Fresh air filter easy to replace and wash

Abstract

The invention relates to the technical field of filter equipment, and particularly discloses a fresh air filter easy to replace and wash, the fresh air filter easy to replace and wash comprises a main box body, an auxiliary box body and a fresh air filtering mechanism, one end face of the main box body is provided with a fresh air inlet pipe and a waste gas outlet pipe, and the other end face of the main box body is provided with a fresh air outlet pipe and a waste gas inlet pipe; the fresh air filtering mechanism is installed in the main box body and used for exchanging indoor air and outdoor air. The auxiliary box body is installed between the main box body and the waste gas inlet pipe, and a stand column is vertically connected into the auxiliary box body; the circumferential surface of the stand column is rotationally connected with two partition plates with the end faces aligned, the partition plates divide the auxiliary box body into a waste gas chamber and a smoke chamber, and the waste gas chamber and the waste gas inlet pipe are located on the same path and communicate with the main box body; a smoke dust treatment mechanism for treating smoke dust and flames is mounted in the smoke dust chamber; a driving mechanism used for driving the two partition plates to rotate around the stand columns is installed on the main box body. The filter has the effect of improving the use safety of the filter.

Description

Technical Field

[0001] The invention relates to the technical field of filter equipment, and in particular to an easily replaceable and washable fresh air filter. Background Art

[0002] The fresh air filter is the core component of the fresh air system. It is mainly used to purify the air introduced from the outside to ensure that the air delivered into the room is clean and healthy; and also to discharge the dirty air in the room to the outside.

[0003] In the related technology, the filter generates negative pressure through the fan to allow the outside air to enter the filter. The air is filtered step by step and then discharged to the room after heat exchange through the full heat exchange core. The filter then uses another fan to discharge the dirty air in the room to the outside after heat exchange through the full heat exchange core, thus achieving air replacement. When the filter is used under extreme conditions, such as a fire in the room, the most fatal thing about indoor fires is the large amount of smoke and dust produced. If these smoke and dust are discharged to the outside in time, the probability of survival of the people in the room will be increased. During the use of the filter, the filter can draw the indoor air to the outside through the pipe network. However, in the event of a fire, the smoke and dust produced are often accompanied by flames. These flames will enter the filter through the pipe network. These flames can easily ignite the components in the filter. The filter net in the filter has poor flame retardancy, which can easily cause a fire in the filter, which is not safe enough. Summary of the invention

[0004] In order to improve the safety of filter use, the present application provides an easy-to-replace and wash fresh air filter.

[0005] The easy-to-replace fresh air filter provided in this application adopts the following technical solution: A fresh air filter that is easy to replace and wash, comprises a main box body, a sub-box body and a fresh air filtering mechanism, wherein a fresh air inlet pipe and an exhaust gas outlet pipe are installed on one end face of the main box body, and a fresh air outlet pipe and an exhaust gas inlet pipe are installed on the other end face of the main box body; the fresh air filtering mechanism is installed in the main box body, and the fresh air filtering mechanism is used for exchanging indoor and outdoor air; the sub-box body is installed between the main box body and the exhaust gas inlet pipe, and a column is vertically connected in the sub-box body; the circumferential surface of the column is rotatably connected to a partition with two end faces aligned, and the partition divides the sub-box body into an exhaust gas chamber and a smoke chamber, and the exhaust gas chamber and the exhaust gas inlet pipe are on the same path and connected to the main box body; a smoke treatment mechanism for treating smoke and flames is installed in the smoke chamber; a driving mechanism for driving the two partitions to rotate around the column is installed on the main box body.

[0006] Optionally, the smoke treatment mechanism includes an inner semicircular plate, an outer semicircular plate, a metal filter and porous heat-insulating flame-retardant bricks; the outer circumferential surface of the inner semicircular plate and the inner circumferential surface of the outer semicircular plate are connected to two vertically arranged first guide strips, one side of the metal filter is inserted between the two first guide strips of the inner semicircular plate, and the other side of the metal filter is inserted between the two first guide strips of the outer semicircular plate; the outer circumferential surface of the inner semicircular plate and the inner circumferential surface of the outer semicircular plate are connected to two vertically arranged second guide strips, one side of the porous heat-insulating flame-retardant brick is inserted between the two second guide strips of the inner semicircular plate, and the other side of the porous heat-insulating flame-retardant brick is inserted between the two second guide strips of the outer semicircular plate, and the porous heat-insulating flame-retardant brick is located on the side of the metal filter away from the exhaust gas intake pipe.

[0007] Optionally, the sides of the two partitions close to the inner semicircular plate are respectively connected to one end of the first semicircular plate and one end of the second semicircular plate; the outer side of the first semicircular plate is attached to the inner side of the inner semicircular plate, and the outer side of the second semicircular plate is attached to the inner side of the first semicircular plate.

[0008] Optionally, a lifting plate is installed on the top of the metal filter, and both ends of the bottom surface of the lifting plate are connected to a first guide plate, the first guide plate is located on the side of the metal filter away from the porous heat-insulating flame-retardant bricks, and the first guide plate is attached to the side of the first guide bar away from the metal filter; a metal mesh brush is provided on the side of the metal filter close to the first guide plate, and the metal mesh brush is used to clean the mesh surface of the metal filter; sliding blocks are connected to both ends of the metal mesh brush, and guide grooves for sliding of two sliding blocks are provided in the two first guide plates; a lifting mechanism for driving the metal mesh brush to move up and down is installed on the metal filter.

