Pavement asphalt structure layer thickness detection device

Abstract

The utility model discloses a pavement asphalt structure layer thickness detection device, which comprises a base, an insertion rod, a lifting mechanism and a cleaning assembly, a through hole is arranged at the top of the base, a mounting ring is rotatably arranged at the top of the base along the axial direction of the through hole, a support frame is fixedly arranged above the base, and the insertion rod penetrates through the through hole along the axial direction of the through hole in a sliding manner. The lifting mechanism is arranged above the base, the lifting mechanism can drive the inserting rod to move up and down, the lifting mechanism is further in transmission connection with the mounting ring through the transmission assembly, the cleaning assembly comprises a fixing rod, a mounting plate and a cleaning block, the fixing rod is transversely arranged in the mounting ring, and one end of the fixing rod is fixedly connected with the inner wall of the mounting ring; the other end of the fixing rod is rotationally connected with the side wall of one end of the mounting plate, and the cleaning block is detachably arranged on the side wall of the other end of the mounting plate. Through the arrangement, asphalt attached to the side wall of the insertion rod can be scraped off in the process of lifting the insertion rod after the thickness of the asphalt structure layer is measured, and the insertion rod is cleaned.

Description

Technical Field

[0001] The utility model belongs to the technical field of engineering detection, and in particular relates to a device for detecting the thickness of a road asphalt structural layer. Background Art

[0002] During highway construction, the thickness of asphalt needs to be measured. In actual work, a ruler is usually inserted into the asphalt structure layer after the asphalt is spread and before it solidifies, and the thickness of the asphalt structure layer is determined by reading the ruler. During the process of inserting the ruler into the asphalt pavement, the ruler is prone to tilt, resulting in inaccurate thickness measurement results.

[0003] A Chinese patent with announcement number CN220853408U discloses an asphalt paving thickness measuring device, which includes a base plate, a support plate fixedly connected to the top of the base plate, an insertion rod and an adjustment component fixedly arranged on the left side of the support plate. The above-mentioned scheme utilizes driving the adjustment component to move the insertion rod downward until the insertion rod contacts the bottom of the asphalt, and the thickness of the asphalt is accurately measured by measuring the length of the insertion rod extending into the asphalt.

[0004] Since asphalt has a certain viscosity, after the above solution detects the thickness of the asphalt structural layer and pulls out the rod, the asphalt is easy to adhere to the surface of the rod. The above solution is inconvenient to clean the rod, which affects the service life of the rod and the measurement accuracy. Utility Model Content

[0005] The utility model aims to provide a device for detecting the thickness of a road asphalt structure layer, so as to solve the problem of the inconvenience of cleaning the insertion rod in the above-mentioned solution.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A device for detecting the thickness of a road asphalt structure layer comprises a base, an insertion rod, a lifting mechanism and a cleaning component. A through hole is provided on the top of the base, and a mounting ring is provided on the top of the base for rotation along the axial direction of the through hole. A support frame is also fixedly provided above the base. The insertion rod is slidably inserted into the through hole along the axial direction of the through hole. The lifting mechanism is arranged above the base. The lifting mechanism can drive the insertion rod to move up and down. The lifting mechanism is also connected to the mounting ring through a transmission component. The cleaning component comprises a fixed rod, a mounting plate and a cleaning block. The fixed rod is arranged in the mounting ring in the transverse direction, and one end of the fixed rod is fixedly connected to the inner wall of the mounting ring, and the other end of the fixed rod is rotationally connected to the side wall of one end of the mounting plate. The cleaning block is detachably arranged on the side wall of the other end of the mounting plate, and the cleaning block can slide and abut against the side wall of the insertion rod.

[0008] The principle and effect of this technical solution:

[0009] Move the device to the position to be tested, drive the lifting mechanism to lower the rod, insert the rod into the asphalt structure layer and contact the bottom of the asphalt structure layer, measure the length of the rod inserted into the asphalt structure layer, which is the thickness of the asphalt structure layer. After the test is completed, lift the rod, and the mounting ring rotates along the axial direction of the through hole under the action of the transmission assembly, and the cleaning block rotates relative to the rod. Because the cleaning block slides and abuts against the side wall of the rod, the cleaning block scrapes off the asphalt attached to the side wall of the rod during rotation.

[0010] Through the above arrangement, when the rod is lifted after measuring the thickness of the asphalt structural layer, the cleaning component automatically cleans the rod and scrapes off the asphalt attached to the side wall of the rod, thereby solving the problem of inconvenience in cleaning the rod in the above solution.

