A dryer air outlet structure and drying apparatus

Abstract

The utility model relates to clothes drying device technical field, especially points to a kind of clothes dryer air port structure and drying equipment;Including shell and driver, the shell is equipped with air outlet passage, air inlet passage and exhaust port;Rotatable air door is equipped in the exhaust port, and driver is connected air door by transmission structure;When air door rotates to first state, air door separates the shell inner cavity and forms first chamber and second chamber, air outlet passage is connected outside by first chamber and exhaust port, and air inlet passage is connected outside by second chamber and exhaust port;When air door rotates to second state, air outlet passage, first chamber, second chamber and air inlet passage are sequentially connected;A kind of clothes dryer air inlet and outlet device of the utility model, air door can form first chamber and second chamber in the shell inner cavity, air outlet passage and air inlet passage can be respectively connected to form external circulation outside, or close exhaust port to form internal circulation, the flow maximization of exhaust port can be realized.

Description

Technical Field

[0001] This utility model relates to the technical field of clothing drying equipment, specifically to a dryer vent structure, and also discloses a drying device. Background Technology

[0002] In the fast-paced, compact urban life, clothes dryers not only save time and space compared to drying clothes, but also effectively prevent the impact of inclement weather on daily life. Clothes dryers primarily work by heating air, causing the moisture in the clothes to evaporate and then expelling the moisture, thus drying the clothes. Current clothes dryers typically have two operating modes: an exhaust mode (external circulation) and a condensation mode (internal circulation).

[0003] Chinese patent CN2196366873U discloses a valve, a switching valve, and a garment processing device. The valve includes a valve body and a sealing assembly. The valve body includes a first chamber and a second chamber communicating with the first chamber. The first chamber has a first connection port communicating with the external environment, and the second chamber has a second connection port communicating with the external environment. The sealing assembly includes a drive member, a first seal, and a second seal. The drive member is driven by the first seal to rotate it. The second seal is hinged to the first seal. The first seal is movably positioned over the first connection port, and the second seal is movably positioned over the second connection port. This allows for the switching and flow of air between the first and second flow channels, between the first and external flow channels, and between the second and external flow channels, enabling the garment processing device to quickly adapt to the external environment and garment processing needs.

[0004] In the aforementioned prior art, the driving component drives the hinged first and second seals to slide relative to each other within the first and second connecting ports. A guide groove is provided on the opposite side of the second chamber, and a limiting plate is provided at the first chamber and the first outlet to control the sliding trajectory of the first and second seals. Given a fixed volume, due to the opening and closing mechanism of the first and second seals, the first and second connecting ports cannot be fully opened, resulting in a small air exchange flow between the garment processing equipment and the outside environment, thus affecting drying efficiency.

[0005] Therefore, existing technologies still need to be improved and developed. Utility Model Content

[0006] The purpose of this utility model is to address the shortcomings and deficiencies of the existing technology by providing a dryer vent structure and drying equipment that is structurally reasonable, highly efficient, and flexible in use.

[0007] To achieve the above objectives, the technical solution adopted by this utility model is as follows: The present invention discloses a dryer vent structure, comprising a housing and a driver. The housing is a hollow structure and has an air outlet channel, an air inlet channel, and an exhaust port. The exhaust port has a rotatable damper, and the driver is connected to the damper via a transmission structure. When the damper is rotated to a first state, the damper divides the inner cavity of the housing into a first chamber and a second chamber. The air outlet channel connects to the outside through the first chamber and the exhaust port, and the air inlet channel connects to the outside through the second chamber and the exhaust port. When the damper is rotated to a second state, the damper closes the exhaust port, and the air outlet channel, the first chamber, the second chamber, and the air inlet channel are sequentially connected.

[0008] This invention is applied to dryers or other drying equipment, wherein the air outlet channel and the air inlet channel are respectively connected to the drying chamber, which is the inner drum of the dryer.

[0009] Specifically, when the damper is in the second state, it closes the exhaust port. At this time, the air outlet, the first chamber, the second chamber, the air inlet, and the inner cylinder form an internal circulation path, which includes a condenser. The high-temperature humid air in the inner cylinder flows along the internal circulation path, and after the condenser filters the humid air, the dry hot air returns to the inner cylinder.

