Subway track vibration monitor

Abstract

The utility model relates to the technical field of metro track monitoring, in particular to a metro track vibration monitor which comprises a vibration sensor, a first clamping plate and a second clamping plate, the first clamping plate and the second clamping plate are arranged on the two sides of a track in a clamping mode, a fixing plate is installed at one end of the second clamping plate through a hinge piece, and the outer side face of the fixing plate protrudes to form a thickening portion. A mounting groove matched with the vibration sensor is formed in the inner side face of the fixing plate, one end of the mounting groove extends into the thickening part, the vibration sensor is inserted into the mounting groove, and a plurality of positioning blocks for positioning the fixing plate are arranged between the fixing plate and the second clamping plate. The device is simple in structure, the vibration sensor can be rapidly installed on the rail through the first clamping plate and the second clamping plate which are close to each other inwards, the vibration sensor is tightly attached to the rail, after the positioning block is moved outwards, the fixing plate can be opened outwards, and follow-up disassembly and maintenance of the vibration sensor are facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of subway track monitoring, in particular to a subway track vibration monitor. Background Art

[0002] At present, my country is in a period of rapid development, and the scale of cities will further expand. According to the "National New Urbanization Plan 2014-2020", by 2020, the proportion of public transportation in urban travel will reach 60%, the number of cities with new urban rail trains will double, and the mileage of urban rail lines under construction and new construction will increase by about one. Urban rail transit is developing towards high speed, high density, complex technical system composition, and high business system linkage, which puts forward higher and higher requirements for vehicle driving control and track status detection.

[0003] At present, track status detection is increasingly using online dynamic detection systems. The online dynamic detection system method is to install vibration sensors on the track. The vibration acceleration sensor collects the vibration acceleration signal, and the running status of the track can be detected by analyzing the vibration signal of the wheel impacting the rail. At present, the fixtures and protective devices used to install sensors on the track mostly use some simple fixing devices. These devices are more troublesome to install and disassemble, which affects the subsequent maintenance and replacement. Summary of the invention

[0004] The technical problem to be solved by the utility model is to provide a subway track vibration monitor, which can directly complete the installation of a vibration sensor through a first clamping plate and a second clamping plate clamped inwardly, so as to solve the problems raised in the above background technology.

[0005] The utility model is realized through the following technical scheme: a subway track vibration monitor, comprising a vibration sensor and a first clamping plate and a second clamping plate clamped on both sides of the rail, a locking mechanism driving the first clamping plate and the second clamping plate to move inward is installed between the first clamping plate and the second clamping plate, a fixing plate is installed at one end of the second clamping plate through a hinge, a thickened portion is protruded on the outer surface of the fixing plate, a mounting groove matching the vibration sensor is formed on the inner side surface of the fixing plate, one end of the mounting groove extends to the inside of the thickened portion, the vibration sensor is inserted into the mounting groove, the detection end face of the vibration sensor is arranged to abut against the waist of the rail, and a plurality of positioning blocks for positioning the fixing plate are arranged between the fixing plate and the second clamping plate.

[0006] As a preferred technical solution, the positioning blocks are all arranged in an "L"-shaped structure, one end of the positioning blocks are arranged to abut against the outer side surface of the fixed plate, and the other end of the positioning blocks are arranged to abut against the top surface of the second clamping plate, and positioning grooves are provided on both sides of the second clamping plate, and positioning columns are provided in the positioning grooves, one end of the positioning columns extends to the outside, and connecting plates are installed, one end of the connecting plates is fixedly connected to the positioning blocks, and the other end of the positioning columns is installed with compression springs, and the other end of the compression springs is installed on the inner wall surface of the positioning grooves, and grip rods are installed on the outer side surfaces of the connecting plates.

[0007] As a preferred technical solution, the locking mechanism includes a sealed bearing, a rotating block and a screw. An adjustment groove is provided on the bottom surface of the second clamping plate, an adjustment portion is protruded on the end surface of the first clamping plate, the adjustment portion is inserted into the adjustment groove, a screw hole is provided on the end surface of the adjustment portion, and an installation hole is provided on the outer side surface of the second clamping plate opposite to the screw hole. The sealed bearing is installed in the installation hole, the screw is installed in the inner ring of the sealed bearing, one end of the screw is threadedly connected to the screw hole, and the other end is fixedly connected to the rotating block.

[0008] As a preferred technical solution, slide grooves are provided on both sides of the adjustment groove, slide bars are installed on both sides of the adjustment part, the slide bars are slidably arranged in the slide grooves, and the rotating blocks are arranged in a hexagonal structure.

[0009] As a preferred technical solution, the cross-sections of the positioning groove and the positioning column are both arranged in a rectangular structure.

[0010] As a preferred technical solution, the first clamping plate and the second clamping plate are both arranged in a "J"-shaped structure, and the first clamping plate and the second clamping plate are both arranged on both sides of the bottom of the rail.

