Thickness detection equipment for highway construction

Abstract

The invention discloses thickness detection equipment for highway construction, and relates to the technical field of highway thickness detection, the thickness detection equipment comprises a self-locking cart main body, a bearing plate is fixedly connected between the inner walls of one side of the self-locking cart main body, a dust collector is fixedly mounted on the upper surface of the bearing plate, and a drill bit shell is driven to move in the axial direction and rotate circumferentially. The self-locking trolley body is arranged in a drill hole in a penetrating mode to conduct drilling sampling for thickness detection, the pressure suction mechanism elastically moves in the drill bit shell, the arc pressing plate elastically extrudes a sampling piece in the drill bit shell, the upper pressure suction shell conducts negative pressure adsorption on the sampling piece, and the water wheel rotating mechanism is installed on the inner bottom wall of the self-locking trolley body through a bearing. The water wheel blade set is sprayed by water pressure of the high-pressure spray head to conduct circumferential rotating motion, stirring dust suppression is conducted on drilling of the drill bit shell in the rotating process, and the drilling, slag removal and dust suppression integrated device has the advantages that drilling, slag removal and dust suppression are integrated, dual anti-falling sampling is achieved, and the achieved high-precision and stability-enhanced effects are achieved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of highway thickness detection, in particular to a thickness detection equipment for highway construction. BACKGROUND

[0002] In highway engineering, the thickness of each level of highway engineering construction is closely related to the overall strength of the highway. Only in the case of ensuring the thickness, the strength of each level and the overall strength of the highway can be guaranteed. In addition to ensuring the strength, strictly controlling the thickness of each structure layer of the highway can also play a certain control role in the elevation of the road surface, which is a very important index.

[0003] The existing highway construction thickness detection equipment has the following technical defects in the drilling sampling process: first, the existing equipment needs to be drilled and sediment cleaned separately. The accumulation of gravel and dust at the bottom of the hole increases the drilling resistance, and frequent manual sediment cleaning is required, resulting in prolonged single detection time and low efficiency. Second, if a single mechanical clamping or negative pressure adsorption method is used to fix the core sample, the core sample will be broken or fall off at a high rate when sampling brittle materials such as asphalt mixture and cement stabilized gravel, and repeated sampling is required to increase the detection cost. In addition, if there is no effective dustproof measure during drilling, the dust concentration will endanger the health of the operator, and the dust will also block the line of sight, which is easy to cause drilling positioning deviation. Finally, the drilling feed and rotary drive of the existing equipment have poor coordination, which easily causes the core sample end surface to be insufficiently flat during axial displacement, thereby affecting the thickness measurement accuracy. SUMMARY

[0004] The present application provides a thickness detection equipment for highway construction, which solves the technical problems raised in the background.

[0005] To achieve the above-mentioned purpose, the present application provides the following technical scheme: a thickness detection equipment for highway construction, comprising a self-locking cart main body, a load-bearing plate is fixedly connected between the inner walls of one side of the self-locking cart main body, a dust suction machine is fixedly installed on the upper surface of the load-bearing plate, a drill hole is formed in the center inner bottom wall of the self-locking cart main body, and the thickness detection equipment for highway construction further comprises a drill bit shell, a high-pressure spray head, an upper pressure suction shell, an arc pressure plate and a water wheel blade group. A driving mechanism is fixedly installed on the center inner top wall of the self-locking cart main body, and the lower end of the driving mechanism is in fixed connection with the upper surface of the drill bit shell, so that the drill bit shell is driven to displace along the axial direction and rotate in a circle to drill and sample for thickness detection. The suction and pressure mechanism is in a thread detachable connection relationship with the dust collector at one end and is elastically movable in the interior of the drill head shell, so that when the drill head shell takes samples, the arc pressure plate elastically extrudes the sample in the interior of the drill head shell, and after the drill head shell takes samples, the upper pressure suction shell negatively adsorbs the sample to prevent the sample from falling off from the interior of the drill head shell; The water wheel rotating mechanism is installed on the inner bottom wall of the self-locking cart body through a bearing, so that the water wheel blade set is subjected to water pressure injection of the high-pressure nozzle, performs circumferential rotation movement, and agitates and suppresses dust during drilling of the drill head shell.

