CN111336889A - Ribbed steel bar diameter comparison ruler and method - Google Patents

Abstract

The invention discloses a ribbed steel bar diameter comparison ruler and a method, which solve the problems of low detection accuracy of the steel bar diameter and relatively large damage to the structure in the prior art, and have the advantages of simple structure, convenient portability, and high speed and efficiency. The purpose of detecting the diameter of ribbed steel bars, the effect of high precision in field detection. The technical scheme is as follows: comprising a protective shell and a plurality of diameter comparison cards, one end of the diameter comparison card is inserted into the protective shell, and the diameter comparison card can rotate relative to the protective shell; The arc surface comparison groove corresponding to the arc surface of the steel bar is provided at the other end for the longitudinal rib comparison groove corresponding to the longitudinal rib of the ribbed steel bar; the surface of each diameter comparison card is provided with a diameter mark.

Description

A kind of ribbed steel bar diameter comparison ruler and method

technical field

The invention relates to the technical field of construction science, in particular to a ribbed steel bar diameter comparison ruler and a method.

Background technique

Ribbed steel bars are the skeleton of concrete structures and play a very important role. Due to the requirements of quality inspection or safety identification, the diameter of the steel bars in the concrete needs to be tested.

At present, there are two methods to detect the diameter of steel bars in concrete: non-destructive detection and direct detection. The inventor found that the non-damage detection uses the principle of electromagnetic induction to detect the diameter of the steel bar, and the accuracy is low. The direct detection method needs to remove the concrete protective layer and intercept a certain length of steel bars for weighing, which has a large damage to the structure.

SUMMARY OF THE INVENTION

In view of the deficiencies in the prior art, the first purpose of the present invention is to provide a ribbed steel bar diameter comparison ruler, which has a simple structure and is easy to carry, and can achieve the purpose of quickly and efficiently detecting the diameter of the ribbed steel bar.

The second object of the present invention is to provide a method for comparing the diameters of ribbed steel bars, which requires only a small part of the ribbed steel bars to be exposed, the damage is small, the repair is easy, the comparison is convenient, and the on-site detection accuracy is high.

In order to achieve the above object, the present invention is realized by the following technical solutions:

In a first aspect, an embodiment of the present invention provides a ribbed steel bar diameter comparison ruler, comprising a protective shell and a plurality of diameter comparison cards, one end of the diameter comparison card is inserted into the protective shell, and the diameter comparison card can be relatively protected. shell rotation;

One end of the diameter comparison card is provided with an arc surface comparison groove corresponding to the arc surface of the ribbed steel bar, and the other end is provided with a longitudinal rib comparison groove corresponding to the longitudinal rib of the ribbed steel bar; each diameter comparison card The surface sets the diameter identification.

In the second aspect, the embodiment of the present invention also provides a method for comparing the diameters of ribbed steel bars, using the ribbed steel bar diameter comparison ruler, including:

Pick and chisel the concrete protective layer to expose the ribbed steel bars;

When the exposed surface of the ribbed steel bar is a curved surface, unscrew the end of the diameter comparison card with the curved surface comparison groove to press against the curved surface of the steel bar; use the curved surface comparison grooves of different sizes to compare until the curved surface is compared. The groove fits perfectly with the arc surface;

When the exposed surface of the steel bar is a longitudinal rib, unscrew the end of the diameter ratio card with the longitudinal rib ratio slot, press the longitudinal rib of the steel bar, and use the longitudinal rib ratio slot of different sizes to compare the slot; until the longitudinal rib ratio slot is the same as Longitudinal ribs fit perfectly.

The beneficial effects of the above embodiments of the present invention are as follows:

(1) The comparison ruler of one or more embodiments of the present invention only mainly includes a protective shell and a plurality of diameter comparison cards, which has a simple structure and is easy to carry;

(2) The diameter comparison card of one or more embodiments of the present invention is provided with an arc surface comparison groove at one end and a longitudinal rib comparison groove at the other end, and the diameter comparison card only needs to be rotated out of a certain angle to the arc of the ribbed steel bar. The surface or longitudinal rib can be compared, and the operation is convenient;

(3) In one or more embodiments of the present invention, a plurality of diameter comparison cards are set according to the diameter of the standard ribbed steel bar, and the size of each arc surface comparison groove and longitudinal rib comparison groove is the same as the standard size of the corresponding part of the ribbed steel bar The same, can improve the detection accuracy;

(4) When comparing one or more embodiments of the present invention, the concrete protective layer is first chiseled to expose a small part of the ribbed steel bars, the damage to the structure is small, and the repair is easy.

Description of drawings

The accompanying drawings forming a part of the present invention are used to provide further understanding of the present invention, and the exemplary embodiments of the present invention and their descriptions are used to explain the present invention, and do not constitute an improper limitation of the present invention.

