CN211784772U - Height measuring instrument for asphalt mixture test piece - Google Patents
Height measuring instrument for asphalt mixture test piece Download PDFInfo
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- CN211784772U CN211784772U CN201921524184.6U CN201921524184U CN211784772U CN 211784772 U CN211784772 U CN 211784772U CN 201921524184 U CN201921524184 U CN 201921524184U CN 211784772 U CN211784772 U CN 211784772U
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Abstract
The utility model provides a height measuring instrument for an asphalt mixture test piece, which comprises a measuring platform, a vernier caliper and a test piece measuring head; the measuring platform comprises a standard test piece measuring platform and a large test piece measuring platform which are arranged up and down; the vernier caliper is vertically arranged on the side edge of the measuring platform, and a measuring rod is arranged on the surface of the vernier caliper in a vertical sliding mode; the test piece measuring head comprises a standard test piece measuring head and a large test piece measuring head; and the standard test piece measuring head and the large test piece measuring head are vertically and downwards arranged at the bottom of the measuring rod from far to near from the vernier caliper respectively. The utility model has novel structure, adopts the design of double measuring heads to meet the measuring requirements of test pieces with different specifications, and has simple operation; meanwhile, the use method of the height measuring instrument is provided, the height of the test mold does not need to be measured, only the height of one surface needs to be measured, and the measuring accuracy is guaranteed on the basis of ensuring convenient operation.
Description
Technical Field
The invention belongs to the field of measuring instruments, and particularly relates to a height measuring instrument for an asphalt mixture test piece.
Background
The asphalt mixture test piece is prepared by loading the stirred asphalt mixture into a test mold according to a specified method, compacting and molding by using a Marshall compaction tester and is used for testing the physical and mechanical indexes of the asphalt mixture. The height of a test piece in a test mold needs to be measured immediately after compaction forming, the height needs to meet the specified requirement, the surface of the test piece at the moment is lower than the test mold by about 10-15 mm, and a vernier caliper is 10mm away from the edge of the test mold during measurement, the height of 4 directions of cross symmetry of one surface needs to be measured firstly, and then the height of 4 directions of cross symmetry of the other surface is measured, so that the measurement is not simple and convenient, the error is large, the depth gauge at the end part of the vernier caliper is pointed, and sometimes, the part of a gap on the surface of the test piece can be inserted, and the accuracy of the height measurement is influenced.
Therefore, it is an urgent problem for those skilled in the art to develop a tool for measuring the height of the test mold simply and accurately.
Disclosure of Invention
In order to solve the problems, the invention discloses a height measuring instrument for an asphalt mixture test piece and a using method thereof.
In order to achieve the purpose, the invention provides the following technical scheme:
a height measuring instrument for an asphalt mixture test piece comprises a measuring platform, a vernier caliper and a test piece measuring head; the measuring platform comprises a standard test piece measuring platform and a large test piece measuring platform which are arranged up and down; the vernier caliper is vertically arranged on the side edge of the large-scale test piece measuring platform, and a measuring rod is arranged on the surface of the vernier caliper in a vertical sliding mode; the test piece measuring head comprises a standard test piece measuring head and a large test piece measuring head; and the standard test piece measuring head and the large test piece measuring head are vertically and downwards arranged at the bottom of the measuring rod from far to near from the vernier caliper respectively. Furthermore, a circle of standard test piece measuring groove is formed in the surface of the standard test piece measuring platform inwards, and the standard test piece measuring platform is stacked in the center of the surface of the large test piece measuring platform.
Further, the positions of the standard test piece measuring head and the large test piece measuring head on the side close to the vernier caliper respectively correspond to the inner groove wall of the standard test piece measuring groove and the outer side surface of the standard test piece measuring platform.
