Fresh air device for building

Abstract

The invention discloses a fresh air device for buildings, and relates to the technical field of fresh air, the fresh air device comprises an air bellow, an air outlet is formed in the air bellow, a ventilation mechanism is fixedly mounted on the inner wall of the air outlet, an ultraviolet germicidal lamp fixedly penetrates through the inner wall of the air bellow, and an air heater fixedly penetrates through the bottom of the air bellow; an air inlet pipeline fixedly penetrates through the face, away from the air outlet, of the air bellow, and a hole groove is formed in the top of the air inlet pipeline. Wherein the purifying device comprises a carrying frame, a purifying plate, a limiting block, a first elastic piece, a cylindrical rod, a partition plate, a connecting plate, a second elastic piece and a limiting rod, when the purifying plate is disassembled, the partition plate is used for blocking the air inlet pipeline, and the situation that dust particles in air move into the air box in the disassembling process, and consequently the internal environment is polluted is avoided.

Description

Technical Field

[0001] The invention relates to the technical field of fresh air, in particular to a fresh air device for buildings. Background Art

[0002] The fresh air device for buildings is a device specially designed to improve indoor air quality. It aims to ensure that the air entering the room is fresh and healthy through high-efficiency fresh air.

[0003] The patent with patent announcement number CN219494306U relates to a fresh air filtering device, which relates to the field of fresh air filtering technology, including a static pressure box, wherein connecting ends and wall components are respectively installed on both sides of the static pressure box, and wind inlet rainproof louvers are arranged on the wall components. It also includes a first filter plate, a second filter plate and a cleaning part. The first filter plate is used for preliminary filtering of larger dust particles in the fresh air, and the second filter plate is used for filtering fine dust particles in the fresh air. The cleaning part is installed between the first filter plate and the second filter plate, and is used for simultaneously cleaning the dust particles on the first filter plate and the second filter plate. Compared with the problem that the prior art is not convenient for simultaneously cleaning the dust on the two filter plates, the fresh air filtering device is convenient for filtering the dust particles in the fresh air through the first filter plate and the second filter plate, and is convenient for simultaneously cleaning the dust particles on the first filter plate and the second filter plate through the cleaning part, thereby improving the filtering efficiency of the fresh air.

[0004] The above patent has the function of cleaning the dust on the two filter plates at the same time. By installing the cleaning part between the first filter plate and the second filter plate, the cleaning part can clean the dust particles on the first filter plate and the second filter plate at the same time, thereby effectively maintaining the filtering effect of the first filter plate and the second filter plate, reducing the frequency of replacing the filter plates, and reducing maintenance costs. However, when replacing the filter plates, the filter plates need to be pulled out of the static pressure box. When the operator fails to close the air outlet in time, unpurified air will directly enter the room. Due to the entry of unfiltered air, other components of the filtration system accumulate dust and dirt faster, thereby increasing subsequent cleaning and maintenance costs. Summary of the invention

[0005] In view of the deficiencies in the prior art, the present invention provides a fresh air device for buildings, which solves the problems raised in the above-mentioned background technology.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: a fresh air device for a building, comprising a bellows, an air outlet is provided inside the bellows, a ventilation mechanism is fixedly installed on the inner wall of the air outlet, an ultraviolet sterilization lamp is fixedly penetrated through the inner wall of the bellows, an air heater is fixedly penetrated through the bottom of the bellows, an air inlet duct is fixedly penetrated through the side of the bellows away from the air outlet, a hole groove is provided on the top of the air inlet duct, and also includes a purification device; wherein, the purification device includes a mounting frame, a purification plate, a limit block, a No. 1 spring piece, a cylindrical rod, a partition plate, a connecting plate, a No. 2 spring piece and a limit rod, the ventilation mechanism is opened to allow air to move from the air inlet duct toward the air outlet, and the air passes through the purification plate while moving, so that the purification plate purifies the air, the mounting frame is fixedly penetrated At the top of the air inlet duct, the purification plate is slidably installed on the inner wall of the mounting frame, the limit block slides through the side of the purification plate close to the bellows, the No. 1 spring piece is arranged between the limit block and the purification plate, the cylindrical rod is fixedly installed on the side of the purification plate away from the limit block, the partition is slidably installed on the inner wall of the mounting frame, the connecting plate slides through the inner and outer walls of the partition, the No. 2 spring piece is arranged between the connecting plate and the partition, the limit rod is fixedly installed on the side of the connecting plate away from the partition, the limit rod slides through the inner and outer walls of the partition, a rectangular groove is provided on one side of the mounting frame close to the limit block, the limit block contacts the inner wall of the rectangular groove, the limit block separates from the contact surface of the rectangular groove during movement, so that the limit imposed on the purification plate by the mounting frame is released, and the size of the cylindrical rod is adapted to the hole groove.

