Cylindrical simple air cleaner

Abstract

To provide a simple air cleaner.SOLUTION: A simple air cleaner 1 comprises a body part 2, a mesh member 3 and a filter 4. A support column part 31 of the body part 2 is extended to become in an extension state and is covered with the mesh member 3 with the filter 4 from above an upper cylindrical part 21 of the body part 2 and fixed by using a tape, etc. When a fan accommodated in the upper cylindrical part 21 is operated, air is sucked from a side surface of a cylindrical space 40 and the air is discharged to an upper surface. This enables air cleaning. The simple air cleaner is vertically long with only an area of the body part 2 in a horizontal direction. That is, by extending the support column part 31, a surface area for sucking the air can be extended. Due to this, the air cleaner easily assembled and saving a space can be provided.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a simple air cleaning device. [Background technology]

[0002] The COVID-19 outbreak that hit the world in the spring of 2020 highlighted the importance of disinfecting bacteria and inactivating viruses indoors (hereafter referred to as antibacterial treatment and antiviral treatment, respectively).

[0003] In particular, in the event of an earthquake, evacuees may gather in gymnasiums or other locations, and a simple system for purifying the air is desired for such locations.

[0004] Patent Document 1 discloses an air purifying device that has a simple configuration and prevents the spread of droplets.

[0005] The air purifier disclosed in Patent Document 1 uses a fan installed inside the device to draw air into the device, and while this method is effective for drawing in droplets in small spaces, it is not suitable for purifying the air in a room large enough to accommodate one or more people. This is clear from paragraphs 0027 and 0028 of Patent Document 1. [Prior art documents] [Patent documents]

[0006] [Patent Document 1] Publication No. 3231203 Summary of the Invention [Problem to be solved by the invention]

[0007] In order to solve this problem, the inventor filed a patent application for a simple air purifier with an outer frame made of cardboard (see Patent Application No. 2022-180889). However, this simple air purifier required assembling multiple pieces of cardboard, which was a cumbersome process to complete.

[0008] The object of the present invention is to solve the above problems and provide a simple air purifier that is easy to assemble.

Means for Solving the Problems

[0009] (1) The simple air purifier according to the present invention includes: A) a main body having the following: a1) a lower cylindrical portion having an upper surface and a ground surface facing the upper surface; a2) an upper cylindrical portion located at a predetermined distance from the lower cylindrical portion, the upper cylindrical portion being cylindrical and having a facing surface facing the upper surface of the lower cylindrical portion; a3) a support portion located between the upper surface of the lower cylindrical portion and the facing surface of the upper cylindrical portion; B) a net-like member attached to the lower cylindrical portion and the upper cylindrical portion so as to cover the outer space of the support portion and the cylindrical space defined by the upper surface of the lower cylindrical portion and the facing surface of the upper cylindrical portion; C) a sheet-like filter covering the surface of the net-like member. The upper cylindrical portion is provided with a fan for discharging the air in the cylindrical space to the outside of the cylindrical space. When the air in the cylindrical space is discharged to the outside of the cylindrical space by the fan, the cylindrical space becomes a negative pressure, and the air outside the cylindrical space is sucked into the cylindrical space through the filter. Thus, air purification treatment is performed. Such a simple air purifier is composed of the main body, the net-like member, and the filter, so it is easy to assemble.

[0010] (2) The simple air purifier according to the present invention includes: A) a main body having the following: a1) a lower cylindrical portion having an upper surface and a grounding surface; a2) an upper cylindrical portion located at a predetermined distance from the lower cylindrical portion, the upper cylindrical portion being cylindrical and having a facing surface facing the upper surface of the lower cylindrical portion; a3) a support portion located between the upper surface of the lower cylindrical portion and the facing surface of the upper cylindrical portion; B) a net-like member attached to the lower cylindrical portion and the upper cylindrical portion so as to cover the outer space of the support portion and the cylindrical space defined by the upper surface of the lower cylindrical portion and the facing surface of the upper cylindrical portion. A sheet-like filter for covering the cylindrical space is attachable to the surface of the net-like member. The upper cylindrical portion is provided with a fan for discharging the air in the cylindrical space to the outside of the cylindrical space. Thus, since the simple air purifier according to the present invention is composed of the main body portion and the net-like member, it is easy to assemble.

[0011] (3) In the simple air purifier according to the present invention, the net-like member has a blocking structure for preventing the filter from being sucked into the cylindrical space even when the cylindrical space is in a negative pressure state due to the air in the cylindrical space being discharged to the outside of the cylindrical space. Therefore, the suction of the filter into the cylindrical space can be blocked.