[0011] As a preferred technical solution, a wiring hole is provided on the outer side surface of the thickened portion, and the wires on the vibration sensor are arranged through the wiring hole.

[0012] As a preferred technical solution, an annular groove is provided on the inner side surface of the fixing plate outside the mounting groove, and a sealing ring is installed in the annular groove.

[0013] The beneficial effects of the utility model are as follows: the utility model has a simple structure, and the vibration sensor can be quickly installed on the rail through the first clamping plate and the second clamping plate that are moved inward, and the vibration sensor is tightly fitted to the rail to ensure the quality of monitoring, and after the positioning block is moved outward, the fixing plate can be opened outward, which is convenient for the subsequent disassembly and maintenance of the vibration sensor. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 It is a side view of the utility model;

[0017] Figure 3 It is a bottom view of the utility model;

[0018] Figure 4 It is a schematic diagram of the structure of the utility model after the rails are removed.

[0019] Among them, 1. rail; 2. second clamping plate; 3. fixed plate; 4. thickened part; 5. positioning block; 6. connecting plate; 7. gripping rod; 8. rotating block; 9. first clamping plate; 10. adjusting groove; 11. adjusting part; 12. sliding bar; 13. screw rod; 14. vibration sensor; 15. annular groove; 16. positioning column. DETAILED DESCRIPTION

[0020] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0021] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, a subway track vibration monitor of the utility model comprises a vibration sensor 14 and a first clamping plate 9 and a second clamping plate 2 clamped on both sides of the rail 1, a locking mechanism driving the first clamping plate 9 and the second clamping plate 2 to move inward is installed between the first clamping plate 9 and the second clamping plate 2, a fixing plate 3 is installed at one end of the second clamping plate 2 through a hinge, a thickened portion 4 is protruded on the outer surface of the fixing plate 3, a mounting groove matching the vibration sensor 14 is formed on the inner side surface of the fixing plate 3, one end of the mounting groove extends to the inside of the thickened portion 4, the vibration sensor 14 is inserted into the mounting groove, the detection end face of the vibration sensor 14 is arranged to contact the waist of the rail 1, and a plurality of positioning blocks 5 for positioning the fixing plate 3 are arranged between the fixing plate 3 and the second clamping plate 2.

[0022] In this embodiment, the positioning blocks 5 are all arranged in an "L"-shaped structure, one end of the positioning blocks 5 is arranged to abut against the outer side surface of the fixing plate 3, and the other end of the positioning blocks 5 is arranged to abut against the top surface of the second clamping plate 2. Positioning grooves are provided on both sides of the second clamping plate 2, and positioning columns 16 are provided in the positioning grooves. One end of the positioning columns 16 extends to the outside and is installed with a connecting plate 6. One end of the connecting plate 6 is fixedly connected to the positioning block 5, and the other end of the positioning column 16 is installed with a compression spring, and the other end of the compression spring is installed on the inner wall surface of the positioning groove, and a grip rod 7 is installed on the outer surface of the connecting plate 6.

[0023] In this embodiment, the locking mechanism includes a sealed bearing, a rotating block 8 and a screw 13. An adjustment groove 10 is provided on the bottom surface of the second clamping plate 2. An adjustment portion 11 is protruded on the end surface of the first clamping plate 9. The adjustment portion 11 is inserted into the adjustment groove 10. A screw hole is provided on the end surface of the adjustment portion 11. An installation hole is provided on the outer side surface of the second clamping plate 2 opposite to the screw hole. The sealed bearing is installed in the installation hole. The screw 13 is installed in the inner ring of the sealed bearing. One end of the screw 13 is threadedly connected to the screw hole, and the other end is fixedly connected to the rotating block 8.

[0024] In this embodiment, slide grooves are provided on both sides of the adjustment groove 10, slide bars 12 are installed on both sides of the adjustment portion 11, the slide bars 12 are slidably arranged in the slide grooves, and the rotating blocks 8 are arranged in a hexagonal structure.

[0025] In this embodiment, the cross-sections of the positioning groove and the positioning column 16 are both arranged in a rectangular structure, so that the positioning block can only move along the positioning groove, thereby avoiding rotation and deviation of the positioning block and increasing stability.

[0026] In this embodiment, the first clamping plate 9 and the second clamping plate 2 are both arranged in a "J"-shaped structure, and the first clamping plate 9 and the second clamping plate 2 are both arranged on both sides of the bottom of the rail 1, so that the first clamping plate and the second clamping plate can be hooked on both sides of the rail.

[0027] In this embodiment, a wiring hole is provided on the outer surface of the thickened portion 4, and the wires on the vibration sensor 14 are arranged through the wiring hole; wherein, a rubber sleeve can be installed in the wiring hole to increase the sealing between the wires and the wiring hole.

[0028] In this embodiment, the inner side surface of the fixing plate 3 is located outside the mounting groove and is provided with an annular groove 15, in which a sealing ring is installed. The sealing ring increases the sealing between the fixing plate and the rail, thereby preventing external rainwater from contacting the vibration sensor.

