CN211426497U - Portable concrete slump tester - Google Patents

Abstract

The utility model provides a portable concrete slump tester, which comprises a base and a concrete slump measuring cylinder, a movable pressing plate is arranged on the bottom plate, and a measuring cylinder fixing card is arranged on the outer side wall of the concrete slump measuring cylinder; When the measuring cylinder is on the base, the measuring cylinder fixing card is fixed by the movable pressing plate. On the one hand, the utility model combines the base and the concrete slump measuring cylinder, and combines the tamper, the measuring ruler and the shovel, which is convenient for handling, and at the same time changes the traditional method of using unfixed materials or the ground temporarily as the bottom plate. normative. On the other hand, the concrete slump measuring cylinder is fixed by the movable platen and will not shift, which is convenient for the test personnel to fill the concrete, and can be operated by one person, reducing labor input. The third is to use the handle as a marking line for measuring the slump value of concrete, which can be measured without additional auxiliary tools, which can achieve the purpose of measurement accurately and quickly, and reduce the operation error of different operators and testers.

Description

A portable concrete slump tester

technical field

The utility model belongs to the field of construction engineering, and relates to a portable concrete slump tester for detecting concrete slump.

Background technique

Concrete slump mainly refers to the plasticizing performance and pumpability of concrete. The main factors that affect concrete slump are gradation changes, water content, weighing deviation of weighing instruments, and the amount of admixtures that is easily overlooked is the temperature of cement. several aspects. Slump refers to the workability of concrete, specifically to ensure the normal progress of construction, including the water retention, fluidity and cohesion of concrete

Test method for slump: use a slump measuring cylinder with an upper mouth of 100mm, a lower mouth of 200mm and a height of 300mm, pour concrete into it and fill it in three times. Beat, tamped, and smoothed. Then pull up the measuring cylinder, and the concrete will slump due to its own weight. The height of the measuring cylinder (300mm) minus the height of the highest point of the concrete after the slump is called slump.

In traditional operations, unfixed materials or flat ground are temporarily used as the bottom plate of the slump measuring cylinder on site, which is an irregular operation. In addition, when the slump test is performed, one person is usually required to stabilize the slump measuring cylinder, and another person is required to fill the concrete. A pole is erected on the bottom of the measuring cylinder, and then a horizontal bar is set parallel to the bottom of the slump measuring cylinder 300mm above the concrete (that is, the height of the slumping measuring cylinder). Measurement, the obtained data is the slump value, which requires two people to work, saving time and effort.

In order to solve the above problems, the utility model designs and develops a portable concrete slump tester, which is convenient to carry and quick to measure while standardizing the operation, and has a very significant effect.

Utility model content

In order to solve the above technical problems, the utility model provides a portable concrete slump tester, which includes a base and a concrete slump measuring cylinder, a movable pressing plate is also provided on the bottom plate, and a measuring cylinder fixing card is arranged on the outer side wall of the concrete slump measuring cylinder. plate; when the concrete slump measuring cylinder is located on the base, the measuring cylinder fixing card is fixed by the movable pressing plate.

As a further improvement of the present invention, the base is also provided with a handle, and the handle is movably connected with both sides of the base.

As a further improvement of the present invention, the handle is connected to both sides of the base through the fixing bolts on both sides of the bottom plate; the handle can be rotated left and right along the fixing bolt. The handle can be turned left and right along the fixing bolt until it is level with the bottom plate.

As a further improvement of the present invention, the shape of the handle is a curved structure formed by connecting a plurality of straight segments, and the top handle is designed as a straight segment, and the straight segment is parallel to the plane of the bottom plate.

As a further improvement of the utility model: the length of the straight section is 150-250mm.

As a further improvement of the utility model: when the handle is erected vertically, the distance between the bottom plane of the straight section of the handle and the base is the same as the height of the concrete slump measuring cylinder. With such a handle design, when the handle is erected vertically, the concrete slump measuring cylinder can just be placed flat, that is, the distance between the bottom surface of the straight section of the handle and the plane of the base is 300mm.

As a further improvement of the present invention, there are two movable pressing plates, which are symmetrically located on the base.

As a further improvement of the present invention, the movable pressing plate is connected to the base through bolts, and the movable pressing plate can rotate left and right on the base.

As a further improvement of the utility model, there are two measuring cylinder fixing cards, which are symmetrically arranged at the bottom of the outer side wall of the concrete slump measuring cylinder.

