A track spacing measuring device for rail transportation

Abstract

The present application discloses a track spacing measuring device for rail transit, belonging to the field of track measurement technology, comprising a reset center coupler, a fixed rod and a sliding rod, wherein the fixed rod is fixedly connected to one end of the reset center coupler, the sliding rod extends into the reset center coupler and is slidably connected thereto, the fixed rod and the sliding rod ends are both fixedly connected with a track contact wheel group, wherein a laser rangefinder is installed on the track contact wheel group connected to the sliding rod, a reflector is installed on the track contact wheel group connected to the fixed rod, and a movable push handle is fixedly connected to the middle of the reset center coupler; during measurement, the track contact wheel groups on both sides of the present application are clamped on the track and roll along the track, at which time the laser rangefinder and the reflector work in combination to measure the spacing between the two, that is, the track spacing, and when the track spacing changes, the sliding rod can change the spacing of the track contact wheel groups on both sides by telescoping, and this measurement method is simple to operate and can measure continuously.

Description

Technical Field

[0001] The present application relates to the field of track measurement technology, and in particular to a track spacing measuring device for rail transportation. Background Art

[0002] The track gauge is the distance between the two rails (rails) of a railway track (based on the inner distance of the rails). There are many different track gauges in the world, including standard gauge, wide gauge, and narrow gauge. Rail transit refers to a type of transportation vehicle or transportation system in which operating vehicles need to travel on specific tracks. The most common rail transit is a railway system composed of trains and railways. Therefore, track gauge is a very important parameter in rail transit. In rail transit transportation, track quality inspection is essential. Staff need to conduct routine inspections of the tracks every day to ensure the safety of the tracks. At the beginning of the construction of the tracks, in order to avoid accidents, it is necessary to ensure that the track spacing is always consistent to prevent derailment.

[0003] The existing regular detection measures are usually for operators to measure with a measuring ruler, but this method is very cumbersome and has poor continuity. Therefore, a track spacing measuring device has also appeared, but the track spacing measuring device is usually unable to automatically adjust the measuring range of the measuring device according to the track spacing when in use, which is inconvenient to use. Therefore, in view of the above problems, a track spacing measuring device for rail transit is proposed. Utility Model Content

[0004] In view of the shortcomings of the prior art, the present application provides a track spacing measuring device for rail transit, which overcomes the shortcomings of the prior art and aims to solve the problem that the measuring device is usually unable to automatically adjust the measuring range according to the track spacing during use, resulting in inconvenience in use.

[0005] To achieve the above objectives, this application provides the following technical solutions:

[0006] The cam is connected to the sliding member by a threaded rod and the sliding member is connected to the sliding member by a threaded rod. The cam is connected to the sliding member by a threaded rod and the sliding member is connected to the sliding member by a threaded rod. The cam is connected to the sliding member by a threaded rod and the sliding member is connected to the sliding member by a threaded rod.

[0007] By adopting the above technical solution, during measurement, the track contact wheel groups on both sides are clamped on the track and roll along the track. At this time, the laser rangefinder and the reflector work in combination to measure the distance between the two, that is, the track spacing. When the track spacing increases, the reset spring pushes the sliding rod to extend outward, changing the spacing between the track contact wheel groups on both sides. At this time, the distance between the laser rangefinder and the reflector also changes synchronously. When the track spacing decreases, the track squeezes the track contact wheel group inward, causing the sliding rod to retract, changing the spacing between the track contact wheel groups on both sides. At this time, the distance between the laser rangefinder and the reflector also changes synchronously. This measurement method is simple to operate and can measure continuously.

[0008] As a preferred technical solution of the present application, when the sliding collar is in close contact with the front limiting sleeve, a portion of the inner end portion of the sliding rod is still located in the rear guide sleeve.

[0009] By adopting the above technical solution, the rear guide sleeve can always restrain the inner end of the sliding rod, so that the position of the central axis of the sliding rod remains unchanged during the extension and retraction process.

[0010] As a preferred technical solution of the present application, the track contact wheel group includes an L-shaped connecting plate, the outer side surface of the L-shaped connecting plate is rotatably connected to the roller body via a rotating shaft, and an anti-slip end piece is fixedly provided on the end face of the roller body close to the L-shaped connecting plate, and a curved groove is provided at the edge of the outer side surface of the anti-slip end piece.

[0011] By adopting the above technical solution, the L-shaped connecting plate can be used to connect with the external structure to install and carry the measuring instrument, and the anti-slip end piece can prevent the roller body from falling off the track by contacting the inner side of the track. In addition, the smooth surface of the curved groove can effectively reduce the friction between the anti-slip end piece and the track.

