Full-spectrum water quality detection sensor

Abstract

The invention relates to the technical field of water quality detection sensors, in particular to a full-spectrum water quality detection sensor. According to the technical scheme, the device comprises a device body and an optical system installed in the device body, the device body is provided with a notch, the device further comprises optical windows which are fixedly installed on the device body and located on the two sides of the notch, and isolation grooves which are formed in the device body and located on one sides of the optical windows, and isolation films are installed in the isolation grooves. A plugging piece for plugging a gap between the isolating membrane and the isolating groove is mounted in the isolating groove; and the plugging piece comprises a plurality of groups of elastic cylindrical plugging strips which are rotationally mounted on the upper side and the lower side of the isolating membrane. The optical window is thoroughly prevented from being in direct contact with a water body through a physical isolation mechanism of the windable transparent isolation film, the problems of light transmittance reduction and measurement drift caused by pollutant attachment are fundamentally eliminated, compared with a traditional brush cleaning mode, the window scratching risk is completely eradicated, and the maintenance period is prolonged to be more than 5 times that of the traditional mode.

Description

Technical Field

[0001] This invention relates to the field of water quality detection sensor technology, and in particular to a full-spectrum water quality detection sensor. Background Technology

[0002] The emergence of immersion-type full-spectrum water quality sensors stems from the fundamental limitations of traditional water quality monitoring methods—laboratory chemical analysis is time-consuming and labor-intensive, and cannot provide real-time early warnings; single-parameter electrode methods are susceptible to cross-interference; and spectrophotometers require complex preprocessing and have low efficiency in multi-parameter detection. Its core function lies in reconstructing the water quality monitoring paradigm: through a single spectral scan combined with a chemometric model, it simultaneously outputs parameters such as COD, TOC, BOD5, nitrate, turbidity, color, and dissolved organic matter, forming a "water quality fingerprint database" to trace pollution sources and provide early warnings for unknown pollutants. Simultaneously, it provides process control decisions for wastewater treatment plant aeration optimization and drinking water plant deep treatment startup.

[0003] The device includes an optical system and two optical windows. Light comes into contact with water passing between the first and second optical windows and enters the detector through the second optical window. During continuous use, the water can easily contaminate the optical windows. In the prior art, the optical windows are generally cleaned by a cleaning mechanism using a brush. However, this method is not ideal, and the rotating brush may scratch the optical windows, affecting their optical performance and leading to inaccurate detection data. Summary of the Invention

[0004] The purpose of this invention is to address the problems existing in the background technology by proposing a full-spectrum water quality detection sensor that can prevent the optical window from being contaminated, eliminates the need for a cleaning mechanism, and prevents the optical window from being scratched.

[0005] The technical solution of the present invention: A full-spectrum water quality detection sensor, comprising a body and an optical system installed inside the body, wherein the body has a notch, and further comprising: Optical windows fixedly mounted on the body and located on both sides of the notch; An isolation groove is provided inside the body and located on one side of the optical window. An isolation membrane is installed in the isolation groove. A sealing component is installed in the isolation groove to seal the gap between the isolation membrane and the isolation groove. The sealing component includes multiple sets of elastic cylindrical sealing strips that are rotatably installed on the upper and lower sides of the isolation membrane. A first winding rod and a second winding rod are rotatably installed inside the machine body and fixedly connected to one end of the isolation membrane. The machine body is equipped with a drive component that drives the first winding rod to rotate and a transmission component that drives multiple sealing strips to rotate synchronously and is linked with the drive component. The drive component includes a speed change mechanism that detects the thickness of the first winding rod and changes the angular velocity of the first winding rod. Optionally, the driving component further includes a motor fixedly installed inside the machine body, a variable diameter pulley fixedly installed on the output shaft of the first motor, and a first pulley fixedly installed on the first winding rod. The variable diameter pulley and the first pulley are connected by a first transmission belt, and a tensioning component for tensioning the first transmission belt is installed inside the machine body.

[0006] Optionally, the variable diameter pulley includes two connecting discs fixedly mounted on the motor output shaft, multiple support blocks are slidably mounted between the two connecting discs, connecting rods are rotatably mounted on the support blocks, and a pressure plate slidably mounted inside the machine body and rotatably connected to the multiple connecting rods is provided on one of the connecting discs.

[0007] Optionally, the speed change mechanism includes the variable diameter pulley, a detection component for the thickness of the first winding rod, and a linkage component for driving the pressure plate to move.

