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CN-224231685-U - Oxygen sensor

CN224231685UCN 224231685 UCN224231685 UCN 224231685UCN-224231685-U

Abstract

The utility model relates to the technical field of oxygen sensors, in particular to an oxygen sensor, which comprises an oxygen sensor body, wherein an empty filter assembly is fixedly sleeved at the upper end of the oxygen sensor body, a fixed assembly is fixedly connected at the lower end of the oxygen sensor, the empty filter assembly comprises a filter tube, a filter cover is rotatably connected at the upper end of the filter tube, a filter cup is arranged in the filter tube, bristles are attached to the outer side of the filter cup, and fan blades are arranged at the lower end of the filter tube. According to the utility model, the filtering pipe, the filtering cover and the filtering cup are used for filtering, so that the air inlet of the oxygen sensor body is not blocked by dust, a fan driven by a motor is also arranged to blow out dust, the dust blocking is avoided, the detection distortion caused by air inlet reduction is avoided, the detection result is ensured, and the filtering cup can be cleaned by bristles, so that the maintenance is convenient.

Inventors

  • SU XIAOYU
  • YANG LI
  • Yang Zeyang
  • YANG YANG

Assignees

  • 南京奇崛电子科技有限公司

Dates

Publication Date
20260512
Application Date
20250402

Claims (7)

  1. 1. An oxygen sensor comprises an oxygen sensor body (21), and is characterized in that an air filter assembly (10) is fixedly sleeved at the upper end of the oxygen sensor body (21), and a fixing assembly (30) is fixedly connected at the lower end of the oxygen sensor; The air filter assembly (10), the air filter assembly (10) comprises a filter tube (11), a filter cover (12) is rotatably connected to the upper end of the filter tube (11), a filter cup (17) is arranged in the filter tube (11), bristles (20) are attached to the outside of the filter cup (17), and fan blades (15) are arranged at the lower end of the filter tube (11).
  2. 2. An oxygen sensor according to claim 1, characterized in that the lower end of the filter cover (12) is fixedly connected with two connecting rods (18), the brush hairs (20) are fixedly connected to the inner sides of the connecting rods (18), and the lower ends of the two connecting rods (18) are fixedly connected with supporting rings (19).
  3. 3. The oxygen sensor of claim 1, wherein the bottom end of the filter tube (11) is fixedly connected with a motor support (13), a motor (14) is fixedly connected to the motor support (13), and the output end of the motor (14) penetrates through the motor support (13) and is fixedly connected with a fan blade (15).
  4. 4. The oxygen sensor of claim 1, wherein the filter tube (11) is fixedly connected with a filter cup holder (16), the filter cup (17) is sleeved in the filter cup holder (16), and the mesh number of the filter cup (17) is larger than that of the filter tube (11) and the filter cover (12).
  5. 5. An oxygen sensor according to claim 1, wherein the fixing component (30) comprises a supporting tube (31), a sealing tile (33) is hermetically sleeved at the lower end of the inner wall of the supporting tube (31), a spacer (35) is hermetically connected in a sliding manner in the sealing tile (33), and a wire sleeve (37) is fixedly connected at the upper end of the spacer (35).
  6. 6. An oxygen sensor according to claim 5, characterized in that the screw sleeve (37) is in threaded connection with the screw rod (36), the screw rod (36) is fixedly connected with the lower end of the oxygen sensor body (21), and a deflector rod (38) is arranged outside the screw sleeve (37).
  7. 7. The oxygen sensor of claim 6, wherein the deflector rod (38) penetrates through a deflector groove (32) formed in the pipe wall of the support pipe (31), the upper end face of the deflector groove (32) is of a stepped gradual change structure, and a rubber pad (34) is fixedly connected to the bottom end of the support pipe (31).

