CN114659480B

CN114659480B - Paving thickness measuring device

Info

Publication number: CN114659480B
Application number: CN202210429432.9A
Authority: CN
Inventors: 刘廷杰; 邓合一; 于海超; 朱海洋; 赵伟忠
Original assignee: Kunshan Traffic Engineering Development Center
Current assignee: Kunshan Traffic Engineering Development Center
Priority date: 2022-04-22
Filing date: 2022-04-22
Publication date: 2023-02-28
Anticipated expiration: 2042-04-22
Also published as: CN114659480A

Abstract

The invention relates to the technical field of pavers, in particular to a paving thickness measuring device which comprises two mounting frames, wherein a first slide rail, a supporting arm and a driving assembly are arranged on the two mounting frames, a second slide rail, a plurality of shearing fork pieces, a plurality of detection assemblies and an adjusting assembly are arranged at the bottom of the supporting arm, all the shearing fork pieces comprise two connecting rods, the detection assemblies below the supporting arm are adjusted to be at a proper measuring height through the driving assembly, so that the measuring precision is ensured, the detection assemblies can be matched with pavements of different paving sizes of a paver through the adjusting assembly, the detection area is expanded, the adaptability of the detecting device is improved, the distances between every two adjacent detection assemblies are equal, the detecting precision is ensured, finally, the measuring data on the detection assemblies are compared for analysis, the measuring precision is further ensured, and the detection assemblies on the pavements before and after paving are respectively measured simultaneously to obtain the measured thickness.

Description

Paving thickness measuring device

Technical Field

The invention relates to the technical field of pavers, in particular to a paving thickness measuring device.

Background

Traditional paver needs to measure the thickness that paves when the construction that paves, generally use a bayonet measuring device who makes in advance at the in-process of operation, thereby the staff selectively inserts bayonet measuring device into the ground that paves at the construction operation in-process that paves and measure the thickness that paves, but measured time and position all are by the automatic leading choice of constructor, and measured point is the measurement of single point, the detection mode has inefficiency, the poor technical problem of representativeness, thereby influence the precision that detects, traditional detection mode, lack continuous detection and real-time feedback, can't satisfy the detection requirement in the work progress.

Chinese patent CN202022379118.3 discloses a measuring device paves thick based on thing networking, includes: the mounting arm mechanism is mounted on the paver; the paving front pull rope detection module is used for detecting the measurement height from the pavement before paving; the system comprises a paving rear pull rope detection module, a paving rear pull rope detection module and a paving rear pull rope detection module, wherein the paving rear pull rope detection module is used for detecting the measurement height of a road surface after paving; the processor module is used for receiving the measured height from the road surface before paving and the measured height from the road surface after paving so as to calculate the paving thickness of the paver; this patent will pave through installation arm mechanism and stay cord detection module installs on the paver before stay cord detection module and the back stay cord detection module that paves to through the measurement height on real-time detection distance pavement before paving, the measurement of the thickness that paves to the paver is highly realized apart from the measurement on the back pavement that paves, this patent has solved the technical problem function that real-time continuous monitoring feedbacks, but it also is to the single point that paves to measure, can't measure to the whole measuring face that paves, thereby influence measuring precision.

Disclosure of Invention

In view of this, it is necessary to provide a paving thickness measuring apparatus in view of the problems of the related art.

In order to solve the problems of the prior art, the invention adopts the technical scheme that:

the utility model provides a paving thickness measurement device, including two mounting brackets, all be provided with first slide rail on two mounting brackets, the support arm with be used for driving the drive assembly that the support arm goes up and down on the mounting bracket, first slide rail sets up along the direction of height of mounting bracket, drive assembly is located the top of mounting bracket, the support arm is rectangle platelike structure, the support arm is horizontal state slidable and is located first slide rail, and the support arm is connected with the drive assembly transmission, the bottom of support arm is provided with the second slide rail, a plurality of scissors fork spare, a plurality of determine module and adjusting part, the second slide rail is located the bottom of support arm and sets up along its length direction, all determine module equal slidable are located the second slide rail, adjusting part is located the bottom central authorities of support arm, all scissors fork spare all include two connecting rods, the mutual pin joint in middle part of two connecting rods, the middle part of all scissors fork spare overlaps respectively on determine module and all determine module, and the mutual pin joint in top and the bottom of two adjacent connecting rods of scissors fork spare, one of them determine module and adjust the subassembly transmission and be connected.