[0011] In the utility model, the cleaning assembly also includes a telescopic rod, which is laterally arranged below the fixed rod, and one end of the telescopic rod is rotatably connected to the inner wall of the mounting ring, and the other end of the telescopic rod is rotatably connected to the side wall of one end of the mounting plate, and a compression spring is sleeved between the inner wall of the mounting ring and the mounting plate outside the telescopic rod.

[0012] The principle and effect of this technical solution:

[0013] When the side wall of the insertion rod abuts against the cleaning block, the cleaning block and the mounting plate both remain vertical. At this time, the mounting plate compresses the compression spring to make it elastic. When the spiked portion of the insertion rod moves to the height range of the cleaning block, the bottom of the cleaning block lacks support, and the compression spring applies force to the mounting plate to extend the telescopic rod until the cleaning block abuts against the spiked portion of the insertion rod.

[0014] Through the above arrangement, the cleaning block can also slide and abut against the spike portion of the insertion rod to scrape off the asphalt attached to the spike portion of the insertion rod, thereby improving the cleaning effect of the utility model.

[0015] In the utility model, the lifting mechanism includes a guide rod, a screw rod, a motor and a relay plate. The guide rod is fixedly arranged at the top of the base along the vertical direction, and the screw rod is inserted into the top of the base along the vertical rotation. One end of the relay plate is fitted on the screw rod, and the other end is slidably arranged on the guide rod. The relay plate is fixedly connected to the top of the insertion rod, the motor is fixedly arranged on the top of the support frame, and the output end of the motor is transmission-connected to the screw rod.

[0016] The principle and effect of this technical solution:

[0017] Because the guide rod limits the rotation of the relay plate, the relay plate moves up and down with the rotation of the screw rod, thereby driving the insertion rod to move up and down.

[0018] Through the above arrangement, the purpose of moving the plunger up and down is achieved.

[0019] In the utility model, the transmission assembly includes a gear and a gear ring, the gear ring is fixedly sleeved on the outer wall of the mounting ring, and the gear is fixedly sleeved on the screw and meshes with the gear ring. Through the above arrangement, the mounting ring can be driven to rotate while the insertion rod moves up and down, thereby causing the cleaning block to rotate relative to the insertion rod.

[0020] In the utility model, the side wall of the support frame is provided with a through groove, the side wall of the relay board is fixedly provided with a protrusion, the protrusion slides through the through groove, the side wall of the protrusion is fixedly provided with an indicator plate outside the support frame, and the support frame is provided with scale lines on one side close to the indicator plate.

[0021] The principle and effect of this technical solution:

[0022] When the rod first contacts the asphalt structure layer during the descent process, record the scale aligned with the indicator plate, and when the rod contacts the bottom of the asphalt structure layer, record the scale aligned with the indicator plate for the second time. The difference between the two readings is the thickness of the asphalt structure layer.

[0023] Through the above arrangement, the length of the insertion rod extending into the asphalt structural layer can be measured more intuitively, thereby improving the detection efficiency.

[0024] In the utility model, the plug rod is slidably inserted into the relay plate, a connecting plate is fixedly arranged on the top of the plug rod, and the bolt is slidably penetrated through the connecting plate and inserted into the top of the relay plate. Through the above arrangement, the plug rod can be replaced after it is damaged, thereby improving the practicality of the utility model.

[0025] In the present invention, the cleaning components are arranged in multiple groups and are arranged at intervals along the circumference of the through hole. Through the above arrangement, the cleaning effect of the present invention on the insertion rod can be enhanced. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is the axonometric drawing of the overall structure of the utility model;

[0027] Figure 2 Decomposition of some parts of the utility model Figure 1 ;

[0028] Figure 3 Decomposition of some parts of the utility model Figure 2 ;

[0029] Figure 4 Decomposition of some parts of the utility model Figure 3 . DETAILED DESCRIPTION

[0030] The present invention is further described in detail below in conjunction with the accompanying drawings and implementation examples:

[0031] The figure marks in the drawings of the specification include: 10, base; 11, through hole; 12, mounting ring; 13, support frame; 131, through groove; 132, scale line; 20, plug rod; 21, connecting plate; 211, bolt; 31, guide rod; 32, screw rod; 33, motor; 34, relay board; 341, bump; 342, indicator plate; 40, cleaning assembly; 41, fixing rod; 42, mounting plate; 43, cleaning block; 44, telescopic rod; 441, compression spring; 50, transmission assembly; 51, gear; 52, gear ring.

