Door body, door body components and air purifier

Abstract

The present invention relates to the technical field of air purification equipment, and in particular to a door body, a door body assembly and an air purifier. The door body comprises: a door body (51) and a support component arranged on the inner side of the door body (51), the support component being suitable for supporting a plurality of dust collecting modules (1). The technical solution of the present invention only requires opening the door body once and closing the door body once to disassemble and assemble the plurality of dust collecting modules when cleaning the dust collecting modules, and the disassembly and assembly efficiency is high.

Description

Technical Field

[0001] The present invention relates to the technical field of air purification equipment, and in particular to a door body, a door body assembly and an air purifier. Background Art

[0002] At present, air purifiers use high-voltage electrostatic fields to kill bacteria, viruses, molds, and spores in the air. Specifically, the high-voltage electrostatic discharge electrode of the air purifier causes negative charges to adhere to the surface of particles and then accumulate on the dust collecting plate. At the same time, the high energy generated by the discharge electrode can directly kill the organizational structure of viruses and bacteria, thereby achieving the purpose of sterilization and disinfection. Electrostatic air purifiers will become more mainstream in the future.

[0003] The dust collection module is an important component for sterilization and dust collection. The main component for achieving air purification is the collecting electrode (dust collecting plate) used in combination with the generating electrode (tungsten filament electrode). In actual use, a large amount of dust, bacteria, etc. will be attached to the surface of the dust collecting plate after long-term use. In order to ensure the air purification efficiency, the dust on the surface of the dust collecting plate needs to be cleaned regularly.

[0004] In the prior art, the dust collecting module is installed in a drawer-type structure. When cleaning, the drawer is opened and the dust collecting module in the drawer is removed. After the dust collecting module is cleaned, it is installed in the drawer. When there are multiple dust collecting modules, each dust collecting module is configured with a drawer. When cleaning, the drawer needs to be opened and closed multiple times to disassemble and assemble multiple dust collecting modules, which has low disassembly and assembly efficiency. Summary of the invention

[0005] The main purpose of the present invention is to provide a door body, a door body assembly and an air purifier to solve the problem in the prior art that each dust collection module is equipped with a drawer and the drawer needs to be opened and closed multiple times when cleaning the dust collection module, resulting in low disassembly and assembly efficiency.

[0006] To achieve the above objectives, the present invention provides a door body, comprising: a door body and a supporting component arranged on the inner side of the door body, wherein the supporting component is suitable for supporting a plurality of dust collecting modules.

[0007] Furthermore, the supporting component includes a plurality of supporting frames arranged sequentially from top to bottom, and the plurality of supporting frames correspond to the plurality of dust collecting modules in a one-to-one manner.

[0008] Furthermore, the supporting component also includes a supporting upright plate, which is connected to the inner side of the door body and connected to a plurality of supporting frames.

[0009] Furthermore, the supporting vertical plate is perpendicular to the door body.

[0010] Furthermore, the support frame is triangular in shape.

[0011] Furthermore, the door body has a vertical hollow cavity.

[0012] The present invention also provides a door body assembly, comprising: a door body and a plurality of dust collecting modules arranged on the inner side of the door body, and the door body is the above-mentioned door body.

[0013] The present invention also provides an air purifier, comprising: a shell having an opening; and a door assembly rotatably connected to the shell to open or close the opening; wherein the door assembly is the above-mentioned door assembly.

[0014] Furthermore, the shell includes a base, a front panel, a rear panel, a left side panel, a right side panel and an upper cover. The front panel, the left side panel, the rear panel and the right side panel are connected in sequence and are connected to the base and the upper cover. The opening is set on the rear panel.

[0015] Furthermore, the air purifier also includes a rotating shaft connected to the shell, and the door body of the door body assembly is connected to the rotating shaft.

