A device for measuring the perpendicularity and flatness of a concrete core sample

Abstract

The utility model provides a kind of perpendicularity, flatness measuring device of concrete core sample, including rigid base, vertical ruler, horizontal ruler assembly and angle plate;The upper surface of the rigid base is horizontal hard surface, the bottom end of the vertical ruler is fixed on rigid base, the vertical ruler is perpendicular with the horizontal hard surface;The horizontal ruler assembly includes horizontal ruler, horizontal ruler pointer, locking mechanism and angle pointer, the horizontal ruler is adjustably fixed on the vertical ruler by locking mechanism, one long side of the horizontal ruler is as the scale pointer of vertical ruler, the horizontal ruler is hingedly connected between locking mechanism;The horizontal ruler pointer is slidingly matched with the horizontal ruler, as the scale pointer of horizontal ruler;The angle pointer is fixed to the tail end of horizontal ruler and with horizontal ruler on same straight line;The angle plate is angle indicating disc matched with the angle pointer, the angle plate is fixed together with the locking mechanism, and the device can quickly measure concrete core sample.

Description

Technical Field

[0001] This utility model relates to the field of water conservancy engineering technology, specifically to a device for measuring the verticality and flatness of concrete core samples. Background Technology

[0002] The rebound core sampling method is suitable for estimating the strength of structural concrete. After the concrete core sample is drilled from the structure, it is processed and cured, and finally the compressive strength of the core sample is tested using a pressure machine.

[0003] Before testing, the diameter, height, flatness, and verticality of the concrete core sample need to be measured. The flatness deviation should not exceed 0.1% of the diameter, and the verticality deviation should not exceed 1°. Only after meeting the requirements can the compressive strength of the core sample be tested.

[0004] Traditional testing methods require the use of steel rulers, angle gauges, and feeler gauges for measurement, which involves a large number of instruments and a relatively complicated measurement procedure.

[0005] Therefore, a dedicated measuring device needs to be designed for concrete core samples to enable rapid testing and improve measurement efficiency. Utility Model Content

[0006] The purpose of this invention is to address the shortcomings of existing technologies by providing a concrete core sample verticality and flatness measuring device specifically designed for concrete core sample testing and improving testing efficiency.

[0007] To achieve the above objectives, the technical solution adopted by this utility model is: a concrete core sample verticality and flatness measuring device, comprising a rigid base, a vertical ruler, a horizontal ruler assembly, and an angle plate;

[0008] The upper surface of the rigid base is a horizontal hard surface, and the bottom end of the vertical ruler is fixed to the rigid base. The vertical ruler is perpendicular to the horizontal hard surface.

[0009] The horizontal ruler assembly includes a horizontal ruler, a horizontal ruler pointer, a locking mechanism, and an angle pointer. The horizontal ruler is adjustablely fixed to the vertical ruler via the locking mechanism. One of the long sides of the horizontal ruler serves as the scale pointer of the vertical ruler. The horizontal ruler and the locking mechanism are hinged together.

[0010] The pointer of the horizontal ruler slides with the horizontal ruler and serves as the scale pointer of the horizontal ruler;

[0011] The angle pointer is fixed to the end of the horizontal ruler and is on the same straight line as the horizontal ruler.

[0012] The angle disc is an angle indicator disc that works in conjunction with the angle pointer, and the angle disc is fixed together with the locking mechanism.

[0013] Preferably, the tail end of the horizontal ruler is hinged to the locking mechanism, and the zero mark of the horizontal ruler is aligned with the adjacent boundary of the vertical ruler.

[0014] Preferably, the locking mechanism includes a sliding sleeve and a bolt for laterally tightening and fixing the sliding sleeve, the sliding sleeve slidingly engaging with the vertical ruler, and the bolt for pressing and locking the sliding sleeve and the vertical ruler together.

[0015] Preferably, the ruler pointer includes a ruler sliding sleeve and an adjustable pointer, the ruler sliding sleeve is in sliding engagement with the ruler, and the height of the adjustable pointer is adjustable.

[0016] Preferably, the end of the angle pointer is a pointed tip.

[0017] Preferably, the angle disc is a protractor.

[0018] Preferably, the straight edge of the protractor is pressed against the vertical edge of the vertical ruler.

