A manhole cover with an odor-proof structure

Abstract

This invention discloses a manhole cover with an odor-proof structure, relating to the field of odor control. It includes a manhole cover body and a hanger. The hanger has a cleaning component at its bottom, and an installation hole is formed on the inner wall of its bottom. An installation frame is fixedly connected inside the installation hole. This invention discloses a manhole cover with an odor-proof structure that, when a biological filter is purifying waste gas from the sewer, periodically activates a water pump. The pump directs rainwater collected in a collection tank into a hollow spray plate, which then flushes the air inlet of the biological filter through the spray holes. During flushing, a drive motor is activated, which drives the bristles on a rotating rod to brush the area below the air inlet, thereby cleaning the air inlet of the biological filter and preventing impurities from clogging it, thus ensuring the odor-proof effect of the manhole cover body.

Description

Technical Field

[0001] This invention relates to the field of odor control, and more particularly to a manhole cover with an odor-proof structure. Background Technology

[0002] Manhole covers are used to cover deep wells in roads or homes to prevent people or objects from falling in. They can be classified by material into metal manhole covers, high-strength fiber cement concrete manhole covers, resin manhole covers, etc. They are generally round and can be used in green belts, sidewalks, motor vehicle lanes, docks, alleys, etc. When using existing manhole covers, an odor-proof structure is usually added to the bottom to prevent the emission of odors from causing air pollution.

[0003] Existing manhole covers with odor-proof structures filter odors from the sewer through a biological filter located beneath the cover body, resulting in clean exhaust gas. However, the biological filter is located in the sewer, where the environment is quite polluted. Impurities and other contaminants in the sewer can significantly pollute the air intake of the biological filter, easily causing blockage. This renders the biological filter inoperable until the next cleaning, thus reducing the usability of the odor-proof manhole cover. Summary of the Invention

[0004] This invention discloses a manhole cover with an odor-proof structure, aiming to solve the problem that existing manhole covers with odor-proof structures filter odors from the sewer through a biological filter located beneath the cover body, resulting in clean exhaust gas. However, the biological filter is located in the sewer, where the environment is relatively polluted. Impurities in the sewer cause significant contamination to the air inlet of the biological filter, easily leading to blockage of the air inlet. This results in the biological filter being unable to function until the next cleaning.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A manhole cover with an odor-proof structure includes a cover body and a hanger. The hanger has a cleaning component at its bottom and an installation hole on its bottom inner wall. A mounting frame is fixedly connected inside the installation hole, and a biological filter is fixedly connected to the bottom of the mounting frame. The biological filter has an air inlet at its bottom and an exhaust port at the top of the mounting frame. The cleaning component includes a water collection tank, and a docking hole is formed on the bottom inner wall of the hanger near the mounting frame. The water collection tank is fixedly connected inside the docking hole, and a water pump is fixedly connected to the bottom of the water collection tank. The hanger is positioned between the water collection tank and the biological filter. A connecting rod is fixedly connected to the filter, and a hollow spray plate is fixedly connected to the bottom of the connecting rod. The hollow spray plate has spray holes on the side facing the air inlet. A miniature electrical box is fixedly connected to one side of the connecting rod. The water inlet of the water pump is connected to the inside of the water collection tank through a pipe, and the water delivery end of the water pump is fixedly connected to a water delivery pipe. The other end of the water delivery pipe is inserted into the inside of the hollow spray plate. A drive motor is fixedly connected to the bottom of the hanger, and the output shaft of the drive motor is fixedly connected to a rotating rod through a coupling. A collection assembly is provided on the rotating rod, and bristles are provided on the collection assembly. The bristles are in contact with the bottom of the biological filter.

[0007] Equipped with a cleaning component, the biofilter purifies the waste gas from the sewer. At regular intervals, a water pump is activated, drawing rainwater collected in the collection tank into a hollow spray plate. This water sprays through nozzles to flush the air inlet of the biofilter. During flushing, a drive motor is activated, rotating a rod to brush the area below the air inlet. This cleans the air inlet of the biofilter, preventing impurities from clogging it and ensuring the odor-proof effect of the manhole cover.

