Fresh air system of air conditioner

Abstract

The invention provides an air conditioner fresh air system and belongs to the technical field of fresh air systems. Comprising an air inlet pipe, an exhaust pipe and a filter plate, the diameter of the filter plate is larger than that of the air inlet pipe and that of the exhaust pipe, a guide frame is communicated between the air inlet pipe and the exhaust pipe, and the upper end and the lower end of the guide frame are both communicated with material fixing frames. A vertical rod can be turned over to be vertical, then the vertical rod is moved downwards, an ejection block can eject a forefront filter plate downwards until the forefront filter plate is ejected into an air inlet pipe, so that air entering the air inlet pipe is filtered, and at the moment, the filter plate is supported through two push plates to be prevented from falling off; when the filter plate in the air inlet pipe needs to be cleaned after being used for a period of time, the filter plate at the foremost end in the upper storage barrel is downwards extruded through the vertical rod, then the filter plate in the air inlet pipe is downwards jacked into the air exhaust pipe, a new filter plate is arranged in the air inlet pipe again, indoor air is exhausted through the air exhaust pipe, and the indoor air is purified. At the moment, dust is blown to the filter plate in the exhaust pipe.

Description

Technical Field

[0001] The present invention relates to the technical field of fresh air systems, and in particular to an air-conditioning fresh air system. Background Art

[0002] The fresh air system of air conditioner is one of the three major air circulation systems of air conditioner, namely indoor air circulation system, outdoor air circulation system and fresh air system. The main function of fresh air system is to realize the circulation and ventilation between room air and outdoor air, and also to purify the air. The turbid air in the room is discharged to the outside through the fresh air system pipe to form the pressure difference between indoor and outdoor air, complete the air exchange between indoor and outdoor, and refresh the air.

[0003] Patent number CN117760025B discloses an energy-saving device for a central air-conditioning fresh air system, which belongs to the technical field of fresh air systems, and includes an air intake channel and an exhaust channel, and also includes a filtering mechanism and a self-replacing mechanism arranged inside the air intake channel; fans are arranged inside the air intake channel and the exhaust channel, and an air intake port is provided on the side of the air intake channel facing the room, an air inlet is provided on the side of the air intake channel facing the outside, an air suction port is provided on the side of the exhaust channel facing the room, and an exhaust port is provided on the side of the exhaust channel facing the outside. The present invention realizes that when the filter hole is blocked and the permeability becomes low, the filter strip is reset after deformation under the action of wind force, and the filter strip is driven to reciprocate and oscillate during the reset process, so as to realize automatic cleaning of the surface of the filter strip and the inside of the formed filter hole, thereby ensuring the filtering effect and permeability of the filter frame, and reducing the increase in the load of the fresh air fan caused by the reduction in permeability due to blockage.

[0004] Although the above-disclosed device can automatically clean the surface of the filter strip and the inside of the formed filter hole by resetting the filter strip after deformation under the action of wind, driving the filter strip to oscillate and rub back and forth during the resetting process, when the surface of the filter frame is full of dust and impurities and is difficult to clean, it can only be replaced, and it is difficult to clean the dust on the surface of the filter frame. In addition, the replacement box and the storage box do not have a separation effect and are closed. Therefore, when the filter frame needs to be replaced later, it is not convenient enough, thereby reducing the practicability of the filter frame during use. Therefore, the present application provides an air-conditioning fresh air system to meet the needs. Summary of the invention

[0005] The technical problem to be solved by the present invention is to provide an air-conditioning fresh air system to solve the problem that when the surface of the existing filter frame is full of dust and impurities and is difficult to clean, the dust on the surface of the filter frame can only be cleaned by replacing it. In addition, the replacement box and the storage box do not have a separation effect, and the filter frame is not convenient to replace later.

[0006] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0007] The fresh air system of an air conditioner comprises an air inlet duct, an exhaust duct and a filter plate, and the diameter of the filter plate is larger than the diameter of the air inlet duct and the exhaust duct, the air inlet duct and the exhaust duct are connected to a guide frame, the upper and lower ends of the guide frame are connected to a fixing frame, and the two fixing frames are respectively fixedly connected to the surfaces of the air inlet duct and the exhaust duct, and storage barrels are inserted in the two fixing frames, and the diameter of the filter plate is adapted to the caliber of the storage barrels, the inner walls of the two storage barrels are elastically slidably provided with extrusion plates, the surface of each of the storage barrels is provided with a limiting assembly for limiting the displacement of the extrusion plates, the front ends of the two storage barrels are fixedly connected to two relative fixed frames and two relative stoppers are elastically provided, each of the fixed frames is elastically slidably provided with an extrusion wheel, and the front end surface of the extrusion wheel is flush with the back side of the stopper, the middle part of the guide frame is provided with a supporting mechanism, and the inner wall of the guide frame The cam is secured to the top of the support frame with two opposite sealing gaskets, and the sealing gaskets are located above the supporting mechanism, and holes are provided on the two storage barrels, and a top block is arranged on the top of the upper material fixing frame, and the top block is adapted to the plug hole, the top of the top block is hinged with a vertical rod, and the rear end of the vertical rod is fixedly connected to a limiting plate, and a push rod is arranged on the front of the material fixing frame at the bottom, the front end of the push rod is fixedly connected to a pressing plate, a first compression spring is sleeved on the push rod, and two ends of the first compression spring are respectively fixedly connected to the front side of the material fixing frame and the back side of the pressing plate, a cleaning mechanism is provided on the inner wall of the exhaust pipe, which includes a fixing plate, the fixing plate is fixedly connected to the inner wall of the exhaust pipe, and the fixing plate is located in front of the guide frame, a rotating shaft is rotatably connected to the middle part of the fixing plate, and a brush plate and a fan blade are respectively fixedly connected to the two ends of the rotating shaft, and an anti-rotation mechanism for limiting the rotation of the rotating shaft is provided on the surface of the exhaust pipe.

