Air purifying device and failure processing method thereof

Abstract

The application provides an air purification device and a fault processing method thereof. A mounting port is arranged on a shell, and a plurality of filter modules are slidably inserted into the shell through the mounting port. An access door is mounted on the shell and used for controlling opening and closing of the mounting port. A linkage assembly is used for moving the plurality of filter modules outwards from the mounting port in sequence during opening of the access door, so that a single filter module can be conveniently taken out and disassembled, and the replacement efficiency of the filter modules can be improved, and the filter modules can be conveniently maintained, repaired and replaced, and the practicability of the device is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of air purification for ships, and particularly relates to an air purification device. BACKGROUND

[0002] The air purifier for ships is a device capable of filtering and purifying indoor air. It can remove dust particles, bacteria, viruses, harmful gases and other pollutants in the air through the built-in filtering system, thereby improving the air quality in the corresponding cabin and reducing the harm to the human body.

[0003] The filtering module of the existing air purification device is mostly fixed structure, thus leading to a relatively cumbersome process of installation and disassembly of the filtering module and relatively complex operation. Since the filtering module is often blocked by dust and other impurities over time during use, the filtering module needs to be frequently disassembled for cleaning to ensure the air filtering effect. However, the filtering module is inconvenient to disassemble, which is not convenient for maintenance, repair and replacement of the filter screen, thereby reducing the practicability of the device. SUMMARY

[0004] In view of the above problems, the present application is proposed to provide an air purification device and a fault handling method thereof which can overcome the above problems or at least partially solve the above problems, can solve the problem of difficulty in replacing the existing filtering module, and achieve the effects of improving the disassembly efficiency of the filtering module and improving the practicability of the device.

[0005] Specifically, the present application provides an air purification device, which comprises a shell, a plurality of filtering modules, an access door and a linkage assembly; the shell is provided with a mounting port; the plurality of filtering modules are slidingly inserted into the shell through the mounting port; the access door is installed on the shell and used to control the opening and closing of the mounting port; the linkage assembly is used to move one or more of the plurality of filtering modules outward from the mounting port during the opening of the access door.

[0006] Optionally, one vertical edge of the access door is rotatably installed on the shell; the linkage assembly comprises a push rod and a linkage rod; the push rod is arranged in the shell and one end thereof is hinged to the shell; the push rod abuts against the inner end edge of the filtering module; one end of the linkage rod is hinged to the other end of the push rod, and the other end thereof is hinged to the access door.

[0007] Optionally, each of the filtering modules is used to filter a specific target object.

[0008] Optionally, the shell is provided with an air inlet and an air outlet; the air outlet is provided with a flow distribution assembly.

[0009] Optionally, the air purification device further comprises a cam device;

[0010] The shell is provided with a plurality of downwardly opening first transverse chutes, a plurality of upwardly opening second transverse chutes, and a plurality of vertically oriented chutes opening towards the access door;

[0011] The vertically oriented chutes are located on the upper side of the push rod;

[0012] The upper end of each filter module is inserted into the first transverse chute and is spaced apart from the top wall of the first transverse chute; a resilient structure is provided between the upper end of each filter module and the top wall of the first transverse chute;

[0013] The lower end of each filter module is inserted into the second transverse chute, and each second transverse chute is spaced apart from the push rod;

[0014] One side of each filter module is inserted into the vertically oriented chute;

[0015] The cam device is configured to drive the filter module to rise so that the filter module is disengaged from the push rod.

[0016] Optionally, one vertical edge of the access door is rotatably mounted on the shell; the linkage assembly includes a push rod and a pull rope; the push rod is provided in the shell and is hingedly connected to the shell at one end; the push rod abuts the inner end edge of the filter module; one end of the pull rope is fixedly connected to the other end of the push rod, and the other end is fixedly connected to the access door.

[0017] Optionally, a resilient reset device is provided between one end of the push rod and the shell to facilitate rotation of the other end of the push rod away from the access door.

[0018] Optionally, the linkage assembly further includes a resilient positioning device, one end of which is provided on the access door and the other end of which is provided on the shell to facilitate the access door to close the mounting port in the initial position and to facilitate the access door to open the mounting port after the access door is opened by a predetermined angle.

