CN207751827U - A kind of concrete caving degree detecting device - Google Patents

Abstract

The utility model discloses a concrete slump detection device, which belongs to the technical field of concrete detection, and comprises a slump cylinder, a base and a measuring ruler. The base is vertically provided with a positioning column ruler, and the side wall of the slump cylinder is provided with a positioning arm, the end of the positioning arm is provided with a first collar, and the positioning arm is sleeved on the positioning column ruler through the first collar, so as to ensure that the movement direction of the slump cylinder is perpendicular to the base, and the measuring end of the measuring flat ruler is provided with The second collar, when measuring, the slump cylinder is removed from the positioning column ruler, and the measuring ruler is placed on the positioning column ruler through the second collar, so that the measuring ruler contacts the top of the concrete mixture to be measured. It avoids disturbing the concrete when the slump cylinder moves, and affects the test results. It solves the problem that the ruler is far away from the top of the concrete when reading, and it is easy to produce visual errors. The measurement accuracy is high and the operation is convenient.

Description

A concrete slump detection device

technical field

The utility model relates to the technical field of concrete detection, in particular to a concrete slump detection device.

Background technique

The concrete mixture must have good workability and facilitate construction to ensure good pouring quality. Workability includes fluidity, cohesion and water retention. At present, in construction sites and laboratories, slump tests are usually used to measure the fluidity of mixtures, supplemented by visual experience to evaluate cohesion and water retention.

The slump cylinder of the existing slump test device cannot guarantee verticality during the lifting process, which will disturb the concrete, and the ruler is far away from the top of the concrete when reading, which is prone to visual errors and inaccurate readings.

Utility model content

Aiming at the problems existing in the prior art, the utility model provides a concrete slump detection device with small disturbance in the measurement process and accurate measurement results.

The utility model is realized through the following technical solutions:

A concrete slump detection device, comprising a slump cylinder, a base and a measuring ruler, the base is vertically provided with a positioning column ruler, the side wall of the slump cylinder is provided with a positioning arm, and the end of the positioning arm is provided with a There is a first collar, and the positioning arm is sleeved on the positioning column ruler through the first collar to ensure that the movement direction of the slump cylinder is perpendicular to the base. The measuring end of the measuring flat ruler is provided with a second collar. When measuring, The slump cylinder is removed from the positioning column ruler, and the measuring ruler is placed on the positioning column ruler through the second collar, so that the measuring ruler contacts the top of the concrete mixture to be measured.

Optionally, two sets of positioning arms are arranged on the side wall of the slump cylinder.

Optionally, the positioning column ruler is provided with a measurement scale, the distance between the zero scale line of the measurement scale and the base is the same as the height of the slump cylinder, and the surface where the measurement scale is located on the positioning column ruler is a plane.

Optionally, a lifting handle is provided on the positioning arm.

Optionally, arc-shaped raised enclosures are provided on the edge of the base for enclosure of concrete.

Optionally, leveling bolts are provided on the lower surface of the base, and a level is provided on the upper surface of the base.

Optionally, a positioning bolt is provided on the side of the first collar for fixing the positioning arm at the position of the positioning column ruler, and an adjusting bolt is provided on the side of the second collar for adjusting the measurement level. The falling speed of the ruler.

Optionally, the height of the positioning column ruler is greater than or equal to twice the height of the slump cylinder.

Compared with the prior art, the utility model has the following beneficial technical effects:

The utility model discloses a concrete slump detection device, which comprises a slump cylinder, a base and a measuring ruler, a positioning column ruler is vertically arranged on the base, a positioning arm is arranged on the side wall of the slump cylinder, and the end of the positioning arm is A first collar is arranged on the upper part, and the positioning arm is set on the positioning column ruler through the first collar to ensure that the movement direction of the slump cylinder is perpendicular to the base. The measuring end of the measuring flat ruler is provided with a second collar to measure , the slump cylinder is removed from the positioning column ruler, and the measuring ruler is placed on the positioning column ruler through the second collar, so that the measuring ruler contacts the top of the concrete mixture to be measured. The movement direction of the slump cylinder is perpendicular to the base through the positioning arm and the positioning column ruler, which avoids the disturbance of the concrete during the movement of the slump cylinder and affects the detection results. The concrete slump is measured by measuring the flat ruler, which solves the problem of direct reading. The ruler is far away from the top of the concrete, which is prone to visual errors. The measurement accuracy is high and the operation is convenient.

Further, by setting the leveling bolts and the level on the base, the accuracy of the measurement results is guaranteed when the detection site is not level.

Further, the surface where the scale of the positioning column ruler is located is set as a plane, which can avoid the wear of the scale caused by the movement of the collar.

Further, fences are set on the base to prevent sewage or concrete from falling into the test site during testing and pollute the environment.