[0008] Optionally, the supporting mechanism includes two push plates and two storage grooves, and the storage grooves are adapted to the push plates, the two storage grooves are respectively opened on both sides of the inner wall of the guide frame, the front and back sides of the two push plates are fixedly connected with side plates, the inner walls of the two storage grooves are fixedly connected with two groups of opposite third guide rods, and the side plates are sleeved on each corresponding group of third guide rods, each of the third guide rods is fixedly connected with a sixth compression spring, and the two ends of the sixth compression spring are respectively fixedly connected to the side plates and the inner wall of the storage groove.

[0009] Optionally, the anti-rotation mechanism includes a limit block, a fixed shaft and a U-shaped frame, the limit block is fixedly connected to the front end of the rotating shaft, the fixed shaft is penetrated and arranged on the surface of the exhaust duct, the one end of the fixed shaft extending into the exhaust duct is fixedly connected with a positioning frame, and the positioning frame is adapted to the limit block, the U-shaped frame is fixedly connected to the surface of the exhaust duct, the surface of the fixed shaft is fixedly connected with two sealing plates, and the two sealing plates are respectively located inside and outside the exhaust duct, the left end of the fixed shaft is fixedly connected with a pull plate, the pull plate is fixedly connected with a second tension spring, and one end of the second tension spring is fixedly connected to the surface of the exhaust duct, a limiting hole is opened in the middle of the U-shaped frame, a rotating rod is penetrated in the limiting hole, one end of the rotating rod is rotatably connected to the pull plate, and the surface of the rotating rod is fixedly connected with an abutment plate adapted to the limiting hole.

[0010] Optionally, the front end of each storage barrel is fixedly connected to two relative mounting frames and two relative extension plates, the inner wall of each mounting frame is fixedly connected to a fifth compression spring, and the stop block slides in the corresponding mounting frame and is connected to the fifth compression spring, and an observation window is provided on the surface of each storage barrel.

[0011] Optionally, the inner wall of each fixed frame is fixedly connected to a second guide rod, and the extrusion wheel is sleeved on the corresponding second guide rod, each second guide rod is sleeved with a fourth compression spring, and both ends of the fourth compression spring are respectively fixedly connected to the inner wall of the fixed frame and the extrusion wheel.

[0012] Optionally, two opposite second through grooves and two opposite first through grooves are provided on the back of the two material fixing frames, the first through grooves are adapted to the fixed frame and the extrusion wheel, the second through grooves are adapted to the extension plate, and a sealing sheet is fixedly connected to one side of the inner wall of each of the first through groove and the second through groove.

[0013] Optionally, a positioning block is fixedly connected to the inner wall of each storage barrel, and the positioning block is arranged on the right side of the limiting component. There are two positioning blocks, and the two positioning blocks are arranged opposite to each other in the upper and lower directions.

[0014] Optionally, side frames are provided on both sides of the inner wall of each storage barrel, the inner wall of each side frame is fixedly connected to a first guide rod, and the two ends of the extrusion plate are respectively sleeved on the two first guide rods, each of the first guide rods is sleeved with a first tension spring, and the two ends of the first tension spring are respectively fixedly connected to the inner wall of the side frame and the surface of the extrusion plate.

[0015] Optionally, the limiting assembly includes two positioning rods, one end of the two positioning rods respectively passes through the two side frames and is inserted into the end of the extrusion plate, a third tension spring is fixedly connected to the middle part of each positioning rod, and the other end of the third tension spring is fixedly connected to the surface of the side frame.

[0016] Optionally, a clamping plate is hinged on the surface of each side frame, a clamping groove is opened on both side surfaces of each fixing frame, and one end of the clamping plate is clamped into the clamping groove, and the other end of each clamping plate is fixedly connected to a second compression spring, and one end of the second compression spring is fixedly connected to the surface of the side frame.

[0017] Compared with the prior art, the present invention has at least the following beneficial effects:

[0018] In the above scheme, by arranging a guide frame, a filter plate, two material fixing frames, two material storage barrels, a squeezing plate, a fixing frame, a squeezing wheel, a stopper, a supporting mechanism, a sealing gasket, a jack, a vertical rod, a top block, a limiting plate, a pressing plate, a top rod and a first compression spring, the vertical rod can be flipped into a vertical shape, and then the vertical rod is moved downward, so that the top block can push the frontmost filter plate downward until it is pushed into the air inlet pipe, thereby filtering the air entering the air inlet pipe. At this time, the filter plate will be supported by the two pushing plates to prevent it from falling. When the filter plate in the air inlet pipe needs to be cleaned after being used for a period of time, the frontmost filter plate in the upper material storage barrel is squeezed downward by the vertical rod, and then the filter plate in the air inlet pipe is pushed downward into the exhaust pipe, so that the new filter plate is replaced in the air inlet pipe, and then the new filter plate is used. Use the exhaust pipe to discharge the indoor air, and the dust will be blown off the filter plate in the exhaust pipe, which has the effect of automatic cleaning. Repeat the above steps, and the filter plate in the storage barrel can be used in an orderly manner, and can be automatically cleaned in an orderly manner. When the filter plate in the exhaust pipe is squeezed and moved downward by the upper filter plate, it will squeeze the two extrusion wheels below to move and slide into the storage barrel below, and then press the pressing plate to make the push rod push the filter plate in the lower storage barrel away from the two extrusion wheels, so that the subsequent filter plates can slide into the storage barrel normally. When the filter plate in the upper storage barrel is used up, you only need to remove the two storage barrels and exchange their positions, so as to facilitate the replacement of the filter plates and effectively improve the practicability of the fresh air system.

