Test piece height measuring device
By setting distance measuring sensors at both ends of the placement groove of the Marshall specimen height measurement device, fast and accurate measurement of the specimen height is achieved, solving the problem of time-consuming and labor-intensive and inaccurate results of traditional methods, and improving measurement efficiency and accuracy.
Patent Information
- Application Number
- CN202421470788.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-26
- Publication Date
- 2025-04-01
- Estimated Expiration
- 2034-06-26
AI Technical Summary
The traditional Marshall specimen height measurement method requires manual operation, which is time-consuming and labor-intensive, and is susceptible to operator skills and subjective factors, resulting in inaccurate measurement results.
A test piece height measurement device is designed. By setting a distance measuring sensor at both ends of the placement groove, the distance measuring sensor is used to measure the distance between the test piece and calculate the height of the test piece, simplifying the measurement process and improving efficiency and accuracy.
The device saves measurement time, improves work efficiency, reduces the subjectivity and technical requirements of human operation, and makes the measurement results more accurate and reliable.
Smart Images
Figure CN222704052U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of height measurement, in particular to a test piece height measuring device. Background Art
[0002] With the rapid growth of the domestic economy and the acceleration of urbanization, the demand for road infrastructure has continued to increase. In the past few decades, my country has built a large number of asphalt pavements, including urban roads, highways, rural roads, etc. my country has made continuous improvements and innovations in asphalt pavement technology, and has improved the construction quality and durability of asphalt pavements by introducing advanced technology and equipment. At the same time, my country has also actively carried out research and development of asphalt pavement materials to improve the compressive strength, durability and safety performance of the pavement.
[0003] In order to study the performance of asphalt mixture, the material is usually made into Marshall specimens. Marshall specimens are a common specimen used to evaluate the compressive strength and stability of asphalt mixtures. They play an important role in road engineering and asphalt concrete material research. By evaluating the compressive strength, structural stability and performance characteristics of the mixture, they help ensure the durability, safety and quality requirements of the road.
[0004] In the traditional Marshall specimen preparation process, the height of the specimen needs to be measured to ensure that it meets the standard requirements. At present, the operator usually uses a caliper to measure the diameter of the middle of the specimen, and uses a Marshall specimen height measuring device or a caliper to measure the height 10mm away from the edge of the specimen in four cross-symmetrical directions, accurate to 0.1mm, and the average value is used as the height of the specimen. If the height of the specimen does not meet the requirement of 63.5±1.3mm or the height difference between the two sides is greater than 2mm, the specimen should be scrapped. However, the above traditional height measurement method requires manual operation, is time-consuming and labor-intensive, and is easily affected by the operator's skills and subjective factors, resulting in inaccurate measurement results.
[0005] Therefore, it is urgent to provide a test piece height measuring device to solve the above problems existing in the prior art. Utility Model Content
[0006] The purpose of the utility model is to provide a test piece height measuring device to solve the problems existing in the above-mentioned prior art. The device can measure the height of the test piece through distance measuring sensors at both ends, thereby saving measurement time, improving work efficiency, and ensuring measurement accuracy.
[0007] To achieve the above purpose, the utility model provides the following solutions:
[0008] The utility model provides a test piece height measuring device, comprising a base platform and a distance measuring sensor, wherein a placement slot is arranged on the base platform, the placement slot is used to place a test piece, and the extension direction of the placement slot is parallel to the height direction of the test piece; the distance measuring sensors are arranged at both ends of the placement slot, and the distance measuring sensors are used to measure the distance between the test piece and the test piece.
[0009] Preferably, the placement groove is arranged on the top of the base platform, and the placement groove is an arc-shaped groove.
[0010] Preferably, the specimen height measuring device further comprises a first vertical plate and a second vertical plate, the first vertical plate and the second vertical plate are arranged opposite to each other and are respectively located at two ends of the placement groove, and the distance measuring sensor is installed on the first vertical plate and the second vertical plate.