As a further improvement of the utility model: it also includes a tamper, a measuring ruler and a scoop.

beneficial effect

On the one hand, the portable concrete slump tester of the utility model combines the base and the concrete slump measuring cylinder, and combines the tamping rod, the measuring ruler and the scoop, which is convenient to carry, and at the same time changes the traditional on-site use of non-fixed materials Or the irregularity of the ground temporarily serving as the bottom plate. On the other hand, the concrete slump measuring cylinder is fixed by the movable platen and will not be displaced, which is convenient for the tester to fill the concrete, which can be operated by one person, reduces labor input, and does not contaminate the tester's shoes. The third is to use the handle as a marking line for measuring the slump value of concrete, which can be measured without additional auxiliary tools, which can achieve the purpose of measurement accurately and quickly, and reduce the operation error of different operators and testers.

Description of drawings

FIG. 1 is a schematic structural diagram of the portable concrete slump tester of the present invention.

Fig. 2 is another structural schematic diagram of the portable concrete slump tester of the present invention.

3 is a schematic diagram of a measurement state of the portable concrete slump tester of the present invention.

reference number

1- tamping stick; 2- measuring ruler; 3- scoop; 4- handle; 41- handle connecting bolt; 42- straight section of handle; 5- concrete slump measuring cylinder; 6- base; 7 - movable pressure plate; 71- connecting bolts between movable pressure plate and base; 8- measuring cylinder fixed card; 9- measuring cylinder handle; 10- natural slump state concrete.

Detailed ways

The technical solutions of the present utility model will be further described in detail below through specific embodiments and in conjunction with the accompanying drawings.

As shown in Figures 1-3, the portable concrete slump tester of the present utility model mainly connects the concrete slump measuring cylinder (5) to the base (6) in a detachable manner, which is convenient for filling concrete to the concrete slump. In the measuring cylinder (5), in addition, after the test is completed, the remaining measuring components (such as: tamper (1), measuring ruler (2) and scoop (3)) can be placed in the concrete slump measuring cylinder (5). ) for easy portability. Specifically, the base (6) is provided with two symmetrical movable pressure plates (7). During manufacture, two movable pressure plates (7) that can be rotated left and right are symmetrically installed on the upper plane of the base (6). Correspondingly, a symmetrical measuring cylinder fixing clip (8) is provided at the bottom of the outer side wall of the concrete slump measuring cylinder (5). Two measuring cylinders fix the card plate (8). When the concrete slump measuring cylinder (5) is placed on the base (6), the movable pressing plate (7) presses and clamps the measuring cylinder fixing plate (8), so that the concrete slump measuring cylinder (5) is fixed on the base (6). 6) on. When the concrete slump measuring cylinder (5) needs to leave the base (6), the movable pressing plate (7) can be moved away from the measuring cylinder fixed clamping plate (8). Among them, the specification of the concrete slump measuring cylinder (5) is customized according to the national standard size, and is a trumpet-shaped hollow cylinder with an upper opening of 100 mm, a lower opening of 200 mm, and a height of 300 mm. In some specific embodiments, the movable pressure plate (7) is connected to the upper surface of the base (6) through bolts (71), and the movable pressure plate (7) can rotate along the bolts (71) on the upper surface of the base (6). When the concrete slump measuring cylinder (5) is located on the base (6), the fixed clamping plate (8) at the bottom of the concrete slump measuring cylinder (5) is also located on the upper surface of the base (6), and the concrete slump measuring cylinder (6) is rotated. 5), make the measuring cylinder fixed clamp plate (8) on the concrete slump measuring cylinder (5) close to the movable pressure plate (7), and then rotate the movable pressure plate (7) to cover the movable pressure plate (7) to the measuring cylinder fixed clamp plate (8), so that the measuring cylinder fixing card (8) is fixed on the base (6), and then the concrete slump measuring cylinder (5) is fixed on the base (6). When the movable pressing plate (7) rotates away from the fixed clamping plate (8) of the measuring cylinder, the fixed clamping plate (8) of the measuring cylinder, the concrete slump measuring cylinder (5) and the base (6) are released from the fixing, so that the concrete slumping measuring cylinder can be fixed. (5) Remove.

