Urban intelligent public toilet odor purification equipment

Abstract

The utility model relates to air purification equipment technical field, concretely for city wisdom public lavatory peculiar smell purification equipment, including inhale subassembly, exhaust seat and connecting pipeline, inhale subassembly includes casing and embedded box, is provided with active carbon fiber layer, photocatalyst ceramic carrier layer and ultraviolet lamp tube in the casing, is provided with a plurality of air suction covers on the embedded box. The city wisdom public lavatory peculiar smell purification equipment, through direct installation in the compartment, can purify the source air of peculiar smell in the first time, the peculiar smell air directly enters the embedded box inside through the air suction cover from the public lavatory compartment, shortens the time of peculiar smell staying and diffusing in the compartment, through the cooperation of the limiting hole on the end plate and the ball bowl of the air suction cover tail, makes the air suction cover flexible adjustment suction angle, improves the adaptation ability to different peculiar smell distribution.

Description

Technical Field

[0001] This utility model relates to the field of air purification equipment technology, specifically to an odor purification device for smart public toilets in cities. Background Technology

[0002] As a vital component of urban public services, the air quality of public restrooms directly impacts the user experience and the overall quality of the urban environment. Unpleasant odors, a common problem in public restrooms, not only affect sensory comfort but may also be linked to environmental health. Smart public restroom odor purification technology, through purification methods adapted to the specific restroom environment, treats the air within each stall, helping to create a fresh and comfortable environment and supporting the upgrading of urban public health services and improving the convenience of citizens' lives.

[0003] Utility model patent CN210801459U discloses a multimedia device for purifying odors in public restrooms. This device includes a main body, an air purification component, a photocatalytic component, tea bags, and activated carbon filters. The odor purification component consists of three stages: coarse purification with tea bags, fine purification with activated carbon filters, and purification through the photocatalytic component. A fragrance-enhancing component is integrated into the fine purification process with the activated carbon filters. The fragrance liquid, through self-evaporation and atomization by atomizing nozzles, is then fully mixed with the purified air by a fan and drawn out. The fragrance liquid is made from diluted floral water or mentholatum, which can both deodorize and repel mosquitoes. The multiple tea bags and activated carbon filters form a multi-stage filtration system. When replacing filters, only the filters with more impurities at the front of the air intake can be replaced, while the filters at the rear can be moved to the front for continued use, achieving rational resource utilization and saving air purification costs.

[0004] This public toilet odor purification multimedia device is not directly installed inside the cubicles. In actual public toilet use, after an odor is generated in a cubicle, it takes a certain distance and time to reach the device, making it difficult to purify the air in the cubicle where the main odor is emitted in a timely manner. During this time, the odor has already spread throughout the public toilet space. At the same time, it cannot effectively and efficiently absorb odors from different locations within the cubicle. In view of this, we propose the urban smart public toilet odor purification device. Utility Model Content

[0005] The purpose of this invention is to provide an odor purification device for smart public toilets in cities, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: Urban smart public toilet odor purification equipment includes: An intake assembly for drawing in air from a public toilet stall is installed on the inner wall of one side of the stall. The intake assembly includes a shell with an open front end and an embedded box installed at the bottom of the shell. The shell is divided into a lower cavity and an upper purification cavity by a partition. The embedded box is fitted into the lower cavity. The purification cavity contains, from bottom to top, an activated carbon fiber layer, a photocatalytic ceramic carrier layer, and an ultraviolet lamp. An end plate is installed at the front end of the embedded box. Several suction hoods are provided at the front end of the embedded box, passing through the end plate. A spherical bowl is provided at the rear end of the suction hood. The spherical bowl is restricted by the end plate at the front end of the embedded box and can move at the front end of the embedded box. An exhaust vent, used to expel purified air, is installed on the inner wall of the other side of the public toilet cubicle; A connecting pipe, a rectangular pipe used to connect the inhalation assembly and the exhaust seat.

[0007] Preferably, the partition has several through holes, and a fan is installed on the partition above each through hole; In this setup, the through-hole allows air from the bottom cavity to smoothly enter the purification chamber, and the negative pressure generated by the fan drives the air to flow in an orderly manner, while preventing impurities from entering the purification chamber with the airflow.

