A sewage detection device

Abstract

This application relates to the field of wastewater detection technology, and more specifically to a wastewater detection device, comprising: an outer cylinder, a fixed cylinder, a baffle, a valve core, and an elastic element. During detection, the outer cylinder rotates relative to the fixed cylinder, allowing selective flow through the first and second inlets, enabling quantitative inflow of external wastewater into the detection chamber for detection. During cleaning, when clean water is poured into the detection chamber, the rotation of the outer cylinder drives the stirring ribs to rotate circumferentially, agitating the water within the detection chamber and cleaning the sensor and the inner wall of the detection chamber. Detection modules of varying lengths are provided to simultaneously measure wastewater at different depths. By incorporating the baffle, valve core, and elastic element, the detection chamber has a large flow area with the outside environment during stationary and low-speed operation. During high-speed cleaning, the detection chamber is closed to allow the stirring ribs to agitate the water inside. During medium-speed cleaning, a small, intermittent flow of water mixed with particulate matter is released to achieve thorough cleaning.

Description

Technical Field

[0001] This application relates to the field of wastewater detection technology, and more specifically to a wastewater detection device. Background Technology

[0002] Wastewater testing devices refer to instruments, equipment, or systems used for qualitative or quantitative analysis of various physical, chemical, and biological pollution parameters in wastewater.

[0003] Patent document (CN121185881A) discloses a wastewater detection device, including a measuring cylinder, a blocking base, and a displacement plate. When the blocking base and displacement plate are arranged in a staggered manner, external wastewater can flow into the measuring cylinder and be detected by a sensor installed inside. By adjusting the relative positions of the blocking base and displacement plate, excess wastewater in the measuring cylinder can be discharged, achieving quantitative detection of wastewater within the measuring cylinder. However, since the sensor is located inside the measuring cylinder, it is not easy to thoroughly clean the sensor and the inner wall of the measuring cylinder after wastewater detection. Additionally, patent document (CN120971098A) discloses a wastewater detection device including multiple sampling rods of varying lengths to facilitate rapid acquisition and detection of water samples at different depths within the same water body, improving detection efficiency. However, when the number of sampling rods increases, the post-detection cleaning problem becomes more prominent. How to conveniently clean multiple sampling rods is a technical problem that those skilled in the art need to solve.

[0004] Therefore, there is a need for a wastewater detection device that can clean more thoroughly and simultaneously clean multiple sensors. Summary of the Invention

[0005] The main objective of this application is to provide a wastewater detection device, comprising a base, multiple detection modules, a rotary drive device, and a controller. Each detection module is rotatably mounted on the base. Each detection module includes an outer cylinder, a fixed cylinder, a sensor assembly, and a mounting base. One end of the fixed cylinder is fixedly connected to the base. The outer cylinder is rotatably fitted onto the outside of the fixed cylinder. The mounting base is located below the fixed cylinder and spaced at a predetermined distance. The mounting base has an extension. The outer cylinder has a first inlet and a through hole with an opening. The extension has a second inlet. The mounting base is fixedly connected to the fixed cylinder and closes one end opening of the through hole. The extension is located inside the outer cylinder and fits against the inner wall of the outer cylinder. The end of the fixed cylinder, the through hole, and the mounting base together form a detection cavity. The sensor assembly is fixedly mounted on the fixed cylinder. The upper part extends into the detection chamber. The end of the through hole near the fixed base also has a stirring rib. The rotary drive device is poweredly connected to the end of each outer cylinder away from the fixed base. The first inlet of at least two detection modules is spaced a predetermined distance apart in the height direction of the base. The sensor assembly includes a detection sensor and a liquid level sensor for detecting sewage. The rotary drive device, the detection sensor, and the liquid level sensor are all electrically connected to the controller. During detection, the outer cylinder rotates relative to the fixed cylinder, allowing selective flow between the first and second inlets, so that external sewage flows into the detection chamber quantitatively and is detected. During cleaning, when clean water is poured into the detection chamber, the rotation of the outer cylinder drives the stirring rib to rotate circumferentially and stirs the clean water in the detection chamber, cleaning the sensor and the inner wall of the detection chamber. By setting detection modules of different lengths, sewage at different depths can be measured simultaneously.

