Integrated measuring device for measuring slump and expansion of concrete

Abstract

The utility model discloses an integrated measuring device for measuring slump and expansion of concrete, which comprises a bottom plate, a door-shaped frame, a support rod and a slump cylinder, a digital distance meter is mounted in the middle of a cross rod of the door-shaped frame, adjustable support legs are arranged on the bottom surface of the bottom plate, a bubble level is arranged on the top surface of the bottom plate, and the adjustable support legs are connected with the bubble level. And an expansion degree measuring scale is carved on the top surface of the bottom plate. According to the utility model, a high-levelness measuring platform can be provided for measuring the slump and the expansion of concrete on a construction site or in a laboratory by utilizing the bottom plate, and the concrete filled in the slump cone can slump on the top surface of the bottom plate, so that the purpose of simulating the slump process of the concrete can be realized; when the concrete on the top surface of the bottom plate stops collapsing, the digital distance measuring instrument is used for measuring the height of the top end of the concrete collapsing on the top surface of the bottom plate, and the expansion size of the concrete collapsing on the top surface of the bottom plate can be visually measured through the expansion degree measuring scale.

Description

Technical Field

[0001] The utility model belongs to the technical field of concrete construction, and in particular relates to an integrated measuring device for measuring the slump and expansion of concrete. Background Art

[0002] Concrete slump mainly refers to the plasticization and pumpability of concrete. During the concrete construction process, if the concrete slump is large, it is easy to cause segregation of the mixture. If the concrete slump is too small, it will bring difficulties to the construction. Therefore, the concrete slump requirements of construction construction must meet the standards. Slump test is a very important item in concrete quality inspection. In the construction process and laboratory, a slump cone is usually used to test the slump of concrete. First, fill the slump cone with concrete, and use a trowel to scrape off the excess concrete along the top of the slump cone and smooth it; then, clean the concrete on the horizontal ground and keep the horizontal ground moist; finally, lift the slump cone vertically and steadily. When the concrete filled in the slump cone is completely separated from the slump cone and stops collapsing, the height difference between the highest point of the concrete before the collapse and the highest point of the concrete after the collapse is the slump value of the concrete. However, in actual operation, the ground level is not level enough. When setting up the measuring tool to measure the highest point of the concrete after collapse, the error is large and it is not convenient to operate. When the expansion of the concrete after collapse needs to be measured at the same time, the accuracy of the measurement cannot be guaranteed due to the influence of the horizontal force. Therefore, an integrated measuring device for measuring the slump and expansion of concrete that is easy to operate and has high measurement accuracy should be provided. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide an integrated measuring device for measuring the slump and expansion of concrete in view of the deficiencies in the above-mentioned prior art. The device has a simple structure and a reasonable design. A base plate can be used to provide a high-level measuring platform for measuring the slump and expansion of concrete at a construction site or in a laboratory. A support rod is slidably installed on two upright posts of a portal frame, and a slump cone is fixedly installed in the middle of the support rod. When the slump cone is quickly lifted along the height direction of the two upright posts, the concrete filled in the slump cone will collapse on the top surface of the base plate, thereby achieving the purpose of simulating the concrete collapse process. When the concrete on the top surface of the base plate stops collapsing, a digital rangefinder is used to measure the top height of the concrete collapsed on the top surface of the base plate, and an expansion measuring scale can be used to intuitively measure the expansion size of the concrete collapsed on the top surface of the base plate.

[0004] In order to solve the above technical problems, the technical solution adopted by the utility model is: an integrated measuring device for measuring the slump and expansion of concrete, characterized in that it includes a base plate, a portal frame fixedly installed on the base plate, a support rod with two ends slidably installed on two columns of the portal frame, and a slump cone fixedly installed in the middle of the support rod, the inner diameter of the bottom end of the slump cone is larger than the inner diameter of the top end of the slump cone, a digital rangefinder is installed in the middle of the cross bar of the portal frame, adjustable legs are arranged on the bottom surface of the base plate, a bubble level is arranged on the top surface of the base plate, and an expansion measuring scale is engraved on the top surface of the base plate, the expansion measuring scale includes two vertically intersecting straight line segment scales and a plurality of concentrically arranged circular scales, the diameter of the smallest circle of the circular scale is equal to the inner diameter of the bottom end of the slump cone, and a hook for hooking on the cross bar is arranged on the support rod.

