Railway track gauge measuring device

Abstract

The present invention discloses a railway track spacing measuring device, which relates to the field of railway track measuring devices and includes a moving platform. The moving platform is horizontally placed between two rails of a railway track and can slide along the railway track. First telescopic arms and second telescopic arms are slidably arranged at both ends of the moving platform. A thrust assembly for keeping the first telescopic arms and the second telescopic arms in contact with the inner and outer sides of the rails respectively is installed in the moving platform. A detection assembly for measuring the sliding amounts of the first telescopic arms and the second telescopic arms is installed in the moving platform. Inspection boxes are fixedly installed at both ends of the moving platform and are respectively connected with sliding rods towards the first telescopic arms and the second telescopic arms. An inspection assembly for judging whether the two sliding rods slide synchronously and in the same direction is installed in the inspection boxes. During the movement of the moving platform in the present invention, by judging the telescopic amounts of the telescopic arms, the measurement of the track spacing can be conveniently realized during the movement of the moving platform, effectively ensuring the accuracy of the detection results.

Description

Technical Field

[0001] The invention relates to the field of railway track measuring devices, in particular to a railway track spacing measuring device. Background Art

[0002] Railway tracks are referred to as road rails, steel rails, and tracks. They are mainly used on railways. The rails are fastened by rail supports, fasteners, rail clamps, track clamps, spring bars, railroad spikes and other railway accessories. During construction, the spacing of the railway tracks needs to be controlled to make them the same. Regular maintenance of railway tracks also requires measuring the spacing of the tracks to ensure driving safety.

[0003] In the prior art, there is a method of measuring the spacing of railway tracks using measuring instruments. Workers are required to perform fixed-point measurements on the rails at multiple locations and then calculate whether the spacing of the railway tracks is compliant. This method is not only inefficient, but also has a large error in measuring the spacing of the rails.

[0004] The Chinese patent with the relevant announcement number CN116949876A discloses a dedicated line railway track spacing measuring device, including a machine body, in which a driving mechanism, a horizontal mechanism, a supporting mechanism and a marking mechanism are arranged; wherein the driving mechanism includes: a motor, the motor is fixedly connected to the left side of the top of the machine body near the middle, the motor has an output shaft, the motor output shaft is fixedly connected to a pulley 1, the outer side of the pulley 1 is connected to a belt, the bottom end of the belt is connected to a pulley 2, the middle part of the pulley 2 is fixedly connected to a bidirectional threaded rod, and the bidirectional threaded rod is threadedly connected to a ball nut pair near the left and right ends; the horizontal mechanism includes: It includes a vernier, a scale line, a spirit level, an electric telescopic rod and a gasket. The vernier is fixedly connected to the top of the ball nut pair, the scale line is set on the rear side of the top of the body, the spirit level is fixedly connected to the middle front end of the top of the body, the electric telescopic rod is fixedly connected to the four corners of the bottom of the body, and the gasket is fixedly connected to the bottom of the electric telescopic rod; the supporting mechanism includes a connecting rod, a supporting frame, a spring 1, a movable frame and a sliding wheel. The connecting rod is fixedly connected to the bottom of the ball nut pair, the supporting frame is fixedly connected to the bottom end of the connecting rod, the spring 1 is fixedly connected to the inner bottom of the supporting frame, the movable frame is fixedly connected to the left end of the spring 1, and the sliding wheel is rotatably connected to the inner side of the movable frame.

[0005] In response to the above-mentioned related technologies, the existing railway track spacing measuring device uses a touch mark method to determine whether the rail spacing is compliant. The marking mechanism that touches the rail requires a certain pressure to spray ink. It is difficult to accurately measure the slight changes in the rail spacing. In addition, for the parts of the rail that have a bend or an inclined angle at a curve, the existing marking mechanism is prone to false touches, resulting in the inaccurate detection of the rail spacing. In addition, the joints at the side joints of the rails and components such as rivets will also affect the accuracy of the measuring device in detecting the track spacing. In summary, the existing railway track spacing detection device is difficult to accurately detect the railway track spacing. Summary of the Invention

[0006] Based on this, the object of the present invention is to provide a railway track gauge measuring device to solve the technical problem that it is difficult for existing railway track gauge detection devices to accurately detect the gauge of railway tracks.

