1. The utility model provides a road bed compactness detection device, includes mount pad (1), its characterized in that: the utility model discloses a water spray test device, including mount pad (1), the bottom fixedly connected with mounting bracket (2) of both sides surface of mount pad (1), correspond fixedly connected with base (3) between the bottom surface of mounting bracket (2), the inside swing joint of mount pad (1) has actuating lever (4), the bottom surface of actuating lever (4) just is located bottom fixedly connected with mounting box (5) of mounting bracket (2), the right side fixedly connected with detection pen (6) of mounting box (5), the outside of detection pen (6) just is located the inboard swing joint of the mounting bracket (2) that corresponds and has detection frame (7), the bottom of mounting box (5) just is located the top of base (3) and is provided with locating plate (8), the bottom swing joint of locating plate (8) has briquetting (9), the right side fixed surface of base (3) is connected with water spray box (10).

2. The roadbed compactness detecting device of claim 1, wherein: the top surface of the driving rod (4) is connected with a motor (11) in a transmission mode, the top surface of the driving rod is located on the corresponding mounting rack (2), and the motor (11) is fixedly connected with the corresponding mounting rack (2).

3. The roadbed compactness detecting device of claim 1, wherein: the utility model discloses a detection rack, including mounting box (5), the inside swing joint of mounting box (5) has slider (12), be provided with between the bottom of slider (12) and locating plate (8) push rod (13), the both ends of push rod (13) just are located the bottom surface of slider (12) and the equal swing joint of top surface of locating plate (8) positioning seat (14), positioning seat (14) are fixed connection with slider (12) and locating plate (8), the bottom surface of mounting box (5) is provided with the opening corresponding with positioning seat (14), the inside of mounting box (5) is provided with the spout corresponding with slider (12), the inboard of detection rack (7) is tangent with detection pen (6), the inside of detecting rack (7) is provided with the controller that runs through the mounting bracket (2) outside.

4. The roadbed compactness detecting device of claim 1, wherein: the outer side surface of the positioning plate (8) is movably connected with a guide plate (15) between the corresponding mounting frames (2), the two sides of the guide plate (15) are movably connected with guide frames (16) inside the mounting frames (2), the guide frames (16) are fixedly connected with the mounting frames (2), the positioning plate (8) is in threaded connection with a pressing block (9), the top of the base (3) is of an open structure, a sliding rod (17) penetrating through the outer side of the mounting frame (2) is fixedly connected to the right side of the guide plate (15), a sliding chute corresponding to the sliding block (12) is arranged on the inner side of the mounting frame (2), a sleeve (18) is fixedly connected to the outer side surface of the sliding rod (17), a threaded rod (19) penetrating through the top of the base (3) is movably connected to the inner side of the sleeve (18), and threads corresponding to the threaded rod (19) are arranged on the inner side of the sleeve (18), the threaded rod (19) is movably connected with the mounting rack (2) and the base (3).

5. The roadbed compactness detection device of claim 4, wherein: the outer side surface of the threaded rod (19) is located on the inner side of the bottom of the base (3) and is fixedly connected with a cam (20), the left side of the water spraying box (10) is fixedly connected with an inserted rod (21) which is located on the outer side of the cam (20), the outer side of the inserted rod (21) is movably connected with a positioning cylinder (22), the positioning cylinder (22) is fixedly connected with the water spraying box (10), a spring (23) is arranged on the inner side of the positioning cylinder (22) and on the outer side of the inserted rod (21), a convex block is arranged on the outer side of the inserted rod (21) and on the left side of the spring (23), the inserted rod (21) is of a T-shaped structure, a baffle (24) is movably connected on the right side of the inserted rod (21) and on the inner side of the water spraying box (10), supporting rods (25) are fixedly connected on the two sides of the baffle (24), a clockwork spring (26) is fixedly connected on the outer side of the supporting rods (25) and on the inner side of the water spraying box (10), clockwork spring (26) are fixed connection with water spray box (10), the right side swing joint of baffle (24) has oral siphon (27) of running through water spray box (10) outside, the left side of oral siphon (27) is atomizer, the left bottom of water spray box (10) is open structure.

