A germicidal multipurpose air purifier

Abstract

The application discloses a sterilization multipurpose air purifier, which comprises an air inlet device, an air outlet device, a base and a UV sterilization device, wherein the air inlet device comprises an air inlet, a filter screen and an air inlet channel formed on the inner side of the filter screen; the air inlet device further comprises support columns which are uniformly arranged on the periphery of the air inlet device and comprise at least three; the UV sterilization device is arranged on the inner side of the support columns and located outside the filter screen; an upper filter screen pressing cover is fixedly connected with the upper end of the support columns and is provided with an upper air inlet channel outlet hole; a shell is sleeved on the outer side of the support columns and clamped between the upper filter screen pressing cover and the base, and the shell is provided with the air inlet; and the filter screen is arranged on the inner side of the support columns and is pressed between the upper filter screen pressing cover and the base. The sterilization multipurpose air purifier can be used for purifying air.

Description

TECHNICAL FIELD

[0001] The present application relates to an air purifier, more particularly to a sterilization multipurpose air purifier. BACKGROUND

[0002] The existing air purifier generally takes air from the side, and discharges air from the upper part of the air purifier after filtration, so as to purify air such as indoor air, air in the interior of a car, etc. by circulating filtration of the air. However, since the filter screen of the air purifier only plays a role of filtering dust, it cannot kill harmful bacteria contained in the air, and thus the purification effect needs to be improved. SUMMARY

[0003] The present application provides a sterilization multipurpose air purifier in order to solve the technical problem that the existing air purifier cannot kill harmful bacteria in the air.

[0004] In order to solve the above technical problem, the present application adopts the technical scheme of designing a sterilization multipurpose air purifier, which comprises:

[0005] An air inlet device, which comprises an air inlet, a filter screen arranged on the inner side of the air inlet, and an air inlet channel formed on the inner side of the filter screen;

[0006] An upper air outlet device, which is arranged above the air inlet device, and comprises an upper air outlet, an upper air outlet channel communicated with the upper air outlet and the air inlet channel, and an upper fan arranged in the upper air outlet channel;

[0007] A base, which is arranged below the air inlet device;

[0008] The sterilization multipurpose air purifier further comprises an ultraviolet sterilization device;

[0009] The air inlet device further comprises:

[0010] Support columns, which comprise at least three and are uniformly arranged on the periphery of the air inlet device, and the ultraviolet sterilization device is arranged on the inner side of the support columns and located outside the filter screen;

[0011] An upper filter screen pressing cover, which is fixedly connected with the upper end of the support column, and an air inlet channel upper outlet hole is arranged on the upper filter screen pressing cover;

[0012] A shell, which is sleeved on the outer side of the support column and clamped between the upper filter screen pressing cover and the base, and the air inlet is arranged on the shell;

[0013] The filter screen is arranged on the inner side of the support column and is pressed between the upper filter screen pressing cover and the base.

[0014] The base is a lower air outlet device, which is arranged below the air inlet device, the lower air outlet device comprises a lower air outlet, a lower air duct communicating with the lower air outlet and the air inlet duct, and a lower fan arranged in the lower air duct;

[0015] The air inlet device further comprises:

[0016] A lower filter screen pressing cover is fixedly connected with the lower end of the support column, and an air inlet duct lower outlet hole is arranged on the lower filter screen pressing cover;

[0017] The filter screen is arranged on the inner side of the support column and is pressed between the upper filter screen pressing cover and the lower filter screen pressing cover.

[0018] The shell is a metal shell, and a hollow mesh hole is arranged on the shell, and the mesh hole constitutes the air inlet.

[0019] The support column comprises four, the cross section of the air inlet device is a quadrangular rounded square, and the support column is arranged on the four corners of the square respectively; the support column is an aluminum profile pipe, the side surface thereof is rounded, and the inner side of the four corners of the shell is closely attached, the upper end and the lower end thereof are fixedly connected with the upper filter screen pressing cover and the lower filter screen pressing cover respectively through screws.

[0020] The sterilization multi-purpose air purifier further comprises a negative ion generator arranged on the upper air outlet device and a wireless charging device.

