Concrete test block manufacturing size control tool

Abstract

The utility model relates to the field of construction engineering concrete test block manufacturing, in particular to a concrete test block manufacturing size control tool which comprises a test mold cover body used for being placed on the top face of a test mold, and the test mold cover body is of an annular structure. The bottom surface of the test mold cover body is a plane, and the bottom surface is provided with an inner side edge matched with the inner side edge of the test mold top surface in shape; the inner side of the test mold cover body is provided with an inclined plane, the inclined plane is inclined inwards in the direction from the bottom to the top of the test mold cover body, and the edge, close to the bottom surface, of the inclined plane coincides with the edge of the inner side of the bottom surface. The forming quality of the concrete test block can be improved, the precision of a subsequent test result is further improved, on the basis, the concrete test block can be formed at a time, manual secondary surface finishing is not needed, and the consistency and the precision of each time of operation are improved.

Description

Technical Field

[0001] The utility model relates to the field of manufacturing concrete test blocks for construction projects, and particularly relates to a tool for controlling the manufacturing size of concrete test blocks. Background Art

[0002] Concrete test blocks are key components used in the construction industry to evaluate the quality of concrete. When evaluating the quality of concrete, the dimensions, shapes, and surface qualities of the two sides of the concrete test blocks participating in compression must strictly conform to relevant standards. However, during the actual construction process, due to the characteristics of concrete and the limitations of construction conditions, the production of test blocks often faces the problem of excessive dimensions, which will have a negative impact on the quality of concrete test blocks and test results.

[0003] Before initial setting, concrete may have phenomena such as bleeding and bleeding slurry, resulting in a certain shrinkage of the surface thickness of the test block. In order to control the thickness dimension of the formed surface layer of the test block, the top surface of the test block usually needs to be 2 - 5 mm higher than the test mold during pouring, and it is necessary to wait for secondary surface finishing of the side of the test block after initial setting. This process usually takes 2 - 5 hours. Secondary surface finishing is an important step to ensure the dimensional accuracy of the test block. It helps to eliminate surface unevenness and excess concrete, ensuring that the surface of the test block is flat and the dimensions are accurate.

[0004] However, at the construction site, especially at the field concrete pouring site, after sampling and making test blocks, many testers will not wait for the concrete to reach initial setting to perform the secondary surface finishing step due to the long waiting time. This results in the excessive thickness dimension of the formed surface layer of the test block, thereby affecting the accuracy and reliability of the test results of the concrete test block. In addition, it is difficult to ensure the consistency and precision of each evaluation operation during manual secondary surface finishing, increasing material waste and costs. Summary of the Utility Model

[0005] The purpose of the utility model is to overcome the technical problems of poor forming quality of concrete test blocks and the need for secondary surface finishing in the prior art, and to provide a tool for controlling the manufacturing size of concrete test blocks.

[0006] The utility model provides a tool for controlling the manufacturing size of concrete test blocks, including a test mold cover body for placing on the top surface of the test mold. The test mold cover body is of an annular structure; the bottom surface of the test mold cover body is a plane, and the bottom surface has an inner edge matching the shape of the inner edge of the top surface of the test mold; the inner side of the test mold cover body has an inclined surface, and the inclination mode of the inclined surface is inclined inward along the direction from the bottom to the top of the test mold cover body, and the edge of the inclined surface close to the bottom surface coincides with the inner edge of the bottom surface.

[0007] When making a concrete test block, the mold cover is placed on the top surface of the mold, and the inner edge of the bottom surface of the mold cover is aligned with the inner edge of the top surface of the mold. At this time, the concrete in the mold is higher than the mold by a certain height, and the part of the concrete higher than the mold is inside the mold cover and is blocked by the inclined surface. During the process of concrete setting and shrinking, the part of the concrete higher than the mold can sink and enter the mold under the guidance of the inclined surface to fill the vacancy generated by the shrinkage of the concrete. When the concrete solidifies into the required concrete test block, the part of the concrete test block that solidifies and forms in the mold is a square structure with relatively high forming quality. Two of the sides of the square structure are used for compression, and the remaining part of the concrete higher than the mold forms a reduced-diameter structure at the top of the square structure, which will not affect the compression of the two sides.

