Concrete gas content testing device

By using a motor-driven transmission system and a transmission belt to drive the transmission wheel, combined with a wedge and bolt fixing mechanism, the problem of density difference caused by the instability of manual tamping operation is solved, and the accuracy and stability of concrete air content testing are achieved.

CN224399404UActive Publication Date: 2026-06-23SICHUAN CHUANQIAO ENG TESTING CO LTD
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Patent Information

Application Number
CN202521560382.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-07-24
Publication Date
2026-06-23
Estimated Expiration
2035-07-24

AI Technical Summary

Technical Problem

In existing concrete air content testing devices, manual operation of the tamping rod to release air leads to inconsistent compaction, affecting the uniformity of air bubble distribution, resulting in large measurement errors and making it difficult to meet the precise control of different batches of samples.

Method used

The system employs a motor-driven transmission system and a transmission belt to drive the transmission wheel. The reciprocating motion of the tamping rod is achieved through a crank and a rocker arm. At the same time, the meshing of the driving bevel gear and the driven bevel gear drives the rotation of the measuring bowl. Combined with the wedge block and bolt fixing mechanism, the system ensures the tamping depth, force, and uniformity, and prevents the measuring bowl from shifting.

Benefits of technology

It enables omnidirectional tamping of concrete, ensuring consistent tamping depth and uniformity, reducing measurement errors, and improving the accuracy and stability of testing.

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Abstract

The utility model relates to the technical field of concrete gas content testing, and discloses a concrete gas content testing device which comprises a supporting bottom shell, a tamping hammer mechanism is arranged on the left side of the top of the supporting bottom shell, a fixing mechanism is arranged on the right side of the top of the supporting bottom shell, and the fixing mechanism is used for fixing a detection device; and the pounding mechanism comprises a mounting shell and a transmission belt, the bottom of the mounting shell is fixedly connected to the left side of the top of the supporting bottom shell, transmission wheels are rotationally connected to the left sides of the inner walls of the supporting bottom shell and the mounting shell, the two transmission wheels are in transmission connection through the transmission belt, and a motor is fixedly connected to the left side of the supporting bottom shell. According to the utility model, the transmission wheels on the two sides are synchronously rotated through the transmission belt, and concrete in the metering bowl is pounded and beaten in all directions through the rotation of the metering bowl and the reciprocating motion of the pounding rod, so that the depth, the force and the uniformity of pounding and beating can be ensured.
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