[0009] Optionally, the lifting mechanism includes a lightweight metal rotating plate, a first traction rope, a second traction rope, a first guide wheel, a second guide wheel, a winding disk and a counterweight; the second guide plates are connected at both ends of the bottom surface of the lifting plate, and the second guide plate is located on one side of the metal mesh brush; the two ends of one side of the rotating plate are rotatably connected between the two second guide plates; the first guide wheel is rotatably connected to the bottom end of the second guide plate, and the second guide wheel is rotatably connected to the top surface of the lifting plate; the winding disk is rotatably connected to the top surface of the lifting plate, and the winding disk is provided with an annular first winding groove and an annular second winding groove, and the diameter of the first winding groove is smaller than the diameter of the second winding groove; one end of the first traction rope is connected to the bottom edge of the rotating plate, and the other end of the first traction rope is connected to the inner wall of the first winding groove, the first traction rope passes around the bottom surface of the first guide wheel, and the first traction rope passes around between each pair of two second guide wheels; one end of the second traction rope is connected to the top surface of the metal mesh brush, and the other end of the second traction rope is connected to the inner wall of the second winding groove; the counterweight is connected to the side of the metal mesh brush.

[0010] Optionally, an ash discharge port is provided on the bottom surface of the auxiliary box body, and the ash discharge port is located below the metal mesh brush. The inner wall of the ash discharge port is connected to a first guide plate and a second guide plate. The first guide plate is located below the first guide plate, and the second guide plate is located on the side of the first guide plate away from the metal filter. The top end of the second guide plate extends out of the bottom surface of the main box body and bends toward the metal filter, and the bottom edge of the first guide plate is inclined toward the second guide plate.

[0011] Optionally, the driving mechanism includes a driving motor, a screw, a transmission plate, a push-pull plate and a pushing plate; two pushing plates are provided, the two pushing plates are respectively connected to the sides of the two partitions close to the exhaust gas chamber and are symmetrically arranged about the column, and a waist-shaped hole is provided in the pushing plate; the driving motor is installed on the top surface of the auxiliary box body, the output shaft of the driving motor faces the side away from the pushing plate, the end of the screw is connected to the output shaft of the driving motor, the transmission plate is sleeved on the circumference of the screw, the transmission plate is located on the side of the auxiliary box body, and two push-pull plates are provided, the two push-pull plates are respectively connected to the two ends of the side of the transmission plate close to the partition, the ends of the two push-pull plates extend into the exhaust gas chamber and extend to the bottom surfaces of the two push plates respectively, and the top surfaces of the ends of the push-pull plates are connected with positioning pins for extending into the waist-shaped holes.

[0012] Optionally, a first access opening is installed on the top surface of the auxiliary box body, the first access opening is connected to the smoke chamber, the first access opening is aligned with the lifting plate, a handle is connected to the top surface of the lifting plate, and a first cover plate is installed on the top surface of the first access opening.

[0013] Optionally, an opening is provided on the top surface of the auxiliary box body, the opening is aligned with the porous heat-insulating flame-retardant brick, a second cover plate is provided in the opening, and a grip for carrying is provided on the top surface of the porous heat-insulating flame-retardant brick.

[0014] Optionally, a first partition plate is provided on the inner wall of the main box body, the first partition plate divides the main box body into a filter chamber and a fan chamber, and the fan chamber is connected to the fresh air inlet duct and the exhaust air inlet duct; a second partition plate is provided on the inner wall of the fan chamber, the second partition plate divides the fan chamber into a first chamber and a second chamber; the first chamber is connected to the exhaust air outlet duct, and the second chamber is connected to the fresh air inlet duct; the fresh air filtering mechanism includes a first fan, a second fan, a full heat exchange core and a filter assembly; the first fan is installed in the first chamber, and the first fan is connected to the exhaust air outlet duct; the second fan is installed in the second chamber, and the second fan is connected to the fresh air outlet duct; the full heat exchange core is installed in the filter chamber, and the top and bottom surfaces of the full heat exchange core are attached The filter assembly is installed in the lower part of the second baffle plate and faces the fresh air inlet pipe.

