Turnout calibrator based on laser positioning and calibration method thereof

Abstract

The invention belongs to the technical field of railway track maintenance, and provides a turnout calibrator based on laser positioning and a calibration method thereof.The turnout calibrator comprises a bearing base, a sliding adjusting block in sliding connection is arranged in the bearing base, a supporting mounting block is arranged at the top of the sliding adjusting block, and a mounting frame is arranged on the side wall of the top of the supporting mounting block; a laser transmitter is mounted in the mounting frame, and a power supply transmission assembly for supplying power to the laser transmitter is arranged at the top of the supporting mounting block; the device further comprises a magnetic attraction piece, the magnetic attraction piece is installed at the bottom of the bearing base, a first gradienter is embedded into the front end face of the bearing base, and a second gradienter is embedded into the front end face of the supporting installation block. According to the invention, through designed laser measurement, not only is the measurement efficiency of the turnout improved, but also the measurement accuracy is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of railway track maintenance, in particular to a turnout calibrator based on laser positioning and a calibration method thereof. Background Art

[0002] Railway turnouts are key equipment in railway lines that allow trains to switch from one track to another. They are one of the main control objects of the railway signal system and also the weak link in the track structure.

[0003] Railway turnouts are mainly composed of three parts: switch, connection part, frog and guardrail:

[0004] Switch: It consists of a point rail and a base rail. The point rail is movable and guides the train into different tracks through its movement. It is the core component that controls the direction of the train.

[0005] Connecting part: It is composed of guide rails or connecting rails to ensure smooth transition of the train when passing through the switch to avoid bumps or derailment.

[0006] Frog and guardrail: The frog is located in the center of the turnout, allowing the train wheels to transition smoothly to the other track; the guardrail protects the wheels from passing through the frog safely and preventing them from going astray.

[0007] As a key equipment in railway lines, the geometric dimensions and structural status of turnouts directly affect driving safety. Regular measurement of turnouts is an important measure to ensure their normal operation and driving safety. The measurement content mainly includes the gauge, level, height, guide curve support, inspection spacing, and the degree of fit between the point rail and the base rail of each part of the turnout.

[0008] The detection method mainly relies on manual string measurement under no load conditions, with an error of >2mm, which affects the measurement accuracy of the turnout, and manual measurement is inefficient. Summary of the Invention

[0009] In order to solve the above technical problems, the present invention provides a turnout calibrator based on laser positioning and a calibration method thereof, so as to solve the problems such as errors in manual measurement of turnouts in the prior art.

[0010] A turnout calibrator based on laser positioning, comprising a bearing base, a sliding adjustment block slidably connected therein, a support mounting block provided on top of the sliding adjustment block, a mounting frame provided on the top sidewall of the support mounting block, a laser emitter mounted in the mounting frame, a laser emitter head rotatably connected to the laser emitter, and a power transmission assembly for supplying power to the laser emitter provided on top of the support mounting block;

[0011] It also includes a magnetic sheet installed at the bottom of the bearing base. A first level is embedded in the front end surface of the bearing base, and a second level is embedded in the front end surface of the support mounting block.

[0012] Preferably, a sliding groove is provided on the top of the supporting base, and the front and rear ends of the sliding groove pass through the supporting base. Auxiliary sliding rods are provided on the left and right opposite side walls inside the sliding groove. The two auxiliary sliding rods are fixedly installed in the sliding groove and arranged in parallel. The sliding adjustment block enters the sliding groove and cooperates with the auxiliary sliding rods.

[0013] Preferably, the left and right ends of the supporting base are symmetrically provided with limit bars, the vertical cross-sectional profile of the limit bar is "concave", and the "concave" notch faces the supporting base, and the left and right side walls of the supporting base are provided with detachable stop plates, and the stop plates are inserted into the two limit bars on the same side.

[0014] Preferably, the magnetic sheets are installed at intervals on the bottom of the supporting base, a weight-reducing hole is provided at the bottom of the supporting base and between two adjacent magnetic sheets, and two rows of marking lines with opposite scales are symmetrically provided on the top of the supporting base.

