Air filtering device and air conditioner

Abstract

The utility model provides an air filtering device and an air conditioner, the air filtering device comprises a shell, a first filter screen, a second filter screen, a first support rod and a second support rod, the ventilation wall of the shell is provided with a ventilation opening, the hinge end of the first support rod is rotatably hinged with the ventilation wall; the first filter screen is detachably and slidably pulled out or inserted from the first adaptive end of the first supporting rod, the second supporting rod can be slidably pulled out or inserted from the first adaptive end to be supported on the first supporting rod, and a guide column is arranged at the guide end of the second supporting rod in a protruding mode. The second filter screen is detachably and slidably pulled out or inserted from the second adaptive end of the second supporting rod, when the second supporting rod is supported on the first supporting rod in a pulled-out mode, a guide rod is arranged on the ventilation wall, the guide groove comprises an arc-shaped groove and a straight extending groove which are communicated in a smooth transition mode, and the guide column is slidably located in the guide groove. The air filtering device can prevent the filter screen from being damaged in the disassembly and assembly process, so that the filter screen is convenient and rapid to disassemble and assemble.

Description

Technical Field

[0001] The utility model relates to the technical field of air conditioners, in particular to an air filter device and an air conditioner with the air filter device. Background Art

[0002] In order to prevent dust from entering the air conditioner and accumulating inside, thereby affecting the operation of the internal parts of the air conditioner, and to prevent the air blown out by the air conditioner from being mixed with too much dust and affecting human health, the air conditioner will be equipped with a filter at its air inlet and / or outlet to filter the incoming and outgoing air.

[0003] With long-term use, a large amount of dust will accumulate on the filter screen set at the air inlet and / or the air outlet. In order to ensure the dust filtering effect and efficiency of the filter screen, the filter screen needs to be cleaned. In order to facilitate the cleaning of the filter screen, there is an existing air conditioner that matches the filter screen with its casing through a detachable hinged shaft buckle. When removing the filter screen, the user pries open the clamping end of the filter screen, controls the filter screen to rotate around its hinged shaft away from the casing to any angle, and then forcibly removes the hinged shaft of the filter screen from the buckle on the casing, and at this time, the buckle is elastically deformed, so that the filter screen is removed from the casing for cleaning; when assembling the filter screen, the user forcibly presses the hinged shaft of the filter screen into the buckle on the casing, and at this time, the buckle is elastically deformed, and then controls the filter screen to rotate around its hinged shaft to cover the casing, and presses the clamping end of the filter screen to be clamped on the hook of the casing, so that the filter screen is installed on the casing for filtering.

[0004] However, during the disassembly and assembly process of the filter on the existing air conditioner, the relevant parts need to form elastic deformation conditions to complete the process, such as the elastic deformation of the buckle. The elastic deformation parts are easily damaged, resulting in the failure of the disassembly and assembly function of the filter. In addition, when disassembling the filter by the existing hinged rotation method, the filter rotates around its hinge axis away from the casing to any angle. The user cannot control the filter to be disassembled at a certain anti-mistake angle, resulting in difficulty in disassembly and assembly of the filter. In addition, the filter that rotates and shakes at any angle is easily damaged. Summary of the invention

[0005] In order to achieve the first purpose of the utility model, the utility model provides an air filtering device which can prevent the filter from being damaged during the disassembly and assembly process and the filter can be disassembled and assembled conveniently and quickly, thereby improving the disassembly and assembly efficiency of the filter while ensuring the quality of the filter.

[0006] In order to achieve the second purpose of the utility model, the utility model provides an air conditioner with the above-mentioned air filtering device.

