CN115679778A

CN115679778A - Asphalt pavement construction loose-paving thickness tester

Info

Publication number: CN115679778A
Application number: CN202211322697.5A
Authority: CN
Inventors: 杨智勇; 于文立; 赵瑜
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-10-27
Filing date: 2022-10-27
Publication date: 2023-02-03

Abstract

The invention discloses an asphalt pavement construction loose paving thickness inspection instrument, and relates to the technical field of road construction. The invention comprises a chassis, wherein a bracket is arranged at the top of the chassis, and a measuring rod capable of passing through a guide hole penetrates through the bracket; the measuring rod is characterized by further comprising a bottom rod arranged at the bottom of the measuring rod, a second arc plate capable of automatically swinging is hinged to the bottom of the bottom rod, a sliding block is connected to the inside of the sliding groove in a sliding mode, a first arc plate is hinged to the bottom of the sliding block, and a connecting mechanism is arranged inside the second arc plate. According to the invention, the first arc plate and the second arc plate can be separated by controlling the connecting mechanism, then the second arc plate is controlled to swing, the second arc plate is gathered outside the bottom rod, the drill bit and the bottom rod are inserted into a roadbed, the bottom of the measuring rod is contacted with the roadbed, and the measuring rod cannot be inserted into the roadbed because the bottom of the measuring rod is a plane, so that a measuring reference surface can be accurately found, the measuring precision is ensured, and the measuring result is accurate.

Description

Asphalt pavement construction loose-paving thickness tester

Technical Field

The invention relates to the technical field of road construction, in particular to an asphalt pavement construction loose paving thickness tester.

Background

The loose coefficient of the asphalt pavement is an important technical parameter in the construction process of the asphalt pavement, plays an important guiding role in the construction of the asphalt pavement, and directly influences the paving thickness, the flatness and the compaction effect, so that the chain reaction is caused to influence the use function of the pavement, and the control on the loose coefficient also reflects the construction level and the construction quality of a construction unit.

At present, a steel needle with scales is mostly adopted for measuring the loose pavement thickness of the asphalt pavement to be inserted into the pavement, the steel needle is inserted into the pavement to be measured by reading the insertion depth of the steel needle, the steel needle can not accurately hold the descending position of the steel needle after being inserted into the asphalt, the steel needle is easily and excessively inserted into the roadbed, and the measuring result is inaccurate.

Disclosure of Invention

The invention aims to: the invention provides an asphalt pavement construction loose pavement thickness tester, which aims to solve the problem that a steel needle is easily excessively inserted into a roadbed to cause inaccurate measuring results.

The invention specifically adopts the following technical scheme for realizing the purpose:

an asphalt pavement construction loose paving thickness tester comprises a chassis, wherein a support is arranged at the top of the chassis, a guide hole is formed in the chassis, and a measuring rod capable of passing through the guide hole penetrates through the support;

still including setting up the sill bar in the measuring stick bottom, the bottom of sill bar is provided with the drill bit, the bottom of sill bar articulates there is the second arc board that can automatic swing, the spout has been seted up to the outside annular of measuring stick, the inside sliding connection of spout has the slider, the bottom of slider articulates there is first arc board, the articulated department of first arc board is provided with the torsional spring, the inside of second arc board is provided with coupling mechanism, coupling mechanism enables first arc board and second arc board is connected.

Furthermore, a sliding ring is sleeved on the outer side of the bottom rod, a connecting rod is hinged to the outer side of the sliding ring in an annular mode, a pulling block is arranged on the inner wall of the second arc plate and hinged to the connecting rod, a sliding rod is fixedly connected to the top of the sliding ring, an adjusting screw is installed at the top of the sliding rod in a rotating mode, the adjusting screw is connected to the top of the measuring rod in a threaded mode, and an adjusting knob is arranged at the top of the adjusting screw.

Further, coupling mechanism is including seting up the slide opening in the second arc board outside, the inside sliding connection of slide opening has the fixture block, be provided with the jump ring between fixture block and the slide opening inner wall, the transmission groove has been seted up to the inner wall of second arc board, draw a sliding connection in the transmission groove, draw the piece through the stay cord with the fixture block is connected, still including seting up the card hole in the first arc board outside, work as when first arc board and second arc board are drawn together, fixture block ability joint is in the card hole.

Furthermore, when the first arc plate and the second arc plate are closed, a cone can be formed by the first arc plate and the drill.

Further, the width of the first arc plate is larger than that of the second arc plate.