[0015] Preferably, a recessed portion is provided at the top of the sliding adjustment block, and a docking piece is provided at the bottom of the supporting mounting block, which cooperates with the recessed portion. A positioning screw is provided on the outside of the supporting mounting block near the four corners, and the positioning screw passes through the supporting mounting block and cooperates with the sliding adjustment block thread.

[0016] Preferably, the level 1 and the level 2 are in the form of water drops, the level 1 is symmetrically installed horizontally in the front end surface of the supporting base and close to the two ends of the supporting base, and the level 2 is vertically arranged in the support mounting block.

[0017] Preferably, the support mounting block consists of an upper plate body and a lower plate body, the top of the lower plate body is provided with a mating groove, the bottom of the lower plate body is provided with a positioning plug plate that cooperates with the mating groove, the front and rear plates of the lower plate body are provided with vertically multi-layered positioning holes, the positioning plug plate is also provided with a positioning hole, and the outside of the lower plate body is provided with a locking knob, and the locking knob passes through the positioning plug plate and is threadedly engaged with the positioning plug plate on the lower plate body.

[0018] Preferably, a receiving groove is provided on the top of the upper plate body, and the power transmission component is installed in the receiving groove. The power transmission component includes a power module and a transmission processing module. The power module is connected to the laser emitter through a wire. The side wall of the upper plate body is provided with a power button, and a charging interface is provided above the power button. The front end surface of the receiving groove is provided with a heat dissipation hole, and a detachable cover is provided on the heat dissipation hole.

[0019] Preferably, a second positioning screw is provided at the bottom of the mounting frame, and the second positioning screw is locked in the laser emitter. The laser emission head of the laser emitter extends out of the mounting frame. A movably connected protective frame is provided on the outside of the mounting frame. The vertical cross-sectional profile of the protective frame is "concave" with the notch facing downward. Clamping holes are symmetrically provided on the top plate of the protective frame. A spring pin is provided on the inner top plate of the mounting frame, and the pin head of the spring pin can pop up and be stuck in the clamping hole.

[0020] A method for calibrating a turnout calibrator using the laser positioning method according to any one of claims 1 to 9, comprising the following specific steps:

[0021] S1: First, install the support mounting block and the sliding adjustment block. The support mounting block consists of an upper plate and a lower plate. Adjust the upper plate to a suitable height. Place the power supply mounting assembly into the upper plate through the receiving slot. Install the laser transmitter in the mounting frame. Connect the wires on the laser transmitter to the power module.

[0022] S2: Place the supporting base on the rail. The magnetic sheet at the bottom of the supporting base is attracted to the rail. Observe the two level gauges (1) on the front surface of the supporting base. If the position is not level, adjust the position of the supporting base. Then check the level gauge (2) on the upper plate to ensure that the upper plate is in a vertical position.

[0023] S3: Turn on the power button, the laser emitter emits laser through the laser emitter head, and the laser light path is toward the direction of the target to be measured. The laser emitter head can be rotated on the laser emitter. After rotating to the appropriate position, the sliding adjustment block can be pushed to move the laser emitter horizontally to detect the horizontal deviation. After rotating the laser emitter head, push the sliding adjustment block again to detect the vertical deviation. The detected data is transmitted to the transmission processing module, and the transmission processing module sends it to the external device to give the measurement results.

[0024] Compared with the prior art, the present invention has the following beneficial effects:

[0025] 1. The present invention provides a bearing base, a sliding adjustment block is installed in the bearing base, the support mounting block and the sliding adjustment block are connected to each other, the mounting frame is fixedly connected to the support mounting block, the laser emitter is installed in the supporting frame, and after the magnetic sheet of the bearing base is adsorbed on the rail, the level meter 1 and the level meter 2 are calibrated to keep the bearing base level and the support mounting block in a vertical state. The laser emitter is turned on, the sliding adjustment block is pushed to move the laser emitter horizontally, and the vertical deviation can be detected by rotating the laser emitter head. Compared with the traditional manual measurement and wire measurement method, it can conveniently measure the deviation of the turnout lock frame, and whether the action rod and the indicating rod are perpendicular to the straight stock basic rail. It can meet the requirements of millimeter-level accuracy in the process of railway signal maintenance and improve the measurement accuracy.