Preferably, all detection assemblies all include slider and range finding sensor, and the top of slider is provided with the first draw runner that matches each other with the second slide rail, and the bottom of slider is provided with the mounting hole, and the mounting hole is located to the range finding sensor cover, all is provided with the rotation axis on the lateral wall of all sliders, cuts the fork spare cover and locates on the rotation axis.

Preferably, the adjusting assembly comprises a first rotary driving motor, a first lead screw and a fixed block, the fixed block is located at the center of the bottom of the supporting arm, a fixed shaft is arranged on the side wall of the fixed block, the shearing fork piece is sleeved on the fixed shaft, the first lead screw is sleeved on the fixed block in a horizontal state, the first rotary driving motor is located on the supporting arm, the first lead screw is in transmission connection with the first rotary driving motor, the first lead screw penetrates through a sliding block located on a detecting assembly beside the fixed block, and the first lead screw is in threaded fit with the sliding block.

Preferably, the adjusting part still includes the fixed plate, the hold-in range, dodge groove and two synchronizing wheels, the fixed plate is the top that vertical state is located the support arm, dodge the side that the trench is located the fixed plate, a rotary drive motor fixed connection is on the fixed plate, and a rotary drive motor's output shaft runs through the fixed plate, two synchronizing wheels overlap respectively and locate first rotary drive motor's output shaft and first lead screw on, the hold-in range passes and dodges the groove and overlap and locate two synchronizing wheels on.

Preferably, the fixed block and the detection assembly in transmission connection with the fixed block are respectively provided with a distance sensor and a receiver.

Preferably, both ends on the width direction of support arm all are provided with the bracing piece that is vertical state, bracing piece and support arm sliding fit are provided with elastic component and pressure sensor on the bracing piece.

Preferably, the bottom of each of the two support rods is provided with a pulley.

Preferably, the drive assembly includes second rotary driving motor and second lead screw, the top and the bottom of mounting bracket are provided with first mounting panel and the second mounting panel that is the horizontality and sets up respectively, the second lead screw is rotatable the connection between first mounting panel and second mounting panel of vertical state, the second lead screw run through the support arm and rather than screw-thread fit, second rotary driving motor is located the top of first mounting panel, and first rotary driving motor's output shaft runs through first mounting panel and second lead screw fixed connection.

Preferably, all be provided with the backup pad on the support arm on two mounting brackets, the backup pad is located one side that is close to the mounting bracket on the support arm, and the both sides of support arm all are provided with the mount, and the mount is the triangle-shaped structure, and one side of keeping away from the support arm in the backup pad is provided with the second draw runner that matches each other with first slide rail.

Preferably, the support arms of the two mounting frames are provided with wireless communication modules.

Compared with the prior art, the beneficial effect of this application is:

1. this application is adjusted the detection subassembly of support arm below to suitable measurement height through drive assembly, ensures the measuring precision.

2. This application is through adjustment assembly's setting for a plurality of determine module can match the road surface of the different size of paving of paver, the area that the extension detected, improve detection device's suitability, two determine module's that are adjacent simultaneously interval equals, make the precision that detects obtain the guarantee, carry out the analysis through comparing the measured data on a plurality of determine module at last, thereby further guarantee measuring precision, determine simultaneously to the road surface before the paving and the road surface after the paving through the determine module on two mounting brackets, thereby obtain measured thickness.

3. This application has driven the synchronizing wheel rather than being connected through a rotary driving motor, drives the hold-in range through the synchronizing wheel and rotates, and the hold-in range drives first lead screw and rotates, through the displacement distance of this structure but furthest's increase slider.

4. This application is through the setting of distance sensor and receiver for the displacement distance of determine module can be by accurate discernment, thereby the convenience is controlled the displacement distance of determine module, makes the road surface that the matching paver that all determine modules can be better paves, thereby improves the precision that detects.

