Air purification device

Abstract

The utility model relates to an air purification device which comprises a fixed box body and a movable box cover, the movable box cover is constructed to be used for installing a harmful substance decomposition part and is matched with the fixed box body in a covering mode to form a containing cavity, and the harmful substance decomposition part is located in the containing cavity and divides the containing cavity into an upper cavity body and a lower cavity body; the movable box cover is provided with a first ventilation channel communicated with the upper cavity, the fixed box body is provided with a second ventilation channel communicated with the lower cavity, and the lower cavity is used for containing harmful substance adsorption materials. After being stressed, the movable box cover moves relative to the fixed box body to block or communicate the second ventilation channel and the containing cavity, and when the movable box cover moves relative to the fixed box body to communicate the second ventilation channel and the containing cavity, the movable box cover and the fixed box body are locked. According to the design, harmful substances in indoor air are removed through combination of a physical adsorption mode and a chemical decomposition mode, and the purification efficiency of the air purification device is improved.

Description

TECHNICAL FIELD

[0001] The present disclosure relates to the field of air purification, and in particular to an air purification device. BACKGROUND

[0002] When a new house is decorated or furniture is replaced, various building materials or adhesives will release a large amount of harmful gases such as formaldehyde, which poses a serious threat to human health.

[0003] Traditional air purification methods such as ventilation and placing green plants have certain effects, but have limitations. Ventilation is limited by weather and time, and the purification capacity of green plants is limited.

[0004] Existing air purification equipment is divided into two categories. One is to use activated carbon to adsorb harmful gases such as formaldehyde, but the duration of activated carbon is generally 3 to 6 months, and after that, it will be saturated, and the transportation process will also cause waste of activated carbon material. Not only is the air purification efficiency low, but the activated carbon also needs to be replaced in time; the other is to use chemical materials to purify air, such as using copper hydroxide to oxidize formaldehyde, but this type of equipment needs to set up a treatment cavity, and the air is introduced into the treatment cavity through a fan, so that the equipment is large in size, which is not convenient for placing at home and transporting. CONTENT OF THE UTILITY MODEL

[0005] The purpose of the present disclosure is to overcome the shortcomings of the prior art and provide an air purification device.

[0006] According to a first aspect of the present disclosure, the air purification device comprises:

[0007] a fixed box body;

[0008] a movable box cover configured to install a harmful substance decomposition member, and cooperated with the fixed box body to form a containing cavity, the harmful substance decomposition member is located in the containing cavity and divides the containing cavity into an upper chamber and a lower chamber, a first air passage is formed on the movable box cover and communicates with the upper chamber, a second air passage is formed on the fixed box body and communicates with the lower chamber, and the lower chamber is used to place a harmful substance adsorption material;

[0009] the movable box cover is moved relative to the fixed box body to block or conduct the second air passage and the containing cavity after being stressed, and the movable box cover and the fixed box body are locked when the movable box cover is moved relative to the fixed box body to conduct the second air passage and the containing cavity.

[0010] In an embodiment of the present disclosure, the fixed box body comprises:

[0011] a lower box body provided with an upper open containing groove;

[0012] An upper box body detachably connected with the lower box body and having a mounting through hole in communication with the accommodating groove, the movable box cover being arranged in the mounting through hole and enclosing the accommodating groove to form the accommodating cavity, and the second ventilation passage being formed in the upper box body and / or the lower box body.

[0013] In one embodiment of the present disclosure, the lower box body has a first annular groove surrounding an upper opening of the accommodating groove, the upper box body has a second annular groove surrounding the mounting through hole and being open at a lower portion, the first annular groove and the second annular groove form a ventilation cavity after the upper box body and the lower box body are matched, the outer sidewall of the upper box body is provided with a first ventilation hole, the upper box body and the lower box body have an annular matching gap between the inner sidewalls, and the first ventilation hole, the ventilation cavity and the annular matching gap are in communication to form the second ventilation passage.

[0014] The movable box cover blocks the second ventilation passage and the accommodating cavity by blocking the annular matching gap after being forced.