[0026] 2. The turnout calibrator designed by the present invention adopts a laser measurement method, which can quickly and accurately obtain measurement data, greatly shortening the measurement time, improving construction efficiency, and accelerating the progress of railway construction. Moreover, after assembly, it becomes an integrated mechanical structure with simple and easy operation, so even non-professionals can quickly get started. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is a schematic diagram of the structure of the components of the turnout calibrator of the present invention;

[0028] Figure 2 This is a schematic structural diagram of the bearing base and the sliding adjustment block components of the present invention;

[0029] Figure 3 This is a schematic structural diagram of the bottom component of the sliding adjustment block of the present invention;

[0030] Figure 4 This is a schematic diagram of the structure of components such as the support mounting plate and the mounting frame of the present invention;

[0031] Figure 5 This is a schematic diagram of the structure of the upper plate body and positioning plug plate and other components of the present invention;

[0032] Figure 6 This is a schematic structural diagram of the lower plate and sliding adjustment block and other components of the present invention;

[0033] Figure 7 This is a schematic diagram of the structure of components such as the installation frame and the protective frame of the present invention.

[0034] In the picture:

[0035] 1. Load-bearing base; 2. Sliding adjustment block; 3. Support mounting block; 301. Upper plate; 302. Lower plate; 4. Mounting frame; 5. Laser emitter; 6. Magnetic sheet; 7. Level 1; 8. Level 2; 9. Sliding slot; 10. Auxiliary slide bar; 11. Limiting strip; 12. Stopper; 13. Weight-reducing hole; 14. Marking line; 15. Recessed portion; 16. Docking piece; 17. Positioning screw 1; 18. Matching slot; 19. Positioning plug-in plate; 20. Positioning socket; 21. Locking knob; 22. Accommodating slot; 23. Power module; 24. Transmission processing module; 25. Power button; 26. Charging port; 27. Heat dissipation hole; 28. Cover; 29. ​​Positioning screw 2; 30. Protective frame; 31. Clamping hole; 32. Spring pin. DETAILED DESCRIPTION

[0036] The following embodiments of the present invention are described in further detail with reference to the accompanying drawings and examples. The following examples are used to illustrate the present invention but are not intended to limit the scope of the present invention.

[0037] As attached Figure 1 To the attached Figure 7 As shown:

[0038] Embodiment 1: The present invention provides a turnout calibrator based on laser positioning, comprising a bearing base 1, a sliding adjustment block 2 slidably connected therein, a support mounting block 3 provided on top of the sliding adjustment block 2, a mounting frame 4 provided on the top sidewall of the support mounting block 3, a laser emitter 5 installed in the mounting frame 4, a laser emission head rotatably connected to the laser emitter 5, and a power transmission assembly for supplying power to the laser emitter 5 provided on the top of the support mounting block 3;

[0039] It also includes a magnetic sheet 6, which is installed at the bottom of the supporting base 1. The front end surface of the supporting base 1 is embedded with a level 1 7, and the front end surface of the supporting mounting block 3 is embedded with a level 2 8.

[0040] It should be noted that, through the setting of the bearing base 1, the sliding adjustment block 2 is installed in the bearing base 1, the support mounting block 3 and the sliding adjustment block 2 are connected to each other, the mounting frame 4 is fixedly connected to the support mounting block 3, and the laser emitter 5 is installed in the supporting frame. After the magnetic sheet 6 of the bearing base 1 is adsorbed on the rail, the level meter 1 7 and the level meter 2 8 are calibrated to keep the bearing base 1 level and the support mounting block 3 in a vertical state, turn on the laser emitter 5, push the sliding adjustment block 2, and move the laser emitter 5 horizontally. Rotating the laser emitter head can detect the vertical deviation. Compared with the traditional manual measurement and wire measurement method, it can conveniently measure the deviation of the turnout lock frame, and whether the action rod and the indicating rod are perpendicular to the straight basic rail. It can meet the requirements of millimeter-level accuracy in the process of railway signal maintenance and improve the measurement accuracy.

