Wastewater testing apparatus and cleaning device

Abstract

A wastewater testing apparatus and a cleaning device. The wastewater testing apparatus comprises: a housing (100) provided therein with an accommodating cavity, wherein the housing (100) is provided thereon with a water inlet (111), a water outlet (112), and a wire hole (113) which are communicated with the accommodating cavity; a testing tube (200) arranged in the accommodating cavity, wherein two ends of the testing tube (200) are respectively communicated with the water inlet (111) and the water outlet (112); and a testing assembly (300) arranged in the accommodating cavity, wherein the testing assembly (300) comprises a transmitter (310), a receiver (320), a circuit board (330) connected to the transmitter (310) and the receiver (320), and a wire harness connected to the circuit board (330), the transmitter (310) and the receiver (320) are arranged opposite to each other on two sides of the testing tube (200), and the wire harness extends to the outside of the housing (100) by means of the wire hole (113).

Description

Sewage detection devices and cleaning equipment

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This disclosure claims priority to Chinese patent application No. 202322312599X filed on August 25, 2023, which is incorporated herein by reference in its entirety. Technical Field

[0003] The present disclosure belongs to the technical field of cleaning equipment, and in particular relates to a sewage detection device and cleaning equipment. Background Art

[0004] Cleaning equipment generates sewage during cleaning, and the degree of dirtiness of the sewage can be detected to judge the cleaning effect. In the related art, the arrangement of sewage detection devices in cleaning equipment is relatively complicated, and the application in cleaning equipment is very inconvenient.

[0005] It should be noted that the information disclosed in the above background technology section is only used to enhance the understanding of the background of the present disclosure, and therefore may include information that does not constitute prior art known to ordinary technicians in the field.

[0006] Summary of the Invention

[0007] The present disclosure aims to at least to some extent solve the technical problem that the conventional sewage detection device is relatively complicated to set up in the cleaning equipment. To this end, the present disclosure provides a sewage detection device and a cleaning equipment.

[0008] According to one aspect of an embodiment of the present disclosure, a sewage detection device is provided, the sewage detection device comprising:

[0009] A housing is provided with a receiving cavity therein, and a water inlet, a water outlet, and a wire hole communicating with the receiving cavity are provided on the housing;

[0010] a detection tube, the detection tube being disposed in the accommodating cavity, with both ends of the detection tube being connected to the water inlet and the water outlet respectively; and

[0011] A detection component is arranged in the accommodating cavity, and the detection component includes a transmitter, a receiver, a circuit board connected to the transmitter and the receiver, and a wiring harness connected to the circuit board. The transmitter and the receiver are relatively arranged on both sides of the detection tube, and the wiring harness extends to the outside of the shell through the wire hole.

[0012] In some embodiments, the detection component is a light detection component, and at least two opposite sides of the detection tube are provided with light-transmitting surfaces, and the emitter and the receiver correspond to the light-transmitting surfaces.

[0013] In some embodiments, at least the light-transmitting surface of the detection tube is perpendicular to the detection light emitted by the light detection component.

[0014] In some embodiments, the detection tube is made of light-transmitting material.

[0015] In some embodiments, the shell and the detection tube are double-shot injection molded, the shell is made of a light-shielding injection molding material, and the detection tube is made of a light-transmitting injection molding material; or, the shell includes a shell body and a light-shielding layer arranged on the shell body, the shell body and the detection tube are integrally injection molded, and the shell body and the detection tube are made of a light-transmitting injection molding material.

[0016] In some embodiments, the water inlet is provided with a water inlet joint, and the water outlet is provided with a water outlet joint.

[0017] In some embodiments, a connecting portion is provided on the outer side of the housing, and the connecting portion is used to connect to a cleaning device.

[0018] In some embodiments, the housing includes a first shell and a second shell, and the second shell is snapped onto the first shell to enclose and form the accommodating cavity.

[0019] In some embodiments, the wire hole is provided with a sealing rubber sleeve; and a sealing gasket or a sealing ring is provided on the side of the second shell facing the first shell.

[0020] In some embodiments, a fixing portion and / or a positioning portion is provided on the inner side of the housing, the fixing portion is used to fix the circuit board, and the positioning portion is used to position the circuit board.