Furthermore, the top of the support is rotatably provided with a crank, the support is rotatably provided with a driving wheel fixedly connected with the crank, the support is internally rotatably provided with a nut wheel meshed with the driving wheel, the upper half part of the measuring rod is provided with an external thread, and the nut wheel is in threaded connection with the external thread.

Furthermore, the top of support is provided with the scale, the top of measuring stick is installed and is instructed the strip, instruct the strip to cup joint in the outside of scale.

Furthermore, both sides of the graduated scale are provided with measuring scales.

The invention has the following beneficial effects:

1. according to the invention, the measuring rod is inserted into asphalt, when the drill bit descends to a roadbed, the stress of the drill bit is larger, the connecting mechanism is controlled to separate the first arc plate from the second arc plate, then the second arc plate is controlled to swing, the second arc plate is gathered outside the bottom rod, the measuring rod is continuously controlled to descend, the drill bit and the bottom rod are inserted into the roadbed, the bottom of the measuring rod is in contact with the roadbed, and the measuring rod cannot be inserted into the roadbed because the bottom of the measuring rod is a plane, so that a measuring reference surface can be accurately found, the measuring precision is ensured, and the measuring result is accurate.

2. According to the invention, the first arc plate and the second arc plate are separated, the first arc plate swings to a vertical state under the action of the internal torsion spring, the first arc plate can push asphalt at the bottom of the measuring rod to two sides, the resistance of the measuring rod during descending is ensured to be small, the second arc plate is gathered outside the bottom rod, the stress area of the bottom rod and the drill bit is reduced, the drill bit can be easily inserted into a roadbed, the measuring rod descends stably, and the resistance is small.

Drawings

FIG. 1 is an overall perspective view of the present invention;

FIG. 2 is a perspective view of the stand of the present invention;

FIG. 3 is a partially cross-sectional schematic view of a stent according to the present invention;

FIG. 4 is a perspective view of a measuring rod according to the present invention;

FIG. 5 is an enlarged schematic view of portion A of FIG. 4 in accordance with the present invention;

FIG. 6 is a schematic cross-sectional view of a measuring rod according to the present invention;

FIG. 7 is an enlarged view of portion B of FIG. 6 in accordance with the present invention;

FIG. 8 is an enlarged schematic view of portion C of FIG. 6 in accordance with the present invention;

FIG. 9 is an enlarged schematic view of portion D of FIG. 8 in accordance with the present invention;

FIG. 10 is a perspective view of a first arc plate of the present invention;

FIG. 11 is a schematic front view of a first arc plate of the present invention;

FIG. 12 is a perspective view of a second arc plate of the present invention;

FIG. 13 is a schematic front view of a second arc plate of the present invention;

fig. 14 is an enlarged view of portion E of fig. 13 according to the present invention.

Reference numerals: 1. a chassis; 2. a guide hole; 3. a support; 4. a crank; 5. a drive wheel; 6. a nut wheel; 7. a graduated scale; 8. a measuring rod; 9. an indicator strip; 10. a chute; 11. a slider; 12. a first arc plate; 13. a clamping hole; 14. a torsion spring; 15. a bottom bar; 16. a drill bit; 17. a second arc plate; 18. a clamping block; 19. a clamp spring; 20. pulling a rope; 21. pulling the block; 22. a connecting rod; 23. a slip ring; 24. a slide bar; 25. adjusting the screw rod.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention.

As shown in fig. 1-14, an asphalt pavement construction loose thickness inspection tester comprises a chassis 1, a support 3 is arranged on the top of the chassis 1, a guide hole 2 is arranged in the chassis 1, and a measuring rod 8 capable of passing through the guide hole 2 penetrates through the support 3;

still including setting up the sill bar 15 in the 8 bottoms of measuring stick, the bottom of sill bar 15 is provided with drill bit 16, the bottom of sill bar 15 articulates there is second arc board 17 that can automatic swing, spout 10 has been seted up to the outside annular of measuring stick 8, the inside sliding connection of spout 10 has slider 11, slider 11's bottom articulates there is first arc board 12, the articulated department of first arc board 12 is provided with torsional spring 14, the inside of second arc board 17 is provided with coupling mechanism, coupling mechanism enables first arc board 12 and is connected with second arc board 17.

