CN210465229U

CN210465229U - Concrete slump tester

Info

Publication number: CN210465229U
Application number: CN201921502627.1U
Authority: CN
Inventors: 臧金源; 褚祥鹏
Original assignee: Shandong Kaiyuda New Material Technology Co ltd
Current assignee: Shandong Kaiyuda New Material Technology Co ltd
Priority date: 2019-09-10
Filing date: 2019-09-10
Publication date: 2020-05-05
Anticipated expiration: 2029-09-10

Abstract

The utility model discloses a concrete slump apparatus, include: bottom plate, slump section of thick bamboo, measurement scale, universal spirit level, leveling stabilizer blade. The slump cone is a circular truncated cone with an upper opening and a lower opening, two foot plates which are bilaterally symmetrical are arranged on the outer surface of the slump cone at proper positions away from the bottom, and two handles are bilaterally symmetrical on the outer wall of the cone body. The bottom plate is provided with a movable pressing plate for pressing the foot plate, the movable pressing plate drives the gear to control through the rack, and the movable pressing plate can simultaneously press and release the foot plate. The measuring staff is provided with a flat ruler which can slide up and down and rotate left and right. The concrete slump tester is provided with the bottom plate capable of adjusting the level, so that the trouble of finding a horizontal test place on site is avoided; the slump cone is fixed with the foot plate through the movable pressing plate, so that the operation is convenient, and the whole slump detection work can be completed by a single person; the measuring scale is vertically fixed on the bottom plate, and a detector can quickly measure the slump numerical value of the concrete mixture through the sliding flat ruler.

Description

Concrete slump tester

Technical Field

The utility model relates to a concrete mixture performance detects technical field, especially a concrete slump tester.

Background

The concrete slump is the height of the concrete mixture slump under the action of self weight, and mainly represents the workability of the concrete mixture. Slump is a comprehensive index capable of comprehensively representing the consistency, cohesiveness and water retention of concrete, and is an important performance index for whether the concrete is easy to construct and operate and is uniform and dense. The main factors influencing the concrete slump include water consumption per unit volume, water-cement ratio, sand rate, cementing material conditions, aggregate conditions, time, temperature, additives and the like.

At present, concrete premixed enterprises, concrete prefabricated enterprises and methods for measuring concrete slump in construction sites place a slump cone on a non-water-absorbing rigid bottom plate, wherein the slump cone needs to be manually treaded on foot pedals at two sides, and the ground for placing the bottom plate needs to be firm and level; when in operation, one person steps on the foot pedals at two sides by feet, so that the slump cone is kept at a fixed position when in charging; another person divides the concrete mixture sample into three layers and evenly loads into the slump cone, when each layer of concrete mixture is loaded, the tamping rod is applied to evenly insert and tamp for 25 times according to the spiral shape from the edge to the center, after the top layer is inserted and tamped, the loading funnel is taken down, the redundant concrete mixture is scraped off, and the concrete mixture is trowelled along the cone opening. And then, vertically and stably lifting the slump cone, wherein the concrete mixture is collapsed due to self weight, and the height difference between the cone height and the highest point of the collapsed concrete sample is measured by a steel ruler, namely the concrete slump. If only one person operates, easily spill when filling and leak concrete and pollute operating personnel's shoes trousers, the focus is unstable leads to the slope of slump cone, and the concrete is from the bottom seepage.

Existing patents, patent numbers: CN 107422105a, which only states that there is a locking member on the bottom plate to fix the slump cone, does not solve the problem of how to lock the operation, and the effect is not good, so this application is proposed to solve the above-mentioned drawbacks.

Existing patents, patent numbers: CN201620929543.6, which states that the pressing mechanism includes a bending pressing rod and a torsion spring, one end of the pressing rod is hinged on the upper surface of the bottom plate through a pin, the torsion spring is sleeved on the pin, and the other end of the pressing rod is pressed under the mounting ring under the action of the torsion spring. When the slump cone is lifted, the pressure of the pressure rod needs to be overcome, and when the mounting ring and the pressure rod are separated, force is easily applied unevenly, so that the speed of the slump cone is changed, and the measuring result is influenced. The present application is therefore proposed to address the above-mentioned deficiencies.