[0021] The lower end side of the upper filter screen pressing cover is provided with an upper shell positioning part recessed towards the inner side, the upper end side of the lower filter screen pressing cover is provided with a lower shell positioning part recessed towards the inner side, the upper end of the shell is sleeved on the upper shell positioning part, and the lower end of the shell is sleeved on the lower shell positioning part.

[0022] The upper air outlet device comprises:

[0023] An upper air duct surface cover, the upper air outlet is arranged on the side surface of the upper air duct surface cover;

[0024] An upper air duct upper cover is accommodated in the upper air duct surface cover, and the side surface of the upper air duct upper cover is provided with an upper cover air outlet opposite to the upper air outlet;

[0025] An upper air duct lower cover is connected with the upper air duct upper cover, the upper air duct lower cover is provided with a lower cover air inlet communicating with the upper cover air outlet, and the upper fan is accommodated and fixed between the upper air duct upper cover and the upper air duct lower cover.

[0026] The lower air outlet device comprises:

[0027] A lower air duct surface cover, the lower air outlet is arranged on the side surface of the lower air duct surface cover;

[0028] An upper cover of the lower air duct is accommodated in the lower air duct cover, and a side surface of the upper cover of the lower air duct is provided with an upper cover air outlet opposite to the lower air outlet;

[0029] A lower cover of the lower air duct is connected with the upper cover of the lower air duct, and an upper surface of the lower cover of the lower air duct is provided with a lower cover air inlet communicated with the lower cover air outlet, and the lower air fan is accommodated and fixed between the upper cover of the lower air duct and the lower cover of the upper air duct.

[0030] An upper cover clasp is arranged at an inner bottom of the upper air duct cover, and an upper cover clasp hook is arranged at a side surface of the lower cover of the upper air duct, the upper air duct cover and the lower cover of the upper air duct are connected through the upper cover clasp and the upper cover clasp hook, and the upper cover of the upper air duct and the lower cover of the upper air duct are fixedly connected through screws;

[0031] A lower cover clasp is arranged at an inner bottom of the lower air duct cover, and a lower cover clasp hook is arranged at a side surface of the lower cover of the lower air duct, the lower air duct cover and the lower cover of the lower air duct are connected through the lower cover clasp and the lower cover clasp hook, and the upper cover of the lower air duct and the lower cover of the lower air duct are fixedly connected through screws.

[0032] An upper clamping groove is arranged on the upper filter screen pressing cover of the air inlet device, a lower clamping groove is arranged on the lower filter screen pressing cover, an upper clamping block is arranged on the lower cover of the upper air duct, and a lower clamping block is arranged on the lower cover of the lower air duct; the upper clamping block is inserted into the upper clamping groove and slid into the upper clamping groove to achieve the clasp connection between the upper air outlet device and the air inlet device, and the lower clamping block is inserted into the lower clamping groove and slid into the lower clamping groove to achieve the clasp connection between the lower air outlet device and the air inlet device;

[0033] An upper accommodation groove is arranged on the upper filter screen pressing cover, and an inwardly recessed upper positioning groove is arranged on a lower surface of the lower cover of the upper air duct; a lower accommodation groove is arranged on the lower filter screen pressing cover, and an inwardly recessed lower positioning groove is arranged on an upper surface of the lower cover of the lower air duct;

[0034] The sterilization multi-purpose air purifier further comprises two locking devices respectively connected between the air inlet device and the upper air outlet device and between the air inlet device and the lower air outlet device, the locking device comprises a sliding block upper cover, a locking sliding block capable of sliding up and down relative to the sliding block upper cover, and a sliding block spring connected with the locking sliding block; an upper end of the locking sliding block is provided with a positioning protrusion; an outer side surface of the locking sliding block is provided with a sliding block button exposed to an outer surface of the sterilization multi-purpose air purifier;

[0035] Two locking devices are arranged in the upper receiving groove and the lower receiving groove respectively, and after the upper air outlet device and the air inlet device are buckled, the slider button is released, the locking slider is inserted into the upper positioning groove under the pressing force of the slider spring, and relative movement between the air inlet device and the upper air outlet device is prevented in the case that the locking slider is not unlocked; after the lower air outlet device and the air inlet device are buckled, the slider button is released, the locking slider is inserted into the lower positioning groove under the pressing force of the slider spring, and relative movement between the air inlet device and the lower air outlet device is prevented in the case that the locking slider is not unlocked.

