Concrete slump measuring device

Abstract

The utility model provides a kind of concrete slump measuring device, including bottom plate, conical cylinder and several rotating fixed parts, the top of bottom plate is equipped with several upward extending fixed column, and several fixed columns are annular arrangement;Conical cylinder is set between several fixed columns along up-down direction, and the outer peripheral wall of the lower end of conical cylinder is equipped with several outward extending fixed plate, and several fixed plates are set one-to-one with several fixed columns;Several rotating fixed parts are connected with several fixed columns one-to-one rotation, and rotating fixed part has arc platform for abutting with fixed plate, and rotating fixed part can rotate and drive arc platform to press on the top of fixed plate or rotate to avoid fixed plate.The utility model provides a kind of concrete slump measuring device, just directly lift conical cylinder, avoid to disturb the internal structure of the concrete that has been vibrated and leveled, ensure the accuracy of slump measurement result.

Description

Technical Field

[0001] This utility model belongs to the field of concrete testing technology, and more specifically, it relates to a concrete slump measuring device. Background Technology

[0002] Concrete slump, as a key indicator for evaluating concrete workability, is widely used in construction sites and laboratories. It is primarily determined through slump tests to assess the fluidity of the mixture, and its cohesiveness and water retention are comprehensively evaluated using intuitive experience. This indicator quantitatively reflects the flowability of concrete and directly relates to the operability and quality stability of concrete construction.

[0003] Currently, slump testing is usually conducted using a standard slump cone: the concrete mixture is placed in three layers into the slump cone, which is placed on a base plate. Each layer is compacted as required, and the cone opening is then leveled. The cone is then lifted, and the concrete collapses under its own weight. The slump value is obtained by measuring the height difference between the cone height and the highest point of the collapsed concrete.

[0004] In existing technologies, the slump cone and the base plate are mostly fixed by a rotating snap-fit ​​method. Although this type of fixing structure can connect the conical cone to the base plate, in actual operation, the conical cone needs to be rotated during installation and disassembly. This rotation can easily disturb the internal structure of the compacted and leveled concrete, thereby affecting the accuracy of the concrete slump pattern and ultimately leading to deviations in the slump measurement results. Utility Model Content

[0005] This utility model provides a concrete slump measuring device that only requires lifting the conical cylinder, avoiding disturbance to the internal structure of the compacted and leveled concrete and ensuring the accuracy of the slump measurement results.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a concrete slump measuring device is provided, including a base plate, a conical cylinder, and several rotating fixing components. The top of the base plate is provided with several upwardly extending fixing columns, which are arranged in a ring. The conical cylinder is arranged between the fixing columns in a vertical direction. The lower outer peripheral wall of the conical cylinder is provided with several outwardly extending fixing plates, which are arranged one-to-one with the fixing columns. The rotating fixing components are rotatably connected to the fixing columns one-to-one. The rotating fixing components have an arc-shaped platform for abutting and cooperating with the fixing plates. The rotating fixing components can rotate to drive the arc-shaped platform to press against the top of the fixing plate or rotate to avoid the fixing plate.

[0007] In one possible implementation, the fixed post extends upward through the rotating fastener, and a limiting nut located above the rotating fastener is threaded onto the outer periphery of the fixed post to restrict the rotating fastener from moving upward along the axial direction of the fixed post.

[0008] In one possible implementation, the base plate has an upwardly protruding positioning block, and the bottom surface of the fixing plate has a positioning groove for accommodating the positioning block.

[0009] In one possible implementation, the conical cylinder includes a first cylinder and a second cylinder arranged sequentially in a vertical direction. The lower end of the first cylinder is provided with a first flange, and the upper end of the second cylinder is provided with a second flange. The first flange and the second flange are connected by a connecting assembly.

[0010] In some embodiments, the outer peripheral wall of the first flange is provided with a plurality of first mounting grooves with outward openings, and the outer peripheral wall of the second flange is provided with a plurality of second mounting grooves with outward openings, which are respectively arranged in a one-to-one correspondence with the plurality of first mounting grooves. The connecting component is disposed through the first mounting grooves and the second mounting grooves.

