Compaction degree detection equipment for road test detection

Abstract

The utility model relates to the related technical field of road test detection, in particular to a compaction degree detection device for road test detection, which comprises a counterweight bottom frame; the top of the counter weight bottom frame is fixedly connected with a cross-shaped fixing frame, a telescopic rod is arranged in the cross-shaped fixing frame, the bottom end of the telescopic rod penetrates through the cross-shaped fixing frame and extends to a cutting ring, the cutting ring is fixedly connected with the telescopic rod, and two rotating brushes are arranged at the bottom of the cutting ring. The two sides of the top of the cutting ring are each provided with a linkage mechanism used for controlling the rotating brush to clean ground surface soil. Under the matching action of the cross-shaped fixing frame, the telescopic rod, the cutting ring, the rotating brush and the linkage mechanism, the road surface capping soil can be cleaned while the cutting ring samples the road, so that the condition that the road compactness detection data is inaccurate due to the fact that the capping soil on the road surface is doped in a sample during sampling is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field related to highway test detection, in particular to compaction detection equipment for highway test detection. Background Art

[0002] Compaction degree, also known as tamping degree, refers to the ratio of the dry density of soil or other road construction materials after compaction to the standard maximum dry density, expressed as a percentage. The compaction quality of roadbed and pavement is one of the most important internal indicators of road engineering construction quality management. Only by fully compacting the roadbed and pavement structure layers can the strength, rigidity, stability and flatness of the roadbed and pavement be guaranteed, thereby extending the service life of the roadbed and pavement.

[0003] The utility model patent with announcement number CN219757754U discloses a highway compaction test detection device, which belongs to the technical field related to highway detection equipment. It solves the problem that the sampling depth of the highway cannot be controlled during use in the prior art, and the sample in the ring knife is difficult to take out. When it is necessary to perform drilling sampling operations on multiple locations of the highway, the device is very inconvenient to move and needs to be carried manually, which increases the physical effort of the staff. The device includes a base, a mounting groove is provided on the surface of the base, an inner container box is placed inside the mounting groove, support plates are fixedly connected to both sides of the upper surface of the base, the top of the support plate is rotatably connected to a flap, one side of the flap is fixedly connected to a hand rod, and a telescopic cylinder is fixedly installed on the surface of the flap. In the utility model, a ring knife, a flap, a support plate, a limit bolt and a spring are provided. When the ring knife completes sampling, the limit bolt is pulled to disengage the limit bolt from the inside of the limit socket, releasing the clamping state between the limit bolt and the flap. The upper handle rod drives the flap to rotate, completing the deflection movement of the ring knife, adjusting the bottom direction of the ring knife, and facilitating the removal of the sample from the ring knife. This greatly facilitates the staff's operation of removing the sample from the ring knife, and solves the problem that it is difficult to remove the sample from the ring knife in the existing device.

[0004] However, the above patent still has shortcomings: although this patent greatly facilitates the staff to take out the sample in the ring knife, it does not have the function of cleaning the loose soil on the road before the ring knife takes samples from the road, resulting in the loose soil on the road surface being mixed into the sample while sampling the road, resulting in inaccurate road compaction detection data. Utility Model Content

[0005] In order to make up for the above deficiencies, the utility model provides a compaction detection device for highway test detection, so as to solve the problem proposed in the above background technology that it does not have the function of cleaning the loose soil on the highway before the ring knife takes samples of the highway, resulting in the loose soil on the highway surface being mixed into the sample while sampling the highway, resulting in inaccurate highway compaction detection data.

[0006] The technical solution of the utility model is:

[0007] A compaction detection device for highway test detection comprises: a counterweight bottom frame; a cross fixing frame is fixedly connected to the top of the counterweight bottom frame, a telescopic rod is arranged inside the cross fixing frame, the bottom end of the telescopic rod passes through the cross fixing frame and extends to a ring knife, the ring knife is fixedly connected to the telescopic rod, and two rotating brushes are arranged at the bottom of the ring knife; linkage mechanisms for controlling the rotating brushes to clean the loose soil on the ground are arranged on both sides of the top of the ring knife; an extrusion mechanism for automatically withdrawing the sample inside the ring knife is arranged inside the ring knife.

