A cylindrical core sample size measuring device

Abstract

The utility model relates to engineering detection technical field, and disclose a kind of for cylinder core sample size measuring device, including bottom plate and rotationally connected in the top of bottom plate object table, further include: the support seat of being set in the four corners below bottom plate, the top rotationally connected of support seat has horizontal adjusting bolt, and the top end of horizontal adjusting bolt is through bottom plate and extends to the above of bottom plate;The utility model can integrated measurement, the measurement function of two key parameters of diameter and height is fused on the same equipment, greatly simplifies work flow, improves overall detection efficiency, by laser ranging technology, in combination with mechanical positioning and horizontal adjustment, it can realize very high measurement accuracy, so that measurement result is more objective, reliable, and the device versatility and adaptability are very strong, can be quickly adapted to different diameter and height specification cylinder core sample, realize one-key type fast measurement, provide the convenience for the measurement work of staff.

Description

Technical Field

[0001] This utility model relates to the field of engineering testing technology, specifically a device for measuring the size of cylindrical core samples. Background Technology

[0002] In fields such as geotechnical engineering, geological exploration, and concrete structure testing, cylindrical core samples are a common sampling method widely used to obtain information on the physical and mechanical properties of underground or internal structures. Through laboratory testing of cylindrical core samples, key parameters such as the strength, density, and porosity of materials can be evaluated, providing important basis for engineering design, quality assessment, and disease diagnosis.

[0003] Currently, vernier calipers are mainly used to measure the dimensions of cylindrical core samples. However, during the measurement process, core samples of different diameters are encountered. For small-diameter core samples, such as a cylindrical core sample with a diameter × height of (75×75) mm, common vernier calipers can normally measure the diameter and height of the top, middle, and bottom sections according to specifications. However, for slightly larger diameter cylinders, such as a cylindrical core sample with a diameter × height of (150×150) mm, the outer measuring jaws of common vernier calipers cannot measure their diameter, especially the diameter of the middle section. A larger vernier caliper is required to obtain a larger outer measuring jaw for measurement. However, the vernier calipers that can measure a 150 mm diameter cylinder are 100 cm long, which is inconvenient to use during the measurement process. This inspection method is not user-friendly, and different vernier calipers are required for different specifications of core samples. In addition, when measuring the height, the upright core sample needs to be laid down, which also makes the inspection method inefficient and inconvenient for the staff. Utility Model Content

[0004] The purpose of this invention is to provide a device for measuring the size of cylindrical core samples, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a device for measuring the dimensions of a cylindrical core sample, comprising a base plate and a stage rotatably connected to the top of the base plate, and further comprising:

[0006] The base plate has four support seats at the bottom corners. The top of each support seat is rotatably connected to a horizontal adjustment bolt. The top of the horizontal adjustment bolt passes through the base plate and extends to the top of the base plate. The horizontal adjustment bolt is threaded to the base plate. A support rod is fixed to the right side of the base plate, and a display screen is fixed to the top of the support rod.

[0007] A mounting plate is fixed to the left and right sides of the rear top of the base plate. A ferrule is fitted on the upper surface of the mounting plate, and the ferrule is U-shaped. A positioning bolt is threaded through one side of the ferrule and connected to the ferrule by threads. A movable plate is fixed to the front side of the ferrule. Mounting strips are fixed to the left and right sides of the front side of the movable plate. A first laser rangefinder is fixed to the front side of the mounting strip. A pressure plate is fixed to the front side of the movable plate. A sliding groove is formed on the surface of the pressure plate, and a sliding plate is slidably connected inside the groove. A second laser rangefinder is fixed to the back of the movable plate. A measuring plate is fixed to the rear side of the top of the base plate.

[0008] Preferably, a first level is fixed to the right side of the top of the base plate, and a second level is fixed to the left side of the front of the movable plate.