Description

Oxygen sensor Technical Field The utility model relates to the technical field of oxygen sensors, in particular to an oxygen sensor. Background The oxygen sensor is a detection device, is generally composed of a sensor main body and a detection probe, is mainly used for measuring the concentration of oxygen gas in the environment, measures the oxygen potential in the environment by utilizing a ceramic sensing element, calculates the corresponding oxygen concentration by a chemical balance principle, has wide application, and can see the body and the shadow of the oxygen sensor in coal mines, steel, petrochemical industry and medical treatment; The Chinese patent with the publication number of CN203595682U is searched, and an oxygen sensor is disclosed. The technical scheme includes that the oxygen concentration sensing element and the signal processing unit are adopted, the oxygen concentration sensing element adopts an electrochemical polarography diaphragm type oxygen electrode, the oxygen electrode can convert the percentage content of oxygen in gas into a weak electric signal proportional to the concentration of oxygen to be measured, the signal processing unit outputs the weak electric signal to the analog-to-digital converter after amplifying the weak electric signal, the weak electric signal is sampled and processed by the singlechip and then is sent to the display circuit and the output circuit, and the nixie tube displays the percentage content of the oxygen to be measured. The utility model has long service life, high measurement precision, good repeatability, simple structure, reliable performance, convenient debugging and maintenance, realizes one machine with multiple purposes, has low power consumption design of the whole machine, increases the transmission distance of the sensor and has strong shock resistance; However, in the above scheme, the oxygen sensor is contacted with air for a long time, and the air inlet hole of the oxygen sensor is blocked by dust in the air, so that the oxygen sensor is disabled. To this end, we propose an oxygen sensor. Disclosure of utility model The utility model mainly solves the technical problems existing in the prior art and provides an oxygen sensor. In order to achieve the above purpose, the utility model adopts the following technical scheme that the oxygen sensor comprises an oxygen sensor body, wherein an empty filter assembly is fixedly sleeved at the upper end of the oxygen sensor body, and a fixing assembly is fixedly connected at the lower end of the oxygen sensor; The air filter assembly comprises a filter tube, the upper end of the filter tube is rotationally connected with a filter cover, a filter cup is arranged in the filter tube, bristles are attached to the outside of the filter cup, and fan blades are arranged at the lower end of the filter tube. Preferably, the lower end of the filter cover is fixedly connected with two connecting rods, the bristles are fixedly connected to the inner sides of the connecting rods, and the lower ends of the two connecting rods are fixedly connected with supporting rings. Preferably, the bottom end of the filter tube is fixedly connected with a motor support, a motor is fixedly connected to the motor support, and the output end of the motor penetrates through the motor support and is fixedly connected with a fan blade. Preferably, the filter tube is internally fixedly connected with a filter cup holder, the filter cup is sleeved in the filter cup holder, and the mesh number of the filter cup is larger than that of the filter tube and the filter cover. Preferably, the fixing assembly comprises a supporting tube, a sealing tile is sleeved at the lower end of the inner wall of the supporting tube in a sealing mode, a spacer is connected in the sealing tile in a sliding mode in a sealing mode, and a wire sleeve is fixedly connected to the upper end of the spacer. Preferably, the silk cover threaded connection is on the lead screw, lead screw fixed connection is at oxygen sensor body lower extreme, the silk cover outside is provided with the driving lever. Preferably, the deflector rod penetrates through a deflector groove formed in the wall of the support tube, the upper end face of the deflector groove is of a stepped gradual change structure, and the bottom end of the support tube is fixedly connected with a rubber pad. Compared with the prior art, the oxygen sensor provided by the utility model has the following improvements and advantages: (1) The utility model adopts multilayer filtration, an empty filter assembly is fixedly sleeved at the upper end of an oxygen sensor body, a fixed assembly is fixedly connected at the lower end of the oxygen sensor, the empty filter assembly comprises a filter tube, a filter cover is rotatably connected at the upper end of the filter tube, a filter cup is arranged in the filter tube, bristles are attached to the outside of the filter cup, fan blades are arranged at the lowe