Device for detecting volume weight of concrete mixture
By introducing a bulk density hopper, a weighing sensor, and a spiral blade structure driven by a drive motor into the concrete mixture bulk density testing device, the problem of laborious cleaning of the concrete mixture inside the capacity cylinder after bulk density testing is solved, achieving rapid material feeding and efficient testing.
Patent Information
- Application Number
- CN202422811931.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-19
- Publication Date
- 2025-10-28
- Estimated Expiration
- 2034-11-19
AI Technical Summary
Existing concrete mixture bulk density testing devices are laborious to clean the concrete mixture inside the capacity cylinder and are difficult to discharge quickly.
It adopts a density hopper combined with a weighing sensor and a spiral blade structure driven by a drive motor. Automatic cleaning is achieved by controlling the discharge pipe through an electric butterfly valve. The drive motor drives the drive rod and spiral blade to rotate, pushing the concrete mixture downwards for discharge.
This technology enables rapid cleaning of concrete mixtures after bulk density testing, reducing the labor intensity of manual operations and improving testing efficiency.
Smart Images

Figure CN223485752U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of concrete mixtures, and in particular to a device for detecting the bulk density of concrete mixtures. Background Technology
[0002] Concrete mixture refers to a material that has not yet hardened, obtained by mixing cement, sand and gravel aggregates, water, and admixtures and additives as needed in a certain proportion.
[0003] Bulk density testing is one of the important basic performance indicators of concrete mixtures. The value of bulk density directly affects the mechanical properties, durability, short-term and long-term performance of concrete, playing a decisive role. According to Chinese Patent No. CN216847334U, a bulk density testing device for concrete mixtures is disclosed, including a measuring cylinder, a support platform, a vibrator, a main body, a battery, a display screen, a keyboard, and foot pads. The support platform is installed between the measuring cylinder and the main body. However, in the above patent, after the bulk density is measured on the top of the main body, it is difficult to turn over and clean the concrete mixture inside the measuring cylinder, making it difficult to quickly clean and discharge the concrete mixture inside the measuring cylinder. Therefore, we propose a bulk density testing device for concrete mixtures to solve the above problems. Utility Model Content
[0004] The purpose of this invention is to provide a device for testing the bulk density of concrete mixtures, so as to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, the present invention provides the following technical solutions:
[0006] A concrete mixture bulk density testing device includes two base plates. Support seats are fixedly connected to the upper surfaces of both base plates. Detection grooves are formed on the upper surfaces of both support seats. Weighing sensors are fixedly installed on the inner bottom walls of both detection grooves. Detection support plates are provided inside each detection groove. The detection ends of the two weighing sensors are in contact with the bottom surfaces of the two detection support plates. A bulk density hopper is fixedly connected to the upper surfaces of both detection support plates. A fixed support plate is fixedly connected to the upper surface of the bulk density hopper. A drive motor is located above the fixed support plate. A bearing ring is fixedly embedded in the upper surface of the fixed support plate. A drive rod is fixedly connected to the inner ring of the bearing ring. A spiral blade is fixedly connected to the outer surface of the drive rod.
[0007] In a further embodiment, a drive cover is fixedly installed on the upper surface of the fixed support plate, the top end of the drive motor is fixedly installed to the inner top wall of the drive cover, and the output end of the drive motor is fixedly installed to the top end of the drive rod.
[0008] In a further embodiment, a reinforcing plate is fixedly connected to the bottom surface of the fixed support plate, and the right side of the reinforcing plate is fixedly connected to the inner wall of the bulk density hopper.
[0009] In a further embodiment, a support plate is fixedly installed on the right side of both support bases, a controller is fixedly installed on the right side of the support plate, and a display screen is fixedly embedded on the right side of the controller.
[0010] In a further embodiment, the bottom end of the bulk density hopper is fixedly connected to a discharge pipe, and the outer surface of the discharge pipe is fixedly connected to an electric butterfly valve.