[0012] As a preferred technical solution of the present application, two symmetrically arranged guide rods are fixedly connected to the L-shaped connecting plate of the track contact wheel group connected to the fixed rod, and the other end of the guide rod passes through the L-shaped connecting plate of the track contact wheel group connected to the sliding rod, and a guide cylinder is fixedly arranged on the L-shaped connecting plate connected to the sliding rod, and the guide cylinder is slidably connected to the guide rod. In addition, support plates are fixedly arranged at both ends of the outer side of the cylindrical shell, and the top of the support plate is fixedly connected to the guide rod.

[0013] By adopting the above technical solution, the track contact wheel group connected to the sliding rod can slide along the guide rod in and out while moving with the sliding rod, thereby constraining the track contact wheel group connected to the sliding rod and preventing it from deflecting during rolling and causing the device to have difficulty in normal operation.

[0014] As a preferred technical solution of the present application, the mouth cover of the cylindrical shell is provided with a threaded ash blocking cover, and the ash blocking cover includes a cover body shell threadedly connected to the mouth of the cylindrical shell, and an ash blocking layer is fixedly arranged in the cover body shell, and the ash blocking layer is a ring structure made of sponge material and its inner ring is in close contact with the outer wall of the sliding rod.

[0015] By adopting the above technical solution, the dust blocking layer can block the gap between the sliding rod and the cover shell without affecting the sliding of the sliding rod, and can effectively prevent dust or foreign matter from entering the cylindrical shell.

[0016] As a preferred technical solution of the present application, the movable push handle includes a connecting block fixedly arranged in the middle of the cylindrical shell, the top of the connecting block is rotatably connected to a hinge seat, a curved rod is fixedly connected to the hinge seat, and the end of the curved rod is fixedly connected to a handle.

[0017] By adopting the above technical solution, it is convenient for the measurement personnel to push the entire device from behind to move along the track for measurement.

[0018] The beneficial effects of the present application are as follows: during measurement, the track contact wheel groups on both sides are clamped on the track and roll along the track, and at this time, the laser rangefinder and the reflector plate work in combination to measure the distance between the two, that is, the track spacing; when the track spacing increases, the reset spring pushes the sliding rod to extend outward, and changes the spacing between the track contact wheel groups on both sides; at this time, the distance between the laser rangefinder and the reflector plate also changes synchronously; and when the track spacing decreases, the track squeezes the track contact wheel group inward, causing the sliding rod to retract, and changes the spacing between the track contact wheel groups on both sides; at this time, the distance between the laser rangefinder and the reflector plate also changes synchronously; this measurement method is simple to operate and can perform continuous measurement. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the overall structure of this application;

[0020] Figure 2 This is a schematic diagram of the reset coupler structure of the present application;

[0021] Figure 3 This is a schematic diagram of the activity push handle structure of this application;

[0022] Figure 4 This is a schematic diagram of the track contact wheel set structure of the present application;

[0023] Figure 5 for Figure 2 Magnified view at A in the middle.

[0024] In the figure: 1. reset center coupler; 11. cylindrical shell; 12. rear guide sleeve; 13. front limit sleeve; 14. reset spring; 151. cover shell; 152. dust blocking layer; 2. fixed rod; 3. sliding rod; 31. sliding collar; 4. track contact wheel group; 41. L-shaped connecting plate; 42. rotating shaft; 43. roller body; 44. anti-slip end piece; 45. curved groove; 5. laser rangefinder; 6. reflector; 7. movable push handle; 71. connecting block; 72. hinge seat; 73. bent rod; 74. handle; 8. guide rod; 81. support plate; 82. guide cylinder. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0026] Reference Figure 1 A track spacing measuring device for rail transit includes a reset center coupler 1, a fixed rod 2 and a sliding rod 3, the fixed rod 2 is fixedly connected to one end of the reset center coupler 1, the sliding rod 3 extends into the reset center coupler 1 and is slidably connected thereto, the outer ends of the fixed rod 2 and the sliding rod 3 are fixedly connected with a track contact wheel group 4, wherein a laser rangefinder 5 is fixedly installed on the track contact wheel group 4 connected to the sliding rod 3, and a reflector 6 is fixedly installed on the track contact wheel group 4 connected to the fixed rod 2, and an active push handle 7 is fixedly connected to the middle part of the reset center coupler 1. During measurement, the active push handle 7 is used to push the overall structure to move, and the laser rangefinder 5 and the reflector 6 work in combination to measure the distance between the two, that is, the distance between the tracks. This measurement method is simple to operate and can perform continuous measurement.