[0008] Preferably, a pair of rectangular frame-shaped partitions are fixed inside the purification chamber, the middle of the partitions is transparent, and the activated carbon fiber layer is sleeved between the two partitions. In this design, the partition provides stable support and restraint for the activated carbon fiber layer, preventing it from shifting under the impact of airflow. The open structure in the middle does not block the airflow, ensuring that the air and the activated carbon fiber layer are in full contact.

[0009] Preferably, the photocatalytic ceramic carrier layer overlaps on the topmost partition frame, a lamp holder for mounting the ultraviolet lamp is installed at the top of the purification chamber, and a cover plate for sealing the purification chamber is installed at the front opening of the purification chamber. In this setup, the partition provides overlapping support for the photocatalytic ceramic carrier layer, the lamp holder ensures stable installation of the ultraviolet lamp tube and uniform illumination of the carrier layer by ultraviolet light, and the cover plate can seal the purification chamber to reduce air leakage during the purification process.

[0010] Preferably, the interior of the embedding box is hollow, and the front end of the embedding box has a spherical cavity for installing the ball bowl, the spherical cavity is connected to the interior of the embedding box, and the top end of the embedding box has a through opening, the through opening is connected to the through hole; In this design, the hollow structure can accommodate the intake air, the spherical cavity is adapted to the spherical bowl to adjust the angle of the intake hood, and the opening and through hole are connected to form an airflow channel to ensure that air can smoothly enter the purification chamber from the embedded box.

[0011] Preferably, the end plate is provided with a plurality of limiting holes, the number of the limiting holes being equal to the number of the ball cavities and their positions corresponding one-to-one. The hole wall of the limiting hole is spherical, the inner diameter of the limiting hole located on the inner end face of the end plate is greater than the inner diameter of the limiting hole located on the outer end face of the end plate, and the center of the spherical hole wall of the limiting hole is located at the rear end of the end plate. In this setup, the spherical cavity wall is adapted to the rotation of the ball bowl, and the difference between the inner and outer diameters limits the range of motion of the ball bowl to prevent it from falling off. The design of the hole center position ensures that the air intake hood can be flexibly adjusted to adapt to different odor accumulation areas.

[0012] Preferably, the exhaust seat has a hollow box structure, and several through grooves are formed on the outer surface of the exhaust seat, and the through grooves are evenly distributed along the outer surface of the exhaust seat. In this design, the hollow structure can hold the purified air, and the evenly distributed channels allow the air to be discharged smoothly from multiple directions, avoiding local airflow disturbances caused by exhaust from a single direction and improving exhaust uniformity.

[0013] Preferably, both the top of the housing and the top of the exhaust seat are provided with connection ports, and the beginning and end ends of the connecting pipe are respectively covered outside the connection ports at the top of the housing and the exhaust seat. In this configuration, the connection port provides an installation docking position for the connecting pipe. The pipe cover method can reduce the leakage of purified air during transmission and ensure that the air is stably delivered from the housing to the exhaust seat.

[0014] Compared with the prior art, the beneficial effects of this utility model are: 1. The city's smart public toilet odor purification equipment, by being directly installed in the cubicle, can purify the air from which odors originate in the first instance. The odorous air enters the embedded box directly from the public toilet cubicle through the air suction hood, shortening the time that odors stay and spread in the cubicle. 2. The odor purification equipment for smart public toilets in this city uses a limiting hole on the end plate to cooperate with the ball cup at the tail of the suction hood. This allows the suction hood to move within the spherical limiting hole on the end plate, enabling it to flexibly adjust the suction angle. When facing odor accumulation areas in different locations within the cubicle, whether in corners, near the toilet, or other locations, the suction hood can adjust its angle in time to efficiently suction the odor source, improving its adaptability to different odor distributions and enhancing the odor purification effect. Attached Figure Description

