Limit measuring device for subway track

Abstract

The utility model relates to the technical field of gauge measurement, in particular to a gauge measurement device for a subway track. Comprising a base, stand columns arranged on the base and idler wheels arranged on the two sides of the base, and the idler wheels make contact with the upper end face of a subway track and are used for driving the device to walk on the track. A measuring mechanism is fixed to the top end of the stand column, the stand column is rotationally connected with the base, and a stand column perpendicularity adjusting mechanism is arranged between the stand column and the base. The stand column perpendicularity adjusting mechanism comprises two screw rod seats which are rotationally connected with the stand column and the base respectively, each screw rod seat is provided with a screw rod, a threaded sleeve is jointly arranged between the two screw rods in a sleeved mode, and the directions of threads at the two ends of the threaded sleeve are opposite. According to the vertical column perpendicularity adjusting mechanism, the perpendicularity of the vertical column can be rapidly adjusted, the accuracy of measured data is guaranteed, the displayer can be used for displaying measured numerical values in real time, the measuring efficiency is improved, and the brake mechanism is used for positioning the measuring device and preventing the measuring device from sliding in the measuring process.

Description

Technical Field

[0001] This utility model relates to the field of clearance measurement technology, specifically a clearance measurement device for subway tracks. Background Technology

[0002] A track clearance measuring device is a specialized piece of equipment used to ensure railway traffic safety. It is primarily used to measure the clearance around the tracks where trains operate. Clearance refers to the safe space that must be maintained on both sides and above the tracks during train operation to prevent collisions with other objects. With the rapid development of railway transportation and the large-scale operation of high-speed trains, the demand for track clearance measuring devices is increasing daily.

[0003] Current track clearance measurement devices are expensive and cumbersome to operate. In particular, they cannot quickly verify the verticality of the measurement device, which affects measurement efficiency and accuracy. Summary of the Invention

[0004] In view of the above situation and to overcome the defects of the prior art, this utility model provides a clearance measuring device for subway tracks to solve the problems involved in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a clearance measuring device for subway tracks, comprising a base, a column on the base, and rollers on both sides of the base, wherein the rollers are in contact with the upper surface of the subway track and are used to drive the device to move on the track.

[0006] A measuring mechanism is fixed at the top of the column, the column is rotatably connected to the base, and a column verticality adjustment mechanism is provided between the column and the base.

[0007] The column verticality adjustment mechanism includes two screw seats that are rotatably connected to the column and the base, respectively. Each screw seat is provided with a screw, and a threaded sleeve is fitted between the two screws. The threads at both ends of the threaded sleeve are in opposite directions.

[0008] Furthermore, connecting plates are provided on both sides of the base, and the rollers are mounted on the connecting plates;

[0009] Each connecting plate is equipped with two rollers.

[0010] Furthermore, a level is installed on the column.

[0011] Furthermore, the column includes a lower column and an upper column sleeved on the lower column, and a bolt positioning knob is provided between the upper column and the lower column to lock the relative position of the upper column and the lower column.

[0012] The lower column is equipped with a scale to indicate the length of the column.

[0013] Furthermore, the base is also equipped with a display, which is connected to the measuring mechanism and is used to display the detection values ​​of the measuring mechanism in real time.

[0014] Furthermore, it also includes a braking mechanism, which is located on one side of any connecting plate and includes a housing fixed to the connecting plate, two pressure blocks that are horizontally slidably connected to the housing, two pull rods that are rotatably connected to the center of the two pressure blocks, and a rotating rod whose two ends are rotatably connected to the two pull rods. A rotating handle is fixed at the center of the rotating rod, and the rotating handle passes through the housing and extends to the outside of the housing.

[0015] Furthermore, the pressure blocks are respectively located on both sides of the track to press the track tightly from both sides.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] The column verticality adjustment mechanism of this utility model can quickly adjust the verticality of the column to ensure the accuracy of the measurement data. The display can be used to display the measurement values ​​in real time, increasing the measurement efficiency. The braking mechanism is used to position the measuring device and prevent slippage during the measurement process. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the main structure of Embodiment 1 of this utility model;

[0019] Figure 2 This is a top view of Embodiment 1 of the present invention.

[0020] Figure 3 This is a top view of the internal structure of the braking mechanism in Embodiment 2 of this utility model;

[0021] In the picture:

[0022] Base 1, column 2, lower column 21, upper column 22, roller 3, connecting plate 4, measuring mechanism 5, display 6, screw seat 7, screw 8, threaded sleeve 9, level 10, brake mechanism 11, housing 12, pressure block 13, pull rod 14, rotating rod 15, rotating handle 16. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0024] Example 1:

[0025] Depend on Figure 1-2 As shown, a clearance measuring device for subway tracks includes a base 1, a column 2 mounted on the base 1, and rollers 3 on both sides of the base 1. Connecting plates 4 are respectively provided on both sides of the base 1, and the rollers 3 are mounted on the connecting plates 4. Each connecting plate 4 has two rollers 3. The rollers 3 contact the upper surface of the subway track and are used to drive the device to move on the track.

