Self-cleaning air purification equipment

Abstract

The invention discloses self-cleaning air purification equipment which comprises an air duct and a purification assembly, the purification assembly is arranged in the air duct, two air openings are formed in the outer surface of the air duct, the self-cleaning air purification equipment further comprises an ultrasonic cleaning assembly and two shielding assemblies, and the ultrasonic cleaning assembly is arranged in the air duct; the two shielding assemblies are connected to the two air openings correspondingly and have a self-cleaning state and a purification state. A cleaning cavity is formed between the air duct and the two shielding assemblies, the ultrasonic cleaning assembly is arranged in the cleaning cavity, when the air duct is in the self-cleaning state, water is injected into the cleaning cavity, and the purification assembly is cleaned through the ultrasonic cleaning assembly; and in the purification state, the shielding assembly is opened, a ventilation channel is formed in the air duct, and the passing air is dedusted and purified. By arranging the shielding assembly, the air channel is switched between the cleaning cavity and the ventilation channel, the structure is simple, space is saved, the step of disassembling and assembling the dust collecting assembly is omitted, time is saved, and the cleaning effect is better.

Description

Technical Field

[0001] The present invention relates to the technical field of industrial equipment, in particular to a self-cleaning air purification device. Background Art

[0002] Air purification equipment uses fans and purification modules with different technologies to remove harmful substances such as particulate matter from the air, providing healthy and clean air. Electrostatic dust collection is a common technology used in air purification equipment. It works by electrostatic adsorption, which uses the electric field to attract particulate matter to the dust collection plate. This technology offers low wind resistance, low energy consumption, and high dust removal efficiency. However, cleaning requires removing the dust collection module, cleaning it, and then reinstalling it, which is time-consuming and labor-intensive.

[0003] Currently, there are electrostatic dust collection air purifiers with automatic cleaning function on the market. However, the principle of the current electrostatic dust collection air purifier with automatic cleaning function is that a cleaning water tank needs to be set up under the air duct, and the dust collection module in the air duct is removed by mechanical means instead of manual labor and placed in the cleaning water tank for cleaning, and then the dust collection module is reinstalled in the air duct. Due to the addition of the automatic cleaning device, the air purifier is larger and heavier. At the same time, most fully automatic cleaning air purification equipment is used for air dust removal with vertical air intake, and cannot be used for air dust removal with horizontal air intake, and cannot meet the needs of more application scenarios. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide a self-cleaning air purification device in order to overcome the defects of the self-cleaning air purifier in the prior art that is bulky and heavy.

[0005] The present invention solves the above technical problems through the following technical solutions:

[0006] A self-cleaning air purification device comprises an air duct and a purification component, wherein the purification component is arranged in the air duct, and the outer surface of the air duct has two air outlets. The self-cleaning air purification device is characterized in that the self-cleaning air purification device also includes an ultrasonic cleaning component and two shielding components, wherein the ultrasonic cleaning component is arranged in the air duct, and the two shielding components are respectively connected to the two air outlets and have a self-cleaning state and a purification state;

[0007] In the self-cleaning state, the two shielding components respectively cover the two air outlets, so that a cleaning cavity is formed between the two shielding components and the air duct;

[0008] In the purification state, the two shielding components are respectively opened at the two air outlets, so that a ventilation channel is formed between the shielding components and the air duct.

[0009] In this solution, a shielding assembly is provided at the air outlet of the air duct, forming a cleaning chamber between the air duct and the two shielding assemblies. An ultrasonic cleaning assembly is provided in the cleaning chamber. When in the self-cleaning state, water is injected into the cleaning chamber, and the purification assembly is cleaned by the ultrasonic cleaning assembly. After cleaning, the water is discharged. When in the purification state, the shielding assembly is opened, and a ventilation channel is formed in the air duct to remove dust and purify the passing air. By providing the shielding assembly, the air duct can be switched between the cleaning chamber and the ventilation channel. This simplifies the structure, saves space, eliminates the steps of disassembling and assembling the dust collection assembly, saves time, and achieves a better cleaning effect.

[0010] Preferably, the shielding assembly includes a driving member, a transmission member and a rolling curtain, and the driving member, the transmission member and the rolling curtain are all arranged in the ventilation channel. The driving member is connected to the transmission member and drives the transmission member to move, and the transmission member is connected to the rolling curtain and drives the rolling curtain to move, so that the rolling curtain covers the air outlet or opens the air outlet.

