An integrated portable pavement interlayer bond strength testing device

Abstract

The present application relates to the technical field of road surface bonding strength detection, in particular to a kind of integrated portable road surface interlayer bonding strength test equipment, including the bonding detection component being arranged in the top of base disc;The outer side of bonding detection component is equipped with round groove opening cleaning device;Round groove opening cleaning device includes the drive slot component being arranged in the top of base disc;The bottom of drive slot component is equipped with round groove diameter adjusting component;The bottom of round groove diameter adjusting component is circularly and evenly equipped with several slotting cone in the ground slotting;The side end of each slotting cone is equipped with a cleaning component for cleaning the inside of round groove.The present application can open corresponding diameter and depth round groove in the ground according to demand before interlayer bonding test of ground is carried out, and the inside of round groove is automatically cleaned after opening is completed, and corresponding test equipment does not need to be replaced for different test modes, so that the effect of high portability and improving detection efficiency is improved.

Description

Technical Field

[0001] This invention relates to the field of pavement bonding strength testing technology, specifically to an integrated portable pavement interlayer bonding strength testing device. Background Technology

[0002] Asphalt pavement is widely used in highway construction in my country. To ensure the integrity of the multi-layer composite system of highway asphalt pavement, guarantee the coordination of stress and strain changes under vehicle loads, prevent rainwater infiltration into the pavement structure, and improve resistance to water damage, the interlayer bonding of asphalt pavement is increasingly attracting widespread attention from construction engineers. Multi-layer pavements are generally laid in layers, with binders spread between layers to improve interlayer bonding performance. However, due to construction pollution, differences in material properties, and other reasons, the interlayer binder often loses its effectiveness, making the pavement interlayer a weak link in the pavement structure. Under heavy traffic loads, significant shear stress is generated between layers. When this force exceeds the shear strength of the interlayer binder, displacement of the surface layer at the interface occurs. In severe cases, this can lead to pavement damage such as shoving, shoving, detachment, and peeling due to insufficient interlayer bonding strength. Moisture infiltration further exacerbates pavement damage, seriously affecting pavement performance and durability. Therefore, it is necessary to test the interlayer bonding performance of the pavement.

[0003] Traditional testing methods typically involve first creating a circular groove of a specified depth on the outside of the test area to separate it from the adjacent ground. Then, an adhesive is applied to the surface of the test area. Next, the appropriate test piece or torsion shear disc is replaced as needed. Finally, the test piece or torsion shear disc is bonded to the test area, and a pull-out or torsion shear interlayer bonding test is performed. However, traditional testing devices have the following problems: First, manual grooving and cleaning of the groove are required before testing, which is inefficient and makes precise control of the groove diameter difficult. Second, different testing equipment needs to be changed for different testing methods (pull-out and torsion shear), resulting in insufficient portability and inconvenience. There is a lack of equipment that can create a circular groove of the appropriate diameter and depth on the ground before interlayer bonding testing, automatically clean the inside of the groove after creation, and eliminate the need to change testing equipment for different testing methods, thus offering high portability and improved testing efficiency. Summary of the Invention

[0004] The purpose of this invention is to provide an integrated portable pavement interlayer bond strength testing device to solve the problems mentioned in the background art. To achieve the above objective, this invention provides the following technical solution: An integrated portable pavement interlayer bond strength testing device, comprising a base plate with a through hole at its center; further comprising a bonding detection component located directly above the base plate; a circular groove opening and cleaning device provided on the outer side of the bonding detection component; the circular groove opening and cleaning device comprising a driving groove opening component located above the base plate; a circular groove diameter adjustment component at the bottom of the driving groove opening component for adjusting the diameter of the circular groove opened on the ground; a plurality of groove opening cones uniformly arranged in a circular shape at the bottom of the circular groove diameter adjustment component; a cleaning component at the side end of each groove opening cone for cleaning the inside of the circular groove; and two linked adhesive dispensing devices symmetrically arranged on both sides of the top of the base plate for feeding adhesive to the bonding detection area.

[0005] Preferably, the bonding detection component includes a first mounting bracket disposed on the top of the base plate; a first electric push rod with its output end facing downward is disposed at the bottom of the upper part of the first mounting bracket, the first electric push rod being positioned corresponding to the center of the through hole on the base plate; a second mounting bracket is disposed at the output end of the first electric push rod; a first motor with its output end facing downward is disposed on the inner side of the second mounting bracket; a torsion shear plate is disposed at the output end of the first motor; a pull-out force sensor is disposed at the output end of the first electric push rod; and a torsion shear force sensor is disposed at the output end of the first motor.