[0007] According to the above technical solution, a circular hole is opened on one side of the carrying frame close to the limiting rod, and the circumferential surface of the limiting rod contacts the inner wall of the circular hole. The limiting rod separates from the surface in contact with the circular hole during movement, so that the limiting effect of the carrying frame on the partition is released.

[0008] According to the above technical solution, a slope 1 is provided at the bottom of the partition, and an arc surface 1 is provided on the side of the limit block away from the No. 1 spring sheet. The slope 1 of the partition contacts the arc surface 1 of the limit block during movement, and the movement of the slope 1 applies thrust to the arc surface 1.

[0009] According to the above technical scheme, it also includes a disassembly device and a stabilizing device; the disassembly device includes a hollow plate, a lifting plate, a No. 1 spring, an arc plate, a butt plate, a friction plate, a No. 3 spring sheet and a contact plate, the arc plate moves to drive the lifting plate to move downward, the lifting plate moves to stretch the No. 1 spring, and the No. 1 spring is deformed by the stretching, the hollow plate is fixedly installed on the inner wall of the air inlet duct, the lifting plate is slidably installed on the inner wall of the hollow plate, the No. 1 spring is arranged between the lifting plate and the hollow plate, the arc plate is fixedly installed on a side of the lifting plate close to the cylindrical rod, the butt plate is fixedly installed on a side of the lifting plate close to the arc plate, the friction plate slides through a side of the lifting plate away from the butt plate, the No. 3 spring sheet is arranged between the friction plate and the lifting plate, the contact plate is fixedly installed on the inner wall of the hollow plate, the arc plate contacts the circumferential surface of the cylindrical rod, the lifting plate moves to drive the arc plate to move upward, the arc plate moves to apply an upward thrust to the cylindrical rod, and the cylindrical rod moves upward under the influence of the thrust.

[0010] According to the above technical solution, the friction plate itself is elastic, and a side of the friction plate away from the third spring sheet is provided with corrugations. The deformed third spring sheet exerts a reaction force on the friction plate, and the corrugations of the friction plate are affected by the reaction force and fit tightly with the contact plate.

[0011] According to the above technical solution, a second inclined surface is provided on the side of the support plate away from the lifting plate, and a second arc surface is provided on the bottom of the contact plate. The friction plate contacts the second arc surface of the contact plate during movement, and the friction plate moves toward the direction of the third spring piece under the influence of the second arc surface.

[0012] The cam is fixedly mounted on a side of the sliding plate close to the abutment plate, the push block is slidably mounted on the side of the sliding plate away from the Z-shaped piece, the No. 2 spring is arranged between the push block and the sliding plate, the knock block is fixedly mounted on the inner wall of the push block, the T-shaped rod is fixedly mounted on the inner wall of the sliding plate, the Z-shaped piece is fixedly mounted on the side of the sliding plate close to the abutment plate, the push block is slidably mounted on the inner wall of the sliding plate away from the Z-shaped piece, the No. 2 spring is arranged between the push block and the sliding plate, the knock block is fixedly mounted on the inner wall of the push block, the T-shaped rod is fixedly mounted on the inner wall of the sliding plate, the Z-shaped piece itself is elastic, and an arc surface three is provided on a side of the linkage block away from the sliding plate, the arc surface three contacts the abutment plate, the inclined surface two of the abutment plate moves downward and contacts the arc surface three of the linkage block, the inclined surface two applies pressure to the arc surface three, the linkage block moves in the direction of the push block under the influence of the pressure, and the push block contacts the purification plate.