[0015] Figure 1This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the overall structure and installation of this utility model; Figure 3 This is an exploded view of the inhalation component in this utility model; Figure 4 This is a schematic diagram of the shell structure in this utility model; Figure 5 This is a schematic diagram of the internal structure of the shell in this utility model; Figure 6 This is an exploded view of the embedded box in this utility model; The meanings of the labels in the diagram are as follows: 100. Inhalation assembly; 110. Housing; 111. Partition; 1111. Through hole; 1112. Fan; 112. Bottom cavity; 113. Purification chamber; 1131. Partition frame; 1132. Cover plate; 114. Activated carbon fiber layer; 115. Photocatalyst ceramic carrier layer; 116. Ultraviolet lamp tube; 120. Embedded box; 121. Ball cavity; 122. Through port; 123. End plate; 1231. Limiting hole; 124. Inhalation hood; 1241. Ball cup; 200, Exhaust seat; 210, Through groove; 300. Connecting pipes. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0017] Please see Figures 1-6The urban smart public toilet odor purification equipment includes an intake component 100 for drawing in air from the toilet cubicles, an exhaust seat 200 for expelling purified air, and a rectangular connecting pipe 300 connecting the intake component 100 and the exhaust seat 200. The connecting pipe 300 is made of ABS engineering plastic, which is lightweight and impact-resistant, and can adapt to the complex installation environment inside public toilets. The intake component 100 is installed on one side of the inner wall of the toilet cubicle, which can directly target the odor source area inside the cubicle, reducing the odor diffusion path. The exhaust seat 200... Installed on the inner wall of the other side of the public toilet cubicle, it is diagonally distributed with the suction component 100 to realize the circulation of air in the cubicle. The suction component 100 includes a housing 110 with an open front end and an embedded box 120 installed in the bottom of the housing 110. The housing 110 is made of 304 stainless steel, which can resist the corrosion of cleaning liquid in the public toilet and extend the service life of the equipment. The embedded box 120 is used to draw in air, purify the air in the housing 110, and then discharge it into the exhaust seat 200 through the connecting pipe 300. Its detachable installation method facilitates subsequent cleaning and maintenance.

[0018] like Figure 1 and Figure 2 As shown, in this utility model, both the top of the housing 110 and the top of the exhaust seat 200 have connection ports. The beginning and end ends of the connecting pipe 300 are respectively covered outside the connection ports at the top of the housing 110 and the exhaust seat 200. EPDM rubber sealing rings are nested at the connection ports to enhance the sealing performance between the connecting pipe 300 and the connection ports, preventing purified air from leaking back into the compartment. The exhaust seat 200 has a hollow box structure and is made of PP plastic, which combines weather resistance and low cost. Several through grooves 210 are formed on the outer surface of the exhaust seat 200. The through grooves 210 are evenly distributed along the outer surface of the exhaust seat 200. This distribution allows purified air to be discharged smoothly from multiple directions, avoiding local airflow disturbances caused by exhaust from a single direction.

[0019] like Figure 4 and Figure 5As shown, specifically, the housing 110 is divided into a lower cavity 112 and an upper purification cavity 113 by a partition 111. The partition 111 is made of stainless steel, which has excellent structural strength and corrosion resistance, can withstand the weight of the upper fan 1112 and purification components, and resists the erosion of the humid environment in the public toilet. The lower cavity 112 can provide a buffer space for the intake air to prevent the airflow from directly impacting the purification components. The embedded box 120 is fitted in the lower cavity 112. Several through holes 1111 are opened on the partition 111 to ensure smooth airflow and prevent impurities from entering the purification cavity 113. A fan 1112 is installed on each partition 111 above the through hole 1111. The fan 1112 is a silent axial flow fan, which can reduce operating noise while providing stable negative pressure. The negative pressure generated by the fan 1112 can drive the air in the lower cavity 112 upward into the purification cavity 113. The top of the embedded box 120 has an opening 122, which is connected to the through hole 1111. This connection structure can form an airflow channel of "embedded box 120 → opening 122 → through hole 1111 → purification chamber 113" to ensure orderly airflow.