[0019] By arranging the anti-rotation mechanism and the cleaning mechanism, the air blown out of the exhaust pipe can be used to drive the fan blades to rotate, and the rotating shaft can further drive the brush plate to rotate, thereby cleaning the filter plate in the exhaust pipe, further improving the cleaning effect of the filter plate and preventing the fan blades from continuously driving the rotating shaft to rotate. During the specific operation, it is only necessary to rotate the rotating rod to make the push plate rotate and move from the limiting hole, and under the elastic force of the second tension spring, the positioning frame can be moved toward the limiting block until it contacts the limiting block, thereby limiting the limiting block and preventing further rotation. When the fan blades need to rotate normally, it is only necessary to pull the rotating rod to pull the push plate out of the limiting hole, and then rotate the rotating rod to make the push plate push against the U-shaped frame to ensure the normal separation of the positioning frame and the limiting block. At the same time, the sealing plate will also seal the inner wall of the exhaust pipe to prevent air from being discharged from the fixed shaft.

[0020] By setting a limit assembly, the extrusion plate can be positioned. When the storage barrel below is in normal use, the extrusion plate only needs to be manually pushed to the deepest part of the storage barrel, and the two positioning rods can be used to limit the two ends of the extrusion plate, thereby preventing the extrusion plate from sliding at will, so as to facilitate the subsequent storage of the cleaned filter plate. When the extrusion plate needs to be used normally, the two positioning rods only need to be pulled outward to move the extrusion plate under the elastic force of the first tension spring.

[0021] By setting the clamping plate, the clamping slot and the second compression spring, the storage barrel can be quickly installed in the fixed material frame. The storage barrel only needs to be inserted into the fixed material frame to automatically make the front end of the clamping plate clamped into the clamping slot, thereby preventing the storage barrel from falling. When the storage barrel needs to be removed from the fixed material frame, it is only necessary to press the rear ends of the two clamping plates and then pull it out. It is more convenient to use and more flexible to operate. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The accompanying drawings, which are incorporated herein and constitute a part of the specification, illustrate embodiments of the invention and, together with the description, further serve to explain the principles of the invention and to enable those skilled in the relevant art to make and use the invention.

[0023] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0024] Figure 2 It is a front view cross-sectional structural schematic diagram of the present invention;

[0025] Figure 3 It is a partial cross-sectional view of the present invention;

[0026] Figure 4 It is a schematic diagram of the side cross-sectional structure of the present invention;

[0027] Figure 5 It is a schematic diagram of the assembly structure of the material setting frame, the material storage barrel and the vertical pole of the present invention;

[0028] Figure 6 It is a schematic diagram of the overall structure of the material storage barrel of the present invention;

[0029] Figure 7 It is a structural schematic diagram of the material setting frame and the vertical pole of the present invention;

[0030] Figure 8 It is a schematic diagram of the cross-sectional structure of the material storage barrel of the present invention;

[0031] Fig. 9 It is a structural schematic diagram of the cleaning mechanism and the anti-rotation mechanism of the present invention;

[0032] Fig.10 It is a structural schematic diagram of the push plate of the present invention;

[0033] Fig.11 It is a structural schematic diagram of the vertical pole of the present invention;

[0034] Fig.12 For the present invention Figure 1 A magnified schematic diagram of the structure at center A;

[0035] Fig.13 For the present invention Figure 2 A magnified schematic diagram of the structure at B in the figure.

[0036] [reference numerals]

[0037] 1. Inlet pipe; 2. Exhaust pipe; 3. Guide frame; 4. Fixed material frame; 5. Storage barrel; 61. Vertical pole; 62. Top block; 63. Limit plate; 71. Press plate; 72. Top rod; 73. First compression spring; 8. Filter plate; 9. Snap-on plate; 10. Positioning rod; 11. Side frame; 12. Socket; 13. Extension plate; 14. Fixed frame; 15. Extrusion wheel; 16. Sealing pad; 17. Storage slot; 18. Push plate; 19. Limit block; 20. Fan blade; 21. Fixed shaft; 22. U-shaped frame; 23. Rotating rod; 24. Brush plate; 25. First tension spring; 26. First guide rod; 27. Extrusion plate; 28. Positioning block; 29. ​​Rotating shaft; 30. Fixed plate; 31. Positioning frame; 32. Sealing plate; 33. Second tension spring; 34. Pull plate; 35. First through slot; 36. Second through slot; 37. Second compression spring; 38. Third tension spring; 39. Slot; 40. Mounting frame; 41. Stop block; 42. Fourth compression spring; 43. Second guide rod; 44. Fifth compression spring; 45. Side plate; 46. Sixth compression spring; 47. Third guide rod; 48. Butt plate; 49. Limiting hole.

[0038] As shown in the figure, in order to clearly implement the structure of the embodiment of the present invention, specific structures and devices are marked in the figure, but this is only for illustrative purposes and is not intended to limit the present invention to the specific structure, device and environment. According to specific needs, ordinary technicians in this field can adjust or modify these devices and environments. DETAILED DESCRIPTION

[0039] The air conditioning fresh air system provided by the present invention is described in detail below in conjunction with the accompanying drawings and specific embodiments. At the same time, it is explained here that in order to make the embodiments more detailed, the following embodiments are the best and preferred embodiments, and those skilled in the art may also adopt other alternative methods to implement some known technologies; and the accompanying drawings are only for a more specific description of the embodiments, and are not intended to specifically limit the present invention.