[0008] In a preferred embodiment, the collecting assembly includes a collecting ring, and a fixing ring plate is fixedly connected to the outer side of the rotating rod near the bottom end. A plurality of electric telescopic rods are fixedly connected to the top of the fixing ring plate, and the output ends of the plurality of electric telescopic rods are fixedly connected to the bottom of the collecting ring.

[0009] In a preferred embodiment, the outer side of the rotating rod is provided with a collection groove, and the inner wall of each collection groove near the bottom is connected to a deflection shaft via a bearing, with the brush bristles fixedly connected to the outer side of each deflection shaft.

[0010] By incorporating a collection component, after the brush bristles clean the air inlet of the biofilter, the drive motor rotates each bristle on the rotating rod to a position away from the air inlet of the biofilter. Then, the electric telescopic rod is adjusted to move the collection ring upward, thereby pushing the bristles and causing the deflection shaft to rotate, pressing the bristles into the collection groove. This prevents the bristles from being contaminated by impurities in the sewer when idle, ensuring the cleaning effect in the later stages.

[0011] In a preferred embodiment, the bottom of the manhole cover body is provided with hanging rods arranged in a ring, and an inner support is fixedly connected to the inner side of the hanger. The top of the inner support is provided with embedded rods arranged in a ring, and the embedded rods are engaged with the hanging rods.

[0012] In a preferred embodiment, the outer side of the hanger is provided with a sealing assembly, and the sealing assembly includes a close-to-outer ring rod, which is fixedly connected to the outer side of the hanger.

[0013] In a preferred embodiment, a sealing sleeve is provided on the outer side of the outer ring rod, and a limiting frame is fixedly connected to the top of the outer ring rod, with an air bladder provided on the inner side of the limiting frame.

[0014] In a preferred embodiment, an air pump is fixedly connected to the outside of one of the embedded rods, and the air pump's delivery end is connected to the inside of the inflatable bladder via a pipe.

[0015] With the sealing component in place, during the installation of the manhole cover, the sealing sleeve contacts the inner wall of the sewer. Then, the air pump is activated, and the air pump inflates the filling airbag. Under the constraint of the limiting frame, the filling airbag only inflates to the position close to the sealing sleeve, thereby compressing the sealing sleeve. This makes the sealing sleeve contact the side wall of the sewer more tightly, improving the sealing effect and preventing the exhaust gas in the sewer from being directly discharged into the air above through the hanger.

[0016] In a preferred embodiment, an L-shaped support rod is fixedly connected to the bottom of the hanger, and a fixing rod is fixedly connected to the outer side of the L-shaped support rod. An electric telescopic rod is fixedly connected to both sides of the fixing rod, and a reinforcement component is provided at the output end of each of the two electric telescopic rods.

[0017] In a preferred embodiment, the reinforcement component includes two bonding extrusion plates, and a push block is fixedly connected to each of the two bonding extrusion plates on opposite sides. The push block is fixedly connected to the output end of the electric telescopic rod.

[0018] In a preferred embodiment, friction plates are hinged to the outer sides of both bonding extrusion plates near their upper and lower ends, and a compression spring rod is fixedly connected to the outer side of each friction plate facing the bonding extrusion plate, with the other end of the compression spring rod fixedly connected to the outer side of the bonding extrusion plate.

[0019] With the reinforcement components in place, after the manhole cover body is installed, the electric telescopic rod is adjusted to move the friction plates toward the inner wall of the sewer. During the movement, each friction plate first contacts the inner wall of the sewer. During the contact, the compression spring rod is passively compressed, and the friction plates move toward the upper and lower ends to increase the contact area. When the friction plates contact the inner wall of the sewer, the installation firmness of the manhole cover body is improved by increasing the friction.

[0020] As can be seen from the above, the beneficial effects of the present invention are as follows:

[0021] 1. When the biological filter purifies the exhaust gas in the sewer, the water pump is started every once in a while. The water pump guides the rainwater collected in the water collection tank into the hollow spray plate. The spray holes flush the air inlet of the biological filter. During the flushing process, the drive motor is started. The drive motor drives the bristles on the rotating rod to brush the bottom of the air inlet, thereby cleaning the air inlet of the biological filter and preventing the air inlet of the biological filter from being blocked by impurities, which would prevent the exhaust gas in the sewer from entering the biological filter. This ensures the odor prevention effect of the manhole cover.