[0008] Preferably, the linkage mechanism includes: two connecting rods are provided on the top of the ring knife, the two connecting rods are fixedly connected to the telescopic rod, the outer surfaces of the connecting rods are rotatably connected to the first linkage rod, a second linkage rod is provided on one side of the first linkage rod, and the top of the second linkage rod is rotatably connected to the connecting rod; the bottom end of the first linkage rod is rotatably connected to the first rotating shaft, the bottom end of the second linkage rod is rotatably connected to the second rotating shaft, and the two rotating brushes are respectively fixed to the outer surfaces of the first rotating shaft and the second rotating shaft; both sides of the counterweight bottom frame are provided with gear mechanisms for controlling the two rotating brushes to rotate while separating.

[0009] Preferably, the gear mechanism includes: racks are fixedly connected to both sides of the counterweight bottom frame, and the tops of the racks are meshed with a first gear and a second gear; the two first gears are fixed to both ends of the first rotating shaft, and the two second gears are fixed to both ends of the second rotating shaft.

[0010] Preferably, the counterweight bottom frame is provided with matching travel grooves near the first rotating shaft and the second rotating shaft.

[0011] Preferably, the extrusion mechanism includes: a material stripping plate is arranged inside the ring knife, and extrusion rods are fixedly connected to both sides of the top of the material stripping plate, and the top ends of the extrusion rods pass through the ring knife and extend to the limit plates, and the limit plates are fixedly connected to the extrusion rods respectively; springs are arranged between the limit plates and the ring knife, and the springs are respectively sleeved on the outer surfaces of the extrusion rods.

[0012] Preferably, rubber pads are provided on the tops of the limiting plates, and the rubber pads are fixedly connected to the limiting plates respectively.

[0013] Preferably, a hydraulic cylinder is fixedly connected to the top of the cross fixing frame, and a telescopic end of the hydraulic cylinder is fixedly connected to the telescopic rod.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] Firstly, the utility model can clean the loose soil on the road surface while the ring knife is sampling the road through the cooperation of the cross fixing frame, telescopic rod, ring knife, rotating brush and linkage mechanism, so as to avoid the loose soil on the road surface being mixed into the sample during sampling, resulting in inaccurate road compaction detection data.

[0016] Secondly, the utility model realizes the function of automatically discharging the sample inside the ring knife after sampling the road through the cooperation of the cross fixing frame, telescopic rod, ring knife, rotating brush and extrusion mechanism, which is convenient for the user to take out the sample inside the ring knife, simplifies the user's workflow for collecting road samples, and improves work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a three-dimensional structural schematic diagram of the compaction detection device for highway test detection of the utility model;

[0018] Figure 2 It is a schematic diagram of the linkage mechanism structure of the utility model;

[0019] Figure 3 This is a schematic diagram of the gear mechanism structure of the utility model;

[0020] Figure 4 This is a schematic diagram of the extrusion mechanism structure of the utility model.

[0021] In the figure:

[0022] 1. Counterweight bottom frame; 2. Cross fixing frame; 3. Telescopic rod; 4. Ring knife; 5. Rotating brush; 6. Linkage mechanism; 7. Extrusion mechanism; 8. Connecting rod; 9. First linkage rod; 10. Second linkage rod; 11. First rotating shaft; 12. Second rotating shaft; 13. Gear mechanism; 14. Rack; 15. First gear; 16. Second gear; 17. Travel groove; 18. Stripping plate; 19. Extrusion rod; 20. Limiting plate; 21. Spring; 22. Rubber pad; 23. Hydraulic cylinder. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] See also Figures 1 to 4 The utility model describes the above technical solution in detail through the following embodiments:

[0025] A compaction detection device for highway test detection comprises: a counterweight bottom frame 1; a cross fixing frame 2 is fixedly connected to the top of the counterweight bottom frame 1, a telescopic rod 3 is arranged inside the cross fixing frame 2, the bottom end of the telescopic rod 3 passes through the cross fixing frame 2 and extends to the ring knife 4, the ring knife 4 is fixedly connected to the telescopic rod 3, and two rotating brushes 5 are arranged at the bottom of the ring knife 4; linkage mechanisms 6 for controlling the rotating brushes 5 to clean the loose soil on the ground are arranged on both sides of the top of the ring knife 4; an extrusion mechanism 7 for automatically returning the sample inside the ring knife 4 is arranged inside the ring knife 4, a user controls the telescopic rod 3 to move downward, and the telescopic rod 3 moves downward while driving the ring knife 4 and the linkage mechanism 6, so that when the ring knife 4 moves downward, the linkage mechanism 6 controls the two rotating brushes 5 to rotate while moving away from each other, so that the two rotating brushes 5 clean the loose soil on the surface of the highway, and can clean the loose soil on the surface of the highway while the ring knife 4 samples the highway, so as to avoid the loose soil on the surface of the highway being mixed in the sample during sampling, resulting in inaccurate highway compaction detection data.

[0026] like Figure 2 As shown, the linkage mechanism 6 includes: two connecting rods 8 are arranged on the top of the ring knife 4, the two connecting rods 8 are fixedly connected to the telescopic rod 3, the outer surface of the connecting rod 8 is rotatably connected to the first linkage rod 9, a second linkage rod 10 is arranged on one side of the first linkage rod 9, and the top of the second linkage rod 10 is rotatably connected to the connecting rod 8; the bottom end of the first linkage rod 9 is rotatably connected to the first rotating shaft 11, the bottom end of the second linkage rod 10 is rotatably connected to the second rotating shaft 12, and the two rotating brushes 5 are respectively fixed to the first rotating shaft 11 and the second rotating shaft 12 outer surface; both sides of the counterweight bottom frame 1 are provided with a gear mechanism 13 for controlling the two rotating brushes 5 to rotate while separating, and the telescopic rod 3 drives the connecting rod 8 while moving vertically downward, and the connecting rod 8 squeezes the top of the first linkage rod 9 and the second linkage rod 10, so that the bottom end of the first linkage rod 9 squeezes and pushes the first rotating shaft 11, and the bottom end of the second linkage rod 10 squeezes and pushes the second rotating shaft 12, and the second rotating shaft 12 and the first rotating shaft 11 move horizontally away from each other inside the counterweight bottom frame 1 while driving the two rotating brushes 5 away from each other.

[0027] like Figure 3 As shown, the gear mechanism 13 includes: racks 14 are fixedly connected to both sides of the counterweight bottom frame 1, and the tops of the racks 14 are meshed with a first gear 15 and a second gear 16; the two first gears 15 are fixed to the two ends of the first rotating shaft 11, and the two second gears 16 are fixed to the two ends of the second rotating shaft 12. When the first rotating shaft 11 and the second rotating shaft 12 slide away from each other inside the counterweight bottom frame 1, the first rotating shaft 11 drives the first gear 15, and the second rotating shaft 12 drives the second gear 16. The first gear 15 and the second gear 16 rotate in the opposite direction through the cooperation of the racks 14, so that the first gear 15 drives one of the rotating brushes 5 through the first rotating shaft 11, and the second gear 16 drives the other rotating brush 5 through the second rotating shaft 12, so that the two rotating brushes 5 rotate in the opposite direction to clean the loose soil on the road surface.

[0028] like Figure 1 As shown, the counterweight bottom frame 1 is provided with matching travel grooves 17 near the first rotating shaft 11 and the second rotating shaft 12, which can limit the moving travel of the first rotating shaft 11 and the second rotating shaft 12, and at the same time allow the first rotating shaft 11 and the second rotating shaft 12 to slide horizontally inside the counterweight bottom frame 1.

