Double-row air outlet mechanism on top
By using a top-mounted dual exhaust system, the design solves the problems of low efficiency and poor convenience of traditional exhaust systems with the help of a DC brushless motor and activated carbon filter. This achieves efficient filtration and easy replacement, prevents environmental pollution, and enhances the durability of the equipment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- KUNSHAN SEAGEAR AUTOMATION SYST CO LTD
- Filing Date
- 2025-06-20
- Publication Date
- 2026-06-16
AI Technical Summary
Traditional ventilation systems are inefficient, unable to effectively filter colored or harmful substances, leading to environmental pollution. They are also difficult to install, maintain, and clean.
It adopts a top-mounted dual-exhaust system, using a DC brushless motor to drive the shaft and fan. Combined with activated carbon filters one and two, it filters the air. The limit edge and sliding groove design make it easy to replace the filters, improving convenience and practicality.
It effectively filters harmful substances, prevents environmental pollution, improves equipment durability, and enhances installation and ease of use.
Smart Images

Figure CN224365012U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of ventilation mechanisms, specifically to a top-mounted double ventilation mechanism. Background Technology
[0002] Exhaust systems are mainly used to remove polluted indoor air or regulate airflow. Traditional technologies rely on motor-driven fans (such as axial and centrifugal fans) to achieve ventilation. Although the structure is simple, it has the problem of low efficiency. If the bottom of the exhaust vents or other ventilation outlets is equipped with guide rails or mechanical equipment such as drying and heating devices, the low exhaust efficiency will lead to problems such as overheating of the environment and gas accumulation, which will affect the durability of the equipment in the working environment and may even cause corrosion of the mechanical equipment near the top.
[0003] Traditional working environments rely solely on a single exhaust vent at the top for heat dissipation and ventilation. This simple structure only serves to exhaust gases and cannot adequately filter out colored or harmful substances in the air. Directly releasing the gases into the external environment can cause pollution. Furthermore, the exhaust system is not easy to install and is difficult to maintain and clean.
[0004] Therefore, it is necessary to invent a top-mounted double exhaust mechanism to solve the above problems. Utility Model Content
[0005] The purpose of this utility model is to provide a top-mounted double exhaust mechanism. Through the operation of a DC brushless motor and the rotation of a fan driven by a rotating shaft, air is drawn in through the air inlet at the bottom of the limiting seat. When the air enters the exhaust chamber inside the limiting seat, it is filtered sequentially through activated carbon filter one and activated carbon filter two in the air handling device before being discharged, effectively avoiding environmental pollution. The activated carbon filter one, activated carbon filter two, and the slider are movably engaged within the limiting edge and the sliding groove, facilitating subsequent replacement of activated carbon filter one and activated carbon filter two, improving practicality and ease of use (summarize the benefits). This solves the problems of existing technologies that cannot adequately filter colored or harmful substances in the gas, causing environmental pollution if the gas is directly discharged into the external environment, and having poor installation convenience and difficulty in maintenance and cleaning.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a top-mounted double exhaust mechanism, comprising a top plate, an exhaust mechanism body, and an air handling device. The top plate has equidistant exhaust slots, and the number of exhaust slots is set to multiple. The exhaust mechanism body is movably engaged within the multiple exhaust slots. The exhaust mechanism body includes a mounting cylinder, and a limiting seat is fixedly connected to the bottom of the mounting cylinder. An air handling device is fixedly installed inside the limiting seat. The air handling device includes two limiting edges, which are symmetrically fixed to the inner wall of the limiting seat. Activated carbon filter one and activated carbon filter two are movably engaged between the two limiting edges. Positioning grooves matching the activated carbon filter one and activated carbon filter two are opened on the inner sides of both limiting edges. Locking blocks are fixedly connected to the rear sides of both activated carbon filter one and activated carbon filter two. Locking grooves matching the locking blocks are opened on the rear side of the inner wall of the limiting seat.
[0007] Preferably, both sides of the limiting seat are fixedly connected with mounting ears, and the mounting ears are movably engaged with fixing bolts. The bottom of the top plate is provided with threaded holes that match the fixing bolts.
[0008] Preferably, a sliding groove is provided on the front side of the limiting seat, a slider is movably engaged inside the sliding groove, guide edges are fixedly connected to both sides of the slider, and guide grooves matching the guide edges are provided on both sides of the inner wall of the sliding groove.
[0009] Preferably, magnets are symmetrically fixed to the rear side of the slider, and a magnet that cooperates with the magnet is fixedly connected to the rear side of the inner wall of the guide groove.
[0010] Preferably, a connecting handle is fixedly connected to the bottom of the slider.
[0011] Preferably, the mounting cylinder has a fixing frame detachably connected to it by screws, a DC brushless motor is installed inside the fixing frame, the output shaft of the DC brushless motor is fixedly connected to a rotating shaft by a coupling, and a fan is fixedly connected to the end of the rotating shaft.
