CN216209167U

CN216209167U - Detection device for concrete

Info

Publication number: CN216209167U
Application number: CN202122744171.3U
Authority: CN
Inventors: 高建新; 王海龙; 杜安矞; 范士彬; 赵会林; 沈方奇; 冯国文; 高世坤; 阳洋; 李琪; 张小鹏; 景晓雄
Original assignee: CCCC First Highway Engineering Co Ltd; No 2 Engineering Co Ltd of CCCC First Highway Engineering Co Ltd
Current assignee: CCCC First Highway Engineering Co Ltd; No 2 Engineering Co Ltd of CCCC First Highway Engineering Co Ltd
Priority date: 2021-11-10
Filing date: 2021-11-10
Publication date: 2022-04-05
Anticipated expiration: 2031-11-10

Abstract

The application relates to a detection device for concrete, it includes: a substrate; the slump bucket is detachably arranged on the base plate; the first detection mechanism comprises a fixed scaling rule which is detachably arranged on the base plate or the slump bucket and a horizontal folding piece movably connected with the fixed scaling rule, and the horizontal folding piece can move in the vertical direction relative to the fixed scaling rule. The detection device enables the measurement of the concrete expansion degree to be simple and easy, and the concrete expansion degree result is high in accuracy. The slump and the expansion of the concrete can be accurately detected.

Description

Detection device for concrete

Technical Field

The application relates to a detection device for concrete belongs to building concrete detection area.

Background

Slump mainly refers to the plasticizing performance and pumpability of concrete, namely the workability of the concrete, and particularly ensures the normal operation of construction, including the water retention, the fluidity and the cohesiveness of the concrete. The slump is measured by a quantitative index, and is used for judging whether the construction can be normally carried out. Workability refers to the property of whether concrete is easy to construct and operate and is uniform and compact, and is a very comprehensive property, including fluidity, cohesiveness and water-retaining property. The influence on the concrete slump mainly comprises grading change, water consumption per unit volume, water-cement ratio, sand rate, cement variety, aggregate condition, time and temperature, weighing deviation of a weighing apparatus, the dosage of an additive and the like.

At present, no determination method capable of comprehensively reflecting the workability of concrete mixtures exists. Slump tests are commonly performed on the site and in the laboratory to determine the fluidity of the blend, with visual experience to assess cohesiveness and water retention. Moreover, the traditional slump test method generally comprises the steps that horizontal and vertical detection cannot be guaranteed when the slump test method is operated on a cement bottom plate or a common iron plate, a plurality of rulers are used for manual measurement, and the measurement results of the levelness and the concrete slump diameter are inaccurate, so that a large detection error is caused.

Based on this, the technical scheme of this application is specifically proposed.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a concrete detection device which can accurately detect the slump and the expansion of concrete.

In order to achieve the purpose, the application provides the following technical scheme: a testing device for concrete comprising:

a substrate;

the slump bucket is detachably arranged on the base plate;

the first detection mechanism comprises a fixed scaling rule which is detachably arranged on the base plate or the slump bucket and a horizontal folding piece movably connected with the fixed scaling rule, and the horizontal folding piece can move in the vertical direction relative to the fixed scaling rule.

Further, the horizontal folding piece comprises a first end connected with the fixed scaling rule and a second end used for contacting concrete in the slump barrel, and the first end is connected with the fixed scaling rule through a movable fixing piece.

Furthermore, a U-shaped groove is formed in the fixed calibration scale, and the movable fixing piece comprises a fixing knob arranged on the U-shaped groove and a stop knob connected with the fixed calibration scale and the horizontal folding piece.

Further, the detection device further comprises a horizontal adjusting mechanism, and the horizontal adjusting mechanism is arranged on the base plate and used for leveling the base plate.

Further, the horizontal adjusting mechanism comprises a height adjusting piece arranged on the circumferential direction of the base plate and a level gauge arranged on the base plate.

Further, the height adjusting piece is an adjusting screw which penetrates through the base plate, and the horizontal adjusting mechanism comprises at least four adjusting screws which are respectively arranged at four corners of the base plate.

Further, detection device still includes second detection mechanism, second detection mechanism is including setting up a plurality of concentric circles scale and longitudinal scale on the base plate, a plurality of the concentric circles scale with the center of base plate sets up to the periphery as the centre of a circle.

Further, the smallest division value of the concentric circle scale and/or the longitudinal scale is 50 mm.

Furthermore, still be equipped with on the base plate and carry out spacing stop gear to the slump bucket.

Further, the slump bucket includes the staving, sets up funnel and tamper on the staving, the length of tamper is greater than the height of staving and funnel.

