Pavement marking thickness gauge

Abstract

The invention relates to the technical field of road detection, in particular to a pavement marking thickness gauge which comprises a base, a measuring device and a rotating assembly. The measuring device is installed on the base and can measure pavement marking lines in different areas along with movement of the base. The measuring device comprises a measuring head and a measuring instrument, the measuring instrument is installed on the base, and the measuring head is rotatably connected to the base, so that the measuring head can rotate relative to the base, different positions of the pavement marking can be measured by rotating the measuring head when the base is located at the same position, and the measuring error of the thickness of the pavement marking is reduced. The rotating assembly is connected to the measuring device and comprises a rotating rod, a connecting plate and a fixing ring, and the rotating rod is sleeved with the fixing ring. Wherein the connecting plate and the measuring head are rotatably connected to the rotating rod and can move up and down together along the rotating rod, and the thickness of the pavement marking is measured through the contact between the measuring head and the ground and the surface of the pavement marking from top to bottom, so that the measuring precision of the whole pavement marking thickness gauge is ensured.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of road detection, in particular to a road marking thickness gauge. BACKGROUND

[0002] Road marking is used to mark the carriageway, driving direction and pedestrian crossing to guide vehicles and pedestrians to keep their own way and avoid traffic accidents. When painting lines on the road, the thickness of the marking needs to be controlled, and the thickness of the marking directly affects the reflectivity, wear resistance and service life of the marking. Inadequate line thickness can cause the marking to lose its reflective properties or be excessively worn, affecting the normal driving of vehicles and pedestrians, and in severe cases, may even cause traffic accidents.

[0003] The existing line thickness gauge needs to move the entire line thickness gauge, reposition the line thickness gauge and reset it each time multiple points are measured, which is low in measurement efficiency, and the ground in different areas may have small height differences, affecting the measurement accuracy of the line thickness. SUMMARY

[0004] The present application is made to solve the above technical problems, and the purpose is to provide a road marking thickness gauge which can measure the thickness of road marking in different places at the same position, facilitate multiple measurements and averaging, and improve the measurement accuracy of road marking.

[0005] In order to achieve the above purpose, the present application provides a dust cover, comprising: a base; a measuring device mounted on the base, comprising a measuring head and a measuring instrument, the measuring instrument being mounted on the base, the measuring head being rotatably connected to the base; a rotating assembly connected to the measuring device, comprising a rotating rod, a connecting plate and a fixing ring, the fixing ring being sleeved on the rotating rod; wherein the connecting plate and the measuring head are rotatably connected to the rotating rod and can move up and down along the rotating rod.

[0006] Preferably, the fixing ring comprises a notch through the side wall, one end of the notch is provided as an inclined surface, and the connecting plate slides on the rotating rod along the inclined surface.

[0007] Preferably, the rotating assembly further comprises a sleeve ring, the sleeve ring is sleeved on the rotating rod and connected to the connecting plate, and the sleeve ring is located above the fixing ring.

[0008] Preferably, the connecting plate further comprises a protrusion, a connecting portion is provided between the protrusion and the sleeve ring, and the connecting portion can slide against the inclined surface.

[0009] Preferably, a rotating base is further included, connected to the rotating rod, including a groove, a first elastic member and a reset ball; wherein the first elastic member is connected to the reset ball, the groove is provided with a baffle, and the reset ball can stretch or compress the first elastic member to move in the groove.

[0010] Preferably, the measuring head includes a measuring part and an extension part, the extension part is sleeved on the rotating rod, and the inner wall of the extension part is provided with a gear slot; the outer wall of the rotating rod is provided with a connecting groove, and the connecting groove is provided with a clamping rod which can abut against the gear slot.

[0011] Preferably, the connecting groove further includes a second elastic member which abuts against the inner wall of the connecting groove and the clamping rod.

[0012] Preferably, the base includes a containing groove, and the connecting plate can move downward along the rotating rod to fall into the containing groove.

[0013] Preferably, the measuring device further includes a measuring rod connected to the connecting plate, and the measuring rod is slidingly arranged in the base.

