Automatic adding device for passivation liquid
By incorporating a filter screen and threaded rod structure into the automatic passivation liquid addition device, the problem of impurities entering the metering pump is solved, extending the service life of the metering pump and maintaining the filtration effect.
CN224411906UActive Publication Date: 2026-06-26DONGGUAN DUNHUA TECHNOLOGY CO LTD
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- DONGGUAN DUNHUA TECHNOLOGY CO LTD
- Filing Date
- 2025-08-12
- Publication Date
- 2026-06-26
AI Technical Summary
Technical Problem
Traditional passivation liquid automatic addition devices lack a filtration structure, which allows impurities to enter the metering pump and affect its service life.
Method used
A filter screen is installed in the device to filter the passivation liquid entering the metering pump, preventing impurities from entering the metering pump. A threaded rod and nut structure is designed to facilitate the cleaning and replacement of the filter screen.
Benefits of technology
It effectively prevents impurities from entering the metering pump, extends the service life of the metering pump, ensures filtration effect and flowability, and avoids the impact of impurities on the normal operation of the device.
✦ Generated by Eureka AI based on patent content.
Smart Images
Figure CN224411906U_ABST
Abstract
The utility model discloses a kind of automatic adding devices of passivation solution, it includes bottom plate, the upper surface of the bottom plate is fixedly connected with multiple support rods, the upper surface of the support rod is fixedly connected with bearing block, the inner surface of the bearing block is fixedly connected with liquid storage tank, the outer surface of the liquid storage tank is fixedly connected with multiple limit blocks, the upper surface of the limit block is fixedly connected with threaded rod, the outer surface of the threaded rod is movably connected with butt block, the side surface of the butt block is fixedly connected with connecting ring, the lower surface of the connecting ring is fixedly connected with filter screen, the outer surface of the threaded rod is movably connected with connecting block. Through the setting of filter screen, the passivation solution into metering pump can be filtered, so that impurities can be prevented from entering the metering pump with passivation solution, the components in the metering pump can be prevented from being damaged by impurities, and the service life of the metering pump can be prevented from being reduced by impurities.
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