Clean type central air conditioner fresh air purification device

Abstract

The invention relates to the technical field of fresh air purification, in particular to a clean type central air conditioner fresh air purification device. Comprising a shell, and the shell is fixedly connected and communicated with an air inlet pipeline and an exhaust pipeline; the connecting shell is fixedly connected into the shell, a rectangular shell is fixedly connected into the shell, the rectangular shell is slidably connected with a rectangular frame, the shell is provided with a sliding rail, and filtering systems are jointly arranged between the rectangular frame and the air inlet pipeline, on the sliding rail and between the air exhaust pipeline and the connecting shell; the filtering system comprises three filtering frames, the three filtering frames are slidably connected to the rectangular frame, the sliding rail and the connecting shell respectively, the filtering frames are fixedly connected with waved plates, and the waved plates are fixedly connected with spikes. Through the combination of the waved plate and the spikes, catkins in air are intercepted by the spikes on the waved plate, and the catkins are prevented from completely blocking a filtering system in the purification device.

Description

Technical Field

[0001] The present invention relates to the technical field of fresh air purification, and in particular to a clean central air-conditioning fresh air purification device. Background Art

[0002] A fresh air purification device is a device used to improve indoor air quality. It introduces fresh outdoor air, filters and purifies it, then sends the cleaned air into the room, while expelling the dirty air in the room. While keeping the room ventilated, it can effectively remove pollutants in the air, such as dust and pollen, which plays an important role in improving the comfort and health level of the living or working environment. Clean fresh air purification devices usually adopt a multi-stage filtration system, which can remove bacteria, viruses, harmful gases, etc. in the air to ensure that the air entering the room is as clean and healthy as possible. Some clean fresh air purification devices can be used in conjunction with central air conditioning, which can not only maintain a suitable indoor temperature, but also continuously introduce and purify fresh air to optimize the living health environment. This type of clean fresh air purification device will also be equipped with a total heat exchanger or a sensible heat exchanger to allow heat exchange between the incoming and outgoing air, thereby reducing the load of the air conditioning system and saving energy.

[0003] When spring comes, willow trees will produce a large number of catkins, resulting in a large amount of catkins floating in the air. These light flocs will enter the device through the entrance of the fresh air purification device. The catkins entering the fresh air purification device will adhere to the filter. At this time, the dust and moisture in the air will mix with the catkins on the filter. The mixed debris will adhere to the filter, causing the filter to be blocked, resulting in an increase in the frequency of subsequent filter cleaning, and the debris adhering to the filter will make the subsequent cleaning process of the filter difficult. Summary of the invention

[0004] In order to overcome the disadvantage that catkins adhere to the filter and cause the filter to be frequently cleaned subsequently, the present invention provides a clean central air conditioning fresh air purification device.

[0005] The technical solution is as follows: A clean central air conditioning fresh air purification device, comprising: A shell, the shell being fixedly connected to and in communication with an air inlet duct and an air exhaust duct; A connecting shell is fixedly connected to the shell, a rectangular shell is fixedly connected to the shell, the rectangular shell is slidably connected to a rectangular frame, and a first elastic member is fixedly connected between the two, the shell is provided with a sliding track, a filter system is commonly provided between the rectangular frame and the air inlet duct, on the sliding track, and between the exhaust duct and the connecting shell, the filter system is used to intercept flocs in the air, the filter system includes three filter frames, the three filter frames are respectively slidably connected to the rectangular frame, the sliding track and the connecting shell, the filter frames are fixedly connected to a plurality of wave plates, and a plurality of spikes are fixedly connected to the wave plates; The first replacement component is arranged in the housing and is used to replace the filter frame adjacent to the rectangular frame.

[0006] More preferably, the first replacement component comprises: A first electric push rod is fixedly connected to the housing, wherein a straight rod is fixedly connected to a telescopic end of the first electric push rod; A guide rod, fixedly connected to a side of the rectangular frame close to the straight rod, wherein the straight rod limits the rectangular frame by squeezing the guide rod; The three limiting plates are respectively fixed to one side of the adjacent filter frame close to the first electric push rod, and the telescopic end of the first electric push rod limits the adjacent filter frame through the adjacent limiting plates.

[0007] More preferably, the first replacement component further comprises: A limit block is slidably connected to a side of the housing close to the first electric push rod, and a second elastic member is fixedly connected therebetween. A triangular groove is provided on a side of the filter frame close to the limit plate, and the limit block limits the adjacent filter frame through the triangular groove of the adjacent filter frame; An electric slide rail is installed in the housing, the filter frame adjacent to the rectangular frame slides on the electric slide rail, the electric slide rail is slidably connected with an electric slider, a first elastic telescopic plate is fixedly connected to a side of the electric slider away from the first electric push rod, and the telescopic portion of the first elastic telescopic plate and the adjacent filter frame are mutually limited; The second replacement component is arranged in the shell and is used to replace the filter frame adjacent to the connecting shell.

[0008] More preferably, the second replacement assembly comprises: A second elastic expansion plate is fixedly connected to the exhaust duct, and the expansion portion of the second elastic expansion plate and the adjacent filter frame are mutually limited; An elastic telescopic rod is fixedly connected to the housing, a limiting hole is arranged on a side of the filter frame away from the limiting plate, the telescopic end of the elastic telescopic rod and the limiting hole of the adjacent filter frame are mutually squeezed, and an extrusion block is fixedly connected to a side of the filter frame away from the limiting plate, and the extrusion block is used to squeeze the limiting plates of different filter frames; The return moving assembly is arranged on the electric slide block and is used for driving the filter frame replaced by the connecting shell to move.

[0009] More preferably, the return assembly comprises: An elastic plate, fixedly connected to the lower side of the electric slider, and provided with a triangular protrusion on the elastic plate; The limiting plate is provided with a rectangular slot, and the triangular protrusion of the elastic plate limits the adjacent filter frame through the rectangular slot of the adjacent limiting plate.