[0006] Another objective of this application is to provide a wastewater detection device, wherein each detection module further includes a first stop, a second stop, a first elastic element, and a valve core. The first stop and the second stop are fixedly installed at both ends of the first inlet. The first stop has a first flow hole, and the second stop has a conical hole, a cylindrical hole, and a drain plate portion. The two ends of the first elastic element are respectively connected to the first stop and the valve core. The valve core is located between the first stop and the second stop, and the valve core has a third flow hole. The drain plate portion is located at the cylindrical hole. Inside, the drain plate has a second flow hole and a baffle. The baffle is directly opposite the third flow hole. When the first elastic element is in an undeformed state, the valve core is spaced a predetermined distance from the wall of the conical hole, and the baffle is spaced a predetermined distance from the third flow hole. This allows for a large flow area between the detection chamber and the outside during static and low-speed operation. During high-speed cleaning, the detection chamber is closed to allow the clean water inside to be stirred by the stirring ribs. During medium-speed cleaning, a small amount of clean water mixed with particulate matter flows out intermittently to thoroughly clean the sensor and the inner wall of the detection chamber.

[0007] To achieve at least one of the above-mentioned objectives, this application provides a wastewater detection device, wherein the wastewater detection device includes: The system comprises a base, multiple detection modules, a rotary drive device, and a controller. Each detection module is rotatably mounted on the base. Each detection module includes an outer cylinder, a fixed cylinder, a sensor assembly, and a mounting base. One end of the fixed cylinder is fixedly connected to the base. The outer cylinder is rotatably fitted onto the outside of the fixed cylinder. The mounting base is located below the fixed cylinder and spaced at a predetermined distance. The mounting base has an extension. The outer cylinder has a first inlet and a through hole with an opening. The extension has a second inlet. The mounting base is fixedly connected to the fixed cylinder and closes one end opening of the through hole. The extension is located inside the outer cylinder. The sensor assembly is fixedly mounted on the inner wall of the outer cylinder and extends into the detection cavity. The end of the fixed cylinder, the through hole, and the fixed seat together form a detection cavity. The sensor assembly is fixedly mounted on the fixed cylinder and extends into the detection cavity. The end of the through hole near the fixed seat also has a stirring rib. The rotary drive device is poweredly connected to the end of each outer cylinder away from the fixed seat. The first inlet of at least two detection modules is spaced a predetermined distance apart in the height direction of the base. The sensor assembly includes a detection sensor and a liquid level sensor for detecting wastewater. The rotary drive device, the detection sensor, and the liquid level sensor are all electrically connected to the controller.

[0008] In one or more embodiments of this application, each detection module further includes a first stop, a second stop, a first elastic member, and a valve core. The first stop and the second stop are fixedly installed at both ends of the first inlet. The first stop has a first flow hole, and the second stop has a conical hole, a cylindrical hole, and a drain plate portion. The two ends of the first elastic member are respectively connected to the first stop and the valve core. The valve core is located between the first stop and the second stop and has a third flow hole. The drain plate portion is located in the cylindrical hole and has a second flow hole and a stop post on the drain plate portion. The stop post is directly opposite the third flow hole. When the first elastic member is in an undeformed state, the valve core is spaced apart from the wall of the conical hole by a predetermined distance, and the stop post is spaced apart from the third flow hole by a predetermined distance.

[0009] In one or more embodiments of this application, each of the detection modules further includes a sleeve, a second elastic element, a water supply pipe, and a cap. The fixed cylinder has a receiving cavity. The sleeve is sleeved on the detection sensor and fixedly connected to the fixed cylinder. One end of the sleeve extends into the detection cavity, and the other end of the sleeve extends into the receiving cavity. One end of the water supply pipe is placed in the receiving cavity and communicates with the sleeve. The other end of the water supply pipe extends out of the receiving cavity and is sealed by a sealing plug. The sleeve has a water passage cavity. The two ends of the second elastic element are fixedly connected to the cap and the sleeve, respectively. The cap closes the opening of the water passage cavity near the detection cavity.