[0007] To achieve the above object, the present invention provides the following technical solution: A railway track gauge measuring device includes a moving platform, which is horizontally placed between two rails of a railway track and can slide along the railway track. At both ends of the moving platform, a first telescopic arm and a second telescopic arm are slidably arranged. A thrust component for keeping the first telescopic arm and the second telescopic arm in contact with the inner and outer sides of the rails respectively is installed in the moving platform. A detection component for measuring the sliding amount of the first telescopic arm and the second telescopic arm is installed in the moving platform. It further includes an inspection box, which is fixedly installed at both ends of the moving platform and is connected with sliding rods respectively facing the first telescopic arm and the second telescopic arm. An inspection component for judging whether the two sliding rods slide synchronously and in the same direction is installed in the inspection box.

[0008] By adopting the above technical solution, rollers that can be closely attached to the inner and outer sides of the track are respectively arranged at both ends of the moving platform that can move along the track. The rollers are connected by telescopic arms. After measuring the track gauge at the initial position of the moving platform, during the movement of the moving platform, by judging the telescopic amount of the telescopic arms, the measurement of the track gauge can be conveniently realized during the movement of the moving platform, effectively ensuring the accuracy of the detection result.

[0009] The present invention is further configured such that two support arms are respectively fixedly connected to both ends of the moving platform. An installation groove is provided at a position of the support arm close to the rail. A sliding rod is arranged in the installation groove along the width direction of the railway track. A tapered wheel is slidably connected to the sliding rod along its axis. The tapered surface of the tapered wheel faces the rail and is used to contact the inner top surface of the rail. A spring is arranged between the direction away from the tapered surface of the tapered wheel and the inner wall of the installation groove.

[0010] Preferably, the moving platform is supported by the tapered wheels arranged on the support arms to move on the railway track.

[0011] The present invention is further configured such that the first telescopic arm and the second telescopic arm are arranged in a staggered manner in the height direction in the moving platform, and a first roller for contacting the outer side of the rail and a second roller for contacting the inner side of the rail are respectively rotatably connected to the bottom ends. A pressure plate is fixedly connected to the end of the first telescopic arm away from the first roller. A spring compressed in the direction towards the end of the moving platform is arranged between the pressure plate and the inner wall of the moving platform. A spring compressed in the direction towards the center of the moving platform is arranged between the end of the second telescopic arm away from the second roller and the inner wall of the moving platform.

[0012] Preferably, the end structures of the first telescopic arm and the second telescopic arm are respectively in contact with the inner and outer side walls of the railway track.

[0013] The present invention is further configured such that the pressure plate and the second telescopic arm are fixedly connected with connecting rods in the direction toward the center of the mobile platform, and the mobile platform is installed with a first hydraulic rod and a second hydraulic rod coaxially corresponding to the connecting rods at different heights, respectively; the connecting rod connected to the pressure plate penetrates into the first hydraulic rod and is provided with a piston, and the connecting rod connected to the second telescopic arm penetrates into the second hydraulic rod and is provided with a piston.

[0014] Preferably, the change in the track spacing will directly cause the piston to slide in the corresponding hydraulic rod, thereby causing the liquid level height of the hydraulic oil to change, thereby more accurately measuring the change in the spacing of the railway tracks.

[0015] The present invention is further configured such that an end of the first hydraulic rod close to the center direction of the moving platform is connected to a first liquid guide tube, an end of the second hydraulic rod away from the center direction of the moving platform is connected to a second liquid guide tube, two liquid storage boxes respectively used to connect the first liquid guide tube and the second liquid guide tube are installed in the center of the moving platform, and ends of the two liquid storage boxes close to each other are both connected in a vertical direction to a liquid level box for detecting the hydraulic oil level, and a camera is arranged in the moving platform in the direction facing the liquid level box.

[0016] Preferably, a camera is used to capture the change of the liquid level in the liquid level box, thereby recording the change of the distance between the railway tracks during the movement of the mobile platform.

[0017] The present invention is further configured such that the mobile platform is provided with a connecting valve in a normally closed state between the two liquid storage boxes, the connecting valve is used to connect the two liquid storage boxes, and a button for controlling the opening of the valve core is provided on the top.

[0018] Preferably, when the railway track spacing measurement is started, the connecting valve can be used to level the liquid levels in the two liquid level boxes, so that the subsequent camera can record the changes in the liquid level in the liquid level box and calculate the railway track spacing.