[0010] When the damper is in its first state, it opens the exhaust vent. At this time, the damper acts as a partition structure within the housing, dividing the inner cavity into an independent first chamber and a second chamber. Specifically, the first and second chambers are connected to the outside through exhaust vents. The dryer is in external circulation mode at this time. As described above, the high-temperature, humid air in the inner drum is discharged to the outside through the condenser, air outlet, first chamber, and exhaust vent, while dry, cold air from outside enters the inner drum through the exhaust vent, second chamber, and air inlet.

[0011] The damper combines the opening and closing structure of the exhaust vent with the partition structure inside the housing, making it intelligent, flexible, and able to meet the usage requirements of existing drying equipment, with strong compatibility.

[0012] For example, the housing can be a cylindrical structure, with the damper positioned around the centerline of the housing and rotatable within the housing cavity. The edge of the damper slides and seals against the housing cavity. An exhaust port with a wide damper is formed on the outer edge of the housing's cylindrical wall. When the damper is in its first state (horizontally positioned along a horizontal plane), it divides the housing cavity and the exhaust port equally. At this time, the first and second chambers are connected to the outside, forming an external circulation mode. When the damper is vertically positioned within the housing, the exhaust port is closed. In this case, the air outlet channel connects directly to the air inlet channel through the housing cavity, forming an internal circulation mode. According to the above scheme, the shell includes a first sidewall, a second sidewall, a third sidewall, and a fourth sidewall. The first sidewall, the second sidewall, the third sidewall, and the fourth sidewall are connected in sequence to form an exhaust port at the outer end of the shell. The two ends of the damper are rotatably connected to the first sidewall and the third sidewall, respectively. When the damper is rotated to the second state, the damper is vertically arranged between the second sidewall and the fourth sidewall, that is, the damper is perpendicular to the second sidewall and the fourth sidewall, thereby closing the exhaust port. When the damper is rotated to the first state, the damper is horizontally arranged between the second sidewall and the fourth sidewall, that is, the damper is parallel to the second sidewall and the fourth sidewall, thereby dividing the inner cavity of the shell into a first chamber and a second chamber.

[0013] Preferably, this utility model uses a cuboid shell, which can reduce the space occupied by the shell. The shell has four side walls to form an inner cavity, wherein the outer end of the shell is an exhaust port, and the inner end of the shell connects to the equipment. Specifically, the rotation center axis of the damper is set inside the exhaust port and parallel to the lateral center line of the exhaust port. When the damper is in the first state (laterally set along the horizontal plane), the damper is equivalent to cutting the exhaust port into two parts, and the damper divides the inner cavity of the shell into a first chamber and a second chamber set vertically.

[0014] Understandably, the air outlet duct is located at the upper part of the casing, corresponding to and connecting with the first chamber, while the air inlet duct is located at the lower part of the casing, corresponding to and connecting with the second chamber. In this configuration, the air outlet duct connects to the outside through the first chamber and the exhaust vent, and the air inlet duct connects to the outside through the second chamber and the exhaust vent.

[0015] Furthermore, when the damper is rotated to the second state, it is vertically positioned at the exhaust port to close, thereby merging and connecting the inner cavity of the housing, namely the first chamber and the second chamber. At this time, the exhaust channel is connected to the intake channel through the inner cavity of the housing, forming an internal circulation mode.

[0016] According to the above scheme, the damper includes three rotating plates, which are parallel to each other and arranged sequentially. The driver is connected to the three rotating plates respectively through a transmission structure. There are three shaft holes on the first side wall and the third side wall. The two ends of the rotating plates are provided with shaft rods, which pass through the corresponding shaft holes. The housing is provided with a partition, which is spaced apart from the second side wall and the fourth side wall. The two ends of the partition are fixedly connected to the first side wall and the second side wall. When the damper is rotated to the first state, the middle rotating plate docks with the partition, thereby dividing the inner cavity of the housing into a first chamber and a second chamber.

[0017] Preferably, the three flip-up plates form a complete damper. By disassembling the damper into three flip-up plates, the operating space required for opening and closing the damper can be reduced while maximizing the area of ​​the exhaust port. This primarily addresses the thickness of the housing in the inward and outward (horizontal) directions, thereby reducing the volume of the housing. In particular, when the inward and outward thickness of the housing is relatively small, a partition plate in conjunction with the middle flip-up plate can divide the inner cavity of the housing into a first chamber and a second chamber.