[0007] To achieve the first object of the present utility model, the present utility model provides an air filtering device, which comprises a housing, a first filter screen, a second filter screen, a first support rod and a second support rod. A ventilation opening is formed through the ventilation wall of the housing. The hinged end of the first support rod is rotatably hinged to the ventilation wall and is located at one end of the ventilation opening in the length direction of the ventilation opening. The first filter screen can be detachably slid out or inserted from the first matching end of the first support rod. The second support rod can be slid out or inserted from the first matching end and supported on the first support rod. A guide post protrudes from the guiding end of the second support rod. The second filter screen can be detachably slid out or inserted from the second matching end of the second support rod. When the second support rod is slid out and supported on the first support rod, the first filter screen and the second filter screen are unfolded to cover the ventilation opening. A guide rod is arranged on the ventilation wall, and a guide groove is formed in the guide rod. The guide groove comprises an arc groove and a straight extension groove which are smoothly connected. The arc groove extends in an arc shape around the hinged end, and the straight extension groove extends in the length direction of the ventilation opening. The guide post is slidably located in the guide groove.

[0008] As can be seen from the above solution, when disassembling the filter screen on the air filtering device of the present utility model, first control the second support rod to drive the second filter screen to be slidably inserted from the first matching end of the first support rod and supported on the first support rod. At the same time, the guide post on the second support rod slides in the straight extension groove of the guide groove to the intersection of the straight extension groove and the arc groove. Then, control the first support rod to drive the first filter screen, the second filter screen and the second support rod to rotate away from the ventilation wall of the housing. At the same time, the guide post on the second support rod slides into the arc groove of the guide groove. When the guide post on the second support rod slides to the stop end of the arc groove away from the ventilation wall, the stop end of the arc groove stops and limits the guide post on the second support rod, so that the first support rod, the first filter screen, the second filter screen and the second support rod as a whole stop rotating, so that the first support rod, the first filter screen, the second filter screen and the second support rod are opened away from the ventilation wall of the housing at a limited and stable angle. Then, slide out the first filter screen from the first matching end of the first support rod and slide out the second filter screen from the second matching end of the second support rod, so as to stably and reliably disassemble the first filter screen and the second filter screen on the air filtering device of the present utility model.

[0009] When installing the filter screen on the air filtering device of the present utility model, first open the first support rod and the second support rod away from the ventilation wall of the housing at a restricted stable angle. Then, slide the first filter screen into the first support rod from the first matching end of the first support rod, and slide the second filter screen into the second support rod from the second matching end of the second support rod. Subsequently, control the first support rod to drive the first filter screen, the second filter screen and the second support rod to rotate towards the ventilation wall of the housing. At the same time, the guide post on the second support rod slides from the arc-shaped groove to the straight extension groove. When the first filter screen on the first support rod covers the ventilation opening, control the second support rod to drive the second filter screen to slide out from the first matching end of the first support rod and support on the first support rod, so that the first filter screen and the second filter screen are unfolded to cover the ventilation opening, so as to filter the dust in the air passing through the ventilation opening.

[0010] Therefore, the stop end of the arc-shaped groove of the air filtering device of the present utility model stops and limits the guide post on the second support rod, so that the first support rod and the second support rod are opened away from the ventilation wall of the housing at a restricted stable angle, avoiding the shaking phenomenon of the first support rod and the second support rod. Thus, the user can conveniently, stably and smoothly disassemble and assemble the first filter screen and the second filter screen, and can avoid damage to the filter screen during the disassembly and assembly process, making the disassembly and assembly of the filter screen convenient and fast. Therefore, while ensuring the quality of the filter screen, the disassembly and assembly efficiency of the filter screen is improved.

[0011] A further solution is that the central angle between the stop end of the arc-shaped groove away from the ventilation wall and the ventilation wall is greater than 90° and less than 100°.

[0012] A further solution is that when the second support rod is inserted and supported on the first support rod, the first filter screen and the second filter screen are arranged side by side in the length direction perpendicular to the ventilation opening.

[0013] A further solution is that the first support rod protrudes with a first slide rail, and the second support rod is provided with a first slide groove, and the first slide groove can be slidably and adaptively supported on the first slide rail; or, the first support rod is provided with a second slide groove, and the second support rod protrudes with a second slide rail, and the second slide rail can be slidably and adaptively supported in the second slide groove.

