CN216558645U

CN216558645U - Highway engineering is managed and is used thickness detection device

Info

Publication number: CN216558645U
Application number: CN202122477969.6U
Authority: CN
Inventors: 陈艳林; 刘云
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-10-14
Filing date: 2021-10-14
Publication date: 2022-05-17
Anticipated expiration: 2031-10-14

Abstract

The utility model belongs to the technical field of highway engineering supervision equipment, in particular to the field of a thickness detection device for highway engineering supervision, which comprises a pressure-bearing plate, a measurement post rod and a detection plate, wherein the inner side of the pressure-bearing plate is provided with a measurement handle, the inner side of the pressure-bearing plate is provided with an anti-slip layer, the inner side of the pressure-bearing plate is provided with a connection inner groove, the inner side of the measurement post rod is provided with a measurement movable groove, the inner side of the measurement post rod is provided with an observation window, the inner side of the measurement post rod is provided with a scale inner groove, the inner side of the scale inner groove is provided with scale marks, when the thickness detection is required, two detection plate handles are respectively rotated and erected from the corresponding detection plate inner grooves, then the detection plate handles are held by hands to stably place the detection plate at the position of the upper end of an excavated detection pothole, at the moment, a detection bottom layer is contacted with the ground, and the arrangement of the detection plate handles, the detection plate is convenient to move, and therefore the use flexibility of the thickness detection device is improved.

Description

Highway engineering is managed and is used thickness detection device

Technical Field

The utility model belongs to the technical field of highway engineering supervision equipment, and particularly relates to a thickness detection device for highway engineering supervision.

Background

Project supervision refers to the entrusting of a supervision unit with related qualification by a first party, and the quality of the project construction is evaluated according to the national standard.

In highway engineering, the thickness of each layer is closely related to the overall strength of a highway, the strength of each layer and the overall strength of the highway can be guaranteed only under the condition of guaranteeing the thickness, the thickness of each structural layer of the highway can be strictly controlled, the elevation of a road surface can be controlled to a certain degree, and the method is an important index.

SUMMERY OF THE UTILITY MODEL

Most of the existing thickness detection devices for highway engineering supervision cannot be flexibly assembled and disassembled, so that the thickness detection devices are inconvenient to use and transport. The utility model provides a thickness detection device for road engineering supervision, which has the characteristics that when the thickness detection is required, a connecting column is inserted into a connecting inner groove, then threaded connection is carried out, so that the connection of a pressure-bearing detection plate and a measurement column rod is realized, after the detection is finished, the pressure-bearing detection plate and the measurement column rod are separated from each other, so that the assembly and disassembly of the thickness detection device are realized, when the thickness detection is required, two detection plate handles are respectively rotated and erected from the corresponding detection plate inner grooves, then the detection plate handles are held by hands to stably place the detection plate at the upper end of an excavated detection pit hole, at the moment, a detection bottom layer is contacted and attached with the ground, the detection plate is convenient to move through the arrangement of the detection plate handles, and the use flexibility of the thickness detection device is improved.

The utility model provides the following technical scheme: a thickness detection device for road engineering supervision comprises a pressure plate, a measuring post rod and a detection plate, wherein a measuring handle is arranged on the inner side of the pressure plate, an anti-slip layer is arranged on the inner side of the pressure plate, an inner connecting groove is arranged on the inner side of the pressure plate, a movable measuring groove is arranged on the inner side of the measuring post rod, an observation window is arranged on the inner side of the measuring post rod, an inner graduated groove is arranged on the inner side of the measuring post rod, graduated lines are arranged on the inner side of the inner graduated groove, a connecting post is arranged at the upper end of the measuring post rod, a detection bottom layer is arranged at the lower end of the detection plate, an inner measuring plate groove is arranged on the inner side of the detection plate, a measuring plate handle is arranged on the inner side of the measuring plate inner groove, a measuring plate through hole is arranged on the inner side of the detection plate, a guide block is arranged at the upper end of the detection plate, and a movable measuring block is arranged on the inner ring of the guide block, the lower end of the measuring post rod is provided with a bottom end cone.