[0027] Reference Figure 2The reset coupler 1 includes a cylindrical shell 11, a rear guide sleeve 12 is fixedly arranged at one end of the cylindrical shell 11 near the fixed rod 2, and a front limit sleeve 13 is fixedly arranged at the other end of the cylindrical shell 11. The sliding rod 3 extends into the cylindrical shell 11, and a sliding ring 31 is arranged outside the rod body fixed sleeve. The sliding ring 31 is located between the rear guide sleeve 12 and the front limit sleeve 13. A reset spring 14 is arranged between the rear guide sleeve 12 and the sliding ring 31. By adopting the above technical solution, the track contact wheel groups 4 on both sides are clamped on the track and roll along the track during measurement. At this time, the laser rangefinder 5 and the reflector 6 work in combination to measure the distance between the two, that is, the distance between the tracks. When the track distance increases, the reset spring 14 pushes the sliding rod 3 to extend outward, changing the distance between the track contact wheel groups 4 on both sides. At this time, the distance between the laser rangefinder 5 and the reflector 6 also changes synchronously. When the track distance decreases, the track squeezes the track contact wheel group 4 inward, causing the sliding rod 3 to retract, changing the distance between the track contact wheel groups 4 on both sides. At this time, the distance between the laser rangefinder 5 and the reflector 6 also changes synchronously. This measurement method is simple to operate and can perform continuous measurement.

[0028] In particular, when the sliding ring 31 is in close contact with the front limit sleeve 13, part of the inner end of the sliding rod 3 is still located in the rear guide sleeve 12. By adopting the above technical solution, the rear guide sleeve 12 can always restrain the inner end of the sliding rod 3, so that the position of the central axis of the sliding rod 3 remains unchanged during the extension and retraction process.

[0029] Reference Figure 4 The track contact wheel set 4 includes an L-shaped connecting plate 41, and the outer side surface of the L-shaped connecting plate 41 is rotatably connected to a roller body 43 through a rotating shaft 42. An anti-slip end piece 44 is fixedly arranged on the end surface of the roller body 43 close to the L-shaped connecting plate 41, and a curved groove 45 is provided at the edge of the outer side surface of the anti-slip end piece 44. By adopting the above technical scheme, the L-shaped connecting plate 41 can be used to connect with the external structure to install and carry measuring instruments, and the anti-slip end piece 44 can prevent the roller body 43 from falling off the track by contacting the inner side of the track. In addition, the smooth curved surface of the curved groove 45 can effectively reduce the friction between the anti-slip end piece 44 and the track.

[0030] Reference Figure 1Two symmetrically arranged guide rods 8 are fixedly connected to the L-shaped connecting plate 41 of the track contact wheel group 4 connected to the fixed rod 2, and the other end of the guide rod 8 passes through the L-shaped connecting plate 41 of the track contact wheel group 4 connected to the sliding rod 3, and a guide cylinder 82 is fixedly provided on the L-shaped connecting plate 41 connected to the sliding rod 3, and the guide cylinder 82 is slidably connected to the guide rod 8. In addition, support plates 81 are fixedly provided at both ends of the outer side of the cylindrical shell 11, and the top of the support plate 81 is fixedly connected to the guide rod 8. By adopting the above technical scheme, the track contact wheel group 4 connected to the sliding rod 3 can slide in and out along the guide rod 8 while moving in and out with the sliding rod 3, thereby constraining the track contact wheel group 4 connected to the sliding rod 3 to prevent it from deflecting during the rolling process, which makes it difficult for the device to work normally.

[0031] Reference Figure 5 The mouth cover of the cylindrical shell 11 is provided with a dust blocking cover which is threadedly connected. The dust blocking cover includes a cover body shell 151 which is threadedly connected to the mouth of the cylindrical shell 11. A dust blocking layer 152 is fixedly arranged in the cover body shell 151. The dust blocking layer 152 is a ring structure made of sponge material and its inner circle is in close contact with the outer wall of the sliding rod 3. By adopting the above technical scheme, the dust blocking layer 152 can block the gap between the sliding rod 3 and the cover body shell 151 without affecting the sliding of the sliding rod 3, thereby effectively preventing dust or foreign matter from entering the cylindrical shell 11.

[0032] Reference Figure 3 The movable push handle 7 includes a connecting block 71 fixedly arranged in the middle of the cylindrical shell 11, the top of the connecting block 71 is rotatably connected to a hinge seat 72, a bent rod 73 is fixedly connected to the hinge seat 72, and a handle 74 is fixedly connected to the end of the bent rod 73. By adopting the above technical solution, it is convenient for the measurement personnel to push the entire device from the rear to move along the track for measurement.