[0018] According to the above scheme, both sides of the flip plate are provided with buckles, which form steps with the side walls of the flip plate, and the steps on both sides of the flip plate face opposite directions; when the damper is rotated to the second state, two adjacent buckles overlap through the steps. The flip plate and the buckles on both sides form a structure with a "Z" shaped cross section. Adjacent flip plates can interlock through the buckles to avoid gaps between the flip plates and provide better airtightness. That is, the three flip plates are sequentially overlapped through the buckles to form an integral damper structure, which closes the exhaust port.

[0019] According to the above scheme, the inner end of the shell is provided with a bottom sealing plate, and the two ends of the bottom sealing plate are respectively connected to the first side wall and the second side wall. The upper side of the bottom sealing plate is connected to the second side wall, and the partition is connected to the lower side of the bottom sealing plate, thereby forming an air inlet channel between the partition and the fourth side wall. The air outlet channel is provided on the first side wall, the second side wall, or the third side wall. As mentioned above, the outer end of the shell is provided with an exhaust port, and the inner end of the shell is used to connect to the drying equipment. The air inlet channel is usually located at the inner end of the shell, and the second chamber is located at the lower part of the shell and corresponds to the air inlet channel. The bottom sealing plate corresponds to the inner side of the first chamber. When the middle flip plate is rotated to a horizontal state, the second side wall, the bottom sealing plate, the partition, and the flip plate are arranged around the first chamber in sequence. Of course, the exhaust port side is open, so that the air outlet channel is connected to the outside through the first chamber and the exhaust port.

[0020] According to the above scheme, the transmission structure includes a guide rail, a rack, and gears. The guide rail is fixed to the first side wall, and a rack that can slide along the guide rail is provided. A gear is provided on the shaft at one end of each flip plate, and the gears on all three flip plates are meshed with the rack. The driver is fixed to the guide rail, and the output shaft of the driver is connected to one of the gears. The shaft and gear are fixedly connected by keyways, flat openings, anchoring, etc., and the gears are linked to the flip plates through the shaft. The rack can slide along the guide rail, and the rack meshes with the three gears to make the three flip plates rotate synchronously. It can be understood that the driver is a motor, and the driver can drive the gears to rotate 90° through the rack, so that the three flip plates close the exhaust vents or fully open the exhaust vents, maximizing the use of the exhaust vent flow.

[0021] According to the above scheme, sensors are provided at both ends of the guide rail. The sensors are used to control the reciprocating stroke of the rack. The sensors include, but are not limited to, microswitches.

[0022] A drying device includes a body with an inner drum, a condenser, and a circulating fan mounted on it. A dryer vent structure is located on the back of the body. The air inlets of the inner drum, condenser, and circulating fan are connected in sequence. The air outlet of the circulating fan is connected to an air outlet channel on the casing, and the air inlet channel on the casing is connected to the inner drum. The casing is fixed to the back of the body. The inner drum, condenser, circulating fan, and casing are sequentially connected, and humid air flows along this path. When the exhaust vent is closed, the path is in internal circulation mode, and the humid air returns to the inner drum after being dried by the condenser. When the exhaust vent is open, the inner drum, condenser, circulating fan, and exhaust vent on the casing form a condensation and exhaust path, and external dry, cold air enters the inner drum through the exhaust vent, a second chamber, and the air inlet channel.

[0023] According to the above scheme, a heating element is provided in the air inlet channel. Dry, cold air from outside enters the inner cylinder through the air inlet channel, and the heating element can heat the air to maintain the temperature inside the inner cylinder. Preferably, the two side walls of the heating element are respectively attached to the second side wall and the partition, and the heating element can be assembled with the shell. Thus, the side walls of the heating element can replace the partition.

[0024] This utility model discloses a dryer vent structure. The vent can divide the inner cavity of the housing into a first chamber and a second chamber, so that the air outlet and air inlet can be connected to the outside to form an external circulation, or the exhaust vent can be closed to form an internal circulation. The area of ​​the vent is matched with that of the exhaust vent, and the vent can be fully opened, so that the air flow of the exhaust vent can be maximized under the same volume. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the air outlet device (internal circulation) of this utility model; Figure 2 This is a schematic diagram of the disassembled structure of the air outlet device of this utility model; Figure 3 yes Figure 1 A schematic diagram of the vertical sectional structure; Figure 4 This is a schematic diagram of the drying equipment (external circulation) of this utility model.

