Filtering device and air conditioning device comprising same

Abstract

The invention discloses a filtering device and an air conditioning device. The filtering device comprises a mounting frame and a locking device detachably connected to the mounting frame. The mounting frame includes a base and a frame wall extending away from the base and defining a mounting area for the filter. The locking device comprises a lock shell, a lock hook and an operation piece, wherein the lock hook and the operation piece are movably connected to the lock shell. The latch hook and the operating part are operatively connected with each other, so that when the operating part moves from the third position to the fourth position, the latch hook rotates from the first position to the second position, and when the operating part moves from the fourth position to the third position, the latch hook rotates from the second position to the first position. When the locking device is connected to the installation frame and the lock hook is located at the first position, the lock hook hooks an installation hole in the frame wall so as to lock the lock shell on the installation frame, and therefore the filter located in the installation area is kept between the lock shell and the base. When the locking device is connected to the mounting frame and the latch hook is located at the second position, the latch hook is withdrawn from the mounting hole of the frame wall.

Description

Technical Field

[0001] This application generally relates to the field of air filtration technology, and more particularly to filtration devices and air conditioning devices including such filtration devices. Background Technology

[0002] In the prior art, air filtration devices used in air conditioners and other similar appliances include a mounting frame and multiple filters. The mounting frame forms multiple mounting areas, and the filters are installed one-to-one in each of these areas. Each filter is secured to its mounting area by four locking devices (usually spring clips or bolt clips) at its four corners. Summary of the Invention

[0003] Through long-term observation and research, the inventors of this application discovered that the installation and removal of each filter in existing filtration devices requires four operations of spring clips or bolt clips, resulting in low installation and removal efficiency. Taking a medium-sized air handling unit (based on an air volume of 40,000 m³ / h) as an example, each stage of air filtration typically requires the installation of 12 filters and 48 locking devices, with each stage requiring 48 operations of spring clips or bolt clips for installation and removal.

[0004] To at least partially solve the above-mentioned technical problems, according to a first aspect of this application, a filtering device is provided. The filtering device includes a mounting frame and a locking device. The mounting frame includes a base and a frame wall. The frame wall extends from the base in a direction away from the base and defines a mounting area for the filter, and the frame wall has mounting holes. The locking device is detachably connected to the mounting frame and includes a lock housing, a lock hook, and an operating member. The lock hook is rotatably connected to the lock housing and configured to switch between a first position and a second position. The operating member is movably connected to the lock housing and configured to switch between a third position and a fourth position. The lock hook and the operating member are operatively connected such that when the operating member moves from the third position to the fourth position, the lock hook rotates from the first position to the second position, and when the operating member moves from the fourth position to the third position, the lock hook rotates from the second position to the first position. When the locking device is connected to the mounting frame and the locking hook is in the first position, the locking hook engages with the mounting hole in the frame wall to lock the lock case onto the mounting frame, thereby holding the filter located in the mounting area between the lock case and the base. When the locking device is connected to the mounting frame and the locking hook is in the second position, the locking hook retracts from the mounting hole in the frame wall.

[0005] In some embodiments, the locking device further includes an elastic element connected between the lock housing and the operating member or between the lock housing and the locking hook to provide an elastic force that returns the locking hook to the first position and / or holds the locking hook in the first position.

[0006] In some embodiments, the operating member moves between the third position and the fourth position along the height direction of the lock housing.

[0007] In some embodiments, the actuating member includes a proximal end and a distal end opposite each other in the height direction, the proximal end being located between the locking hook and the distal end, and the distal end being located outside the lock housing, wherein the distal end moves toward the lock housing as the actuating member moves from the third position to the fourth position.

[0008] In some embodiments, the locking device further includes a connecting shaft extending perpendicular to the height direction and fixedly connected to one of the operating member and the locking hook, the other of the operating member and the locking hook including an oblong hole with a cross-section parallel to the height direction, the connecting shaft being inserted into the oblong hole and configured to move between opposite ends along the length of the oblong hole, thereby operably connecting the locking hook and the operating member.

[0009] In some embodiments, the lock hook includes the oblong hole and a pivot portion spaced apart from the oblong hole, the lock hook being rotatably connected to the lock housing via the pivot portion.

[0010] In some embodiments, the locking device includes a plurality of said locking hooks, the plurality of locking hooks including a first locking hook and a second locking hook, the first locking hook and the second locking hook being connected to the operating member via the same said connecting shaft or via two said connecting shafts respectively.

[0011] In some embodiments, the first locking hook and the second locking hook are located on the same side of the transverse direction of the operating member or on opposite sides of the transverse direction of the operating member, the transverse direction being perpendicular to the height direction.

[0012] In some embodiments, the first locking hook and the second locking hook are oriented in opposite directions.

[0013] In some embodiments, the first locking hook and the second locking hook are respectively connected to the operating element via two mutually perpendicular connecting shafts.

[0014] In some embodiments, the mounting frame has a plurality of mounting areas for mounting a plurality of filters, wherein the plurality of mounting areas includes an adjacent first mounting area and a second mounting area. When the locking device is connected to the mounting frame and the locking hook is in the first position, the first locking hook and the second locking hook engage the mounting hole communicating with the first mounting area and the second mounting area, thereby enabling the two filters located in the first mounting area and the second mounting area respectively to be held between the lock housing and the base.

[0015] In some embodiments, the mounting frame has a plurality of mounting areas for mounting a plurality of filters, wherein the plurality of mounting areas include a first mounting area, a second mounting area, a third mounting area, and a fourth mounting area that are adjacent to each other. When the locking device is connected to the mounting frame and the locking hook is in the first position, the first locking hook engages the mounting hole connecting the first mounting area and the second mounting area, and the second locking hook engages the mounting hole connecting the third mounting area and the fourth mounting area, thereby enabling the four filters located in the first mounting area, the second mounting area, the third mounting area, and the fourth mounting area to be held between the lock housing and the base.

[0016] In some embodiments, the lock housing includes a first half-shell and a second half-shell, which are detachably connected by a plurality of plug-in structures. The pivot portion of one or more of the lock hooks is rotatably fitted onto one or more of the plurality of plug-in structures.

[0017] In some embodiments, the plurality of plug-in structures include a first plug-in structure and a second plug-in structure. The first half-shell includes a first shaft and a first sleeve, and the second half-shell includes a second shaft and a second sleeve. The first shaft is at least partially inserted into the second sleeve to form the first plug-in structure, and the second shaft is at least partially inserted into the first sleeve to form the second plug-in structure. One or more locking hooks are rotatably fitted onto the first shaft and / or the second shaft.

[0018] In some embodiments, the first half-shell and the second half-shell have the same structure.

[0019] In some embodiments, the lock housing includes a bottom surface located at one end in its height direction and perpendicular to the height direction, the bottom surface of the lock housing serving to abut against the filter. The lock hook includes a hook tip located within the lock housing and a connecting portion connecting the hook tip and the lock housing, wherein the hook tip includes a connecting end connected to the connecting portion and a free end away from the connecting portion, as well as upper and lower edges opposite each other in the height direction. When the locking device is connected to the mounting frame and the lock hook is in the first position, the hook tip is inserted into the mounting hole, the connecting end and the free end being located on opposite sides of the mounting hole.