The pressure measuring plate is arranged in a cylindrical structure, the measuring handles are arranged in a fan-shaped structure, the depth of each measuring handle is the same as the thickness of the pressure measuring plate, the number of the measuring handles is four, and the number of the anti-skid layers is the same as the number of the measuring handles; after the thickness detection device is assembled and the measurement pole is aligned to the detection pot hole, the user holds the measurement handle with both hands, then applies vertical downward acting force to the pressurized survey board, at this moment, the pressurized survey board carries out vertical downward movement under the effect of pressure, and then drives the vertical downward movement of measurement pole, through the setting of skid resistant course, be used for avoiding the user to carry out the skidding of the in-process hand of applying pressure to the pressurized survey board, and then improve the security of thickness detection device in the use.

The measuring column rod is arranged in a cylindrical structure, the number of the measuring movable grooves is four, the four measuring movable grooves are symmetrically arranged around the center of the measuring column rod, the size of each measuring movable groove is matched with that of each measuring movable block, and the diameter of each measuring column rod is the same as that of the through hole of the measuring plate; after the detection plate is stably placed at the position of the upper end of the dug detection pit hole, the measuring movable block is aligned and slowly inserted into the measuring movable groove, so that the sliding connection between the measuring post rod and the guide block is realized, and a channel is provided for the sliding of the measuring movable block through the arrangement of the measuring movable groove.

The inspection device comprises an inspection plate, an inspection base layer, scale inner grooves, scale lines and an inspection base layer, wherein the inspection window is made of transparent plastic with an arc-shaped structure, the four inspection windows are arranged on the inspection window, the number of the scale inner grooves is equal to that of the inspection window, the scale inner grooves are arranged at the rear end of the inspection window, the number of the scale lines is equal to that of the inspection window, and the thicknesses of the inspection plate and the inspection base layer are removed by the numerical values of the scale lines; through the setting of scale mark, a detection for detecting hole thickness is dug, through setting up the scale mark in the inside of scale inside groove, can avoid measuring the pole in the wearing and tearing of slip in-process to the scale mark, and then avoid causing the fuzziness of scale mark because of long-term wearing and tearing, simultaneously through setting up four scale marks, make its measuring data more have contrast nature and referential, also conveniently read the numerical value that detects from the angle of difference, and then improve the accuracy and the flexibility that detect, setting through the observation window, a numerical value for conveniently reading the scale mark, the thickness that the pick-up plate detected the bottom has been got rid of in addition to the numerical value through the scale mark, the person of facilitating the use directly obtains measuring data.

The measuring device comprises a connecting column, a measuring column rod, an inner groove, a measuring column rod and a measuring column, wherein the connecting column is arranged in a cylindrical structure, the connecting column and the measuring column rod are integrally formed, an outer ring of the connecting column is provided with an external thread, the height of the connecting column is the same as the depth of the connecting inner groove, an inner ring of the connecting inner groove is provided with an internal thread matched with the connecting column, and the height of the connecting column is one half of the thickness of a pressed plate; when thickness detection is needed, the connecting column is inserted into the connecting inner groove and then in threaded connection, so that the compression testing plate is connected with the measuring column rod, and after detection is finished, the compression testing plate is separated from the measuring column rod, and therefore assembly and disassembly of the thickness detection device are achieved.

The overlooking cross section of the detection plate is square, the thickness of the detection bottom layer is one fourth of the thickness of the detection plate, the side length of the detection bottom layer is the same as that of the detection plate, the through holes of the detection plate are through holes with cylindrical structures, the number of the internal grooves of the detection plate is two, the number of handles of the detection plate is the same as that of the internal grooves of the detection plate, the handles of the detection plate are movably connected with the corresponding internal grooves of the detection plate through torsion springs, the depth of the internal grooves of the detection plate is the same as that of the handles of the detection plate, the width of the internal grooves of the detection plate is the same as that of the handles of the detection plate, and the length of the internal grooves of the detection plate is the same as that of the handles of the detection plate; when needing to carry out thickness detection, rotate two survey board handles from corresponding survey board inside groove respectively and erect, then hold the survey board handle and place the pick-up plate steadily in the position of digging detection pothole upper end, detect the bottom and contact the laminating with ground this moment, through the setting of survey board handle, conveniently remove the pick-up plate, and then improve the flexibility that thickness detection device used.

The guide blocks are arranged in a cylindrical hollow structure, the number of the guide blocks is two, the two guide blocks are symmetrically arranged, the inner ring of each guide block is provided with four measuring movable blocks, and the length of each measuring movable block is the same as that of each guide block; through the setting of guide block for the supplementary survey post slides and gets into survey board through-hole, and then improves and measures the gliding stability of post.