[0013] According to the above technical solution, a curved surface four is provided on one side of the knocking block close to the T-shaped rod. The T-shaped rod itself is elastic. The T-shaped rod contacts the curved surface four of the knocking block during movement. The curved surface four applies resistance to the moving T-shaped rod, causing the moving T-shaped rod to be deformed by the influence of the curved surface four.

[0014] The present invention provides a fresh air device for a building, which has the following beneficial effects: (1) In the fresh air device used in the building, the contact surface between the limit block and the rectangular groove is separated, so that the limit imposed on the purification board by the mounting frame is released. By pushing the partition to move, the limit imposed on the purification board is automatically released, ensuring that the operator can quickly and conveniently take out the purification board for replacement after standardized operation, thereby improving the replacement efficiency. The partition is in contact with the bottom of the inner wall of the air inlet duct, so that the partition blocks the inside of the air inlet duct. When removing the purification board, the air inlet duct is first blocked with the partition to prevent dust particles in the air from moving into the inside of the bellows during the removal process, causing pollution to the internal environment.

[0015] (2) In the fresh air device used in this building, the speed of movement of the friction plate is slowed down by the friction force. The arc plate actively pushes the cylindrical rod upward, which makes it convenient for operators to quickly remove the purification plate. At the same time, when the lifting plate moves to the designated area, it is slowed down by the additional resistance, which helps to improve the safety of disassembly. The friction generated by the corrugated movement and the contact plate disappears, so that the additional resistance encountered by the lifting plate is gradually reduced. When installing the purification plate, the friction plate and the contact plate are automatically separated, which slows down the resistance encountered during installation and reduces the wear on the friction plate, extending its service life.

[0016] (3) In the fresh air device used in the building, the knocking block transmits continuous vibration to the purification board, making the purification board move more smoothly. The knocking block transmits the continuous vibration generated by the collision to the purification board to prevent dust particles from accumulating at the connection between the purification board and the mounting frame, causing the purification board to get stuck or stuck when moving upward. The push block applies thrust to the purification board, and the purification board is tightly fitted with the mounting frame under the influence of the thrust. The push block applies thrust to the purification board being installed, so that the purification board and the mounting frame are tightly fitted, thereby effectively improving the stability of the purification board after installation and improving the stability of air purification. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the internal structure of the bellows of the present invention; Figure 3 This is a schematic diagram of the internal structure of the air inlet duct of the present invention; Figure 4 For the present invention Figure 3 The enlarged structural diagram at A in the middle; Figure 5 It is a schematic diagram of the internal structure of the purification device of the present invention; Figure 6 This is a schematic diagram of the internal structure of the disassembly device of the present invention; Figure 7 This is a schematic diagram of the internal structure of the stabilizing device of the present invention; Figure 8 For the present invention Figure 7 Enlarged structural diagram at B in the middle.

[0018] In the figure: 1. bellows; 2. ventilation mechanism; 3. ultraviolet germicidal lamp; 4. air heater; 5. air inlet duct; 6. carrying frame; 7. purification plate; 8. limit block; 9. No. 1 spring; 10. cylindrical rod; 11. partition; 12. connecting plate; 13. No. 2 spring; 14. limit rod; 151. hollow plate; 152. lifting plate; 153. No. 1 spring; 154. arc plate; 155. abutment plate; 156. friction plate; 157. No. 3 spring; 158. contact plate; 161. fixed frame; 162. sliding plate; 163. Z-shaped plate; 164. linkage block; 165. push block; 166. No. 2 spring; 167. knocking block; 168. T-shaped rod. DETAILED DESCRIPTION

[0019] 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.