[0029] like Figure 4 As shown, the extrusion mechanism 7 includes: a stripping plate 18 is arranged inside the ring knife 4, and extrusion rods 19 are fixedly connected to both sides of the top of the stripping plate 18, and the tops of the extrusion rods 19 penetrate the ring knife 4 and extend to the limit plates 20, and the limit plates 20 are fixedly connected to the extrusion rods 19 respectively; springs 21 are arranged between the limit plates 20 and the ring knife 4, and the springs 21 are respectively sleeved on the outer surfaces of the extrusion rods 19. When the ring knife 4 samples the highway, the telescopic rod 3 drives the ring knife 4 to move vertically upward, and the ring knife 4 drives the stripping plate 18, the extrusion rod 19, the limit plate 20 and the spring 21. When the limit plate 20 contacts the cross fixing frame 2, the cross fixing frame 2 squeezes the limit plate 20, and the limit plate 20 drives the stripping plate 18 through the extrusion rod 19, so that the stripping plate 18 squeezes the sample inside the ring knife 4, and then the sample is automatically withdrawn from the inside of the ring knife 4.

[0030] like Figure 4 As shown, rubber pads 22 are provided on the tops of the limit plates 20, and the rubber pads 22 are fixedly connected to the limit plates 20 respectively. When the limit plates 20 are in contact with the cross fixing frame 2, noise can be reduced at the contact point between the limit plates 20 and the cross fixing frame 2 to avoid generating loud noise.

[0031] like Figure 1 and Figure 2As shown, a hydraulic cylinder 23 is fixedly connected to the top of the cross fixing frame 2, and the telescopic end of the hydraulic cylinder 23 is fixedly connected to the telescopic rod 3. The user can control the telescopic end of the hydraulic cylinder 23 to extend and retract while controlling the device to perform sampling, cleaning and automatic material return functions on the road, thereby realizing the integrated functions of sampling, cleaning and automatic material return.

[0032] Working principle: The telescopic end of the hydraulic cylinder 23 is started to extend outward, and the telescopic end of the hydraulic cylinder 23 controls the telescopic rod 3 to move downward. The telescopic rod 3 drives the connecting rod 8 while moving vertically downward. The connecting rod 8 squeezes the top of the first linkage rod 9 and the second linkage rod 10, so that the bottom end of the first linkage rod 9 squeezes and pushes the first rotating shaft 11, and the bottom end of the second linkage rod 10 squeezes and pushes the second rotating shaft 12. The second rotating shaft 12 and the first rotating shaft 11 move horizontally away from each other inside the counterweight bottom frame 1, and the two rotating brushes 5 move away from each other. The first rotating shaft 11 and the second rotating shaft 12 slide away from each other in the travel groove 17 inside the counterweight bottom frame 1. The first gear 15 is driven, and the second rotating shaft 12 drives the second gear 16. The first gear 15 and the second gear 16 rotate in the opposite direction through the cooperation of the rack 14, so that the first gear 15 drives one of the rotating brushes 5 through the first rotating shaft 11, and the second gear 16 drives the other rotating brush 5 through the second rotating shaft 12, so that the two rotating brushes 5 rotate in the opposite direction to clean the loose soil on the road surface without affecting the ring knife 4 from sampling the road. The loose soil on the road surface can be cleaned while the ring knife 4 is sampling the road, so as to avoid the loose soil on the road surface being mixed in the sample during sampling, resulting in inaccurate road compaction detection data.