Compared with the prior art, the beneficial effect of this application lies in: the application provides a detection device for concrete, which effectively utilizes a fixed calibration scale and a horizontal folding piece, so that the measurement of the height difference of the fixed calibration scale (the maximum value-the fixed calibration scale value) is simple and easy, and the accuracy of the measurement result is high; and the longitudinal scale and the concentric circle scale arranged on the substrate are utilized, so that the measurement of the concrete expansion degree is simple and easy, and the concrete expansion degree result is high in accuracy. The slump and the expansion of the concrete can be accurately detected.

The foregoing description is only an overview of the technical solutions of the present invention, and in order to make the technical solutions of the present invention more clearly understood and to implement them in accordance with the contents of the description, the following detailed description is given with reference to the preferred embodiments of the present invention and the accompanying drawings.

Drawings

Fig. 1 is a schematic structural diagram of a substrate in a detection apparatus according to an embodiment of the present application;

fig. 2 is a schematic structural view of a fixed scale and a horizontal flap in the detection apparatus according to an embodiment of the present application;

fig. 3 is a schematic structural diagram of a slump cone in the detection device according to an embodiment of the present application.

Detailed Description

The following detailed description of embodiments of the present invention is provided in connection with the accompanying drawings and examples. The following examples are intended to illustrate the utility model but are not intended to limit the scope of the utility model.

It should be noted that: the terms "upper", "lower", "left", "right", "inner" and "outer" of the present invention are used for describing the present invention with reference to the drawings, and are not intended to be limiting terms.

In the description of the present application, it is noted that, unless explicitly stated or limited otherwise, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusions. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to only those steps or elements listed, but may alternatively include other steps or elements not listed, or inherent to such process, method, article, or apparatus. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art. Further, in the description of the present application, "a plurality" means two or more unless otherwise specified. "and/or" describes the association relationship of the associated objects, meaning that there may be three relationships, e.g., a and/or B, which may mean: a exists alone, A and B exist simultaneously, and B exists alone. The character "/" generally indicates that the former and latter associated objects are in an "or" relationship.

The terms "first," "second," "third," and the like in the description and claims of this application and in the above-described drawings are used for distinguishing between different objects and not for describing a particular order. Furthermore, the terms "include" and "have," as well as any variations thereof, are intended to cover non-exclusive inclusions. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to only those steps or elements listed, but may alternatively include other steps or elements not listed, or inherent to such process, method, article, or apparatus.

Fig. 1 to 3 schematically show a detection apparatus for concrete, which includes a base plate 1, a slump bucket 2, and a first detection mechanism 3, wherein the slump bucket 2 is detachably provided on the base plate 1; the first detection mechanism 3 comprises a fixed calibration ruler 31 detachably arranged on the base plate 1 or the slump bucket 2 and a horizontal folding piece 32 movably connected with the fixed calibration ruler 31, wherein the horizontal folding piece 32 can move in the vertical direction relative to the fixed calibration ruler 31.

Optionally, the substrate 1 is made of metal, preferably aluminum or aluminum alloy.

In this embodiment, the horizontal flap 32 includes a first end connected to the fixed scale 31 and a second end for contacting concrete in the slump cone 2, and the first end is connected to the fixed scale 31 by a movable fixing member 33. Specifically, one end of the fixed scaling rule 31 is provided with a U-shaped groove, and the movable fixing member 33 includes a fixing knob disposed on the U-shaped groove and a stop knob connecting the fixed scaling rule 31 and the horizontal folding piece 32; the other end of the fixed scale 31 may be connected to the bolt buckle 11 of the base plate 1 by providing a lead screw 34.

Optionally, the fixed calibration ruler 31 is made of metal, preferably aluminum or aluminum alloy.

In this embodiment, the detection apparatus further includes a horizontal adjustment mechanism 4, and the horizontal adjustment mechanism 4 is disposed on the substrate 1, so as to level the substrate 1. Specifically, the horizontal adjustment mechanism 4 includes a height adjustment member 41 provided on the circumferential direction of the base plate 1 and a level 42 provided on the base plate 1. The height adjusting member 41 is an adjusting screw that penetrates through the substrate 1, and the horizontal adjusting mechanism 4 includes at least four adjusting screws that are respectively disposed at four corners of the substrate 1. Alternatively, the level 42 is a level bubble device, which may be secured by providing level bubbles on opposite sides of the substrate 1.

In this embodiment, the detecting device further includes a second detecting mechanism 5, the second detecting mechanism 5 includes a plurality of concentric circle scales 51 and a longitudinal scale 52 arranged on the substrate 1, and the concentric circle scales 51 are arranged around the center of the substrate 1.

Optionally, the minimum division value of the concentric circle scale 51 and/or the longitudinal scale 52 is 50mm to ensure the detection accuracy.

Optionally, still be equipped with on the base plate 1 right slump bucket 2 carries out spacing stop gear to avoid slump bucket 2 to produce the displacement at the in-process that detects the muddy earth, thereby cause the influence to detecting the structure.