[0010] In one or more embodiments of this application, a floating element is further sleeved on the detection sensor.

[0011] In one or more embodiments of this application, each of the detection modules further includes a connecting rod, and the wastewater detection device further includes a fixing cover. The two ends of the connecting rod are respectively fixedly connected to the fixing base and the fixing cylinder. The fixing cover covers each of the detection modules and is fixedly connected to the base.

[0012] In one or more embodiments of this application, a first gear is mounted on the rotating shaft of the rotary drive device, each detection module is located outside the rotary drive device and arranged in a circular array, and a second gear is fixedly mounted on the outer cylinder of each detection module, with the first gear meshing with each of the second gears.

[0013] In one or more embodiments of this application, the fixing cover has a lifting hole.

[0014] In one or more embodiments of this application, the number of detection modules is six, and the six detection modules are two first detection groups, two second detection groups and two third detection groups, the overall length of the first detection group, the second detection group and the third detection group increases sequentially, and the six detection modules are arranged in a ring array.

[0015] In this embodiment, firstly, during detection, the outer cylinder rotates relative to the fixed cylinder, allowing selective flow through the first and second inlets, enabling quantitative inflow of external sewage into the detection chamber for detection. Secondly, during cleaning, when clean water is poured into the detection chamber, the rotation of the outer cylinder drives the stirring ribs to rotate circumferentially, agitating the clean water inside the detection chamber and cleaning the sensor and the inner wall of the detection chamber. Thirdly, detection modules of varying lengths are used to simultaneously measure sewage at different depths. Fourthly, by setting baffles, valve cores, and elastic elements, the detection chamber has a large flow area with the outside during static and low-speed operation. During high-speed cleaning, the detection chamber is closed to allow the clean water inside to be agitated by the stirring ribs. During medium-speed cleaning, a small amount of clean water mixed with particulate matter flows out intermittently to thoroughly clean the sensor and the inner wall of the detection chamber. Attached Figure Description

[0016] These and / or other aspects and advantages of this application will become clearer and more readily understood from the following detailed description of embodiments of this application taken in conjunction with the accompanying drawings, wherein: Figure 1 The figure shows a structural schematic diagram of a wastewater detection device according to this application from a certain perspective; Figure 2 The diagram shows... Figure 1 A magnified view of a portion at point C; Figure 3 The diagram shows... Figure 2 A magnified view of a portion at point D; Figure 4 The diagram shows... Figure 2 A magnified view of a portion at point E; Figure 5 The illustration shows a schematic diagram of a wastewater detection device from another perspective. Detailed Implementation

[0017] The terms and words used in the following specification and claims are not limited to their literal meaning, but are used solely by the inventors to enable a clear and consistent understanding of this application. Therefore, it will be apparent to those skilled in the art that the following description of various embodiments of this application is provided for illustrative purposes only and not for the purpose of limiting the application as defined in the appended claims and their equivalents.

[0018] It is understood that the term "a" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of an element can be one, while in another embodiment, the number of the element can be multiple, and the term "a" should not be understood as a limitation on the number.

[0019] While ordinal numbers such as "first," "second," etc., will be used to describe various components, this does not limit which components are used. The term is used only to distinguish one component from another. For example, a first component may be referred to as a second component, and similarly, a second component may be referred to as a first component, without departing from the teachings of the inventive concept. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0020] The terminology used herein is for the purpose of describing various embodiments only and is not intended to be limiting. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. It will also be understood that the terms “comprising” and / or “having” as used in this specification specify the presence of the described features, numbers, steps, operations, components, elements or combinations thereof, without excluding the presence or addition of one or more other features, numbers, steps, operations, components, elements or groups thereof.

[0021] Indicative wastewater detection device, for reference Figures 1 to 5 According to a preferred embodiment of the present invention, a wastewater detection device includes a base 10, a plurality of detection modules 20, a rotary drive device 30, and a controller.