[0022] After the bristles clean the air inlet of the biofilter, the drive motor drives each bristle on the rotating rod to rotate to a position away from the air inlet of the biofilter. Then, the electric telescopic rod 2 is adjusted to drive the collecting ring to move upward, thereby pushing the bristles and causing the deflection shaft to rotate, pressing the bristles into the collecting groove. This prevents the bristles from being contaminated by impurities in the sewer when they are idle, ensuring their subsequent cleaning effect.

[0023] During the installation of the manhole cover, the sealing sleeve contacts the inner wall of the sewer. Then, the air pump is started, and the air pump inflates the filling airbag. Under the limitation of the limiting frame, the filling airbag only inflates to the position close to the sealing sleeve, thereby compressing the sealing sleeve and making the sealing sleeve contact the side wall of the sewer more tightly, improving the sealing effect and preventing the exhaust gas in the sewer from being directly discharged into the air above through the hanger.

[0024] After the manhole cover body is installed, the electric telescopic rod is adjusted to move the friction plate towards the inner wall of the sewer. During the movement, each friction plate first contacts the inner wall of the sewer. During the contact, the compression spring rod is passively compressed, and the friction plate moves towards the upper and lower ends to increase the contact area. When the friction plate contacts the inner wall of the sewer, the installation firmness of the manhole cover body is improved by increasing the friction. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the overall structure of a manhole cover with an odor-proof structure proposed in this invention.

[0026] Figure 2 This is a front view of the overall structure of a manhole cover with an odor-proof structure proposed in this invention.

[0027] Figure 3 This is a cross-sectional view of the hanger structure of a manhole cover with an odor-proof structure proposed in this invention.

[0028] Figure 4 This is a schematic diagram of a cleaning component for a manhole cover with an odor-proof structure proposed in this invention.

[0029] Figure 5 for Figure 4 The structure is flipped.

[0030] Figure 6 This is a schematic diagram of a manhole cover with an anti-odor structure proposed in this invention.

[0031] Figure 7 This is a schematic diagram of a sealing assembly for a manhole cover with an odor-proof structure proposed in this invention.

[0032] Figure 8 This is a schematic diagram of a reinforcement component for a manhole cover with an odor-proof structure proposed in this invention.

[0033] In the diagram: 1. Manhole cover body; 2. Hanger; 3. L-shaped support rod; 4. Internal support; 5. Biological filter; 6. Fixing rod; 7. Electric telescopic rod one; 8. Reinforcing component; 801. Adhesive extrusion plate; 802. Push block; 803. Friction plate; 804. Extrusion spring rod; 9. Hanging rod; 10. Embedded rod; 11. Mounting frame; 12. Vent hole; 13. Cleaning component; 1301. Water collection tank; 1302. Water pump; 1303. Connecting rod; 1304. Hollow spray plate; 1305. Water supply pipe; 1306, rotating rod; 1307, brush bristles; 1308, drive motor; 1309, miniature electrical box; 1310, spray nozzle; 14, air inlet port; 15, collecting assembly; 1501, collecting ring; 1502, fixing ring plate; 1503, electric telescopic rod II; 1504, deflection shaft; 1505, collecting groove; 16, sealing assembly; 1601, close to the outer ring rod; 1602, sealing sleeve; 1603, filling airbag; 1604, limiting frame; 1605, air pump. Detailed Implementation

[0034] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0035] The odor-proof manhole cover disclosed in this invention is mainly applied to existing odor-proof manhole covers. In use, the cover uses a biological filter located under the cover body to filter odors from the sewer, thus ensuring that the discharged gas is clean. However, the biological filter is located in the sewer, where the environment is quite polluted. Impurities in the sewer can cause significant pollution to the air inlet of the biological filter, easily leading to blockage of the air inlet. This would result in the biological filter being unable to function until the next cleaning.