[0008] Optionally, the bottom surface has an outer edge that matches the shape of the outer edge of the top surface of the mold.

[0009] Optionally, the inclination angle of the inclined surface is 30 - 60°.

[0010] Optionally, the axial distance from the top end of the inclined surface to the bottom surface along the mold cover is greater than or equal to 5 mm.

[0011] Optionally, the mold cover includes a placement plate and an inclined plate; the placement plate is a flat plate structure arranged in a ring shape, the outer edge and the inner edge of the placement plate are both square, and the bottom surface of the placement plate serves as the bottom surface of the mold cover; the inclined plate is a flat plate structure, and the number of the inclined plates is four. The four inclined plates are respectively connected to the four sides of the inner edge of the placement plate and are respectively inclined inward along the direction from the bottom to the top of the mold cover. The two ends of the inclined plate along the length direction are respectively connected to the adjacent two inclined plates, and the inner surfaces of the four inclined plates close to the inside jointly form the inclined surface.

[0012] Optionally, the mold cover is an integral structure; or, the mold cover includes a plurality of cover units, and the plurality of cover units are sequentially abutted along the circumferential direction of the mold cover to form the mold cover.

[0013] Optionally, it further includes a mold. The mold is a box structure with an uncovered top. The top surface of the mold is a plane, and the inner edge of the top surface of the mold matches the shape of the inner edge of the bottom surface of the mold cover.

[0014] Optionally, the top of the mold has a protruding plate protruding outward, and the top surface of the protruding plate serves as the top surface of the mold; the bottom of the mold cover has a placement plate protruding outward; the tool further includes a clamping member, and the placement plate and the protruding plate are tightly abutted under the limitation of the clamping member.

[0015] Optionally, the card component has a card slot, and the inner wall of the card slot includes a bottom wall and two side walls. The two side walls are connected to both sides of the bottom wall, and the two side walls are parallel and spaced apart. The spacing width between the two side walls is equal to the sum of the thicknesses of the placement plate and the protruding plate.

[0016] Optionally, the bottom wall is a plane perpendicular to the two side walls.

[0017] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0018] 1. A size control tool for making concrete test blocks provided by the present utility model. By making the shape of the inner edge of the bottom surface of the test mold cover match the shape of the inner edge of the top surface of the test mold, the part of the concrete higher than the test mold is blocked by the inclined surface of the test mold cover at the top opening of the test mold, and can only condense on the inner sides of the two sides where the concrete test block participates in compression, without affecting the size and shape of the two sides. At the same time, due to the inclined setting of the inclined surface and the coincidence of the edge of the inclined surface close to the bottom surface and the inner edge of the bottom surface, it is convenient for the part of the concrete higher than the test mold to flow into the inner junction part between the test mold cover and the test mold during the condensation process of the concrete test block, thereby facilitating the molding of the concrete in this part, reducing or even avoiding the possibility of gaps or non-condensed parts in the concrete test block in this part, making the forming quality of the top edge surfaces of the two sides where the concrete test block participates in compression relatively high, and further improving the accuracy of subsequent test results. On this basis, the concrete test block can be formed at one time without manual secondary finishing, improving the consistency and accuracy of each operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 FIG. 1 is a schematic diagram of the cooperation between the test mold and the test mold cover in Embodiment 1 of the present utility model.

[0020] Figure 2 FIG. 2 is a schematic cross-sectional view of the cooperation between the test mold, the test mold cover, and the card component in Embodiment 1 of the present utility model.

[0021] Figure 3 FIG. 3 is another schematic diagram of the cooperation between the test mold and the test mold cover in Embodiment 1 of the present utility model.

[0022] Figure 4 FIG. 4 is a schematic diagram of the cover unit in Embodiment 1 of the present utility model.

[0023] Reference numerals in the drawings:

[0024] 1 - test mold; 11 - protruding plate; 2 - test mold cover; 21 - placement plate; 22 - inclined plate; 23 - inclined surface; 24 - cover unit; 3 - card component; 31 - bottom wall; 32 - side wall. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0025] The present utility model will be further described in detail below in conjunction with specific embodiments. However, this should not be construed as limiting the scope of the above-mentioned subject matter of the present utility model to the following embodiments. Any technology implemented based on the content of the present utility model belongs to the scope of the present utility model.

