Sensor fixing device for track detection

Abstract

The utility model discloses a sensor fixing device for track detection, which comprises a track, two ends of the track are respectively clamped with a first U-shaped plate and a second U-shaped plate, one end of the first U-shaped plate far away from the track is fixedly connected with a connecting plate, a first worm rotatably connected with the connecting plate is arranged on the connecting plate in a penetrating manner, and a second worm rotatably connected with the second U-shaped plate is arranged on the second U-shaped plate. The tail end of the first worm is fixedly connected with a second worm, the tail end of the second worm is rotationally connected with the connecting plate, the outer wall of the first worm is fixedly connected with a handle, and the first worm and the second worm are both meshed with worm wheels. According to the fixing device, traditional bolt installation is replaced, and the fixing device can be firmly installed through the self-locking performance of the worm gear and the worm; by arranging the air bag, the sensor can abut against the surface of the track, and the detection precision is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of track detection, in particular to a sensor fixing device for track detection. Background Art

[0002] Tracks are components of railways. Under extreme temperature conditions, issues such as track expansion due to heat, contraction due to cold, and fracture are very important, so the temperature of the tracks needs to be tested.

[0003] The temperature sensors installed on the existing tracks are fixed by bolts. When a train passes, it will cause strong vibrations to the railway rails, which will easily cause the bolts of the temperature sensors fixed on the tracks to loosen, resulting in the contact between the sensor and the track is no longer tight, resulting in inaccurate temperature results. In order to solve the above problems, a sensor fixing device for track detection is proposed in the present application. Utility Model Content

[0004] The purpose of the utility model is to solve the shortcomings of the prior art and to propose a sensor fixing device for track detection. The fixing device replaces the traditional bolt installation and can be firmly installed through the self-locking property of the worm gear; the airbag is provided to make the sensor close to the surface of the track, thereby improving the detection accuracy.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A sensor fixing device for track detection comprises a track, wherein two ends of the track are respectively clamped with a first U-shaped plate and a second U-shaped plate, and an end of the first U-shaped plate away from the track is fixedly connected to a connecting plate, a first worm is penetrated by the connecting plate and is rotatably connected to the first worm, an end of the first worm is fixedly connected to the second worm, and an end of the second worm is rotatably connected to the connecting plate, a handle is fixedly connected to the outer wall of the first worm, the first worm and the second worm are both meshed with worm wheels, and the two worm wheels are penetrated by a threaded rod coaxially fixedly connected to the first U-shaped plate, each of the threaded rods penetrates the first U-shaped plate and is rotatably connected to the first U-shaped plate, the outer wall of each of the threaded rods is sleeved with a hollow column threadedly connected to the first U-shaped plate, and the two hollow columns are fixedly connected to the second U-shaped plate, and grooves are provided at the opposite ends of the first U-shaped plate and the second U-shaped plate, and an airbag is fixedly connected to the inner wall of each groove, and each airbag is fixedly connected to a temperature sensor, and the temperature sensor is arranged in the groove.

[0007] Preferably, the outer wall of the handle is provided with a protective cover, and the material of the protective cover is rubber.

[0008] Preferably, each of the threaded rods is rotatably connected to the connecting plate.

[0009] Preferably, the outer wall of the threaded rod is provided with an external thread, the hollow column is provided with a thread groove, and the inner wall of the thread groove is provided with an internal thread matching the external thread.

[0010] Preferably, the two hollow columns are mounted and fixed to the second U-shaped plate by welding.

[0011] Preferably, both ends of the airbag are mounted and fixed to the inner wall of the groove and the outer wall of the temperature sensor by bonding.

[0012] Compared with the prior art, the utility model has the following beneficial effects:

[0013] 1. The staff holds the handle and rotates it to drive the first worm and the second worm to rotate, and then drives the two worm wheels and the threaded rod to rotate synchronously, so that the hollow column and the second U-shaped plate move toward the direction of the first U-shaped plate, until the first U-shaped plate and the second U-shaped plate are respectively clamped and fixed to the two ends of the track. The self-locking of the worm wheel and worm is used to ensure the locking, instead of the bolt installation, to avoid the problem of loosening of the bolts caused by the vibration caused by the passing of the train.