5. This application is through bracing piece, elastic component and pressure sensor's setting, and whether slope and roughness on distinguishable road surface are compared through the data with determine module measurement thickness, the measurement accuracy of the equipment of can furthering choosing.

6. This application is through the setting of pulley for the bottom of bracing piece and the contact on road surface reduce frictional dynamics, and the pulley does not influence the detection to whether slope and roughness on the road surface along with the roll on road surface, thereby prolongs the life of bracing piece.

7. This application can give the rear end with a plurality of determine module's data transmission through the setting of wireless communication module, through comparing of rear end to obtain measured data, can real-timely detect the road surface.

Drawings

FIG. 1 is a side view of the entirety of the present application;

FIG. 2 is a front view of the entirety of the present application;

FIG. 3 is a perspective view of the mounting bracket of the present application;

FIG. 4 is a perspective view of the support arm, adjustment assembly and detection assembly of the present application;

FIG. 5 is a perspective view of a portion of the support arm and adjustment assembly of the present application and an enlarged view thereof;

FIG. 6 is a perspective view of an adjustment assembly of the present application;

FIG. 7 is a perspective view of a support arm of the present application;

FIG. 8 is an enlarged view at A in FIG. 2 of the present application;

FIG. 9 is an enlarged view at B in FIG. 7 of the present application;

FIG. 10 is an enlarged view at C of FIG. 7 of the present application;

the reference numbers in the figures are:

1-a mounting frame; 1 a-a first slide rail; 1 b-a drive assembly; 1b 1-a second rotary drive motor; 1b 2-a second screw rod; 1 c-a first mounting plate; 1 d-a second mounting plate;

2-a support arm; 2 a-a second slide rail; 2 b-a scissor; 2b 1-connecting rod; 2 c-a detection component; 2c 1-a slider; 2c2 — a first slider; 2c 3-mounting holes; 2c 4-rotation axis; 2c 5-a range sensor; 2 d-a regulating component; 2d1 — a first rotary drive motor; 2d 2-a first lead screw; 2d 3-fixing block; 2d 4-fixed axis; 2d 5-fixing plate; 2d 6-synchronous belt; 2d 7-avoidance slot; 2d 8-synchronizing wheel; 2 e-a distance sensor; 2e 1-a receiver; 2 f-a support bar; 2f 1-elastic member; 2f 2-pressure sensor; 2f 3-pulley; 2 g-a support plate; 2g 1-a fixing frame; 2g 2-second runner; 2 h-wireless communication module;

3-spreading machine.

Detailed Description

For further understanding of the features and technical means of the present invention, as well as the specific objects and functions attained by the present invention, the present invention will be described in further detail with reference to the accompanying drawings and detailed description.

As shown in fig. 1-10, the present application provides:

the utility model provides a measuring device for paving thickness measurement, including two mounting brackets 1, all be provided with first slide rail 1a on two mounting brackets 1, support arm 2 and be used for driving drive assembly 1b that support arm 2 goes up and down on mounting bracket 1, first slide rail 1a sets up along mounting bracket 1's direction of height, drive assembly 1b is located the top of mounting bracket 1, support arm 2 is rectangular plate-like structure, support arm 2 is horizontal state slidable and is located first slide rail 1a, and support arm 2 is connected with drive assembly 1b transmission, the bottom of support arm 2 is provided with second slide rail 2a, a plurality of fork spare 2b, a plurality of determine module 2c and adjusting part 2d, second slide rail 2a is located the bottom of support arm 2 and sets up along its length direction, all determine module 2c all slidable are located second slide rail 2a, adjusting part 2d is located the bottom central authorities of support arm 2, all fork spare 2b all include two connecting rod 2b1, two connecting rod 2b 1's middle part is pinned joint each other, the middle part cover of two connecting rod 2b1 of all fork spares is located adjust module 2d and adjust module 2 b's 2d and the top of the pin joint subassembly 2b and the adjacent determine module 2b, wherein the pin joint subassembly 2b and the connecting rod 2 d.