[0011] In a further embodiment, two fixing plates are fixedly connected to the upper surfaces of the two base plates, and the sides of the two fixing plates that are close to each other are fixedly connected to the outer surfaces of the two support seats respectively.
[0012] Compared with the prior art, the beneficial effects of this utility model are:
[0013] This invention utilizes a bulk density hopper to hold concrete mixtures, facilitating bulk density testing. A weighing sensor and detection plate inside the support base allow for the detection of the weight of the concrete mixture inside the hopper, enabling subsequent processing. Opening the electric butterfly valve on the surface of the feeding pipe, along with the rotation of the drive rod and spiral blades driven by the drive motor, pushes the concrete mixture downwards and cleans it, solving the problem of laborious cleaning and overturning of concrete mixtures inside current capacity cylinders. Attached Figure Description
[0014] Figure 1 This is a three-dimensional structural schematic diagram of a concrete mixture bulk density testing device (front view).
[0015] Figure 2 This is a cross-sectional view of the front view of the concrete mixture bulk density testing device.
[0016] Figure 3 This is a sectional view of the side view of the concrete mixture bulk density testing device.
[0017] Figure 4 This is a sectional view of the top view of the concrete mixture bulk density testing device.
[0018] In the diagram: 1. Base plate; 2. Support base; 3. Support plate; 4. Controller; 5. Detection support plate; 6. Detection groove; 7. Weighing sensor; 8. Fixed support plate; 9. Drive cover; 10. Drive motor; 11. Drive rod; 12. Spiral blade; 13. Feed pipe; 14. Electric butterfly valve; 15. Reinforcing plate; 16. Bulk density hopper; 17. Fixed plate; 18. Display screen; 19. Bearing ring. Detailed Implementation
[0019] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.
[0020] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.
[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. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0022] Please see Figure 1-4In this utility model, a concrete mixture bulk density testing device includes two base plates 1. Support seats 2 are fixedly connected to the upper surfaces of both base plates 1. Detection grooves 6 are formed on the upper surfaces of both support seats 2. Weighing sensors 7 are fixedly installed on the inner bottom walls of both detection grooves 6. The weighing sensor 7 is essentially a device that converts a mass signal into a measurable electrical signal output, and is a commonly used weighing device. Detection support plates 5 are provided inside both detection grooves 6. The detection ends of the two weighing sensors 7 are in contact with the bottom surfaces of the two detection support plates 5, respectively. A bulk density hopper 16 is fixedly connected to the upper surface of plate 5. A fixed support plate 8 is fixedly connected to the upper surface of the bulk density hopper 16. A drive motor 10 is provided above the fixed support plate 8. A bearing ring 19 is fixedly embedded in the upper surface of the fixed support plate 8. A drive rod 11 is fixedly connected to the inner ring of the bearing ring 19. A spiral blade 12 is fixedly connected to the outer surface of the drive rod 11. The drive motor 10 drives the drive rod 11 and the spiral blade 12 to rotate, thereby achieving the effect of pushing and cleaning the concrete mixture inside the bulk density hopper 16 downwards, which can prevent the concrete mixture from remaining inside the bulk density hopper 16.
[0023] In a further embodiment, a drive cover 9 is fixedly installed on the upper surface of the fixed support plate 8, the top end of the drive motor 10 is fixedly installed on the inner top wall of the drive cover 9, the output end of the drive motor 10 is fixedly installed on the top end of the drive rod 11, and a reinforcing plate 15 is fixedly connected to the bottom surface of the fixed support plate 8. The right side of the reinforcing plate 15 is fixedly connected to the inner wall of the bulk density hopper 16. The drive cover 9 serves to support and protect the drive motor 10. The drive motor 10 can provide power for the operation of the drive rod 11, and the reinforcing plate 15 will strengthen the support for the bottom of the fixed support plate 8.
