Indoor formaldehyde purification treatment device

Abstract

The invention discloses an indoor formaldehyde purification treatment device, relates to the field of formaldehyde treatment, and solves the problem that an existing formaldehyde purification treatment device is difficult to ensure that manganese dioxide fully absorbs formaldehyde. A plurality of filtering balls which are distributed in a central symmetry mode are arranged on the inner side of the mounting disc, material receiving cavities are formed in the inner sides of the filtering balls, a plurality of air holes are formed in the top and the bottom of the mounting disc, and an exhaust grid is mounted at the top of the device shell; the purifying mechanism is used for purifying formaldehyde sucked by the air exhauster, and the purifying mechanism is mounted on the inner side of the mounting disc; through the purification mechanism, manganese dioxide in the two filtering balls adsorbs formaldehyde in air, the multiple filtering balls move synchronously, the manganese dioxide in the filtering balls in the moving process can be turned over, the manganese dioxide in the filtering balls can be fully utilized, and therefore the formaldehyde purification efficiency is improved.

Description

Technical Field

[0001] The invention relates to the field of formaldehyde treatment, in particular to an indoor formaldehyde purification treatment device. Background Art

[0002] Formaldehyde has a strong irritating effect on the mucous membranes of the eyes, nose, and throat. The most common symptoms are eye irritation and headaches. Severe cases can cause allergic dermatitis and asthma. It mainly comes from artificial boards, furniture, decorative materials, etc. The adhesives used in the production of artificial boards contain formaldehyde, which causes the continuous release of free formaldehyde during production and application.

[0003] When treating formaldehyde indoors, manganese dioxide can be used as an effective oxidant or catalyst. Existing formaldehyde purification treatment devices usually use suction to extract indoor air, so that the air containing formaldehyde passes through a filter element equipped with manganese dioxide, and the formaldehyde in the air is treated by manganese dioxide. Since manganese dioxide is mostly installed in the filter element in a stacked manner, the particles in the outer layer will be fully adsorbed and change color first, while the particles in the inner layer will not completely change color. The adsorption rate of formaldehyde by several manganese dioxide particles is not consistent, which will affect the later replacement of manganese dioxide. If the replacement cycle is short, some manganese dioxide particles that have not effectively adsorbed formaldehyde will be wasted. If the replacement cycle is long, the manganese dioxide particles in the outer layer will fail in a short time, resulting in a decrease in the efficiency of the entire purification device in absorbing manganese dioxide. Summary of the invention

[0004] The purpose of the present invention is to provide an indoor formaldehyde purification device to solve the problems raised in the above background technology.

[0005] To achieve the above object, the present invention provides the following technical solutions: A device for purifying indoor formaldehyde comprises: a device shell and an exhaust fan fixedly mounted on the bottom of the device shell, a mounting disc is arranged on the inner side of the device shell, a plurality of filter balls symmetrically distributed in the center are arranged on the inner side of the mounting disc, a receiving chamber for storing manganese dioxide is provided on the inner side of the filter balls, a plurality of air holes symmetrically distributed in the center are provided on the top and bottom of the mounting disc, and the positions of the air holes correspond to the positions of the filter balls, an exhaust grille is fixedly mounted on the top of the device shell; further comprising: a purification mechanism for purifying formaldehyde sucked into the exhaust fan, the purification mechanism being mounted on the inner side of the mounting disc; a feeding mechanism for replenishing manganese dioxide into the receiving chamber, the feeding mechanism being mounted on the inner side of the device shell; a discharging mechanism for discharging used manganese dioxide, the discharging mechanism being mounted on the inner side of the device shell.