[0011] In this solution, by arranging a roller shutter in the ventilation channel, space is further saved. The roller shutter has a mature structure and high stability, thereby improving reliability.

[0012] Preferably, the rolling curtain includes a sealing section and a mesh section, and the rolling curtain is wound around the transmission member. When in the self-cleaning state, the sealing section covers the air outlet, and when in the purification state, the mesh section covers the air outlet.

[0013] In this solution, the difference between the sealing section and the mesh section is used to change whether a cleaning chamber or a ventilation channel is formed in the air duct. When the sealing section covers the air outlet, a cleaning chamber is formed between the sealing section and the air duct. When the mesh section covers the air outlet, the air duct is connected to the outside world through the mesh holes of the mesh section to form a ventilation channel.

[0014] Preferably, the transmission member includes a meshing driving gear and a driven gear, the driving member is connected to the driving gear, the driven gear is meshed with the driving gear and rotates in the opposite direction to the driving gear, the transmission member also includes a rotating shaft, the driving gear and the rotating shaft are arranged on two opposite sides of the air outlet, one end of the rolling curtain is wound around the driving gear shaft of the driving gear, and the other end is wound around the driven gear shaft of the driven gear after extending around the rotating shaft. The rolling curtain is wound around the driving gear shaft through the forward rotation of the driving gear, and the driving gear rotates in the reverse direction, driving the driven gear to rotate, so that the rolling curtain is wound around the driven gear shaft.

[0015] In this solution, the driving gear and the driven gear mesh with each other, which has a simple structure, low cost and high reliability.

[0016] Preferably, the transmission member includes a first rotating shaft and a second rotating shaft, the first rotating shaft and the second rotating shaft are arranged on opposite sides of the air outlet, one end of the rolling curtain is connected to the first rotating shaft, and the other end of the rolling curtain is connected to the second rotating shaft, the first rotating shaft is connected to the driving member so that the rolling curtain is gradually wound around the first rotating shaft as the first rotating shaft rotates, and / or the second rotating shaft is connected to the driving member so that the rolling curtain is gradually wound around the second rotating shaft as the second rotating shaft rotates.

[0017] In this solution, by arranging a first rotating shaft and a second rotating shaft on opposite sides of the air outlet, the two ends of the rolling curtain are respectively wound around the first rotating shaft and the second rotating shaft, so that the structure is stable and the reliability is high.

[0018] Preferably, one of the first rotating shaft and the second rotating shaft is connected to the driving member, and the other is a spring rotating shaft. The driving member drives the first rotating shaft or the second rotating shaft to rotate, and causes the spring rotating shaft to generate reverse torque through the rolling shutter.

[0019] In this solution, one of the first rotating shaft and the second rotating shaft is a clockwork rotating shaft, and when the roller blind is rotated by the other rotating shaft, the clockwork rotating shaft is wound up, so that the clockwork rotating shaft generates a reverse torque. Compared with configuring driving parts for the first rotating shaft and the second rotating shaft respectively, the use of the clockwork rotating shaft saves one driving part, has lower cost and simpler structure.

[0020] Preferably, the shielding assembly also includes an elastic member, which is connected to the air duct, one end of the rolling curtain is wound around the first rotating shaft, the first rotating shaft is connected to the driving member, and the other end of the rolling curtain is connected to the elastic member by bypassing the second rotating shaft. The driving member drives the first rotating shaft to rotate so that the rolling curtain is wound around the first rotating shaft, and the rolling curtain acts on the elastic member to deform the elastic member. When the first rotating shaft stops rotating or rotates in the opposite direction, the elastic member acts on the rolling curtain.

[0021] In this solution, an elastic member is used to connect and exert force on the rolling shutter. Compared with configuring driving members for the first rotating shaft and the second rotating shaft respectively, one driving member is saved, the cost is reduced, and the structure is simple.

[0022] Preferably, the shielding assembly further includes a mounting frame, the mounting frame is connected to the air duct and located at the air outlet, and the driving member, the transmission member and the rolling curtain are all arranged in the mounting frame.

[0023] In this solution, the structure is arranged in a mounting frame, and the modular design facilitates installation and replacement.

[0024] Preferably, the shielding assembly further includes a counterweight, and the rolling curtain moves up and down in a vertical direction. The counterweight is connected to the rolling curtain and applies a downward force to the rolling curtain.

[0025] In this solution, the vertical movement of the rolling curtain can make full use of the curtain's own weight, and adding a counterweight makes the curtain tight and improves the airtightness.

[0026] Preferably, the air duct is extended in a horizontal direction, and the two air outlets are located at two ends of the air duct.

