Method for continuously measuring thickness of road marking

Abstract

The invention relates to the technical field of marking line measurement, in particular to a road marking line thickness continuous measurement method which comprises a support, a through groove is formed in the support, first wheels which are symmetrically arranged are rotationally installed at the bottom of the support, fixing plates which are symmetrically arranged are fixed to the two sides of the support, and a baffle is further fixed to the support; the measuring rod is arranged on the support, a measuring instrument used for measuring the thickness of a marked line is fixed to the end, facing the support, of the measuring rod, and a driving mechanism connected with the measuring rod is arranged on the fixing plate; the guide assembly is arranged on the baffle plate and is connected with the measuring rod; the second wheels are rotationally installed on the baffle and are symmetrically arranged, the baffle is provided with a rotating assembly connected with the second wheels, and the baffle is further provided with a one-way transmission mechanism connected with the rotating assembly and the driving mechanism; the adjusting assembly is arranged on the baffle and connected with the one-way transmission mechanism.

Description

Technical Field

[0001] This invention relates to the field of road marking measurement technology, specifically a method for continuous measurement of road marking thickness. Background Technology

[0002] Traffic markings play a crucial role in guiding traffic. They are markings on the road surface that use lines, arrows, text, vertical markings, raised pavement markers, and delineators to convey traffic information to road users, including guidance, restrictions, and warnings. Their function is to regulate and guide traffic; they can be used in conjunction with signs or independently.

[0003] According to the regulations on road traffic signs and markings, the position error between the newly built road markings and the design position is ±30mm. When repainting markings, the new markings and the old markings on the existing road should basically coincide, with a positional deviation of ±30mm. The dimensional error of other markings should not exceed 5%. The length, width and longitudinal spacing of longitudinal and transverse markings and the longitudinal spacing of discontinuous lines should comply with the provisions of Table 3.

[0004] Therefore, after the road markings are made, they need to be measured. In terms of measuring the thickness of the road markings, it is usually done manually by hand with a thickness measuring instrument. However, this method requires manual adjustment of the position of the measuring instrument. After the test is completed, the measuring instrument is in constant contact with the ground, which will cause wear and tear on the measuring instrument and make the measurement results inaccurate. Summary of the Invention

[0005] The purpose of this invention is to provide a method for continuous measurement of road marking thickness, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] A method for continuous measurement of road marking thickness includes:

[0008] Step 1: Before measurement, take one kilometer as a test unit, and select three 100-meter sections within each test unit as test segments;

[0009] Step 2: After selecting the inspection section, visually inspect to ensure that the color of the markings is uniform, the edges are neat, and the lines are regular.

[0010] Step 3: Place the thickness measuring device on the road section to be tested, and clean the road section with a sweeper to ensure that the test section is not contaminated by impurities or garbage, which would lead to inaccurate measurement results. At this time, the thickness of the road markings on the selected road section is measured under the action of the thickness measuring device.

[0011] Step 4: After the measurement is completed, determine whether the road markings are qualified based on the measurement data recorded by the thickness measuring equipment.

[0012] As a further aspect of the present invention: the thickness measuring device includes:

[0013] The bracket has a through groove, a first wheel symmetrically arranged is rotatably mounted on the bottom of the bracket, a fixing plate symmetrically arranged is fixedly mounted on both sides of the bracket, and a baffle is also fixed on the bracket.

[0014] A measuring rod is mounted on the bracket. A measuring instrument for measuring the thickness of the marking is fixed to one end of the measuring rod facing the bracket. A drive mechanism connected to the measuring rod is provided on the fixed plate. The drive mechanism can drive the measuring instrument to reciprocate in the horizontal direction.

[0015] A guide component is disposed on the baffle and connected to the measuring rod, the guide component being capable of controlling the measuring rod to move in the vertical direction when the measuring rod reciprocates in the horizontal direction;

[0016] The second wheel is rotatably mounted on the baffle and is symmetrically arranged. The baffle is provided with a rotating component connected to the second wheel. The baffle is also provided with a one-way transmission mechanism connected to the rotating component and the drive mechanism. The drive mechanism can drive the one-way transmission mechanism to drive the rotating component to move, so as to drive the second wheel to rotate.