[0006] Preferably, the purification mechanism includes a first positioning plate fixedly mounted on the inner side of the device housing, the top of the mounting disc contacts the bottom of the first positioning plate, a second positioning plate is fixedly mounted on the inner side of the device housing, the bottom of the mounting disc contacts the bottom of the second positioning plate, a driving motor is fixedly mounted between the top of the first positioning plate and the top inner wall of the device housing, a rotating rod is fixedly mounted on the inner side of the mounting disc, the rotating rod is connected to the driving motor through a synchronous belt, a circular cavity is opened inside the mounting disc for the filter ball to rotate, and one side of the filter ball A first positioning rod extending to the outside of the mounting disc is fixedly installed. When the first positioning rod rotates, it can drive the filter ball to rotate in the circular cavity with the first positioning rod as a fulcrum. A bevel gear is fixedly installed on the end of the first positioning rod away from the filter ball, and a first rack matching the bevel gear is fixedly installed on the inner side of the device housing. A tee pipe is fixedly installed on the side of the first positioning plate and the second positioning plate away from the mounting disc. One end of the tee pipe on the first positioning plate is connected to the exhaust grille, and one end of the tee pipe on the second positioning plate is connected to the vacuum fan.

[0007] Preferably, the feeding mechanism includes a feeding box fixedly mounted on the top of the first positioning plate, a storage tank is fixedly mounted on the top of the feeding box, a feeding port is opened on the outside of the filter ball, a second rack is fixedly mounted on the inner side of the device shell, the second rack is located below the feeding box, a discharge box is fixedly mounted on the bottom of the second positioning plate, a storage box is fixedly mounted on the bottom of the discharge box, a third rack is fixedly mounted on the inner side of the device shell, and the third rack is located directly above the discharge box.

[0008] The cam is provided with a plurality of spring plates at the bottom end, the spring plates are provided with a spring which is arranged on the inner side of the cam and the cam is provided with a spring which is arranged on the inner side of the cam.

[0009] Preferably, the end of the three-way pipe is a hollow frustum structure.

[0010] Preferably, a second positioning rod is fixedly mounted on a side of the filter ball away from the first positioning rod, and the second positioning rod is rotatably mounted on the inner side of the mounting disc to improve the stability of the rotation of the filter ball.

[0011] Preferably, a positioning ring is fixedly installed on the outer side of the second positioning rod, and two elastic push rods are arranged on the outer side of the positioning ring. A sliding cavity is opened on the inner side of the mounting disc for the elastic push rod to limit the sliding. The elastic push rod is semicircular in structure at one end close to the positioning ring, and a plurality of spherical grooves are opened on the outer side of the positioning ring in a centrally symmetrical manner for the elastic push rod to limit the insertion, and the spherical grooves are one-third spherical structures.

[0012] Preferably, a sealing plug is installed on the top of the storage tank, and a round hole for limiting insertion of the sealing plug is opened on the top of the device housing, and manganese dioxide can be injected into the storage tank by opening the sealing plug.

[0013] Preferably, a sealed sliding door is fixedly installed on the outer side of the device housing, and the sealed sliding door is located on the outer side of the storage box.

[0014] Preferably, a load-bearing plate is fixedly mounted on the inner side of the device housing, and the bottom of the storage box is in contact with the top of the load-bearing plate.

[0015] Compared with the prior art, the present invention has the following beneficial effects: The present invention uses a purification mechanism, and an air extractor sends indoor air into a mounting disc and into two filter balls, so that the manganese dioxide in the two filter balls adsorbs formaldehyde in the air, and synchronously displaces a plurality of filter balls so that the filter balls can flip the manganese dioxide during the movement, thereby making full use of the manganese dioxide in the filter balls and improving the purification efficiency of formaldehyde.

[0016] The present invention uses a feeding mechanism, and during the movement of multiple filter balls, the feeding port on the filter ball is directed downward, so that the used manganese dioxide in the filter ball can be discharged into a discharge box. With the intermittent rotation of the driving motor, the empty filter ball can be moved to the bottom of the feeding box, and the feeding port of the filter ball is directed upward, and the manganese dioxide in the feeding box can enter the receiving cavity of the filter ball, thereby achieving the effect of automatic feeding and realizing continuous purification of formaldehyde.

