CN210766289U - Portable high-efficient type road surface crack width tester - Google Patents
Portable high-efficient type road surface crack width tester Download PDFInfo
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- CN210766289U CN210766289U CN201921493445.2U CN201921493445U CN210766289U CN 210766289 U CN210766289 U CN 210766289U CN 201921493445 U CN201921493445 U CN 201921493445U CN 210766289 U CN210766289 U CN 210766289U
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Abstract
The utility model relates to a portable high-efficient type road surface crack width tester, including measuring mechanism and measurement adjustment mechanism, measuring mechanism comprises a measuring stick and two limiting plates that symmetry set up in on the measuring stick intermediate position, mark corresponding scale mark on the leading flank of measuring stick, the rigid coupling has two parallel arrangement's direction slide rail on the up end of measuring stick and the trailing flank respectively, the limiting plate is in on the measuring stick through its guide way that is equipped with and direction slide rail cooperation movable device respectively, the bottom surface of limiting plate with the bottom surface of measuring stick is on same height, the front end of limiting plate is turned over downwards and is set up to the slope form with the leading flank cooperation of measuring stick; the measuring and adjusting mechanism comprises an adjusting rod movably arranged between the two limiting plates in a penetrating mode, and the bottom of the adjusting rod is arranged in a conical shape. The utility model discloses can effectively improve the precision of road surface crack width measurement value.
Description
Technical Field
The utility model relates to a crack width tester specifically indicates a portable high-efficient type road surface crack width tester.
Background
In the existing 'evaluation standard of road technical conditions', the damage of asphalt pavement is divided into 21 items in 11 types, 9 items related to cracks, the damage of cement concrete pavement is divided into 20 items in 11 types, and 6 items related to cracks, and the number and the size of the cracks determine the service performance of the pavement to a certain extent and also determine the maintenance decision to a certain extent. The traditional method for measuring the width of the pavement crack is directly used for on-site measurement through a tape measure or a tape measure, so that the measurement precision is low, the influence factors caused by manual operation in the whole measurement process are large, the precision is extremely uncontrollable, and the method is not adopted at present.
The existing pavement crack width measuring devices mainly comprise two types. One is that the measuring mechanism is supported by the frame, and the measuring mechanism is mainly movably arranged on the frame by the position control adjusting mechanism, and in the measuring process, the reading is effectively formed after the measuring mechanism is displaced and positioned, and the result can be obtained after calculation. Such a pavement crack width measuring device is not only complex in structure, but also inconvenient to use, and most importantly, it is difficult to ensure that the distance corresponding to the measuring mechanism is the transverse width of the crack, and once the distance corresponding to the measuring mechanism and the transverse direction of the crack have an angle deviation, the detected numerical value is large, so that the detection result is inaccurate. In the other method, the width of the crack is directly measured through a lens barrel with an ocular lens and an objective lens, and the reading is directly carried out in a mode that a scale line arranged on the ocular lens is aligned with the crack. Firstly, a large distance exists between the scale marks and the pavement cracks, when the measurement reading is carried out, different measurement results with large difference can be obtained due to different observation angles, and most importantly, the pavement crack width measurement device is the same as the first measurement device, so that the distance corresponding to the scale marks is difficult to ensure the transverse width of the cracks, and the detected numerical value is large as long as the angle deviation exists between the distance corresponding to the scale marks and the transverse direction of the cracks.
Consequently, design a structure is simple and easy, and it is convenient to measure operation process, and can ensure to measure interval and fissured transverse width unanimous each other to effectively improve measurement accuracy's portable high-efficient type road surface crack width tester is the utility model discloses a research purpose.
Disclosure of Invention
To the problem that above-mentioned prior art exists, the utility model provides a portable high-efficient type road surface crack width tester, this portable high-efficient type road surface crack width tester can effectively solve the problem that above-mentioned prior art exists.
The technical scheme of the utility model is that:
a portable high-efficiency pavement crack width tester, which comprises a measuring mechanism and a measuring and adjusting mechanism, the measuring mechanism consists of a measuring rod and two limiting plates symmetrically arranged at the middle position of the measuring rod, the front side surface of the measuring rod is arranged into an upward inclined plane shape, and the front side surface of the measuring rod is marked with corresponding scale marks, the upper end surface and the rear side surface of the measuring rod are respectively and integrally fixedly connected with two guide slide rails which are arranged in parallel, the bottom of the front side of the limit plate is provided with a corresponding clamping groove, the upper side wall and the rear side wall of the clamping groove are respectively provided with a corresponding guide groove, the limiting plates are respectively matched with the guide slide rails through guide grooves arranged on the limiting plates and are movably arranged on the measuring rod, the bottom surface of the limiting plate and the bottom surface of the measuring rod are at the same height, and the front end of the limiting plate is downwards turned and arranged into an inclined shape matched with the front side surface of the measuring rod; two corresponding positioning plates are fixedly connected to the two sides of the measuring rod backwards respectively, corresponding guide pipes are fixedly connected to the inner sides of the positioning plates respectively, guide shafts which are movably sleeved on the corresponding guide pipes are fixedly connected to the outer sides of the limiting plates respectively, and corresponding limiting springs are arranged between the bottoms of the guide shafts and the bottoms of the guide pipes respectively; the measuring and adjusting mechanism comprises an adjusting rod movably arranged between the two limiting plates in a penetrating mode, and the bottom of the adjusting rod is arranged in a conical shape.
