Novel reverse cutter groove type efficient air supply outlet

By combining a reverse-groove design with sealant, the problem of insufficient sealing of the high-efficiency air outlet is solved, enabling stable installation of the high-efficiency filter and uniform airflow diffusion, thereby improving air purification effect and the stability of the production environment.

CN224162722UActive Publication Date: 2026-04-24SAN QIAO ENVIRONMENTAL TECH (DONGGUAN) CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SAN QIAO ENVIRONMENTAL TECH (DONGGUAN) CO LTD
Filing Date
2025-01-19
Publication Date
2026-04-24

AI Technical Summary

Technical Problem

The existing high-efficiency air outlets are not well sealed, which leads to air leakage and affects the air purification effect, potentially causing serious consequences, especially in the pharmaceutical and electronics industries.

Method used

The reverse groove design, through the combination of inner and outer grooves and sealant, ensures stable installation and sealing of the HEPA filter. Buckles and pressure blocks are set at the connection of the housing to prevent the filter from moving and shaking. Combined with the diffuser, it achieves uniform airflow diffusion.

Benefits of technology

It improves the sealing performance and airflow uniformity of the air outlet, ensures air filtration effect, reduces installation difficulty and maintenance costs, and provides a stable working environment and production conditions.

✦ Generated by Eureka AI based on patent content.

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Patent Text Reader

Abstract

The utility model discloses a novel reverse knife groove type efficient air supply outlet which is mainly applied to the industries of medicine, sanitation, electronics, chemical engineering and the like with high requirements for air cleanliness. In order to solve the problem that the filtering effect is not ideal due to the poor sealing performance of a filter and a box body of an existing efficient air supply outlet, a structure formed by welding an upper box body and a lower box body is adopted, and a supporting assembly is arranged at the connecting position. A high-efficiency filter is fixed at the bottom of the lower box body, and horizontal and vertical movement of the high-efficiency filter is respectively limited through an internal buckle and a pressing block. Due to the unique reverse cutter groove design, the inner cutter groove and the outer cutter groove are folded edges of the upper box body and the lower box body respectively, and a mounting hole is formed between the inner cutter groove and the outer cutter groove and is filled with sealant to be matched with an EVA sealing rubber strip on a high-efficiency filter to form multiple sealing. The diffusion plate is mounted at the bottom to realize uniform diffusion of airflow. The sealing performance and the filtering effect of the air supply outlet are effectively improved, the installation efficiency of the filter is optimized, and the air supply outlet has the advantages of being stable in structure, even in airflow diffusion, easy to maintain and the like.
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Description

Technical Field

[0001] This utility model belongs to the field of air purifiers, and in particular relates to a novel reverse-groove type high-efficiency air outlet. Background Technology

[0002] In numerous industries such as pharmaceuticals, healthcare, electronics, and chemicals, stringent requirements exist for air cleanliness. As a key component of ventilation systems, the performance of high-efficiency air outlets directly impacts indoor air quality. Currently, common high-efficiency air outlets suffer from defects in their HEPA filter installation methods, with the HEPA filter strip and the outlet typically making planar contact. In practical use, this contact method is highly susceptible to poor sealing if the HEPA filter or outlet housing deforms, is defective, or if there is even a slight installation deviation. During air filtration, air can leak from these leaks, allowing unfiltered air to directly enter the room, preventing adequate filtration. This not only reduces air purification effectiveness but can also seriously impact the production environment, product quality, and personnel health. For example, in electronic chip manufacturing workshops, even tiny dust particles can cause chip short circuits or performance degradation; in pharmaceutical production, unclean air can contaminate drugs, threatening patient safety. Therefore, improving the sealing of high-efficiency air outlets and ensuring the filtration effect of HEPA filters has become an urgent problem to solve. Utility Model Content

[0003] The purpose of this utility model is to provide a novel reverse-groove type high-efficiency air outlet, aiming to solve the problems existing in the background art. To achieve this purpose, the technical solution adopted by this utility model is:

[0004] A novel reverse-groove type high-efficiency air outlet includes an upper housing, a lower housing, a support assembly, a high-efficiency filter, clips, and a pressure block. The upper and lower housings are welded together, and a support assembly is provided at the connection between the upper and lower housings. A high-efficiency filter is fixed at the center of the bottom of the lower housing. The high-efficiency filter is used to filter air. Multiple clips are provided inside the lower housing to prevent the high-efficiency filter from moving horizontally. A pressure block is also provided inside the lower housing. The pressure block and the support assembly are used to fix the high-efficiency filter and to prevent the high-efficiency filter from shaking vertically.