[0019] The present invention is further configured such that vertical baffles are installed at intervals in the liquid level box along the moving direction of the moving platform, and the baffles are used to keep the liquid level in the liquid level box rising and falling steadily during the movement of the moving platform.

[0020] Preferably, the baffle can effectively prevent the shaking of the liquid surface in the liquid level box caused by the movement of the moving platform, thereby improving the accuracy of the camera in capturing the change of liquid level height.

[0021] The present invention is further configured such that two mutually parallel first resistance columns and second resistance columns are installed in the inspection box, and one ends of the two sliding rods located inside the inspection box are respectively slidably connected to the first resistance column and the second resistance column.

[0022] Preferably, by judging the resistance changes of the first resistance column and the second resistance column, it is judged whether the two sliding rods slide synchronously and in the same direction.

[0023] The present invention is further configured such that a cover plate is fixedly connected to the top end of the moving platform, and a box cover is rotatably connected to a position corresponding to the liquid storage box in the middle of the cover plate.

[0024] Preferably, after the box cover is opened, the button on the communication valve can be conveniently pressed.

[0025] The present invention is further configured such that an interface for connecting a pushing component is provided in the middle of the moving platform.

[0026] Preferably, by connecting the pushing component at the interface, the moving platform can be conveniently pushed to move on the railway track.

[0027] In summary, the present invention mainly has the following beneficial effects:

[0028] 1. By respectively arranging rollers capable of tightly attaching to the inner and outer sides of the track at both ends of the moving platform capable of moving along the track, and connecting the rollers with telescopic arms, after measuring the track spacing at the initial position of the moving platform, during the movement of the moving platform, by judging the telescopic amount of the telescopic arm, the measurement of the track spacing can be conveniently realized during the movement of the moving platform, effectively ensuring the accuracy of the detection result.

[0029] 2. By arranging a hydraulic mechanism in the middle of the moving platform, enabling each telescopic arm to individually control a hydraulic rod, connecting the hydraulic oil in the hydraulic rod to the liquid level box through a hydraulic pipeline, and conveniently calculating the change of the track spacing by shooting the height change of the liquid level in the liquid level box by a camera, thereby completing the measurement of the track spacing. At the same time, since the two identical telescopic arms on both sides are connected to the same hydraulic oil circuit, when the moving platform moves to a position such as a track turning, even if the telescopic arm expands or contracts when the track spacing remains unchanged, it will not affect the liquid level in the liquid level box, ensuring the accuracy of the track spacing detection.

[0030] 3. By arranging an inspection box between the two telescopic arms corresponding to the same track, connecting the two telescopic arms with sliding rods respectively, and connecting the other end of the telescopic rod to the resistance column in the inspection box, during the movement of the moving platform, since the width of a single railway track does not change, the distance between the two telescopic arms at the same end of the moving platform is detected in real time, effectively avoiding detection errors caused by the sliding of one of the telescopic arms. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 This is a three-dimensional view of the present invention placed on the track;

[0032] Figure 2 This is a three-dimensional view of the present invention placed on the track from another perspective;

[0033] Figure 3 of the present invention Figure 2 Enlarged view of A in

[0034] Figure 4 This is a three-dimensional view of the cover of the present invention in the open state;

[0035] Figure 5 This is a three-dimensional view of the cover of the present invention in the open state from another perspective;

[0036] Figure 6 of the present invention Figure 5 Enlarged view of B in

[0037] Figure 7 This is a three-dimensional view of the internal structure of the mobile station of the present invention;

[0038] Figure 8 of the present invention Figure 7 Enlarged view of C in

[0039] Figure 9 This is a three-dimensional view of the internal structure of the mobile station of the present invention from another perspective;

[0040] Figure 10 of the present invention Figure 9 Enlarged view of D in

[0041] Figure 11 This is a three-dimensional view of the internal structure of the inspection box of the present invention;

[0042] Figure 12 This is a three-dimensional view of the internal structure of the mobile station in the sectional state of the present invention;

[0043] Figure 13 of the present invention Figure 12 Enlarged view of E in

[0044] Figure 14 This is a three-dimensional view of the internal structure of the liquid level box of the present invention.

