A road construction asphalt adhesion testing device and use method thereof

Abstract

The present invention provides a road construction asphalt adhesion test device and a method for using the same, belonging to the field of asphalt testing technology. The device includes a test device body and a landing gear, and a beaker arranged on the test device body, the landing gear is used to suspend aggregate particles wrapped with asphalt, the aggregate particles extend into a beaker filled with distilled water, and a suspension rod is arranged at one end of the landing gear; the device also includes a clamping mechanism for clamping the aggregate particles on the suspension rod, and the clamping mechanism and the suspension rod are connected. The present invention sets a clamping mechanism, when the rope is pulled downward, the lower end of the rope gradually grows to form a locking sleeve, the first support piece is reset and drives the rope to reset and tighten the locking sleeve, the aggregate particles can be quickly fixed, the requirements for fine hand movements are low, and the efficiency will not be affected when wearing gloves for testing; by setting the first support piece, the guide wheel on the first support piece is squeezed by the rope, so that the first support piece is in an inclined state, the rope can be kept in a taut state, which is conducive to fixing aggregate particles of different sizes.

Description

Technical Field

[0001] The invention relates to the technical field of asphalt testing, and in particular to a road construction asphalt adhesion testing device and a use method thereof. Background Art

[0002] The boiling method is to boil the mixture of asphalt and aggregate in water and then observe the shedding of asphalt to judge the adhesion. In the prior art, the test usually uses an emulsified asphalt adhesion test device, which includes a beaker and a landing gear, and can set the test time and temperature. The motor is controlled to automatically lift the support rod repeatedly to simulate the relative movement between aggregate particles and water. After the test, the equipment automatically stops, and then the adhesion of the emulsified asphalt to the mineral material is observed and evaluated.

[0003] In the prior art operation process, before putting the aggregate into the beaker, it is necessary to tie a rope to the aggregate particles, then suspend the aggregate particles in the asphalt, take them out after the required time and let them stand for a while, and finally fix the rope with the aggregate particles to the landing frame. Since gloves need to be worn during the experiment, the gloves affect the fine movements of the hands, so it is difficult to effectively tie the rope to the aggregate particles. In addition, when the operator moves the rope, the aggregate particles at the lower end of the rope are easy to shake due to inertia. When placed in distilled water, the aggregate particles are easy to collide with the cup wall, causing the asphalt wrapped by the aggregate particles to fall off, thereby affecting the accuracy of the results. In addition, in order to improve the accuracy, multiple tests are required, which requires tying stones to the rope multiple times, which is more troublesome. Therefore, the present application provides a road construction asphalt adhesion test device and a method for using it to meet the needs. Summary of the invention

[0004] The technical problem to be solved by the present invention is to provide a road construction asphalt adhesion testing device and a method of using the same to solve the problem that during the operation of the prior art, it is difficult to effectively tie the rope to the aggregate particles, and when the operator moves the rope, the aggregate particles at the lower end of the rope are prone to shaking due to inertia, and when placed in distilled water, the aggregate particles are prone to collide with the cup wall, causing the asphalt wrapped in the aggregate particles to fall off, thereby affecting the accuracy of the results.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0006] A road construction asphalt adhesion testing device and a method for using the same, comprising a testing device body and a landing gear, and a beaker arranged on the testing device body, wherein the landing gear is used to suspend aggregate particles wrapped with asphalt, and the aggregate particles extend into the beaker filled with distilled water, and a suspension rod is arranged at one end of the landing gear; and further comprising a clamping mechanism for clamping the aggregate particles on the suspension rod, wherein the clamping mechanism is connected to the suspension rod.

[0007] Optionally, the clamping mechanism includes a fixed plate detachably mounted at one end of the landing gear, a slot being provided on the surface of the fixed plate, a plug-in block being fixedly inserted in the slot, the plug-in block being fixedly connected to the top end of the boom, the outer end of the plug-in block being fixedly connected to a support frame, a winding tube being movably connected to the support frame, a coil formed by a rope being wound on the winding tube; a supporting component is installed in the plug-in block, one end of the supporting component is fixedly connected to a first guide block, the other end of the supporting component is fixedly connected to a guide wheel, the rope passes through a first through hole provided on the first guide block after passing around the guide wheel, the first guide block is provided with a second through hole, and the boom slides in the second through hole.

