Filter screen, filter screen assembly and ventilation equipment

Abstract

The invention provides a filter screen, a filter screen assembly and ventilation equipment. The filter screen comprises a plurality of filter modules arranged in sequence, and each filter module comprises a filter screen support and a filter screen body arranged on the filter screen support; a magnetic structure is arranged between the filter screen brackets of every two adjacent filter modules, and the magnetic structures enable the two adjacent filter screen brackets to be arranged together in a manner that the two adjacent filter screen brackets can be connected with each other or separated from each other; every two adjacent filter screen supports are connected through magnetic force, the stability of the whole filter screen is kept, and the filter screen supports are rapidly separated through demagnetization or external force application during maintenance. The filter screen bracket can be separately disassembled and assembled in a limited space, the filter screen does not need to be integrally disassembled and assembled, and the disassembly and assembly are convenient; when the filter screen is locally damaged, only a single filter screen bracket needs to be replaced, so that the maintenance difficulty is obviously reduced, and the problem that the maintenance personnel cannot quickly clean or replace the filter screen due to the fact that the existing integrated filter screen needs larger operation space and special tools in the disassembly and assembly process and is inconvenient to disassemble and assemble is solved.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of filtration, and particularly relates to a filter screen, a filter screen assembly and a ventilation device. BACKGROUND

[0002] The existing fluid equipment filters fluid by setting a filter screen in a flow channel. The filter screen needs to be cleaned or replaced after being used for a long time. However, due to the narrow spacing between the periphery of the flow channel and other equipment or walls, the traditional integrated filter screen needs a large operation space and special tools during disassembly and assembly, and is inconvenient to disassemble and assemble, so that maintenance personnel cannot quickly complete the local cleaning or replacement of the filter screen. SUMMARY

[0003] In view of this, the present application provides a filter screen, a filter screen assembly and a ventilation device to solve the problem that the existing integrated filter screen needs a large operation space and special tools during disassembly and assembly, and is inconvenient to disassemble and assemble, so that maintenance personnel cannot quickly complete the cleaning or replacement of the filter screen.

[0004] The present application provides a filter screen, comprising a plurality of filter modules arranged in sequence, each of the filter modules comprising a filter screen support and a filter screen body arranged on the filter screen support.

[0005] A magnetic structure is arranged between the filter screen supports of each two adjacent filter modules, and the magnetic structure allows the two adjacent filter screen supports to be connected to each other and separated from each other.

[0006] Further optionally, the filter screen supports of each two adjacent filter modules comprise a first filter screen support and a second filter screen support, the magnetic structure comprises a first magnet arranged on one side of the first filter screen support close to the second filter screen support and a second magnet arranged on one side of the second filter screen support close to the first filter screen support, and the first magnet and the second magnet have opposite magnetic properties.

[0007] Further optionally, the first filter screen support and the first magnet are connected through a first clamping structure, and the second filter screen support and the second magnet are connected through a second clamping structure.

[0008] The present application also provides a filter screen assembly, comprising a panel and the filter screen according to any one of the above.

[0009] when the panel at the head end and the filter screen support at the head end are in the connected state and the panel at the tail end and the filter screen support at the tail end are in the separated state, the panel at the head end and the entire filter screen can be pulled in the forward direction of the first direction;

[0010] when the panel at the head end and the filter screen support at the head end are in the separated state and the panel at the tail end and the filter screen support at the tail end are in the connected state, the panel at the tail end and the entire filter screen can be pulled in the reverse direction of the first direction;

[0011] when the panel at the head end and the filter screen support at the head end are in the connected state and the panel at the tail end and the filter screen support at the tail end are in the connected state, the panel at the head end and a part of the filter screen support can be pulled in the forward direction of the first direction, and the panel at the tail end and another part of the filter screen support can be pulled in the reverse direction of the first direction;

[0012] wherein the head end is the head end of the entire plurality of filter screen supports, and the tail end is the tail end of the entire plurality of filter screen supports.

[0013] Further optionally, a connecting piece is further included, the connecting piece movably connects the panel and the corresponding filter screen support, and the connecting piece has a first working position and a second working position;

[0014] when the connecting piece is in the first working position, the panel and the corresponding filter screen support are in the connected state; and when the connecting piece is in the second working position, the panel and the corresponding filter screen support are in the separated state;

[0015] by switching the connecting piece between the first working position and the second working position, the panel and the corresponding filter screen support can be switched between the connected state and the separated state.

[0016] Further optionally, the connecting piece is provided with a first connecting part and a second connecting part; in the panel and the corresponding filter screen support, the first connecting part and the panel are movably connected through a first connecting structure, and the second connecting part and the filter screen support are movably connected through a second connecting structure;

[0017] when the connecting piece is in the first working position, the first connecting structure and the second connecting structure have a limiting effect on the panel and the corresponding filter screen support in at least the forward direction of the first direction, the reverse direction of the first direction, the forward direction of the second direction, the reverse direction of the second direction, the forward direction of the third direction, and the reverse direction of the third direction;

[0018] wherein the first direction is the length direction of the filter screen, the second direction is the width direction of the filter screen, and the third direction is the thickness direction of the filter screen.

[0019] Further optionally, one of the first connecting structure and the second connecting structure is a sliding connecting structure, and the other is a plug-in connecting structure, and a sliding direction of the sliding connecting structure and a plug-in direction of the plug-in connecting structure are parallel.

[0020] Further optionally, the sliding connecting structure comprises a sliding groove and a sliding block, and the first connecting part and the panel are connected through cooperation of the sliding block and the sliding groove, and the panel and the corresponding filter screen support are limited in at least a forward direction of the third direction and a reverse direction of the third direction.

[0021] The plug-in connecting structure comprises a plug-in pin and a plug-in hole, and the second connecting part and the filter screen support are connected through cooperation of the plug-in pin and the plug-in hole, and the panel and the corresponding filter screen support are limited in at least a forward direction of the first direction, a reverse direction of the first direction, a forward direction of the second direction and a reverse direction of the second direction.

[0022] Further optionally, an end of the filter screen support close to the panel is formed with a support groove, and the support groove extends along the second direction; a side wall of the support groove in the second direction is formed with the plug-in hole.

[0023] The connecting piece is arranged in the support groove and is slidable along the support groove; the second connecting part is formed with the plug-in pin, and an extension direction of the plug-in pin is parallel to the second direction.

[0024] By sliding the connecting piece along the second direction, the plug-in pin and the plug-in hole can be connected and separated.

[0025] Further optionally, the sliding groove comprises a panel sliding groove and a connecting piece sliding groove, and extension directions of the panel sliding groove and the connecting piece sliding groove are both parallel to the second direction; the sliding block comprises a panel sliding block and a connecting piece sliding block.

[0026] An end of the panel close to the filter screen support is formed with a panel groove; a side wall of the panel groove close to the filter screen support is formed with the panel sliding groove and the panel sliding block, and the panel sliding block is away from the panel groove.