[0009] Preferably, the mounting strips are symmetrically distributed on the left and right sides of the front surface of the movable plate, and the first laser rangefinder is located on the left and right sides above the center of the platform, with the output sections of the first laser rangefinder facing each other.

[0010] Preferably, the surface of the top of the stage has multiple scale lines, and the scale lines are arranged in a ring.

[0011] Preferably, the pressure plate has limit grooves on both the left and right sides, and the sliding plate has limit pieces fixed behind both the left and right sides. The limit pieces extend into the interior of the limit grooves and slide in connection with the inner wall of the limit grooves.

[0012] Preferably, the output section of the second laser rangefinder is perpendicular to the surface of the measuring plate, and the height of the output section at the bottom of the second laser rangefinder is the same as the height of the bottom of the pressure plate, and the height of the top of the measuring plate is the same as the height of the top of the platform.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] This invention enables integrated measurement, combining the measurement functions of two key parameters, diameter and height, into a single device. This greatly simplifies the workflow and improves overall testing efficiency. Through laser ranging technology, combined with mechanical positioning and level adjustment, it achieves extremely high measurement accuracy, making the measurement results more objective and reliable. Moreover, the device is highly versatile and adaptable, quickly adapting to cylindrical core samples of different diameters and heights, enabling one-click rapid measurement and providing convenience for workers' measurement tasks. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0016] Figure 2 This is a three-dimensional schematic diagram of the base plate of this utility model;

[0017] Figure 3 This is a three-dimensional schematic diagram of the mounting plate in this utility model;

[0018] Figure 4 This is a three-dimensional schematic diagram of the movable plate in this utility model.

[0019] In the diagram: 1. Base plate; 2. Platform; 3. First level; 4. Support base; 5. Leveling bolt; 6. Support rod; 7. Display screen; 8. Mounting plate; 9. Sleeve; 10. Positioning bolt; 11. Movable plate; 12. Mounting strip; 13. First laser rangefinder; 14. Pressure plate; 15. Slide groove; 16. Sliding plate; 17. Second laser rangefinder; 18. Measuring plate; 19. Second level; 20. Limiting groove; 21. Limiting piece; 22. Scale line. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Please see Figure 1-4 As shown, a device for measuring the dimensions of a cylindrical core sample includes a base plate 1. A platform 2 is rotatably connected to the top of the base plate 1. Support seats 4 are provided at the four corners below the base plate 1. Horizontal adjusting bolts 5 are rotatably connected to the top of the support seats 4, with the top ends of the horizontal adjusting bolts 5 penetrating the base plate 1 and extending above it. The horizontal adjusting bolts 5 are threadedly connected to the base plate 1. A support rod 6 is fixed to the right side of the base plate 1, and a display screen 7 is fixed to the top end of the support rod 6. Mounting plates 8 are fixed to the left and right sides of the rear top of the base plate 1. A retaining sleeve 9 is fitted onto the upper surface of the mounting plate 8. The sleeve 9 is U-shaped. A positioning bolt 10 is installed through one side of the sleeve 9 and is threadedly connected to the sleeve 9. A movable plate 11 is fixed to the front of the sleeve 9. Mounting strips 12 are fixed to the left and right sides of the front of the movable plate 11. A first laser rangefinder 13 is fixed to the front of the mounting strips 12. A pressure plate 14 is fixed to the front of the movable plate 11. A sliding groove 15 is opened on the surface of the pressure plate 14, and a sliding plate 16 is slidably connected inside the sliding groove 15. A second laser rangefinder 17 is fixed to the back of the movable plate 11. A measuring plate 18 is fixed to the rear side of the top of the base plate 1.

[0022] A first level 3 is fixed to the right side of the top of the base plate 1, and a second level 19 is fixed to the left side of the front of the movable plate 11. The first level 3 can measure whether the base plate 1 and the stage 2 are in a horizontal state before measuring the cylindrical core sample, so as to avoid the cylindrical core sample being tilted when placed on the stage 2, which would affect the subsequent measurement work. The second level 19 can determine whether the movable plate 11 is in a horizontal state after the adjustment when the ferrule 9 slides up and down on the surface of the mounting plate 8 to adjust the height, so as to avoid the first laser rangefinder 13 irradiation direction being deviated, which would affect the measurement results.