[0010] More preferably, the return assembly further comprises: A first fixed shell is fixedly connected to the housing, a first sliding rod is sealingly and slidably connected inside the first fixed shell, and a third elastic member is fixedly connected between the first sliding rod and the electric slider, and the first sliding rod and the electric slider are pressed against each other; A hydraulic telescopic rod is fixed in the housing, the sliding track is slidably connected to the housing, a fourth elastic member is fixed between the telescopic end of the hydraulic telescopic rod and the sliding track, and an oil guide pipe is connected between the hydraulic telescopic rod and the first fixed shell; The L-shaped track is fixedly connected to the shell, and the L-shaped track is in contact with the sliding track.

[0011] More preferably, it also includes: Two shielding plates distributed in mirror image are respectively fixed to two sides of the electric slide rail, and the two shielding plates are used to block the filter frame.

[0012] More preferably, it further comprises a booster assembly, which is arranged in the connecting shell and is used to change the flow area of ​​the connecting shell, and the booster assembly comprises: The mirror-image-distributed sliding plates are all slidably connected in the connection shell. The mirror-image-distributed sliding plates are respectively located on both sides of the connection shell. An elastic membrane is fixedly connected between the side of the sliding plate away from the exhaust duct and the connection shell.

[0013] More preferably, the booster assembly further comprises: A second electric push rod is fixed to the housing; A limit rod is slidably connected to the connection shell, the limit rod is fixedly connected to the telescopic end of the second electric push rod, and the limit rod is used to push the two sliding plates.

[0014] More preferably, the booster assembly further comprises: A second fixed shell distributed in a mirror image is fixedly connected to both sides of the connecting shell respectively, a piston is sealingly and slidably connected in the second fixed shell, a second sliding rod is sealingly and slidably connected in the second fixed shell, a plurality of flow holes are arranged on the second sliding rod, and the second sliding rod is fixedly connected to the adjacent sliding plate; Two connecting rods are respectively sealed and slidably connected in adjacent second sliding rods. The connecting rods pass through adjacent sliding plates and are limitedly slidably connected with adjacent sliding plates. A connecting block with the same number of flow holes as the adjacent second sliding rod is fixed on the connecting rod. The connecting block is provided with guide holes, and the connecting block is used to reduce the flow area of ​​the flow holes on the adjacent second sliding rod.

[0015] The beneficial effects produced by utilizing the above technical solution are as follows: through the combination of the wave plates and the spikes, the present invention enables the catkins in the air to be intercepted by the spikes on the wave plates when passing between the wave plates, thereby preventing the catkins from being completely blocked in the filter system inside the purification device, causing subsequent cleaning difficulties, reducing the maintenance frequency of the filter system inside the purification device, and utilizing a multi-stage filter system to purify the air entering the device, thereby improving the cleanliness of the air delivered by the device.

[0016] By replacing the filter frame at the air inlet duct and using the gas blown out of the connecting shell to clean the catkins on the filter frame, the filter frame at the air inlet duct can be replaced after cleaning, ensuring that the filter frame can continuously intercept the catkins in the air and ensure the interception efficiency.

[0017] By reducing the ventilation area of ​​the connecting shell, the flow rate of the gas blown out of the connecting shell is increased, thereby increasing the cleaning force on the filter frame. At the same time, the air outlet position of the connecting shell is reciprocated, thereby increasing the cleaning force on the filter frame and allowing the gas blown out of the connecting shell to cover and clean the filter frame. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention; Figure 2 It is a schematic diagram of the three-dimensional structure of the rectangular frame and the filtering frame of the present invention; Figure 3 It is a schematic diagram of the three-dimensional structure of the connecting shell and the shielding plate of the present invention; Figure 4 It is a schematic diagram of the three-dimensional structure of the first electric push rod and the straight rod of the present invention; Figure 5 It is a three-dimensional structural schematic diagram of the filter frame and the limiting plate of the present invention; Figure 6It is a schematic diagram of the three-dimensional structure of the limit block and the first fixed shell of the present invention; Figure 7 It is a schematic diagram of the three-dimensional structure of the guide rod and the hydraulic telescopic rod of the present invention; Figure 8 It is a schematic diagram of the three-dimensional structure of the electric slider and the first sliding rod of the present invention; Fig. 9 It is a schematic diagram of the three-dimensional structure of the L-shaped track of the present invention; Fig.10 It is a schematic diagram of the three-dimensional structure of the elastic telescopic rod and the second electric push rod of the present invention; Fig.11 An exploded view of the limit rod of the present invention; Fig.12 It is a schematic diagram of the three-dimensional structure of the second sliding rod and the connecting rod of the present invention; Fig.13 It is a schematic diagram of the three-dimensional structure of the second sliding rod and the connecting block of the present invention.

[0019] The markings in the figure are: 1-shell, 2-air inlet duct, 3-exhaust duct, 4-exhaust fan, 5-exhaust fan, 501-connecting shell, 6-primary filter, 7-secondary filter, 8-third-stage filter, 9-heat recovery module, 10-rectangular shell, 11-rectangular frame, 12-filter frame, 13-wave plate, 14-sliding track, 1401-L-shaped track, 15-first electric push rod, 16-straight rod, 17-guide rod, 18-limiting plate, 19 -limiting block, 20-electric slide rail, 2001-shielding plate, 21-electric sliding block, 22-first elastic telescopic plate, 23-second elastic telescopic plate, 24-elastic telescopic rod, 26-extrusion block, 28-elastic plate, 29-first fixed shell, 30-first sliding rod, 31-hydraulic telescopic rod, 32-sliding plate, 33-second electric push rod, 34-limiting rod, 35-second fixed shell, 36-second sliding rod, 37-connecting rod, 38-connecting block. DETAILED DESCRIPTION

[0020] 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.

[0021] Embodiment 1: A clean central air conditioning fresh air purification device, such as Figure 1-Figure 5As shown, it includes: a shell 1, the shell 1 is fixedly connected to and connected with an air inlet duct 2 and an exhaust duct 3; a connecting shell 501, fixedly connected to the shell 1, a rectangular shell 10 is fixedly connected to the shell 1, the rectangular shell 10 is slidably connected to a rectangular frame 11, and a first elastic member is fixedly connected between the two, the shell 1 is provided with a sliding track 14, a filter system is commonly provided between the rectangular frame 11 and the air inlet duct 2, on the sliding track 14, and between the exhaust duct 3 and the connecting shell 501, the filter system is used to intercept flocs in the air, the filter system includes three filter frames 12, the three filter frames 12 are respectively slidably connected to the rectangular frame 11, the sliding track 14 and the connecting shell 501, the filter frames 12 are fixedly connected to a plurality of wave plates 13, and a plurality of spikes are fixedly connected to the wave plates 13; a first replacement component is provided in the shell 1, and is used to replace the filter frames 12 adjacent to the rectangular frame 11.

