Air filter and purification process thereof

Abstract

The invention discloses an air filter and a purification process thereof, and relates to the technical field of air filtration; the invention comprises a purification installation part, wherein leakproof sealing parts are installed on both upper and lower sides of the purification installation part, and the two leakproof sealing parts are respectively used to seal the upper and lower sides of the purification installation part; two opening control parts are installed on the purification installation part, and the two opening control parts are respectively used to fit and extrude the two leakproof sealing parts; an expansion protective pipe part is installed on the purification installation part, and the expansion protective pipe part is used to fit the exhaust pipe of an air conditioner; the air-conditioning duct can be made tidier, and no manual cleaning work is required again, and it is also more suitable for the characteristics of long air-conditioning ducts in aircrafts, and it is also more suitable for high-requirement purification standards, and the tidiness of the air-conditioning duct can be improved, so as to solve the problem that the current air filter is not convenient to be sealed and leakproof when disassembled and replaced, and a large amount of dust and impurities will also adhere to the surface of the air-conditioning duct that has been used for a long time.

Description

Technical Field

[0001] The invention relates to the technical field of air filtration, in particular to an air filter and a purification process thereof. Background Art

[0002] Most civil airliners are equipped with a recirculation system to supply air to the cabin by mixing fresh air with recirculated air. The recirculation system is mainly composed of an air filter, a recirculation fan, etc. The exhaust from the air conditioner needs to be sent into the cabin through a pipe after dust removal and purification through an air filter. The air filter is the core part of the entire recirculation system and is directly related to the air quality. During installation, the air filter needs to be inserted into the filter slot reserved in the air conditioning duct. The recirculation system usually requires regular maintenance. During maintenance, the baffle on the air conditioning exhaust duct needs to be removed and the used air filter needs to be replaced. At present, when removing and replacing air filters, manual operation usually requires wearing protective clothing and slow operation. It is not convenient to seal and leak-proof the air filter, and dust and impurities are easy to leak. The air filter has poor dust-proof effect, and it is not convenient to protect the inner wall of the air conditioning duct from dust. A large amount of dust and impurities will also adhere to the surface of the air conditioning duct that has been used for a long time, affecting the sanitary quality. Mechanic repair personnel need to remove a circle of bolts on the baffle of the air conditioning exhaust duct to know the use of the filter material, which is not convenient for quick inspection and is prone to floating dust leakage and cabin pollution.

[0003] To this end, we propose an air filter and a purification process thereof. Summary of the invention

[0004] The purpose of the present invention is to provide an air filter and a purification process thereof to solve the problem that the current air filter is not convenient for sealing and leak-proofing, and a large amount of dust and impurities will adhere to the surface of the air-conditioning pipe after long-term use.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an air filter comprises a purification mounting part, wherein leak-proof sealing parts are installed on both the upper and lower sides of the purification mounting part, and the two leak-proof sealing parts are respectively used to seal the upper and lower sides of the purification mounting part; two opening control parts are installed on the purification mounting part, and the two opening control parts are respectively used to fit and squeeze the two leak-proof sealing parts; an expansion protective pipe part is installed on the purification mounting part, and the expansion protective pipe part is used to fit the exhaust pipe of the air conditioner; an anti-backflow part is installed on the expansion protective pipe part; the anti-backflow part is used to prevent dust backflow; an inspection mounting part is installed on the purification mounting part; a sampling part is installed on the inspection mounting part; the sampling part is used to absorb dust; the purification mounting part comprises: a purifier shell, a support plate and a ventilation groove, and two support plates are fixedly installed on the upper and lower sides of the purifier shell respectively; the purifier shell is a hollow structure; a row of ventilation grooves are respectively provided on the upper and lower sides of the purifier shell; the ventilation grooves are used to circulate air.

[0006] Preferably, the leak-proof sealing component includes: a closing baffle, a reset tension spring and an extrusion slope. There are two closing baffles in total, and the two closing baffles are slidably mounted on the upper and lower sliding mounting strips respectively; the two closing baffles are respectively attached to the upper and lower sides of the purifier shell; the two closing baffles are respectively provided with slot holes corresponding to the upper and lower rows of ventilation grooves; two reset tension springs are respectively fixedly mounted on the two closing baffles; and the ends of the reset tension springs on the two closing baffles are respectively connected to the inner side of the support plate on the same side; the sides of the two closing baffles are respectively provided with extrusion slopes; the two closing baffles are respectively used to close the two rows of ventilation grooves.