[0040] It should be noted that the references to "one embodiment", "an embodiment", "an exemplary embodiment", "some embodiments" and the like in the specification indicate that the embodiments described may include specific features, structures or characteristics, but not every embodiment may include the specific features, structures or characteristics. In addition, when a specific feature, structure or characteristic is described in conjunction with an embodiment, it should be within the knowledge of a person skilled in the art to implement such feature, structure or characteristic in conjunction with other embodiments (whether or not explicitly described).

[0041] In general, a term can be understood, at least in part, from its use in context. For example, depending, at least in part, on the context, the term "one or more" as used herein can be used to describe any feature, structure, or characteristic in the singular sense, or can be used to describe a combination of features, structures, or characteristics in the plural sense. Additionally, the term "based on" can be understood as not necessarily intended to convey an exclusive set of factors, but can instead, depending, at least in part, on the context, allow for the presence of other factors that are not necessarily explicitly described.

[0042] It will be understood that the meanings of “on,” “over,” and “above” in the present invention should be interpreted in the broadest manner, so that “on” not only means “directly on” something, but also includes the meaning of being “on” something with intervening features or layers therebetween, and “on” or “over” not only means “on” or “above” something, but also includes the meaning of being “on” or “above” something with no intervening features or layers therebetween.

[0043] Additionally, spatially relative terms such as "under," "beneath," "lower," "above," "upper," and the like may be used herein for descriptive convenience to describe the relationship of one element or feature to another element or features, as shown in the accompanying drawings. Spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the accompanying drawings. The device may be oriented in other ways, and the spatially relative descriptors used herein may be similarly interpreted accordingly.

[0044] like Figures 1 to 13As shown, an embodiment of the present invention provides an air-conditioning fresh air system, comprising an air inlet duct 1, an exhaust duct 2 and a filter plate 8, wherein the diameter of the filter plate 8 is larger than the diameters of the air inlet duct 1 and the exhaust duct 2, and the air inlet duct 1 and the exhaust duct 2 are connected to a guide frame 3, so that the filter plate 8 in the air inlet duct 1 can slide into the exhaust duct 2 through the guide frame 3. When the filter plate 8 is used for filtering in the air inlet duct 1, the air in the exhaust duct 2 will not flow into the air inlet duct 1, and the outer ring of the filter plate 8 will seal the air inlet duct 1. When the air inlet duct 1 inhales the outside air, it will not flow into the exhaust duct 2, and the air can only circulate in the middle of the filter plate 8. When the filter plate 8 in the air inlet duct 1 needs to be cleaned, it is only necessary to push and slide the filter plate 8 with cleaning into the exhaust duct 2, so as to facilitate the operation of the fresh air conditioning system. The air in the room is discharged by the exhaust pipe 2, so as to blow out the dust and impurities on the surface of the filter plate 8. The upper and lower ends of the guide frame 3 are connected with the fixed material frames 4, and the two fixed material frames 4 are respectively fixedly connected to the surfaces of the air inlet pipe 1 and the exhaust pipe 2, and the two fixed material frames 4 are arranged opposite to each other. Storage barrels 5 are inserted in the two fixed material frames 4, so that the storage barrels 5 have a detachable effect, so that the upper and lower storage barrels 5 can be replaced and used. The function of the storage barrels 5 is to place the filter plates 8 in an orderly manner. The upper storage barrel 5 is used to transport the cleaned filter plates 8 in an orderly manner, and the lower storage barrel 5 is used to collect the cleaned filter plates 8, and the diameter of the filter plates 8 is adapted to the caliber of the storage barrel 5, so that the filter plates 8 can be accurately placed in the storage barrel 5. The filter plates 8 in the upper storage barrel 5 can be transported from the front end. The surface of each storage barrel 5 is provided with a limiter assembly for limiting the displacement of the limiter assembly. By setting the limiter assembly, the movement of the lower limiter assembly can be limited, thereby ensuring the normal placement of the filter plates 8 in the lower storage barrel 5. The front ends of the two storage barrels 5 are fixedly connected to two relatively fixed frames 14 and elastically provided with two relatively stoppers 41. The front faces of the stoppers 41 are inclined to ensure that the filter plates 8 are normally pushed backward from the front end of the storage barrel 5. 4 are elastically and slidably provided with extrusion wheels 15, and the front end surface of the extrusion wheel 15 is flush with the back surface of the stopper 41, so that the two extrusion wheels 15 at the bottom can support the filter plate 8 in the exhaust pipe 2, and the two extrusion wheels 15 at the top can support the filter plate 8 in the upper storage barrel 5, and the two extrusion wheels 15 at the bottom can squeeze the filter plate 8 falling into the lower storage barrel 5 to ensure that the filter plate 8 falls into the storage barrel 5 normally. A supporting mechanism is provided in the middle of the guide frame 3. Through the setting of the supporting mechanism, the filter plate 8 in the air inlet pipe 1 can be prevented from falling, and the filter plate 8 in the exhaust pipe 2 can also be automatically centered. The inner wall of the guide frame 3 is fixedly connected with two opposite sealing pads 16.And the sealing gasket 16 is located above the supporting mechanism. With the setting of the sealing gasket 16, it can be further ensured that the air inlet pipe 1 and the exhaust pipe 2 will not affect each other, and the filter plate 8 in the air inlet pipe 1 can also push the two sealing gaskets 16 normally when moving downward. Under normal conditions, the filter plate 8 in the air inlet pipe 1 will contact the two sealing gaskets 16, and the outer ring of the front side of the filter plate 8 is convex outward, so the dust on the surface will not be scraped off by the sealing gasket 16. The two storage barrels 5 are provided with a plug hole 12, and the top of the upper fixed material frame 4 is penetrated by a top block 62, and the top block 62 is adapted to the plug hole 12, and the top block 62 can be normally inserted into the plug hole 12, and the top of the top block 62 is hinged with The vertical rod 61, and the rear end of the vertical rod 61 is fixedly connected to the limit plate 63, the limit plate 63 can prevent the vertical rod 61 from sliding into the air inlet pipe 1, the function of the vertical rod 61 is to push the filter plate 8 in the upper storage barrel 5 downward, so as to push the filter plate 8 in the original air inlet pipe 1 downward, and then push it into the exhaust pipe 2, so as to automatically clean it. When the vertical rod 61 is not in use, the vertical rod 61 is directly flipped to the left side, so it will not occupy more space. When the vertical rod 61 is in use, the vertical rod 61 is flipped to a vertical shape and then pushed downward. A push rod 72 is provided through the front side of the fixed material frame 4 below, and a pressing plate 71 is fixedly connected to the front end of the push rod 72. A first compression spring 73 is sleeved on the push rod 72 The two ends of the first compression spring 73 are respectively fixedly connected to the front side of the fixed material frame 4 and the back side of the pressing plate 71. Through the setting of the pressing plate 71, the push rod 72 and the first compression spring 73, when the filter plate 8 in the exhaust pipe 2 falls into the storage barrel 5 below, the pressing plate 71 can be pushed to move, so that the push rod 72 pushes the filter plate 8 into the storage barrel 5, so that the subsequent filter plate 8 can slide normally into the lower storage barrel 5, thereby playing a role in orderly pushing and storing the filter plates 8 in the lower storage barrel 5. When the filter plate 8 in the upper storage barrel 5 is used up, the lower storage barrel 5 can be removed, and then the upper storage barrel 5 can be removed and replaced. The inner wall of the exhaust pipe 2 is provided with a cleaning mechanism, which includes a fixed The plate 30 is fixedly connected to the inner wall of the exhaust pipe 2, and the fixed plate 30 is located in front of the guide frame 3. The middle part of the fixed plate 30 is rotatably connected with the rotating shaft 29, and the two ends of the rotating shaft 29 are respectively fixedly connected with the brush plate 24 and the fan blade 20. Through the setting of the cleaning mechanism, the air blown out of the exhaust pipe 2 can be used to drive the fan blade 20 to rotate, and the rotating shaft 29 can further drive the brush plate 24 to rotate, so as to clean the filter plate 8 in the exhaust pipe 2, further improving the cleaning effect of the filter plate 8. The surface of the exhaust pipe 2 is provided with an anti-rotation mechanism for limiting the rotation of the rotating shaft 29. The anti-rotation mechanism can prevent the rotating shaft 29 from being in a rotating state all the time, thereby preventing the brush plate 24 from causing serious wear on the filter plate 8.