[0021] In some embodiments, the circuit board includes a circuit substrate and a transmitting circuit module and a receiving circuit module arranged on the circuit substrate, the transmitting circuit module includes the transmitter, the receiving circuit module includes the receiver, and the transmitting circuit module and the receiving circuit module are arranged on the same circuit substrate or respectively on two circuit substrates.

[0022] According to another aspect of an embodiment of the present disclosure, a cleaning device is provided, which includes the above-mentioned sewage detection device.

[0023] The embodiments of the present disclosure have at least the following beneficial effects:

[0024] The above-mentioned sewage detection device is connected in series to the sewage pipeline through the water inlet and sewage outlet on the shell, so that the sewage in the sewage pipeline can be detected. The setting and operation of the sewage detection device in the cleaning equipment are simple and easy to use; at the same time, the sewage detection device seals the detection tube and the detection component in the accommodating cavity through the shell, forming a stable and clean detection environment in the accommodating cavity, preventing dust and water vapor from entering the accommodating cavity to contaminate the detection tube or interfere with the detection signal of the detection component, thereby ensuring the accuracy and stability of the sewage detection device; in addition, it can also protect the detection tube and the detection component to avoid damage to the detection tube and the detection component, so as to extend the service life of the sewage detection device. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure, a brief introduction will be given below to the drawings required for use in the description of the embodiments. Obviously, the drawings described below are some embodiments of the present disclosure. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0026] FIG1 shows a schematic diagram of the three-dimensional structure of a sewage detection device according to an embodiment of the present disclosure;

[0027] FIG2 shows a schematic diagram of the three-dimensional structure of the sewage detection device in FIG1 from another perspective;

[0028] FIG3 is a schematic diagram showing the three-dimensional structure of the sewage detection device in FIG1 with the housing cover removed;

[0029] FIG4 is a schematic diagram showing the three-dimensional structure of the sewage detection device in FIG3 with the housing cover removed from another perspective;

[0030] FIG5 shows a front view of the sewage detection device in FIG3 with the housing cover removed;

[0031] FIG6 is a schematic diagram showing the three-dimensional structure of the housing of the sewage detection device in FIG1 ;

[0032] FIG7 is a schematic diagram showing the three-dimensional structure of the housing cover of the sewage detection device in FIG1 ;

[0033] FIG8 shows a schematic three-dimensional structural diagram of the housing cover of the sewage detection device in FIG1 from another perspective.

[0034] Figure markings: 100, outer shell; 110, first shell; 111, water inlet; 1111, water inlet joint; 112, water outlet; 1121, water outlet joint; 113, wire hole; 1131, sealing rubber sleeve; 114, connecting part; 115, fixing part; 116, positioning part; 120, second shell; 121, sealing gasket; 122, connecting part; 123, connecting gasket; 200, detection tube; 210, light-transmitting surface; 300, detection component; 310, transmitter; 320, receiver; 330, circuit board; 331, transmitting end circuit module; 332, receiving end circuit module; 333, fixing hole; 334, positioning hole. DETAILED DESCRIPTION

[0035] The following will be combined with the accompanying drawings in the embodiments of the present disclosure to clearly and completely describe the technical solutions in the embodiments of the present disclosure. Obviously, the embodiments described are only part of the embodiments of the present disclosure, not all of the embodiments. Based on the embodiments of the present disclosure, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of the present disclosure.

[0036] In addition, the present disclosure may repeat reference numbers and / or reference letters in different examples. This repetition is for the purpose of simplicity and clarity and does not in itself indicate the relationship between the various embodiments and / or arrangements discussed. In addition, the present disclosure provides examples of various specific processes and materials, but those skilled in the art will recognize the application of other processes and / or the use of other materials.

[0037] The present disclosure is described below with reference to specific embodiments and in conjunction with the accompanying drawings:

[0038] An embodiment of the present disclosure provides a sewage detection device. As shown in Figures 1 to 8, the sewage detection device includes a housing 100, a detection tube 200, and a detection assembly 300. A accommodating cavity is provided in the housing 100, and the housing 100 is provided with a water inlet 111, a water outlet 112, and a wire hole 113 connected to the accommodating cavity. The detection tube 200 is arranged in the accommodating cavity, and the two ends of the detection tube 200 are respectively connected to the water inlet 111 and the water outlet 112. The detection assembly 300 is arranged in the accommodating cavity, and the detection assembly 300 includes a transmitter 310, a receiver 320, a circuit board 330 connected to the transmitter 310 and the receiver 320, and a wiring harness connected to the circuit board 330. The transmitter 310 and the receiver 320 are arranged on both sides of the detection tube 200 opposite to each other. The wiring harness extends to the outside of the housing 100 through the wire hole 113.