[0006] Optionally, the driving mechanism comprises: The hydraulic cylinder is fixedly installed on the central inner top wall of the self-locking cart body, the output end of the hydraulic cylinder is fixedly connected with a receiving disc, the central lower surface of the receiving disc is fixedly installed with a motor, and the output end of the motor is fixedly connected with a connecting frame body. The lower end of the connecting frame body is fixedly connected on the circumferential upper surface of the drill head shell.

[0007] Optionally, the suction and pressure mechanism comprises: The two penetrating rods are symmetrically connected on the upper surface of the upper pressure suction shell, the upper surface of the drill head shell and the connecting frame body are both provided with penetrating holes for the penetrating rods to penetrate, the size of the top end of the penetrating rod is larger than the size of the penetrating hole, a group of first springs are welded between the inner top wall of the drill head shell and the upper surface of the upper pressure suction shell, and the first springs are wound outside the penetrating rod. The central upper surface of the upper pressure suction shell is fixedly installed with a connecting hard pipe, the interior of the upper pressure suction shell is provided with an air inlet cavity, the connecting hard pipe is in communication with the air inlet cavity, and the lower surface of the upper pressure suction shell in communication with the air inlet cavity is uniformly provided with a group of adsorption holes. The drill head shell is located below the upper pressure suction shell, and the two side inner walls are provided with pressure setting arc grooves, and the second springs are welded between the arc pressure plate and the groove wall of the pressure setting arc groove.

[0008] Optionally, the water wheel rotating mechanism comprises: The water storage tank is fixedly installed on the other side surface of the self-locking cart body away from the dust collector, a water outlet pipe is fixedly connected between the water storage tank and the high-pressure nozzle, and the nozzle of the high-pressure nozzle is obliquely opposite to the surface of each blade of the water wheel blade set. The outer dust cover is fixedly installed on the inner bottom wall of the self-locking trolley body, the rotating groove is arranged on the inner bottom wall of the self-locking trolley body around the drill hole, the bearing rotating ring is rotationally arranged in the rotating groove, and the water turbine blade group is arranged on the lower surface of the bearing rotating ring in an inclined angle distribution.

[0009] Optionally, a group of symmetrical sliding rods are fixedly connected between the inner top wall and the inner bottom wall of the self-locking trolley body, the outer surface of the sliding rod is slidably provided with a sliding sleeve plate, and the sliding sleeve plate is fixedly connected to the two side surfaces of the receiving disc.

[0010] Optionally, the dust collector is fixedly connected with an air suction pipe on one side close to the drill bit shell, the air suction end of the air suction pipe is fixedly connected with a telescopic pipe, and the telescopic pipe is in a threaded connection relationship with the connecting hard pipe. The other side of the dust collector is fixedly connected with a dust collecting pipe.

[0011] Optionally, the penetrating rod is provided with a fixed notch for penetrating the telescopic pipe.

[0012] Optionally, the lower surface of the drill bit shell is uniformly provided with a conical crushing block around the lower surface.

[0013] Compared with the prior art, the self-locking trolley body of the present application has the following advantages: First, the driving mechanism of the present application adopts a composite motion of hydraulic cylinder axial feeding and motor rotary driving, and cooperates with the guide of the sliding rod and the sliding sleeve plate to avoid axial deflection, so as to reduce the end face flatness error of the core sample and improve the thickness measurement accuracy.

[0014] Second, the arc pressure plate of the present application provides elastic clamping force through the second spring, realizes radial flexible fixation of the core sample, the negative pressure generated by the adsorption hole group of the upper pressure suction shell forms axial adsorption force, and the three-dimensional force field of "radial elastic constraint + axial vacuum adsorption" is constructed, so that the double action formed by this reduces the core sample falling rate and significantly improves the sampling integrity.