[0020] In some embodiments, when the lock hook is in the first position, the lower edge of the hook tip extends obliquely from the connecting end to the free end in a direction away from the bottom surface of the lock case, such that during the process of installing the lock case to the mounting frame, the lock hook can rotate to the second position under the thrust exerted by the frame wall on the lower edge.

[0021] In some embodiments, when the lock hook is in the first position, the upper edge of the hook tip extends obliquely from the connecting end to the free end in a direction away from the bottom surface of the lock case.

[0022] According to a second aspect of this application, this application provides an air conditioning device that includes the aforementioned filter device.

[0023] Other objects and advantages of this application will become apparent from the following description of the application with reference to the accompanying drawings, and will help to provide a comprehensive understanding of the application. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of some components of an air conditioning device according to an embodiment of this application; Figure 2A yes Figure 1 A partial schematic diagram of the filtering device in the image shows the first locking device and its adjacent components; Figure 2B Is it removal? Figure 2A A schematic diagram of some of the components; Figure 2C yes Figure 2B Enlarged view of point A in the image; Figure 3A yes Figure 2A A three-dimensional schematic diagram of the first locking device from one perspective; Figure 3B yes Figure 3A A three-dimensional schematic diagram of the first locking device from another perspective; Figure 3C yes Figure 3A A cross-sectional view of the first locking device in the middle; Figure 4 yes Figure 3A An exploded view of the lock case of the first locking device in the design; Figure 5A yes Figure 2A The first locking device is about to be connected to the mounting frame in a partial cross-sectional view, where a portion of the lock housing has been removed; Figure 5B yes Figure 5A A partial sectional view of the first locking device in the frame when it is connected to the mounting frame but not in a locked state; Figure 5C yes Figure 5A A partial sectional view of the first locking device in the mounting frame when it is connected to the mounting frame and in the locked state; Figure 5D yes Figure 5A A partial cross-sectional view of the first locking device in the frame when it is connected to and unlocked; Figure 5E yes Figure 5A A partial sectional view of the first locking device being removed from the mounting frame; Figure 6A yes Figure 1 Another partial schematic diagram of the filtering device shows the second locking device and its adjacent components; Figure 6B Is it removal? Figure 6A A schematic diagram of some of the components; Figure 6C yes Figure 6B Enlarged view of point B in the image; Figure 7A yes Figure 6A A three-dimensional schematic diagram of the second locking device from one perspective; Figure 7B yes Figure 6A A three-dimensional schematic diagram of the second locking device from another perspective, in which a portion of the lock housing has been removed; Figure 8A yes Figure 1 Another partial schematic diagram of the filtering device shows the third locking device and its adjacent components; Figure 8B Is it removal? Figure 8A A schematic diagram of some of the components; Figure 9A yes Figure 8A A three-dimensional schematic diagram of the third locking device from one perspective; Figure 9B yes Figure 9AA three-dimensional schematic diagram of the third locking device from another perspective; Figure 9C yes Figure 9A A partially exploded diagram of the third locking device in the design; Figure 10 This is a partial cross-sectional view of a locking device according to another embodiment of this application, wherein a portion of the lock housing has been removed. Detailed Implementation

[0025] Various specific embodiments of this application will now be described with reference to the accompanying drawings, which form part of this specification. It should be understood that although directional terms such as "front," "rear," "upper," "lower," "left," "right," "top," and "bottom" are used in this application to describe various exemplary structural parts and elements, their use is merely for illustrative purposes and is based on the exemplary orientations shown in the accompanying drawings. Since the embodiments disclosed in this application can be arranged in different orientations, these directional terms are for illustrative purposes only and should not be considered as limiting.

[0026] It should be understood that the accompanying drawings are not necessarily drawn to scale. In some cases, details that are not necessary for understanding the invention or that make other details difficult to perceive may be omitted. Where appropriate, similar or identical reference numerals are used to denote similar or identical parts.

[0027] Figure 1 This is a schematic diagram of some components of an air conditioning device 1 according to an embodiment of this application. Figure 1 As shown, the air conditioning unit 1 includes a housing 20 and a filter device 10 disposed within the housing 20. The filter device 10 mainly includes a mounting frame 11, multiple filters 13, and multiple locking devices. The multiple locking devices include a first locking device 12a, a second locking device 12b, and a third locking device 12c. The multiple locking devices are detachably connected to the mounting frame 11 for fixing and pressing the multiple filters 13 within the mounting frame 11.

[0028] Specifically, four third locking devices 12c are respectively disposed at the four corners of the mounting frame 11 to fix and press the filters 13 located at the four corners of the mounting frame 11. Multiple second locking devices 12b are disposed at the four edges of the mounting frame 11 to fix and press the filters 13 located at the four edges of the mounting frame 11; each second locking device 12b can simultaneously fix and press two adjacent filters 13. First locking devices 12a are disposed in the middle of the mounting frame 11; each first locking device 12a is used to simultaneously fix and press four adjacent filters 13, as detailed later.

[0029] Therefore, the number of locking devices of the filtering device 10 is small, which can reduce costs and improve the efficiency of installation and disassembly operations. Taking Figure 1 the filtering device 10 shown in FIG. 134 including 12 filters 13 as an example, only 20 locking devices are required to install 12 filters 13. Compared with the prior art where 48 locking devices are required for 12 filters, the number of locking devices and the number of installation and disassembly operations are greatly reduced, thereby reducing costs and improving production efficiency.

[0030] It should be noted that although in Figure 1 the embodiment of FIG. 137, the filtering device 10 includes 12 filters 13, in other embodiments, the filtering device 10 may also include other numbers of filters 13, and the number of the first locking device 12a and / or the second locking device 12b is adjusted accordingly.

[0031] Figure 2A FIG. 140 Figure 1 is a partial schematic view of the filtering device 10 in FIG. 141, which shows the first locking device 12a and its adjacent components. Figure 2B FIG. 142 Figure 2A is a schematic view after removing some components in FIG. 143. Figure 2C FIG. 144 Figure 2B is an enlarged view of part A in FIG. 145.

[0032] As Figures 2A to 2C shown in FIG. 148, the mounting frame 11 includes a base 111 and a frame wall 112. The frame wall 112 extends from the base 111 in a direction away from the base and defines an installation area 114 for the filter 13. The frame wall 112 is provided with mounting holes 113, and the mounting holes 113 penetrate through the frame wall 112 and communicate with adjacent installation areas 114. Each of the four corners of the installation area 114 corresponds to two mounting holes, and the two mounting holes are respectively provided on two mutually perpendicular frame walls 112 defining the corner.