[0029] When in use, first pass the wire through the wiring hole, and then put the vibration sensor into the installation groove, then put the first clamping plate and the second clamping plate on both sides of the bottom of the rail, and turn the rotating block by a wrench. The rotation of the rotating block drives the screw rod, and the rotation of the screw rod drives the adjustment part, so that the first clamping plate and the second clamping plate move inward along the slide groove and the slide bar until they are firmly clamped and fixed on the rail, so that the vibration sensor can be firmly against the rail to ensure the quality of monitoring;

[0030] Among them, when the vibration sensor needs to be replaced, the connecting plate is pulled outward by the grip rod, and the movement of the connecting plate drives the positioning block to move outward along the positioning groove. After the positioning block is moved away from the outer side of the fixed plate, the fixed plate can be opened outward with the hinge as the center, so that the vibration sensor can be directly taken out, which greatly facilitates the efficiency of disassembly and replacement. After the replacement is completed, the fixed plate can be lifted again to make the monitoring end of the vibration sensor contact the rail. After the positioning block moves to its original position, the fixed plate can be positioned to avoid the fixed plate from opening outward.

[0031] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any changes or substitutions that are not conceived through creative work should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope defined in the claims.

Claims

1. A subway track vibration monitor, characterized in that: The invention comprises a vibration sensor (14) and a first clamping plate (9) and a second clamping plate (2) which are clamped on both sides of a rail (1); a locking mechanism is installed between the first clamping plate (9) and the second clamping plate (2) to drive the first clamping plate (9) and the second clamping plate (2) to move inward; a fixing plate (3) is installed at one end of the second clamping plate (2) through a hinge; a thickened portion (4) is protruded on the outer surface of the fixing plate (3); a mounting groove matching the vibration sensor (14) is formed on the inner side surface of the fixing plate (3); one end of the mounting groove extends to the inside of the thickened portion (4); the vibration sensor (14) is inserted into the mounting groove; the detection end face of the vibration sensor (14) is arranged to contact the waist of the rail (1); and a plurality of positioning blocks (5) for positioning the fixing plate (3) are arranged between the fixing plate (3) and the second clamping plate (2).

2. The subway track vibration monitor according to claim 1, characterized in that: The positioning blocks (5) are all arranged in an "L"-shaped structure. One end of the positioning blocks (5) is arranged to abut against the outer side surface of the fixing plate (3), and the other end of the positioning blocks (5) is arranged to abut against the top surface of the second clamping plate (2). Positioning grooves are arranged on both sides of the second clamping plate (2). Positioning columns (16) are arranged in the positioning grooves. One end of the positioning columns (16) extends to the outside and is installed with a connecting plate (6). One end of the connecting plate (6) is fixedly connected to the positioning blocks (5). The other end of the positioning columns (16) is installed with a compression spring. The other end of the compression spring is installed on the inner wall surface of the positioning groove. A gripping rod (7) is installed on the outer side surface of the connecting plate (6).

3. The subway track vibration monitor according to claim 1, characterized in that: The locking mechanism comprises a sealed bearing, a rotating block (8) and a screw (13); an adjusting groove (10) is provided on the bottom surface of the second clamping plate (2); an adjusting portion (11) is protruded on the end surface of the first clamping plate (9); the adjusting portion (11) is inserted into the adjusting groove (10); a screw hole is provided on the end surface of the adjusting portion (11); a mounting hole is provided on the outer side surface of the second clamping plate (2) opposite to the screw hole; the sealed bearing is mounted in the mounting hole; the screw (13) is mounted in the inner ring of the sealed bearing; one end of the screw (13) is threadedly connected to the screw hole; and the other end is fixedly connected to the rotating block (8).

4. The subway track vibration monitor according to claim 3, characterized in that: Slide grooves are provided on both sides of the adjustment groove (10), slide bars (12) are installed on both sides of the adjustment portion (11), the slide bars (12) are slidably arranged in the slide grooves, and the rotating blocks (8) are arranged in a hexagonal structure.

5. The subway track vibration monitor according to claim 2, characterized in that: The cross sections of the positioning groove and the positioning column (16) are both arranged in a rectangular structure.

6. The subway track vibration monitor according to claim 1, characterized in that: The first clamping plate (9) and the second clamping plate (2) are both arranged in a "J"-shaped structure, and the first clamping plate (9) and the second clamping plate (2) are both arranged on both sides of the bottom of the rail (1).

7. The subway track vibration monitor according to claim 1, characterized in that: A wiring hole is provided on the outer side surface of the thickened portion (4), and the wire on the vibration sensor (14) is arranged through the wiring hole.

8. The subway track vibration monitor according to claim 1, characterized in that: An annular groove (15) is provided on the inner side surface of the fixing plate (3) and is located outside the mounting groove. A sealing ring is installed in the annular groove (15).

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