[0036] Reference Figures 1-8A manhole cover with an odor-proof structure includes a cover body 1 and a hanger 2. The hanger 2 has a cleaning component 13 at its bottom and an installation hole on its inner bottom wall. An installation frame 11 is fixedly connected inside the installation hole. A biological filter 5 is fixedly connected to the bottom of the installation frame 11. An air inlet port 14 is located at the bottom of the biological filter 5. An exhaust port 12 is located at the top of the installation frame 11. The cleaning component 13 includes a water collection tank 1301. A docking hole is located on the inner bottom wall of the hanger 2 near the installation frame 11. The water collection tank 1301 is fixedly connected inside the docking hole. A water pump 1302 is fixedly connected to the bottom of the water collection tank 1301. A connecting rod 1303 is fixedly connected to the bottom of the hanger 2 between the water collection tank 1301 and the biological filter 5. A hollow spray plate 1304 is fixedly connected to the bottom of the filter 5. The hollow spray plate 1304 has a spray hole 1310 on the side facing the air inlet port 14. A micro electrical box 1309 is fixedly connected to one side of the connecting rod 1303. The water inlet end of the water pump 1302 is connected to the inside of the water collection tank 1301 through a pipe. The water delivery end of the water pump 1302 is fixedly connected to a water delivery pipe 1305. The other end of the water delivery pipe 1305 is inserted into the inside of the hollow spray plate 1304. A drive motor 1308 is fixedly connected to the bottom of the hanger 2. The output shaft of the drive motor 1308 is fixedly connected to a rotating rod 1306 through a coupling. A collection assembly 15 is provided on the rotating rod 1306. Brushes 1307 are provided on the collection assembly 15. The brushes 1307 are in contact with the bottom of the biological filter 5.

[0037] It should be noted that when the biological filter 5 purifies the exhaust gas in the sewer, the water pump 1302 is started every once in a while. The water pump 1302 guides the rainwater collected inside the water collection tank 1301 into the hollow spray plate 1304, and flushes the air inlet port 14 of the biological filter 5 through the spray hole 1310. During the flushing process, the drive motor 1308 is started. The drive motor 1308 drives the bristles 1307 on the rotating rod 1306 to brush the bottom of the air inlet port 14, thereby cleaning the air inlet port 14 of the biological filter 5 and preventing the air inlet port 14 of the biological filter 5 from being blocked by impurities, which would prevent the exhaust gas in the sewer from entering the biological filter 5, thus ensuring the odor prevention effect of the manhole cover body 1.

[0038] Reference Figure 1 , Figure 2 , Figure 3 , Figure 5 and Figure 6In a preferred embodiment, a fixed ring plate 1502 is fixedly connected to the outer side of the rotating rod 1306 near the bottom end. A plurality of electric telescopic rods 1503 are fixedly connected to the top of the fixed ring plate 1502. The output ends of the plurality of electric telescopic rods 1503 are fixedly connected to the bottom of the collecting ring 1501. A collecting groove 1505 is circumferentially opened on the outer side of the rotating rod 1306. A deflection shaft 1504 is connected to the inner wall of each collecting groove 1505 near the bottom end through a bearing. The bristles 1307 are fixedly connected to the outer side of each deflection shaft 1504.

[0039] Specifically, after the bristles 1307 brush the air inlet 14 of the biological filter 5, the drive motor 1308 drives each bristle 1307 on the rotating rod 1306 to rotate to a position away from the air inlet 14 of the biological filter 5. Then, the electric telescopic rod 1503 is adjusted to drive the collecting ring 1501 to move upward, thereby pushing the bristles 1307, causing the deflection shaft 1504 to rotate, pressing the bristles 1307 into the collecting groove 1505, so as to prevent the bristles 1307 from being contaminated by impurities in the sewer when idle, and to ensure its subsequent brushing effect.

[0040] Reference Figure 1 and Figure 2 In a preferred embodiment, the bottom of the manhole cover body 1 is provided with hanging rods 9 arranged in a ring, and the inner side of the hanger 2 is fixedly connected with an inner support 4. The top of the inner support 4 is provided with embedded rods 10 arranged in a ring, and the embedded rods 10 are snapped onto the hanging rods 9.

[0041] Reference Figure 1 , Figure 2 and Figure 7 In a preferred embodiment, a sealing assembly 16 is provided on the outer side of the hanger 2, and the sealing assembly 16 includes a close-to-outer ring rod 1601, which is fixedly connected to the outer side of the hanger 2. A sealing sleeve 1602 is provided on the outer side of the close-to-outer ring rod 1601, and a limiting frame 1604 is fixedly connected to the top of the close-to-outer ring rod 1601. An air-filling bladder 1603 is provided on the inner side of the limiting frame 1604. An air pump 1605 is fixedly connected to the outer side of one of the embedded rods 10, and the air supply end of the air pump 1605 is connected to the inside of the air-filling bladder 1603 through a pipe.

