CN111550875A

CN111550875A - Foldable air sterilizer

Info

Publication number: CN111550875A
Application number: CN202010313035.6A
Authority: CN
Inventors: 汪崟; 姚威; 韩旭; 储昭卫; 王宝根; 吴彩霞; 邓大勇; 万延见; 卢锡龙; 张奇鹏; 张毕风
Original assignee: Zhejiang Science And Technology Publicity And Education Center
Current assignee: Zhejiang Science And Technology Publicity And Education Center
Priority date: 2020-04-20
Filing date: 2020-04-20
Publication date: 2020-08-18
Anticipated expiration: 2040-04-20
Also published as: CN111550875B

Abstract

The invention discloses a foldable air sterilizing machine, which belongs to the field of air sterilizing equipment and comprises a main machine room, an auxiliary machine room, an air chamber framework assembly and a film air chamber, wherein the air chamber framework assembly comprises a plurality of transverse supports, two adjacent transverse supports are connected through side connecting rods, the side connecting rods are rotatably connected with the transverse supports, and the transverse supports and the side connecting rods are connected with the outer side surface of the film air chamber; when the air sterilizer is used, the length and the height of the air sterilizer can be changed by adjusting the included angle between the adjacent side connecting rods, so that the air sterilizer is suitable for the placing requirements of different areas, occupies a small space when being stored, and solves the problems that the existing air sterilizer is large in size and inconvenient to use in a low or narrow area.

Description

Foldable air sterilizer

Technical Field

The invention relates to air disinfection equipment, in particular to a foldable air disinfection machine.

Background

The common technologies of air disinfection and cleaning devices in the market at present can be divided into physical disinfection and chemical disinfection, the physical disinfection is easier to be accepted by the common people because no chemical residue exists, and the common physical disinfection technologies comprise physical filtration, ultraviolet disinfection, static electricity and ionization disinfection, high-temperature disinfection, ozone disinfection and the like. The above techniques have advantages and disadvantages. However, no matter which technique is adopted, if the effect and the efficiency of air treatment are to be improved, the disinfection air chamber is bound to be enlarged, so that the size and the weight are huge, the disinfection air chamber can be basically placed at a certain position for use, and if the disinfection air chamber is bound to be convenient to move, either the air disinfection effect is not good or the efficiency is greatly reduced. The prior art and the device have no better method for solving the problem.

For example, the ultraviolet air purifying sterilizer disclosed in the chinese patent literature, which is published under the publication number CN207648959U, includes a housing, a fan, a plurality of ultraviolet lamps and a negative ion generator, and has disadvantages in that the ultraviolet sterilization requires a certain time irradiation of air, resulting in a long channel length required by the sterilizer, and occupies a large space when being placed, and thus cannot be adapted to various different occasions.

Disclosure of Invention

The foldable air sterilizer aims to solve the problems that the air sterilizer is large in size, large in occupied space and incapable of meeting the use requirements of narrow areas in the prior art, and can adjust the height and the length of the air sterilizer in use so as to meet the use requirements of different positions.

In order to achieve the purpose, the invention adopts the following technical scheme:

the invention relates to a foldable air sterilizer, which comprises an air channel and a sterilization assembly, wherein a fan used for generating airflow is arranged in the air channel; the deformable air chamber comprises an air chamber framework assembly, a foldable thin film air chamber is mounted on the air chamber framework assembly, and an air channel is formed inside the thin film air chamber; air chamber skeleton subassembly includes the horizontal support of a plurality of, connects through the side connecting rod between two adjacent horizontal supports, the side connecting rod with rotate between the horizontal support and connect, the horizontal support in be connected with host computer room support and auxiliary engine room support on two horizontal supports at both ends respectively, host computer room support with host computer room fixed connection, auxiliary engine room support with auxiliary engine room fixed connection, host computer room support, auxiliary engine room support, horizontal support and side connecting rod all with the lateral surface of film air chamber links to each other.

