Cleaning equipment and detection device

Abstract

The present disclosure relates to a cleaning device and a detection device. An air duct is provided on the body, and the air duct includes an air duct suction port and an air duct discharge port; the detection device includes a housing and a detection assembly located in the inner cavity of the housing. The housing has an air outlet and an air inlet facing the working surface to be processed. The air outlet of the housing is communicated with the air duct on the body. The air duct is configured to form a negative pressure in the inner cavity of the housing so that the air inlet of the housing sucks the airflow in the area of the working surface to be processed. The detection assembly is configured to detect the parameters of the airflow in the inner cavity of the housing. The detection assembly detects the parameters of the airflow in the inner cavity of the housing in real time, and the user can judge the dryness of the working surface to be processed according to the parameters, without repeatedly bending down to judge the dryness of the carpet with the body, which greatly improves the user experience and the comfort of use.

Description

Technical Field

[0001] The present disclosure relates to the field of cleaning, and particularly to a cleaning device and a detection device. Background Art

[0002] Currently, in addition to being able to clean carpets, carpet cleaners have also added a drying mode. After the user uses the carpet cleaner to clean the carpet, the drying mode can be used. The air outlet is heated by the heating wire of the heater to raise the temperature, and the carpet is directly dried.

[0003] In order for the user to know the drying situation of the carpet in real time during the drying mode, the cleaning device is also configured with a detection device, and the detection device is configured to detect the dryness of the carpet. In order for the detection device to accurately detect parameters in the working surface to be detected, such as in the carpet, the detection device needs to be set at a position very close to the working surface to be detected, so that the distance between the detection device and the carpet can meet the sensing range of the detection device.

[0004] Since the hair lengths of different types of carpets are different, when the cleaning device moves, the detection device will rub against the carpet, and there is a risk of damage to the detection device or scratching of the carpet; in addition, a large resistance will be formed between the detection device and the carpet, thereby affecting the movement of the carpet cleaner. Summary of the Invention

[0005] The present disclosure provides a cleaning device and a detection device to solve the problems existing in the prior art.

[0006] The cleaning device of the present disclosure includes:

[0007] A body;

[0008] An air duct, which is arranged in the body and includes an air duct suction port and an air duct discharge port;

[0009] A detection device, which includes a housing and a detection component located in the inner cavity of the housing; the housing has an air outlet and an air inlet facing the working surface to be detected; the air outlet of the housing is communicated with the air duct;

[0010] The air duct is configured to form a negative pressure in the inner cavity of the housing, so that the air inlet of the housing sucks the air flow in the area of the working surface to be detected;

[0011] The detection component is configured to detect the parameters of the air flow in the inner cavity of the housing.

[0012] In an embodiment of the cleaning device provided by the present disclosure, the detection device includes a filter cover arranged in the inner cavity of the housing, and the detection component is located in the filter cover (13); the aperture on the filter cover is configured to be waterproof and breathable.

[0013] In one embodiment of the cleaning device provided by the present disclosure, the filter cover is a PE film.

[0014] In one embodiment of the cleaning device provided by the present disclosure, the housing extends out from the middle part of the machine body and extends towards the working surface to be treated; the housing is integrally movably connected to the machine body and is configured to move into the machine body when encountering resistance.

[0015] In one embodiment of the cleaning device provided by the present disclosure, one end of the housing facing the working surface to be treated has a curved outer contour.

[0016] In one embodiment of the cleaning device provided by the present disclosure, the housing is configured to move relative to the machine body in the vertical direction through a guiding mechanism, and the cleaning device further includes a first elastic device pre-pressed between the housing and the machine body, and the housing has a tendency to move out of the machine body under the action of the first elastic device.

[0017] In one embodiment of the cleaning device provided by the present disclosure, the housing includes a lower housing having an open end and an upper housing located at the open end of the lower housing, and the upper housing is configured to cover the open end of the lower housing; there is a gap between the outer wall of the filter cover and the inner wall of the lower housing.

[0018] In one embodiment of the cleaning device provided by the present disclosure, the lower housing is configured to move towards the upper housing when subjected to a first external force, and / or is configured to rotate relative to the filter cover when subjected to a second external force.

[0019] In one embodiment of the cleaning device provided by the present disclosure, scraping strips are arranged at intervals on the inner wall of the lower housing; the scraping strips are configured to scrape foreign matters on the filter cover when moving.

[0020] In one embodiment of the cleaning device provided by the present disclosure, the scraping strips extend in the axial direction or / and in the circumferential direction.

[0021] In one embodiment of the cleaning device provided by the present disclosure, a through hole for the lower housing to pass through is provided on the side wall of the machine body, a stepped groove is provided on the inner wall of the through hole, and a flange extending radially outwards and supported on the stepped groove is provided on the outer wall of the lower housing; the upper housing covers the position of the through hole and is configured to have a gap with the end face of the lower housing supported on the stepped groove through the flange.

[0022] In one embodiment of the cleaning device provided by the present disclosure, the first external force and the second external force are at least the resistance received by the housing when the cleaning device is walking.

[0023] In an embodiment of the cleaning device provided by the present disclosure, an electro - actuating device is provided between the upper housing and the lower housing, and the first external force is provided by the electro - actuating device.

[0024] In an embodiment of the cleaning device provided by the present disclosure, the electro - actuating device includes an electromagnet provided on the upper housing or the body, and a magnetic material for the electromagnet to adsorb after being energized is provided on the lower housing; alternatively, the electro - actuating device includes an electromagnet provided on the lower housing, and a magnetic material for the electromagnet to adsorb after being energized is provided on the upper housing or the body.

[0025] In an embodiment of the cleaning device provided by the present disclosure, a second elastic device for resetting the lower housing is further provided between the upper housing and the lower housing.

[0026] In an embodiment of the cleaning device provided by the present disclosure, the upper housing and the lower housing are connected together by a threaded manner and are configured to relatively move the upper housing and the lower housing by rotation.

[0027] In an embodiment of the cleaning device provided by the present disclosure, the upper housing and the lower housing are detachably connected together.

[0028] In an embodiment of the cleaning device provided by the present disclosure, the filter cover is connected to the upper housing, and the open end of the filter cover is communicated with the air outlet located on the upper housing; the air inlet is provided at the bottom of the lower housing.

[0029] In an embodiment of the cleaning device provided by the present disclosure, the air inlet is a grille, and the grille protrudes from the inner wall of the lower housing.

[0030] In an embodiment of the cleaning device provided by the present disclosure, the cleaning device further includes a connecting pipe, and the connecting pipe communicates the air outlet of the housing with the air duct; the diameter of the connecting pipe is between 3 mm and 5 mm.

[0031] In an embodiment of the cleaning device provided by the present disclosure, the detection component is a humidity detection component, and the humidity detection component is configured to detect the humidity parameter of the air flow in the inner cavity of the housing.

[0032] In an embodiment of the cleaning device provided by the present disclosure, a display is further included, and the display at least displays information for characterizing the data detected by the humidity detection component.

[0033] In an embodiment of the cleaning device provided by the present disclosure, the cleaning device is a carpet cleaning machine; the air flow sucked by the air duct suction port is configured to be blown from the air duct discharge port to the work surface to be cleaned.

[0034] On the other hand, the present disclosure also provides a detection device, which is characterized by including a housing and a detection component located in the inner cavity of the housing; the housing has an air outlet and an air inlet; the air outlet of the housing is configured to communicate with the air duct in the machine body; the air inlet is configured to face the working surface to be detected; the detection component is configured to detect the parameters of the air flow in the inner cavity of the housing.

[0035] In an embodiment of the detection device further provided by the present disclosure, the detection device includes a filter cover arranged in the inner cavity of the housing, and the detection component is located inside the filter cover; the aperture on the filter cover is configured to be waterproof and breathable.

[0036] In an embodiment of the detection device further provided by the present disclosure, the lower housing is configured to move towards the upper housing when subjected to a first external force, and / or is configured to rotate relative to the filter cover when subjected to a second external force.

[0037] The cleaning device of the present disclosure sucks the air flow in the area near the working surface to be detected into the inner cavity of the housing in the form of negative pressure, so that the detection component can accurately detect the parameters of the working surface to be detected, avoiding the influence of air on the detection component and improving the detection accuracy of the working surface to be detected. In addition, the user can judge the dryness degree of the working surface to be detected according to this parameter, without repeatedly bending down to judge the dryness of the carpet with the body, greatly improving the user experience and use comfort.