The front side surface of the measuring rod is marked with corresponding scale marks, and the scale marks take the middle point of the measuring rod as zero scale and extend and mark towards two sides symmetrically.
The top of the adjusting rod is fixedly connected with a corresponding handle, and a corresponding rubber layer is sleeved on the handle.
The cross section of the guide sliding rail is arranged to be in an inverted trapezoid shape.
The folded part of the limiting plate is arranged to be triangular and pointed.
The utility model has the advantages that:
the utility model discloses a limiting plate cooperates the movable device on the measuring stick through its guide way and direction slide rail that is equipped with respectively, and the bottom surface of limiting plate and the bottom surface of measuring stick are on same height, and the front end of limiting plate is rolled over downwards and is set to the leading flank complex slope form with the measuring stick. During the measurement, directly arrange the measuring stick in the road surface crack on, then handheld regulation pole penetrates its bottom along between two limiting plates, along with the deepening of adjusting the pole, two limiting plates are adjusted the pole extrusion and are removed to the both sides of measuring stick, when the bottom of adjusting the pole is blocked by the road surface crack, realize three point contact between regulation pole and crack both sides and two limiting plates, thereby realize the location parallel with two limiting plates at the cracked both sides top of road surface, regardless of the locating position of measuring stick how, can both effectively the cracked transverse width of accurate measurement. And the front ends of the two limiting plates are matched with the scale marks on the front side surface of the measuring rod, so that the corresponding measured value can be obtained quickly. The measuring device has the advantages of simple structure, convenient measurement and operation process, capability of ensuring that the measuring distance is consistent with the transverse width of the crack, and effective improvement on the measuring precision.
The utility model discloses a scale mark is zero scale with the intermediate point of measuring stick to bilateral symmetry extension mark. In the testing process, two limiting plates are adjusted the pole extrusion and are removed to the both sides of measuring stick, read out behind the distance numerical value of measuring stick both sides, directly add and can reach the measured value of road surface crack width fast, further improve the utility model discloses a convenient degree of use, and can effectively reduce the probability that the calculation was made mistakes.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a measurement use state diagram of the present invention.
Fig. 3 shows a measuring use state diagram when the position of the measuring rod is changed.
Fig. 4 is a schematic structural view of three-point contact between the adjusting rod and the crack and the limiting plate.
Fig. 5 is a schematic structural view of a limiting spring arranged between the guide shaft and the guide pipe.
Fig. 6 is a schematic view of the structure of the measuring rod.
Fig. 7 is a schematic structural diagram of the limiting plate.
Fig. 8 is a schematic structural view of the adjustment lever.
Detailed Description
To facilitate understanding of those skilled in the art, the structure of the present invention will now be described in further detail with reference to the following examples:
referring to fig. 1-8, a portable high-efficiency pavement crack width tester comprises a measuring mechanism 1 and a measuring and adjusting mechanism, wherein the measuring mechanism 1 is composed of a measuring rod 101 and two limiting plates 102 symmetrically arranged at the middle position of the measuring rod 101, the front side surface of the measuring rod 101 is arranged in an upward inclined plane shape, corresponding scale marks (length distance scale marks) are marked on the front side surface of the measuring rod 101, the upper end surface and the rear side surface of the measuring rod 101 are respectively and integrally and fixedly connected with two guide slide rails 3 arranged in parallel, the bottom of the front side of the limiting plate 102 is provided with a corresponding clamping groove, the upper side wall and the rear side wall of the clamping groove are respectively provided with a corresponding guide groove 4, the limiting plate 102 is respectively matched with the guide slide rails 3 through the guide grooves 4 arranged on the limiting rod 101, the bottom surface of the limiting plate 102 and the bottom surface of the measuring rod 101 are at the same height, and the front end of the limiting plate 102 is turned downwards to be arranged in an inclined shape matched with the front side surface of the measuring rod 101; two corresponding positioning plates 5 are fixedly connected to the two sides of the measuring rod 101 backwards respectively, corresponding guide pipes 6 are fixedly connected to the inner sides of the positioning plates 5 respectively, guide shafts 7 movably sleeved on the corresponding guide pipes 6 are fixedly connected to the outer sides of the limiting plates 102 respectively, and corresponding limiting springs 8 are arranged between the bottoms of the guide shafts 7 and the bottoms of the guide pipes 6 respectively; the measuring and adjusting mechanism comprises an adjusting rod 2 movably arranged between the two limiting plates 102 in a penetrating mode, and the bottom of the adjusting rod 2 is arranged in a conical shape.
