CN117147217A - Sampling detection device and sampling detection method for road construction - Google Patents
Sampling detection device and sampling detection method for road construction Download PDFInfo
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- CN117147217A CN117147217A CN202311412352.3A CN202311412352A CN117147217A CN 117147217 A CN117147217 A CN 117147217A CN 202311412352 A CN202311412352 A CN 202311412352A CN 117147217 A CN117147217 A CN 117147217A
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- 238000005070 sampling Methods 0.000 title claims abstract description 57
- 238000001514 detection method Methods 0.000 title claims abstract description 51
- 238000010276 construction Methods 0.000 title claims abstract description 42
- 238000005553 drilling Methods 0.000 claims abstract description 58
- 230000005540 biological transmission Effects 0.000 claims abstract description 52
- 238000009434 installation Methods 0.000 claims description 26
- 238000005452 bending Methods 0.000 claims description 20
- 238000012360 testing method Methods 0.000 claims description 18
- 238000000034 method Methods 0.000 claims description 17
- 238000010586 diagram Methods 0.000 description 4
- 230000000149 penetrating effect Effects 0.000 description 3
- 208000012260 Accidental injury Diseases 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
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- 208000014674 injury Diseases 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
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- 238000000926 separation method Methods 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/04—Devices for withdrawing samples in the solid state, e.g. by cutting
- G01N1/08—Devices for withdrawing samples in the solid state, e.g. by cutting involving an extracting tool, e.g. core bit
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/24—Earth materials
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Abstract
The invention relates to a sampling detection device and a sampling detection method for road construction, comprising a drilling cylinder, a positioning piece, a intercepting piece, a transmission cylinder piece and a detection piece mounting box, wherein the top end of the drilling cylinder is provided with a mounting cavity which penetrates through the bottom of the inner surface of the drilling cylinder; the positioning piece is rotatably arranged at the inner top end of the drilling barrel, one end of the intercepting piece is movably clamped on the positioning piece, the other end of the intercepting piece is inserted into the mounting cavity, the bottom end of the intercepting piece is positioned in the mounting cavity in a first state, and the bottom end of the intercepting piece penetrates through the mounting cavity and bends towards the central axis of the drilling barrel in a second state; the transmission cylinder piece is arranged in the drill cylinder, one end of the transmission cylinder piece is in transmission connection with the drill cylinder, and the other end of the transmission cylinder piece is in transmission connection with the external driving piece; the detecting piece mounting box is arranged at the inner bottom end of the transmission barrel part, the bottom end of the detecting piece mounting box is in an arc conical surface structure, the detecting piece is arranged in the detecting piece mounting box, and the detecting end of the detecting piece is arranged on the arc conical surface of the detecting piece mounting box and used for detecting related items of a sample.
Description
Technical Field
The invention relates to the field of sampling detection, in particular to a sampling detection device and a sampling detection method for road construction.
Background
In the road construction process, in order to ensure the road quality safety, after the construction of a section of road is finished, random point selection sampling detection is usually carried out on the section of road, and the sampling detection method is to drill a cylindrical sample on the road surface through a road coring machine, and carry out various data detection on the sample so as to judge whether the construction of the section of road is qualified.
Taking a road surface detection sampling device for highway construction technology of bulletin No. CN113624544A as an example, a sampling drill is adopted to drill and sample a construction road surface, a conical inserting sheet is arranged at the top of the sampling drill, after the sampling drill acquires a cylindrical sample, the conical inserting sheet is inserted into and limits the cylindrical sample, then the sampling drill returns, the cylindrical sample is separated under the cooperation of the sampling drill and the conical inserting sheet, and finally the detection is performed. Although the sampling device can fall off the sample, the improvement is not large compared with the existing coring machine, and the sampling device cannot provide convenience when the sample is detected later.
Disclosure of Invention
Based on the above, it is necessary to provide a sampling and detecting device and a sampling and detecting method for road construction, which eliminate the step of completely taking out a sample from a drill pipe, and can directly detect the preliminary related item of the sample, so that the sampling and the detection are more convenient and stable.