[0039] In the sewage detection device disclosed in the present invention, as shown in Figures 1 to 8, the sewage detection device is connected in series to the sewage pipeline through the water inlet 111 and the sewage outlet on the housing 100, so that the sewage in the sewage pipeline can be detected. The sewage detection device is simple to set up and operate in the cleaning equipment, and is easy to use. At the same time, the sewage detection device seals the detection tube 200 and the detection component 300 in the accommodating cavity through the housing 100, forming a stable and clean detection environment in the accommodating cavity, preventing dust and water vapor from entering the accommodating cavity to contaminate the detection tube 200 or interfere with the detection signal of the detection component 300, thereby ensuring the accuracy and stability of the detection of the sewage detection device. In addition, it can also protect the detection tube 200 and the detection component 300, avoid damage to the detection tube 200 and the detection component 300, and extend the service life of the sewage detection device.

[0040] In some embodiments, as shown in Figures 1 to 5, the water inlet 111 and the sewage outlet on the housing 100 can be connected in series to a sewage pipeline, allowing sewage to enter the detection tube 200 within the accommodating chamber through the water inlet 111. Simultaneously, the transmitter 310 and receiver 320 of the detection assembly 300 are positioned on opposite sides of the detection tube 200 to detect the sewage flowing through the detection tube 200 and determine its cleanliness.

[0041] In some embodiments, as shown in FIG3 to FIG5 , the detection component 300 is a light detection component 300 , an electrical signal detection component 300 , an ultrasonic detection component 300 , or the like, which can be used to detect parameters such as sewage turbidity.

[0042] As an optional embodiment, as shown in Figures 1 to 5 , the detection assembly 300 is a light detection assembly 300 . At least two opposite sides of the detection tube 200 are provided with light-transmitting surfaces 210 . The emitter 310 and the receiver 320 correspond to the light-transmitting surfaces 210 .

[0043] In some embodiments, as shown in Figures 1 to 5, a light-transmitting surface 210 is provided on at least two opposing sides of the detection tube 200. The emitter 310 and the receiver 320 are disposed oppositely on opposite sides of the detection tube 200, with the emitter 310 and the receiver 320 corresponding to the light-transmitting surface 210, respectively. Furthermore, the detection assembly 300 is a light detection assembly 300, meaning that the emitter 310 emits detection light, and the receiver 320 is used to receive the detection light after it passes through the detection tube 200. When the detection light passes through the detection tube 200, it is affected by the sewage in the detection tube 200, causing a portion of the detection light to scatter and change its propagation direction. The receiver 320 is only able to receive a portion of the detection light emitted by the emitter 310. The detection assembly 300 can determine the impurity content in the sewage in the detection tube 200 based on the amount of light loss received by the receiver 320, thereby determining the cleanliness of the sewage.

[0044] In some embodiments, at least two sets of transmitters 310 and receivers 320 may be provided in the detection component 300, so that one set of transmitters 310 and receivers 320 is used for detection, and the other set of transmitters 310 and receivers 320 is used for blank reference.

[0045] Because the detection assembly 300 is a light detection assembly 300 and the light-transmitting surface 210 of the detection tube 200 is significantly affected by the environment, the sewage detection device of the disclosed embodiment disposes the detection tube 200 and the detection assembly 300 in a sealed housing. This prevents dust, moisture, and the like from entering the housing chamber and contaminating the detection tube 200 or interfering with the detection assembly 300, thereby improving the detection accuracy of the sewage detection device.

[0046] As an optional embodiment, as shown in FIG. 3 to FIG. 5 , at least the light-transmitting surface 210 of the detection tube 200 is perpendicular to the detection light emitted by the light detection assembly 300 .