[0041] Specifically, when the laser emitter 5 is pushed to move horizontally, the scale mark line 14 displays the displacement with a graduation value of 0.5 mm. For example, if the laser spot is offset by 10 mm on the target, the actual deviation is calculated in combination with the principle of similar triangles.

[0042] Project the laser onto the scale plate pre-installed on the side of the action rod (non-working side). If the laser spot moves along the vertical line (such as rising 50mm), it means that the rod has no lateral deviation and is judged to be vertical.

[0043] In this embodiment, a sliding groove 9 is provided on the top of the supporting base 1, and the front and rear ends of the sliding groove 9 pass through the supporting base 1. Auxiliary sliding rods 10 are provided on the left and right opposite side walls inside the sliding groove 9. The two auxiliary sliding rods 10 are fixedly installed in the sliding groove 9 and arranged in parallel. The sliding adjustment block 2 enters the sliding groove 9 and cooperates with the auxiliary sliding rods 10.

[0044] It should be noted that, through the provided sliding groove 9, the sliding adjustment block 2 is slidably connected in the sliding groove 9, so that the supporting mounting block 3 can slide on it after the supporting base 1 is fixed, and the auxiliary sliding rod 10 is fixedly installed inside the sliding groove 9. The sliding adjustment block 2 and the auxiliary sliding rod 10 cooperate with each other. On the one hand, the movement of the sliding adjustment block 2 can be restricted in the sliding groove 9 so that it will not detach upward, and the smoothness and stability of the sliding of the sliding adjustment block 2 in the sliding groove 9 are improved.

[0045] In this embodiment, the left and right ends of the supporting base 1 are symmetrically provided with limit bars 11, the vertical cross-sectional profile of the limit bar 11 is "concave", and the "concave" notch faces the supporting base 1, and the left and right side walls of the supporting base 1 are provided with detachable stop plates 12, which are inserted into the two limit bars 11 on the same side.

[0046] It should be noted that the limit strips 11 are fixed on both sides of the supporting base 1, and the stop pieces 12 pass through the two limit strips 11 on the same side. When the sliding adjustment block 2 slides to the end in the sliding groove 9, it will be blocked by the stop piece 12 and will not exit the sliding groove 9. At the same time, the stop piece 12 is designed to be disassembled. When impurities enter the sliding groove 9, the stop piece 12 can be pulled out and the sliding adjustment block 2 can be disassembled to facilitate cleaning the inside of the sliding groove 9.

[0047] In this embodiment, the magnetic sheets 6 are installed at intervals at the bottom of the supporting base 1. A weight-reducing hole 13 is provided at the bottom of the supporting base 1 and between two adjacent magnetic sheets 6. Two rows of marking lines 14 with opposite scales are symmetrically provided on the top of the supporting base 1.

[0048] It should be noted that the designed weight-reducing hole 13 can reduce the weight of the supporting base 1, thereby facilitating the carrying of the switch instrument. The marking lines 14 are symmetrically arranged on the top of the supporting base 1. On the one hand, it is convenient to know the distance moved by the laser emitter 5, and on the other hand, it can also calibrate the position of the support mounting block 3.

[0049] In this embodiment, a recessed portion 15 is provided at the top of the sliding adjustment block 2, and a docking piece 16 is provided at the bottom of the supporting mounting block 3. The docking piece 16 cooperates with the recessed portion 15. A positioning screw 17 is provided on the outside of the supporting mounting block 3 near the four corners. The positioning screw 17 passes through the supporting mounting block 3 and is threadedly engaged with the sliding adjustment block 2.

[0050] It should be noted that the recessed portion 15 and the docking piece 16 cooperate with each other, which can improve the assembly accuracy when the support mounting block 3 and the sliding adjustment block 2 are assembled with each other. The two can be locked together by positioning screws, and it is also convenient for disassembly of the two in the later stage. When there is a problem with the power transmission component or the laser emitter 5 in the upper plate body 301, the support mounting block 3 can be removed for maintenance.

