A molding device for precast concrete inspection wells

By designing the hole-forming mechanism and the outer mold synchronously, the problem of the hole-forming mold not being reusable is solved, enabling automatic removal and hole diameter adjustment, thus reducing production costs.

CN115816614BActive Publication Date: 2026-06-12ANHUI ANENG CONSTR GRP CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
ANHUI ANENG CONSTR GRP CO LTD
Filing Date
2022-11-24
Publication Date
2026-06-12

AI Technical Summary

⚠Technical Problem

In existing precast concrete manhole forming equipment, the hole-forming molds cannot be reused, which increases production costs.

⚗Method used

The combined design of the hole-forming mechanism, drive mechanism, hole diameter adjustment mechanism and transmission mechanism enables the synchronous movement of the hole-forming mold cavity and the outer mold, which can be automatically removed from the inspection well. The hole diameter can also be adjusted to avoid mold damage and wear.

🎯Benefits of technology

It enables automatic removal of the forming mold cavity and adjustment of the hole diameter, reduces energy loss, extends the service life of the mold, and lowers production costs.

✦ Generated by Eureka AI based on patent content.

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Abstract

This invention discloses a molding device for precast concrete manholes, relating to the field of manhole production technology. The device includes a main body, a driving mechanism located within a hole-forming mechanism, a hole diameter adjustment mechanism located to one side of the driving mechanism, and a transmission mechanism located above the main body. The main body includes an inner mold, an outer mold surrounding the inner mold, and a moving wheel positioned below the outer mold and below a connecting frame. The outer mold consists of two parts. During manhole casting, this molding device eliminates the need for an additional connecting hole mold. After casting, when the outer mold is opened, the hole-forming mechanism moves with it, shrinking in size and automatically removing itself from the manhole. This eliminates the need for subsequent manual removal of the connecting hole mold. Furthermore, the diameter of the hole-forming mechanism can be manually adjusted as needed, facilitating the production of manholes with connecting holes of different diameters.
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