Cement paste fluidity tester capable of being leveled and facilitating measurement of paste flowing time

Abstract

The utility model discloses a cement paste fluidity tester capable of leveling and convenient to measure the flowing time of paste, which relates to the technical field of testing devices and comprises a leveling support, an inverted cone barrel, a movable opening, a capacity barrel and a gravity sensing chip, the inverted cone barrel is arranged on the leveling support, the movable opening is connected to the bottom of the inverted cone barrel, the capacity barrel is arranged under the inverted cone barrel, and the gravity sensing chip is arranged on the capacity barrel. A gravity sensing piece is arranged at the bottom of the capacity barrel. The utility model provides the cement paste fluidity tester which can be leveled and is convenient for measuring the flowing time of the paste, the inverted cone barrel can be quickly adjusted to be in a vertical state on any ground through the high-precision leveled bracket, the environmental adaptability is good, and meanwhile, the gravity sensing sheet is adopted to replace the traditional visual observation method, so that the manual error is favorably eliminated, and the measurement accuracy is improved. And the consistency and reliability of flow time measurement are ensured.

Description

Technical Field

[0001] This utility model relates to the field of testing device technology, and more specifically, to a cement slurry fluidity tester that is adjustable and convenient for measuring slurry flow time. Background Technology

[0002] In concrete engineering and the construction industry, the fluidity of cement paste is a crucial parameter for evaluating its workability, directly impacting construction efficiency and the final quality of concrete. The traditional method for testing the fluidity of cement paste, the inverted cone method (also known as the flow cone method), is based on international standard ISO 2431 and Chinese national standard GB / T 2419. This method determines fluidity by measuring the time it takes for a certain volume of cement paste to flow through a standard-sized inverted cone mold within a specific timeframe.

[0003] Although the inverted cone method is widely used, it still has the following drawbacks in actual operation: 1. During the test, the determination of the slurry flow time depends on the operator's visual observation, which is prone to large human error; 2. Traditional inverted cone molds are usually supported by fixed triangular brackets. This structure cannot be adjusted to be horizontal, making it difficult to ensure the vertical stability of the inverted cone when used on uneven ground, resulting in poor environmental adaptability; 3. In outdoor or industrial environments, due to uneven ground, vibration and other factors, traditional equipment is difficult to conduct flowability tests quickly and accurately. Utility Model Content

[0004] To overcome the shortcomings of existing technologies, this invention proposes a cement slurry flowability measuring instrument that is adjustable and convenient for measuring slurry flow time. The high-precision adjustable leveling bracket can quickly adjust the inverted cone to a vertical position on any ground surface, making it highly adaptable to different environments. At the same time, the use of a gravity sensor instead of the traditional visual observation method helps to eliminate human error and ensure the consistency and reliability of flow time measurement.

[0005] To achieve this objective, the present invention adopts the following technical solution:

[0006] This utility model provides a cement slurry flowability tester that is adjustable and convenient for measuring slurry flow time. It includes an adjustable support, an inverted cone, a hinged opening, a capacity tank, and a gravity sensor. The inverted cone is mounted on the adjustable support, and the bottom of the inverted cone is connected to the hinged opening. The capacity tank is located directly below the inverted cone, and the bottom of the capacity tank is equipped with a gravity sensor.

[0007] In a preferred embodiment of this invention, a level is provided on one side of the inverted cone barrel.

[0008] In a preferred embodiment of this invention, a shock-absorbing rubber ring is also provided on the top of the adjustable leveling bracket.

[0009] In a preferred embodiment of this invention, the adjustable leveling bracket and the inverted cone barrel are detachably connected.

[0010] In the preferred embodiment of this invention, the valve is a manual valve.

[0011] The beneficial effects of this utility model are as follows:

[0012] This invention presents a cement slurry flowability tester that is adjustable and convenient for measuring slurry flow time. A high-precision adjustable leveling bracket allows for quick adjustment of the inverted cone to a vertical position on any surface, improving testing convenience and efficiency while eliminating measurement errors caused by equipment tilt, thus enhancing the accuracy of flowability testing and providing good environmental adaptability. The use of a gravity sensor instead of traditional visual observation helps eliminate human error, ensuring the consistency and reliability of flow time measurements. Furthermore, the flow time is directly recorded by the gravity sensor, eliminating the need for manual timing and automating data acquisition, thereby improving data processing speed and accuracy. The included shock-absorbing rubber ring isolates vibrations, reducing errors caused by external vibration interference (such as vibrations from the experimental site), thus maintaining high-precision testing under varying environmental conditions, including temperature fluctuations and uneven ground, enhancing the equipment's practicality. The device features a detachable design, facilitating cleaning and maintenance, reducing maintenance time and costs, and extending the equipment's service life. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of a cement slurry fluidity tester that is adjustable and convenient for measuring slurry flow time, provided by a specific embodiment of this utility model.