[0020] like Figures 3-5As shown, further, the interior of the purification chamber 113 is arranged from bottom to top as follows: an activated carbon fiber layer 114, a photocatalytic ceramic carrier layer 115, and an ultraviolet lamp 116. This layered structure enables gradual air purification. A pair of rectangular frame-shaped partitions 1131 are fixed inside the purification chamber 113. The partitions 1131 are made of stainless steel, possessing high strength and corrosion resistance, providing stable support for the activated carbon fiber layer 114 and the photocatalytic ceramic carrier layer 115, preventing deformation after long-term use. The middle of the partitions 1131 is open to avoid obstructing airflow. The activated carbon fiber layer 114 is nested between the two partitions 1131. The activated carbon fiber layer 114 is made of polypropylene-based activated carbon fiber, and its pleated structure increases the contact area with air, enabling preliminary adsorption of large molecular odor substances such as organic acids in the air. The limiting effect of the two partitions 1131 prevents the activated carbon fiber layer 114 from shifting under airflow impact. The photocatalytic ceramic carrier layer 115 overlaps the topmost partition frame 1131. The photocatalytic ceramic carrier layer 115 uses cordierite ceramic as the substrate and is coated with a nano-titanium dioxide coating. Under ultraviolet light irradiation, it can generate hydroxyl radicals to degrade small molecule odor substances such as hydrogen sulfide. A lamp holder for installing ultraviolet lamp tube 116 is installed at the top of the purification chamber 113. The ultraviolet lamp tube 116 is a UVC-LED lamp tube with a wavelength of 254nm, which can provide stable ultraviolet light and provide energy for the catalytic reaction of the photocatalytic ceramic carrier layer 115. A cover plate 1132 for sealing the purification chamber 113 is installed at the front opening of the purification chamber 113. The cover plate 1132 is made of stainless steel and has excellent wear resistance and corrosion resistance. It is installed on the housing 110 by bolts. The bolt connection method can enhance the connection stability between the cover plate 1132 and the housing 110, and at the same time facilitate disassembly to replace the purification material.

[0021] like Figure 6As shown, the interior of the insert box 120 is hollow to accommodate the intake air. An end plate 123 is installed at the front end of the insert box 120. The end plate 123 is made of ABS plastic with a frosted surface to reduce fingerprint residue. Several suction hoods 124 are provided at the front end of the insert box 120. The suction hoods 124 and the ball cups 1241 at the rear are integrally molded from ABS plastic. ABS plastic has good processing properties, allowing for precise molding of the horn-shaped structure of the suction hoods 124 to expand the suction range. The suction hoods 124 pass through the end plate 123. The rear of the ball cups 1241 is open. The front end of the insert box 120 has a spherical cavity 121 for mounting the ball cups 1241. The spherical curvature of the cavity 121 matches that of the ball cups 1241, ensuring that the ball cups 1241 can rotate freely. The ball cavity 121 is connected to the interior of the embedded box 120. The end plate 123 has several limiting holes 1231. The number of limiting holes 1231 is equal to that of the ball cavity 121 and their positions correspond one-to-one. The hole wall of the limiting hole 1231 is spherical. The inner diameter of the limiting hole 1231 located on the inner end face of the end plate 123 is larger than the inner diameter of the limiting hole 1231 located on the outer end face of the end plate 123. The center of the spherical hole wall of the limiting hole 1231 is located at the rear end of the end plate 123. This structural design can limit the range of motion of the ball bowl 1241 and prevent the air suction hood 124 from falling off. At the same time, the ball bowl 1241 is restricted by the end plate 123 to the front end of the embedded box 120 and can move at the front end of the embedded box 120, thereby realizing the flexible adjustment of the suction angle of the air suction hood 124 to adapt to the odor accumulation areas in different locations in the compartment.

[0022] It is worth noting that the fan 1112 and ultraviolet lamp 116 involved in this utility model are both existing conventional technologies, and will not be described in detail in this utility model.

[0023] In this embodiment, the odor purification device for urban smart public toilets operates as follows: First, the fan 1112 on the partition 111 is activated. The fan 1112 generates negative pressure, causing the odorous air in the toilet cubicle to be drawn into the front suction hood 124. At this time, the angle of the suction hood 124 can be adjusted according to the location of odor accumulation. The one-piece molded ball cup 1241 rotates flexibly with the cooperation of the ball cavity 121 and the limiting hole 1231, ensuring that the suction hood 124 is aligned with the odor source. Then, the air enters the embedded box 120 through the suction hood 124, and then flows into the through hole 1111 on the stainless steel partition 111 through the opening 122 at the top of the embedded box 120, and then enters the bottom cavity 112 below for airflow buffering. Next, the air in the bottom cavity 112... Driven by the fan 1112, the air enters the purification chamber 113 from the top. It first passes through the activated carbon fiber layer 114 to initially adsorb large molecular odor substances, and then flows through the photocatalytic ceramic carrier layer 115 overlapping the partition 1131. Under the ultraviolet light emitted by the ultraviolet lamp tube 116, the photocatalytic degradation of small molecular odor substances is completed, thus purifying the air. Finally, the purified air flows out from the top of the purification chamber 113, is transported to the exhaust seat 200 through the connecting pipe 300, and is then discharged from the evenly distributed through grooves 210 on the outside of the exhaust seat 200, realizing the purification and circulation of air in the public toilet cubicle. When it is necessary to replace the purification material, the cover plate 1132 can be opened by removing the bolts connecting the cover plate 1132 and the housing 110. The operation is convenient and the connection is stable.