[0024] In a further embodiment, a support plate 3 is fixedly installed on the right side of both support bases 2. A controller 4 is fixedly installed on the right side of the support plate 3. A display screen 18 is fixedly embedded on the right side of the controller 4. A discharge pipe 13 is fixedly connected to the bottom end of the bulk density hopper 16. An electric butterfly valve 14 is fixedly connected to the outer surface of the discharge pipe 13. Two fixing plates 17 are fixedly connected to the upper surface of both base plates 1. The sides of the two fixing plates 17 that are close to each other are fixedly connected to the outer surfaces of the two support bases 2 respectively. The support plate 3 can support and install the controller 4. The controller 4 can control the operation of the drive motor 10 and the electric butterfly valve 14. The discharge pipe 13 and the opening of the electric butterfly valve 14 can push the concrete mixture inside the bulk density hopper 16 downward and discharge it.
[0025] The working principle of this utility model is as follows: First, the concrete mixture is injected into the bulk density hopper 16. Then, the device is connected to a power source. The injection of the concrete mixture into the bulk density hopper 16 increases the gravity of the hopper 16, which causes the bulk density hopper 16 to drive the detection support plate 5 to apply pressure to the weighing sensor 7 inside the detection groove 6. The weighing sensor 7 can convert the gravity value into an electrical signal for transmission. Then, the bulk density value of the concrete mixture can be viewed through the display screen 18. When the concrete mixture inside the bulk density hopper 16 is discharged, the electric butterfly valve 14 is opened, and the drive motor 10 is started to drive the drive rod 11 and the spiral blade 12 to rotate, which will push the concrete mixture inside the bulk density hopper 16 downward. Finally, the concrete is discharged through the discharge pipe 13.
[0026] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.
[0027] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.
Claims
1. A device for detecting the bulk density of concrete mixtures, characterized in that: The device includes two base plates (1), each base plate (1) has a support base (2) fixedly connected to its upper surface, each support base (2) has a detection groove (6) on its upper surface, each detection groove (6) has a weighing sensor (7) fixedly installed on its inner bottom wall, each detection groove (6) has a detection support plate (5) inside its interior, the detection ends of the two weighing sensors (7) are in contact with the bottom surfaces of the two detection support plates (5), the upper surfaces of the two detection support plates (5) are fixedly connected to a bulk density hopper (16), the upper surface of the bulk density hopper (16) is fixedly connected to a fixed support plate (8), a drive motor (10) is provided above the fixed support plate (8), a bearing ring (19) is fixedly embedded on the upper surface of the fixed support plate (8), a drive rod (11) is fixedly connected to the inner ring of the bearing ring (19), and a spiral blade plate (12) is fixedly connected to the outer surface of the drive rod (11).
2. The concrete mixture bulk density testing device according to claim 1, characterized in that: A drive cover (9) is fixedly installed on the upper surface of the fixed support plate (8), the top end of the drive motor (10) is fixedly installed on the inner top wall of the drive cover (9), and the output end of the drive motor (10) is fixedly installed on the top end of the drive rod (11).
3. The concrete mixture bulk density testing device according to claim 1, characterized in that: The bottom surface of the fixed support plate (8) is fixedly connected to a reinforcing plate (15), and the right side of the reinforcing plate (15) is fixedly connected to the inner wall of the bulk density hopper (16).
4. The concrete mixture bulk density testing device according to claim 1, characterized in that: A support plate (3) is fixedly installed on the right side of both support bases (2), a controller (4) is fixedly installed on the right side of the support plate (3), and a display screen (18) is fixedly embedded on the right side of the controller (4).
5. The concrete mixture bulk density testing device according to claim 1, characterized in that: The bottom end of the bulk density hopper (16) is fixedly connected to the discharge pipe (13), and the outer surface of the discharge pipe (13) is fixedly connected to the electric butterfly valve (14).
6. The concrete mixture bulk density testing device according to claim 1, characterized in that: Two fixing plates (17) are fixedly connected to the upper surface of each of the two base plates (1), and the two fixing plates (17) are fixedly connected to the outer surface of the two support bases (2) respectively on their side that is close to each other.
Citation Information
Patent Citations
Device for detecting volume weight of concrete mixture
CN216847334U