[0019] Optionally, a plurality of rotating blocks are provided on the shell; the rotating blocks are rotatably provided and can be rotated to the front side of the mounting port so that the rotating blocks can abut the outer side of the access door when the access door closes the mounting port.

[0020] Optionally, the air purification device further includes an air exchange fan and a mobile power supply; the air exchange fan is provided in the shell; the mobile power supply is detachably mounted on the shell and is electrically connected to the air exchange fan.

[0021] Optionally, the shell outer side wall is provided with a groove; a fan switch is arranged in the groove; the fan switch is electrically connected with the ventilation fan, and is used for controlling the opening and closing of the ventilation fan.

[0022] Optionally, the ventilation fan is a cross-flow fan.

[0023] Optionally, the air purification device further comprises:

[0024] A bypass air duct is arranged in the shell, and the bypass air duct is communicated with the space between each filter module and the corresponding elastic structure.

[0025] A differential pressure detection device is arranged in the bypass air duct, and is configured to detect the differential pressure between two ends of the bypass air duct.

[0026] The application further provides a fault processing method for any one of the air purification devices, which comprises:

[0027] determining whether the filter device fails;

[0028] if yes, obtaining the filter module that does not fail;

[0029] controlling the cam device to drive the filter module that does not fail to rise, so that the filter module that does not fail is out of contact with the push rod.

[0030] Optionally, in the fault processing method, before the control of the cam device to drive the filter module that does not fail to rise, so that the filter module that does not fail is out of contact with the push rod, the method further comprises:

[0031] when the filter device fails, detecting whether there is a terminal device in a preset range centered on the air purification device;

[0032] if yes, sending a failure maintenance request to the terminal device.

[0033] Optionally, the determination of whether the filter device fails comprises:

[0034] obtaining the differential pressure by using the differential pressure detection device in the bypass air duct;

[0035] determining whether the filter device fails according to the differential pressure;

[0036] the obtaining of the filter module that does not fail comprises:

[0037] controlling the cam device to drive the filter modules to rise in sequence, so that the filter modules cut off the bypass air duct in sequence;

[0038] When each of the filter modules cuts off the bypass air duct, the differential pressure detection device is used to obtain a differential pressure, and the differential pressure is used to determine whether the filter module has failed.

[0039] The air purification device and the fault processing method thereof, the linkage assembly connects the maintenance door and the plurality of filter modules, so that the maintenance door drives the filter modules to move outward during the opening process. Since the plurality of filter modules move outward in sequence, there is a difference in the outward moving distance between the plurality of filter modules after the maintenance door is completely opened, so that the length of each filter module extending outward from the installation opening to the shell is different, thereby facilitating the taking and dismounting of the single filter module, and further improving the replacement efficiency of the filter module. At the same time, it is convenient to maintain, repair and replace the filter module, thereby increasing the practicability of the device. Moreover, since the dismounting space of the filter module closer to the door is smaller, the filter module closer to the door extends farther, which is convenient for taking out the filter module.

[0040] The above and other objects, advantages and features of the present application will become more apparent from the following detailed description of some embodiments thereof, when taken in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF DRAWINGS

[0041] Some embodiments of the present application will be described in detail with reference to the drawings, wherein the same or like reference numerals that denote the same or like components or parts are used throughout the several views. As those skilled in the art will understand, the drawings are not necessarily to scale. In the drawings:

[0042] Figure 1 is a schematic structural view of an air purification device according to an embodiment of the present application;

[0043] Figure 2 is a schematic internal structural view of an air purification device according to an embodiment of the present application;

[0044] Figure 3 is a schematic structural view of a maintenance door opening state of an air purification device according to an embodiment of the present application;

[0045] Figure 4 is a schematic structural view of the inside of a shell of an air purification device according to an embodiment of the present application. DETAILED DESCRIPTION

[0046] Reference will now be made to Figures 1 to 4The air purification device and the fault processing method thereof according to the embodiments of the present application will be described. In the description of the embodiments, it is to be understood that the terms "first", "second", "third" and the like are used merely to describe different features, and do not imply or connote relative importance or a specific order of the features. Thus, a feature defined with "first", "second" or "third" can explicitly or implicitly include at least one of the feature, i.e. one or more of the feature. In the description of the present application, the term "plurality" means at least two, for example, two, three, etc., unless otherwise specifically limited. When a certain feature "includes" or "comprises" a certain or certain features, unless otherwise specifically described, it indicates that other features are not excluded and can further include other features.