[0022] In the above scheme, a shell cover not shown in the figure is provided on the shell 1, and a filter system switching chamber, an air inlet chamber and an exhaust chamber are provided in the shell 1. A primary filter screen 6 and a secondary filter screen 7 are installed in the air inlet chamber of the shell 1, and a three-stage filter screen 8 is installed between the air inlet chamber and the exhaust chamber of the shell 1. The primary filter screen 6, the secondary filter screen 7 and the front half of the three-stage filter screen 8 are used to grade and filter the air entering the device. An exhaust fan 4 is installed in the air inlet chamber of the shell 1, and an exhaust fan 5 is installed in the exhaust chamber of the shell 1. The connecting shell 501 connects the filter system switching chamber and the exhaust chamber of the shell 1. The air outlet of the exhaust fan 5 is connected to the connecting shell 501. The side of the shell 1 close to the exhaust fan 4 is provided with an air conditioning intake interface and an air conditioning exhaust interface, which are respectively used to connect the air intake and exhaust of the air conditioner. The air conditioning exhaust interface is connected to the air outlet of the exhaust fan 4. The exhaust fan 4 and the exhaust fan 5 are respectively used to send the outside air to the air conditioning intake interface through the device and to discharge the air exhausted by the air conditioner through the device. A heat recovery module 9 is commonly provided between the air intake cavity and the exhaust cavity of the shell 1. The heat recovery module 9 is used to make the exhaust gas of the air conditioner exchange heat with the air entering the air conditioner to improve energy saving. The utilization rate of the heat recovery module 9 is provided, and the heat recovery module 9 is located between the secondary filter screen 7 and the tertiary filter screen 8, so that the tertiary filter screen 8 can filter the gas discharged from the air conditioner to prevent the heat recovery module 9 from being blocked. The air inlet duct 2 and the exhaust duct 3 are both composed of a circular duct and a square duct. The circular duct parts of the air inlet duct 2 and the exhaust duct 3 are both located on the outside of the shell 1, which can be used to connect the extension duct to facilitate gas exchange with the outside. The first elastic member between the rectangular shell 10 and the rectangular frame 11 is set as a spring, which is used to drive the rectangular frame 11 to reset. The rectangular frame 11 is provided with a raised portion The filter frame 12 is provided with a slide, the raised portion of the rectangular frame 11 guides the filter frame 12 through the slide of the filter frame 12, the sliding track 14 is located below the rectangular frame 11, and the filter frame 12 on the sliding track 14 is used to replace the filter frame 12 at the air inlet duct 2, and the filter frame 12 at the exhaust duct 3 enables the gas blown out of the exhaust fan 5 to clean it. For the convenience of description, the rectangular frame 11, the sliding track 14 and the filter frame 12 of the connecting shell 501 are respectively named as filter frame No. 1, filter frame No. 12 and filter frame No. 3.

[0023] like Figure 3-Figure 7 As shown, the first replacement component includes: a first electric push rod 15, fixed to the shell 1, and the telescopic end of the first electric push rod 15 is fixed with a straight rod 16; a guide rod 17, fixed to a side of the rectangular frame 11 close to the straight rod 16, and the straight rod 16 limits the rectangular frame 11 by squeezing the guide rod 17; three limiting plates 18, respectively fixed to a side of the adjacent filter frame 12 close to the first electric push rod 15, and the telescopic end of the first electric push rod 15 limits the adjacent filter frame 12 through the adjacent limiting plates 18.

[0024] In the above solution, the guide rod 17 is in an inclined state, so that the straight rod 16 squeezes the guide rod 17 to drive the rectangular frame 11 to move, and the limit plate 18 is made of high-strength steel to extend the service life of the limit plate 18.

[0025] like Figure 4-Figure 8 As shown, the first replacement component also includes: a limit block 19, which is slidably connected to the side of the shell 1 close to the first electric push rod 15, and a second elastic member is fixedly connected therebetween, and a triangular groove is provided on the side of the filter frame 12 close to the limit plate 18, and the limit block 19 limits the adjacent filter frame 12 through the triangular groove of the adjacent filter frame 12; an electric slide rail 20, which is installed in the shell 1, and the filter frame 12 adjacent to the rectangular frame 11 slides on the electric slide rail 20, and the electric slide rail 20 is slidably connected to an electric slider 21, and a first elastic telescopic plate 22 is fixedly connected to the side of the electric slider 21 away from the first electric push rod 15, and the telescopic portion of the first elastic telescopic plate 22 and the adjacent filter frame 12 limit each other; a second replacement component, which is arranged in the shell 1, and is used to replace the filter frame 12 adjacent to the connecting shell 501.

[0026] In the above scheme, the second elastic member between the limit block 19 and the shell 1 is set as a tension spring, which is used to drive the limit block 19 to reset. The limit block 19 is initially limited by the triangular groove of the adjacent filter frame 12, so that the second elastic member of the limit block 19 is initially in a stretched state, and the telescopic portion of the first elastic telescopic plate 22 is provided with an inclined surface. The inclined surface of the telescopic portion of the first elastic telescopic plate 22 is located on the side of the first elastic telescopic plate 22 away from the adjacent filter frame 12, so that the first elastic telescopic plate 22 can drive the adjacent filter frame 12 to move when it moves backward, and when the first elastic telescopic plate 22 moves forward, the filter frame 12 at the air inlet duct 2 squeezes the inclined surface on its telescopic portion, so that the telescopic portion of the first elastic telescopic plate 22 contracts.