[0007] Preferably, the expansion pipe protection component includes: an expansion mounting ring, an expansion rubber tube and an air intake pipe, the expansion mounting ring is fixedly mounted on two support plates on the upper side; an expansion rubber tube is fixedly mounted on the expansion mounting ring; the expansion rubber tube is a hollow structure; the outer side of the expansion rubber tube is an elastic expandable structure; an air intake pipe is fixedly mounted on the bottom of the expansion rubber tube, and the air intake pipe is a hose; the air intake pipe passes through the expansion mounting ring; and a valve is provided on the air intake pipe.

[0008] Preferably, the purification mounting part also includes: an airbag sealing ring, a filter material and a sliding mounting strip, the airbag sealing ring is fixedly mounted on the outer ring of the purifier shell; the interior of the airbag sealing ring is a hollow structure; the filter material is provided in a row, and a row of filter materials are respectively fixedly mounted inside the purifier shell; a row of filter materials is connected head to tail; two sliding mounting strips are respectively fixedly mounted on the upper and lower sides of the purifier shell; the filter material is used to filter air.

[0009] Preferably, the anti-reverse flow component includes: a support frame and an anti-reverse flow diaphragm, the support frame is fixedly installed on the inner ring of the expansion rubber tube; a row of anti-reverse flow diaphragms are fixedly installed inside the support frame; the row of anti-reverse flow diaphragms are attached to each other; the anti-reverse flow diaphragm is an inverted V-shaped elastic film structure; the anti-reverse flow diaphragm is used to prevent dust backflow.

[0010] Preferably, the expansion protective pipe component also includes: a reinforcing steel wire ring and an expansion rubber sheet, a row of reinforcing steel wire rings are fixedly embedded on the inner side of the expansion rubber tube; three expansion rubber sheets are fixedly sleeved on the outer side of the expansion rubber tube; the expansion rubber sheet is a rubber anti-slip structure; the reinforcing steel wire ring is used to support the inner ring of the expansion rubber tube; the air intake pipe is used to control the internal air pressure of the expansion rubber tube; the expansion rubber tube is used to be sleeved on the exhaust pipe of the air conditioner.

[0011] Preferably, the opening control component includes: an extrusion control strip, a sliding frame and a limiting column, wherein two extrusion control strips are provided, and the ends of the two extrusion control strips are inclined structures; two sliding frames are fixedly installed on the purifier shell; extrusion control strips are slidably installed inside the two sliding frames respectively; the ends of the two extrusion control strips are respectively fitted on the two extrusion inclined surfaces; limiting columns are fixedly installed on the two extrusion control strips respectively; the limiting columns are located on the inner side of the sliding frame; the extrusion control strip is used to squeeze and push the closed baffle; and the four support plates are respectively higher than the sliding frames on the same side.

[0012] Preferably, the sampling component includes: a sampling bolt, a marking line, an extruded rubber pad and a sampling filter column, the sampling bolt is threadedly connected to the sampling tube; four marking lines are opened on the sampling bolt, and the marking lines correspond to the marking lines provided at the end of the sampling tube; the extruded rubber pad is fixedly sleeved on the sampling bolt; the extruded rubber pad is a soft rubber structure; the sampling filter column is fixedly installed on the end of the sampling bolt, and the middle section of the sampling filter column is a square column; the sampling filter column is located inside the sampling tube; the sampling filter column uses the surface exposed at the upper sampling slot to absorb dust and impurities; the four marking lines are painted in different colors.

[0013] Preferably, the inspection mounting part comprises: a sampling tube and an aircraft air conditioning duct cover plate, the sampling tube is fixedly plugged into the purifier shell; two sampling slots are symmetrically provided on the sampling tube; the sampling tube is slidably sleeved with an aircraft air conditioning duct cover plate; the aircraft air conditioning duct cover plate is used to be connected to the aircraft air conditioning duct by bolts; and a marking line is provided at the end of the sampling tube.

