Positioning reference plate and compression resistance testing device
By using a positioning reference plate with a central reference line and a marker in the compressive test device, the inaccurate test data problem caused by inaccurate sample placement is solved, and the rapid, accurate positioning and efficient testing of the sample is achieved.
Patent Information
- Application Number
- CN202421790628.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-26
- Publication Date
- 2025-07-29
- Estimated Expiration
- 2034-07-26
AI Technical Summary
When the existing compression test device is inaccurate in the sample placement position, the test data will be inaccurate, which will affect the judgment, and the existing positioning method is complex and the degree of visualization is low.
A positioning reference plate is designed, including horizontal and vertical central reference lines, as well as multiple horizontal and vertical markings, equipped with different color and spacing marking groups to assist in central placement of samples and simplifying the positioning process.
It improves the accuracy of sample placement and the reliability of test data, reduces operation difficulty, improves testing efficiency and stability, and avoids data controversy.
Smart Images
Figure CN223166477U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of test devices, and particularly to a positioning reference plate and a compressive strength testing device. Background Art
[0002] A compressive strength testing machine is the most direct test instrument for inspecting the pressure resistance (also called bearing pressure) of cartons or other packaging containers such as bottles, barrels, and bags. It is an ideal testing device for enterprises, scientific research institutions, and packaging container supervision departments. During testing, in order to accurately measure the actual bearing capacity of the sample, the object to be tested should be placed in the center of the upper surface of the lower platen. Deviation will affect the test data. Especially when there is a large numerical deviation between the incoming material inspection of the supplier and the demander, the accuracy of the test position often becomes a controversial point. In the lightest case, it will lead to re-inspection and affect work efficiency. In the worst case, it will result in misjudgment and cause great losses to both the supply and demand sides. The existing compressive strength testing machines usually judge by the method of visual inspection by the tester, so there will be disputes about the data accuracy.
[0003] CN201819833U proposes a carton compressive strength testing machine, which is provided with criss-crossed cross-shaped positioning grooves on the upper surface of the lower platen, and a positioning reference point is obtained by the cross intersection. However, the workload of engraving grooves on the steel plate of the lower platen is large, the positioning reference form is too single, and for a compressive strength testing machine with a large test area, it is not easy for the tester to see clearly the scale corresponding to the center position from the standing position, and the visualization degree is low. Summary of the Utility Model
[0004] In view of this, the utility model proposes a positioning reference plate and a compressive strength testing device, which can solve the above existing technical problems. The utility model provides the following technical solutions:
[0005] A positioning reference plate for a compressive strength testing device includes: a horizontal central reference line passing through the geometric center point of the positioning reference plate; a vertical central reference line passing through the geometric center point of the positioning reference plate and perpendicular to the horizontal central reference line; and a plurality of horizontal marking lines parallel to the horizontal central reference line; and / or a plurality of vertical marking lines parallel to the vertical central reference line, and / or a geometric figure reference line, the center point of which coincides with the geometric center point of the positioning reference plate.
[0006] Optionally, it further includes: a horizontal central reference line scale for marking the horizontal central reference line; and / or a vertical central reference line scale for marking the vertical central reference line.
[0007] Optionally, the plurality of horizontal marking lines are evenly distributed on both sides of the horizontal central reference line; the plurality of vertical marking lines are evenly distributed on both sides of the vertical central reference line.
[0008] Optionally, the plurality of horizontal marking lines include multiple levels of horizontal marking line groups, wherein the line spacings, line widths, and / or colors of different levels of horizontal marking line groups are different; and / or the plurality of vertical marking lines include multiple levels of vertical marking line groups, wherein the line spacings, line widths, and / or colors of different levels of vertical marking line groups are different.
[0009] Optionally, it further includes: a horizontal edge scale located at the upper edge and / or lower edge of the positioning reference plate; and / or a vertical edge scale located at the left edge and / or right edge of the positioning reference plate.
[0010] Optionally, the geometric figure reference line is one or a combination of a circle, an ellipse, a rectangle, and a rounded rectangle.
[0011] Optionally, different geometric figure reference lines have different colors.
[0012] Optionally, at least one edge of the positioning reference plate has a downward extending vertical plate.
[0013] A compressive strength testing device includes: a base; a lower pressing plate located above the base; an upper pressing plate parallel to and corresponding in position to the lower pressing plate; vertical guide columns located above the base; a cross beam capable of moving up and down along the vertical guide columns; a connecting unit for connecting the cross beam and the upper pressing plate; and the positioning reference plate of the present application, wherein the positioning reference plate is detachably fixed to the top of the lower pressing plate.
[0014] Optionally, the lower pressing plate includes a fixing member for fixing the positioning reference plate.
