A purification device for indoor formaldehyde pollution

Abstract

The application discloses a purification device for indoor formaldehyde pollution, and relates to the technical field of formaldehyde pollution purification, which comprises a filtering mechanism and further comprises: a gas temporary storage mechanism installed on the filtering mechanism; the application is provided with a switching processing mechanism, which is matched with a gas pumping mechanism to drive multiple catalytic cylinders to rotate and switch, rapidly discharges the purified gas, rapidly pumps the filtered air, realizes continuous purification, makes the gas and the refrigerant coating fully decompose formaldehyde, and the gas pumping mechanism reduces the flow of the gas flow by using the piston pumping mode, avoids the collision between the internal small particles and the refrigerant coating when the gas flows, causes the abrasion of the coating, and uses the refrigerant coating protection mechanism to expose the refrigerant coating under the condition that the air is stable, fully contacts with the air, guarantees the formaldehyde decomposition and purification efficiency, further avoids the abrasion of the coating, guarantees the service life of the coating, and prolongs the operation time of the equipment.

Description

Technical Field

[0001] The present invention relates to the technical field of ophthalmological treatment, in particular to a purification device for indoor formaldehyde pollution. 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, which is irritating to the eyes and nose. Formaldehyde is a toxic gas that currently poses a serious threat to human health. It is more common in furniture and decoration materials that do not meet quality standards. If patients are exposed to an environment with high formaldehyde concentrations for a long time, they may experience dizziness, headaches, tearing, nausea and vomiting, coughing, chest tightness, leukemia, etc., and severe cases may lead to death. Therefore, formaldehyde needs to be purified indoors. The existing technology for formaldehyde purification is through refrigerant treatment, which uses the contact between air and the refrigerant coating on the filter to purify and decompose the formaldehyde in the air.

[0003] However, because the pore size of the filter is small, the air flows at a high velocity when passing through the holes, which will cause physical wear on the refrigerant coating. In addition, the particles in the air will impact the filter, accelerating the wear of the refrigerant coating, thereby affecting the service life of the refrigerant coating. If there is a lot of formaldehyde indoors in the factory, the cost of replacing the refrigerant coating of the large formaldehyde purification equipment will be higher. Summary of the Invention

[0004] The present invention provides a purification device for indoor formaldehyde pollution to solve the above-mentioned deficiencies in the prior art.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A purification device for indoor formaldehyde pollution, comprising a filtering mechanism and further comprising:

[0007] A gas temporary storage mechanism, which is installed on the filtering mechanism;

[0008] a switching processing mechanism installed in the filtering mechanism;

[0009] A gas extraction mechanism, which is mounted on the switching processing mechanism;

[0010] A refrigerant coating protection mechanism is installed on the gas extraction mechanism.

[0011] The filtering mechanism includes a base, a first filter is fixed on the top of the base, a second filter is sleeved inside the first filter, a third filter is sleeved inside the second filter, the second and third filters are fixed on the top of the base, a partition is fixed on the top of the second and third filters, and an exhauster is installed at the center of the partition;

[0012] The top of the filter screen one is fixed with a processing cylinder, and the top of the processing cylinder is provided with an exhaust port.

[0013] The gas temporary storage mechanism comprises a gas storage opening formed in the partition plate, the bottom of the gas storage opening is fixed with an annular gas storage tank, the inside of the annular gas storage tank is sleeved with a piston ring, the top of the piston ring is fixed with a plurality of springs one, the top end of the spring one is fixed on the bottom of the partition plate, the bottom of the annular gas storage tank is communicated with a pipeline, and the pipeline penetrates through the inside of the base.

[0014] The switching processing mechanism comprises a fixed ring fixed on the inner wall of the processing cylinder, the inner wall of the fixed ring is rotatably connected with a circular plate, the bottom of the circular plate is fixed with a mounting ring, the outer wall of the mounting ring is mounted with a one-way gear one, one side of the one-way gear one is engaged with a gear one, the top of the partition plate is fixed with a motor, and the output end of the motor is fixedly connected with the gear one.

[0015] The gas exhaust mechanism comprises a plurality of catalytic cylinders fixed in the inside of the circular plate, the top of the catalytic cylinder is rotatably connected with a reciprocating screw one, the top end of the reciprocating screw one is fixed with a gear three, one side of the gear three is engaged with a gear two, the inside of the gear two is fixed with a rotating shaft one, the rotating shaft one is rotatably connected in the inside of the fixed ring, and the bottom end of the rotating shaft one is rotatably connected with the partition plate.