[0005] The above-mentioned integrated measuring device for measuring the slump and spread of concrete is characterized in that: the ring width between two adjacent concentric circles is equal to 50 mm, and the diameters of the plurality of circular rulers are arranged in order from small to large: and

[0006] The above-mentioned integrated measuring device for measuring the slump and expansion of concrete is characterized in that sleeves matching with the columns are provided at both ends of the support rod.

[0007] The above-mentioned integrated measuring device for measuring the slump and spread of concrete is characterized in that a tamping rod is detachably mounted on the cross bar via a spring hook.

[0008] The above-mentioned integrated measuring device for measuring the slump and spread of concrete is characterized in that a handle is provided on the crossbar.

[0009] Compared with the prior art, the utility model has the following advantages:

[0010] 1. The utility model arranges a door frame on a base plate, arranges adjustable legs on the bottom surface of the base plate, and arranges a bubble level on the top surface of the base plate. In actual use, the base plate is a square base plate, and the number of adjustable legs is four. The four adjustable legs are respectively arranged at the four corners of the square base plate. Under the measurement of the bubble level, the height of the four adjustable legs is adjusted to achieve the purpose of adjusting the horizontality of the base plate, so that the base plate can provide a high-level measurement platform for measuring the slump and expansion of concrete at a construction site or in a laboratory.

[0011] 2. The utility model installs a support rod by sliding on two upright posts of the portal frame, and fixes the slump cone on the middle part of the support rod. In actual use, the bottom end of the slump cone is first contacted with the top surface of the base plate, and concrete is filled into the slump cone, so that the slump cone provides temporary restraint for the concrete. Since the inner diameter of the bottom end of the slump cone is larger than the inner diameter of the top end of the slump cone, when the slump cone is quickly lifted along the height direction of the two upright posts, the concrete filled in the slump cone instantly loses the temporary restraint. At this time, the concrete filled in the slump cone will collapse on the top surface of the base plate, so as to achieve the purpose of simulating the concrete collapse process. By arranging a hook on the support rod, when the slump cone is manually lifted instantly by the operator, the hook is hooked on the cross bar. After the operator lets go, the slump cone can be prevented from falling freely, which would damage the state of the concrete collapsed on the top surface of the base plate.

[0012] 3. The utility model installs a digital distance meter in the middle of the cross bar of the portal frame and carves an expansion degree measuring scale on the top surface of the bottom plate. In actual use, when the concrete on the top surface of the bottom plate stops collapsing, the digital distance meter is used to measure the top height of the concrete collapsed on the top surface of the bottom plate, and the expansion size of the concrete collapsed on the top surface of the bottom plate can be intuitively measured using the expansion degree measuring scale.

[0013] 4. The utility model has a simple structure, reasonable design, easy operation and convenient promotion and application.

[0014] In summary, the utility model has a simple structure and a reasonable design. The base plate can be used to provide a high-level measuring platform for measuring the slump and expansion of concrete at a construction site or in a laboratory. The support rod is slidably installed on the two columns of the portal frame, and the slump cone is fixedly installed in the middle of the support rod. When the slump cone is quickly lifted along the height direction of the two columns, the concrete filled in the slump cone will collapse on the top surface of the base plate, which can achieve the purpose of simulating the concrete collapse process. When the concrete on the top surface of the base plate stops collapsing, the top height of the concrete collapsed on the top surface of the base plate is measured by a digital rangefinder, and the expansion size of the concrete collapsed on the top surface of the base plate can be intuitively measured by an expansion measuring scale.

[0015] The present invention is further described in detail below through the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of the utility model.

[0017] Figure 2 It is a structural schematic diagram of the base plate and the expansion degree measuring scale of the utility model.

[0018] Description of reference numerals:

[0019] 1—base plate; 2—adjustable legs; 3—bubble level;

[0020] 4—slump cone; 5—support rod; 5-1—hook;

[0021] 6-1—upright column; 6-2—crossbar; 7—sleeve;

[0022] 8—tamping rod; 8-1—limiting rod; 9—spring hook;

[0023] 10—Digital rangefinder; 11—Handle. DETAILED DESCRIPTION

[0024] like Figure 1 and Figure 2 As shown, the utility model comprises a base plate 1, a portal frame fixedly mounted on the base plate 1, a support rod 5 whose two ends are respectively slidably mounted on two upright columns 6-1 of the portal frame, and a slump cone 4 fixedly mounted in the middle of the support rod 5, the inner diameter of the bottom end of the slump cone 4 is larger than the inner diameter of the top end of the slump cone 4, a digital distance meter 10 is installed in the middle of the cross bar 6-2 of the portal frame, an adjustable support leg 2 is arranged on the bottom surface of the base plate 1, a bubble level 3 is arranged on the top surface of the base plate 1, an extension measuring scale is engraved on the top surface of the base plate 1, the extension measuring scale comprises two vertically intersecting straight line segment scales and a plurality of concentrically arranged circular scales, the diameter of the smallest circle of the circular scale is equal to the inner diameter of the bottom end of the slump cone 4, and a hook 5-1 for hooking on the cross bar 6-2 is arranged on the support rod 5.