[0038] The detection device of the present disclosure can also be movably arranged on the machine body. When the detection device is subjected to an external force when the cleaning device is moving, it moves into the machine body of the cleaning device, which can avoid the problem of damage to the detection device caused by rubbing or scratching the working surface to be detected; at the same time, it also reduces the resistance between the working surface to be detected and the detection device, ensures the smooth movement of the cleaning device, improves its use safety, and may also improve the user experience.

[0039] Through the following detailed description of the exemplary embodiments of the present disclosure with reference to the accompanying drawings, other features and advantages of the present disclosure will become clear. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] The drawings incorporated in the specification and constituting a part of the specification illustrate the embodiments of the present disclosure and, together with the description, are used to explain the principles of the present disclosure.

[0041] Figure 1 is a schematic cross-sectional structure view of an embodiment of the cleaning device of the present disclosure from one perspective;

[0042] Figure 2 is Figure 1 a partial enlarged view of part A of

[0043] Figure 3It is a schematic cross-sectional structure diagram of another perspective of an embodiment of the cleaning device of the present disclosure;

[0044] Figure 4 It is Figure 3 a partially enlarged view of part B;

[0045] Figure 5 It is Figure 4 a schematic diagram of the partial structure of the cleaning device after the lower housing moves towards the interior of the machine body under the action of an external force;

[0046] Figure 6 It is Figure 4 a schematic diagram of the partial structure of the cleaning device after the middle housing as a whole moves towards the interior of the machine body under the action of an external force;

[0047] Figure 7 It is a schematic diagram of the structure of the first perspective of the lower housing of the present disclosure;

[0048] Figure 8 It is a schematic diagram of the structure of the second perspective of the lower housing of the present disclosure;

[0049] Figure 9 It is a schematic cross-sectional structure diagram of the second embodiment of the detection device of the present disclosure;

[0050] Figure 10 It is a schematic cross-sectional structure diagram of the third embodiment of the detection device of the present disclosure;

[0051] Figure 11 It is a schematic three-dimensional structure diagram of the fourth embodiment of the detection device of the present disclosure.

[0052] Figure 12 It is Figure 11 a bottom view;

[0053] Figure 13 It is a schematic diagram of the structure of the display;

[0054] Figure 14 It is a schematic diagram of the structure of the second perspective of the lower housing of the present disclosure;

[0055] Figure 15 It is a schematic diagram of a fitting curve showing the corresponding relationship between the motion state of the cleaning device and the temperature and humidity of the carpet.

[0056] Figure 16 It is a characteristic curve diagram of the cross-sectional area of the air duct of the cleaning device.

[0057] Figures 1 to 14 The one-to-one correspondence between the names of the components and the reference numerals in the figure is as follows:

[0058] 1 Cleaning device: 10 body, 100 step groove, 101 through hole, 11 shell, 110 shell cavity, 111 upper shell, 1110 air outlet, 1111 first connecting sleeve, second connecting sleeve 1112, 1113 positioning rod, 1114 first upper shell, 1115 second upper shell, 1116 pipe joint, 112 lower shell, 113 hose, 1120 air inlet, 1121 flange, 1122 scraper, 1123 lower ear plate, 12 detection component, 13 filter cover, 14 guide rod, 15 stopper, 16 first elastic device, 17 electromagnet, 18 iron ring, 19 second elastic device;

[0059] 20 Display: 201 Humidity progress bar.

[0060] 30 Heating device. DETAILED DESCRIPTION

[0061] Various exemplary embodiments of the present disclosure will now be described in detail with reference to the accompanying drawings. It should be noted that unless otherwise specifically stated, the relative arrangement of components and steps, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present disclosure.

[0062] The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the present disclosure, its application, or uses.

[0063] Technologies, methods and equipment known to ordinary workers in the relevant field may not be discussed in detail, but where appropriate, the said technologies, methods and equipment should be considered as part of the specification.

[0064] In all examples shown and discussed herein, any specific values should be interpreted as merely exemplary and not limiting. Therefore, other examples of the exemplary embodiments may have different values.

[0065] It should be noted that like reference numerals and letters refer to similar items in the following figures, and therefore, once an item is defined in one figure, it need not be further discussed in subsequent figures.

[0066] As described in the background technology, since different types of carpets have different hair lengths, the detection device of existing cleaning equipment will scratch the carpet when it moves, and there is a risk of damaging or scratching the detection device; in addition, a large resistance will be formed between the detection device and the carpet, making it difficult for the cleaning equipment to move smoothly on the carpet.

[0067] To this end, the present disclosure provides a cleaning device and a detection device. The cleaning device can be used not only for cleaning carpets, but also for cleaning floors or other fabrics. The detection device can be disposed on the cleaning device to detect the airflow on the working surface to be cleaned of the cleaning device, so as to obtain relevant parameters of the working surface to be cleaned. It can be understood that the detection device of the present disclosure is not limited to being applied to the cleaning device, and can be used on any device for detecting relevant parameters on the working surface to be cleaned of the device. In addition, for the sake of easy understanding, the specific structure and working principle of the detection device will be introduced in detail together with the description of the cleaning device of the present disclosure hereinafter, and will not be described separately.

[0068] The cleaning device of the present disclosure includes a body and a detection device. Among them, an air duct is provided on the body, and the air duct includes an air duct suction port and an air duct discharge port. The detection device extends at least partially from the body and extends in the direction of the working surface to be cleaned (that is, the detection device extends vertically downward); the detection device is movably connected to the body and is configured to move into the body when encountering an external force.

[0069] The air duct is configured to form a negative pressure in the detection device, so that the detection device sucks the airflow in the area of the working surface to be cleaned and detects the parameters of the airflow.

[0070] When the cleaning device is working, the airflow in the air duct blows from the air duct discharge port to the working surface to be cleaned, and the airflow gradually takes away the moisture on the working surface to be cleaned, and the working surface to be cleaned gradually dries.

[0071] At the same time, under the action of the air duct suction, a negative pressure can be formed in the detection device. Under the action of the pressure difference inside and outside the detection device, the airflow carrying moisture on the working surface is sucked into the detection device in real time, so that the detection device can detect the parameters of the airflow in real time.

[0072] The detection device is movably disposed on the body. When the cleaning device is walking and the detection device is subjected to an external resistance, it moves into the body of the cleaning device, which can avoid the problem of damage to the detection device or scratching of the carpet caused by rubbing against the carpet, thereby improving its use safety and possibly also improving the user experience; at the same time, it can also reduce the resistance between the carpet and the detection device, ensuring that the cleaning device can walk smoothly on the carpet.

[0073] In addition, the user can judge the dryness of the working surface to be cleaned according to the parameter, without repeatedly bending down to judge the dryness of the carpet with the body, which greatly improves the user experience and use comfort.

[0074] In one embodiment of the present disclosure, the detection device includes a housing and a detection component located in the inner cavity of the housing; the housing has an air outlet and an air inlet facing the working surface to be detected; the air outlet of the housing is communicated with the air duct. The air flow in the area near the working surface to be detected is sucked into the inner cavity of the housing in the form of negative pressure, so that the detection component can accurately detect the parameters of the working surface to be detected, avoiding the influence of air on the detection component and improving the detection accuracy of the working surface to be detected.

[0075] For better understanding, the following will Figures 1 to 14 , taking the cleaning of a carpet as an example, illustrate the cleaning device of the present disclosure in detail, and introduce the detection device of the present disclosure together. It can be understood that the cleaning device can clean other fabrics besides carpets.

[0076] Combined with Figure 1 and Figure 2 , the cleaning device of the present disclosure includes a machine body 10 and a detection device.

