Inserting and tamping device for forming pervious concrete test piece

Abstract

The utility model relates to an inserting and tamping device for forming a pervious concrete test piece, which relates to the technical field of concrete test instruments and comprises a steel plate, a round bar in threaded connection with the steel plate and an inserting and tamping assembly mounted at one end, far away from the round bar, of the steel plate. The device has the effects of reducing the number of times of inserting and tamping, accelerating rapid forming of the pervious concrete test piece and improving the forming efficiency of the test piece.

Description

Technical Field

[0001] The present application relates to the technical field of concrete testing equipment, and in particular to a tamping device for forming permeable concrete specimens. Background Art

[0002] Permeable concrete is a type of concrete with numerous interconnected pores, produced by mixing coarse aggregate, cement, and water. Its excellent permeability meets the needs of sponge city development. However, permeable concrete differs significantly from conventional concrete in terms of its composition, preparation process, internal structure, and performance testing methods. Concrete specimens are typically prepared in the laboratory using manual compaction.

[0003] Manual compaction methods require multiple tamping strokes to ensure the compactness of the concrete specimen. However, existing forming devices require a high number of tamping strokes during the forming process, making operation complex and unfavorable for rapid forming. Furthermore, permeable concrete mixtures have low fluidity, leaving holes within the specimen during the tamping process that are roughly the same thickness as the tamping rod and uneven in size. As the tamping position changes, the position and size of the holes also change, affecting the compactness of the permeable concrete mixture.

[0004] Regarding the above-mentioned related technologies, the existing molding device has the problem that the number of ramming times during the molding process is large, and the ramming process leaves holes of different sizes and in disordered positions, which is not conducive to the rapid molding of the test piece. Utility Model Content

[0005] In order to reduce the number of ramming times, speed up the rapid forming of permeable concrete specimens, and improve the specimen forming efficiency, the present application provides a ramming device for forming permeable concrete specimens.

[0006] The present application provides a tamping device for forming permeable concrete specimens, which adopts the following technical solution:

[0007] A tamping device for forming a permeable concrete specimen, comprising:

[0008] Steel plate (1);

[0009] A round rod (2), the round rod (2) being threadedly connected to the steel plate (1);

[0010] A ramming assembly is mounted on an end of the steel plate (1) away from the round rod (2).

[0011] By adopting the above technical solution, the operator holds the round rod and moves it up and down, driving the steel plate to move, thereby causing the tamping assembly to move up and down in the permeable concrete specimen to achieve compaction of the permeable concrete specimen. The equipment is simple, easy to process and convenient to use.

[0012] Optionally, the tamping assembly includes at least one tamping rod, and at least one tamping rod is evenly and fixedly mounted on the steel plate.

[0013] By adopting the above technical solution, a number of not less than one rods are inserted into the permeable concrete specimen. Inserting multiple rods can evenly compact the concrete, thereby reducing defects caused by uneven insertion and tamping, speeding up the concrete forming speed, thereby saving forming time and ensuring the reliability of the specimen test data.

[0014] Optionally, the insertion rod is made of high-strength alloy material.

[0015] By adopting the above technical solution, the insertion rod has higher strength and stability, which can meet the requirements of the permeable concrete specimen forming process.

[0016] Optionally, the diameter of the insertion rod is not less than 7 mm and the diameter of the insertion rod is not greater than 9 mm.

[0017] By adopting the above technical solution, the insertion rod has sufficient strength and rigidity to meet the requirements of the ramming process, and the insertion rod does not bend or deform during the ramming process.

[0018] Optionally, the surface of the insertion rod is smooth.

[0019] By adopting the above technical solution, the surface of the insertion rod is smooth, so that after the permeable concrete specimen is inserted and rammed, less concrete remains on the insertion rod and it is easy to clean.

[0020] Optionally, a rubber sleeve is fixed on one end of the round rod away from the steel plate.

[0021] By adopting the above technical solution, the rubber sleeve increases the roughness of the round rod, thereby increasing the friction, making it easier for operators to use the device to ram the permeable concrete specimen.

[0022] Optionally, an elastic washer abuts the threaded connection between the round rod and the steel plate.

[0023] By adopting the above technical solution, the stability of the connection between the round rod and the steel plate is maintained, and the round rod and the steel plate are not likely to loosen or fall off during the ramming process.

[0024] Optionally, at least one of the insertion rods is provided with scale marks.

[0025] By adopting the above technical solution, the operator can more intuitively observe the depth of the plunger into the concrete and control the plunger force.

[0026] Optionally, the cross-section of the steel plate is trapezoidal, and the circumferential side surfaces of the steel plate are all inclined surfaces.

[0027] By adopting the above technical solution, the steel plate and the container of the concrete specimen are more easily matched during the ramming process, making ramming of concrete easier.

[0028] In summary, this application includes at least one of the following beneficial technical effects:

[0029] 1. The operator holds the round rod and moves it up and down, driving the steel plate to move, thereby making the tamping assembly move up and down in the permeable concrete specimen to achieve the compaction of the permeable concrete specimen. The equipment is simple, easy to process and convenient to use;

[0030] 2. At least one plunger is inserted into the permeable concrete specimen. Multiple plungers can evenly compact the concrete, thereby reducing defects caused by uneven insertion and tamping, speeding up the concrete forming process, saving forming time, and ensuring the reliability of the specimen test data.

