CN210374020U

CN210374020U - Ventilation filter equipment for building

Info

Publication number: CN210374020U
Application number: CN201921452445.8U
Authority: CN
Inventors: 袁军团; 王继稳
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-09-03
Filing date: 2019-09-03
Publication date: 2020-04-21
Anticipated expiration: 2029-09-03

Abstract

The utility model belongs to the technical field of building ventilation, in particular to a ventilation and filtration device for buildings, which comprises a detection feedback system and a filtration system, wherein the filtration system comprises a shell, an air inlet pipe matched with an air inlet is arranged in the shell, the air inlet pipe is connected with a reversing pipe through a filter, and the reversing pipe is connected with a ventilation pipe; the shell is provided with an inspection opening matched with the filter, and the inspection opening is provided with a sealing cover matched with the inspection opening; outdoor air is detected through a sensor group of the detection feedback system, detected data are transmitted to the detection feedback controller, the detection feedback controller feeds back the detected data, when the detected data are within a certain preset detection range, the detection feedback controller controls the servo motor to rotate, the rotating disk rotates for a certain angle, the corresponding filtering holes are communicated with the air inlet pipe and the reversing pipe, and outdoor air filtering under the weather condition is achieved.

Description

Ventilation filter equipment for building

Technical Field

The utility model belongs to the technical field of the building ventilation, concretely relates to ventilation filter equipment for building.

Background

The ventilation and filtration device for the building generally adopts a pipeline type ventilation and filtration device, wherein an air inlet fan is used for supplying air at a ventilation opening, and the filtered air enters indoor rooms along a pipeline under the action of the air inlet fan, so that the purpose of indoor ventilation and air exchange is achieved, and the ventilation and filtration device has the advantages of attractive overall effect, good operation and control performance, reasonable layout and good ventilation and air purification effects on all rooms; however, because the outdoor air pollutants are different greatly under different weather conditions, the outdoor air is treated in a uniform mode, so that the waste and the loss of the filter element are easily caused, the filtering effect is obviously unsatisfactory, and the filtered air cannot achieve the effect of fresh indoor air.

Disclosure of Invention

In order to solve the unsatisfactory problem of outdoor air filter effect of pipeline formula ventilation filter equipment under to various weather conditions, the utility model provides a can effectively handle outdoor air under various weather conditions and filter and conveniently carry out the ventilation filter equipment for building that changes to the filter core.

Based on the above-mentioned purpose, the utility model discloses a following technical scheme realizes:

a ventilation filtering device for buildings comprises a detection feedback system and a filtering system, wherein the filtering system comprises a shell, an air inlet pipe matched with an air inlet is arranged in the shell, the air inlet pipe is connected with a reversing pipe through a filter, a ventilating pipe is connected to the reversing pipe, and a fan is arranged at the joint of the ventilating pipe and the reversing pipe; the shell is provided with an inspection opening, and the inspection opening is provided with a sealing cover matched with the inspection opening.

Preferably, the filter comprises a rotating disc, a rotating shaft is arranged in the center of the rotating disc, one end of the rotating shaft is connected with a rotating shaft bracket arranged on the air inlet pipe, and the other end of the rotating shaft is connected with a rotating shaft bracket arranged on the reversing pipe; a shaft gear is arranged at one end part of the rotating shaft and is connected with a servo motor arranged on the air inlet pipe through a transmission gear; four filter holes which are axisymmetric through the rotating disc are arranged on the rotating disc, and any filter hole is matched with the air inlet pipe and the reversing pipe; the transmission gear is provided with a transmission clamping groove which is matched with a movable clamping piece arranged on the air inlet pipe.

Preferably, all be equipped with the filter core draw-in groove on the filtration pore, the rotary disk side all is equipped with the filter core installing port, be equipped with on the filter core installing port with filter core installing port matched with filter core fixed cover, filter core fixed cover one end is connected with the rotary disk side through the torsion shaft that sets up in the rotary disk side, the filter core fixed cover other end is connected with the rotary disk side through torsion switch.

