Anti-precipitation device for concrete admixture

By introducing spiral transmission blades, inner wall cleaning boards and nanomaterial sleeves into the concrete admixture device, combined with ultrasonic sensors and intelligent controllers, the problems of admixture precipitation and concentration adjustment are solved, and the stability and automated management of concrete quality are achieved.

CN223085086UActive Publication Date: 2025-07-11SHANDONG KAIYUDA NEW MATERIAL TECH CO LTD
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Patent Information

Application Number
CN202421545310.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-07-02
Publication Date
2025-07-11
Estimated Expiration
2034-07-02

AI Technical Summary

Technical Problem

The existing concrete admixture device lacks self-cleaning function, which causes admixtures to adhere to the inner wall of the equipment, increasing maintenance costs, and fails to effectively prevent precipitation, and cannot automatically adjust the amount and speed of admixtures, affecting the stability of concrete quality.

Method used

The spiral transmission blade and inner wall cleaning board in the anti-precipitation connection cylinder are used to measure the liquid flow rate and volume through an ultrasonic sensor, and the admixture concentration is adjusted in combination with an intelligent controller. The screw and push plate are used to achieve stirring and circulation of admixture, prevent precipitation and maintain stable concentration.

Benefits of technology

Effectively prevent admixture precipitation, maintain the stability of concrete quality, reduce maintenance costs, and realize automatic addition of admixtures and concentration adjustment.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a concrete admixture anti-precipitation device, which belongs to the technical field of concrete, and comprises an anti-precipitation connecting cylinder, the top end of the anti-precipitation connecting cylinder is provided with a transmission hole, and the circumferential surface of the anti-precipitation connecting cylinder is fixedly connected with an ultrasonic sensor. First push plates are rotatably connected to the upper and lower inner walls of an anti-precipitation connecting cylinder, when the concentration is detected to be too low, an operator only needs to rotate a screw rod, so that the screw rod rotates in a threaded hole and pushes a second push plate, and the second push plate slides in a convex limiting hole to push an internal admixture to extrude a one-way valve plate; therefore, the one-way valve plate is opened and closed, and the admixture enters the anti-precipitation connecting cylinder through the ultrasonic sensor, so that the concentration of the admixture in the concrete is increased, and the quality of the concrete in the using process is ensured.
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Description

Technical Field

[0001] The utility model belongs to the technical field of concrete, and particularly relates to a sediment prevention device for concrete admixtures. Background Technique

[0002] A concrete water reducing agent is an admixture that can reduce the required amount of water in concrete or mortar while maintaining the workability of concrete or mortar. During the concrete production process, to ensure the stability and consistency of concrete quality, the water reducing agent needs to be stored and used correctly.

[0003] The authorized publication number "CN211913596U" discloses a sediment prevention device for cement grinding aid processing, which relates to the technical field of cement grinding aid processing. To solve the problem that sediment is likely to occur at the bottom after the existing cement grinding aid storage tank stands still for a long time. A vibration motor is installed on the front end face of the housing of the sediment prevention device. A positioning hole is provided at the middle position of the housing of the sediment prevention device. Adjusting screws are installed at both ends of the housing of the sediment prevention device, and the adjusting screws are threadedly connected to the housing of the sediment prevention device. A runner is installed at one end of the adjusting screw, a bearing is installed at the other end of the adjusting screw, and a clamping plate is installed at one end of the bearing. An electric heating tube is installed on the inner wall of the housing of the sediment prevention device. A spring seat is installed at the lower end of the housing of the sediment prevention device, and four spring seats are provided. A spring mechanism is installed at the lower end of the spring seat, and a support foot is installed at one end of the spring mechanism.

