Automatic air circulation ventilation device

By using a snap-fit ​​structure between the snap-fit ​​rod and the fixing plate, along with a pry bar design, the problem of cumbersome disassembly of traditional ventilation devices is solved, enabling convenient maintenance and efficient air circulation ventilation, while improving the device's sealing performance and service life.

CN224120434UActive Publication Date: 2026-04-14SHANDONG SHUANGEN AIR CONDITIONING & VENTILATION EQUIPMENT CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHANDONG SHUANGEN AIR CONDITIONING & VENTILATION EQUIPMENT CO LTD
Filing Date
2025-05-08
Publication Date
2026-04-14

AI Technical Summary

Technical Problem

The installation and dismantling of traditional ventilation devices is cumbersome, time-consuming, and labor-intensive, and may damage the connecting parts, affecting the stability of the equipment.

Method used

It adopts a snap-fit ​​structure between the snap-fit ​​rod and the fixed plate, and a lever disassembly design consisting of a pry bar and a top block, combined with sealing gaskets and positioning pins, to simplify maintenance and cleaning operations.

Benefits of technology

It enables convenient disassembly and installation of the device, improves sealing and ventilation efficiency, extends equipment life, and reduces maintenance costs.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224120434U_ABST
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Abstract

The utility model discloses an automatic air circulation ventilation device, which relates to the technical field of ventilation devices and comprises a fan body, turbine fan blades are arranged in the fan body, a positioning pin is fixedly mounted at the side end of the fan body, a sealing gasket is arranged at the side end of the fan body, a side cover plate is arranged on the right side of the fan body, and the side cover plate is fixedly mounted on the side end of the fan body. According to the novel fan, the lock catch mechanisms are arranged at the upper end and the lower end of the fan body, and the lock catch mechanisms adopt a clamping structure of a clamping rod and a fixing plate and a lever disassembly design composed of a pinch bar and a top block, so that maintenance and cleaning work of the ventilation device become extremely simple and convenient. When the turbine fan blades need to be cleaned or the filter screen needs to be replaced, a user only needs to press the pinch bar with hands, the side cover plate can be easily disassembled and assembled, complex tools and professional skills are not needed, the maintenance time and cost are saved, and meanwhile the service life of the ventilation device is prolonged.
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Description

Technical Field

[0001] This utility model relates to the field of ventilation device technology, and in particular to an automatic air circulation ventilation device. Background Technology

[0002] The working principle of a centrifugal blower is mainly to use several rotating impellers to do work on the gas, increase the kinetic energy of the gas, and then increase the gas pressure through centrifugal action and diffusion process to achieve a certain air volume and air pressure, thereby achieving the technical effect of large flow and high pressure air delivery.

[0003] Air circulation and ventilation devices in the prior art include the following categories:

[0004] Centrifugal fans: suitable for ventilation systems with large air volume and medium to low pressure.

[0005] Axial flow fans: characterized by large air volume and low pressure.

[0006] Mixed-flow fans: combine the features of centrifugal and axial-flow fans.

[0007] Air filters: used to remove impurities such as dust, pollen, and smoke from the air, improving air quality.

[0008] Air heater: Used in cold seasons or in processes that require heated air.

[0009] Air cooler: Uses a refrigerant (such as chilled water, refrigerant, etc.) to cool the air.

[0010] Air humidifier: Used to increase the moisture content in the air and improve air humidity.

[0011] Air dehumidifier: On the contrary, it is used to remove excess moisture from the air and reduce the humidity of the air.

[0012] In the current ventilation field, traditional ventilation devices generally have some problems, and the installation and disassembly of many ventilation devices are quite cumbersome. For example, some ventilation devices are fixed with bolts, nuts and other connectors. When it is necessary to clean, repair or replace internal components, operators need to spend a lot of time and energy to tighten multiple bolts and nuts. This is inconvenient and inefficient, which not only increases maintenance costs, but may also damage the connectors due to frequent disassembly, affecting the overall stability of the equipment. Utility Model Content

[0013] Technical problems to be solved

[0014] To address the shortcomings of existing technologies, this utility model provides an automatic air circulation ventilation device, solving several problems commonly found in traditional ventilation devices in the current ventilation field. For example, many ventilation devices use bolts and nuts for fixing, requiring operators to spend considerable time and effort tightening multiple bolts and nuts when cleaning, repairing, or replacing internal components. This is inconvenient and inefficient, increasing maintenance costs and potentially damaging the connecting parts due to frequent disassembly, thus affecting the overall stability of the equipment.