Preferably, the torsion switch comprises a movable buckle arranged on the side surface of the rotating disk, the movable buckle is matched with a torsion buckle arranged on the side surface of the filter element fixing cover, and the torsion buckle is rotationally connected with a torsion bulge arranged on the side surface of the filter element fixing cover.

Preferably, four fixed bayonets corresponding to the filter holes are arranged on the transmission clamping groove, and connecting lines between the center of the rotating disk and the center of the fixed bayonets pass through the centers of the filter holes corresponding to the fixed bayonets; one side of the fixed bayonet is vertical to the transmission clamping groove, the other side of the fixed bayonet is connected with the curved surface of the transmission clamping groove, and the vertical side of the fixed bayonet and the transmission clamping groove is consistent with the rotating direction of the rotating disk.

Preferably, the movable clamping piece comprises a fixing piece arranged on the air inlet pipe, a one-way clamping piece matched with the fixing piece is arranged on the fixing piece, and an L-shaped opening is formed in one side of the bottom end of the one-way clamping piece; one side of the fixed part is provided with a movable groove matched with the bottom end of the one-way clamping piece, the movable groove is arranged on one side of the rotating direction of the rotating disc, and the other side of the fixed part is matched with the L-shaped opening; one side of the one-way clamping piece is connected with a tension spring arranged on the air inlet pipe, and the tension spring is arranged on one side far away from the movable groove; the top end of the one-way clamping piece is matched with the fixed bayonet.

Preferably, the detection feedback system comprises a sensor group arranged in the air inlet pipe, and the detection feedback system also comprises a detection feedback controller matched with the sensor group, and the detection feedback controller is connected with the servo motor through a data line; the sensor group is arranged at one end of the air inlet pipe far away from the filter; the sensor group comprises an air quality sensor, a PM2.5 sensor, a PM10 sensor, a temperature and humidity sensor, an ozone sensor and a pollen sensor.

Preferably, the air inlet pipe and the reversing pipe are connected with a slide rail through a support frame, and the slide rail is matched with a slide way arranged on the bottom surface of the shell; the inspection opening is matched with the slide rail and the filter.

Preferably, the connection part of the reversing pipe and the ventilation pipe is provided with threads, and the reversing pipe and the ventilation pipe are connected through a sealing nut matched with the threads.

Compared with the prior art, the beneficial effects of the utility model are as follows:

(1) the device combines together through detecting feedback system and filtration system and realizes coping with the change of outdoor air in real time, adjusts different filter cores and carries out filtration, and the great degree has reduced the harm to the filter core under the different weather, can guarantee filtered air's cleanliness, can adapt to filtration under the multiple weather condition. The inspection port has the functions of inspecting the device and replacing the filter element, the sealing cover prevents the filtered air from overflowing, and the filtered air is ensured to enter the room along the direction of the pipeline; the filtered outdoor air is blown into the indoor room by using the air inlet fan, so that the active ventilation effect is achieved. The air inlet pipe, the reversing pipe and the side face of the rotating disc are sealed in a dynamic sealing mode, so that the sealing performance of the connecting part of the rotating disc, the air inlet pipe and the reversing pipe is guaranteed when the rotating disc rotates and is communicated, and air leakage is prevented.

(2) The rotary disk adapts to different air filtering requirements under different weather conditions through rotation, the rotary disk is connected with the transmission gear through the shaft gear at the end part of the rotary shaft, the transmission gear is connected with the servo motor, the effect of controlling the rotary disk to rotate to a proper position is achieved, and the filtering holes filter outdoor air. The transmission clamping groove is matched with the movable clamping piece, and the effect of preventing the rotating disc from rotating reversely is achieved. When the rotating disc is actually used, the size and the dimension of the rotating disc are determined according to actual requirements; the size of filtering the hole is adjusted according to the demand in order to realize outdoor air purification's speed, satisfies air purification's demand.

