mounted on the positioning rod, the first gripper and the sliding clamping member being located on both sides of the rail; a slide block is slidably mounted on the driving rod, and a spring is sleeved on the outside of the positioning rod and the driving rod, the spring being located between the sliding clamping member and the slide block.

[0006] In one embodiment, a positioning cavity is formed on the outer wall of the drive rod facing the positioning rod, and a threaded rod is provided on the outer wall of the positioning rod facing the drive rod, the threaded rod being threadedly installed in the positioning cavity; the positioning rod is detachably installed on the drive rod via the threaded rod.

[0007] In one embodiment, the sliding clamping member includes a second gripper and a slide cylinder, the sliding clamping member being slidably mounted on the positioning rod via the slide cylinder.

[0008] In one embodiment, a plurality of limiting blocks are spaced apart on the inner wall of the slide cylinder, and a plurality of limiting grooves are spaced apart on the outer wall of the positioning rod. The limiting blocks are slidably disposed in the limiting grooves along the direction of the positioning rod.

[0009] In one embodiment, the clamping and positioning mechanism further includes an active drive arm, which is rotatably mounted on the drive rod at one end away from the positioning rod; a driven drive arm is rotatably mounted on the slide, and the end of the active drive arm away from the drive rod is rotatably connected to the end of the driven drive arm away from the slide.

[0010] In one embodiment, the active drive arm is further provided with a handle, which is covered with rubber.

[0011] In one embodiment, a first rotating shaft is rotatably mounted on the end of the drive rod away from the positioning rod, and the active drive arm is rotatably mounted on the drive rod via the first rotating shaft; a second rotating shaft is rotatably mounted on the end of the active drive arm away from the drive rod, and the driven drive arm is rotatably connected to the active drive arm via the second rotating shaft; a third rotating shaft is provided on the outer wall of the slide, and the slide is rotatably connected to the driven drive arm via the third rotating shaft.

[0012] In one embodiment, the clamping and positioning mechanism further includes two pads, which are respectively sleeved on the positioning rod and the driving rod and located on both sides of the spring; one of the pads is located between the sliding clamp and the spring, and the other pad is located between the slide and the spring.

[0013] In one embodiment, the clamping and positioning mechanism further includes a hanging member with a through hole, the hanging member being sleeved on the positioning rod through the through hole; the hanging member is located between the sliding clamping member and a pad near the side of the sliding clamping member.

[0014] In one embodiment, the hanging component is further provided with a mounting hole, through which the short-circuit connecting wire is connected to the clamping device; the inner diameter of the through hole is larger than the outer diameter of the positioning rod.

[0015] This application has the following beneficial effects:

[0016] Compared to existing technologies, this device enables rapid connection of two rails and allows for quick clamping of the rail bases, improving work efficiency and reducing rail replacement time. Compared to traditional connection methods, installation time is reduced from an average of 15 minutes to less than 3 minutes, increasing installation efficiency by over 80%. Employing an innovative clamping structure, the device's clamping force is several times greater than traditional clamps, maintaining a stable connection under various complex working conditions and effectively preventing work interruptions and safety hazards caused by loosening or slippage. By increasing the contact area with the rails, the device significantly improves short-circuit performance, ensuring excellent electrical connection performance and meeting the stringent electrical parameter requirements of railway operations. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of an embodiment of this application.

[0018] Figure 2 This is the overall three-dimensional structure of the holding device in one embodiment of this application. Figure 1 .

[0019] Figure 3 A cross-sectional view of the holding device in one embodiment of this application. Figure 1 .

[0020] Figure 4 A cross-sectional view of the holding device in one embodiment of this application. Figure 2 .

[0021] Figure 5 This is the overall three-dimensional structure of the holding device in one embodiment of this application. Figure 2 .