[0024] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. An odor purification device for smart public toilets in cities, characterized in that, include: An intake assembly (100) is used to intake air from a public toilet stall. The intake assembly (100) is installed on the inner wall of one side of the public toilet stall. The intake assembly (100) includes a housing (110) with an open front end and an embedded box (120) installed in the bottom of the housing (110). The housing (110) is divided into a bottom cavity (112) located below and a purification cavity (113) located above by a partition (111). The embedded box (120) is fitted in the bottom cavity (112). The interior of the purification cavity (113) is arranged from bottom to top as follows: The device has an activated carbon fiber layer (114), a photocatalytic ceramic carrier layer (115), and an ultraviolet lamp tube (116). An end plate (123) is installed at the front end of the embedded box (120). Several suction hoods (124) are provided at the front end of the embedded box (120). The suction hoods (124) pass through the end plate (123). A spherical bowl (1241) is provided at the rear end of the suction hood (124). The bowl (1241) is restricted by the end plate (123) at the front end of the embedded box (120) and can move at the front end of the embedded box (120). An exhaust seat (200) is used to exhaust purified air, and the exhaust seat (200) is installed on the inner wall of the other side of the public toilet cubicle; A connecting pipe (300) is a rectangular pipe used to connect the inhalation assembly (100) and the exhaust seat (200).

2. The odor purification equipment for smart public toilets in cities according to claim 1, characterized in that: The partition (111) has several through holes (1111), and a fan (1112) is installed on the partition (111) above each through hole (1111).

3. The odor purification equipment for smart public toilets in cities according to claim 1, characterized in that: The purification chamber (113) is fixed with a pair of rectangular frame-shaped partitions (1131). The middle part of the partitions (1131) is transparent, and the activated carbon fiber layer (114) is sleeved between the two partitions (1131).

4. The odor purification equipment for smart public toilets in cities according to claim 3, characterized in that: The photocatalytic ceramic carrier layer (115) overlaps on the topmost partition frame (1131). A lamp holder for installing the ultraviolet lamp tube (116) is installed at the top of the purification chamber (113). A cover plate (1132) for sealing the purification chamber (113) is installed at the front end of the purification chamber (113).

5. The odor purification equipment for smart public toilets in cities according to claim 2, characterized in that: The interior of the embedding box (120) is hollow. The front end of the embedding box (120) is provided with a ball cavity (121) for installing the ball bowl (1241). The ball cavity (121) is connected to the interior of the embedding box (120). The top end of the embedding box (120) is provided with a through opening (122), which is connected to the through hole (1111).

6. The odor purification equipment for smart public toilets in cities according to claim 5, characterized in that: The end plate (123) is provided with a plurality of limiting holes (1231). The number of limiting holes (1231) is equal to that of the spherical cavity (121) and their positions correspond one-to-one. The hole wall of the limiting hole (1231) is spherical. The inner diameter of the limiting hole (1231) located on the inner end face of the end plate (123) is greater than the inner diameter of the limiting hole (1231) located on the outer end face of the end plate (123). The center of the spherical hole wall of the limiting hole (1231) is located at the rear end of the end plate (123).

7. The odor purification equipment for smart public toilets in cities according to claim 1, characterized in that: The exhaust seat (200) has a hollow box structure. Several through grooves (210) are provided on the outer surface of the exhaust seat (200). The through grooves (210) are evenly distributed along the outer surface of the exhaust seat (200).

8. The odor purification equipment for smart public toilets in cities according to claim 1, characterized in that: The top of the housing (110) and the top of the exhaust seat (200) are both provided with connection ports, and the beginning and end ends of the connecting pipe (300) are respectively covered outside the connection ports at the top of the housing (110) and the exhaust seat (200).

Images