[0032] As attached Figure 1-4 As shown, the utility model discloses a road asphalt structure layer thickness detection device, including a base 10, a rod 20, a lifting mechanism and a cleaning assembly 40, the top of the base 10 is provided with a through hole 11, the top of the base 10 is provided with a mounting ring 12 axially rotating along the through hole 11, and a support frame 13 is fixedly provided above the base 10, the rod 20 is axially slidable and penetrates the through hole 11, the lifting mechanism is provided above the base 10, and the lifting mechanism can drive the rod 20 to move up and down, and the lifting mechanism It is also connected to the mounting ring 12 through a transmission assembly 50. The cleaning assembly 40 includes a fixing rod 41, a mounting plate 42 and a cleaning block 43. The fixing rod 41 is laterally arranged in the mounting ring 12, and one end of the fixing rod 41 is fixedly connected to the inner wall of the mounting ring 12, and the other end of the fixing rod 41 is rotatably connected to the side wall of one end of the mounting plate 42. The cleaning block 43 is detachably arranged on the side wall of the other end of the mounting plate 42, and the cleaning block 43 can slide and abut against the side wall of the insertion rod 20. The mounting plate 42 and the cleaning block 43 are connected by fastening bolts.

[0033] In this embodiment, the cleaning assembly 40 also includes a telescopic rod 44, which is laterally arranged below the fixed rod 41, and one end of the telescopic rod 44 is rotatably connected to the inner wall of the mounting ring 12, and the other end of the telescopic rod 44 is rotatably connected to the side wall of one end of the mounting plate 42, and a compression spring 441 is sleeved between the inner wall of the mounting ring 12 and the mounting plate 42 outside the telescopic rod 44.

[0034] In this embodiment, the lifting mechanism includes a guide rod 31, a screw rod 32, a motor 33 and a relay plate 34. The guide rod 31 is fixedly arranged vertically on the top of the base 10, and the screw rod 32 is inserted into the top of the base 10 for vertical rotation. One end of the relay plate 34 is fitted on the screw rod 32, and the other end is slidably arranged on the guide rod 31. The relay plate 34 is fixedly connected to the top of the insertion rod 20, and the motor 33 is fixedly arranged on the top of the support frame 13, and the output end of the motor 33 is transmission-connected to the screw rod 32.

[0035] In this embodiment, the transmission assembly 50 includes a gear 51 and a gear ring 52 . The gear ring 52 is fixedly sleeved on the outer wall of the mounting ring 12 , and the gear 51 is fixedly sleeved on the screw rod 32 and meshes with the gear ring 52 .

[0036] In this embodiment, a through groove 131 is provided on the side wall of the support frame 13, a protrusion 341 is fixedly provided on the side wall of the relay board 34, the protrusion 341 slides through the through groove 131, an indicator plate 342 is fixedly provided on the side wall of the protrusion 341 outside the support frame 13, and a scale line 132 is provided on the side of the support frame 13 close to the indicator plate 342.

[0037] In this embodiment, the insertion rod 20 is slidably inserted into the relay plate 34 , a connecting plate 21 is fixedly provided on the top of the insertion rod 20 , and the bolt 211 is slidably penetrated through the connecting plate 21 and cooperatively inserted into the top of the relay plate 34 .

[0038] In this embodiment, the cleaning components 40 are arranged in multiple groups and are spaced apart along the circumference of the through hole 11 .

[0039] The specific implementation process is as follows:

[0040] Move the device to the position to be tested, drive the lifting mechanism to lower the rod 20, insert the rod 20 into the asphalt structure layer and contact the bottom of the asphalt structure layer, measure the length of the rod 20 inserted into the asphalt structure layer, that is, the thickness of the asphalt structure layer. After the test is completed, lift the rod 20, and the mounting ring 12 rotates axially along the through hole 11 under the action of the transmission assembly 50, and the cleaning block 43 rotates relative to the rod 20. Because the cleaning block 43 slides and abuts against the side wall of the rod 20, the cleaning block 43 scrapes off the asphalt attached to the side wall of the rod 20 during the rotation process.

[0041] When the side wall of the insertion rod 20 abuts against the cleaning block 43, the cleaning block 43 and the mounting plate 42 both remain vertical. At this time, the mounting plate 42 compresses the compression spring 441 to make it elastic. When the spiked portion of the insertion rod 20 moves to within the height range of the cleaning block 43, the bottom of the cleaning block 43 lacks support, and the compression spring 441 applies force to the mounting plate 42 to extend the telescopic rod 44 until the cleaning block 43 abuts against the spiked portion of the insertion rod 20.