[0015] According to the positioning reference plate applicable to a compressive strength testing device of the present utility model, rich reference marks are drawn on the positioning reference plate, and these reference marks help users place the specimen at the central position where the testing effect is theoretically optimal during testing, making the positioning reference plate have the advantages of simple structure, convenient use, easy replacement, wide application range, etc. The compressive strength testing device of the present utility model having this positioning reference plate can avoid the problem that inaccurate compressive strength data is caused by the non-centered placement position of the sample, thereby affecting the test result and judgment, and can improve the accuracy of the detection data. Description of the Drawings
[0016] For purposes of illustration and not limitation, the present utility model will now be described in accordance with the preferred embodiments of the present utility model, particularly with reference to the accompanying drawings, wherein:
[0017] Figure 1 is a schematic diagram of the compressive strength testing device according to the embodiment of the present utility model;
[0018] Figure 2 A three-dimensional schematic diagram of the positioning reference plate in the compression test device according to an embodiment of the present utility model;
[0019] Figure 3 A top view of one of the embodiments of the positioning reference plate according to an embodiment of the present utility model;
[0020] Figure 4 A top view of the second embodiment of the positioning reference plate according to an embodiment of the present utility model.
[0021] In the figure:
[0022] 1 - Base; 2 - Lower pressure plate; 21 - Positioning reference plate; 211 - Lower extension vertical plate; 3 - Vertical guide post; 31 - Guide rail; 4 - Cross beam; 5 - Connection unit; 6 - Upper pressure plate; 7 - Sensor; 8 - Control unit; 9 - User interaction module. Specific embodiments
[0023] Next, the technical solution of the present utility model will be clearly and completely described in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present utility model, rather than all of them. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative work shall fall within the protection scope of the present utility model.
[0024] In the description of the present utility model, it should be noted that unless otherwise clearly defined and limited, terms such as "installation" and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.
[0025] The present utility model aims to solve the problem that the compression test device cannot accurately achieve centering positioning when testing samples of different shapes and sizes, thereby avoiding inaccurate compression data, affecting test results and strategy judgment due to the non - centered placement position of the samples.
[0026] The positioning reference plate according to the embodiment of the present utility model is applicable to a compression test device. For the convenience of understanding, the overall usage scenario of the positioning reference plate according to the embodiment of the present utility model, that is, the compression test device, will be introduced first in conjunction with the accompanying drawings.
[0027] As Figure 1As shown in the figure, the compression test device of the embodiment of the present utility model mainly includes a base 1, a lower pressure plate 2, two vertical guide columns 3, a cross beam 4, a connection unit 5 and an upper pressure plate 6. In addition, the compression test device may further include a sensor 7, a control unit 8 and a user interaction module 9.
[0028] The lower pressure plate 2 is located above the base 1. The upper pressure plate 6 is parallel to and corresponding in position to the lower pressure plate 2. The lower pressure plate 2 and the upper pressure plate 6 are generally made of steel plates, having the advantages of being hard and firm.
[0029] A detachable positioning reference plate 21 is provided on the top of the lower pressure plate 2. On the one hand, rich reference marks can be drawn on the upper surface of the positioning reference plate 21, and these reference marks can provide references for the placement position of the test sample; on the other hand, it is detachably arranged on the top of the lower pressure plate 2, and the model can be flexibly switched according to requirements, or it can be replaced after being soiled or worn. The positioning reference plate 21 can be made according to the length and width dimensions of different lower pressure plates 2. The material and thickness of the positioning reference plate 21 are not limited, as long as it will not be deformed under pressure and does not affect the test. For example, a PVC thin sheet with a thickness of 0.5 mm can be used, which has the advantages of light texture, convenient movement, clear positioning and low cost.
[0030] The vertical guide columns 3 are located above the base 1. The number of vertical guide columns can be two, and guide rails 31 extending in the vertical direction are provided on the side walls of the two vertical guide columns 3 facing each other.
[0031] The cross beam 4 can move up and down along the vertical guide columns 3. Specifically, both ends of the cross beam 4 are respectively embedded in the guide rails 31 of the two vertical guide columns 3, so that the cross beam 4 can move in the vertical direction.
[0032] The connection unit 5 is used to connect the cross beam 4 and the upper pressure plate 6. The connection unit 5 may include four leveling feet, and these four leveling feet are connected to the top of the upper pressure plate 6 for adjusting the upper pressure plate 6 to keep it horizontal.
[0033] The sensor 7 is located above the upper pressure plate 6 and is used to sense the compression magnitude of the test specimen during the test. The control unit 8 is connected to the sensor 7 and is used to control and adjust the test parameters. The user interaction module 9 is connected to the control unit 8, which is convenient for the user to input operation instructions and view test data.