6. The roadbed compactness detecting device of claim 1, wherein: the utility model discloses a fan, including base (3), the outside of actuating lever (4) just is located top fixedly connected with carousel (28) of mount pad (1), the top of mount pad (1) just is located the both sides of carousel (28) and all is provided with drive wheel (29), swing joint has belt (30) between drive wheel (29) and carousel (28), the inside fixedly connected with of drive wheel (29) runs through bull stick (31) at mount pad (1) top, the bottom surface of bull stick (31) just is located inboard fixedly connected with fan (32) of base (3) bottom, fan (32) are swing joint with base (3), the outside of base (3) is provided with the opening corresponding with fan (32), just be located the spacing section of thick bamboo (33) of outside fixedly connected with of bull stick (31) between base (3) and mount pad (1).

7. A method for using the integral switch for facilitating communication quick connection according to claims 1-6, characterized in that: the using method comprises the following steps:

s1, detecting the compaction degree of a roadbed, placing a base (3) on the surface of the roadbed to be detected by a user, connecting a water inlet pipe (27) with a water tank, the motor (11) is started through a controller in the detection frame (7), the motor (11) drives the mounting box (5) to rotate through the driving rod (4), the push rod (13) is driven to rotate by the positioning seat (14) at the bottom of the sliding block (12) in the mounting box (5), the push rod (13) takes a positioning seat (14) at the top of the positioning plate (8) as a fulcrum to drive the positioning plate (8) to rotate downwards, the positioning plate (8) stably rotates downwards vertically under the clamping of the guide plate (15) and the guide frame (16), the pressing block (9) is further driven to press the roadbed, and the compaction degree of the roadbed is obtained through the moving amplitude of the detection pen (6) on the detection frame (7) according to the rotating amplitude of the mounting box (5);

s2, removing dust on the surface of the roadbed: when a user starts the motor (11), the motor (10) drives the rotary table (28) to rotate through the driving rod (4), the rotary table (28) drives the driving wheel (29) to rotate through the belt (30), the driving wheel (29) drives the rotary rod (31) to rotate, the rotary rod (31) drives the fan (32) to rotate, dust on the surface of the roadbed is blown away and is discharged from an opening on the outer side of the base (3), and the detection accuracy of the roadbed compactness is improved;

s3, dust falling on the surface of the roadbed: briquetting (9) when rising, drive deflector (15) rebound, deflector (15) drive sleeve (18) rebound through slide bar (17), sleeve (18) drive threaded rod (19) and rotate, threaded rod (19) drive cam (20) and rotate, cam (20) are tangent with inserted bar (21), promote inserted bar (21) and remove to the inboard of spraying water box (10), and then drive baffle (24) and remove, baffle (24) use bracing piece (25) as the fulcrum, rotate, open inlet tube (27) from this, spray water to the roadbed, make the quick sediment of the floating dust on roadbed surface, supplementary roadbed is restoreed, and avoid dust to fly upward.

Background

Subgrade compaction originally refers to the ratio of the compacted dry density of soil or other road-making material to the standard maximum dry density, expressed as a percentage. The roadbed compactness is one of key indexes for roadbed and pavement construction quality detection, the density condition after on-site compaction is represented, the higher the compactness is, the higher the density is, the better the overall performance of the material is, and for a roadbed, a pavement semi-rigid base layer and a granular flexible base layer, the compactness is the ratio of the dry density actually achieved on a construction site to the maximum dry density obtained by an internal standard compaction experiment; for asphalt cap courses, asphalt stabilized base courses, compaction refers to the ratio of the density achieved on site to the density of the internal standard. Therefore, the determination of the compactness of the roadbed mainly comprises the determination of the internal standard density and the field density test.

The roadbed compactness detection method comprises a pit digging and sand filling method, a core drilling method, a cutting ring method and the like, wherein in the pit digging process, certain damage needs to be carried out on the ground, the ground breaking area is large, the later repair is troublesome, the equipment volume is large, the types of equipment to be worn are various, and the equipment is troublesome to carry;

current road bed compactness detection device is only in order to satisfy the earth of being convenient for and gets the material, does not solve the big problem of area of breaking ground to get and need cooperate other detection device to detect once more after the material, carry inconveniently, and equipment linkage nature is relatively poor, and the installation is troublesome, when getting the material, dust is more, has reduced the precision that detects, influences the staff and carries out the operation.