[0027] In this solution, the air duct extends horizontally to meet the needs of dust removal for horizontal air intake and increase usage scenarios.

[0028] Preferably, the self-cleaning air purification device also includes a controller, which is electrically connected to the purification component, the ultrasonic cleaning component and the shielding component, and is used to control the switches of the purification component, the ultrasonic cleaning component and the shielding component respectively.

[0029] In this solution, by setting up a controller, the degree of automation of the self-cleaning air purification equipment is improved, the difficulty of use is reduced, and the accuracy is improved.

[0030] The positive and progressive effect of the present invention is that by setting a shielding component at the air outlet of the air duct, a cleaning chamber is formed between the air duct and the two shielding components, and the ultrasonic cleaning component is set in the cleaning chamber. When in the self-cleaning state, water is injected into the cleaning chamber, and the purification component is cleaned by the ultrasonic cleaning component, and the water is discharged after cleaning. When in the purification state, the shielding component is opened, and a ventilation channel is formed in the air duct to remove dust and purify the passing air. By setting the shielding component, the air duct is switched between the cleaning chamber and the ventilation channel, the structure is simple, space is saved, the steps of disassembling and assembling the dust collection component are eliminated, time is saved, and both the dust collection module and the ionization module in the purification component can be cleaned, and the overall cleaning effect is better. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 This is a three-dimensional schematic diagram of a first embodiment of a self-cleaning air purification device.

[0032] Figure 2 This is a structural diagram of embodiment 1 of the self-cleaning air purification device.

[0033] Figure 3 This is a left side view of the first embodiment of the self-cleaning air purification device.

[0034] Figure 4 Schematic diagram of the mesh section of the roller shutter of the first embodiment of the self-cleaning air purification device.

[0035] Figure 5This is a schematic diagram of the sealing section of the roller shutter in Example 1 of the self-cleaning air purification device.

[0036] Figure 6 This is a structural diagram of the shielding component of the first embodiment of the self-cleaning air purification device.

[0037] Figure 7 This is a structural diagram of the shielding component of the second embodiment of the self-cleaning air purification device.

[0038] Figure 8 This is a schematic structural diagram of the shielding component of the third embodiment of the self-cleaning air purification device.

[0039] Description of reference numerals:

[0040] Air duct 1

[0041] Wind 101

[0042] Cleaning chamber 102

[0043] Ventilation duct 103

[0044] Water outlet 104

[0045] Grille 105

[0046] Water retaining plate 106

[0047] Overflow 107

[0048] Diversion port 108

[0049] Occlusion component 2

[0050] Mounting frame 201

[0051] Roller shutter 202

[0052] Mesh Segment 2021

[0053] Sealed Section 2022

[0054] Driving gear 203

[0055] Driven gear 204

[0056] Shaft 205

[0057] Counterweight 206

[0058] Sealing ring 207

[0059] First rotating shaft 208

[0060] Second rotating shaft 209

[0061] Extension spring 210

[0062] Spring shaft 211

[0063] Purification Component 3

[0064] Ultrasonic cleaning components 4 DETAILED DESCRIPTION

[0065] The present invention is further described below by way of examples, but the present invention is not limited to the scope of the examples.

[0066] Example 1

[0067] like Figures 1 to 6 As shown, the present invention discloses a self-cleaning air purification device, including an air duct 1, a purification component 3, an ultrasonic cleaning component 4 and two shielding components 2, the purification component 3 and the ultrasonic cleaning component 4 are arranged in the air duct 1, the outer surface of the air duct 1 has two air outlets 101, the two shielding components 2 are respectively connected to the two air outlets 101 and have a self-cleaning state and a purification state; in the self-cleaning state, the two shielding components 2 respectively cover the two air outlets 101, so that a cleaning cavity 102 is formed between the two shielding components 2 and the air duct 1; in the purification state, the two shielding components 2 are respectively opened to the two air outlets 101, so that a ventilation channel 103 is formed between the shielding components 2 and the air duct 1. By setting a shielding component 2 at the air outlet 101 of the air duct 1, a cleaning chamber 102 is formed between the air duct 1 and the two shielding components 2. The ultrasonic cleaning component 4 is set in the cleaning chamber 102. When in the self-cleaning state, water is injected into the cleaning chamber 102, and the purification component 3 is cleaned by the ultrasonic cleaning component 4, and the water is discharged after cleaning. When in the purification state, the shielding component 2 is opened, and a ventilation channel 103 is formed in the air duct 1 to remove dust and purify the passing air. By setting the shielding component 2, the air duct 1 is switched between the cleaning chamber 102 and the ventilation channel 103. The structure is simple, space is saved, and the steps of disassembling and assembling the purification component 3 are eliminated, which saves time and has a better cleaning effect.