The fan is used for sucking outside air into the air channel for disinfection and then discharging the outside air from the air channel; the side wall of the deformable air chamber is made of a thin film material, so that the deformable air chamber can be folded; the two adjacent transverse brackets and the connecting rods between the two transverse brackets divide the whole film air chamber into a plurality of sections of air channels, and when the connecting rods and the transverse brackets rotate, the angles among the plurality of sections of air channels can also change. When the included angle between two adjacent sections of air channels is increased, the length of the whole film air chamber is increased, the height is reduced, and the film air chamber is more suitable for being used in a height-limited area; when the included angle between two adjacent sections of air channels is reduced, the length of the whole film air chamber is shortened, the height of the whole film air chamber is increased, and the film air chamber is more practical and can be used in a narrow area; therefore, the air sterilizer in the scheme can be more suitable for different areas compared with the common air sterilizer. In addition, because when the film air chamber is filled with air, the film air chamber can be expanded to form an air channel, when the air sterilizing machine is not used, the air in the film air chamber can be discharged, so that the included angle between adjacent connecting rods is minimized, and the space occupied by the device when the device is stored can be greatly reduced.

Preferably, the air chamber skeleton assembly further comprises a transverse elastic rod, two ends of the transverse support are fixedly connected with two ends of the transverse elastic rod, the transverse elastic rod is connected with the outer side surface of the film air chamber, and the length of the transverse elastic rod is greater than the linear distance between the two ends of the transverse support; the length of the transverse elastic rod is greater than the linear distance between the two ends of the transverse support, so that the transverse elastic rod is in a bent state when being fixed at the two ends of the transverse elastic rod; when the film air chamber is in an inflated state, the transverse elastic rod bends towards the direction far away from the transverse bracket under the action of air pressure and can be used for limiting the caliber of the air channel, so that the thickness of each section of the air channel is basically consistent; when the air channel exhausts, negative pressure is generated in the channel, and the transverse elastic rod is pulled to one side of the transverse bracket, so that the films connected to the transverse bracket and the transverse elastic rod are tightened as much as possible, and the film damage caused in the process of storage is avoided.

Preferably, the disinfection component comprises a filter screen arranged on the air inlet, an ultraviolet lamp arranged on the main machine chamber, and nano silver particles sprayed on the inner surface of the thin film air chamber; and a negative ion generator installed in the auxiliary machine chamber; the filter screen is used for carrying out primary filtration on air to filter out some magazines and particles; the ultraviolet lamp is used for emitting ultraviolet light, and the ultraviolet light has the effects of disinfection and sterilization; the nano silver particles also have a sterilization effect, so that germs attached to the inner wall of the film air chamber in the air flowing process can be killed, and secondary pollution caused by the germs remaining in the film air chamber is avoided; in addition, the inner wall of the film air chamber has good light reflecting effect after being sprayed with the nano silver particles, and ultraviolet light emitted by the ultraviolet lamps can be continuously reflected to each position of the air channel, so that the condition that a plurality of ultraviolet lamps need to be installed due to the bending of the air channel is avoided; anion generator can emit a large amount of electrons and get into the oxygen molecule capture in the auxiliary engine case through the air chamber, generate a large amount of air anions and spout into the ambient air through the spray tube in, play dust removal purification's effect to the equipment ambient air to the disinfection purification effect of this machine not only takes place inside the equipment, can also purify the outside dirty air of equipment through spun anion.

Preferably, a nozzle for ejecting gas is arranged on the auxiliary machine chamber, and the gas outlet is an outlet of the nozzle; the length direction of the film air chamber in the using process is taken as the y-axis direction, the vertical direction is taken as the z-axis direction, the direction perpendicular to the plane of the y-axis and the z-axis is taken as the x-axis direction, the nozzle is connected with a first driving piece used for controlling the nozzle to rotate in the z-axis direction, the first driving piece is connected with a second driving piece used for controlling the nozzle and the first driving piece to rotate in the x-axis direction, and the second driving piece is fixed in the auxiliary machine chamber; through first driving piece and second driving piece, can control the nozzle and swing in left and right direction and upper and lower direction to air purification's regional size has been promoted as far as possible.