[0004] When the above patent is used, the finished product tank or storage tank of the cement grinding aid can be placed inside the housing of the sediment prevention device, and the tank body can be clamped by the clamping mechanisms on both sides of the housing. Then, under the action of the vibration motor and the spring mechanism, the finished product tank or storage tank can be driven to shake, avoiding sediment at the bottom. However, there are certain deficiencies in the use of the above patent. Microscopic cracks will appear in the spring after long-term use, and these cracks will gradually expand over time, resulting in a decrease in the elastic performance of the spring. The above patent does not have a self-cleaning function, resulting in the adhesion of the admixture to the inner wall of the equipment, increasing the maintenance cost, and it cannot effectively prevent the sedimentation of the admixture and automatically adjust the addition amount and speed of the admixture to ensure the quality stability of the concrete. Content of the Utility Model

[0005] The purpose of the utility model is to provide a sediment prevention device for concrete admixtures, aiming to solve the problems in the existing technology that it does not have a self-cleaning function, resulting in the adhesion of the admixture to the inner wall of the equipment, increasing the maintenance cost, and it cannot effectively prevent the sedimentation of the admixture and automatically adjust the addition amount and speed of the admixture to ensure the quality stability of the concrete.

[0006] To achieve the above purpose, the utility model provides the following technical solutions:

[0007] A device for preventing precipitation of concrete admixture, comprising:

[0008] A precipitation prevention connecting cylinder, a transmission hole is opened at the top end of the precipitation prevention connecting cylinder, an ultrasonic sensor is fixedly connected to the circumferential surface of the precipitation prevention connecting cylinder, a first pushing plate is rotatably connected to the upper and lower inner walls of the precipitation prevention connecting cylinder, a spiral transmission blade is fixedly connected to the circumferential surface of the first pushing plate, a nano material sleeve is fixedly connected to the circumferential inner wall of the precipitation prevention connecting cylinder, and a communication hole is opened at the top end of the precipitation prevention connecting cylinder;

[0009] A motor, which is fixedly connected to the circumferential surface of the first pushing plate;

[0010] A convex limiting hole is opened at the top end of the precipitation prevention connecting cylinder, a second bolt is opened at the top end of the precipitation prevention connecting cylinder, and a threaded hole is opened on the circumferential surface of the precipitation prevention connecting cylinder; and

[0011] A bottom pushing plate, there are five bottom pushing plates, and all five bottom pushing plates are fixedly connected to the circumferential surface of the first pushing plate.

[0012] As a preferred scheme of the present invention, five stirring blades are fixedly connected to the circumferential surface of the first pushing plate, and inner wall cleaning plates are fixedly connected to the top ends of all five bottom pushing plates.

[0013] As a preferred scheme of the present invention, a limiting ring is fixedly connected to the upper inner wall of the precipitation prevention connecting cylinder, a transmission hole is opened at the top end of the precipitation prevention connecting cylinder, a limiting groove is opened at the top end of the precipitation prevention connecting cylinder, and a limiting cover is movably clamped in the limiting groove.

[0014] As a preferred scheme of the present invention, a liquid level sensor is installed on the circumferential surface of the precipitation prevention connecting cylinder, and a second plastic ring is fixedly connected to the outer surface of the liquid level sensor.

[0015] As a preferred scheme of the present invention, a transmission pipe is fixedly connected to the bottom end of the precipitation prevention connecting cylinder, a convex limiting hole is installed on the circumferential inner wall of the transmission pipe, and three supporting seats are fixedly connected to the bottom end of the precipitation prevention connecting cylinder.

[0016] As a preferred scheme of the present invention, the communication hole, the convex limiting hole and the ultrasonic sensor are communicated in sequence, a one-way valve plate is rotatably connected in the convex limiting hole, a screw rod is threadedly connected in the threaded hole, and a second pushing plate is rotatably connected to the outer surface of the screw rod.

[0017] As a preferred scheme of the present invention, two L-shaped connecting plates are fixedly connected to the circumferential surface of the precipitation prevention connecting cylinder.

