Light rail inspection vehicle roof clamping device

Abstract

A lightweight track inspection vehicle clamping device relates to the field of track inspection systems. The clamping device is a modular structure comprising a fixed clamp body, a movable jaw, a clamping slider, a fastening screw, and a locking nut. The fixed clamp body has a nut groove on its top surface and a first L-shaped boss and a trapezoidal boss on its bottom surface. The movable jaw has a second L-shaped boss on its bottom surface. The fixed clamp body and the movable jaw are connected to form a positioning and clamping device. The clamping slider has a trapezoidal groove on its top surface, which connects with the trapezoidal boss on the bottom surface of the fixed clamp body to form a positioning stop device. The bottom of the clamping slider has an arc-shaped boss. When the inspection vehicle passes over it, the arc-shaped boss presses the inspection vehicle against the track, thereby eliminating displacement deviations caused by inertia, vibration, or track gaps, meeting the positioning accuracy requirements for wireless charging. The components of this device can be manufactured using 3D printing, and the installation position and clamping depth can be adjusted as needed, offering strong compatibility.

Description

Technical Field

[0001] This utility model relates to the field of track inspection systems, specifically a clamping device for a lightweight track inspection vehicle. Background Technology

[0002] Track inspection systems typically use I-beams or H-beams as tracks, with the inspection vehicle mounted on them and moving along the tracks. The vehicle's movement, monitoring, and communication functions are powered by batteries, requiring periodic return to the origin for wireless charging. High positioning accuracy is crucial during charging; otherwise, issues such as excessive heat generation during wireless charging, reduced charging efficiency, or even charging failure can occur. To accommodate track joints and curves, sufficient clearance must be maintained between the inspection vehicle and the track, inherently compromising accuracy and conflicting with the positioning accuracy requirements of wireless charging. Summary of the Invention

[0003] To improve the positioning accuracy of rail inspection vehicles, this utility model provides a lightweight rail inspection vehicle clamping device. The clamping device is a combined structural component, including a fixed clamp body, a movable clamp jaw, a clamping slider, a fastening screw, and a locking nut. The fixed clamp body and the movable clamp jaw are connected to form a positioning and clamping structure to clamp the upper flange of the rail. The clamping slider and the fixed clamp body form a positioning stop structure. An arc-shaped boss is provided at the bottom of the clamping slider. When the inspection vehicle passes by, the arc-shaped boss squeezes the inspection vehicle towards the rail, thereby eliminating the displacement deviation of the inspection vehicle caused by inertia, vibration, or rail gaps, and meeting the positioning accuracy requirements of wireless charging.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: the clamping device is a combined structural component, comprising a fixed clamp body, a movable jaw, a clamping slider, a fastening screw, and a locking nut; the fixed clamp body has a first nut groove and a second nut groove on its top surface, and a first L-shaped boss and a trapezoidal boss on its bottom surface; the movable jaw has a second L-shaped boss on its bottom surface; the fixed clamp body and the movable jaw are connected to form a positioning and clamping device; the clamping slider has a trapezoidal groove on its top surface, which is connected to the trapezoidal boss on the bottom surface of the fixed clamp body to form a positioning stop device; the clamping slider is slidably disposed on the bottom side of the fixed clamp body; the bottom of the clamping slider has an arc-shaped boss that clamps the track inspection vehicle.

[0005] Furthermore, two circular through holes are provided on the side of the movable jaw, which penetrate the movable jaw horizontally.

[0006] Furthermore, the first locking nut is axially embedded in the first nut groove, the opening direction of the threaded hole of the first locking nut is consistent with the depth direction of the first nut groove, the inner contour of the first nut groove is precisely matched with the hexagonal shape of the first locking nut, and the first locking nut is fixed in the first nut groove.

[0007] Furthermore, the first fastening screw passes sequentially through the movable jaw and the corresponding first locking nut on the fixed jaw, and is then tightened.

[0008] Furthermore, the first L-shaped boss and the second L-shaped boss are symmetrically arranged according to the upper flange size of the I-beam rail, with their horizontal surfaces fitting against the top surface of the upper flange and clamping the rail.

[0009] Furthermore, the second locking nut is placed horizontally in the second nut groove, with the hexagonal plane of the locking nut fitting against the bottom plane of the groove. The inner contour of the second nut groove precisely matches the outer shape of the second locking nut, and the second locking nut is fixed in the second nut groove.

[0010] Furthermore, two elongated through holes are provided in the trapezoidal groove, and are spaced apart along the sliding direction of the clamping slider.

[0011] Furthermore, the second fastening screw passes through the elongated through hole and the corresponding second locking nut on the fixing clamp body in sequence, and the second fastening screw is tightened. Loosening the second fastening screw allows for back-and-forth adjustment along the trapezoidal boss at the bottom of the fixing clamp body.

[0012] Furthermore, the fixed clamp body, movable jaw, and clamping slider are manufactured by 3D printing.