[0045] Explanation of reference numerals:

[0046] 1. Mobile station; 101. Sliding groove; 102. Installation frame; 2. Cover plate; 201. Box cover; 3. Support arm; 301. Installation groove; 302. Slide bar; 303. Tapered wheel; 4. First telescopic arm; 401. Pressure plate; 402. First roller; 5. Second telescopic arm; 501. Second roller; 6. Connecting rod; 7. Guide platform; 8. First hydraulic rod; 9. Second hydraulic rod; 10. First liquid guide pipe; 11. Second liquid guide pipe; 12. Installation plate; 1201. Back plate; 1202. Light-emitting plate; 13. Liquid storage box; 1301. Liquid level box; 1302. Sealing plate; 1303. Stop bar; 14. Connecting valve; 15. Camera; 16. Inspection box; 17. Slide bar; 18. First resistance column; 19. Second resistance column; 20. Push rod; 21. Railway track. Specific embodiments

[0047] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. The embodiments described below by referring to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as a limitation to the present invention.

[0048] The embodiments of the present invention will be described below according to its overall structure.

[0049] The first embodiment:

[0050] For the railway track spacing measuring device, please refer to Figures 1 - 14 , including the mobile station 1. Specifically, the mobile station 1 is in the shape of a cuboid and is horizontally placed between the two railway tracks 21 of the railway track and can slide along the railway track, effectively improving the efficiency of measuring the railway track spacing. The first telescopic arm 4 and the second telescopic arm 5 are slidably arranged at both ends of the mobile station 1. A thrust component for keeping the first telescopic arm 4 and the second telescopic arm 5 in contact with the inner and outer sides of the railway track 21 respectively is installed in the mobile station 1. In this embodiment, the thrust component specifically uses a spring. A detection component for measuring the sliding amount of the first telescopic arm 4 and the second telescopic arm 5 is installed in the mobile station 1. Specifically, in this application, the detection component uses the change of the hydraulic oil liquid level for reference with the initial position to indirectly obtain the spacing of the railway track. In other unpublished embodiments, other solutions such as visual detection of the sliding amount of the telescopic arm can also be used. The railway track spacing at the initial position of the movement of the mobile station 1 can be manually measured by using a mature measuring ruler in the prior art.

[0051] It further includes an inspection box 16. The inspection box 16 is fixedly installed at both ends of the mobile station 1 and is respectively connected with a slide bar 17 facing the first telescopic arm 4 and the second telescopic arm 5. An inspection component for judging whether the two slide bars 17 slide synchronously and in the same direction is installed in the inspection box 16.

[0052] In the above embodiment, specifically, please refer to againFigures 1 - 5 At both ends of the mobile station 1, two support arms 3 are fixedly connected respectively. A total of four support arms 3 can stably support the mobile station 1 to move on the railway track. An installation groove 301 is arranged at a position of the support arm 3 close to the railway track. A slide bar 302 is arranged in the installation groove 301 along the width direction of the railway track. A tapered wheel 303 is slidably connected to the slide bar 302 along the axis. The diameter of the tapered wheel 303 is greater than the thickness of the support arm 3, ensuring that when the tapered wheel 303 touches the railway track 21, the mobile station 1 will not directly contact the railway track 21.

[0053] Specifically, the tapered surface of the tapered wheel 303 faces the railway track 21 and is used to contact the inner top surface of the railway track 21. A spring is arranged between the direction of the tapered wheel 303 away from the tapered surface and the inner wall of the installation groove 301. The tapered wheel 303 arranged on the support arm 3 is used to support the mobile station 1 to move on the railway track. The overall weight of the measuring device is evenly distributed to the four tapered wheels 303, pushing the tapered wheel 303 towards the spring direction to compress the spring. The elastic force generated by the spring after being compressed resists the component force of the overall gravity of the detection device, thereby ensuring that the detection device moves smoothly on the railway track 21.

[0054] In the above embodiment, specifically, please refer to Figures 2 - 6 、 Figures 12 - 13 The first telescopic arm 4 and the second telescopic arm 5 are arranged in a staggered manner along the height direction inside the mobile station 1, and a first roller 402 for contacting the outside of the railway track and a second roller 501 for contacting the inside of the railway track are respectively rotatably connected to the bottom ends. Specifically, the first telescopic arm 4 is higher than the second telescopic arm 5. When the first telescopic arm 4 and the second telescopic arm 5 slide inside the mobile station 1, they will not interfere with each other. The first telescopic arm 4 extends towards both ends of the mobile station 1 outside the mobile station 1, and a sliding groove 101 for the second telescopic arm 5 to extend and slide is arranged at the bottom position of both ends of the mobile station 1. The second telescopic arm 5 extends from the sliding groove 101 and slides under the guidance of the sliding groove 101.