SUMMERY OF THE UTILITY MODEL

The utility model discloses the technical problem who solves: the slump tester has the advantages that the requirement on the flatness of the placed ground is not high, the slump tester is simple to operate by one person, convenient to measure and easy to store.

The utility model provides a solution of its technical problem: the utility model provides a concrete slump apparatus, includes bottom plate, a slump section of thick bamboo, measures scale, universal spirit level and leveling stabilizer blade, a slump section of thick bamboo is upper and lower open-ended round platform, and a slump section of thick bamboo surface is equipped with two bilateral symmetry's sole apart from bottom suitable position, the bottom plate upper surface is equipped with the movable press plate that two bilateral symmetry can push down the sole.

The preferred scheme is as follows:

the lower parts of one ends of the two movable pressing plates are respectively connected with a gear, the gears and the movable pressing plates are assembled into a whole, and the gears drive the movable pressing plates to rotate around the centers of the gears; two gears are meshed with a rack, a shifting lever capable of being shifted leftwards and rightwards is arranged in the middle of the rack, the shifting lever shifts the rack to translate, the rack drives the gears to rotate, and the two movable pressing plates can simultaneously press or loosen the slump foot plate.

The measuring scale is connected to the bottom plate through threads and can be detachably stored, the measuring scale is provided with a leveling ruler which can slide up and down and horizontally rotate, scales are carved on the measuring scale, the leveling ruler is 0 mm-280 mm from top to bottom, and the scales are read when the leveling ruler is equal to the slump cone in height.

The upper part of the bottom plate is provided with a universal level gauge, the lower part of the bottom plate is provided with leveling support legs, the leveling support legs are connected with the bottom plate through threads, the exposed length of the leveling support legs can be adjusted through rotation, and the leveling support legs are matched with the universal level gauge to rotate to level the bottom plate.

The method comprises the following actual operation steps: placing a bottom plate on the ground, and mounting a measuring rod and a measuring scale on the bottom plate; observing the universal level gauge, and adjusting the leveling support legs to level the bottom plate; placing the slump cone on the upper surface of the bottom plate, poking the poking rod, poking the rack to translate by the poking rod, driving the gear to rotate, enabling the movable pressing plate on the upper surface of the bottom plate to rotate and press the foot plate on the slump, and enabling the slump cone to be kept at a fixed position during charging; uniformly loading concrete mixture samples into a slump cone in three layers, uniformly inserting and tamping for 20-30 times in a spiral manner from the edge to the center by using a tamping rod every time one layer of concrete mixture is loaded, taking down a loading funnel after the top layer is inserted and tamped, scraping off redundant concrete mixture, and troweling along the cone opening. And then, vertically and stably lifting the slump cone, enabling concrete mixtures to slump due to self weight, adjusting a measuring scale, and measuring the height difference between the cone height and the highest point of the slump concrete sample, namely the concrete slump.

The utility model has the advantages that: the requirement for detecting the field flatness is low, the leveling support legs can be adjusted to realize the level of the bottom plate, the whole slump detection work can be completed by a single person, and a detector can quickly measure the slump numerical value of the concrete mixture through the sliding leveling ruler.

Drawings

Fig. 1 is a schematic structural view of the concrete slump tester of the present invention.

FIG. 2 is a schematic view of the upper surface structure of the base plate;

FIG. 3 is a schematic view of the internal structure of the base plate;

the figures are numbered: 1. a base plate; 2 slump cone; 3, leveling; 4 measuring a scale; 5 leveling support legs; 6, a movable pressing plate; 7, collapsing the tube leg plate; 8, a universal level gauge; 9 gears; 10 racks; 11 a deflector rod.

Detailed Description

The following description of the embodiments of the present invention will be made in detail with reference to the accompanying drawings, wherein the embodiments of the present invention are described in detail with reference to the accompanying drawings, for example, the shapes of the components, the mutual positions and connection relationships of the respective portions, the functions and operation principles of the respective portions, and the like.