[0008] Optionally, the end of the suspension rod away from the first guide block is plugged and fixed with a second guide block, one end of the second guide block is fixedly connected to a first expansion plate, a wire groove is opened in the middle of the first expansion plate, the end of the first expansion plate away from the second guide block is fixedly connected to a pair of extrusion plates, the end of the extrusion plate away from the first expansion plate is fixedly connected to the second expansion plate, and a fixing ring is fixedly connected in the middle of the second expansion plate.

[0009] Optionally, the fixing ring is connected to the second expansion piece, and a through groove is provided in the fixing ring, and a pair of blades are fixedly connected to the inner walls of the extrusion plates;

[0010] Optionally, the rope is stuck in the wire groove after passing through the fixing ring, and the rope forms a locking sleeve near the bottom end of the suspension rod, the bottom end of the suspension rod is fixedly connected with a push rod, and the push rod extends into the locking sleeve.

[0011] Optionally, the supporting component includes a connecting piece, one end of the connecting piece is fixedly connected to a first supporting piece, the first supporting piece is fixedly connected to the guide wheel, and the other end of the connecting piece is fixedly connected to a second supporting piece, the second supporting piece is fixedly connected to the first guide block.

[0012] Optionally, the pair of blades are arranged in a staggered manner relative to each other, and the blade edges of the pair of blades are concave arc structures.

[0013] Optionally, a plurality of relatively arranged protrusions are fixedly connected in the first through hole, and the plurality of protrusions are staggered.

[0014] Optionally, a screw is fixedly connected to one end of the support frame, the coil is sleeved on the screw, and a locking cap is threadedly connected to one end of the screw away from the support frame.

[0015] Optionally, a slot is provided on the side of the winding tube, the tail end of the rope is inserted into the slot, and a limiting rod is also fixedly connected to the side of the winding tube.

[0016] The present application also provides a method for using a road construction asphalt adhesion testing device, comprising the following steps:

[0017] S1. First insert the rope close to the second guide block into the wire groove, then pinch the first guide block and pull it down;

[0018] S2, then put the stone into the locking sleeve, then loosen the first guide block, and tighten the locking sleeve to fix the aggregate particles;

[0019] S3. After the test, the extrusion plate near the outer side of the second expansion piece is pressed, and the rope in the fixing ring is cut off. At the same time, the first expansion piece is unfolded outward, so that the rope stuck in the wire groove falls off, thereby removing the contaminated rope segment.

[0020] S4. When operating again, insert the rope close to the second guide block into the wire groove again and continue the above operation.

[0021] Compared with the prior art, the present invention has at least the following beneficial effects:

[0022] In the above scheme, by setting a clamping mechanism, when the rope is pulled downward, the lower end of the rope gradually grows to form a locking sleeve. After the aggregate particles are placed in the locking sleeve, the first guide block is loosened, the first piece is reset and drives the rope to reset and tighten the locking sleeve, so that the aggregate particles can be quickly fixed. The requirements for fine hand movements are low, and the efficiency will not be affected when wearing gloves for testing.

[0023] By setting the first support sheet, the guide wheel on the first support sheet is squeezed by the rope, so that the first support sheet is in an inclined state. The advantage of such a setting is that the rope can be kept taut, which is conducive to fixing aggregate particles of different sizes.

[0024] By setting a first guide block and a second guide block, the two guide blocks keep the rope vertical, prevent the rope from shaking, and improve stability; by setting an expansion sheet and an extrusion plate on the second guide block, the second expansion sheet is compressed by pressing the extrusion plate close to the outside of the second expansion sheet, and at the same time, the second expansion sheet drives a pair of blades to cut inward, so that the rope in the fixed ring is cut off, and at the same time, the wire groove in the second expansion sheet is enlarged, so that the rope stuck in the wire groove falls off, and the contaminated rope segment can be removed.