[0015] Technical solution

[0016] To achieve the above objectives, this utility model provides the following technical solution:

[0017] An automatic air circulation ventilation device includes a fan body with turbine blades inside. A positioning pin is fixedly installed on the side end of the fan body, and a sealing gasket is provided on the side end of the fan body. A side cover plate is provided on the right side of the fan body, and the side cover plate is slidably connected to the positioning pin. A sealing gasket is provided between the fan body and the side cover plate. Locking mechanisms are provided at both the upper and lower ends of the fan body. The locking mechanism includes a fixing plate, and fixing grooves are opened on both sides of the fixing plate. A connecting rod is provided on the side end of the fixing plate, and two snap-fit ​​rods are fixedly installed on the connecting rod. The two snap-fit ​​rods are slidably installed in the two fixing grooves opened in the fixing plate, respectively.

[0018] Preferably, two top blocks are fixedly installed on the connecting rod, and each of the two top blocks is connected to a pry bar, and the two pry bars are respectively fixedly connected to two locking rods.

[0019] Preferably, each of the two locking rods is provided with a triangular protrusion, and is locked to the fixing plate through the triangular protrusion. A filter screen is fixedly installed between the connecting rods in the two sets of locking mechanisms, and an air inlet is provided on the filter screen.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] In this new design, locking mechanisms are installed at both the upper and lower ends of the fan body. These mechanisms employ a snap-fit ​​structure between the locking rod and the fixing plate, along with a lever-type disassembly design consisting of a pry bar and a top block. This makes the maintenance and cleaning of the ventilation system extremely convenient. When it is necessary to clean the turbine blades or replace the filter, the user can easily remove and install the side cover by simply pressing the pry bar, without the need for complex tools or professional skills. This saves maintenance time and costs, and also extends the service life of the ventilation system.

[0022] In this new design, a sealing gasket is installed between the fan body and the side cover plate, and the side cover plate is precisely positioned using locating pins, which greatly improves the sealing performance of the ventilation device. During operation, the improved sealing performance effectively prevents air leakage, allowing the wind pressure generated by the turbine blades to fully contribute to the air circulation process, significantly improving ventilation efficiency and ensuring that the air in the space can be quickly and effectively circulated and renewed, providing users with a fresher and more comfortable environment. Attached Figure Description

[0023] The above description is only an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it in accordance with the contents of the specification, the preferred embodiments of this utility model are described in detail below with reference to the accompanying drawings.

[0024] Figure 1 This is a structural diagram of the entire utility model;

[0025] Figure 2 This is a structural diagram of the fan body of this utility model;

[0026] Figure 3 This is a structural diagram of the turbine fan blade of this utility model;

[0027] Figure 4 This is a structural diagram of the side cover plate of this utility model;

[0028] Figure 5 This utility model Figure 2 Enlarged view of the structure at point A.

[0029] Legend: 11. Connecting rod; 12. Pry bar; 13. Top block; 14. Snap-fit ​​rod; 15. Fixing plate; 16. Fixing groove; 17. Filter screen; 18. Air inlet duct; 21. Fan body; 22. Positioning pin; 23. Sealing gasket; 24. Turbine blade; 25. Side cover plate. Detailed Implementation

[0030] This application provides an automatic air circulation ventilation device that effectively solves some common problems in traditional ventilation devices in the current ventilation field. For example, the installation and disassembly of many ventilation devices are cumbersome. Some ventilation devices use bolts, nuts, and other connectors for fixing. When cleaning, repairing, or replacing internal components, operators need to spend a lot of time and effort tightening multiple bolts and nuts, which is inconvenient and inefficient. This not only increases maintenance costs but may also damage the connectors due to frequent disassembly, affecting the overall stability of the equipment.