[0026] In the picture: 1. Housing; 2. Air damper; 3. Guide rail; 4. Body; 11. Driver; 12. First chamber; 13. Second chamber; 14. First side wall; 15. Second side wall; 16. Third side wall; 7. Fourth side wall; 18. Partition; 19. Bottom plate; 100. Air outlet; 200. Air inlet; 300. Exhaust vent; 400. Shaft hole; 21. Flip plate; 22. Shaft; 23. Buckle; 230. Step; 31. Rack; 32. Gear; 33. Sensor; 41. Inner cylinder; 42. Condenser; 43. Circulating fan; 44. Heating element. Detailed Implementation

[0027] The technical solution of this utility model will be described below with reference to the accompanying drawings and embodiments.

[0028] like Figure 1-4 As shown, the present invention discloses a dryer vent structure comprising a housing 1 and a driver 11. The housing 1 is a hollow structure and is provided with an air outlet 100, an air inlet 200, and an exhaust vent 300. The exhaust vent 300 is provided with a rotatable damper 2, and the driver 11 is connected to the damper 2 through a transmission structure. When the damper 2 is rotated to a first state, the damper 2 divides the inner cavity of the housing 1 into a first chamber 12 and a second chamber 13. The air outlet 100 is connected to the outside through the first chamber 12 and the exhaust vent 300, and the air inlet 200 is connected to the outside through the second chamber 13 and the exhaust vent 300. When the damper 2 is rotated to a second state, the damper 2 closes the exhaust vent 300, and the air outlet 100, the first chamber 12, the second chamber 13, and the air inlet 200 are sequentially connected.

[0029] This utility model is applied to dryers or other drying equipment. The air outlet channel 100 and the air inlet channel 200 are respectively connected to the drying chamber, which is the inner drum 41 of the dryer.

[0030] Specifically, when damper 2 is in the second state, the damper closes the exhaust port 300. At this time, the air outlet duct 100, the first chamber 12, the second chamber 13, the air inlet duct 200, and the inner cylinder 41 form an internal circulation path, which includes a condenser 42. The high-temperature humid air in the inner cylinder 41 flows along the internal circulation path, and after the condenser 42 filters the humid air, the dry hot air returns to the inner cylinder 41.

[0031] When the damper 2 is in the first state, the damper 2 opens the exhaust port 300. At this time, the damper 2 acts as a partition structure within the housing 1, dividing the inner cavity of the housing 1 into an independent first chamber 12 and a second chamber 13. In particular, the first chamber 12 and the second chamber 13 are connected to the outside through the exhaust port 300. At this time, the dryer is in external circulation mode. As mentioned above, the high-temperature humid air in the inner drum 41 is discharged to the outside through the condenser 42, the air outlet 100, the first chamber 12, and the exhaust port 300, while the dry and cold air from the outside enters the inner drum 41 through the exhaust port 300, the second chamber 13, and the air inlet 200.

[0032] The damper 2 combines the switching structure of the exhaust port 300 with the partition structure inside the housing 1, making it intelligent and flexible, meeting the usage requirements of existing drying equipment, and highly compatible.

[0033] For example, the housing 1 can be a cylindrical structure. The damper 2 is set around the centerline of the housing 1, and the damper 2 can rotate within the cavity of the housing 1 around this axis. The edge of the damper 2 slides and fits (seals) against the cavity of the housing 1. An exhaust port 300 of the width of the damper 2 is opened on the cylindrical wall (outer edge) of the housing 1. When the damper 2 is in the first state (set laterally along the horizontal plane), the damper 2 divides the cavity of the housing 1 and the exhaust port 300 equally. At this time, the first chamber 12 and the second chamber 13 are respectively connected to the outside, thus forming an external circulation mode. When the damper 2 is set vertically inside the housing 1, the exhaust port 300 is closed. At this time, the air outlet channel 100 is directly connected to the air inlet channel 200 through the cavity of the housing 1 to form an internal circulation mode. like Figure 3 As shown, the housing 1 includes a first sidewall 14, a second sidewall 15, a third sidewall 16, and a fourth sidewall 17. The first sidewall 14, the second sidewall 15, the third sidewall 16, and the fourth sidewall 17 are connected in sequence to form an exhaust port 300 at the outer end of the housing 1. The two ends of the damper 2 are rotatably connected to the first sidewall 14 and the third sidewall 16, respectively. When the damper 2 is rotated to the second state, the damper 2 is vertically arranged between the second sidewall 15 and the fourth sidewall 17, that is, the damper 2 is perpendicular to the second sidewall 15 and the fourth sidewall 17, thereby closing the exhaust port 300. When the damper 2 is rotated to the first state, the damper 2 is horizontally arranged between the second sidewall 15 and the fourth sidewall 17, that is, the damper 2 is parallel to the second sidewall 15 and the fourth sidewall 17, thereby dividing the inner cavity of the housing 1 to form a first chamber 12 and a second chamber 13.