[0005] Preferably, the support component includes an inner groove, an outer groove, and a mounting hole. The bottom edge of the upper housing forms an inner groove, and the head side of the lower housing forms an outer groove. A mounting hole is formed between the inner groove and the outer groove.

[0006] Preferably, the inside of the mounting hole is filled with sealant.

[0007] Preferably, the top and bottom of the high-efficiency filter are provided with EVA sealing strips, which are connected to the sealant and the pressure block. The EVA sealing strips on the high-efficiency filter press right onto the mounting holes, which are filled with sealant. The sealant enhances the sealing performance and prevents the EVA sealant from being crushed by the knife groove.

[0008] Preferably, a flange ring is welded to the top of the upper housing, and the flange ring is used to connect to the external air vent.

[0009] Preferably, a diffuser is installed at the bottom of the lower housing with screws.

[0010] The beneficial effects of this utility model are:

[0011] Excellent sealing performance

[0012] This invention employs a unique reverse blade groove design. The inner blade groove is formed by the folded edge of the lower housing, and the outer blade groove is formed by the folded edge of the upper housing. A mounting hole is formed between the two and filled with sealant. The EVA sealing strip on the HEPA filter presses precisely onto the mounting hole. When the pressure block secures the HEPA filter via the support assembly, the reverse blade groove embeds into the EVA sealing strip, forming a three-tiered sealing barrier: the outer blade groove, the sealant, and the inner blade groove. This structure effectively avoids leakage problems caused by filter or housing deformation or defects, significantly improves the sealing performance of the air outlet, ensures that air is fully filtered by the HEPA filter, greatly enhances air purification effects, and meets the demands of industries with extremely high air quality requirements.

[0013] High-efficiency filter installation and positioning

[0014] Multiple clips inside the lower housing precisely position the HEPA filter, preventing horizontal movement and ensuring it remains centered throughout installation, perfectly aligning the EVA sealing strip with the reverse blade groove. Simultaneously, the pressure block and support components work together to effectively prevent vertical movement, guaranteeing the stability and accuracy of the filter installation. This not only improves installation efficiency, reduces installation time and labor costs, but also lowers the risk of seal failure due to improper installation, ensuring long-term stable operation of the air outlet.

[0015] Uniform airflow diffusion

[0016] The diffuser plate, screwed on at the bottom of the lower enclosure, evenly distributes the airflow filtered by the high-efficiency filter throughout the indoor space. This ensures uniform airflow velocity and a more balanced distribution of temperature and humidity, effectively preventing discomfort caused by excessively fast or slow airflow in certain areas. This provides a more comfortable working environment and also helps ensure the stability of processes requiring strict environmental conditions, such as the precision assembly steps in electronic equipment manufacturing, preventing product quality issues caused by unstable airflow.

[0017] The structure is robust and easy to maintain.

[0018] The upper and lower housings are welded together, ensuring the overall structural stability of the air outlet and enabling it to withstand pressure and vibration without easily deforming or being damaged. Even under long-term use and subjected to external impacts or system vibrations, it maintains good structural integrity, guaranteeing the normal operation of the air outlet. Furthermore, its design facilitates easy operation when replacing HEPA filters or performing equipment maintenance, allowing for quick disassembly and installation of components, reducing maintenance difficulty and costs, minimizing equipment downtime, and improving production efficiency. Attached Figure Description

[0019] Figure 1 This is an overall schematic diagram of an embodiment of the present utility model;

[0020] Figure 2 A cross-sectional structural schematic diagram provided for an embodiment of this utility model;

[0021] Figure 3 A schematic diagram of the support component structure provided for an embodiment of this utility model.

[0022] The following are the labeling elements in the figure:

[0023] 1. Upper housing; 2. Lower housing; 3. Support assembly; 31. Inner knife groove; 32. Outer knife groove; 33. Mounting hole; 4. High-efficiency filter; 5. Snap fastener; 6. Pressure block; 7. Sealant; 8. EVA sealing strip; 9. Flange ring; 10. Diffuser. Detailed Implementation

[0024] To facilitate understanding of this utility model, a more complete description will be given below with reference to the accompanying drawings. The drawings illustrate preferred embodiments of this utility model. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure of this utility model.