[0033] A plurality of installation areas 114 are formed in the mounting frame 11, which are respectively used for installing a plurality of filters 13. The first locking device 12a is used to simultaneously fix and compress four filters 13 located in the first installation area 114a, the second installation area 114b, the third installation area 114c, and the fourth installation area 114d in a plurality of installation areas 114 respectively. The first installation area 114a, the second installation area 114b, the third installation area 114c, and the fourth installation area 114d are adjacent to each other and arranged in two rows and two columns, forming a "field" - shaped structure. The first locking device 12a is detachably connected to the center position of the "field" - shaped structure.

[0034] In the illustrated embodiment, the mounting frame 11 is composed of multiple independent sub-frames 110 connected together. Each sub-frame 110 includes four frame walls 112 and defines a mounting area 114. Two adjacent mounting areas 114 are separated by two parallel frame walls 112, and the mounting holes 113 on the two frame walls 112 are in the same position.

[0035] However, this application is not limited to the embodiments shown in the figure. For example, in some other embodiments, the mounting frame 11 may also be formed as an integral structure, with its interior divided into multiple compartments by frame walls 112, and two adjacent mounting areas 114 are separated by only one frame wall 112.

[0036] Figures 3A to 5E The specific structure and working principle of the first locking device 12a are shown. Wherein: Figure 3A yes Figure 2A A three-dimensional schematic diagram of the first locking device 12a in the middle, viewed from one perspective; Figure 3B yes Figure 3A A three-dimensional schematic diagram of the first locking device 12a from another perspective; Figure 3C yes Figure 3A A cross-sectional view of the first locking device 12a in the middle; Figure 4 yes Figure 3A An exploded view of the lock case 121 of the first locking device 12a in the middle; Figure 5A yes Figure 2A A partial cross-sectional view of the first locking device 12a in the middle about to be connected to the mounting frame 11, wherein the second half shell 1212 of the lock housing 121 has been removed; Figure 5B yes Figure 5A A partial cross-sectional view of the first locking device 12a connected to the mounting frame 11 but not in a locked state; Figure 5C yes Figure 5A A partial cross-sectional view of the first locking device 12a in the mounting frame 11 when it is connected to the mounting frame 11 and is in a locked state; Figure 5D yes Figure 5A A partial cross-sectional view of the first locking device 12a connected to the mounting frame 11 and unlocked; Figure 5E yes Figure 5A A partial cross-sectional view of the first locking device 12a being removed from the mounting frame 11.

[0037] like Figures 2A to 5E As shown, the first locking device 12a mainly includes a lock housing 121, a lock hook 122, an operating member 123, an elastic member 124, and a connecting shaft 125.

[0038] The locking housing 121 is used to limit the position of the filter 13 and to provide support for the locking hook 122, operating member 123, elastic member 124, and connecting shaft 125. The locking housing 121 includes a locking housing bottom surface 1210 located at one end in its height direction Z (i.e., the lower end according to the orientation shown in the figure) and perpendicular to the height direction Z. The locking housing bottom surface 1210 is used to abut against the frame of the filter 13 to hold the filter 13 between the locking housing 121 and the base 111, and to press the filter 13 against the sealing gasket 14 disposed between the filter 13 and the base 111 to prevent leakage and ensure filtration efficiency.

[0039] The locking hook 122 is rotatably connected to the lock housing 121 and is configured in a first position relative to the lock housing 121 (e.g., Figures 2B-2C , Figure 5A and Figure 5C (as shown) and second position (as shown) Figure 5D and Figure 5E Switch between (as shown).

[0040] like Figures 2A-2C and Figure 5C As shown, when the first locking device 12a is connected to the mounting frame 11 and the locking hook 122 is in the first position, the locking hook 122 hooks the mounting hole 113 of the frame wall 112 to lock the lock case 121 onto the mounting frame 11, thereby enabling the filter 13 located in the mounting area 114 to be held between the lock case 121 and the base 111.

[0041] Specifically, the first locking device 12a includes two locking hooks 122 spaced apart in a transverse direction X, namely a first locking hook 122a and a second locking hook 122b, wherein the transverse direction X is perpendicular to the height direction Z. When the first locking device 12a is connected to the mounting frame 11 and the first locking hook 122a and the second locking hook 122b are in the first position, the first locking hook 122a hooks into the mounting hole 113 connecting the first mounting area 114a and the second mounting area 114b, and the second locking hook 122b hooks into the mounting hole 113 connecting the third mounting area 114c and the fourth mounting area 114d, thereby enabling the four filters 13 located in the first mounting area 114a, the second mounting area 114b, the third mounting area 114c, and the fourth mounting area 114d to be held between the lock housing 121 and the base 111.

[0042] like Figure 5D and Figure 5E As shown, when the first locking device 12a is connected to the mounting frame 11 and the locking hook 122 is in the second position, the locking hook 122 is disengaged from the mounting hole 113 in the frame wall 112, thereby allowing the first locking device 12a to be removed from the mounting frame 11.

[0043] like Figures 2A to 5EAs shown, the operating element 123 is movably connected to the lock housing 121 and is configured in a third position relative to the lock housing 121 (e.g., Figure 5A and Figure 5C (as shown) and the fourth position (as shown) Figure 5D and Figure 5E Switch between (as shown).

[0044] The locking hook 122 and the operating member 123 are operatively connected such that when an external force is applied to the operating member 123, the operating member 123 can drive the locking hook 122 to move, and when an external force is applied to the locking hook 122, the locking hook 122 can drive the operating member 123 to move. The operative connection between the locking hook 122 and the operating member 123 is configured such that when the operating member 123 moves from the third position to the fourth position, the locking hook 122 rotates from the first position to the second position, and when the operating member 123 moves from the fourth position to the third position, the locking hook 122 rotates from the second position to the first position.

[0045] The operating member 123 extends along the height direction Z of the lock housing 121 and moves up and down between a third position and a fourth position along the height direction Z to facilitate operation. However, this application is not limited to the illustrated embodiment. For example, in other embodiments, the operating member 123 may also move in other directions or swing relative to the lock housing 121.

[0046] See also Figures 2A to 5E The operating member 123 includes a rod portion 123c extending along the height direction Z, a proximal end 123a and a distal end 123b opposite each other in the height direction Z, and a boss portion 123d located between the proximal end 123a and the distal end 123b. The rod portion 123c is movably inserted into the lock housing 121 via a through hole 1215 provided in the top wall 1214 of the lock housing 121. The through hole 1215 can guide the movement of the operating member 123. The proximal end 123a is located between the lock hook 122 and the distal end 123b for easy connection to the lock hook 122. The distal end 123b is located outside the lock housing 121 for easy operation by the user.

[0047] When the operating member 123 moves from the third position to the fourth position, the distal end 123b moves toward the lock housing 121, that is, the operating member 123 moves downward and toward the bottom of the lock housing 121 for easier operation, as described later. The boss portion 123d protrudes outward transversely in the height direction Z from the surface of the rod portion 123c. When the operating member 123 moves upward, the boss portion 123d can abut against the lower surface of the top wall 1214 of the lock housing 121 to limit the extreme position of the upward movement of the operating member 123, that is, the third position.

