Blanking device for bulk density test

Abstract

The utility model relates to a blanking device for bulk density testing, and belongs to the field of concrete aggregate detection. The device comprises a tripod body, an upper funnel, a supporting plate, a capacity cylinder and the like. A first magnet is arranged in the center of the supporting plate, a second magnet is arranged in the center of the bottom of the capacity cylinder, the capacity cylinder and the upper funnel are kept on the same vertical axis through opposite attraction, it is guaranteed that the relative positions are unified during testing, and the measuring accuracy is improved. The adjustable supporting legs are arranged below the tripod body, so that the levelness of the device is convenient to adjust. And the handle on the volume cylinder is convenient to take and operate. The device effectively solves the problem that the positions of the capacity cylinder and the blanking device are not fixed in the prior art, can provide accurate aggregate stacking density parameters for the design of the concrete mix proportion, and has the advantages of simple structure, convenience in operation, accurate measurement and the like.

Description

Technical Field

[0001] This utility model relates to a concrete aggregate testing method, specifically a feeding device for bulk density testing. Background Technology

[0002] In modern construction engineering, the quality of concrete plays a crucial role in the structural stability and durability of buildings. Accurate mix design is a key step in ensuring concrete quality during production. Before designing the concrete mix, it is essential to have a comprehensive and precise understanding of the physical and chemical properties of all raw materials. Among these, the density parameters of aggregates, such as apparent density, bulk density, compacted density, and vibratory density, are particularly critical. This is because these parameters directly affect the porosity, flowability, and final mechanical properties of the concrete.

[0003] Traditional methods for testing aggregate bulk density typically rely on simple manual operation and conventional testing equipment. However, this approach has several drawbacks. Due to the lack of a stable and precise positioning mechanism between the measuring cylinder and the discharge device during testing, their relative positions are difficult to guarantee are completely consistent with each test. This leads to variations in the packing morphology and compactness of the aggregate within the measuring cylinder due to the uncertainty of the initial position and direction of the discharge, resulting in significant deviations in the measurement results. This deviation not only affects the accuracy of individual test data but also makes it impossible to obtain a reliable average value when conducting repeated tests to obtain averaging data. Consequently, it provides inaccurate parameters for concrete mix design, potentially leading to concrete that fails to meet actual engineering requirements and severely impacting the quality and safety of construction projects. Utility Model Content

[0004] The purpose of this invention is to address the aforementioned problems in the existing technology by providing a feeding device for bulk density testing.

[0005] In order to achieve the above-mentioned application objectives, the present invention adopts the following technical solution: a feeding device for bulk density testing includes a tripod body, an upper funnel disposed at the top of the tripod body, a support plate disposed at the bottom of the tripod body, and a capacity cylinder disposed on the support plate.

[0006] A magnet is provided on the support plate, and the magnet is located at the center of the support plate;

[0007] A second magnet is provided at the bottom of the measuring cylinder, and the second magnet is located at the center of the bottom of the measuring cylinder;

[0008] By using magnet one and magnet two to maintain an attraction between opposite poles, the measuring cylinder and the upper funnel are aligned on the same vertical axis.

[0009] Furthermore, adjustable support legs are provided at the bottom of the tripod.

[0010] Furthermore, both magnet one and magnet two are circular.

[0011] Furthermore, the measuring cylinder is equipped with a handle.

[0012] Compared with the prior art, the advantages of this utility model are as follows:

[0013] 1. Improved Measurement Accuracy: By cleverly utilizing the attraction between opposite poles of magnets by placing a magnet at the center of the support plate and a magnet at the center of the bottom of the measuring cylinder, the measuring cylinder and the upper funnel are always aligned on the same vertical axis. This design effectively solves the problem of inconsistent relative positions between the measuring cylinder and the material dropping device in traditional testing devices, ensuring that the position and direction of each aggregate drop are highly consistent, thus significantly improving the accuracy and repeatability of the bulk density measurement results. After multiple experimental comparisons, the bulk density data measured using this device shows a significantly reduced deviation range compared to traditional devices, providing more accurate and reliable parameters for concrete mix design, effectively ensuring the quality stability of concrete, and thereby improving the structural safety and durability of building projects.