[0031] Example

[0032] like Figures 1-5As shown, the technical solution in this application aims to effectively address some common problems with traditional ventilation devices in the current ventilation field. The installation and disassembly of many ventilation devices are quite cumbersome. For example, some ventilation devices use bolts, nuts, and other connectors for fixing. When cleaning, repairing, or replacing internal components, operators need to spend a lot of time and effort tightening multiple bolts and nuts, which is inconvenient and inefficient. This not only increases maintenance costs but may also damage the connectors due to frequent disassembly, affecting the overall stability of the equipment. The overall approach is as follows:

[0033] To address the problems existing in the prior art, this utility model provides an automatic air circulation ventilation device, including a fan body 21, which plays a core supporting and operational role in the entire ventilation device. The fan body 21 contains turbine blades 24. When the device is turned on, the turbine blades 24 rotate at high speed. Thanks to their special blade design and aerodynamic principles, they can efficiently generate strong wind pressure, rapidly drawing in and expelling air, thereby achieving rapid air circulation ventilation. This greatly improves the air quality in the space, creating a fresh and comfortable environment for users. A positioning pin 22 is fixedly installed on the side end of the fan body 21. The main function is to provide precise positioning for the installation of the side cover plate 25. The side end of the fan body 21 is provided with a sealing gasket 23, and the right side of the fan body 21 is provided with a side cover plate 25. The side cover plate 25 is slidably connected to the positioning pin 22. This design makes the installation process of the side cover plate 25 more convenient and accurate. At the same time, a sealing gasket 23 is provided between the fan body 21 and the side cover plate 25. The sealing gasket 23 has good elasticity and sealing performance. After the side cover plate 25 is installed in place, it can tightly fill the gap between the fan body 21 and the side cover plate 25, effectively preventing air leakage, ensuring the sealing of the ventilation device, and thus improving ventilation efficiency.

[0034] The fan body 21 is equipped with locking mechanisms at both the top and bottom. The locking mechanisms greatly facilitate the maintenance and cleaning of the ventilation device. The locking mechanisms include a fixing plate 15, with fixing grooves 16 on both sides of the fixing plate 15. A connecting rod 11 is provided on the side of the fixing plate 15, and two snap-fit ​​rods 14 are fixedly installed on the connecting rod 11. The two snap-fit ​​rods 14 are slidably installed in the two fixing grooves 16 on the fixing plate 15. When the installation operation is performed, this sliding connection method allows the snap-fit ​​rods 14 to smoothly enter the fixing grooves 16, providing a basis for subsequent snap-fit.

[0035] Two top blocks 13 are fixedly installed on the connecting rod 11. Each top block 13 is connected to a pry bar 12. The two pry bars 12 are fixedly connected to two locking rods 14 respectively. Each locking rod 14 is provided with a triangular protrusion, and the triangular protrusion is locked to the fixing plate 15. This locking structure is very stable and can ensure that the side cover plate 25 is firmly installed on the fan body 21, ensuring the stability of the ventilation device during normal operation. Moreover, when the device needs to be maintained, such as cleaning the turbine fan blades 24 or replacing the filter screen 17, simply press the pry bar 12 by hand. Using the lever principle of the top block 13, the locking rod 14 moves upward, and the triangular protrusion separates from the fixing plate 15, so that the side cover plate 25 can be easily removed. The operation is simple and convenient.

[0036] A filter screen 17 is fixedly installed between the connecting rods 11 in the two sets of locking mechanisms. An air inlet duct 18 is provided on the filter screen 17. The filter screen 17 can effectively filter dust, impurities and particulate matter in the air, further improving the quality of the air output by the ventilation device, protecting internal components such as the turbine fan blades 24, and extending the service life of the ventilation device. The air inlet duct 18 plays the role of guiding the air in. Its special structural design can optimize the air inflow path, reduce the air flow resistance, and improve the air intake efficiency, thereby enhancing the performance of the entire ventilation device.