[0014] Preferably, the base further includes a sliding groove, and the measuring rod is located in the sliding groove.

[0015] According to the above description and practice, the pavement marking thickness gauge includes a base, a measuring device and a rotating assembly. The measuring device is installed on the base and can measure pavement markings in different areas along with the movement of the base. The measuring device includes a measuring head and a measuring instrument. The measuring instrument is installed on the base, and the measuring head is rotationally connected to the base, so that the measuring head can rotate relative to the base. Thus, when the base is located at the same position, the measuring head can be rotated to measure different positions of the pavement marking, thereby reducing the measurement error of the thickness of the pavement marking. The rotating assembly is connected to the measuring device and includes a rotating rod, a connecting plate and a fixing ring. The fixing ring is sleeved on the rotating rod. The connecting plate and the measuring head are rotationally connected to the rotating rod and can move up and down along the rotating rod together. The measuring head contacts the ground and the surface of the pavement marking from top to bottom to measure the thickness of the pavement marking, thereby ensuring the measurement accuracy of the entire pavement marking thickness gauge. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 FIG. 1 is a structural schematic diagram of a pavement marking thickness gauge according to an embodiment of the present application.

[0017] Figure 2 FIG. 3 is a structural schematic diagram of a measuring head of a pavement marking thickness gauge according to an embodiment of the present application when the measuring head is rotated by 180 degrees.

[0018] Figure 3A sectional view of a road marking thickness gauge according to an embodiment of the present application.

[0019] Figure 4 A structural schematic view of a rotating assembly and measuring device of a road marking thickness gauge according to an embodiment of the present application.

[0020] Figure 5 A structural schematic view of a rotating base of a road marking thickness gauge according to an embodiment of the present application.

[0021] Figure 6 A structural schematic view of a rotating lever of a road marking thickness gauge according to an embodiment of the present application.

[0022] Figure 7 A structural schematic view of a measuring head of a road marking thickness gauge according to an embodiment of the present application.

[0023] Figure 8 A sectional view of a measuring head and a rotating lever of a road marking thickness gauge according to an embodiment of the present application.

[0024] Reference numerals in the drawings are:

[0025] 1, base 10, fixing ring 11, notch 12, first elastic member

[0026] 13, housing 14, rotating base 15, protrusion 16, recess

[0027] 17, sliding groove 2, measuring gauge 3, measuring head 31, tooth groove

[0028] 32, measuring portion 33, extension portion 4, rotating lever 41, connecting groove

[0029] 42, clamping lever 43, second elastic member 5, collar 6, measuring rod

[0030] 7, reset ball 8, connecting plate 9, accommodating groove DETAILED DESCRIPTION

[0031] Exemplary embodiments now will be described more fully hereinafter with reference to the accompanying drawings; however, this example embodiment can be implemented in many different forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the exemplary embodiments to those skilled in the art. The described features, structures, or characteristics can be combined in one or more embodiments.

[0032] In addition, the drawings are only schematic and are non-limiting. Identical reference numerals designate identical or similar parts throughout the drawings, and descriptions thereof will not be repeated. No portion of the present application can be construed as a limitation on the scope of the application except that described in the following claims. It is to be understood that the drawings are for purposes of illustrated only, and changes in shape, size and arrangement can be made to the shape, size and arrangement of the parts shown in the drawings and to the arrangement of parts in the application described and claimed without departing from the spirit and scope of the application.

[0033] Unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the relevant art and the present disclosure, and will not be interpreted in an overly literal or overly formal sense unless expressly so defined herein.