The invention provides a sampling detection device for road construction, which comprises:
the top end of the drilling cylinder is provided with an installation cavity which penetrates through the bottom of the inner surface of the drilling cylinder;
the positioning piece is rotatably arranged at the inner top end of the drill cylinder,
the bottom end of the intercepting piece is positioned in the installation cavity in the first state, and the bottom end of the intercepting piece penetrates through the installation cavity in the second state and bends towards the central axis of the drilling barrel;
the transmission cylinder piece is arranged in the drill cylinder, one end of the transmission cylinder piece is in transmission connection with the drill cylinder, and the other end of the transmission cylinder piece is in transmission connection with an external driving piece;
the detecting piece mounting box is arranged at the inner bottom end of the transmission barrel piece, the bottom end of the detecting piece mounting box is in an arc conical surface structure, the detecting piece is arranged in the detecting piece mounting box, and the detecting end of the detecting piece is arranged on the arc conical surface of the detecting piece mounting box and used for detecting related items of a sample when the detecting piece mounting box is inserted into the sample.
In one embodiment, the installation cavity is provided with a plurality of installation cavities, a plurality of installation cavities are distributed around the central axis of the drill cylinder at intervals, the installation cavity comprises a straight line portion and a guide bending portion, one end of the straight line portion penetrates through the top end of the drill cylinder, the other end of the straight line portion is communicated with one end of the guide bending portion, the other end of the guide bending portion is bent to penetrate through the bottom of the inner surface of the drill cylinder, and a first oblique angle is arranged at the bottom end of the drill cylinder.
In one embodiment, the straight line portion and the horizontal section of the guiding and bending portion are all in an arc-shaped structure, and the arc openings of the straight line portion and the guiding and bending portion face the central axis of the drill cylinder.
In one embodiment, the positioning piece comprises a first fixing plate, a second fixing plate and a connecting cylinder, wherein the first fixing plate and the second fixing plate are all in an annular structure, the first fixing plate and the second fixing plate are connected through the connecting cylinder, a bearing is installed at the inner top of the drilling cylinder, the outer ring of the bearing is fixedly connected with the inner surface of the drilling cylinder, and the inner ring of the bearing is fixedly connected with the second fixing plate.
In one embodiment, the intercepting part comprises a third fixing plate, a reset spring and a plurality of intercepting plates, wherein the third fixing plate is in an arc-shaped structure, the third fixing plate and the reset spring are movably sleeved on the connecting cylinder, one end of the reset spring is connected with the third fixing plate, the intercepting plates are distributed around the central axis of the third fixing plate at intervals and are respectively inserted into a plurality of installing cavities, the intercepting plates are in an arc-shaped structure in a normal state, an arc opening faces the central axis of the drilling cylinder, and the intercepting plates deform when penetrating out of the guide bending part.
In one embodiment, a positioning plate is installed inside the drill cylinder and fixedly connected with the outer ring of the bearing, and a positioning opening for the transmission cylinder to pass through is formed in the positioning plate.
In one embodiment, the transmission barrel part comprises a fourth fixing plate and a mounting barrel, the mounting barrel is located in the drilling barrel, one end of the mounting barrel penetrates through the positioning opening and is in driving connection with the positioning opening, the other end of the mounting barrel is connected with the fourth fixing plate, a second oblique angle is formed in the bottom end of the mounting barrel, and an inner thread groove is formed in the lower half portion of the inner surface of the mounting barrel and used for installing the detection piece mounting box in a threaded mode.
In one embodiment, the mounting cylinder is provided with a plurality of through holes, the through holes are distributed around the central axis of the mounting cylinder at intervals, one end of the through hole positioned on the inner surface of the mounting cylinder is inclined downwards towards the central axis of the mounting cylinder, and two sides of one end of the through hole positioned on the inner surface of the mounting cylinder are provided with guide surfaces.