The front side surface of the measuring rod 101 is marked with corresponding scale marks, and the scale marks take the middle point of the measuring rod 101 as a zero scale and symmetrically extend and mark towards two sides. The top of the adjusting rod 2 is fixedly connected with a corresponding handle, and a layer of corresponding rubber layer 9 is sleeved on the handle. The cross section of the guide slide rail 3 is arranged into an inverted trapezoid shape. The folded part of the limiting plate 102 is arranged in a triangular pointed shape.
The utility model discloses the process of carrying out road surface crack width detection as follows:
1) the measuring rod 101 is placed on the pavement crack 10, then the adjusting rod 2 is held by hands to penetrate the bottom of the adjusting rod along the space between the two limiting plates 102, and the two limiting plates 102 are extruded by the adjusting rod 2 to move towards the two sides of the measuring rod 101 along with the depth of the adjusting rod 2;
2) when the bottom of the adjusting rod 2 is blocked by the pavement crack 10, three-point contact is realized between the adjusting rod 2 and two sides of the crack 10 and between the two limiting plates 102, so that the two limiting plates 102 are positioned at the top ends of the two sides of the pavement crack in parallel, and the transverse width of the crack 10 is effectively and accurately measured;
3) the front ends of the two limiting plates 102 are matched with the scale marks on the front side surface of the measuring rod 101, so that the numerical value of the limiting plate 102 is read;
4) after the distance values at the two sides of the measuring rod 102 are read out, the measured values at the two sides of the measuring rod 102 are directly added to obtain the measured value of the width of the pavement crack 10.
The measuring device has the advantages of simple structure, convenient measurement and operation process, capability of ensuring that the measuring distance is consistent with the transverse width of the crack, and effective improvement on the measuring precision.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (5)
1. The utility model provides a portable high-efficient type road surface crack width tester, includes measuring mechanism and measurement adjustment mechanism, its characterized in that: the measuring mechanism is composed of a measuring rod and two limiting plates symmetrically arranged at the middle position of the measuring rod, the front side surface of the measuring rod is arranged in an upward inclined plane shape, corresponding scale marks are marked on the front side surface of the measuring rod, two guide slide rails arranged in parallel are fixedly connected to the upper end surface and the rear side surface of the measuring rod in an integrated mode respectively, the bottom of the front side of each limiting plate is provided with a corresponding clamping groove, corresponding guide grooves are formed in the upper side wall and the rear side wall of each clamping groove respectively, the limiting plates are matched with the guide slide rails through the guide grooves arranged on the limiting plates respectively and are movably arranged on the measuring rod, the bottom surface of each limiting plate and the bottom surface of the measuring rod are at the same height, and the front ends of the limiting plates are turned downwards to be arranged in an inclined shape matched with the front side surface of the measuring rod; two corresponding positioning plates are fixedly connected to the two sides of the measuring rod backwards respectively, corresponding guide pipes are fixedly connected to the inner sides of the positioning plates respectively, guide shafts which are movably sleeved on the corresponding guide pipes are fixedly connected to the outer sides of the limiting plates respectively, and corresponding limiting springs are arranged between the bottoms of the guide shafts and the bottoms of the guide pipes respectively; the measuring and adjusting mechanism comprises an adjusting rod movably arranged between the two limiting plates in a penetrating mode, and the bottom of the adjusting rod is arranged in a conical shape.
2. The portable high-efficiency pavement crack width tester as claimed in claim 1, characterized in that: the front side surface of the measuring rod is marked with corresponding scale marks, and the scale marks take the middle point of the measuring rod as zero scale and extend and mark towards two sides symmetrically.
3. The portable high-efficiency pavement crack width tester as claimed in claim 1, characterized in that: the top of the adjusting rod is fixedly connected with a corresponding handle, and a corresponding rubber layer is sleeved on the handle.
4. The portable high-efficiency pavement crack width tester as claimed in claim 1, characterized in that: the cross section of the guide sliding rail is arranged to be in an inverted trapezoid shape.
5. The portable high-efficiency pavement crack width tester as claimed in claim 1, characterized in that: the folded part of the limiting plate is arranged to be triangular and pointed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921493445.2U CN210766289U (en) | 2019-09-09 | 2019-09-09 | Portable high-efficient type road surface crack width tester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921493445.2U CN210766289U (en) | 2019-09-09 | 2019-09-09 | Portable high-efficient type road surface crack width tester |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210766289U true CN210766289U (en) | 2020-06-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921493445.2U Active CN210766289U (en) | 2019-09-09 | 2019-09-09 | Portable high-efficient type road surface crack width tester |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210766289U (en) |
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2019
- 2019-09-09 CN CN201921493445.2U patent/CN210766289U/en active Active
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