[0015] In one embodiment of the present disclosure, the movable box cover is provided with a sliding block, and the upper box body is provided with a sliding channel matched with the sliding block, the sliding channel including a horizontal sliding channel and a vertical sliding channel formed by extending downward from one end of the horizontal sliding channel.

[0016] Under the action of an external force, the movable box cover moves upward along the vertical sliding channel through the sliding block to gradually open the second ventilation passage until reaching the horizontal sliding channel, and then moves in a horizontal direction to lock the movable box cover and the fixed box body.

[0017] In one embodiment of the present disclosure, the mounting through hole is a circular mounting through hole, the movable box cover is a cylindrical movable box cover matched with the circular mounting through hole, the sliding channel is formed on the hole wall of the mounting through hole, the upper box body is provided with at least two sliding channels arranged in a circumferential direction and spaced apart from each other, and the movable box cover is provided with the sliding block corresponding to the sliding channel.

[0018] In one embodiment of the present disclosure, the movable box cover includes a top plate and an annular cylindrical side plate formed by extending downward from the edge of the top plate, the top plate is provided with the second ventilation hole, and the inner wall of the annular cylindrical side plate is provided with at least two fixing members arranged in a circumferential direction and spaced apart from each other, the fixing members being configured to fixedly install the harmful substance decomposing member.

[0019] In one embodiment of the present disclosure, the fixing member is a U-shaped plate with a notched opening facing inward.

[0020] In one embodiment of the present disclosure, the top plate comprises a hand-held portion and a plate body surrounding the hand-held portion, the hand-held portion protrudes from the plate body, and the plate body is downwardly inclined from the outer edge to the hand-held portion, the outer edge of the plate body and the top surface of the hand-held portion are in the same plane; and the top surface of the box cover, the top surface of the hand-held portion and the outer edge of the plate body are in the same plane when the second air passage and the accommodating cavity are blocked.

[0021] In one embodiment of the present disclosure, a third air hole is further provided on the annular circular side plate, and the third air hole is blocked by the fixed box body when the second air passage and the accommodating cavity are blocked, and the third air hole is completely opened when the movable box cover moves upward relative to the fixed box body to be locked with the fixed box body.

[0022] In one embodiment of the present disclosure, the harmful substance adsorbing material comprises activated carbon and nano-mineral crystal; and / or, the harmful substance decomposing member comprises negative oxygen ion sponge.

[0023] One beneficial effect of the air purification device of the present disclosure is that the first air passage is communicated with the accommodating cavity, the harmful substance decomposing member in the accommodating cavity completely decomposes the harmful substances in the air by chemical decomposition, the movable box cover moves relative to the fixed box body to control the blocking or conduction of the second air passage and the accommodating cavity, when the second air passage and the accommodating cavity are conducted, the harmful substance adsorbing material in the accommodating cavity adsorbs the harmful substances in the air by physical adsorption, the harmful substances in the indoor air are removed by the combination of physical adsorption and chemical decomposition, and the purification efficiency of the air purification device is improved; when the second air passage and the accommodating cavity are blocked, the harmful substance adsorbing material stops working, and the loss of the harmful substance adsorbing material during the transportation of the air purification device is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0024] The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate embodiments of the present disclosure and, together with the description, serve to explain the principles of the present disclosure.

[0025] Figure 1 is a structural schematic view of the air purification device when the movable box cover is opened relative to the fixed box body in one embodiment of the present disclosure;

[0026] Figure 2 is a structural schematic view of the air purification device when the movable box cover is closed relative to the fixed box body in one embodiment of the present disclosure;

[0027] Figure 3 is a sectional schematic view of the air purification device when the movable box cover is opened relative to the fixed box body in one embodiment of the present disclosure;

[0028] Figure 4 is a cross-sectional view of the air purification device when the movable box cover is closed relative to the fixed box body, according to an embodiment of the present disclosure;

[0029] Figure 5 is an exploded structural view of the air purification device, according to an embodiment of the present disclosure;

[0030] Figure 6 is a structural view of the movable box cover, according to an embodiment of the present disclosure;

[0031] Figure 7 is a structural view of the upper box body, according to an embodiment of the present disclosure;

[0032] Figure 8 is a structural view of the lower box body, according to an embodiment of the present disclosure.