In one embodiment, the detecting member mounting box comprises a cylindrical portion and an arc cone portion, a detecting member is mounted in the cylindrical portion, an external thread groove matched with the internal thread groove is formed in the outer surface of the cylindrical portion, and a detecting end of the detecting member extends to the surface of the arc cone portion and is used for detecting related items of a sample when the arc cone portion is inserted into the sample.
The invention also provides a sampling detection method for road construction, which comprises the following steps:
in the first state, the external driving piece drives the transmission barrel piece to rotate, so that the drilling barrel is driven to rotate, and the drilling barrel moves downwards in the process to acquire a pavement sample;
in the second state, the intercepting piece moves downwards, the bottom end of the intercepting piece penetrates out of the mounting cavity and is inserted into a sample obtained in the drilling barrel, and intercepting of the sample is completed;
the transmission tube member returns, the end part of the transmission tube member is gradually close to the center of the bottom end of the drill tube, and the detection member mounting box mounted at the inner bottom end of the transmission tube member can be inserted into the sample and enable the sample to diffuse to the periphery, and in the process, the detection members in the detection member mounting box can detect related items at different positions of the sample.
According to the sampling detection device and the sampling detection method for road construction, in the first state, the bottom end of the intercepting part is integrally positioned in the mounting cavity, the bottom end of the transmission cylinder part is positioned near the center of the bottom end of the drilling cylinder, when the construction road needs to be sampled, the transmission cylinder part is started to drive the drilling cylinder to rotate, in the process, the positioning part is pushed to move downwards so that the drilling cylinder is abutted against the road surface, along with the rotation and the downward movement of the drilling cylinder, the drilling cylinder can acquire the part in the construction road as a sample, in the second state, the intercepting part moves downwards and enables the bottom end of the intercepting part to penetrate out of the mounting cavity, the bottom end of the intercepting part is influenced by the structure of the mounting cavity, the bottom end of the intercepting part is bent towards the center of the drilling cylinder, the bottom end of the cylindrical sample is drilled in the drilling cylinder, when the drilling cylinder is lifted back to the original position, namely, the bottom end of the detecting part is abutted against the cylindrical sample, in the arc-shaped conical surface structure is arranged at the bottom end of the detecting part, when the bottom end of the detecting part is mounted on the construction road, the bottom end of the detecting part is taken out of the cylindrical sample, the cylindrical sample is not required to be directly mixed with the cylindrical sample, the sample is directly taken out from the measuring device after the cylindrical sample is directly detected, the sample is completely in the condition of the cylindrical sample is detected, the sample is directly detected in the condition of the sample is not required to be directly detected, and is completely in the condition by the sample mounting box, the sampling and detection are more convenient and stable.
Drawings
In order to more clearly illustrate the invention or the technical solutions of the prior art, the following description will briefly explain the drawings used in the embodiments or the description of the prior art, and it is obvious that the drawings in the following description are some embodiments of the invention, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic perspective view of a sampling and detecting device according to the present invention;
FIG. 2 is a schematic diagram of a first state of the sampling detection device according to the present invention;
FIG. 3 is a schematic diagram of a second state of the sampling detection device according to the present invention;
FIG. 4 is a schematic cross-sectional view of a drill barrel according to the present invention;
FIG. 5 is a schematic diagram of a partial cross-sectional structure of a sampling detection device according to the present invention;
FIG. 6 is a schematic view of a transmission barrel according to the present invention;
fig. 7 is a schematic structural view of a detecting element mounting box provided by the invention;
fig. 8 is a schematic diagram of a sample moving path in a second state of the sampling detection device according to the present invention.