[0012] The technical effects and advantages provided by this utility model in the above technical solution are as follows:
[0013] 1. The operation of the DC brushless motor, in conjunction with the rotating shaft, drives the fan to rotate, drawing air in through the air inlet at the bottom of the limit seat. As the air enters the exhaust chamber inside the limit seat, it is filtered sequentially through activated carbon filter one and activated carbon filter two in the air handling unit before being discharged, effectively preventing environmental pollution. Two rows of multiple exhaust mechanisms composed of fans and air handling units are installed in the top plate, improving efficiency and solving the problem of corrosion of drive equipment such as guide rails near the top, thus enhancing the durability of the equipment. Activated carbon filter one, activated carbon filter two, and the slider are movably engaged within the limit edge and slide groove, facilitating subsequent replacement of activated carbon filter one and activated carbon filter two, improving practicality and ease of use. Attached Figure Description
[0014] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this invention. For those skilled in the art, other drawings can be obtained based on these drawings.
[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0016] Figure 2 This is a top view of the connection between the top plate and the fan in this utility model.
[0017] Figure 3 This is a schematic diagram of the separation structure of the top plate, the exhaust mechanism body, and the limiting seat of this utility model;
[0018] Figure 4 For the present utility model Figure 3 Enlarged structural diagram at point A in the middle;
[0019] Figure 5 This is a schematic cross-sectional view of the connection between the limiting seat and the slider of this utility model;
[0020] Figure 6 This is a schematic diagram of the cross-sectional structure of the connection between the limiting seat and the exhaust mechanism body of this utility model;
[0021] Figure 7 This is a bottom view cross-sectional diagram of the connection between the limiting seat and the activated carbon filter screen of this utility model.
[0022] Explanation of reference numerals in the attached figures:
[0023] 1. Top plate; 2. Exhaust vent slot; 3. Exhaust mechanism body; 4. Mounting ear; 5. Fixing bolt; 6. Threaded hole; 7. Limit seat; 701. Mounting cylinder; 8. Air handling unit; 9. Limit edge; 10. Activated carbon filter screen one; 11. Activated carbon filter screen two; 12. Positioning groove; 13. Locking block; 14. Locking groove; 15. Sliding groove; 16. Sliding block; 17. Guide edge; 18. Guide groove; 19. Magnet; 20. Magnetite; 21. Connecting handle; 22. Fixing bracket; 23. DC brushless motor; 24. Rotating shaft; 25. Fan. Detailed Implementation
[0024] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.
[0025] This utility model provides, for example Figure 1-7 The top-mounted double exhaust mechanism shown includes a top plate 1, an exhaust mechanism body 3, and an air handling device 8. The top plate 1 has multiple exhaust slots 2 evenly spaced inside. The exhaust mechanism body 3 is movably engaged within each exhaust slot 2. The exhaust mechanism body 3 includes a mounting cylinder 701, with a limiting seat 7 fixedly connected to its bottom. An air handling device 8 is fixedly installed inside the limiting seat 7. The air handling device 8 includes two limiting edges 9, symmetrically fixed to the inner wall of the limiting seat 7. Activated carbon filter one 10 and activated carbon filter two 11 are movably engaged between the two limiting edges 9. Positioning grooves 12 matching the activated carbon filter one 10 and activated carbon filter two 11 are provided on the inner sides of each of the two limiting edges 9. Each activated carbon filter screen 11 has a locking block 13 fixedly connected to its rear side. The inner wall of the limiting seat 7 has a locking groove 14 that matches the locking block 13. Multiple exhaust vent slots 2 are grouped together, and two groups are set on the top plate 1. The two groups of exhaust vent slots 2 are arranged in two rows. The structure of the mounting cylinder 701 matches the exhaust vent slot 2 and can replace the exhaust vent slot 2 for exhaust work. The sides of activated carbon filter screen 10 and activated carbon filter screen 2 match the structure of the positioning groove 12. By inserting into the positioning groove 12, they play a positioning and locking role, which facilitates the subsequent disassembly of activated carbon filter screen 10 and activated carbon filter screen 2. When the slider 16 is positioned in the sliding groove 15, it can press the activated carbon filter screen 10 and activated carbon filter screen 2 to seal them. The locking block 13 and the locking groove 14 are correspondingly engaged to achieve auxiliary positioning, so that they are stably placed inside the limiting seat 7.
[0026] The limit seat 7 has mounting ears 4 fixedly connected to both sides. The mounting ears 4 are fitted with fixing bolts 5. The bottom of the top plate 1 has threaded holes 6 that match the fixing bolts 5. The mounting ears 4, fixing bolts 5 and threaded holes 6 work together to fix the exhaust mechanism body 3 to the top plate 1.