[0014] An air purification process:

[0015] 1) The exhaust air from the air conditioning duct passes through a row of anti-reverse diaphragms and then enters the expansion rubber cylinder;

[0016] 2) The exhaust air from the air conditioning duct entering the expansion rubber cylinder will be introduced into the ventilation slot above;

[0017] 3) The air introduced into the upper ventilation slot will be filtered and purified through the filter material, and then discharged from the ventilation slot at the bottom and then exported through the air conditioning duct.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] The present invention adopts an expansion protective tube piece, which has a structure that can be stretched after expansion, and can be easily contracted after being deflated, so that it is more portable and practical, and can be stretched to adapt to the air-conditioning duct, and can be adapted to fit at the bends and the like of the air-conditioning duct. The expansion protective tube piece can be fitted in the exhaust channel of the air-conditioning duct, so as to prevent the adhesion of the filter material from being reduced during long-term use, resulting in a large amount of dust and impurities adhering to the inside of the air-conditioning duct. The air-conditioning duct can be made tidier without the need for manual cleaning, and is more suitable for the characteristics of longer aircraft air-conditioning ducts and higher purification standards, so as to improve the cleanliness of the air-conditioning duct.

[0020] The leak-proof sealing parts can be used in conjunction with the opening control parts to automatically control the switch. When replacing the purification installation parts, it can prevent dust from leaking and polluting the air-conditioning exhaust duct. At the same time, when removing the aircraft air-conditioning duct cover, the leak-proof sealing parts can be automatically controlled to close the ventilation slot to prevent staff from forgetting. This can further reduce the spread of bacteria and dust when staff replace the purification installation parts, and is more practical.

[0021] By using the inspection mounting parts, independent sampling work can be carried out in conjunction with the sampling parts, so that the staff can know the internal dust conditions of the structure without removing the aircraft air-conditioning duct cover. The use surface of the sampling filter column can be rotated to adjust the use surface, which is convenient for multiple uses, reduces the cost of use, and is more flexible to use. Whether to replace the filter material is determined according to the amount of dust, thereby preventing the problem of inaccuracy caused by relying on the traditional method of regularly replacing the filter material. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0023] Figure 2 This is a schematic diagram of the bottom structure of the leakproof sealing member of the present invention;

[0024] Figure 3 A partial cross-sectional view of a purifier shell of the present invention;

[0025] Figure 4 This is a schematic diagram of the structure of the purification installation part of the present invention;

[0026] Figure 5 This is a cross-sectional view of the purification installation structure of the present invention;

[0027] Figure 6 It is a schematic diagram of the structure of the leakproof sealing member of the present invention;

[0028] Figure 7 For the present invention Figure 6 A magnified view of the structure of the middle B region;

[0029] Figure 8 This is a schematic diagram of the bottom structure of the expansion pipe protection member of the present invention;

[0030] Fig. 9 For the present invention Figure 5 A magnified view of the structure of the middle C region;

[0031] Fig.10 For the present invention Figure 3 A magnified view of the structure of the middle D region;

[0032] Fig.11 This is a schematic diagram of the structure of the inspection installation member of the present invention;

[0033] Fig.12 It is a schematic diagram of the sampling component structure of the present invention.

[0034] In the figure: 1. Purification installation part; 101. Purifier shell; 1011. Support plate; 1012. Ventilation groove; 102. Airbag sealing ring; 103. Filter material; 104. Sliding installation strip; 2. Leak-proof sealing part; 201. Closing baffle; 202. Reset spring; 203. Extrusion slope; 3. Opening control part; 301. Extrusion control strip; 3011. Sliding frame; 302. Limiting column; 4. Expansion protection pipe; 401. Expansion Mounting ring; 402, expansion rubber cylinder; 4021, air intake pipe; 403, reinforcement wire ring; 404, expansion rubber sheet; 5, anti-backflow part; 501, support frame; 502, anti-backflow diaphragm; 6, inspection mounting part; 601, sampling tube; 6011, sampling slot; 602, aircraft air conditioning duct cover; 7, sampling part; 701, sampling bolt; 7011, marking line; 702, extrusion rubber pad; 703, sampling filter column. DETAILED DESCRIPTION

[0035] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0036] Example: See Figure 1-Figure 12 As shown:

[0037] The present invention provides a technical solution: an air filter comprises a purification installation part 1, wherein leakproof sealing parts 2 are installed on both upper and lower sides of the purification installation part 1, and the two leakproof sealing parts 2 are respectively used to seal the upper and lower sides of the purification installation part 1; two opening control parts 3 are installed on the purification installation part 1, and the two opening control parts 3 are respectively used to fit and squeeze the two leakproof sealing parts 2; an expansion protective pipe part 4 is installed on the purification installation part 1, and the expansion protective pipe part 4 is used to fit the exhaust pipe of the air conditioner; an anti-backflow part 5 is installed on the expansion protective pipe part 4; the anti-backflow part 5 is used to prevent dust backflow; an inspection installation part 6 is installed on the purification installation part 1; a sampling part 7 is installed on the inspection installation part 6; the sampling part 7 is used to absorb dust; the purification installation part 1 comprises: a purifier shell 101, a support plate 1011 and a ventilation groove 1012, and two support plates 1011 are respectively fixedly installed on the upper and lower sides of the purifier shell 101; the purifier shell 101 is a hollow structure; a row of ventilation grooves 1012 are respectively provided on the upper and lower sides of the purifier shell 101; the ventilation grooves 1012 are used to circulate air.