[0025] By arranging a limit rod on the winding tube, after the rope is used, the winding tube can be loosened, and then one end of the replaced rope is inserted into the card slot, and the limit rod is quickly toggled several times to make the winding tube rotate, which is conducive to quickly winding the rope on the winding tube. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The accompanying drawings, which are incorporated herein and constitute a part of the specification, illustrate embodiments of the invention and, together with the description, further serve to explain the principles of the invention and to enable those skilled in the relevant art to make and use the invention.

[0027] Figure 1 This is a schematic diagram of the three-dimensional structure of the asphalt adhesion testing equipment for road construction;

[0028] Figure 2 for Figure 1 A schematic cross-sectional structure diagram of ;

[0029] Figure 3 for Figure 1 The enlarged structural diagram of part A in the middle;

[0030] Figure 4 It is a schematic diagram of the three-dimensional structure of the plug-in block;

[0031] Figure 5 for Figure 2 The enlarged structural diagram of part B in the middle;

[0032] Figure 6 for Figure 5 The enlarged structural diagram of the middle C part;

[0033] Figure 7 for Figure 5 The enlarged structural diagram of the D part in the middle;

[0034] Figure 8 is a schematic diagram of the three-dimensional structure of the first guide block;

[0035] Fig. 9 is a schematic diagram of a first state of a first guide block;

[0036] Fig.10 is a schematic diagram of the second state of the first guide block;

[0037] Fig.11 is a schematic diagram of the three-dimensional structure of the second guide block;

[0038] Fig.12 for Fig.11 The enlarged structural diagram of part E in the middle;

[0039] Fig.13 It is a schematic diagram of the three-dimensional structure of the blade;

[0040] Fig.14 It is a schematic diagram of the three-dimensional structure of the winding tube;

[0041] Fig.15 It is a schematic diagram of the three-dimensional structure of the screw.

[0042] 1. Test equipment body; 2. Beaker; 3. Landing gear; 4. Fixed plate; 5. Slot; 6. Plug-in block; 7. Support frame; 8. Hanging rod; 9. Push rod; 10. Rope; 11. First support plate; 12. Second support plate; 13. Connecting plate; 14. First guide block; 15. Guide wheel; 16. Screw; 17. Locking cap; 18. Winding tube; 19. Coil; 20. Locking sleeve; 21. Second guide block; 22. Extrusion plate; 23. First expansion plate; 24. Wire groove; 25. Second expansion plate; 26. Fixed ring; 27. Through groove; 28. Blade; 29. ​​Slot; 30. Limit rod; 31. First through hole; 32. Second through hole; 33. Bump.

[0043] As shown in the figure, in order to clearly implement the structure of the embodiment of the present invention, specific structures and devices are marked in the figure, but this is only for illustrative purposes and is not intended to limit the present invention to the specific structure, device and environment. According to specific needs, ordinary technicians in this field can adjust or modify these devices and environments. DETAILED DESCRIPTION

[0044] The following is a detailed description of a road construction asphalt adhesion test device and a method of using the same provided by the present invention in conjunction with the accompanying drawings and specific embodiments. At the same time, it is explained here that in order to make the embodiments more detailed, the following embodiments are the best and preferred embodiments, and those skilled in the art may also adopt other alternative methods to implement some known technologies; and the accompanying drawings are only for a more specific description of the embodiments, and are not intended to specifically limit the present invention.

[0045] It should be noted that the references to "one embodiment", "embodiment", "exemplary embodiments", "some embodiments" and the like in the specification indicate that the embodiments described may include specific features, structures or characteristics, but not every embodiment may include the specific features, structures or characteristics. In addition, when a specific feature, structure or characteristic is described in conjunction with an embodiment, it should be within the knowledge of a person skilled in the art to implement such feature, structure or characteristic in conjunction with other embodiments (whether or not explicitly described).

[0046] In general, a term can be understood, at least in part, from its use in context. For example, depending, at least in part, on the context, the term "one or more" as used herein can be used to describe any feature, structure, or characteristic in the singular sense, or can be used to describe a combination of features, structures, or characteristics in the plural sense. Additionally, the term "based on" can be understood as not necessarily intended to convey an exclusive set of factors, but can instead, depending, at least in part, on the context, allow for the presence of other factors that are not necessarily explicitly described.