[0015] In summary, the present application includes at least one of the following beneficial technical effects: 1. When the filter is in normal use, the indoor exhaust gas is sucked into the exhaust gas inlet pipe under negative pressure, and then flows into the main box through the exhaust gas chamber, and the fresh air filter mechanism discharges the exhaust gas to the outside through the exhaust gas outlet pipe; when a fire occurs, the driving mechanism drives the two partitions to rotate toward the exhaust gas chamber, so that the ends of the two partitions are pressed against the inner wall of the exhaust gas chamber, and the partition blocks the exhaust gas chamber, so that the smoke chamber is connected with the main box and the exhaust gas inlet pipe. The main box generates negative pressure under the action of the fresh air filter mechanism, and the indoor smoke is sucked into the exhaust gas inlet pipe, and then the smoke enters the smoke chamber. The smoke treatment mechanism treats the smoke and flames, and the treated exhaust gas is discharged into the main box again, so that the treated smoke is not easy to block the filter screen in the fresh air filter mechanism, and is not easy to ignite the components in the fresh air filter mechanism, which plays a flame retardant role, thereby improving the safety of the filter. 2. When smoke enters the smoke chamber, the metal filter blocks the particles in the smoke, filters the smoke and blocks the flames in the smoke. The smoke after passing through the metal filter passes through the porous heat-insulating flame-retardant bricks, which block the heat and flames in the smoke, further reducing the possibility of smoke and flames entering the main box, thereby protecting the filter; 3. After the metal filter screen filters the smoke for many times, a lot of smoke is accumulated on the metal filter screen, blocking the metal filter screen and affecting the exhaust of smoke from the metal filter screen. The metal mesh brush is driven up and down by the driving mechanism, and the metal mesh brush cleans the smoke accumulated on the surface of the metal filter screen, so that the metal filter screen remains unobstructed during the continuous filtering of smoke. 4. When the metal filter and its related parts need to be cleaned, open the first cover plate, lift the lifting plate upwards by the handle, and the lifting plate pulls the metal filter out of the auxiliary box body for easy replacement and cleaning; 5. When the porous heat-insulating flame-retardant bricks need to be replaced and cleaned, open the second cover plate, lift the porous heat-insulating flame-retardant bricks out of the auxiliary box through the gripping opening, and then clean them. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of the filter of the embodiment of the present application; Figure 2 It is a schematic diagram of the exploded structure of the filter of the embodiment of the present application; Figure 3 yes Figure 2 A schematic diagram of the enlarged structure of part A; Figure 4 It is a schematic diagram of the internal structure of the auxiliary box body of the embodiment of the present application; Figure 5 It is a schematic diagram of the structure of the metal filter screen of the embodiment of the present application; Figure 6 yes Figure 5 A schematic diagram of the enlarged structure of part B; Figure 7 is a schematic structural diagram of the metal filter screen of the embodiment of the present application from another viewing angle; Figure 8 yes Figure 7 A schematic diagram of the enlarged structure of the middle C part; Fig. 9 It is a schematic diagram of the internal structure of the main box of the embodiment of the present application; Fig.10 It is a schematic diagram of the airflow structure of the full heat exchange core of the embodiment of the present application; Fig.11 It is a partial structural schematic diagram of the main box body of the embodiment of the present application.

[0017] Description of reference numerals: 1. Main box; 101. Filter chamber; 102. Fan chamber; 103. First chamber; 104. Second chamber; 105. First mounting port; 106. Second mounting port; 11. Fresh air inlet pipe; 12. Exhaust air outlet pipe; 13. Fresh air outlet pipe; 14. Exhaust air inlet pipe; 15. First partition plate; 151. First notch; 152. Second notch; 16. Second partition plate; 17. First blocking plate; 18. Second blocking plate; 19. First door plate; 110. First a pressing block; 111, second door plate; 112, second pressing block; 2, auxiliary box; 201, exhaust chamber; 202, smoke chamber; 21, column; 211, partition; 212, first semi-circular plate; 213, second semi-circular plate; 22, first access opening; 221, first cover plate; 23, second cover plate; 24, ash discharge opening; 25, first guide plate; 26, second guide plate; 3, fresh air filtering mechanism; 31, first fan; 32, second fan; 33, all Heat exchange core; 34, filter assembly; 341, primary filter; 342, medium filter; 343, high efficiency filter; 344, track; 4, drive mechanism; 41, drive motor; 42, screw; 43, transmission plate; 44, push-pull plate; 441, positioning pin; 45, push plate; 451, waist-shaped hole; 5, smoke treatment mechanism; 51, inner semicircular plate; 511, first guide strip; 512, second guide strip; 52, outer semicircular plate; 53, metal filter; 54, Porous heat-insulating flame-retardant bricks; 541, grip; 6, lifting plate; 61, first guide plate; 611, guide groove; 62, metal mesh brush; 621, sliding block; 63, lifting mechanism; 631, rotating plate; 632, first traction rope; 633, second traction rope; 634, first guide wheel; 635, second guide wheel; 636, winding disk; 6361, first winding groove; 6362, second winding groove; 636, counterweight block; 64, second guide plate; 65, handle. DETAILED DESCRIPTION

[0018] The following is combined with Figure 1-11 This application is described in further detail.

[0019] The present application embodiment discloses an easily replaceable fresh air filter. Figure 1-11The filter includes a main box body 1, a sub-box body 2 and a fresh air filter mechanism 3. A fresh air inlet pipe 11 and an exhaust gas outlet pipe 12 are installed on one end face of the main box body 1, and a fresh air outlet pipe 13 and an exhaust gas inlet pipe 14 are installed on the other end face of the main box body 1; the fresh air filter mechanism 3 is installed in the main box body 1, and the fresh air filter mechanism 3 is used to exchange indoor and outdoor air; the sub-box body 2 is installed between the main box body 1 and the exhaust gas inlet pipe 14, and a column 2 is vertically connected in the sub-box body 2 1; the column 21 is rotatably connected to two partitions 211 with their end faces aligned, the partition 211 divides the auxiliary box 2 into an exhaust gas chamber 201 and a smoke chamber 202, the exhaust gas chamber 201 and the exhaust gas inlet pipe 14 are on the same path and connected to the main box 1; a smoke treatment mechanism 5 for treating smoke and flames is installed in the smoke chamber 202; a driving mechanism 4 for driving the two partitions 211 to rotate around the column 21 is installed on the main box 1.