[0045] like Figure 2 , Fig.10 and Fig.13As shown, the support mechanism includes two push plates 18 and two receiving grooves 17, and the receiving grooves 17 are adapted to the push plates 18. The two receiving grooves 17 are respectively opened on both sides of the inner wall of the guide frame 3, so that the push plates 18 can be squeezed into the receiving grooves 17 through the filter plate 8, thereby ensuring the normal downward sliding of the filter plate 8. The front and back sides of the two push plates 18 are fixedly connected with side plates 45, and the inner walls of the two receiving grooves 17 are fixedly connected with two sets of opposite third guide rods 47, and the side plates 45 are sleeved on each corresponding set of third guide rods 47. A sixth compression spring 46 is fixedly connected to each third guide rod 47, and the two ends of the sixth compression spring 46 are respectively fixedly connected to the side plate 45 and the inner wall of the storage groove 17. Through the setting of the above structure, the two push plates 18 can support the upper filter plate 8. When the upper filter plate 8 is squeezed into the exhaust duct 2 below, the elastic force of the sixth compression spring 46 can be used to squeeze the lower filter plate 8 into the exhaust duct 2 to ensure that the filter plate 8 falling into the exhaust duct 2 is normally cleaned.

[0046] like Figure 3 , Fig. 9 and Fig.12As shown, the anti-rotation mechanism includes a limit block 19, a fixed shaft 21 and a U-shaped frame 22. The limit block 19 is fixedly connected to the front end of the rotating shaft 29. The fixed shaft 21 is arranged on the surface of the exhaust pipe 2 so that the fixed shaft 21 can slide through the exhaust pipe 2. One end of the fixed shaft 21 extending into the exhaust pipe 2 is fixedly connected with a positioning frame 31, and the positioning frame 31 is adapted to the limit block 19. When the limit block 19 needs to be prevented from rotating, the positioning frame 31 only needs to be brought into contact with the limit block 19 to prevent the limit block 19 from rotating. The block 19 rotates, the U-shaped frame 22 is fixedly connected to the surface of the exhaust pipe 2, the surface of the fixed shaft 21 is fixedly connected to two sealing plates 32, and the two sealing plates 32 are respectively located inside and outside the exhaust pipe 2, so that the two sealing plates 32 can respectively seal the inner wall and outer surface of the exhaust pipe 2, and the left end of the fixed shaft 21 is fixedly connected to a pull plate 34, and the pull plate 34 is fixedly connected to a second tension spring 33, and one end of the second tension spring 33 is fixedly connected to the surface of the exhaust pipe 2, and the second tension spring 33 is sleeved on the fixed shaft 21. The U-shaped frame 22 has a limited hole 49 in the middle, and a rotating rod 23 is arranged in the limited hole 49. One end of the rotating rod 23 is rotatably connected to the pull plate 34. The surface of the rotating rod 23 is fixedly connected with a stop plate 48 that matches the limited hole 49. By setting the above structure, it is possible to prevent the fan blade 20 from continuously driving the rotating shaft 29 to rotate. In specific operation, it is only necessary to rotate the rotating rod 23 to make the stop plate 48 rotate and move from the limited hole 49, and the positioning can be adjusted by using the elastic force of the second tension spring 33. The frame 31 moves toward the limit block 19 until it contacts the limit block 19, thereby limiting the limit block 19 to prevent further rotation. When the fan blade 20 needs to rotate normally, it is only necessary to pull the rotating rod 23 to pull the abutment plate 48 out of the limit hole 49, and then rotate the rotating rod 23 to press the abutment plate 48 against the U-shaped frame 22 to ensure the normal separation of the positioning frame 31 and the limit block 19. At the same time, the sealing plate 32 will also seal the inner wall of the exhaust duct 2 to prevent air from being discharged from the fixed shaft 21.