[0011] In some embodiments, two handles are provided on the outer peripheral wall of the second cylinder, and the two handles are symmetrically arranged on both sides of the second cylinder.

[0012] In one possible implementation, the top of the base plate is provided with an upwardly extending scale bar located on one side of the conical cylinder, and a horizontally extending measuring ruler for measuring slump values ​​is slidably connected to the scale bar.

[0013] In some embodiments, one end of the measuring ruler is connected to a sliding sleeve that is slidably fitted around the outer periphery of the scale rod, and the sliding sleeve is locked by a locking element.

[0014] In some embodiments, the scale bar includes two rods arranged sequentially in a vertical direction, and the two rods are threaded together.

[0015] In some embodiments, the lower rod is threadedly connected to the base plate.

[0016] Compared with the prior art, the concrete slump measuring device provided in this embodiment allows for easy disassembly of the conical cylinder after the concrete mixture has been filled. Simply rotate the fixing member to avoid the fixing plate, and then lift the conical cylinder vertically. This avoids disturbing the internal structure of the compacted and leveled concrete by rotating the conical cylinder, thus affecting the authenticity of the concrete slump shape and ensuring the accuracy of the slump measurement results. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 A schematic diagram of the front view of the concrete slump measuring device provided in this embodiment of the utility model; Figure 2 This is an embodiment of the present utility model. Figure 1 A magnified schematic diagram of the local structure at point I; Figure 3 This is a front view structural schematic diagram of the concrete slump measuring device provided in an embodiment of the present invention.

[0019] The following are the labeling elements in the figure: 10. Base plate; 11. Fixing column; 12. Positioning block; 20. Conical cylinder; 21. Fixing plate; 22. Positioning groove; 23. First cylinder; 24. Second cylinder; 30. Rotating fixing component; 31. Arc-shaped platform; 40. Limiting nut; 50. First flange; 51. Second flange; 52. First mounting groove; 53. Second mounting groove; 54. Connecting assembly; 60. Handle; 70. Scale rod; 71. Rod body; 80. Measuring ruler; 81. Sliding sleeve; 82. Locking component. Detailed Implementation

[0020] To make the technical problems, technical solutions, and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0021] It should be noted that when an element is referred to as being "set on" another element, it can be directly on the other element or indirectly on the other element. It should be understood that the terms "length," "width," "upper," "lower," "front," "rear," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a number" means two or more, unless otherwise explicitly specified.

[0022] Please see Figures 1 to 3The concrete slump measuring device provided by this utility model will now be described. The concrete slump measuring device includes a base plate 10, a conical cylinder 20, and a plurality of rotating fixing components 30. The top of the base plate 10 is provided with a plurality of upwardly extending fixing columns 11, which are arranged in a ring. The conical cylinder 20 is arranged between the plurality of fixing columns 11 in a vertical direction. The lower outer peripheral wall of the conical cylinder 20 is provided with a plurality of outwardly extending fixing plates 21, which are arranged one-to-one with the plurality of fixing columns 11. The plurality of rotating fixing components 30 are rotatably connected to the plurality of fixing columns 11. The rotating fixing component 30 has an arc-shaped platform 31 for abutting and cooperating with the fixing plate 21. The rotating fixing component 30 can rotate to drive the arc-shaped platform 31 to press against the top of the fixing plate 21 or rotate to avoid the fixing plate 21.

[0023] This application provides a concrete slump measuring device. In actual use, the conical cylinder 20 can be tightened or loosened by rotating the arc-shaped platform 31 on the rotating fixing member 30. The operation is very simple and quick, far superior to the traditional bolt tightening or foot stepping method.

[0024] Multiple fixed columns 11 and fixed plates 21 are arranged in a ring, providing uniform constraint. After rotation, the arc-shaped platform 31 presses against the top of the fixed plate 21, which can effectively prevent the conical cylinder 20 from moving upward or shaking during concrete filling and compaction, ensuring the accuracy of the test.