[0016] The technical solution of the present invention has the following advantages: when cleaning the dust collecting modules, it is only necessary to open the door body once and close the door body once to disassemble and assemble multiple dust collecting modules, and the disassembly and assembly efficiency is high. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 A three-dimensional schematic diagram of a dust collection module provided by the present invention is shown;

[0019] Figure 2 Shows Figure 1 An exploded diagram of the dust collection module;

[0020] Figure 3 Shows Figure 1 A three-dimensional schematic diagram of a stand of a dust collection module;

[0021] Figure 4 Shows Figure 3 A three-dimensional schematic diagram of the stand from another angle;

[0022] Figure 5 Shows Figure 1 A three-dimensional schematic diagram of the connection mechanism and elastic component of the dust collection module;

[0023] Figure 6 Shows Figure 5A partially exploded schematic diagram of a connecting mechanism and an elastic component;

[0024] Figure 7 A three-dimensional schematic diagram of an air purifier provided by the present invention is shown;

[0025] Figure 8 Shows Figure 7 A three-dimensional schematic diagram of an air purifier with a door in a half-open state;

[0026] Fig. 9 Shows Figure 7 A three-dimensional schematic diagram of a door body and a rear panel of an air purifier;

[0027] Fig.10 Shows Fig. 9 An exploded diagram of the door and rear panel;

[0028] Fig.11 Shows Figure 7 Schematic diagram of the air purifier.

[0029] Description of reference numerals:

[0030] 1. Dust collecting module; 11. Stand; 111. First side; 1111. Installation limit groove; 112. Second side; 12. First side frame; 13. Second side frame; 131. Second installation hole; 20. Dust collecting stand; 21. Through hole; 30. Elastic component; 40. Connecting mechanism; 41. Sleeve; 42. First telescopic rod; 421. Outer flange; 43. First elastic component; 44. Second telescopic rod; 45. Second elastic component; 50. Door body; 51. Door body; 511. Hollow cavity; 52. Support frame; 53. Support stand; 60. Casing; 61. Base; 62. Front panel; 63. Rear panel; 64. Left panel; 65. Right panel; 66. Upper cover; 67. Fan assembly; 68. Purification assembly; 70. Shaft. DETAILED DESCRIPTION

[0031] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0033] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0034] In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0035] like Figures 1 to 3 As shown, the dust collecting module 1 of this embodiment includes: a stand 11 and a plurality of dust collecting vertical plates 20, the stand 11 having a first side 111 and a second side 112 disposed back to back; the plurality of dust collecting vertical plates 20 are arranged in sequence and spaced apart on the first side 111 of the stand 11; wherein the plurality of dust collecting vertical plates 20 are all rotatable relative to the first side 111, so that a partial length of the dust collecting module 1 along the arrangement direction of the plurality of dust collecting vertical plates 20 can be adjusted.

[0036] Using the dust collecting module 1 of this embodiment, the stand 11 of the dust collecting module 1 is matched with the door body 50 (such as Figure 8As shown), when the door body 50 is opened, the first dust collecting upright plate 20 exposed is the first dust collecting upright plate, and the dust collecting upright plates 20 on the inner side are the second dust collecting upright plate, the third dust collecting upright plate, the fourth dust collecting upright plate, ..., the Nth dust collecting upright plate in sequence. The first dust collecting upright plate rotates due to the resistance of the outer shell 60, and the door body 50 is continued to be opened. The second dust collecting upright plate, the third dust collecting upright plate, etc. are rotated in sequence until the dust collecting module 1 is completely exposed. The dust collecting module 1 can be removed from the door body 50, and then it can be set on the door body 50 after cleaning. Then, a force is applied to the first dust collecting upright plate to make it rotate. The force is continued to be applied, and the second dust collecting upright plate, the third dust collecting upright plate, etc. are rotated in sequence until the dust collecting module 1 is compressed to the point where it can enter the outer shell 60 through the opening on the outer shell 60. Then, the door body 50 is closed to complete the disassembly and assembly of the dust collecting module 1. The length of the dust collecting module 1 along the arrangement direction of the multiple dust collecting vertical plates 20 can be adjusted as the door body 50 is opened, that is, the dust collecting module 1 is compressible as the door body 50 is opened, and the dust collecting module 1 can be brought out directly by opening the door body 50. The disassembly and assembly process of the dust collecting module 1 is relatively simple and easy to disassemble and assemble, which effectively solves the problem in the prior art that the incompressible dust collecting module cannot be directly brought out by opening the door body, resulting in cumbersome disassembly and assembly of the dust collecting module.

[0037] In this embodiment, if Figure 1 and Figure 8 As shown, the dust collecting module 1 also includes a reset component for resetting the rotated dust collecting plate 20. The cleaned dust collecting module 1 is reinstalled in the housing 60, and the rotated dust collecting plate 20 is reset by the reset component so that the dust collecting plate 20 is restored to its original position, thereby maximizing the ventilation area between any two adjacent dust collecting plates 20, which is convenient for collecting dust.