[0033] Figures 1-8 The one-to-one correspondence between the names of the components and the reference numerals in the above table is as follows:

[0034] Fixed box body: 11 - lower box body; 111 - accommodating groove; 112 - first annular groove; 12 - upper box body; 121 - mounting through hole; 122 - second annular groove; 123 - first air vent; 124 - annular fitting gap; 13 - slide; 131 - horizontal slide; 132 - vertical slide; 14 - air vent cavity;

[0035] 2 - movable box cover; 21 - sliding block; 22 - top plate; 221 - second air vent; 222 - hand holding part; 23 - annular circular side plate; 231 - fixing member; 232 - third air vent;

[0036] 3 - accommodating cavity. DETAILED DESCRIPTION

[0037] Various exemplary embodiments of the present disclosure will now be described in detail with reference to the accompanying drawings. Note that the relative arrangement, numerical expressions, and numerical values of the components and steps set forth in these embodiments are not limiting to the scope of the present disclosure unless otherwise specifically stated.

[0038] The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way limiting to the scope of the present disclosure and its applications or uses.

[0039] Techniques, methods, and devices known to those of ordinary skill in the relevant art can not be discussed in detail herein, but should be considered as part of the description if appropriate.

[0040] In all of the examples shown and discussed herein, any specific values should be interpreted as merely exemplary and not as a limitation. Thus, other examples of the exemplary embodiments can have different values.

[0041] It should be noted that like reference numerals and letters refer to like items throughout the drawings, and once an item is defined in one drawing, it need not be discussed further in subsequent drawings.

[0042] In the present disclosure, "upper", "lower", "front", "back", "left", "right" and the like are used to indicate relative positional relationships among the relevant parts, and do not limit the absolute positions of the relevant parts.

[0043] In the present disclosure, "first", "second", and the like are used only to distinguish from each other, and do not represent importance and order, and the premise of each other.

[0044] In the present disclosure, "equal", "same", and the like are not strictly limited in the mathematical and / or geometric sense, but also include errors allowed by the person skilled in the art in manufacturing or use.

[0045] The existing air purification equipment has a single purification mode and low purification efficiency. Therefore, the present disclosure provides a high-efficiency air purification device. In order to facilitate understanding, the specific structure of the air purification device of the present disclosure and its working principle will be described in detail below with reference to Figures 1-8 , combined with embodiments.

[0046] Referring to Figures 3-5 , in one embodiment, the air purification device of the present disclosure includes a fixed box body and a movable box cover 2, wherein the movable box cover 2 is configured to install a harmful substance decomposition member, and cooperates with the fixed box body to form a containing cavity 3, the harmful substance decomposition member is located in the containing cavity 3 and divides the containing cavity 3 into an upper chamber and a lower chamber, a first air passage is formed on the movable box cover 2 and communicates with the upper chamber, a second air passage is formed on the fixed box body and communicates with the lower chamber, and the lower chamber is used to place a harmful substance adsorption material; the movable box cover 2 is forced to move relative to the fixed box body to block or conduct the second air passage and the containing cavity 3, and when the movable box cover 2 moves relative to the fixed box body to conduct the second air passage and the containing cavity 3, the movable box cover 2 and the fixed box body are locked.

[0047] Specifically, the movable box cover 2 and the fixed box body are covered by clamping and fixed by an adhesive, and the containing cavity 3 is divided into an upper chamber located in the movable box cover 2 and a lower chamber located in the fixed box body by the harmful substance decomposition member in the movable box cover 2.

[0048] The movable box cover 2 is provided with a first air passage, air outside the air purification device can enter the upper chamber through the first air passage, the harmful substance decomposing member contacts the harmful substances in the air to oxidize and decompose the harmful substances.