[0016] The bottom end of the rotating shaft one is fixed with a one-way gear two, and the one-way gear two is engaged with the gear one.

[0017] The outside of the reciprocating screw one is threadedly sleeved with a piston plate, the inside of the piston plate is sleeved with a guide rod, and the guide rod is fixed on the top of the catalytic cylinder.

[0018] A plurality of groups of springs three are fixed on the bottom, the top of the catalytic cylinder and the piston plate, the top end of each group of the springs three is fixed with a sealing plate, a gas pipe is arranged between each group of the springs three, the top of the gas pipe is blocked by the sealing plate, a plurality of sleeve pipes are fixed on the top of the catalytic cylinder, and a plurality of groups of the sleeve pipes are sleeved outside a plurality of groups of the springs three on the top of the catalytic cylinder.

[0019] A cross groove is formed in the piston plate.

[0020] The refrigerant coating protection mechanism comprises a rotating shaft two rotatably connected to the bottom of the catalytic cylinder, and the bottom end of the rotating shaft two is fixed with a gear four.

[0021] The top of the partition plate is fixed with a support frame, the top of the support frame is fixed with a defective internal gear ring, and the gear four is matched with the defective internal gear ring.

[0022] The top end of the second rotating shaft is fixedly connected with a cross plate, a coating is arranged on the cross plate, a plurality of fluid channels are formed in the cross plate, a plurality of C-shaped sheaths are arranged outside the cross plate, a moving plate is fixedly connected to the top of the C-shaped sheaths, a second reciprocating screw is rotatably connected to the inside of the moving plate, a fixed plate is rotatably connected to one end of the second reciprocating screw, the fixed plate is fixed to the top of the cross plate, a bevel gear one is fixed to the end of the second reciprocating screw, a bevel gear two is arranged on the top of the bevel gear one, a third rotating shaft is fixed to the top of the bevel gear two, a gear five is fixed to the top of the third rotating shaft, and the third rotating shaft is rotatably connected to the top of the catalytic cylinder.

[0023] The top inner wall of the processing cylinder is fixedly connected with a vertical plate, the bottom of the vertical plate is fixedly connected with an arc-shaped rack, the gear five is matched with the arc-shaped rack, and the cross plate and the C-shaped sheath are arranged in the cross groove when the piston plate moves upwards.

[0024] The top of the processing cylinder is fixedly connected with a controller, and the controller is electrically connected with the motor.

[0025] Compared with the prior art, the present application has the following advantages:

[0026] 1. The gas temporary storage mechanism is installed to continuously filter and collect the external gas during the gas treatment process, and the filtered gas is quickly sucked in when needed, thereby increasing the formaldehyde treatment time, ensuring the thoroughness of formaldehyde purification, and ensuring the efficiency and speed of gas treatment.

[0027] 2. The switching treatment mechanism is installed to drive the rotation and switching of the plurality of catalytic cylinders in cooperation with the gas suction and exhaust mechanism, the filtered air is quickly sucked in while the purified gas is quickly discharged, the continuous purification is realized, the gas flow is reduced by the piston suction method, the internal small particles are prevented from colliding with the coolant coating to cause the wear of the coating, the coolant coating protection mechanism is used to expose the coolant coating under the condition that the air is stable and fully contact with the air, the decomposition and purification efficiency of formaldehyde is ensured, the wear of the coating is further avoided, the service life of the coating is ensured, and the operation time of the equipment is improved. BRIEF DESCRIPTION OF DRAWINGS

[0028] Figure 1 A structural schematic view of the indoor formaldehyde pollution purification device is provided.

[0029] Figure 2 A first perspective structural schematic view of the indoor formaldehyde pollution purification device is provided.

[0030] Figure 3It is an internal profile second view angle structure schematic diagram of the purification device for indoor formaldehyde pollution.

[0031] Figure 4 It is a switching processing mechanism structure schematic diagram of the purification device for indoor formaldehyde pollution.

[0032] Figure 5 It is a gas exhaust mechanism structure schematic diagram of the purification device for indoor formaldehyde pollution.

[0033] Figure 6 It is Figure 5 It is an enlarged structure schematic diagram of the inside A.

[0034] Figure 7 It is a refrigerant coating protection mechanism structure schematic diagram of the purification device for indoor formaldehyde pollution.