[0036] The base is a Bluetooth speaker device arranged below the air inlet device, the Bluetooth speaker device comprises a sound cover and a loudspeaker fixed in the sound cover, a filter screen positioning portion is arranged on the sound cover, a loudspeaker positioning portion is arranged at the bottom of the filter screen positioning portion, and the filter screen is positioned on the filter screen positioning portion and located on the loudspeaker.

[0037] The sterilizing multipurpose air purifier can sterilize and disinfect the entering air, and can also sterilize and disinfect the filter screen, so that the air filtered by the filter screen is prevented from being secondarily polluted, the air filtered by the filter screen is blown out, harmful bacteria in the air are effectively killed, and the purified air is more hygienic. In addition, the air inlet device is supported by the support column, the shell is sleeved outside the support column, the filter screen is arranged inside the support column and is compressed between the upper filter screen compression cover and the base, and the shell is clamped between the upper air outlet device and the base, so that the thickness of the shell can be effectively thinned, and the structure is novel and compact. BRIEF DESCRIPTION OF DRAWINGS

[0038] The application will be described in detail below with reference to the embodiments and the drawings, in which:

[0039] Figure 1 is a structural view of the sterilizing multipurpose air purifier according to the first embodiment of the application;

[0040] Figure 2 is an exploded view of the sterilizing multipurpose air purifier according to the first embodiment of the application;

[0041] Figure 3 is a sectional view of the sterilizing multipurpose air purifier according to the first embodiment of the application after the shell and the filter screen are removed;

[0042] Figure 4 is a structural view of the lower filter screen compression cover of the sterilizing multipurpose air purifier according to the first embodiment of the application;

[0043] Figure 5 is a structural view of the locking device of the sterilizing multipurpose air purifier according to the first embodiment of the application;

[0044] Figure 6 is the structural diagram of the upper air duct lower cover of the sterilization multipurpose air purifier of the present application, embodiment 1;

[0045] Figure 7 is the structural diagram of the sterilization multipurpose air purifier of the present application, embodiment 2;

[0046] Figure 8 is the sectional view of the sterilization multipurpose air purifier of the present application, embodiment 2 after removing the shell;

[0047] Figure 9 is the exploded view of the base of the sterilization multipurpose air purifier of the present application, embodiment 2. DETAILED DESCRIPTION

[0048] The specific embodiments of the present application are further described below in conjunction with the accompanying drawings:

[0049] Embodiment 1

[0050] Please see Figures 1 to 6 The sterilization multipurpose air purifier of the present application comprises an air inlet device 1, an upper air outlet device 2, a base 3, and a UV sterilization device 8. In the specific embodiment, the base 3 is a lower air outlet device 3. Among them:

[0051] The air inlet device 1 comprises an air inlet 11, a filter screen 12 arranged on the inner side of the air inlet, and an air inlet duct 13 formed on the inner side of the filter screen. The filter screen mainly plays a role in filtering dust in the air and purifying the air. In the specific embodiment, the filter screen is in the shape of a cylindrical tube, and the air inlet duct 13 is arranged at the center of the cylindrical tube.

[0052] The upper air outlet device 2 is arranged above the air inlet device, and the upper air outlet device 2 comprises an upper air outlet 21, an upper air outlet duct 22 communicating with the upper air outlet 21 and the air inlet duct 13, and an upper air fan 23 arranged in the upper air outlet duct.

[0053] In order to further improve the air quality, the sterilization multipurpose air purifier further comprises a negative ion generator 28 arranged on the upper air outlet device, and the negative ions generated by the negative ion generator further purify the air.

[0054] In order to make the air purifier more convenient to use, the sterilization multipurpose air purifier further comprises a wireless charging device 29 arranged on the upper air outlet device, so that wireless charging can be realized. The wireless charging device 29 comprises a coil support 291 and a wireless charging coil 292 arranged on the coil support 291. The coil support 291 is fixed on a circuit board 293, and the wireless charging coil 292 is electrically connected with the circuit board 293.

[0055] In order to detect the air quality, an air detection module 20 is further arranged on the upper air outlet device.

[0056] A lower air outlet device 3 is arranged below the air inlet device, and the lower air outlet device 3 comprises a lower air outlet 31, a lower air duct 32 communicating the lower air outlet 31 and the air inlet duct 13, and a lower air fan 33 arranged in the lower air duct.

