CN215641269U

CN215641269U - Concrete slump detection device

Info

Publication number: CN215641269U
Application number: CN202121856572.1U
Authority: CN
Inventors: 李莹莹; 胡永成; 隗收; 郭丹; 叶盛; 张鹏冲; 张嘉伟
Original assignee: Sinohydro Bureau 12 Co Ltd
Current assignee: Sinohydro Bureau 12 Co Ltd
Priority date: 2021-08-10
Filing date: 2021-08-10
Publication date: 2022-01-25
Anticipated expiration: 2031-08-10

Abstract

The utility model provides a concrete slump detection device, includes a slump section of thick bamboo, still is equipped with scalable measuring device on the slump section of thick bamboo, and scalable measuring device is including measuring cover, pull rod mechanism and scale, measures the ways on the stack shell of a slump section of thick bamboo, measures the cover outside and passes through pull rod mechanism and scale fixed connection. The utility model has simple structure, convenient carrying and high measurement accuracy in use. The working efficiency is effectively improved, real and accurate detection data are provided for the engineering, and a solid foundation is laid for ensuring the engineering quality and the engineering progress.

Description

Concrete slump detection device

Technical Field

The utility model belongs to the field of building construction equipment, and relates to a concrete slump detection device.

Background

Slump is a determination method and index of concrete workability, and a slump test is specified in the standard specification GB/T50080 of the common concrete mixture performance test method, item 4.1.3 and is carried out according to the following steps that 1, the inner wall and the bottom plate of a slump cone should be wetted without clear water, the bottom is placed on a solid horizontal plane, the slump cone is placed in the center of the bottom plate, then foot pedals on two sides are stepped on by feet, and the slump cone is kept at a fixed position during charging. 2. The concrete mixture sample should be uniformly loaded into the slump cone in three layers. Every layer of concrete mixture is loaded, a tamping bar is used for uniformly tamping 25 times in a spiral shape from the edge to the center, and the height of each layer of concrete mixture sample after tamping is about one third of the height of the cylinder. 3. When the bottom layer is inserted and tamped, the tamper should penetrate through the whole depth, and when the second layer and the top layer are inserted and tamped, the tamper should penetrate through the surface from the bottom layer to the next layer. 4. The mixture charge on the top concrete layer should be higher than the cylinder opening, and in the process of tamping, the mixture should be added at any time when the concrete mixture is lower than the cylinder opening. 5. After the top layer is carried, the charging funnel is taken down, and the surplus concrete mixture is scraped off and leveled along the opening of the barrel. 6. And after removing the concrete on the bottom plate of the cylinder edge, vertically and stably lifting the slump cylinder and lightly putting the slump cylinder beside the sample, wherein when the sample does not continuously slump or the slump time reaches 30s, a steel ruler is used for measuring the height difference between the cylinder height and the highest point of the slump concrete sample as the slump value of the concrete mixture.

Concrete slump tests are often required to be carried out on a construction site, a plurality of constructors use the detector and the ruler to carry out tests, but the measurement ruler and the leveling rod have angle difference in the slump measurement process, and the measurement result precision is influenced only by the sense of the measurer to carry out reading. The measurement values are inaccurate in the test and need to be repeated. The slump is inaccurate, and the concrete cost and the concrete quality are directly influenced, if the concrete strength cannot meet the design requirement, even the condition of rework occurs, the project progress is influenced, and the construction period is influenced.

SUMMERY OF THE UTILITY MODEL

The device aims to solve the problem that the accuracy of a slump measured value is influenced by an angle difference and the like existing in the slump measuring process of the measuring scale and the leveling rod. In order to provide detection data timely and accurately, the portable concrete slump detection device is invented. The utility model provides a concrete slump detection device for solving the technical problems.

The utility model provides a concrete slump detection device, includes a slump section of thick bamboo, still is equipped with scalable measuring device on the slump section of thick bamboo, and scalable measuring device is including measuring cover, pull rod mechanism and scale, measures the ways on the stack shell of a slump section of thick bamboo, measures the cover outside and passes through pull rod mechanism and scale fixed connection.