(3) The filter core passes through the filter core installing port and installs to the filter core draw-in groove, and the filter core fixed cover plays the effect of fixed filter core. The filter core all uses compound filter core, and every filters the hole and installs different types of compound filter core to this is fit for different weather conditions. The filter core can select for use the medium efficiency filter core, uses when PM2.5 is lower, the air is good, and this filter core can play the filtration to large granule dirt particle, decompose ozone equivalent effect. The filter core that filters more than high-medium efficiency can be chooseed for use to the filter core, uses when PM2.5 is higher, air drying, and this filter core can play filter, dust removal degerming etc. effect to PM 2.5. The filter element selects the filter element with higher middle efficiency, and can play the roles of filtering, dedusting, dehumidifying and the like for PM2.5 when PM2.5 is higher and air is humid. The filter element is a filter element with high middle efficiency, and can filter PM2.5, remove odor, and remove bacteria and dust when PM2.5 is high and air has odor. The filter element can adopt a mechanical filter screen type or an electrostatic electret filter screen type or other filter modes.

(4) The movable buckle and the torsion buckle are matched to conveniently and quickly fix the filter element fixing cover, and the torsion bulge plays a role in being connected with the torsion buckle in a rotating mode.

(5) The fixed bayonet corresponds different filtration holes, and the control of filtering the hole just can be realized just to the position of controlling fixed bayonet. The connecting line between the center of the rotating disk and the center of the fixed bayonet passes through the center of the filter hole corresponding to the fixed bayonet, and the relative fixation of the positions of the filter hole and the fixed bayonet is realized. One side of the fixed bayonet is vertical to the transmission clamping groove, and the other side of the fixed bayonet is connected with the curved surface of the transmission clamping groove, so that the effect of not influencing the rotation of the rotating disk can be achieved, and the fixed bayonet is matched with the movable clamping piece to prevent the rotating disk from reversing.

(6) Mutually support between mounting, one-way fastener, L type opening, the activity groove, the activity fastener can only be to the one side motion that is equipped with the activity groove, and unanimous with rotary disk direction of rotation, reaches and does not influence the rotatory effect of rotary disk, when the rotary disk reaches a certain position and need stop, servo motor stall, and one-way fastener top agrees with fixed bayonet socket, prevents that the rotary disk from reversing, and the extension spring plays the effect of pulling rotary disk to fixed bayonet socket.

The side surfaces of the culture rack protrude out of the side surfaces of the pulsation grooves, so that the culture rack and the pulsation grooves can be conveniently separated under stress.

(7) The sensor group detects the outdoor air, grasps the change of the outside air in real time, and when the outdoor air exceeds a set range, the detection feedback controller controls the servo motor to operate, the filter disc is rotated, and the corresponding filter element is used, so that the outdoor air is filtered under different weather conditions. The sensor group is arranged at one end of the air inlet pipe far away from the filter, so that the outdoor air can be more accurately detected, and various sensors realize the detection function of different substances.

(8) The air inlet pipe and the reversing pipe are connected with the sliding rail through the supporting frame, so that the air inlet pipe and the reversing pipe can move through the sliding rail and the sliding rail arranged on the bottom surface of the shell, equipment in the shell can be exposed outside through the inspection opening, and the effect of conveniently replacing the filter element is achieved.

(9) The screw thread matches with gland nut and is connected switching-over pipe and ventilation pipe, plays the sealed effect of junction, prevents the condition such as gas leakage.