[0025] This fixing mechanism has few parts, a clear mechanical principle, and is not easily damaged, thus reducing manufacturing and maintenance costs.

[0026] Place the conical cylinder 20 in the center of the base plate 10, so that its fixing plate 21 is roughly aligned with the fixing post 11 of the base plate 10. Then rotate each rotating fixing component 30 so that its arc-shaped platform 31 rotates to be directly above the fixing plate 21 and presses down, thereby firmly fixing the conical cylinder 20 to the base plate 10.

[0027] Compared with the prior art, the concrete slump measuring device provided in this embodiment, after the concrete mixture is filled in the conical cylinder 20, when it is necessary to disassemble the conical cylinder 20, only needs to rotate the rotating fixing part 30 to avoid the fixing plate 21, and then directly lift the conical cylinder 20 vertically. This avoids the rotation of the conical cylinder 20 from disturbing the internal structure of the compacted and leveled concrete, affecting the authenticity of the concrete slump shape, and ensuring the accuracy of the slump measurement results.

[0028] In one possible implementation, the aforementioned fixed column 11 adopts the following... Figures 1 to 3 The structure shown is described in the following document. Figures 1 to 3The fixed column 11 extends upward through the rotating fixing member 30. The outer circumference of the fixed column 11 is threaded with a limiting nut 40 located above the rotating fixing member 30, which is used to limit the rotating fixing member 30 from moving upward along the axial direction of the fixed column 11.

[0029] Specifically, the limiting nut 40 can precisely adjust and lock the height position of the rotating fixing member 30 on the fixing column 11, ensuring that the arc-shaped platform 31 can accurately and effectively press the fixing plate 21 of different thicknesses or with slight manufacturing errors.

[0030] The nut secures the rotating fastener 30 to the fixed post 11, preventing the possibility of parts loss and improving the overall integrity of the equipment.

[0031] When assembling the conical cylinder 20, first tighten the first limiting nut 40 to preset the initial height of the rotating fixing member 30 according to the required thickness of the fixing plate 21. The rotating fixing member 30 itself can rotate freely around the fixing post 11 to achieve the function of tightening or loosening.

[0032] In one possible implementation, the aforementioned base plate 10 adopts the following... Figure 2 The structure shown is described in the following document. Figure 2 The base plate 10 is provided with an upwardly protruding positioning block 12, and the bottom surface of the fixing plate 21 is provided with a positioning groove 22 for accommodating the positioning block 12.

[0033] Specifically, the cooperation between the positioning block 12 and the positioning groove 22 provides a limit on the horizontal plane, which can quickly and accurately position the conical cylinder 20 to the center position, ensuring that the fixing plate 21 can be easily aligned with the fixing post 11, thus improving installation efficiency and accuracy.

[0034] During fixation and testing, the structure effectively resists horizontal forces, preventing the conical cylinder 20 from slipping and further enhancing test stability.

[0035] When placing the conical cylinder 20, align the positioning groove 22 at the bottom of the fixing plate 21 with the positioning block 12 on the base plate 10 and drop it down. At this time, the conical cylinder 20 is in the correct working position, and the fixing plate 21 is naturally aligned with the fixing column 11.

[0036] In one possible implementation, the aforementioned conical cylinder 20 adopts, as shown in... Figure 1 and Figure 3 The structure shown is described in the following document. Figure 1 and Figure 3 The conical cylinder 20 includes a first cylinder 23 and a second cylinder 24 arranged sequentially in the vertical direction. The lower end of the first cylinder 23 is provided with a first flange 50, and the upper end of the second cylinder 24 is provided with a second flange 51. The first flange 50 and the second flange 51 are connected by a connecting assembly 54.

[0037] Specifically, the modular design significantly reduces the overall height of the device, making it easier to pack and carry, and is particularly suitable for field operations.

[0038] The split design of the conical cylinder 20 facilitates adaptation to different standards such as American standards and Chinese standards. After testing, if it is necessary to switch standards (such as to Chinese standards), simply loosen the connecting component 54 and replace it with the first cylinder 23 of the Chinese standard specification.

