A photocatalytic formaldehyde removal device
By using a diversion rod and a box design, the problem of water molecule formation and dirt formation in photocatalytic formaldehyde removal devices has been solved, achieving centralized collection of dirt and convenient cleaning, thus improving the formaldehyde removal effect and the stability of the equipment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHENZHEN SHIMEIJIA TECH CO LTD
- Filing Date
- 2025-07-31
- Publication Date
- 2026-06-09
AI Technical Summary
During the use of photocatalytic formaldehyde removal devices, water molecules combine with dust to form dirt, affecting indoor cleanliness and aesthetics, and the internal components are inconvenient to disassemble and assemble.
The design incorporates a guiding mechanism and a collection chamber. Water molecules are guided to condense into droplets and slide into the collection box via a diversion rod. The collection chamber is secured by a sliding buckle and a limiting sliding frame, facilitating cleaning.
It achieves centralized collection of water vapor and dirt, reduces the number and difficulty of cleaning, improves the formaldehyde removal effect, and enhances the ease of disassembly and assembly and the stability of the equipment.
Smart Images

Figure CN224340299U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the technical field of air purification equipment, and in particular relates to a photocatalytic formaldehyde removal device. Background Technology
[0002] As people increasingly value indoor air quality, photocatalytic formaldehyde removal technology is widely used in the formaldehyde treatment field due to its environmentally friendly and efficient characteristics. Under light conditions, photocatalysts can decompose formaldehyde into harmless carbon dioxide and water molecules. However, the water molecules produced by photocatalytic formaldehyde decomposition can combine with dust in the air to form dirt. This dirt easily adheres to the ground near the formaldehyde removal device, affecting indoor cleanliness and aesthetics. Summary of the Invention
[0003] The purpose of this invention is to provide a photocatalytic formaldehyde removal device that addresses the problems of water molecules combining with dust to form dirt that affects indoor cleanliness and aesthetics during the use of common photocatalytic formaldehyde removal devices, as well as the inconvenience of disassembling and assembling internal components.
[0004] This utility model achieves the above-mentioned objectives through the following technical solution: it includes an outer shell that houses a photocatalytic formaldehyde removal system and a main controller. The front of the outer shell is provided with a plurality of air outlet round holes, and the back of the outer shell is provided with a plurality of air inlet square holes. A touch panel is provided below the air outlet round holes and is electrically connected to the main controller. A guide mechanism is provided outside the air outlet round holes. The guide mechanism includes a guide rod and a collection box. A box compartment with a top opening is provided inside the outer shell. The box compartment passes through one side of the outer shell and is inserted into its interior and is slidably connected.
[0005] Furthermore, a ring-shaped handle is provided on one side of the compartment, and the ring-shaped handle is connected to the compartment via a pivot and can be rotated 180°.
[0006] Furthermore, the drainage rod is an inverted L-shaped plastic rod with an acute triangular cross-section. The two inclined surfaces of the vertical section of the drainage rod are provided with recessed arc-shaped drainage grooves. The edge line of the two arc-shaped drainage grooves near the included angle is designed with an arc transition. One end of the horizontal section of several drainage rods is fixed with a plug-in block. The plug-in block is inserted into the slot opened on the outer shell and fixed with screws.
[0007] Furthermore, the curved transition design guides the airflow, preventing the airflow from flowing directly along the slope and causing water vapor to linger, and also preventing water droplets from remaining at the edge when they slide off.
[0008] Furthermore, the collecting box extends through the outer shell, and its outer top is provided with a plurality of circular through holes. The draining rod passes through the circular through holes and its bottom surface is connected to the inner bottom surface of the collecting box. A long diameter square tube with an opening facing downward is installed on the inner bottom of the collecting box, and the top opening of the box compartment is directly below the opening of the long diameter square tube.
[0009] Furthermore, the vertical distance between the long-diameter square tube and the top of the box compartment shall not be less than 2mm.
[0010] Furthermore, a sliding buckle is provided above the ring handle, and a limiting slide frame is fitted on the outside of the sliding buckle. The limiting slide frame is connected to the outer shell by screws, and limiting protrusions are provided at both the upper and lower ends of the sliding buckle.
[0011] Furthermore, the position of each individual air-draining rod corresponds to the position of each individual row of air-outlet holes.
[0012] Furthermore, the innermost edge of the guide rod is no more than 5mm away from the air outlet hole.