[0027] The first connecting part is formed with the connecting piece sliding groove and the connecting piece sliding block.

[0028] The connecting piece sliding block and the panel sliding groove cooperate, and the panel sliding block and the connecting piece sliding groove cooperate, so that the connecting piece slides along the second direction, and the panel and the corresponding filter screen support are limited in the forward direction of the third direction and the reverse direction of the third direction.

[0029] Further optionally, the first connecting part is formed with a connecting piece mounting groove at one end of the connecting piece sliding groove, and the connecting piece mounting groove and the connecting piece sliding groove are in communication.

[0030] The panel is formed with a panel limiting block at the end of the panel slider, and the panel limiting block and the panel slot are close to the side wall of the filter screen support, and when the panel limiting block and the panel slot are matched with the first connecting part, the panel and the corresponding filter screen support have limiting effects in the positive direction of the first direction and the reverse direction of the first direction.

[0031] The panel limiting block and the connecting piece installation slot are matched, and the panel limiting block passes through the connecting piece installation slot, so that the connecting piece slider and the panel sliding groove are matched.

[0032] Further, the connecting piece installation slot and the connecting piece sliding groove form an L-shaped structure, and the panel limiting block and the panel slider form an L-shaped structure.

[0033] Further, the panel and the corresponding filter screen support are connected by two connecting pieces, and the two connecting pieces are spaced apart and movably arranged in the second direction.

[0034] When the two connecting pieces are away from each other, the two connecting pieces are in the first working position; and when the two connecting pieces are close to each other, the two connecting pieces are in the second working position.

[0035] The application further provides a ventilation equipment comprising a shell and the filter screen assembly.

[0036] The panel comprises a first panel and a second panel, the first panel is arranged at the first opening in a push-pull manner, and the second panel is arranged at the second opening in a push-pull manner; the filter screen is arranged in the installation slot and between the first panel and the second panel.

[0037] When the first panel and the corresponding filter screen support are in the connected state and the second panel and the corresponding filter screen support are in the separated state, the first panel and the entire filter screen can be pulled out through the first opening.

[0038] When the first panel and the corresponding filter screen support are in the separated state and the second panel and the corresponding filter screen support are in the connected state, the second panel and the entire filter screen can be pulled out through the second opening.

[0039] When the first panel and the corresponding filter screen support and the second panel and the corresponding filter screen support are in the connected state, the first panel and part of the filter screen can be pulled out through the first opening, and the second panel and another part of the filter screen can be pulled out through the second opening.

[0040] Further optionally, the ventilation device is a cabinet air conditioner indoor unit.

[0041] Compared with the prior art, the beneficial effects of the present application mainly lie in:

[0042] The filter screen comprises a plurality of filter modules arranged in sequence, each filter module comprises a filter screen support and a filter screen body arranged on the filter screen support, a magnetic force structure is arranged between the filter screen supports of each two adjacent filter modules, and the magnetic force structure allows the two adjacent filter screen supports to be connected to each other and separated from each other and arranged together; the two adjacent filter screen supports are connected through the magnetic force, the stability of the overall filter screen is maintained, and the filter screen supports can be quickly separated through demagnetization or external force during maintenance; the filter screen supports can be separated and disassembled in a limited space, the filter screen does not need to be disassembled and assembled as a whole, the convenience of disassembling and assembling the filter screen is improved; the requirements for disassembling and assembling tools and operation angles during disassembling and assembling the filter screen are reduced, only a single filter screen support needs to be replaced when a local damage occurs, the maintenance difficulty is significantly reduced, and the problems that the existing integrated filter screen needs a large operation space and special tools during disassembling and assembling, and is inconvenient to disassemble and assemble, so that a maintenance personnel cannot quickly complete cleaning or replacement of the filter screen are solved. BRIEF DESCRIPTION OF DRAWINGS

[0043] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the following embodiment or prior art description will be briefly introduced. Obviously, the drawings in the following description are only exemplary, and for those skilled in the art, other drawings can be derived from the provided drawings without creative labor.

[0044] The structures, proportions, sizes, etc. shown in the specification are only used to cooperate with the content disclosed in the specification, to be understood and read by those skilled in the art, and do not define the limiting conditions for the implementation of the present application, so they do not have technical significance. Any modification of structure, change of proportion relationship or adjustment of size, without affecting the effects and purposes that can be achieved by the present application, should still fall within the scope of the technical content disclosed by the present application.

[0045] Figure 1a Front view structural schematic diagram of the filter screen assembly embodiment provided by the present application;

[0046] Figure 1b Front view structural schematic diagram of the filter screen assembly embodiment provided by the present application;

[0047] Figure 2a Exploded structural schematic diagram of the panel, connecting piece, filter screen support, filter screen body and magnet embodiment provided by the present application;

[0048] Figure 2b Assembled structure schematic diagram of the panel, the connecting piece, the filter screen support and the magnet embodiment provided by the present application;

[0049] Figure 3a Assembled structure schematic diagram of the panel, the filter screen support and the connecting piece (the connecting piece is in the first working position) provided by the present application;

[0050] Figure 3b Assembled structure schematic diagram of the panel, the filter screen support and the connecting piece (the connecting piece is in the second working position) provided by the present application;

[0051] Figure 3c Sectional structure schematic diagram of the panel, the filter screen support and the connecting piece (the connecting piece is in the first working position) provided by the present application;

[0052] Figure 4a And Figure 4b Assembled structure schematic diagram of the panel and the connecting piece (the connecting piece is in the first working position) provided by the present application;

[0053] Figure 5a And Figure 5b Assembled structure schematic diagram of the panel and the connecting piece (the connecting piece is in the second working position) provided by the present application;

[0054] Figure 6a Front structure schematic diagram of the first panel and the first filter screen support, the second panel and the second filter screen support and the first filter screen support and the second filter screen support provided by the present application are in the connected state;

[0055] Figure 6b Back structure schematic diagram of the first panel and the first filter screen support, the second panel and the second filter screen support and the first filter screen support and the second filter screen support provided by the present application are in the connected state;

[0056] Figure 7a Front structure schematic diagram of the first panel and the first filter screen support and the second panel and the second filter screen support provided by the present application are in the connected state and the first filter screen support and the first filter screen support are in the separated state;

[0057] Figure 7b Back structure schematic diagram of the first panel and the first filter screen support and the second panel and the second filter screen support provided by the present application are in the connected state and the first filter screen support and the first filter screen support are in the separated state;

[0058] Figure 8The first panel and the first filter screen support provided by the present application are in a separated state, and the first filter screen support and the first filter screen support and the second panel and the second filter screen support are in a connected state, and the embodiment structure schematic diagram is shown in the figure;

[0059] Figure 9 The second panel and the second filter screen support provided by the present application are in a separated state, and the first panel and the first filter screen support and the first filter screen support and the first filter screen support are in a connected state, and the embodiment structure schematic diagram is shown in the figure;

