Photocatalytic air purification device

Abstract

The utility model provides a photocatalytic air purification device, which belongs to the technical field of air purification devices and comprises a base, a shell and a top seat. The top of the base sinks inwards to form a connecting part; the bottom of the shell is sleeved outside the connecting part, and a first front filter screen is arranged between the shell and the connecting part; a detachable second front filter screen is arranged between the base and the shell so as to seal an air inlet space formed by the sunken top of the base; an internal filter screen, an exhaust fan and a catalyst box are sequentially arranged in the shell from bottom to top; the bottom of the top base extends into the shell, and an ultraviolet lamp is arranged at the bottom end of the top base. According to the utility model, the first front filter screen is horizontally arranged and is perpendicular to the air inlet direction, and particulate impurities are adhered to the bottom surface of the first front filter screen and can fall under the action of gravity, so that the probability of blockage is reduced. The second front filter screen is detachably connected to the shell and the base and can be detached for maintenance according to needs, so that particulate matter impurities are prevented from blocking the filter screen.

Description

TECHNICAL FIELD

[0001] The utility model relates to air purification device and technical field, specifically relates to a kind of photocatalytic air purification device. BACKGROUND

[0002] Photocatalytic air purifier utilizes photocatalyst to generate electron and hole under light, these electron and hole have very strong oxidation-reduction capacity, and react with harmful material in air, and it is decomposed into harmless carbon dioxide and water etc..The front filter screen is provided at the air inlet end of the existing photocatalytic air purification device, to filter out the particulate impurities inhaled air, with the increase of use time, a large amount of impurities will be accumulated on the front filter screen, thereby causing blockage, affecting the air intake effect.Therefore, the utility model provides a kind of photocatalytic air purification device. SUMMARY

[0003] The utility model aims at providing a kind of photocatalytic air purification device.

[0004] To solve the above technical problem, the utility model aims at being realized as follows:

[0005] A kind of photocatalytic air purification device, comprising: base, shell and top seat;The shell is arranged between the base and the top seat;

[0006] The top of the base is inwardly recessed to form a connecting portion;The top outer wall of the connecting portion is fixedly connected with the bottom inner wall of the shell by the first connecting rod extending to the outside of the base, and the bottom of the first connecting rod is provided with a first front filter screen;Second front filter screen is arranged between the base and the shell to close the air inlet space formed by the recessed top of the base;

[0007] The inside of the shell is sequentially provided with internal filter screen, exhaust fan and catalyst box from bottom to top;

[0008] The top of the shell is provided with an opening;The bottom of the top seat extends into the inside of the shell from the opening, and the bottom end of the top seat is provided with ultraviolet lamp;The top seat is fixedly connected with the shell by the second connecting rod.

[0009] On the basis of the above scheme and as a preferred scheme of the above scheme, the base is circular;The shell is circular, and the diameter is same with the base, and the bottom is sleeved on the outside of the connecting portion, to form air inlet channel.

[0010] On the basis of the above scheme and as a preferred scheme of the above scheme, the number of the first connecting rod is several, and is evenly distributed along the circumferential direction of the connecting portion.

[0011] Based on the above solution and as a preferred embodiment of the above solution, the bottom of the outer casing is lower than the first pre-filter.

[0012] Based on the above solution and as a preferred embodiment of the above solution, the bottom outer wall of the outer shell and the bottom of the connecting part are recessed to form an installation area; the second pre-filter is installed in the installation area.

[0013] Based on the above scheme and as a preferred embodiment of the above scheme, the second pre-filter is magnetically installed in the installation area.

[0014] Based on the above scheme and as a preferred embodiment of the above scheme, the top seat is circular with the same diameter as the outer shell, and the bottom is provided with an inner protrusion to extend into the interior of the outer shell, so that an exhaust channel is formed between the top seat and the outer shell.

[0015] Based on the above scheme and as a preferred embodiment of the above scheme, the two ends of the second connecting rod are respectively connected to the inner protrusion and the inner wall of the outer shell, and there are several rods, which are evenly distributed along the circumference of the inner protrusion.

[0016] The beneficial effects of this invention are as follows: This air purifier is equipped with a first pre-filter and a second pre-filter at the air inlet, which can filter out particulate impurities in the air and improve the air purification effect. The first pre-filter is horizontally arranged and perpendicular to the air inlet direction. Particulate impurities adhere to the bottom surface of the first pre-filter and can fall down under the action of gravity, reducing the probability of clogging. The second pre-filter is detachably connected to the outer shell and the base, and can be removed for maintenance as needed to prevent particulate impurities from clogging the filter. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model.

[0018] Figure 2 This is a schematic diagram of the structure of this utility model after the second pre-filter is hidden.

[0019] Figure 3 This is a partial structural diagram of the present utility model.

[0020] Figure 4 This is a cross-sectional view of the present invention.

[0021] Figure 5 for Figure 4 Enlarged view of a specific area.

[0022] In the figure: 1, base; 2, shell; 3, top seat; 4, connecting part; 5, first connecting rod; 6, first front filter screen; 7, second front filter screen; 8, internal filter screen; 9, exhaust fan; 10, catalyst box; 11, ultraviolet lamp; 12, second connecting rod; 13, inner convex part. DETAILED DESCRIPTION

[0023] The utility model is further illustrated below in combination with the drawings and specific embodiments.

[0024] As shown in Figure 1 and Figure 2 , a kind of photocatalytic air purification device, comprising: base 1, shell 2 and top seat 3, shell 2 is arranged between base 1 and top seat 3.