[0006] Preferably, the drive slotting assembly includes two second motors symmetrically arranged on both sides of the top of the base plate; two drive screws are vertically arranged at the output ends of the two second motors respectively; two limiting rods are symmetrically and vertically arranged on both sides of the top of the base plate; a mounting ring is provided directly above the base plate, and a first electric push rod passes through the inner center of the mounting ring; the two sides of the mounting ring pass through the two limiting rods respectively and are slidably connected to them; the other two sides of the mounting ring pass through the two drive screws respectively and are threadedly connected to them; a rotating ring corresponding to its center is provided at the bottom of the mounting ring, and a toothed groove is provided on the outer side of the lower part of the rotating ring; a third motor with its output end facing downward is provided on one side of the bottom of the mounting ring; the output end of the third motor is provided with a first gear and the first gear meshes with the toothed groove at the lower part of the rotating ring.

[0007] Preferably, the groove diameter adjustment assembly includes a center located at the bottom of the rotating ring and a corresponding drive ring, the drive ring being hollow inside; a first toothed ring is rotatably provided on the inner side of the drive ring; a second toothed ring with the same center as the first toothed ring is rotatably provided inside the drive ring; a fourth motor is provided inside the drive ring; and a second gear that meshes with the inner side of the second toothed ring is provided at the output end of the fourth motor.

[0008] Preferably, the bottom of the drive ring is uniformly provided with a plurality of first toothed rods in a circular shape, and the plurality of first toothed rods are slidably connected to the bottom of the drive ring; the inner side of the bottom of the drive ring is uniformly provided with a plurality of third gears in a circular shape, and the plurality of third gears are rotatably connected to the bottom of the drive ring; each third gear meshes with the side end of an adjacent first toothed rod; each first toothed rod has a vertically provided slotted cone at its bottom; the bottom of the slotted cone is conical and the lower part of the slotted cone is provided with a dust collection chamber.

[0009] Preferably, the cleaning component includes a dust inlet located on one side of the lower part of the slotted cone, which communicates with the interior of the dust collection chamber; a rotating shaft rotatably connected to the middle of the lower end of the slotted cone; a mounting plate connected to the center of the rotating shaft at one end; a second electric push rod horizontally located at the center of the side end of the mounting plate; a connecting sleeve at the output end of the second electric push rod; four sliding blocks slidably connected to the mounting plate evenly arranged in a circle on the side end of the mounting plate; a sliding plate at the side end of each sliding block; a set of first connecting rods and second connecting rods respectively arranged on the four sides of the connecting sleeve; one end of the first connecting rod and the second connecting rod are rotatably connected to the side end of the connecting sleeve, and the other end of the first connecting rod and the second connecting rod are rotatably connected to the side end of the sliding plate; a circular flexible sleeve is fitted around the four sliding plates and the sliding blocks.

[0010] Preferably, the other end of the rotating shaft is provided with a fourth gear; an arc-shaped slide fixed to the side end of the slotted cone is provided directly above the fourth gear; a fifth gear is slidably connected on the arc-shaped slide, and the fifth gear meshes with the fourth gear; a sixth gear is rotatably provided on the side end of the slotted cone directly above the fifth gear, and the fifth gear meshes with the sixth gear when the fifth gear is located in the middle of the arc-shaped slide; a seventh gear is provided inside the dust collection chamber and coaxially connected with the sixth gear; a second toothed rod is vertically slidably connected inside the dust collection chamber, and the upper part of the second toothed rod is magnetically connected to the inner wall of the dust collection chamber; the upper part of the second toothed rod meshes with the seventh gear, and the lower part of the second toothed rod closes the dust inlet when the second toothed rod descends to a certain height.

[0011] Preferably, the linkage dispensing device includes a dispensing cylinder located on one side of the top of the base plate; a dispensing port is inclinedly provided on the side of the dispensing cylinder near the through hole of the base plate; an injection port is provided on the other side of the dispensing cylinder, and a one-way valve is provided at the injection port; the top of the dispensing cylinder is open and a piston block is provided in a sliding connection with the open part; a sliding frame is provided on one side of the dispensing cylinder; a first driving block and a second driving block are vertically slidably connected at both ends of one side of the sliding frame, the second driving block is located above the first driving block, and a first spring is vertically provided between the bottom of the first driving block and the bottom of the sliding frame.

