A thin shell prefabricated concrete septic tank

By using an elliptical thin-shell structure and a Y-shaped connection, the problem of cracking at corners in traditional precast concrete septic tanks is solved, resulting in lightweight and high-strength precast concrete septic tanks that improve product lifespan and ease of installation.

CN111718093BActive Publication Date: 2025-01-07HUNAN HENGYUN CONSTR TECH DEV CO LTD +1
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Patent Information

Application Number
CN202010681333.0
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2020-07-15
Publication Date
2025-01-07
Estimated Expiration
2040-07-15

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Abstract

The present invention discloses a thin-shell prefabricated concrete septic tank, the horizontal cross section of which is elliptical, including two semi-elliptical pools A and B symmetrically on the minor axis of the ellipse, the pools A and B are composed of a prefabricated bottom plate, a pool body, and a prefabricated cover plate, the upper end surface of the prefabricated bottom plate is provided with a pressure groove, the bottom of the pool body is placed in the pressure groove, the pool body is composed of two or more pipe sections stacked up and down, the upper part of the lower pipe section is provided with a Y-shaped connecting part that gradually widens from bottom to top, a slot is provided in the middle of the upper end surface of the Y-shaped connecting part, the lower part of the upper pipe section is placed in the slot, and the prefabricated cover plate is placed on the uppermost pipe section for sealing the pool body. The present invention adopts an elliptical thin shell structure, which can evenly disperse the pressure to various parts of the pool body, reduce the pressure on the pool body wall, and improve the service life and quality of the product; the prefabricated bottom plate, the pool body, the prefabricated cover plate, and the partition are all prefabricated separately, which is convenient for manual handling and installation.
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Citation Information

Patent Citations

  • Soft connection combination type septic tank

    CN201080462Y

  • Detachable movable door-shaped hanging bracket

    CN210795540U

  • Thin-shell prefabricated concrete septic tank

    CN212425822U

  • A concrete sewage disposal tank

    KR200420492Y1