CN110715592A

CN110715592A - Measuring tool for hot asphalt virtual paving thickness

Info

Publication number: CN110715592A
Application number: CN201911134135.6A
Authority: CN
Inventors: 张�浩; 肖世新; 李万鹏; 冉景飞; 魏强
Original assignee: China 22MCC Group Corp Ltd
Current assignee: China 22MCC Group Corp Ltd
Priority date: 2019-11-19
Filing date: 2019-11-19
Publication date: 2020-01-21

Abstract

The invention provides a measuring tool for the virtual paving thickness of hot asphalt, which comprises a probe rod, a probe, a sliding sleeve and a supporting leg, wherein the probe is in butt joint with the bottom end of the probe rod, and the probe rod and the probe are of an integrated structure; the bottom of the sleeve is fixedly connected with a supporting leg; the probe rod penetrates through the sleeve and can move in the sleeve in a reciprocating manner; an elastic supporting body is arranged between the top of the probe rod and the sleeve, and the bottom end of the probe and the bottom end of the supporting leg are simultaneously contacted with the ground under the condition that the elastic supporting body has no external force; the probe is directly inserted into hot asphalt, and the scale on the upper part of the probe reflects the sinking depth of the probe. The reading position is improved, the reading of operators is facilitated, the tool is high in reading value preparation and measuring speed, and workers can finish measurement quickly and leave the site, so that the influence of asphalt on health is reduced.

Description

Measuring tool for hot asphalt virtual paving thickness

Technical Field

The invention relates to a measuring tool for road hot asphalt paving construction, in particular to a measuring tool for the virtual pavement thickness of hot asphalt.

Background

In the road asphalt construction process at the present stage, when the asphalt virtual pavement thickness is checked, a tester needs to squat and kneel, and uses a ruler or a steel tape measure to measure the asphalt virtual pavement section or dig out the hot asphalt at the detection point for measurement, and the tester is often influenced by the heated asphalt temperature and the pungent smell in the measurement process. Such detection tools and detection methods often present the following problems:

1) the detection personnel receives the influence such as squatting posture, pitch high temperature, pungent smell, and the head can not paste the ground, and the sight can not be with pitch surface parallel and level, produces the visual angle, leads to the reading to have great error.

2) The asphalt bottom of the excavated detection point is not easy to clean, asphalt crushed aggregates and the like are easily mixed between the end of the ruler or the steel tape and the subbase layer, so that the measurement data is wrong, the surface flatness of the paved asphalt is expanded by an excavation and backfilling monitoring point damage mechanism,

3) the hot asphalt has high temperature and large volatilization concentration of toxic odor, seriously influences the detection will and the human health of detection personnel, and can cause the hidden troubles of less detection points, inaccurate data source and the like.

Disclosure of Invention

The invention aims to solve the technical problems that the virtual pavement thickness of hot asphalt is difficult to measure, the measurement accuracy is low, the detection of the harm of the hot asphalt to the health of workers is difficult and the like in the paving process of the hot asphalt in the existing road construction.

In order to solve the technical problems, the invention particularly provides a measuring tool which has high measuring speed, is ready for reading and does not need to squat and kneel for detection, and the specific technical scheme is as follows:

a measuring tool for the virtual paving thickness of hot asphalt comprises a probe rod, a probe, a sliding sleeve and a supporting foot, wherein the probe is in butt joint with the bottom end of the probe rod, and the probe rod and the probe are of an integrated structure; the bottom of the sleeve is fixedly connected with a supporting leg; the probe rod penetrates through the sleeve and can move in the sleeve in a reciprocating manner; an elastic supporting body is arranged between the top of the probe rod and the sleeve, and the bottom end of the probe and the bottom end of the supporting leg are simultaneously contacted with the ground under the condition that the elastic supporting body has no external force; the surface of the probe rod is provided with scales, the top end of the sleeve corresponds to 0 point of the scales, and the scales are read upwards by the 0 point.

The probe of the invention is directly inserted into hot asphalt, and the scale on the upper part of the probe rod reflects the sinking depth of the probe. The reading position is improved, the reading of operators is facilitated, the tool is high in reading value preparation and measuring speed, and workers can finish measurement quickly and leave the site, so that the influence of asphalt on health is reduced.

Preferably, the upper part of the probe rod exposed outside the sleeve is provided with an upper limiting plate, and the support body and the scales are arranged below the upper limiting plate; the lower part of the probe rod exposed outside the sleeve is provided with a lower limit plate.

Preferably, the elastic support is a spring.