[0051] In this embodiment, level 1 7 and level 2 8 are in the form of water drops. Level 1 7 is symmetrically installed horizontally in the front end surface of the supporting base 1 and close to the two ends of the supporting base 1. Level 2 8 is vertically arranged in the support mounting block 3.

[0052] It should be noted that the level 1 7 and the level 2 8 adopt a water drop method, and the observation method is simple and easy to understand. The level 1 7 is placed horizontally to check whether the supporting base 1 remains horizontal, and the level 2 8 is placed vertically to adjust whether the support mounting block 3 is in a vertical state, thereby establishing a correct benchmark for the laser emitter 5 when measuring horizontal and vertical data, thereby improving the accuracy of the laser emitter 5 in the later data detection.

[0053] In this embodiment, the support mounting block 3 is composed of an upper plate body 301 and a lower plate body 302. The top of the lower plate body 302 is provided with a mating groove 18, and the bottom of the lower plate body 302 is provided with a positioning plug plate 19 that cooperates with the mating groove 18. The front and rear plates of the lower plate body 302 are provided with vertically multi-layered positioning holes 20, and the positioning plug plate 19 is also provided with a positioning hole 20. The outside of the lower plate body 302 is provided with a locking knob 21, which passes through the positioning plug plate 19 and is threadedly engaged with the positioning plug plate 19 on the lower plate body 302.

[0054] It should be noted that, by designing the support mounting block 3 into an upper plate body 301 and a lower plate body 302, the positioning plug plate 19 at the bottom of the upper plate body 301 can be inserted into the matching groove 18 at the top of the lower plate body 302, and the lower plate body 302 is provided with spaced positioning holes 20, and the locking knob 21 is inserted into the positioning hole 20, so that the height of the upper plate body 301 can be adjusted, and the height of the laser emitter 5 can be adjusted as needed to adapt to measurements at different heights.

[0055] In this embodiment, a receiving groove 22 is provided on the top of the upper plate body 301, and a power transmission component is installed in the receiving groove 22. The power transmission component includes a power module 23 and a transmission processing module 24. The power module 23 is electrically connected to the laser emitter 5 through a wire. A power button 25 is provided on the side wall of the upper plate body 301, and a charging interface 26 is provided above the power button 25. A heat dissipation hole 27 is provided on the front end surface of the receiving groove 22, and a detachable cover plate 28 is provided on the heat dissipation hole 27.

[0056] It should be noted that the power transmission component is installed in the accommodating slot 22, the power module 23 is connected to the laser emitter 5 through a wire, the laser emitter 5 and the transmission processing module 24 are electrically connected to each other, and the laser emitter head in the laser emitter 5 can be rotated. When it is rotated to a suitable angle, data measurement is performed. After the measurement is completed, the measured data can be transmitted to the data transmission module, and finally transmitted to an external device so that the data results can be viewed.

[0057] In this embodiment, a second positioning screw 29 is provided at the bottom of the mounting frame 4, and the second positioning screw 29 is locked in the laser emitter 5. The laser emission head of the laser emitter 5 extends out of the mounting frame 4. A movably connected protective frame 30 is provided on the outside of the mounting frame 4. The vertical cross-sectional profile of the protective frame 30 is "concave" with the notch facing downward. Clamping holes 31 are symmetrically provided on the top plate of the protective frame 30, and a spring pin 32 is provided on the inner top plate of the mounting frame 4. The pin head of the spring pin 32 can pop up and be clamped into the clamping hole 31.

[0058] It should be noted that the laser emitter 5 is connected to the mounting frame 4 by means of positioning screws, so that it can be removed later during maintenance. A movable fitting protective frame 30 is provided on the outside of the mounting frame 4, and two card holes 31 are designed on the protective frame 30. When the laser emitter 5 is working, the protective frame 30 is located at the top of the mounting frame 4, and the spring pin 32 is inserted into one of the card holes 31. When the measurement is completed, the spring pin 32 can be pressed downward, and the protective frame 30 moves forward to cover the laser emitter 5. The spring pin 32 enters the other card hole 31, which can protect the laser emitter 5 and prevent the laser emitter head from being damaged by sunlight.