[0047] In some embodiments, as shown in Figures 3 to 5, by at least making the light-transmitting surface 210 of the detection tube 200 perpendicular to the detection light emitted by the detection component 300, it is possible to avoid, to a certain extent, refraction and other phenomena that affect the passage path of the detection light when the detection light passes through the light-transmitting surface 210 of the detection tube 200, so that the remaining detection light after passing through the detection tube 200 and the sewage in the detection tube 200 maintains a basic passage path so as to be received and detected by the receiver 320, and the impurity content in the sewage in the detection tube 200 is obtained based on the intensity of the received detection light to determine the cleanliness of the sewage.

[0048] As an optional embodiment, as shown in FIG. 3 to FIG. 6 , the detection tube 200 is made of a light-transmitting material.

[0049] In some embodiments, as shown in Figures 3 to 6, the detection tube 200 can be made of a light-transmitting material. For example, the detection tube 200 can be made of quartz glass, transparent plastic, or the like, so that the detection tube 200 has a light-transmitting surface 210 for detection. The detection tube 200 can be manufactured separately from the housing 100. The separately manufactured detection tube 200 is placed in the accommodating cavity, so that the ends of the detection tube 200 are connected to the water inlet 111 and the sewage outlet, respectively. This ensures that sewage flows only through the detection tube 200 when flowing through the accommodating cavity, without affecting the detection assembly 300 in the accommodating cavity. Optionally, the housing 100 can be made of a metal material or a separate plastic material, depending on design requirements. For example, the housing 100 can be manufactured separately through an injection molding process to form a accommodating cavity with a water inlet 111, a water outlet 112, and a wire hole 113 within the housing 100, so that the detection tube 200 and the detection assembly 300 can be placed within the accommodating cavity of the housing 100.

[0050] In some embodiments, sealing materials such as sealant can be used to improve the sealing performance of the connection between the detection tube 200 and the water inlet 111 and the sewage outlet to prevent sewage from leaking at the water inlet 111 and the water outlet 112 .

[0051] In some other embodiments, for example, when the detection process of the detection component 300 does not require the light transmittance of the detection tube 200, the detection tube 200 itself may also have light-shielding properties.

[0052] As an optional embodiment, the shell 100 and the detection tube 200 are double-shot injection molded, the shell 100 uses a light-shielding injection molding material, and the detection tube 200 uses a light-transmitting injection molding material; or, the shell 100 includes a shell 100 body and a light-shielding layer arranged on the shell 100 body, the shell 100 body and the detection tube 200 are integrally injection molded, and the shell 100 body and the detection tube 200 use a light-transmitting injection molding material.

[0053] In some embodiments, the housing 100 and the detection tube 200 can be manufactured using a two-color injection molding process, wherein the housing 100 is molded using a light-shielding injection molding material, and the detection tube 200 is molded using a light-transmitting injection molding material. After being molded using the two-color injection molding process, the detection tube 200 is entirely light-transmitting, thereby meeting the light-transmittance requirements of the light detection assembly 300. The housing 100's overall light-shielding properties prevent ambient light from entering the accommodating cavity within the housing 100, thereby preventing ambient light from interfering with the detection results of the light detection assembly 300.

[0054] In other embodiments, the housing 100 body and the detection tube 200 can be manufactured by an integral injection molding process. The housing 100 body and the detection tube 200 can be made of a light-transmitting injection molding material. After being manufactured by the integral injection molding process, the housing 100 body and the detection tube 200 are light-transmitting as a whole. Optionally, in order to prevent ambient light from entering the accommodating cavity within the housing 100 and interfering with the detection results of the light detection component 300, a light-shielding layer can be provided on the housing 100 body to prevent ambient light from entering the accommodating cavity within the housing 100.

[0055] In the above embodiment, the housing 100 may be formed by injection molding of PET (polyester resin) material.

[0056] As an optional embodiment, as shown in FIG. 1 to FIG. 6 , the water inlet 111 is provided with a water inlet joint 1111 , and the water outlet 112 is provided with a water outlet joint 1121 .

[0057] In some embodiments, as shown in Figures 1 to 6, the water inlet 111 is correspondingly provided with a water inlet connector 1111, and the water outlet 112 is correspondingly provided with a water outlet connector 1121, so that the water inlet connector 1111 and the water outlet connector 1121 protrude relative to the outer shell 100 so as to be conveniently connected to the sewage pipe.