[0014] A further solution is that a first concave strip is recessed on the side surface of the first slide rail, a first convex strip is protruded on the side surface of the first chute, and the first convex strip is slidably located in the first concave strip; and / or, a second convex strip is protruded on the side surface of the first slide rail, a second concave strip is recessed on the side surface of the first chute, and the second convex strip is slidably located in the second concave strip; or, a third concave strip is recessed on the side surface of the second chute, a third convex strip is protruded on the side surface of the second slide rail, and the third convex strip is slidably located in the third concave strip; and / or, a fourth convex strip is protruded on the side surface of the second chute, a fourth concave strip is recessed on the side surface of the second slide rail, and the fourth convex strip is slidably located in the fourth concave strip.

[0015] A further solution is that a first T-shaped strip is protruded on the first frame of the first filter screen, a first T-shaped groove is provided on the first support rod, the first T-shaped groove penetrates through the first fitting end, and the first T-shaped strip can be detachably slid out or inserted into the first T-shaped groove; or, a second T-shaped groove is provided on the first frame of the first filter screen, the second T-shaped groove penetrates through at least one end of the first frame, a second T-shaped strip is protruded on the first support rod, and the second T-shaped strip can be detachably slid out or inserted into the second T-shaped groove.

[0016] A further solution is that a third T-shaped strip is protruded on the second frame of the second filter screen, a third T-shaped groove is provided on the second support rod, the third T-shaped groove penetrates through the second fitting end, and the third T-shaped strip can be detachably slid out or inserted into the third T-shaped groove; or, a fourth T-shaped groove is provided on the second frame of the second filter screen, the fourth T-shaped groove penetrates through at least one end of the second frame, a fourth T-shaped strip is protruded on the second support rod, and the fourth T-shaped strip can be detachably slid out or inserted into the fourth T-shaped groove.

[0017] A further solution is that a first hook pulling groove is recessed in the first frame of the first filter screen, and when the first filter screen is inserted and installed on the first support rod, the first hook pulling groove is arranged close to the first fitting end; and / or, a second hook pulling groove is recessed in the second frame of the second filter screen, and when the second filter screen is inserted and installed on the second support rod, the second hook pulling groove is arranged close to the second fitting end.

[0018] A further solution is that a limiting groove is provided on the ventilation wall, the limiting groove is located at one end of the guide rod away from the arc-shaped groove in the length direction of the ventilation opening, and the limiting groove extends in the length direction of the ventilation opening, and the second support rod can be slid out or inserted from the limiting groove.

[0019] In order to achieve the second object of the present invention, the present invention provides an air conditioner, including an air filtering device, and the air filtering device is the above-mentioned air filtering device. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1It is the first - perspective structure diagram of an embodiment of the air - filtering device of the present utility model.

[0021] Figure 2 It is the second - perspective structure diagram of an embodiment of the air - filtering device of the present utility model.

[0022] Figure 3 It is the partial - structure decomposition diagram of an embodiment of the air - filtering device of the present utility model.

[0023] Figure 4 It is the partial - structure diagram of the housing in an embodiment of the air - filtering device of the present utility model.

[0024] Figure 5 It is the structure diagram of the cooperation of the first filter net, the second filter net, the first support rod, the second support rod and the guide rod in an embodiment of the air - filtering device of the present utility model.

[0025] Figure 6 It is the front view of the cooperation of the first filter net, the second filter net, the first support rod, the second support rod and the guide rod in an embodiment of the air - filtering device of the present utility model.

[0026] Figure 7 It is the sectional view of the cooperation of the first filter net, the second filter net, the first support rod, the second support rod and the guide rod in an embodiment of the air - filtering device of the present utility model.

[0027] Figure 8 It is Figure 7 The enlarged view at A.

[0028] Figure 9 It is the structure diagram of the guide rod in an embodiment of the air - filtering device of the present utility model.

[0029] Figure 10 It is the side view of the guide rod in an embodiment of the air - filtering device of the present utility model.

[0030] Figure 11 It is the structure diagram of the first support rod in an embodiment of the air - filtering device of the present utility model.

[0031] Figure 12 It is Figure 11 The enlarged view at B.

[0032] Figure 13 It is the side view of the first support rod in an embodiment of the air - filtering device of the present utility model.