[0034] The present application provides a road marking thickness measuring instrument, please refer to Figures 1 to 8 The road marking thickness measuring instrument comprises a base 1, a measuring device and a rotating assembly. The measuring device is installed on the base 1 and can measure road markings in different areas along with the movement of the base 1. The measuring device comprises a measuring head 3 and a measuring instrument 2. The measuring instrument 2 is installed on the base 1, and the measuring head 3 is rotatably connected to the base 1, so that the measuring head 3 can rotate relative to the base 1. Thus, when the base 1 is at the same position, the measuring head 3 can be rotated to measure different positions of the road marking, thereby reducing the measurement error of the thickness of the road marking. The rotating assembly is connected to the measuring device and comprises a rotating rod 4, a connecting plate 8 and a fixing ring 10. The fixing ring 10 is sleeved on the rotating rod 4. The connecting plate 8 and the measuring head 3 are rotatably connected to the rotating rod 4 and can move up and down along the rotating rod 4. The thickness of the road marking is measured by the contact of the measuring head 3 from top to bottom with the ground and the surface of the road marking, thereby ensuring the measurement accuracy of the entire road marking thickness measuring instrument.

[0035] Specifically, in use of the road marking thickness gauge, the operator places the road marking thickness gauge at the edge of the marking and aligns it, rotates the rotating rod 4 to drive the measuring head 3 to rotate, and lifts the measuring head 3 to let the measuring head 3 automatically descend to abut against the ground under the action of its own gravity and the gravity of the connecting plate 8, at this time, the measuring instrument 2 is zeroed, and the ground is taken as the reference surface. The measuring head 3 is lifted again, and the measuring head 3 is continuously rotated so that the projection of the measuring head 3 falls within the road marking, and the measuring head 3 automatically descends until the top of the road marking is abutted, one thickness measurement is completed, the data of the measuring instrument 2 is read and recorded. The measuring head 3 can be continuously rotated according to actual needs, and the average value of multiple measurement results is taken as the thickness value of the road marking, which avoids the need to move the entire road marking thickness gauge multiple times when multiple measurements are needed, and each time after moving, the zero calibration is needed, thereby improving the efficiency and accuracy of the road marking thickness measurement.

[0036] It can be understood that, in order to further improve the measurement accuracy of the entire road marking thickness gauge, in some embodiments, the fixing ring 10 comprises a through side wall notch 11, one end of the notch 11 is provided as a slope, and the connecting plate 8 slides on the slope on the rotating rod 4, which ensures that when the measuring head 3 moves downward, the connecting plate 8 can slowly move downward along the slope, on the one hand, it can avoid that when calibrating or measuring, the measuring head 3 moves downward too fast, causing the measuring head 3 to collide with the ground or the road marking, and damaging the entire road marking thickness gauge; on the other hand, it can more accurately confirm the contact position of the measuring head 3 and the road marking by slowly moving, further improving the measurement accuracy of the measuring head 3 on the road marking thickness.

[0037] In order to ensure that the connecting plate 8 can move up and down and the measuring head 3 can rotate simultaneously when the rotating rod 4 is rotated, in some embodiments, the rotating assembly further comprises a sleeve ring 5, the sleeve ring 5 is sleeved on the rotating rod 4 and connected to the connecting plate 8, and the sleeve ring 5 is located above the fixing ring 10. When the rotating rod 4 is rotated, the rotating rod 4 and the sleeve ring 5 rotate relatively, and the sleeve ring 5 rises with the measuring head 3, which ensures that the connecting plate 8 can always be in a relatively fixed position when the measuring head 3 and the fixing ring 10 rotate, avoiding that the connecting plate 8 and the fixing ring 10 rotate relatively when the measuring head 3 descends, and the connecting plate 8 cannot contact the slope, which affects the measurement. When the rotating rod 4 is rotated to a certain position, the measuring head 3 is located above the road marking, the slope of the fixing ring 10 is located below the sleeve ring 5 and the connecting plate 8, and when the measuring head 3 descends under the action of its own gravity and the gravity of the connecting plate 8, the sleeve ring 5 descends with the measuring head 3 and makes the bottom surface of the connecting plate 8 contact the slope of the fixing ring 10, and moves downward along the slope under the action of gravity until the bottom end of the measuring head 3 contacts the ground or the surface of the road marking.

[0038] Further, in order to limit the contact position between the connecting plate 8 and the fixing ring 10, in some embodiments, the connecting plate 8 further comprises a protrusion 15, and a connecting part is arranged between the protrusion 15 and the sleeve 5, the connecting part can abut against the inclined surface and slide, the position of the contact between the connecting plate 8 and the fixing ring 10 is further limited by the protrusion 15, so as to avoid that the connecting plate 8 is pushed during the contact process and thus is separated from the inclined surface of the fixing ring 10, which affects the descending speed of the measuring head 3 or causes damage to the measuring head 3.