Disclosure of Invention

Technical problem to be solved

Aiming at the defects of the prior art, the invention provides a roadbed compactness detection method and a roadbed compactness detection device, which are convenient to carry and install, are used for disassembly and replacement, can detect the compactness of a roadbed without breaking the ground, remove dust and fall while detecting, have the function of assisting in repairing the roadbed, and have the advantage of strong linkage, and solve the problems that the existing device is inconvenient to carry, has more auxiliary equipment, has more dust in the detection process, cannot directly and visually detect data, lacks a roadbed repairing function, has no linkage between structures, and has low automation degree.

(II) technical scheme

In order to realize the purposes that the device is convenient to carry and install, is used for disassembly and replacement, can detect the compaction degree of the roadbed without breaking the ground, performs dust removal and dust fall during detection, has the function of assisting in repairing the roadbed and has strong linkage, the invention provides the following technical scheme: the utility model provides a road bed compactness detection device, includes the mount pad, the equal fixedly connected with mounting bracket in both sides surface of mount pad corresponds fixedly connected with base between the bottom surface of mounting bracket, the inside swing joint of mount pad has the actuating lever, as the device's main drive, the bottom surface of actuating lever just is located the bottom fixedly connected with mounting box of mounting bracket, the right side fixedly connected with detection pen of mounting box for detect the record, the outside of detection pen just is located the inboard swing joint of the mounting bracket that corresponds has the detection frame, the bottom of mounting box just is located the top of base and is provided with the locating plate, the bottom swing joint of locating plate has the briquetting, the right side fixed surface of base is connected with the water spray box, detects the completion back at the compactness for spray the dust fall to the road bed surface.

Preferably, the top surface of the driving rod and the top transmission of the corresponding mounting rack are connected with an electric motor, the driving rod is driven by the electric motor to rotate, compaction degree detection is carried out, and the electric motor is fixedly connected with the corresponding mounting rack and used for fixing the electric motor.

Preferably, the inside swing joint of mounting box has the slider, be provided with the push rod between the bottom of slider and the locating plate, the both ends of push rod and the equal swing joint in the bottom surface that is located the slider and the top surface of locating plate have the positioning seat, the positioning seat is fixed connection with slider and locating plate, the bottom surface of mounting box is provided with the opening corresponding with the positioning seat, the inside of mounting box is provided with the spout corresponding with the slider, and it is spacing to be convenient for the slider to remove and remove, the inboard of examining the test stand is tangent with the test pen, makes the test pen remove along the inboard of examining the test stand, reachs the concrete data of compactness according to the turned distance who examines the test pen, the inside of examining the test stand is provided with the controller that runs through the mounting stand outside, through controller starter motor and reachs the concrete data.

Preferably, the outer surface of the positioning plate and the corresponding mounting frame are movably connected with a guide plate to guide downward movement of the press block, so as to prevent the press block from being inclined when moving, the guide plate is movably connected with guide frames at the two sides of the guide plate and the inside of the mounting frame to guide the movement of the guide plate, the guide frames are fixedly connected with the mounting frame, the positioning plate is in threaded connection with the press block and is used for disassembling and assembling the press block, the top of the base is of an open structure and is used for downward movement of the press block to be in contact with the surface of the roadbed, the right side of the guide plate is fixedly connected with a slide rod penetrating through the outer side of the mounting frame, the inner side of the mounting frame is provided with a slide groove corresponding to the slide block, the outer surface of the slide rod is fixedly connected with a sleeve, the inner side of the sleeve is movably connected with a threaded rod penetrating through the top of the base, and the inner side of the sleeve is provided with threads corresponding to the threaded rod, make the sleeve when removing, drive the threaded rod and rotate, the threaded rod is swing joint with mounting bracket and base.

Preferably, the surface of the outer side of the threaded rod is positioned on the inner side of the bottom of the base, the left side of the water spraying box is positioned on the outer side of the cam and is movably connected with an inserted rod, when the cam is tangent to the inserted rod, the inserted rod is pressed into the water spraying box, the outer side of the inserted rod is movably connected with a positioning cylinder, the positioning cylinder is fixedly connected with the water spraying box, a spring is arranged on the inner side of the positioning cylinder and on the outer side of the inserted rod, a convex block is arranged on the outer side of the inserted rod and on the left side of the spring, the inserted rod is restored by the resilience of the spring, the inserted rod is of a T-shaped structure, the situation that the inserted rod is excessively inserted into the water spraying box is avoided, a baffle is movably connected on the right side of the inserted rod and on the inner side of the water spraying box, supporting rods are fixedly connected on the two sides of the baffle and are used as fulcrums for swinging the baffle, and a clockwork spring is fixedly connected on the outer side of the water spraying box, utilize the function of recovering of clockwork spring, recover the baffle, use with the inserted bar combination from this to the effect of piston has been reached, the clockwork spring is fixed connection with the water spray box, the right side swing joint of baffle has the oral siphon that runs through the water spray box outside, the left side of oral siphon is the atomizer, improves the impact force of water spray, the left bottom of water spray box is open structure for the drainage to the road bed carries out the dust fall and handles.