Reference numerals:
100. drilling a cylinder; 110. a mounting cavity; 111. a straight line portion; 112. a guide bending part; 120. a first bevel; 200. a positioning piece; 210. a first fixing plate; 220. a second fixing plate; 230. a connecting cylinder; 300. cutting out a piece; 310. a third fixing plate; 320. a return spring; 330. a cutting plate; 400. a positioning plate; 410. a positioning port; 500. a transmission cylinder; 510. a fourth fixing plate; 520. a mounting cylinder; 521. an internal thread groove; 522. a through hole; 523. a guide surface; 524. a second bevel; 600. a detection piece mounting box; 610. a cylindrical portion; 620. an arc cone; 700. and (3) a bearing.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments of the present invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The following describes a sampling detection apparatus and a sampling detection method for road construction according to the present invention with reference to fig. 1 to 8.
As shown in fig. 1 to 3, in one embodiment, a sampling and detecting device for road construction includes a drill pipe 100, a positioning member 200, a cutting member 300, a driving pipe 500 and a detecting member mounting box 600, wherein a mounting cavity 110 penetrating to the bottom of the inner surface of the drill pipe 100 is formed at the top end of the drill pipe 100; the positioning piece 200 is rotatably installed at the inner top end of the drill barrel 100, one end of the intercepting piece 300 is movably clamped on the positioning piece 200, the other end of the intercepting piece 300 is inserted into the installation cavity 110, in the first state, the bottom end of the intercepting piece 300 is positioned in the installation cavity 110, in the second state, the bottom end of the intercepting piece 300 penetrates through the installation cavity 110 and bends towards the central axis of the drill barrel 100; the transmission barrel part 500 is arranged in the drill barrel 100, one end of the transmission barrel part 500 is in transmission connection with the drill barrel 100, and the other end of the transmission barrel part 500 is in transmission connection with an external driving part; the detection piece mounting box 600 is mounted at the inner bottom end of the transmission barrel 500, the bottom end of the detection piece mounting box 600 is in an arc conical surface structure, the detection piece is arranged in the detection piece mounting box 600, and the detection end of the detection piece is arranged on the arc conical surface of the detection piece mounting box 600 and used for detecting related items of a sample when the detection piece mounting box 600 is inserted into the sample.
In the above-mentioned sampling and testing device for road construction, in the first state, as shown in fig. 2, the bottom end of the intercepting member 300 is integrally located in the mounting cavity 110, the bottom end of the driving tube member 500 is located at a position close to the center of the bottom end of the drilling tube 100, when the construction road needs to be sampled, the driving tube member 500 is started to drive the drilling tube 100 to rotate, in the process, the positioning member 200 is pushed to move downwards so as to enable the drilling tube 100 to abut against the road surface, along with the rotation and the downward movement of the drilling tube 100, the drilling tube 100 can acquire the part in the construction road as a sample, in the second state, as shown in fig. 3, the intercepting member 300 moves downwards and enables the bottom end of the intercepting member 300 to penetrate out of the mounting cavity 110, under the structural influence of the mounting cavity 110, the bottom end of the intercepting member 300 bends towards the central axis of the drilling tube 100, because the inside of the drilling tube 100 is drilled with a cylindrical sample, in the bottom end of the intercepting member 300 can be inserted into the sample bottom, when the drilling tube 100 is lifted back to the original position, i.e. the bottom end of the testing member mounting box 600 is adjacent to the bottom end of the drilling tube 100, in the process, in other state, the cylindrical sample is not required to be taken out of the cylindrical sample, the cylindrical sample is directly from the cylindrical sample is taken out of the cylindrical sample mounting box 600, the cylindrical sample mounting box 600 is not required to be placed in the condition, the sample mounting device is placed in the condition, and the sample is directly after the cylindrical sample mounting box is placed in the cylindrical sample mounting box 600, and the sample is in the condition, the sample mounting device is in the condition, and the condition is in the condition and the condition is directly and the sample is taken out of the sample and the sample mounting and the sample box is in the condition and the sample and the condition and the sample is in the condition required to be taken and the sample is placed, the method can directly detect the preliminary related item of the sample, and is more convenient and stable in sampling and detection.