[0039] Further, in order to improve the measuring efficiency of the entire road marking thickness gauge, in some embodiments, the road marking thickness gauge further comprises a rotating base 14 connected to the rotating rod 4, when the rotating rod 4 is rotated, the rotating base 14 rotates relative to the rotating rod 4, the rotating base 14 comprises a groove 16, a first elastic member 12 and a reset ball 7, the first elastic member 12 is connected to the reset ball 7, the groove 16 is provided with a baffle, the reset ball 7 can move in the groove 16 by stretching or compressing the first elastic member 12, the reset ball 7 moves in the groove 16 along with the rotation of the rotating rod 4, when the road marking thickness gauge is used to measure the thickness of the road marking, the rotating rod 4 is rotated, the reset ball 7 moves in the groove 16 and stretches the first elastic member 12. After completing a measurement, the first elastic member 12 restores the deformation, the reset ball 7 moves to the initial position and drives the rotating rod 4 to rotate back, after completing the measurement, the road marking thickness gauge can be restored to the original position by the first elastic member 12, without the need for manual reset, which further improves the measuring accuracy of the road marking thickness gauge.

[0040] It can be understood that, when the rotating rod 4 has driven the fixing ring 10 to a certain position, in order to be able to measure the thickness of the road marking at other positions without changing the position of the fixing ring 10, in some embodiments, the measuring head 3 comprises a measuring part 32 and an extension part 33, the measuring part 32 is used to contact the ground and the road marking, the extension part 33 is sleeved on the rotating rod 4, so as to ensure that the measuring part 32 can rotate synchronously with the rotating rod 4. The inner wall of the extension part 33 is provided with a tooth groove 31, the outer wall of the rotating rod 4 is provided with a connecting groove 41, the connecting groove 41 is provided with a clamping rod 42, the clamping rod 42 can extend to abut against the tooth groove 31, so as to ensure that the rotating rod 4 and the measuring head 3 do not rotate relative to each other when the measuring head 3 is lowered to measure the thickness of the road marking, which affects the measuring accuracy of the road marking thickness gauge. Further, when it is necessary to rotate the measuring head 3 to measure the thickness of the road marking at different positions, the clamping rod 42 is retracted into the connecting groove 41, the measuring head 3 can be rotated alone, when the measuring head 3 is rotated to a certain angle, the clamping rod 42 extends from the connecting groove 41 to clamp and fix the measuring head 3 and the rotating rod 4, and the next thickness measurement of the road marking is performed.

[0041] Further, in some embodiments, the connecting groove 41 further comprises a second elastic member 43, which abuts against the inner wall of the connecting groove 41 and the clamping rod 42. When the relative rotation between the measuring head 3 and the rotating rod 4 occurs, the second elastic member 43 is compressed into the connecting groove 41 under the abutting force of the tooth groove 31, and after the measuring head 3 reaches the required angle, the second elastic member 43 restores the deformation to extend the clamping rod 42 out of the connecting groove 41 to abut against the tooth groove 31, so as to clamp and fix the measuring head 3 and the rotating rod 4, which further ensures the measurement accuracy of the road marking thickness gauge.

[0042] In some embodiments, the base 1 further comprises a containing groove 9, and the connecting plate 8 can be moved downward along the rotating rod 4 to fall into the containing groove 9, that is, when the road marking thickness gauge is not in use, the connecting plate 8 is located in the base 1, which further reduces the size of the road marking thickness gauge. Meanwhile, by arranging the containing groove 9, the connecting plate 8 can always move in the base 1 when the measuring head 3 moves up and down, so as to avoid the connecting plate 8 being damaged when the road marking thickness gauge is subjected to external force, which further affects the measurement accuracy of the measuring head 3.