[0033] Working principle: During measurement, the track contact wheel groups 4 on both sides are clamped on the track and roll along the track. At this time, the laser rangefinder 5 and the reflector plate 6 work in combination to measure the distance between the two, that is, the distance between the tracks, and in this process, the reset spring 14 will push the sliding rod 3 to extend outward, so that the anti-slip end piece 44 of the track contact wheel group 4 connected thereto is in close contact with the track, thereby making the track contact wheel groups 4 on both sides able to be in close contact with the track, which can improve the measurement accuracy.

[0034] When the track spacing increases, the return spring 14 pushes the sliding rod 3 to extend outward, changing the spacing between the track contact wheel groups 4 on both sides. At this time, the spacing between the laser rangefinder 5 and the reflector 6 also changes synchronously. When the track spacing decreases, the track squeezes the track contact wheel group 4 inward, causing the sliding rod 3 to retract, changing the spacing between the track contact wheel groups 4 on both sides. At this time, the spacing between the laser rangefinder 5 and the reflector 6 also changes synchronously. This measurement method is simple to operate and can perform continuous measurement.

[0035] The above description is only the preferred embodiment of the present application and is not intended to limit the present application. Although the present application is described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A track spacing measuring device for rail transit, comprising a reset center coupler (1), a fixed rod (2) and a sliding rod (3), characterized in that: A fixed rod (2) is fixedly connected to one end of the reset center coupler (1), a sliding rod (3) extends into the reset center coupler (1) and is slidably connected thereto, outer ends of the fixed rod (2) and the sliding rod (3) are fixedly connected to a track contact wheel set (4), wherein a laser rangefinder (5) is fixedly mounted on the track contact wheel set (4) connected to the sliding rod (3), a reflector (6) is fixedly mounted on the track contact wheel set (4) connected to the fixed rod (2), a movable push handle (7) is fixedly connected to the middle of the reset center coupler (1), and the The reset coupler (1) comprises a cylindrical outer shell (11), wherein a rear guide sleeve (12) is fixedly arranged at one end of the cylindrical outer shell (11) close to the fixed rod (2), and a front limit sleeve (13) is fixedly arranged at the other end of the cylindrical outer shell (11), wherein the sliding rod (3) extends into the rod body fixed sleeve of the cylindrical outer shell (11) and a sliding ring (31) is arranged outside the rod body fixed sleeve, and the sliding ring (31) is located between the rear guide sleeve (12) and the front limit sleeve (13), and a reset spring (14) is arranged between the rear guide sleeve (12) and the sliding ring (31).

2. A track spacing measuring device for rail transit according to claim 1, characterized in that: When the sliding collar (31) is in close contact with the front limiting sleeve (13), a portion of the inner end of the sliding rod (3) is still located in the rear guide sleeve (12).

3. A track spacing measuring device for rail transit according to claim 1, characterized in that: The track contact wheel set (4) comprises an L-shaped connecting plate (41), the outer side surface of the L-shaped connecting plate (41) being rotatably connected to a roller body (43) via a rotating shaft (42), an anti-slip end piece (44) being fixedly provided on an end surface of the roller body (43) close to the L-shaped connecting plate (41), and a curved groove (45) being provided at the outer side edge of the anti-slip end piece (44).

4. A track spacing measuring device for rail transit according to claim 3, characterized in that: Two symmetrically arranged guide rods (8) are fixedly connected to an L-shaped connecting plate (41) of a track contact wheel group (4) connected to a fixed rod (2), and the other end of the guide rod (8) passes through the L-shaped connecting plate (41) of a track contact wheel group (4) connected to a sliding rod (3). A guide cylinder (82) is fixedly arranged on the L-shaped connecting plate (41) connected to the sliding rod (3), and the guide cylinder (82) is slidably connected to the guide rod (8). In addition, support plates (81) are fixedly arranged at both ends of the outer side of the cylindrical housing (11), and the top of the support plate (81) is fixedly connected to the guide rod (8).

5. The track spacing measuring device for rail transit according to claim 1, characterized in that: The mouth cover of the cylindrical outer shell (11) is provided with a threaded ash blocking cover, the ash blocking cover comprises a cover body shell (151) threadedly connected to the mouth of the cylindrical outer shell (11), an ash blocking layer (152) is fixedly arranged in the cover body shell (151), and the ash blocking layer (152) is a ring structure made of sponge material, and its inner ring is in close contact with the outer wall of the sliding rod (3).

6. The track spacing measuring device for rail transit according to claim 1, characterized in that: The movable push handle (7) comprises a connecting block (71) fixedly arranged in the middle of the cylindrical shell (11); the top of the connecting block (71) is rotatably connected to a hinge seat (72); a curved rod (73) is fixedly connected to the hinge seat (72); and the end of the curved rod (73) is fixedly connected to a handle (74).

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