When the measuring device is used, the chassis 1 is placed on an asphalt pavement, the measuring rod 8 is perpendicular to the asphalt pavement under the action of the guide hole 2 and the support 3, then the measuring rod 8 is controlled to descend, the measuring rod 8 is inserted into the asphalt pavement along the guide hole 2, the measuring rod 8 can be quickly inserted into the asphalt pavement under the action of the drill bit 16, and the insertion resistance is small;

when the drill bit 16 descends to a roadbed position, the hardness of the roadbed is greater than that of a loosely paved asphalt pavement, so that the measuring rod 8 can bear obvious resistance, the connecting mechanism is controlled to separate the first arc plates 12 from the second arc plates 17, then the second arc plates 17 are controlled to swing, the second arc plates 17 are gathered outside the bottom rod 15, the second arc plates 17 and the first arc plates 12 are annularly distributed and are intersected with each other, a certain gap is reserved between the adjacent second arc plates 17, the second arc plates 17 can be smoothly gathered outside the bottom rod 15 and are stably gathered, meanwhile, the first arc plates 12 automatically swing under the action of the torsion springs 14, the first arc plates 12 swing to a vertical position, the first arc plates 12 and the sliding blocks 11 are in the same straight line at the moment, the sliding blocks 11 slide in the sliding grooves 10 are not influenced, the first arc plates 12 swing, asphalt at the bottom of the measuring rod 8 is stirred outwards, no asphalt exists at the bottom of the measuring rod 8, the measuring rod 8 continues to descend, and the first arc plates 12 and the sliding blocks 10 play a role in stabilizing the guiding rod 8 and stably descend;

at the moment, the measuring rod 8 is continuously controlled to descend, the measuring rod 8 drives the bottom rod 15 and the drill bit 16 to be inserted into the roadbed, the radius of the bottom rod 15 at the moment is far smaller than that of the measuring rod 8, therefore, the bottom rod 15 and the drill bit 16 can be more easily inserted into the roadbed, the insertion resistance is small, the bottom rod 15 and the drill bit 16 are inserted into the roadbed, the bottom surface of the measuring rod 8 is in contact with the surface of the roadbed, because the bottom surface of the measuring rod 8 is a plane, the measuring rod 8 is not inserted into the roadbed, meanwhile, the measuring rod 8 descends, the sliding block 11 is enabled to ascend relative to the sliding groove 10, the sliding block 11 drives the first arc plate 12 to be folded into the sliding groove 10, because the bottom surface of the measuring rod 8 is tightly attached to the surface of the roadbed and cannot sink, the accuracy of the measuring result can be ensured, and is not the same as that a common measuring steel needle is easily inserted, the bottom end is generally in a conical design, the steel needle is easily inserted into the roadbed, the measuring base surface can be accurately found, and the measuring result can be inaccurate.

After the measurement is accomplished, extract measuring stick 8, then control second arc board 17 swing that resets, then with pressing first arc board 12 and second arc board 17 together with the hand, make first arc board 12 be connected with second arc board 17 through coupling mechanism, do not influence next use convenient to use.

As shown in fig. 8 and 9, in some embodiments, a sliding ring 23 is sleeved on the outer side of the bottom rod 15, a connecting rod 22 is annularly hinged on the outer side of the sliding ring 23, a pulling block 21 is arranged on the inner wall of the second arc plate 17, the pulling block 21 is hinged to the connecting rod 22, a sliding rod 24 is fixedly connected to the top of the sliding ring 23, an adjusting screw 25 is rotatably mounted on the top of the sliding rod 24, the adjusting screw 25 is in threaded connection with the top of the measuring rod 8, and an adjusting knob is arranged on the top of the adjusting screw 25.

When the second arc plate 17 needs to be closed outside the bottom rod 15, the adjusting screw 25 is rotated through the adjusting knob, the adjusting screw 25 ascends relative to the measuring rod 8, the adjusting screw 25 drives the slide rod 24 to ascend relative to the measuring rod 8, the slide rod 24 drives the slide ring 23 to ascend, the slide ring 23 drives the connecting rod 22 to ascend, the connecting rod 22 drives the second arc plate 17 to swing through the pull block 21, the second arc plate 17 is closed outside the bottom rod 15, and self-locking is realized through the threads of the adjusting screw 25, so that the slide ring 23 can be prevented from automatically descending, and the closing stability of the second arc plate 17 is ensured;

when the second arc plate 17 needs to be unfolded, the adjusting screw 25 is reversely rotated by the adjusting knob, the adjusting screw 25 drives the sliding rod 24 to descend, the sliding rod 24 drives the sliding ring 23 to descend, the sliding ring 23 drives the connecting rod 22 to descend, the connecting rod 22 drives the second arc plate 17 to swing outwards through the pulling block 21, the second arc plate 17 is unfolded, meanwhile, the adjusting knob limits the adjusting screw 25, the descending distance of the adjusting screw 25 is limited, the swinging angle of the second arc plate 17 can be limited through the adjusting screw 25, the second arc plate 17 is not influenced to be connected with the first arc plate 12, and the adjustment is stable.