[0011] Preferably, the first vertical plate and the second vertical plate are both provided with a plurality of the distance measuring sensors for measuring the distances to different positions of the test piece; wherein the plurality of the distance measuring sensors on the first vertical plate and the plurality of the distance measuring sensors on the second vertical plate are arranged relative to each other.
[0012] Preferably, four of the distance measuring sensors are disposed on each of the first vertical plate and the second vertical plate, and the four distance measuring sensors are distributed in a cross shape.
[0013] Preferably, the distance measuring sensor is an infrared laser distance measuring sensor.
[0014] Preferably, the specimen height measuring device also includes a detection sensor, which is used to detect the specimen to be tested, and the detection sensor and the distance measuring sensor are both connected to the controller signal; when the detection sensor detects that the specimen to be tested is placed in the placement slot, the controller controls the distance measuring sensor to start working.
[0015] Preferably, the detection sensor is a pressure sensor, and the pressure sensor is arranged at the bottom of the placement groove.
[0016] Preferably, the specimen height measuring device further comprises a touch panel, the touch panel is arranged on a side panel of the base platform, and the touch panel is connected to the controller signal.
[0017] Preferably, a power supply component is also provided on the side panel of the base platform, and the power supply component is used to supply power to the specimen height measuring device; a switch button is also provided on the side panel of the base platform, and the switch button is used to control the switch of the power supply component.
[0018] Compared with the prior art, the utility model has achieved the following technical effects:
[0019] The utility model is provided with distance measuring sensors at both ends of the placement groove. When measuring the height of the test piece, the test piece only needs to be placed in the placement groove. The distance measuring sensors at both ends of the placement groove measure the distance between each of them and the test piece. The height of the test piece can be obtained by subtracting the distance between the distance measuring sensors at both ends and the test piece from the length of the placement groove. The measuring process is simple, the measuring time is saved, and the work efficiency is improved. Moreover, the subjectivity and skill requirements of manual operation are reduced, so that the measurement result is more accurate and reliable. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.
[0021] Figure 1 It is a structural schematic diagram of a test piece height measuring device in an embodiment of the utility model;
[0022] Figure 2 A schematic diagram of a Marshall test piece in an embodiment of the utility model;
[0023] Figure 3 It is a test schematic diagram of the test piece height measuring device in the embodiment of the utility model.
[0024] In the figure: 1-basic platform, 101-side plate, 2-first vertical plate, 3-second vertical plate, 4-distance sensor, 5-pressure sensor, 6-touch panel, 7-switch button, 8-power supply component, 9-Marshall specimen. DETAILED DESCRIPTION
[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0026] The purpose of the utility model is to provide a test piece height measuring device to solve the problems existing in the above-mentioned prior art. The device can measure the height of the test piece through distance measuring sensors at both ends, thereby saving measurement time, improving work efficiency, and ensuring measurement accuracy.
[0027] In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.
[0028] Embodiment 1
[0029] like Figure 1-Figure 3 As shown, a test piece height measuring device is provided in this embodiment, which mainly includes a basic platform 1 and a distance measuring sensor 4. The basic platform 1 is provided with a placement groove, and the placement groove is used to place the test piece, and the extension direction of the placement groove is parallel to the height direction of the test piece; the distance measuring sensors 4 are provided at both ends of the placement groove, and the distance measuring sensors 4 are used to measure the distance between the test piece and the test piece.
[0030] In this embodiment, when measuring the height of the test piece, it is only necessary to place the test piece in the placement slot, and the distance measuring sensors 4 at both ends of the placement slot measure the distance between each of them and the test piece. The height of the test piece can be obtained by subtracting the distance between the distance measuring sensors 4 at both ends and the test piece from the length of the placement slot. The measurement process is simple, which saves measurement time and improves work efficiency. It also reduces the subjectivity and skill requirements of manual operation, making the measurement result more accurate and reliable.
[0031] Furthermore, it should be noted that the present embodiment does not limit the type and shape of the test piece, and different test pieces can be tested according to specific work needs. For example, the test piece can be a metal test piece or a concrete test piece, and the test piece can be a cylindrical test piece or a rectangular test piece.