[0020] When the filter is in normal use, the indoor exhaust gas is sucked into the exhaust gas inlet pipe 14 under negative pressure, and then flows into the main box body 1 through the exhaust gas chamber 201. The fresh air filtering mechanism 3 discharges the exhaust gas to the outside through the exhaust gas outlet pipe 12. When a fire occurs, the driving mechanism 4 drives the two partitions 211 to rotate toward the exhaust gas chamber 201, so that the ends of the two partitions 211 are pressed against the inner wall of the exhaust gas chamber 201, and the partition 211 blocks the exhaust gas chamber 201, so that the smoke chamber 202 and the main box body 1 are separated. It is connected to the exhaust gas inlet pipe 14, and the main box body 1 generates negative pressure under the action of the fresh air filtering mechanism 3, sucking the indoor smoke into the exhaust gas inlet pipe 14, and then the smoke enters the smoke chamber 202. The smoke treatment mechanism 5 treats the smoke and flames, and the treated exhaust gas is then discharged into the main box body 1, so that the treated smoke is not easy to block the filter screen in the fresh air filtering mechanism 3, and is not easy to ignite the components in the fresh air filtering mechanism 3, which plays a flame retardant role, thereby improving the safety of the filter use.

[0021] The smoke treatment mechanism 5 includes an inner semicircular plate 51, an outer semicircular plate 52, a metal filter 53 and a porous heat-insulating flame-retardant brick 54; the outer circumferential surface of the inner semicircular plate 51 and the inner circumferential surface of the outer semicircular plate 52 are connected to two vertically arranged first guide strips 511, one side of the metal filter 53 is inserted between the two first guide strips 511 of the inner semicircular plate 51, and the other side of the metal filter 53 is inserted between the two first guide strips 511 of the outer semicircular plate 52; the outer circumferential surface of the inner semicircular plate 51 and the inner circumferential surface of the outer semicircular plate 52 are connected to two vertically arranged second guide strips 512, one side of the porous heat-insulating flame-retardant brick 54 is inserted between the two second guide strips 512 of the inner semicircular plate 51, and the other side of the porous heat-insulating flame-retardant brick 54 is inserted between the two second guide strips 512 of the outer semicircular plate 52, and the porous heat-insulating flame-retardant brick 54 is located on the side of the metal filter 53 away from the exhaust gas intake pipe 14.

[0022] When the smoke enters the smoke chamber 202, the metal filter 53 blocks the fine particles in the smoke, filters the smoke and blocks the flames in the smoke, and the smoke after passing through the metal filter 53 passes through the porous heat-insulating flame-retardant bricks 54. The porous heat-insulating flame-retardant bricks 54 block the heat and flames in the smoke, further reducing the possibility of smoke and flames entering the main box body 1, thereby protecting the filter.

[0023] The sides of the two partitions 211 close to the inner semicircular plate 51 are respectively connected to one end of the first semicircular plate 212 and one end of the second semicircular plate 213; the outer side of the first semicircular plate 212 is attached to the inner side of the inner semicircular plate 51, and the outer side of the second semicircular plate 213 is attached to the inner side of the first semicircular plate 212.

[0024] When the partition 211 rotates, the first semicircular plate 212 and the second semicircular plate 213 rotate out from the inner side of the inner semicircular plate 51 to compensate for the gaps at both ends of the inner semicircular plate 51 and prevent smoke from flowing between the inner semicircular plate 51 and the partition 211 .

[0025] A lifting plate 6 is installed on the top of the metal filter 53, and the two ends of the bottom surface of the lifting plate 6 are connected to the first guide plates 61, the first guide plate 61 is located on the side of the metal filter 53 away from the porous heat-insulating flame-retardant bricks 54, and the first guide plate 61 is attached to the side of the first guide bar 511 away from the metal filter 53; a metal mesh brush 62 is arranged on the side of the metal filter 53 close to the first guide plate 61, and the metal mesh brush 62 is used to clean the mesh surface of the metal filter 53; sliding blocks 621 are connected to the two ends of the metal mesh brush 62, and the two first guide plates 61 are provided with guide grooves 611 for the two sliding blocks 621 to slide; a lifting mechanism 63 for driving the metal mesh brush 62 to move up and down is installed on the metal filter 53.

[0026] After the metal filter 53 has filtered the smoke for multiple times, a lot of smoke accumulates on the metal filter 53, blocking the metal filter 53 and affecting the exhaust of smoke from the metal filter 53; the metal mesh brush 62 is driven up and down by the driving mechanism 4, and the metal mesh brush 62 cleans the smoke accumulated on the surface of the metal filter 53, so that the metal filter 53 remains unobstructed during the continuous filtering of smoke.