[0058] In some embodiments, as shown in Figures 1 to 6, the water inlet connector 1111 may be provided with a protruding anti-detachment ring protruding from the outer wall of the water inlet connector 1111, so as to prevent the sewage pipe from falling off the water inlet connector 1111 after the water inlet connector 1111 is connected to the sewage pipe. Similarly, the water outlet connector 1121 may be provided with a protruding anti-detachment ring protruding from the outer wall of the water outlet connector 1121, so as to prevent the sewage pipe from falling off the water outlet connector 1121 after the water outlet connector 1121 is connected to the sewage pipe.

[0059] As an optional embodiment, as shown in FIG. 1 to FIG. 6 , a connecting portion 114 is provided on the outer side of the housing 100 , and the connecting portion 114 is used to connect to a cleaning device.

[0060] In some embodiments, as shown in Figures 1 to 6, the housing 100 may be provided with a connecting portion 114 for connecting to a cleaning device, thereby securing the sewage detection device within the cleaning device. For example, the connecting portion 114 may protrude relative to the housing 100 and may include a through-hole through which a connecting member 122, such as a screw, may pass through the through-hole and threadably engage the cleaning device, thereby securing the housing 100 within the cleaning device, effectively securing the entire sewage detection device within the cleaning device.

[0061] As an optional embodiment, as shown in FIG. 1 to FIG. 8 , the housing 100 includes a first shell 110 and a second shell 120 , and the second shell 120 is buckled onto the first shell 110 to enclose and form a receiving cavity.

[0062] In some embodiments, as shown in Figures 1 to 8, the housing 100 may include a first shell 110 and a second shell 120. The second shell 120 is snapped onto the first shell 110 to form a housing cavity. The first shell 110 may serve as the main shell, with the detection tube 200 and the detection assembly 300 disposed within and relatively fixed to the first shell 110. The second shell 120 snaps onto the first shell 110 as a cover.

[0063] In some embodiments, as shown in Figures 1 to 8 , the second housing 120 may be plate-shaped when used as a housing cover. The plate-shaped second housing 120 is placed on the first housing 110 to form a sealed receiving cavity with the first housing 110 .

[0064] In some embodiments, the shape and volume of the first shell 110 can be set according to the size specifications of the detection tube 200 and the size specifications of the detection component 300 to ensure that the detection tube 200 and the detection component 300 can be placed in the accommodating cavity mainly formed by the first shell 110.

[0065] In some embodiments, for example, as shown in Figures 1 to 8, a threaded hole may be provided on the first shell 110, and a corresponding through hole may be provided on the second shell 120. By using a screw as a connecting member 122 to pass through the through hole and connect with the threaded hole, the second shell 120 can be snapped and fixed to the first shell 110. For another example, a through hole may be provided on the first shell 110, and a corresponding threaded hole may be provided on the second shell 120. By using a screw to pass through the through hole and connect with the threaded hole, the second shell 120 can be snapped and fixed to the first shell 110. Optionally, as shown in Figures 1, 2 and 7, a connecting gasket 123 may be provided under the connecting member 122 to improve the fastening connection effect of the connecting member 122 on the first shell 110 and the second shell 120, and to prevent the connecting member 122 from rotating and falling off.

[0066] As an optional embodiment, as shown in FIG. 1 to FIG. 8 , the wire hole 113 is provided with a sealing rubber sleeve 1131 ; and a sealing gasket 121 or a sealing ring is provided on the side of the second shell 120 facing the first shell 110 .

[0067] In some embodiments, as shown in Figures 3 and 6, a sealing rubber sleeve 1131 is provided on the wire hole 113. When the wire harness passes through the wire hole 113, the sealing rubber sleeve 1131 can seal the gap between the wire hole 113 and the wire harness to prevent dust, water vapor, etc. from entering the accommodating cavity of the housing 100 through the wire hole 113.

[0068] In some embodiments, as shown in Figures 1 and 8, a sealing gasket 121 or a sealing ring is provided on the side of the second housing 120 facing the first housing 110. When the second housing 120 is fastened to the first housing 110, the sealing gasket 121 or the sealing ring is located at the contact point between the second housing 120 and the first housing 110. When the second housing 120 and the first housing 110 are connected using fasteners such as screws, the second housing 120 can be pressed tightly against the first housing 110, and the sealing gasket 121 or the sealing ring can seal the gap between the first housing 110 and the second housing 120 to prevent dust, moisture, etc. from entering the accommodating cavity of the housing 100 through the wire hole 113.