[0031] 3. The inserted rod has high strength and stability, which can meet the needs of the permeable concrete specimen forming process. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a structural diagram of an embodiment of the present application;

[0033] Figure 2 It is a bottom view of the structure of an embodiment of the present application.

[0034] Description of reference numerals:

[0035] 1. Steel plate; 2. Round rod; 3. Insert rod; 4. Rubber sleeve; 5. Elastic washer; 6. Scale line. DETAILED DESCRIPTION

[0036] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features therein can be combined with each other.

[0037] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0038] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0039] The following is combined with Figure 1-2 This application is described in further detail.

[0040] The embodiment of the present application discloses a tamping device for forming permeable concrete specimens.

[0041] Reference Figure 1 The tamping device for forming permeable concrete specimens includes a steel plate 1, a round rod 2 threadedly connected to the steel plate 1, and a tamping assembly installed at one end of the steel plate 1 away from the round rod 2.

[0042] When the tamping device for forming permeable concrete specimens is in use, the operator holds the round rod 2 and moves it up and down, driving the steel plate 1 to move, thereby causing the tamping assembly to move up and down in the permeable concrete specimen to complete the compaction of the permeable concrete specimen.

[0043] Reference Figure 1 and Figure 2The ramming assembly includes no less than one ramming rod 3, the number of which is nine. The nine ramming rods 3 are evenly and fixedly mounted on the steel plate 1 in three rows with three rods in each row. The ramming rod 3 is made of high-strength alloy material, the diameter of the ramming rod 3 is not less than 7 mm, the diameter of the ramming rod 3 is not greater than 9 mm, the surface of the ramming rod 3 is smooth, and a scale is set on the ramming rod 3.

[0044] When the ramming device for forming permeable concrete specimens is in use, the rods 3 are evenly arranged and the number is appropriate. Too few rods 3 are not conducive to the rapid forming of the specimen and the forming efficiency is low. Too many rods 3 result in dense rods 3. When the rods 3 enter the concrete specimen for ramming, the fluidity of the permeable concrete mixture is low, making it difficult to insert. The rods 3 are made of a high-strength alloy material that is not easy to bend and deform, and the diameter of the rods 3 is 7 to 9 mm, which makes the rods 3 have high strength and stability, meeting the requirements of the permeable concrete specimen forming process. The surface of the rods 3 is smooth, which makes it difficult for a large amount of permeable concrete to adhere to the rods 3 and not fall off, and it is easy to clean after the ramming operation is completed. The rods 3 are marked with scales so that the operator can observe the depth of the rods 3 inserted into the concrete.

[0045] Reference Figure 1 The end of the round rod 2 away from the steel plate 1 is provided with a rubber sleeve 4, and the rubber sleeve 4 increases the roughness of the round rod 2, thereby increasing the friction, making it easier for the operator to better insert and tamp the permeable concrete specimen.

[0046] Reference Figure 1 The threaded connection between the round rod 2 and the steel plate 1 is abutted with an elastic washer 5 to maintain the stability of the connection between the round rod 2 and the steel plate 1, and the round rod 2 and the steel plate 1 are not easy to loosen or fall off during the ramming process.

[0047] Reference Figure 1 The cross section of the steel plate 1 is trapezoidal, and the sides are all inclined. During the ramming process, the steel plate 1 is easier to match with the container of the concrete specimen, making it easier to ram the concrete.

[0048] The implementation principle of the tamping device for forming permeable concrete specimens in an embodiment of the present application is as follows: when the tamping device for forming permeable concrete specimens is in use, the operator holds a round rod 2 and moves it up and down. A rubber sleeve 4 is provided on the round rod 2 to increase the friction between the round rod 2 and the hand. The up and down movement of the round rod 2 drives the steel plate 1 to move. The movement of the steel plate 1 drives the tamping rod 3 to move up and down in the permeable concrete specimen to complete the tamping of the permeable concrete specimen.

[0049] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A tamping device for forming permeable concrete specimens, characterized in that: include: Steel plate (1); A round rod (2), the round rod (2) being threadedly connected to the steel plate (1); A ramming assembly, the ramming assembly being mounted on an end of the steel plate (1) away from the round rod (2); The ramming assembly includes nine rods, which are evenly arranged in three rows of three and fixed on the steel plate. Each rod is made of high-strength alloy material, with a diameter of greater than or equal to 7 mm and less than or equal to 9 mm. Each rod has a smooth surface and is marked with scale lines. The end of the round rod (2) away from the steel plate (1) is fixed with a rubber sleeve (4); An elastic washer (5) abuts against the threaded connection between the round rod (2) and the steel plate (1); The cross section of the steel plate (1) is trapezoidal, and the side surfaces of the steel plate (1) are all inclined surfaces; The length of the insertion rod is greater than half of the length of the round rod.

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