[0034] According to the compression test device of the embodiment of the present utility model, a detachable positioning reference plate 21 is provided above the lower pressure plate. The detachable installation method has the advantage of flexible use and is easy to update or replace.
[0035] As Figure 2As shown, in the compression test device according to the embodiment of the present utility model, at least one edge of the positioning reference plate 21 has a downward extending vertical plate 211. This downward extending vertical plate 211 can help the positioning reference plate 21 closely abut against the edge of the lower pressing plate 2 and be aligned in position, which is beneficial to ensuring the constant position of the positioning reference plate 21 during multiple test experiments and can improve the stability of the test.
[0036] The lower pressing plate 2 may further include a fixing member (not shown in the figure), and this fixing member is used for the positioning reference plate 21. The specific form of the fixing member can be flexibly selected. A spring strip can be used to press the corners of the positioning reference plate 21, or a combination of nuts and bolts can be used to fix the positioning reference plate 21 on the top of the lower pressing plate 2. This design is also beneficial to ensuring the constant position of the positioning reference plate 21 during multiple test experiments and can improve the stability of the test.
[0037] According to the compression test device of the embodiment of the present utility model, rich reference marks are drawn on the positioning reference plate, and these reference marks help the user place the specimen at the central position where the test effect is theoretically the best during the test.
[0038] As Figures 2 to 4 shown, the positioning reference plate 21 at least includes: a horizontal central reference line; and / or, a vertical central reference line; and / or, a horizontal central reference line scale; and / or, a vertical central reference line scale. Among them: the horizontal central reference line scale is located near the horizontal central reference line and is used to mark the horizontal central reference line; the vertical central reference line scale is located near the vertical central reference line and is used to mark the vertical central reference line.
[0039] As Figure 3 and Figure 4 shown, the positioning reference plate 21 may further include a plurality of horizontal marking lines and / or a plurality of vertical marking lines. Among them, the plurality of horizontal marking lines are evenly distributed on both sides of the horizontal central reference line; the plurality of vertical marking lines are evenly distributed on both sides of the vertical central reference line. Preferably, the plurality of horizontal marking lines include multiple levels of horizontal marking line groups, where the line spacings of different levels of horizontal marking line groups are different and the colors are different; and / or, the plurality of vertical marking lines include multiple levels of vertical marking line groups, where the line spacings of different levels of vertical marking line groups are different and the colors are different.
[0040] Specifically, for example, scale lines can be set from the midpoints of the horizontal central reference line and the vertical central reference line to both ends. The scale lines can be marked at equal intervals such as 5 mm and 10 mm. Different interval markings use different colors and line widths to facilitate the user to read the scale more quickly. By checking whether the reference marks on both sides of the sample are symmetric, it can be quickly determined whether the sample is placed centrally, thus achieving rapid positioning of the sample. Preferably, the horizontal central reference line and the vertical central reference line are marked with color 1 and line width 1, the minimum equally spaced scale lines are marked with color 2 and line width 2, the equally spaced markings every m times the minimum scale are marked with color 3 and line width 3, the equally spaced markings every n times the minimum scale line distance are marked with color 4 and line width 4, etc., for easy positioning and identification. For example, the horizontal central reference line and the vertical central reference line are marked with thick red lines; 5 mm is the minimum unit distance for the markings within the entire plane, and black thin lines are used to draw the smallest grid. Every 20 mm interval uses medium-thick green lines, and every 50 mm interval uses medium-thick magenta lines, and so on. The specific equal interval positions, colors, and line widths are not limited as long as they can meet the requirements of marking identification and differentiation.
[0041] As Figure 3 and Figure 4 shown, the positioning reference plate 21 may further include a horizontal edge scale and a vertical edge scale. The horizontal edge scale may be located at the upper edge and / or the lower edge of the positioning reference plate 21; the vertical edge scale may be located at the left edge and / or the right edge of the positioning reference plate 21.
[0042] As Figure 4 shown, the positioning reference plate 21 may further include geometric figure reference lines. The number of geometric figure reference lines may be multiple. The center point of each geometric figure reference line coincides with the geometric center point of the positioning reference plate 21. During testing, corresponding positioning lines can be selected according to the shape and size of the sample to be measured to achieve rapid positioning. This design can eliminate manual visual alignment and manual measurement with a ruler, reduce the testing difficulty, and improve the testing efficiency. In particular, in the scenario of testing samples with shapes such as circles and ellipses, the efficiency can be significantly improved.