Example 1:

a slump tester includes: bottom plate 1, slump section of thick bamboo 2, measurement scale 4, universal spirit level 8, leveling stabilizer blade 5. The slump cone 2 is a circular table with an upper opening and a lower opening, and two foot plates 7 which are bilaterally symmetrical are arranged at the proper positions of the outer surface and the bottom. The bottom plate 1 is provided with a movable pressing plate 6 for pressing the foot plate, the movable pressing plate 6 drives a gear 9 to control through a rack 10, and the movable pressing plate 6 can press or release the foot plate 7 at the same time. The measuring scale 4 is provided with a flat rule 3 which can slide up and down and rotate horizontally. The universal level meter 8 is arranged on the upper part of the bottom plate 1, and can observe whether the bottom plate 1 is horizontal or not. The leveling feet 5 are connected with the bottom of the bottom plate 1 through threads, and can be kept horizontal by rotating the adjusting bottom plate 1.

When the experiment is started, the universal level meter 8 is matched to adjust through the rotating leveling supporting feet 5, so that the bottom plate 1 is leveled.

Then place slump section of thick bamboo 2 suitable position on the bottom plate 1, stir driving lever 11, driving lever 11 stirs rack 10 translation, and rack 10 drives two gears 9 and rotates, drives two movable pressing plate 6 and pushes down slump sole 7 simultaneously.

The measuring scale 4 is vertically connected with the bottom plate 1 through a detachable thread, slides up and down and rotates the flat ruler 3 left and right, so that the reading scale is 0mm when the measuring scale is as high as the slump cone 2.

And (3) removing the leveling ruler 3, uniformly loading the concrete mixture samples into a slump cone in three layers, uniformly inserting and tamping the concrete mixture in a spiral manner for 20-30 times from the edge to the center by using a tamping bar when each layer of concrete mixture is loaded, taking down a loading funnel after the top layer is inserted and tamped, scraping off the redundant concrete mixture, and leveling along the cone opening.

The slump cone 2 is pressed, the shifting lever 11 is shifted reversely, the shifting lever 11 shifts the rack 10 to translate, the rack 10 drives the two gears 9 to rotate, and the two movable pressing plates 6 are driven to simultaneously loosen the slump foot plate 7. And the slump cone is lifted vertically and stably, and the concrete mixture is collapsed due to self weight.

After the concrete sample is slump for a specified time, the measuring scale 4 is slid up and down, and the leveling rod 3 is rotated left and right to be as high as the highest point of the slump concrete sample. And reading the scale value of the leveling rod 3 on the measuring scale 4, namely the slump value of the tested concrete.

The above description is only for the specific embodiments of the present invention adopted in the concrete implementation, and not for the limitation of the embodiments. Any person skilled in the art can easily conceive of alterations or modifications on the basis of the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a concrete slump apparatus which characterized in that: including bottom plate (1), a slump section of thick bamboo (2), measurement scale (4), universal spirit level (8) and leveling stabilizer blade (5), a slump section of thick bamboo (2) are upper and lower open-ended round platform, and a slump section of thick bamboo (2) surface is equipped with two bilateral symmetry's sole apart from bottom suitable position, bottom plate (1) upper surface is equipped with movable clamp plate (6) that two bilateral symmetry can push down the sole.

2. The concrete slump tester according to claim 1, wherein: the lower parts of one ends of the two movable pressing plates (6) are respectively connected with a gear, the gear (9) and the movable pressing plates (6) are assembled into a whole, and the gear (9) drives the movable pressing plates (6) to rotate around the center of the gear; two gears (9) are meshed with a rack (10), a shifting lever (11) which can be shifted left and right is arranged in the middle of the rack (10), the shifting lever (11) shifts the rack (10) to move horizontally, the rack (10) drives the gears (9) to rotate, and the two movable pressing plates (6) can simultaneously press or loosen the slump foot plate (7).

3. The concrete slump tester according to claim 1, wherein: the measuring scale (4) is connected to the bottom plate (1) through threads and can be detachably stored, the measuring scale (4) is provided with a flat ruler (3) which can slide up and down and horizontally rotate, scales are carved on the measuring scale (4), the scales are 0 mm-280 mm from top to bottom, and the scales are read when the flat ruler (3) and the slump cone (2) are equal in height and are 0 mm.

4. The concrete slump tester according to claim 1, wherein: the leveling device is characterized in that the upper portion of the bottom plate (1) is provided with a universal level gauge (8), the lower portion of the bottom plate is provided with leveling support legs (5), the leveling support legs (5) are connected with the bottom plate (1) through threads, the exposed length of the leveling support legs (5) can be adjusted in a rotating mode, the leveling support legs (5) are matched with the universal level gauge (8) and rotated, and the level of the bottom plate (1) is achieved.