[0013] Beneficial effects: This utility model is reasonably designed and has the following beneficial effects:
[0014] 1. In this utility model, by setting a guide mechanism and a box, the water molecules generated by the photocatalytic decomposition of formaldehyde condense into water droplets on the guide rod, slide down the arc-shaped guide groove to the collection box, and then fall into the box through the long diameter square tube, thus realizing the centralized collection of water vapor and dirt, avoiding dirt from adhering to the vicinity of the equipment, and reducing the number of cleaning times and difficulty.
[0015] 2. In this utility model, the design of the air guide rod on the outside of the air outlet hole can effectively guide the airflow and reduce airflow turbulence. At the same time, the air inlet square hole ensures rapid air intake, allowing indoor air to enter the equipment more efficiently for formaldehyde removal treatment, thus improving the formaldehyde removal effect. Meanwhile, the air guide rod is connected to the outer shell through the plug block, making it easy to disassemble and install, and convenient for individual cleaning or replacement. Furthermore, the positional relationship between the air guide rod and the air outlet hole ensures the stability of the airflow effect.
[0016] 3. In this utility model, the cooperation between the sliding buckle and the limiting slide frame can effectively fix the box compartment and prevent the box compartment from sliding during the operation of the equipment. The box compartment adopts a sliding connection method and is equipped with a ring handle, which makes it convenient for users to quickly take out the box compartment to pour out water and dirt. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the structure of this utility model;
[0018] Figure 2 This is a schematic diagram of the rear structure of the present invention;
[0019] Figure 3 This is a schematic diagram of the guiding mechanism structure of this utility model;
[0020] Figure 4 This is a partial structural diagram of the diversion rod of this utility model;
[0021] Figure 5 This is a partial structural diagram of the outer shell of this utility model.
[0022] In the diagram: 1-outer shell, 2-guidance mechanism, 3-compartment;
[0023] 11-Outlet round hole, 12-Inlet square hole, 13-Touch panel, 14-Slot, 21-Drainage rod, 22-Collection box, 23-Arc-shaped drainage groove, 24-Plug-in block, 25-Circular through hole, 26-Long diameter square tube, 31-Ring handle, 32-Sliding buckle, 33-Limiting slide frame, 34-Limiting protrusion. Detailed Implementation
[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0025] Combination Figures 1 to 5 The photocatalytic formaldehyde removal device shown includes an outer shell 1 with an internal photocatalytic formaldehyde removal system and a main controller. The front of the outer shell 1 is provided with a plurality of air outlet round holes 11, and the back of the outer shell 1 is provided with a plurality of air inlet square holes 12. A touch panel 13 is provided below the air outlet round holes 11 and is electrically connected to the main controller. A guide mechanism 2 is provided outside the air outlet round holes 11. The guide mechanism 2 includes a guide rod 21 and a collection box 22. The inner side of the outer shell 1 is provided with a box 3 with a top opening. The box 3 passes through one side of the outer shell 1 and is inserted into its inner side and is slidably connected.
[0026] The box compartment 3 has a ring handle 31 on one side, which is connected to the box compartment 3 by a pivot and can be rotated 180°.
[0027] The drainage rod 21 is an inverted L-shaped plastic rod with an acute triangular cross-section. The two inclined surfaces of the vertical section of the drainage rod 21 are provided with recessed arc-shaped drainage grooves 23. The edge line of the two arc-shaped drainage grooves 23 near the included angle is designed with an arc transition. Several drainage rods 21 have a plug-in block 24 fixed at one end of the horizontal section. The plug-in block 24 is inserted into the slot 14 opened on the outer shell 1 and fixed with screws.
[0028] The curved transition design guides the airflow, preventing the airflow from passing directly along the slope and causing water vapor to linger, and also preventing water droplets from remaining at the edge when they slide off.
[0029] The collecting box 22 penetrates the outer shell 1, and several circular through holes 25 are arranged on the top of its outer side. The diversion rod 21 passes through the circular through holes 25 and its bottom surface is connected to the inner bottom surface of the collecting box 22. A long diameter square tube 26 with an opening facing downward is installed on the bottom of the inner side of the collecting box 22. The top opening of the box compartment 3 is directly below the opening of the long diameter square tube 26.
[0030] The vertical distance between the long diameter square tube 26 and the top of the box 3 is not less than 2mm.
[0031] Above the ring handle 31, there is a sliding buckle 32. A limiting slide frame 33 is fitted on the outside of the sliding buckle 32. The limiting slide frame 33 is connected to the outer shell 1 by screws. Limiting protrusions 34 are provided at both the upper and lower ends of the sliding buckle 32.