[0027] The lifting mechanism 63 includes a light metal rotating plate 631, a first traction rope 632, a second traction rope 633, a first guide wheel 634, a second guide wheel 635, a winding disk 636 and a counterweight block 636; the two ends of the bottom surface of the lifting plate 6 are connected to the second guide plate 64, the second guide plate 64 is located on one side of the metal mesh brush 62, and the second guide plate 64 is attached to the side of the first guide bar 511 away from the metal filter 53; the two ends of one side of the rotating plate 631 are rotatably connected between the two second guide plates 64, and the rotating The plate 631 is located in the middle of the metal filter 53; there are two first guide wheels 634, which are respectively rotatably connected to the side of the bottom end of the second guide plate 64 away from the metal filter 53; there are two pairs of second guide wheels 635, which are respectively rotatably connected to the top surfaces of the two ends of the lifting plate 6, and each pair of second guide wheels 635 is arranged up and down; there are two winding disks 636, which are respectively rotatably connected to the two ends of the top surface of the lifting plate 6, and the winding disks 636 are respectively rotatably connected to the two ends of the top surface of the lifting plate 6. An annular first winding groove 6361 and an annular second winding groove 6362 are provided, and the diameter of the first winding groove 6361 is smaller than the diameter of the second winding groove 6362; two first traction ropes 632 are provided, one end of the two first traction ropes 632 are respectively connected to the two ends of the bottom edge of the rotating plate 631, and the other ends of the two first traction ropes 632 are respectively connected to the inner wall of the first winding groove 6361, and the first traction rope 632 is passed around the bottom surface of the first guide wheel 634, and the first traction rope 632 is passed from each pair of two The metal mesh brush 62 is wound around the second guide wheel 635; two second traction ropes 633 are arranged, one end of the two second traction ropes 633 are respectively connected to the two ends of the top surface of the metal mesh brush 62, and the other ends of the two second traction ropes 633 are respectively connected to the inner wall of the second winding groove 6362; the counterweight block 636 is connected to the side of the metal mesh brush 62; the diameter of the first winding groove 6361 of the winding disk 636 close to the outer semicircular plate 52 is larger than the diameter of the first winding groove 6361 of the winding disk 636 away from the outer semicircular plate 52.

[0028] When smoke passes through the metal filter 53, the airflow will blow the rotating plate 631, and the rotating plate 631 will rotate at a certain angle. The bottom edge of the rotating plate 631 drives the first traction rope 632, and the first traction rope 632 drives the winding disk 636 to rotate through the first guide wheel 634 and the second guide wheel 635. The winding disk 636 releases the first traction rope 632 in the first winding groove 6361, and the winding disk 636 winds the second traction rope 633 into the groove of the second winding disk 636. The second traction rope 633 drives the metal filter 53. The brush 62 rises to the lifting plate 6; when the metal filter 53 is blocked, the thrust on the rotating plate 631 is reduced, and the rotating plate 631 rotates downward. At this time, under the action of the counterweight block 636 of the metal mesh brush 62, the metal mesh brush 62 moves downward to clean the metal filter 53, and the second winding groove 6362 releases the second traction rope 633, and the first winding groove 6361 winds the first traction rope 632; when the metal filter 53 is unobstructed, the above operation is performed again to realize automatic cleaning of the metal filter 53.

[0029] An ash discharge port 24 is provided on the bottom surface of the auxiliary box body 2, and the ash discharge port 24 is located below the metal mesh brush 62. The inner wall of the ash discharge port 24 is connected with a first guide plate 25 and a second guide plate 26. The first guide plate 25 is located below the first guide plate 61, and the second guide plate 26 is located on the side of the first guide plate 25 away from the metal filter 53. The top end of the second guide plate 26 extends out of the bottom surface of the main box body 1 and bends toward the metal filter 53, and the bottom edge of the first guide plate 25 is inclined toward the second guide plate 26; after the metal mesh brush 62 brushes down the smoke and dust, the smoke and dust is discharged to the outside of the auxiliary box body 2 through the ash discharge port 24 under the action of the first guide plate 25 and the second guide plate 26.

[0030] The driving mechanism 4 includes a driving motor 41, a screw 42, a transmission plate 43, a push-pull plate 44 and a pushing plate 45; two pushing plates 45 are provided, and the two pushing plates 45 are respectively connected to the sides of the two partitions 211 close to the exhaust gas chamber 201 and are symmetrically arranged about the column 21, and a waist-shaped hole 451 is provided in the pushing plate 45; the driving motor 41 is installed on the top surface of the auxiliary box body 2, the output shaft of the driving motor 41 faces the side away from the pushing plate 45, the end of the screw 42 is connected to the output shaft of the driving motor 41, the transmission plate 43 is sleeved on the circumference of the screw 42, the transmission plate 43 is located on the side of the auxiliary box body 2, and two push-pull plates 44 are provided, the two push-pull plates 44 are respectively connected to the two ends of the side of the transmission plate 43 close to the partition 211, the ends of the two push-pull plates 44 extend into the exhaust gas chamber 201 and extend to the bottom surfaces of the two push plates 45 respectively, and the top surface of the end of the push-pull plate 44 is connected with a positioning pin 441 for extending into the waist-shaped hole 451.

[0031] When it is necessary to drive the partition 211 to rotate, the driving motor 41 drives the screw 42 to rotate, the screw 42 drives the transmission plate 43 to move, the transmission plate 43 drives the push-pull plate 44 to move, the push-pull plate 44 drives the push plate 45 to move through the positioning pin 441, and the push plate 45 drives the partition 211 to move; the partition 211 can be switched at will to realize the arbitrary switching of the exhaust gas chamber 201 or the smoke chamber 202 with the main box body 1 and the exhaust gas intake pipe 14.

[0032] A first access port 22 is installed on the top surface of the auxiliary box 2, and the first access port 22 is connected to the smoke chamber 202. The first access port 22 is aligned with the lifting plate 6, and a handle 65 is connected to the top surface of the lifting plate 6. A first cover plate 221 is installed on the top surface of the first access port 22; when the metal filter 53 and related components need to be cleaned, the first cover plate 221 is opened, and the lifting plate 6 is lifted upward by the handle 65. The lifting plate 6 pulls the metal filter 53 out of the auxiliary box 2 for easy replacement and cleaning.

