Oxygen content sensor structure with self-cleaning function

Abstract

The invention discloses an oxygen content sensor structure with a self-cleaning function, and relates to the technical field of sensors. A rotary motor is fixedly arranged on the middle side of the interior of the sealed shell, a cleaning assembly is fixedly installed at the bottom of a transmission shaft of the rotary motor in an inserted mode, the cleaning assembly and a fixing assembly are arranged on the bottom side of the sealed shell, and the length of the combined supporting rod extending out of the movable shell is adjusted to adjust whether the bottom of the movable shell makes contact with the ground or not. The device is convenient to use and suitable for different water body base conditions, the oxygen content of the water body in the standing and flowing states is detected through the expansion and contraction action of the blocking air bag, then the diversity function of water body detection is improved, the detection window is cleaned through the rotating frame and a piston plate in the rotating frame, and meanwhile the self-cleaning action of the cleaning brush can be achieved; and the self-cleaning effect of the whole device is improved.

Description

Technical Field

[0001] The invention relates to the technical field of sensors, in particular to an oxygen content sensor structure with a self-cleaning function. Background Art

[0002] An oxygen sensor is a device used to measure the oxygen concentration in a specific environment and convert the data into an electrical signal. It plays an important role in many fields. A sensor with a self-cleaning function is a sensor that can automatically clean its own surface. It is usually used in harsh environments or scenarios that require long-term stable operation.

[0003] The cleaning mechanism of existing self-cleaning sensors may not be able to completely remove all pollutants, especially in extreme environments or after long-term use, some pollutants may still remain, affecting the performance of the sensor; at the same time, the fixed structure of existing sensors is mostly relatively simple, which is difficult to adapt to the complex situation of different water bases, resulting in the sensor body easily touching the bottom. However, when the sensor touches the bottom, it is easy for factors such as mud on the bottom of the water body to cause inaccurate sensor data. Summary of the invention

[0004] Therefore, in order to solve the above-mentioned shortcomings, the present invention provides an oxygen content sensor structure with a self-cleaning function.

[0005] The present invention is implemented in this way: an oxygen content sensor structure with a self-cleaning function is constructed, and the device includes a sealed housing; a rotary motor is fixedly arranged on the middle side of the sealed housing, and a cleaning component is plugged and fixedly installed at the bottom of the transmission shaft of the rotary motor; a through hole is fixedly arranged on both the left and right sides of the sealed housing, and a fixing component is plugged and arranged inside the through hole; a PCB board is arranged on the top side of the sealed housing, and the top of the PCB board is fixedly connected to an external cable;

[0006] The fixed component includes an electric propulsion component fixedly arranged at the through holes on the left and right sides of the sealed shell; a mobile shell is fixedly arranged at the bottom of the electric propulsion component; a strut assembly with an adjusting function is fixedly installed inside the mobile shell; a sealing spacer with a separating function is fixedly arranged inside the mobile shell by gluing; a first coil component is fixedly installed on the middle side of the sealing spacer by bolts; a flexible metal sheet is fixedly installed on the middle top side of the sealing spacer; a sealing airbag with a sealing function is gluingly fixedly arranged on the top of the flexible metal sheet.

[0007] Preferably, the electric propulsion assembly includes a sealed outer cylinder fixedly installed at the through holes on the left and right sides of the sealed shell; a magnetic-isolating inner cylinder is fixedly installed on the middle side of the sealed outer cylinder; the inner wall of the magnetic-isolating inner cylinder is provided with six groups of annular grooves equidistantly from top to bottom, and an electromagnetic block is fixedly installed inside the annular groove; the side surface of the electromagnetic block is fixedly connected to the current controller terminal plate through a cable, and the current controller is fixedly arranged on the outer wall of the magnetic-isolating inner cylinder.

[0008] Preferably, a timing controller is fixedly installed on the front outer wall of the magnetic isolation inner cylinder by bolts, and the timing controller is fixedly connected to the current controller by cables; a permanent magnet block is slidably arranged on the inner ring wall of the annular groove of the magnetic isolation inner cylinder; a connecting rod is inserted into the bottom of the permanent magnet block, and the bottom of the connecting rod is fixedly connected to the top of the movable shell.