Based on above-mentioned embodiment, single point that paves is measured, can't measure to whole measurement face that paves to influence measuring precision, the technical problem that this application wants to solve is how to measure whole measurement face that paves, improves measurement accuracy. Therefore, the two mounting frames 1 are respectively mounted at two ends of a paver 3, so that the paved road surface and the paved road surface of a plurality of detection assemblies 2c on the mounting frames 1 can be measured, firstly, the height of the support arm 2 on the mounting frames 1 is adjusted through the driving assembly 1b, the support arm 2 moves along the direction of the first slide rail 1a, the detection assemblies 2c below the support arm 2 are conveniently adjusted to the proper measurement height, the measurement precision is ensured, then, the adjusting assembly 2d is started, one detection assembly 2c is driven to move along the direction of the second slide rail 2a through the adjusting assembly 2d, fork pieces 2b are sleeved on the adjusting assembly 2d and all detection assemblies 2c, the top ends and the bottom ends of the connecting rods 2b1 of two adjacent fork pieces 2b are mutually pinned, and the movement of one detection assembly 2c drives the two connecting rods 2b1 of the fork pieces 2b to swing, thereby all scissor 2b have been driven, make all covers to be equipped with scissor 2 b's detection subassembly 2c all to remove along the direction of second slide rail 2a, and interval between two adjacent detection subassemblies 2c keeps equal, setting through adjusting assembly 2d, make a plurality of detection subassemblies 2c can match the road surface of the 3 different paving sizes of paver, the area that the extension detected, improve detection device's suitability, two adjacent detection subassembly 2 c's interval equals simultaneously, make the precision that detects secure, at last carry out the analysis through comparing the measured data on a plurality of detection subassemblies 2c, thereby further guarantee measuring precision, detection subassembly 2c through two mounting brackets 1 respectively to the road surface before the paving and the road surface after the paving measure simultaneously, thereby obtain measuring thickness.

As shown in fig. 4-6 and 8, further:

all detection components 2c all include slider 2c1 and range finding sensor 2c5, and the top of slider 2c1 is provided with the first draw runner 2c2 that matches each other with second slide rail 2a, and the bottom of slider 2c1 is provided with mounting hole 2c3, and range finding sensor 2c5 cover is located in mounting hole 2c3, all is provided with rotation axis 2c4 on the lateral wall of all sliders 2c1, and the rotation axis 2c4 is located to scissors spare 2b cover.

Based on the above-mentioned embodiments, the technical problem that the present application intends to solve is how to mount the detecting component 2c on the supporting arm 2. For this reason, this application is through the setting of first draw runner 2c2 for slider 2c1 can remove along the direction of second slide rail 2a, through ranging sensor 2c5 and mounting hole 2c 3's setting, makes ranging sensor 2c5 can overlap the bottom of locating slider 2c1, thereby convenient installation and the change to surveying the book sensor, makes things convenient for ranging sensor 2c5 to measure the road surface simultaneously, rotation axis 2c4 is convenient to be connected with cutting fork spare 2 b.

As shown in fig. 4-6, 8 and 10, further:

the adjusting component 2d comprises a first rotary driving motor 2d1, a first screw rod 2d2 and a fixed block 2d3, the fixed block 2d3 is located at the center of the bottom of the supporting arm 2, a fixed shaft 2d4 is arranged on the side wall of the fixed block 2d3, the scissor element 2b is sleeved on the fixed shaft 2d4, the first screw rod 2d2 is sleeved on the fixed block 2d3 in a horizontal state, the first rotary driving motor 2d1 is located on the supporting arm 2, the first screw rod 2d2 is in transmission connection with the first rotary driving motor 2d1, the first screw rod 2d2 penetrates through a sliding block 2c1 located on a detection component 2c beside the fixed block 2d3, and the first screw rod 2d2 is in threaded fit with the sliding block 2c 1.

Based on the above embodiments, the technical problem to be solved by the present application is how to move one of the detecting assemblies 2c by the adjusting assembly 2 d. For this reason, this application drives the rotation of first lead screw 2d2 through starting first rotary driving motor 2d1, the rotation of first lead screw 2d2 has driven the removal rather than screw-thread fit's slider 2c1, make slider 2c1 remove along the direction of second slide rail 2a, simultaneously because slider 2c 1's rotation axis 2c4 and fixed axle 2d4 of fixed block 2d3 all overlap and be equipped with scissors spare 2b, and scissors spare 2b is the pin joint each other, make the removal of detecting component 2c drive the removal of all scissors spare 2b, thereby driven the displacement of all detecting components 2c, still make the distance of two adjacent detecting components 2c displacements equal.

