Internal and external air exchange type formaldehyde purification device

Abstract

The internal and external air exchange type formaldehyde purification device comprises a box body; an exhaust channel is formed in the box body, an air inlet channel is formed in the box body, activated carbon boxes are slidably connected to the left side and the right side of the box body, side plates are fixedly connected to the right sides of the activated carbon boxes, hook grooves are formed in the upper ends of the side plates in a penetrating mode, and limiting pieces are fixedly connected to the left side and the right side of the box body. According to the internal and external air exchange type formaldehyde purification device, the limiting bolt is pulled upwards and taken down, then the activated carbon box can be taken out by pulling the side plate by hooking a hook groove with a hand, the activated carbon box is filled with activated carbon after being taken out, the activated carbon is flush with a top opening of the activated carbon box, and then the activated carbon box is installed in the box body and fixed. And when the two groups of activated carbon boxes are filled with activated carbon in the same way, when the exhaust fan works, gas can be purified by the activated carbon in the activated carbon boxes through the exhaust channel and the air inlet channel.

Description

Technical Field

[0001] The utility model relates to the technical field of formaldehyde purification, in particular to an internal and external air exchange type formaldehyde purification device. Background Art

[0002] Formaldehyde is a colorless gas that is not easily detected at low concentrations and can be easily masked by other odors, such as air fresheners. At high concentrations, it has a strong pungent and suffocating odor that irritates the eyes and nose. Formaldehyde is a toxic gas that seriously endangers human health. It is more common in furniture and decoration materials that do not meet quality standards. If patients are exposed to a high concentration of formaldehyde for a long time, they may experience dizziness, headaches, tears, nausea and vomiting, coughing, chest tightness, leukemia, etc., and in severe cases, death. Therefore, we should stay away from formaldehyde in our lives. Newly renovated houses should be ventilated frequently and the formaldehyde content should be monitored.

[0003] In the field of formaldehyde purification technology, people have many ways to purify formaldehyde, such as ventilation, activated carbon adsorption, photocatalyst technology, etc. However, some existing indoor and outdoor air exchange formaldehyde purification equipment can only exchange indoor and outdoor air, but cannot purify the exchanged gas, and the use effect is not good.

[0004] Therefore, it is necessary to provide an internal and external air exchange formaldehyde purification device to solve the above technical problems. Summary of the invention

[0005] The utility model provides an inside-outside air exchange type formaldehyde purification device, which solves the problem that some inside-outside air exchange type formaldehyde purification equipment can only exchange indoor and outdoor air but cannot purify the exchanged gas, resulting in poor use effect.

[0006] In order to solve the above technical problems, the utility model provides an internal and external air exchange type formaldehyde purification device, comprising: a box body;

[0007] An exhaust passage is provided inside the box, an air inlet passage is provided inside the box, activated carbon boxes are slidably connected to the left and right sides of the box, a side panel is fixedly connected to the right side of the activated carbon box, a hook groove is penetrated through the upper end of the side panel, limiting plates are fixedly connected to the left and right sides of the box, and there are multiple groups of limiting plates, the upper ends of the two groups of corresponding limiting plates are slidably connected to limiting bolts, and the side panel is fixed between the two groups of corresponding limiting plates by the limiting bolts, and an exhaust fan is provided on the back of the box, and the exhaust fan is communicated with the exhaust passage.

[0008] Preferably, a first bellows is fixedly connected to the front side of the box body, an exhaust port is fixedly connected to the front end of the first bellows, a second bellows is fixedly connected to the exhaust fan outlet, a first protective cover is fixedly connected to the other end of the second bellows, a third bellows is fixedly connected to the back side of the box body, the third bellows is connected to the air inlet channel, a second protective cover is fixedly connected to the other end of the third bellows, a fourth bellows is fixedly connected to the front side of the box body, the fourth bellows is connected to the air inlet channel, and a return air port is fixedly connected to the front end of the fourth bellows.

[0009] Preferably, both left and right sides of the box body are fixedly connected with mounting plates, and the upper end of the mounting plate is slidably connected with a first screw rod.