[0047] Unless otherwise explicitly specified and limited, the terms "set", "mounted", "connected", "linked", "fixed", "coupled" and the like should be understood in a broad sense, for example, can be fixed connection, can also be detachable connection, or integral; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through an intermediate medium, can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise explicitly limited. Those skilled in the art should be able to understand the specific meaning of the above terms in the present application according to the specific circumstances.

[0048] In addition, in the description of the embodiments, the first feature "above" or "below" the second feature can include that the first and second features are in direct contact, or can include that the first and second features are not in direct contact but are in contact through another feature between them. That is, in the description of the embodiments, the first feature "above", "over" and "on" the second feature includes that the first feature is directly above and obliquely above the second feature, or only indicates that the first feature is higher in horizontal height than the second feature. The first feature "below", "under" or "under" the second feature can be that the first feature is directly below or obliquely below the second feature, or only indicates that the first feature is lower in horizontal height than the second feature.

[0049] In the description of the embodiments, the description with reference to the terms "one embodiment", "some embodiments", "exemplary embodiment", "example", "specific example", or "some examples" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the exemplary description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the described specific features, structures, materials or characteristics can be combined in any one or more embodiments or examples in a suitable manner.

[0050] Figure 1 is a schematic structural diagram of the air purification device, as Figure 1 shown, and reference will be made toFigures 2 to 4 The embodiment of the present application provides an air purification device, which comprises a shell 100, a filtering device, an access door 320 and a linkage assembly. The shell 100 is provided with a mounting port. The filtering device comprises a plurality of filtering modules 200. The plurality of filtering modules 200 are slidably inserted into the shell 100 through the mounting port.

[0051] The access door 320 is installed on the shell 100 and used for controlling the opening and closing of the mounting port. The linkage assembly is used for moving one or more of the plurality of filtering modules 200 outwards from the mounting port during the opening of the access door 320, and making the plurality of filtering modules 200 move out of the mounting port by different distances.

[0052] Specifically, the access door 320 and the mounting port are in sealing cooperation, so as to ensure the sealing property of the shell 100. Further, when the filtering modules 200 are in a working state, the filtering modules 200 are completely installed in the shell 100, and the outer end edges of the plurality of filtering modules 200 are coplanar. The linkage assembly connects the access door 320 and the plurality of filtering modules 200, so as to drive one or more of the filtering modules 200 to move outwards in sequence during the opening of the access door 320.

[0053] Further, the plurality of filtering modules 200 can be moved outwards in sequence after the access door 320 is completely opened, and the plurality of filtering modules 200 move outwards by different distances, so that the lengths of the plurality of filtering modules 200 extending out of the mounting port are different, so that the single filtering module 200 can be conveniently taken out and disassembled, and the replacement efficiency of the filtering modules 200 is improved, and the maintenance, repair and replacement of the filtering modules 200 are facilitated, and the practicability of the device is improved. Alternatively, one filtering module 200 can be moved out of the mounting port according to requirements, for example, when one or more filtering modules 200 need to be moved out, the one or more filtering modules 200 can be moved out, and the filtering modules 200 that do not need to be moved out are not moved out.

[0054] During work, the plurality of filtering modules 200 are inserted into the shell 100 from the mounting port in sequence, and then the access door 320 is closed. When the filtering modules 200 need to be replaced, the access door 320 is opened. During the opening of the access door 320, the access door 320 drives the plurality of filtering modules 200 to move outwards from the mounting port in sequence through the linkage assembly. When the access door 320 is completely opened, the plurality of filtering modules 200 are arranged in a stepped manner in sequence, and then the filtering modules 200 that need to be replaced are taken out and replaced.

[0055] In the embodiment, when the access door 320 is closed, the inner surface of the access door 320 abuts against the outer end of the filter module 200 to prevent the filter module 200 from shaking, thereby improving the stability of the filter module 200. Further, the inner surface of the access door 320 is paved with rubber.