[0014] In the picture:

[0015] 1. Adjustable leveling bracket; 2. Inverted cone barrel; 3. Adjustable opening; 4. Capacity tank; 5. Gravity sensor; 6. Level. Detailed Implementation

[0016] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0017] like Figure 1As shown, the embodiment provides a cement slurry flowability tester that is adjustable and convenient for measuring slurry flow time. It includes an adjustable support 1, an inverted cone 2, a hinged spout 3, a capacity tank 4, and a gravity sensor 5. The inverted cone 2 is mounted on the adjustable support 1, with the hinged spout 3 connected to its bottom. The capacity tank 4 is positioned directly below the inverted cone 2, and the gravity sensor 5 is located at its bottom. In this embodiment, the adjustable support 1 supports the inverted cone 2, and its leveling mechanism employs a precise spiral lifting structure to achieve highly accurate vertical adjustment. This ensures that the inverted cone 2 remains vertical on any surface, guaranteeing that the cement slurry flows out in free fall, minimizing external interference. The inverted cone 2 is an inverted conical structure used to contain the cement slurry and measure its flow time. The dimensions of the inverted cone 2 are strictly designed according to international standards to ensure the consistency and comparability of the test results. The hinged spout 3 is located at the bottom outlet of the inverted cone 2 and can be manually opened and closed. The flow-outlet of the measuring tank 4 is aligned with that of the inverted cone tank 2 to collect the flowing cement slurry. The gravity sensor 5 monitors the change in gravity of the measuring tank 4 over time as the slurry flows out, thus accurately recording the slurry flow time. This eliminates the subjective errors of traditional visual observation and improves the accuracy of flow time measurement. Furthermore, the gravity sensor 5 is electrically connected to a data acquisition terminal, allowing the measured data to be sent to the terminal for aggregation and processing, and making the test results visualized. The preferred data acquisition terminal is a PC, mobile phone, etc.

[0018] Specifically, a level 6 is provided on one side of the inverted cone barrel 2. In this embodiment, the level 6 can cooperate with the adjustable leveling bracket 1 to achieve precise fine-tuning of the inverted cone barrel 2, thereby ensuring that the inverted cone barrel 2 is arranged vertically.

[0019] Specifically, the top of the adjustable leveling bracket 1 is also equipped with a shock-absorbing rubber ring. In this embodiment, the shock-absorbing rubber ring can isolate vibration and reduce errors caused by external vibration interference (such as vibration of the test site), thereby maintaining high-precision testing under varying environmental conditions, including temperature fluctuations and uneven ground, enhancing the practicality of the equipment.

[0020] Specifically, the adjustable leveling bracket 1 and the inverted cone barrel 2 are detachably connected. In this embodiment, the detachable design facilitates cleaning and maintenance, reduces maintenance time and costs, and extends the service life of the equipment.

[0021] Specifically, valve 3 is a manual valve.

[0022] The method of using this utility model is as follows:

[0023] 1. Place the adjustable leveling bracket 1 firmly on the horizontal reference surface, then assemble the inverted cone 2 into the predetermined position of the adjustable leveling bracket 1, and then observe the level 6 to adjust it until the small bubble in the level 6 is centered within the red circle, ensuring that the inverted cone 2 reaches a vertical state, thus providing a guarantee for subsequent experiments.

[0024] 2. After leveling the inverted cone 2, close the hinge 3. Under the condition of an ambient temperature of 20±2℃, accurately measure and inject 1725ml±5ml of pure water into the inverted cone 2 to ensure that the volume of the liquid medium is controlled within the specified tolerance range. Then, make a clear mark on the liquid surface with a water-resistant marker so that an equal amount of cement slurry can be poured in the subsequent steps to ensure the volume of cement poured in the experiment.

[0025] 3. Open the hinge 3 so that the water in the inverted cone 2 flows out naturally under the action of gravity and falls into the capacity tank 4 below. The gravity sensor 5 installed at the bottom of the capacity tank 4 monitors the change of gravity of the water in the capacity tank 4 over time in real time, and records the time required for the water to flow out completely through the data acquisition terminal connected to it.

[0026] 4. Completely drain the water from the volumetric container 4, and carefully wipe the inside of the inverted conical container 2 with a damp towel that cannot be wrung out to remove residual liquid and prevent interference with subsequent experiments. Then close the hinge 3 of the inverted conical container 2 to prepare for the cement slurry test.

[0027] 5. Pour the pre-prepared cement slurry into the inverted cone 2 until the slurry level reaches the previously marked position, ensuring that the volume of the cement slurry is equal to the volume of water in the calibration stage;

[0028] 6. Open the valve 3 again, and the cement slurry flows out under gravity and falls into the capacity tank 4. The gravity sensor 5 monitors the change in the mass of the cement slurry in the capacity tank 4 over time in real time, and records the time required for the cement slurry to flow out of the inverted cone tank 2 and be completely emptied through the data acquisition terminal.

[0029] This utility model has been described through preferred embodiments. Those skilled in the art will understand that various changes or equivalent substitutions can be made to these features and embodiments without departing from the spirit and scope of this utility model. This utility model is not limited to the specific embodiments disclosed herein; other embodiments falling within the scope of the claims of this application are all within the protection scope of this utility model.

Claims

1. A cement slurry fluidity tester that is adjustable and convenient for measuring slurry flow time, characterized in that: It includes an adjustable leveling bracket (1), an inverted cone barrel (2), a hinged opening (3), a capacity barrel (4), and a gravity sensor plate (5). The adjustable leveling bracket (1) is equipped with an inverted cone barrel (2), the bottom of the inverted cone barrel (2) is connected to the hinged opening (3), the capacity barrel (4) is located directly below the inverted cone barrel (2), and the bottom of the capacity barrel (4) is equipped with a gravity sensor plate (5).

2. The cement slurry flowability tester that is adjustable and convenient for measuring slurry flow time according to claim 1, characterized in that: A level (6) is provided on one side of the inverted cone (2).

3. The cement slurry flowability tester that is adjustable and convenient for measuring slurry flow time according to claim 1, characterized in that: The adjustable leveling bracket (1) is also equipped with a shock-absorbing rubber ring at the top.

4. The cement slurry flowability tester that is adjustable and convenient for measuring slurry flow time according to claim 1, characterized in that: The adjustable leveling bracket (1) and the inverted cone barrel (2) are detachably connected.

5. The cement slurry flowability tester that is adjustable and convenient for measuring slurry flow time according to claim 1, characterized in that: The valve (3) is a manual valve.

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