[0017] The present invention uses a discharging mechanism, which can make multiple push blocks contact with the abutment blocks on the slide bar in turn during the process of the driving motor driving the rotating rod to rotate, so that the slide bar cooperates with the tension spring on the mounting plate to realize the reciprocating movement of the slide bar, and the spiral strip on the slide bar moves along the spiral groove of the sleeve to realize the rotation of the slide bar. The slide bar can fully stir the manganese dioxide remaining in the discharging box through the stirring rod to prevent the discharging box from being blocked, thereby achieving the effect of anti-blocking of discharging. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the structure of the sealed sliding door and the material storage box in the present invention; Figure 3 It is a schematic diagram of the installation disc and the rotating rod structure in the present invention; Figure 4 It is a schematic diagram of the structure of the filter ball and the first positioning rod in the present invention; Figure 5 for Figure 4 Schematic diagram of the enlarged structure of the middle A area; Figure 6 It is a schematic diagram of the structure of the discharge box and the replenishment box in the present invention; Figure 7 It is a schematic diagram of the structure of the three-way pipe and the second positioning plate in the present invention; Figure 8 It is a schematic diagram of the structure of the sliding rod and the stirring rod in the present invention; Fig. 9 It is a schematic diagram of the spiral strip and sleeve structure in the present invention.

[0019] In the figure: 1. device housing; 2. vacuum pump; 3. mounting disc; 4. filter ball; 5. material receiving chamber; 6. exhaust grille; 7. first positioning plate; 8. second positioning plate; 9. driving motor; 10. rotating rod; 11. first positioning rod; 12. bevel gear; 13. first rack; 14. three-way pipe; 15. feeding box; 16. storage tank; 17. second rack; 18. discharge box; 19. storage box; 20. third rack; 21. sliding rod; 22. block; 23. rotating disk; 24. push block; 25. mounting plate; 26. tension spring; 27. sleeve; 28. spiral strip; 29. ​​second positioning rod; 30. positioning ring; 31. elastic block; 32. sealing plug; 33. sealing sliding door; 34. load-bearing plate; 35. stirring rod. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0021] Example 1: Please refer to Figure 1-Figure 9 The indoor formaldehyde purification treatment device shown in the figure includes a device shell 1 and an exhaust fan 2 fixedly installed at the bottom of the device shell 1, the exhaust fan 2 can suck the indoor air into the device shell 1, the inner side of the device shell 1 is provided with a mounting disc 3, the inner side of the mounting disc 3 is provided with a plurality of filter balls 4 distributed symmetrically in the center, the inner side of the filter ball 4 is provided with a receiving cavity 5 for storing manganese dioxide, the top and bottom of the mounting disc 3 are provided with a plurality of air holes distributed symmetrically in the center, and the positions of the air holes correspond to the positions of the filter balls 4, so that the air with formaldehyde enters the filter balls 4 from the air holes at the bottom of the mounting disc 3, the formaldehyde is adsorbed by the manganese dioxide in the receiving cavity 5, and then discharged from the air holes at the top of the mounting disc 3, an exhaust grille 6 is fixedly installed on the top of the device shell 1, and the treated air can be discharged from the exhaust grille 6; it also includes: a purification mechanism, which is used to purify the formaldehyde inhaled by the exhaust fan 2, and the purification mechanism is installed on the inner side of the mounting disc 3.