[0034] Preferably, this utility model uses a cuboid shell 1, which can reduce the space occupied by the shell 1. The shell 1 has four side walls to form an inner cavity, wherein the outer end of the shell 1 is an exhaust port 300, and the inner end of the shell 1 connects to the equipment. Specifically, the rotation center axis of the damper 2 is set inside the exhaust port 300 and parallel to the transverse center line of the exhaust port 300. When the damper 2 is in the first state (transversely set along the horizontal plane), the damper 2 is equivalent to cutting the exhaust port 300 into two parts, and the damper 2 divides the inner cavity of the shell 1 into a first chamber 12 and a second chamber 13 set vertically.

[0035] It is understood that the air outlet duct 100 is located on the upper part of the housing 1, corresponding to and connected to the first chamber 12, and the air inlet duct 200 is located on the lower part of the housing 1, corresponding to and connected to the second chamber 13. At this time, the air outlet duct 100 connects to the outside through the first chamber 12 and the exhaust port 300, and the air inlet duct 200 connects to the outside through the second chamber 13 and the exhaust port 300.

[0036] Furthermore, the damper 2 is rotated to the second state, and the damper 2 is vertically set at the exhaust port 300 to close it. Then, the inner cavity of the housing 1, namely the first chamber 12 and the second chamber 13, is merged and connected. At this time, the air outlet channel 100 is connected to the air inlet channel 200 through the inner cavity of the housing 1 to form an internal circulation mode.

[0037] The damper 2 includes three rotating plates 21, which are parallel to each other and arranged sequentially. The driver 11 is connected to the three rotating plates 21 respectively through a transmission structure. There are three shaft holes 400 on the first side wall 14 and the third side wall 16. The two ends of the rotating plates 21 are provided with shaft rods 22, which pass through the corresponding shaft holes 400. The housing 1 is provided with a partition 18, which is spaced apart from the second side wall 15 and the fourth side wall 17. The two ends of the partition 18 are fixedly connected to the first side wall 14 and the second side wall 15. When the damper 2 is rotated to the first state, the middle rotating plate 21 is connected to the partition 18, thereby dividing the inner cavity of the housing 1 to form a first chamber 12 and a second chamber 13.

[0038] Preferably, the three flip plates 21 form a complete damper 2. By disassembling the damper 2 into three flip plates 21, the area of ​​the exhaust port 300 can be maximized while reducing the operating space required for opening and closing the damper 2. This mainly addresses the thickness of the housing 1 in the inward and outward (horizontal) directions, thus reducing the volume of the housing 1. In particular, when the thickness of the housing 1 in the inward and outward directions is relatively small, a partition 18 in conjunction with the middle flip plate 21 can divide the inner cavity of the housing 1 into a first chamber 12 and a second chamber 13.

[0039] Both sides of the flip plate 21 are provided with buckles 23, which form steps 230 with the side wall of the flip plate 21, and the steps 230 on both sides of the flip plate 21 face opposite directions; when the damper 2 is rotated to the second state, two adjacent buckles 23 overlap through the steps 230. The flip plate 21 and the buckles 23 on both sides form a structure with a "Z" shaped cross section. Adjacent flip plates 21 can interlock through the buckles 23 to avoid gaps between flip plates 21 and provide better air tightness. That is, the three flip plates 21 are sequentially overlapped by the buckles 23 to form an integral damper 2 structure, which closes the exhaust port 300.