[0059] The method of using the above embodiment is to first install the support mounting block 3 and the sliding adjustment block 2. The support mounting block 3 is composed of an upper plate body 301 and a lower plate body 302. Adjust the upper plate body 301 to a suitable height, place the power supply mounting assembly into the upper plate body 301 through the accommodating groove 22, and install the laser emitter 5 in the mounting frame 4. The wires on the laser emitter 5 are connected to the power module 23.

[0060] Place the supporting base 1 on the rails. The magnetic sheet 6 at the bottom of the supporting base 1 is attracted to the rails. Observe the two level gauges 1 and 7 on the front surface of the supporting base 1. If the position is not level, adjust the position of the supporting base 1. Then check the level gauge 2 and 8 on the upper plate 301 to make sure that the upper plate 301 is in a vertical position.

[0061] Turn on the power button 25, the laser emitter 5 emits laser through the laser emitter head, and the laser light path is directed toward the target to be measured. The laser emitter head can be rotated on the laser emitter 5. After rotating to a suitable position, the sliding adjustment block 2 can be pushed to move the laser emitter 5 horizontally to detect the horizontal deviation. After rotating the laser emitter head, the sliding adjustment block 2 is pushed again to detect the vertical deviation. The detected data is transmitted to the transmission processing module 24, and the transmission processing module 24 sends it to an external device to give a measurement result.

[0062] The embodiments of the present invention are provided for the purpose of illustration and description. Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations of the present invention. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. A turnout calibrator based on laser positioning, characterized by: include: A bearing base (1), wherein a sliding adjustment block (2) is provided in a sliding connection within the bearing base (1), a support mounting block (3) is provided on the top of the sliding adjustment block (2), a mounting frame (4) is provided on the top side wall of the support mounting block (3), a laser emitter (5) is mounted in the mounting frame (4), a laser emitter head is rotatably connected to the laser emitter (5), and a power transmission component for supplying power to the laser emitter (5) is provided on the top of the support mounting block (3); It also includes a magnetic sheet (6), which is installed at the bottom of the supporting base (1). The front end surface of the supporting base (1) is embedded with a level meter 1 (7), and the front end surface of the supporting mounting block (3) is embedded with a level meter 2 (8).

2. The turnout calibrator based on laser positioning according to claim 1, characterized in that: A sliding groove (9) is provided on the top of the supporting base (1), and the front and rear ends of the sliding groove (9) pass through the supporting base (1). Auxiliary sliding rods (10) are provided on the left and right opposite side walls inside the sliding groove (9). Two auxiliary sliding rods (10) are fixedly installed in the sliding groove (9) and arranged in parallel. The sliding adjustment block (2) enters the sliding groove (9) and cooperates with the auxiliary sliding rods (10).

3. The turnout calibrator based on laser positioning according to claim 2, characterized in that: The left and right ends of the supporting base (1) are symmetrically provided with limit strips (11), the vertical cross-sectional profile of the limit strip (11) is "concave", and the "concave" notch faces the supporting base (1), and the left and right side walls of the supporting base (1) are provided with stoppers (12) for detachable connection, and the stoppers (12) are inserted into the two limit strips (11) on the same side.

4. The turnout calibrator based on laser positioning according to claim 1, characterized in that: The magnetic sheets (6) are installed at intervals on the bottom of the supporting base (1); a weight-reducing hole (13) is provided at the bottom of the supporting base (1) and between two adjacent magnetic sheets (6); and two rows of marking lines (14) with scales facing each other are symmetrically provided on the top of the supporting base (1).