[0055] Specifically, a pressure plate 401 is fixedly connected to one end of the first telescopic arm 4 away from the first roller 402. A spring compressed towards the end direction of the mobile station 1 is arranged between the pressure plate 401 and the inner wall of the mobile station 1. The pressure plate 401 has a T-shaped structure. One end of the pressure plate 401 is fixedly connected to the first telescopic arm 4, and the other end is in contact with the spring. A spring compressed towards the center direction of the mobile station 1 is arranged between the end of the second telescopic arm 5 away from the second roller 501 and the inner wall of the mobile station 1. After the mobile station 1 is placed on the railway track, the end structures of the first telescopic arm 4 and the second telescopic arm 5 are respectively in contact with the inner and outer side walls of the railway track of the railway track.

[0056] In the above embodiment, specifically, please refer to Figures 1 - 2, an interface for connecting a pushing component is provided in the middle of the mobile station 1. By connecting the pushing component at the interface, the mobile station 1 can be conveniently pushed to move on the railway track. In this embodiment, the pushing component is specifically a push rod 20. One end of the push rod 20 is rotatably connected to the interface position of the mobile station 1, and the staff can hold the other end of the push rod 20 to push the mobile station 1. In other undisclosed embodiments, the pushing component can also be a manual rail car connected to the interface of the mobile station 1.

[0057] The second embodiment:

[0058] For the railway track spacing measuring device, please refer to Figures 1 - 14 , based on the first embodiment, the difference from the first embodiment is that connecting rods 6 are fixedly connected to both the pressure plate 401 and the second telescopic arm 5 in the direction towards the center of the mobile station 1. Specifically, a guiding platform 7 is also fixedly connected inside the mobile station 1. The connecting rod 6 passes through the guiding platform 7 and is slidably connected inside the guiding platform 7. The guiding platform 7 plays a role in guiding the connecting rod 6 to prevent the connecting rod 6 from bending and deforming due to its own excessive length, which affects the accuracy of the measurement data.

[0059] Furthermore, a first hydraulic rod 8 and a second hydraulic rod 9 corresponding coaxially to the connecting rods 6 at different heights are installed inside the mobile station 1. Specifically, an installation frame 102 for fixing the first hydraulic rod 8 and the second hydraulic rod 9 is installed inside the mobile station 1.

[0060] Specifically, the connecting rod 6 connected to the pressure plate 401 penetrates into the first hydraulic rod 8 and is provided with a piston. In the first hydraulic rod 8, the hydraulic oil is located between the piston and the end of the first hydraulic rod 8 close to the center of the mobile station 1. The connecting rod 6 connected to the second telescopic arm 5 penetrates into the second hydraulic rod 9 and is provided with a piston. In the second hydraulic rod 9, the hydraulic oil is located between the piston and the end of the second hydraulic rod 9 far from the center of the mobile station 1. The change in the track spacing will directly cause the piston to slide in the corresponding hydraulic rod, thereby causing the change in the liquid level height of the hydraulic oil, so as to more accurately measure the change in the railway track spacing.

[0061] In the above embodiment, specifically, please refer to Figures 7 - 10, one end of the first hydraulic rod 8 close to the center of the moving platform 1 is connected to a first liquid guide pipe 10, and one end of the second hydraulic rod 9 far from the center of the moving platform 1 is connected to a second liquid guide pipe 11. Two liquid storage boxes 13 for connecting the first liquid guide pipe 10 and the second liquid guide pipe 11 respectively are installed in the center of the moving platform 1. The liquid storage boxes 13 are filled with hydraulic oil. One ends of the two liquid storage boxes 13 close to each other are both connected vertically with liquid level boxes 1301 for detecting the liquid level of the hydraulic oil. Specifically, the cross-sectional area of the liquid level box 1301 along the horizontal plane is smaller than the cross-sectional area of the liquid storage box 13 along the horizontal plane, ensuring that the change in the amount of hydraulic oil in the hydraulic rod can be more accurately reflected on the liquid level box 1301 and improving the measurement accuracy of the liquid level box 1301 for judging the change in the track width.