[0068] In this embodiment, the purification component 3 includes a dust collection module and an ionization module, and the number of the dust collection module and the ionization module can be one or more. The two air vents 101 are one air inlet and the other air outlet, which are arranged in the order of air inlet, ionization module, dust collection module, and air outlet. The particles in the air enter the air duct 1 from the air inlet, become charged after passing through the ionization module, and are deflected and captured by the electric field when passing through the dust collection module, thereby achieving the purpose of purifying the air. In the existing automatic cleaning electrostatic dust collection air purifier, in order to save space, only the dust collection module is cleaned, and the ionization module cannot be cleaned. In the present technical solution, the dust collection module and the ionization module can be cleaned at the same time without increasing the volume of the equipment, and the cleaning effect is better.

[0069] The shielding assembly 2 includes a driving member, a transmission member, and a rolling curtain 202. The driving member, the transmission member, and the rolling curtain 202 are all disposed within the ventilation duct 103. The driving member is connected to the transmission member and drives the driving member to move. The transmission member is connected to the rolling curtain 202 and drives the rolling curtain 202 to move, so that the rolling curtain 202 covers the air outlet 101 or opens the air outlet 101. In this embodiment, the driving member is a motor.

[0070] The rolling curtain 202 includes a sealing section 2022 and a mesh section 2021. The rolling curtain 202 is wound around a transmission member. When in the self-cleaning state, the sealing section 2022 covers the air outlet 101. When in the purification state, the mesh section 2021 covers the air outlet 101. The difference between the sealing section 2022 and the mesh section 2021 changes whether the air duct 1 forms a cleaning chamber 102 or a ventilation passage 103. When the sealing section 2022 covers the air outlet 101, a cleaning chamber 102 is formed between the sealing section 2022 and the air duct 1. When the mesh section 2021 covers the air outlet 101, the air duct 1 communicates with the outside world through the mesh of the mesh section 2021, forming a ventilation passage 103. In this embodiment, the roller shutter 202 is made of waterproof cloth that is resistant to aging and has strong toughness. The aperture of the mesh section 2021 is selected according to actual conditions. If the aperture is too large, it will affect the supporting strength of the roller shutter 202, thereby affecting the service life of the roller shutter 202. If the aperture is too small, it will increase air resistance.

[0071] The transmission member includes a meshing driving gear 203 and a driven gear 204. The driving member is connected to the driving gear 203, and the driven gear 204 meshes with the driving gear 203 and rotates in the opposite direction to the driving gear 203. The transmission member also includes a rotating shaft 205. The driving gear 203 and the rotating shaft 205 are located on opposite sides of the air outlet 101. The position and diameter of the rotating shaft 205 must be set to ensure that the roller shutter 202 is opened and closely attached to the grille 105. In this embodiment, the driving gear 203 and the driven gear 204 are rotatably disposed above the air outlet 101, and the rotating shaft 205 is rotatably disposed below the air outlet 101. One end of the rolling curtain 202 is wound around the driving gear shaft of the driving gear 203, and after extending around the rotating shaft 205, the other end is wound around the driven gear shaft of the driven gear 204. The driving gear 203 rotates in the forward direction, causing the rolling curtain 202 to be wound around the driving gear shaft. The driving gear 203 rotates in the reverse direction, driving the driven gear 204 to rotate, causing the rolling curtain 202 to be wound around the driven gear shaft. In this embodiment, in the initial state, the sealing section 2022 of the rolling curtain 202 is wound around the driven gear shaft, and the mesh section 2021 is wound around the driving gear shaft. The unwound portion of the rolling curtain 202 is the sealing section 2022 and mesh section 2021 that are opposite to each other around the rotating shaft 205. In other embodiments, the relative positions of the mesh section 2021 and the sealing section 2022 of the rolling screen 202, as well as the objects around which they are wrapped, are not specifically limited and can be selected based on practical circumstances. Placing the rolling screen 202 within the ventilation duct 103 further saves space. The rolling screen 202 has a sophisticated structure and high stability, improving reliability. The intermeshing driving gear 203 and driven gear 204 offer a simple structure, low cost, and high reliability.