[0038] In this embodiment, the reset component is an elastic component 30, and the elastic component 30 is arranged on a plurality of dust collecting upright plates 20. In the process of opening or closing the door body 50, the elastic component 30 is compressed; after the door body 50 is fully opened or fully closed, the dust collecting upright plates 20 are reset by the elastic force of the elastic component 30, and the elastic component 30 has a simple structure and reduces costs.

[0039] In this embodiment, if Figure 1 and Figure 2As shown, the dust collecting module 1 further includes a first side frame 12, a second side frame 13 and a connecting mechanism 40, the first side frame 12 is rotatably connected to the first side, the second side frame 13 is arranged on the second side of the first side 111 opposite to the first side, a plurality of dust collecting vertical plates 20 are located between the first side frame 12 and the second side frame 13, and the connecting mechanism 40 is penetrated through the first side frame 12, the plurality of dust collecting vertical plates 20 and the second side frame 13. The plurality of dust collecting vertical plates 20, the first side frame 12 and the second side frame 13 are first connected together by the connecting mechanism, and then the first side frame 12 and the second side frame 13 are fixed to the vertical frame 11 to improve the assembly efficiency. The vertical frame 11, the first side frame 12 and the second side frame 13 form a supporting frame for supporting the plurality of dust collecting vertical plates 20.

[0040] In this embodiment, the length of the connecting mechanism 40 is adjustable, that is, the connecting mechanism 40 is retractable. During the process of opening or closing the door body 50, the length of the connecting mechanism 40 becomes shorter. After the door body 50 is fully opened or fully closed, the connecting mechanism 40 is restored to its original position to prevent the connecting mechanism 40 from interfering with the outer shell 60.

[0041] In this embodiment, if Figure 2 , Figure 5 and Figure 6 As shown, the connection mechanism 40 includes a sleeve 41, a first telescopic rod 42 and a first elastic member 43. The first end of the first telescopic rod 42 is inserted into the first side frame 12, the second end of the first telescopic rod 42 is slidably connected to the first end of the sleeve 41, the first elastic member 43 is sleeved on the first telescopic rod 42 and is located between the first end of the sleeve 41 and the first end of the first telescopic rod 42, and the second end of the sleeve 41 is connected to the second side frame 13. In the process of opening or closing the door body 50, under the resistance of the housing 60 or the external force, the first telescopic rod 42 retracts into the sleeve 41, and the first elastic member 43 is compressed; after the door body 50 is fully opened or fully closed, the elastic force of the first elastic member 43 causes the first telescopic rod 42 to extend out of the sleeve 41. The structure of the connection mechanism is simple and easy to process and manufacture.

[0042] In this embodiment, the connecting mechanism 40 further includes a second telescopic rod 44 and a second elastic member 45. The first end of the second telescopic rod 44 is inserted into the second side frame 13, the second end of the second telescopic rod 44 is slidably connected to the second end of the sleeve 41, and the second elastic member 45 is sleeved on the second telescopic rod 44 and is located between the first end of the second telescopic rod 44 and the second end of the sleeve 41. In the process of opening or closing the door body 50, the first telescopic rod 42 and the second telescopic rod 44 are both retracted into the sleeve 41 by the resistance of the housing 60 or the external force, and the first elastic member 43 and the second elastic member 45 are both compressed; after the door body 50 is fully opened or fully closed, the first telescopic rod 42 and the second telescopic rod 44 are extended out of the sleeve 41 by the elastic force of the first elastic member 43 and the second elastic member 45 respectively. The provision of the second elastic member 45 can increase the compression amount. Of course, the second elastic member 45 and the second telescopic rod 44 may also be omitted.

[0043] In this embodiment, the first elastic member 43 and the second elastic member 45 are both springs, which are easy to use and low in cost.

[0044] In this embodiment, the first side frame 12 is connected to the vertical frame 11 via a rotating shaft, and the second side frame 13 is fixed to the vertical frame 11 by means of screws, rivets or welding.

