Asphalt paving thickness measuring tool

Abstract

The utility model provides an asphalt paving thickness measuring tool, and belongs to the technical field of road pavement construction. The problems that an existing tool for measuring the asphalt paving thickness on the construction site cannot reflect the specific thickness of asphalt at a measured point in real time, a caliper is prone to being damaged outside, and the image measurement precision is poor when a supporting rod and a measuring needle are not in the same plane are solved. The device comprises a measuring rod, a sleeve and an annular transparent graduated scale, both the sleeve and the annular transparent graduated scale are slidably sleeved on the outer side of the measuring rod, the annular transparent graduated scale is arranged above the sleeve and connected with the sleeve, and the measuring rod is provided with a limiting clamp matched with scale marks of the annular transparent graduated scale. The device is mainly used for measuring the thickness of asphalt paving.

Description

Technical Field

[0001] The utility model belongs to the technical field of road pavement construction, in particular to an asphalt paving thickness measuring tool. Background Art

[0002] In road pavement construction, the thickness control of the asphalt paving surface layer is the main control item. If the asphalt thickness does not meet the requirements, the pavement structure will be unqualified.

[0003] At present, there are two main tools for measuring the thickness of asphalt paving at construction sites: one is a hand-held steel chisel insertion measuring tool disclosed by Chinese patent number CN211057569U, which is characterized by pre-adjusting the thickness measurement scale and directly checking the thickness. The disadvantage is that it cannot reflect the specific thickness of the asphalt at the measured point in real time; the other is a telescopic joint measuring tool disclosed by Chinese patent number CN219908490U, which is characterized by using the telescopic feature to measure the thickness of the asphalt paving checkpoint in real time. The disadvantage is that the caliper is easily damaged outside, and the image measurement accuracy is low when the support rod and the measuring needle are not in the same plane. Utility Model Content

[0004] In view of this, the utility model aims to propose an asphalt paving thickness measuring tool to solve the problems that the existing tools for measuring asphalt paving thickness at construction sites cannot reflect the specific thickness of the asphalt at the measured point in real time, the caliper is easily damaged outside, and the image measurement accuracy is low when the support rod and the measuring needle are not in the same plane.

[0005] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme: an asphalt paving thickness measuring tool, which includes a measuring rod, a sleeve and an annular transparent scale, the sleeve and the annular transparent scale are both slidably mounted on the outside of the measuring rod, the annular transparent scale is arranged above the sleeve and connected to the sleeve, and the measuring rod is provided with a limit card that matches the scale line of the annular transparent scale.

[0006] Furthermore, the top end of the measuring rod extends out of the top end of the sleeve.

[0007] Furthermore, the top end of the measuring rod is connected with a handle.

[0008] Furthermore, a support spring is connected between the handle and the annular transparent scale, the support spring is sleeved on the outside of the measuring rod, and two ends of the support spring are respectively connected to the handle and the annular transparent scale.

[0009] Furthermore, when the top end surface of the limit card abuts against the top of the annular transparent scale, the bottom end of the measuring rod is flush with the bottom end of the sleeve.

[0010] Furthermore, the sleeve and the annular transparent scale are connected via a connecting ring.

[0011] Furthermore, a limiting plate is arranged on the outer side of the bottom end of the sleeve.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] 1. The utility model provides an asphalt paving thickness measuring tool, which can reflect the specific thickness of the asphalt at the measured point in real time through the cooperation of the measuring rod and the sleeve, and then read the value through the cooperation of the limit card on the measuring rod and the annular transparent scale. The detection is convenient and fast during the construction process, which improves the detection efficiency, can check the thickness of the asphalt at each point in real time, and is conducive to quality control;

[0014] 2. The utility model has a simple structure, is easy to manufacture, and has a low cost; BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The accompanying drawings constituting a part of the present invention are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the accompanying drawings:

[0016] Figure 1 This is a schematic diagram of the overall structure of an asphalt paving thickness measuring tool according to the utility model;

[0017] Figure 2 This is a schematic diagram of an asphalt paving thickness measuring tool described in the utility model during use.

[0018] 1-handle, 2-support spring, 3-limit card, 4-annular transparent scale, 5-connector, 6-sleeve, 7-measuring rod, 8-limit plate. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely explain the technical solutions in the embodiments of the utility model. It should be noted that the embodiments and features in the embodiments of the utility model can be combined with each other without conflict, and the described embodiments are only part of the embodiments of the utility model, not all of the embodiments.