[0077] Among them, the machine body 10 refers to a carrier integrating the main functional components of the cleaning device, which can be made of materials such as metal, resin or plastic. For example, the cleaning device includes components such as a floor brush assembly, an air duct system, a sewage tank, a clean water tank, and a main motor provided on the machine body. The clean water tank supplies water to the floor brush assembly, so that the floor brush assembly can use clean water or cleaning liquid to clean the carpet. The air duct system includes an air duct suction port and an air duct discharge port, and the main motor provides suction force for the air duct system to suck sewage or foreign objects. The sewage after the floor brush assembly cleans the working surface is extracted by the air duct suction port into the sewage tank, the solid and liquid dirt remain in the sewage bucket, the air flow separated from the sewage flows into the main motor through the main air inlet of the main motor, and flows out of the main motor through the main air outlet of the main motor. Then, the air flow is discharged out of the machine body through the air duct discharge port. The specific structure of the machine body and the relationship between it and each main functional component, as well as the working principle of each functional component and the existing carpet cleaning machine are the same, and those skilled in the art can fully implement them based on the prior art, so they will not be elaborated here.

[0078] Specifically, an air duct (not shown in the figure) is provided on the machine body 10. The air duct includes an air duct suction port and an air duct discharge port, and the air flow sucked by the air duct suction port is configured to be blown from the air duct discharge port to the working surface to be detected. Usually, the suction port of the air duct is arranged at the position of the floor brush assembly to suck away the sewage formed after the floor brush assembly cleans the working surface to be detected. As described above, this embodiment takes the cleaning of a carpet as an example to illustrate the structure and working principle of the cleaning device in detail. Therefore, for the convenience of expression and understanding, the "carpet" will be used to refer to the working surface to be detected in the following text. That is to say, the air flow sucked by the air duct suction port is configured to be blown from the air duct discharge port to the carpet or the surface of the carpet.

[0079] An air duct is formed inside the body 10. According to some embodiments of the present disclosure, the air duct can be formed by casting, injection molding, assembly, or machining. According to other embodiments of the present disclosure, the air duct can be an air duct designed separately from the body 10, and the air duct is then arranged on the body 10 by means of bonding, welding, or threaded connection, etc.

[0080] Referring to Figure 2 , the detection device of the present disclosure includes a housing 11 and a detection component 12 located in the inner cavity 110 of the housing 11.

[0081] Among them, the housing 11 has an air outlet 1110 and an air inlet 1120 facing the working surface to be cleaned (the carpet surface). The air outlet 1110 of the housing 11 is communicated with the air duct on the body 1. Specifically, the air outlet 1110 of the housing 11 is communicated to any position between the suction port and the main motor of the air duct. Here, any position between the suction port and the main motor of the air duct includes the two end positions of the suction port and the main air inlet of the main motor.

[0082] Specifically, according to some embodiments of the present disclosure, the housing 11 of the present disclosure includes a lower housing 112 having an open end, and an upper housing 111 located at the open end position of the lower housing 112, and the upper housing 111 is configured to cover the open end of the lower housing 112, that is, the upper housing 111 and the lower housing 112, or together with other components enclose the inner cavity 110, so that the main structures such as the chips of the detection component 12 are located in the inner cavity 110, preventing the water vapor, foreign objects, or dust on the carpet from affecting the function of the chips, or causing the chips to short-circuit or other forms of damage.

[0083] Specifically, the upper housing 111 is provided with mounting holes, and the carrier structures such as the main body of the detection component 12 are fixedly connected to the upper housing 111 through the mounting holes, while the chips of the detection component 12 are located in the inner cavity 110 enclosed by the upper housing 111 and the lower housing 112.

[0084] The air inlet 1120 is opened on the lower housing 112, and the air inlet 1120 is configured to face the carpet surface. The air outlet 1110 is opened on the upper housing 111. The air outlet 1110 of the upper housing 111 is communicated with the air duct on the body 10 through a connecting pipe, so that when the air duct suction port sucks air, or when the air flows in the air duct, a negative pressure is formed in the inner cavity 110 of the housing 11.

[0085] In some embodiments of the present disclosure, referring to Figure 2 , the connecting pipe includes a pipe joint 1116 formed on the upper housing 111, and the pipe joint 1116 is communicated with the air outlet 1110 of the upper housing 111. The connecting pipe further includes a hose 113. One end of the hose 113 is connected to the pipe joint 1116, and the other end is communicated with the air duct of the body.

[0086] In some embodiments of the present disclosure, the communication pipeline can also be formed in other ways, such as by injection molding, or by splicing or enclosing to form a communication pipeline on the body 10, etc.

[0087] More specifically, the air inlet 1120 is located on the bottom surface of the lower housing 112. The air inlet 1120 and the air outlet 1110 are staggered, and the central axes thereof do not coincide. The detection component 12 is located on the central axis of the air inlet 1120, and the central axis of the air inlet 1120 coincides with the central axis of the bottom surface of the lower housing 112.

[0088] With such a setting, the airflow entering the inner cavity 110 of the housing from the air inlet 1120 can directly act on the detection component 12, enabling the airflow and the detection component 12 to be in full contact to ensure the accuracy of the detection result of the detection component 12.

[0089] Specifically, the air outlet 1110 communicates with a position in the air duct between the main motor and the air duct suction port, that is, it is connected to the side of the air duct with suction force. Under the action of the pressure difference between the inside and outside of the housing 11, the airflow on the carpet surface is sucked into the inner cavity 110 of the housing 11 from the air inlet 1120 of the housing 11, and finally discharged into the air duct from the air outlet 1110 of the housing 11. When the airflow on the carpet surface flows through the inner cavity 110 of the housing 11, the detection component 12 arranged in the inner cavity 110 is configured to detect the parameters of the airflow in the inner cavity 110 of the housing.

[0090] According to some embodiments of the present disclosure, the detection component 12 of the present disclosure is a humidity detection component, and the humidity detection component is configured to detect the humidity of the airflow entering the inner cavity 110, so that the user can know the dryness degree of the carpet.

[0091] According to some embodiments of the present disclosure, the detection component 12 of the present disclosure can also be used to detect dust, particles, harmful substances or mites, etc. in the airflow. On the basis that the detection component 12 has the function of detecting the humidity of the carpet surface, those skilled in the art can add or replace corresponding detection functions based on actual needs.

[0092] Considering comprehensively from the aspects of cost, durability and product precision, the sensing distance of the existing humidity detection component for water molecules is about a millimeters. Beyond a millimeters, the sensing sensitivity is too low and the function is lost, or only the humidity within the range of a millimeters of the humidity detection component is detected. Therefore, in principle, the closer the humidity detection component is to the area to be detected, the higher the detection precision and sensitivity. Otherwise, the environment near the humidity detection component will interfere with its detection result. By sucking the air in the area near the carpet into the inner cavity of the housing, the present application can increase the distance between it and the ground while ensuring the detection precision.

[0093] However, even so, the height of the humidity detection component from the carpet, or the height of the air inlet 1120 of the housing from the carpet cannot be too large. Under the influence of this design factor, it is necessary to satisfy that the minimum distance from the ground is greater than or equal to b millimeters. Otherwise, the moving resistance between the housing and the carpet is large (the pushing and pulling force during product use, or the resistance when the automatic cleaning device is moving), which affects the user experience poorly, and may also scratch the floor or carpet. Among them, a is greater than b.

[0094] Therefore, in the design, it is required that the distance between the humidity detection component and the carpet hair is within a millimeters, and at the same time, it is necessary to meet the induction requirements on ultra-long hair, long hair, medium hair, and short hair carpets in the market, and the minimum position is greater than or equal to b millimeters from the ground. For example, in a specific embodiment of the present disclosure, a can be 8 mm and b can be 5 mm. For this reason, according to some embodiments of the present disclosure, the housing 11 of the present disclosure partially extends from the body 10 and extends in the direction of the working surface to be treated; the housing 11 is integrally movably connected to the body 10 and is configured to move into the body 10 when encountering resistance.

[0095] With such a setting, when the cleaning device cleans different types of carpets such as ultra-long hair, long hair, medium hair, and short hair carpets, the resistance received by the housing 11 is different. The magnitude of the resistance received by the housing 11 is proportional to the length of the carpet hair, that is, the longer the carpet hair, the greater the resistance received by the housing 11. Therefore, the housing 11 can automatically adjust the distance between the detection component 12 and the carpet surface according to the magnitude of the resistance received, so as to not only meet the induction range of the humidity detection component, but also meet the requirements of its lowest working position.

[0096] Specifically, a through hole 101 for the lower housing 112 to pass through is provided on the bottom plate of the body 10. When the housing 11 is not subject to resistance, the upper housing 111 covers the position of the through hole 101. For example, the edge of the upper housing 111 can be matched with the end surface of the through hole 101 of the body to prevent the housing from falling off from the position of the through hole 101.