[0022] Explanation of reference numerals in the attached figures:

[0023] 1. Short-circuited connection wire;

[0024] 2. Clamping device; 201. Positioning rod; 202. Drive rod; 203. First gripper; 204. Sliding clamping component; 2041. Second gripper; 2042. Slide cylinder; 2043. Limiting block; 205. Limiting groove; 206. Slide seat; 207. Active drive arm; 2071. Handle; 2072. Rubber sheet; 208. Driven drive arm; 209. First rotating shaft; 210. Second rotating shaft; 211. Third rotating shaft; 212. Hanging component; 213. Through hole; 214. Mounting hole; 215. Spring; 216. Washer; 217. Positioning cavity; 218. Threaded rod. Detailed Implementation

[0025] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0026] In the description of this application, it should be understood that if terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application 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, and therefore should not be construed as a limitation of this application.

[0027] Furthermore, where the terms "first" and "second" appear, these terms are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, where the term "multiple" appears, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0028] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0029] In this application, unless otherwise expressly specified and limited, the use of descriptions such as "above" or "below" the second feature indicates that the first and second features are in direct contact or indirect contact via an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. Similarly, "below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0030] It should be noted that if an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. If so, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application are for illustrative purposes only and do not represent the only possible implementation.

[0031] See Figure 1 -Appendix Figure 5 , Figure 1 A schematic diagram of the overall structure of a clamping and positioning mechanism according to an embodiment of this application is shown. This mechanism is used for connecting different rails and includes two clamping devices 2 for fixing the rail bases on different tracks. A short-circuit connecting line 1 is connected to the clamping devices 2 at both ends. Each clamping device 2 includes a detachably connected positioning rod 201 and a driving rod 202. A first gripper 203 is provided at the end of the positioning rod 201 away from the driving rod 202. A sliding clamping member 204 is also slidably mounted on the positioning rod 201. The first gripper 203 and the sliding clamping member 204 are located on opposite sides of the rail. A sliding seat 206 is slidably mounted on the driving rod 202. A spring 215 is sleeved on the outside of the positioning rod 201 and the driving rod 202, located between the sliding clamping member 204 and the sliding seat 206.

[0032] When the device is in operation, it is first placed between two rails, then the clamping device 2 is placed at the bottom of the two rails, and then the first clamp 203 is clamped against one side of the rail. Then, the handle 2071 drives the active drive arm 207 to rotate clockwise. At this time, under the action of the driven drive arm 208, the slide 206 moves inward along the drive rod 202 and squeezes the spring 215. At this time, the second clamp 2041 squeezes the other side of the rail.

[0033] See Figure 4A positioning cavity 217 is provided on the outer wall of the drive rod 202 facing the positioning rod 201, and a threaded rod 218 is provided on the outer wall of the positioning rod 201 facing the drive rod 202. The threaded rod 218 is threadedly installed in the positioning cavity 217. The positioning rod 201 is detachably installed on the drive rod 202 through the threaded rod 218.

[0034] In some embodiments, the holding device 2 is designed to be detachable to facilitate the installation and replacement of the spring 215. During installation, the spring 215 is first sleeved on the positioning rod 201 or the drive rod 202, and then the positioning rod 201 is inserted into the positioning cavity 217 and the positioning rod 201 or the drive rod 202 is rotated.

[0035] In some embodiments, during use, the compression degree of the spring 215 can be adjusted via the positioning rod 201 and the positioning cavity 217, thereby adjusting the clamping force according to actual needs. Employing a design based on the lever principle and a wedge-shaped clamping structure, the device can be quickly and automatically clamped securely to the bottom of the rail via the handle 2071. Compared to traditional clamp structures, the clamping force is greater and more stable, effectively preventing slippage.

[0036] The shapes of the first gripper 203 and the second gripper 2041 are carefully designed to fit the bottom of the rail better, greatly increasing the contact area, thereby reducing contact resistance, significantly improving the short-circuit effect, and ensuring the electrical connection performance during operation.