[0020] See also Figure 1-2The present embodiment is described as an asphalt paving thickness measuring tool, which includes a measuring rod 7, a sleeve 6 and an annular transparent scale 4, wherein the sleeve 6 and the annular transparent scale 4 are both slidably mounted on the outside of the measuring rod 7, the annular transparent scale 4 is arranged above the sleeve 6 and connected to the sleeve 6, and the measuring rod 7 is provided with a limit card 3 which matches the scale line of the annular transparent scale 4. In this embodiment, the specific thickness of the asphalt at the measured point is reflected in real time through the cooperation between the measuring rod 7 and the sleeve 6, and the reading is then taken through the cooperation between the limit card 3 on the measuring rod 7 and the annular transparent scale 4. The detection during the construction process is convenient and quick, the detection efficiency is improved, the thickness of the asphalt at each point can be checked in real time, and it is beneficial to quality control.

[0021] In this embodiment, the top end of the measuring rod 7 extends out of the top end of the sleeve 6, and the top end of the measuring rod 7 is connected to a handle 1. The setting of the handle 1 is convenient for the staff to press down the measuring rod 7 to measure the paving thickness of the asphalt.

[0022] In this embodiment, a support spring 2 is connected between the handle 1 and the annular transparent scale 4. The support spring 2 is sleeved on the outside of the measuring rod 7. The two ends of the support spring 2 are respectively connected to the handle 1 and the annular transparent scale 4. The support spring 2 is used to reset the measuring rod 7 after the measurement is completed.

[0023] When the top end surface of the limit card 3 in this embodiment abuts against the top of the annular transparent scale 4, the bottom end of the measuring rod 7 is flush with the bottom end of the sleeve 6 and is in the same plane, thereby ensuring the measurement accuracy.

[0024] In this embodiment, the sleeve 6 and the annular transparent scale 4 are connected via a connecting ring 5 , and the connecting ring 5 , the sleeve 6 and the annular transparent scale 4 are all connected by threads.

[0025] In this embodiment, a limit plate 8 is arranged on the outer side of the bottom end of the sleeve 6, and the limit plate 8 is used to limit the position of the sleeve 6 to ensure that the position of the sleeve 6 remains unchanged during the process of pressing the measuring rod 7 downward.

[0026] When using this embodiment, the device is placed on the point to be measured, and the limit plate 8 at the bottom of the sleeve 6 is fitted and fixed to the surface of the point to be measured. Then, the sleeve 6 is held with one hand, and the handle 1 is pressed down with the other hand until the bottom of the measuring rod 7 touches the bottom of the asphalt paving. The value on the annular transparent scale 4 where the limit card 3 on the measuring rod 7 is located is observed and the reading is recorded. After the measurement is completed, the handle 1 is slowly released, and the handle 1 rises under the action of the support spring 2 until the measuring rod 7 is reset and the device is taken away.

[0027] The embodiments of the utility model disclosed above are only used to help explain the utility model. The embodiments do not describe all the details in detail, nor do they limit the utility model to the specific implementation methods described. According to the content of this specification, many modifications and changes can be made. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model.

Claims

1. An asphalt paving thickness measurement tool, characterized by: The invention comprises a measuring rod (7), a sleeve (6) and an annular transparent scale (4), wherein the sleeve (6) and the annular transparent scale (4) are both slidably sleeved on the outer side of the measuring rod (7), the annular transparent scale (4) is arranged above the sleeve (6) and connected to the sleeve (6), and a limit card (3) matching the scale line of the annular transparent scale (4) is arranged on the measuring rod (7).

2. The asphalt paving thickness measuring tool according to claim 1, characterized in that: The top end of the measuring rod (7) extends out of the top end of the sleeve (6).

3. The asphalt paving thickness measuring tool according to claim 2, characterized in that: The top end of the measuring rod (7) is connected to a handle (1).

4. The asphalt paving thickness measuring tool according to claim 3, characterized in that: A support spring (2) is connected between the handle (1) and the annular transparent scale (4); the support spring (2) is sleeved on the outside of the measuring rod (7); and the two ends of the support spring (2) are respectively connected to the handle (1) and the annular transparent scale (4).

5. The asphalt paving thickness measuring tool according to claim 1, characterized in that: When the top end surface of the limit card (3) abuts against the top of the annular transparent scale (4), the bottom end of the measuring rod (7) is flush with the bottom end of the sleeve (6).

6. The asphalt paving thickness measuring tool according to claim 1, characterized in that: The sleeve (6) is connected to the annular transparent scale (4) via a connecting ring (5).

7. The asphalt paving thickness measuring tool according to claim 1, characterized in that: A limiting plate (8) is arranged on the outer side of the bottom end of the sleeve (6).

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