As shown in fig. 5, 6 and 10, further:

adjusting part 2d still includes fixed plate 2d5, hold-in range 2d6, dodge groove 2d7 and two synchronizing wheel 2d8, fixed plate 2d5 is the top that vertical state is located support arm 2, dodge groove 2d7 and be located the side of fixed plate 2d5, first rotary driving motor 2d1 fixed connection is on fixed plate 2d5, and first rotary driving motor 2d 1's output shaft runs through fixed plate 2d5, two synchronizing wheel 2d8 overlap respectively on locating first rotary driving motor 2d 1's output shaft and first lead screw 2d2, hold-in range 2d6 passes and dodges groove 2d7 and overlap and locate on two synchronizing wheel 2d 8.

Based on the above-mentioned embodiments, the technical problem that the present application intends to solve is how to drivingly connect the first lead screw 2d2 with the first rotary drive motor 2d 1. Therefore, the first rotary driving motor 2d1 is started, the output shaft of the first rotary driving motor 2d1 drives the synchronous wheel 2d8 connected with the output shaft, the synchronous wheel 2d8 drives the synchronous belt 2d6 to rotate, the synchronous belt 2d6 drives the synchronous wheel 2d8 on the first screw rod 2d2 to rotate, so that the first screw rod 2d2 is driven to rotate, and the first screw rod 2d2 drives the sliding block 2c1 to displace; if the first rotation driving motor 2d1 is installed below the support arm 2, the moving distance of the slider 2c1 is restricted to cause interference, and the moving distance of the slider 2c1 can be increased to the maximum extent by this configuration.

As shown in fig. 5, 6 and 8, further:

the fixed block 2d3 and the detection component 2c in transmission connection with the fixed block are respectively provided with a distance sensor 2e and a receiver 2e1.

Based on the above-mentioned embodiments, the technical problem that the present application intends to solve is how to precisely control the distance between the fixed block 2d3 and the detection assembly 2c drivingly connected thereto. For this reason, this application is through distance sensor 2e and receiver 2e 1's setting for detection module 2 c's displacement distance can be by accurate discernment, thereby convenient displacement distance to detection module 2c controls, makes the road surface that 3 paves of matching paver that all detection modules 2c can be better, thereby improves the precision that detects.

As shown in fig. 9, further:

both ends on the width direction of support arm 2 all are provided with the bracing piece 2f that is vertical state, bracing piece 2f and support arm 2 sliding fit, are provided with elastic component 2f1 and pressure sensor 2f2 on the bracing piece 2 f.

Based on the above embodiments, the technical problem that the present application intends to solve is how to further improve the accuracy of the measurement. For this reason, this application is through bracing piece 2f, elastic component 2f1 and pressure sensor 2f 2's setting, make support arm 2 drive its in-process and road surface contact of whereabouts at drive assembly 1b, along with paver 3's removal, make bracing piece 2f slide on the road surface along with paver 3, through two bracing pieces 2f on the support arm 2 width direction measure the roughness on the road surface that paves, through whether slope and roughness on elastic component 2f1 and the distinguishable road surface of pressure sensor 2f2, compare through the data with detection component 2c measurement thickness, the measurement accuracy of the equipment of choosing that can further.

As shown in fig. 4 and 9, further:

the bottoms of the two support rods 2f are provided with pulleys 2f3.

Based on the above embodiment, the supporting rod 2f may cause damage to the bottom of the supporting rod 2f in the process of contacting the road surface, and how to prolong the service life of the supporting rod 2f is the technical problem to be solved in the present application. For this reason, this application is through pulley 2f 3's setting for the bottom of bracing piece 2f and the contact on road surface reduce frictional dynamics, and whether the rolling of pulley 2f3 along with the road surface does not influence the detection to the road surface slope and roughness, thereby extension bracing piece 2 f's life.