To sum up, the utility model discloses a set up rotatable filter and can realize the filtration problem under different weather conditions, the device detects the outdoor air through the sensor group that detects feedback system, data transmission to detecting feedback controller detects, detecting feedback controller feeds back detection data, when detection data is in a certain predetermined detection range, detecting feedback controller control servo motor is rotatory, make the rotary disk rotate certain angle, corresponding filtration pore and air-supply line, the switching-over pipe communicates, under the effect of fan, realize the outdoor air filtration under this weather condition, the device can effectively filter the outdoor air of most of differences, can reduce because damage and the loss to the filter core under the different air conditions; the service life of the filter element can be prolonged, and the outdoor air can be effectively filtered.

Drawings

FIG. 1 is a schematic view of the structure of the inside part of the casing in embodiment 1;

FIG. 2 is a schematic view of the filter structure of example 1;

FIG. 3 is a schematic view of the construction of a transmission gear and a servo motor according to embodiment 1;

FIG. 4 is a schematic structural view of a drive card slot of embodiment 1;

FIG. 5 is a schematic view of the structure of the movable card in embodiment 1;

FIG. 6 is a schematic view of the construction of the one-way card member of embodiment 1;

fig. 7 is a schematic view of the structure of the fixing member of embodiment 1.

In the figure, 1, a ventilation pipe, 2, a sealing nut, 3, a reversing pipe, 4, a support frame, 5, a rotating shaft, 6, a rotating shaft support, 7, a rotating disc, 8, a filtering hole, 9, a shaft gear, 10, an air inlet pipe, 11, a sliding rail, 12, a sliding rail, 13, a filter element clamping groove, 14, a torsion switch, 15, a filter element fixing cover, 16, a torsion shaft, 17, a transmission shaft, 18, a transmission shaft support, 19, a transmission gear, 20, a transmission clamping groove, 21, a movable clamping piece, 22, a servo motor, 23, a fixing clamping opening, 24, a one-way clamping piece, 25, a tension spring, 26, a fixing piece, 27, an L-shaped opening, 28 and a movable groove.

Detailed Description

The present invention will be described in further detail with reference to the following specific examples, which are not intended to limit the scope of the present invention.

Example 1:

a ventilation filter unit for building, its structure is shown in fig. 1-7, including detecting the feedback system, also include the filtration system, the filtration system includes the outer casing, there is air inlet pipe 10 cooperating with air intake in the outer casing, the air inlet pipe 10 links with reversing pipe 3 through the filter, connect with the ventilating pipe 1 on the reversing pipe 3; the shell is provided with an inspection opening, and the inspection opening is provided with a sealing cover matched with the inspection opening. The air inlet pipe, the reversing pipe and the side face of the rotating disc are sealed in a dynamic sealing mode, the sealing performance of the connecting part of the rotating disc, the air inlet pipe and the reversing pipe is guaranteed when the rotating disc rotates and is communicated, air leakage is prevented, and the air inlet pipe, the reversing pipe and the rotating disc are not shown in the attached drawings due to the adoption of the existing dynamic sealing technology.

The filter comprises a rotating disc 7, a rotating shaft 5 is arranged in the center of the rotating disc 7, one end of the rotating shaft 5 is connected with a rotating shaft bracket 6 arranged on the air inlet pipe 10, and the other end of the rotating shaft 5 is connected with the rotating shaft bracket 6 arranged on the reversing pipe 3; a shaft gear 9 is arranged at one end part of the rotating shaft 5, and the shaft gear 9 is connected with a servo motor 22 arranged on the air inlet pipe 10 through a transmission gear 19; four filter holes 8 which are axisymmetric through the rotating disc 7 are arranged on the rotating disc 7, and any filter hole 8 is matched with the air inlet pipe 10 and the reversing pipe 3; the transmission gear 19 is provided with a transmission clamping groove 20, and the transmission clamping groove 20 is matched with a movable clamping piece 21 arranged on the air inlet pipe 10. The filter holes 8 are provided with filter element clamping grooves 13, the side faces of the rotary discs 7 are provided with filter element mounting openings, the filter element mounting openings are provided with filter element fixing covers 15 matched with the filter element mounting openings, one ends of the filter element fixing covers 15 are connected with the side faces of the rotary discs 7 through torsion shafts 16 arranged on the side faces of the rotary discs 7, the other ends of the filter element fixing covers 15 are connected with the side faces of the rotary discs 7 through torsion switches 14, and the size and the dimension of the rotary discs are determined according to actual requirements when the rotary discs are actually used; the size of filtering the hole is adjusted according to the demand in order to realize outdoor air purification's speed, satisfies air purification's demand. The torsion switch 14 comprises a movable buckle arranged on the side surface of the rotating disk 7, the movable buckle is matched with a torsion buckle arranged on the side surface of the filter element fixing cover 15, and the torsion buckle is rotationally connected with a torsion bulge arranged on the side surface of the filter element fixing cover.