[0033] Figure 14 It is the structure diagram of the second support rod in an embodiment of the air - filtering device of the present utility model.

[0034] Figure 15 It is Figure 14 The enlarged view at C.

[0035] Figure 16 It is a side view of the second support rod in the embodiment of the air filtration device of the present utility model.

[0036] Figure 17 It is a structural diagram of the first filter screen / second filter screen in the embodiment of the air filtration device of the present utility model.

[0037] Figure 18 It is Figure 17 An enlarged view at D.

[0038] Figure 19 It is Figure 17 An enlarged view at E.

[0039] Figure 20 It is a structural diagram of the first operating state of the air filtration device in the embodiment of the present utility model.

[0040] Figure 21 It is a structural diagram of the second operating state of the air filtration device in the embodiment of the present utility model.

[0041] Figure 22 It is a side view of the second operating state of the air filtration device in the embodiment of the present utility model.

[0042] The present utility model will be further described below in conjunction with the accompanying drawings and embodiments. Detailed implementation manners

[0043] Refer to Figures 1 to 19, this embodiment discloses an air filtering device 10, which includes a housing 11, a first filter screen 12, a second filter screen 13, a first support rod 14 and a second support rod 15. A ventilation opening 111 is formed through a ventilation wall 110 of the housing 11. A hinged end 141 of the first support rod 14 is rotatably hinged to the ventilation wall 110 and is located at one side end of the ventilation opening 111 in the length direction of the ventilation opening 111. The first filter screen 12 can be detachably slid out or inserted from a first fitting end 142 of the first support rod 14. At the same time, in this embodiment, the second support rod 15 can be slid out or inserted from the first fitting end 142 of the first support rod 14 to support on the first support rod 14. A guide post 151 protrudes from a guiding end of the second support rod 15. The second filter screen 13 can be detachably slid out or inserted from a second fitting end of the second support rod 15. And when the second support rod 15 is slid out to support on the first support rod 14, the first filter screen 12 and the second filter screen 13 are unfolded to cover the ventilation opening 111. Moreover, in this embodiment, a guide rod 16 is arranged on the ventilation wall 110. The guide rod 16 is provided with a guide groove 160. The guide groove 160 includes an arc groove 161 and a straight extension groove 162 which are smoothly connected. The arc groove 161 extends in a circular arc around the hinged end 141 of the first support rod 14, and the straight extension groove 162 extends in the length direction of the ventilation opening 111. The guide post 151 is slidably located in the guide groove 160.

[0044] When disassembling the filter screen on the air filtering device 10 of this embodiment, first control the second support rod 15 to drive the second filter screen 13 to slide and insert from the first fitting end 142 of the first support rod 14 to support on the first support rod 14. At the same time, the guide post 151 on the second support rod 15 slides in the straight extension groove 162 of the guide groove 160 to the intersection of the straight extension groove 162 and the arc groove 161, as Figure 20 shown. Then, control the first support rod 14 to drive the first filter screen 12, the second filter screen 13 and the second support rod 15 to rotate away from the ventilation wall 110 of the housing 11. At the same time, the guide post 151 on the second support rod 15 slides into the arc groove 161 of the guide groove 160. When the guide post 151 on the second support rod 15 slides to a stop end 1611 of the arc groove 161 away from the ventilation wall 110, the stop end 1611 of the arc groove 161 stops and limits the guide post 151 on the second support rod 15, then the first support rod 14, the first filter screen 12, the second filter screen 13 and the second support rod 15 as a whole stop rotating, so that the first support rod 14, the first filter screen 12, the second filter screen 13 and the second support rod 15 are opened away from the ventilation wall 110 of the housing 11 at a limited stable angle, as Figure 21 and Figure 22As shown. Then, the first filter screen 12 is slid out from the first adaptation end 142 of the first support rod 14, and the second filter screen 13 is slid out from the second adaptation end of the second support rod 15, so that the first filter screen 12 and the second filter screen 13 on the air filtering device 10 of this embodiment are disassembled stably and reliably.