[0057] The ultraviolet sterilization device 8 is arranged on the inner side of the support column and located outside the filter screen. In this embodiment, the inner side of the support column forms a concave sterilization positioning part 81, and the ultraviolet sterilization device is fixed on the sterilization positioning part 81. The ultraviolet sterilization device can sterilize and disinfect the entering air and the filter screen at the same time, which can not only sterilize the air, but also prevent the secondary pollution of the filtered air caused by the harmful bacteria accumulated on the filter screen. The ultraviolet sterilization device 8 can be implemented by using an LED ultraviolet lamp.

[0058] During purification, the upper air fan and the lower air fan work, air enters from the air inlet 11, is sterilized and disinfected by the ultraviolet sterilization device 8, is filtered by the filter screen 12, and then enters the air inlet duct inside the filter screen. The filtered air passes through the upper air outlet duct and the lower air outlet duct, and the purified air is blown out from the upper air outlet and the lower air outlet, respectively.

[0059] The sterilization multi-purpose air purifier of the present application is provided with an upper air outlet device and a lower air outlet device, and the air inlet device is arranged between the upper air outlet device and the lower air outlet device, and shares the air inlet duct. The upper air outlet duct and the lower air outlet duct are communicated with the air inlet duct, and the upper air fan is arranged in the upper air outlet duct, and the lower air fan is arranged in the lower air outlet duct. Therefore, the air purifier can use smaller air fans, and the two air fans and the two air outlet ducts can significantly improve the purification speed, and the volume is smaller, which is very suitable for vehicle use.

[0060] The air inlet device further comprises a support column 14, an upper filter screen pressing cover 15, a lower filter screen pressing cover 16, and a shell 17. Among them:

[0061] The support column 14 comprises at least three and is uniformly arranged on the periphery of the air inlet device. The support column 14 mainly plays a supporting role, so that the air inlet device is no longer supported by the structure of the shell itself like the existing air purifier, and the shell can be designed into a very thin plate. In this embodiment, the support column comprises four, and the cross section of the air inlet device is a quadrilateral rounded square, and the support column is arranged on the four corners of the square, respectively. Of course, the support column 14 can also be three, and the cross section of the air inlet device is circular. Of course, the present application does not limit the specific shape of the support column and the cross section of the air inlet device, as long as the support column can support the whole shell.

[0062] In the embodiment, the support column is an aluminum profile pipe, the side surface of which is rounded and closely contacts the inner side of the four corners of the shell, and the upper end and the lower end thereof are fixedly connected with the upper filter screen pressing cover and the lower filter screen pressing cover respectively through screws.

[0063] The sterilization multi-purpose air purifier can sterilize the incoming air and the filter screen, prevent the air filtered by the filter screen from being secondarily polluted, effectively kill the harmful bacteria in the air, and make the purified air more sanitary. In addition, the air inlet device is supported by the support column, the shell is sleeved on the outer side of the support column, the filter screen is arranged on the inner side of the support column and is pressed between the upper filter screen pressing cover and the base, and the shell is clamped between the upper air outlet device and the base, so that the thickness of the shell can be effectively thinned, and the structure is novel and compact.

[0064] The upper filter screen pressing cover 15 is fixedly connected with the upper end of the support column, and an air inlet passage upper outlet hole 151 is arranged on the upper filter screen pressing cover.

[0065] The lower filter screen pressing cover 16 is fixedly connected with the lower end of the support column, and an air inlet passage lower outlet hole 161 is arranged on the lower filter screen pressing cover.

[0066] The filter screen 12 is arranged on the inner side of the support column and is pressed between the upper filter screen pressing cover and the lower filter screen pressing cover. In the embodiment, the center of the cylindrical filter screen is concentric with the air inlet passage lower outlet hole 161 and the air inlet passage upper outlet hole 151.