[0069] In the sewage detection device disclosed herein, the provision of sealing structures such as the sealing rubber sleeve 1131, the sealing gasket 121, and the sealing ring seals the gaps or through-holes in the housing 100, keeping the accommodating cavity clean and dry. This ensures that the outside of the detection tube 200 and the detection assembly 300 remain clean and dry. This ensures that the detection effectiveness of the detection assembly 300 is maintained while also protecting the detection tube 200 and the detection assembly 300, thereby extending the service life of the detection assembly 300 and the sewage detection device.

[0070] In some embodiments, the sealing pad 121 may include a foam layer, and the sealing between the first housing 110 and the second housing 120 is achieved through deformation of the foam layer.

[0071] As an optional embodiment, as shown in Figures 3 to 6 , a fixing portion 115 and / or a positioning portion 116 are provided on the inner side of the housing 100. The fixing portion 115 is used to fix the circuit board 330, and the positioning portion 116 is used to position the circuit board 330.

[0072] In some embodiments, as shown in Figures 3 to 6, a fixing portion 115 may be provided on the inner side of the housing 100. The fixing portion 115 can secure the circuit board 330 within the accommodating cavity, thereby fixing the position of the circuit board 330 within the accommodating cavity. For example, the fixing portion 115 is a threaded hole provided at the bottom of the first housing 110. Accordingly, a fixing hole 333 is provided on the circuit board 330, and a connecting member 122, such as a screw, is passed through the fixing hole 333 on the circuit board 330 and connected to the threaded hole, thereby securing the circuit board 330 to the bottom of the first housing 110.

[0073] In some embodiments, as shown in Figures 3 to 6, the transmitter 310 and the receiver 320 are generally arranged on a circuit board 330, so the requirements for the installation position of the circuit board 330 are relatively high. In the sewage detection device of the present disclosure, a positioning portion 116 can be provided on the inner side of the housing 100 to position the circuit board 330 through the positioning portion 116, thereby improving the accuracy of the installation position of the transmitter 310 and the receiver 320 in the accommodating cavity. For example, the positioning portion 116 is a positioning post provided at the bottom of the first shell 110 and protruding relative to the bottom of the first shell 110. Accordingly, a positioning hole 334 is provided on the circuit board 330. After aligning the positioning hole 334 on the circuit board 330 with the positioning post, the circuit board 330 can be set at the bottom of the first shell 110.

[0074] As an optional embodiment, as shown in Figures 3 to 5, a circuit board 330 includes a circuit substrate and a transmitter circuit module 331 and a receiver circuit module 332 disposed on the circuit substrate. The transmitter circuit module 331 includes a transmitter 310, and the receiver circuit module 332 includes a receiver 320. The transmitter circuit module 331 and the receiver circuit module 332 are disposed on the same circuit substrate or on two separate circuit substrates.

[0075] In some embodiments, as shown in Figures 3 through 5 , in the detection assembly 300, the transmitter 310 is disposed in a transmitter circuit module 331, and the receiver 320 can be disposed in a receiver circuit module 332. Furthermore, the transmitter circuit module 331 and the receiver circuit module 332 can be disposed on two circuit substrates, respectively. For example, as shown in Figures 3 through 5 , the two circuit substrates can be disposed oppositely on opposite sides of the detection tube 200, such that the transmitter 310 and the receiver 320 are positioned on opposite sides of the detection tube 200. In this embodiment, the two substrates can be easily installed on opposite sides of the detection tube 200 in the accommodating cavity, and there are no special requirements for the presence or size of a gap between the detection tube 200 and the first housing 110.

[0076] In other embodiments, in the detection assembly 300, the transmitter 310 is disposed in the transmitter circuit module 331, and the receiver 320 can be disposed in the receiver circuit module 332. Both the transmitter circuit module 331 and the receiver circuit module 332 are disposed on a single circuit substrate. The circuit substrate can be placed entirely at the bottom of the first housing 110, with the transmitter 310 and the receiver 320 located on opposite sides of the detection tube 200. Because the transmitter circuit module 331 and the receiver circuit module 332 are disposed on the same circuit substrate, the overall size of the circuit substrate is relatively large, making the installation of the detection assembly 300 relatively complex. In this embodiment, the detection tube 200 can be prepared separately, and the order of installation of the detection tube 200 and the detection assembly 300 can be adjusted so that the detection assembly 300 is first placed in the accommodating cavity, followed by the detection tube 200.

