Asphalt mixture paving thickness detection device

Abstract

The utility model provides an asphalt mixture paving thickness detection device which comprises an insertion rod, a sliding cylinder slidably sleeved on the outer side of the insertion rod, connecting rods arranged at the bottom of the sliding cylinder in a circumferential array, a bottom ring sleeved on the outer side of the insertion rod below the sliding cylinder, the top of the bottom ring fixedly connected with the bottom ends of the connecting rods, and a graduated scale arranged on one side of the insertion rod. The scales of the graduated scale are sequentially increased from bottom to top; when the bottom edge of the sliding cylinder corresponds to the zero scale of the graduated scale, the bottom of the bottom ring is flush with the bottom end of the insertion rod. According to the utility model, the insertion rod is vertical to the road surface and is inserted into the asphalt paving layer, the top of the asphalt paving layer pushes the bottom ring to move upwards, the sliding cylinder is pushed to move upwards through the connecting rod in the process that the bottom ring moves upwards, the scale value corresponding to the bottom edge of the sliding cylinder is observed as the thickness value of the paving layer, the thickness of the paving layer can be directly obtained without measurement, and the use is convenient; the paving thickness can be continuously and accurately measured, and the detection efficiency is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of asphalt pavement detection, and particularly relates to a device for detecting the paving thickness of asphalt mixture. Background Art

[0002] In road engineering, the asphalt surface course is the structural layer that directly bears the repeated wheel loads and natural influences, and is the main functional layer of the road structure. The paving thickness of asphalt is an important index for quality control. The thickness of the asphalt surface course is usually not less than 15 cm, generally about 20 cm.

[0003] The conventional method for detecting the paving thickness of the asphalt surface course is to use a slender rod-shaped object to insert into the paved asphalt surface course, then make a mark at the top surface of the asphalt surface course by hand or a steel ruler, and then take it out for measurement. The speed is slow, and it is easy to get scalded, and the operation error is large.

[0004] In the prior art, the Chinese utility model patent document with the authorization publication number of CN211057569U discloses a rapid detection tool for the thickness during the paving process of asphalt concrete, which can only detect whether the paving thickness meets the design requirements, but cannot specifically detect its thickness, and cannot be adjusted according to the specific thickness deviation; the Chinese utility model patent document with the authorization publication number of CN217127941U discloses an adjustable device for detecting the paving thickness of asphalt, which can measure the paving thickness more accurately. However, during the measurement process, asphalt will adhere to the external thread of the adjuster. After the detection, it needs to be cleaned before the next detection. Otherwise, the asphalt in the external thread will cause jamming between the compression nut and the external thread, affecting the adjustment of the compression nut. It takes a lot of time to clean the external thread after each detection, and it cannot be continuously detected and used, affecting the detection efficiency.

[0005] Therefore, it is necessary to design a device for detecting the paving thickness of asphalt mixture that can continuously and accurately measure the paving thickness and improve the detection efficiency to solve the current technical problems. Summary of the Invention

[0006] Aiming at the deficiencies in the prior art, the utility model provides a device for detecting the paving thickness of asphalt mixture that can continuously and accurately measure the paving thickness and improve the detection efficiency.

[0007] The technical solution of the present utility model is: an asphalt mixture paving thickness detection device, including an insertion rod, a sliding cylinder is sleeved on the outer side of the insertion rod, connecting rods are arranged in a circumferential array at the bottom of the sliding cylinder, a bottom ring is sleeved on the outer side of the insertion rod below the sliding cylinder, the top of the bottom ring is fixedly connected to the bottom ends of the connecting rods, a scale is arranged on one side of the insertion rod, and the scale values increase sequentially from bottom to top; when the bottom edge of the sliding cylinder corresponds to the "0" scale of the scale, the bottom of the bottom ring is flush with the bottom end of the insertion rod.

[0008] A locking assembly is arranged at the top end of the sliding cylinder, and the locking assembly is used to lock or release the sliding cylinder and the insertion rod.

[0009] The locking part has an external threaded tube slidably sleeved on the outer side of the insertion rod, the bottom end of the external threaded tube is fixedly connected to the top of the sliding cylinder, notches are arranged in a circumferential array on the external threaded tube, and a locking nut is assembled at the upper end of the external threaded tube.

[0010] A handle is arranged on the outer side of the locking nut.

[0011] The insertion rod is a φ20mm galvanized steel pipe, the upper end of the insertion rod is bent 90° to form a handle, and the bottom end of the insertion rod has a conical head.

[0012] Slats are arranged in a circumferential array on the outer side of the bottom ring.

[0013] Four slats are arranged in a circumferential array on the outer side of the bottom ring.

[0014] Four of the connecting rods are arranged in a circumferential array at the bottom of the sliding cylinder, and a gap is left between the connecting rods and the insertion rod.