[0038] Among them, the purification installation part 1 also includes: an airbag sealing ring 102, a filter material 103 and a sliding installation strip 104, the airbag sealing ring 102 is fixedly installed on the outer ring of the purifier shell 101; the interior of the airbag sealing ring 102 is a hollow structure; the filter material 103 is provided with a row, and a row of filter materials 103 are respectively fixedly installed inside the purifier shell 101; a row of filter materials 103 are connected head to tail; two sliding installation strips 104 are respectively fixedly installed on the upper and lower sides of the purifier shell 101; the filter material 103 is used to filter air; the leak-proof sealing part 2 includes: a closed baffle 201, a reset tension spring 202 and an extrusion inclined surface 203, a total of two closed baffles 201 are provided, and the two closed baffles 201 are respectively slidably installed on the upper and lower sliding installation strips 104; the two closed baffles 201 are respectively attached to the upper and lower sides of the purifier shell 101; the two closed baffles 201 are respectively provided with slots corresponding to the upper and lower rows of ventilation grooves 1012; the two closed baffles 201 are divided Two reset tension springs 202 are fixedly installed separately; and the ends of the reset tension springs 202 on the two closed baffles 201 are respectively connected to the inner side of the support plate 1011 on the same side; the sides of the two closed baffles 201 are respectively provided with extrusion inclined surfaces 203; the two closed baffles 201 are respectively used to close the two rows of ventilation grooves 1012; the opening control member 3 includes: an extrusion control strip 301, a sliding frame 3011 and a limiting column 302, the extrusion control strip 301 is provided with two, and the ends of the two extrusion control strips 301 are inclined surface structures; two sliding frames 3011 are fixedly installed on the purifier shell 101; the extrusion control strips 301 are respectively slidably installed inside the two sliding frames 3011; the ends of the two extrusion control strips 301 are respectively attached to the two extrusion inclined surfaces 203; the limiting columns 302 are respectively fixedly installed on the two extrusion control strips 301; the limiting columns 302 are located on the inner side of the sliding frame 3011; the extrusion control strip 301 is used to squeeze and push the closed baffle 201;The four support plates 1011 are respectively higher than the sliding frame 3011 on the same side, and adopt a leak-proof sealing member 2, which can cooperate with the opening control member 3 to automatically control the switch. When replacing the purification installation member 1, it can prevent dust from leaking and polluting the air conditioning exhaust duct. At the same time, when disassembling the inspection installation member 6, the leak-proof sealing member 2 can be automatically controlled to close the ventilation groove 1012 to prevent the staff from forgetting, which can further reduce the spread of bacteria and dust when the staff replaces the purification installation member 1. It is more practical. After the aircraft air-conditioning duct cover plate 602 is connected to the air-conditioning duct by bolts, when replacing the purification installation member 1, the bolts between the aircraft air-conditioning duct cover plate 602 and the air-conditioning duct are removed, and the aircraft air-conditioning duct cover plate is removed at this time. 602, after the extrusion control strip 301 loses the extrusion of the aircraft air conditioning duct cover plate 602, under the pull of the reset tension spring 202, the extrusion inclined surface 203 is no longer squeezed by the extrusion control strip 301, and the closing baffle 201 can be pulled to close the ventilation groove 1012. At this time, the worker can take out the purifier shell 101 normally. The limiting column 302 plays the role of fitting and stopping on the side of the sliding frame 3011, limiting the extrusion control strip 301, and the four support plates 1011 are respectively higher than the sliding frame 3011 on the same side. After the two support plates 1011 at the bottom are placed in the filter slot reserved for the air conditioning duct, the bottom surface of the filter slot reserved for the air conditioning duct can be prevented from affecting the normal sliding and extension of the limiting extrusion control strip 301. ;