[0048] The locking hook 122 includes an oblong hole 1224 and a pivot portion 1223 spaced apart from the oblong hole 1224. The locking hook 122 is rotatably connected to the lock housing 121 via the pivot portion 1223. The cross-section of the oblong hole 1224 is parallel to the height direction Z. A connecting shaft 125 extends perpendicular to the height direction Z and is fixedly connected to the operating member 123. The connecting shaft 125 is inserted into the oblong hole 1224 and configured to move between opposite ends along the length of the oblong hole 1224, thereby operatively connecting the locking hook 122 and the operating member 123 to achieve the conversion between translational movement of the operating member 123 and rotation of the locking hook 122. One end of the oblong hole 1224 defines the extreme position of downward movement of the operating member 123, namely the fourth position.

[0049] However, this application is not limited to the illustrated embodiments. For example, in other embodiments, the oblong hole 1224 may be provided on the operating member 123, and the connecting shaft 125 may be fixedly connected to the locking hook 122. In still other embodiments, the locking hook 122 and the operating member 123 may also be interoperably connected by a cam mechanism or other mechanisms.

[0050] See also Figures 2A to 5E In one embodiment, the first locking device 12a includes two connecting shafts 125, which are respectively connected to opposite sides in the transverse X direction of the proximal end 123a of the operating member 123. A first locking hook 122a and a second locking hook 122b are connected to the operating member 123 via the two connecting shafts 125, thereby being located on opposite sides in the transverse X direction of the operating member 123. In another embodiment, the first locking device 12a includes a connecting shaft 125 extending in the transverse X direction and passing through the proximal end 123a of the operating member 123. The first locking hook 122a and the second locking hook 122b are respectively connected to opposite sides in the transverse X direction of the connecting shaft 125, thereby being located on opposite sides in the transverse X direction of the operating member 123.

[0051] In some embodiments, the operating element 123 and the connecting shaft 125 are plastic injection molded parts. Optionally, the operating element 123 and the connecting shaft 125 are integrally formed plastic injection molded parts. In other embodiments, the operating element 123 and / or the connecting shaft 125 are made of metal.

[0052] In the illustrated embodiment, the first locking device 12a includes two locking hooks 122. However, this application is not limited to the illustrated embodiment. For example, in other embodiments, the first locking device 12a may include three or four locking hooks 122, with the third and / or fourth locking hooks 122 connected to one or opposite sides of the longitudinal direction Y of the operating member 123 via a connecting shaft 125 extending along the longitudinal direction Y, which is perpendicular to the lateral direction X and the height direction Z, respectively.

[0053] See also Figures 2A to 5E The lock hook 122 includes a hook tip 1222 located within the lock housing 121 and a connecting portion 1221 connecting the hook tip 1222 and the lock housing 121. The hook tip 1222 includes a connecting end 1222a connected to the connecting portion 1221 and a free end 1222b away from the connecting portion 1221, as well as an upper edge 1222c and a lower edge 1222d opposite each other in the height direction Z.

[0054] When the first locking device 12a is connected to the mounting frame 11 and the locking hook 122 is in the first position, the hook tip 1222 is inserted into the mounting hole 113, and the connecting end 1222a and the free end 1222b are located on both sides of the mounting hole 113.

[0055] When the lock hook 122 is in the first position, the lower edge 1222d of the hook tip 1222 extends obliquely from the connecting end 1222a to the free end 1222b away from the bottom surface 1210 of the lock case, so that during the process of installing the lock case 121 to the mounting frame 11, the lock hook 122 can rotate to the second position under the action of the thrust exerted by the frame wall 112 on the lower edge 1222d, as described later.

[0056] When the hook 122 is in the first position, the upper edge 1222c of the hook tip 1222 extends obliquely from the connecting end 1222a to the free end 1222b in a direction away from the bottom surface 1210 of the lock case, thereby reliably hooking the mounting hole 113 to prevent the hook 122 from coming loose.

[0057] Optionally, the locking hook 122 is stamped from an alloy or other metal material that is not easily corroded, so as to have good mechanical properties and be easy to manufacture.

[0058] In the illustrated embodiment, the first locking hook 122a and the second locking hook 122b face opposite directions, meaning the hook tips 1222 of the first locking hook 122a and the second locking hook 122b face opposite directions. Furthermore, the first locking hook 122a and the second locking hook 122b are configured to rotate simultaneously in opposite directions. This makes the structure of the first locking device 12a more symmetrical and the force more balanced, facilitating design, manufacturing, and installation, and improving the stability of the connection between the first locking device 12a and the mounting frame 11. However, this application is not limited to the illustrated embodiment. For example, in other embodiments, the first locking hook 122a and the second locking hook 122b may face the same direction.

[0059] See also Figures 2A to 5EAn elastic element 124 is connected between the lock housing 121 and the operating element 123 to provide an elastic force that returns the locking hook 122 to the first position and / or holds the locking hook 122 in the first position. The elastic element 124 enables the locking hook 122 to be reliably held in the first position to prevent the locking hook 122 from becoming loose due to vibration during the transport or operation of the air conditioning unit 1 or the filter unit 10, thereby reliably securing and pressing the filter 13 in the mounting frame 11 and improving the reliability of the air conditioning unit 1 and the filter unit 10.

[0060] exist Figures 2A to 5E In the illustrated embodiment, the elastic element 124 is a compression spring. One end of the compression spring presses against the lower surface of the distal end 123b of the operating element 123, and the other end presses against the upper surface of the top wall 1214 of the lock housing 121, and is always in a compressed state to provide an elastic force that returns the operating element 123 to the third position and / or holds the operating element 123 in the third position, thereby causing the locking hook 122 to return to the first position and / or holding the locking hook 122 in the first position through the operating element 123.

[0061] However, this application is not limited to the illustrated embodiments. For example, in other embodiments, the elastic element 124 may also be a tension spring, a torsion spring, or other elastic elements, and the connection position and connection method between the elastic element 124 and the lock housing 121, as well as the lock hook 122 or the operating element 123, may be adjusted accordingly. In still other embodiments, the elastic element 124 may not be provided, and the lock hook 122 may be manually returned to the first position, and the lock hook 122 may be held in the first position by other mechanisms.

[0062] See also Figures 2A to 5E The lock housing 121 includes a first half-shell 1211 and a second half-shell 1212. The first half-shell 1211 and the second half-shell 1212 have the same structure and are detachably connected by a plurality of plug-in structures 1213 to facilitate design, manufacture and assembly. The lock housing 121 may be made of injection molded material, metal or other materials.

[0063] However, this application is not limited to the illustrated embodiments. For example, in other embodiments, the structures of the first half-shell 1211 and the second half-shell 1212 may be different, and / or the first half-shell 1211 and the second half-shell 1212 may be connected to each other in other ways. Furthermore, in the illustrated embodiment, the main body of the lock housing 121 is generally square-shaped, but in other embodiments, the lock housing 121 may be formed as a cylinder or other shapes.