[0097] When the cleaning device stops or stands by and the housing 11 is not subject to resistance, the detection device covers the position of the through hole 110 (initial position) under the action of gravity to limit the movement of the whole detection device relative to the body 10. It can be understood that in some other embodiments of the present disclosure, when the housing is not subject to resistance, the detection device can also be lapped on other components inside the body 10 (initial position) under the action of gravity, which will not be specifically described here.

[0098] When the cleaning device cleans the carpet, the lower housing 112 is subject to the resistance of the carpet hair, and the lower housing 112 overcomes gravity to move the housing 11 into the body 10 to Figure 6At the position shown in the figure, that is, the lower housing 112 moves towards the inside of the body 10, pushing the upper housing 111 to move towards the inside of the body 10 synchronously, so that the detection device can automatically adjust the distance between the detection component 12 and the carpet surface according to the magnitude of the resistance received.

[0099] If the detection device relies only on its own weight, there is a risk that the lower housing 112 will get stuck in the through hole 101 and cannot return to the initial position.

[0100] For this reason, according to some embodiments of the present disclosure, see Figures 3 to 6 , the housing 11 of the present disclosure is configured to move relative to the body 10 in the vertical direction through a guiding mechanism, and the detection device further includes a first elastic device 16 pre-pressed between the housing 11 and the body 10. The housing 11 has a tendency to move towards the outside of the body 10 under the action of the first elastic device 16.

[0101] Specifically, the guiding mechanism includes a guiding rod 14 and a stop portion 15. In one embodiment, one end of the guiding rod 14 passes through the upper housing 111 and is arranged on the body 10, the stop portion 15 is arranged at the other end of the guiding rod 14, the first elastic device 16 is sleeved on the guiding rod 14, and is pre-pressed between the upper housing 111 and the stop portion 15. Under the action of the first elastic device 16, the upper housing 111 has a tendency to move towards the outside of the body 10, that is, the first elastic device 16 is always in a compressed state. When the detection device is subjected to an external force, the upper housing 111 pushes the first elastic device 16 to move upward under the guidance of the guiding rod 14. In another embodiment, one end of the guiding rod 14 abuts against the upper housing 111, the other end is provided with a stop portion 15 and passes through the stop portion 15. The portion of the guiding rod 14 after passing through the stop portion 15 forms a free end. The first elastic device 16 is sleeved on the guiding rod 14 and is pre-pressed between the upper housing 111 and the stop portion 15. When the detection device is subjected to an external force, the upper housing 111 further compresses the first elastic device 16 and pushes the guiding rod 14 to move upward. In the above embodiments, the stop portion 15 is arranged on the body 10.

[0102] Specifically, continue to refer to Figure 6 , the upper housing 111 may include a first upper housing 1114 and a second upper housing 1115, and the first upper housing 1114 is located on the top of the second upper housing 1115. The edge position of the second upper housing 1115 extends relative to the first upper housing 1114, and a guiding hole for cooperating with the guiding rod 14 is arranged at this position. The first elastic device 16 may specifically be a spring. The spring is sleeved on the guiding rod 14, one end of the spring abuts against the stop portion 15, and the other end abuts against the edge position of the second upper housing 1115.

[0103] When the cleaning device cleans the carpet, the lower housing 112 is subject to the resistance of the carpet fibers. Under the action of this resistance, the detection device can overcome the elastic force of the first elastic device 16 and its own gravity, and move inwardly towards the interior of the machine body 10 until the upper housing 111 leaves the through hole 101 position, that is, the detection device moves upward away from the initial position to automatically adjust the distance between the detection assembly 12 and the carpet surface according to the magnitude of the resistance received.

[0104] After the resistance exerted by the carpet on the lower housing 112 disappears, the detection device moves from the current position towards the exterior of the machine body 10 to the initial position under the elastic force of the first elastic device 16 and its own weight.

[0105] Since the housing 11 of the detection device of the present disclosure is integrally movably connected to the machine body 10, according to some embodiments of the present disclosure, the air outlet 1110 of the housing 11 and the air duct on the machine body 10 are connected through a hose 113 to facilitate the degree of freedom of movement of the housing 11 relative to the machine body 10. For the connected pipeline formed by splicing or enclosing on the machine body 10, as long as it can ensure that the housing is always hermetically connected to the connected pipeline during the movement. For example, an elastic seal with a certain displacement amount can be provided between the outlet 1110 of the housing and the connected pipeline, or other structures well-known to those skilled in the art that can maintain a sealed connection during movement are not listed one by one here.

[0106] According to another embodiment of the present disclosure, when the upper housing 110 covers the through hole 101, that is, in the initial position, the conduit at the air outlet 1110 is located within the pipeline 113. In this way, when the housing 11 moves upward, the conduit remains within the pipeline 113.

[0107] According to another embodiment of the present application, the detection device may include two guide rods 14 respectively provided on both sides of the detection assembly 12, and two first elastic devices 16 respectively sleeved on the two guide rods 14 to make the movement of the upper housing 110 relative to the machine body 10 smooth and coordinated.

[0108] According to some embodiments of the present disclosure, continue to refer to Figure 1 、 Figure 2 , one end of the housing 11 of the present disclosure facing the working surface to be processed has a curved outer contour.

[0109] The curved outer contour of the housing 11 contacts the working surface such as the carpet surface. When the cleaning device walks on the carpet, the housing 11 and the carpet cooperate and slide through the smooth curved surface, and will not scratch or damage the carpet fibers, so as to protect the integrity of the carpet; in addition, the design of the curved outer contour can also reduce the resistance between it and the carpet, which is beneficial to the movement of the cleaning device on the carpet to clean the entire carpet.

[0110] As is well known, humidity detection components and the like belong to precision electronic parts. To meet their sensing range, the humidity detection components are relatively close to the carpet, and the use environment is harsh, making them extremely vulnerable to the influence of water, dust, dirt, etc. on their service life and detection accuracy.

[0111] Therefore, according to some embodiments of the present disclosure, referring further to Figure 2 , the detection device of the present disclosure further includes a filter cover 13 disposed in the inner cavity 110 of the housing 11, and the detection component 12 is located inside the filter cover 13; the aperture on the filter cover 13 is configured to be waterproof and breathable.

[0112] Specifically, the upper housing 111 has a first connecting sleeve 1111 extending into the inner cavity 110, and the filter cover 13 is inserted into the first connecting sleeve 1111 and is disposed on the first connecting sleeve 1111 by means of bonding, welding, screw connection, etc.

[0113] After the detection device is provided with the filter cover 13, the air flow on the carpet surface can enter the inner cavity 101 through its aperture, so that the detection component 12 can detect the parameters of the air flow, and at the same time, it can prevent water, dust, dirt, etc. from entering the inner cavity where the detection component 12 is located, thereby affecting its detection accuracy and service life. That is to say, the filter cover 13 has functions such as air permeability, waterproofness, dust prevention, and foreign object prevention. By selecting an appropriate aperture, the purpose of waterproof and breathable can be achieved.

[0114] According to some embodiments of the present disclosure, the filter cover 13 of the present disclosure is specifically a PE film. The PE film protects the detection component 12 from water, dust, and dirt, and at the same time, by utilizing its air permeability and three-sided surrounding three-dimensional wrapping, the effective area for water molecules to enter is greatly increased.

[0115] Since the smaller the mesh number a of the PE film, the larger the effective area, but the easier it is for dust and water vapor to enter, it is necessary to control the aperture of the PE film. According to some embodiments of the present disclosure, the aperture of the PE film of the present disclosure is configured to prevent liquid water from entering under a negative pressure of 7 KPa.

[0116] Preferably, according to the working state of the cleaning device, the aperture of the PE film of the present disclosure is configured to prevent liquid water from entering under a negative pressure of 2.6 KPa.

[0117] According to some embodiments of the present disclosure, the aperture of the PE film of the present disclosure is less than or equal to 10 μm (micrometers). This kind of PE film not only effectively protects the detection component, but also ensures that the water vapor flow meets the sensing requirements, realizing sensitive humidity sensing.