FIG. 1 is a top view of the present invention in accordance with one or more embodiments;

2 is a front view of the present invention according to one or more embodiments;

3 is a side view of the present invention according to one or more embodiments;

Figures 4(a)-4(d) are schematic diagrams of the structure of the diameter comparison card corresponding to different diameter steel bars according to one or more embodiments of the present invention;

5-7 are structural schematic diagrams of contrasting ribbed steel bars using different diameter comparison cards according to one or more embodiments of the present invention;

8 is a schematic diagram of on-site detection according to one or more embodiments of the present invention;

Among them, 1. Diameter comparison card; 2. Rotating shaft; 3. Curved surface comparison groove; 4. Longitudinal rib comparison groove; 5. Diameter identification; 6. Protective shell; 7. Diameter identification; 8. Ribbed steel bar; 9. Concrete; 10. Chisel position.

Detailed ways

It should be noted that the following detailed description is exemplary and intended to provide further explanation of the application. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.

It should be noted that the terminology used herein is for the purpose of describing specific embodiments only, and is not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly dictates otherwise, the singular is intended to include the plural as well, furthermore, it is to be understood that when the terms "comprising" and/or "including" are used in this specification, it indicates that the presence of features, steps, operations, devices, components and/or combinations thereof;

For the convenience of description, if the words "up", "down", "left" and "right" appear in this application, it only means that the directions of up, down, left and right are consistent with the drawings themselves, and do not limit the structure. It is to facilitate the description of the present invention and to simplify the description, rather than indicating or implying that the device or element referred to must have a particular orientation, be constructed and operate in a particular orientation, and therefore should not be construed as a limitation on the application.

Terminology explanation part: Terms such as "installation", "connection", "connection", "fixation" in this application should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integrated; It can be a direct connection, or an indirect connection through an intermediate medium, an internal connection between two elements, or an interaction relationship between two elements. specific meaning.

As described in the background art, in the prior art, the detection accuracy of the steel bar diameter is not high, and the structure is greatly damaged. In order to solve the above technical problems, the present invention proposes a ribbed steel bar diameter comparison ruler and method. .

Example 1:

The present invention will be described in detail below in conjunction with accompanying drawings 1 to 8. Specifically, the structure is as follows:

This embodiment provides a ribbed steel bar diameter comparison ruler, which includes a protective shell 6 and a plurality of diameter comparison cards 1. One end of the diameter comparison card 1 is inserted into the protective shell 6, and the diameter comparison card 1 can be relatively protected. Shell 6 rotates.

In this embodiment, as shown in FIG. 1 to FIG. 3 , the protective shell 6 has a U-shaped structure, and the diameter comparison card 1 is inserted therein to protect the diameter comparison card 1 . It can be understood that in other embodiments, the protective shell 6 may also be of other structures, as long as the diameter comparison card 1 can be screwed in and out of the protective shell 6 .

A plurality of diameter comparison cards 1 are set according to the diameter of the steel bars, and are arranged in the order of the corresponding diameters; the number of diameter comparison cards 1 can be set according to the actual steel bar diameter. The diameter comparison card 1 is made of lightweight materials.

In national standards, the nominal diameters of commonly used ribbed steel bars 8 are 6mm, 8mm, 10mm, 12mm, 14mm, 16mm, 18mm, 20mm, 22mm, 25mm, 28mm, 32mm, etc. All have standard sizes. In this embodiment, 12 diameter comparison cards 1 are provided, corresponding to common ribbed steel bars 8 with a diameter of 6 mm to 32 mm respectively.

In this embodiment, the longitudinal section of the diameter ratio card 1 is rectangular. It can be understood that, in other embodiments, the diameter ratio card 1 can also be in other shapes, for example, an ellipse in longitudinal section. As shown in Fig. 4(a)-Fig. 4(d), a diameter mark 5 is set on the surface of the diameter comparison card 1, so as to obtain the corresponding size of the steel bar to be measured. For the convenience of reading, diameter markers 5 are provided on both ends of the upper and lower surfaces of the diameter comparison card 1 . In this embodiment, the diameter identification 5 is a number.

The diameter comparison card 1 is provided with an arc surface comparison groove 3 at one end, and a longitudinal rib comparison groove 4 at the other end. The diameter mark 5 is arranged near the arc surface comparison groove 3 and the longitudinal rib comparison groove 4 . The dimensions of the arc surface comparison groove 3 and the longitudinal rib comparison groove 4 set in each diameter comparison card 1 are the same as the standard size of the corresponding part of the ribbed steel bar 8; that is, the size of the arc surface comparison groove 3 is the same as The arc surface of the ribbed steel bar 8 under the corresponding nominal diameter is matched, and the size of the longitudinal rib ratio groove 4 is matched with the longitudinal rib size of the ribbed steel bar 8 under the corresponding nominal diameter.