In this embodiment, the slump cone 2 comprises a cone body 21, a funnel 22 and a tamper 23 which are arranged on the cone body 21, wherein the length of the tamper 23 is greater than the height of the cone body 21 and the funnel 22. Optionally, the barrel body 21 and the funnel 22 of the slump barrel 2 may be made of metal, and a handle 24 may be further disposed on the outer side of the barrel body 21.

The working principle of the detection device is as follows:

when the leveling device is used, the base plate is placed at a horizontal position, and if the level instrument displays that the base plate is not in a horizontal state, the leveling is carried out through the height adjusting piece. Fixing a fixed calibration scale on a base plate, placing a slump bucket with a wet inner wall in the center of the base plate, keeping the position fixed, uniformly loading the mixed concrete sample into the bucket in three layers, enabling the height of each layer to be about 1/3 of the height of the bucket after tamping, uniformly inserting and tamping each layer on the cross section by using tamping rods from the outside to the center along the spiral direction for 25 times, enabling the tamping rods to penetrate through the whole depth until the poured concrete inserted into the top layer is higher than a bucket opening, scraping off redundant concrete, and trowelling, and completing the whole process within 140 s. And then removing the concrete on the base plate at the side of the slump bucket, and vertically and stably lifting the truncated cone bucket by the lifting handle within 5-10 s. And removing the empty slump bucket, sliding the horizontal folding piece of the first detection mechanism, fastening the calibration scale on the fixed calibration scale by using a fixed knob, moving the horizontal folding piece up and down to enable the horizontal bottom surface of the horizontal folding piece to be just contacted with the top end of the concrete specimen, fastening the sliding table by using a stop knob, measuring the height of the highest point of the concrete specimen (300 mm-the value of the fixed calibration scale), and reading the data of the fixed calibration scale, namely the slump value of the concrete mixture.

When the slump of the concrete mixture is more than 220mm, the value of the expanded concrete sample is measured by the concentric circle scale on the base plate and the longitudinal scale, and under the condition that the difference between the two diameters is less than 50mm, the arithmetic mean value is used as the slump expansion value.

In summary, the following steps: the application provides a detection device for concrete, which effectively utilizes a fixed calibration scale and a horizontal folding piece, so that the measurement of the height difference of the fixed calibration scale (the maximum value-the fixed calibration scale value) is simple and easy, and the accuracy of the measurement result is high; and the longitudinal scale and the concentric circle scale arranged on the substrate are utilized, so that the measurement of the concrete expansion degree is simple and easy, and the concrete expansion degree result is high in accuracy. The slump and the expansion of the concrete can be accurately detected.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the utility model. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

1. a detection device for concrete, characterized in that, comprising:

substrate;

a slump bucket, detachably arranged on the base plate;

The first detection mechanism includes a fixed calibration ruler detachably arranged on the base plate or the slump bucket and a horizontal flap movably connected with the fixed calibration ruler, and the horizontal flap can be calibrated relative to the fixed calibration ruler The ruler moves in the vertical direction.

2 . The detection device according to claim 1 , wherein the horizontal flap comprises a first end connected to the fixed calibration ruler and a second end for contacting the concrete in the slump bucket. 3 . The first end is connected with the fixed scale through a movable fixing piece.

3. The detection device according to claim 2, characterized in that, a U-shaped groove is provided on the fixed calibration ruler, and the movable fixing member comprises a fixed knob arranged on the U-shaped groove and is connected to the fixed calibration ruler. and stop knobs for horizontal flaps.

4 . The detection device according to claim 1 , wherein the detection device further comprises a level adjustment mechanism, and the level adjustment mechanism is provided on the base plate for leveling the base plate. 5 .

5 . The detection device according to claim 4 , wherein the level adjustment mechanism comprises a height adjustment member disposed in the circumferential direction of the base plate and a level instrument disposed on the base plate. 6 .

6 . The detection device according to claim 5 , wherein the height adjustment member is an adjustment screw disposed through the base plate, and the level adjustment mechanism comprises at least four screws respectively disposed at four corners of the base plate. 7 . the adjusting screw.

7 . The detection device according to claim 1 , wherein the detection device further comprises a second detection mechanism, and the second detection mechanism comprises a plurality of concentric circle scales and longitudinal scales arranged on the base plate, and a plurality of The concentric circle scales are arranged toward the periphery with the center of the base plate as the center of the circle.

8 . The detection device according to claim 7 , wherein the minimum division value of the concentric circle scale and/or the longitudinal scale is 50 mm. 9 .

9 . The detection device according to claim 1 , wherein the base plate is further provided with a limiting mechanism for limiting the position of the slump bucket. 10 .

10 . The detection device according to claim 1 , wherein the slump bucket comprises a bucket body, a funnel arranged on the bucket body, and a tamper, and the length of the tamper is longer than the bucket body. 11 . and the height of the funnel.