[0118] According to the principle of constant total flow, Q 湿 = Q1 + Q2 = Q 整机 -Q 吸口 , where Q 湿To measure the flow rate at the outlet 1110 of the detection device, which contains dry air and water vapor, Q1 is the water vapor in the area near the inhaled carpet, and Q2 is the inhaled dry air; Q 整机 is the gas flow rate for the entire cleaning device; Q 吸口 is the gas flow rate at the air duct suction port position.

[0119] For example, in an embodiment of the present disclosure, the filtration resistance of the filter cover (PE film) is 2.6 KPa. Therefore, the pressure in the connecting pipeline needs to be > 2.6 KPa to enable the air flow to overcome the filtration resistance of the filter cover and enter the filter cover. In the entire cleaning device, the vacuum degree is related to the cross-sectional area S 整机 of the actual air duct. The pressure P at each position in the air duct cavity of the entire device is the same. Therefore, S 整机 = S 吸口风道 + S 连通管路 . Among them, S 吸口风道 is the cross-sectional area of the air duct at the suction port position, and S 连通管路 is the cross-sectional area of the air duct at the connecting pipeline position.

[0120] When the cleaning device works on a short-haired carpet, the hair of the carpet will not affect the cross-sectional area of the suction port air duct; when working on a long-haired carpet, the hair of the carpet will reduce the cross-sectional area of the suction port air duct. Whether working on a short-haired carpet or a long-haired carpet, as long as the hair length of the carpet is fixed, the cross-sectional area of the suction port air duct is fixed, that is, S 吸口风道 is unchanged (S 吸口风道 is slightly larger in the push-pull state than in the stationary state, so it can be ignored). Therefore, the larger S 连通管路 , the larger S 整机 , and the smaller the pressure P. In addition, the longer the carpet hair, the smaller S 吸口风道 , the greater the vacuum degree. Therefore, it is necessary to ensure its lower limit value. When working on a short-haired carpet, it is necessary to ensure that the vacuum degree value ≥ 2.6 KPa. Therefore, the inner diameter of the connecting pipeline needs to be as small as possible. The lower limit value of the inner diameter of the connecting pipeline should ensure that the connecting pipeline does not affect the vacuum degree at the suction port position. In an embodiment of the present disclosure, for example, the vacuum degree of the connecting pipeline can be ≤ 7 KPa.

[0121] In addition, considering the problem of doing work on water on the carpet (not being able to inhale water droplets), it is necessary to control the vacuum degree in the connecting pipeline not to be too large, that is, W - W 阻 < W 水 , so that the suction force of the connecting pipeline is not sufficient to inhale the water droplets. Among them, the suction work W in the connecting pipeline = P * Q 湿 , W 水 = ρgh, and W 阻 depends on the size of the pore diameter of the filter cover (PE film).

[0122] Figure 16Is the cross-sectional area S of the entire air duct in the cleaning equipment 整机 Influence on various parameters: Taking the above factors into consideration, it is more appropriate to select the aperture of the actual connecting pipe to be 3-5mm.

[0123] The detection device disclosed herein primarily operates in the drying mode of a cleaning machine, where the temperature between the machine and the carpet is high, the airflow is high, and environmental interference is significant. Under normal circumstances, temperature, airflow, and humidity are inversely proportional. The higher the temperature and the greater the airflow, the faster water molecules evaporate and are easily blown away. Consequently, the humidity will display a consistently low value, but the carpet will remain damp, failing to accurately indicate the carpet's humidity.

[0124] To this end, according to some embodiments of the present disclosure, there is a gap between the outer wall of the filter cover 13 and the inner wall of the lower shell 112.

[0125] When the detection device is working, under the action of negative pressure in the air duct, the air flow on the carpet surface is sucked into the lower shell 112 through the air inlet 1120 at the bottom of the lower shell 112, flows in the gap, and then enters the filter cover 13 from the holes densely distributed on the entire outer contour of the filter cover 13.

[0126] According to one embodiment of the present disclosure, the filter cover 13 is coaxially arranged with the lower shell 112 .

[0127] In one embodiment of the present disclosure, the lower shell 112 may be made of a heat-insulating material.

[0128] The outer peripheral surface of the filter cover 13 has zero contact with the lower shell 112, is distributed at equal distances, and is wrapped by the lower shell 112. The material of the lower shell 112 itself and the air medium in the gap are used to reduce the heat conduction and heat convection between the periphery of the filter cover 13 and the external air outlet heat, reduce external heat interference, and greatly improve the humidity sensing sensitivity.

[0129] According to some embodiments of the present disclosure, the air inlet 1120 is arranged at the bottom of the lower shell 112. The side wall of the lower shell 112 can block the interference of hot air, allowing water molecules to enter only from the bottom of the shell 11, thereby reducing the interference of the air output of external equipment.

[0130] The detection device disclosed herein operates in harsh environments and requires high durability. Based on the structure of existing detection devices, dirty water and dirt can accumulate between the lower housing 112 and the filter housing 13, resulting in poor air permeability of the filter housing 13. Accumulated dust or dirt can penetrate the filter housing and slowly corrode the detection component 12, causing short circuits, disconnection, or other damage, rendering the detection sensing function ineffective.

[0131] To this end, in an embodiment of the present disclosure, the lower housing 112 is configured to move towards the upper housing 111 when subjected to a first external force, and / or the lower housing 112 is configured to rotate relative to the filter cover 13 when subjected to a second external force.

[0132] In a specific embodiment of the present disclosure, under the action of the first external force, the lower housing 112 moves in the direction of the upper housing 111. Under the action of this movement, the dust and foreign objects accumulated between the lower housing 112 and the filter cover 13 will lose their adhesion and fall to the bottom of the lower housing 112 and then be discharged through the air inlet 1120. In addition, during the upward movement of the upper housing 112, the gap between it and the filter cover 13 will become smaller, thereby scraping off the dust or foreign objects attached to the surface of the filter cover 13.

[0133] In another specific embodiment of the present disclosure, under the action of the second external force, the lower housing 112 rotates relative to the filter cover 13. Under the action of this rotation, the dust and foreign objects accumulated between the lower housing 112 and the filter cover 13 will lose their adhesion and fall to the bottom of the lower housing 112 and then be discharged through the air inlet 1120. In addition, under the torque of this rotation, the dust or foreign objects attached to the surface of the filter cover 13 will also be scraped off.

[0134] In another specific embodiment of the present disclosure, under the action of the first external force and the second external force, the lower housing 112 reciprocates in the vertical direction relative to the body 10 and rotates reciprocally relative to the filter cover 13 or the body, which is more conducive to scraping off the dust or foreign objects attached between the filter cover 13 and the lower housing 112 and on the surface of the filter cover 13.

[0135] To this end, according to some embodiments of the present disclosure, refer to Figure 7 and Figure 8 , the inner wall of the lower housing 112 is provided with scraping strips 1122 distributed at intervals, and the scraping strips 1122 are configured to scrape off foreign objects on the filter cover 13 when the lower housing 112 moves.

[0136] According to some embodiments of the present disclosure, the scraping strips 1122 on the lower housing 112 extend axially so that when the lower housing 112 rotates relative to the body 10, the scraping strips 1122 scrape off foreign objects on the peripheral wall of the filter cover 13.

[0137] According to some embodiments of the present disclosure, the scraping strips 1122 of the lower housing 112 can also extend circumferentially so that when the lower housing 112 moves axially relative to the upper housing 111, the scraping strips 1122 scrape off foreign objects on the peripheral wall of the filter cover 13.

[0138] According to some embodiments of the present disclosure, the scraping strip 1122 of the lower housing 112 extends axially and circumferentially, so that when the lower housing 112 moves axially relative to the upper housing 111 and rotates relative to the machine body 10, the scraping strip 1122 can cooperate with the movement of the lower housing 112 to scrape off dust or foreign objects on the circumferential wall of the filter cover 13.

[0139] According to some embodiments of the present disclosure, continuing to combine Figure 2 , Figure 4 and Figure 5 , a through hole 101 for the lower housing 112 to pass through is provided on the side wall of the machine body 10 of the present disclosure. A stepped groove 100 is provided on the inner wall of the through hole 101, and a flange 1121 that extends radially outward and supports on the stepped groove is provided on the outer wall of the lower housing 112. The upper housing 111 covers the position of the through hole 101 and is configured to have a gap h between the end face of the lower housing 112 supported on the stepped groove 100.

