Soil moisture tensiometer

By designing water replenishment and venting components and fixing components, the problem of sealing during the use of soil moisture tensiometers was solved, achieving automatic water replenishment and stability, and improving monitoring accuracy and performance.

CN223597495UActive Publication Date: 2025-11-25NANJING RUNNONG PRECISION IRRIGATION TECHNOLOGY CO LTD
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Patent Information

Application Number
CN202423096405.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-16
Publication Date
2025-11-25
Estimated Expiration
2034-12-16

AI Technical Summary

Technical Problem

Existing soil moisture tensiometers require regular water replenishment during use, and frequent opening of the sealing cap can affect the sealing performance, leading to a decrease in monitoring accuracy.

Method used

A water replenishment and gas exhaust assembly was designed. By manually pressing the circular plate, the piston and the fixing rod are driven to achieve automatic water replenishment and gas exhaust, reducing the need to disassemble the sealing cap. Combined with the fixing assembly, the stability of the glass tube and ceramic head is ensured.

Benefits of technology

It enables automatic water replenishment and gas discharge without the need for frequent disassembly of the sealing cap, maintaining monitoring accuracy and product stability, and improving performance and protection.

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Abstract

The utility model discloses a soil moisture tensiometer, which belongs to the technical field of soil moisture tensiometers, and comprises a glass tube, a fixing component is arranged on the peripheral side of the bottom of the glass tube, a plug is arranged at the top end of a pressure monitoring device, a mounting sleeve is arranged below the plug, and the mounting sleeve is fixedly connected to the outer side of the top of the glass tube. A water supplementing and exhausting assembly is arranged on one side of the mounting sleeve. According to the water purifier, a worker manually presses a circular plate to drive a fixing rod and a piston to move, purified water stored in a fixing barrel is conveyed into a connecting block, and when the pressure of the connecting block is larger than the elastic force of a spring, water flow of the connecting block can drive a ball head block, a side block and a tooth block to move; at the moment, the liquid is conveyed into the glass tube through the stepped through hole and the one-way water inlet so as to perform water replenishing treatment on the interior of the glass tube, so that the mounting and dismounting work of the plug is reduced, the influence on the sealing performance of the plug after a long time is prevented, and the influence on the monitoring precision of a product is further prevented.
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