[0008] Optionally, the detection assembly includes a detection cylinder fixedly installed inside the machine body, a first sealing block is sealed and slidably installed inside the detection cylinder, a detection rod is fixedly installed on the first sealing block, a rolling element is rotatably installed on the detection rod via a connecting seat, and a first spring is fixedly installed between the first sealing block and the detection cylinder.

[0009] Optionally, the linkage component includes a transmission cylinder fixedly installed inside the machine body, a second sealing block slidably installed inside the transmission cylinder, and a drive rod fixedly installed on the second sealing block and fixedly connected to the pressure plate.

[0010] Optionally, both ends of the transmission cylinder are fixedly installed with conveying pipes, and the conveying pipes correspond one-to-one with the two ends of the detection cylinder and are fixedly connected and communicate with each other. The transmission cylinder, the detection cylinder and the conveying pipes are all filled with hydraulic medium.

[0011] Optionally, the transmission assembly includes a second pulley fixedly installed at one end of the sealing strip, a second transmission belt installed between two adjacent second pulleys, and the output shaft of the motor and one of the second pulleys are linked by a conveyor belt.

[0012] Optionally, one end of the second winding rod is equipped with a pressure-applying component that applies constant pressure to the second winding rod. The pressure-applying component includes multiple discs fixedly installed on the second winding rod, multiple protrusions fixedly installed on the discs, and guide cylinders corresponding to the discs fixedly installed inside the machine body. A pressure-applying rod is slidably installed inside the guide cylinder, and a second spring is installed at a height between the pressure-applying rod and the guide cylinder.

[0013] Optionally, the body is equipped with a sealing assembly for sealing the gap between the optical window and the body. The sealing assembly includes a first sealing ring fixedly installed in the body and located on both ends of the optical window, and a second sealing ring fixedly installed on the body and located on the side of the optical window.

[0014] In summary, this application includes at least one of the following beneficial technical effects: This invention completely prevents the optical window from directly contacting the water body through the physical isolation mechanism of a rollable transparent isolation film, eliminating the problems of reduced light transmittance and measurement drift caused by pollutant adhesion at the source. Compared with the traditional brush cleaning method, it eliminates the risk of window scratches, extends the maintenance cycle to more than 5 times that of the traditional method, and reduces the overall operation and maintenance cost by 60%. The dynamic multi-stage elastic sealing system provides a reliable seal during membrane movement, preventing water from seeping into the machine body and damaging precision optical components. The intelligent variable speed winding mechanism detects changes in the diameter of the first winding rod in real time through a hydraulic linkage device and automatically adjusts the transmission ratio of the variable diameter pulley to ensure that the isolation membrane moves smoothly at a constant linear speed, avoiding membrane stretching, deformation, or loosening caused by an increase in the roll diameter. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of a full-spectrum water quality monitoring sensor; Figure 2 This is a schematic diagram of the optical window structure; Figure 3 This is a schematic diagram of the internal structure of a full-spectrum water quality monitoring sensor; Figure 4 This is a schematic diagram of the transmission assembly. Figure 5 This is a schematic diagram of the pressure-applying component; Figure 6 This is a schematic diagram of the drive component. Figure 7 This is a schematic diagram of a variable diameter pulley.

[0016] Reference numerals: 1. Body; 11. Notch; 2. Optical window; 3. Sealing assembly; 31. First sealing ring; 32. Second sealing ring; 4. Isolation groove; 41. Isolation membrane; 5. Sealing component; 51. Sealing strip; 6. First winding rod; 61. Second winding rod; 7. Drive component; 71. Motor; 72. Variable diameter pulley; 721. Connecting disc; 722. Support block; 723. Connecting rod; 724. Pressure plate; 725. Perforation; 73. First pulley; 74. First transmission belt; 75. Detection assembly; 751, detection cylinder; 752, first sealing block; 753, detection rod; 754, connecting seat; 755, rolling element; 756, first spring; 76, linkage assembly; 761, transmission cylinder; 762, second sealing block; 763, drive rod; 77, conveying pipe; 8, pressure application component; 81, disc; 82, protrusion; 83, guide cylinder; 84, pressure rod; 85, second spring; 9, transmission assembly; 91, second pulley; 92, second transmission belt; 93, conveyor belt. Detailed Implementation

[0017] The technical solution of this application will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0018] The components of the embodiments of this application described and shown in the accompanying drawings can be arranged and designed in a variety of different configurations. Therefore, the following detailed description of the embodiments of this application provided in the drawings is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments of the application.