[0012] Preferably, a first connecting rod is provided between the first driving block and the piston block, and a second connecting rod is provided between the second driving block and the top of the second mounting bracket; a trigger rod is provided at the side end of the first driving block and is horizontally slidably connected thereto, and a second spring is provided at the sliding connection between the trigger rod and the first driving block; a trigger block is provided at the lower side end of the first driving block, and the top of the trigger block and the bottom of the trigger rod are provided with mutually fitting inclined surfaces; a protrusion is provided at the side end of the trigger rod, and a stop rod is provided at the side end of the second driving block that abuts against the protrusion at the side end of the trigger rod; the stop rod and the trigger block are offset from each other.

[0013] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0014] In this invention, a circular groove is first opened on the outer side of the detection area to separate the detection area from adjacent areas. The diameter of the circular groove to be opened is adjusted according to the size of the detection area. The diameter of the circle formed by several slotted cones is adjusted by the circular groove diameter adjustment component to correspond to the diameter of the circular groove to be set. With the cooperation of the drive slotting component, several slotted cones are driven to descend and gradually penetrate into the ground. The depth of the slotted cones into the ground is controlled by the number of rotations of the drive screw, thereby controlling the depth of the circular groove. While the slotted cones are penetrating the ground, they are driven to rotate clockwise, thereby opening a circular groove on the ground. This achieves the effect of opening a circular groove of a specified depth and diameter on the ground according to the requirements, thereby improving the detection efficiency.

[0015] In this invention, after the circular groove is opened, several grooving cones are driven to rotate counterclockwise and rise and gradually separate from the circular groove with the help of the grooving component. During the separation process, the cleaning component descends with the help of the cleaning component to automatically suck the gravel and dust in the circular groove into the grooving cone to achieve the cleaning work of the circular groove. This realizes the automatic cleaning of the gravel accumulated in the circular groove after the circular groove is opened on the ground, without the need for manual cleaning, thereby improving the cleaning efficiency. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0017] Figure 2 A three-dimensional structural diagram of the bonding detection component and the cleaning device for the circular groove in this invention;

[0018] Figure 3 This is a three-dimensional structural diagram of the drive slotting component in this invention;

[0019] Figure 4 This is a three-dimensional structural diagram of the bonding detection component in this invention;

[0020] Figure 5 This is a three-dimensional structural diagram of the circular groove diameter adjustment component in this invention;

[0021] Figure 6 This is a cross-sectional view of the circular groove diameter adjustment component in this invention;

[0022] Figure 7 This is a three-dimensional structural diagram of the slotted cone and cleaning component in this invention;

[0023] Figure 8 for Figure 7 Enlarged view of point A in the middle;

[0024] Figure 9 This is a partial structural diagram of the cleaning component in this invention. Figure 1 ;

[0025] Figure 10 This is a partial structural diagram of the cleaning component in this invention. Figure 2 ;

[0026] Figure 11 This is a partial structural diagram of the present invention;

[0027] Figure 12 This is a three-dimensional structural diagram of the linkage dispensing device in this invention;

[0028] Figure 13 This is a partial structural cross-sectional view of the linkage dispensing device in this invention.

[0029] In the diagram: 1. Base plate; 2. Adhesion detection component; 21. First mounting bracket; 22. First electric push rod; 23. Second mounting bracket; 24. First motor; 25. Torque-shear disc; 26. Pull-out force sensor; 27. Torque-shear force sensor; 3. Circular groove opening and cleaning device; 31. Drive grooving component; 311. Second motor; 312. Drive screw; 313. Limiting rod; 314. Mounting ring; 315. Rotating ring; 316. Third motor; 317. First gear; 32. Circular groove diameter adjustment component; 321. Drive ring; 322. First toothed ring; 323. Second toothed ring; 324. Fourth motor; 325. Second gear; 326. First toothed rod; 327. Third gear; 33. Grooving cone; 34. Cleaning component; 341. Dust inlet; 342. Rotating shaft; 343. Mounting plate; 344. Second electric push rod; 345. Connecting sleeve; 346. Sliding block; 347. Sliding plate; 348. First connecting rod; 349. Second connecting rod; 350. Flexible sleeve; 351. Fourth gear; 352. Arc-shaped slide; 353. Fifth gear; 354. Sixth gear; 355. Seventh gear; 356. Second toothed rod; 4. Linked glue dispensing device; 41. Glue dispensing cylinder; 42. Piston block; 43. Sliding frame; 44. First drive block; 45. Second drive block; 46. First spring; 47. First connecting rod; 48. Second connecting rod; 49. Trigger rod; 491. Second spring; 492. Trigger block; 493. Protrusion; 494. Stop rod. Detailed Implementation