Four fixed bayonets 23 corresponding to the filter holes 8 are arranged on the transmission clamping groove 20, and connecting lines between the center of the rotating disk 7 and the centers of the fixed bayonets 23 pass through the centers of the filter holes 8 corresponding to the fixed bayonets 23; one side of the fixed bayonet 23 is vertical to the transmission clamping groove 20, the other side of the fixed bayonet 23 is connected with the curved surface of the transmission clamping groove 20, and the vertical side of the fixed bayonet 23 and the transmission clamping groove 20 is consistent with the rotating direction of the rotating disk 7. The movable clamping piece 21 comprises a fixing piece 26 arranged on the air inlet pipe 10, a one-way clamping piece 24 matched with the fixing piece 26 is arranged on the fixing piece 26, and an L-shaped opening 27 is formed in one side of the bottom end of the one-way clamping piece 24; one side of the fixed part 26 is provided with a movable groove 28 matched with the bottom end of the one-way clamping piece 27, the movable groove 28 is arranged on one side of the rotating direction of the rotating disc 7, and the other side of the fixed part 26 is matched with the L-shaped opening 27; one side of the one-way clamping piece 24 is connected with a tension spring 25 arranged on the air inlet pipe 10, and the tension spring 25 is arranged on one side far away from the movable groove 28; the top end of the one-way clamping piece 24 is matched with the fixed bayonet 23. The air inlet pipe 10 and the reversing pipe 3 are both connected with a slide rail 11 through a support frame 4, and the slide rail 11 is matched with a slide way 12 arranged on the bottom surface of the shell; the inspection opening is matched with the slide rail 11 and the filter. The connection part of the reversing pipe 3 and the ventilation pipe 1 is provided with threads, and the reversing pipe 3 and the ventilation pipe 1 are connected through a sealing nut 2 matched with the threads; a fan is arranged at the joint of the ventilation pipe 1 and the reversing pipe 3.

The detection feedback system comprises a sensor group arranged in the air inlet pipe 10, and also comprises a detection feedback controller matched with the sensor group, and the detection feedback controller is connected with the servo motor 22 through a data line; the sensor group is arranged at one end of the air inlet pipe 10 far away from the filter; the sensor group comprises an air quality sensor, a PM2.5 sensor, a PM10 sensor, a temperature and humidity sensor, an ozone sensor and a pollen sensor.