[0033] An opening is provided on the top surface of the auxiliary box 2, and the opening is aligned with the porous heat-insulating flame-retardant brick 54. A second cover plate 23 is provided in the opening, and a grip 541 for carrying is provided on the top surface of the porous heat-insulating flame-retardant brick 54. When the porous heat-insulating flame-retardant brick 54 needs to be replaced and cleaned, the second cover plate 23 is opened, and the porous heat-insulating flame-retardant brick 54 is lifted out of the auxiliary box 2 through the grip 541 so that it can be cleaned.

[0034] A first partition plate 15 is provided on the inner wall of the main box body 1, and the first partition plate 15 divides the main box body 1 into a filter chamber 101 and a fan chamber 102, and the fan chamber 102 is connected to the fresh air inlet pipe 11 and the exhaust gas inlet pipe 14; a second partition plate 16 is provided on the inner wall of the fan chamber 102, and the second partition plate 16 divides the fan chamber 102 into a first chamber 103 and a second chamber 104; the first chamber 103 is connected to the exhaust gas outlet pipe 12, and the second chamber 104 is connected to the exhaust gas outlet pipe 12. 104 is connected to the fresh air inlet pipe 11; the fresh air filtering mechanism 3 includes a first fan 31, a second fan 32, a full heat exchange core 33 and a filter assembly 34; the first fan 31 is installed in the first chamber 103, and the first fan 31 is connected to the exhaust gas outlet pipe 12; the second fan 32 is installed in the second chamber 104, and the second fan 32 is connected to the fresh air outlet pipe 13; the full heat exchange core 33 is installed in the filter chamber 101, and the full heat exchange The top and bottom surfaces of the core 33 are attached to the inner wall of the main box body 1; a first baffle plate 17 is installed on the inner wall of the filter chamber 101, one side of the first baffle plate 17 is attached to the side of the full heat exchange core 33, and the other side of the first baffle plate 17 is located above the auxiliary box body 2; a second baffle plate 18 is installed in the filter chamber 101, one side of the second baffle plate 18 is attached to the other side of the full heat exchange core 33, and the other side of the second baffle plate 18 is bent and connected to the inner wall of the main box body 1 and is located above the fresh air inlet pipe 11; a first notch 151 is provided on the first partition plate 15 for connecting the first chamber 103 and the full heat exchange core 33 with the space above the second baffle plate 18; a second notch 152 is provided on the first partition plate 15 for connecting the second chamber 104 and the full heat exchange core 33 with the space above the first baffle plate 17; the filter assembly 34 is installed below the second baffle plate 18 and directly facing the fresh air inlet pipe 11.

[0035] The second fan 32 generates negative pressure when it is working, and the airflow enters the bottom of the second baffle plate 18 through the fresh air inlet pipe 11. The filter assembly 34 filters the airflow, and the filtered airflow enters the lower left side of the full heat exchange core 33. After the temperature of the airflow is adjusted by the full heat exchange core 33, it flows out through the upper right side of the full heat exchange core 33, flows to the top of the first baffle plate 17, and then enters the second chamber 104 through the second notch 152, and is discharged into the room through the fresh air outlet pipe 13; the first fan 31 generates negative pressure when it is working, and the exhaust gas enters the exhaust gas inlet pipe 14, and the exhaust gas enters the lower right side of the first baffle plate 17. After heat exchange in the full heat exchange core 33, the exhaust gas flows to the upper left side of the full heat exchange core 33, and the exhaust gas flows to the top of the second baffle plate 18. The exhaust gas passes through the first notch 151 and enters the first chamber 103. The first fan 31 discharges the exhaust gas to the outside from the exhaust gas outlet pipe 12.

[0036] A first mounting port 105 is provided on the side of the main housing 1, and the first mounting port 105 is aligned with the filter assembly 34; the filter assembly 34 includes a primary filter screen 341, a medium-efficiency filter screen 342, a high-efficiency filter screen 343 and a track 344; two tracks 344 are provided, one track 344 is installed on the bottom surface of the second blocking plate 18, and the other track 344 is installed on the bottom surface of the filter chamber 101, and the primary filter screen 341, the medium-efficiency filter screen 342, and the high-efficiency filter screen 343 are all slidably installed between the two tracks 344; a first door panel 19 is hinged on the side of the main housing 1, and the first door panel 19 is sealed on the first mounting port 105, and two first clamping blocks 110 are rotatably connected to the side of the main housing 1 to clamp the side of the first door panel 19.

[0037] A second mounting opening 106 is provided on the side of the main box body 1, and the second mounting opening 106 is aligned with the heat exchange core 33; a second door panel 111 is sealed on the side of the main box body 1, and the second door panel 111 covers the second mounting opening 106; four second clamping blocks 112 are rotatably connected to the side of the main box body 1, and the second door panel 111 is provided with a through hole for the second clamping block 112 to pass through.

[0038] When the filter assembly 34 needs to be replaced, unscrew the first clamping block 110, open the first door panel 19, remove the filter assembly 34, and then clean and replace the filter assembly 34; when the full heat exchange core 33 needs to be cleaned and replaced, rotate the second clamping block 112 to align with the through hole, then the second door panel 111 can be removed, the full heat exchange core 33 can be taken out, and then the full heat exchange core 33 can be cleaned and replaced.