[0056] In some embodiments of the present application, as shown in Figures 1 to 3 A side vertical edge of the access door 320 is rotatably mounted on the housing 100. The linkage assembly includes a push rod 410 and a linkage rod 420. The push rod 410 is arranged in the housing 100 and one end thereof is hingedly connected to the housing 100. The push rod 410 abuts against the inner end edge of the filter module 200. One end of the linkage rod 420 is hingedly connected to the other end of the push rod 410, and the other end thereof is hingedly connected to the access door 320.

[0057] Specifically, the push rod 410 is located between the inner side wall of the housing 100 and the inner end vertical edge of the filter module 200. Since one end of the push rod 410 is hingedly connected to the inner side wall of the housing 100, when the other end of the push rod 410 moves outward, the push rod 410 gradually moves away from the inner side wall of the housing 100 from one end to the other end, so that the push rod 410 gradually tilts toward the outward mounting opening. That is, when the other end of the push rod 410 moves outward, the push rod 410 drives the plurality of filter modules 200 to slide outward in sequence, and the distance of the outward movement of the plurality of filter modules 200 is positively correlated with the distance between the filter module 200 and the other end of the push rod 410.

[0058] Further, the access door 320 is hingedly connected to the housing 100 through the hinge plate 330, so that the access door 320 can rotate about the vertical edge of one side as an axis. Further, when the access door 320 rotates outward to open, the linkage rod 420 moves outward and extends out of the mounting opening, thereby driving the push rod 410 to rotate outward. Further, when the access door 320 rotates inward to close, the linkage rod 420 moves inward and extends into the mounting opening, thereby driving the push rod 410 to rotate inward.

[0059] In the embodiment, the inner side wall of the housing 100 is provided with a first hinge seat 411, one end of the push rod 410 is hingedly connected to the first hinge seat 411, and the inner surface of the access door 320 is provided with a second hinge seat 321, the other end of the linkage rod 420 is hingedly connected to the second hinge seat 321.

[0060] In some embodiments of the present application, the side vertical edge of the access door 320 is rotatably mounted on the housing 100, and the linkage assembly includes a push rod 410 and a pull rope. The push rod 410 is arranged in the housing 100, and one end of the push rod 410 is hingedly connected to the housing 100. The other end of the push rod 410 abuts against the inner end edge of the filter module 200. One end of the pull rope is fixedly connected to the other end of the push rod 410, and the other end of the pull rope is fixedly connected to the access door 320. In operation, when the access door 320 is opened, the access door 320 drives the other end of the push rod 410 to move outward through the pull rope. Specifically, a guide wheel is arranged in the housing 100, and the pull rope is wound around the guide wheel to keep the pull rope in tension.

[0061] In some embodiments of the present application, in order to return the push rod 410 to the initial position inside the housing, a resilient return device is arranged between one end of the push rod 410 and the housing 100 to facilitate the rotation of the other end of the push rod 410 away from the access door 320. The resilient return device is preferably a torsion spring or a tension spring, which facilitates the movement of the other end of the push rod 410 towards the inside of the housing and facilitates the closing of the access door 320.

[0062] In some embodiments of the present application, the linkage assembly further includes a resilient positioning device. One end of the resilient positioning device is arranged on the access door 320, and the other end of the resilient positioning device is arranged on the housing 100 to facilitate the closing of the access door 320 to the mounting opening in the initial position and facilitate the opening of the access door 320 to the mounting opening after the access door 320 is opened by a preset angle. Further, the resilient positioning device can be a tension spring. One end of the tension spring is rotatably connected to the housing 100, and the other end of the tension spring is rotatably connected to the access door 320. In the initial position, the tension spring facilitates the closing of the access door 320 to the mounting opening. As the access door 320 is gradually opened, the rotation direction of the access door 320 becomes opposite to the contraction direction of the tension spring, the tension spring gradually elongates, and the two ends of the tension spring move to positions on both sides of the rotation shaft of the access door 320. When the access door 320 is continuously opened, the tension spring moves from one side of the rotation shaft of the access door 320 to the other side of the rotation shaft, the rotation direction of the access door 320 becomes consistent with the contraction direction of the tension spring, the contraction of the tension spring facilitates the continuous opening of the access door 320, and prevents the closing of the access door 320. In this embodiment, through the change in the relationship between the contraction direction of the tension spring and the rotation direction of the access door 320, not only can the access door 320 be closed to the mounting opening in the initial position, but also the access door 320 can be prevented from being randomly closed after the access door 320 is fully opened.