[0020] See also Figure 1-Figure 8, one embodiment of the present invention is: a fresh air device for a building, comprising a bellows 1, an air outlet is provided inside the bellows 1, a ventilation mechanism 2 is fixedly installed on the inner wall of the air outlet, an ultraviolet sterilization lamp 3 is fixedly penetrated on the inner wall of the bellows 1, an air heater 4 is fixedly penetrated on the bottom of the bellows 1, an air inlet duct 5 is fixedly penetrated on the side of the bellows 1 away from the air outlet, a hole groove is provided on the top of the air inlet duct 5, and a purification device is also included; wherein the purification device comprises a mounting frame 6, a purification plate 7, a limiting block 8, a first spring piece 9, a cylindrical rod 10, a partition 11, a connecting plate 12, a second spring piece 13 and a limiting rod 14, the mounting frame 6 is fixedly penetrated on the top of the air inlet duct 5, the purification plate 7 is slidably installed on the inner wall of the mounting frame 6, the limiting block 8 slides through the side of the purification plate 7 close to the bellows 1, the first spring piece 9 is arranged between the limiting block 8 and the purification plate 7, the cylindrical rod 10, the partition 11, the connecting plate 12, the second spring piece 13 and the ... The column rod 10 is fixedly mounted on the side of the purification plate 7 away from the limit block 8, the partition 11 is slidably mounted on the inner wall of the mounting frame 6, the connecting plate 12 slides through the inner and outer walls of the partition 11, and the No. 2 spring piece 13 is arranged between the connecting plate 12 and the partition 11. The limit rod 14 is fixedly mounted on the side of the connecting plate 12 away from the partition 11, and the limit rod 14 slides through the inner and outer walls of the partition 11. A rectangular groove is provided on the side of the mounting frame 6 close to the limit block 8, and the limit block 8 contacts the inner wall of the rectangular groove. The size of the cylindrical rod 10 is adapted to the hole groove. The purification plate 7 can be a filter plate for filtering particles in the air, or it can be an activated carbon plate for absorbing odors and germs in the air. When disassembling the purification plate 7, the air inlet duct 5 is first blocked with the partition 11 to prevent dust particles in the air from moving to the inside of the bellows 1 during the disassembly process, causing pollution to the internal environment.

[0021] A circular hole is provided on one side of the mounting frame 6 close to the limiting rod 14. The circumferential surface of the limiting rod 14 contacts the inner wall of the circular hole. By pushing the partition 11 to move, the limitation of the purification plate 7 is automatically released, ensuring that the operator can quickly and conveniently take out the purification plate 7 for replacement after standardized operation, thereby improving the efficiency of replacement.

[0022] A slope 1 is provided at the bottom of the partition 11, and an arc surface 1 is provided on the side of the limit block 8 away from the No. 1 spring piece 9. By providing the slope 1 and the arc surface 1, when the partition 11 contacts the limit block 8, the partition 11 can smoothly push the limit block 8 to move, thereby improving the working stability.

[0023] When the present embodiment is working, the ultraviolet germicidal lamp 3 is turned on before ventilation, and then the ventilation mechanism 2 is turned on, so that the air moves from the air inlet duct 5 to the air outlet direction. The air passes through the purification plate 7 while moving, so that the purification plate 7 purifies the air. At the same time, the ultraviolet germicidal lamp 3 sterilizes the flowing air. When the air temperature needs to be adjusted, the air heater 4 is started to adjust it. When the purification plate 7 is replaced, the connecting plate 12 is first pushed to move in the direction of the second spring piece 13. The connecting plate 12 moves to squeeze the second spring piece 13. The second spring piece 13 is squeezed and deformed. At the same time, the connecting plate 12 moves to drive the limit rod 14 to move in the direction of the partition 11. The limit rod 1 4 is separated from the surface in contact with the circular hole during the movement, so that the limit imposed by the mounting frame 6 on the partition 11 is released, pushing the connecting plate 12 to move downward, the movement of the connecting plate 12 drives the limit rod 14 to move downward, and at the same time, the movement of the connecting plate 12 drives the partition 11 to move downward, and the partition 11 contacts the bottom of the inner wall of the air inlet duct 5 during the movement, so that the partition 11 blocks the inside of the air inlet duct 5 to prevent air from entering the inside of the bellows 1, and the connecting plate 12 is released, and the deformed second spring piece 13 is restored to drive the connecting plate 12 to move away from the partition 11, and the movement of the connecting plate 12 drives the limit rod 14 to move away from the partition 11, and the limit rod 14 moves The inner wall of the circular hole is in contact with the neutral position, so that the carrier 6 applies a limit to the movement of the partition 11. When the purification plate 7 is disassembled, the air inlet duct 5 is first blocked with the partition 11 to prevent dust particles in the air from moving into the interior of the bellows 1 during the disassembly process, causing pollution to the internal environment. The inclined surface 1 of the partition 11 contacts the arc surface 1 of the limit block 8 during the movement. The movement of the inclined surface applies a thrust to the arc surface 1. The limit block 8 is affected by the thrust and moves in the direction of the No. 1 spring piece 9. The limit block 8 moves and squeezes the No. 1 spring piece 9. The No. 1 spring piece 9 is squeezed and deformed. At the same time, the limit block 8 is separated from the surface in contact with the rectangular groove during the movement, so that the limit imposed by the carrier 6 on the purification plate 7 is released. In addition, when the partition 11 blocks the inside of the air inlet duct 5, the purification plate 7 is pulled to move upward, and the movement of the purification plate 7 drives the cylindrical rod 10 to move upward. The cylindrical rod 10 passes through the hole groove during the movement. At the same time, the movement of the purification plate 7 drives the limit block 8 to move upward. The arc surface 1 contacts the inner wall of the mounting frame 6 during the movement. The limit block 8 continues to move and separates from the contact surface of the mounting frame 6, so that the deformed spring piece 9 No. 1 is restored to drive the limit block 8 to move to the initial position. By pushing the partition 11 to move, the limit of the purification plate 7 is automatically released, ensuring that the operator can quickly and conveniently take out the purification plate 7 for replacement after standardized operation, thereby improving the replacement efficiency.