[0022] Specifically, such as Figures 1 to 4As shown, each detection module 20 is rotatably mounted on the base 10. Each detection module 20 includes an outer cylinder 201, a fixed cylinder 202, a sensor assembly, and a fixing seat 203. One end of the fixed cylinder 202 is fixedly connected to the base 10. The outer cylinder 201 is rotatably sleeved on the outside of the fixed cylinder 202. The fixing seat 203 is located below the fixed cylinder 202 and spaced at a predetermined distance. The fixing seat 203 has an extension 2031. The outer cylinder 201 has a first inlet 2011 and a through hole 2012 with an opening. The extension 2031 has a second inlet 2032. The fixing seat 203 is fixedly connected to the fixed cylinder 202 and closes one end opening of the through hole 2012. The extension 2031 is located inside the outer cylinder 201 and closes to the outer cylinder. The inner wall of the fixed cylinder 201 is fitted together. The end of the fixed cylinder 202, the through hole 2012 and the fixed seat 203 together form the detection cavity 2013. The sensor assembly is fixedly installed on the fixed cylinder 202 and extends into the detection cavity 2013. The end of the through hole 2012 near the fixed seat 203 also has a stirring rib 2014. The rotary drive device 30 is poweredly connected to the end of each outer cylinder 201 away from the fixed seat 203. The first inlet 2011 of at least two detection modules 20 is spaced apart by a predetermined distance in the height direction of the base 10. The sensor assembly includes a detection sensor 2041 and a liquid level sensor 2042 for detecting sewage. The rotary drive device 30, the detection sensor 2041 and the liquid level sensor 2042 are all electrically connected to the controller.

[0023] It should be noted that the rotary drive device 30 is preferably a rotary motor with an IP68 waterproof rating. When the rotating shaft of the rotary drive device 30 rotates circumferentially, the outer cylinder 201 rotates circumferentially relative to the base 10 and the fixed cylinder 202. When the outer cylinder 201 rotates a predetermined angle, the first inlet 2011 and the second inlet 2032 are connected or staggered. When the first inlet 2011 and the second inlet 2032 are connected, the detection chamber 2013 is connected to the outside. In addition, by setting the outer cylinder 201 and the fixed cylinder 202 to enclose the sensor assembly, the risk of the sensor assembly being exposed to large hard objects during transportation and in sewage is effectively avoided. Furthermore, during detection, the first inlet 2011 and the second inlet 2032 are connected, and the sewage detection device is inserted into the sewage at a predetermined depth, so that the sewage flows into the detection chamber 201 of each detection module 20. Within 3, when the sewage flows into the detection chamber 2013 and reaches a predetermined volume, the liquid level sensor 2042 sends an analog or digital signal, which, through the controller, powers the rotary drive device 30, causing the shaft of the rotary drive device 30 to rotate circumferentially. The outer cylinder 201 then rotates by a predetermined angle, causing the first inlet 2011 and the second inlet 2032 to be misaligned. At this point, the wall of the through hole 2012 seals the detection chamber 2013, making it difficult for external sewage to flow into the detection chamber 2013, thus achieving quantitative intake of external sewage. This is then detected by the detection sensor 2041, which includes, but is not limited to, a pH sensor or a turbidity sensor. It should be noted that by setting detection modules 20 of different lengths, when the sewage detection device is placed in sewage, it is possible to simultaneously perform quantitative detection of water samples at different depths of the sewage to be tested.Additionally, it should be noted that after the wastewater is detected, the inner walls of the detection sensor 2041 and the detection chamber 2013 need to be cleaned. In this application, after an external clean water source enters the detection chamber 2013, the first inlet 2011 and the second inlet 2032 are staggered and merged to close the detection chamber 2013. Subsequently, the rotating shaft of the rotary drive device 30 is activated, causing the outer cylinder 201 to rotate circumferentially, which in turn drives the stirring ribs 2014 on the outer cylinder 201 to rotate circumferentially. The clean water source in cavity 2013 is agitated by the stirring rib 2014, causing particles adhering to the detection sensor 2041 and the detection cavity 2013 to move with the clean water source. Then, by rotating the outer cylinder 201 and connecting the first inlet 2011 and the second inlet 2032, the clean water source containing particles is discharged, thus cleaning the detection sensor 2041 and the inner wall of the detection cavity 2013. It is evident that, compared to existing technologies, this application has the advantages of more thorough cleaning and the ability to clean multiple sensors simultaneously.