[0018] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0019] 1. In this solution, in order to prevent the precipitation of admixtures in the concrete, the operator only needs to start the motor through the intelligent controller. After startup, the output shaft of the motor will immediately drive the first push plate to rotate, and then drive the spiral transmission blades on the surface, five inner wall cleaning plates, and five stirring blades to rotate synchronously through the first push plate. Among them, the function of the five inner wall cleaning plates is to stir and push the precipitated concrete and admixtures on the bottom inner wall of the anti-precipitation connecting cylinder, while the spiral transmission blades are responsible for stirring the admixtures and concrete in a spiral shape to the top inner wall of the anti-precipitation connecting cylinder. In addition, with the cooperation of the five first push plates, it is possible to fully stir and mix the admixtures and concrete, thereby effectively preventing the precipitation of admixtures. The nano-material sleeve is fixed on the circumferential inner wall of the anti-precipitation connecting cylinder by bonding. Its function is to prevent the admixtures from adhering to the inner wall of the anti-precipitation connecting cylinder. At the same time, the nano-material sleeve can also assist the five inner wall cleaning plates to more easily clean the admixtures attached to the circumferential inner wall of the anti-precipitation connecting cylinder. The ultrasonic sensor is used to measure the flow rate and volume of the liquid, so as to indirectly calculate the concentration of the admixtures. When the detected concentration is too low, the operator only needs to rotate the screw rod, so that the screw rod rotates in the threaded hole and pushes the second push plate. In this way, the second push plate will slide in the convex-shaped limiting hole, and then push the internal admixtures, so that it squeezes the one-way valve piece, thereby opening and closing the one-way valve piece, allowing the admixtures to enter the anti-precipitation connecting cylinder through the ultrasonic sensor, so as to increase the concentration of the admixtures in the concrete and ensure the quality of the concrete during use.

[0020] 2. In this solution, the communication hole, the convex-shaped limiting hole, and the ultrasonic sensor together constitute the channel for the flow of the admixtures. Through them, the concentration of the admixtures can be precisely adjusted. When the operator rotates the screw rod, the screw rod will extend in the threaded hole and drive the second push plate to slide on the circumferential inner wall of the convex-shaped limiting hole. Such an operation enables the second push plate to push the admixtures in the convex-shaped limiting hole, and then squeeze and open the second push plate, making it open and close. As the admixtures are squeezed, it will flow into the anti-precipitation connecting cylinder through the transmission hole, thereby realizing the adjustment of the concentration of the admixtures in the concrete. This process ensures that the concrete can maintain a consistent quality during use. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The drawings are used to provide a further understanding of the present utility model and constitute a part of the specification. Together with the embodiments of the present utility model, they are used to explain the present utility model and do not constitute a limitation to the present utility model. In the drawings:

[0022] Figure 1 is a three-dimensional view of the present utility model;

[0023] Figure 2 is a first-perspective exploded three-dimensional view of the present utility model;

[0024] Figure 3 is the first - perspective sectional three - dimensional view of the present utility model;

[0025] Figure 4 is the second - perspective sectional three - dimensional view of the present utility model;

[0026] Figure 5 In the present utility model Figure 4 is the partial enlarged view at position A.

[0027] In the figure: 1, anti - precipitation connecting cylinder; 2, L - shaped connecting plate; 201, nano - material sleeve; 3, ultrasonic sensor; 4, limiting groove; 5, first bolt; 6, first plastic ring; 7, screw rod; 8, limiting ring; 9, limiting cover; 10, first pushing plate; 11, stirring blade; 12, spiral conveying blade; 13, conveying hole; 14, inner wall cleaning plate; 15, bottom pushing plate; 16, support seat; 17, motor; 18, liquid level sensor; 19, second plastic ring; 20, conveying pipe; 21, convex limiting hole; 22, check valve plate; 23, second pushing plate; 24, second bolt; 25, communication hole. Specific embodiments

[0028] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0029] Embodiment 1

[0030] Please refer to Figures 1 - 5 , the present utility model provides the following technical solutions:

[0031] A device for preventing precipitation of concrete admixtures, comprising:

[0032] An anti - precipitation connecting cylinder 1, a conveying hole 13 is opened at the top end of the anti - precipitation connecting cylinder 1, an ultrasonic sensor 3 is fixedly connected to the circumferential surface of the anti - precipitation connecting cylinder 1, a first pushing plate 10 is rotatably connected to the upper and lower inner walls of the anti - precipitation connecting cylinder 1, a spiral conveying blade 12 is fixedly connected to the circumferential surface of the first pushing plate 10, a nano - material sleeve 201 is fixedly connected to the circumferential inner wall of the anti - precipitation connecting cylinder 1, and a communication hole 25 is opened at the top end of the anti - precipitation connecting cylinder 1;

[0033] A motor 17, the motor 17 is fixedly connected to the circumferential surface of the first pushing plate 10;

[0034] Convex limiting hole 21 is provided at the top end of the anti-settling connection cylinder 1. A second bolt 24 is provided at the top end of the anti-settling connection cylinder 1, and threaded holes are provided on the circumferential surface of the anti-settling connection cylinder 1; and

[0035] Bottom pushing plates 15, there are five bottom pushing plates 15, and the five bottom pushing plates 15 are all fixedly connected to the circumferential surface of the first pushing plate 10.