[0009] Preferably, the support rod assembly includes a second coil part fixedly mounted at the arc-shaped groove on the side of the sealing spacer, and the second coil part is specifically composed of an outer shell, a coil arranged inside the outer shell, and a cast iron plate fixedly arranged at the middle side groove of the outer shell; a combined support rod is slidably arranged at the middle side groove of the outer shell of the second coil part.

[0010] Preferably, a pulse power supply is fixedly installed in the internal coil of the second coil member through a cable, and the pulse power supply is fixedly arranged on the side of the sealing spacer plate; a sensor element with data acquisition function is fixedly installed on the inner wall of the arc groove on the side of the sealing spacer by adhesion.

[0011] Preferably, the cleaning component includes a rotating frame fixedly mounted at the bottom of the rotary motor drive shaft inside the sealed shell; filter holes are provided at the middle ends of the left and right side frames of the rotating frame, and conical holes are provided at the ends of the left and right side frames of the rotating frame; cleaning brushes with cleaning functions are fixedly provided on the upper and lower sides of the ends of the left and right side frames of the rotating frame.

[0012] Preferably, a slide groove is provided inside the rotating frame, and a permanent magnet block is slidably provided on the slide groove; a third coil component is fixedly installed on the middle side of the rotating frame by bolts, and a permanent magnet block and a piston plate are slidably provided inside the rotating frame; the permanent magnet block is adhesively fixed on the side of the piston plate; the ratio of the length of the slide groove inside the rotating frame to the length of the piston plate is 2:1.

[0013] Preferably, a telescopic cylinder is provided at the connection between the middle through hole of the rotating frame and the rotary motor inside the sealed shell, and a transverse groove is provided at the bottom of the sealed shell for placing the rotating frame.

[0014] Preferably, the filter mesh holes and the surface of the conical holes on the rotating frame are both provided with filter membranes for filtration, and the conical holes are in a conical structure that is wide at the top and narrow at the bottom.

[0015] A method for using an oxygen content sensor structure with a self-cleaning function comprises the following steps:

[0016] Step 1: Adjustment and installation; the staff places the device in the water body to be detected, and connects the device to the external control terminal through an external cable; and controls the fixed component through the external control terminal to perform the regulation step. Since the water body at the bottom of the water body is easily affected by debris and the water body flows under the sealed shell, the external control terminal provides power control for the pulse power supply at this time, so that the second coil part is energized in time to absorb the combined support rod sliding on the side. Due to the gravity factor, the sealed shell and the mobile shell slide downward, thereby adjusting the length of the combined support rod extending out of the mobile shell, and realizing the adjustment action of whether the bottom of the mobile shell touches the ground;

[0017] Step 2: sensing of flowing water data; then, the control terminal controls the electric propulsion assembly and the telescopic cylinder at the end of the rotary motor drive shaft inside the sealed shell to work synchronously, so that the timing controller in the electric propulsion assembly is energized step by step from top to bottom, and outputs electrical energy to the electromagnetic block through the current controller. Here, the permanent magnet block and its bottom connecting rod are pushed downward synchronously through the magnetic field relationship between the electromagnetic block and the permanent magnet block. Six groups of electromagnetic blocks and timing controllers are provided here to realize six-level propulsion adjustment of the permanent magnet block, thereby pushing the sealed shell and the mobile shell to separate and adjust their distance. Here, the water flows into the gap between the sealed shell and the mobile shell, and then the oxygen content of the water is detected by the sensor elements inside the sealed shell and the mobile shell;

[0018] Step 3, static fluid data sensing; since part of the water body to be detected is in a static state, the first coil part is intermittently energized through the PCB board inside the sealed shell and the external control terminal. The first coil part is energized to generate magnetism and drive the flexible metal sheet to perform a wave-shaped movement of bending up and down. The top of the flexible metal sheet squeezes the plugging airbag to extend out of the top through hole of the mobile shell. The expansion and contraction of the plugging airbag causes a pressure difference between the gap between the sealed shell and the mobile shell and the external environment, thereby driving the static water body around the sealed shell to flow through the gap between the sealed shell and the mobile shell, and detecting the oxygen content of the water body through the sensor elements inside the sealed shell and the mobile shell;

[0019] Step 4, adjust the cleaning; at the same time, by controlling the rotary motor and the third coil part inside the sealed shell to be energized synchronously, the rotary motor drives the rotating frame to swing left and right in a fan shape to clean the detection window above the sensor element inside the mobile shell. At the same time, during the rotation of the rotating frame, water will enter the inside of the rotating frame through the filter holes and the conical holes. At this time, the third coil part is energized to generate magnetism to push the permanent magnet block and the piston plate to slide inside the rotating frame. Since the piston plate slides here to block the filter holes, the water is squeezed by the piston plate to flow out through the conical holes and rinse the cleaning brush, so as to improve the cleaning effect of the cleaning brush.

