A device for detecting the bulk density of a building sand

By designing a building sand bulk density testing device with rotating impact components and supporting connection components, the problem of inaccurate density testing caused by inter-particle errors was solved, and the accuracy and stability of sand density testing were achieved.

CN224383046UActive Publication Date: 2026-06-19CHONGQING QINGDAYUAN TESTING TECHNOLOGY CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CHONGQING QINGDAYUAN TESTING TECHNOLOGY CO LTD
Filing Date
2025-06-10
Publication Date
2026-06-19

AI Technical Summary

⚠Technical Problem

Existing technologies for detecting the bulk density of building sand suffer from significant weight and volume errors within the container due to the irregular packing morphology and differences in particle size distribution between particles, thus affecting the accuracy of density detection.

⚗Method used

A bulk density testing device for building sand was designed, comprising a rotating impact component, a support component, and a connecting component. The rotating impact component causes the measuring cylinder to rotate and strike, thereby breaking the bridging structure between sand particles. The support component and the connecting component maintain the stability of the device and ensure the compactness of the sand.

🎯Benefits of technology

It achieves accuracy and stability in sand density detection by disrupting the bridging structure between particles, thus making the sand dense and improving the accuracy and repeatability of the test.

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Abstract

The utility model provides a kind of construction sand material bulk density detection device, including base, the top of base is provided with weigher, the top of weigher is placed with measuring cylinder, support assembly for keeping the stable work of weigher is arranged between weigher and base, the top of weigher is provided with the connecting assembly for keeping the stable of measuring cylinder;The top of base is provided with the rotation and beating assembly for allowing measuring cylinder to rotate and can be knocked to measuring cylinder to make sand material keep compact, the support assembly includes annular frame fixedly connected to the upper surface of base, the inner wall of annular frame is slidably connected with annularly arranged support block. Through the rotation and beating assembly set, measuring cylinder can be rotated, and the rotating measuring cylinder can be knocked, which can effectively destroy the bridge structure between sand material particles, so that the sand material inside measuring cylinder can reach the compact state, thereby ensuring the accuracy of sand material density value detection.
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