A volumetric cylinder for detecting bleeding rate of low carbon concrete
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- XIANGTAN UNIV
- Filing Date
- 2025-06-06
- Publication Date
- 2026-06-23
AI Technical Summary
Traditional measuring cylinders are inconvenient to operate in concrete bleeding rate testing. They require repeatedly raising and leveling the bottom of the cylinder to absorb visible water, resulting in cumbersome and unstable operation.
A capacity cylinder with a lifting mechanism was designed. The cylinder can be raised and leveled by rotating the jacking screw. The adjustment female plate and male plate of the lifting mechanism work together with the jacking screw to simplify the operation process and ensure stability.
This technology enables stable and reliable operation of the measuring cylinder, simplifies the process of detecting water loss, and improves the convenience and accuracy of the test.
Smart Images

Figure CN224399401U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of concrete technology, and in particular to a volumetric cylinder for detecting the bleeding rate of low-carbon concrete. Background Technology
[0002] The bleeding rate of concrete refers to the percentage of the volume of water that bleeds out of the concrete mixture relative to its total water content. It is an important indicator for evaluating the workability and durability of concrete. In the process of conducting experiments on low-carbon concrete, the detection of the bleeding rate is essential.
[0003] In the traditional process of testing concrete bleeding water, the measuring cylinder used has a relatively simple structure. The specific process of testing the bleeding rate is as follows: concrete is poured in, vibrated, and then the cylinder is covered to allow the water to seep out. After a certain period of time, the cover plate on the cylinder is removed, and a pad is used to lift one side of the bottom of the cylinder. The visible water in the cylinder is then sucked up and collected and measured.
[0004] The aforementioned process of covering the cylinder opening and allowing it to stand still until the bottom of the cylinder is raised with a pad to absorb visible water needs to be repeated multiple times throughout the bleeding rate test. This involves repeatedly moving the cylinder from a flat position to a raised position to absorb visible water and then back to a flat position, resulting in operational inconvenience. Therefore, we have improved upon existing measuring cylinders and proposed a new type of measuring cylinder for detecting the bleeding rate of low-carbon concrete. Utility Model Content
[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing a volumetric cylinder for detecting the bleeding rate of low-carbon concrete.
[0006] To achieve the above objectives, the present invention adopts the following technical solution:
[0007] A volumetric cylinder for detecting the bleeding rate of low-carbon concrete includes a container, a base at the lower part of the container, a rotatable connecting seat connecting one side of the lower outer surface of the container to the base, and a sealing cover at the upper end of the container.
[0008] An installation compartment is provided on the upper surface of the base at the end away from the connecting seat and below the container. An internal threaded sleeve communicating with the installation compartment is inserted into the end face of the base at the end away from the connecting seat. A push screw is installed on the base through the internal threaded sleeve. A push head is installed on the end of the push screw located in the installation compartment.
[0009] The installation compartment is equipped with an inverted V-shaped lifting mechanism on the side away from the internal threaded sleeve. The lifting mechanism includes an adjusting female plate, an adjusting male plate, and a connecting pin. The upper end of the adjusting female plate is concave, and the upper end of the adjusting male plate is inserted into the groove at the upper end of the adjusting female plate. The upper ends of the adjusting female plate and the adjusting male plate are connected together by a connecting pin.
[0010] Preferably, the rotatable connecting seat includes a first connecting head and a second connecting head, the ends of the first connecting head and the second connecting head that are in contact are rotatably connected by a pin, the end of the first connecting head away from the pin is welded to the container, and the end of the second connecting head away from the pin is welded to the base.
[0011] Preferably, the upper end face of the container is provided with a buckle, the buckle and the container are an integral structure, and the container is secured with a rubber ring by the buckle.
[0012] Preferably, the sealing cover is a glass cover, and the lower surface of the sealing cover is in contact with the rubber ring.
[0013] Preferably, a rotating handle is fixedly installed at one end of the push screw located outside the base.
[0014] Preferably, the push head and the push screw are connected by a bearing, and the end of the push head away from the push screw is hemispherical.
[0015] Preferably, the adjusting female plate and the adjusting male plate are rotatably connected by a connecting pin.