[0014] 2. The device can be disassembled by holding the handle and rotating it in reverse, and installed at different positions of the track to achieve temperature detection.

[0015] 3. By filling the airbag with air, the temperature sensor can be closely pressed against the outer wall of the track, so that the temperature sensor can accurately detect the temperature of the track and reduce the error.

[0016] In summary, the fixing device replaces the traditional bolt installation, and the self-locking property of the worm gear can make the fixing device firmly installed; the airbag can be provided to make the sensor close to the surface of the track, thereby improving the detection accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a first structural schematic diagram of a sensor fixing device for track detection proposed by the utility model;

[0018] Figure 2 This is a second structural schematic diagram of a sensor fixing device for track detection proposed by the utility model;

[0019] Figure 3 This is a partial structural cross-sectional view of a sensor fixing device for track detection proposed by the utility model;

[0020] Figure 4 for Figure 2 A magnified view of the structure in the middle.

[0021] In the figure: 1 track, 2 first U-shaped plate, 3 second U-shaped plate, 4 connecting plate, 5 first worm, 6 second worm, 7 handle, 8 worm wheel, 9 threaded rod, 10 hollow column, 11 groove, 12 air bag, 13 temperature sensor. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0023] Reference Figure 1-Figure 4 A sensor fixing device for track detection includes a track 1. The track 1 is placed on a sleeper, the ground is paved with stones, and part of the track 1 is suspended. The two ends of the track 1 are respectively clamped with a first U-shaped plate 2 and a second U-shaped plate 3. By clamping the two ends of the track 1 with the first U-shaped plate 2 and the second U-shaped plate 3, the device can be installed and disassembled easily to detect different positions.

[0024] The end of the first U-shaped plate 2 away from the track 1 is fixedly connected to a connecting plate 4, and a first worm 5 is penetrated by the connecting plate 4 and rotatably connected to the connecting plate 4. The end of the first worm 5 is fixedly connected to a second worm 6, and the end of the second worm 6 is rotatably connected to the connecting plate 4. A handle 7 is fixedly connected to the outer wall of the first worm 5, and the outer wall of the handle 7 is provided with a protective cover, which is made of rubber to increase comfort.

[0025] The first worm 5 and the second worm 6 are both meshed with a worm wheel 8, and the two worm wheels 8 are both penetrated by a threaded rod 9 coaxially fixedly connected thereto, each threaded rod 9 penetrates the first U-shaped plate 2 and is rotatably connected thereto, and each threaded rod 9 is rotatably connected to the connecting plate 4, and the outer wall of each threaded rod 9 is sleeved with a hollow column 10 threadedly connected thereto, the outer wall of the threaded rod 9 is provided with an external thread, and the hollow column 10 is provided with a threaded groove, and the inner wall of the threaded groove is provided with an internal thread matching the external thread, and the two hollow columns 10 are fixedly connected to the second U-shaped plate 3, and the two hollow columns 10 are installed and fixed to the second U-shaped plate 3 by welding, and the distance between the first U-shaped plate 2 and the second U-shaped plate 3 can be adjusted by rotating the handle 7, which is convenient for disassembly and assembly.

[0026] The first U-shaped plate 2 and the second U-shaped plate 3 are provided with grooves 11 at the opposite ends, and the inner wall of each groove 11 is fixedly connected with an airbag 12, and each airbag 12 is fixedly connected with a temperature sensor 13, which can detect the temperature of the track 1 to detect whether the current track temperature is within the locked track temperature range. Both ends of the airbag 12 are installed and fixed to the inner wall of the groove 11 and the outer wall of the temperature sensor 13 by bonding. The temperature sensor 13 is arranged in the groove 11. The airbag 12 is filled with air, so that the temperature sensor 13 can be pressed against the outer wall of the track 1, and the temperature detection is more accurate.