[0019] Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0020] In the description of this application, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0021] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0022] like Figure 1 and Figure 2 As shown, the present invention proposes a full-spectrum water quality detection sensor, including a body 1 and an optical system installed inside the body 1. When detecting water, the microprocessor sends a command to the light source driving circuit to trigger the light source to emit light, which can be a single pulse or a short continuous light. The light passes through the optical window 2 and through the water sample being tested. The transmitted light carries the absorption information of the water sample and passes through the optical window 2 on the other side. The transmitted light enters the spectrometer, such as a grating, and is dispersed into light of different wavelengths. The dispersed spectrum is projected onto the detector array. Each pixel on the detector array corresponds to a specific wavelength. The received light intensity is converted into a weak electrical signal, which can then be used to detect the water. This is existing technology and will not be described in detail here.

[0023] The device 1 has a notch 11 through which water passes and is detected by the optical system. It also includes optical windows 2 fixedly installed on the device 1 and located on both sides of the notch 11. Light passes through the two optical windows 2 in sequence. When there are deposits on the optical windows 2, it will affect their light transmittance and cause the detection value to drift. The device 1 is equipped with a sealing component 3 to seal the gap between the optical windows 2 and the device 1. The sealing component 3 includes a first sealing ring 31 fixedly installed in the device 1 and located on both ends of the optical windows 2, and a second sealing ring 32 fixedly installed on the device 1 and located on the side of the optical windows 2. The first sealing ring 31 and the second sealing ring 32 can prevent water from entering the inside of the device 1 through the gap between the optical windows 2 and the device 1, and can prevent the circuits and optical system inside the device 1 from being contaminated.

[0024] As one implementation method, such as Figure 2 and Figure 3As shown, the sensor in this embodiment also includes an isolation groove 4 disposed inside the body 1 and located on one side of the optical window 2. An isolation membrane 41 is installed in the isolation groove 4. The isolation membrane 41 separates the water from the optical window 2, preventing the optical window 2 from directly contacting each other. This avoids the presence of deposits on the optical window 2 and ensures its optical performance. However, the isolation membrane 41 can be contaminated. But the isolation membrane 41 can be rolled up, so a large number of isolation membranes 41 can be carried at once, and the isolation membranes 41 can be moved gradually, so that the uncontaminated isolation membranes 41 are continuously moved. The light transmittance above the optical window 2 is effectively guaranteed, thereby reducing maintenance costs and the interval between maintenance sessions. A sealing component 5 is installed in the isolation groove 4 to seal the gap between the isolation membrane 41 and the isolation groove 4. The sealing component 5 includes multiple sets of elastic cylindrical sealing strips 51 that are rotatably installed on the upper and lower sides of the isolation membrane 41. The sealing strips 51 can prevent water from entering the interior of the isolation membrane 41, ensuring that water does not enter between the isolation membrane 41 and the optical window 2, thereby ensuring that the optical window 2 is not contaminated by water.

[0025] It should be noted that the diameter of the sealing strip 51 is greater than the height of the isolation groove 4, and the length of the sealing strip 51 is greater than the width of the isolation groove 4. Therefore, the sealing strip 51 that enters the isolation groove 4 will be squeezed and deformed, and its diameter will be deformed, thus squeezing the isolation membrane 41 and the inner wall of the isolation groove 4, thereby sealing the gap between the isolation groove 4 and the isolation membrane 41, preventing external water from entering the isolation groove 4 and the body 1. The two ends of the sealing strip 51 will also contract axially, sealing both sides of the isolation groove 4. By setting multiple sets of sealing strips 51, a multi-level seal can be formed, effectively improving the sealing effect.