[0039] The implementation principle of an easily replaceable fresh air filter in the embodiment of the present application is as follows: when the filter is in normal use, indoor exhaust gas is sucked into the exhaust gas inlet pipe 14 under negative pressure, and then flows into the main box body 1 through the exhaust gas chamber 201, and the fresh air filtering mechanism 3 discharges the exhaust gas to the outside through the exhaust gas outlet pipe 12; when a fire occurs, the driving mechanism 4 drives the two partitions 211 to rotate toward the exhaust gas chamber 201, so that the ends of the two partitions 211 are pressed against the inner wall of the exhaust gas chamber 201, and the partition 211 blocks the exhaust gas chamber 201, so that The smoke chamber 202 is connected to the main box body 1 and the exhaust gas inlet pipe 14. The main box body 1 generates negative pressure under the action of the fresh air filtering mechanism 3, sucking the indoor smoke into the exhaust gas inlet pipe 14, and then the smoke enters the smoke chamber 202. The smoke treatment mechanism 5 treats the smoke and flames, and the treated exhaust gas is then discharged into the main box body 1, so that the treated smoke is not easy to block the filter screen in the fresh air filtering mechanism 3, and is not easy to ignite the components in the fresh air filtering mechanism 3, which plays a flame retardant role, thereby improving the safety of the filter use.

[0040] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. An easily replaceable fresh air filter, characterized in that: The invention comprises a main box (1), a sub-box (2) and a fresh air filtering mechanism (3); a fresh air inlet pipe (11) and an exhaust gas outlet pipe (12) are installed on one end surface of the main box (1); a fresh air outlet pipe (13) and an exhaust gas inlet pipe (14) are installed on the other end surface of the main box (1); the fresh air filtering mechanism (3) is installed in the main box (1); the fresh air filtering mechanism (3) is used to exchange indoor and outdoor air; the sub-box (2) is installed between the main box (1) and the exhaust gas inlet pipe (14); a column (21) is vertically connected to the sub-box (2); ); the column (21) is rotatably connected to two partitions (211) whose end faces are aligned, the partition (211) divides the auxiliary box (2) into an exhaust gas chamber (201) and a smoke chamber (202), the exhaust gas chamber (201) and the exhaust gas intake pipe (14) are on the same path and connected to the main box (1); a smoke treatment mechanism (5) for treating smoke and flames is installed in the smoke chamber (202); and a driving mechanism (4) for driving the two partitions (211) to rotate around the column (21) is installed on the main box (1).

2. The easy-to-replace fresh air filter according to claim 1, characterized in that: The smoke treatment mechanism (5) comprises an inner semicircular plate (51), an outer semicircular plate (52), a metal filter (53) and porous heat-insulating flame-retardant bricks (54); the outer circumferential surface of the inner semicircular plate (51) and the inner circumferential surface of the outer semicircular plate (52) are both connected to two vertically arranged first guide strips (511); one side of the metal filter (53) is inserted between the two first guide strips (511) of the inner semicircular plate (51); and the other side of the metal filter (53) is inserted between the two first guide strips (511) of the outer semicircular plate (52). 11); the outer circumference of the inner semicircular plate (51) and the inner circumference of the outer semicircular plate (52) are both connected to two vertically arranged second guide strips (512); one side of the porous heat-insulating flame-retardant brick (54) is inserted between the two second guide strips (512) of the inner semicircular plate (51); the other side of the porous heat-insulating flame-retardant brick (54) is inserted between the two second guide strips (512) of the outer semicircular plate (52); the porous heat-insulating flame-retardant brick (54) is located on the side of the metal filter (53) away from the exhaust gas intake pipe (14).

3. The easy-to-replace fresh air filter according to claim 2, characterized in that: The sides of the two partitions (211) close to the inner semicircular plate (51) are respectively connected to one end of the first semicircular plate (212) and one end of the second semicircular plate (213); the outer side surface of the first semicircular plate (212) is attached to the inner side surface of the inner semicircular plate (51), and the outer side surface of the second semicircular plate (213) is attached to the inner side surface of the first semicircular plate (212).

4. The easy-to-replace fresh air filter according to claim 2, characterized in that: A lifting plate (6) is installed on the top of the metal filter (53), and both ends of the bottom surface of the lifting plate (6) are connected to first guide plates (61), the first guide plate (61) is located on the side of the metal filter (53) away from the porous heat-insulating flame-retardant brick (54), and the first guide plate (61) is attached to the side of the first guide bar (511) away from the metal filter (53); a metal mesh brush (62) is arranged on the side of the metal filter (53) close to the first guide plate (61), and the metal mesh brush (62) is used to clean the mesh surface of the metal filter (53); sliding blocks (621) are connected to both ends of the metal mesh brush (62), and guide grooves (611) for sliding two sliding blocks (621) are arranged in the two first guide plates (61); a lifting mechanism (63) for driving the metal mesh brush (62) to move up and down is installed on the metal filter (53).

5. The easily replaceable fresh air filter according to claim 4, characterized in that: The lifting mechanism (63) comprises a light metal rotating plate (631), a first traction rope (632), a second traction rope (633), a first guide wheel (634), a second guide wheel (635), a winding disk (636) and a counterweight (636); the two ends of the bottom surface of the lifting plate (6) are connected to the second guide plates (64), and the second guide plates (64) are located on one side of the metal mesh brush (62); the two ends of one side of the rotating plate (631) are rotatably connected between the two second guide plates (64); the first guide wheel (634) is rotatably connected to the bottom end of the second guide plate (64), and the second guide wheel (635) is rotatably connected to the top surface of the lifting plate (6); the winding disk (636) is rotatably connected to the top surface of the lifting plate (6), and the winding disk (636) is provided with an annular first A winding groove (6361) and an annular second winding groove (6362), the diameter of the first winding groove (6361) being smaller than the diameter of the second winding groove (6362); one end of the first traction rope (632) is connected to the bottom edge of the rotating plate (631), the other end of the first traction rope (632) is connected to the inner wall of the first winding groove (6361), the first traction rope (632) passes around the bottom surface of the first guide wheel (634), and the first traction rope (632) passes between each pair of two second guide wheels (635); one end of the second traction rope (633) is connected to the top surface of the metal mesh brush (62), the other end of the second traction rope (633) is connected to the inner wall of the second winding groove (6362); the counterweight (636) is connected to the side of the metal mesh brush (62).