[0013] After adopting the above technical solution, the beneficial effects of this utility model are as follows: When the track inspection vehicle passes by, it will contact the arc-shaped protrusion at the bottom of the clamping slider. The guiding effect of the arc-shaped protrusion on the inspection vehicle eliminates the displacement deviation caused by inertia, vibration or track gap of the traditional inspection vehicle, thereby improving the positioning accuracy of the guide rail inspection vehicle; the structure of this solution is simple, in which the fixed clamp body, movable clamp jaw and clamping slider are made by 3D printing, which is low in cost and high in efficiency, and is suitable for lightweight track inspection vehicles; the installation is convenient, the installation position and clamping depth can be adjusted as needed, and the compatibility is strong. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the structure of this utility model.

[0016] Figure 2 yes Figure 1 The second angle view.

[0017] Figure 3 yes Figure 1 Parallel perspective view.

[0018] Figure 4 This is a slanted view of the top slider.

[0019] Figure 5 yes Figure 1 Top view.

[0020] Explanation of reference numerals in the attached drawings: Fixed clamp body (1), first nut groove (1-1), second nut groove (1-2), first locking nut (1-3), first L-shaped boss (1-4), trapezoidal boss (1-5), movable jaw (2), first fastening screw (2-1), second L-shaped boss (2-2), top-tightening slider (3), arc-shaped boss (3-1), trapezoidal groove (3-2), oblong through hole (3-3), second fastening screw (3-4), second locking nut (3-5), I-beam rail (4). Detailed Implementation

[0021] See Figure 1-5 As shown, the technical solution adopted in this specific embodiment is as follows: the clamping device is a combined structural component, which includes a fixed clamp body (1), a movable clamp jaw (2), a clamping slider (3), a first fastening screw (2-1), a second fastening screw (3-4), a first locking nut (1-3), and a second locking nut (3-5); the fixed clamp body (1) has a first nut groove (1-1) and a second nut groove (1-2) on its top surface, and a first L-shaped boss (1-4) and a trapezoidal boss (1-5) on its bottom surface. The bottom surface of the movable jaw (2) is provided with a second L-shaped boss (2-2). The fixed jaw (1) is connected to the movable jaw (2) to form a positioning and clamping device. The top surface of the top-tightening slider (3) is provided with a trapezoidal groove (3-2), which is connected to the trapezoidal boss (1-5) on the bottom surface of the fixed jaw (1) to form a positioning stop device. The top-tightening slider (3) is slidably disposed on the bottom side of the fixed jaw (1). The bottom of the top-tightening slider (3) is provided with an arc-shaped boss (3-1) and it presses against the track inspection vehicle.

[0022] More specifically, the movable jaw (2) has two circular through holes on its side, which penetrate horizontally through the movable jaw (2). The first locking nut (1-3) is axially embedded in the first nut groove (1-1). The opening direction of the threaded hole of the first locking nut (1-3) is consistent with the depth direction of the first nut groove (1-1). The inner contour of the first nut groove (1-1) is precisely matched with the hexagonal shape of the first locking nut (1-3). The first locking nut (1-3) is fixed in the first nut groove (1-1). During installation, only the first fastening screw (2-1) needs to be turned to tighten it. No wrench is required, which realizes tool-free locking and improves installation efficiency.

[0023] More specifically, the first fastening screw (2-1) passes sequentially through the movable jaw (2) and the corresponding first locking nut (1-3) on the fixed jaw (1), and the first fastening screw (2-1) is tightened to fix the fixed jaw (1) to the movable jaw (2). The first L-shaped boss (1-4) and the second L-shaped boss (2-2) are symmetrically arranged according to the upper flange size of the I-beam rail (4), with their horizontal surfaces abutting the top surface of the upper flange and clamping the rail (4). After loosening the first fastening screw (2-1), the clamping device can be adjusted along the rail to change its installation position. After tightening the first fastening screw (2-1), the movable jaw (2) and the fixed jaw (1) form a positioning and clamping device to achieve anti-slip function and ensure a stable fixation with the I-beam.

[0024] More specifically, the second locking nut (3-5) is placed horizontally within the second nut groove (1-2), with the hexagonal plane of the second locking nut (3-5) fitting against the bottom plane of the second nut groove (1-2). The inner contour of the second nut groove (1-2) precisely matches the hexagonal shape of the second locking nut (3-5). The second locking nut (3-5) is fixed within the second nut groove (1-2), and during installation, only the second fastening screw (3-4) needs to be rotated to tighten it; no wrench is required. Two elongated through holes (3-3) are provided within the trapezoidal groove (3-2), and are spaced apart along the sliding direction of the top-tightening slider (3). The second fastening screw (3-4) passes through the elongated through hole (3-3) and locks with the second locking nut (3-5) in sequence, so that the top-tightening slider (3) is installed at the bottom of the fixed clamp body (1). Loosening the second locking nut (3-5) allows for back-and-forth adjustment along the trapezoidal boss (1-5) at the bottom of the fixed clamp body (1), thereby adjusting the tightness of the track inspection vehicle. After adjusting the tightness position, it is re-locked to achieve flexible positioning.