[0010] Preferably, a first nut is threadedly connected to the peripheral side surface of the first screw rod, and a threaded barrel is threadedly connected to the upper end of the first screw rod.

[0011] Preferably, the upper end of the threaded barrel is threadedly connected to a second screw rod, and the peripheral side surface of the second screw rod is slidably connected to a connecting piece.

[0012] Preferably, a second nut is threadedly connected to the side surface of the second screw rod, and a rivet is slidably connected to the bottom of the connecting piece.

[0013] Compared with the related art, the internal and external air exchange formaldehyde purification device provided by the utility model has the following beneficial effects:

[0014] The utility model provides an internal and external air exchange type formaldehyde purification device. The limit bolt is pulled upward to be removed, and then the activated carbon box can be taken out by pulling the side plate by hooking it at the hook groove with the hand. After taking it out, the activated carbon box is filled with activated carbon, and the activated carbon is flush with the top of the activated carbon box. Then the activated carbon box is installed in the box body and fixed. In the same way, two groups of activated carbon boxes are filled with activated carbon. At this time, when the exhaust fan is working, the gas passing through the exhaust channel and the air inlet channel can be purified by the activated carbon in the activated carbon box. The exchanged gas can be purified by this mechanism, and the use effect is better. The screw rod and the second screw rod are threadedly connected to the inside of the threaded barrel. The length of the first screw rod and the second screw rod entering the inside of the threaded barrel can be adjusted by rotating the first screw rod and the second screw rod. After the first screw rod and the second screw rod are adjusted, the first screw rod is plugged into the upper end of the mounting plate, and the first nut is installed to the bottom end of the first screw rod to limit the mounting plate. The connecting plate is fixed to the ceiling by nails, and the second screw rod is plugged into the bottom of the connecting plate, and then limited by the second nut. At this time, the box can be installed and fixed. This mechanism is convenient for installing the equipment and adjusting the installation height of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1A schematic structural diagram of a preferred embodiment of an internal and external air exchange formaldehyde purification device provided by the utility model;

[0016] Figure 2 for Figure 1 A schematic diagram of the cross-sectional structure of the box shown;

[0017] Figure 3 for Figure 1 The structural schematic diagram of the activated carbon box shown;

[0018] Figure 4 for Figure 1 Schematic diagram of the structure of the mounting plate and its corresponding parts shown.

[0019] Numbers in the figure: 1. Box body; 2. Exhaust duct; 3. Air inlet duct; 4. Activated carbon box; 5. Side panel; 6. Hook groove; 7. Limit plate; 8. Limit bolt; 9. Exhaust fan; 10. First bellows; 11. Exhaust port; 12. Second bellows; 13. First protective cover; 14. Third bellows; 15. Second protective cover; 16. Fourth bellows; 17. Return air port; 18. Mounting plate; 19. First screw rod; 20. First nut; 21. Threaded barrel; 22. Second screw rod; 23. Connecting plate; 24. Second nut; 25. Nail. DETAILED DESCRIPTION

[0020] The utility model is further described below in conjunction with the accompanying drawings and implementation modes.

[0021] Please refer to Figure 1 , Figure 2 , Figure 3 and Figure 4 ,in Figure 1 A schematic structural diagram of a preferred embodiment of an internal and external air exchange formaldehyde purification device provided by the utility model; Figure 2 for Figure 1 A schematic diagram of the cross-sectional structure of the box shown;

[0022] Figure 3 for Figure 1 The structural schematic diagram of the activated carbon box shown; Figure 4 for Figure 1 The structural schematic diagram of the mounting plate and its corresponding parts shown in the figure, an internal and external air exchange type formaldehyde purification device, comprising: a box body 1;

[0023] An exhaust duct 2 is opened inside the box body 1, an air inlet duct 3 is opened inside the box body 1, activated carbon boxes 4 are slidably connected on the left and right sides of the box body 1, and a side panel 5 is fixedly connected on the right side of the activated carbon box 4. A hook groove 6 is opened through the upper end of the side panel 5, and limiting plates 7 are fixedly connected on the left and right sides of the box body 1, and there are multiple groups of limiting plates 7. The upper ends of two groups of corresponding limiting plates 7 are slidably connected to limiting bolts 8, and the side panels 5 are fixed between the two groups of corresponding limiting plates 7 through the limiting bolts 8. An exhaust fan 9 is arranged on the back of the box body 1, and the exhaust fan 9 is connected to the exhaust duct 2. The setting of the side panel 5 is conducive to taking out and installing the activated carbon box 4.