Preferably, a nozzle for ejecting gas is arranged on the auxiliary machine chamber, a pressurizing one-way valve is arranged at the inlet of the nozzle, the pressurizing one-way valve comprises an upper elastic door and a lower elastic door, the lower end of the upper elastic door and the upper end of the lower elastic door are tightly propped against each other, and the upper elastic door and the lower elastic door are both bent towards the inner side of the nozzle; because the upper side elastic door and the lower side elastic door are both bent towards the inner side of the nozzle, when the air flow flows to the nozzle from the auxiliary machine room, the bending degree of the upper side elastic door and the lower side elastic door is increased, so that a gap is generated between the upper side elastic door and the lower side elastic door, and the air flow can flow to the nozzle; when the airflow flows from the nozzle to the auxiliary machine chamber, the bending degree of the upper elastic door and the lower elastic door is reduced under the action of the airflow, so that the lower end of the side elastic door and the upper end of the lower elastic door are pushed more tightly, the airflow cannot pass through, and the effect of a one-way valve is achieved; compare in general check valve structure, the structure in this scheme is simpler, can not occupy the indoor space of auxiliary engine.

Preferably, the lower end of the upper elastic door and the upper end of the lower elastic door are both provided with magnetic parts, and the upper elastic door and the lower elastic door are mutually attracted through the magnetic parts, so that the air flow flowing from the auxiliary machine room to the nozzle can open the pressurizing one-way valve and flow out of the nozzle only after the magnetism is overcome; therefore, when the air pressure in the air channel is small, the air cannot pass through the pressurizing one-way valve, and only when the air pressure is large enough and the film air chamber is completely unfolded, the air can pass through the pressurizing one-way valve; the condition that the gas is sprayed out from the nozzle when the gas chamber is not completely unfolded and the transverse elastic rods are not completely ejected in the process of inflating the film gas chamber is avoided; in addition, when the air sterilizer is in a working state, the pressure in the air channel is always higher due to the existence of the pressurizing one-way valve, which means that the quantity of the gas contained in the air channel is larger at the same time, and more gas can be sterilized at the same time.

Preferably, the auxiliary engine room comprises an auxiliary engine room shell, an opening for allowing the nozzle to penetrate through is formed in the auxiliary engine room shell, a baffle is fixed on the outer side of the nozzle, the outer side surface of the baffle is attached to the inner side surface of the auxiliary engine room shell, the outer side surface of the baffle and the inner side surface of the auxiliary engine room shell attached to the outer side surface of the baffle are both arc surfaces, the baffle completely covers the opening, and a top plate for enabling the baffle to be pushed against the inner side surface of the auxiliary engine room shell is further fixed in the auxiliary engine room; because the nozzle needs a certain moving space in the swinging process, an opening larger than the sectional area of the nozzle needs to be arranged on the casing of the auxiliary engine room, and if gas is directly discharged from the opening, a pressurizing one-way valve on the nozzle cannot play a role; the baffle is used for blocking the opening, so that the gas can be ensured to completely flow out of the nozzle, and in addition, the baffle is positioned at the inner side of the auxiliary engine room shell, so that the gas flow can also have a pressing effect on the baffle when flowing; because the movement of the nozzle is not translation but rotation, the baffle and the auxiliary engine room shell attached to the baffle must be cambered surfaces; the top plate can press the baffle plate on the auxiliary engine chamber shell, so that gas is prevented from rushing out from a gap between the baffle plate and the auxiliary engine chamber shell.

Preferably, the first driving member is a motor located below the nozzle, the axial direction of the motor is the z-axis direction, the second driving member is an electric cylinder, the axial direction of the electric cylinder is the x-axis direction, and the first driving member and the second driving member are connected through an arc-shaped elastic rod; the motor can drive the nozzle to rotate in the z-axis direction when rotating, so that the nozzle swings left and right, the motor and the nozzle can be extruded outwards by the electric cylinder, and the nozzle cannot move outwards due to the limitation of the auxiliary engine chamber shell on the baffle plate, so that the arc-shaped elastic rod is deformed; because the position of the electric cylinder is fixed, the height of one end of the arc-shaped elastic rod connected with the electric cylinder cannot be changed, and therefore the height of one end of the arc-shaped elastic rod connected with the motor can be changed, and the nozzle is driven to swing up and down; the scheme has simple structure and small occupied space.