[0026] In the description of the specific embodiments of the present utility model, without special explanation, the expression terms of the orientation or position relationship indicated by "upper", "lower", "left", "right", "center", "inner", "outer", etc. are all based on the orientation or position relationship shown in the drawings, or the orientation or position relationship when the product / device / device of the present utility model is commonly used. These terms of orientation or position relationship are only for the convenience of describing the solution of the present utility model or simplifying the description in the specific embodiments, so as to facilitate technicians to quickly understand the solution, rather than indicating or implying that a specific device / component / element must have a specific orientation, or be constructed and operated in a specific position relationship. Therefore, it should not be construed as a limitation to the present utility model.

[0027] In addition, if terms such as "horizontal", "vertical", "hanging", "parallel" appear, it does not mean that the corresponding device / component / element is required to be absolutely horizontal or vertical or hanging or parallel, but can be slightly inclined or have a deviation. For example, "horizontal" only means that its direction is more horizontal relative to "vertical", and does not mean that the structure must be completely horizontal, but can be slightly inclined. Or, it can be simply understood that the corresponding device / component / element is arranged in the directions of "horizontal", "vertical", "hanging", "parallel", etc., and can have an error / deviation of ±10% relative to the corresponding direction setting, more preferably within ±8%, more preferably within ±6%, more preferably within ±5%, more preferably within ±4%. As long as the corresponding device / component / element is within the error / deviation range, it can still play its role in the solution of the present utility model.

[0028] In addition, the expressions such as "first", "second", "third", etc. in the terms are only used to distinguish the description of the same or similar components, and should not be construed as emphasizing or implying the relative importance of a specific component.

[0029] In addition, in the description of the embodiments of the present utility model, "several", "multiple", "a plurality of" represent at least 2. It can be any situation such as 2, 3, 4, 5, 6, 7, 8, 9, etc., and even can be more than 9.

[0030] In addition, in the description of the technical solution of the present utility model, unless otherwise clearly specified / defined / restricted, when the terms "set", "installed", "connected", "linked", "provided with", "laid", "arranged" appear, they should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection, and can be connection means commonly used in the art such as welding, riveting, bolting, and threaded connection. Such a connection can be a mechanical connection, an electrical connection, or a communication connection; it can be directly connected or indirectly connected through an intermediate medium, and can be the communication inside two components.

[0031] Embodiment 1

[0032] As Figures 1-3 shown, a size control tool for making concrete test blocks adds a matching test mold cover 2 on the basis of the existing test mold 1.

[0033] Among them, the existing test mold 1 can be a box structure without a cover on the top, and the top surface of the test mold 1 is a flat surface; on this basis, some test molds 1 have a protruding plate 11 protruding outward at the top, and the top surface of the protruding plate 11 is the top surface of the test mold 1. The top surface of the test mold 1 is usually a flat surface. Through the setting of the protruding plate 11, the strength of the opening at the top of the test mold 1 is improved, and the forming quality of the concrete test block poured in the test mold 1 is improved.

[0034] The test mold cover 2 is used to be placed on the top surface of the test mold 1. The test mold cover 2 is an annular structure. On this basis, the bottom surface and the inner side surface of the test mold cover 2 are also annular structures.

[0035] When making a concrete test block, the test mold cover 2 is placed on the top surface of the test mold 1, and the concrete in the test mold 1 is higher than the test mold 1 by a certain height (usually 2 - 5 mm). At this time, the part of the concrete higher than the test mold 1 is inside the test mold cover 2.