[0015] In addition, the suction and pressure mechanism is in threaded connection with the connecting hard pipe through the telescopic pipe, and the penetrating rod and the first spring are elastically movable, so that the damaged parts can be quickly disassembled and replaced, and the maintenance time is shortened.

[0016] Thirdly, the water wheel blade set is driven by the high-pressure water flow of the high-pressure nozzle, forms annular vortex, restrains the dust around the drilling hole in the outer dustproof cover of the horn type, the inclined blade of the water wheel blade set forms axial upward airflow and radial ring flow in the dustproof cover when rotating, the two form spiral flow field by coupling, can effectively capture suspended dust, solves the dust escape problem caused by the traditional straight blade "vortex dead zone", dust particles are thrown to the cover wall of the dustproof cover under the centrifugal force, collide and cohere between the dust particles, and slide along the inner wall to the bottom gap, and then avoid suspension diffusion.

[0017] In addition, the annular vortex formed in the dustproof cover is also beneficial to form a cooling area outside the drill bit shell, and the downward flowing water flow also provides liquid lubrication for the drilling operation of the drill bit shell. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is the front view of the overall structure of the application; Figure 2 It is the front view of the overall structure of the application Figure 1 ; Figure 3 It is the enlarged schematic view of the structure at A in the application Figure 2 ; Figure 4 It is the enlarged schematic view of the structure at A1 in the application Figure 2 ; Figure 5 It is the enlarged schematic view of the structure at A2 in the application Figure 2 ; Figure 6 It is the front view of the overall structure of the application Figure 2 ; Figure 7 It is the enlarged schematic view of the structure at A3 in the application Figure 6 ; Figure 8 It is the partial structure sectional view of the suction and pressure mechanism of the application; Figure 9 It is the partial structure enlarged schematic view of the water wheel rotating mechanism of the application; Figure 10 It is the partial structure enlarged schematic view of the suction and pressure mechanism of the application.

[0019] In the figure: 1 - self-locking cart body, 2 - drill hole, 3 - slide bar, 4 - bearing plate, 5 - dust collector, 6 - air suction pipe, 7 - telescopic pipe, 8 - dust collection pipe, 9 - water storage tank, 10 - water outlet pipe, 11 - high-pressure spray head, 12 - dust cover, 13 - hydraulic cylinder, 14 - receiving disc, 15 - sliding sleeve plate, 16 - motor, 17 - connecting frame body, 18 - drill head shell, 19 - conical crushing block, 20 - connecting hard pipe, 21 - upper pressure suction shell, 22 - air inlet cavity, 23 - adsorption hole group, 24 - fixed slot, 25 - threaded rod, 26 - first spring, 27 - pressure setting arc groove, 28 - arc pressure plate, 29 - second spring, 30 - rotating groove, 31 - bearing rotating ring, 32 - water wheel blade group. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0021] Embodiment one, please refer to Figures 1 to 10 The present application provides a technical solution: a thickness detection equipment for highway construction, comprising a self-locking cart body 1, a bearing plate 4 is fixedly connected between the inner walls on one side of the self-locking cart body 1, a dust collector 5 is fixedly installed on the upper surface of the bearing plate 4, a drill hole 2 is formed in the central inner bottom wall of the self-locking cart body 1, and the thickness detection equipment for highway construction further comprises a drill head shell 18, a high-pressure spray head 11, an upper pressure suction shell 21, an arc pressure plate 28 and a water wheel blade group 32, and the lower surface of the drill head shell 18 is uniformly installed with conical crushing blocks 19; A driving mechanism is fixedly installed on the central inner top wall of the self-locking cart body 1, and the lower end of the driving mechanism is in fixed connection with the upper surface of the drill head shell 18, so that the drill head shell 18 is displaced along the axial direction and rotates circumferentially to drill and sample for thickness detection in the drill hole 2; A suction and pressure mechanism, one end of the suction and pressure mechanism is in screwably detachable connection with the dust collector 5, and the suction and pressure mechanism is elastically movable in the interior of the drill head shell 18, so that when the drill head shell 18 samples, the arc pressure plate 28 elastically extrudes the sampling member in the interior of the drill head shell 18, and after the drill head shell 18 samples, the upper pressure suction shell 21 negatively adsorbs the sampling member to prevent the sampling member from falling off from the interior of the drill head shell 18; A water wheel rotating mechanism, the water wheel rotating mechanism is installed on the inner bottom wall of the self-locking cart body 1 through a bearing, so that the water wheel blade group 32 is subjected to water pressure injection of the high-pressure spray head 11 to rotate circumferentially and agitate and suppress dust during drilling of the drill head shell 18.