[0039] The expansion protection pipe member 4 includes: an expansion mounting ring 401, an expansion rubber tube 402 and an air intake pipe 4021. The expansion mounting ring 401 is fixedly mounted on the two support plates 1011 on the upper side; the expansion mounting ring 401 is fixedly mounted with an expansion rubber tube 402; the expansion rubber tube 402 is a hollow structure; the outer side of the expansion rubber tube 402 is an elastic expandable structure; the bottom of the expansion rubber tube 402 is fixedly mounted with an air intake pipe 4021, and the air intake pipe 4021 is a hose; the air intake pipe 4021 passes through the expansion mounting ring 401; the air intake pipe 4021 is provided with a valve; the expansion protection pipe member 4 also includes: A reinforced wire ring 403 and an expansion rubber sheet 404 are provided, and a row of reinforced wire rings 403 are fixedly embedded in the inner side of the expansion rubber tube 402; three expansion rubber sheets 404 are fixedly sleeved on the outer side of the expansion rubber tube 402; the expansion rubber sheet 404 is a rubber anti-slip structure; the reinforced wire ring 403 is used to support the inner ring of the expansion rubber tube 402; the air intake pipe 4021 is used to control the internal air pressure of the expansion rubber tube 402; the expansion rubber tube 402 is used to be sleeved on the exhaust pipe of the air conditioner; the anti-backflow component 5 includes: a support frame 501 and an anti-backflow diaphragm 502, the support frame 501 is fixedly installed on the inner ring of the expansion rubber tube 402; ... A row of anti-reflection membranes 502 are fixedly installed inside the support frame 501; the row of anti-reflection membranes 502 are attached to each other; the anti-reflection membrane 502 is an inverted V-shaped elastic film structure; the anti-reflection membrane 502 is used to prevent dust backflow, and adopts an expansion protective pipe member 4. The structure that can be stretched after expansion can facilitate contraction after deflation, and can be stretched to adapt to the air-conditioning duct, and can be adapted to fit at the bends of the air-conditioning duct. The expansion protective pipe member 4 can be attached to the exhaust channel of the air-conditioning duct, which can prevent the adhesion of the filter material 103 from being reduced during long-term use, resulting in a large amount of dust and impurities adhering to the inside of the air-conditioning duct. The air-conditioning duct is more tidy, and no manual cleaning work is required again. It is also more suitable for the characteristics of long aircraft air-conditioning ducts. The anti-backflow component 5 can be used to prevent dust backflow through the anti-backflow diaphragm 502, further reduce the diffusion of dust inside the filter material 103 and the expansion rubber tube 402, and improve the dust collection effect. The elastic V-shaped structure of the anti-backflow diaphragm 502 can be used without affecting the downward flow of air from the top of the anti-backflow diaphragm 502. During circulation, the anti-backflow diaphragm 502 can elastically shrink inward under the action of airflow, but air dust is not easy to backflow from bottom to top. When air backflows, the anti-backflow diaphragm 502 expands outward under the action of airflow and closes to each other, which plays a role of flow limiting. The structure is mature and reliable. After inflation, the expansion rubber tube 402 stretches and expands, and extends into the interior of the air-conditioning duct. At the same time, the outer side of the expansion rubber tube 402 also expands to fit the inner wall of the air-conditioning duct; the expansion rubber sheet 404 can fit the inner wall of the air-conditioning duct after the expansion rubber tube 402 expands, and uses the rubber material to play a role of anti-slip and stability.

[0040] Among them, the inspection installation part 6 includes: a sampling tube 601 and an aircraft air-conditioning duct cover 602, the sampling tube 601 is fixedly plugged into the purifier shell 101; two sampling slots 6011 are symmetrically provided on the sampling tube 601; the aircraft air-conditioning duct cover 602 is slidably sleeved on the sampling tube 601; the aircraft air-conditioning duct cover 602 is used to be connected to the aircraft air-conditioning duct by bolts; a marking line is provided at the end of the sampling tube 601; the sampling part 7 includes: a sampling bolt 701, a marking line 7011, an extruded rubber pad 702 and a sampling filter column 703, and the four marking lines 7011 are painted in different colors; the sampling bolt 701 is threadedly connected to the sampling tube 601; four marking lines 7011 are provided on the sampling bolt 701, and the marking lines 7011 correspond to the marking lines provided at the end of the sampling tube 601; the extruded rubber pad 702 is fixedly sleeved on the sampling bolt 701; the extruded rubber pad 702 is a rubber soft structure; the sampling filter column 703 is fixedly installed at the end of the sampling bolt 701, and the middle section of the sampling filter column 703 is a square column; the sampling filter column 703 is located inside the sampling tube 601; the sampling filter column 703 uses the surface exposed at the upper sampling slot 6011 to absorb dust and impurities, and adopts the inspection mounting part 6, which can cooperate with the sampling part 7 to perform independent sampling work, so that the staff can know the internal dust situation of the structure without removing the aircraft air-conditioning duct cover 602, which is more practical, and can be flexibly disassembled and observed by using the sampling part 7. At the same time, the rotatable sampling part 7 is adopted, and the use surface of the sampling filter column 703 can be rotated to adjust, which is convenient for multiple use, reduces the use cost, and is more flexible to use, and can prevent the filter material 103 from reaching the service life prematurely during use without being discovered.