[0036] Among them, as Figure 2 shown, the bottom surface of the test mold cover 2 is a flat surface. The bottom surface is used to abut against the top surface of the test mold 1 when the test mold cover 2 is placed on the top surface of the test mold 1. Through the close abutment of the bottom surface of the test mold cover 2 and the top surface of the test mold 1, the concrete is blocked, and the part of the concrete higher than the test mold 1 is reduced or even avoided from infiltrating between the test mold 1 and the test mold cover 2. And the bottom surface has an inner edge matching the shape of the inner edge of the top surface of the test mold 1, usually square. When the test mold cover 2 is placed on the top surface of the test mold 1, the inner edge of the bottom surface of the test mold cover 2 is aligned with the inner edge of the top surface of the test mold 1 (i.e., the opening edge of the test mold 1), thereby blocking the concrete within the range of the top opening of the test mold 1, reducing or even avoiding the situation that the concrete oozes out from the top of the test mold 1 to between the test mold 1 and the test mold cover 2 and condenses to form bumps, which hinders the application of pressure to the side surface of the concrete test block.

[0037] The inner side of the test mold cover 2 has an inclined surface 23, and the inclined surface 23 is inclined inward along the direction from the bottom to the top of the test mold cover 2, so that the opening in the middle of the test mold cover 2 forms a structure that is narrower at the top and wider at the bottom. The edge of the inclined surface 23 close to the bottom surface coincides with the inner edge of the bottom surface.

[0038] When making concrete test blocks, place the test mold cover 2 on the top surface of the test mold 1, and align the inner edge of the bottom surface of the test mold cover 2 with the inner edge of the top surface of the test mold 1. Make the concrete in the test mold 1 higher than the test mold 1 by a certain height (usually 2 - 5 mm). At this time, by making the shape of the inner edge of the bottom surface of the test mold cover 2 match the shape of the inner edge of the top surface of the test mold 1, the part of the concrete higher than the test mold 1 is blocked by the inclined surface 23 of the test mold cover 2 at the top opening of the test mold 1, and can only condense on the inner sides of the two sides of the concrete test block participating in compression, without affecting the dimensions and shapes of the two sides; at the same time, through the inclined setting of the inclined surface 23 and the coincidence of the edge of the inclined surface 23 close to the bottom surface with the inner edge of the bottom surface, it is convenient for the part of the concrete higher than the test mold 1 to flow into the inner junction part between the test mold cover 2 and the test mold 1 during the condensation process of the concrete test block, thereby facilitating the forming of the concrete in this part, reducing or even avoiding the possibility of the concrete test block in this part having a notch or not condensing, making the forming quality of the top edge surfaces of the two sides of the concrete test block participating in compression higher, and thus improving the quality of the concrete test block and the accuracy of the subsequent test results.

[0039] In one or more embodiments, the bottom surface has an outer edge that matches the shape of the outer edge of the top surface of the test mold 1. When the outer edge of the bottom surface coincides with the outer edge of the top surface of the test mold 1, the inner edge of the bottom surface necessarily coincides with the inner edge of the top surface of the test mold 1. This facilitates observing from the outside whether the test mold cover 2 is correctly positioned on the top surface of the test mold 1, ensuring that the inner edge of the test mold cover 2 can be aligned with the inner edge of the top surface of the test mold 1 (i.e., the opening edge of the test mold 1) when the test mold cover 2 is placed on the test mold 1.

[0040] Among them, the inclination angle of the inclined surface 23 is 30 - 60°. This is convenient for the part of the concrete higher than the test mold 1 to flow into the inner junction part between the test mold cover 2 and the test mold 1 during the condensation process of the concrete test block. Among them, the inclination angle of the inner side surface is preferably inclined inward by 30°.

[0041] Among them, the axial distance from the top end of the inclined surface 23 to the bottom surface along the test mold cover 2 is preferably greater than or equal to 5 mm, so as to make the concrete in the test mold cover 2 higher than the required height of the test mold 1 (i.e., 2 - 5 mm).

[0042] In one or more embodiments, the structure of the test mold cover 2 can specifically be:

[0043] As Figure 1 or Figure 3 shown, the test mold cover 2 includes a placement plate 21 and an inclined plate 22; the placement plate 21 is a flat plate structure arranged in a ring shape, the outer edge and the inner edge of the placement plate 21 are both square, the bottom surface of the placement plate 21 serves as the bottom surface of the test mold cover 2, that is, the inner edge of the placement plate 21 is consistent with the inner edge of the top surface of the test mold 1 (i.e., the opening edge of the test mold 1), and the outer edge of the placement plate 21 is preferably consistent with the outer edge of the top surface of the test mold 1.