[0036] In a specific embodiment of the present invention, the limiting groove 4 and the limiting cover 9 are matched in shape, so that the limiting cover 9 can be easily snapped into the limiting groove 4 to achieve the closure of the transmission hole 13. The circumferential radius of the limiting groove 4 is smaller than that of the transmission hole 13. When the spiral transmission blade 12 stirs the admixture in the anti-settling connection cylinder 1, the two first plastic rings 6 are fixed to the circumferential surface of the anti-settling connection cylinder 1 by bonding for protecting the outer surface of the anti-settling connection cylinder 1. The first bolt 5 is used to fix the limiting cover 9 in the limiting groove 4. The spiral transmission blade 12 will spirally transmit the admixture on the inner wall of the bottom of the anti-settling connection cylinder 1 to the inner wall of the top of the anti-settling connection cylinder 1. The convex limiting hole 21 and the bottom end of the anti-settling connection cylinder 1 communicate with each other. The transmission pipe 20 is fixed in the convex limiting hole 21 by a detachable connection method. The liquid level sensor 18 is used to detect the concrete liquid level in the anti-settling connection cylinder 1. The second plastic ring 19 is used to protect the liquid level sensor 18. The valve plate of the transmission pipe 20 is used to close the convex limiting hole 21. When the spiral transmission blade 12 spirally transmits the admixture on the inner wall of the bottom of the anti-settling connection cylinder 1 upward, the five stirring blades 11 will stir it to prevent the admixture from settling in the concrete. The nano-material sleeve 201 is fixed to the circumferential inner wall of the anti-settling connection cylinder 1 by bonding. The nano-material sleeve 201 can prevent the admixture from adhering to the circumferential inner wall of the anti-settling connection cylinder 1. At the same time, the nano-material sleeve 201 can also facilitate the five inner wall cleaning plates 14 to clean the admixture adhering to the circumferential inner wall of the anti-settling connection cylinder 1. The two L-shaped connecting plates 2 are fixed to the circumferential surface of the anti-settling connection cylinder 1 by welding. Through the two L-shaped connecting plates 2, it is convenient to connect the anti-settling connection cylinder 1 with external equipment, and at the same time, the stability of the anti-settling connection cylinder 1 can be greatly increased during transportation. The motor 17 is fixed to the bottom end of the anti-settling connection cylinder 1 by a detachable connection method. The output end of the motor 17 is fixed to the circumferential surface of the first pushing plate 10. The motor 17 is electrically connected to an external intelligent controller. It should be noted that: the specific models of the ultrasonic sensor 3 and the motor 17 to be used are selected by those skilled in the relevant art, and the above about the ultrasonic sensor 3, the motor 17, etc. all belong to the prior art, and this solution will not be elaborated.

[0037] Specifically, please refer to Figures 1 - 5, on the circumferential surface of the first push plate 10, five stirring blades 11 are fixedly connected, and on the top ends of the five bottom pushing plates 15, inner wall cleaning plates 14 are fixedly connected.

[0038] In this embodiment: The five stirring blades 11 are fixed on the circumferential surface of the first push plate 10 by welding. The five stirring blades 11 can fully stir the admixture and concrete on the inner circumferential wall of the anti-sediment connecting cylinder 1. The five inner wall cleaning plates 14 can push the admixture and concrete on the bottom inner wall of the anti-sediment connecting cylinder 1. When it is necessary to discharge the admixture and concrete, through the rotation of the five inner wall cleaning plates 14, the admixture and concrete can be quickly discharged through the transfer pipe 20.