[0022] The purification mechanism includes a first positioning plate 7 fixedly mounted on the inner side of the device housing 1, the top of the mounting disc 3 contacts the bottom of the first positioning plate 7, a second positioning plate 8 is fixedly mounted on the inner side of the device housing 1, the bottom of the mounting disc 3 contacts the bottom of the second positioning plate 8, a driving motor 9 is fixedly mounted between the top of the first positioning plate 7 and the top inner wall of the device housing 1, a rotating rod 10 is fixedly mounted on the inner side of the mounting disc 3, the rotating rod 10 is docked with the driving motor 9 through a synchronous belt, so that the driving motor 9 can drive the rotating rod 10 to rotate intermittently through the synchronous belt, and the rotating rod 10 can drive the mounting disc 3 to rotate along the first positioning plate 7 and the second positioning plate 8, and a circular cavity for the filter ball 4 to rotate is opened inside the mounting disc 3, and the filter ball 4 A first positioning rod 11 extending to the outside of the mounting disc 3 is fixedly installed on one side. When the first positioning rod 11 rotates, it can drive the filter ball 4 to rotate in the circular cavity with the first positioning rod 11 as a fulcrum. A bevel gear 12 is fixedly installed on the end of the first positioning rod 11 away from the filter ball 4. A first rack 13 matched with the bevel gear 12 is fixedly installed on the inner side of the device housing 1, so that when the mounting disc 3 rotates, it can drive the first positioning rod 11 to make a circular motion with the rotating rod 10 as the center of the circle, and when it contacts the first rack 13, the material receiving cavity 5 in the filter ball 4 is turned over, which is convenient for manganese dioxide to fully adsorb formaldehyde. A second positioning rod 29 is fixedly installed on the side of the filter ball 4 away from the first positioning rod 11. The second positioning rod 29 is rotatably installed on the mounting disc 3. The inner side of the disc 3 improves the stability of the rotation of the filter ball 4. A positioning ring 30 is fixedly installed on the outer side of the second positioning rod 29. Two elastic push rods 31 are arranged on the outer side of the positioning ring 30. A sliding cavity for limiting the sliding of the elastic push rod 31 is provided on the inner side of the mounting disc 3. The end of the elastic push rod 31 close to the positioning ring 30 is in a semicircular structure. A plurality of spherical grooves are provided on the outer side of the positioning ring 30 in a centrally symmetrical manner for limiting the insertion of the elastic push rod 31, and the spherical grooves are one-third spherical structures, so that when the filter ball 4 rotates, it can drive the positioning ring 30 on the second positioning rod 29 to rotate synchronously. The spherical grooves on the positioning ring 30 can push the elastic push rod 31 to move along the sliding cavity of the mounting disc 3, and when the filter ball 4 stops rotating, the elastic push rod 31 can be used to The rebound force causes the elastic push rod 31 to be inserted into the spherical groove of the positioning ring 30 again, so that the positioning ring 30 and the second positioning rod 29 can provide auxiliary positioning for the filter ball 4. The first positioning plate 7 and the second positioning plate 8 are fixedly installed with a three-way pipe 14 on the side away from the mounting disc 3. One end of the three-way pipe 14 on the first positioning plate 7 is connected to the exhaust grille 6, and one end of the three-way pipe 14 on the second positioning plate 8 is connected to the vacuum fan 2. When any two filter balls 4 are aligned with the two ends of the two three-way pipes 14, the air transported by the vacuum fan 2 enters the filter ball 4 through the three-way pipe 14 below, and the purified air can be discharged from the exhaust grille 6 through the three-way pipe 14 above. The end of the three-way pipe 14 is a hollow cone structure, which is convenient for rapid air circulation.