Preferably, side wheels are installed below the main machine chamber and the auxiliary machine chamber, a display screen, keys, a power line and a power switch are arranged outside the main machine chamber, and a main board and a battery pack are arranged inside the main machine chamber; the power line is used for charging the air sterilizer, and the battery pack enables the air sterilizer to be used under the condition of no power plug; the display screen can show the electric quantity state of air sterilizing apparatus and the running state of equipment, the button can be through the slew velocity of mainboard control fan, the swing mode of nozzle etc..

Therefore, the invention has the following beneficial effects: (1) the height and the length of the air sterilizer can be changed by folding, so that the air sterilizer can be adapted to the use requirements of different areas; (2) when the folding type air conditioner is folded, the air channel part can be completely contracted, and the occupied space is small; (3) having a plurality of different types of sterilization assemblies; (4) the utilization rate of the ultraviolet lamp is improved through reflection, and the cost is saved; (5) the pressurization one-way valve is arranged, so that the air pressure in the air channel is higher, and more air can be accommodated at the same time; (6) the air flow can be sprayed out from different directions, and the purification area is larger; (7) the power of the fan can be controlled to meet the requirements of different environments.

Drawings

Fig. 1 is an exploded view of various components of the present invention.

Fig. 2 is a schematic structural view of the present invention when the deployment angle is large.

FIG. 3 is a schematic view of a smaller deployment angle configuration of the present invention.

Fig. 4 is a schematic structural diagram of the present invention in a storage state.

FIG. 5 is a partial schematic view of a plenum skeleton assembly of the present invention.

FIG. 6 is a schematic view of the construction of a plenum skeleton assembly of the present invention.

FIG. 7 is a schematic view of a plenum frame assembly of the present invention in a stowed configuration.

Fig. 8 is a schematic view of the internal structure of a main cabinet according to the present invention.

Fig. 9 is a schematic view of the internal structure of an auxiliary machinery room of the present invention.

Fig. 10 is an exploded view of the internal part structure of a sub-housing of the present invention.

FIG. 11 is a schematic structural view of a nozzle direction control assembly of the present invention.

Fig. 12 is a partial schematic view of the interior of an auxiliary housing of the present invention.

In the figure: 1. a film air chamber 2, an air chamber framework component 2.1, a main engine chamber bracket 2.2, a transverse bracket 2.2a, a transverse elastic rod 2.3, a side connecting rod 2.4, an auxiliary engine chamber bracket 3, a main engine upper cover 4, a main engine chamber shell 5, a main engine chamber universal wheel 6, a main engine side wheel 7, an auxiliary engine upper cover 8, an auxiliary engine chamber shell 9, an auxiliary engine chamber universal wheel 10, an auxiliary engine side wheel 11, a display screen 12 and a key 13, the device comprises a filter screen 14, a fan 15, a main board 16, a battery pack 17, an ultraviolet lamp 18, a power cord 19, a power switch 20, an anion generator 21, a nozzle direction control assembly 21.1, a second driving assembly 21.2, a first driving assembly 21.3, a nozzle 21.4, a baffle 21.5, a pressurizing one-way valve 21.5a, a lower elastic door 21.5b, an upper elastic door 21.5c, an upper magnetic part 21.5d and a lower magnetic part 21.6 top plate.

Detailed Description

The invention is further described with reference to the following detailed description and accompanying drawings.