[0060] Figure 10a And Figure 10b The embodiment structure schematic diagram of the cabinet type air conditioner indoor unit is provided by the present application, and when the cabinet type air conditioner indoor unit is installed near the corner of the wall, the filter screen is disassembled;

[0061] Figure 11a And Figure 11b The embodiment structure schematic diagram of the cabinet type air conditioner indoor unit is provided by the present application, and when the cabinet type air conditioner indoor unit is installed near the corner of the wall, the filter screen is disassembled;

[0062] In the figure:

[0063] 1-filter screen; 11-filter screen support; 111-first filter screen support; 112-second filter screen support; 12-filter screen body; 13-clamping groove; 14-support groove; 141-receptacle;

[0064] 2-panel; 21-first panel; 22-second panel; 23-panel groove; 231-panel sliding groove; 232-panel sliding block; 233-panel limiting block;

[0065] 3-connector; 31-first connecting part; 311-connector sliding groove; 312-connector sliding block; 313-connector mounting groove; 32-second connecting part; 321-latch;

[0066] 41-first magnet; 42-second magnet; 43-magnet support; 431-clamping plate; 44-magnet body;

[0067] 511-positive direction of the first direction; 512-negative direction of the first direction; 521-positive direction of the second direction; 522-negative direction of the second direction; 531-positive direction of the third direction; 532-negative direction of the third direction;

[0068] 6-cabinet type air conditioner indoor unit; 61-casing; 621-first opening; 622-second opening;

[0069] 71-corner; 72-left wall; 73-right wall. DETAILED DESCRIPTION

[0070] The present application is illustrated by the following specific examples, and other advantages and effects of the present application can be easily understood by those skilled in the art from the disclosure of the specification. Obviously, the described examples are part of the examples of the present application, rather than all the examples. Based on the examples in the present application, all other examples obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0071] The terms used in the embodiments of the present application are only for the purpose of describing specific embodiments, and are not intended to limit the present application. The singular forms "a", "said" and "the" used in the embodiments of the present application and the appended claims are also intended to include the plural forms, unless the context clearly indicates otherwise. "Plural" generally includes at least two, but does not exclude the case of including at least one.

[0072] It should be understood that the term "and / or" used herein is only to describe the association relationship of the associated objects, which means that there can be three relationships, for example, A and / or B, which can represent the three cases of A alone, A and B together, and B alone. In addition, the character " / " herein generally represents an "or" relationship between the front and rear associated objects.

[0073] It should also be noted that the terms "include", "contain" or any other variants thereof are intended to cover non-exclusive inclusion, so that the goods or systems including a series of elements not only include those elements, but also include other elements not explicitly listed, or include elements inherent to such goods or systems. Without more limitations, the element defined by the statement "including a" does not exclude the presence of other identical elements in the goods or systems including the element.

[0074] The existing fluid equipment filters the fluid by arranging a filter screen in the flow channel. The filter screen needs to be cleaned or replaced after being used for a long time. However, due to the narrow spacing between the periphery of the flow channel and other equipment or walls, the traditional integrated filter screen needs a large operation space and special tools during disassembly and assembly, and is not convenient to disassemble and assemble, so that the maintenance personnel cannot quickly complete the local cleaning or replacement of the filter screen.

[0075] The present application creatively provides a filter screen, which comprises a plurality of filter modules arranged in sequence, each filter module comprising a filter screen support and a filter screen body arranged on the filter screen support. Adjacent two filter screen supports can be connected by magnetic force to maintain the stability of the overall filter screen, and can be quickly separated by demagnetization or external force during maintenance. Therefore, the filter screen supports can be separated and disassembled in a limited space without the need to disassemble and assemble the filter screen as a whole, thereby improving the convenience of disassembling and assembling the filter screen.

[0076] Example 1

[0077] <Filtering screen 1>

[0078] As Figures 1a to 1b shown, the embodiment provides a filtering screen 1, comprising a plurality of filtering modules arranged in sequence, each filtering module comprising a filter screen support 11 and a filter screen body 12 arranged on the filter screen support 11, a plurality of filter screen supports 11 are arranged in sequence and connected, so that the plurality of filtering modules form a filtering screen; a magnetic structure is arranged between the filter screen supports 11 of each adjacent two filtering modules, and the magnetic structure allows the adjacent two filter screen supports to be arranged together by mutual connection and mutual separation; that is, the adjacent two filter screen supports 11 can be connected together by magnetic force, and can be separated from each other when the magnetic force disappears or when an external force is applied to the adjacent two filter screen supports 11; specifically, the filter screen body 12 has a filtering effect on the air flowing through, and the filter screen body 12 is a HEPA screen.

[0079] When the adjacent two filter screen supports 11 are connected together, the plurality of filter screen supports 11 form a whole, ensuring the stability of the filtering screen 1; when the magnetic force disappears or an external force is applied to the adjacent two filter screen supports 11, the adjacent two filter screen supports 11 can be separated from each other, facilitating the disassembly and assembly of the filter screen supports 11 (both single left or single right disassembly and assembly of the filtering screen 1 in the length direction of the filtering screen 1, and left and right disassembly and assembly of the filtering screen 1 in the length direction of the filtering screen 1 are possible), without the need for overall disassembly and assembly of the filtering screen 1, so that the filtering screen 1 can be disassembled and assembled in a limited space without the need for professional disassembly and assembly tools, and the disassembly and assembly method is flexible, the disassembly and assembly process is simple, the difficulty of maintaining the filtering screen 1 is reduced, the cleaning or replacement of the filtering screen 1 can be completed in time, and the filtering effect of the filtering screen 1 is ensured.

[0080] Further, as Figures 2a to 2b shown, the filter screen supports 11 of the adjacent two filtering modules comprise a first filter screen support 111 and a second filter screen support 112, the front surface of the side close to the second filter screen support 112 of the first filter screen support 111 is provided with a first magnet 41, the front surface of the side close to the first filter screen support 111 of the second filter screen support 112 is provided with a second magnet 42, and the magnetic properties of the first magnet 41 and the second magnet 42 are opposite; when the external force applied to the adjacent two filter screen supports 11 is greater than the magnetic force (magnetic attraction) between the first magnet 41 and the second magnet 42, the adjacent two filter screen supports 11 can be separated from each other;

[0081] Specifically, the first magnet 41 is provided with two, and the two first magnets 41 are arranged at intervals in the width direction of the filtering screen 1; the second magnet 42 is provided with two, and the two second magnets 42 are arranged at intervals in the width direction of the filtering screen 1; the two first magnets 41 and the two second magnets 42 are arranged one by one in correspondence;

[0082] The first magnet 41 is detachably arranged on the first filter screen support 111, and the second magnet 42 is detachably arranged on the second filter screen support 112; the first magnet 41 and the second magnet 42 can be replaced according to actual needs, so that the first magnet 41 and the second magnet 42 have a corresponding magnetic force therebetween;

[0083] The magnetic force between the adjacent two filter screen supports 11 at different positions is different in size, so that the external force applied to the head end and the tail end of the entire filter screen support 11 is different in size, the adjacent two filter screen supports 11 at different positions are separated from each other, and the convenience of disassembling and assembling the filter screen 1 is improved to adapt to different disassembly spaces.