[0035] In the figure: 1, filtering mechanism; 11, base; 12, filter screen one; 13, filter screen two; 14, filter screen three; 15, partition; 16, air extractor; 17, processing cylinder; 18, exhaust port; 2, gas temporary storage mechanism; 21, annular gas storage tank; 22, spring one; 23, piston ring; 24, gas storage port; 25, pipeline; 3, switching processing mechanism; 31, fixed ring; 32, round plate; 33, one-way gear one; 34, motor; 35, gear one; 36, mounting ring; 4, gas exhaust mechanism; 41, catalytic cylinder; 42, reciprocating screw one; 43, gear three; 44, guide rod; 45, piston plate; 46, air pipe; 47, spring three; 48, sealing plate; 49, sleeve; 410, rotating shaft one; 411, one-way gear two; 412, gear two; 5, refrigerant coating protection mechanism; 51, rotating shaft two; 52, gear four; 53, cross plate; 54, incomplete internal tooth ring; 55, gear five; 56, bevel gear two; 57, fixed plate; 58, reciprocating screw two; 59, bevel gear one; 510, moving plate; 511, C-shaped sheath; 512, fluid passage; 513, rotating shaft three; 514, support frame; 515, vertical plate; 516, arc-shaped rack. DETAILED DESCRIPTION

[0036] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all the embodiments.

[0037] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0038] In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the said features. In the description of the present invention, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined. In addition, the terms "installed", "connected" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be a communication between the two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0039] Example: Refer to Figure 1-Figure 7 : A purification device for indoor formaldehyde pollution, comprising a filtering mechanism 1, and further comprising:

[0040] A gas temporary storage mechanism 2, which is installed on the filtering mechanism 1;

[0041] A switching processing mechanism 3 is installed in the filtering mechanism 1;

[0042] A gas extraction mechanism 4, which is installed on the switching processing mechanism 3;

[0043] The refrigerant coating protection mechanism 5 is installed on the gas exhaust mechanism 4 .

[0044] The filter mechanism 1 includes a base 11, a filter screen 12 is fixed to the top of the base 11, a filter screen 13 is provided inside the filter screen 12, a filter screen 3 14 is provided inside the filter screen 13, the filter screen 2 13 and the filter screen 3 14 are fixed to the top of the base 11, a partition 15 is fixed on the top of the filter screen 2 13 and the filter screen 3 14, and an exhauster 16 is installed at the center of the partition 15;

[0045] A treatment cylinder 17 is fixed on the top of the filter screen 12 , and an exhaust port 18 is installed on the top of the treatment cylinder 17 .

[0046] The gas temporary storage mechanism 2 includes a gas storage port 24 opened on the partition 15, and an annular gas storage box 21 is fixed to the bottom of the gas storage port 24. A piston ring 23 is provided inside the annular gas storage box 21, and a plurality of springs 22 are fixed on the top of the piston ring 23. The top of the spring 22 is fixed to the bottom of the partition 15. The bottom of the annular gas storage box 21 is connected to a pipe 25, and the pipe 25 passes through and is fixed to the inside of the base 11.

[0047] The switching processing mechanism 3 includes a fixed ring 31 fixed to the inner wall of the processing cylinder 17, the inner wall of the fixed ring 31 is rotatably connected to a circular plate 32, a mounting ring 36 is fixed to the bottom of the circular plate 32, a one-way gear 1 33 is installed on the outer wall of the mounting ring 36, a gear 1 35 is engaged with one side of the one-way gear 1 33, a motor 34 is fixed to the top of the partition 15, and the output end of the motor 34 is fixedly connected to the gear 1 35.

[0048] The gas extraction mechanism 4 includes a plurality of catalytic cartridges 41 fixed inside the circular plate 32. The top of the catalytic cartridges 41 is rotatably connected to a reciprocating screw 1 42. A gear 3 43 is fixed to the top of the reciprocating screw 1 42. A gear 2 412 is meshed with one side of the gear 3 43. A rotating shaft 1 410 is fixed inside the gear 2 412. The rotating shaft 1 410 is rotatably connected to the interior of the fixed ring 31. The bottom end of the rotating shaft 1 410 is rotatably connected to the partition 15.

[0049] A one-way gear 2 411 is fixed to the bottom end of the rotating shaft 1 410 , and the one-way gear 2 411 is meshed with the gear 1 35 ;

[0050] The outer thread of the reciprocating screw 42 is provided with a piston plate 45, and the inner part of the piston plate 45 is provided with a guide rod 44, which is fixed to the top of the catalyst cylinder 41;

[0051] Multiple sets of springs 47 are fixed to the bottom, top, and piston plate 45 of the catalytic cylinder 41. A sealing plate 48 is fixed to the top of each set of springs 47. An air pipe 46 is provided between each set of springs 47. The sealing plate 48 blocks the top of the air pipe 46. Multiple sleeves 49 are fixed to the top of the catalytic cylinder 41. The sleeves 49 are sleeved onto the outside of the multiple sets of springs 47 located at the top of the catalytic cylinder 41.