[0047] It will be understood that the meanings of “on,” “over,” and “above” in the present invention should be interpreted in the broadest manner, so that “on” not only means “directly on” something, but also includes the meaning of being “on” something with intervening features or layers therebetween, and “on” or “over” not only means “on” or “above” something, but also includes the meaning of being “on” or “above” something with no intervening features or layers therebetween.

[0048] Additionally, spatially relative terms such as "under," "beneath," "lower," "above," "upper," and the like may be used herein for descriptive convenience to describe the relationship of one element or feature to another element or features, as shown in the accompanying drawings. Spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the accompanying drawings. The device may be oriented in other ways, and the spatially relative descriptors used herein may be similarly interpreted accordingly.

[0049] like Figures 1 to 15 As shown, an embodiment of the present invention provides a road construction asphalt adhesion testing device and a method of using the same, including a testing device body 1 and a landing gear 3, and a beaker 2 arranged on the testing device body 1. The testing device body 1 is a prior art, and is provided with a driving mechanism for controlling the landing gear 3, which will not be described in detail herein. The landing gear 3 is used to lift aggregate particles wrapped with asphalt, and the aggregate particles extend into the beaker 2 filled with distilled water. A suspension rod 8 is provided at one end of the landing gear 3; it also includes a clamping mechanism for clamping the aggregate particles on the suspension rod 8, and the clamping mechanism is connected to the suspension rod 8.

[0050] like Figures 3 to 10The clamping mechanism comprises a fixing plate 4 which is detachably mounted on one end of the landing gear 3, a slot 5 is provided on the surface of the fixing plate 4, a plug-in block 6 is inserted and fixed in the slot 5, the plug-in block 6 is fixedly connected to the top of the suspension rod 8, wherein the slot 5 is an arc shape adapted to the shape of the plug-in block 6, the plug-in block 6 can be limited and fixed when inserted in the slot 5, and there are several slots 5 which are arranged longitudinally, and the height position of the aggregate particles on the suspension rod 8 in the beaker 2 can be changed by placing the plug-in block 6 in the slots 5 at different height positions, and the outer end of the plug-in block 6 is fixedly connected to a support frame 7, and the support frame 7 is movably connected A winding tube 18 is connected, and a coil 19 formed by a rope 10 is wound on the winding tube 18; a support component is installed in the plug-in block 6, one end of the support component is fixedly connected to the first guide block 14, and the other end of the support component is fixedly connected to the guide wheel 15, wherein the support component includes a connecting piece 13, and a first support piece 11 and a second support piece 12 fixedly connected to both ends of the connecting piece 13, and the three are an integrated structure, wherein the first support piece 11, the second support piece 12 and the connecting piece 13 are all elastic structures, and the connecting piece 13 is a V-shaped elastic structure, the first support piece 11 and the guide wheel 15 are fixedly connected, and the second support piece The rope 10 passes through the first through hole 31 provided on the first guide block 14 after passing the guide wheel 15. The first guide block 14 is provided with a second through hole 32. The suspension rod 8 slides in the second through hole 32. The guide wheel 15 is located above the winding tube 18. The rope 10 is drawn out from the winding tube 18 and is close to the guide wheel 15. When used for the first time, the rope 10 is close to the guide wheel 15, and then passes through the first guide block 14 and the second guide block 21 in sequence, and then passes through the fixing ring 26 and is then clamped into the wire groove 24. Then, the rope 10 is pulled close to the suspension rod 8. The position of the bottom end is pulled outward, and as the end of the rope 10 close to the bottom end of the suspension rod 8 gradually extends, an empty locking sleeve 20 is formed (it should be noted that the shape of the locking sleeve 20 in the figure is for display, and it is not the specific shape of the locking sleeve 20). The aggregate particles are then placed in the locking sleeve 20, and then the position of the winding tube 18 is rotated to tighten the rope 10 and drive the locking sleeve 20 to fix the aggregate particles. The winding tube 18 continues to be rotated to make the first support piece 11 in an inclined state. The advantage of this arrangement is that the rope 10 can be kept taut, which is conducive to the fixation of aggregate particles of different sizes.