[0020] The present invention has the following advantages: The present invention provides an oxygen content sensor structure with a self-cleaning function through improvement, which has the following improvements compared with similar devices:

[0021] The oxygen content sensor structure with self-cleaning function described in the present invention is configured with a cleaning component and a fixing component on the bottom side of a sealed shell, and the length of a combined support rod extending out of the movable shell is adjusted to adjust whether the bottom of the movable shell touches the ground, so as to be suitable for different water base conditions. The expansion and contraction of the sealing airbag is used to solve the problem of oxygen content detection in water under static and flowing states, thereby improving the diversity of water body detection functions. The rotating frame and the piston plate inside it can realize the self-cleaning action of the cleaning brush while cleaning the detection window, thereby improving the self-cleaning effect of the overall device. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the structure of the present invention;

[0023] Figure 2 It is a schematic diagram of the internal structure of the sealed housing of the present invention;

[0024] Figure 3 It is a schematic diagram of the exploded structure of the sealing housing, the cleaning component and the fixing component of the present invention;

[0025] Figure 4 It is a schematic diagram of the decomposed structure of the fixing assembly of the present invention;

[0026] Figure 5 is a schematic cross-sectional structural diagram of an electric propulsion assembly of the present invention;

[0027] Figure 6 It is a schematic diagram of the axial structure of the support rod assembly of the present invention;

[0028] Figure 7 It is a schematic diagram of the cross-sectional structure of the cleaning component of the present invention.

[0029] Among them: sealed shell-1, cleaning component-2, fixed component-3, external cable-4, rotating frame-21, filter hole-22, conical hole-23, cleaning brush-24, third coil component-25, permanent magnet block-26, piston plate-27, electric propulsion component-31, movable shell-32, strut assembly-33, sealing spacer-34, first coil component-35, flexible metal sheet-36, blocking airbag-37, sealed outer cylinder-311, magnetic isolation inner cylinder-312, electromagnetic block-313, current controller-314, timing controller-315, permanent magnet block-316, second coil component-331, combined strut-332, pulse power supply-333, sensor element-334. DETAILED DESCRIPTION

[0030] The following is combined with Figure 1 to Figure 7 The principles and features of the present invention are described, and the examples given are only used to explain the present invention and are not used to limit the scope of the present invention. In the following paragraphs, the present invention is described in more detail by way of example with reference to the accompanying drawings. It should be noted that the drawings are all in a very simplified form and are not in precise proportions, and are only used to facilitate and clearly assist in explaining the purpose of the embodiments of the present invention.

[0031] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0032] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", and "set" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal connection of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. The following is an explanation of the embodiments of the present invention based on its overall structure.

[0033] Embodiment 1:

[0034] See also Figure 1 to Figure 7 The oxygen content sensor structure with a self-cleaning function of the present invention comprises a sealed housing 1; a rotary motor is fixedly arranged at the middle side of the sealed housing 1, and a cleaning component 2 is plugged and fixedly installed at the bottom of the transmission shaft of the rotary motor; a through hole is fixedly arranged at both the left and right sides of the sealed housing 1, and a fixing component 3 is plugged and arranged inside the through hole; a PCB board is arranged at the top side of the sealed housing 1, and the top of the PCB board is fixedly connected to an external cable 4;

[0035] The fixed component 3 includes an electric propulsion component 31 fixedly arranged at the through holes on the left and right sides of the sealed shell 1; a movable shell 32 is fixedly arranged at the bottom of the electric propulsion component 31; a strut assembly 33 with an adjusting function is fixedly installed inside the movable shell 32; a sealing spacer 34 with a separating function is fixedly arranged inside the movable shell 32 by gluing; a first coil component 35 is fixedly installed on the middle side of the sealing spacer 34 by bolts; a flexible metal sheet 36 is fixedly installed on the middle top side of the sealing spacer 34; a sealing airbag 37 with a sealing function is gluingly fixedly arranged on the top of the flexible metal sheet 36, and a sealing liquid is gluingly arranged at the contact between the top hole wall of the movable shell 32 and the sealing airbag 37.