[0025] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there may be an intermediate element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intermediate element present. Conversely, when an element is referred to as being "directly on" another element, there is no intermediate element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementations. The terms "upper end," "lower end," "left side," "right side," "front end," "rear end," and similar expressions used herein refer to the positional relationship with reference to the accompanying drawings.

[0026] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0027] The technical solution of this patent will be further described in detail below with reference to specific embodiments.

[0028] like Figures 1-3 As shown, this utility model embodiment provides a novel reverse-groove type high-efficiency air outlet, including an upper housing 1, a lower housing 2, a support assembly 3, a high-efficiency filter 4, buckles 5, and a pressure block 6. The upper housing 1 and the lower housing 2 are welded together. A support assembly 3 is provided at the connection between the upper housing 1 and the lower housing 2. A high-efficiency filter 4 is fixed at the center of the bottom of the lower housing 2. The high-efficiency filter 4 is used to filter air. Multiple buckles 5 are provided inside the lower housing 2 to prevent the high-efficiency filter 4 from moving horizontally. A pressure block 6 is also provided inside the lower housing 2. The pressure block 6 and the support assembly 3 are used to fix the high-efficiency filter 4 and to prevent the high-efficiency filter 4 from shaking vertically.

[0029] In this embodiment, the supporting component includes an inner groove 31, an outer groove 32, and a mounting hole 33. The bottom edge of the upper housing 1 forms the inner groove 31 inward, and the head side of the lower housing 2 forms the outer groove 32 inward. The mounting hole 33 is formed between the inner groove 31 and the outer groove 32.

[0030] In this embodiment, sealant 7 is installed inside the mounting hole 33.

[0031] In this embodiment, EVA sealing strips 8 are provided at the top and bottom of the high-efficiency filter 4. The EVA sealing strips 8 are connected to the sealant 7 and the pressure block 6. The EVA sealing strips 8 on the high-efficiency filter 4 press against the mounting hole 33. The mounting hole 33 is fitted with the sealant 7. The sealant 7 can enhance the sealing performance and is used to prevent the EVA sealant 7 from being crushed by the knife groove.

[0032] In this embodiment, a flange ring 9 is welded to the top of the upper housing 1, and the flange ring 9 is used to connect to the external air vent.

[0033] In this embodiment, a diffuser 10 is screwed onto the bottom of the lower housing 2.

[0034] The above embodiments are only used to illustrate the present utility model and are not intended to limit the present utility model. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present utility model. Therefore, all equivalent technical solutions also fall within the scope of the present utility model. The patent protection scope of the present utility model should be defined by the claims.

Claims

1. A novel reverse-groove type high-efficiency air outlet, characterized in that: The device includes an upper housing, a lower housing, a support assembly, a high-efficiency filter, clips, and a pressure block. The upper housing and the lower housing are welded together. The support assembly is located at the connection between the upper housing and the lower housing. The high-efficiency filter is fixed at the center of the bottom of the lower housing. The high-efficiency filter is used to filter air. Multiple clips are provided inside the lower housing to prevent the high-efficiency filter from moving horizontally. The pressure block is also provided inside the lower housing. The pressure block and the support assembly are used to fix the high-efficiency filter and to prevent the high-efficiency filter from shaking vertically.

2. The novel reverse-groove high-efficiency air outlet according to claim 1, characterized in that: The support assembly includes an inner groove, an outer groove, and a mounting hole. The bottom edge of the upper housing forms the inner groove inward, and the head side of the lower housing forms the outer groove inward. A mounting hole is formed between the inner groove and the outer groove.

3. The novel reverse-groove high-efficiency air outlet according to claim 2, characterized in that: The mounting hole is filled with sealant.

4. The novel reverse-groove high-efficiency air outlet according to claim 3, characterized in that: The top and bottom of the high-efficiency filter are provided with EVA sealing strips, which are connected to the sealant and the pressure block. The EVA sealing strips on the high-efficiency filter press against the mounting hole, where the sealant is installed. The sealant enhances the sealing performance and prevents the EVA sealant from being crushed by the knife groove.

5. A novel reverse-groove high-efficiency air outlet according to claim 1, characterized in that: A flange ring is welded to the top of the upper housing, and the flange ring is used to connect to the external air vent.

6. The novel reverse-groove high-efficiency air outlet according to claim 1, characterized in that: A diffuser plate is installed at the bottom of the lower housing with screws.