[0033] Start the telescopic end of the hydraulic cylinder 23 to retract, and the telescopic end of the hydraulic cylinder 23 contracts while driving the telescopic rod 3, and the telescopic rod 3 drives the ring knife 4 to move vertically upward, and the ring knife 4 drives the stripping plate 18, the extrusion rod 19, the limit plate 20 and the spring 21. When the limit plate 20 contacts the cross fixing frame 2, the cross fixing frame 2 squeezes the limit plate 20, and the limit plate 20 drives the stripping plate 18 through the extrusion rod 19, so that the stripping plate 18 squeezes the sample inside the ring knife 4, and then the sample is automatically withdrawn from the ring knife 4, realizing the function of automatically discharging the sample inside the ring knife 4 after sampling the highway, making it convenient for users to take out the samples inside the ring knife 4, simplifying the workflow of users collecting highway samples, and improving work efficiency.

[0034] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solution deviate from the scope of the technical solution of the embodiments of the utility model.

Claims

1. A compaction detection device for highway test detection, comprising: Counterweight bottom frame (1); The invention is characterized in that a cross fixing frame (2) is fixedly connected to the top of the counterweight bottom frame (1), a telescopic rod (3) is arranged inside the cross fixing frame (2), the bottom end of the telescopic rod (3) passes through the cross fixing frame (2) and extends to the ring knife (4), the ring knife (4) is fixedly connected to the telescopic rod (3), and two rotating brushes (5) are arranged at the bottom of the ring knife (4); Both sides of the top of the ring blade (4) are provided with linkage mechanisms (6) for controlling the rotating brushes (5) to clean the floating soil on the ground. The linkage mechanisms (6) include: two connecting rods (8) are provided on the top of the ring blade (4), the two connecting rods (8) are fixedly connected to the telescopic rod (3), the outer surfaces of the connecting rods (8) are rotatably connected to the first linkage rod (9), one side of the first linkage rod (9) is provided with a second linkage rod (10), the top of the second linkage rod (10) is rotatably connected to the connecting rod (8); the bottom end of the first linkage rod (9) is rotatably connected to the first rotating shaft (11), the bottom end of the second linkage rod (10) is rotatably connected to the second rotating shaft (12), and the two rotating brushes (5) are respectively fixed to the outer surfaces of the first rotating shaft (11) and the second rotating shaft (12); and the two sides of the counterweight bottom frame (1) are provided with gear mechanisms (13) for controlling the two rotating brushes (5) to rotate while separating. An extrusion mechanism (7) for automatically withdrawing the sample inside the ring knife (4) is arranged inside the ring knife (4).

2. The compaction detection device for highway testing as claimed in claim 1, characterized in that: The gear mechanism (13) comprises: Racks (14) are fixedly connected to both sides of the counterweight bottom frame (1), and the tops of the racks (14) are meshed with a first gear (15) and a second gear (16); The two first gears (15) are fixed to two ends of the first rotating shaft (11), and the two second gears (16) are fixed to two ends of the second rotating shaft (12).

3. The compaction detection device for highway testing as claimed in claim 2, characterized in that: The counterweight bottom frame (1) is provided with matching travel grooves (17) near the first rotating shaft (11) and the second rotating shaft (12).

4. The compaction detection device for highway testing as claimed in claim 1, characterized in that: The extrusion mechanism (7) comprises: A stripping plate (18) is provided inside the circular knife (4), and both sides of the top of the stripping plate (18) are fixedly connected to extrusion rods (19), and the top ends of the extrusion rods (19) penetrate the circular knife (4) and extend to the limit plates (20), and the limit plates (20) are fixedly connected to the extrusion rods (19) respectively; A spring (21) is provided between the limit plate (20) and the ring knife (4), and the spring (21) is respectively sleeved on the outer surface of the extrusion rod (19).

5. The compaction detection device for highway testing as claimed in claim 4, characterized in that: The tops of the limiting plates (20) are each provided with a rubber pad (22), and the rubber pads (22) are respectively fixedly connected to the limiting plates (20).

6. The compaction detection device for highway testing as claimed in claim 1, characterized in that: A hydraulic cylinder (23) is fixedly connected to the top of the cross fixing frame (2), and a telescopic end of the hydraulic cylinder (23) is fixedly connected to the telescopic rod (3).

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