[0045] In this embodiment, both ends of the first telescopic rod 42 and the second telescopic rod 44 have outer flanges 421, and both ends of the sleeve 41 have inner flanges that match the outer flanges 421. The sleeve 41 can prevent the telescopic rod from slipping out of the sleeve 41 through the outer flanges 421 and the inner flanges, and improve the assembly reliability. The first side frame 12 is provided with a first mounting hole that matches the first telescopic rod 42, and the second side frame 13 is provided with a second mounting hole 131 that matches the second telescopic rod 44. The first mounting hole is a first stepped hole, and the second mounting hole 131 is a second stepped hole. At this time, the outer flange 421 of the first telescopic rod 42 away from the sleeve 41 is located in the large hole of the first stepped hole, and the outer flange of the second telescopic rod 44 away from the sleeve 41 is located in the large hole of the second stepped hole, so that the surface of the first side frame 12 and the second side frame 13 is smoother and more beautiful.

[0046] In this embodiment, if Figure 1 , Figure 3 and Figure 4As shown, a plurality of installation limit grooves 1111 corresponding to a plurality of dust collecting vertical plates 20 are provided on the first side 111, and the side edges of the dust collecting vertical plates 20 are inserted into the installation limit grooves 1111 and the width of the installation limit grooves 1111 is greater than the thickness of the dust collecting vertical plates 20, so that the side edges of the dust collecting vertical plates 20 can move in the installation limit grooves 1111. The above structure does not require a connecting structure to connect the dust collecting vertical plates 20 to the stand, which reduces the number of parts and improves assembly efficiency. The installation limit grooves 1111 are used to install and limit the dust collecting vertical plates. There is a certain gap between the groove wall of the installation limit grooves 1111 and the dust collecting vertical plates 20, which can ensure that the dust collecting vertical plates can be installed in the installation limit grooves 1111 to achieve a certain range of rotational movement. A plurality of protrusions are provided on the first side 111, and the protrusions extend in the vertical direction. The installation limit grooves 1111 are arranged on the protrusions, which can reduce the weight of the stand.

[0047] In order to prevent the connection mechanism from directly contacting the dust collecting vertical plate 20, in this embodiment, Figure 5 As shown, the elastic component 30 is an elastic sleeve, and part of the connecting mechanism 40 is located in the elastic sleeve, which makes the structure more compact and flexible, occupies less space, and thus increases the ventilation area. The elastic sleeve is made of insulating material, which can achieve insulation of the dust collecting plate and also support the dust collecting plate.

[0048] In this embodiment, the elastic sleeves and the connecting mechanism 40 are provided in multiple and one-to-one correspondence. Specifically, the multiple elastic sleeves are arranged in multiple rows and columns. Of course, the multiple elastic sleeves can also be arranged in one row or one column.

[0049] In this embodiment, if Figure 2 As shown, the dust collecting vertical plate is provided with a through hole 21 for the elastic sleeve to pass through.

[0050] As an alternative embodiment, when the length of the dust collecting module 1 along the arrangement direction of the multiple dust collecting vertical plates 20 is greater than or equal to the length thereof perpendicular to the arrangement direction, it is not necessary to set all the dust collecting vertical plates 20 to be rotatable. A portion of the multiple dust collecting vertical plates 20 can rotate relative to the first side 111, and the rest of the multiple dust collecting vertical plates 20 cannot rotate relative to the first side 111, that is, the multiple dust collecting vertical plates 20 are divided into two groups, one group of dust collecting vertical plates is rotatable, and the other group of dust collecting vertical plates is not rotatable. The rotatable group of dust collecting vertical plates is arranged near the first side edge of the first side 111, and the non-rotatable group of dust collecting vertical plates will not interfere with the door body 50 when the door body is opened or closed.

[0051] As an alternative embodiment, each dust collecting plate is connected to the frame via an elastic component, that is, one end of the elastic component is connected to the frame and the other end is connected to the dust collecting plate.

[0052] As an alternative embodiment, the side of each dust collecting vertical plate is connected to the vertical frame via a hinge.

[0053] The present invention also provides a door body, such as Figures 8 to 10 As shown, it comprises: a door body 51 and a support component arranged on the inner side of the door body 51, the support component is suitable for supporting multiple dust collecting modules 1. When cleaning the dust collecting modules 1, it is only necessary to open the door body once and close the door body once to disassemble and assemble multiple dust collecting modules, and the disassembly and assembly efficiency is high.

[0054] In this embodiment, the support component includes a plurality of support frames 52 arranged sequentially from top to bottom, and the plurality of support frames 52 are matched one by one with the plurality of dust collecting modules 1. The dust collecting module 1 can be directly placed on the support frame 52 without connecting the dust collecting module 1 to the door body 50. After opening the door body 50, the dust collecting module 1 can be directly removed from the support frame 52, thereby improving the disassembly and assembly efficiency.