[0027] The front side of the limiting seat 7 is provided with a sliding groove 15. A slider 16 is movably engaged inside the sliding groove 15. Guide edges 17 are fixedly connected to both sides of the slider 16. Guide grooves 18 matching the guide edges 17 are provided on both sides of the inner wall of the sliding groove 15. The slider 16 can move in the space within the sliding groove 15 by sliding along the guide edges 17 and the guide grooves 18. It can then be directly separated from the limiting seat 7, making it easy to pull out the activated carbon filter screen 10 and the activated carbon filter screen 11.
[0028] Magnets 19 are symmetrically fixed to the rear side of slider 16, and magnets 20 matching magnets 19 are fixedly connected to the rear side of the inner wall of guide groove 18. When magnets 19 and magnets 20 cooperate to attract each other, slider 16 can be stably connected to the slide groove 15.
[0029] A connecting handle 21 is fixedly connected to the bottom of slider 16.
[0030] The mounting cylinder 701 is detachably connected to a mounting bracket 22 by screws. A brushless DC motor 23 is installed inside the mounting bracket 22. The output shaft of the brushless DC motor 23 is fixedly connected to a rotating shaft 24 via a coupling. A fan 25 is fixedly connected to the end of the rotating shaft 24. The mounting bracket 22 provides fixed support for the brushless DC motor 23. The mounting bracket 22 and the mounting cylinder 701 can be separated to facilitate the maintenance of the brushless DC motor 23.
[0031] The working principle of this practical application is as follows:
[0032] The exhaust mechanism body 3 is installed and fixed to the exhaust port slot 2 by fixing bolts 5, and the DC brushless motor 23 is driven to operate, so that the rotating shaft 24 drives the fan 25 to rotate. The internal air is drawn in from the bottom of the limit seat 7. When the air passes through the internal cavity of the limit seat 7, it is filtered by the activated carbon filter 10 and activated carbon filter 21 inside the air handling device 8 and is discharged into the environment without polluting the environment. The activated carbon filter 10 and activated carbon filter 21 can be easily replaced when the slider 16 is slid out later.
[0033] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.
Claims
1. A top-mounted double exhaust system, comprising a top plate (1), an exhaust system body (3), and an air handling unit (8), characterized in that: The top plate (1) has equidistantly spaced exhaust vent slots (2) inside, and the number of exhaust vent slots (2) is set to multiple. An exhaust mechanism body (3) is movably engaged inside the multiple exhaust vent slots (2). The exhaust mechanism body (3) includes a mounting cylinder (701). The bottom of the mounting cylinder (701) is fixedly connected to a limiting seat (7). An air handling device (8) is fixedly installed inside the limiting seat (7). The air handling device (8) includes a limiting edge (9) inside. The number of limiting edges (9) is set to two. (9) Symmetrically fixed to the inner wall of the limiting seat (7), activated carbon filter screen one (10) and activated carbon filter screen two (11) are movably engaged between the two limiting edges (9), and positioning grooves (12) matching the activated carbon filter screen one (10) and activated carbon filter screen two (11) are opened on the inner side of the two limiting edges (9), and locking blocks (13) are fixedly connected to the rear side of the activated carbon filter screen one (10) and activated carbon filter screen two (11), and locking grooves (14) matching the locking blocks (13) are opened on the rear side of the inner wall of the limiting seat (7).
2. The top-mounted double-exhaust ventilation mechanism according to claim 1, characterized in that: The limiting seat (7) is fixedly connected to two sides with mounting ears (4), and the mounting ears (4) are movably engaged with fixing bolts (5). The bottom of the top plate (1) is provided with threaded holes (6) that match the fixing bolts (5).
3. The top-mounted double-exhaust ventilation mechanism according to claim 2, characterized in that: The front side of the limiting seat (7) is provided with a sliding groove (15), and a slider (16) is movably engaged inside the sliding groove (15). Guide edges (17) are fixedly connected to both sides of the slider (16), and guide grooves (18) matching the guide edges (17) are provided on both sides of the inner wall of the sliding groove (15).
4. The top-mounted double-exhaust ventilation mechanism according to claim 3, characterized in that: Magnets (19) are symmetrically fixed to the rear side of the slider (16), and magnets (20) that cooperate with the magnets (19) are fixedly connected to the rear side of the inner wall of the guide groove (18).
5. The top-mounted double exhaust ventilation mechanism according to claim 4, characterized in that: The bottom of the slider (16) is fixedly connected to a connecting handle (21).
6. The top-mounted double exhaust ventilation mechanism according to claim 1, characterized in that: The mounting cylinder (701) is detachably connected to a fixing frame (22) by screws. A DC brushless motor (23) is installed inside the fixing frame (22). The output shaft of the DC brushless motor (23) is fixedly connected to a rotating shaft (24) by a coupling. A fan (25) is fixedly connected to the end of the rotating shaft (24).