Mortar strength detection device

Abstract

The utility model discloses a mortar strength detection device. The mortar strength detection device comprises a mortar strength detector body, a fixing sleeve and a positioning assembly, the fixed sleeve is arranged at one end, close to a measuring nail, of the mortar strength detector body; the positioning assembly comprises a plurality of supporting strips arranged on the fixing sleeve, an adjusting installation sleeve is arranged at the end, away from the fixing sleeve, of each supporting strip, and a positioning screw is installed on each adjusting installation sleeve in a threaded mode. After the mortar strength detector body disclosed by the utility model is positioned through the positioning assembly, the probe can penetrate into a masonry in a manner of being vertical to the section of the mortar, so that the measurement error caused by the fact that the probe penetrates into the masonry due to inclined holding when the mortar strength detector body is directly used is reduced, and the accuracy of mortar strength detection data is effectively ensured.

Description

Technical Field

[0001] The utility model relates to the field of engineering detection, in particular to a mortar strength detection device. Background Art

[0002] The mortar strength tester uses a mechanical penetration method to detect the compressive strength of the mortar by measuring the penetration depth of the nail. When testing the mortar strength, 16 measuring points are generally taken for testing through the mortar strength tester. In the test data, the 3 larger values ​​and 3 smaller values ​​of the 16 nail penetration depth values ​​detected by the mortar strength tester should be removed, and the remaining 10 penetration depth values ​​should be averaged. According to the calculated average penetration depth of the nail, the mortar compressive strength conversion value can be found in the appendix of "Technical Code for Testing the Compressive Strength of Masonry Mortar by Penetration Method I" (JGJ / T136-2001) according to different mortar types. Special strength test curves can be established for testing of other types of mortar. When there is a special strength test curve, the calculation of the mortar compressive strength conversion value should give priority to the special strength test curve.

[0003] At present, during the mortar strength test, the mortar strength tester is generally held by the tester to test the mortar strength. When the tester's holding direction is offset, the probe may penetrate into the masonry, thereby affecting the accuracy of the mortar strength test. Utility Model Content

[0004] The purpose of the utility model is to provide a mortar strength detection device to achieve stable positioning of a mortar strength detector and ensure the accuracy of mortar strength detection data.

[0005] In order to solve the above technical problems, the utility model provides a mortar strength detection device, including a mortar strength detection instrument body, a fixing sleeve and a positioning assembly;

[0006] The fixing sleeve is arranged at one end of the mortar strength tester body close to the measuring pin;

[0007] The positioning assembly comprises a plurality of support bars arranged on the fixing sleeve, an adjusting mounting sleeve is arranged at one end of the support bar away from the fixing sleeve, and a positioning screw is threadedly mounted on the adjusting mounting sleeve.

[0008] Furthermore, a positioning hole is provided through the fixing sleeve, and the end of the mortar strength tester body close to the measuring pin can slide along the inner wall of the positioning hole.

[0009] Furthermore, at least three support bars are provided, and the three support bars are not located in the same plane.

[0010] Furthermore, the end of the support bar is rotatably mounted on the fixing sleeve via a rotating shaft, and the fixing sleeve is provided with a limiting portion for limiting the rotation angle of the support bar.

[0011] Furthermore, when the support bar is rotated to fit with the limiting portion, the central axis of the support bar along its length direction and the central axis of the measuring pin of the mortar strength tester body along its length direction are perpendicular to each other.

[0012] Furthermore, a support base is fixedly provided at the end of the positioning screw, and the support base is located at an end of the positioning screw away from the adjustment mounting sleeve.

[0013] Furthermore, a locking knob is threadedly mounted on the positioning screw, and the locking knob is located between the adjustment mounting sleeve and the support base.

[0014] Compared with the prior art, the utility model has at least the following beneficial effects:

[0015] After the mortar strength tester body of the utility model is positioned by the positioning assembly, the measuring needle can penetrate perpendicularly to the mortar cross section, reducing the measurement error caused by the measuring needle penetrating into the masonry due to tilted holding when the mortar strength tester body is directly used, and effectively ensuring the accuracy of the mortar strength test data. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the overall structure of the mortar strength detection device of the utility model;

[0017] Figure 2 This is a schematic diagram of the support bar installation structure of the mortar strength detection device of the utility model. DETAILED DESCRIPTION

[0018] The mortar strength detection device of the present invention will be described in more detail below in conjunction with a schematic diagram, wherein a preferred embodiment of the present invention is shown. It should be understood that those skilled in the art can modify the present invention described herein while still achieving the advantageous effects of the present invention. Therefore, the following description should be understood as being widely known to those skilled in the art, and not as a limitation to the present invention.

[0019] The present invention is described in more detail in the following paragraphs by way of example with reference to the accompanying drawings. The advantages and features of the present invention will become more apparent from the following description and claims. It should be noted that the accompanying drawings are in very simplified form and in non-precise proportions, and are only used to conveniently and clearly assist in explaining the purpose of the embodiments of the present invention.

[0020] like Figure 1 and Figure 2As shown, an embodiment of the utility model provides a mortar strength detection device, including a mortar strength detection instrument body 1, a fixing sleeve 2 and a positioning assembly.

[0021] Specifically, the fixing sleeve 2 is arranged at one end of the mortar strength tester body 1 close to the measuring pin.

[0022] The positioning assembly includes a plurality of support bars 3 arranged on the fixing sleeve 2 , an adjustment sleeve 4 is arranged at one end of the support bar 3 away from the fixing sleeve 2 , and a positioning screw 5 is threadedly installed on the adjustment sleeve 4 .