[0042] Since the guide rod 31 limits the rotation of the relay plate 34, the relay plate 34 moves up and down as the screw rod 32 rotates, thereby driving the insertion rod 20 to move up and down.

[0043] When the rod 20 first contacts the asphalt structure layer during the descent process, the scale aligned with the indicator plate 342 is recorded, and when the rod 20 contacts the bottom of the asphalt structure layer, the scale aligned with the indicator plate 342 is recorded for the second time. The difference between the two readings is the thickness of the asphalt structure layer.

[0044] The above is only an embodiment of the utility model, and the common knowledge such as the known specific technical scheme or characteristics in the scheme is not described in detail here. It should be pointed out that for those skilled in the art, several deformations and improvements can be made without departing from the technical scheme of the utility model, which should also be regarded as the protection scope of the utility model, and these will not affect the effect of the implementation of the utility model and the practicality of the patent. The scope of protection required by this application shall be based on the content of its claims, and the specific implementation methods and other records in the specification can be used to interpret the content of the claims.

Claims

1. A device for detecting the thickness of an asphalt structure layer of a road surface, characterized in that: include: A base, wherein a through hole is formed on the top of the base, a mounting ring is provided on the top of the base for rotation along the axial direction of the through hole, and a support frame is fixedly provided on the top of the base; An insertion rod, the insertion rod is slidably disposed in the through hole along the axial direction of the through hole; A lifting mechanism, which is arranged above the base and can drive the insertion rod to move up and down. The lifting mechanism is also connected to the mounting ring through a transmission assembly; A cleaning assembly, which includes a fixed rod, a mounting plate and a cleaning block. The fixed rod is laterally arranged in the mounting ring, and one end of the fixed rod is fixedly connected to the inner wall of the mounting ring, and the other end of the fixed rod is rotatably connected to the side wall of one end of the mounting plate. The cleaning block is detachably arranged on the side wall of the other end of the mounting plate, and the cleaning block can slide and abut against the side wall of the insertion rod.

2. The device for detecting the thickness of the asphalt structure layer of the road surface according to claim 1, characterized in that: The cleaning assembly also includes a telescopic rod, which is laterally arranged below the fixed rod, and one end of the telescopic rod is rotatably connected to the inner wall of the mounting ring, and the other end of the telescopic rod is rotatably connected to the side wall of one end of the mounting plate, and a compression spring is sleeved between the inner wall of the mounting ring and the mounting plate outside the telescopic rod.

3. The device for detecting the thickness of the asphalt structure layer of the road surface according to claim 2, characterized in that: The lifting mechanism includes a guide rod, a screw rod, a motor and a relay plate. The guide rod is fixedly arranged at the top of the base along the vertical direction. The screw rod is rotatably inserted into the top of the base along the vertical direction. One end of the relay plate is fitted on the screw rod, and the other end is slidably arranged on the guide rod. The relay plate is fixedly connected to the top of the insertion rod. The motor is fixedly arranged on the top of the support frame, and the output end of the motor is transmission-connected to the screw rod.

4. The device for detecting the thickness of the asphalt structure layer of the road surface according to claim 3, characterized in that: The transmission assembly comprises a gear and a gear ring. The gear ring is fixedly sleeved on the outer wall of the mounting ring. The gear is fixedly sleeved on the screw rod and meshes with the gear ring.

5. The device for detecting the thickness of the asphalt structure layer of the road surface according to claim 4, characterized in that: The side wall of the support frame is provided with a through slot, the side wall of the relay board is fixedly provided with a convex block, the convex block slides through the through slot, the side wall of the convex block is fixedly provided with an indicator plate outside the support frame, and a scale line is provided on one side of the support frame close to the indicator plate.

6. The device for detecting the thickness of the asphalt structure layer of the road surface according to claim 5, characterized in that: The insertion rod is slidably inserted in the relay plate, a connecting plate is fixedly arranged on the top of the insertion rod, and the bolt is slidably penetrated through the connecting plate and cooperatively inserted in the top of the relay plate.

7. The device for detecting the thickness of the asphalt structure layer of a road surface according to any one of claims 1 to 6, characterized in that: The cleaning components are arranged in multiple groups and are spaced apart along the circumference of the through hole.

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