[0051] like Figure 7 The bottom end of the suspension rod 8 is fixedly connected with a push rod 9, which extends into the locking sleeve 20. When the locking sleeve 20 fixes the aggregate particles, the push rod 9 pushes toward the aggregate particles, so that the aggregate particles are away from the suspension rod 8, preventing asphalt from contaminating the suspension rod.

[0052] like Figure 6 , Fig.11 and Fig.12The end of the suspension rod 8 away from the first guide block 14 is plugged and fixed with a second guide block 21, and the rope 10 passes through the first guide block 14 and the second guide block 21. The two guide blocks keep the rope vertical, thereby preventing the rope 10 from shaking and improving stability. One end of the second guide block 21 is fixedly connected to a first expansion piece 23, and a wire groove 24 is provided in the middle of the first expansion piece 23. One end of the first expansion piece 23 away from the second guide block 21 is fixedly connected to a pair of extrusion plates 22, and one end of the extrusion plate 22 away from the first expansion piece 23 is fixedly connected to a second expansion piece 25, and the second A fixing ring 26 is fixedly connected in the middle of the expansion piece 25, wherein the first expansion piece 23 and the second expansion piece 25 are both V-shaped elastic structures, which are compressed when squeezed and reset when the expansion piece is not squeezed; after the test, the second expansion piece 25 is compressed by pressing the squeezing plate 22 close to the outside of the second expansion piece 25, and at the same time, the second expansion piece 25 drives a pair of blades 28 to cut inward, so that the rope 10 in the fixing ring 26 is cut off. Since the pair of squeezing plates 22 are both made of hard materials, the squeezing plate 22 close to the outside of the second expansion piece 25 is pressed. When the first expansion piece 23 is expanded outward, the wire groove 24 in the first expansion piece 23 is enlarged, so that the rope 10 stuck in the wire groove 24 falls off, thereby removing the contaminated rope segment, which is convenient for the next test; in subsequent use, the contaminated rope segment is first cut off by using the above structure, and then the rope close to the second guide block 21 is stuck in the wire groove 24, and then the first guide block 14 is pinched. The first guide block 14 is squeezed inward and clamps the rope 10, and the rope 10 is pulled downward at the same time. At this time, the lower end of the rope 10 It gradually grows to form a locking sleeve 20, and the upper end of the rope 10 drives the first support piece 11 to an inclined state. After the aggregate particles are placed in the locking sleeve 20, the first guide block 14 is loosened, and the first support piece 11 drives the rope 10 to reset and tighten the locking sleeve 20, so that the aggregate particles can be fixed; at the same time, a connecting piece 13 connected to the first guide block 14 is provided. Since the connecting piece 13 is a V-shaped elastic structure, when the first guide block 14 is pulled downward, the second support piece 12 is deformed and elongated. When the first guide block 14 is loosened, the second support piece 12 drives the first guide block 14 to reset, which is convenient for the next operation.

[0053] like Fig.12 and Fig.13 The fixing ring 26 is connected to the second expansion piece 25, and a through groove 27 is provided in the fixing ring 26. The inner walls of a pair of extrusion plates 22 are fixedly connected with blades 28. The pair of blades 28 are relatively staggered. In a default state, the blades 28 are not in the through grooves 27, which will not affect the movement of the rope 10 in the fixing ring 26. The blade edges of the pair of blades 28 are concave arc structures. By setting the blades 28 as a concave arc structure, the rope 10 can be fixed between the relative arc structures when the blades 28 are closed to prevent the rope 10 from being squeezed away during cutting.

[0054] like Fig. 9 and Fig.10 As described, a plurality of relatively arranged protrusions 33 are fixedly connected in the first through hole 31, and the plurality of protrusions 33 are staggered. By arranging a plurality of relatively staggered protrusions 33 in the first through hole 31, when the first guide block 14 is pinched, the plurality of protrusions 33 therein press the rope 10, thereby increasing the friction on the rope 10, which is beneficial for the operator to pull the rope 10.