The bottom end cone is arranged in a conical structure, the top end of the bottom end cone is fixedly connected with the bottom end of the measuring post rod, the radius of the bottom end cone is the same as that of the measuring post rod, and the vertical height of the bottom end cone is the same as that of the guide block; the vertical height of the bottom end cone is the same as the height of the guide block, so that height data of the guide block at the upper end of the detection plate can be offset, and the numerical value of the scale mark can be conveniently and directly read.

The beneficial effects of the utility model are: when the thickness detection device is assembled and the measurement pole is aligned with the detection pot hole, a user holds the measurement handle with two hands, then applies a vertically downward acting force to the compression plate, at the moment, the compression plate moves vertically downward under the action of pressure so as to drive the measurement pole to move vertically downward, through the arrangement of the anti-slip layer, the slip of the hand of the user in the process of applying pressure to the compression plate is avoided, the safety of the thickness detection device in the use process is improved, after the detection plate is stably placed at the position of the upper end of the dug detection pot hole, the measurement movable block is aligned and slowly inserted into the measurement movable groove, the sliding connection of the measurement pole and the guide block is further realized, through the arrangement of the measurement movable groove, a channel is provided for the sliding of the measurement movable block, through the arrangement of the scale mark line, the thickness detection of the dug detection pot hole is realized, the scale marks are arranged in the scale inner grooves, so that the abrasion of the measuring column rod to the scale marks in the sliding process can be avoided, the blurring of the scale marks caused by long-term abrasion is avoided, meanwhile, the four scale marks are arranged, the measured data have higher contrast and reference, the detected numerical values can be read from different angles conveniently, the detection accuracy and flexibility are improved, the numerical values of the scale marks can be read conveniently through the arrangement of an observation window, the thickness of the detection plate and the detection bottom layer is removed through the numerical values of the scale marks, a user can obtain the measured data directly, when the thickness detection is needed, a connecting column is inserted into the connecting inner grooves and then is in threaded connection, the connection between the compression plate and the measuring column rod is realized, after the detection is finished, the compression plate and the measuring column rod are separated from each other, and the assembly and disassembly of the thickness detection device are realized, when needs carry out thickness detection, rotate two survey board handles from corresponding survey inboard inside groove respectively and erect, then hold the survey board handle and place the pick-up plate steadily in the position of digging detection pothole upper end, detect the bottom and contact the laminating with ground this moment, through the setting of survey board handle, conveniently remove the pick-up plate, and then improve the flexibility that thickness detection device used, through the setting of guide block, be used for the slip entering of auxiliary measurement post pole survey board through-hole, and then improve the gliding stability of measurement post pole.

The parts of the device not involved are the same as or can be implemented using prior art.

Drawings

FIG. 1 is a schematic front view of the present invention;

FIG. 2 is a schematic perspective view of the detection plate of the present invention;

FIG. 3 is a front view of the measuring mast of the present invention;

FIG. 4 is a schematic cross-sectional view of a measurement mast according to the present invention;

FIG. 5 is a schematic bottom view of the pressure plate of the present invention;

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

FIG. 7 is a schematic top view of the guide block of the present invention;

in the figure: 1. a pressure-measuring plate; 11. measuring the grip; 12. an anti-slip layer; 13. connecting the inner grooves; 2. measuring a post rod; 21. measuring the movable groove; 22. an observation window; 23. a graduated inner groove; 24. scale lines; 25. connecting columns; 3. detecting a plate; 31. detecting the bottom layer; 32. measuring an inner groove of the plate; 33. measuring a plate handle; 34. detecting a plate through hole; 4. a guide block; 41. measuring the movable block; 5. a bottom end cone.

Detailed Description

Referring to fig. 1-7, the present invention provides the following technical solutions: a thickness detection device for road engineering supervision comprises a pressure-bearing detection plate 1, a measurement post rod 2 and a detection plate 3, wherein the inner side of the pressure-bearing detection plate 1 is provided with a measurement handle 11, the inner side of the pressure-bearing detection plate 1 is provided with an anti-skid layer 12, the inner side of the pressure-bearing detection plate 1 is provided with a connection inner groove 13, the inner side of the measurement post rod 2 is provided with a measurement movable groove 21, the inner side of the measurement post rod 2 is provided with an observation window 22, the inner side of the measurement post rod 2 is provided with a scale inner groove 23, the inner side of the scale inner groove 23 is provided with scale lines 24, the upper end of the measurement post rod 2 is provided with a connection post 25, the lower end of the detection plate 3 is provided with a detection bottom layer 31, the inner side of the detection plate 3 is provided with a measurement plate inner groove 32, the inner side of the measurement plate 32 is provided with a measurement plate handle 33, and the inner side of the detection plate 3 is provided with a measurement plate through hole 34, the upper end of the detection plate 3 is provided with a guide block 4, the inner ring of the guide block 4 is provided with a measuring movable block 41, and the lower end of the measuring post rod 2 is provided with a bottom end cone 5.