[0030] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0031] Please see Figures 1 to 13 This invention provides a technical solution: an integrated portable road interlayer bond strength testing device, comprising a base plate 1 with a through hole at its center; characterized in that it further comprises a bonding detection component 2 located directly above the base plate 1; a circular groove opening and cleaning device 3 is provided on the outer side of the bonding detection component 2; the circular groove opening and cleaning device 3 includes a driving groove opening component 31 located above the base plate 1; a circular groove diameter adjustment component 32 is provided at the bottom of the driving groove opening component 31 for adjusting the diameter of the circular groove opened on the ground; the bottom of the circular groove diameter adjustment component 32 is circularly and uniformly provided with a plurality of groove opening cones 33 that groove the ground; each groove opening cone 33 has a cleaning component 34 on its side end for cleaning the inside of the circular groove; two linkage dispensing devices 4 for feeding adhesive to the bonding detection area are symmetrically provided on both sides of the top of the base plate 1.

[0032] In this embodiment, as Figures 1 to 13 As shown, the bonding detection component 2 includes a first mounting bracket 21 located on the top of the base plate 1; a first electric push rod 22 with its output end facing downward is located at the bottom of the upper part of the first mounting bracket 21, and the position of the first electric push rod 22 corresponds to the center of the through hole on the base plate 1; a second mounting bracket 23 is located at the output end of the first electric push rod 22; a first motor 24 with its output end facing downward is located on the inner side of the second mounting bracket 23; a torsion shear plate 25 is located at the output end of the first motor 24; a pull-out force sensor 26 is located at the output end of the first electric push rod 22; and a torsion shear force sensor 27 is located at the output end of the first motor 24.

[0033] In this embodiment, as Figures 1 to 13 As shown, the drive slotting assembly 31 includes two second motors 311 symmetrically arranged on both sides of the top of the base plate 1; two drive screws 312 are vertically arranged at the output ends of the two second motors 311 respectively; two limiting rods 313 are symmetrically and vertically arranged on both sides of the top of the base plate 1; a mounting ring 314 is provided directly above the base plate 1, and a first electric push rod 22 passes through the inner center of the mounting ring 314; the two sides of the mounting ring 314 pass through the two limiting rods 313 respectively and are slidably connected to them; the other two sides of the mounting ring 314 pass through the two drive screws 312 respectively and are threadedly connected to them; a rotating ring 315 corresponding to its center is provided at the bottom of the mounting ring 314, and a toothed groove is provided on the outer side of the lower part of the rotating ring 315; a third motor 316 with its output end facing downward is provided on one side of the bottom of the mounting ring 314; a first gear 317 is provided at the output end of the third motor 316 and the first gear 317 meshes with the toothed groove at the lower part of the rotating ring 315;

[0034] The circular groove diameter adjustment assembly 32 includes a center located at the bottom of the rotating ring 315 and a corresponding drive ring 321. The drive ring 321 is hollow inside. A first toothed ring 322 is rotatably provided on the inner side of the drive ring 321. A second toothed ring 323 with the same center as the first toothed ring 322 is rotatably provided inside the drive ring 321. A fourth motor 324 is provided inside the drive ring 321. A second gear 325 that meshes with the inner side of the second toothed ring 323 is provided at the output end of the fourth motor 324.

[0035] The bottom of the drive ring 321 is uniformly provided with a plurality of first toothed rods 326 in a circular shape, and the plurality of first toothed rods 326 are slidably connected to the bottom of the drive ring 321; the inner side of the bottom of the drive ring 321 is uniformly provided with a plurality of third gears 327 in a circular shape, and the plurality of third gears 327 are rotatably connected to the bottom of the drive ring 321; each third gear 327 meshes with the side end of an adjacent first toothed rod 326; each first toothed rod 326 has a vertically provided slotted cone 33 at its bottom; the bottom of the slotted cone 33 is conical and the lower part of the slotted cone 33 is provided with a dust collection chamber;