[0049] The fixed box body is provided with a second air passage, air outside the air purification device can enter the containing cavity 3 through the second air passage, the harmful substance adsorbing material in the containing cavity 3 adsorbs the harmful substances in the air through the microporous structure.

[0050] Under the action of external force, the movable box cover 2 can move relative to the fixed box body to realize the conduction or blockage of the containing cavity 3 and the second air passage, specifically, the conduction or blockage of the lower chamber and the second air passage, when the movable box cover 2 moves relative to the fixed box body to the conduction of the lower chamber and the second air passage, the movable box cover 2 and the fixed box body are locked to keep the harmful substance adsorbing material of the lower chamber working.

[0051] The harmful substances in the air include formaldehyde, benzene series, ammonia and the like, formaldehyde is the most common and harmful volatile organic compound, which widely exists in plywood, paint, coating, wallpaper, carpet, curtain and the like; benzene series such as benzene, toluene, xylene and the like, which usually come from solvent type paint, adhesive and other chemical products; ammonia can appear in concrete additives or certain types of cleaning agents. They all have great harm to human body.

[0052] Working process:

[0053] The first air passage makes the containing cavity 3 communicate with the outside of the air purification device, air enters the upper chamber, when the harmful substances in the air contact the harmful substance decomposing member, they are oxidized and decomposed;

[0054] The second air passage is blocked by the movable box cover 2 in the non-working state, which blocks the communication between the containing cavity 3 and the outside of the air purification device, so that the harmful substance adsorbing material stops working, reducing the loss of the harmful substance adsorbing material of the air purification device during transportation;

[0055] The movable box cover 2 moves relative to the fixed box body to the conduction of the second air passage and the containing cavity 3, air enters the lower chamber, and the harmful substance adsorbing material adsorbs the harmful substances in the air through the microporous structure.

[0056] Thus, the first air passage is in communication with the accommodating cavity 3, the harmful substance decomposing member in the accommodating cavity 3 completely decomposes the harmful substances in the air by chemical decomposition, the movable box cover 2 controls the blocking or opening of the second air passage and the accommodating cavity 3 by moving relative to the fixed box body, when the second air passage is in communication with the accommodating cavity 3, the harmful substance adsorbing material in the accommodating cavity 3 adsorbs the harmful substances in the air by physical adsorption, the harmful substances in the indoor air are removed by the combination of the physical adsorption and the chemical decomposition, and the purification efficiency of the air purification device is improved; when the second air passage is blocked, the harmful substance adsorbing material stops working, and the loss of the harmful substance adsorbing material of the air purification device in the transportation process is reduced.

[0057] Referring to Figure 3 , Figures 7-8 In one embodiment, the fixed box body includes a lower box body 11 and an upper box body 12, the lower box body 11 is provided with an accommodating groove 111 with an upper opening, the upper box body 12 is detachably connected with the lower box body 11 and has a mounting through hole 121 in communication with the accommodating groove 111, the movable box cover 2 is arranged in the mounting through hole 121 and forms the accommodating cavity 3 together with the accommodating groove 111, and the second air passage is formed in the upper box body 12 and / or the lower box body 11.

[0058] Specifically, when the upper box body 12 and the lower box body 11 are closed, the movable box cover 2 and the accommodating groove 111 form the accommodating cavity 3, the movable box cover 2 is an upper chamber, and the accommodating groove 111 is a lower chamber, the upper chamber removes the harmful substances in the air by chemical decomposition, and the lower chamber removes the harmful substances in the air by physical adsorption. The upper box body 12 is provided with the mounting through hole 121 at the center position, and the movable box cover 2 is arranged in the mounting through hole 121, so that the upper chamber and the lower chamber are integrated in the fixed box body, the volume of the air purification device is reduced, and the transportation and indoor placement of the air purification device are facilitated. In addition, the two methods of removing harmful substances are combined to improve the purification efficiency of the air purification device.