[0024] A first bellows 10 is fixedly connected to the front side of the box body 1, an exhaust port 11 is fixedly connected to the front end of the first bellows 10, a second bellows 12 is fixedly connected to the air outlet of the exhaust fan 9, a first protective cover 13 is fixedly connected to the other end of the second bellows 12, a third bellows 14 is fixedly connected to the back side of the box body 1, the third bellows 14 is connected to the air inlet channel 3, a second protective cover 15 is fixedly connected to the other end of the third bellows 14, a fourth bellows 16 is fixedly connected to the front side of the box body 1, the fourth bellows 16 is connected to the air inlet channel 3, and a return air port 17 is fixedly connected to the front end of the fourth bellows 16.

[0025] The left and right sides of the box body 1 are fixedly connected with mounting plates 18 , and the upper end of the mounting plate 18 is slidably connected with a first screw rod 19 .

[0026] A first nut 20 is threadedly connected to the side surface of the first screw rod 19 , and a threaded barrel 21 is threadedly connected to the upper end of the first screw rod 19 . The first screw rod 19 can be moved into the inside of the threaded barrel 21 by rotating the first screw rod 19 .

[0027] A second screw rod 22 is threadedly connected to the upper end of the threaded barrel 21, and a connecting piece 23 is slidably connected to the side surface of the second screw rod 22. The bottom end of the second screw rod 22 can be moved toward the inside of the threaded barrel 21 by rotating the second screw rod 22. Moving the first screw rod 19 and the second screw rod 22 toward the inside of the threaded barrel 21 is beneficial for adjusting the distance between the mounting plate 18 and the connecting piece 23.

[0028] A second nut 24 is threadedly connected to the side surface of the second screw rod 22 , and a nail 25 is slidably connected to the bottom of the connecting piece 23 . The setting of the nail 25 is conducive to fixing the connecting piece 23 .

[0029] The working principle of the internal and external air exchange formaldehyde purification device provided by the utility model is as follows:

[0030] The first step: when in use, pull the limit bolt 8 upward to remove it, then hook it on the hook groove 6 with your hand and pull the side panel 5 to take out the activated carbon box 4. After taking it out, fill the activated carbon box 4 with activated carbon, and the activated carbon is flush with the top of the activated carbon box 4. Then install the activated carbon box 4 into the box body 1 and fix it. In the same way, fill the two groups of activated carbon boxes 4 with activated carbon. At this time, when the exhaust fan 9 is working, the gas can be purified by the activated carbon inside the activated carbon box 4 through the exhaust channel 2 and the air inlet channel 3.

[0031] Step 2: Thread the first screw rod 19 and the second screw rod 22 into the threaded tube 21. The length of the first screw rod 19 and the second screw rod 22 entering the threaded tube 21 can be adjusted by rotating the first screw rod 19 and the second screw rod 22. After adjusting the first screw rod 19 and the second screw rod 22, plug the first screw rod 19 into the upper end of the mounting plate 18, and install the first nut 20 to the bottom end of the first screw rod 19 to limit the mounting plate 18. Fix the connecting piece 23 to the ceiling by means of nails 25, plug the second screw rod 22 into the bottom of the connecting piece 23, and then limit it by means of the second nut 24. At this time, the box body 1 can be installed and fixed.