In the embodiment shown in fig. 1-12, a foldable air sterilizer comprises a main machine chamber, an auxiliary machine chamber and a sterilizing assembly, wherein the sterilizing assembly comprises a filter screen 13, an ultraviolet lamp 17, nano silver particles and a negative ion generator 20, the main machine chamber and the auxiliary machine chamber are connected through a deformable air chamber, the deformable air chamber comprises an air chamber skeleton assembly 2 and a thin film air chamber 1, and an air channel is formed inside the thin film air chamber. The air chamber framework assembly comprises a plurality of transverse supporting rods 2.2 and transverse elastic rods 2.2a arranged on transverse supports, two adjacent transverse supports are connected through side connecting rods 2.3, and the side connecting rods are rotatably connected with the transverse supports; the transverse support is arc-shaped, two ends of the transverse support are fixedly connected with two ends of a transverse elastic rod respectively, the transverse elastic rod is square, and the length of the transverse elastic rod is greater than the linear distance between the two ends of the transverse support but smaller than the length of the curve of the transverse support; the transverse elasticity has two stable bending directions which are respectively the direction towards the transverse support and the direction back to the transverse support, two transverse supports positioned at two ends in the transverse support are respectively connected with a main machine room support 2.1 and an auxiliary machine room support 2.4, the main machine room support is fixedly connected with the main machine room, and the auxiliary machine room support is fixedly connected with the auxiliary machine room; the air chamber framework assembly is provided with a foldable film air chamber, and the main machine room support, the auxiliary machine room support, the transverse support and the side connecting rod are all connected with the outer side surface of the film air chamber. Host computer room includes host computer room shell 4 and host computer upper cover 3, is equipped with the air inlet on the side of host computer room, installs the filter screen that is used for filtering the particulate matter on the air inlet, the air inlet links to each other with host computer indoor portion's fan 14, the host computer upper cover hole of covering on the host computer is connected to the ascending air outlet of fan, host computer room support is fixed and is covered on the host computer, the opening of the one end that film air chamber and host computer room support link to each other covers completely host computer upper cover hole. The main machine room is internally provided with a main board 15 and a battery pack 16, the side surface of the main machine room is provided with a display screen 11 and a key 12, the lower part of the main machine room is also provided with a power switch 19 and is connected with a power line 18, the bottoms of the two sides of the main machine room are provided with a pair of main machine side wheels 6, and the middle of the bottom of the main machine room is also provided with a main machine room universal wheel 5. The ultraviolet lamp is arranged above the upper cover of the host machine, and the nano silver particles are sprayed on the inner side wall of the film air chamber. The auxiliary engine room comprises an auxiliary engine room shell 8 and an auxiliary engine upper cover 7, the negative ion generator is installed in the auxiliary engine room, auxiliary engine side wheels 10 are installed at the bottoms of the two sides of the auxiliary engine room, auxiliary engine room universal wheels 9 are installed in the middle of the bottom of the auxiliary engine room, when the air sterilizing machine is in a use state, the length can be changed only through the main engine side wheels and the auxiliary engine side wheels, the air sterilizing machine cannot move transversely, when the air sterilizing machine is in a storage state, one of the main engine room and the auxiliary engine room is located below, the other of the main engine room and the auxiliary engine room is located above, and at the moment, the air sterilizing machine can move in any direction through the main engine side wheels and the main engine room universal wheels or the auxiliary engine side wheels and the auxiliary engine room universal. Still install nozzle direction control assembly 21 in the auxiliary engine room, nozzle direction control assembly includes fixed mounting's second driving piece 21.1, the second driving piece is an electric jar, with the length direction of film air chamber in the use is the y axle direction, and vertical direction is the z axle direction, with the y axle is the x axle direction with the perpendicular direction in plane of z axle place, the axial of electric jar is the x axle direction. The end part of the cylinder shaft is connected with an arc elastic piece, the shape of the arc elastic piece is a quarter arc, and the upper end of the arc elastic piece is matched with the electric cylinder. The lower end of the motor is connected with a first driving part 21.2, the first driving part is a motor, the axial direction of the motor is the z-axis direction, and a nozzle 21.3 is connected to the shaft of the motor. The outside of nozzle is equipped with an curved baffle 21.4, the baffle outside is laminated with the inboard of vice quick-witted outdoor shell, be equipped with the opening that is used for passing the nozzle on the vice quick-witted outdoor shell, open-ended size is greater than the cross-section size of nozzle, but is less than the size of baffle, the opening is covered completely to the baffle. And the two sides of the nozzle are respectively provided with a top plate 21.6 for pushing the baffle plate on the auxiliary machine chamber shell, and the distance between the outer edge of the top plate and the inner wall of the auxiliary machine chamber shell is always equal to the thickness of the baffle plate. The entrance of nozzle is equipped with pressurization check valve 21.5, the pressurization check valve includes upside elasticity door 21.5b and downside elasticity door 21.5a, the upper end of upside elasticity door with the lower extreme of downside elasticity door is fixed on the nozzle, install upside magnetic part 21.5c on the lower extreme of upside elasticity door, install downside magnetic part 21.5d on the upper end of downside elasticity door.