[0027] like Figure 3 , Figure 5 , Fig. 9 and Fig.10 As shown, the second replacement component includes: a second elastic telescopic plate 23, fixedly connected to the exhaust duct 3, the telescopic part of the second elastic telescopic plate 23 and the adjacent filter frame 12 limit each other; an elastic telescopic rod 24, fixedly connected to the shell 1, a limiting hole is provided on the side of the filter frame 12 away from the limiting plate 18, the telescopic end of the elastic telescopic rod 24 and the limiting hole of the adjacent filter frame 12 squeeze each other, and an extrusion block 26 is fixedly connected to the side of the filter frame 12 away from the limiting plate 18, and the extrusion block 26 is used to squeeze the limiting plates 18 of different filter frames 12; a return assembly, arranged on the electric slider 21, used to drive the filter frame 12 replaced by the connecting shell 501 to move.

[0028] In the above scheme, the telescopic portion of the second elastic telescopic plate 23 is provided with an inclined surface, and the inclined surface of the telescopic portion of the second elastic telescopic plate 23 is located on the side of the second elastic telescopic plate 23 away from the exhaust duct 3. When the filter frame 12 moves in the direction of the exhaust duct 3, it can squeeze the telescopic portion of the second elastic telescopic plate 23, so that the telescopic portion of the second elastic telescopic plate 23 contracts. The telescopic end of the elastic telescopic rod 24 is provided with an upward inclined surface, so that when the filter frame 12 moves downward, it can squeeze the inclined surface of the telescopic end of the elastic telescopic rod 24, so that the elastic telescopic rod 24 releases the limit on the upper limit hole of the filter frame 12, and the limiting plates 18 and the extrusion blocks 26 of different filter frames 12 squeeze each other, so that when the filter frame 12 at the air inlet duct 2 moves toward the filter frame 12 at the exhaust duct 3, the extrusion blocks 26 of the filter frame 12 at the air inlet duct 2 squeeze the limiting plates 18 of the filter frame 12 at the exhaust duct 3, thereby causing the filter frame 12 at the exhaust duct 3 to move downward.

[0029] like Figure 5 , Figure 7 and Figure 8 As shown, the return assembly includes: an elastic plate 28, which is fixed to the lower side of the electric slider 21, and a triangular protrusion is provided on the elastic plate 28; a rectangular slide groove is provided on the limiting plate 18, and the triangular protrusion of the elastic plate 28 limits the adjacent filter frame 12 through the rectangular slide groove of the adjacent limiting plate 18.

[0030] In the above solution, the elastic plate 28 pulls the limiting plate 18 to move through the rectangular sliding groove of the limiting plate 18, so that the limiting plate 18 drives the adjacent filter frame 12 to move.

[0031] like Figure 6-Figure 8 As shown, the return movement assembly also includes: a first fixed shell 29, fixed to the shell 1, a first sliding rod 30 is sealed and slidably connected in the first fixed shell 29, and a third elastic member is fixed between the two, the first sliding rod 30 and the electric slider 21 are squeezed against each other; a hydraulic telescopic rod 31, fixed to the shell 1, the sliding track 14 is slidably connected to the shell 1, a fourth elastic member is fixed between the telescopic end of the hydraulic telescopic rod 31 and the sliding track 14, and an oil guide pipe is connected between the hydraulic telescopic rod 31 and the first fixed shell 29; an L-shaped track 1401, fixed to the shell 1, and the L-shaped track 1401 is in contact with the sliding track 14.

[0032] In the above scheme, the first fixed shell 29, the oil guide pipe of the first fixed shell 29 and the hydraulic telescopic rod 31 are all filled with hydraulic oil. The third elastic member between the first fixed shell 29 and the first sliding rod 30 is set as a tension spring, which is used to drive the first sliding rod 30 to reset. In the initial state, the first sliding rod 30 is squeezed by the electric slider 21, the third elastic member of the first fixed shell 29 is in a stretched state, and the telescopic end of the hydraulic telescopic rod 31 is in an extended state. The fourth elastic member between the telescopic end of the hydraulic telescopic rod 31 and the sliding rail 14 is set as a spring, so that after the telescopic end of the hydraulic telescopic rod 31 is retracted to drive the sliding rail 14 to move, the telescopic end of the hydraulic telescopic rod 31 can be normally extended while the sliding rail 14 remains in position unchanged. The length of the sliding rail 14 is consistent with the length of the filter frame 12. The L-shaped track 1401 and the sliding rail 14 are initially in an interlaced state, so that the L-shaped track 1401 can limit the filter frame 12 on the sliding rail 14.

[0033] like Figure 3 and Fig. 9 As shown, it also includes: two baffles 2001 distributed in a mirror image, which are respectively fixed to the two sides of the electric slide rail 20, and the two baffles 2001 are used to block the filter frame 12. A limiting portion is set on the upper side of the baffle 2001 to limit the filter frame 12 so that the filter frame 12 can move stably along the baffle 2001.

[0034] In the above solution, when the filter frame 12 moves between the two shielding plates 2001 , the filter frame 12 is blocked by the two shielding plates 2001 , so that the catkins on the filter frame 12 cannot leak out of the filter frame 12 .

[0035] In the process of using the present device to supply air to the air conditioner, the exhaust fan 4 operates to draw the outside air into the present device through the air inlet duct 2, and the air entering the present device passes through the air inlet duct 2, the first filter frame 12, the rectangular frame 11, the rectangular shell 10, the first-level filter screen 6 and the second-level filter screen 7 into the heat recovery module 9. At the same time, the exhaust fan 5 draws the gas exhausted by the air conditioner into the heat recovery module 9 through the air conditioning exhaust interface of the shell 1 and the third-level filter screen 8. The air entering the heat recovery module 9 from the outside and the gas entering the heat recovery module 9 from the air conditioner are heat exchanged. Then the exhaust fan 4 sends the air that has undergone heat exchange into the air conditioner through the air conditioning air inlet interface of the shell 1, and the exhaust fan 5 discharges the air that has undergone heat exchange through the connecting shell 501, the third filter frame 12 and the exhaust duct 3. The air entering the present device is purified by the multi-stage filtration system to improve the cleanliness of the air supplied to the air conditioner by the present device.

[0036] If a large amount of catkins appears in the air in spring, the exhaust fan 4 will bring the catkins in the air into the device when it draws the outside air into the device. When the catkins in the air pass through the No. 1 filter frame 12 and the wave plate 13 thereon, the air is affected by the wave plate 13 to make the catkins move along the surface of the wave plate 13. At this time, the spikes on the wave plate 13 hook the catkins in the air, preventing the catkins from all accumulating on the primary filter 6, thereby reducing the number of maintenance times for the primary filter 6.