[0084] Preferably, in the length direction of the filter screen 1, the magnetic force between the adjacent two filter screen supports 11 at different positions is arranged in a gradient order from large to small or from small to large.

[0085] The connection structure between the first filter screen support 111 and the first magnet 41 and the connection structure between the second filter screen support 112 and the second magnet 42 are further described below. The first filter screen support 111 and the first magnet 41 are detachably connected through a first clamping structure, which facilitates timely disassembly or replacement of the first magnet 41. The second filter screen support 112 and the second magnet 42 are detachably connected through a second clamping structure, which facilitates timely disassembly or replacement of the second magnet 42.

[0086] Specifically, the first clamping structure and the second clamping structure each include a clamping groove 13 and a clamping plate 431. The first filter screen support 111 is provided with a clamping groove 13 on the side close to the second filter screen support 112, and the second filter screen support 112 is provided with a clamping groove 13 on the side close to the first filter screen support 111. The first magnet 41 and the second magnet 42 each include a magnet body 44 and a magnet support 43, the magnet support 43 is arranged outside the magnet body 44, and the magnet support 43 forms the clamping plate 431. The clamping plate 431 and the clamping groove 13 cooperate to arrange the first magnet 41 on the first filter screen support 111 and the second magnet 42 on the second filter screen support 112. The side wall of the clamping groove 13 of the first filter screen support 111 and the corresponding clamping plate 431 are connected by a screw, and the side wall of the clamping groove 13 of the second filter screen support 112 and the corresponding clamping plate 431 are connected by a screw.

[0087] The same first filter screen support 111 can be adapted to different sizes of the first magnet 41, and the same second filter screen support 112 can be adapted to different sizes of the second magnet 42.

[0088] <Filter screen assembly>

[0089] As Figures 1a to 9As shown, the embodiment also provides a filter screen assembly, comprising the panel 2 and the filter screen 1 of any one of the above; a plurality of filter screen supports 11 are sequentially arranged in the first direction, and the first end and the tail end of the plurality of filter screen supports 11 are each provided with a panel 2; the panel 2 at the first end and the filter screen support 11 and the panel 2 at the tail end and the filter screen support 11 each have a connected state of being connected to each other and a separated state of being separated from each other;

[0090] When the panel 2 at the first end and the filter screen support 11 are in the connected state and the panel 2 at the tail end and the filter screen support 11 are in the separated state, the panel 2 at the first end and the entire filter screen 1 can be pulled in the forward direction 511 of the first direction; and then the panel 2 at the first end and the entire filter screen 1 can be disassembled in the forward direction 511 of the first direction and assembled in the reverse direction 512 of the first direction;

[0091] When the panel 2 at the first end and the filter screen support 11 are in the separated state and the panel 2 at the tail end and the filter screen support 11 are in the connected state, the panel 2 at the tail end and the entire filter screen 1 can be pulled in the reverse direction 512 of the first direction; and then the panel 2 at the tail end and the entire filter screen 1 can be disassembled in the reverse direction 512 of the first direction and assembled in the forward direction 511 of the first direction;

[0092] When the panel 2 at the first end and the filter screen support 11 and the panel 2 at the tail end and the filter screen support 11 are both in the connected state, the panel 2 at the first end and a part of the filter screen supports 11 can be pulled in the forward direction 511 of the first direction, and the panel 2 at the tail end and another part of the filter screen supports 11 can be pulled in the reverse direction 512 of the first direction; and then the panel 2 at the first end and a part of the filter screen supports 11 can be disassembled in the forward direction 511 of the first direction and assembled in the reverse direction 512 of the first direction, and the panel 2 at the tail end and another part of the filter screen supports 11 can be disassembled in the reverse direction 512 of the first direction and assembled in the forward direction 511 of the first direction;

[0093] Wherein, the first end is the first end of the plurality of filter screen supports 11 as a whole, and the tail end is the tail end of the plurality of filter screen supports 11 as a whole;

[0094] In this way, the entire filter screen 1 or a part of the filter screen supports 11 can be disassembled in the forward direction 511 of the first direction or the reverse direction 512 of the first direction according to the actual disassembly space, thereby improving the convenience of disassembling the filter screen 1.

[0095] As shown, Figures 3a to 5bAs shown, the structure required for connecting the panel 2 and the filter support 11 is further explained. The filter assembly also includes a connector 3, which movably connects the panel 2 and the corresponding filter support 11. In the direction of movement of the connector 3, the connector 3 has a first working position and a second working position.

[0096] like Figure 3a and Figure 3c As shown, when connector 3 is in the first working position, panel 2 and the corresponding filter holder 11 are in a connected state; Figure 3b As shown, when the connector 3 is in the second working position, the panel 2 and the corresponding filter support 11 are in a separated state;

[0097] By switching the connector 3 between the first working position and the second working position, the panel 2 and the corresponding filter support 11 can be switched between a connected state and a separated state; that is, by placing the connector 3 in different positions, the panel 2 and the corresponding filter support 11 can be connected or separated.

[0098] In this way, the disassembly and assembly direction can be selected according to the actual disassembly and assembly space, so that the panel 2 and the corresponding filter screen bracket 11 are in a connected state, and then the entire filter screen 1 can be disassembled or the filter screen bracket 11 can be disassembled and assembled separately.

[0099] Furthermore, the connector 3 is provided with a first connecting part 31 and a second connecting part 32; in the panel 2 and the corresponding filter support 11, the first connecting part 31 and the panel 2 are movably connected by a first connecting structure, and the second connecting part 32 and the filter support 11 are movably connected by a second connecting structure.

[0100] When the connector 3 is in the first working position, the first connection structure and the second connection structure have limiting effects on the panel 2 and the corresponding filter support 11 in at least the first direction forward 511, the first direction reverse 512, the second direction forward 521, the second direction reverse 522, the third direction forward 531, and the third direction reverse 532; thus, the panel 2 and the corresponding filter support 11 can be stably and reliably connected.

[0101] Wherein, the first direction is the length direction of filter 1, the second direction is the width direction of filter 1, and the third direction is the thickness direction of filter 1.

[0102] The following further explains the connection structure required for connector 3, panel 2, and filter support 11. One of the first connection structure and the second connection structure is a sliding connection structure, and the other is a plug-in connection structure. The sliding direction of the sliding connection structure is parallel to the plug-in direction of the plug-in connection structure. Thus, by operating connector 3 to slide along the sliding direction of the sliding connection structure, the plug-in connection structure can be plugged in, which is simple and convenient.