[0072] When in the self-cleaning state, the output end of the driving member drives the driving gear 203 to rotate clockwise, and the rotation of the driving gear 203 causes the driven gear 204 meshing with it to rotate counterclockwise, and the mesh segment 2021 begins to rise and gradually winds around the driving gear shaft, and the sealing segment 2022 wound on the driven gear shaft is released, and the sealing segment 2022 descends, bypasses the rotating shaft 205 and moves upward, replacing the position of the previous mesh segment 2021, so that one of the two opposite surfaces is the sealing segment 2022, and the distance between the sealing segment 2022 and the rotating shaft 205 at the lower part of the air outlet 101 meets the cleaning needs. Preferably, the two opposite sides of the rolling curtain 202 are switched to sealing segments 2022, and a cleaning chamber 102 is formed between the rolling curtain 202 and the air duct 1. At this time, the sealing effect is best. By injecting water into the cleaning chamber 102, when the water injection height meets the cleaning requirements, the ultrasonic cleaning component 4 arranged in the air duct 1 starts to work, and uses ultrasonic waves to clean the purification component 3. The cavitation effect, acceleration effect and straight flow effect of ultrasonic waves in the liquid can have a direct or indirect effect on the liquid and dirt, so that the dirt layer is dispersed, emulsified and peeled off to achieve the cleaning purpose, thereby realizing automatic cleaning of the air purification equipment. The ultrasonic cleaning component 4 includes an ultrasonic generator. In this embodiment, the ultrasonic generator is an ultrasonic vibration plate, which is arranged in the air duct 1 and located below the purification component 3. A water inlet 104 is opened on the air duct 1, and the cleaning chamber 102 is connected to the outside world through the water inlet 104. In the self-cleaning state, water is injected into the cleaning chamber 102 through the water inlet 104. After cleaning is completed, the sewage is discharged through the water inlet 104. There is no specific limitation on the number and opening position of the water inlet 104, and it is selected according to actual conditions. In this embodiment, the water inlet 104 is arranged at the bottom of the air duct 1, and a two-way valve is provided at the water inlet 104 to control the switch of the water inlet 104.

[0073] When in the purification state, the output end of the driving member drives the driving gear 203 to rotate counterclockwise. The rotation of the driving gear 203 causes the driven gear 204 meshing with it to rotate clockwise. The sealing section 2022 begins to rise and gradually wraps around the driven gear shaft. The mesh section 2021 wrapped around the driving gear shaft is released. The mesh section 2021 descends, passes around the rotating shaft 205, and moves upward to replace the previous position of the sealing section 2022. Until the two opposite sides of the rolling curtain 202 are both mesh sections 2021, and the ventilation channel 103 is formed between the rolling curtain 202 and the air duct 1. At this time, the particles in the air enter the ventilation channel 103 through the mesh, pass through the ionization module, and become charged. When passing through the dust collection module, they are deflected and captured by the electric field, thereby achieving the purpose of purifying the air.

[0074] In order to protect the various structures of the shielding assembly 2, the shielding assembly 2 also includes a mounting frame 201, which is connected to the air duct 1 and located at the air outlet 101. The driving member, transmission member and roller shutter 202 are all arranged in the mounting frame 201. At the same time, modularization is achieved, and the modular design facilitates installation and replacement.

[0075] The shielding assembly 2 further includes a sealing ring 207 , which is disposed on the connecting surface between the mounting bracket 201 and the air duct 1 to improve sealing performance.

[0076] The shade assembly 2 also includes a counterweight 206. As the roller shutter 202 moves vertically up and down, the counterweight 206 is connected to the roller shutter 202 and applies a downward force to the roller shutter 202. In this embodiment, the counterweight 206 is located within a groove formed by the roller shutter 202 below the rotating shaft 205, exerting a downward force on the roller shutter 202 through its own weight. The vertical movement of the roller shutter 202 fully utilizes its own weight, and the addition of the counterweight 206 keeps the roller shutter 202 tight, improving its airtightness.

[0077] In order to protect the shielding component 2, improve the structural strength, and provide certain support for the roller shutter 202, a grille 105 is provided on the outside of the shielding component 2, and a guide groove, a water retaining plate 106 and a guide port 108 are provided. The guide groove is provided at the lower part of the grille 105 and is connected to the guide port 108. The guide groove is used to collect a small amount of water leaking from the grille 105, and drain it to the guide port 108 through the guide groove and discharge it through the guide port 108. A water retaining plate 106 is provided on the outside of the guide groove to prevent water from overflowing.