[0036] The cleaning component 34 includes a dust inlet 341 located on one side of the lower part of the slotted cone 33, which communicates with the interior of the dust collection chamber; a rotating shaft 342 rotatably connected to the lower end of the slotted cone 33 is located at the middle of the lower end; a mounting plate 343 connected to the rotating shaft 342 is located at one end of the rotating shaft 342; a second electric push rod 344 is horizontally located at the center of the side end of the mounting plate 343; a connecting sleeve 345 is located at the output end of the second electric push rod 344; four circular mounting plates are evenly arranged on the side end of the mounting plate 343. 343 slidably connected sliding blocks 346; each sliding block 346 has a sliding plate 347 on its side end; the four sides of the connecting sleeve 345 are respectively provided with a set of first connecting rods 348 and second connecting rods 349; one end of the first connecting rods 348 and second connecting rods 349 is rotatably connected to the side end of the connecting sleeve 345, and the other end of the first connecting rods 348 and second connecting rods 349 is rotatably connected to the side end of the sliding plate 347; a circular flexible sleeve 350 is sleeved on the outer side of the four sliding plates 347 and the sliding blocks 346;

[0037] The other end of the rotating shaft 342 is provided with a fourth gear 351; an arc-shaped slide 352 fixed to the side end of the slotted cone 33 is provided directly above the fourth gear 351; a fifth gear 353 is slidably connected on the arc-shaped slide 352, and the fifth gear 353 meshes with the fourth gear 351; a sixth gear 354 is rotatably provided on the side end of the slotted cone 33 directly above the fifth gear 353, and the fifth gear 353 meshes with the sixth gear 354 when the fifth gear 353 is located in the middle of the arc-shaped slide 352; a seventh gear 355 is provided inside the dust collection chamber and coaxially connected with the sixth gear 354; a second toothed rod 356 is vertically slidably connected inside the dust collection chamber, and the upper part of the second toothed rod 356 is magnetically connected to the inner wall of the dust collection chamber; the upper part of the second toothed rod 356 meshes with the seventh gear 355, and when the second toothed rod 356 descends to a certain height, the lower part of the second toothed rod 356 closes the dust inlet 341.

[0038] In this embodiment, as Figures 1 to 13 As shown, the linkage glue dispensing device 4 includes a glue dispensing cylinder 41 located on one side of the top of the base plate 1; the glue dispensing cylinder 41 has a glue outlet inclinedly arranged on the side near the through hole of the base plate 1; the other side of the glue dispensing cylinder 41 has a glue injection port, and a one-way valve is provided at the glue injection port; the top of the glue dispensing cylinder 41 is open and a piston block 42 is provided in a sliding connection with it; a sliding frame 43 is provided on one side of the glue dispensing cylinder 41; a first driving block 44 and a second driving block 45 are vertically slidably connected to both ends of one side of the sliding frame 43, the second driving block 45 is located above the first driving block 44, and a first spring 46 is vertically arranged between the bottom of the first driving block 44 and the bottom of the sliding frame 43;

[0039] A first connecting rod 47 is provided between the first driving block 44 and the piston block 42, and a second connecting rod 48 is provided between the top of the second driving block 45 and the second mounting bracket 23; a trigger rod 49 is provided on the side end of the first driving block 44 and is horizontally slidably connected thereto, and a second spring 491 is provided at the sliding connection between the trigger rod 49 and the first driving block 44; a trigger block 492 is provided on the lower side end of the first driving block 44, and the top of the trigger block 492 and the bottom of the trigger rod 49 are provided with mutually fitting inclined surfaces; a protrusion 493 is provided on the side end of the trigger rod 49, and a stop rod 494 is provided on the side end of the second driving block 45 that abuts against the protrusion 493 on the side end of the trigger rod 49; the stop rod 494 and the trigger block 492 are staggered.

[0040] The method of use and advantages of this invention: The working process of this integrated portable pavement interlayer bond strength testing device is as follows:

[0041] like Figures 1 to 13 As shown, when using this device, a circular groove first needs to be made on the outer side of the detection area to separate the detection area from the adjacent area. The diameter of the circular groove to be made is adjusted according to the size of the detection area. The output end of the fourth motor 324 is controlled to drive the second gear 325 to rotate. According to the rotation direction and rotation angle of the second gear 325, with the cooperation of the first toothed ring 322 and the second toothed ring 323, the rotation direction and rotation angle of several third gears 327 are controlled so that several first toothed rods 326 slide synchronously towards the center of the drive ring 321 or away from the center of the drive ring 321. The diameter of the circle formed by several slotted cones 33 is adjusted so that it matches the desired locking position. After the diameter of the circular groove is matched, two second motors 311 control two drive screws 312 to rotate, causing several slotted cones 33 to descend and gradually penetrate into the ground. The depth of the slotted cones 33 into the ground is controlled according to the number of rotations of the drive screws 312, thereby controlling the depth of the circular groove. While the slotted cones 33 are penetrating the ground, the third motor 316 is controlled to work, driving the first gear 317 to rotate, which in turn drives the drive ring 321 to rotate clockwise. This allows several slotted cones 33 to penetrate the ground while rotating clockwise around the center of the drive ring 321, thus realizing the function of opening a circular groove on the ground. This achieves the effect of opening a circular groove of a specified depth and diameter on the ground according to the requirements, thereby improving the detection efficiency.