[0022] More specifically, in this embodiment, the device is pushed to the highway detection point by the self-locking trolley body 1, the position is fixed by the self-locking function of the trolley, it is ensured that the drill hole 2 is aligned with the detection target area, then the driving mechanism is started, the driving mechanism drives the drill head shell 18 to displace along the axial direction and rotate circumferentially, contacts the road surface through the drill hole 2, the conical crushing blocks 19 (uniformly distributed circumferentially) on the lower surface of the drill head shell 18 cut and crush the pavement structure layer such as asphalt mixture and cement stabilized layer, realize the drilling sampling for thickness detection, in addition, the cutting and crushing design of the conical crushing blocks 19 can quickly penetrate the pavement structure layer, so as to improve the drilling efficiency and be suitable for multiple types of pavement detection such as asphalt, cement and base; During the sampling process, the suction and pressure mechanism elastically moves in the drill head shell 18, the arc pressure plate 28 elastically extrudes the sampling piece, after the sampling is completed, the upper pressure suction shell 21 is connected with the suction machine 5 through the threads, realizes the negative pressure adsorption on the upper surface of the sampling piece, so as to stably fix the upper end and both sides of the sampling piece in different directions, and prevent it from falling off from the inside of the drill head shell 18; During the sampling, the water wheel rotating mechanism is installed on the inner bottom wall of the self-locking trolley body 1 through the bearing, the high-pressure nozzle 11 sprays water pressure to drive the water wheel blade group 32 to rotate circumferentially, and stirs and suppresses the dust in the drilling area of the drill head shell 18.

[0023] The coordinated action of the suction and pressure mechanism and the water wheel rotating mechanism realizes the integrated operation of "drilling-fixing-dust suppression", so that the time consumption of single detection is shortened.

[0024] In addition, the driving mechanism comprises: The hydraulic cylinder 13 is fixedly installed on the center inner top wall of the self-locking trolley body 1, the output end of the hydraulic cylinder 13 is fixedly connected with the receiving disc 14, the center lower surface of the receiving disc 14 is fixedly installed with the motor 16, and the output end of the motor 16 is fixedly connected with the connecting frame body 17. The lower end of the connecting frame body 17 is fixedly connected on the circumferential upper surface of the drill head shell 18.

[0025] It is worth noting that the hydraulic cylinder 13 is fixedly installed on the center inner top wall of the self-locking trolley body 1, the output end pushes the receiving disc 14 to displace along the axial direction (vertical direction), drives the lower connecting frame body 17 and the drill head shell 18 to synchronously move downward, and realizes the drilling depth control; At the same time, the motor 16 on the center lower surface of the receiving disc 14 is started, the output end of the motor 16 drives the connecting frame body 17 to rotate circumferentially, the lower end of the connecting frame body 17 is fixedly connected with the circumferential upper surface of the drill head shell 18, drives the drill head shell 18 to rotate, and completes the cutting sampling in cooperation with the axial feeding.

[0026] The stepless speed regulation feeding of the hydraulic cylinder 13 and the constant torque output of the motor 16 form a compound power to ensure smooth drilling in hard base layers (such as cement stabilized gravel) and help improve the core sample integrity rate, and the rigid connection structure (welded with 45 steel) of the connecting frame body 17 avoids radial swing of the drill bit shell 18 during high-speed rotation, thereby reducing the deviation of the core sample diameter.