As shown in fig. 3, further:

drive assembly 1b includes second rotary driving motor 1b1 and second lead screw 1b2, the top and the bottom of mounting bracket 1 are provided with first mounting panel 1c and the second mounting panel 1d that is the horizontality setting respectively, second lead screw 1b2 is rotatable the connection between first mounting panel 1c and second mounting panel 1d of vertical state, second lead screw 1b2 runs through support arm 2 and rather than screw-thread fit, second rotary driving motor 1b1 is located the top of first mounting panel 1c, and first rotary driving motor 2d 1's output shaft passes through first mounting panel 1c and second lead screw 1b2 fixed connection.

Based on the above embodiments, the technical problem to be solved by the present application is how the driving assembly 1b drives the supporting arm 2 to lift. For this reason, this application is through starting second rotary driving motor 1b1, second rotary driving motor 1b 1's output shaft has driven rather than fixed connection's second lead screw 1b 2's rotation, second lead screw 1b 2's rotation has driven rather than screw-thread fit's support arm 2's removal for support arm 2 removes along the direction of first slide rail 1a, thereby drives support arm 2 and goes up and down at mounting bracket 1, thereby adjusts the detection height of a plurality of determine module 2c of support arm 2 bottom.

As shown in fig. 3, 4 and 7, further:

all be provided with backup pad 2g on the support arm 2 on two mounting brackets 1, backup pad 2g is located support arm 2 and is close to one side of mounting bracket 1, and the both sides of support arm 2 all are provided with mount 2g1, and mount 2g1 is the triangle-shaped structure, and one side of keeping away from support arm 2 on backup pad 2g is provided with the second draw runner 2g2 that matches each other with first slide rail 1 a.

Based on the above embodiments, the technical problem that the present application intends to solve is how to connect the support arm 2 with the mounting bracket 1. For this reason, this application is through the setting of second draw runner 2g2 for backup pad 2g can drive support arm 2 and slide on first slide rail 1a, has strengthened the joint strength between backup pad 2g and the support arm 2 through setting up of mount 2g1, improves the stability of device operation.

As shown in fig. 7, further:

all be provided with wireless communication module 2h on the support arm 2 of two mounting brackets 1.

Based on the above-mentioned embodiments, the technical problem that the present application intends to solve is how to facilitate the transmission of data of the plurality of detection assemblies 2c on the support arm 2 to the rear end. For this reason, this application can give the rear end with a plurality of determine module 2 c's data transmission through wireless communication module 2 h's setting, through the comparison of rear end to obtain measuring data, can real-timely detect the road surface.

The above examples, which are intended to represent only one or more embodiments of the present invention, are described in greater detail and with greater particularity, and are not to be construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

1. The utility model provides a paving thickness measuring device, including two mounting brackets (1), a serial communication port, all be provided with first slide rail (1 a) on two mounting brackets (1), support arm (2) and be used for driving drive assembly (1 b) that support arm (2) go up and down on mounting bracket (1), first slide rail (1 a) sets up along the direction of height of mounting bracket (1), drive assembly (1 b) is located the top of mounting bracket (1), support arm (2) are rectangle platelike structure, support arm (2) are horizontal state slidable and are located first slide rail (1 a), and support arm (2) are connected with drive assembly (1 b) transmission, the bottom of support arm (2) is provided with second slide rail (2 a), a plurality of scissors spare (2 b), a plurality of detection component (2 c) and regulation component (2 d), second slide rail (2 a) are located the bottom of support arm (2) and set up along its length direction, all detection component (2 c) are all slidable and all are located second slide rail (2 a), adjust component (2 d) and are located the middle part of support arm (2) and all connect the pin joint in two middle part (2 b) of support arm (2) and connect the middle part (2 b) and all detection component (2 b) each other, all detection component (2 b), the top ends and the bottom ends of the connecting rods (2 b 1) of two adjacent scissors (2 b) are mutually pinned, and one detection component (2 c) is in transmission connection with the adjusting component (2 d);

