CN212321619U

CN212321619U - Concrete slump measuring device

Info

Publication number: CN212321619U
Application number: CN202020758817.6U
Authority: CN
Inventors: 张俊杰; 张久林; 兰婷; 魏忠峰
Original assignee: Fourth Engineering Co Ltd of CCCC First Highway Engineering Co Ltd
Current assignee: Fourth Engineering Co Ltd of CCCC First Highway Engineering Co Ltd
Priority date: 2020-05-09
Filing date: 2020-05-09
Publication date: 2021-01-08
Anticipated expiration: 2030-05-09

Abstract

The utility model discloses a concrete slump measuring device belongs to slump and measures the field. A concrete slump measuring device, comprising: the testing platform is horizontally arranged, and a base is arranged on the upper end face of the testing platform; the vertically arranged bracket is fixedly arranged on the base, and length scale marks are arranged in the length direction of the bracket; the adapter is sleeved on the bracket and is connected with the bracket in a sliding manner; the fastener is detachably arranged on the adapter and used for pressing and fixing the adapter on the bracket; one end of the horizontal beam is fixedly connected with the adapter and the sliding table, and the horizontal beam is connected to the adapter in a sliding manner; and the distance measuring instrument is fixedly arranged on the sliding table. Compared with the prior art, the concrete slump measuring device of this application measures the degree of decline and is higher to improve measurement of efficiency.

Description

Concrete slump measuring device

Technical Field

The utility model relates to a slump measurement field, concretely relates to concrete slump measuring device.

Background

The slump of concrete, namely the slump of concrete, mainly refers to the plasticizing performance and the pumpability of concrete, and factors influencing the slump of concrete mainly include grading change, water content, weighing deviation of a weighing apparatus, the dosage of an additive, cement temperature and the like which are easily ignored. Slump refers to the workability of concrete, and particularly to the normal operation of construction, wherein the workability includes the water retention, the fluidity and the cohesiveness of the concrete.

Workability refers to the property of whether the concrete is easy to construct and operate and is uniform and compact, and is a very comprehensive property including fluidity, cohesiveness and water retention. The influence on the workability mainly comprises the water consumption, the water-cement ratio, the sand rate, the cement variety, the aggregate condition, the time, the temperature, the additive and the like.

The conventional concrete slump test method comprises filling concrete into a 300 mm-high horn-shaped slump bucket for three times, uniformly impacting 25 times along the wall of the bucket from outside to inside by a tamping hammer after each filling, tamping and leveling. Then the barrel is pulled up, the concrete generates the collapse phenomenon due to the dead weight, and the height of the highest point of the concrete after the collapse is subtracted by the barrel height (300mm), namely the slump. If the difference is 100mm, the slump is 100.

At present, in the test of concrete slump, manual measurement is mostly adopted, and the concrete slump measurement steps are more. When the method is operated manually, the measuring efficiency is low, and the accuracy of manual measurement is poor.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art, the utility model provides a concrete slump measuring device solves the technical problem that prior art concrete slump measurement accuracy is poor, measurement of efficiency is low.

The purpose of the utility model can be realized by the following technical scheme:

a concrete slump measuring device, comprising:

the testing platform is horizontally arranged, and a base is arranged on the upper end face of the testing platform;

the vertically arranged bracket is fixedly arranged on the base, and length scale marks are arranged in the length direction of the bracket;

the adapter is sleeved on the bracket and is connected with the bracket in a sliding manner;

the fastener is detachably arranged on the adapter and used for pressing and fixing the adapter on the bracket;

one end of the horizontal beam is fixedly connected with the adapter;

the sliding table is connected to the cross beam in a sliding manner;

and the distance measuring instrument is fixedly arranged on the sliding table.

Further, the distance measuring instrument is a laser distance measuring instrument or an ultrasonic distance measuring instrument.

Furthermore, a level gauge is arranged on the cross beam.

Furthermore, a scale observation window is formed in the adapter, so that the scale lines are exposed out of the adapter, a reference line is marked on the adapter, and the reference line and the measuring end of the range finder are located at the same horizontal height.

Furthermore, the lower end of the test platform is provided with at least four adjusting air bags, and the adjusting air bags are provided with one-way air inlets.

The utility model has the advantages that:

measure through this device, only need fix the crossbeam in arbitrary position of concrete test piece top, the initial registration of record distancer again with final registration can, detect more swiftly to do not need the manual work to hold the distancer, it is higher to detect the precision.

Drawings

The present invention will be further described with reference to the accompanying drawings.

Fig. 1 is a schematic structural diagram of the present application.