[0067] The shell 17 is sleeved on the outer side of the support column and is clamped between the upper filter screen pressing cover and the lower filter screen pressing cover, the shell is provided with a hollow mesh hole 171, and the mesh hole 171 constitutes the air inlet 11. In the embodiment, the mesh hole is distributed on the side surface of the shell. Of course, the mesh hole can be distributed only on some parts of the side surface of the shell or on some side surfaces of the four side surfaces of the shell, but in order to increase the area of the air inlet, it is preferred that the mesh hole is distributed on the side surface of the shell. The shell is usually made of plastic material, but since the support column is used as the main support in the application, the shell no longer plays a supporting role, so the shell can be made very thin to save material and cost. However, since the shell itself will still bear certain external force, such as the force of holding by hand, if the shell is made of plastic material, the thickness thereof still needs to be maintained at a relatively thick degree. In order to match the special support structure design of the application, the shell is a metal shell, such as iron sheet or aluminum sheet, which can be made very thin and has appropriate strength. In addition, the metal shell has better texture than the plastic shell, and the metal can be treated to have more colorful color effects, and the surface can be hollowed to have different shapes of breathable mesh holes.

[0068] In order to facilitate the positioning of the shell during the installation process, the upper end side of the upper filter screen pressing cover 15 is provided with an upper shell positioning portion 152 recessed towards the inside, and the lower end side of the lower filter screen pressing cover 16 is provided with a lower shell positioning portion 162 recessed towards the inside, the upper end of the shell is sleeved on the upper shell positioning portion, and the lower end of the shell is sleeved on the lower shell positioning portion.

[0069] The upper air outlet device 2 further comprises an upper air duct surface cover 24, an upper air duct upper cover 25 and an upper air duct lower cover 26. The upper air outlet is arranged on the side surface of the upper air duct surface cover.

[0070] The upper air duct upper cover 25 is accommodated in the upper air duct surface cover, and the side surface of the upper air duct upper cover is provided with an upper cover air outlet 251 opposite to the upper air outlet.

[0071] The upper air duct lower cover 26 is connected with the upper air duct upper cover, and the upper air duct lower cover is provided with a lower cover air inlet 261 communicated with the upper cover air outlet, and the upper air fan is accommodated and fixed between the upper air duct upper cover and the upper air duct lower cover.

[0072] The inside bottom of the upper air duct surface cover 24 is provided with an upper surface cover buckle 241, the side surface of the upper air duct lower cover 26 is provided with an upper surface cover hook 262, the upper air duct surface cover and the upper air duct lower cover are connected through the upper surface cover buckle and the upper surface cover hook buckle, and the upper air duct upper cover and the upper air duct lower cover are fixedly connected through screws.

[0073] The lower air outlet device 3 further comprises a lower air duct surface cover 34, a lower air duct upper cover 35 and a lower air duct lower cover 36. The lower air outlet is arranged on the side surface of the lower air duct surface cover.

[0074] The lower air duct upper cover 35 is accommodated in the lower air duct surface cover, and the side surface of the lower air duct upper cover is provided with an upper cover air outlet 351 opposite to the lower air outlet.

[0075] The lower air duct lower cover 36 is connected with the lower air duct upper cover, and the lower air duct lower cover is provided with a lower cover air inlet 361 communicated with the lower cover air outlet, and the lower air fan is accommodated and fixed between the lower air duct upper cover and the lower air duct lower cover.

[0076] The inside bottom of the lower air duct surface cover 34 is provided with a lower surface cover buckle 341, the side surface of the lower air duct lower cover 36 is provided with a lower surface cover hook 362, the lower air duct surface cover and the lower air duct lower cover are connected through the lower surface cover buckle and the lower surface cover hook buckle, and the lower air duct upper cover and the lower air duct lower cover are fixedly connected through screws.

[0077] In order to facilitate cleaning and replacement of the filter screen, the air inlet device is detachably connected to the upper air outlet device and the lower air outlet device. The air inlet device and the upper air outlet device and the lower air outlet device can be detachably connected through threaded connection, buckle connection, etc. In the embodiment, the upper part of the air inlet device 1 is provided with an upper clamping groove 153, and the lower part is provided with a lower clamping groove 163. The lower part of the upper air outlet device is provided with an upper clamping block 263, and the upper part of the lower air outlet device is provided with a lower clamping block 363. When connected, the upper clamping block 263 is inserted into the upper clamping groove 153 and slides into the upper clamping groove to achieve buckle connection of the upper air outlet device and the air inlet device, and the lower clamping block 363 is inserted into the lower clamping groove 163 and slides into the lower clamping groove to achieve buckle connection of the lower air outlet device and the air inlet device.