[0023] In this embodiment, the positioning screw 5 is first rotated so that the end face of the adjusting screw away from the adjusting mounting sleeve 4 is in contact with the masonry wall surface, and then the end of the mortar strength tester body 1 close to the measuring nail is inserted into the fixing sleeve 2, and the mortar strength tester body 1 is pressed so that the measuring needle is closely in contact with the mortar gap surface of the masonry, and finally the trigger handle of the mortar strength tester body 1 is pressed to insert the measuring needle into the mortar. Finally, the mortar strength is calculated based on the relationship between the penetration depth of the measuring needle and the compressive strength of the mortar.

[0024] Compared with the prior art, after the mortar strength tester body 1 is positioned by the positioning assembly, the measuring needle can penetrate vertically into the mortar cross-section, reducing the measurement error caused by the measuring needle penetrating into the masonry due to tilted holding when the mortar strength tester body 1 is directly used, and effectively ensuring the accuracy of the mortar strength test data.

[0025] In a specific embodiment, a positioning hole 6 is provided through the fixing sleeve 2, and the end of the mortar strength tester body 1 close to the measuring pin can slide along the inner wall of the positioning hole 6. After the positioning assembly is adjusted, the measuring pin is always perpendicular to the mortar gap surface during the movement of the mortar strength tester body 1 along the positioning hole 6, which effectively ensures that the measuring pin penetrates vertically into the mortar, thereby ensuring the accuracy of the mortar strength test data.

[0026] In addition, at least three support bars 3 are provided, and the three support bars 3 are not located in the same plane. At least three support bars 3 cooperate with the adjustment installation sleeve 4 and the positioning screw 5 to ensure the stable support of the fixing sleeve 2, thereby ensuring the stability of the mortar strength tester body 1 when inserted and used.

[0027] Furthermore, the end of the support bar 3 is rotatably mounted on the fixing sleeve 2 via a rotating shaft, and the fixing sleeve 2 is provided with a limiting portion 7 for limiting the rotation angle of the support bar 3 .

[0028] Specifically, when the support bar 3 is rotated to fit with the limit portion 7, the central axis of the support bar 3 along its length direction is perpendicular to the central axis of the measuring pin of the mortar strength tester body 1 along its length direction. The rotatable angle range of the support bar 3 is 0° to 180°:

[0029] When the support bar 3 is rotated away from one end of the rotating shaft to the middle of the limiting part 7 and fits in, the support bar 3 is in a storage state, which is convenient for storing the positioning assembly and the fixing sleeve 2.

[0030] When the support bar 3 is rotated away from one end of the rotating shaft to the outside of the limit part 7 and fits in place, the support bar 3 is in a working state. The position of the fixing sleeve 2 is corrected by rotating the positioning screw 5, thereby ensuring that when the mortar strength tester body 1 is inserted into the fixing sleeve 2 and moved, the measuring pin is always perpendicular to the mortar gap surface.

[0031] In order to facilitate calibration of the position of the fixing sleeve 2, a support base 8 is fixedly provided at the end of the positioning screw 5, and the support base 8 is located at the end of the positioning screw 5 away from the adjustment and installation sleeve 4. Compared with the positioning screw 5, the support base 8 has a larger contact area with the masonry surface, which facilitates the fitting adjustment of the support base 8 and the masonry surface, and can also provide stable support.

[0032] Furthermore, a locking knob 9 is threadedly mounted on the positioning screw 5 , and the locking knob 9 is located between the adjustment mounting sleeve 4 and the support base 8 .

[0033] Specifically, after the position adjustment of the positioning screw 5 is completed, the locking knob 9 is rotated until it fits with the adjustment mounting sleeve 4, which can effectively prevent the positioning screw 5 from rotating when pressed, thereby effectively reducing the error caused by the position offset of the fixing sleeve 2 caused by the rotation of the positioning screw 5.

[0034] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A mortar strength detection device, characterized in that: It includes a mortar strength tester body, a fixing sleeve and a positioning component; The fixing sleeve is arranged at one end of the mortar strength tester body close to the measuring pin; The positioning assembly comprises a plurality of support bars arranged on the fixing sleeve, an adjusting mounting sleeve is arranged at one end of the support bar away from the fixing sleeve, and a positioning screw is threadedly mounted on the adjusting mounting sleeve.

2. The mortar strength detection device according to claim 1, characterized in that: The fixing sleeve is provided with a positioning hole, and the end of the mortar strength tester body close to the measuring pin can slide along the inner wall of the positioning hole.

3. The mortar strength detection device according to claim 1, characterized in that: At least three support bars are provided, and the three support bars are not located in the same plane.

4. The mortar strength detection device according to claim 1, characterized in that: The end of the support bar is rotatably mounted on the fixing sleeve via a rotating shaft, and a limiting portion for limiting the rotation angle of the support bar is provided on the fixing sleeve.

5. The mortar strength detection device according to claim 4, characterized in that: When the support bar is rotated to fit with the limiting portion, the central axis of the support bar along its length direction and the central axis of the measuring pin of the mortar strength tester body along its length direction are perpendicular to each other.

6. The mortar strength detection device according to claim 1, characterized in that: A support base is fixedly arranged at the end of the positioning screw, and the support base is located at an end of the positioning screw away from the adjustment mounting sleeve.

7. The mortar strength detection device according to claim 6, characterized in that: A locking knob is threadedly mounted on the positioning screw, and the locking knob is located between the adjustment mounting sleeve and the support base.

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