Preferably, the outer side surface of the driving rod is fixedly connected with a turntable which is positioned at the top of the mounting seat, the top of the mounting seat is provided with driving wheels which are positioned at two sides of the turntable, a belt is movably connected between the driving wheels and the turntable, when the driving rod rotates, the driving wheels are driven to rotate by the combination of the turntable and the belt, the inner part of the driving wheels is fixedly connected with a rotating rod which penetrates through the top of the mounting seat, the bottom surface of the rotating rod is fixedly connected with a fan which is positioned at the inner side of the bottom of the base, the fan is movably connected with the base, the fan rotates by the combination of the driving wheels and the rotating rod, therefore, when the compaction degree is detected, wind power dust removal is preferentially carried out on the roadbed surface, the outer side of the base is provided with an opening corresponding to the fan, and a limiting cylinder is fixedly connected between the base and the mounting seat and positioned at the outer side of the rotating rod, for protecting the turning bar.

(III) advantageous effects

Compared with the prior art, the invention provides a roadbed compactness detection method and a roadbed compactness detection device, which have the following beneficial effects:

1. in the roadbed compactness detecting method and the roadbed compactness detecting device, the motor drives the mounting box to rotate through the driving rod, the push rod is driven to rotate through the positioning seat at the bottom of the slide block in the mounting box, and the push rod takes the positioning seat at the top of the positioning plate as a fulcrum to drive the positioning plate to rotate downwards, the positioning plate stably and vertically rotates downwards under the clamping of the guide plate and the guide frame, further drives the pressing block to press the roadbed, and drives the detection pen to move along the detection frame when the mounting box rotates, so that a user can calculate by detecting the moving amplitude, thereby obtaining the compaction degree of the roadbed, achieving the effect of rapidly detecting the compaction degree of the roadbed without breaking the ground, after the detection is finished, the slider is utilized to reciprocate in the mounting box, the slider drives the pressing block to rise back through the push rod and the positioning seat, and the effect of being convenient for to withdraw is achieved.

2. This road bed compactness detection method and detection device, the motor passes through the actuating lever and drives the carousel and rotate, the carousel passes through the belt and drives the drive wheel and rotate, the drive wheel drives the bull stick and rotates, the bull stick drives the fan and rotates, blow off the dust on road bed surface to by the opening discharge in the base outside, thereby reached the speed that convenient to use person detected, need not to clear up the road bed in advance, improve the precision that road bed compactness detected simultaneously, avoid great dust to influence to detect.

3. This roadbed compactness detection method and detection device, when the briquetting rises, drive the deflector rebound, the deflector passes through the slide bar and drives sleeve rebound, the sleeve passes through inside and the corresponding screw thread of threaded rod, it rotates to drive the threaded rod, the threaded rod drives the cam and rotates, when the cam is tangent with the inserted bar, promote the inserted bar and remove to the inboard of spraying water box, and then drive the baffle and remove, the baffle uses the bracing piece as the fulcrum, rotate, open the oral siphon from this, spray water to the roadbed, make the superficial dirt on roadbed surface deposit fast, thereby reached supplementary roadbed prosthetic effect, and avoid dust to fly upward.

Drawings

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

FIG. 2 is a schematic top view of the present invention;

FIG. 3 is a schematic bottom view of the mounting box of the present invention;

FIG. 4 is a schematic top view of the guide plate of the present invention;

FIG. 5 is a schematic cross-sectional view of a rotating rod according to the present invention;

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

FIG. 7 is a schematic sectional view of the water spray box of the present invention.