Preferably, the supporting foot comprises four supporting columns, the four supporting columns are uniformly and fixedly connected to the sleeve, and the bottom of each supporting column is provided with a flaky sounding bearing end. The contact area between the penetration probe bearing end and the asphalt layer can be increased, the average height of the surface of the asphalt layer at the detection point position is favorably averaged, and the asphalt at the detection point position is not compacted and sunk or a supporting foot penetrates into the asphalt layer due to the overlarge pressure.

Preferably, the scale starts at 0 and goes up to 200 mm. The paving thickness of the asphalt is generally 150-200mm, and the measurement requirement is met in the time range.

Preferably, the probe rod is gone up in addition and is had the altitude mixture correction structure, the altitude mixture correction structure sets up below limiting plate down, including last connecting rod, lower connecting rod, goes up the connecting rod bottom and is equipped with the external screw thread, and lower connecting rod top system has one section internal thread chamber and top rigid coupling locking round pin. The height correction structure ensures that the position of the probe tip to the 0 point of the probe rod is equal to the total height of the sleeve and the supporting foot, namely the 0 point is ensured to correspond to the vertex of the sleeve.

Drawings

FIG. 1 shows the overall structure of the tool;

FIG. 2 shows a probe and sleeve mounting structure

FIG. 3 is a top view of the sleeve and arm brace integrated configuration;

FIG. 4 is a height correction structure;

fig. 5 is a state diagram of the tool in use.

Handle 1, probe rod 2, elastic support body 3, sliding sleeve 4, spike 5, probe 6, probing end 7, upper connecting rod 8, lower connecting rod 9, lock pin 10, pin 11.

Detailed Description

The invention relates to a special tool for detecting the paving thickness of asphalt, which is a tool for detecting the virtual paving thickness of the asphalt, and the specific scheme is as follows:

a measuring tool for the virtual paving thickness of hot asphalt comprises a probe rod 2, a probe 6, a sliding sleeve 4 and a supporting foot 5, wherein the probe 6 is in butt joint with the bottom end of the probe rod 2, and the probe rod 2 and the probe 6 are of an integral structure; the bottom of the sleeve 4 is fixedly connected with a supporting leg 5; the probe rod 2 penetrates through the sleeve 4, and the probe rod 2 can move in the sleeve 4 in a reciprocating manner; an elastic support body 3 is arranged between the top of the probe rod 2 and the sleeve 4, and the bottom end of the probe 6 and the bottom end of the supporting foot 5 are simultaneously contacted with the ground under the condition that the elastic support body 3 has no external force; the surface of the probe rod 2 is provided with scales, the top end of the sleeve 4 corresponds to 0 point of the scales, and the scales are read upwards by the 0 point.

In the scheme, the probe 6 is of a slender structure with a tip, so that slurry hanging is reduced, and the probe is easy to clean. The position of the scale can be designed to be convenient for a worker to observe, and can be in a head-up height.

The invention is further described with reference to the following specific examples and the accompanying drawings.

The measuring tool in this example is shaped like a crutch, the top is provided with a grip 1, and the grip 1 is in an inverted L shape. The handle 1 is arranged at the top of the probe rod 2, the probe rod 2 is a straight round steel, the bottom end of the straight round steel is in butt joint with the probe 6, and the straight round steel and the probe are fixedly connected into a whole. The upper part of the probe rod 2 is provided with an upper limit plate 21, and the lower part is provided with a lower limit plate 22. The probe rod 2 is sleeved in a sleeve 4, the sleeve 4 is fixedly connected with a supporting foot 5 into a whole, the supporting foot 5 in the embodiment is composed of four supporting columns, the four supporting columns are uniformly and fixedly connected on the sleeve 4, and the bottom of each supporting column is provided with a sheet-shaped sounding bearing end 7. The elastic supporting body 3 is a spring, and is installed between the upper limiting plate 21 and the sleeve 4, namely, is sleeved on the part of the probe rod 2 provided with scales.

The scale of the surface of the probe rod is arranged below the upper limiting plate 21. The 0 point of the scale corresponds to the apex of the sleeve, and the scale starts reading upwards at 0. The paving thickness of the asphalt is generally 150-200 mm. Therefore, the scale starts at 0 and goes up to 200mm to meet the measurement requirement.

Specifically, the length of the probe 6 is set to 200 mm. The length of the probe 2 is 510 mm. The length of the sliding sleeve 4 is 200mm, and the length of the grip 1 is 200 mm.