[0078] An overflow port 107 is provided at the upper part of the air duct 1, and the cleaning chamber 102 is connected to the outside through the overflow port 107. By providing the overflow port 107, a large amount of water accumulation in the air purification equipment and force on the top space due to a malfunction is avoided, thereby improving the safety of the ultrasonic cleaning component 4.

[0079] In order to meet the use requirements of dust removal for air with horizontal air intake, the air duct 1 is extended in the horizontal direction, and the two air outlets 101 are located at both ends of the air duct 1.

[0080] In order to improve the automation level of the self-cleaning air purification device, reduce the difficulty of use, and improve the accuracy, the self-cleaning air purification device also includes a controller, which is electrically connected to the purification component 3, the ultrasonic cleaning component 4, and the shielding component 2, and is used to control the switching of the purification component 3, the ultrasonic cleaning component 4, and the shielding component 2 respectively.

[0081] Purification assembly 3 also includes air quality sensors, which are located at the air inlet and outlet and electrically connected to the controller's input. The controller's output is electrically connected to the dust collection module and ionization module. The air quality sensors detect the air quality at the inlet and outlet and transmit digital signals to the controller's input. After comparing the signals with preset values ​​within the controller, the controller outputs control signals to purification assembly 3 and controls the power of the dust collection module and ionization module.

[0082] Ultrasonic cleaning assembly 4 also includes a liquid level sensor, which is disposed within air duct 1 and electrically connected to the input of a controller. The output of the controller is electrically connected to a two-way valve and an ultrasonic generator. The liquid level sensor detects the water level within cleaning chamber 102 and inputs a level signal into the controller. After comparing the level signal with a value set within the controller, the controller controls the operation of the ultrasonic generator and the two-way valve to fill or drain water, ensuring that the water level within cleaning chamber 102 meets the required level.

[0083] The shielding component 2 also includes a limit sensor for detecting the position of the roller blind 202 and electrically connected to the input end of the controller. The output end of the controller is electrically connected to the driving member to control the operation of the shielding component 2 so that the roller blind 202 meets the usage requirements.

[0084] Example 2

[0085] like Figure 7 As shown, the structure of the self-cleaning air purification device in this embodiment 2 is not repeated in the parts that are the same as in the embodiment 1, and only the differences are described. In this embodiment 2, the transmission member includes a first rotating shaft 208 and a clockwork rotating shaft 211. The first rotating shaft 208 and the clockwork rotating shaft 211 are respectively arranged on opposite sides of the air outlet 101. The sealing section 2022 of the rolling curtain 202 is connected to the first rotating shaft 208, and the mesh section 2021 of the rolling curtain 202 is connected to the clockwork rotating shaft 211. The first rotating shaft 208 is arranged on the upper side of the air outlet 101, and the second rotating shaft 209 is arranged on the lower side of the air outlet 101. The first rotating shaft 208 is connected to the driving member. In this embodiment, the first rotating shaft 208 is a driving rotating shaft. In other embodiments, the first rotating shaft 208 may also include a driving rotating shaft and a driven rotating shaft. The driving rotating shaft is connected to the driving member, and the driven rotating shaft is closer to the grille 105 than the driving rotating shaft. One end of the rolling curtain 202 is wound around the driving rotating shaft and passes through the driven rotating shaft to make the rolling curtain 202 taut. The other end of the rolling curtain 202 is wound around the clockwork rotating shaft 211. When the driving rotating shaft rotates, the driven rotating shaft rotates under the friction force of the rolling curtain 202; alternatively, the first rotating shaft 208 may also include gear 1 and gear 2, gear 1 is meshed with gear 2, the driving member is connected to gear 1 to drive gear 1 to rotate, gear 1 rotates to drive gear 2 to rotate, gear 2 includes an axis structure, one end of the rolling curtain 202 is wound around the axis structure of gear 2, and the other end is wound around the clockwork rotating shaft 211.

[0086] When in the purification state, the driving member drives the first rotating shaft 208 to rotate clockwise, so that the sealing section 2022 of the rolling curtain 202 is gradually wound around the first rotating shaft 208. During the rising process of the rolling curtain 202, the clockwork rotating shaft 211 generates a counterclockwise torsional force. The counterclockwise torsional force makes the rolling curtain 202 taut and close to the grille 105 until the mesh section 2021 covers the air outlet 101, so that a ventilation channel 103 is formed between the rolling curtain 202 and the air duct 1.