[0023] Example 2: Please refer to Figure 2-Figure 7 , this embodiment further explains the first embodiment, the feeding mechanism shown in the figure includes a feeding box 15 fixedly mounted on the top of the first positioning plate 7, a storage tank 16 is fixedly mounted on the top of the feeding box 15 for storing spare manganese dioxide, a sealing plug 32 is mounted on the top of the storage tank 16, a round hole for limiting and inserting the sealing plug 32 is opened on the top of the device housing 1, and manganese dioxide can be injected into the storage tank 16 by opening the sealing plug 32, a feeding port is opened on the outside of the filter ball 4, a second rack 17 is fixedly mounted on the inside of the device housing 1, and the second rack 17 is located below the feeding box 15. When the filter ball 4 moves to the bottom of the feeding box 15, the second rack 17 can drive the first positioning rod 11 to rotate ninety degrees through the bevel gear 12, so that the feeding port on the filter ball 4 faces upward, and the manganese dioxide in the storage tank 16 can enter the receiving cavity 5 through the feeding box 15 to realize the feeding of the receiving cavity 5. A discharge box 18 is fixedly mounted on the bottom of the second positioning plate 8. A storage box 19 is fixedly installed at the bottom of the discharge box 18, and a third rack 20 is fixedly installed on the inner side of the device housing 1. The third rack 20 is located just above the discharge box 18. When the filter ball 4 moves to just above the discharge box 18, the third rack 20 can drive the first positioning rod 11 to rotate 90 degrees through the bevel gear 12, so that the feeding port on the filter ball 4 faces downward, and the manganese dioxide in the receiving cavity 5 can be discharged into the discharge box 18 and temporarily stored through the storage box 19, which is convenient for the feeding box. 15 To replenish the empty material receiving chamber 5, a sealed sliding door 33 is fixedly installed on the outer side of the device shell 1, and the sealed sliding door 33 is located on the outer side of the storage box 19. The manganese dioxide in the storage box 19 can be taken out by pulling open the sealed sliding door 33. A load-bearing plate 34 is fixedly installed on the inner side of the device shell 1, and the bottom of the storage box 19 is in contact with the top of the load-bearing plate 34 to provide support for the bottom of the storage box 19. The second rack 17 and the third rack 20 can both rotate the bevel gear 12 one hundred and eighty degrees.

[0024] Example 3: Please refer to Figure 6-Figure 9, this embodiment further explains other embodiments, the discharge mechanism shown in the figure includes a slide bar 21 arranged on the inner side of the discharge box 18, and a stop block 22 is fixedly installed at one end of the slide bar 21 close to the rotating rod 10, and a slide groove for limiting the sliding of the slide bar 21 and the stop block 22 is opened on the inner side of the discharge box 18, a rotating disk 23 is fixedly installed at one end of the rotating rod 10 close to the stop block 22, and a plurality of push blocks 24 symmetrically distributed in the center are fixedly installed on the outer side of the rotating disk 23, the push block 24 is an isosceles trapezoidal structure, and the end of the stop block 22 close to the push block 24 is a hemispherical structure, and a mounting disk 25 is rotatably installed at one end of the slide bar 21 away from the stop block 22, and a tension spring 26 is fixedly installed between the mounting disk 25 and the outer side of the discharge box 18, so that when the rotating disk 23 rotates, the stop block 22 can be pushed to move by the push block 24, and the stop block 22 can drive the slide bar 21 to move synchronously, The slide bar 21 stretches the tension spring 26 through the mounting plate 25, and the resilience of the tension spring 26 is used to realize the reciprocating movement of the slide bar 21. A sleeve 27 is fixedly installed at one end of the discharge box 18 close to the mounting plate 25. The slide bar 21 is slidably installed on the inner side of the sleeve 27. A plurality of spiral bars 28 symmetrically distributed in the center are fixedly installed on the outer side of the slide bar 21. A spiral groove for limiting the sliding of the spiral bars 28 is provided on the inner side of the sleeve 27, so that the slide bar 21 can drive the spiral bars 28 to move along the spiral groove of the sleeve 27 during the movement, thereby realizing the rotation of the slide bar 21. A plurality of stirring rods 35 distributed in an alternating manner are fixedly installed on the outer side of the slide bar 21, so that the slide bar 21 can drive the stirring rods 35 to reciprocate and rotate, thereby realizing the stirring of the material in the discharge box 18 and preventing the manganese dioxide from being blocked in the discharge box 18.