[0042] During the process of creating the circular groove, in the initial state, the dust inlet 341 at the lower part of the groove cone 33 is open. By controlling the second electric push rod 344, the connecting sleeve 345 slides away from the groove cone 33. With the cooperation of four sets of first connecting rods 348 and second connecting rods 349, several sliding plates 347 slide synchronously away from the rotating shaft 342, thus evenly expanding the flexible sleeve 350 in a circular shape, causing the surface of the flexible sleeve 350 to contact the ground. After contact, the second electric push rod 344 stops working. At this time, as... Several slotted cones 33 rotate clockwise, causing several flexible sleeves 350 and rotating shaft 342 to rotate counterclockwise under the friction of the ground. This causes the fourth gear 351 to rotate counterclockwise, resulting in the fifth gear 353 sliding from one side of the arc-shaped slide 352 to the other. During this sliding process, the fifth gear 353 contacts and disengages from the sixth gear 354, causing the sixth gear 354 to rotate counterclockwise by a certain angle. This, in turn, causes the seventh gear 355, which is coaxially connected to the sixth gear, to rotate by a certain angle, resulting in the second toothed rod 356 disengaging from the magnetic connection of the dust collection chamber and descending. Upon reaching the bottom of the dust collection chamber, the dust inlet 341 is sealed. Then, the second electric push rod 344 controls the flexible sleeve 350 to retract to a smaller diameter state and detach from the ground, facilitating the descent of several slotted cones 33 into the ground, with the dust inlet 341 extending deep into the circular groove. After the circular groove is created, the second electric push rod 344 is operated again to expand the flexible sleeve 350 and bring it back into contact with the ground. Then, the several slotted cones 33 are controlled to rotate counterclockwise and rise to detach from the circular groove. During this detachment, the flexible sleeve 350 rubs against the ground, causing the flexible sleeve 350 to... The rotating shaft 342 rotates clockwise by a certain angle, causing the second toothed rod 356 to rise to a certain height and magnetically connect to the side end of the dust collection chamber. At this time, the dust inlet 341 is in the state of being submerged inside the circular groove. Under the action of negative pressure, the gravel inside the circular groove is sucked into the dust collection chamber and into the dust collection box that can be detached from the side end of the slotted cone 33. The dust collection box can be removed and the gravel can be taken out for continuous collection. This achieves the effect of automatically cleaning the gravel accumulated inside the circular groove after the circular groove is opened on the ground, without the need for manual cleaning, thus improving the cleaning efficiency.

[0043] After the circular groove is opened, the area to be inspected needs to be sprayed with adhesive. First, the second mounting bracket 23 is lowered by the first electric push rod 22, so that the twisting shear disc 25 gradually approaches the inspection area. During the descent of the second mounting bracket 23, in the initial stage of descent, the second driving block 45 is driven to descend synchronously by the second connecting rod 48. The stop rod 494 on the side of the second driving block 45 drives the trigger rod 49 to descend synchronously. The first spring 46 contracts, driving the first driving block 44 to descend synchronously. This causes the piston block 42 connected to the first connecting rod 47 to move downward inside the glue dispensing cylinder 41, squeezing out the adhesive inside the glue cylinder 41. The adhesive is sprayed onto the inspection area through the glue injection port on the side of the glue dispensing cylinder 41. In the middle stage of the descent of the second mounting bracket 23, the trigger rod 49 contacts the trigger block 492, squeezing the trigger rod 49 into the inside of the first driving block 44. The second spring 491 contracts, causing the stop rod 494 to disengage from the trigger rod 49. Under the action of the first spring 46, the first drive block 44 and piston block 42 are driven to rise and reset, thereby terminating the adhesive spraying. Adhesive can be replenished inside the glue dispensing cylinder 41 through the glue injection port on the side end of the glue dispensing cylinder 41. When the second mounting bracket 23 descends to the lowest point, the torsion shear disc 25 is completely attached to the detection area. After the adhesive between the torsion shear disc 25 and the detection area helps them to fully bond, the detection area is tested according to the requirements. When pull-out testing is required, the first electric push rod 22 is activated to drive the torsion shear disc 25 to rise for pull-out testing. The pull-out force sensor 26 is responsible for collecting data. When torsion shear testing is required, the first motor 24 is activated to drive the torsion shear disc 25 to rotate in the horizontal direction for torsion shear testing. The torsion shear force sensor 27 is responsible for collecting data. Thus, it is possible to perform testing for different testing methods without changing the corresponding testing equipment, which improves the portability of the equipment. In addition, the adhesive is automatically applied to the detection area before testing to improve the testing efficiency.