[0017] An adjustment component is disposed on the baffle and connected to the one-way transmission mechanism. The adjustment component can drive the rotating component to move through the one-way transmission mechanism to adjust the rotational speed of the second wheel.

[0018] As a further embodiment of the present invention: the driving mechanism includes a motor fixedly mounted on the fixed plate, a transmission rod rotatably mounted on the fixed plate and connected to the output shaft of the motor, a guide groove is provided on the circumferential side wall of the transmission rod, a guide assembly is provided on the fixed plate and connected to the guide groove, and the guide assembly is connected to the measuring rod and the one-way transmission mechanism.

[0019] As a further embodiment of the present invention: the guiding assembly includes a guide rod fixedly mounted on the fixed plate, a guide sleeve movably mounted on the guide rod, a rhomboid block rotatably mounted on the guide sleeve and engaging with the guide groove, a reciprocating structure connected to the guide sleeve on the bracket, the reciprocating structure being connected to the measuring rod, and the guide sleeve being connected to the one-way transmission mechanism.

[0020] As a further embodiment of the present invention: the reciprocating structure includes a movable block that is slidably installed in the through groove and fixedly connected to the guide sleeve. A fixed sleeve is fixed to one end of the movable block away from the transmission rod. A spring is fixed inside the fixed sleeve. A slot is provided on the fixed sleeve. The measuring rod is movably connected to the fixed sleeve and abuts against the spring. The measuring rod engages with the slot.

[0021] As a further embodiment of the present invention: the guiding component includes a guide rail fixedly mounted on the measuring rod and passing through the slot, a sliding block slidably mounted in the guide rail, and a protrusion fixed on the sliding block;

[0022] The guiding assembly also includes a guiding groove formed on the baffle and engaging with the protrusion. A first limiting rod and a second limiting rod are rotatably mounted on the baffle. A limiting block is fixed on the baffle to abut against the first limiting rod and the second limiting rod.

[0023] As a further embodiment of the present invention: the rotating assembly includes a second rotating rod and a third rotating rod rotatably mounted on the baffle. A first bevel gear is fixed on the second rotating rod, and a second bevel gear meshing with the first bevel gear is fixed on the third rotating rod. A second belt connected to the axle of the second wheel is sleeved on the third rotating rod, and the second rotating rod is connected to the one-way transmission mechanism.

[0024] As a further embodiment of the present invention: the one-way transmission mechanism includes a ratchet plate fixedly installed on the guide sleeve, a first rotating rod rotatably installed on the baffle, a ratchet wheel that cooperates with the ratchet plate fixed on the first rotating rod, a support assembly connected to the first rotating rod provided on the baffle, and the support assembly connected to the adjustment assembly.

[0025] As a further embodiment of the present invention: the support assembly includes a turntable fixedly installed on the first rotating rod, the turntable having a plurality of circumferentially equidistant sliding grooves, a sliding rod connected to the adjustment assembly being slidably installed in the sliding grooves, an arc-shaped plate being fixed on the sliding rod, and a first belt connected to the second rotating rod being sleeved on the arc-shaped plate.

[0026] As a further embodiment of the present invention: the adjusting assembly includes a lead screw rotatably mounted on the baffle, a threaded sleeve that is threadedly engaged with the lead screw is movably mounted on the lead screw, and a limiting plate sleeved on the first rotating rod is fixed on the threaded sleeve.

[0027] The adjustment assembly further includes a movable sleeve movably mounted on the first rotating rod, and a connecting rod hinged to the movable sleeve and hinged to the sliding rod, and the limiting plate engaging with the movable sleeve.

[0028] Compared with the prior art, the beneficial effects of the present invention are as follows: The present application can control the measuring rod to perform a comprehensive measurement of the horizontal surface of the marking through the drive mechanism. At the same time, the measuring rod will also drive the guide component to move. After the measuring rod finishes measuring the marking, the measuring rod will separate from the ground under the action of the guide component, ensuring that the measuring rod will not rub against the ground when not being tested. After the measurement is completed, the drive mechanism will also drive the rotating component to move through the one-way transmission mechanism, so that the second wheel rotates, thereby driving the device to move to the next detection point. The movement of the one-way transmission mechanism can also be controlled by the adjustment component, and the number of rotations of the second wheel can be adjusted by the rotating component to adapt to the spacing of different measurement points. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of one embodiment of a method for continuous measurement of road marking thickness.