[0087] When in the self-cleaning state, the first shaft 208 rotates counterclockwise to release the sealing section 2022. The mesh section 2021 is gradually wound around the clockwork shaft 211 by the counterclockwise torsion of the clockwork shaft 211 until the sealing section 2022 covers the air outlet 101, and a cleaning chamber 102 is formed between the roller shutter 202 and the air duct 1.

[0088] In other embodiments, the mesh segment 2021 can also be wound around the first rotating shaft 208, the sealing segment 2022 can be wound around the clockwork rotating shaft 211, or the second rotating shaft 209 can be connected to the driving member, and the first rotating shaft 208 can be the clockwork rotating shaft 211 to meet different needs, which is not specifically limited here.

[0089] One of the first rotating shaft 208 and the second rotating shaft 209 is a clockwork rotating shaft 211. When the rolling shutter 202 is rotated by the other rotating shaft 205, the clockwork rotating shaft 211 is wound up, so that the clockwork rotating shaft 211 generates a reverse torque. Compared with configuring driving parts for the first rotating shaft 208 and the second rotating shaft 209 respectively, using the clockwork rotating shaft 211 saves one driving part, has lower cost and simpler structure.

[0090] Example 3

[0091] like Figure 8As shown, the structure of the self-cleaning air purification device in this embodiment 3 is the same as that in the embodiment 1 and the parts are not repeated. Only the differences are described. In this embodiment 3, the shielding assembly 2 also includes an elastic member, which is connected to the air duct 1. In this embodiment, the elastic member is a tension spring 210. The mesh section 2021 of the rolling curtain 202 is wound around the first rotating shaft 208. The first rotating shaft 208 is connected to the driving member. The sealing section 2022 of the rolling curtain 202 is connected to the tension spring 210 around the second rotating shaft 209. The driving member drives the first rotating shaft 208 to rotate so that the rolling curtain 202 is wound around the first rotating shaft 208. The rolling curtain 202 acts on the tension spring 210 to deform the tension spring 210. When the first rotating shaft 208 stops rotating or rotates in the opposite direction, the elastic member acts on the rolling curtain 202. Preferably, the sealing section 2022 of the rolling curtain 202 is wound around the second rotating shaft 209. One end of the tension spring 210 is connected to a soft rope, and the soft rope is wound around the second rotating shaft 209. In this embodiment, the first rotating shaft 208 is a driving rotating shaft. In other embodiments, the first rotating shaft 208 may also include a driving rotating shaft and a driven rotating shaft. The driving rotating shaft is connected to the driving member, and the driven rotating shaft is closer to the grille 105 than the driving rotating shaft. One end of the rolling curtain 202 is wrapped around the driving rotating shaft and passes through the driven rotating shaft to make the rolling curtain 202 taut. When the driving rotating shaft rotates, the driven rotating shaft rotates under the friction force of the rolling curtain 202; alternatively, the first rotating shaft 208 may also include gear 1 and gear 2, gear 1 is meshed with gear 2, the driving member is connected to gear 1 to drive gear 1 to rotate, gear 1 rotates to drive gear 2 to rotate, gear 2 includes an axis structure, and one end of the rolling curtain 202 is wrapped around the axis structure of gear 2.

[0092] When in the self-cleaning state, the driving member drives the first rotating shaft 208 to rotate clockwise, so that the mesh section 2021 of the rolling curtain 202 is gradually wound around the first rotating shaft 208, and drives the second rotating shaft 209 to rotate clockwise. The soft rope wound on the falling rotating shaft 205 acts on the tension spring 210, causing the tension spring 210 to deform, and the sealing section 2022 gradually rises until it reaches a height that meets the cleaning requirements. At this time, a cleaning chamber 102 is formed between the rolling curtain 202 and the air duct 1.

[0093] When in the purification state, the driving member drives the first rotating shaft 208 to rotate counterclockwise, gradually releasing the mesh section 2021, and the second rotating shaft 209 rotates counterclockwise due to the force generated by the tension spring 210 to restore the deformation, so that the sealing section 2022 is gradually wrapped around the second rotating shaft 209 until the mesh section 2021 covers the air outlet 101. At this time, a ventilation channel 103 is formed between the roller shutter 202 and the air duct 1.

[0094] Although specific embodiments of the present invention have been described above, those skilled in the art will appreciate that these are merely illustrative and that the scope of the present invention is defined by the appended claims. Those skilled in the art may make various changes or modifications to these embodiments without departing from the principles and essence of the present invention, and such changes and modifications are intended to fall within the scope of the present invention.