Before using the measuring tool, the probe tip and the sounding end are checked to be flush, namely, the probe tip is ensured to be equal to the total height of the sleeve and the supporting foot from the position of 0 point of the probe rod. The invention also provides a height correction structure which is arranged below the lower limit plate 22 and comprises an upper connecting rod 8 and a lower connecting rod 9, wherein the bottom of the upper connecting rod 8 is provided with an external thread, the top of the lower connecting rod 9 is provided with a section of internal thread, and the top end of the lower connecting rod 9 is fixedly connected with a locking pin 10. The lower connecting rod 9 is in threaded connection with the upper connecting rod 8 and is fixed through a locking pin 10. The locking pin 10 is shown in fig. 4 and is a long nut structure having a pin hole for receiving the pin 11. The pin 11 is used for fixing the upper connecting rod and the lower connecting rod. This altitude correction structure plays the purpose of reducing the probe tip when there is wearing and tearing probe bottom, guarantees probe lower extreme and spike contact pitch surface simultaneously, guarantees probe tip to 0 some distance reaction scale 0 point to pitch surface distance of scale. The length of the correction structure does not need to be too large, the adjustment range of 3-5 cm is enough to achieve the purpose, and when the probe tip is reduced too much, the probe tip can be directly replaced without being adjusted through the structure.

Four support columns of this instrument are the reinforcing bar preparation of diameter 5mm, and the sounding holding end is the circular iron sheet of level welding, circular iron sheet 40 mm. Furthermore, the four sheet-shaped penetration probe bearing ends are connected with each other through the annular reinforcing ribs, so that the stability of the bottom of the tool is guaranteed, and the tool is not easy to deform. The probe within range does not set up sliding sleeve, is for preventing that the asphalt layer oil from getting into between sliding sleeve and the probe rod, takes place to bond.

When the tool is used, the supporting foot seat of the tool is flatly arranged on the surface layer of the asphalt layer, the top of the probe rod is pressed, the probe is rapidly inserted into the bottom of the asphalt layer by force, the probe rod moves downwards relative to the sleeve in the inserting process, and the corresponding scale value of the top end of the sleeve is the virtual paving thickness of the asphalt layer. When the sleeve is pulled out, the sleeve rebounds to the 0 position under the telescopic force of the spring, and then the position is changed to carry out inspection and measurement.

The invention is particularly suitable for the construction of the current road asphalt layer, enables detection personnel to conveniently and quickly carry out detection and measurement, does not damage the flatness of the paved asphalt surface of a mechanism, has low manufacturing cost, and can be popularized and used in the measurement construction of grading and water stabilization layers. Greatly improving the working efficiency.

Claims

1. A measuring tool for the virtual paving thickness of hot asphalt is characterized in that: the probe comprises a probe rod, a probe, a sliding sleeve and a supporting leg, wherein the probe is in butt joint with the bottom end of the probe rod, and the probe rod and the probe are of an integrated structure; the bottom of the sleeve is fixedly connected with a supporting leg; the probe rod penetrates through the sleeve and can move in the sleeve in a reciprocating manner; an elastic supporting body is arranged between the top of the probe rod and the sleeve, and the bottom end of the probe and the bottom end of the supporting leg are simultaneously contacted with the ground under the condition that the elastic supporting body has no external force; the surface of the probe rod is provided with scales, the top end of the sleeve corresponds to 0 point of the scales, and the scales are read upwards by the 0 point.

2. A tool for measuring the virtual pavement thickness of hot asphalt as claimed in claim 1, wherein: the upper part of the probe rod exposed outside the sleeve is provided with an upper limiting plate, and the elastic support body and the scales are arranged below the upper limiting plate; the lower part of the probe rod exposed outside the sleeve is provided with a lower limit plate.

3. A tool for measuring the virtual pavement thickness of hot asphalt as claimed in claim 2, wherein: the elastic supporting body is a spring.

4. A tool for measuring the virtual pavement thickness of hot asphalt as claimed in claim 1, wherein: the arm brace comprises four support columns, and four even rigid couplings of support column are on the sleeve, and every support column bottom is equipped with flaky sounding holding end.

5. A tool for measuring the virtual pavement thickness of hot asphalt as claimed in claim 1, wherein: the scale starts at 0 and goes up to 200 mm.

6. A tool for measuring the virtual pavement thickness of hot asphalt as claimed in claim 1, wherein: the height correction structure is arranged below the lower limiting plate and comprises an upper connecting rod and a lower connecting rod, an external thread is arranged at the bottom of the upper connecting rod, and a locking pin with a section of internal thread cavity and fixedly connected with the top end is arranged at the top of the lower connecting rod.