[0030] Figure 2 for Figure 1 A magnified schematic diagram of the structure at point A in the middle.

[0031] Figure 3 This is a structural schematic diagram of another angle in one embodiment of the method for continuous measurement of road marking thickness.

[0032] Figure 4 for Figure 3 Enlarged schematic diagram of the structure at point B.

[0033] Figure 5 This is a schematic diagram of part of the drive mechanism in one embodiment of a method for continuous measurement of road marking thickness.

[0034] Figure 6 This is an exploded structural diagram of part of the driving mechanism in one embodiment of a method for continuous measurement of road marking thickness.

[0035] Figure 7 This is a schematic diagram showing the connection relationship between a portion of the guide component, the one-way transmission mechanism, the adjustment component, and the portion of the rotating component in one embodiment of a method for continuous measurement of road marking thickness.

[0036] Figure 8 This is a schematic diagram showing the connection relationship of some unidirectional transmission mechanisms and adjustment components in one embodiment of a method for continuous measurement of road marking thickness.

[0037] Figure 9 This is an exploded structural diagram of a portion of the unidirectional transmission mechanism in one embodiment of a method for continuous measurement of road marking thickness.

[0038] In the diagram: 1. Bracket; 2. Fixed plate; 3. Motor; 4. Transmission rod; 5. Guide groove; 6. Guide rod; 7. Guide sleeve; 8. Rhomboid block; 9. Movable block; 10. Fixed sleeve; 11. Measuring rod; 12. Spring; 13. Measuring instrument; 14. Guide rail; 15. Sliding block; 16. Baffle; 17. Guide groove; 18. Limit rod No. 1; 19. Limit rod No. 2; 20. Racket plate; 21. Rotating rod No. 1; 22. Ratchet; 23. Turntable; 24. Slide groove; 25. Sliding rod; 26. Arc plate; 27. Belt No. 1; 28. Rotating rod No. 2; 29. ​​Bevel gear No. 1; 30. Bevel gear No. 2; 31. Belt No. 2; 32. Lead screw; 33. Threaded sleeve; 34. Movable sleeve; 35. Connecting rod; 36. Limit plate. Detailed Implementation

[0039] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

[0040] In this embodiment of the invention, a method for continuous measurement of road marking thickness includes:

[0041] Step 1: Before measurement, take one kilometer as a test unit, and select three 100-meter sections within each test unit as test segments;

[0042] Step 2: After selecting the inspection section, visually inspect to ensure that the color of the markings is uniform, the edges are neat, and the lines are regular.

[0043] Step 3: Place the thickness measuring device on the road section to be tested, and clean the road section with a sweeper to ensure that the test section is not contaminated by impurities or garbage, which would lead to inaccurate measurement results. At this time, the thickness of the road markings on the selected road section is measured under the action of the thickness measuring device.

[0044] Step 4: After the measurement is completed, determine whether the road markings are qualified based on the measurement data recorded by the thickness measuring equipment.

[0045] Please see Figures 1-9 The thickness measuring device includes:

[0046] The bracket 1 has a through groove, and a first wheel is rotatably mounted on the bottom of the bracket 1 in a symmetrical arrangement. Fixing plates 2 are fixedly mounted on both sides of the bracket 1 in a symmetrical arrangement. A baffle 16 is also fixed on the bracket 1.