[0014] 2. Enhanced Device Stability: The adjustable support feet at the bottom of the tripod allow operators to flexibly adjust the levelness and height of the device according to the flatness of the actual testing site. This not only ensures that the entire testing device can be placed stably in various complex environments, reducing the adverse effects of device shaking or tilting on measurement results, but also adapts to different operating scenarios and testing needs, further enhancing the practicality and stability of the device and creating favorable conditions for obtaining accurate measurement data.

[0015] 3. Improved Ease of Operation: The handle added to the measuring cylinder greatly facilitates the operator's handling, movement, and loading / unloading. During testing, the operator can easily and accurately place the measuring cylinder in the predetermined position on the support plate, and after completing the test, can quickly and safely remove the measuring cylinder for subsequent operations such as unloading and cleaning. This significantly improves testing efficiency, reduces the tediousness and labor intensity of manual operation, and makes the entire testing process more efficient and smooth.

[0016] 4. Optimized uniformity of attraction force: Both magnet one and magnet two adopt a circular design, which makes the attraction force distribution of the magnets more uniform. While ensuring that the measuring cylinder and the upper funnel are coaxial, it can provide a more stable and balanced attraction force, effectively avoiding the displacement or shaking of the measuring cylinder due to uneven attraction force, further consolidating the positioning accuracy and measurement accuracy of the device, and ensuring the reliability and consistency of test results. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the structure of a measuring cylinder;

[0019] Figure 3 yes Figure 1 A magnified view of part A in the image.

[0020] In the diagram, 31 is the tripod; 32 is the adjustable support leg; 33 is the upper funnel; 34 is the support plate; 35 is magnet one; 4 is the container cylinder; and 41 is magnet two. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model are within the protection scope of the present utility model.

[0022] Those skilled in the art should understand that in the disclosure of this utility model, the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They 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. Therefore, the above terms should not be construed as a limitation of this utility model.

[0023] Example 1

[0024] like Figure 1-3 As shown, the feeding device for this bulk density test includes a tripod body 31, an upper funnel 33, and a support plate 34. A magnet 35 is provided on the support plate 34 and is located at the center of the support plate 34. A magnet 41 is provided at the bottom of the capacity cylinder 4 and is located at the center of the bottom of the capacity cylinder 4.

[0025] Preferably, the tripod body 31 is provided with an adjustable support foot 32 at the bottom, and the tripod body 31 can be adjusted by the adjustable support foot 32 to keep it in a horizontal state.

[0026] Preferably, both magnet 35 and magnet 41 are circular, and magnet 41 and magnet 35 are in a state of attraction between opposite poles, so that the measuring cylinder 4 and the upper funnel 33 are on the same vertical axis, ensuring that the measuring cylinder 4 and the upper funnel 33 always maintain the same position during each measurement, thus ensuring the accuracy of multiple measurement results.

[0027] Example 2

[0028] 1) Overall assembly of the device

[0029] First, remove the tripod 31 and place it stably on a level test platform. The three support legs of the tripod 31 should ensure full contact with the platform surface to provide a stable support structure. If the test platform surface is uneven, the tripod 31 can be leveled by adjusting the adjustable support legs 32. The adjustable support legs 32 have a threaded structure; their extension length can be adjusted by rotation, thereby achieving fine-tuning of the height and ensuring the stability of the entire device in the horizontal direction, reducing the impact of device tilt on the test results.

[0030] Install the upper funnel 33 on the top of the tripod body 31. The upper funnel 33 and the tripod body 31 can be connected by welding or bolts to ensure a firm connection. The discharge port of the upper funnel 33 is vertically downward and located in the center of the tripod body 31. This ensures that the collected material falls accurately into the lower capacity cylinder 4.

[0031] A support plate 34 is installed at the bottom of the tripod body 31. The support plate 34 is fixed to the tripod body 31 by welding or bolts to ensure the stability of the connection and prevent shaking or displacement during the test.

[0032] 2) Magnet installation and debugging

[0033] Take a circular magnet 35 and place it precisely at the center of the support plate 34. A circular groove can be pre-set in the center of the support plate 34, and the magnet 35 can be tightly embedded in the groove to fix its position and prevent it from shifting. The depth and diameter of the groove should be adapted to the size of the magnet 35 so that the magnet 35 is stably placed in the groove, and its surface is flush with the surface of the support plate 34, so as not to affect the placement of the capacity cylinder 4 and subsequent testing operations.