[0024] See also Figure 1-Figure 8On the basis of the above embodiment, another embodiment of the present invention further includes a disassembly device and a stabilizing device; the disassembly device includes a hollow plate 151, a lifting plate 152, a No. 1 spring 153, an arc plate 154, a stop plate 155, a friction plate 156, a No. 3 spring 157 and a contact plate 158, the hollow plate 151 is fixedly mounted on the inner wall of the air inlet duct 5, the lifting plate 152 is slidably mounted on the inner wall of the hollow plate 151, the No. 1 spring 153 is arranged between the lifting plate 152 and the hollow plate 151, and the arc plate 154 is fixedly mounted on the lifting plate 15 2 is close to the cylindrical rod 10, the push plate 155 is fixedly installed on the side of the lifting plate 152 close to the arc plate 154, the friction plate 156 slides through the side of the lifting plate 152 away from the push plate 155, the third spring piece 157 is arranged between the friction plate 156 and the lifting plate 152, the contact plate 158 is fixedly installed on the inner wall of the hollow plate 151, the arc plate 154 contacts the circumferential surface of the cylindrical rod 10, and the cylindrical rod 10 is actively pushed upward by the arc plate 154, so that the operator can quickly take out the purification plate 7 and improve the efficiency of disassembling the purification plate 7.

[0025] The friction plate 156 itself is elastic, and a corrugation is provided on a side of the friction plate 156 away from the third spring piece 157. When the lifting plate 152 moves to a designated area, it is decelerated by the additional resistance, thus avoiding collision caused by pushing too fast, which helps to improve the safety of disassembly.

[0026] A second inclined surface is provided on one side of the abutment plate 155 away from the lifting plate 152, and a second curved surface is provided on the bottom of the contact plate 158. When the purification plate 7 is installed, the friction plate 156 and the contact plate 158 are automatically separated, which reduces the resistance encountered during the installation and reduces the wear on the friction plate 156, thereby extending its service life.