[0047] Please see Figure 1 , Figure 3 , Figure 5 , Figure 6A measuring rod 11 is mounted on the bracket 1. A measuring instrument 13 for measuring the thickness of the marking is fixed to one end of the measuring rod 11 facing the bracket 1. A driving mechanism connected to the measuring rod 11 is mounted on the fixing plate 2. The driving mechanism can drive the measuring instrument 13 to reciprocate horizontally. The driving mechanism includes a motor 3 fixedly mounted on the fixing plate 2. A transmission rod 4 rotatably mounted on the fixing plate 2 and connected to the output shaft of the motor 3 is also mounted on the fixing plate 2. A guide groove 5 is formed on the circumferential side wall of the transmission rod 4. A guide assembly connected to the guide groove 5 is mounted on the fixing plate 2. The guide assembly is connected to the measuring rod 11 and the one-way transmission mechanism. The guide assembly includes a guide rod fixedly mounted on the fixing plate 2. A guide sleeve 7 is movably mounted on the guide rod 6. A rhomboid block 8 that engages with the guide groove 5 is rotatably mounted on the guide sleeve 7. A reciprocating structure connected to the guide sleeve 7 is provided on the bracket 1. The reciprocating structure is connected to the measuring rod 11. The guide sleeve 7 is connected to the one-way transmission mechanism. The aforementioned reciprocating structure includes a movable block 9 that is slidably mounted in the through groove and fixedly connected to the guide sleeve 7. A fixed sleeve 10 is fixed at one end of the movable block 9 away from the transmission rod 4. A spring 12 is fixed inside the fixed sleeve 10. A slot is provided on the fixed sleeve 10. The measuring rod 11 is movably connected to the fixed sleeve 10 and abuts against the spring 12. The measuring rod 11 engages with the slot.

[0048] In detail, the guide groove 5 can be divided into four sections: the first section is the first semi-annular groove, the second section is the first spiral groove connected to the first semi-annular groove, the third section is the second semi-annular groove connected to the first spiral groove, and the fourth section is the second spiral groove connected to both the first and second semi-annular grooves. The first and second spiral grooves are arranged in a crisscross pattern. The rhombus-shaped block 8 is arranged in a rhombus shape. When the device is placed on the marking line, in the initial state, the rhombus-shaped block 8 is located in the first semi-annular groove, and the spring 12 is in a compressed state, so that the measuring rod 11 is located at the end of its stroke on one side of the marking line. The measuring rod 11 abuts against the marking line, and the measuring instrument 13 will record the distance between the measuring rod 11 and the bracket 1. When it is necessary to measure the thickness of the marking line in the lateral direction, the motor 3 works, driving the transmission rod 4 to rotate. This causes the guide groove 5 to move. Under the action of the guide groove 5, the rhombus block 8 is driven to disengage from the first semi-annular groove and enter the first spiral groove. This causes the guide sleeve 7 to move along the length of the guide rod 6, and the movable block 9 to move along the length of the through groove. The movable block 9 will drive the measuring rod 11 to slide on the marking line through the fixed sleeve 10. The thickness of the marking line is measured according to the change in the distance between the measuring instrument 13 and the bracket 1. When the rhombus block 8 enters the second semi-annular groove, the guide sleeve 7 moves to the end of the stroke on one side of the guide rod 6. When the rhombus block 8 enters the second spiral groove, the guide sleeve 7 is driven to move towards the initial position until the rhombus block 8 returns to the first semi-annular groove. The above steps are repeated to measure the thickness of the entire horizontal surface of the marking line.

[0049] Please see Figures 1-3 , Figure 7 A guide component is disposed on the baffle 16 and connected to the measuring rod 11. The guide component can control the measuring rod 11 to move vertically when the measuring rod 11 reciprocates in the horizontal direction. The guide component includes a guide rail 14 fixedly installed on the measuring rod 11 and passing through the slot. A sliding block 15 is slidably installed in the guide rail 14, and a protrusion is fixed on the sliding block 15. The guide component also includes a guide groove 17 formed on the baffle 16 and engaging with the protrusion. A first limiting rod 18 and a second limiting rod 19 are rotatably installed on the baffle 16. A limiting block is fixed on the baffle 16 to abut against the first limiting rod 18 and the second limiting rod 19.