[0045] When installing the filter screen on the air filtering device 10 of this embodiment, first open the first support rod 14 and the second support rod 15 away from the ventilation wall 110 of the housing 11 at a restricted and stable angle. Then, slide the first filter screen 12 into the first support rod 14 from the first adaptation end 142 of the first support rod 14, and slide the second filter screen 13 into the second support rod 15 from the second adaptation end of the second support rod 15. Subsequently, control the first support rod 14 to drive the first filter screen 12, the second filter screen 13 and the second support rod 15 to rotate close to the ventilation wall 110 of the housing 11. At the same time, the guide post 151 on the second support rod 15 slides from the arc-shaped groove 161 to the straight extension groove 162. When the first filter screen 12 on the first support rod 14 covers the ventilation opening 111, control the second support rod 15 to drive the second filter screen 13 to slide out from the first adaptation end 142 of the first support rod 14 and support on the first support rod 14, so that the first filter screen 12 and the second filter screen 13 are unfolded to cover the ventilation opening 111 to filter dust from the air passing through the ventilation opening 111.

[0046] Therefore, the stop end 1611 of the arc-shaped groove 161 of the air filtering device 10 of this embodiment stops and limits the guide post 151 on the second support rod 15, so that the first support rod 14 and the second support rod 15 are opened away from the ventilation wall 110 of the housing 11 at a restricted and stable angle, avoiding the shaking phenomenon of the first support rod 14 and the second support rod 15. Thus, the user can conveniently, stably and smoothly disassemble and assemble the first filter screen 12 and the second filter screen 13, and can avoid damage to the filter screen during the disassembly and assembly process, making the disassembly and assembly of the filter screen convenient and fast. Therefore, while ensuring the quality of the filter screen, the disassembly and assembly efficiency of the filter screen is improved.

[0047] Specifically, the central angle θ between the stop end 1611 of the arc-shaped groove 161 away from the ventilation wall 110 and the ventilation wall 110 is greater than 90° and less than 100°. On the one hand, it ensures that the guide post 151 on the second support rod 15 can be stably restricted at the stop end 1611 of the arc-shaped groove 161, preventing the guide post 151 from sliding towards the ventilation wall 110 of the housing 11 under the gravity of the second support rod 15, the first support rod 14, the first filter screen 12, and the second filter screen 13, which may cause the second support rod 15, the first support rod 14, the first filter screen 12, and the second filter screen 13 to rotate towards the ventilation wall 110 of the housing 11 and unable to stably support the first support rod 14, the first filter screen 12, the second filter screen 13, and the second support rod 15 to open at a restricted stable angle away from the ventilation wall 110 of the housing 11. On the other hand, when the first support rod 14 and the second support rod 15 are opened at a restricted stable angle away from the ventilation wall 110 of the housing 11, the first support rod 14 and the second support rod 15 are almost perpendicular to the ventilation wall 110 of the housing 11, so as to improve the convenience, speed, smoothness, and stability of the disassembly and assembly of the first filter screen 12 and the second filter screen 13.

[0048] Further, when the second support rod 15 of this embodiment is inserted and supported on the first support rod 14, the first filter screen 12 and the second filter screen 13 are arranged side by side in the length direction perpendicular to the ventilation opening 111, thereby reducing the occupied space during the disassembly and assembly operations of the first filter screen 12 and the second filter screen 13.

[0049] Among them, the first support rod 14 of this embodiment protrudes with a first sliding rail 143, and the second support rod 15 is provided with a first sliding groove 152, and the first sliding groove 152 can be slidably and adaptively supported on the first sliding rail 143; or, the first support rod 14 is provided with a second sliding groove, and the second support rod 15 protrudes with a second sliding rail, and the second sliding rail can be slidably and adaptively supported in the second sliding groove.