[0052] A cross groove is formed through the piston plate 45 .

[0053] The refrigerant coating protection mechanism 5 includes a second rotating shaft 51 rotatably connected to the bottom of the catalytic cylinder 41, and a fourth gear 52 is fixed to the bottom end of the second rotating shaft 51;

[0054] A support frame 514 is fixed to the top of the partition 15, and a broken inner gear ring 54 is fixed to the top of the support frame 514. The gear 4 52 cooperates with the broken inner gear ring 54.

[0055] A cross plate 53 is fixed to the top of the second rotating shaft 51. The cross plate 53 is provided with a coating. A plurality of fluid channels 512 are opened on the cross plate 53. A plurality of C-shaped sheaths 511 are provided on the outside of the cross plate 53. A movable plate 510 is fixed to the top of the C-shaped sheath 511. A reciprocating screw 2 58 is rotatably connected to the inside of the movable plate 510. One end of the reciprocating screw 2 58 is rotatably connected to a fixed plate 57. The fixed plate 57 is fixed to the top of the cross plate 53. A bevel gear 1 59 is fixed to the adjacent ends of the plurality of reciprocating screws 2 58. The tops of the plurality of bevel gears 1 59 are meshed with bevel gear 2 56. A rotating shaft 3 513 is fixed to the top of the bevel gear 2 56. A gear 5 55 is fixed to the top of the rotating shaft 3 513. The rotating shaft 3 513 penetrates and is rotatably connected to the top of the catalytic cylinder 41.

[0056] A vertical plate 515 is fixed to the top inner wall of the processing cylinder 17, and an arc-shaped rack 516 is fixed to the bottom of the vertical plate 515. The gear 55 cooperates with the arc-shaped rack 516. When the piston plate 45 moves upward, the cross plate 53 and the C-shaped sheath 511 are sleeved inside the cross groove.

[0057] A controller is fixed on the top of the processing cylinder 17 , and the controller is electrically connected to the motor 34 .

[0058] Working principle:

[0059] The exhaust fan 16 is started to generate suction, which is transmitted to the outside through the filter screen 3 14, the filter screen 2 13 and the filter screen 1 12. The external air is pulled by the suction force to pass through the filter screen 1 12, the filter screen 2 13 and the filter screen 3 14, and the filtered air enters between the partition 15 and the circular plate 32. If the gas cannot enter from the air pipe 46 at the bottom of the catalytic cylinder 41, then as the gas increases, it will enter the interior of the annular air storage box 21 through the gas storage port 24. The gas pushes the piston ring 23 downward from the top and stretches the spring 1 22. The gas temporary storage mechanism 2 temporarily stores the filtered gas. When the catalytic cylinder 41 needs air, it can quickly obtain a sufficient amount of air within a certain period of time, thereby solving the problem of slow air supply speed of the exhaust fan and ensuring the formaldehyde purification efficiency.

[0060] Start the motor 34 in reverse direction. The reverse direction of the motor 34 satisfies the direction in which the one-way gear 2 411 drives the rotating shaft 1 410 to rotate. The rotating shaft 1 410 drives the gear 2 412 to rotate. The gear 2 412 drives the meshed gear 3 43 and the reciprocating screw 1 42 to rotate, so that the piston plate 45 moves upward. Because the tensile strength required by the spring 3 47 is higher than the tensile strength of the spring 1 22, the gas in the gas temporary storage mechanism 2 is difficult to push the sealing plate 48 to stretch the spring 3 47. However, when the piston plate 45 moves upward, it will push the processed gas above to move upward. After being pushed, the gas will push the sealing plate 48 above the catalytic cylinder 41 to stretch the spring The third 47 opens the air pipe 46 and ejects the gas upward from the sleeve 49. The ejected gas is discharged from the exhaust port 18. When the piston plate 45 moves upward, a negative pressure is generated under the piston plate 45. The negative pressure causes the gas in the gas temporary storage mechanism 2 to enter the bottom of the piston plate 45 from the gap between the sealing plate 48 under the catalytic cylinder 41 and the air pipe 46 to be processed. The piston plate 45 moves the top thread tail of the reciprocating screw 42 and then moves downward. When moving downward, the gas under the piston plate 45 will pass through the sealing plate 48 installed on the piston plate 45, causing the piston plate 45 to move downward to the bottom thread tail of the reciprocating screw 42. The gas to be processed is located above the piston plate 45.