When the air purifier is used, the air inlet fan is opened, filtered fresh air is fed into the air purifier, positive pressure is formed indoors, and indoor polluted air is discharged outdoors through the door and window gap under the action of pressure difference. When outdoor air enters the air inlet pipe 10 through the air inlet, the sensor group in the air inlet pipe 10 detects the outdoor air, a detection result is transmitted to the detection feedback controller, the detection feedback controller is matched with a proper filter core according to the detection result, the detection feedback controller controls the servo motor 22 to rotate for a certain angle, the servo motor 22 drives the transmission shaft 17 to move on the transmission shaft support 18, the transmission gear 19 rotates together, the shaft gear 9 meshed with the transmission gear 19 drives the rotating shaft 5 to rotate on the rotating shaft support 6, the rotating disc 7 rotates along with the rotating shaft 5, when the servo motor 22 rotates to a specified angle, the rotating disc stops rotating, and at the moment, the filter hole 8 is communicated with the air inlet pipe 10 and the reversing pipe 3. When the transmission gear 19 rotates, the movable clamping piece 21 is driven to slide on the transmission clamping groove 20, at the moment, the one-way clamping piece 24 inclines along the movable groove 28 on one side of the fixing piece 26, after the servo motor 22 stops rotating, the one-way clamping piece 24 is pulled to the fixed bayonet 23 under the action of the tension spring 25, and the L-shaped opening 27 is clamped on the other side of the fixing piece 26, so that the movable clamping piece 21 can only incline towards one side of the movable groove 28, the transmission clamping groove 20 can be prevented from reversing, and the stability of the rotating disk 7 can be ensured. Outdoor air is filtered through a filter element with a proper filter hole 8, is conducted to the ventilation pipe 1 through the reversing pipe 3, enters the room, and replaces indoor dirty air. When indoor air needs to be replaced quickly, the air inlet fan on the ventilation pipe 1 can be turned on, and the air inlet speed of the block is increased.

When the filter element needs to be replaced, the sealing nut 2 is rotated to separate the ventilation pipe 1 from the reversing pipe 3, and the reversing pipe 3 is pulled, so that the sliding rail 11 arranged at the bottom end of the support frame 4 in the shell slides out along the slide rail 12 through the inspection opening and slides to a proper position to replace the filter element. The filter core change needs to turn round the torsion buckle on the torsion switch 14, opens the fixed lid 15 of filter core, and the fixed lid 15 of filter core rotates around the axle 16 of twisting, installs the filter core to filter core draw-in groove 13 through the filter core installing port on, closes the fixed filter core of the fixed lid 15 of filter core, twists the torsion buckle on the torsion switch 14, carries out the locking to the torsion switch. After the replacement is completed, the device in the housing is returned according to the method.

Example 2:

a ventilation filter device for buildings is different from the ventilation filter device of the embodiment 1 in that: the transmission gear 19 is not provided with a transmission clamping groove 20, and the air inlet pipe 10 is not provided with a movable clamping piece 21.

When the air purifier is used, the air inlet fan is opened, filtered fresh air is fed into the air purifier, positive pressure is formed indoors, and indoor polluted air is discharged outdoors through the door and window gap under the action of pressure difference. When outdoor air enters the air inlet pipe 10 through the air inlet, the sensor group in the air inlet pipe 10 detects the outdoor air, a detection result is transmitted to the detection feedback controller, the detection feedback controller is matched with a proper filter core according to the detection result, the detection feedback controller controls the servo motor 22 to rotate for a certain angle, the servo motor 22 drives the transmission shaft 17 to move on the transmission shaft support 18, the transmission gear 19 rotates together, the shaft gear 9 meshed with the transmission gear 19 drives the rotating shaft 5 to rotate on the rotating shaft support 6, the rotating disc 7 rotates along with the rotating shaft 5, when the servo motor 22 rotates to a specified angle, the rotating disc stops rotating, and at the moment, the filter hole 8 is communicated with the air inlet pipe 10 and the reversing pipe 3. Outdoor air is filtered through a filter element with a proper filter hole 8, is conducted to the ventilation pipe 1 through the reversing pipe 3, enters the room, and replaces indoor dirty air. When indoor air needs to be replaced quickly, the air inlet fan on the ventilation pipe 1 can be turned on, and the air inlet speed of the block is increased.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the present invention, but rather as the following description is intended to cover all modifications, equivalents and improvements falling within the spirit and scope of the present invention.

Claims

1. A ventilation filter device for buildings comprises a detection feedback system and a filter system, and is characterized in that the filter system comprises a shell, an air inlet pipe matched with an air inlet is arranged in the shell, the air inlet pipe is connected with a reversing pipe through a filter, a ventilation pipe is connected to the reversing pipe, and a fan is arranged at the joint of the ventilation pipe and the reversing pipe; the shell is provided with an inspection opening, and the inspection opening is provided with a sealing cover matched with the inspection opening.