[0103] Further, the sliding connection structure comprises a sliding groove and a sliding block, the first connecting part 31 and the panel 2 are connected through cooperation of the sliding block and the sliding groove, and the panel 2 and the corresponding filter screen support 11 have limiting effects in at least the third direction positive 531 and the third direction negative 532;

[0104] The plug-in connection structure comprises a plug 321 and a socket 141, the second connecting part 32 and the filter screen support 11 are connected through cooperation of the plug 321 and the socket 141, and the panel 2 and the corresponding filter screen support 11 have limiting effects in at least the first direction positive 511, the first direction negative 512, the second direction positive 521 and the second direction negative 522;

[0105] In this way, through cooperation of the sliding block and the sliding groove and cooperation of the plug 321 and the socket 141, the panel 2 and the corresponding filter screen support 11 are limited in at least six directions, thereby realizing stable and reliable connection of the panel 2 and the corresponding filter screen support 11.

[0106] Specifically, the filter screen support 11 is formed with a support groove 14 at one end close to the panel 2, the support groove 14 extends along the second direction, a side wall of the support groove 14 in the second direction is formed with the socket 141, the connecting piece 3 is arranged in the support groove 14 and can slide along the support groove 14, the second connecting part 32 is formed with the plug 321, an extension direction of the plug 321 is parallel to the second direction, and the plug 321 and the socket 141 are in interference fit;

[0107] The plug 321 and the socket 141 can be connected and separated by sliding the connecting piece 3 along the second direction;

[0108] The sliding groove comprises a panel sliding groove 231 and a connecting piece sliding groove 311, and extension directions of the panel sliding groove 231 and the connecting piece sliding groove 311 are both parallel to the second direction; the sliding block comprises a panel sliding block 232 and a connecting piece sliding block 312;

[0109] The panel 2 is formed with a panel groove 23 at one end close to the filter screen support 11, a side wall of the panel groove 23 close to the filter screen support 11 is formed with the panel sliding groove 231 and the panel sliding block 232, the panel sliding block 232 is away from the panel groove 23, and the first connecting part 31 is formed with the connecting piece sliding groove 311 and the connecting piece sliding block 312;

[0110] The connecting piece sliding block 312 cooperates with the panel sliding groove 231, the panel sliding block 232 cooperates with the connecting piece sliding groove 311, the connecting piece 3 slides along the second direction, and the panel 2 and the corresponding filter screen support 11 have limiting effects in the third direction positive 531 and the third direction negative 532.

[0111] In addition, the first connecting part 31 is formed with a connecting piece mounting groove 313 at one end of the connecting piece sliding groove 311, the connecting piece mounting groove 313 and the connecting piece sliding groove 311 are in communication.

[0112] The panel 2 is formed with a panel limiting block 233 at the end of the panel sliding block 232. When the panel limiting block 233 and the panel slot 23 are close to the side wall of the filter screen support 11 and cooperate with the first connecting part 31, the panel 2 and the corresponding filter screen support 11 have limiting effects in the first direction positive 511 and the first direction negative 512. In this way, the connecting part 3 can stably slide relative to the panel 2 and the corresponding filter screen support 11, thereby realizing stable connection of the panel 2 and the corresponding filter screen support 11.

[0113] When the connecting part 3 and the panel 2 and the corresponding filter screen support 11 are installed, the panel limiting block 233 is made to correspond to the connecting part installation slot 313 and pass through the connecting part installation slot 313, and then the connecting part sliding block 312 and the panel sliding slot 231 are made to slide and cooperate, and the panel sliding block 232 and the connecting part sliding slot 311 are made to slide and cooperate.

[0114] Specifically, the connecting part installation slot 313 and the connecting part sliding slot 311 constitute an L-shaped structure, and the panel limiting block 233 and the panel sliding block 232 constitute an L-shaped structure. In the third direction negative 532, the connecting part sliding slot 311 and the connecting part installation slot 313 are sequentially arranged, and the panel sliding block 232 and the panel limiting block 233 are sequentially arranged.

[0115] In the embodiment, each panel 2 and the corresponding filter screen support 11 are connected by two connecting parts 3, and the two connecting parts 3 are spaced apart and movably arranged in the second direction.

[0116] As shown in Figure 4a and Figure 4b , by moving the two connecting parts 3 away from each other, the two connecting parts 3 can be in the first working position, and then the panel 2 and the corresponding filter screen support 11 are in the connected state.

[0117] As shown in Figure 5a and Figure 5b , by moving the two connecting parts 3 close to each other, the two connecting parts 3 can be in the second working position, and then the panel 2 and the corresponding filter screen support 11 are in the separated state.

[0118] Specifically, the connecting part 3 is slidably arranged relative to the panel 2 and the corresponding filter screen support 11. When the two connecting parts 3 are operated in the second direction and moved away from each other, the panel 2 and the corresponding filter screen support 11 are in the connected state. When the two connecting parts 3 are operated in the second direction and moved close to each other, the panel 2 and the corresponding filter screen support 11 are in the separated state.

[0119] <ventilation equipment>

[0120] The embodiment also provides a ventilation device, comprising a shell 61 and the filter screen assembly of any one of the above; an installation slot is formed in the shell 61, and opposite first and second openings 621 and 622 are formed in the sidewall of the shell 61, and both of the first and second openings 621 and 622 communicate with the installation slot;

[0121] The panel 2 comprises a first panel 21 and a second panel 22, the first panel 21 is arranged at the first opening 621 in a pullable and pushable manner, and the second panel 22 is arranged at the second opening 622 in a pullable and pushable manner; the filter screen 1 is arranged in the installation slot and between the first and second panels 21 and 22;

[0122] When the first panel 21 and the corresponding filter screen support 11 are in the connected state and the second panel 22 and the corresponding filter screen support 11 are in the separated state, the first panel 21 and the entire filter screen 1 can be pulled out through the first opening 621;

[0123] When the first panel 21 and the corresponding filter screen support 11 are in the separated state and the second panel 22 and the corresponding filter screen support 11 are in the connected state, the second panel 22 and the entire filter screen 1 can be pulled out through the second opening 622;

[0124] When the first panel 21 and the corresponding filter screen support 11 and the second panel 22 and the corresponding filter screen support 11 are in the connected state, the first panel 21 and a part of the filter screen 1 can be pulled out through the first opening 621, and the second panel 22 and another part of the filter screen 1 can be pulled out through the second opening 622.