[0012] (4) In the simple air purifier according to the present invention, the support portion is telescopic.

[0013] Therefore, it can be stored compactly when stored.

[0014] The meanings of the terms in this specification will be described. In the embodiment, "cylindrical" means a cylinder in the embodiment, but it may be columnar, for example, including the entasis shape of a cylinder and the entasis shape of a polygonal column. Further, it also includes a concept that is not columnar but conical (thicker at the top and thicker at the bottom).

[0015] The features, other objects, uses, effects, etc. of this invention will become clear by considering the embodiments and the drawings.

Brief Description of the Drawings

[0016]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Embodiments for Carrying Out the Invention

[0017] Embodiments of the present invention will be described with reference to the drawings.

[0018] 1. First Embodiment FIG. 1 shows an external side view of the simple air purifier 1. The simple air purifier 1 is composed of a main body 2, a net-like member 3, and a filter 4. In FIG. 1, the main body 2 is not shown in cross-section. Also, the net-like member 3 and the filter 4 are not hatched.

[0019] FIG. 2 shows a perspective view of the state where the filter 4 is removed from the simple air purifier 1 of FIG. 1.

[0020] Details of the main body 2 in FIG. 2 will be described with reference to FIG. 3. The main body 2 has a lower cylindrical portion 11, an upper cylindrical portion 21, and a support portion 31 as shown in FIG. 3A.

[0021] FIG. 3B shows a view in the direction of the arrow seen from the side of the main body 2. The lower cylindrical portion 11 has an upper surface 12, a grounding surface 13 facing the upper surface 12, and a side surface 14 between the upper surface 12 and the grounding surface 13, and functions as a base when installing the main body 2. Inside the lower cylindrical portion 11, a battery for a motor (DC5V, 6000 mAh), which will be described later, is stored. Also, the lower cylindrical portion 11 incorporates a control board for controlling the operation of a fan, which will be described later, and a light receiving portion 16 for infrared communication is provided on the side surface 14 of the lower cylindrical portion 11.

[0022] The upper cylindrical portion 21 is located at a predetermined distance from the lower cylindrical portion 11 and has an opposing surface 22 that faces the upper surface of the lower cylindrical portion 11. Further, the upper cylindrical portion 21 stores a fan (not shown) inside, inhales air from an intake port (not shown) provided on the opposing surface 22, and discharges it from a discharge surface 23 (see FIG. 3C).

[0023] In this embodiment, as the fan, a fan with blades having a diameter of 18.5 cm was adopted, and as the motor, a DC 10.8V, 3.5A motor was adopted. In this case, the relationship between the rotation speed of the motor and the wind speed was 1st speed 1000 rpm - wind speed 2.54 m / s, 2nd speed 1100 rpm - wind speed 3.06 m / s, 3rd speed 1300 rpm - wind speed 3.59 m / s, 4th speed 1400 rpm - wind speed 3.94 m / s, 5th speed 1550 rpm - wind speed 4.30 m / s, 6th speed 1730 rpm - wind speed 4.12 m / s.

[0024] In this embodiment, as the main body portion 2, a circulating fan (WT-F188) manufactured by Deep Sense Waitie Shijia Technology Co., Ltd. of the WITSEGA Group was adopted, but it is not limited to this.

[0025] The support column portion 31 is located between the upper surface of the lower cylindrical portion and the opposing surface of the upper cylindrical portion, and supports the upper cylindrical portion 21. Further, the support column portion 31 has a telescopic structure and can be compactly stored as shown in FIG. 3C.

[0026] The mesh member 3 will be described with reference to FIG. 4. As shown in FIG. 4A, the mesh member 3 has a cylindrical shape and is composed of a mesh surface 51 and a wire portion 52 which is a framework portion. In this embodiment, the wire portion is composed of a wire of hard steel wire having a diameter of 2 mm and having spring properties, but it is not limited to this. As will be described later, when the mesh member 3 is set on the main body portion 2, the mesh surface 51 covers the cylindrical space 40 (see FIG. 3B) defined by the outer space of the support column portion 31 of the main body portion 2 and the upper surface 12 of the lower cylindrical portion 11 and the opposing surface 22 of the upper cylindrical portion 21.

[0027] The mesh surface 51 of the mesh member 3 prevents the filter 4 located outside the cylindrical space 40 from being drawn inside by the suction of the fan in the upper cylindrical portion 21. In FIG. 1, although a gap corresponding to the thickness of the wired portion 2 is formed between the mesh surface 51 and the filter 4, a part of the filter 4 is drawn onto the mesh surface 51 by the suction of the fan.

