Constructional engineering board density detection device
The building slab density detection device, which combines a hydraulic lift and weighing plate with a liquid level sensor, solves the problems of inconvenient operation and safety hazards in the existing technology, and achieves efficient and safe density measurement.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 郯城县城乡建设工程监理咨询有限公司
- Filing Date
- 2025-04-21
- Publication Date
- 2026-05-01
AI Technical Summary
Existing density testing devices for building slabs are inconvenient to operate, laborious, and pose safety hazards, making it difficult to perform density measurements efficiently.
It adopts a hydraulic lifting platform and a U-shaped placement plate structure, combined with a weighing plate and a liquid level measurement sensor. The density of the engineering plate is calculated by injecting water into the sleeve, thus avoiding lifting the plate to a high place.
It improves the safety and ease of operation of the detection, has high accuracy, and can efficiently calculate density.
Smart Images

Figure CN224189811U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of engineering board testing technology, and in particular to a density testing device for building engineering boards. Background Technology
[0002] Engineering slabs, also known as contract slabs, are custom-made according to design drawings, specifically for the size and shape of the surfaces to be decorated in a building project. Suitable for specific building areas and shapes, they come in various lengths, widths, and edge / corner shapes of granite and marble slabs. Because the surfaces to be decorated in building projects vary in size and shape, and are not always multiples of standard slab dimensions, engineering slabs exhibit diverse shapes. After production, the density of engineering slabs needs to be tested. Currently, the most common method is the drainage method. This involves first measuring the weight of the slab, then taking a certain amount of water and placing the slab in the water. The density is calculated by measuring the height the water level rises. However, in practical use, due to the weight and size of the engineering slabs, placing them in water is cumbersome, requiring them to be lifted, which is not only laborious but also poses significant safety hazards, making it inconvenient for operation and use. Summary of the Invention
[0003] To overcome the technical defects of the existing technology, this utility model provides a building engineering slab density detection device, which has high safety, is easy to measure the volume of the engineering slab, is convenient to operate, and has high accuracy.
[0004] The technical solution adopted by this utility model is: a density testing device for building slabs, including a base plate and a placement plate. A hydraulic lift is fixedly installed on one side of the base plate, and a square sleeve is fixedly installed on the movable end of the lift. The placement plate has a U-shaped structure, and a weighing plate is fixedly installed in the middle of the placement plate. The placement plate is located below the sleeve, and the sleeve fits into the placement plate. A liquid level measuring sensor is fixedly installed in the middle of the upper end of the sleeve. In use, the sleeve is first raised to a high position by the lift, and the slab to be tested is placed on the weighing plate. The density of the slab is measured by the weighing plate. The weight of the engineering board is measured, and then the engineering board is moved to directly below the sleeve via the placement plate. The sleeve is lowered by the elevator, and the sleeve presses against the upper end of the placement plate. Then, a certain amount of water is injected into the inside of the sleeve. After the water is injected, the liquid level is detected by the liquid level measurement sensor. The total volume of the water and the engineering board inside the sleeve is calculated, and then the volume of the injected water is subtracted to obtain the volume of the engineering board. The density of the engineering board is inferred from the calculated volume and weight, which facilitates testing. Moreover, the engineering board does not need to be lifted to a high place during testing, improving safety during operation.
[0005] Preferably, a water storage tank is fixedly installed on one side of the upper surface of the base plate, and a water pump is fixedly installed on the upper surface of the base plate on the side of the water storage tank. The two ends of the water pump are respectively connected to the water storage tank and the sleeve. The water pump is a dual-purpose pump, which facilitates pumping water from the inside of the water storage tank into the inside of the sleeve or pumping water from the inside of the sleeve back into the inside of the water storage tank. During testing, water from the inside of the water storage tank is pumped into the inside of the sleeve, and when not testing, water is pumped into the inside of the water storage tank for storage.
[0006] Preferably, an observation window with scale lines is embedded on one side of the water storage tank, and a bucket lid with a vent hole is threaded to the upper end of the water storage tank. Through the observation window, it is easy to observe the water volume inside the water storage tank and to calculate the amount of water discharged from the water storage tank. The bucket lid facilitates the replenishment of water inside the water storage tank.
[0007] Preferably, a flow meter is fixedly installed at one end of the water pump, and a telescopic hose is fixedly installed at the other end of the flow meter. The other end of the telescopic hose is connected to the sleeve. The flow meter facilitates the detection of the amount of water supplied into the sleeve and the calculation of the volume of the engineering plate.