[0061] The starting motor 34 drives gear 1 35 to rotate forward. The forward rotation of gear 1 35 satisfies the direction of rotation of the one-way gear 1 33 driving the mounting ring 36. The rotation of the mounting ring 36 drives the circular plate 32 and the structure mounted on the circular plate 32 to rotate. When the multiple catalytic cartridges 41 follow the rotation, gear 3 43 separates from gear 2 412. Because gear 5 55 is meshed with the arc-shaped rack 516, gear 5 55 drives the rotating shaft 3 513 and bevel gear 2 56 to rotate when following the rotation. Bevel gear 2 56 simultaneously drives multiple bevel gears 1 59 to rotate, causing the reciprocating screw 2 58 to rotate, causing the moving plate 510 to drive the C-shaped sleeve 511 to move and expose the cross plate 53. Then gear 5 55 is disengaged from the arc-shaped rack 516. When gear 5 55 is meshed with the arc-shaped rack 516, gear 4 52 is not meshed with the incomplete inner gear ring 54. When gear 5 55 is not meshed with the arc-shaped rack 516, gear 4 52 is not meshed with the incomplete inner gear ring 54. The gear 51 is engaged, and then drives the second shaft 51 to rotate. The second shaft 51 drives the cross plate 53 and the C-type sleeve 511 to rotate. The cross plate 53 drives the reciprocating screw 2 58, the bevel gear 1 59, the bevel gear 2 56, the rotating shaft 3 513 and the gear 5 55 to rotate synchronously. The refrigerant coating on the slowly rotating cross plate 53 is in continuous contact with the air in the catalytic cylinder 41 to decompose and purify the formaldehyde. After the gear 4 52 is disengaged from the incomplete inner gear ring 54, the gear 55 is re-engaged with the arc-shaped rack 516. Then the gear 4 52 drives the rotating shaft 3 513 and the bevel gear 2 56 to rotate. The bevel gear 2 56 simultaneously drives multiple bevel gears 1 59 to rotate, causing the reciprocating screw 2 58 to rotate, causing the movable plate 510 to drive the C-type sleeve 511 to move and cover the cross plate 53. After the C-type sleeve 511 is reset, the gear 3 43 is re-engaged with the gear 2 412. Then, according to the above steps, the purified air is discharged and the filtered air is drawn in for continuous purification.

[0062] The switching processing mechanism 3 is matched with the gas extraction mechanism 4 to drive multiple catalytic cylinders 41 to rotate and switch, and discharge the purified gas, while drawing in the filtered air to achieve continuous purification. At the same time, the gas extraction mechanism 4 uses piston extraction to reduce the fluidity of the airflow, to avoid the wear of the coating caused by the collision of small particles inside the gas and the refrigerant coating when the gas flows, and to use the refrigerant coating protection mechanism to expose the refrigerant coating when the air is stable, and fully and flexibly contact with the air, to ensure the formaldehyde decomposition and purification efficiency, while further avoiding the loss of the coating, ensuring the service life of the coating, and improving the operating time of the equipment.