In this embodiment: the pressure measuring plate 1 is arranged in a cylindrical structure, the measuring grips 11 are arranged in a fan-shaped structure, the depth of each measuring grip 11 is the same as the thickness of the pressure measuring plate 1, the number of the measuring grips 11 is four, and the number of the anti-skid layers 12 is the same as the number of the measuring grips 11; after assembling thickness detection device and measuring post pole 2 and aim at the detection pothole, the user holds measurement handle 11 with both hands, then applys perpendicular decurrent effort to pressurized survey board 1, at this moment pressurized survey board 1 carries out perpendicular decurrent removal under the effect of pressure, and then drives and measures the perpendicular decurrent removal of post pole 2, through the setting of skid resistant course 12, be used for avoiding the user to carry out the skidding of the in-process hand of exerting pressure to pressurized survey board 1, and then improve the security of thickness detection device in the use.

The measuring post rod 2 is arranged in a cylindrical structure, the number of the measuring movable grooves 21 is four, the four measuring movable grooves 21 are symmetrically arranged around the center of the measuring post rod 2, the size of each measuring movable groove 21 is matched with that of each measuring movable block 41, and the diameter of the measuring post rod 2 is the same as that of the measuring plate through hole 34; after the detection plate 3 is stably placed at the position of the upper end of the dug detection pit, the measurement movable block 41 is aligned and slowly inserted into the measurement movable groove 21, so that the sliding connection between the measurement post rod 2 and the guide block 4 is realized, and a channel is provided for the sliding of the measurement movable block 41 through the arrangement of the measurement movable groove 21.

The observation windows 22 are made of transparent plastics with circular arc structures, the observation windows 22 are totally provided with four blocks, the number of the scale inner grooves 23 is the same as that of the observation windows 22, the scale inner grooves 23 are arranged at the rear ends of the observation windows 22, the number of the scale lines 24 is the same as that of the observation windows 22, and the thickness of the detection plate 3 and the thickness of the detection bottom layer 31 are removed from the numerical values of the scale lines 24; through the setting of scale mark 24, a detection for being dig and detect pot hole thickness, through setting up scale mark 24 in the inside of scale inside groove 23, can avoid measuring the wearing and tearing of post 2 to scale mark 24 at the slip in-process, and then avoid causing the fuzziness of scale mark 24 because of long-term wearing and tearing, simultaneously through setting up four scale marks 24, make its measuring data more have contrast nature and referential, also conveniently read the numerical value that detects from the angle of difference, and then improve the accuracy and the flexibility that detect, through the setting of observation window 22, a numerical value for conveniently reading scale mark 24, the thickness that pick-up plate 3 and detection bottom 31 has been got rid of to numerical value through scale mark 24, the person of facilitating the use directly obtains measured data.

The connecting column 25 is of a cylindrical structure, the connecting column 25 and the measuring column rod 2 are integrally formed, an outer ring of the connecting column 25 is provided with an external thread, the height of the connecting column 25 is the same as the depth of the connecting inner groove 13, an inner ring of the connecting inner groove 13 is provided with an internal thread matched with the connecting column 25, and the height of the connecting column 25 is one half of the thickness of the pressure measuring plate 1; when thickness detection needs to be carried out, the connecting column 25 is inserted into the connecting inner groove 13 and then is in threaded connection, so that the connection between the pressure-bearing measuring plate 1 and the measuring column rod 2 is realized, and after the detection is finished, the pressure-bearing measuring plate 1 and the measuring column rod 2 are separated from each other, so that the assembly and the disassembly of the thickness detection device are realized.