2. The architectural ventilation filtering device according to claim 1, wherein said filter comprises a rotating disk having a rotating shaft at the center thereof, one end of the rotating shaft being connected to a rotating shaft holder provided on the air inlet duct, and the other end of the rotating shaft being connected to a rotating shaft holder provided on the reversing duct; a shaft gear is arranged at one end of the rotating shaft and is connected with a servo motor arranged on the air inlet pipe through a transmission gear; four filter holes which are axisymmetric through the rotating disc are arranged on the rotating disc, and any filter hole is matched with the air inlet pipe and the reversing pipe; the transmission gear is provided with a transmission clamping groove which is matched with a movable clamping piece arranged on the air inlet pipe.

3. The architectural ventilation filter device according to claim 2, wherein the filter holes are provided with filter element slots, the side surfaces of the rotating disks are provided with filter element mounting openings, the filter element mounting openings are provided with filter element fixing covers matched with the filter element mounting openings, one ends of the filter element fixing covers are connected with the side surfaces of the rotating disks through torsion shafts arranged on the side surfaces of the rotating disks, and the other ends of the filter element fixing covers are connected with the side surfaces of the rotating disks through torsion switches.

4. The architectural ventilation filtering device according to claim 3, wherein said twist switch comprises a movable catch provided on a side of the rotating disk, the movable catch cooperating with a twist catch provided on a side of the cartridge retaining cover, the twist catch being rotatably coupled with a twist projection provided on a side of the cartridge retaining cover.

5. The architectural ventilation and filtration device of claim 2, wherein the transmission slot is provided with four fixed bayonets corresponding to the filtration holes, and a connecting line between the center of the rotating disk and the center of the fixed bayonets passes through the center of the filtration holes corresponding to the fixed bayonets; one side of the fixed bayonet is vertical to the transmission clamping groove, the other side of the fixed bayonet is connected with the curved surface of the transmission clamping groove, and the vertical side of the fixed bayonet and the transmission clamping groove is consistent with the rotating direction of the rotating disk.

6. The architectural ventilation filter unit of claim 5, wherein the movable clip comprises a fixed member disposed on the air inlet duct, the fixed member is provided with a one-way clip cooperating with the fixed member, and one side of the bottom end of the one-way clip is provided with an L-shaped opening; one side of the fixed part is provided with a movable groove matched with the bottom end of the one-way clamping piece, the movable groove is arranged on one side of the rotating direction of the rotating disc, and the other side of the fixed part is matched with the L-shaped opening; one side of the one-way clamping piece is connected with a tension spring arranged on the air inlet pipe, and the tension spring is arranged on one side far away from the movable groove; the top end of the one-way clamping piece is matched with the fixed bayonet.

7. The architectural ventilation filter device of claim 6, wherein the detection feedback system comprises a sensor group disposed in the air intake duct, the detection feedback system further comprises a detection feedback controller cooperating with the sensor group, the detection feedback controller is connected to the servo motor through a data line; the sensor group is arranged at one end of the air inlet pipe far away from the filter; the sensor group comprises an air quality sensor, a PM2.5 sensor, a PM10 sensor, a temperature and humidity sensor, an ozone sensor and a pollen sensor.

8. The architectural ventilation filter unit of claim 7, wherein the air inlet pipe and the reversing pipe are connected with a slide rail through a support frame, and the slide rail is matched with a slide rail arranged on the bottom surface of the housing; the inspection opening is matched with the sliding rail and the filter.

9. The ventilation filter device for building of claim 8, wherein the connection part of the reversing pipe and the ventilation pipe is provided with threads, and the reversing pipe and the ventilation pipe are connected through a sealing nut matched with the threads.