The further technical scheme is as follows: the graduated scale is connected with the pull rod mechanism through a clamping groove, the clamping groove is a groove with the front surface, the top surface and the bottom surface not closed, the graduated scale vertically penetrates through the clamping groove, and the graduated scale is fixed in the clamping groove through a nut on the outer side wall of the clamping groove.

The further technical scheme is as follows: the draw-in groove includes the back side, controls side and two card limits, the length on two card limits and the length that is less than the back side, two card limits, two sides and back side enclose to close and form the cuboid structure that does not seal.

The further technical scheme is as follows: the card limit of two of draw-in groove in be equipped with the draw-in groove end post respectively, the draw-in groove end post is fixed and upwards wears out in the card limit, is equipped with a connecting wire between the top of two draw-in groove end posts, the height of connecting wire flushes with the last mouthful of a slump section of thick bamboo.

The further technical scheme is as follows: the slump constant barrel is provided with a pull ring sleeve, and the pull ring sleeve is symmetrically provided with two pull rings.

The further technical scheme is as follows: the pull rod mechanism comprises a telescopic pull rod, an adjusting pull rod and a connecting rod, one end of the telescopic pull rod is fixed on the outer side of the measuring sleeve, and the other end of the telescopic pull rod is fixed on the adjusting pull rod; the adjustable pull rod is characterized in that a plurality of clamps are arranged on the adjustable pull rod, a plurality of buckles are arranged on the connecting rod, the clamps and the buckles are arranged at equal intervals and have the same interval, and the adjustable pull rod is connected with the connecting rod through the clamps and the buckles.

The further technical scheme is as follows: the scale is a ruler with scale marks on two sides, and the scale marks are located in the middle of the scale.

The further technical scheme is as follows: the precision of the graduated scale is 1 mm.

The further technical scheme is as follows: also comprises a tamper, a funnel and a moisture meter.

The utility model has the beneficial effects that: simple structure, convenient to carry, measurement accuracy is high when using. The working efficiency is effectively improved, real and accurate detection data are provided for the engineering, and a solid foundation is laid for ensuring the engineering quality and the engineering progress.

Drawings

FIG. 1 is a schematic view of the structure of a slump cone;

FIG. 2 is a plan view of the tamper, funnel and hygrometer;

FIG. 3 is a schematic diagram of a retractable measuring device;

fig. 4 is a schematic structural view of the card slot.

In the figure: 1. the device comprises a tamper, 2 parts of a slump cone, 2-1 parts of a pedal, 2-2 parts of a cone body, 2-3 parts of a pull ring, 2-4 parts of a pull ring sleeve, 3 parts of a moisture meter, 4 parts of a telescopic measuring device, 4-1 parts of a measuring sleeve, 4-1 parts of a sleeve top edge, 4-1 parts of a sleeve bottom edge, 4-2 parts of a telescopic pull rod, 4-3 parts of an adjusting pull rod, 4-4 parts of a connecting rod, 4-5 parts of a buckle, 4-6 parts of a clamping groove, 4-6 parts of a clamping edge, 4-6 parts of a side edge, 4-3 parts of a back side edge, 4-7 parts of a clamping groove hole, 4-8 parts of a clamping groove nut, 4-9 parts of a clamping groove end column, 4-10 parts of a connecting line, 4-11 parts of a graduated scale, 5 parts of a funnel.

Detailed Description

The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic views illustrating only the basic structure of the present invention in a schematic manner, and thus show only the constitution related to the present invention.

A concrete slump detection device is shown in figures 1-4 and comprises a slump cylinder 2 and a telescopic measuring device 4, wherein the telescopic measuring device 4 is sleeved on a cylinder body 2-2 of the slump cylinder 2, and the telescopic measuring device 4 can accurately and visually measure the slump height.

The body 2-2 of the slump cone 2 is in a round table shape with a narrow top and a wide bottom, and two pedals 2-1 are symmetrically arranged at the bottom of the slump cone 2. The slump cone 2 is connected with an annular pull ring sleeve 2-4, the pull ring sleeve 2-4 is fixedly welded on the slump cone 2, pull rings 2-3 are symmetrically arranged on the pull ring sleeve 2-4, and the pull rings 2-3 can be round or square handles. During the experiment, can be more convenient removal and draw slump cone 2 through the pull ring.