[0041] An air purification process:

[0042] 1) The exhaust air from the air conditioning duct passes through a row of anti-reverse diaphragms 502 and enters the expansion rubber cylinder 402;

[0043] 2) The exhaust air of the air conditioning duct entering the expansion rubber cylinder 402 is introduced into the upper ventilation groove 1012;

[0044] 3) The air introduced into the upper ventilation groove 1012 will be filtered and purified by the filter material 103, and then discharged from the bottom ventilation groove 1012 and then exported through the air conditioning duct.

[0045] The working principle of this embodiment is as follows: first, the expansion rubber cylinder 402 and the support frame 501 are placed inside the air conditioning duct. At this time, the air intake pipe 4021 is connected to the air pump for inflation. After the expansion rubber cylinder 402 is inflated, it expands and extends into the air conditioning duct. At the same time, the outside of the expansion rubber cylinder 402 also expands and fits the inner wall of the air conditioning duct. The valve on the air intake pipe 4021 is closed, and the exhaust air of the air conditioning duct will flow from the inside of the expansion rubber cylinder 402 to the filter material 103 for purification. Then the purification mounting part 1 is completely inserted into the filter reserved slot in the air conditioning duct, and the aircraft is The air conditioning duct cover 602 is connected to the air conditioning duct by bolts, and the airbag sealing ring 102 can fit the aircraft air conditioning duct cover 602 and the inner side of the air conditioning duct to seal. The elastic V-shaped structure of the anti-reverse diaphragm 502 can not affect the downward flow of air from the top of the anti-reverse diaphragm 502. When the air flows, the anti-reverse diaphragm 502 can be elastically contracted inwardly under the action of the airflow, but the air dust is not easy to flow back from the bottom to the top. When the air flows back, the anti-reverse diaphragm 502 expands outward under the action of the airflow and closes with each other, ensuring the purification quality. When the aircraft air conditioning duct cover plate 602 is used, the aircraft air conditioning duct cover plate 602 squeezes the squeezing control strip 301 set, and the squeezing inclined surface 203 set by squeezing the squeezing control strip 301 is used. At this time, the closed baffle plate 201 slides on the sliding mounting strip 104, and the slots on the closed baffle plate 201 are aligned with the ventilation grooves 1012 to achieve conduction, ensuring smooth purification. After the exhaust air of the air conditioning duct passes through a row of anti-reverse diaphragms 502, it is introduced into the row of ventilation grooves 1012 above, filtered and purified by the filter material 103, and discharged from the row of ventilation grooves 1012 at the bottom. The air is led out through the air conditioning duct. When replacing the purification installation part 1, the bolts between the aircraft air conditioning duct cover plate 602 and the air conditioning duct are removed. At this time, the aircraft air conditioning duct cover plate 602 is removed. After the extrusion control strip 301 loses the extrusion of the aircraft air conditioning duct cover plate 602, under the pull of the reset tension spring 202, the extrusion inclined surface 203 is no longer squeezed by the extrusion control strip 301, and the closing baffle 201 can be pulled to close the ventilation groove 1012. At this time, the worker can take out the purifier shell 101 normally, and dust leakage will not be caused during transportation.