[0062] Specifically, a camera 15 is arranged in the moving platform 1 in the direction towards the liquid level box 1301. A vertical and transparent observation groove is arranged on the side of the liquid level box 1301 facing the camera 15, and a scale is arranged on one side of the observation groove, facilitating the camera 15 to accurately photograph the liquid level difference between the two liquid level boxes 1301. The camera is used to photograph the change in the liquid level in the liquid level box 1301, and then record the change in the railway track spacing during the movement of the moving platform 1.

[0063] Furthermore, a normally closed connection valve 14 is arranged between the two liquid storage boxes 13 of the moving platform 1. The connection valve 14 is used to connect the two liquid storage boxes 13, and a button for controlling the opening of the valve core is arranged on the top. Specifically, both ends of the connection valve 14 are directly connected to two adjacent liquid storage boxes 13 through pipelines. When starting to measure the railway track spacing, the connection valve 14 can be used to level the liquid level heights in the two liquid level boxes 1301, facilitating the subsequent calculation of the railway track spacing by the camera after recording the change in the liquid level height in the liquid level box 1301.

[0064] The third embodiment:

[0065] For the railway track spacing measuring device, please refer to Figures 1 - 14 , on the basis of the second embodiment, the difference from the second embodiment is that vertical blocking bars 1303 are installed at intervals along the movement direction of the moving platform 1 in the liquid level box 1301. The blocking bars 1303 can reduce the separation of the liquid top surface in the liquid level box 1301, reduce the liquid level shaking caused by acceleration or deceleration during the movement of the moving platform 1, and the blocking bars 1303 are used to keep the liquid level in the liquid level box 1301 rising and falling smoothly during the movement of the moving platform 1. The blocking bars 1303 can effectively block the shaking of the liquid surface in the liquid level box 1301 caused by the movement of the moving platform 1, thereby improving the accuracy of the camera 15 in photographing the change in the liquid level height.

[0066] Furthermore, a mounting plate 12 is fixedly connected to the middle inside the mobile station 1, and two liquid storage boxes 13 are both fixedly connected to the mounting plate 12. The two liquid level boxes 1301 on the liquid storage box 13 are close to each other but do not touch, and are both transparent shells. The mounting plate 12 is fixedly connected in the vertical direction in the direction away from the camera 15 with a back plate 1201 that provides a background for the liquid level box 1301, thereby improving the accuracy when the camera 15 takes pictures. And a light-emitting plate 1202 is also provided on the back plate. A light homogenizing plate is covered on the surface of the light-emitting plate 1202, further improving the accuracy of the camera 15 in photographing the change in the liquid level height in the liquid level box 1301.

[0067] Specifically, a sealing plate 1302 is fixedly connected to the side of the liquid level box 1301 close to the back plate 1201. A sealant is provided at the connection between the sealing plate 1302 and the liquid level box 1301 to avoid the leakage of hydraulic oil. When manufacturing the liquid level box 1301, the blocking strip 1303 can be conveniently installed in the liquid level box 1301 through the opening on the liquid level box 1301 first, and then the sealing plate 1302 is fixedly connected. The sealing plate 1302 is also made of a transparent material.

[0068] In the above embodiment, specifically, please refer to Figures 5 - 6 and Figure 11 , two mutually parallel first resistance columns 18 and second resistance columns 19 are installed in the inspection box 16. One ends of the two sliding rods 17 located inside the inspection box 16 are respectively slidably connected to the first resistance column 18 and the second resistance column 19. Specifically, both the first resistance column 18 and the second resistance column 19 are sliding resistors, and the zero positions of the resistors are far away from each other.

[0069] Specifically, after the mobile station 1 is placed on the railway track, record the resistances of the first resistance column 18 and the second resistance column 19 at the initial position, and calculate the difference between the two at that time. By judging the change in the resistance difference between the first resistance column 18 and the second resistance column 19, it is determined whether the two sliding rods 17 slide synchronously and in the same direction.

[0070] In the above embodiment, specifically, please refer to Figure 4 and Figures 7 - 8 , a cover plate 2 is fixedly connected to the top of the mobile station 1. After opening the cover plate 2, the hydraulic oil pipeline inside the detection device can be conveniently repaired. A box cover 201 is rotatably connected to the position corresponding to the liquid storage box 13 in the middle of the cover plate 2. Before performing the railway track spacing detection work, after opening the box cover 201, the button on the connection valve 14 can be conveniently pressed, thereby quickly completing the liquid level leveling work for the two liquid level boxes 1301.