Further, the bottom of the vernier caliper is vertically arranged on the side edge of the large test piece measuring platform through a fastening screw; the measuring rod is horizontally arranged on the vernier caliper through an adjusting screw. Further, a measuring sleeve is slidably mounted on the surface of the vernier caliper; one side of the measuring sleeve is matched and installed with the vernier caliper through an adjusting screw, and the other side of the measuring sleeve is horizontally provided with a measuring rod and a micro-motion device. Further, the micro-motion device is a spiral micro-motion device. Further, the use method of the height measuring instrument is as follows:
(a) loosening the adjusting screw to enable the standard test piece measuring head and the large test piece measuring head to respectively contact the standard test piece measuring platform and the large test piece measuring platform, and resetting the value of the vernier caliper;
(b) moving the measuring rod upwards, and placing a test mold containing a test piece on a corresponding standard test piece measuring platform or a large test piece measuring platform;
(c) moving the measuring rod downwards until the standard test piece measuring head or the large test piece measuring head approaches to the test mold, screwing the adjusting screw, finely adjusting the measuring rod through a micro-adjusting device to enable the standard test piece measuring head or the large test piece measuring head to be in full contact with the test mold, measuring the heights of 4 directions of the test piece top surface in the test mold in a cross symmetry mode, and recording numerical values;
(d) and (c) averaging the 4 values obtained in the step (c) to obtain the height of the test piece.
The invention provides a height measuring instrument for an asphalt mixture test piece, which is novel in structure, simple to operate and adopts a double-measuring-head design so as to meet the measuring requirements of test pieces with different specifications; meanwhile, the use method of the height measuring instrument is provided, the height of the test mold does not need to be measured, only the height of one surface needs to be measured, and the measuring accuracy is guaranteed on the basis of ensuring convenient operation.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the structure of the present invention in use.
List of reference numerals: the device comprises a standard test piece measuring platform 11, a large test piece measuring platform 12, a vernier caliper 2, a standard test piece measuring head 31, a large test piece measuring head 32, a measuring rod 4, a fastening screw 5, an adjusting screw 6, a measuring sleeve 7 and a micro-motion device 8.
Detailed Description
The technical solutions provided by the present invention will be described in detail below with reference to specific examples, and it should be understood that the following specific embodiments are only illustrative of the present invention and are not intended to limit the scope of the present invention.
As shown in fig. 1, which is a schematic structural diagram of the present invention, the present invention provides a height measuring instrument for an asphalt mixture test piece, which includes a measuring platform, a vernier caliper 2 and a test piece measuring head.
The measuring platform comprises a standard test piece measuring platform 11 and a large test piece measuring platform 12 which are arranged up and down, a circle of standard test piece measuring groove is formed in the surface of the standard test piece measuring platform 11 inwards, and the standard test piece measuring platform 11 is stacked in the center of the surface of the large test piece measuring platform 12.
The bottom of the vernier caliper 2 is vertically arranged on the side edge of a large test piece measuring platform 12 through a fastening screw 5, a measuring rod 4 is arranged on the surface of the vernier caliper 2 in a vertical sliding mode, and a measuring sleeve 7 is arranged on the surface of the vernier caliper 2 in a sliding mode; one side of the measuring sleeve 7 is matched and installed with the vernier caliper 2 through an adjusting screw 6, the other side of the measuring sleeve is horizontally provided with a measuring rod 4 and a micro-motion device 8, and the micro-motion device 8 is a spiral micro-motion device.
The test piece measuring head comprises a standard test piece measuring head 31 and a large test piece measuring head 32; the standard test piece measuring head 31 and the large test piece measuring head 32 are respectively vertically and downwardly installed at the bottom of the measuring rod 4 from far to near from the vernier caliper 2, and the positions of the standard test piece measuring head 31 and the large test piece measuring head 32 close to one side of the vernier caliper 2 respectively correspond to the inner groove wall of the standard test piece measuring groove and the outer side surface of the standard test piece measuring platform 11.