[0025] Base 1 is circular, and top is inwardly recessed to form connecting part 4. Shell 2 is circular, and diameter is same with base 1, and bottom is set in the outside of connecting part 4, so that the air inlet passage is formed between the top of base 1 and the bottom of shell 2.

[0026] As shown in Figures 3 to 5 , the top outer wall of connecting part 4 is fixedly connected with the bottom inner wall of shell 2 by first connecting rod 5 extending to the outside of base 1. The number of first connecting rod 5 is several, and it is evenly distributed along the circumferential direction of connecting part 4, and the two ends are fixedly connected with the inner wall of shell 2 and the outer wall of connecting part 4. There is a gap between each first connecting rod 5 for air to pass through.

[0027] First connecting rod 5 bottom is provided with first front filter screen 6. First front filter screen 6 is circular ring structure, and is fixed between shell 2 and connecting part 4, and completely seals the air inlet passage. Preferably, the bottom of shell 2 is lower than first front filter screen 6, to play a certain protection effect.

[0028] The detachable second front filter screen 7 is arranged between base 1 and shell 2, to seal the air inlet space formed by the recess of the top of base 1. Specifically, the bottom outer wall of shell 2 and the bottom recess of connecting part 4 form a mounting area, and the second front filter screen 7 is installed in the mounting area, and the outer surface of the second front filter screen 7 is flush with the outer wall of shell 2 and the outer wall of base 1.

[0029] Preferably, the second front filter screen 7 is installed in the mounting area by magnetic attraction. Magnetic connection is stable and convenient to disassemble, which can improve the work efficiency of cleaning front filter screen.

[0030] The internal filter screen 8, exhaust fan 9 and catalyst box 10 are sequentially arranged in shell 2 from bottom to top. Filter screen 8 is used for further filtering air. Exhaust fan 9 is used to drive air flow. The catalyst box 10 has photocatalyst, which can purify the passing air in cooperation with ultraviolet lamp 11.

[0031] The top of the shell 2 is provided with an opening, the bottom of the top seat 3 extends into the shell 2 through the opening, and the bottom end of the top seat 3 is provided with an ultraviolet lamp 11. The top seat 3 is fixedly connected with the shell 2 through a second connecting rod 12. The ultraviolet lamp 11 is correspondingly arranged with the catalyst box 10.

[0032] The top seat 3 is circular, the diameter is the same as the shell 2, and the bottom is provided with a cylindrical inner protrusion 13 to extend into the shell 2, so that an air exhaust channel is formed between the top seat 3 and the shell 2. The second connecting rod 12 is connected with the inner protrusion 13 and the inner wall of the shell 2 at both ends, and the number is several, which are uniformly distributed along the circumference of the inner protrusion 13. Adjacent two second connecting rods 12 have a gap for air to pass through.

[0033] The above describes the preferred embodiments of the present application in detail. It should be understood that those skilled in the art can make many modifications and changes without creative labor according to the concept of the present application. Therefore, any technical solution obtained by logical analysis, reasoning or limited experiment on the basis of the prior art according to the concept of the present application shall be within the protection scope determined by the claims.

Claims

1. A photocatalytic air purification device, characterized by, The utility model relates to a kind of air purifiers, including: Base (1), shell (2) and top seat (3);The shell (2) is arranged between the base (1) and the top seat (3); The top of the base (1) is inwardly recessed to form a connecting part (4);The outer wall of the top of the connecting part (4) is fixedly connected with the inner wall of the bottom of the shell (2) by the first connecting rod (5) extending to the outside of the base (1), and the bottom of the first connecting rod (5) is provided with a first prefilter (6);The second prefilter (7) is arranged between the base (1) and the shell (2) to close the air inlet space formed by the recessed top of the base (1); The inner filter (8), exhaust fan (9) and catalyst box (10) are sequentially arranged in the shell (2) from bottom to top; The top of the shell (2) is provided with an opening;The bottom of the top seat (3) extends into the inside of the shell (2) through the opening, and the bottom end of the top seat (3) is provided with an ultraviolet lamp (11);The top seat (3) is fixedly connected with the shell (2) by the second connecting rod (12).

2. The photocatalytic air purification device according to claim 1, wherein The base (1) is circular;The shell (2) is circular, and the diameter is the same as the base (1), and the bottom is sleeved outside the connecting part (4) to form an air inlet channel.

3. The photocatalytic air purification device according to claim 2, wherein The number of the first connecting rod (5) is several, which are uniformly distributed along the circumferential direction of the connecting part (4).

4. The photocatalytic air purification device according to claim 2, wherein The bottom of the shell (2) is lower than the first prefilter (6).

5. The photocatalytic air purification device according to claim 2, wherein The bottom outer wall of the shell (2) and the bottom recess of the connecting part (4) form a mounting area;The second prefilter (7) is installed in the mounting area.

6. The photocatalytic air purification device according to claim 5, wherein The second prefilter (7) is installed in the mounting area by magnetic attraction.

7. The photocatalytic air purification device according to claim 2, wherein The top seat (3) is circular, and the diameter is the same as the shell (2), and the bottom is provided with an inner convex part (13) to extend into the inside of the shell (2), so that the top seat (3) and the shell (2) form an exhaust channel.

8. The photocatalytic air purification device according to claim 7, wherein The second connecting rod (12) is connected with the inner convex part (13) and the inner wall of the shell (2) at both ends, and the number is several, which are uniformly distributed along the circumference of the inner convex part (13).

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