[0140] When the detection device is not subject to any external force in any direction, under the action of its own gravity, the lower housing 112 is lapped on the stepped groove 100 of the machine body 10 through the flange 1121, and there is an axial gap h between the upper surface of the lower housing 112 and the bottom surface of the upper housing 111. Herein, the axial direction refers to the movement direction of the lower housing 112 relative to the machine body in the vertical direction.

[0141] When the detection device is subject to a first external force in the axial direction, the lower housing 112 moves upward axially relative to the upper housing 111 with respect to the machine body 10, and the flange 1121 of the lower housing 112 gradually moves away from the stepped groove 100 of the machine body 10 and moves towards the upper housing 111 until the lower housing 112 abuts against the upper housing 111.

[0142] When the detection device is subject to a second external force in the circumferential direction, the lower housing 112 can rotate relative to the machine body 10 and the filter cover 13, so that the scraping strip 1122 on the inner wall of the lower housing 112 scrapes off foreign objects on the circumferential wall of the filter cover 13. Herein, the circumferential direction refers to the direction around the axial direction.

[0143] The lower housing 112 is designed to be rotatable 360°, leaving a preset clearance amount h for up and down free play space, forming a dislocation with the filter cover 13, and having a scraping strip at the bottom. When the cleaning device is cleaning the carpet, during the process of pushing and pulling the cleaning device forward and backward, a torsion force will be formed between the carpet and the lower housing 112 to push the lower housing 112 to rotate. In addition, during the movement on the carpet, the hairs of the carpet will also push the lower housing to move up and down in the height direction, making it more difficult for dirt to accumulate. If, after a long time, serious dirt accumulation has formed, the user can also manually rotate and move the lower housing 112 up and down according to the actual effect to clean the accumulated dirt.

[0144] According to some embodiments of the present disclosure, the filter cover 13 of the present disclosure is connected to the upper housing 111, and the open end of the filter cover 13 communicates with the air outlet 1110 located on the upper housing 111; the air inlet 1120 is provided at the bottom of the lower housing 112.

[0145] Specifically, the air outlet 1120 of the present disclosure is a grille, and the grille protrudes from the inner wall of the lower housing 112.

[0146] When the lower housing 112 rotates relative to the body 10, the grille on the lower housing 112 can act as a squeegee to scrape off foreign objects on the bottom of the filter cover 13.

[0147] In the present disclosure, at least one of the first external force and the second external force that drives the lower housing 112 to move relative to the body 10 can be provided by the resistance of the housing when the cleaning device 1 walks on a working surface such as a carpet. Of course, at least one of the first external force and the second external force is provided by the user or other external auxiliary devices.

[0148] For example, in the above embodiment, refer to Figure 4 , in the initial state, under the action of its own gravity, the lower housing 112 is lapped on the step groove 100 of the body 10 through the flange 1121. When cleaning a shag carpet with the cleaning device of the present disclosure, since there is a certain interference amount between the detection device and the carpet, during the process of pushing the cleaning device to walk, the long hair of the carpet will push the lower housing 112 to move upward relative to the body 10. At the same time, when walking, a torsion force will be generated between the carpet and the lower housing 112 to push the lower housing 112 to rotate relative to the body or relative to the filter cover 13, so as to avoid the accumulation of dust or foreign objects between the lower housing 112 and the filter cover.

[0149] When the interference amount between the detection device and the carpet is too large and exceeds the moving stroke of the lower housing 112 itself, the lower housing 112 first moves upward to contact the upper housing 111, refer to Figure 5 . After that, the carpet will push the upper housing 111 to continue moving in the direction of the machine body. At this time, the lower housing 112 will push the entire upper housing 11 upward, refer to Figure 6 , to reduce the interference amount between the detection device and the carpet and reduce the resistance when the cleaning device moves. The moving stroke of the lower housing 112 itself should not be too large to avoid affecting the overall floating of the detection device. Preferably, the clearance h does not exceed 3 mm, and more preferably, the clearance h is 2.5 mm.

[0150] According to some embodiments of the present disclosure, the upper housing 111 and the lower housing 112 of the present disclosure are provided with an electro-actuating device, and the electro-actuating device is configured to provide a first external force, and the first external force is used to drive the lower housing 112 to move axially relative to the upper housing 111.

[0151] Specifically, refer toFigure 9 , the electro - actuating device includes an electromagnet 17 disposed on the upper housing 111 or the body 10, and a magnetic - attracting material for the electromagnet to adsorb after being energized is provided on the lower housing 112.

[0152] Among them, the magnetic - attracting material can be a metal material that is magnetically adsorbed and has no magnetism itself, or it can be a magnet itself. In addition, the magnetic - attracting material can also be additionally provided on the lower housing. For example, the iron ring 18 in the embodiments mentioned below, or the lower housing 112 can be partially or entirely made of ferromagnetic material.

[0153] When the electromagnet 17 is energized, the magnetic force it generates will adsorb the magnetic - attracting material, and then drive the lower housing 112 to move axially towards the inside of the body 10 relative to the upper housing 11. Conversely, when the electromagnet 17 is de - energized, the adsorption force on the adsorption material disappears, and the lower housing 112 moves axially towards the outside of the body 10 under the action of gravity to the initial position.

[0154] Furthermore, after the adsorption force of the electromagnet 17 disappears when it is de - energized, in order to prevent the lower housing 112 from getting stuck on the body 10, continue to refer to Figure 9 , according to some embodiments of the present disclosure, a second elastic device 19 for resetting the lower housing 112 is further provided between the upper housing 111 and the lower housing 112 of the present disclosure.

[0155] The second elastic device 19 is specifically a spring. It can be sleeved on the filter cover 13 and one end thereof can be abutted against the upper housing 111, and the other end is abutted against the iron ring 18 or other suitable positions on the lower housing 112. The iron ring 18 is fixedly connected to the lower housing 112, and the iron ring 18 is the adsorption material adsorbed by the electromagnet when it is energized.

[0156] When the electromagnet 17 is energized to adsorb the iron ring 18, the iron ring 18 drives the lower housing 112 to move axially towards the inside of the body 10 relative to the upper housing 111. Conversely, when the electromagnet 17 is de - energized, the adsorption force on the iron ring 18 disappears, and the lower housing 112 moves axially towards the outside of the body 10 under the action of its own weight and the second elastic device 19 to the initial position.

[0157] Of course, on the basis of the above disclosure, the electromagnet can also be disposed on the lower housing, and the magnetic - attracting material can be disposed on the upper housing or the body.

[0158] When the electromagnet is energized, it adsorbs the magnetic - attracting material, and then can also drive the lower housing to move axially towards the inside of the body relative to the upper housing. Conversely, when the electromagnet is de - energized, the adsorption force on the adsorption material disappears, and the lower housing moves axially towards the outside of the body under the action of gravity to the initial position.

[0159] In Figure 9In the illustrated embodiment, a gap h similar to that shown in Figure 2 , Figures 4 - 6 may also be provided between the lower housing 112 and the upper housing 111. In addition to being able to move up and down axially, the lower housing 112 can also rotate reciprocally relative to the filter cover 13 when subjected to a second external force.

[0160] According to some embodiments of the present disclosure, referring to Figure 11 , the upper housing 111 and the lower housing 112 of the present disclosure can be connected together by means of threads and are configured to move relative to each other by rotation of the upper housing 111 and the lower housing 112.

[0161] Specifically, the upper housing 111 has a second connecting sleeve 1112 extending into the lower housing 112. The outer peripheral wall of the second connecting sleeve 1112 is machined with an external thread, and the inner wall at the corresponding position on the upper housing 111 is machined with an internal thread for meshing with the external thread, and the internal thread and the external thread extend axially.

[0162] According to some other embodiments of the present disclosure, the external thread and the internal thread can also be arranged in reverse, that is, the inner wall of the connecting sleeve is machined with an internal thread, and the corresponding outer peripheral wall of the part of the lower housing 112 extending into the second connecting sleeve 1112 is machined with an external thread, and the internal thread and the external thread extend axially.

[0163] When a second external force acts on the lower housing 112, the lower housing 112 rotates circumferentially relative to the body 10 to clean up the accumulated dirt.