[0037] After the spikes of the wave plate 13 intercept the catkins for a specified time (adjusted according to different environmental conditions), the first electric push rod 15 is started, and the telescopic end of the first electric push rod 15 extends out to drive the straight rod 16 to move upward, and simultaneously pushes the limit plate 18 of the No. 2 filter frame 12 to move the No. 2 filter frame 12 upward. In the process of the straight rod 16 and the No. 2 filter frame 12 moving upward, the straight rod 16 squeezes the guide rod 17, and the guide rod 17 drives the rectangular frame 11 to slide into the rectangular shell 10 and compresses the first elastic member of the rectangular frame 11. After the straight rod 16 pushes the rectangular frame 11 into the rectangular shell 10 through the guide rod 17, the straight rod 16 breaks away from contact with the lower side of the guide rod 17 and slides relative to the left side of the guide rod 17. At this time, the No. 2 filter frame 12 enters between the No. 1 filter frame 12 and the rectangular frame 11, and the protrusion of the rectangular frame 11 enters the slideway of the No. 2 filter frame 12.

[0038] Until the No. 2 filter frame 12 moves to a position flush with the No. 1 filter frame 12, the telescopic end of the first electric push rod 15 stops extending, and the No. 2 filter frame 12 limits the rectangular frame 11. After the No. 2 filter frame 12 stops moving, the electric slider 21 is started, and the electric slider 21 drives the first elastic telescopic plate 22 to move backward, and the telescopic part of the first elastic telescopic plate 22 drives the No. 1 filter frame 12 to move backward. During the movement of the No. 1 filter frame 12, the triangular groove of the No. 1 filter frame 12 is disengaged from the limit block 19, the tension of the second elastic part of the limit block 19 is released, and drives the limit block 19 to move to the right, and the limit block 19 moves into the triangular groove of the No. 2 filter frame 12.

[0039] After the limit block 19 moves into the triangular groove of the No. 2 filter frame 12, the telescopic end of the first electric push rod 15 is controlled to be retracted, driving the straight rod 16 to move downward, and the telescopic end of the first electric push rod 15 is retracted to release the support of the upper limit plate 18 on the No. 2 filter frame 12. At this time, the No. 2 filter frame 12 is supported by the limit block 19 until the telescopic end of the first electric push rod 15 is completely retracted and drives the straight rod 16 to reset and stop. At this time, the No. 1 filter frame 12 is out of contact with the No. 2 filter frame 12, and the first elastic member of the rectangular frame 11 is in contact with the No. 2 filter frame 12. Under the action of elastic force, the rectangular frame 11 moves to reset and pushes the No. 2 filter frame 12 to move onto the electric slide rail 20. The No. 2 filter frame 12 drives the limit block 19 to move to the left through the triangular groove thereon, and at the same time stretches the second elastic part of the limit block 19 to replace the initial No. 1 filter frame 12, and intercepts the catkins in the air passing through the No. 2 filter frame 12 through the wave plate 13 in the No. 2 filter frame 12 and the spikes on the wave plate 13. By replacing the No. 1 filter frame 12, the interception effect of the filtration system on the catkins in the air is improved.

[0040] During the process of the electric slider 21 driving the filter frame No. 1 to move through the first elastic telescopic plate 22, the filter frame No. 1 slides between the two baffle plates 2001, and the two baffle plates 2001 are used to block the two sides of the filter frame No. 1 to prevent the catkins in the filter frame No. 12 from falling into the interior of the device during the movement of the filter frame No. 1. After the filter frame No. 1 moves to the point where the extrusion block 26 on it contacts the limit plate 18 on the filter frame No. 3, the extrusion block 26 squeezes the limit plate 18 of the filter frame No. 3, so that the filter frame No. 3 moves downward, and the filter frame No. 3 slides relative to the telescopic part of the second elastic telescopic plate 23. The filter frame No. 3 moves downward and the limit hole on it squeezes the telescopic end of the elastic telescopic rod 24, so that the telescopic end of the elastic telescopic rod 24 contracts and releases the limit on the filter frame No. 3, and then the filter frame No. 3 moves downward along the L-shaped track 1401.

[0041] After the No. 3 filter frame 12 moves downward, the telescopic end of the elastic telescopic rod 24 is reset under the action of its own elasticity. At this time, the No. 1 filter frame 12 squeezes the telescopic part of the second elastic telescopic plate 23, and the telescopic part of the second elastic telescopic plate 23 contracts. Then, the No. 1 filter frame 12 slides relative to the telescopic part of the second elastic telescopic plate 23 until the No. 1 filter frame 12 moves to the initial position of the No. 3 filter frame 12 and the electric slider 21 stops moving. At this time, the No. 1 filter frame 12 is out of contact with the electric slide rail 20, and the No. 1 filter frame 12 is released. In addition to squeezing the telescopic part of the second elastic telescopic plate 23, the telescopic part of the second elastic telescopic plate 23 is reset under the action of its own elasticity and limits the No. 1 filter frame 12. At the same time, the elastic telescopic rod 24 limits the limiting hole of the No. 1 filter frame 12. Under the joint action of the elastic telescopic rod 24 and the second elastic telescopic plate 23, the stability of the No. 1 filter frame 12 is maintained. By replacing the No. 1 filter frame 12 to the exhaust duct 3 and using the exhaust fan 5 to backflush and clean the catkins on the No. 1 filter frame 12, the number of maintenance times for the filtration system is reduced.

[0042] When the electric slider 21 initially moves backward, it simultaneously drives the elastic plate 28 to move and releases the squeezing of the first sliding rod 30. The third elastic member of the first sliding rod 30 drives the first sliding rod 30 to move upward under the action of its own elastic force. The first sliding rod 30 moves through the oil guide pipe of the first fixed shell 29 to pump the hydraulic pressure in the hydraulic telescopic rod 31 into the first fixed shell 29, and drives the telescopic end of the hydraulic telescopic rod 31 to retract. The telescopic end of the hydraulic telescopic rod 31 drives the sliding track 14 to move leftward through the fourth elastic member thereon, so that the sliding track 14 is aligned with the L-shaped track 1401. When the electric slider 21 pushes the No. 1 filter frame 12 to complete the replacement of the No. 3 filter frame 12, the triangular protrusion of the elastic plate 28 is squeezed by the limit plate 18 of the No. 3 filter frame 12, causing the elastic plate 28 to deform. After the triangular protrusion of the elastic plate 28 is aligned with the slide groove of the limit plate 18, the elastic plate 28 recovers under the action of its own elasticity and the triangular protrusion on it enters the slide groove of the limit plate 18.