[0016] The present invention proposes a volumetric cylinder for detecting the bleeding rate of low-carbon concrete. The beneficial effects are as follows: In the application of this technical solution, by rotating the handle to move the push screw into the installation chamber, the adjusting female plate and the adjusting male plate can be brought closer together, thereby lifting one side of the container cylinder, which is convenient for absorbing the visible water in the cylinder. After the absorption is completed, rotating the push screw in the opposite direction can restore the container cylinder to its initial flat state. After covering it with the sealing cover, the bleeding can be carried out in the next time interval.
[0017] Therefore, during the use of this container, the specific state of the container can be changed simply by rotating the push screw, which is convenient to operate. When one side of the container is lifted by the lifting mechanism, compared with the traditional method of using a pad to lift one side, the state of the container is stable and reliable, thus ensuring the reliability of the operation of absorbing visible water in the container, which is beneficial to use. Attached Figure Description
[0018] Figure 1 This is a cross-sectional view of a capacity cylinder for detecting the bleeding rate of low-carbon concrete proposed in this utility model.
[0019] Figure 2 This is a front view of a measuring cylinder for detecting the bleeding rate of low-carbon concrete proposed in this utility model.
[0020] Figure 3 This is a top view of the base of a capacity cylinder for detecting the bleeding rate of low-carbon concrete, as proposed in this utility model.
[0021] Figure 4 This is a top view of the container tube proposed in this utility model;
[0022] Figure 5 This is a schematic diagram of the state when an existing volumetric cylinder is raised to draw in visible water.
[0023] In the diagram: 1. Container cylinder; 2. Base; 3. First connector; 4. Second connector; 5. Rubber ring; 6. Buckle; 7. Buckle groove; 8. Sealing cover; 9. Installation chamber; 10. Internal threaded sleeve; 11. Push screw; 12. Rotating handle; 13. Push head; 14. Adjusting female plate; 15. Adjusting male plate; 16. Connecting pin. Detailed Implementation
[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0025] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "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, they should not be construed as limitations on this utility model.
[0026] Reference Figure 1-4 A volumetric cylinder for detecting the bleeding rate of low-carbon concrete includes a container 1, a base 2 at the lower part of the container 1, and a rotatable connecting seat connected between one side of the lower outer surface of the container 1 and the base 2. The rotatable connecting seat includes a first connecting head 3 and a second connecting head 4. The ends of the first connecting head 3 and the second connecting head 4 that are in contact with each other are rotatably connected by a pin. The end of the first connecting head 3 away from the pin is welded to the container 1, and the end of the second connecting head 4 away from the pin is welded to the base 2. The container 1 can rotate relative to the base 2 under stress through the connecting seat.
[0027] The upper end of the container 1 is covered with a sealing cover plate 8, and the upper end face of the container 1 is provided with a buckle 6. The buckle 6 and the container 1 are an integral structure. The container 1 is secured with a rubber ring 5 by the buckle 6. The sealing cover plate 8 is a glass cover plate, and the lower surface of the sealing cover plate 8 is in contact with the rubber ring 5. When the sealing cover plate 8 is on, the loss of moisture contained in the container 1 can be reduced, and the accuracy of the water leakage rate detection process can be improved. At the same time, when the container 1 is covered by the sealing cover plate 8, the sealing cover plate 8 and the rubber ring 5 help to ensure the tightness of the fit.
[0028] An installation compartment 9 is provided on the upper surface of the base 2, which is away from the connecting seat and located below the container 1. An internal threaded sleeve 10 that communicates with the installation compartment 9 is inserted into the end face of the base 2 away from the connecting seat. A push screw 11 is installed on the base 2 through the internal threaded sleeve 10. A rotating handle 12 is fixedly installed on the end of the push screw 11 located outside the base 2.
[0029] The push screw 11 is equipped with a push head 13 at one end inside the mounting compartment 9. The push head 13 is connected to the push screw 11 by a bearing, and the end of the push head 13 away from the push screw 11 is hemispherical.
[0030] A V-shaped lifting mechanism is provided on the side of the installation compartment 9 away from the internal threaded sleeve 10. The lifting mechanism includes an adjusting female plate 14, an adjusting male plate 15, and a connecting pin 16. The upper end of the adjusting female plate 14 is concave, and the upper end of the adjusting male plate 15 is inserted into the groove at the upper end of the adjusting female plate 14. The upper ends of the adjusting female plate 14 and the adjusting male plate 15 are connected by the connecting pin 16. The adjusting female plate 14 and the adjusting male plate 15 are rotatably connected by the connecting pin 16. As the pushing screw 11 moves into the installation compartment 9, when it contacts the adjusting female plate 14 and continues to move into the installation compartment 9, the adjusting female plate 14 and the adjusting male plate 15 can move closer together. At this time, the upper ends of the adjusting female plate 14 and the adjusting male plate 15 will move upward to lift one side of the corresponding container cylinder 1.