In the utility model, the base (6) is also connected with a handle (4), which is convenient to lift and carry the base (6) together with the concrete slump measuring cylinder (5). In some embodiments, the handle (4) is rotatable relative to the base (6). Both ends of the handle (4) are connected to the two side walls of the base (6) by bolts (41), and the two ends of the handle (4) can be rotated relative to the bolts (41), so that the handle (4) can be rotated relative to the bolt (41). The base (6) rotates. The structure of the handle (4) is a curved structure formed by connecting a plurality of straight segments, the top handle part is designed as a straight segment, and the straight segment is parallel to the plane of the bottom plate. As shown in Figure 1, the two ends of the top straight section are respectively connected with an inclined straight section, the bottom of the two straight sections is connected with an upright straight section, and the bottom of the vertical straight section is connected with both sides of the base to form A carrying handle (4). In addition, the distance between the lower plane of the straight section (42) of the handle (4) and the base (6) is the same as the height of the concrete slump measuring cylinder (5), that is, the concrete slumping measuring cylinder (5) can just be put into in the handle (4), so that the handle (4) can be used as a reference line when measuring the slump of concrete.

In order to facilitate the extraction of the concrete slump measuring cylinder (5), a handle (9) is also provided on the concrete slump measuring cylinder (5). Drop the middle and upper part of the outer wall of the measuring cylinder (5).

In addition, the portable concrete slump tester further comprises a tamper (1), a measuring stick (2) and a scoop (3), wherein the scoop (3) is used for scooping the concrete (10) to the concrete slump measuring cylinder In (5), the tamping rod (1) is used for tamping the concrete in the concrete slump measuring cylinder (5), and the measuring rod (2) is used for measuring the slump height of the concrete (10).

When in use, first place the base (6) flat on the ground, then turn over and place the flat handle (4), and place the concrete slump measuring cylinder (5) in the center of the base (6), so that the measuring cylinder is fixed to the clamping plate (8). ) align the movable pressure plate (7), and rotate the movable pressure plate (7) to the measuring cylinder fixing card plate and clamp the measuring cylinder fixing card plate (8). The measuring cylinder is fastened on the clamping plate and the clamping plate (8) is fastened, and at this time, the concrete slump measuring cylinder (5) is fixed on the base (6).

Use a shovel (3) to put concrete into the top of the concrete slump measuring cylinder (5), and use a tamper (1) to tamper and level it, and immediately rotate the movable pressure plates (7) on the left and right sides of the base (6) to make the concrete slump (5). The movable pressure plate (7) leaves the fixed clamping plate (8) of the measuring cylinder, and quickly pulls out the concrete slump measuring cylinder (5) by holding the handle (9) of the measuring cylinder. Collapse, then, straighten the handle (4), align the lower end of the measuring ruler (2) with the top center of the collapsed concrete (10), the upper end is close to the handle (4), and read the lower plane of the handle (4). The size of the measuring ruler (2) between the top center of the concrete (10) is the concrete slump value.

The above are only the embodiments of the present invention, and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the description and accompanying drawings of the present invention, or directly or indirectly applied to other Relevant technical fields are similarly included in the scope of patent protection of the present invention.

Claims (8)

1. The utility model provides a portable concrete slump tester which characterized in that: the concrete slump measuring cylinder comprises a base and a concrete slump measuring cylinder, wherein a movable pressing plate is further arranged on a bottom plate, and a measuring cylinder fixing clamping plate is arranged on the outer side wall of the concrete slump measuring cylinder; when the concrete slump measuring cylinder is positioned on the base, the measuring cylinder fixing clamping plate is fixed by the movable pressing plate; the base is also provided with a handle, and the handle is movably connected with the two sides of the base; the lifting handle is connected to the two sides of the base through bolts; the handle can rotate left and right along the fixing bolt.

2. The portable concrete slump tester according to claim 1, wherein: the shape of the handle is a bending structure formed by connecting a plurality of straight segments, and the top handle is designed into a straight segment which is parallel to the plane of the bottom plate.

3. The portable concrete slump tester according to claim 2, wherein: the length of the straight section is 150 mm and 250 mm.

4. The portable concrete slump tester according to claim 1, wherein: when the handle is vertically erected, the distance between the bottom plane of the straight section of the handle and the base is the same as the height of the concrete slump measuring cylinder.

5. The portable concrete slump tester according to claim 1, wherein: the movable pressing plates are two and symmetrically arranged on the base.

6. The portable concrete slump tester according to claim 5, wherein: the movable pressing plate is connected to the base through bolts and can rotate left and right on the base.

7. The portable concrete slump tester according to claim 1, wherein: the fixed cardboard of graduated flask is two, and the symmetry sets up in concrete slump measurement section of thick bamboo lateral wall bottom.

8. The portable concrete slump tester according to claim 1, wherein: also comprises a tamping rod, a measuring scale and a scoop.

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