[0032] As a preferred implementation, in this embodiment, Figure 2 As shown, the test piece is a Marshall specimen 9, which is cylindrical as a whole; and the placement groove can be set on the top of the base platform 1 and match the shape of the Marshall specimen 9, that is, the placement groove is an arc groove, which can ensure the stability of the Marshall specimen 9 when it is placed.
[0033] It should be noted that the length of the placement slot is greater than the height of the Marshall specimen 9. When measuring, the Marshall specimen 9 only needs to be placed in the placement slot without precise adjustment of the placement position, and the operation is simple.
[0034] In this embodiment, the specimen height measuring device also includes a first vertical plate 2 and a second vertical plate 3, the first vertical plate 2 and the second vertical plate 3 are arranged opposite to each other and are respectively located at the two ends of the placement groove, and the distance measuring sensor 4 is installed on the first vertical plate 2 and the second vertical plate 3, that is, the distance measuring sensors 4 at the two ends of the placement groove are respectively installed on the first vertical plate 2 and the second vertical plate 3; it should be noted that other mounting parts can also be set at the two ends of the placement groove to replace the first vertical plate 2 and the second vertical plate 3, for example, a mounting frame can be set at each end of the placement groove to install the distance measuring sensor 4.
[0035] Furthermore, in the present embodiment, a plurality of the distance measuring sensors 4 are disposed on the first vertical plate 2 and the second vertical plate 3, for measuring the distances to different positions of the Marshall specimen 9, so as to measure the heights of different positions of the Marshall specimen 9; wherein the plurality of the distance measuring sensors 4 on the first vertical plate 2 and the plurality of the distance measuring sensors 4 on the second vertical plate 3 are arranged relatively to each other, and the corresponding horizontal positions and heights of the distance measuring sensors 4 are the same; and the number of the distance measuring sensors 4 can be selected according to specific work needs, for example, the first vertical plate 2 and the second vertical plate 3 can be each provided with three, four or five, etc., distance measuring sensors 4.
[0036] As a preferred implementation, in this embodiment, four ranging sensors 4 are provided on each of the first upright plate 2 and the second upright plate 3. The four ranging sensors 4 are distributed in a cross shape and can measure the height of the Marshall specimen 9 in four cross-symmetrical directions.
[0037] In this embodiment, the distance measuring sensor 4 is preferably an infrared laser distance measuring sensor. Other distance measuring sensors 4, such as ultrasonic distance measuring sensors, etc., may also be selected as needed.
[0038] In this embodiment, the specimen height measuring device also includes a detection sensor, which is used to detect the Marshall specimen 9 (specifically, to detect whether the Marshall specimen 9 is placed in the placement slot), and the detection sensor and the distance sensor 4 are both connected to the controller signal; when the detection sensor detects that the Marshall specimen 9 is placed in the placement slot, the detection signal is transmitted to the controller, and the controller controls the distance sensor 4 to start working and perform measurement.
[0039] As a preferred implementation, in this embodiment, the detection sensor is a pressure sensor 5, and the pressure sensor 5 is arranged at the bottom of the placement groove. When the pressure sensor 5 detects pressure, it is determined that the placement groove contains a Marshall specimen 9. Other detection sensors can also be selected according to work needs. For example, a deformation sensing switch can be selected. When the Marshall specimen 9 is placed in the placement groove, the Marshall specimen 9 touches the deformation sensing switch to deform it, and it is determined that the placement groove contains a Marshall specimen 9.
[0040] In this embodiment, the specimen height measuring device also includes a touch panel 6, which is arranged on the side panel 101 of the base platform 1, and the touch panel 6 is connected to the controller signal; wherein, the touch panel 6 is a liquid crystal display touch screen, which can display the measurement results digitally or graphically, and has a data recording function to record the results of each measurement.
[0041] In this embodiment, a power supply component 8 is also provided on the side panel 101 of the basic platform 1, and the power supply component 8 is used to power the entire specimen height measuring device, wherein the power supply component 8 can be a battery or an external power supply; a switch button 7 is also provided on the side panel 101 of the basic platform 1, and the switch button 7 is used to control the power switch, wherein the switch button 7 is located at the lower side of the touch panel 6.