[0036] The electric propulsion assembly 31 includes a sealed outer cylinder 311 fixedly installed at the through holes on the left and right sides of the sealed shell 1; a magnetic isolation inner cylinder 312 is fixedly installed on the middle side of the sealed outer cylinder 311; the inner wall of the magnetic isolation inner cylinder 312 is equidistantly provided with six groups of annular grooves from top to bottom, and an electromagnetic block 313 is fixedly installed inside the annular groove; the side of the electromagnetic block 313 is fixedly connected to the current controller 314 terminal plate through a cable, and the current controller 314 is fixedly set on the outer wall of the magnetic isolation inner cylinder 312; a timing controller 315 is fixedly installed on the front outer wall of the magnetic isolation inner cylinder 312 by bolts, and the timing controller 315 is fixedly connected to the current controller 314 through a cable; a permanent magnet block 316 is slidably provided on the inner ring wall of the annular groove of the magnetic isolation inner cylinder 312; a connecting rod is inserted into the bottom of the permanent magnet block 316, and the bottom of the connecting rod is fixedly connected to the top of the movable shell 32.

[0037] The support rod assembly 33 includes a second coil component 331 fixedly installed at the arc groove on the side of the sealing spacer 34, and the second coil component 331 is specifically composed of an outer shell, a coil arranged inside the outer shell, and a cast iron plate fixedly arranged at the middle side groove of the outer shell; a combined support rod 332 is slidably arranged at the middle side groove of the outer shell of the second coil component 331; a pulse power supply 333 is fixedly installed on the internal coil of the second coil component 331 through a cable, and the pulse power supply 333 is fixedly arranged on the side of the plate body of the sealing spacer 34; a sensor element 334 with a data acquisition function is fixedly installed on the inner wall of the arc groove on the side of the sealing spacer 34 by gluing.

[0038] Embodiment 2:

[0039] See also Figure 1 to Figure 7, an oxygen content sensor structure with a self-cleaning function of the present invention, compared with the first embodiment, this embodiment also includes: the cleaning component 2 includes a rotating frame 21 fixedly installed at the bottom of the rotary motor drive shaft inside the sealed housing 1; filter holes 22 are opened at the middle ends of the left and right sides of the rotating frame 21, and conical holes 23 are opened at the ends of the left and right sides of the rotating frame 21; cleaning brushes 24 with a cleaning function are fixedly arranged on the upper and lower sides of the ends of the left and right sides of the rotating frame 21; a slide groove is arranged inside the rotating frame 21, and a permanent magnet block 26 is slidably arranged on the slide groove; a third coil member 25 is fixedly installed on the middle side of the rotating frame 21 by bolts, and a permanent magnet block 26 and a piston plate 27 are slidably arranged inside the rotating frame 21; the permanent magnet block 26 is adhesively fixedly installed on the side of the piston plate 27; the ratio of the length of the slide groove inside the rotating frame 21 to the length of the piston plate 27 is 2:1.

[0040] A telescopic cylinder is provided at the connection between the side through hole of the rotating frame 21 and the rotary motor inside the sealed shell 1, and a horizontal groove is provided at the bottom of the sealed shell 1 for placing the rotating frame 21; the filter mesh hole 22 and the conical hole 23 on the rotating frame 21 are both provided with filter membranes for filtration, and the conical hole 23 is a conical structure that is wide at the top and narrow at the bottom.