[0039] If a part (usually the first cylinder 23 with the smaller lower diameter) is damaged or the concrete adheres and hardens, only the damaged part can be replaced, reducing the cost of use.

[0040] During transportation, the first cylinder 23 and the second cylinder 24 are separated. In use, the upper and lower flanges are connected by the connecting assembly 54 to form a complete conical cylinder 20.

[0041] Furthermore, the connecting assembly 54 includes bolts and nuts.

[0042] In some embodiments, see Figure 1 and Figure 3 The outer peripheral wall of the first flange 50 is provided with a plurality of first mounting grooves 52 with outward openings, and the outer peripheral wall of the second flange 51 is provided with a plurality of second mounting grooves 53 with outward openings, which are arranged one-to-one with the plurality of first mounting grooves 52. The connecting component 54 is arranged through the first mounting grooves 52 and the second mounting grooves 53.

[0043] Specifically, the first mounting slot 52 and the second mounting slot 53 form a through channel, allowing the connecting component 54 to be easily inserted and pulled out from the side simply by loosening the edge, realizing the quick connection and separation of the two sections of the cylinder, which is more convenient than aligning ordinary bolt holes.

[0044] Align the first cylinder 23 and the second cylinder 24 vertically so that the mounting slots on their outer walls are aligned. Then, insert the connecting assembly 54 horizontally into the aligned first mounting slot 52 and second mounting slot 53, and tighten the connecting assembly 54.

[0045] In some embodiments, see Figure 1 and Figure 3 Two handles 60 are provided on the outer peripheral wall of the second cylinder 24, and the two handles 60 are symmetrically arranged on both sides of the second cylinder 24.

[0046] Specifically, the handle 60 makes it easier for operators to move and lift the conical cylinder 20, especially when the conical cylinder 20 needs to be removed for measurement after disassembly. The handle is more convenient and less strenuous, and avoids touching the cylinder body with concrete stuck to it.

[0047] The handle 60 makes it easier for operators to move and lift the conical cylinder 20, especially when the conical cylinder 20 needs to be removed for measurement after disassembly. The handle is more convenient and less strenuous, and avoids touching the cylinder body with concrete stuck to it.

[0048] In one possible implementation, the aforementioned base plate 10 adopts the following... Figure 1 and Figure 3 The structure shown is described in the following document. Figure 1 and Figure 3 The top of the base plate 10 is provided with an upwardly extending scale rod 70 located on one side of the conical cylinder 20, and a horizontally extending measuring ruler 80 for measuring slump values ​​is slidably connected to the scale rod 70.

[0049] Specifically, the scale rod 70 is directly fixed to the base, forming a complete measurement system with the measuring ruler 80, eliminating the need to find and place the ruler separately, thus improving testing efficiency.

[0050] The measuring ruler 80 is slidable and can be easily placed horizontally on top of the collapsed concrete cone to directly read the height value on the scale rod 70. The reading is intuitive and accurate.

[0051] First, slide the measuring ruler 80 against the upper surface of the conical cylinder 20 and record the reading. After lifting the conical cylinder 20, the concrete will naturally collapse. Slide the measuring ruler 80 so that it rests stably on the top surface of the collapsed concrete cone and record the reading. The slump value is obtained by calculating the height difference between the cylinder height and the highest point of the collapsed concrete.

[0052] In some embodiments, see Figure 1 and Figure 3 One end of the measuring ruler 80 is connected to a sliding sleeve 81 that is slidably sleeved on the outer periphery of the scale rod 70, and the sliding sleeve 81 is locked by a locking member 82.

[0053] Specifically, the sliding sleeve 81 enables the smooth movement of the measuring ruler 80 at any height to accommodate concrete with different slumps.

[0054] The locking element 82 can firmly fix the sliding sleeve 81 and the measuring ruler 80 in their current positions during measurement, preventing them from sliding and ensuring the stability and accuracy of the readings.

[0055] When moving the measuring ruler 80, first loosen the locking piece 82. After placing the measuring ruler 80 on the concrete surface, tighten the locking piece 82 to fix the sliding sleeve 81 on the scale rod 70, and then take the reading.