[0050] It should be noted that the guide groove 17 can be divided into four sections: the first section is a short straight groove, the second section is an inclined groove connected to the short straight groove, the third section is a vertical groove connected to the inclined groove, and the fourth section is a long straight groove connected to both the vertical groove and the short straight groove. When the marking needs to be inspected, in the initial state, the sliding block 15 is located in the middle position of the guide rail 14, the measuring rod 11 abuts against the marking, and the protrusion is located at the connection point between the short straight groove and the long straight groove. When the marking needs to be inspected, the measuring rod 11 moves along the length of the guide rod 6. The movement of the measuring rod 11 causes the guide rail 14 to move, which in turn causes the protrusion to move along the length of the short straight groove via the sliding block 15. The length of the short straight groove is the same as the width of the marking. To ensure that the measuring rod 11 does not continue to contact the ground and cause wear after measurement, it is necessary to control the measuring rod 11 to separate from the ground. When the protrusion moves to the position where the short straight groove and the inclined groove meet, it causes the protrusion to move, which in turn causes the sliding block 15 to slide within the guide rail 14. When the sliding block 15 moves to the end of the travel of the guide rail 14, it causes the guide rail 14 to move. Rail 14 drives measuring rod 11 to move towards the fixed sleeve 10, causing measuring rod 11 to separate from the marking line. When the protrusion moves to abut against the first limiting rod 18, the first limiting rod 18 ensures that the protrusion will not enter the long straight groove. When the protrusion moves to the position where the inclined groove and the vertical groove are connected, measuring rod 11 moves to the end of its vertical stroke. At this time, under the action of gravity, the protrusion will pass through the vertical groove and enter the long straight groove. The rhombus block 8 just moves into the semi-circular groove, and the transmission rod 4 continues to rotate. The movement causes the measuring rod 11 to move toward the initial position. The protrusion will move along the length of the long straight groove. When the protrusion moves to the position where it abuts against the second limiting rod 19, the second limiting rod 19 ensures that the protrusion will not enter the short straight groove, thus ensuring that the measuring rod 11 will not contact the ground when not measuring. The measuring rod 11 continues to move until the protrusion returns to the short straight groove. The above steps are repeated, so that the measuring rod 11 is in contact with the mark when measuring and separates from the ground when not measuring.

[0051] Please see Figure 3 , Figure 7 The second wheel is rotatably mounted on the baffle 16 and arranged symmetrically. The baffle 16 is provided with a rotating assembly connected to the second wheel. The rotating assembly includes a second rotating rod 28 and a third rotating rod rotatably mounted on the baffle 16. A first bevel gear 29 is fixed on the second rotating rod 28. A second bevel gear 30 that meshes with the first bevel gear 29 is fixed on the third rotating rod. A second belt 31 connected to the shaft of the second wheel is sleeved on the third rotating rod. The second rotating rod 28 is connected to the one-way transmission mechanism.

[0052] Furthermore, after the measurement is completed, it is necessary to control the rotation of the second wheel to move the device to the next measurement position. At this time, the measuring rod 11 separates from the ground and, under the action of the guide sleeve 7, drives the one-way transmission mechanism to move, thereby driving the second rotating rod 28 to rotate. The second rotating rod 28 will also drive the first bevel gear 29 to rotate, causing the second bevel gear 30 to rotate, which in turn drives the second belt 31 to move through the third rotating rod, causing the second wheel to rotate. The second wheel will control the device to move to the next measurement point until the device moves to the required position, at which point the one-way transmission mechanism stops moving, causing the second wheel to stop rotating.

[0053] Please see Figure 1 , Figure 3 , Figure 4 , Figures 7-9 The baffle 16 is also provided with a one-way transmission mechanism connected to the rotating component and the drive mechanism. The drive mechanism can drive the one-way transmission mechanism to drive the rotating component to move, thereby driving the second wheel to rotate. The one-way transmission mechanism includes a ratchet plate 20 fixedly installed on the guide sleeve 7. A first rotating rod 21 is rotatably installed on the baffle 16. A ratchet 22 that cooperates with the ratchet plate 20 is fixed on the first rotating rod 21. A support component connected to the first rotating rod 21 is provided on the baffle 16. The support component is connected to the adjustment component. The support component includes a turntable 23 fixedly installed on the first rotating rod 21. The turntable 23 has a plurality of circumferentially equidistant sliding grooves 24. A sliding rod 25 connected to the adjustment component is slidably installed in the sliding grooves 24. An arc-shaped plate 26 is fixed on the sliding rod 25. A first belt 27 connected to the second rotating rod 28 is sleeved on the arc-shaped plate 26.