[0055] In this embodiment, the support component further includes a support plate 53, which is connected to the inner side of the door body 51 and connected to the plurality of support frames 52. The support plate 53 connects the plurality of support frames 52 to improve the structural strength and prevent the support frames from being deformed. In this embodiment, the support plate 53 is perpendicular to the door body 51.

[0056] In this embodiment, the support frame 52 is triangular in shape, which can avoid interference with the outer shell during the opening and closing process of the door body.

[0057] In this embodiment, the door body 51 has a vertical hollow cavity 511, which can reduce the weight of the door body and improve the structural strength of the door body.

[0058] In this embodiment, three dust collecting modules 1 are provided, and the three dust collecting modules 1 can be pulled out simultaneously by opening the door body 50 once, and then the three dust collecting modules can be replaced separately to ensure that the dust collecting modules do not affect each other during operation.

[0059] As an alternative embodiment, the door body 50 is not provided with a supporting vertical plate 53. When the door body 50 does not interfere with the outer shell when opening and closing, the connecting mechanism can be set to a non-retractable structure.

[0060] As an alternative embodiment, the dust collecting module 1 is provided with a hook, and the supporting component is a hanging hole that cooperates with the hook, or the dust collecting module is fixed to the door body 50 by screws, and the supporting component is a screw in this case.

[0061] The present invention also provides a door assembly, such as Figure 7 and Figure 8As shown, it comprises: a door body 50 and a plurality of dust collecting modules 1 arranged on the inner side of the door body 50, the dust collecting module 1 is the above-mentioned dust collecting module, the rotatable dust collecting vertical plate 20 is arranged away from the connection side of the door body 50, and the door body 50 is the above-mentioned door body. The connection side of the door body 50 is connected to the housing 60, and the side of the door body 50 opposite to the connection side is the opening side.

[0062] The present invention also provides an air purifier, such as Figure 7 and Figure 8 As shown, it includes: a shell 60 and a door assembly, the shell 60 has an opening; the door assembly is rotatably connected to the shell 60 to open or close the opening; wherein the door assembly is the above-mentioned door assembly.

[0063] In this embodiment, if Figure 7 and Fig.11 As shown, the housing 60 includes a base 61, a front panel 62, a rear panel 63, a left side panel 64, a right side panel 65 and an upper cover 66. The front panel 62, the left side panel 64, the rear panel 63 and the right side panel 65 are sequentially connected to the base 61 and the upper cover 66, and the opening is set on the rear panel 63. The door body 50 is located at the back of the air purifier, making the front of the air purifier more concise and beautiful. The upper cover 66 is provided with an air outlet.

[0064] In this embodiment, the air purifier further includes a fan assembly 67 and a purification assembly 68 , the fan assembly 67 is located above the purification assembly 68 , and a plurality of dust collection modules 1 are located in the cavity of the purification assembly 68 .

[0065] In this embodiment, the air purifier further includes a rotating shaft 70 connected to the housing 60, and the door body 50 of the door body assembly is connected to the rotating shaft 70. The door body 50 is connected to the rear panel 63 through the rotating shaft 70. In actual use, the door body 50 can be opened and closed on the rear panel 63 according to user needs. Of course, the door body 50 can also be connected to the housing 60 through a hinge.

[0066] The disassembly and assembly process of the dust collection module 1 is described below:

[0067] When the door body 50 is opened, the dust collecting plate 20 exposed first is the first dust collecting plate, and the dust collecting plate 20 on the inner side is the second dust collecting plate, the third dust collecting plate, the fourth dust collecting plate, ..., the Nth dust collecting plate in sequence. The first side frame 12 rotates due to the resistance of the outer shell 60, and the elastic sleeve is compressed. The door body 50 continues to be opened. After the first telescopic rod 42 is subjected to the resistance of the outer shell 60, the first telescopic rod 42 and the second telescopic rod 44 retract into the sleeve 41, the spring is compressed, and then the door continues to be opened. The first side frame transmits the force received to the first dust collecting plate, and the first dust collecting plate rotates. As the door body 50 is opened, the second dust collecting plate, the third dust collecting plate, etc. rotate in sequence until the dust collecting module 1 is completely exposed. Under the elastic force of the elastic sleeve and the spring, the multiple dust collecting plates 20, the first telescopic rod 42 and the second telescopic rod 44 are restored to their original positions respectively, and then the dust collecting module 1 is removed from the support frame 52 of the door body 50 for cleaning, and the dust collecting module is disassembled, which is convenient for disassembly. During the opening process of the door body 50, the distance between the sides of any two adjacent dust collecting plates away from the frame becomes shorter, so that the dust collecting module is compressible in the arrangement direction of the multiple dust collecting plates, realizing the structural flexibility of the dust collecting module, and facilitating the user to disassemble and replace the dust collecting module during the use of the whole machine.