[0015] The beneficial effects of the present utility model are:

[0016] (1) In the present utility model, the insertion rod is vertically inserted into the asphalt paving layer, the top of the asphalt paving layer pushes the bottom ring to move upward, and during the upward movement of the bottom ring, the sliding cylinder is pushed to move upward through the connecting rod. The scale value corresponding to the bottom edge of the sliding cylinder is the thickness value of the paving layer, and the paving layer thickness can be directly obtained without further measurement, which is convenient to use;

[0017] (2) After the measurement is completed, the insertion rod is directly pulled out of the paving layer, and the insertion rod can be directly inserted into the next measurement point for detection, which can continuously and accurately measure the paving thickness and improve the detection efficiency. Description of the Drawings

[0018] Figure 1 It is one of the structural schematic diagrams of the asphalt mixture paving thickness detection device in the present utility model.

[0019] Figure 2This is the second schematic structural diagram of the asphalt mixture paving thickness detection device in the present utility model.

[0020] Figure 3 It is Figure 2 a partial enlarged view of part A in Detailed implementation manners

[0021] Now, various exemplary embodiments of the present utility model will be described in detail with reference to the accompanying drawings. The description of the exemplary embodiments is merely illustrative and does not constitute any limitation to the present utility model and its application or use. The present utility model can be implemented in many different forms and is not limited to the embodiments described herein. These embodiments are provided to make the present utility model thorough and complete, and to fully convey the scope of the present utility model to those skilled in the art. It should be noted that: unless otherwise specifically stated, the relative arrangements of components and steps, the components of materials, numerical expressions and values set forth in these embodiments should be construed as merely exemplary and not as limitations.

[0022] The "first", "second" and similar terms used in the present utility model do not denote any order, quantity or importance, but are only used to distinguish different parts. Words such as "including" or "comprising" mean that the elements before this word cover the elements listed after this word, and do not exclude the possibility of also covering other elements. "Upper", "lower", "left", "right", etc. are only used to represent relative positional relationships, and when the absolute position of the object being described changes, the relative positional relationship may also change accordingly.

[0023] As Figure 1 and 2 shown, the asphalt mixture paving thickness detection device includes an insertion rod 1. A sliding cylinder 2 is sleeved on the outer side of the insertion rod 1. Connecting rods 3 are arranged in a circumferential array at the bottom of the sliding cylinder 2. A bottom ring 4 is sleeved on the outer side of the insertion rod 1 below the sliding cylinder 2. The top of the bottom ring 4 is fixedly connected to the bottom end of the connecting rod 3. A scale 12 is arranged on one side of the insertion rod 1, and the scale of the scale 12 increases sequentially from bottom to top; when the bottom edge of the sliding cylinder 2 corresponds to the "0" scale of the scale, the bottom of the bottom ring 4 is flush with the bottom end of the insertion rod 1; in this embodiment, the insertion rod 1 is vertically inserted into the asphalt paving layer. The top of the asphalt paving layer pushes the bottom ring 4 to move upward. During the upward movement of the bottom ring 4, the sliding cylinder 2 is pushed to move upward through the connecting rod 3. Observing the scale value corresponding to the bottom edge of the sliding cylinder 2 is the thickness value of the paving layer. There is no need to measure again to directly obtain the thickness of the paving layer, which is convenient to use; after the measurement is completed, the insertion rod 1 is directly pulled out of the paving layer, and it can be directly inserted into the next measurement point for detection, which can continuously and accurately measure the paving thickness and improve the detection efficiency.

[0024] In some embodiments, to facilitate pulling out the insertion rod 1 from the paving layer for reading without the need for the inspector to bend down for reading, a locking assembly 6 is provided at the top end of the sliding cylinder 2. The locking assembly 6 is used to lock or release the sliding cylinder 2 and the insertion rod 1. The insertion rod 1 is vertically inserted into the asphalt paving layer. After the sliding cylinder 2 is lifted, the insertion rod 1 and the sliding cylinder 2 are locked by the locking assembly 6, and then the insertion rod 1 can be pulled out from the paving layer for reading without the need for the inspector to bend down for reading.

[0025] In some embodiments, as Figure 3 shown, the locking member 6 has an external threaded tube 61 slidably sleeved outside the insertion rod 1. The bottom end of the external threaded tube 61 is fixedly connected to the top of the sliding cylinder 2. The external threaded tube 61 is circumferentially provided with notches 62. A locking nut 63 is assembled at the upper end of the external threaded tube 61. When the locking nut 63 is tightened on the external threaded tube 61, the external threaded tube 61 will tighten inward and clamp and fix on the outside of the insertion rod 1 to achieve the locking between the sliding cylinder 2 and the insertion rod 1. When the locking nut 63 is loosened on the external threaded tube 61, the tightened external threaded tube 61 will reset outward to release the insertion rod 1, achieving the release between the sliding cylinder 2 and the insertion rod 1. At this time, the sliding cylinder 2 can slide along the insertion rod 1. Further, the internal threaded hole in the locking nut 63 has a certain taper. Through the setting of this taper, the external threaded tube 61 can be tightened inward when the locking nut 63 is tightened.