The overlooking cross section of the detection plate 3 is square, the thickness of the detection bottom layer 31 is one fourth of the thickness of the detection plate 3, the side length of the detection bottom layer 31 is the same as that of the detection plate 3, the detection plate through holes 34 are through holes with cylindrical structures, the number of the detection plate internal grooves 32 is two, the number of the detection plate handles 33 is the same as that of the detection plate internal grooves 32, the detection plate handles 33 are movably connected with the corresponding detection plate internal grooves 32 through torsion springs, the depth of the detection plate internal grooves 32 is the same as that of the detection plate handles 33, the width of the detection plate internal grooves 32 is the same as that of the detection plate handles 33, and the length of the detection plate internal grooves 32 is the same as that of the detection plate handles 33; when needing to carry out thickness detection, rotate two survey board handles 33 from corresponding survey board inside groove 32 respectively and erect, then hold survey board handle 33 with the steady position of placing in the detection pothole upper end of digging of pick-up plate 3, detect bottom 31 and ground contact laminating this moment, through the setting of survey board handle 33, conveniently remove pick-up plate 3, and then improve the flexibility that thickness detection device used.

The guide blocks 4 are arranged in a cylindrical hollow structure, the number of the guide blocks 4 is two, the two guide blocks 4 are symmetrically arranged, four measuring movable blocks 41 are arranged on the inner ring of each guide block 4, and the length of each measuring movable block 41 is the same as that of each guide block 4; through the setting of guide block 4 for the supplementary survey post pole 2 slides and gets into survey board through-hole 34, and then improves the gliding stability of survey post pole 2.

The bottom end cone 5 is arranged in a conical structure, the top end of the bottom end cone 5 is fixedly connected with the bottom end of the measuring post rod 2, the radius of the bottom end cone 5 is the same as that of the measuring post rod 2, and the vertical height of the bottom end cone 5 is the same as that of the guide block 4; the vertical height of the bottom end cone 5 is the same as the height of the guide block 4, so that the height data of the guide block 4 at the upper end of the detection plate 3 are offset, and the numerical value of the scale mark 24 can be conveniently and directly read.

The working principle and the using process of the utility model are as follows: when the thickness detection is needed, the thickness detection device is firstly placed near the dug detection pit, then the bottom and the periphery of the dug detection pit are cleaned, the diameter of the dug detection pit is not smaller than the diameter of the guide block 4, then the connecting column 25 is inserted into the connecting inner groove 13, then the threaded connection is carried out, further the connection between the pressure detection plate 1 and the measurement column rod 2 is realized, then the two detection plate handles 33 are respectively rotated and erected from the corresponding detection plate inner grooves 32, then the detection plate 3 is stably placed at the position of the upper end of the dug detection pit by holding the detection plate handles 33, at the moment, the detection bottom layer 31 is contacted and attached with the ground, the guide block 4 at the lower end of the detection bottom layer 31 is inserted into the inner side of the dug detection pit, the detection plate 3 is conveniently moved by the arrangement of the detection plate handles 33, then the measurement movable block 41 is aligned and slowly inserted into the measurement movable groove 21, further realizing the sliding connection of the measuring column rod 2 and the guide block 4, providing a channel for the sliding of the measuring movable block 41 through the arrangement of the measuring movable groove 21, then holding the measuring handle 11 with both hands of a user, then applying a vertical downward acting force to the pressure-bearing measuring plate 1, then moving the pressure-bearing measuring plate 1 vertically downward under the action of pressure, further driving the measuring column rod 2 vertically downward to move, through the arrangement of the anti-slip layer 12, avoiding the slipping of the hand of the user in the process of applying pressure to the pressure-bearing measuring plate 1, improving the safety of the thickness detection device in the use process, through the arrangement of the guide block 4, assisting the measuring column rod 2 to slide into the measuring plate through hole 34, improving the stability of the sliding of the measuring column rod 2, through the vertical height of the bottom end cone 5 being the same as the height of the guide block 4, offsetting the height data of the guide block 4 positioned at the upper end of the detection plate 3, the numerical value of the scale mark 24 is conveniently and directly read, the thickness of the dug pit is detected through the arrangement of the scale mark 24, the scale mark 24 is arranged in the scale inner groove 23, can avoid the abrasion of the measuring post rod 2 to the scale mark 24 in the sliding process, avoid the blurring of the scale mark 24 caused by long-term abrasion, meanwhile, the four scale marks 24 are arranged, so that the measured data has higher contrast and reference, the detected numerical values can be conveniently read from different angles, the detection accuracy and flexibility are improved, and through the arrangement of the observation window 22, is used for conveniently reading the numerical value of the scale mark 24, the thickness of the detection plate 3 and the detection bottom layer 31 is removed through the numerical value of the scale mark 24, a user can conveniently and directly obtain the measured data, after the detection is finished, the pressure measuring plate 1 and the measuring column rod 2 are separated from each other, and the thickness detection device is assembled and disassembled.