[0047] like Figure 6 and Figure 8 As shown, the front end of each storage barrel 5 is fixedly connected to two opposite mounting frames 40 and two opposite extension plates 13, the inner wall of each mounting frame 40 is fixedly connected to a fifth compression spring 44, and the block 41 slides in the corresponding mounting frame 40 and is connected to the fifth compression spring 44. Through the setting of the above structure, the block 41 can have an elastic sliding effect, so that when the filter plate 8 is pushed from the front end of the storage barrel 5, the two blocks 41 can be squeezed to move toward the mounting frame 40. The surface of each storage barrel 5 is provided with an observation window, through which personnel can observe the use of the filter plates 8 in the two storage barrels 5.

[0048] like Figure 6 and Figure 8As shown, the inner wall of each fixed frame 14 is fixedly connected with a second guide rod 43, and the extrusion wheel 15 is sleeved on the corresponding second guide rod 43, and each second guide rod 43 is sleeved with a fourth compression spring 42, and the two ends of the fourth compression spring 42 are respectively fixedly connected to the inner wall of the fixed frame 14 and the extrusion wheel 15. Through the setting of the above structure, the normal elastic sliding effect of the extrusion wheel 15 is guaranteed. When the upper filter plate 8 squeezes the two extrusion wheels 15, the two extrusion wheels 15 will move toward both sides to ensure that the filter plate 8 slides downward smoothly.

[0049] like Figure 5 and Figure 7 As shown, the back sides of the two fixing frames 4 are provided with two opposite second through grooves 36 and two opposite first through grooves 35, the first through grooves 35 are adapted to the fixed frame 14 and the extrusion wheel 15, the second through grooves 36 are adapted to the extension plate 13, and a sealing sheet is fixedly connected to one side of the inner wall of each first through groove 35 and the second through groove 36. Through the arrangement of the above structure, it can be ensured that after the storage barrel 5 is inserted into the fixing frame 4, external dust is prevented from entering the fixing frame 4, thereby ensuring the cleaning effect of the filter plate 8 in the storage barrel 5, and when the storage barrel 5 is inserted into the fixing frame 4, the corresponding sealing sheet will be pushed open, and the sealing sheet can be restored to its original state after the corresponding components are away from the sealing sheet.

[0050] like Figure 4 and Figure 8 As shown, a positioning block 28 is fixedly connected to the inner wall of each storage barrel 5, and the positioning block 28 is arranged on the right side of the limiting assembly. There are two positioning blocks 28, and the two positioning blocks 28 are arranged opposite to each other up and down. Through the setting of the positioning block 28, the filter plate 8 in the storage barrel 5 can be limited, ensuring that after the positioning of the extrusion plate 27 is released, the extrusion plate 27 can push the filter plate 8 normally.

[0051] like Figure 4 and Figure 8 As shown, side frames 11 are provided on both sides of the inner wall of each storage barrel 5, and the inner wall of each side frame 11 is fixedly connected with a first guide rod 26, and the two ends of the extrusion plate 27 are respectively sleeved on the two first guide rods 26, and each first guide rod 26 is sleeved with a first tension spring 25, and the two ends of the first tension spring 25 are respectively fixedly connected to the inner wall of the side frame 11 and the surface of the extrusion plate 27. Through the setting of the above structure, it can be ensured that the two ends of the extrusion plate 27 slide in the side frame 11, and when the filter plate 8 slides in the storage barrel 5, it will not contact the first tension spring 25 and the first guide rod 26, so that the extrusion plate 27 can normally push the filter plate 8 to move.

[0052] like Figure 8As shown, the limiting assembly includes two positioning rods 10, one end of the two positioning rods 10 respectively passes through the two side frames 11 and is inserted into the end of the extrusion plate 27, the middle part of each positioning rod 10 is fixedly connected with a third tension spring 38, and the other end of the third tension spring 38 is fixedly connected to the surface of the side frame 11. Through the setting of the limiting mechanism, when the storage barrel 5 below is used normally, it is only necessary to manually push the extrusion plate 27 to the deepest part of the storage barrel 5, and the two positioning rods 10 can be used to limit the two ends of the extrusion plate 27, thereby preventing the extrusion plate 27 from sliding at will, so as to facilitate the subsequent storage of the cleaned filter plate 8. When the extrusion plate 27 needs to be used normally, it is only necessary to pull the two positioning rods 10 outward to move the extrusion plate 27 under the elastic force of the first tension spring 25.