[0125] The dismounting process of the filter screen 1 is further illustrated by taking a wall-mounted vertical ventilation device as an example; the first and second openings 621 and 622 are arranged opposite to each other in the horizontal direction, the filter screen 1 comprises two filter screen supports 11, and the two filter screen supports 11 are respectively a first filter screen support 111 and a second filter screen support 112; the first panel 21 and the first filter screen support 111 are arranged correspondingly, the second panel 22 and the second filter screen support 112 are arranged correspondingly, and the first and second filter screen supports 111 and 112 are connected through the magnetic force between the first and second magnets 41 and 42; the positive direction 511 of the first direction is left, the reverse direction 512 of the first direction is right, the positive direction 521 of the second direction is up, the reverse direction 522 of the second direction is down, the positive direction 531 of the third direction is front, and the reverse direction 532 of the third direction is back;

[0126] The arrangement modes of the vertical ventilation device include that the whole vertical ventilation device is arranged close to the corner 71 of a wall, the left side of the vertical ventilation device is arranged close to the left wall 72, and the right side of the vertical ventilation device is arranged close to the right wall 73; and the dismounting modes of the filter screen 1 include that the left and right sides are simultaneously dismounted, the right side is dismounted alone, and the left side is dismounted alone;

[0127] As Figure 10a andFigure 10b As shown, when the overall vertical ventilation equipment is arranged close to the corner 71 of the wall, the space between the left side of the cabinet 61 and the left wall 72 and the space between the right side of the cabinet 61 and the right wall 73 are both small, and the filter screen 1 is disassembled from the left side and the right side of the cabinet 61 respectively;

[0128] Specifically, in the two connecting members 3 corresponding to the first panel 21 and the first filter screen support 111, the connecting member 3 located at the upper side is slid upward, and the connecting member 3 located at the lower side is slid downward, and then the two connecting members 3 are both in the first working position, and the first panel 21 and the first filter screen support 111 are in the connected state; in the two connecting members 3 corresponding to the second panel 22 and the second filter screen support 112, the connecting member 3 located at the upper side is slid upward, and the connecting member 3 located at the lower side is slid downward, and then the two connecting members 3 are both in the first working position, and the second panel 22 and the second filter screen support 112 are in the connected state;

[0129] When the filter screen 1 is disassembled, the first panel 21 is pulled to the left, and the second panel 22 is pulled to the right; when the external force applied to the first panel 21 and the second panel 22 is greater than the magnetic force (magnetic attraction) between the first filter screen support 111 and the second filter screen support 112, the first filter screen support 111 and the second filter screen support 112 are separated from each other, and then the first panel 21 and the first filter screen support 111 can be pulled out from the first opening 621, and the second panel 22 and the second filter screen support 112 can be pulled out from the second opening 622 (as shown in Figure 7a and Figure 7b ), and then the filter screen body 12 on the first filter screen support 111 and the filter screen body 12 on the second filter screen support 112 can be cleaned or replaced;

[0130] When assembled, the first filter screen support 111 and the first panel 21 are inserted in sequence at the first opening 621, and the first panel 21 is pushed to the right, so that the first filter screen support 111 can be pushed into the mounting groove; the second filter screen support 112 and the second panel 22 are inserted in sequence at the second opening 622, and the second panel 22 is pushed to the left, so that the second filter screen support 112 can be pushed into the mounting groove; the first filter screen support 111 and the second filter screen support 112 are connected by the magnetic force between the first magnet 41 and the second magnet 42, and then the first panel 21, the first filter screen support 111, the second filter screen support 112 and the second panel 22 are connected in sequence (as shown in Figure 6a and Figure 6b ), and then the filter screen 1 is assembled in the mounting groove; the problem that when the overall vertical ventilation equipment is arranged close to the corner 71 of the wall, the space between the left side of the cabinet 61 and the left wall 72 and the space between the right side of the cabinet 61 and the right wall 73 are both small, and the entire filter screen 1 cannot be disassembled from the left side and the right side of the cabinet 61 is solved.

[0131] As shown in Figure 10a and Figure 10bAs shown, when the left side of the vertical ventilation equipment is set close to the left wall 72, the space between the left side of the housing 61 and the left wall 72 is small, while the space between the right side of the housing 61 and the right wall 73 is large. Therefore, the filter screen 1 can be removed and installed from the right side of the housing 61.

[0132] Specifically, when disassembling the filter screen 1, in the two connecting pieces 3 corresponding to the first panel 21 and the first filter screen bracket 111, the upper connecting piece 3 slides downward and the lower connecting piece 3 slides upward, so that both connecting pieces 3 are in the second working position, and the first panel 21 and the first filter screen bracket 111 are in a separated state; in the two connecting pieces 3 corresponding to the second panel 22 and the second filter screen bracket 112, the upper connecting piece 3 slides upward and the lower connecting piece 3 slides downward, so that both connecting pieces 3 are in the first working position, and the second panel 22 and the second filter screen bracket 112 are in a connected state; pulling the second panel 22 to the right, the second panel 22, the second filter screen bracket 112 and the first filter screen bracket 111 can be sequentially pulled out from the second opening 622 (the external force applied to the second panel 22 is less than the magnetic force between the first filter screen bracket 111 and the second filter screen bracket 112, so the first filter screen bracket 111 and the second filter screen bracket 112 are still connected together, such as Figure 8 (as shown), thus the filter body 12 on the first filter support 111 and the filter body 12 on the second filter support 112 can be cleaned or replaced;

[0133] During installation, the first filter support 111, the second filter support 112, and the second panel 22 are sequentially inserted into the second opening 622. Among the first filter support 111, the first panel 21, and the corresponding connector 3, the panel limiting block 233 of the first panel 21 aligns with the connector mounting groove 313, and the panel limiting block 233 of the first panel 21 passes through the connector mounting groove 313. This causes the upper connector 3 to slide upwards and the lower connector 3 to slide downwards, thus placing both connectors 3 in the first working position. The first panel 21 and the first filter support 111 are then connected. In this way, the first panel 21, the first filter support 111, the second filter support 112, and the second panel 22 are sequentially connected (e.g., ...). Figure 6a and Figure 6b As shown), the filter screen 1 is then installed in the mounting slot, which solves the problem that when the left side of the existing vertical ventilation equipment is set close to the left wall 72, the space on the left side of the housing 61 and the left wall 72 is small, making it impossible to remove and install the entire filter screen 1 from the left side of the housing 61.

[0134] When the right side of the vertical ventilation equipment is close to the right wall 73, the space between the right side of the housing 61 and the right wall 73 is small, while the space between the left side of the housing 61 and the left wall 72 is large. Therefore, the filter screen 1 can be removed and installed from the left side of the housing 61.