[0024] Furthermore, to achieve wastewater detection, the flow area at the first inlet 2011 and the second inlet 2032 is maximized to facilitate wastewater flow into the detection chamber 2013. During cleaning, especially as the outer cylinder 201 rotates at high speed, agitating the particles on the detection sensor 2041 and the detection chamber 2013, the first inlet 2011 and the second inlet 2032 remain closed. This ensures that a predetermined amount of clean water is continuously agitated within the detection chamber 2013. After a predetermined agitation time, the clean water that has scraped off the particles is slowly discharged. Figure 3As shown, each detection module 20 further includes a first stop 401, a second stop 402, a first elastic member 403, and a valve core 404. The first stop 401 and the second stop 402 are fixedly installed at both ends of the first inlet 2011. The first stop 401 has a first flow hole 4011, and the second stop 402 has a tapered hole 4021, a cylindrical hole 4022, and a drain plate portion 4023. The two ends of the first elastic member 403 are respectively connected to the first stop 401 and the valve core 404. The valve core 404 is located at the first inlet 2011. Between the first stop 401 and the second stop 402, the valve core 404 has a third flow hole 4041, the drain plate portion 4023 is located inside the column hole 4022, the drain plate portion 4023 has a second flow hole 40231 and a stop post 40232, the stop post 40232 is directly opposite the third flow hole 4041, when the first elastic member 403 is in an undeformed state, the valve core 404 is spaced apart from the hole wall of the tapered hole 4021 by a predetermined distance, and the stop post 40232 is spaced apart from the third flow hole 4041 by a predetermined distance.

[0025] It should be noted that when the wastewater detection device is placed into the wastewater, with the first inlet 2011 and the second inlet 2032 facing each other, the first elastic element 403 is in an undeformed state. At this time, the wastewater can pass through the column hole 4022 and the second flow hole 40231, and flow along the channel between the valve core 404 and the cone hole 4021, as well as the third flow hole 4041, towards the first baffle 401. After passing through the first flow hole 4011, the wastewater flows out from the second inlet 2032. 2. Water flows into the detection chamber 2013; during cleaning, first inject clean water into the detection chamber 2013, then rotate the outer cylinder 201 at high speed. When the outer cylinder 201 rotates at high speed, the valve core 404 is subjected to centrifugal force and moves towards the cone hole 4021 and closer to the cylindrical hole 4022, stretching the first elastic element 403. Under the continuous circumferential rotation of the outer cylinder 201, the valve core 404 abuts against the cone hole 4021 and seals the cone hole 4021 and the cylindrical hole. At the connection point of 4022, during cleaning, the clean water placed in the detection chamber 2013 is constantly agitated within the detection chamber 2013 without leaking out, so as to maximize the removal of particles adhering to the detection sensor 2041 and the inner wall of the detection chamber 2013, which then flow with the clean water. After the outer cylinder 201 moves at high speed for a certain period of time, the rotation speed of the outer cylinder 201 is reduced. Then, the centrifugal force of the valve core 404 cannot completely overcome the elastic force of the first elastic element 403 and abut against the wall of the conical hole 4021. However, at this time, the column hole 4022 closes the third flow hole 4041. Therefore, with each rotation of the outer cylinder 201, a portion of the water containing particles in the detection chamber 2013 flows along the first flow hole 4011, through the channel between the valve core 404 and the cone hole 4021, and out through the second flow hole 40231. Compared to when the outer cylinder 201 is moving slowly or stationary, the detection chamber 2013 experiences intermittent, small-flow-rate circulation with the outside, facilitating the removal of water containing particles. It is evident that in this application, one function of the outer cylinder 201 is to selectively close the detection chamber 2013; another function is to close the detection chamber 2013 at high speed and agitate the water within it during cleaning, and to intermittently open the detection chamber 2013 and discharge water at medium speed.