[0037] In some embodiments, to ensure the device has good conductivity, sufficient strength, and durability, the first gripper 203 and the sliding clamping member 204 are made of a high-strength, highly conductive copper alloy. This material not only meets electrical performance requirements but also maintains structural stability under long-term use and complex operating conditions. The positioning rod 201, the drive rod 202, and the handle 2071 are made of high-strength alloy steel to withstand the large forces generated during clamping and releasing.

[0038] After the machining of each component is completed, the assembly phase begins. The assembly process strictly adheres to design requirements, ensuring the accurate placement of all components. Following assembly, the device undergoes comprehensive testing, including clamping force testing, conductivity testing, and ease-of-installation and disassembly testing. Through this testing, any issues identified are promptly addressed and optimized to ensure that all performance indicators of the device meet design requirements.

[0039] See appendix Figure 2 The sliding clamp 204 includes a second clamp 2041 and a slide cylinder 2042. The sliding clamp 204 is slidably mounted on the positioning rod 201 via the slide cylinder 2042.

[0040] In some embodiments, during operation, the first gripper 203 and the second gripper 2041 are located on both sides of the I-shaped steel rail.

[0041] See Figure 2 -Appendix Figure 3 Multiple limiting blocks 2043 are spaced apart on the inner wall of the sliding cylinder 2042, and multiple limiting grooves 205 are spaced apart on the outer wall of the positioning rod 201. The limiting blocks 2043 are slidably disposed in the limiting grooves 205 along the direction of the positioning rod 201.

[0042] In some embodiments, in order to improve the stability of the sliding clamp 204 during movement and to make the second clamp 2041 and the first clamp 203 located on the same side, so as to prevent the second clamp 2041 from accidentally deflecting relative to the positioning rod 201 and thus improve the locking effect, a mutually cooperating limiting block 2043 and limiting groove 205 inner structure are designed.

[0043] In some embodiments, in order to facilitate the assembly and disassembly of the sliding clamp 204, the limiting groove 205 extends along the direction of the positioning rod 201 and reaches the position of the threaded rod 218.

[0044] See appendix Figure 2 and attached Figure 4 -Appendix Figure 5 The clamping and positioning mechanism also includes an active drive arm 207, which is rotatably mounted on the drive rod 202 at one end away from the positioning rod 201; the active drive arm 207 is rotatably mounted on the slide block 206, and the end of the active drive arm 207 away from the drive rod 202 is rotatably connected to the end of the driven drive arm 208 away from the slide block 206.

[0045] In some embodiments, in the original state, the spring 215 does not compress the sliding clamp 204, and the distance between the first clamp 203 and the second clamp 2041 is greater than the width of the rail. In order to drive the sliding clamp 204 to slide inward along the positioning rod 201, thereby clamping both sides of the rail, a linkage-coordinated active drive arm 207 and an active drive arm 207 structure are designed.

[0046] See appendix Figure 3 -Appendix Figure 4 The active drive arm 207 is also equipped with a handle 2071, and the handle 2071 is also covered with rubber 2072.

[0047] In some embodiments, a handle 2071 is designed to facilitate the rotation of the active drive arm 207, thereby enabling the locking and unlocking of the rail. Based on the principle of torque, the operator can save effort by using the handle 2071.

[0048] When the active drive arm 207 is rotated by the handle 2071, a rubber structure 2072 is designed to increase friction and achieve anti-slip.

[0049] See appendix Figure 2 and attached Figure 4 -Appendix Figure 5 A first rotating shaft 209 is rotatably mounted on the end of the drive rod 202 away from the positioning rod 201, and the active drive arm 207 is rotatably mounted on the drive rod 202 via the first rotating shaft 209; a second rotating shaft 210 is rotatably mounted on the end of the active drive arm 207 away from the drive rod 202, and the driven drive arm 208 is rotatably connected to the active drive arm 207 via the second rotating shaft 210; a third rotating shaft 211 is provided on the outer wall of the slide 206, and the slide 206 is rotatably connected to the driven drive arm 208 via the third rotating shaft 211.