[0023] The mounting strips 12 are symmetrically distributed on the left and right sides of the front surface of the movable plate 11. The first laser rangefinder 13 is located on the left and right sides above the center of the platform 2. The outputs of the first laser rangefinder 13 are set facing each other. When the operator places the cylindrical core sample on the platform 2, after aligning the center of the cylindrical core sample with the center of the platform 2, the first laser rangefinder 13 is lowered to the left and right sides of the cylindrical core sample. By shooting the laser through the outputs of the first laser rangefinder 13, the diameter of the cylindrical core sample above the platform 2 can be quickly measured and displayed on the display screen 7.

[0024] The top surface of the stage 2 has multiple scale lines 22 arranged in a ring. When the staff places cylindrical core samples of different specifications on the stage 2, the scale lines 22 can be used to adjust the position of the cylindrical core samples so that they are aligned with the center of the stage 2.

[0025] Limiting grooves 20 are provided on both the left and right sides of the pressure plate 14. Limiting plates 21 are fixed behind both the left and right sides of the sliding plate 16. The limiting plates 21 extend into the interior of the limiting grooves 20 and slide against the inner wall of the limiting grooves 20. The output of the second laser rangefinder 17 is perpendicular to the surface of the measuring plate 18, and the height of the bottom output of the second laser rangefinder 17 is the same as the height of the bottom of the pressure plate 14. The height of the top of the measuring plate 18 is the same as the height of the top of the stage 2. After the diameter of the cylindrical core sample is measured, the operator can move the movable... The plate 11 rises and pulls the sliding plate 16. According to the size of the cylindrical core sample, the sliding plate 16 rests on one side of the top of the cylindrical core sample. Through the setting of the limiting groove 20 and the limiting piece 21, the sliding plate 16 can be limited, so that the sliding plate 16 can only slide back and forth. After the sliding plate 16 rests on the top of the cylindrical core sample, the operator can open the second laser rangefinder 17 behind it, so that the output of the second laser rangefinder 17 will irradiate the surface of the measuring plate 18 below, and the height of the cylindrical core sample can be measured.

[0026] Working principle: First, the operator rotates the leveling bolts 5 on the top of the four support seats 4, using the first level 3 on the right side of the base plate 1 as a reference, to finely adjust the entire base plate 1 and the platform 2 fixed on it to an absolutely level state. Then, the cylindrical core sample is placed vertically on the rotatable platform 2. Using the annular scale line 22 engraved on the surface of the platform 2, the core sample axis is quickly aligned with the rotation center of the platform 2, completing the precise positioning before measurement. Next, the diameter is measured. The operator loosens the positioning bolts 10, slides the retaining sleeve 9 downwards, and drives the entire movable plate 11 and its front components to descend. Observe the second level 19 on the front of the movable plate 11 to ensure that the movable plate 11 remains horizontal during descent and after positioning. This ensures that the laser beams of the two first laser rangefinders 13 fixed on it are on the same horizontal plane and are parallel to each other. After the movable plate 11 descends to the predetermined measurement height, tighten the positioning bolts 10 to fix it. At this time, the laser beams of the first laser rangefinders 13, which are symmetrically distributed on the mounting strips 12 on the left and right sides of the movable plate 11, hit the outer contours of both sides of the cylindrical core sample. Each first laser rangefinder 13 will accurately measure its own distance to the surface of the core sample. This is the core of the device. The algorithm receives these two distance values ​​and combines them with the pre-calibrated fixed reference distance between the two first laser rangefinders 13. Using the formula "Diameter = Fixed Reference Distance - (Left Range Value + Right Range Value)," it instantly calculates the precise diameter of the cross-section. When measuring different cross-sectional diameters, simply loosen the positioning bolts 10, adjust the movable plate 11 to the new height and re-fix it, or slightly rotate the stage 2 to change the core sample's orientation. The entire process requires no movement of the core sample. Finally, the height is measured. After completing the diameter measurement, the operator slides the movable plate 11 upwards to the appropriate height and then pulls it forward. The sliding plate 16 slides forward stably within the limiting groove 20 of the pressure plate 14 via the limiting plates 21 on both sides. The front end of the sliding plate 16 extends out and gently rests on the top edge of the cylindrical core. At this time, the laser beam of the second laser rangefinder 17, which is fixed to the back of the movable plate 11, is emitted vertically downward. Since the top of the measuring plate 18 is at the same precise height as the top of the platform 2, the distance measured by the second laser rangefinder 17 is actually the vertical distance from itself to the plane of the platform 2. All the measured diameter and height data are finally displayed in real time on the display screen 7 located at the top of the support rod 6.