[0025] In this embodiment, a portal frame is set on a base plate 1, and adjustable legs 2 are set on the bottom surface of the base plate 1, and a bubble level 3 is set on the top surface of the base plate 1. In actual use, the base plate 1 is a square base plate, and the number of adjustable legs 2 is four, and the four adjustable legs 2 are respectively arranged at the four corners of the square base plate. The number of bubble levels 3 is two, and the two bubble levels 3 are diagonally arranged on the top surface of the square base plate. Under the measurement action of the two bubble levels 3, by adjusting the height of the four adjustable legs 2, the purpose of adjusting the horizontality of the base plate 1 can be achieved, so that the base plate 1 can provide a high-level measurement platform for measuring the slump and expansion of concrete at the construction site or in the laboratory.

[0026] In this embodiment, the support rod 5 is slidably installed on the two columns 6-1 of the portal frame, and the slump cone 4 is fixedly installed in the middle of the support rod 5. In actual use, the bottom end of the slump cone 4 is first contacted with the top surface of the base plate 1, and the slump cone 4 is filled with concrete. The slump cone 4 provides temporary restraint for the concrete. Since the inner diameter of the bottom end of the slump cone 4 is larger than the inner diameter of the top end of the slump cone 4, when the slump cone 4 is quickly lifted along the height direction of the two columns 6-1, the concrete filled in the slump cone 4 loses the temporary restraint. At this time, the concrete filled in the slump cone 4 will collapse on the top surface of the base plate 1, which can achieve the purpose of simulating the concrete collapse process.

[0027] In this embodiment, by setting a hook 5-1 on the support rod 5, in actual use, when the slump cone 4 is manually lifted instantly by the operator, the hook 5-1 is hooked on the cross bar 6-2. After the operator lets go, the slump cone 4 can be prevented from falling freely and damaging the state of the concrete collapsed on the top surface of the base plate 1.

[0028] In this embodiment, a digital distance meter 10 is installed in the middle of the cross bar 6-2 of the portal frame, and an expansion measurement scale is engraved on the top surface of the base plate 1. In actual use, after the concrete in the slump cone 4 is filled, the digital distance meter 10 can be used to measure the height of the highest point of the concrete before collapse. When the concrete on the top surface of the base plate 1 stops collapsing, the digital distance meter 10 can be used to measure the height of the highest point of the concrete after collapse, that is, the slump of the concrete can be calculated. At the same time, the expansion measurement scale can be used to intuitively measure the expansion size of the concrete collapsed on the top surface of the base plate 1, and the concrete expansion can be obtained by calculation.

[0029] like Figure 2 As shown, in this embodiment, the ring width between two adjacent concentric circles is equal to 50 mm, and the diameters of the plurality of circular scales are arranged in order from small to large: and

[0030] In this embodiment, the inner diameter of the bottom end of the slump cone 4 is 200 mm, and the inner diameter of the top end of the slump cone 4 is 100 mm.

[0031] like Figure 1 As shown, in this embodiment, sleeves 7 matching with the column 6 - 1 are provided at both ends of the support rod 5 .

[0032] like Figure 1 As shown, in this embodiment, a tamping rod 8 is detachably mounted on the cross bar 6 - 2 via a spring hook 9 .

[0033] In the present embodiment, there are two tamping rods 8, and the lengths of the two tamping rods 8 are different. In actual use, when filling concrete into the slump cone 4, it is necessary to divide the filling into three even layers. After the layered filling is completed, tamping rods 8 of different lengths can be selected for layered vibration. That is, when inserting and tamping the bottom layer, a longer tamping rod 8 can be used to make the tamping rod 8 penetrate to the bottom of the slump cone 4. When inserting and tamping the middle layer or the top layer, a shorter tamping rod 8 can be used to make the tamping rod 8 penetrate to the top surface of the bottom layer or the top surface of the middle layer.