[0063] In some embodiments of the present application, each filter module 200 is configured to filter a specific target object, that is, the main filtering object of one filter module 200 is different from that of another filter module 200. That is, the configuration of each filter module 200 for filtering a specific target object can filter various impurities in the air to purify the air. Specifically, the configuration of multiple filter modules 200 is different from that of an integrated single filter module 200 filtering multiple target objects at a time, thereby preventing the filter module 200 from being overloaded when filtering, thereby increasing the effective filtering time of the filter module 200 and improving the efficiency of filtering air.

[0064] In the present embodiment, the number of filter modules 200 is at least three, and the three filter modules 200 are respectively a first filter module 200, a second filter module 200, and a third filter module 200. The first filter module 200 is configured to filter a first specific target object. The second filter module 200 is configured to filter a second specific target object. The third filter module 200 is configured to filter a third specific target object. Specifically, the first specific target object is dust particles; the second specific target object is oil stains; and the third specific target object is odor molecules.

[0065] In some embodiments of the present application, as shown in Figure 1 and Figure 2 The housing 100 is provided with an air inlet 110 and an air outlet 140. The air outlet 140 is provided with a flow distribution assembly. Specifically, the flow distribution assembly can diffuse the purified air discharged outwardly from the air outlet 140 to the surrounding, thereby quickly improving the surrounding air quality. Further, the flow distribution assembly is a back-shaped flow distributor.

[0066] In some embodiments of the present application, as shown in Figure 4 The air purifying device further comprises a cam device 400, which is connected with the multiple filter modules 200 to drive the multiple filter modules 200 to vibrate. For example, the cam device 400 is configured to drive the multiple filter modules 200 to vibrate once every predetermined time.

[0067] Specifically, the vibration of the filter module 200 is a fixed time period, and the filter module 200 continuously vibrates to shake off the filter object on the filter module 200 within the time period. Further, the configuration of the vibration assembly driving the filter module 200 to vibrate can shake off the specific target object on the filter module 200, thereby completing the cleaning operation of the filter module 200, and further enabling the filter module 200 to maintain a good filtering state for filtering work, thereby improving the filtering efficiency and prolonging the service life of the filter module 200.

[0068] Further, the preset time is the working time of the air purification device, so that the air purification device starts the vibration assembly every preset time, so that the filter module 200 maintains the best purification efficiency.

[0069] In some preferred embodiments of the present application, the cam device 400 can also be started according to needs.

[0070] Further, in some embodiments of the present application, the cam device 400 can be multiple, each cam device 400 is configured to drive one filter module 200 to lift to drive the filter module 200 to vibrate. Each cam device 400 includes a rotating shaft and a cam, the rotating shaft is horizontally arranged, and the cam is installed on the rotating shaft, and each rotating shaft can be connected with a driving motor. In some alternative embodiments of the present application, the driving motor can be one, and the driving motor drives multiple rotating shafts to rotate through a transmission device. The transmission device can include multiple clutch mechanisms, and the clutch mechanisms can connect the rotating shafts that need to rotate with the driving motor for transmission, and when the rotating shafts do not need to rotate, the transmission between the corresponding rotating shafts and the driving motor is disconnected.

[0071] In some embodiments of the present application, as shown in Figure 4 The housing 100 is provided with multiple first horizontal sliding grooves 150 with downward openings, multiple second horizontal sliding grooves 160 with upward openings, and multiple vertical sliding grooves 170 with openings towards the maintenance door 320.

[0072] The vertical sliding groove 170 is on the upper side of the push rod 410. The upper end of each filter module 200 is inserted into the first horizontal sliding groove 150, and is spaced apart from the top wall of the first horizontal sliding groove 150. The lower end of each filter module 200 is inserted into the second horizontal sliding groove 160. Each second horizontal sliding groove 160 is spaced apart from the push rod 410 to prevent the second horizontal sliding groove 160 from blocking the rotation of the push rod 410. One side of each filter module 200 is inserted into the vertical sliding groove 170, and the vertical sliding groove 170 is used to guide the lifting of the filter module 200. When the cam device 400 drives the filter module 200 to rise, the filter module 200 can be separated from the push rod 410, and after being separated, the push rod 410 only needs to push out the filter module 200 that needs to be pushed out, and the filter module 200 that does not need to be pushed out can be separated from the push rod by the cam device 400. The cam device 400 is installed on the lower side of the second horizontal sliding groove 160, so as not to block the rotation of the push rod 410.

