一种基于毛细管膨胀原理的水温异常报警装置
The water temperature anomaly alarm device, which utilizes the capillary expansion principle, uses a mechanical structure to monitor and alarm water temperature in environments without electricity. This solves the reliability and cost issues of traditional electronic devices in power-free and high-risk industrial scenarios, providing fast and reliable audible and visual alarms.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SEISMOLOGICAL BUREAU OF GANSU PROVINCE CHINA EARTHQUAKE ADMINISTRATION
- Filing Date
- 2025-09-23
- Publication Date
- 2026-07-17
AI Technical Summary
Traditional electronic water temperature alarm devices have poor reliability, high cost, and insufficient environmental adaptability in environments without electricity and in high-risk industrial scenarios.
The water temperature anomaly alarm device, based on the capillary expansion principle, utilizes a spiral metal capillary and a heat-sensitive liquid to achieve water temperature monitoring and alarm through a mechanical structure, including mechanical audible and visual alarms and warning flags, requiring no external power supply.
It can operate reliably in environments without electricity, respond quickly to abnormal water temperature, provide dual audible and visual alarms, and is suitable for various environments, especially noisy industrial scenes and people with hearing impairments, thus reducing costs.
Smart Images

Figure CN224517958U_ABST
Abstract
Claims
1. A water temperature abnormality alarm device based on the principle of capillary expansion, characterized by, The device includes a monitoring component (1), an alarm component (2), and a connecting bracket (3). The monitoring component (1) is used to be submerged in water and monitor the water temperature. An alarm component (2) is fixedly installed on the upper end of the monitoring component (1). An alarm is triggered by the alarm component (2) when the water temperature is abnormal. A connecting bracket (3) is installed in the middle of the alarm component (2). The depth of the monitoring component (1) submerged in water can be adjusted by the alarm component (2). The monitoring component (1) includes a housing frame (11), a capillary tube (12), a connecting end (13), and a snap-fit unit (14). The housing frame (11) has a cylindrical hollow structure. A capillary tube (12) is provided on the outer side of the housing frame (11). The capillary tube (12) has a spiral structure. The lower end of the capillary tube (12) is connected to the inside of the housing frame (11) through the connecting end (13). A snap-fit unit (14) is installed at the upper end of the inside of the housing frame (11). The lower end of the snap-fit unit (14) forms a sealed cavity with the inside of the housing frame (11). The upper end of the snap-fit unit (14) is connected to the alarm component (2). The alarm component (2) includes a connecting sleeve (21), a core rod (22), a plug-in end (23), a metal plate (24), an impact frame (25), and an opening end (26). The monitoring component (1) is fixedly installed with a connecting sleeve (21) at its upper end. A core rod (22) is slidably arranged inside the connecting sleeve (21). A plug-in end (23) is fixedly installed at the lower end of the core rod (22). A return spring is installed between the core rod (22) and the connecting sleeve (21). Metal plates (24) are arranged at equal intervals on the inner wall of the connecting sleeve (21). Impact frames (25) are evenly installed on the core rod (22). An opening end (26) is installed at the upper end of the core rod (22).
2. The water temperature abnormality alarm device based on the capillary expansion principle according to claim 1, characterized in that: The outer layer of the capillary (12) is made of metal, the inner layer of the capillary (12) is made of polymer material, the inside of the capillary (12) is connected to the lower end of the sealing cavity, and the inside of the capillary (12) and the inside of the sealing cavity are filled with heat-sensitive liquid.
3. The water temperature abnormality alarm device based on the capillary expansion principle according to claim 1, characterized in that: The snap-fit unit (14) includes a fixed frame (141), a movable frame (142), a slot (143), a latch (144), and a pressing block (145). The fixed frame (141) is fixedly installed at the upper end of the housing frame (11). The movable frame (142) is provided below the fixed frame (141). The movable frame (142) is slidably disposed inside the housing frame (11) by a piston. The slot (143) is provided in the middle of the fixed frame (141). The latches (144) are evenly arranged on the inner side of the slot (143). The pressing blocks (145) that cooperate with the latches (144) are evenly installed at the upper end of the movable frame (142).
4. The water temperature abnormality alarm device based on the capillary expansion principle according to claim 1, characterized in that: The opening end (26) is evenly provided with grooves, and a flipping frame (261) is installed at the lower end of the groove through a pin. A warning flag (262) is installed between the flipping frame (261) and the groove.
5. A water temperature anomaly alarm device based on the capillary expansion principle according to claim 1, characterized in that: The connecting bracket (3) includes a connecting sleeve (31), a support rod (32), and a snap-fit connector (33). The connecting sleeve (21) has an external thread in the middle of its outer side. The connecting sleeve (31) is fitted on the outer side of the connecting sleeve (21). The connecting sleeve (31) is threaded to the external thread. The support rod (32) is installed in the middle of the connecting sleeve (31). The support rod (32) is arranged at an angle. The snap-fit connector (33) is installed on the support rod (32). The snap-fit connector (33) has a U-shaped cross-section and a locking screw is installed on the snap-fit connector (33).