[0027] The stabilizing device includes a fixing frame 161, a sliding plate 162, a Z-shaped piece 163, a linkage block 164, a push block 165, a second spring 166, a knock block 167 and a T-shaped rod 168. The fixing frame 161 is fixedly mounted on the bottom of the inner wall of the air inlet duct 5, the sliding plate 162 slides through the inner and outer walls of the fixing frame 161, the Z-shaped piece 163 is arranged between the sliding plate 162 and the fixing frame 161, the linkage block 164 is fixedly mounted on a side of the sliding plate 162 close to the abutment plate 155, the push block 165 slides through a side of the sliding plate 162 away from the Z-shaped piece 163, and the second spring 166 is provided. 6 is arranged between the push block 165 and the sliding plate 162, the knocking block 167 is fixedly installed on the inner wall of the push block 165, the T-shaped rod 168 is fixedly installed on the inner wall of the sliding plate 162, the Z-shaped piece 163 itself is elastic, and the linkage block 164 is provided with an arc surface three on the side away from the sliding plate 162, and the arc surface three is in contact with the abutment plate 155, and the push block 165 is in contact with the purification plate 7. The continuous vibration generated by the collision is transmitted to the purification plate 7 through the knocking block 167, so as to prevent dust particles from accumulating at the connection between the purification plate 7 and the mounting frame 6, resulting in the purification plate 7 being stuck or jammed when moving upward.

[0028] A curved surface 4 is provided on one side of the knocking block 167 close to the T-shaped rod 168. The T-shaped rod 168 itself is elastic. The push block 165 applies a thrust to the purification plate 7, which effectively improves the stability of the purification plate 7 after installation, thereby improving the stability of air purification.

[0029] When the present embodiment is working, when the limit imposed on the purification plate 7 is released, the deformed No. 1 spring 153 is restored under the action of its own elasticity, and the No. 1 spring 153 is restored to drive the lifting plate 152 to move upward, and the lifting plate 152 moves to drive the abutment plate 155 to move upward, and at the same time, the lifting plate 152 moves to drive the arc plate 154 to move upward, and the arc plate 154 moves to exert an upward thrust on the cylindrical rod 10, and the cylindrical rod 10 moves upward under the influence of the thrust, and the movement of the cylindrical rod 10 drives the purification plate 7 to move upward, so as to facilitate the operator to take out the purification plate 7, and the lifting plate 152 moves to drive the friction plate 156 to move upward, and the friction plate 156 and the contact plate 156 move in the process of movement. The arc surface 2 of the plate 158 contacts the moving friction plate 156, and the arc surface 2 imposes an obstacle on the moving friction plate 156. The friction plate 156 is affected by the arc surface 2 and moves toward the direction of the third spring piece 157. The friction plate 156 moves and squeezes the third spring piece 157. The third spring piece 157 is squeezed and deformed. The deformed third spring piece 157 exerts a reaction force on the friction plate 156. The corrugation of the friction plate 156 is affected by the reaction force and fits tightly with the contact plate 158, so that the corrugation generates friction with the contact plate 158 during movement. The upward movement speed of the friction plate 156 is slowed down by the friction force. At the same time, the movement speed of the lifting plate 152 is slowed down by the additional resistance, so that the arc plate 156 moves upward. When the purification plate 7 is moved to the predetermined area, the cylindrical rod 10 is slowly pushed upward, and the cylindrical rod 10 is actively pushed upward by the arc plate 154, so that the operator can quickly take out the purification plate 7. At the same time, the lifting plate 152 is decelerated by the additional resistance when it moves to the designated area, which helps to improve the safety of disassembly. When installing the purification plate 7, the purification plate 7 moves and drives the cylindrical rod 10 to move downward. The cylindrical rod 10 contacts the top of the arc plate 154 during the movement. The movement of the cylindrical rod 10 applies downward pressure to the arc plate 154. The arc plate 154 moves downward under the influence of the pressure. The movement of the arc plate 154 drives the lifting plate 152 to move downward. The movement of the lifting plate 152 stretches The No. 1 spring 153 is stretched and deformed, and at the same time, the lifting plate 152 moves to drive the friction plate 156 to move downward. The friction plate 156 separates from the contact plate 158 during the movement, so that the deformed No. 3 spring 157 recovers and drives the friction plate 156 to move to the initial position. At the same time, the friction generated by the corrugation movement and the contact plate 158 disappears, so that the additional resistance encountered by the lifting plate 152 when moving downward is gradually reduced, which is convenient for the operator to install the purification plate 7 normally. When installing the purification plate 7, the friction plate 156 and the contact plate 158 are automatically separated, which reduces the resistance encountered during the installation, reduces the wear on the friction plate 156, and extends its service life.