[0042] In specific application scenarios, when installing the manhole cover body 1, the sealing sleeve 1602 contacts the inner wall of the sewer, and then the air pump 1605 is started. The air pump 1605 inflates the filling air bag 1603. Under the limitation of the limiting frame 1604, the filling air bag 1603 inflates only to the position close to the sealing sleeve 1602, thereby compressing the sealing sleeve 1602, making the sealing sleeve 1602 contact the side wall of the sewer more tightly, improving the sealing effect, and preventing the exhaust gas in the sewer from being directly discharged into the air above through the hanger 2.

[0043] Reference Figure 1 , Figure 2 and Figure 8 In a preferred embodiment, an L-shaped support rod 3 is fixedly connected to the bottom of the hanger 2, and a fixing rod 6 is fixedly connected to the outer side of the L-shaped support rod 3. Electric telescopic rods 7 are fixedly connected to both sides of the fixing rod 6, and the output ends of the two electric telescopic rods 7 are provided with reinforcing components 8.

[0044] In this invention, the reinforcing component 8 includes two bonding and pressing plates 801, and a pushing block 802 is fixedly connected to one side of each of the two bonding and pressing plates 801. The pushing block 802 is fixedly connected to the output end of the electric telescopic rod 7. Friction plates 803 are hinged to the outer sides of the two bonding and pressing plates 801 near the upper and lower ends. A compression spring rod 804 is fixedly connected to the outer side of each friction plate 803 facing the bonding and pressing plate 801. The other end of the compression spring rod 804 is fixedly connected to the outer side of the bonding and pressing plate 801.

[0045] It should be noted that after the manhole cover body 1 is installed, the electric telescopic rod 7 is adjusted to drive the contact compression plate 801 to move towards the inner wall of the sewer. During the movement, each friction plate 803 first contacts the inner wall of the sewer. During the contact, the compression spring rod 804 is passively compressed, and the friction plate 803 moves towards the upper and lower ends to increase the contact area. When the contact compression plate 801 contacts the inner wall of the sewer, the installation firmness of the manhole cover body 1 is improved by increasing the friction.

[0046] Working Principle: During use, after installing the manhole cover body 1, the electric telescopic rod 7 is adjusted to move the contact compression plate 801 towards the inner wall of the sewer. During this movement, each friction plate 803 first contacts the inner wall of the sewer. During this contact, the compression spring rod 804 is passively compressed, causing the friction plates 803 to move towards the upper and lower ends. After initial installation, the air pump 1605 is started, inflating the filling air bladder 1603. Under the constraint of the limiting frame 1604, the filling air bladder 1603 only inflates near the sealing sleeve 1602, thus compressing the sealing sleeve 1602 and making the sealing sleeve 1602 contact the side wall of the sewer more tightly. During the operation of the manhole cover body 1, the water pump 1302 is started periodically, pumping water from the collection tank 130... 1. Rainwater collected internally is introduced into the hollow spray plate 1304 and sprayed through the nozzles 1310 to flush the air inlet port 14 of the biofilter 5. During the flushing process, the drive motor 1308 is started, and the drive motor 1308 drives the bristles 1307 on the rotating rod 1306 to brush the area below the air inlet port 14, thereby cleaning the air inlet port 14 of the biofilter 5. After the bristles 1307 have brushed the air inlet port 14 of the biofilter 5, the drive motor 1308 drives the bristles 1307 on the rotating rod 1306 to rotate to a position away from the air inlet port 14 of the biofilter 5. Then, the electric telescopic rod 1503 is adjusted to drive the collecting ring 1501 to move upward, thereby pushing the bristles 1307, causing the deflection shaft 1504 to rotate and press the bristles 1307 into the collecting groove 1505.