As shown in fig. 12-14, in some embodiments, the connection mechanism includes a sliding hole formed on an outer side of the second arc plate 17, a clamping block 18 is slidably connected inside the sliding hole, a clamping spring 19 is disposed between the clamping block 18 and an inner wall of the sliding hole, a transmission groove is formed on an inner wall of the second arc plate 17, a pulling block 21 is slidably connected in the transmission groove, the pulling block 21 is connected with the clamping block 18 through a pulling rope 20, and the connection mechanism further includes a clamping hole 13 formed on an outer side of the first arc plate 12, and when the first arc plate 12 and the second arc plate 17 are closed together, the clamping block 18 can be clamped in the clamping hole 13.

When the second arc plate 17 needs to be gathered outside the bottom rod 15, the adjusting screw 25 is rotated through the adjusting knob, the adjusting screw 25 rises relative to the measuring rod 8, the adjusting screw 25 drives the slide rod 24 to rise relative to the measuring rod 8, the slide rod 24 drives the slide ring 23 to rise, the slide ring 23 drives the connecting rod 22 to rise, at the moment, under the limitation of the clamping block 18 and the clamping hole 13, the second arc plate 17 cannot swing, therefore, the connecting rod 22 can firstly drive the pull block 21 to slide relative to the second arc plate 17, the pull block 21 drives the clamping block 18 to be far away from the clamping hole 13 through a pull rope, at the moment, the second arc plate 17 can be separated from the first arc plate 12, the second arc plate 17 is not limited, then the pull block 21 drives the second arc plate 17 to swing, and the connecting mechanism can be controlled while the second arc plate 17 is gathered, so that the structure is compact and the control is stable;

when the second arc plate 17 needs to be unfolded, the adjusting screw 25 is reversely rotated by the adjusting knob, the adjusting screw 25 drives the sliding rod 24 to descend, the sliding rod 24 drives the sliding ring 23 to descend, the sliding ring 23 drives the connecting rod 22 to descend, the connecting rod 22 drives the second arc plate 17 to swing outwards through the pulling block 21, the second arc plate 17 is unfolded, meanwhile, the fixture block 18 extends out under the action of the clamp spring 19, then the first arc plate 12 is folded on the second arc plate 17 by hand, the fixture block 18 is clamped in the clamping hole 13, the first arc plate 12 is connected with the second arc plate 17, as shown in fig. 12, the outer end of the fixture block 18 is in an arc design, so that the first arc plate 12 can be easily folded with the second arc plate 17, and the folding is convenient.

In some embodiments, as shown in fig. 5, the first arc plate 12 and the second arc plate 17 can form a cone with the drill 16 when they are closed together.

When the first arc plate 12 and the second arc plate 17 are closed together, a cone is formed by the first arc plate and the drill bit 16, the inserting resistance of the measuring rod 8 can be further reduced, the inserting is labor-saving, and when the second arc plate 17 is closed, the inserting resistance of the bottom rod 15 in the roadbed can be reduced according to the tight attaching on the outer side of the bottom rod 15.

As shown in fig. 5, in some embodiments, the width of the first arc plate 12 is greater than the width of the second arc plate 17.

Through this design, make the pitch with 8 tops of measuring stick that first arc board 12 can be more comprehensive push away to the outside, and the direction supports more stably, can not peg graft in the road bed, and is less through second arc board 17 width simultaneously, makes multiunit second arc board 17 can draw in the sill bar 15 outside completely, draws in compactlyer.

As shown in fig. 2 and 3, in some embodiments, a crank 4 is rotatably mounted on the top of the bracket 3, a driving wheel 5 fixedly connected with the crank 4 is rotatably mounted on the bracket 3, a nut wheel 6 meshed with the driving wheel 5 is rotatably mounted inside the bracket 3, an external thread is arranged on the upper half part of the measuring rod 8, and the nut wheel 6 is in threaded connection with the external thread.

Through rotating crank 4, crank 4 drives drive wheel 5 and rotates, and drive wheel 5 drives nut wheel 6 and rotates, and nut wheel 6 drives measuring stick 8 through the external screw thread and descends, can more accurate control measuring stick 8 descend, and can guarantee that measuring stick 8 descends perpendicularly, measures stably.