[0053] like Figures 5 to 8 As shown, the surface of each side frame 11 is hinged with a clamping plate 9, and the front end of the clamping plate 9 is an inclined surface. A clamping groove 39 is opened on both side surfaces of each fixing frame 4, and one end of the clamping plate 9 is clamped into the clamping groove 39, and the other end of each clamping plate 9 is fixedly connected to a second compression spring 37, and one end of the second compression spring 37 is fixedly connected to the surface of the side frame 11. Through the setting of the above structure, the storage barrel 5 can be quickly installed into the fixing frame 4. Only by inserting the storage barrel 5 into the fixing frame 4, the front end of the clamping plate 9 can be automatically clamped into the clamping groove 39, thereby preventing the storage barrel 5 from falling. When the storage barrel 5 needs to be removed from the fixing frame 4, it is only necessary to press the rear ends of the two clamping plates 9 and then pull it out. It is more convenient to use and more flexible to operate.

[0054] The working principle provided by the present invention is that the clean filter plates 8 are first stored in the upper storage barrel 5 in an orderly manner, and the positioning of the upper extrusion plate 27 is released to ensure that the extrusion plate 27 can normally push the filter plates 8 in the storage barrel 5 to move forward, and the frontmost filter plate 8 will be limited and blocked by the stopper 41 to avoid falling off. Then the user turns the vertical rod 61 into a vertical state, and then moves the vertical rod 61 downward, so that the top block 62 can push the frontmost filter plate 8 downward until it is pushed into the air inlet pipe 1, thereby filtering the air entering the air inlet pipe 1. The filter plate 8 will be supported by two push plates 18 to prevent it from falling. When the filter plate 8 in the air inlet pipe 1 needs to be cleaned after being used for a period of time, the front end filter plate 8 in the upper storage barrel 5 is squeezed downward by the vertical rod 61, and then the filter plate 8 in the air inlet pipe 1 is pushed downward into the exhaust pipe 2, so that the new filter plate 8 is placed in the air inlet pipe 1 again, and then the exhaust pipe 2 is used to discharge the indoor air. At this time, the filter plate 8 in the exhaust pipe 2 will be blown to dust, which has the effect of automatic cleaning. At the same time, the limit of the limit block 19 is released, so that the wind in the exhaust pipe 2 will hit the fan blades 2 0 blows, further causing the rotating shaft 29 to drive the brush plate 24 to rotate, thereby cleaning the front of the filter plate 8 to ensure cleaning, and then rotating the rotating rod 23 to rotate the abutment plate 48 from the limiting hole 49, and using the elastic force of the second tension spring 33 to move the positioning frame 31 toward the limiting block 19 until it contacts the limiting block 19, thereby limiting the limiting block 19 to prevent further rotation, thereby preventing the brush plate 24 from causing wear to the surface of the filter plate 8, repeating the above steps, the filter plate 8 in the storage barrel 5 can be used in an orderly manner, and can be automatically cleaned in an orderly manner. When the filter plate 8 in the exhaust duct 2 is squeezed and moved downward by the upper filter plate 8, the two squeezing wheels 15 below will be squeezed to move and slide into the storage barrel 5 below. Then the pressing plate 71 is pressed to make the push rod 72 push the filter plate 8 in the lower storage barrel 5 away from the two squeezing wheels 15, so that the subsequent filter plate 8 can slide normally into the storage barrel 5. When the filter plate 8 in the upper storage barrel 5 is used up, it is only necessary to remove the two storage barrels 5 and exchange their positions, so as to facilitate the replacement and use of the filter plates 8, and effectively improve the practicality of the fresh air system.

[0055] The present invention covers any substitution, modification, equivalent method and scheme made on the essence and scope of the present invention. In order to make the public have a thorough understanding of the present invention, specific details are described in detail in the following preferred embodiments of the present invention, but those skilled in the art can fully understand the present invention without the description of these details. In addition, in order to avoid unnecessary confusion about the essence of the present invention, well-known methods, processes, procedures, components and circuits are not described in detail.

[0056] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. An air conditioning fresh air system, comprising an air inlet pipe (1), an air outlet pipe (2) and a filter plate (8), wherein the diameter of the filter plate (8) is larger than the diameters of the air inlet pipe (1) and the air outlet pipe (2), and characterized in that: The air inlet pipe (1) and the air outlet pipe (2) are connected to a guide frame (3), and the upper and lower ends of the guide frame (3) are connected to a material fixing frame (4), and the two material fixing frames (4) are respectively fixed to the surface of the air inlet pipe (1) and the air outlet pipe (2), and the two material fixing frames (4) are inserted into the two material fixing frames (4), and the diameter of the filter plate (8) is matched with the caliber of the material fixing barrel (5), and the inner walls of the two material fixing barrels (5) are elastically slidably provided with an extrusion plate (27), and the surface of each of the material fixing barrels (5) is provided with a material fixing frame (4) for limiting the extrusion plate (27). 7) a displacement limiting component, the front ends of the two storage barrels (5) are fixedly connected to two opposite fixing frames (14) and two opposite stoppers (41) are elastically arranged, each of the fixing frames (14) is elastically slidably arranged with an extrusion wheel (15), and the front end surface of the extrusion wheel (15) is flush with the back surface of the stopper (41), a support mechanism is arranged in the middle of the guide frame (3), the inner wall of the guide frame (3) is fixedly connected to two opposite sealing pads (16), and the sealing pads (16) are located above the support mechanism, and the two storage barrels (5) are fixedly connected to the inner wall of the guide frame (3), and the sealing pads (16) are located above the support mechanism. 5) are provided with a plug hole (12), the top end of the fixed material frame (4) located at the top is penetrated by a top block (62), and the top block (62) is adapted to the plug hole (12), the top end of the top block (62) is hinged with a vertical rod (61), and the rear end of the vertical rod (61) is fixedly connected to a limiting plate (63), and the front side of the fixed material frame (4) located at the bottom is penetrated by a top rod (72), the front end of the top rod (72) is fixedly connected to a pressing plate (71), and a first compression spring (73) is sleeved on the top rod (72), and both ends of the first compression spring (73) are The cleaning mechanism is respectively fixed to the front side of the material fixing frame (4) and the back side of the pressing plate (71), and the inner wall of the exhaust pipe (2) is provided with a cleaning mechanism, which comprises a fixing plate (30), the fixing plate (30) is fixed to the inner wall of the exhaust pipe (2), and the fixing plate (30) is located in front of the guide frame (3), the middle part of the fixing plate (30) is rotatably connected with a rotating shaft (29), and the two ends of the rotating shaft (29) are respectively fixed with a brush plate (24) and a fan blade (20), and the surface of the exhaust pipe (2) is provided with an anti-rotation mechanism for limiting the rotation of the rotating shaft (29).