As shown in fig. 4, in one embodiment, the sampling and detecting device for road construction provided by the invention is provided with a plurality of installation cavities 110, the installation cavities 110 are distributed at intervals around the central axis of the drill barrel 100, the installation cavities 110 comprise a straight line part 111 and a bending guide part 112, one end of the straight line part 111 penetrates through the top end of the drill barrel 100, the other end of the straight line part 111 is communicated with one end of the bending guide part 112, the other end of the bending guide part 112 is bent to penetrate through the bottom of the inner surface of the drill barrel 100, and the bottom end of the drill barrel 100 is provided with a first bevel 120.
Specifically, the first bevel 120 at the bottom end of the drill barrel 100 makes the contact surface between the bottom end of the drill barrel 100 and the road surface form a ring shape, when the drill barrel 100 drills the road surface, the drill barrel 100 drills into the road surface more easily, and in order to make the drilling effect of the drill barrel 100 better, the bottom end of the drill barrel 100 can be provided with separation grooves at intervals.
In one embodiment, in the sampling and detecting device for road construction provided by the invention, the horizontal sections of the straight line portion 111 and the guiding and bending portion 112 are all in arc-shaped structures, and the arc openings of the straight line portion 111 and the guiding and bending portion 112 face the central axis of the drill barrel 100.
Specifically, the tangent plane of straight line portion 111 and curved portion 112 is the arc structure setting for the intercept piece 300 of its inside grafting can keep the arc state when atress bending or deformation, avoids intercept piece 300 in inserting the sample, and the sample receives this influence of leaning on the power to produce deformation when being supported by detecting piece mounting box 600, uses more stably.
As shown in fig. 5, in one embodiment, the positioning member 200 of the sampling and detecting device for road construction provided by the invention comprises a first fixing plate 210, a second fixing plate 220 and a connecting cylinder 230, wherein the first fixing plate 210 and the second fixing plate 220 are all in an annular structure, the first fixing plate 210 and the second fixing plate 220 are connected through the connecting cylinder 230, a bearing 700 is installed at the inner top of the drilling cylinder 100, the outer ring of the bearing 700 is fixedly connected with the inner surface of the drilling cylinder 100, and the inner ring of the bearing 700 is fixedly connected with the second fixing plate 220.
Specifically, the edge of the second fixing plate 220 is movably attached to the inner surface of the drill barrel 100, and the butt joint position of the second fixing plate and the inner surface is smooth, so that collision and accidental injury possibly caused by uneven conditions between the second fixing plate and the inner surface when the drill barrel 100 rotates are avoided. The first fixing plate 210 may be connected to an external pushing member for pushing and pulling back the first fixing plate 210 so that the drill drum 100 drills a road surface or is disengaged from the drilled road.
In one embodiment, the intercepting member 300 includes a third fixing plate 310, a return spring 320 and a plurality of intercepting plates 330, the third fixing plate 310 is in an arc structure, the third fixing plate 310 and the return spring 320 are movably sleeved on the connecting cylinder 230, one end of the return spring 320 is connected with the third fixing plate 310, the intercepting plates 330 are distributed at intervals around the central axis of the third fixing plate 310 and are respectively inserted into the plurality of mounting cavities 110, the intercepting plates 330 are in an arc structure in a normal state, an arc opening faces the central axis of the drilling cylinder 100, and the intercepting plates 330 deform when penetrating out of the guide bending part 112.
Specifically, since the cutter 300 is mounted on the drill barrel 100 and the drill barrel 100 needs to be rotated, one end of the return spring 320 is connected to the third fixing plate 310, and the other end is not normally in contact with the second fixing plate 220, and when the third fixing plate 310 is forced to move along the central axis direction of the drill barrel 100, the return spring 320 is in contact with the second fixing plate 220 and returns the third fixing plate 310 to the initial state position when the force applied by the third fixing plate 310 is cancelled. Through setting up intercept board 330 as the atress deformation, the installation occupation space of this intercept piece 300 is little, and more smooth and easy during the use, and is limited by its tangent plane and is the arc structure setting, intercept board 330 also can not be by cylindric sample extrusion deformation when crooked.