[0041] The working principle of the above-mentioned oxygen sensor structure with self-cleaning function is as follows:

[0042] First, when using this device, first place the device in the working area, and then connect the device to an external power source to provide the device with the power required for operation;

[0043] Second, the staff places the device in the water body to be detected, and connects the device to the external control terminal through the external cable 4; and controls the fixed component 3 to perform the control step through the external control terminal. Since the water body at the bottom of the water body is easily affected by debris and the water body flows under the sealed shell 1, the pulse power supply 333 is provided with power control through the external control terminal, so that the second coil 331 is energized in time to absorb the combined support rod 332 sliding sideways therein, and the sealed shell 1 and the movable shell 32 slide downward due to the gravity factor, thereby adjusting the length of the combined support rod 332 extending out of the movable shell 32, so as to achieve the adjustment action of whether the bottom of the movable shell 32 touches the ground;

[0044] Third, the control terminal is then used to control the electric propulsion assembly 31 and the telescopic cylinder at the end of the rotary motor drive shaft inside the sealed shell 1 to work synchronously, so that the timing controller 315 in the electric propulsion assembly 31 is gradually energized from top to bottom, and outputs electrical energy to the electromagnetic block 313 through the current controller 314. Here, the permanent magnet block 316 and its bottom connecting rod are pushed downward synchronously through the magnetic field relationship between the electromagnetic block 313 and the permanent magnet block 316. Six groups of electromagnetic blocks 313 and timing controllers 315 are provided here to realize six-level propulsion adjustment of the permanent magnet block 316, thereby pushing the sealed shell 1 and the mobile shell 32 to separate and adjust their distance. Here, water flows into the gap between the sealed shell 1 and the mobile shell 32, and the oxygen content of the water is detected by the sensor element 334 inside the sealed shell 1 and the mobile shell 32;

[0045] Fourth, since part of the water to be detected is in a static state, the first coil member 35 is intermittently energized through the internal PCB board of the sealed housing 1 and the external control terminal. The first coil member 35 is energized to generate magnetism and drive the flexible metal sheet 36 to perform a wave-shaped motion of bending up and down. The top of the flexible metal sheet 36 squeezes the plugging airbag 37 to extend out of the top through hole of the moving housing 32. The expansion and contraction of the plugging airbag 37 causes a pressure difference between the gap between the sealed housing 1 and the moving housing 32 and the external environment, thereby driving the static water around the sealed housing 1 to flow through the gap between the sealed housing 1 and the moving housing 32, and detecting the oxygen content of the water through the sensor element 334 inside the sealed housing 1 and the moving housing 32;

[0046] Fifth, by controlling the rotary motor and the third coil member 25 inside the sealed housing 1 to be energized synchronously, the rotary motor drives the rotating frame 21 to swing left and right in a fan shape to clean the detection window above the sensor element 334 inside the movable housing 32. At the same time, during the rotation of the rotating frame 21, water will enter the rotating frame 21 through the filter hole 22 and the tapered hole 23. At this time, the third coil member 25 is energized to generate magnetism to push the permanent magnet block 26 and the piston plate 27 to slide inside the rotating frame 21. Since the piston plate 27 slides here to block the filter hole 22, the water is squeezed by the piston plate 27 to flow out through the tapered hole 23 and rinse the cleaning brush 24, so as to improve the cleaning effect of the cleaning brush 24.

[0047] The present invention provides an oxygen content sensor structure with a self-cleaning function through improvement. The cleaning component 2 and the fixing component 3 are arranged on the bottom side of the sealing shell 1. The length of the combined support rod 332 extending out of the movable shell 32 is adjusted to adjust whether the bottom of the movable shell 32 touches the ground, so as to be suitable for different water base conditions. The expansion and contraction action of the blocking airbag 37 is used to solve the problem of oxygen content detection of water in static and flowing states, thereby improving the diversity of water body detection functions. The rotating frame 21 and the piston plate 27 therein can realize the self-cleaning action of the cleaning brush 24 while cleaning the detection window, thereby improving the self-cleaning effect of the overall device.

[0048] The above shows and describes the basic principles, main features and advantages of the present invention, and the standard parts used in the present invention can be purchased from the market, and special-shaped parts can be customized according to the description in the specification and the drawings. The specific connection methods of each part adopt the conventional means such as mature bolts, rivets, welding, etc. in the prior art. The machinery, parts and equipment all adopt the conventional models in the prior art, and the circuit connection adopts the conventional connection method in the prior art, which will not be described in detail here.