all the detection assemblies (2 c) comprise sliders (2 c 1) and distance measuring sensors (2 c 5), first sliding strips (2 c 2) matched with the second sliding rails (2 a) are arranged at the tops of the sliders (2 c 1), mounting holes (2 c 3) are formed in the bottoms of the sliders (2 c 1), the distance measuring sensors (2 c 5) are sleeved in the mounting holes (2 c 3), rotating shafts (2 c 4) are arranged on the side walls of all the sliders (2 c 1), and the rotating shafts (2 c 4) are sleeved with the scissor pieces (2 b);

the adjusting assembly (2 d) comprises a first rotary driving motor (2 d 1), a first screw rod (2 d 2) and a fixed block (2 d 3), the fixed block (2 d 3) is located at the center of the bottom of the supporting arm (2), a fixed shaft (2 d 4) is arranged on the side wall of the fixed block (2 d 3), a scissor element (2 b) is sleeved on the fixed shaft (2 d 4), the first screw rod (2 d 2) is sleeved on the fixed block (2 d 3) in a horizontal state, the first rotary driving motor (2 d 1) is located on the supporting arm (2), the first screw rod (2 d 2) is in transmission connection with the first rotary driving motor (2 d 1), the first screw rod (2 d 2) penetrates through a sliding block (2 c 1) located on a detection assembly (2 c) beside the fixed block (2 d 3), and the first screw rod (2 d 2) is in threaded fit with the sliding block (2 c 1);

adjusting part (2 d) still includes fixed plate (2 d 5), hold-in range (2 d 6), dodge groove (2 d 7) and two synchronizing wheel (2 d 8), fixed plate (2 d 5) are the top that vertical state is located support arm (2), dodge the side that groove (2 d 7) are located fixed plate (2 d 5), a rotary driving motor (2 d 1) fixed connection is on fixed plate (2 d 5), and the output shaft of a rotary driving motor (2 d 1) runs through fixed plate (2 d 5), two synchronizing wheel (2 d 8) overlap respectively on the output shaft of a rotary driving motor (2 d 1) and first lead screw (2 d 2), hold-in range (2 d 6) pass and dodge groove (2 d 7) and overlap and locate on two synchronizing wheel (2 d 8).

2. A paving thickness measuring device according to claim 1, characterized in that the fixed block (2 d 3) and the detection assembly (2 c) in driving connection therewith are provided with a distance sensor (2 e) and a receiver (2 e 1), respectively.

3. A paving thickness measuring device according to claim 1, wherein both ends of the supporting arm (2) in the width direction are provided with vertical supporting rods (2 f), the supporting rods (2 f) are in sliding fit with the supporting arm (2), and the supporting rods (2 f) are provided with elastic members (2 f 1) and pressure sensors (2 f 2).

4. A paving thickness measuring device according to claim 3, characterized in that the bottom of both support bars (2 f) are provided with pulleys (2 f 3).

5. The paving thickness measuring device according to claim 1, wherein the driving assembly (1 b) comprises a second rotary driving motor (1 b 1) and a second screw rod (1 b 2), a first mounting plate (1 c) and a second mounting plate (1 d) which are arranged in a horizontal state are respectively arranged at the top end and the bottom end of the mounting rack (1), the second screw rod (1 b 2) is connected between the first mounting plate (1 c) and the second mounting plate (1 d) in a vertical state in a rotatable manner, the second screw rod (1 b 2) penetrates through the supporting arm (2) and is in threaded fit with the supporting arm, the second rotary driving motor (1 b 1) is positioned above the first mounting plate (1 c), and an output shaft of the first rotary driving motor (2 d 1) penetrates through the first mounting plate (1 c) and is fixedly connected with the second screw rod (1 b 2).

6. The paving thickness measuring device according to claim 1, characterized in that support plates (2 g) are arranged on the support arms (2) of the two mounting frames (1), the support plates (2 g) are positioned on one sides, close to the mounting frames (1), of the support arms (2), fixing frames (2 g 1) are arranged on two sides of the support arms (2), the fixing frames (2 g 1) are of triangular structures, and second slide bars (2 g 2) matched with the first slide rails (1 a) are arranged on one sides, far away from the support arms (2), of the support plates (2 g).

7. A paving thickness measuring device according to claim 1, characterized in that the supporting arms (2) of both mounting frames (1) are provided with wireless communication modules (2 h).