[0032] The position of the single drain rod 21 corresponds to the position of the single air outlet 11.
[0033] The distance between the innermost edge of the guide rod 21 and the air outlet hole 11 shall not exceed 5mm.
[0034] Working principle: When this utility model is in use, after the equipment is started, the main controller controls the photocatalytic formaldehyde removal system to work. Indoor air quickly enters the equipment through the air inlet square hole 12 on the back of the outer shell 1. Under the action of the photocatalytic system, formaldehyde is decomposed into carbon dioxide and water molecules.
[0035] The airflow exits from the outlet hole 11. Since the innermost edge of the guide rod 21 is relatively close to the outlet hole 11, and the position of each guide rod 21 corresponds to that of a single outlet hole 11, with the innermost edge of the guide rod 21 being no more than 5mm from the outlet hole 11, water molecules will gather and condense into water droplets within the arc-shaped guide groove 23 of the guide rod 21. Under the influence of gravity, the water droplets slide down along the arc-shaped guide groove 23 on the inclined surface of the vertical section of the guide rod 21. Because the edge of the arc-shaped guide groove 23 near the included angle is designed with a curved transition, water droplet residue is avoided, and the water droplets eventually fall into the collection box 22.
[0036] Water droplets in the collection box 22 flow into the box compartment 3 through the long diameter square tube 26 for centralized collection. When cleaning is required, the user slides the sliding buckle 32 to release the fixing of the box compartment 3. The outer side of the sliding buckle 32 is fitted with a limiting slide frame 33, which is connected to the outer shell 1 by screws. The upper and lower ends of the sliding buckle 32 are provided with limiting protrusions 34. The ring handle 31 is connected to the box compartment 3 by a rotating shaft and can be rotated 180° to remove the box compartment 3 from the outer shell 1. After emptying the water and dirt inside, the box compartment 3 is put back into place, and the sliding buckle 32 is reset and fixed.
[0037] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.
[0038] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.
Claims
1. A photocatalytic formaldehyde removal device, comprising an outer shell (1) incorporating a photocatalytic formaldehyde removal system and a main controller, wherein the front of the outer shell (1) is provided with a plurality of air outlet round holes (11), and the back of the outer shell (1) is provided with a plurality of air inlet square holes (12), and a touch panel (13) is provided below the air outlet round holes (11) and electrically connected to the main controller, characterized in that: The air outlet hole (11) is provided with a guide mechanism (2) on the outside. The guide mechanism (2) includes a guide rod (21) and a collection box (22). The outer shell (1) is provided with a box compartment (3) with a top opening on the inside. The box compartment (3) passes through one side of the outer shell (1) and is inserted into its inside and slidably connected.
2. The photocatalytic formaldehyde removal device according to claim 1, characterized in that: The box compartment (3) is provided with a ring handle (31) on one side. The ring handle (31) is connected to the box compartment (3) through a pivot and can be rotated 180°.
3. The photocatalytic formaldehyde removal device according to claim 2, characterized in that: The drain rod (21) is an inverted L-shaped plastic rod with an acute triangular cross-section. The two inclined surfaces of the vertical section of the drain rod (21) are provided with recessed arc-shaped drain grooves (23). The edge line of the two arc-shaped drain grooves (23) near the included angle is designed with an arc transition. One end of the horizontal section of several drain rods (21) is fixedly provided with a plug block (24). The plug block (24) is inserted into the slot (14) opened on the outer shell (1) and fixed with screws.
4. The photocatalytic formaldehyde removal device according to claim 3, characterized in that: The collecting box (22) penetrates the outer shell (1), and its outer top is provided with a number of circular through holes (25). The diversion rod (21) passes through the circular through holes (25) and its bottom surface is connected to the inner bottom surface of the collecting box (22). A long diameter square tube (26) with an opening facing downward is installed on the inner bottom of the collecting box (22). The top opening of the box compartment (3) is directly below the opening of the long diameter square tube (26).
5. A photocatalytic formaldehyde removal device according to claim 4, characterized in that: Above the ring handle (31) is a sliding buckle (32), and a limiting slide frame (33) is fitted on the outside of the sliding buckle (32). The limiting slide frame (33) is connected to the outer shell (1) by screws. Limiting protrusions (34) are provided at both the upper and lower ends of the sliding buckle (32).
6. The photocatalytic formaldehyde removal device according to claim 5, characterized in that: The position of the single flow guide rod (21) corresponds to the position of the single row of air outlet holes (11).