[0049] The above description of the disclosed embodiments enables one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An oxygen content sensor structure with a self-cleaning function, comprising a sealed housing (1); characterized in that: A rotary motor is fixedly arranged at the middle side of the sealed housing (1), and a cleaning component (2) is plugged and fixedly installed at the bottom of the transmission shaft of the rotary motor; a through hole is fixedly arranged at both the left and right sides of the sealed housing (1), and a fixing component (3) is plugged and arranged inside the through hole; a PCB board is arranged at the top side of the sealed housing (1), and the top of the PCB board is fixedly connected to an external cable (4); The fixed component (3) comprises an electric propulsion component (31) fixedly arranged at the through holes on the left and right sides of the sealed shell (1); a movable shell (32) is fixedly arranged at the bottom of the electric propulsion component (31); a strut component (33) with an adjustment function is fixedly installed inside the movable shell (32); a sealing spacer (34) with a separation function is fixedly arranged inside the movable shell (32) by gluing; a first coil component (35) is fixedly installed on the middle side of the sealing spacer (34) by bolts; a flexible metal sheet (36) is fixedly installed on the middle top side of the sealing spacer (34); a sealing airbag (37) with a sealing function is gluingly fixedly arranged on the top of the flexible metal sheet (36).

2. The oxygen content sensor structure with self-cleaning function according to claim 1, characterized in that: The electric propulsion assembly (31) comprises a sealed outer cylinder (311) fixedly mounted at the through holes on the left and right sides of the sealed shell (1); a magnetic-isolating inner cylinder (312) is fixedly mounted on the middle side of the sealed outer cylinder (311); the inner wall of the magnetic-isolating inner cylinder (312) is provided with six groups of annular grooves equidistantly from top to bottom, and an electromagnetic block (313) is fixedly mounted inside the annular groove; the side of the electromagnetic block (313) is fixedly connected to the current controller (314) terminal plate via a cable, and the current controller (314) is fixedly mounted on the outer wall of the magnetic-isolating inner cylinder (312).

3. The oxygen content sensor structure with self-cleaning function according to claim 2, characterized in that: A timing controller (315) is fixedly installed on the front outer wall of the magnetic isolation inner cylinder (312) by bolts, and the timing controller (315) is fixedly connected to the current controller (314) by cables; a permanent magnet block (316) is slidably arranged on the inner ring wall of the annular groove of the magnetic isolation inner cylinder (312); a connecting rod is inserted at the bottom of the permanent magnet block (316), and the bottom of the connecting rod is fixedly connected to the top of the movable shell (32).

4. The oxygen content sensor structure with self-cleaning function according to claim 3, characterized in that: The support rod assembly (33) includes a second coil member (331) fixedly mounted at an arc-shaped groove on the side of the sealing spacer (34), and the second coil member (331) specifically comprises an outer shell, a coil arranged inside the outer shell, and a cast iron plate fixedly arranged at a through groove in the middle side of the outer shell; a combined support rod (332) is slidably arranged at the through groove in the middle side of the outer shell of the second coil member (331).

5. The oxygen content sensor structure with self-cleaning function according to claim 4, characterized in that: The internal coil of the second coil member (331) is fixedly mounted with a pulse power supply (333) via a cable, and the pulse power supply (333) is fixedly arranged on the side of the sealing spacer (34) plate; a sensor element (334) with a data acquisition function is fixedly mounted on the inner wall of the arc-shaped groove on the side of the sealing spacer (34) by gluing.

6. The oxygen content sensor structure with self-cleaning function according to claim 5, characterized in that: The cleaning assembly (2) comprises a rotating frame (21) fixedly mounted at the bottom of the rotary motor drive shaft inside the sealed housing (1); filter holes (22) are provided at the middle ends of the left and right frame bodies of the rotating frame (21), and conical holes (23) are provided at the ends of the left and right frame bodies of the rotating frame (21); cleaning brushes (24) with a cleaning function are fixedly provided at the upper and lower sides of the ends of the left and right frame bodies of the rotating frame (21).

7. The oxygen content sensor structure with self-cleaning function according to claim 6, characterized in that: A slide groove is arranged inside the rotating frame (21), and a permanent magnet block (26) is slidably arranged on the slide groove; a third coil member (25) is fixedly installed on the middle side of the rotating frame (21) by bolts, and a permanent magnet block (26) and a piston plate (27) are slidably arranged inside the rotating frame (21); the permanent magnet block (26) is adhesively fixedly installed on the side of the piston plate (27); the ratio of the length of the slide groove inside the rotating frame (21) to the length of the piston plate (27) is 2:

1.