[0050] In order to improve the stability and reliability of the sliding fit between the first support rod 14 and the second support rod 15, the side surface of the first sliding rail 143 of this embodiment is recessed with a first concave strip 144, and the side surface of the first sliding groove 152 protrudes with a first convex strip 153, and the first convex strip 153 can be slidably located in the first concave strip 144; and / or, the side surface of the first sliding rail 143 protrudes with a second convex strip, the side surface of the first sliding groove 152 is recessed with a second concave strip, and the second convex strip can be slidably located in the second concave strip; or, the side surface of the second sliding groove is recessed with a third concave strip, the side surface of the second sliding rail protrudes with a third convex strip, and the third convex strip can be slidably located in the third concave strip; and / or, the side surface of the second sliding groove protrudes with a fourth convex strip, the side surface of the second sliding rail is recessed with a fourth concave strip, and the fourth convex strip can be slidably located in the fourth concave strip.

[0051] Moreover, a first T-shaped strip 121 protrudes from the first frame of the first filter screen 12 in this embodiment. The first support rod 14 is provided with a first T-shaped groove 145, and the first T-shaped groove 145 penetrates through the first mating end 142 of the first support rod 14. The first T-shaped strip 121 can be detachably slid out or inserted into the first T-shaped groove 145; alternatively, the first frame of the first filter screen 12 is provided with a second T-shaped groove, and the second T-shaped groove penetrates through at least one end of the first frame of the first filter screen 12. The first support rod 14 protrudes with a second T-shaped strip, and the second T-shaped strip can be detachably slid out or inserted into the second T-shaped groove.

[0052] Furthermore, a third T-shaped strip 131 protrudes from the second frame of the second filter screen 13 in this embodiment. The second support rod 15 is provided with a third T-shaped groove 154, and the third T-shaped groove 154 penetrates through the second mating end of the second support rod 15. The third T-shaped strip 131 can be detachably slid out or inserted into the third T-shaped groove 154; alternatively, the second frame of the second filter screen 13 is provided with a fourth T-shaped groove, and the fourth T-shaped groove penetrates through at least one end of the second frame of the second filter screen 13. The second support rod 15 protrudes with a fourth T-shaped strip, and the fourth T-shaped strip can be detachably slid out or inserted into the fourth T-shaped groove.

[0053] In order to further improve the convenience of disassembling and assembling the filter screen, a first hook slot 122 is recessed in the first frame of the first filter screen 12 in this embodiment. When the first filter screen 12 is inserted and installed on the first support rod 14, the first hook slot 122 is arranged close to the first mating end 142 of the first support rod 14. Moreover, a second hook slot 132 is recessed in the second frame of the second filter screen 13 in this embodiment. When the second filter screen 13 is inserted and installed on the second support rod 15, the second hook slot 132 is arranged close to the second mating end of the second support rod 15. When disassembling and assembling the filter screen, the user's hand can be buckled in the hook slot of the filter screen to slide the filter screen out or insert it into the support rod, which is convenient and fast to operate.

[0054] In order to ensure the reliability and stability of the sliding of the second support rod 15, and to improve the accurate covering of the second filter screen 13 on the ventilation opening 111 when the second filter screen 13 on the second support rod 15 is unfolded, a limiting slot 112 is provided on the ventilation wall 110 in this embodiment. The limiting slot 112 is located at the end of the guide rod 16 away from the arc-shaped slot 161 in the length direction of the ventilation opening 111, and the limiting slot 112 extends in the length direction of the ventilation opening 111. The second support rod 15 can be slid out or inserted from the limiting slot 112.

[0055] The above embodiments are only preferred examples of the present invention, and are not intended to limit the scope of implementation of the present invention. Therefore, any equivalent changes or modifications made according to the structure, features, and principles of the patent application scope of the present invention should be included in the patent application scope of the present invention.

Claims

1. An air filter device, comprising a housing, characterized in that: It also includes a first filter screen, a second filter screen, a first support rod and a second support rod, the ventilation wall of the shell is penetrated with a ventilation hole, the hinged end of the first support rod is rotatably hinged with the ventilation wall and is located at one side of the ventilation hole in the length direction of the ventilation hole, and the first filter screen can be detachably slid out or inserted from the first adapter end of the first support rod; The second support rod can be slidably withdrawn from or inserted into the first adapter end and supported on the first support rod, a guide column is protruding from the guide end of the second support rod, the second filter net can be detachably withdrawn from or inserted into the second adapter end of the second support rod, and when the second support rod is withdrawn and supported on the first support rod, the first filter net and the second filter net are unfolded and cover the vent; A guide rod is arranged on the ventilation wall, and a guide groove is opened on the guide rod. The guide groove includes an arc groove and a straight groove which are connected with each other through a smooth transition. The arc groove extends in a circular arc shape around the hinge end, and the straight groove extends in the length direction of the ventilation port. The guide column is slidably located in the guide groove.