[0078] In the embodiment, the upper clamping groove 153 is arranged on the upper filter screen pressing cover 15, and the lower clamping groove 163 is arranged on the lower filter screen pressing cover 16. The upper clamping block 263 is arranged on the upper air duct lower cover 26, and the lower clamping block 363 is arranged on the lower air duct lower cover 36.

[0079] In order to further prevent the air inlet device from being accidentally detached from the upper air outlet device and the lower air outlet device, a loosening prevention locking structure is arranged between the air inlet device and the upper air outlet device and the lower air outlet device. The loosening prevention locking structure is mainly used to prevent the air inlet device from being detached from the upper air outlet device and the lower air outlet device due to relative movement between the air inlet device and the upper air outlet device and the lower air outlet device when the loosening prevention locking structure is not unlocked.

[0080] In the embodiment, the upper filter screen pressing cover 15 is provided with an upper accommodating groove 154, and the lower surface of the upper air duct lower cover 26 is provided with an inwardly recessed upper positioning groove 264. The lower filter screen pressing cover 16 is provided with a lower accommodating groove 164, and the upper surface of the lower air duct lower cover 36 is provided with an inwardly recessed lower positioning groove 364.

[0081] The locking device 4 includes a slider upper cover 41, a locking slider 42 that can slide up and down relative to the slider upper cover 41, and a slider spring 43 connected to the locking slider. The upper end of the locking slider is provided with a positioning protrusion 44. In the embodiment, the slider spring 43 is sleeved on the protruding column 421 arranged at the lower end of the locking slider. The outer side of the locking slider is provided with a slider button 422 that exposes the outer surface of the sterilizing multipurpose air purifier.

[0082] Before installing the air inlet device and the upper air outlet device, the locking spring is sleeved on the locking slider, the locking slider is inserted on the slider upper cover, and the locking device is arranged in the upper accommodation groove 154. Then the slider button 422 is pressed downward, the locking slider slides downward. Then the upper clamping block 263 is inserted into the upper clamping groove 153 and slides into the upper clamping groove to realize the clamping connection of the upper air outlet device and the air inlet device. Finally, the slider button 422 is released, the locking slider 42 moves upward under the pressing force of the slider spring 43, and the positioning lug 44 is inserted into the upper positioning groove 264, so that the relative movement between the air inlet device and the upper air outlet device is prevented under the condition that the locking slider is not unlocked.

[0083] Similarly, before installing the air inlet device and the lower air outlet device, the locking spring is sleeved on the locking slider, the locking slider is inserted on the slider upper cover, and the locking device is arranged in the lower accommodation groove 164. Then the slider button 422 is pressed upward, the locking slider slides upward. Then the lower clamping block 363 is inserted into the lower clamping groove 163 and slides into the lower clamping groove to realize the clamping connection of the lower air outlet device and the air inlet device. Finally, the slider button 422 is released, the locking slider 42 moves downward under the pressing force of the slider spring 43, and the positioning lug 44 is inserted into the lower positioning groove 364, so that the relative movement between the air inlet device and the upper air outlet device is prevented under the condition that the locking slider is not unlocked.

[0084] The sterilization multi-purpose air purifier is characterized in that the upper air outlet device, the lower air outlet device and the air inlet device are arranged, the air inlet device is arranged between the upper air outlet device and the lower air outlet device, the air inlet channel, the upper air outlet channel and the lower air outlet channel are communicated, the upper air fan is arranged in the upper air outlet channel, and the lower air fan is arranged in the lower air outlet channel. Therefore, the air purifier can use smaller air fans, two air fans and two air outlet channels are arranged, the purification speed is significantly improved, the volume is small, and the air purifier is very suitable for vehicle use.

[0085] Example two

[0086] Please see Figure 7 , Figure 8 and Figure 9 The difference between the embodiment and the embodiment one is that the base 3 is a Bluetooth sound box device.