[0054] Furthermore, after the measuring rod 11 completes its measurement, the guide groove 17 causes the measuring rod 11 to separate from the ground. Simultaneously, the guide sleeve 7 moves towards its initial position and drives the ratchet 22 to rotate via the ratchet plate 20. The ratchet 22 then drives the first rotating rod 21 to rotate, which in turn drives the turntable 23 to rotate. The turntable 23 then drives the sliding rod 25 to rotate around the first rotating rod 21 via the sliding groove 24, thereby causing the arc plate 26 to move. The arc plate 26 then drives the second rotating rod 28 to rotate via the first belt 27, thereby controlling the rotation of the second wheel. When the ratchet plate 20 reaches the end of its stroke, the ratchet 22 stops rotating. At this point, the device moves to the desired position, and the guide sleeve 7 moves towards its initial position, causing the ratchet plate 20 to move towards its initial position. The ratchet 22 does not rotate. The above steps are repeated, thus achieving a state where the device is stationary when the measuring rod 11 is measuring, and moves to the next measuring point when the measuring rod 11 is not measuring.

[0055] Please see Figure 3 ,Figure 4 , Figures 7-9 An adjustment component is disposed on the baffle 16 and connected to the one-way transmission mechanism. The adjustment component can drive the rotating component to move through the one-way transmission mechanism to adjust the speed of the second wheel. The adjustment component includes a lead screw 32 rotatably mounted on the baffle 16. A threaded sleeve 33 threadedly engaged with the lead screw 32 is movably mounted on the lead screw 32. A limiting plate 36 is fixedly sleeved on the first rotating rod 21 on the threaded sleeve 33. The adjustment component also includes a movable sleeve 34 movably mounted on the first rotating rod 21. A connecting rod 35 hinged to the movable sleeve 34 and hinged to the sliding rod 25 is connected to the movable sleeve 34. The limiting plate 36 engages with the movable sleeve 34.

[0056] To elaborate, since the spacing between different markings is different, in order to ensure that the measuring rod 11 can automatically move to the next measuring point after the measurement is completed, it is necessary to adjust the number of rotations of the second wheel. At this time, the lead screw 32 can be driven to rotate, thereby driving the threaded sleeve 33 to move. The threaded sleeve 33 will drive the movable sleeve 34 to move along the length direction of the first rotating rod 21 through the limiting plate 36, thereby driving the connecting rod 35 to move, so that the sliding rod 25 moves along the length direction of the slide groove 24, thereby changing the spacing between the arc plates 26, and changing the size of the first belt 27. The first belt 27 is made of elastic material and can contract or expand within a certain range. Under the action of the first belt 27, the number of rotations of the second wheel is adjusted.

Claims

1. A method for continuous measurement of road marking thickness, characterized in that, include: Step 1: Before measurement, take one kilometer as a test unit, and select three 100-meter sections within each test unit as test segments; Step 2: After selecting the inspection section, visually inspect to ensure that the color of the markings is uniform, the edges are neat, and the lines are regular. Step 3: Place the thickness measuring device on the road section to be tested, and clean the road section with a sweeper to ensure that the test section is not contaminated by impurities or garbage, which would lead to inaccurate measurement results. At this time, the thickness of the road markings on the selected road section is measured under the action of the thickness measuring device. Step 4: After the measurement is completed, determine whether the road markings are qualified based on the measurement data recorded by the thickness measuring equipment.

2. The method for continuous measurement of road marking thickness according to claim 1, characterized in that, The thickness measuring device includes: The bracket (1) has a through groove, and a first wheel is rotatably mounted on the bottom of the bracket (1). Fixing plates (2) are fixedly mounted on both sides of the bracket (1) in a symmetrical arrangement. A baffle (16) is also fixed on the bracket (1).