[0050] In some embodiments, when connecting two rails of the same line on site, the device is first placed between the two rails, then the clamping device 2 is placed at the bottom of the two rails, and then the first clamp 203 is clamped against one side of the rail. Then, the handle 2071 drives the active drive arm 207 to rotate clockwise. At this time, under the action of the driven drive arm 208, the slide 206 moves inward along the drive rod 202 and squeezes the spring 215. At this time, the second clamp 2041 squeezes the other side of the rail.

[0051] When the clamping device 2 needs to be disassembled, since the rail has an "I" shaped structure, the active drive arm 207 is driven to rotate counterclockwise by the handle 2071. At this time, under the action of the driven drive arm 208, the slide 206 moves outward along the drive rod 202 and releases the spring 215. At this time, the second gripper 2041 and the first gripper 203 release the pressure on both sides of the rail. Finally, the clamping device 2 can be taken out from the bottom of the rail.

[0052] During installation or removal, since the clamping device 2 needs to be placed at the bottom of the rail, a portion of the gravel at the bottom of the rail is removed using tools to free up working space.

[0053] See appendix Figure 2 and attached Figure 4 The clamping and positioning mechanism also includes two washers 216, which are respectively sleeved on the positioning rod 201 and the drive rod 202 and located on both sides of the spring 215; one washer 216 is located between the sliding clamp 204 and the spring 215, and the other washer 216 is located between the slide block 206 and the spring 215.

[0054] In some embodiments, when in operation, the spring 215 is compressed and pressed tightly against the slides 206 and the hanger 212 on both sides. In order to further improve the fit and avoid damage to the surface of the parts after long-term use, two pads 216 are designed.

[0055] In some embodiments, to avoid jamming or movement interference, the inner diameter of the gasket 216 is larger than the outer diameter of the positioning rod 201.

[0056] See appendix Figure 2 and attached Figure 4 -Appendix Figure 5 The clamping and positioning mechanism also includes a hanging member 212, which has a through hole 213. The hanging member 212 is sleeved on the positioning rod 201 through the through hole 213. The hanging member 212 is located between the sliding clamping member 204 and the pad 216 near the side of the sliding clamping member 204.

[0057] In some embodiments, during operation, under the compression of the spring 215, the first gripper 203 and the second gripper 2041 clamp and lock the two sides of the bottom of the track respectively. At this time, under the action of the spring 215, the hanging member 212 is tightly attached to the side of the sliding clamp 204. At this time, the track, the sliding clamp 204 and the hanging member 212 form a stable passage.

[0058] In some embodiments, the spring 215 is typically made of alloy materials such as carbon steel or stainless steel (e.g., 65Mn steel, 304 stainless steel) to meet the requirements of elasticity, strength, and fatigue resistance. These materials have a much lower conductivity than pure copper and are not excellent conductors themselves. To further improve the conductivity, the hanger 212 is located on one side of the sliding clamp 204.

[0059] See appendix Figure 4 -Appendix Figure 5 The hanging component 212 is also provided with a mounting hole 214, through which the short-circuit connecting wire 1 is connected to the clamping device 2; the inner diameter of the through hole 213 is larger than the outer diameter of the positioning rod 201.

[0060] In some embodiments, when connecting different tracks on both sides, the two ends of the short-circuit connecting line 1 are respectively installed on the two side clamping devices 2 and installed in the mounting hole 214.

[0061] In some embodiments, when the hanger 212 moves along the positioning rod 201, in order to ensure smooth movement and avoid jamming, the inner diameter of the through hole 213 is larger than the outer diameter of the positioning rod 201.