[0040] The inner end of the housing 1 is provided with a bottom sealing plate 19. The two ends of the bottom sealing plate 19 are respectively connected to the first side wall 14 and the second side wall 15. The upper side of the bottom sealing plate 19 is connected to the second side wall 15. The partition plate 18 is connected to the lower side of the bottom sealing plate 19, thereby forming an air inlet channel 200 between the partition plate 18 and the fourth side wall 17. The air outlet channel 100 is provided on the first side wall 14, the second side wall 15, or the third side wall 16. As described above, the outer end of the housing 1 is provided with an exhaust port 300. The inner end of the housing 1 is used to connect to the drying equipment, and the air inlet channel 200 is usually provided at the inner end of the housing 1. The second chamber 13 is provided at the lower part of the housing 1 and corresponds to the air inlet channel 200. The bottom sealing plate 19 corresponds to the inner side of the first chamber 12. When the middle flip plate 21 is rotated to a horizontal state, the second side wall 15, the bottom sealing plate 19, the partition plate 18 and the flip plate 21 are arranged around the first chamber 12 in sequence. Of course, the exhaust port 300 is open on one side, so that the air outlet 100 is connected to the outside through the first chamber 12 and the exhaust port 300.

[0041] The transmission structure includes a guide rail 3, a rack 31, and gears 32. The guide rail 3 is fixed to the first side wall 14, and a rack 31 that can slide along the guide rail 3 is provided. A gear 32 is provided on the shaft 22 at one end of the flip plate 21, and the gears 32 on the three flip plates 21 are all meshed with the rack 31. The driver 11 is fixed to the guide rail 3, and the output shaft of the driver 11 is connected to one of the gears 32. The shaft 22 and the gears 32 are fixedly connected by keyways, flat openings, anchoring, etc., and the gears 32 are linked to the flip plates 21 through the shaft 22. The rack 31 can slide along the guide rail 3, and the rack 31 meshes with the three gears 32, causing the three flip plates 21 to rotate synchronously. It is understood that the driver 11 is a stepper motor. The driver 11 can drive the gear 32 to rotate 90° through the rack 31, so that the three flip plates 21 can close the exhaust port 300 or fully open the exhaust port 300, thereby maximizing the flow of the exhaust port 300.

[0042] Sensors 33 are provided at both ends of the guide rail 3. The sensors 33 are used to control the reciprocating stroke of the rack 31. The sensors 33 include, but are not limited to, micro switches.

[0043] like Figure 4 As shown, a drying device includes a body 4, on which an inner cylinder 41, a condenser 42, and a circulating fan 43 are provided. A dryer air vent structure is provided on the back of the body 4. The air inlets of the inner cylinder 41, condenser 42, and circulating fan 43 are connected in sequence. The air outlet of the circulating fan 43 is connected to an air outlet channel 100 on the housing 1, and an air inlet channel 200 on the housing 1 is connected to the inner cylinder 41. The housing 1 is fixed to the back of the body 4. The inner cylinder 41, condenser 42, circulating fan 43, and housing 1 are connected in sequence. Humid and hot air flows in the above path. When the exhaust vent 300 is closed, the above path is in internal circulation mode, and the humid and hot air returns to the inner cylinder 41 after being dried by the condenser 42. When the exhaust vent 300 is opened, the inner cylinder 41, condenser 42, circulating fan 43 and exhaust vent 300 on the shell 1 form a condensation and exhaust path, and the external dry and cold air enters the inner cylinder 41 through the exhaust vent 300, the second chamber 13 and the air inlet channel 200.

[0044] As described above, a heating element 44 is provided inside the air inlet channel 200. Dry, cold air from outside enters the inner cylinder 41 through the air inlet channel 200, and the heating element 44 can heat the air to maintain the temperature inside the inner cylinder 41. Preferably, the two side walls of the heating element 44 are respectively attached to the second side wall 15 and the partition 18, and the heating element 44 can be assembled with the housing 1. Thus, the side walls of the heating element 44 can replace the partition 18.

[0045] The above description is only a preferred embodiment of the present utility model. Therefore, all equivalent changes or modifications made to the structure, features and principles described in the claims of the present utility model patent application are included in the scope of the present utility model patent application.