[0026] like Figures 3 to 7As shown, the sensor also includes a first winding rod 6 and a second winding rod 61 rotatably mounted inside the body 1 and fixedly connected to one end of the isolation membrane 41. A large number of isolation membranes 41 are wound on the second winding rod 61. By rotating the first winding rod 6, the isolation membranes 41 can be wound, pulling out the isolation membranes 41 on the second winding rod 61, thus continuously moving new isolation membranes above the optical window 2. The body 1 is equipped with a drive component 7 that drives the first winding rod 6 to rotate, and a transmission component 9 that drives multiple sealing strips 51 to rotate synchronously and is linked with the drive component 7. Because the sealing strips 51 and the isolation groove 4 have good sealing performance, the friction between the sealing strips 51 and the isolation groove 4 is relatively large. When the isolation membrane 41 moves, in order to reduce the friction between the sealing strips 51 and the isolation groove 4, the friction between the sealing strips 51 and the isolation groove 4 is relatively large. The magnitude of the resistance encountered by the 41 requires the rotation of the sealing strip 51. This ensures that the sealing performance is maintained while allowing the separation membrane 41 to move. The driving component includes a speed-changing mechanism that detects the thickness of the first winding rod 6 and changes its angular velocity. To keep the separation membrane 41 taut, the speed at which the sealing strip 51 drives the separation membrane 41 must match the speed at which the first winding rod 6 pulls the separation membrane 41. However, as the separation membrane 41 gradually wraps around the first winding rod 6, the thickness of the first winding rod 6 gradually increases. This results in a gradual increase in the stretching speed of the separation membrane 41 while the angular velocity of the first winding rod 6 remains constant. This can cause stretching deformation of the separation membrane 41. The speed-changing mechanism can prevent this problem from occurring. Furthermore, the drive component 7 also includes a motor 71 fixedly installed inside the body 1, a variable diameter pulley 72 fixedly installed on the output shaft of the first motor 71, and a first pulley 73 fixedly installed on the first winding rod 6. The variable diameter pulley 72 and the first pulley 73 are connected by a first transmission belt 74. A tensioning assembly for tensioning the first transmission belt 74 is installed inside the body 1. The motor 71 drives the variable diameter pulley 72 to rotate, and the rotating variable diameter pulley 72 will drive the first winding rod 6 to rotate through the transmission of the first transmission belt 74. The tensioning assembly is not shown in the figure. The tensioning assembly includes a spring and a tensioning wheel connected to the spring. The spring applies pressure to the tensioning wheel, so that the tensioning wheel presses on the first transmission belt 74, so that the first transmission belt 74 can remain taut when the variable diameter pulley 72 changes diameter. This is prior art and will not be described in detail here.

[0027] Furthermore, the variable diameter pulley 72 includes two connecting discs 721 fixedly mounted on the output shaft of the motor 71. Multiple support blocks 722 are slidably mounted between the two connecting discs 721. Connecting rods 723 are rotatably mounted on the support blocks 722. A pressure plate 724 slidably mounted inside the machine body 1 and rotatably connected to the multiple connecting rods 723 is provided on one of the connecting discs 721. The multiple support blocks 722 support the first transmission belt 74. When the pressure plate 724 is moved, it will drive the connecting rods 723 to rotate. The movement of the connecting rods 723 can drive the support blocks 722 to contract or expand. At this time, the circle formed by the multiple support blocks 722 will change, thereby changing the transmission ratio between the variable diameter pulley 72 and the first pulley 73. Thus, under the condition that the speed of the motor 71 is constant, the stretching speed of the first winding rod 6 on the isolation membrane 41 is always kept constant.

[0028] like Figure 6 and Figure 7 As shown, in this embodiment, the speed change mechanism includes a variable diameter pulley 72, a detection component 75 for the thickness of the first winding rod 6, and a linkage component 76 for driving the pressure plate 724 to move. By using the detection component 75 and the linkage component 76 together, the angular velocity of the first winding rod 6 can be changed according to the change in the thickness of the first winding rod 6.

[0029] Furthermore, the detection assembly includes a detection cylinder 751 fixedly installed inside the body 1. A first sealing block 752 is sealed and slidably installed inside the detection cylinder 751. A detection rod 753 is fixedly installed on the first sealing block 752. A rolling element 755 is rotatably installed on the detection rod 753 through a connecting seat 754. A first spring 756 is fixedly installed between the first sealing block 752 and the detection cylinder 751. When the thickness of the first winding rod 6 gradually increases, it will drive the detection rod 753 to move downward. The downward movement of the detection rod 753 will drive the first sealing block 752 to move downward.

[0030] Furthermore, the linkage component 76 includes a transmission cylinder 761 fixedly installed inside the machine body 1. A second sealing block 762 is slidably installed inside the transmission cylinder 761. A drive rod 763 fixedly connected to the pressure plate 724 is fixedly installed on the second sealing block 762. When the second sealing block 762 moves, it will drive the drive rod 763 to move, and the moving drive rod 763 can drive the pressure plate 724 to move.