[0063] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A purification device for indoor formaldehyde pollution, comprising a filtering mechanism (1), characterized in that: Also includes: A gas temporary storage mechanism (2) mounted on the filter mechanism (1); A switching processing mechanism (3) is installed in the filtering mechanism (1); A gas extraction mechanism (4) mounted on the switching processing mechanism (3); A refrigerant coating protection mechanism (5) mounted on the gas extraction mechanism (4); The filtering mechanism (1) comprises a base (11), a filter screen 1 (12) is fixed on the top of the base (11), a filter screen 2 (13) is provided inside the filter screen 1 (12), a filter screen 3 (14) is provided inside the filter screen 2 (13), the filter screen 2 (13) and the filter screen 3 (14) are fixed on the top of the base (11), a partition (15) is fixed on the top of the filter screen 2 (13) and the filter screen 3 (14), and an exhauster (16) is installed at the center of the partition (15); A treatment cylinder (17) is fixed on the top of the filter screen 1 (12), and an exhaust port (18) is installed on the top of the treatment cylinder (17); The switching processing mechanism (3) includes a fixing ring (31) fixed to the inner wall of the processing cylinder (17), the inner wall of the fixing ring (31) is rotatably connected to a circular plate (32), a mounting ring (36) is fixed to the bottom of the circular plate (32), a one-way gear 1 (33) is mounted on the outer wall of the mounting ring (36), a gear 1 (35) is meshed with one side of the one-way gear 1 (33), a motor (34) is fixed to the top of the partition (15), and an output end of the motor (34) is fixedly connected to the gear 1 (35); The gas extraction mechanism (4) includes a plurality of catalytic cylinders (41) fixed inside the circular plate (32); The refrigerant coating protection mechanism (5) includes a second rotating shaft (51) rotatably connected to the bottom of the catalytic cylinder (41), and a fourth gear (52) is fixed to the bottom end of the second rotating shaft (51); A support frame (514) is fixed on the top of the partition (15), a broken inner gear ring (54) is fixed on the top of the support frame (514), and the gear four (52) cooperates with the broken inner gear ring (54); A cross plate (53) is fixed on the top of the second rotating shaft (51), and a coating is provided on the cross plate (53). A plurality of fluid channels (512) are provided on the cross plate (53). A plurality of C-shaped sleeves (511) are provided on the outside of the cross plate (53). A moving plate (510) is fixed on the top of the C-shaped sleeve (511). The inside of the moving plate (510) is rotatably connected to the second reciprocating screw (58), and one end of the second reciprocating screw (58) is rotatably connected to a fixed screw. A fixed plate (57), the fixed plate (57) is fixed to the top of the cross plate (53), a plurality of reciprocating screw rods (58) are fixed to a bevel gear (59) at one end thereof, a plurality of bevel gears (59) are meshed with bevel gears (56) at the top, a rotating shaft (513) is fixed to the top of the bevel gear (56), a gear (55) is fixed to the top of the rotating shaft (513), and the rotating shaft (513) is connected to the top of the catalytic cylinder (41) through rotation; A vertical plate (515) is fixed to the top inner wall of the treatment cylinder (17), an arc-shaped rack (516) is fixed to the bottom of the vertical plate (515), and the gear five (55) cooperates with the arc-shaped rack (516).

2. A purification device for indoor formaldehyde pollution according to claim 1, characterized in that: The gas temporary storage mechanism (2) comprises a gas storage port (24) provided on a partition (15), an annular gas storage box (21) being fixed to the bottom of the gas storage port (24), a piston ring (23) being sleeved inside the annular gas storage box (21), a plurality of springs (22) being fixed on the top of the piston ring (23), the top ends of the springs (22) being fixed to the bottom of the partition (15), a pipe (25) being connected to the bottom of the annular gas storage box (21), and the pipe (25) being passed through and fixed to the inside of the base (11).

3. A purification device for indoor formaldehyde pollution according to claim 2, characterized in that: The top of the catalytic cylinder (41) is rotatably connected to a reciprocating screw rod 1 (42), a gear rod 3 (43) is fixed to the top of the reciprocating screw rod 1 (42), a gear rod 2 (412) is meshed with a gear rod 3 (412) on one side of the gear rod 3 (43), a rotating shaft 1 (410) is fixed inside the gear rod 2 (412), the rotating shaft 1 (410) is rotatably connected to the inside of the fixing ring (31), and the bottom end of the rotating shaft 1 (410) is rotatably connected to the partition plate (15); A one-way gear 2 (411) is fixed to the bottom end of the rotating shaft 1 (410), and the one-way gear 2 (411) is meshed with the gear 1 (35); The outer thread of the reciprocating screw rod (42) is provided with a piston plate (45), the inner portion of the piston plate (45) is provided with a guide rod (44), and the guide rod (44) is fixed to the top of the catalytic cylinder (41); A plurality of groups of spring three (47) are fixed on the bottom, top and piston plate (45) of the catalytic cylinder (41), a sealing plate (48) is fixed on the top of each group of spring three (47), an air pipe (46) is provided between each group of spring three (47), the sealing plate (48) blocks the top of the air pipe (46), a plurality of sleeves (49) are fixed on the top of the catalytic cylinder (41), and the plurality of sleeves (49) are sleeved on the outside of the plurality of groups of spring three (47) located on the top of the catalytic cylinder (41); A cross groove is formed through the piston plate (45).

4. A purification device for indoor formaldehyde pollution according to claim 3, characterized in that: A controller is fixed on the top of the processing cylinder (17), and the controller is electrically connected to the motor (34).

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