[0135] Specifically, when the filter screen 1 is disassembled, in the two corresponding connecting pieces 3 of the second panel 22 and the second filter screen support 112, the connecting piece 3 located on the upper side is slid downward, and the connecting piece 3 located on the lower side is slid upward, and then the two connecting pieces 3 are both in the second working position, and the second panel 22 and the second filter screen support 112 are in a separated state; in the two corresponding connecting pieces 3 of the first panel 21 and the first filter screen support 111, the connecting piece 3 located on the upper side is slid upward, and the connecting piece 3 located on the lower side is slid downward, and then the two connecting pieces 3 are both in the first working position, and the first panel 21 and the first filter screen support 111 are in a connected state; the first panel 21 is pulled to the left, and then the first panel 21, the first filter screen support 111 and the second filter screen support 112 can be sequentially pulled out from the first opening 621 (the external force applied to the first panel 21 is smaller than the magnetic force between the first filter screen support 111 and the second filter screen support 112, and the first filter screen support 111 and the second filter screen support 112 are still connected together, as shown in Figure 9 ), and then the filter screen body 12 on the first filter screen support 111 and the filter screen body 12 on the second filter screen support 112 can be cleaned or replaced;

[0136] When installed, the second filter screen support 112, the first filter screen support 111 and the first panel 21 are sequentially inserted at the first opening 621; in the second filter screen support 112, the second panel 22 and the corresponding connecting pieces 3, the panel limiting block 233 of the second panel 22 corresponds to the connecting piece installation slot 313 and passes through the connecting piece installation slot 313, the connecting piece 3 located on the upper side is slid upward, and the connecting piece 3 located on the lower side is slid downward, and then the two connecting pieces 3 are both in the first working position, and the second panel 22 and the second filter screen support 112 are in a connected state; in this way, the first panel 21, the first filter screen support 111, the second filter screen support 112 and the second panel 22 are sequentially connected (as shown in Figure 6a and Figure 6b ), and then the filter screen 1 is installed in the installation slot, solving the problem that when the right side of the existing vertical ventilation equipment is close to the right wall 73, the space between the right side of the casing 61 and the right wall 73 is small, and the entire filter screen 1 cannot be disassembled from the right side of the casing 61.

[0137] In summary, in the embodiment, the two adjacent filter screen supports 11 are connected by magnetic force, and the disassembly mode of the corresponding filter screen 1 can be selected according to the setting mode of the ventilation equipment; the disassembly mode is flexible, the disassembly process is simple, the difficulty of maintaining the filter screen 1 is reduced, the filter screen 1 can be cleaned or replaced in time, different needs of disassembling the filter screen 1 under different setting modes of the ventilation equipment are met, the disassembly space is not limited, and the problem that the filter screen 1 cannot be disassembled when the length of the filter screen 1 is large is avoided.

[0138] Preferably, the ventilation device is a cabinet air conditioner indoor unit 6; a fresh air duct is formed at the bottom of the casing 61, a fresh air inlet is formed at the rear wall of the casing 61, the fresh air inlet and the fresh air duct are communicated, the fresh air inlet and the outdoor are communicated through a fresh air pipe, and outdoor fresh air can enter the fresh air duct through the fresh air pipe and the fresh air inlet; the casing 61 forms a mounting groove at the side wall of the fresh air duct, and a filter screen 1 is arranged in the mounting groove; when the outdoor fresh air flows through the filter screen 1, the filter screen 1 filters the outdoor fresh air.

[0139] Embodiment 2

[0140] Different from embodiment 1, the positions of the first magnet 41 on the first filter screen support 111 and the positions of the second magnet 42 on the second filter screen support 112 are adjustable; according to the installation requirements, the positions of the first magnet 41 on the first filter screen support 111 and the positions of the second magnet 42 on the second filter screen support 112 can be adjusted, so that the relative positions of the first filter screen support 111 and the second filter screen support 112 can be adapted to different installation spaces, and the application range of the filter screen 1 is expanded.

[0141] Alternatively, the first magnet 41 has a plurality of different first connection positions, and the second magnet 42 has a plurality of different second connection positions; according to the installation requirements, the corresponding first connection position and the second connection position are connected, so that the relative positions of the first filter screen support 111 and the second filter screen support 112 can be adapted to different installation spaces, and the application range of the filter screen 1 is expanded.

[0142] Alternatively, the first magnet 41 is rotatably arranged on the first filter screen support 111 through a first rotating shaft, and the second magnet 42 is rotatably arranged on the second filter screen support through a second rotating shaft; when the first filter screen support 111 and the second filter screen support 112 are connected through the magnetic force between the first magnet 41 and the second magnet 42, the first filter screen support 111 and the second filter screen support 112 can rotate relative to each other; on the one hand, according to the installation requirements, the relative inclination angle between the main body surface of the first filter screen support 111 and the main body surface of the second filter screen support 112 can be adjusted, so that the filter screen 1 can be adapted to different installation spaces, and the application range of the filter screen 1 is expanded; on the other hand, the plurality of filter screen supports 11 of the filter screen 1 can be folded up, which is convenient for storage.

[0143] The exemplary embodiments of the present disclosure are specifically shown and described above. It should be understood that the present disclosure is not limited to the detailed structure, arrangement or implementation method described herein; on the contrary, the present disclosure is intended to cover various modifications and equivalent arrangements within the spirit and scope of the appended claims.

Claims

1. A filter screen, characterized by The filter screen assembly comprises a plurality of filter modules arranged in sequence, each of the filter modules comprises a filter screen support (11) and a filter screen body (12) arranged on the filter screen support (11); A magnetic structure is arranged between the filter screen supports (11) of each two adjacent filter modules, and the magnetic structure allows the adjacent two filter screen supports to be connected to each other and separated from each other.

2. The filter screen of claim 1, wherein, The filter screen supports (11) of the adjacent two filter modules comprise a first filter screen support (111) and a second filter screen support (112), the magnetic structure comprises a first magnet (41) arranged on one side of the first filter screen support (111) close to the second filter screen support (112) and a second magnet (42) arranged on one side of the second filter screen support (112) close to the first filter screen support (111), and the first magnet (41) and the second magnet (42) have opposite magnetic properties.

3. The filter screen of claim 2, wherein, The first filter screen support (111) and the first magnet (41) are connected through a first clamping structure, and the second filter screen support (112) and the second magnet (42) are connected through a second clamping structure.

4. A filter screen assembly characterized by, The filter screen assembly comprises a plurality of filter modules arranged in sequence, each of the filter modules comprises a filter screen support (11) and a filter screen body (12) arranged on the filter screen support (11); When the panel (2) and the filter screen support (11) at the head end are in the connected state and the panel (2) and the filter screen support (11) at the tail end are in the separated state, the panel (2) at the head end and the entire filter screen (1) can be pulled in the forward direction (511) of the first direction; When the panel (2) and the filter screen support (11) at the head end are in the separated state and the panel (2) and the filter screen support (11) at the tail end are in the connected state, the panel (2) at the tail end and the entire filter screen (1) can be pulled in the reverse direction (512) of the first direction; When the panel (2) and the filter screen support (11) at the head end and the panel (2) and the filter screen support (11) at the tail end are in the connected state, the panel (2) at the head end and part of the filter screen supports (11) can be pulled in the forward direction (511) of the first direction, and the panel (2) at the tail end and another part of the filter screen supports (11) can be pulled in the reverse direction (512) of the first direction. Wherein, the head end is the head end of the plurality of filter screen supports (11) as a whole, and the tail end is the tail end of the plurality of filter screen supports (11) as a whole.