[0030] When the purification plate 7 is disassembled, the abutment plate 155 moves upward and separates from the surface in contact with the arc surface three, so that the deformed Z-shaped piece 163 is restored to drive the sliding plate 162 to move in the direction of the linkage block 164, and the sliding plate 162 moves to drive the linkage block 164 to move away from the push block 165. At the same time, the sliding plate 162 moves to drive the T-shaped rod 168 to move in the direction of the Z-shaped piece 163. The T-shaped rod 168 contacts the arc surface four of the first knocking block 167 during the movement. The arc surface four exerts resistance on the moving T-shaped rod 168, so that the moving T-shaped rod 168 is affected by the arc surface four and deformed. When the surface in contact with the first knocking block 167 is separated, the T-shaped rod 168 is deformed. When the purifying plate 7 is separated from the purifying plate 7, the deformed T-shaped rod 168 quickly recovers under the action of its own elasticity. The T-shaped rod 168 collides with the second knocking block 167 to generate vibration during the rapid recovery process. The T-shaped rod 168 repeats the above movement and collides with the third knocking block 167 to generate vibration, so that the T-shaped rod 168 intermittently collides with the knocking block 167 during the movement to generate continuous vibration. The knocking block 167 transmits the continuous vibration to the purification plate 7, so that the purification plate 7 moves more smoothly. While the sliding plate 162 moves, the pressure applied to the No. 2 spring 166 is reduced, so that the deformed No. 2 spring 166 is gradually restored. The No. 2 spring 166 gradually reduces the pressure applied to the push block 165 during the recovery process. With the added reaction force, the thrust exerted by the push block 165 on the purification plate 7 gradually decreases, and the surface of the purification plate 7 in contact with the push block 165 is separated during the upward movement of the purification plate 7, and the continuous vibration generated by the collision is transmitted to the purification plate 7 through the knocking block 167, so as to prevent dust particles from accumulating at the connection between the purification plate 7 and the mounting frame 6, resulting in the purification plate 7 being stuck or stuck when moving upward. When installing the purification plate 7, the inclined surface 2 of the abutment plate 155 moves downward and contacts the arc surface 3 of the linkage block 164, and the inclined surface 2 applies pressure to the arc surface 3. The linkage block 164 is affected by the pressure and moves toward the push block 165, and the movement of the linkage block 164 drives the sliding plate 162 to the push block 16 5, the sliding plate 162 moves to stretch the Z-shaped piece 163, and at the same time, the sliding plate 162 moves to drive the push block 165 to move in the direction away from the linkage block 164. The push block 165 contacts the purification plate 7 during the movement, and the push block 165 is blocked and stops moving. The sliding plate 162 continues to move to squeeze the No. 2 spring 166. The deformed No. 2 spring 166 applies a reaction force to the push block 165, so that the push block 165 applies a thrust to the purification plate 7. The purification plate 7 is affected by the thrust and fits tightly with the mounting frame 6. The push block 165 applies a thrust to the purification plate 7, which effectively improves the stability of the purification plate 7 after installation, thereby improving the stability of the air purification.

[0031] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A fresh air device for a building, comprising a wind box (1), characterized in that: An air outlet is provided inside the bellows (1), a ventilation mechanism (2) is fixedly mounted on the inner wall of the air outlet, an ultraviolet sterilization lamp (3) is fixedly penetrated through the inner wall of the bellows (1), an air heater (4) is fixedly penetrated through the bottom of the bellows (1), an air inlet duct (5) is fixedly penetrated through the side of the bellows (1) away from the air outlet, a hole groove is provided on the top of the air inlet duct (5), and the bellows (1) further comprises a purification device, a disassembly device and a stabilization device; The purification device comprises a mounting frame (6), a purification plate (7), a stop block (8), a first spring piece (9), a cylindrical rod (10), a partition (11), a connecting plate (12), a second spring piece (13) and a stop rod (14); the mounting frame (6) is fixedly connected to the top of the air inlet duct (5); the purification plate (7) is slidably mounted on the inner wall of the mounting frame (6); the stop block (8) is slidably connected to a side of the purification plate (7) close to the bellows (1); the first spring piece (9) is arranged between the stop block (8) and the purification plate (7); the cylindrical rod (10) is fixedly connected to the side of the purification plate (7) away from the stop block (8). The partition (11) is slidably mounted on one side of the positioning block (8), the partition (11) is slidably mounted on the inner wall of the mounting frame (6), the connecting plate (12) is slidably penetrated through the inner and outer walls of the partition (11), the second spring sheet (13) is arranged between the connecting plate (12) and the partition (11), the limiting rod (14) is fixedly mounted on the side of the connecting plate (12) away from the partition (11), the limiting rod (14) is slidably penetrated through the inner and outer walls of the partition (11), a rectangular groove is provided on one side of the mounting frame (6) close to the limiting block (8), the limiting block (8) is in contact with the inner wall of the rectangular groove, and the size of the cylindrical rod (10) is adapted to the hole groove.