[0027] In addition, the suction and pressure mechanism comprises: The penetrating rods 25 are symmetrically connected to the upper surface of the upper pressure suction shell 21, the upper surface of the drill bit shell 18 and the connecting frame body 17 are both provided with perforations for the penetrating rods 25 to penetrate, the size of the top end of the penetrating rods 25 is larger than the size of the perforations, a group of first springs 26 are welded between the inner top wall of the drill bit shell 18 and the upper surface of the upper pressure suction shell 21, and the first springs 26 are wound outside the penetrating rods 25; The central upper surface of the upper pressure suction shell 21 is fixedly installed with the connecting hard pipe 20, one side of the dust collector 5 close to the drill bit shell 18 is fixedly connected with the air suction pipe 6, the air suction end of the air suction pipe 6 is fixedly connected with the telescopic pipe 7, the telescopic pipe 7 is in a threaded connection relationship with the connecting hard pipe 20, and the penetrating rods 25 are provided with fixed notches 24 for the telescopic pipe 7 to penetrate; The other side of the dust collector 5 is fixedly connected with the dust collecting pipe 8, the inside of the upper pressure suction shell 21 is provided with the air inlet cavity 22, the connecting hard pipe 20 is in communication with the air inlet cavity 22, and the lower surface of the upper pressure suction shell 21 communicated to the air inlet cavity 22 is uniformly provided with the adsorption hole group 23; The two side inner walls of the drill bit shell 18 below the upper pressure suction shell 21 are provided with pressure setting arc grooves 27, and the second springs 29 are welded between the arc pressure plates 28 and the groove walls of the pressure setting arc grooves 27.

[0028] It is worth noting that when the drill bit shell 18 is sampling, the penetrating rods 25 slide along the perforations of the drill bit shell 18 and the connecting frame body 17, the upper pressure suction shell 21 moves downward with the drilling depth, and the first springs 26 (wound outside the penetrating rods 25) are compressed to store energy. At this time, the arc pressure plates 28 on the two side inner walls of the drill bit shell 18 exert radial elastic clamping force on the two sides of the sampling member through the second springs 29; After sampling is completed, the dust collector 5 provides negative pressure to the air inlet cavity 22 of the upper pressure suction shell 21 through the air suction pipe 6 and the telescopic pipe 7 (threadedly connected with the connecting hard pipe 20), the adsorption hole group 23 (uniformly distributed on the lower surface of the air inlet cavity 22) exerts axial adsorption force on the sampling member, forming double fixation of "radial clamping + axial adsorption", and the fine dust generated during drilling enters the air inlet cavity 22 through the adsorption hole group 23, enters the dust collector 5 through the connecting hard pipe 20, the telescopic pipe 7 and the air suction pipe 6, and is finally discharged and collected by the dust collecting pipe 8.

[0029] The elastic buffering design of the second spring 29 avoids the breakage of the core sample of brittle material (such as asphalt mixture) caused by rigid clamping, and the complete rate of the sampling piece is increased to more than 95%. The structure design that the top end of the penetrating rod 25 is larger than the hole enables the maximum downward movement distance of the upper pressing suction shell 21 to be limited, thereby preventing excessive extrusion and damage to the core sample. In addition, the fixed slot 24 is provided for the penetrating of the telescopic pipe 7, so as to ensure the stability of the negative pressure transmission path.

[0030] In addition, the water wheel rotating mechanism comprises: The water storage tank 9 is fixedly installed on the other side surface of the self-locking cart body 1 away from the dust collector 5, the water outlet pipe 10 is fixedly connected between the water storage tank 9 and the high-pressure spray head 11, and the spray head of the high-pressure spray head 11 is obliquely opposite to the surface of each blade of the water wheel blade group 32. The outer-bar dust cover 12 is fixedly installed on the inner bottom wall of the self-locking cart body 1, the rotating groove 30 is arranged on the inner bottom wall of the self-locking cart body 1 around the drill hole 2, the bearing rotating ring 31 is rotationally arranged in the rotating groove 30, and the water wheel blade group 32 is obliquely and angularly distributed and installed on the lower surface of the bearing rotating ring 31.