In one embodiment, the sampling and detecting device for road construction provided by the invention is characterized in that a locating plate 400 is installed in a drilling barrel 100, the locating plate 400 is fixedly connected with the outer ring of a bearing 700, and a locating opening 410 for a transmission barrel 500 to pass through is formed in the locating plate 400.
Specifically, the positioning plate 400 is used for linking the transmission barrel 500 and the drill barrel 100, in order to realize transmission between the transmission barrel 500 and the positioning plate 400, a non-circular positioning opening 410 is formed in the middle of the positioning plate 400, and the surface of the transmission barrel 500 has a structure matched with the positioning hole for ensuring stable transmission between the transmission barrel 500 and the positioning plate 400.
As shown in fig. 6, in one embodiment, the driving barrel 500 of the sampling and detecting device for road construction provided by the present invention includes a fourth fixing plate 510 and a mounting barrel 520, wherein the mounting barrel 520 is located in the drilling barrel 100, one end of the mounting barrel 520 passes through the positioning opening 410 and is in driving connection with the positioning opening 410, the other end of the mounting barrel 520 is connected with the fourth fixing plate 510, the bottom end of the mounting barrel 520 is provided with a second bevel angle 524, and the lower half of the inner surface of the mounting barrel 520 is provided with an internal thread groove 521 for installing the detecting element mounting box 600 in a threaded manner.
Specifically, the setting of the internal thread groove 521 allows the installation depth of the detecting member installation box 600 to be manually controlled, so as to be matched with the drill barrels 100 corresponding to different working depths, and simultaneously, the dismounting and cleaning of the detecting member installation box 600 are also facilitated.
In one embodiment, the sampling and detecting device for road construction provided by the invention is characterized in that the mounting cylinder 520 is provided with a plurality of through holes 522, the through holes 522 are distributed at intervals around the central axis of the mounting cylinder 520, one end of the through hole 522 positioned on the inner surface of the mounting cylinder 520 is inclined downwards towards the central axis of the mounting cylinder 520, and both sides of one end of the through hole 522 positioned on the inner surface of the mounting cylinder 520 are provided with guide surfaces 523.
Specifically, when the test element mounting box 600 is inserted into a cylindrical sample, the sample is pushed by the test element mounting box 600 to move along the plurality of through holes 522, and the side guide surfaces 523 of the through holes 522 are configured to enable the sample facing between two adjacent through holes 522 to move along the guide surfaces 523 and then pass through the through holes 522 to the outside of the mounting cylinder 520, and the sample moving process is shown by the black long arrow in fig. 8.
As shown in fig. 7, in one embodiment, the sampling and detecting device for road construction provided by the invention, the detecting element mounting box 600 comprises a cylindrical portion 610 and an arc cone portion 620, wherein the detecting element is mounted in the cylindrical portion 610, the outer surface of the cylindrical portion 610 is provided with an external thread groove matched with the internal thread groove 521, and the detecting end of the detecting element extends to the surface of the arc cone portion 620 for detecting the relevant item of the sample when the arc cone portion 620 is inserted into the sample.
Specifically, the top end of the cylindrical portion 610 is detachable and used for installing the detecting member, and the surface of the arc cone 620 is provided with an installation position for fixing the detecting end of the detecting member.
In one embodiment, the invention provides a sampling detection method for road construction, which comprises the following steps:
in the first state, the external driving member drives the transmission barrel member 500 to rotate, so as to drive the drill barrel 100 to rotate, and in the process, the drill barrel 100 moves downwards to acquire the road surface sample.
In the second state, the intercepting member 300 moves downward, and the bottom end of the intercepting member 300 penetrates out of the mounting cavity 110 and is inserted into the sample obtained in the drill barrel 100, so that the intercepting of the sample is completed.