As shown in fig. 2, the device is used as follows:
(a) loosening the adjusting screw 6 to enable the standard test piece measuring head 31 and the large test piece measuring head 32 to respectively contact the standard test piece measuring platform 11 and the large test piece measuring platform 12, and resetting the numerical value of the vernier caliper 2;
(b) moving the measuring rod 4 upwards, and placing a test mold containing a test piece on a corresponding standard test piece measuring platform 11 or a large test piece measuring platform 12;
(c) moving the measuring rod 4 downwards until the standard test piece measuring head 31 or the large test piece measuring head 32 approaches to a test mold, screwing the adjusting screw 6, finely adjusting the measuring rod 4 through the micro-adjusting device 8 to enable the standard test piece measuring head 31 or the large test piece measuring head 32 to be in complete contact with the test mold, measuring the heights of 4 directions of the test piece top surface in the test mold in a cross symmetry manner, and recording numerical values;
(d) and d, averaging the 4 values obtained in the step c to obtain the height of the test piece.
Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting the technical solutions, and those skilled in the art should understand that modifications or equivalent substitutions can be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions, and all the modifications and equivalent substitutions should be covered by the claims of the present invention.
Claims (6)
1. The utility model provides a height measurement appearance of bituminous mixture test piece which characterized in that: comprises a measuring platform, a vernier caliper (2) and a test piece measuring head; the measuring platform comprises a standard test piece measuring platform (11) and a large test piece measuring platform (12) which are arranged up and down; the vernier caliper (2) is vertically arranged on the side edge of the large-scale test piece measuring platform (12), and the surface of the vernier caliper (2) is vertically and slidably provided with a measuring rod (4); the test piece measuring head comprises a standard test piece measuring head (31) and a large test piece measuring head (32); the standard test piece measuring head (31) and the large test piece measuring head (32) are vertically and downwards arranged at the bottom of the measuring rod (4) from far to near from the vernier caliper (2).
2. The height measuring instrument for the asphalt mixture test piece according to claim 1, characterized in that: the surface of the standard test piece measuring platform (11) is inwards provided with a circle of standard test piece measuring groove, and the standard test piece measuring platform (11) is stacked in the center of the surface of the large test piece measuring platform (12).
3. The height measuring instrument for the asphalt mixture test piece according to claim 2, characterized in that: the positions of the standard test piece measuring head (31) and the large test piece measuring head (32) close to one side of the vernier caliper (2) correspond to the inner groove wall of the standard test piece measuring groove and the outer side surface of the standard test piece measuring platform (11) respectively.
4. The height measuring instrument for the asphalt mixture test piece according to claim 3, characterized in that: the bottom of the vernier caliper (2) is vertically arranged on the side edge of the large test piece measuring platform (12) through a fastening screw (5); the measuring rod (4) is horizontally arranged on the vernier caliper (2) through an adjusting screw (6).
5. The height measuring instrument for the asphalt mixture test piece according to claim 4, characterized in that: a measuring sleeve (7) is slidably mounted on the surface of the vernier caliper (2); one side of the measuring sleeve (7) is matched with the vernier caliper (2) through an adjusting screw (6), and the other side of the measuring sleeve is horizontally provided with a measuring rod (4) and a micro-motion device (8).
6. The height measuring instrument for the asphalt mixture test piece according to claim 5, characterized in that: the micro-motion device (8) is a spiral micro-motion device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921524184.6U CN211784772U (en) | 2019-09-14 | 2019-09-14 | Height measuring instrument for asphalt mixture test piece |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921524184.6U CN211784772U (en) | 2019-09-14 | 2019-09-14 | Height measuring instrument for asphalt mixture test piece |
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| Publication Number | Publication Date |
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| CN211784772U true CN211784772U (en) | 2020-10-27 |
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| CN201921524184.6U Active CN211784772U (en) | 2019-09-14 | 2019-09-14 | Height measuring instrument for asphalt mixture test piece |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110530711A (en) * | 2019-09-14 | 2019-12-03 | 江苏永联精筑建设集团有限公司 | A kind of height-gauge and its application method of bitumen mixture specimen |
-
2019
- 2019-09-14 CN CN201921524184.6U patent/CN211784772U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110530711A (en) * | 2019-09-14 | 2019-12-03 | 江苏永联精筑建设集团有限公司 | A kind of height-gauge and its application method of bitumen mixture specimen |
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