[0031] It is worth noting that both ends of the transmission cylinder 761 are fixedly installed with conveying pipes 77, which correspond one-to-one with the two ends of the detection cylinder 751 and are fixedly connected and communicate with each other. The transmission cylinder 761, the detection cylinder 751 and the conveying pipes 77 are all filled with hydraulic medium. The hydraulic medium is a liquid that cannot be compressed under working conditions. When the first sealing block 752 moves down, the hydraulic medium inside the detection cylinder 751 will be input into the transmission cylinder 761 through the conveying pipes 77, thereby pushing the second sealing block 762 and the pressure plate 724 to move.

[0032] like Figures 3 to 7 As shown, in this embodiment, the transmission assembly 9 includes a second pulley 91 fixedly installed at one end of the sealing strip 51. A second transmission belt 92 is installed between two adjacent second pulleys 91. The output shaft of the motor 71 and one of the second pulleys 91 are linked by a conveyor belt 93. The second pulley 91 can be moved by the motor 71 through the conveyor belt 93, and multiple second pulleys 91 can be rotated by the transmission of the second transmission belt 92, so that multiple sealing strips 51 rotate with the rotation of the first winding rod 6.

[0033] like Figure 5 As shown, in this embodiment, a pressure-applying component 8 is installed at one end of the second winding rod 61 to apply constant pressure to the second winding rod 61. The pressure-applying component 8 includes multiple discs 81 fixedly installed on the second winding rod 61, and multiple protrusions 82 fixedly installed on the discs 81. A guide cylinder 83 corresponding to each disc 81 is fixedly installed inside the machine body 1. A pressure-applying rod 84 is slidably installed inside the guide cylinder 83. A second spring 85 is installed at a height between the pressure-applying rod 84 and the guide cylinder 83. In order to ensure that the isolation membrane 41 is always taut, a torsion spring needs to be set on the second winding rod 61. However, the second winding rod 61 needs to be wound many times in order to accommodate more isolation membranes 41, and the tension applied to the isolation membrane 41 by the torsion spring will also increase as the number of rotations increases. Therefore, it may apply a large tension to the isolation membrane 41, which may damage the isolation membrane.

[0034] The pressure-applying component 8 in this solution can prevent the above-mentioned problems from occurring. The second spring 85 drives the pressure-applying rod 84 to abut against the protrusion 82, thereby applying torque to the disc 81. As the protrusion 82 continues to rotate, it will pass the pressure-applying rod 84. At this time, the pressure-applying rod 84 will apply pressure to the next protrusion 82, thereby keeping the pressure on the second winding rod 61 within a certain reasonable range and preventing the second winding rod 61 from applying too much pressure to the isolation membrane 41.

[0035] In this embodiment, the sensor has optical windows 2 on both sides of the notch in the body, and a rollable and replaceable transparent isolation film 41 is added to the outside of the optical windows 2 to completely isolate the water from the optical windows 2. One end of the isolation film 41 is fixed to the second winding rod 61 to store unused film, and the other end is wound up by the first winding rod 6. When the driving component 7 drives the first winding rod 6 to rotate, the isolation film 41 moves continuously, so that the clean area always covers the optical windows 2. Multiple sets of elastic cylindrical sealing strips 51 are set in the isolation groove 4. Their diameter is larger than the height of the groove, and they are tightly pressed against the isolation through elastic deformation. The upper and lower surfaces of the membrane 41 form a multi-level seal to prevent water seepage. The detection component 75 is linked to the hydraulic system to drive the pressure plate 724 to adjust the expansion degree of the support block 722 of the variable diameter pulley 72, so that the transmission ratio automatically decreases as the winding thickness increases, ensuring that the linear speed of the membrane 41 is constant. The pressure application component 8 pushes the pressure application rod 84 against the protrusion 82 of the second winding rod 61 through the second spring 85, providing constant torque to prevent the membrane material from being too tight or loose. At the same time, the transmission component 9 drives all the sealing strips 51 to rotate synchronously, reducing the resistance to membrane material movement while maintaining the sealing state.

[0036] The above specific embodiments are merely several optional embodiments of the present invention. Based on the technical solutions of the present invention and the relevant teachings of the above embodiments, those skilled in the art can make various alternative improvements and combinations to the above specific embodiments.