[0064] See also Figures 2A to 5EThe first half-shell 1211 and the second half-shell 1212 are opposite each other in the transverse X direction and define the inner cavity of the lock housing 121. A plurality of plug-in structures 1213 extend in the transverse X direction. The plurality of plug-in structures 1213 include a first plug-in structure 1213a and a second plug-in structure 1213b located in the inner cavity of the lock housing 121.

[0065] The first half-shell 1211 includes a first sidewall 1211c, and a first shaft 1211a and a first sleeve 1211b connected to the inner surface of the first sidewall 1211c. The first shaft 1211a and the first sleeve 1211b are spaced apart along the longitudinal direction Y, and extend from the first sidewall 1211c in a direction away from the first sidewall 1211c along the transverse direction X, respectively.

[0066] The second half-shell 1212 includes a second sidewall 1212c, and a second shaft 1212a and a second sleeve 1212b connected to the inner surface of the second sidewall 1212c. The second shaft 1212a and the second sleeve 1212b are spaced apart along the longitudinal direction Y, and extend from the second sidewall 1212c in a direction away from the second sidewall 1212c along the transverse direction X, respectively.

[0067] The first sidewall 1211c and the second sidewall 1212c are spaced apart and opposite each other in the transverse direction X. The first shaft 1211a is at least partially inserted into the second sleeve 1212b to form a first insertion structure 1213a, and the second shaft 1212a is at least partially inserted into the first sleeve 1211b to form a second insertion structure 1213b.

[0068] The pivot portion 1223 of the first locking hook 122a and the second locking hook 122b is rotatably fitted onto the first plug-in structure 1213a and the second plug-in structure 1213b, respectively, to simplify the structure of the first locking device 12a and make the structure of the first locking device 12a compact.

[0069] Specifically, the first shaft 1211a includes a first shoulder 1211d and a first pin 1211e. The first pin 1211e is at least partially inserted into the second sleeve 1212b. The first shoulder 1211d protrudes radially outward relative to the first pin 1211e and faces the end face 1212d of the second sleeve 1212b. A first locking hook 122a is rotatably fitted onto the first pin 1211e and is limited in the transverse X direction by the first shoulder 1211d and the end face 1212d of the second sleeve 1212b. Similarly, a second locking hook 122b is rotatably fitted onto the second shaft 1212a and is limited in the transverse X direction by the corresponding shoulder and the end face of the first sleeve 1211b.

[0070] The lock housing 121 has four clearance grooves 1216 formed on its sidewalls. These grooves are located on both sides of the lock housing 121 in the transverse X direction and on both sides in the longitudinal Y direction, extending upwards from the bottom surface 1210. The clearance grooves 1216 penetrate the sidewalls of the lock housing 121 at a certain height to avoid the frame wall 112 of the mounting frame 11. Two of the clearance grooves 1216 are formed by splicing stepped structures 1218 formed below the mating surfaces 1217 of the first half-shell 1211 and the second half-shell 1212, respectively, for ease of manufacturing. The other two clearance grooves 1216 are formed on the first sidewall 1211c and the second sidewall 1212c, respectively.

[0071] The first half-shell 1211 and the second half-shell 1212 are centrally symmetrical with respect to the axis of the through hole 1215 on the top wall 1214 of the lock housing 121. The through hole 1215 is formed by joining two half-holes formed respectively in the first half-shell 1211 and the second half-shell 1212. The operating member 123 is centrally symmetrical with respect to the axis of the through hole 1215. The axes of the first shaft 1211a and the first sleeve 1211b are equidistant from the axis of the through hole 1215. The axes of the second shaft 1212a and the second sleeve 1212b are equidistant from the axis of the through hole 1215. The first locking hook 122a and the second locking hook 122b are equidistant from the axis of the through hole 1215. Thus, the first locking device 12a is generally centrally symmetrical with respect to the axis of the through hole 1215, which facilitates design, manufacturing and installation, and makes the force on the first locking device 12a more balanced, thereby improving stability and reliability.

[0072] The following reference Figures 2A-2C and Figures 5A-5E The instructions describe the procedures for installing the first locking device 12a onto the mounting frame 11 and removing it from the mounting frame 11.

[0073] Before installing the first locking device 12a to the mounting frame 11, the corresponding filter 13 and sealing gasket 14 have been installed in the first mounting area 114a, the second mounting area 114b, the third mounting area 114c, and the fourth mounting area 114d. The process of installing the first locking device 12a to the mounting frame 11 includes the following steps: 1. Move the first locking device 12a above the mounting frame 11 so that the four clearance slots 1216 are aligned with the corresponding frame walls 112. At this time, the elastic element 124 keeps the locking hook 122 in the first position. 2. Holding the distal end 123b of the operating component 123, press the first locking device 12a downwards until the lower edge 1222d of the locking hook 122 contacts the upper edge of the frame wall 112, as shown. Figure 5A As shown; 3. Continue pressing down on the operating member 123. At this time, because the locking hook 122 is stopped by the frame wall 112, the operating member 123 moves downward relative to the lock housing 121 and toward the fourth position, driving the connecting shaft 125 to move in the oblong hole 1224 of the locking hook 122, thereby driving the locking hook 122 to rotate clockwise relative to the lock housing 121 toward the second position; in addition, the thrust exerted by the frame wall 112 on the inclined lower edge 1222d of the locking hook 122 also causes the locking hook 122 to rotate clockwise relative to the lock housing 121 toward the second position, so that the locking hook 122 can avoid the frame wall 112, thereby allowing the lock housing 121 to continue to move downward, as... Figure 5B As shown; 4. Continue to press the operating part 123 down to the fourth position, so that the bottom surface 1210 of the lock case abuts against and presses against the corresponding filter 13; 5. Release the operating member 123, causing it to move upward relative to the lock housing 121 to the third position under the elastic force of the elastic member 124. This, along with the connecting shaft 125 and the oblong hole 1224, causes the locking hook 122 to rotate counterclockwise relative to the lock housing 121 to the first position. This allows the hook tip 1222 of the locking hook 122 to insert into and hook onto the mounting hole 113 on the frame wall 112, thus locking the lock housing 121 onto the mounting frame 11. This completes the installation of the first locking device 12a on the mounting frame 11. Figure 5C As shown.

[0074] The procedure for removing the first locking device 12a from the mounting frame 11 includes the following steps: 1. Press down on the distal end 123b of the operating member 123 to move the operating member 123 to the fourth position, and drive the locking hook 122 to rotate clockwise to the second position. At this time, the locking hook 122 disengages from the mounting hole 113 on the frame wall 112, as shown. Figure 5D As shown; 2. Lift the operating component 123 upwards, causing the first locking device 12a to move upwards above the mounting frame 11, thereby removing the first locking device 12a from the mounting frame 11. Figure 5E As shown.

[0075] Figure 6A yes Figure 1 Another partial schematic diagram of the filter device 10 shows the second locking device 12b and its adjacent components. Figure 6B Is it removal? Figure 6A A schematic diagram of some of the components. Figure 6C yes Figure 6B Enlarged view of point B in the image.