Claims

1. A dryer vent structure, comprising a housing (1) and a driver (11), wherein the housing (1) is a hollow structure and is provided with an air outlet (100), an air inlet (200), and an exhaust vent (300); characterized in that, The exhaust port (300) is provided with a rotatable damper (2), and the driver (11) is connected to the damper (2) through a transmission structure. When the damper (2) is rotated to the first state, the damper (2) divides the inner cavity of the housing (1) to form a first chamber (12) and a second chamber (13). The air outlet channel (100) is connected to the outside through the first chamber (12) and the exhaust port (300), and the air inlet channel (200) is connected to the outside through the second chamber (13) and the exhaust port (300). When the damper (2) is rotated to the second state, the damper (2) closes the exhaust port (300), and the air outlet channel (100), the first chamber (12), the second chamber (13) and the air inlet channel (200) are connected in sequence.

2. The dryer vent structure according to claim 1, characterized in that, The housing (1) includes a first sidewall (14), a second sidewall (15), a third sidewall (16), and a fourth sidewall (17). The first sidewall (14), the second sidewall (15), the third sidewall (16), and the fourth sidewall (17) are connected in sequence to form an exhaust port (300) at the outer end of the housing (1). The two ends of the damper (2) are rotatably connected to the first sidewall (14) and the third sidewall (16), respectively. When the damper (2) is rotated to the second state, the damper (2) is vertically arranged between the second sidewall (15) and the fourth sidewall (17), thereby closing the exhaust port (300). When the damper (2) is rotated to the first state, the damper (2) is horizontally arranged between the second sidewall (15) and the fourth sidewall (17), thereby dividing the inner cavity of the housing (1) to form a first chamber (12) and a second chamber (13).

3. The dryer vent structure according to claim 2, characterized in that, The damper (2) includes three rotating plates (21), which are parallel to each other and arranged in sequence. The driver (11) is connected to the three rotating plates (21) through a transmission structure. There are three shaft holes (400) on the first side wall (14) and the third side wall (16). The two ends of the rotating plate (21) are provided with shaft rods (22), and the shaft rods (22) at both ends of the rotating plate (21) pass through the corresponding shaft holes (400). The housing (1) is provided with a partition (18), which is spaced apart from the second side wall (15) and the fourth side wall (17). The two ends of the partition (18) are fixedly connected to the first side wall (14) and the second side wall (15). When the damper (2) is rotated to the first state, the middle rotating plate (21) docks with the partition (18) to divide the inner cavity of the housing (1) into a first chamber (12) and a second chamber (13).

4. The dryer vent structure according to claim 3, characterized in that, The flip plate (21) is provided with buckles (23) on both sides. The buckles (23) and the side wall of the flip plate (21) form a step (230), and the steps (230) on both sides of the flip plate (21) face opposite directions. When the damper (2) is rotated to the second state, two adjacent buckles (23) are connected by the step (230).

5. The dryer vent structure according to claim 3, characterized in that, The inner end of the housing (1) is provided with a bottom sealing plate (19). The two ends of the bottom sealing plate (19) are respectively connected to the first side wall (14) and the second side wall (15). The upper side of the bottom sealing plate (19) is connected to the second side wall (15). The partition (18) is connected to the lower side of the bottom sealing plate (19), thereby forming an air inlet channel (200) between the partition (18) and the fourth side wall (17). The air outlet channel (100) is provided on the first side wall (14), the second side wall (15) or the third side wall (16).

6. The dryer vent structure according to claim 3, characterized in that, The transmission structure includes a guide rail (3), a rack (31) and a gear (32). The guide rail (3) is fixed on the first side wall (14), and the guide rail (3) is provided with a rack (31) that can slide along it. The shaft (22) at one end of the flip plate (21) is provided with a gear (32), and the gears (32) on the three flip plates (21) are all meshed with the rack (31). The driver (11) is fixed on the guide rail (3), and the output shaft of the driver (11) is connected to one of the gears (32).

7. The dryer vent structure according to claim 6, characterized in that, Sensors (33) are provided at both ends of the guide rail (3).

8. A drying device, comprising a body (4), wherein the body (4) is provided with an inner cylinder (41), a condenser (42), and a circulating fan (43); characterized in that, The back of the body (4) is provided with the dryer air outlet structure as described in any one of claims 1-7; the air inlets of the inner drum (41), condenser (42) and circulating fan (43) are connected in sequence, the air outlet of the circulating fan (43) is connected to the air outlet channel (100) on the housing (1), and the air inlet channel (200) on the housing (1) is connected to the inner drum (41).

9. The drying equipment according to claim 8, characterized in that, The air inlet channel (200) is provided with a heating element (44), and the two side walls of the heating element (44) are respectively attached to the second side wall (15) and the partition (18).

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