[0055] like Fig.14 and Fig.15 Described, one end of the support frame 7 is fixedly connected with a screw rod 16, and the coil 19 is sleeved on the screw rod 16. The end of the screw rod 16 away from the support frame 7 is threadedly connected with a locking cap 17. By rotating the locking cap 17, the squeezing force on the winding tube 18 can be adjusted to adjust the friction force applied to the winding tube 18 when it rotates. A slot 29 is provided on the side of the winding tube 18, and the tail end of the rope 10 is inserted into the slot 29. A limiting rod 30 is also fixedly connected to the side of the winding tube 18. After the rope 10 is used, the winding tube 18 can be loosened, and then one end of the replaced rope 10 is inserted into the slot 29, and then the limiting rod 30 is moved to rotate the winding tube 18, which is conducive to quickly winding the rope 10 around the winding tube 18. After winding, the winding tube 18 can be tightened.

[0056] It should be noted that the clamping force of the through slot 27 of the above structure is greater than the friction force of the winding tube 18 , and the elastic force of the first support sheet 11 is less than the friction force of the winding tube 18 .

[0057] The present application also provides a method for using a road construction asphalt adhesion testing device, comprising the following steps:

[0058] S1. First, insert the rope near the second guide block 21 into the wire groove 24, and then pinch the first guide block 14 and pull it downward;

[0059] S2, then put the stone into the locking sleeve 20, then loosen the first guide block 14, and tighten the locking sleeve 20 to fix the aggregate particles;

[0060] S3. After the test, the extrusion plate 22 near the outer side of the second expansion piece 25 is pressed, and the rope 10 in the fixing ring 26 is cut off. At the same time, the first expansion piece 23 is unfolded outward, so that the rope 10 stuck in the wire groove 24 falls off, thereby removing the contaminated rope segment.

[0061] S4, when operating again, insert the rope close to the second guide block 21 into the wire groove 24 again and continue the above operation.

[0062] The working principle of the technical solution provided by the present invention is as follows: when used for the first time, the rope 10 is placed close to the guide wheel 15, and then passes through the first guide block 14 and the second guide block 21 in sequence, and then passes through the fixing ring 26 and is stuck in the wire groove 24, and then the rope 10 is pulled outward near the bottom end of the suspension rod 8 to form a locking sleeve 20, and then the aggregate particles are placed in the locking sleeve 20, and then the position of the winding tube 18 is rotated to tighten the rope 10 and drive the locking sleeve 20 to fix the aggregate particles, and the winding tube 18 is continued to be rotated to make the first support piece 11 inclined.

[0063] After the test, the second expansion piece 25 is compressed by pressing the extrusion plate 22 close to the outside of the second expansion piece 25. At the same time, the second expansion piece 25 drives a pair of blades 28 to cut inward, so that the rope 10 in the fixing ring 26 is cut off. Since the pair of extrusion plates 22 are both made of hard material, when the extrusion plate 22 close to the outside of the second expansion piece 25 is pressed, the extrusion plate 22 will rotate a certain distance with the fixing ring 26 as the fulcrum, so that the first expansion piece 23 is expanded outward. At this time, the wire groove 24 in the first expansion piece 23 is enlarged, so that the rope 10 stuck in the wire groove 24 falls off, thereby removing the contaminated rope segment.

[0064] When using it again, first use the above structure to cut off the contaminated rope segment, then insert the rope close to the second guide block 21 into the wire groove 24, then pinch the first guide block 14, the first guide block 14 is squeezed inward and clamps the rope 10, and at the same time pulls the rope 10 downward. At this time, the lower end of the rope 10 gradually grows to form a locking sleeve 20, and the upper end of the rope 10 drives the first support piece 11 to an inclined state. After putting the aggregate particles into the locking sleeve 20, loosen the first guide block 14, and the first support piece 11 drives the rope 10 to reset and tighten the locking sleeve 20, so that the aggregate particles can be fixed.

[0065] The present invention covers any substitution, modification, equivalent method and scheme made on the essence and scope of the present invention. In order to make the public have a thorough understanding of the present invention, specific details are described in detail in the following preferred embodiments of the present invention, but those skilled in the art can fully understand the present invention without the description of these details. In addition, in order to avoid unnecessary confusion about the essence of the present invention, well-known methods, processes, procedures, components and circuits are not described in detail.