The diameter comparison card 1 is inserted into the U-shaped space of the protective shell 6 to set a length. As shown in FIG. 2 and FIG. 3 , the diameter comparison card 1 and the protective shell 6 are connected through a rotating shaft 2; The diameter comparison card 1 and the protective shell 6 are clearance fit.

Embodiment 2:

This embodiment provides a method for comparing the diameters of ribbed steel bars, using the ribbed steel bar diameter comparison ruler shown in Embodiment 1, including:

As shown in Fig. 6, the protective layer of concrete 9 is chiseled to expose a small part of ribbed steel bars 8;

When the exposed surface of the ribbed steel bar 8 is an arc surface, unscrew the end of the diameter comparison card 1 with the arc surface comparison groove 3 to abut against the arc surface of the steel bar. As shown in Fig. 5-Fig. 7, the cambered surfaces of different diameters are used to compare the grooves 3. When the cambered surfaces are compared to the grooves 3 and the cambered surfaces are completely matched, the diameter of the steel bar to be measured is the one identified by the diameter comparison card 1. diameter.

When the exposed surface of the steel bar is a longitudinal rib, unscrew the end of the diameter comparison card 1 with the longitudinal rib comparison groove 4, press against the longitudinal rib of the steel bar, and use the longitudinal rib comparison groove 4 of different diameters to compare. When the longitudinal rib comparison groove 4 is completely in line with the longitudinal rib, the diameter of the steel bar to be measured is the diameter marked by the diameter comparison card 1.

Record the diameter of the ribbed steel bar 8, and the detection is completed.

The above descriptions are only preferred embodiments of the present application, and are not intended to limit the present application. For those skilled in the art, the present application may have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of this application shall be included within the protection scope of this application.

Claims (10)

1. The ribbed steel bar diameter comparison ruler is characterized by comprising a protective shell and a plurality of diameter ratio pair clamps, wherein one ends of the diameter ratio pair clamps are inserted into the protective shell, and the diameter ratio pair clamps can rotate relative to the protective shell;

one end of the diameter ratio matching clamp is provided with a cambered surface matching groove corresponding to the cambered surface of the ribbed steel bar, and the other end of the diameter ratio matching clamp is provided with a longitudinal rib matching groove corresponding to the longitudinal rib of the ribbed steel bar; each diameter ratio provides a diameter identification for the card surface.

2. The ribbed steel bar diameter comparison ruler according to claim 1, wherein the diameter ratio pair clips are arranged in a plurality according to standard steel bar diameters and are arranged in a corresponding diameter size sequence.

3. The ribbed bar diameter comparison ruler of claim 1, wherein the dimension of the cambered surface comparison groove and the longitudinal rib comparison groove of each diameter ratio comparison card is the same as the standard dimension of the corresponding part of the ribbed bar.

4. The ribbed bar diameter comparison ruler of claim 1, wherein diameter marks are arranged at both ends of the diameter ratio comparison clamping surface.

5. The ribbed bar diameter comparison ruler of claim 1, wherein the diameter ratio comparison clamp is connected with the protective shell through a rotating shaft.

6. The ribbed bar diameter comparison ruler of claim 5, wherein the rotating shaft is in clearance fit with the diameter comparison clamp and the protective shell.

7. The ribbed bar diameter comparison ruler of claim 5, wherein the rotation axis is perpendicular to the diameter comparison clamp.

8. The ribbed bar diameter comparison ruler of claim 1, wherein the protective shell is of a U-shaped structure.

9. A method for comparing the diameters of the ribbed bars, which is characterized in that the diameter comparison ruler of the ribbed bars according to any one of claims 1-8 is adopted, and comprises the following steps:

picking and chiseling the concrete protective layer to expose the ribbed steel bars;

when the exposed surface of the ribbed steel bar is a cambered surface, screwing out one end with the diameter ratio opposite to the cambered surface opposite to the groove to prop against the cambered surface of the steel bar; comparing the cambered surface comparison grooves with different sizes until the cambered surface comparison grooves are completely matched with the cambered surface;

when the exposed surface of the steel bar is a longitudinal rib, screwing out one end with the diameter ratio of the longitudinal rib comparison groove of the counter clamp to abut against the longitudinal rib of the steel bar, and comparing the longitudinal rib comparison grooves with different sizes; until the longitudinal rib is completely matched with the longitudinal rib by the longitudinal rib comparison groove.

10. The method for comparing the diameters of the ribbed steel bars according to claim 9, wherein the diameters of the ribbed steel bars are recorded when the arc-surface comparison groove is completely matched with the arc surface/the longitudinal rib comparison groove is completely matched with the longitudinal rib.

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