2. A fresh air device for a building according to claim 1, characterized in that: A circular hole is provided on one side of the mounting frame (6) close to the limiting rod (14), and the circumferential surface of the limiting rod (14) contacts the inner wall of the circular hole.

3. A fresh air device for a building according to claim 2, characterized in that: The bottom of the partition (11) is provided with an inclined surface 1, and the side of the limit block (8) away from the first spring sheet (9) is provided with an arc surface 1.

4. A fresh air device for a building according to claim 3, characterized in that: The disassembly device comprises a hollow plate (151), a lifting plate (152), a first spring (153), a curved plate (154), a stop plate (155), a friction plate (156), a third spring sheet (157) and a contact plate (158); the hollow plate (151) is fixedly mounted on the inner wall of the air inlet duct (5); the lifting plate (152) is slidably mounted on the inner wall of the hollow plate (151); the first spring (153) is arranged between the lifting plate (152) and the hollow plate (151); the curved plate (154) is fixedly mounted on the inner wall of the air inlet duct (5); The lifting plate (152) is mounted on a side of the lifting plate (152) close to the cylindrical rod (10); the abutment plate (155) is fixedly mounted on a side of the lifting plate (152) close to the arc plate (154); the friction plate (156) slides through a side of the lifting plate (152) away from the abutment plate (155); the third spring sheet (157) is arranged between the friction plate (156) and the lifting plate (152); the contact plate (158) is fixedly mounted on the inner wall of the hollow plate (151); and the arc plate (154) contacts the circumferential surface of the cylindrical rod (10).

5. A fresh air device for a building according to claim 4, characterized in that: The friction plate (156) itself has elasticity, and a surface of the friction plate (156) away from the third spring sheet (157) is provided with corrugations.

6. A fresh air device for a building according to claim 5, characterized in that: A second inclined surface is provided on a side of the abutment plate (155) away from the lifting plate (152), and a second curved surface is provided on the bottom of the contact plate (158).

7. A fresh air device for a building according to claim 6, characterized in that: The stabilizing device comprises a fixing frame (161), a sliding plate (162), a Z-shaped piece (163), a linkage block (164), a push block (165), a No. 2 spring (166), a knocking block (167) and a T-shaped rod (168); the fixing frame (161) is fixedly mounted on the bottom of the inner wall of the air inlet duct (5); the sliding plate (162) slides through the inner and outer walls of the fixing frame (161); the Z-shaped piece (163) is arranged between the sliding plate (162) and the fixing frame (161); and the linkage block (164) is fixedly mounted on a side of the sliding plate (162) close to the abutment plate (155). The push block (165) slides through a side of the sliding plate (162) away from the Z-shaped piece (163), the second spring (166) is arranged between the push block (165) and the sliding plate (162), the knock block (167) is fixedly mounted on the inner wall of the push block (165), the T-shaped rod (168) is fixedly mounted on the inner wall of the sliding plate (162), the Z-shaped piece (163) itself has elasticity, and the linkage block (164) is provided with an arc surface three on a side away from the sliding plate (162), the arc surface three is in contact with the abutment plate (155), and the push block (165) is in contact with the purification plate (7).

8. A fresh air device for a building according to claim 7, characterized in that: A curved surface 4 is provided on a surface of the knocking block (167) close to the T-shaped rod (168), and the T-shaped rod (168) itself is elastic.

Images