6. The easily replaceable fresh air filter according to claim 4, characterized in that: The bottom surface of the auxiliary box (2) is provided with an ash discharge port (24), which is located below the metal mesh brush (62). The inner wall of the ash discharge port (24) is connected to a first guide plate (25) and a second guide plate (26), the first guide plate (25) is located below the first guide plate (61), the second guide plate (26) is located on a side of the first guide plate (25) away from the metal filter (53), the top end of the second guide plate (26) extends out of the bottom surface of the main box (1) and is bent toward the metal filter (53), and the bottom edge of the first guide plate (25) is inclined toward the second guide plate (26).

7. The easily replaceable fresh air filter according to claim 1, characterized in that: The driving mechanism (4) comprises a driving motor (41), a screw (42), a transmission plate (43), a push-pull plate (44) and a push plate (45); two push plates (45) are provided, the two push plates (45) are respectively connected to the side surfaces of the two partitions (211) close to the exhaust chamber (201) and are symmetrically arranged with respect to the column (21), and a waist-shaped hole (451) is arranged in the push plate (45); the driving motor (41) is installed on the top surface of the auxiliary box (2), the output shaft of the driving motor (41) faces the side away from the push plate (45), and the screw (42) is arranged on the side of the push plate (45). ) end is connected to the output shaft of the driving motor (41), the transmission plate (43) is sleeved on the circumference of the screw (42), the transmission plate (43) is located on the side of the auxiliary box (2), two push-pull plates (44) are provided, the two push-pull plates (44) are respectively connected to the two ends of the side of the transmission plate (43) close to the partition (211), the ends of the two push-pull plates (44) extend into the exhaust gas chamber (201) and extend to the bottom surfaces of the two push plates (45), and the top surface of the end of the push-pull plate (44) is connected to a positioning pin (441) for extending into the waist-shaped hole (451).

8. The easily replaceable fresh air filter according to claim 4, characterized in that: A first access opening (22) is installed on the top surface of the auxiliary box body (2), the first access opening (22) is connected to the smoke chamber (202), the first access opening (22) is aligned with the lifting plate (6), the top surface of the lifting plate (6) is connected to a handle (65), and the top surface of the first access opening (22) is installed with a first cover plate (221).

9. The easily replaceable fresh air filter according to claim 4, characterized in that: The top surface of the auxiliary box body (2) is provided with an opening, the opening is aligned with the porous heat-insulating flame-retardant brick (54), a second cover plate (23) is arranged in the opening, and the top surface of the porous heat-insulating flame-retardant brick (54) is provided with a grip (541) for carrying.

10. The easily replaceable fresh air filter according to claim 1, characterized in that: A first partition plate (15) is provided on the inner wall of the main box body (1), the first partition plate (15) divides the main box body (1) into a filter chamber (101) and a fan chamber (102), the fan chamber (102) being connected to a fresh air inlet pipe (11) and an exhaust gas inlet pipe (14); a second partition plate (16) is provided on the inner wall of the fan chamber (102), the second partition plate (16) divides the fan chamber (102) into a first chamber (103) and a second chamber (104); the first chamber (103) is connected to the exhaust gas outlet pipe (12), the second chamber (104) is connected to the exhaust gas outlet pipe (12), and the second chamber (104) is connected to the exhaust gas outlet pipe (12). The second chamber (104) is connected to the fresh air inlet pipe (11); the fresh air filtering mechanism (3) comprises a first fan (31), a second fan (32), a full heat exchange core (33) and a filter assembly (34); the first fan (31) is installed in the first chamber (103), and the first fan (31) is connected to the exhaust gas outlet pipe (12); the second fan (32) is installed in the second chamber (104), and the second fan (32) is connected to the fresh air outlet pipe (13); the full heat exchange core (33) is installed in the filter chamber (101) The top and bottom surfaces of the full heat exchange core (33) are attached to the inner wall of the main box body (1); a first baffle plate (17) is installed on the inner wall of the filter chamber (101); one side of the first baffle plate (17) is attached to the side of the full heat exchange core (33), and the other side of the first baffle plate (17) is located above the auxiliary box body (2); a second baffle plate (18) is installed in the filter chamber (101); one side of the second baffle plate (18) is attached to the other side of the full heat exchange core (33), and the other side of the second baffle plate (18) is bent and connected to the main box body ( 1) inner wall and located above the fresh air inlet pipe (11); a first notch (151) is provided on the first partition plate (15) for connecting the first chamber (103) and the full heat exchange core (33) with the space above the second blocking plate (18); a second notch (152) is provided on the first partition plate (15) for connecting the second chamber (104) and the full heat exchange core (33) with the space above the first blocking plate (17); and a filter assembly (34) is installed below the second blocking plate (18) and directly facing the fresh air inlet pipe (11).

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