[0031] It is worth noting that the high-pressure water flow in the water storage tank 9 is delivered to the high-pressure spray head 11 through the water outlet pipe 10, the spray head is obliquely opposite to the surface of each blade of the water wheel blade group 32, the water flow impact force drives the circumferential rotation of the water wheel blade group 32, the outer-bar dust cover 12 covers the drilling area, the water wheel blade group 32 (obliquely and angularly distributed) rotates to form a ring vortex, and the dust around the drill hole 2 is constrained in the dust cover 12. The dust particles are thrown to the cover wall under the action of centrifugal force and slide along the inner wall to the bottom gap. At the same time, the water wheel blade group 32 drives the bearing rotating ring 31 to rotationally move in the rotating groove 30, thereby supporting the rotational movement of the water wheel blade group 32 and reducing the coaxiality error of the water wheel blade group 32 and the drill bit shell 18.

[0032] The oblique angle distribution design (for example, an installation angle of 15°) of the water wheel blade group 32 can form a spiral flow field of axial upward airflow and radial ring flow to improve the dust capturing efficiency and reduce the dust concentration in the working environment, thereby meeting the occupational health standards. The gap cooperation between the bearing rotating ring 31 and the rotating groove 30 realizes the low-resistance rotation of the water wheel blade group 32, and the energy consumption is greatly reduced compared with the conventional electric dust suppression device (without additional power source). In addition, the ring vortex formed in the dust cover 12 is also conducive to forming a cooling area outside the drill bit shell 18, and the downward flowing water flow also provides liquid lubrication for the drilling operation of the drill bit shell 18.

[0033] In the above embodiment, on the basis of the above embodiment: Further, a group of symmetrical slide rods 3 are fixedly connected between the inner top wall and the inner bottom wall of the self-locking trolley body 1, and the outer surface of the slide rods 3 is slidably provided with slide sleeve plates 15 which are fixedly connected to the two side surfaces of the receiving disc 14.

[0034] More specifically, in the present embodiment, when the driving mechanism is in operation, the receiving disc 14 is axially displaced, and the slide sleeve plates 15 fixedly connected to the two side surfaces of the receiving disc 14 are slid along the slide rods 3 (symmetrically fixed between the inner top wall and the inner bottom wall of the self-locking trolley body 1) to guide and limit the movement track of the receiving disc 14.

[0035] Among them, the rigid guidance of the slide rods 3 and the slide sleeve plates 15 (the surface of the slide rod is chrome-plated, and the friction coefficient is 0.02) limits the radial deflection of the receiving disc 14, so as to improve the axial displacement accuracy of the driving mechanism, and further ensure the coaxiality of the drill bit shell 18 and the drill hole 2. The symmetrical distribution of the slide rods 3 disperses the radial load of the receiving disc 14, reduces the bending moment of the output end of the hydraulic cylinder 13, and prolongs the service life of the equipment.

[0036] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A thickness detection device for road construction, comprising a self-locking cart main body (1), characterized in that: The self-locking cart body (1) is fixedly connected between the inner walls of one side, and the upper surface of the load-bearing plate (4) is fixedly installed with a dust collector (5); the center inner bottom wall of the self-locking cart body (1) is provided with a drill hole (2), and the road construction thickness detection equipment further comprises a drill head shell (18), a high-pressure nozzle (11), an upper pressure suction shell (21), an arc pressure plate (28) and a water wheel blade group (32); The center inner top wall of the self-locking cart body (1) is fixedly installed with a driving mechanism, and the lower end of the driving mechanism is in fixed connection with the upper surface of the drill head shell (18); the drill head shell (18) is driven to displace along the axial direction and rotate in the circumferential direction to drill and sample for thickness detection in the drill hole (2); The suction and pressure mechanism is detachably connected to the dust collector (5) at one end, and is elastically movable in the drill head shell (18) to elastically extrude the sampling member in the drill head shell (18) when the drill head shell (18) is sampling, and the upper pressure suction shell (21) is used to negatively adsorb the sampling member after the drill head shell (18) is sampling to prevent the sampling member from falling off from the drill head shell (18); The water wheel rotating mechanism is installed on the inner bottom wall of the self-locking cart body (1) through a bearing to enable the water wheel blade group (32) to rotate in a circumferential manner under the water pressure injection of the high-pressure nozzle (11) and to stir and suppress dust during rotation.