[0043] It can be understood that, in some embodiments, the measuring device further comprises a measuring rod 6, which is connected to the connecting plate 8 and rotationally arranged in the base 1. On the one hand, the measuring rod 6 is used to ensure the balance of the measuring head 3 and the measuring instrument 2 when the road marking thickness gauge measures the thickness of the road marking, which further ensures the stability of the entire road marking thickness gauge. On the other hand, the measuring rod 6 contacts the measuring instrument 2, and when the measuring head 3 descends due to its own gravity, the measuring instrument 2 determines the descending distance of the measuring head by the position change amount of the measuring rod 6, thereby completing the measurement of the thickness of the road marking.

[0044] It can be understood that, in some embodiments, the base 1 further comprises a sliding groove 13, and the measuring rod is located in the sliding groove 13. When the measuring head 3 descends due to its own gravity, the connecting plate 8 drives the measuring rod to move in the sliding groove 13 towards the rotating rod 4, and the measuring instrument 2 can determine and read the descending distance of the measuring head 3 by the position of the measuring rod, so as to measure the thickness of the road marking.

[0045] It is apparent for those skilled in the art that the present application is not limited to the details of the foregoing exemplary embodiments, but can be implemented in other concrete forms without departing from the spirit or essential characteristics of the present application. Therefore, the embodiments should be considered as exemplary and non-limiting, and the scope of the present application is defined by the appended claims rather than the foregoing description, and all changes falling within the meaning and range of the equivalent elements of the claims are intended to be embraced in the present application. Any reference signs in the claims should not be considered as limiting the claims involved.

Claims

1. A pavement marking thickness gauge, characterized by, The road marking thickness gauge comprises a base, a measuring device mounted on the base, a rotating assembly connected to the measuring device, and a rotating base connected to the rotating assembly. The measuring device comprises a measuring head and a measuring instrument, the measuring instrument is mounted on the base, and the measuring head is rotatably connected to the base. The rotating assembly comprises a rotating rod, a connecting plate, and a fixing ring, and the fixing ring is sleeved on the rotating rod. The connecting plate and the measuring head are rotatably connected to the rotating rod and can move up and down along the rotating rod.

2. The road marking thickness gauge according to claim 1, wherein the fixing ring comprises a notch penetrating through the side wall, one end of the notch is provided as a slope, and the connecting plate slides along the slope on the rotating rod.

3. The road marking thickness gauge according to claim 2, wherein the rotating assembly further comprises a sleeve ring, the sleeve ring is sleeved on the rotating rod and connected to the connecting plate, and the sleeve ring is located above the fixing ring.

4. The road marking thickness gauge according to claim 3, wherein the connecting plate further comprises a protrusion, a connecting part is arranged between the protrusion and the sleeve ring, and the connecting part can slide against the slope. The rotating base comprises a groove, a first elastic member, and a reset ball. The first elastic member is connected to the reset ball, the groove is provided with a baffle, and the reset ball can move in the groove by stretching or compressing the first elastic member.

6. The road marking thickness gauge according to claim 5, wherein the measuring head comprises a measuring part and an extension part, the extension part is sleeved on the rotating rod, and the inner wall of the extension part is provided with a tooth groove. The outer wall of the rotating rod is provided with a connecting groove, the connecting groove is provided with a clamping rod, and the clamping rod can extend to abut against the tooth groove.

5. The pavement marker thickness gauge of claim 1, wherein, 7. The road marking thickness gauge according to claim 6, wherein the connecting groove further comprises a second elastic member, and the second elastic member abuts against the inner wall of the connecting groove and the clamping rod.

8. The road marking thickness gauge according to claim 1, wherein the base comprises a containing groove, and the connecting plate can move downward along the rotating rod to fall into the containing groove.

9. The road marking thickness gauge according to claim 1, wherein the measuring device further comprises a measuring rod, the measuring rod is connected to the connecting plate, and the measuring rod is slidingly arranged in the base.

10. The road marking thickness gauge according to claim 9, wherein the base further comprises a sliding groove, and the measuring rod is located in the sliding groove. ​ ​ ​ ​ ​ ​ ​ ​ ​ ​

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