Water level sensor shell measuring rod structure

Abstract

A water level sensor shell measuring rod structure comprises a horizontally-arranged base, a vertically-arranged measuring rod is arranged in the middle area of the base, a threaded column is arranged on the lower portion of the measuring rod, the upper portion of the measuring rod comprises a first plate and a second plate which vertically extend upwards and are in a cross shape, and the width of the first plate and the width of the second plate are both matched with the diameter of the threaded column. The first plate is higher than the second plate, the middle area, close to the first plate, of the second plate in the width direction is higher than the two sides of the second plate in the width direction, two electrodes are arranged in the second plate and distributed on the two sides of the first plate, and the tips of the two electrodes penetrate out of the upper side face of the second plate and are lower than the first plate. The other ends of the two electrodes extend downwards to pass through the threaded column and then enter the base. By changing the upper structure of the measuring rod, the possibility of water hanging on the top surface of the measuring rod is reduced, and the false alarm probability of the sensor is reduced.

Description

Technical Field

[0001] The utility model relates to a water level sensor housing measuring rod structure. Background Art

[0002] See also Figure 1 Existing diesel filter water level sensors generally include a horizontally arranged base 1 with a cavity for mounting and storing a circuit board, a portion of the wiring harness, and sealant. A vertically arranged probe 2 is located in the center of the base 1. The lower portion of the probe 2 is a threaded post 21 for screwing onto the diesel filter. The upper portion of the probe 2 is a cylindrical body 22 with a horizontal top surface. Two electrodes 3 are located within the probe 2. One end of each electrode 3 extends downward into the base 1 housing to connect to the circuit board. The other end of each electrode 3 extends upward through the top of the probe 2, revealing a tip for detecting water. The exposed tips of the two electrodes 3 are separated by a baffle 4. The specific structure can be found in Chinese Patent CN218669631U. In actual use, dirt and impurities can accumulate on the top surface of the probe 2 and on the baffle 3. After the sensor measures water, the top surface of the probe 2 may become wet due to dirt and impurities. The presence of water between the electrodes 3 can cause a water-conducting connection between the two electrodes 3, resulting in a false alarm. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a water level sensor housing measuring rod structure, which reduces the possibility of water hanging on the top surface of the measuring rod by changing the upper structure of the measuring rod and reduces the probability of false alarm of the sensor.

[0004] In order to solve the above technical problems, the utility model provides a measuring rod structure of a water level sensor shell, including a horizontally arranged base, a vertically arranged measuring rod is provided in the middle area of the base, the lower part of the measuring rod is a threaded column, and the upper part of the measuring rod includes a first plate and a second plate extending vertically upward and in a cross shape. The widths of the first plate and the second plate match the diameter of the threaded column. The height of the first plate is higher than the height of the second plate. The height of the middle area of the second plate close to the first plate in the width direction is higher than the height on both sides of the second plate in the width direction. Two electrodes are provided in the second plate, and the two electrodes are distributed on both sides of the first plate. The tips of the two electrodes pass through the side of the second plate and are lower than the height of the first plate. The other ends of the two electrodes extend downward through the threaded column and enter the base.

[0005] Advantages of this new design: The structure of the upper portion of the traditional water level sensor rod is modified, replacing the original cylindrical flat top surface with a cross-shaped design. This reduces the top surface area and the chance of water accumulation. Furthermore, the top surface of the second plate where the electrode is located is a sloped surface with a high center and low sides, further reducing the possibility of water accumulation and the probability of false alarms from the sensor. Furthermore, the cross-shaped design is also lighter than the existing technology. BRIEF DESCRIPTION OF THE DRAWINGS

[0006] Figure 1 It is a structural diagram of an existing water level sensor.

[0007] Figure 2 It is a schematic diagram of the structure of this application. DETAILED DESCRIPTION

[0008] See also Figure 2 A measuring rod structure of a water level sensor housing includes a horizontally arranged base 1, a vertically arranged measuring rod 2 is provided in the middle area of the base 1, the lower part of the measuring rod 2 is a threaded column 21, and the upper part of the measuring rod 2 includes a first plate 5 and a second plate 6 extending vertically upward and in a cross shape. The widths of the first plate 5 and the second plate 6 match the diameter of the threaded column 21. The height of the first plate 5 is higher than the height of the second plate 6. The height of the middle area of the second plate 6 close to the first plate 5 in the width direction is higher than the height of both sides of the second plate 6 in the width direction. Two electrodes 3 are provided in the second plate 6, and the two electrodes 3 are distributed on both sides of the first plate 5. The tips of the two electrodes 3 pass through the upper side of the second plate 6 and are lower than the height of the first plate 5. The other ends of the two electrodes 3 extend downward through the threaded column 21 and enter the base 1.

[0009] Advantages of this new design: The structure of the upper portion of the traditional water level sensor rod is modified, replacing the original cylindrical flat top surface with a cross-shaped design. This reduces the top surface area and the chance of water accumulation. Furthermore, the top surface of the second plate where the electrode is located is a sloped surface with a high center and low sides, further reducing the possibility of water accumulation and the probability of false alarms from the sensor. Furthermore, the cross-shaped design is also lighter than the existing technology.

Claims

1. A water level sensor housing and measuring rod structure, comprising a horizontally arranged base, a vertically arranged measuring rod disposed in the middle region of the base, and a threaded column at the lower portion of the measuring rod, characterized in that: The upper part of the measuring rod includes a first plate and a second plate that extend vertically upward and are in a cross shape. The widths of the first plate and the second plate match the diameter of the threaded column. The height of the first plate is higher than the height of the second plate. The height of the middle area of the second plate close to the first plate in the width direction is higher than the height of the two sides of the second plate in the width direction. Two electrodes are provided in the second plate, and the two electrodes are distributed on both sides of the first plate. The tips of the two electrodes pass through the side of the second plate and are lower than the height of the first plate. The other ends of the two electrodes extend downward through the threaded column and enter the base.

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