[0025] Working principle: First, the staff places the device as a whole in the room and starts the vacuum pump 2, so that the vacuum pump 2 sends the indoor air into the three-way pipe 14 of the second positioning plate 8, and the other two ends of the three-way pipe 14 inject air into the corresponding two filter balls 4, so that the manganese dioxide in the filter balls 4 adsorbs the formaldehyde in the air, and the purified air can enter the three-way pipe 14 on the first positioning plate 7 and be discharged from the exhaust grille 6 to the outside, so as to purify the formaldehyde. Then, the staff starts the drive motor 9, so that the drive motor 9 drives the rotating rod 10 to rotate through the synchronous belt, and the rotating rod 10 drives the installation disc 3 to rotate, so that the installation disc 3 drives multiple The filter balls 4 make circular motions with the rotating rod 10 as the center, so as to realize the position replacement of the plurality of filter balls 4. During the movement of the filter balls 4, the first positioning rod 11 is driven to move, so that the bevel gear 12 on the first positioning rod 11 contacts the first rack 13, so that the first rack 13 drives the bevel gear 12 to rotate 180 degrees. The bevel gear 12 can drive the filter balls 4 to rotate synchronously through the first positioning rod 11, and the manganese dioxide in the filter balls 4 is synchronously turned over, so that the manganese dioxide in the filter balls 4 can fully purify the formaldehyde. Therefore, with the intermittent rotation of the driving motor 9, the filter balls 4 between the two ends of the two three-way pipes 14 can be replaced in sequence. When the bevel gear 12 contacts the third rack 20, the third rack 20 can drive the bevel gear 12 to rotate, and when the bevel gear 12 moves to the middle position of the third rack 20, the bevel gear 12 can rotate downward by ninety degrees, so that the feeding port of the filter ball 4 faces downward, and the manganese dioxide in the filter ball 4 can fall into the discharge box 18, so that the manganese dioxide falls into the storage box 19, and the manganese dioxide is discharged. After the filter ball 4 moves again, the third rack 20 can make the bevel gear 12 continue to rotate ninety degrees. The feeding port of the filter ball 4 can be in a horizontal state, and with the operation of the drive motor 9, the bevel gear 12 is in contact with the second rack 17. When the bevel gear 12 moves to the middle position of the second rack 17, the bevel gear 12 rotates upward by ninety degrees, so that the feeding port of the filter ball 4 faces upward and is aligned with the bottom of the feeding box 15, and the manganese dioxide in the storage tank 16 can enter the filter ball 4 to achieve the feeding of manganese dioxide. Therefore, with the intermittent rotation of the drive motor 9, the manganese dioxide in the filter ball 4 can be turned over, discharged and fed, thereby achieving the effect of continuously treating formaldehyde and improving the purification efficiency of indoor formaldehyde.

[0026] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0027] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An indoor formaldehyde purification device, characterized in that: include: A device housing (1) and an exhaust fan (2), wherein a mounting disc (3) is arranged on the inner side of the device housing (1), a plurality of filter balls (4) are arranged on the inner side of the mounting disc (3) and are distributed symmetrically with respect to the center, a material receiving cavity (5) is provided on the inner side of the filter balls (4), a plurality of air holes are provided on the top and bottom of the mounting disc (3), and an exhaust grille (6) is installed on the top of the device housing (1); Also includes: A purification mechanism, used for purifying the formaldehyde sucked into the air pump (2), the purification mechanism being mounted on the inner side of the mounting disc (3); A feeding mechanism, used for replenishing manganese dioxide into the receiving chamber (5), the feeding mechanism being installed on the inner side of the device housing (1); A discharge mechanism is used to discharge the used manganese dioxide, and the discharge mechanism is installed on the inner side of the device housing (1).

2. An indoor formaldehyde purification device according to claim 1, characterized in that: The purification mechanism comprises a first positioning plate (7) fixedly mounted on the inner side of the device housing (1); the top of the mounting disc (3) contacts the bottom of the first positioning plate (7); a second positioning plate (8) is fixedly mounted on the inner side of the device housing (1); the bottom of the mounting disc (3) contacts the bottom of the second positioning plate (8); a driving motor (9) is fixedly mounted on the top of the first positioning plate (7); a rotating rod (10) is fixedly mounted on the inner side of the mounting disc (3); the rotating rod (10) is connected to the driving motor (9) via a synchronous belt; one side of the filter ball (4) A first positioning rod (11) is fixedly installed, and a bevel gear (12) is fixedly installed on one end of the first positioning rod (11). A first rack (13) that matches the bevel gear (12) is fixedly installed on the inner side of the device housing (1). A three-way pipe (14) is fixedly installed on the side of the first positioning plate (7) and the second positioning plate (8) away from the mounting disc (3). One end of the three-way pipe (14) on the first positioning plate (7) is connected to the exhaust grille (6), and one end of the three-way pipe (14) on the second positioning plate (8) is connected to the air extractor (2).