[0032] Compared with the related art, the internal and external air exchange formaldehyde purification device provided by the utility model has the following beneficial effects:

[0033] Pull the limit bolt 8 upward to remove it, then hook it on the hook groove 6 with your hand and pull the side plate 5 to take out the activated carbon box 4. After taking it out, fill the activated carbon into the activated carbon box 4 so that the activated carbon is flush with the top of the activated carbon box 4. Then install the activated carbon box 4 into the box body 1 and fix it. In the same way, fill the two groups of activated carbon boxes 4 with activated carbon. At this time, when the exhaust fan 9 is working, the gas passing through the exhaust channel 2 and the air inlet channel 3 can be purified by the activated carbon inside the activated carbon box 4. The exchanged gas can be purified by this mechanism, and the use effect is better. The first screw rod 19 and the second screw rod 22 are threadedly connected to the inside of the threaded cylinder 21, and the activated carbon box 4 is connected to the inside of the threaded cylinder 21. By rotating the first screw rod 19 and the second screw rod 22, the length of the first screw rod 19 and the second screw rod 22 entering the threaded tube 21 can be adjusted. After the first screw rod 19 and the second screw rod 22 are adjusted, the first screw rod 19 is plugged into the upper end of the mounting plate 18, and the first nut 20 is installed to the bottom end of the first screw rod 19 to limit the mounting plate 18. The connecting piece 23 is fixed to the ceiling by means of nails 25, and the second screw rod 22 is plugged into the bottom of the connecting piece 23, and then limited by the second nut 24. At this time, the box body 1 can be installed and fixed. This mechanism is convenient for installing the equipment and for adjusting the installation height of the equipment.

[0034] Finally, it should be pointed out that the above embodiments are only representative examples of the present utility model. Obviously, the present utility model is not limited to the above embodiments, and there are many variations. Any simple modification, equivalent changes and modifications made to the above embodiments based on the technical essence of the present utility model should be considered to belong to the protection scope of the present utility model.

Claims

1. An internal and external air exchange formaldehyde purification device, characterized in that: include: Box body (1); An exhaust passage (2) is provided inside the box (1), an air inlet passage (3) is provided inside the box (1), the left and right sides of the box (1) are slidably connected with activated carbon boxes (4), the right side of the activated carbon box (4) is fixedly connected with a side plate (5), the upper end of the side plate (5) is penetrated with a hook groove (6), the left and right sides of the box (1) are fixedly connected with limiting plates (7), and the limiting plates (7) are provided with a plurality of groups, the upper ends of the two groups of corresponding limiting plates (7) are slidably connected with limiting bolts (8), the side plate (5) is fixed between the two groups of corresponding limiting plates (7) through the limiting bolts (8), and an exhaust fan (9) is provided on the back of the box (1).

2. The internal and external air exchange formaldehyde purification device according to claim 1, characterized in that: The front of the box (1) is fixedly connected to a first bellows (10), the front end of the first bellows (10) is fixedly connected to an air outlet (11), the air outlet of the exhaust fan (9) is fixedly connected to a second bellows (12), the other end of the second bellows (12) is fixedly connected to a first protective cover (13), the back of the box (1) is fixedly connected to a third bellows (14), the other end of the third bellows (14) is fixedly connected to a second protective cover (15), the front of the box (1) is fixedly connected to a fourth bellows (16), the front end of the fourth bellows (16) is fixedly connected to a return air outlet (17).

3. The internal and external air exchange formaldehyde purification device according to claim 2, characterized in that: The left and right sides of the box body (1) are both fixedly connected with mounting plates (18), and the upper end of the mounting plate (18) is slidably connected with a first screw rod (19).

4. The internal and external air exchange type formaldehyde purification device according to claim 3, characterized in that: The first screw rod (19) has a first nut (20) threadedly connected to the circumferential side surface thereof, and the first screw rod (19) has a threaded barrel (21) threadedly connected to the upper end thereof.

5. The internal and external air exchange formaldehyde purification device according to claim 4, characterized in that: The upper end of the threaded cylinder (21) is threadedly connected to a second screw rod (22), and the peripheral side surface of the second screw rod (22) is slidably connected to a connecting piece (23).

6. The internal and external air exchange formaldehyde purification device according to claim 5, characterized in that: The second screw rod (22) is threadedly connected to a second nut (24) on its circumferential side surface, and the connecting piece (23) is slidably connected to a gun nail (25) on its bottom.

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