[0044] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. An integrated portable pavement interlayer bond strength testing device, comprising a base plate (1) with a through hole at the center. Its features are, It also includes an adhesive detection component (2) located directly above the base plate (1); The outer side of the bonding detection component (2) is provided with a groove opening and cleaning device (3); the groove opening and cleaning device (3) includes a drive grooving component (31) located above the base plate (1). The bottom of the drive slotting assembly (31) is provided with a groove diameter adjustment assembly (32) for adjusting the diameter of the groove opened on the ground. The bottom of the circular groove diameter adjustment component (32) is circular and uniformly provided with several grooved cones (33) with grooves in the ground. Each slotted cone (33) has a cleaning component (34) on its side end for cleaning the inside of the groove. The base plate (1) has two symmetrically arranged adhesive dispensing devices (4) on both sides of the top of the adhesive testing area to be bonded. The bonding detection component (2) includes a first mounting bracket (21) located on top of the base plate (1); The bottom of the upper part of the first mounting bracket (21) is provided with a first electric push rod (22) with the output end facing downward. The output end of the first electric push rod (22) is provided with a second mounting bracket (23); the inner side of the second mounting bracket (23) is provided with a first motor (24) with the output end facing downward. The output end of the first motor (24) is equipped with a torsion shear disc (25); The cleaning component (34) includes a dust inlet (341) located on one side of the lower part of the slotted cone (33), and the dust inlet (341) is connected to the interior of the dust collection chamber; The slotted cone (33) has a rotating shaft (342) rotatably connected to the middle of its lower end; one end of the rotating shaft (342) has a mounting plate (343) connected to its center. A second electric push rod (344) is horizontally provided at the center of the side end of the mounting plate (343). The output end of the second electric push rod (344) is provided with a connecting sleeve (345); the side end of the mounting plate (343) is circular and uniformly provided with four sliding blocks (346) that are slidably connected to the mounting plate (343). Each slider (346) has a slider plate (347) on its side end; The four sides of the connecting sleeve (345) are respectively provided with a first connecting rod (348) and a second connecting rod (349). One end of the first link (348) and the second link (349) are rotatably connected to the side end of the connecting sleeve (345), and the other end of the first link (348) and the second link (349) are rotatably connected to the side end of the sliding plate (347).

2. The integrated portable pavement interlayer bond strength testing device according to claim 1, characterized in that: The first electric push rod (22) is positioned at the center of the through hole on the base plate (1); The output end of the first electric push rod (22) is equipped with a pull force sensor (26); The output end of the first motor (24) is equipped with a torsion shear force sensor (27).

3. The integrated portable pavement interlayer bond strength testing device according to claim 2, characterized in that: The drive slotting assembly (31) includes a second motor (311) symmetrically arranged on both sides of the top of the base plate (1). The output ends of the two second motors (311) are respectively provided with two drive screws (312). The base plate (1) has two symmetrical and vertically positioned limit rods (313) on both sides of the top. A mounting ring (314) is provided directly above the base plate (1), and the first electric push rod (22) passes through the center of the inner side of the mounting ring (314); The two sides of the mounting ring (314) are respectively connected to the two limiting rods (313) by sliding up and down; The other two sides of the mounting ring (314) pass through the two drive screws (312) and are threaded to them; The bottom of the mounting ring (314) is provided with a rotating ring (315) corresponding to its center, and the outer side of the lower part of the rotating ring (315) is provided with a toothed groove. A third motor (316) with its output end facing downward is provided on one side of the bottom of the mounting ring (314). The output end of the third motor (316) is provided with a first gear (317) and the first gear (317) meshes with the tooth groove at the lower part of the rotating ring (315).