2. The air filter device according to claim 1, characterized in that: A central angle between a stop end of the arc-shaped groove away from the ventilation wall and the ventilation wall is greater than 90° and less than 100°.

3. The air filter device according to claim 1, characterized in that: When the second support rod is insertedly supported on the first support rod, the first filter net and the second filter net are arranged side by side in a length direction perpendicular to the vent.

4. The air filter device according to claim 1, characterized in that: The first support rod is protrudingly provided with a first slide rail, and the second support rod is provided with a first slide groove, and the first slide groove can be slidably adapted to be supported on the first slide rail; Alternatively, the first support rod is provided with a second slide groove, the second support rod is protrudingly provided with a second slide rail, and the second slide rail can be slidably adapted to be supported in the second slide groove.

5. The air filter device according to claim 4, characterized in that: The first slide rail has a first concave strip formed inwardly on its side surface, and the first slide slot has a first convex strip formed inwardly on its side surface, and the first convex strip is slidably located in the first concave strip; and / or the first slide rail has a second convex strip formed inwardly on its side surface, and the first slide slot has a second concave strip formed inwardly on its side surface, and the second convex strip is slidably located in the second concave strip; Alternatively, a third groove is provided inwardly on the side surface of the second slide groove, a third convex strip is provided protrudingly on the side surface of the second slide rail, and the third convex strip is slidably located in the third groove; and / or a fourth convex strip is provided protrudingly on the side surface of the second slide groove, a fourth groove is provided inwardly on the side surface of the second slide rail, and the fourth convex strip is slidably located in the fourth groove.

6. The air filter device according to claim 1, characterized in that: The first frame of the first filter screen is protrudingly provided with a first T-shaped bar, the first support rod is provided with a first T-shaped slot, the first T-shaped slot is arranged through the first adapter end, and the first T-shaped bar can be detachably slidably pulled out or inserted into the first T-shaped slot; Alternatively, the first frame of the first filter screen is provided with a second T-slot, the second T-slot passes through at least one end of the first frame, the first support rod is protruding with a second T-bar, and the second T-bar can be detachably slidably pulled out or inserted into the second T-slot.

7. The air filter device according to claim 1, characterized in that: The second frame of the second filter screen is protrudingly provided with a third T-shaped bar, the second support rod is provided with a third T-shaped slot, the third T-shaped slot is arranged through the second adapter end, and the third T-shaped bar can be detachably slidably pulled out or inserted into the third T-shaped slot; Alternatively, the second frame of the second filter screen is provided with a fourth T-slot, the fourth T-slot passes through at least one end of the second frame, the second support rod is protruding with a fourth T-bar, and the fourth T-bar can be detachably slidably pulled out or inserted into the fourth T-slot.

8. The air filter device according to claim 1, characterized in that: A first hook groove is recessed in the first frame of the first filter screen, and when the first filter screen is inserted and installed on the first support rod, the first hook groove is arranged close to the first adapter end; And / or, a second hook groove is recessed in the second frame of the second filter screen, and when the second filter screen is inserted and installed on the second support rod, the second hook groove is arranged close to the second adapter end.

9. The air filter device according to any one of claims 1 to 8, characterized in that: A limiting groove is provided on the ventilation wall, and the limiting groove is located at the end of the guide rod away from the arc groove in the length direction of the ventilation port, and the limiting groove extends in the length direction of the ventilation port, and the second support rod can be slid out or inserted into the limiting groove.

10. An air conditioner, comprising an air filter device, characterized in that: The air filter device is the air filter device according to any one of claims 1 to 9.

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