The parts corresponding to the reference numerals in the figures are as follows:

1. a scale observation window; 2. a support; 3. a base; 4. a concrete sample; 5. a cross beam; 6. a fastener; 7. an adapter; 8. a level gauge; 9. a sliding table; 10. a range finder; 11. a display screen; 12. a test platform; 13. the air bag is adjusted.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "open hole", "upper", "lower", "thickness", "top", "middle", "length", "inner", "around", and the like, indicate positional or positional relationships, are merely for convenience in describing the present invention and to simplify the description, and do not indicate or imply that the components or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

As shown in fig. 1, a concrete slump measuring apparatus includes: the upper end surface of the horizontally arranged test platform 12 is provided with a base 4; the vertically arranged bracket 2 is fixedly arranged on the base 4, and length scale marks are arranged in the length direction of the bracket; the adapter 7 is sleeved on the bracket 2 and is connected with the bracket 2 in a sliding manner; the fastening piece 6 is detachably mounted on the adapter 7, and the adapter 7 is pressed and fixed on the bracket 2, wherein the fastening piece 6 can be a fastening screw; one end of the horizontal beam 5 is fixedly connected with the adapter 7 through a sliding table 9 and is connected to the horizontal beam 5 in a sliding manner; and the distance measuring instrument 10 is fixedly arranged on the sliding table 9.

Explaining further below the utility model discloses a theory of operation places test platform 12 level earlier before measuring, goes into the concrete with the slump barrelling again, extracts the slump bucket after, rotates adapter 7 immediately for crossbeam 5 is located concrete test piece 4's top, adjusts the slider, makes distancer 10 be located the concrete directly over. The distance from the distance measuring device 10 to the upper end of the concrete test piece 4, i.e. the initial reading, is recorded and the fastening element 6 should be tightened to press and fix the adapter 7 on the support 2. Along with the continuous collapse of concrete, concrete sample 4 height reduces, and the registration of distancer 10 increases. When the concrete specimen 4 is stable in shape and no longer collapses, the final reading of the rangefinder 10 is recorded. And subtracting the initial readings from the final readings, wherein the unit is millimeter, and the slump of the concrete sample 4 is obtained.

Measure through this device, only need fix crossbeam 5 in the arbitrary position of concrete sample 4 top, record distancer 10 again initial registration and final registration can, detect more swiftly to do not need the manual work to hold distancer 10, it is higher to detect the precision.

Further, the distance measuring instrument 10 is a laser distance measuring instrument 10 or an ultrasonic distance measuring instrument 10, and the distance measuring instrument 10 is provided with a display screen 11 to facilitate the degree.

Furthermore, be equipped with spirit level 8 on the crossbeam 5, judge whether the crossbeam 5 is in the horizontality through spirit level 8, avoid crossbeam 5 slope to cause measuring error.

Furthermore, scale observation window 1 has been seted up on adapter 7 for expose on the adapter 7 the scale mark, the adapter 7 superscript has the datum line, the datum line with distancer 10's measurement end is located same level. Through setting up scale observation window, joint scale mark can fix adapter 7 in advance, avoids distancer 10 and concrete test piece 4 apart from the undersize, perhaps concrete test piece 4 and distancer 10 are specific too big so that exceeded the range of distancer 10.

The lower end of the test platform 12 is provided with at least four adjusting air bags 13, the adjusting air bags 13 are all provided with one-way air inlets, and the inclination angle of the base 4 is adjusted by inflating or deflating the interiors of the adjusting air bags 13. With this arrangement, when the test platform 12 is placed on an inclined floor, the test platform 12 can be finely adjusted by adjusting the air bag 13 so that the test platform 12 is kept horizontal.

In the description herein, references to the description of "one embodiment," "an example," "a specific example," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention.

Claims

1. A concrete slump measuring device, characterized by comprising:

the upper end surface of the horizontally arranged test platform (12) is provided with a base (3);

the vertically arranged bracket (2) is fixedly arranged on the base (3), and length scale marks are arranged in the length direction of the bracket;

the adapter (7) is sleeved on the bracket (2) and is connected with the bracket (2) in a sliding manner;

the fastening piece (6) is detachably arranged on the adapter (7) and used for pressing and fixing the adapter (7) on the bracket (2);

one end of the horizontal beam (5) is fixedly connected with the adapter (7);

the sliding table (9) is connected to the cross beam (5) in a sliding manner;

the distance measuring instrument (10) is fixedly installed on the sliding table (9).

2. The concrete slump measuring device according to claim 1, wherein the distance measuring instrument (10) is a laser distance measuring instrument (10) or an ultrasonic distance measuring instrument (10).

3. A concrete slump measuring device according to claim 1, wherein the cross beam (5) is provided with a level gauge (8).

4. The concrete slump measuring device according to claim 1, wherein the adapter (7) is provided with a scale observation window (1) so that the adapter (7) is exposed out of the scale lines, the adapter (7) is marked with a reference line, and the reference line and the measuring end of the distance measuring instrument (10) are located at the same horizontal height.

5. The concrete slump measuring device according to claim 1, wherein the lower end of the test platform (12) is provided with at least four adjusting air bags (13), and the adjusting air bags (13) are provided with one-way air inlets.