[0034] In this embodiment, a limit rod 8-1 is provided on the top of the tamping rod 8. When the tamping rod 8 is used to tamp the bottom layer, the limit rod 8-1 can limit the maximum depth of the tamping rod 8 inserted into the concrete, thereby preventing the tamping rod 8 from touching the bottom plate 1. When the tamping rod 8 is used to tamp the middle layer or the top layer, uneven vibration of each layer can be avoided.

[0035] like Figure 1 As shown, in this embodiment, the crossbar 6-2 is provided with a handle 11. In actual use, the operator can easily move the measuring device by holding the handle 11, which is easy to operate and convenient for popularization and application.

[0036] like Figure 1 and Figure 2 As shown, in actual use, first, by adjusting the height of the four adjustable legs 2 and observing the two bubble levels 3, the levelness of the bottom plate 1 is adjusted to make the bottom plate 1 in a horizontal state; secondly, the slump cone 4 is placed on the top surface of the bottom plate 1, and then the slump cone 4 is filled with concrete. The process of filling concrete is divided into three fillings, and each layer is rammed 25 times with a tamping rod 8, and the tamping should be carried out from the outside to the center along the spiral direction. When the top layer of concrete is rammed, the excess concrete is scraped off, and the top layer of concrete is smoothed to the top of the slump cone 4 with a trowel, and the height of the highest point of the concrete before collapse is measured by a digital distance meter 10; then, after cleaning the scattered concrete on the top surface of the bottom plate 1, the sleeve 7 and the column 6-1 are matched. Under the cooperation, the slump cone 4 is lifted vertically and steadily quickly, so that the concrete filled in the slump cone 4 collapses on the top surface of the base plate 1, and the lifted slump cone 4 is hung on the cross bar 6-2 of the portal frame through the hook 5-1, and it is ensured that the slump cone 4 does not shake; then, when the concrete on the top surface of the base plate 1 stops collapsing, the height of the highest point of the concrete after the collapse is measured by the digital distance meter 10, and the difference between the height of the highest point of the concrete after the collapse and the height of the highest point of the concrete before the collapse is the height of the concrete collapse, that is, the slump of the concrete; at the same time, the straight segment scale and multiple circular scales of the expansion degree measuring scale are used to measure the average value of two diameters perpendicular to each other of the measuring concrete expansion surface to obtain the concrete expansion degree.

[0037] The above is only a preferred embodiment of the present invention and does not constitute any limitation to the present invention. Any simple modification, change and equivalent structural change made to the above embodiments according to the technical essence of the present invention shall still fall within the protection scope of the technical solution of the present invention.

Claims

1. An integrated measuring device for measuring the slump and spread of concrete, characterized in that: The invention comprises a bottom plate (1), a portal frame fixedly mounted on the bottom plate (1), a support rod (5) with two ends respectively slidably mounted on two upright columns (6-1) of the portal frame, and a slump cone (4) fixedly mounted in the middle of the support rod (5), wherein the inner diameter of the bottom end of the slump cone (4) is larger than the inner diameter of the top end of the slump cone (4), a digital distance meter (10) is mounted in the middle of a cross bar (6-2) of the portal frame, and a The support leg (2) is adjustable, a bubble level (3) is arranged on the top surface of the base plate (1), an extension measurement scale is engraved on the top surface of the base plate (1), the extension measurement scale comprises two vertically intersecting straight line segment scales and a plurality of circular scales arranged in concentric circles, the diameter of the smallest circle of the circular scale is equal to the inner diameter of the bottom end of the slump cone (4), and the support rod (5) is provided with a hook (5-1) for hooking on the cross bar (6-2).

2. An integrated measuring device for measuring the slump and spread of concrete according to claim 1, characterized in that: The ring width between two adjacent concentric circles is equal to 50 mm, and the diameters of the plurality of circular scales are arranged in order from small to large: and 3. An integrated measuring device for measuring the slump and spread of concrete according to claim 1, characterized in that: Both ends of the support rod (5) are provided with sleeves (7) that match the upright column (6-1).

4. An integrated measuring device for measuring the slump and spread of concrete according to claim 1, characterized in that: A tamping rod (8) is detachably mounted on the cross bar (6-2) via a spring hook (9).

5. An integrated measuring device for measuring the slump and expansion of concrete according to claim 1, characterized in that: The crossbar (6-2) is provided with a handle (11).

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