[0077] Based on the same inventive concept, an embodiment of the present disclosure further proposes a cleaning device, which includes the above-mentioned sewage detection device.

[0078] Since the cleaning equipment provided by the present disclosure includes the sewage detection device of the above technical solution, the cleaning equipment provided by the present disclosure has all the beneficial effects of the above sewage detection device, which will not be described in detail here.

[0079] In some embodiments, the cleaning device may be a handheld cleaning device, a cleaning robot, a cleaning base station, or the like that generates sewage during the cleaning process.

[0080] In the present disclosure, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Moreover, a first feature being "above," "above," and "above" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature includes the first feature being directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0081] In this disclosure, unless otherwise expressly specified or limited, the terms "connect," "fix," etc. should be understood in a broad sense. For example, "fix" can mean a fixed connection, a detachable connection, or an integral connection; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean internal communication between two elements or an interaction between two elements, unless otherwise expressly specified. Those skilled in the art will understand the specific meanings of the above terms in this disclosure based on specific circumstances.

[0082] Although the embodiments of the present disclosure have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and alterations may be made to the embodiments without departing from the principles and spirit of the present disclosure, the scope of which is defined by the claims and their equivalents.

Claims

1. A sewage detection device, comprising: A housing, wherein a receiving cavity is provided in the housing, and a water inlet, a water outlet and a wire hole communicating with the receiving cavity are provided on the housing; A detection tube, wherein the detection tube is disposed in the accommodating cavity, and both ends of the detection tube are respectively connected to the water inlet and the water outlet; and A detection component is arranged in the accommodating cavity, and the detection component includes a transmitter, a receiver, a circuit board connected to the transmitter and the receiver, and a wiring harness connected to the circuit board. The transmitter and the receiver are relatively arranged on both sides of the detection tube, and the wiring harness extends to the outside of the shell through the wire hole.

2. The sewage detection device according to claim 1, wherein: The detection component is a light detection component, and at least two opposite sides of the detection tube are provided with light-transmitting surfaces, and the transmitter and the receiver correspond to the light-transmitting surfaces.

3. The sewage detection device according to claim 2, wherein: At least the light-transmitting surface of the detection tube is perpendicular to the detection light emitted by the light detection component.

4. The sewage detection device according to claim 2, wherein: The detection tube is made of light-transmitting material.

5. The sewage detection device according to claim 2, wherein: The shell and the detection tube are double-color injection molded, the shell adopts a light-shielding injection molding material, and the detection tube adopts a light-transmitting injection molding material; or, the shell includes a shell body and a light-shielding layer arranged on the shell body, the shell body and the detection tube are integrally injection molded, and the shell body and the detection tube adopt a light-transmitting injection molding material.

6. The sewage detection device according to any one of claims 1 to 5, wherein: The water inlet is provided with a water inlet joint, and the water outlet is provided with a water outlet joint.

7. The sewage detection device according to any one of claims 1 to 6, wherein: A connecting portion is provided on the outer side of the shell, and the connecting portion is used to be connected to a cleaning device.

8. The sewage detection device according to any one of claims 1 to 7, wherein: The housing comprises a first shell and a second shell, wherein the second shell is buckled on the first shell to enclose and form the accommodating cavity.

9. The sewage detection device according to claim 8, wherein: The wire-passing hole is provided with a sealing rubber sleeve; and a sealing gasket or a sealing ring is provided on the side of the second shell facing the first shell.

10. The sewage detection device according to claim 5, wherein: A fixing portion and / or a positioning portion is provided on the inner side of the housing, wherein the fixing portion is used to fix the circuit board, and the positioning portion is used to position the circuit board.

11. The sewage detection device according to any one of claims 1 to 10, wherein: The circuit board includes a circuit substrate and a transmitting circuit module and a receiving circuit module arranged on the circuit substrate, the transmitting circuit module includes the transmitter, the receiving circuit module includes the receiver, and the transmitting circuit module and the receiving circuit module are arranged on the same circuit substrate or respectively on two circuit substrates.

12. A cleaning device, comprising the sewage detection device according to any one of claims 1 to 11.

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