When the device is in a folding state, the main machine room is located below, the angle between each side connecting rod is in a minimum state, the whole air chamber framework assembly is piled above the main machine room, and the auxiliary machine room is located above the air chamber framework assembly. Two main machine side wheels and a main machine room universal wheel are supported at three points on the ground, so that the movement in all directions can be conveniently carried out.

When the device is required to be used, the device is moved to a position to be placed, then the auxiliary machine room is taken down, and the side wheels of the auxiliary machine fall on the ground, so that the device cannot move transversely. The film air cells can be unfolded by pulling the main and sub-cells apart or by pressing down on the transverse support located above. During the process of the expansion of the film air chamber, the length of the device is continuously increased, and the height is continuously reduced. And when the length and the height of the device meet the use requirements, the device stops unfolding, and the height of each transverse bracket at the upper end is ensured to be the same as much as possible. And connecting the power line to the power supply, turning on a power switch, and starting the fan through a key. The fan sucks external gas, and the gas enters the film air chamber through the upper cover hole of the host after passing through the filter screen and the fan. At the moment, because the air pressure in the film air chamber is not enough to open the pressurizing one-way valve, the air in the film air chamber is continuously increased, and the air pressure is continuously increased; after the air pressure is increased to a certain degree, the transverse elastic rod which is originally bent towards the transverse support is squeezed open by the air pressure, so that the transverse support is bent back to the transverse support; and under the limit of the transverse bracket and the transverse elastic bracket, the caliber of the whole gas channel is basically kept consistent. At the moment, the ultraviolet lamp on the upper cover of the host is turned on, the ultraviolet light is full of the whole film air chamber through the reflection of the nano silver particles in the film air chamber, and the gas is irradiated by the ultraviolet light when moving in the film air chamber, so that the sterilization is continuously carried out. Meanwhile, germs attached to the inner wall of the film air chamber lose activity due to the nano silver particles. When the air pressure in the film air chamber reaches a certain degree, the air flow overcomes the suction force between the upper side magnetic part and the lower side magnetic part, and the upper side elastic door and the lower side elastic door are pressed to be more bent, so that a gap is generated between the upper side elastic door and the lower side elastic door, and the air flow can be sprayed out of the gap. The air passing through the film air chamber can enter the auxiliary machine chamber, the negative ion generator in the auxiliary machine chamber can emit a large amount of electrons which are captured by oxygen molecules in the air flow to generate a large amount of air negative ions which are sprayed into the outside air through the nozzle, and the dust removal and purification effects on the outside air of the equipment are achieved.

The electric cylinder and the motor part can be controlled by the key to adjust the orientation and the swinging mode of the nozzle. When the shaft of the electric cylinder extends out, the nozzle cannot move outwards due to the limiting effect between the baffle and the outer shell of the auxiliary engine room, so that the arc-shaped elastic part is bent, and one end, connected with the motor, of the bent arc-shaped elastic part moves downwards, so that the nozzle swings downwards; when the shaft of the electric cylinder is retracted, the nozzle swings upward. When the motor rotates, the nozzle is directly driven to swing left and right. The baffle plate always covers the opening in the swinging process of the nozzle to prevent airflow from escaping from the opening, and meanwhile, the baffle plate is always tightly attached to the inner side of the auxiliary engine room shell under the action of the top plate.