Claims

1. A self-cleaning air purification device, comprising an air duct and a purification component, wherein the purification component is arranged in the air duct, and the outer surface of the air duct has two air outlets, characterized in that: The self-cleaning air purification device further includes an ultrasonic cleaning component and two shielding components, wherein the ultrasonic cleaning component is arranged in the air duct, and the two shielding components are respectively connected to the two air outlets and have a self-cleaning state and a purification state; In the self-cleaning state, the two shielding components respectively cover the two air outlets, so that a cleaning cavity is formed between the two shielding components and the air duct; In the purification state, the two shielding components are respectively opened at the two air outlets, so that a ventilation channel is formed between the shielding components and the air duct.

2. The self-cleaning air purification device according to claim 1, characterized in that The shielding assembly includes a driving member, a transmission member and a rolling curtain. The driving member, the transmission member and the rolling curtain are all arranged in the ventilation channel. The driving member is connected to the transmission member and drives the transmission member to move. The transmission member is connected to the rolling curtain and drives the rolling curtain to move, so that the rolling curtain covers the air outlet or opens the air outlet.

3. The self-cleaning air purification device according to claim 2, characterized in that The rolling curtain includes a sealing section and a mesh section. The rolling curtain is wound around the transmission member. When in the self-cleaning state, the sealing section covers the air outlet. When in the purification state, the mesh section covers the air outlet.

4. The self-cleaning air purification device according to claim 2, characterized in that: The transmission member includes a meshing driving gear and a driven gear, the driving member is connected to the driving gear, the driven gear is meshed with the driving gear and rotates in the opposite direction to the driving gear, the transmission member also includes a rotating shaft, the driving gear and the rotating shaft are respectively arranged on two opposite sides of the air outlet, one end of the rolling curtain is wound around the driving gear shaft of the driving gear, and the other end is wound around the driven gear shaft of the driven gear after extending around the rotating shaft. The rolling curtain is wound around the driving gear shaft through the forward rotation of the driving gear, and the driving gear rotates in the reverse direction, driving the driven gear to rotate, so that the rolling curtain is wound around the driven gear shaft.

5. The self-cleaning air purification device according to claim 2, characterized in that: The transmission member includes a first rotating shaft and a second rotating shaft, and the first rotating shaft and the second rotating shaft are respectively arranged on two opposite sides of the air outlet, one end of the rolling curtain is connected to the first rotating shaft, and the other end of the rolling curtain is connected to the second rotating shaft. The first rotating shaft is connected to the driving member so that the rolling curtain is gradually wound around the first rotating shaft as the first rotating shaft rotates, and / or the second rotating shaft is connected to the driving member so that the rolling curtain is gradually wound around the second rotating shaft as the second rotating shaft rotates.

6. The self-cleaning air purification device according to claim 5, characterized in that: One of the first rotating shaft and the second rotating shaft is connected to the driving member, and the other is a spring rotating shaft. The driving member drives the first rotating shaft or the second rotating shaft to rotate, and the spring rotating shaft generates a reverse torque through the rolling curtain.

7. The self-cleaning air purification device according to claim 5, characterized in that The shielding assembly also includes an elastic member, which is connected to the air duct. One end of the rolling curtain is wound around the first rotating shaft, which is connected to the driving member. The other end of the rolling curtain is connected to the elastic member by bypassing the second rotating shaft. The driving member drives the first rotating shaft to rotate so that the rolling curtain is wound around the first rotating shaft. The rolling curtain acts on the elastic member to deform the elastic member. When the first rotating shaft stops rotating or rotates in the opposite direction, the elastic member acts on the rolling curtain.

8. The self-cleaning air purification device according to claim 2, characterized in that: The shielding assembly further includes a mounting frame, which is connected to the air duct and located at the air outlet. The driving member, the transmission member and the rolling curtain are all arranged in the mounting frame.

9. The self-cleaning air purification device according to claim 2, characterized in that: The shielding assembly further includes a counterweight, and the rolling curtain moves up and down in a vertical direction. The counterweight is connected to the rolling curtain and applies a downward force to the rolling curtain.

10. The self-cleaning air purification device according to claim 1, characterized in that: The air duct is extended in a horizontal direction, and the two air outlets are located at two ends of the air duct.

11. The self-cleaning air purification device according to claim 1, characterized in that: The self-cleaning air purification device also includes a controller, which is electrically connected to the purification component, the ultrasonic cleaning component and the shielding component, and is used to control the switches of the purification component, the ultrasonic cleaning component and the shielding component respectively.

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