[0046] When it is necessary to understand the dust situation inside the structure, rotate and disassemble the sampling bolt 701, pull out the sampling filter column 703, and observe the amount of dust attached to the surface. The dust will adhere to the upper surface of the sampling filter column 703 corresponding to the upper sampling slot 6011. At the same time, when reinserting the sampling filter column 703, rotate the sampling bolt 701, and use the elastic structure of the extruded rubber pad 702. The rotating sampling bolt 701 can adjust the surface of the sampling filter column 703 corresponding to the upper sampling slot 6011. The marking lines of different color marking lines 7011 corresponding to the end of the sampling tube 601 can be observed to distinguish the use surface of the sampling filter column 703; it is convenient for the sampling filter column 703 to be used multiple times. Through the elastic structure of the extruded rubber pad 702, it can be elastically fitted between the sampling tube 601 and the inner side of the sampling bolt 701 for sealing and adaptation, and the operation is convenient.

[0047] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0048] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An air filter, comprising a purification installation member (1), wherein the purification installation member (1) is provided with leakproof sealing members (2) on both upper and lower sides, characterized in that: The two leak-proof sealing members (2) are respectively used to seal the upper and lower sides of the purification installation member (1); two opening control members (3) are installed on the purification installation member (1), and the two opening control members (3) are respectively used to fit and squeeze the two leak-proof sealing members (2); An expansion pipe protection member (4) is installed on the purification installation member (1), and the expansion pipe protection member (4) is used to fit the exhaust pipe of the air conditioner; The expansion protection tube member (4) is provided with an anti-backflow member (5); the anti-backflow member (5) is used to prevent dust backflow; An inspection mounting part (6) is mounted on the purification mounting part (1); a sampling part (7) is mounted on the inspection mounting part (6); the sampling part (7) is used to absorb dust; The purification installation component (1) comprises: a purifier shell (101), a support plate (1011) and ventilation grooves (1012); two support plates (1011) are fixedly mounted on the upper and lower sides of the purifier shell (101); the purifier shell (101) is a hollow structure; a row of ventilation grooves (1012) are respectively arranged on the upper and lower sides of the purifier shell (101); the ventilation grooves (1012) are used for circulating air; The purification installation component (1) further comprises: an airbag sealing ring (102), a filter material (103) and a sliding installation strip (104); the airbag sealing ring (102) is fixedly mounted on the outer ring of the purifier shell (101); the interior of the airbag sealing ring (102) is a hollow structure; the filter material (103) is provided in a row, and the row of filter materials (103) are respectively fixedly mounted inside the purifier shell (101); the row of filter materials (103) are connected head to tail; two sliding installation strips (104) are respectively fixedly mounted on the upper and lower sides of the purifier shell (101); the filter material (103) is used to filter air; The anti-leakage sealing member (2) comprises: a sealing baffle (201), a reset tension spring (202) and an extrusion inclined surface (203); the two sealing baffles (201) are provided with two in total, and the two sealing baffles (201) are respectively slidably mounted on the upper and lower sliding mounting strips (104); the two sealing baffles (201) are respectively attached to the upper and lower sides of the purifier shell (101); the two sealing baffles (201) are respectively provided with slot holes corresponding to the upper and lower rows of ventilation slots (1012); the two sealing baffles (201) are respectively fixedly mounted with two reset tension springs (2012); 2); and the ends of the reset tension springs (202) on the two closed baffles (201) are respectively connected to the inner side of the support plate (1011) on the same side; the sides of the two closed baffles (201) are respectively provided with extrusion inclined surfaces (203); the two closed baffles (201) are respectively used to close two rows of ventilation grooves (1012); the closed baffles (201) slide on the sliding mounting strip (104), and the slots on the closed baffles (201) are aligned with the ventilation grooves (1012) to achieve conduction; the reset tension spring (202) is used to pull the closed baffles (201) to close the ventilation grooves (1012); The opening control member (3) comprises: an extrusion control strip (301), a sliding frame (3011) and a limiting column (302); two extrusion control strips (301) are provided, and the ends of the two extrusion control strips (301) are inclined structures; two sliding frames (3011) are fixedly mounted on the purifier shell (101); extrusion control strips (301) are slidably mounted inside the two sliding frames (3011); the ends of the two extrusion control strips (301) are respectively fitted on two extrusion inclined surfaces (203); limiting columns (302) are fixedly mounted on the two extrusion control strips (301); the limiting columns (302) are located on the inner side of the sliding frame (3011); the extrusion control strip (301) is used to extrude and push the closed baffle (201); The inspection mounting member (6) comprises: a sampling tube (601) and an aircraft air conditioning duct cover plate (602); the sampling tube (601) is fixedly plugged into the purifier housing (101); two sampling slots (6011) are symmetrically provided on the sampling tube (601); the aircraft air conditioning duct cover plate (602) is slidably sleeved on the sampling tube (601); the aircraft air conditioning duct cover plate (602) is used to be connected to the aircraft air conditioning duct by bolts; a marking line is provided at the end of the sampling tube (601); the aircraft air conditioning duct cover plate (602) is fitted with an extrusion control strip (301), and an extrusion inclined surface (203) provided for extrusion of the extrusion control strip (301) is provided to seal the sampling tube (601); The baffle (201) slides on the sliding installation strip (104), and the slotted hole on the closed baffle (201) is aligned with the ventilation slot (1012) to achieve conduction. When replacing the purification installation component (1), the bolts between the aircraft air conditioning duct cover (602) and the air conditioning duct are removed, and the aircraft air conditioning duct cover (602) is removed. The extrusion control strip (301) loses the extrusion of the aircraft air conditioning duct cover (602). Under the pull of the reset tension spring (202), the extrusion inclined surface (203) is no longer squeezed by the extrusion control strip (301), and the closed baffle (201) is pulled to close the ventilation slot (1012); the two sampling slots (6011) are located inside the purifier shell (101); The sampling member (7) comprises: a sampling bolt (701), a marking line (7011), an extruded rubber pad (702) and a sampling filter cartridge column (703); the sampling bolt (701) is threadedly connected to the sampling tube (601); four marking lines (7011) are provided on the sampling bolt (701), and the marking lines (7011) correspond to the marking lines provided at the end of the sampling tube (601); the four marking lines (7011) are painted in different colors; the extruded rubber pad (702) is fixedly sleeved on the sampling bolt (701); the extruded rubber pad (702) is a rubber soft structure; the sampling filter cartridge column (703) is fixedly installed at the end of the sampling bolt (701), and the middle section of the sampling filter cartridge column (703) is a square column; the sampling filter cartridge column (703) is located inside the sampling tube (601); the sampling filter cartridge column (703) uses the surface exposed at the upper sampling slot (6011) to absorb dust and impurities.