[0164] Furthermore, the thread sizes of the external thread and the internal thread can be different. Here, the thread size refers to the length of the thread along the axis of the detection device. In the same axial direction of the detection device, there is a gap between the thread on the upper housing 111 and the thread on the lower housing 112. Thus, when the detection device is subjected to a first external force, the lower housing 112 can move up and down axially. At the same time, when the detection device is subjected to a second external force, the lower housing 112 can rotate reciprocally relative to the filter cover 13. According to some embodiments of the present disclosure, referring to Figure 11 and Figure 12 , the upper housing 111 and the lower housing 112 of the present disclosure are detachably connected together by bolts (not shown in the figure).

[0165] Specifically, at least two positioning rods 1113 are provided on the upper housing 111, and two lower ear plates 1123 are provided at the corresponding positions of the lower housing.

[0166] When the upper housing 111 and the lower housing 112 are assembled, the user first docks the lower housing 112 and the upper housing 111 and locks them together by bolts or screws. When a large amount of dust or debris accumulates between the lower housing 1122 and the filter cover 13, or after the carpet is cleaned, the user can manually remove the lower housing 112 to clean foreign objects or dust..

[0167] As described above, the cleaning device of the present disclosure senses the airflow from the carpet through the detection component to determine whether it is necessary to continue drying the carpet.

[0168] In order to enable the user to clearly and definitely know the dryness of the carpet, according to an embodiment of the present disclosure, the cleaning device of the present disclosure further includes a display, and the display at least displays information for characterizing the data detected by the humidity detection component.

[0169] According to some embodiments of the present disclosure, the display of the present disclosure can directly display the humidity value detected by the humidity detection component.

[0170] According to some embodiments of the present disclosure, see Figure 13 , the display 20 of the present disclosure can also display the degree of dryness in the form of a progress bar.

[0171] Specifically, a progress bar 201 is set on the display 20. For example, referring to the view direction of Fig. 12, the left side of the progress bar 201 represents wetness, and the right side represents dryness; the more the progress bar shows towards the dry side, the drier the carpet is. When the carpet drying is completed, the progress bar is full and the dry icon lights up.

[0172] According to some embodiments of the present disclosure, see Figure 14 , the cleaning device of the present disclosure further includes a heating device 30, and the heating device 30 is arranged at a position between the main air outlet of the main motor in the air duct and the air duct outlet. The airflow in the air duct is configured to be blown towards the working surface to be dried through the air duct outlet after being heated by the heating device.

[0173] Specifically, the heating device 30 is arranged in the air duct and can be an electric heater. The airflow in the air duct is heated by the heating device 30 and finally blown towards the carpet surface through the air duct outlet to dry the carpet. The heating device 30 can specifically be a PTC heating component. The PTC heating component is also called a PTC heater and is composed of a PTC ceramic heating element and an aluminum tube. This type of PTC heating element has the advantages of small thermal resistance and high heat exchange efficiency, and is an automatic constant temperature and power-saving electric heater. The outstanding feature lies in the safety performance. In any application situation, it will not produce the surface "reddening" phenomenon of heaters such as electric heating tubes, thus causing safety hazards such as scalding and fire.

[0174] The PTC heating component can be set at a position adjacent to the air duct outlet to ensure that the heated air flow can directly blow towards the carpet through the air duct outlet, avoiding heat loss.

[0175] For the cleaning device of the present disclosure, the user first cleans the carpet through the floor brush component. After the carpet is cleaned, the drying mode is started to dry the carpet. A drying key is provided near the handle of the body 10. When drying is required, the user can press the drying key, and the cleaning device enters the drying mode. For ease of understanding, the working process of the cleaning device and the changes in temperature and humidity are described in detail below in conjunction with Figure 15 the detailed description of the working process of the cleaning device and the changes in temperature and humidity.

[0176] After the detection component of the cleaning device detects the air flow parameters, it can divide the temperature change curve into a descending area, a stable area, and an ascending area, and fit the humidity change curve into an ascending area and a descending area. In addition, the Hall sensor provided on the traveling wheels of the cleaning device can be used to obtain whether the cleaning device is in a stationary or moving state, and thus the movement process of the cleaning device can also be fitted into the curve as shown in Figure 15 the figure.

[0177] The cleaning device can divide the humidity condition of the carpet into the following situations through comprehensive judgment of the temperature and humidity change trends:

[0178] In the initial state, the cleaning device starts preheating. After the preheating is completed:

[0179] (1) The cleaning device starts to clean the carpet. During this process, since the floor brush component cleans the carpet after adding water, the temperature gradually decreases and the humidity gradually increases;

[0180] (2) After cleaning to a certain extent, the temperature continues to decrease and the humidity continues to increase (at this time, it is still in the cleaning stage);

[0181] (3) The temperature continues to decrease while the humidity reaches the maximum. At the end of the cleaning process in this stage, the peristaltic pump stops working and no longer sprays water, and the humidity reaches the maximum value;

[0182] (4) In this stage, the drying mode is turned on. Since hot air has been blowing towards the carpet during the cleaning stage, the temperature of the carpet is stable in this stage, while the humidity begins to decrease, indicating that the carpet starts to be dried;

[0183] (5) After the drying mode lasts for a certain period of time, due to the reduction of water vapor, the temperature rises slightly while the humidity decreases;

[0184] (6) In this stage, the temperature still rises slightly while the humidity continues to decrease.

[0185] Items (1), (2), and (3) in the temperature and humidity change description are the cleaning modes of the cleaning device. Through the reciprocating movement of the cleaning device on the carpet, continuous cleaning of a certain area of the carpet is achieved. Items (4), (5), and (6) in the temperature and humidity change description are the drying modes of the cleaning device. In the drying mode, the cleaning device no longer cleans the carpet, but only discharges high-temperature air to the carpet and, through the reciprocating movement of the cleaning device, makes the air duct outlet dry a certain carpet area. In the above embodiment, in the cleaning mode, the heating device 30 works and hot air comes out of the air duct outlet. Of course, the heating device 30 may not be started in the cleaning mode either.

[0186] Based on the above situation, in order to know the drying condition of the carpet, the present disclosure provides a set of experimental data in combination with Table 1 to exemplarily demonstrate the setting process of the carpet dryness.

[0187] Table 1

[0188]

[0189] Test method: According to the standard method of laboratory drying test

[0190] Test carpet: Use the standard carpet for laboratory test WET CE & carpet drying test

[0191] It can be understood that the change of the carpet dryness in the drying mode is related to the amount of water sprayed on the carpet in the cleaning mode. Refer to Table 1.

[0192] Experiment 1

[0193] In the cleaning mode, after the cleaning device sprays water four back-and-forth to wet the carpet, the water amount per unit area of the carpet is 135.1 g / m 3 . In the drying mode, the cleaning device moves eight back-and-forth to dry the carpet. At this time, the detected water amount per unit area of the carpet is 48.5 g / m 3 , and by the way of touching by hand to perceive, at this time the carpet reaches the dryness degree considered by the traditional perception method.

[0194] Experiment 2

[0195] In the cleaning mode, after the cleaning device sprays water four back-and-forth to wet the carpet, the water amount per unit area of the carpet is 140.6 g / m 3 . In the drying mode, the cleaning device moves eight back-and-forth in a certain area of the carpet to dry the carpet. At this time, the detected water amount per unit area of the carpet is 51.7 g / m 3 , and by the way of touching by hand to perceive, at this time the carpet reaches the dryness degree considered by the traditional perception method.

[0196] Experiment 3

[0197] In the cleaning mode, after the cleaning device sprays water back and forth four times to wet the carpet, the water amount per unit area of the carpet is 150.3 g / m 3 . In the drying mode, the cleaning device moves back and forth five times in a certain area of the carpet to dry the carpet. At this time, it is detected that the water amount per unit area of the carpet is 91.7 g / m 3 , and it is perceived by touching with hands. At this time, the carpet reaches the acceptable level considered by the traditional perception method.

[0198] Based on the above experiments, the present disclosure can quantify the data detected by the detection component. For example, after drying five times back and forth, it is considered that the dryness level is acceptable, and the quantified residual water amount value of the carpet at this time is about 90 g / ㎡. After drying eight times back and forth, it is considered that the carpet is dry, and the quantified residual water amount of the carpet is about 50 g / ㎡ at this time. In this way, an association is established between the detected humidity value and the dryness level of the carpet, so that the humidity value detected by the detection component can be displayed on the display screen 20 in the form of a progress bar, which is more intuitively presented to the user and improves the user experience.