[0087] The bactericidal multipurpose air purifier comprises an air inlet device 1, an air outlet device 2 and a Bluetooth sound box device 3. The Bluetooth sound box device 3 is arranged below the air inlet device, and comprises a sound cover 37 and a loudspeaker 38 fixed in the sound cover. A filter screen positioning part 379 is arranged on the sound cover 37, and comprises a filter screen support plate 378 and a side plate 377. A filter screen is supported on the filter screen support plate and sleeved on the inner side of the side plate 377. A loudspeaker positioning part 39 for fixing the loudspeaker is arranged at the bottom of the filter screen positioning part. In the embodiment, the loudspeaker positioning part is a cover bottom plate fixed at the bottom of the sound cover. The loudspeaker 38 is fixed on the positioning column 391 of the cover bottom plate 39 by screws. The filter screen 12 is positioned on the filter screen positioning part and above the loudspeaker. In the embodiment, the loudspeaker is below the filter screen and faces the air inlet channel 13.

[0088] A gasket 30 is arranged at the bottom of the sound cover for convenient placement.

[0089] The upper end side of the sound cover 37 is provided with an inwardly recessed lower housing positioning part 371. The upper end of the housing 17 is sleeved on the upper housing positioning part 152, and the lower end is sleeved on the lower housing positioning part. The sound cover 37 is fixedly connected with the lower end of the support column 14. The filter screen is arranged on the inner side of the support column and is compressed between the upper filter screen compression cover 15 and the sound cover 37. The upper end and the lower end of the support column are fixedly connected with the upper filter screen compression cover 15 and the sound cover 37 respectively by screws.

[0090] The Bluetooth sound box device is arranged below the air inlet device, and the filter screen positioning part is arranged on the sound cover. The loudspeaker positioning part is arranged at the bottom of the filter screen positioning part. The filter screen is positioned on the filter screen positioning part and above the loudspeaker. Therefore, the air purifier not only has the sound box function, but also combines the Bluetooth sound box with the air purifier well, has compact structure, small volume and is convenient to move.

[0091] The above only describes the preferred embodiments of the present application and is not used to limit the present application. Any modification, equivalent replacement and improvement within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A multi-purpose air purifier with sterilization function, comprising: An air intake device, the air intake device including an air inlet, a filter screen disposed inside the air inlet, and an air intake duct formed inside the filter screen; An upper air outlet device is provided above the air inlet device. The upper air outlet device includes an upper air outlet, an upper air outlet duct connecting the upper air outlet and the air inlet duct, and an upper fan provided in the upper air outlet duct. A base is located below the air intake device; The multi-purpose air purifier is characterized in that it further includes an ultraviolet sterilization device; The air intake device also includes: The support column includes at least three columns, which are evenly arranged around the air inlet device. The ultraviolet sterilization device is located on the inner side of the support column and outside the filter screen. The inner side of the support column forms a recessed sterilization positioning part, and the ultraviolet sterilization device is fixed on the sterilization positioning part. The upper filter screen pressing cover is fixedly connected to the upper end of the support column, and the upper filter screen pressing cover is provided with an air inlet outlet hole; A housing is fitted onto the outer side of the support column and secured between the upper filter screen clamping cover and the base; the housing is provided with the air inlet. The filter screen is disposed inside the support column and pressed between the upper filter screen pressing cover and the base; The base is a bottom air outlet device, which is located below the air inlet device. The bottom air outlet device includes a bottom air outlet, a bottom air outlet duct connecting the bottom air outlet and the air inlet duct, and a bottom air fan located in the bottom air outlet duct. The air intake device also includes: The lower filter screen clamping cover is fixedly connected to the lower end of the support column, and the lower filter screen clamping cover is provided with an air inlet lower outlet hole; The filter screen is disposed inside the support column and pressed between the upper filter screen pressing cover and the lower filter screen pressing cover; The support column includes four columns. The cross-section of the air inlet device is a square with rounded corners. The support column is respectively located at the four corners of the square. The support column is a profile aluminum tube with rounded corners on its sides and is tightly attached to the inner sides of the four corners of the housing. Its upper and lower ends are fixedly connected to the upper filter screen pressing cover and the lower filter screen pressing cover respectively by screws. The lower side of the upper filter screen pressing cover is provided with an inwardly recessed upper housing positioning part, and the upper side of the lower filter screen pressing cover is provided with an inwardly recessed lower housing positioning part. The upper end of the housing is fitted onto the upper housing positioning part, and its lower end is fitted onto the lower housing positioning part. The upper air outlet device includes: The upper air duct cover has an upper air outlet located on the side of the upper air duct cover. An upper air duct cover is housed within an upper air duct face cover, and an upper air duct cover air outlet is provided on the side of the upper air duct cover, which is directly opposite the upper air outlet. The upper air duct lower cover is connected to the upper air duct upper cover. The upper air duct lower cover is provided with a lower cover air inlet that communicates with the air outlet of the upper cover. The upper fan is housed and fixed between the upper air duct upper cover and the upper air duct lower cover. The lower air outlet device includes: The lower air outlet is located on the side of the lower air duct cover. The lower air duct cover is housed in the lower air duct cover, and the side of the lower air duct cover is provided with an air outlet that is directly opposite the lower air outlet. The lower cover of the lower air duct is connected to the upper cover of the lower air duct. The lower cover of the lower air duct is provided with an air inlet that communicates with the air outlet of the lower cover. The lower fan is housed and fixed between the upper cover of the lower air duct and the lower cover of the upper air duct.