[0026] A measuring mechanism 5 is fixed to the top of the column 2. The column 2 is rotatably connected to the base 1. The column 2 includes a lower column 21 and an upper column 22 sleeved on the lower column 21. A bolt positioning knob is provided between the upper column 22 and the lower column 21 to lock the relative position of the upper column 22 and the lower column 21. A scale is provided on the part of the lower column 21 inside the upper column 22 to indicate the elongation of the column 2 and thus the height of the measuring mechanism 5. The base 1 is also provided with a display 6, which is connected to the measuring mechanism 5 to display the detection values ​​of the measuring mechanism 5 in real time.

[0027] A column verticality adjustment mechanism is provided between the column 2 and the base 1. This mechanism includes two screw seats 7, each rotatably connected to the column 2 and the base 1 respectively. Each screw seat 7 has a screw 8, and a threaded sleeve 9 is fitted between the two screws 8. The threads at both ends of the threaded sleeve 9 are in opposite directions. Rotating the threaded sleeve 9 controls the overall length of the screw 8 and the threaded sleeve 9, thereby causing the column 2 and base 1 to rotate relative to each other, adjusting the verticality of the column 2. A level 10 is provided on the column 2. The column verticality adjustment mechanism adjusts the angle of the column 2, and the level 10 indicates the verticality of the column, increasing measurement accuracy.

[0028] Example 2:

[0029] The similarities between this embodiment and Embodiment 1 will not be repeated here. The differences are as follows:

[0030] like Figure 3As shown, the device also includes a braking mechanism 11, which is located on one side of any connecting plate 4. The braking mechanism 11 includes a housing 12 fixed to the connecting plate 4, two pressure blocks 13 horizontally slidably connected to the housing 12, two pull rods 14 rotatably connected to the centers of the two pressure blocks 13, and a rotating rod 15 rotatably connected to the two pull rods 14 at both ends. The center of the rotating rod 15 is rotatably connected to the housing 12. A rotating handle 16 is fixed at the center of the rotating rod 15, passing through the housing 12 and extending to the outside of the housing 12. The pressure blocks 13, made of elastic material, are located on both sides of the track and are used to press the track from both sides. The closest distance between the two pressure blocks 13 is slightly less than the width of the track. When the rotating handle 16 is rotated, the rotating rod 15 rotates accordingly. When the rotating rod 15 rotates 90 degrees, the pull rods 14 at both ends of the rotating rod 15 pull the pressure blocks 13 inward, causing the pressure blocks 13 to slide relative to each other along the housing 12, thereby clamping the track. This ensures that the measuring device will not slip during measurement.

[0031] Although embodiments of the present 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 present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A clearance measuring device for subway tracks, characterized in that: It includes a base, a column on the base, and rollers on both sides of the base. The rollers are in contact with the upper surface of the subway track and are used to drive the device to move on the track. A measuring mechanism is fixed at the top of the column, the column is rotatably connected to the base, and a column verticality adjustment mechanism is provided between the column and the base. The column verticality adjustment mechanism includes two screw seats that are rotatably connected to the column and the base, respectively. Each screw seat is provided with a screw, and a threaded sleeve is fitted between the two screws. The threads at both ends of the threaded sleeve are in opposite directions.

2. The clearance measuring device for subway tracks according to claim 1, characterized in that: The base has connecting plates on both sides, and the rollers are mounted on the connecting plates. Each connecting plate is equipped with two rollers.

3. The clearance measuring device for subway tracks according to claim 1, characterized in that: A level is installed on the column.

4. The clearance measuring device for subway tracks according to claim 1, characterized in that: The column includes a lower column and an upper column sleeved on the lower column. A bolt positioning knob is provided between the upper column and the lower column to lock the relative position of the upper column and the lower column. The lower column is equipped with a scale to indicate the length of the column.

5. The clearance measuring device for subway tracks according to claim 1, characterized in that: The base is also equipped with a display, which is connected to the measuring mechanism and is used to display the detection values ​​of the measuring mechanism in real time.

6. The clearance measuring device for subway tracks according to claim 2, characterized in that: It also includes a braking mechanism, which is located on one side of any connecting plate and includes a housing fixed to the connecting plate, two pressure blocks that are horizontally slidably connected to the housing, two pull rods that are rotatably connected to the center of the two pressure blocks, and a rotating rod whose two ends are rotatably connected to the two pull rods. A rotating handle is fixed at the center of the rotating rod, and the rotating handle passes through the housing and extends to the outside of the housing.

7. The clearance measuring device for subway tracks according to claim 6, characterized in that: The pressure blocks are respectively located on both sides of the track and are used to press the track tightly from both sides.

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