[0073] The arrangement of the sliding grooves can increase the stability of the filter module 200 during the disassembly and assembly process, and also facilitates the disassembly and assembly of the filter module 200.

[0074] In some embodiments of the present application, the cam device 400 has an abrupt profile, which allows the filter module 200 to quickly drop for vibration after the filter module 200 is lifted to the highest position. An elastic structure 180 is arranged between the upper end of each filter module 200 and the top wall of the first transverse chute 150. The cam device 400 drives the filter module 200 to lift a distance and then contacts and presses the elastic structure 180. The elastic structure promotes the filter module 200 to quickly drop after the filter module 200 is lifted to the highest position, thereby improving the vibration effect of the filter module 200. The elastic structure 180 can be an elastic pad.

[0075] In some embodiments of the present application, as shown in Figure 1 The housing 100 is provided with a plurality of rotating blocks 310. The rotating blocks 310 are rotatably arranged and can be rotated to the front side of the installation opening so as to abut against the outer side of the access door 320 when the access door 320 closes the installation opening.

[0076] Specifically, the rotating blocks 310 are provided with rotating shafts and are rotatably arranged on the housing 100 through the rotating shafts. Further, the rotating shafts are fixed to the housing 100. The surface of the rotating blocks 310 that can abut against the access door 320 is an abutting surface, and the abutting surface is provided with rubber. The abutting surface is in interference fit with the access door 320, thereby increasing the abutting force of the rotating blocks 310 on the access door 320 and preventing the access door 320 from shaking, and increasing the stability of the access door 320 in the closed state. Further, the rotating blocks 310 are provided with flat head portions, which can be conveniently operated by hand to rotate the rotating blocks 310.

[0077] In some embodiments of the present application, as shown in Figure 1 and Figure 3 The air purification device further comprises an air exchange fan 510 and a mobile power supply 520. The air exchange fan 510 is arranged in the housing 100, and the mobile power supply 520 is detachably arranged in the housing 100 and electrically connected with the air exchange fan 510.

[0078] Specifically, the mobile power supply 520 can facilitate the movement of the air purification device, thereby avoiding the restriction of the line and improving the use range. Further, the mobile power supply 520 can be detachably arranged to facilitate the replacement of the device.

[0079] In some embodiments, the air exchange fan 510 is a cross-flow fan. The cross-flow fan has flexible installation, and thus requires less installation space than other fans. Therefore, the use of the cross-flow fan can save a large amount of installation space in the housing 100, and can enable the air purification device to function in a limited small installation space, thereby reducing the production volume of the housing 100. The reduction in the volume of the housing 100 can meet the requirement of lightweight design of the device, so as to increase the installation flexibility of the air purification device and thus increase the use range of the air purification device.

[0080] In some embodiments of the present application, as shown in Figure 1 and Figure 2 The housing 100 has a recess 120 on the outer side wall, and a fan switch 130 is arranged in the recess 120. The fan switch 130 is electrically connected to the air exchange fan 510, and is used to control the opening and closing of the air exchange fan 510. Specifically, the arrangement of the fan switch 130 in the recess 120 can enable the fan switch 130 to be in a hidden state, thereby preventing the fan switch 130 from being accidentally touched.

[0081] In some embodiments of the present application, each filter module 200 includes a mounting frame and a filter portion arranged in the mounting frame. The mounting frame can improve the stability of the installation of the filter module 200 in the housing, thereby preventing the filter module 200 from being shaken by the airflow and thus avoiding damage to the filter module 200. Further, the push rod 410 abuts against the vertical edge of the inner end of the mounting frame. Each mounting frame is provided with a handle on one side of the mounting port, and the handle is used to facilitate the extraction and insertion of the mounting frame.