[0059] Referring to Figure 3 , Figures 7-8 In one embodiment, the lower box body 11 has a first annular groove 112 surrounding the upper opening of the accommodating groove 111, the upper box body 12 has a second annular groove 122 surrounding the mounting through hole 121 and having a lower opening, the first annular groove 112 and the second annular groove 122 form an air passage cavity 14 after the upper box body 12 and the lower box body 11 are matched, the upper box body 12 is provided with a first air hole 123 on the outer side wall, the upper box body 12 and the lower box body 11 have an annular matching gap 124 between the inner side walls, the first air hole 123, the air passage cavity 14 and the annular matching gap 124 are in communication to form the second air passage, and the movable box cover 2 blocks the second air passage and the accommodating cavity 3 by blocking the annular matching gap 124 after being stressed.

[0060] Specifically, the first annular groove 112 is arranged around the accommodating groove 111, and the heights of the inner and outer groove walls of the first annular groove 112 are substantially consistent; the second annular groove 122 is arranged around the mounting through hole 121, and the height of the groove wall on the outer side of the second annular groove 122 is greater than the height of the groove wall on the inner side; after the upper box body 12 and the lower box body 11 are closed, the first annular groove 112 and the second annular groove 122 form the ventilation cavity 14, and the groove wall on the inner side of the second annular groove 122 and the groove wall on the inner side of the first annular groove 112 form the annular fitting gap 124, and the ventilation cavity 14 can be communicated with the accommodating cavity 3 through the annular fitting gap 124. The outer side wall of the upper box body 12 is provided with the first ventilation hole 123, which is a circular hole and is arranged in a square array, and the ventilation cavity 14 is communicated with the outside of the air purification device through the first ventilation hole 123.

[0061] The groove wall of the mounting through hole 121, i.e., the groove wall on the inner side of the second annular groove 122, when the movable box cover 2 moves relative to the fixed box body in the mounting through hole 121, realizes plugging or opening of the annular fitting gap 124, thereby realizing control of the blocking or communication of the accommodating cavity 3 and the second ventilation passage.

[0062] Referring to Figures 6-7 In an embodiment, the movable box cover 2 is provided with a sliding block 21, and the upper box body 12 is provided with a sliding channel 13 matched with the sliding block 21, the sliding channel 13 including a horizontal sliding channel 131 and a vertical sliding channel 132 extending downward from one end of the horizontal sliding channel 131; under the action of an external force, the movable box cover 2 moves upward along the vertical sliding channel 132 through the sliding block 21 to gradually open the second ventilation passage until reaching the horizontal sliding channel 131, and then moves in the horizontal direction to lock the movable box cover 2 and the fixed box body.

[0063] Specifically, the outer side wall of the movable box cover 2 is provided with a sliding block 21, and the hole wall of the mounting through hole 121 of the upper box body 12 is provided with a sliding channel 13, the shape of the sliding channel 13 is inverted L-shaped; under the action of an external force, when the movable box cover 2 moves upward along the vertical sliding channel 132 through the sliding block 21, the annular fitting gap 124 is gradually opened, and when reaching the horizontal sliding channel 131, the movable box cover 2 moves in the horizontal direction to the horizontal sliding channel 131, the sliding block 21 is located on the bottom surface of the horizontal sliding channel 131, and under the action of gravity and friction, the movable box cover 2 and the fixed box body are locked. When the movable box cover 2 moves downward along the vertical sliding channel 132 through the sliding block 21 under the action of an external force, the annular fitting gap 124 is gradually closed, and when the sliding block 21 moves to the bottom surface of the vertical sliding channel 132, the annular fitting gap 124 is completely closed.

[0064] In another embodiment, the vertical slide 132 extends downward from one end of the horizontal slide 131 to the mounting through hole 121, and the reinforcing ribs are arranged in the accommodating groove 111 of the lower box body 11 in sequence along the circumference and directly below the vertical slide 132. When the movable box cover 2 moves downward along the vertical slide 132 under the action of an external force, the annular fitting gap 124 gradually closes, and when the sliding block 21 is supported by the reinforcing ribs, the annular fitting gap 124 is completely closed. In this way, on the one hand, the structural strength of the lower box body 11 is improved, and on the other hand, the processing difficulty of the slide 13 is reduced.