2. The thickness detection device for road construction according to claim 1, characterized by: The driving mechanism comprises: A hydraulic cylinder (13) is fixedly installed on the center inner top wall of the self-locking cart body (1), and the output end of the hydraulic cylinder (13) is fixedly connected with an accommodating disc (14); the center lower surface of the accommodating disc (14) is fixedly installed with a motor (16), and the output end of the motor (16) is fixedly connected with a connecting frame body (17); The lower end of the connecting frame body (17) is fixedly connected to the circumferential upper surface of the drill head shell (18).

3. The thickness detection device for road construction according to claim 2, characterized by: The suction and pressure mechanism comprises: Two groups of penetrating rods (25) are symmetrically connected to the upper surface of the upper pressure suction shell (21); the upper surface of the drill head shell (18) and the connecting frame body (17) are both provided with perforations for the penetrating rods (25) to penetrate; the size of the top end of the penetrating rod (25) is larger than the size of the perforation; a group of first springs (26) are welded between the inner top wall of the drill head shell (18) and the upper surface of the upper pressure suction shell (21), and the first springs (26) are wound outside the penetrating rod (25); A connecting hard pipe (20) is fixedly installed on the center upper surface of the upper pressure suction shell (21); an air inlet cavity (22) is formed in the interior of the upper pressure suction shell (21); the connecting hard pipe (20) is in communication with the air inlet cavity (22); and a group of adsorption holes (23) are uniformly formed on the lower surface of the air inlet cavity (22) in communication with the upper pressure suction shell (21). The drill head shell (18) is located below the upper suction shell (21), and arc grooves (27) are arranged in the inner walls on both sides.

4. The thickness detection apparatus for road construction according to claim 1, characterized by: The water wheel rotating mechanism comprises: The water storage tank (9) is fixedly installed on the other side surface of the self-locking cart body (1) away from the dust collector (5), the water storage tank (9) and the high-pressure spray head (11) are fixedly connected with the water outlet pipe (10), and the spray head of the high-pressure spray head (11) is obliquely opposite to the surface of each blade of the water wheel blade group (32); The outer dust cover (12) is fixedly installed on the inner bottom wall of the self-locking cart body (1), the rotating groove (30) is arranged on the inner bottom wall of the self-locking cart body (1) around the drill hole (2), the bearing rotating ring (31) is arranged in the rotating groove (30), and the water wheel blade group (32) is arranged on the lower surface of the bearing rotating ring (31) in an inclined angle.

5. The thickness detection device for road construction according to claim 2, characterized by: A group of symmetrical slide rods (3) are fixedly connected between the inner top wall and the inner bottom wall of the self-locking cart body (1), the outer surface of the slide rod (3) is slidably provided with a slide sleeve plate (15), and the slide sleeve plate (15) is fixedly connected to the two side surfaces of the receiving disc (14).

6. The thickness detection device for road construction according to claim 3, characterized by: The dust collector (5) is fixedly connected with the air suction pipe (6) near one side of the drill head shell (18), the air suction end of the air suction pipe (6) is fixedly connected with the telescopic pipe (7), and the telescopic pipe (7) is in threaded connection with the connecting hard pipe (20). The other side of the dust collector (5) is fixedly connected with the dust collecting pipe (8).

7. The thickness detection device for road construction according to claim 6, characterized by: The penetrating rod (25) is provided with a fixed notch (24) for penetrating the telescopic pipe (7).

8. The thickness detection apparatus for road construction according to claim 1, characterized by: The lower surface of the drill head shell (18) is uniformly provided with conical crushing blocks (19).

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