[0044] The inclined plate 22 is a flat plate structure, and the number of the inclined plates 22 is four. The four inclined plates 22 are respectively connected to the four sides of the inner edge of the placement plate 21 and are respectively inclined inward along the direction from the bottom to the top of the test mold cover 2. The two ends of the inclined plate 22 in the length direction are respectively connected to the adjacent two inclined plates 22, so that the four inclined plates 22 cooperate to form a frustum of a pyramid structure. At this time, the inner plates of the four inclined plates 22 close to the inside jointly form the inclined surface 23.

[0045] Among them, as Figure 1 shown, the test mold cover 2 can be an integrated structure. At this time, when the test mold 1 is filled with concrete and the test mold cover 2 needs to be placed, it is necessary to obliquely smear the part of the concrete higher than the test mold 1 inward with a trowel until the entire top surface of the test mold 1 is exposed, so as to place the test mold cover 2 on the top surface of the test mold 1 and avoid the part of the concrete higher than the test mold 1 interfering with the placement of the test mold cover 2.

[0046] In addition, as Figure 3 shown, the test mold cover 2 can also be a structure composed of multiple cover units 24. When the test mold cover 2 includes multiple cover units 24, the multiple cover units 24 are sequentially abutted along the circumferential direction of the test mold cover 2 to form the test mold cover 2. Among them, as Figure 4 shown, each cover unit 24 can include two trapezoidal plates with different sizes. Among them, the lower bottom edge of the small trapezoidal plate is connected to the upper bottom edge of the large trapezoidal plate, and there is an included angle between the two trapezoidal plates. When multiple cover units 24 are combined to form the test mold cover 2, the large trapezoidal plates of the adjacent cover units 24 cooperate to form the placement plate 21 of the test mold cover 2, and the small trapezoidal plates respectively serve as the inclined plates 22 of the test mold cover 2. At this time, when placing the test mold cover 2, the larger trapezoidal plates of the cover units 24 can be placed on the outer side of the top surface of the test mold 1 one by one, and the cover units 24 are pushed to move from the outside to the inside. At this time, the cover units 24 can automatically obliquely smear the part of the concrete higher than the test mold 1 inward, avoiding the part of the concrete higher than the test mold 1 interfering with the placement of the test mold cover 2 and facilitating the placement of the test mold cover 2 on the top surface of the test mold 1.

[0047] When the top of the test mold 1 has a protruding plate 11 protruding outward, and the bottom of the test mold cover 2 has a placing plate 21 protruding outward, a clamp 3 can also be provided to axially limit the placing plate 21 and the protruding plate 11 abutting against each other through the clamp 3, so that the placing plate 21 and the protruding plate 11 are tightly abutted under the limitation of the clamp 3.

[0048] In one or more embodiments, Figure 2 As shown, the clamping member 3 can be provided with a clamping groove that can be clamped at the contact portion between the test mold 1 and the test mold cover 2, and the inner wall of the clamping groove includes a groove bottom wall 31 and two groove side walls 32, the two groove side walls 32 are connected to both sides of the groove bottom wall 31, the two groove side walls 32 are parallel and spaced apart, and the spacing width between the two groove side walls 32 is equal to the sum of the thicknesses of the placement plate 21 and the protruding plate 11.

[0049] When the placement plate 21 of the test mold cover 2 is placed on the protruding plate 11 of the test mold 1, multiple clips 3 can be clamped on the outside of the contact area between the test mold 1 and the test mold cover 2, that is, the placement plate 21 and the protruding plate 11 that are abutted together are made to penetrate into the card groove, and the placement plate 21 and the protruding plate 11 are clamped by the two groove side walls 32 to ensure that the placement plate 21 and the protruding plate 11 are tightly abutted, further reducing or even avoiding the situation where concrete penetrates outward from the top of the test mold 1 into the space between the test mold 1 and the test mold cover 2 and condenses to form a bulge, which hinders the pressure on the side of the concrete test block.