[0082] In some embodiments of the present application, as shown in Figure 4 The air purification device further includes a bypass air duct 600 and a differential pressure detection device 610. The bypass air duct 600 is arranged in the housing 100, and the bypass air duct 600 communicates the space between each filter module 200 and the corresponding elastic structure 180. The differential pressure detection device 610 is arranged in the bypass air duct 600, and is configured to detect the differential pressure between the two ends of the bypass air duct 600. In operation, as the cam device 400 operates, the filter module 200 continuously extends into the bypass air duct 600, and the differential pressure detection device 610 can detect the differential pressure between the two ends of the bypass air duct 600. When the differential pressure reaches a preset differential value, it indicates that at least one filter module 200 needs to be replaced, or that the filter module 200 is faulty or the filter device is faulty. Then, the filter module 200 is controlled to enter the bypass air duct 600 in a preset order by the cam device 400, and then the differential pressure is detected to determine which filter module 200 is faulty and needs to be replaced.

[0083] In some embodiments of the present application, the present application further provides a fault processing method for the air purification device in any of the above embodiments, which comprises:

[0084] determining whether the filter device is malfunctioning;

[0085] if so, obtaining a filter module 200 that is not malfunctioning;

[0086] controlling the cam device 400 to drive the filter module 200 that is not malfunctioning to rise, so that the filter module 200 that is not malfunctioning is out of contact with the push rod.

[0087] In the embodiments of the present application, by detecting whether the filter device is malfunctioning, if malfunctioning, the corresponding filter module 200 is replaced, thereby improving the efficiency of the air purification device.

[0088] In some embodiments of the present application, before the cam device 400 drives the filter module 200 that is not malfunctioning to rise, so that the filter module 200 that is not malfunctioning is out of contact with the push rod, the malfunction handling method further comprises:

[0089] when the filter device malfunctions, detecting whether there is a terminal device in a preset range centered on the air purification device;

[0090] if so, sending a malfunction maintenance request to the terminal device.

[0091] The terminal device can be a mobile phone, tablet computer or the like provided for maintenance personnel. When the filter device detects that there is a terminal device nearby, it indicates that there is a maintenance personnel nearby. At this time, maintenance information can be sent to the maintenance personnel. At the same time, the filter module 200 that does not need to be replaced is out of contact with the push rod. In this way, when the maintenance personnel opens the maintenance door, the filter module 200 that needs to be replaced is taken out, thereby facilitating the replacement of the filter module 200.

[0092] In some embodiments of the present application, determining whether the filter device is malfunctioning comprises:

[0093] obtaining the pressure difference by using the pressure difference detection device 610 in the bypass air duct 600;

[0094] determining whether the filter device is malfunctioning according to the pressure difference.

[0095] Further, in some embodiments of the present application, obtaining the filter module 200 that is not malfunctioning comprises:

[0096] controlling the cam device 400 to drive the filter modules 200 to rise in sequence, so that the filter modules 200 cut off the bypass air duct 600 in sequence;

[0097] when each filter module 200 cuts off the bypass air duct 600, obtaining the pressure difference by using the pressure difference detection device 610; and determining whether the filter module 200 is malfunctioning according to the pressure difference.

[0098] In operation, as the cam device 400 operates, the filter modules 200 are constantly extended into the bypass air duct 600, and the differential pressure detection device 610 can detect the differential pressure between the two ends of the bypass air duct 600. When the differential pressure reaches a preset differential value, it indicates that at least one filter module 200 needs to be replaced, or that the filter module 200 is faulty or the filter device is faulty. Then, the cam device 400 is controlled to make the filter modules 200 enter the bypass air duct 600 in a preset order, and then the differential pressure is detected to determine which filter modules 200 are faulty and need to be replaced. In this embodiment, the cam device 400, the bypass air duct 600, and the differential pressure detection device 610 can accurately determine which filter module 200 is faulty and needs to be replaced, and the acquisition is simple and accurate.

[0099] Moreover, in the fault processing method of the embodiment of the present application, multiple differential pressure detection devices 610 are not required, and the airflow through the filter modules 200 behind can be prevented from being affected by the relatively large wind resistance of the filter modules 200 in front due to faults, that is, a corresponding differential pressure detection device 610 is arranged for each filter module 200. If the filter module 200 on the upstream side is faulty, the filter modules 200 on the downstream side are basically not passed through by airflow, and the corresponding differential pressure detection device 610 for the filter modules 200 on the downstream side is not accurate, so it is unclear whether the filter modules 200 on the downstream side are faulty, that is, the fault detection of the filter modules 200 on the downstream side is affected.

