一种荧光法溶解氧传感器探头自清洁装置
By designing an automatically cleaning fluorescent dissolved oxygen sensor probe device, the problem of measurement abnormalities caused by the probe being covered by sludge was solved, realizing automatic cleaning of the probe and convenient disassembly and assembly of the device, which is convenient for maintenance.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- TIANJIN CAPITAL ENVIRONMENTAL PROTECTION GRP CO LTD
- Filing Date
- 2025-08-19
- Publication Date
- 2026-07-17
AI Technical Summary
Existing dissolved oxygen sensor probes are easily covered by sticky sludge in wastewater treatment, leading to abnormal measurement data. Furthermore, the existing cleaning structure is complex and inconvenient to disassemble and replace.
A self-cleaning device for a fluorescent dissolved oxygen sensor probe was designed, comprising a fixing block, a cleaning brush, a motor, and a circuit board. The motor drives the cleaning brush to automatically clean the fluorescent film on the probe, and all parts of the device are detachable for easy installation and maintenance.
It enables automatic cleaning of the probe, ensuring measurement accuracy, while also improving the ease of disassembly, assembly, and maintenance of the device.
Smart Images
Figure CN224518546U_ABST
Abstract
Claims
1. A fluorescence-based dissolved oxygen sensor probe self-cleaning device, characterized by: The device includes a fixing block (1), on which a dissolved oxygen sensor (9) and a fixing sleeve (3) are detachably mounted side by side in a vertical arrangement. A cleaning brush (4) is provided below the fixing sleeve (3). A motor (7) and a circuit board (6) are provided inside the fixing sleeve (3). The motor (7) and the circuit board (6) are connected. The circuit board (6) has a power supply connection and supplies power to the motor (7) through the circuit board (6). The shaft (8) of the motor (7) extends downward out of the fixing sleeve (3) and is detachably connected and fixed to the cleaning brush (4). The cleaning brush (4) has a brush head (42) corresponding to the fluorescent film of the dissolved oxygen sensor (9).
2. A self-cleaning device for a fluorescent dissolved oxygen sensor probe according to claim 1, characterized in that: The fixing sleeve (3) includes a wire nut (31), a connecting sleeve (32) and a base (33) arranged sequentially from top to bottom. The wire nut (31) and the connecting sleeve (32), as well as the connecting sleeve (32) and the base (33), are threaded together. The power wiring of the circuit board (6) passes through the wire nut (31). The base (33) has an upward-facing inner cavity (335), and a through hole (334) is provided at the bottom of the inner cavity (335). The motor (7) is inserted into the inner cavity (335) and is tightly fixed by two first set screws (5) symmetrically arranged on the inner cavity (335) wall. The rotating shaft (8) of the motor (7) extends out from the through hole (334), and a sealing ring is provided between the rotating shaft (8) and the hole wall of the through hole (334).
3. The self-cleaning device for a fluorescence dissolved oxygen sensor probe according to claim 1, characterized in that: The lower part of the circumferential surface of the rotating shaft (8) is milled with a flat part (81). The cleaning brush (4) is provided with a mounting hole (44) in cooperation with the rotating shaft (8). The shape of the mounting hole (44) corresponds to the shape of the lower part of the rotating shaft (8) and is formed by an arc-shaped hole wall and a flat hole wall. The rotating shaft (8) is inserted into the mounting hole (44). The flat part (81) of the rotating shaft (8) and the flat hole wall of the mounting hole (44) are facing each other. A second set screw is provided on the flat hole wall. The second set screw tightly presses against the flat part (81) to connect and fix the cleaning brush (4) and the rotating shaft (8).
4. The self-cleaning device for a fluorescent dissolved oxygen sensor probe according to claim 1, characterized in that: The fixing sleeve (3) and the fixing block (1) are threaded together.
5. The self-cleaning device for a fluorescent dissolved oxygen sensor probe according to claim 1, characterized in that: The fixing block (1) is a flat square block structure, and the fixing sleeve (3) is set at the center of the fixing block (1); The dissolved oxygen sensor (9) is fastened to one side of the fixing block (1) by a buckle (2).
6. A self-cleaning device for a fluorescent dissolved oxygen sensor probe according to claim 5, characterized in that: The fixing block (1) has a V-groove (101) on the side corresponding to the dissolved oxygen sensor (9). The dissolved oxygen sensor (9) is positioned by the V-groove (101), and the buckle (2) fixes the dissolved oxygen sensor (9) in the V-groove (101).
7. A self-cleaning device for a fluorescent dissolved oxygen sensor probe according to claim 6, characterized in that: The four sides of the fixing block (1) are respectively provided with V-shaped grooves (101), and the dissolved oxygen sensor (9) is fixed in one of the V-shaped grooves (101).