[0039] Specifically, please refer to Figures 1 - 3 , on the upper inner wall of the anti-sediment connecting cylinder 1, a limiting ring 8 is fixedly connected. On the top end of the anti-sediment connecting cylinder 1, a transfer hole 13 is opened. On the top end of the anti-sediment connecting cylinder 1, a limiting groove 4 is opened, and a limiting cover 9 is movably clamped in the limiting groove 4.

[0040] In this embodiment: The limiting ring 8 is fixed on the upper inner wall of the anti-sediment connecting cylinder 1 by welding. The limiting ring 8 is used to limit the five inner wall cleaning plates 14 to prevent the five inner wall cleaning plates 14 from shifting during stirring, so that the five inner wall cleaning plates 14 can closely fit on the circumferential inner wall of the anti-sediment connecting cylinder 1. Along with the rotation of the five inner wall cleaning plates 14, the admixture attached to the circumferential inner wall of the nano-material sleeve 201 can be quickly scraped off.

[0041] Specifically, please refer to Figure 3 , at the bottom end of the anti-sediment connecting cylinder 1, a transfer pipe 20 is fixedly connected. On the circumferential inner wall of the transfer pipe 20, a convex limiting hole 21 is installed. At the bottom end of the anti-sediment connecting cylinder 1, three support seats 16 are fixedly connected.

[0042] In this embodiment: The transfer pipe 20 is used for the flow of the admixture and concrete in the anti-sediment connecting cylinder 1. The convex limiting hole 21 is used to close the space in the transfer pipe 20. The three support seats 16 are used to support the bottom end of the anti-sediment connecting cylinder 1 to increase the height of the anti-sediment connecting cylinder 1 itself.

[0043] Specifically, please refer to Figures 1 - 5 , the communication hole 25, the convex limiting hole 21 and the ultrasonic sensor 3 are connected in sequence. In the convex limiting hole 21, a one-way valve plate 22 is rotatably connected. In the threaded hole, a screw rod 7 is threadedly connected. On the outer surface of the screw rod 7, a second push plate 23 is rotatably connected.

[0044] In this embodiment: The communication holes 25, the convex limiting holes 21, and the ultrasonic sensor 3 are used for the circulation of the admixture to adjust the concentration of the admixture. The screw 7 matches the threaded hole. When the screw 7 is rotated, the screw 7 will extend in the threaded hole and drive the second push plate 23 to slide on the circumferential inner wall of the convex limiting hole 21, so that the second push plate 23 can push the admixture in the convex limiting hole 21, causing the admixture to squeeze open and close the second push plate 23. The admixture will flow into the anti-sediment connecting cylinder 1 through the transmission hole 13 to adjust the concentration of the admixture in the concrete.

[0045] Specifically, please refer to Figures 1 - 3 , and two L-shaped connecting plates 2 are fixedly connected to the circumferential surface of the anti-sediment connecting cylinder 1.

[0046] In this embodiment: The two L-shaped connecting plates 2 are used to facilitate the fixation of the anti-sediment connecting cylinder 1 and external connectors. At the same time, the two L-shaped connecting plates 2 can also protect the outer surface of the anti-sediment connecting cylinder 1 to reduce the bumps on the surface of the anti-sediment connecting cylinder 1.

[0047] The working principle and usage process of the present utility model: To prevent the precipitation of the admixture in the concrete, the operator only needs to use the intelligent controller to start the motor 17. The output shaft of the motor 17 will immediately drive the first push plate 10 to rotate, so that the first push plate 10 drives the spiral transmission blades 12, the five inner wall cleaning plates 14, and the five stirring blades 11 on its surface to rotate synchronously. The five inner wall cleaning plates 14 are used to stir and push the precipitated concrete and admixture on the bottom inner wall of the anti-sediment connecting cylinder 1, while the spiral transmission blades 12 are used to helically stir the admixture and concrete to the top inner wall of the anti-sediment connecting cylinder 1, and cooperate with the five first push plates 10 to fully stir and mix the admixture and concrete to prevent the precipitation of the admixture. The nano material sleeve 201 is fixed to the circumferential inner wall of the anti-sediment connecting cylinder 1 by bonding. The nano material sleeve 201 can prevent the admixture from adhering to the circumferential inner wall of the anti-sediment connecting cylinder 1. At the same time, the nano material sleeve 201 can also facilitate the five inner wall cleaning plates 14 to clean the admixture adhering to the circumferential inner wall of the anti-sediment connecting cylinder 1. The ultrasonic sensor 3 is used to measure the flow rate and volume of the liquid and indirectly calculate the concentration of the admixture. When the concentration is too low, the operator only needs to rotate the screw 7, so that the screw 7 rotates in the threaded hole and pushes the second push plate 23 to slide in the convex limiting hole 21 and drive the second push plate 23 to push the internal admixture, causing the admixture to squeeze the one-way valve piece 22, so that the one-way valve piece 22 opens and closes, and the admixture will enter the anti-sediment connecting cylinder 1 through the ultrasonic sensor 3 to increase the consistency of the admixture in the concrete to ensure the quality of the concrete during use.