[0027] In the utility model, the staff places the first U-shaped plate 2 and the second U-shaped plate 3 at the two ends of the track 1 respectively, and the staff holds the handle 7 to rotate to drive the first worm 5 and the second worm 6 to rotate, thereby driving the two worm wheels 8 and the threaded rod 9 to rotate synchronously, so that the hollow column 10 and the second U-shaped plate 3 move in the direction of the first U-shaped plate 2 until the first U-shaped plate 2 and the second U-shaped plate 3 are respectively clamped and fixed to the two ends of the track 1. The self-locking of the worm wheel and the worm gear ensures the locking, replaces the bolt installation, and avoids the problem of the bolt loosening caused by the vibration caused by the passing of the train; the device can be disassembled by holding the handle 7 and rotating it in the opposite direction, and can be installed at different positions of the track 1 to realize temperature detection; the air bag 12 is filled with air to make the temperature sensor 13 tightly against the outer wall of the track 1, so that the temperature sensor 13 fits the outer wall of the track 1 to accurately detect its temperature, thereby reducing the error.

[0028] The utility model can make the fixing device firmly installed through the self-locking property of the worm gear, and the airbag is arranged to make the sensor close to the surface of the track, thereby solving the problem of the prior art that when a train passes, the railway rails will be subjected to strong vibrations, so that the bolts of the temperature sensor fixed on the track are easily loosened, resulting in the contact between the sensor and the track is no longer close, resulting in inaccurate temperature results.

Claims

1. A sensor fixing device for track detection, comprising a track (1), characterized in that: The two ends of the track (1) are respectively clamped with a first U-shaped plate (2) and a second U-shaped plate (3); the end of the first U-shaped plate (2) away from the track (1) is fixedly connected to a connecting plate (4); a first worm (5) rotatably connected to the connecting plate (4) is passed through the connecting plate (4); a second worm (6) is fixedly connected to the end of the first worm (5); the end of the second worm (6) is rotatably connected to the connecting plate (4); a handle (7) is fixedly connected to the outer wall of the first worm (5); the first worm (5) and the second worm (6) are both meshed with worm wheels (8); and the two worm wheels (8) are both passed through with a first worm (5) rotatably connected to the connecting plate (4). A threaded rod (9) is coaxially fixedly connected, each of the threaded rods (9) penetrates the first U-shaped plate (2) and is rotatably connected thereto, the outer wall of each of the threaded rods (9) is sleeved with a hollow column (10) threadedly connected thereto, and the two hollow columns (10) are fixedly connected to the second U-shaped plate (3), and grooves (11) are provided at opposite ends of the first U-shaped plate (2) and the second U-shaped plate (3), and an air bag (12) is fixedly connected to the inner wall of each of the grooves (11), and each of the air bags (12) is fixedly connected to a temperature sensor (13), and the temperature sensor (13) is arranged in the groove (11).

2. A track detection sensor fixing device according to claim 1, characterized in that: The outer wall of the handle (7) is provided with a protective sleeve, and the material of the protective sleeve is rubber.

3. A track detection sensor fixing device according to claim 1, characterized in that: Each of the threaded rods (9) is rotatably connected to the connecting plate (4).

4. A track detection sensor fixing device according to claim 1, characterized in that: The outer wall of the threaded rod (9) is provided with an external thread, the hollow column (10) is provided with a thread groove, and the inner wall of the thread groove is provided with an internal thread matching the external thread.

5. A track detection sensor fixing device according to claim 1, characterized in that: The two hollow columns (10) are both installed and fixed to the second U-shaped plate (3) by welding.

6. A track detection sensor fixing device according to claim 1, characterized in that: Both ends of the airbag (12) are mounted and fixed to the inner wall of the groove (11) and the outer wall of the temperature sensor (13) by bonding.

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