[0042] The measuring process of the test piece height measuring device in this embodiment is as follows:
[0043] 1. Prepare for the test and press the switch button 7 to start power supply.
[0044] 2. Place the Marshall specimen 9 to be tested in the placement groove of the basic platform 1, ensuring that it is placed stably and flatly. The pressure sensor 5 is activated by the self-weight of the Marshall specimen 9 to activate the infrared laser ranging sensor. The infrared laser ranging sensors at both ends simultaneously perform non-contact measurement on the fixed position of the top of the Marshall specimen 9.
[0045] 3. The measurement results are displayed on the touch panel 6 and the results of each measurement are recorded.
[0046] 4. After a Marshall specimen 9 is tested, the above work can be repeated for continuous measurement, which is suitable for on-site environment and frequent use.
[0047] In the present embodiment, after pressing the corresponding switch button 7, the operator of the specimen height measuring device only needs to place the Marshall specimen 9 on the base platform 1 to start measuring and record the measurement data. The operation is simple and the measurement accuracy can be guaranteed. The device is suitable for promotion and application to support the quality control and construction supervision of asphalt mixtures.
[0048] The present invention uses specific examples to illustrate the principle and implementation of the present invention. The above examples are only used to help understand the method and core idea of the present invention. At the same time, for those skilled in the art, according to the idea of the present invention, there will be changes in the specific implementation and application scope. In summary, the content of this specification should not be understood as limiting the present invention.
Claims
1. A test piece height measuring device, characterized in that: The device comprises a base platform and a distance measuring sensor. The base platform is provided with a placement slot, the placement slot is used to place the test piece, and the extension direction of the placement slot is parallel to the height direction of the test piece. The distance measuring sensors are provided at both ends of the placement slot, and the distance measuring sensors are used to measure the distance between the test piece and the test piece.
2. The test piece height measuring device according to claim 1, characterized in that: The placement groove is arranged on the top of the basic platform, and the placement groove is an arc-shaped groove.
3. The test piece height measuring device according to claim 1 or 2, characterized in that: The specimen height measuring device further comprises a first vertical plate and a second vertical plate, wherein the first vertical plate and the second vertical plate are arranged opposite to each other and are respectively located at two ends of the placement groove, and the distance measuring sensor is installed on the first vertical plate and the second vertical plate.
4. The test piece height measuring device according to claim 3, characterized in that: The first vertical plate and the second vertical plate are both provided with a plurality of the distance measuring sensors for measuring the distances to different positions of the test piece; wherein the plurality of the distance measuring sensors on the first vertical plate and the plurality of the distance measuring sensors on the second vertical plate are arranged opposite to each other.
5. The test piece height measuring device according to claim 4, characterized in that: Four distance measuring sensors are disposed on each of the first vertical plate and the second vertical plate, and the four distance measuring sensors are distributed in a cross shape.
6. The test piece height measuring device according to claim 1, characterized in that: The distance measuring sensor is an infrared laser distance measuring sensor.
7. The test piece height measuring device according to claim 2, characterized in that: The specimen height measuring device also includes a detection sensor, which is used to detect the specimen to be tested, and the detection sensor and the distance measuring sensor are both connected to the controller signal; when the detection sensor detects that the specimen to be tested is placed in the placement slot, the controller controls the distance measuring sensor to start working.
8. The test piece height measuring device according to claim 7, characterized in that: The detection sensor is a pressure sensor, and the pressure sensor is arranged at the bottom of the placement groove.
9. The test piece height measuring device according to claim 7 or 8, characterized in that: The specimen height measuring device further comprises a touch panel, which is arranged on a side panel of the base platform and is connected to the controller signal.
10. The test piece height measuring device according to claim 9, characterized in that: A power supply component is also provided on the side panel of the basic platform, and the power supply component is used to supply power to the specimen height measuring device; a switch button is also provided on the side panel of the basic platform, and the switch button is used to control the switch of the power supply component.