[0019] Preferably, the straight edge of the protractor and the vertical edge of the ruler are in sliding engagement.

[0020] Preferably, the scales of both the horizontal and vertical rulers are ≥20cm.

[0021] Preferably, the rigid base is a steel plate.

[0022] This invention has substantial features and advancements compared to existing technologies. Specifically, it utilizes a vertical ruler and a locking mechanism to measure the height of a concrete core sample, a horizontal ruler and a pointer to measure its diameter, and a horizontal ruler, an angle pointer, and a dial to measure the flatness of the upper surface of the concrete core sample. By integrating and coordinating different measuring tools, this device achieves rapid detection of the verticality and flatness of the concrete core sample, significantly improving detection efficiency compared to traditional separate detection methods. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the structure of a concrete core sample verticality and flatness measuring device according to this utility model.

[0024] In the diagram: 1. Rigid base; 2. Concrete core sample; 3. Horizontal ruler; 4. Horizontal ruler pointer; 5. Locking mechanism; 6. Vertical ruler; 7. Angle pointer; 8. Angle plate. Detailed Implementation

[0025] The technical solution of this utility model will be further described in detail below through specific embodiments.

[0026] like Figure 1As shown, a device for measuring the verticality and flatness of concrete core samples includes a rigid base 1, a vertical ruler 6, a horizontal ruler assembly, and an angle plate 8.

[0027] In this embodiment, the rigid base 1 is made of steel plate, and the upper surface of the rigid base 1 is a horizontal hard surface. The surface is polished smooth by a grinding process to place the concrete core sample 2. The bottom end of the vertical ruler 6 is fixed on the rigid base 1. The vertical ruler 6 is perpendicular to the horizontal hard surface and is used to indicate the overall height of the concrete core sample 2. Its scale is usually ≥20cm.

[0028] The ruler assembly includes a ruler 3, a ruler pointer 4, a locking mechanism 5, and an angle pointer 7.

[0029] In this embodiment, the horizontal ruler 3 is adjustablely fixed to the vertical ruler 6 via the locking mechanism 5. One long side of the horizontal ruler serves as the scale pointer of the vertical ruler. In this embodiment, the locking mechanism 5 is a sliding sleeve. The sliding sleeve is locked to the vertical ruler 6 by a bolt that is tightened laterally. During adjustment, the bolt is loosened, and the sliding sleeve slides between the vertical ruler to adjust the height. After adjustment, the sliding sleeve is locked to secure the sliding sleeve to the vertical ruler 6. The scale of the horizontal ruler is usually ≥20cm.

[0030] The horizontal ruler 3 is hinged to the locking mechanism 5. In this embodiment, the hinge position is selected at the tail end of the horizontal ruler 3, that is, at the junction of the horizontal ruler 3 and the angle pointer 7, so that the zero mark of the horizontal ruler 3 is aligned with the adjacent boundary of the vertical ruler 6.

[0031] The horizontal ruler 3 can be hinged to the locking mechanism 5 via a pin, or it can be hinged by rotating with a bolt that is tightened laterally. There are various hinge methods.

[0032] The horizontal ruler pointer 4 slides with the horizontal ruler 3 and serves as the scale pointer of the horizontal ruler. In other embodiments, in order to satisfy a more sufficient adjustment range, the horizontal ruler pointer 4 is designed as an adjustment structure including a horizontal ruler sliding sleeve and an adjustable pointer. The horizontal ruler sliding sleeve slides with the horizontal ruler, and the height of the adjustable pointer is adjustable, which can broaden the measurement range within a certain range.

[0033] The angle pointer 7 is fixed to the tail end of the horizontal ruler 3 and is on the same straight line as the horizontal ruler 3. The tail end of the angle pointer 7 is a pointed tip, which is used to point to the angle plate 8. The angle pointer 7 swings with the horizontal ruler 3.

[0034] The angle dial 8 is an angle indicator dial that works in conjunction with the angle pointer 7. It is essentially a protractor. The angle dial 8 is fixed together with the locking mechanism 5 and changes position as the locking mechanism 5 moves up and down.

[0035] In terms of specific design, the straight edge of the protractor is pressed against the vertical edge of the vertical ruler 6 to ensure the accuracy of the protractor itself. For easy adjustment, the straight edge of the protractor and the vertical edge of the vertical ruler are slidably engaged. A sliding engagement mechanism, such as a groove, can be provided accordingly.