[0065] In one embodiment, the mounting through hole 121 is a circular mounting through hole, the movable box cover 2 is a cylindrical movable box cover matched with the circular mounting through hole 121, the slide 13 is arranged on the hole wall of the mounting through hole 121, and the upper box body 12 has at least two slides 13 arranged in sequence along the circumference. The movable box cover 2 has a sliding block 21 corresponding to the slide 13.

[0066] Specifically, the movable box cover 2 is a cylindrical movable box cover, and the mounting through hole 121 is a circular hole. In this way, the movable box cover 2 can rotate in the mounting through hole 121. Four slides 13 are arranged on the hole wall of the mounting through hole 121 along the circumference, and all the horizontal slides 131 are located on the same side of the corresponding vertical slide 132, so that when the movable box cover 2 rotates in one direction, all the sliding blocks 21 are inserted into the corresponding horizontal slides 131 to realize the locking of the movable box cover 2 and the fixed box body. Of course, the number of slides can be adjusted according to actual conditions, such as only two.

[0067] In one embodiment, the movable box cover 2 includes a top plate 22 and an annular circular side plate 23 formed by extending downward from the edge of the top plate 22, the top plate 22 is provided with a second air hole 221, and at least two fixing members 231 are arranged in sequence along the circumference on the inner wall of the annular circular side plate 23, and the fixing members 231 are configured to fixedly install the harmful substance decomposition member.

[0068] Specifically, the second air hole 221 includes a plurality of circular holes and a few strip-shaped holes, and is arranged on the top plate 22 in a circumferential direction. Air enters the upper chamber through the second air hole 221, contacts the harmful substance decomposition member fixed on the annular circular side plate 23, and the harmful substances such as formaldehyde and benzene series in the air are decomposed. The harmful substances in the air are completely eliminated.

[0069] Referring to Figure 6 In one embodiment, the fixing member 231 is a U-shaped plate with a notched inward.

[0070] Specifically, the width of the harmful substance decomposing member is slightly smaller than the notch width of the fixing member 231, so that the harmful substance decomposing member is engaged in the notch of the fixing member 231, and the fixing member 231 is in a U shape, which is simple in structure and facilitates disassembly and assembly of the harmful substance decomposing member.

[0071] In one embodiment, the top plate 22 comprises a hand-holding portion 222 and a plate body surrounding the hand-holding portion 222, the hand-holding portion 222 protrudes from the plate body, and the plate body is downwardly inclined from the outer edge to the hand-holding portion 222, and the outer edge of the plate body is in the same plane as the top surface of the hand-holding portion 222; and the top surface of the box cover, the top surface of the hand-holding portion 222 and the outer edge of the plate body are in the same plane in the blocked state of the second air passage and the accommodating cavity 3.

[0072] Specifically, the inclined arrangement of the plate body makes the hand-holding portion 222 protrude relative to the top plate 22, providing a visual protruding effect for the hand-holding portion 222. The hand-holding portion 222 is square, and opposite sides thereof are respectively provided with gripping surfaces that fit human fingers, facilitating gripping by the human hand. In the blocked state of the second air passage and the accommodating cavity 3, the air purification device is in a stop working state, and the top surface of the box cover, the top surface of the hand-holding portion 222 and the outer edge of the plate body are in the same plane, and the packaging paper can be laid flat on this plane, facilitating packaging for transportation.

[0073] Continuing to refer to Figure 6 In one embodiment, the annular circular side plate 23 is further provided with a third air hole 232, and the third air hole 232 is blocked by the fixed box body in the blocked state of the second air passage and the accommodating cavity 3, and the third air hole 232 is completely opened when the movable box cover 2 moves upward relative to the fixed box body to be locked with the fixed box body.