Claims

1. The utility model provides a thickness detection device is used in highway engineering supervision which characterized in that: comprises a pressure measuring plate, a measuring post rod and a detecting plate, wherein the inner side of the pressure measuring plate is provided with a measuring grip, the inner side of the pressure-measuring plate is provided with an anti-slip layer, the inner side of the pressure-measuring plate is provided with a connecting inner groove, the inner side of the measuring post rod is provided with a measuring movable groove, the inner side of the measuring post rod is provided with an observation window, the inner side of the measuring post rod is provided with a scale inner groove, the inner side of the scale inner groove is provided with scale marks, the upper end of the measuring post rod is provided with a connecting post, the lower end of the detecting plate is provided with a detecting bottom layer, an inner side of the detection plate is provided with a detection plate inner groove, the inner side of the detection plate inner groove is provided with a detection plate handle, a detection plate through hole is arranged on the inner side of the detection plate, a guide block is arranged at the upper end of the detection plate, the inner ring of the guide block is provided with a measuring movable block, and the lower end of the measuring post rod is provided with a bottom end cone.

2. The thickness detecting device for road engineering supervision according to claim 1, wherein: the pressure measuring plate is of a cylindrical structure, the measuring handles are of a fan-shaped structure, the depth of the measuring handles is the same as the thickness of the pressure measuring plate, the number of the measuring handles is four, and the number of the anti-skid layers is the same as that of the measuring handles.

3. The thickness detecting device for road engineering supervision according to claim 1, wherein: the measuring column rod is arranged in a cylindrical structure, the number of the measuring movable grooves is four, the measuring movable grooves are symmetrically arranged at the circle center of the measuring column rod, the size of the measuring movable grooves is matched with the size of the measuring movable block, and the diameter of the measuring column rod is the same as that of the measuring plate through hole.

4. The thickness detecting device for road engineering supervision according to claim 1, wherein: the inspection window is of a transparent plastic structure, the inspection window is provided with four pieces, the number of the scale inner grooves is the same as that of the inspection window, the scale inner grooves are formed in the rear end of the inspection window, the number of the scale lines is the same as that of the inspection window, and the thicknesses of the inspection plate and the inspection bottom layer are removed according to the numerical values of the scale lines.

5. The thickness detecting device for road engineering supervision according to claim 1, wherein: the spliced pole sets up for cylindrical structure, the spliced pole sets up for integrated into one piece with the measuring post pole, the outer lane of spliced pole is provided with the external screw thread, the height of spliced pole is the same with the degree of depth of connecting the inside groove, the inner circle of connecting the inside groove be provided with spliced pole assorted internal thread, the height of spliced pole is half of the board thickness of being pressed.

6. The thickness detecting device for road engineering supervision according to claim 1, wherein: the overlooking cross section of the detection plate is square, the thickness of the detection bottom layer is one fourth of the thickness of the detection plate, the side length of the detection bottom layer is the same as that of the detection plate, the through holes of the detection plate are cylindrical through holes, the number of the internal grooves of the detection plate is two, the number of the handles of the detection plate is the same as that of the internal grooves of the detection plate, the handles of the detection plate are movably connected with the corresponding internal grooves of the detection plate through torsion springs, the depth of the internal grooves of the detection plate is the same as that of the handles of the detection plate, the width of the internal grooves of the detection plate is the same as that of the handles of the detection plate, and the length of the internal grooves of the detection plate is the same as that of the handles of the detection plate.

7. The thickness detecting device for road engineering supervision according to claim 1, wherein: the guide block is cylindrical hollow structure setting, the guide block is provided with two altogether, two the guide block symmetry sets up, every the inner circle of guide block all is provided with four and measures the movable block, the length of measuring the movable block is the same with the length of guide block.

8. The thickness detecting device for road engineering supervision according to claim 1, wherein: the bottom end cone is arranged in a conical structure, the top end of the bottom end cone is fixedly connected with the bottom end of the measuring post rod, the radius of the bottom end cone is the same as that of the measuring post rod, and the vertical height of the bottom end cone is the same as that of the guide block.