[0036] Brief description of the measurement process:

[0037] First, place the measuring device horizontally to ensure the rigid base is level. If necessary, adjust it using a level.

[0038] The second step is to place the concrete core sample to be tested on the upper surface of the rigid base 1 and adjust its position to the range that the scale can measure.

[0039] The third step is to adjust the horizontal ruler to be level with the upper surface of the concrete core sample according to the overall height of the sample. When the horizontal ruler 3 touches the upper surface of the concrete core sample through the pointer 4, the horizontal ruler 3 should be in a horizontal state. If necessary, a level can be used for adjustment.

[0040] The fourth step is to read the height and diameter of the concrete core sample by using a vertical ruler, a horizontal ruler, and a pointer on the horizontal ruler.

[0041] Fifth, using the current measurement point as a reference, adjust the position of the ruler pointer. Due to the hinged relationship of the ruler, the ruler will jump to a certain extent when it encounters uneven areas. The amplitude of the jump is read by the angle plate and angle pointer at the rear end. Based on the overall length ratio of the ruler and the index of the scale, the flatness value can be calculated.

[0042] The above process constitutes the entire measurement process. After the measurement is completed, the concrete core sample is removed and the measuring device is returned to its original position.

[0043] Finally, it should be noted that: the preferred embodiments of this patent have been described in detail above, but this patent is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of this patent.

Claims

1. A device for measuring the verticality and flatness of concrete core samples, characterized in that: Includes a rigid base, vertical ruler, horizontal ruler assembly, and corner plate; The upper surface of the rigid base is a horizontal hard surface, and the bottom end of the vertical ruler is fixed to the rigid base. The vertical ruler is perpendicular to the horizontal hard surface. The horizontal ruler assembly includes a horizontal ruler, a horizontal ruler pointer, a locking mechanism, and an angle pointer. The horizontal ruler is adjustablely fixed to the vertical ruler via the locking mechanism. One of the long sides of the horizontal ruler serves as the scale pointer of the vertical ruler. The horizontal ruler and the locking mechanism are hinged together. The pointer of the horizontal ruler slides with the horizontal ruler and serves as the scale pointer of the horizontal ruler; The angle pointer is fixed to the end of the horizontal ruler and is on the same straight line as the horizontal ruler. The angle disc is an angle indicator disc that works in conjunction with the angle pointer, and the angle disc is fixed together with the locking mechanism.

2. The concrete core sample verticality and flatness measuring device according to claim 1, characterized in that: The tail end of the horizontal ruler is hinged to the locking mechanism, and the zero mark of the horizontal ruler is aligned with the adjacent boundary of the vertical ruler.

3. The concrete core sample verticality and flatness measuring device according to claim 2, characterized in that: The locking mechanism includes a sliding sleeve and a bolt for laterally tightening and fixing the sliding sleeve. The sliding sleeve is slidably engaged with the vertical ruler, and the bolt is used to press and lock the sliding sleeve and the vertical ruler together.

4. The concrete core sample verticality and flatness measuring device according to claim 3, characterized in that: The horizontal ruler pointer includes a horizontal ruler sliding sleeve and an adjustable pointer. The horizontal ruler sliding sleeve is in sliding engagement with the horizontal ruler, and the height of the adjustable pointer is adjustable.

5. The concrete core sample verticality and flatness measuring device according to claim 4, characterized in that: The end of the angle pointer is a pointed tip.

6. The concrete core sample verticality and flatness measuring device according to claim 5, characterized in that: The angle disc is a protractor.

7. The concrete core sample verticality and flatness measuring device according to claim 6, characterized in that: The straight edge of the protractor rests against the vertical edge of the vertical ruler.

8. The concrete core sample verticality and flatness measuring device according to claim 7, characterized in that: The straight edge of the protractor slides into contact with the vertical edge of the ruler.

9. The concrete core sample verticality and flatness measuring device according to claim 8, characterized in that: The scales on both the horizontal and vertical rulers are ≥20cm.

10. The concrete core sample verticality and flatness measuring device according to claim 9, characterized in that: The rigid base is a steel plate.

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