2. The air conditioning fresh air system according to claim 1, characterized in that: The support mechanism comprises two push plates (18) and two receiving grooves (17), and the receiving grooves (17) are matched with the push plates (18). The two receiving grooves (17) are respectively arranged on both sides of the inner wall of the guide frame (3). The front and back sides of the two push plates (18) are fixedly connected with side plates (45). The inner walls of the two receiving grooves (17) are fixedly connected with two groups of opposite third guide rods (47), and the side plates (45) are sleeved on each corresponding group of third guide rods (47). Each of the third guide rods (47) is fixedly connected with a sixth compression spring (46), and the two ends of the sixth compression spring (46) are respectively fixedly connected to the side plates (45) and the inner wall of the receiving groove (17).

3. The air conditioning fresh air system according to claim 1, characterized in that: The anti-rotation mechanism comprises a limit block (19), a fixed shaft (21) and a U-shaped frame (22); the limit block (19) is fixedly connected to the front end of the rotating shaft (29); the fixed shaft (21) penetrates and is arranged on the surface of the exhaust pipe (2); one end of the fixed shaft (21) extending into the exhaust pipe (2) is fixedly connected to a positioning frame (31); the positioning frame (31) is matched with the limit block (19); the U-shaped frame (22) is fixedly connected to the surface of the exhaust pipe (2); the surface of the fixed shaft (21) is fixedly connected to two sealing plates (32); and the two sealing plates (32) are fixedly connected to the surface of the exhaust pipe (2). ) are respectively located inside and outside the exhaust pipe (2), the left end of the fixed shaft (21) is fixedly connected with a pull plate (34), the pull plate (34) is fixedly connected with a second tension spring (33), and one end of the second tension spring (33) is fixedly connected to the surface of the exhaust pipe (2), a limiting hole (49) is provided in the middle of the U-shaped frame (22), a rotating rod (23) is provided through the limiting hole (49), one end of the rotating rod (23) is rotatably connected to the pull plate (34), and the surface of the rotating rod (23) is fixedly connected with a stop plate (48) adapted to the limiting hole (49).

4. The air conditioning fresh air system according to claim 1, characterized in that: The front end of each storage barrel (5) is fixedly connected to two opposite mounting frames (40) and two opposite extension plates (13), the inner wall of each mounting frame (40) is fixedly connected to a fifth compression spring (44), and the stopper (41) slides in the corresponding mounting frame (40) and is connected to the fifth compression spring (44), and the surface of each storage barrel (5) is provided with an observation window.

5. The air conditioning fresh air system according to claim 1, characterized in that: The inner wall of each fixed frame (14) is fixedly connected to a second guide rod (43), and the extrusion wheel (15) is sleeved on the corresponding second guide rod (43). Each second guide rod (43) is sleeved with a fourth compression spring (42), and the two ends of the fourth compression spring (42) are respectively fixedly connected to the inner wall of the fixed frame (14) and the extrusion wheel (15).

6. The air conditioning fresh air system according to claim 1, characterized in that: The back sides of the two material fixing frames (4) are provided with two opposite second through grooves (36) and two opposite first through grooves (35); the first through grooves (35) are adapted to the fixed frame (14) and the extrusion wheel (15); the second through grooves (36) are adapted to the extension plate (13); and a sealing sheet is fixedly connected to one side of the inner wall of each of the first through groove (35) and the second through groove (36).

7. The air conditioning fresh air system according to claim 1, characterized in that: A positioning block (28) is fixedly connected to the inner wall of each storage barrel (5), and the positioning block (28) is arranged on the right side of the limiting component. There are two positioning blocks (28), and the two positioning blocks (28) are arranged opposite to each other in an upper and lower manner.

8. The air conditioning fresh air system according to claim 1, characterized in that: Side frames (11) are provided on both sides of the inner wall of each storage barrel (5), the inner wall of each side frame (11) is fixedly connected to a first guide rod (26), and the two ends of an extrusion plate (27) are respectively sleeved on the two first guide rods (26), each first guide rod (26) is sleeved with a first tension spring (25), and the two ends of the first tension spring (25) are respectively fixedly connected to the inner wall of the side frame (11) and the surface of the extrusion plate (27).

9. The air conditioning fresh air system according to claim 8, characterized in that: The limiting assembly comprises two positioning rods (10), one end of each of the two positioning rods (10) respectively passes through the two side frames (11) and is inserted into the end of the extrusion plate (27), a third tension spring (38) is fixedly connected to the middle of each positioning rod (10), and the other end of the third tension spring (38) is fixedly connected to the surface of the side frame (11).

10. The air conditioning fresh air system according to claim 8, characterized in that: A clamping plate (9) is hingedly connected to the surface of each side frame (11), a clamping groove (39) is provided on both side surfaces of each fixed material frame (4), and one end of the clamping plate (9) is clamped into the clamping groove (39), and the other end of each clamping plate (9) is fixedly connected to a second compression spring (37), and one end of the second compression spring (37) is fixedly connected to the surface of the side frame (11).

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