[0008] Preferably, a horizontal plate is fixedly installed at the upper end of the sleeve, and the liquid level measuring sensor is fixedly installed at the middle position of the horizontal plate. The horizontal plate facilitates the installation of the liquid level measuring sensor and makes it convenient to detect the liquid level inside the sleeve.
[0009] Preferably, an L-shaped sealing ring is fixedly installed on the outer side of the upper end of the placement plate, and the lower end of the sleeve is pressed against the sealing ring. The sealing ring facilitates the lowering of the sleeve and improves the sealing of the connection position, making it convenient to hold and measure water.
[0010] Preferably, a handle is fixedly installed on one side of the placement plate to facilitate pushing the placement plate.
[0011] Preferably, casters are fixedly installed at the four lower corners of the placement plate to facilitate movement of the placement plate and achieve the effect of moving the engineering plate.
[0012] The beneficial effects of this utility model are as follows: By placing the engineering board to be tested on the weighing plate and moving it to the lower end of the sleeve, the weight of the engineering board is detected by the weighing plate. Then, a certain amount of water is injected into the inside of the sleeve, and the height of the liquid level is detected by the liquid level measurement sensor. The total volume of water and engineering board is calculated, and the volume of the injected water is subtracted to calculate the volume of the engineering board. The density is calculated by combining the volume and weight. In use, the engineering board only needs to be placed on the weighing plate above the placement plate, without having to lift the engineering board to a high place, which is convenient for operation, improves safety during use, and is easy to use. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of the structure of this utility model during testing.
[0014] Figure 2 This is a schematic diagram of the structure of this utility model before testing.
[0015] Figure 3 This is a schematic diagram of the structure of this utility model after the placement plate is removed.
[0016] Figure 4 This is a structural diagram of the base plate position in this utility model.
[0017] Figure 5 This is a structural diagram showing the placement of the plate in this utility model.
[0018] Explanation of reference numerals in the attached diagram: 1. Base plate; 2. Placement plate; 3. Elevator; 4. Sleeve; 5. Weighing plate; 6. Liquid level sensor; 7. Water storage tank; 8. Water pump; 9. Observation window; 10. Tank lid; 11. Flow meter; 12. Telescopic hose; 13. Horizontal plate; 14. Sealing ring; 15. Handle; 16. Casters. Detailed Implementation
[0019] The present invention will be further described below with reference to the accompanying drawings:
[0020] like Figures 1-5As shown, this embodiment provides a density testing device for building slabs, including a base plate 1 and a placement plate 2. A hydraulic lift 3 is fixedly installed on one side of the base plate 1, and a square sleeve 4 is fixedly installed on the movable end of the lift 3. The placement plate 2 has a U-shaped structure, and a weighing plate 5 is fixedly installed in the middle of the placement plate 2. The placement plate 2 is located below the sleeve 4, and the sleeve 4 fits into the placement plate 2. A liquid level measuring sensor 6 is fixedly installed in the middle of the upper end of the sleeve 4. In use, the sleeve 4 is first raised to a high position by the lift 3, and the building slab to be tested is placed on the weighing plate 5. The weight of the building slab is measured by the weighing plate 5. Measurements are taken, and then the engineering plate is moved to directly below the sleeve 4 via the placement plate 2. The sleeve 4 is lowered by the lifting machine 3, and the sleeve 4 presses against the upper end of the placement plate 2. Then, a certain amount of water is injected into the inside of the sleeve 4. After the water is injected, the liquid level is detected by the liquid level sensor 6. The total volume of water and engineering plate inside the sleeve 4 is calculated, and then the volume of injected water is subtracted to obtain the volume of the engineering plate. The density of the engineering plate is inferred from the calculated volume and weight, which facilitates testing. Moreover, the engineering plate does not need to be lifted to a high place during testing, which improves the safety of operation and makes the operation more convenient.