[0037] Working principle:

[0038] Air circulation ventilation process: When the equipment is put into use, the motor drives the turbine blades 24 inside the fan body 21 to rotate at high speed. During the rotation, the turbine blades 24 generate wind pressure due to their special structure and operation mode. Under the action of this wind pressure, air is continuously drawn into the equipment from the air inlet duct 18. Then, after passing through the airflow channel inside the fan body 21, it is finally discharged from the top of the fan body 21, thereby realizing air circulation ventilation and effectively improving the air quality in the space.

[0039] Equipment installation and dismantling process

[0040] Installation steps: When installing the equipment, first accurately place the sealing gasket 23 on the side of the fan body 21. The sealing gasket 23 must be tightly fitted onto the circumferential surface of the positioning pin 22 on the side of the fan body 21 to ensure the sealing of subsequent installation. Next, place the side cover plate 25 on the side of the fan body 21 and carefully align the holes on the side cover plate 25 with each positioning pin 22 to ensure precise correspondence. Then, align the locking mechanisms of the two connecting rods 11 at their disjointed ends with the two fixing plates 15 and insert them. Since the ends of the two locking rods 14 are designed with bevels, during the insertion process, the locking rods 14 can smoothly slide into the fixing grooves 16 opened in the fixing plates 15. When the locking rods 14 are fully slid in, the triangular blocks at their heads will be tightly engaged with the fixing plates 15. At this time, the installation of the side cover plate 25 is completed. Under the elastic force of the sealing gasket 23, the connection gaps between the various parts of the equipment are effectively filled, thereby ensuring the sealing of the equipment and preventing air leakage.

[0041] Disassembly steps: When it is necessary to clean the turbine fan blades 24 or maintain other parts of the equipment and remove the side cover plate 25, the operation is very simple. Just press the two pry bars 12 by hand. At this time, based on the lever principle of the top block 13, the pry bar 12 rotates with the top block 13 as the fulcrum. One end of the pry bar 12 is pressed and the other end will be lifted. This lifting action will drive the two locking rods 14 connected to the pry bar 12 to move upward, so that the triangular block at the head of the locking rod 14 separates from the fixing plate 15. After the locking rod 14 is completely disengaged from the fixing plate 15, the connecting rod 11 can be easily pulled out, thereby realizing the disassembly of the filter screen 17 and the side cover plate 25, which facilitates subsequent cleaning and maintenance work.

[0042] Finally, it should be noted that the above embodiments are merely examples for clearly illustrating the present invention and are not intended to limit the implementation. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.

Claims

1. An automatic air circulation ventilation device, comprising a fan body (21), characterized in that: The fan body (21) is provided with a turbine blade (24) inside. A positioning pin (22) is fixedly installed on the side end of the fan body (21). A sealing gasket (23) is provided on the side end of the fan body (21). A side cover plate (25) is provided on the right side of the fan body (21). The side cover plate (25) and the positioning pin (22) are slidably connected through the fan body (21) and the side cover plate (25). A sealing gasket (23) is provided between the fan body (21) and the side cover plate (25). The fan body (21) is provided with a locking mechanism at both the upper and lower ends. The locking mechanism includes a fixing plate (15). The fixing plate (15) has a fixing groove (16) on both sides. The fixing plate (15) has a connecting rod (11) on its side. Two snap-fit ​​rods (14) are fixedly installed on the connecting rod (11). The two snap-fit ​​rods (14) are slidably installed in the two fixing grooves (16) opened in the fixing plate (15).

2. The automatic air circulation ventilation device according to claim 1, characterized in that: Two top blocks (13) are fixedly installed on the connecting rod (11).

3. An automatic air circulation ventilation device according to claim 2, characterized in that: Both of the top blocks (13) are connected to pry bars (12).

4. An automatic air circulation ventilation device according to claim 3, characterized in that: The two pry bars (12) are fixedly connected to the two snap-fit ​​rods (14) respectively.

5. An automatic air circulation ventilation device according to claim 4, characterized in that: Both of the aforementioned locking rods (14) are provided with triangular protrusions, and are locked to the fixing plate (15) through the triangular protrusions.

6. An automatic air circulation ventilation device according to claim 5, characterized in that: A filter screen (17) is fixedly installed between the connecting rods (11) in the two sets of locking mechanisms; The filter screen (17) is provided with an air inlet duct (18).