8. The oxygen content sensor structure with self-cleaning function according to claim 7, characterized in that: A telescopic cylinder is provided at the connection between the middle through hole of the rotating frame (21) and the rotary motor inside the sealed housing (1), and a transverse groove is provided at the bottom of the sealed housing (1) for accommodating the rotating frame (21).

9. The oxygen content sensor structure with self-cleaning function according to claim 8, characterized in that: The filter mesh holes (22) and the surfaces of the conical holes (23) on the rotating frame (21) are both provided with filter membranes for filtering, and the conical holes (23) are in a conical structure that is wide at the top and narrow at the bottom.

10. A method for using an oxygen sensor structure with a self-cleaning function, implementing the oxygen sensor structure with a self-cleaning function as claimed in claim 9, characterized in that: The following steps are involved: Step 1: Adjustment and installation; the staff places the device in the water body to be detected, and connects the device to the external control terminal through an external cable (4); and controls the fixed component (3) through the external control terminal to execute the regulation step. Since the water body at the bottom of the water body is easily affected by debris and flows under the sealed shell (1), the pulse power supply (333) is provided with power control through the external control terminal, so that the second coil member (331) is energized in time to absorb the combined support rod (332) sliding sideways therein, and the sealed shell (1) and the movable shell (32) slide downward due to the gravity factor, thereby adjusting the length of the combined support rod (332) extending out of the movable shell (32), thereby realizing the adjustment action of whether the bottom of the movable shell (32) touches the ground; Step 2: sensing the data of the flowing water body; then, the control terminal controls the electric propulsion assembly (31) and the telescopic cylinder at the end of the rotary motor drive shaft inside the sealed shell (1) to work synchronously, so that the timing controller (315) in the electric propulsion assembly (31) is energized step by step from top to bottom, and outputs electric energy to the electromagnetic block (313) through the current controller (314). Here, the permanent magnet block (316) and its bottom connecting rod are pushed downward synchronously through the magnetic field relationship between the electromagnetic block (313) and the permanent magnet block (316). Six groups of electromagnetic blocks (313) and timing controllers (315) are provided here to realize six-level propulsion adjustment of the permanent magnet block (316), thereby pushing the sealed shell (1) and the movable shell (32) to separate and adjust their distance. Here, the water body flows into the gap between the sealed shell (1) and the movable shell (32), and then the oxygen content of the water body is detected by the sensor element (334) inside the sealed shell (1) and the movable shell (32); Step 3: static fluid data sensing; since part of the water body to be detected is in a static state, the first coil member (35) is intermittently energized through the internal PCB board of the sealed housing (1) and the external control terminal. The first coil member (35) is energized to generate magnetism and drive the flexible metal sheet (36) to perform a wave-shaped motion of bending up and down. The top of the flexible metal sheet (36) squeezes the plugging airbag (37) to extend out of the top through hole of the movable housing (32). The expansion and contraction of the plugging airbag (37) causes a pressure difference between the gap between the sealed housing (1) and the movable housing (32) and the external environment, thereby driving the static water body around the sealed housing (1) to flow through the gap between the sealed housing (1) and the movable housing (32), and detecting the oxygen content of the water body through the sensor elements (334) inside the sealed housing (1) and the movable housing (32); Step 4, adjusting the cleaning; at the same time, by controlling the rotary motor and the third coil member (25) inside the sealed housing (1) to be energized synchronously, the rotary motor drives the rotating frame (21) to swing left and right in a fan shape to clean the detection window above the sensor element (334) inside the movable housing (32). At the same time, during the rotation of the rotating frame (21), water will enter the rotating frame (21) through the filter hole (22) and the tapered hole (23). At this time, the third coil member (25) is energized to generate magnetism to push the permanent magnet block (26) and the piston plate (27) to slide inside the rotating frame (21). Since the piston plate (27) slides here to block the filter hole (22), the water is squeezed by the piston plate (27) to flow out through the tapered hole (23) and rinse the cleaning brush (24), so as to improve the cleaning effect of the cleaning brush (24).

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