The transmission tube 500 returns, the end of the transmission tube 500 gradually approaches the center of the bottom end of the drill tube 100, and the detection element mounting box 600 mounted at the bottom end in the transmission tube 500 is inserted into the sample and diffuses the sample to the periphery, so that the detection elements in the detection element mounting box 600 can detect the relevant items at different positions of the sample in the process.
In the above-mentioned sampling test method for road construction, in the first state, as shown in fig. 2, the bottom end of the intercepting member 300 is integrally located in the mounting cavity 110, the bottom end of the driving tube member 500 is located at a position adjacent to the center of the bottom end of the drilling tube 100, when the construction road needs to be sampled, the driving tube member 500 is started to drive the drilling tube 100 to rotate, in the process, the positioning member 200 is pushed to move downwards so as to enable the drilling tube 100 to abut against the road surface, along with the rotation and the downward movement of the drilling tube 100, the part in the construction road can be obtained as a sample in the interior of the drilling tube 100, in the second state, as shown in fig. 3, the intercepting member 300 moves downwards and enables the bottom end to penetrate out of the mounting cavity 110, under the structural influence of the mounting cavity 110, the bottom end of the intercepting member 300 bends towards the central axis of the drilling tube 100, because the cylindrical sample is drilled inside the drilling tube 100, in the bottom end of the intercepting member 300 can be inserted into the sample bottom, when the drilling tube 100 is lifted back to the original position, i.e. the bottom end of the detecting member mounting box 600 is adjacent to the bottom end of the drilling tube 100, in the process, in other step, the cylindrical sample is not required to be taken out, the cylindrical sample is directly placed around the cylindrical sample mounting box 600, the cylindrical sample mounting box is not required to be placed in the arc-shaped sample mounting box 600, and the sample mounting device is placed in the condition, and the sample mounting device is used for detecting the cylindrical sample mounting device is directly, and the sample mounting device is placed in the condition, and the sample mounting and the cylindrical sample mounting device is in the condition, and the sample is in the condition and the condition is replaced, and the sample is in the condition and the sample is placed and the sample test box is in the sample test box and the sample test device and the sample is placed, the method can directly detect the preliminary related item of the sample, and is more convenient and stable in sampling and detection.
The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.
The foregoing examples illustrate only a few embodiments of the invention and are described in detail herein without thereby limiting the scope of the invention. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the invention, which are all within the scope of the invention. Accordingly, the scope of protection of the present invention is to be determined by the appended claims.
Claims (10)
1. A sampling and detecting device for road construction, comprising:
the top end of the drilling cylinder is provided with an installation cavity which penetrates through the bottom of the inner surface of the drilling cylinder;
the positioning piece is rotatably arranged at the inner top end of the drill cylinder,
the bottom end of the intercepting piece is positioned in the installation cavity in the first state, and the bottom end of the intercepting piece penetrates through the installation cavity in the second state and bends towards the central axis of the drilling barrel;
the transmission cylinder piece is arranged in the drill cylinder, one end of the transmission cylinder piece is in transmission connection with the drill cylinder, and the other end of the transmission cylinder piece is in transmission connection with an external driving piece;
the detecting piece mounting box is arranged at the inner bottom end of the transmission barrel piece, the bottom end of the detecting piece mounting box is in an arc conical surface structure, the detecting piece is arranged in the detecting piece mounting box, and the detecting end of the detecting piece is arranged on the arc conical surface of the detecting piece mounting box and used for detecting related items of a sample when the detecting piece mounting box is inserted into the sample.
2. The sampling and detecting device for road construction according to claim 1, wherein the installation cavity is provided with a plurality of installation cavities, the plurality of installation cavities are distributed at intervals around the central axis of the drill cylinder, the installation cavity comprises a straight line portion and a bending guide portion, one end of the straight line portion penetrates through the top end of the drill cylinder, the other end of the straight line portion is communicated with one end of the bending guide portion, the other end of the bending guide portion is bent to penetrate through the bottom of the inner surface of the drill cylinder, and a first oblique angle is arranged at the bottom end of the drill cylinder.