5. The filter screen assembly of claim 4, wherein, The filter screen assembly further comprises a connecting piece (3), the connecting piece (3) movably connects the panel (2) and the corresponding filter screen support (11), and the connecting piece (3) has a first working position and a second working position; The panel (2) and the corresponding filter screen support (11) are in a connected state when the connecting piece (3) is in the first working position; the panel (2) and the corresponding filter screen support (11) are in a separated state when the connecting piece (3) is in the second working position. By switching the connecting piece (3) between the first working position and the second working position, the panel (2) and the corresponding filter screen support (11) can be switched between the connected state and the separated state.

6. The filter screen assembly of claim 5, wherein, The connecting piece (3) is provided with a first connecting part (31) and a second connecting part (32); in the panel (2) and the corresponding filter screen support (11), the first connecting part (31) and the panel (2) are movably connected through a first connecting structure, and the second connecting part (32) and the filter screen support (11) are movably connected through a second connecting structure. The first connecting structure and the second connecting structure have at least a limiting effect on the panel (2) and the corresponding filter screen support (11) in the first direction (511), the reverse direction of the first direction (512), the second direction (521), the reverse direction of the second direction (522), the third direction (531) and the reverse direction of the third direction (532) when the connecting piece (3) is in the first working position. The first direction is the length direction of the filter screen (1), the second direction is the width direction of the filter screen (1), and the third direction is the thickness direction of the filter screen (1).

7. The filter screen assembly of claim 6, wherein, One of the first connecting structure and the second connecting structure is a sliding connection structure, and the other is a plug-in connection structure; the sliding direction of the sliding connection structure is parallel to the plug-in direction of the plug-in connection structure.

8. The filter screen assembly of claim 7, wherein, The sliding connection structure includes a sliding groove and a sliding block; the first connecting part (31) and the panel (2) are connected through the cooperation of the sliding block and the sliding groove, and have at least a limiting effect on the panel (2) and the corresponding filter screen support (11) in the third direction (531) and the reverse direction of the third direction (532). The plug-in connection structure includes a plug pin (321) and a plug hole (141); the second connecting part (32) and the filter screen support (11) are connected through the cooperation of the plug pin (321) and the plug hole (141), and have at least a limiting effect on the panel (2) and the corresponding filter screen support (11) in the first direction (511), the reverse direction of the first direction (512), the second direction (521) and the reverse direction of the second direction (522).

9. The filter screen assembly of claim 8, wherein, The filter screen support (11) is formed with a support groove (14) at one end close to the panel (2); the support groove (14) extends along the second direction; the side wall of the support groove (14) in the second direction is formed with a plug hole (141); The connecting piece (3) is arranged in the support groove (14) and can slide along the support groove (14); the second connecting part (32) is formed with the plug pin (321), and the extension direction of the plug pin (321) is parallel to the second direction. The pin (321) and the socket (141) are connected and separated by sliding the connecting piece (3) along the second direction.

10. The filter screen assembly of claim 9, wherein, The sliding groove comprises a panel sliding groove (231) and a connecting piece sliding groove (311), and the extending directions of the panel sliding groove (231) and the connecting piece sliding groove (311) are parallel to the second direction. The panel (2) is provided with a panel slot (23) at one end close to the filter screen support (11), and the panel slot (23) is provided with the panel sliding groove (231) and the panel sliding block (232) on the side wall close to the filter screen support (11), and the panel sliding block (232) is away from the panel slot (23). The first connecting part (31) is provided with the connecting piece sliding groove (311) and the connecting piece sliding block (312). The connecting piece sliding block (312) and the panel sliding groove (231) are matched, and the panel sliding block (232) and the connecting piece sliding groove (311) are matched, so that the connecting piece (3) slides along the second direction, and the panel (2) and the corresponding filter screen support (11) have limiting effects in the positive direction (531) of the third direction and the reverse direction (532) of the third direction.

11. The filter screen assembly of claim 10, wherein, The first connecting part (31) is provided with a connecting piece mounting groove (313) at one end of the connecting piece sliding groove (311), and the connecting piece mounting groove (313) is in communication with the connecting piece sliding groove (311). The panel (2) is provided with a panel limiting block (233) at the end of the panel sliding block (232), and when the panel limiting block (233) and the panel slot (23) on the side wall close to the filter screen support (11) are matched with the first connecting part (31), the panel (2) and the corresponding filter screen support (11) have limiting effects in the positive direction (511) of the first direction and the reverse direction (512) of the first direction. By matching the panel limiting block (233) with the connecting piece mounting groove (313) and making the panel limiting block (233) pass through the connecting piece mounting groove (313), the connecting piece sliding block (312) and the panel sliding groove (231) are matched, and the panel sliding block (232) and the connecting piece sliding groove (311) are matched.

12. The filter screen assembly of claim 11, wherein, The connecting piece mounting groove (313) and the connecting piece sliding groove (311) form an L-shaped structure, and the panel limiting block (233) and the panel sliding block (232) form an L-shaped structure.

13. The filter screen assembly of claim 5, wherein, Each panel (2) and the corresponding filter screen support (11) are connected by two connecting pieces (3), and the two connecting pieces (3) are spaced apart and movably arranged in the second direction. By moving the two connecting pieces (3) away from each other, the two connecting pieces (3) are both in the first working position; by moving the two connecting pieces (3) close to each other, the two connecting pieces (3) are both in the second working position.

14. A ventilation device, characterized in that The filter screen assembly of any one of claims 4 to 13 is arranged in a casing (61) having an installation slot formed in the interior thereof, and first and second openings (621, 622) formed in the side wall thereof and arranged opposite to each other, the first and second openings (621, 622) being in communication with the installation slot. The panel (2) comprises a first panel (21) arranged at the first opening (621) in a push-pull manner and a second panel (22) arranged at the second opening (622) in a push-pull manner, and the filter screen (1) is arranged in the installation slot and between the first and second panels (21, 22). When the first panel (21) and the corresponding filter screen support (11) are in the connected state and the second panel (22) and the corresponding filter screen support (11) are in the separated state, the first panel (21) and the entire filter screen (1) can be pulled out through the first opening (621). When the first panel (21) and the corresponding filter screen support (11) are in the separated state and the second panel (22) and the corresponding filter screen support (11) are in the connected state, the second panel (22) and the entire filter screen (1) can be pulled out through the second opening (622). When the first panel (21) and the corresponding filter screen support (11) and the second panel (22) and the corresponding filter screen support (11) are in the connected state, the first panel (21) and a part of the filter screen (1) can be pulled out through the first opening (621), and the second panel (22) and another part of the filter screen (1) can be pulled out through the second opening (622).

15. A ventilation device according to claim 14, characterised in that The ventilation device is a cabinet-type air conditioner indoor unit (6).

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