[0056] Furthermore, the locking member 82 is threadedly connected to the sliding sleeve 81 and extends into the sliding sleeve 81. The inner end of the locking member 82 is used to abut against the outer peripheral wall of the scale rod 70.

[0057] In some embodiments, see Figure 1 and Figure 3 The scale rod 70 includes two rods 71 ​​arranged sequentially in the vertical direction, and the two rods 71 ​​are threaded together.

[0058] Specifically, the threaded connection allows the scale rod 70 to be disassembled into two sections. These sections can be separated for transport and storage to save space, and then joined together for use to meet measurement height requirements.

[0059] Furthermore, the upper end of the lower rod 71 is provided with an upwardly extending threaded post, and the upper rod 71 is threadedly connected to the threaded post.

[0060] In some embodiments, see Figure 1 and Figure 3 The lower rod 71 is threadedly connected to the base plate 10.

[0061] Specifically, the entire scale lever 70 can be detached from the base plate 10, further reducing the storage volume of the equipment and facilitating packaging.

[0062] If the scale rod 70 is bent or damaged, it can be easily replaced.

[0063] Furthermore, the top of the base plate 10 is provided with an upwardly extending screw, and the lower rod 71 is threadedly connected to the screw.

[0064] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A concrete slump measuring device, characterized in that, include: The base plate has several upward-extending fixed columns at the top, and the fixed columns are arranged in a ring. A conical cylinder is disposed between several fixed posts along its vertical direction. Several outwardly extending fixing plates are provided on the lower outer peripheral wall of the conical cylinder, with each fixing plate corresponding to one of the fixed posts. Several rotating fasteners are rotatably connected to several fixed columns in a corresponding manner. Each rotating fastener has an arc-shaped platform for abutting against the fixed plate. The rotating fastener can rotate to drive the arc-shaped platform to press against the top of the fixed plate or rotate to avoid the fixed plate.

2. The concrete slump measuring device as described in claim 1, characterized in that, The fixed column extends upward through the rotating fixing member, and a limiting nut located above the rotating fixing member is threaded on the outer circumference of the fixed column to restrict the rotating fixing member from moving upward along the axial direction of the fixed column.

3. The concrete slump measuring device as described in claim 1, characterized in that, The base plate is provided with an upwardly protruding positioning block, and the bottom surface of the fixing plate is provided with a positioning groove for accommodating the positioning block.

4. The concrete slump measuring device as described in claim 1, characterized in that, The conical cylinder includes a first cylinder and a second cylinder arranged sequentially in the vertical direction. The lower end of the first cylinder is provided with a first flange, and the upper end of the second cylinder is provided with a second flange. The first flange and the second flange are connected by a connecting assembly.

5. The concrete slump measuring device as described in claim 4, characterized in that, The outer peripheral wall of the first flange is provided with a plurality of first mounting grooves with outward openings, and the outer peripheral wall of the second flange is provided with a plurality of second mounting grooves with outward openings, which are arranged one-to-one with the plurality of first mounting grooves. The connecting component is provided through the first mounting grooves and the second mounting grooves.

6. The concrete slump measuring device as described in claim 4, characterized in that, The second cylinder has two handles on its outer peripheral wall, and the two handles are symmetrically arranged on both sides of the second cylinder.

7. The concrete slump measuring device as described in claim 1, characterized in that, The top of the base plate is provided with an upwardly extending scale bar located on one side of the conical cylinder, and a horizontally extending measuring ruler for measuring slump value is slidably connected to the scale bar.

8. The concrete slump measuring device as described in claim 7, characterized in that, One end of the measuring ruler is connected to a sliding sleeve that is slidably fitted around the outer periphery of the scale rod, and the sliding sleeve is locked by a locking element.

9. The concrete slump measuring device as described in claim 7, characterized in that, The scale rod includes two rods arranged sequentially in the vertical direction, and the two rods are threaded together.

10. The concrete slump measuring device as described in claim 9, characterized in that, The rod located below is threadedly connected to the base plate.

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