[0025] More specifically, the bottom of the clamping slider (3) is provided with an arc-shaped boss (3-1) for clamping the rail inspection vehicle. When the rail inspection vehicle passes by, it will contact the arc-shaped boss (3-1) at the bottom of the clamping slider (3). The guiding effect of the arc-shaped boss (3-1) on the inspection vehicle eliminates the displacement deviation caused by inertia, vibration or track gap of the traditional inspection vehicle, thereby improving the positioning accuracy of the rail inspection vehicle.

[0026] More specifically, the structures of the fixed clamp (1), movable jaw (2), and clamping slider (3) have been optimized and can all be manufactured using 3D printing technology, thereby shortening the manufacturing cycle and reducing manufacturing costs. Its structural strength is suitable for lightweight track inspection vehicles.

[0027] The working principle of this utility model is as follows: The fixed clamp body and the movable jaw are connected by fastening screws and locking nuts, so that they are clamped to the rail flange and placed at the origin of the rail. When the inspection vehicle passes by, it first contacts the top-tightening slider, and the arc-shaped protrusion at the bottom of the top-tightening slider squeezes the inspection vehicle toward the rail, thereby eliminating the displacement deviation of the inspection vehicle caused by inertia, vibration or rail gap, and meeting the positioning accuracy requirements of wireless charging.

[0028] The above description is only used to illustrate the technical solution of this utility model and is not intended to limit it. Any other modifications or equivalent substitutions made by those skilled in the art to the technical solution of this utility model, as long as they do not depart from the spirit and scope of the technical solution of this utility model, should be covered within the scope of the claims of this utility model.

Claims

1. A clamping device for a lightweight rail inspection vehicle, characterized in that: The tightening device is a combined structural component, comprising a fixed clamp body (1), a movable jaw (2), a tightening slider (3), a first fastening screw (2-1), a first locking nut (1-3), a second locking nut (3-5), and a second fastening screw (3-4). The fixed clamp body (1) has a first nut groove (1-1) and a second nut groove (1-2) on its top surface, and a first L-shaped boss (1-4) and a trapezoidal boss (1-5) on its bottom surface. The movable jaw (2) has a... A second L-shaped boss (2-2) is provided. The fixed clamp body (1) is connected to the movable jaw (2) to form a positioning and clamping device. The top surface of the top-tightening slider (3) is provided with a trapezoidal groove (3-2), which is connected to the trapezoidal boss (1-5) on the bottom surface of the fixed clamp body (1) to form a positioning stop device. The top-tightening slider (3) is slidably provided on the bottom side of the fixed clamp body (1). The bottom of the top-tightening slider (3) is provided with an arc-shaped boss (3-1) and it presses against the track inspection vehicle.

2. The top clamp device of the light rail inspection vehicle according to claim 1, characterized in that: The movable jaw has two circular through holes on its side, which extend horizontally through the movable jaw.

3. The top clamp device of the light rail inspection vehicle according to claim 1, characterized in that: The first locking nut (1-3) is axially embedded in the first nut groove (1-1). The opening direction of the threaded hole of the first locking nut (1-3) is consistent with the depth direction of the first nut groove (1-1). The inner contour of the first nut groove (1-1) is precisely matched with the hexagonal shape of the first locking nut (1-3). The first locking nut (1-3) is fixed in the first nut groove (1-1).

4. The top clamp device of the light rail inspection vehicle according to claim 1, characterized in that: The first fastening screw (2-1) passes through the movable jaw (2) and the corresponding first locking nut (1-3) on the fixed jaw (1) in sequence, and the first fastening screw (2-1) is tightened.

5. The top clamp device of a light rail inspection vehicle according to claim 1, wherein: The first L-shaped boss (1-4) and the second L-shaped boss (2-2) are symmetrically arranged according to the upper flange size of the I-beam rail (4), and their horizontal surfaces are attached to the top surface of the upper flange and clamp the rail.

6. The clamping device for a lightweight rail inspection vehicle according to claim 1, characterized in that: The second locking nut (3-5) is placed horizontally in the second nut groove (1-2), and the hexagonal plane of the locking nut fits the bottom plane of the groove. The inner contour of the second nut groove (1-2) is precisely matched with the outer shape of the second locking nut (3-5), and the second locking nut (3-5) is fixed in the second nut groove (1-2).

7. The top clamp device of a light rail inspection vehicle according to claim 1, characterized in that: Two elongated through holes (3-3) are provided in the trapezoidal groove (3-2), and are spaced apart along the sliding direction of the top-tightening slider (3).

8. The top clamp device of a light rail inspection vehicle according to claim 1, characterized in that: The second fastening screw (3-4) passes through the elongated through hole (3-3) and the corresponding second locking nut (3-5) on the fixing clamp body (1) in sequence, and the second fastening screw (3-4) is tightened. The second fastening screw (3-4) can be loosened and adjusted back and forth along the trapezoidal boss (1-5) at the bottom of the fixing clamp body (1).

9. The top clamp device of a light rail inspection vehicle according to claim 1, characterized in that: The fixed clamp body, movable jaws, and clamping slider are manufactured using 3D printing.

Images