[0043] After the triangular protrusion of the elastic plate 28 enters the slide groove of the limit plate 18, the electric slider 21 is controlled to move forward, and the No. 3 filter frame 12 is driven to move forward through the elastic plate 28. During the movement of the No. 3 filter frame 12, the No. 3 filter frame 12 gradually enters the sliding track 14 through the L-shaped track 1401, and the electric slider 21 squeezes the first sliding rod 30, so that the first sliding rod 30 moves downward and stretches the third elastic member thereon. After the first sliding rod 30 is reset, the electric slider 21 stops moving, and the first sliding rod 30 moves to push the hydraulic oil in the first fixed shell 29 into the hydraulic telescopic rod 31 through the oil guide pipe of the first fixed shell 29, so that the telescopic end of the hydraulic telescopic rod 31 is extended and reset. Because the No. 3 filter frame 12 has not completely entered the sliding track 14 within the first time when the electric slider 21 squeezes the first sliding rod 30, the telescopic end of the hydraulic telescopic rod 31 is extended and cannot synchronously push the sliding track 14 to reset, but first compresses the fourth elastic part of the sliding track 14. After the No. 3 filter frame 12 completely enters the sliding track 14, the elastic force of the fourth elastic part of the sliding track 14 is released and drives the sliding track 14 to move and reset. The sliding track 14 drives the No. 3 filter frame 12 thereon to move to the bottom of the rectangular frame 11. At this time, the sliding track 14 and the L-shaped track 1401 are in an interlaced state, so that the L-shaped track 1401 limits the No. 3 filter frame 12 on the sliding track 14.

[0044] When the electric slider 21 drives the filter frame No. 3 to move forward, when the telescopic portion of the first elastic telescopic plate 22 contacts the filter frame No. 2, the telescopic portion of the first elastic telescopic plate 22 is squeezed and contracted by the filter frame No. 2. After the electric slider 21 is reset, the filter frame No. 2 releases the squeezing of the telescopic portion of the first elastic telescopic plate 22, and the telescopic portion of the first elastic telescopic plate 22 is reset by its own elastic force. When the filter frame No. 2 needs to be replaced later, the above-mentioned action is repeated. After the filter frame No. 1 is replaced, the catkins on it are cleaned by the exhaust fan 5, so as to improve the interception effect of the filter system on the catkins and ensure the ventilation volume of the filter system. After long-term use, the device can be shut down and the inside of the device can be cleaned.

[0045] Embodiment 2: Based on embodiment 1, Fig.10 and Fig.11 As shown, it also includes a boosting component, which is arranged in the connecting shell 501 and is used to change the flow area of ​​the connecting shell 501. The boosting component includes: mirror-distributed sliding plates 32, which are all slidably connected in the connecting shell 501, and the mirror-distributed sliding plates 32 are respectively located on both sides of the connecting shell 501. An elastic membrane is fixed between the side of the sliding plate 32 away from the exhaust duct 3 and the connecting shell 501.

[0046] In the above scheme, the two sliding plates 32 stretch the elastic membranes on each other when moving, so that the gas entering the connection shell 501 from the exhaust fan 5 is guided into between the two sliding plates 32 by the elastic membranes on the two sliding plates 32 .

[0047] like Fig.10 and Fig.11 As shown, the boost assembly also includes: a second electric push rod 33, fixed to the shell 1; a limit rod 34, slidably connected to the connecting shell 501, the limit rod 34 is fixed to the telescopic end of the second electric push rod 33, and the limit rod 34 is used to push the two sliding plates 32.

[0048] In the above solution, the second electric push rod 33 drives the sliding plate 32 to move through the limiting rod 34 , so that the two sliding plates 32 can be close to each other to reduce the flow area of ​​the connecting shell 501 .

[0049] like Figure 10-13 As shown, the boost assembly also includes: a second fixed shell 35 distributed in a mirror image, which is respectively fixed to the two sides of the connecting shell 501, a piston is sealingly and slidably connected in the second fixed shell 35, a second sliding rod 36 is sealingly and slidably connected in the second fixed shell 35, a plurality of flow holes are provided on the second sliding rod 36, and the second sliding rod 36 is fixedly connected to the adjacent sliding plate 32; two connecting rods 37, which are respectively sealed and slidably connected in adjacent second sliding rods 36, the connecting rods 37 pass through the adjacent sliding plates 32 and are limitedly and slidably connected to the adjacent sliding plates 32, a connecting block 38 with the same number of flow holes as the adjacent second sliding rod 36 is fixedly connected to the connecting rod 37, a guide hole is opened on the connecting block 38, and the connecting block 38 is used to reduce the flow area of ​​the flow holes on the adjacent second sliding rod 36.

[0050] In the above scheme, hydraulic oil is filled in the second fixed shell 35. When the second sliding rod 36 moves in the second fixed shell 35, the volume of the second sliding rod 36 in the second fixed shell 35 changes, so that the piston in the second fixed shell 35 moves synchronously with the movement of the second sliding rod 36. However, the piston in the second fixed shell 35 is always located in the second fixed shell 35. The flow volume of the guide hole on the connecting block 38 is smaller than the flow volume of the flow hole on the second sliding rod 36. When the second sliding rod 36 moves in a direction away from the piston in the adjacent second fixed shell 35, The hydraulic oil in the second fixed shell 35 flows through the flow hole on the second sliding rod 36. When the second sliding rod 36 moves toward the direction of the piston in the adjacent second fixed shell 35, the connecting block 38 remains stationary due to the resistance of the hydraulic oil in the second fixed shell 35. Then the second sliding rod 36 moves to make the connecting block 38 contact with the flow hole of the second sliding rod 36 and block the flow hole on the second sliding rod 36, so that the hydraulic oil in the second fixed shell 35 can only flow through the guide hole on the connecting block 38, thereby reducing the reset speed of the second sliding rod 36.