[0068] After cleaning, place the dust collecting module on the support frame 52, and then apply force to the first side frame to make it rotate, and continue to apply force, the first dust collecting vertical plate, the second dust collecting vertical plate, the third dust collecting vertical plate, etc. rotate in turn. At the same time, it is also necessary to apply force to the first telescopic rod to retract it into the sleeve until the dust collecting module 1 is compressed to the point where it can enter the outer shell 60 through the opening on the outer shell 60. After the dust collecting module 1 enters the outer shell 60, under the elastic force of the elastic sleeve and the spring, the multiple dust collecting vertical plates 20, the first telescopic rod 42 and the second telescopic rod 44 are restored to their original positions respectively, and then the door body 50 is closed to complete the installation of the dust collecting module 1, which is easy to install.

[0069] From the above description, it can be seen that the above embodiments of the present invention achieve the following technical effects:

[0070] The structure of the dust collection module is flexible and adjustable. The dust collection module can be directly brought out with the rotation of the door body, making it easy to disassemble and replace.

[0071] Obviously, the above embodiments are merely examples for the purpose of clear explanation, and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived therefrom are still within the scope of protection of the invention.

Claims

1. A door assembly, characterized in that: include: A door body (50) and a plurality of dust collecting modules (1) arranged on the inner side of the door body (50), the door body (50) comprising: a door body (51) and a supporting component arranged on the inner side of the door body (51), the supporting component being suitable for supporting the plurality of dust collecting modules (1); the supporting component comprising a plurality of supporting frames (52) arranged in sequence from top to bottom, the plurality of supporting frames (52) correspondingly cooperating with the plurality of dust collecting modules (1) one by one; Each of the dust collection modules (1) comprises: A stand (11) having a first side (111) and a second side (112) disposed in opposite directions; A plurality of dust collecting vertical plates (20) are sequentially arranged at intervals on the first side (111) of the vertical frame (11); Wherein, at least one of the plurality of dust collecting upright plates (20) close to the first side edge of the first side (111) is rotatable relative to the first side (111), so that a partial length of the dust collecting module along the arrangement direction of the plurality of dust collecting upright plates (20) can be adjusted; The rotatable dust collecting vertical plate (20) is arranged away from the connection side of the door body (50); Starting from the dust collecting upright plate (20) on the connection side farthest from the door body (50) along the connection side toward the door body (50), a plurality of rotatable dust collecting upright plates (20) rotate in sequence as the door body (50) is opened.

2. The door assembly according to claim 1, characterized in that: The supporting component also includes a supporting upright plate (53), wherein the supporting upright plate (53) is connected to the inner side of the door body (51) and is connected to the plurality of supporting frames (52).

3. The door assembly according to claim 2, characterized in that: The supporting vertical plate (53) is perpendicular to the door body (51).

4. The door assembly according to claim 1, characterized in that: The support frame (52) is triangular in shape.

5. The door assembly according to any one of claims 1 to 4, characterized in that: The door body (51) has a vertical hollow cavity (511).

6. An air purifier, characterized in that: include: a housing (60) having an opening; a door assembly rotatably connected to the housing (60) to open or close the opening; Wherein, the door body assembly is the door body assembly according to any one of claims 1 to 5.

7. The air purifier according to claim 6, characterized in that: The housing (60) comprises a base (61), a front panel (62), a rear panel (63), a left side panel (64), a right side panel (65) and an upper cover (66); the front panel (62), the left side panel (64), the rear panel (63) and the right side panel (65) are connected in sequence and are connected to the base (61) and the upper cover (66); and the opening is arranged on the rear panel (63).

8. The air purifier according to claim 7, characterized in that: The air purifier further comprises a rotating shaft (70) connected to the housing (60), and the door body (50) of the door body assembly is connected to the rotating shaft (70).

Images