[0076] like Figure 1 and Figures 6A to 6CAs shown, the second locking device 12b is used to simultaneously fix and press two filters 13 located at the edge of the mounting frame 11 and adjacent to each other. The two filters 13 are located in adjacent first mounting area 114a and second mounting area 114b of a plurality of mounting areas 114, respectively.

[0077] Figure 7A and Figure 7B The specific structure of the second locking device 12b is shown. Wherein: Figure 7A yes Figure 6A A three-dimensional schematic diagram of the second locking device 12b as viewed from one perspective; Figure 7B yes Figure 6A A three-dimensional schematic diagram of the second locking device 12b from another perspective, in which the second half-shell 1212 of the lock case 121 has been removed.

[0078] like Figures 6A to 7B As shown, similar to the first locking device 12a, the second locking device 12b mainly includes a lock housing 121, a lock hook 122, an operating member 123, an elastic member 124, and a connecting shaft 125. The specific structures of the lock hook 122, operating member 123, elastic member 124, and connecting shaft 125 of the second locking device 12b are similar to those of the lock hook 122, operating member 123, elastic member 124, and connecting shaft 125 of the first locking device 12a, and will not be described in detail here.

[0079] Similar to the first locking device 12a, the locking hook 122 of the second locking device 12b is rotatably connected to the lock housing 121 and is configured to switch between a first position and a second position relative to the lock housing 121.

[0080] When the second locking device 12b is connected to the mounting frame 11 and the locking hook 122 is in the first position, the locking hook 122 engages with the mounting hole 113 in the frame wall 112 to lock the lock housing 121 onto the mounting frame 11, thereby holding the filter 13 located in the mounting area 114 between the lock housing 121 and the base 111. When the second locking device 12b is connected to the mounting frame 11 and the locking hook 122 is in the second position, the locking hook 122 disengages from the mounting hole 113 in the frame wall 112, thereby allowing the second locking device 12b to be removed from the mounting frame 11.

[0081] Specifically, the second locking device 12b includes two locking hooks 122 spaced apart in the transverse direction X and facing opposite directions, namely a first locking hook 122a and a second locking hook 122b. When the second locking device 12b is connected to the mounting frame 11 and the first locking hook 122a and the second locking hook 122b are in the first position, both the first locking hook 122a and the second locking hook 122b hook onto the mounting holes 113 that connect the first mounting area 114a and the second mounting area 114b, thereby holding the two filters 13 located in the first mounting area 114a and the second mounting area 114b respectively between the lock housing 121 and the base 111.

[0082] Similar to the first locking device 12a, the operating member 123 of the second locking device 12b is movably connected to the lock housing 121 and configured to switch between a third position and a fourth position relative to the lock housing 121. The specific manner in which the operating member 123 of the second locking device 12b is connected to the lock housing 121 is similar to that of the operating member 123 of the first locking device 12a, and will not be described again here.

[0083] The way in which the locking hook 122 of the second locking device 12b is operatively connected to the operating member 123 is similar to the way in which the locking hook 122 of the first locking device 12a is operatively connected to the operating member 123. The main difference is that the first locking hook 122a and the second locking hook 122b of the second locking device 12b are both connected to the operating member 123 through the same connecting shaft 125 and are located on the same side of the transverse X of the operating member 123.

[0084] The arrangement and operation of the elastic element 124 of the second locking device 12b are similar to those of the elastic element 124 of the first locking device 12a, and will not be described again here.

[0085] The lock housing 121 of the second locking device 12b is formed by a first half-shell 1211 and a second half-shell 1212 detachably connected by a plurality of plug-in structures 1213. The structure of the first half-shell 1211 of the second locking device 12b is similar to that of the first half-shell 1211 of the first locking device 12a, but the structure of the second half-shell 1212 of the second locking device 12b is different from that of the second half-shell 1212 of the first locking device 12a.

[0086] Specifically, since the second half-shell 1212 of the second locking device 12b does not need to abut against and press against the filter 13, the bottom surface of the second half-shell 1212 of the second locking device 12b is designed to be higher than the bottom surface 1210 of the lock shell of the first half-shell 1211, the lateral dimension of the second half-shell 1212 is designed to be smaller than the lateral dimension of the first half-shell 1211, and the second side wall 1212c of the second half-shell 1212 is not provided with a clearance groove 1216, thereby simplifying the structure of the second locking device 12b and reducing the size of the second locking device 12b.

[0087] The second locking device 12b includes multiple insertion structures 1213, including a first insertion structure 1213a and a second insertion structure 1213b. The specific structures of the first insertion structure 1213a and the second insertion structure 1213b of the second locking device 12b are similar to those of the first locking device 12a, and will not be described again here. The pivot portions 1223 of the first locking hook 122a and the second locking hook 122b are rotatably fitted onto the first insertion structure 1213a and the second insertion structure 1213b, respectively, and are limited in the transverse X direction by the corresponding shoulders and the end faces of the sleeves.

[0088] The operation method for installing the second locking device 12b onto the mounting frame 11 and removing it from the mounting frame 11 is similar to that of the first locking device 12a, and will not be described again here.

[0089] Figure 8A yes Figure 1 Another partial schematic diagram of the filtering device in the image shows the third locking device 12c and its adjacent components. Figure 8B Is it removal? Figure 8A A schematic diagram following some of the components. (See attached diagram.) Figure 1 , Figure 8A and Figure 8B As shown, the third locking device 12c is used to fix and press the filter 13 located at the corner of the mounting frame 11.

[0090] Figures 9A to 9C The specific structure of the third locking device 12c is shown. Wherein: Figure 9A yes Figure 8A A three-dimensional schematic diagram of the third locking device 12c as viewed from one perspective; Figure 9B yes Figure 9A A three-dimensional schematic diagram of the third locking device 12c from another perspective; Figure 9C yes Figure 9A A partially exploded diagram of the third locking device 12c.

[0091] like Figures 8A to 9C As shown, similar to the first locking device 12a, the third locking device 12c mainly includes a lock housing 121, a lock hook 122, an operating member 123, an elastic member 124, and a connecting shaft 125. The specific structures of the lock hook 122, operating member 123, elastic member 124, and connecting shaft 125 of the third locking device 12c are similar to those of the lock hook 122, operating member 123, elastic member 124, and connecting shaft 125 of the first locking device 12a, and will not be described in detail here.

[0092] Similar to the first locking device 12a, the locking hook 122 of the third locking device 12c is rotatably connected to the lock housing 121 and is configured to switch between a first position and a second position relative to the lock housing 121.

[0093] When the third locking device 12c is connected to the mounting frame 11 and the locking hook 122 is in the first position, the locking hook 122 engages with the mounting hole 113 in the frame wall 112 to lock the lock housing 121 onto the mounting frame 11, thereby holding the filter 13 located in the mounting area 114 between the lock housing 121 and the base 111. When the third locking device 12c is connected to the mounting frame 11 and the locking hook 122 is in the second position, the locking hook 122 disengages from the mounting hole 113 in the frame wall 112, thereby allowing the third locking device 12c to be removed from the mounting frame 11.