[0071] When the present invention specifically performs the track spacing measurement work:

[0072] Place the mobile station 1 on the railway track, so that the first roller 402 and the second roller 501 at both ends of the mobile station 1 are in contact with the outer side and the inner side of the two rails 21 on the railway track respectively, measure the railway track spacing at the initial position of the mobile station 1, and the mobile station 1 is pushed to move uniformly on the railway track. Based on the railway track spacing at the initial position, by calculating the change in the liquid level height in the liquid level box 1301, the spacing of each position of the railway track can be judged, and thus the relatively accurate measurement of the railway track spacing can be conveniently realized;

[0073] Specifically, when the spacing of the railway track becomes wider, the first telescopic arm 4 is further compressed by the thrust of the rail 21 and moves in the direction away from the center of the mobile station 1 by the spring corresponding to the pressure plate 401, and the second telescopic arm 5 also moves in the direction away from the center of the mobile station 1 by the elastic force of its corresponding spring. The hydraulic oil in the first hydraulic rod 8 moves in the direction away from the oil outlet due to the piston, generating negative pressure to suck the hydraulic oil in the corresponding liquid storage box 13 into the first hydraulic rod 8, causing the liquid level height in the liquid level box 1301 corresponding to the first liquid guide pipe 10 to drop. On the contrary, the hydraulic oil in the second hydraulic rod 9 moves in the direction towards the oil outlet due to the piston, and the pressure in the second hydraulic rod 9 increases to push the hydraulic oil into the liquid storage box 13 corresponding to the second liquid guide pipe 11, causing the liquid level height in the liquid level box 1301 above the liquid storage box 13 to rise. The camera 15 records the liquid level difference between the two liquid level boxes 1301 at this time, and the value of the widened railway track spacing can be obtained relatively accurately through simple calculation. The camera 15 takes pictures at a set frequency, and when the mobile station 1 moves uniformly, the spacing of the railway track can be conveniently and relatively accurately measured along the railway track line;

[0074] When the mobile station 1 moves to a curved section or other positions of the railway track, the spacing of the track does not change but the whole track shifts to one side. The first telescopic arms 4 on both sides of the mobile station slide synchronously and in the same direction, and the two first liquid guide pipes 10 respectively inject liquid into and suck liquid from the liquid storage box 13. The same is true for the second telescopic arm 5. At this time, the liquid level height in the liquid level box 1301 will not change, further improving the accuracy of the track spacing measurement and effectively avoiding the detection error caused by the telescopic arms sliding in the same direction and at the same time. In contrast, when the spacing of the railway track changes, the two first telescopic arms 4 will slide in the opposite direction at the same time, and the two second telescopic arms 5 will also slide in the opposite direction at the same time;

[0075] Further, in order to avoid the influence of possible welds on the side of the railway track 21 along the line or debris attached to the side of the railway track on the accuracy of the measured data, the resistance difference between the first resistance column 18 and the second resistance column 19 in the inspection box 16 is recorded at the initial position of the movement of the mobile station 1. During the movement of the mobile station 1, if the first telescopic arm 4 and the second telescopic arm 5 synchronously and in the same direction expand and contract due to the change in the railway track spacing, the difference between the first resistance column 18 and the second resistance column 19 will not change. On the contrary, if the first roller 402 or the second roller 501 presses on a protrusion and causes the first telescopic arm 4 or the second telescopic arm 5 to slide independently, the resistance difference between the first resistance column 18 and the second resistance column 19 will change. In this state, the measured railway track spacing needs to be re-measured or cannot be used as accurate detection data, further ensuring the accuracy of the railway track spacing detection data.

[0076] Although the embodiments of the present invention have been shown and described, the specific embodiments are only explanations of the present invention and not limitations thereof. The specific features, structures, materials or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. After reading this specification, those skilled in the art can, without departing from the principles and purposes of the present invention, make modifications, substitutions and variations that do not contribute creatively to the embodiments as needed, but as long as they are within the scope of the claims of the present invention, they are protected by the patent law.