[0034] Install magnet 41 at the center of the bottom of the measuring cylinder 4. Use strong adhesive to attach magnet 41 to the bottom of the measuring cylinder 4, ensuring that magnet 41 is firmly attached and accurately centered. When attaching, ensure that the magnetic poles of magnet 41 correspond to those of magnet 35 to achieve the effect of opposite poles attracting, so that the measuring cylinder 4 can be accurately attached to the support plate 34 and kept on the same vertical axis as the upper funnel 33.

[0035] After installation, a simple test is conducted to verify the magnet's adsorption effect and coaxiality. The measuring cylinder 4 is placed on the support plate 34 to check if it can be quickly and accurately adsorbed into the predetermined position. Simultaneously, check if the central axis of the measuring cylinder 4 coincides with that of the upper funnel 33. If there is a deviation, fine-tune the position or installation angle of the magnet to ensure that the coaxiality of both meets the test requirements.

[0036] 3) The fit between the measuring cylinder and other components

[0037] A handle is installed on the volumetric cylinder 4. The handle can be fixed to the side of the volumetric cylinder 4 by welding or riveting. The shape and size of the handle should be easy for the operator to grip and apply force, ensuring that the operation of the volumetric cylinder 4 is easy and stable when picking it up, and avoiding the volumetric cylinder 4 from falling or colliding due to improper operation, which would affect the accuracy and service life of the testing device.

[0038] During the bulk density test, the operator first places the empty container 4 on the support plate 34 using the handle. The attraction between magnet 35 and magnet 41 automatically positions the container 4 coaxially with the upper funnel 33. Next, the aggregate is conveyed to the upper funnel 33 via other conveying equipment or manually, and then falls into the container 4. During the falling process, because the relative position of the container 4 and the upper funnel 33 remains stable, the aggregate can accumulate evenly and stably within the container 4, reducing differences in the accumulation pattern caused by inconsistent falling positions, thereby improving the accuracy and repeatability of the bulk density test results.

[0039] After the test is completed, the operator can easily remove the full-filled aggregate cylinder 4 from the support plate 34 using the handle to perform subsequent weighing, data recording, and unloading operations. The entire process is simple and efficient, greatly improving testing efficiency and convenience.

[0040] Through the above specific embodiments, the material feeding device for bulk density testing of this utility model can effectively achieve its design purpose, accurately and stably test the bulk density of aggregates, and provide reliable parameter basis for concrete mix design. It also has advantages such as simple operation, high stability, and high measurement accuracy, and has good application prospects and practical value in the field of concrete aggregate testing. In actual production and use, the various components of the device can be further optimized and improved according to specific needs and conditions to better meet the needs of different users and actual testing requirements.

[0041] The parts of this utility model not described in detail are existing technologies, therefore, this utility model does not describe them in detail.

[0042] It is understood that the term "a" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of an element can be one, while in another embodiment, the number of the element can be multiple, and the term "a" should not be understood as a limitation on the number.

[0043] Although this document uses a considerable amount of technical terminology, the possibility of using other terms is not excluded. These terms are used merely for the convenience of describing and explaining the essence of this utility model; interpreting them as any additional limitation would contradict the spirit of this utility model.

[0044] This utility model is not limited to the above-described preferred embodiment. Anyone can derive other forms of products under the guidance of this utility model. However, regardless of any changes made to their shape or structure, any technical solution that is the same as or similar to this utility model falls within the protection scope of this utility model.

Claims

1. A feeding device for bulk density testing, used for detecting coarse aggregate in concrete, characterized in that, It includes a tripod body (31), an upper funnel (33) disposed on the top of the tripod body (31), a support plate (34) disposed on the bottom of the tripod body (31), and a capacity cylinder (4) disposed on the support plate (34); A magnet (35) is provided on the support plate (34), and the magnet (35) is located at the center of the support plate (34); The bottom of the capacity cylinder (4) is provided with a magnet 2 (41), which is located at the center of the bottom of the capacity cylinder (4); By using magnet one (35) and magnet two (41) to maintain the attraction between opposite poles, the container (4) and the upper funnel (33) are aligned on the same vertical axis.

2. The feeding device for bulk density testing according to claim 1, characterized in that, The tripod (31) is provided with adjustable support feet (32) at the bottom.

3. The feeding device for bulk density testing according to claim 1, characterized in that, Both magnet one (35) and magnet two (41) are circular.

4. A feeding device for bulk density testing according to any one of claims 1-3, characterized in that, The capacity cylinder (4) is provided with a handle.

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