[0043] The geometric figure reference lines can be one or a combination of multiple of circles, ellipses, rectangles, and rounded rectangles, and different geometric figure reference lines can have different colors. Specifically, according to the shape and size of the products mainly tested in the application scenario, such as circular barrels of different sizes, plastic bottles of different shapes and sizes, cardboard boxes, etc., different sizes of circles, rectangles, etc. can be set on the positioning reference plate 21 and marked with different colors respectively for positioning and identification matching the size of the object to be measured; dedicated positioning reference plates 21 can also be set for different tests, and the corresponding models can be selected during use.
[0044] For better understanding by those skilled in the art, the following briefly introduces how to position and place a test sample using the compressive test device with a positioning reference plate according to the embodiments of the present utility model.
[0045] Method 1: According to the maximum length and width dimensions of the bottom of the sample, calculate the half-length value and half-width value to determine the specific scale line range on the positioning reference plate for placing the sample, so as to achieve centered placement. For example, if it is measured that the length of the bottom of a certain sample is 100 cm and the width is 60 cm, calculate the half-length value to be 50 cm and the half-width value to be 30 cm. Then find two vertical reference lines marked with 50 cm and -50 cm, and two horizontal reference lines marked with 30 cm and -30 cm on the positioning reference plate, and then place the sample inside the area defined by these four reference lines.
[0046] Method 2: Directly place the sample at a roughly middle position on the positioning reference plate, adjust the position by referring to the positions of various scale lines on the positioning reference plate and the offset distances left and right, front and back, and finally achieve centered placement by referring to the scale line colors and scales.
[0047] It can be understood that the positioning reference plate according to the embodiments of the present utility model can achieve rapid positioning of samples with different shapes and sizes, has a high degree of visualization, is conducive to the centering placement operation of the samples, can reduce the difficulty of test operation positioning, improve the stability, accuracy and desirability of experimental results, and avoid disputes over test results. The positioning reference plate can be customized in shape and size according to different shaped samples, is replaceable, has a high degree of visualization, high flexibility, and is more convenient to use. And because it can be replaced after wear, it is more guaranteed than directly engraving positioning lines on the plane of the upper pressure plate steel plate.
[0048] The above specific embodiments do not constitute a limitation to the protection scope of the present utility model. Those skilled in the art should understand that various modifications, combinations, sub-combinations and substitutions can occur depending on design requirements and other factors. Any modifications, equivalent replacements and improvements made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.
Claims
1. A positioning reference plate for a compressive testing device, characterized in that, Comprising: A horizontal central reference line that passes through the geometric center point of the positioning reference plate; A vertical central reference line that passes through the geometric center point of the positioning reference plate and is perpendicular to the horizontal central reference line; and Multiple horizontal marking lines that are parallel to the horizontal central reference line; and / or Multiple vertical marking lines that are parallel to the vertical central reference line, and / or A geometric figure reference line whose center point coincides with the geometric center point of the positioning reference plate.
2. The positioning reference board according to claim 1, wherein Further comprising: A horizontal central reference line scale for marking the horizontal central reference line; and / or A vertical central reference line scale for marking the vertical central reference line.
3. The positioning reference plate according to claim 1, wherein The multiple horizontal marking lines are evenly distributed on both sides of the horizontal central reference line; The multiple vertical marking lines are evenly distributed on both sides of the vertical central reference line.
4. The positioning reference plate according to claim 2, wherein The multiple horizontal marking lines include multiple levels of horizontal marking line groups, wherein the line spacings, line widths, and / or colors of different levels of horizontal marking line groups are different; and / or The multiple vertical marking lines include multiple levels of vertical marking line groups, wherein the line spacings, line widths, and / or colors of different levels of vertical marking line groups are different.
5. The positioning reference board according to claim 1, characterized in that Further comprising: A horizontal edge scale located at the upper edge and / or lower edge of the positioning reference plate; and / or A vertical edge scale located at the left edge and / or right edge of the positioning reference plate.
6. The positioning reference board according to claim 1, wherein, The geometric figure reference line is one or a combination of a circle, an ellipse, a rectangle, and a rounded rectangle.
7. The positioning reference board according to claim 1, characterized in that, The colors of different geometric figure reference lines are different.
8. The positioning reference plate according to claim 1, characterized in that At least one edge of the positioning reference plate has a downward extending vertical plate.
9. A compressive test device, characterized in that, Comprising: A base; A lower pressing plate located above the base; An upper pressing plate parallel to and corresponding in position to the lower pressing plate; Vertical guide columns located above the base; A cross beam that can move up and down along the vertical guide columns; A connecting unit for connecting the cross beam and the upper pressing plate; and The positioning reference plate according to any one of claims 1 to 8, wherein the positioning reference plate is detachably fixed to the top of the lower pressing plate.
10. The compressive testing device according to claim 9, characterized in that, The lower pressing plate includes a fixing member for fixing the positioning reference plate.