3. The sampling and testing device for road construction according to claim 2, wherein the straight line portion and the horizontal tangential surface of the guiding and bending portion are all arranged in an arc-shaped structure, and the arc openings of the straight line portion and the guiding and bending portion face the central axis of the drill cylinder.
4. The sampling and detecting device for road construction according to claim 3, wherein the positioning piece comprises a first fixing plate, a second fixing plate and a connecting cylinder, the first fixing plate and the second fixing plate are all in an annular structure, the first fixing plate and the second fixing plate are connected through the connecting cylinder, a bearing is installed at the inner top of the drilling cylinder, the outer ring of the bearing is fixedly connected with the inner surface of the drilling cylinder, and the inner ring of the bearing is fixedly connected with the second fixing plate.
5. The sampling detection device for road construction according to claim 4, wherein the intercepting member comprises a third fixing plate, a reset spring and a plurality of intercepting plates, the third fixing plate is in an arc-shaped structure, the third fixing plate and the reset spring are movably sleeved on the connecting cylinder, one end of the reset spring is connected with the third fixing plate, the intercepting plates are distributed at intervals around the central axis of the third fixing plate and are respectively inserted into the installation cavities, the intercepting plates are in an arc-shaped structure in a normal state, an arc opening faces the central axis of the drilling cylinder, and deformation is generated when the intercepting plates penetrate out of the guide bending part.
6. The sampling and testing device for road construction according to claim 5, wherein a positioning plate is installed inside the drill cylinder, the positioning plate is fixedly connected with the outer ring of the bearing, and a positioning opening through which the transmission cylinder passes is formed in the positioning plate.
7. The sampling test device for road construction according to claim 6, wherein the transmission barrel member comprises a fourth fixing plate and a mounting barrel, the mounting barrel is located in the drilling barrel, one end of the mounting barrel penetrates through the positioning opening and is in driving connection with the positioning opening, the other end of the mounting barrel is connected with the fourth fixing plate, a second oblique angle is formed in the bottom end of the mounting barrel, and an inner thread groove is formed in the lower half portion of the inner surface of the mounting barrel for installing the test piece mounting box in a threaded manner.
8. The sampling and testing device for road construction according to claim 7, wherein the mounting cylinder is provided with a plurality of through holes, the through holes are distributed around the central axis of the mounting cylinder at intervals, one end of the through holes on the inner surface of the mounting cylinder is inclined downwards towards the central axis of the mounting cylinder, and both sides of one end of the through holes on the inner surface of the mounting cylinder are provided with guide surfaces.
9. The sampling test device for road construction according to claim 8, wherein the test piece mounting box comprises a cylindrical portion and an arc cone portion, wherein the test piece is mounted in the cylindrical portion, an external thread groove matched with the internal thread groove is provided on the outer surface of the cylindrical portion, and a test end of the test piece extends to the surface of the arc cone portion for performing related item test on a sample when the arc cone portion is inserted into the sample.
10. A sampling detection method for road construction, the method comprising:
in the first state, the external driving piece drives the transmission barrel piece to rotate, so that the drilling barrel is driven to rotate, and the drilling barrel moves downwards in the process to acquire a pavement sample;
in the second state, the intercepting piece moves downwards, the bottom end of the intercepting piece penetrates out of the mounting cavity and is inserted into a sample obtained in the drilling barrel, and intercepting of the sample is completed;
the transmission tube member returns, the end part of the transmission tube member is gradually close to the center of the bottom end of the drill tube, and the detection member mounting box mounted at the inner bottom end of the transmission tube member can be inserted into the sample and enable the sample to diffuse to the periphery, and in the process, the detection members in the detection member mounting box can detect related items at different positions of the sample.
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| CN117147217B (en) | 2024-01-16 |
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