[0062] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0063] The above embodiments merely illustrate several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A clamping and positioning mechanism for connecting different steel rails, characterized in that, include: Two clamping devices (2) are used to fix the bottom of the rails on different tracks; A short-circuit connecting line (1) is connected at both ends to the clamping device (2) to make electrical connections between different rails; The clamping device (2) includes a detachably connected positioning rod (201) and a driving rod (202). A first gripper (203) is provided at the end of the positioning rod (201) away from the driving rod (202). A sliding clamping member (204) is also slidably installed on the positioning rod (201). The first gripper (203) and the sliding clamping member (204) are located on both sides of the rail. A slide block (206) is slidably disposed on the drive rod (202), and a spring (215) is also sleeved on the outside of the positioning rod (201) and the drive rod (202). The spring (215) is located between the sliding clamp (204) and the slide block (206).

2. The clamping and positioning mechanism according to claim 1, characterized in that, The driving rod (202) has a positioning cavity (217) on the outer wall facing the positioning rod (201), and a threaded rod (218) is provided on the outer wall facing the driving rod (202). The threaded rod (218) is threadedly installed in the positioning cavity (217). The positioning rod (201) is detachably mounted on the drive rod (202) via the threaded rod (218).

3. The clamping and positioning mechanism according to claim 1, characterized in that, The sliding clamp (204) includes a second clamp (2041) and a slide (2042), and the sliding clamp (204) is slidably disposed on the positioning rod (201) via the slide (2042).

4. The clamping and positioning mechanism according to claim 3, characterized in that, The inner wall of the slide cylinder (2042) is provided with a plurality of limiting blocks (2043) spaced apart, and the outer wall of the positioning rod (201) is provided with a plurality of limiting grooves (205) spaced apart. The limiting blocks (2043) are slidably disposed in the limiting grooves (205) along the direction of the positioning rod (201).

5. The clamping and positioning mechanism according to any one of claims 1-4, characterized in that, The clamping and positioning mechanism further includes an active drive arm (207), which is rotatably mounted on the drive rod (202) at one end away from the positioning rod (201); A driven arm (208) is rotatably mounted on the slide (206). The end of the driven arm (207) away from the drive rod (202) is rotatably connected to the end of the driven arm (208) away from the slide (206).

6. The clamping and positioning mechanism according to claim 5, characterized in that, The active drive arm (207) is also provided with a handle (2071), and the handle (2071) is also covered with rubber (2072).

7. The clamping and positioning mechanism according to claim 5, characterized in that, A first rotating shaft (209) is rotatably mounted on one end of the drive rod (202) away from the positioning rod (201), and the active drive arm (207) is rotatably mounted on the drive rod (202) via the first rotating shaft (209); And / or, the end of the active drive arm (207) away from the drive rod (202) is rotatably provided with a second rotating shaft (210), and the driven drive arm (208) is rotatably connected to the active drive arm (207) through the second rotating shaft (210); And / or, a third rotating shaft (211) is provided on the outer wall of the slide (206), and the slide (206) is rotatably connected to the driven arm (208) through the third rotating shaft (211).

8. The clamping and positioning mechanism according to any one of claims 1-4, characterized in that, The clamping and positioning mechanism further includes two pads (216), which are respectively sleeved on the positioning rod (201) and the driving rod (202) and located on both sides of the spring (215); one of the pads (216) is located between the sliding clamp (204) and the spring (215), and the other pad (216) is located between the slide (206) and the spring (215).

9. The clamping and positioning mechanism according to claim 8, characterized in that, The clamping and positioning mechanism further includes a hanging member (212), which has a through hole (213) and is sleeved on the positioning rod (201) through the through hole (213); the hanging member (212) is located between the sliding clamp (204) and the pad (216) near the side of the sliding clamp (204).

10. The clamping and positioning mechanism according to claim 9, characterized in that, The hanging component (212) is also provided with a mounting hole (214), and the short-circuit connecting wire (1) is connected to the clamping device (2) through the mounting hole (214); And / or, the inner diameter of the through hole (213) is greater than the outer diameter of the positioning rod (201).

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