In the figure: 1. a mounting seat; 2. a mounting frame; 3. a base; 4. a drive rod; 5. mounting a box; 6. a detection pen; 7. a detection frame; 8. positioning a plate; 9. briquetting; 10. a water spraying box; 11. an electric motor; 12. a slider; 13. a push rod; 14. positioning seats; 15. a guide plate; 16. a guide frame; 17. a slide bar; 18. a sleeve; 19. a threaded rod; 20. a cam; 21. inserting a rod; 22. a positioning cylinder; 23. a spring; 24. a baffle plate; 25. a support bar; 26. a clockwork spring; 27. a water inlet pipe; 28. a turntable; 29. a driving wheel; 30. a belt; 31. a rotating rod; 32. a fan; 33. a limiting cylinder.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-7, a roadbed compactedness detecting apparatus includes a mounting base 1, mounting frames 2 fixedly connected to both side surfaces of the mounting base 1, a base 3 is fixedly connected between the bottom surfaces of the corresponding mounting frames 2, a driving rod 4 is movably connected inside the mounting frame 1 and is used as the main driving of the device, a mounting box 5 is fixedly connected on the bottom surface of the driving rod 4 and positioned at the bottom of the mounting frame 2, a detection pen 6 is fixedly connected on the right side of the mounting box 5, used for detecting and recording, the outer side of the detecting pen 6 and the inner side of the corresponding mounting frame 2 are movably connected with a detecting frame 7, the dust-settling road surface spraying device is used in combination with the detection pen 6, a positioning plate 8 is arranged at the bottom of the mounting box 5 and at the top of the base 3, a pressing block 9 is movably connected to the bottom of the positioning plate 8, and a water spraying box 10 is fixedly connected to the right side surface of the base 3 and used for spraying dust-settling road surface.

The top surface of the driving rod 4 and the top of the corresponding mounting rack 2 are connected with a motor 11 in a transmission manner, the motor 11 can adopt a Y160M2-2 type asynchronous motor, the power is 15kW, the driving rod 4 is driven to rotate through the motor 11, and therefore the motor 11 for detecting the compactness is fixedly connected with the corresponding mounting rack 2 and used for fixing the motor 11.

The inside swing joint of mounting box 5 has slider 12, be provided with push rod 13 between the bottom of slider 12 and the locating plate 8, the both ends of push rod 13 and the equal swing joint in bottom surface that are located slider 12 and the top surface of locating plate 8 have positioning seat 14, positioning seat 14 is fixed connection with slider 12 and locating plate 8, the bottom surface of mounting box 5 is provided with the opening corresponding with positioning seat 14, the inside of mounting box 5 is provided with the spout corresponding with slider 12, it is spacing to be used for slider 12 to remove and remove, the inboard of detecting frame 7 is tangent with detecting pen 6, make to detect pen 6 remove along the inboard of detecting frame 7, the rotating distance according to detecting pen 6 reachs the concrete data of compactness, the inside of detecting frame 7 is provided with the controller that runs through the 2 outsides of mounting bracket, start motor 11 and reachs the concrete data of compactness through the controller.

The guide plate 15 is movably connected to the surface of the outer side of the positioning plate 8 and located between the corresponding mounting frames 2, and is used as a guide for downward movement of the press block 9, so that the press block 9 is prevented from being inclined when moving, the guide frame 16 is movably connected to the two sides of the guide plate 15 and located inside the mounting frames 2 and is used for moving and guiding the guide plate 15, the guide frame 16 is fixedly connected with the mounting frames 2, the positioning plate 8 is in threaded connection with the press block 9 and is used for disassembling and installing the press block 9, the top of the base 3 is of an open structure and is used for downward movement of the press block 9 to be in contact with the surface of a roadbed, the right side of the guide plate 15 is fixedly connected with a slide rod 17 penetrating through the outer side of the mounting frame 2, the inner side of the mounting frame 2 is provided with a sliding groove corresponding to the slide block 12, the surface of the slide rod 17 is fixedly, when the sleeve 18 moves, the threaded rod 19 is driven to rotate, and the threaded rod 19 is movably connected with the mounting frame 2 and the base 3.