3. An indoor formaldehyde purification device according to claim 2, characterized in that: The feeding mechanism comprises a feeding box (15) mounted on the top of the first positioning plate (7), a material storage tank (16) being mounted on the top of the feeding box (15), a feeding port being provided on the outer side of the filter ball (4), a second rack (17) being fixedly mounted on the inner side of the device housing (1), the second rack (17) being located below the feeding box (15), a discharge box (18) being fixedly mounted on the bottom of the second positioning plate (8), a material storage box (19) being fixedly mounted on the bottom of the discharge box (18), and a third rack (20) being fixedly mounted on the inner side of the device housing (1), the third rack (20) being located directly above the discharge box (18).

4. An indoor formaldehyde purification device according to claim 3, characterized in that: The discharge mechanism comprises a slide bar (21) arranged on the inner side of the discharge box (18), a stop block (22) being fixedly mounted on one end of the slide bar (21), a slide groove for limiting the sliding of the slide bar (21) and the stop block (22) being provided on the inner side of the discharge box (18), a turntable (23) being fixedly mounted on one end of the rotating rod (10), a plurality of push blocks (24) being fixedly mounted on the outer side of the turntable (23), and a mounting plate (25) being rotatably mounted on the other end of the slide bar (21). A tension spring (26) is fixedly installed between the mounting plate (25) and the outer side of the discharge box (18); a sleeve (27) is fixedly installed at one end of the discharge box (18); the slide bar (21) is slidably installed on the inner side of the sleeve (27); a plurality of spiral strips (28) are fixedly installed on the outer side of the slide bar (21); a spiral groove is provided on the inner side of the sleeve (27) for limiting the sliding of the spiral strips (28); and a plurality of stirring rods (35) are fixedly installed on the outer side of the slide bar (21).

5. An indoor formaldehyde purification device according to claim 2, characterized in that: The end of the three-way pipe (14) is a hollow truncated cone structure.

6. An indoor formaldehyde purification device according to claim 2, characterized in that: A second positioning rod (29) is fixedly mounted on one side of the filter ball (4), and the second positioning rod (29) is rotatably mounted on the inner side of the mounting disc (3).

7. An indoor formaldehyde purification device according to claim 6, characterized in that: A positioning ring (30) is fixedly mounted on the outer side of the second positioning rod (29), and two elastic push rods (31) are arranged on the outer side of the positioning ring (30). A sliding cavity for limiting sliding of the elastic push rod (31) is provided on the inner side of the mounting disc (3), and one end of the elastic push rod (31) is in a semicircular structure. A plurality of spherical grooves for limiting insertion of the elastic push rod (31) are arranged on the outer side of the positioning ring (30) in a centrally symmetrical manner, and the spherical grooves are one-third spherical structures.

8. An indoor formaldehyde purification device according to claim 3, characterized in that: A sealing plug (32) is installed on the top of the material storage tank (16), and a circular hole for limiting insertion of the sealing plug (32) is provided on the top of the device housing (1).

9. An indoor formaldehyde purification device according to claim 3, characterized in that: A sealed sliding door (33) is fixedly mounted on the outer side of the device housing (1), and the sealed sliding door (33) is located on the outer side of the material storage box (19).

10. An indoor formaldehyde purification device according to claim 3, characterized in that: A load-bearing plate (34) is fixedly mounted on the inner side of the device housing (1), and the bottom of the material storage box (19) is in contact with the top of the load-bearing plate (34).

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