[0026] Furthermore, such as Figure 4As shown, each of the detection modules 20 further includes a sleeve 501, a second elastic element 502, a water supply pipe 503, and a cap 504. The fixed cylinder 202 has a receiving cavity 2021. The sleeve 501 is sleeved on the detection sensor 2041 and fixedly connected to the fixed cylinder 202. One end of the sleeve 501 extends into the detection cavity 2013, and the other end of the sleeve 501 extends into the receiving cavity 2021. One end of the water supply pipe 503 is placed in the receiving cavity 2021 and communicates with the sleeve 501. The other end of the water supply pipe 503 extends out of the receiving cavity 2021 and is sealed by a sealing plug. The sleeve 501 has a water passage cavity. The two ends of the second elastic element 502 are fixedly connected to the cap 504 and the sleeve 501, respectively. The cap 504 closes the opening of the water passage cavity near the detection cavity 2013.

[0027] It should be noted that when cleaning the detection chamber 2013, the sealing plug on the water supply pipe 503 is opened and clean water is sent into the water supply pipe 503. The clean water then exerts a force on the cover 504 and drives the cover 504. The clean water then flows from the water passage into the detection chamber 2013. It should be pointed out that at this time, the first inlet 2011 and the second inlet 2032 are arranged in a staggered manner. After injecting a predetermined height of clean water into the detection chamber 2013, the outer cylinder 201 is rotated at high speed.

[0028] Furthermore, to prevent unrestricted water from flowing into the detection chamber 2013 after the level sensor 2042 fails, such as... Figure 4 As shown, a floating element 2043 is also fitted onto the detection sensor 2041. When the water in the detection chamber 2013 reaches a predetermined height, the floating element 2043 floats up and provides a vertically upward force to the cover 504. Combined with the elastic force of the second elastic element 502, this makes it difficult for external water to flow into the detection chamber 2013.

[0029] Furthermore, such as Figure 1 and Figure 4 As shown, each of the detection modules 20 further includes a connecting rod 205, and the wastewater detection device further includes a fixing cover 60. The two ends of the connecting rod 205 are respectively fixedly connected to the fixing base 203 and the fixing cylinder 202. The fixing cover 60 covers each of the detection modules 20 and is fixedly connected to the base 10.

[0030] Furthermore, such as Figure 5As shown, a first gear 301 is mounted on the rotating shaft of the rotary drive device 30. Each detection module 20 is located outside the rotary drive device 30 and arranged in a circular array. A second gear is fixedly mounted on the outer cylinder 201 of each detection module 20. The first gear 301 meshes with each of the second gears.

[0031] It should be noted that when the first gear 301 rotates circumferentially, each of the outer cylinders 201 also rotates circumferentially.

[0032] Furthermore, such as Figure 1 As shown, the fixed cover 60 has a lifting hole 601, which is used to tie the lifting hole 601 with a rope and immerse the sewage detection device into the sewage to a predetermined depth.

[0033] Furthermore, in one embodiment of this application, to achieve overall balance of the wastewater detection device during hoisting, such as... Figure 5 As shown, there are six detection modules 20, and the six detection modules 20 are two first detection groups 206, two second detection groups 207, and two third detection groups 208. The overall length of the first detection group 206, the second detection group 207, and the third detection group 208 increases sequentially. The six detection modules 20 are arranged in a circular array, and the two first detection groups 206 are arranged symmetrically, the two second detection groups 207 are arranged symmetrically, and the two third detection groups 208 are arranged symmetrically.

[0034] In summary, the wastewater detection device based on the embodiments of this application is explained, which provides advantages such as more thorough cleaning and the ability to clean multiple sensors simultaneously.

[0035] Those skilled in the art should understand that the embodiments of the present invention described above and shown in the accompanying drawings are merely examples and do not limit the present invention. The objectives of the present invention have been fully and effectively achieved. The functional and structural principles of the present invention have been demonstrated and explained in the embodiments, and any modifications or variations of the embodiments of the present invention may be made without departing from these principles.