[0048] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments or perform equivalent replacements on some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A device for preventing precipitation of concrete admixtures, characterized in that Including: A sediment-preventing connecting cylinder (1), a transmission hole (13) is opened at the top end of the sediment-preventing connecting cylinder (1), an ultrasonic sensor (3) is fixedly connected to the circumferential surface of the sediment-preventing connecting cylinder (1), a first pushing plate (10) is rotatably connected to the upper and lower inner walls of the sediment-preventing connecting cylinder (1), a spiral transmission blade (12) is fixedly connected to the circumferential surface of the first pushing plate (10), a nano material sleeve (201) is fixedly connected to the circumferential inner wall of the sediment-preventing connecting cylinder (1), and a communication hole (25) is opened at the top end of the sediment-preventing connecting cylinder (1); A motor (17), the motor (17) is fixedly connected to the circumferential surface of the first pushing plate (10); A convex limiting hole (21), the convex limiting hole (21) is opened at the top end of the sediment-preventing connecting cylinder (1), a second bolt (24) is opened at the top end of the sediment-preventing connecting cylinder (1), and a threaded hole is opened on the circumferential surface of the sediment-preventing connecting cylinder (1); and A bottom pushing plate (15), there are five bottom pushing plates (15), and all five bottom pushing plates (15) are fixedly connected to the circumferential surface of the first pushing plate (10).

2. The anti-settling device for a concrete admixture according to claim 1, wherein: Five stirring blades (11) are fixedly connected to the circumferential surface of the first pushing plate (10), and inner wall cleaning plates (14) are fixedly connected to the top ends of all five bottom pushing plates (15).

3. A device for preventing precipitation of a concrete admixture according to claim 2, characterized in that: A limiting ring (8) is fixedly connected to the upper inner wall of the sediment-preventing connecting cylinder (1), a transmission hole (13) is opened at the top end of the sediment-preventing connecting cylinder (1), a limiting groove (4) is opened at the top end of the sediment-preventing connecting cylinder (1), and a limiting cover (9) is movably clamped in the limiting groove (4).

4. The anti-settling device for concrete admixture according to claim 3, wherein: A liquid level sensor (18) is installed on the circumferential surface of the sediment-preventing connecting cylinder (1), and a second plastic ring (19) is fixedly connected to the outer surface of the liquid level sensor (18).

5. The anti-settling device for concrete admixture according to claim 4, characterized in that: A transmission pipe (20) is fixedly connected to the bottom end of the sediment-preventing connecting cylinder (1), a convex limiting hole (21) is installed on the circumferential inner wall of the transmission pipe (20), and three supporting seats (16) are fixedly connected to the bottom end of the sediment-preventing connecting cylinder (1).

6. The anti-settling device for concrete admixture according to claim 5, characterized in that: The communication hole (25), the convex limiting hole (21) and the ultrasonic sensor (3) are communicated in sequence, a one-way valve plate (22) is rotatably connected in the convex limiting hole (21), a screw rod (7) is threadedly connected in the threaded hole, and a second pushing plate (23) is rotatably connected to the outer surface of the screw rod (7).

7. The anti - precipitation device for concrete admixture according to claim 6, characterized in that: Two L-shaped connecting plates (2) are fixedly connected to the circumferential surface of the sediment-preventing connecting cylinder (1).

Citation Information

Patent Citations

  • Anti-precipitation device for processing cement grinding aid

    CN211913596U