[0066] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A road construction asphalt adhesion testing device, characterized in that: It comprises a test equipment body and a landing gear, and a beaker arranged on the test equipment body, the landing gear is used to lift aggregate particles wrapped with asphalt, the aggregate particles extend into the beaker filled with distilled water, and a suspension rod is arranged at one end of the landing gear; Also included is a clamping mechanism for clamping aggregate particles on the suspension rod, wherein the clamping mechanism is connected to the suspension rod; The clamping mechanism comprises a fixing plate detachably mounted on one end of the landing gear, a slot is provided on the surface of the fixing plate, a plug-in block is inserted and fixed in the slot, the plug-in block is fixedly connected to the top of the boom, a support frame is fixedly connected to the outer end of the plug-in block, a winding tube is movably connected to the support frame, and a coil formed by a rope is wound on the winding tube; A support component is installed in the plug-in block, one end of the support component is fixedly connected to a first guide block, and the other end of the support component is fixedly connected to a guide wheel. After the rope passes around the guide wheel, it passes through a first through hole provided on the first guide block. A second through hole is provided on the first guide block, and the suspension rod slides in the second through hole. The end of the suspension rod away from the first guide block is plugged and fixed with a second guide block, one end of the second guide block is fixedly connected with a first expansion piece, a wire groove is provided in the middle of the first expansion piece, one end of the first expansion piece away from the second guide block is fixedly connected with a pair of extrusion plates, one end of the extrusion plate away from the first expansion piece is fixedly connected with a second expansion piece, and a fixing ring is fixedly connected in the middle of the second expansion piece; The fixing ring is connected to the second expansion piece, and a through groove is provided in the fixing ring, and a pair of blades are fixedly connected to the inner walls of the extrusion plates; The rope is stuck in the wire groove after passing through the fixing ring, and the rope forms a locking sleeve near the bottom end of the suspension rod, and the bottom end of the suspension rod is fixedly connected with a top rod; Pressing the extrusion plate compresses the second expansion plate, and at the same time, the second expansion plate drives a pair of blades to cut inward, so that the rope in the fixed ring is cut off. At the same time, the extrusion plate rotates a certain distance with the fixed ring as a fulcrum, so that the first expansion plate expands outward. At this time, the wire groove in the first expansion plate increases, causing the rope stuck in the wire groove to fall off.

2. The road construction asphalt adhesion testing equipment according to claim 1, characterized in that: The push rod extends into the locking sleeve.

3. The road construction asphalt adhesion testing equipment according to claim 2, characterized in that: The supporting component includes a connecting piece, one end of the connecting piece is fixedly connected to a first supporting piece, the first supporting piece is fixedly connected to the guide wheel, the other end of the connecting piece is fixedly connected to a second supporting piece, the second supporting piece is fixedly connected to the first guide block.

4. The road construction asphalt adhesion testing equipment according to claim 3, characterized in that: The pair of blades are arranged in a staggered manner relative to each other, and the blade edges of the pair of blades are in a concave arc structure.

5. The road construction asphalt adhesion testing equipment according to claim 4, characterized in that: A plurality of relatively arranged protrusions are fixedly connected in the first through hole, and the plurality of protrusions are arranged in a staggered manner.

6. The road construction asphalt adhesion testing equipment according to claim 5, characterized in that: One end of the support frame is fixedly connected with a screw rod, the coil is sleeved on the screw rod, and one end of the screw rod away from the support frame is threadedly connected with a locking cap.

7. The road construction asphalt adhesion testing equipment according to claim 6, characterized in that: A slot is provided on the side of the winding tube, and the tail end of the rope is inserted into the slot. A limiting rod is also fixedly connected to the side of the winding tube.

8. The method for using the road construction asphalt adhesion testing equipment according to claim 7, characterized in that: The following steps are involved: S1. First insert the rope close to the second guide block into the wire groove, then pinch the first guide block and pull it down; S2, then put the stone into the locking sleeve, then loosen the first guide block, and tighten the locking sleeve to fix the aggregate particles; S3. After the test, the extrusion plate near the outer side of the second expansion piece is pressed, and the rope in the fixing ring is cut off. At the same time, the first expansion piece is unfolded outward, so that the rope stuck in the wire slot falls off, thereby removing the contaminated rope segment; S4. When operating again, insert the rope close to the second guide block into the wire groove again and continue the above operation.

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