[0021] As a technical optimization solution of this utility model, specifically as follows: Figure 2 As shown, a water storage tank 7 is fixedly installed on one side of the upper surface of the base plate 1, and a water pump 8 is fixedly installed on the upper surface of the base plate 1 on one side of the water storage tank 7. The two ends of the water pump 8 are connected to the water storage tank 7 and the sleeve 4, respectively. The water pump 8 is a dual-purpose pump, which facilitates pumping water from inside the water storage tank 7 into the sleeve 4, or returning water from the sleeve 4 to the water storage tank 7 for reuse. During testing, water from inside the water storage tank 7 is pumped into the sleeve 4; when not testing, water is pumped into the water storage tank 7 for storage. A belt is embedded on one side of the water storage tank 7. The water storage tank 7 has a graduated observation window 9, and the upper end of the water storage tank 7 is threadedly connected to a tank cover 10 with a vent hole. Through the observation window 9, it is easy to observe the water volume inside the water storage tank 7 and to calculate the amount of water discharged from the water storage tank 7. Through the tank cover 10, it is easy to replenish water inside the water storage tank 7. One end of the water pump 8 is fixedly installed with a flow meter 11, and the other end of the flow meter 11 is fixedly installed with a telescopic hose 12. The other end of the telescopic hose 12 is connected to the sleeve 4. Through the flow meter 11, it is easy to detect the amount of water supplied to the inside of the sleeve 4 and to calculate the volume of the engineering plate.
[0022] As a technical optimization solution of this utility model, specifically as follows: Figure 2As shown, a horizontal plate 13 is fixedly installed on the upper end of the sleeve 4, and the liquid level measuring sensor 6 is fixedly installed in the middle position of the horizontal plate 13. The liquid level measuring sensor 6 adopts either an ultrasonic sensor or a lidar sensor. The horizontal plate 13 facilitates the installation of the liquid level measuring sensor 6 and makes it convenient to detect the liquid level inside the sleeve 4.
[0023] As a technical optimization solution of this utility model, specifically as follows: Figure 5 As shown, an L-shaped sealing ring 14 is fixedly installed on the upper outer side of the placement plate 2. The lower end of the sleeve 4 is pressed against the sealing ring 14. The sealing ring 14 facilitates the formation of a pool shape between the placement plate 2 and the sleeve 4 when the sleeve 4 descends, and improves the sealing of the connection position, making it convenient to hold and measure water. A handle 15 is fixedly installed on one side of the placement plate 2, which facilitates pushing the placement plate 2 and moving the engineering plate. Universal wheels 16 are fixedly installed at the four corners of the lower end of the placement plate 2, which facilitates moving the placement plate 2 and achieving the effect of moving the engineering plate.
[0024] The foregoing has shown and described the basic principles, main features, and advantages of this invention. Those skilled in the art should understand that this invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this invention. Various changes and modifications may be made to this invention without departing from its spirit and scope. All such changes and modifications fall within the scope of this invention as defined by the appended claims and their equivalents.
Claims
1. A device for detecting the density of slabs in building construction, characterized in that: Includes a base plate (1) and a placement plate (2). A hydraulic lift (3) is fixedly installed on one side of the base plate (1). A square sleeve (4) is fixedly installed on the movable end of the lift (3). The placement plate (2) is a U-shaped structure. A weighing plate (5) is fixedly installed in the middle of the placement plate (2). The placement plate (2) is located below the sleeve (4), and the sleeve (4) matches the placement plate (2). A liquid level measuring sensor (6) is fixedly installed in the middle of the upper end of the sleeve (4).
2. The slab density testing device for building engineering according to claim 1, characterized in that: A water storage tank (7) is fixedly installed on one side of the upper surface of the base plate (1), and a water pump (8) is fixedly installed on the upper surface of the base plate (1) on one side of the water storage tank (7). The two ends of the water pump (8) are respectively connected to the water storage tank (7) and the sleeve (4).
3. The slab density testing device for building engineering according to claim 2, characterized in that: An observation window (9) with scale lines is inlaid on one side of the water storage tank (7), and a bucket lid (10) with a vent hole is threaded to the upper end of the water storage tank (7).
4. The construction board density detection apparatus of claim 2, wherein: A flow meter (11) is fixedly installed at one end of the water pump (8), and a telescopic hose (12) is fixedly installed at the other end of the flow meter (11). The other end of the telescopic hose (12) is connected to the sleeve (4).
5. The slab density testing device for building engineering according to claim 1, characterized in that: A horizontal plate (13) is fixedly installed on the upper end of the sleeve (4), and the liquid level measuring sensor (6) is fixedly installed in the middle position of the horizontal plate (13). The liquid level measuring sensor (6) is either an ultrasonic sensor or a lidar sensor.
6. The construction board density detection apparatus of claim 1, wherein: An L-shaped sealing ring (14) is fixedly installed on the outer side of the upper end of the placement plate (2), and the lower end of the sleeve (4) is pressed against the sealing ring (14).
7. The construction board density detection apparatus of claim 1, wherein: A handle (15) is fixedly installed on one side of the placement plate (2).
8. The construction board density detection apparatus of claim 1, wherein: The four corners of the lower end of the placement plate (2) are all fixedly installed with casters (16).