Claims

1. A railway track gauge measuring device, characterized in that, Comprising: A mobile station (1), which is horizontally placed between two rails of a railway track and can slide along the railway track. At both ends of the mobile station (1), a first telescopic arm (4) and a second telescopic arm (5) are slidably arranged. A thrust assembly for respectively keeping the first telescopic arm (4) and the second telescopic arm (5) in contact with the inner and outer sides of the rail is installed in the mobile station (1). A detection assembly for measuring the sliding amounts of the first telescopic arm (4) and the second telescopic arm (5) is installed in the mobile station (1). An inspection box (16), which is fixedly installed at both ends of the mobile station (1) and is respectively connected with sliding rods (17) towards the first telescopic arm (4) and the second telescopic arm (5). An inspection assembly for judging whether the two sliding rods (17) slide synchronously and in the same direction is installed in the inspection box (16). The first telescopic arm (4) and the second telescopic arm (5) are arranged in a height-direction offset in the mobile station (1), and a first roller (402) for contacting the outer side of the rail and a second roller (501) for contacting the inner side of the rail are respectively rotatably connected to the bottom ends. A pressure plate (401) is fixedly connected to one end of the first telescopic arm (4) away from the first roller (402). A spring compressed towards the end of the mobile station (1) is arranged between the pressure plate (401) and the inner wall of the mobile station (1). A spring compressed towards the center of the mobile station (1) is arranged between one end of the second telescopic arm (5) away from the second roller (501) and the inner wall of the mobile station (1). Connecting rods (6) are fixedly connected in the directions of the pressure plate (401) and the second telescopic arm (5) towards the center of the mobile station (1). A first hydraulic rod (8) and a second hydraulic rod (9) coaxial with the respective connecting rods (6) at different heights are installed in the mobile station (1). The connecting rod (6) connected to the pressure plate (401) penetrates into the first hydraulic rod (8) and is provided with a piston. The connecting rod (6) connected to the second telescopic arm (5) penetrates into the second hydraulic rod (9) and is provided with a piston. One end of the first hydraulic rod (8) close to the center direction of the mobile station (1) is communicated with a first liquid guide pipe (10). One end of the second hydraulic rod (9) away from the center direction of the mobile station (1) is communicated with a second liquid guide pipe (11). Two liquid storage boxes (13) for respectively communicating the first liquid guide pipe (10) and the second liquid guide pipe (11) are installed at the center in the mobile station (1). Liquid level boxes (1301) for detecting the liquid level of hydraulic oil are vertically communicated at one end of the two liquid storage boxes (13) close to each other. A camera (15) is arranged in the mobile station (1) towards the direction of the liquid level box (1301).

2. The railway track gauge measuring device according to claim 1, characterized in that: Both ends of the mobile station (1) are fixedly connected with two support arms (3) respectively. An installation groove (301) is arranged at a position of the support arm (3) close to the railway track. A slide bar (302) is arranged in the installation groove (301) along the width direction of the railway track. A tapered wheel (303) is slidably connected to the slide bar (302) along the axis. The tapered surface of the tapered wheel (303) faces the railway track and is used to contact the inner top surface of the railway track. A spring is arranged between the tapered wheel (303) in the direction away from the tapered surface and the inner wall of the installation groove (301).

3. The railway track spacing measuring device according to claim 1, wherein: A normally closed communication valve (14) is arranged between two liquid storage boxes (13) of the mobile station (1). The communication valve (14) is used to communicate the two liquid storage boxes (13) and is provided with a button for controlling the opening of the valve core at the top.

4. The railway track spacing measuring device according to claim 1, characterized in that: Vertical blocking strips (1303) are installed at intervals along the moving direction of the mobile station (1) in the liquid level box (1301). The blocking strips (1303) are used to keep the liquid level in the liquid level box (1301) rising and falling smoothly during the movement of the mobile station (1).

5. The railway track spacing measuring device according to claim 1, characterized in that: Two mutually parallel first resistance columns (18) and second resistance columns (19) are installed in the inspection box (16). One ends of the two sliding rods (17) located in the inspection box (16) are respectively slidably connected to the first resistance column (18) and the second resistance column (19).

6. The railway track gauge measuring device according to claim 3, characterized in that: A cover plate (2) is fixedly connected to the top end of the mobile station (1). A box cover (201) is rotatably connected to a position corresponding to the liquid storage box (13) in the middle of the cover plate (2).

7. The railway track gauge measuring device according to claim 1, characterized in that: An interface for connecting a pushing component is arranged in the middle of the mobile station (1).

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