[0074] Specifically, the second air hole 221 and the third air hole 232 form a first air passage, and the third air hole 232 is a plurality of strip-shaped holes arranged circumferentially on the movable box cover 2, and the third air hole 232 can increase the exchange efficiency of air between the upper chamber and the outside, thereby improving the purification efficiency of the harmful substance decomposing member.

[0075] When the air purification device is working, the movable box cover 2 moves upward relative to the fixed box body to be locked with the fixed box body, the second air passage and the accommodating cavity 3 are in communication, air enters the accommodating cavity 3 through the first air hole 123; air enters the accommodating cavity 3 through the second air hole 221; the third air hole 232 is completely opened, and air enters the accommodating cavity 3 through the third air hole 232.

[0076] When the air purification device stops working, the movable box cover 2 moves downward relative to the fixed box body to be fixed, the second air passage and the accommodating cavity 3 are blocked, and the third air hole 232 is also blocked by the fixed box body, so that air cannot enter the accommodating cavity 3 through the first air hole 123 and the third air hole 232.

[0077] In one embodiment, the harmful substance adsorption material includes activated carbon, nano-mineral crystals; and / or, the harmful substance decomposition member includes a negative oxygen ion sponge.

[0078] Specifically, the activated carbon adsorbs harmful substances in the air mainly by physical adsorption principle. The activated carbon has highly developed pore structure and very large specific surface area. The surface area of the micropores in 1 gram of activated carbon material can be as high as 800-1500 square meters when expanded. The size of these micropores is comparable to the diameter of harmful substance molecules, so when harmful substances diffuse into the micropores in the air, the harmful substances will be adsorbed by the micropores of the activated carbon due to the van der Waals force between molecules, until the pores in the activated carbon are filled.

[0079] The nano-mineral crystals also have pore structure on one hand, and the same adsorption principle as activated carbon, and on the other hand, the pore surface of the nano-mineral crystals is polar, while harmful substances such as formaldehyde are polar molecules. The polar nano-mineral crystal pore surface and the polar harmful substances will produce strong mutual attraction, thereby adsorbing harmful substances such as formaldehyde.

[0080] The negative oxygen ion sponge can be circular or square and is clamped and fixed in the movable box cover 2 by the fixing member 231. The negative oxygen ion has strong oxidizing property, and when a formaldehyde molecule contacts the negative oxygen ion, the negative oxygen ion will forcibly take away the electrons in the formaldehyde molecule, causing the chemical bond of the formaldehyde molecule to break, thereby decomposing the formaldehyde into harmless substances such as carbon dioxide and water. In this way, the formaldehyde is completely decomposed. The negative oxygen ion sponge itself has a certain pore structure, similar to the adsorption principle of activated carbon, and when the negative oxygen ion encounters positive ions such as ammonia gas and other positively charged particles in the air, a neutralization reaction occurs, forming larger particle groups, which are more easily physically adsorbed or settled to the ground, thereby reducing harmful substances suspended in the air.

[0081] Chlorine dioxide particles can be placed in the pores of the negative oxygen ion sponge, and chlorine dioxide has strong oxidizing property and can decompose harmful substances such as formaldehyde and benzene series.

[0082] Through the combination of physical adsorption and chemical decomposition and other ways, the air purification efficiency is improved, and harmful substances can be completely removed.

[0083] Having described above several embodiments of the disclosure, any modifications and variations that fall within the scope of the described embodiments are also contemplated by the inventor(s). As such, the foregoing description is not intended to limit the scope of the disclosure, and it is recognized that modifications are contemplated which can provide one or more benefits and which are within the scope of the disclosure. The disclosure is defined by the appended claims.

Claims

1. An air purification device, characterized in that, The air purification device includes: Fix the box body; The movable box cover (2) is configured to install a hazardous substance decomposition component and fits with the fixed box body to form a receiving cavity (3). The hazardous substance decomposition component is located in the receiving cavity (3) and divides the receiving cavity (3) into an upper chamber and a lower chamber. The movable box cover (2) has a first ventilation channel communicating with the upper chamber, and the fixed box body has a second ventilation channel communicating with the lower chamber. The lower chamber is used to place hazardous substance adsorbent material. When the movable cover (2) is subjected to force, it moves relative to the fixed box body to block or open the second ventilation channel and the receiving cavity (3), and when the movable cover (2) moves relative to the fixed box body to open the second ventilation channel and the receiving cavity (3), the movable cover (2) and the fixed box body are locked.