Concrete slump detection device still includes tamper 1, moisture meter 3 and funnel 5, and wherein, tamper 3 is used for the concrete tamping in the slump section of thick bamboo, and moisture meter 3 is used for judging whether the humidity of slump section of thick bamboo inner wall and bottom accords with the test condition, and funnel 5 is used for facilitating the use the shovel spoon and packs into the concrete in the section of thick bamboo.

The telescopic measuring device 4 comprises a measuring sleeve 4-1, a pull rod assembly and a graduated scale 4-11, wherein the measuring sleeve 4-1 is of a circular truncated cone structure, the measuring sleeve 4-1 is sleeved on a cylinder body 2-2 of the slump cylinder, a sleeve bottom edge 4-1-2 of the measuring sleeve 4-1 is clamped on a pull ring 2-3, and a sleeve top edge 4-1-1 of the measuring sleeve 4-1 is flush with an upper opening of the slump cylinder 2. The measuring sleeve can be fixed on the slump barrel, and can be detached after use, and the scale assembly does not need to be carried, so that the measuring sleeve is convenient and fast.

One side of the measuring sleeve 4-1 is provided with a pull rod mechanism for adjusting the distance outwards, and the pull rod mechanism comprises a telescopic pull rod 4-2, an adjusting pull rod 4-3 and a connecting rod 4-4. The telescopic pull rod 4-2 can be horizontally extended and contracted, the back surface of the adjusting pull rod 4-3 is provided with a plurality of clips (not shown in the figure) at equal intervals, the connecting rod 4-4 is provided with a plurality of buckles 4-5 at equal intervals, and the clips and the buckles 4-5 are at the same interval and can be connected with each other. The adjusting pull rod 4-3 is fixed on the connecting rod 4-4 by a clamp, and the horizontal distance can be adjusted by selectively connecting buckles 4-5 at different positions.

The other end of the connecting rod 4-4 is fixedly connected with the clamping groove 4-6, the cross section of the clamping groove 4-6 is of a rectangular structure, the clamping groove 4-6 comprises a rear side edge 4-6-3, side edges 4-6-2 at two sides and two clamping edges 4-6-1, the two clamping edges 4-6-1 are parallel to the rear side edge 4-6-3 and are connected through the side edge 4-6-2, the two clamping edges are arranged side by side, and the length sum of the clamping edges is smaller than that of the rear side edge 4-6-3, so that all the side edges of the clamping groove are enclosed to form a groove-shaped structure with the front surface, the top surface and the bottom surface not closed. The graduated scale 4-11 is fixedly connected in the clamping groove, a clamping groove hole 4-7 is formed in the side edge 4-6-2, far away from the connecting rod 4-4, of the clamping groove 4-6, and the graduated scale 4-11 is fixed in the clamping groove 4-6 through the clamping groove hole 4-7 by a clamping groove nut 4-8.

In a preferred embodiment, the graduated scale 4-11 is a double-sided midline graduated scale, and both the front and back sides of the graduated scale 4-11 are provided with graduation marks which are positioned in the middle of the graduated scale. The scale can conveniently be observed to two-sided central line scale, and just openly two-sided all is equipped with the scale and can facilitate the use more.

The two clamping edges 4-6-1 are also internally provided with clamping groove end posts 4-9, the clamping groove end posts 4-9 vertically penetrate through the clamping edges 4-6-1 and extend above the clamping edges, a horizontal connecting wire 4-10 is connected between the top ends of the clamping groove end posts 4-9 at the two ends, and the connecting wire 4-10 is parallel to the ground and is flush with the upper opening of the slump cone 2 in height. The connecting lines 4-10 can conveniently, directly and accurately read the data on the graduated scale.