Claims

1. A wastewater detection device, characterized in that: The wastewater detection device includes The system comprises a base, multiple detection modules, a rotary drive device, and a controller. Each detection module is rotatably mounted on the base. Each detection module includes an outer cylinder, a fixed cylinder, a sensor assembly, and a mounting base. One end of the fixed cylinder is fixedly connected to the base. The outer cylinder is rotatably fitted onto the outside of the fixed cylinder. The mounting base is located below the fixed cylinder and spaced at a predetermined distance. The mounting base has an extension. The outer cylinder has a first inlet and a through hole with an opening. The extension has a second inlet. The mounting base is fixedly connected to the fixed cylinder and closes one end opening of the through hole. The extension is located inside the outer cylinder. The sensor assembly is fixedly mounted on the inner wall of the outer cylinder and extends into the detection cavity. The end of the fixed cylinder, the through hole, and the fixed seat together form a detection cavity. The sensor assembly is fixedly mounted on the fixed cylinder and extends into the detection cavity. The end of the through hole near the fixed seat also has a stirring rib. The rotary drive device is poweredly connected to the end of each outer cylinder away from the fixed seat. The first inlet of at least two detection modules is spaced a predetermined distance apart in the height direction of the base. The sensor assembly includes a detection sensor and a liquid level sensor for detecting wastewater. The rotary drive device, the detection sensor, and the liquid level sensor are all electrically connected to the controller.

2. The wastewater detection device according to claim 1, characterized in that: Each of the detection modules further includes a first stop, a second stop, a first elastic element, and a valve core. The first stop and the second stop are fixedly installed at both ends of the first inlet. The first stop has a first flow hole, and the second stop has a conical hole, a cylindrical hole, and a drain plate. The two ends of the first elastic element are respectively connected to the first stop and the valve core. The valve core is located between the first stop and the second stop and has a third flow hole. The drain plate is located inside the cylindrical hole and has a second flow hole and a stop post on the drain plate. The stop post is directly opposite the third flow hole. When the first elastic element is in an undeformed state, the valve core is spaced apart from the wall of the conical hole by a predetermined distance, and the stop post is spaced apart from the third flow hole by a predetermined distance.

3. The wastewater detection device according to claim 2, characterized in that: Each of the aforementioned detection modules further includes a sleeve, a second elastic element, a water supply pipe, and a cap. The fixed cylinder has a receiving cavity. The sleeve is sleeved on the detection sensor and fixedly connected to the fixed cylinder. One end of the sleeve extends into the detection cavity, and the other end of the sleeve extends into the receiving cavity. One end of the water supply pipe is placed in the receiving cavity and communicates with the sleeve. The other end of the water supply pipe extends out of the receiving cavity and is sealed by a sealing plug. The sleeve has a water passage cavity. Both ends of the second elastic element are fixedly connected to the cap and the sleeve, respectively. The cap seals the opening of the water passage cavity near the detection cavity.

4. The wastewater detection device according to claim 3, characterized in that: A floating component is also fitted onto the detection sensor.

5. The wastewater detection device according to claim 4, characterized in that: Each of the detection modules further includes a connecting rod, and the wastewater detection device further includes a fixing cover. The two ends of the connecting rod are respectively fixedly connected to the fixing base and the fixing cylinder. The fixing cover covers each of the detection modules and is fixedly connected to the base.

6. The wastewater detection device according to claim 5, characterized in that: A first gear is mounted on the shaft of the rotary drive device. Each detection module is located outside the rotary drive device and arranged in a circular array. A second gear is fixedly mounted on the outer cylinder of each detection module. The first gear meshes with each of the second gears.

7. The wastewater detection device according to claim 6, characterized in that: The mounting cover has lifting holes.

8. The wastewater detection device according to claim 7, characterized in that: The number of detection modules is six, and the six detection modules are two first detection groups, two second detection groups, and two third detection groups. The overall length of the first detection group, the second detection group, and the third detection group increases sequentially, and the six detection modules are arranged in a ring array.

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