3. The method for continuous measurement of road marking thickness according to claim 2, characterized in that, The thickness measuring device also includes: A measuring rod (11) is mounted on the bracket (1). A measuring instrument (13) for measuring the thickness of the marking line is fixed to one end of the measuring rod (11) facing the bracket (1). A driving mechanism connected to the measuring rod (11) is mounted on the fixing plate (2). The driving mechanism can drive the measuring instrument (13) to reciprocate in the horizontal direction. A guide assembly is disposed on the baffle (16) and connected to the measuring rod (11). The guide assembly is capable of controlling the measuring rod (11) to move in the vertical direction when the measuring rod (11) reciprocates in the horizontal direction. The second wheel is rotatably mounted on the baffle (16) and symmetrically arranged. The baffle (16) is provided with a rotating component connected to the second wheel. The baffle (16) is also provided with a one-way transmission mechanism connected to the rotating component and the drive mechanism. The drive mechanism can drive the one-way transmission mechanism to drive the rotating component to move, so as to drive the second wheel to rotate. An adjustment component is disposed on the baffle (16) and connected to the one-way transmission mechanism. The adjustment component can drive the rotating component to move through the one-way transmission mechanism to adjust the speed of the second wheel. The driving mechanism includes a motor (3) fixedly mounted on the fixed plate (2), a transmission rod (4) rotatably mounted on the fixed plate (2) and connected to the output shaft of the motor (3), a guide groove (5) is provided on the circumferential side wall of the transmission rod (4), a guide assembly is provided on the fixed plate (2) and connected to the guide groove (5), and the guide assembly is connected to the measuring rod (11) and the one-way transmission mechanism; The guiding assembly includes a guide rod (6) fixedly mounted on the fixed plate (2), a guide sleeve (7) movably mounted on the guide rod (6), a rhomboid block (8) rotatably mounted on the guide sleeve (7) and engaging with the guide groove (5), a reciprocating structure connected to the guide sleeve (7) is provided on the bracket (1), the reciprocating structure is connected to the measuring rod (11), and the guide sleeve (7) is connected to the one-way transmission mechanism; The reciprocating structure includes a movable block (9) that is slidably installed in the through groove and fixedly connected to the guide sleeve (7). A fixed sleeve (10) is fixed at one end of the movable block (9) away from the transmission rod (4). A spring (12) is fixed inside the fixed sleeve (10). A slot is provided on the fixed sleeve (10). The measuring rod (11) is movably connected to the fixed sleeve (10) and abuts against the spring (12). The measuring rod (11) engages with the slot. The guiding assembly includes a guide rail (14) fixedly mounted on the measuring rod (11) and passing through the slot, a sliding block (15) slidably mounted in the guide rail (14), and a protrusion fixed on the sliding block (15); The rotating assembly includes a second rotating rod (28) and a third rotating rod rotatably mounted on the baffle (16). A first bevel gear (29) is fixed on the second rotating rod (28), and a second bevel gear (30) meshing with the first bevel gear (29) is fixed on the third rotating rod. A second belt (31) connected to the axle of the second wheel is sleeved on the third rotating rod. The second rotating rod (28) is connected to the one-way transmission mechanism.

4. The method for continuous measurement of road marking thickness according to claim 3, characterized in that, The guiding assembly also includes a guide groove (17) formed on the baffle (16) and engaged with the protrusion, and a first limiting rod (18) and a second limiting rod (19) are rotatably mounted on the baffle (16).

5. The method for continuous measurement of road marking thickness according to claim 4, characterized in that, The baffle (16) is fixed with a limiting block that abuts against the first limiting rod (18) and the second limiting rod (19).

6. The method for continuous measurement of road marking thickness according to claim 4, characterized in that, The one-way transmission mechanism includes a ratchet plate (20) fixedly installed on the guide sleeve (7), a first rotating rod (21) rotatably installed on the baffle (16), a ratchet wheel (22) that cooperates with the ratchet plate (20) fixed on the first rotating rod (21), a support assembly connected to the first rotating rod (21) provided on the baffle (16), and the support assembly connected to the adjustment assembly.

7. The method for continuous measurement of road marking thickness according to claim 6, characterized in that, The support assembly includes a turntable (23) fixedly mounted on the first rotating rod (21). The turntable (23) has multiple circumferentially spaced grooves (24). A sliding rod (25) connected to the adjustment assembly is slidably mounted in the grooves (24). An arc plate (26) is fixed on the sliding rod (25). A first belt (27) connected to the second rotating rod (28) is sleeved on the arc plate (26). The adjustment assembly includes a lead screw (32) rotatably mounted on the baffle (16). A threaded sleeve (33) threadedly engaged with the lead screw (32) is movably mounted on the lead screw (32). A limiting plate (36) sleeved on the first rotating rod (21) is fixed on the threaded sleeve (33).

8. The method for continuous measurement of road marking thickness according to claim 7, characterized in that, The adjustment assembly also includes a movable sleeve (34) movably mounted on the first rotating rod (21), and a connecting rod (35) hinged to the movable sleeve (34) and hinged to the sliding rod (25), and the limiting plate (36) engaging with the movable sleeve (34).

Images