[0094] Specifically, the third locking device 12c includes two locking hooks 122, namely a first locking hook 122a and a second locking hook 122b. The first locking hook 122a and the second locking hook 122b are respectively connected to the operating member 123 via two mutually perpendicular connecting shafts 125, so that the first locking hook 122a and the second locking hook 122b are oriented perpendicularly to each other. When the third locking device 12c is connected to the mounting frame 11 and the first locking hook 122a and the second locking hook 122b are in the first position, the first locking hook 122a and the second locking hook 122b respectively hook onto two mounting holes 113 at a corner of the mounting frame 11, the two mounting holes 113 being located on two mutually perpendicular frame walls 112 defining the corner. Thus, the third locking device 12c can hold the filter 13 located at the corner between the lock housing 121 and the base 111.

[0095] Similar to the first locking device 12a, the operating member 123 of the third locking device 12c is movably connected to the lock housing 121 and configured to switch between a third position and a fourth position relative to the lock housing 121. The specific manner in which the operating member 123 of the third locking device 12c is connected to the lock housing 121 is similar to that of the operating member 123 of the first locking device 12a, and will not be described again here.

[0096] The way in which the locking hook 122 of the third locking device 12c is operatively connected to the operating member 123 is similar to the way in which the locking hook 122 of the first locking device 12a is operatively connected to the operating member 123. The main difference is that the first locking hook 122a and the second locking hook 122b are respectively connected to the operating member 123 via two mutually perpendicular connecting shafts 125.

[0097] The arrangement and operation of the elastic element 124 of the third locking device 12c are similar to those of the elastic element 124 of the first locking device 12a, and will not be described again here.

[0098] The lock housing 121 of the third locking device 12c is formed by a first half-shell 1211 and a second half-shell 1212 detachably connected by multiple plug-in structures. These plug-in structures are located at the joint of the first half-shell 1211 and the second half-shell 1212. Instead of plug-in structures, the inner cavity of the lock housing 121 contains two mutually perpendicular pivots 126. The two pivots 126 are respectively connected to the same height on two mutually perpendicular sidewalls of the first half-shell 1211 and extend along the transverse (X) and longitudinal (Y) directions, respectively. Each pivot 126 includes a pin portion 126a and a shoulder portion 126b. The pin portion 126a is located at the free end of the pivot 126, and the shoulder portion 126b protrudes radially outward relative to the pin portion 126a. A cap 127 is detachably connected to the pin portion 126a, and the cap 127 is spaced apart from the shoulder portion 126b.

[0099] The pivot portions 1223 of the first hook 122a and the second hook 122b are rotatably fitted onto the pin portions 126a of the two pivots 126, and are limited in the axial direction of the pivots 126 by the shoulder portion 126b and the cap 127.

[0100] The first half-shell 1211 includes a lock shell bottom surface 1210 located at its lower end in the height direction Z and perpendicular to the height direction Z. The lock shell bottom surface 1210 is used to abut against the frame of the filter 13 to hold the filter 13 between the lock shell 121 and the base 111 and to press the filter 13 against the sealing gasket 14 disposed between the filter 13 and the base 111 to prevent leakage.

[0101] The bottom surface of the second half-shell 1212 is higher than the bottom surface 1210 of the lock case of the first half-shell 1211. The lateral dimension of the second half-shell 1212 is smaller than the lateral dimension of the first half-shell 1211. Furthermore, the second side wall 1212c of the second half-shell 1212 does not have an clearance groove 1216, which simplifies the structure of the third locking device 12c and reduces its size.

[0102] The operation method for installing the third locking device 12c onto the mounting frame 11 and removing it from the mounting frame 11 is similar to that of the first locking device 12a, and will not be described again here.

[0103] Figure 10This is a partial cross-sectional view of a fourth locking device 12d according to another embodiment of this application, wherein the second half-shell 1212 of the lock housing 121 has been removed. The structure of the fourth locking device 12d is similar to that of the first locking device 12a, the main difference being that the elastic element 124 of the fourth locking device 12d is a torsion spring, which is connected between the lock housing 121 and the lock hook 122. For example, the two torsion arms (not shown) of the torsion spring abut against the limiting grooves (not shown) of the lock housing 121 and the lock hook 122, respectively. The torsion spring is always in a torsional state to provide an elastic force to return the lock hook 122 to the first position and / or to hold the lock hook 122 in the first position.

[0104] It is understood that the aforementioned first locking device 12a, second locking device 12b and third locking device 12c can all be modified to use a torsion spring as the elastic element 124.

[0105] Air conditioning and filter devices according to various exemplary embodiments of the present invention include locking devices capable of simultaneously securing and clamping multiple filters, thereby significantly reducing the number of locking devices and the number of installation and disassembly operations, thus reducing costs and improving production efficiency. The locking device has a simple structure, is easy to design and manufacture, and is simple to install and disassemble, allowing for quick filter replacement without tools, thereby improving operational efficiency and customer experience.

[0106] The filtration devices according to various exemplary embodiments of the present invention have high versatility and are applicable not only to air conditioning devices but also to other applications requiring air filtration.

[0107] Although this application has been described with reference to examples of the embodiments outlined above, various alternatives, modifications, variations, improvements, and / or substantially equivalents, whether known or currently or soon to be foreseen, will likely be apparent to those skilled in the art. Furthermore, the technical effects and / or technical problems described herein are exemplary and not limiting; therefore, the disclosures herein may be used to solve other technical problems and have other technical effects and / or can solve other technical problems. Thus, the examples of embodiments of this application as set forth above are intended to be illustrative and not limiting. Various changes can be made without departing from the spirit or scope of this application. Therefore, this application is intended to include all known or previously developed alternatives, modifications, variations, improvements, and / or substantially equivalents.

Claims

1. A filtration device (10), characterized in that include: The installation framework (11) includes: Base (111); and A frame wall (112) extends from the base (111) in a direction away from the base (111) and defines a mounting area (114) for the filter (13), the frame wall (112) having mounting holes (113); and Locking devices (12a, 12b, 12c), detachably connected to the mounting frame (11), and comprising: Lock case (121); A locking hook (122), rotatably connected to the lock housing (121), is configured to switch between a first position and a second position; and An operating element (123) is movably connected to the lock housing (121) and configured to switch between a third position and a fourth position; The locking hook (122) is operatively connected to the operating member (123) such that when the operating member (123) moves from the third position to the fourth position, the locking hook (122) rotates from the first position to the second position, and when the operating member (123) moves from the fourth position to the third position, the locking hook (122) rotates from the second position to the first position. When the locking device (12a, 12b, 12c) is connected to the mounting frame (11) and the locking hook (122) is in the first position, the locking hook (122) engages the mounting hole (113) in the frame wall (112) to lock the lock housing (121) onto the mounting frame (11), thereby enabling the filter (13) located in the mounting area (114) to be held between the lock housing (121) and the base (111); and When the locking device (12a, 12b, 12c) is connected to the mounting frame (11) and the locking hook (122) is in the second position, the locking hook (122) is disengaged from the mounting hole (113) of the frame wall (112).