[0028] In this embodiment, the mesh member 3 is composed of a mesh surface 51 and a wire portion 52. However, it is not limited to this. If the pitch of the wire portion 52 can be reduced and the gap between the wires can be made smaller, thereby preventing the filter 4 from being drawn inside, the mesh surface 51 is not essential.

[0029] Also, in this embodiment, the mesh is made of an Oxford fabric made of polyurethane, but it is not limited to this, and meshes such as polyvinyl chloride, vinyl chloride resin, and polyester may also be used.

[0030] Also, from the viewpoint of air pressure loss, the opening ratio of the mesh surface 51 is preferably as high as possible so that the filter 4 is not drawn inside.

[0031] If the yarn diameter of the fabric of the mesh surface 51 is made too large, problems may occur during folding or sewing.

[0032] Also, if folding is not considered, it may be composed of a metal mesh, or a wire portion 52 that functions as a framework may be made of a wire or the like without a spring.

[0033] Also, in this embodiment, the mesh member 3 is configured by sewing the wire to the Oxford fabric of the mesh surface 51, but it is not limited to this.

[0034] A sheet-shaped filter 4 that covers the surface of the net-like member 3 will be described. In the present embodiment, as the filter 4, a Clearwin filter manufactured by CLEAIR Co., Ltd. in a sheet shape is adopted. Such a Clearwin filter is a medium-performance filter that can collect particles with a diameter of 0.3 μm at a collection efficiency of about 50 to 90% by the measurement method of JIS9908B format 2. The pressure loss is 40 to 45 Pa at a wind speed of 1 m / s, and the material is a charged non-woven fabric of polyolefin fiber. Note that the filter 4 is not limited to this.

[0035] The filter 4 is formed in a sheet shape and is rectangular. Its size is such that when one side extends the support column part of the main body part 2, there is no gap between the lower cylindrical part 11 and the upper cylindrical part 21, and the other side is such that it can overlap slightly when wound around the net-like member 3.

[0036] A method of using the simple air purifier 1 will be described.

[0037] 1) Extend the support column part 31 of the main body part 2 to the extended state shown in Fig. 3B. 2) As shown in Fig. 4C, wind the filter 4 around the net-like member 3 and temporarily fix the filter 4 to the net-like member 3 with adhesive tape or the like (not shown). 3) As shown in Fig. 5A, cover the net-like member 3 with the filter 4 from above the upper cylindrical part 21 of the main body part 2. 4) Fix two places at the ends of the net-like member 3 (on the side of the lower cylindrical part 11 and the upper cylindrical part 21) with gum tape or the like so that there is no air leakage.

[0038] In this state, when a fan (not shown) stored in the upper cylindrical part 21 is operated, air is inhaled from the side surface of the cylindrical space 40 and discharged from the upper surface. Thereby, air purification is performed. At this time, the cylindrical space 40 becomes a negative pressure, and the filter 4 is drawn inward, but the net-like member 3 prevents the filter 4 from being drawn into the inside of the cylindrical space 40.

[0039] The simple air purifier 1 is vertically long, with a horizontal area approximately equal to that of the main body 2. That is, by extending the support columns 31, a larger surface area for air intake can be achieved. This enables the provision of a space-saving air purifier with a high cleaning rate per unit time.

[0040] When storing the simple air purifier 1, the filter 4 and the mesh member 3 are removed. The mesh member 3 is folded as shown in Fig. 4B and fixed with the fixing string 54 so that it does not extend. The support columns 31 of the main body 2 can be contracted as shown in Fig. 3C to reduce the storage space.

[0041] In this embodiment, the mesh member 3 with the filter 4 attached is set on the main body 2. However, the mesh member 3 may be wound around the main body 2 first, and then the filter 4 may be attached.

[0042] In the above embodiment, a charged nonwoven fabric with a pressure loss of 40 - 45 Pa is adopted, but it is not limited thereto. A charged nonwoven fabric with a pressure loss of 20 - 90 Pa may be used, and preferably, a charged nonwoven fabric (medium-performance filter) with a pressure loss of 40 - 90 Pa is preferred.

[0043] Also, as shown in Fig. 5B, the portion 15 where the mesh member 3 of the lower cylindrical part 11 abuts may be subjected to inlay processing so that the mesh member 3 fits in.

[0044] Since the support columns 31 of the main body 2 have a telescopic structure, when not needed, less storage space is required. It can also be folded and carried.