The outer side surface of the threaded rod 19 and the inner side of the bottom of the base 3 are fixedly connected with a cam 20, the left side of the water spraying box 10 and the outer side of the cam 20 are movably connected with an inserted rod 21, when the cam 20 is tangent to the inserted rod 21, the inserted rod 21 is pressed into the water spraying box 10, the outer side of the inserted rod 21 is movably connected with a positioning cylinder 22, the positioning cylinder 22 is fixedly connected with the water spraying box 10, a spring 23 is arranged on the inner side of the positioning cylinder 22 and the outer side of the inserted rod 21, a convex block is arranged on the outer side of the inserted rod 21 and the left side of the spring 23, the inserted rod 21 is restored by the resilience of the spring 23, the inserted rod 21 is of a T-shaped structure, the inserted rod 21 is prevented from being excessively inserted into the water spraying box 10, a baffle 24 is movably connected on the right side of the inserted rod 21 and the inner side of the water spraying box 10, supporting rods 25 are fixedly connected with supporting rods 25 on both sides of the baffle 24, the supporting rods 25 are used for swinging of the baffle 24, a clockwork spring 26 is fixedly connected on the outer side of the supporting rods 25 and the inner side of the water spraying box 10, the baffle 24 is restored by utilizing the restoration function of the spring 26, so that the effect of the piston is achieved by combining the baffle with the insertion rod 21, the spring 26 is fixedly connected with the water spraying box 10, the right side of the baffle 24 is movably connected with an inlet pipe 27 penetrating through the outer side of the water spraying box 10, the left side of the inlet pipe 27 is an atomizing spray head, the impact force of water spraying is improved, the left bottom of the water spraying box 10 is of an open structure and used for draining water, and the roadbed is subjected to dust settling treatment.

A turntable 28 is fixedly connected to the outer side surface of the driving rod 4 and positioned at the top of the mounting seat 1, transmission wheels 29 are arranged at the top of the mounting seat 1 and positioned at two sides of the turntable 28, a belt 30 is movably connected between the transmission wheels 29 and the turntable 28, when the driving rod 4 rotates, the transmission wheels 29 are driven to rotate by the combined use of the turntable 28 and the belt 30, a rotating rod 31 penetrating through the top of the mounting seat 1 is fixedly connected to the inner side of the bottom surface of the rotating rod 31 and positioned at the bottom of the base 3, a fan 32 is movably connected with the base 3, the fan 32 rotates by the combined use of the transmission wheels 29 and the rotating rod 31, therefore, when the compaction degree is detected, wind power dust removal is preferentially carried out on the surface of the roadbed, an opening corresponding to the fan 32 is arranged at the outer side of the base 3, a limiting cylinder 33 is fixedly connected between the base 3 and the mounting seat 1 and positioned at the outer side of the rotating rod 31, for protecting the rotating rod 31.

The working principle is as follows:

s1, roadbed compactness detection is carried out, a user places a base 3 on the roadbed surface to be detected, a water inlet pipe 27 is connected with a water tank, a controller in a detection frame 7 starts a motor 11, the motor 11 drives a mounting box 5 to rotate through a driving rod 4, a positioning seat 14 at the bottom of a sliding block 12 in the mounting box 5 drives a push rod 13 to rotate, the push rod 13 drives a positioning plate 8 to rotate downwards by taking the positioning seat 14 at the top of the positioning plate 8 as a fulcrum, the positioning plate 8 stably and vertically rotates downwards under the clamping of a guide plate 15 and a guide frame 16, a pressing block 9 is further driven to press a roadbed, and the moving amplitude of a detection pen 6 on the detection frame 7 is obtained according to the rotating amplitude of the mounting box 5;

s2, removing dust on the surface of the roadbed: when a user starts the motor 11, the motor 10 drives the rotating disc 28 to rotate through the driving rod 4, the rotating disc 28 drives the driving wheel 29 to rotate through the belt 30, the driving wheel 29 drives the rotating rod 31 to rotate, the rotating rod 31 drives the fan 32 to rotate, dust on the surface of the roadbed is blown away and is discharged from the opening on the outer side of the base 3, and the roadbed compactness detection accuracy is improved;

s3, dust falling on the surface of the roadbed: when briquetting 9 is returned through the back and forth movement of slider 12, drive deflector 15 upward movement, deflector 15 drives sleeve 18 upward movement through slide bar 17, sleeve 18 drives threaded rod 19 and rotates, threaded rod 19 drives cam 20 and rotates, cam 20 is tangent with inserted bar 21, promote inserted bar 21 and remove to the inboard of spraying water box 10, and then drive baffle 24 and remove, baffle 24 uses bracing piece 25 as the fulcrum, rotate, open inlet tube 27 from this, spray water to the road bed, make the superficial dirt on road bed surface deposit fast, supplementary road bed is restoreed, and avoid dust to fly upward.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.