Claims

1. A foldable air sterilizer comprises an air channel and a sterilization assembly, wherein a fan used for generating air flow is arranged in the air channel, and the foldable air sterilizer is characterized by also comprising a main machine room and an auxiliary machine room, wherein an air inlet is arranged on the main machine room, an air outlet is arranged on the auxiliary machine room, and the main machine room and the auxiliary machine room are connected through a deformable air chamber; the deformable air chamber comprises an air chamber framework assembly, a foldable thin film air chamber is mounted on the air chamber framework assembly, and an air channel is formed inside the thin film air chamber; air chamber skeleton subassembly includes the horizontal support of a plurality of, connects through the side connecting rod between two adjacent horizontal supports, the side connecting rod with rotate between the horizontal support and connect, the horizontal support in be connected with host computer room support and auxiliary engine room support on two horizontal supports at both ends respectively, host computer room support with host computer room fixed connection, auxiliary engine room support with auxiliary engine room fixed connection, host computer room support, auxiliary engine room support, horizontal support and side connecting rod all with the lateral surface of film air chamber links to each other.

2. The foldable air sterilizer of claim 1, wherein the air chamber frame assembly further comprises a transverse elastic rod, both ends of the transverse bracket are fixedly connected with both ends of the transverse elastic rod, the transverse elastic rod is connected with the outer side surface of the film air chamber, and the length of the transverse elastic rod is greater than the linear distance between both ends of the transverse bracket.

3. The foldable air sterilizer of claim 1, wherein said sterilizing module comprises a screen mounted on said air inlet, an ultraviolet lamp mounted on said main housing, and nano-silver particles sprayed on the inner surface of said membrane air chamber; and a negative ion generator installed in the sub-chamber.

4. The foldable air sterilizer as claimed in claim 1, wherein a nozzle for spraying air is provided in the sub-chamber, a pressurizing check valve is provided at an inlet of the nozzle, the pressurizing check valve includes an upper elastic door and a lower elastic door, a lower end of the upper elastic door and an upper end of the lower elastic door abut against each other, and the upper elastic door and the lower elastic door are bent toward an inside of the nozzle.

5. The foldable air sterilizer of claim 4, wherein the lower end of the upper elastic door and the upper end of the lower elastic door are provided with magnetic members.

6. A foldable air sterilizer as claimed in claim 1, wherein said auxiliary chamber is provided with a nozzle for ejecting air, and said air outlet is an outlet of said nozzle; the length direction of the film air chamber in the using process is the y-axis direction, the vertical direction is the z-axis direction, the direction perpendicular to the plane where the y-axis and the z-axis are located is the x-axis direction, a first driving piece used for controlling the nozzle to rotate in the z-axis direction is connected to the nozzle, a second driving piece used for controlling the nozzle and the first driving piece to rotate in the x-axis direction is connected to the first driving piece, and the second driving piece is fixed in the auxiliary machine chamber.

7. The foldable air sterilizer as claimed in claim 4, wherein the auxiliary machine room comprises an auxiliary machine room casing, an opening for passing through the nozzle is formed in the auxiliary machine room casing, a baffle is fixed on the outer side of the nozzle, the outer side face of the baffle is attached to the inner side face of the auxiliary machine room casing, the outer side face of the baffle and the inner side face of the auxiliary machine room casing attached to the outer side face of the baffle are both arc faces, the baffle completely covers the opening, and a top plate for pushing the baffle against the inner side face of the auxiliary machine room casing is further fixed in the auxiliary machine room.

8. The foldable air sterilizer of claim 5, wherein the first driving member is a motor disposed below the nozzle, the motor has an axial direction of z-axis, the second driving member is an electric cylinder, the electric cylinder has an axial direction of x-axis, and the first driving member and the second driving member are connected by an arc-shaped elastic rod.

9. A foldable air sterilizer as claimed in any one of claims 1 to 8, wherein side wheels are installed below the main and sub-chambers, a display screen, buttons, a power line and a power switch are installed outside the main chamber, and a main board and a battery pack are installed inside the main chamber.