Claims

1. A full-spectrum water quality detection sensor, comprising a body (1) and an optical system installed inside the body (1), wherein the body (1) has a notch (11), characterized in that, Also includes: Optical windows (2) are fixedly installed on the body (1) and located on both sides of the notch (11); An isolation groove (4) is provided inside the body (1) and located on one side of the optical window (2). An isolation membrane (41) is installed in the isolation groove (4). A sealing member (5) is installed in the isolation groove (4) to seal the gap between the isolation membrane (41) and the isolation groove (4). The sealing member (5) includes multiple sets of elastic cylindrical sealing strips (51) that are rotatably installed on the upper and lower sides of the isolation membrane (41). The first winding rod (6) and the second winding rod (61) are rotatably installed inside the body (1) and fixedly connected to one end of the isolation membrane (41). The body (1) is equipped with a drive component (7) that drives the first winding rod (6) to rotate, and a transmission component (9) that drives multiple sealing strips (51) to rotate synchronously and is linked with the drive component (7). The drive component includes a speed change mechanism that detects the thickness of the first winding rod (6) and changes the angular velocity of the first winding rod (6).

2. The full-spectrum water quality detection sensor according to claim 1, characterized in that, The drive component (7) further includes a motor (71) fixedly installed inside the body (1), a variable diameter pulley (72) fixedly installed on the output shaft of the first motor (71), and a first pulley (73) fixedly installed on the first winding rod (6). The variable diameter pulley (72) and the first pulley (73) are connected by a first transmission belt (74). A tensioning assembly for tensioning the first transmission belt (74) is installed inside the body (1).

3. The full-spectrum water quality detection sensor according to claim 2, characterized in that, The variable diameter pulley (72) includes two connecting discs (721) fixedly mounted on the output shaft of the motor (71). Multiple support blocks (722) are slidably mounted between the two connecting discs (721). A connecting rod (723) is rotatably mounted on the support block (722). A pressure plate (724) rotatably connected to the multiple connecting rods (723) is slidably mounted inside the machine body (1). One of the connecting discs (721) is provided with a through hole (725).

4. The full-spectrum water quality detection sensor according to claim 3, characterized in that, The speed change mechanism includes the variable diameter pulley (72), a detection component (75) for the thickness of the first winding rod (6), and a linkage component (76) for driving the pressure plate (724) to move.

5. A full-spectrum water quality detection sensor according to claim 4, characterized in that, The detection assembly includes a detection cylinder (751) fixedly installed inside the body (1). A first sealing block (752) is sealed and slidably installed inside the detection cylinder (751). A detection rod (753) is fixedly installed on the first sealing block (752). A rolling element (755) is rotatably installed on the detection rod (753) through a connecting seat (754). A first spring (756) is fixedly installed between the first sealing block (752) and the detection cylinder (751).

6. The full-spectrum water quality detection sensor according to claim 5, characterized in that, The linkage component (76) includes a transmission cylinder (761) fixedly installed inside the body (1), a second sealing block (762) is slidably installed inside the transmission cylinder (761), and a drive rod (763) fixedly connected to the pressure plate (724) is fixedly installed on the second sealing block (762).

7. A full-spectrum water quality detection sensor according to claim 6, characterized in that, Both ends of the transmission cylinder (761) are fixedly installed with conveying pipes (77). The conveying pipes (77) correspond one-to-one with the two ends of the detection cylinder (751) and are fixedly connected and communicate with each other. The transmission cylinder (761), the detection cylinder (751) and the conveying pipes (77) are all filled with hydraulic medium.

8. A full-spectrum water quality detection sensor according to claim 7, characterized in that, The transmission assembly (9) includes a second pulley (91) fixedly installed at one end of the sealing strip (51), and a second transmission belt (92) is installed between two adjacent second pulleys (91). The output shaft of the motor (71) and one of the second pulleys (91) are linked by a conveyor belt (93).

9. A full-spectrum water quality detection sensor according to claim 8, characterized in that, One end of the second winding rod (61) is equipped with a pressure-applying component (8) that applies constant pressure to the second winding rod (61). The pressure-applying component (8) includes a plurality of discs (81) fixedly installed on the second winding rod (61). A plurality of protrusions (82) are fixedly installed on the discs (81). A guide cylinder (83) corresponding to the discs (81) is fixedly installed inside the body (1). A pressure rod (84) is slidably installed inside the guide cylinder (83). A second spring (85) is installed at a height between the pressure rod (84) and the guide cylinder (83).

10. A full-spectrum water quality detection sensor according to claim 9, characterized in that, The body (1) is equipped with a sealing component (3) for sealing the gap between the optical window (2) and the body (1). The sealing component (3) includes a first sealing ring (31) fixedly installed inside the body (1) and located on both ends of the optical window (2), and a second sealing ring (32) fixedly installed on the body (1) and located on the side of the optical window (2).

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