Description of drawings

Fig. 1 is the structural representation of a kind of concrete slump detection device provided by the utility model embodiment;

Fig. 2 is a top view of a concrete slump detection device provided by an embodiment of the present invention;

Fig. 3 is a schematic structural view of a horizontal measuring ruler provided by an embodiment of the present invention;

Fig. 4 is a top view schematic diagram of a horizontal measuring ruler provided by the embodiment of the present invention;

Fig. 5 is a schematic cross-sectional view of a positioning column provided by an embodiment of the present invention.

In the figure: 1 is the base; 2 is the slump cylinder; 3 is the first positioning arm; 4 is the second positioning arm; 5 is the positioning column ruler; 6 is the measuring ruler; 7 is the positioning bolt; 8 is the lifting handle 9 is the first collar; 10 is the second collar; 11 is the leveling bolt; 12 is the adjustment bolt; 13 is the connecting bolt; 14 is the level ruler.

Detailed ways

The utility model will be further described in detail below in conjunction with specific embodiments, which are explanations of the utility model rather than limitations.

As shown in Figures 1 to 4, a concrete slump detection device includes a slump cylinder 2, a base 1, and a measuring ruler 6. The base 1 is vertically provided with a positioning column ruler 5, and the slump cylinder 2 sides The wall is provided with a positioning arm, and the end of the positioning arm is provided with a first collar 9, and the positioning arm is set on the positioning column ruler 5 through the first collar 9, so as to ensure that the movement direction of the slump cylinder 2 is perpendicular to the base 1 , the measurement end of the measuring ruler 6 is provided with a second collar 10. When measuring, the slump cylinder 2 is removed from the positioning column ruler 5, and the measuring ruler 6 is placed on the positioning column ruler 5 through the second collar 10. Make the measuring ruler 6 touch the top of the concrete mixture to be measured.

Wherein, two sets of positioning arms are arranged on the side wall of the slump cylinder 2, and the two positioning arms in each set of positioning arms are respectively arranged on both sides of the same height of the slump cylinder 2, and the ends pass through the first collar 9 and The positioning column ruler 5 is slidably connected to ensure that the slump cylinder 2 is perpendicular to the base 1 when it is installed or taken out, so as to avoid disturbing the concrete and affecting the test results.

The positioning column ruler 5 is provided with a measurement scale, and the distance between the zero scale line of the measurement scale and the base 1 is the same as the height of the slump cylinder 2. The surface where the measurement scale is located on the positioning column ruler 5 is a plane, and the section of the positioning column ruler 5 is as follows: Figure 5 shows. When measuring, the slump cylinder 2 is removed from the positioning column ruler 5, and the measuring ruler 6 is placed on the positioning column ruler 5 through the second collar 10, so that the measuring ruler 6 contacts the top of the concrete mixture to be measured , read the scale value at the position of the second collar 10 at this time, which is the slump of the concrete to be tested. Wherein, for the convenience of storage and carrying, the connection mode between the positioning column ruler 5 and the base 1 may be a bolt 13 connection. Preferably, in order to avoid the disturbance of lifting the concrete slump cylinder 2 from affecting the detection results, the height of the positioning column ruler 5 should be greater than or equal to twice the height of the slump cylinder 2 .

The positioning arm is provided with a lifting handle 8, which is convenient for installing or lifting the concrete slump cylinder 2. The connection mode between the positioning arm and the concrete slump cylinder 2 can be welding or threaded connection, etc., and the implementation of the utility model does not specifically limit this .

In order to prevent the concrete from being scattered on the ground during detection and causing pollution to the environment, an arc-shaped convex enclosure is provided on the edge of the base 1 for enclosing the concrete.

In practical applications, due to the different detection environments, the surface of the device used to detect concrete slump may not be a horizontal plane, which will cause errors in the detection results. In order to solve this problem, a leveling device is installed on the lower surface of the base 1 Bolts 11, a level 14 is provided on the upper surface of the base 1 . During detection, the base 1 can be placed on a horizontal plane by adjusting the leveling bolt 11, and then the detection is performed. For example, three leveling bolts 11 uniformly distributed along the circumferential direction can be arranged on the upper and lower sides of the base 1 .

The side of the first collar 9 is provided with a positioning bolt 7, which is used to fix the positioning arm at the position of the positioning column ruler 5, and the side of the second collar 10 is provided with an adjusting bolt 12, which is used to adjust the measuring ruler 6 falling speed.