The use method of the utility model comprises the following steps:

before the slump test, 2-4 pull ring sleeves are sleeved on 2-2 cylinder bodies, 5 funnels are placed at 2 cylinder openings of a slump cylinder, concrete is poured into the slump cylinder 2 and after three layers of inserting and tamping are carried out, redundant concrete at the cylinder openings is wiped off, the 5 funnels are taken down, then when two hands press the pull rings 2-3, feet slowly move away from 2-1 parts of pedals, the slump cylinder 2 is stably lifted vertically, and the slump cylinder 2 is placed on one side of the concrete. At the moment, the collapsible measuring device 4 is used for assisting in measuring the slump, the measuring sleeve 4-1 is sleeved on the cylinder body 2-2 of the slump cylinder 2, the sleeve bottom edge 4-1-2 of the measuring sleeve 4-1 touches the pull ring 2-3, the sleeve top edge 4-1-1 of the measuring sleeve 4-1 is flush with the upper opening of the slump cylinder 2, and the connecting line 4-10 at the top of the clamping groove 4-6 is flush with the upper opening of the slump cylinder 2. In the process of measuring the concrete slump, the distance is adjusted through the telescopic pull rod 4-2 and the adjusting pull rod 4-3, so that the graduated scale 4-11 is vertically positioned right above the highest point of the concrete specimen. And adjusting the positions of the graduated scales 4-11, and screwing the clamping groove screws 4-8 when the bottommost ends of the graduated scales are just positioned at the highest point of the concrete entity. At the moment, the scale number of the superposed position of the connecting line 4-10 and the graduated scale 4-11 is read, and is the height difference between the cylinder height and the highest point of the concrete sample after slump, namely the slump value. When the concrete slump detection device is used for measurement, the highest point of a concrete body is used as a base point for measurement, after the slump cone is moved away, the height difference of concrete slump is read through the graduated scale, the experimental error is reduced, the connecting line can be read more conveniently, and the accuracy of the experiment is improved.

In light of the foregoing description of the preferred embodiment of the present invention, many modifications and variations can be made by the worker in the light of the above teachings without departing from the spirit of the utility model. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.

Claims

1. The utility model provides a concrete slump detection device, includes a slump section of thick bamboo, its characterized in that still is equipped with scalable measuring device on the slump section of thick bamboo, and scalable measuring device is including measuring cover, pull rod mechanism and scale, measures the ways on the stack shell of a slump section of thick bamboo, measures the cover outside and passes through pull rod mechanism and scale fixed connection.

2. The concrete slump detection device according to claim 1, wherein the graduated scale is connected with the pull rod mechanism through a clamping groove, the clamping groove is a groove with the front surface, the top surface and the bottom surface not closed, the graduated scale vertically penetrates through the clamping groove, and the graduated scale is fixed in the clamping groove through a nut on the outer side wall of the clamping groove.

3. The concrete slump detection device of claim 2, wherein the clamping groove comprises a rear side, a left side, a right side and two clamping edges, the length of the two clamping edges is less than that of the rear side, and the two clamping edges, the two sides and the rear side enclose to form an unsealed cuboid structure.

4. The concrete slump detection device according to claim 3, wherein the clamping edges of the two clamping grooves are respectively provided with a clamping groove end column, the clamping groove end columns are fixed in the clamping edges and penetrate upwards, a connecting line is arranged between the top ends of the two clamping groove end columns, and the height of the connecting line is flush with the upper opening of the slump cone.

5. The concrete slump detection device of claim 1, wherein the slump cone is provided with a pull ring sleeve, and two pull rings are symmetrically arranged on the pull ring sleeve.

6. The concrete slump detection device according to claim 1, wherein the pull rod mechanism comprises a telescopic pull rod, an adjusting pull rod and a connecting rod, one end of the telescopic pull rod is fixed on the outer side of the measuring sleeve, and the other end of the telescopic pull rod is fixed on the adjusting pull rod; the adjustable pull rod is characterized in that a plurality of clamps are arranged on the adjustable pull rod, a plurality of buckles are arranged on the connecting rod, the clamps and the buckles are arranged at equal intervals and have the same interval, and the adjustable pull rod is connected with the connecting rod through the clamps and the buckles.

7. The concrete slump detection device as claimed in claim 1, wherein the graduated scale is a straight scale with graduation marks on both sides, and the graduation marks are located in the middle of the graduated scale.

8. The concrete slump detection device according to claim 7, wherein the scale has an accuracy of 1 mm.

9. The concrete slump detection device of claim 1, further comprising a tamper, a funnel and a moisture meter.