2. An air filter according to claim 1, characterized in that: The expansion pipe protection member (4) comprises: an expansion mounting ring (401), an expansion rubber tube (402) and an air intake pipe (4021); the expansion mounting ring (401) is fixedly mounted on two support plates (1011) on the upper side; the expansion rubber tube (402) is fixedly mounted on the expansion mounting ring (401); the expansion rubber tube (402) is a hollow structure; the outer side of the expansion rubber tube (402) is an elastic expandable structure; the bottom of the expansion rubber tube (402) is fixedly mounted with an air intake pipe (4021), and the air intake pipe (4021) is a hose; the air intake pipe (4021) passes through the expansion mounting ring (401); and a valve is provided on the air intake pipe (4021).

3. An air filter according to claim 2, characterized in that: The expansion pipe protection member (4) further comprises: a reinforcing wire ring (403) and an expansion rubber sheet (404); a row of reinforcing wire rings (403) are fixedly embedded inside the expansion rubber tube (402); three expansion rubber sheets (404) are fixedly sleeved on the outside of the expansion rubber tube (402); the expansion rubber sheet (404) is a rubber anti-slip structure; the reinforcing wire ring (403) is used to support the inner ring of the expansion rubber tube (402); the air intake pipe (4021) is used to control the internal air pressure of the expansion rubber tube (402); and the expansion rubber tube (402) is used to be sleeved on the exhaust pipe of the air conditioner.

4. An air filter according to claim 2, characterized in that: The anti-reverse flow component (5) comprises: a support frame (501) and an anti-reverse flow diaphragm (502); the support frame (501) is fixedly mounted on the inner ring of the expansion rubber tube (402); a row of anti-reverse flow diaphragms (502) are fixedly mounted inside the support frame (501); the row of anti-reverse flow diaphragms (502) are in contact with each other; the anti-reverse flow diaphragms (502) are inverted V-shaped elastic film structures; the anti-reverse flow diaphragms (502) are used to prevent dust from flowing back.

5. An air purification process using an air filter as claimed in claim 4, characterized in that: The steps include: 1) The exhaust air from the air conditioning duct passes through a row of anti-reverse diaphragms (502) and then enters the expansion rubber cylinder (402); 2) The exhaust air of the air conditioning duct entering the expansion rubber cylinder (402) is introduced into the upper ventilation groove (1012); 3) The air introduced into the upper ventilation groove (1012) is filtered and purified by the filter material (103), and then discharged from the bottom ventilation groove (1012) and then exported through the air conditioning duct.

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