[0031] In summary: During the application of this technical solution, the container is placed on a vibration table. While keeping the container 1 flat relative to the base 2, the low-carbon concrete to be tested is poured into the container 1. After vibration on the vibration table, the sealing cover 8 is placed on top. At specific intervals, the sealing cover 8 is removed, and the push screw 11 is moved into the installation chamber 9 by rotating the handle 12. This allows the adjusting female plate 14 and adjusting male plate 15 to move closer together, thereby lifting one side of the container 1. This facilitates the absorption of visible water from the container 1. After absorption, the push screw 11 is rotated in the opposite direction to restore the container 1 to its initial flat state. The sealing cover 8 is then placed on top to allow for the next water seepage interval.
[0032] Therefore, during the use of this container, the specific state of the container 1 can be changed simply by rotating the push screw 11, which is convenient to operate. When the container 1 is lifted on one side by the lifting mechanism, compared with the traditional method of using a pad to lift one side, the container 1 is in a stable and reliable state, which ensures the reliability of the operation of absorbing visible water in the container and is beneficial to use.
[0033] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. A volumetric cylinder for detecting the bleeding rate of low-carbon concrete, comprising a holding cylinder (1), characterized in that, The lower part of the container (1) is provided with a base (2), and a rotatable connecting seat is connected between one side of the lower outer surface of the container (1) and the base (2). The upper end of the container (1) is covered with a sealing cover plate (8). The base (2) has an installation compartment (9) on its upper surface away from the connecting seat and below the container (1). An internal threaded sleeve (10) connected to the installation compartment (9) is inserted into the end face of the base (2) away from the connecting seat. A push screw (11) is installed on the base (2) through the internal threaded sleeve (10). A push head (13) is installed on one end of the push screw (11) inside the installation compartment (9). The installation compartment (9) is provided with an inverted V-shaped lifting mechanism on the side away from the internal threaded sleeve (10). The lifting mechanism includes an adjusting female plate (14), an adjusting male plate (15), and a connecting pin (16). The upper end of the adjusting female plate (14) is concave, and the upper end of the adjusting male plate (15) is inserted into the groove at the upper end of the adjusting female plate (14). The upper ends of the adjusting female plate (14) and the adjusting male plate (15) are connected together by a connecting pin (16).
2. A volumetric cylinder for detecting the bleeding rate of low-carbon concrete according to claim 1, characterized in that, The rotatable connecting seat includes a first connecting head (3) and a second connecting head (4). The ends of the first connecting head (3) and the second connecting head (4) that are in contact with each other are rotatably connected by a pin. The end of the first connecting head (3) away from the pin is welded to the container (1), and the end of the second connecting head (4) away from the pin is welded to the base (2).
3. A volumetric cylinder for detecting the bleeding rate of low-carbon concrete according to claim 1, characterized in that, The upper end face of the container (1) is provided with a buckle (6), the buckle (6) and the container (1) are an integral structure, and the container (1) is secured with a rubber ring (5) by the buckle (6).
4. A volumetric cylinder for detecting the bleeding rate of low-carbon concrete according to claim 3, characterized in that, The sealing cover (8) is a glass cover, and the lower surface of the sealing cover (8) is in contact with the rubber ring (5).
5. A volumetric cylinder for detecting the bleeding rate of low-carbon concrete according to claim 1, characterized in that, The push screw (11) is fixedly mounted with a rotating handle (12) at one end outside the base (2).
6. A volumetric cylinder for detecting the bleeding rate of low-carbon concrete according to claim 1, characterized in that, The push head (13) and the push screw (11) are connected by a bearing, and the end of the push head (13) away from the push screw (11) is hemispherical.
7. A volumetric cylinder for detecting the bleeding rate of low-carbon concrete according to claim 1, characterized in that, The adjusting female plate (14) and the adjusting male plate (15) are rotatably connected by a connecting pin (16).