5. The turnout calibrator based on laser positioning according to claim 1, characterized in that: The top of the sliding adjustment block (2) is provided with a recessed portion (15), the bottom of the supporting installation block (3) is provided with a docking piece (16), the docking piece (16) and the recessed portion (15) cooperate with each other, and the outside of the supporting installation block (3) is provided with a positioning screw (17) near the four corners, and the positioning screw (17) passes through the supporting installation block (3) and is threadedly engaged with the sliding adjustment block (2).

6. The turnout calibrator based on laser positioning according to claim 1, characterized in that: The level 1 (7) and the level 2 (8) are installed in a water injection manner. The level 1 (7) is symmetrically installed horizontally in the front end surface of the bearing base (1) and is close to the two ends of the bearing base (1). The level 2 (8) is vertically arranged in the support mounting block (3).

7. The turnout calibrator based on laser positioning according to claim 6, characterized in that: The support mounting block (3) is composed of an upper plate body (301) and a lower plate body (302), the top of the lower plate body (302) is provided with a matching groove (18), the bottom of the lower plate body (302) is provided with a positioning plug plate (19) that matches with the matching groove (18), the front and rear plates of the lower plate body (302) are provided with vertical multi-layer spaced positioning holes (20), the positioning plug plate (19) is also provided with a positioning plug hole (20), the outside of the lower plate body (302) is provided with a locking knob (21), the locking knob (21) passes through the positioning plug plate (19) and is threadedly matched with the positioning plug plate (19) on the lower plate body (302).

8. The turnout calibrator based on laser positioning according to claim 7, characterized in that: The top of the upper plate (301) is provided with a receiving groove (22), the power transmission component is installed in the receiving groove (22), the power transmission component includes a power module (23) and a transmission processing module (24), the power module (23) is electrically connected to the laser emitter (5) through a wire, the side wall of the upper plate (301) is provided with a power button (25), and a charging interface (26) is provided above the power button (25). The front end surface of the receiving groove (22) is provided with a heat dissipation hole (27), and a detachable cover plate (28) is provided on the heat dissipation hole (27).

9. The turnout calibrator based on laser positioning according to claim 1, characterized in that: A second positioning screw (29) is provided at the bottom of the mounting frame (4), and the second positioning screw (29) is locked in the laser emitter (5). The laser emission head of the laser emitter (5) extends out of the mounting frame (4). A movably connected protective frame (30) is provided on the outside of the mounting frame (4). The vertical cross-sectional profile of the protective frame (30) is "concave" with the notch facing downward. Clamping holes (31) are symmetrically provided on the top plate of the protective frame (30). A spring pin (32) is provided on the inner top plate of the mounting frame (4). The pin head of the spring pin (32) can pop up and be clamped into the clamping hole (31).

10. A method for calibrating a turnout calibrator using the laser positioning method according to any one of claims 1 to 9, comprising the following specific steps: S1: First, the support mounting block (3) and the sliding adjustment block (2) are assembled. The support mounting block (3) is composed of an upper plate (301) and a lower plate (302). The upper plate (301) is adjusted to a suitable height. The power supply mounting assembly is placed inside the upper plate (301) through the receiving groove (22). The laser emitter (5) is installed in the mounting frame (4). The wires on the laser emitter (5) are connected to the power module (23). S2: Place the supporting base (1) on the rail, and the magnetic sheet (6) at the bottom of the supporting base (1) and the rail are attracted to each other. Observe the two level gauges (7) in the front face of the supporting base (1). If the position is not level, adjust the position of the supporting base (1). Then check the level gauge (8) in the upper plate (301) to make the upper plate (301) in a vertical state. S3: Turn on the power button (25), the laser emitter (5) emits laser light through the laser emitter head, and the laser light path is directed toward the target to be measured. The laser emitter head can be rotated on the laser emitter (5). After rotating to a suitable position, the sliding adjustment block (2) can be pushed to move the laser emitter (5) horizontally to detect the horizontal deviation. After rotating the laser emitter head, the sliding adjustment block (2) is pushed again to detect the vertical deviation. The detected data is transmitted to the transmission processing module (24), and the transmission processing module (24) sends it to the external device to provide the measurement result.

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