2. The filtration device (10) according to claim 1, characterized in that: The locking device (12a, 12b, 12c) further includes an elastic element (124) connected between the lock housing (121) and the operating element (123) or between the lock housing (121) and the hook (122) to provide an elastic force to return the hook (122) to the first position and / or to hold the hook (122) in the first position.

3. The filtration device (10) according to claim 1, characterized in that: The operating element (123) moves along the height direction (Z) of the lock housing (121) between the third position and the fourth position.

4. The filtration device (10) according to claim 3, characterized in that: The operating element (123) includes a proximal end (123a) and a distal end (123b) opposite each other in the height direction (Z), the proximal end (123a) being located between the locking hook (122) and the distal end (123b), and the distal end (123b) being located outside the lock housing (121), wherein the distal end (123b) moves toward the lock housing (121) when the operating element (123) moves from the third position to the fourth position.

5. The filtration device (10) according to claim 3, characterized in that: The locking device (12a, 12b, 12c) further includes a connecting shaft (125) that extends perpendicularly to the height direction (Z) and is fixedly connected to one of the operating member (123) and the locking hook (122). The other of the operating member (123) and the locking hook (122) includes a waist-shaped hole (1224) with a cross-section parallel to the height direction (Z). The connecting shaft (125) is inserted into the waist-shaped hole (1224) and configured to move between opposite ends along the length of the waist-shaped hole (1224), thereby operably connecting the locking hook (122) and the operating member (123).

6. The filtration device (10) according to claim 5, characterized in that: The lock hook (122) includes the waist-shaped hole (1224) and a pivot portion (1223) spaced apart from the waist-shaped hole (1224), and the lock hook (122) is rotatably connected to the lock housing (121) via the pivot portion (1223).

7. The filtration device (10) according to claim 6, characterized in that: The locking device (12a, 12b, 12c) includes a plurality of said locking hooks (122), the plurality of locking hooks (122) including a first locking hook (122a) and a second locking hook (122b), the first locking hook (122a) and the second locking hook (122b) being connected to the operating member (123) via the same said connecting shaft (125) or via two said connecting shafts (125) respectively.

8. The filtration device (10) according to claim 7, characterized in that: The first locking hook (122a) and the second locking hook (122b) are located on the same side of the transverse (X) direction of the operating member (123) or on opposite sides of the transverse (X) direction of the operating member (123), which is perpendicular to the height direction (Z).

9. The filtration device (10) according to claim 7, characterized in that: The first locking hook (122a) and the second locking hook (122b) are oriented in opposite directions.

10. The filtration device (10) according to claim 7, characterized in that: The first locking hook (122a) and the second locking hook (122b) are respectively connected to the operating member (123) via two mutually perpendicular connecting shafts (125).

11. The filtration device (10) according to any one of claims 7-9, characterized in that: The mounting frame (11) has a plurality of mounting areas (114) formed therein, each for mounting a plurality of filters (13), wherein the plurality of mounting areas (114) includes an adjacent first mounting area (114a) and a second mounting area (114b); and When the locking device (12b) is connected to the mounting frame (11) and the locking hook (122) is in the first position, the first locking hook (122a) and the second locking hook (122b) hook the mounting hole (113) that connects the first mounting area (114a) and the second mounting area (114b), thereby enabling the two filters (13) located in the first mounting area (114a) and the second mounting area (114b) to be held between the lock housing (121) and the base (111).

12. The filtration device (10) according to any one of claims 7-9, characterized in that: The mounting frame (11) has a plurality of mounting areas (114) formed therein, each for mounting a plurality of filters (13), wherein the plurality of mounting areas (114) include a first mounting area (114a), a second mounting area (114b), a third mounting area (114c), and a fourth mounting area (114d) that are adjacent to each other; and When the locking device (12a) is connected to the mounting frame (11) and the locking hook (122) is in the first position, the first locking hook (122a) hooks the mounting hole (113) connecting the first mounting area (114a) and the second mounting area (114b), and the second locking hook (122b) hooks the mounting hole (113) connecting the third mounting area (114c) and the fourth mounting area (114d), thereby enabling the four filters (13) located in the first mounting area (114a), the second mounting area (114b), the third mounting area (114c), and the fourth mounting area (114d) to be held between the lock housing (121) and the base (111).

13. The filtration device (10) according to claim 6, characterized in that: The lock housing (121) includes a first half-shell (1211) and a second half-shell (1212), which are detachably connected by a plurality of plug-in structures (1213); and The pivot portion (1223) of one or more of the locking hooks (122) is rotatably fitted onto one or more of the plurality of plug structures (1213).

14. The filtration device (10) according to claim 13, characterized in that: The plurality of plug-in structures (1213) includes a first plug-in structure (1213a) and a second plug-in structure (1213b). The first half-shell (1211) includes a first shaft (1211a) and a first sleeve (1211b). The second half-shell (1212) includes a second shaft (1212a) and a second sleeve (1212b). The first shaft (1211a) is at least partially inserted into the second sleeve (1212b) to form the first plug-in structure (1213a), and the second shaft (1212a) is at least partially inserted into the first sleeve (1211b) to form the second plug-in structure (1213b). The one or more locking hooks (122) are rotatably mounted on the first shaft (1211a) and / or the second shaft (1212a).

15. The filtration device (10) according to claim 13 or 14, characterized in that: The first half-shell (1211) has the same structure as the second half-shell (1212).

16. The filtration device (10) according to any one of claims 1-10, characterized in that: The lock housing (121) includes a lock housing bottom surface (1210) located at one end in its height direction (Z) and perpendicular to the height direction (Z), the lock housing bottom surface (1210) being used to abut against the filter (13). The lock hook (122) includes a hook tip (1222) located within the lock housing (121) and a connecting portion (1221) connecting the hook tip (1222) and the lock housing (121). The hook tip (1222) includes a connecting end (1222a) connected to the connecting portion (1221) and a free end (1222b) away from the connecting portion (1221), as well as an upper edge (1222c) and a lower edge (1222d) opposite each other in the height direction (Z). When the locking device (12a, 12b, 12c) is connected to the mounting frame (11) and the locking hook (122) is in the first position, the hook tip (1222) is inserted into the mounting hole (113), and the connecting end (1222a) and the free end (1222b) are located on both sides of the mounting hole (113).

17. The filtration device (10) according to claim 16, characterized in that: in, When the lock hook (122) is in the first position, the lower edge (1222d) of the hook tip (1222) extends obliquely from the connecting end (1222a) to the free end (1222b) away from the bottom surface (1210) of the lock case, so that during the process of installing the lock case (121) to the mounting frame (11), the lock hook (122) can rotate to the second position under the thrust of the lower edge (1222d) exerted by the frame wall (112).

18. The filtration device (10) according to claim 16, characterized in that: When the lock hook (122) is in the first position, the upper edge (1222c) of the hook tip (1222) extends obliquely from the connecting end (1222a) to the free end (1222b) away from the bottom surface (1210) of the lock case.

19. An air conditioning unit (1), comprising a filter device (10) as claimed in any one of claims 1-18.

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