[0199] Application Scenario 1

[0200] For the sake of clearer understanding, the working principle of the cleaning device of the present disclosure will be described in detail below with Figure 1 and Figure 2 , taking an application scenario as an example.

[0201] Start the main motor connected to the air duct so as to convey air flow into the air duct through the air duct suction port. The air flow is heated and raised in temperature by the heating device, and the heated high-temperature air flow is blown onto the carpet through the air duct discharge port to dry the wet carpet.

[0202] Meanwhile, a negative pressure is formed in the inner cavity 110 of the housing 11 of the detection device in the air flow in the air duct. Under the action of the pressure difference inside and outside the housing 11, the air flow in the dried area of the carpet is sucked into the inner cavity 110 of the housing 11 through the air inlet 1120 on the housing 11, and then enters the filter cover 13 after being filtered by the filter cover 13. The detection component 12 located in the filter cover 13 detects the humidity parameter of the air flow, and finally displays it on the display in the form of a humidity value or a drying progress bar, etc. The user can understand the drying situation of the carpet in real time through the display, without repeatedly bending down to judge the dryness of the carpet by body, which greatly improves the user experience and comfort.

[0203] Application Scenario 2

[0204] When the user uses the cleaning device to clean and dry a short - haired carpet, there is a gap between the lower housing of the detection device and the carpet on the short - haired carpet, and there is no interference or the interference amount is small between them. At this time, under the action of its own gravity and the first elastic device, the detection device is in the lowest position. At this time, the sensing distance of the detection component can be less than 8 mm, which can effectively ensure the sensitivity of humidity detection.

[0205] Application Scenario 3

[0206] When the user uses the cleaning device to clean and dry a long - haired or extra - long - haired carpet, interference is formed between the lower housing of the detection device and the carpet of this type. For example, in terms of the interference amount between them, when the cleaning device is moving, the carpet can push the lower housing to move the whole detection device towards the inside of the machine body, lifting the detection device upward, avoiding large moving resistance (the pushing and pulling force during product use) and scratching the bottom plate or the carpet caused by too large an interference amount.

[0207] The embodiments of the present disclosure have been described above. The above description is exemplary, not exhaustive, and is not limited to the disclosed embodiments. Many modifications and variations are obvious to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments. The choice of terms used herein is intended to best explain the principles of the embodiments, practical applications, or improvements to technologies in the market, or to enable other ordinary workers in the art to understand the embodiments disclosed herein. The scope of the present disclosure is defined by the appended claims.

Claims

1. A cleaning device, characterized in that, Comprising: A body (10); An air duct, which is arranged inside the body (10) and includes an air duct suction port and an air duct discharge port; A detection device, which includes a housing (11) and a detection component (12) located in the inner cavity (110) of the housing; the housing (11) has an air outlet (1110) and an air inlet (1120) facing the working surface to be processed; the air outlet (1110) of the housing (11) is communicated with the air duct; the housing (11) partially extends out of the body (10) and extends in the direction of the working surface to be processed; the housing (11) is integrally movably connected to the body (10) and is configured to move into the body (10) when encountering resistance; The air duct is configured to form a negative pressure in the inner cavity (110) of the housing, so that the air inlet (1120) of the housing (11) sucks the air flow in the area of the working surface to be processed; The detection component (12) is configured to detect the parameters of the air flow in the inner cavity (110) of the housing.

2. The cleaning device according to claim 1, characterized in that, The detection device includes a filter cover (13) arranged in the inner cavity (110) of the housing, and the detection component (12) is located inside the filter cover (13); the aperture on the filter cover (13) is configured to be waterproof and breathable.

3. The cleaning device according to claim 1, characterized in that The housing (11) is configured to move in the vertical direction relative to the body (10) through a guiding mechanism, and the cleaning device further includes a first elastic device (16) pre-pressed between the housing (11) and the body (10), and the housing (11) has a tendency to move out of the body (10) under the action of the first elastic device (16).

4. The cleaning device according to claim 1, characterized in that, The housing (11) includes a lower housing (112) with an open end, and an upper housing (111) located at the open end position of the lower housing (112), and the upper housing (111) is configured to cover the open end of the lower housing (112); there is a gap between the outer wall of the filter cover (13) and the inner wall of the lower housing (112).

5. The cleaning device according to claim 4, characterized in that, The lower housing (112) is configured to move towards the upper housing (111) when subjected to a first external force, and / or is configured to rotate relative to the filter cover (13) when subjected to a second external force.

6. The cleaning device according to claim 5, wherein: The inner wall of the lower housing (112) is provided with scraping strips (1122) distributed at intervals; the scraping strips (1122) are configured to scrape off foreign matters on the filter cover (13) when moving.

7. The cleaning device according to claim 6, wherein: The scraping strips (1122) extend in the axial direction or / and in the circumferential direction.

8. The cleaning device according to claim 5, characterized in that, A through hole (101) for the lower housing (112) to pass through is provided on the side wall of the body (10), a stepped groove (100) is provided on the inner wall of the through hole (101), and a flange (1121) that extends radially outward and supports on the stepped groove (100) is provided on the outer wall of the lower housing (112); the upper housing (111) covers the position of the through hole (101) and is configured to have a gap between the end face of the lower housing (112) that is supported on the stepped groove (100) through the flange (1121).

9. The cleaning device according to claim 5, wherein, The first external force and the second external force are at least the resistance suffered by the housing (11) when the cleaning device moves.

10. The cleaning device according to claim 5, wherein, An electro-actuating device is provided between the upper housing (111) and the lower housing (112), and the first external force is provided by the electro-actuating device.

11. The cleaning device according to claim 10, wherein, The electro-actuating device includes an electromagnet (17) provided on the upper housing (111) or the body (10), and a magnetic material for the electromagnet to adsorb after being electrified is provided on the lower housing (112); alternatively, the electro-actuating device includes an electromagnet (17) provided on the lower housing (112), and a magnetic material for the electromagnet to adsorb after being electrified is provided on the upper housing (111) or the body (10).

12. The cleaning device according to claim 11, wherein, A second elastic device (19) for resetting the lower housing (112) is further provided between the upper housing (111) and the lower housing (112).

13. The cleaning device according to claim 5, characterized in that, The upper housing (111) and the lower housing (112) are connected together by means of threads and are configured to move relative to each other by rotation.

14. The cleaning device according to claim 4, characterized in that, The filter cover (13) is connected to the upper housing (111), and the open end of the filter cover (13) is communicated with the air outlet (1110) located on the upper housing (111); the air inlet (1120) is provided at the bottom of the lower housing (112).

15. The cleaning device according to claim 14, characterized in that, The air inlet (1120) is a grille, and the grille protrudes from the inner wall of the lower housing (112).

16. The cleaning device according to claim 1, characterized in that, The cleaning device further includes a connecting pipeline, and the connecting pipeline communicates the air outlet (1110) of the housing (11) with the air duct; the pipe diameter of the connecting pipeline is between 3 mm and 5 mm.

17. The cleaning device according to claim 1, wherein The detection component (12) is a humidity detection component, and the humidity detection component is configured to detect the humidity parameter of the air flow in the inner cavity (110) of the housing.

18. The cleaning device according to any one of claims 1 to 17, characterized in that, The cleaning device is a carpet cleaning machine; the air flow sucked by the air duct suction port is configured to be blown from the air duct discharge port to the working surface to be treated.

19. A detection device, characterized in that, It includes a housing (11) and a detection component (12) located in the inner cavity (110) of the housing; the housing (11) has an air outlet (1110) and an air inlet (1120); the air outlet (1110) of the housing (11) is configured to communicate with the air duct in the machine body; the housing (11) partially extends out of the machine body (10) and extends in the direction of the working surface to be treated; the housing (11) is integrally movably connected to the machine body (10) and is configured to move into the machine body (10) when encountering resistance; the air inlet (1120) is configured to face the working surface to be treated; the detection component (12) is configured to detect the parameters of the air flow in the inner cavity (110) of the housing.

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