[0050] Among them, the groove bottom wall 31 can be a plane perpendicular to the two groove side walls 32. Therefore, when the clamp 3 is clamped on the outside of the contact part of the test mold 1 and the test mold cover 2, it can be judged whether the placement plate 21 and the protruding plate 11 are aligned by whether the groove bottom wall 31 as a plane can simultaneously abut the outside of the placement plate 21 and the protruding plate 11, thereby ensuring the molding quality of the concrete test block under the cooperation of the test mold 1 and the test mold cover 2.

[0051] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A size control tool for making concrete test blocks, characterized in that, It includes a mold cover body (2) for placing on the top surface of a test mold (1), and the mold cover body (2) is of an annular structure; The bottom surface of the mold cover body (2) is a plane, and the bottom surface has an inner edge that matches the shape of the inner edge of the top surface of the test mold (1); The inner side of the mold cover body (2) has an inclined surface (23), and the inclined surface (23) is inclined inward along the direction from the bottom to the top of the mold cover body (2), and the edge of the inclined surface (23) close to the bottom surface coincides with the inner edge of the bottom surface.

2. The size control tool for making concrete test blocks according to claim 1, wherein, The bottom surface has an outer edge that matches the shape of the outer edge of the top surface of the test mold (1).

3. A size control tool for making concrete test blocks according to claim 1, characterized in that, The inclination angle of the inclined surface (23) is 30 - 60°.

4. A size control tool for making concrete test blocks according to claim 1, characterized in that, The axial distance from the top end of the inclined surface (23) to the bottom surface along the mold cover body (2) is greater than or equal to 5 mm.

5. A size control tool for making concrete test blocks according to any one of claims 1-4, characterized in that The mold cover body (2) includes a placement plate (21) and an inclined plate (22); The placement plate (21) is in the form of an annular flat plate structure, the outer edge and the inner edge of the placement plate (21) are both square, and the bottom surface of the placement plate (21) serves as the bottom surface of the mold cover body (2); The inclined plate (22) is a flat plate structure, and the number of the inclined plates (22) is four. The four inclined plates (22) are respectively connected to the four sides of the inner edge of the placement plate (21) and are respectively inclined inward along the direction from the bottom to the top of the mold cover body (2). The two ends of the inclined plate (22) along the length direction are respectively connected to the adjacent two inclined plates (22). The inner surfaces of the four inclined plates (22) close to the inner side jointly form the inclined surface (23).

6. A size control tool for making concrete test blocks according to any one of claims 1-4, characterized in that, The mold cover body (2) is an integral structure; Or, the mold cover body (2) includes a plurality of cover body units (24), and the plurality of cover body units (24) are sequentially abutted along the circumferential direction of the mold cover body (2) to form the mold cover body (2).

7. A size control tool for making concrete test blocks according to any one of claims 1-4, characterized in that, It further includes a test mold (1), the test mold (1) is a box structure with an uncovered top, the top surface of the test mold (1) is a plane, and the inner edge of the top surface of the test mold (1) matches the shape of the inner edge of the bottom surface of the mold cover body (2).

8. A size control tool for making concrete test blocks according to claim 7, characterized in that, The top of the test mold (1) has a protruding plate (11) protruding outward, and the top surface of the protruding plate (11) serves as the top surface of the test mold (1); The bottom of the mold cover body (2) has a protruding placement plate (21); The tool further includes a clamping member (3), and the placement plate (21) and the protruding plate (11) are tightly abutted under the limitation of the clamping member (3).

9. A size control tool for making concrete test blocks according to claim 8, characterized in that, The clamping member (3) has a clamping groove, the inner wall of the clamping groove includes a groove bottom wall (31) and two groove side walls (32), the two groove side walls (32) are connected to both sides of the groove bottom wall (31), the two groove side walls (32) are parallel and spaced apart, and the spacing width between the two groove side walls (32) is equal to the sum of the thicknesses of the placement plate (21) and the protruding plate (11).

10. A size control tool for manufacturing concrete test blocks according to claim 9, characterized in that, The groove bottom wall (31) is a plane perpendicular to the two groove side walls (32).

Images