[0026] To facilitate turning the locking nut, in some embodiments, a handle 64 is provided on the outside of the locking nut 63. The handle 64 is fixedly connected to the outside of the locking nut 63. By the handle 64, it is convenient to turn the locking nut 63 to lock or release the sliding cylinder 2 and the insertion rod 1.

[0027] In some embodiments, the insertion rod 1 is a φ20mm galvanized steel pipe. The upper end of the insertion rod 1 has a bend of 90° to form a handle 11. Through the handle 11, it is convenient for the inspector to hold the insertion rod 1. The bottom end of the insertion rod 1 has a tapered head 13. Through the tapered head 13, it is convenient to insert the insertion rod 1 into the paving layer.

[0028] In some embodiments, the outside of the bottom ring 4 is circumferentially provided with slats 5. The arrangement of the slats 5 can increase the contact area between the bottom ring 4 and the paving layer, disperse the force, and prevent the bottom ring 4 from being inserted into the paving layer. Specifically, the outside of the bottom ring 4 is circumferentially provided with four slats 5. One end of the slats 5 is integrally connected to the bottom ring 4.

[0029] In some embodiments, four connecting rods 3 are arranged in a circumferential array at the bottom of the sliding cylinder 2. There is a gap between the connecting rod 3 and the insertion rod 1. The wall thickness of the sliding cylinder 2 is 1-1.5 cm. The connecting rods 3 are arranged in a circumferential array on the outer side of the bottom end of the sliding cylinder 2. There is a gap of 0.5-0.8 cm between the connecting rod 3 and the insertion rod 1. When the insertion rod 1 is inserted into the paving layer, asphalt will inevitably adhere to its surface. This gap provides a clearance for the asphalt adhering to the outer side of the insertion rod 1, so that it does not need to be cleaned during continuous detection and does not affect the detection. After all the detections are completed, the asphalt adhering to the outer side of the insertion rod 1 can be cleaned up.

[0030] So far, the embodiments of the present invention have been described in detail. In order to avoid obscuring the concept of the present invention, some details well known in the art have not been described. Those skilled in the art can clearly understand how to implement the technical solutions disclosed herein based on the above description.

[0031] The above-described embodiments only represent some embodiments of the present invention. The description is relatively specific and detailed, but it should not be construed as a limitation on the scope of the utility model patent. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several modifications and improvements can be made, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the utility model patent shall be subject to the appended claims.

Claims

1. A device for detecting the thickness of asphalt mixture paving, characterized in that: It includes an insertion rod, a sliding cylinder is slidably sleeved on the outer side of the insertion rod, a connecting rod is arranged in a circular array at the bottom of the sliding cylinder, a bottom ring is sleeved on the outer side of the insertion rod below the sliding cylinder, the top of the bottom ring is fixedly connected to the bottom end of the connecting rod, a scale is arranged on one side of the insertion rod, and the scale increases from bottom to top; when the bottom edge of the sliding cylinder corresponds to the "0" scale of the scale, the bottom of the bottom ring is flush with the bottom end of the insertion rod.

2. The asphalt mixture paving thickness detection device according to claim 1 is characterized in that: A locking assembly is provided at the top end of the slide cylinder, and the locking assembly is used to lock or release the slide cylinder and the insertion rod.

3. The asphalt mixture paving thickness detection device according to claim 2 is characterized in that: The locking component comprises an external threaded tube which is slidably mounted on the outside of the insertion rod, the bottom end of the external threaded tube is fixedly connected to the top of the slide cylinder, the external threaded tube has notches in a circumferential array, and the upper end of the external threaded tube is equipped with a locking nut.

4. The asphalt mixture paving thickness detection device according to claim 3 is characterized in that: A handle is arranged on the outer side of the locking nut.

5. The asphalt mixture paving thickness detection device according to claim 1, characterized in that: The insertion rod is a 20mm galvanized steel pipe, the upper end of the insertion rod is bent 90 degrees to form a handle, and the bottom end of the insertion rod is provided with a cone head.

6. The asphalt mixture paving thickness detection device according to claim 1, characterized in that: The outer side of the bottom ring has laths in a circumferential array.

7. The asphalt mixture paving thickness detection device according to claim 6, characterized in that: The outer side of the bottom ring has four strips arranged in a circumferential array.

8. The asphalt mixture paving thickness detection device according to claim 1, characterized in that: The bottom of the slide cylinder has four connecting rods arranged in a circular array, and a gap is left between the connecting rods and the insertion rods.

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