Exemplarily, the utility model includes a base 1 with a 3cm-high enclosure around it, and the base 1 is made of a non-absorbent material. A slump cylinder 2 of standard size is arranged on the base 1 . On the base 1, the two sides of the slump cylinder 2 are provided with a positioning column ruler 5 anchored on the base 1, and ensure that it is perpendicular to the plane of the base 1. Four positioning arms are installed on both sides of the slump cylinder 2, which are divided into a first positioning arm 3 and a second positioning arm 4 according to the length, wherein the first positioning arm 3 is symmetrically equipped with lifting handles 8, and the positioning arms are equipped with two sides. There is a first collar 9, and the slump cylinder 2 can be fixed on the base 1 through cylinder locking bolts. In addition, a measuring ruler 6 is provided, which is made of lightweight material and has a second collar 10 and adjusting bolts 12 at both ends. A level ruler 14 is arranged on the base 1, and three leveling bolts 11 are arranged under the base 1, which are distributed in a triangle.

Considering storage, the positioning column ruler 5 is connected to the base 1 through detachable connecting bolts 13 . The two positioning column rulers 5 are provided with scales, the scales extend downwards, and the zero scale is flush with the top of the slump cylinder 2, and the scale unit is recorded in millimeters. It is worth noting that, in order to minimize the disturbance of the concrete caused by the lifting cylinder, the height of the positioning column ruler 5 should be twice as high as the slump cylinder 2. Considering the convenience of cleaning, the connection between the enclosure on the base 1 and the bottom plate adopts an arc design.

During use, the base 1 is placed horizontally. If the inclination of the ground is large enough to affect the accuracy of the experimental results due to environmental constraints, it can be kept as horizontal as possible by adjusting the three leveling bolts 11 under the base 1 . Apply oil to the inside of the slump cylinder 2 to prevent the concrete mixture from adhering to the inner wall of the cylinder and increase the difficulty of removing the cylinder. Tighten the cylinder lock bolt on the positioning arm, so that the slump cylinder 2 is firmly fixed on the base 1 . Therefore, the base 1 should have a certain weight so that it will not completely break off the ground during the vibration process. Put the mixed concrete into the cylinder in three layers, each layer is one-third of the height of the cylinder, vibrate each layer 25 times with a spiral, and ensure that it falls in the center at the last time. The mixture is added from time to time during the final vibrating process, and the concrete is finally troweled. After completion, loosen the cylinder locking bolts on both sides of the positioning arm, and lift the slump cylinder 2 at a constant speed by pulling the handle 8 until it is removed from the positioning column ruler 5 . Put the positioning ruler into the positioning column ruler 5 by the second collar 10 at both ends, and the falling speed can be controlled by adjusting the adjusting bolts 12 on both sides of the positioning ruler until it contacts the top of the concrete mixture and stops falling. Reading, the reading corresponding to the second collar 10 is the slump of the test concrete mixture.

The specific embodiments mentioned in the utility model are only interpretations of the spirit of the utility model, and those skilled in the technical field of the utility model can modify the described specific embodiments or replace them with similar methods without departing from the spirit of the utility model .

Claims (8)

1. a concrete slump detection device, is characterized in that, comprises slump cylinder (2), base (1) and measuring level ruler (6), and described base (1) is vertically provided with positioning column ruler ( 5), the side wall of the slump cylinder (2) is provided with a positioning arm, the end of the positioning arm is provided with a first collar (9), and the positioning arm is sleeved on the positioning column ruler through the first collar (9). (5), to ensure that the direction of motion of the slump cylinder (2) is perpendicular to the base (1), the measuring end of the measuring ruler (6) is provided with a second collar (10). The slump cylinder (2) is removed from the positioning column ruler (5), and the measuring ruler (6) is set on the positioning column ruler (5) through the second collar (10), so that the measuring ruler (6) Touch the top of the concrete mix to be measured. 2. A concrete slump detection device according to claim 1, characterized in that two sets of positioning arms are arranged on the side wall of the slump cylinder (2). 3. a kind of concrete slump detection device as claimed in claim 1, is characterized in that, described positioning column ruler (5) is provided with measurement scale, the distance between the zero scale mark of measurement scale and base (1) and The height of the slump cylinder (2) is the same, and the face where the measurement scale is located on the positioning column ruler (5) is a plane. 4. A concrete slump detection device according to claim 1, characterized in that a lifting handle (8) is provided on the positioning arm. 5. A concrete slump detection device according to claim 1, characterized in that, the edge of the base (1) is provided with an arc-shaped convex enclosure for enclosing concrete. 6. A kind of concrete slump detection device as claimed in claim 1, is characterized in that, described base (1) lower surface is provided with leveling bolt (11), and base (1) upper surface is provided with level ruler ( 14). 7. A kind of concrete slump detection device as claimed in claim 1, is characterized in that, the side of described first collar (9) is provided with positioning bolt (7), is used for fixing positioning arm in positioning column ruler. On the position of (5), the side of the second collar (10) is provided with an adjusting bolt (12), and the adjusting bolt (12) is used to adjust the falling speed of the measuring ruler (6). 8. A concrete slump detection device according to claim 1, characterized in that the height of the positioning column ruler (5) is greater than or equal to twice the height of the slump cylinder (2).