[0051] When the exhaust fan 5 performs back-blowing cleaning on the filter frame 12 adjacent to the connecting shell 501, the second electric push rod 33 is started, and the telescopic end of the second electric push rod 33 is first retracted and drives the limit rod 34 to move backward. The limit rod 34 moves backward and drives the sliding plate 32 on the front side to move. The sliding plate 32 drives the second sliding rod 36 and the connecting rod 37 thereon to move. At the same time, the elastic membrane between the sliding plate 32 and the connecting shell 501 is stretched. During the movement of the second sliding rod 36 and the connecting rod 37, the connecting rod 37 drives the adjacent connecting block 38 to move. The hydraulic oil in the second fixed shell 35 flows through the flow hole on the second sliding rod 36, and causes the piston in the second fixed shell 35 to move backward synchronously until the telescopic end of the second electric push rod 33 is fully retracted and stops. At this time, the two connecting rods 37 contact each other, and then the telescopic end of the second electric push rod 33 extends out and drives the limit rod 34 to move forward.

[0052] During the process of the limit rod 34 moving forward, the limit rod 34 releases the limit on the front sliding plate 32, and then the front sliding plate 32 moves forward under the action of the elastic membrane on it and the air pressure in the connecting shell 501, and the front sliding plate 32 moves forward to drive the second sliding rod 36 thereon to move forward. At this time, the hydraulic oil in the front second fixed shell 35 generates resistance to the movement of the adjacent connecting block 38, so that the connecting block 38 and the connecting rod 37 remain stationary, and the connecting rod 37 and the adjacent sliding plate 32 slide relative to each other. The second sliding rod 36 moves to make the connecting block 38 contact with the flow hole of the second sliding rod 36. The connecting block 38 blocks the flow hole on the second sliding rod 36, so that the hydraulic oil in the front second fixed shell 35 flows through the guide hole on the connecting block 38. Subsequently, under the push of the second sliding rod 36 on the connecting block 38, the connecting rod 37 and the connecting block 38 move forward synchronously, and drive the piston therein to move forward synchronously. Finally, the connecting block 38 is used to slow down the movement speed of the front second sliding rod 36, thereby slowing down the movement speed of the front sliding plate 32. After the limit rod 34 moves and resets, the telescopic end of the second electric push rod 33 continues to extend and drives the rear sliding plate 32 to move forward.

[0053] The rear sliding plate 32 moves forward, synchronously driving the second sliding rod 36 and the connecting rod 37 thereon to move forward (the action of the relevant parts when the rear sliding plate 32 is pushed by the limiting rod 34 is consistent with the action when the front sliding plate 32 is pushed by the limiting rod 34, but in the opposite direction). At this time, the front sliding plate 32 does not move to reset, so that when the rear sliding plate 32 moves forward, the connecting rod 37 thereon squeezes the front connecting rod 37, so that the front connecting rod 37 and the adjacent sliding plate 32 slide relative to each other, so that the front connecting rod 37 drives the adjacent connecting block 38 releases the blockage of the flow hole of the adjacent second sliding rod 36. At this time, the hydraulic oil in the front second fixed shell 35 can flow through the flow hole of the adjacent second sliding rod 36, so that the movement speed of the front sliding plate 32 is restored. Subsequently, under the continuous push of the rear connecting rod 37 on the front connecting rod 37, the two sliding plates 32 move forward synchronously, so that the air entering the connecting shell 501 is blown to the filter frame 12 adjacent to the connecting shell 501 through the two sliding plates 32, so that the air flow rate passing through the connecting shell 501 is increased, thereby increasing the cleaning effect of the catkins on the filter frame 12.

[0054] After the telescopic end of the second electric push rod 33 is fully extended, the front sliding plate 32 and related parts move to reset, and then the telescopic end of the second electric push rod 33 is retracted, and the limit rod 34 is driven to move backward, so that the limit rod 34 contacts the limit position of the rear sliding plate 32. At this time, the rear sliding plate 32 moves backward under the pressure of the air in the connecting shell 501 (the movement of the related parts when the rear sliding plate 32 is pushed by the pressure of the air in the connecting shell 501 is the same as the above-mentioned movement of the front sliding plate 32 by the pressure of the air in the connecting shell 501). The action is consistent with that when pushed by the pressure of air, but in the opposite direction). Then, after the limit rod 34 moves backward and resets, the telescopic end of the second electric push rod 33 continues to retract and drives the front sliding plate 32 to move backward, so that the front connecting rod 37 pushes the rear connecting rod 37 (the action here is consistent with the action of the rear connecting rod 37 pushing the front connecting rod 37 mentioned above, but in the opposite direction). Under the reciprocating movement of the limit rod 34, the two sliding plates 32 move back and forth to reciprocate and clean the catkins on the filter frame 12.

[0055] After the catkins on the filter frame 12 are cleaned, the telescopic end of the second electric push rod 33 moves and resets and drives the limit rod 34 to move and reset, and then the sliding plate 32 slowly resets under the action of the elastic membrane on it and the air pressure in the connecting shell 501 (the action here is consistent with the action of the air in the connecting shell 501 pushing the sliding plate 32 to move). When the catkins on the filter frame 12 are cleaned again, the above action is repeated.

[0056] In summary, the above are only preferred embodiments of the present invention and are not intended to limit the protection scope of the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A clean central air conditioning fresh air purification device, characterized in that: include: A shell (1), the shell (1) being fixedly connected to and in communication with an air inlet duct (2) and an air exhaust duct (3); A connecting shell (501) is fixedly connected to the shell (1), a rectangular shell (10) is fixedly connected to the shell (1), the rectangular shell (10) is slidably connected to a rectangular frame (11), and a first elastic member is fixedly connected between the two, the shell (1) is provided with a sliding track (14), a filter system is commonly provided between the rectangular frame (11) and the air inlet duct (2), on the sliding track (14), and between the air exhaust duct (3) and the connecting shell (501), the filter system is used to intercept floccules in the air, the filter system comprises three filter frames (12), the three filter frames (12) are slidably connected to the rectangular frame (11), the sliding track (14) and the connecting shell (501), the filter frames (12) are fixedly connected to a plurality of wave plates (13), and a plurality of spikes are fixedly connected to the wave plates (13); A first replacement component is arranged in the housing (1) and is used to replace the filter frame (12) adjacent to the rectangular frame (11).