[0100] At this point, those skilled in the art should recognize that although the present application has been fully shown and described in detail with reference to a plurality of exemplary embodiments, many other variants or modifications in accordance with the principles of the present application can be directly determined or deduced from the disclosure of the present application without departing from the spirit and scope of the present application. Therefore, the scope of the present application should be understood and recognized as covering all these other variants or modifications.

Claims

1. An air purification device, characterized by, The air purifying device comprises: a housing, wherein a mounting opening is arranged on the housing; a filtering device, wherein a plurality of filtering modules are slidably inserted into the housing through the mounting opening; an access door, which is arranged on the housing and used to control the opening and closing of the mounting opening; a linkage assembly, which is used to move one or more of the plurality of filtering modules out of the mounting opening during the opening of the access door, and to make the distance of the plurality of filtering modules moved out of the mounting opening different; after the access door is completely opened, the plurality of filtering modules are arranged in a step-by-step manner, and the filtering module closer to the access door is farther extended.

2. The air purifying device according to claim 1, wherein a vertical edge of the access door is rotatably arranged on the housing; the linkage assembly comprises: a push rod, which is arranged in the housing and hinged at one end to the housing; the push rod is in abutment with the inner end edge of the filtering module; a linkage rod, which is hinged at one end to the other end of the push rod and hinged at the other end to the access door.

3. The air purifying device according to claim 1, wherein a vertical edge of the access door is rotatably arranged on the housing; the linkage assembly comprises: a push rod, which is arranged in the housing and hinged at one end to the housing; the push rod is in abutment with the inner end edge of the filtering module; a pull rope, which is fixed at one end to the other end of the push rod and fixed at the other end to the access door.

4. The air purification device according to claim 2 or 3, characterized in that a cam device is further included; a plurality of first horizontal slide grooves with downward openings, a plurality of second horizontal slide grooves with upward openings, and a plurality of vertical slide grooves with openings towards the access door are arranged in the housing; the vertical slide grooves are on the upper side of the push rod; the upper end of each filtering module is inserted into the first horizontal slide groove and spaced from the top wall of the first horizontal slide groove; a resilient structure is arranged between the upper end of each filtering module and the top wall of the first horizontal slide groove; the lower end of each filtering module is inserted into the second horizontal slide groove, and each second horizontal slide groove is spaced from the push rod; one side of each filtering module is inserted into the vertical slide groove; the cam device is configured to drive the filtering module to rise so that the filtering module is out of contact with the push rod.

5. The air purification device of claim 1, wherein, further comprising: an air exchange fan arranged in the housing; a mobile power supply which is detachably arranged in the housing and electrically connected with the air exchange fan.

6. The air purification device of claim 5, wherein, further comprising: a groove is arranged on the outer wall of the housing; an air fan switch is arranged in the groove; the air fan switch is electrically connected with the air exchange fan and used to control the opening and closing of the air exchange fan.

7. The air purification device of claim 1, wherein, further comprising: a plurality of rotating blocks are arranged on the housing; the rotating blocks are rotatably arranged, and the rotating blocks can be rotated to the front side of the mounting opening so that the rotating blocks can be in abutment with the outer side of the access door when the access door closes the mounting opening.

8. The air purification device of claim 1, wherein, further comprising: An air inlet and an air outlet are arranged on the shell; and a flow distribution assembly is arranged on the air outlet. 9.A failure handling method for the air purification device according to any one of claims 1 to 8, characterized in that, The linkage assembly comprises a push rod arranged in the shell and hinged to the shell at one end; and the push rod is in abutment with the inner end edge of the filter module; The air purification device further comprises a cam device configured to drive the filter module to rise so as to disengage the filter module from the push rod; The failure handling method comprises: judging whether the filter device has failed; if so, obtaining the filter module that has not failed; controlling the cam device to drive the filter module that has not failed to rise so as to disengage the filter module that has not failed from the push rod.

10. The failure handling method according to claim 9, wherein Before the step of controlling the cam device to drive the filter module that has not failed to rise so as to disengage the filter module that has not failed from the push rod, the method further comprises: detecting whether there is a terminal device within a preset range centered on the air purification device when the filter device has failed; if so, sending a failure maintenance request to the terminal device.

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