2. The multi-purpose air purifier with sterilization function according to claim 1, characterized in that: The housing is a metal housing with perforated mesh holes that form the air inlet.

3. The multi-purpose air purifier for sterilization according to claim 1, characterized in that: The sterilization multi-purpose air purifier also includes a negative ion generator and a wireless charging device located on the upper air outlet.

4. The multi-purpose air purifier for sterilization according to claim 1, characterized in that: The inner bottom of the upper air duct cover is provided with a top cover buckle, and the side of the lower air duct cover is provided with a top cover hook. The upper air duct cover and the lower air duct cover are connected by the top cover buckle and the top cover hook. The upper air duct cover and the lower air duct cover are fixedly connected by screws. The bottom inner side of the downdraft cover is provided with a cover buckle, and the side of the downdraft cover is provided with a cover hook. The downdraft cover and the downdraft cover are connected by the cover buckle and the cover hook. The downdraft top cover and the downdraft bottom cover are fixedly connected by screws.

5. The multi-purpose air purifier for sterilization according to claim 4, characterized in that: The upper filter screen clamping cover of the air inlet device is provided with an upper slot, and the lower filter screen clamping cover is provided with a lower slot; the lower cover of the upper air duct of the upper air outlet device is provided with an upper locking block, and the lower cover of the lower air duct of the lower air outlet device is provided with a lower locking block; the upper locking block is inserted into the upper slot and slides into the upper slot to achieve a snap-fit ​​connection between the upper air outlet device and the air inlet device, and the lower locking block is inserted into the lower slot and slides into the lower slot to achieve a snap-fit ​​connection between the lower air outlet device and the air inlet device; The upper filter screen pressing cover is provided with an upper receiving groove, and the lower surface of the upper air duct cover is provided with an inwardly recessed upper positioning groove; the lower filter screen pressing cover is provided with a lower receiving groove, and the upper surface of the lower air duct cover is provided with an inwardly recessed lower positioning groove. The sterilization multi-purpose air purifier also includes two locking devices respectively connected between the air inlet device and the upper air outlet device and between the air inlet device and the lower air outlet device. The locking device includes a slider cover, a locking slider that can slide up and down relative to the slider cover, and a slider spring connected to the locking slider. The upper end of the locking slider is provided with a positioning protrusion. The outer side of the locking slider is provided with a slider button that protrudes from the outer surface of the sterilization multi-purpose air purifier. The two locking devices are respectively placed in the upper and lower receiving grooves. After the upper air outlet device and the air inlet device are snapped together, the slider button is released. Under the top pressure of the slider spring, the locking slider causes the positioning protrusion to insert into the upper positioning groove, preventing relative movement between the air inlet device and the upper air outlet device when the locking slider is not unlocked. After the lower air outlet device and the air inlet device are snapped together, the slider button is released. Under the top pressure of the slider spring, the locking slider causes the positioning protrusion to insert into the lower positioning groove, preventing relative movement between the air inlet device and the lower air outlet device when the locking slider is not unlocked.

6. The multi-purpose air purifier for sterilization according to claim 1, characterized in that: The base is a Bluetooth speaker device, which is located below the air intake device. The Bluetooth speaker device includes a speaker cover and a speaker fixed inside the speaker cover. A filter positioning part is provided on the speaker cover, and a speaker positioning part is provided at the bottom of the filter positioning part. The filter is positioned on the filter positioning part and located on the speaker.

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