CN-224216005-U - Marshall height non-demolding measuring device after full-grain-size compaction molding

Abstract

The utility model discloses a Marshall height non-demoulding measuring device after full-grain size compaction forming, which comprises a main scale, an inner measuring claw and an outer measuring claw, wherein the inner measuring claw and the outer measuring claw are oppositely arranged on two sides of the main scale, the inner measuring claw comprises an inner fixed measuring claw and an inner movable measuring claw, the outer measuring claw comprises an outer fixed measuring claw and an outer movable measuring claw, a measuring dial is slidably arranged on one end face of the main scale with scales, so that the measuring dial, the inner movable measuring claw and the outer movable measuring claw synchronously move, a paper shoveling knife is arranged on the outer side of the inner fixed measuring claw, and a hollow cup is oppositely arranged on the bottom end of the outer measuring claw. According to the utility model, the isolation paper on the surface of the test piece can be shoveled by the paper shoveling knife, and then the height of the test piece is measured by the hollow cup, so that the accuracy of the test can be ensured, and the efficiency of the test can be improved.

Inventors

• CUI YANAN
• LIU XIANG

Assignees

• 内蒙古工业大学

Dates

Publication Date

20260508

Application Date

20250715

Claims (7)

1. 1. The Marshall height non-demoulding measuring device after full-grain size compaction forming is characterized by comprising a main scale, and an inner measuring claw and an outer measuring claw which are oppositely arranged on two sides of the main scale, wherein the inner measuring claw comprises an inner fixed measuring claw and an inner movable measuring claw, the outer measuring claw comprises an outer fixed measuring claw and an outer movable measuring claw, and a measuring dial is arranged on one end face of the main scale with scales in a sliding manner, so that the measuring dial, the inner movable measuring claw and the outer movable measuring claw synchronously move; The paper shoveling knife is arranged on the outer side of the inner fixed measuring claw, and the hollow cup is arranged at the bottom end of the outer measuring claw.
2. 2. The device for measuring the height of Marshall after full-grain compaction forming, which is characterized in that the inner side surface of the outer measuring claw is provided with a linear sliding rail, a sliding base block is arranged on the linear sliding rail, a connecting column is arranged on the sliding base block, the bottom end of the connecting column is connected with an arc-shaped block, and the arc-shaped block is connected with the hollow cup.
3. 3. The device for measuring the Marshall height after full-grain compaction molding without demolding according to claim 2, wherein a numerical display screen is arranged in the middle of the measuring dial plate, and a control button is arranged below the numerical display screen.
4. 4. The device for measuring Marshall height after full-grain compaction according to claim 3, wherein a roller is arranged between the measuring dial and the main scale.
5. 5. The device for measuring Marshall height after full-grain compaction forming without demoulding according to claim 4, wherein the top end of the measuring dial is connected with the inner movable measuring jaw through a fastening screw.
6. 6. The device for measuring the Marshall height after full-grain compaction without demolding according to claim 5, wherein the height of the paper shoveling knife is 2-3 cm.
7. 7. The device for measuring Marshall height after full-grain compaction without demolding according to claim 6, wherein the height of the hollow cup is 2cm and the diameter is 3cm.

Description

Marshall height non-demolding measuring device after full-grain-size compaction molding Technical Field The utility model relates to the technical field of pavement material detection equipment, in particular to a Marshall height non-demoulding measuring device after full-grain-size compaction molding. Background The height of the test piece is required to be measured in the process of carrying out Marshall molding in a laboratory to evaluate whether the test piece meets the national standard, and the height of the molded test piece is required to be controlled to be 63.5mm plus or minus 1.3mm according to the standard requirement. The marshall test piece just formed cannot be directly demoulded to measure the height because of the high temperature and incomplete bonding together. The Marshall test mould height is 81mm so that a height difference exists between the Marshall test mould height and a test piece required by national standards. When the mold is not removed, the test piece is completely embedded into the mold, and accurate measurement cannot be performed directly by using a vernier caliper. The existing equipment is characterized in that a part of the existing equipment is a steel ruler, after the Marshall test piece is formed, the steel ruler is used for measuring the depths of two sides of the die respectively, and the original height of the die is subtracted by the depth to obtain the height of the test piece. However, the height measured by the method often has a certain error, which leads to erroneous judgment of the height of the test piece in the test process, so that the test piece is scrapped. Disclosure of utility model In order to overcome the defects in the prior art, the utility model provides a Marshall height non-demoulding measuring device after full-grain size compaction forming. In order to achieve the above purpose, the utility model provides a Marshall height non-demoulding measuring device after full-grain compaction forming, which comprises a main scale, and an inner measuring claw and an outer measuring claw which are oppositely arranged at two sides of the main scale, wherein the inner measuring claw comprises an inner fixed measuring claw and an inner movable measuring claw, the outer measuring claw comprises an outer fixed measuring claw and an outer movable measuring claw, and a measuring dial is arranged on one end face of the main scale with scales in a sliding way, so that the measuring dial, the inner movable measuring claw and the outer movable measuring claw synchronously move; The paper shoveling knife is arranged on the outer side of the inner fixed measuring claw, and a hollow cup is arranged at the bottom end of the outer measuring claw. Preferably, the inner side surface of the outer measuring claw is provided with a linear slide rail, a sliding base block is arranged on the linear slide rail, a connecting column is arranged on the sliding base block, the bottom end of the connecting column is connected with an arc-shaped block, and the arc-shaped block is connected with the hollow cup. Preferably, a numerical display screen is arranged in the middle of the measurement dial plate, and a control button is arranged below the numerical display screen. Preferably, a roller is arranged between the measuring dial plate and the main scale. Preferably, the top end of the measuring dial plate is connected with the inner movable measuring jaw through a fastening screw. Preferably, the height of the paper shoveling knife is 2-3 cm. Preferably, the height of the hollow cup is 2cm, and the diameter is 3cm. Compared with the prior art, the utility model has the beneficial effects that: According to the utility model, the isolation paper on the surface of the test piece can be shoveled by the paper shoveling knife, and then the height of the test piece is measured by the hollow cup, so that the accuracy of the test can be ensured, and the efficiency of the test can be improved. Drawings FIG. 1 is a schematic plan view of a measuring device of the present utility model; FIG. 2 is a partial schematic view of an outer measuring jaw of the present utility model; FIG. 3 is an enlarged view of a portion of an internal fixed jaw of the present utility model. Detailed Description For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model. I