4. The integrated portable pavement interlayer bond strength testing device according to claim 3, characterized in that: The circular groove diameter adjustment assembly (32) includes a center located at the bottom of the rotating ring (315) and its corresponding drive ring (321), the drive ring (321) being hollow inside; The inner side of the drive ring (321) is provided with a first toothed ring (322); the inner side of the drive ring (321) is provided with a second toothed ring (323) that is concentric with the first toothed ring (322). The drive ring (321) is equipped with a fourth motor (324); the output end of the fourth motor (324) is equipped with a second gear (325) that meshes with the inner side of the second toothed ring (323).

5. The integrated portable pavement interlayer bond strength testing device according to claim 4, characterized in that: The bottom of the drive ring (321) is circular and uniformly provided with a plurality of first toothed rods (326), and the plurality of first toothed rods (326) are slidably connected to the bottom of the drive ring (321); The bottom inner side of the drive ring (321) is uniformly provided with a number of third gears (327) in a circular shape, and the number of third gears (327) are rotatably connected to the bottom of the drive ring (321); Each third gear (327) meshes with the side end of an adjacent first toothed rod (326); Each first toothed rod (326) has a vertically provided slotted cone (33) at its bottom; the bottom of the slotted cone (33) is cone-shaped and the lower part of the slotted cone (33) is provided with a dust collection chamber.

6. The integrated portable pavement interlayer bond strength testing device according to claim 5, characterized in that: The four sliding plates (347) and sliding blocks (346) are fitted with circular flexible sleeves (350).

7. The integrated portable pavement interlayer bond strength testing device according to claim 6, characterized in that: The other end of the rotating shaft (342) is provided with a fourth gear (351); An arc-shaped slide (352) is fixed to the side end of the slotted cone (33) directly above the fourth gear (351). A fifth gear (353) is slidably connected to the arc-shaped carriage (352), and the fifth gear (353) meshes with the fourth gear (351); A sixth gear (354) is provided directly above the fifth gear (353) and is rotatably located on the side end of the slotted cone (33). When the fifth gear (353) is located in the middle of the arc-shaped slide (352), the fifth gear (353) meshes with the sixth gear (354). The dust collection chamber is equipped with a seventh gear (355) that is coaxially connected to the sixth gear (354). A second toothed rod (356) is vertically slidably connected inside the dust collection chamber, and the upper part of the second toothed rod (356) is magnetically connected to the inner wall of the dust collection chamber; The upper part of the second toothed rod (356) meshes with the seventh gear (355), and when the second toothed rod (356) descends to a certain height, the lower part of the second toothed rod (356) closes the dust inlet (341).

8. The integrated portable pavement interlayer bond strength testing device according to claim 7, characterized in that: The linkage glue dispensing device (4) includes a glue dispensing cylinder (41) located on one side of the top of the base plate (1). The glue dispensing cylinder (41) has a glue outlet at an angle on the side near the through hole of the base plate (1); The other side of the glue dispensing cylinder (41) is provided with a glue injection port, and a one-way valve is provided at the glue injection port; The top of the dispensing cylinder (41) is open and a piston block (42) is provided at the open part for sliding connection with it. A sliding frame (43) is provided on one side of the dispensing cylinder (41). The sliding frame (43) has a first drive block (44) and a second drive block (45) vertically slidably connected at both ends on one side. The second drive block (45) is located above the first drive block (44), and a first spring (46) is vertically provided between the bottom of the first drive block (44) and the bottom of the sliding frame (43).

9. The integrated portable pavement interlayer bond strength testing device according to claim 8, characterized in that: A first connecting rod (47) is provided between the first drive block (44) and the piston block (42), and a second connecting rod (48) is provided between the top of the second drive block (45) and the second mounting bracket (23). The side end of the first drive block (44) is provided with a trigger rod (49) that is horizontally slidably connected to it, and a second spring (491) is provided at the sliding connection between the trigger rod (49) and the first drive block (44). The lower side of the first drive block (44) is provided with a trigger block (492), and the top of the trigger block (492) and the bottom of the trigger rod (49) are provided with mutually fitting inclined surfaces; The trigger rod (49) has a protrusion (493) on its side end, and the second drive block (45) has a stop rod (494) on its side end that abuts against the protrusion (493) on the side end of the trigger rod (49). The stop lever (494) and the trigger block (492) are set out to be offset.

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