[0047] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A manhole cover with an anti-odor structure, comprising a manhole cover body (1) and a hanger (2), characterized in that, A cleaning component (13) is provided at the bottom of the hanging bracket (2), and an installation hole is formed in the inner wall of the bottom of the hanging bracket (2). An installation frame (11) is fixedly connected inside the installation hole. A biological filter (5) is fixedly connected to the bottom of the installation frame (11). An air inlet port (14) is formed at the bottom of the biological filter (5). An exhaust hole (12) is formed at the top of the installation frame (11). The cleaning component (13) includes a water collection tank (1301), and a docking hole is formed in the inner wall of the bottom of the hanging bracket (2) close to the installation frame (11). The water collection tank (1301) is fixedly connected inside the docking hole. A water pump (1302) is fixedly connected to the bottom of the water collection tank (1301). A connecting rod (1303) is fixedly connected to the bottom of the hanging bracket (2) between the water collection tank (1301) and the biological filter (5). A hollow spray plate (1304) is fixedly connected to the bottom of the connecting rod (1303). Spray holes (1310) are formed on one side of the hollow spray plate (1304) facing the air inlet port (14). A micro electrical box (1309) is fixedly connected to one side of the connecting rod (1303). The water inlet end of the water pump (1302) is connected to the inside of the water collection tank (1301) through a pipeline, and the water delivery end of the water pump (1302) is fixedly connected to a water delivery pipe (1305). The other end of the water delivery pipe (1305) is inserted into the inside of the hollow spray plate (1304). A driving motor (1308) is fixedly connected to the bottom of the hanging bracket (2), and a rotating rod (1306) is fixedly connected to the output shaft of the driving motor (1308) through a coupling. A winding component (15) is provided on the rotating rod (1306), and bristles (1307) are provided on the winding component (15). The bristles (1307) are in contact with the bottom of the biological filter (5); Hanging rods (9) are annularly distributed at the bottom of the manhole cover body (1), and an inner support (4) is fixedly connected to the inside of the hanging bracket (2). Embedding rods (10) are annularly distributed at the top of the inner support (4). The embedding rods (10) are clamped on the hanging rods (9); A sealing component (16) is provided on the outside of the hanging bracket (2), and the sealing component (16) includes a close-fitting outer ring rod (1601). The close-fitting outer ring rod (1601) is fixedly connected to the outside of the hanging bracket (2); A sealing sleeve (1602) is provided on the outside of the close-fitting outer ring rod (1601), and a limiting frame (1604) is fixedly connected to the top of the close-fitting outer ring rod (1601). A filling airbag (1603) is provided inside the limiting frame (1604); An air pump (1605) is fixedly connected to the outside of one of the embedding rods (10), and the air delivery end of the air pump (1605) is connected to the inside of the filling airbag (1603) through a pipeline; An L-shaped support rod (3) is fixedly connected to the bottom of the hanging bracket (2), and a fixing rod (6) is fixedly connected to the outside of the L-shaped support rod (3). Electric telescopic rods one (7) are fixedly connected to both sides of the fixing rod (6). Reinforcement components (8) are provided at the output ends of the two electric telescopic rods one (7); The reinforcement component (8) includes two fitting and pressing plates (801), and pushing blocks (802) are fixedly connected to the opposite sides of the two fitting and pressing plates (801). The pushing blocks (802) are fixedly connected to the output ends of the first electric telescopic rods (7); Friction plates (803) are hinged to the outer sides of the two fitting and pressing plates (801) near the upper and lower ends. And pressing spring rods (804) are fixedly connected to the outer sides of each friction plate (803) facing the fitting and pressing plates (801). The other ends of the pressing spring rods (804) are fixedly connected to the outer sides of the fitting and pressing plates (801).

2. The manhole cover with an anti-odor structure according to claim 1, wherein The winding component (15) includes a winding ring (1501). A fixed ring plate (1502) is fixedly connected to the outer side of the rotating rod (1306) near the bottom end. A plurality of second electric telescopic rods (1503) are fixedly connected to the top of the fixed ring plate (1502). The output ends of the plurality of second electric telescopic rods (1503) are fixedly connected to the bottom of the winding ring (1501).

3. The manhole cover with an anti-odor structure according to claim 2, characterized in that, Winding grooves (1505) are annularly formed on the outer side of the rotating rod (1306). And deflection shafts (1504) are connected to the inner walls of each winding groove (1505) near the bottom end through bearings. Brush hairs (1307) are fixedly connected to the outer sides of each deflection shaft (1504).

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