As shown in fig. 1, in some embodiments, a graduated scale 7 is disposed on the top of the bracket 3, and an indication strip 9 is mounted on the top of the measuring rod 8, and the indication strip 9 is sleeved on the outer side of the graduated scale 7.

The measuring stick 8 descends and drives the indication strip 9 to descend, and the descending distance of the measuring stick 8 is read out by observing the scale of the indication strip 9 on the graduated scale 7, so that the measurement is convenient, and meanwhile, under the limitation of the indication strip 9 and the graduated scale 7, the measuring stick 8 can not rotate along with the nut wheel 6, and the measuring stick 8 descends more stably.

In some embodiments, as shown in figure 1, both sides of the scale 7 are provided with measurement graduations.

Through this design, make survey crew follow all directions homoenergetic and observe the scale, the reading is more convenient.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. The asphalt pavement construction loose paving thickness inspection tester comprises a chassis (1) and is characterized in that a support (3) is arranged at the top of the chassis (1), a guide hole (2) is formed in the chassis (1), and a measuring rod (8) capable of passing through the guide hole (2) penetrates through the support (3);

still including setting up sill bar (15) in measuring stick (8) bottom, the bottom of sill bar (15) is provided with drill bit (16), the bottom of sill bar (15) articulates there is second arc board (17) that can automatic swing, spout (10) have been seted up to the outside annular of measuring stick (8), the inside sliding connection of spout (10) has slider (11), the bottom of slider (11) articulates there is first arc board (12), the articulated department of first arc board (12) is provided with torsional spring (14), the inside of second arc board (17) is provided with coupling mechanism, coupling mechanism enables first arc board (12) and second arc board (17) is connected.

2. The asphalt pavement construction loose paving thickness detector as claimed in claim 1, wherein a sliding ring (23) is sleeved on the outer side of the bottom rod (15), a connecting rod (22) is annularly hinged on the outer side of the sliding ring (23), a pulling block (21) is arranged on the inner wall of the second arc plate (17), the pulling block (21) is hinged with the connecting rod (22), a sliding rod (24) is fixedly connected to the top of the sliding ring (23), an adjusting screw (25) is rotatably mounted on the top of the sliding rod (24), the adjusting screw (25) is in threaded connection with the top of the measuring rod (8), and an adjusting knob is arranged on the top of the adjusting screw (25).

3. The asphalt pavement construction loose paving thickness inspection instrument as claimed in claim 2, wherein the connecting mechanism comprises a slide hole arranged at the outer side of the second arc plate (17), a clamping block (18) is slidably connected inside the slide hole, a clamping spring (19) is arranged between the clamping block (18) and the inner wall of the slide hole, a transmission groove is formed in the inner wall of the second arc plate (17), the pulling block (21) is slidably connected in the transmission groove, the pulling block (21) is connected with the clamping block (18) through a pulling rope (20), the asphalt pavement construction loose paving thickness inspection instrument further comprises a clamping hole (13) arranged at the outer side of the first arc plate (12), and when the first arc plate (12) and the second arc plate (17) are closed, the clamping block (18) can be clamped in the clamping hole (13).

4. The asphalt pavement construction loose thickness tester according to any one of claims 1-3, characterized in that the first arc plate (12) and the second arc plate (17) can form a cone with the drill bit (16) when they are closed together.

5. The asphalt pavement construction loose thickness inspection instrument according to any one of claim 4, wherein the width of the first arc plate (12) is larger than the width of the second arc plate (17).

6. The asphalt pavement construction loose thickness tester according to claim 1, characterized in that a crank (4) is rotatably mounted at the top of the bracket (3), a driving wheel (5) fixedly connected with the crank (4) is rotatably mounted at the bracket (3), a nut wheel (6) meshed with the driving wheel (5) is rotatably mounted inside the bracket (3), an external thread is arranged at the upper half part of the measuring rod (8), and the nut wheel (6) is in threaded connection with the external thread.

7. The asphalt pavement construction loose thickness tester according to claim 5, characterized in that a graduated scale (7) is arranged on the top of the bracket (3), an indication strip (9) is mounted on the top of the measuring rod (8), and the indication strip (9) is sleeved on the outer side of the graduated scale (7).

8. The asphalt pavement construction loose thickness inspection tester according to claim 7, characterized in that the two sides of the graduated scale (7) are provided with measuring scales.