[0027] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A device for measuring the dimensions of a cylindrical core sample, comprising a base plate (1) and a stage (2) rotatably connected to the top of the base plate (1), characterized in that, Also includes: Support bases (4) are set at the four corners below the base plate (1). The top of the support base (4) is rotatably connected to a horizontal adjustment bolt (5). The top of the horizontal adjustment bolt (5) passes through the base plate (1) and extends to the top of the base plate (1). The horizontal adjustment bolt (5) is threadedly connected to the base plate (1). A support rod (6) is fixed on the right side of the base plate (1). A display screen (7) is fixed on the top of the support rod (6). Mounting plates (8) are fixed to the left and right sides of the rear top of the base plate (1). A sleeve (9) is fitted on the upper surface of the mounting plate (8). The sleeve (9) is U-shaped. A positioning bolt (10) is provided through one side of the sleeve (9). The positioning bolt (10) is threadedly connected to the sleeve (9). A movable plate (11) is fixed to the front side of the sleeve (9). Mounting strips (12) are fixed to the left and right sides of the front side of the movable plate (11). A first laser rangefinder (13) is fixed to the front side of the mounting strip (12). A pressure plate (14) is fixed to the front side of the movable plate (11). A sliding groove (15) is opened on the surface of the pressure plate (14). A sliding plate (16) is slidably connected inside the sliding groove (15). A second laser rangefinder (17) is fixed to the back of the movable plate (11). A measuring plate (18) is fixed to the rear side of the top of the base plate (1).

2. The device for measuring the size of a cylindrical core sample according to claim 1, characterized in that: A first level (3) is fixed on the right side of the top of the base plate (1), and a second level (19) is fixed on the left side of the front of the movable plate (11).

3. The device for measuring the dimensions of a cylindrical core sample according to claim 1, characterized in that: The mounting strips (12) are symmetrically distributed on the left and right sides of the front surface of the movable plate (11). The first laser rangefinder (13) is located on the left and right sides above the center of the platform (2). The outputs of the first laser rangefinder (13) are arranged facing each other.

4. The device for measuring the dimensions of a cylindrical core sample according to claim 1, characterized in that: The top surface of the stage (2) is provided with multiple scale lines (22), and the scale lines (22) are arranged in a ring.

5. The device for measuring the size of a cylindrical core sample according to claim 1, characterized in that: Limiting grooves (20) are provided on both the left and right sides of the pressure plate (14), and limiting pieces (21) are fixed behind both the left and right sides of the sliding plate (16). The limiting pieces (21) extend into the interior of the limiting grooves (20) and slide in connection with the inner wall of the limiting grooves (20).

6. The device for measuring the dimensions of a cylindrical core sample according to claim 1, characterized in that: The output of the second laser rangefinder (17) is perpendicular to the surface of the measuring plate (18), and the height of the output at the bottom of the second laser rangefinder (17) is the same as the height of the bottom of the pressure plate (14). The height of the top of the measuring plate (18) is the same as the height of the top of the stage (2).

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