2. A clean central air conditioning fresh air purification device according to claim 1, characterized in that: The first replacement assembly comprises: A first electric push rod (15) is fixedly connected to the housing (1), and a straight rod (16) is fixedly connected to the telescopic end of the first electric push rod (15); A guide rod (17) is fixedly connected to a side of the rectangular frame (11) close to the straight rod (16), and the straight rod (16) limits the position of the rectangular frame (11) by squeezing the guide rod (17); Three limit plates (18) are respectively fixed to one side of an adjacent filter frame (12) close to the first electric push rod (15); the telescopic end of the first electric push rod (15) limits the adjacent filter frame (12) through the adjacent limit plates (18).

3. A clean central air conditioning fresh air purification device according to claim 2, characterized in that: The first replacement assembly also includes: A limit block (19) is slidably connected to a side of the housing (1) close to the first electric push rod (15), and a second elastic member is fixedly connected between the two. A triangular groove is provided on a side of the filter frame (12) close to the limit plate (18), and the limit block (19) limits the adjacent filter frame (12) through the triangular groove of the adjacent filter frame (12); An electric slide rail (20) is installed in the housing (1); the filter frame (12) adjacent to the rectangular frame (11) slides on the electric slide rail (20); the electric slide rail (20) is slidably connected to an electric slider (21); a first elastic telescopic plate (22) is fixedly connected to a side of the electric slider (21) away from the first electric push rod (15); the telescopic portion of the first elastic telescopic plate (22) and the adjacent filter frame (12) are mutually limited; A second replacement component is arranged in the housing (1) and is used to replace the filter frame (12) adjacent to the connecting shell (501).

4. A clean central air conditioning fresh air purification device according to claim 3, characterized in that: The second replacement assembly comprises: A second elastic telescopic plate (23) is fixedly connected to the exhaust duct (3), the telescopic portion of the second elastic telescopic plate (23) and the adjacent filter frame (12) being mutually limited; An elastic telescopic rod (24) is fixedly connected to the housing (1); a limiting hole is provided on a side of the filter frame (12) away from the limiting plate (18); the telescopic end of the elastic telescopic rod (24) and the limiting hole of an adjacent filter frame (12) are mutually squeezed; a squeezing block (26) is fixedly connected to a side of the filter frame (12) away from the limiting plate (18); the squeezing block (26) is used to squeeze the limiting plates (18) of different filter frames (12); A return movement component is arranged on the electric slider (21) and is used to drive the filter frame (12) replaced by the connection shell (501) to move.

5. A clean central air conditioning fresh air purification device according to claim 4, characterized in that: The return assembly comprises: An elastic plate (28) is fixedly connected to the lower side of the electric slider (21), and a triangular protrusion is provided on the elastic plate (28); The limiting plate (18) is provided with a rectangular sliding groove, and the triangular protrusion of the elastic plate (28) limits the adjacent filtering frame (12) through the rectangular sliding groove of the adjacent limiting plate (18).

6. A clean central air conditioning fresh air purification device according to claim 5, characterized in that: The return assembly also includes: A first fixed shell (29) is fixedly connected to the housing (1); a first sliding rod (30) is sealingly and slidably connected inside the first fixed shell (29); a third elastic member is fixedly connected between the first sliding rod (30) and the electric slider (21); the first sliding rod (30) and the electric slider (21) are pressed against each other; A hydraulic telescopic rod (31) is fixedly connected in the housing (1); the sliding track (14) is slidably connected to the housing (1); a fourth elastic member is fixedly connected between the telescopic end of the hydraulic telescopic rod (31) and the sliding track (14); and an oil guide pipe is connected between the hydraulic telescopic rod (31) and the first fixed housing (29); The L-shaped track (1401) is fixedly connected to the housing (1), and the L-shaped track (1401) is in contact with the sliding track (14).

7. A clean central air conditioning fresh air purification device according to claim 3, characterized in that: Also includes: Two baffle plates (2001) distributed in a mirror image are respectively fixed to two sides of the electric slide rail (20), and the two baffle plates (2001) are used to block the filter frame (12).

8. A clean central air conditioning fresh air purification device according to claim 1, characterized in that: It also includes a booster assembly, which is arranged in the connection shell (501) and is used to change the flow area of ​​the connection shell (501), and the booster assembly includes: The mirror-distributed sliding plates (32) are all slidably connected in the connection shell (501), and the mirror-distributed sliding plates (32) are respectively located on both sides of the connection shell (501), and an elastic membrane is fixedly connected between the side of the sliding plate (32) away from the exhaust duct (3) and the connection shell (501).

9. A clean central air conditioning fresh air purification device according to claim 8, characterized in that: The booster assembly also includes: A second electric push rod (33) fixedly connected to the housing (1); A limit rod (34) is slidably connected to the connection shell (501), the limit rod (34) is fixedly connected to the telescopic end of the second electric push rod (33), and the limit rod (34) is used to push the two sliding plates (32).

10. A clean central air conditioning fresh air purification device according to claim 9, characterized in that: The booster assembly also includes: A second fixed shell (35) distributed in a mirror image is respectively fixed to two sides of the connecting shell (501), a piston is sealingly and slidably connected inside the second fixed shell (35), a second sliding rod (36) is sealingly and slidably connected inside the second fixed shell (35), a plurality of flow holes are provided on the second sliding rod (36), and the second sliding rod (36) is fixedly connected to the adjacent sliding plate (32); Two connecting rods (37) are respectively sealingly slidably connected in adjacent second sliding rods (36); the connecting rods (37) pass through adjacent sliding plates (32) and are limitedly slidably connected to adjacent sliding plates (32); a connecting block (38) having the same number of flow holes as that on the adjacent second sliding rod (36) is fixedly connected to the connecting rod (37); a flow guide hole is formed on the connecting block (38); and the connecting block (38) is used to reduce the flow area of ​​the flow holes on the adjacent second sliding rod (36).

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