[0045] In this embodiment, the case where the cylindrical space 40 formed by the mesh member 3 is cylindrical has been described. However, it may be configured to have an entasis shape. Furthermore, in addition to a cylinder, it may be composed of a polygonal prism with three or more sides. In the case of a polygonal prism, a part may be thick like an entasis shape. Furthermore, instead of a columnar shape, it may be conical (with a smaller or larger upper part).

[0046] In this embodiment, the other side of the filter 4 is set to be such that it can overlap slightly when wound around the mesh member 3, but it can also be set to be such that it can overlap slightly when wound around the mesh member 3 two or three times. As a result, it becomes possible to increase the collection efficiency of the filter. For example, in the case of a filter manufactured by the same Claire company, the collection efficiency when doubled exceeds 90% (measurement method according to JIS9908B format 2), reaching the quasi-HEPA standard, and air purification could be performed in a shorter time.

[0047] In this way, the simple air purifier 1 performs air purification by winding the filter 4 around the cylindrical mesh member 3. Therefore, the air purification ability can be adjusted by changing the number of layers (changing the number of overlaps) of the sheet-shaped filter. The number of layers of the filter may be determined according to the size of the room.

[0048] That is, the air purification method using this simple air purifier 1 can be grasped as an invention as follows.

[0049] A) A main body having the following: a1) A lower cylindrical part having an upper surface and a grounding surface facing the upper surface. a2) An upper cylindrical part located at a predetermined distance from the lower cylindrical part, the cylindrical upper cylindrical part having a facing surface facing the upper surface of the lower cylindrical part. a3) A support part located between the upper surface of the lower cylindrical part and the facing surface of the upper cylindrical part. B) A sheet-shaped filter that covers the cylindrical space defined by the outer space of the support part and the facing surface of the lower cylindrical part and the upper cylindrical part. Comprising: The upper cylindrical part is provided with a fan for discharging the air in the cylindrical space to the outside of the cylindrical space. A method for air purification using a simple air purifier, characterized by: Varying the number of layers of the sheet-shaped filter according to the size of the air purification space.

[0050] In the above, the present invention has been described as a preferred embodiment, but it is used for the purpose of explanation rather than limitation, and it can be changed within the scope of the appended claims without departing from the scope and spirit of the present invention.

Explanation of Reference Numerals

[0051] 1 Simple air purifier 2 Main body 3 Mesh member 4 Filter 11 Lower cylindrical part 12 Upper surface 13 Grounding surface 14 Side surface 21 Upper cylindrical part 22 Opposite surface 31 Support part 40 Cylindrical space 51 Mesh surface 52 Wire part

Claims

1. A) a body portion having: a1) a lower cylindrical portion having an upper surface and a ground surface facing the upper surface; a2) an upper cylindrical portion positioned a predetermined distance from the lower cylindrical portion, the upper cylindrical portion having an opposing surface opposing the upper surface of the lower cylindrical portion; a3) a support portion located between the upper surface of the lower cylindrical portion and the opposing surface of the upper cylindrical portion; B) a mesh member attached to the lower cylindrical portion and the upper cylindrical portion so as to cover the outer space of the support portion and the cylindrical space defined by the upper surface of the lower cylindrical portion and the opposing surface of the upper cylindrical portion; C) a sheet-like filter that covers the cylindrical space covered by the mesh member; Equipped with the upper cylindrical portion is provided with a fan that exhausts air from the cylindrical space to the outside of the cylindrical space; A simple air purifying device characterized by the above.

2. A) a body portion having: a1) a lower tubular portion having an upper surface and a ground surface; a2) an upper cylindrical portion positioned a predetermined distance from the lower cylindrical portion, the upper cylindrical portion having an opposing surface opposing the upper surface of the lower cylindrical portion; a3) a support portion located between the upper surface of the lower cylindrical portion and the opposing surface of the upper cylindrical portion; B) A mesh member is attached to the lower cylindrical portion and the upper cylindrical portion so as to cover the outer space of the support portion and the cylindrical space defined by the upper surface of the lower cylindrical portion and the opposing surface of the upper cylindrical portion, and the mesh member has a surface on which a sheet-like filter covering the cylindrical space can be attached; the upper cylindrical portion is provided with a fan that exhausts air from the cylindrical space to the outside of the cylindrical space, Being, A simple air purifying device characterized by the above.

3. The simple air purifying device according to claim 1 or 2, the mesh member has a blocking structure that prevents the filter from being sucked into the cylindrical space even when the cylindrical space is put into a negative pressure state due to air being discharged from the cylindrical space to the outside; A simple air purifying device characterized by the above.

4. The simple air purifying device of claim 3, The support portion is extendable and retractable; A simple air purifying device characterized by the above.

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