2. The air purification device according to claim 1, characterized in that, The fixed housing includes: The lower box (11) is provided with an open upper receiving groove (111). The upper box body (12) is detachably connected to the lower box body (11) and has a mounting through hole (121) communicating with the receiving groove (111). The movable box cover (2) is disposed in the mounting through hole (121) and surrounds the receiving groove (111) to form the receiving cavity (3). The second ventilation channel is opened on the upper box body (12) and / or the lower box body (11).

3. The air purification device according to claim 2, characterized in that, The lower box (11) has a first annular groove (112) with an upper opening surrounding the receiving groove (111), and the upper box (12) has a second annular groove (122) with a lower opening surrounding the mounting through hole (121). After the upper box (12) and the lower box (11) are fitted together, the first annular groove (112) and the second annular groove (122) enclose to form a ventilation cavity (14). A first ventilation hole (123) is provided on the outer side wall of the upper box (12), and an annular fitting gap (124) is provided between the inner side walls of the upper box (12) and the lower box (11). The first ventilation hole (123), the ventilation cavity (14) and the annular fitting gap (124) are connected to form a second ventilation channel. When the movable cover (2) is subjected to force, it blocks the second ventilation channel and the receiving cavity (3) by sealing the annular fitting gap (124).

4. The air purification device according to claim 3, characterized in that, The movable box cover (2) has a slider (21), and the upper box body (12) has a slide (13) adapted to the slider (21). The slide (13) includes a horizontal slide (131) and a vertical slide (132) formed by extending downward from one end of the horizontal slide (131). Under the action of external force, the movable box cover (2) moves upward along the vertical slide (132) through the slider (21) to gradually open the second ventilation channel until it reaches the horizontal slide (131), and then moves horizontally to lock the movable box cover (2) and the fixed box body.

5. The air purification device according to claim 4, characterized in that, The mounting through hole (121) is a circular mounting through hole, the movable box cover (2) is a cylindrical movable box cover adapted to the circular mounting through hole, the slide (13) is opened on the hole wall of the mounting through hole (121), and the upper box body (12) has at least two slides (13) arranged sequentially along the circumference, and the movable box cover (2) has a slider (21) corresponding to the slide (13).

6. The air purification device according to claim 4, characterized in that, The movable box cover (2) includes a top plate (22) and an annular circular side plate (23) formed by extending downward from the edge of the top plate (22). The top plate (22) has a second vent hole (221). At least two fasteners (231) are arranged circumferentially on the inner wall of the annular circular side plate (23). The fasteners (231) are configured to fix the harmful substance decomposition component.

7. The air purification device according to claim 6, characterized in that, The fastener (231) is a U-shaped plate with the groove facing inward.

8. The air purification device according to claim 6, characterized in that, The top plate (22) includes a handle (222) and a plate surrounding the handle (222). The handle (222) protrudes from the plate, and the plate is inclined downward from the outer edge toward the handle (222). The outer edge of the plate and the top surface of the handle (222) are on the same plane. When the second ventilation channel and the receiving cavity (3) are blocked, the top surface of the box cover, the top surface of the handle (222) and the outer edge of the plate are on the same plane.

9. The air purification device according to claim 6, characterized in that, The annular circular side plate (23) is also provided with a third vent hole (232). When the second venting channel and the receiving cavity (3) are blocked, the third vent hole (232) is blocked by the fixed box body. When the movable box cover (2) moves upward relative to the fixed box body to lock with the fixed box body, the third vent hole (232) is fully opened.

10. The air purification device according to claim 1, characterized in that, The harmful substance adsorbent material includes activated carbon and nano-mineral crystals; and / or, the harmful substance decomposition component includes a negative oxygen ion sponge.

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